diff options
Diffstat (limited to 'compiler/rustc_target/src/spec')
228 files changed, 8783 insertions, 0 deletions
diff --git a/compiler/rustc_target/src/spec/aarch64_apple_darwin.rs b/compiler/rustc_target/src/spec/aarch64_apple_darwin.rs new file mode 100644 index 000000000..9d36e37d7 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_apple_darwin.rs @@ -0,0 +1,30 @@ +use crate::spec::{FramePointer, LinkerFlavor, SanitizerSet, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::apple_base::opts("macos"); + base.cpu = "apple-a14".into(); + base.max_atomic_width = Some(128); + + // FIXME: The leak sanitizer currently fails the tests, see #88132. + base.supported_sanitizers = SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::THREAD; + + base.add_pre_link_args(LinkerFlavor::Gcc, &["-arch", "arm64"]); + base.link_env_remove.to_mut().extend(super::apple_base::macos_link_env_remove()); + + // Clang automatically chooses a more specific target based on + // MACOSX_DEPLOYMENT_TARGET. To enable cross-language LTO to work + // correctly, we do too. + let llvm_target = super::apple_base::macos_llvm_target("arm64"); + + Target { + llvm_target: llvm_target.into(), + pointer_width: 64, + data_layout: "e-m:o-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + mcount: "\u{1}mcount".into(), + frame_pointer: FramePointer::NonLeaf, + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_apple_ios.rs b/compiler/rustc_target/src/spec/aarch64_apple_ios.rs new file mode 100644 index 000000000..beb904239 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_apple_ios.rs @@ -0,0 +1,36 @@ +use super::apple_sdk_base::{opts, Arch}; +use crate::spec::{FramePointer, Target, TargetOptions}; + +pub fn target() -> Target { + // Clang automatically chooses a more specific target based on + // IPHONEOS_DEPLOYMENT_TARGET. + // This is required for the target to pick the right + // MACH-O commands, so we do too. + let arch = "arm64"; + let llvm_target = super::apple_base::ios_llvm_target(arch); + + Target { + llvm_target: llvm_target.into(), + pointer_width: 64, + data_layout: "e-m:o-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + features: "+neon,+fp-armv8,+apple-a7".into(), + max_atomic_width: Some(128), + forces_embed_bitcode: true, + frame_pointer: FramePointer::NonLeaf, + // Taken from a clang build on Xcode 11.4.1. + // These arguments are not actually invoked - they just have + // to look right to pass App Store validation. + bitcode_llvm_cmdline: "-triple\0\ + arm64-apple-ios11.0.0\0\ + -emit-obj\0\ + -disable-llvm-passes\0\ + -target-abi\0\ + darwinpcs\0\ + -Os\0" + .into(), + ..opts("ios", Arch::Arm64) + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_apple_ios_macabi.rs b/compiler/rustc_target/src/spec/aarch64_apple_ios_macabi.rs new file mode 100644 index 000000000..1dad07a9a --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_apple_ios_macabi.rs @@ -0,0 +1,32 @@ +use super::apple_sdk_base::{opts, Arch}; +use crate::spec::{FramePointer, LinkerFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let llvm_target = "arm64-apple-ios14.0-macabi"; + + let mut base = opts("ios", Arch::Arm64_macabi); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-target", llvm_target]); + + Target { + llvm_target: llvm_target.into(), + pointer_width: 64, + data_layout: "e-m:o-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + features: "+neon,+fp-armv8,+apple-a12".into(), + max_atomic_width: Some(128), + forces_embed_bitcode: true, + frame_pointer: FramePointer::NonLeaf, + // Taken from a clang build on Xcode 11.4.1. + // These arguments are not actually invoked - they just have + // to look right to pass App Store validation. + bitcode_llvm_cmdline: "-triple\0\ + arm64-apple-ios14.0-macabi\0\ + -emit-obj\0\ + -disable-llvm-passes\0\ + -Os\0" + .into(), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_apple_ios_sim.rs b/compiler/rustc_target/src/spec/aarch64_apple_ios_sim.rs new file mode 100644 index 000000000..b4e135f66 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_apple_ios_sim.rs @@ -0,0 +1,38 @@ +use super::apple_sdk_base::{opts, Arch}; +use crate::spec::{FramePointer, Target, TargetOptions}; + +pub fn target() -> Target { + let base = opts("ios", Arch::Arm64_sim); + + // Clang automatically chooses a more specific target based on + // IPHONEOS_DEPLOYMENT_TARGET. + // This is required for the simulator target to pick the right + // MACH-O commands, so we do too. + let arch = "arm64"; + let llvm_target = super::apple_base::ios_sim_llvm_target(arch); + + Target { + llvm_target: llvm_target.into(), + pointer_width: 64, + data_layout: "e-m:o-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + features: "+neon,+fp-armv8,+apple-a7".into(), + max_atomic_width: Some(128), + forces_embed_bitcode: true, + frame_pointer: FramePointer::NonLeaf, + // Taken from a clang build on Xcode 11.4.1. + // These arguments are not actually invoked - they just have + // to look right to pass App Store validation. + bitcode_llvm_cmdline: "-triple\0\ + arm64-apple-ios14.0-simulator\0\ + -emit-obj\0\ + -disable-llvm-passes\0\ + -target-abi\0\ + darwinpcs\0\ + -Os\0" + .into(), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_apple_tvos.rs b/compiler/rustc_target/src/spec/aarch64_apple_tvos.rs new file mode 100644 index 000000000..2e31d16dc --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_apple_tvos.rs @@ -0,0 +1,18 @@ +use super::apple_sdk_base::{opts, Arch}; +use crate::spec::{FramePointer, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "arm64-apple-tvos".into(), + pointer_width: 64, + data_layout: "e-m:o-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + features: "+neon,+fp-armv8,+apple-a7".into(), + max_atomic_width: Some(128), + forces_embed_bitcode: true, + frame_pointer: FramePointer::NonLeaf, + ..opts("tvos", Arch::Arm64) + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_apple_watchos_sim.rs b/compiler/rustc_target/src/spec/aarch64_apple_watchos_sim.rs new file mode 100644 index 000000000..3059f4214 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_apple_watchos_sim.rs @@ -0,0 +1,38 @@ +use super::apple_sdk_base::{opts, Arch}; +use crate::spec::{FramePointer, Target, TargetOptions}; + +pub fn target() -> Target { + let base = opts("watchos", Arch::Arm64_sim); + + // Clang automatically chooses a more specific target based on + // WATCHOS_DEPLOYMENT_TARGET. + // This is required for the simulator target to pick the right + // MACH-O commands, so we do too. + let arch = "arm64"; + let llvm_target = super::apple_base::watchos_sim_llvm_target(arch); + + Target { + llvm_target: llvm_target.into(), + pointer_width: 64, + data_layout: "e-m:o-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + features: "+neon,+fp-armv8,+apple-a7".into(), + max_atomic_width: Some(128), + forces_embed_bitcode: true, + frame_pointer: FramePointer::NonLeaf, + // Taken from a clang build on Xcode 11.4.1. + // These arguments are not actually invoked - they just have + // to look right to pass App Store validation. + bitcode_llvm_cmdline: "-triple\0\ + arm64-apple-watchos5.0-simulator\0\ + -emit-obj\0\ + -disable-llvm-passes\0\ + -target-abi\0\ + darwinpcs\0\ + -Os\0" + .into(), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_be_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/aarch64_be_unknown_linux_gnu.rs new file mode 100644 index 000000000..9bce82a19 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_be_unknown_linux_gnu.rs @@ -0,0 +1,18 @@ +use crate::abi::Endian; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "aarch64_be-unknown-linux-gnu".into(), + pointer_width: 64, + data_layout: "E-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + features: "+outline-atomics".into(), + max_atomic_width: Some(128), + mcount: "\u{1}_mcount".into(), + endian: Endian::Big, + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_be_unknown_linux_gnu_ilp32.rs b/compiler/rustc_target/src/spec/aarch64_be_unknown_linux_gnu_ilp32.rs new file mode 100644 index 000000000..c9ceb55dd --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_be_unknown_linux_gnu_ilp32.rs @@ -0,0 +1,21 @@ +use crate::abi::Endian; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_gnu_base::opts(); + base.max_atomic_width = Some(128); + + Target { + llvm_target: "aarch64_be-unknown-linux-gnu_ilp32".into(), + pointer_width: 32, + data_layout: "E-m:e-p:32:32-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + abi: "ilp32".into(), + features: "+outline-atomics".into(), + mcount: "\u{1}_mcount".into(), + endian: Endian::Big, + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_fuchsia.rs b/compiler/rustc_target/src/spec/aarch64_fuchsia.rs new file mode 100644 index 000000000..4634433c4 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_fuchsia.rs @@ -0,0 +1,15 @@ +use crate::spec::{SanitizerSet, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "aarch64-fuchsia".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + max_atomic_width: Some(128), + supported_sanitizers: SanitizerSet::ADDRESS | SanitizerSet::CFI, + ..super::fuchsia_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_kmc_solid_asp3.rs b/compiler/rustc_target/src/spec/aarch64_kmc_solid_asp3.rs new file mode 100644 index 000000000..6ea9ae266 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_kmc_solid_asp3.rs @@ -0,0 +1,19 @@ +use super::{RelocModel, Target, TargetOptions}; + +pub fn target() -> Target { + let base = super::solid_base::opts("asp3"); + Target { + llvm_target: "aarch64-unknown-none".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + linker: Some("aarch64-kmc-elf-gcc".into()), + features: "+neon,+fp-armv8".into(), + relocation_model: RelocModel::Static, + disable_redzone: true, + max_atomic_width: Some(128), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_linux_android.rs b/compiler/rustc_target/src/spec/aarch64_linux_android.rs new file mode 100644 index 000000000..c85f7f62a --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_linux_android.rs @@ -0,0 +1,25 @@ +use crate::spec::{SanitizerSet, Target, TargetOptions}; + +// See https://developer.android.com/ndk/guides/abis.html#arm64-v8a +// for target ABI requirements. + +pub fn target() -> Target { + Target { + llvm_target: "aarch64-linux-android".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + max_atomic_width: Some(128), + // As documented in https://developer.android.com/ndk/guides/cpu-features.html + // the neon (ASIMD) and FP must exist on all android aarch64 targets. + features: "+neon,+fp-armv8".into(), + supported_sanitizers: SanitizerSet::CFI + | SanitizerSet::HWADDRESS + | SanitizerSet::MEMTAG + | SanitizerSet::SHADOWCALLSTACK + | SanitizerSet::ADDRESS, + ..super::android_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_nintendo_switch_freestanding.rs b/compiler/rustc_target/src/spec/aarch64_nintendo_switch_freestanding.rs new file mode 100644 index 000000000..1b7161fbb --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_nintendo_switch_freestanding.rs @@ -0,0 +1,26 @@ +use super::{LinkerFlavor, LldFlavor, PanicStrategy, RelroLevel, Target, TargetOptions}; + +const LINKER_SCRIPT: &str = include_str!("./aarch64_nintendo_switch_freestanding_linker_script.ld"); + +/// A base target for Nintendo Switch devices using a pure LLVM toolchain. +pub fn target() -> Target { + Target { + llvm_target: "aarch64-unknown-none".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + link_script: Some(LINKER_SCRIPT.into()), + os: "horizon".into(), + max_atomic_width: Some(128), + panic_strategy: PanicStrategy::Abort, + position_independent_executables: true, + dynamic_linking: true, + executables: true, + relro_level: RelroLevel::Off, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_nintendo_switch_freestanding_linker_script.ld b/compiler/rustc_target/src/spec/aarch64_nintendo_switch_freestanding_linker_script.ld new file mode 100644 index 000000000..f3441e659 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_nintendo_switch_freestanding_linker_script.ld @@ -0,0 +1,78 @@ +OUTPUT_FORMAT(elf64-littleaarch64) +OUTPUT_ARCH(aarch64) +ENTRY(_start) + +PHDRS +{ + text PT_LOAD FLAGS(5); + rodata PT_LOAD FLAGS(4); + data PT_LOAD FLAGS(6); + bss PT_LOAD FLAGS(6); + dynamic PT_DYNAMIC; +} + +SECTIONS +{ + . = 0; + + .text : ALIGN(0x1000) { + HIDDEN(__text_start = .); + KEEP(*(.text.jmp)) + + . = 0x80; + + *(.text .text.*) + *(.plt .plt.*) + } + + /* Read-only sections */ + + . = ALIGN(0x1000); + + .module_name : { *(.module_name) } :rodata + + .rodata : { *(.rodata .rodata.*) } :rodata + .hash : { *(.hash) } + .dynsym : { *(.dynsym .dynsym.*) } + .dynstr : { *(.dynstr .dynstr.*) } + .rela.dyn : { *(.rela.dyn) } + + .eh_frame : { + HIDDEN(__eh_frame_start = .); + *(.eh_frame .eh_frame.*) + HIDDEN(__eh_frame_end = .); + } + + .eh_frame_hdr : { + HIDDEN(__eh_frame_hdr_start = .); + *(.eh_frame_hdr .eh_frame_hdr.*) + HIDDEN(__eh_frame_hdr_end = .); + } + + /* Read-write sections */ + + . = ALIGN(0x1000); + + .data : { + *(.data .data.*) + *(.got .got.*) + *(.got.plt .got.plt.*) + } :data + + .dynamic : { + HIDDEN(__dynamic_start = .); + *(.dynamic) + } + + /* BSS section */ + + . = ALIGN(0x1000); + + .bss : { + HIDDEN(__bss_start = .); + *(.bss .bss.*) + *(COMMON) + . = ALIGN(8); + HIDDEN(__bss_end = .); + } :bss +} diff --git a/compiler/rustc_target/src/spec/aarch64_pc_windows_gnullvm.rs b/compiler/rustc_target/src/spec/aarch64_pc_windows_gnullvm.rs new file mode 100644 index 000000000..59c6a95c2 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_pc_windows_gnullvm.rs @@ -0,0 +1,16 @@ +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::windows_gnullvm_base::opts(); + base.max_atomic_width = Some(64); + base.features = "+neon,+fp-armv8".into(); + base.linker = Some("aarch64-w64-mingw32-clang".into()); + + Target { + llvm_target: "aarch64-pc-windows-gnu".into(), + pointer_width: 64, + data_layout: "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_pc_windows_msvc.rs b/compiler/rustc_target/src/spec/aarch64_pc_windows_msvc.rs new file mode 100644 index 000000000..856ec4fb0 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_pc_windows_msvc.rs @@ -0,0 +1,15 @@ +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::windows_msvc_base::opts(); + base.max_atomic_width = Some(64); + base.features = "+neon,+fp-armv8".into(); + + Target { + llvm_target: "aarch64-pc-windows-msvc".into(), + pointer_width: 64, + data_layout: "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_freebsd.rs b/compiler/rustc_target/src/spec/aarch64_unknown_freebsd.rs new file mode 100644 index 000000000..2f39c4862 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_unknown_freebsd.rs @@ -0,0 +1,18 @@ +use crate::spec::{SanitizerSet, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "aarch64-unknown-freebsd".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + max_atomic_width: Some(128), + supported_sanitizers: SanitizerSet::ADDRESS + | SanitizerSet::CFI + | SanitizerSet::MEMORY + | SanitizerSet::THREAD, + ..super::freebsd_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_hermit.rs b/compiler/rustc_target/src/spec/aarch64_unknown_hermit.rs new file mode 100644 index 000000000..1d7269c8d --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_unknown_hermit.rs @@ -0,0 +1,15 @@ +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::hermit_base::opts(); + base.max_atomic_width = Some(128); + base.features = "+strict-align,+neon,+fp-armv8".into(); + + Target { + llvm_target: "aarch64-unknown-hermit".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/aarch64_unknown_linux_gnu.rs new file mode 100644 index 000000000..3006044d5 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_unknown_linux_gnu.rs @@ -0,0 +1,23 @@ +use crate::spec::{SanitizerSet, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "aarch64-unknown-linux-gnu".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + features: "+outline-atomics".into(), + mcount: "\u{1}_mcount".into(), + max_atomic_width: Some(128), + supported_sanitizers: SanitizerSet::ADDRESS + | SanitizerSet::CFI + | SanitizerSet::LEAK + | SanitizerSet::MEMORY + | SanitizerSet::MEMTAG + | SanitizerSet::THREAD + | SanitizerSet::HWADDRESS, + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_linux_gnu_ilp32.rs b/compiler/rustc_target/src/spec/aarch64_unknown_linux_gnu_ilp32.rs new file mode 100644 index 000000000..63023df1d --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_unknown_linux_gnu_ilp32.rs @@ -0,0 +1,17 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "aarch64-unknown-linux-gnu_ilp32".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + abi: "ilp32".into(), + features: "+outline-atomics".into(), + max_atomic_width: Some(128), + mcount: "\u{1}_mcount".into(), + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/aarch64_unknown_linux_musl.rs new file mode 100644 index 000000000..002d0dac2 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_unknown_linux_musl.rs @@ -0,0 +1,14 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_musl_base::opts(); + base.max_atomic_width = Some(128); + + Target { + llvm_target: "aarch64-unknown-linux-musl".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { mcount: "\u{1}_mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_netbsd.rs b/compiler/rustc_target/src/spec/aarch64_unknown_netbsd.rs new file mode 100644 index 000000000..703f75022 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_unknown_netbsd.rs @@ -0,0 +1,15 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "aarch64-unknown-netbsd".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + mcount: "__mcount".into(), + max_atomic_width: Some(128), + ..super::netbsd_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_none.rs b/compiler/rustc_target/src/spec/aarch64_unknown_none.rs new file mode 100644 index 000000000..d3fd7051a --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_unknown_none.rs @@ -0,0 +1,29 @@ +// Generic AArch64 target for bare-metal code - Floating point enabled +// +// Can be used in conjunction with the `target-feature` and +// `target-cpu` compiler flags to opt-in more hardware-specific +// features. +// +// For example, `-C target-cpu=cortex-a53`. + +use super::{LinkerFlavor, LldFlavor, PanicStrategy, RelocModel, Target, TargetOptions}; + +pub fn target() -> Target { + let opts = TargetOptions { + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + features: "+strict-align,+neon,+fp-armv8".into(), + relocation_model: RelocModel::Static, + disable_redzone: true, + max_atomic_width: Some(128), + panic_strategy: PanicStrategy::Abort, + ..Default::default() + }; + Target { + llvm_target: "aarch64-unknown-none".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: opts, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_none_softfloat.rs b/compiler/rustc_target/src/spec/aarch64_unknown_none_softfloat.rs new file mode 100644 index 000000000..6316abe1b --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_unknown_none_softfloat.rs @@ -0,0 +1,30 @@ +// Generic AArch64 target for bare-metal code - Floating point disabled +// +// Can be used in conjunction with the `target-feature` and +// `target-cpu` compiler flags to opt-in more hardware-specific +// features. +// +// For example, `-C target-cpu=cortex-a53`. + +use super::{LinkerFlavor, LldFlavor, PanicStrategy, RelocModel, Target, TargetOptions}; + +pub fn target() -> Target { + let opts = TargetOptions { + abi: "softfloat".into(), + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + features: "+strict-align,-neon,-fp-armv8".into(), + relocation_model: RelocModel::Static, + disable_redzone: true, + max_atomic_width: Some(128), + panic_strategy: PanicStrategy::Abort, + ..Default::default() + }; + Target { + llvm_target: "aarch64-unknown-none".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: opts, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_openbsd.rs b/compiler/rustc_target/src/spec/aarch64_unknown_openbsd.rs new file mode 100644 index 000000000..3d99040f0 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_unknown_openbsd.rs @@ -0,0 +1,11 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "aarch64-unknown-openbsd".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { max_atomic_width: Some(128), ..super::openbsd_base::opts() }, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_redox.rs b/compiler/rustc_target/src/spec/aarch64_unknown_redox.rs new file mode 100644 index 000000000..6c9be4c8e --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_unknown_redox.rs @@ -0,0 +1,14 @@ +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::redox_base::opts(); + base.max_atomic_width = Some(128); + + Target { + llvm_target: "aarch64-unknown-redox".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_uefi.rs b/compiler/rustc_target/src/spec/aarch64_unknown_uefi.rs new file mode 100644 index 000000000..162b091b2 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_unknown_uefi.rs @@ -0,0 +1,20 @@ +// This defines the aarch64 target for UEFI systems as described in the UEFI specification. See the +// uefi-base module for generic UEFI options. + +use super::uefi_msvc_base; +use crate::spec::{LinkerFlavor, Target}; + +pub fn target() -> Target { + let mut base = uefi_msvc_base::opts(); + + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Msvc, &["/machine:arm64"]); + + Target { + llvm_target: "aarch64-unknown-windows".into(), + pointer_width: 64, + data_layout: "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_uwp_windows_msvc.rs b/compiler/rustc_target/src/spec/aarch64_uwp_windows_msvc.rs new file mode 100644 index 000000000..54247fd93 --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_uwp_windows_msvc.rs @@ -0,0 +1,14 @@ +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::windows_uwp_msvc_base::opts(); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "aarch64-pc-windows-msvc".into(), + pointer_width: 64, + data_layout: "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/aarch64_wrs_vxworks.rs b/compiler/rustc_target/src/spec/aarch64_wrs_vxworks.rs new file mode 100644 index 000000000..e118553df --- /dev/null +++ b/compiler/rustc_target/src/spec/aarch64_wrs_vxworks.rs @@ -0,0 +1,11 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "aarch64-unknown-linux-gnu".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { max_atomic_width: Some(128), ..super::vxworks_base::opts() }, + } +} diff --git a/compiler/rustc_target/src/spec/abi.rs b/compiler/rustc_target/src/spec/abi.rs new file mode 100644 index 000000000..337554dc9 --- /dev/null +++ b/compiler/rustc_target/src/spec/abi.rs @@ -0,0 +1,175 @@ +use std::fmt; + +use rustc_macros::HashStable_Generic; + +#[cfg(test)] +mod tests; + +#[derive(PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, Debug)] +#[derive(HashStable_Generic, Encodable, Decodable)] +pub enum Abi { + // Some of the ABIs come first because every time we add a new ABI, we have to re-bless all the + // hashing tests. These are used in many places, so giving them stable values reduces test + // churn. The specific values are meaningless. + Rust, + C { unwind: bool }, + Cdecl { unwind: bool }, + Stdcall { unwind: bool }, + Fastcall { unwind: bool }, + Vectorcall { unwind: bool }, + Thiscall { unwind: bool }, + Aapcs { unwind: bool }, + Win64 { unwind: bool }, + SysV64 { unwind: bool }, + PtxKernel, + Msp430Interrupt, + X86Interrupt, + AmdGpuKernel, + EfiApi, + AvrInterrupt, + AvrNonBlockingInterrupt, + CCmseNonSecureCall, + Wasm, + System { unwind: bool }, + RustIntrinsic, + RustCall, + PlatformIntrinsic, + Unadjusted, + RustCold, +} + +#[derive(Copy, Clone)] +pub struct AbiData { + abi: Abi, + + /// Name of this ABI as we like it called. + name: &'static str, +} + +#[allow(non_upper_case_globals)] +const AbiDatas: &[AbiData] = &[ + AbiData { abi: Abi::Rust, name: "Rust" }, + AbiData { abi: Abi::C { unwind: false }, name: "C" }, + AbiData { abi: Abi::C { unwind: true }, name: "C-unwind" }, + AbiData { abi: Abi::Cdecl { unwind: false }, name: "cdecl" }, + AbiData { abi: Abi::Cdecl { unwind: true }, name: "cdecl-unwind" }, + AbiData { abi: Abi::Stdcall { unwind: false }, name: "stdcall" }, + AbiData { abi: Abi::Stdcall { unwind: true }, name: "stdcall-unwind" }, + AbiData { abi: Abi::Fastcall { unwind: false }, name: "fastcall" }, + AbiData { abi: Abi::Fastcall { unwind: true }, name: "fastcall-unwind" }, + AbiData { abi: Abi::Vectorcall { unwind: false }, name: "vectorcall" }, + AbiData { abi: Abi::Vectorcall { unwind: true }, name: "vectorcall-unwind" }, + AbiData { abi: Abi::Thiscall { unwind: false }, name: "thiscall" }, + AbiData { abi: Abi::Thiscall { unwind: true }, name: "thiscall-unwind" }, + AbiData { abi: Abi::Aapcs { unwind: false }, name: "aapcs" }, + AbiData { abi: Abi::Aapcs { unwind: true }, name: "aapcs-unwind" }, + AbiData { abi: Abi::Win64 { unwind: false }, name: "win64" }, + AbiData { abi: Abi::Win64 { unwind: true }, name: "win64-unwind" }, + AbiData { abi: Abi::SysV64 { unwind: false }, name: "sysv64" }, + AbiData { abi: Abi::SysV64 { unwind: true }, name: "sysv64-unwind" }, + AbiData { abi: Abi::PtxKernel, name: "ptx-kernel" }, + AbiData { abi: Abi::Msp430Interrupt, name: "msp430-interrupt" }, + AbiData { abi: Abi::X86Interrupt, name: "x86-interrupt" }, + AbiData { abi: Abi::AmdGpuKernel, name: "amdgpu-kernel" }, + AbiData { abi: Abi::EfiApi, name: "efiapi" }, + AbiData { abi: Abi::AvrInterrupt, name: "avr-interrupt" }, + AbiData { abi: Abi::AvrNonBlockingInterrupt, name: "avr-non-blocking-interrupt" }, + AbiData { abi: Abi::CCmseNonSecureCall, name: "C-cmse-nonsecure-call" }, + AbiData { abi: Abi::Wasm, name: "wasm" }, + AbiData { abi: Abi::System { unwind: false }, name: "system" }, + AbiData { abi: Abi::System { unwind: true }, name: "system-unwind" }, + AbiData { abi: Abi::RustIntrinsic, name: "rust-intrinsic" }, + AbiData { abi: Abi::RustCall, name: "rust-call" }, + AbiData { abi: Abi::PlatformIntrinsic, name: "platform-intrinsic" }, + AbiData { abi: Abi::Unadjusted, name: "unadjusted" }, + AbiData { abi: Abi::RustCold, name: "rust-cold" }, +]; + +/// Returns the ABI with the given name (if any). +pub fn lookup(name: &str) -> Option<Abi> { + AbiDatas.iter().find(|abi_data| name == abi_data.name).map(|&x| x.abi) +} + +pub fn all_names() -> Vec<&'static str> { + AbiDatas.iter().map(|d| d.name).collect() +} + +impl Abi { + /// Default ABI chosen for `extern fn` declarations without an explicit ABI. + pub const FALLBACK: Abi = Abi::C { unwind: false }; + + #[inline] + pub fn index(self) -> usize { + // N.B., this ordering MUST match the AbiDatas array above. + // (This is ensured by the test indices_are_correct().) + use Abi::*; + let i = match self { + // Cross-platform ABIs + Rust => 0, + C { unwind: false } => 1, + C { unwind: true } => 2, + // Platform-specific ABIs + Cdecl { unwind: false } => 3, + Cdecl { unwind: true } => 4, + Stdcall { unwind: false } => 5, + Stdcall { unwind: true } => 6, + Fastcall { unwind: false } => 7, + Fastcall { unwind: true } => 8, + Vectorcall { unwind: false } => 9, + Vectorcall { unwind: true } => 10, + Thiscall { unwind: false } => 11, + Thiscall { unwind: true } => 12, + Aapcs { unwind: false } => 13, + Aapcs { unwind: true } => 14, + Win64 { unwind: false } => 15, + Win64 { unwind: true } => 16, + SysV64 { unwind: false } => 17, + SysV64 { unwind: true } => 18, + PtxKernel => 19, + Msp430Interrupt => 20, + X86Interrupt => 21, + AmdGpuKernel => 22, + EfiApi => 23, + AvrInterrupt => 24, + AvrNonBlockingInterrupt => 25, + CCmseNonSecureCall => 26, + Wasm => 27, + // Cross-platform ABIs + System { unwind: false } => 28, + System { unwind: true } => 29, + RustIntrinsic => 30, + RustCall => 31, + PlatformIntrinsic => 32, + Unadjusted => 33, + RustCold => 34, + }; + debug_assert!( + AbiDatas + .iter() + .enumerate() + .find(|(_, AbiData { abi, .. })| *abi == self) + .map(|(index, _)| index) + .expect("abi variant has associated data") + == i, + "Abi index did not match `AbiDatas` ordering" + ); + i + } + + #[inline] + pub fn data(self) -> &'static AbiData { + &AbiDatas[self.index()] + } + + pub fn name(self) -> &'static str { + self.data().name + } +} + +impl fmt::Display for Abi { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + match self { + abi => write!(f, "\"{}\"", abi.name()), + } + } +} diff --git a/compiler/rustc_target/src/spec/abi/tests.rs b/compiler/rustc_target/src/spec/abi/tests.rs new file mode 100644 index 000000000..8bea5e5ef --- /dev/null +++ b/compiler/rustc_target/src/spec/abi/tests.rs @@ -0,0 +1,27 @@ +use super::*; + +#[allow(non_snake_case)] +#[test] +fn lookup_Rust() { + let abi = lookup("Rust"); + assert!(abi.is_some() && abi.unwrap().data().name == "Rust"); +} + +#[test] +fn lookup_cdecl() { + let abi = lookup("cdecl"); + assert!(abi.is_some() && abi.unwrap().data().name == "cdecl"); +} + +#[test] +fn lookup_baz() { + let abi = lookup("baz"); + assert!(abi.is_none()); +} + +#[test] +fn indices_are_correct() { + for (i, abi_data) in AbiDatas.iter().enumerate() { + assert_eq!(i, abi_data.abi.index()); + } +} diff --git a/compiler/rustc_target/src/spec/android_base.rs b/compiler/rustc_target/src/spec/android_base.rs new file mode 100644 index 000000000..dc06597db --- /dev/null +++ b/compiler/rustc_target/src/spec/android_base.rs @@ -0,0 +1,15 @@ +use crate::spec::TargetOptions; + +pub fn opts() -> TargetOptions { + let mut base = super::linux_base::opts(); + base.os = "android".into(); + base.default_dwarf_version = 2; + base.position_independent_executables = true; + base.has_thread_local = false; + // This is for backward compatibility, see https://github.com/rust-lang/rust/issues/49867 + // for context. (At that time, there was no `-C force-unwind-tables`, so the only solution + // was to always emit `uwtable`). + base.default_uwtable = true; + base.crt_static_respected = false; + base +} diff --git a/compiler/rustc_target/src/spec/apple_base.rs b/compiler/rustc_target/src/spec/apple_base.rs new file mode 100644 index 000000000..15e4fb9be --- /dev/null +++ b/compiler/rustc_target/src/spec/apple_base.rs @@ -0,0 +1,143 @@ +use std::{borrow::Cow, env}; + +use crate::spec::{cvs, FramePointer, LldFlavor, SplitDebuginfo, TargetOptions}; + +pub fn opts(os: &'static str) -> TargetOptions { + // ELF TLS is only available in macOS 10.7+. If you try to compile for 10.6 + // either the linker will complain if it is used or the binary will end up + // segfaulting at runtime when run on 10.6. Rust by default supports macOS + // 10.7+, but there is a standard environment variable, + // MACOSX_DEPLOYMENT_TARGET, which is used to signal targeting older + // versions of macOS. For example compiling on 10.10 with + // MACOSX_DEPLOYMENT_TARGET set to 10.6 will cause the linker to generate + // warnings about the usage of ELF TLS. + // + // Here we detect what version is being requested, defaulting to 10.7. ELF + // TLS is flagged as enabled if it looks to be supported. The architecture + // only matters for default deployment target which is 11.0 for ARM64 and + // 10.7 for everything else. + let has_thread_local = macos_deployment_target("x86_64") >= (10, 7); + + TargetOptions { + os: os.into(), + vendor: "apple".into(), + // macOS has -dead_strip, which doesn't rely on function_sections + function_sections: false, + dynamic_linking: true, + linker_is_gnu: false, + families: cvs!["unix"], + is_like_osx: true, + default_dwarf_version: 2, + frame_pointer: FramePointer::Always, + has_rpath: true, + dll_suffix: ".dylib".into(), + archive_format: "darwin".into(), + has_thread_local, + abi_return_struct_as_int: true, + emit_debug_gdb_scripts: false, + eh_frame_header: false, + lld_flavor: LldFlavor::Ld64, + + // The historical default for macOS targets is to run `dsymutil` which + // generates a packed version of debuginfo split from the main file. + split_debuginfo: SplitDebuginfo::Packed, + + // This environment variable is pretty magical but is intended for + // producing deterministic builds. This was first discovered to be used + // by the `ar` tool as a way to control whether or not mtime entries in + // the archive headers were set to zero or not. It appears that + // eventually the linker got updated to do the same thing and now reads + // this environment variable too in recent versions. + // + // For some more info see the commentary on #47086 + link_env: Cow::Borrowed(&[(Cow::Borrowed("ZERO_AR_DATE"), Cow::Borrowed("1"))]), + + ..Default::default() + } +} + +fn deployment_target(var_name: &str) -> Option<(u32, u32)> { + let deployment_target = env::var(var_name).ok(); + deployment_target + .as_ref() + .and_then(|s| s.split_once('.')) + .and_then(|(a, b)| a.parse::<u32>().and_then(|a| b.parse::<u32>().map(|b| (a, b))).ok()) +} + +fn macos_default_deployment_target(arch: &str) -> (u32, u32) { + if arch == "arm64" { (11, 0) } else { (10, 7) } +} + +fn macos_deployment_target(arch: &str) -> (u32, u32) { + deployment_target("MACOSX_DEPLOYMENT_TARGET") + .unwrap_or_else(|| macos_default_deployment_target(arch)) +} + +pub fn macos_llvm_target(arch: &str) -> String { + let (major, minor) = macos_deployment_target(arch); + format!("{}-apple-macosx{}.{}.0", arch, major, minor) +} + +pub fn macos_link_env_remove() -> Vec<Cow<'static, str>> { + let mut env_remove = Vec::with_capacity(2); + // Remove the `SDKROOT` environment variable if it's clearly set for the wrong platform, which + // may occur when we're linking a custom build script while targeting iOS for example. + if let Ok(sdkroot) = env::var("SDKROOT") { + if sdkroot.contains("iPhoneOS.platform") || sdkroot.contains("iPhoneSimulator.platform") { + env_remove.push("SDKROOT".into()) + } + } + // Additionally, `IPHONEOS_DEPLOYMENT_TARGET` must not be set when using the Xcode linker at + // "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld", + // although this is apparently ignored when using the linker at "/usr/bin/ld". + env_remove.push("IPHONEOS_DEPLOYMENT_TARGET".into()); + env_remove +} + +fn ios_deployment_target() -> (u32, u32) { + deployment_target("IPHONEOS_DEPLOYMENT_TARGET").unwrap_or((7, 0)) +} + +pub fn ios_llvm_target(arch: &str) -> String { + // Modern iOS tooling extracts information about deployment target + // from LC_BUILD_VERSION. This load command will only be emitted when + // we build with a version specific `llvm_target`, with the version + // set high enough. Luckily one LC_BUILD_VERSION is enough, for Xcode + // to pick it up (since std and core are still built with the fallback + // of version 7.0 and hence emit the old LC_IPHONE_MIN_VERSION). + let (major, minor) = ios_deployment_target(); + format!("{}-apple-ios{}.{}.0", arch, major, minor) +} + +pub fn ios_lld_platform_version() -> String { + let (major, minor) = ios_deployment_target(); + format!("{}.{}", major, minor) +} + +pub fn ios_sim_llvm_target(arch: &str) -> String { + let (major, minor) = ios_deployment_target(); + format!("{}-apple-ios{}.{}.0-simulator", arch, major, minor) +} + +fn tvos_deployment_target() -> (u32, u32) { + deployment_target("TVOS_DEPLOYMENT_TARGET").unwrap_or((7, 0)) +} + +pub fn tvos_lld_platform_version() -> String { + let (major, minor) = tvos_deployment_target(); + format!("{}.{}", major, minor) +} + +fn watchos_deployment_target() -> (u32, u32) { + deployment_target("WATCHOS_DEPLOYMENT_TARGET").unwrap_or((5, 0)) +} + +pub fn watchos_lld_platform_version() -> String { + let (major, minor) = watchos_deployment_target(); + format!("{}.{}", major, minor) +} + +pub fn watchos_sim_llvm_target(arch: &str) -> String { + let (major, minor) = watchos_deployment_target(); + format!("{}-apple-watchos{}.{}.0-simulator", arch, major, minor) +} diff --git a/compiler/rustc_target/src/spec/apple_sdk_base.rs b/compiler/rustc_target/src/spec/apple_sdk_base.rs new file mode 100644 index 000000000..d77558f0f --- /dev/null +++ b/compiler/rustc_target/src/spec/apple_sdk_base.rs @@ -0,0 +1,113 @@ +use crate::spec::{cvs, LinkArgs, LinkerFlavor, LldFlavor, TargetOptions}; +use std::borrow::Cow; + +use Arch::*; +#[allow(non_camel_case_types)] +#[derive(Copy, Clone)] +pub enum Arch { + Armv7, + Armv7k, + Armv7s, + Arm64, + Arm64_32, + I386, + X86_64, + X86_64_macabi, + Arm64_macabi, + Arm64_sim, +} + +fn target_arch_name(arch: Arch) -> &'static str { + match arch { + Armv7 => "armv7", + Armv7k => "armv7k", + Armv7s => "armv7s", + Arm64 | Arm64_macabi | Arm64_sim => "arm64", + Arm64_32 => "arm64_32", + I386 => "i386", + X86_64 | X86_64_macabi => "x86_64", + } +} + +fn target_abi(arch: Arch) -> &'static str { + match arch { + Armv7 | Armv7k | Armv7s | Arm64 | Arm64_32 | I386 | X86_64 => "", + X86_64_macabi | Arm64_macabi => "macabi", + Arm64_sim => "sim", + } +} + +fn target_cpu(arch: Arch) -> &'static str { + match arch { + Armv7 => "cortex-a8", // iOS7 is supported on iPhone 4 and higher + Armv7k => "cortex-a8", + Armv7s => "cortex-a9", + Arm64 => "apple-a7", + Arm64_32 => "apple-s4", + I386 => "yonah", + X86_64 => "core2", + X86_64_macabi => "core2", + Arm64_macabi => "apple-a12", + Arm64_sim => "apple-a12", + } +} + +fn link_env_remove(arch: Arch) -> Cow<'static, [Cow<'static, str>]> { + match arch { + Armv7 | Armv7k | Armv7s | Arm64 | Arm64_32 | I386 | X86_64 | Arm64_sim => { + cvs!["MACOSX_DEPLOYMENT_TARGET"] + } + X86_64_macabi | Arm64_macabi => cvs!["IPHONEOS_DEPLOYMENT_TARGET"], + } +} + +fn pre_link_args(os: &'static str, arch: Arch) -> LinkArgs { + let mut args = LinkArgs::new(); + + let target_abi = target_abi(arch); + + let platform_name = match target_abi { + "sim" => format!("{}-simulator", os), + "macabi" => "mac-catalyst".to_string(), + _ => os.to_string(), + }; + + let platform_version = match os.as_ref() { + "ios" => super::apple_base::ios_lld_platform_version(), + "tvos" => super::apple_base::tvos_lld_platform_version(), + "watchos" => super::apple_base::watchos_lld_platform_version(), + _ => unreachable!(), + }; + + let arch_str = target_arch_name(arch); + + if target_abi != "macabi" { + args.insert(LinkerFlavor::Gcc, vec!["-arch".into(), arch_str.into()]); + } + + args.insert( + LinkerFlavor::Lld(LldFlavor::Ld64), + vec![ + "-arch".into(), + arch_str.into(), + "-platform_version".into(), + platform_name.into(), + platform_version.clone().into(), + platform_version.into(), + ], + ); + + args +} + +pub fn opts(os: &'static str, arch: Arch) -> TargetOptions { + TargetOptions { + abi: target_abi(arch).into(), + cpu: target_cpu(arch).into(), + dynamic_linking: false, + pre_link_args: pre_link_args(os, arch), + link_env_remove: link_env_remove(arch), + has_thread_local: false, + ..super::apple_base::opts(os) + } +} diff --git a/compiler/rustc_target/src/spec/arm64_32_apple_watchos.rs b/compiler/rustc_target/src/spec/arm64_32_apple_watchos.rs new file mode 100644 index 000000000..7b23fe1c4 --- /dev/null +++ b/compiler/rustc_target/src/spec/arm64_32_apple_watchos.rs @@ -0,0 +1,28 @@ +use super::apple_sdk_base::{opts, Arch}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + let base = opts("watchos", Arch::Arm64_32); + Target { + llvm_target: "arm64_32-apple-watchos".into(), + pointer_width: 32, + data_layout: "e-m:o-p:32:32-i64:64-i128:128-n32:64-S128".into(), + arch: "aarch64".into(), + options: TargetOptions { + features: "+neon,+fp-armv8,+apple-a7".into(), + max_atomic_width: Some(64), + forces_embed_bitcode: true, + // These arguments are not actually invoked - they just have + // to look right to pass App Store validation. + bitcode_llvm_cmdline: "-triple\0\ + arm64_32-apple-watchos5.0.0\0\ + -emit-obj\0\ + -disable-llvm-passes\0\ + -target-abi\0\ + darwinpcs\0\ + -Os\0" + .into(), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/arm_linux_androideabi.rs b/compiler/rustc_target/src/spec/arm_linux_androideabi.rs new file mode 100644 index 000000000..bbf1fa315 --- /dev/null +++ b/compiler/rustc_target/src/spec/arm_linux_androideabi.rs @@ -0,0 +1,18 @@ +use crate::spec::{SanitizerSet, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "arm-linux-androideabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabi".into(), + // https://developer.android.com/ndk/guides/abis.html#armeabi + features: "+strict-align,+v5te".into(), + supported_sanitizers: SanitizerSet::ADDRESS, + max_atomic_width: Some(32), + ..super::android_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/arm_unknown_linux_gnueabi.rs b/compiler/rustc_target/src/spec/arm_unknown_linux_gnueabi.rs new file mode 100644 index 000000000..c0f1827ad --- /dev/null +++ b/compiler/rustc_target/src/spec/arm_unknown_linux_gnueabi.rs @@ -0,0 +1,17 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "arm-unknown-linux-gnueabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabi".into(), + features: "+strict-align,+v6".into(), + max_atomic_width: Some(64), + mcount: "\u{1}__gnu_mcount_nc".into(), + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/arm_unknown_linux_gnueabihf.rs b/compiler/rustc_target/src/spec/arm_unknown_linux_gnueabihf.rs new file mode 100644 index 000000000..79b8958c2 --- /dev/null +++ b/compiler/rustc_target/src/spec/arm_unknown_linux_gnueabihf.rs @@ -0,0 +1,17 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "arm-unknown-linux-gnueabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabihf".into(), + features: "+strict-align,+v6,+vfp2,-d32".into(), + max_atomic_width: Some(64), + mcount: "\u{1}__gnu_mcount_nc".into(), + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/arm_unknown_linux_musleabi.rs b/compiler/rustc_target/src/spec/arm_unknown_linux_musleabi.rs new file mode 100644 index 000000000..3ef441d6a --- /dev/null +++ b/compiler/rustc_target/src/spec/arm_unknown_linux_musleabi.rs @@ -0,0 +1,22 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + // It's important we use "gnueabi" and not "musleabi" here. LLVM uses it + // to determine the calling convention and float ABI, and it doesn't + // support the "musleabi" value. + llvm_target: "arm-unknown-linux-gnueabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabi".into(), + // Most of these settings are copied from the arm_unknown_linux_gnueabi + // target. + features: "+strict-align,+v6".into(), + max_atomic_width: Some(64), + mcount: "\u{1}mcount".into(), + ..super::linux_musl_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/arm_unknown_linux_musleabihf.rs b/compiler/rustc_target/src/spec/arm_unknown_linux_musleabihf.rs new file mode 100644 index 000000000..eb6660d4c --- /dev/null +++ b/compiler/rustc_target/src/spec/arm_unknown_linux_musleabihf.rs @@ -0,0 +1,22 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + // It's important we use "gnueabihf" and not "musleabihf" here. LLVM + // uses it to determine the calling convention and float ABI, and it + // doesn't support the "musleabihf" value. + llvm_target: "arm-unknown-linux-gnueabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabihf".into(), + // Most of these settings are copied from the arm_unknown_linux_gnueabihf + // target. + features: "+strict-align,+v6,+vfp2,-d32".into(), + max_atomic_width: Some(64), + mcount: "\u{1}mcount".into(), + ..super::linux_musl_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armebv7r_none_eabi.rs b/compiler/rustc_target/src/spec/armebv7r_none_eabi.rs new file mode 100644 index 000000000..511693abe --- /dev/null +++ b/compiler/rustc_target/src/spec/armebv7r_none_eabi.rs @@ -0,0 +1,27 @@ +// Targets the Big endian Cortex-R4/R5 processor (ARMv7-R) + +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, LldFlavor, PanicStrategy, RelocModel}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "armebv7r-unknown-none-eabi".into(), + pointer_width: 32, + data_layout: "E-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabi".into(), + endian: Endian::Big, + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + relocation_model: RelocModel::Static, + panic_strategy: PanicStrategy::Abort, + max_atomic_width: Some(32), + emit_debug_gdb_scripts: false, + // GCC and Clang default to 8 for arm-none here + c_enum_min_bits: 8, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armebv7r_none_eabihf.rs b/compiler/rustc_target/src/spec/armebv7r_none_eabihf.rs new file mode 100644 index 000000000..5df4a0a15 --- /dev/null +++ b/compiler/rustc_target/src/spec/armebv7r_none_eabihf.rs @@ -0,0 +1,28 @@ +// Targets the Cortex-R4F/R5F processor (ARMv7-R) + +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, LldFlavor, PanicStrategy, RelocModel}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "armebv7r-unknown-none-eabihf".into(), + pointer_width: 32, + data_layout: "E-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabihf".into(), + endian: Endian::Big, + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + relocation_model: RelocModel::Static, + panic_strategy: PanicStrategy::Abort, + features: "+vfp3,-d32,-fp16".into(), + max_atomic_width: Some(32), + emit_debug_gdb_scripts: false, + // GCC and Clang default to 8 for arm-none here + c_enum_min_bits: 8, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv4t_unknown_linux_gnueabi.rs b/compiler/rustc_target/src/spec/armv4t_unknown_linux_gnueabi.rs new file mode 100644 index 000000000..1de63a920 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv4t_unknown_linux_gnueabi.rs @@ -0,0 +1,19 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "armv4t-unknown-linux-gnueabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabi".into(), + features: "+soft-float,+strict-align".into(), + // Atomic operations provided by compiler-builtins + max_atomic_width: Some(32), + mcount: "\u{1}__gnu_mcount_nc".into(), + has_thumb_interworking: true, + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv5te_unknown_linux_gnueabi.rs b/compiler/rustc_target/src/spec/armv5te_unknown_linux_gnueabi.rs new file mode 100644 index 000000000..b94056310 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv5te_unknown_linux_gnueabi.rs @@ -0,0 +1,19 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "armv5te-unknown-linux-gnueabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabi".into(), + features: "+soft-float,+strict-align".into(), + // Atomic operations provided by compiler-builtins + max_atomic_width: Some(32), + mcount: "\u{1}__gnu_mcount_nc".into(), + has_thumb_interworking: true, + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv5te_unknown_linux_musleabi.rs b/compiler/rustc_target/src/spec/armv5te_unknown_linux_musleabi.rs new file mode 100644 index 000000000..2530971b5 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv5te_unknown_linux_musleabi.rs @@ -0,0 +1,23 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + // FIXME: this comment below does not seem applicable? + // It's important we use "gnueabihf" and not "musleabihf" here. LLVM + // uses it to determine the calling convention and float ABI, and LLVM + // doesn't support the "musleabihf" value. + llvm_target: "armv5te-unknown-linux-gnueabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabi".into(), + features: "+soft-float,+strict-align".into(), + // Atomic operations provided by compiler-builtins + max_atomic_width: Some(32), + mcount: "\u{1}mcount".into(), + has_thumb_interworking: true, + ..super::linux_musl_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv5te_unknown_linux_uclibceabi.rs b/compiler/rustc_target/src/spec/armv5te_unknown_linux_uclibceabi.rs new file mode 100644 index 000000000..a51be10a3 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv5te_unknown_linux_uclibceabi.rs @@ -0,0 +1,19 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "armv5te-unknown-linux-uclibcgnueabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabi".into(), + features: "+soft-float,+strict-align".into(), + // Atomic operations provided by compiler-builtins + max_atomic_width: Some(32), + mcount: "\u{1}__gnu_mcount_nc".into(), + has_thumb_interworking: true, + ..super::linux_uclibc_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv6_unknown_freebsd.rs b/compiler/rustc_target/src/spec/armv6_unknown_freebsd.rs new file mode 100644 index 000000000..b7cfccc8b --- /dev/null +++ b/compiler/rustc_target/src/spec/armv6_unknown_freebsd.rs @@ -0,0 +1,19 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "armv6-unknown-freebsd-gnueabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabihf".into(), + // FIXME: change env to "gnu" when cfg_target_abi becomes stable + env: "gnueabihf".into(), + features: "+v6,+vfp2,-d32".into(), + max_atomic_width: Some(64), + mcount: "\u{1}__gnu_mcount_nc".into(), + ..super::freebsd_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv6_unknown_netbsd_eabihf.rs b/compiler/rustc_target/src/spec/armv6_unknown_netbsd_eabihf.rs new file mode 100644 index 000000000..6e26f686f --- /dev/null +++ b/compiler/rustc_target/src/spec/armv6_unknown_netbsd_eabihf.rs @@ -0,0 +1,19 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "armv6-unknown-netbsdelf-eabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabihf".into(), + // FIXME: remove env when cfg_target_abi becomes stable + env: "eabihf".into(), + features: "+v6,+vfp2,-d32".into(), + max_atomic_width: Some(64), + mcount: "__mcount".into(), + ..super::netbsd_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv6k_nintendo_3ds.rs b/compiler/rustc_target/src/spec/armv6k_nintendo_3ds.rs new file mode 100644 index 000000000..1bba39393 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv6k_nintendo_3ds.rs @@ -0,0 +1,38 @@ +use crate::spec::{cvs, LinkerFlavor, RelocModel, Target, TargetOptions}; + +/// A base target for Nintendo 3DS devices using the devkitARM toolchain. +/// +/// Requires the devkitARM toolchain for 3DS targets on the host system. + +pub fn target() -> Target { + let pre_link_args = TargetOptions::link_args( + LinkerFlavor::Gcc, + &["-specs=3dsx.specs", "-mtune=mpcore", "-mfloat-abi=hard", "-mtp=soft"], + ); + + Target { + llvm_target: "armv6k-none-eabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + options: TargetOptions { + os: "horizon".into(), + env: "newlib".into(), + vendor: "nintendo".into(), + abi: "eabihf".into(), + linker_flavor: LinkerFlavor::Gcc, + cpu: "mpcore".into(), + families: cvs!["unix"], + linker: Some("arm-none-eabi-gcc".into()), + relocation_model: RelocModel::Static, + features: "+vfp2".into(), + pre_link_args, + exe_suffix: ".elf".into(), + no_default_libraries: false, + // There are some issues in debug builds with this enabled in certain programs. + has_thread_local: false, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7_apple_ios.rs b/compiler/rustc_target/src/spec/armv7_apple_ios.rs new file mode 100644 index 000000000..57fd74a36 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7_apple_ios.rs @@ -0,0 +1,18 @@ +use super::apple_sdk_base::{opts, Arch}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + let llvm_target = super::apple_base::ios_llvm_target("armv7"); + + Target { + llvm_target: llvm_target.into(), + pointer_width: 32, + data_layout: "e-m:o-p:32:32-Fi8-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32".into(), + arch: "arm".into(), + options: TargetOptions { + features: "+v7,+vfp3,+neon".into(), + max_atomic_width: Some(64), + ..opts("ios", Arch::Armv7) + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7_linux_androideabi.rs b/compiler/rustc_target/src/spec/armv7_linux_androideabi.rs new file mode 100644 index 000000000..38c117a49 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7_linux_androideabi.rs @@ -0,0 +1,27 @@ +use crate::spec::{LinkerFlavor, SanitizerSet, Target, TargetOptions}; + +// This target if is for the baseline of the Android v7a ABI +// in thumb mode. It's named armv7-* instead of thumbv7-* +// for historical reasons. See the thumbv7neon variant for +// enabling NEON. + +// See https://developer.android.com/ndk/guides/abis.html#v7a +// for target ABI requirements. + +pub fn target() -> Target { + let mut base = super::android_base::opts(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-march=armv7-a"]); + Target { + llvm_target: "armv7-none-linux-android".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabi".into(), + features: "+v7,+thumb-mode,+thumb2,+vfp3,-d32,-neon".into(), + supported_sanitizers: SanitizerSet::ADDRESS, + max_atomic_width: Some(64), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7_unknown_freebsd.rs b/compiler/rustc_target/src/spec/armv7_unknown_freebsd.rs new file mode 100644 index 000000000..bc37b62de --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7_unknown_freebsd.rs @@ -0,0 +1,19 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "armv7-unknown-freebsd-gnueabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabihf".into(), + // FIXME: change env to "gnu" when cfg_target_abi becomes stable + env: "gnueabihf".into(), + features: "+v7,+vfp3,-d32,+thumb2,-neon".into(), + max_atomic_width: Some(64), + mcount: "\u{1}__gnu_mcount_nc".into(), + ..super::freebsd_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7_unknown_linux_gnueabi.rs b/compiler/rustc_target/src/spec/armv7_unknown_linux_gnueabi.rs new file mode 100644 index 000000000..903042d7e --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7_unknown_linux_gnueabi.rs @@ -0,0 +1,20 @@ +use crate::spec::{Target, TargetOptions}; + +// This target is for glibc Linux on ARMv7 without thumb-mode, NEON or +// hardfloat. + +pub fn target() -> Target { + Target { + llvm_target: "armv7-unknown-linux-gnueabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabi".into(), + features: "+v7,+thumb2,+soft-float,-neon".into(), + max_atomic_width: Some(64), + mcount: "\u{1}__gnu_mcount_nc".into(), + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7_unknown_linux_gnueabihf.rs b/compiler/rustc_target/src/spec/armv7_unknown_linux_gnueabihf.rs new file mode 100644 index 000000000..e39ea49a0 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7_unknown_linux_gnueabihf.rs @@ -0,0 +1,21 @@ +use crate::spec::{Target, TargetOptions}; + +// This target is for glibc Linux on ARMv7 without NEON or +// thumb-mode. See the thumbv7neon variant for enabling both. + +pub fn target() -> Target { + Target { + llvm_target: "armv7-unknown-linux-gnueabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabihf".into(), + // Info about features at https://wiki.debian.org/ArmHardFloatPort + features: "+v7,+vfp3,-d32,+thumb2,-neon".into(), + max_atomic_width: Some(64), + mcount: "\u{1}__gnu_mcount_nc".into(), + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7_unknown_linux_musleabi.rs b/compiler/rustc_target/src/spec/armv7_unknown_linux_musleabi.rs new file mode 100644 index 000000000..7dae85773 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7_unknown_linux_musleabi.rs @@ -0,0 +1,26 @@ +use crate::spec::{Target, TargetOptions}; + +// This target is for musl Linux on ARMv7 without thumb-mode, NEON or +// hardfloat. + +pub fn target() -> Target { + // Most of these settings are copied from the armv7_unknown_linux_gnueabi + // target. + Target { + // It's important we use "gnueabi" and not "musleabi" here. LLVM uses it + // to determine the calling convention and float ABI, and it doesn't + // support the "musleabi" value. + llvm_target: "armv7-unknown-linux-gnueabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + options: TargetOptions { + abi: "eabi".into(), + features: "+v7,+thumb2,+soft-float,-neon".into(), + max_atomic_width: Some(64), + mcount: "\u{1}mcount".into(), + ..super::linux_musl_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7_unknown_linux_musleabihf.rs b/compiler/rustc_target/src/spec/armv7_unknown_linux_musleabihf.rs new file mode 100644 index 000000000..ba83964bf --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7_unknown_linux_musleabihf.rs @@ -0,0 +1,25 @@ +use crate::spec::{Target, TargetOptions}; + +// This target is for musl Linux on ARMv7 without thumb-mode or NEON. + +pub fn target() -> Target { + Target { + // It's important we use "gnueabihf" and not "musleabihf" here. LLVM + // uses it to determine the calling convention and float ABI, and LLVM + // doesn't support the "musleabihf" value. + llvm_target: "armv7-unknown-linux-gnueabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + // Most of these settings are copied from the armv7_unknown_linux_gnueabihf + // target. + options: TargetOptions { + abi: "eabihf".into(), + features: "+v7,+vfp3,-d32,+thumb2,-neon".into(), + max_atomic_width: Some(64), + mcount: "\u{1}mcount".into(), + ..super::linux_musl_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7_unknown_linux_uclibceabi.rs b/compiler/rustc_target/src/spec/armv7_unknown_linux_uclibceabi.rs new file mode 100644 index 000000000..171f67070 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7_unknown_linux_uclibceabi.rs @@ -0,0 +1,23 @@ +use crate::spec::{Target, TargetOptions}; + +// This target is for uclibc Linux on ARMv7 without NEON, +// thumb-mode or hardfloat. + +pub fn target() -> Target { + let base = super::linux_uclibc_base::opts(); + Target { + llvm_target: "armv7-unknown-linux-gnueabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + options: TargetOptions { + features: "+v7,+thumb2,+soft-float,-neon".into(), + cpu: "generic".into(), + max_atomic_width: Some(64), + mcount: "_mcount".into(), + abi: "eabi".into(), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7_unknown_linux_uclibceabihf.rs b/compiler/rustc_target/src/spec/armv7_unknown_linux_uclibceabihf.rs new file mode 100644 index 000000000..d3e95a657 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7_unknown_linux_uclibceabihf.rs @@ -0,0 +1,24 @@ +use crate::spec::{Target, TargetOptions}; + +// This target is for uclibc Linux on ARMv7 without NEON or +// thumb-mode. See the thumbv7neon variant for enabling both. + +pub fn target() -> Target { + let base = super::linux_uclibc_base::opts(); + Target { + llvm_target: "armv7-unknown-linux-gnueabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + options: TargetOptions { + // Info about features at https://wiki.debian.org/ArmHardFloatPort + features: "+v7,+vfp3,-d32,+thumb2,-neon".into(), + cpu: "generic".into(), + max_atomic_width: Some(64), + mcount: "_mcount".into(), + abi: "eabihf".into(), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7_unknown_netbsd_eabihf.rs b/compiler/rustc_target/src/spec/armv7_unknown_netbsd_eabihf.rs new file mode 100644 index 000000000..c89ae2483 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7_unknown_netbsd_eabihf.rs @@ -0,0 +1,19 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "armv7-unknown-netbsdelf-eabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabihf".into(), + // FIXME: remove env when cfg_target_abi becomes stable + env: "eabihf".into(), + features: "+v7,+vfp3,-d32,+thumb2,-neon".into(), + max_atomic_width: Some(64), + mcount: "__mcount".into(), + ..super::netbsd_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7_wrs_vxworks_eabihf.rs b/compiler/rustc_target/src/spec/armv7_wrs_vxworks_eabihf.rs new file mode 100644 index 000000000..c1ab90172 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7_wrs_vxworks_eabihf.rs @@ -0,0 +1,17 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "armv7-unknown-linux-gnueabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabihf".into(), + // Info about features at https://wiki.debian.org/ArmHardFloatPort + features: "+v7,+vfp3,-d32,+thumb2,-neon".into(), + max_atomic_width: Some(64), + ..super::vxworks_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7a_kmc_solid_asp3_eabi.rs b/compiler/rustc_target/src/spec/armv7a_kmc_solid_asp3_eabi.rs new file mode 100644 index 000000000..b49dc650b --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7a_kmc_solid_asp3_eabi.rs @@ -0,0 +1,19 @@ +use super::{RelocModel, Target, TargetOptions}; + +pub fn target() -> Target { + let base = super::solid_base::opts("asp3"); + Target { + llvm_target: "armv7a-none-eabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + linker: Some("arm-kmc-eabi-gcc".into()), + features: "+v7,+soft-float,+thumb2,-neon".into(), + relocation_model: RelocModel::Static, + disable_redzone: true, + max_atomic_width: Some(64), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7a_kmc_solid_asp3_eabihf.rs b/compiler/rustc_target/src/spec/armv7a_kmc_solid_asp3_eabihf.rs new file mode 100644 index 000000000..7d30238e8 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7a_kmc_solid_asp3_eabihf.rs @@ -0,0 +1,19 @@ +use super::{RelocModel, Target, TargetOptions}; + +pub fn target() -> Target { + let base = super::solid_base::opts("asp3"); + Target { + llvm_target: "armv7a-none-eabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + linker: Some("arm-kmc-eabi-gcc".into()), + features: "+v7,+vfp3,-d32,+thumb2,-neon".into(), + relocation_model: RelocModel::Static, + disable_redzone: true, + max_atomic_width: Some(64), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7a_none_eabi.rs b/compiler/rustc_target/src/spec/armv7a_none_eabi.rs new file mode 100644 index 000000000..cb5cbe158 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7a_none_eabi.rs @@ -0,0 +1,40 @@ +// Generic ARMv7-A target for bare-metal code - floating point disabled +// +// This is basically the `armv7-unknown-linux-gnueabi` target with some changes +// (listed below) to bring it closer to the bare-metal `thumb` & `aarch64` +// targets: +// +// - `TargetOptions.features`: added `+strict-align`. rationale: unaligned +// memory access is disabled on boot on these cores +// - linker changed to LLD. rationale: C is not strictly needed to build +// bare-metal binaries (the `gcc` linker has the advantage that it knows where C +// libraries and crt*.o are but it's not much of an advantage here); LLD is also +// faster +// - `panic_strategy` set to `abort`. rationale: matches `thumb` targets +// - `relocation-model` set to `static`; also no PIE, no relro and no dynamic +// linking. rationale: matches `thumb` targets + +use super::{LinkerFlavor, LldFlavor, PanicStrategy, RelocModel, Target, TargetOptions}; + +pub fn target() -> Target { + let opts = TargetOptions { + abi: "eabi".into(), + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + features: "+v7,+thumb2,+soft-float,-neon,+strict-align".into(), + relocation_model: RelocModel::Static, + disable_redzone: true, + max_atomic_width: Some(64), + panic_strategy: PanicStrategy::Abort, + emit_debug_gdb_scripts: false, + c_enum_min_bits: 8, + ..Default::default() + }; + Target { + llvm_target: "armv7a-none-eabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: opts, + } +} diff --git a/compiler/rustc_target/src/spec/armv7a_none_eabihf.rs b/compiler/rustc_target/src/spec/armv7a_none_eabihf.rs new file mode 100644 index 000000000..fb5dd2e75 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7a_none_eabihf.rs @@ -0,0 +1,32 @@ +// Generic ARMv7-A target for bare-metal code - floating point enabled (assumes +// FPU is present and emits FPU instructions) +// +// This is basically the `armv7-unknown-linux-gnueabihf` target with some +// changes (list in `armv7a_none_eabi.rs`) to bring it closer to the bare-metal +// `thumb` & `aarch64` targets. + +use super::{LinkerFlavor, LldFlavor, PanicStrategy, RelocModel, Target, TargetOptions}; + +pub fn target() -> Target { + let opts = TargetOptions { + abi: "eabihf".into(), + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + features: "+v7,+vfp3,-d32,+thumb2,-neon,+strict-align".into(), + relocation_model: RelocModel::Static, + disable_redzone: true, + max_atomic_width: Some(64), + panic_strategy: PanicStrategy::Abort, + emit_debug_gdb_scripts: false, + // GCC and Clang default to 8 for arm-none here + c_enum_min_bits: 8, + ..Default::default() + }; + Target { + llvm_target: "armv7a-none-eabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: opts, + } +} diff --git a/compiler/rustc_target/src/spec/armv7k_apple_watchos.rs b/compiler/rustc_target/src/spec/armv7k_apple_watchos.rs new file mode 100644 index 000000000..af5d1c2ff --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7k_apple_watchos.rs @@ -0,0 +1,28 @@ +use super::apple_sdk_base::{opts, Arch}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + let base = opts("watchos", Arch::Armv7k); + Target { + llvm_target: "armv7k-apple-watchos".into(), + pointer_width: 32, + data_layout: "e-m:o-p:32:32-Fi8-i64:64-a:0:32-n32-S128".into(), + arch: "arm".into(), + options: TargetOptions { + features: "+v7,+vfp4,+neon".into(), + max_atomic_width: Some(64), + forces_embed_bitcode: true, + // These arguments are not actually invoked - they just have + // to look right to pass App Store validation. + bitcode_llvm_cmdline: "-triple\0\ + armv7k-apple-watchos3.0.0\0\ + -emit-obj\0\ + -disable-llvm-passes\0\ + -target-abi\0\ + darwinpcs\0\ + -Os\0" + .into(), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7r_none_eabi.rs b/compiler/rustc_target/src/spec/armv7r_none_eabi.rs new file mode 100644 index 000000000..5f1da09b3 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7r_none_eabi.rs @@ -0,0 +1,26 @@ +// Targets the Little-endian Cortex-R4/R5 processor (ARMv7-R) + +use crate::spec::{LinkerFlavor, LldFlavor, PanicStrategy, RelocModel}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "armv7r-unknown-none-eabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + options: TargetOptions { + abi: "eabi".into(), + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + relocation_model: RelocModel::Static, + panic_strategy: PanicStrategy::Abort, + max_atomic_width: Some(32), + emit_debug_gdb_scripts: false, + // GCC and Clang default to 8 for arm-none here + c_enum_min_bits: 8, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7r_none_eabihf.rs b/compiler/rustc_target/src/spec/armv7r_none_eabihf.rs new file mode 100644 index 000000000..0038ed0df --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7r_none_eabihf.rs @@ -0,0 +1,27 @@ +// Targets the Little-endian Cortex-R4F/R5F processor (ARMv7-R) + +use crate::spec::{LinkerFlavor, LldFlavor, PanicStrategy, RelocModel}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "armv7r-unknown-none-eabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + options: TargetOptions { + abi: "eabihf".into(), + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + relocation_model: RelocModel::Static, + panic_strategy: PanicStrategy::Abort, + features: "+vfp3,-d32,-fp16".into(), + max_atomic_width: Some(32), + emit_debug_gdb_scripts: false, + // GCC and Clang default to 8 for arm-none here + c_enum_min_bits: 8, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/armv7s_apple_ios.rs b/compiler/rustc_target/src/spec/armv7s_apple_ios.rs new file mode 100644 index 000000000..cc17265b2 --- /dev/null +++ b/compiler/rustc_target/src/spec/armv7s_apple_ios.rs @@ -0,0 +1,16 @@ +use super::apple_sdk_base::{opts, Arch}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "armv7s-apple-ios".into(), + pointer_width: 32, + data_layout: "e-m:o-p:32:32-Fi8-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32".into(), + arch: "arm".into(), + options: TargetOptions { + features: "+v7,+vfp4,+neon".into(), + max_atomic_width: Some(64), + ..opts("ios", Arch::Armv7s) + }, + } +} diff --git a/compiler/rustc_target/src/spec/asmjs_unknown_emscripten.rs b/compiler/rustc_target/src/spec/asmjs_unknown_emscripten.rs new file mode 100644 index 000000000..b4cf2c5ee --- /dev/null +++ b/compiler/rustc_target/src/spec/asmjs_unknown_emscripten.rs @@ -0,0 +1,7 @@ +use super::{wasm32_unknown_emscripten, LinkerFlavor, Target}; + +pub fn target() -> Target { + let mut target = wasm32_unknown_emscripten::target(); + target.add_post_link_args(LinkerFlavor::Em, &["-sWASM=0", "--memory-init-file", "0"]); + target +} diff --git a/compiler/rustc_target/src/spec/avr_gnu_base.rs b/compiler/rustc_target/src/spec/avr_gnu_base.rs new file mode 100644 index 000000000..1d441e558 --- /dev/null +++ b/compiler/rustc_target/src/spec/avr_gnu_base.rs @@ -0,0 +1,27 @@ +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +/// A base target for AVR devices using the GNU toolchain. +/// +/// Requires GNU avr-gcc and avr-binutils on the host system. +/// FIXME: Remove the second parameter when const string concatenation is possible. +pub fn target(target_cpu: &'static str, mmcu: &'static str) -> Target { + Target { + arch: "avr".into(), + data_layout: "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8".into(), + llvm_target: "avr-unknown-unknown".into(), + pointer_width: 16, + options: TargetOptions { + c_int_width: "16".into(), + cpu: target_cpu.into(), + exe_suffix: ".elf".into(), + + linker: Some("avr-gcc".into()), + eh_frame_header: false, + pre_link_args: TargetOptions::link_args(LinkerFlavor::Gcc, &[mmcu]), + late_link_args: TargetOptions::link_args(LinkerFlavor::Gcc, &["-lgcc"]), + max_atomic_width: Some(0), + atomic_cas: false, + ..TargetOptions::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/avr_unknown_gnu_atmega328.rs b/compiler/rustc_target/src/spec/avr_unknown_gnu_atmega328.rs new file mode 100644 index 000000000..6c16b03cc --- /dev/null +++ b/compiler/rustc_target/src/spec/avr_unknown_gnu_atmega328.rs @@ -0,0 +1,5 @@ +use crate::spec::Target; + +pub fn target() -> Target { + super::avr_gnu_base::target("atmega328", "-mmcu=atmega328") +} diff --git a/compiler/rustc_target/src/spec/bpf_base.rs b/compiler/rustc_target/src/spec/bpf_base.rs new file mode 100644 index 000000000..3c4da6f88 --- /dev/null +++ b/compiler/rustc_target/src/spec/bpf_base.rs @@ -0,0 +1,25 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, MergeFunctions, PanicStrategy, TargetOptions}; + +pub fn opts(endian: Endian) -> TargetOptions { + TargetOptions { + allow_asm: true, + endian, + linker_flavor: LinkerFlavor::BpfLinker, + atomic_cas: false, + dynamic_linking: true, + no_builtins: true, + panic_strategy: PanicStrategy::Abort, + position_independent_executables: true, + // Disable MergeFunctions since: + // - older kernels don't support bpf-to-bpf calls + // - on newer kernels, userspace still needs to relocate before calling + // BPF_PROG_LOAD and not all BPF libraries do that yet + merge_functions: MergeFunctions::Disabled, + obj_is_bitcode: true, + requires_lto: false, + singlethread: true, + max_atomic_width: Some(64), + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/bpfeb_unknown_none.rs b/compiler/rustc_target/src/spec/bpfeb_unknown_none.rs new file mode 100644 index 000000000..174ddfa50 --- /dev/null +++ b/compiler/rustc_target/src/spec/bpfeb_unknown_none.rs @@ -0,0 +1,12 @@ +use crate::spec::Target; +use crate::{abi::Endian, spec::bpf_base}; + +pub fn target() -> Target { + Target { + llvm_target: "bpfeb".into(), + data_layout: "E-m:e-p:64:64-i64:64-i128:128-n32:64-S128".into(), + pointer_width: 64, + arch: "bpf".into(), + options: bpf_base::opts(Endian::Big), + } +} diff --git a/compiler/rustc_target/src/spec/bpfel_unknown_none.rs b/compiler/rustc_target/src/spec/bpfel_unknown_none.rs new file mode 100644 index 000000000..7625e7b0e --- /dev/null +++ b/compiler/rustc_target/src/spec/bpfel_unknown_none.rs @@ -0,0 +1,12 @@ +use crate::spec::Target; +use crate::{abi::Endian, spec::bpf_base}; + +pub fn target() -> Target { + Target { + llvm_target: "bpfel".into(), + data_layout: "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128".into(), + pointer_width: 64, + arch: "bpf".into(), + options: bpf_base::opts(Endian::Little), + } +} diff --git a/compiler/rustc_target/src/spec/crt_objects.rs b/compiler/rustc_target/src/spec/crt_objects.rs new file mode 100644 index 000000000..52ac3622e --- /dev/null +++ b/compiler/rustc_target/src/spec/crt_objects.rs @@ -0,0 +1,157 @@ +//! Object files providing support for basic runtime facilities and added to the produced binaries +//! at the start and at the end of linking. +//! +//! Table of CRT objects for popular toolchains. +//! The `crtx` ones are generally distributed with libc and the `begin/end` ones with gcc. +//! See <https://dev.gentoo.org/~vapier/crt.txt> for some more details. +//! +//! | Pre-link CRT objects | glibc | musl | bionic | mingw | wasi | +//! |----------------------|------------------------|------------------------|------------------|-------------------|--------------| +//! | dynamic-nopic-exe | crt1, crti, crtbegin | crt1, crti, crtbegin | crtbegin_dynamic | crt2, crtbegin | crt1 | +//! | dynamic-pic-exe | Scrt1, crti, crtbeginS | Scrt1, crti, crtbeginS | crtbegin_dynamic | crt2, crtbegin | crt1 | +//! | static-nopic-exe | crt1, crti, crtbeginT | crt1, crti, crtbegin | crtbegin_static | crt2, crtbegin | crt1 | +//! | static-pic-exe | rcrt1, crti, crtbeginS | rcrt1, crti, crtbeginS | crtbegin_dynamic | crt2, crtbegin | crt1 | +//! | dynamic-dylib | crti, crtbeginS | crti, crtbeginS | crtbegin_so | dllcrt2, crtbegin | - | +//! | static-dylib (gcc) | crti, crtbeginT | crti, crtbeginS | crtbegin_so | dllcrt2, crtbegin | - | +//! | static-dylib (clang) | crti, crtbeginT | N/A | crtbegin_static | dllcrt2, crtbegin | - | +//! | wasi-reactor-exe | N/A | N/A | N/A | N/A | crt1-reactor | +//! +//! | Post-link CRT objects | glibc | musl | bionic | mingw | wasi | +//! |-----------------------|---------------|---------------|----------------|--------|------| +//! | dynamic-nopic-exe | crtend, crtn | crtend, crtn | crtend_android | crtend | - | +//! | dynamic-pic-exe | crtendS, crtn | crtendS, crtn | crtend_android | crtend | - | +//! | static-nopic-exe | crtend, crtn | crtend, crtn | crtend_android | crtend | - | +//! | static-pic-exe | crtendS, crtn | crtendS, crtn | crtend_android | crtend | - | +//! | dynamic-dylib | crtendS, crtn | crtendS, crtn | crtend_so | crtend | - | +//! | static-dylib (gcc) | crtend, crtn | crtendS, crtn | crtend_so | crtend | - | +//! | static-dylib (clang) | crtendS, crtn | N/A | crtend_so | crtend | - | +//! +//! Use cases for rustc linking the CRT objects explicitly: +//! - rustc needs to add its own Rust-specific objects (mingw is the example) +//! - gcc wrapper cannot be used for some reason and linker like ld or lld is used directly. +//! - gcc wrapper pulls wrong CRT objects (e.g. from glibc when we are targeting musl). +//! +//! In general it is preferable to rely on the target's native toolchain to pull the objects. +//! However, for some targets (musl, mingw) rustc historically provides a more self-contained +//! installation not requiring users to install the native target's toolchain. +//! In that case rustc distributes the objects as a part of the target's Rust toolchain +//! and falls back to linking with them manually. +//! Unlike native toolchains, rustc only currently adds the libc's objects during linking, +//! but not gcc's. As a result rustc cannot link with C++ static libraries (#36710) +//! when linking in self-contained mode. + +use crate::json::{Json, ToJson}; +use crate::spec::LinkOutputKind; +use std::borrow::Cow; +use std::collections::BTreeMap; +use std::str::FromStr; + +pub type CrtObjects = BTreeMap<LinkOutputKind, Vec<Cow<'static, str>>>; + +pub(super) fn new(obj_table: &[(LinkOutputKind, &[&'static str])]) -> CrtObjects { + obj_table.iter().map(|(z, k)| (*z, k.iter().map(|b| (*b).into()).collect())).collect() +} + +pub(super) fn all(obj: &'static str) -> CrtObjects { + new(&[ + (LinkOutputKind::DynamicNoPicExe, &[obj]), + (LinkOutputKind::DynamicPicExe, &[obj]), + (LinkOutputKind::StaticNoPicExe, &[obj]), + (LinkOutputKind::StaticPicExe, &[obj]), + (LinkOutputKind::DynamicDylib, &[obj]), + (LinkOutputKind::StaticDylib, &[obj]), + ]) +} + +pub(super) fn pre_musl_fallback() -> CrtObjects { + new(&[ + (LinkOutputKind::DynamicNoPicExe, &["crt1.o", "crti.o", "crtbegin.o"]), + (LinkOutputKind::DynamicPicExe, &["Scrt1.o", "crti.o", "crtbeginS.o"]), + (LinkOutputKind::StaticNoPicExe, &["crt1.o", "crti.o", "crtbegin.o"]), + (LinkOutputKind::StaticPicExe, &["rcrt1.o", "crti.o", "crtbeginS.o"]), + (LinkOutputKind::DynamicDylib, &["crti.o", "crtbeginS.o"]), + (LinkOutputKind::StaticDylib, &["crti.o", "crtbeginS.o"]), + ]) +} + +pub(super) fn post_musl_fallback() -> CrtObjects { + new(&[ + (LinkOutputKind::DynamicNoPicExe, &["crtend.o", "crtn.o"]), + (LinkOutputKind::DynamicPicExe, &["crtendS.o", "crtn.o"]), + (LinkOutputKind::StaticNoPicExe, &["crtend.o", "crtn.o"]), + (LinkOutputKind::StaticPicExe, &["crtendS.o", "crtn.o"]), + (LinkOutputKind::DynamicDylib, &["crtendS.o", "crtn.o"]), + (LinkOutputKind::StaticDylib, &["crtendS.o", "crtn.o"]), + ]) +} + +pub(super) fn pre_mingw_fallback() -> CrtObjects { + new(&[ + (LinkOutputKind::DynamicNoPicExe, &["crt2.o", "rsbegin.o"]), + (LinkOutputKind::DynamicPicExe, &["crt2.o", "rsbegin.o"]), + (LinkOutputKind::StaticNoPicExe, &["crt2.o", "rsbegin.o"]), + (LinkOutputKind::StaticPicExe, &["crt2.o", "rsbegin.o"]), + (LinkOutputKind::DynamicDylib, &["dllcrt2.o", "rsbegin.o"]), + (LinkOutputKind::StaticDylib, &["dllcrt2.o", "rsbegin.o"]), + ]) +} + +pub(super) fn post_mingw_fallback() -> CrtObjects { + all("rsend.o") +} + +pub(super) fn pre_mingw() -> CrtObjects { + all("rsbegin.o") +} + +pub(super) fn post_mingw() -> CrtObjects { + all("rsend.o") +} + +pub(super) fn pre_wasi_fallback() -> CrtObjects { + // Use crt1-command.o instead of crt1.o to enable support for new-style + // commands. See https://reviews.llvm.org/D81689 for more info. + new(&[ + (LinkOutputKind::DynamicNoPicExe, &["crt1-command.o"]), + (LinkOutputKind::DynamicPicExe, &["crt1-command.o"]), + (LinkOutputKind::StaticNoPicExe, &["crt1-command.o"]), + (LinkOutputKind::StaticPicExe, &["crt1-command.o"]), + (LinkOutputKind::WasiReactorExe, &["crt1-reactor.o"]), + ]) +} + +pub(super) fn post_wasi_fallback() -> CrtObjects { + new(&[]) +} + +/// Which logic to use to determine whether to fall back to the "self-contained" mode or not. +#[derive(Clone, Copy, PartialEq, Hash, Debug)] +pub enum CrtObjectsFallback { + Musl, + Mingw, + Wasm, +} + +impl FromStr for CrtObjectsFallback { + type Err = (); + + fn from_str(s: &str) -> Result<CrtObjectsFallback, ()> { + Ok(match s { + "musl" => CrtObjectsFallback::Musl, + "mingw" => CrtObjectsFallback::Mingw, + "wasm" => CrtObjectsFallback::Wasm, + _ => return Err(()), + }) + } +} + +impl ToJson for CrtObjectsFallback { + fn to_json(&self) -> Json { + match *self { + CrtObjectsFallback::Musl => "musl", + CrtObjectsFallback::Mingw => "mingw", + CrtObjectsFallback::Wasm => "wasm", + } + .to_json() + } +} diff --git a/compiler/rustc_target/src/spec/dragonfly_base.rs b/compiler/rustc_target/src/spec/dragonfly_base.rs new file mode 100644 index 000000000..de2be7817 --- /dev/null +++ b/compiler/rustc_target/src/spec/dragonfly_base.rs @@ -0,0 +1,14 @@ +use crate::spec::{cvs, RelroLevel, TargetOptions}; + +pub fn opts() -> TargetOptions { + TargetOptions { + os: "dragonfly".into(), + dynamic_linking: true, + families: cvs!["unix"], + has_rpath: true, + position_independent_executables: true, + relro_level: RelroLevel::Full, + default_dwarf_version: 2, + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/freebsd_base.rs b/compiler/rustc_target/src/spec/freebsd_base.rs new file mode 100644 index 000000000..8c141aaae --- /dev/null +++ b/compiler/rustc_target/src/spec/freebsd_base.rs @@ -0,0 +1,15 @@ +use crate::spec::{cvs, RelroLevel, TargetOptions}; + +pub fn opts() -> TargetOptions { + TargetOptions { + os: "freebsd".into(), + dynamic_linking: true, + families: cvs!["unix"], + has_rpath: true, + position_independent_executables: true, + relro_level: RelroLevel::Full, + abi_return_struct_as_int: true, + default_dwarf_version: 2, + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/fuchsia_base.rs b/compiler/rustc_target/src/spec/fuchsia_base.rs new file mode 100644 index 000000000..df1e3275f --- /dev/null +++ b/compiler/rustc_target/src/spec/fuchsia_base.rs @@ -0,0 +1,38 @@ +use crate::spec::{crt_objects, cvs, LinkOutputKind, LinkerFlavor, LldFlavor, TargetOptions}; + +pub fn opts() -> TargetOptions { + let pre_link_args = TargetOptions::link_args( + LinkerFlavor::Ld, + &[ + "--build-id", + "--hash-style=gnu", + "-z", + "max-page-size=4096", + "-z", + "now", + "-z", + "rodynamic", + "-z", + "separate-loadable-segments", + "--pack-dyn-relocs=relr", + ], + ); + + TargetOptions { + os: "fuchsia".into(), + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + dynamic_linking: true, + families: cvs!["unix"], + pre_link_args, + pre_link_objects: crt_objects::new(&[ + (LinkOutputKind::DynamicNoPicExe, &["Scrt1.o"]), + (LinkOutputKind::DynamicPicExe, &["Scrt1.o"]), + (LinkOutputKind::StaticNoPicExe, &["Scrt1.o"]), + (LinkOutputKind::StaticPicExe, &["Scrt1.o"]), + ]), + position_independent_executables: true, + has_thread_local: true, + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/haiku_base.rs b/compiler/rustc_target/src/spec/haiku_base.rs new file mode 100644 index 000000000..8ab874410 --- /dev/null +++ b/compiler/rustc_target/src/spec/haiku_base.rs @@ -0,0 +1,11 @@ +use crate::spec::{cvs, RelroLevel, TargetOptions}; + +pub fn opts() -> TargetOptions { + TargetOptions { + os: "haiku".into(), + dynamic_linking: true, + families: cvs!["unix"], + relro_level: RelroLevel::Full, + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/hermit_base.rs b/compiler/rustc_target/src/spec/hermit_base.rs new file mode 100644 index 000000000..562ccef7e --- /dev/null +++ b/compiler/rustc_target/src/spec/hermit_base.rs @@ -0,0 +1,21 @@ +use crate::spec::{LinkerFlavor, LldFlavor, PanicStrategy, TargetOptions, TlsModel}; + +pub fn opts() -> TargetOptions { + let pre_link_args = TargetOptions::link_args( + LinkerFlavor::Ld, + &["--build-id", "--hash-style=gnu", "--Bstatic"], + ); + + TargetOptions { + os: "hermit".into(), + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + has_thread_local: true, + pre_link_args, + panic_strategy: PanicStrategy::Abort, + position_independent_executables: true, + static_position_independent_executables: true, + tls_model: TlsModel::InitialExec, + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/hexagon_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/hexagon_unknown_linux_musl.rs new file mode 100644 index 000000000..cc2c78c69 --- /dev/null +++ b/compiler/rustc_target/src/spec/hexagon_unknown_linux_musl.rs @@ -0,0 +1,30 @@ +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::linux_musl_base::opts(); + base.cpu = "hexagonv60".into(); + base.max_atomic_width = Some(32); + // FIXME: HVX length defaults are per-CPU + base.features = "-small-data,+hvx-length128b".into(); + + base.crt_static_default = false; + base.has_rpath = true; + base.linker_is_gnu = false; + base.dynamic_linking = true; + + base.c_enum_min_bits = 8; + + Target { + llvm_target: "hexagon-unknown-linux-musl".into(), + pointer_width: 32, + data_layout: concat!( + "e-m:e-p:32:32:32-a:0-n16:32-i64:64:64-i32:32", + ":32-i16:16:16-i1:8:8-f32:32:32-f64:64:64-v32", + ":32:32-v64:64:64-v512:512:512-v1024:1024:1024-v2048", + ":2048:2048" + ) + .into(), + arch: "hexagon".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/i386_apple_ios.rs b/compiler/rustc_target/src/spec/i386_apple_ios.rs new file mode 100644 index 000000000..8b6266c58 --- /dev/null +++ b/compiler/rustc_target/src/spec/i386_apple_ios.rs @@ -0,0 +1,22 @@ +use super::apple_sdk_base::{opts, Arch}; +use crate::spec::{StackProbeType, Target, TargetOptions}; + +pub fn target() -> Target { + let base = opts("ios", Arch::I386); + let llvm_target = super::apple_base::ios_sim_llvm_target("i386"); + + Target { + llvm_target: llvm_target.into(), + pointer_width: 32, + data_layout: "e-m:o-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + f64:32:64-f80:128-n8:16:32-S128" + .into(), + arch: "x86".into(), + options: TargetOptions { + max_atomic_width: Some(64), + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + stack_probes: StackProbeType::Call, + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/i386_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/i386_unknown_linux_gnu.rs new file mode 100644 index 000000000..801a88933 --- /dev/null +++ b/compiler/rustc_target/src/spec/i386_unknown_linux_gnu.rs @@ -0,0 +1,8 @@ +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::i686_unknown_linux_gnu::target(); + base.cpu = "i386".into(); + base.llvm_target = "i386-unknown-linux-gnu".into(); + base +} diff --git a/compiler/rustc_target/src/spec/i486_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/i486_unknown_linux_gnu.rs new file mode 100644 index 000000000..a11fbecc3 --- /dev/null +++ b/compiler/rustc_target/src/spec/i486_unknown_linux_gnu.rs @@ -0,0 +1,8 @@ +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::i686_unknown_linux_gnu::target(); + base.cpu = "i486".into(); + base.llvm_target = "i486-unknown-linux-gnu".into(); + base +} diff --git a/compiler/rustc_target/src/spec/i586_pc_windows_msvc.rs b/compiler/rustc_target/src/spec/i586_pc_windows_msvc.rs new file mode 100644 index 000000000..befb0f89f --- /dev/null +++ b/compiler/rustc_target/src/spec/i586_pc_windows_msvc.rs @@ -0,0 +1,8 @@ +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::i686_pc_windows_msvc::target(); + base.cpu = "pentium".into(); + base.llvm_target = "i586-pc-windows-msvc".into(); + base +} diff --git a/compiler/rustc_target/src/spec/i586_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/i586_unknown_linux_gnu.rs new file mode 100644 index 000000000..b699a7af1 --- /dev/null +++ b/compiler/rustc_target/src/spec/i586_unknown_linux_gnu.rs @@ -0,0 +1,8 @@ +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::i686_unknown_linux_gnu::target(); + base.cpu = "pentium".into(); + base.llvm_target = "i586-unknown-linux-gnu".into(); + base +} diff --git a/compiler/rustc_target/src/spec/i586_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/i586_unknown_linux_musl.rs new file mode 100644 index 000000000..55a26eb00 --- /dev/null +++ b/compiler/rustc_target/src/spec/i586_unknown_linux_musl.rs @@ -0,0 +1,8 @@ +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::i686_unknown_linux_musl::target(); + base.cpu = "pentium".into(); + base.llvm_target = "i586-unknown-linux-musl".into(); + base +} diff --git a/compiler/rustc_target/src/spec/i686_apple_darwin.rs b/compiler/rustc_target/src/spec/i686_apple_darwin.rs new file mode 100644 index 000000000..1718bd77b --- /dev/null +++ b/compiler/rustc_target/src/spec/i686_apple_darwin.rs @@ -0,0 +1,28 @@ +use crate::spec::{FramePointer, LinkerFlavor, StackProbeType, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::apple_base::opts("macos"); + base.cpu = "yonah".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m32"]); + base.link_env_remove.to_mut().extend(super::apple_base::macos_link_env_remove()); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + base.frame_pointer = FramePointer::Always; + + // Clang automatically chooses a more specific target based on + // MACOSX_DEPLOYMENT_TARGET. To enable cross-language LTO to work + // correctly, we do too. + let arch = "i686"; + let llvm_target = super::apple_base::macos_llvm_target(&arch); + + Target { + llvm_target: llvm_target.into(), + pointer_width: 32, + data_layout: "e-m:o-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + f64:32:64-f80:128-n8:16:32-S128" + .into(), + arch: "x86".into(), + options: TargetOptions { mcount: "\u{1}mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/i686_linux_android.rs b/compiler/rustc_target/src/spec/i686_linux_android.rs new file mode 100644 index 000000000..bdaf5c990 --- /dev/null +++ b/compiler/rustc_target/src/spec/i686_linux_android.rs @@ -0,0 +1,26 @@ +use crate::spec::{SanitizerSet, StackProbeType, Target, TargetOptions}; + +// See https://developer.android.com/ndk/guides/abis.html#x86 +// for target ABI requirements. + +pub fn target() -> Target { + let mut base = super::android_base::opts(); + + base.max_atomic_width = Some(64); + + // https://developer.android.com/ndk/guides/abis.html#x86 + base.cpu = "pentiumpro".into(); + base.features = "+mmx,+sse,+sse2,+sse3,+ssse3".into(); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + + Target { + llvm_target: "i686-linux-android".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + f64:32:64-f80:32-n8:16:32-S128" + .into(), + arch: "x86".into(), + options: TargetOptions { supported_sanitizers: SanitizerSet::ADDRESS, ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/i686_pc_windows_gnu.rs b/compiler/rustc_target/src/spec/i686_pc_windows_gnu.rs new file mode 100644 index 000000000..631865439 --- /dev/null +++ b/compiler/rustc_target/src/spec/i686_pc_windows_gnu.rs @@ -0,0 +1,24 @@ +use crate::spec::{FramePointer, LinkerFlavor, Target}; + +pub fn target() -> Target { + let mut base = super::windows_gnu_base::opts(); + base.cpu = "pentium4".into(); + base.max_atomic_width = Some(64); + base.frame_pointer = FramePointer::Always; // Required for backtraces + base.linker = Some("i686-w64-mingw32-gcc".into()); + + // Mark all dynamic libraries and executables as compatible with the larger 4GiB address + // space available to x86 Windows binaries on x86_64. + base.add_pre_link_args(LinkerFlavor::Ld, &["-m", "i386pe", "--large-address-aware"]); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-Wl,--large-address-aware"]); + + Target { + llvm_target: "i686-pc-windows-gnu".into(), + pointer_width: 32, + data_layout: "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + i64:64-f80:32-n8:16:32-a:0:32-S32" + .into(), + arch: "x86".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/i686_pc_windows_msvc.rs b/compiler/rustc_target/src/spec/i686_pc_windows_msvc.rs new file mode 100644 index 000000000..f4ceaa1ca --- /dev/null +++ b/compiler/rustc_target/src/spec/i686_pc_windows_msvc.rs @@ -0,0 +1,32 @@ +use crate::spec::{LinkerFlavor, Target}; + +pub fn target() -> Target { + let mut base = super::windows_msvc_base::opts(); + base.cpu = "pentium4".into(); + base.max_atomic_width = Some(64); + + base.add_pre_link_args( + LinkerFlavor::Msvc, + &[ + // Mark all dynamic libraries and executables as compatible with the larger 4GiB address + // space available to x86 Windows binaries on x86_64. + "/LARGEADDRESSAWARE", + // Ensure the linker will only produce an image if it can also produce a table of + // the image's safe exception handlers. + // https://docs.microsoft.com/en-us/cpp/build/reference/safeseh-image-has-safe-exception-handlers + "/SAFESEH", + ], + ); + // Workaround for #95429 + base.has_thread_local = false; + + Target { + llvm_target: "i686-pc-windows-msvc".into(), + pointer_width: 32, + data_layout: "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + i64:64-f80:128-n8:16:32-a:0:32-S32" + .into(), + arch: "x86".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/i686_unknown_freebsd.rs b/compiler/rustc_target/src/spec/i686_unknown_freebsd.rs new file mode 100644 index 000000000..aff284bf2 --- /dev/null +++ b/compiler/rustc_target/src/spec/i686_unknown_freebsd.rs @@ -0,0 +1,20 @@ +use crate::spec::{LinkerFlavor, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::freebsd_base::opts(); + base.cpu = "pentium4".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m32", "-Wl,-znotext"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + + Target { + llvm_target: "i686-unknown-freebsd".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + f64:32:64-f80:32-n8:16:32-S128" + .into(), + arch: "x86".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/i686_unknown_haiku.rs b/compiler/rustc_target/src/spec/i686_unknown_haiku.rs new file mode 100644 index 000000000..87aa74e40 --- /dev/null +++ b/compiler/rustc_target/src/spec/i686_unknown_haiku.rs @@ -0,0 +1,20 @@ +use crate::spec::{LinkerFlavor, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::haiku_base::opts(); + base.cpu = "pentium4".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m32"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + + Target { + llvm_target: "i686-unknown-haiku".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + f64:32:64-f80:32-n8:16:32-S128" + .into(), + arch: "x86".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/i686_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/i686_unknown_linux_gnu.rs new file mode 100644 index 000000000..765803d16 --- /dev/null +++ b/compiler/rustc_target/src/spec/i686_unknown_linux_gnu.rs @@ -0,0 +1,20 @@ +use crate::spec::{LinkerFlavor, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::linux_gnu_base::opts(); + base.cpu = "pentium4".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m32"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + + Target { + llvm_target: "i686-unknown-linux-gnu".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + f64:32:64-f80:32-n8:16:32-S128" + .into(), + arch: "x86".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/i686_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/i686_unknown_linux_musl.rs new file mode 100644 index 000000000..d94928043 --- /dev/null +++ b/compiler/rustc_target/src/spec/i686_unknown_linux_musl.rs @@ -0,0 +1,34 @@ +use crate::spec::{FramePointer, LinkerFlavor, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::linux_musl_base::opts(); + base.cpu = "pentium4".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m32", "-Wl,-melf_i386"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + + // The unwinder used by i686-unknown-linux-musl, the LLVM libunwind + // implementation, apparently relies on frame pointers existing... somehow. + // It's not clear to me why nor where this dependency is introduced, but the + // test suite does not pass with frame pointers eliminated and it passes + // with frame pointers present. + // + // If you think that this is no longer necessary, then please feel free to + // ignore! If it still passes the test suite and the bots then sounds good + // to me. + // + // This may or may not be related to this bug: + // https://llvm.org/bugs/show_bug.cgi?id=30879 + base.frame_pointer = FramePointer::Always; + + Target { + llvm_target: "i686-unknown-linux-musl".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + f64:32:64-f80:32-n8:16:32-S128" + .into(), + arch: "x86".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/i686_unknown_netbsd.rs b/compiler/rustc_target/src/spec/i686_unknown_netbsd.rs new file mode 100644 index 000000000..8de698b51 --- /dev/null +++ b/compiler/rustc_target/src/spec/i686_unknown_netbsd.rs @@ -0,0 +1,20 @@ +use crate::spec::{LinkerFlavor, StackProbeType, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::netbsd_base::opts(); + base.cpu = "pentium4".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m32"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + + Target { + llvm_target: "i686-unknown-netbsdelf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + f64:32:64-f80:32-n8:16:32-S128" + .into(), + arch: "x86".into(), + options: TargetOptions { mcount: "__mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/i686_unknown_openbsd.rs b/compiler/rustc_target/src/spec/i686_unknown_openbsd.rs new file mode 100644 index 000000000..7f25a1a16 --- /dev/null +++ b/compiler/rustc_target/src/spec/i686_unknown_openbsd.rs @@ -0,0 +1,20 @@ +use crate::spec::{LinkerFlavor, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::openbsd_base::opts(); + base.cpu = "pentium4".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m32", "-fuse-ld=lld"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + + Target { + llvm_target: "i686-unknown-openbsd".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + f64:32:64-f80:32-n8:16:32-S128" + .into(), + arch: "x86".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/i686_unknown_uefi.rs b/compiler/rustc_target/src/spec/i686_unknown_uefi.rs new file mode 100644 index 000000000..a2e42c5e6 --- /dev/null +++ b/compiler/rustc_target/src/spec/i686_unknown_uefi.rs @@ -0,0 +1,89 @@ +// This defines the ia32 target for UEFI systems as described in the UEFI specification. See the +// uefi-base module for generic UEFI options. On ia32 systems +// UEFI systems always run in protected-mode, have the interrupt-controller pre-configured and +// force a single-CPU execution. +// The cdecl ABI is used. It differs from the stdcall or fastcall ABI. +// "i686-unknown-windows" is used to get the minimal subset of windows-specific features. + +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::uefi_msvc_base::opts(); + base.cpu = "pentium4".into(); + base.max_atomic_width = Some(64); + + // We disable MMX and SSE for now, even though UEFI allows using them. Problem is, you have to + // enable these CPU features explicitly before their first use, otherwise their instructions + // will trigger an exception. Rust does not inject any code that enables AVX/MMX/SSE + // instruction sets, so this must be done by the firmware. However, existing firmware is known + // to leave these uninitialized, thus triggering exceptions if we make use of them. Which is + // why we avoid them and instead use soft-floats. This is also what GRUB and friends did so + // far. + // If you initialize FP units yourself, you can override these flags with custom linker + // arguments, thus giving you access to full MMX/SSE acceleration. + base.features = "-mmx,-sse,+soft-float".into(); + + // Use -GNU here, because of the reason below: + // Background and Problem: + // If we use i686-unknown-windows, the LLVM IA32 MSVC generates compiler intrinsic + // _alldiv, _aulldiv, _allrem, _aullrem, _allmul, which will cause undefined symbol. + // A real issue is __aulldiv() is referred by __udivdi3() - udivmod_inner!(), from + // https://github.com/rust-lang-nursery/compiler-builtins. + // As result, rust-lld generates link error finally. + // Root-cause: + // In rust\src\llvm-project\llvm\lib\Target\X86\X86ISelLowering.cpp, + // we have below code to use MSVC intrinsics. It assumes MSVC target + // will link MSVC library. But that is NOT true in UEFI environment. + // UEFI does not link any MSVC or GCC standard library. + // if (Subtarget.isTargetKnownWindowsMSVC() || + // Subtarget.isTargetWindowsItanium()) { + // // Setup Windows compiler runtime calls. + // setLibcallName(RTLIB::SDIV_I64, "_alldiv"); + // setLibcallName(RTLIB::UDIV_I64, "_aulldiv"); + // setLibcallName(RTLIB::SREM_I64, "_allrem"); + // setLibcallName(RTLIB::UREM_I64, "_aullrem"); + // setLibcallName(RTLIB::MUL_I64, "_allmul"); + // setLibcallCallingConv(RTLIB::SDIV_I64, CallingConv::X86_StdCall); + // setLibcallCallingConv(RTLIB::UDIV_I64, CallingConv::X86_StdCall); + // setLibcallCallingConv(RTLIB::SREM_I64, CallingConv::X86_StdCall); + // setLibcallCallingConv(RTLIB::UREM_I64, CallingConv::X86_StdCall); + // setLibcallCallingConv(RTLIB::MUL_I64, CallingConv::X86_StdCall); + // } + // The compiler intrinsics should be implemented by compiler-builtins. + // Unfortunately, compiler-builtins has not provided those intrinsics yet. Such as: + // i386/divdi3.S + // i386/lshrdi3.S + // i386/moddi3.S + // i386/muldi3.S + // i386/udivdi3.S + // i386/umoddi3.S + // Possible solution: + // 1. Eliminate Intrinsics generation. + // 1.1 Choose different target to bypass isTargetKnownWindowsMSVC(). + // 1.2 Remove the "Setup Windows compiler runtime calls" in LLVM + // 2. Implement Intrinsics. + // We evaluated all options. + // #2 is hard because we need implement the intrinsics (_aulldiv) generated + // from the other intrinsics (__udivdi3) implementation with the same + // functionality (udivmod_inner). If we let _aulldiv() call udivmod_inner!(), + // then we are in loop. We may have to find another way to implement udivmod_inner!(). + // #1.2 may break the existing usage. + // #1.1 seems the simplest solution today. + // The IA32 -gnu calling convention is same as the one defined in UEFI specification. + // It uses cdecl, EAX/ECX/EDX as volatile register, and EAX/EDX as return value. + // We also checked the LLVM X86TargetLowering, the differences between -gnu and -msvc + // is fmodf(f32), longjmp() and TLS. None of them impacts the UEFI code. + // As a result, we choose -gnu for i686 version before those intrinsics are implemented in + // compiler-builtins. After compiler-builtins implements all required intrinsics, we may + // remove -gnu and use the default one. + Target { + llvm_target: "i686-unknown-windows-gnu".into(), + pointer_width: 32, + data_layout: "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + i64:64-f80:32-n8:16:32-a:0:32-S32" + .into(), + arch: "x86".into(), + + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/i686_uwp_windows_gnu.rs b/compiler/rustc_target/src/spec/i686_uwp_windows_gnu.rs new file mode 100644 index 000000000..d52810d2f --- /dev/null +++ b/compiler/rustc_target/src/spec/i686_uwp_windows_gnu.rs @@ -0,0 +1,23 @@ +use crate::spec::{FramePointer, LinkerFlavor, Target}; + +pub fn target() -> Target { + let mut base = super::windows_uwp_gnu_base::opts(); + base.cpu = "pentium4".into(); + base.max_atomic_width = Some(64); + base.frame_pointer = FramePointer::Always; // Required for backtraces + + // Mark all dynamic libraries and executables as compatible with the larger 4GiB address + // space available to x86 Windows binaries on x86_64. + base.add_pre_link_args(LinkerFlavor::Ld, &["-m", "i386pe", "--large-address-aware"]); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-Wl,--large-address-aware"]); + + Target { + llvm_target: "i686-pc-windows-gnu".into(), + pointer_width: 32, + data_layout: "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + i64:64-f80:32-n8:16:32-a:0:32-S32" + .into(), + arch: "x86".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/i686_uwp_windows_msvc.rs b/compiler/rustc_target/src/spec/i686_uwp_windows_msvc.rs new file mode 100644 index 000000000..4c657fe90 --- /dev/null +++ b/compiler/rustc_target/src/spec/i686_uwp_windows_msvc.rs @@ -0,0 +1,17 @@ +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::windows_uwp_msvc_base::opts(); + base.cpu = "pentium4".into(); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "i686-pc-windows-msvc".into(), + pointer_width: 32, + data_layout: "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + i64:64-f80:128-n8:16:32-a:0:32-S32" + .into(), + arch: "x86".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/i686_wrs_vxworks.rs b/compiler/rustc_target/src/spec/i686_wrs_vxworks.rs new file mode 100644 index 000000000..f62404e82 --- /dev/null +++ b/compiler/rustc_target/src/spec/i686_wrs_vxworks.rs @@ -0,0 +1,20 @@ +use crate::spec::{LinkerFlavor, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::vxworks_base::opts(); + base.cpu = "pentium4".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m32"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + + Target { + llvm_target: "i686-unknown-linux-gnu".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + f64:32:64-f80:32-n8:16:32-S128" + .into(), + arch: "x86".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/illumos_base.rs b/compiler/rustc_target/src/spec/illumos_base.rs new file mode 100644 index 000000000..77e000474 --- /dev/null +++ b/compiler/rustc_target/src/spec/illumos_base.rs @@ -0,0 +1,59 @@ +use crate::spec::{cvs, FramePointer, LinkerFlavor, TargetOptions}; + +pub fn opts() -> TargetOptions { + let late_link_args = TargetOptions::link_args( + LinkerFlavor::Gcc, + &[ + // The illumos libc contains a stack unwinding implementation, as + // does libgcc_s. The latter implementation includes several + // additional symbols that are not always in base libc. To force + // the consistent use of just one unwinder, we ensure libc appears + // after libgcc_s in the NEEDED list for the resultant binary by + // ignoring any attempts to add it as a dynamic dependency until the + // very end. + // FIXME: This should be replaced by a more complete and generic + // mechanism for controlling the order of library arguments passed + // to the linker. + "-lc", + // LLVM will insert calls to the stack protector functions + // "__stack_chk_fail" and "__stack_chk_guard" into code in native + // object files. Some platforms include these symbols directly in + // libc, but at least historically these have been provided in + // libssp.so on illumos and Solaris systems. + "-lssp", + ], + ); + + TargetOptions { + os: "illumos".into(), + dynamic_linking: true, + has_rpath: true, + families: cvs!["unix"], + is_like_solaris: true, + linker_is_gnu: false, + limit_rdylib_exports: false, // Linker doesn't support this + frame_pointer: FramePointer::Always, + eh_frame_header: false, + late_link_args, + + // While we support ELF TLS, rust requires a way to register + // cleanup handlers (in C, this would be something along the lines of: + // void register_callback(void (*fn)(void *), void *arg); + // (see src/libstd/sys/unix/fast_thread_local.rs) that is currently + // missing in illumos. For now at least, we must fallback to using + // pthread_{get,set}specific. + //has_thread_local: true, + + // FIXME: Currently, rust is invoking cc to link, which ends up + // causing these to get included twice. We should eventually transition + // to having rustc invoke ld directly, in which case these will need to + // be uncommented. + // + // We want XPG6 behavior from libc and libm. See standards(5) + //pre_link_objects_exe: vec![ + // "/usr/lib/amd64/values-Xc.o".into(), + // "/usr/lib/amd64/values-xpg6.o".into(), + //], + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/l4re_base.rs b/compiler/rustc_target/src/spec/l4re_base.rs new file mode 100644 index 000000000..a08756861 --- /dev/null +++ b/compiler/rustc_target/src/spec/l4re_base.rs @@ -0,0 +1,14 @@ +use crate::spec::{cvs, LinkerFlavor, PanicStrategy, TargetOptions}; + +pub fn opts() -> TargetOptions { + TargetOptions { + os: "l4re".into(), + env: "uclibc".into(), + linker_flavor: LinkerFlavor::L4Bender, + panic_strategy: PanicStrategy::Abort, + linker: Some("l4-bender".into()), + linker_is_gnu: false, + families: cvs!["unix"], + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/linux_base.rs b/compiler/rustc_target/src/spec/linux_base.rs new file mode 100644 index 000000000..f4fce3b40 --- /dev/null +++ b/compiler/rustc_target/src/spec/linux_base.rs @@ -0,0 +1,15 @@ +use crate::spec::{cvs, RelroLevel, TargetOptions}; + +pub fn opts() -> TargetOptions { + TargetOptions { + os: "linux".into(), + dynamic_linking: true, + families: cvs!["unix"], + has_rpath: true, + position_independent_executables: true, + relro_level: RelroLevel::Full, + has_thread_local: true, + crt_static_respected: true, + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/linux_gnu_base.rs b/compiler/rustc_target/src/spec/linux_gnu_base.rs new file mode 100644 index 000000000..8d6b3f185 --- /dev/null +++ b/compiler/rustc_target/src/spec/linux_gnu_base.rs @@ -0,0 +1,5 @@ +use crate::spec::TargetOptions; + +pub fn opts() -> TargetOptions { + TargetOptions { env: "gnu".into(), ..super::linux_base::opts() } +} diff --git a/compiler/rustc_target/src/spec/linux_kernel_base.rs b/compiler/rustc_target/src/spec/linux_kernel_base.rs new file mode 100644 index 000000000..0f5d85205 --- /dev/null +++ b/compiler/rustc_target/src/spec/linux_kernel_base.rs @@ -0,0 +1,19 @@ +use crate::spec::TargetOptions; +use crate::spec::{FramePointer, PanicStrategy, RelocModel, RelroLevel, StackProbeType}; + +pub fn opts() -> TargetOptions { + TargetOptions { + env: "gnu".into(), + disable_redzone: true, + panic_strategy: PanicStrategy::Abort, + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + stack_probes: StackProbeType::Call, + frame_pointer: FramePointer::Always, + position_independent_executables: true, + needs_plt: true, + relro_level: RelroLevel::Full, + relocation_model: RelocModel::Static, + + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/linux_musl_base.rs b/compiler/rustc_target/src/spec/linux_musl_base.rs new file mode 100644 index 000000000..207a87ab0 --- /dev/null +++ b/compiler/rustc_target/src/spec/linux_musl_base.rs @@ -0,0 +1,16 @@ +use crate::spec::crt_objects::{self, CrtObjectsFallback}; +use crate::spec::TargetOptions; + +pub fn opts() -> TargetOptions { + let mut base = super::linux_base::opts(); + + base.env = "musl".into(); + base.pre_link_objects_fallback = crt_objects::pre_musl_fallback(); + base.post_link_objects_fallback = crt_objects::post_musl_fallback(); + base.crt_objects_fallback = Some(CrtObjectsFallback::Musl); + + // These targets statically link libc by default + base.crt_static_default = true; + + base +} diff --git a/compiler/rustc_target/src/spec/linux_uclibc_base.rs b/compiler/rustc_target/src/spec/linux_uclibc_base.rs new file mode 100644 index 000000000..4ba480ffe --- /dev/null +++ b/compiler/rustc_target/src/spec/linux_uclibc_base.rs @@ -0,0 +1,5 @@ +use crate::spec::TargetOptions; + +pub fn opts() -> TargetOptions { + TargetOptions { env: "uclibc".into(), ..super::linux_base::opts() } +} diff --git a/compiler/rustc_target/src/spec/m68k_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/m68k_unknown_linux_gnu.rs new file mode 100644 index 000000000..ebd74012d --- /dev/null +++ b/compiler/rustc_target/src/spec/m68k_unknown_linux_gnu.rs @@ -0,0 +1,15 @@ +use crate::abi::Endian; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_gnu_base::opts(); + base.max_atomic_width = Some(32); + + Target { + llvm_target: "m68k-unknown-linux-gnu".into(), + pointer_width: 32, + data_layout: "E-m:e-p:32:16:32-i8:8:8-i16:16:16-i32:16:32-n8:16:32-a:0:16-S16".into(), + arch: "m68k".into(), + options: TargetOptions { endian: Endian::Big, mcount: "_mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/mips64_openwrt_linux_musl.rs b/compiler/rustc_target/src/spec/mips64_openwrt_linux_musl.rs new file mode 100644 index 000000000..3c6ef52c6 --- /dev/null +++ b/compiler/rustc_target/src/spec/mips64_openwrt_linux_musl.rs @@ -0,0 +1,26 @@ +/// A target tuple for OpenWrt MIPS64 targets +/// +use crate::abi::Endian; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_musl_base::opts(); + base.cpu = "mips64r2".into(); + base.features = "+mips64r2,+soft-float".into(); + base.max_atomic_width = Some(64); + base.crt_static_default = false; + + Target { + // LLVM doesn't recognize "muslabi64" yet. + llvm_target: "mips64-unknown-linux-musl".into(), + pointer_width: 64, + data_layout: "E-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128".into(), + arch: "mips64".into(), + options: TargetOptions { + abi: "abi64".into(), + endian: Endian::Big, + mcount: "_mcount".into(), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/mips64_unknown_linux_gnuabi64.rs b/compiler/rustc_target/src/spec/mips64_unknown_linux_gnuabi64.rs new file mode 100644 index 000000000..fc5dbd114 --- /dev/null +++ b/compiler/rustc_target/src/spec/mips64_unknown_linux_gnuabi64.rs @@ -0,0 +1,22 @@ +use crate::abi::Endian; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "mips64-unknown-linux-gnuabi64".into(), + pointer_width: 64, + data_layout: "E-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128".into(), + arch: "mips64".into(), + options: TargetOptions { + abi: "abi64".into(), + endian: Endian::Big, + // NOTE(mips64r2) matches C toolchain + cpu: "mips64r2".into(), + features: "+mips64r2".into(), + max_atomic_width: Some(64), + mcount: "_mcount".into(), + + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/mips64_unknown_linux_muslabi64.rs b/compiler/rustc_target/src/spec/mips64_unknown_linux_muslabi64.rs new file mode 100644 index 000000000..465e97a02 --- /dev/null +++ b/compiler/rustc_target/src/spec/mips64_unknown_linux_muslabi64.rs @@ -0,0 +1,22 @@ +use crate::abi::Endian; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_musl_base::opts(); + base.cpu = "mips64r2".into(); + base.features = "+mips64r2".into(); + base.max_atomic_width = Some(64); + Target { + // LLVM doesn't recognize "muslabi64" yet. + llvm_target: "mips64-unknown-linux-musl".into(), + pointer_width: 64, + data_layout: "E-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128".into(), + arch: "mips64".into(), + options: TargetOptions { + abi: "abi64".into(), + endian: Endian::Big, + mcount: "_mcount".into(), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/mips64el_unknown_linux_gnuabi64.rs b/compiler/rustc_target/src/spec/mips64el_unknown_linux_gnuabi64.rs new file mode 100644 index 000000000..e0d5f6f57 --- /dev/null +++ b/compiler/rustc_target/src/spec/mips64el_unknown_linux_gnuabi64.rs @@ -0,0 +1,20 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "mips64el-unknown-linux-gnuabi64".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128".into(), + arch: "mips64".into(), + options: TargetOptions { + abi: "abi64".into(), + // NOTE(mips64r2) matches C toolchain + cpu: "mips64r2".into(), + features: "+mips64r2".into(), + max_atomic_width: Some(64), + mcount: "_mcount".into(), + + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/mips64el_unknown_linux_muslabi64.rs b/compiler/rustc_target/src/spec/mips64el_unknown_linux_muslabi64.rs new file mode 100644 index 000000000..75575eb7e --- /dev/null +++ b/compiler/rustc_target/src/spec/mips64el_unknown_linux_muslabi64.rs @@ -0,0 +1,16 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_musl_base::opts(); + base.cpu = "mips64r2".into(); + base.features = "+mips64r2".into(); + base.max_atomic_width = Some(64); + Target { + // LLVM doesn't recognize "muslabi64" yet. + llvm_target: "mips64el-unknown-linux-musl".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128".into(), + arch: "mips64".into(), + options: TargetOptions { abi: "abi64".into(), mcount: "_mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/mips_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/mips_unknown_linux_gnu.rs new file mode 100644 index 000000000..8df8b0b4c --- /dev/null +++ b/compiler/rustc_target/src/spec/mips_unknown_linux_gnu.rs @@ -0,0 +1,20 @@ +use crate::abi::Endian; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "mips-unknown-linux-gnu".into(), + pointer_width: 32, + data_layout: "E-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64".into(), + arch: "mips".into(), + options: TargetOptions { + endian: Endian::Big, + cpu: "mips32r2".into(), + features: "+mips32r2,+fpxx,+nooddspreg".into(), + max_atomic_width: Some(32), + mcount: "_mcount".into(), + + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/mips_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/mips_unknown_linux_musl.rs new file mode 100644 index 000000000..c2846313a --- /dev/null +++ b/compiler/rustc_target/src/spec/mips_unknown_linux_musl.rs @@ -0,0 +1,17 @@ +use crate::abi::Endian; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_musl_base::opts(); + base.cpu = "mips32r2".into(); + base.features = "+mips32r2,+soft-float".into(); + base.max_atomic_width = Some(32); + base.crt_static_default = false; + Target { + llvm_target: "mips-unknown-linux-musl".into(), + pointer_width: 32, + data_layout: "E-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64".into(), + arch: "mips".into(), + options: TargetOptions { endian: Endian::Big, mcount: "_mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/mips_unknown_linux_uclibc.rs b/compiler/rustc_target/src/spec/mips_unknown_linux_uclibc.rs new file mode 100644 index 000000000..c59bb5fdd --- /dev/null +++ b/compiler/rustc_target/src/spec/mips_unknown_linux_uclibc.rs @@ -0,0 +1,20 @@ +use crate::abi::Endian; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "mips-unknown-linux-uclibc".into(), + pointer_width: 32, + data_layout: "E-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64".into(), + arch: "mips".into(), + options: TargetOptions { + endian: Endian::Big, + cpu: "mips32r2".into(), + features: "+mips32r2,+soft-float".into(), + max_atomic_width: Some(32), + mcount: "_mcount".into(), + + ..super::linux_uclibc_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/mipsel_sony_psp.rs b/compiler/rustc_target/src/spec/mipsel_sony_psp.rs new file mode 100644 index 000000000..cfc8ec21c --- /dev/null +++ b/compiler/rustc_target/src/spec/mipsel_sony_psp.rs @@ -0,0 +1,34 @@ +use crate::spec::{cvs, Target, TargetOptions}; +use crate::spec::{LinkerFlavor, LldFlavor, RelocModel}; + +// The PSP has custom linker requirements. +const LINKER_SCRIPT: &str = include_str!("./mipsel_sony_psp_linker_script.ld"); + +pub fn target() -> Target { + let pre_link_args = TargetOptions::link_args(LinkerFlavor::Ld, &["--emit-relocs", "--nmagic"]); + + Target { + llvm_target: "mipsel-sony-psp".into(), + pointer_width: 32, + data_layout: "e-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64".into(), + arch: "mips".into(), + + options: TargetOptions { + os: "psp".into(), + vendor: "sony".into(), + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + cpu: "mips2".into(), + linker: Some("rust-lld".into()), + relocation_model: RelocModel::Static, + + // PSP FPU only supports single precision floats. + features: "+single-float".into(), + + // PSP does not support trap-on-condition instructions. + llvm_args: cvs!["-mno-check-zero-division"], + pre_link_args, + link_script: Some(LINKER_SCRIPT.into()), + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/mipsel_sony_psp_linker_script.ld b/compiler/rustc_target/src/spec/mipsel_sony_psp_linker_script.ld new file mode 100644 index 000000000..9eb35ad9f --- /dev/null +++ b/compiler/rustc_target/src/spec/mipsel_sony_psp_linker_script.ld @@ -0,0 +1,45 @@ +ENTRY(module_start) +SECTIONS +{ + /* PRX format requires text to begin at 0 */ + .text 0 : { *(.text .text.*) } + + /* Sort stubs for convenient ordering */ + .sceStub.text : { *(.sceStub.text) *(SORT(.sceStub.text.*)) } + + /* PSP import library stub sections. Bundles together `.lib.stub.entry.*` + * sections for better `--gc-sections` support. */ + .lib.stub.top : { *(.lib.stub.top) } + .lib.stub : { *(.lib.stub) *(.lib.stub.entry.*) } + .lib.stub.btm : { *(.lib.stub.btm) } + + /* Keep these sections around, even though they may appear unused to the linker */ + .lib.ent.top : { KEEP(*(.lib.ent.top)) } + .lib.ent : { KEEP(*(.lib.ent)) } + .lib.ent.btm : { KEEP(*(.lib.ent.btm)) } + + .eh_frame_hdr : { *(.eh_frame_hdr) } + + /* Add symbols for LLVM's libunwind */ + __eh_frame_hdr_start = SIZEOF(.eh_frame_hdr) > 0 ? ADDR(.eh_frame_hdr) : 0; + __eh_frame_hdr_end = SIZEOF(.eh_frame_hdr) > 0 ? . : 0; + .eh_frame : + { + __eh_frame_start = .; + KEEP(*(.eh_frame)) + __eh_frame_end = .; + } + + /* These are explicitly listed to avoid being merged into .rodata */ + .rodata.sceResident : { *(.rodata.sceResident) *(.rodata.sceResident.*) } + .rodata.sceModuleInfo : { *(.rodata.sceModuleInfo) } + /* Sort NIDs for convenient ordering */ + .rodata.sceNid : { *(.rodata.sceNid) *(SORT(.rodata.sceNid.*)) } + + .rodata : { *(.rodata .rodata.*) } + .data : { *(.data .data.*) } + .gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) } + .bss : { *(.bss .bss.*) } + + /DISCARD/ : { *(.rel.sceStub.text .MIPS.abiflags .reginfo) } +} diff --git a/compiler/rustc_target/src/spec/mipsel_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/mipsel_unknown_linux_gnu.rs new file mode 100644 index 000000000..01346e71a --- /dev/null +++ b/compiler/rustc_target/src/spec/mipsel_unknown_linux_gnu.rs @@ -0,0 +1,19 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "mipsel-unknown-linux-gnu".into(), + pointer_width: 32, + data_layout: "e-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64".into(), + arch: "mips".into(), + + options: TargetOptions { + cpu: "mips32r2".into(), + features: "+mips32r2,+fpxx,+nooddspreg".into(), + max_atomic_width: Some(32), + mcount: "_mcount".into(), + + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/mipsel_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/mipsel_unknown_linux_musl.rs new file mode 100644 index 000000000..0e8f1a2c8 --- /dev/null +++ b/compiler/rustc_target/src/spec/mipsel_unknown_linux_musl.rs @@ -0,0 +1,16 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_musl_base::opts(); + base.cpu = "mips32r2".into(); + base.features = "+mips32r2,+soft-float".into(); + base.max_atomic_width = Some(32); + base.crt_static_default = false; + Target { + llvm_target: "mipsel-unknown-linux-musl".into(), + pointer_width: 32, + data_layout: "e-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64".into(), + arch: "mips".into(), + options: TargetOptions { mcount: "_mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/mipsel_unknown_linux_uclibc.rs b/compiler/rustc_target/src/spec/mipsel_unknown_linux_uclibc.rs new file mode 100644 index 000000000..834207458 --- /dev/null +++ b/compiler/rustc_target/src/spec/mipsel_unknown_linux_uclibc.rs @@ -0,0 +1,19 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "mipsel-unknown-linux-uclibc".into(), + pointer_width: 32, + data_layout: "e-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64".into(), + arch: "mips".into(), + + options: TargetOptions { + cpu: "mips32r2".into(), + features: "+mips32r2,+soft-float".into(), + max_atomic_width: Some(32), + mcount: "_mcount".into(), + + ..super::linux_uclibc_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/mipsel_unknown_none.rs b/compiler/rustc_target/src/spec/mipsel_unknown_none.rs new file mode 100644 index 000000000..fe2aa2de8 --- /dev/null +++ b/compiler/rustc_target/src/spec/mipsel_unknown_none.rs @@ -0,0 +1,27 @@ +//! Bare MIPS32r2, little endian, softfloat, O32 calling convention +//! +//! Can be used for MIPS M4K core (e.g. on PIC32MX devices) + +use crate::spec::{LinkerFlavor, LldFlavor, RelocModel}; +use crate::spec::{PanicStrategy, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "mipsel-unknown-none".into(), + pointer_width: 32, + data_layout: "e-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64".into(), + arch: "mips".into(), + + options: TargetOptions { + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + cpu: "mips32r2".into(), + features: "+mips32r2,+soft-float,+noabicalls".into(), + max_atomic_width: Some(32), + linker: Some("rust-lld".into()), + panic_strategy: PanicStrategy::Abort, + relocation_model: RelocModel::Static, + emit_debug_gdb_scripts: false, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/mipsisa32r6_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/mipsisa32r6_unknown_linux_gnu.rs new file mode 100644 index 000000000..1e066b271 --- /dev/null +++ b/compiler/rustc_target/src/spec/mipsisa32r6_unknown_linux_gnu.rs @@ -0,0 +1,20 @@ +use crate::abi::Endian; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "mipsisa32r6-unknown-linux-gnu".into(), + pointer_width: 32, + data_layout: "E-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64".into(), + arch: "mips".into(), + options: TargetOptions { + endian: Endian::Big, + cpu: "mips32r6".into(), + features: "+mips32r6".into(), + max_atomic_width: Some(32), + mcount: "_mcount".into(), + + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/mipsisa32r6el_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/mipsisa32r6el_unknown_linux_gnu.rs new file mode 100644 index 000000000..4785929c1 --- /dev/null +++ b/compiler/rustc_target/src/spec/mipsisa32r6el_unknown_linux_gnu.rs @@ -0,0 +1,19 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "mipsisa32r6el-unknown-linux-gnu".into(), + pointer_width: 32, + data_layout: "e-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64".into(), + arch: "mips".into(), + + options: TargetOptions { + cpu: "mips32r6".into(), + features: "+mips32r6".into(), + max_atomic_width: Some(32), + mcount: "_mcount".into(), + + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/mipsisa64r6_unknown_linux_gnuabi64.rs b/compiler/rustc_target/src/spec/mipsisa64r6_unknown_linux_gnuabi64.rs new file mode 100644 index 000000000..766ac7680 --- /dev/null +++ b/compiler/rustc_target/src/spec/mipsisa64r6_unknown_linux_gnuabi64.rs @@ -0,0 +1,22 @@ +use crate::abi::Endian; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "mipsisa64r6-unknown-linux-gnuabi64".into(), + pointer_width: 64, + data_layout: "E-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128".into(), + arch: "mips64".into(), + options: TargetOptions { + abi: "abi64".into(), + endian: Endian::Big, + // NOTE(mips64r6) matches C toolchain + cpu: "mips64r6".into(), + features: "+mips64r6".into(), + max_atomic_width: Some(64), + mcount: "_mcount".into(), + + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/mipsisa64r6el_unknown_linux_gnuabi64.rs b/compiler/rustc_target/src/spec/mipsisa64r6el_unknown_linux_gnuabi64.rs new file mode 100644 index 000000000..d2b07c654 --- /dev/null +++ b/compiler/rustc_target/src/spec/mipsisa64r6el_unknown_linux_gnuabi64.rs @@ -0,0 +1,20 @@ +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "mipsisa64r6el-unknown-linux-gnuabi64".into(), + pointer_width: 64, + data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128".into(), + arch: "mips64".into(), + options: TargetOptions { + abi: "abi64".into(), + // NOTE(mips64r6) matches C toolchain + cpu: "mips64r6".into(), + features: "+mips64r6".into(), + max_atomic_width: Some(64), + mcount: "_mcount".into(), + + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs new file mode 100644 index 000000000..f7abeafd3 --- /dev/null +++ b/compiler/rustc_target/src/spec/mod.rs @@ -0,0 +1,2585 @@ +//! [Flexible target specification.](https://github.com/rust-lang/rfcs/pull/131) +//! +//! Rust targets a wide variety of usecases, and in the interest of flexibility, +//! allows new target triples to be defined in configuration files. Most users +//! will not need to care about these, but this is invaluable when porting Rust +//! to a new platform, and allows for an unprecedented level of control over how +//! the compiler works. +//! +//! # Using custom targets +//! +//! A target triple, as passed via `rustc --target=TRIPLE`, will first be +//! compared against the list of built-in targets. This is to ease distributing +//! rustc (no need for configuration files) and also to hold these built-in +//! targets as immutable and sacred. If `TRIPLE` is not one of the built-in +//! targets, rustc will check if a file named `TRIPLE` exists. If it does, it +//! will be loaded as the target configuration. If the file does not exist, +//! rustc will search each directory in the environment variable +//! `RUST_TARGET_PATH` for a file named `TRIPLE.json`. The first one found will +//! be loaded. If no file is found in any of those directories, a fatal error +//! will be given. +//! +//! Projects defining their own targets should use +//! `--target=path/to/my-awesome-platform.json` instead of adding to +//! `RUST_TARGET_PATH`. +//! +//! # Defining a new target +//! +//! Targets are defined using [JSON](https://json.org/). The `Target` struct in +//! this module defines the format the JSON file should take, though each +//! underscore in the field names should be replaced with a hyphen (`-`) in the +//! JSON file. Some fields are required in every target specification, such as +//! `llvm-target`, `target-endian`, `target-pointer-width`, `data-layout`, +//! `arch`, and `os`. In general, options passed to rustc with `-C` override +//! the target's settings, though `target-feature` and `link-args` will *add* +//! to the list specified by the target, rather than replace. + +use crate::abi::Endian; +use crate::json::{Json, ToJson}; +use crate::spec::abi::{lookup as lookup_abi, Abi}; +use crate::spec::crt_objects::{CrtObjects, CrtObjectsFallback}; +use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; +use rustc_serialize::{Decodable, Decoder, Encodable, Encoder}; +use rustc_span::symbol::{sym, Symbol}; +use serde_json::Value; +use std::borrow::Cow; +use std::collections::BTreeMap; +use std::convert::TryFrom; +use std::hash::{Hash, Hasher}; +use std::iter::FromIterator; +use std::ops::{Deref, DerefMut}; +use std::path::{Path, PathBuf}; +use std::str::FromStr; +use std::{fmt, io}; + +use rustc_macros::HashStable_Generic; + +pub mod abi; +pub mod crt_objects; + +mod android_base; +mod apple_base; +mod apple_sdk_base; +mod avr_gnu_base; +mod bpf_base; +mod dragonfly_base; +mod freebsd_base; +mod fuchsia_base; +mod haiku_base; +mod hermit_base; +mod illumos_base; +mod l4re_base; +mod linux_base; +mod linux_gnu_base; +mod linux_kernel_base; +mod linux_musl_base; +mod linux_uclibc_base; +mod msvc_base; +mod netbsd_base; +mod openbsd_base; +mod redox_base; +mod solaris_base; +mod solid_base; +mod thumb_base; +mod uefi_msvc_base; +mod vxworks_base; +mod wasm_base; +mod windows_gnu_base; +mod windows_gnullvm_base; +mod windows_msvc_base; +mod windows_uwp_gnu_base; +mod windows_uwp_msvc_base; + +#[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)] +pub enum LinkerFlavor { + Em, + Gcc, + L4Bender, + Ld, + Msvc, + Lld(LldFlavor), + PtxLinker, + BpfLinker, +} + +#[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)] +pub enum LldFlavor { + Wasm, + Ld64, + Ld, + Link, +} + +impl LldFlavor { + pub fn as_str(&self) -> &'static str { + match self { + LldFlavor::Wasm => "wasm", + LldFlavor::Ld64 => "darwin", + LldFlavor::Ld => "gnu", + LldFlavor::Link => "link", + } + } + + fn from_str(s: &str) -> Option<Self> { + Some(match s { + "darwin" => LldFlavor::Ld64, + "gnu" => LldFlavor::Ld, + "link" => LldFlavor::Link, + "wasm" => LldFlavor::Wasm, + _ => return None, + }) + } +} + +impl ToJson for LldFlavor { + fn to_json(&self) -> Json { + self.as_str().to_json() + } +} + +impl ToJson for LinkerFlavor { + fn to_json(&self) -> Json { + self.desc().to_json() + } +} +macro_rules! flavor_mappings { + ($((($($flavor:tt)*), $string:expr),)*) => ( + impl LinkerFlavor { + pub const fn one_of() -> &'static str { + concat!("one of: ", $($string, " ",)*) + } + + pub fn from_str(s: &str) -> Option<Self> { + Some(match s { + $($string => $($flavor)*,)* + _ => return None, + }) + } + + pub fn desc(&self) -> &str { + match *self { + $($($flavor)* => $string,)* + } + } + } + ) +} + +flavor_mappings! { + ((LinkerFlavor::Em), "em"), + ((LinkerFlavor::Gcc), "gcc"), + ((LinkerFlavor::L4Bender), "l4-bender"), + ((LinkerFlavor::Ld), "ld"), + ((LinkerFlavor::Msvc), "msvc"), + ((LinkerFlavor::PtxLinker), "ptx-linker"), + ((LinkerFlavor::BpfLinker), "bpf-linker"), + ((LinkerFlavor::Lld(LldFlavor::Wasm)), "wasm-ld"), + ((LinkerFlavor::Lld(LldFlavor::Ld64)), "ld64.lld"), + ((LinkerFlavor::Lld(LldFlavor::Ld)), "ld.lld"), + ((LinkerFlavor::Lld(LldFlavor::Link)), "lld-link"), +} + +#[derive(Clone, Copy, Debug, PartialEq, Hash, Encodable, Decodable, HashStable_Generic)] +pub enum PanicStrategy { + Unwind, + Abort, +} + +impl PanicStrategy { + pub fn desc(&self) -> &str { + match *self { + PanicStrategy::Unwind => "unwind", + PanicStrategy::Abort => "abort", + } + } + + pub const fn desc_symbol(&self) -> Symbol { + match *self { + PanicStrategy::Unwind => sym::unwind, + PanicStrategy::Abort => sym::abort, + } + } + + pub const fn all() -> [Symbol; 2] { + [Self::Abort.desc_symbol(), Self::Unwind.desc_symbol()] + } +} + +impl ToJson for PanicStrategy { + fn to_json(&self) -> Json { + match *self { + PanicStrategy::Abort => "abort".to_json(), + PanicStrategy::Unwind => "unwind".to_json(), + } + } +} + +#[derive(Clone, Copy, Debug, PartialEq, Hash)] +pub enum RelroLevel { + Full, + Partial, + Off, + None, +} + +impl RelroLevel { + pub fn desc(&self) -> &str { + match *self { + RelroLevel::Full => "full", + RelroLevel::Partial => "partial", + RelroLevel::Off => "off", + RelroLevel::None => "none", + } + } +} + +impl FromStr for RelroLevel { + type Err = (); + + fn from_str(s: &str) -> Result<RelroLevel, ()> { + match s { + "full" => Ok(RelroLevel::Full), + "partial" => Ok(RelroLevel::Partial), + "off" => Ok(RelroLevel::Off), + "none" => Ok(RelroLevel::None), + _ => Err(()), + } + } +} + +impl ToJson for RelroLevel { + fn to_json(&self) -> Json { + match *self { + RelroLevel::Full => "full".to_json(), + RelroLevel::Partial => "partial".to_json(), + RelroLevel::Off => "off".to_json(), + RelroLevel::None => "None".to_json(), + } + } +} + +#[derive(Clone, Copy, Debug, PartialEq, Hash)] +pub enum MergeFunctions { + Disabled, + Trampolines, + Aliases, +} + +impl MergeFunctions { + pub fn desc(&self) -> &str { + match *self { + MergeFunctions::Disabled => "disabled", + MergeFunctions::Trampolines => "trampolines", + MergeFunctions::Aliases => "aliases", + } + } +} + +impl FromStr for MergeFunctions { + type Err = (); + + fn from_str(s: &str) -> Result<MergeFunctions, ()> { + match s { + "disabled" => Ok(MergeFunctions::Disabled), + "trampolines" => Ok(MergeFunctions::Trampolines), + "aliases" => Ok(MergeFunctions::Aliases), + _ => Err(()), + } + } +} + +impl ToJson for MergeFunctions { + fn to_json(&self) -> Json { + match *self { + MergeFunctions::Disabled => "disabled".to_json(), + MergeFunctions::Trampolines => "trampolines".to_json(), + MergeFunctions::Aliases => "aliases".to_json(), + } + } +} + +#[derive(Clone, Copy, PartialEq, Hash, Debug)] +pub enum RelocModel { + Static, + Pic, + Pie, + DynamicNoPic, + Ropi, + Rwpi, + RopiRwpi, +} + +impl FromStr for RelocModel { + type Err = (); + + fn from_str(s: &str) -> Result<RelocModel, ()> { + Ok(match s { + "static" => RelocModel::Static, + "pic" => RelocModel::Pic, + "pie" => RelocModel::Pie, + "dynamic-no-pic" => RelocModel::DynamicNoPic, + "ropi" => RelocModel::Ropi, + "rwpi" => RelocModel::Rwpi, + "ropi-rwpi" => RelocModel::RopiRwpi, + _ => return Err(()), + }) + } +} + +impl ToJson for RelocModel { + fn to_json(&self) -> Json { + match *self { + RelocModel::Static => "static", + RelocModel::Pic => "pic", + RelocModel::Pie => "pie", + RelocModel::DynamicNoPic => "dynamic-no-pic", + RelocModel::Ropi => "ropi", + RelocModel::Rwpi => "rwpi", + RelocModel::RopiRwpi => "ropi-rwpi", + } + .to_json() + } +} + +#[derive(Clone, Copy, PartialEq, Hash, Debug)] +pub enum CodeModel { + Tiny, + Small, + Kernel, + Medium, + Large, +} + +impl FromStr for CodeModel { + type Err = (); + + fn from_str(s: &str) -> Result<CodeModel, ()> { + Ok(match s { + "tiny" => CodeModel::Tiny, + "small" => CodeModel::Small, + "kernel" => CodeModel::Kernel, + "medium" => CodeModel::Medium, + "large" => CodeModel::Large, + _ => return Err(()), + }) + } +} + +impl ToJson for CodeModel { + fn to_json(&self) -> Json { + match *self { + CodeModel::Tiny => "tiny", + CodeModel::Small => "small", + CodeModel::Kernel => "kernel", + CodeModel::Medium => "medium", + CodeModel::Large => "large", + } + .to_json() + } +} + +#[derive(Clone, Copy, PartialEq, Hash, Debug)] +pub enum TlsModel { + GeneralDynamic, + LocalDynamic, + InitialExec, + LocalExec, +} + +impl FromStr for TlsModel { + type Err = (); + + fn from_str(s: &str) -> Result<TlsModel, ()> { + Ok(match s { + // Note the difference "general" vs "global" difference. The model name is "general", + // but the user-facing option name is "global" for consistency with other compilers. + "global-dynamic" => TlsModel::GeneralDynamic, + "local-dynamic" => TlsModel::LocalDynamic, + "initial-exec" => TlsModel::InitialExec, + "local-exec" => TlsModel::LocalExec, + _ => return Err(()), + }) + } +} + +impl ToJson for TlsModel { + fn to_json(&self) -> Json { + match *self { + TlsModel::GeneralDynamic => "global-dynamic", + TlsModel::LocalDynamic => "local-dynamic", + TlsModel::InitialExec => "initial-exec", + TlsModel::LocalExec => "local-exec", + } + .to_json() + } +} + +/// Everything is flattened to a single enum to make the json encoding/decoding less annoying. +#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Debug)] +pub enum LinkOutputKind { + /// Dynamically linked non position-independent executable. + DynamicNoPicExe, + /// Dynamically linked position-independent executable. + DynamicPicExe, + /// Statically linked non position-independent executable. + StaticNoPicExe, + /// Statically linked position-independent executable. + StaticPicExe, + /// Regular dynamic library ("dynamically linked"). + DynamicDylib, + /// Dynamic library with bundled libc ("statically linked"). + StaticDylib, + /// WASI module with a lifetime past the _initialize entry point + WasiReactorExe, +} + +impl LinkOutputKind { + fn as_str(&self) -> &'static str { + match self { + LinkOutputKind::DynamicNoPicExe => "dynamic-nopic-exe", + LinkOutputKind::DynamicPicExe => "dynamic-pic-exe", + LinkOutputKind::StaticNoPicExe => "static-nopic-exe", + LinkOutputKind::StaticPicExe => "static-pic-exe", + LinkOutputKind::DynamicDylib => "dynamic-dylib", + LinkOutputKind::StaticDylib => "static-dylib", + LinkOutputKind::WasiReactorExe => "wasi-reactor-exe", + } + } + + pub(super) fn from_str(s: &str) -> Option<LinkOutputKind> { + Some(match s { + "dynamic-nopic-exe" => LinkOutputKind::DynamicNoPicExe, + "dynamic-pic-exe" => LinkOutputKind::DynamicPicExe, + "static-nopic-exe" => LinkOutputKind::StaticNoPicExe, + "static-pic-exe" => LinkOutputKind::StaticPicExe, + "dynamic-dylib" => LinkOutputKind::DynamicDylib, + "static-dylib" => LinkOutputKind::StaticDylib, + "wasi-reactor-exe" => LinkOutputKind::WasiReactorExe, + _ => return None, + }) + } +} + +impl fmt::Display for LinkOutputKind { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.write_str(self.as_str()) + } +} + +pub type LinkArgs = BTreeMap<LinkerFlavor, Vec<StaticCow<str>>>; + +#[derive(Clone, Copy, Hash, Debug, PartialEq, Eq)] +pub enum SplitDebuginfo { + /// Split debug-information is disabled, meaning that on supported platforms + /// you can find all debug information in the executable itself. This is + /// only supported for ELF effectively. + /// + /// * Windows - not supported + /// * macOS - don't run `dsymutil` + /// * ELF - `.dwarf_*` sections + Off, + + /// Split debug-information can be found in a "packed" location separate + /// from the final artifact. This is supported on all platforms. + /// + /// * Windows - `*.pdb` + /// * macOS - `*.dSYM` (run `dsymutil`) + /// * ELF - `*.dwp` (run `rust-llvm-dwp`) + Packed, + + /// Split debug-information can be found in individual object files on the + /// filesystem. The main executable may point to the object files. + /// + /// * Windows - not supported + /// * macOS - supported, scattered object files + /// * ELF - supported, scattered `*.dwo` or `*.o` files (see `SplitDwarfKind`) + Unpacked, +} + +impl SplitDebuginfo { + fn as_str(&self) -> &'static str { + match self { + SplitDebuginfo::Off => "off", + SplitDebuginfo::Packed => "packed", + SplitDebuginfo::Unpacked => "unpacked", + } + } +} + +impl FromStr for SplitDebuginfo { + type Err = (); + + fn from_str(s: &str) -> Result<SplitDebuginfo, ()> { + Ok(match s { + "off" => SplitDebuginfo::Off, + "unpacked" => SplitDebuginfo::Unpacked, + "packed" => SplitDebuginfo::Packed, + _ => return Err(()), + }) + } +} + +impl ToJson for SplitDebuginfo { + fn to_json(&self) -> Json { + self.as_str().to_json() + } +} + +impl fmt::Display for SplitDebuginfo { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.write_str(self.as_str()) + } +} + +#[derive(Clone, Debug, PartialEq, Eq)] +pub enum StackProbeType { + /// Don't emit any stack probes. + None, + /// It is harmless to use this option even on targets that do not have backend support for + /// stack probes as the failure mode is the same as if no stack-probe option was specified in + /// the first place. + Inline, + /// Call `__rust_probestack` whenever stack needs to be probed. + Call, + /// Use inline option for LLVM versions later than specified in `min_llvm_version_for_inline` + /// and call `__rust_probestack` otherwise. + InlineOrCall { min_llvm_version_for_inline: (u32, u32, u32) }, +} + +impl StackProbeType { + fn from_json(json: &Json) -> Result<Self, String> { + let object = json.as_object().ok_or_else(|| "expected a JSON object")?; + let kind = object + .get("kind") + .and_then(|o| o.as_str()) + .ok_or_else(|| "expected `kind` to be a string")?; + match kind { + "none" => Ok(StackProbeType::None), + "inline" => Ok(StackProbeType::Inline), + "call" => Ok(StackProbeType::Call), + "inline-or-call" => { + let min_version = object + .get("min-llvm-version-for-inline") + .and_then(|o| o.as_array()) + .ok_or_else(|| "expected `min-llvm-version-for-inline` to be an array")?; + let mut iter = min_version.into_iter().map(|v| { + let int = v.as_u64().ok_or_else( + || "expected `min-llvm-version-for-inline` values to be integers", + )?; + u32::try_from(int) + .map_err(|_| "`min-llvm-version-for-inline` values don't convert to u32") + }); + let min_llvm_version_for_inline = ( + iter.next().unwrap_or(Ok(11))?, + iter.next().unwrap_or(Ok(0))?, + iter.next().unwrap_or(Ok(0))?, + ); + Ok(StackProbeType::InlineOrCall { min_llvm_version_for_inline }) + } + _ => Err(String::from( + "`kind` expected to be one of `none`, `inline`, `call` or `inline-or-call`", + )), + } + } +} + +impl ToJson for StackProbeType { + fn to_json(&self) -> Json { + Json::Object(match self { + StackProbeType::None => { + [(String::from("kind"), "none".to_json())].into_iter().collect() + } + StackProbeType::Inline => { + [(String::from("kind"), "inline".to_json())].into_iter().collect() + } + StackProbeType::Call => { + [(String::from("kind"), "call".to_json())].into_iter().collect() + } + StackProbeType::InlineOrCall { min_llvm_version_for_inline: (maj, min, patch) } => [ + (String::from("kind"), "inline-or-call".to_json()), + ( + String::from("min-llvm-version-for-inline"), + Json::Array(vec![maj.to_json(), min.to_json(), patch.to_json()]), + ), + ] + .into_iter() + .collect(), + }) + } +} + +bitflags::bitflags! { + #[derive(Default, Encodable, Decodable)] + pub struct SanitizerSet: u8 { + const ADDRESS = 1 << 0; + const LEAK = 1 << 1; + const MEMORY = 1 << 2; + const THREAD = 1 << 3; + const HWADDRESS = 1 << 4; + const CFI = 1 << 5; + const MEMTAG = 1 << 6; + const SHADOWCALLSTACK = 1 << 7; + } +} + +impl SanitizerSet { + /// Return sanitizer's name + /// + /// Returns none if the flags is a set of sanitizers numbering not exactly one. + pub fn as_str(self) -> Option<&'static str> { + Some(match self { + SanitizerSet::ADDRESS => "address", + SanitizerSet::CFI => "cfi", + SanitizerSet::LEAK => "leak", + SanitizerSet::MEMORY => "memory", + SanitizerSet::MEMTAG => "memtag", + SanitizerSet::SHADOWCALLSTACK => "shadow-call-stack", + SanitizerSet::THREAD => "thread", + SanitizerSet::HWADDRESS => "hwaddress", + _ => return None, + }) + } +} + +/// Formats a sanitizer set as a comma separated list of sanitizers' names. +impl fmt::Display for SanitizerSet { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + let mut first = true; + for s in *self { + let name = s.as_str().unwrap_or_else(|| panic!("unrecognized sanitizer {:?}", s)); + if !first { + f.write_str(", ")?; + } + f.write_str(name)?; + first = false; + } + Ok(()) + } +} + +impl IntoIterator for SanitizerSet { + type Item = SanitizerSet; + type IntoIter = std::vec::IntoIter<SanitizerSet>; + + fn into_iter(self) -> Self::IntoIter { + [ + SanitizerSet::ADDRESS, + SanitizerSet::CFI, + SanitizerSet::LEAK, + SanitizerSet::MEMORY, + SanitizerSet::MEMTAG, + SanitizerSet::SHADOWCALLSTACK, + SanitizerSet::THREAD, + SanitizerSet::HWADDRESS, + ] + .iter() + .copied() + .filter(|&s| self.contains(s)) + .collect::<Vec<_>>() + .into_iter() + } +} + +impl<CTX> HashStable<CTX> for SanitizerSet { + fn hash_stable(&self, ctx: &mut CTX, hasher: &mut StableHasher) { + self.bits().hash_stable(ctx, hasher); + } +} + +impl ToJson for SanitizerSet { + fn to_json(&self) -> Json { + self.into_iter() + .map(|v| Some(v.as_str()?.to_json())) + .collect::<Option<Vec<_>>>() + .unwrap_or_default() + .to_json() + } +} + +#[derive(Clone, Copy, PartialEq, Hash, Debug)] +pub enum FramePointer { + /// Forces the machine code generator to always preserve the frame pointers. + Always, + /// Forces the machine code generator to preserve the frame pointers except for the leaf + /// functions (i.e. those that don't call other functions). + NonLeaf, + /// Allows the machine code generator to omit the frame pointers. + /// + /// This option does not guarantee that the frame pointers will be omitted. + MayOmit, +} + +impl FromStr for FramePointer { + type Err = (); + fn from_str(s: &str) -> Result<Self, ()> { + Ok(match s { + "always" => Self::Always, + "non-leaf" => Self::NonLeaf, + "may-omit" => Self::MayOmit, + _ => return Err(()), + }) + } +} + +impl ToJson for FramePointer { + fn to_json(&self) -> Json { + match *self { + Self::Always => "always", + Self::NonLeaf => "non-leaf", + Self::MayOmit => "may-omit", + } + .to_json() + } +} + +/// Controls use of stack canaries. +#[derive(Clone, Copy, Debug, PartialEq, Hash, Eq)] +pub enum StackProtector { + /// Disable stack canary generation. + None, + + /// On LLVM, mark all generated LLVM functions with the `ssp` attribute (see + /// llvm/docs/LangRef.rst). This triggers stack canary generation in + /// functions which contain an array of a byte-sized type with more than + /// eight elements. + Basic, + + /// On LLVM, mark all generated LLVM functions with the `sspstrong` + /// attribute (see llvm/docs/LangRef.rst). This triggers stack canary + /// generation in functions which either contain an array, or which take + /// the address of a local variable. + Strong, + + /// Generate stack canaries in all functions. + All, +} + +impl StackProtector { + fn as_str(&self) -> &'static str { + match self { + StackProtector::None => "none", + StackProtector::Basic => "basic", + StackProtector::Strong => "strong", + StackProtector::All => "all", + } + } +} + +impl FromStr for StackProtector { + type Err = (); + + fn from_str(s: &str) -> Result<StackProtector, ()> { + Ok(match s { + "none" => StackProtector::None, + "basic" => StackProtector::Basic, + "strong" => StackProtector::Strong, + "all" => StackProtector::All, + _ => return Err(()), + }) + } +} + +impl fmt::Display for StackProtector { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.write_str(self.as_str()) + } +} + +macro_rules! supported_targets { + ( $(($( $triple:literal, )+ $module:ident ),)+ ) => { + $(mod $module;)+ + + /// List of supported targets + pub const TARGETS: &[&str] = &[$($($triple),+),+]; + + fn load_builtin(target: &str) -> Option<Target> { + let mut t = match target { + $( $($triple)|+ => $module::target(), )+ + _ => return None, + }; + t.is_builtin = true; + debug!("got builtin target: {:?}", t); + Some(t) + } + + #[cfg(test)] + mod tests { + mod tests_impl; + + // Cannot put this into a separate file without duplication, make an exception. + $( + #[test] // `#[test]` + fn $module() { + tests_impl::test_target(super::$module::target()); + } + )+ + } + }; +} + +supported_targets! { + ("x86_64-unknown-linux-gnu", x86_64_unknown_linux_gnu), + ("x86_64-unknown-linux-gnux32", x86_64_unknown_linux_gnux32), + ("i686-unknown-linux-gnu", i686_unknown_linux_gnu), + ("i586-unknown-linux-gnu", i586_unknown_linux_gnu), + ("m68k-unknown-linux-gnu", m68k_unknown_linux_gnu), + ("mips-unknown-linux-gnu", mips_unknown_linux_gnu), + ("mips64-unknown-linux-gnuabi64", mips64_unknown_linux_gnuabi64), + ("mips64el-unknown-linux-gnuabi64", mips64el_unknown_linux_gnuabi64), + ("mipsisa32r6-unknown-linux-gnu", mipsisa32r6_unknown_linux_gnu), + ("mipsisa32r6el-unknown-linux-gnu", mipsisa32r6el_unknown_linux_gnu), + ("mipsisa64r6-unknown-linux-gnuabi64", mipsisa64r6_unknown_linux_gnuabi64), + ("mipsisa64r6el-unknown-linux-gnuabi64", mipsisa64r6el_unknown_linux_gnuabi64), + ("mipsel-unknown-linux-gnu", mipsel_unknown_linux_gnu), + ("powerpc-unknown-linux-gnu", powerpc_unknown_linux_gnu), + ("powerpc-unknown-linux-gnuspe", powerpc_unknown_linux_gnuspe), + ("powerpc-unknown-linux-musl", powerpc_unknown_linux_musl), + ("powerpc64-unknown-linux-gnu", powerpc64_unknown_linux_gnu), + ("powerpc64-unknown-linux-musl", powerpc64_unknown_linux_musl), + ("powerpc64le-unknown-linux-gnu", powerpc64le_unknown_linux_gnu), + ("powerpc64le-unknown-linux-musl", powerpc64le_unknown_linux_musl), + ("s390x-unknown-linux-gnu", s390x_unknown_linux_gnu), + ("s390x-unknown-linux-musl", s390x_unknown_linux_musl), + ("sparc-unknown-linux-gnu", sparc_unknown_linux_gnu), + ("sparc64-unknown-linux-gnu", sparc64_unknown_linux_gnu), + ("arm-unknown-linux-gnueabi", arm_unknown_linux_gnueabi), + ("arm-unknown-linux-gnueabihf", arm_unknown_linux_gnueabihf), + ("arm-unknown-linux-musleabi", arm_unknown_linux_musleabi), + ("arm-unknown-linux-musleabihf", arm_unknown_linux_musleabihf), + ("armv4t-unknown-linux-gnueabi", armv4t_unknown_linux_gnueabi), + ("armv5te-unknown-linux-gnueabi", armv5te_unknown_linux_gnueabi), + ("armv5te-unknown-linux-musleabi", armv5te_unknown_linux_musleabi), + ("armv5te-unknown-linux-uclibceabi", armv5te_unknown_linux_uclibceabi), + ("armv7-unknown-linux-gnueabi", armv7_unknown_linux_gnueabi), + ("armv7-unknown-linux-gnueabihf", armv7_unknown_linux_gnueabihf), + ("thumbv7neon-unknown-linux-gnueabihf", thumbv7neon_unknown_linux_gnueabihf), + ("thumbv7neon-unknown-linux-musleabihf", thumbv7neon_unknown_linux_musleabihf), + ("armv7-unknown-linux-musleabi", armv7_unknown_linux_musleabi), + ("armv7-unknown-linux-musleabihf", armv7_unknown_linux_musleabihf), + ("aarch64-unknown-linux-gnu", aarch64_unknown_linux_gnu), + ("aarch64-unknown-linux-musl", aarch64_unknown_linux_musl), + ("x86_64-unknown-linux-musl", x86_64_unknown_linux_musl), + ("i686-unknown-linux-musl", i686_unknown_linux_musl), + ("i586-unknown-linux-musl", i586_unknown_linux_musl), + ("mips-unknown-linux-musl", mips_unknown_linux_musl), + ("mipsel-unknown-linux-musl", mipsel_unknown_linux_musl), + ("mips64-unknown-linux-muslabi64", mips64_unknown_linux_muslabi64), + ("mips64el-unknown-linux-muslabi64", mips64el_unknown_linux_muslabi64), + ("hexagon-unknown-linux-musl", hexagon_unknown_linux_musl), + + ("mips-unknown-linux-uclibc", mips_unknown_linux_uclibc), + ("mipsel-unknown-linux-uclibc", mipsel_unknown_linux_uclibc), + + ("i686-linux-android", i686_linux_android), + ("x86_64-linux-android", x86_64_linux_android), + ("arm-linux-androideabi", arm_linux_androideabi), + ("armv7-linux-androideabi", armv7_linux_androideabi), + ("thumbv7neon-linux-androideabi", thumbv7neon_linux_androideabi), + ("aarch64-linux-android", aarch64_linux_android), + + ("x86_64-unknown-none-linuxkernel", x86_64_unknown_none_linuxkernel), + + ("aarch64-unknown-freebsd", aarch64_unknown_freebsd), + ("armv6-unknown-freebsd", armv6_unknown_freebsd), + ("armv7-unknown-freebsd", armv7_unknown_freebsd), + ("i686-unknown-freebsd", i686_unknown_freebsd), + ("powerpc-unknown-freebsd", powerpc_unknown_freebsd), + ("powerpc64-unknown-freebsd", powerpc64_unknown_freebsd), + ("powerpc64le-unknown-freebsd", powerpc64le_unknown_freebsd), + ("riscv64gc-unknown-freebsd", riscv64gc_unknown_freebsd), + ("x86_64-unknown-freebsd", x86_64_unknown_freebsd), + + ("x86_64-unknown-dragonfly", x86_64_unknown_dragonfly), + + ("aarch64-unknown-openbsd", aarch64_unknown_openbsd), + ("i686-unknown-openbsd", i686_unknown_openbsd), + ("sparc64-unknown-openbsd", sparc64_unknown_openbsd), + ("x86_64-unknown-openbsd", x86_64_unknown_openbsd), + ("powerpc-unknown-openbsd", powerpc_unknown_openbsd), + + ("aarch64-unknown-netbsd", aarch64_unknown_netbsd), + ("armv6-unknown-netbsd-eabihf", armv6_unknown_netbsd_eabihf), + ("armv7-unknown-netbsd-eabihf", armv7_unknown_netbsd_eabihf), + ("i686-unknown-netbsd", i686_unknown_netbsd), + ("powerpc-unknown-netbsd", powerpc_unknown_netbsd), + ("sparc64-unknown-netbsd", sparc64_unknown_netbsd), + ("x86_64-unknown-netbsd", x86_64_unknown_netbsd), + + ("i686-unknown-haiku", i686_unknown_haiku), + ("x86_64-unknown-haiku", x86_64_unknown_haiku), + + ("aarch64-apple-darwin", aarch64_apple_darwin), + ("x86_64-apple-darwin", x86_64_apple_darwin), + ("i686-apple-darwin", i686_apple_darwin), + + ("aarch64-fuchsia", aarch64_fuchsia), + ("x86_64-fuchsia", x86_64_fuchsia), + + ("avr-unknown-gnu-atmega328", avr_unknown_gnu_atmega328), + + ("x86_64-unknown-l4re-uclibc", x86_64_unknown_l4re_uclibc), + + ("aarch64-unknown-redox", aarch64_unknown_redox), + ("x86_64-unknown-redox", x86_64_unknown_redox), + + ("i386-apple-ios", i386_apple_ios), + ("x86_64-apple-ios", x86_64_apple_ios), + ("aarch64-apple-ios", aarch64_apple_ios), + ("armv7-apple-ios", armv7_apple_ios), + ("armv7s-apple-ios", armv7s_apple_ios), + ("x86_64-apple-ios-macabi", x86_64_apple_ios_macabi), + ("aarch64-apple-ios-macabi", aarch64_apple_ios_macabi), + ("aarch64-apple-ios-sim", aarch64_apple_ios_sim), + ("aarch64-apple-tvos", aarch64_apple_tvos), + ("x86_64-apple-tvos", x86_64_apple_tvos), + + ("armv7k-apple-watchos", armv7k_apple_watchos), + ("arm64_32-apple-watchos", arm64_32_apple_watchos), + ("x86_64-apple-watchos-sim", x86_64_apple_watchos_sim), + ("aarch64-apple-watchos-sim", aarch64_apple_watchos_sim), + + ("armebv7r-none-eabi", armebv7r_none_eabi), + ("armebv7r-none-eabihf", armebv7r_none_eabihf), + ("armv7r-none-eabi", armv7r_none_eabi), + ("armv7r-none-eabihf", armv7r_none_eabihf), + + ("x86_64-pc-solaris", x86_64_pc_solaris), + ("x86_64-sun-solaris", x86_64_sun_solaris), + ("sparcv9-sun-solaris", sparcv9_sun_solaris), + + ("x86_64-unknown-illumos", x86_64_unknown_illumos), + + ("x86_64-pc-windows-gnu", x86_64_pc_windows_gnu), + ("i686-pc-windows-gnu", i686_pc_windows_gnu), + ("i686-uwp-windows-gnu", i686_uwp_windows_gnu), + ("x86_64-uwp-windows-gnu", x86_64_uwp_windows_gnu), + + ("aarch64-pc-windows-gnullvm", aarch64_pc_windows_gnullvm), + ("x86_64-pc-windows-gnullvm", x86_64_pc_windows_gnullvm), + + ("aarch64-pc-windows-msvc", aarch64_pc_windows_msvc), + ("aarch64-uwp-windows-msvc", aarch64_uwp_windows_msvc), + ("x86_64-pc-windows-msvc", x86_64_pc_windows_msvc), + ("x86_64-uwp-windows-msvc", x86_64_uwp_windows_msvc), + ("i686-pc-windows-msvc", i686_pc_windows_msvc), + ("i686-uwp-windows-msvc", i686_uwp_windows_msvc), + ("i586-pc-windows-msvc", i586_pc_windows_msvc), + ("thumbv7a-pc-windows-msvc", thumbv7a_pc_windows_msvc), + ("thumbv7a-uwp-windows-msvc", thumbv7a_uwp_windows_msvc), + + ("asmjs-unknown-emscripten", asmjs_unknown_emscripten), + ("wasm32-unknown-emscripten", wasm32_unknown_emscripten), + ("wasm32-unknown-unknown", wasm32_unknown_unknown), + ("wasm32-wasi", wasm32_wasi), + ("wasm64-unknown-unknown", wasm64_unknown_unknown), + + ("thumbv6m-none-eabi", thumbv6m_none_eabi), + ("thumbv7m-none-eabi", thumbv7m_none_eabi), + ("thumbv7em-none-eabi", thumbv7em_none_eabi), + ("thumbv7em-none-eabihf", thumbv7em_none_eabihf), + ("thumbv8m.base-none-eabi", thumbv8m_base_none_eabi), + ("thumbv8m.main-none-eabi", thumbv8m_main_none_eabi), + ("thumbv8m.main-none-eabihf", thumbv8m_main_none_eabihf), + + ("armv7a-none-eabi", armv7a_none_eabi), + ("armv7a-none-eabihf", armv7a_none_eabihf), + + ("msp430-none-elf", msp430_none_elf), + + ("aarch64-unknown-hermit", aarch64_unknown_hermit), + ("x86_64-unknown-hermit", x86_64_unknown_hermit), + + ("riscv32i-unknown-none-elf", riscv32i_unknown_none_elf), + ("riscv32im-unknown-none-elf", riscv32im_unknown_none_elf), + ("riscv32imc-unknown-none-elf", riscv32imc_unknown_none_elf), + ("riscv32imc-esp-espidf", riscv32imc_esp_espidf), + ("riscv32imac-unknown-none-elf", riscv32imac_unknown_none_elf), + ("riscv32imac-unknown-xous-elf", riscv32imac_unknown_xous_elf), + ("riscv32gc-unknown-linux-gnu", riscv32gc_unknown_linux_gnu), + ("riscv32gc-unknown-linux-musl", riscv32gc_unknown_linux_musl), + ("riscv64imac-unknown-none-elf", riscv64imac_unknown_none_elf), + ("riscv64gc-unknown-none-elf", riscv64gc_unknown_none_elf), + ("riscv64gc-unknown-linux-gnu", riscv64gc_unknown_linux_gnu), + ("riscv64gc-unknown-linux-musl", riscv64gc_unknown_linux_musl), + + ("aarch64-unknown-none", aarch64_unknown_none), + ("aarch64-unknown-none-softfloat", aarch64_unknown_none_softfloat), + + ("x86_64-fortanix-unknown-sgx", x86_64_fortanix_unknown_sgx), + + ("x86_64-unknown-uefi", x86_64_unknown_uefi), + ("i686-unknown-uefi", i686_unknown_uefi), + ("aarch64-unknown-uefi", aarch64_unknown_uefi), + + ("nvptx64-nvidia-cuda", nvptx64_nvidia_cuda), + + ("i686-wrs-vxworks", i686_wrs_vxworks), + ("x86_64-wrs-vxworks", x86_64_wrs_vxworks), + ("armv7-wrs-vxworks-eabihf", armv7_wrs_vxworks_eabihf), + ("aarch64-wrs-vxworks", aarch64_wrs_vxworks), + ("powerpc-wrs-vxworks", powerpc_wrs_vxworks), + ("powerpc-wrs-vxworks-spe", powerpc_wrs_vxworks_spe), + ("powerpc64-wrs-vxworks", powerpc64_wrs_vxworks), + + ("aarch64-kmc-solid_asp3", aarch64_kmc_solid_asp3), + ("armv7a-kmc-solid_asp3-eabi", armv7a_kmc_solid_asp3_eabi), + ("armv7a-kmc-solid_asp3-eabihf", armv7a_kmc_solid_asp3_eabihf), + + ("mipsel-sony-psp", mipsel_sony_psp), + ("mipsel-unknown-none", mipsel_unknown_none), + ("thumbv4t-none-eabi", thumbv4t_none_eabi), + + ("aarch64_be-unknown-linux-gnu", aarch64_be_unknown_linux_gnu), + ("aarch64-unknown-linux-gnu_ilp32", aarch64_unknown_linux_gnu_ilp32), + ("aarch64_be-unknown-linux-gnu_ilp32", aarch64_be_unknown_linux_gnu_ilp32), + + ("bpfeb-unknown-none", bpfeb_unknown_none), + ("bpfel-unknown-none", bpfel_unknown_none), + + ("armv6k-nintendo-3ds", armv6k_nintendo_3ds), + + ("aarch64-nintendo-switch-freestanding", aarch64_nintendo_switch_freestanding), + + ("armv7-unknown-linux-uclibceabi", armv7_unknown_linux_uclibceabi), + ("armv7-unknown-linux-uclibceabihf", armv7_unknown_linux_uclibceabihf), + + ("x86_64-unknown-none", x86_64_unknown_none), + + ("mips64-openwrt-linux-musl", mips64_openwrt_linux_musl), +} + +/// Cow-Vec-Str: Cow<'static, [Cow<'static, str>]> +macro_rules! cvs { + () => { + ::std::borrow::Cow::Borrowed(&[]) + }; + ($($x:expr),+ $(,)?) => { + ::std::borrow::Cow::Borrowed(&[ + $( + ::std::borrow::Cow::Borrowed($x), + )* + ]) + }; +} + +pub(crate) use cvs; + +/// Warnings encountered when parsing the target `json`. +/// +/// Includes fields that weren't recognized and fields that don't have the expected type. +#[derive(Debug, PartialEq)] +pub struct TargetWarnings { + unused_fields: Vec<String>, + incorrect_type: Vec<String>, +} + +impl TargetWarnings { + pub fn empty() -> Self { + Self { unused_fields: Vec::new(), incorrect_type: Vec::new() } + } + + pub fn warning_messages(&self) -> Vec<String> { + let mut warnings = vec![]; + if !self.unused_fields.is_empty() { + warnings.push(format!( + "target json file contains unused fields: {}", + self.unused_fields.join(", ") + )); + } + if !self.incorrect_type.is_empty() { + warnings.push(format!( + "target json file contains fields whose value doesn't have the correct json type: {}", + self.incorrect_type.join(", ") + )); + } + warnings + } +} + +/// Everything `rustc` knows about how to compile for a specific target. +/// +/// Every field here must be specified, and has no default value. +#[derive(PartialEq, Clone, Debug)] +pub struct Target { + /// Target triple to pass to LLVM. + pub llvm_target: StaticCow<str>, + /// Number of bits in a pointer. Influences the `target_pointer_width` `cfg` variable. + pub pointer_width: u32, + /// Architecture to use for ABI considerations. Valid options include: "x86", + /// "x86_64", "arm", "aarch64", "mips", "powerpc", "powerpc64", and others. + pub arch: StaticCow<str>, + /// [Data layout](https://llvm.org/docs/LangRef.html#data-layout) to pass to LLVM. + pub data_layout: StaticCow<str>, + /// Optional settings with defaults. + pub options: TargetOptions, +} + +pub trait HasTargetSpec { + fn target_spec(&self) -> &Target; +} + +impl HasTargetSpec for Target { + #[inline] + fn target_spec(&self) -> &Target { + self + } +} + +type StaticCow<T> = Cow<'static, T>; + +/// Optional aspects of a target specification. +/// +/// This has an implementation of `Default`, see each field for what the default is. In general, +/// these try to take "minimal defaults" that don't assume anything about the runtime they run in. +/// +/// `TargetOptions` as a separate structure is mostly an implementation detail of `Target` +/// construction, all its fields logically belong to `Target` and available from `Target` +/// through `Deref` impls. +#[derive(PartialEq, Clone, Debug)] +pub struct TargetOptions { + /// Whether the target is built-in or loaded from a custom target specification. + pub is_builtin: bool, + + /// Used as the `target_endian` `cfg` variable. Defaults to little endian. + pub endian: Endian, + /// Width of c_int type. Defaults to "32". + pub c_int_width: StaticCow<str>, + /// OS name to use for conditional compilation (`target_os`). Defaults to "none". + /// "none" implies a bare metal target without `std` library. + /// A couple of targets having `std` also use "unknown" as an `os` value, + /// but they are exceptions. + pub os: StaticCow<str>, + /// Environment name to use for conditional compilation (`target_env`). Defaults to "". + pub env: StaticCow<str>, + /// ABI name to distinguish multiple ABIs on the same OS and architecture. For instance, `"eabi"` + /// or `"eabihf"`. Defaults to "". + pub abi: StaticCow<str>, + /// Vendor name to use for conditional compilation (`target_vendor`). Defaults to "unknown". + pub vendor: StaticCow<str>, + /// Default linker flavor used if `-C linker-flavor` or `-C linker` are not passed + /// on the command line. Defaults to `LinkerFlavor::Gcc`. + pub linker_flavor: LinkerFlavor, + + /// Linker to invoke + pub linker: Option<StaticCow<str>>, + + /// LLD flavor used if `lld` (or `rust-lld`) is specified as a linker + /// without clarifying its flavor in any way. + pub lld_flavor: LldFlavor, + + /// Linker arguments that are passed *before* any user-defined libraries. + pub pre_link_args: LinkArgs, + /// Objects to link before and after all other object code. + pub pre_link_objects: CrtObjects, + pub post_link_objects: CrtObjects, + /// Same as `(pre|post)_link_objects`, but when we fail to pull the objects with help of the + /// target's native gcc and fall back to the "self-contained" mode and pull them manually. + /// See `crt_objects.rs` for some more detailed documentation. + pub pre_link_objects_fallback: CrtObjects, + pub post_link_objects_fallback: CrtObjects, + /// Which logic to use to determine whether to fall back to the "self-contained" mode or not. + pub crt_objects_fallback: Option<CrtObjectsFallback>, + + /// Linker arguments that are unconditionally passed after any + /// user-defined but before post-link objects. Standard platform + /// libraries that should be always be linked to, usually go here. + pub late_link_args: LinkArgs, + /// Linker arguments used in addition to `late_link_args` if at least one + /// Rust dependency is dynamically linked. + pub late_link_args_dynamic: LinkArgs, + /// Linker arguments used in addition to `late_link_args` if all Rust + /// dependencies are statically linked. + pub late_link_args_static: LinkArgs, + /// Linker arguments that are unconditionally passed *after* any + /// user-defined libraries. + pub post_link_args: LinkArgs, + /// Optional link script applied to `dylib` and `executable` crate types. + /// This is a string containing the script, not a path. Can only be applied + /// to linkers where `linker_is_gnu` is true. + pub link_script: Option<StaticCow<str>>, + + /// Environment variables to be set for the linker invocation. + pub link_env: StaticCow<[(StaticCow<str>, StaticCow<str>)]>, + /// Environment variables to be removed for the linker invocation. + pub link_env_remove: StaticCow<[StaticCow<str>]>, + + /// Extra arguments to pass to the external assembler (when used) + pub asm_args: StaticCow<[StaticCow<str>]>, + + /// Default CPU to pass to LLVM. Corresponds to `llc -mcpu=$cpu`. Defaults + /// to "generic". + pub cpu: StaticCow<str>, + /// Default target features to pass to LLVM. These features will *always* be + /// passed, and cannot be disabled even via `-C`. Corresponds to `llc + /// -mattr=$features`. + pub features: StaticCow<str>, + /// Whether dynamic linking is available on this target. Defaults to false. + pub dynamic_linking: bool, + /// If dynamic linking is available, whether only cdylibs are supported. + pub only_cdylib: bool, + /// Whether executables are available on this target. Defaults to true. + pub executables: bool, + /// Relocation model to use in object file. Corresponds to `llc + /// -relocation-model=$relocation_model`. Defaults to `Pic`. + pub relocation_model: RelocModel, + /// Code model to use. Corresponds to `llc -code-model=$code_model`. + /// Defaults to `None` which means "inherited from the base LLVM target". + pub code_model: Option<CodeModel>, + /// TLS model to use. Options are "global-dynamic" (default), "local-dynamic", "initial-exec" + /// and "local-exec". This is similar to the -ftls-model option in GCC/Clang. + pub tls_model: TlsModel, + /// Do not emit code that uses the "red zone", if the ABI has one. Defaults to false. + pub disable_redzone: bool, + /// Frame pointer mode for this target. Defaults to `MayOmit`. + pub frame_pointer: FramePointer, + /// Emit each function in its own section. Defaults to true. + pub function_sections: bool, + /// String to prepend to the name of every dynamic library. Defaults to "lib". + pub dll_prefix: StaticCow<str>, + /// String to append to the name of every dynamic library. Defaults to ".so". + pub dll_suffix: StaticCow<str>, + /// String to append to the name of every executable. + pub exe_suffix: StaticCow<str>, + /// String to prepend to the name of every static library. Defaults to "lib". + pub staticlib_prefix: StaticCow<str>, + /// String to append to the name of every static library. Defaults to ".a". + pub staticlib_suffix: StaticCow<str>, + /// Values of the `target_family` cfg set for this target. + /// + /// Common options are: "unix", "windows". Defaults to no families. + /// + /// See <https://doc.rust-lang.org/reference/conditional-compilation.html#target_family>. + pub families: StaticCow<[StaticCow<str>]>, + /// Whether the target toolchain's ABI supports returning small structs as an integer. + pub abi_return_struct_as_int: bool, + /// Whether the target toolchain is like macOS's. Only useful for compiling against iOS/macOS, + /// in particular running dsymutil and some other stuff like `-dead_strip`. Defaults to false. + pub is_like_osx: bool, + /// Whether the target toolchain is like Solaris's. + /// Only useful for compiling against Illumos/Solaris, + /// as they have a different set of linker flags. Defaults to false. + pub is_like_solaris: bool, + /// Whether the target is like Windows. + /// This is a combination of several more specific properties represented as a single flag: + /// - The target uses a Windows ABI, + /// - uses PE/COFF as a format for object code, + /// - uses Windows-style dllexport/dllimport for shared libraries, + /// - uses import libraries and .def files for symbol exports, + /// - executables support setting a subsystem. + pub is_like_windows: bool, + /// Whether the target is like MSVC. + /// This is a combination of several more specific properties represented as a single flag: + /// - The target has all the properties from `is_like_windows` + /// (for in-tree targets "is_like_msvc ⇒ is_like_windows" is ensured by a unit test), + /// - has some MSVC-specific Windows ABI properties, + /// - uses a link.exe-like linker, + /// - uses CodeView/PDB for debuginfo and natvis for its visualization, + /// - uses SEH-based unwinding, + /// - supports control flow guard mechanism. + pub is_like_msvc: bool, + /// Whether a target toolchain is like WASM. + pub is_like_wasm: bool, + /// Default supported version of DWARF on this platform. + /// Useful because some platforms (osx, bsd) only want up to DWARF2. + pub default_dwarf_version: u32, + /// Whether the linker support GNU-like arguments such as -O. Defaults to true. + pub linker_is_gnu: bool, + /// The MinGW toolchain has a known issue that prevents it from correctly + /// handling COFF object files with more than 2<sup>15</sup> sections. Since each weak + /// symbol needs its own COMDAT section, weak linkage implies a large + /// number sections that easily exceeds the given limit for larger + /// codebases. Consequently we want a way to disallow weak linkage on some + /// platforms. + pub allows_weak_linkage: bool, + /// Whether the linker support rpaths or not. Defaults to false. + pub has_rpath: bool, + /// Whether to disable linking to the default libraries, typically corresponds + /// to `-nodefaultlibs`. Defaults to true. + pub no_default_libraries: bool, + /// Dynamically linked executables can be compiled as position independent + /// if the default relocation model of position independent code is not + /// changed. This is a requirement to take advantage of ASLR, as otherwise + /// the functions in the executable are not randomized and can be used + /// during an exploit of a vulnerability in any code. + pub position_independent_executables: bool, + /// Executables that are both statically linked and position-independent are supported. + pub static_position_independent_executables: bool, + /// Determines if the target always requires using the PLT for indirect + /// library calls or not. This controls the default value of the `-Z plt` flag. + pub needs_plt: bool, + /// Either partial, full, or off. Full RELRO makes the dynamic linker + /// resolve all symbols at startup and marks the GOT read-only before + /// starting the program, preventing overwriting the GOT. + pub relro_level: RelroLevel, + /// Format that archives should be emitted in. This affects whether we use + /// LLVM to assemble an archive or fall back to the system linker, and + /// currently only "gnu" is used to fall into LLVM. Unknown strings cause + /// the system linker to be used. + pub archive_format: StaticCow<str>, + /// Is asm!() allowed? Defaults to true. + pub allow_asm: bool, + /// Whether the runtime startup code requires the `main` function be passed + /// `argc` and `argv` values. + pub main_needs_argc_argv: bool, + + /// Flag indicating whether #[thread_local] is available for this target. + pub has_thread_local: bool, + // This is mainly for easy compatibility with emscripten. + // If we give emcc .o files that are actually .bc files it + // will 'just work'. + pub obj_is_bitcode: bool, + /// Whether the target requires that emitted object code includes bitcode. + pub forces_embed_bitcode: bool, + /// Content of the LLVM cmdline section associated with embedded bitcode. + pub bitcode_llvm_cmdline: StaticCow<str>, + + /// Don't use this field; instead use the `.min_atomic_width()` method. + pub min_atomic_width: Option<u64>, + + /// Don't use this field; instead use the `.max_atomic_width()` method. + pub max_atomic_width: Option<u64>, + + /// Whether the target supports atomic CAS operations natively + pub atomic_cas: bool, + + /// Panic strategy: "unwind" or "abort" + pub panic_strategy: PanicStrategy, + + /// Whether or not linking dylibs to a static CRT is allowed. + pub crt_static_allows_dylibs: bool, + /// Whether or not the CRT is statically linked by default. + pub crt_static_default: bool, + /// Whether or not crt-static is respected by the compiler (or is a no-op). + pub crt_static_respected: bool, + + /// The implementation of stack probes to use. + pub stack_probes: StackProbeType, + + /// The minimum alignment for global symbols. + pub min_global_align: Option<u64>, + + /// Default number of codegen units to use in debug mode + pub default_codegen_units: Option<u64>, + + /// Whether to generate trap instructions in places where optimization would + /// otherwise produce control flow that falls through into unrelated memory. + pub trap_unreachable: bool, + + /// This target requires everything to be compiled with LTO to emit a final + /// executable, aka there is no native linker for this target. + pub requires_lto: bool, + + /// This target has no support for threads. + pub singlethread: bool, + + /// Whether library functions call lowering/optimization is disabled in LLVM + /// for this target unconditionally. + pub no_builtins: bool, + + /// The default visibility for symbols in this target should be "hidden" + /// rather than "default" + pub default_hidden_visibility: bool, + + /// Whether a .debug_gdb_scripts section will be added to the output object file + pub emit_debug_gdb_scripts: bool, + + /// Whether or not to unconditionally `uwtable` attributes on functions, + /// typically because the platform needs to unwind for things like stack + /// unwinders. + pub requires_uwtable: bool, + + /// Whether or not to emit `uwtable` attributes on functions if `-C force-unwind-tables` + /// is not specified and `uwtable` is not required on this target. + pub default_uwtable: bool, + + /// Whether or not SIMD types are passed by reference in the Rust ABI, + /// typically required if a target can be compiled with a mixed set of + /// target features. This is `true` by default, and `false` for targets like + /// wasm32 where the whole program either has simd or not. + pub simd_types_indirect: bool, + + /// Pass a list of symbol which should be exported in the dylib to the linker. + pub limit_rdylib_exports: bool, + + /// If set, have the linker export exactly these symbols, instead of using + /// the usual logic to figure this out from the crate itself. + pub override_export_symbols: Option<StaticCow<[StaticCow<str>]>>, + + /// Determines how or whether the MergeFunctions LLVM pass should run for + /// this target. Either "disabled", "trampolines", or "aliases". + /// The MergeFunctions pass is generally useful, but some targets may need + /// to opt out. The default is "aliases". + /// + /// Workaround for: <https://github.com/rust-lang/rust/issues/57356> + pub merge_functions: MergeFunctions, + + /// Use platform dependent mcount function + pub mcount: StaticCow<str>, + + /// LLVM ABI name, corresponds to the '-mabi' parameter available in multilib C compilers + pub llvm_abiname: StaticCow<str>, + + /// Whether or not RelaxElfRelocation flag will be passed to the linker + pub relax_elf_relocations: bool, + + /// Additional arguments to pass to LLVM, similar to the `-C llvm-args` codegen option. + pub llvm_args: StaticCow<[StaticCow<str>]>, + + /// Whether to use legacy .ctors initialization hooks rather than .init_array. Defaults + /// to false (uses .init_array). + pub use_ctors_section: bool, + + /// Whether the linker is instructed to add a `GNU_EH_FRAME` ELF header + /// used to locate unwinding information is passed + /// (only has effect if the linker is `ld`-like). + pub eh_frame_header: bool, + + /// Is true if the target is an ARM architecture using thumb v1 which allows for + /// thumb and arm interworking. + pub has_thumb_interworking: bool, + + /// How to handle split debug information, if at all. Specifying `None` has + /// target-specific meaning. + pub split_debuginfo: SplitDebuginfo, + + /// The sanitizers supported by this target + /// + /// Note that the support here is at a codegen level. If the machine code with sanitizer + /// enabled can generated on this target, but the necessary supporting libraries are not + /// distributed with the target, the sanitizer should still appear in this list for the target. + pub supported_sanitizers: SanitizerSet, + + /// If present it's a default value to use for adjusting the C ABI. + pub default_adjusted_cabi: Option<Abi>, + + /// Minimum number of bits in #[repr(C)] enum. Defaults to 32. + pub c_enum_min_bits: u64, + + /// Whether or not the DWARF `.debug_aranges` section should be generated. + pub generate_arange_section: bool, + + /// Whether the target supports stack canary checks. `true` by default, + /// since this is most common among tier 1 and tier 2 targets. + pub supports_stack_protector: bool, +} + +/// Add arguments for the given flavor and also for its "twin" flavors +/// that have a compatible command line interface. +fn add_link_args(link_args: &mut LinkArgs, flavor: LinkerFlavor, args: &[&'static str]) { + let mut insert = |flavor| { + link_args.entry(flavor).or_default().extend(args.iter().copied().map(Cow::Borrowed)) + }; + insert(flavor); + match flavor { + LinkerFlavor::Ld => insert(LinkerFlavor::Lld(LldFlavor::Ld)), + LinkerFlavor::Msvc => insert(LinkerFlavor::Lld(LldFlavor::Link)), + LinkerFlavor::Lld(LldFlavor::Wasm) => {} + LinkerFlavor::Lld(lld_flavor) => { + panic!("add_link_args: use non-LLD flavor for {:?}", lld_flavor) + } + LinkerFlavor::Gcc + | LinkerFlavor::Em + | LinkerFlavor::L4Bender + | LinkerFlavor::BpfLinker + | LinkerFlavor::PtxLinker => {} + } +} + +impl TargetOptions { + fn link_args(flavor: LinkerFlavor, args: &[&'static str]) -> LinkArgs { + let mut link_args = LinkArgs::new(); + add_link_args(&mut link_args, flavor, args); + link_args + } + + fn add_pre_link_args(&mut self, flavor: LinkerFlavor, args: &[&'static str]) { + add_link_args(&mut self.pre_link_args, flavor, args); + } + + fn add_post_link_args(&mut self, flavor: LinkerFlavor, args: &[&'static str]) { + add_link_args(&mut self.post_link_args, flavor, args); + } +} + +impl Default for TargetOptions { + /// Creates a set of "sane defaults" for any target. This is still + /// incomplete, and if used for compilation, will certainly not work. + fn default() -> TargetOptions { + TargetOptions { + is_builtin: false, + endian: Endian::Little, + c_int_width: "32".into(), + os: "none".into(), + env: "".into(), + abi: "".into(), + vendor: "unknown".into(), + linker_flavor: LinkerFlavor::Gcc, + linker: option_env!("CFG_DEFAULT_LINKER").map(|s| s.into()), + lld_flavor: LldFlavor::Ld, + pre_link_args: LinkArgs::new(), + post_link_args: LinkArgs::new(), + link_script: None, + asm_args: cvs![], + cpu: "generic".into(), + features: "".into(), + dynamic_linking: false, + only_cdylib: false, + executables: true, + relocation_model: RelocModel::Pic, + code_model: None, + tls_model: TlsModel::GeneralDynamic, + disable_redzone: false, + frame_pointer: FramePointer::MayOmit, + function_sections: true, + dll_prefix: "lib".into(), + dll_suffix: ".so".into(), + exe_suffix: "".into(), + staticlib_prefix: "lib".into(), + staticlib_suffix: ".a".into(), + families: cvs![], + abi_return_struct_as_int: false, + is_like_osx: false, + is_like_solaris: false, + is_like_windows: false, + is_like_msvc: false, + is_like_wasm: false, + default_dwarf_version: 4, + linker_is_gnu: true, + allows_weak_linkage: true, + has_rpath: false, + no_default_libraries: true, + position_independent_executables: false, + static_position_independent_executables: false, + needs_plt: false, + relro_level: RelroLevel::None, + pre_link_objects: Default::default(), + post_link_objects: Default::default(), + pre_link_objects_fallback: Default::default(), + post_link_objects_fallback: Default::default(), + crt_objects_fallback: None, + late_link_args: LinkArgs::new(), + late_link_args_dynamic: LinkArgs::new(), + late_link_args_static: LinkArgs::new(), + link_env: cvs![], + link_env_remove: cvs![], + archive_format: "gnu".into(), + main_needs_argc_argv: true, + allow_asm: true, + has_thread_local: false, + obj_is_bitcode: false, + forces_embed_bitcode: false, + bitcode_llvm_cmdline: "".into(), + min_atomic_width: None, + max_atomic_width: None, + atomic_cas: true, + panic_strategy: PanicStrategy::Unwind, + crt_static_allows_dylibs: false, + crt_static_default: false, + crt_static_respected: false, + stack_probes: StackProbeType::None, + min_global_align: None, + default_codegen_units: None, + trap_unreachable: true, + requires_lto: false, + singlethread: false, + no_builtins: false, + default_hidden_visibility: false, + emit_debug_gdb_scripts: true, + requires_uwtable: false, + default_uwtable: false, + simd_types_indirect: true, + limit_rdylib_exports: true, + override_export_symbols: None, + merge_functions: MergeFunctions::Aliases, + mcount: "mcount".into(), + llvm_abiname: "".into(), + relax_elf_relocations: false, + llvm_args: cvs![], + use_ctors_section: false, + eh_frame_header: true, + has_thumb_interworking: false, + split_debuginfo: SplitDebuginfo::Off, + supported_sanitizers: SanitizerSet::empty(), + default_adjusted_cabi: None, + c_enum_min_bits: 32, + generate_arange_section: true, + supports_stack_protector: true, + } + } +} + +/// `TargetOptions` being a separate type is basically an implementation detail of `Target` that is +/// used for providing defaults. Perhaps there's a way to merge `TargetOptions` into `Target` so +/// this `Deref` implementation is no longer necessary. +impl Deref for Target { + type Target = TargetOptions; + + #[inline] + fn deref(&self) -> &Self::Target { + &self.options + } +} +impl DerefMut for Target { + #[inline] + fn deref_mut(&mut self) -> &mut Self::Target { + &mut self.options + } +} + +impl Target { + /// Given a function ABI, turn it into the correct ABI for this target. + pub fn adjust_abi(&self, abi: Abi) -> Abi { + match abi { + Abi::C { .. } => self.default_adjusted_cabi.unwrap_or(abi), + Abi::System { unwind } if self.is_like_windows && self.arch == "x86" => { + Abi::Stdcall { unwind } + } + Abi::System { unwind } => Abi::C { unwind }, + Abi::EfiApi if self.arch == "x86_64" => Abi::Win64 { unwind: false }, + Abi::EfiApi => Abi::C { unwind: false }, + + // See commentary in `is_abi_supported`. + Abi::Stdcall { .. } | Abi::Thiscall { .. } if self.arch == "x86" => abi, + Abi::Stdcall { unwind } | Abi::Thiscall { unwind } => Abi::C { unwind }, + Abi::Fastcall { .. } if self.arch == "x86" => abi, + Abi::Vectorcall { .. } if ["x86", "x86_64"].contains(&&self.arch[..]) => abi, + Abi::Fastcall { unwind } | Abi::Vectorcall { unwind } => Abi::C { unwind }, + + abi => abi, + } + } + + /// Returns a None if the UNSUPPORTED_CALLING_CONVENTIONS lint should be emitted + pub fn is_abi_supported(&self, abi: Abi) -> Option<bool> { + use Abi::*; + Some(match abi { + Rust + | C { .. } + | System { .. } + | RustIntrinsic + | RustCall + | PlatformIntrinsic + | Unadjusted + | Cdecl { .. } + | EfiApi + | RustCold => true, + X86Interrupt => ["x86", "x86_64"].contains(&&self.arch[..]), + Aapcs { .. } => "arm" == self.arch, + CCmseNonSecureCall => ["arm", "aarch64"].contains(&&self.arch[..]), + Win64 { .. } | SysV64 { .. } => self.arch == "x86_64", + PtxKernel => self.arch == "nvptx64", + Msp430Interrupt => self.arch == "msp430", + AmdGpuKernel => self.arch == "amdgcn", + AvrInterrupt | AvrNonBlockingInterrupt => self.arch == "avr", + Wasm => ["wasm32", "wasm64"].contains(&&self.arch[..]), + Thiscall { .. } => self.arch == "x86", + // On windows these fall-back to platform native calling convention (C) when the + // architecture is not supported. + // + // This is I believe a historical accident that has occurred as part of Microsoft + // striving to allow most of the code to "just" compile when support for 64-bit x86 + // was added and then later again, when support for ARM architectures was added. + // + // This is well documented across MSDN. Support for this in Rust has been added in + // #54576. This makes much more sense in context of Microsoft's C++ than it does in + // Rust, but there isn't much leeway remaining here to change it back at the time this + // comment has been written. + // + // Following are the relevant excerpts from the MSDN documentation. + // + // > The __vectorcall calling convention is only supported in native code on x86 and + // x64 processors that include Streaming SIMD Extensions 2 (SSE2) and above. + // > ... + // > On ARM machines, __vectorcall is accepted and ignored by the compiler. + // + // -- https://docs.microsoft.com/en-us/cpp/cpp/vectorcall?view=msvc-160 + // + // > On ARM and x64 processors, __stdcall is accepted and ignored by the compiler; + // + // -- https://docs.microsoft.com/en-us/cpp/cpp/stdcall?view=msvc-160 + // + // > In most cases, keywords or compiler switches that specify an unsupported + // > convention on a particular platform are ignored, and the platform default + // > convention is used. + // + // -- https://docs.microsoft.com/en-us/cpp/cpp/argument-passing-and-naming-conventions + Stdcall { .. } | Fastcall { .. } | Vectorcall { .. } if self.is_like_windows => true, + // Outside of Windows we want to only support these calling conventions for the + // architectures for which these calling conventions are actually well defined. + Stdcall { .. } | Fastcall { .. } if self.arch == "x86" => true, + Vectorcall { .. } if ["x86", "x86_64"].contains(&&self.arch[..]) => true, + // Return a `None` for other cases so that we know to emit a future compat lint. + Stdcall { .. } | Fastcall { .. } | Vectorcall { .. } => return None, + }) + } + + /// Minimum integer size in bits that this target can perform atomic + /// operations on. + pub fn min_atomic_width(&self) -> u64 { + self.min_atomic_width.unwrap_or(8) + } + + /// Maximum integer size in bits that this target can perform atomic + /// operations on. + pub fn max_atomic_width(&self) -> u64 { + self.max_atomic_width.unwrap_or_else(|| self.pointer_width.into()) + } + + /// Loads a target descriptor from a JSON object. + pub fn from_json(obj: Json) -> Result<(Target, TargetWarnings), String> { + // While ugly, this code must remain this way to retain + // compatibility with existing JSON fields and the internal + // expected naming of the Target and TargetOptions structs. + // To ensure compatibility is retained, the built-in targets + // are round-tripped through this code to catch cases where + // the JSON parser is not updated to match the structs. + + let mut obj = match obj { + Value::Object(obj) => obj, + _ => return Err("Expected JSON object for target")?, + }; + + let mut get_req_field = |name: &str| { + obj.remove(name) + .and_then(|j| j.as_str().map(str::to_string)) + .ok_or_else(|| format!("Field {} in target specification is required", name)) + }; + + let mut base = Target { + llvm_target: get_req_field("llvm-target")?.into(), + pointer_width: get_req_field("target-pointer-width")? + .parse::<u32>() + .map_err(|_| "target-pointer-width must be an integer".to_string())?, + data_layout: get_req_field("data-layout")?.into(), + arch: get_req_field("arch")?.into(), + options: Default::default(), + }; + + let mut incorrect_type = vec![]; + + macro_rules! key { + ($key_name:ident) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + if let Some(s) = obj.remove(&name).and_then(|s| s.as_str().map(str::to_string).map(Cow::from)) { + base.$key_name = s; + } + } ); + ($key_name:ident = $json_name:expr) => ( { + let name = $json_name; + if let Some(s) = obj.remove(name).and_then(|s| s.as_str().map(str::to_string).map(Cow::from)) { + base.$key_name = s; + } + } ); + ($key_name:ident, bool) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + if let Some(s) = obj.remove(&name).and_then(|b| b.as_bool()) { + base.$key_name = s; + } + } ); + ($key_name:ident, u64) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + if let Some(s) = obj.remove(&name).and_then(|j| Json::as_u64(&j)) { + base.$key_name = s; + } + } ); + ($key_name:ident, u32) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + if let Some(s) = obj.remove(&name).and_then(|b| b.as_u64()) { + if s < 1 || s > 5 { + return Err("Not a valid DWARF version number".into()); + } + base.$key_name = s as u32; + } + } ); + ($key_name:ident, Option<u64>) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + if let Some(s) = obj.remove(&name).and_then(|b| b.as_u64()) { + base.$key_name = Some(s); + } + } ); + ($key_name:ident, MergeFunctions) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + obj.remove(&name).and_then(|o| o.as_str().and_then(|s| { + match s.parse::<MergeFunctions>() { + Ok(mergefunc) => base.$key_name = mergefunc, + _ => return Some(Err(format!("'{}' is not a valid value for \ + merge-functions. Use 'disabled', \ + 'trampolines', or 'aliases'.", + s))), + } + Some(Ok(())) + })).unwrap_or(Ok(())) + } ); + ($key_name:ident, RelocModel) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + obj.remove(&name).and_then(|o| o.as_str().and_then(|s| { + match s.parse::<RelocModel>() { + Ok(relocation_model) => base.$key_name = relocation_model, + _ => return Some(Err(format!("'{}' is not a valid relocation model. \ + Run `rustc --print relocation-models` to \ + see the list of supported values.", s))), + } + Some(Ok(())) + })).unwrap_or(Ok(())) + } ); + ($key_name:ident, CodeModel) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + obj.remove(&name).and_then(|o| o.as_str().and_then(|s| { + match s.parse::<CodeModel>() { + Ok(code_model) => base.$key_name = Some(code_model), + _ => return Some(Err(format!("'{}' is not a valid code model. \ + Run `rustc --print code-models` to \ + see the list of supported values.", s))), + } + Some(Ok(())) + })).unwrap_or(Ok(())) + } ); + ($key_name:ident, TlsModel) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + obj.remove(&name).and_then(|o| o.as_str().and_then(|s| { + match s.parse::<TlsModel>() { + Ok(tls_model) => base.$key_name = tls_model, + _ => return Some(Err(format!("'{}' is not a valid TLS model. \ + Run `rustc --print tls-models` to \ + see the list of supported values.", s))), + } + Some(Ok(())) + })).unwrap_or(Ok(())) + } ); + ($key_name:ident, PanicStrategy) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + obj.remove(&name).and_then(|o| o.as_str().and_then(|s| { + match s { + "unwind" => base.$key_name = PanicStrategy::Unwind, + "abort" => base.$key_name = PanicStrategy::Abort, + _ => return Some(Err(format!("'{}' is not a valid value for \ + panic-strategy. Use 'unwind' or 'abort'.", + s))), + } + Some(Ok(())) + })).unwrap_or(Ok(())) + } ); + ($key_name:ident, RelroLevel) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + obj.remove(&name).and_then(|o| o.as_str().and_then(|s| { + match s.parse::<RelroLevel>() { + Ok(level) => base.$key_name = level, + _ => return Some(Err(format!("'{}' is not a valid value for \ + relro-level. Use 'full', 'partial, or 'off'.", + s))), + } + Some(Ok(())) + })).unwrap_or(Ok(())) + } ); + ($key_name:ident, SplitDebuginfo) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + obj.remove(&name).and_then(|o| o.as_str().and_then(|s| { + match s.parse::<SplitDebuginfo>() { + Ok(level) => base.$key_name = level, + _ => return Some(Err(format!("'{}' is not a valid value for \ + split-debuginfo. Use 'off' or 'dsymutil'.", + s))), + } + Some(Ok(())) + })).unwrap_or(Ok(())) + } ); + ($key_name:ident, list) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + if let Some(j) = obj.remove(&name) { + if let Some(v) = j.as_array() { + base.$key_name = v.iter() + .map(|a| a.as_str().unwrap().to_string().into()) + .collect(); + } else { + incorrect_type.push(name) + } + } + } ); + ($key_name:ident, opt_list) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + if let Some(j) = obj.remove(&name) { + if let Some(v) = j.as_array() { + base.$key_name = Some(v.iter() + .map(|a| a.as_str().unwrap().to_string().into()) + .collect()); + } else { + incorrect_type.push(name) + } + } + } ); + ($key_name:ident, optional) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + if let Some(o) = obj.remove(&name) { + base.$key_name = o + .as_str() + .map(|s| s.to_string().into()); + } + } ); + ($key_name:ident, LldFlavor) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + obj.remove(&name).and_then(|o| o.as_str().and_then(|s| { + if let Some(flavor) = LldFlavor::from_str(&s) { + base.$key_name = flavor; + } else { + return Some(Err(format!( + "'{}' is not a valid value for lld-flavor. \ + Use 'darwin', 'gnu', 'link' or 'wasm.", + s))) + } + Some(Ok(())) + })).unwrap_or(Ok(())) + } ); + ($key_name:ident, LinkerFlavor) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + obj.remove(&name).and_then(|o| o.as_str().and_then(|s| { + match LinkerFlavor::from_str(s) { + Some(linker_flavor) => base.$key_name = linker_flavor, + _ => return Some(Err(format!("'{}' is not a valid value for linker-flavor. \ + Use {}", s, LinkerFlavor::one_of()))), + } + Some(Ok(())) + })).unwrap_or(Ok(())) + } ); + ($key_name:ident, StackProbeType) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + obj.remove(&name).and_then(|o| match StackProbeType::from_json(&o) { + Ok(v) => { + base.$key_name = v; + Some(Ok(())) + }, + Err(s) => Some(Err( + format!("`{:?}` is not a valid value for `{}`: {}", o, name, s) + )), + }).unwrap_or(Ok(())) + } ); + ($key_name:ident, SanitizerSet) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + if let Some(o) = obj.remove(&name) { + if let Some(a) = o.as_array() { + for s in a { + base.$key_name |= match s.as_str() { + Some("address") => SanitizerSet::ADDRESS, + Some("cfi") => SanitizerSet::CFI, + Some("leak") => SanitizerSet::LEAK, + Some("memory") => SanitizerSet::MEMORY, + Some("memtag") => SanitizerSet::MEMTAG, + Some("shadow-call-stack") => SanitizerSet::SHADOWCALLSTACK, + Some("thread") => SanitizerSet::THREAD, + Some("hwaddress") => SanitizerSet::HWADDRESS, + Some(s) => return Err(format!("unknown sanitizer {}", s)), + _ => return Err(format!("not a string: {:?}", s)), + }; + } + } else { + incorrect_type.push(name) + } + } + Ok::<(), String>(()) + } ); + + ($key_name:ident, crt_objects_fallback) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + obj.remove(&name).and_then(|o| o.as_str().and_then(|s| { + match s.parse::<CrtObjectsFallback>() { + Ok(fallback) => base.$key_name = Some(fallback), + _ => return Some(Err(format!("'{}' is not a valid CRT objects fallback. \ + Use 'musl', 'mingw' or 'wasm'", s))), + } + Some(Ok(())) + })).unwrap_or(Ok(())) + } ); + ($key_name:ident, link_objects) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + if let Some(val) = obj.remove(&name) { + let obj = val.as_object().ok_or_else(|| format!("{}: expected a \ + JSON object with fields per CRT object kind.", name))?; + let mut args = CrtObjects::new(); + for (k, v) in obj { + let kind = LinkOutputKind::from_str(&k).ok_or_else(|| { + format!("{}: '{}' is not a valid value for CRT object kind. \ + Use '(dynamic,static)-(nopic,pic)-exe' or \ + '(dynamic,static)-dylib' or 'wasi-reactor-exe'", name, k) + })?; + + let v = v.as_array().ok_or_else(|| + format!("{}.{}: expected a JSON array", name, k) + )?.iter().enumerate() + .map(|(i,s)| { + let s = s.as_str().ok_or_else(|| + format!("{}.{}[{}]: expected a JSON string", name, k, i))?; + Ok(s.to_string().into()) + }) + .collect::<Result<Vec<_>, String>>()?; + + args.insert(kind, v); + } + base.$key_name = args; + } + } ); + ($key_name:ident, link_args) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + if let Some(val) = obj.remove(&name) { + let obj = val.as_object().ok_or_else(|| format!("{}: expected a \ + JSON object with fields per linker-flavor.", name))?; + let mut args = LinkArgs::new(); + for (k, v) in obj { + let flavor = LinkerFlavor::from_str(&k).ok_or_else(|| { + format!("{}: '{}' is not a valid value for linker-flavor. \ + Use 'em', 'gcc', 'ld' or 'msvc'", name, k) + })?; + + let v = v.as_array().ok_or_else(|| + format!("{}.{}: expected a JSON array", name, k) + )?.iter().enumerate() + .map(|(i,s)| { + let s = s.as_str().ok_or_else(|| + format!("{}.{}[{}]: expected a JSON string", name, k, i))?; + Ok(s.to_string().into()) + }) + .collect::<Result<Vec<_>, String>>()?; + + args.insert(flavor, v); + } + base.$key_name = args; + } + } ); + ($key_name:ident, env) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + if let Some(o) = obj.remove(&name) { + if let Some(a) = o.as_array() { + for o in a { + if let Some(s) = o.as_str() { + let p = s.split('=').collect::<Vec<_>>(); + if p.len() == 2 { + let k = p[0].to_string(); + let v = p[1].to_string(); + base.$key_name.to_mut().push((k.into(), v.into())); + } + } + } + } else { + incorrect_type.push(name) + } + } + } ); + ($key_name:ident, Option<Abi>) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + obj.remove(&name).and_then(|o| o.as_str().and_then(|s| { + match lookup_abi(s) { + Some(abi) => base.$key_name = Some(abi), + _ => return Some(Err(format!("'{}' is not a valid value for abi", s))), + } + Some(Ok(())) + })).unwrap_or(Ok(())) + } ); + ($key_name:ident, TargetFamilies) => ( { + if let Some(value) = obj.remove("target-family") { + if let Some(v) = value.as_array() { + base.$key_name = v.iter() + .map(|a| a.as_str().unwrap().to_string().into()) + .collect(); + } else if let Some(v) = value.as_str() { + base.$key_name = vec![v.to_string().into()].into(); + } + } + } ); + } + + if let Some(j) = obj.remove("target-endian") { + if let Some(s) = j.as_str() { + base.endian = s.parse()?; + } else { + incorrect_type.push("target-endian".into()) + } + } + + if let Some(fp) = obj.remove("frame-pointer") { + if let Some(s) = fp.as_str() { + base.frame_pointer = s + .parse() + .map_err(|()| format!("'{}' is not a valid value for frame-pointer", s))?; + } else { + incorrect_type.push("frame-pointer".into()) + } + } + + key!(is_builtin, bool); + key!(c_int_width = "target-c-int-width"); + key!(os); + key!(env); + key!(abi); + key!(vendor); + key!(linker_flavor, LinkerFlavor)?; + key!(linker, optional); + key!(lld_flavor, LldFlavor)?; + key!(pre_link_objects, link_objects); + key!(post_link_objects, link_objects); + key!(pre_link_objects_fallback, link_objects); + key!(post_link_objects_fallback, link_objects); + key!(crt_objects_fallback, crt_objects_fallback)?; + key!(pre_link_args, link_args); + key!(late_link_args, link_args); + key!(late_link_args_dynamic, link_args); + key!(late_link_args_static, link_args); + key!(post_link_args, link_args); + key!(link_script, optional); + key!(link_env, env); + key!(link_env_remove, list); + key!(asm_args, list); + key!(cpu); + key!(features); + key!(dynamic_linking, bool); + key!(only_cdylib, bool); + key!(executables, bool); + key!(relocation_model, RelocModel)?; + key!(code_model, CodeModel)?; + key!(tls_model, TlsModel)?; + key!(disable_redzone, bool); + key!(function_sections, bool); + key!(dll_prefix); + key!(dll_suffix); + key!(exe_suffix); + key!(staticlib_prefix); + key!(staticlib_suffix); + key!(families, TargetFamilies); + key!(abi_return_struct_as_int, bool); + key!(is_like_osx, bool); + key!(is_like_solaris, bool); + key!(is_like_windows, bool); + key!(is_like_msvc, bool); + key!(is_like_wasm, bool); + key!(default_dwarf_version, u32); + key!(linker_is_gnu, bool); + key!(allows_weak_linkage, bool); + key!(has_rpath, bool); + key!(no_default_libraries, bool); + key!(position_independent_executables, bool); + key!(static_position_independent_executables, bool); + key!(needs_plt, bool); + key!(relro_level, RelroLevel)?; + key!(archive_format); + key!(allow_asm, bool); + key!(main_needs_argc_argv, bool); + key!(has_thread_local, bool); + key!(obj_is_bitcode, bool); + key!(forces_embed_bitcode, bool); + key!(bitcode_llvm_cmdline); + key!(max_atomic_width, Option<u64>); + key!(min_atomic_width, Option<u64>); + key!(atomic_cas, bool); + key!(panic_strategy, PanicStrategy)?; + key!(crt_static_allows_dylibs, bool); + key!(crt_static_default, bool); + key!(crt_static_respected, bool); + key!(stack_probes, StackProbeType)?; + key!(min_global_align, Option<u64>); + key!(default_codegen_units, Option<u64>); + key!(trap_unreachable, bool); + key!(requires_lto, bool); + key!(singlethread, bool); + key!(no_builtins, bool); + key!(default_hidden_visibility, bool); + key!(emit_debug_gdb_scripts, bool); + key!(requires_uwtable, bool); + key!(default_uwtable, bool); + key!(simd_types_indirect, bool); + key!(limit_rdylib_exports, bool); + key!(override_export_symbols, opt_list); + key!(merge_functions, MergeFunctions)?; + key!(mcount = "target-mcount"); + key!(llvm_abiname); + key!(relax_elf_relocations, bool); + key!(llvm_args, list); + key!(use_ctors_section, bool); + key!(eh_frame_header, bool); + key!(has_thumb_interworking, bool); + key!(split_debuginfo, SplitDebuginfo)?; + key!(supported_sanitizers, SanitizerSet)?; + key!(default_adjusted_cabi, Option<Abi>)?; + key!(c_enum_min_bits, u64); + key!(generate_arange_section, bool); + key!(supports_stack_protector, bool); + + if base.is_builtin { + // This can cause unfortunate ICEs later down the line. + return Err("may not set is_builtin for targets not built-in".into()); + } + // Each field should have been read using `Json::remove` so any keys remaining are unused. + let remaining_keys = obj.keys(); + Ok(( + base, + TargetWarnings { unused_fields: remaining_keys.cloned().collect(), incorrect_type }, + )) + } + + /// Load a built-in target + pub fn expect_builtin(target_triple: &TargetTriple) -> Target { + match *target_triple { + TargetTriple::TargetTriple(ref target_triple) => { + load_builtin(target_triple).expect("built-in target") + } + TargetTriple::TargetJson { .. } => { + panic!("built-in targets doens't support target-paths") + } + } + } + + /// Search for a JSON file specifying the given target triple. + /// + /// If none is found in `$RUST_TARGET_PATH`, look for a file called `target.json` inside the + /// sysroot under the target-triple's `rustlib` directory. Note that it could also just be a + /// bare filename already, so also check for that. If one of the hardcoded targets we know + /// about, just return it directly. + /// + /// The error string could come from any of the APIs called, including filesystem access and + /// JSON decoding. + pub fn search( + target_triple: &TargetTriple, + sysroot: &Path, + ) -> Result<(Target, TargetWarnings), String> { + use std::env; + use std::fs; + + fn load_file(path: &Path) -> Result<(Target, TargetWarnings), String> { + let contents = fs::read_to_string(path).map_err(|e| e.to_string())?; + let obj = serde_json::from_str(&contents).map_err(|e| e.to_string())?; + Target::from_json(obj) + } + + match *target_triple { + TargetTriple::TargetTriple(ref target_triple) => { + // check if triple is in list of built-in targets + if let Some(t) = load_builtin(target_triple) { + return Ok((t, TargetWarnings::empty())); + } + + // search for a file named `target_triple`.json in RUST_TARGET_PATH + let path = { + let mut target = target_triple.to_string(); + target.push_str(".json"); + PathBuf::from(target) + }; + + let target_path = env::var_os("RUST_TARGET_PATH").unwrap_or_default(); + + for dir in env::split_paths(&target_path) { + let p = dir.join(&path); + if p.is_file() { + return load_file(&p); + } + } + + // Additionally look in the sysroot under `lib/rustlib/<triple>/target.json` + // as a fallback. + let rustlib_path = crate::target_rustlib_path(&sysroot, &target_triple); + let p = PathBuf::from_iter([ + Path::new(sysroot), + Path::new(&rustlib_path), + Path::new("target.json"), + ]); + if p.is_file() { + return load_file(&p); + } + + Err(format!("Could not find specification for target {:?}", target_triple)) + } + TargetTriple::TargetJson { ref contents, .. } => { + let obj = serde_json::from_str(contents).map_err(|e| e.to_string())?; + Target::from_json(obj) + } + } + } +} + +impl ToJson for Target { + fn to_json(&self) -> Json { + let mut d = serde_json::Map::new(); + let default: TargetOptions = Default::default(); + + macro_rules! target_val { + ($attr:ident) => {{ + let name = (stringify!($attr)).replace("_", "-"); + d.insert(name, self.$attr.to_json()); + }}; + } + + macro_rules! target_option_val { + ($attr:ident) => {{ + let name = (stringify!($attr)).replace("_", "-"); + if default.$attr != self.$attr { + d.insert(name, self.$attr.to_json()); + } + }}; + ($attr:ident, $key_name:expr) => {{ + let name = $key_name; + if default.$attr != self.$attr { + d.insert(name.into(), self.$attr.to_json()); + } + }}; + (link_args - $attr:ident) => {{ + let name = (stringify!($attr)).replace("_", "-"); + if default.$attr != self.$attr { + let obj = self + .$attr + .iter() + .map(|(k, v)| (k.desc().to_string(), v.clone())) + .collect::<BTreeMap<_, _>>(); + d.insert(name, obj.to_json()); + } + }}; + (env - $attr:ident) => {{ + let name = (stringify!($attr)).replace("_", "-"); + if default.$attr != self.$attr { + let obj = self + .$attr + .iter() + .map(|&(ref k, ref v)| format!("{k}={v}")) + .collect::<Vec<_>>(); + d.insert(name, obj.to_json()); + } + }}; + } + + target_val!(llvm_target); + d.insert("target-pointer-width".to_string(), self.pointer_width.to_string().to_json()); + target_val!(arch); + target_val!(data_layout); + + target_option_val!(is_builtin); + target_option_val!(endian, "target-endian"); + target_option_val!(c_int_width, "target-c-int-width"); + target_option_val!(os); + target_option_val!(env); + target_option_val!(abi); + target_option_val!(vendor); + target_option_val!(linker_flavor); + target_option_val!(linker); + target_option_val!(lld_flavor); + target_option_val!(pre_link_objects); + target_option_val!(post_link_objects); + target_option_val!(pre_link_objects_fallback); + target_option_val!(post_link_objects_fallback); + target_option_val!(crt_objects_fallback); + target_option_val!(link_args - pre_link_args); + target_option_val!(link_args - late_link_args); + target_option_val!(link_args - late_link_args_dynamic); + target_option_val!(link_args - late_link_args_static); + target_option_val!(link_args - post_link_args); + target_option_val!(link_script); + target_option_val!(env - link_env); + target_option_val!(link_env_remove); + target_option_val!(asm_args); + target_option_val!(cpu); + target_option_val!(features); + target_option_val!(dynamic_linking); + target_option_val!(only_cdylib); + target_option_val!(executables); + target_option_val!(relocation_model); + target_option_val!(code_model); + target_option_val!(tls_model); + target_option_val!(disable_redzone); + target_option_val!(frame_pointer); + target_option_val!(function_sections); + target_option_val!(dll_prefix); + target_option_val!(dll_suffix); + target_option_val!(exe_suffix); + target_option_val!(staticlib_prefix); + target_option_val!(staticlib_suffix); + target_option_val!(families, "target-family"); + target_option_val!(abi_return_struct_as_int); + target_option_val!(is_like_osx); + target_option_val!(is_like_solaris); + target_option_val!(is_like_windows); + target_option_val!(is_like_msvc); + target_option_val!(is_like_wasm); + target_option_val!(default_dwarf_version); + target_option_val!(linker_is_gnu); + target_option_val!(allows_weak_linkage); + target_option_val!(has_rpath); + target_option_val!(no_default_libraries); + target_option_val!(position_independent_executables); + target_option_val!(static_position_independent_executables); + target_option_val!(needs_plt); + target_option_val!(relro_level); + target_option_val!(archive_format); + target_option_val!(allow_asm); + target_option_val!(main_needs_argc_argv); + target_option_val!(has_thread_local); + target_option_val!(obj_is_bitcode); + target_option_val!(forces_embed_bitcode); + target_option_val!(bitcode_llvm_cmdline); + target_option_val!(min_atomic_width); + target_option_val!(max_atomic_width); + target_option_val!(atomic_cas); + target_option_val!(panic_strategy); + target_option_val!(crt_static_allows_dylibs); + target_option_val!(crt_static_default); + target_option_val!(crt_static_respected); + target_option_val!(stack_probes); + target_option_val!(min_global_align); + target_option_val!(default_codegen_units); + target_option_val!(trap_unreachable); + target_option_val!(requires_lto); + target_option_val!(singlethread); + target_option_val!(no_builtins); + target_option_val!(default_hidden_visibility); + target_option_val!(emit_debug_gdb_scripts); + target_option_val!(requires_uwtable); + target_option_val!(default_uwtable); + target_option_val!(simd_types_indirect); + target_option_val!(limit_rdylib_exports); + target_option_val!(override_export_symbols); + target_option_val!(merge_functions); + target_option_val!(mcount, "target-mcount"); + target_option_val!(llvm_abiname); + target_option_val!(relax_elf_relocations); + target_option_val!(llvm_args); + target_option_val!(use_ctors_section); + target_option_val!(eh_frame_header); + target_option_val!(has_thumb_interworking); + target_option_val!(split_debuginfo); + target_option_val!(supported_sanitizers); + target_option_val!(c_enum_min_bits); + target_option_val!(generate_arange_section); + target_option_val!(supports_stack_protector); + + if let Some(abi) = self.default_adjusted_cabi { + d.insert("default-adjusted-cabi".into(), Abi::name(abi).to_json()); + } + + Json::Object(d) + } +} + +/// Either a target triple string or a path to a JSON file. +#[derive(Clone, Debug)] +pub enum TargetTriple { + TargetTriple(String), + TargetJson { + /// Warning: This field may only be used by rustdoc. Using it anywhere else will lead to + /// inconsistencies as it is discarded during serialization. + path_for_rustdoc: PathBuf, + triple: String, + contents: String, + }, +} + +// Use a manual implementation to ignore the path field +impl PartialEq for TargetTriple { + fn eq(&self, other: &Self) -> bool { + match (self, other) { + (Self::TargetTriple(l0), Self::TargetTriple(r0)) => l0 == r0, + ( + Self::TargetJson { path_for_rustdoc: _, triple: l_triple, contents: l_contents }, + Self::TargetJson { path_for_rustdoc: _, triple: r_triple, contents: r_contents }, + ) => l_triple == r_triple && l_contents == r_contents, + _ => false, + } + } +} + +// Use a manual implementation to ignore the path field +impl Hash for TargetTriple { + fn hash<H: Hasher>(&self, state: &mut H) -> () { + match self { + TargetTriple::TargetTriple(triple) => { + 0u8.hash(state); + triple.hash(state) + } + TargetTriple::TargetJson { path_for_rustdoc: _, triple, contents } => { + 1u8.hash(state); + triple.hash(state); + contents.hash(state) + } + } + } +} + +// Use a manual implementation to prevent encoding the target json file path in the crate metadata +impl<S: Encoder> Encodable<S> for TargetTriple { + fn encode(&self, s: &mut S) { + match self { + TargetTriple::TargetTriple(triple) => s.emit_enum_variant(0, |s| s.emit_str(triple)), + TargetTriple::TargetJson { path_for_rustdoc: _, triple, contents } => s + .emit_enum_variant(1, |s| { + s.emit_str(triple); + s.emit_str(contents) + }), + } + } +} + +impl<D: Decoder> Decodable<D> for TargetTriple { + fn decode(d: &mut D) -> Self { + match d.read_usize() { + 0 => TargetTriple::TargetTriple(d.read_str().to_owned()), + 1 => TargetTriple::TargetJson { + path_for_rustdoc: PathBuf::new(), + triple: d.read_str().to_owned(), + contents: d.read_str().to_owned(), + }, + _ => { + panic!("invalid enum variant tag while decoding `TargetTriple`, expected 0..2"); + } + } + } +} + +impl TargetTriple { + /// Creates a target triple from the passed target triple string. + pub fn from_triple(triple: &str) -> Self { + TargetTriple::TargetTriple(triple.into()) + } + + /// Creates a target triple from the passed target path. + pub fn from_path(path: &Path) -> Result<Self, io::Error> { + let canonicalized_path = path.canonicalize()?; + let contents = std::fs::read_to_string(&canonicalized_path).map_err(|err| { + io::Error::new( + io::ErrorKind::InvalidInput, + format!("target path {:?} is not a valid file: {}", canonicalized_path, err), + ) + })?; + let triple = canonicalized_path + .file_stem() + .expect("target path must not be empty") + .to_str() + .expect("target path must be valid unicode") + .to_owned(); + Ok(TargetTriple::TargetJson { path_for_rustdoc: canonicalized_path, triple, contents }) + } + + /// Returns a string triple for this target. + /// + /// If this target is a path, the file name (without extension) is returned. + pub fn triple(&self) -> &str { + match *self { + TargetTriple::TargetTriple(ref triple) + | TargetTriple::TargetJson { ref triple, .. } => triple, + } + } + + /// Returns an extended string triple for this target. + /// + /// If this target is a path, a hash of the path is appended to the triple returned + /// by `triple()`. + pub fn debug_triple(&self) -> String { + use std::collections::hash_map::DefaultHasher; + + match self { + TargetTriple::TargetTriple(triple) => triple.to_owned(), + TargetTriple::TargetJson { path_for_rustdoc: _, triple, contents: content } => { + let mut hasher = DefaultHasher::new(); + content.hash(&mut hasher); + let hash = hasher.finish(); + format!("{}-{}", triple, hash) + } + } + } +} + +impl fmt::Display for TargetTriple { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + write!(f, "{}", self.debug_triple()) + } +} diff --git a/compiler/rustc_target/src/spec/msp430_none_elf.rs b/compiler/rustc_target/src/spec/msp430_none_elf.rs new file mode 100644 index 000000000..6b09386ae --- /dev/null +++ b/compiler/rustc_target/src/spec/msp430_none_elf.rs @@ -0,0 +1,59 @@ +use crate::spec::{cvs, PanicStrategy, RelocModel, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "msp430-none-elf".into(), + pointer_width: 16, + data_layout: "e-m:e-p:16:16-i32:16-i64:16-f32:16-f64:16-a:8-n8:16-S16".into(), + arch: "msp430".into(), + + options: TargetOptions { + c_int_width: "16".into(), + + // The LLVM backend currently can't generate object files. To + // workaround this LLVM generates assembly files which then we feed + // to gcc to get object files. For this reason we have a hard + // dependency on this specific gcc. + asm_args: cvs!["-mcpu=msp430"], + linker: Some("msp430-elf-gcc".into()), + linker_is_gnu: false, + + // There are no atomic CAS instructions available in the MSP430 + // instruction set, and the LLVM backend doesn't currently support + // compiler fences so the Atomic* API is missing on this target. + // When the LLVM backend gains support for compile fences uncomment + // the `singlethread: true` line and set `max_atomic_width` to + // `Some(16)`. + max_atomic_width: Some(0), + atomic_cas: false, + // singlethread: true, + + // Because these devices have very little resources having an + // unwinder is too onerous so we default to "abort" because the + // "unwind" strategy is very rare. + panic_strategy: PanicStrategy::Abort, + + // Similarly, one almost always never wants to use relocatable + // code because of the extra costs it involves. + relocation_model: RelocModel::Static, + + // Right now we invoke an external assembler and this isn't + // compatible with multiple codegen units, and plus we probably + // don't want to invoke that many gcc instances. + default_codegen_units: Some(1), + + // Since MSP430 doesn't meaningfully support faulting on illegal + // instructions, LLVM generates a call to abort() function instead + // of a trap instruction. Such calls are 4 bytes long, and that is + // too much overhead for such small target. + trap_unreachable: false, + + // See the thumb_base.rs file for an explanation of this value + emit_debug_gdb_scripts: false, + + eh_frame_header: false, + + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/msvc_base.rs b/compiler/rustc_target/src/spec/msvc_base.rs new file mode 100644 index 000000000..edb30b72b --- /dev/null +++ b/compiler/rustc_target/src/spec/msvc_base.rs @@ -0,0 +1,24 @@ +use crate::spec::{LinkerFlavor, LldFlavor, SplitDebuginfo, TargetOptions}; + +pub fn opts() -> TargetOptions { + // Suppress the verbose logo and authorship debugging output, which would needlessly + // clog any log files. + let pre_link_args = TargetOptions::link_args(LinkerFlavor::Msvc, &["/NOLOGO"]); + + TargetOptions { + linker_flavor: LinkerFlavor::Msvc, + is_like_windows: true, + is_like_msvc: true, + lld_flavor: LldFlavor::Link, + linker_is_gnu: false, + pre_link_args, + abi_return_struct_as_int: true, + emit_debug_gdb_scripts: false, + + // Currently this is the only supported method of debuginfo on MSVC + // where `*.pdb` files show up next to the final artifact. + split_debuginfo: SplitDebuginfo::Packed, + + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/netbsd_base.rs b/compiler/rustc_target/src/spec/netbsd_base.rs new file mode 100644 index 000000000..be94ea234 --- /dev/null +++ b/compiler/rustc_target/src/spec/netbsd_base.rs @@ -0,0 +1,16 @@ +use crate::spec::{cvs, RelroLevel, TargetOptions}; + +pub fn opts() -> TargetOptions { + TargetOptions { + os: "netbsd".into(), + dynamic_linking: true, + families: cvs!["unix"], + no_default_libraries: false, + has_rpath: true, + position_independent_executables: true, + relro_level: RelroLevel::Full, + use_ctors_section: true, + default_dwarf_version: 2, + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/nvptx64_nvidia_cuda.rs b/compiler/rustc_target/src/spec/nvptx64_nvidia_cuda.rs new file mode 100644 index 000000000..1c5b68001 --- /dev/null +++ b/compiler/rustc_target/src/spec/nvptx64_nvidia_cuda.rs @@ -0,0 +1,53 @@ +use crate::spec::{LinkerFlavor, MergeFunctions, PanicStrategy, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + arch: "nvptx64".into(), + data_layout: "e-i64:64-i128:128-v16:16-v32:32-n16:32:64".into(), + llvm_target: "nvptx64-nvidia-cuda".into(), + pointer_width: 64, + + options: TargetOptions { + os: "cuda".into(), + vendor: "nvidia".into(), + linker_flavor: LinkerFlavor::PtxLinker, + // The linker can be installed from `crates.io`. + linker: Some("rust-ptx-linker".into()), + linker_is_gnu: false, + + // With `ptx-linker` approach, it can be later overridden via link flags. + cpu: "sm_30".into(), + + // FIXME: create tests for the atomics. + max_atomic_width: Some(64), + + // Unwinding on CUDA is neither feasible nor useful. + panic_strategy: PanicStrategy::Abort, + + // Needed to use `dylib` and `bin` crate types and the linker. + dynamic_linking: true, + + // Avoid using dylib because it contain metadata not supported + // by LLVM NVPTX backend. + only_cdylib: true, + + // Let the `ptx-linker` to handle LLVM lowering into MC / assembly. + obj_is_bitcode: true, + + // Convenient and predicable naming scheme. + dll_prefix: "".into(), + dll_suffix: ".ptx".into(), + exe_suffix: ".ptx".into(), + + // Disable MergeFunctions LLVM optimisation pass because it can + // produce kernel functions that call other kernel functions. + // This behavior is not supported by PTX ISA. + merge_functions: MergeFunctions::Disabled, + + // The LLVM backend does not support stack canaries for this target + supports_stack_protector: false, + + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/openbsd_base.rs b/compiler/rustc_target/src/spec/openbsd_base.rs new file mode 100644 index 000000000..e7db14e05 --- /dev/null +++ b/compiler/rustc_target/src/spec/openbsd_base.rs @@ -0,0 +1,16 @@ +use crate::spec::{cvs, FramePointer, RelroLevel, TargetOptions}; + +pub fn opts() -> TargetOptions { + TargetOptions { + os: "openbsd".into(), + dynamic_linking: true, + families: cvs!["unix"], + has_rpath: true, + abi_return_struct_as_int: true, + position_independent_executables: true, + frame_pointer: FramePointer::Always, // FIXME 43575: should be MayOmit... + relro_level: RelroLevel::Full, + default_dwarf_version: 2, + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/powerpc64_unknown_freebsd.rs b/compiler/rustc_target/src/spec/powerpc64_unknown_freebsd.rs new file mode 100644 index 000000000..803453c4a --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc64_unknown_freebsd.rs @@ -0,0 +1,17 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::freebsd_base::opts(); + base.cpu = "ppc64".into(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "powerpc64-unknown-freebsd".into(), + pointer_width: 64, + data_layout: "E-m:e-i64:64-n32:64".into(), + arch: "powerpc64".into(), + options: TargetOptions { endian: Endian::Big, mcount: "_mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs new file mode 100644 index 000000000..5413c4f33 --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc64_unknown_linux_gnu.rs @@ -0,0 +1,21 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, RelroLevel, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_gnu_base::opts(); + base.cpu = "ppc64".into(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + base.max_atomic_width = Some(64); + + // ld.so in at least RHEL6 on ppc64 has a bug related to BIND_NOW, so only enable partial RELRO + // for now. https://github.com/rust-lang/rust/pull/43170#issuecomment-315411474 + base.relro_level = RelroLevel::Partial; + + Target { + llvm_target: "powerpc64-unknown-linux-gnu".into(), + pointer_width: 64, + data_layout: "E-m:e-i64:64-n32:64-S128-v256:256:256-v512:512:512".into(), + arch: "powerpc64".into(), + options: TargetOptions { endian: Endian::Big, mcount: "_mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/powerpc64_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/powerpc64_unknown_linux_musl.rs new file mode 100644 index 000000000..159335eb6 --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc64_unknown_linux_musl.rs @@ -0,0 +1,17 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_musl_base::opts(); + base.cpu = "ppc64".into(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "powerpc64-unknown-linux-musl".into(), + pointer_width: 64, + data_layout: "E-m:e-i64:64-n32:64-S128-v256:256:256-v512:512:512".into(), + arch: "powerpc64".into(), + options: TargetOptions { endian: Endian::Big, mcount: "_mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/powerpc64_wrs_vxworks.rs b/compiler/rustc_target/src/spec/powerpc64_wrs_vxworks.rs new file mode 100644 index 000000000..b7420d232 --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc64_wrs_vxworks.rs @@ -0,0 +1,17 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::vxworks_base::opts(); + base.cpu = "ppc64".into(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "powerpc64-unknown-linux-gnu".into(), + pointer_width: 64, + data_layout: "E-m:e-i64:64-n32:64-S128-v256:256:256-v512:512:512".into(), + arch: "powerpc64".into(), + options: TargetOptions { endian: Endian::Big, ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/powerpc64le_unknown_freebsd.rs b/compiler/rustc_target/src/spec/powerpc64le_unknown_freebsd.rs new file mode 100644 index 000000000..a3d180043 --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc64le_unknown_freebsd.rs @@ -0,0 +1,16 @@ +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::freebsd_base::opts(); + base.cpu = "ppc64le".into(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "powerpc64le-unknown-freebsd".into(), + pointer_width: 64, + data_layout: "e-m:e-i64:64-n32:64".into(), + arch: "powerpc64".into(), + options: TargetOptions { mcount: "_mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_gnu.rs new file mode 100644 index 000000000..e18ff3be4 --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_gnu.rs @@ -0,0 +1,16 @@ +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_gnu_base::opts(); + base.cpu = "ppc64le".into(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "powerpc64le-unknown-linux-gnu".into(), + pointer_width: 64, + data_layout: "e-m:e-i64:64-n32:64-S128-v256:256:256-v512:512:512".into(), + arch: "powerpc64".into(), + options: TargetOptions { mcount: "_mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_musl.rs new file mode 100644 index 000000000..b84943d23 --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc64le_unknown_linux_musl.rs @@ -0,0 +1,16 @@ +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_musl_base::opts(); + base.cpu = "ppc64le".into(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "powerpc64le-unknown-linux-musl".into(), + pointer_width: 64, + data_layout: "e-m:e-i64:64-n32:64-S128-v256:256:256-v512:512:512".into(), + arch: "powerpc64".into(), + options: TargetOptions { mcount: "_mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/powerpc_unknown_freebsd.rs b/compiler/rustc_target/src/spec/powerpc_unknown_freebsd.rs new file mode 100644 index 000000000..516b2de37 --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc_unknown_freebsd.rs @@ -0,0 +1,23 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, RelocModel, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::freebsd_base::opts(); + // Extra hint to linker that we are generating secure-PLT code. + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m32", "--target=powerpc-unknown-freebsd13.0"]); + base.max_atomic_width = Some(32); + + Target { + llvm_target: "powerpc-unknown-freebsd13.0".into(), + pointer_width: 32, + data_layout: "E-m:e-p:32:32-i64:64-n32".into(), + arch: "powerpc".into(), + options: TargetOptions { + endian: Endian::Big, + features: "+secure-plt".into(), + relocation_model: RelocModel::Pic, + mcount: "_mcount".into(), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/powerpc_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/powerpc_unknown_linux_gnu.rs new file mode 100644 index 000000000..6686a0bbf --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc_unknown_linux_gnu.rs @@ -0,0 +1,16 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_gnu_base::opts(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m32"]); + base.max_atomic_width = Some(32); + + Target { + llvm_target: "powerpc-unknown-linux-gnu".into(), + pointer_width: 32, + data_layout: "E-m:e-p:32:32-i64:64-n32".into(), + arch: "powerpc".into(), + options: TargetOptions { endian: Endian::Big, mcount: "_mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/powerpc_unknown_linux_gnuspe.rs b/compiler/rustc_target/src/spec/powerpc_unknown_linux_gnuspe.rs new file mode 100644 index 000000000..6a250f4b5 --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc_unknown_linux_gnuspe.rs @@ -0,0 +1,21 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_gnu_base::opts(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-mspe"]); + base.max_atomic_width = Some(32); + + Target { + llvm_target: "powerpc-unknown-linux-gnuspe".into(), + pointer_width: 32, + data_layout: "E-m:e-p:32:32-i64:64-n32".into(), + arch: "powerpc".into(), + options: TargetOptions { + abi: "spe".into(), + endian: Endian::Big, + mcount: "_mcount".into(), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/powerpc_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/powerpc_unknown_linux_musl.rs new file mode 100644 index 000000000..34200c679 --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc_unknown_linux_musl.rs @@ -0,0 +1,16 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::linux_musl_base::opts(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m32"]); + base.max_atomic_width = Some(32); + + Target { + llvm_target: "powerpc-unknown-linux-musl".into(), + pointer_width: 32, + data_layout: "E-m:e-p:32:32-i64:64-n32".into(), + arch: "powerpc".into(), + options: TargetOptions { endian: Endian::Big, mcount: "_mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/powerpc_unknown_netbsd.rs b/compiler/rustc_target/src/spec/powerpc_unknown_netbsd.rs new file mode 100644 index 000000000..60661ef9b --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc_unknown_netbsd.rs @@ -0,0 +1,16 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::netbsd_base::opts(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m32"]); + base.max_atomic_width = Some(32); + + Target { + llvm_target: "powerpc-unknown-netbsd".into(), + pointer_width: 32, + data_layout: "E-m:e-p:32:32-i64:64-n32".into(), + arch: "powerpc".into(), + options: TargetOptions { endian: Endian::Big, mcount: "__mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/powerpc_unknown_openbsd.rs b/compiler/rustc_target/src/spec/powerpc_unknown_openbsd.rs new file mode 100644 index 000000000..ad2c3d40f --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc_unknown_openbsd.rs @@ -0,0 +1,16 @@ +use crate::abi::Endian; +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::openbsd_base::opts(); + base.endian = Endian::Big; + base.max_atomic_width = Some(32); + + Target { + llvm_target: "powerpc-unknown-openbsd".into(), + pointer_width: 32, + data_layout: "E-m:e-p:32:32-i64:64-n32".into(), + arch: "powerpc".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/powerpc_wrs_vxworks.rs b/compiler/rustc_target/src/spec/powerpc_wrs_vxworks.rs new file mode 100644 index 000000000..3f24966e0 --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc_wrs_vxworks.rs @@ -0,0 +1,16 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::vxworks_base::opts(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m32", "--secure-plt"]); + base.max_atomic_width = Some(32); + + Target { + llvm_target: "powerpc-unknown-linux-gnu".into(), + pointer_width: 32, + data_layout: "E-m:e-p:32:32-i64:64-n32".into(), + arch: "powerpc".into(), + options: TargetOptions { endian: Endian::Big, features: "+secure-plt".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/powerpc_wrs_vxworks_spe.rs b/compiler/rustc_target/src/spec/powerpc_wrs_vxworks_spe.rs new file mode 100644 index 000000000..0f04f41f9 --- /dev/null +++ b/compiler/rustc_target/src/spec/powerpc_wrs_vxworks_spe.rs @@ -0,0 +1,22 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::vxworks_base::opts(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-mspe", "--secure-plt"]); + base.max_atomic_width = Some(32); + + Target { + llvm_target: "powerpc-unknown-linux-gnuspe".into(), + pointer_width: 32, + data_layout: "E-m:e-p:32:32-i64:64-n32".into(), + arch: "powerpc".into(), + options: TargetOptions { + abi: "spe".into(), + endian: Endian::Big, + // feature msync would disable instruction 'fsync' which is not supported by fsl_p1p2 + features: "+secure-plt,+msync".into(), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/redox_base.rs b/compiler/rustc_target/src/spec/redox_base.rs new file mode 100644 index 000000000..468fe4785 --- /dev/null +++ b/compiler/rustc_target/src/spec/redox_base.rs @@ -0,0 +1,17 @@ +use crate::spec::{cvs, RelroLevel, TargetOptions}; + +pub fn opts() -> TargetOptions { + TargetOptions { + os: "redox".into(), + env: "relibc".into(), + dynamic_linking: true, + families: cvs!["unix"], + has_rpath: true, + position_independent_executables: true, + relro_level: RelroLevel::Full, + has_thread_local: true, + crt_static_default: true, + crt_static_respected: true, + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/riscv32gc_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/riscv32gc_unknown_linux_gnu.rs new file mode 100644 index 000000000..bffd377bc --- /dev/null +++ b/compiler/rustc_target/src/spec/riscv32gc_unknown_linux_gnu.rs @@ -0,0 +1,18 @@ +use crate::spec::{CodeModel, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "riscv32-unknown-linux-gnu".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-i64:64-n32-S128".into(), + arch: "riscv32".into(), + options: TargetOptions { + code_model: Some(CodeModel::Medium), + cpu: "generic-rv32".into(), + features: "+m,+a,+f,+d,+c".into(), + llvm_abiname: "ilp32d".into(), + max_atomic_width: Some(32), + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/riscv32gc_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/riscv32gc_unknown_linux_musl.rs new file mode 100644 index 000000000..c9f3acffb --- /dev/null +++ b/compiler/rustc_target/src/spec/riscv32gc_unknown_linux_musl.rs @@ -0,0 +1,18 @@ +use crate::spec::{CodeModel, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "riscv32-unknown-linux-musl".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-i64:64-n32-S128".into(), + arch: "riscv32".into(), + options: TargetOptions { + code_model: Some(CodeModel::Medium), + cpu: "generic-rv32".into(), + features: "+m,+a,+f,+d,+c".into(), + llvm_abiname: "ilp32d".into(), + max_atomic_width: Some(32), + ..super::linux_musl_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/riscv32i_unknown_none_elf.rs b/compiler/rustc_target/src/spec/riscv32i_unknown_none_elf.rs new file mode 100644 index 000000000..232139db6 --- /dev/null +++ b/compiler/rustc_target/src/spec/riscv32i_unknown_none_elf.rs @@ -0,0 +1,24 @@ +use crate::spec::{LinkerFlavor, LldFlavor, PanicStrategy, RelocModel}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + data_layout: "e-m:e-p:32:32-i64:64-n32-S128".into(), + llvm_target: "riscv32".into(), + pointer_width: 32, + arch: "riscv32".into(), + + options: TargetOptions { + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + cpu: "generic-rv32".into(), + max_atomic_width: Some(0), + atomic_cas: false, + panic_strategy: PanicStrategy::Abort, + relocation_model: RelocModel::Static, + emit_debug_gdb_scripts: false, + eh_frame_header: false, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/riscv32im_unknown_none_elf.rs b/compiler/rustc_target/src/spec/riscv32im_unknown_none_elf.rs new file mode 100644 index 000000000..3e5d2887f --- /dev/null +++ b/compiler/rustc_target/src/spec/riscv32im_unknown_none_elf.rs @@ -0,0 +1,25 @@ +use crate::spec::{LinkerFlavor, LldFlavor, PanicStrategy, RelocModel}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + data_layout: "e-m:e-p:32:32-i64:64-n32-S128".into(), + llvm_target: "riscv32".into(), + pointer_width: 32, + arch: "riscv32".into(), + + options: TargetOptions { + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + cpu: "generic-rv32".into(), + max_atomic_width: Some(0), + atomic_cas: false, + features: "+m".into(), + panic_strategy: PanicStrategy::Abort, + relocation_model: RelocModel::Static, + emit_debug_gdb_scripts: false, + eh_frame_header: false, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/riscv32imac_unknown_none_elf.rs b/compiler/rustc_target/src/spec/riscv32imac_unknown_none_elf.rs new file mode 100644 index 000000000..99317b9f1 --- /dev/null +++ b/compiler/rustc_target/src/spec/riscv32imac_unknown_none_elf.rs @@ -0,0 +1,24 @@ +use crate::spec::{LinkerFlavor, LldFlavor, PanicStrategy, RelocModel}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + data_layout: "e-m:e-p:32:32-i64:64-n32-S128".into(), + llvm_target: "riscv32".into(), + pointer_width: 32, + arch: "riscv32".into(), + + options: TargetOptions { + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + cpu: "generic-rv32".into(), + max_atomic_width: Some(32), + features: "+m,+a,+c".into(), + panic_strategy: PanicStrategy::Abort, + relocation_model: RelocModel::Static, + emit_debug_gdb_scripts: false, + eh_frame_header: false, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/riscv32imac_unknown_xous_elf.rs b/compiler/rustc_target/src/spec/riscv32imac_unknown_xous_elf.rs new file mode 100644 index 000000000..a5de645c9 --- /dev/null +++ b/compiler/rustc_target/src/spec/riscv32imac_unknown_xous_elf.rs @@ -0,0 +1,23 @@ +use crate::spec::{LinkerFlavor, LldFlavor, PanicStrategy, RelocModel}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + data_layout: "e-m:e-p:32:32-i64:64-n32-S128".into(), + llvm_target: "riscv32".into(), + pointer_width: 32, + arch: "riscv32".into(), + + options: TargetOptions { + os: "xous".into(), + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + cpu: "generic-rv32".into(), + max_atomic_width: Some(32), + features: "+m,+a,+c".into(), + panic_strategy: PanicStrategy::Abort, + relocation_model: RelocModel::Static, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/riscv32imc_esp_espidf.rs b/compiler/rustc_target/src/spec/riscv32imc_esp_espidf.rs new file mode 100644 index 000000000..03baef65c --- /dev/null +++ b/compiler/rustc_target/src/spec/riscv32imc_esp_espidf.rs @@ -0,0 +1,36 @@ +use crate::spec::{cvs, Target, TargetOptions}; +use crate::spec::{LinkerFlavor, PanicStrategy, RelocModel}; + +pub fn target() -> Target { + Target { + data_layout: "e-m:e-p:32:32-i64:64-n32-S128".into(), + llvm_target: "riscv32".into(), + pointer_width: 32, + arch: "riscv32".into(), + + options: TargetOptions { + families: cvs!["unix"], + os: "espidf".into(), + env: "newlib".into(), + vendor: "espressif".into(), + linker_flavor: LinkerFlavor::Gcc, + linker: Some("riscv32-esp-elf-gcc".into()), + cpu: "generic-rv32".into(), + + // While the RiscV32IMC architecture does not natively support atomics, ESP-IDF does support + // the __atomic* and __sync* GCC builtins, so setting `max_atomic_width` to `Some(64)` + // and `atomic_cas` to `true` will cause the compiler to emit libcalls to these builtins. + // + // Support for atomics is necessary for the Rust STD library, which is supported by the ESP-IDF framework. + max_atomic_width: Some(64), + atomic_cas: true, + + features: "+m,+c".into(), + panic_strategy: PanicStrategy::Abort, + relocation_model: RelocModel::Static, + emit_debug_gdb_scripts: false, + eh_frame_header: false, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/riscv32imc_unknown_none_elf.rs b/compiler/rustc_target/src/spec/riscv32imc_unknown_none_elf.rs new file mode 100644 index 000000000..bf510d204 --- /dev/null +++ b/compiler/rustc_target/src/spec/riscv32imc_unknown_none_elf.rs @@ -0,0 +1,25 @@ +use crate::spec::{LinkerFlavor, LldFlavor, PanicStrategy, RelocModel}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + data_layout: "e-m:e-p:32:32-i64:64-n32-S128".into(), + llvm_target: "riscv32".into(), + pointer_width: 32, + arch: "riscv32".into(), + + options: TargetOptions { + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + cpu: "generic-rv32".into(), + max_atomic_width: Some(0), + atomic_cas: false, + features: "+m,+c".into(), + panic_strategy: PanicStrategy::Abort, + relocation_model: RelocModel::Static, + emit_debug_gdb_scripts: false, + eh_frame_header: false, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/riscv64gc_unknown_freebsd.rs b/compiler/rustc_target/src/spec/riscv64gc_unknown_freebsd.rs new file mode 100644 index 000000000..0539eca6c --- /dev/null +++ b/compiler/rustc_target/src/spec/riscv64gc_unknown_freebsd.rs @@ -0,0 +1,18 @@ +use crate::spec::{CodeModel, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "riscv64-unknown-freebsd".into(), + pointer_width: 64, + data_layout: "e-m:e-p:64:64-i64:64-i128:128-n64-S128".into(), + arch: "riscv64".into(), + options: TargetOptions { + code_model: Some(CodeModel::Medium), + cpu: "generic-rv64".into(), + features: "+m,+a,+f,+d,+c".into(), + llvm_abiname: "lp64d".into(), + max_atomic_width: Some(64), + ..super::freebsd_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/riscv64gc_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/riscv64gc_unknown_linux_gnu.rs new file mode 100644 index 000000000..7d1bf228c --- /dev/null +++ b/compiler/rustc_target/src/spec/riscv64gc_unknown_linux_gnu.rs @@ -0,0 +1,18 @@ +use crate::spec::{CodeModel, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "riscv64-unknown-linux-gnu".into(), + pointer_width: 64, + data_layout: "e-m:e-p:64:64-i64:64-i128:128-n64-S128".into(), + arch: "riscv64".into(), + options: TargetOptions { + code_model: Some(CodeModel::Medium), + cpu: "generic-rv64".into(), + features: "+m,+a,+f,+d,+c".into(), + llvm_abiname: "lp64d".into(), + max_atomic_width: Some(64), + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/riscv64gc_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/riscv64gc_unknown_linux_musl.rs new file mode 100644 index 000000000..f04f8a48b --- /dev/null +++ b/compiler/rustc_target/src/spec/riscv64gc_unknown_linux_musl.rs @@ -0,0 +1,18 @@ +use crate::spec::{CodeModel, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "riscv64-unknown-linux-musl".into(), + pointer_width: 64, + data_layout: "e-m:e-p:64:64-i64:64-i128:128-n64-S128".into(), + arch: "riscv64".into(), + options: TargetOptions { + code_model: Some(CodeModel::Medium), + cpu: "generic-rv64".into(), + features: "+m,+a,+f,+d,+c".into(), + llvm_abiname: "lp64d".into(), + max_atomic_width: Some(64), + ..super::linux_musl_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/riscv64gc_unknown_none_elf.rs b/compiler/rustc_target/src/spec/riscv64gc_unknown_none_elf.rs new file mode 100644 index 000000000..03b3cfd1e --- /dev/null +++ b/compiler/rustc_target/src/spec/riscv64gc_unknown_none_elf.rs @@ -0,0 +1,26 @@ +use crate::spec::{CodeModel, LinkerFlavor, LldFlavor, PanicStrategy, RelocModel}; +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + data_layout: "e-m:e-p:64:64-i64:64-i128:128-n64-S128".into(), + llvm_target: "riscv64".into(), + pointer_width: 64, + arch: "riscv64".into(), + + options: TargetOptions { + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + llvm_abiname: "lp64d".into(), + cpu: "generic-rv64".into(), + max_atomic_width: Some(64), + features: "+m,+a,+f,+d,+c".into(), + panic_strategy: PanicStrategy::Abort, + relocation_model: RelocModel::Static, + code_model: Some(CodeModel::Medium), + emit_debug_gdb_scripts: false, + eh_frame_header: false, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/riscv64imac_unknown_none_elf.rs b/compiler/rustc_target/src/spec/riscv64imac_unknown_none_elf.rs new file mode 100644 index 000000000..2a94c9dd2 --- /dev/null +++ b/compiler/rustc_target/src/spec/riscv64imac_unknown_none_elf.rs @@ -0,0 +1,25 @@ +use crate::spec::{CodeModel, Target, TargetOptions}; +use crate::spec::{LinkerFlavor, LldFlavor, PanicStrategy, RelocModel}; + +pub fn target() -> Target { + Target { + data_layout: "e-m:e-p:64:64-i64:64-i128:128-n64-S128".into(), + llvm_target: "riscv64".into(), + pointer_width: 64, + arch: "riscv64".into(), + + options: TargetOptions { + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + cpu: "generic-rv64".into(), + max_atomic_width: Some(64), + features: "+m,+a,+c".into(), + panic_strategy: PanicStrategy::Abort, + relocation_model: RelocModel::Static, + code_model: Some(CodeModel::Medium), + emit_debug_gdb_scripts: false, + eh_frame_header: false, + ..Default::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/s390x_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/s390x_unknown_linux_gnu.rs new file mode 100644 index 000000000..8757bbed8 --- /dev/null +++ b/compiler/rustc_target/src/spec/s390x_unknown_linux_gnu.rs @@ -0,0 +1,23 @@ +use crate::abi::Endian; +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::linux_gnu_base::opts(); + base.endian = Endian::Big; + // z10 is the oldest CPU supported by LLVM + base.cpu = "z10".into(); + // FIXME: The data_layout string below and the ABI implementation in + // cabi_s390x.rs are for now hard-coded to assume the no-vector ABI. + // Pass the -vector feature string to LLVM to respect this assumption. + base.features = "-vector".into(); + base.max_atomic_width = Some(64); + base.min_global_align = Some(16); + + Target { + llvm_target: "s390x-unknown-linux-gnu".into(), + pointer_width: 64, + data_layout: "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-a:8:16-n32:64".into(), + arch: "s390x".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/s390x_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/s390x_unknown_linux_musl.rs new file mode 100644 index 000000000..4c855271a --- /dev/null +++ b/compiler/rustc_target/src/spec/s390x_unknown_linux_musl.rs @@ -0,0 +1,24 @@ +use crate::abi::Endian; +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::linux_musl_base::opts(); + base.endian = Endian::Big; + // z10 is the oldest CPU supported by LLVM + base.cpu = "z10".into(); + // FIXME: The data_layout string below and the ABI implementation in + // cabi_s390x.rs are for now hard-coded to assume the no-vector ABI. + // Pass the -vector feature string to LLVM to respect this assumption. + base.features = "-vector".into(); + base.max_atomic_width = Some(64); + base.min_global_align = Some(16); + base.static_position_independent_executables = true; + + Target { + llvm_target: "s390x-unknown-linux-musl".into(), + pointer_width: 64, + data_layout: "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-a:8:16-n32:64".into(), + arch: "s390x".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/solaris_base.rs b/compiler/rustc_target/src/spec/solaris_base.rs new file mode 100644 index 000000000..b7e8e8cf7 --- /dev/null +++ b/compiler/rustc_target/src/spec/solaris_base.rs @@ -0,0 +1,16 @@ +use crate::spec::{cvs, TargetOptions}; + +pub fn opts() -> TargetOptions { + TargetOptions { + os: "solaris".into(), + dynamic_linking: true, + has_rpath: true, + families: cvs!["unix"], + is_like_solaris: true, + linker_is_gnu: false, + limit_rdylib_exports: false, // Linker doesn't support this + eh_frame_header: false, + + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/solid_base.rs b/compiler/rustc_target/src/spec/solid_base.rs new file mode 100644 index 000000000..c585a6cd5 --- /dev/null +++ b/compiler/rustc_target/src/spec/solid_base.rs @@ -0,0 +1,13 @@ +use super::FramePointer; +use crate::spec::TargetOptions; + +pub fn opts(kernel: &str) -> TargetOptions { + TargetOptions { + os: format!("solid_{}", kernel).into(), + vendor: "kmc".into(), + executables: false, + frame_pointer: FramePointer::NonLeaf, + has_thread_local: true, + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/sparc64_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/sparc64_unknown_linux_gnu.rs new file mode 100644 index 000000000..39efd8f30 --- /dev/null +++ b/compiler/rustc_target/src/spec/sparc64_unknown_linux_gnu.rs @@ -0,0 +1,17 @@ +use crate::abi::Endian; +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::linux_gnu_base::opts(); + base.endian = Endian::Big; + base.cpu = "v9".into(); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "sparc64-unknown-linux-gnu".into(), + pointer_width: 64, + data_layout: "E-m:e-i64:64-n32:64-S128".into(), + arch: "sparc64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/sparc64_unknown_netbsd.rs b/compiler/rustc_target/src/spec/sparc64_unknown_netbsd.rs new file mode 100644 index 000000000..836ab0e37 --- /dev/null +++ b/compiler/rustc_target/src/spec/sparc64_unknown_netbsd.rs @@ -0,0 +1,17 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::netbsd_base::opts(); + base.cpu = "v9".into(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "sparc64-unknown-netbsd".into(), + pointer_width: 64, + data_layout: "E-m:e-i64:64-n32:64-S128".into(), + arch: "sparc64".into(), + options: TargetOptions { endian: Endian::Big, mcount: "__mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/sparc64_unknown_openbsd.rs b/compiler/rustc_target/src/spec/sparc64_unknown_openbsd.rs new file mode 100644 index 000000000..4a192df39 --- /dev/null +++ b/compiler/rustc_target/src/spec/sparc64_unknown_openbsd.rs @@ -0,0 +1,18 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, Target}; + +pub fn target() -> Target { + let mut base = super::openbsd_base::opts(); + base.endian = Endian::Big; + base.cpu = "v9".into(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "sparc64-unknown-openbsd".into(), + pointer_width: 64, + data_layout: "E-m:e-i64:64-n32:64-S128".into(), + arch: "sparc64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/sparc_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/sparc_unknown_linux_gnu.rs new file mode 100644 index 000000000..ea4fafa4b --- /dev/null +++ b/compiler/rustc_target/src/spec/sparc_unknown_linux_gnu.rs @@ -0,0 +1,18 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, Target}; + +pub fn target() -> Target { + let mut base = super::linux_gnu_base::opts(); + base.endian = Endian::Big; + base.cpu = "v9".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-mv8plus"]); + + Target { + llvm_target: "sparc-unknown-linux-gnu".into(), + pointer_width: 32, + data_layout: "E-m:e-p:32:32-i64:64-f128:64-n32-S64".into(), + arch: "sparc".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/sparcv9_sun_solaris.rs b/compiler/rustc_target/src/spec/sparcv9_sun_solaris.rs new file mode 100644 index 000000000..aac09181a --- /dev/null +++ b/compiler/rustc_target/src/spec/sparcv9_sun_solaris.rs @@ -0,0 +1,24 @@ +use crate::abi::Endian; +use crate::spec::{LinkerFlavor, Target}; + +pub fn target() -> Target { + let mut base = super::solaris_base::opts(); + base.endian = Endian::Big; + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + // llvm calls this "v9" + base.cpu = "v9".into(); + base.vendor = "sun".into(); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "sparcv9-sun-solaris".into(), + pointer_width: 64, + data_layout: "E-m:e-i64:64-n32:64-S128".into(), + // Use "sparc64" instead of "sparcv9" here, since the former is already + // used widely in the source base. If we ever needed ABI + // differentiation from the sparc64, we could, but that would probably + // just be confusing. + arch: "sparc64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/tests/tests_impl.rs b/compiler/rustc_target/src/spec/tests/tests_impl.rs new file mode 100644 index 000000000..1db6db78b --- /dev/null +++ b/compiler/rustc_target/src/spec/tests/tests_impl.rs @@ -0,0 +1,135 @@ +use super::super::*; +use std::assert_matches::assert_matches; + +// Test target self-consistency and JSON encoding/decoding roundtrip. +pub(super) fn test_target(target: Target) { + target.check_consistency(); + assert_eq!(Target::from_json(target.to_json()).map(|(j, _)| j), Ok(target)); +} + +impl Target { + fn check_consistency(&self) { + assert_eq!(self.is_like_osx, self.vendor == "apple"); + assert_eq!(self.is_like_solaris, self.os == "solaris" || self.os == "illumos"); + assert_eq!(self.is_like_windows, self.os == "windows" || self.os == "uefi"); + assert_eq!(self.is_like_wasm, self.arch == "wasm32" || self.arch == "wasm64"); + assert!(self.is_like_windows || !self.is_like_msvc); + + // Check that default linker flavor and lld flavor are compatible + // with some other key properties. + assert_eq!(self.is_like_osx, matches!(self.lld_flavor, LldFlavor::Ld64)); + assert_eq!(self.is_like_msvc, matches!(self.lld_flavor, LldFlavor::Link)); + assert_eq!(self.is_like_wasm, matches!(self.lld_flavor, LldFlavor::Wasm)); + assert_eq!(self.os == "l4re", matches!(self.linker_flavor, LinkerFlavor::L4Bender)); + assert_eq!(self.os == "emscripten", matches!(self.linker_flavor, LinkerFlavor::Em)); + assert_eq!(self.arch == "bpf", matches!(self.linker_flavor, LinkerFlavor::BpfLinker)); + assert_eq!(self.arch == "nvptx64", matches!(self.linker_flavor, LinkerFlavor::PtxLinker)); + + for args in [ + &self.pre_link_args, + &self.late_link_args, + &self.late_link_args_dynamic, + &self.late_link_args_static, + &self.post_link_args, + ] { + for (&flavor, flavor_args) in args { + assert!(!flavor_args.is_empty()); + // Check that flavors mentioned in link args are compatible with the default flavor. + match (self.linker_flavor, self.lld_flavor) { + ( + LinkerFlavor::Ld | LinkerFlavor::Lld(LldFlavor::Ld) | LinkerFlavor::Gcc, + LldFlavor::Ld, + ) => { + assert_matches!( + flavor, + LinkerFlavor::Ld | LinkerFlavor::Lld(LldFlavor::Ld) | LinkerFlavor::Gcc + ) + } + (LinkerFlavor::Gcc, LldFlavor::Ld64) => { + assert_matches!( + flavor, + LinkerFlavor::Lld(LldFlavor::Ld64) | LinkerFlavor::Gcc + ) + } + (LinkerFlavor::Msvc | LinkerFlavor::Lld(LldFlavor::Link), LldFlavor::Link) => { + assert_matches!( + flavor, + LinkerFlavor::Msvc | LinkerFlavor::Lld(LldFlavor::Link) + ) + } + (LinkerFlavor::Lld(LldFlavor::Wasm) | LinkerFlavor::Gcc, LldFlavor::Wasm) => { + assert_matches!( + flavor, + LinkerFlavor::Lld(LldFlavor::Wasm) | LinkerFlavor::Gcc + ) + } + (LinkerFlavor::L4Bender, LldFlavor::Ld) => { + assert_matches!(flavor, LinkerFlavor::L4Bender) + } + (LinkerFlavor::Em, LldFlavor::Wasm) => { + assert_matches!(flavor, LinkerFlavor::Em) + } + (LinkerFlavor::BpfLinker, LldFlavor::Ld) => { + assert_matches!(flavor, LinkerFlavor::BpfLinker) + } + (LinkerFlavor::PtxLinker, LldFlavor::Ld) => { + assert_matches!(flavor, LinkerFlavor::PtxLinker) + } + flavors => unreachable!("unexpected flavor combination: {:?}", flavors), + } + + // Check that link args for cc and non-cc versions of flavors are consistent. + let check_noncc = |noncc_flavor| { + if let Some(noncc_args) = args.get(&noncc_flavor) { + for arg in flavor_args { + if let Some(suffix) = arg.strip_prefix("-Wl,") { + assert!(noncc_args.iter().any(|a| a == suffix)); + } + } + } + }; + match self.linker_flavor { + LinkerFlavor::Gcc => match self.lld_flavor { + LldFlavor::Ld => { + check_noncc(LinkerFlavor::Ld); + check_noncc(LinkerFlavor::Lld(LldFlavor::Ld)); + } + LldFlavor::Wasm => check_noncc(LinkerFlavor::Lld(LldFlavor::Wasm)), + LldFlavor::Ld64 | LldFlavor::Link => {} + }, + _ => {} + } + } + + // Check that link args for lld and non-lld versions of flavors are consistent. + assert_eq!(args.get(&LinkerFlavor::Ld), args.get(&LinkerFlavor::Lld(LldFlavor::Ld))); + assert_eq!( + args.get(&LinkerFlavor::Msvc), + args.get(&LinkerFlavor::Lld(LldFlavor::Link)), + ); + } + + assert!( + (self.pre_link_objects_fallback.is_empty() + && self.post_link_objects_fallback.is_empty()) + || self.crt_objects_fallback.is_some() + ); + + // If your target really needs to deviate from the rules below, + // except it and document the reasons. + // Keep the default "unknown" vendor instead. + assert_ne!(self.vendor, ""); + if !self.can_use_os_unknown() { + // Keep the default "none" for bare metal targets instead. + assert_ne!(self.os, "unknown"); + } + } + + // Add your target to the whitelist if it has `std` library + // and you certainly want "unknown" for the OS name. + fn can_use_os_unknown(&self) -> bool { + self.llvm_target == "wasm32-unknown-unknown" + || self.llvm_target == "wasm64-unknown-unknown" + || (self.env == "sgx" && self.vendor == "fortanix") + } +} diff --git a/compiler/rustc_target/src/spec/thumb_base.rs b/compiler/rustc_target/src/spec/thumb_base.rs new file mode 100644 index 000000000..049142b89 --- /dev/null +++ b/compiler/rustc_target/src/spec/thumb_base.rs @@ -0,0 +1,60 @@ +// These `thumbv*` targets cover the ARM Cortex-M family of processors which are widely used in +// microcontrollers. Namely, all these processors: +// +// - Cortex-M0 +// - Cortex-M0+ +// - Cortex-M1 +// - Cortex-M3 +// - Cortex-M4(F) +// - Cortex-M7(F) +// - Cortex-M23 +// - Cortex-M33 +// +// We have opted for these instead of one target per processor (e.g., `cortex-m0`, `cortex-m3`, +// etc) because the differences between some processors like the cortex-m0 and cortex-m1 are almost +// non-existent from the POV of codegen so it doesn't make sense to have separate targets for them. +// And if differences exist between two processors under the same target, rustc flags can be used to +// optimize for one processor or the other. +// +// Also, we have not chosen a single target (`arm-none-eabi`) like GCC does because this makes +// difficult to integrate Rust code and C code. Targeting the Cortex-M4 requires different gcc flags +// than the ones you would use for the Cortex-M0 and with a single target it'd be impossible to +// differentiate one processor from the other. +// +// About arm vs thumb in the name. The Cortex-M devices only support the Thumb instruction set, +// which is more compact (higher code density), and not the ARM instruction set. That's why LLVM +// triples use thumb instead of arm. We follow suit because having thumb in the name let us +// differentiate these targets from our other `arm(v7)-*-*-gnueabi(hf)` targets in the context of +// build scripts / gcc flags. + +use crate::spec::TargetOptions; +use crate::spec::{FramePointer, LinkerFlavor, LldFlavor, PanicStrategy, RelocModel}; + +pub fn opts() -> TargetOptions { + // See rust-lang/rfcs#1645 for a discussion about these defaults + TargetOptions { + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + // In most cases, LLD is good enough + linker: Some("rust-lld".into()), + // Because these devices have very little resources having an unwinder is too onerous so we + // default to "abort" because the "unwind" strategy is very rare. + panic_strategy: PanicStrategy::Abort, + // Similarly, one almost always never wants to use relocatable code because of the extra + // costs it involves. + relocation_model: RelocModel::Static, + // When this section is added a volatile load to its start address is also generated. This + // volatile load is a footgun as it can end up loading an invalid memory address, depending + // on how the user set up their linker scripts. This section adds pretty printer for stuff + // like std::Vec, which is not that used in no-std context, so it's best to left it out + // until we figure a way to add the pretty printers without requiring a volatile load cf. + // rust-lang/rust#44993. + emit_debug_gdb_scripts: false, + // LLVM is eager to trash the link register when calling `noreturn` functions, which + // breaks debugging. Preserve LR by default to prevent that from happening. + frame_pointer: FramePointer::Always, + // ARM supports multiple ABIs for enums, the linux one matches the default of 32 here + // but any arm-none or thumb-none target will be defaulted to 8 on GCC and clang + c_enum_min_bits: 8, + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/thumbv4t_none_eabi.rs b/compiler/rustc_target/src/spec/thumbv4t_none_eabi.rs new file mode 100644 index 000000000..7125d141a --- /dev/null +++ b/compiler/rustc_target/src/spec/thumbv4t_none_eabi.rs @@ -0,0 +1,69 @@ +//! Targets the ARMv4T, with code as `t32` code by default. +//! +//! Primarily of use for the GBA, but usable with other devices too. +//! +//! Please ping @Lokathor if changes are needed. +//! +//! This target profile assumes that you have the ARM binutils in your path +//! (specifically the linker, `arm-none-eabi-ld`). They can be obtained for free +//! for all major OSes from the ARM developer's website, and they may also be +//! available in your system's package manager. Unfortunately, the standard +//! linker that Rust uses (`lld`) only supports as far back as `ARMv5TE`, so we +//! must use the GNU `ld` linker. +//! +//! **Important:** This target profile **does not** specify a linker script. You +//! just get the default link script when you build a binary for this target. +//! The default link script is very likely wrong, so you should use +//! `-Clink-arg=-Tmy_script.ld` to override that with a correct linker script. + +use crate::spec::{ + cvs, FramePointer, LinkerFlavor, PanicStrategy, RelocModel, Target, TargetOptions, +}; + +pub fn target() -> Target { + Target { + llvm_target: "thumbv4t-none-eabi".into(), + pointer_width: 32, + arch: "arm".into(), + /* Data layout args are '-' separated: + * little endian + * stack is 64-bit aligned (EABI) + * pointers are 32-bit + * i64 must be 64-bit aligned (EABI) + * mangle names with ELF style + * native integers are 32-bit + * All other elements are default + */ + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + options: TargetOptions { + abi: "eabi".into(), + linker_flavor: LinkerFlavor::Ld, + linker: Some("arm-none-eabi-ld".into()), + + // extra args passed to the external assembler (assuming `arm-none-eabi-as`): + // * activate t32/a32 interworking + // * use arch ARMv4T + // * use little-endian + asm_args: cvs!["-mthumb-interwork", "-march=armv4t", "-mlittle-endian",], + + // minimum extra features, these cannot be disabled via -C + features: "+soft-float,+strict-align".into(), + + panic_strategy: PanicStrategy::Abort, + relocation_model: RelocModel::Static, + // suggested from thumb_base, rust-lang/rust#44993. + emit_debug_gdb_scripts: false, + // suggested from thumb_base, with no-os gcc/clang use 8-bit enums + c_enum_min_bits: 8, + frame_pointer: FramePointer::MayOmit, + + main_needs_argc_argv: false, + + // don't have atomic compare-and-swap + atomic_cas: false, + has_thumb_interworking: true, + + ..super::thumb_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/thumbv6m_none_eabi.rs b/compiler/rustc_target/src/spec/thumbv6m_none_eabi.rs new file mode 100644 index 000000000..2546ab9b7 --- /dev/null +++ b/compiler/rustc_target/src/spec/thumbv6m_none_eabi.rs @@ -0,0 +1,23 @@ +// Targets the Cortex-M0, Cortex-M0+ and Cortex-M1 processors (ARMv6-M architecture) + +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "thumbv6m-none-eabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + options: TargetOptions { + abi: "eabi".into(), + // The ARMv6-M architecture doesn't support unaligned loads/stores so we disable them + // with +strict-align. + features: "+strict-align".into(), + // There are no atomic CAS instructions available in the instruction set of the ARMv6-M + // architecture + atomic_cas: false, + ..super::thumb_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/thumbv7a_pc_windows_msvc.rs b/compiler/rustc_target/src/spec/thumbv7a_pc_windows_msvc.rs new file mode 100644 index 000000000..4d09d3a4d --- /dev/null +++ b/compiler/rustc_target/src/spec/thumbv7a_pc_windows_msvc.rs @@ -0,0 +1,28 @@ +use crate::spec::{LinkerFlavor, PanicStrategy, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::windows_msvc_base::opts(); + // Prevent error LNK2013: BRANCH24(T) fixup overflow + // The LBR optimization tries to eliminate branch islands, + // but if the displacement is larger than can fit + // in the instruction, this error will occur. The linker + // should be smart enough to insert branch islands only + // where necessary, but this is not the observed behavior. + // Disabling the LBR optimization works around the issue. + base.add_pre_link_args(LinkerFlavor::Msvc, &["/OPT:NOLBR"]); + + Target { + llvm_target: "thumbv7a-pc-windows-msvc".into(), + pointer_width: 32, + data_layout: "e-m:w-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + features: "+vfp3,+neon".into(), + max_atomic_width: Some(64), + // FIXME(jordanrh): use PanicStrategy::Unwind when SEH is + // implemented for windows/arm in LLVM + panic_strategy: PanicStrategy::Abort, + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/thumbv7a_uwp_windows_msvc.rs b/compiler/rustc_target/src/spec/thumbv7a_uwp_windows_msvc.rs new file mode 100644 index 000000000..65c2f5a70 --- /dev/null +++ b/compiler/rustc_target/src/spec/thumbv7a_uwp_windows_msvc.rs @@ -0,0 +1,18 @@ +use crate::spec::{PanicStrategy, Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "thumbv7a-pc-windows-msvc".into(), + pointer_width: 32, + data_layout: "e-m:w-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + features: "+vfp3,+neon".into(), + max_atomic_width: Some(64), + // FIXME(jordanrh): use PanicStrategy::Unwind when SEH is + // implemented for windows/arm in LLVM + panic_strategy: PanicStrategy::Abort, + ..super::windows_uwp_msvc_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/thumbv7em_none_eabi.rs b/compiler/rustc_target/src/spec/thumbv7em_none_eabi.rs new file mode 100644 index 000000000..000e5f2d3 --- /dev/null +++ b/compiler/rustc_target/src/spec/thumbv7em_none_eabi.rs @@ -0,0 +1,27 @@ +// Targets the Cortex-M4 and Cortex-M7 processors (ARMv7E-M) +// +// This target assumes that the device doesn't have a FPU (Floating Point Unit) and lowers all the +// floating point operations to software routines (intrinsics). +// +// As such, this target uses the "soft" calling convention (ABI) where floating point values are +// passed to/from subroutines via general purpose registers (R0, R1, etc.). +// +// To opt-in to hardware accelerated floating point operations, you can use, for example, +// `-C target-feature=+vfp4` or `-C target-cpu=cortex-m4`. + +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "thumbv7em-none-eabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + options: TargetOptions { + abi: "eabi".into(), + max_atomic_width: Some(32), + ..super::thumb_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/thumbv7em_none_eabihf.rs b/compiler/rustc_target/src/spec/thumbv7em_none_eabihf.rs new file mode 100644 index 000000000..39a72564e --- /dev/null +++ b/compiler/rustc_target/src/spec/thumbv7em_none_eabihf.rs @@ -0,0 +1,36 @@ +// Targets the Cortex-M4F and Cortex-M7F processors (ARMv7E-M) +// +// This target assumes that the device does have a FPU (Floating Point Unit) and lowers all (single +// precision) floating point operations to hardware instructions. +// +// Additionally, this target uses the "hard" floating convention (ABI) where floating point values +// are passed to/from subroutines via FPU registers (S0, S1, D0, D1, etc.). +// +// To opt into double precision hardware support, use the `-C target-feature=+fp64` flag. + +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "thumbv7em-none-eabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + options: TargetOptions { + abi: "eabihf".into(), + // `+vfp4` is the lowest common denominator between the Cortex-M4 (vfp4-16) and the + // Cortex-M7 (vfp5) + // `-d32` both the Cortex-M4 and the Cortex-M7 only have 16 double-precision registers + // available + // `-fp64` The Cortex-M4 only supports single precision floating point operations + // whereas in the Cortex-M7 double precision is optional + // + // Reference: + // ARMv7-M Architecture Reference Manual - A2.5 The optional floating-point extension + features: "+vfp4,-d32,-fp64".into(), + max_atomic_width: Some(32), + ..super::thumb_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/thumbv7m_none_eabi.rs b/compiler/rustc_target/src/spec/thumbv7m_none_eabi.rs new file mode 100644 index 000000000..ab25cde66 --- /dev/null +++ b/compiler/rustc_target/src/spec/thumbv7m_none_eabi.rs @@ -0,0 +1,18 @@ +// Targets the Cortex-M3 processor (ARMv7-M) + +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "thumbv7m-none-eabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + options: TargetOptions { + abi: "eabi".into(), + max_atomic_width: Some(32), + ..super::thumb_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/thumbv7neon_linux_androideabi.rs b/compiler/rustc_target/src/spec/thumbv7neon_linux_androideabi.rs new file mode 100644 index 000000000..4cad9e183 --- /dev/null +++ b/compiler/rustc_target/src/spec/thumbv7neon_linux_androideabi.rs @@ -0,0 +1,26 @@ +use crate::spec::{LinkerFlavor, Target, TargetOptions}; + +// This target if is for the Android v7a ABI in thumb mode with +// NEON unconditionally enabled and, therefore, with 32 FPU registers +// enabled as well. See section A2.6.2 on page A2-56 in +// https://static.docs.arm.com/ddi0406/cd/DDI0406C_d_armv7ar_arm.pdf + +// See https://developer.android.com/ndk/guides/abis.html#v7a +// for target ABI requirements. + +pub fn target() -> Target { + let mut base = super::android_base::opts(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-march=armv7-a"]); + Target { + llvm_target: "armv7-none-linux-android".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabi".into(), + features: "+v7,+thumb-mode,+thumb2,+vfp3,+neon".into(), + max_atomic_width: Some(64), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/thumbv7neon_unknown_linux_gnueabihf.rs b/compiler/rustc_target/src/spec/thumbv7neon_unknown_linux_gnueabihf.rs new file mode 100644 index 000000000..28c81340a --- /dev/null +++ b/compiler/rustc_target/src/spec/thumbv7neon_unknown_linux_gnueabihf.rs @@ -0,0 +1,23 @@ +use crate::spec::{Target, TargetOptions}; + +// This target is for glibc Linux on ARMv7 with thumb mode enabled +// (for consistency with Android and Debian-based distributions) +// and with NEON unconditionally enabled and, therefore, with 32 FPU +// registers enabled as well. See section A2.6.2 on page A2-56 in +// https://static.docs.arm.com/ddi0406/cd/DDI0406C_d_armv7ar_arm.pdf + +pub fn target() -> Target { + Target { + llvm_target: "armv7-unknown-linux-gnueabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + options: TargetOptions { + abi: "eabihf".into(), + // Info about features at https://wiki.debian.org/ArmHardFloatPort + features: "+v7,+thumb-mode,+thumb2,+vfp3,+neon".into(), + max_atomic_width: Some(64), + ..super::linux_gnu_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/thumbv7neon_unknown_linux_musleabihf.rs b/compiler/rustc_target/src/spec/thumbv7neon_unknown_linux_musleabihf.rs new file mode 100644 index 000000000..2c375ab22 --- /dev/null +++ b/compiler/rustc_target/src/spec/thumbv7neon_unknown_linux_musleabihf.rs @@ -0,0 +1,29 @@ +use crate::spec::{Target, TargetOptions}; + +// This target is for musl Linux on ARMv7 with thumb mode enabled +// (for consistency with Android and Debian-based distributions) +// and with NEON unconditionally enabled and, therefore, with 32 FPU +// registers enabled as well. See section A2.6.2 on page A2-56 in +// https://static.docs.arm.com/ddi0406/cd/DDI0406C_d_armv7ar_arm.pdf + +pub fn target() -> Target { + Target { + // It's important we use "gnueabihf" and not "musleabihf" here. LLVM + // uses it to determine the calling convention and float ABI, and LLVM + // doesn't support the "musleabihf" value. + llvm_target: "armv7-unknown-linux-gnueabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + // Most of these settings are copied from the thumbv7neon_unknown_linux_gnueabihf + // target. + options: TargetOptions { + abi: "eabihf".into(), + features: "+v7,+thumb-mode,+thumb2,+vfp3,+neon".into(), + max_atomic_width: Some(64), + mcount: "\u{1}mcount".into(), + ..super::linux_musl_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/thumbv8m_base_none_eabi.rs b/compiler/rustc_target/src/spec/thumbv8m_base_none_eabi.rs new file mode 100644 index 000000000..756b1834c --- /dev/null +++ b/compiler/rustc_target/src/spec/thumbv8m_base_none_eabi.rs @@ -0,0 +1,21 @@ +// Targets the Cortex-M23 processor (Baseline ARMv8-M) + +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "thumbv8m.base-none-eabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + options: TargetOptions { + abi: "eabi".into(), + // ARMv8-M baseline doesn't support unaligned loads/stores so we disable them + // with +strict-align. + features: "+strict-align".into(), + max_atomic_width: Some(32), + ..super::thumb_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/thumbv8m_main_none_eabi.rs b/compiler/rustc_target/src/spec/thumbv8m_main_none_eabi.rs new file mode 100644 index 000000000..4b6268546 --- /dev/null +++ b/compiler/rustc_target/src/spec/thumbv8m_main_none_eabi.rs @@ -0,0 +1,19 @@ +// Targets the Cortex-M33 processor (Armv8-M Mainline architecture profile), +// without the Floating Point extension. + +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "thumbv8m.main-none-eabi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + options: TargetOptions { + abi: "eabi".into(), + max_atomic_width: Some(32), + ..super::thumb_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/thumbv8m_main_none_eabihf.rs b/compiler/rustc_target/src/spec/thumbv8m_main_none_eabihf.rs new file mode 100644 index 000000000..86c25f9e4 --- /dev/null +++ b/compiler/rustc_target/src/spec/thumbv8m_main_none_eabihf.rs @@ -0,0 +1,25 @@ +// Targets the Cortex-M33 processor (Armv8-M Mainline architecture profile), +// with the Floating Point extension. + +use crate::spec::{Target, TargetOptions}; + +pub fn target() -> Target { + Target { + llvm_target: "thumbv8m.main-none-eabihf".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + options: TargetOptions { + abi: "eabihf".into(), + // If the Floating Point extension is implemented in the Cortex-M33 + // processor, the Cortex-M33 Technical Reference Manual states that + // the FPU uses the FPv5 architecture, single-precision instructions + // and 16 D registers. + // These parameters map to the following LLVM features. + features: "+fp-armv8,-fp64,-d32".into(), + max_atomic_width: Some(32), + ..super::thumb_base::opts() + }, + } +} diff --git a/compiler/rustc_target/src/spec/uefi_msvc_base.rs b/compiler/rustc_target/src/spec/uefi_msvc_base.rs new file mode 100644 index 000000000..aee8eb2e3 --- /dev/null +++ b/compiler/rustc_target/src/spec/uefi_msvc_base.rs @@ -0,0 +1,51 @@ +// This defines a base target-configuration for native UEFI systems. The UEFI specification has +// quite detailed sections on the ABI of all the supported target architectures. In almost all +// cases it simply follows what Microsoft Windows does. Hence, whenever in doubt, see the MSDN +// documentation. +// UEFI uses COFF/PE32+ format for binaries. All binaries must be statically linked. No dynamic +// linker is supported. As native to COFF, binaries are position-dependent, but will be relocated +// by the loader if the pre-chosen memory location is already in use. +// UEFI forbids running code on anything but the boot-CPU. No interrupts are allowed other than +// the timer-interrupt. Device-drivers are required to use polling-based models. Furthermore, all +// code runs in the same environment, no process separation is supported. + +use crate::spec::{LinkerFlavor, LldFlavor, PanicStrategy, StackProbeType, TargetOptions}; + +pub fn opts() -> TargetOptions { + let mut base = super::msvc_base::opts(); + + base.add_pre_link_args( + LinkerFlavor::Msvc, + &[ + // Non-standard subsystems have no default entry-point in PE+ files. We have to define + // one. "efi_main" seems to be a common choice amongst other implementations and the + // spec. + "/entry:efi_main", + // COFF images have a "Subsystem" field in their header, which defines what kind of + // program it is. UEFI has 3 fields reserved, which are EFI_APPLICATION, + // EFI_BOOT_SERVICE_DRIVER, and EFI_RUNTIME_DRIVER. We default to EFI_APPLICATION, + // which is very likely the most common option. Individual projects can override this + // with custom linker flags. + // The subsystem-type only has minor effects on the application. It defines the memory + // regions the application is loaded into (runtime-drivers need to be put into + // reserved areas), as well as whether a return from the entry-point is treated as + // exit (default for applications). + "/subsystem:efi_application", + ], + ); + + TargetOptions { + os: "uefi".into(), + linker_flavor: LinkerFlavor::Lld(LldFlavor::Link), + disable_redzone: true, + exe_suffix: ".efi".into(), + allows_weak_linkage: false, + panic_strategy: PanicStrategy::Abort, + // LLVM does not emit inline assembly because the LLVM target does not get considered as… + // "Windows". + stack_probes: StackProbeType::Call, + singlethread: true, + linker: Some("rust-lld".into()), + ..base + } +} diff --git a/compiler/rustc_target/src/spec/vxworks_base.rs b/compiler/rustc_target/src/spec/vxworks_base.rs new file mode 100644 index 000000000..aa4784b63 --- /dev/null +++ b/compiler/rustc_target/src/spec/vxworks_base.rs @@ -0,0 +1,21 @@ +use crate::spec::{cvs, TargetOptions}; + +pub fn opts() -> TargetOptions { + TargetOptions { + os: "vxworks".into(), + env: "gnu".into(), + vendor: "wrs".into(), + linker: Some("wr-c++".into()), + exe_suffix: ".vxe".into(), + dynamic_linking: true, + families: cvs!["unix"], + has_rpath: true, + has_thread_local: true, + crt_static_default: true, + crt_static_respected: true, + crt_static_allows_dylibs: true, + // VxWorks needs to implement this to support profiling + mcount: "_mcount".into(), + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/wasm32_unknown_emscripten.rs b/compiler/rustc_target/src/spec/wasm32_unknown_emscripten.rs new file mode 100644 index 000000000..c7e7d2210 --- /dev/null +++ b/compiler/rustc_target/src/spec/wasm32_unknown_emscripten.rs @@ -0,0 +1,34 @@ +use super::{cvs, wasm_base}; +use super::{LinkArgs, LinkerFlavor, PanicStrategy, RelocModel, Target, TargetOptions}; + +pub fn target() -> Target { + // Reset flags for non-Em flavors back to empty to satisfy sanity checking tests. + let pre_link_args = LinkArgs::new(); + let post_link_args = TargetOptions::link_args( + LinkerFlavor::Em, + &["-sABORTING_MALLOC=0", "-Wl,--fatal-warnings"], + ); + + let opts = TargetOptions { + os: "emscripten".into(), + linker_flavor: LinkerFlavor::Em, + // emcc emits two files - a .js file to instantiate the wasm and supply platform + // functionality, and a .wasm file. + exe_suffix: ".js".into(), + linker: None, + pre_link_args, + post_link_args, + relocation_model: RelocModel::Pic, + panic_strategy: PanicStrategy::Unwind, + no_default_libraries: false, + families: cvs!["unix", "wasm"], + ..wasm_base::options() + }; + Target { + llvm_target: "wasm32-unknown-emscripten".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-f128:64-n32:64-S128-ni:1:10:20".into(), + arch: "wasm32".into(), + options: opts, + } +} diff --git a/compiler/rustc_target/src/spec/wasm32_unknown_unknown.rs b/compiler/rustc_target/src/spec/wasm32_unknown_unknown.rs new file mode 100644 index 000000000..4e2927dd9 --- /dev/null +++ b/compiler/rustc_target/src/spec/wasm32_unknown_unknown.rs @@ -0,0 +1,64 @@ +//! A "bare wasm" target representing a WebAssembly output that makes zero +//! assumptions about its environment. +//! +//! The `wasm32-unknown-unknown` target is intended to encapsulate use cases +//! that do not rely on any imported functionality. The binaries generated are +//! entirely self-contained by default when using the standard library. Although +//! the standard library is available, most of it returns an error immediately +//! (e.g. trying to create a TCP stream or something like that). +//! +//! This target is more or less managed by the Rust and WebAssembly Working +//! Group nowadays at <https://github.com/rustwasm>. + +use super::wasm_base; +use super::{LinkerFlavor, LldFlavor, Target}; +use crate::spec::abi::Abi; + +pub fn target() -> Target { + let mut options = wasm_base::options(); + options.os = "unknown".into(); + options.linker_flavor = LinkerFlavor::Lld(LldFlavor::Wasm); + + // This is a default for backwards-compatibility with the original + // definition of this target oh-so-long-ago. Once the "wasm" ABI is + // stable and the wasm-bindgen project has switched to using it then there's + // no need for this and it can be removed. + // + // Currently this is the reason that this target's ABI is mismatched with + // clang's ABI. This means that, in the limit, you can't merge C and Rust + // code on this target due to this ABI mismatch. + options.default_adjusted_cabi = Some(Abi::Wasm); + + options.add_pre_link_args( + LinkerFlavor::Lld(LldFlavor::Wasm), + &[ + // For now this target just never has an entry symbol no matter the output + // type, so unconditionally pass this. + "--no-entry", + // Rust really needs a way for users to specify exports and imports in + // the source code. --export-dynamic isn't the right tool for this job, + // however it does have the side effect of automatically exporting a lot + // of symbols, which approximates what people want when compiling for + // wasm32-unknown-unknown expect, so use it for now. + "--export-dynamic", + ], + ); + options.add_pre_link_args( + LinkerFlavor::Gcc, + &[ + // Make sure clang uses LLD as its linker and is configured appropriately + // otherwise + "--target=wasm32-unknown-unknown", + "-Wl,--no-entry", + "-Wl,--export-dynamic", + ], + ); + + Target { + llvm_target: "wasm32-unknown-unknown".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20".into(), + arch: "wasm32".into(), + options, + } +} diff --git a/compiler/rustc_target/src/spec/wasm32_wasi.rs b/compiler/rustc_target/src/spec/wasm32_wasi.rs new file mode 100644 index 000000000..280457d68 --- /dev/null +++ b/compiler/rustc_target/src/spec/wasm32_wasi.rs @@ -0,0 +1,112 @@ +//! The `wasm32-wasi` target is a new and still (as of April 2019) an +//! experimental target. The definition in this file is likely to be tweaked +//! over time and shouldn't be relied on too much. +//! +//! The `wasi` target is a proposal to define a standardized set of syscalls +//! that WebAssembly files can interoperate with. This set of syscalls is +//! intended to empower WebAssembly binaries with native capabilities such as +//! filesystem access, network access, etc. +//! +//! You can see more about the proposal at <https://wasi.dev>. +//! +//! The Rust target definition here is interesting in a few ways. We want to +//! serve two use cases here with this target: +//! +//! * First, we want Rust usage of the target to be as hassle-free as possible, +//! ideally avoiding the need to configure and install a local wasm32-wasi +//! toolchain. +//! +//! * Second, one of the primary use cases of LLVM's new wasm backend and the +//! wasm support in LLD is that any compiled language can interoperate with +//! any other. To that the `wasm32-wasi` target is the first with a viable C +//! standard library and sysroot common definition, so we want Rust and C/C++ +//! code to interoperate when compiled to `wasm32-unknown-unknown`. +//! +//! You'll note, however, that the two goals above are somewhat at odds with one +//! another. To attempt to solve both use cases in one go we define a target +//! that (ab)uses the `crt-static` target feature to indicate which one you're +//! in. +//! +//! ## No interop with C required +//! +//! By default the `crt-static` target feature is enabled, and when enabled +//! this means that the bundled version of `libc.a` found in `liblibc.rlib` +//! is used. This isn't intended really for interoperation with a C because it +//! may be the case that Rust's bundled C library is incompatible with a +//! foreign-compiled C library. In this use case, though, we use `rust-lld` and +//! some copied crt startup object files to ensure that you can download the +//! wasi target for Rust and you're off to the races, no further configuration +//! necessary. +//! +//! All in all, by default, no external dependencies are required. You can +//! compile `wasm32-wasi` binaries straight out of the box. You can't, however, +//! reliably interoperate with C code in this mode (yet). +//! +//! ## Interop with C required +//! +//! For the second goal we repurpose the `target-feature` flag, meaning that +//! you'll need to do a few things to have C/Rust code interoperate. +//! +//! 1. All Rust code needs to be compiled with `-C target-feature=-crt-static`, +//! indicating that the bundled C standard library in the Rust sysroot will +//! not be used. +//! +//! 2. If you're using rustc to build a linked artifact then you'll need to +//! specify `-C linker` to a `clang` binary that supports +//! `wasm32-wasi` and is configured with the `wasm32-wasi` sysroot. This +//! will cause Rust code to be linked against the libc.a that the specified +//! `clang` provides. +//! +//! 3. If you're building a staticlib and integrating Rust code elsewhere, then +//! compiling with `-C target-feature=-crt-static` is all you need to do. +//! +//! You can configure the linker via Cargo using the +//! `CARGO_TARGET_WASM32_WASI_LINKER` env var. Be sure to also set +//! `CC_wasm32-wasi` if any crates in the dependency graph are using the `cc` +//! crate. +//! +//! ## Remember, this is all in flux +//! +//! The wasi target is **very** new in its specification. It's likely going to +//! be a long effort to get it standardized and stable. We'll be following it as +//! best we can with this target. Don't start relying on too much here unless +//! you know what you're getting in to! + +use super::wasm_base; +use super::{crt_objects, LinkerFlavor, LldFlavor, Target}; + +pub fn target() -> Target { + let mut options = wasm_base::options(); + + options.os = "wasi".into(); + options.linker_flavor = LinkerFlavor::Lld(LldFlavor::Wasm); + options.add_pre_link_args(LinkerFlavor::Gcc, &["--target=wasm32-wasi"]); + + options.pre_link_objects_fallback = crt_objects::pre_wasi_fallback(); + options.post_link_objects_fallback = crt_objects::post_wasi_fallback(); + + // Right now this is a bit of a workaround but we're currently saying that + // the target by default has a static crt which we're taking as a signal + // for "use the bundled crt". If that's turned off then the system's crt + // will be used, but this means that default usage of this target doesn't + // need an external compiler but it's still interoperable with an external + // compiler if configured correctly. + options.crt_static_default = true; + options.crt_static_respected = true; + + // Allow `+crt-static` to create a "cdylib" output which is just a wasm file + // without a main function. + options.crt_static_allows_dylibs = true; + + // WASI's `sys::args::init` function ignores its arguments; instead, + // `args::args()` makes the WASI API calls itself. + options.main_needs_argc_argv = false; + + Target { + llvm_target: "wasm32-wasi".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20".into(), + arch: "wasm32".into(), + options, + } +} diff --git a/compiler/rustc_target/src/spec/wasm64_unknown_unknown.rs b/compiler/rustc_target/src/spec/wasm64_unknown_unknown.rs new file mode 100644 index 000000000..5211f7707 --- /dev/null +++ b/compiler/rustc_target/src/spec/wasm64_unknown_unknown.rs @@ -0,0 +1,49 @@ +//! A "bare wasm" target representing a WebAssembly output that makes zero +//! assumptions about its environment. +//! +//! The `wasm64-unknown-unknown` target is intended to encapsulate use cases +//! that do not rely on any imported functionality. The binaries generated are +//! entirely self-contained by default when using the standard library. Although +//! the standard library is available, most of it returns an error immediately +//! (e.g. trying to create a TCP stream or something like that). + +use super::wasm_base; +use super::{LinkerFlavor, LldFlavor, Target}; + +pub fn target() -> Target { + let mut options = wasm_base::options(); + options.os = "unknown".into(); + options.linker_flavor = LinkerFlavor::Lld(LldFlavor::Wasm); + + options.add_pre_link_args( + LinkerFlavor::Lld(LldFlavor::Wasm), + &[ + // For now this target just never has an entry symbol no matter the output + // type, so unconditionally pass this. + "--no-entry", + "-mwasm64", + ], + ); + options.add_pre_link_args( + LinkerFlavor::Gcc, + &[ + // Make sure clang uses LLD as its linker and is configured appropriately + // otherwise + "--target=wasm64-unknown-unknown", + "-Wl,--no-entry", + ], + ); + + // Any engine that implements wasm64 will surely implement the rest of these + // features since they were all merged into the official spec by the time + // wasm64 was designed. + options.features = "+bulk-memory,+mutable-globals,+sign-ext,+nontrapping-fptoint".into(); + + Target { + llvm_target: "wasm64-unknown-unknown".into(), + pointer_width: 64, + data_layout: "e-m:e-p:64:64-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20".into(), + arch: "wasm64".into(), + options, + } +} diff --git a/compiler/rustc_target/src/spec/wasm_base.rs b/compiler/rustc_target/src/spec/wasm_base.rs new file mode 100644 index 000000000..9216d3e7b --- /dev/null +++ b/compiler/rustc_target/src/spec/wasm_base.rs @@ -0,0 +1,129 @@ +use super::crt_objects::CrtObjectsFallback; +use super::{cvs, LinkerFlavor, LldFlavor, PanicStrategy, RelocModel, TargetOptions, TlsModel}; + +pub fn options() -> TargetOptions { + macro_rules! args { + ($prefix:literal) => { + &[ + // By default LLD only gives us one page of stack (64k) which is a + // little small. Default to a larger stack closer to other PC platforms + // (1MB) and users can always inject their own link-args to override this. + concat!($prefix, "-z"), + concat!($prefix, "stack-size=1048576"), + // By default LLD's memory layout is: + // + // 1. First, a blank page + // 2. Next, all static data + // 3. Finally, the main stack (which grows down) + // + // This has the unfortunate consequence that on stack overflows you + // corrupt static data and can cause some exceedingly weird bugs. To + // help detect this a little sooner we instead request that the stack is + // placed before static data. + // + // This means that we'll generate slightly larger binaries as references + // to static data will take more bytes in the ULEB128 encoding, but + // stack overflow will be guaranteed to trap as it underflows instead of + // corrupting static data. + concat!($prefix, "--stack-first"), + // FIXME we probably shouldn't pass this but instead pass an explicit list + // of symbols we'll allow to be undefined. We don't currently have a + // mechanism of knowing, however, which symbols are intended to be imported + // from the environment and which are intended to be imported from other + // objects linked elsewhere. This is a coarse approximation but is sure to + // hide some bugs and frustrate someone at some point, so we should ideally + // work towards a world where we can explicitly list symbols that are + // supposed to be imported and have all other symbols generate errors if + // they remain undefined. + concat!($prefix, "--allow-undefined"), + // Rust code should never have warnings, and warnings are often + // indicative of bugs, let's prevent them. + concat!($prefix, "--fatal-warnings"), + // LLD only implements C++-like demangling, which doesn't match our own + // mangling scheme. Tell LLD to not demangle anything and leave it up to + // us to demangle these symbols later. Currently rustc does not perform + // further demangling, but tools like twiggy and wasm-bindgen are intended + // to do so. + concat!($prefix, "--no-demangle"), + ] + }; + } + + let mut pre_link_args = TargetOptions::link_args(LinkerFlavor::Lld(LldFlavor::Wasm), args!("")); + super::add_link_args(&mut pre_link_args, LinkerFlavor::Gcc, args!("-Wl,")); + + TargetOptions { + is_like_wasm: true, + families: cvs!["wasm"], + + // we allow dynamic linking, but only cdylibs. Basically we allow a + // final library artifact that exports some symbols (a wasm module) but + // we don't allow intermediate `dylib` crate types + dynamic_linking: true, + only_cdylib: true, + + // relatively self-explanatory! + exe_suffix: ".wasm".into(), + dll_prefix: "".into(), + dll_suffix: ".wasm".into(), + eh_frame_header: false, + + max_atomic_width: Some(64), + + // Unwinding doesn't work right now, so the whole target unconditionally + // defaults to panic=abort. Note that this is guaranteed to change in + // the future once unwinding is implemented. Don't rely on this as we're + // basically guaranteed to change it once WebAssembly supports + // exceptions. + panic_strategy: PanicStrategy::Abort, + + // Wasm doesn't have atomics yet, so tell LLVM that we're in a single + // threaded model which will legalize atomics to normal operations. + singlethread: true, + + // no dynamic linking, no need for default visibility! + default_hidden_visibility: true, + + // Symbol visibility takes care of this for the WebAssembly. + // Additionally the only known linker, LLD, doesn't support the script + // arguments just yet + limit_rdylib_exports: false, + + // we use the LLD shipped with the Rust toolchain by default + linker: Some("rust-lld".into()), + lld_flavor: LldFlavor::Wasm, + linker_is_gnu: false, + + pre_link_args, + + crt_objects_fallback: Some(CrtObjectsFallback::Wasm), + + // This has no effect in LLVM 8 or prior, but in LLVM 9 and later when + // PIC code is implemented this has quite a drastic effect if it stays + // at the default, `pic`. In an effort to keep wasm binaries as minimal + // as possible we're defaulting to `static` for now, but the hope is + // that eventually we can ship a `pic`-compatible standard library which + // works with `static` as well (or works with some method of generating + // non-relative calls and such later on). + relocation_model: RelocModel::Static, + + // When the atomics feature is activated then these two keys matter, + // otherwise they're basically ignored by the standard library. In this + // mode, however, the `#[thread_local]` attribute works (i.e. + // `has_thread_local`) and we need to get it to work by specifying + // `local-exec` as that's all that's implemented in LLVM today for wasm. + has_thread_local: true, + tls_model: TlsModel::LocalExec, + + // gdb scripts don't work on wasm blobs + emit_debug_gdb_scripts: false, + + // There's more discussion of this at + // https://bugs.llvm.org/show_bug.cgi?id=52442 but the general result is + // that this isn't useful for wasm and has tricky issues with + // representation, so this is disabled. + generate_arange_section: false, + + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/windows_gnu_base.rs b/compiler/rustc_target/src/spec/windows_gnu_base.rs new file mode 100644 index 000000000..90e0af3e3 --- /dev/null +++ b/compiler/rustc_target/src/spec/windows_gnu_base.rs @@ -0,0 +1,91 @@ +use crate::spec::crt_objects::{self, CrtObjectsFallback}; +use crate::spec::{cvs, LinkerFlavor, TargetOptions}; + +pub fn opts() -> TargetOptions { + let mut pre_link_args = TargetOptions::link_args( + LinkerFlavor::Ld, + &[ + // Enable ASLR + "--dynamicbase", + // ASLR will rebase it anyway so leaving that option enabled only leads to confusion + "--disable-auto-image-base", + ], + ); + super::add_link_args( + &mut pre_link_args, + LinkerFlavor::Gcc, + &[ + // Tell GCC to avoid linker plugins, because we are not bundling + // them with Windows installer, and Rust does its own LTO anyways. + "-fno-use-linker-plugin", + "-Wl,--dynamicbase", + "-Wl,--disable-auto-image-base", + ], + ); + + // Order of `late_link_args*` was found through trial and error to work with various + // mingw-w64 versions (not tested on the CI). It's expected to change from time to time. + let mingw_libs = &[ + "-lmsvcrt", + "-lmingwex", + "-lmingw32", + "-lgcc", // alas, mingw* libraries above depend on libgcc + // mingw's msvcrt is a weird hybrid import library and static library. + // And it seems that the linker fails to use import symbols from msvcrt + // that are required from functions in msvcrt in certain cases. For example + // `_fmode` that is used by an implementation of `__p__fmode` in x86_64. + // The library is purposely listed twice to fix that. + // + // See https://github.com/rust-lang/rust/pull/47483 for some more details. + "-lmsvcrt", + "-luser32", + "-lkernel32", + ]; + let mut late_link_args = TargetOptions::link_args(LinkerFlavor::Ld, mingw_libs); + super::add_link_args(&mut late_link_args, LinkerFlavor::Gcc, mingw_libs); + // If any of our crates are dynamically linked then we need to use + // the shared libgcc_s-dw2-1.dll. This is required to support + // unwinding across DLL boundaries. + let dynamic_unwind_libs = &["-lgcc_s"]; + let mut late_link_args_dynamic = + TargetOptions::link_args(LinkerFlavor::Ld, dynamic_unwind_libs); + super::add_link_args(&mut late_link_args_dynamic, LinkerFlavor::Gcc, dynamic_unwind_libs); + // If all of our crates are statically linked then we can get away + // with statically linking the libgcc unwinding code. This allows + // binaries to be redistributed without the libgcc_s-dw2-1.dll + // dependency, but unfortunately break unwinding across DLL + // boundaries when unwinding across FFI boundaries. + let static_unwind_libs = &["-lgcc_eh", "-l:libpthread.a"]; + let mut late_link_args_static = TargetOptions::link_args(LinkerFlavor::Ld, static_unwind_libs); + super::add_link_args(&mut late_link_args_static, LinkerFlavor::Gcc, static_unwind_libs); + + TargetOptions { + os: "windows".into(), + env: "gnu".into(), + vendor: "pc".into(), + // FIXME(#13846) this should be enabled for windows + function_sections: false, + linker: Some("gcc".into()), + dynamic_linking: true, + dll_prefix: "".into(), + dll_suffix: ".dll".into(), + exe_suffix: ".exe".into(), + families: cvs!["windows"], + is_like_windows: true, + allows_weak_linkage: false, + pre_link_args, + pre_link_objects: crt_objects::pre_mingw(), + post_link_objects: crt_objects::post_mingw(), + pre_link_objects_fallback: crt_objects::pre_mingw_fallback(), + post_link_objects_fallback: crt_objects::post_mingw_fallback(), + crt_objects_fallback: Some(CrtObjectsFallback::Mingw), + late_link_args, + late_link_args_dynamic, + late_link_args_static, + abi_return_struct_as_int: true, + emit_debug_gdb_scripts: false, + requires_uwtable: true, + eh_frame_header: false, + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/windows_gnullvm_base.rs b/compiler/rustc_target/src/spec/windows_gnullvm_base.rs new file mode 100644 index 000000000..bae007dc9 --- /dev/null +++ b/compiler/rustc_target/src/spec/windows_gnullvm_base.rs @@ -0,0 +1,40 @@ +use crate::spec::{cvs, LinkerFlavor, TargetOptions}; + +pub fn opts() -> TargetOptions { + // We cannot use `-nodefaultlibs` because compiler-rt has to be passed + // as a path since it's not added to linker search path by the default. + // There were attemts to make it behave like libgcc (so one can just use -l<name>) + // but LLVM maintainers rejected it: https://reviews.llvm.org/D51440 + let pre_link_args = + TargetOptions::link_args(LinkerFlavor::Gcc, &["-nolibc", "--unwindlib=none"]); + // Order of `late_link_args*` does not matter with LLD. + let late_link_args = TargetOptions::link_args( + LinkerFlavor::Gcc, + &["-lmingw32", "-lmingwex", "-lmsvcrt", "-lkernel32", "-luser32"], + ); + + TargetOptions { + os: "windows".into(), + env: "gnu".into(), + vendor: "pc".into(), + abi: "llvm".into(), + linker: Some("clang".into()), + dynamic_linking: true, + dll_prefix: "".into(), + dll_suffix: ".dll".into(), + exe_suffix: ".exe".into(), + families: cvs!["windows"], + is_like_windows: true, + allows_weak_linkage: false, + pre_link_args, + late_link_args, + abi_return_struct_as_int: true, + emit_debug_gdb_scripts: false, + requires_uwtable: true, + eh_frame_header: false, + no_default_libraries: false, + has_thread_local: true, + + ..Default::default() + } +} diff --git a/compiler/rustc_target/src/spec/windows_msvc_base.rs b/compiler/rustc_target/src/spec/windows_msvc_base.rs new file mode 100644 index 000000000..21062c337 --- /dev/null +++ b/compiler/rustc_target/src/spec/windows_msvc_base.rs @@ -0,0 +1,34 @@ +use crate::spec::{cvs, TargetOptions}; + +pub fn opts() -> TargetOptions { + let base = super::msvc_base::opts(); + + TargetOptions { + os: "windows".into(), + env: "msvc".into(), + vendor: "pc".into(), + dynamic_linking: true, + dll_prefix: "".into(), + dll_suffix: ".dll".into(), + exe_suffix: ".exe".into(), + staticlib_prefix: "".into(), + staticlib_suffix: ".lib".into(), + families: cvs!["windows"], + crt_static_allows_dylibs: true, + crt_static_respected: true, + requires_uwtable: true, + // Currently we don't pass the /NODEFAULTLIB flag to the linker on MSVC + // as there's been trouble in the past of linking the C++ standard + // library required by LLVM. This likely needs to happen one day, but + // in general Windows is also a more controlled environment than + // Unix, so it's not necessarily as critical that this be implemented. + // + // Note that there are also some licensing worries about statically + // linking some libraries which require a specific agreement, so it may + // not ever be possible for us to pass this flag. + no_default_libraries: false, + has_thread_local: true, + + ..base + } +} diff --git a/compiler/rustc_target/src/spec/windows_uwp_gnu_base.rs b/compiler/rustc_target/src/spec/windows_uwp_gnu_base.rs new file mode 100644 index 000000000..fa69b919c --- /dev/null +++ b/compiler/rustc_target/src/spec/windows_uwp_gnu_base.rs @@ -0,0 +1,34 @@ +use crate::spec::{LinkArgs, LinkerFlavor, TargetOptions}; + +pub fn opts() -> TargetOptions { + let base = super::windows_gnu_base::opts(); + + // FIXME: This should be updated for the exception machinery changes from #67502 + // and inherit from `windows_gnu_base`, at least partially. + let mingw_libs = &[ + "-lwinstorecompat", + "-lruntimeobject", + "-lsynchronization", + "-lvcruntime140_app", + "-lucrt", + "-lwindowsapp", + "-lmingwex", + "-lmingw32", + ]; + let mut late_link_args = TargetOptions::link_args(LinkerFlavor::Ld, mingw_libs); + super::add_link_args(&mut late_link_args, LinkerFlavor::Gcc, mingw_libs); + // Reset the flags back to empty until the FIXME above is addressed. + let late_link_args_dynamic = LinkArgs::new(); + let late_link_args_static = LinkArgs::new(); + + TargetOptions { + abi: "uwp".into(), + vendor: "uwp".into(), + limit_rdylib_exports: false, + late_link_args, + late_link_args_dynamic, + late_link_args_static, + + ..base + } +} diff --git a/compiler/rustc_target/src/spec/windows_uwp_msvc_base.rs b/compiler/rustc_target/src/spec/windows_uwp_msvc_base.rs new file mode 100644 index 000000000..f2573fc2d --- /dev/null +++ b/compiler/rustc_target/src/spec/windows_uwp_msvc_base.rs @@ -0,0 +1,11 @@ +use crate::spec::{LinkerFlavor, TargetOptions}; + +pub fn opts() -> TargetOptions { + let mut opts = super::windows_msvc_base::opts(); + + opts.abi = "uwp".into(); + opts.vendor = "uwp".into(); + opts.add_pre_link_args(LinkerFlavor::Msvc, &["/APPCONTAINER", "mincore.lib"]); + + opts +} diff --git a/compiler/rustc_target/src/spec/x86_64_apple_darwin.rs b/compiler/rustc_target/src/spec/x86_64_apple_darwin.rs new file mode 100644 index 000000000..dbd26899c --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_apple_darwin.rs @@ -0,0 +1,30 @@ +use crate::spec::TargetOptions; +use crate::spec::{FramePointer, LinkerFlavor, SanitizerSet, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::apple_base::opts("macos"); + base.cpu = "core2".into(); + base.max_atomic_width = Some(128); // core2 support cmpxchg16b + base.frame_pointer = FramePointer::Always; + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64", "-arch", "x86_64"]); + base.link_env_remove.to_mut().extend(super::apple_base::macos_link_env_remove()); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + base.supported_sanitizers = + SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::LEAK | SanitizerSet::THREAD; + + // Clang automatically chooses a more specific target based on + // MACOSX_DEPLOYMENT_TARGET. To enable cross-language LTO to work + // correctly, we do too. + let arch = "x86_64"; + let llvm_target = super::apple_base::macos_llvm_target(&arch); + + Target { + llvm_target: llvm_target.into(), + pointer_width: 64, + data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: arch.into(), + options: TargetOptions { mcount: "\u{1}mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_apple_ios.rs b/compiler/rustc_target/src/spec/x86_64_apple_ios.rs new file mode 100644 index 000000000..5e64ed0cf --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_apple_ios.rs @@ -0,0 +1,21 @@ +use super::apple_sdk_base::{opts, Arch}; +use crate::spec::{StackProbeType, Target, TargetOptions}; + +pub fn target() -> Target { + let base = opts("ios", Arch::X86_64); + let llvm_target = super::apple_base::ios_sim_llvm_target("x86_64"); + + Target { + llvm_target: llvm_target.into(), + pointer_width: 64, + data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: TargetOptions { + max_atomic_width: Some(64), + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + stack_probes: StackProbeType::Call, + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_apple_ios_macabi.rs b/compiler/rustc_target/src/spec/x86_64_apple_ios_macabi.rs new file mode 100644 index 000000000..2122bcd37 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_apple_ios_macabi.rs @@ -0,0 +1,23 @@ +use super::apple_sdk_base::{opts, Arch}; +use crate::spec::{LinkerFlavor, StackProbeType, Target, TargetOptions}; + +pub fn target() -> Target { + let llvm_target = "x86_64-apple-ios13.0-macabi"; + + let mut base = opts("ios", Arch::X86_64_macabi); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-target", llvm_target]); + + Target { + llvm_target: llvm_target.into(), + pointer_width: 64, + data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: TargetOptions { + max_atomic_width: Some(64), + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + stack_probes: StackProbeType::Call, + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_apple_tvos.rs b/compiler/rustc_target/src/spec/x86_64_apple_tvos.rs new file mode 100644 index 000000000..a848c5a0a --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_apple_tvos.rs @@ -0,0 +1,18 @@ +use super::apple_sdk_base::{opts, Arch}; +use crate::spec::{StackProbeType, Target, TargetOptions}; + +pub fn target() -> Target { + let base = opts("tvos", Arch::X86_64); + Target { + llvm_target: "x86_64-apple-tvos".into(), + pointer_width: 64, + data_layout: "e-m:o-i64:64-f80:128-n8:16:32:64-S128".into(), + arch: "x86_64".into(), + options: TargetOptions { + max_atomic_width: Some(64), + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + stack_probes: StackProbeType::Call, + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_apple_watchos_sim.rs b/compiler/rustc_target/src/spec/x86_64_apple_watchos_sim.rs new file mode 100644 index 000000000..4dff3c2f2 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_apple_watchos_sim.rs @@ -0,0 +1,35 @@ +use super::apple_sdk_base::{opts, Arch}; +use crate::spec::{StackProbeType, Target, TargetOptions}; + +pub fn target() -> Target { + let base = opts("watchos", Arch::X86_64); + + let arch = "x86_64"; + let llvm_target = super::apple_base::watchos_sim_llvm_target(arch); + + Target { + llvm_target: llvm_target.into(), + pointer_width: 64, + data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: TargetOptions { + max_atomic_width: Some(64), + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + stack_probes: StackProbeType::Call, + forces_embed_bitcode: true, + // Taken from a clang build on Xcode 11.4.1. + // These arguments are not actually invoked - they just have + // to look right to pass App Store validation. + bitcode_llvm_cmdline: "-triple\0\ + x86_64-apple-watchos5.0-simulator\0\ + -emit-obj\0\ + -disable-llvm-passes\0\ + -target-abi\0\ + darwinpcs\0\ + -Os\0" + .into(), + ..base + }, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_fortanix_unknown_sgx.rs b/compiler/rustc_target/src/spec/x86_64_fortanix_unknown_sgx.rs new file mode 100644 index 000000000..9d597ea2e --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_fortanix_unknown_sgx.rs @@ -0,0 +1,84 @@ +use std::borrow::Cow; + +use crate::spec::cvs; + +use super::{LinkerFlavor, LldFlavor, Target, TargetOptions}; + +pub fn target() -> Target { + let pre_link_args = TargetOptions::link_args( + LinkerFlavor::Ld, + &[ + "-e", + "elf_entry", + "-Bstatic", + "--gc-sections", + "-z", + "text", + "-z", + "norelro", + "--no-undefined", + "--error-unresolved-symbols", + "--no-undefined-version", + "-Bsymbolic", + "--export-dynamic", + // The following symbols are needed by libunwind, which is linked after + // libstd. Make sure they're included in the link. + "-u", + "__rust_abort", + "-u", + "__rust_c_alloc", + "-u", + "__rust_c_dealloc", + "-u", + "__rust_print_err", + "-u", + "__rust_rwlock_rdlock", + "-u", + "__rust_rwlock_unlock", + "-u", + "__rust_rwlock_wrlock", + ], + ); + + const EXPORT_SYMBOLS: &[&str] = &[ + "sgx_entry", + "HEAP_BASE", + "HEAP_SIZE", + "RELA", + "RELACOUNT", + "ENCLAVE_SIZE", + "CFGDATA_BASE", + "DEBUG", + "EH_FRM_HDR_OFFSET", + "EH_FRM_HDR_LEN", + "EH_FRM_OFFSET", + "EH_FRM_LEN", + "TEXT_BASE", + "TEXT_SIZE", + ]; + let opts = TargetOptions { + os: "unknown".into(), + env: "sgx".into(), + vendor: "fortanix".into(), + abi: "fortanix".into(), + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + max_atomic_width: Some(64), + cpu: "x86-64".into(), + features: "+rdrnd,+rdseed,+lvi-cfi,+lvi-load-hardening".into(), + llvm_args: cvs!["--x86-experimental-lvi-inline-asm-hardening"], + position_independent_executables: true, + pre_link_args, + override_export_symbols: Some(EXPORT_SYMBOLS.iter().cloned().map(Cow::from).collect()), + relax_elf_relocations: true, + ..Default::default() + }; + Target { + llvm_target: "x86_64-elf".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: opts, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_fuchsia.rs b/compiler/rustc_target/src/spec/x86_64_fuchsia.rs new file mode 100644 index 000000000..4f88fc350 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_fuchsia.rs @@ -0,0 +1,19 @@ +use crate::spec::{SanitizerSet, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::fuchsia_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + base.supported_sanitizers = SanitizerSet::ADDRESS | SanitizerSet::CFI; + + Target { + llvm_target: "x86_64-fuchsia".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_linux_android.rs b/compiler/rustc_target/src/spec/x86_64_linux_android.rs new file mode 100644 index 000000000..6d19cf265 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_linux_android.rs @@ -0,0 +1,21 @@ +use crate::spec::{LinkerFlavor, SanitizerSet, StackProbeType, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::android_base::opts(); + base.cpu = "x86-64".into(); + // https://developer.android.com/ndk/guides/abis.html#86-64 + base.features = "+mmx,+sse,+sse2,+sse3,+ssse3,+sse4.1,+sse4.2,+popcnt".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + + Target { + llvm_target: "x86_64-linux-android".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: TargetOptions { supported_sanitizers: SanitizerSet::ADDRESS, ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_pc_solaris.rs b/compiler/rustc_target/src/spec/x86_64_pc_solaris.rs new file mode 100644 index 000000000..0550b221f --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_pc_solaris.rs @@ -0,0 +1,21 @@ +use crate::spec::{LinkerFlavor, SanitizerSet, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::solaris_base::opts(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + base.cpu = "x86-64".into(); + base.vendor = "pc".into(); + base.max_atomic_width = Some(64); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + base.supported_sanitizers = SanitizerSet::ADDRESS | SanitizerSet::CFI; + + Target { + llvm_target: "x86_64-pc-solaris".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_pc_windows_gnu.rs b/compiler/rustc_target/src/spec/x86_64_pc_windows_gnu.rs new file mode 100644 index 000000000..59a8cffca --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_pc_windows_gnu.rs @@ -0,0 +1,20 @@ +use crate::spec::{LinkerFlavor, Target}; + +pub fn target() -> Target { + let mut base = super::windows_gnu_base::opts(); + base.cpu = "x86-64".into(); + // Use high-entropy 64 bit address space for ASLR + base.add_pre_link_args(LinkerFlavor::Ld, &["-m", "i386pep", "--high-entropy-va"]); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64", "-Wl,--high-entropy-va"]); + base.max_atomic_width = Some(64); + base.linker = Some("x86_64-w64-mingw32-gcc".into()); + + Target { + llvm_target: "x86_64-pc-windows-gnu".into(), + pointer_width: 64, + data_layout: "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_pc_windows_gnullvm.rs b/compiler/rustc_target/src/spec/x86_64_pc_windows_gnullvm.rs new file mode 100644 index 000000000..d3909b389 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_pc_windows_gnullvm.rs @@ -0,0 +1,18 @@ +use crate::spec::{LinkerFlavor, Target}; + +pub fn target() -> Target { + let mut base = super::windows_gnullvm_base::opts(); + base.cpu = "x86-64".into(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + base.max_atomic_width = Some(64); + base.linker = Some("x86_64-w64-mingw32-clang".into()); + + Target { + llvm_target: "x86_64-pc-windows-gnu".into(), + pointer_width: 64, + data_layout: "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_pc_windows_msvc.rs b/compiler/rustc_target/src/spec/x86_64_pc_windows_msvc.rs new file mode 100644 index 000000000..081806aa6 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_pc_windows_msvc.rs @@ -0,0 +1,16 @@ +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::windows_msvc_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "x86_64-pc-windows-msvc".into(), + pointer_width: 64, + data_layout: "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_sun_solaris.rs b/compiler/rustc_target/src/spec/x86_64_sun_solaris.rs new file mode 100644 index 000000000..cbe87589a --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_sun_solaris.rs @@ -0,0 +1,20 @@ +use crate::spec::{LinkerFlavor, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::solaris_base::opts(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + base.cpu = "x86-64".into(); + base.vendor = "sun".into(); + base.max_atomic_width = Some(64); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + + Target { + llvm_target: "x86_64-pc-solaris".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_dragonfly.rs b/compiler/rustc_target/src/spec/x86_64_unknown_dragonfly.rs new file mode 100644 index 000000000..746f64781 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_dragonfly.rs @@ -0,0 +1,19 @@ +use crate::spec::{LinkerFlavor, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::dragonfly_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + + Target { + llvm_target: "x86_64-unknown-dragonfly".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_freebsd.rs b/compiler/rustc_target/src/spec/x86_64_unknown_freebsd.rs new file mode 100644 index 000000000..b30784ed6 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_freebsd.rs @@ -0,0 +1,21 @@ +use crate::spec::{LinkerFlavor, SanitizerSet, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::freebsd_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + base.supported_sanitizers = + SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::MEMORY | SanitizerSet::THREAD; + + Target { + llvm_target: "x86_64-unknown-freebsd".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_haiku.rs b/compiler/rustc_target/src/spec/x86_64_unknown_haiku.rs new file mode 100644 index 000000000..d6d033629 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_haiku.rs @@ -0,0 +1,21 @@ +use crate::spec::{LinkerFlavor, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::haiku_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + // This option is required to build executables on Haiku x86_64 + base.position_independent_executables = true; + + Target { + llvm_target: "x86_64-unknown-haiku".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_hermit.rs b/compiler/rustc_target/src/spec/x86_64_unknown_hermit.rs new file mode 100644 index 000000000..d31530161 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_hermit.rs @@ -0,0 +1,19 @@ +use crate::spec::{StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::hermit_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + base.features = "+rdrnd,+rdseed".into(); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + + Target { + llvm_target: "x86_64-unknown-hermit".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_illumos.rs b/compiler/rustc_target/src/spec/x86_64_unknown_illumos.rs new file mode 100644 index 000000000..9f19c3a2b --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_illumos.rs @@ -0,0 +1,20 @@ +use crate::spec::{LinkerFlavor, SanitizerSet, Target}; + +pub fn target() -> Target { + let mut base = super::illumos_base::opts(); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64", "-std=c99"]); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + base.supported_sanitizers = SanitizerSet::ADDRESS | SanitizerSet::CFI; + + Target { + // LLVM does not currently have a separate illumos target, + // so we still pass Solaris to it + llvm_target: "x86_64-pc-solaris".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_l4re_uclibc.rs b/compiler/rustc_target/src/spec/x86_64_unknown_l4re_uclibc.rs new file mode 100644 index 000000000..78189a0c0 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_l4re_uclibc.rs @@ -0,0 +1,19 @@ +use crate::spec::{PanicStrategy, Target}; + +pub fn target() -> Target { + let mut base = super::l4re_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + base.crt_static_allows_dylibs = false; + base.dynamic_linking = false; + base.panic_strategy = PanicStrategy::Abort; + + Target { + llvm_target: "x86_64-unknown-l4re-uclibc".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/x86_64_unknown_linux_gnu.rs new file mode 100644 index 000000000..956be0353 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_linux_gnu.rs @@ -0,0 +1,25 @@ +use crate::spec::{LinkerFlavor, SanitizerSet, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::linux_gnu_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + base.static_position_independent_executables = true; + base.supported_sanitizers = SanitizerSet::ADDRESS + | SanitizerSet::CFI + | SanitizerSet::LEAK + | SanitizerSet::MEMORY + | SanitizerSet::THREAD; + + Target { + llvm_target: "x86_64-unknown-linux-gnu".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_linux_gnux32.rs b/compiler/rustc_target/src/spec/x86_64_unknown_linux_gnux32.rs new file mode 100644 index 000000000..140882747 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_linux_gnux32.rs @@ -0,0 +1,25 @@ +use crate::spec::{LinkerFlavor, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::linux_gnu_base::opts(); + base.cpu = "x86-64".into(); + base.abi = "x32".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-mx32"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + base.has_thread_local = false; + // BUG(GabrielMajeri): disabling the PLT on x86_64 Linux with x32 ABI + // breaks code gen. See LLVM bug 36743 + base.needs_plt = true; + + Target { + llvm_target: "x86_64-unknown-linux-gnux32".into(), + pointer_width: 32, + data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\ + i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_linux_musl.rs b/compiler/rustc_target/src/spec/x86_64_unknown_linux_musl.rs new file mode 100644 index 000000000..87e7784d1 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_linux_musl.rs @@ -0,0 +1,25 @@ +use crate::spec::{LinkerFlavor, SanitizerSet, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::linux_musl_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + base.static_position_independent_executables = true; + base.supported_sanitizers = SanitizerSet::ADDRESS + | SanitizerSet::CFI + | SanitizerSet::LEAK + | SanitizerSet::MEMORY + | SanitizerSet::THREAD; + + Target { + llvm_target: "x86_64-unknown-linux-musl".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_netbsd.rs b/compiler/rustc_target/src/spec/x86_64_unknown_netbsd.rs new file mode 100644 index 000000000..d3a67619a --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_netbsd.rs @@ -0,0 +1,24 @@ +use crate::spec::{LinkerFlavor, SanitizerSet, StackProbeType, Target, TargetOptions}; + +pub fn target() -> Target { + let mut base = super::netbsd_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + base.supported_sanitizers = SanitizerSet::ADDRESS + | SanitizerSet::CFI + | SanitizerSet::LEAK + | SanitizerSet::MEMORY + | SanitizerSet::THREAD; + + Target { + llvm_target: "x86_64-unknown-netbsd".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: TargetOptions { mcount: "__mcount".into(), ..base }, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_none.rs b/compiler/rustc_target/src/spec/x86_64_unknown_none.rs new file mode 100644 index 000000000..809fd642d --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_none.rs @@ -0,0 +1,40 @@ +// Generic x86-64 target for bare-metal code - Floating point disabled +// +// Can be used in conjunction with the `target-feature` and +// `target-cpu` compiler flags to opt-in more hardware-specific +// features. + +use super::{ + CodeModel, LinkerFlavor, LldFlavor, PanicStrategy, RelocModel, RelroLevel, StackProbeType, + Target, TargetOptions, +}; + +pub fn target() -> Target { + let opts = TargetOptions { + cpu: "x86-64".into(), + max_atomic_width: Some(64), + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + stack_probes: StackProbeType::Call, + position_independent_executables: true, + static_position_independent_executables: true, + relro_level: RelroLevel::Full, + relocation_model: RelocModel::Pic, + linker_flavor: LinkerFlavor::Lld(LldFlavor::Ld), + linker: Some("rust-lld".into()), + features: + "-mmx,-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-3dnow,-3dnowa,-avx,-avx2,+soft-float" + .into(), + disable_redzone: true, + panic_strategy: PanicStrategy::Abort, + code_model: Some(CodeModel::Kernel), + ..Default::default() + }; + Target { + llvm_target: "x86_64-unknown-none-elf".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: opts, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_none_linuxkernel.rs b/compiler/rustc_target/src/spec/x86_64_unknown_none_linuxkernel.rs new file mode 100644 index 000000000..593345a5f --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_none_linuxkernel.rs @@ -0,0 +1,28 @@ +// This defines the amd64 target for the Linux Kernel. See the linux-kernel-base module for +// generic Linux kernel options. + +use crate::spec::{CodeModel, LinkerFlavor, Target}; + +pub fn target() -> Target { + let mut base = super::linux_kernel_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + base.features = + "-mmx,-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-3dnow,-3dnowa,-avx,-avx2,+soft-float".into(); + base.code_model = Some(CodeModel::Kernel); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + + Target { + // FIXME: Some dispute, the linux-on-clang folks think this should use + // "Linux". We disagree because running *on* Linux is nothing like + // running *as" linux, and historically the "os" component as has always + // been used to mean the "on" part. + llvm_target: "x86_64-unknown-none-elf".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_openbsd.rs b/compiler/rustc_target/src/spec/x86_64_unknown_openbsd.rs new file mode 100644 index 000000000..f50c6bcee --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_openbsd.rs @@ -0,0 +1,19 @@ +use crate::spec::{LinkerFlavor, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::openbsd_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + + Target { + llvm_target: "x86_64-unknown-openbsd".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_redox.rs b/compiler/rustc_target/src/spec/x86_64_unknown_redox.rs new file mode 100644 index 000000000..668ae9054 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_redox.rs @@ -0,0 +1,19 @@ +use crate::spec::{LinkerFlavor, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::redox_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + + Target { + llvm_target: "x86_64-unknown-redox".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_uefi.rs b/compiler/rustc_target/src/spec/x86_64_unknown_uefi.rs new file mode 100644 index 000000000..a7ae17839 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_unknown_uefi.rs @@ -0,0 +1,36 @@ +// This defines the amd64 target for UEFI systems as described in the UEFI specification. See the +// uefi-base module for generic UEFI options. On x86_64 systems (mostly called "x64" in the spec) +// UEFI systems always run in long-mode, have the interrupt-controller pre-configured and force a +// single-CPU execution. +// The win64 ABI is used. It differs from the sysv64 ABI, so we must use a windows target with +// LLVM. "x86_64-unknown-windows" is used to get the minimal subset of windows-specific features. + +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::uefi_msvc_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + + // We disable MMX and SSE for now, even though UEFI allows using them. Problem is, you have to + // enable these CPU features explicitly before their first use, otherwise their instructions + // will trigger an exception. Rust does not inject any code that enables AVX/MMX/SSE + // instruction sets, so this must be done by the firmware. However, existing firmware is known + // to leave these uninitialized, thus triggering exceptions if we make use of them. Which is + // why we avoid them and instead use soft-floats. This is also what GRUB and friends did so + // far. + // + // If you initialize FP units yourself, you can override these flags with custom linker + // arguments, thus giving you access to full MMX/SSE acceleration. + base.features = "-mmx,-sse,+soft-float".into(); + + Target { + llvm_target: "x86_64-unknown-windows".into(), + pointer_width: 64, + data_layout: "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_uwp_windows_gnu.rs b/compiler/rustc_target/src/spec/x86_64_uwp_windows_gnu.rs new file mode 100644 index 000000000..76d2013cf --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_uwp_windows_gnu.rs @@ -0,0 +1,19 @@ +use crate::spec::{LinkerFlavor, Target}; + +pub fn target() -> Target { + let mut base = super::windows_uwp_gnu_base::opts(); + base.cpu = "x86-64".into(); + // Use high-entropy 64 bit address space for ASLR + base.add_pre_link_args(LinkerFlavor::Ld, &["-m", "i386pep", "--high-entropy-va"]); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64", "-Wl,--high-entropy-va"]); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "x86_64-pc-windows-gnu".into(), + pointer_width: 64, + data_layout: "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_uwp_windows_msvc.rs b/compiler/rustc_target/src/spec/x86_64_uwp_windows_msvc.rs new file mode 100644 index 000000000..b2769350b --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_uwp_windows_msvc.rs @@ -0,0 +1,16 @@ +use crate::spec::Target; + +pub fn target() -> Target { + let mut base = super::windows_uwp_msvc_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + + Target { + llvm_target: "x86_64-pc-windows-msvc".into(), + pointer_width: 64, + data_layout: "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} diff --git a/compiler/rustc_target/src/spec/x86_64_wrs_vxworks.rs b/compiler/rustc_target/src/spec/x86_64_wrs_vxworks.rs new file mode 100644 index 000000000..129897495 --- /dev/null +++ b/compiler/rustc_target/src/spec/x86_64_wrs_vxworks.rs @@ -0,0 +1,20 @@ +use crate::spec::{LinkerFlavor, StackProbeType, Target}; + +pub fn target() -> Target { + let mut base = super::vxworks_base::opts(); + base.cpu = "x86-64".into(); + base.max_atomic_width = Some(64); + base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]); + // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved + base.stack_probes = StackProbeType::Call; + base.disable_redzone = true; + + Target { + llvm_target: "x86_64-unknown-linux-gnu".into(), + pointer_width: 64, + data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" + .into(), + arch: "x86_64".into(), + options: base, + } +} |