Merging upstream version 1.70.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

16 files changed, 157 insertions, 25 deletions

diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_linux_ohos.rs b/compiler/rustc_target/src/spec/aarch64_unknown_linux_ohos.rs
new file mode 100644
index 000000000..bf1b089f6
--- /dev/null
+++ b/compiler/rustc_target/src/spec/aarch64_unknown_linux_ohos.rs
@@ -0,0 +1,32 @@
+use crate::spec::{Target, TargetOptions};
+
+use super::SanitizerSet;
+
+pub fn target() -> Target {
+    let mut base = super::linux_musl_base::opts();
+    base.env = "ohos".into();
+    base.crt_static_default = false;
+    base.max_atomic_width = Some(128);
+
+    Target {
+        // LLVM 15 doesn't support OpenHarmony yet, use a linux target instead.
+        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 {
+            features: "+reserve-x18".into(),
+            mcount: "\u{1}_mcount".into(),
+            force_emulated_tls: true,
+            has_thread_local: false,
+            supported_sanitizers: SanitizerSet::ADDRESS
+                | SanitizerSet::CFI
+                | SanitizerSet::LEAK
+                | SanitizerSet::MEMORY
+                | SanitizerSet::MEMTAG
+                | SanitizerSet::THREAD
+                | SanitizerSet::HWADDRESS,
+            ..base
+        },
+    }
+}
diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_nto_qnx_710.rs b/compiler/rustc_target/src/spec/aarch64_unknown_nto_qnx_710.rs
index 8c1126ae6..630642dcd 100644
--- a/compiler/rustc_target/src/spec/aarch64_unknown_nto_qnx_710.rs
+++ b/compiler/rustc_target/src/spec/aarch64_unknown_nto_qnx_710.rs
@@ -23,6 +23,7 @@ pub fn target() -> Target {
                 LinkerFlavor::Gnu(Cc::Yes, Lld::No),
                 &["-Vgcc_ntoaarch64le_cxx"],
             ),
+            env: "nto71".into(),
             ..nto_qnx_base::opts()
         },
     }
diff --git a/compiler/rustc_target/src/spec/abi.rs b/compiler/rustc_target/src/spec/abi.rs
index d4f7ed31b..5582d909f 100644
--- a/compiler/rustc_target/src/spec/abi.rs
+++ b/compiler/rustc_target/src/spec/abi.rs
@@ -324,8 +324,6 @@ impl Abi {
 
 impl fmt::Display for Abi {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        match self {
-            abi => write!(f, "\"{}\"", abi.name()),
-        }
+        write!(f, "\"{}\"", self.name())
     }
 }
diff --git a/compiler/rustc_target/src/spec/armv4t_none_eabi.rs b/compiler/rustc_target/src/spec/armv4t_none_eabi.rs
index 28b109889..d0f988b27 100644
--- a/compiler/rustc_target/src/spec/armv4t_none_eabi.rs
+++ b/compiler/rustc_target/src/spec/armv4t_none_eabi.rs
@@ -4,13 +4,6 @@
 //!
 //! 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
@@ -35,8 +28,8 @@ pub fn target() -> Target {
         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::Gnu(Cc::No, Lld::No),
-            linker: Some("arm-none-eabi-ld".into()),
+            linker_flavor: LinkerFlavor::Gnu(Cc::No, Lld::Yes),
+            linker: Some("rust-lld".into()),
             asm_args: cvs!["-mthumb-interwork", "-march=armv4t", "-mlittle-endian",],
             // Force-enable 32-bit atomics, which allows the use of atomic load/store only.
             // The resulting atomics are ABI incompatible with atomics backed by libatomic.
diff --git a/compiler/rustc_target/src/spec/armv7_unknown_linux_ohos.rs b/compiler/rustc_target/src/spec/armv7_unknown_linux_ohos.rs
new file mode 100644
index 000000000..16da24533
--- /dev/null
+++ b/compiler/rustc_target/src/spec/armv7_unknown_linux_ohos.rs
@@ -0,0 +1,28 @@
+use crate::spec::{Target, TargetOptions};
+
+// This target is for OpenHarmony on ARMv7 Linux with thumb-mode, but no NEON or
+// hardfloat.
+
+pub fn target() -> Target {
+    // Most of these settings are copied from the armv7_unknown_linux_musleabi
+    // target.
+    Target {
+        // LLVM 15 doesn't support OpenHarmony yet, use a linux target instead.
+        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),
+            env: "ohos".into(),
+            crt_static_default: false,
+            mcount: "\u{1}mcount".into(),
+            force_emulated_tls: true,
+            has_thread_local: false,
+            ..super::linux_musl_base::opts()
+        },
+    }
+}
diff --git a/compiler/rustc_target/src/spec/i586_pc_nto_qnx700.rs b/compiler/rustc_target/src/spec/i586_pc_nto_qnx700.rs
new file mode 100644
index 000000000..68afa7fe4
--- /dev/null
+++ b/compiler/rustc_target/src/spec/i586_pc_nto_qnx700.rs
@@ -0,0 +1,24 @@
+use super::nto_qnx_base;
+use crate::spec::{Cc, LinkerFlavor, Lld, StackProbeType, Target, TargetOptions};
+
+pub fn target() -> Target {
+    Target {
+        llvm_target: "i586-pc-unknown".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 {
+            cpu: "pentium4".into(),
+            max_atomic_width: Some(64),
+            pre_link_args: TargetOptions::link_args(
+                LinkerFlavor::Gnu(Cc::Yes, Lld::No),
+                &["-Vgcc_ntox86_cxx"],
+            ),
+            env: "nto70".into(),
+            stack_probes: StackProbeType::X86,
+            ..nto_qnx_base::opts()
+        },
+    }
+}
diff --git a/compiler/rustc_target/src/spec/loongarch64_unknown_linux_gnu.rs b/compiler/rustc_target/src/spec/loongarch64_unknown_linux_gnu.rs
new file mode 100644
index 000000000..db8b9c70e
--- /dev/null
+++ b/compiler/rustc_target/src/spec/loongarch64_unknown_linux_gnu.rs
@@ -0,0 +1,17 @@
+use crate::spec::{Target, TargetOptions};
+
+pub fn target() -> Target {
+    Target {
+        llvm_target: "loongarch64-unknown-linux-gnu".into(),
+        pointer_width: 64,
+        data_layout: "e-m:e-p:64:64-i64:64-i128:128-n64-S128".into(),
+        arch: "loongarch64".into(),
+        options: TargetOptions {
+            cpu: "generic".into(),
+            features: "+f,+d".into(),
+            llvm_abiname: "lp64d".into(),
+            max_atomic_width: Some(64),
+            ..super::linux_gnu_base::opts()
+        },
+    }
+}
diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs
index 0d86a3032..4e5a821f0 100644
--- a/compiler/rustc_target/src/spec/mod.rs
+++ b/compiler/rustc_target/src/spec/mod.rs
@@ -40,6 +40,7 @@ use crate::json::{Json, ToJson};
 use crate::spec::abi::{lookup as lookup_abi, Abi};
 use crate::spec::crt_objects::{CrtObjects, LinkSelfContainedDefault};
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
+use rustc_fs_util::try_canonicalize;
 use rustc_serialize::{Decodable, Decoder, Encodable, Encoder};
 use rustc_span::symbol::{sym, Symbol};
 use serde_json::Value;
@@ -122,7 +123,7 @@ pub enum Lld {
 /// target properties, in accordance with the first design goal.
 ///
 /// The first component of the flavor is tightly coupled with the compilation target,
-/// while the `Cc` and `Lld` flags can vary withing the same target.
+/// while the `Cc` and `Lld` flags can vary within the same target.
 #[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)]
 pub enum LinkerFlavor {
     /// Unix-like linker with GNU extensions (both naked and compiler-wrapped forms).
@@ -1020,6 +1021,7 @@ supported_targets! {
     ("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),
+    ("loongarch64-unknown-linux-gnu", loongarch64_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),
@@ -1115,6 +1117,7 @@ supported_targets! {
     // FIXME(#106649): Remove aarch64-fuchsia in favor of aarch64-unknown-fuchsia
     ("aarch64-fuchsia", aarch64_fuchsia),
     ("aarch64-unknown-fuchsia", aarch64_unknown_fuchsia),
+    ("riscv64gc-unknown-fuchsia", riscv64gc_unknown_fuchsia),
     // FIXME(#106649): Remove x86_64-fuchsia in favor of x86_64-unknown-fuchsia
     ("x86_64-fuchsia", x86_64_fuchsia),
     ("x86_64-unknown-fuchsia", x86_64_unknown_fuchsia),
@@ -1259,6 +1262,10 @@ supported_targets! {
 
     ("aarch64-unknown-nto-qnx710", aarch64_unknown_nto_qnx_710),
     ("x86_64-pc-nto-qnx710", x86_64_pc_nto_qnx710),
+    ("i586-pc-nto-qnx700", i586_pc_nto_qnx700),
+
+    ("aarch64-unknown-linux-ohos", aarch64_unknown_linux_ohos),
+    ("armv7-unknown-linux-ohos", armv7_unknown_linux_ohos),
 }
 
 /// Cow-Vec-Str: Cow<'static, [Cow<'static, str>]>
@@ -1466,6 +1473,8 @@ pub struct TargetOptions {
     pub features: StaticCow<str>,
     /// Whether dynamic linking is available on this target. Defaults to false.
     pub dynamic_linking: bool,
+    /// Whether dynamic linking can export TLS globals. Defaults to true.
+    pub dll_tls_export: 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.
@@ -1732,6 +1741,9 @@ pub struct TargetOptions {
 
     /// Whether the target supports XRay instrumentation.
     pub supports_xray: bool,
+
+    /// Forces the use of emulated TLS (__emutls_get_address)
+    pub force_emulated_tls: bool,
 }
 
 /// Add arguments for the given flavor and also for its "twin" flavors
@@ -1857,6 +1869,7 @@ impl Default for TargetOptions {
             cpu: "generic".into(),
             features: "".into(),
             dynamic_linking: false,
+            dll_tls_export: true,
             only_cdylib: false,
             executables: true,
             relocation_model: RelocModel::Pic,
@@ -1952,6 +1965,7 @@ impl Default for TargetOptions {
             entry_name: "main".into(),
             entry_abi: Conv::C,
             supports_xray: false,
+            force_emulated_tls: false,
         }
     }
 }
@@ -2528,6 +2542,7 @@ impl Target {
         key!(cpu);
         key!(features);
         key!(dynamic_linking, bool);
+        key!(dll_tls_export, bool);
         key!(only_cdylib, bool);
         key!(executables, bool);
         key!(relocation_model, RelocModel)?;
@@ -2603,6 +2618,7 @@ impl Target {
         key!(entry_name);
         key!(entry_abi, Conv)?;
         key!(supports_xray, bool);
+        key!(force_emulated_tls, bool);
 
         if base.is_builtin {
             // This can cause unfortunate ICEs later down the line.
@@ -2781,6 +2797,7 @@ impl ToJson for Target {
         target_option_val!(cpu);
         target_option_val!(features);
         target_option_val!(dynamic_linking);
+        target_option_val!(dll_tls_export);
         target_option_val!(only_cdylib);
         target_option_val!(executables);
         target_option_val!(relocation_model);
@@ -2857,6 +2874,7 @@ impl ToJson for Target {
         target_option_val!(entry_name);
         target_option_val!(entry_abi);
         target_option_val!(supports_xray);
+        target_option_val!(force_emulated_tls);
 
         if let Some(abi) = self.default_adjusted_cabi {
             d.insert("default-adjusted-cabi".into(), Abi::name(abi).to_json());
@@ -2948,7 +2966,7 @@ impl TargetTriple {
 
     /// 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 canonicalized_path = try_canonicalize(path)?;
         let contents = std::fs::read_to_string(&canonicalized_path).map_err(|err| {
             io::Error::new(
                 io::ErrorKind::InvalidInput,
diff --git a/compiler/rustc_target/src/spec/msvc_base.rs b/compiler/rustc_target/src/spec/msvc_base.rs
index 1dad9133e..efe949a4e 100644
--- a/compiler/rustc_target/src/spec/msvc_base.rs
+++ b/compiler/rustc_target/src/spec/msvc_base.rs
@@ -8,6 +8,7 @@ pub fn opts() -> TargetOptions {
 
     TargetOptions {
         linker_flavor: LinkerFlavor::Msvc(Lld::No),
+        dll_tls_export: false,
         is_like_windows: true,
         is_like_msvc: true,
         pre_link_args,
diff --git a/compiler/rustc_target/src/spec/nto_qnx_base.rs b/compiler/rustc_target/src/spec/nto_qnx_base.rs
index 6fb581ef5..f1405e9b4 100644
--- a/compiler/rustc_target/src/spec/nto_qnx_base.rs
+++ b/compiler/rustc_target/src/spec/nto_qnx_base.rs
@@ -4,7 +4,6 @@ pub fn opts() -> TargetOptions {
     TargetOptions {
         crt_static_respected: true,
         dynamic_linking: true,
-        env: "nto71".into(),
         executables: true,
         families: cvs!["unix"],
         has_rpath: true,
diff --git a/compiler/rustc_target/src/spec/riscv64gc_unknown_fuchsia.rs b/compiler/rustc_target/src/spec/riscv64gc_unknown_fuchsia.rs
new file mode 100644
index 000000000..0585ed76f
--- /dev/null
+++ b/compiler/rustc_target/src/spec/riscv64gc_unknown_fuchsia.rs
@@ -0,0 +1,19 @@
+use crate::spec::{CodeModel, SanitizerSet, Target, TargetOptions};
+
+pub fn target() -> Target {
+    Target {
+        llvm_target: "riscv64-unknown-fuchsia".into(),
+        pointer_width: 64,
+        data_layout: "e-m:e-p:64:64-i64:64-i128:128-n32:64-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),
+            supported_sanitizers: SanitizerSet::SHADOWCALLSTACK,
+            ..super::fuchsia_base::opts()
+        },
+    }
+}
diff --git a/compiler/rustc_target/src/spec/thumbv4t_none_eabi.rs b/compiler/rustc_target/src/spec/thumbv4t_none_eabi.rs
index e3734932f..9c59bb911 100644
--- a/compiler/rustc_target/src/spec/thumbv4t_none_eabi.rs
+++ b/compiler/rustc_target/src/spec/thumbv4t_none_eabi.rs
@@ -4,19 +4,12 @@
 //!
 //! 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, Cc, FramePointer, LinkerFlavor, Lld};
+use crate::spec::{cvs, FramePointer};
 use crate::spec::{PanicStrategy, RelocModel, Target, TargetOptions};
 
 pub fn target() -> Target {
@@ -36,8 +29,6 @@ pub fn target() -> Target {
         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::Gnu(Cc::No, Lld::No),
-            linker: Some("arm-none-eabi-ld".into()),
 
             // extra args passed to the external assembler (assuming `arm-none-eabi-as`):
             // * activate t32/a32 interworking
diff --git a/compiler/rustc_target/src/spec/wasm_base.rs b/compiler/rustc_target/src/spec/wasm_base.rs
index 625d3b37c..341763aad 100644
--- a/compiler/rustc_target/src/spec/wasm_base.rs
+++ b/compiler/rustc_target/src/spec/wasm_base.rs
@@ -1,3 +1,4 @@
+use super::crt_objects::LinkSelfContainedDefault;
 use super::{cvs, Cc, LinkerFlavor, PanicStrategy, RelocModel, TargetOptions, TlsModel};
 
 pub fn options() -> TargetOptions {
@@ -94,6 +95,13 @@ pub fn options() -> TargetOptions {
 
         pre_link_args,
 
+        // FIXME: Figure out cases in which WASM needs to link with a native toolchain.
+        //
+        // rust-lang/rust#104137: cannot blindly remove this without putting in
+        // some other way to compensate for lack of `-nostartfiles` in linker
+        // invocation.
+        link_self_contained: LinkSelfContainedDefault::True,
+
         // 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
diff --git a/compiler/rustc_target/src/spec/windows_gnu_base.rs b/compiler/rustc_target/src/spec/windows_gnu_base.rs
index a32ca469b..2231983f0 100644
--- a/compiler/rustc_target/src/spec/windows_gnu_base.rs
+++ b/compiler/rustc_target/src/spec/windows_gnu_base.rs
@@ -78,6 +78,7 @@ pub fn opts() -> TargetOptions {
         function_sections: false,
         linker: Some("gcc".into()),
         dynamic_linking: true,
+        dll_tls_export: false,
         dll_prefix: "".into(),
         dll_suffix: ".dll".into(),
         exe_suffix: ".exe".into(),
diff --git a/compiler/rustc_target/src/spec/windows_gnullvm_base.rs b/compiler/rustc_target/src/spec/windows_gnullvm_base.rs
index cada28652..b1d8e2be5 100644
--- a/compiler/rustc_target/src/spec/windows_gnullvm_base.rs
+++ b/compiler/rustc_target/src/spec/windows_gnullvm_base.rs
@@ -23,6 +23,7 @@ pub fn opts() -> TargetOptions {
         abi: "llvm".into(),
         linker: Some("clang".into()),
         dynamic_linking: true,
+        dll_tls_export: false,
         dll_prefix: "".into(),
         dll_suffix: ".dll".into(),
         exe_suffix: ".exe".into(),
diff --git a/compiler/rustc_target/src/spec/x86_64_pc_nto_qnx710.rs b/compiler/rustc_target/src/spec/x86_64_pc_nto_qnx710.rs
index e9b3acee2..6fb2dfd80 100644
--- a/compiler/rustc_target/src/spec/x86_64_pc_nto_qnx710.rs
+++ b/compiler/rustc_target/src/spec/x86_64_pc_nto_qnx710.rs
@@ -15,6 +15,7 @@ pub fn target() -> Target {
                 LinkerFlavor::Gnu(Cc::Yes, Lld::No),
                 &["-Vgcc_ntox86_64_cxx"],
             ),
+            env: "nto71".into(),
             ..nto_qnx_base::opts()
         },
     }