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// 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,
}
}
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