compiler/rustc_target/src/spec/x86_64_apple_darwin.rs

   1 use crate::spec::TargetOptions;
   2 use crate::spec::{FramePointer, LinkerFlavor, SanitizerSet, StackProbeType, Target};
   3
   4 pub fn target() -> Target {
   5     let arch = "x86_64";
   6     let mut base = super::apple_base::opts("macos", arch, "");
   7     base.cpu = "core2".into();
   8     base.max_atomic_width = Some(128); // core2 support cmpxchg16b
   9     base.frame_pointer = FramePointer::Always;
  10     base.add_pre_link_args(LinkerFlavor::Gcc, &["-m64"]);
  11     base.link_env_remove.to_mut().extend(super::apple_base::macos_link_env_remove());
  12     // don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved
  13     base.stack_probes = StackProbeType::Call;
  14     base.supported_sanitizers =
  15         SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::LEAK | SanitizerSet::THREAD;
  16
  17     // Clang automatically chooses a more specific target based on
  18     // MACOSX_DEPLOYMENT_TARGET.  To enable cross-language LTO to work
  19     // correctly, we do too.
  20     let llvm_target = super::apple_base::macos_llvm_target(&arch);
  21
  22     Target {
  23         llvm_target: llvm_target.into(),
  24         pointer_width: 64,
  25         data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
  26             .into(),
  27         arch: arch.into(),
  28         options: TargetOptions { mcount: "\u{1}mcount".into(), ..base },
  29     }
  30 }