compiler/rustc_target/src/spec/x86_64_apple_darwin.rs

   1 use crate::spec::{Cc, FramePointer, LinkerFlavor, Lld, SanitizerSet};
   2 use crate::spec::{StackProbeType, Target, TargetOptions};
   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::Darwin(Cc::Yes, Lld::No), &["-m64"]);
  11     base.link_env_remove.to_mut().extend(super::apple_base::macos_link_env_remove());
  12     base.stack_probes = StackProbeType::X86;
  13     base.supported_sanitizers =
  14         SanitizerSet::ADDRESS | SanitizerSet::CFI | SanitizerSet::LEAK | SanitizerSet::THREAD;
  15
  16     // Clang automatically chooses a more specific target based on
  17     // MACOSX_DEPLOYMENT_TARGET.  To enable cross-language LTO to work
  18     // correctly, we do too.
  19     let llvm_target = super::apple_base::macos_llvm_target(&arch);
  20
  21     Target {
  22         llvm_target: llvm_target.into(),
  23         pointer_width: 64,
  24         data_layout: "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
  25             .into(),
  26         arch: arch.into(),
  27         options: TargetOptions { mcount: "\u{1}mcount".into(), ..base },
  28     }
  29 }