compiler/rustc_target/src/spec/i686_apple_darwin.rs


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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 },
    }
}