compiler/rustc_target/src/spec/i686_pc_windows_gnu.rs

use crate::spec::{FramePointer, LinkerFlavor, LldFlavor, Target};

pub fn target() -> Target {
    let mut base = super::windows_gnu_base::opts();
    base.cpu = "pentium4".into();
    base.pre_link_args.insert(LinkerFlavor::Lld(LldFlavor::Ld), vec!["-m".into(), "i386pe".into()]);
    base.max_atomic_width = Some(64);
    base.frame_pointer = FramePointer::Always; // Required for backtraces
    base.linker = Some("i686-w64-mingw32-gcc".into());

    // Mark all dynamic libraries and executables as compatible with the larger 4GiB address
    // space available to x86 Windows binaries on x86_64.
    base.pre_link_args
        .entry(LinkerFlavor::Gcc)
        .or_default()
        .push("-Wl,--large-address-aware".into());

    Target {
        llvm_target: "i686-pc-windows-gnu".into(),
        pointer_width: 32,
        data_layout: "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
            i64:64-f80:32-n8:16:32-a:0:32-S32"
            .into(),
        arch: "x86".into(),
        options: base,
    }
}