rustc_target/spec/targets/
i686_uwp_windows_gnu.rs

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use crate::spec::{Cc, FramePointer, LinkerFlavor, Lld, Target, base};

pub(crate) fn target() -> Target {
    let mut base = base::windows_uwp_gnu::opts();
    base.cpu = "pentium4".into();
    base.max_atomic_width = Some(64);
    base.frame_pointer = FramePointer::Always; // Required for backtraces

    // Mark all dynamic libraries and executables as compatible with the larger 4GiB address
    // space available to x86 Windows binaries on x86_64.
    base.add_pre_link_args(LinkerFlavor::Gnu(Cc::No, Lld::No), &[
        "-m",
        "i386pe",
        "--large-address-aware",
    ]);
    base.add_pre_link_args(LinkerFlavor::Gnu(Cc::Yes, Lld::No), &["-Wl,--large-address-aware"]);

    Target {
        llvm_target: "i686-pc-windows-gnu".into(),
        metadata: crate::spec::TargetMetadata {
            description: None,
            tier: Some(3),
            host_tools: Some(false),
            std: None, // ?
        },
        pointer_width: 32,
        data_layout: "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
            i64:64-i128:128-f80:32-n8:16:32-a:0:32-S32"
            .into(),
        arch: "x86".into(),
        options: base,
    }
}