rustc_target/spec/targets/
aarch64_pc_windows_gnullvm.rs

1use crate::spec::{Arch, Cc, FramePointer, LinkerFlavor, Lld, Target, TargetMetadata, base};
2
3pub(crate) fn target() -> Target {
4    let mut base = base::windows_gnullvm::opts();
5    base.max_atomic_width = Some(128);
6    base.features = "+v8a,+neon,+fp-armv8".into();
7    base.linker = Some("aarch64-w64-mingw32-clang".into());
8    base.add_pre_link_args(LinkerFlavor::Gnu(Cc::No, Lld::No), &["-m", "arm64pe"]);
9
10    // Microsoft recommends enabling frame pointers on Arm64 Windows.
11    // From https://learn.microsoft.com/en-us/cpp/build/arm64-windows-abi-conventions?view=msvc-170#integer-registers
12    // "The frame pointer (x29) is required for compatibility with fast stack walking used by ETW
13    // and other services. It must point to the previous {x29, x30} pair on the stack."
14    base.frame_pointer = FramePointer::NonLeaf;
15
16    Target {
17        llvm_target: "aarch64-pc-windows-gnu".into(),
18        metadata: TargetMetadata {
19            description: Some("ARM64 MinGW (Windows 10+), LLVM ABI".into()),
20            tier: Some(2),
21            host_tools: Some(true),
22            std: Some(true),
23        },
24        pointer_width: 64,
25        data_layout:
26            "e-m:w-p270:32:32-p271:32:32-p272:64:64-p:64:64-i32:32-i64:64-i128:128-n32:64-S128-Fn32"
27                .into(),
28        arch: Arch::AArch64,
29        options: base,
30    }
31}