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use crate::spec::{
FloatAbi, LinkerFlavor, Lld, PanicStrategy, Target, TargetMetadata, TargetOptions, base,
};
pub(crate) fn target() -> Target {
let mut base = base::windows_msvc::opts();
// Prevent error LNK2013: BRANCH24(T) fixup overflow
// The LBR optimization tries to eliminate branch islands,
// but if the displacement is larger than can fit
// in the instruction, this error will occur. The linker
// should be smart enough to insert branch islands only
// where necessary, but this is not the observed behavior.
// Disabling the LBR optimization works around the issue.
base.add_pre_link_args(LinkerFlavor::Msvc(Lld::No), &["/OPT:NOLBR"]);
Target {
llvm_target: "thumbv7a-pc-windows-msvc".into(),
metadata: TargetMetadata {
description: None,
tier: Some(3),
host_tools: Some(false),
std: None, // ?
},
pointer_width: 32,
data_layout: "e-m:w-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(),
arch: "arm".into(),
options: TargetOptions {
llvm_floatabi: Some(FloatAbi::Hard),
features: "+vfp3,+neon".into(),
max_atomic_width: Some(64),
// FIXME(jordanrh): use PanicStrategy::Unwind when SEH is
// implemented for windows/arm in LLVM
panic_strategy: PanicStrategy::Abort,
..base
},
}
}
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