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rustc_target: support Unix-flavor linkers for UEFI #110869

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rustc_target: support Unix-flavor linkers for UEFI #110869

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1 change: 1 addition & 0 deletions compiler/rustc_target/src/spec/msvc_base.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ pub fn opts() -> TargetOptions {
pre_link_args,
abi_return_struct_as_int: true,
emit_debug_gdb_scripts: false,
eh_frame_header: false,

// Currently this is the only supported method of debuginfo on MSVC
// where `*.pdb` files show up next to the final artifact.
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7 changes: 6 additions & 1 deletion compiler/rustc_target/src/spec/uefi_msvc_base.rs
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Expand Up @@ -9,7 +9,7 @@
// the timer-interrupt. Device-drivers are required to use polling-based models. Furthermore, all
// code runs in the same environment, no process separation is supported.

use crate::spec::{LinkerFlavor, Lld, PanicStrategy, StackProbeType, TargetOptions};
use crate::spec::{Cc, LinkerFlavor, Lld, PanicStrategy, StackProbeType, TargetOptions};

pub fn opts() -> TargetOptions {
let mut base = super::msvc_base::opts();
Expand All @@ -34,6 +34,11 @@ pub fn opts() -> TargetOptions {
],
);

base.add_pre_link_args(
LinkerFlavor::Unix(Cc::Yes),
&["-Wl,--entry=efi_main", "-Wl,--subsystem=efi_application"],
);

TargetOptions {
os: "uefi".into(),
linker_flavor: LinkerFlavor::Msvc(Lld::Yes),
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