bjoernager/rust
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enable rust-lld on x86_64-unknown-linux-gnu when requested

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the `rust.lld` config enables rustc's `CFG_USE_SELF_CONTAINED_LINKER` env var, and we:
- set the linker-flavor to use lld
- enable the self-contained linker

this makes the target use the rust-lld linker by default
This commit is contained in:
Rémy Rakic 2023-09-21 18:26:38 +00:00
parent 5f04f6d7e1
commit 7695e5aeb4
2 changed files with 13 additions and 0 deletions
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6
compiler/rustc_target/src/spec/mod.rs
View file

@ -612,6 +612,12 @@ impl LinkSelfContainedDefault {
_ => "crt-objects-fallback",
}
}
/// Creates a `LinkSelfContainedDefault` enabling the self-contained linker for target specs
/// (the equivalent of `-Clink-self-contained=+linker` on the CLI).
pub fn with_linker() -> LinkSelfContainedDefault {
LinkSelfContainedDefault::WithComponents(LinkSelfContainedComponents::LINKER)
}
}
bitflags::bitflags! {

7
compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_gnu.rs
View file

@ -18,6 +18,13 @@ pub fn target() -> Target {
| SanitizerSet::THREAD;
base.supports_xray = true;
// When we're asked to use the `rust-lld` linker by default, set the appropriate lld-using
// linker flavor, and self-contained linker component.
if option_env!("CFG_USE_SELF_CONTAINED_LINKER").is_some() {
base.linker_flavor = LinkerFlavor::Gnu(Cc::Yes, Lld::Yes);
base.link_self_contained = crate::spec::LinkSelfContainedDefault::with_linker();
}
Target {
llvm_target: "x86_64-unknown-linux-gnu".into(),
metadata: crate::spec::TargetMetadata {