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3f194a86ee
This stabilizes a subset of the `-Clink-self-contained` components on x64 linux: the rust-lld opt-out. The opt-in is not stabilized, as interactions with other stable flags require more internal work, but are not needed for stabilizing using rust-lld by default. Similarly, since we only switch to rust-lld on x64 linux, the opt-out is only stabilized there. Other targets still require `-Zunstable-options` to use it.
38 lines
1.3 KiB
Rust
38 lines
1.3 KiB
Rust
// Test linking using `cc` with `rust-lld`, using the `-Clinker-features` and
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// `-Clink-self-contained` CLI flags.
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//@ needs-rust-lld
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//@ ignore-s390x lld does not yet support s390x as target
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use run_make_support::linker::{assert_rustc_doesnt_use_lld, assert_rustc_uses_lld};
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use run_make_support::rustc;
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fn main() {
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// Opt-in to lld and the self-contained linker, to link with rust-lld. We'll check that by
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// asking the linker to display its version number with a link-arg.
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assert_rustc_uses_lld(
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rustc()
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.arg("-Clinker-features=+lld")
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.arg("-Clink-self-contained=+linker")
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.arg("-Zunstable-options") // the opt-ins are unstable
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.input("main.rs"),
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);
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// It should not be used when we explicitly opt out of lld.
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assert_rustc_doesnt_use_lld(
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rustc().arg("-Clinker-features=-lld").arg("-Zunstable-options").input("main.rs"),
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);
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// While we're here, also check that the last linker feature flag "wins" when passed multiple
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// times to rustc.
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assert_rustc_uses_lld(
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rustc()
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.arg("-Clink-self-contained=+linker")
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.arg("-Zunstable-options")
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.arg("-Clinker-features=-lld")
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.arg("-Clinker-features=+lld")
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.arg("-Clinker-features=-lld,+lld")
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.input("main.rs"),
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);
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}
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