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2e6d82c9c9
This stabilizes a subset of the `-Clinker-features` components on x64 linux: the 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.
31 lines
1.1 KiB
Rust
31 lines
1.1 KiB
Rust
// Test linking using `cc` with `rust-lld`, using a custom target with features described in MCP 510
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// see https://github.com/rust-lang/compiler-team/issues/510 for more info:
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//
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// Starting from the `x86_64-unknown-linux-gnu` target spec, we add the following options:
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// - a linker-flavor using lld via a C compiler
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// - the self-contained linker component is enabled
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//@ needs-rust-lld
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//@ only-x86_64-unknown-linux-gnu
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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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// Compile to a custom target spec with rust-lld enabled by default. We'll check that by asking
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// the linker to display its version number with a link-arg.
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assert_rustc_uses_lld(
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rustc().crate_type("cdylib").target("custom-target.json").input("lib.rs"),
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);
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// But it can also be disabled via linker features.
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assert_rustc_doesnt_use_lld(
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rustc()
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.crate_type("cdylib")
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.target("custom-target.json")
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.arg("-Clinker-features=-lld")
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.arg("-Zunstable-options")
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.input("lib.rs"),
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);
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}
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