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// Checks debuginfo compression both for the always-enabled zlib, and when the optional zstd is
// enabled:
// - via rustc's `debuginfo-compression`,
// - and via rust-lld's `compress-debug-sections`
//@ needs-llvm-zstd: we want LLVM/LLD to be built with zstd support
//@ needs-rust-lld: the system linker will most likely not support zstd
//@ only-linux
//@ ignore-cross-compile
use run_make_support::{Rustc, llvm_readobj, run_in_tmpdir};
fn check_compression(compression: &str, to_find: &str) {
// check compressed debug sections via rustc flag
prepare_and_check(to_find, |rustc| {
rustc.arg(&format!("-Zdebuginfo-compression={compression}"))
});
// check compressed debug sections via rust-lld flag
prepare_and_check(to_find, |rustc| {
rustc.link_arg(&format!("-Wl,--compress-debug-sections={compression}"))
});
}
fn prepare_and_check<F: FnOnce(&mut Rustc) -> &mut Rustc>(to_find: &str, prepare_rustc: F) {
run_in_tmpdir(|| {
let mut rustc = Rustc::new();
rustc
.arg("-Zlinker-features=+lld")
.arg("-Clink-self-contained=+linker")
.arg("-Zunstable-options")
.arg("-Cdebuginfo=full")
.input("main.rs");
prepare_rustc(&mut rustc).run();
llvm_readobj().arg("-t").arg("main").run().assert_stdout_contains(to_find);
});
}
fn main() {
check_compression("zlib", "ZLIB");
check_compression("zstd", "ZSTD");
}
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