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coverage: Add links to LLVM docs for the coverage mapping format

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Zalathar 2024-10-26 17:37:04 +11:00
parent 0356908cf5
commit 0d653a5866
1 changed files with 2 additions and 0 deletions
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compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
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@ -349,6 +349,7 @@ fn generate_covmap_record<'ll>(
llvm::set_linkage(llglobal, llvm::Linkage::PrivateLinkage);
llvm::set_section(llglobal, &covmap_section_name);
// LLVM's coverage mapping format specifies 8-byte alignment for items in this section.
// <https://llvm.org/docs/CoverageMappingFormat.html>
llvm::set_alignment(llglobal, Align::EIGHT);
cx.add_used_global(llglobal);
}
@ -400,6 +401,7 @@ fn generate_covfun_record(
llvm::set_visibility(llglobal, llvm::Visibility::Hidden);
llvm::set_section(llglobal, cx.covfun_section_name());
// LLVM's coverage mapping format specifies 8-byte alignment for items in this section.
// <https://llvm.org/docs/CoverageMappingFormat.html>
llvm::set_alignment(llglobal, Align::EIGHT);
if cx.target_spec().supports_comdat() {
llvm::set_comdat(cx.llmod, llglobal, &func_record_var_name);