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Allow disabling ASan instrumentation for globals

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AddressSanitizer adds instrumentation to global variables unless the
[`no_sanitize_address`](https://llvm.org/docs/LangRef.html#global-attributes)
attribute is set on them.

This commit extends the existing `#[no_sanitize(address)]` attribute to
set this; previously it only had the desired effect on functions.
This commit is contained in:
Daniel Bertalan 2024-07-08 15:49:50 +02:00
parent 00ed73cdc0
commit 204b2281fa
10 changed files with 137 additions and 34 deletions
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2
compiler/rustc_codegen_llvm/src/consts.rs
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@ -476,6 +476,8 @@ impl<'ll> CodegenCx<'ll, '_> {
base::set_link_section(g, attrs);
}
base::set_variable_sanitizer_attrs(g, attrs);
if attrs.flags.contains(CodegenFnAttrFlags::USED) {
// `USED` and `USED_LINKER` can't be used together.
assert!(!attrs.flags.contains(CodegenFnAttrFlags::USED_LINKER));