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| author | Wesley Wiser <wesleywiser@microsoft.com> | 2023-05-19 19:30:15 -0400 |
|---|---|---|
| committer | Wesley Wiser <wesleywiser@microsoft.com> | 2023-05-26 15:18:54 -0400 |
| commit | 019d75b44e3f4349495890453d2d154a8f7ba116 (patch) | |
| tree | 799eb3cf43244f783683bd449231fac0b8924c52 /compiler/rustc_codegen_llvm/src/attributes.rs | |
| parent | d22314e0f5fdb8ed1181dc1a9d1a85eb54b37c73 (diff) | |
| download | rust-019d75b44e3f4349495890453d2d154a8f7ba116.tar.gz rust-019d75b44e3f4349495890453d2d154a8f7ba116.zip | |
Add SafeStack support to rustc
Adds support for LLVM [SafeStack] which provides backward edge control flow protection by separating the stack into two parts: data which is only accessed in provable safe ways is allocated on the normal stack (the "safe stack") and all other data is placed in a separate allocation (the "unsafe stack"). SafeStack support is enabled by passing `-Zsanitizer=safestack`. [SafeStack]: https://clang.llvm.org/docs/SafeStack.html
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/attributes.rs')
| -rw-r--r-- | compiler/rustc_codegen_llvm/src/attributes.rs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_llvm/src/attributes.rs b/compiler/rustc_codegen_llvm/src/attributes.rs index 651d644ebb6..6d00464e0a0 100644 --- a/compiler/rustc_codegen_llvm/src/attributes.rs +++ b/compiler/rustc_codegen_llvm/src/attributes.rs @@ -88,6 +88,9 @@ pub fn sanitize_attrs<'ll>( attrs.push(llvm::AttributeKind::SanitizeMemTag.create_attr(cx.llcx)); } + if enabled.contains(SanitizerSet::SAFESTACK) { + attrs.push(llvm::AttributeKind::SanitizeSafeStack.create_attr(cx.llcx)); + } attrs } |