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| author | Ramon de C Valle <rcvalle@users.noreply.github.com> | 2022-12-12 22:42:44 -0800 |
|---|---|---|
| committer | Ramon de C Valle <rcvalle@users.noreply.github.com> | 2023-05-03 22:41:29 +0000 |
| commit | 004aa15b4718c34ca367f77c6d57c63d670c4f56 (patch) | |
| tree | 25ddeb31ce110f68011a154518ecdbfdd814f80a /compiler/rustc_hir | |
| parent | fec9adcdbc21469ef105162cc8cabf81c72d06be (diff) | |
| download | rust-004aa15b4718c34ca367f77c6d57c63d670c4f56.tar.gz rust-004aa15b4718c34ca367f77c6d57c63d670c4f56.zip | |
Add cross-language LLVM CFI support to the Rust compiler
This commit adds cross-language LLVM Control Flow Integrity (CFI) support to the Rust compiler by adding the `-Zsanitizer-cfi-normalize-integers` option to be used with Clang `-fsanitize-cfi-icall-normalize-integers` for normalizing integer types (see https://reviews.llvm.org/D139395). It provides forward-edge control flow protection for C or C++ and Rust -compiled code "mixed binaries" (i.e., for when C or C++ and Rust -compiled code share the same virtual address space). For more information about LLVM CFI and cross-language LLVM CFI support for the Rust compiler, see design document in the tracking issue #89653. Cross-language LLVM CFI can be enabled with -Zsanitizer=cfi and -Zsanitizer-cfi-normalize-integers, and requires proper (i.e., non-rustc) LTO (i.e., -Clinker-plugin-lto).
Diffstat (limited to 'compiler/rustc_hir')
| -rw-r--r-- | compiler/rustc_hir/src/lang_items.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_hir/src/lang_items.rs b/compiler/rustc_hir/src/lang_items.rs index 8f91a96f964..48be35596b0 100644 --- a/compiler/rustc_hir/src/lang_items.rs +++ b/compiler/rustc_hir/src/lang_items.rs @@ -226,6 +226,7 @@ language_item_table! { PartialEq, sym::eq, eq_trait, Target::Trait, GenericRequirement::Exact(1); PartialOrd, sym::partial_ord, partial_ord_trait, Target::Trait, GenericRequirement::Exact(1); + CVoid, sym::c_void, c_void, Target::Enum, GenericRequirement::None; // A number of panic-related lang items. The `panic` item corresponds to divide-by-zero and // various panic cases with `match`. The `panic_bounds_check` item is for indexing arrays. |