mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-02 07:22:42 +00:00
004aa15b47
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).
12 lines
260 B
Rust
12 lines
260 B
Rust
// Verifies that "EnableSplitLTOUnit" module flag is added.
|
|
//
|
|
// needs-sanitizer-cfi
|
|
// compile-flags: -Clto -Ctarget-feature=-crt-static -Zsplit-lto-unit
|
|
|
|
#![crate_type="lib"]
|
|
|
|
pub fn foo() {
|
|
}
|
|
|
|
// CHECK: !{{[0-9]+}} = !{i32 4, !"EnableSplitLTOUnit", i32 1}
|