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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).
13 lines
470 B
Plaintext
13 lines
470 B
Plaintext
error[E0658]: the `#[cfi_encoding]` attribute is an experimental feature
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--> $DIR/feature-gate-cfi_encoding.rs:3:1
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LL | #[cfi_encoding = "3Bar"]
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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= note: see issue #89653 <https://github.com/rust-lang/rust/issues/89653> for more information
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= help: add `#![feature(cfi_encoding)]` to the crate attributes to enable
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0658`.
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