rust/compiler/rustc_codegen_llvm/src/llvm
Matthias Krüger 947fe7e341
Rollup merge of #105109 - rcvalle:rust-kcfi, r=bjorn3
Add LLVM KCFI support to the Rust compiler

This PR adds LLVM Kernel Control Flow Integrity (KCFI) support to the Rust compiler. It initially provides forward-edge control flow protection for operating systems kernels for Rust-compiled code only by aggregating function pointers in groups identified by their return and parameter types. (See llvm/llvm-project@cff5bef.)

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) will be provided in later work as part of this project by identifying C char and integer type uses at the time types are encoded (see Type metadata in the design document in the tracking issue #89653).

LLVM KCFI can be enabled with -Zsanitizer=kcfi.

Thank you again, `@bjorn3,` `@eddyb,` `@nagisa,` and `@ojeda,` for all the help!
2022-12-10 09:24:43 +01:00
..
archive_ro.rs Use object instead of LLVM for reading bitcode from rlibs 2022-07-25 16:07:23 +00:00
diagnostic.rs Remove dead code from cg_llvm 2022-07-26 11:29:18 +00:00
ffi.rs Rollup merge of #105109 - rcvalle:rust-kcfi, r=bjorn3 2022-12-10 09:24:43 +01:00
mod.rs LLVM 16: Switch to using MemoryEffects 2022-11-04 17:58:16 +00:00