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bors a8f6e614f8 Auto merge of #89652 - rcvalle:rust-cfi, r=nagisa 
Add LLVM CFI support to the Rust compiler

This PR adds LLVM Control Flow Integrity (CFI) support to the Rust compiler. It initially provides forward-edge control flow protection for Rust-compiled code only by aggregating function pointers in groups identified by their number of arguments.

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 defining and using compatible type identifiers (see Type metadata in the design document in the tracking issue #89653).

LLVM CFI can be enabled with -Zsanitizer=cfi and requires LTO (i.e., -Clto).

Thank you, `@eddyb` and `@pcc,` for all the help!
2021-10-27 09:19:42 +00:00
..
src Auto merge of #89652 - rcvalle:rust-cfi, r=nagisa 2021-10-27 09:19:42 +00:00
Cargo.toml Migrate to 2021 2021-09-20 22:21:42 -04:00
README.md Fix outdated crate names in compiler docs 2021-04-08 11:12:14 -05:00

README.md

rustc_target contains some very low-level details that are specific to different compilation targets and so forth.

For more information about how rustc works, see the rustc dev guide.