MaskRay added a comment. In D104556#2998159 <https://reviews.llvm.org/D104556#2998159>, @catenacyber wrote:
>> .profraw are files with the raw profile format. The compiler-rt/lib/profile >> runtime and llvm-profdata only support one version at any commit. > > Ok. > >> Mixing .profraw files produced by different compiler-rt/lib/profile runtimes >> is unsupported. > > I do not think I am mixing profraw files as I have only one profraw file. > If my llvm-profdata is not supporting the profraw file produced by rust + > linker, should it not error with > ` Unsupported instrumentation profile format version` instead of `malformed > instrumentation profile data` > As it does with rust nightly and clang 12 ? > >> I don't know what rustc and https://github.com/ctz/rustls do. > > Rustls is just an example rust project, I think we get the same result with > every rust project. Wild guess: this is "Support for older format versions in RawInstrProfReader" https://lists.llvm.org/pipermail/llvm-dev/2021-August/152287.html >> I don't think this change is responsible as the change has been well >> released/tested by many C++ groups. > > I guess I did not mean to use the word responsible. > I am just saying that if I `git revert > a1532ed27582038e2d9588108ba0fe8237f01844` and solve the conflicts on top of > main, I get my scenario to work again > >> If Rust adapts compiler-rt and does something different, I think the >> investigation responsibility is on Rust's side. >> >> Perhaps you can get some help from rustc folks who do the compiler-rt >> adaptation in rustc. > > I am asking indeed The error only happens when you have mix-and-match .profraw files. You'll need to rebuild everything on the Rust side if you want to use git LLVM. I guess that rustc itself or some prebuilt executable is using an old format. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D104556/new/ https://reviews.llvm.org/D104556 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
