hans added a comment. > I just saw @glandium's earlier comment: > >> Code built with older versions of LLVM (e.g. rust) and running with the >> updated runtime crash at startup with this change. > > This is the exact same issue we encountered. Because there is a profile > format change, it's expected to update both clang and rustc to use the same > version of llvm in order for it to work.
Thanks for figuring this out! Would it be possible to somehow make profile format mismatches a linker error instead of a hard-to-debug runtime problem? For example could the instrumentation depend on some symbol in the runtime whose name includes a version number? I think the ASan (and maybe other sanitizer) instrumentations do this. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D138846/new/ https://reviews.llvm.org/D138846 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
