nickdesaulniers requested changes to this revision. nickdesaulniers added a comment. This revision now requires changes to proceed.
We'll probably need to investigate code gen a little. A mainline linux kernel defconfig built with `CONFIG_ZERO_CALL_USED_REGS=y` enabled doesn't boot, for example. I consider that a blocker before landing this (much-appreciated) feature; marking it as such. (Though it's possible that there are TUs in the kernel that may need to be built with `-fzero-call-used-regs=skip` that aren't (yet) failing with GCC). I don't observe the kernel getting to `start_kernel`, which is the arch-agnostic entry point of the boot; so there's likely x86 specific C code invoked before the generic boot code takes over that may not play well with the instrumentation as implemented. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D110869/new/ https://reviews.llvm.org/D110869 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
