nathanchance added a comment. In D105169#3236484 <https://reviews.llvm.org/D105169#3236484>, @hyeongyukim wrote:
> @nathanchance > > I tried to reproduce the last warning (intelfbhw_validate_mode), but I failed > to produce it. > I think my reproducer is correct, but it does not make any warning. > Can you tell me which part was wrong? > > clang -O2 -flto=thin -fsanitize=integer-divide-by-zero -c -o intelfb.o > intelfb.i > ld.lld -m elf_x86_64 -r -o intelfb.lto.o --whole-archive intelfb.o > objtool orc generate --module --no-fp --no-unreachable --uaccess --mcount > intelfb.lto.o > > I use these commands, and I attached the `intelfb.i` file.F21595840: > intelfb.i <https://reviews.llvm.org/F21595840> It looks like this particular case also needs `-fsanitize-coverage=trace-pc` (which comes from `CONFIG_KCOV`). Once I add that with your reduced reproducer, I see the initial warning. $ clang -O2 -flto=thin -fsanitize=integer-divide-by-zero -fsanitize-coverage=trace-pc -c -o intelfb.{o,i} $ ld.lld -m elf_x86_64 -r -o intelfb.lto.o --whole-archive intelfb.o $ ./objtool orc generate --module --no-fp --no-unreachable --uaccess --mcount intelfb.lto.o intelfb.lto.o: warning: objtool: .text.intelfbhw_validate_mode: unexpected end of section Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D105169/new/ https://reviews.llvm.org/D105169 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
