On Tue, Nov 3, 2020 at 4:00 PM Arvind Sankar <nivedita@xxxxxxxxxxxx> wrote: > > On Wed, Oct 21, 2020 at 06:21:06PM -0700, Nick Desaulniers wrote: > > Further -gdwarf-X where X is an unsupported value doesn't > > produce an error in $(CC). > > Do you have more details here? On godbolt.org, gcc does report an error > for unsupported dwarf versions. > > https://godbolt.org/z/G35798 > > gcc does not seem to pass the -gdwarf-* options to the assembler when > compiling C source. For assembler, gcc will pass an appropriate option > depending on the version of binutils it was configured with: if the > assembler doesn't support dwarf-5 it can call it with --gdwarf2 for eg. > > If the user is using a properly configured toolchain it doesn't look > like it should be an issue to just use cc-option? I wrote the base patch back in May, and didn't revisit until recently. I could have sworn the cc-option silently failed for the check cc-option does, which is /dev/null input. I need to recheck that, but it doesn't hurt to simply include it for now, which I've done in a v2 I'm about to send. -- Thanks, ~Nick Desaulniers
