Hi, On Sat, Aug 29, 2020 at 08:43:30AM -0700, H.J. Lu wrote: > On Sat, Aug 29, 2020 at 8:23 AM Mark Wielaard <m...@klomp.org> wrote: > > My proposal, and what my strawman patch implements, is that gas will > > generate a .debug_line section when -g is given and the debug types is > > DWARF (just as it does now). Unless there is a non-empty .debug_line > > section already created by the input assembly and the input assembly > > does not contain any .loc directive then gas will not try to generate > > a .debug_line section itself but leaves the non-empty .debug_line as > > is (currently gas will generate an error in this case). But if the > > input assembly does contain both .loc directives and creates a > > non-empty .debug line section gas will still generate an error (as it > > does now, whether or not the input assembly contains any .loc > > directives). > > > > Does this sound sane? > > What if there is a .file directive, but without .loc directive, like > > $ gcc -c x.c -Wa,-g
That situation does not change, since in that case no .debug_* sections are generated in the assembly file, so gas will generate everything it currently generates. Cheers, Mark
