Makefile.debug: re-enable debug info for .S files
[ Upstream commit 32ef9e50 ] Alexey reported that the fraction of unknown filename instances in kallsyms grew from ~0.3% to ~10% recently; Bill and Greg tracked it down to assembler defined symbols, which regressed as a result of: commit b8a90923 ("Kbuild: do not emit debug info for assembly with LLVM_IAS=1") In that commit, I allude to restoring debug info for assembler defined symbols in a follow up patch, but it seems I forgot to do so in commit a66049e2 ("Kbuild: make DWARF version a choice") Link: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=31bf18645d98b4d3d7357353be840e320649a67d Fixes: b8a90923 ("Kbuild: do not emit debug info for assembly with LLVM_IAS=1") Reported-by:Alexey Alexandrov <aalexand@google.com> Reported-by:
Bill Wendling <morbo@google.com> Reported-by:
Greg Thelen <gthelen@google.com> Reviewed-by:
Nathan Chancellor <nathan@kernel.org> Suggested-by:
Masahiro Yamada <masahiroy@kernel.org> Signed-off-by:
Nick Desaulniers <ndesaulniers@google.com> Signed-off-by:
Masahiro Yamada <masahiroy@kernel.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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