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| author | Nick Desaulniers <ndesaulniers@google.com> | 2022-09-19 19:45:47 +0200 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2022-09-24 04:19:19 +0200 |
| commit | 32ef9e5054ec0321b9336058c58ec749e9c6b0fe (patch) | |
| tree | 01c8bb2649848f563a292b9d05be9d5135e24890 /kernel/ksysfs.c | |
| parent | Makefile.debug: set -g unconditional on CONFIG_DEBUG_INFO_SPLIT (diff) | |
| download | linux-32ef9e5054ec0321b9336058c58ec749e9c6b0fe.tar.xz linux-32ef9e5054ec0321b9336058c58ec749e9c6b0fe.zip | |
Makefile.debug: re-enable debug info for .S files
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 b8a9092330da ("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 a66049e2cf0e ("Kbuild: make DWARF version a choice")
Link: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=31bf18645d98b4d3d7357353be840e320649a67d
Fixes: b8a9092330da ("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>
Diffstat (limited to 'kernel/ksysfs.c')
0 files changed, 0 insertions, 0 deletions