From: Nick Desaulniers Date: Mon, 24 Oct 2022 20:34:14 +0000 (-0700) Subject: Makefile.debug: re-enable debug info for .S files X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0ee2f0567a56298e442464efd84d1f649068106e;p=linux.git Makefile.debug: re-enable debug info for .S files This is _not_ an upstream commit and just for 5.15.y only. It is based on commit 32ef9e5054ec0321b9336058c58ec749e9c6b0fe upstream. 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") Fixes: b8a9092330da ("Kbuild: do not emit debug info for assembly with LLVM_IAS=1") Signed-off-by: Nick Desaulniers Signed-off-by: Greg Kroah-Hartman --- diff --git a/Makefile b/Makefile index e3d63d529e0d7..6cbd4890cfa28 100644 --- a/Makefile +++ b/Makefile @@ -870,7 +870,9 @@ else DEBUG_CFLAGS += -g endif -ifndef CONFIG_AS_IS_LLVM +ifdef CONFIG_AS_IS_LLVM +KBUILD_AFLAGS += -g +else KBUILD_AFLAGS += -Wa,-gdwarf-2 endif