From: Andi Kleen <andi@xxxxxxxxxxxxxx> Disable LTO when generating the bounds+asm-offsets.s files which are scanned for C constants. With a LTO build, the file would contain the gcc IR in assembler form, which breaks the scanning scripts. Cc: Masahiro Yamada <masahiroy@xxxxxxxxxx> Cc: Michal Marek <michal.lkml@xxxxxxxxxxx> Cc: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> Cc: linux-kbuild@xxxxxxxxxxxxxxx Signed-off-by: Andi Kleen <andi@xxxxxxxxxxxxxx> Signed-off-by: Martin Liska <mliska@xxxxxxx> Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> --- Kbuild | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Kbuild b/Kbuild index 464b34a08f51..40744d76d416 100644 --- a/Kbuild +++ b/Kbuild @@ -11,6 +11,8 @@ bounds-file := include/generated/bounds.h targets := kernel/bounds.s +kernel/bounds.s: KBUILD_CFLAGS += $(DISABLE_LTO_GCC) + $(bounds-file): kernel/bounds.s FORCE $(call filechk,offsets,__LINUX_BOUNDS_H__) @@ -30,6 +32,7 @@ offsets-file := include/generated/asm-offsets.h targets += arch/$(SRCARCH)/kernel/asm-offsets.s arch/$(SRCARCH)/kernel/asm-offsets.s: $(timeconst-file) $(bounds-file) +arch/$(SRCARCH)/kernel/asm-offsets.s: KBUILD_CFLAGS += $(DISABLE_LTO_GCC) $(offsets-file): arch/$(SRCARCH)/kernel/asm-offsets.s FORCE $(call filechk,offsets,__ASM_OFFSETS_H__) -- 2.38.1
