From: Andi Kleen <andi@xxxxxxxxxxxxxx> The mod tools scan assembler (devicetable-offsets.s) to generate symbols into devicetable-offsets.h and binary (empty.o) to find out ELF setup. That doesn't work with LTO. So just disable LTO for empty.o and devicetable-offsets.s. 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 <ak@xxxxxxxxxxxxxxx> Signed-off-by: Martin Liska <mliska@xxxxxxx> Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> --- scripts/mod/Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile index c9e38ad937fd..aa3465d6bc4a 100644 --- a/scripts/mod/Makefile +++ b/scripts/mod/Makefile @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 OBJECT_FILES_NON_STANDARD := y CFLAGS_REMOVE_empty.o += $(CC_FLAGS_LTO) +CFLAGS_REMOVE_empty.o += $(CC_FLAGS_LTO_GCC) hostprogs-always-y += modpost mk_elfconfig always-y += empty.o @@ -9,6 +10,8 @@ modpost-objs := modpost.o file2alias.o sumversion.o devicetable-offsets-file := devicetable-offsets.h +$(obj)/devicetable-offsets.s: KBUILD_CFLAGS += $(DISABLE_LTO_GCC) + $(obj)/$(devicetable-offsets-file): $(obj)/devicetable-offsets.s FORCE $(call filechk,offsets,__DEVICETABLE_OFFSETS_H__) -- 2.38.1
