Messages in this thread Patch in this message | | | Date | Tue, 15 May 2018 01:23:47 -0400 (EDT) | From | Mikulas Patocka <> | Subject | [PATCH] x86: add the flag -fno-reorder-blocks-and-partition |
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GCC 8 turns on -freorder-blocks-and-partition by default, the ORC unwinder can't deal with it and it results in a lot of warnings "sibling call from callable instruction with modified stack frame". This patch adds the -fno-reorder-blocks-and-partition option to KBUILD_CFLAGS.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org
--- arch/x86/Makefile | 1 + 1 file changed, 1 insertion(+)
Index: linux-2.6/arch/x86/Makefile =================================================================== --- linux-2.6.orig/arch/x86/Makefile 2018-05-15 07:19:40.000000000 +0200 +++ linux-2.6/arch/x86/Makefile 2018-05-15 07:19:40.000000000 +0200 @@ -59,6 +59,7 @@ endif # KBUILD_CFLAGS += -mno-sse -mno-mmx -mno-sse2 -mno-3dnow KBUILD_CFLAGS += $(call cc-option,-mno-avx,) +KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks-and-partition,) ifeq ($(CONFIG_X86_32),y) BITS := 32
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