diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/Makefile | 4 | ||||
| -rw-r--r-- | arch/x86_64/Makefile | 4 |
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/i386/Makefile b/arch/i386/Makefile index 2d9d756fdd7..0677908dfa0 100644 --- a/arch/i386/Makefile +++ b/arch/i386/Makefile @@ -42,6 +42,10 @@ cflags-$(CONFIG_REGPARM) += -mregparm=3 # temporary until string.h is fixed cflags-y += -ffreestanding +# this works around some issues with generating unwind tables in older gccs +# newer gccs do it by default +cflags-y += -maccumulate-outgoing-args + # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use # a lot more stack due to the lack of sharing of stacklots: CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;) diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile index 1c0f18d4f88..13972148058 100644 --- a/arch/x86_64/Makefile +++ b/arch/x86_64/Makefile @@ -54,6 +54,10 @@ endif cflags-y += $(call cc-option,-funit-at-a-time) # prevent gcc from generating any FP code by mistake cflags-y += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,) +# this works around some issues with generating unwind tables in older gccs +# newer gccs do it by default +cflags-y += -maccumulate-outgoing-args + # do binutils support CFI? cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) |