| Message ID | 1500802657-26243-1-git-send-email-bmeng.cn@gmail.com |
|---|---|
| State | Superseded |
| Delegated to: | Bin Meng |
| Headers | show |
On 23 July 2017 at 03:37, Bin Meng <bmeng.cn@gmail.com> wrote: > > At present U-Boot x86 build is using -mpreferred-stack-boundary=2 > which is 4 bytes stack boundary alignment. With 64-bit U-Boot, the > minimal required stack boundary alignment is 16 bytes. > > If -mpreferred-stack-boundary is not specified, the default is 4 > (16 bytes). Switch to use the default one. > > Signed-off-by: Bin Meng <bmeng.cn@gmail.com> > --- > > arch/x86/config.mk | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/config.mk b/arch/x86/config.mk index 74b87ce..043425e 100644 --- a/arch/x86/config.mk +++ b/arch/x86/config.mk @@ -10,8 +10,7 @@ CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000 PLATFORM_CPPFLAGS += -fno-strict-aliasing PLATFORM_CPPFLAGS += -fomit-frame-pointer PF_CPPFLAGS_X86 := $(call cc-option, -fno-toplevel-reorder, \ - $(call cc-option, -fno-unit-at-a-time)) \ - $(call cc-option, -mpreferred-stack-boundary=2) + $(call cc-option, -fno-unit-at-a-time)) PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_X86) PLATFORM_CPPFLAGS += -fno-dwarf2-cfi-asm
At present U-Boot x86 build is using -mpreferred-stack-boundary=2 which is 4 bytes stack boundary alignment. With 64-bit U-Boot, the minimal required stack boundary alignment is 16 bytes. If -mpreferred-stack-boundary is not specified, the default is 4 (16 bytes). Switch to use the default one. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> --- arch/x86/config.mk | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)