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authorBin Meng <bmeng.cn@gmail.com>2017-07-27 13:12:34 (GMT)
committerBin Meng <bmeng.cn@gmail.com>2017-08-01 12:17:02 (GMT)
commit9a95f51ffecc8ff9cf09db1615c1a580731b722f (patch)
treed727c83a72acc8f13cd35d9c4f68ac836babf4ce /arch/x86
parent6364a5d4bd55beeedc11171419acd0bdff17a599 (diff)
downloadu-boot-fsl-qoriq-9a95f51ffecc8ff9cf09db1615c1a580731b722f.tar.xz
x86: Use default stack boundary alignment
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> Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/config.mk3
1 files changed, 1 insertions, 2 deletions
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