On 20.04.2022 07:36, gaoliming wrote:
GCC Stack Protector options come from GCC4.9.3. But, there is GCC48 in
tools_def. I am not sure whether GCC48 is still used.
A valid point.
GCC 4.8 accepts -fno-stack-protector.
For IA32 and X64 this option is set in GCC48_$ARCH_CC_FLAGS.
Setting it for AARCH64 starting with GCC4.8 would be more consistent
than setting it for all versions by default.
Cheers,
Oliver
Thanks
Liming
-邮件原件-
发件人: devel@edk2.groups.io 代表 Oliver Steffen
发送时间: 2022年4月19日 22:47
收件人: devel@edk2.groups.io
抄送: bob.c.f...@intel.com; gaolim...@byosoft.com.cn;
yuwei.c...@intel.com; Oliver Steffen
主题: [edk2-devel] [PATCH 1/1] BaseTools: disable stack protector (gcc,
AARCH64)
Explicity disable the stack protection with
-fno-stack-protection for builds using GCC on
AARCH64.
The gcc on Ubuntu enables -fstack-protector-strong
by default starting with Ubuntu 21.10.
GenFw fails if stack protection is enabled.
Signed-off-by: Oliver Steffen
---
BaseTools/Conf/tools_def.template | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/BaseTools/Conf/tools_def.template
b/BaseTools/Conf/tools_def.template
index 9c310cf23d25..bd3edf0d219b 100755
--- a/BaseTools/Conf/tools_def.template
+++ b/BaseTools/Conf/tools_def.template
@@ -1872,7 +1872,7 @@ DEFINE GCC_IA32_CC_FLAGS =
DEF(GCC_ALL_CC_FLAGS) -m32 -malign-double -
DEFINE GCC_X64_CC_FLAGS= DEF(GCC_ALL_CC_FLAGS)
-mno-red-zone -Wno-address -mno-stack-arg-probe
DEFINE GCC_ARM_CC_FLAGS= DEF(GCC_ALL_CC_FLAGS)
-mlittle-endian -mabi=aapcs -fno-short-enums -funsigned-char
-ffunction-sections -fdata-sections -fomit-frame-pointer -Wno-address
-mthumb -mfloat-abi=soft -fno-pic -fno-pie
DEFINE GCC_ARM_CC_XIPFLAGS = -mno-unaligned-access
-DEFINE GCC_AARCH64_CC_FLAGS= DEF(GCC_ALL_CC_FLAGS)
-mlittle-endian -fno-short-enums -fverbose-asm -funsigned-char
-ffunction-sections -fdata-sections -Wno-address
-fno-asynchronous-unwind-tables -fno-unwind-tables -fno-pic -fno-pie
-ffixed-x18
+DEFINE GCC_AARCH64_CC_FLAGS= DEF(GCC_ALL_CC_FLAGS)
-mlittle-endian -fno-short-enums -fverbose-asm -funsigned-char
-ffunction-sections -fdata-sections -Wno-address
-fno-asynchronous-unwind-tables -fno-unwind-tables -fno-pic -fno-pie
-ffixed-x18 -fno-stack-protector
DEFINE GCC_AARCH64_CC_XIPFLAGS = -mstrict-align
-mgeneral-regs-only
DEFINE GCC_DLINK_FLAGS_COMMON = -nostdlib --pie
DEFINE GCC_DLINK2_FLAGS_COMMON =
-Wl,--script=$(EDK_TOOLS_PATH)/Scripts/GccBase.lds
--
2.35.1
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