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| author | Shi, Steven <steven.shi@intel.com> | 2016-08-19 10:46:20 +0800 |
|---|---|---|
| committer | Liming Gao <liming.gao@intel.com> | 2016-08-19 12:58:37 +0800 |
| commit | 6d732bbbc2b0463f367ceca381cb1861d52cf735 (patch) | |
| tree | 0d8dd65701ceda156d2cfb5df832ab28518299ab /BaseTools | |
| parent | 00bcb5c27a5bb781099482c5763937334be91e76 (diff) | |
| download | edk2-6d732bbbc2b0463f367ceca381cb1861d52cf735.tar.gz edk2-6d732bbbc2b0463f367ceca381cb1861d52cf735.tar.bz2 edk2-6d732bbbc2b0463f367ceca381cb1861d52cf735.zip | |
BaseTools-CLANG38: Add -O3 in DLINK2 flag
CLANG38 build fail after CC_FLAG is added in the link rule.
This failure is because the CLANG38 enable the LTO through LLVMgold.so
linker plugin, but the LLVMgold.so plugin cannot accept the clang -Oz
CC flag as build option. After CC_FLAG is added in the link rule,
the LLVMgold.so plugin reports linking error. LLVMgold.so only accept
-O0 ~ -O3, and you can see it in the LLVM gold plugin source code
in below:
http://llvm.org/svn/llvm-project/llvm/tags/RELEASE_380/final/tools/gold/
gold-plugin.cpp line173:
if (opt[1] < '0' || opt[1] > '3')
message(LDPL_FATAL, "Optimization level must be between 0 and 3");
Add -O3 in the *_CLANG38_*_DLINK2_FLAGS to override the -Oz flag in
*_CLANG38_*_CC_FLAGS to pass LLVMgold.so linking.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Steven Shi <steven.shi@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Diffstat (limited to 'BaseTools')
| -rwxr-xr-x | BaseTools/Conf/tools_def.template | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/BaseTools/Conf/tools_def.template b/BaseTools/Conf/tools_def.template index 974656cb38..42a3ca04b0 100755 --- a/BaseTools/Conf/tools_def.template +++ b/BaseTools/Conf/tools_def.template @@ -5489,7 +5489,7 @@ DEFINE CLANG38_ALL_CC_FLAGS = DEF(GCC44_ALL_CC_FLAGS) -Wno-empty-body -f DEBUG_CLANG38_IA32_CC_FLAGS = DEF(CLANG38_ALL_CC_FLAGS) -m32 -Oz -flto -march=i586 DEF(CLANG38_IA32_TARGET) -g
RELEASE_CLANG38_IA32_CC_FLAGS = DEF(CLANG38_ALL_CC_FLAGS) -m32 -Oz -flto -march=i586 DEF(CLANG38_IA32_TARGET)
*_CLANG38_IA32_DLINK_FLAGS = DEF(GCC5_IA32_X64_DLINK_FLAGS) -Wl,-Oz -Wl,-melf_i386 -Wl,--oformat=elf32-i386
-*_CLANG38_IA32_DLINK2_FLAGS = DEF(GCC5_IA32_DLINK2_FLAGS)
+*_CLANG38_IA32_DLINK2_FLAGS = DEF(GCC5_IA32_DLINK2_FLAGS) -O3
*_CLANG38_IA32_RC_FLAGS = DEF(GCC_IA32_RC_FLAGS)
*_CLANG38_IA32_OBJCOPY_FLAGS =
*_CLANG38_IA32_NASM_FLAGS = -f elf32
@@ -5518,7 +5518,7 @@ RELEASE_CLANG38_IA32_CC_FLAGS = DEF(CLANG38_ALL_CC_FLAGS) -m32 -Oz -flto - DEBUG_CLANG38_X64_CC_FLAGS = DEF(CLANG38_ALL_CC_FLAGS) -m64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small -fpie -Oz -flto DEF(CLANG38_X64_TARGET) -g
RELEASE_CLANG38_X64_CC_FLAGS = DEF(CLANG38_ALL_CC_FLAGS) -m64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small -fpie -Oz -flto DEF(CLANG38_X64_TARGET)
*_CLANG38_X64_DLINK_FLAGS = DEF(GCC5_IA32_X64_DLINK_FLAGS) -Wl,-Oz -Wl,-melf_x86_64 -Wl,--oformat=elf64-x86-64 -Wl,-pie -mcmodel=small
-*_CLANG38_X64_DLINK2_FLAGS = DEF(GCC5_X64_DLINK2_FLAGS)
+*_CLANG38_X64_DLINK2_FLAGS = DEF(GCC5_X64_DLINK2_FLAGS) -O3
*_CLANG38_X64_RC_FLAGS = DEF(GCC_X64_RC_FLAGS)
*_CLANG38_X64_OBJCOPY_FLAGS =
*_CLANG38_X64_NASM_FLAGS = -f elf64
|