From: dann frazier <dann.fraz...@canonical.com>

Some Linux distributions are experimenting with builds that target a
higher x86-64 psABI, such as x86-64-v3. To avoid inheriting these
compiler defaults in edk2 builds, and therefore breaking compatibility
with machines using older CPUs, explicitly target the generic x86-64
psABI. This is similar to how we explicitly specify the cpu type for
some other architectures (-march=i586 for IA32, -march=armv7-a for ARM).

Spot tested with OVMF builds using GCC5 and CLANG38.

Signed-off-by: dann frazier <dann.fraz...@canonical.com>
---
 BaseTools/Conf/tools_def.template | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/BaseTools/Conf/tools_def.template 
b/BaseTools/Conf/tools_def.template
index adcd23f727..569d16fb3e 100755
--- a/BaseTools/Conf/tools_def.template
+++ b/BaseTools/Conf/tools_def.template
@@ -1885,7 +1885,7 @@ DEFINE GCC_DEPS_FLAGS              = -MMD -MF $@.deps
 DEFINE GCC48_ALL_CC_FLAGS            = DEF(GCC_ALL_CC_FLAGS) 
-ffunction-sections -fdata-sections -DSTRING_ARRAY_NAME=$(BASE_NAME)Strings
 DEFINE GCC48_IA32_X64_DLINK_COMMON   = -nostdlib -Wl,-n,-q,--gc-sections -z 
common-page-size=0x20
 DEFINE GCC48_IA32_CC_FLAGS           = DEF(GCC48_ALL_CC_FLAGS) -m32 
-march=i586 -malign-double -fno-stack-protector -D EFI32 
-fno-asynchronous-unwind-tables -Wno-address
-DEFINE GCC48_X64_CC_FLAGS            = DEF(GCC48_ALL_CC_FLAGS) -m64 
-fno-stack-protector "-DEFIAPI=__attribute__((ms_abi))" 
-maccumulate-outgoing-args -mno-red-zone -Wno-address -mcmodel=small -fpie 
-fno-asynchronous-unwind-tables -Wno-address
+DEFINE GCC48_X64_CC_FLAGS            = DEF(GCC48_ALL_CC_FLAGS) -m64 
-march=x86-64 -fno-stack-protector "-DEFIAPI=__attribute__((ms_abi))" 
-maccumulate-outgoing-args -mno-red-zone -Wno-address -mcmodel=small -fpie 
-fno-asynchronous-unwind-tables -Wno-address
 DEFINE GCC48_IA32_X64_ASLDLINK_FLAGS = DEF(GCC48_IA32_X64_DLINK_COMMON) 
-Wl,--entry,ReferenceAcpiTable -u ReferenceAcpiTable
 DEFINE GCC48_IA32_X64_DLINK_FLAGS    = DEF(GCC48_IA32_X64_DLINK_COMMON) 
-Wl,--entry,$(IMAGE_ENTRY_POINT) -u $(IMAGE_ENTRY_POINT) 
-Wl,-Map,$(DEST_DIR_DEBUG)/$(BASE_NAME).map,--whole-archive
 DEFINE GCC48_IA32_DLINK2_FLAGS       = -Wl,--defsym=PECOFF_HEADER_SIZE=0x220 
DEF(GCC_DLINK2_FLAGS_COMMON)
@@ -2613,15 +2613,15 @@ NOOPT_CLANG38_IA32_DLINK2_FLAGS     = 
DEF(GCC5_IA32_DLINK2_FLAGS) -O0
 *_CLANG38_X64_ASLPP_FLAGS          = DEF(GCC_ASLPP_FLAGS) 
DEF(CLANG38_X64_TARGET)
 *_CLANG38_X64_VFRPP_FLAGS          = DEF(GCC_VFRPP_FLAGS) 
DEF(CLANG38_X64_TARGET)
 
-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
+DEBUG_CLANG38_X64_CC_FLAGS         = DEF(CLANG38_ALL_CC_FLAGS) -m64 
-march=x86-64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small 
-fpie -Oz -flto DEF(CLANG38_X64_TARGET) -g
 DEBUG_CLANG38_X64_DLINK_FLAGS      = DEF(GCC5_IA32_X64_DLINK_FLAGS) -flto 
-Wl,-Oz -Wl,-melf_x86_64 -Wl,--oformat=elf64-x86-64 -Wl,-pie -mcmodel=small
 DEBUG_CLANG38_X64_DLINK2_FLAGS     = DEF(GCC5_X64_DLINK2_FLAGS) -O3
 
-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)
+RELEASE_CLANG38_X64_CC_FLAGS       = DEF(CLANG38_ALL_CC_FLAGS) -m64 
-march=x86-64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small 
-fpie -Oz -flto DEF(CLANG38_X64_TARGET)
 RELEASE_CLANG38_X64_DLINK_FLAGS    = DEF(GCC5_IA32_X64_DLINK_FLAGS) -flto 
-Wl,-Oz -Wl,-melf_x86_64 -Wl,--oformat=elf64-x86-64 -Wl,-pie -mcmodel=small
 RELEASE_CLANG38_X64_DLINK2_FLAGS   = DEF(GCC5_X64_DLINK2_FLAGS) -O3
 
-NOOPT_CLANG38_X64_CC_FLAGS         = DEF(CLANG38_ALL_CC_FLAGS) -m64 
"-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small -fpie -O0 
DEF(CLANG38_X64_TARGET) -g
+NOOPT_CLANG38_X64_CC_FLAGS         = DEF(CLANG38_ALL_CC_FLAGS) -m64 
-march=x86-64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small 
-fpie -O0 DEF(CLANG38_X64_TARGET) -g
 NOOPT_CLANG38_X64_DLINK_FLAGS      = DEF(GCC5_IA32_X64_DLINK_FLAGS) -Wl,-O0 
-Wl,-melf_x86_64 -Wl,--oformat=elf64-x86-64 -Wl,-pie -mcmodel=small
 NOOPT_CLANG38_X64_DLINK2_FLAGS     = DEF(GCC5_X64_DLINK2_FLAGS) -O0
 
@@ -2798,17 +2798,17 @@ NOOPT_CLANGPDB_IA32_DLINK2_FLAGS     =
 *_CLANGPDB_X64_ASLPP_FLAGS          = DEF(GCC_ASLPP_FLAGS) 
DEF(CLANGPDB_X64_TARGET)
 *_CLANGPDB_X64_VFRPP_FLAGS          = DEF(GCC_VFRPP_FLAGS) 
DEF(CLANGPDB_X64_TARGET)
 
-DEBUG_CLANGPDB_X64_CC_FLAGS         = DEF(CLANGPDB_ALL_CC_FLAGS) -m64 
"-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small -Oz -flto 
DEF(CLANGPDB_X64_TARGET) -gcodeview  -funwind-tables
+DEBUG_CLANGPDB_X64_CC_FLAGS         = DEF(CLANGPDB_ALL_CC_FLAGS) -m64 
-march=x86-64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small 
-Oz -flto DEF(CLANGPDB_X64_TARGET) -gcodeview  -funwind-tables
 DEBUG_CLANGPDB_X64_DLINK_FLAGS      = /NOLOGO /NODEFAULTLIB /IGNORE:4001 
/OPT:REF /OPT:ICF=10 /ALIGN:32 /FILEALIGN:32 /Machine:X64 /DLL 
/ENTRY:$(IMAGE_ENTRY_POINT) /SUBSYSTEM:EFI_BOOT_SERVICE_DRIVER /SAFESEH:NO 
/BASE:0 /DEBUG:GHASH /MLLVM:-exception-model=wineh /lldmap
 DEBUG_CLANGPDB_X64_DLINK2_FLAGS     =
 DEBUG_CLANGPDB_X64_GENFW_FLAGS      = --keepexceptiontable
 
-RELEASE_CLANGPDB_X64_CC_FLAGS       = DEF(CLANGPDB_ALL_CC_FLAGS) -m64 
"-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small -Oz -flto 
DEF(CLANGPDB_X64_TARGET) -fno-unwind-tables
+RELEASE_CLANGPDB_X64_CC_FLAGS       = DEF(CLANGPDB_ALL_CC_FLAGS) -m64 
-march=x86-64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small 
-Oz -flto DEF(CLANGPDB_X64_TARGET) -fno-unwind-tables
 RELEASE_CLANGPDB_X64_DLINK_FLAGS    = /NOLOGO /NODEFAULTLIB /IGNORE:4001 
/IGNORE:4254 /OPT:REF /OPT:ICF=10 /ALIGN:32 /FILEALIGN:32 /SECTION:.xdata,D 
/SECTION:.pdata,D /Machine:X64 /DLL /ENTRY:$(IMAGE_ENTRY_POINT) 
/SUBSYSTEM:EFI_BOOT_SERVICE_DRIVER /SAFESEH:NO /BASE:0 /MERGE:.rdata=.data 
/MLLVM:-exception-model=wineh /lldmap
 RELEASE_CLANGPDB_X64_DLINK2_FLAGS   =
 RELEASE_CLANGPDB_X64_GENFW_FLAGS    =
 
-NOOPT_CLANGPDB_X64_CC_FLAGS         = DEF(CLANGPDB_ALL_CC_FLAGS) -m64 
"-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small -O0 
DEF(CLANGPDB_X64_TARGET) -gcodeview -funwind-tables
+NOOPT_CLANGPDB_X64_CC_FLAGS         = DEF(CLANGPDB_ALL_CC_FLAGS) -m64 
-march=x86-64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small 
-O0 DEF(CLANGPDB_X64_TARGET) -gcodeview -funwind-tables
 NOOPT_CLANGPDB_X64_DLINK_FLAGS      = /NOLOGO /NODEFAULTLIB /IGNORE:4001 
/OPT:REF /OPT:ICF=10 /ALIGN:32 /FILEALIGN:32 /Machine:X64 /DLL 
/ENTRY:$(IMAGE_ENTRY_POINT) /SUBSYSTEM:EFI_BOOT_SERVICE_DRIVER /SAFESEH:NO 
/BASE:0 /DEBUG:GHASH /MLLVM:-exception-model=wineh /lldmap
 NOOPT_CLANGPDB_X64_DLINK2_FLAGS     =
 NOOPT_CLANGPDB_X64_GENFW_FLAGS      = --keepexceptiontable
@@ -2901,15 +2901,15 @@ NOOPT_CLANGDWARF_IA32_DLINK2_FLAGS     = 
DEF(CLANGDWARF_IA32_DLINK2_FLAGS) -O0 -
 *_CLANGDWARF_X64_ASLPP_FLAGS          = DEF(GCC_ASLPP_FLAGS) 
DEF(CLANG38_X64_TARGET)
 *_CLANGDWARF_X64_VFRPP_FLAGS          = DEF(GCC_VFRPP_FLAGS) 
DEF(CLANG38_X64_TARGET)
 
-DEBUG_CLANGDWARF_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
+DEBUG_CLANGDWARF_X64_CC_FLAGS         = DEF(CLANG38_ALL_CC_FLAGS) -m64 
-march=x86-64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small 
-fpie -Oz -flto DEF(CLANG38_X64_TARGET) -g
 DEBUG_CLANGDWARF_X64_DLINK_FLAGS      = DEF(CLANGDWARF_IA32_X64_DLINK_FLAGS) 
-flto -Wl,-O3 -Wl,-melf_x86_64 -Wl,--oformat,elf64-x86-64 -Wl,-pie 
-mcmodel=small -Wl,--apply-dynamic-relocs
 DEBUG_CLANGDWARF_X64_DLINK2_FLAGS     = DEF(CLANGDWARF_X64_DLINK2_FLAGS) -O3 
-fuse-ld=lld
 
-RELEASE_CLANGDWARF_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)
+RELEASE_CLANGDWARF_X64_CC_FLAGS       = DEF(CLANG38_ALL_CC_FLAGS) -m64 
-march=x86-64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small 
-fpie -Oz -flto DEF(CLANG38_X64_TARGET)
 RELEASE_CLANGDWARF_X64_DLINK_FLAGS    = DEF(CLANGDWARF_IA32_X64_DLINK_FLAGS) 
-flto -Wl,-O3 -Wl,-melf_x86_64 -Wl,--oformat,elf64-x86-64 -Wl,-pie 
-mcmodel=small -Wl,--apply-dynamic-relocs
 RELEASE_CLANGDWARF_X64_DLINK2_FLAGS   = DEF(CLANGDWARF_X64_DLINK2_FLAGS) -O3 
-fuse-ld=lld
 
-NOOPT_CLANGDWARF_X64_CC_FLAGS         = DEF(CLANG38_ALL_CC_FLAGS) -m64 
"-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small -fpie -O0 
DEF(CLANG38_X64_TARGET) -g
+NOOPT_CLANGDWARF_X64_CC_FLAGS         = DEF(CLANG38_ALL_CC_FLAGS) -m64 
-march=x86-64 "-DEFIAPI=__attribute__((ms_abi))" -mno-red-zone -mcmodel=small 
-fpie -O0 DEF(CLANG38_X64_TARGET) -g
 NOOPT_CLANGDWARF_X64_DLINK_FLAGS      = DEF(CLANGDWARF_IA32_X64_DLINK_FLAGS) 
-Wl,-O0 -Wl,-melf_x86_64 -Wl,--oformat,elf64-x86-64 -Wl,-pie -mcmodel=small 
-Wl,--apply-dynamic-relocs
 NOOPT_CLANGDWARF_X64_DLINK2_FLAGS     = DEF(CLANGDWARF_X64_DLINK2_FLAGS) -O0 
-fuse-ld=lld
 
-- 
2.36.1



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