<div dir="ltr">This may be a strong opinion but I would consider toolchains that explicitly change the default -march from the well understood x86-64 (which all 64-bit processors support) to be totally broken. If a distro wants to switch the -march for the packages, override CFLAGS :) </div> <div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Jun 29, 2022 at 10:57 PM dann frazier <<a href="mailto:dann.frazier@canonical.com">dann.frazier@canonical.com</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Ping on this. Would it be more palatable if I limited the change only to tested toolchains (gcc/clang)? Alternatively, is there a way to submit this code to CI to verify the !(gcc|clang) variants? -dann On Fri, Jun 10, 2022 at 12:09:18PM -0600, dann frazier wrote: > From: dann frazier <<a href="mailto:dann.frazier@canonical.com" target="_blank">dann.frazier@canonical.com</a>> > > 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 <<a href="mailto:dann.frazier@canonical.com" target="_blank">dann.frazier@canonical.com</a>> > --- > 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 > </blockquote></div> -- <div dir="ltr" class="gmail_signature"><div dir="ltr">Pedro Falcato</div></div> <div width="1" style="color:white;clear:both">_._,_._,_</div> <hr> Groups.io Links: You receive all messages sent to this group. <a target="_blank" href="https://edk2.groups.io/g/devel/message/90912">View/Reply Online (#90912)</a> 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