Tools_def.txt doesn’t support build flag DISABLE_GCC_MMX_SSE. If this flag is moved into BaseTools\Conf\tools_def.template, -mno-mmx -mno-sse option will be the default GCC options. That means all platforms will apply them. Thanks Liming 发件人: devel@edk2.groups.io 代表 Cheng-Chieh Huang via groups.io 发送时间: 2021年7月22日 1:43 收件人: Kinney, Michael D 抄送: devel@edk2.groups.io 主题: Re: [edk2-devel] [PATCH v1 5/6] UefiPayloadPkg: Add DISABLE_MMX_SSE to avoid generating floating points operation Yes, we can. I will drop this patch for this uefipayload batch and send another one for support DISABLE_GCC_MMX_SSE in tools_de.txt. -- Cheng-Chieh On Thu, Jul 22, 2021, 12:35 AM Kinney, Michael D > wrote: Are those flags needed for all packages that build with GCC? Should this be moved into tools_def.txt? Mike > -----Original Message----- > From: devel@edk2.groups.io > On Behalf Of Cheng-Chieh Huang via groups.io > Sent: Wednesday, July 21, 2021 6:23 AM > To: devel@edk2.groups.io > Cc: Cheng-Chieh Huang > > Subject: [edk2-devel] [PATCH v1 5/6] UefiPayloadPkg: Add DISABLE_MMX_SSE to avoid generating floating points operation > > This will allow we compile payload using gcc8 > > Signed-off-by: Cheng-Chieh Huang > > --- > UefiPayloadPkg/UefiPayloadPkg.dsc | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/UefiPayloadPkg/UefiPayloadPkg.dsc b/UefiPayloadPkg/UefiPayloadPkg.dsc > index 8aa5f18cd35c..fa41c5a24af5 100644 > --- a/UefiPayloadPkg/UefiPayloadPkg.dsc > +++ b/UefiPayloadPkg/UefiPayloadPkg.dsc > @@ -30,6 +30,8 @@ [Defines] > DEFINE PS2_KEYBOARD_ENABLE = FALSE > DEFINE UNIVERSAL_PAYLOAD = FALSE > > + DEFINE DISABLE_MMX_SSE = FALSE > + > # > # SBL: UEFI payload for Slim Bootloader > # COREBOOT: UEFI payload for coreboot > @@ -96,6 +98,9 @@ [BuildOptions] > *_*_*_CC_FLAGS = -D DISABLE_NEW_DEPRECATED_INTERFACES > !if $(BOOTLOADER) == "LINUXBOOT" > *_*_*_CC_FLAGS = -D LINUXBOOT_PAYLOAD > +!endif > +!if $(DISABLE_MMX_SSE) > + *_*_*_CC_FLAGS = -mno-mmx -mno-sse > !endif > GCC:*_UNIXGCC_*_CC_FLAGS = -DMDEPKG_NDEBUG > GCC:RELEASE_*_*_CC_FLAGS = -DMDEPKG_NDEBUG > -- > 2.32.0.402.g57bb445576-goog > > > > >