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 <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 <michael.d.kinney@intel.com>
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 <michael.d.kinney@intel.com> 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 <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 <chengchieh@google.com>
> 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 <chengchieh@google.com>
> ---
>  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
>
>
>
>
>