[edk2-devel] [PATCH v2 2/2] UefiCpuPkg/BaseUefiCpuLib: Use toolchain-specific rodata section name

[Ni, Ray]

Acked-by: Ray Ni <ray.ni at intel.com>

I will depend on tool owner to review the tool configuration change making sure that the correct section name is chosen for different C compilers.

Thanks,
Ray

> -----Original Message-----
> From: Marvin Häuser <mhaeuser at posteo.de>
> Sent: Monday, August 9, 2021 5:51 PM
> To: devel at edk2.groups.io
> Cc: Dong, Eric <eric.dong at intel.com>; Ni, Ray <ray.ni at intel.com>; Kumar, Rahul1 <rahul1.kumar at intel.com>; Vitaly Cheptsov
> <vit9696 at protonmail.com>
> Subject: [PATCH v2 2/2] UefiCpuPkg/BaseUefiCpuLib: Use toolchain-specific rodata section name
> 
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3318
> 
> Correctly define the read-only data sections with the
> toolchain-specific section name. This hardens image permission
> security and may save image space.
> 
> Cc: Eric Dong <eric.dong at intel.com>
> Cc: Ray Ni <ray.ni at intel.com>
> Cc: Rahul Kumar <rahul1.kumar at intel.com>
> Cc: Vitaly Cheptsov <vit9696 at protonmail.com>
> Signed-off-by: Marvin Häuser <mhaeuser at posteo.de>
> ---
>  UefiCpuPkg/Library/BaseUefiCpuLib/Ia32/InitializeFpu.nasm | 2 +-
>  UefiCpuPkg/Library/BaseUefiCpuLib/X64/InitializeFpu.nasm  | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/UefiCpuPkg/Library/BaseUefiCpuLib/Ia32/InitializeFpu.nasm
> b/UefiCpuPkg/Library/BaseUefiCpuLib/Ia32/InitializeFpu.nasm
> index 5e27cc325012..cfb8bf4a5ae0 100644
> --- a/UefiCpuPkg/Library/BaseUefiCpuLib/Ia32/InitializeFpu.nasm
> +++ b/UefiCpuPkg/Library/BaseUefiCpuLib/Ia32/InitializeFpu.nasm
> @@ -6,7 +6,7 @@
>  ;*
> 
>  ;------------------------------------------------------------------------------
> 
> 
> 
> -    SECTION .rodata
> 
> +    SECTION RODATA_SECTION_NAME
> 
> 
> 
>  ;
> 
>  ; Float control word initial value:
> 
> diff --git a/UefiCpuPkg/Library/BaseUefiCpuLib/X64/InitializeFpu.nasm
> b/UefiCpuPkg/Library/BaseUefiCpuLib/X64/InitializeFpu.nasm
> index 8485b4713548..3c976a21e391 100644
> --- a/UefiCpuPkg/Library/BaseUefiCpuLib/X64/InitializeFpu.nasm
> +++ b/UefiCpuPkg/Library/BaseUefiCpuLib/X64/InitializeFpu.nasm
> @@ -6,7 +6,7 @@
>  ;*
> 
>  ;------------------------------------------------------------------------------
> 
> 
> 
> -    SECTION .rodata
> 
> +    SECTION RODATA_SECTION_NAME
> 
>  ;
> 
>  ; Float control word initial value:
> 
>  ; all exceptions masked, double-extended-precision, round-to-nearest
> 
> --
> 2.31.1



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