[edk2-devel] [edk2-platforms][PATCH 4/4] Platform/StandaloneMm: build StandaloneMmRpmb for 32bit architectures
Sami Mujawar
sami.mujawar at arm.com
Wed May 12 10:13:05 UTC 2021
Hi Etienn,
Thank you for this patch.
Please find my feedback inline marked [SAMI] .
With those fixed.
Reviewed-by: Sami Mujawar <sami.mujawar at arm.com>
Regards,
Sami Mujawar
On 10/05/2021 08:53 AM, Etienne Carriere wrote:
> Build PlatformStandaloneMmRpmb for ARM architecture (32bit arm machine).
> The generated image targets an execution environment similar to AArch64
> StMM secure partition in OP-TEE but in 32bit mode.
>
> GCC flag -fno-stack-protector
> added. The stack protection code bring
> GOT dependencies we prefer avoid when StMM runs in OP-TEE.
>
> Cc: Ard Biesheuvel <ardb+tianocore at kernel.org>
> Cc: Ilias Apalodimas <ilias.apalodimas at linaro.org>
> Cc: Leif Lindholm <leif at nuviainc.com>
> Cc: Sami Mujawar <sami.mujawar at arm.com>
> Signed-off-by: Etienne Carriere <etienne.carriere at linaro.org>
> ---
> Platform/StandaloneMm/PlatformStandaloneMmPkg/PlatformStandaloneMmRpmb.dsc | 12 +++++++++++-
> 1 file changed, 11 insertions(+), 1 deletion(-)
>
> diff --git a/Platform/StandaloneMm/PlatformStandaloneMmPkg/PlatformStandaloneMmRpmb.dsc b/Platform/StandaloneMm/PlatformStandaloneMmPkg/PlatformStandaloneMmRpmb.dsc
> index cb3f1ddf52..996d4e4ba9 100644
> --- a/Platform/StandaloneMm/PlatformStandaloneMmPkg/PlatformStandaloneMmRpmb.dsc
> +++ b/Platform/StandaloneMm/PlatformStandaloneMmPkg/PlatformStandaloneMmRpmb.dsc
> @@ -16,7 +16,7 @@
> PLATFORM_VERSION = 1.0
> DSC_SPECIFICATION = 0x0001001C
> OUTPUT_DIRECTORY = Build/$(PLATFORM_NAME)
> - SUPPORTED_ARCHITECTURES = AARCH64
> + SUPPORTED_ARCHITECTURES = ARM|AARCH64
> BUILD_TARGETS = DEBUG|RELEASE|NOOPT
> SKUID_IDENTIFIER = DEFAULT
> FLASH_DEFINITION = Platform/StandaloneMm/PlatformStandaloneMmPkg/PlatformStandaloneMmRpmb.fdf
> @@ -68,6 +68,12 @@
> #
> NULL|ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf
>
> +[LibraryClasses.ARM]
> + ArmSoftFloatLib|ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.inf
> + NULL|MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.inf
[SAMI] I think BaseStackCheckLib.inf can be moved to the
[LibraryClasses] section, right?
[/SAMI]
> + NULL|ArmPkg/Library/ArmSvcLib/ArmSvcLib.inf
[SAMI] ArmSvcLib.inf is already present in the [LibraryClasses] section.
[/SAMI]
> + RegisterFilterLib|MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.inf
[SAMI] I think 'MdePkg/MdeLibs.dsc.inc' can be included instead, right
after the [Defines] section.
This will also fix the build failure for AARCH64.
[/SAMI]
> +
> [LibraryClasses.common.MM_STANDALONE]
> HobLib|StandaloneMmPkg/Library/StandaloneMmHobLib/StandaloneMmHobLib.inf
> MmServicesTableLib|MdePkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.inf
> @@ -160,3 +166,7 @@
> [BuildOptions.AARCH64]
> GCC:*_*_*_DLINK_FLAGS = -z common-page-size=0x1000 -march=armv8-a+nofp
> GCC:*_*_*_CC_FLAGS = -mstrict-align
> +
> +[BuildOptions.ARM]
> +GCC:*_*_*_DLINK_FLAGS = -z common-page-size=0x1000 -march=armv7-a
> +GCC:*_*_*_CC_FLAGS = -fno-stack-protector
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