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StandaloneMmPkg: Zero data structure explicitly

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Introduction of the -mstrict-align flag results in GCC attempting
to use memset to zero out the InitMmFoundationSvcArgs structure.
In the absence of this C library function, this patch explicitly
zeroes this data structure prior to use.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Achin Gupta <achin.gupta@arm.com>
Signed-off-by: Sughosh Ganu <sughosh.ganu@arm.com>
Reviewed-by: Achin Gupta <achin.gupta@arm.com>
This commit is contained in:
Achin Gupta 2018-12-03 12:50:54 +05:30
parent f8943176f0
commit d495142506
1 changed files with 2 additions and 1 deletions
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StandaloneMmPkg/Library/StandaloneMmCoreEntryPoint/AArch64/StandaloneMmCoreEntryPoint.c
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@ -224,7 +224,7 @@ _ModuleEntryPoint (
{ {
PE_COFF_LOADER_IMAGE_CONTEXT ImageContext; PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;
EFI_SECURE_PARTITION_BOOT_INFO *PayloadBootInfo; EFI_SECURE_PARTITION_BOOT_INFO *PayloadBootInfo;
ARM_SVC_ARGS InitMmFoundationSvcArgs = {0}; ARM_SVC_ARGS InitMmFoundationSvcArgs;
EFI_STATUS Status; EFI_STATUS Status;
UINT32 SectionHeaderOffset; UINT32 SectionHeaderOffset;
UINT16 NumberOfSections; UINT16 NumberOfSections;
@ -299,6 +299,7 @@ _ModuleEntryPoint (
DEBUG ((DEBUG_INFO, "Shared Cpu Driver EP 0x%lx\n", (UINT64) CpuDriverEntryPoint)); DEBUG ((DEBUG_INFO, "Shared Cpu Driver EP 0x%lx\n", (UINT64) CpuDriverEntryPoint));
finish: finish:
ZeroMem (&InitMmFoundationSvcArgs, sizeof(InitMmFoundationSvcArgs));
InitMmFoundationSvcArgs.Arg0 = ARM_SVC_ID_SP_EVENT_COMPLETE_AARCH64; InitMmFoundationSvcArgs.Arg0 = ARM_SVC_ID_SP_EVENT_COMPLETE_AARCH64;
InitMmFoundationSvcArgs.Arg1 = Status; InitMmFoundationSvcArgs.Arg1 = Status;
DelegatedEventLoop (&InitMmFoundationSvcArgs); DelegatedEventLoop (&InitMmFoundationSvcArgs);