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MdeModulePkg/EbcDxe: Mitigate memcpy intrinsics

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Assignments of structure values cause the emission of memcpy()
intrinsics by the CLANG38 toolchain. Substitute the assignments with
calls to CopyMem() to mitigate the issue.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Vitaly Cheptsov <vit9696@protonmail.com>
Signed-off-by: Marvin H?user <mhaeuser@posteo.de>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
This commit is contained in:
Marvin H?user
2021-08-16 04:11:56 +08:00
committed by mergify[bot]
parent 77d5fa8024
commit b04453d36b
3 changed files with 15 additions and 3 deletions
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6
MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbHook.c
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@@ -230,7 +230,11 @@ EbcDebuggerPushTraceDestEntry (
//
ASSERT (mDebuggerPrivate.TraceEntry[EFI_DEBUGGER_TRACE_MAX].Type == Type);
for (Index = 0; Index < EFI_DEBUGGER_TRACE_MAX; Index++) {
mDebuggerPrivate.TraceEntry[Index] = mDebuggerPrivate.TraceEntry[Index + 1];
CopyMem (
&mDebuggerPrivate.TraceEntry[Index],
&mDebuggerPrivate.TraceEntry[Index + 1],
sizeof (mDebuggerPrivate.TraceEntry[Index])
);
}
mDebuggerPrivate.TraceEntry[EFI_DEBUGGER_CALLSTACK_MAX - 1].DestAddress = DestEntry;
mDebuggerPrivate.TraceEntryCount = EFI_DEBUGGER_TRACE_MAX;