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MdeModulePkg/EbcDebugger: Add check for Entry and RetEntry 

Entry and RetEntry might be NULL before used.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
This commit is contained in:
Shenglei Zhang 2019-10-15 10:30:27 +08:00 committed by Liming Gao
parent 0c1541d457
commit a7d69b6aaf
2 changed files with 2 additions and 2 deletions
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2
MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdSymbol.c
View File

@ -143,7 +143,7 @@ DebuggerDisplaySymbolAccrodingToAddress (
// Find the nearest symbol address // Find the nearest symbol address
// //
CandidateAddress = EbdFindSymbolAddress (Address, EdbMatchSymbolTypeNearestAddress, &Object, &Entry); CandidateAddress = EbdFindSymbolAddress (Address, EdbMatchSymbolTypeNearestAddress, &Object, &Entry);
if (CandidateAddress == 0 || CandidateAddress == (UINTN) -1) { if (CandidateAddress == 0 || CandidateAddress == (UINTN) -1 || Entry == NULL) {
EDBPrint (L"Symbole at Address not found!\n"); EDBPrint (L"Symbole at Address not found!\n");
return EFI_DEBUG_CONTINUE; return EFI_DEBUG_CONTINUE;
} else if (Address != CandidateAddress) { } else if (Address != CandidateAddress) {

2
MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbSymbol.c
View File

@ -2062,7 +2062,7 @@ EdbPrintSource (
&RetObject, &RetObject,
&RetEntry &RetEntry
); );
if (SymbolAddress == 0) { if (SymbolAddress == 0 || RetEntry == NULL) {
return 0 ; return 0 ;
} }