diff options
| -rw-r--r-- | MdePkg/Include/Library/DebugLib.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/MdePkg/Include/Library/DebugLib.h b/MdePkg/Include/Library/DebugLib.h index b0742969a8..033c4e1a66 100644 --- a/MdePkg/Include/Library/DebugLib.h +++ b/MdePkg/Include/Library/DebugLib.h @@ -593,8 +593,12 @@ UnitTestDebugAssert ( If MDEPKG_NDEBUG is defined or the DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit
of PcdDebugProperyMask is clear, then this macro computes the offset, in bytes,
of the field specified by Field from the beginning of the data structure specified
- by TYPE. This offset is subtracted from Record, and is used to return a pointer
- to a data structure of the type specified by TYPE.
+ by TYPE. This offset is subtracted from Record, and is used to compute a pointer
+ to a data structure of the type specified by TYPE. The Signature field of the
+ data structure specified by TYPE is compared to TestSignature. If the signatures
+ match, then a pointer to the pointer to a data structure of the type specified by
+ TYPE is returned. If the signatures do not match, then NULL is returned to
+ signify that the passed in data structure is invalid.
If MDEPKG_NDEBUG is not defined and the DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit
of PcdDebugProperyMask is set, then this macro computes the offset, in bytes,
@@ -628,9 +632,13 @@ UnitTestDebugAssert ( #define CR(Record, TYPE, Field, TestSignature) \
(DebugAssertEnabled () && (BASE_CR (Record, TYPE, Field)->Signature != TestSignature)) ? \
(TYPE *) (_ASSERT (CR has Bad Signature), Record) : \
+ (BASE_CR (Record, TYPE, Field)->Signature != TestSignature) ? \
+ NULL : \
BASE_CR (Record, TYPE, Field)
#else
#define CR(Record, TYPE, Field, TestSignature) \
+ (BASE_CR (Record, TYPE, Field)->Signature != TestSignature) ? \
+ NULL : \
BASE_CR (Record, TYPE, Field)
#endif
|