diff options
| author | qwang12 <qwang12@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-07-04 12:43:59 +0000 |
|---|---|---|
| committer | qwang12 <qwang12@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-07-04 12:43:59 +0000 |
| commit | 1eb73ab57aa6d49cd82eb2b3305ec39bba591d1f (patch) | |
| tree | 19c89a20bac24b562c2b8b139d8889694647a1fa /MdePkg/Library/BasePcdLibNull/PcdLib.c | |
| parent | 0d2001d31d1adf5d6abbff41c3eda82a2bd208cc (diff) | |
| download | edk2-platforms-1eb73ab57aa6d49cd82eb2b3305ec39bba591d1f.tar.xz | |
Added LibPatchPcdSetPtr.
Cleaup Pcd Database code generation routine.
Fixed a few bugs.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@745 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BasePcdLibNull/PcdLib.c')
| -rw-r--r-- | MdePkg/Library/BasePcdLibNull/PcdLib.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/MdePkg/Library/BasePcdLibNull/PcdLib.c b/MdePkg/Library/BasePcdLibNull/PcdLib.c index a2e46b05b2..e58965cc68 100644 --- a/MdePkg/Library/BasePcdLibNull/PcdLib.c +++ b/MdePkg/Library/BasePcdLibNull/PcdLib.c @@ -780,3 +780,52 @@ LibPcdGetNextTokenSpace ( {
return NULL;
}
+
+
+
+/**
+ Sets the PCD entry specified by PatchVariable to the value specified by Buffer
+ and SizeOfValue. Buffer is returned. If SizeOfValue is greater than
+ MaximumDatumSize, then set SizeOfValue to MaximumDatumSize and return
+ NULL to indicate that the set operation was not actually performed.
+ If SizeOfValue is set to MAX_ADDRESS, then SizeOfValue must be set to
+ MaximumDatumSize and NULL must be returned.
+
+ If PatchVariable is NULL, then ASSERT().
+ If SizeOfValue is NULL, then ASSERT().
+ If SizeOfValue > 0 and Buffer is NULL, then ASSERT().
+
+ @param[in] PatchVariable A pointer to the global variable in a module that is
+ the target of the set operation.
+ @param[in] MaximumDatumSize The maximum size allowed for the PCD entry specified by PatchVariable.
+ @param[in, out] SizeOfBuffer A pointer to the size, in bytes, of Buffer.
+ @param[in] Buffer A pointer to the buffer to used to set the target variable.
+
+**/
+VOID *
+EFIAPI
+LibPatchPcdSetPtr (
+ IN VOID *PatchVariable,
+ IN UINTN MaximumDatumSize,
+ IN OUT UINTN *SizeOfBuffer,
+ IN CONST VOID *Buffer
+ )
+{
+ ASSERT (PatchVariable != NULL);
+ ASSERT (SizeOfBuffer != NULL);
+
+ if (*SizeOfBuffer > 0) {
+ ASSERT (Buffer != NULL);
+ }
+
+ if ((*SizeOfBuffer > MaximumDatumSize) ||
+ (*SizeOfBuffer == MAX_ADDRESS)) {
+ *SizeOfBuffer = MaximumDatumSize;
+ return NULL;
+ }
+
+ CopyMem (PatchVariable, Buffer, *SizeOfBuffer);
+
+ return (VOID *) Buffer;
+}
+
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