Light-weight Memory Management Routines for OpenSSL-based Crypto\r
Library at Runtime Phase.\r
\r
-Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
\r
**/\r
\r
-#include <OpenSslSupport.h>\r
+#include <CrtLibSupport.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/UefiRuntimeLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
#include <Guid/EventGroup.h>\r
\r
//----------------------------------------------------------------\r
#define RT_PAGE_FREE 0x00000000\r
#define RT_PAGE_USED 0x00000001\r
\r
-#define MIN_REQUIRED_BLOCKS 24\r
+#define MIN_REQUIRED_BLOCKS 600\r
\r
//\r
// Memory Page Table\r
//\r
// Event for Runtime Address Conversion.\r
//\r
-EFI_EVENT mVirtualAddressChangeEvent;\r
+STATIC EFI_EVENT mVirtualAddressChangeEvent;\r
\r
\r
/**\r
}\r
\r
//\r
- // No availabe region for object allocation!\r
+ // No available region for object allocation!\r
//\r
return (UINTN)(-1);\r
}\r
UINTN StartOffset;\r
UINTN StartPageIndex;\r
\r
- StartOffset = (UINTN) ((UINT8 *)Buffer - mRTPageTable->DataAreaBase);\r
+ StartOffset = (UINTN)Buffer - (UINTN)mRTPageTable->DataAreaBase;\r
StartPageIndex = RT_SIZE_TO_PAGES (mRTPageTable->Pages[RT_SIZE_TO_PAGES(StartOffset)].StartPageOffset);\r
\r
while (StartPageIndex < mRTPageTable->PageCount) {\r
/* Allocates memory blocks */\r
void *malloc (size_t size)\r
{\r
- return RuntimeAllocateMem ((UINTN)size);\r
+ return RuntimeAllocateMem ((UINTN) size);\r
}\r
\r
/* Reallocate memory blocks */\r
UINTN StartPageIndex;\r
UINTN PageCount;\r
\r
+ if (ptr == NULL) {\r
+ return malloc (size);\r
+ }\r
+\r
//\r
// Get Original Size of ptr\r
//\r
- StartOffset = (UINTN) ((UINT8 *)ptr - mRTPageTable->DataAreaBase);\r
+ StartOffset = (UINTN)ptr - (UINTN)mRTPageTable->DataAreaBase;\r
StartPageIndex = RT_SIZE_TO_PAGES (mRTPageTable->Pages[RT_SIZE_TO_PAGES (StartOffset)].StartPageOffset);\r
PageCount = 0;\r
while (StartPageIndex < mRTPageTable->PageCount) {\r
/* Deallocates or frees a memory block */\r
void free (void *ptr)\r
{\r
- RuntimeFreeMem (ptr);\r
+ //\r
+ // In Standard C, free() handles a null pointer argument transparently. This\r
+ // is not true of RuntimeFreeMem() below, so protect it.\r
+ //\r
+ if (ptr != NULL) {\r
+ RuntimeFreeMem (ptr);\r
+ }\r
}\r