CryptoPkg/Library/BaseCryptLib/SysCall/BaseMemAllocation.c

   1 /** @file
   2   Base Memory Allocation Routines Wrapper for Crypto library over OpenSSL
   3   during PEI & DXE phases.
   4
   5 Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>
   6 This program and the accompanying materials
   7 are licensed and made available under the terms and conditions of the BSD License
   8 which accompanies this distribution.  The full text of the license may be found at
   9 http://opensource.org/licenses/bsd-license.php
  10
  11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15
  16 #include <OpenSslSupport.h>
  17
  18 //
  19 // -- Memory-Allocation Routines --
  20 //
  21
  22 /* Allocates memory blocks */
  23 void *malloc (size_t size)
  24 {
  25   return AllocatePool ((UINTN) size);
  26 }
  27
  28 /* Reallocate memory blocks */
  29 void *realloc (void *ptr, size_t size)
  30 {
  31   //
  32   // BUG: hardcode OldSize == size! We have no any knowledge about
  33   // memory size of original pointer ptr.
  34   //
  35   return ReallocatePool ((UINTN) size, (UINTN) size, ptr);
  36 }
  37
  38 /* De-allocates or frees a memory block */
  39 void free (void *ptr)
  40 {
  41   //
  42   // In Standard C, free() handles a null pointer argument transparently. This
  43   // is not true of FreePool() below, so protect it.
  44   //
  45   if (ptr != NULL) {
  46     FreePool (ptr);
  47   }
  48 }