1 /****************************************************************************** 2 * 3 * Module Name: aslallocate -- Local memory allocation 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2018, Intel Corp. 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions, and the following disclaimer, 16 * without modification. 17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 * substantially similar to the "NO WARRANTY" disclaimer below 19 * ("Disclaimer") and any redistribution must be conditioned upon 20 * including a substantially similar Disclaimer requirement for further 21 * binary redistribution. 22 * 3. Neither the names of the above-listed copyright holders nor the names 23 * of any contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * Alternatively, this software may be distributed under the terms of the 27 * GNU General Public License ("GPL") version 2 as published by the Free 28 * Software Foundation. 29 * 30 * NO WARRANTY 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 * POSSIBILITY OF SUCH DAMAGES. 42 */ 43 44 #include "aslcompiler.h" 45 46 /* 47 * Local heap allocation wrappers. See aslcache.c for allocation from local 48 * cache alloctions 49 */ 50 51 52 /******************************************************************************* 53 * 54 * FUNCTION: UtLocalCalloc 55 * 56 * PARAMETERS: Size - Bytes to be allocated 57 * 58 * RETURN: Pointer to the allocated memory. If this function returns 59 * (the compiler is not aborted), the pointer is guaranteed to 60 * be valid. 61 * 62 * DESCRIPTION: Allocate zero-initialized memory. The point of this function 63 * is to abort the compile on an allocation failure, on the 64 * assumption that nothing more can be accomplished. 65 * 66 * NOTE: For allocation from the local caches, see aslcache.c 67 * 68 ******************************************************************************/ 69 70 void * 71 UtLocalCalloc ( 72 UINT32 Size) 73 { 74 void *Allocated; 75 76 77 Allocated = ACPI_ALLOCATE_ZEROED (Size); 78 if (!Allocated) 79 { 80 AslCommonError (ASL_ERROR, ASL_MSG_MEMORY_ALLOCATION, 81 Gbl_CurrentLineNumber, Gbl_LogicalLineNumber, 82 Gbl_InputByteCount, Gbl_CurrentColumn, 83 Gbl_Files[ASL_FILE_INPUT].Filename, NULL); 84 85 CmCleanupAndExit (); 86 exit (1); 87 } 88 89 TotalAllocations++; 90 TotalAllocated += Size; 91 return (Allocated); 92 } 93 94 95 /****************************************************************************** 96 * 97 * FUNCTION: UtExpandLineBuffers 98 * 99 * PARAMETERS: None. Updates global line buffer pointers. 100 * 101 * RETURN: None. Reallocates the global line buffers 102 * 103 * DESCRIPTION: Called if the current line buffer becomes filled. Reallocates 104 * all global line buffers and updates Gbl_LineBufferSize. NOTE: 105 * Also used for the initial allocation of the buffers, when 106 * all of the buffer pointers are NULL. Initial allocations are 107 * of size ASL_DEFAULT_LINE_BUFFER_SIZE 108 * 109 *****************************************************************************/ 110 111 void 112 UtExpandLineBuffers ( 113 void) 114 { 115 UINT32 NewSize; 116 117 118 /* Attempt to double the size of all line buffers */ 119 120 NewSize = Gbl_LineBufferSize * 2; 121 if (Gbl_CurrentLineBuffer) 122 { 123 DbgPrint (ASL_DEBUG_OUTPUT, 124 "Increasing line buffer size from %u to %u\n", 125 Gbl_LineBufferSize, NewSize); 126 } 127 128 UtReallocLineBuffers (&Gbl_CurrentLineBuffer, Gbl_LineBufferSize, NewSize); 129 UtReallocLineBuffers (&Gbl_MainTokenBuffer, Gbl_LineBufferSize, NewSize); 130 UtReallocLineBuffers (&Gbl_MacroTokenBuffer, Gbl_LineBufferSize, NewSize); 131 UtReallocLineBuffers (&Gbl_ExpressionTokenBuffer, Gbl_LineBufferSize, NewSize); 132 133 Gbl_LineBufPtr = Gbl_CurrentLineBuffer; 134 Gbl_LineBufferSize = NewSize; 135 } 136 137 138 /****************************************************************************** 139 * 140 * FUNCTION: UtReallocLineBuffers 141 * 142 * PARAMETERS: Buffer - Buffer to realloc 143 * OldSize - Old size of Buffer 144 * NewSize - New size of Buffer 145 * 146 * RETURN: none 147 * 148 * DESCRIPTION: Reallocate and initialize Buffer 149 * 150 *****************************************************************************/ 151 152 void 153 UtReallocLineBuffers ( 154 char **Buffer, 155 UINT32 OldSize, 156 UINT32 NewSize) 157 { 158 159 *Buffer = realloc (*Buffer, NewSize); 160 if (*Buffer) 161 { 162 memset (*Buffer + OldSize, 0, NewSize - OldSize); 163 return; 164 } 165 166 printf ("Could not increase line buffer size from %u to %u\n", 167 OldSize, NewSize); 168 169 AslError (ASL_ERROR, ASL_MSG_BUFFER_ALLOCATION, NULL, NULL); 170 AslAbort (); 171 } 172 173 174 /****************************************************************************** 175 * 176 * FUNCTION: UtFreeLineBuffers 177 * 178 * PARAMETERS: None 179 * 180 * RETURN: None 181 * 182 * DESCRIPTION: Free all line buffers 183 * 184 *****************************************************************************/ 185 186 void 187 UtFreeLineBuffers ( 188 void) 189 { 190 191 free (Gbl_CurrentLineBuffer); 192 free (Gbl_MainTokenBuffer); 193 free (Gbl_MacroTokenBuffer); 194 free (Gbl_ExpressionTokenBuffer); 195 } 196