dbhistry.c revision 71867
1/****************************************************************************** 2 * 3 * Module Name: dbhistry - debugger HISTORY command 4 * $Revision: 17 $ 5 * 6 *****************************************************************************/ 7 8/****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117 118#include "acpi.h" 119#include "acparser.h" 120#include "acdispat.h" 121#include "amlcode.h" 122#include "acnamesp.h" 123#include "acparser.h" 124#include "acevents.h" 125#include "acinterp.h" 126#include "acdebug.h" 127#include "actables.h" 128 129#ifdef ENABLE_DEBUGGER 130 131#define _COMPONENT DEBUGGER 132 MODULE_NAME ("dbhistry") 133 134 135#define HI_NO_HISTORY 0 136#define HI_RECORD_HISTORY 1 137#define HISTORY_SIZE 20 138 139 140typedef struct HistoryInfo 141{ 142 NATIVE_CHAR Command[80]; 143 UINT32 CmdNum; 144 145} HISTORY_INFO; 146 147 148HISTORY_INFO HistoryBuffer[HISTORY_SIZE]; 149UINT16 LoHistory = 0; 150UINT16 NumHistory = 0; 151UINT16 NextHistoryIndex = 0; 152UINT32 NextCmdNum = 1; 153 154 155/******************************************************************************* 156 * 157 * FUNCTION: AcpiDbAddToHistory 158 * 159 * PARAMETERS: CommandLine - Command to add 160 * 161 * RETURN: None 162 * 163 * DESCRIPTION: Add a command line to the history buffer. 164 * 165 ******************************************************************************/ 166 167void 168AcpiDbAddToHistory ( 169 NATIVE_CHAR *CommandLine) 170{ 171 172 173 /* Put command into the next available slot */ 174 175 STRCPY (HistoryBuffer[NextHistoryIndex].Command, CommandLine); 176 HistoryBuffer[NextHistoryIndex].CmdNum = NextCmdNum; 177 178 /* Adjust indexes */ 179 180 if ((NumHistory == HISTORY_SIZE) && 181 (NextHistoryIndex == LoHistory)) 182 { 183 LoHistory++; 184 if (LoHistory >= HISTORY_SIZE) 185 { 186 LoHistory = 0; 187 } 188 } 189 190 NextHistoryIndex++; 191 if (NextHistoryIndex >= HISTORY_SIZE) 192 { 193 NextHistoryIndex = 0; 194 } 195 196 197 NextCmdNum++; 198 if (NumHistory < HISTORY_SIZE) 199 { 200 NumHistory++; 201 } 202 203} 204 205 206/******************************************************************************* 207 * 208 * FUNCTION: AcpiDbDisplayHistory 209 * 210 * PARAMETERS: None 211 * 212 * RETURN: None 213 * 214 * DESCRIPTION: Display the contents of the history buffer 215 * 216 ******************************************************************************/ 217 218void 219AcpiDbDisplayHistory (void) 220{ 221 NATIVE_UINT i; 222 UINT16 HistoryIndex; 223 224 225 HistoryIndex = LoHistory; 226 227 /* Dump entire history buffer */ 228 229 for (i = 0; i < NumHistory; i++) 230 { 231 AcpiOsPrintf ("%ld %s\n", HistoryBuffer[HistoryIndex].CmdNum, HistoryBuffer[HistoryIndex].Command); 232 233 HistoryIndex++; 234 if (HistoryIndex >= HISTORY_SIZE) 235 { 236 HistoryIndex = 0; 237 } 238 } 239} 240 241 242/******************************************************************************* 243 * 244 * FUNCTION: AcpiDbGetFromHistory 245 * 246 * PARAMETERS: CommandNumArg - String containing the number of the 247 * command to be retrieved 248 * 249 * RETURN: None 250 * 251 * DESCRIPTION: Get a command from the history buffer 252 * 253 ******************************************************************************/ 254 255NATIVE_CHAR * 256AcpiDbGetFromHistory ( 257 NATIVE_CHAR *CommandNumArg) 258{ 259 NATIVE_UINT i; 260 UINT16 HistoryIndex; 261 UINT32 CmdNum; 262 263 264 if (CommandNumArg == NULL) 265 { 266 CmdNum = NextCmdNum - 1; 267 } 268 269 else 270 { 271 CmdNum = STRTOUL (CommandNumArg, NULL, 0); 272 } 273 274 275 /* Search history buffer */ 276 277 HistoryIndex = LoHistory; 278 for (i = 0; i < NumHistory; i++) 279 { 280 if (HistoryBuffer[HistoryIndex].CmdNum == CmdNum) 281 { 282 /* Found the commnad, return it */ 283 284 return (HistoryBuffer[HistoryIndex].Command); 285 } 286 287 288 HistoryIndex++; 289 if (HistoryIndex >= HISTORY_SIZE) 290 { 291 HistoryIndex = 0; 292 } 293 } 294 295 AcpiOsPrintf ("Invalid history number: %d\n", HistoryIndex); 296 return (NULL); 297} 298 299 300#endif /* ENABLE_DEBUGGER */ 301 302