1 /******************************************************************************
2 *
3 * Module Name: dbhistry - debugger HISTORY command
4 *
5 *****************************************************************************/
6
7 /******************************************************************************
8 *
9 * 1. Copyright Notice
10 *
11 * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
12 * All rights reserved.
13 *
14 * 2. License
15 *
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
19 * property rights.
20 *
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
27 *
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
36 *
37 * The above copyright and patent license is granted only if the following
38 * conditions are met:
39 *
40 * 3. Conditions
41 *
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
53 *
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
64 * make.
65 *
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
70 * distribution.
71 *
72 * 3.4. Intel retains all right, title, and interest in and to the Original
73 * Intel Code.
74 *
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
79 *
80 * 4. Disclaimer and Export Compliance
81 *
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88 * PARTICULAR PURPOSE.
89 *
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97 * LIMITED REMEDY.
98 *
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
113 *
114 *****************************************************************************/
115
116
117 #include "acpi.h"
118 #include "accommon.h"
119 #include "acdebug.h"
120
121 #ifdef ACPI_DEBUGGER
122
123 #define _COMPONENT ACPI_CA_DEBUGGER
124 ACPI_MODULE_NAME ("dbhistry")
125
126
127 #define HI_NO_HISTORY 0
128 #define HI_RECORD_HISTORY 1
129 #define HISTORY_SIZE 20
130
131
132 typedef struct HistoryInfo
133 {
134 char Command[80];
135 UINT32 CmdNum;
136
137 } HISTORY_INFO;
138
139
140 static HISTORY_INFO AcpiGbl_HistoryBuffer[HISTORY_SIZE];
141 static UINT16 AcpiGbl_LoHistory = 0;
142 static UINT16 AcpiGbl_NumHistory = 0;
143 static UINT16 AcpiGbl_NextHistoryIndex = 0;
144 static UINT32 AcpiGbl_NextCmdNum = 1;
145
146
147 /*******************************************************************************
148 *
149 * FUNCTION: AcpiDbAddToHistory
150 *
151 * PARAMETERS: CommandLine - Command to add
152 *
153 * RETURN: None
154 *
155 * DESCRIPTION: Add a command line to the history buffer.
156 *
157 ******************************************************************************/
158
159 void
AcpiDbAddToHistory(char * CommandLine)160 AcpiDbAddToHistory (
161 char *CommandLine)
162 {
163
164 /* Put command into the next available slot */
165
166 ACPI_STRCPY (AcpiGbl_HistoryBuffer[AcpiGbl_NextHistoryIndex].Command,
167 CommandLine);
168
169 AcpiGbl_HistoryBuffer[AcpiGbl_NextHistoryIndex].CmdNum = AcpiGbl_NextCmdNum;
170
171 /* Adjust indexes */
172
173 if ((AcpiGbl_NumHistory == HISTORY_SIZE) &&
174 (AcpiGbl_NextHistoryIndex == AcpiGbl_LoHistory))
175 {
176 AcpiGbl_LoHistory++;
177 if (AcpiGbl_LoHistory >= HISTORY_SIZE)
178 {
179 AcpiGbl_LoHistory = 0;
180 }
181 }
182
183 AcpiGbl_NextHistoryIndex++;
184 if (AcpiGbl_NextHistoryIndex >= HISTORY_SIZE)
185 {
186 AcpiGbl_NextHistoryIndex = 0;
187 }
188
189 AcpiGbl_NextCmdNum++;
190 if (AcpiGbl_NumHistory < HISTORY_SIZE)
191 {
192 AcpiGbl_NumHistory++;
193 }
194 }
195
196
197 /*******************************************************************************
198 *
199 * FUNCTION: AcpiDbDisplayHistory
200 *
201 * PARAMETERS: None
202 *
203 * RETURN: None
204 *
205 * DESCRIPTION: Display the contents of the history buffer
206 *
207 ******************************************************************************/
208
209 void
AcpiDbDisplayHistory(void)210 AcpiDbDisplayHistory (
211 void)
212 {
213 UINT32 i;
214 UINT16 HistoryIndex;
215
216
217 HistoryIndex = AcpiGbl_LoHistory;
218
219 /* Dump entire history buffer */
220
221 for (i = 0; i < AcpiGbl_NumHistory; i++)
222 {
223 AcpiOsPrintf ("%ld %s\n", AcpiGbl_HistoryBuffer[HistoryIndex].CmdNum,
224 AcpiGbl_HistoryBuffer[HistoryIndex].Command);
225
226 HistoryIndex++;
227 if (HistoryIndex >= HISTORY_SIZE)
228 {
229 HistoryIndex = 0;
230 }
231 }
232 }
233
234
235 /*******************************************************************************
236 *
237 * FUNCTION: AcpiDbGetFromHistory
238 *
239 * PARAMETERS: CommandNumArg - String containing the number of the
240 * command to be retrieved
241 *
242 * RETURN: Pointer to the retrieved command. Null on error.
243 *
244 * DESCRIPTION: Get a command from the history buffer
245 *
246 ******************************************************************************/
247
248 char *
AcpiDbGetFromHistory(char * CommandNumArg)249 AcpiDbGetFromHistory (
250 char *CommandNumArg)
251 {
252 UINT32 i;
253 UINT16 HistoryIndex;
254 UINT32 CmdNum;
255
256
257 if (CommandNumArg == NULL)
258 {
259 CmdNum = AcpiGbl_NextCmdNum - 1;
260 }
261
262 else
263 {
264 CmdNum = ACPI_STRTOUL (CommandNumArg, NULL, 0);
265 }
266
267 /* Search history buffer */
268
269 HistoryIndex = AcpiGbl_LoHistory;
270 for (i = 0; i < AcpiGbl_NumHistory; i++)
271 {
272 if (AcpiGbl_HistoryBuffer[HistoryIndex].CmdNum == CmdNum)
273 {
274 /* Found the commnad, return it */
275
276 return (AcpiGbl_HistoryBuffer[HistoryIndex].Command);
277 }
278
279
280 HistoryIndex++;
281 if (HistoryIndex >= HISTORY_SIZE)
282 {
283 HistoryIndex = 0;
284 }
285 }
286
287 AcpiOsPrintf ("Invalid history number: %d\n", HistoryIndex);
288 return (NULL);
289 }
290
291 #endif /* ACPI_DEBUGGER */
292
293