dbhistry.c revision 91116 
1/******************************************************************************
2 *
3 * Module Name: dbhistry - debugger HISTORY command
4 *              $Revision: 22 $
5 *
6 *****************************************************************************/
7
8/******************************************************************************
9 *
10 * 1. Copyright Notice
11 *
12 * Some or all of this work - Copyright (c) 1999 - 2002, 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          ACPI_DEBUGGER
132        ACPI_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                AcpiGbl_HistoryBuffer[HISTORY_SIZE];
149UINT16                      AcpiGbl_LoHistory = 0;
150UINT16                      AcpiGbl_NumHistory = 0;
151UINT16                      AcpiGbl_NextHistoryIndex = 0;
152UINT32                      AcpiGbl_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    /* Put command into the next available slot */
173
174    ACPI_STRCPY (AcpiGbl_HistoryBuffer[AcpiGbl_NextHistoryIndex].Command, CommandLine);
175
176    AcpiGbl_HistoryBuffer[AcpiGbl_NextHistoryIndex].CmdNum = AcpiGbl_NextCmdNum;
177
178    /* Adjust indexes */
179
180    if ((AcpiGbl_NumHistory == HISTORY_SIZE) &&
181        (AcpiGbl_NextHistoryIndex == AcpiGbl_LoHistory))
182    {
183        AcpiGbl_LoHistory++;
184        if (AcpiGbl_LoHistory >= HISTORY_SIZE)
185        {
186            AcpiGbl_LoHistory = 0;
187        }
188    }
189
190    AcpiGbl_NextHistoryIndex++;
191    if (AcpiGbl_NextHistoryIndex >= HISTORY_SIZE)
192    {
193        AcpiGbl_NextHistoryIndex = 0;
194    }
195
196    AcpiGbl_NextCmdNum++;
197    if (AcpiGbl_NumHistory < HISTORY_SIZE)
198    {
199        AcpiGbl_NumHistory++;
200    }
201}
202
203
204/*******************************************************************************
205 *
206 * FUNCTION:    AcpiDbDisplayHistory
207 *
208 * PARAMETERS:  None
209 *
210 * RETURN:      None
211 *
212 * DESCRIPTION: Display the contents of the history buffer
213 *
214 ******************************************************************************/
215
216void
217AcpiDbDisplayHistory (void)
218{
219    NATIVE_UINT             i;
220    UINT16                  HistoryIndex;
221
222
223    HistoryIndex = AcpiGbl_LoHistory;
224
225    /* Dump entire history buffer */
226
227    for (i = 0; i < AcpiGbl_NumHistory; i++)
228    {
229        AcpiOsPrintf ("%ld  %s\n", AcpiGbl_HistoryBuffer[HistoryIndex].CmdNum,
230                                   AcpiGbl_HistoryBuffer[HistoryIndex].Command);
231
232        HistoryIndex++;
233        if (HistoryIndex >= HISTORY_SIZE)
234        {
235            HistoryIndex = 0;
236        }
237    }
238}
239
240
241/*******************************************************************************
242 *
243 * FUNCTION:    AcpiDbGetFromHistory
244 *
245 * PARAMETERS:  CommandNumArg           - String containing the number of the
246 *                                        command to be retrieved
247 *
248 * RETURN:      None
249 *
250 * DESCRIPTION: Get a command from the history buffer
251 *
252 ******************************************************************************/
253
254NATIVE_CHAR *
255AcpiDbGetFromHistory (
256    NATIVE_CHAR             *CommandNumArg)
257{
258    NATIVE_UINT             i;
259    UINT16                  HistoryIndex;
260    UINT32                  CmdNum;
261
262
263    if (CommandNumArg == NULL)
264    {
265        CmdNum = AcpiGbl_NextCmdNum - 1;
266    }
267
268    else
269    {
270        CmdNum = ACPI_STRTOUL (CommandNumArg, NULL, 0);
271    }
272
273    /* Search history buffer */
274
275    HistoryIndex = AcpiGbl_LoHistory;
276    for (i = 0; i < AcpiGbl_NumHistory; i++)
277    {
278        if (AcpiGbl_HistoryBuffer[HistoryIndex].CmdNum == CmdNum)
279        {
280            /* Found the commnad, return it */
281
282            return (AcpiGbl_HistoryBuffer[HistoryIndex].Command);
283        }
284
285
286        HistoryIndex++;
287        if (HistoryIndex >= HISTORY_SIZE)
288        {
289            HistoryIndex = 0;
290        }
291    }
292
293    AcpiOsPrintf ("Invalid history number: %d\n", HistoryIndex);
294    return (NULL);
295}
296
297
298#endif /* ENABLE_DEBUGGER */
299
300