Remove some duplicate FreeBSD CVS IDs, move some IDs to better places.
[dragonfly.git] / sys / ddb / db_examine.c
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1/*
2 * Mach Operating System
3 * Copyright (c) 1991,1990 Carnegie Mellon University
4 * All Rights Reserved.
5 *
6 * Permission to use, copy, modify and distribute this software and its
7 * documentation is hereby granted, provided that both the copyright
8 * notice and this permission notice appear in all copies of the
9 * software, derivative works or modified versions, and any portions
10 * thereof, and that both notices appear in supporting documentation.
11 *
12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
13 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
15 *
16 * Carnegie Mellon requests users of this software to return to
17 *
18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
19 * School of Computer Science
20 * Carnegie Mellon University
21 * Pittsburgh PA 15213-3890
22 *
23 * any improvements or extensions that they make and grant Carnegie the
24 * rights to redistribute these changes.
25 *
26 * $FreeBSD: src/sys/ddb/db_examine.c,v 1.27 1999/08/28 00:41:07 peter Exp $
2729d8bd 27 * $DragonFly: src/sys/ddb/db_examine.c,v 1.5 2003/11/08 03:06:53 dillon Exp $
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28 */
29
30/*
31 * Author: David B. Golub, Carnegie Mellon University
32 * Date: 7/90
33 */
34
35#include <sys/param.h>
36#include <sys/systm.h>
37
38#include <ddb/ddb.h>
39
40#include <ddb/db_lex.h>
41#include <ddb/db_output.h>
42#include <ddb/db_command.h>
43#include <ddb/db_sym.h>
44#include <ddb/db_access.h>
45
46static char db_examine_format[TOK_STRING_SIZE] = "x";
47
43c0ece6
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48static void db_examine (db_addr_t, char *, int);
49static void db_search (db_addr_t, int, db_expr_t, db_expr_t, u_int);
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50
51/*
52 * Examine (print) data.
53 */
54/*ARGSUSED*/
55void
56db_examine_cmd(addr, have_addr, count, modif)
57 db_expr_t addr;
58 boolean_t have_addr;
59 db_expr_t count;
60 char * modif;
61{
62 if (modif[0] != '\0')
63 db_strcpy(db_examine_format, modif);
64
65 if (count == -1)
66 count = 1;
67
68 db_examine((db_addr_t) addr, db_examine_format, count);
69}
70
71static void
72db_examine(addr, fmt, count)
ad0290bd 73
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74 db_addr_t addr;
75 char * fmt; /* format string */
76 int count; /* repeat count */
77{
78 int c;
79 db_expr_t value;
80 int size;
81 int width;
82 char * fp;
83
84 while (--count >= 0) {
85 fp = fmt;
86 size = 4;
87 width = 16;
88 while ((c = *fp++) != 0) {
89 switch (c) {
90 case 'b':
91 size = 1;
92 width = 4;
93 break;
94 case 'h':
95 size = 2;
96 width = 8;
97 break;
98 case 'l':
99 size = 4;
100 width = 16;
101 break;
102 case 'g':
103 size = 8;
104 width = 32;
105 break;
106 case 'a': /* address */
107 /* always forces a new line */
108 if (db_print_position() != 0)
109 db_printf("\n");
110 db_prev = addr;
111 db_printsym(addr, DB_STGY_ANY);
112 db_printf(":\t");
113 break;
114 default:
115 if (db_print_position() == 0) {
116 /* Print the address. */
117 db_printsym(addr, DB_STGY_ANY);
118 db_printf(":\t");
119 db_prev = addr;
120 }
121
122 switch (c) {
123 case 'r': /* signed, current radix */
124 value = db_get_value(addr, size, TRUE);
125 addr += size;
126 db_printf("%+-*lr", width, (long)value);
127 break;
128 case 'x': /* unsigned hex */
129 value = db_get_value(addr, size, FALSE);
130 addr += size;
131 db_printf("%-*lx", width, (long)value);
132 break;
133 case 'z': /* signed hex */
134 value = db_get_value(addr, size, TRUE);
135 addr += size;
136 db_printf("%-*lz", width, (long)value);
137 break;
138 case 'd': /* signed decimal */
139 value = db_get_value(addr, size, TRUE);
140 addr += size;
141 db_printf("%-*ld", width, (long)value);
142 break;
143 case 'u': /* unsigned decimal */
144 value = db_get_value(addr, size, FALSE);
145 addr += size;
146 db_printf("%-*lu", width, (long)value);
147 break;
148 case 'o': /* unsigned octal */
149 value = db_get_value(addr, size, FALSE);
150 addr += size;
151 db_printf("%-*lo", width, (long)value);
152 break;
153 case 'c': /* character */
154 value = db_get_value(addr, 1, FALSE);
155 addr += 1;
156 if (value >= ' ' && value <= '~')
157 db_printf("%c", (int)value);
158 else
159 db_printf("\\%03o", (int)value);
160 break;
161 case 's': /* null-terminated string */
162 for (;;) {
163 value = db_get_value(addr, 1, FALSE);
164 addr += 1;
165 if (value == 0)
166 break;
167 if (value >= ' ' && value <= '~')
168 db_printf("%c", (int)value);
169 else
170 db_printf("\\%03o", (int)value);
171 }
172 break;
173 case 'i': /* instruction */
2729d8bd 174 addr = db_disasm(addr, FALSE, NULL);
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175 break;
176 case 'I': /* instruction, alternate form */
2729d8bd 177 addr = db_disasm(addr, TRUE, NULL);
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178 break;
179 default:
180 break;
181 }
182 if (db_print_position() != 0)
183 db_end_line();
184 break;
185 }
186 }
187 }
188 db_next = addr;
189}
190
191/*
192 * Print value.
193 */
194static char db_print_format = 'x';
195
196/*ARGSUSED*/
197void
198db_print_cmd(addr, have_addr, count, modif)
199 db_expr_t addr;
200 boolean_t have_addr;
201 db_expr_t count;
202 char * modif;
203{
204 db_expr_t value;
205
206 if (modif[0] != '\0')
207 db_print_format = modif[0];
208
209 switch (db_print_format) {
210 case 'a':
211 db_printsym((db_addr_t)addr, DB_STGY_ANY);
212 break;
213 case 'r':
214 db_printf("%+11lr", (long)addr);
215 break;
216 case 'x':
217 db_printf("%8lx", (unsigned long)addr);
218 break;
219 case 'z':
220 db_printf("%8lz", (long)addr);
221 break;
222 case 'd':
223 db_printf("%11ld", (long)addr);
224 break;
225 case 'u':
226 db_printf("%11lu", (unsigned long)addr);
227 break;
228 case 'o':
229 db_printf("%16lo", (unsigned long)addr);
230 break;
231 case 'c':
232 value = addr & 0xFF;
233 if (value >= ' ' && value <= '~')
234 db_printf("%c", (int)value);
235 else
236 db_printf("\\%03o", (int)value);
237 break;
238 }
239 db_printf("\n");
240}
241
242void
2729d8bd 243db_print_loc_and_inst(db_addr_t loc, db_regs_t *regs)
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244{
245 db_printsym(loc, DB_STGY_PROC);
246 db_printf(":\t");
2729d8bd 247 (void) db_disasm(loc, TRUE, regs);
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248}
249
250/*
251 * Search for a value in memory.
252 * Syntax: search [/bhl] addr value [mask] [,count]
253 */
254void
255db_search_cmd(dummy1, dummy2, dummy3, dummy4)
256 db_expr_t dummy1;
257 boolean_t dummy2;
258 db_expr_t dummy3;
259 char * dummy4;
260{
261 int t;
262 db_addr_t addr;
263 int size;
264 db_expr_t value;
265 db_expr_t mask;
266 db_expr_t count;
267
268 t = db_read_token();
269 if (t == tSLASH) {
270 t = db_read_token();
271 if (t != tIDENT) {
272 bad_modifier:
273 db_printf("Bad modifier\n");
274 db_flush_lex();
275 return;
276 }
277
278 if (!strcmp(db_tok_string, "b"))
279 size = 1;
280 else if (!strcmp(db_tok_string, "h"))
281 size = 2;
282 else if (!strcmp(db_tok_string, "l"))
283 size = 4;
284 else
285 goto bad_modifier;
286 } else {
287 db_unread_token(t);
288 size = 4;
289 }
290
291 if (!db_expression((db_expr_t *)&addr)) {
292 db_printf("Address missing\n");
293 db_flush_lex();
294 return;
295 }
296
297 if (!db_expression(&value)) {
298 db_printf("Value missing\n");
299 db_flush_lex();
300 return;
301 }
302
303 if (!db_expression(&mask))
304 mask = 0xffffffffUL;
305
306 t = db_read_token();
307 if (t == tCOMMA) {
308 if (!db_expression(&count)) {
309 db_printf("Count missing\n");
310 db_flush_lex();
311 return;
312 }
313 } else {
314 db_unread_token(t);
315 count = -1; /* effectively forever */
316 }
317 db_skip_to_eol();
318
319 db_search(addr, size, value, mask, count);
320}
321
322static void
323db_search(addr, size, value, mask, count)
ad0290bd 324
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325 db_addr_t addr;
326 int size;
327 db_expr_t value;
328 db_expr_t mask;
329 unsigned int count;
330{
331 while (count-- != 0) {
332 db_prev = addr;
333 if ((db_get_value(addr, size, FALSE) & mask) == value)
334 break;
335 addr += size;
336 }
337 db_next = addr;
338}