Commit | Line | Data |
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6a02d201 MS |
1 | /* Tracing functionality for remote targets in custom GDB protocol |
2 | Copyright 1997 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "symtab.h" | |
22 | #include "frame.h" | |
23 | #include "tracepoint.h" | |
24 | #include "gdbtypes.h" | |
25 | #include "expression.h" | |
26 | #include "gdbcmd.h" | |
27 | #include "value.h" | |
28 | #include "target.h" | |
29 | #include "language.h" | |
6156728b | 30 | #include "gdb_string.h" |
6a02d201 MS |
31 | |
32 | /* readline include files */ | |
33 | #include "readline.h" | |
34 | #include "history.h" | |
35 | ||
36 | /* readline defines this. */ | |
37 | #undef savestring | |
38 | ||
39 | #ifdef HAVE_UNISTD_H | |
40 | #include <unistd.h> | |
41 | #endif | |
42 | ||
43 | extern int info_verbose; | |
6c3908db KS |
44 | extern void (*readline_begin_hook) PARAMS ((char *, ...)); |
45 | extern char * (*readline_hook) PARAMS ((char *)); | |
46 | extern void (*readline_end_hook) PARAMS ((void)); | |
6a02d201 MS |
47 | |
48 | /* If this definition isn't overridden by the header files, assume | |
49 | that isatty and fileno exist on this system. */ | |
50 | #ifndef ISATTY | |
51 | #define ISATTY(FP) (isatty (fileno (FP))) | |
52 | #endif | |
53 | ||
8b9c29f5 MS |
54 | /* |
55 | Tracepoint.c: | |
56 | ||
57 | This module defines the following debugger commands: | |
58 | trace : set a tracepoint on a function, line, or address. | |
59 | info trace : list all debugger-defined tracepoints. | |
60 | delete trace : delete one or more tracepoints. | |
61 | enable trace : enable one or more tracepoints. | |
62 | disable trace : disable one or more tracepoints. | |
63 | actions : specify actions to be taken at a tracepoint. | |
64 | passcount : specify a pass count for a tracepoint. | |
65 | tstart : start a trace experiment. | |
66 | tstop : stop a trace experiment. | |
67 | tstatus : query the status of a trace experiment. | |
68 | tfind : find a trace frame in the trace buffer. | |
69 | tdump : print everything collected at the current tracepoint. | |
70 | save-tracepoints : write tracepoint setup into a file. | |
71 | ||
72 | This module defines the following user-visible debugger variables: | |
73 | $trace_frame : sequence number of trace frame currently being debugged. | |
74 | $trace_line : source line of trace frame currently being debugged. | |
75 | $trace_file : source file of trace frame currently being debugged. | |
76 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
77 | */ | |
78 | ||
79 | ||
80 | /* ======= Important global variables: ======= */ | |
81 | ||
6a02d201 MS |
82 | /* Chain of all tracepoints defined. */ |
83 | struct tracepoint *tracepoint_chain; | |
84 | ||
85 | /* Number of last tracepoint made. */ | |
86 | static int tracepoint_count; | |
87 | ||
88 | /* Number of last traceframe collected. */ | |
89 | static int traceframe_number; | |
90 | ||
6156728b MS |
91 | /* Tracepoint for last traceframe collected. */ |
92 | static int tracepoint_number; | |
93 | ||
94 | /* Symbol for function for last traceframe collected */ | |
95 | static struct symbol *traceframe_fun; | |
96 | ||
97 | /* Symtab and line for last traceframe collected */ | |
98 | static struct symtab_and_line traceframe_sal; | |
99 | ||
8b9c29f5 MS |
100 | /* Tracing command lists */ |
101 | static struct cmd_list_element *tfindlist; | |
8b9c29f5 MS |
102 | |
103 | /* ======= Important command functions: ======= */ | |
104 | static void trace_command PARAMS ((char *, int)); | |
105 | static void tracepoints_info PARAMS ((char *, int)); | |
106 | static void delete_trace_command PARAMS ((char *, int)); | |
107 | static void enable_trace_command PARAMS ((char *, int)); | |
108 | static void disable_trace_command PARAMS ((char *, int)); | |
109 | static void trace_pass_command PARAMS ((char *, int)); | |
110 | static void trace_actions_command PARAMS ((char *, int)); | |
111 | static void trace_start_command PARAMS ((char *, int)); | |
112 | static void trace_stop_command PARAMS ((char *, int)); | |
113 | static void trace_status_command PARAMS ((char *, int)); | |
114 | static void trace_find_command PARAMS ((char *, int)); | |
115 | static void trace_find_pc_command PARAMS ((char *, int)); | |
116 | static void trace_find_tracepoint_command PARAMS ((char *, int)); | |
117 | static void trace_find_line_command PARAMS ((char *, int)); | |
118 | static void trace_find_range_command PARAMS ((char *, int)); | |
119 | static void trace_find_outside_command PARAMS ((char *, int)); | |
120 | static void tracepoint_save_command PARAMS ((char *, int)); | |
121 | static void trace_dump_command PARAMS ((char *, int)); | |
122 | ||
123 | ||
6a02d201 MS |
124 | /* Utility: returns true if "target remote" */ |
125 | static int | |
126 | target_is_remote () | |
127 | { | |
128 | if (current_target.to_shortname && | |
129 | strcmp (current_target.to_shortname, "remote") == 0) | |
130 | return 1; | |
131 | else | |
132 | return 0; | |
133 | } | |
134 | ||
135 | /* Utility: generate error from an incoming stub packet. */ | |
136 | static void | |
137 | trace_error (buf) | |
138 | char *buf; | |
139 | { | |
140 | if (*buf++ != 'E') | |
141 | return; /* not an error msg */ | |
142 | switch (*buf) | |
143 | { | |
144 | case '1': /* malformed packet error */ | |
145 | if (*++buf == '0') /* general case: */ | |
6156728b | 146 | error ("tracepoint.c: error in outgoing packet."); |
6a02d201 | 147 | else |
6156728b MS |
148 | error ("tracepoint.c: error in outgoing packet at field #%d.", |
149 | strtol (buf, NULL, 16)); | |
6a02d201 | 150 | case '2': |
6156728b | 151 | error ("trace API error 0x%s.", ++buf); |
6a02d201 MS |
152 | default: |
153 | error ("Target returns error code '%s'.", buf); | |
154 | } | |
155 | } | |
156 | ||
6a02d201 | 157 | /* Utility: wait for reply from stub, while accepting "O" packets */ |
6156728b | 158 | static char * |
6a02d201 MS |
159 | remote_get_noisy_reply (buf) |
160 | char *buf; | |
161 | { | |
162 | do /* loop on reply from remote stub */ | |
163 | { | |
164 | getpkt (buf, 0); | |
165 | if (buf[0] == 0) | |
166 | error ("Target does not support this command."); | |
167 | else if (buf[0] == 'E') | |
168 | trace_error (buf); | |
6a02d201 MS |
169 | else if (buf[0] == 'O' && |
170 | buf[1] != 'K') | |
171 | remote_console_output (buf + 1); /* 'O' message from stub */ | |
172 | else | |
6156728b | 173 | return buf; /* here's the actual reply */ |
6a02d201 MS |
174 | } while (1); |
175 | } | |
176 | ||
177 | /* Set tracepoint count to NUM. */ | |
178 | static void | |
179 | set_tracepoint_count (num) | |
180 | int num; | |
181 | { | |
182 | tracepoint_count = num; | |
183 | set_internalvar (lookup_internalvar ("tpnum"), | |
184 | value_from_longest (builtin_type_int, (LONGEST) num)); | |
185 | } | |
186 | ||
187 | /* Set traceframe number to NUM. */ | |
188 | static void | |
189 | set_traceframe_num (num) | |
190 | int num; | |
191 | { | |
192 | traceframe_number = num; | |
193 | set_internalvar (lookup_internalvar ("trace_frame"), | |
194 | value_from_longest (builtin_type_int, (LONGEST) num)); | |
195 | } | |
196 | ||
6156728b MS |
197 | /* Set tracepoint number to NUM. */ |
198 | static void | |
199 | set_tracepoint_num (num) | |
200 | int num; | |
201 | { | |
202 | tracepoint_number = num; | |
203 | set_internalvar (lookup_internalvar ("tracepoint"), | |
204 | value_from_longest (builtin_type_int, (LONGEST) num)); | |
205 | } | |
206 | ||
207 | /* Set externally visible debug variables for querying/printing | |
208 | the traceframe context (line, function, file) */ | |
209 | ||
210 | static void | |
211 | set_traceframe_context (trace_pc) | |
212 | CORE_ADDR trace_pc; | |
213 | { | |
214 | static struct type *func_string, *file_string; | |
215 | static struct type *func_range, *file_range; | |
216 | static value_ptr func_val, file_val; | |
217 | static struct type *charstar; | |
218 | int len; | |
219 | ||
220 | if (charstar == (struct type *) NULL) | |
221 | charstar = lookup_pointer_type (builtin_type_char); | |
222 | ||
223 | if (trace_pc == -1) /* cease debugging any trace buffers */ | |
224 | { | |
225 | traceframe_fun = 0; | |
226 | traceframe_sal.pc = traceframe_sal.line = 0; | |
227 | traceframe_sal.symtab = NULL; | |
228 | set_internalvar (lookup_internalvar ("trace_func"), | |
229 | value_from_longest (charstar, (LONGEST) 0)); | |
230 | set_internalvar (lookup_internalvar ("trace_file"), | |
231 | value_from_longest (charstar, (LONGEST) 0)); | |
232 | set_internalvar (lookup_internalvar ("trace_line"), | |
233 | value_from_longest (builtin_type_int, (LONGEST) -1)); | |
234 | return; | |
235 | } | |
236 | ||
237 | /* save as globals for internal use */ | |
238 | traceframe_sal = find_pc_line (trace_pc, 0); | |
239 | traceframe_fun = find_pc_function (trace_pc); | |
240 | ||
241 | /* save linenumber as "$trace_line", a debugger variable visible to users */ | |
242 | set_internalvar (lookup_internalvar ("trace_line"), | |
243 | value_from_longest (builtin_type_int, | |
244 | (LONGEST) traceframe_sal.line)); | |
245 | ||
246 | /* save func name as "$trace_func", a debugger variable visible to users */ | |
247 | if (traceframe_fun == NULL || | |
248 | SYMBOL_NAME (traceframe_fun) == NULL) | |
249 | set_internalvar (lookup_internalvar ("trace_func"), | |
250 | value_from_longest (charstar, (LONGEST) 0)); | |
251 | else | |
252 | { | |
253 | len = strlen (SYMBOL_NAME (traceframe_fun)); | |
254 | func_range = create_range_type (func_range, | |
255 | builtin_type_int, 0, len - 1); | |
256 | func_string = create_array_type (func_string, | |
257 | builtin_type_char, func_range); | |
258 | func_val = allocate_value (func_string); | |
259 | VALUE_TYPE (func_val) = func_string; | |
260 | memcpy (VALUE_CONTENTS_RAW (func_val), | |
261 | SYMBOL_NAME (traceframe_fun), | |
262 | len); | |
263 | func_val->modifiable = 0; | |
264 | set_internalvar (lookup_internalvar ("trace_func"), func_val); | |
265 | } | |
266 | ||
267 | /* save file name as "$trace_file", a debugger variable visible to users */ | |
268 | if (traceframe_sal.symtab == NULL || | |
269 | traceframe_sal.symtab->filename == NULL) | |
270 | set_internalvar (lookup_internalvar ("trace_file"), | |
271 | value_from_longest (charstar, (LONGEST) 0)); | |
272 | else | |
273 | { | |
274 | len = strlen (traceframe_sal.symtab->filename); | |
275 | file_range = create_range_type (file_range, | |
276 | builtin_type_int, 0, len - 1); | |
277 | file_string = create_array_type (file_string, | |
278 | builtin_type_char, file_range); | |
279 | file_val = allocate_value (file_string); | |
280 | VALUE_TYPE (file_val) = file_string; | |
281 | memcpy (VALUE_CONTENTS_RAW (file_val), | |
282 | traceframe_sal.symtab->filename, | |
283 | len); | |
284 | file_val->modifiable = 0; | |
285 | set_internalvar (lookup_internalvar ("trace_file"), file_val); | |
286 | } | |
287 | } | |
288 | ||
6a02d201 MS |
289 | /* Low level routine to set a tracepoint. |
290 | Returns the tracepoint object so caller can set other things. | |
291 | Does not set the tracepoint number! | |
292 | Does not print anything. | |
293 | ||
294 | ==> This routine should not be called if there is a chance of later | |
295 | error(); otherwise it leaves a bogus tracepoint on the chain. Validate | |
296 | your arguments BEFORE calling this routine! */ | |
297 | ||
298 | static struct tracepoint * | |
299 | set_raw_tracepoint (sal) | |
300 | struct symtab_and_line sal; | |
301 | { | |
302 | register struct tracepoint *t, *tc; | |
303 | struct cleanup *old_chain; | |
304 | ||
305 | t = (struct tracepoint *) xmalloc (sizeof (struct tracepoint)); | |
306 | old_chain = make_cleanup (free, t); | |
307 | memset (t, 0, sizeof (*t)); | |
308 | t->address = sal.pc; | |
309 | if (sal.symtab == NULL) | |
310 | t->source_file = NULL; | |
311 | else | |
57c0b026 | 312 | { |
018d76dd KS |
313 | char *p; |
314 | ||
57c0b026 | 315 | t->source_file = (char *) xmalloc (strlen (sal.symtab->filename) + |
018d76dd | 316 | strlen (sal.symtab->dirname) + 2); |
57c0b026 MS |
317 | |
318 | strcpy (t->source_file, sal.symtab->dirname); | |
018d76dd | 319 | p = t->source_file; |
6c3908db KS |
320 | while (*p) |
321 | p++; | |
322 | if (*(--p) != '/') /* Will this work on Windows? */ | |
018d76dd | 323 | strcat (t->source_file, "/"); |
57c0b026 MS |
324 | strcat (t->source_file, sal.symtab->filename); |
325 | } | |
326 | ||
6a02d201 MS |
327 | t->language = current_language->la_language; |
328 | t->input_radix = input_radix; | |
329 | t->line_number = sal.line; | |
330 | t->enabled = enabled; | |
331 | t->next = 0; | |
332 | t->step_count = 0; | |
333 | t->pass_count = 0; | |
334 | ||
335 | /* Add this tracepoint to the end of the chain | |
336 | so that a list of tracepoints will come out in order | |
337 | of increasing numbers. */ | |
338 | ||
339 | tc = tracepoint_chain; | |
340 | if (tc == 0) | |
341 | tracepoint_chain = t; | |
342 | else | |
343 | { | |
344 | while (tc->next) | |
345 | tc = tc->next; | |
346 | tc->next = t; | |
347 | } | |
348 | discard_cleanups (old_chain); | |
349 | return t; | |
350 | } | |
351 | ||
8b9c29f5 | 352 | /* Set a tracepoint according to ARG (function, linenum or *address) */ |
6a02d201 MS |
353 | static void |
354 | trace_command (arg, from_tty) | |
355 | char *arg; | |
356 | int from_tty; | |
357 | { | |
358 | char **canonical = (char **)NULL; | |
359 | struct symtabs_and_lines sals; | |
360 | struct symtab_and_line sal; | |
361 | struct tracepoint *t; | |
362 | char *addr_start = 0, *addr_end = 0, *cond_start = 0, *cond_end = 0; | |
363 | int i; | |
364 | ||
365 | if (!arg || !*arg) | |
366 | error ("trace command requires an argument"); | |
367 | ||
368 | if (from_tty && info_verbose) | |
369 | printf_filtered ("TRACE %s\n", arg); | |
370 | ||
371 | if (arg[0] == '/') | |
372 | { | |
373 | return; | |
374 | } | |
375 | ||
376 | addr_start = arg; | |
377 | sals = decode_line_1 (&arg, 1, (struct symtab *)NULL, 0, &canonical); | |
378 | addr_end = arg; | |
379 | if (! sals.nelts) | |
380 | return; /* ??? Presumably decode_line_1 has already warned? */ | |
381 | ||
382 | /* Resolve all line numbers to PC's */ | |
383 | for (i = 0; i < sals.nelts; i++) | |
384 | resolve_sal_pc (&sals.sals[i]); | |
385 | ||
386 | /* Now set all the tracepoints. */ | |
387 | for (i = 0; i < sals.nelts; i++) | |
388 | { | |
389 | sal = sals.sals[i]; | |
390 | ||
391 | t = set_raw_tracepoint (sal); | |
392 | set_tracepoint_count (tracepoint_count + 1); | |
393 | t->number = tracepoint_count; | |
394 | ||
395 | /* If a canonical line spec is needed use that instead of the | |
6156728b | 396 | command string. */ |
6a02d201 | 397 | if (canonical != (char **)NULL && canonical[i] != NULL) |
6156728b | 398 | t->addr_string = canonical[i]; |
6a02d201 | 399 | else if (addr_start) |
6156728b | 400 | t->addr_string = savestring (addr_start, addr_end - addr_start); |
6a02d201 | 401 | if (cond_start) |
6156728b | 402 | t->cond_string = savestring (cond_start, cond_end - cond_start); |
57c0b026 MS |
403 | |
404 | /* Let the UI know of any additions */ | |
405 | if (create_tracepoint_hook) | |
6156728b | 406 | create_tracepoint_hook (t); |
6a02d201 MS |
407 | } |
408 | ||
409 | if (sals.nelts > 1) | |
410 | { | |
411 | printf_filtered ("Multiple tracepoints were set.\n"); | |
8b9c29f5 | 412 | printf_filtered ("Use 'delete trace' to delete unwanted tracepoints.\n"); |
6a02d201 MS |
413 | } |
414 | } | |
415 | ||
8b9c29f5 MS |
416 | /* Print information on tracepoint number TPNUM_EXP, or all if omitted. */ |
417 | ||
6a02d201 MS |
418 | static void |
419 | tracepoints_info (tpnum_exp, from_tty) | |
420 | char *tpnum_exp; | |
421 | int from_tty; | |
422 | { | |
423 | struct tracepoint *t; | |
424 | struct action_line *action; | |
425 | int found_a_tracepoint = 0; | |
426 | char wrap_indent[80]; | |
427 | struct symbol *sym; | |
428 | int tpnum = -1; | |
429 | #if 0 | |
430 | char *i1 = "\t", *i2 = "\t "; | |
431 | char *indent, *actionline;; | |
432 | #endif | |
433 | ||
434 | if (tpnum_exp) | |
435 | tpnum = parse_and_eval_address (tpnum_exp); | |
436 | ||
437 | ALL_TRACEPOINTS (t) | |
438 | if (tpnum == -1 || tpnum == t->number) | |
439 | { | |
440 | extern int addressprint; /* print machine addresses? */ | |
441 | ||
442 | if (!found_a_tracepoint++) | |
6156728b MS |
443 | { |
444 | printf_filtered ("Num Enb "); | |
445 | if (addressprint) | |
446 | printf_filtered ("Address "); | |
447 | printf_filtered ("PassC StepC What\n"); | |
448 | } | |
6a02d201 MS |
449 | strcpy (wrap_indent, " "); |
450 | if (addressprint) | |
451 | strcat (wrap_indent, " "); | |
452 | ||
6156728b MS |
453 | printf_filtered ("%-3d %-3s ", t->number, |
454 | t->enabled == enabled ? "y" : "n"); | |
6a02d201 | 455 | if (addressprint) |
6156728b MS |
456 | printf_filtered ("%s ", |
457 | local_hex_string_custom ((unsigned long) t->address, | |
458 | "08l")); | |
459 | printf_filtered ("%-5d %-5d ", t->pass_count, t->step_count); | |
460 | ||
6a02d201 MS |
461 | if (t->source_file) |
462 | { | |
463 | sym = find_pc_function (t->address); | |
464 | if (sym) | |
465 | { | |
466 | fputs_filtered ("in ", gdb_stdout); | |
467 | fputs_filtered (SYMBOL_SOURCE_NAME (sym), gdb_stdout); | |
468 | wrap_here (wrap_indent); | |
469 | fputs_filtered (" at ", gdb_stdout); | |
470 | } | |
471 | fputs_filtered (t->source_file, gdb_stdout); | |
472 | printf_filtered (":%d", t->line_number); | |
473 | } | |
474 | else | |
475 | print_address_symbolic (t->address, gdb_stdout, demangle, " "); | |
476 | ||
6a02d201 MS |
477 | printf_filtered ("\n"); |
478 | if (t->actions) | |
479 | { | |
480 | printf_filtered (" Actions for tracepoint %d: \n", t->number); | |
481 | /* indent = i1; */ | |
482 | for (action = t->actions; action; action = action->next) | |
483 | { | |
484 | #if 0 | |
485 | actionline = action->action; | |
486 | while (isspace(*actionline)) | |
487 | actionline++; | |
488 | ||
489 | printf_filtered ("%s%s\n", indent, actionline); | |
490 | if (0 == strncasecmp (actionline, "while-stepping", 14)) | |
491 | indent = i2; | |
492 | else if (0 == strncasecmp (actionline, "end", 3)) | |
493 | indent = i1; | |
494 | #else | |
495 | printf_filtered ("\t%s\n", action->action); | |
496 | #endif | |
497 | } | |
498 | } | |
499 | } | |
500 | if (!found_a_tracepoint) | |
501 | { | |
502 | if (tpnum == -1) | |
503 | printf_filtered ("No tracepoints.\n"); | |
504 | else | |
505 | printf_filtered ("No tracepoint number %d.\n", tpnum); | |
506 | } | |
507 | } | |
508 | ||
509 | /* Optimization: the code to parse an enable, disable, or delete TP command | |
510 | is virtually identical except for whether it performs an enable, disable, | |
511 | or delete. Therefore I've combined them into one function with an opcode. | |
512 | */ | |
513 | enum tracepoint_opcode | |
514 | { | |
515 | enable, | |
516 | disable, | |
517 | delete | |
518 | }; | |
519 | ||
520 | /* This function implements enable, disable and delete. */ | |
521 | static void | |
522 | tracepoint_operation (t, from_tty, opcode) | |
523 | struct tracepoint *t; | |
524 | int from_tty; | |
525 | enum tracepoint_opcode opcode; | |
526 | { | |
527 | struct tracepoint *t2; | |
528 | struct action_line *action, *next; | |
529 | ||
530 | switch (opcode) { | |
531 | case enable: | |
532 | t->enabled = enabled; | |
533 | break; | |
534 | case disable: | |
535 | t->enabled = disabled; | |
536 | break; | |
537 | case delete: | |
538 | if (tracepoint_chain == t) | |
539 | tracepoint_chain = t->next; | |
540 | ||
541 | ALL_TRACEPOINTS (t2) | |
542 | if (t2->next == t) | |
543 | { | |
544 | t2->next = t->next; | |
545 | break; | |
546 | } | |
57c0b026 MS |
547 | |
548 | /* Let the UI know of any deletions */ | |
549 | if (delete_tracepoint_hook) | |
550 | delete_tracepoint_hook (t); | |
551 | ||
6a02d201 MS |
552 | if (t->cond_string) |
553 | free (t->cond_string); | |
554 | if (t->addr_string) | |
555 | free (t->addr_string); | |
556 | if (t->source_file) | |
557 | free (t->source_file); | |
558 | for (action = t->actions; action; action = next) | |
559 | { | |
560 | next = action->next; | |
561 | if (action->action) | |
562 | free (action->action); | |
563 | free (action); | |
564 | } | |
565 | free (t); | |
566 | break; | |
567 | } | |
568 | } | |
569 | ||
570 | /* Utility: parse a tracepoint number and look it up in the list. */ | |
57c0b026 | 571 | struct tracepoint * |
6a02d201 MS |
572 | get_tracepoint_by_number (arg) |
573 | char **arg; | |
574 | { | |
575 | struct tracepoint *t; | |
6156728b | 576 | char *end, *copy; |
6a02d201 MS |
577 | value_ptr val; |
578 | int tpnum; | |
579 | ||
580 | if (arg == 0) | |
581 | error ("Bad tracepoint argument"); | |
582 | ||
583 | if (*arg == 0 || **arg == 0) /* empty arg means refer to last tp */ | |
584 | tpnum = tracepoint_count; | |
585 | else if (**arg == '$') /* handle convenience variable */ | |
586 | { | |
6156728b MS |
587 | /* Make a copy of the name, so we can null-terminate it |
588 | to pass to lookup_internalvar(). */ | |
589 | end = *arg + 1; | |
590 | while (isalnum(*end) || *end == '_') | |
591 | end++; | |
592 | copy = (char *) alloca (end - *arg); | |
593 | strncpy (copy, *arg + 1, (end - *arg - 1)); | |
594 | copy[end - *arg - 1] = '\0'; | |
595 | *arg = end; | |
596 | ||
597 | val = value_of_internalvar (lookup_internalvar (copy)); | |
6a02d201 MS |
598 | if (TYPE_CODE( VALUE_TYPE (val)) != TYPE_CODE_INT) |
599 | error ("Convenience variable must have integral type."); | |
600 | tpnum = (int) value_as_long (val); | |
601 | } | |
602 | else /* handle tracepoint number */ | |
603 | { | |
604 | tpnum = strtol (*arg, arg, 10); | |
605 | } | |
606 | ALL_TRACEPOINTS (t) | |
607 | if (t->number == tpnum) | |
608 | { | |
609 | return t; | |
610 | } | |
611 | warning ("No tracepoint number %d.\n", tpnum); | |
612 | return NULL; | |
613 | } | |
614 | ||
615 | /* Utility: parse a list of tracepoint numbers, and call a func for each. */ | |
616 | static void | |
617 | map_args_over_tracepoints (args, from_tty, opcode) | |
618 | char *args; | |
619 | int from_tty; | |
620 | enum tracepoint_opcode opcode; | |
621 | { | |
622 | struct tracepoint *t; | |
623 | int tpnum; | |
624 | char *cp; | |
625 | ||
626 | if (args == 0 || *args == 0) /* do them all */ | |
627 | ALL_TRACEPOINTS (t) | |
628 | tracepoint_operation (t, from_tty, opcode); | |
629 | else | |
630 | while (*args) | |
631 | { | |
632 | if (t = get_tracepoint_by_number (&args)) | |
633 | tracepoint_operation (t, from_tty, opcode); | |
634 | while (*args == ' ' || *args == '\t') | |
635 | args++; | |
636 | } | |
637 | } | |
638 | ||
8b9c29f5 | 639 | /* The 'enable trace' command enables tracepoints. Not supported by all targets. */ |
6a02d201 MS |
640 | static void |
641 | enable_trace_command (args, from_tty) | |
642 | char *args; | |
643 | int from_tty; | |
644 | { | |
645 | dont_repeat (); | |
646 | map_args_over_tracepoints (args, from_tty, enable); | |
647 | } | |
648 | ||
8b9c29f5 | 649 | /* The 'disable trace' command enables tracepoints. Not supported by all targets. */ |
6a02d201 MS |
650 | static void |
651 | disable_trace_command (args, from_tty) | |
652 | char *args; | |
653 | int from_tty; | |
654 | { | |
655 | dont_repeat (); | |
656 | map_args_over_tracepoints (args, from_tty, disable); | |
657 | } | |
658 | ||
8b9c29f5 | 659 | /* Remove a tracepoint (or all if no argument) */ |
6a02d201 MS |
660 | static void |
661 | delete_trace_command (args, from_tty) | |
662 | char *args; | |
663 | int from_tty; | |
664 | { | |
665 | dont_repeat (); | |
666 | if (!args || !*args) | |
667 | if (!query ("Delete all tracepoints? ")) | |
668 | return; | |
669 | ||
670 | map_args_over_tracepoints (args, from_tty, delete); | |
671 | } | |
672 | ||
8b9c29f5 MS |
673 | /* Set passcount for tracepoint. |
674 | ||
675 | First command argument is passcount, second is tracepoint number. | |
676 | If tracepoint number omitted, apply to most recently defined. | |
677 | Also accepts special argument "all". */ | |
678 | ||
6a02d201 MS |
679 | static void |
680 | trace_pass_command (args, from_tty) | |
681 | char *args; | |
682 | int from_tty; | |
683 | { | |
684 | struct tracepoint *t1 = (struct tracepoint *) -1, *t2; | |
685 | unsigned long count; | |
686 | ||
687 | if (args == 0 || *args == 0) | |
688 | error ("PASS command requires an argument (count + optional TP num)"); | |
689 | ||
690 | count = strtoul (args, &args, 10); /* count comes first, then TP num */ | |
691 | ||
692 | while (*args && isspace (*args)) | |
693 | args++; | |
694 | ||
695 | if (*args && strncasecmp (args, "all", 3) == 0) | |
696 | args += 3; /* skip special argument "all" */ | |
697 | else | |
698 | t1 = get_tracepoint_by_number (&args); | |
699 | ||
700 | if (t1 == NULL) | |
701 | return; /* error, bad tracepoint number */ | |
702 | ||
703 | ALL_TRACEPOINTS (t2) | |
704 | if (t1 == (struct tracepoint *) -1 || t1 == t2) | |
705 | { | |
706 | t2->pass_count = count; | |
707 | if (from_tty) | |
708 | printf_filtered ("Setting tracepoint %d's passcount to %d\n", | |
709 | t2->number, count); | |
710 | } | |
711 | } | |
712 | ||
8b9c29f5 MS |
713 | /* ACTIONS functions: */ |
714 | ||
715 | /* Prototypes for action-parsing utility commands */ | |
716 | static void read_actions PARAMS((struct tracepoint *)); | |
717 | static void free_actions PARAMS((struct tracepoint *)); | |
8b9c29f5 MS |
718 | static char *parse_and_eval_memrange PARAMS ((char *, |
719 | CORE_ADDR, | |
720 | long *, | |
721 | bfd_signed_vma *, | |
722 | long *)); | |
723 | ||
724 | /* The three functions: | |
728c7f37 MS |
725 | collect_pseudocommand, |
726 | while_stepping_pseudocommand, and | |
727 | end_actions_pseudocommand | |
8b9c29f5 MS |
728 | are placeholders for "commands" that are actually ONLY to be used |
729 | within a tracepoint action list. If the actual function is ever called, | |
730 | it means that somebody issued the "command" at the top level, | |
731 | which is always an error. */ | |
6a02d201 | 732 | |
6156728b | 733 | static void |
728c7f37 | 734 | end_actions_pseudocommand (args, from_tty) |
6156728b MS |
735 | { |
736 | error ("This command cannot be used at the top level."); | |
737 | } | |
738 | ||
739 | static void | |
728c7f37 | 740 | while_stepping_pseudocommand (args, from_tty) |
6156728b MS |
741 | { |
742 | error ("This command can only be used in a tracepoint actions list."); | |
743 | } | |
744 | ||
745 | static void | |
728c7f37 | 746 | collect_pseudocommand (args, from_tty) |
6156728b MS |
747 | { |
748 | error ("This command can only be used in a tracepoint actions list."); | |
749 | } | |
750 | ||
8b9c29f5 | 751 | /* Enter a list of actions for a tracepoint. */ |
6a02d201 MS |
752 | static void |
753 | trace_actions_command (args, from_tty) | |
754 | char *args; | |
755 | int from_tty; | |
756 | { | |
757 | struct tracepoint *t; | |
758 | char *actions; | |
6c3908db KS |
759 | char tmpbuf[128]; |
760 | char *end_msg = "End with a line saying just \"end\"."; | |
6a02d201 MS |
761 | |
762 | if (t = get_tracepoint_by_number (&args)) | |
763 | { | |
6c3908db KS |
764 | sprintf (tmpbuf, "Enter actions for tracepoint %d, one per line.", |
765 | t->number); | |
766 | ||
767 | if (readline_begin_hook) | |
768 | (*readline_begin_hook) ("%s %s\n", tmpbuf, end_msg); | |
769 | else if (from_tty && input_from_terminal_p ()) | |
770 | printf_filtered ("%s\n%s\n", tmpbuf, end_msg); | |
771 | ||
6a02d201 MS |
772 | free_actions (t); |
773 | read_actions (t); | |
6c3908db KS |
774 | |
775 | if (readline_end_hook) | |
776 | (*readline_end_hook) (); | |
777 | ||
6a02d201 MS |
778 | /* tracepoints_changed () */ |
779 | } | |
780 | /* else error, just return; */ | |
781 | } | |
782 | ||
783 | enum actionline_type | |
784 | { | |
785 | BADLINE = -1, | |
786 | GENERIC = 0, | |
787 | END = 1, | |
788 | STEPPING = 2, | |
789 | }; | |
790 | ||
2b146fa0 MS |
791 | static enum actionline_type validate_actionline PARAMS((char *, |
792 | struct tracepoint *)); | |
793 | ||
8b9c29f5 | 794 | /* worker function */ |
6a02d201 MS |
795 | static void |
796 | read_actions (t) | |
797 | struct tracepoint *t; | |
798 | { | |
799 | char *line; | |
800 | char *prompt1 = "> ", *prompt2 = " > "; | |
801 | char *prompt = prompt1; | |
802 | enum actionline_type linetype; | |
803 | extern FILE *instream; | |
804 | struct action_line *next = NULL, *temp; | |
805 | struct cleanup *old_chain; | |
806 | ||
807 | /* Control-C quits instantly if typed while in this loop | |
808 | since it should not wait until the user types a newline. */ | |
809 | immediate_quit++; | |
810 | #ifdef STOP_SIGNAL | |
811 | if (job_control) | |
812 | signal (STOP_SIGNAL, stop_sig); | |
813 | #endif | |
814 | old_chain = make_cleanup (free_actions, (void *) t); | |
815 | while (1) | |
816 | { | |
817 | /* Make sure that all output has been output. Some machines may let | |
818 | you get away with leaving out some of the gdb_flush, but not all. */ | |
819 | wrap_here (""); | |
820 | gdb_flush (gdb_stdout); | |
821 | gdb_flush (gdb_stderr); | |
6c3908db KS |
822 | |
823 | if (readline_hook && instream == NULL) | |
824 | line = (*readline_hook) (prompt); | |
825 | else if (instream == stdin && ISATTY (instream)) | |
6a02d201 MS |
826 | line = readline (prompt); |
827 | else | |
828 | line = gdb_readline (0); | |
829 | ||
830 | linetype = validate_actionline (line, t); | |
831 | if (linetype == BADLINE) | |
832 | continue; /* already warned -- collect another line */ | |
833 | ||
834 | temp = xmalloc (sizeof (struct action_line)); | |
835 | temp->next = NULL; | |
836 | temp->action = line; | |
837 | ||
838 | if (next == NULL) /* first action for this tracepoint? */ | |
839 | t->actions = next = temp; | |
840 | else | |
841 | { | |
842 | next->next = temp; | |
843 | next = temp; | |
844 | } | |
845 | ||
846 | if (linetype == STEPPING) /* begin "while-stepping" */ | |
847 | if (prompt == prompt2) | |
848 | { | |
849 | warning ("Already processing 'while-stepping'"); | |
850 | continue; | |
851 | } | |
852 | else | |
853 | prompt = prompt2; /* change prompt for stepping actions */ | |
854 | else if (linetype == END) | |
855 | if (prompt == prompt2) | |
856 | prompt = prompt1; /* end of single-stepping actions */ | |
857 | else | |
858 | break; /* end of actions */ | |
859 | } | |
860 | #ifdef STOP_SIGNAL | |
861 | if (job_control) | |
862 | signal (STOP_SIGNAL, SIG_DFL); | |
863 | #endif | |
864 | immediate_quit = 0; | |
865 | discard_cleanups (old_chain); | |
866 | } | |
867 | ||
8b9c29f5 | 868 | /* worker function */ |
6a02d201 MS |
869 | static enum actionline_type |
870 | validate_actionline (line, t) | |
871 | char *line; | |
872 | struct tracepoint *t; | |
873 | { | |
728c7f37 | 874 | struct cmd_list_element *c; |
6a02d201 MS |
875 | struct expression *exp; |
876 | value_ptr temp, temp2; | |
728c7f37 | 877 | char *p; |
6a02d201 MS |
878 | |
879 | for (p = line; isspace (*p); ) | |
880 | p++; | |
881 | ||
882 | /* symbol lookup etc. */ | |
883 | if (*p == '\0') /* empty line: just prompt for another line. */ | |
884 | return BADLINE; | |
728c7f37 MS |
885 | |
886 | c = lookup_cmd (&p, cmdlist, "", -1, 1); | |
887 | if (c == 0) | |
888 | { | |
889 | warning ("'%s' is not an action that I know, or is ambiguous.", p); | |
890 | return BADLINE; | |
891 | } | |
892 | ||
893 | if (c->function.cfunc == collect_pseudocommand) | |
6a02d201 | 894 | { |
6a02d201 MS |
895 | do { /* repeat over a comma-separated list */ |
896 | while (isspace (*p)) | |
897 | p++; | |
898 | ||
6156728b MS |
899 | if (*p == '$') /* look for special pseudo-symbols */ |
900 | { | |
901 | long typecode, size; | |
902 | bfd_signed_vma offset; | |
903 | ||
904 | if ((0 == strncasecmp ("reg", p + 1, 3)) || | |
905 | (0 == strncasecmp ("arg", p + 1, 3)) || | |
906 | (0 == strncasecmp ("loc", p + 1, 3))) | |
907 | p = strchr (p, ','); | |
908 | ||
909 | else if (p[1] == '(') /* literal memrange */ | |
910 | p = parse_and_eval_memrange (p, t->address, | |
911 | &typecode, &offset, &size); | |
912 | } | |
6a02d201 MS |
913 | else |
914 | { | |
915 | exp = parse_exp_1 (&p, block_for_pc (t->address), 1); | |
6156728b | 916 | |
6a02d201 MS |
917 | if (exp->elts[0].opcode != OP_VAR_VALUE && |
918 | /*exp->elts[0].opcode != OP_LONG && */ | |
919 | /*exp->elts[0].opcode != UNOP_CAST && */ | |
920 | exp->elts[0].opcode != OP_REGISTER) | |
921 | { | |
728c7f37 | 922 | warning ("collect requires a variable or register name.\n"); |
6a02d201 MS |
923 | return BADLINE; |
924 | } | |
925 | if (exp->elts[0].opcode == OP_VAR_VALUE) | |
926 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) | |
927 | { | |
928 | warning ("%s is constant (value %d): will not be collected.", | |
929 | SYMBOL_NAME (exp->elts[2].symbol), | |
930 | SYMBOL_VALUE (exp->elts[2].symbol)); | |
931 | return BADLINE; | |
932 | } | |
933 | else if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_OPTIMIZED_OUT) | |
934 | { | |
935 | warning ("%s is optimized away and cannot be collected.", | |
936 | SYMBOL_NAME (exp->elts[2].symbol)); | |
937 | return BADLINE; | |
938 | } | |
939 | } | |
940 | } while (p && *p++ == ','); | |
941 | return GENERIC; | |
942 | } | |
728c7f37 | 943 | else if (c->function.cfunc == while_stepping_pseudocommand) |
6a02d201 MS |
944 | { |
945 | char *steparg; /* in case warning is necessary */ | |
946 | ||
6a02d201 MS |
947 | while (isspace (*p)) |
948 | p++; | |
949 | steparg = p; | |
950 | ||
951 | if (*p) | |
952 | { | |
953 | t->step_count = strtol (p, &p, 0); | |
954 | if (t->step_count == 0) | |
955 | { | |
956 | warning ("'%s' evaluates to zero -- command ignored."); | |
957 | return BADLINE; | |
958 | } | |
959 | } | |
960 | else | |
961 | t->step_count = -1; | |
962 | return STEPPING; | |
963 | } | |
728c7f37 | 964 | else if (c->function.cfunc == end_actions_pseudocommand) |
6a02d201 MS |
965 | return END; |
966 | else | |
967 | { | |
728c7f37 | 968 | warning ("'%s' is not a supported tracepoint action.", line); |
6a02d201 MS |
969 | return BADLINE; |
970 | } | |
971 | } | |
972 | ||
8b9c29f5 | 973 | /* worker function */ |
6a02d201 MS |
974 | static void |
975 | free_actions (t) | |
976 | struct tracepoint *t; | |
977 | { | |
978 | struct action_line *line, *next; | |
979 | ||
980 | for (line = t->actions; line; line = next) | |
981 | { | |
982 | next = line->next; | |
983 | free (line); | |
984 | } | |
985 | t->actions = NULL; | |
986 | } | |
987 | ||
988 | struct memrange { | |
989 | int type; /* 0 for absolute memory range, else basereg number */ | |
990 | bfd_signed_vma start; | |
991 | bfd_signed_vma end; | |
992 | }; | |
993 | ||
994 | struct collection_list { | |
995 | unsigned char regs_mask[8]; /* room for up to 256 regs */ | |
996 | long listsize; | |
997 | long next_memrange; | |
998 | struct memrange *list; | |
999 | } tracepoint_list, stepping_list; | |
1000 | ||
8b9c29f5 MS |
1001 | /* MEMRANGE functions: */ |
1002 | ||
1003 | /* parse a memrange spec from command input */ | |
1004 | static char * | |
1005 | parse_and_eval_memrange (arg, addr, typecode, offset, size) | |
1006 | char *arg; | |
1007 | CORE_ADDR addr; | |
1008 | long *typecode, *size; | |
1009 | bfd_signed_vma *offset; | |
1010 | { | |
1011 | char *start = arg; | |
1012 | struct expression *exp; | |
1013 | ||
1014 | if (*arg++ != '$' || *arg++ != '(') | |
1015 | error ("Internal: bad argument to validate_memrange: %s", start); | |
1016 | ||
1017 | if (*arg == '$') /* register for relative memrange? */ | |
1018 | { | |
1019 | exp = parse_exp_1 (&arg, block_for_pc (addr), 1); | |
1020 | if (exp->elts[0].opcode != OP_REGISTER) | |
1021 | error ("Bad register operand for memrange: %s", start); | |
1022 | if (*arg++ != ',') | |
1023 | error ("missing comma for memrange: %s", start); | |
1024 | *typecode = exp->elts[1].longconst; | |
1025 | } | |
1026 | else | |
1027 | *typecode = 0; | |
1028 | ||
1029 | #if 0 | |
1030 | /* While attractive, this fails for a number of reasons: | |
1031 | 1) parse_and_eval_address does not deal with trailing commas, | |
1032 | close-parens etc. | |
1033 | 2) There is no safeguard against the user trying to use | |
1034 | an out-of-scope variable in an address expression (for instance). | |
1035 | 2.5) If you are going to allow semi-arbitrary expressions, you | |
1036 | would need to explain which expressions are allowed, and | |
1037 | which are not (which would provoke endless questions). | |
1038 | 3) If you are going to allow semi-arbitrary expressions in the | |
1039 | offset and size fields, then the leading "$" of a register | |
1040 | name no longer disambiguates the typecode field. | |
1041 | */ | |
1042 | ||
1043 | *offset = parse_and_eval_address (arg); | |
1044 | if ((arg = strchr (arg, ',')) == NULL) | |
1045 | error ("missing comma for memrange: %s", start); | |
1046 | else | |
1047 | arg++; | |
1048 | ||
1049 | *size = parse_and_eval_address (arg); | |
1050 | if ((arg = strchr (arg, ')')) == NULL) | |
1051 | error ("missing close-parenthesis for memrange: %s", start); | |
1052 | else | |
1053 | arg++; | |
1054 | #else | |
1055 | #if 0 | |
1056 | /* This, on the other hand, doesn't work because "-1" is an | |
1057 | expression, not an OP_LONG! Fall back to using strtol for now. */ | |
1058 | ||
1059 | exp = parse_exp_1 (&arg, block_for_pc (addr), 1); | |
1060 | if (exp->elts[0].opcode != OP_LONG) | |
1061 | error ("Bad offset operand for memrange: %s", start); | |
1062 | *offset = exp->elts[2].longconst; | |
1063 | ||
1064 | if (*arg++ != ',') | |
1065 | error ("missing comma for memrange: %s", start); | |
1066 | ||
1067 | exp = parse_exp_1 (&arg, block_for_pc (addr), 1); | |
1068 | if (exp->elts[0].opcode != OP_LONG) | |
1069 | error ("Bad size operand for memrange: %s", start); | |
1070 | *size = exp->elts[2].longconst; | |
1071 | ||
1072 | if (*size <= 0) | |
1073 | error ("invalid size in memrange: %s", start); | |
1074 | ||
1075 | if (*arg++ != ')') | |
1076 | error ("missing close-parenthesis for memrange: %s", start); | |
1077 | #else | |
1078 | *offset = strtol (arg, &arg, 0); | |
1079 | if (*arg++ != ',') | |
1080 | error ("missing comma for memrange: %s", start); | |
1081 | *size = strtol (arg, &arg, 0); | |
1082 | if (*size <= 0) | |
1083 | error ("invalid size in memrange: %s", start); | |
1084 | if (*arg++ != ')') | |
1085 | error ("missing close-parenthesis for memrange: %s", start); | |
1086 | #endif | |
1087 | #endif | |
1088 | if (info_verbose) | |
1089 | printf_filtered ("Collecting memrange: (0x%x,0x%x,0x%x)\n", | |
1090 | *typecode, *offset, *size); | |
1091 | ||
1092 | return arg; | |
1093 | } | |
1094 | ||
1095 | /* compare memranges for qsort */ | |
6a02d201 MS |
1096 | static int |
1097 | memrange_cmp (a, b) | |
1098 | struct memrange *a, *b; | |
1099 | { | |
1100 | if (a->type < b->type) return -1; | |
1101 | if (a->type > b->type) return 1; | |
1102 | if (a->type == 0) | |
1103 | { | |
1104 | if ((bfd_vma) a->start < (bfd_vma) b->start) return -1; | |
1105 | if ((bfd_vma) a->start > (bfd_vma) b->start) return 1; | |
1106 | } | |
1107 | else | |
1108 | { | |
1109 | if (a->start < b->start) return -1; | |
1110 | if (a->start > b->start) return 1; | |
1111 | } | |
1112 | return 0; | |
1113 | } | |
1114 | ||
8b9c29f5 | 1115 | /* Sort the memrange list using qsort, and merge adjacent memranges */ |
6a02d201 MS |
1116 | static void |
1117 | memrange_sortmerge (memranges) | |
1118 | struct collection_list *memranges; | |
1119 | { | |
1120 | int a, b; | |
1121 | ||
1122 | qsort (memranges->list, memranges->next_memrange, | |
1123 | sizeof (struct memrange), memrange_cmp); | |
1124 | if (memranges->next_memrange > 0) | |
1125 | { | |
1126 | for (a = 0, b = 1; b < memranges->next_memrange; b++) | |
1127 | { | |
1128 | if (memranges->list[a].type == memranges->list[b].type && | |
1129 | memranges->list[b].start - memranges->list[a].end <= | |
1130 | MAX_REGISTER_VIRTUAL_SIZE) | |
1131 | { | |
1132 | memranges->list[a].end = memranges->list[b].end; | |
1133 | continue; /* next b, same a */ | |
1134 | } | |
1135 | a++; /* next a */ | |
1136 | if (a != b) | |
1137 | memcpy (&memranges->list[a], &memranges->list[b], | |
1138 | sizeof (struct memrange)); | |
1139 | } | |
1140 | memranges->next_memrange = a + 1; | |
1141 | } | |
1142 | } | |
1143 | ||
8b9c29f5 | 1144 | /* Add a register to a collection list */ |
6a02d201 MS |
1145 | void |
1146 | add_register (collection, regno) | |
1147 | struct collection_list *collection; | |
1148 | unsigned long regno; | |
1149 | { | |
1150 | if (info_verbose) | |
1151 | printf_filtered ("collect register %d\n", regno); | |
1152 | if (regno > (8 * sizeof (collection->regs_mask))) | |
1153 | error ("Internal: register number %d too large for tracepoint", | |
1154 | regno); | |
1155 | collection->regs_mask [regno / 8] |= 1 << (regno % 8); | |
1156 | } | |
1157 | ||
8b9c29f5 | 1158 | /* Add a memrange to a collection list */ |
6a02d201 MS |
1159 | static void |
1160 | add_memrange (memranges, type, base, len) | |
1161 | struct collection_list *memranges; | |
1162 | int type; | |
1163 | bfd_signed_vma base; | |
1164 | unsigned long len; | |
1165 | { | |
1166 | if (info_verbose) | |
1167 | printf_filtered ("(%d,0x%x,%d)\n", type, base, len); | |
1168 | /* type: 0 == memory, n == basereg */ | |
1169 | memranges->list[memranges->next_memrange].type = type; | |
1170 | /* base: addr if memory, offset if reg relative. */ | |
1171 | memranges->list[memranges->next_memrange].start = base; | |
1172 | /* len: we actually save end (base + len) for convenience */ | |
1173 | memranges->list[memranges->next_memrange].end = base + len; | |
1174 | memranges->next_memrange++; | |
1175 | if (memranges->next_memrange >= memranges->listsize) | |
1176 | { | |
1177 | memranges->listsize *= 2; | |
1178 | memranges->list = xrealloc (memranges->list, | |
1179 | memranges->listsize); | |
1180 | } | |
1181 | ||
1182 | if (type != 0) /* better collect the base register! */ | |
1183 | add_register (memranges, type); | |
1184 | } | |
1185 | ||
8b9c29f5 | 1186 | /* Add a symbol to a collection list */ |
6a02d201 MS |
1187 | static void |
1188 | collect_symbol (collect, sym) | |
1189 | struct collection_list *collect; | |
1190 | struct symbol *sym; | |
1191 | { | |
1192 | unsigned long len; | |
1193 | unsigned long reg; | |
1194 | bfd_signed_vma offset; | |
1195 | ||
1196 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); | |
1197 | switch (SYMBOL_CLASS (sym)) { | |
1198 | default: | |
1199 | printf_filtered ("%s: don't know symbol class %d\n", | |
1200 | SYMBOL_NAME (sym), SYMBOL_CLASS (sym)); | |
1201 | break; | |
1202 | case LOC_CONST: | |
1203 | printf_filtered ("%s is constant, value is %d: will not be collected.\n", | |
1204 | SYMBOL_NAME (sym), SYMBOL_VALUE (sym)); | |
1205 | break; | |
1206 | case LOC_STATIC: | |
1207 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
1208 | if (info_verbose) | |
1209 | printf_filtered ("LOC_STATIC %s: collect %d bytes " | |
1210 | "at 0x%08x\n", | |
1211 | SYMBOL_NAME (sym), len, offset); | |
1212 | add_memrange (collect, 0, offset, len); /* 0 == memory */ | |
1213 | break; | |
1214 | case LOC_REGISTER: | |
1215 | case LOC_REGPARM: | |
1216 | reg = SYMBOL_VALUE (sym); | |
1217 | if (info_verbose) | |
1218 | printf_filtered ("LOC_REG[parm] %s: ", SYMBOL_NAME (sym)); | |
1219 | add_register (collect, reg); | |
1220 | break; | |
1221 | case LOC_ARG: | |
1222 | case LOC_REF_ARG: | |
1223 | printf_filtered ("Sorry, don't know how to do LOC_ARGs yet.\n"); | |
1224 | printf_filtered (" (will not collect %s)\n", | |
1225 | SYMBOL_NAME (sym)); | |
1226 | break; | |
1227 | case LOC_REGPARM_ADDR: | |
1228 | reg = SYMBOL_VALUE (sym); | |
1229 | offset = 0; | |
1230 | if (info_verbose) | |
1231 | { | |
1232 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %d bytes at offset %d from reg %d\n", | |
1233 | SYMBOL_NAME (sym), len, offset, reg); | |
1234 | } | |
1235 | add_memrange (collect, reg, offset, len); | |
1236 | break; | |
1237 | case LOC_LOCAL: | |
1238 | case LOC_LOCAL_ARG: | |
1239 | offset = SYMBOL_VALUE (sym); | |
1240 | reg = FP_REGNUM; | |
1241 | if (info_verbose) | |
1242 | { | |
1243 | printf_filtered ("LOC_LOCAL %s: Collect %d bytes at offset %d from frame ptr reg %d\n", | |
1244 | SYMBOL_NAME (sym), len, offset, reg); | |
1245 | } | |
1246 | add_memrange (collect, reg, offset, len); | |
1247 | break; | |
1248 | case LOC_BASEREG: | |
1249 | case LOC_BASEREG_ARG: | |
1250 | reg = SYMBOL_BASEREG (sym); | |
1251 | offset = SYMBOL_VALUE (sym); | |
1252 | if (info_verbose) | |
1253 | { | |
1254 | printf_filtered ("LOC_BASEREG %s: collect %d bytes at offset %d from basereg %d\n", | |
1255 | SYMBOL_NAME (sym), len, offset, reg); | |
1256 | } | |
1257 | add_memrange (collect, reg, offset, len); | |
1258 | break; | |
1259 | case LOC_UNRESOLVED: | |
1260 | printf_filtered ("Don't know LOC_UNRESOLVED %s\n", SYMBOL_NAME (sym)); | |
1261 | break; | |
1262 | case LOC_OPTIMIZED_OUT: | |
1263 | printf_filtered ("%s has been optimized out of existance.\n", | |
1264 | SYMBOL_NAME (sym)); | |
1265 | break; | |
1266 | } | |
1267 | } | |
1268 | ||
8b9c29f5 | 1269 | /* Add all locals (or args) symbols to collection list */ |
6a02d201 MS |
1270 | static void |
1271 | add_local_symbols (collect, pc, type) | |
1272 | struct collection_list *collect; | |
1273 | CORE_ADDR pc; | |
1274 | char type; | |
1275 | { | |
1276 | struct symbol *sym; | |
1277 | struct block *block; | |
1278 | int i, nsyms, count = 0; | |
1279 | ||
1280 | block = block_for_pc (pc); | |
1281 | while (block != 0) | |
1282 | { | |
1283 | nsyms = BLOCK_NSYMS (block); | |
1284 | for (i = 0; i < nsyms; i++) | |
1285 | { | |
1286 | sym = BLOCK_SYM (block, i); | |
1287 | switch (SYMBOL_CLASS (sym)) { | |
1288 | case LOC_LOCAL: | |
1289 | case LOC_STATIC: | |
1290 | case LOC_REGISTER: | |
1291 | case LOC_BASEREG: | |
1292 | if (type == 'L') /* collecting Locals */ | |
1293 | { | |
1294 | count++; | |
1295 | collect_symbol (collect, sym); | |
1296 | } | |
1297 | break; | |
1298 | case LOC_ARG: | |
1299 | case LOC_LOCAL_ARG: | |
1300 | case LOC_REF_ARG: | |
1301 | case LOC_REGPARM: | |
1302 | case LOC_REGPARM_ADDR: | |
1303 | case LOC_BASEREG_ARG: | |
1304 | if (type == 'A') /* collecting Arguments */ | |
1305 | { | |
1306 | count++; | |
1307 | collect_symbol (collect, sym); | |
1308 | } | |
1309 | } | |
1310 | } | |
1311 | if (BLOCK_FUNCTION (block)) | |
1312 | break; | |
1313 | else | |
1314 | block = BLOCK_SUPERBLOCK (block); | |
1315 | } | |
1316 | if (count == 0) | |
1317 | warning ("No %s found in scope.", type == 'L' ? "locals" : "args"); | |
1318 | } | |
1319 | ||
8b9c29f5 | 1320 | /* worker function */ |
6a02d201 MS |
1321 | static void |
1322 | clear_collection_list (list) | |
1323 | struct collection_list *list; | |
1324 | { | |
1325 | list->next_memrange = 0; | |
1326 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); | |
1327 | } | |
1328 | ||
8b9c29f5 | 1329 | /* reduce a collection list to string form (for gdb protocol) */ |
6a02d201 MS |
1330 | static char * |
1331 | stringify_collection_list (list, string) | |
1332 | struct collection_list *list; | |
1333 | char *string; | |
1334 | { | |
1335 | char *end = string; | |
1336 | long i; | |
1337 | ||
1338 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) | |
1339 | if (list->regs_mask[i] != 0) /* skip leading zeroes in regs_mask */ | |
1340 | break; | |
1341 | if (list->regs_mask[i] != 0) /* prepare to send regs_mask to the stub */ | |
1342 | { | |
1343 | if (info_verbose) | |
1344 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
1345 | *end++='R'; | |
1346 | for (; i >= 0; i--) | |
1347 | { | |
1348 | if (info_verbose) | |
1349 | printf_filtered ("%02X", list->regs_mask[i]); | |
1350 | sprintf (end, "%02X", list->regs_mask[i]); | |
1351 | end += 2; | |
1352 | } | |
1353 | } | |
1354 | if (info_verbose) | |
1355 | printf_filtered ("\n"); | |
1356 | if (list->next_memrange > 0 && info_verbose) | |
1357 | printf_filtered ("Collecting memranges: \n"); | |
1358 | for (i = 0; i < list->next_memrange; i++) | |
1359 | { | |
1360 | if (info_verbose) | |
1361 | printf_filtered ("(%d, 0x%x, %d)\n", | |
1362 | list->list[i].type, | |
1363 | list->list[i].start, | |
1364 | list->list[i].end - list->list[i].start); | |
1365 | sprintf (end, "M%X,%X,%X", | |
1366 | list->list[i].type, | |
1367 | list->list[i].start, | |
1368 | list->list[i].end - list->list[i].start); | |
1369 | end += strlen (end); | |
1370 | } | |
1371 | if (end == string) | |
1372 | return NULL; | |
1373 | else | |
1374 | return string; | |
1375 | } | |
1376 | ||
8b9c29f5 | 1377 | /* render all actions into gdb protocol */ |
6a02d201 MS |
1378 | static void |
1379 | encode_actions (t, tdp_actions, step_count, stepping_actions) | |
1380 | struct tracepoint *t; | |
1381 | char **tdp_actions; | |
1382 | unsigned long *step_count; | |
1383 | char **stepping_actions; | |
1384 | { | |
6a02d201 | 1385 | static char tdp_buff[2048], step_buff[2048]; |
6a02d201 | 1386 | char *action_exp; |
728c7f37 MS |
1387 | struct expression *exp; |
1388 | struct action_line *action; | |
6a02d201 MS |
1389 | bfd_signed_vma offset; |
1390 | long i; | |
728c7f37 MS |
1391 | struct collection_list *collect; |
1392 | struct cmd_list_element *cmd; | |
6a02d201 MS |
1393 | |
1394 | clear_collection_list (&tracepoint_list); | |
1395 | clear_collection_list (&stepping_list); | |
1396 | collect = &tracepoint_list; | |
1397 | ||
1398 | *tdp_actions = NULL; | |
1399 | *stepping_actions = NULL; | |
1400 | ||
1401 | for (action = t->actions; action; action = action->next) | |
1402 | { | |
1403 | action_exp = action->action; | |
1404 | while (isspace (*action_exp)) | |
1405 | action_exp++; | |
1406 | ||
728c7f37 MS |
1407 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
1408 | if (cmd == 0) | |
1409 | error ("Bad action list item: %s", action_exp); | |
1410 | ||
1411 | if (cmd->function.cfunc == collect_pseudocommand) | |
6a02d201 | 1412 | { |
6a02d201 MS |
1413 | do { /* repeat over a comma-separated list */ |
1414 | while (isspace (*action_exp)) | |
1415 | action_exp++; | |
1416 | ||
1417 | if (0 == strncasecmp ("$reg", action_exp, 4)) | |
1418 | { | |
1419 | for (i = 0; i < NUM_REGS; i++) | |
1420 | add_register (collect, i); | |
6156728b | 1421 | action_exp = strchr (action_exp, ','); /* more? */ |
6a02d201 MS |
1422 | } |
1423 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1424 | { | |
1425 | add_local_symbols (collect, t->address, 'A'); | |
6156728b | 1426 | action_exp = strchr (action_exp, ','); /* more? */ |
6a02d201 MS |
1427 | } |
1428 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1429 | { | |
1430 | add_local_symbols (collect, t->address, 'L'); | |
6156728b MS |
1431 | action_exp = strchr (action_exp, ','); /* more? */ |
1432 | } | |
1433 | else if (action_exp[0] == '$' && | |
1434 | action_exp[1] == '(') /* literal memrange */ | |
1435 | { | |
1436 | long typecode, size; | |
1437 | bfd_signed_vma offset; | |
1438 | ||
1439 | action_exp = parse_and_eval_memrange (action_exp, | |
1440 | t->address, | |
1441 | &typecode, | |
1442 | &offset, | |
1443 | &size); | |
1444 | add_memrange (collect, typecode, offset, size); | |
6a02d201 MS |
1445 | } |
1446 | else | |
1447 | { | |
1448 | unsigned long addr, len; | |
1449 | ||
1450 | exp = parse_exp_1 (&action_exp, block_for_pc (t->address), 1); | |
1451 | switch (exp->elts[0].opcode) { | |
1452 | case OP_REGISTER: | |
1453 | i = exp->elts[1].longconst; | |
1454 | if (info_verbose) | |
1455 | printf_filtered ("OP_REGISTER: "); | |
1456 | add_register (collect, i); | |
1457 | break; | |
1458 | case OP_VAR_VALUE: | |
1459 | collect_symbol (collect, exp->elts[2].symbol); | |
1460 | break; | |
1461 | #if 0 | |
1462 | case OP_LONG: | |
1463 | addr = exp->elts[2].longconst; | |
1464 | if (*action_exp == ':') | |
1465 | { | |
1466 | exp = parse_exp_1 (&action_exp, | |
1467 | block_for_pc (t->address), | |
1468 | 1); | |
1469 | if (exp->elts[0].opcode == OP_LONG) | |
1470 | len = exp->elts[2].longconst; | |
1471 | else | |
1472 | error ("length field requires a literal long const"); | |
1473 | } | |
1474 | else | |
1475 | len = 4; | |
1476 | ||
1477 | add_memrange (collect, 0, addr, len); | |
1478 | break; | |
1479 | #endif | |
1480 | } | |
1481 | } | |
1482 | } while (action_exp && *action_exp++ == ','); | |
1483 | } | |
728c7f37 | 1484 | else if (cmd->function.cfunc == while_stepping_pseudocommand) |
6a02d201 MS |
1485 | { |
1486 | collect = &stepping_list; | |
1487 | } | |
728c7f37 | 1488 | else if (cmd->function.cfunc == end_actions_pseudocommand) |
6a02d201 MS |
1489 | { |
1490 | if (collect == &stepping_list) /* end stepping actions */ | |
1491 | collect = &tracepoint_list; | |
1492 | else | |
1493 | break; /* end tracepoint actions */ | |
1494 | } | |
1495 | } | |
1496 | memrange_sortmerge (&tracepoint_list); | |
1497 | memrange_sortmerge (&stepping_list); | |
1498 | ||
1499 | *tdp_actions = stringify_collection_list (&tracepoint_list, &tdp_buff); | |
1500 | *stepping_actions = stringify_collection_list (&stepping_list, &step_buff); | |
1501 | } | |
1502 | ||
1503 | static char target_buf[2048]; | |
1504 | ||
8b9c29f5 MS |
1505 | /* tstart command: |
1506 | ||
1507 | Tell target to lear any previous trace experiment. | |
1508 | Walk the list of tracepoints, and send them (and their actions) | |
1509 | to the target. If no errors, | |
1510 | Tell target to start a new trace experiment. */ | |
1511 | ||
6a02d201 MS |
1512 | static void |
1513 | trace_start_command (args, from_tty) | |
1514 | char *args; | |
1515 | int from_tty; | |
1516 | { /* STUB_COMM MOSTLY_IMPLEMENTED */ | |
1517 | struct tracepoint *t; | |
1518 | char buf[2048]; | |
1519 | char *tdp_actions; | |
1520 | char *stepping_actions; | |
1521 | unsigned long step_count; | |
1522 | ||
1523 | dont_repeat (); /* like "run", dangerous to repeat accidentally */ | |
1524 | ||
1525 | if (target_is_remote ()) | |
1526 | { | |
1527 | putpkt ("QTinit"); | |
1528 | remote_get_noisy_reply (target_buf); | |
1529 | if (strcmp (target_buf, "OK")) | |
1530 | error ("Target does not support this command."); | |
1531 | ||
1532 | ALL_TRACEPOINTS (t) | |
1533 | { | |
1534 | int ss_count; /* if actions include singlestepping */ | |
1535 | int disable_mask; /* ??? */ | |
1536 | int enable_mask; /* ??? */ | |
1537 | ||
1538 | sprintf (buf, "QTDP:%x:%x:%c:%x:%x", t->number, t->address, | |
1539 | t->enabled == enabled ? 'E' : 'D', | |
1540 | t->step_count, t->pass_count); | |
1541 | if (t->actions) | |
1542 | { | |
1543 | encode_actions (t, &tdp_actions, &step_count, &stepping_actions); | |
1544 | /* do_single_steps (t); */ | |
1545 | if (tdp_actions) | |
1546 | { | |
1547 | if (strlen (buf) + strlen (tdp_actions) >= sizeof (buf)) | |
1548 | error ("Actions for tracepoint %d too complex; " | |
1549 | "please simplify.", t->number); | |
1550 | strcat (buf, tdp_actions); | |
1551 | } | |
1552 | if (stepping_actions) | |
1553 | { | |
1554 | strcat (buf, "S"); | |
1555 | if (strlen (buf) + strlen (stepping_actions) >= sizeof (buf)) | |
1556 | error ("Actions for tracepoint %d too complex; " | |
1557 | "please simplify.", t->number); | |
1558 | strcat (buf, stepping_actions); | |
1559 | } | |
1560 | } | |
1561 | putpkt (buf); | |
1562 | remote_get_noisy_reply (target_buf); | |
1563 | if (strcmp (target_buf, "OK")) | |
1564 | error ("Target does not support tracepoints."); | |
1565 | } | |
1566 | putpkt ("QTStart"); | |
1567 | remote_get_noisy_reply (target_buf); | |
1568 | if (strcmp (target_buf, "OK")) | |
1569 | error ("Bogus reply from target: %s", target_buf); | |
6156728b MS |
1570 | set_traceframe_num (-1); /* all old traceframes invalidated */ |
1571 | set_tracepoint_num (-1); | |
1572 | set_traceframe_context(-1); | |
6a02d201 MS |
1573 | } |
1574 | else | |
1575 | printf_filtered ("Trace can only be run on remote targets.\n"); | |
1576 | } | |
1577 | ||
8b9c29f5 | 1578 | /* tstop command */ |
6a02d201 MS |
1579 | static void |
1580 | trace_stop_command (args, from_tty) | |
1581 | char *args; | |
1582 | int from_tty; | |
1583 | { /* STUB_COMM IS_IMPLEMENTED */ | |
1584 | if (target_is_remote ()) | |
1585 | { | |
1586 | putpkt ("QTStop"); | |
1587 | remote_get_noisy_reply (target_buf); | |
1588 | if (strcmp (target_buf, "OK")) | |
1589 | error ("Bogus reply from target: %s", target_buf); | |
1590 | } | |
1591 | else | |
1592 | error ("Trace can only be run on remote targets."); | |
1593 | } | |
1594 | ||
8b9c29f5 | 1595 | /* tstatus command */ |
6a02d201 MS |
1596 | static void |
1597 | trace_status_command (args, from_tty) | |
1598 | char *args; | |
1599 | int from_tty; | |
1600 | { /* STUB_COMM IS_IMPLEMENTED */ | |
1601 | if (target_is_remote ()) | |
1602 | { | |
1603 | putpkt ("qTStatus"); | |
1604 | remote_get_noisy_reply (target_buf); | |
1605 | if (strcmp (target_buf, "OK")) | |
1606 | error ("Bogus reply from target: %s", target_buf); | |
1607 | } | |
1608 | else | |
1609 | error ("Trace can only be run on remote targets."); | |
1610 | } | |
1611 | ||
8b9c29f5 | 1612 | /* Worker function for the various flavors of the tfind command */ |
6156728b MS |
1613 | static void |
1614 | finish_tfind_command (reply, from_tty) | |
1615 | char *reply; | |
1616 | int from_tty; | |
1617 | { | |
1618 | int target_frameno = -1, target_tracept = -1; | |
1619 | ||
1620 | while (reply && *reply) | |
1621 | switch (*reply) { | |
1622 | case 'F': | |
1623 | if ((target_frameno = strtol (++reply, &reply, 16)) == -1) | |
8b9c29f5 MS |
1624 | { |
1625 | /* A request for a non-existant trace frame has failed. | |
1626 | Our response will be different, depending on FROM_TTY: | |
1627 | ||
1628 | If FROM_TTY is true, meaning that this command was | |
1629 | typed interactively by the user, then give an error | |
1630 | and DO NOT change the state of traceframe_number etc. | |
1631 | ||
1632 | However if FROM_TTY is false, meaning that we're either | |
1633 | in a script, a loop, or a user-defined command, then | |
1634 | DON'T give an error, but DO change the state of | |
1635 | traceframe_number etc. to invalid. | |
1636 | ||
1637 | The rationalle is that if you typed the command, you | |
1638 | might just have committed a typo or something, and you'd | |
1639 | like to NOT lose your current debugging state. However | |
1640 | if you're in a user-defined command or especially in a | |
1641 | loop, then you need a way to detect that the command | |
1642 | failed WITHOUT aborting. This allows you to write | |
1643 | scripts that search thru the trace buffer until the end, | |
1644 | and then continue on to do something else. */ | |
1645 | ||
1646 | if (from_tty) | |
1647 | error ("Target failed to find requested trace frame."); | |
1648 | else | |
1649 | { | |
1650 | if (info_verbose) | |
1651 | printf_filtered ("End of trace buffer.\n"); | |
1652 | /* The following will not recurse, since it's special-cased */ | |
1653 | trace_find_command ("-1", from_tty); | |
1654 | } | |
1655 | } | |
6156728b MS |
1656 | break; |
1657 | case 'T': | |
1658 | if ((target_tracept = strtol (++reply, &reply, 16)) == -1) | |
1659 | error ("Target failed to find requested trace frame."); | |
1660 | break; | |
1661 | case 'O': /* "OK"? */ | |
1662 | if (reply[1] == 'K' && reply[2] == '\0') | |
1663 | reply += 2; | |
1664 | else | |
1665 | error ("Bogus reply from target: %s", reply); | |
1666 | break; | |
1667 | default: | |
1668 | error ("Bogus reply from target: %s", reply); | |
1669 | } | |
1670 | ||
1671 | flush_cached_frames (); | |
1672 | registers_changed (); | |
1673 | select_frame (get_current_frame (), 0); | |
1674 | set_traceframe_num (target_frameno); | |
1675 | set_tracepoint_num (target_tracept); | |
1676 | set_traceframe_context ((get_current_frame ())->pc); | |
1677 | ||
1678 | if (from_tty) | |
1679 | print_stack_frame (selected_frame, selected_frame_level, 1); | |
1680 | } | |
1681 | ||
1682 | /* trace_find_command takes a trace frame number n, | |
1683 | sends "QTFrame:<n>" to the target, | |
1684 | and accepts a reply that may contain several optional pieces | |
1685 | of information: a frame number, a tracepoint number, and an | |
1686 | indication of whether this is a trap frame or a stepping frame. | |
1687 | ||
1688 | The minimal response is just "OK" (which indicates that the | |
1689 | target does not give us a frame number or a tracepoint number). | |
1690 | Instead of that, the target may send us a string containing | |
1691 | any combination of: | |
1692 | F<hexnum> (gives the selected frame number) | |
1693 | T<hexnum> (gives the selected tracepoint number) | |
1694 | */ | |
1695 | ||
8b9c29f5 | 1696 | /* tfind command */ |
6a02d201 MS |
1697 | static void |
1698 | trace_find_command (args, from_tty) | |
1699 | char *args; | |
1700 | int from_tty; | |
1701 | { /* STUB_COMM PART_IMPLEMENTED */ | |
1702 | /* this should only be called with a numeric argument */ | |
6156728b MS |
1703 | int frameno = -1; |
1704 | int target_frameno = -1, target_tracept = -1, target_stepfrm = 0; | |
1705 | char *tmp; | |
1706 | ||
6a02d201 MS |
1707 | if (target_is_remote ()) |
1708 | { | |
1709 | if (args == 0 || *args == 0) | |
6156728b MS |
1710 | { /* TFIND with no args means find NEXT trace frame. */ |
1711 | if (traceframe_number == -1) | |
1712 | frameno = 0; /* "next" is first one */ | |
1713 | else | |
1714 | frameno = traceframe_number + 1; | |
1715 | } | |
1716 | else if (0 == strcmp (args, "-")) | |
1717 | { | |
1718 | if (traceframe_number == -1) | |
1719 | error ("not debugging trace buffer"); | |
1720 | else if (traceframe_number == 0) | |
1721 | error ("already at start of trace buffer"); | |
1722 | ||
1723 | frameno = traceframe_number - 1; | |
1724 | } | |
1725 | #if 0 | |
1726 | else if (0 == strcasecmp (args, "start")) | |
1727 | frameno = 0; | |
1728 | else if (0 == strcasecmp (args, "none") || | |
1729 | 0 == strcasecmp (args, "end")) | |
1730 | frameno = -1; | |
1731 | #endif | |
6a02d201 | 1732 | else |
6156728b | 1733 | frameno = parse_and_eval_address (args); |
6a02d201 | 1734 | |
6156728b MS |
1735 | sprintf (target_buf, "QTFrame:%x", frameno); |
1736 | putpkt (target_buf); | |
1737 | tmp = remote_get_noisy_reply (target_buf); | |
6a02d201 | 1738 | |
6156728b MS |
1739 | if (frameno == -1) /* end trace debugging */ |
1740 | { /* hopefully the stub has complied! */ | |
1741 | if (0 != strcmp (tmp, "F-1")) | |
1742 | error ("Bogus response from target: %s", tmp); | |
1743 | ||
1744 | flush_cached_frames (); | |
1745 | registers_changed (); | |
1746 | select_frame (get_current_frame (), 0); | |
1747 | set_traceframe_num (-1); | |
1748 | set_tracepoint_num (-1); | |
1749 | set_traceframe_context (-1); | |
1750 | ||
1751 | if (from_tty) | |
1752 | print_stack_frame (selected_frame, selected_frame_level, 1); | |
1753 | } | |
1754 | else | |
1755 | finish_tfind_command (tmp, from_tty); | |
6a02d201 MS |
1756 | } |
1757 | else | |
1758 | error ("Trace can only be run on remote targets."); | |
1759 | } | |
1760 | ||
8b9c29f5 | 1761 | /* tfind end */ |
6156728b MS |
1762 | static void |
1763 | trace_find_end_command (args, from_tty) | |
1764 | char *args; | |
1765 | int from_tty; | |
1766 | { | |
1767 | trace_find_command ("-1", from_tty); | |
1768 | } | |
1769 | ||
8b9c29f5 | 1770 | /* tfind none */ |
6156728b MS |
1771 | static void |
1772 | trace_find_none_command (args, from_tty) | |
1773 | char *args; | |
1774 | int from_tty; | |
1775 | { | |
1776 | trace_find_command ("-1", from_tty); | |
1777 | } | |
1778 | ||
8b9c29f5 | 1779 | /* tfind start */ |
6156728b MS |
1780 | static void |
1781 | trace_find_start_command (args, from_tty) | |
1782 | char *args; | |
1783 | int from_tty; | |
1784 | { | |
1785 | trace_find_command ("0", from_tty); | |
1786 | } | |
1787 | ||
8b9c29f5 | 1788 | /* tfind pc command */ |
6a02d201 MS |
1789 | static void |
1790 | trace_find_pc_command (args, from_tty) | |
1791 | char *args; | |
1792 | int from_tty; | |
1793 | { /* STUB_COMM PART_IMPLEMENTED */ | |
1794 | CORE_ADDR pc; | |
1795 | int target_frameno; | |
6156728b | 1796 | char *tmp; |
6a02d201 MS |
1797 | |
1798 | if (target_is_remote ()) | |
1799 | { | |
1800 | if (args == 0 || *args == 0) | |
6156728b MS |
1801 | pc = read_pc (); /* default is current pc */ |
1802 | else | |
1803 | pc = parse_and_eval_address (args); | |
6a02d201 | 1804 | |
6156728b MS |
1805 | sprintf (target_buf, "QTFrame:pc:%x", pc); |
1806 | putpkt (target_buf); | |
1807 | tmp = remote_get_noisy_reply (target_buf); | |
6a02d201 | 1808 | |
6156728b | 1809 | finish_tfind_command (tmp, from_tty); |
6a02d201 MS |
1810 | } |
1811 | else | |
1812 | error ("Trace can only be run on remote targets."); | |
1813 | } | |
1814 | ||
8b9c29f5 | 1815 | /* tfind tracepoint command */ |
6a02d201 | 1816 | static void |
6156728b | 1817 | trace_find_tracepoint_command (args, from_tty) |
6a02d201 MS |
1818 | char *args; |
1819 | int from_tty; | |
1820 | { /* STUB_COMM PART_IMPLEMENTED */ | |
1821 | int target_frameno, tdp; | |
1822 | char buf[40], *tmp; | |
1823 | ||
1824 | if (target_is_remote ()) | |
1825 | { | |
1826 | if (args == 0 || *args == 0) | |
6156728b MS |
1827 | if (tracepoint_number == -1) |
1828 | error ("No current tracepoint -- please supply an argument."); | |
1829 | else | |
1830 | tdp = tracepoint_number; /* default is current TDP */ | |
1831 | else | |
1832 | tdp = parse_and_eval_address (args); | |
6a02d201 | 1833 | |
6156728b MS |
1834 | sprintf (target_buf, "QTFrame:tdp:%x", tdp); |
1835 | putpkt (target_buf); | |
1836 | tmp = remote_get_noisy_reply (target_buf); | |
6a02d201 | 1837 | |
6156728b | 1838 | finish_tfind_command (tmp, from_tty); |
6a02d201 MS |
1839 | } |
1840 | else | |
1841 | error ("Trace can only be run on remote targets."); | |
1842 | } | |
1843 | ||
6156728b | 1844 | /* TFIND LINE command: |
8b9c29f5 MS |
1845 | |
1846 | This command will take a sourceline for argument, just like BREAK | |
1847 | or TRACE (ie. anything that "decode_line_1" can handle). | |
1848 | ||
1849 | With no argument, this command will find the next trace frame | |
1850 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
6156728b | 1851 | |
6a02d201 | 1852 | static void |
6156728b | 1853 | trace_find_line_command (args, from_tty) |
6a02d201 MS |
1854 | char *args; |
1855 | int from_tty; | |
1856 | { /* STUB_COMM PART_IMPLEMENTED */ | |
6156728b MS |
1857 | static CORE_ADDR start_pc, end_pc; |
1858 | struct symtabs_and_lines sals; | |
1859 | struct symtab_and_line sal; | |
6a02d201 | 1860 | int target_frameno; |
6156728b MS |
1861 | char *tmp; |
1862 | struct cleanup *old_chain; | |
6a02d201 MS |
1863 | |
1864 | if (target_is_remote ()) | |
1865 | { | |
6156728b MS |
1866 | if (args == 0 || *args == 0) |
1867 | { | |
1868 | sal = find_pc_line ((get_current_frame ())->pc, 0); | |
1869 | sals.nelts = 1; | |
1870 | sals.sals = (struct symtab_and_line *) | |
1871 | xmalloc (sizeof (struct symtab_and_line)); | |
1872 | sals.sals[0] = sal; | |
6a02d201 | 1873 | } |
6156728b | 1874 | else |
6a02d201 | 1875 | { |
6156728b MS |
1876 | sals = decode_line_spec (args, 1); |
1877 | sal = sals.sals[0]; | |
6a02d201 MS |
1878 | } |
1879 | ||
6156728b MS |
1880 | old_chain = make_cleanup (free, sals.sals); |
1881 | if (sal.symtab == 0) | |
1882 | { | |
1883 | printf_filtered ("TFIND: No line number information available"); | |
1884 | if (sal.pc != 0) | |
1885 | { | |
1886 | /* This is useful for "info line *0x7f34". If we can't tell the | |
1887 | user about a source line, at least let them have the symbolic | |
1888 | address. */ | |
1889 | printf_filtered (" for address "); | |
1890 | wrap_here (" "); | |
1891 | print_address (sal.pc, gdb_stdout); | |
1892 | printf_filtered (";\n -- will attempt to find by PC. \n"); | |
1893 | } | |
1894 | else | |
1895 | { | |
1896 | printf_filtered (".\n"); | |
1897 | return; /* no line, no PC; what can we do? */ | |
1898 | } | |
1899 | } | |
1900 | else if (sal.line > 0 | |
1901 | && find_line_pc_range (sal, &start_pc, &end_pc)) | |
1902 | { | |
1903 | if (start_pc == end_pc) | |
1904 | { | |
1905 | printf_filtered ("Line %d of \"%s\"", | |
1906 | sal.line, sal.symtab->filename); | |
1907 | wrap_here (" "); | |
1908 | printf_filtered (" is at address "); | |
1909 | print_address (start_pc, gdb_stdout); | |
1910 | wrap_here (" "); | |
1911 | printf_filtered (" but contains no code.\n"); | |
1912 | sal = find_pc_line (start_pc, 0); | |
1913 | if (sal.line > 0 && | |
1914 | find_line_pc_range (sal, &start_pc, &end_pc) && | |
1915 | start_pc != end_pc) | |
1916 | printf_filtered ("Attempting to find line %d instead.\n", | |
1917 | sal.line); | |
1918 | else | |
1919 | error ("Cannot find a good line."); | |
1920 | } | |
1921 | } | |
1922 | else | |
1923 | /* Is there any case in which we get here, and have an address | |
1924 | which the user would want to see? If we have debugging symbols | |
1925 | and no line numbers? */ | |
1926 | error ("Line number %d is out of range for \"%s\".\n", | |
1927 | sal.line, sal.symtab->filename); | |
1928 | ||
1929 | if (args && *args) /* find within range of stated line */ | |
1930 | sprintf (target_buf, "QTFrame:range:%x:%x", start_pc, end_pc - 1); | |
1931 | else /* find OUTSIDE OF range of CURRENT line */ | |
1932 | sprintf (target_buf, "QTFrame:outside:%x:%x", start_pc, end_pc - 1); | |
1933 | putpkt (target_buf); | |
1934 | tmp = remote_get_noisy_reply (target_buf); | |
1935 | ||
1936 | finish_tfind_command (tmp, from_tty); | |
1937 | do_cleanups (old_chain); | |
6a02d201 MS |
1938 | } |
1939 | else | |
1940 | error ("Trace can only be run on remote targets."); | |
1941 | } | |
1942 | ||
8b9c29f5 | 1943 | /* tfind range command */ |
6a02d201 | 1944 | static void |
6156728b | 1945 | trace_find_range_command (args, from_tty) |
6a02d201 MS |
1946 | char *args; |
1947 | int from_tty; | |
1948 | { /* STUB_COMM PART_IMPLEMENTED */ | |
6156728b | 1949 | static CORE_ADDR start, stop; |
6a02d201 | 1950 | int target_frameno; |
6156728b | 1951 | char *tmp; |
6a02d201 MS |
1952 | |
1953 | if (target_is_remote ()) | |
1954 | { | |
6156728b | 1955 | if (args == 0 || *args == 0) |
6a02d201 | 1956 | { /* XXX FIXME: what should default behavior be? */ |
6156728b | 1957 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); |
6a02d201 MS |
1958 | return; |
1959 | } | |
1960 | ||
6156728b | 1961 | if (0 != (tmp = strchr (args, ',' ))) |
6a02d201 | 1962 | { |
6156728b MS |
1963 | *tmp++ = '\0'; /* terminate start address */ |
1964 | while (isspace (*tmp)) | |
1965 | tmp++; | |
1966 | start = parse_and_eval_address (args); | |
1967 | stop = parse_and_eval_address (tmp); | |
1968 | } | |
1969 | else | |
1970 | { /* no explicit end address? */ | |
1971 | start = parse_and_eval_address (args); | |
1972 | stop = start + 1; /* ??? */ | |
6a02d201 MS |
1973 | } |
1974 | ||
6156728b MS |
1975 | sprintf (target_buf, "QTFrame:range:%x:%x", start, stop); |
1976 | putpkt (target_buf); | |
1977 | tmp = remote_get_noisy_reply (target_buf); | |
6a02d201 | 1978 | |
6156728b | 1979 | finish_tfind_command (tmp, from_tty); |
6a02d201 MS |
1980 | } |
1981 | else | |
1982 | error ("Trace can only be run on remote targets."); | |
1983 | } | |
1984 | ||
8b9c29f5 | 1985 | /* tfind outside command */ |
6a02d201 | 1986 | static void |
6156728b | 1987 | trace_find_outside_command (args, from_tty) |
6a02d201 MS |
1988 | char *args; |
1989 | int from_tty; | |
6156728b MS |
1990 | { /* STUB_COMM PART_IMPLEMENTED */ |
1991 | CORE_ADDR start, stop; | |
1992 | int target_frameno; | |
1993 | char *tmp; | |
1994 | ||
1995 | if (target_is_remote ()) | |
6a02d201 | 1996 | { |
6156728b MS |
1997 | if (args == 0 || *args == 0) |
1998 | { /* XXX FIXME: what should default behavior be? */ | |
1999 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); | |
2000 | return; | |
2001 | } | |
6a02d201 | 2002 | |
6156728b MS |
2003 | if (0 != (tmp = strchr (args, ',' ))) |
2004 | { | |
2005 | *tmp++ = '\0'; /* terminate start address */ | |
2006 | while (isspace (*tmp)) | |
2007 | tmp++; | |
2008 | start = parse_and_eval_address (args); | |
2009 | stop = parse_and_eval_address (tmp); | |
2010 | } | |
2011 | else | |
2012 | { /* no explicit end address? */ | |
2013 | start = parse_and_eval_address (args); | |
2014 | stop = start + 1; /* ??? */ | |
2015 | } | |
2016 | ||
2017 | sprintf (target_buf, "QTFrame:outside:%x:%x", start, stop); | |
2018 | putpkt (target_buf); | |
2019 | tmp = remote_get_noisy_reply (target_buf); | |
2020 | ||
2021 | finish_tfind_command (tmp, from_tty); | |
2022 | } | |
6a02d201 | 2023 | else |
6156728b | 2024 | error ("Trace can only be run on remote targets."); |
6a02d201 MS |
2025 | } |
2026 | ||
8b9c29f5 | 2027 | /* save-tracepoints command */ |
6a02d201 MS |
2028 | static void |
2029 | tracepoint_save_command (args, from_tty) | |
2030 | char *args; | |
2031 | int from_tty; | |
2032 | { | |
2033 | struct tracepoint *tp; | |
2034 | struct action_line *line; | |
2035 | FILE *fp; | |
2036 | char *i1 = " ", *i2 = " "; | |
2037 | char *indent, *actionline; | |
2038 | ||
2039 | if (args == 0 || *args == 0) | |
2040 | error ("Argument required (file name in which to save tracepoints"); | |
2041 | ||
2042 | if (tracepoint_chain == 0) | |
2043 | { | |
2044 | warning ("save-tracepoints: no tracepoints to save.\n"); | |
2045 | return; | |
2046 | } | |
2047 | ||
2048 | if (!(fp = fopen (args, "w"))) | |
2049 | error ("Unable to open file '%s' for saving tracepoints"); | |
2050 | ||
2051 | ALL_TRACEPOINTS (tp) | |
2052 | { | |
2053 | if (tp->addr_string) | |
2054 | fprintf (fp, "trace %s\n", tp->addr_string); | |
2055 | else | |
2056 | fprintf (fp, "trace *0x%x\n", tp->address); | |
2057 | ||
2058 | if (tp->pass_count) | |
2059 | fprintf (fp, " passcount %d\n", tp->pass_count); | |
2060 | ||
2061 | if (tp->actions) | |
2062 | { | |
2063 | fprintf (fp, " actions\n"); | |
2064 | indent = i1; | |
2065 | for (line = tp->actions; line; line = line->next) | |
2066 | { | |
728c7f37 MS |
2067 | struct cmd_list_element *cmd; |
2068 | ||
6a02d201 MS |
2069 | actionline = line->action; |
2070 | while (isspace(*actionline)) | |
2071 | actionline++; | |
2072 | ||
2073 | fprintf (fp, "%s%s\n", indent, actionline); | |
728c7f37 MS |
2074 | cmd = lookup_cmd (&actionline, cmdlist, "", -1, 1); |
2075 | if (cmd == 0) | |
2076 | error ("Bad action list item: %s", actionline); | |
2077 | if (cmd->function.cfunc == while_stepping_pseudocommand) | |
6a02d201 | 2078 | indent = i2; |
728c7f37 | 2079 | else if (cmd->function.cfunc == end_actions_pseudocommand) |
6a02d201 MS |
2080 | indent = i1; |
2081 | } | |
2082 | } | |
2083 | } | |
2084 | fclose (fp); | |
2085 | if (from_tty) | |
2086 | printf_filtered ("Tracepoints saved to file '%s'.\n", args); | |
2087 | return; | |
2088 | } | |
2089 | ||
8b9c29f5 | 2090 | /* info scope command: list the locals for a scope. */ |
6a02d201 MS |
2091 | static void |
2092 | scope_info (args, from_tty) | |
2093 | char *args; | |
2094 | int from_tty; | |
2095 | { | |
2096 | struct symtab_and_line sal; | |
2097 | struct symtabs_and_lines sals; | |
2098 | struct symbol *sym; | |
6156728b | 2099 | struct minimal_symbol *msym; |
6a02d201 | 2100 | struct block *block; |
6156728b | 2101 | char **canonical, *symname, *save_args = args; |
6a02d201 | 2102 | int i, nsyms, count = 0; |
6a02d201 MS |
2103 | |
2104 | if (args == 0 || *args == 0) | |
2105 | error ("requires an argument (function, line or *addr) to define a scope"); | |
2106 | ||
2107 | sals = decode_line_1 (&args, 1, NULL, 0, &canonical); | |
2108 | if (sals.nelts == 0) | |
2109 | return; /* presumably decode_line_1 has already warned */ | |
2110 | ||
6156728b MS |
2111 | /* Resolve line numbers to PC */ |
2112 | resolve_sal_pc (&sals.sals[0]); | |
6a02d201 | 2113 | block = block_for_pc (sals.sals[0].pc); |
6156728b | 2114 | |
6a02d201 MS |
2115 | while (block != 0) |
2116 | { | |
2117 | nsyms = BLOCK_NSYMS (block); | |
2118 | for (i = 0; i < nsyms; i++) | |
2119 | { | |
6156728b MS |
2120 | if (count == 0) |
2121 | printf_filtered ("Scope for %s:\n", save_args); | |
6a02d201 MS |
2122 | count++; |
2123 | sym = BLOCK_SYM (block, i); | |
6156728b MS |
2124 | symname = SYMBOL_NAME (sym); |
2125 | if (symname == NULL || *symname == '\0') | |
2126 | continue; /* probably botched, certainly useless */ | |
2127 | ||
2128 | printf_filtered ("Symbol %s is ", symname); | |
6a02d201 MS |
2129 | switch (SYMBOL_CLASS (sym)) { |
2130 | default: | |
2131 | case LOC_UNDEF: /* messed up symbol? */ | |
6156728b MS |
2132 | printf_filtered ("a bogus symbol, class %d.\n", |
2133 | SYMBOL_CLASS (sym)); | |
6a02d201 MS |
2134 | count--; /* don't count this one */ |
2135 | continue; | |
6156728b MS |
2136 | case LOC_CONST: |
2137 | printf_filtered ("a constant with value %d (0x%x)", | |
2138 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); | |
2139 | break; | |
2140 | case LOC_CONST_BYTES: | |
2141 | printf_filtered ("constant bytes: "); | |
2142 | if (SYMBOL_TYPE (sym)) | |
2143 | for (i = 0; i < TYPE_LENGTH (SYMBOL_TYPE (sym)); i++) | |
2144 | fprintf_filtered (gdb_stdout, " %02x", | |
2145 | (unsigned) SYMBOL_VALUE_BYTES (sym) [i]); | |
2146 | break; | |
2147 | case LOC_STATIC: | |
2148 | printf_filtered ("in static storage at address "); | |
2149 | print_address_numeric (SYMBOL_VALUE_ADDRESS (sym), 1, gdb_stdout); | |
2150 | break; | |
2151 | case LOC_REGISTER: | |
2152 | printf_filtered ("a local variable in register $%s", | |
2153 | reg_names [SYMBOL_VALUE (sym)]); | |
2154 | break; | |
2155 | case LOC_ARG: | |
2156 | case LOC_LOCAL_ARG: | |
2157 | printf_filtered ("an argument at stack/frame offset %ld", | |
2158 | SYMBOL_VALUE (sym)); | |
2159 | break; | |
2160 | case LOC_LOCAL: | |
2161 | printf_filtered ("a local variable at frame offset %ld", | |
2162 | SYMBOL_VALUE (sym)); | |
2163 | break; | |
2164 | case LOC_REF_ARG: | |
2165 | printf_filtered ("a reference argument at offset %ld", | |
2166 | SYMBOL_VALUE (sym)); | |
2167 | break; | |
2168 | case LOC_REGPARM: | |
2169 | printf_filtered ("an argument in register $%s", | |
2170 | reg_names[SYMBOL_VALUE (sym)]); | |
2171 | break; | |
6a02d201 | 2172 | case LOC_REGPARM_ADDR: |
6156728b MS |
2173 | printf_filtered ("the address of an argument, in register $%s", |
2174 | reg_names[SYMBOL_VALUE (sym)]); | |
2175 | break; | |
2176 | case LOC_TYPEDEF: | |
2177 | printf_filtered ("a typedef.\n"); | |
2178 | continue; | |
2179 | case LOC_LABEL: | |
2180 | printf_filtered ("a label at address "); | |
2181 | print_address_numeric (SYMBOL_VALUE_ADDRESS (sym), 1, gdb_stdout); | |
2182 | break; | |
2183 | case LOC_BLOCK: | |
2184 | printf_filtered ("a function at address "); | |
2185 | print_address_numeric (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), 1, | |
2186 | gdb_stdout); | |
2187 | break; | |
2188 | case LOC_BASEREG: | |
2189 | printf_filtered ("a variable at offset %d from register $%s", | |
2190 | SYMBOL_VALUE (sym), | |
2191 | reg_names [SYMBOL_BASEREG (sym)]); | |
2192 | break; | |
2193 | case LOC_BASEREG_ARG: | |
2194 | printf_filtered ("an argument at offset %d from register $%s", | |
2195 | SYMBOL_VALUE (sym), | |
2196 | reg_names [SYMBOL_BASEREG (sym)]); | |
2197 | break; | |
6a02d201 | 2198 | case LOC_UNRESOLVED: |
6156728b MS |
2199 | msym = lookup_minimal_symbol (SYMBOL_NAME (sym), NULL, NULL); |
2200 | if (msym == NULL) | |
2201 | printf_filtered ("Unresolved Static"); | |
2202 | else | |
2203 | { | |
2204 | printf_filtered ("static storage at address "); | |
2205 | print_address_numeric (SYMBOL_VALUE_ADDRESS (msym), 1, | |
2206 | gdb_stdout); | |
2207 | } | |
2208 | break; | |
2209 | case LOC_OPTIMIZED_OUT: | |
2210 | printf_filtered ("optimized out.\n"); | |
2211 | continue; | |
6a02d201 | 2212 | } |
6156728b MS |
2213 | if (SYMBOL_TYPE (sym)) |
2214 | printf_filtered (", length %d.\n", | |
2215 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); | |
6a02d201 MS |
2216 | } |
2217 | if (BLOCK_FUNCTION (block)) | |
2218 | break; | |
2219 | else | |
2220 | block = BLOCK_SUPERBLOCK (block); | |
2221 | } | |
2222 | if (count <= 0) | |
6156728b MS |
2223 | printf_filtered ("Scope for %s contains no locals or arguments.\n", |
2224 | save_args); | |
6a02d201 MS |
2225 | } |
2226 | ||
8b9c29f5 | 2227 | /* worker function (cleanup) */ |
6156728b MS |
2228 | static void |
2229 | replace_comma (comma) | |
2230 | char *comma; | |
2231 | { | |
2232 | *comma = ','; | |
2233 | } | |
2234 | ||
8b9c29f5 | 2235 | /* tdump command */ |
6156728b MS |
2236 | static void |
2237 | trace_dump_command (args, from_tty) | |
2238 | char *args; | |
2239 | int from_tty; | |
2240 | { | |
2241 | struct tracepoint *t; | |
2242 | struct action_line *action; | |
2243 | char *action_exp, *next_comma; | |
2244 | struct cleanup *old_cleanups; | |
2245 | int stepping_actions = 0; | |
2246 | int stepping_frame = 0; | |
2247 | ||
2248 | if (tracepoint_number == -1) | |
2249 | { | |
2250 | warning ("No current trace frame."); | |
2251 | return; | |
2252 | } | |
2253 | ||
2254 | ALL_TRACEPOINTS (t) | |
2255 | if (t->number == tracepoint_number) | |
2256 | break; | |
2257 | ||
2258 | if (t == NULL) | |
2259 | error ("No known tracepoint matches 'current' tracepoint #%d.", | |
2260 | tracepoint_number); | |
2261 | ||
2262 | old_cleanups = make_cleanup (null_cleanup, NULL); | |
2263 | ||
2264 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", | |
2265 | tracepoint_number, traceframe_number); | |
2266 | ||
2267 | /* The current frame is a trap frame if the frame PC is equal | |
2268 | to the tracepoint PC. If not, then the current frame was | |
2269 | collected during single-stepping. */ | |
2270 | ||
2271 | stepping_frame = (t->address != read_pc()); | |
2272 | ||
2273 | for (action = t->actions; action; action = action->next) | |
2274 | { | |
728c7f37 MS |
2275 | struct cmd_list_element *cmd; |
2276 | ||
6156728b MS |
2277 | action_exp = action->action; |
2278 | while (isspace (*action_exp)) | |
2279 | action_exp++; | |
2280 | ||
2281 | /* The collection actions to be done while stepping are | |
2282 | bracketed by the commands "while-stepping" and "end". */ | |
2283 | ||
728c7f37 MS |
2284 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
2285 | if (cmd == 0) | |
2286 | error ("Bad action list item: %s", action_exp); | |
2287 | ||
2288 | if (cmd->function.cfunc == while_stepping_pseudocommand) | |
6156728b | 2289 | stepping_actions = 1; |
728c7f37 | 2290 | else if (cmd->function.cfunc == end_actions_pseudocommand) |
6156728b | 2291 | stepping_actions = 0; |
728c7f37 | 2292 | else if (cmd->function.cfunc == collect_pseudocommand) |
6156728b MS |
2293 | { |
2294 | /* Display the collected data. | |
2295 | For the trap frame, display only what was collected at the trap. | |
2296 | Likewise for stepping frames, display only what was collected | |
2297 | while stepping. This means that the two boolean variables, | |
2298 | STEPPING_FRAME and STEPPING_ACTIONS should be equal. */ | |
2299 | if (stepping_frame == stepping_actions) | |
2300 | { | |
6156728b MS |
2301 | do { /* repeat over a comma-separated list */ |
2302 | QUIT; | |
2303 | if (*action_exp == ',') | |
2304 | action_exp++; | |
2305 | while (isspace (*action_exp)) | |
2306 | action_exp++; | |
2307 | ||
2308 | next_comma = strchr (action_exp, ','); | |
6156728b MS |
2309 | |
2310 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2311 | registers_info (NULL, from_tty); | |
2312 | else if (0 == strncasecmp (action_exp, "$loc", 4)) | |
2313 | locals_info (NULL, from_tty); | |
2314 | else if (0 == strncasecmp (action_exp, "$arg", 4)) | |
2315 | args_info (NULL, from_tty); | |
28ad0632 MS |
2316 | else if (action_exp[0] == '$' && action_exp[1] == '(') |
2317 | { /* memrange */ | |
2318 | long typecode, size; | |
2319 | bfd_signed_vma offset; | |
2320 | char fmt[40]; | |
2321 | ||
2322 | action_exp = parse_and_eval_memrange (action_exp, | |
2323 | read_pc (), | |
2324 | &typecode, | |
2325 | &offset, | |
2326 | &size); | |
2327 | if (typecode != 0 && typecode != -1) | |
2328 | offset += read_register (typecode); | |
2329 | sprintf (fmt, "/%dxb 0x%x", size, offset); | |
2330 | x_command (fmt, from_tty); | |
2331 | next_comma = strchr (action_exp, ','); | |
2332 | } | |
6156728b | 2333 | else |
28ad0632 MS |
2334 | { /* variable */ |
2335 | if (next_comma) | |
2336 | { | |
2337 | make_cleanup (replace_comma, next_comma); | |
2338 | *next_comma = '\0'; | |
2339 | } | |
6156728b MS |
2340 | printf_filtered ("%s = ", action_exp); |
2341 | output_command (action_exp, from_tty); | |
2342 | printf_filtered ("\n"); | |
2343 | } | |
2344 | if (next_comma) | |
2345 | *next_comma = ','; | |
2346 | action_exp = next_comma; | |
2347 | } while (action_exp && *action_exp == ','); | |
2348 | } | |
2349 | } | |
2350 | } | |
2351 | discard_cleanups (old_cleanups); | |
2352 | } | |
2353 | ||
8b9c29f5 | 2354 | /* module initialization */ |
6a02d201 MS |
2355 | void |
2356 | _initialize_tracepoint () | |
2357 | { | |
2358 | tracepoint_chain = 0; | |
2359 | tracepoint_count = 0; | |
6156728b MS |
2360 | traceframe_number = -1; |
2361 | tracepoint_number = -1; | |
6a02d201 MS |
2362 | |
2363 | set_internalvar (lookup_internalvar ("tpnum"), | |
2364 | value_from_longest (builtin_type_int, (LONGEST) 0)); | |
2365 | set_internalvar (lookup_internalvar ("trace_frame"), | |
2366 | value_from_longest (builtin_type_int, (LONGEST) 0)); | |
2367 | ||
2368 | if (tracepoint_list.list == NULL) | |
2369 | { | |
2370 | tracepoint_list.listsize = 128; | |
2371 | tracepoint_list.list = xmalloc | |
2372 | (tracepoint_list.listsize * sizeof (struct memrange)); | |
2373 | } | |
2374 | if (stepping_list.list == NULL) | |
2375 | { | |
2376 | stepping_list.listsize = 128; | |
2377 | stepping_list.list = xmalloc | |
2378 | (stepping_list.listsize * sizeof (struct memrange)); | |
2379 | } | |
2380 | ||
2381 | add_info ("scope", scope_info, | |
2382 | "List the variables local to a scope"); | |
2383 | ||
6a02d201 | 2384 | add_cmd ("tracepoints", class_trace, NO_FUNCTION, |
6156728b | 2385 | "Tracing of program execution without stopping the program.", |
6a02d201 MS |
2386 | &cmdlist); |
2387 | ||
2388 | add_info ("tracepoints", tracepoints_info, | |
6156728b MS |
2389 | "Status of tracepoints, or tracepoint number NUMBER.\n\ |
2390 | Convenience variable \"$tpnum\" contains the number of the\n\ | |
2391 | last tracepoint set."); | |
6a02d201 MS |
2392 | |
2393 | add_info_alias ("tp", "tracepoints", 1); | |
2394 | ||
2395 | add_com ("save-tracepoints", class_trace, tracepoint_save_command, | |
6156728b MS |
2396 | "Save current tracepoint definitions as a script.\n\ |
2397 | Use the 'source' command in another debug session to restore them."); | |
6a02d201 | 2398 | |
6156728b MS |
2399 | add_com ("tdump", class_trace, trace_dump_command, |
2400 | "Print everything collected at the current tracepoint."); | |
6a02d201 | 2401 | |
6156728b MS |
2402 | add_prefix_cmd ("tfind", class_trace, trace_find_command, |
2403 | "Select a trace frame;\n\ | |
2404 | No argument means forward by one frame; '-' meand backward by one frame.", | |
6a02d201 MS |
2405 | &tfindlist, "tfind ", 1, &cmdlist); |
2406 | ||
2407 | add_cmd ("outside", class_trace, trace_find_outside_command, | |
6156728b MS |
2408 | "Select a trace frame whose PC is outside the given \ |
2409 | range.\nUsage: tfind outside addr1, addr2", | |
6a02d201 MS |
2410 | &tfindlist); |
2411 | ||
2412 | add_cmd ("range", class_trace, trace_find_range_command, | |
6156728b MS |
2413 | "Select a trace frame whose PC is in the given range.\n\ |
2414 | Usage: tfind range addr1,addr2", | |
2415 | &tfindlist); | |
6a02d201 | 2416 | |
6156728b MS |
2417 | add_cmd ("line", class_trace, trace_find_line_command, |
2418 | "Select a trace frame by source line.\n\ | |
2419 | Argument can be a line number (with optional source file), \n\ | |
2420 | a function name, or '*' followed by an address.\n\ | |
2421 | Default argument is 'the next source line that was traced'.", | |
2422 | &tfindlist); | |
2423 | ||
2424 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, | |
2425 | "Select a trace frame by tracepoint number.\n\ | |
2426 | Default is the tracepoint for the current trace frame.", | |
2427 | &tfindlist); | |
6a02d201 MS |
2428 | |
2429 | add_cmd ("pc", class_trace, trace_find_pc_command, | |
6156728b MS |
2430 | "Select a trace frame by PC.\n\ |
2431 | Default is the current PC, or the PC of the current trace frame.", | |
2432 | &tfindlist); | |
6a02d201 | 2433 | |
6156728b MS |
2434 | add_cmd ("end", class_trace, trace_find_end_command, |
2435 | "Synonym for 'none'.\n\ | |
2436 | De-select any trace frame and resume 'live' debugging.", | |
2437 | &tfindlist); | |
2438 | ||
2439 | add_cmd ("none", class_trace, trace_find_none_command, | |
2440 | "De-select any trace frame and resume 'live' debugging.", | |
2441 | &tfindlist); | |
2442 | ||
2443 | add_cmd ("start", class_trace, trace_find_start_command, | |
2444 | "Select the first trace frame in the trace buffer.", | |
2445 | &tfindlist); | |
6a02d201 MS |
2446 | |
2447 | add_com ("tstatus", class_trace, trace_status_command, | |
6156728b | 2448 | "Display the status of the current trace data collection."); |
6a02d201 MS |
2449 | |
2450 | add_com ("tstop", class_trace, trace_stop_command, | |
2451 | "Stop trace data collection."); | |
2452 | ||
2453 | add_com ("tstart", class_trace, trace_start_command, | |
2454 | "Start trace data collection."); | |
2455 | ||
2456 | add_com ("passcount", class_trace, trace_pass_command, | |
6156728b MS |
2457 | "Set the passcount for a tracepoint.\n\ |
2458 | The trace will end when the tracepoint has been passed 'count' times.\n\ | |
2459 | Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\ | |
2460 | if TPNUM is omitted, passcount refers to the last tracepoint defined."); | |
2461 | ||
728c7f37 | 2462 | add_com ("end", class_trace, end_actions_pseudocommand, |
6156728b MS |
2463 | "Ends a list of commands or actions.\n\ |
2464 | Several GDB commands allow you to enter a list of commands or actions.\n\ | |
2465 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
2466 | such a list.\n\n\ | |
2467 | Note: the \"end\" command cannot be used at the gdb prompt."); | |
2468 | ||
728c7f37 | 2469 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, |
6156728b MS |
2470 | "Specify single-stepping behavior at a tracepoint.\n\ |
2471 | Argument is number of instructions to trace in single-step mode\n\ | |
2472 | following the tracepoint. This command is normally followed by\n\ | |
2473 | one or more \"collect\" commands, to specify what to collect\n\ | |
2474 | while single-stepping.\n\n\ | |
2475 | Note: this command can only be used in a tracepoint \"actions\" list."); | |
2476 | ||
728c7f37 MS |
2477 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
2478 | add_com_alias ("stepping", "while-stepping", class_alias, 0); | |
2479 | ||
2480 | add_com ("collect", class_trace, collect_pseudocommand, | |
6156728b MS |
2481 | "Specify one or more data items to be collected at a tracepoint.\n\ |
2482 | Accepts a comma-separated list of (one or more) arguments.\n\ | |
2483 | Things that may be collected include registers, variables, plus\n\ | |
2484 | the following special arguments:\n\ | |
2485 | $regs -- all registers.\n\ | |
2486 | $args -- all function arguments.\n\ | |
2487 | $locals -- all variables local to the block/function scope.\n\ | |
2488 | $(addr,len) -- a literal memory range.\n\ | |
2489 | $($reg,addr,len) -- a register-relative literal memory range.\n\n\ | |
2490 | Note: this command can only be used in a tracepoint \"actions\" list."); | |
6a02d201 MS |
2491 | |
2492 | add_com ("actions", class_trace, trace_actions_command, | |
6156728b MS |
2493 | "Specify the actions to be taken at a tracepoint.\n\ |
2494 | Tracepoint actions may include collecting of specified data, \n\ | |
2495 | single-stepping, or enabling/disabling other tracepoints, \n\ | |
2496 | depending on target's capabilities."); | |
6a02d201 MS |
2497 | |
2498 | add_cmd ("tracepoints", class_trace, delete_trace_command, | |
6156728b MS |
2499 | "Delete specified tracepoints.\n\ |
2500 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
2501 | No argument means delete all tracepoints.", | |
6a02d201 MS |
2502 | &deletelist); |
2503 | ||
2504 | add_cmd ("tracepoints", class_trace, disable_trace_command, | |
6156728b MS |
2505 | "Disable specified tracepoints.\n\ |
2506 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
2507 | No argument means disable all tracepoints.", | |
6a02d201 MS |
2508 | &disablelist); |
2509 | ||
2510 | add_cmd ("tracepoints", class_trace, enable_trace_command, | |
6156728b MS |
2511 | "Enable specified tracepoints.\n\ |
2512 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
2513 | No argument means enable all tracepoints.", | |
6a02d201 MS |
2514 | &enablelist); |
2515 | ||
2516 | add_com ("trace", class_trace, trace_command, | |
6156728b MS |
2517 | "Set a tracepoint at a specified line or function or address.\n\ |
2518 | Argument may be a line number, function name, or '*' plus an address.\n\ | |
2519 | For a line number or function, trace at the start of its code.\n\ | |
2520 | If an address is specified, trace at that exact address.\n\n\ | |
2521 | Do \"help tracepoints\" for info on other tracepoint commands."); | |
6a02d201 MS |
2522 | |
2523 | add_com_alias ("tp", "trace", class_alias, 0); | |
2524 | add_com_alias ("tr", "trace", class_alias, 1); | |
2525 | add_com_alias ("tra", "trace", class_alias, 1); | |
2526 | add_com_alias ("trac", "trace", class_alias, 1); | |
6a02d201 | 2527 | } |
6156728b | 2528 |