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)); | |
e59ddd6e | 47 | extern void x_command PARAMS ((char *, int)); |
6a02d201 MS |
48 | |
49 | /* If this definition isn't overridden by the header files, assume | |
50 | that isatty and fileno exist on this system. */ | |
51 | #ifndef ISATTY | |
52 | #define ISATTY(FP) (isatty (fileno (FP))) | |
53 | #endif | |
54 | ||
8b9c29f5 MS |
55 | /* |
56 | Tracepoint.c: | |
57 | ||
58 | This module defines the following debugger commands: | |
59 | trace : set a tracepoint on a function, line, or address. | |
60 | info trace : list all debugger-defined tracepoints. | |
61 | delete trace : delete one or more tracepoints. | |
62 | enable trace : enable one or more tracepoints. | |
63 | disable trace : disable one or more tracepoints. | |
64 | actions : specify actions to be taken at a tracepoint. | |
65 | passcount : specify a pass count for a tracepoint. | |
66 | tstart : start a trace experiment. | |
67 | tstop : stop a trace experiment. | |
68 | tstatus : query the status of a trace experiment. | |
69 | tfind : find a trace frame in the trace buffer. | |
70 | tdump : print everything collected at the current tracepoint. | |
71 | save-tracepoints : write tracepoint setup into a file. | |
72 | ||
73 | This module defines the following user-visible debugger variables: | |
74 | $trace_frame : sequence number of trace frame currently being debugged. | |
75 | $trace_line : source line of trace frame currently being debugged. | |
76 | $trace_file : source file of trace frame currently being debugged. | |
77 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
78 | */ | |
79 | ||
80 | ||
81 | /* ======= Important global variables: ======= */ | |
82 | ||
6a02d201 MS |
83 | /* Chain of all tracepoints defined. */ |
84 | struct tracepoint *tracepoint_chain; | |
85 | ||
86 | /* Number of last tracepoint made. */ | |
87 | static int tracepoint_count; | |
88 | ||
89 | /* Number of last traceframe collected. */ | |
90 | static int traceframe_number; | |
91 | ||
6156728b MS |
92 | /* Tracepoint for last traceframe collected. */ |
93 | static int tracepoint_number; | |
94 | ||
95 | /* Symbol for function for last traceframe collected */ | |
96 | static struct symbol *traceframe_fun; | |
97 | ||
98 | /* Symtab and line for last traceframe collected */ | |
99 | static struct symtab_and_line traceframe_sal; | |
100 | ||
8b9c29f5 MS |
101 | /* Tracing command lists */ |
102 | static struct cmd_list_element *tfindlist; | |
8b9c29f5 MS |
103 | |
104 | /* ======= Important command functions: ======= */ | |
105 | static void trace_command PARAMS ((char *, int)); | |
106 | static void tracepoints_info PARAMS ((char *, int)); | |
107 | static void delete_trace_command PARAMS ((char *, int)); | |
108 | static void enable_trace_command PARAMS ((char *, int)); | |
109 | static void disable_trace_command PARAMS ((char *, int)); | |
110 | static void trace_pass_command PARAMS ((char *, int)); | |
111 | static void trace_actions_command PARAMS ((char *, int)); | |
112 | static void trace_start_command PARAMS ((char *, int)); | |
113 | static void trace_stop_command PARAMS ((char *, int)); | |
114 | static void trace_status_command PARAMS ((char *, int)); | |
115 | static void trace_find_command PARAMS ((char *, int)); | |
116 | static void trace_find_pc_command PARAMS ((char *, int)); | |
117 | static void trace_find_tracepoint_command PARAMS ((char *, int)); | |
118 | static void trace_find_line_command PARAMS ((char *, int)); | |
119 | static void trace_find_range_command PARAMS ((char *, int)); | |
120 | static void trace_find_outside_command PARAMS ((char *, int)); | |
121 | static void tracepoint_save_command PARAMS ((char *, int)); | |
122 | static void trace_dump_command PARAMS ((char *, int)); | |
123 | ||
124 | ||
6a02d201 MS |
125 | /* Utility: returns true if "target remote" */ |
126 | static int | |
127 | target_is_remote () | |
128 | { | |
129 | if (current_target.to_shortname && | |
130 | strcmp (current_target.to_shortname, "remote") == 0) | |
131 | return 1; | |
132 | else | |
133 | return 0; | |
134 | } | |
135 | ||
136 | /* Utility: generate error from an incoming stub packet. */ | |
137 | static void | |
138 | trace_error (buf) | |
139 | char *buf; | |
140 | { | |
141 | if (*buf++ != 'E') | |
142 | return; /* not an error msg */ | |
143 | switch (*buf) | |
144 | { | |
145 | case '1': /* malformed packet error */ | |
146 | if (*++buf == '0') /* general case: */ | |
6156728b | 147 | error ("tracepoint.c: error in outgoing packet."); |
6a02d201 | 148 | else |
6156728b MS |
149 | error ("tracepoint.c: error in outgoing packet at field #%d.", |
150 | strtol (buf, NULL, 16)); | |
6a02d201 | 151 | case '2': |
6156728b | 152 | error ("trace API error 0x%s.", ++buf); |
6a02d201 MS |
153 | default: |
154 | error ("Target returns error code '%s'.", buf); | |
155 | } | |
156 | } | |
157 | ||
6a02d201 | 158 | /* Utility: wait for reply from stub, while accepting "O" packets */ |
6156728b | 159 | static char * |
6a02d201 MS |
160 | remote_get_noisy_reply (buf) |
161 | char *buf; | |
162 | { | |
163 | do /* loop on reply from remote stub */ | |
164 | { | |
165 | getpkt (buf, 0); | |
166 | if (buf[0] == 0) | |
167 | error ("Target does not support this command."); | |
168 | else if (buf[0] == 'E') | |
169 | trace_error (buf); | |
6a02d201 MS |
170 | else if (buf[0] == 'O' && |
171 | buf[1] != 'K') | |
172 | remote_console_output (buf + 1); /* 'O' message from stub */ | |
173 | else | |
6156728b | 174 | return buf; /* here's the actual reply */ |
6a02d201 MS |
175 | } while (1); |
176 | } | |
177 | ||
178 | /* Set tracepoint count to NUM. */ | |
179 | static void | |
180 | set_tracepoint_count (num) | |
181 | int num; | |
182 | { | |
183 | tracepoint_count = num; | |
184 | set_internalvar (lookup_internalvar ("tpnum"), | |
185 | value_from_longest (builtin_type_int, (LONGEST) num)); | |
186 | } | |
187 | ||
188 | /* Set traceframe number to NUM. */ | |
189 | static void | |
190 | set_traceframe_num (num) | |
191 | int num; | |
192 | { | |
193 | traceframe_number = num; | |
194 | set_internalvar (lookup_internalvar ("trace_frame"), | |
195 | value_from_longest (builtin_type_int, (LONGEST) num)); | |
196 | } | |
197 | ||
6156728b MS |
198 | /* Set tracepoint number to NUM. */ |
199 | static void | |
200 | set_tracepoint_num (num) | |
201 | int num; | |
202 | { | |
203 | tracepoint_number = num; | |
204 | set_internalvar (lookup_internalvar ("tracepoint"), | |
205 | value_from_longest (builtin_type_int, (LONGEST) num)); | |
206 | } | |
207 | ||
208 | /* Set externally visible debug variables for querying/printing | |
209 | the traceframe context (line, function, file) */ | |
210 | ||
211 | static void | |
212 | set_traceframe_context (trace_pc) | |
213 | CORE_ADDR trace_pc; | |
214 | { | |
215 | static struct type *func_string, *file_string; | |
216 | static struct type *func_range, *file_range; | |
217 | static value_ptr func_val, file_val; | |
218 | static struct type *charstar; | |
219 | int len; | |
220 | ||
221 | if (charstar == (struct type *) NULL) | |
222 | charstar = lookup_pointer_type (builtin_type_char); | |
223 | ||
224 | if (trace_pc == -1) /* cease debugging any trace buffers */ | |
225 | { | |
226 | traceframe_fun = 0; | |
227 | traceframe_sal.pc = traceframe_sal.line = 0; | |
228 | traceframe_sal.symtab = NULL; | |
229 | set_internalvar (lookup_internalvar ("trace_func"), | |
230 | value_from_longest (charstar, (LONGEST) 0)); | |
231 | set_internalvar (lookup_internalvar ("trace_file"), | |
232 | value_from_longest (charstar, (LONGEST) 0)); | |
233 | set_internalvar (lookup_internalvar ("trace_line"), | |
234 | value_from_longest (builtin_type_int, (LONGEST) -1)); | |
235 | return; | |
236 | } | |
237 | ||
238 | /* save as globals for internal use */ | |
239 | traceframe_sal = find_pc_line (trace_pc, 0); | |
240 | traceframe_fun = find_pc_function (trace_pc); | |
241 | ||
242 | /* save linenumber as "$trace_line", a debugger variable visible to users */ | |
243 | set_internalvar (lookup_internalvar ("trace_line"), | |
244 | value_from_longest (builtin_type_int, | |
245 | (LONGEST) traceframe_sal.line)); | |
246 | ||
247 | /* save func name as "$trace_func", a debugger variable visible to users */ | |
248 | if (traceframe_fun == NULL || | |
249 | SYMBOL_NAME (traceframe_fun) == NULL) | |
250 | set_internalvar (lookup_internalvar ("trace_func"), | |
251 | value_from_longest (charstar, (LONGEST) 0)); | |
252 | else | |
253 | { | |
254 | len = strlen (SYMBOL_NAME (traceframe_fun)); | |
255 | func_range = create_range_type (func_range, | |
256 | builtin_type_int, 0, len - 1); | |
257 | func_string = create_array_type (func_string, | |
258 | builtin_type_char, func_range); | |
259 | func_val = allocate_value (func_string); | |
260 | VALUE_TYPE (func_val) = func_string; | |
261 | memcpy (VALUE_CONTENTS_RAW (func_val), | |
262 | SYMBOL_NAME (traceframe_fun), | |
263 | len); | |
264 | func_val->modifiable = 0; | |
265 | set_internalvar (lookup_internalvar ("trace_func"), func_val); | |
266 | } | |
267 | ||
268 | /* save file name as "$trace_file", a debugger variable visible to users */ | |
269 | if (traceframe_sal.symtab == NULL || | |
270 | traceframe_sal.symtab->filename == NULL) | |
271 | set_internalvar (lookup_internalvar ("trace_file"), | |
272 | value_from_longest (charstar, (LONGEST) 0)); | |
273 | else | |
274 | { | |
275 | len = strlen (traceframe_sal.symtab->filename); | |
276 | file_range = create_range_type (file_range, | |
277 | builtin_type_int, 0, len - 1); | |
278 | file_string = create_array_type (file_string, | |
279 | builtin_type_char, file_range); | |
280 | file_val = allocate_value (file_string); | |
281 | VALUE_TYPE (file_val) = file_string; | |
282 | memcpy (VALUE_CONTENTS_RAW (file_val), | |
283 | traceframe_sal.symtab->filename, | |
284 | len); | |
285 | file_val->modifiable = 0; | |
286 | set_internalvar (lookup_internalvar ("trace_file"), file_val); | |
287 | } | |
288 | } | |
289 | ||
6a02d201 MS |
290 | /* Low level routine to set a tracepoint. |
291 | Returns the tracepoint object so caller can set other things. | |
292 | Does not set the tracepoint number! | |
293 | Does not print anything. | |
294 | ||
295 | ==> This routine should not be called if there is a chance of later | |
296 | error(); otherwise it leaves a bogus tracepoint on the chain. Validate | |
297 | your arguments BEFORE calling this routine! */ | |
298 | ||
299 | static struct tracepoint * | |
300 | set_raw_tracepoint (sal) | |
301 | struct symtab_and_line sal; | |
302 | { | |
303 | register struct tracepoint *t, *tc; | |
304 | struct cleanup *old_chain; | |
305 | ||
306 | t = (struct tracepoint *) xmalloc (sizeof (struct tracepoint)); | |
307 | old_chain = make_cleanup (free, t); | |
308 | memset (t, 0, sizeof (*t)); | |
309 | t->address = sal.pc; | |
310 | if (sal.symtab == NULL) | |
311 | t->source_file = NULL; | |
312 | else | |
57c0b026 | 313 | { |
018d76dd KS |
314 | char *p; |
315 | ||
57c0b026 | 316 | t->source_file = (char *) xmalloc (strlen (sal.symtab->filename) + |
018d76dd | 317 | strlen (sal.symtab->dirname) + 2); |
57c0b026 MS |
318 | |
319 | strcpy (t->source_file, sal.symtab->dirname); | |
018d76dd | 320 | p = t->source_file; |
6c3908db KS |
321 | while (*p) |
322 | p++; | |
323 | if (*(--p) != '/') /* Will this work on Windows? */ | |
018d76dd | 324 | strcat (t->source_file, "/"); |
57c0b026 MS |
325 | strcat (t->source_file, sal.symtab->filename); |
326 | } | |
327 | ||
6a02d201 MS |
328 | t->language = current_language->la_language; |
329 | t->input_radix = input_radix; | |
330 | t->line_number = sal.line; | |
7a880bf3 MS |
331 | t->enabled = enabled; |
332 | t->next = 0; | |
333 | t->step_count = 0; | |
334 | t->pass_count = 0; | |
335 | t->addr_string = NULL; | |
6a02d201 MS |
336 | |
337 | /* Add this tracepoint to the end of the chain | |
338 | so that a list of tracepoints will come out in order | |
339 | of increasing numbers. */ | |
340 | ||
341 | tc = tracepoint_chain; | |
342 | if (tc == 0) | |
343 | tracepoint_chain = t; | |
344 | else | |
345 | { | |
346 | while (tc->next) | |
347 | tc = tc->next; | |
348 | tc->next = t; | |
349 | } | |
350 | discard_cleanups (old_chain); | |
351 | return t; | |
352 | } | |
353 | ||
8b9c29f5 | 354 | /* Set a tracepoint according to ARG (function, linenum or *address) */ |
6a02d201 MS |
355 | static void |
356 | trace_command (arg, from_tty) | |
357 | char *arg; | |
358 | int from_tty; | |
359 | { | |
360 | char **canonical = (char **)NULL; | |
361 | struct symtabs_and_lines sals; | |
362 | struct symtab_and_line sal; | |
363 | struct tracepoint *t; | |
bf1aae13 | 364 | char *addr_start = 0, *addr_end = 0; |
6a02d201 MS |
365 | int i; |
366 | ||
367 | if (!arg || !*arg) | |
368 | error ("trace command requires an argument"); | |
369 | ||
370 | if (from_tty && info_verbose) | |
371 | printf_filtered ("TRACE %s\n", arg); | |
372 | ||
373 | if (arg[0] == '/') | |
374 | { | |
375 | return; | |
376 | } | |
377 | ||
378 | addr_start = arg; | |
379 | sals = decode_line_1 (&arg, 1, (struct symtab *)NULL, 0, &canonical); | |
380 | addr_end = arg; | |
381 | if (! sals.nelts) | |
382 | return; /* ??? Presumably decode_line_1 has already warned? */ | |
383 | ||
384 | /* Resolve all line numbers to PC's */ | |
385 | for (i = 0; i < sals.nelts; i++) | |
386 | resolve_sal_pc (&sals.sals[i]); | |
387 | ||
388 | /* Now set all the tracepoints. */ | |
389 | for (i = 0; i < sals.nelts; i++) | |
390 | { | |
391 | sal = sals.sals[i]; | |
392 | ||
393 | t = set_raw_tracepoint (sal); | |
394 | set_tracepoint_count (tracepoint_count + 1); | |
395 | t->number = tracepoint_count; | |
396 | ||
397 | /* If a canonical line spec is needed use that instead of the | |
6156728b | 398 | command string. */ |
6a02d201 | 399 | if (canonical != (char **)NULL && canonical[i] != NULL) |
6156728b | 400 | t->addr_string = canonical[i]; |
6a02d201 | 401 | else if (addr_start) |
6156728b | 402 | t->addr_string = savestring (addr_start, addr_end - addr_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; | |
6a02d201 MS |
528 | |
529 | switch (opcode) { | |
530 | case enable: | |
531 | t->enabled = enabled; | |
a5f4fbff KS |
532 | if (modify_tracepoint_hook) |
533 | modify_tracepoint_hook (t); | |
6a02d201 MS |
534 | break; |
535 | case disable: | |
536 | t->enabled = disabled; | |
a5f4fbff KS |
537 | if (modify_tracepoint_hook) |
538 | modify_tracepoint_hook (t); | |
6a02d201 MS |
539 | break; |
540 | case delete: | |
541 | if (tracepoint_chain == t) | |
542 | tracepoint_chain = t->next; | |
543 | ||
544 | ALL_TRACEPOINTS (t2) | |
545 | if (t2->next == t) | |
546 | { | |
547 | t2->next = t->next; | |
548 | break; | |
549 | } | |
57c0b026 MS |
550 | |
551 | /* Let the UI know of any deletions */ | |
552 | if (delete_tracepoint_hook) | |
553 | delete_tracepoint_hook (t); | |
554 | ||
6a02d201 MS |
555 | if (t->addr_string) |
556 | free (t->addr_string); | |
557 | if (t->source_file) | |
558 | free (t->source_file); | |
d9ba1c3f MS |
559 | if (t->actions) |
560 | free_actions (t); | |
561 | ||
6a02d201 MS |
562 | free (t); |
563 | break; | |
564 | } | |
565 | } | |
566 | ||
567 | /* Utility: parse a tracepoint number and look it up in the list. */ | |
57c0b026 | 568 | struct tracepoint * |
6a02d201 MS |
569 | get_tracepoint_by_number (arg) |
570 | char **arg; | |
571 | { | |
572 | struct tracepoint *t; | |
6156728b | 573 | char *end, *copy; |
6a02d201 MS |
574 | value_ptr val; |
575 | int tpnum; | |
576 | ||
577 | if (arg == 0) | |
578 | error ("Bad tracepoint argument"); | |
579 | ||
580 | if (*arg == 0 || **arg == 0) /* empty arg means refer to last tp */ | |
581 | tpnum = tracepoint_count; | |
582 | else if (**arg == '$') /* handle convenience variable */ | |
583 | { | |
6156728b MS |
584 | /* Make a copy of the name, so we can null-terminate it |
585 | to pass to lookup_internalvar(). */ | |
586 | end = *arg + 1; | |
587 | while (isalnum(*end) || *end == '_') | |
588 | end++; | |
589 | copy = (char *) alloca (end - *arg); | |
590 | strncpy (copy, *arg + 1, (end - *arg - 1)); | |
591 | copy[end - *arg - 1] = '\0'; | |
592 | *arg = end; | |
593 | ||
594 | val = value_of_internalvar (lookup_internalvar (copy)); | |
6a02d201 MS |
595 | if (TYPE_CODE( VALUE_TYPE (val)) != TYPE_CODE_INT) |
596 | error ("Convenience variable must have integral type."); | |
597 | tpnum = (int) value_as_long (val); | |
598 | } | |
599 | else /* handle tracepoint number */ | |
600 | { | |
601 | tpnum = strtol (*arg, arg, 10); | |
602 | } | |
603 | ALL_TRACEPOINTS (t) | |
604 | if (t->number == tpnum) | |
605 | { | |
606 | return t; | |
607 | } | |
608 | warning ("No tracepoint number %d.\n", tpnum); | |
609 | return NULL; | |
610 | } | |
611 | ||
612 | /* Utility: parse a list of tracepoint numbers, and call a func for each. */ | |
613 | static void | |
614 | map_args_over_tracepoints (args, from_tty, opcode) | |
615 | char *args; | |
616 | int from_tty; | |
617 | enum tracepoint_opcode opcode; | |
618 | { | |
99fa2de0 | 619 | struct tracepoint *t, *tmp; |
6a02d201 MS |
620 | int tpnum; |
621 | char *cp; | |
622 | ||
623 | if (args == 0 || *args == 0) /* do them all */ | |
99fa2de0 | 624 | ALL_TRACEPOINTS_SAFE (t, tmp) |
6a02d201 MS |
625 | tracepoint_operation (t, from_tty, opcode); |
626 | else | |
627 | while (*args) | |
628 | { | |
629 | if (t = get_tracepoint_by_number (&args)) | |
630 | tracepoint_operation (t, from_tty, opcode); | |
631 | while (*args == ' ' || *args == '\t') | |
632 | args++; | |
633 | } | |
634 | } | |
635 | ||
8b9c29f5 | 636 | /* The 'enable trace' command enables tracepoints. Not supported by all targets. */ |
6a02d201 MS |
637 | static void |
638 | enable_trace_command (args, from_tty) | |
639 | char *args; | |
640 | int from_tty; | |
641 | { | |
642 | dont_repeat (); | |
643 | map_args_over_tracepoints (args, from_tty, enable); | |
644 | } | |
645 | ||
8b9c29f5 | 646 | /* The 'disable trace' command enables tracepoints. Not supported by all targets. */ |
6a02d201 MS |
647 | static void |
648 | disable_trace_command (args, from_tty) | |
649 | char *args; | |
650 | int from_tty; | |
651 | { | |
652 | dont_repeat (); | |
653 | map_args_over_tracepoints (args, from_tty, disable); | |
654 | } | |
655 | ||
8b9c29f5 | 656 | /* Remove a tracepoint (or all if no argument) */ |
6a02d201 MS |
657 | static void |
658 | delete_trace_command (args, from_tty) | |
659 | char *args; | |
660 | int from_tty; | |
661 | { | |
662 | dont_repeat (); | |
663 | if (!args || !*args) | |
664 | if (!query ("Delete all tracepoints? ")) | |
665 | return; | |
666 | ||
667 | map_args_over_tracepoints (args, from_tty, delete); | |
668 | } | |
669 | ||
8b9c29f5 MS |
670 | /* Set passcount for tracepoint. |
671 | ||
672 | First command argument is passcount, second is tracepoint number. | |
673 | If tracepoint number omitted, apply to most recently defined. | |
674 | Also accepts special argument "all". */ | |
675 | ||
6a02d201 MS |
676 | static void |
677 | trace_pass_command (args, from_tty) | |
678 | char *args; | |
679 | int from_tty; | |
680 | { | |
681 | struct tracepoint *t1 = (struct tracepoint *) -1, *t2; | |
682 | unsigned long count; | |
683 | ||
684 | if (args == 0 || *args == 0) | |
685 | error ("PASS command requires an argument (count + optional TP num)"); | |
686 | ||
687 | count = strtoul (args, &args, 10); /* count comes first, then TP num */ | |
688 | ||
689 | while (*args && isspace (*args)) | |
690 | args++; | |
691 | ||
692 | if (*args && strncasecmp (args, "all", 3) == 0) | |
693 | args += 3; /* skip special argument "all" */ | |
694 | else | |
695 | t1 = get_tracepoint_by_number (&args); | |
696 | ||
697 | if (t1 == NULL) | |
698 | return; /* error, bad tracepoint number */ | |
699 | ||
700 | ALL_TRACEPOINTS (t2) | |
701 | if (t1 == (struct tracepoint *) -1 || t1 == t2) | |
702 | { | |
703 | t2->pass_count = count; | |
704 | if (from_tty) | |
705 | printf_filtered ("Setting tracepoint %d's passcount to %d\n", | |
706 | t2->number, count); | |
707 | } | |
708 | } | |
709 | ||
8b9c29f5 MS |
710 | /* ACTIONS functions: */ |
711 | ||
712 | /* Prototypes for action-parsing utility commands */ | |
713 | static void read_actions PARAMS((struct tracepoint *)); | |
8b9c29f5 MS |
714 | static char *parse_and_eval_memrange PARAMS ((char *, |
715 | CORE_ADDR, | |
716 | long *, | |
717 | bfd_signed_vma *, | |
718 | long *)); | |
719 | ||
720 | /* The three functions: | |
728c7f37 MS |
721 | collect_pseudocommand, |
722 | while_stepping_pseudocommand, and | |
723 | end_actions_pseudocommand | |
8b9c29f5 MS |
724 | are placeholders for "commands" that are actually ONLY to be used |
725 | within a tracepoint action list. If the actual function is ever called, | |
726 | it means that somebody issued the "command" at the top level, | |
727 | which is always an error. */ | |
6a02d201 | 728 | |
6156728b | 729 | static void |
728c7f37 | 730 | end_actions_pseudocommand (args, from_tty) |
5d187fd3 MS |
731 | char *args; |
732 | int from_tty; | |
6156728b MS |
733 | { |
734 | error ("This command cannot be used at the top level."); | |
735 | } | |
736 | ||
737 | static void | |
728c7f37 | 738 | while_stepping_pseudocommand (args, from_tty) |
5d187fd3 MS |
739 | char *args; |
740 | int 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) |
5d187fd3 MS |
747 | char *args; |
748 | int from_tty; | |
6156728b MS |
749 | { |
750 | error ("This command can only be used in a tracepoint actions list."); | |
751 | } | |
752 | ||
8b9c29f5 | 753 | /* Enter a list of actions for a tracepoint. */ |
6a02d201 MS |
754 | static void |
755 | trace_actions_command (args, from_tty) | |
756 | char *args; | |
757 | int from_tty; | |
758 | { | |
759 | struct tracepoint *t; | |
760 | char *actions; | |
6c3908db KS |
761 | char tmpbuf[128]; |
762 | char *end_msg = "End with a line saying just \"end\"."; | |
6a02d201 MS |
763 | |
764 | if (t = get_tracepoint_by_number (&args)) | |
765 | { | |
6c3908db KS |
766 | sprintf (tmpbuf, "Enter actions for tracepoint %d, one per line.", |
767 | t->number); | |
768 | ||
7a880bf3 MS |
769 | if (from_tty) |
770 | { | |
771 | if (readline_begin_hook) | |
772 | (*readline_begin_hook) ("%s %s\n", tmpbuf, end_msg); | |
773 | else if (input_from_terminal_p ()) | |
774 | printf_filtered ("%s\n%s\n", tmpbuf, end_msg); | |
775 | } | |
6c3908db | 776 | |
6a02d201 MS |
777 | free_actions (t); |
778 | read_actions (t); | |
6c3908db KS |
779 | |
780 | if (readline_end_hook) | |
781 | (*readline_end_hook) (); | |
782 | ||
6a02d201 MS |
783 | /* tracepoints_changed () */ |
784 | } | |
785 | /* else error, just return; */ | |
786 | } | |
787 | ||
788 | enum actionline_type | |
789 | { | |
790 | BADLINE = -1, | |
791 | GENERIC = 0, | |
792 | END = 1, | |
793 | STEPPING = 2, | |
794 | }; | |
795 | ||
d9ba1c3f | 796 | static enum actionline_type validate_actionline PARAMS((char **, |
2b146fa0 MS |
797 | struct tracepoint *)); |
798 | ||
8b9c29f5 | 799 | /* worker function */ |
6a02d201 MS |
800 | static void |
801 | read_actions (t) | |
802 | struct tracepoint *t; | |
803 | { | |
804 | char *line; | |
805 | char *prompt1 = "> ", *prompt2 = " > "; | |
806 | char *prompt = prompt1; | |
807 | enum actionline_type linetype; | |
808 | extern FILE *instream; | |
809 | struct action_line *next = NULL, *temp; | |
810 | struct cleanup *old_chain; | |
811 | ||
812 | /* Control-C quits instantly if typed while in this loop | |
813 | since it should not wait until the user types a newline. */ | |
814 | immediate_quit++; | |
815 | #ifdef STOP_SIGNAL | |
816 | if (job_control) | |
817 | signal (STOP_SIGNAL, stop_sig); | |
818 | #endif | |
819 | old_chain = make_cleanup (free_actions, (void *) t); | |
820 | while (1) | |
821 | { | |
822 | /* Make sure that all output has been output. Some machines may let | |
823 | you get away with leaving out some of the gdb_flush, but not all. */ | |
824 | wrap_here (""); | |
825 | gdb_flush (gdb_stdout); | |
826 | gdb_flush (gdb_stderr); | |
6c3908db KS |
827 | |
828 | if (readline_hook && instream == NULL) | |
829 | line = (*readline_hook) (prompt); | |
830 | else if (instream == stdin && ISATTY (instream)) | |
99fa2de0 MS |
831 | { |
832 | line = readline (prompt); | |
833 | if (line && *line) /* add it to command history */ | |
834 | add_history (line); | |
835 | } | |
6a02d201 MS |
836 | else |
837 | line = gdb_readline (0); | |
838 | ||
d9ba1c3f | 839 | linetype = validate_actionline (&line, t); |
6a02d201 MS |
840 | if (linetype == BADLINE) |
841 | continue; /* already warned -- collect another line */ | |
842 | ||
843 | temp = xmalloc (sizeof (struct action_line)); | |
844 | temp->next = NULL; | |
845 | temp->action = line; | |
846 | ||
847 | if (next == NULL) /* first action for this tracepoint? */ | |
848 | t->actions = next = temp; | |
849 | else | |
850 | { | |
851 | next->next = temp; | |
852 | next = temp; | |
853 | } | |
854 | ||
855 | if (linetype == STEPPING) /* begin "while-stepping" */ | |
856 | if (prompt == prompt2) | |
857 | { | |
858 | warning ("Already processing 'while-stepping'"); | |
859 | continue; | |
860 | } | |
861 | else | |
862 | prompt = prompt2; /* change prompt for stepping actions */ | |
863 | else if (linetype == END) | |
864 | if (prompt == prompt2) | |
865 | prompt = prompt1; /* end of single-stepping actions */ | |
866 | else | |
867 | break; /* end of actions */ | |
868 | } | |
869 | #ifdef STOP_SIGNAL | |
870 | if (job_control) | |
871 | signal (STOP_SIGNAL, SIG_DFL); | |
872 | #endif | |
873 | immediate_quit = 0; | |
874 | discard_cleanups (old_chain); | |
875 | } | |
876 | ||
8b9c29f5 | 877 | /* worker function */ |
6a02d201 MS |
878 | static enum actionline_type |
879 | validate_actionline (line, t) | |
d9ba1c3f | 880 | char **line; |
6a02d201 MS |
881 | struct tracepoint *t; |
882 | { | |
728c7f37 | 883 | struct cmd_list_element *c; |
6a02d201 MS |
884 | struct expression *exp; |
885 | value_ptr temp, temp2; | |
728c7f37 | 886 | char *p; |
6a02d201 | 887 | |
d9ba1c3f | 888 | for (p = *line; isspace (*p); ) |
6a02d201 MS |
889 | p++; |
890 | ||
891 | /* symbol lookup etc. */ | |
892 | if (*p == '\0') /* empty line: just prompt for another line. */ | |
893 | return BADLINE; | |
728c7f37 | 894 | |
5d187fd3 MS |
895 | if (*p == '#') /* comment line */ |
896 | return GENERIC; | |
897 | ||
728c7f37 MS |
898 | c = lookup_cmd (&p, cmdlist, "", -1, 1); |
899 | if (c == 0) | |
900 | { | |
901 | warning ("'%s' is not an action that I know, or is ambiguous.", p); | |
902 | return BADLINE; | |
903 | } | |
904 | ||
905 | if (c->function.cfunc == collect_pseudocommand) | |
6a02d201 | 906 | { |
6a02d201 MS |
907 | do { /* repeat over a comma-separated list */ |
908 | while (isspace (*p)) | |
909 | p++; | |
910 | ||
6156728b MS |
911 | if (*p == '$') /* look for special pseudo-symbols */ |
912 | { | |
913 | long typecode, size; | |
914 | bfd_signed_vma offset; | |
915 | ||
916 | if ((0 == strncasecmp ("reg", p + 1, 3)) || | |
917 | (0 == strncasecmp ("arg", p + 1, 3)) || | |
918 | (0 == strncasecmp ("loc", p + 1, 3))) | |
919 | p = strchr (p, ','); | |
920 | ||
921 | else if (p[1] == '(') /* literal memrange */ | |
d9ba1c3f MS |
922 | { |
923 | char *temp, *newline; | |
924 | ||
925 | newline = malloc (strlen (*line) + 32); | |
926 | strcpy (newline, *line); | |
927 | newline[p - *line] = '\0'; | |
928 | /* newline is now a copy of line, up to "p" (the memrange) */ | |
929 | temp = parse_and_eval_memrange (p, t->address, | |
930 | &typecode, &offset, &size) + 1; | |
931 | /* now compose the memrange as a literal value */ | |
932 | if (typecode == -1) | |
933 | sprintf (newline + strlen (newline), | |
934 | "$(0x%x, %d)", | |
935 | offset, size); | |
936 | else | |
937 | sprintf (newline + strlen (newline), | |
938 | "$($%s, 0x%x, %d)", | |
939 | reg_names[typecode], offset, size); | |
940 | /* now add the remainder of the old line to the new one */ | |
941 | p = newline + strlen (newline); | |
942 | if (temp && *temp) | |
943 | strcat (newline, temp); | |
944 | free (*line); | |
945 | *line = newline; | |
946 | } | |
6156728b | 947 | } |
6a02d201 MS |
948 | else |
949 | { | |
950 | exp = parse_exp_1 (&p, block_for_pc (t->address), 1); | |
6156728b | 951 | |
6a02d201 | 952 | if (exp->elts[0].opcode != OP_VAR_VALUE && |
d9ba1c3f | 953 | exp->elts[0].opcode != UNOP_MEMVAL && |
6a02d201 MS |
954 | /*exp->elts[0].opcode != OP_LONG && */ |
955 | /*exp->elts[0].opcode != UNOP_CAST && */ | |
956 | exp->elts[0].opcode != OP_REGISTER) | |
957 | { | |
728c7f37 | 958 | warning ("collect requires a variable or register name.\n"); |
6a02d201 MS |
959 | return BADLINE; |
960 | } | |
961 | if (exp->elts[0].opcode == OP_VAR_VALUE) | |
962 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) | |
963 | { | |
964 | warning ("%s is constant (value %d): will not be collected.", | |
965 | SYMBOL_NAME (exp->elts[2].symbol), | |
966 | SYMBOL_VALUE (exp->elts[2].symbol)); | |
967 | return BADLINE; | |
968 | } | |
969 | else if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_OPTIMIZED_OUT) | |
970 | { | |
971 | warning ("%s is optimized away and cannot be collected.", | |
972 | SYMBOL_NAME (exp->elts[2].symbol)); | |
973 | return BADLINE; | |
974 | } | |
975 | } | |
976 | } while (p && *p++ == ','); | |
977 | return GENERIC; | |
978 | } | |
728c7f37 | 979 | else if (c->function.cfunc == while_stepping_pseudocommand) |
6a02d201 MS |
980 | { |
981 | char *steparg; /* in case warning is necessary */ | |
982 | ||
6a02d201 MS |
983 | while (isspace (*p)) |
984 | p++; | |
985 | steparg = p; | |
986 | ||
987 | if (*p) | |
988 | { | |
989 | t->step_count = strtol (p, &p, 0); | |
990 | if (t->step_count == 0) | |
991 | { | |
992 | warning ("'%s' evaluates to zero -- command ignored."); | |
993 | return BADLINE; | |
994 | } | |
995 | } | |
996 | else | |
997 | t->step_count = -1; | |
998 | return STEPPING; | |
999 | } | |
728c7f37 | 1000 | else if (c->function.cfunc == end_actions_pseudocommand) |
6a02d201 MS |
1001 | return END; |
1002 | else | |
1003 | { | |
d9ba1c3f | 1004 | warning ("'%s' is not a supported tracepoint action.", *line); |
6a02d201 MS |
1005 | return BADLINE; |
1006 | } | |
1007 | } | |
1008 | ||
8b9c29f5 | 1009 | /* worker function */ |
a5f4fbff | 1010 | void |
6a02d201 MS |
1011 | free_actions (t) |
1012 | struct tracepoint *t; | |
1013 | { | |
1014 | struct action_line *line, *next; | |
1015 | ||
1016 | for (line = t->actions; line; line = next) | |
1017 | { | |
1018 | next = line->next; | |
d9ba1c3f MS |
1019 | if (line->action) |
1020 | free (line->action); | |
6a02d201 MS |
1021 | free (line); |
1022 | } | |
1023 | t->actions = NULL; | |
1024 | } | |
1025 | ||
1026 | struct memrange { | |
1027 | int type; /* 0 for absolute memory range, else basereg number */ | |
1028 | bfd_signed_vma start; | |
1029 | bfd_signed_vma end; | |
1030 | }; | |
1031 | ||
1032 | struct collection_list { | |
1033 | unsigned char regs_mask[8]; /* room for up to 256 regs */ | |
1034 | long listsize; | |
1035 | long next_memrange; | |
1036 | struct memrange *list; | |
1037 | } tracepoint_list, stepping_list; | |
1038 | ||
8b9c29f5 MS |
1039 | /* MEMRANGE functions: */ |
1040 | ||
1041 | /* parse a memrange spec from command input */ | |
1042 | static char * | |
1043 | parse_and_eval_memrange (arg, addr, typecode, offset, size) | |
1044 | char *arg; | |
1045 | CORE_ADDR addr; | |
1046 | long *typecode, *size; | |
1047 | bfd_signed_vma *offset; | |
1048 | { | |
d9ba1c3f | 1049 | char *start = arg; |
8b9c29f5 | 1050 | struct expression *exp; |
d9ba1c3f | 1051 | value_ptr val; |
8b9c29f5 MS |
1052 | |
1053 | if (*arg++ != '$' || *arg++ != '(') | |
d9ba1c3f | 1054 | error ("Internal: bad argument to parse_and_eval_memrange: %s", start); |
8b9c29f5 MS |
1055 | |
1056 | if (*arg == '$') /* register for relative memrange? */ | |
1057 | { | |
1058 | exp = parse_exp_1 (&arg, block_for_pc (addr), 1); | |
1059 | if (exp->elts[0].opcode != OP_REGISTER) | |
1060 | error ("Bad register operand for memrange: %s", start); | |
1061 | if (*arg++ != ',') | |
1062 | error ("missing comma for memrange: %s", start); | |
1063 | *typecode = exp->elts[1].longconst; | |
1064 | } | |
1065 | else | |
d9ba1c3f | 1066 | *typecode = -1; /* absolute memrange; */ |
8b9c29f5 | 1067 | |
d9ba1c3f MS |
1068 | exp = parse_exp_1 (&arg, 0, 1); |
1069 | *offset = value_as_pointer (evaluate_expression (exp)); | |
8b9c29f5 | 1070 | |
d9ba1c3f | 1071 | /* now parse the size */ |
8b9c29f5 MS |
1072 | if (*arg++ != ',') |
1073 | error ("missing comma for memrange: %s", start); | |
1074 | ||
d9ba1c3f MS |
1075 | exp = parse_exp_1 (&arg, 0, 0); |
1076 | *size = value_as_long (evaluate_expression (exp)); | |
8b9c29f5 | 1077 | |
8b9c29f5 MS |
1078 | if (info_verbose) |
1079 | printf_filtered ("Collecting memrange: (0x%x,0x%x,0x%x)\n", | |
1080 | *typecode, *offset, *size); | |
1081 | ||
1082 | return arg; | |
1083 | } | |
1084 | ||
1085 | /* compare memranges for qsort */ | |
6a02d201 MS |
1086 | static int |
1087 | memrange_cmp (a, b) | |
1088 | struct memrange *a, *b; | |
1089 | { | |
1090 | if (a->type < b->type) return -1; | |
1091 | if (a->type > b->type) return 1; | |
1092 | if (a->type == 0) | |
1093 | { | |
1094 | if ((bfd_vma) a->start < (bfd_vma) b->start) return -1; | |
1095 | if ((bfd_vma) a->start > (bfd_vma) b->start) return 1; | |
1096 | } | |
1097 | else | |
1098 | { | |
1099 | if (a->start < b->start) return -1; | |
1100 | if (a->start > b->start) return 1; | |
1101 | } | |
1102 | return 0; | |
1103 | } | |
1104 | ||
8b9c29f5 | 1105 | /* Sort the memrange list using qsort, and merge adjacent memranges */ |
6a02d201 MS |
1106 | static void |
1107 | memrange_sortmerge (memranges) | |
1108 | struct collection_list *memranges; | |
1109 | { | |
1110 | int a, b; | |
1111 | ||
1112 | qsort (memranges->list, memranges->next_memrange, | |
1113 | sizeof (struct memrange), memrange_cmp); | |
1114 | if (memranges->next_memrange > 0) | |
1115 | { | |
1116 | for (a = 0, b = 1; b < memranges->next_memrange; b++) | |
1117 | { | |
1118 | if (memranges->list[a].type == memranges->list[b].type && | |
1119 | memranges->list[b].start - memranges->list[a].end <= | |
1120 | MAX_REGISTER_VIRTUAL_SIZE) | |
1121 | { | |
5d187fd3 MS |
1122 | /* memrange b starts before memrange a ends; merge them. */ |
1123 | if (memranges->list[b].end > memranges->list[a].end) | |
1124 | memranges->list[a].end = memranges->list[b].end; | |
6a02d201 MS |
1125 | continue; /* next b, same a */ |
1126 | } | |
1127 | a++; /* next a */ | |
1128 | if (a != b) | |
1129 | memcpy (&memranges->list[a], &memranges->list[b], | |
1130 | sizeof (struct memrange)); | |
1131 | } | |
1132 | memranges->next_memrange = a + 1; | |
1133 | } | |
1134 | } | |
1135 | ||
8b9c29f5 | 1136 | /* Add a register to a collection list */ |
6a02d201 MS |
1137 | void |
1138 | add_register (collection, regno) | |
1139 | struct collection_list *collection; | |
1140 | unsigned long regno; | |
1141 | { | |
1142 | if (info_verbose) | |
1143 | printf_filtered ("collect register %d\n", regno); | |
1144 | if (regno > (8 * sizeof (collection->regs_mask))) | |
1145 | error ("Internal: register number %d too large for tracepoint", | |
1146 | regno); | |
1147 | collection->regs_mask [regno / 8] |= 1 << (regno % 8); | |
1148 | } | |
1149 | ||
8b9c29f5 | 1150 | /* Add a memrange to a collection list */ |
6a02d201 MS |
1151 | static void |
1152 | add_memrange (memranges, type, base, len) | |
1153 | struct collection_list *memranges; | |
1154 | int type; | |
1155 | bfd_signed_vma base; | |
1156 | unsigned long len; | |
1157 | { | |
1158 | if (info_verbose) | |
1159 | printf_filtered ("(%d,0x%x,%d)\n", type, base, len); | |
1160 | /* type: 0 == memory, n == basereg */ | |
1161 | memranges->list[memranges->next_memrange].type = type; | |
1162 | /* base: addr if memory, offset if reg relative. */ | |
1163 | memranges->list[memranges->next_memrange].start = base; | |
1164 | /* len: we actually save end (base + len) for convenience */ | |
1165 | memranges->list[memranges->next_memrange].end = base + len; | |
1166 | memranges->next_memrange++; | |
1167 | if (memranges->next_memrange >= memranges->listsize) | |
1168 | { | |
1169 | memranges->listsize *= 2; | |
1170 | memranges->list = xrealloc (memranges->list, | |
1171 | memranges->listsize); | |
1172 | } | |
1173 | ||
d9ba1c3f | 1174 | if (type != -1) /* better collect the base register! */ |
6a02d201 MS |
1175 | add_register (memranges, type); |
1176 | } | |
1177 | ||
8b9c29f5 | 1178 | /* Add a symbol to a collection list */ |
6a02d201 MS |
1179 | static void |
1180 | collect_symbol (collect, sym) | |
1181 | struct collection_list *collect; | |
1182 | struct symbol *sym; | |
1183 | { | |
1184 | unsigned long len; | |
1185 | unsigned long reg; | |
1186 | bfd_signed_vma offset; | |
1187 | ||
1188 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); | |
1189 | switch (SYMBOL_CLASS (sym)) { | |
1190 | default: | |
1191 | printf_filtered ("%s: don't know symbol class %d\n", | |
1192 | SYMBOL_NAME (sym), SYMBOL_CLASS (sym)); | |
1193 | break; | |
1194 | case LOC_CONST: | |
1195 | printf_filtered ("%s is constant, value is %d: will not be collected.\n", | |
1196 | SYMBOL_NAME (sym), SYMBOL_VALUE (sym)); | |
1197 | break; | |
1198 | case LOC_STATIC: | |
1199 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
1200 | if (info_verbose) | |
1201 | printf_filtered ("LOC_STATIC %s: collect %d bytes " | |
1202 | "at 0x%08x\n", | |
1203 | SYMBOL_NAME (sym), len, offset); | |
d9ba1c3f | 1204 | add_memrange (collect, -1, offset, len); /* 0 == memory */ |
6a02d201 MS |
1205 | break; |
1206 | case LOC_REGISTER: | |
1207 | case LOC_REGPARM: | |
1208 | reg = SYMBOL_VALUE (sym); | |
1209 | if (info_verbose) | |
1210 | printf_filtered ("LOC_REG[parm] %s: ", SYMBOL_NAME (sym)); | |
1211 | add_register (collect, reg); | |
1212 | break; | |
1213 | case LOC_ARG: | |
1214 | case LOC_REF_ARG: | |
1215 | printf_filtered ("Sorry, don't know how to do LOC_ARGs yet.\n"); | |
1216 | printf_filtered (" (will not collect %s)\n", | |
1217 | SYMBOL_NAME (sym)); | |
1218 | break; | |
1219 | case LOC_REGPARM_ADDR: | |
1220 | reg = SYMBOL_VALUE (sym); | |
1221 | offset = 0; | |
1222 | if (info_verbose) | |
1223 | { | |
1224 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %d bytes at offset %d from reg %d\n", | |
1225 | SYMBOL_NAME (sym), len, offset, reg); | |
1226 | } | |
1227 | add_memrange (collect, reg, offset, len); | |
1228 | break; | |
1229 | case LOC_LOCAL: | |
1230 | case LOC_LOCAL_ARG: | |
1231 | offset = SYMBOL_VALUE (sym); | |
1232 | reg = FP_REGNUM; | |
1233 | if (info_verbose) | |
1234 | { | |
1235 | printf_filtered ("LOC_LOCAL %s: Collect %d bytes at offset %d from frame ptr reg %d\n", | |
1236 | SYMBOL_NAME (sym), len, offset, reg); | |
1237 | } | |
1238 | add_memrange (collect, reg, offset, len); | |
1239 | break; | |
1240 | case LOC_BASEREG: | |
1241 | case LOC_BASEREG_ARG: | |
1242 | reg = SYMBOL_BASEREG (sym); | |
1243 | offset = SYMBOL_VALUE (sym); | |
1244 | if (info_verbose) | |
1245 | { | |
1246 | printf_filtered ("LOC_BASEREG %s: collect %d bytes at offset %d from basereg %d\n", | |
1247 | SYMBOL_NAME (sym), len, offset, reg); | |
1248 | } | |
1249 | add_memrange (collect, reg, offset, len); | |
1250 | break; | |
1251 | case LOC_UNRESOLVED: | |
1252 | printf_filtered ("Don't know LOC_UNRESOLVED %s\n", SYMBOL_NAME (sym)); | |
1253 | break; | |
1254 | case LOC_OPTIMIZED_OUT: | |
1255 | printf_filtered ("%s has been optimized out of existance.\n", | |
1256 | SYMBOL_NAME (sym)); | |
1257 | break; | |
1258 | } | |
1259 | } | |
1260 | ||
8b9c29f5 | 1261 | /* Add all locals (or args) symbols to collection list */ |
6a02d201 MS |
1262 | static void |
1263 | add_local_symbols (collect, pc, type) | |
1264 | struct collection_list *collect; | |
1265 | CORE_ADDR pc; | |
1266 | char type; | |
1267 | { | |
1268 | struct symbol *sym; | |
1269 | struct block *block; | |
1270 | int i, nsyms, count = 0; | |
1271 | ||
1272 | block = block_for_pc (pc); | |
1273 | while (block != 0) | |
1274 | { | |
1275 | nsyms = BLOCK_NSYMS (block); | |
1276 | for (i = 0; i < nsyms; i++) | |
1277 | { | |
1278 | sym = BLOCK_SYM (block, i); | |
1279 | switch (SYMBOL_CLASS (sym)) { | |
1280 | case LOC_LOCAL: | |
1281 | case LOC_STATIC: | |
1282 | case LOC_REGISTER: | |
1283 | case LOC_BASEREG: | |
1284 | if (type == 'L') /* collecting Locals */ | |
1285 | { | |
1286 | count++; | |
1287 | collect_symbol (collect, sym); | |
1288 | } | |
1289 | break; | |
1290 | case LOC_ARG: | |
1291 | case LOC_LOCAL_ARG: | |
1292 | case LOC_REF_ARG: | |
1293 | case LOC_REGPARM: | |
1294 | case LOC_REGPARM_ADDR: | |
1295 | case LOC_BASEREG_ARG: | |
1296 | if (type == 'A') /* collecting Arguments */ | |
1297 | { | |
1298 | count++; | |
1299 | collect_symbol (collect, sym); | |
1300 | } | |
1301 | } | |
1302 | } | |
1303 | if (BLOCK_FUNCTION (block)) | |
1304 | break; | |
1305 | else | |
1306 | block = BLOCK_SUPERBLOCK (block); | |
1307 | } | |
1308 | if (count == 0) | |
1309 | warning ("No %s found in scope.", type == 'L' ? "locals" : "args"); | |
1310 | } | |
1311 | ||
8b9c29f5 | 1312 | /* worker function */ |
6a02d201 MS |
1313 | static void |
1314 | clear_collection_list (list) | |
1315 | struct collection_list *list; | |
1316 | { | |
1317 | list->next_memrange = 0; | |
1318 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); | |
1319 | } | |
1320 | ||
8b9c29f5 | 1321 | /* reduce a collection list to string form (for gdb protocol) */ |
6a02d201 MS |
1322 | static char * |
1323 | stringify_collection_list (list, string) | |
1324 | struct collection_list *list; | |
1325 | char *string; | |
1326 | { | |
1327 | char *end = string; | |
1328 | long i; | |
1329 | ||
1330 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) | |
1331 | if (list->regs_mask[i] != 0) /* skip leading zeroes in regs_mask */ | |
1332 | break; | |
1333 | if (list->regs_mask[i] != 0) /* prepare to send regs_mask to the stub */ | |
1334 | { | |
1335 | if (info_verbose) | |
1336 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
1337 | *end++='R'; | |
1338 | for (; i >= 0; i--) | |
1339 | { | |
1340 | if (info_verbose) | |
1341 | printf_filtered ("%02X", list->regs_mask[i]); | |
1342 | sprintf (end, "%02X", list->regs_mask[i]); | |
1343 | end += 2; | |
1344 | } | |
1345 | } | |
1346 | if (info_verbose) | |
1347 | printf_filtered ("\n"); | |
1348 | if (list->next_memrange > 0 && info_verbose) | |
1349 | printf_filtered ("Collecting memranges: \n"); | |
1350 | for (i = 0; i < list->next_memrange; i++) | |
1351 | { | |
1352 | if (info_verbose) | |
1353 | printf_filtered ("(%d, 0x%x, %d)\n", | |
1354 | list->list[i].type, | |
1355 | list->list[i].start, | |
1356 | list->list[i].end - list->list[i].start); | |
1357 | sprintf (end, "M%X,%X,%X", | |
1358 | list->list[i].type, | |
1359 | list->list[i].start, | |
1360 | list->list[i].end - list->list[i].start); | |
1361 | end += strlen (end); | |
1362 | } | |
1363 | if (end == string) | |
1364 | return NULL; | |
1365 | else | |
1366 | return string; | |
1367 | } | |
1368 | ||
8b9c29f5 | 1369 | /* render all actions into gdb protocol */ |
6a02d201 MS |
1370 | static void |
1371 | encode_actions (t, tdp_actions, step_count, stepping_actions) | |
1372 | struct tracepoint *t; | |
1373 | char **tdp_actions; | |
1374 | unsigned long *step_count; | |
1375 | char **stepping_actions; | |
1376 | { | |
6a02d201 | 1377 | static char tdp_buff[2048], step_buff[2048]; |
6a02d201 | 1378 | char *action_exp; |
728c7f37 MS |
1379 | struct expression *exp; |
1380 | struct action_line *action; | |
6a02d201 MS |
1381 | bfd_signed_vma offset; |
1382 | long i; | |
d9ba1c3f | 1383 | value_ptr tempval; |
728c7f37 MS |
1384 | struct collection_list *collect; |
1385 | struct cmd_list_element *cmd; | |
6a02d201 MS |
1386 | |
1387 | clear_collection_list (&tracepoint_list); | |
1388 | clear_collection_list (&stepping_list); | |
1389 | collect = &tracepoint_list; | |
1390 | ||
1391 | *tdp_actions = NULL; | |
1392 | *stepping_actions = NULL; | |
1393 | ||
1394 | for (action = t->actions; action; action = action->next) | |
1395 | { | |
1396 | action_exp = action->action; | |
1397 | while (isspace (*action_exp)) | |
1398 | action_exp++; | |
1399 | ||
5d187fd3 MS |
1400 | if (*action_exp == '#') /* comment line */ |
1401 | return; | |
1402 | ||
728c7f37 MS |
1403 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
1404 | if (cmd == 0) | |
1405 | error ("Bad action list item: %s", action_exp); | |
1406 | ||
1407 | if (cmd->function.cfunc == collect_pseudocommand) | |
6a02d201 | 1408 | { |
6a02d201 MS |
1409 | do { /* repeat over a comma-separated list */ |
1410 | while (isspace (*action_exp)) | |
1411 | action_exp++; | |
1412 | ||
1413 | if (0 == strncasecmp ("$reg", action_exp, 4)) | |
1414 | { | |
1415 | for (i = 0; i < NUM_REGS; i++) | |
1416 | add_register (collect, i); | |
6156728b | 1417 | action_exp = strchr (action_exp, ','); /* more? */ |
6a02d201 MS |
1418 | } |
1419 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1420 | { | |
1421 | add_local_symbols (collect, t->address, 'A'); | |
6156728b | 1422 | action_exp = strchr (action_exp, ','); /* more? */ |
6a02d201 MS |
1423 | } |
1424 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1425 | { | |
1426 | add_local_symbols (collect, t->address, 'L'); | |
6156728b MS |
1427 | action_exp = strchr (action_exp, ','); /* more? */ |
1428 | } | |
1429 | else if (action_exp[0] == '$' && | |
1430 | action_exp[1] == '(') /* literal memrange */ | |
1431 | { | |
1432 | long typecode, size; | |
1433 | bfd_signed_vma offset; | |
1434 | ||
1435 | action_exp = parse_and_eval_memrange (action_exp, | |
1436 | t->address, | |
1437 | &typecode, | |
1438 | &offset, | |
1439 | &size); | |
1440 | add_memrange (collect, typecode, offset, size); | |
6a02d201 MS |
1441 | } |
1442 | else | |
1443 | { | |
1444 | unsigned long addr, len; | |
1445 | ||
1446 | exp = parse_exp_1 (&action_exp, block_for_pc (t->address), 1); | |
1447 | switch (exp->elts[0].opcode) { | |
1448 | case OP_REGISTER: | |
1449 | i = exp->elts[1].longconst; | |
1450 | if (info_verbose) | |
1451 | printf_filtered ("OP_REGISTER: "); | |
1452 | add_register (collect, i); | |
1453 | break; | |
d9ba1c3f MS |
1454 | |
1455 | case UNOP_MEMVAL: | |
1456 | /* safe because we know it's a simple expression */ | |
1457 | tempval = evaluate_expression (exp); | |
1458 | addr = VALUE_ADDRESS (tempval) + VALUE_OFFSET (tempval); | |
1459 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); | |
1460 | add_memrange (collect, -1, addr, len); | |
1461 | break; | |
1462 | ||
6a02d201 MS |
1463 | case OP_VAR_VALUE: |
1464 | collect_symbol (collect, exp->elts[2].symbol); | |
1465 | break; | |
1466 | #if 0 | |
1467 | case OP_LONG: | |
1468 | addr = exp->elts[2].longconst; | |
1469 | if (*action_exp == ':') | |
1470 | { | |
1471 | exp = parse_exp_1 (&action_exp, | |
1472 | block_for_pc (t->address), | |
1473 | 1); | |
1474 | if (exp->elts[0].opcode == OP_LONG) | |
1475 | len = exp->elts[2].longconst; | |
1476 | else | |
1477 | error ("length field requires a literal long const"); | |
1478 | } | |
1479 | else | |
1480 | len = 4; | |
1481 | ||
d9ba1c3f | 1482 | add_memrange (collect, -1, addr, len); |
6a02d201 MS |
1483 | break; |
1484 | #endif | |
1485 | } | |
1486 | } | |
1487 | } while (action_exp && *action_exp++ == ','); | |
1488 | } | |
728c7f37 | 1489 | else if (cmd->function.cfunc == while_stepping_pseudocommand) |
6a02d201 MS |
1490 | { |
1491 | collect = &stepping_list; | |
1492 | } | |
728c7f37 | 1493 | else if (cmd->function.cfunc == end_actions_pseudocommand) |
6a02d201 MS |
1494 | { |
1495 | if (collect == &stepping_list) /* end stepping actions */ | |
1496 | collect = &tracepoint_list; | |
1497 | else | |
1498 | break; /* end tracepoint actions */ | |
1499 | } | |
1500 | } | |
1501 | memrange_sortmerge (&tracepoint_list); | |
1502 | memrange_sortmerge (&stepping_list); | |
1503 | ||
1504 | *tdp_actions = stringify_collection_list (&tracepoint_list, &tdp_buff); | |
1505 | *stepping_actions = stringify_collection_list (&stepping_list, &step_buff); | |
1506 | } | |
1507 | ||
1508 | static char target_buf[2048]; | |
1509 | ||
8b9c29f5 MS |
1510 | /* tstart command: |
1511 | ||
1512 | Tell target to lear any previous trace experiment. | |
1513 | Walk the list of tracepoints, and send them (and their actions) | |
1514 | to the target. If no errors, | |
1515 | Tell target to start a new trace experiment. */ | |
1516 | ||
6a02d201 MS |
1517 | static void |
1518 | trace_start_command (args, from_tty) | |
1519 | char *args; | |
1520 | int from_tty; | |
1521 | { /* STUB_COMM MOSTLY_IMPLEMENTED */ | |
1522 | struct tracepoint *t; | |
1523 | char buf[2048]; | |
1524 | char *tdp_actions; | |
1525 | char *stepping_actions; | |
1526 | unsigned long step_count; | |
1527 | ||
1528 | dont_repeat (); /* like "run", dangerous to repeat accidentally */ | |
1529 | ||
1530 | if (target_is_remote ()) | |
1531 | { | |
1532 | putpkt ("QTinit"); | |
1533 | remote_get_noisy_reply (target_buf); | |
1534 | if (strcmp (target_buf, "OK")) | |
1535 | error ("Target does not support this command."); | |
1536 | ||
1537 | ALL_TRACEPOINTS (t) | |
1538 | { | |
1539 | int ss_count; /* if actions include singlestepping */ | |
1540 | int disable_mask; /* ??? */ | |
1541 | int enable_mask; /* ??? */ | |
1542 | ||
1543 | sprintf (buf, "QTDP:%x:%x:%c:%x:%x", t->number, t->address, | |
1544 | t->enabled == enabled ? 'E' : 'D', | |
1545 | t->step_count, t->pass_count); | |
1546 | if (t->actions) | |
1547 | { | |
1548 | encode_actions (t, &tdp_actions, &step_count, &stepping_actions); | |
1549 | /* do_single_steps (t); */ | |
1550 | if (tdp_actions) | |
1551 | { | |
1552 | if (strlen (buf) + strlen (tdp_actions) >= sizeof (buf)) | |
1553 | error ("Actions for tracepoint %d too complex; " | |
1554 | "please simplify.", t->number); | |
1555 | strcat (buf, tdp_actions); | |
1556 | } | |
1557 | if (stepping_actions) | |
1558 | { | |
1559 | strcat (buf, "S"); | |
1560 | if (strlen (buf) + strlen (stepping_actions) >= sizeof (buf)) | |
1561 | error ("Actions for tracepoint %d too complex; " | |
1562 | "please simplify.", t->number); | |
1563 | strcat (buf, stepping_actions); | |
1564 | } | |
1565 | } | |
1566 | putpkt (buf); | |
1567 | remote_get_noisy_reply (target_buf); | |
1568 | if (strcmp (target_buf, "OK")) | |
1569 | error ("Target does not support tracepoints."); | |
1570 | } | |
1571 | putpkt ("QTStart"); | |
1572 | remote_get_noisy_reply (target_buf); | |
1573 | if (strcmp (target_buf, "OK")) | |
1574 | error ("Bogus reply from target: %s", target_buf); | |
6156728b MS |
1575 | set_traceframe_num (-1); /* all old traceframes invalidated */ |
1576 | set_tracepoint_num (-1); | |
1577 | set_traceframe_context(-1); | |
6a02d201 MS |
1578 | } |
1579 | else | |
1580 | printf_filtered ("Trace can only be run on remote targets.\n"); | |
1581 | } | |
1582 | ||
8b9c29f5 | 1583 | /* tstop command */ |
6a02d201 MS |
1584 | static void |
1585 | trace_stop_command (args, from_tty) | |
1586 | char *args; | |
1587 | int from_tty; | |
1588 | { /* STUB_COMM IS_IMPLEMENTED */ | |
1589 | if (target_is_remote ()) | |
1590 | { | |
1591 | putpkt ("QTStop"); | |
1592 | remote_get_noisy_reply (target_buf); | |
1593 | if (strcmp (target_buf, "OK")) | |
1594 | error ("Bogus reply from target: %s", target_buf); | |
1595 | } | |
1596 | else | |
1597 | error ("Trace can only be run on remote targets."); | |
1598 | } | |
1599 | ||
8b9c29f5 | 1600 | /* tstatus command */ |
6a02d201 MS |
1601 | static void |
1602 | trace_status_command (args, from_tty) | |
1603 | char *args; | |
1604 | int from_tty; | |
1605 | { /* STUB_COMM IS_IMPLEMENTED */ | |
1606 | if (target_is_remote ()) | |
1607 | { | |
1608 | putpkt ("qTStatus"); | |
1609 | remote_get_noisy_reply (target_buf); | |
1610 | if (strcmp (target_buf, "OK")) | |
1611 | error ("Bogus reply from target: %s", target_buf); | |
1612 | } | |
1613 | else | |
1614 | error ("Trace can only be run on remote targets."); | |
1615 | } | |
1616 | ||
8b9c29f5 | 1617 | /* Worker function for the various flavors of the tfind command */ |
6156728b | 1618 | static void |
c677110c MS |
1619 | finish_tfind_command (msg, from_tty) |
1620 | char *msg; | |
6156728b MS |
1621 | int from_tty; |
1622 | { | |
1623 | int target_frameno = -1, target_tracept = -1; | |
c677110c MS |
1624 | CORE_ADDR old_frame_addr; |
1625 | struct symbol *old_func; | |
1626 | char *reply; | |
1627 | ||
1628 | old_frame_addr = FRAME_FP (get_current_frame ()); | |
1629 | old_func = find_pc_function (read_pc ()); | |
1630 | ||
1631 | putpkt (msg); | |
1632 | reply = remote_get_noisy_reply (msg); | |
6156728b MS |
1633 | |
1634 | while (reply && *reply) | |
1635 | switch (*reply) { | |
1636 | case 'F': | |
1637 | if ((target_frameno = strtol (++reply, &reply, 16)) == -1) | |
8b9c29f5 MS |
1638 | { |
1639 | /* A request for a non-existant trace frame has failed. | |
1640 | Our response will be different, depending on FROM_TTY: | |
1641 | ||
1642 | If FROM_TTY is true, meaning that this command was | |
1643 | typed interactively by the user, then give an error | |
1644 | and DO NOT change the state of traceframe_number etc. | |
1645 | ||
1646 | However if FROM_TTY is false, meaning that we're either | |
1647 | in a script, a loop, or a user-defined command, then | |
1648 | DON'T give an error, but DO change the state of | |
1649 | traceframe_number etc. to invalid. | |
1650 | ||
1651 | The rationalle is that if you typed the command, you | |
1652 | might just have committed a typo or something, and you'd | |
1653 | like to NOT lose your current debugging state. However | |
1654 | if you're in a user-defined command or especially in a | |
1655 | loop, then you need a way to detect that the command | |
1656 | failed WITHOUT aborting. This allows you to write | |
1657 | scripts that search thru the trace buffer until the end, | |
1658 | and then continue on to do something else. */ | |
1659 | ||
1660 | if (from_tty) | |
1661 | error ("Target failed to find requested trace frame."); | |
1662 | else | |
1663 | { | |
1664 | if (info_verbose) | |
1665 | printf_filtered ("End of trace buffer.\n"); | |
1666 | /* The following will not recurse, since it's special-cased */ | |
1667 | trace_find_command ("-1", from_tty); | |
c677110c MS |
1668 | reply = NULL; /* break out of loop, |
1669 | (avoid recursive nonsense) */ | |
8b9c29f5 MS |
1670 | } |
1671 | } | |
6156728b MS |
1672 | break; |
1673 | case 'T': | |
1674 | if ((target_tracept = strtol (++reply, &reply, 16)) == -1) | |
1675 | error ("Target failed to find requested trace frame."); | |
1676 | break; | |
1677 | case 'O': /* "OK"? */ | |
1678 | if (reply[1] == 'K' && reply[2] == '\0') | |
1679 | reply += 2; | |
1680 | else | |
1681 | error ("Bogus reply from target: %s", reply); | |
1682 | break; | |
1683 | default: | |
1684 | error ("Bogus reply from target: %s", reply); | |
1685 | } | |
1686 | ||
1687 | flush_cached_frames (); | |
1688 | registers_changed (); | |
1689 | select_frame (get_current_frame (), 0); | |
1690 | set_traceframe_num (target_frameno); | |
1691 | set_tracepoint_num (target_tracept); | |
c677110c MS |
1692 | if (target_frameno == -1) |
1693 | set_traceframe_context (-1); | |
1694 | else | |
1695 | set_traceframe_context (read_pc ()); | |
6156728b MS |
1696 | |
1697 | if (from_tty) | |
c677110c MS |
1698 | { |
1699 | int source_only; | |
1700 | ||
99fa2de0 MS |
1701 | /* NOTE: in immitation of the step command, try to determine |
1702 | whether we have made a transition from one function to another. | |
1703 | If so, we'll print the "stack frame" (ie. the new function and | |
1704 | it's arguments) -- otherwise we'll just show the new source line. | |
1705 | ||
1706 | This determination is made by checking (1) whether the current | |
1707 | function has changed, and (2) whether the current FP has changed. | |
1708 | Hack: if the FP wasn't collected, either at the current or the | |
1709 | previous frame, assume that the FP has NOT changed. */ | |
1710 | ||
1711 | if (old_func == find_pc_function (read_pc ()) && | |
1712 | (old_frame_addr == 0 || | |
1713 | FRAME_FP (get_current_frame ()) == 0 || | |
1714 | old_frame_addr == FRAME_FP (get_current_frame ()))) | |
c677110c MS |
1715 | source_only = -1; |
1716 | else | |
1717 | source_only = 1; | |
1718 | ||
1719 | print_stack_frame (selected_frame, selected_frame_level, source_only); | |
1720 | do_displays (); | |
1721 | } | |
6156728b MS |
1722 | } |
1723 | ||
1724 | /* trace_find_command takes a trace frame number n, | |
1725 | sends "QTFrame:<n>" to the target, | |
1726 | and accepts a reply that may contain several optional pieces | |
1727 | of information: a frame number, a tracepoint number, and an | |
1728 | indication of whether this is a trap frame or a stepping frame. | |
1729 | ||
1730 | The minimal response is just "OK" (which indicates that the | |
1731 | target does not give us a frame number or a tracepoint number). | |
1732 | Instead of that, the target may send us a string containing | |
1733 | any combination of: | |
1734 | F<hexnum> (gives the selected frame number) | |
1735 | T<hexnum> (gives the selected tracepoint number) | |
1736 | */ | |
1737 | ||
8b9c29f5 | 1738 | /* tfind command */ |
6a02d201 MS |
1739 | static void |
1740 | trace_find_command (args, from_tty) | |
1741 | char *args; | |
1742 | int from_tty; | |
1743 | { /* STUB_COMM PART_IMPLEMENTED */ | |
1744 | /* this should only be called with a numeric argument */ | |
6156728b MS |
1745 | int frameno = -1; |
1746 | int target_frameno = -1, target_tracept = -1, target_stepfrm = 0; | |
1747 | char *tmp; | |
1748 | ||
6a02d201 MS |
1749 | if (target_is_remote ()) |
1750 | { | |
1751 | if (args == 0 || *args == 0) | |
6156728b MS |
1752 | { /* TFIND with no args means find NEXT trace frame. */ |
1753 | if (traceframe_number == -1) | |
1754 | frameno = 0; /* "next" is first one */ | |
1755 | else | |
1756 | frameno = traceframe_number + 1; | |
1757 | } | |
1758 | else if (0 == strcmp (args, "-")) | |
1759 | { | |
1760 | if (traceframe_number == -1) | |
1761 | error ("not debugging trace buffer"); | |
bf1aae13 | 1762 | else if (from_tty && traceframe_number == 0) |
6156728b MS |
1763 | error ("already at start of trace buffer"); |
1764 | ||
1765 | frameno = traceframe_number - 1; | |
1766 | } | |
6a02d201 | 1767 | else |
6156728b | 1768 | frameno = parse_and_eval_address (args); |
6a02d201 | 1769 | |
6156728b | 1770 | sprintf (target_buf, "QTFrame:%x", frameno); |
c677110c | 1771 | #if 0 |
6156728b MS |
1772 | putpkt (target_buf); |
1773 | tmp = remote_get_noisy_reply (target_buf); | |
6a02d201 | 1774 | |
6156728b MS |
1775 | if (frameno == -1) /* end trace debugging */ |
1776 | { /* hopefully the stub has complied! */ | |
c677110c | 1777 | if (0 != strcmp (tmp, "OK")) |
6156728b MS |
1778 | error ("Bogus response from target: %s", tmp); |
1779 | ||
c677110c | 1780 | finish_tfind_command (NULL, from_tty); |
6156728b MS |
1781 | } |
1782 | else | |
1783 | finish_tfind_command (tmp, from_tty); | |
c677110c MS |
1784 | #else |
1785 | finish_tfind_command (target_buf, from_tty); | |
1786 | #endif | |
6a02d201 MS |
1787 | } |
1788 | else | |
1789 | error ("Trace can only be run on remote targets."); | |
1790 | } | |
1791 | ||
8b9c29f5 | 1792 | /* tfind end */ |
6156728b MS |
1793 | static void |
1794 | trace_find_end_command (args, from_tty) | |
1795 | char *args; | |
1796 | int from_tty; | |
1797 | { | |
1798 | trace_find_command ("-1", from_tty); | |
1799 | } | |
1800 | ||
8b9c29f5 | 1801 | /* tfind none */ |
6156728b MS |
1802 | static void |
1803 | trace_find_none_command (args, from_tty) | |
1804 | char *args; | |
1805 | int from_tty; | |
1806 | { | |
1807 | trace_find_command ("-1", from_tty); | |
1808 | } | |
1809 | ||
8b9c29f5 | 1810 | /* tfind start */ |
6156728b MS |
1811 | static void |
1812 | trace_find_start_command (args, from_tty) | |
1813 | char *args; | |
1814 | int from_tty; | |
1815 | { | |
1816 | trace_find_command ("0", from_tty); | |
1817 | } | |
1818 | ||
8b9c29f5 | 1819 | /* tfind pc command */ |
6a02d201 MS |
1820 | static void |
1821 | trace_find_pc_command (args, from_tty) | |
1822 | char *args; | |
1823 | int from_tty; | |
1824 | { /* STUB_COMM PART_IMPLEMENTED */ | |
1825 | CORE_ADDR pc; | |
1826 | int target_frameno; | |
6156728b | 1827 | char *tmp; |
6a02d201 MS |
1828 | |
1829 | if (target_is_remote ()) | |
1830 | { | |
1831 | if (args == 0 || *args == 0) | |
6156728b MS |
1832 | pc = read_pc (); /* default is current pc */ |
1833 | else | |
1834 | pc = parse_and_eval_address (args); | |
6a02d201 | 1835 | |
6156728b | 1836 | sprintf (target_buf, "QTFrame:pc:%x", pc); |
c677110c | 1837 | #if 0 |
6156728b MS |
1838 | putpkt (target_buf); |
1839 | tmp = remote_get_noisy_reply (target_buf); | |
6a02d201 | 1840 | |
6156728b | 1841 | finish_tfind_command (tmp, from_tty); |
c677110c MS |
1842 | #else |
1843 | finish_tfind_command (target_buf, from_tty); | |
1844 | #endif | |
6a02d201 MS |
1845 | } |
1846 | else | |
1847 | error ("Trace can only be run on remote targets."); | |
1848 | } | |
1849 | ||
8b9c29f5 | 1850 | /* tfind tracepoint command */ |
6a02d201 | 1851 | static void |
6156728b | 1852 | trace_find_tracepoint_command (args, from_tty) |
6a02d201 MS |
1853 | char *args; |
1854 | int from_tty; | |
1855 | { /* STUB_COMM PART_IMPLEMENTED */ | |
1856 | int target_frameno, tdp; | |
1857 | char buf[40], *tmp; | |
1858 | ||
1859 | if (target_is_remote ()) | |
1860 | { | |
1861 | if (args == 0 || *args == 0) | |
6156728b MS |
1862 | if (tracepoint_number == -1) |
1863 | error ("No current tracepoint -- please supply an argument."); | |
1864 | else | |
1865 | tdp = tracepoint_number; /* default is current TDP */ | |
1866 | else | |
1867 | tdp = parse_and_eval_address (args); | |
6a02d201 | 1868 | |
6156728b | 1869 | sprintf (target_buf, "QTFrame:tdp:%x", tdp); |
c677110c | 1870 | #if 0 |
6156728b MS |
1871 | putpkt (target_buf); |
1872 | tmp = remote_get_noisy_reply (target_buf); | |
6a02d201 | 1873 | |
6156728b | 1874 | finish_tfind_command (tmp, from_tty); |
c677110c MS |
1875 | #else |
1876 | finish_tfind_command (target_buf, from_tty); | |
1877 | #endif | |
6a02d201 MS |
1878 | } |
1879 | else | |
1880 | error ("Trace can only be run on remote targets."); | |
1881 | } | |
1882 | ||
6156728b | 1883 | /* TFIND LINE command: |
8b9c29f5 MS |
1884 | |
1885 | This command will take a sourceline for argument, just like BREAK | |
1886 | or TRACE (ie. anything that "decode_line_1" can handle). | |
1887 | ||
1888 | With no argument, this command will find the next trace frame | |
1889 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
6156728b | 1890 | |
6a02d201 | 1891 | static void |
6156728b | 1892 | trace_find_line_command (args, from_tty) |
6a02d201 MS |
1893 | char *args; |
1894 | int from_tty; | |
1895 | { /* STUB_COMM PART_IMPLEMENTED */ | |
6156728b MS |
1896 | static CORE_ADDR start_pc, end_pc; |
1897 | struct symtabs_and_lines sals; | |
1898 | struct symtab_and_line sal; | |
6a02d201 | 1899 | int target_frameno; |
6156728b MS |
1900 | char *tmp; |
1901 | struct cleanup *old_chain; | |
6a02d201 MS |
1902 | |
1903 | if (target_is_remote ()) | |
1904 | { | |
6156728b MS |
1905 | if (args == 0 || *args == 0) |
1906 | { | |
1907 | sal = find_pc_line ((get_current_frame ())->pc, 0); | |
1908 | sals.nelts = 1; | |
1909 | sals.sals = (struct symtab_and_line *) | |
1910 | xmalloc (sizeof (struct symtab_and_line)); | |
1911 | sals.sals[0] = sal; | |
6a02d201 | 1912 | } |
6156728b | 1913 | else |
6a02d201 | 1914 | { |
6156728b MS |
1915 | sals = decode_line_spec (args, 1); |
1916 | sal = sals.sals[0]; | |
6a02d201 MS |
1917 | } |
1918 | ||
6156728b MS |
1919 | old_chain = make_cleanup (free, sals.sals); |
1920 | if (sal.symtab == 0) | |
1921 | { | |
1922 | printf_filtered ("TFIND: No line number information available"); | |
1923 | if (sal.pc != 0) | |
1924 | { | |
1925 | /* This is useful for "info line *0x7f34". If we can't tell the | |
1926 | user about a source line, at least let them have the symbolic | |
1927 | address. */ | |
1928 | printf_filtered (" for address "); | |
1929 | wrap_here (" "); | |
1930 | print_address (sal.pc, gdb_stdout); | |
1931 | printf_filtered (";\n -- will attempt to find by PC. \n"); | |
1932 | } | |
1933 | else | |
1934 | { | |
1935 | printf_filtered (".\n"); | |
1936 | return; /* no line, no PC; what can we do? */ | |
1937 | } | |
1938 | } | |
1939 | else if (sal.line > 0 | |
1940 | && find_line_pc_range (sal, &start_pc, &end_pc)) | |
1941 | { | |
1942 | if (start_pc == end_pc) | |
1943 | { | |
1944 | printf_filtered ("Line %d of \"%s\"", | |
1945 | sal.line, sal.symtab->filename); | |
1946 | wrap_here (" "); | |
1947 | printf_filtered (" is at address "); | |
1948 | print_address (start_pc, gdb_stdout); | |
1949 | wrap_here (" "); | |
1950 | printf_filtered (" but contains no code.\n"); | |
1951 | sal = find_pc_line (start_pc, 0); | |
1952 | if (sal.line > 0 && | |
1953 | find_line_pc_range (sal, &start_pc, &end_pc) && | |
1954 | start_pc != end_pc) | |
1955 | printf_filtered ("Attempting to find line %d instead.\n", | |
1956 | sal.line); | |
1957 | else | |
1958 | error ("Cannot find a good line."); | |
1959 | } | |
1960 | } | |
1961 | else | |
1962 | /* Is there any case in which we get here, and have an address | |
1963 | which the user would want to see? If we have debugging symbols | |
1964 | and no line numbers? */ | |
1965 | error ("Line number %d is out of range for \"%s\".\n", | |
1966 | sal.line, sal.symtab->filename); | |
1967 | ||
1968 | if (args && *args) /* find within range of stated line */ | |
1969 | sprintf (target_buf, "QTFrame:range:%x:%x", start_pc, end_pc - 1); | |
1970 | else /* find OUTSIDE OF range of CURRENT line */ | |
1971 | sprintf (target_buf, "QTFrame:outside:%x:%x", start_pc, end_pc - 1); | |
c677110c | 1972 | #if 0 |
6156728b MS |
1973 | putpkt (target_buf); |
1974 | tmp = remote_get_noisy_reply (target_buf); | |
1975 | ||
1976 | finish_tfind_command (tmp, from_tty); | |
c677110c MS |
1977 | #else |
1978 | finish_tfind_command (target_buf, from_tty); | |
1979 | #endif | |
6156728b | 1980 | do_cleanups (old_chain); |
6a02d201 MS |
1981 | } |
1982 | else | |
1983 | error ("Trace can only be run on remote targets."); | |
1984 | } | |
1985 | ||
8b9c29f5 | 1986 | /* tfind range command */ |
6a02d201 | 1987 | static void |
6156728b | 1988 | trace_find_range_command (args, from_tty) |
6a02d201 MS |
1989 | char *args; |
1990 | int from_tty; | |
1991 | { /* STUB_COMM PART_IMPLEMENTED */ | |
6156728b | 1992 | static CORE_ADDR start, stop; |
6a02d201 | 1993 | int target_frameno; |
6156728b | 1994 | char *tmp; |
6a02d201 MS |
1995 | |
1996 | if (target_is_remote ()) | |
1997 | { | |
6156728b | 1998 | if (args == 0 || *args == 0) |
6a02d201 | 1999 | { /* XXX FIXME: what should default behavior be? */ |
6156728b | 2000 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); |
6a02d201 MS |
2001 | return; |
2002 | } | |
2003 | ||
6156728b | 2004 | if (0 != (tmp = strchr (args, ',' ))) |
6a02d201 | 2005 | { |
6156728b MS |
2006 | *tmp++ = '\0'; /* terminate start address */ |
2007 | while (isspace (*tmp)) | |
2008 | tmp++; | |
2009 | start = parse_and_eval_address (args); | |
2010 | stop = parse_and_eval_address (tmp); | |
2011 | } | |
2012 | else | |
2013 | { /* no explicit end address? */ | |
2014 | start = parse_and_eval_address (args); | |
2015 | stop = start + 1; /* ??? */ | |
6a02d201 MS |
2016 | } |
2017 | ||
6156728b | 2018 | sprintf (target_buf, "QTFrame:range:%x:%x", start, stop); |
c677110c | 2019 | #if 0 |
6156728b MS |
2020 | putpkt (target_buf); |
2021 | tmp = remote_get_noisy_reply (target_buf); | |
6a02d201 | 2022 | |
6156728b | 2023 | finish_tfind_command (tmp, from_tty); |
c677110c MS |
2024 | #else |
2025 | finish_tfind_command (target_buf, from_tty); | |
2026 | #endif | |
6a02d201 MS |
2027 | } |
2028 | else | |
2029 | error ("Trace can only be run on remote targets."); | |
2030 | } | |
2031 | ||
8b9c29f5 | 2032 | /* tfind outside command */ |
6a02d201 | 2033 | static void |
6156728b | 2034 | trace_find_outside_command (args, from_tty) |
6a02d201 MS |
2035 | char *args; |
2036 | int from_tty; | |
6156728b MS |
2037 | { /* STUB_COMM PART_IMPLEMENTED */ |
2038 | CORE_ADDR start, stop; | |
2039 | int target_frameno; | |
2040 | char *tmp; | |
2041 | ||
2042 | if (target_is_remote ()) | |
6a02d201 | 2043 | { |
6156728b MS |
2044 | if (args == 0 || *args == 0) |
2045 | { /* XXX FIXME: what should default behavior be? */ | |
2046 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); | |
2047 | return; | |
2048 | } | |
6a02d201 | 2049 | |
6156728b MS |
2050 | if (0 != (tmp = strchr (args, ',' ))) |
2051 | { | |
2052 | *tmp++ = '\0'; /* terminate start address */ | |
2053 | while (isspace (*tmp)) | |
2054 | tmp++; | |
2055 | start = parse_and_eval_address (args); | |
2056 | stop = parse_and_eval_address (tmp); | |
2057 | } | |
2058 | else | |
2059 | { /* no explicit end address? */ | |
2060 | start = parse_and_eval_address (args); | |
2061 | stop = start + 1; /* ??? */ | |
2062 | } | |
2063 | ||
2064 | sprintf (target_buf, "QTFrame:outside:%x:%x", start, stop); | |
c677110c | 2065 | #if 0 |
6156728b MS |
2066 | putpkt (target_buf); |
2067 | tmp = remote_get_noisy_reply (target_buf); | |
2068 | ||
2069 | finish_tfind_command (tmp, from_tty); | |
c677110c MS |
2070 | #else |
2071 | finish_tfind_command (target_buf, from_tty); | |
2072 | #endif | |
6156728b | 2073 | } |
6a02d201 | 2074 | else |
6156728b | 2075 | error ("Trace can only be run on remote targets."); |
6a02d201 MS |
2076 | } |
2077 | ||
8b9c29f5 | 2078 | /* save-tracepoints command */ |
6a02d201 MS |
2079 | static void |
2080 | tracepoint_save_command (args, from_tty) | |
2081 | char *args; | |
2082 | int from_tty; | |
2083 | { | |
2084 | struct tracepoint *tp; | |
2085 | struct action_line *line; | |
2086 | FILE *fp; | |
2087 | char *i1 = " ", *i2 = " "; | |
2088 | char *indent, *actionline; | |
2089 | ||
2090 | if (args == 0 || *args == 0) | |
2091 | error ("Argument required (file name in which to save tracepoints"); | |
2092 | ||
2093 | if (tracepoint_chain == 0) | |
2094 | { | |
2095 | warning ("save-tracepoints: no tracepoints to save.\n"); | |
2096 | return; | |
2097 | } | |
2098 | ||
2099 | if (!(fp = fopen (args, "w"))) | |
2100 | error ("Unable to open file '%s' for saving tracepoints"); | |
2101 | ||
2102 | ALL_TRACEPOINTS (tp) | |
2103 | { | |
2104 | if (tp->addr_string) | |
2105 | fprintf (fp, "trace %s\n", tp->addr_string); | |
2106 | else | |
2107 | fprintf (fp, "trace *0x%x\n", tp->address); | |
2108 | ||
2109 | if (tp->pass_count) | |
2110 | fprintf (fp, " passcount %d\n", tp->pass_count); | |
2111 | ||
2112 | if (tp->actions) | |
2113 | { | |
2114 | fprintf (fp, " actions\n"); | |
2115 | indent = i1; | |
2116 | for (line = tp->actions; line; line = line->next) | |
2117 | { | |
728c7f37 MS |
2118 | struct cmd_list_element *cmd; |
2119 | ||
6a02d201 MS |
2120 | actionline = line->action; |
2121 | while (isspace(*actionline)) | |
2122 | actionline++; | |
2123 | ||
2124 | fprintf (fp, "%s%s\n", indent, actionline); | |
5d187fd3 MS |
2125 | if (*actionline != '#') /* skip for comment lines */ |
2126 | { | |
2127 | cmd = lookup_cmd (&actionline, cmdlist, "", -1, 1); | |
2128 | if (cmd == 0) | |
2129 | error ("Bad action list item: %s", actionline); | |
2130 | if (cmd->function.cfunc == while_stepping_pseudocommand) | |
2131 | indent = i2; | |
2132 | else if (cmd->function.cfunc == end_actions_pseudocommand) | |
2133 | indent = i1; | |
2134 | } | |
6a02d201 MS |
2135 | } |
2136 | } | |
2137 | } | |
2138 | fclose (fp); | |
2139 | if (from_tty) | |
2140 | printf_filtered ("Tracepoints saved to file '%s'.\n", args); | |
2141 | return; | |
2142 | } | |
2143 | ||
8b9c29f5 | 2144 | /* info scope command: list the locals for a scope. */ |
6a02d201 MS |
2145 | static void |
2146 | scope_info (args, from_tty) | |
2147 | char *args; | |
2148 | int from_tty; | |
2149 | { | |
2150 | struct symtab_and_line sal; | |
2151 | struct symtabs_and_lines sals; | |
2152 | struct symbol *sym; | |
6156728b | 2153 | struct minimal_symbol *msym; |
6a02d201 | 2154 | struct block *block; |
6156728b | 2155 | char **canonical, *symname, *save_args = args; |
6a02d201 | 2156 | int i, nsyms, count = 0; |
6a02d201 MS |
2157 | |
2158 | if (args == 0 || *args == 0) | |
2159 | error ("requires an argument (function, line or *addr) to define a scope"); | |
2160 | ||
2161 | sals = decode_line_1 (&args, 1, NULL, 0, &canonical); | |
2162 | if (sals.nelts == 0) | |
2163 | return; /* presumably decode_line_1 has already warned */ | |
2164 | ||
6156728b MS |
2165 | /* Resolve line numbers to PC */ |
2166 | resolve_sal_pc (&sals.sals[0]); | |
6a02d201 | 2167 | block = block_for_pc (sals.sals[0].pc); |
6156728b | 2168 | |
6a02d201 MS |
2169 | while (block != 0) |
2170 | { | |
2171 | nsyms = BLOCK_NSYMS (block); | |
2172 | for (i = 0; i < nsyms; i++) | |
2173 | { | |
6156728b MS |
2174 | if (count == 0) |
2175 | printf_filtered ("Scope for %s:\n", save_args); | |
6a02d201 MS |
2176 | count++; |
2177 | sym = BLOCK_SYM (block, i); | |
6156728b MS |
2178 | symname = SYMBOL_NAME (sym); |
2179 | if (symname == NULL || *symname == '\0') | |
2180 | continue; /* probably botched, certainly useless */ | |
2181 | ||
2182 | printf_filtered ("Symbol %s is ", symname); | |
6a02d201 MS |
2183 | switch (SYMBOL_CLASS (sym)) { |
2184 | default: | |
2185 | case LOC_UNDEF: /* messed up symbol? */ | |
6156728b MS |
2186 | printf_filtered ("a bogus symbol, class %d.\n", |
2187 | SYMBOL_CLASS (sym)); | |
6a02d201 MS |
2188 | count--; /* don't count this one */ |
2189 | continue; | |
6156728b MS |
2190 | case LOC_CONST: |
2191 | printf_filtered ("a constant with value %d (0x%x)", | |
2192 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); | |
2193 | break; | |
2194 | case LOC_CONST_BYTES: | |
2195 | printf_filtered ("constant bytes: "); | |
2196 | if (SYMBOL_TYPE (sym)) | |
2197 | for (i = 0; i < TYPE_LENGTH (SYMBOL_TYPE (sym)); i++) | |
2198 | fprintf_filtered (gdb_stdout, " %02x", | |
2199 | (unsigned) SYMBOL_VALUE_BYTES (sym) [i]); | |
2200 | break; | |
2201 | case LOC_STATIC: | |
2202 | printf_filtered ("in static storage at address "); | |
2203 | print_address_numeric (SYMBOL_VALUE_ADDRESS (sym), 1, gdb_stdout); | |
2204 | break; | |
2205 | case LOC_REGISTER: | |
2206 | printf_filtered ("a local variable in register $%s", | |
2207 | reg_names [SYMBOL_VALUE (sym)]); | |
2208 | break; | |
2209 | case LOC_ARG: | |
2210 | case LOC_LOCAL_ARG: | |
2211 | printf_filtered ("an argument at stack/frame offset %ld", | |
2212 | SYMBOL_VALUE (sym)); | |
2213 | break; | |
2214 | case LOC_LOCAL: | |
2215 | printf_filtered ("a local variable at frame offset %ld", | |
2216 | SYMBOL_VALUE (sym)); | |
2217 | break; | |
2218 | case LOC_REF_ARG: | |
2219 | printf_filtered ("a reference argument at offset %ld", | |
2220 | SYMBOL_VALUE (sym)); | |
2221 | break; | |
2222 | case LOC_REGPARM: | |
2223 | printf_filtered ("an argument in register $%s", | |
2224 | reg_names[SYMBOL_VALUE (sym)]); | |
2225 | break; | |
6a02d201 | 2226 | case LOC_REGPARM_ADDR: |
6156728b MS |
2227 | printf_filtered ("the address of an argument, in register $%s", |
2228 | reg_names[SYMBOL_VALUE (sym)]); | |
2229 | break; | |
2230 | case LOC_TYPEDEF: | |
2231 | printf_filtered ("a typedef.\n"); | |
2232 | continue; | |
2233 | case LOC_LABEL: | |
2234 | printf_filtered ("a label at address "); | |
2235 | print_address_numeric (SYMBOL_VALUE_ADDRESS (sym), 1, gdb_stdout); | |
2236 | break; | |
2237 | case LOC_BLOCK: | |
2238 | printf_filtered ("a function at address "); | |
2239 | print_address_numeric (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), 1, | |
2240 | gdb_stdout); | |
2241 | break; | |
2242 | case LOC_BASEREG: | |
2243 | printf_filtered ("a variable at offset %d from register $%s", | |
2244 | SYMBOL_VALUE (sym), | |
2245 | reg_names [SYMBOL_BASEREG (sym)]); | |
2246 | break; | |
2247 | case LOC_BASEREG_ARG: | |
2248 | printf_filtered ("an argument at offset %d from register $%s", | |
2249 | SYMBOL_VALUE (sym), | |
2250 | reg_names [SYMBOL_BASEREG (sym)]); | |
2251 | break; | |
6a02d201 | 2252 | case LOC_UNRESOLVED: |
6156728b MS |
2253 | msym = lookup_minimal_symbol (SYMBOL_NAME (sym), NULL, NULL); |
2254 | if (msym == NULL) | |
2255 | printf_filtered ("Unresolved Static"); | |
2256 | else | |
2257 | { | |
2258 | printf_filtered ("static storage at address "); | |
2259 | print_address_numeric (SYMBOL_VALUE_ADDRESS (msym), 1, | |
2260 | gdb_stdout); | |
2261 | } | |
2262 | break; | |
2263 | case LOC_OPTIMIZED_OUT: | |
2264 | printf_filtered ("optimized out.\n"); | |
2265 | continue; | |
6a02d201 | 2266 | } |
6156728b MS |
2267 | if (SYMBOL_TYPE (sym)) |
2268 | printf_filtered (", length %d.\n", | |
2269 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); | |
6a02d201 MS |
2270 | } |
2271 | if (BLOCK_FUNCTION (block)) | |
2272 | break; | |
2273 | else | |
2274 | block = BLOCK_SUPERBLOCK (block); | |
2275 | } | |
2276 | if (count <= 0) | |
6156728b MS |
2277 | printf_filtered ("Scope for %s contains no locals or arguments.\n", |
2278 | save_args); | |
6a02d201 MS |
2279 | } |
2280 | ||
8b9c29f5 | 2281 | /* worker function (cleanup) */ |
6156728b MS |
2282 | static void |
2283 | replace_comma (comma) | |
2284 | char *comma; | |
2285 | { | |
2286 | *comma = ','; | |
2287 | } | |
2288 | ||
8b9c29f5 | 2289 | /* tdump command */ |
6156728b MS |
2290 | static void |
2291 | trace_dump_command (args, from_tty) | |
2292 | char *args; | |
2293 | int from_tty; | |
2294 | { | |
2295 | struct tracepoint *t; | |
2296 | struct action_line *action; | |
2297 | char *action_exp, *next_comma; | |
2298 | struct cleanup *old_cleanups; | |
2299 | int stepping_actions = 0; | |
2300 | int stepping_frame = 0; | |
2301 | ||
2302 | if (tracepoint_number == -1) | |
2303 | { | |
2304 | warning ("No current trace frame."); | |
2305 | return; | |
2306 | } | |
2307 | ||
2308 | ALL_TRACEPOINTS (t) | |
2309 | if (t->number == tracepoint_number) | |
2310 | break; | |
2311 | ||
2312 | if (t == NULL) | |
2313 | error ("No known tracepoint matches 'current' tracepoint #%d.", | |
2314 | tracepoint_number); | |
2315 | ||
2316 | old_cleanups = make_cleanup (null_cleanup, NULL); | |
2317 | ||
2318 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", | |
2319 | tracepoint_number, traceframe_number); | |
2320 | ||
2321 | /* The current frame is a trap frame if the frame PC is equal | |
2322 | to the tracepoint PC. If not, then the current frame was | |
2323 | collected during single-stepping. */ | |
2324 | ||
2325 | stepping_frame = (t->address != read_pc()); | |
2326 | ||
2327 | for (action = t->actions; action; action = action->next) | |
2328 | { | |
728c7f37 MS |
2329 | struct cmd_list_element *cmd; |
2330 | ||
6156728b MS |
2331 | action_exp = action->action; |
2332 | while (isspace (*action_exp)) | |
2333 | action_exp++; | |
2334 | ||
2335 | /* The collection actions to be done while stepping are | |
2336 | bracketed by the commands "while-stepping" and "end". */ | |
2337 | ||
5d187fd3 MS |
2338 | if (*action_exp == '#') /* comment line */ |
2339 | continue; | |
2340 | ||
728c7f37 MS |
2341 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
2342 | if (cmd == 0) | |
2343 | error ("Bad action list item: %s", action_exp); | |
2344 | ||
2345 | if (cmd->function.cfunc == while_stepping_pseudocommand) | |
6156728b | 2346 | stepping_actions = 1; |
728c7f37 | 2347 | else if (cmd->function.cfunc == end_actions_pseudocommand) |
6156728b | 2348 | stepping_actions = 0; |
728c7f37 | 2349 | else if (cmd->function.cfunc == collect_pseudocommand) |
6156728b MS |
2350 | { |
2351 | /* Display the collected data. | |
2352 | For the trap frame, display only what was collected at the trap. | |
2353 | Likewise for stepping frames, display only what was collected | |
2354 | while stepping. This means that the two boolean variables, | |
2355 | STEPPING_FRAME and STEPPING_ACTIONS should be equal. */ | |
2356 | if (stepping_frame == stepping_actions) | |
2357 | { | |
6156728b MS |
2358 | do { /* repeat over a comma-separated list */ |
2359 | QUIT; | |
2360 | if (*action_exp == ',') | |
2361 | action_exp++; | |
2362 | while (isspace (*action_exp)) | |
2363 | action_exp++; | |
2364 | ||
2365 | next_comma = strchr (action_exp, ','); | |
6156728b MS |
2366 | |
2367 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2368 | registers_info (NULL, from_tty); | |
2369 | else if (0 == strncasecmp (action_exp, "$loc", 4)) | |
2370 | locals_info (NULL, from_tty); | |
2371 | else if (0 == strncasecmp (action_exp, "$arg", 4)) | |
2372 | args_info (NULL, from_tty); | |
28ad0632 MS |
2373 | else if (action_exp[0] == '$' && action_exp[1] == '(') |
2374 | { /* memrange */ | |
2375 | long typecode, size; | |
2376 | bfd_signed_vma offset; | |
2377 | char fmt[40]; | |
2378 | ||
2379 | action_exp = parse_and_eval_memrange (action_exp, | |
2380 | read_pc (), | |
2381 | &typecode, | |
2382 | &offset, | |
2383 | &size); | |
2384 | if (typecode != 0 && typecode != -1) | |
2385 | offset += read_register (typecode); | |
2386 | sprintf (fmt, "/%dxb 0x%x", size, offset); | |
2387 | x_command (fmt, from_tty); | |
2388 | next_comma = strchr (action_exp, ','); | |
2389 | } | |
6156728b | 2390 | else |
28ad0632 MS |
2391 | { /* variable */ |
2392 | if (next_comma) | |
2393 | { | |
2394 | make_cleanup (replace_comma, next_comma); | |
2395 | *next_comma = '\0'; | |
2396 | } | |
6156728b MS |
2397 | printf_filtered ("%s = ", action_exp); |
2398 | output_command (action_exp, from_tty); | |
2399 | printf_filtered ("\n"); | |
2400 | } | |
2401 | if (next_comma) | |
2402 | *next_comma = ','; | |
2403 | action_exp = next_comma; | |
2404 | } while (action_exp && *action_exp == ','); | |
2405 | } | |
2406 | } | |
2407 | } | |
2408 | discard_cleanups (old_cleanups); | |
2409 | } | |
2410 | ||
8b9c29f5 | 2411 | /* module initialization */ |
6a02d201 MS |
2412 | void |
2413 | _initialize_tracepoint () | |
2414 | { | |
2415 | tracepoint_chain = 0; | |
2416 | tracepoint_count = 0; | |
6156728b MS |
2417 | traceframe_number = -1; |
2418 | tracepoint_number = -1; | |
6a02d201 MS |
2419 | |
2420 | set_internalvar (lookup_internalvar ("tpnum"), | |
2421 | value_from_longest (builtin_type_int, (LONGEST) 0)); | |
2422 | set_internalvar (lookup_internalvar ("trace_frame"), | |
2423 | value_from_longest (builtin_type_int, (LONGEST) 0)); | |
2424 | ||
2425 | if (tracepoint_list.list == NULL) | |
2426 | { | |
2427 | tracepoint_list.listsize = 128; | |
2428 | tracepoint_list.list = xmalloc | |
2429 | (tracepoint_list.listsize * sizeof (struct memrange)); | |
2430 | } | |
2431 | if (stepping_list.list == NULL) | |
2432 | { | |
2433 | stepping_list.listsize = 128; | |
2434 | stepping_list.list = xmalloc | |
2435 | (stepping_list.listsize * sizeof (struct memrange)); | |
2436 | } | |
2437 | ||
2438 | add_info ("scope", scope_info, | |
2439 | "List the variables local to a scope"); | |
2440 | ||
6a02d201 | 2441 | add_cmd ("tracepoints", class_trace, NO_FUNCTION, |
6156728b | 2442 | "Tracing of program execution without stopping the program.", |
6a02d201 MS |
2443 | &cmdlist); |
2444 | ||
2445 | add_info ("tracepoints", tracepoints_info, | |
6156728b MS |
2446 | "Status of tracepoints, or tracepoint number NUMBER.\n\ |
2447 | Convenience variable \"$tpnum\" contains the number of the\n\ | |
2448 | last tracepoint set."); | |
6a02d201 MS |
2449 | |
2450 | add_info_alias ("tp", "tracepoints", 1); | |
2451 | ||
2452 | add_com ("save-tracepoints", class_trace, tracepoint_save_command, | |
6156728b MS |
2453 | "Save current tracepoint definitions as a script.\n\ |
2454 | Use the 'source' command in another debug session to restore them."); | |
6a02d201 | 2455 | |
6156728b MS |
2456 | add_com ("tdump", class_trace, trace_dump_command, |
2457 | "Print everything collected at the current tracepoint."); | |
6a02d201 | 2458 | |
6156728b MS |
2459 | add_prefix_cmd ("tfind", class_trace, trace_find_command, |
2460 | "Select a trace frame;\n\ | |
2461 | No argument means forward by one frame; '-' meand backward by one frame.", | |
6a02d201 MS |
2462 | &tfindlist, "tfind ", 1, &cmdlist); |
2463 | ||
2464 | add_cmd ("outside", class_trace, trace_find_outside_command, | |
6156728b MS |
2465 | "Select a trace frame whose PC is outside the given \ |
2466 | range.\nUsage: tfind outside addr1, addr2", | |
6a02d201 MS |
2467 | &tfindlist); |
2468 | ||
2469 | add_cmd ("range", class_trace, trace_find_range_command, | |
6156728b MS |
2470 | "Select a trace frame whose PC is in the given range.\n\ |
2471 | Usage: tfind range addr1,addr2", | |
2472 | &tfindlist); | |
6a02d201 | 2473 | |
6156728b MS |
2474 | add_cmd ("line", class_trace, trace_find_line_command, |
2475 | "Select a trace frame by source line.\n\ | |
2476 | Argument can be a line number (with optional source file), \n\ | |
2477 | a function name, or '*' followed by an address.\n\ | |
2478 | Default argument is 'the next source line that was traced'.", | |
2479 | &tfindlist); | |
2480 | ||
2481 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, | |
2482 | "Select a trace frame by tracepoint number.\n\ | |
2483 | Default is the tracepoint for the current trace frame.", | |
2484 | &tfindlist); | |
6a02d201 MS |
2485 | |
2486 | add_cmd ("pc", class_trace, trace_find_pc_command, | |
6156728b MS |
2487 | "Select a trace frame by PC.\n\ |
2488 | Default is the current PC, or the PC of the current trace frame.", | |
2489 | &tfindlist); | |
6a02d201 | 2490 | |
6156728b MS |
2491 | add_cmd ("end", class_trace, trace_find_end_command, |
2492 | "Synonym for 'none'.\n\ | |
2493 | De-select any trace frame and resume 'live' debugging.", | |
2494 | &tfindlist); | |
2495 | ||
2496 | add_cmd ("none", class_trace, trace_find_none_command, | |
2497 | "De-select any trace frame and resume 'live' debugging.", | |
2498 | &tfindlist); | |
2499 | ||
2500 | add_cmd ("start", class_trace, trace_find_start_command, | |
2501 | "Select the first trace frame in the trace buffer.", | |
2502 | &tfindlist); | |
6a02d201 MS |
2503 | |
2504 | add_com ("tstatus", class_trace, trace_status_command, | |
6156728b | 2505 | "Display the status of the current trace data collection."); |
6a02d201 MS |
2506 | |
2507 | add_com ("tstop", class_trace, trace_stop_command, | |
2508 | "Stop trace data collection."); | |
2509 | ||
2510 | add_com ("tstart", class_trace, trace_start_command, | |
2511 | "Start trace data collection."); | |
2512 | ||
2513 | add_com ("passcount", class_trace, trace_pass_command, | |
6156728b MS |
2514 | "Set the passcount for a tracepoint.\n\ |
2515 | The trace will end when the tracepoint has been passed 'count' times.\n\ | |
2516 | Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\ | |
2517 | if TPNUM is omitted, passcount refers to the last tracepoint defined."); | |
2518 | ||
728c7f37 | 2519 | add_com ("end", class_trace, end_actions_pseudocommand, |
6156728b MS |
2520 | "Ends a list of commands or actions.\n\ |
2521 | Several GDB commands allow you to enter a list of commands or actions.\n\ | |
2522 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
2523 | such a list.\n\n\ | |
2524 | Note: the \"end\" command cannot be used at the gdb prompt."); | |
2525 | ||
728c7f37 | 2526 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, |
6156728b MS |
2527 | "Specify single-stepping behavior at a tracepoint.\n\ |
2528 | Argument is number of instructions to trace in single-step mode\n\ | |
2529 | following the tracepoint. This command is normally followed by\n\ | |
2530 | one or more \"collect\" commands, to specify what to collect\n\ | |
2531 | while single-stepping.\n\n\ | |
2532 | Note: this command can only be used in a tracepoint \"actions\" list."); | |
2533 | ||
728c7f37 MS |
2534 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
2535 | add_com_alias ("stepping", "while-stepping", class_alias, 0); | |
2536 | ||
2537 | add_com ("collect", class_trace, collect_pseudocommand, | |
6156728b MS |
2538 | "Specify one or more data items to be collected at a tracepoint.\n\ |
2539 | Accepts a comma-separated list of (one or more) arguments.\n\ | |
2540 | Things that may be collected include registers, variables, plus\n\ | |
2541 | the following special arguments:\n\ | |
2542 | $regs -- all registers.\n\ | |
2543 | $args -- all function arguments.\n\ | |
2544 | $locals -- all variables local to the block/function scope.\n\ | |
2545 | $(addr,len) -- a literal memory range.\n\ | |
2546 | $($reg,addr,len) -- a register-relative literal memory range.\n\n\ | |
2547 | Note: this command can only be used in a tracepoint \"actions\" list."); | |
6a02d201 MS |
2548 | |
2549 | add_com ("actions", class_trace, trace_actions_command, | |
6156728b MS |
2550 | "Specify the actions to be taken at a tracepoint.\n\ |
2551 | Tracepoint actions may include collecting of specified data, \n\ | |
2552 | single-stepping, or enabling/disabling other tracepoints, \n\ | |
2553 | depending on target's capabilities."); | |
6a02d201 MS |
2554 | |
2555 | add_cmd ("tracepoints", class_trace, delete_trace_command, | |
6156728b MS |
2556 | "Delete specified tracepoints.\n\ |
2557 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
2558 | No argument means delete all tracepoints.", | |
6a02d201 MS |
2559 | &deletelist); |
2560 | ||
2561 | add_cmd ("tracepoints", class_trace, disable_trace_command, | |
6156728b MS |
2562 | "Disable specified tracepoints.\n\ |
2563 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
2564 | No argument means disable all tracepoints.", | |
6a02d201 MS |
2565 | &disablelist); |
2566 | ||
2567 | add_cmd ("tracepoints", class_trace, enable_trace_command, | |
6156728b MS |
2568 | "Enable specified tracepoints.\n\ |
2569 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
2570 | No argument means enable all tracepoints.", | |
6a02d201 MS |
2571 | &enablelist); |
2572 | ||
2573 | add_com ("trace", class_trace, trace_command, | |
6156728b MS |
2574 | "Set a tracepoint at a specified line or function or address.\n\ |
2575 | Argument may be a line number, function name, or '*' plus an address.\n\ | |
2576 | For a line number or function, trace at the start of its code.\n\ | |
2577 | If an address is specified, trace at that exact address.\n\n\ | |
2578 | Do \"help tracepoints\" for info on other tracepoint commands."); | |
6a02d201 MS |
2579 | |
2580 | add_com_alias ("tp", "trace", class_alias, 0); | |
2581 | add_com_alias ("tr", "trace", class_alias, 1); | |
2582 | add_com_alias ("tra", "trace", class_alias, 1); | |
2583 | add_com_alias ("trac", "trace", class_alias, 1); | |
6a02d201 | 2584 | } |
6156728b | 2585 |