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c906108c SS |
1 | /* Tracing functionality for remote targets in custom GDB protocol |
2 | Copyright 1997, 1998 Free Software Foundation, Inc. | |
3 | ||
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
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. | |
c906108c | 10 | |
c5aa993b JM |
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. | |
c906108c | 15 | |
c5aa993b JM |
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, | |
19 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
20 | |
21 | #include "defs.h" | |
22 | #include "symtab.h" | |
23 | #include "frame.h" | |
24 | #include "tracepoint.h" | |
25 | #include "gdbtypes.h" | |
26 | #include "expression.h" | |
27 | #include "gdbcmd.h" | |
28 | #include "value.h" | |
29 | #include "target.h" | |
30 | #include "language.h" | |
31 | #include "gdb_string.h" | |
32 | ||
33 | #include "ax.h" | |
34 | #include "ax-gdb.h" | |
35 | ||
36 | /* readline include files */ | |
37 | #include <readline/readline.h> | |
38 | #include <readline/history.h> | |
39 | ||
40 | /* readline defines this. */ | |
41 | #undef savestring | |
42 | ||
43 | #ifdef HAVE_UNISTD_H | |
44 | #include <unistd.h> | |
45 | #endif | |
46 | ||
47 | /* maximum length of an agent aexpression. | |
48 | this accounts for the fact that packets are limited to 400 bytes | |
49 | (which includes everything -- including the checksum), and assumes | |
50 | the worst case of maximum length for each of the pieces of a | |
51 | continuation packet. | |
c5aa993b | 52 | |
c906108c SS |
53 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
54 | large. (400 - 31)/2 == 184 */ | |
55 | #define MAX_AGENT_EXPR_LEN 184 | |
56 | ||
57 | ||
58 | extern int info_verbose; | |
c5aa993b JM |
59 | extern void (*readline_begin_hook) PARAMS ((char *,...)); |
60 | extern char *(*readline_hook) PARAMS ((char *)); | |
c906108c SS |
61 | extern void (*readline_end_hook) PARAMS ((void)); |
62 | extern void x_command PARAMS ((char *, int)); | |
c5aa993b | 63 | extern int addressprint; /* Print machine addresses? */ |
c906108c SS |
64 | |
65 | /* If this definition isn't overridden by the header files, assume | |
66 | that isatty and fileno exist on this system. */ | |
67 | #ifndef ISATTY | |
68 | #define ISATTY(FP) (isatty (fileno (FP))) | |
69 | #endif | |
70 | ||
71 | /* | |
72 | Tracepoint.c: | |
73 | ||
74 | This module defines the following debugger commands: | |
75 | trace : set a tracepoint on a function, line, or address. | |
76 | info trace : list all debugger-defined tracepoints. | |
77 | delete trace : delete one or more tracepoints. | |
78 | enable trace : enable one or more tracepoints. | |
79 | disable trace : disable one or more tracepoints. | |
80 | actions : specify actions to be taken at a tracepoint. | |
81 | passcount : specify a pass count for a tracepoint. | |
82 | tstart : start a trace experiment. | |
83 | tstop : stop a trace experiment. | |
84 | tstatus : query the status of a trace experiment. | |
85 | tfind : find a trace frame in the trace buffer. | |
86 | tdump : print everything collected at the current tracepoint. | |
87 | save-tracepoints : write tracepoint setup into a file. | |
88 | ||
89 | This module defines the following user-visible debugger variables: | |
90 | $trace_frame : sequence number of trace frame currently being debugged. | |
91 | $trace_line : source line of trace frame currently being debugged. | |
92 | $trace_file : source file of trace frame currently being debugged. | |
93 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
c5aa993b | 94 | */ |
c906108c SS |
95 | |
96 | ||
97 | /* ======= Important global variables: ======= */ | |
98 | ||
99 | /* Chain of all tracepoints defined. */ | |
100 | struct tracepoint *tracepoint_chain; | |
101 | ||
102 | /* Number of last tracepoint made. */ | |
103 | static int tracepoint_count; | |
104 | ||
105 | /* Number of last traceframe collected. */ | |
106 | static int traceframe_number; | |
107 | ||
108 | /* Tracepoint for last traceframe collected. */ | |
109 | static int tracepoint_number; | |
110 | ||
111 | /* Symbol for function for last traceframe collected */ | |
112 | static struct symbol *traceframe_fun; | |
113 | ||
114 | /* Symtab and line for last traceframe collected */ | |
115 | static struct symtab_and_line traceframe_sal; | |
116 | ||
117 | /* Tracing command lists */ | |
118 | static struct cmd_list_element *tfindlist; | |
119 | ||
120 | /* ======= Important command functions: ======= */ | |
c5aa993b JM |
121 | static void trace_command PARAMS ((char *, int)); |
122 | static void tracepoints_info PARAMS ((char *, int)); | |
123 | static void delete_trace_command PARAMS ((char *, int)); | |
124 | static void enable_trace_command PARAMS ((char *, int)); | |
125 | static void disable_trace_command PARAMS ((char *, int)); | |
126 | static void trace_pass_command PARAMS ((char *, int)); | |
127 | static void trace_actions_command PARAMS ((char *, int)); | |
128 | static void trace_start_command PARAMS ((char *, int)); | |
129 | static void trace_stop_command PARAMS ((char *, int)); | |
130 | static void trace_status_command PARAMS ((char *, int)); | |
131 | static void trace_find_command PARAMS ((char *, int)); | |
132 | static void trace_find_pc_command PARAMS ((char *, int)); | |
c906108c | 133 | static void trace_find_tracepoint_command PARAMS ((char *, int)); |
c5aa993b JM |
134 | static void trace_find_line_command PARAMS ((char *, int)); |
135 | static void trace_find_range_command PARAMS ((char *, int)); | |
136 | static void trace_find_outside_command PARAMS ((char *, int)); | |
137 | static void tracepoint_save_command PARAMS ((char *, int)); | |
138 | static void trace_dump_command PARAMS ((char *, int)); | |
c906108c SS |
139 | |
140 | /* support routines */ | |
c5aa993b | 141 | static void trace_mention PARAMS ((struct tracepoint *)); |
c906108c | 142 | |
392a587b | 143 | #if __STDC__ |
c906108c | 144 | struct collection_list; |
392a587b | 145 | #endif |
c906108c | 146 | static void add_aexpr PARAMS ((struct collection_list *, struct agent_expr *)); |
c5aa993b JM |
147 | static unsigned char *mem2hex (unsigned char *, unsigned char *, int); |
148 | static void add_register PARAMS ((struct collection_list * collection, unsigned long regno)); | |
392a587b | 149 | static void free_actions_list PARAMS ((char **actions_list)); |
c5aa993b | 150 | static void free_actions_list_cleanup_wrapper PARAMS ((void *)); |
392a587b JM |
151 | |
152 | extern void _initialize_tracepoint PARAMS ((void)); | |
c906108c SS |
153 | |
154 | /* Utility: returns true if "target remote" */ | |
155 | static int | |
156 | target_is_remote () | |
157 | { | |
158 | if (current_target.to_shortname && | |
159 | strcmp (current_target.to_shortname, "remote") == 0) | |
160 | return 1; | |
161 | else | |
162 | return 0; | |
163 | } | |
164 | ||
165 | /* Utility: generate error from an incoming stub packet. */ | |
c5aa993b | 166 | static void |
c906108c SS |
167 | trace_error (buf) |
168 | char *buf; | |
169 | { | |
170 | if (*buf++ != 'E') | |
171 | return; /* not an error msg */ | |
c5aa993b | 172 | switch (*buf) |
c906108c SS |
173 | { |
174 | case '1': /* malformed packet error */ | |
175 | if (*++buf == '0') /* general case: */ | |
176 | error ("tracepoint.c: error in outgoing packet."); | |
177 | else | |
c5aa993b | 178 | error ("tracepoint.c: error in outgoing packet at field #%d.", |
c906108c SS |
179 | strtol (buf, NULL, 16)); |
180 | case '2': | |
181 | error ("trace API error 0x%s.", ++buf); | |
182 | default: | |
183 | error ("Target returns error code '%s'.", buf); | |
184 | } | |
185 | } | |
186 | ||
187 | /* Utility: wait for reply from stub, while accepting "O" packets */ | |
188 | static char * | |
189 | remote_get_noisy_reply (buf) | |
190 | char *buf; | |
191 | { | |
c5aa993b | 192 | do /* loop on reply from remote stub */ |
c906108c | 193 | { |
c5aa993b | 194 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
195 | getpkt (buf, 0); |
196 | if (buf[0] == 0) | |
197 | error ("Target does not support this command."); | |
198 | else if (buf[0] == 'E') | |
199 | trace_error (buf); | |
200 | else if (buf[0] == 'O' && | |
201 | buf[1] != 'K') | |
202 | remote_console_output (buf + 1); /* 'O' message from stub */ | |
203 | else | |
c5aa993b JM |
204 | return buf; /* here's the actual reply */ |
205 | } | |
206 | while (1); | |
c906108c SS |
207 | } |
208 | ||
209 | /* Set tracepoint count to NUM. */ | |
210 | static void | |
211 | set_tracepoint_count (num) | |
212 | int num; | |
213 | { | |
214 | tracepoint_count = num; | |
215 | set_internalvar (lookup_internalvar ("tpnum"), | |
216 | value_from_longest (builtin_type_int, (LONGEST) num)); | |
217 | } | |
218 | ||
219 | /* Set traceframe number to NUM. */ | |
220 | static void | |
221 | set_traceframe_num (num) | |
222 | int num; | |
223 | { | |
224 | traceframe_number = num; | |
225 | set_internalvar (lookup_internalvar ("trace_frame"), | |
226 | value_from_longest (builtin_type_int, (LONGEST) num)); | |
227 | } | |
228 | ||
229 | /* Set tracepoint number to NUM. */ | |
230 | static void | |
231 | set_tracepoint_num (num) | |
232 | int num; | |
233 | { | |
234 | tracepoint_number = num; | |
235 | set_internalvar (lookup_internalvar ("tracepoint"), | |
236 | value_from_longest (builtin_type_int, (LONGEST) num)); | |
237 | } | |
238 | ||
239 | /* Set externally visible debug variables for querying/printing | |
240 | the traceframe context (line, function, file) */ | |
241 | ||
242 | static void | |
243 | set_traceframe_context (trace_pc) | |
244 | CORE_ADDR trace_pc; | |
245 | { | |
246 | static struct type *func_string, *file_string; | |
c5aa993b JM |
247 | static struct type *func_range, *file_range; |
248 | static value_ptr func_val, file_val; | |
c906108c SS |
249 | static struct type *charstar; |
250 | int len; | |
251 | ||
252 | if (charstar == (struct type *) NULL) | |
253 | charstar = lookup_pointer_type (builtin_type_char); | |
254 | ||
c5aa993b | 255 | if (trace_pc == -1) /* cease debugging any trace buffers */ |
c906108c SS |
256 | { |
257 | traceframe_fun = 0; | |
258 | traceframe_sal.pc = traceframe_sal.line = 0; | |
259 | traceframe_sal.symtab = NULL; | |
c5aa993b | 260 | set_internalvar (lookup_internalvar ("trace_func"), |
c906108c | 261 | value_from_longest (charstar, (LONGEST) 0)); |
c5aa993b | 262 | set_internalvar (lookup_internalvar ("trace_file"), |
c906108c SS |
263 | value_from_longest (charstar, (LONGEST) 0)); |
264 | set_internalvar (lookup_internalvar ("trace_line"), | |
c5aa993b | 265 | value_from_longest (builtin_type_int, (LONGEST) - 1)); |
c906108c SS |
266 | return; |
267 | } | |
268 | ||
269 | /* save as globals for internal use */ | |
270 | traceframe_sal = find_pc_line (trace_pc, 0); | |
271 | traceframe_fun = find_pc_function (trace_pc); | |
272 | ||
273 | /* save linenumber as "$trace_line", a debugger variable visible to users */ | |
274 | set_internalvar (lookup_internalvar ("trace_line"), | |
c5aa993b | 275 | value_from_longest (builtin_type_int, |
c906108c SS |
276 | (LONGEST) traceframe_sal.line)); |
277 | ||
278 | /* save func name as "$trace_func", a debugger variable visible to users */ | |
c5aa993b | 279 | if (traceframe_fun == NULL || |
c906108c | 280 | SYMBOL_NAME (traceframe_fun) == NULL) |
c5aa993b | 281 | set_internalvar (lookup_internalvar ("trace_func"), |
c906108c SS |
282 | value_from_longest (charstar, (LONGEST) 0)); |
283 | else | |
284 | { | |
285 | len = strlen (SYMBOL_NAME (traceframe_fun)); | |
c5aa993b JM |
286 | func_range = create_range_type (func_range, |
287 | builtin_type_int, 0, len - 1); | |
288 | func_string = create_array_type (func_string, | |
c906108c SS |
289 | builtin_type_char, func_range); |
290 | func_val = allocate_value (func_string); | |
291 | VALUE_TYPE (func_val) = func_string; | |
c5aa993b JM |
292 | memcpy (VALUE_CONTENTS_RAW (func_val), |
293 | SYMBOL_NAME (traceframe_fun), | |
c906108c SS |
294 | len); |
295 | func_val->modifiable = 0; | |
296 | set_internalvar (lookup_internalvar ("trace_func"), func_val); | |
297 | } | |
298 | ||
299 | /* save file name as "$trace_file", a debugger variable visible to users */ | |
c5aa993b | 300 | if (traceframe_sal.symtab == NULL || |
c906108c | 301 | traceframe_sal.symtab->filename == NULL) |
c5aa993b | 302 | set_internalvar (lookup_internalvar ("trace_file"), |
c906108c SS |
303 | value_from_longest (charstar, (LONGEST) 0)); |
304 | else | |
305 | { | |
306 | len = strlen (traceframe_sal.symtab->filename); | |
c5aa993b JM |
307 | file_range = create_range_type (file_range, |
308 | builtin_type_int, 0, len - 1); | |
309 | file_string = create_array_type (file_string, | |
c906108c SS |
310 | builtin_type_char, file_range); |
311 | file_val = allocate_value (file_string); | |
312 | VALUE_TYPE (file_val) = file_string; | |
c5aa993b JM |
313 | memcpy (VALUE_CONTENTS_RAW (file_val), |
314 | traceframe_sal.symtab->filename, | |
c906108c SS |
315 | len); |
316 | file_val->modifiable = 0; | |
317 | set_internalvar (lookup_internalvar ("trace_file"), file_val); | |
318 | } | |
319 | } | |
320 | ||
321 | /* Low level routine to set a tracepoint. | |
322 | Returns the tracepoint object so caller can set other things. | |
323 | Does not set the tracepoint number! | |
324 | Does not print anything. | |
325 | ||
326 | ==> This routine should not be called if there is a chance of later | |
327 | error(); otherwise it leaves a bogus tracepoint on the chain. Validate | |
328 | your arguments BEFORE calling this routine! */ | |
329 | ||
330 | static struct tracepoint * | |
331 | set_raw_tracepoint (sal) | |
332 | struct symtab_and_line sal; | |
333 | { | |
334 | register struct tracepoint *t, *tc; | |
335 | struct cleanup *old_chain; | |
336 | ||
337 | t = (struct tracepoint *) xmalloc (sizeof (struct tracepoint)); | |
338 | old_chain = make_cleanup (free, t); | |
339 | memset (t, 0, sizeof (*t)); | |
340 | t->address = sal.pc; | |
341 | if (sal.symtab == NULL) | |
342 | t->source_file = NULL; | |
343 | else | |
c5aa993b | 344 | t->source_file = savestring (sal.symtab->filename, |
c906108c SS |
345 | strlen (sal.symtab->filename)); |
346 | ||
c5aa993b JM |
347 | t->section = sal.section; |
348 | t->language = current_language->la_language; | |
c906108c SS |
349 | t->input_radix = input_radix; |
350 | t->line_number = sal.line; | |
c5aa993b JM |
351 | t->enabled = enabled; |
352 | t->next = 0; | |
353 | t->step_count = 0; | |
354 | t->pass_count = 0; | |
c906108c SS |
355 | t->addr_string = NULL; |
356 | ||
357 | /* Add this tracepoint to the end of the chain | |
358 | so that a list of tracepoints will come out in order | |
359 | of increasing numbers. */ | |
360 | ||
361 | tc = tracepoint_chain; | |
362 | if (tc == 0) | |
363 | tracepoint_chain = t; | |
364 | else | |
365 | { | |
366 | while (tc->next) | |
367 | tc = tc->next; | |
368 | tc->next = t; | |
369 | } | |
370 | discard_cleanups (old_chain); | |
371 | return t; | |
372 | } | |
373 | ||
374 | /* Set a tracepoint according to ARG (function, linenum or *address) */ | |
375 | static void | |
376 | trace_command (arg, from_tty) | |
377 | char *arg; | |
378 | int from_tty; | |
379 | { | |
c5aa993b | 380 | char **canonical = (char **) NULL; |
c906108c SS |
381 | struct symtabs_and_lines sals; |
382 | struct symtab_and_line sal; | |
383 | struct tracepoint *t; | |
384 | char *addr_start = 0, *addr_end = 0; | |
385 | int i; | |
386 | ||
387 | if (!arg || !*arg) | |
388 | error ("trace command requires an argument"); | |
389 | ||
390 | if (from_tty && info_verbose) | |
391 | printf_filtered ("TRACE %s\n", arg); | |
392 | ||
393 | addr_start = arg; | |
c5aa993b JM |
394 | sals = decode_line_1 (&arg, 1, (struct symtab *) NULL, 0, &canonical); |
395 | addr_end = arg; | |
396 | if (!sals.nelts) | |
397 | return; /* ??? Presumably decode_line_1 has already warned? */ | |
c906108c SS |
398 | |
399 | /* Resolve all line numbers to PC's */ | |
400 | for (i = 0; i < sals.nelts; i++) | |
401 | resolve_sal_pc (&sals.sals[i]); | |
402 | ||
403 | /* Now set all the tracepoints. */ | |
404 | for (i = 0; i < sals.nelts; i++) | |
405 | { | |
406 | sal = sals.sals[i]; | |
407 | ||
408 | t = set_raw_tracepoint (sal); | |
409 | set_tracepoint_count (tracepoint_count + 1); | |
410 | t->number = tracepoint_count; | |
411 | ||
412 | /* If a canonical line spec is needed use that instead of the | |
c5aa993b JM |
413 | command string. */ |
414 | if (canonical != (char **) NULL && canonical[i] != NULL) | |
c906108c SS |
415 | t->addr_string = canonical[i]; |
416 | else if (addr_start) | |
417 | t->addr_string = savestring (addr_start, addr_end - addr_start); | |
418 | ||
419 | trace_mention (t); | |
420 | ||
421 | /* Let the UI know of any additions */ | |
422 | if (create_tracepoint_hook) | |
423 | create_tracepoint_hook (t); | |
424 | } | |
425 | ||
426 | if (sals.nelts > 1) | |
427 | { | |
428 | printf_filtered ("Multiple tracepoints were set.\n"); | |
429 | printf_filtered ("Use 'delete trace' to delete unwanted tracepoints.\n"); | |
430 | } | |
431 | } | |
432 | ||
433 | /* Tell the user we have just set a tracepoint TP. */ | |
434 | ||
435 | static void | |
436 | trace_mention (tp) | |
437 | struct tracepoint *tp; | |
438 | { | |
439 | printf_filtered ("Tracepoint %d", tp->number); | |
440 | ||
441 | if (addressprint || (tp->source_file == NULL)) | |
442 | { | |
443 | printf_filtered (" at "); | |
444 | print_address_numeric (tp->address, 1, gdb_stdout); | |
445 | } | |
446 | if (tp->source_file) | |
447 | printf_filtered (": file %s, line %d.", | |
448 | tp->source_file, tp->line_number); | |
449 | ||
450 | printf_filtered ("\n"); | |
451 | } | |
452 | ||
453 | /* Print information on tracepoint number TPNUM_EXP, or all if omitted. */ | |
454 | ||
455 | static void | |
456 | tracepoints_info (tpnum_exp, from_tty) | |
457 | char *tpnum_exp; | |
458 | int from_tty; | |
459 | { | |
460 | struct tracepoint *t; | |
461 | struct action_line *action; | |
462 | int found_a_tracepoint = 0; | |
463 | char wrap_indent[80]; | |
464 | struct symbol *sym; | |
465 | int tpnum = -1; | |
466 | ||
467 | if (tpnum_exp) | |
468 | tpnum = parse_and_eval_address (tpnum_exp); | |
469 | ||
470 | ALL_TRACEPOINTS (t) | |
471 | if (tpnum == -1 || tpnum == t->number) | |
c5aa993b JM |
472 | { |
473 | extern int addressprint; /* print machine addresses? */ | |
c906108c | 474 | |
c5aa993b JM |
475 | if (!found_a_tracepoint++) |
476 | { | |
477 | printf_filtered ("Num Enb "); | |
478 | if (addressprint) | |
479 | printf_filtered ("Address "); | |
480 | printf_filtered ("PassC StepC What\n"); | |
481 | } | |
482 | strcpy (wrap_indent, " "); | |
483 | if (addressprint) | |
484 | strcat (wrap_indent, " "); | |
485 | ||
486 | printf_filtered ("%-3d %-3s ", t->number, | |
487 | t->enabled == enabled ? "y" : "n"); | |
488 | if (addressprint) | |
489 | printf_filtered ("%s ", | |
490 | local_hex_string_custom ((unsigned long) t->address, | |
491 | "08l")); | |
492 | printf_filtered ("%-5d %-5d ", t->pass_count, t->step_count); | |
493 | ||
494 | if (t->source_file) | |
495 | { | |
496 | sym = find_pc_sect_function (t->address, t->section); | |
497 | if (sym) | |
498 | { | |
499 | fputs_filtered ("in ", gdb_stdout); | |
500 | fputs_filtered (SYMBOL_SOURCE_NAME (sym), gdb_stdout); | |
501 | wrap_here (wrap_indent); | |
502 | fputs_filtered (" at ", gdb_stdout); | |
503 | } | |
504 | fputs_filtered (t->source_file, gdb_stdout); | |
505 | printf_filtered (":%d", t->line_number); | |
506 | } | |
507 | else | |
508 | print_address_symbolic (t->address, gdb_stdout, demangle, " "); | |
c906108c | 509 | |
c5aa993b JM |
510 | printf_filtered ("\n"); |
511 | if (t->actions) | |
512 | { | |
513 | printf_filtered (" Actions for tracepoint %d: \n", t->number); | |
514 | for (action = t->actions; action; action = action->next) | |
515 | { | |
516 | printf_filtered ("\t%s\n", action->action); | |
517 | } | |
518 | } | |
519 | } | |
c906108c SS |
520 | if (!found_a_tracepoint) |
521 | { | |
522 | if (tpnum == -1) | |
c5aa993b | 523 | printf_filtered ("No tracepoints.\n"); |
c906108c | 524 | else |
c5aa993b | 525 | printf_filtered ("No tracepoint number %d.\n", tpnum); |
c906108c SS |
526 | } |
527 | } | |
528 | ||
529 | /* Optimization: the code to parse an enable, disable, or delete TP command | |
530 | is virtually identical except for whether it performs an enable, disable, | |
531 | or delete. Therefore I've combined them into one function with an opcode. | |
c5aa993b JM |
532 | */ |
533 | enum tracepoint_opcode | |
c906108c | 534 | { |
c5aa993b | 535 | enable, |
c906108c SS |
536 | disable, |
537 | delete | |
538 | }; | |
539 | ||
540 | /* This function implements enable, disable and delete. */ | |
541 | static void | |
542 | tracepoint_operation (t, from_tty, opcode) | |
543 | struct tracepoint *t; | |
544 | int from_tty; | |
545 | enum tracepoint_opcode opcode; | |
546 | { | |
547 | struct tracepoint *t2; | |
548 | ||
c5aa993b JM |
549 | switch (opcode) |
550 | { | |
551 | case enable: | |
552 | t->enabled = enabled; | |
553 | if (modify_tracepoint_hook) | |
554 | modify_tracepoint_hook (t); | |
555 | break; | |
556 | case disable: | |
557 | t->enabled = disabled; | |
558 | if (modify_tracepoint_hook) | |
559 | modify_tracepoint_hook (t); | |
560 | break; | |
561 | case delete: | |
562 | if (tracepoint_chain == t) | |
563 | tracepoint_chain = t->next; | |
c906108c | 564 | |
c5aa993b JM |
565 | ALL_TRACEPOINTS (t2) |
566 | if (t2->next == t) | |
c906108c SS |
567 | { |
568 | t2->next = t->next; | |
569 | break; | |
570 | } | |
571 | ||
c5aa993b JM |
572 | /* Let the UI know of any deletions */ |
573 | if (delete_tracepoint_hook) | |
574 | delete_tracepoint_hook (t); | |
c906108c | 575 | |
c5aa993b JM |
576 | if (t->addr_string) |
577 | free (t->addr_string); | |
578 | if (t->source_file) | |
579 | free (t->source_file); | |
580 | if (t->actions) | |
581 | free_actions (t); | |
c906108c | 582 | |
c5aa993b JM |
583 | free (t); |
584 | break; | |
585 | } | |
c906108c SS |
586 | } |
587 | ||
588 | /* Utility: parse a tracepoint number and look it up in the list. */ | |
589 | struct tracepoint * | |
590 | get_tracepoint_by_number (arg) | |
591 | char **arg; | |
592 | { | |
593 | struct tracepoint *t; | |
594 | char *end, *copy; | |
595 | value_ptr val; | |
596 | int tpnum; | |
597 | ||
598 | if (arg == 0) | |
599 | error ("Bad tracepoint argument"); | |
600 | ||
601 | if (*arg == 0 || **arg == 0) /* empty arg means refer to last tp */ | |
602 | tpnum = tracepoint_count; | |
603 | else if (**arg == '$') /* handle convenience variable */ | |
604 | { | |
605 | /* Make a copy of the name, so we can null-terminate it | |
c5aa993b | 606 | to pass to lookup_internalvar(). */ |
c906108c | 607 | end = *arg + 1; |
c5aa993b | 608 | while (isalnum (*end) || *end == '_') |
c906108c SS |
609 | end++; |
610 | copy = (char *) alloca (end - *arg); | |
611 | strncpy (copy, *arg + 1, (end - *arg - 1)); | |
612 | copy[end - *arg - 1] = '\0'; | |
613 | *arg = end; | |
614 | ||
615 | val = value_of_internalvar (lookup_internalvar (copy)); | |
c5aa993b | 616 | if (TYPE_CODE (VALUE_TYPE (val)) != TYPE_CODE_INT) |
c906108c SS |
617 | error ("Convenience variable must have integral type."); |
618 | tpnum = (int) value_as_long (val); | |
619 | } | |
c5aa993b JM |
620 | else |
621 | /* handle tracepoint number */ | |
c906108c SS |
622 | { |
623 | tpnum = strtol (*arg, arg, 0); | |
624 | if (tpnum == 0) /* possible strtol failure */ | |
625 | while (**arg && !isspace (**arg)) | |
626 | (*arg)++; /* advance to next white space, if any */ | |
627 | } | |
628 | ALL_TRACEPOINTS (t) | |
629 | if (t->number == tpnum) | |
c5aa993b JM |
630 | { |
631 | return t; | |
632 | } | |
c906108c SS |
633 | printf_unfiltered ("No tracepoint number %d.\n", tpnum); |
634 | return NULL; | |
635 | } | |
636 | ||
637 | /* Utility: parse a list of tracepoint numbers, and call a func for each. */ | |
638 | static void | |
639 | map_args_over_tracepoints (args, from_tty, opcode) | |
640 | char *args; | |
641 | int from_tty; | |
642 | enum tracepoint_opcode opcode; | |
643 | { | |
644 | struct tracepoint *t, *tmp; | |
645 | int tpnum; | |
646 | char *cp; | |
647 | ||
648 | if (args == 0 || *args == 0) /* do them all */ | |
649 | ALL_TRACEPOINTS_SAFE (t, tmp) | |
650 | tracepoint_operation (t, from_tty, opcode); | |
651 | else | |
652 | while (*args) | |
653 | { | |
c5aa993b | 654 | QUIT; /* give user option to bail out with ^C */ |
7a292a7a SS |
655 | t = get_tracepoint_by_number (&args); |
656 | if (t) | |
c906108c SS |
657 | tracepoint_operation (t, from_tty, opcode); |
658 | while (*args == ' ' || *args == '\t') | |
659 | args++; | |
660 | } | |
661 | } | |
662 | ||
663 | /* The 'enable trace' command enables tracepoints. Not supported by all targets. */ | |
664 | static void | |
665 | enable_trace_command (args, from_tty) | |
666 | char *args; | |
667 | int from_tty; | |
668 | { | |
669 | dont_repeat (); | |
670 | map_args_over_tracepoints (args, from_tty, enable); | |
671 | } | |
672 | ||
673 | /* The 'disable trace' command enables tracepoints. Not supported by all targets. */ | |
674 | static void | |
675 | disable_trace_command (args, from_tty) | |
676 | char *args; | |
677 | int from_tty; | |
678 | { | |
679 | dont_repeat (); | |
680 | map_args_over_tracepoints (args, from_tty, disable); | |
681 | } | |
682 | ||
683 | /* Remove a tracepoint (or all if no argument) */ | |
684 | static void | |
685 | delete_trace_command (args, from_tty) | |
686 | char *args; | |
687 | int from_tty; | |
688 | { | |
689 | dont_repeat (); | |
690 | if (!args || !*args) /* No args implies all tracepoints; */ | |
691 | if (from_tty) /* confirm only if from_tty... */ | |
c5aa993b | 692 | if (tracepoint_chain) /* and if there are tracepoints to delete! */ |
c906108c SS |
693 | if (!query ("Delete all tracepoints? ")) |
694 | return; | |
695 | ||
696 | map_args_over_tracepoints (args, from_tty, delete); | |
697 | } | |
698 | ||
699 | /* Set passcount for tracepoint. | |
700 | ||
701 | First command argument is passcount, second is tracepoint number. | |
702 | If tracepoint number omitted, apply to most recently defined. | |
703 | Also accepts special argument "all". */ | |
704 | ||
705 | static void | |
706 | trace_pass_command (args, from_tty) | |
707 | char *args; | |
708 | int from_tty; | |
709 | { | |
710 | struct tracepoint *t1 = (struct tracepoint *) -1, *t2; | |
711 | unsigned long count; | |
712 | ||
713 | if (args == 0 || *args == 0) | |
714 | error ("PASS command requires an argument (count + optional TP num)"); | |
715 | ||
716 | count = strtoul (args, &args, 10); /* count comes first, then TP num */ | |
717 | ||
718 | while (*args && isspace (*args)) | |
719 | args++; | |
720 | ||
721 | if (*args && strncasecmp (args, "all", 3) == 0) | |
c5aa993b | 722 | args += 3; /* skip special argument "all" */ |
c906108c SS |
723 | else |
724 | t1 = get_tracepoint_by_number (&args); | |
725 | ||
726 | if (*args) | |
727 | error ("Junk at end of arguments."); | |
728 | ||
729 | if (t1 == NULL) | |
c5aa993b | 730 | return; /* error, bad tracepoint number */ |
c906108c SS |
731 | |
732 | ALL_TRACEPOINTS (t2) | |
733 | if (t1 == (struct tracepoint *) -1 || t1 == t2) | |
c5aa993b JM |
734 | { |
735 | t2->pass_count = count; | |
736 | if (modify_tracepoint_hook) | |
737 | modify_tracepoint_hook (t2); | |
738 | if (from_tty) | |
739 | printf_filtered ("Setting tracepoint %d's passcount to %d\n", | |
740 | t2->number, count); | |
741 | } | |
c906108c SS |
742 | } |
743 | ||
744 | /* ACTIONS functions: */ | |
745 | ||
746 | /* Prototypes for action-parsing utility commands */ | |
c5aa993b | 747 | static void read_actions PARAMS ((struct tracepoint *)); |
c906108c | 748 | static char *parse_and_eval_memrange PARAMS ((char *, |
c5aa993b | 749 | CORE_ADDR, |
c906108c SS |
750 | long *, |
751 | bfd_signed_vma *, | |
752 | long *)); | |
753 | ||
754 | /* The three functions: | |
c5aa993b JM |
755 | collect_pseudocommand, |
756 | while_stepping_pseudocommand, and | |
757 | end_actions_pseudocommand | |
c906108c SS |
758 | are placeholders for "commands" that are actually ONLY to be used |
759 | within a tracepoint action list. If the actual function is ever called, | |
760 | it means that somebody issued the "command" at the top level, | |
761 | which is always an error. */ | |
762 | ||
c5aa993b | 763 | static void |
c906108c SS |
764 | end_actions_pseudocommand (args, from_tty) |
765 | char *args; | |
766 | int from_tty; | |
767 | { | |
768 | error ("This command cannot be used at the top level."); | |
769 | } | |
770 | ||
771 | static void | |
772 | while_stepping_pseudocommand (args, from_tty) | |
773 | char *args; | |
774 | int from_tty; | |
775 | { | |
776 | error ("This command can only be used in a tracepoint actions list."); | |
777 | } | |
778 | ||
779 | static void | |
780 | collect_pseudocommand (args, from_tty) | |
781 | char *args; | |
782 | int from_tty; | |
783 | { | |
784 | error ("This command can only be used in a tracepoint actions list."); | |
785 | } | |
786 | ||
787 | /* Enter a list of actions for a tracepoint. */ | |
788 | static void | |
789 | trace_actions_command (args, from_tty) | |
790 | char *args; | |
791 | int from_tty; | |
792 | { | |
793 | struct tracepoint *t; | |
794 | char *actions; | |
795 | char tmpbuf[128]; | |
796 | char *end_msg = "End with a line saying just \"end\"."; | |
797 | ||
7a292a7a SS |
798 | t = get_tracepoint_by_number (&args); |
799 | if (t) | |
c906108c SS |
800 | { |
801 | sprintf (tmpbuf, "Enter actions for tracepoint %d, one per line.", | |
802 | t->number); | |
803 | ||
804 | if (from_tty) | |
805 | { | |
806 | if (readline_begin_hook) | |
807 | (*readline_begin_hook) ("%s %s\n", tmpbuf, end_msg); | |
808 | else if (input_from_terminal_p ()) | |
809 | printf_filtered ("%s\n%s\n", tmpbuf, end_msg); | |
810 | } | |
811 | ||
812 | free_actions (t); | |
813 | t->step_count = 0; /* read_actions may set this */ | |
814 | read_actions (t); | |
815 | ||
816 | if (readline_end_hook) | |
817 | (*readline_end_hook) (); | |
818 | ||
819 | /* tracepoints_changed () */ | |
820 | } | |
821 | /* else error, just return; */ | |
822 | } | |
823 | ||
824 | /* worker function */ | |
825 | static void | |
826 | read_actions (t) | |
827 | struct tracepoint *t; | |
828 | { | |
829 | char *line; | |
830 | char *prompt1 = "> ", *prompt2 = " > "; | |
831 | char *prompt = prompt1; | |
832 | enum actionline_type linetype; | |
833 | extern FILE *instream; | |
834 | struct action_line *next = NULL, *temp; | |
835 | struct cleanup *old_chain; | |
836 | ||
837 | /* Control-C quits instantly if typed while in this loop | |
838 | since it should not wait until the user types a newline. */ | |
839 | immediate_quit++; | |
840 | #ifdef STOP_SIGNAL | |
841 | if (job_control) | |
0f71a2f6 JM |
842 | { |
843 | if (async_p) | |
844 | signal (STOP_SIGNAL, handle_stop_sig); | |
845 | else | |
846 | signal (STOP_SIGNAL, stop_sig); | |
c5aa993b | 847 | } |
c906108c SS |
848 | #endif |
849 | old_chain = make_cleanup ((make_cleanup_func) free_actions, (void *) t); | |
850 | while (1) | |
851 | { | |
852 | /* Make sure that all output has been output. Some machines may let | |
c5aa993b | 853 | you get away with leaving out some of the gdb_flush, but not all. */ |
c906108c SS |
854 | wrap_here (""); |
855 | gdb_flush (gdb_stdout); | |
856 | gdb_flush (gdb_stderr); | |
857 | ||
858 | if (readline_hook && instream == NULL) | |
859 | line = (*readline_hook) (prompt); | |
860 | else if (instream == stdin && ISATTY (instream)) | |
861 | { | |
862 | line = readline (prompt); | |
c5aa993b | 863 | if (line && *line) /* add it to command history */ |
c906108c SS |
864 | add_history (line); |
865 | } | |
866 | else | |
867 | line = gdb_readline (0); | |
868 | ||
869 | linetype = validate_actionline (&line, t); | |
870 | if (linetype == BADLINE) | |
c5aa993b | 871 | continue; /* already warned -- collect another line */ |
c906108c SS |
872 | |
873 | temp = xmalloc (sizeof (struct action_line)); | |
874 | temp->next = NULL; | |
875 | temp->action = line; | |
876 | ||
877 | if (next == NULL) /* first action for this tracepoint? */ | |
878 | t->actions = next = temp; | |
879 | else | |
880 | { | |
881 | next->next = temp; | |
882 | next = temp; | |
883 | } | |
884 | ||
885 | if (linetype == STEPPING) /* begin "while-stepping" */ | |
7a292a7a SS |
886 | { |
887 | if (prompt == prompt2) | |
888 | { | |
889 | warning ("Already processing 'while-stepping'"); | |
890 | continue; | |
891 | } | |
892 | else | |
893 | prompt = prompt2; /* change prompt for stepping actions */ | |
894 | } | |
c906108c | 895 | else if (linetype == END) |
7a292a7a SS |
896 | { |
897 | if (prompt == prompt2) | |
898 | { | |
899 | prompt = prompt1; /* end of single-stepping actions */ | |
900 | } | |
901 | else | |
c5aa993b | 902 | { /* end of actions */ |
7a292a7a SS |
903 | if (t->actions->next == NULL) |
904 | { | |
905 | /* an "end" all by itself with no other actions means | |
906 | this tracepoint has no actions. Discard empty list. */ | |
907 | free_actions (t); | |
908 | } | |
909 | break; | |
910 | } | |
911 | } | |
c906108c SS |
912 | } |
913 | #ifdef STOP_SIGNAL | |
914 | if (job_control) | |
915 | signal (STOP_SIGNAL, SIG_DFL); | |
916 | #endif | |
917 | immediate_quit = 0; | |
918 | discard_cleanups (old_chain); | |
919 | } | |
920 | ||
921 | /* worker function */ | |
922 | enum actionline_type | |
923 | validate_actionline (line, t) | |
924 | char **line; | |
925 | struct tracepoint *t; | |
926 | { | |
927 | struct cmd_list_element *c; | |
928 | struct expression *exp = NULL; | |
929 | value_ptr temp, temp2; | |
930 | struct cleanup *old_chain = NULL; | |
931 | char *p; | |
932 | ||
c5aa993b | 933 | for (p = *line; isspace (*p);) |
c906108c SS |
934 | p++; |
935 | ||
936 | /* symbol lookup etc. */ | |
c5aa993b | 937 | if (*p == '\0') /* empty line: just prompt for another line. */ |
c906108c SS |
938 | return BADLINE; |
939 | ||
c5aa993b | 940 | if (*p == '#') /* comment line */ |
c906108c SS |
941 | return GENERIC; |
942 | ||
943 | c = lookup_cmd (&p, cmdlist, "", -1, 1); | |
944 | if (c == 0) | |
945 | { | |
946 | warning ("'%s' is not an action that I know, or is ambiguous.", p); | |
947 | return BADLINE; | |
948 | } | |
c5aa993b | 949 | |
c906108c SS |
950 | if (c->function.cfunc == collect_pseudocommand) |
951 | { | |
952 | struct agent_expr *aexpr; | |
953 | struct agent_reqs areqs; | |
954 | ||
c5aa993b JM |
955 | do |
956 | { /* repeat over a comma-separated list */ | |
957 | QUIT; /* allow user to bail out with ^C */ | |
958 | while (isspace (*p)) | |
959 | p++; | |
c906108c | 960 | |
c5aa993b JM |
961 | if (*p == '$') /* look for special pseudo-symbols */ |
962 | { | |
963 | long typecode, size; | |
964 | bfd_signed_vma offset; | |
c906108c | 965 | |
c5aa993b JM |
966 | if ((0 == strncasecmp ("reg", p + 1, 3)) || |
967 | (0 == strncasecmp ("arg", p + 1, 3)) || | |
968 | (0 == strncasecmp ("loc", p + 1, 3))) | |
969 | { | |
970 | p = strchr (p, ','); | |
971 | continue; | |
972 | } | |
973 | /* else fall thru, treat p as an expression and parse it! */ | |
974 | } | |
975 | exp = parse_exp_1 (&p, block_for_pc (t->address), 1); | |
976 | old_chain = make_cleanup ((make_cleanup_func) free_current_contents, | |
977 | &exp); | |
c906108c | 978 | |
c5aa993b JM |
979 | if (exp->elts[0].opcode == OP_VAR_VALUE) |
980 | { | |
981 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) | |
982 | { | |
983 | warning ("%s is constant (value %d): will not be collected.", | |
984 | SYMBOL_NAME (exp->elts[2].symbol), | |
985 | SYMBOL_VALUE (exp->elts[2].symbol)); | |
986 | return BADLINE; | |
987 | } | |
988 | else if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_OPTIMIZED_OUT) | |
989 | { | |
990 | warning ("%s is optimized away and cannot be collected.", | |
991 | SYMBOL_NAME (exp->elts[2].symbol)); | |
992 | return BADLINE; | |
993 | } | |
994 | } | |
c906108c | 995 | |
c5aa993b JM |
996 | /* we have something to collect, make sure that the expr to |
997 | bytecode translator can handle it and that it's not too long */ | |
998 | aexpr = gen_trace_for_expr (t->address, exp); | |
999 | (void) make_cleanup ((make_cleanup_func) free_agent_expr, aexpr); | |
c906108c | 1000 | |
c5aa993b JM |
1001 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
1002 | error ("expression too complicated, try simplifying"); | |
c906108c | 1003 | |
c5aa993b JM |
1004 | ax_reqs (aexpr, &areqs); |
1005 | (void) make_cleanup (free, areqs.reg_mask); | |
c906108c | 1006 | |
c5aa993b JM |
1007 | if (areqs.flaw != agent_flaw_none) |
1008 | error ("malformed expression"); | |
c906108c | 1009 | |
c5aa993b JM |
1010 | if (areqs.min_height < 0) |
1011 | error ("gdb: Internal error: expression has min height < 0"); | |
c906108c | 1012 | |
c5aa993b JM |
1013 | if (areqs.max_height > 20) |
1014 | error ("expression too complicated, try simplifying"); | |
c906108c | 1015 | |
c5aa993b JM |
1016 | do_cleanups (old_chain); |
1017 | } | |
1018 | while (p && *p++ == ','); | |
c906108c SS |
1019 | return GENERIC; |
1020 | } | |
1021 | else if (c->function.cfunc == while_stepping_pseudocommand) | |
1022 | { | |
c5aa993b | 1023 | char *steparg; /* in case warning is necessary */ |
c906108c SS |
1024 | |
1025 | while (isspace (*p)) | |
1026 | p++; | |
1027 | steparg = p; | |
1028 | ||
1029 | if (*p == '\0' || | |
1030 | (t->step_count = strtol (p, &p, 0)) == 0) | |
1031 | { | |
1032 | warning ("bad step-count: command ignored.", *line); | |
1033 | return BADLINE; | |
1034 | } | |
1035 | return STEPPING; | |
1036 | } | |
1037 | else if (c->function.cfunc == end_actions_pseudocommand) | |
1038 | return END; | |
1039 | else | |
1040 | { | |
1041 | warning ("'%s' is not a supported tracepoint action.", *line); | |
1042 | return BADLINE; | |
1043 | } | |
1044 | } | |
1045 | ||
1046 | /* worker function */ | |
c5aa993b | 1047 | void |
c906108c SS |
1048 | free_actions (t) |
1049 | struct tracepoint *t; | |
1050 | { | |
1051 | struct action_line *line, *next; | |
1052 | ||
1053 | for (line = t->actions; line; line = next) | |
1054 | { | |
1055 | next = line->next; | |
c5aa993b | 1056 | if (line->action) |
c906108c SS |
1057 | free (line->action); |
1058 | free (line); | |
1059 | } | |
1060 | t->actions = NULL; | |
1061 | } | |
1062 | ||
c5aa993b JM |
1063 | struct memrange |
1064 | { | |
1065 | int type; /* 0 for absolute memory range, else basereg number */ | |
c906108c SS |
1066 | bfd_signed_vma start; |
1067 | bfd_signed_vma end; | |
1068 | }; | |
1069 | ||
c5aa993b JM |
1070 | struct collection_list |
1071 | { | |
1072 | unsigned char regs_mask[8]; /* room for up to 256 regs */ | |
1073 | long listsize; | |
1074 | long next_memrange; | |
1075 | struct memrange *list; | |
1076 | long aexpr_listsize; /* size of array pointed to by expr_list elt */ | |
1077 | long next_aexpr_elt; | |
1078 | struct agent_expr **aexpr_list; | |
1079 | ||
1080 | } | |
1081 | tracepoint_list, stepping_list; | |
c906108c SS |
1082 | |
1083 | /* MEMRANGE functions: */ | |
1084 | ||
1085 | static int memrange_cmp PARAMS ((const void *, const void *)); | |
1086 | ||
1087 | /* compare memranges for qsort */ | |
1088 | static int | |
1089 | memrange_cmp (va, vb) | |
1090 | const void *va; | |
1091 | const void *vb; | |
1092 | { | |
1093 | const struct memrange *a = va, *b = vb; | |
1094 | ||
1095 | if (a->type < b->type) | |
1096 | return -1; | |
1097 | if (a->type > b->type) | |
c5aa993b | 1098 | return 1; |
c906108c SS |
1099 | if (a->type == 0) |
1100 | { | |
c5aa993b JM |
1101 | if ((bfd_vma) a->start < (bfd_vma) b->start) |
1102 | return -1; | |
1103 | if ((bfd_vma) a->start > (bfd_vma) b->start) | |
1104 | return 1; | |
c906108c SS |
1105 | } |
1106 | else | |
1107 | { | |
c5aa993b | 1108 | if (a->start < b->start) |
c906108c | 1109 | return -1; |
c5aa993b JM |
1110 | if (a->start > b->start) |
1111 | return 1; | |
c906108c SS |
1112 | } |
1113 | return 0; | |
1114 | } | |
1115 | ||
1116 | /* Sort the memrange list using qsort, and merge adjacent memranges */ | |
1117 | static void | |
1118 | memrange_sortmerge (memranges) | |
1119 | struct collection_list *memranges; | |
1120 | { | |
1121 | int a, b; | |
1122 | ||
c5aa993b | 1123 | qsort (memranges->list, memranges->next_memrange, |
c906108c SS |
1124 | sizeof (struct memrange), memrange_cmp); |
1125 | if (memranges->next_memrange > 0) | |
1126 | { | |
1127 | for (a = 0, b = 1; b < memranges->next_memrange; b++) | |
1128 | { | |
1129 | if (memranges->list[a].type == memranges->list[b].type && | |
c5aa993b | 1130 | memranges->list[b].start - memranges->list[a].end <= |
c906108c SS |
1131 | MAX_REGISTER_VIRTUAL_SIZE) |
1132 | { | |
1133 | /* memrange b starts before memrange a ends; merge them. */ | |
1134 | if (memranges->list[b].end > memranges->list[a].end) | |
1135 | memranges->list[a].end = memranges->list[b].end; | |
1136 | continue; /* next b, same a */ | |
1137 | } | |
1138 | a++; /* next a */ | |
1139 | if (a != b) | |
c5aa993b | 1140 | memcpy (&memranges->list[a], &memranges->list[b], |
c906108c SS |
1141 | sizeof (struct memrange)); |
1142 | } | |
1143 | memranges->next_memrange = a + 1; | |
1144 | } | |
1145 | } | |
1146 | ||
1147 | /* Add a register to a collection list */ | |
392a587b | 1148 | static void |
c906108c SS |
1149 | add_register (collection, regno) |
1150 | struct collection_list *collection; | |
1151 | unsigned long regno; | |
1152 | { | |
1153 | if (info_verbose) | |
1154 | printf_filtered ("collect register %d\n", regno); | |
1155 | if (regno > (8 * sizeof (collection->regs_mask))) | |
1156 | error ("Internal: register number %d too large for tracepoint", | |
1157 | regno); | |
c5aa993b | 1158 | collection->regs_mask[regno / 8] |= 1 << (regno % 8); |
c906108c SS |
1159 | } |
1160 | ||
1161 | /* Add a memrange to a collection list */ | |
1162 | static void | |
1163 | add_memrange (memranges, type, base, len) | |
1164 | struct collection_list *memranges; | |
1165 | int type; | |
1166 | bfd_signed_vma base; | |
1167 | unsigned long len; | |
1168 | { | |
1169 | if (info_verbose) | |
1170 | printf_filtered ("(%d,0x%x,%d)\n", type, base, len); | |
1171 | /* type: 0 == memory, n == basereg */ | |
c5aa993b | 1172 | memranges->list[memranges->next_memrange].type = type; |
c906108c SS |
1173 | /* base: addr if memory, offset if reg relative. */ |
1174 | memranges->list[memranges->next_memrange].start = base; | |
1175 | /* len: we actually save end (base + len) for convenience */ | |
c5aa993b | 1176 | memranges->list[memranges->next_memrange].end = base + len; |
c906108c SS |
1177 | memranges->next_memrange++; |
1178 | if (memranges->next_memrange >= memranges->listsize) | |
1179 | { | |
1180 | memranges->listsize *= 2; | |
c5aa993b | 1181 | memranges->list = xrealloc (memranges->list, |
c906108c SS |
1182 | memranges->listsize); |
1183 | } | |
1184 | ||
c5aa993b | 1185 | if (type != -1) /* better collect the base register! */ |
c906108c SS |
1186 | add_register (memranges, type); |
1187 | } | |
1188 | ||
1189 | /* Add a symbol to a collection list */ | |
1190 | static void | |
1191 | collect_symbol (collect, sym, frame_regno, frame_offset) | |
1192 | struct collection_list *collect; | |
1193 | struct symbol *sym; | |
1194 | long frame_regno; | |
1195 | long frame_offset; | |
1196 | { | |
c5aa993b JM |
1197 | unsigned long len; |
1198 | unsigned long reg; | |
c906108c SS |
1199 | bfd_signed_vma offset; |
1200 | ||
c5aa993b JM |
1201 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
1202 | switch (SYMBOL_CLASS (sym)) | |
1203 | { | |
1204 | default: | |
1205 | printf_filtered ("%s: don't know symbol class %d\n", | |
1206 | SYMBOL_NAME (sym), SYMBOL_CLASS (sym)); | |
1207 | break; | |
1208 | case LOC_CONST: | |
1209 | printf_filtered ("%s is constant, value is %d: will not be collected.\n", | |
1210 | SYMBOL_NAME (sym), SYMBOL_VALUE (sym)); | |
1211 | break; | |
1212 | case LOC_STATIC: | |
1213 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
1214 | if (info_verbose) | |
1215 | printf_filtered ("LOC_STATIC %s: collect %d bytes at 0x%08x\n", | |
1216 | SYMBOL_NAME (sym), len, offset); | |
1217 | add_memrange (collect, -1, offset, len); /* 0 == memory */ | |
1218 | break; | |
1219 | case LOC_REGISTER: | |
1220 | case LOC_REGPARM: | |
1221 | reg = SYMBOL_VALUE (sym); | |
1222 | if (info_verbose) | |
1223 | printf_filtered ("LOC_REG[parm] %s: ", SYMBOL_NAME (sym)); | |
1224 | add_register (collect, reg); | |
1225 | /* check for doubles stored in two registers */ | |
1226 | /* FIXME: how about larger types stored in 3 or more regs? */ | |
1227 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT && | |
1228 | len > REGISTER_RAW_SIZE (reg)) | |
1229 | add_register (collect, reg + 1); | |
1230 | break; | |
1231 | case LOC_REF_ARG: | |
1232 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); | |
1233 | printf_filtered (" (will not collect %s)\n", | |
1234 | SYMBOL_NAME (sym)); | |
1235 | break; | |
1236 | case LOC_ARG: | |
1237 | reg = frame_regno; | |
1238 | offset = frame_offset + SYMBOL_VALUE (sym); | |
1239 | if (info_verbose) | |
1240 | { | |
1241 | printf_filtered ("LOC_LOCAL %s: Collect %d bytes at offset", | |
1242 | SYMBOL_NAME (sym), len); | |
1243 | printf_filtered (" %d from frame ptr reg %d\n", offset, reg); | |
1244 | } | |
1245 | add_memrange (collect, reg, offset, len); | |
1246 | break; | |
1247 | case LOC_REGPARM_ADDR: | |
1248 | reg = SYMBOL_VALUE (sym); | |
1249 | offset = 0; | |
1250 | if (info_verbose) | |
1251 | { | |
1252 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %d bytes at offset", | |
1253 | SYMBOL_NAME (sym), len); | |
1254 | printf_filtered (" %d from reg %d\n", offset, reg); | |
1255 | } | |
1256 | add_memrange (collect, reg, offset, len); | |
1257 | break; | |
1258 | case LOC_LOCAL: | |
1259 | case LOC_LOCAL_ARG: | |
1260 | reg = frame_regno; | |
1261 | offset = frame_offset + SYMBOL_VALUE (sym); | |
1262 | if (info_verbose) | |
1263 | { | |
1264 | printf_filtered ("LOC_LOCAL %s: Collect %d bytes at offset", | |
1265 | SYMBOL_NAME (sym), len); | |
1266 | printf_filtered (" %d from frame ptr reg %d\n", offset, reg); | |
1267 | } | |
1268 | add_memrange (collect, reg, offset, len); | |
1269 | break; | |
1270 | case LOC_BASEREG: | |
1271 | case LOC_BASEREG_ARG: | |
1272 | reg = SYMBOL_BASEREG (sym); | |
1273 | offset = SYMBOL_VALUE (sym); | |
1274 | if (info_verbose) | |
1275 | { | |
1276 | printf_filtered ("LOC_BASEREG %s: collect %d bytes at offset %d from basereg %d\n", | |
1277 | SYMBOL_NAME (sym), len, offset, reg); | |
1278 | } | |
1279 | add_memrange (collect, reg, offset, len); | |
1280 | break; | |
1281 | case LOC_UNRESOLVED: | |
1282 | printf_filtered ("Don't know LOC_UNRESOLVED %s\n", SYMBOL_NAME (sym)); | |
1283 | break; | |
1284 | case LOC_OPTIMIZED_OUT: | |
1285 | printf_filtered ("%s has been optimized out of existance.\n", | |
1286 | SYMBOL_NAME (sym)); | |
1287 | break; | |
1288 | } | |
c906108c SS |
1289 | } |
1290 | ||
1291 | /* Add all locals (or args) symbols to collection list */ | |
1292 | static void | |
1293 | add_local_symbols (collect, pc, frame_regno, frame_offset, type) | |
1294 | struct collection_list *collect; | |
1295 | CORE_ADDR pc; | |
1296 | long frame_regno; | |
1297 | long frame_offset; | |
1298 | int type; | |
1299 | { | |
1300 | struct symbol *sym; | |
c5aa993b | 1301 | struct block *block; |
c906108c SS |
1302 | int i, nsyms, count = 0; |
1303 | ||
1304 | block = block_for_pc (pc); | |
1305 | while (block != 0) | |
1306 | { | |
c5aa993b | 1307 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
1308 | nsyms = BLOCK_NSYMS (block); |
1309 | for (i = 0; i < nsyms; i++) | |
1310 | { | |
1311 | sym = BLOCK_SYM (block, i); | |
c5aa993b JM |
1312 | switch (SYMBOL_CLASS (sym)) |
1313 | { | |
1314 | case LOC_LOCAL: | |
1315 | case LOC_STATIC: | |
1316 | case LOC_REGISTER: | |
1317 | case LOC_BASEREG: | |
1318 | if (type == 'L') /* collecting Locals */ | |
1319 | { | |
1320 | count++; | |
1321 | collect_symbol (collect, sym, frame_regno, frame_offset); | |
1322 | } | |
1323 | break; | |
1324 | case LOC_ARG: | |
1325 | case LOC_LOCAL_ARG: | |
1326 | case LOC_REF_ARG: | |
1327 | case LOC_REGPARM: | |
1328 | case LOC_REGPARM_ADDR: | |
1329 | case LOC_BASEREG_ARG: | |
1330 | if (type == 'A') /* collecting Arguments */ | |
1331 | { | |
1332 | count++; | |
1333 | collect_symbol (collect, sym, frame_regno, frame_offset); | |
1334 | } | |
1335 | } | |
c906108c SS |
1336 | } |
1337 | if (BLOCK_FUNCTION (block)) | |
1338 | break; | |
1339 | else | |
1340 | block = BLOCK_SUPERBLOCK (block); | |
1341 | } | |
1342 | if (count == 0) | |
1343 | warning ("No %s found in scope.", type == 'L' ? "locals" : "args"); | |
1344 | } | |
1345 | ||
1346 | /* worker function */ | |
1347 | static void | |
1348 | clear_collection_list (list) | |
1349 | struct collection_list *list; | |
1350 | { | |
1351 | int ndx; | |
1352 | ||
1353 | list->next_memrange = 0; | |
1354 | for (ndx = 0; ndx < list->next_aexpr_elt; ndx++) | |
1355 | { | |
c5aa993b | 1356 | free_agent_expr (list->aexpr_list[ndx]); |
c906108c SS |
1357 | list->aexpr_list[ndx] = NULL; |
1358 | } | |
1359 | list->next_aexpr_elt = 0; | |
1360 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); | |
1361 | } | |
1362 | ||
1363 | /* reduce a collection list to string form (for gdb protocol) */ | |
1364 | static char ** | |
1365 | stringify_collection_list (list, string) | |
1366 | struct collection_list *list; | |
1367 | char *string; | |
1368 | { | |
1369 | char temp_buf[2048]; | |
1370 | int count; | |
1371 | int ndx = 0; | |
1372 | char *(*str_list)[]; | |
1373 | char *end; | |
c5aa993b | 1374 | long i; |
c906108c SS |
1375 | |
1376 | count = 1 + list->next_memrange + list->next_aexpr_elt + 1; | |
c5aa993b | 1377 | str_list = (char *(*)[]) xmalloc (count * sizeof (char *)); |
c906108c SS |
1378 | |
1379 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) | |
1380 | if (list->regs_mask[i] != 0) /* skip leading zeroes in regs_mask */ | |
1381 | break; | |
1382 | if (list->regs_mask[i] != 0) /* prepare to send regs_mask to the stub */ | |
1383 | { | |
1384 | if (info_verbose) | |
1385 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
1386 | end = temp_buf; | |
c5aa993b | 1387 | *end++ = 'R'; |
c906108c SS |
1388 | for (; i >= 0; i--) |
1389 | { | |
c5aa993b | 1390 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
1391 | if (info_verbose) |
1392 | printf_filtered ("%02X", list->regs_mask[i]); | |
c5aa993b | 1393 | sprintf (end, "%02X", list->regs_mask[i]); |
c906108c SS |
1394 | end += 2; |
1395 | } | |
c5aa993b | 1396 | (*str_list)[ndx] = savestring (temp_buf, end - temp_buf); |
c906108c SS |
1397 | ndx++; |
1398 | } | |
1399 | if (info_verbose) | |
1400 | printf_filtered ("\n"); | |
1401 | if (list->next_memrange > 0 && info_verbose) | |
1402 | printf_filtered ("Collecting memranges: \n"); | |
1403 | for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++) | |
1404 | { | |
1405 | QUIT; /* allow user to bail out with ^C */ | |
1406 | if (info_verbose) | |
c5aa993b JM |
1407 | printf_filtered ("(%d, 0x%x, %d)\n", |
1408 | list->list[i].type, | |
1409 | list->list[i].start, | |
c906108c SS |
1410 | list->list[i].end - list->list[i].start); |
1411 | if (count + 27 > MAX_AGENT_EXPR_LEN) | |
1412 | { | |
c5aa993b | 1413 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1414 | ndx++; |
1415 | count = 0; | |
1416 | end = temp_buf; | |
1417 | } | |
c5aa993b JM |
1418 | sprintf (end, "M%X,%X,%X", |
1419 | list->list[i].type, | |
1420 | list->list[i].start, | |
c906108c SS |
1421 | list->list[i].end - list->list[i].start); |
1422 | count += strlen (end); | |
1423 | end += strlen (end); | |
1424 | } | |
1425 | ||
1426 | for (i = 0; i < list->next_aexpr_elt; i++) | |
1427 | { | |
1428 | QUIT; /* allow user to bail out with ^C */ | |
1429 | if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN) | |
1430 | { | |
c5aa993b | 1431 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1432 | ndx++; |
1433 | count = 0; | |
1434 | end = temp_buf; | |
1435 | } | |
1436 | sprintf (end, "X%08X,", list->aexpr_list[i]->len); | |
1437 | end += 10; /* 'X' + 8 hex digits + ',' */ | |
1438 | count += 10; | |
1439 | ||
c5aa993b | 1440 | end = mem2hex (list->aexpr_list[i]->buf, end, list->aexpr_list[i]->len); |
c906108c SS |
1441 | count += 2 * list->aexpr_list[i]->len; |
1442 | } | |
1443 | ||
1444 | if (count != 0) | |
1445 | { | |
c5aa993b | 1446 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1447 | ndx++; |
1448 | count = 0; | |
1449 | end = temp_buf; | |
1450 | } | |
1451 | (*str_list)[ndx] = NULL; | |
1452 | ||
1453 | if (ndx == 0) | |
1454 | return NULL; | |
1455 | else | |
1456 | return *str_list; | |
1457 | } | |
1458 | ||
392a587b JM |
1459 | static void |
1460 | free_actions_list_cleanup_wrapper (al) | |
1461 | void *al; | |
1462 | { | |
1463 | free_actions_list (al); | |
1464 | } | |
1465 | ||
1466 | static void | |
c5aa993b | 1467 | free_actions_list (actions_list) |
c906108c SS |
1468 | char **actions_list; |
1469 | { | |
1470 | int ndx; | |
1471 | ||
1472 | if (actions_list == 0) | |
1473 | return; | |
1474 | ||
1475 | for (ndx = 0; actions_list[ndx]; ndx++) | |
c5aa993b | 1476 | free (actions_list[ndx]); |
c906108c | 1477 | |
c5aa993b | 1478 | free (actions_list); |
c906108c SS |
1479 | } |
1480 | ||
1481 | /* render all actions into gdb protocol */ | |
1482 | static void | |
1483 | encode_actions (t, tdp_actions, stepping_actions) | |
c5aa993b JM |
1484 | struct tracepoint *t; |
1485 | char ***tdp_actions; | |
1486 | char ***stepping_actions; | |
c906108c | 1487 | { |
c5aa993b JM |
1488 | static char tdp_buff[2048], step_buff[2048]; |
1489 | char *action_exp; | |
1490 | struct expression *exp = NULL; | |
c906108c | 1491 | struct action_line *action; |
c5aa993b JM |
1492 | bfd_signed_vma offset; |
1493 | long i; | |
1494 | value_ptr tempval; | |
1495 | struct collection_list *collect; | |
c906108c SS |
1496 | struct cmd_list_element *cmd; |
1497 | struct agent_expr *aexpr; | |
c5aa993b | 1498 | long frame_reg, frame_offset; |
c906108c SS |
1499 | |
1500 | ||
1501 | clear_collection_list (&tracepoint_list); | |
1502 | clear_collection_list (&stepping_list); | |
1503 | collect = &tracepoint_list; | |
1504 | ||
1505 | *tdp_actions = NULL; | |
1506 | *stepping_actions = NULL; | |
1507 | ||
1508 | TARGET_VIRTUAL_FRAME_POINTER (t->address, &frame_reg, &frame_offset); | |
1509 | ||
1510 | for (action = t->actions; action; action = action->next) | |
1511 | { | |
1512 | QUIT; /* allow user to bail out with ^C */ | |
1513 | action_exp = action->action; | |
1514 | while (isspace (*action_exp)) | |
1515 | action_exp++; | |
1516 | ||
1517 | if (*action_exp == '#') /* comment line */ | |
1518 | return; | |
1519 | ||
1520 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
1521 | if (cmd == 0) | |
1522 | error ("Bad action list item: %s", action_exp); | |
1523 | ||
1524 | if (cmd->function.cfunc == collect_pseudocommand) | |
1525 | { | |
c5aa993b JM |
1526 | do |
1527 | { /* repeat over a comma-separated list */ | |
1528 | QUIT; /* allow user to bail out with ^C */ | |
1529 | while (isspace (*action_exp)) | |
1530 | action_exp++; | |
c906108c | 1531 | |
c5aa993b JM |
1532 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1533 | { | |
1534 | for (i = 0; i < NUM_REGS; i++) | |
1535 | add_register (collect, i); | |
1536 | action_exp = strchr (action_exp, ','); /* more? */ | |
1537 | } | |
1538 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1539 | { | |
1540 | add_local_symbols (collect, | |
1541 | t->address, | |
1542 | frame_reg, | |
1543 | frame_offset, | |
1544 | 'A'); | |
1545 | action_exp = strchr (action_exp, ','); /* more? */ | |
1546 | } | |
1547 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1548 | { | |
1549 | add_local_symbols (collect, | |
1550 | t->address, | |
1551 | frame_reg, | |
1552 | frame_offset, | |
1553 | 'L'); | |
1554 | action_exp = strchr (action_exp, ','); /* more? */ | |
1555 | } | |
1556 | else | |
1557 | { | |
1558 | unsigned long addr, len; | |
1559 | struct cleanup *old_chain = NULL; | |
1560 | struct cleanup *old_chain1 = NULL; | |
1561 | struct agent_reqs areqs; | |
1562 | ||
1563 | exp = parse_exp_1 (&action_exp, block_for_pc (t->address), 1); | |
1564 | old_chain = make_cleanup ((make_cleanup_func) | |
1565 | free_current_contents, &exp); | |
c906108c | 1566 | |
c5aa993b JM |
1567 | switch (exp->elts[0].opcode) |
1568 | { | |
1569 | case OP_REGISTER: | |
1570 | i = exp->elts[1].longconst; | |
1571 | if (info_verbose) | |
1572 | printf_filtered ("OP_REGISTER: "); | |
1573 | add_register (collect, i); | |
1574 | break; | |
1575 | ||
1576 | case UNOP_MEMVAL: | |
1577 | /* safe because we know it's a simple expression */ | |
1578 | tempval = evaluate_expression (exp); | |
1579 | addr = VALUE_ADDRESS (tempval) + VALUE_OFFSET (tempval); | |
1580 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); | |
1581 | add_memrange (collect, -1, addr, len); | |
1582 | break; | |
1583 | ||
1584 | case OP_VAR_VALUE: | |
1585 | collect_symbol (collect, | |
1586 | exp->elts[2].symbol, | |
1587 | frame_reg, | |
1588 | frame_offset); | |
1589 | break; | |
1590 | ||
1591 | default: /* full-fledged expression */ | |
1592 | aexpr = gen_trace_for_expr (t->address, exp); | |
1593 | ||
1594 | old_chain1 = make_cleanup ((make_cleanup_func) | |
1595 | free_agent_expr, aexpr); | |
1596 | ||
1597 | ax_reqs (aexpr, &areqs); | |
1598 | if (areqs.flaw != agent_flaw_none) | |
1599 | error ("malformed expression"); | |
1600 | ||
1601 | if (areqs.min_height < 0) | |
1602 | error ("gdb: Internal error: expression has min height < 0"); | |
1603 | if (areqs.max_height > 20) | |
1604 | error ("expression too complicated, try simplifying"); | |
1605 | ||
1606 | discard_cleanups (old_chain1); | |
1607 | add_aexpr (collect, aexpr); | |
1608 | ||
1609 | /* take care of the registers */ | |
1610 | if (areqs.reg_mask_len > 0) | |
c906108c | 1611 | { |
c5aa993b JM |
1612 | int ndx1; |
1613 | int ndx2; | |
1614 | ||
1615 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) | |
c906108c | 1616 | { |
c5aa993b JM |
1617 | QUIT; /* allow user to bail out with ^C */ |
1618 | if (areqs.reg_mask[ndx1] != 0) | |
1619 | { | |
1620 | /* assume chars have 8 bits */ | |
1621 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
1622 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) | |
1623 | /* it's used -- record it */ | |
1624 | add_register (collect, ndx1 * 8 + ndx2); | |
1625 | } | |
c906108c SS |
1626 | } |
1627 | } | |
c5aa993b JM |
1628 | break; |
1629 | } /* switch */ | |
1630 | do_cleanups (old_chain); | |
1631 | } /* do */ | |
1632 | } | |
1633 | while (action_exp && *action_exp++ == ','); | |
1634 | } /* if */ | |
c906108c SS |
1635 | else if (cmd->function.cfunc == while_stepping_pseudocommand) |
1636 | { | |
1637 | collect = &stepping_list; | |
1638 | } | |
1639 | else if (cmd->function.cfunc == end_actions_pseudocommand) | |
1640 | { | |
1641 | if (collect == &stepping_list) /* end stepping actions */ | |
1642 | collect = &tracepoint_list; | |
1643 | else | |
c5aa993b | 1644 | break; /* end tracepoint actions */ |
c906108c | 1645 | } |
c5aa993b JM |
1646 | } /* for */ |
1647 | memrange_sortmerge (&tracepoint_list); | |
1648 | memrange_sortmerge (&stepping_list); | |
c906108c | 1649 | |
c5aa993b JM |
1650 | *tdp_actions = stringify_collection_list (&tracepoint_list, &tdp_buff); |
1651 | *stepping_actions = stringify_collection_list (&stepping_list, &step_buff); | |
c906108c SS |
1652 | } |
1653 | ||
1654 | static void | |
c5aa993b | 1655 | add_aexpr (collect, aexpr) |
c906108c SS |
1656 | struct collection_list *collect; |
1657 | struct agent_expr *aexpr; | |
1658 | { | |
1659 | if (collect->next_aexpr_elt >= collect->aexpr_listsize) | |
1660 | { | |
1661 | collect->aexpr_list = | |
1662 | xrealloc (collect->aexpr_list, | |
c5aa993b | 1663 | 2 * collect->aexpr_listsize * sizeof (struct agent_expr *)); |
c906108c SS |
1664 | collect->aexpr_listsize *= 2; |
1665 | } | |
1666 | collect->aexpr_list[collect->next_aexpr_elt] = aexpr; | |
1667 | collect->next_aexpr_elt++; | |
1668 | } | |
1669 | ||
1670 | static char target_buf[2048]; | |
1671 | ||
1672 | /* Set "transparent" memory ranges | |
1673 | ||
1674 | Allow trace mechanism to treat text-like sections | |
1675 | (and perhaps all read-only sections) transparently, | |
1676 | i.e. don't reject memory requests from these address ranges | |
1677 | just because they haven't been collected. */ | |
1678 | ||
1679 | static void | |
1680 | remote_set_transparent_ranges (void) | |
1681 | { | |
1682 | extern bfd *exec_bfd; | |
1683 | asection *s; | |
1684 | bfd_size_type size; | |
1685 | bfd_vma lma; | |
1686 | int anysecs = 0; | |
1687 | ||
1688 | if (!exec_bfd) | |
c5aa993b | 1689 | return; /* no information to give. */ |
c906108c SS |
1690 | |
1691 | strcpy (target_buf, "QTro"); | |
1692 | for (s = exec_bfd->sections; s; s = s->next) | |
1693 | { | |
1694 | char tmp[40]; | |
1695 | ||
c5aa993b JM |
1696 | if ((s->flags & SEC_LOAD) == 0 || |
1697 | /* (s->flags & SEC_CODE) == 0 || */ | |
c906108c SS |
1698 | (s->flags & SEC_READONLY) == 0) |
1699 | continue; | |
1700 | ||
1701 | anysecs = 1; | |
c5aa993b | 1702 | lma = s->lma; |
c906108c SS |
1703 | size = bfd_get_section_size_before_reloc (s); |
1704 | sprintf (tmp, ":%x,%x", lma, lma + size); | |
1705 | strcat (target_buf, tmp); | |
1706 | } | |
1707 | if (anysecs) | |
1708 | { | |
1709 | putpkt (target_buf); | |
1710 | getpkt (target_buf, 0); | |
1711 | } | |
1712 | } | |
1713 | ||
1714 | /* tstart command: | |
c5aa993b | 1715 | |
c906108c SS |
1716 | Tell target to clear any previous trace experiment. |
1717 | Walk the list of tracepoints, and send them (and their actions) | |
1718 | to the target. If no errors, | |
1719 | Tell target to start a new trace experiment. */ | |
1720 | ||
1721 | static void | |
1722 | trace_start_command (args, from_tty) | |
1723 | char *args; | |
1724 | int from_tty; | |
c5aa993b | 1725 | { /* STUB_COMM MOSTLY_IMPLEMENTED */ |
c906108c SS |
1726 | struct tracepoint *t; |
1727 | char buf[2048]; | |
1728 | char **tdp_actions; | |
1729 | char **stepping_actions; | |
1730 | int ndx; | |
1731 | struct cleanup *old_chain = NULL; | |
1732 | ||
c5aa993b JM |
1733 | dont_repeat (); /* like "run", dangerous to repeat accidentally */ |
1734 | ||
c906108c SS |
1735 | if (target_is_remote ()) |
1736 | { | |
1737 | putpkt ("QTinit"); | |
1738 | remote_get_noisy_reply (target_buf); | |
1739 | if (strcmp (target_buf, "OK")) | |
1740 | error ("Target does not support this command."); | |
1741 | ||
1742 | ALL_TRACEPOINTS (t) | |
c5aa993b JM |
1743 | { |
1744 | int ss_count; /* if actions include singlestepping */ | |
1745 | int disable_mask; /* ??? */ | |
1746 | int enable_mask; /* ??? */ | |
c906108c | 1747 | |
c5aa993b JM |
1748 | sprintf (buf, "QTDP:%x:%x:%c:%x:%x", t->number, t->address, |
1749 | t->enabled == enabled ? 'E' : 'D', | |
1750 | t->step_count, t->pass_count); | |
1751 | ||
1752 | if (t->actions) | |
1753 | strcat (buf, "-"); | |
1754 | putpkt (buf); | |
1755 | remote_get_noisy_reply (target_buf); | |
1756 | if (strcmp (target_buf, "OK")) | |
1757 | error ("Target does not support tracepoints."); | |
1758 | ||
1759 | if (t->actions) | |
1760 | { | |
1761 | encode_actions (t, &tdp_actions, &stepping_actions); | |
1762 | old_chain = make_cleanup (free_actions_list_cleanup_wrapper, | |
1763 | tdp_actions); | |
1764 | (void) make_cleanup (free_actions_list_cleanup_wrapper, | |
1765 | stepping_actions); | |
1766 | ||
1767 | /* do_single_steps (t); */ | |
1768 | if (tdp_actions) | |
1769 | { | |
1770 | for (ndx = 0; tdp_actions[ndx]; ndx++) | |
1771 | { | |
1772 | QUIT; /* allow user to bail out with ^C */ | |
1773 | sprintf (buf, "QTDP:-%x:%x:%s%c", | |
1774 | t->number, t->address, | |
1775 | tdp_actions[ndx], | |
1776 | ((tdp_actions[ndx + 1] || stepping_actions) | |
1777 | ? '-' : 0)); | |
1778 | putpkt (buf); | |
1779 | remote_get_noisy_reply (target_buf); | |
1780 | if (strcmp (target_buf, "OK")) | |
1781 | error ("Error on target while setting tracepoints."); | |
1782 | } | |
1783 | } | |
1784 | if (stepping_actions) | |
1785 | { | |
1786 | for (ndx = 0; stepping_actions[ndx]; ndx++) | |
1787 | { | |
1788 | QUIT; /* allow user to bail out with ^C */ | |
1789 | sprintf (buf, "QTDP:-%x:%x:%s%s%s", | |
1790 | t->number, t->address, | |
1791 | ((ndx == 0) ? "S" : ""), | |
1792 | stepping_actions[ndx], | |
1793 | (stepping_actions[ndx + 1] ? "-" : "")); | |
1794 | putpkt (buf); | |
1795 | remote_get_noisy_reply (target_buf); | |
1796 | if (strcmp (target_buf, "OK")) | |
1797 | error ("Error on target while setting tracepoints."); | |
1798 | } | |
1799 | } | |
1800 | ||
1801 | do_cleanups (old_chain); | |
1802 | } | |
1803 | } | |
c906108c SS |
1804 | /* Tell target to treat text-like sections as transparent */ |
1805 | remote_set_transparent_ranges (); | |
1806 | /* Now insert traps and begin collecting data */ | |
1807 | putpkt ("QTStart"); | |
1808 | remote_get_noisy_reply (target_buf); | |
1809 | if (strcmp (target_buf, "OK")) | |
1810 | error ("Bogus reply from target: %s", target_buf); | |
1811 | set_traceframe_num (-1); /* all old traceframes invalidated */ | |
1812 | set_tracepoint_num (-1); | |
c5aa993b | 1813 | set_traceframe_context (-1); |
c906108c SS |
1814 | trace_running_p = 1; |
1815 | if (trace_start_stop_hook) | |
c5aa993b JM |
1816 | trace_start_stop_hook (1, from_tty); |
1817 | ||
c906108c SS |
1818 | } |
1819 | else | |
1820 | error ("Trace can only be run on remote targets."); | |
1821 | } | |
1822 | ||
1823 | /* tstop command */ | |
1824 | static void | |
1825 | trace_stop_command (args, from_tty) | |
1826 | char *args; | |
1827 | int from_tty; | |
c5aa993b | 1828 | { /* STUB_COMM IS_IMPLEMENTED */ |
c906108c SS |
1829 | if (target_is_remote ()) |
1830 | { | |
1831 | putpkt ("QTStop"); | |
1832 | remote_get_noisy_reply (target_buf); | |
1833 | if (strcmp (target_buf, "OK")) | |
1834 | error ("Bogus reply from target: %s", target_buf); | |
1835 | trace_running_p = 0; | |
1836 | if (trace_start_stop_hook) | |
c5aa993b | 1837 | trace_start_stop_hook (0, from_tty); |
c906108c SS |
1838 | } |
1839 | else | |
1840 | error ("Trace can only be run on remote targets."); | |
1841 | } | |
1842 | ||
1843 | unsigned long trace_running_p; | |
1844 | ||
1845 | /* tstatus command */ | |
1846 | static void | |
1847 | trace_status_command (args, from_tty) | |
1848 | char *args; | |
1849 | int from_tty; | |
c5aa993b | 1850 | { /* STUB_COMM IS_IMPLEMENTED */ |
c906108c SS |
1851 | if (target_is_remote ()) |
1852 | { | |
1853 | putpkt ("qTStatus"); | |
1854 | remote_get_noisy_reply (target_buf); | |
1855 | ||
1856 | if (target_buf[0] != 'T' || | |
1857 | (target_buf[1] != '0' && target_buf[1] != '1')) | |
1858 | error ("Bogus reply from target: %s", target_buf); | |
1859 | ||
1860 | /* exported for use by the GUI */ | |
1861 | trace_running_p = (target_buf[1] == '1'); | |
1862 | } | |
1863 | else | |
1864 | error ("Trace can only be run on remote targets."); | |
1865 | } | |
1866 | ||
1867 | /* Worker function for the various flavors of the tfind command */ | |
1868 | static void | |
1869 | finish_tfind_command (msg, from_tty) | |
1870 | char *msg; | |
1871 | int from_tty; | |
1872 | { | |
1873 | int target_frameno = -1, target_tracept = -1; | |
1874 | CORE_ADDR old_frame_addr; | |
1875 | struct symbol *old_func; | |
1876 | char *reply; | |
1877 | ||
1878 | old_frame_addr = FRAME_FP (get_current_frame ()); | |
c5aa993b | 1879 | old_func = find_pc_function (read_pc ()); |
c906108c SS |
1880 | |
1881 | putpkt (msg); | |
1882 | reply = remote_get_noisy_reply (msg); | |
1883 | ||
1884 | while (reply && *reply) | |
c5aa993b JM |
1885 | switch (*reply) |
1886 | { | |
1887 | case 'F': | |
1888 | if ((target_frameno = (int) strtol (++reply, &reply, 16)) == -1) | |
1889 | { | |
1890 | /* A request for a non-existant trace frame has failed. | |
1891 | Our response will be different, depending on FROM_TTY: | |
1892 | ||
1893 | If FROM_TTY is true, meaning that this command was | |
1894 | typed interactively by the user, then give an error | |
1895 | and DO NOT change the state of traceframe_number etc. | |
1896 | ||
1897 | However if FROM_TTY is false, meaning that we're either | |
1898 | in a script, a loop, or a user-defined command, then | |
1899 | DON'T give an error, but DO change the state of | |
1900 | traceframe_number etc. to invalid. | |
1901 | ||
1902 | The rationalle is that if you typed the command, you | |
1903 | might just have committed a typo or something, and you'd | |
1904 | like to NOT lose your current debugging state. However | |
1905 | if you're in a user-defined command or especially in a | |
1906 | loop, then you need a way to detect that the command | |
1907 | failed WITHOUT aborting. This allows you to write | |
1908 | scripts that search thru the trace buffer until the end, | |
1909 | and then continue on to do something else. */ | |
1910 | ||
1911 | if (from_tty) | |
1912 | error ("Target failed to find requested trace frame."); | |
1913 | else | |
1914 | { | |
1915 | if (info_verbose) | |
1916 | printf_filtered ("End of trace buffer.\n"); | |
1917 | /* The following will not recurse, since it's special-cased */ | |
1918 | trace_find_command ("-1", from_tty); | |
1919 | reply = NULL; /* break out of loop, | |
c906108c | 1920 | (avoid recursive nonsense) */ |
c5aa993b JM |
1921 | } |
1922 | } | |
1923 | break; | |
1924 | case 'T': | |
1925 | if ((target_tracept = (int) strtol (++reply, &reply, 16)) == -1) | |
1926 | error ("Target failed to find requested trace frame."); | |
1927 | break; | |
1928 | case 'O': /* "OK"? */ | |
1929 | if (reply[1] == 'K' && reply[2] == '\0') | |
1930 | reply += 2; | |
1931 | else | |
1932 | error ("Bogus reply from target: %s", reply); | |
1933 | break; | |
1934 | default: | |
c906108c | 1935 | error ("Bogus reply from target: %s", reply); |
c5aa993b | 1936 | } |
c906108c SS |
1937 | |
1938 | flush_cached_frames (); | |
1939 | registers_changed (); | |
1940 | select_frame (get_current_frame (), 0); | |
1941 | set_traceframe_num (target_frameno); | |
1942 | set_tracepoint_num (target_tracept); | |
1943 | if (target_frameno == -1) | |
1944 | set_traceframe_context (-1); | |
1945 | else | |
1946 | set_traceframe_context (read_pc ()); | |
1947 | ||
1948 | if (from_tty) | |
1949 | { | |
1950 | int source_only; | |
1951 | ||
1952 | /* NOTE: in immitation of the step command, try to determine | |
c5aa993b JM |
1953 | whether we have made a transition from one function to another. |
1954 | If so, we'll print the "stack frame" (ie. the new function and | |
1955 | it's arguments) -- otherwise we'll just show the new source line. | |
1956 | ||
1957 | This determination is made by checking (1) whether the current | |
1958 | function has changed, and (2) whether the current FP has changed. | |
1959 | Hack: if the FP wasn't collected, either at the current or the | |
1960 | previous frame, assume that the FP has NOT changed. */ | |
1961 | ||
1962 | if (old_func == find_pc_function (read_pc ()) && | |
1963 | (old_frame_addr == 0 || | |
1964 | FRAME_FP (get_current_frame ()) == 0 || | |
1965 | old_frame_addr == FRAME_FP (get_current_frame ()))) | |
c906108c SS |
1966 | source_only = -1; |
1967 | else | |
c5aa993b | 1968 | source_only = 1; |
c906108c SS |
1969 | |
1970 | print_stack_frame (selected_frame, selected_frame_level, source_only); | |
1971 | do_displays (); | |
1972 | } | |
1973 | } | |
1974 | ||
1975 | /* trace_find_command takes a trace frame number n, | |
1976 | sends "QTFrame:<n>" to the target, | |
1977 | and accepts a reply that may contain several optional pieces | |
1978 | of information: a frame number, a tracepoint number, and an | |
1979 | indication of whether this is a trap frame or a stepping frame. | |
1980 | ||
1981 | The minimal response is just "OK" (which indicates that the | |
1982 | target does not give us a frame number or a tracepoint number). | |
1983 | Instead of that, the target may send us a string containing | |
1984 | any combination of: | |
c5aa993b JM |
1985 | F<hexnum> (gives the selected frame number) |
1986 | T<hexnum> (gives the selected tracepoint number) | |
1987 | */ | |
c906108c SS |
1988 | |
1989 | /* tfind command */ | |
1990 | static void | |
1991 | trace_find_command (args, from_tty) | |
1992 | char *args; | |
1993 | int from_tty; | |
c5aa993b | 1994 | { /* STUB_COMM PART_IMPLEMENTED */ |
c906108c SS |
1995 | /* this should only be called with a numeric argument */ |
1996 | int frameno = -1; | |
1997 | char *tmp; | |
1998 | ||
1999 | if (target_is_remote ()) | |
2000 | { | |
2001 | if (trace_find_hook) | |
c5aa993b JM |
2002 | trace_find_hook (args, from_tty); |
2003 | ||
c906108c | 2004 | if (args == 0 || *args == 0) |
c5aa993b | 2005 | { /* TFIND with no args means find NEXT trace frame. */ |
c906108c SS |
2006 | if (traceframe_number == -1) |
2007 | frameno = 0; /* "next" is first one */ | |
2008 | else | |
2009 | frameno = traceframe_number + 1; | |
2010 | } | |
2011 | else if (0 == strcmp (args, "-")) | |
2012 | { | |
2013 | if (traceframe_number == -1) | |
2014 | error ("not debugging trace buffer"); | |
2015 | else if (from_tty && traceframe_number == 0) | |
2016 | error ("already at start of trace buffer"); | |
2017 | ||
2018 | frameno = traceframe_number - 1; | |
2019 | } | |
2020 | else | |
2021 | frameno = parse_and_eval_address (args); | |
2022 | ||
2023 | if (frameno < -1) | |
2024 | error ("invalid input (%d is less than zero)", frameno); | |
2025 | ||
2026 | sprintf (target_buf, "QTFrame:%x", frameno); | |
2027 | finish_tfind_command (target_buf, from_tty); | |
2028 | } | |
2029 | else | |
2030 | error ("Trace can only be run on remote targets."); | |
2031 | } | |
2032 | ||
2033 | /* tfind end */ | |
2034 | static void | |
2035 | trace_find_end_command (args, from_tty) | |
2036 | char *args; | |
2037 | int from_tty; | |
2038 | { | |
2039 | trace_find_command ("-1", from_tty); | |
2040 | } | |
2041 | ||
2042 | /* tfind none */ | |
2043 | static void | |
2044 | trace_find_none_command (args, from_tty) | |
2045 | char *args; | |
2046 | int from_tty; | |
2047 | { | |
2048 | trace_find_command ("-1", from_tty); | |
2049 | } | |
2050 | ||
2051 | /* tfind start */ | |
2052 | static void | |
2053 | trace_find_start_command (args, from_tty) | |
2054 | char *args; | |
2055 | int from_tty; | |
2056 | { | |
2057 | trace_find_command ("0", from_tty); | |
2058 | } | |
2059 | ||
2060 | /* tfind pc command */ | |
2061 | static void | |
2062 | trace_find_pc_command (args, from_tty) | |
2063 | char *args; | |
2064 | int from_tty; | |
c5aa993b | 2065 | { /* STUB_COMM PART_IMPLEMENTED */ |
c906108c SS |
2066 | CORE_ADDR pc; |
2067 | char *tmp; | |
2068 | ||
2069 | if (target_is_remote ()) | |
2070 | { | |
2071 | if (args == 0 || *args == 0) | |
2072 | pc = read_pc (); /* default is current pc */ | |
2073 | else | |
2074 | pc = parse_and_eval_address (args); | |
2075 | ||
2076 | sprintf (target_buf, "QTFrame:pc:%x", pc); | |
2077 | finish_tfind_command (target_buf, from_tty); | |
2078 | } | |
2079 | else | |
2080 | error ("Trace can only be run on remote targets."); | |
2081 | } | |
2082 | ||
2083 | /* tfind tracepoint command */ | |
2084 | static void | |
2085 | trace_find_tracepoint_command (args, from_tty) | |
2086 | char *args; | |
2087 | int from_tty; | |
c5aa993b | 2088 | { /* STUB_COMM PART_IMPLEMENTED */ |
c906108c SS |
2089 | int tdp; |
2090 | char buf[40], *tmp; | |
2091 | ||
2092 | if (target_is_remote ()) | |
2093 | { | |
2094 | if (args == 0 || *args == 0) | |
2095 | if (tracepoint_number == -1) | |
2096 | error ("No current tracepoint -- please supply an argument."); | |
2097 | else | |
2098 | tdp = tracepoint_number; /* default is current TDP */ | |
2099 | else | |
2100 | tdp = parse_and_eval_address (args); | |
2101 | ||
2102 | sprintf (target_buf, "QTFrame:tdp:%x", tdp); | |
2103 | finish_tfind_command (target_buf, from_tty); | |
2104 | } | |
2105 | else | |
2106 | error ("Trace can only be run on remote targets."); | |
2107 | } | |
2108 | ||
2109 | /* TFIND LINE command: | |
c5aa993b | 2110 | |
c906108c SS |
2111 | This command will take a sourceline for argument, just like BREAK |
2112 | or TRACE (ie. anything that "decode_line_1" can handle). | |
c5aa993b | 2113 | |
c906108c SS |
2114 | With no argument, this command will find the next trace frame |
2115 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
2116 | ||
2117 | static void | |
2118 | trace_find_line_command (args, from_tty) | |
2119 | char *args; | |
2120 | int from_tty; | |
c5aa993b | 2121 | { /* STUB_COMM PART_IMPLEMENTED */ |
c906108c SS |
2122 | static CORE_ADDR start_pc, end_pc; |
2123 | struct symtabs_and_lines sals; | |
2124 | struct symtab_and_line sal; | |
2125 | char *tmp; | |
2126 | struct cleanup *old_chain; | |
2127 | ||
2128 | if (target_is_remote ()) | |
2129 | { | |
2130 | if (args == 0 || *args == 0) | |
2131 | { | |
2132 | sal = find_pc_line ((get_current_frame ())->pc, 0); | |
2133 | sals.nelts = 1; | |
2134 | sals.sals = (struct symtab_and_line *) | |
2135 | xmalloc (sizeof (struct symtab_and_line)); | |
2136 | sals.sals[0] = sal; | |
2137 | } | |
2138 | else | |
2139 | { | |
2140 | sals = decode_line_spec (args, 1); | |
c5aa993b | 2141 | sal = sals.sals[0]; |
c906108c SS |
2142 | } |
2143 | ||
2144 | old_chain = make_cleanup (free, sals.sals); | |
2145 | if (sal.symtab == 0) | |
2146 | { | |
2147 | printf_filtered ("TFIND: No line number information available"); | |
2148 | if (sal.pc != 0) | |
2149 | { | |
2150 | /* This is useful for "info line *0x7f34". If we can't tell the | |
c5aa993b JM |
2151 | user about a source line, at least let them have the symbolic |
2152 | address. */ | |
c906108c SS |
2153 | printf_filtered (" for address "); |
2154 | wrap_here (" "); | |
2155 | print_address (sal.pc, gdb_stdout); | |
2156 | printf_filtered (";\n -- will attempt to find by PC. \n"); | |
2157 | } | |
2158 | else | |
2159 | { | |
2160 | printf_filtered (".\n"); | |
c5aa993b | 2161 | return; /* no line, no PC; what can we do? */ |
c906108c SS |
2162 | } |
2163 | } | |
2164 | else if (sal.line > 0 | |
2165 | && find_line_pc_range (sal, &start_pc, &end_pc)) | |
2166 | { | |
2167 | if (start_pc == end_pc) | |
2168 | { | |
2169 | printf_filtered ("Line %d of \"%s\"", | |
2170 | sal.line, sal.symtab->filename); | |
2171 | wrap_here (" "); | |
2172 | printf_filtered (" is at address "); | |
2173 | print_address (start_pc, gdb_stdout); | |
2174 | wrap_here (" "); | |
2175 | printf_filtered (" but contains no code.\n"); | |
2176 | sal = find_pc_line (start_pc, 0); | |
2177 | if (sal.line > 0 && | |
2178 | find_line_pc_range (sal, &start_pc, &end_pc) && | |
2179 | start_pc != end_pc) | |
2180 | printf_filtered ("Attempting to find line %d instead.\n", | |
2181 | sal.line); | |
2182 | else | |
2183 | error ("Cannot find a good line."); | |
2184 | } | |
2185 | } | |
2186 | else | |
2187 | /* Is there any case in which we get here, and have an address | |
2188 | which the user would want to see? If we have debugging symbols | |
2189 | and no line numbers? */ | |
2190 | error ("Line number %d is out of range for \"%s\".\n", | |
2191 | sal.line, sal.symtab->filename); | |
2192 | ||
2193 | if (args && *args) /* find within range of stated line */ | |
2194 | sprintf (target_buf, "QTFrame:range:%x:%x", start_pc, end_pc - 1); | |
2195 | else /* find OUTSIDE OF range of CURRENT line */ | |
2196 | sprintf (target_buf, "QTFrame:outside:%x:%x", start_pc, end_pc - 1); | |
2197 | finish_tfind_command (target_buf, from_tty); | |
2198 | do_cleanups (old_chain); | |
2199 | } | |
2200 | else | |
c5aa993b | 2201 | error ("Trace can only be run on remote targets."); |
c906108c SS |
2202 | } |
2203 | ||
2204 | /* tfind range command */ | |
2205 | static void | |
2206 | trace_find_range_command (args, from_tty) | |
2207 | char *args; | |
2208 | int from_tty; | |
c5aa993b | 2209 | { /* STUB_COMM PART_IMPLEMENTED */ |
c906108c SS |
2210 | static CORE_ADDR start, stop; |
2211 | char *tmp; | |
2212 | ||
2213 | if (target_is_remote ()) | |
2214 | { | |
2215 | if (args == 0 || *args == 0) | |
c5aa993b | 2216 | { /* XXX FIXME: what should default behavior be? */ |
c906108c SS |
2217 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); |
2218 | return; | |
2219 | } | |
2220 | ||
c5aa993b | 2221 | if (0 != (tmp = strchr (args, ','))) |
c906108c SS |
2222 | { |
2223 | *tmp++ = '\0'; /* terminate start address */ | |
2224 | while (isspace (*tmp)) | |
2225 | tmp++; | |
2226 | start = parse_and_eval_address (args); | |
c5aa993b | 2227 | stop = parse_and_eval_address (tmp); |
c906108c SS |
2228 | } |
2229 | else | |
c5aa993b | 2230 | { /* no explicit end address? */ |
c906108c | 2231 | start = parse_and_eval_address (args); |
c5aa993b | 2232 | stop = start + 1; /* ??? */ |
c906108c SS |
2233 | } |
2234 | ||
2235 | sprintf (target_buf, "QTFrame:range:%x:%x", start, stop); | |
2236 | finish_tfind_command (target_buf, from_tty); | |
2237 | } | |
2238 | else | |
c5aa993b | 2239 | error ("Trace can only be run on remote targets."); |
c906108c SS |
2240 | } |
2241 | ||
2242 | /* tfind outside command */ | |
2243 | static void | |
2244 | trace_find_outside_command (args, from_tty) | |
2245 | char *args; | |
2246 | int from_tty; | |
c5aa993b | 2247 | { /* STUB_COMM PART_IMPLEMENTED */ |
c906108c SS |
2248 | CORE_ADDR start, stop; |
2249 | char *tmp; | |
2250 | ||
2251 | if (target_is_remote ()) | |
2252 | { | |
2253 | if (args == 0 || *args == 0) | |
c5aa993b | 2254 | { /* XXX FIXME: what should default behavior be? */ |
c906108c SS |
2255 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); |
2256 | return; | |
2257 | } | |
2258 | ||
c5aa993b | 2259 | if (0 != (tmp = strchr (args, ','))) |
c906108c SS |
2260 | { |
2261 | *tmp++ = '\0'; /* terminate start address */ | |
2262 | while (isspace (*tmp)) | |
2263 | tmp++; | |
2264 | start = parse_and_eval_address (args); | |
c5aa993b | 2265 | stop = parse_and_eval_address (tmp); |
c906108c SS |
2266 | } |
2267 | else | |
c5aa993b | 2268 | { /* no explicit end address? */ |
c906108c | 2269 | start = parse_and_eval_address (args); |
c5aa993b | 2270 | stop = start + 1; /* ??? */ |
c906108c SS |
2271 | } |
2272 | ||
2273 | sprintf (target_buf, "QTFrame:outside:%x:%x", start, stop); | |
2274 | finish_tfind_command (target_buf, from_tty); | |
2275 | } | |
2276 | else | |
c5aa993b | 2277 | error ("Trace can only be run on remote targets."); |
c906108c SS |
2278 | } |
2279 | ||
2280 | /* save-tracepoints command */ | |
2281 | static void | |
2282 | tracepoint_save_command (args, from_tty) | |
2283 | char *args; | |
2284 | int from_tty; | |
2285 | { | |
c5aa993b | 2286 | struct tracepoint *tp; |
c906108c SS |
2287 | struct action_line *line; |
2288 | FILE *fp; | |
2289 | char *i1 = " ", *i2 = " "; | |
2290 | char *indent, *actionline; | |
2291 | ||
2292 | if (args == 0 || *args == 0) | |
2293 | error ("Argument required (file name in which to save tracepoints"); | |
2294 | ||
2295 | if (tracepoint_chain == 0) | |
2296 | { | |
2297 | warning ("save-tracepoints: no tracepoints to save.\n"); | |
2298 | return; | |
2299 | } | |
2300 | ||
2301 | if (!(fp = fopen (args, "w"))) | |
2302 | error ("Unable to open file '%s' for saving tracepoints"); | |
2303 | ||
2304 | ALL_TRACEPOINTS (tp) | |
c5aa993b JM |
2305 | { |
2306 | if (tp->addr_string) | |
2307 | fprintf (fp, "trace %s\n", tp->addr_string); | |
2308 | else | |
2309 | fprintf (fp, "trace *0x%x\n", tp->address); | |
c906108c | 2310 | |
c5aa993b JM |
2311 | if (tp->pass_count) |
2312 | fprintf (fp, " passcount %d\n", tp->pass_count); | |
c906108c | 2313 | |
c5aa993b JM |
2314 | if (tp->actions) |
2315 | { | |
2316 | fprintf (fp, " actions\n"); | |
2317 | indent = i1; | |
2318 | for (line = tp->actions; line; line = line->next) | |
2319 | { | |
2320 | struct cmd_list_element *cmd; | |
c906108c | 2321 | |
c5aa993b JM |
2322 | QUIT; /* allow user to bail out with ^C */ |
2323 | actionline = line->action; | |
2324 | while (isspace (*actionline)) | |
2325 | actionline++; | |
c906108c | 2326 | |
c5aa993b JM |
2327 | fprintf (fp, "%s%s\n", indent, actionline); |
2328 | if (*actionline != '#') /* skip for comment lines */ | |
2329 | { | |
2330 | cmd = lookup_cmd (&actionline, cmdlist, "", -1, 1); | |
2331 | if (cmd == 0) | |
2332 | error ("Bad action list item: %s", actionline); | |
2333 | if (cmd->function.cfunc == while_stepping_pseudocommand) | |
2334 | indent = i2; | |
2335 | else if (cmd->function.cfunc == end_actions_pseudocommand) | |
2336 | indent = i1; | |
2337 | } | |
2338 | } | |
2339 | } | |
2340 | } | |
c906108c SS |
2341 | fclose (fp); |
2342 | if (from_tty) | |
2343 | printf_filtered ("Tracepoints saved to file '%s'.\n", args); | |
2344 | return; | |
2345 | } | |
2346 | ||
2347 | /* info scope command: list the locals for a scope. */ | |
2348 | static void | |
2349 | scope_info (args, from_tty) | |
2350 | char *args; | |
2351 | int from_tty; | |
2352 | { | |
2353 | struct symtab_and_line sal; | |
2354 | struct symtabs_and_lines sals; | |
2355 | struct symbol *sym; | |
2356 | struct minimal_symbol *msym; | |
2357 | struct block *block; | |
2358 | char **canonical, *symname, *save_args = args; | |
2359 | int i, j, nsyms, count = 0; | |
2360 | ||
2361 | if (args == 0 || *args == 0) | |
2362 | error ("requires an argument (function, line or *addr) to define a scope"); | |
2363 | ||
2364 | sals = decode_line_1 (&args, 1, NULL, 0, &canonical); | |
2365 | if (sals.nelts == 0) | |
c5aa993b | 2366 | return; /* presumably decode_line_1 has already warned */ |
c906108c SS |
2367 | |
2368 | /* Resolve line numbers to PC */ | |
2369 | resolve_sal_pc (&sals.sals[0]); | |
2370 | block = block_for_pc (sals.sals[0].pc); | |
2371 | ||
2372 | while (block != 0) | |
2373 | { | |
c5aa993b | 2374 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
2375 | nsyms = BLOCK_NSYMS (block); |
2376 | for (i = 0; i < nsyms; i++) | |
2377 | { | |
c5aa993b | 2378 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
2379 | if (count == 0) |
2380 | printf_filtered ("Scope for %s:\n", save_args); | |
2381 | count++; | |
2382 | sym = BLOCK_SYM (block, i); | |
2383 | symname = SYMBOL_NAME (sym); | |
2384 | if (symname == NULL || *symname == '\0') | |
c5aa993b | 2385 | continue; /* probably botched, certainly useless */ |
c906108c SS |
2386 | |
2387 | printf_filtered ("Symbol %s is ", symname); | |
c5aa993b JM |
2388 | switch (SYMBOL_CLASS (sym)) |
2389 | { | |
2390 | default: | |
2391 | case LOC_UNDEF: /* messed up symbol? */ | |
2392 | printf_filtered ("a bogus symbol, class %d.\n", | |
2393 | SYMBOL_CLASS (sym)); | |
2394 | count--; /* don't count this one */ | |
2395 | continue; | |
2396 | case LOC_CONST: | |
2397 | printf_filtered ("a constant with value %d (0x%x)", | |
2398 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); | |
2399 | break; | |
2400 | case LOC_CONST_BYTES: | |
2401 | printf_filtered ("constant bytes: "); | |
2402 | if (SYMBOL_TYPE (sym)) | |
2403 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) | |
2404 | fprintf_filtered (gdb_stdout, " %02x", | |
2405 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); | |
2406 | break; | |
2407 | case LOC_STATIC: | |
2408 | printf_filtered ("in static storage at address "); | |
2409 | print_address_numeric (SYMBOL_VALUE_ADDRESS (sym), 1, gdb_stdout); | |
2410 | break; | |
2411 | case LOC_REGISTER: | |
2412 | printf_filtered ("a local variable in register $%s", | |
2413 | REGISTER_NAME (SYMBOL_VALUE (sym))); | |
2414 | break; | |
2415 | case LOC_ARG: | |
2416 | case LOC_LOCAL_ARG: | |
2417 | printf_filtered ("an argument at stack/frame offset %ld", | |
2418 | SYMBOL_VALUE (sym)); | |
2419 | break; | |
2420 | case LOC_LOCAL: | |
2421 | printf_filtered ("a local variable at frame offset %ld", | |
2422 | SYMBOL_VALUE (sym)); | |
2423 | break; | |
2424 | case LOC_REF_ARG: | |
2425 | printf_filtered ("a reference argument at offset %ld", | |
2426 | SYMBOL_VALUE (sym)); | |
2427 | break; | |
2428 | case LOC_REGPARM: | |
2429 | printf_filtered ("an argument in register $%s", | |
2430 | REGISTER_NAME (SYMBOL_VALUE (sym))); | |
2431 | break; | |
2432 | case LOC_REGPARM_ADDR: | |
2433 | printf_filtered ("the address of an argument, in register $%s", | |
2434 | REGISTER_NAME (SYMBOL_VALUE (sym))); | |
2435 | break; | |
2436 | case LOC_TYPEDEF: | |
2437 | printf_filtered ("a typedef.\n"); | |
2438 | continue; | |
2439 | case LOC_LABEL: | |
2440 | printf_filtered ("a label at address "); | |
2441 | print_address_numeric (SYMBOL_VALUE_ADDRESS (sym), 1, gdb_stdout); | |
2442 | break; | |
2443 | case LOC_BLOCK: | |
2444 | printf_filtered ("a function at address "); | |
2445 | print_address_numeric (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), 1, | |
2446 | gdb_stdout); | |
2447 | break; | |
2448 | case LOC_BASEREG: | |
2449 | printf_filtered ("a variable at offset %d from register $%s", | |
2450 | SYMBOL_VALUE (sym), | |
2451 | REGISTER_NAME (SYMBOL_BASEREG (sym))); | |
2452 | break; | |
2453 | case LOC_BASEREG_ARG: | |
2454 | printf_filtered ("an argument at offset %d from register $%s", | |
2455 | SYMBOL_VALUE (sym), | |
2456 | REGISTER_NAME (SYMBOL_BASEREG (sym))); | |
2457 | break; | |
2458 | case LOC_UNRESOLVED: | |
2459 | msym = lookup_minimal_symbol (SYMBOL_NAME (sym), NULL, NULL); | |
2460 | if (msym == NULL) | |
2461 | printf_filtered ("Unresolved Static"); | |
2462 | else | |
2463 | { | |
2464 | printf_filtered ("static storage at address "); | |
2465 | print_address_numeric (SYMBOL_VALUE_ADDRESS (msym), 1, | |
2466 | gdb_stdout); | |
2467 | } | |
2468 | break; | |
2469 | case LOC_OPTIMIZED_OUT: | |
2470 | printf_filtered ("optimized out.\n"); | |
2471 | continue; | |
2472 | } | |
c906108c | 2473 | if (SYMBOL_TYPE (sym)) |
c5aa993b JM |
2474 | printf_filtered (", length %d.\n", |
2475 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); | |
c906108c SS |
2476 | } |
2477 | if (BLOCK_FUNCTION (block)) | |
2478 | break; | |
2479 | else | |
2480 | block = BLOCK_SUPERBLOCK (block); | |
2481 | } | |
2482 | if (count <= 0) | |
2483 | printf_filtered ("Scope for %s contains no locals or arguments.\n", | |
2484 | save_args); | |
2485 | } | |
2486 | ||
2487 | /* worker function (cleanup) */ | |
2488 | static void | |
2489 | replace_comma (comma) | |
2490 | char *comma; | |
2491 | { | |
2492 | *comma = ','; | |
2493 | } | |
2494 | ||
2495 | /* tdump command */ | |
2496 | static void | |
2497 | trace_dump_command (args, from_tty) | |
2498 | char *args; | |
2499 | int from_tty; | |
2500 | { | |
c5aa993b | 2501 | struct tracepoint *t; |
c906108c | 2502 | struct action_line *action; |
c5aa993b JM |
2503 | char *action_exp, *next_comma; |
2504 | struct cleanup *old_cleanups; | |
2505 | int stepping_actions = 0; | |
2506 | int stepping_frame = 0; | |
c906108c SS |
2507 | |
2508 | if (!target_is_remote ()) | |
2509 | { | |
2510 | error ("Trace can only be run on remote targets."); | |
2511 | return; | |
2512 | } | |
2513 | ||
2514 | if (tracepoint_number == -1) | |
2515 | { | |
2516 | warning ("No current trace frame."); | |
2517 | return; | |
2518 | } | |
2519 | ||
2520 | ALL_TRACEPOINTS (t) | |
2521 | if (t->number == tracepoint_number) | |
c5aa993b | 2522 | break; |
c906108c SS |
2523 | |
2524 | if (t == NULL) | |
c5aa993b | 2525 | error ("No known tracepoint matches 'current' tracepoint #%d.", |
c906108c SS |
2526 | tracepoint_number); |
2527 | ||
2528 | old_cleanups = make_cleanup (null_cleanup, NULL); | |
2529 | ||
c5aa993b | 2530 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", |
c906108c SS |
2531 | tracepoint_number, traceframe_number); |
2532 | ||
2533 | /* The current frame is a trap frame if the frame PC is equal | |
2534 | to the tracepoint PC. If not, then the current frame was | |
2535 | collected during single-stepping. */ | |
2536 | ||
c5aa993b | 2537 | stepping_frame = (t->address != read_pc ()); |
c906108c SS |
2538 | |
2539 | for (action = t->actions; action; action = action->next) | |
2540 | { | |
2541 | struct cmd_list_element *cmd; | |
2542 | ||
c5aa993b | 2543 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
2544 | action_exp = action->action; |
2545 | while (isspace (*action_exp)) | |
2546 | action_exp++; | |
2547 | ||
2548 | /* The collection actions to be done while stepping are | |
c5aa993b | 2549 | bracketed by the commands "while-stepping" and "end". */ |
c906108c SS |
2550 | |
2551 | if (*action_exp == '#') /* comment line */ | |
2552 | continue; | |
2553 | ||
2554 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
2555 | if (cmd == 0) | |
2556 | error ("Bad action list item: %s", action_exp); | |
2557 | ||
2558 | if (cmd->function.cfunc == while_stepping_pseudocommand) | |
2559 | stepping_actions = 1; | |
2560 | else if (cmd->function.cfunc == end_actions_pseudocommand) | |
2561 | stepping_actions = 0; | |
2562 | else if (cmd->function.cfunc == collect_pseudocommand) | |
2563 | { | |
2564 | /* Display the collected data. | |
2565 | For the trap frame, display only what was collected at the trap. | |
2566 | Likewise for stepping frames, display only what was collected | |
2567 | while stepping. This means that the two boolean variables, | |
2568 | STEPPING_FRAME and STEPPING_ACTIONS should be equal. */ | |
2569 | if (stepping_frame == stepping_actions) | |
2570 | { | |
c5aa993b JM |
2571 | do |
2572 | { /* repeat over a comma-separated list */ | |
2573 | QUIT; /* allow user to bail out with ^C */ | |
2574 | if (*action_exp == ',') | |
2575 | action_exp++; | |
2576 | while (isspace (*action_exp)) | |
2577 | action_exp++; | |
2578 | ||
2579 | next_comma = strchr (action_exp, ','); | |
2580 | ||
2581 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2582 | registers_info (NULL, from_tty); | |
2583 | else if (0 == strncasecmp (action_exp, "$loc", 4)) | |
2584 | locals_info (NULL, from_tty); | |
2585 | else if (0 == strncasecmp (action_exp, "$arg", 4)) | |
2586 | args_info (NULL, from_tty); | |
2587 | else | |
2588 | { /* variable */ | |
2589 | if (next_comma) | |
2590 | { | |
2591 | make_cleanup (replace_comma, next_comma); | |
2592 | *next_comma = '\0'; | |
2593 | } | |
2594 | printf_filtered ("%s = ", action_exp); | |
2595 | output_command (action_exp, from_tty); | |
2596 | printf_filtered ("\n"); | |
2597 | } | |
2598 | if (next_comma) | |
2599 | *next_comma = ','; | |
2600 | action_exp = next_comma; | |
2601 | } | |
2602 | while (action_exp && *action_exp == ','); | |
c906108c SS |
2603 | } |
2604 | } | |
2605 | } | |
2606 | discard_cleanups (old_cleanups); | |
2607 | } | |
2608 | ||
2609 | /* Convert the memory pointed to by mem into hex, placing result in buf. | |
2610 | * Return a pointer to the last char put in buf (null) | |
2611 | * "stolen" from sparc-stub.c | |
2612 | */ | |
2613 | ||
c5aa993b | 2614 | static const char hexchars[] = "0123456789abcdef"; |
c906108c SS |
2615 | |
2616 | static unsigned char * | |
c5aa993b | 2617 | mem2hex (mem, buf, count) |
c906108c SS |
2618 | unsigned char *mem; |
2619 | unsigned char *buf; | |
2620 | int count; | |
2621 | { | |
2622 | unsigned char ch; | |
2623 | ||
2624 | while (count-- > 0) | |
2625 | { | |
2626 | ch = *mem++; | |
2627 | ||
2628 | *buf++ = hexchars[ch >> 4]; | |
2629 | *buf++ = hexchars[ch & 0xf]; | |
2630 | } | |
2631 | ||
2632 | *buf = 0; | |
2633 | ||
2634 | return buf; | |
2635 | } | |
2636 | ||
c5aa993b JM |
2637 | int |
2638 | get_traceframe_number () | |
c906108c | 2639 | { |
c5aa993b | 2640 | return traceframe_number; |
c906108c SS |
2641 | } |
2642 | ||
2643 | ||
2644 | /* module initialization */ | |
2645 | void | |
2646 | _initialize_tracepoint () | |
2647 | { | |
c5aa993b JM |
2648 | tracepoint_chain = 0; |
2649 | tracepoint_count = 0; | |
c906108c SS |
2650 | traceframe_number = -1; |
2651 | tracepoint_number = -1; | |
2652 | ||
c5aa993b | 2653 | set_internalvar (lookup_internalvar ("tpnum"), |
c906108c | 2654 | value_from_longest (builtin_type_int, (LONGEST) 0)); |
c5aa993b JM |
2655 | set_internalvar (lookup_internalvar ("trace_frame"), |
2656 | value_from_longest (builtin_type_int, (LONGEST) - 1)); | |
c906108c SS |
2657 | |
2658 | if (tracepoint_list.list == NULL) | |
2659 | { | |
2660 | tracepoint_list.listsize = 128; | |
c5aa993b | 2661 | tracepoint_list.list = xmalloc |
c906108c SS |
2662 | (tracepoint_list.listsize * sizeof (struct memrange)); |
2663 | } | |
2664 | if (tracepoint_list.aexpr_list == NULL) | |
2665 | { | |
2666 | tracepoint_list.aexpr_listsize = 128; | |
2667 | tracepoint_list.aexpr_list = xmalloc | |
2668 | (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
2669 | } | |
2670 | ||
2671 | if (stepping_list.list == NULL) | |
2672 | { | |
2673 | stepping_list.listsize = 128; | |
c5aa993b | 2674 | stepping_list.list = xmalloc |
c906108c SS |
2675 | (stepping_list.listsize * sizeof (struct memrange)); |
2676 | } | |
2677 | ||
2678 | if (stepping_list.aexpr_list == NULL) | |
2679 | { | |
2680 | stepping_list.aexpr_listsize = 128; | |
2681 | stepping_list.aexpr_list = xmalloc | |
2682 | (stepping_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
2683 | } | |
2684 | ||
c5aa993b | 2685 | add_info ("scope", scope_info, |
c906108c SS |
2686 | "List the variables local to a scope"); |
2687 | ||
c5aa993b JM |
2688 | add_cmd ("tracepoints", class_trace, NO_FUNCTION, |
2689 | "Tracing of program execution without stopping the program.", | |
c906108c SS |
2690 | &cmdlist); |
2691 | ||
2692 | add_info ("tracepoints", tracepoints_info, | |
2693 | "Status of tracepoints, or tracepoint number NUMBER.\n\ | |
2694 | Convenience variable \"$tpnum\" contains the number of the\n\ | |
2695 | last tracepoint set."); | |
2696 | ||
2697 | add_info_alias ("tp", "tracepoints", 1); | |
2698 | ||
c5aa993b | 2699 | add_com ("save-tracepoints", class_trace, tracepoint_save_command, |
c906108c SS |
2700 | "Save current tracepoint definitions as a script.\n\ |
2701 | Use the 'source' command in another debug session to restore them."); | |
2702 | ||
c5aa993b | 2703 | add_com ("tdump", class_trace, trace_dump_command, |
c906108c SS |
2704 | "Print everything collected at the current tracepoint."); |
2705 | ||
c5aa993b | 2706 | add_prefix_cmd ("tfind", class_trace, trace_find_command, |
c906108c SS |
2707 | "Select a trace frame;\n\ |
2708 | No argument means forward by one frame; '-' meand backward by one frame.", | |
2709 | &tfindlist, "tfind ", 1, &cmdlist); | |
2710 | ||
2711 | add_cmd ("outside", class_trace, trace_find_outside_command, | |
2712 | "Select a trace frame whose PC is outside the given \ | |
c5aa993b | 2713 | range.\nUsage: tfind outside addr1, addr2", |
c906108c SS |
2714 | &tfindlist); |
2715 | ||
2716 | add_cmd ("range", class_trace, trace_find_range_command, | |
2717 | "Select a trace frame whose PC is in the given range.\n\ | |
c5aa993b | 2718 | Usage: tfind range addr1,addr2", |
c906108c SS |
2719 | &tfindlist); |
2720 | ||
2721 | add_cmd ("line", class_trace, trace_find_line_command, | |
2722 | "Select a trace frame by source line.\n\ | |
2723 | Argument can be a line number (with optional source file), \n\ | |
2724 | a function name, or '*' followed by an address.\n\ | |
2725 | Default argument is 'the next source line that was traced'.", | |
2726 | &tfindlist); | |
2727 | ||
2728 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, | |
2729 | "Select a trace frame by tracepoint number.\n\ | |
2730 | Default is the tracepoint for the current trace frame.", | |
2731 | &tfindlist); | |
2732 | ||
2733 | add_cmd ("pc", class_trace, trace_find_pc_command, | |
2734 | "Select a trace frame by PC.\n\ | |
2735 | Default is the current PC, or the PC of the current trace frame.", | |
2736 | &tfindlist); | |
2737 | ||
2738 | add_cmd ("end", class_trace, trace_find_end_command, | |
2739 | "Synonym for 'none'.\n\ | |
2740 | De-select any trace frame and resume 'live' debugging.", | |
2741 | &tfindlist); | |
2742 | ||
2743 | add_cmd ("none", class_trace, trace_find_none_command, | |
2744 | "De-select any trace frame and resume 'live' debugging.", | |
2745 | &tfindlist); | |
2746 | ||
2747 | add_cmd ("start", class_trace, trace_find_start_command, | |
2748 | "Select the first trace frame in the trace buffer.", | |
2749 | &tfindlist); | |
2750 | ||
c5aa993b | 2751 | add_com ("tstatus", class_trace, trace_status_command, |
c906108c SS |
2752 | "Display the status of the current trace data collection."); |
2753 | ||
c5aa993b | 2754 | add_com ("tstop", class_trace, trace_stop_command, |
c906108c SS |
2755 | "Stop trace data collection."); |
2756 | ||
2757 | add_com ("tstart", class_trace, trace_start_command, | |
2758 | "Start trace data collection."); | |
2759 | ||
c5aa993b | 2760 | add_com ("passcount", class_trace, trace_pass_command, |
c906108c SS |
2761 | "Set the passcount for a tracepoint.\n\ |
2762 | The trace will end when the tracepoint has been passed 'count' times.\n\ | |
2763 | Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\ | |
2764 | if TPNUM is omitted, passcount refers to the last tracepoint defined."); | |
2765 | ||
2766 | add_com ("end", class_trace, end_actions_pseudocommand, | |
2767 | "Ends a list of commands or actions.\n\ | |
2768 | Several GDB commands allow you to enter a list of commands or actions.\n\ | |
2769 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
2770 | such a list.\n\n\ | |
2771 | Note: the \"end\" command cannot be used at the gdb prompt."); | |
2772 | ||
2773 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, | |
2774 | "Specify single-stepping behavior at a tracepoint.\n\ | |
2775 | Argument is number of instructions to trace in single-step mode\n\ | |
2776 | following the tracepoint. This command is normally followed by\n\ | |
2777 | one or more \"collect\" commands, to specify what to collect\n\ | |
2778 | while single-stepping.\n\n\ | |
2779 | Note: this command can only be used in a tracepoint \"actions\" list."); | |
2780 | ||
c5aa993b JM |
2781 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
2782 | add_com_alias ("stepping", "while-stepping", class_alias, 0); | |
c906108c | 2783 | |
c5aa993b | 2784 | add_com ("collect", class_trace, collect_pseudocommand, |
c906108c SS |
2785 | "Specify one or more data items to be collected at a tracepoint.\n\ |
2786 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ | |
2787 | collect all data (variables, registers) referenced by that expression.\n\ | |
2788 | Also accepts the following special arguments:\n\ | |
2789 | $regs -- all registers.\n\ | |
2790 | $args -- all function arguments.\n\ | |
2791 | $locals -- all variables local to the block/function scope.\n\ | |
2792 | Note: this command can only be used in a tracepoint \"actions\" list."); | |
2793 | ||
2794 | add_com ("actions", class_trace, trace_actions_command, | |
2795 | "Specify the actions to be taken at a tracepoint.\n\ | |
2796 | Tracepoint actions may include collecting of specified data, \n\ | |
2797 | single-stepping, or enabling/disabling other tracepoints, \n\ | |
2798 | depending on target's capabilities."); | |
2799 | ||
c5aa993b | 2800 | add_cmd ("tracepoints", class_trace, delete_trace_command, |
c906108c SS |
2801 | "Delete specified tracepoints.\n\ |
2802 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
2803 | No argument means delete all tracepoints.", | |
2804 | &deletelist); | |
2805 | ||
c5aa993b | 2806 | add_cmd ("tracepoints", class_trace, disable_trace_command, |
c906108c SS |
2807 | "Disable specified tracepoints.\n\ |
2808 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
2809 | No argument means disable all tracepoints.", | |
2810 | &disablelist); | |
2811 | ||
c5aa993b | 2812 | add_cmd ("tracepoints", class_trace, enable_trace_command, |
c906108c SS |
2813 | "Enable specified tracepoints.\n\ |
2814 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
2815 | No argument means enable all tracepoints.", | |
2816 | &enablelist); | |
2817 | ||
2818 | add_com ("trace", class_trace, trace_command, | |
2819 | "Set a tracepoint at a specified line or function or address.\n\ | |
2820 | Argument may be a line number, function name, or '*' plus an address.\n\ | |
2821 | For a line number or function, trace at the start of its code.\n\ | |
2822 | If an address is specified, trace at that exact address.\n\n\ | |
2823 | Do \"help tracepoints\" for info on other tracepoint commands."); | |
2824 | ||
c5aa993b JM |
2825 | add_com_alias ("tp", "trace", class_alias, 0); |
2826 | add_com_alias ("tr", "trace", class_alias, 1); | |
2827 | add_com_alias ("tra", "trace", class_alias, 1); | |
c906108c SS |
2828 | add_com_alias ("trac", "trace", class_alias, 1); |
2829 | } |