File: | src/gnu/usr.bin/binutils/gdb/tracepoint.c |
Warning: | line 1005, column 7 Value stored to 'steparg' is never read |
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1 | /* Tracing functionality for remote targets in custom GDB protocol |
2 | |
3 | Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 |
4 | Free Software Foundation, Inc. |
5 | |
6 | This file is part of GDB. |
7 | |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by |
10 | the Free Software Foundation; either version 2 of the License, or |
11 | (at your option) any later version. |
12 | |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | GNU General Public License for more details. |
17 | |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software |
20 | Foundation, Inc., 59 Temple Place - Suite 330, |
21 | Boston, MA 02111-1307, USA. */ |
22 | |
23 | #include "defs.h" |
24 | #include "symtab.h" |
25 | #include "frame.h" |
26 | #include "gdbtypes.h" |
27 | #include "expression.h" |
28 | #include "gdbcmd.h" |
29 | #include "value.h" |
30 | #include "target.h" |
31 | #include "language.h" |
32 | #include "gdb_string.h" |
33 | #include "inferior.h" |
34 | #include "tracepoint.h" |
35 | #include "remote.h" |
36 | #include "linespec.h" |
37 | #include "regcache.h" |
38 | #include "completer.h" |
39 | #include "gdb-events.h" |
40 | #include "block.h" |
41 | #include "dictionary.h" |
42 | |
43 | #include "ax.h" |
44 | #include "ax-gdb.h" |
45 | |
46 | /* readline include files */ |
47 | #include "readline/readline.h" |
48 | #include "readline/history.h" |
49 | |
50 | /* readline defines this. */ |
51 | #undef savestring |
52 | |
53 | #ifdef HAVE_UNISTD_H1 |
54 | #include <unistd.h> |
55 | #endif |
56 | |
57 | /* maximum length of an agent aexpression. |
58 | this accounts for the fact that packets are limited to 400 bytes |
59 | (which includes everything -- including the checksum), and assumes |
60 | the worst case of maximum length for each of the pieces of a |
61 | continuation packet. |
62 | |
63 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
64 | large. (400 - 31)/2 == 184 */ |
65 | #define MAX_AGENT_EXPR_LEN184 184 |
66 | |
67 | |
68 | extern void (*deprecated_readline_begin_hook) (char *, ...); |
69 | extern char *(*deprecated_readline_hook) (char *); |
70 | extern void (*deprecated_readline_end_hook) (void); |
71 | extern void x_command (char *, int); |
72 | extern int addressprint; /* Print machine addresses? */ |
73 | |
74 | /* GDB commands implemented in other modules: |
75 | */ |
76 | |
77 | extern void output_command (char *, int); |
78 | |
79 | /* |
80 | Tracepoint.c: |
81 | |
82 | This module defines the following debugger commands: |
83 | trace : set a tracepoint on a function, line, or address. |
84 | info trace : list all debugger-defined tracepoints. |
85 | delete trace : delete one or more tracepoints. |
86 | enable trace : enable one or more tracepoints. |
87 | disable trace : disable one or more tracepoints. |
88 | actions : specify actions to be taken at a tracepoint. |
89 | passcount : specify a pass count for a tracepoint. |
90 | tstart : start a trace experiment. |
91 | tstop : stop a trace experiment. |
92 | tstatus : query the status of a trace experiment. |
93 | tfind : find a trace frame in the trace buffer. |
94 | tdump : print everything collected at the current tracepoint. |
95 | save-tracepoints : write tracepoint setup into a file. |
96 | |
97 | This module defines the following user-visible debugger variables: |
98 | $trace_frame : sequence number of trace frame currently being debugged. |
99 | $trace_line : source line of trace frame currently being debugged. |
100 | $trace_file : source file of trace frame currently being debugged. |
101 | $tracepoint : tracepoint number of trace frame currently being debugged. |
102 | */ |
103 | |
104 | |
105 | /* ======= Important global variables: ======= */ |
106 | |
107 | /* Chain of all tracepoints defined. */ |
108 | struct tracepoint *tracepoint_chain; |
109 | |
110 | /* Number of last tracepoint made. */ |
111 | static int tracepoint_count; |
112 | |
113 | /* Number of last traceframe collected. */ |
114 | static int traceframe_number; |
115 | |
116 | /* Tracepoint for last traceframe collected. */ |
117 | static int tracepoint_number; |
118 | |
119 | /* Symbol for function for last traceframe collected */ |
120 | static struct symbol *traceframe_fun; |
121 | |
122 | /* Symtab and line for last traceframe collected */ |
123 | static struct symtab_and_line traceframe_sal; |
124 | |
125 | /* Tracing command lists */ |
126 | static struct cmd_list_element *tfindlist; |
127 | |
128 | /* ======= Important command functions: ======= */ |
129 | static void trace_command (char *, int); |
130 | static void tracepoints_info (char *, int); |
131 | static void delete_trace_command (char *, int); |
132 | static void enable_trace_command (char *, int); |
133 | static void disable_trace_command (char *, int); |
134 | static void trace_pass_command (char *, int); |
135 | static void trace_actions_command (char *, int); |
136 | static void trace_start_command (char *, int); |
137 | static void trace_stop_command (char *, int); |
138 | static void trace_status_command (char *, int); |
139 | static void trace_find_command (char *, int); |
140 | static void trace_find_pc_command (char *, int); |
141 | static void trace_find_tracepoint_command (char *, int); |
142 | static void trace_find_line_command (char *, int); |
143 | static void trace_find_range_command (char *, int); |
144 | static void trace_find_outside_command (char *, int); |
145 | static void tracepoint_save_command (char *, int); |
146 | static void trace_dump_command (char *, int); |
147 | |
148 | /* support routines */ |
149 | static void trace_mention (struct tracepoint *); |
150 | |
151 | struct collection_list; |
152 | static void add_aexpr (struct collection_list *, struct agent_expr *); |
153 | static unsigned char *mem2hex (unsigned char *, unsigned char *, int); |
154 | static void add_register (struct collection_list *collection, |
155 | unsigned int regno); |
156 | static struct cleanup *make_cleanup_free_actions (struct tracepoint *t); |
157 | static void free_actions_list (char **actions_list); |
158 | static void free_actions_list_cleanup_wrapper (void *); |
159 | |
160 | extern void _initialize_tracepoint (void); |
161 | |
162 | /* Utility: returns true if "target remote" */ |
163 | static int |
164 | target_is_remote (void) |
165 | { |
166 | if (current_target.to_shortname && |
167 | strcmp (current_target.to_shortname, "remote") == 0) |
168 | return 1; |
169 | else |
170 | return 0; |
171 | } |
172 | |
173 | /* Utility: generate error from an incoming stub packet. */ |
174 | static void |
175 | trace_error (char *buf) |
176 | { |
177 | if (*buf++ != 'E') |
178 | return; /* not an error msg */ |
179 | switch (*buf) |
180 | { |
181 | case '1': /* malformed packet error */ |
182 | if (*++buf == '0') /* general case: */ |
183 | error ("tracepoint.c: error in outgoing packet."); |
184 | else |
185 | error ("tracepoint.c: error in outgoing packet at field #%ld.", |
186 | strtol (buf, NULL((void*)0), 16)); |
187 | case '2': |
188 | error ("trace API error 0x%s.", ++buf); |
189 | default: |
190 | error ("Target returns error code '%s'.", buf); |
191 | } |
192 | } |
193 | |
194 | /* Utility: wait for reply from stub, while accepting "O" packets */ |
195 | static char * |
196 | remote_get_noisy_reply (char *buf, |
197 | long sizeof_buf) |
198 | { |
199 | do /* loop on reply from remote stub */ |
200 | { |
201 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
202 | getpkt (buf, sizeof_buf, 0); |
203 | if (buf[0] == 0) |
204 | error ("Target does not support this command."); |
205 | else if (buf[0] == 'E') |
206 | trace_error (buf); |
207 | else if (buf[0] == 'O' && |
208 | buf[1] != 'K') |
209 | remote_console_output (buf + 1); /* 'O' message from stub */ |
210 | else |
211 | return buf; /* here's the actual reply */ |
212 | } |
213 | while (1); |
214 | } |
215 | |
216 | /* Set tracepoint count to NUM. */ |
217 | static void |
218 | set_tracepoint_count (int num) |
219 | { |
220 | tracepoint_count = num; |
221 | set_internalvar (lookup_internalvar ("tpnum"), |
222 | value_from_longest (builtin_type_int, (LONGESTlong) num)); |
223 | } |
224 | |
225 | /* Set traceframe number to NUM. */ |
226 | static void |
227 | set_traceframe_num (int num) |
228 | { |
229 | traceframe_number = num; |
230 | set_internalvar (lookup_internalvar ("trace_frame"), |
231 | value_from_longest (builtin_type_int, (LONGESTlong) num)); |
232 | } |
233 | |
234 | /* Set tracepoint number to NUM. */ |
235 | static void |
236 | set_tracepoint_num (int num) |
237 | { |
238 | tracepoint_number = num; |
239 | set_internalvar (lookup_internalvar ("tracepoint"), |
240 | value_from_longest (builtin_type_int, (LONGESTlong) num)); |
241 | } |
242 | |
243 | /* Set externally visible debug variables for querying/printing |
244 | the traceframe context (line, function, file) */ |
245 | |
246 | static void |
247 | set_traceframe_context (CORE_ADDR trace_pc) |
248 | { |
249 | static struct type *func_string, *file_string; |
250 | static struct type *func_range, *file_range; |
251 | struct value *func_val; |
252 | struct value *file_val; |
253 | static struct type *charstar; |
254 | int len; |
255 | |
256 | if (charstar == (struct type *) NULL((void*)0)) |
257 | charstar = lookup_pointer_type (builtin_type_char); |
258 | |
259 | if (trace_pc == -1) /* cease debugging any trace buffers */ |
260 | { |
261 | traceframe_fun = 0; |
262 | traceframe_sal.pc = traceframe_sal.line = 0; |
263 | traceframe_sal.symtab = NULL((void*)0); |
264 | set_internalvar (lookup_internalvar ("trace_func"), |
265 | value_from_pointer (charstar, (LONGESTlong) 0)); |
266 | set_internalvar (lookup_internalvar ("trace_file"), |
267 | value_from_pointer (charstar, (LONGESTlong) 0)); |
268 | set_internalvar (lookup_internalvar ("trace_line"), |
269 | value_from_longest (builtin_type_int, (LONGESTlong) - 1)); |
270 | return; |
271 | } |
272 | |
273 | /* save as globals for internal use */ |
274 | traceframe_sal = find_pc_line (trace_pc, 0); |
275 | traceframe_fun = find_pc_function (trace_pc); |
276 | |
277 | /* save linenumber as "$trace_line", a debugger variable visible to users */ |
278 | set_internalvar (lookup_internalvar ("trace_line"), |
279 | value_from_longest (builtin_type_int, |
280 | (LONGESTlong) traceframe_sal.line)); |
281 | |
282 | /* save func name as "$trace_func", a debugger variable visible to users */ |
283 | if (traceframe_fun == NULL((void*)0) || |
284 | DEPRECATED_SYMBOL_NAME (traceframe_fun)(traceframe_fun)->ginfo.name == NULL((void*)0)) |
285 | set_internalvar (lookup_internalvar ("trace_func"), |
286 | value_from_pointer (charstar, (LONGESTlong) 0)); |
287 | else |
288 | { |
289 | len = strlen (DEPRECATED_SYMBOL_NAME (traceframe_fun)(traceframe_fun)->ginfo.name); |
290 | func_range = create_range_type (func_range, |
291 | builtin_type_int, 0, len - 1); |
292 | func_string = create_array_type (func_string, |
293 | builtin_type_char, func_range); |
294 | func_val = allocate_value (func_string); |
295 | VALUE_TYPE (func_val)(func_val)->type = func_string; |
296 | memcpy (VALUE_CONTENTS_RAW (func_val)((char *) (func_val)->aligner.contents + (func_val)->embedded_offset ), |
297 | DEPRECATED_SYMBOL_NAME (traceframe_fun)(traceframe_fun)->ginfo.name, |
298 | len); |
299 | func_val->modifiable = 0; |
300 | set_internalvar (lookup_internalvar ("trace_func"), func_val); |
301 | } |
302 | |
303 | /* save file name as "$trace_file", a debugger variable visible to users */ |
304 | if (traceframe_sal.symtab == NULL((void*)0) || |
305 | traceframe_sal.symtab->filename == NULL((void*)0)) |
306 | set_internalvar (lookup_internalvar ("trace_file"), |
307 | value_from_pointer (charstar, (LONGESTlong) 0)); |
308 | else |
309 | { |
310 | len = strlen (traceframe_sal.symtab->filename); |
311 | file_range = create_range_type (file_range, |
312 | builtin_type_int, 0, len - 1); |
313 | file_string = create_array_type (file_string, |
314 | builtin_type_char, file_range); |
315 | file_val = allocate_value (file_string); |
316 | VALUE_TYPE (file_val)(file_val)->type = file_string; |
317 | memcpy (VALUE_CONTENTS_RAW (file_val)((char *) (file_val)->aligner.contents + (file_val)->embedded_offset ), |
318 | traceframe_sal.symtab->filename, |
319 | len); |
320 | file_val->modifiable = 0; |
321 | set_internalvar (lookup_internalvar ("trace_file"), file_val); |
322 | } |
323 | } |
324 | |
325 | /* Low level routine to set a tracepoint. |
326 | Returns the tracepoint object so caller can set other things. |
327 | Does not set the tracepoint number! |
328 | Does not print anything. |
329 | |
330 | ==> This routine should not be called if there is a chance of later |
331 | error(); otherwise it leaves a bogus tracepoint on the chain. Validate |
332 | your arguments BEFORE calling this routine! */ |
333 | |
334 | static struct tracepoint * |
335 | set_raw_tracepoint (struct symtab_and_line sal) |
336 | { |
337 | struct tracepoint *t, *tc; |
338 | struct cleanup *old_chain; |
339 | |
340 | t = (struct tracepoint *) xmalloc (sizeof (struct tracepoint)); |
341 | old_chain = make_cleanup (xfree, t); |
342 | memset (t, 0, sizeof (*t)); |
343 | t->address = sal.pc; |
344 | if (sal.symtab == NULL((void*)0)) |
345 | t->source_file = NULL((void*)0); |
346 | else |
347 | t->source_file = savestring (sal.symtab->filename, |
348 | strlen (sal.symtab->filename)); |
349 | |
350 | t->section = sal.section; |
351 | t->language = current_language->la_language; |
352 | t->input_radix = input_radix; |
353 | t->line_number = sal.line; |
354 | t->enabled_p = 1; |
355 | t->next = 0; |
356 | t->step_count = 0; |
357 | t->pass_count = 0; |
358 | t->addr_string = NULL((void*)0); |
359 | |
360 | /* Add this tracepoint to the end of the chain |
361 | so that a list of tracepoints will come out in order |
362 | of increasing numbers. */ |
363 | |
364 | tc = tracepoint_chain; |
365 | if (tc == 0) |
366 | tracepoint_chain = t; |
367 | else |
368 | { |
369 | while (tc->next) |
370 | tc = tc->next; |
371 | tc->next = t; |
372 | } |
373 | discard_cleanups (old_chain); |
374 | return t; |
375 | } |
376 | |
377 | /* Set a tracepoint according to ARG (function, linenum or *address) */ |
378 | static void |
379 | trace_command (char *arg, int from_tty) |
380 | { |
381 | char **canonical = (char **) NULL((void*)0); |
382 | struct symtabs_and_lines sals; |
383 | struct symtab_and_line sal; |
384 | struct tracepoint *t; |
385 | char *addr_start = 0, *addr_end = 0; |
386 | int i; |
387 | |
388 | if (!arg || !*arg) |
389 | error ("trace command requires an argument"); |
390 | |
391 | if (from_tty && info_verbose) |
392 | printf_filtered ("TRACE %s\n", arg); |
393 | |
394 | addr_start = arg; |
395 | sals = decode_line_1 (&arg, 1, (struct symtab *) NULL((void*)0), 0, &canonical, NULL((void*)0)); |
396 | addr_end = arg; |
397 | if (!sals.nelts) |
398 | return; /* ??? Presumably decode_line_1 has already warned? */ |
399 | |
400 | /* Resolve all line numbers to PC's */ |
401 | for (i = 0; i < sals.nelts; i++) |
402 | resolve_sal_pc (&sals.sals[i]); |
403 | |
404 | /* Now set all the tracepoints. */ |
405 | for (i = 0; i < sals.nelts; i++) |
406 | { |
407 | sal = sals.sals[i]; |
408 | |
409 | t = set_raw_tracepoint (sal); |
410 | set_tracepoint_count (tracepoint_count + 1); |
411 | t->number = tracepoint_count; |
412 | |
413 | /* If a canonical line spec is needed use that instead of the |
414 | command string. */ |
415 | if (canonical != (char **) NULL((void*)0) && canonical[i] != NULL((void*)0)) |
416 | t->addr_string = canonical[i]; |
417 | else if (addr_start) |
418 | t->addr_string = savestring (addr_start, addr_end - addr_start); |
419 | |
420 | trace_mention (t); |
421 | } |
422 | |
423 | if (sals.nelts > 1) |
424 | { |
425 | printf_filtered ("Multiple tracepoints were set.\n"); |
426 | printf_filtered ("Use 'delete trace' to delete unwanted tracepoints.\n"); |
427 | } |
428 | } |
429 | |
430 | /* Tell the user we have just set a tracepoint TP. */ |
431 | |
432 | static void |
433 | trace_mention (struct tracepoint *tp) |
434 | { |
435 | printf_filtered ("Tracepoint %d", tp->number); |
436 | |
437 | if (addressprint || (tp->source_file == NULL((void*)0))) |
438 | { |
439 | printf_filtered (" at "); |
440 | print_address_numeric (tp->address, 1, gdb_stdout); |
441 | } |
442 | if (tp->source_file) |
443 | printf_filtered (": file %s, line %d.", |
444 | tp->source_file, tp->line_number); |
445 | |
446 | printf_filtered ("\n"); |
447 | } |
448 | |
449 | /* Print information on tracepoint number TPNUM_EXP, or all if omitted. */ |
450 | |
451 | static void |
452 | tracepoints_info (char *tpnum_exp, int from_tty) |
453 | { |
454 | struct tracepoint *t; |
455 | struct action_line *action; |
456 | int found_a_tracepoint = 0; |
457 | char wrap_indent[80]; |
458 | struct symbol *sym; |
459 | int tpnum = -1; |
460 | |
461 | if (tpnum_exp) |
462 | tpnum = parse_and_eval_long (tpnum_exp); |
463 | |
464 | ALL_TRACEPOINTS (t)for (t = tracepoint_chain; t; t = t->next) |
465 | if (tpnum == -1 || tpnum == t->number) |
466 | { |
467 | extern int addressprint; /* print machine addresses? */ |
468 | |
469 | if (!found_a_tracepoint++) |
470 | { |
471 | printf_filtered ("Num Enb "); |
472 | if (addressprint) |
473 | { |
474 | if (TARGET_ADDR_BIT(gdbarch_addr_bit (current_gdbarch)) <= 32) |
475 | printf_filtered ("Address "); |
476 | else |
477 | printf_filtered ("Address "); |
478 | } |
479 | printf_filtered ("PassC StepC What\n"); |
480 | } |
481 | strcpy (wrap_indent, " "); |
482 | if (addressprint) |
483 | { |
484 | if (TARGET_ADDR_BIT(gdbarch_addr_bit (current_gdbarch)) <= 32) |
485 | strcat (wrap_indent, " "); |
486 | else |
487 | strcat (wrap_indent, " "); |
488 | } |
489 | |
490 | printf_filtered ("%-3d %-3s ", t->number, |
491 | t->enabled_p ? "y" : "n"); |
492 | if (addressprint) |
493 | { |
494 | char *tmp; |
495 | |
496 | if (TARGET_ADDR_BIT(gdbarch_addr_bit (current_gdbarch)) <= 32) |
497 | tmp = hex_string_custom (t->address & (CORE_ADDR) 0xffffffff, |
498 | 8); |
499 | else |
500 | tmp = hex_string_custom (t->address, 16); |
501 | |
502 | printf_filtered ("%s ", tmp); |
503 | } |
504 | printf_filtered ("%-5d %-5ld ", t->pass_count, t->step_count); |
505 | |
506 | if (t->source_file) |
507 | { |
508 | sym = find_pc_sect_function (t->address, t->section); |
509 | if (sym) |
510 | { |
511 | fputs_filtered ("in ", gdb_stdout); |
512 | fputs_filtered (SYMBOL_PRINT_NAME (sym)(demangle ? (symbol_natural_name (&(sym)->ginfo)) : (sym )->ginfo.name), gdb_stdout); |
513 | wrap_here (wrap_indent); |
514 | fputs_filtered (" at ", gdb_stdout); |
515 | } |
516 | fputs_filtered (t->source_file, gdb_stdout); |
517 | printf_filtered (":%d", t->line_number); |
518 | } |
519 | else |
520 | print_address_symbolic (t->address, gdb_stdout, demangle, " "); |
521 | |
522 | printf_filtered ("\n"); |
523 | if (t->actions) |
524 | { |
525 | printf_filtered (" Actions for tracepoint %d: \n", t->number); |
526 | for (action = t->actions; action; action = action->next) |
527 | { |
528 | printf_filtered ("\t%s\n", action->action); |
529 | } |
530 | } |
531 | } |
532 | if (!found_a_tracepoint) |
533 | { |
534 | if (tpnum == -1) |
535 | printf_filtered ("No tracepoints.\n"); |
536 | else |
537 | printf_filtered ("No tracepoint number %d.\n", tpnum); |
538 | } |
539 | } |
540 | |
541 | /* Optimization: the code to parse an enable, disable, or delete TP command |
542 | is virtually identical except for whether it performs an enable, disable, |
543 | or delete. Therefore I've combined them into one function with an opcode. |
544 | */ |
545 | enum tracepoint_opcode |
546 | { |
547 | enable_op, |
548 | disable_op, |
549 | delete_op |
550 | }; |
551 | |
552 | /* This function implements enable, disable and delete commands. */ |
553 | static void |
554 | tracepoint_operation (struct tracepoint *t, int from_tty, |
555 | enum tracepoint_opcode opcode) |
556 | { |
557 | struct tracepoint *t2; |
558 | |
559 | if (t == NULL((void*)0)) /* no tracepoint operand */ |
560 | return; |
561 | |
562 | switch (opcode) |
563 | { |
564 | case enable_op: |
565 | t->enabled_p = 1; |
566 | tracepoint_modify_event (t->number); |
567 | break; |
568 | case disable_op: |
569 | t->enabled_p = 0; |
570 | tracepoint_modify_event (t->number); |
571 | break; |
572 | case delete_op: |
573 | if (tracepoint_chain == t) |
574 | tracepoint_chain = t->next; |
575 | |
576 | ALL_TRACEPOINTS (t2)for (t2 = tracepoint_chain; t2; t2 = t2->next) |
577 | if (t2->next == t) |
578 | { |
579 | tracepoint_delete_event (t2->number); |
580 | t2->next = t->next; |
581 | break; |
582 | } |
583 | |
584 | if (t->addr_string) |
585 | xfree (t->addr_string); |
586 | if (t->source_file) |
587 | xfree (t->source_file); |
588 | if (t->actions) |
589 | free_actions (t); |
590 | |
591 | xfree (t); |
592 | break; |
593 | } |
594 | } |
595 | |
596 | /* Utility: parse a tracepoint number and look it up in the list. |
597 | If MULTI_P is true, there might be a range of tracepoints in ARG. |
598 | if OPTIONAL_P is true, then if the argument is missing, the most |
599 | recent tracepoint (tracepoint_count) is returned. */ |
600 | struct tracepoint * |
601 | get_tracepoint_by_number (char **arg, int multi_p, int optional_p) |
602 | { |
603 | struct tracepoint *t; |
604 | int tpnum; |
605 | char *instring = arg == NULL((void*)0) ? NULL((void*)0) : *arg; |
606 | |
607 | if (arg == NULL((void*)0) || *arg == NULL((void*)0) || ! **arg) |
608 | { |
609 | if (optional_p) |
610 | tpnum = tracepoint_count; |
611 | else |
612 | error_no_arg ("tracepoint number"); |
613 | } |
614 | else |
615 | tpnum = multi_p ? get_number_or_range (arg) : get_number (arg); |
616 | |
617 | if (tpnum <= 0) |
618 | { |
619 | if (instring && *instring) |
620 | printf_filtered ("bad tracepoint number at or near '%s'\n", instring); |
621 | else |
622 | printf_filtered ("Tracepoint argument missing and no previous tracepoint\n"); |
623 | return NULL((void*)0); |
624 | } |
625 | |
626 | ALL_TRACEPOINTS (t)for (t = tracepoint_chain; t; t = t->next) |
627 | if (t->number == tpnum) |
628 | { |
629 | return t; |
630 | } |
631 | |
632 | /* FIXME: if we are in the middle of a range we don't want to give |
633 | a message. The current interface to get_number_or_range doesn't |
634 | allow us to discover this. */ |
635 | printf_unfiltered ("No tracepoint number %d.\n", tpnum); |
636 | return NULL((void*)0); |
637 | } |
638 | |
639 | /* Utility: parse a list of tracepoint numbers, and call a func for each. */ |
640 | static void |
641 | map_args_over_tracepoints (char *args, int from_tty, |
642 | enum tracepoint_opcode opcode) |
643 | { |
644 | struct tracepoint *t, *tmp; |
645 | |
646 | if (args == 0 || *args == 0) /* do them all */ |
647 | ALL_TRACEPOINTS_SAFE (t, tmp)for (t = tracepoint_chain; t ? (tmp = t->next, 1) : 0; t = tmp) |
648 | tracepoint_operation (t, from_tty, opcode); |
649 | else |
650 | while (*args) |
651 | { |
652 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* give user option to bail out with ^C */ |
653 | t = get_tracepoint_by_number (&args, 1, 0); |
654 | tracepoint_operation (t, from_tty, opcode); |
655 | while (*args == ' ' || *args == '\t') |
656 | args++; |
657 | } |
658 | } |
659 | |
660 | /* The 'enable trace' command enables tracepoints. Not supported by all targets. */ |
661 | static void |
662 | enable_trace_command (char *args, int from_tty) |
663 | { |
664 | dont_repeat (); |
665 | map_args_over_tracepoints (args, from_tty, enable_op); |
666 | } |
667 | |
668 | /* The 'disable trace' command enables tracepoints. Not supported by all targets. */ |
669 | static void |
670 | disable_trace_command (char *args, int from_tty) |
671 | { |
672 | dont_repeat (); |
673 | map_args_over_tracepoints (args, from_tty, disable_op); |
674 | } |
675 | |
676 | /* Remove a tracepoint (or all if no argument) */ |
677 | static void |
678 | delete_trace_command (char *args, int from_tty) |
679 | { |
680 | dont_repeat (); |
681 | if (!args || !*args) /* No args implies all tracepoints; */ |
682 | if (from_tty) /* confirm only if from_tty... */ |
683 | if (tracepoint_chain) /* and if there are tracepoints to delete! */ |
684 | if (!query ("Delete all tracepoints? ")) |
685 | return; |
686 | |
687 | map_args_over_tracepoints (args, from_tty, delete_op); |
688 | } |
689 | |
690 | /* Set passcount for tracepoint. |
691 | |
692 | First command argument is passcount, second is tracepoint number. |
693 | If tracepoint number omitted, apply to most recently defined. |
694 | Also accepts special argument "all". */ |
695 | |
696 | static void |
697 | trace_pass_command (char *args, int from_tty) |
698 | { |
699 | struct tracepoint *t1 = (struct tracepoint *) -1, *t2; |
700 | unsigned int count; |
701 | int all = 0; |
702 | |
703 | if (args == 0 || *args == 0) |
704 | error ("passcount command requires an argument (count + optional TP num)"); |
705 | |
706 | count = strtoul (args, &args, 10); /* count comes first, then TP num */ |
707 | |
708 | while (*args && isspace ((int) *args)) |
709 | args++; |
710 | |
711 | if (*args && strncasecmp (args, "all", 3) == 0) |
712 | { |
713 | args += 3; /* skip special argument "all" */ |
714 | all = 1; |
715 | if (*args) |
716 | error ("Junk at end of arguments."); |
717 | } |
718 | else |
719 | t1 = get_tracepoint_by_number (&args, 1, 1); |
720 | |
721 | do |
722 | { |
723 | if (t1) |
724 | { |
725 | ALL_TRACEPOINTS (t2)for (t2 = tracepoint_chain; t2; t2 = t2->next) |
726 | if (t1 == (struct tracepoint *) -1 || t1 == t2) |
727 | { |
728 | t2->pass_count = count; |
729 | tracepoint_modify_event (t2->number); |
730 | if (from_tty) |
731 | printf_filtered ("Setting tracepoint %d's passcount to %d\n", |
732 | t2->number, count); |
733 | } |
734 | if (! all && *args) |
735 | t1 = get_tracepoint_by_number (&args, 1, 0); |
736 | } |
737 | } |
738 | while (*args); |
739 | } |
740 | |
741 | /* ACTIONS functions: */ |
742 | |
743 | /* Prototypes for action-parsing utility commands */ |
744 | static void read_actions (struct tracepoint *); |
745 | |
746 | /* The three functions: |
747 | collect_pseudocommand, |
748 | while_stepping_pseudocommand, and |
749 | end_actions_pseudocommand |
750 | are placeholders for "commands" that are actually ONLY to be used |
751 | within a tracepoint action list. If the actual function is ever called, |
752 | it means that somebody issued the "command" at the top level, |
753 | which is always an error. */ |
754 | |
755 | static void |
756 | end_actions_pseudocommand (char *args, int from_tty) |
757 | { |
758 | error ("This command cannot be used at the top level."); |
759 | } |
760 | |
761 | static void |
762 | while_stepping_pseudocommand (char *args, int from_tty) |
763 | { |
764 | error ("This command can only be used in a tracepoint actions list."); |
765 | } |
766 | |
767 | static void |
768 | collect_pseudocommand (char *args, int from_tty) |
769 | { |
770 | error ("This command can only be used in a tracepoint actions list."); |
771 | } |
772 | |
773 | /* Enter a list of actions for a tracepoint. */ |
774 | static void |
775 | trace_actions_command (char *args, int from_tty) |
776 | { |
777 | struct tracepoint *t; |
778 | char tmpbuf[128]; |
779 | char *end_msg = "End with a line saying just \"end\"."; |
780 | |
781 | t = get_tracepoint_by_number (&args, 0, 1); |
782 | if (t) |
783 | { |
784 | sprintf (tmpbuf, "Enter actions for tracepoint %d, one per line.", |
785 | t->number); |
786 | |
787 | if (from_tty) |
788 | { |
789 | if (deprecated_readline_begin_hook) |
790 | (*deprecated_readline_begin_hook) ("%s %s\n", tmpbuf, end_msg); |
791 | else if (input_from_terminal_p ()) |
792 | printf_filtered ("%s\n%s\n", tmpbuf, end_msg); |
793 | } |
794 | |
795 | free_actions (t); |
796 | t->step_count = 0; /* read_actions may set this */ |
797 | read_actions (t); |
798 | |
799 | if (deprecated_readline_end_hook) |
800 | (*deprecated_readline_end_hook) (); |
801 | /* tracepoints_changed () */ |
802 | } |
803 | /* else just return */ |
804 | } |
805 | |
806 | /* worker function */ |
807 | static void |
808 | read_actions (struct tracepoint *t) |
809 | { |
810 | char *line; |
811 | char *prompt1 = "> ", *prompt2 = " > "; |
812 | char *prompt = prompt1; |
813 | enum actionline_type linetype; |
814 | extern FILE *instream; |
815 | struct action_line *next = NULL((void*)0), *temp; |
816 | struct cleanup *old_chain; |
817 | |
818 | /* Control-C quits instantly if typed while in this loop |
819 | since it should not wait until the user types a newline. */ |
820 | immediate_quit++; |
821 | /* FIXME: kettenis/20010823: Something is wrong here. In this file |
822 | STOP_SIGNAL is never defined. So this code has been left out, at |
823 | least for quite a while now. Replacing STOP_SIGNAL with SIGTSTP |
824 | leads to compilation failures since the variable job_control |
825 | isn't declared. Leave this alone for now. */ |
826 | #ifdef STOP_SIGNAL |
827 | if (job_control) |
828 | signal (STOP_SIGNAL, handle_stop_sig); |
829 | #endif |
830 | old_chain = make_cleanup_free_actions (t); |
831 | while (1) |
832 | { |
833 | /* Make sure that all output has been output. Some machines may let |
834 | you get away with leaving out some of the gdb_flush, but not all. */ |
835 | wrap_here (""); |
836 | gdb_flush (gdb_stdout); |
837 | gdb_flush (gdb_stderr); |
838 | |
839 | if (deprecated_readline_hook && instream == NULL((void*)0)) |
840 | line = (*deprecated_readline_hook) (prompt); |
841 | else if (instream == stdin(&__sF[0]) && ISATTY (instream)(isatty ((!__isthreaded ? ((instream)->_file) : (fileno)(instream ))))) |
842 | { |
843 | line = gdb_readline_wrapper (prompt); |
844 | if (line && *line) /* add it to command history */ |
845 | add_history (line); |
846 | } |
847 | else |
848 | line = gdb_readline (0); |
849 | |
850 | linetype = validate_actionline (&line, t); |
851 | if (linetype == BADLINE) |
852 | continue; /* already warned -- collect another line */ |
853 | |
854 | temp = xmalloc (sizeof (struct action_line)); |
855 | temp->next = NULL((void*)0); |
856 | temp->action = line; |
857 | |
858 | if (next == NULL((void*)0)) /* first action for this tracepoint? */ |
859 | t->actions = next = temp; |
860 | else |
861 | { |
862 | next->next = temp; |
863 | next = temp; |
864 | } |
865 | |
866 | if (linetype == STEPPING) /* begin "while-stepping" */ |
867 | { |
868 | if (prompt == prompt2) |
869 | { |
870 | warning ("Already processing 'while-stepping'"); |
871 | continue; |
872 | } |
873 | else |
874 | prompt = prompt2; /* change prompt for stepping actions */ |
875 | } |
876 | else if (linetype == END) |
877 | { |
878 | if (prompt == prompt2) |
879 | { |
880 | prompt = prompt1; /* end of single-stepping actions */ |
881 | } |
882 | else |
883 | { /* end of actions */ |
884 | if (t->actions->next == NULL((void*)0)) |
885 | { |
886 | /* an "end" all by itself with no other actions means |
887 | this tracepoint has no actions. Discard empty list. */ |
888 | free_actions (t); |
889 | } |
890 | break; |
891 | } |
892 | } |
893 | } |
894 | #ifdef STOP_SIGNAL |
895 | if (job_control) |
896 | signal (STOP_SIGNAL, SIG_DFL); |
897 | #endif |
898 | immediate_quit--; |
899 | discard_cleanups (old_chain); |
900 | } |
901 | |
902 | /* worker function */ |
903 | enum actionline_type |
904 | validate_actionline (char **line, struct tracepoint *t) |
905 | { |
906 | struct cmd_list_element *c; |
907 | struct expression *exp = NULL((void*)0); |
908 | struct cleanup *old_chain = NULL((void*)0); |
909 | char *p; |
910 | |
911 | /* if EOF is typed, *line is NULL */ |
912 | if (*line == NULL((void*)0)) |
913 | return END; |
914 | |
915 | for (p = *line; isspace ((int) *p);) |
916 | p++; |
917 | |
918 | /* symbol lookup etc. */ |
919 | if (*p == '\0') /* empty line: just prompt for another line. */ |
920 | return BADLINE; |
921 | |
922 | if (*p == '#') /* comment line */ |
923 | return GENERIC; |
924 | |
925 | c = lookup_cmd (&p, cmdlist, "", -1, 1); |
926 | if (c == 0) |
927 | { |
928 | warning ("'%s' is not an action that I know, or is ambiguous.", p); |
929 | return BADLINE; |
930 | } |
931 | |
932 | if (cmd_cfunc_eq (c, collect_pseudocommand)) |
933 | { |
934 | struct agent_expr *aexpr; |
935 | struct agent_reqs areqs; |
936 | |
937 | do |
938 | { /* repeat over a comma-separated list */ |
939 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
940 | while (isspace ((int) *p)) |
941 | p++; |
942 | |
943 | if (*p == '$') /* look for special pseudo-symbols */ |
944 | { |
945 | if ((0 == strncasecmp ("reg", p + 1, 3)) || |
946 | (0 == strncasecmp ("arg", p + 1, 3)) || |
947 | (0 == strncasecmp ("loc", p + 1, 3))) |
948 | { |
949 | p = strchr (p, ','); |
950 | continue; |
951 | } |
952 | /* else fall thru, treat p as an expression and parse it! */ |
953 | } |
954 | exp = parse_exp_1 (&p, block_for_pc (t->address), 1); |
955 | old_chain = make_cleanup (free_current_contents, &exp); |
956 | |
957 | if (exp->elts[0].opcode == OP_VAR_VALUE) |
958 | { |
959 | if (SYMBOL_CLASS (exp->elts[2].symbol)(exp->elts[2].symbol)->aclass == LOC_CONST) |
960 | { |
961 | warning ("constant %s (value %ld) will not be collected.", |
962 | DEPRECATED_SYMBOL_NAME (exp->elts[2].symbol)(exp->elts[2].symbol)->ginfo.name, |
963 | SYMBOL_VALUE (exp->elts[2].symbol)(exp->elts[2].symbol)->ginfo.value.ivalue); |
964 | return BADLINE; |
965 | } |
966 | else if (SYMBOL_CLASS (exp->elts[2].symbol)(exp->elts[2].symbol)->aclass == LOC_OPTIMIZED_OUT) |
967 | { |
968 | warning ("%s is optimized away and cannot be collected.", |
969 | DEPRECATED_SYMBOL_NAME (exp->elts[2].symbol)(exp->elts[2].symbol)->ginfo.name); |
970 | return BADLINE; |
971 | } |
972 | } |
973 | |
974 | /* we have something to collect, make sure that the expr to |
975 | bytecode translator can handle it and that it's not too long */ |
976 | aexpr = gen_trace_for_expr (t->address, exp); |
977 | make_cleanup_free_agent_expr (aexpr); |
978 | |
979 | if (aexpr->len > MAX_AGENT_EXPR_LEN184) |
980 | error ("expression too complicated, try simplifying"); |
981 | |
982 | ax_reqs (aexpr, &areqs); |
983 | (void) make_cleanup (xfree, areqs.reg_mask); |
984 | |
985 | if (areqs.flaw != agent_flaw_none) |
986 | error ("malformed expression"); |
987 | |
988 | if (areqs.min_height < 0) |
989 | error ("gdb: Internal error: expression has min height < 0"); |
990 | |
991 | if (areqs.max_height > 20) |
992 | error ("expression too complicated, try simplifying"); |
993 | |
994 | do_cleanups (old_chain); |
995 | } |
996 | while (p && *p++ == ','); |
997 | return GENERIC; |
998 | } |
999 | else if (cmd_cfunc_eq (c, while_stepping_pseudocommand)) |
1000 | { |
1001 | char *steparg; /* in case warning is necessary */ |
1002 | |
1003 | while (isspace ((int) *p)) |
1004 | p++; |
1005 | steparg = p; |
Value stored to 'steparg' is never read | |
1006 | |
1007 | if (*p == '\0' || |
1008 | (t->step_count = strtol (p, &p, 0)) == 0) |
1009 | { |
1010 | warning ("'%s': bad step-count; command ignored.", *line); |
1011 | return BADLINE; |
1012 | } |
1013 | return STEPPING; |
1014 | } |
1015 | else if (cmd_cfunc_eq (c, end_actions_pseudocommand)) |
1016 | return END; |
1017 | else |
1018 | { |
1019 | warning ("'%s' is not a supported tracepoint action.", *line); |
1020 | return BADLINE; |
1021 | } |
1022 | } |
1023 | |
1024 | /* worker function */ |
1025 | void |
1026 | free_actions (struct tracepoint *t) |
1027 | { |
1028 | struct action_line *line, *next; |
1029 | |
1030 | for (line = t->actions; line; line = next) |
1031 | { |
1032 | next = line->next; |
1033 | if (line->action) |
1034 | xfree (line->action); |
1035 | xfree (line); |
1036 | } |
1037 | t->actions = NULL((void*)0); |
1038 | } |
1039 | |
1040 | static void |
1041 | do_free_actions_cleanup (void *t) |
1042 | { |
1043 | free_actions (t); |
1044 | } |
1045 | |
1046 | static struct cleanup * |
1047 | make_cleanup_free_actions (struct tracepoint *t) |
1048 | { |
1049 | return make_cleanup (do_free_actions_cleanup, t); |
1050 | } |
1051 | |
1052 | struct memrange |
1053 | { |
1054 | int type; /* 0 for absolute memory range, else basereg number */ |
1055 | bfd_signed_vma start; |
1056 | bfd_signed_vma end; |
1057 | }; |
1058 | |
1059 | struct collection_list |
1060 | { |
1061 | unsigned char regs_mask[8]; /* room for up to 256 regs */ |
1062 | long listsize; |
1063 | long next_memrange; |
1064 | struct memrange *list; |
1065 | long aexpr_listsize; /* size of array pointed to by expr_list elt */ |
1066 | long next_aexpr_elt; |
1067 | struct agent_expr **aexpr_list; |
1068 | |
1069 | } |
1070 | tracepoint_list, stepping_list; |
1071 | |
1072 | /* MEMRANGE functions: */ |
1073 | |
1074 | static int memrange_cmp (const void *, const void *); |
1075 | |
1076 | /* compare memranges for qsort */ |
1077 | static int |
1078 | memrange_cmp (const void *va, const void *vb) |
1079 | { |
1080 | const struct memrange *a = va, *b = vb; |
1081 | |
1082 | if (a->type < b->type) |
1083 | return -1; |
1084 | if (a->type > b->type) |
1085 | return 1; |
1086 | if (a->type == 0) |
1087 | { |
1088 | if ((bfd_vma) a->start < (bfd_vma) b->start) |
1089 | return -1; |
1090 | if ((bfd_vma) a->start > (bfd_vma) b->start) |
1091 | return 1; |
1092 | } |
1093 | else |
1094 | { |
1095 | if (a->start < b->start) |
1096 | return -1; |
1097 | if (a->start > b->start) |
1098 | return 1; |
1099 | } |
1100 | return 0; |
1101 | } |
1102 | |
1103 | /* Sort the memrange list using qsort, and merge adjacent memranges */ |
1104 | static void |
1105 | memrange_sortmerge (struct collection_list *memranges) |
1106 | { |
1107 | int a, b; |
1108 | |
1109 | qsort (memranges->list, memranges->next_memrange, |
1110 | sizeof (struct memrange), memrange_cmp); |
1111 | if (memranges->next_memrange > 0) |
1112 | { |
1113 | for (a = 0, b = 1; b < memranges->next_memrange; b++) |
1114 | { |
1115 | if (memranges->list[a].type == memranges->list[b].type && |
1116 | memranges->list[b].start - memranges->list[a].end <= |
1117 | MAX_REGISTER_SIZE) |
1118 | { |
1119 | /* memrange b starts before memrange a ends; merge them. */ |
1120 | if (memranges->list[b].end > memranges->list[a].end) |
1121 | memranges->list[a].end = memranges->list[b].end; |
1122 | continue; /* next b, same a */ |
1123 | } |
1124 | a++; /* next a */ |
1125 | if (a != b) |
1126 | memcpy (&memranges->list[a], &memranges->list[b], |
1127 | sizeof (struct memrange)); |
1128 | } |
1129 | memranges->next_memrange = a + 1; |
1130 | } |
1131 | } |
1132 | |
1133 | /* Add a register to a collection list */ |
1134 | static void |
1135 | add_register (struct collection_list *collection, unsigned int regno) |
1136 | { |
1137 | if (info_verbose) |
1138 | printf_filtered ("collect register %d\n", regno); |
1139 | if (regno > (8 * sizeof (collection->regs_mask))) |
1140 | error ("Internal: register number %d too large for tracepoint", |
1141 | regno); |
1142 | collection->regs_mask[regno / 8] |= 1 << (regno % 8); |
1143 | } |
1144 | |
1145 | /* Add a memrange to a collection list */ |
1146 | static void |
1147 | add_memrange (struct collection_list *memranges, int type, bfd_signed_vma base, |
1148 | unsigned long len) |
1149 | { |
1150 | if (info_verbose) |
1151 | { |
1152 | printf_filtered ("(%d,", type); |
1153 | printf_vma (base)fprintf ((&__sF[1]), "%016lx", base); |
1154 | printf_filtered (",%ld)\n", len); |
1155 | } |
1156 | |
1157 | /* type: 0 == memory, n == basereg */ |
1158 | memranges->list[memranges->next_memrange].type = type; |
1159 | /* base: addr if memory, offset if reg relative. */ |
1160 | memranges->list[memranges->next_memrange].start = base; |
1161 | /* len: we actually save end (base + len) for convenience */ |
1162 | memranges->list[memranges->next_memrange].end = base + len; |
1163 | memranges->next_memrange++; |
1164 | if (memranges->next_memrange >= memranges->listsize) |
1165 | { |
1166 | memranges->listsize *= 2; |
1167 | memranges->list = xrealloc (memranges->list, |
1168 | memranges->listsize); |
1169 | } |
1170 | |
1171 | if (type != -1) /* better collect the base register! */ |
1172 | add_register (memranges, type); |
1173 | } |
1174 | |
1175 | /* Add a symbol to a collection list */ |
1176 | static void |
1177 | collect_symbol (struct collection_list *collect, struct symbol *sym, |
1178 | long frame_regno, long frame_offset) |
1179 | { |
1180 | unsigned long len; |
1181 | unsigned int reg; |
1182 | bfd_signed_vma offset; |
1183 | |
1184 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))(check_typedef ((sym)->type))->length; |
1185 | switch (SYMBOL_CLASS (sym)(sym)->aclass) |
1186 | { |
1187 | default: |
1188 | printf_filtered ("%s: don't know symbol class %d\n", |
1189 | DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name, SYMBOL_CLASS (sym)(sym)->aclass); |
1190 | break; |
1191 | case LOC_CONST: |
1192 | printf_filtered ("constant %s (value %ld) will not be collected.\n", |
1193 | DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name, SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue); |
1194 | break; |
1195 | case LOC_STATIC: |
1196 | offset = SYMBOL_VALUE_ADDRESS (sym)(sym)->ginfo.value.address; |
1197 | if (info_verbose) |
1198 | { |
1199 | char tmp[40]; |
1200 | |
1201 | sprintf_vma (tmp, offset)sprintf (tmp, "%016lx", offset); |
1202 | printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", |
1203 | DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name, len, tmp /* address */); |
1204 | } |
1205 | add_memrange (collect, -1, offset, len); /* 0 == memory */ |
1206 | break; |
1207 | case LOC_REGISTER: |
1208 | case LOC_REGPARM: |
1209 | reg = SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue; |
1210 | if (info_verbose) |
1211 | printf_filtered ("LOC_REG[parm] %s: ", DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name); |
1212 | add_register (collect, reg); |
1213 | /* check for doubles stored in two registers */ |
1214 | /* FIXME: how about larger types stored in 3 or more regs? */ |
1215 | if (TYPE_CODE (SYMBOL_TYPE (sym))((sym)->type)->main_type->code == TYPE_CODE_FLT && |
1216 | len > register_size (current_gdbarch, reg)) |
1217 | add_register (collect, reg + 1); |
1218 | break; |
1219 | case LOC_REF_ARG: |
1220 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); |
1221 | printf_filtered (" (will not collect %s)\n", |
1222 | DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name); |
1223 | break; |
1224 | case LOC_ARG: |
1225 | reg = frame_regno; |
1226 | offset = frame_offset + SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue; |
1227 | if (info_verbose) |
1228 | { |
1229 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
1230 | DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name, len); |
1231 | printf_vma (offset)fprintf ((&__sF[1]), "%016lx", offset); |
1232 | printf_filtered (" from frame ptr reg %d\n", reg); |
1233 | } |
1234 | add_memrange (collect, reg, offset, len); |
1235 | break; |
1236 | case LOC_REGPARM_ADDR: |
1237 | reg = SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue; |
1238 | offset = 0; |
1239 | if (info_verbose) |
1240 | { |
1241 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ", |
1242 | DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name, len); |
1243 | printf_vma (offset)fprintf ((&__sF[1]), "%016lx", offset); |
1244 | printf_filtered (" from reg %d\n", reg); |
1245 | } |
1246 | add_memrange (collect, reg, offset, len); |
1247 | break; |
1248 | case LOC_LOCAL: |
1249 | case LOC_LOCAL_ARG: |
1250 | reg = frame_regno; |
1251 | offset = frame_offset + SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue; |
1252 | if (info_verbose) |
1253 | { |
1254 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
1255 | DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name, len); |
1256 | printf_vma (offset)fprintf ((&__sF[1]), "%016lx", offset); |
1257 | printf_filtered (" from frame ptr reg %d\n", reg); |
1258 | } |
1259 | add_memrange (collect, reg, offset, len); |
1260 | break; |
1261 | case LOC_BASEREG: |
1262 | case LOC_BASEREG_ARG: |
1263 | reg = SYMBOL_BASEREG (sym)(sym)->aux_value.basereg; |
1264 | offset = SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue; |
1265 | if (info_verbose) |
1266 | { |
1267 | printf_filtered ("LOC_BASEREG %s: collect %ld bytes at offset ", |
1268 | DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name, len); |
1269 | printf_vma (offset)fprintf ((&__sF[1]), "%016lx", offset); |
1270 | printf_filtered (" from basereg %d\n", reg); |
1271 | } |
1272 | add_memrange (collect, reg, offset, len); |
1273 | break; |
1274 | case LOC_UNRESOLVED: |
1275 | printf_filtered ("Don't know LOC_UNRESOLVED %s\n", DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name); |
1276 | break; |
1277 | case LOC_OPTIMIZED_OUT: |
1278 | printf_filtered ("%s has been optimized out of existence.\n", |
1279 | DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name); |
1280 | break; |
1281 | } |
1282 | } |
1283 | |
1284 | /* Add all locals (or args) symbols to collection list */ |
1285 | static void |
1286 | add_local_symbols (struct collection_list *collect, CORE_ADDR pc, |
1287 | long frame_regno, long frame_offset, int type) |
1288 | { |
1289 | struct symbol *sym; |
1290 | struct block *block; |
1291 | struct dict_iterator iter; |
1292 | int count = 0; |
1293 | |
1294 | block = block_for_pc (pc); |
1295 | while (block != 0) |
1296 | { |
1297 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
1298 | ALL_BLOCK_SYMBOLS (block, iter, sym)for ((sym) = dict_iterator_first (((block)->dict), &(iter )); (sym); (sym) = dict_iterator_next (&(iter))) |
1299 | { |
1300 | switch (SYMBOL_CLASS (sym)(sym)->aclass) |
1301 | { |
1302 | default: |
1303 | warning ("don't know how to trace local symbol %s", |
1304 | DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name); |
1305 | case LOC_LOCAL: |
1306 | case LOC_STATIC: |
1307 | case LOC_REGISTER: |
1308 | case LOC_BASEREG: |
1309 | if (type == 'L') /* collecting Locals */ |
1310 | { |
1311 | count++; |
1312 | collect_symbol (collect, sym, frame_regno, frame_offset); |
1313 | } |
1314 | break; |
1315 | case LOC_ARG: |
1316 | case LOC_LOCAL_ARG: |
1317 | case LOC_REF_ARG: |
1318 | case LOC_REGPARM: |
1319 | case LOC_REGPARM_ADDR: |
1320 | case LOC_BASEREG_ARG: |
1321 | if (type == 'A') /* collecting Arguments */ |
1322 | { |
1323 | count++; |
1324 | collect_symbol (collect, sym, frame_regno, frame_offset); |
1325 | } |
1326 | } |
1327 | } |
1328 | if (BLOCK_FUNCTION (block)(block)->function) |
1329 | break; |
1330 | else |
1331 | block = BLOCK_SUPERBLOCK (block)(block)->superblock; |
1332 | } |
1333 | if (count == 0) |
1334 | warning ("No %s found in scope.", type == 'L' ? "locals" : "args"); |
1335 | } |
1336 | |
1337 | /* worker function */ |
1338 | static void |
1339 | clear_collection_list (struct collection_list *list) |
1340 | { |
1341 | int ndx; |
1342 | |
1343 | list->next_memrange = 0; |
1344 | for (ndx = 0; ndx < list->next_aexpr_elt; ndx++) |
1345 | { |
1346 | free_agent_expr (list->aexpr_list[ndx]); |
1347 | list->aexpr_list[ndx] = NULL((void*)0); |
1348 | } |
1349 | list->next_aexpr_elt = 0; |
1350 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); |
1351 | } |
1352 | |
1353 | /* reduce a collection list to string form (for gdb protocol) */ |
1354 | static char ** |
1355 | stringify_collection_list (struct collection_list *list, char *string) |
1356 | { |
1357 | char temp_buf[2048]; |
1358 | char tmp2[40]; |
1359 | int count; |
1360 | int ndx = 0; |
1361 | char *(*str_list)[]; |
1362 | char *end; |
1363 | long i; |
1364 | |
1365 | count = 1 + list->next_memrange + list->next_aexpr_elt + 1; |
1366 | str_list = (char *(*)[]) xmalloc (count * sizeof (char *)); |
1367 | |
1368 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) |
1369 | if (list->regs_mask[i] != 0) /* skip leading zeroes in regs_mask */ |
1370 | break; |
1371 | if (list->regs_mask[i] != 0) /* prepare to send regs_mask to the stub */ |
1372 | { |
1373 | if (info_verbose) |
1374 | printf_filtered ("\nCollecting registers (mask): 0x"); |
1375 | end = temp_buf; |
1376 | *end++ = 'R'; |
1377 | for (; i >= 0; i--) |
1378 | { |
1379 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
1380 | if (info_verbose) |
1381 | printf_filtered ("%02X", list->regs_mask[i]); |
1382 | sprintf (end, "%02X", list->regs_mask[i]); |
1383 | end += 2; |
1384 | } |
1385 | (*str_list)[ndx] = savestring (temp_buf, end - temp_buf); |
1386 | ndx++; |
1387 | } |
1388 | if (info_verbose) |
1389 | printf_filtered ("\n"); |
1390 | if (list->next_memrange > 0 && info_verbose) |
1391 | printf_filtered ("Collecting memranges: \n"); |
1392 | for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++) |
1393 | { |
1394 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
1395 | sprintf_vma (tmp2, list->list[i].start)sprintf (tmp2, "%016lx", list->list[i].start); |
1396 | if (info_verbose) |
1397 | { |
1398 | printf_filtered ("(%d, %s, %ld)\n", |
1399 | list->list[i].type, |
1400 | tmp2, |
1401 | (long) (list->list[i].end - list->list[i].start)); |
1402 | } |
1403 | if (count + 27 > MAX_AGENT_EXPR_LEN184) |
1404 | { |
1405 | (*str_list)[ndx] = savestring (temp_buf, count); |
1406 | ndx++; |
1407 | count = 0; |
1408 | end = temp_buf; |
1409 | } |
1410 | |
1411 | sprintf (end, "M%X,%s,%lX", |
1412 | list->list[i].type, |
1413 | tmp2, |
1414 | (long) (list->list[i].end - list->list[i].start)); |
1415 | |
1416 | count += strlen (end); |
1417 | end += count; |
1418 | } |
1419 | |
1420 | for (i = 0; i < list->next_aexpr_elt; i++) |
1421 | { |
1422 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
1423 | if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN184) |
1424 | { |
1425 | (*str_list)[ndx] = savestring (temp_buf, count); |
1426 | ndx++; |
1427 | count = 0; |
1428 | end = temp_buf; |
1429 | } |
1430 | sprintf (end, "X%08X,", list->aexpr_list[i]->len); |
1431 | end += 10; /* 'X' + 8 hex digits + ',' */ |
1432 | count += 10; |
1433 | |
1434 | end = mem2hex (list->aexpr_list[i]->buf, end, list->aexpr_list[i]->len); |
1435 | count += 2 * list->aexpr_list[i]->len; |
1436 | } |
1437 | |
1438 | if (count != 0) |
1439 | { |
1440 | (*str_list)[ndx] = savestring (temp_buf, count); |
1441 | ndx++; |
1442 | count = 0; |
1443 | end = temp_buf; |
1444 | } |
1445 | (*str_list)[ndx] = NULL((void*)0); |
1446 | |
1447 | if (ndx == 0) |
1448 | return NULL((void*)0); |
1449 | else |
1450 | return *str_list; |
1451 | } |
1452 | |
1453 | static void |
1454 | free_actions_list_cleanup_wrapper (void *al) |
1455 | { |
1456 | free_actions_list (al); |
1457 | } |
1458 | |
1459 | static void |
1460 | free_actions_list (char **actions_list) |
1461 | { |
1462 | int ndx; |
1463 | |
1464 | if (actions_list == 0) |
1465 | return; |
1466 | |
1467 | for (ndx = 0; actions_list[ndx]; ndx++) |
1468 | xfree (actions_list[ndx]); |
1469 | |
1470 | xfree (actions_list); |
1471 | } |
1472 | |
1473 | /* render all actions into gdb protocol */ |
1474 | static void |
1475 | encode_actions (struct tracepoint *t, char ***tdp_actions, |
1476 | char ***stepping_actions) |
1477 | { |
1478 | static char tdp_buff[2048], step_buff[2048]; |
1479 | char *action_exp; |
1480 | struct expression *exp = NULL((void*)0); |
1481 | struct action_line *action; |
1482 | int i; |
1483 | struct value *tempval; |
1484 | struct collection_list *collect; |
1485 | struct cmd_list_element *cmd; |
1486 | struct agent_expr *aexpr; |
1487 | int frame_reg; |
1488 | LONGESTlong frame_offset; |
1489 | |
1490 | |
1491 | clear_collection_list (&tracepoint_list); |
1492 | clear_collection_list (&stepping_list); |
1493 | collect = &tracepoint_list; |
1494 | |
1495 | *tdp_actions = NULL((void*)0); |
1496 | *stepping_actions = NULL((void*)0); |
1497 | |
1498 | TARGET_VIRTUAL_FRAME_POINTER (t->address, &frame_reg, &frame_offset)(gdbarch_virtual_frame_pointer (current_gdbarch, t->address , &frame_reg, &frame_offset)); |
1499 | |
1500 | for (action = t->actions; action; action = action->next) |
1501 | { |
1502 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
1503 | action_exp = action->action; |
1504 | while (isspace ((int) *action_exp)) |
1505 | action_exp++; |
1506 | |
1507 | if (*action_exp == '#') /* comment line */ |
1508 | return; |
1509 | |
1510 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
1511 | if (cmd == 0) |
1512 | error ("Bad action list item: %s", action_exp); |
1513 | |
1514 | if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
1515 | { |
1516 | do |
1517 | { /* repeat over a comma-separated list */ |
1518 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
1519 | while (isspace ((int) *action_exp)) |
1520 | action_exp++; |
1521 | |
1522 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1523 | { |
1524 | for (i = 0; i < NUM_REGS(gdbarch_num_regs (current_gdbarch)); i++) |
1525 | add_register (collect, i); |
1526 | action_exp = strchr (action_exp, ','); /* more? */ |
1527 | } |
1528 | else if (0 == strncasecmp ("$arg", action_exp, 4)) |
1529 | { |
1530 | add_local_symbols (collect, |
1531 | t->address, |
1532 | frame_reg, |
1533 | frame_offset, |
1534 | 'A'); |
1535 | action_exp = strchr (action_exp, ','); /* more? */ |
1536 | } |
1537 | else if (0 == strncasecmp ("$loc", action_exp, 4)) |
1538 | { |
1539 | add_local_symbols (collect, |
1540 | t->address, |
1541 | frame_reg, |
1542 | frame_offset, |
1543 | 'L'); |
1544 | action_exp = strchr (action_exp, ','); /* more? */ |
1545 | } |
1546 | else |
1547 | { |
1548 | unsigned long addr, len; |
1549 | struct cleanup *old_chain = NULL((void*)0); |
1550 | struct cleanup *old_chain1 = NULL((void*)0); |
1551 | struct agent_reqs areqs; |
1552 | |
1553 | exp = parse_exp_1 (&action_exp, |
1554 | block_for_pc (t->address), 1); |
1555 | old_chain = make_cleanup (free_current_contents, &exp); |
1556 | |
1557 | switch (exp->elts[0].opcode) |
1558 | { |
1559 | case OP_REGISTER: |
1560 | i = exp->elts[1].longconst; |
1561 | if (info_verbose) |
1562 | printf_filtered ("OP_REGISTER: "); |
1563 | add_register (collect, i); |
1564 | break; |
1565 | |
1566 | case UNOP_MEMVAL: |
1567 | /* safe because we know it's a simple expression */ |
1568 | tempval = evaluate_expression (exp); |
1569 | addr = VALUE_ADDRESS (tempval)(tempval)->location.address + VALUE_OFFSET (tempval)(tempval)->offset; |
1570 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type))(check_typedef (exp->elts[1].type))->length; |
1571 | add_memrange (collect, -1, addr, len); |
1572 | break; |
1573 | |
1574 | case OP_VAR_VALUE: |
1575 | collect_symbol (collect, |
1576 | exp->elts[2].symbol, |
1577 | frame_reg, |
1578 | frame_offset); |
1579 | break; |
1580 | |
1581 | default: /* full-fledged expression */ |
1582 | aexpr = gen_trace_for_expr (t->address, exp); |
1583 | |
1584 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
1585 | |
1586 | ax_reqs (aexpr, &areqs); |
1587 | if (areqs.flaw != agent_flaw_none) |
1588 | error ("malformed expression"); |
1589 | |
1590 | if (areqs.min_height < 0) |
1591 | error ("gdb: Internal error: expression has min height < 0"); |
1592 | if (areqs.max_height > 20) |
1593 | error ("expression too complicated, try simplifying"); |
1594 | |
1595 | discard_cleanups (old_chain1); |
1596 | add_aexpr (collect, aexpr); |
1597 | |
1598 | /* take care of the registers */ |
1599 | if (areqs.reg_mask_len > 0) |
1600 | { |
1601 | int ndx1; |
1602 | int ndx2; |
1603 | |
1604 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) |
1605 | { |
1606 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
1607 | if (areqs.reg_mask[ndx1] != 0) |
1608 | { |
1609 | /* assume chars have 8 bits */ |
1610 | for (ndx2 = 0; ndx2 < 8; ndx2++) |
1611 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) |
1612 | /* it's used -- record it */ |
1613 | add_register (collect, ndx1 * 8 + ndx2); |
1614 | } |
1615 | } |
1616 | } |
1617 | break; |
1618 | } /* switch */ |
1619 | do_cleanups (old_chain); |
1620 | } /* do */ |
1621 | } |
1622 | while (action_exp && *action_exp++ == ','); |
1623 | } /* if */ |
1624 | else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
1625 | { |
1626 | collect = &stepping_list; |
1627 | } |
1628 | else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand)) |
1629 | { |
1630 | if (collect == &stepping_list) /* end stepping actions */ |
1631 | collect = &tracepoint_list; |
1632 | else |
1633 | break; /* end tracepoint actions */ |
1634 | } |
1635 | } /* for */ |
1636 | memrange_sortmerge (&tracepoint_list); |
1637 | memrange_sortmerge (&stepping_list); |
1638 | |
1639 | *tdp_actions = stringify_collection_list (&tracepoint_list, tdp_buff); |
1640 | *stepping_actions = stringify_collection_list (&stepping_list, step_buff); |
1641 | } |
1642 | |
1643 | static void |
1644 | add_aexpr (struct collection_list *collect, struct agent_expr *aexpr) |
1645 | { |
1646 | if (collect->next_aexpr_elt >= collect->aexpr_listsize) |
1647 | { |
1648 | collect->aexpr_list = |
1649 | xrealloc (collect->aexpr_list, |
1650 | 2 * collect->aexpr_listsize * sizeof (struct agent_expr *)); |
1651 | collect->aexpr_listsize *= 2; |
1652 | } |
1653 | collect->aexpr_list[collect->next_aexpr_elt] = aexpr; |
1654 | collect->next_aexpr_elt++; |
1655 | } |
1656 | |
1657 | static char target_buf[2048]; |
1658 | |
1659 | /* Set "transparent" memory ranges |
1660 | |
1661 | Allow trace mechanism to treat text-like sections |
1662 | (and perhaps all read-only sections) transparently, |
1663 | i.e. don't reject memory requests from these address ranges |
1664 | just because they haven't been collected. */ |
1665 | |
1666 | static void |
1667 | remote_set_transparent_ranges (void) |
1668 | { |
1669 | extern bfd *exec_bfd; |
1670 | asection *s; |
1671 | bfd_size_type size; |
1672 | bfd_vma lma; |
1673 | int anysecs = 0; |
1674 | |
1675 | if (!exec_bfd) |
1676 | return; /* no information to give. */ |
1677 | |
1678 | strcpy (target_buf, "QTro"); |
1679 | for (s = exec_bfd->sections; s; s = s->next) |
1680 | { |
1681 | char tmp1[40], tmp2[40]; |
1682 | |
1683 | if ((s->flags & SEC_LOAD0x002) == 0 || |
1684 | /* (s->flags & SEC_CODE) == 0 || */ |
1685 | (s->flags & SEC_READONLY0x010) == 0) |
1686 | continue; |
1687 | |
1688 | anysecs = 1; |
1689 | lma = s->lma; |
1690 | size = bfd_get_section_size (s)((s)->_raw_size); |
1691 | sprintf_vma (tmp1, lma)sprintf (tmp1, "%016lx", lma); |
1692 | sprintf_vma (tmp2, lma + size)sprintf (tmp2, "%016lx", lma + size); |
1693 | sprintf (target_buf + strlen (target_buf), |
1694 | ":%s,%s", tmp1, tmp2); |
1695 | } |
1696 | if (anysecs) |
1697 | { |
1698 | putpkt (target_buf); |
1699 | getpkt (target_buf, sizeof (target_buf), 0); |
1700 | } |
1701 | } |
1702 | |
1703 | /* tstart command: |
1704 | |
1705 | Tell target to clear any previous trace experiment. |
1706 | Walk the list of tracepoints, and send them (and their actions) |
1707 | to the target. If no errors, |
1708 | Tell target to start a new trace experiment. */ |
1709 | |
1710 | static void |
1711 | trace_start_command (char *args, int from_tty) |
1712 | { /* STUB_COMM MOSTLY_IMPLEMENTED */ |
1713 | struct tracepoint *t; |
1714 | char buf[2048]; |
1715 | char **tdp_actions; |
1716 | char **stepping_actions; |
1717 | int ndx; |
1718 | struct cleanup *old_chain = NULL((void*)0); |
1719 | |
1720 | dont_repeat (); /* like "run", dangerous to repeat accidentally */ |
1721 | |
1722 | if (target_is_remote ()) |
1723 | { |
1724 | putpkt ("QTinit"); |
1725 | remote_get_noisy_reply (target_buf, sizeof (target_buf)); |
1726 | if (strcmp (target_buf, "OK")) |
1727 | error ("Target does not support this command."); |
1728 | |
1729 | ALL_TRACEPOINTS (t)for (t = tracepoint_chain; t; t = t->next) |
1730 | { |
1731 | char tmp[40]; |
1732 | |
1733 | sprintf_vma (tmp, t->address)sprintf (tmp, "%016lx", t->address); |
1734 | sprintf (buf, "QTDP:%x:%s:%c:%lx:%x", t->number, tmp, /* address */ |
1735 | t->enabled_p ? 'E' : 'D', |
1736 | t->step_count, t->pass_count); |
1737 | |
1738 | if (t->actions) |
1739 | strcat (buf, "-"); |
1740 | putpkt (buf); |
1741 | remote_get_noisy_reply (target_buf, sizeof (target_buf)); |
1742 | if (strcmp (target_buf, "OK")) |
1743 | error ("Target does not support tracepoints."); |
1744 | |
1745 | if (t->actions) |
1746 | { |
1747 | encode_actions (t, &tdp_actions, &stepping_actions); |
1748 | old_chain = make_cleanup (free_actions_list_cleanup_wrapper, |
1749 | tdp_actions); |
1750 | (void) make_cleanup (free_actions_list_cleanup_wrapper, |
1751 | stepping_actions); |
1752 | |
1753 | /* do_single_steps (t); */ |
1754 | if (tdp_actions) |
1755 | { |
1756 | for (ndx = 0; tdp_actions[ndx]; ndx++) |
1757 | { |
1758 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
1759 | sprintf (buf, "QTDP:-%x:%s:%s%c", |
1760 | t->number, tmp, /* address */ |
1761 | tdp_actions[ndx], |
1762 | ((tdp_actions[ndx + 1] || stepping_actions) |
1763 | ? '-' : 0)); |
1764 | putpkt (buf); |
1765 | remote_get_noisy_reply (target_buf, sizeof (target_buf)); |
1766 | if (strcmp (target_buf, "OK")) |
1767 | error ("Error on target while setting tracepoints."); |
1768 | } |
1769 | } |
1770 | if (stepping_actions) |
1771 | { |
1772 | for (ndx = 0; stepping_actions[ndx]; ndx++) |
1773 | { |
1774 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
1775 | sprintf (buf, "QTDP:-%x:%s:%s%s%s", |
1776 | t->number, tmp, /* address */ |
1777 | ((ndx == 0) ? "S" : ""), |
1778 | stepping_actions[ndx], |
1779 | (stepping_actions[ndx + 1] ? "-" : "")); |
1780 | putpkt (buf); |
1781 | remote_get_noisy_reply (target_buf, sizeof (target_buf)); |
1782 | if (strcmp (target_buf, "OK")) |
1783 | error ("Error on target while setting tracepoints."); |
1784 | } |
1785 | } |
1786 | |
1787 | do_cleanups (old_chain); |
1788 | } |
1789 | } |
1790 | /* Tell target to treat text-like sections as transparent */ |
1791 | remote_set_transparent_ranges (); |
1792 | /* Now insert traps and begin collecting data */ |
1793 | putpkt ("QTStart"); |
1794 | remote_get_noisy_reply (target_buf, sizeof (target_buf)); |
1795 | if (strcmp (target_buf, "OK")) |
1796 | error ("Bogus reply from target: %s", target_buf); |
1797 | set_traceframe_num (-1); /* all old traceframes invalidated */ |
1798 | set_tracepoint_num (-1); |
1799 | set_traceframe_context (-1); |
1800 | trace_running_p = 1; |
1801 | if (deprecated_trace_start_stop_hook) |
1802 | deprecated_trace_start_stop_hook (1, from_tty); |
1803 | |
1804 | } |
1805 | else |
1806 | error ("Trace can only be run on remote targets."); |
1807 | } |
1808 | |
1809 | /* tstop command */ |
1810 | static void |
1811 | trace_stop_command (char *args, int from_tty) |
1812 | { /* STUB_COMM IS_IMPLEMENTED */ |
1813 | if (target_is_remote ()) |
1814 | { |
1815 | putpkt ("QTStop"); |
1816 | remote_get_noisy_reply (target_buf, sizeof (target_buf)); |
1817 | if (strcmp (target_buf, "OK")) |
1818 | error ("Bogus reply from target: %s", target_buf); |
1819 | trace_running_p = 0; |
1820 | if (deprecated_trace_start_stop_hook) |
1821 | deprecated_trace_start_stop_hook (0, from_tty); |
1822 | } |
1823 | else |
1824 | error ("Trace can only be run on remote targets."); |
1825 | } |
1826 | |
1827 | unsigned long trace_running_p; |
1828 | |
1829 | /* tstatus command */ |
1830 | static void |
1831 | trace_status_command (char *args, int from_tty) |
1832 | { /* STUB_COMM IS_IMPLEMENTED */ |
1833 | if (target_is_remote ()) |
1834 | { |
1835 | putpkt ("qTStatus"); |
1836 | remote_get_noisy_reply (target_buf, sizeof (target_buf)); |
1837 | |
1838 | if (target_buf[0] != 'T' || |
1839 | (target_buf[1] != '0' && target_buf[1] != '1')) |
1840 | error ("Bogus reply from target: %s", target_buf); |
1841 | |
1842 | /* exported for use by the GUI */ |
1843 | trace_running_p = (target_buf[1] == '1'); |
1844 | } |
1845 | else |
1846 | error ("Trace can only be run on remote targets."); |
1847 | } |
1848 | |
1849 | /* Worker function for the various flavors of the tfind command */ |
1850 | static void |
1851 | finish_tfind_command (char *msg, |
1852 | long sizeof_msg, |
1853 | int from_tty) |
1854 | { |
1855 | int target_frameno = -1, target_tracept = -1; |
1856 | CORE_ADDR old_frame_addr; |
1857 | struct symbol *old_func; |
1858 | char *reply; |
1859 | |
1860 | old_frame_addr = get_frame_base (get_current_frame ()); |
1861 | old_func = find_pc_function (read_pc ()); |
1862 | |
1863 | putpkt (msg); |
1864 | reply = remote_get_noisy_reply (msg, sizeof_msg); |
1865 | |
1866 | while (reply && *reply) |
1867 | switch (*reply) |
1868 | { |
1869 | case 'F': |
1870 | if ((target_frameno = (int) strtol (++reply, &reply, 16)) == -1) |
1871 | { |
1872 | /* A request for a non-existant trace frame has failed. |
1873 | Our response will be different, depending on FROM_TTY: |
1874 | |
1875 | If FROM_TTY is true, meaning that this command was |
1876 | typed interactively by the user, then give an error |
1877 | and DO NOT change the state of traceframe_number etc. |
1878 | |
1879 | However if FROM_TTY is false, meaning that we're either |
1880 | in a script, a loop, or a user-defined command, then |
1881 | DON'T give an error, but DO change the state of |
1882 | traceframe_number etc. to invalid. |
1883 | |
1884 | The rationalle is that if you typed the command, you |
1885 | might just have committed a typo or something, and you'd |
1886 | like to NOT lose your current debugging state. However |
1887 | if you're in a user-defined command or especially in a |
1888 | loop, then you need a way to detect that the command |
1889 | failed WITHOUT aborting. This allows you to write |
1890 | scripts that search thru the trace buffer until the end, |
1891 | and then continue on to do something else. */ |
1892 | |
1893 | if (from_tty) |
1894 | error ("Target failed to find requested trace frame."); |
1895 | else |
1896 | { |
1897 | if (info_verbose) |
1898 | printf_filtered ("End of trace buffer.\n"); |
1899 | /* The following will not recurse, since it's special-cased */ |
1900 | trace_find_command ("-1", from_tty); |
1901 | reply = NULL((void*)0); /* break out of loop, |
1902 | (avoid recursive nonsense) */ |
1903 | } |
1904 | } |
1905 | break; |
1906 | case 'T': |
1907 | if ((target_tracept = (int) strtol (++reply, &reply, 16)) == -1) |
1908 | error ("Target failed to find requested trace frame."); |
1909 | break; |
1910 | case 'O': /* "OK"? */ |
1911 | if (reply[1] == 'K' && reply[2] == '\0') |
1912 | reply += 2; |
1913 | else |
1914 | error ("Bogus reply from target: %s", reply); |
1915 | break; |
1916 | default: |
1917 | error ("Bogus reply from target: %s", reply); |
1918 | } |
1919 | |
1920 | flush_cached_frames (); |
1921 | registers_changed (); |
1922 | select_frame (get_current_frame ()); |
1923 | set_traceframe_num (target_frameno); |
1924 | set_tracepoint_num (target_tracept); |
1925 | if (target_frameno == -1) |
1926 | set_traceframe_context (-1); |
1927 | else |
1928 | set_traceframe_context (read_pc ()); |
1929 | |
1930 | if (from_tty) |
1931 | { |
1932 | enum print_what print_what; |
1933 | |
1934 | /* NOTE: in immitation of the step command, try to determine |
1935 | whether we have made a transition from one function to another. |
1936 | If so, we'll print the "stack frame" (ie. the new function and |
1937 | it's arguments) -- otherwise we'll just show the new source line. |
1938 | |
1939 | This determination is made by checking (1) whether the current |
1940 | function has changed, and (2) whether the current FP has changed. |
1941 | Hack: if the FP wasn't collected, either at the current or the |
1942 | previous frame, assume that the FP has NOT changed. */ |
1943 | |
1944 | if (old_func == find_pc_function (read_pc ()) && |
1945 | (old_frame_addr == 0 || |
1946 | get_frame_base (get_current_frame ()) == 0 || |
1947 | old_frame_addr == get_frame_base (get_current_frame ()))) |
1948 | print_what = SRC_LINE; |
1949 | else |
1950 | print_what = SRC_AND_LOC; |
1951 | |
1952 | print_stack_frame (get_selected_frame (), 1, print_what); |
1953 | do_displays (); |
1954 | } |
1955 | } |
1956 | |
1957 | /* trace_find_command takes a trace frame number n, |
1958 | sends "QTFrame:<n>" to the target, |
1959 | and accepts a reply that may contain several optional pieces |
1960 | of information: a frame number, a tracepoint number, and an |
1961 | indication of whether this is a trap frame or a stepping frame. |
1962 | |
1963 | The minimal response is just "OK" (which indicates that the |
1964 | target does not give us a frame number or a tracepoint number). |
1965 | Instead of that, the target may send us a string containing |
1966 | any combination of: |
1967 | F<hexnum> (gives the selected frame number) |
1968 | T<hexnum> (gives the selected tracepoint number) |
1969 | */ |
1970 | |
1971 | /* tfind command */ |
1972 | static void |
1973 | trace_find_command (char *args, int from_tty) |
1974 | { /* STUB_COMM PART_IMPLEMENTED */ |
1975 | /* this should only be called with a numeric argument */ |
1976 | int frameno = -1; |
1977 | |
1978 | if (target_is_remote ()) |
1979 | { |
1980 | if (deprecated_trace_find_hook) |
1981 | deprecated_trace_find_hook (args, from_tty); |
1982 | |
1983 | if (args == 0 || *args == 0) |
1984 | { /* TFIND with no args means find NEXT trace frame. */ |
1985 | if (traceframe_number == -1) |
1986 | frameno = 0; /* "next" is first one */ |
1987 | else |
1988 | frameno = traceframe_number + 1; |
1989 | } |
1990 | else if (0 == strcmp (args, "-")) |
1991 | { |
1992 | if (traceframe_number == -1) |
1993 | error ("not debugging trace buffer"); |
1994 | else if (from_tty && traceframe_number == 0) |
1995 | error ("already at start of trace buffer"); |
1996 | |
1997 | frameno = traceframe_number - 1; |
1998 | } |
1999 | else |
2000 | frameno = parse_and_eval_long (args); |
2001 | |
2002 | if (frameno < -1) |
2003 | error ("invalid input (%d is less than zero)", frameno); |
2004 | |
2005 | sprintf (target_buf, "QTFrame:%x", frameno); |
2006 | finish_tfind_command (target_buf, sizeof (target_buf), from_tty); |
2007 | } |
2008 | else |
2009 | error ("Trace can only be run on remote targets."); |
2010 | } |
2011 | |
2012 | /* tfind end */ |
2013 | static void |
2014 | trace_find_end_command (char *args, int from_tty) |
2015 | { |
2016 | trace_find_command ("-1", from_tty); |
2017 | } |
2018 | |
2019 | /* tfind none */ |
2020 | static void |
2021 | trace_find_none_command (char *args, int from_tty) |
2022 | { |
2023 | trace_find_command ("-1", from_tty); |
2024 | } |
2025 | |
2026 | /* tfind start */ |
2027 | static void |
2028 | trace_find_start_command (char *args, int from_tty) |
2029 | { |
2030 | trace_find_command ("0", from_tty); |
2031 | } |
2032 | |
2033 | /* tfind pc command */ |
2034 | static void |
2035 | trace_find_pc_command (char *args, int from_tty) |
2036 | { /* STUB_COMM PART_IMPLEMENTED */ |
2037 | CORE_ADDR pc; |
2038 | char tmp[40]; |
2039 | |
2040 | if (target_is_remote ()) |
2041 | { |
2042 | if (args == 0 || *args == 0) |
2043 | pc = read_pc (); /* default is current pc */ |
2044 | else |
2045 | pc = parse_and_eval_address (args); |
2046 | |
2047 | sprintf_vma (tmp, pc)sprintf (tmp, "%016lx", pc); |
2048 | sprintf (target_buf, "QTFrame:pc:%s", tmp); |
2049 | finish_tfind_command (target_buf, sizeof (target_buf), from_tty); |
2050 | } |
2051 | else |
2052 | error ("Trace can only be run on remote targets."); |
2053 | } |
2054 | |
2055 | /* tfind tracepoint command */ |
2056 | static void |
2057 | trace_find_tracepoint_command (char *args, int from_tty) |
2058 | { /* STUB_COMM PART_IMPLEMENTED */ |
2059 | int tdp; |
2060 | |
2061 | if (target_is_remote ()) |
2062 | { |
2063 | if (args == 0 || *args == 0) |
2064 | { |
2065 | if (tracepoint_number == -1) |
2066 | error ("No current tracepoint -- please supply an argument."); |
2067 | else |
2068 | tdp = tracepoint_number; /* default is current TDP */ |
2069 | } |
2070 | else |
2071 | tdp = parse_and_eval_long (args); |
2072 | |
2073 | sprintf (target_buf, "QTFrame:tdp:%x", tdp); |
2074 | finish_tfind_command (target_buf, sizeof (target_buf), from_tty); |
2075 | } |
2076 | else |
2077 | error ("Trace can only be run on remote targets."); |
2078 | } |
2079 | |
2080 | /* TFIND LINE command: |
2081 | |
2082 | This command will take a sourceline for argument, just like BREAK |
2083 | or TRACE (ie. anything that "decode_line_1" can handle). |
2084 | |
2085 | With no argument, this command will find the next trace frame |
2086 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ |
2087 | |
2088 | static void |
2089 | trace_find_line_command (char *args, int from_tty) |
2090 | { /* STUB_COMM PART_IMPLEMENTED */ |
2091 | static CORE_ADDR start_pc, end_pc; |
2092 | struct symtabs_and_lines sals; |
2093 | struct symtab_and_line sal; |
2094 | struct cleanup *old_chain; |
2095 | char startpc_str[40], endpc_str[40]; |
2096 | |
2097 | if (target_is_remote ()) |
2098 | { |
2099 | if (args == 0 || *args == 0) |
2100 | { |
2101 | sal = find_pc_line (get_frame_pc (get_current_frame ()), 0); |
2102 | sals.nelts = 1; |
2103 | sals.sals = (struct symtab_and_line *) |
2104 | xmalloc (sizeof (struct symtab_and_line)); |
2105 | sals.sals[0] = sal; |
2106 | } |
2107 | else |
2108 | { |
2109 | sals = decode_line_spec (args, 1); |
2110 | sal = sals.sals[0]; |
2111 | } |
2112 | |
2113 | old_chain = make_cleanup (xfree, sals.sals); |
2114 | if (sal.symtab == 0) |
2115 | { |
2116 | printf_filtered ("TFIND: No line number information available"); |
2117 | if (sal.pc != 0) |
2118 | { |
2119 | /* This is useful for "info line *0x7f34". If we can't tell the |
2120 | user about a source line, at least let them have the symbolic |
2121 | address. */ |
2122 | printf_filtered (" for address "); |
2123 | wrap_here (" "); |
2124 | print_address (sal.pc, gdb_stdout); |
2125 | printf_filtered (";\n -- will attempt to find by PC. \n"); |
2126 | } |
2127 | else |
2128 | { |
2129 | printf_filtered (".\n"); |
2130 | return; /* no line, no PC; what can we do? */ |
2131 | } |
2132 | } |
2133 | else if (sal.line > 0 |
2134 | && find_line_pc_range (sal, &start_pc, &end_pc)) |
2135 | { |
2136 | if (start_pc == end_pc) |
2137 | { |
2138 | printf_filtered ("Line %d of \"%s\"", |
2139 | sal.line, sal.symtab->filename); |
2140 | wrap_here (" "); |
2141 | printf_filtered (" is at address "); |
2142 | print_address (start_pc, gdb_stdout); |
2143 | wrap_here (" "); |
2144 | printf_filtered (" but contains no code.\n"); |
2145 | sal = find_pc_line (start_pc, 0); |
2146 | if (sal.line > 0 && |
2147 | find_line_pc_range (sal, &start_pc, &end_pc) && |
2148 | start_pc != end_pc) |
2149 | printf_filtered ("Attempting to find line %d instead.\n", |
2150 | sal.line); |
2151 | else |
2152 | error ("Cannot find a good line."); |
2153 | } |
2154 | } |
2155 | else |
2156 | /* Is there any case in which we get here, and have an address |
2157 | which the user would want to see? If we have debugging symbols |
2158 | and no line numbers? */ |
2159 | error ("Line number %d is out of range for \"%s\".\n", |
2160 | sal.line, sal.symtab->filename); |
2161 | |
2162 | sprintf_vma (startpc_str, start_pc)sprintf (startpc_str, "%016lx", start_pc); |
2163 | sprintf_vma (endpc_str, end_pc - 1)sprintf (endpc_str, "%016lx", end_pc - 1); |
2164 | if (args && *args) /* find within range of stated line */ |
2165 | sprintf (target_buf, "QTFrame:range:%s:%s", startpc_str, endpc_str); |
2166 | else /* find OUTSIDE OF range of CURRENT line */ |
2167 | sprintf (target_buf, "QTFrame:outside:%s:%s", startpc_str, endpc_str); |
2168 | finish_tfind_command (target_buf, sizeof (target_buf), from_tty); |
2169 | do_cleanups (old_chain); |
2170 | } |
2171 | else |
2172 | error ("Trace can only be run on remote targets."); |
2173 | } |
2174 | |
2175 | /* tfind range command */ |
2176 | static void |
2177 | trace_find_range_command (char *args, int from_tty) |
2178 | { |
2179 | static CORE_ADDR start, stop; |
2180 | char start_str[40], stop_str[40]; |
2181 | char *tmp; |
2182 | |
2183 | if (target_is_remote ()) |
2184 | { |
2185 | if (args == 0 || *args == 0) |
2186 | { /* XXX FIXME: what should default behavior be? */ |
2187 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); |
2188 | return; |
2189 | } |
2190 | |
2191 | if (0 != (tmp = strchr (args, ','))) |
2192 | { |
2193 | *tmp++ = '\0'; /* terminate start address */ |
2194 | while (isspace ((int) *tmp)) |
2195 | tmp++; |
2196 | start = parse_and_eval_address (args); |
2197 | stop = parse_and_eval_address (tmp); |
2198 | } |
2199 | else |
2200 | { /* no explicit end address? */ |
2201 | start = parse_and_eval_address (args); |
2202 | stop = start + 1; /* ??? */ |
2203 | } |
2204 | |
2205 | sprintf_vma (start_str, start)sprintf (start_str, "%016lx", start); |
2206 | sprintf_vma (stop_str, stop)sprintf (stop_str, "%016lx", stop); |
2207 | sprintf (target_buf, "QTFrame:range:%s:%s", start_str, stop_str); |
2208 | finish_tfind_command (target_buf, sizeof (target_buf), from_tty); |
2209 | } |
2210 | else |
2211 | error ("Trace can only be run on remote targets."); |
2212 | } |
2213 | |
2214 | /* tfind outside command */ |
2215 | static void |
2216 | trace_find_outside_command (char *args, int from_tty) |
2217 | { |
2218 | CORE_ADDR start, stop; |
2219 | char start_str[40], stop_str[40]; |
2220 | char *tmp; |
2221 | |
2222 | if (target_is_remote ()) |
2223 | { |
2224 | if (args == 0 || *args == 0) |
2225 | { /* XXX FIXME: what should default behavior be? */ |
2226 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); |
2227 | return; |
2228 | } |
2229 | |
2230 | if (0 != (tmp = strchr (args, ','))) |
2231 | { |
2232 | *tmp++ = '\0'; /* terminate start address */ |
2233 | while (isspace ((int) *tmp)) |
2234 | tmp++; |
2235 | start = parse_and_eval_address (args); |
2236 | stop = parse_and_eval_address (tmp); |
2237 | } |
2238 | else |
2239 | { /* no explicit end address? */ |
2240 | start = parse_and_eval_address (args); |
2241 | stop = start + 1; /* ??? */ |
2242 | } |
2243 | |
2244 | sprintf_vma (start_str, start)sprintf (start_str, "%016lx", start); |
2245 | sprintf_vma (stop_str, stop)sprintf (stop_str, "%016lx", stop); |
2246 | sprintf (target_buf, "QTFrame:outside:%s:%s", start_str, stop_str); |
2247 | finish_tfind_command (target_buf, sizeof (target_buf), from_tty); |
2248 | } |
2249 | else |
2250 | error ("Trace can only be run on remote targets."); |
2251 | } |
2252 | |
2253 | /* save-tracepoints command */ |
2254 | static void |
2255 | tracepoint_save_command (char *args, int from_tty) |
2256 | { |
2257 | struct tracepoint *tp; |
2258 | struct action_line *line; |
2259 | FILE *fp; |
2260 | char *i1 = " ", *i2 = " "; |
2261 | char *indent, *actionline, *pathname; |
2262 | char tmp[40]; |
2263 | |
2264 | if (args == 0 || *args == 0) |
2265 | error ("Argument required (file name in which to save tracepoints"); |
2266 | |
2267 | if (tracepoint_chain == 0) |
2268 | { |
2269 | warning ("save-tracepoints: no tracepoints to save.\n"); |
2270 | return; |
2271 | } |
2272 | |
2273 | pathname = tilde_expand (args); |
2274 | if (!(fp = fopen (pathname, "w"))) |
2275 | error ("Unable to open file '%s' for saving tracepoints (%s)", |
2276 | args, safe_strerror (errno(*__errno()))); |
2277 | xfree (pathname); |
2278 | |
2279 | ALL_TRACEPOINTS (tp)for (tp = tracepoint_chain; tp; tp = tp->next) |
2280 | { |
2281 | if (tp->addr_string) |
2282 | fprintf (fp, "trace %s\n", tp->addr_string); |
2283 | else |
2284 | { |
2285 | sprintf_vma (tmp, tp->address)sprintf (tmp, "%016lx", tp->address); |
2286 | fprintf (fp, "trace *0x%s\n", tmp); |
2287 | } |
2288 | |
2289 | if (tp->pass_count) |
2290 | fprintf (fp, " passcount %d\n", tp->pass_count); |
2291 | |
2292 | if (tp->actions) |
2293 | { |
2294 | fprintf (fp, " actions\n"); |
2295 | indent = i1; |
2296 | for (line = tp->actions; line; line = line->next) |
2297 | { |
2298 | struct cmd_list_element *cmd; |
2299 | |
2300 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
2301 | actionline = line->action; |
2302 | while (isspace ((int) *actionline)) |
2303 | actionline++; |
2304 | |
2305 | fprintf (fp, "%s%s\n", indent, actionline); |
2306 | if (*actionline != '#') /* skip for comment lines */ |
2307 | { |
2308 | cmd = lookup_cmd (&actionline, cmdlist, "", -1, 1); |
2309 | if (cmd == 0) |
2310 | error ("Bad action list item: %s", actionline); |
2311 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
2312 | indent = i2; |
2313 | else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand)) |
2314 | indent = i1; |
2315 | } |
2316 | } |
2317 | } |
2318 | } |
2319 | fclose (fp); |
2320 | if (from_tty) |
2321 | printf_filtered ("Tracepoints saved to file '%s'.\n", args); |
2322 | return; |
2323 | } |
2324 | |
2325 | /* info scope command: list the locals for a scope. */ |
2326 | static void |
2327 | scope_info (char *args, int from_tty) |
2328 | { |
2329 | struct symtabs_and_lines sals; |
2330 | struct symbol *sym; |
2331 | struct minimal_symbol *msym; |
2332 | struct block *block; |
2333 | char **canonical, *symname, *save_args = args; |
2334 | struct dict_iterator iter; |
2335 | int j, count = 0; |
2336 | |
2337 | if (args == 0 || *args == 0) |
2338 | error ("requires an argument (function, line or *addr) to define a scope"); |
2339 | |
2340 | sals = decode_line_1 (&args, 1, NULL((void*)0), 0, &canonical, NULL((void*)0)); |
2341 | if (sals.nelts == 0) |
2342 | return; /* presumably decode_line_1 has already warned */ |
2343 | |
2344 | /* Resolve line numbers to PC */ |
2345 | resolve_sal_pc (&sals.sals[0]); |
2346 | block = block_for_pc (sals.sals[0].pc); |
2347 | |
2348 | while (block != 0) |
2349 | { |
2350 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
2351 | ALL_BLOCK_SYMBOLS (block, iter, sym)for ((sym) = dict_iterator_first (((block)->dict), &(iter )); (sym); (sym) = dict_iterator_next (&(iter))) |
2352 | { |
2353 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
2354 | if (count == 0) |
2355 | printf_filtered ("Scope for %s:\n", save_args); |
2356 | count++; |
2357 | |
2358 | symname = DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name; |
2359 | if (symname == NULL((void*)0) || *symname == '\0') |
2360 | continue; /* probably botched, certainly useless */ |
2361 | |
2362 | printf_filtered ("Symbol %s is ", symname); |
2363 | switch (SYMBOL_CLASS (sym)(sym)->aclass) |
2364 | { |
2365 | default: |
2366 | case LOC_UNDEF: /* messed up symbol? */ |
2367 | printf_filtered ("a bogus symbol, class %d.\n", |
2368 | SYMBOL_CLASS (sym)(sym)->aclass); |
2369 | count--; /* don't count this one */ |
2370 | continue; |
2371 | case LOC_CONST: |
2372 | printf_filtered ("a constant with value %ld (0x%lx)", |
2373 | SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue, SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue); |
2374 | break; |
2375 | case LOC_CONST_BYTES: |
2376 | printf_filtered ("constant bytes: "); |
2377 | if (SYMBOL_TYPE (sym)(sym)->type) |
2378 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym))((sym)->type)->length; j++) |
2379 | fprintf_filtered (gdb_stdout, " %02x", |
2380 | (unsigned) SYMBOL_VALUE_BYTES (sym)(sym)->ginfo.value.bytes[j]); |
2381 | break; |
2382 | case LOC_STATIC: |
2383 | printf_filtered ("in static storage at address "); |
2384 | print_address_numeric (SYMBOL_VALUE_ADDRESS (sym)(sym)->ginfo.value.address, |
2385 | 1, gdb_stdout); |
2386 | break; |
2387 | case LOC_REGISTER: |
2388 | printf_filtered ("a local variable in register $%s", |
2389 | REGISTER_NAME (SYMBOL_VALUE (sym))(gdbarch_register_name (current_gdbarch, (sym)->ginfo.value .ivalue))); |
2390 | break; |
2391 | case LOC_ARG: |
2392 | case LOC_LOCAL_ARG: |
2393 | printf_filtered ("an argument at stack/frame offset %ld", |
2394 | SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue); |
2395 | break; |
2396 | case LOC_LOCAL: |
2397 | printf_filtered ("a local variable at frame offset %ld", |
2398 | SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue); |
2399 | break; |
2400 | case LOC_REF_ARG: |
2401 | printf_filtered ("a reference argument at offset %ld", |
2402 | SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue); |
2403 | break; |
2404 | case LOC_REGPARM: |
2405 | printf_filtered ("an argument in register $%s", |
2406 | REGISTER_NAME (SYMBOL_VALUE (sym))(gdbarch_register_name (current_gdbarch, (sym)->ginfo.value .ivalue))); |
2407 | break; |
2408 | case LOC_REGPARM_ADDR: |
2409 | printf_filtered ("the address of an argument, in register $%s", |
2410 | REGISTER_NAME (SYMBOL_VALUE (sym))(gdbarch_register_name (current_gdbarch, (sym)->ginfo.value .ivalue))); |
2411 | break; |
2412 | case LOC_TYPEDEF: |
2413 | printf_filtered ("a typedef.\n"); |
2414 | continue; |
2415 | case LOC_LABEL: |
2416 | printf_filtered ("a label at address "); |
2417 | print_address_numeric (SYMBOL_VALUE_ADDRESS (sym)(sym)->ginfo.value.address, |
2418 | 1, gdb_stdout); |
2419 | break; |
2420 | case LOC_BLOCK: |
2421 | printf_filtered ("a function at address "); |
2422 | print_address_numeric (BLOCK_START (SYMBOL_BLOCK_VALUE (sym))((sym)->ginfo.value.block)->startaddr, |
2423 | 1, gdb_stdout); |
2424 | break; |
2425 | case LOC_BASEREG: |
2426 | printf_filtered ("a variable at offset %ld from register $%s", |
2427 | SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue, |
2428 | REGISTER_NAME (SYMBOL_BASEREG (sym))(gdbarch_register_name (current_gdbarch, (sym)->aux_value. basereg))); |
2429 | break; |
2430 | case LOC_BASEREG_ARG: |
2431 | printf_filtered ("an argument at offset %ld from register $%s", |
2432 | SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue, |
2433 | REGISTER_NAME (SYMBOL_BASEREG (sym))(gdbarch_register_name (current_gdbarch, (sym)->aux_value. basereg))); |
2434 | break; |
2435 | case LOC_UNRESOLVED: |
2436 | msym = lookup_minimal_symbol (DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name, |
2437 | NULL((void*)0), NULL((void*)0)); |
2438 | if (msym == NULL((void*)0)) |
2439 | printf_filtered ("Unresolved Static"); |
2440 | else |
2441 | { |
2442 | printf_filtered ("static storage at address "); |
2443 | print_address_numeric (SYMBOL_VALUE_ADDRESS (msym)(msym)->ginfo.value.address, 1, |
2444 | gdb_stdout); |
2445 | } |
2446 | break; |
2447 | case LOC_OPTIMIZED_OUT: |
2448 | printf_filtered ("optimized out.\n"); |
2449 | continue; |
2450 | case LOC_HP_THREAD_LOCAL_STATIC: |
2451 | printf_filtered ("HP thread local static "); |
2452 | break; |
2453 | case LOC_INDIRECT: |
2454 | printf_filtered ("extern (local indirect) at address "); |
2455 | print_address_numeric (SYMBOL_VALUE_ADDRESS (sym)(sym)->ginfo.value.address, |
2456 | 1, gdb_stdout); |
2457 | break; |
2458 | case LOC_COMPUTED: |
2459 | case LOC_COMPUTED_ARG: |
2460 | SYMBOL_OPS (sym)(sym)->ops->describe_location (sym, gdb_stdout); |
2461 | break; |
2462 | } |
2463 | if (SYMBOL_TYPE (sym)(sym)->type) |
2464 | printf_filtered (", length %d.\n", |
2465 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))(check_typedef ((sym)->type))->length); |
2466 | } |
2467 | if (BLOCK_FUNCTION (block)(block)->function) |
2468 | break; |
2469 | else |
2470 | block = BLOCK_SUPERBLOCK (block)(block)->superblock; |
2471 | } |
2472 | if (count <= 0) |
2473 | printf_filtered ("Scope for %s contains no locals or arguments.\n", |
2474 | save_args); |
2475 | } |
2476 | |
2477 | /* worker function (cleanup) */ |
2478 | static void |
2479 | replace_comma (void *data) |
2480 | { |
2481 | char *comma = data; |
2482 | *comma = ','; |
2483 | } |
2484 | |
2485 | /* tdump command */ |
2486 | static void |
2487 | trace_dump_command (char *args, int from_tty) |
2488 | { |
2489 | struct tracepoint *t; |
2490 | struct action_line *action; |
2491 | char *action_exp, *next_comma; |
2492 | struct cleanup *old_cleanups; |
2493 | int stepping_actions = 0; |
2494 | int stepping_frame = 0; |
2495 | |
2496 | if (!target_is_remote ()) |
2497 | { |
2498 | error ("Trace can only be run on remote targets."); |
2499 | return; |
2500 | } |
2501 | |
2502 | if (tracepoint_number == -1) |
2503 | { |
2504 | warning ("No current trace frame."); |
2505 | return; |
2506 | } |
2507 | |
2508 | ALL_TRACEPOINTS (t)for (t = tracepoint_chain; t; t = t->next) |
2509 | if (t->number == tracepoint_number) |
2510 | break; |
2511 | |
2512 | if (t == NULL((void*)0)) |
2513 | error ("No known tracepoint matches 'current' tracepoint #%d.", |
2514 | tracepoint_number); |
2515 | |
2516 | old_cleanups = make_cleanup (null_cleanup, NULL((void*)0)); |
2517 | |
2518 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", |
2519 | tracepoint_number, traceframe_number); |
2520 | |
2521 | /* The current frame is a trap frame if the frame PC is equal |
2522 | to the tracepoint PC. If not, then the current frame was |
2523 | collected during single-stepping. */ |
2524 | |
2525 | stepping_frame = (t->address != (read_pc () - DECR_PC_AFTER_BREAK(gdbarch_decr_pc_after_break (current_gdbarch)))); |
2526 | |
2527 | for (action = t->actions; action; action = action->next) |
2528 | { |
2529 | struct cmd_list_element *cmd; |
2530 | |
2531 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
2532 | action_exp = action->action; |
2533 | while (isspace ((int) *action_exp)) |
2534 | action_exp++; |
2535 | |
2536 | /* The collection actions to be done while stepping are |
2537 | bracketed by the commands "while-stepping" and "end". */ |
2538 | |
2539 | if (*action_exp == '#') /* comment line */ |
2540 | continue; |
2541 | |
2542 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
2543 | if (cmd == 0) |
2544 | error ("Bad action list item: %s", action_exp); |
2545 | |
2546 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
2547 | stepping_actions = 1; |
2548 | else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand)) |
2549 | stepping_actions = 0; |
2550 | else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
2551 | { |
2552 | /* Display the collected data. |
2553 | For the trap frame, display only what was collected at the trap. |
2554 | Likewise for stepping frames, display only what was collected |
2555 | while stepping. This means that the two boolean variables, |
2556 | STEPPING_FRAME and STEPPING_ACTIONS should be equal. */ |
2557 | if (stepping_frame == stepping_actions) |
2558 | { |
2559 | do |
2560 | { /* repeat over a comma-separated list */ |
2561 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* allow user to bail out with ^C */ |
2562 | if (*action_exp == ',') |
2563 | action_exp++; |
2564 | while (isspace ((int) *action_exp)) |
2565 | action_exp++; |
2566 | |
2567 | next_comma = strchr (action_exp, ','); |
2568 | |
2569 | if (0 == strncasecmp (action_exp, "$reg", 4)) |
2570 | registers_info (NULL((void*)0), from_tty); |
2571 | else if (0 == strncasecmp (action_exp, "$loc", 4)) |
2572 | locals_info (NULL((void*)0), from_tty); |
2573 | else if (0 == strncasecmp (action_exp, "$arg", 4)) |
2574 | args_info (NULL((void*)0), from_tty); |
2575 | else |
2576 | { /* variable */ |
2577 | if (next_comma) |
2578 | { |
2579 | make_cleanup (replace_comma, next_comma); |
2580 | *next_comma = '\0'; |
2581 | } |
2582 | printf_filtered ("%s = ", action_exp); |
2583 | output_command (action_exp, from_tty); |
2584 | printf_filtered ("\n"); |
2585 | } |
2586 | if (next_comma) |
2587 | *next_comma = ','; |
2588 | action_exp = next_comma; |
2589 | } |
2590 | while (action_exp && *action_exp == ','); |
2591 | } |
2592 | } |
2593 | } |
2594 | discard_cleanups (old_cleanups); |
2595 | } |
2596 | |
2597 | /* Convert the memory pointed to by mem into hex, placing result in buf. |
2598 | * Return a pointer to the last char put in buf (null) |
2599 | * "stolen" from sparc-stub.c |
2600 | */ |
2601 | |
2602 | static const char hexchars[] = "0123456789abcdef"; |
2603 | |
2604 | static unsigned char * |
2605 | mem2hex (unsigned char *mem, unsigned char *buf, int count) |
2606 | { |
2607 | unsigned char ch; |
2608 | |
2609 | while (count-- > 0) |
2610 | { |
2611 | ch = *mem++; |
2612 | |
2613 | *buf++ = hexchars[ch >> 4]; |
2614 | *buf++ = hexchars[ch & 0xf]; |
2615 | } |
2616 | |
2617 | *buf = 0; |
2618 | |
2619 | return buf; |
2620 | } |
2621 | |
2622 | int |
2623 | get_traceframe_number (void) |
2624 | { |
2625 | return traceframe_number; |
2626 | } |
2627 | |
2628 | |
2629 | /* module initialization */ |
2630 | void |
2631 | _initialize_tracepoint (void) |
2632 | { |
2633 | struct cmd_list_element *c; |
2634 | |
2635 | tracepoint_chain = 0; |
2636 | tracepoint_count = 0; |
2637 | traceframe_number = -1; |
2638 | tracepoint_number = -1; |
2639 | |
2640 | set_internalvar (lookup_internalvar ("tpnum"), |
2641 | value_from_longest (builtin_type_int, (LONGESTlong) 0)); |
2642 | set_internalvar (lookup_internalvar ("trace_frame"), |
2643 | value_from_longest (builtin_type_int, (LONGESTlong) - 1)); |
2644 | |
2645 | if (tracepoint_list.list == NULL((void*)0)) |
2646 | { |
2647 | tracepoint_list.listsize = 128; |
2648 | tracepoint_list.list = xmalloc |
2649 | (tracepoint_list.listsize * sizeof (struct memrange)); |
2650 | } |
2651 | if (tracepoint_list.aexpr_list == NULL((void*)0)) |
2652 | { |
2653 | tracepoint_list.aexpr_listsize = 128; |
2654 | tracepoint_list.aexpr_list = xmalloc |
2655 | (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *)); |
2656 | } |
2657 | |
2658 | if (stepping_list.list == NULL((void*)0)) |
2659 | { |
2660 | stepping_list.listsize = 128; |
2661 | stepping_list.list = xmalloc |
2662 | (stepping_list.listsize * sizeof (struct memrange)); |
2663 | } |
2664 | |
2665 | if (stepping_list.aexpr_list == NULL((void*)0)) |
2666 | { |
2667 | stepping_list.aexpr_listsize = 128; |
2668 | stepping_list.aexpr_list = xmalloc |
2669 | (stepping_list.aexpr_listsize * sizeof (struct agent_expr *)); |
2670 | } |
2671 | |
2672 | add_info ("scope", scope_info, |
2673 | "List the variables local to a scope"); |
2674 | |
2675 | add_cmd ("tracepoints", class_trace, NULL((void*)0), |
2676 | "Tracing of program execution without stopping the program.", |
2677 | &cmdlist); |
2678 | |
2679 | add_info ("tracepoints", tracepoints_info, |
2680 | "Status of tracepoints, or tracepoint number NUMBER.\n\ |
2681 | Convenience variable \"$tpnum\" contains the number of the\n\ |
2682 | last tracepoint set."); |
2683 | |
2684 | add_info_alias ("tp", "tracepoints", 1); |
2685 | |
2686 | c = add_com ("save-tracepoints", class_trace, tracepoint_save_command, |
2687 | "Save current tracepoint definitions as a script.\n\ |
2688 | Use the 'source' command in another debug session to restore them."); |
2689 | set_cmd_completer (c, filename_completer); |
2690 | |
2691 | add_com ("tdump", class_trace, trace_dump_command, |
2692 | "Print everything collected at the current tracepoint."); |
2693 | |
2694 | add_prefix_cmd ("tfind", class_trace, trace_find_command, |
2695 | "Select a trace frame;\n\ |
2696 | No argument means forward by one frame; '-' meand backward by one frame.", |
2697 | &tfindlist, "tfind ", 1, &cmdlist); |
2698 | |
2699 | add_cmd ("outside", class_trace, trace_find_outside_command, |
2700 | "Select a trace frame whose PC is outside the given \ |
2701 | range.\nUsage: tfind outside addr1, addr2", |
2702 | &tfindlist); |
2703 | |
2704 | add_cmd ("range", class_trace, trace_find_range_command, |
2705 | "Select a trace frame whose PC is in the given range.\n\ |
2706 | Usage: tfind range addr1,addr2", |
2707 | &tfindlist); |
2708 | |
2709 | add_cmd ("line", class_trace, trace_find_line_command, |
2710 | "Select a trace frame by source line.\n\ |
2711 | Argument can be a line number (with optional source file), \n\ |
2712 | a function name, or '*' followed by an address.\n\ |
2713 | Default argument is 'the next source line that was traced'.", |
2714 | &tfindlist); |
2715 | |
2716 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, |
2717 | "Select a trace frame by tracepoint number.\n\ |
2718 | Default is the tracepoint for the current trace frame.", |
2719 | &tfindlist); |
2720 | |
2721 | add_cmd ("pc", class_trace, trace_find_pc_command, |
2722 | "Select a trace frame by PC.\n\ |
2723 | Default is the current PC, or the PC of the current trace frame.", |
2724 | &tfindlist); |
2725 | |
2726 | add_cmd ("end", class_trace, trace_find_end_command, |
2727 | "Synonym for 'none'.\n\ |
2728 | De-select any trace frame and resume 'live' debugging.", |
2729 | &tfindlist); |
2730 | |
2731 | add_cmd ("none", class_trace, trace_find_none_command, |
2732 | "De-select any trace frame and resume 'live' debugging.", |
2733 | &tfindlist); |
2734 | |
2735 | add_cmd ("start", class_trace, trace_find_start_command, |
2736 | "Select the first trace frame in the trace buffer.", |
2737 | &tfindlist); |
2738 | |
2739 | add_com ("tstatus", class_trace, trace_status_command, |
2740 | "Display the status of the current trace data collection."); |
2741 | |
2742 | add_com ("tstop", class_trace, trace_stop_command, |
2743 | "Stop trace data collection."); |
2744 | |
2745 | add_com ("tstart", class_trace, trace_start_command, |
2746 | "Start trace data collection."); |
2747 | |
2748 | add_com ("passcount", class_trace, trace_pass_command, |
2749 | "Set the passcount for a tracepoint.\n\ |
2750 | The trace will end when the tracepoint has been passed 'count' times.\n\ |
2751 | Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\ |
2752 | if TPNUM is omitted, passcount refers to the last tracepoint defined."); |
2753 | |
2754 | add_com ("end", class_trace, end_actions_pseudocommand, |
2755 | "Ends a list of commands or actions.\n\ |
2756 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
2757 | Entering \"end\" on a line by itself is the normal way to terminate\n\ |
2758 | such a list.\n\n\ |
2759 | Note: the \"end\" command cannot be used at the gdb prompt."); |
2760 | |
2761 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, |
2762 | "Specify single-stepping behavior at a tracepoint.\n\ |
2763 | Argument is number of instructions to trace in single-step mode\n\ |
2764 | following the tracepoint. This command is normally followed by\n\ |
2765 | one or more \"collect\" commands, to specify what to collect\n\ |
2766 | while single-stepping.\n\n\ |
2767 | Note: this command can only be used in a tracepoint \"actions\" list."); |
2768 | |
2769 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
2770 | add_com_alias ("stepping", "while-stepping", class_alias, 0); |
2771 | |
2772 | add_com ("collect", class_trace, collect_pseudocommand, |
2773 | "Specify one or more data items to be collected at a tracepoint.\n\ |
2774 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
2775 | collect all data (variables, registers) referenced by that expression.\n\ |
2776 | Also accepts the following special arguments:\n\ |
2777 | $regs -- all registers.\n\ |
2778 | $args -- all function arguments.\n\ |
2779 | $locals -- all variables local to the block/function scope.\n\ |
2780 | Note: this command can only be used in a tracepoint \"actions\" list."); |
2781 | |
2782 | add_com ("actions", class_trace, trace_actions_command, |
2783 | "Specify the actions to be taken at a tracepoint.\n\ |
2784 | Tracepoint actions may include collecting of specified data, \n\ |
2785 | single-stepping, or enabling/disabling other tracepoints, \n\ |
2786 | depending on target's capabilities."); |
2787 | |
2788 | add_cmd ("tracepoints", class_trace, delete_trace_command, |
2789 | "Delete specified tracepoints.\n\ |
2790 | Arguments are tracepoint numbers, separated by spaces.\n\ |
2791 | No argument means delete all tracepoints.", |
2792 | &deletelist); |
2793 | |
2794 | add_cmd ("tracepoints", class_trace, disable_trace_command, |
2795 | "Disable specified tracepoints.\n\ |
2796 | Arguments are tracepoint numbers, separated by spaces.\n\ |
2797 | No argument means disable all tracepoints.", |
2798 | &disablelist); |
2799 | |
2800 | add_cmd ("tracepoints", class_trace, enable_trace_command, |
2801 | "Enable specified tracepoints.\n\ |
2802 | Arguments are tracepoint numbers, separated by spaces.\n\ |
2803 | No argument means enable all tracepoints.", |
2804 | &enablelist); |
2805 | |
2806 | c = add_com ("trace", class_trace, trace_command, |
2807 | "Set a tracepoint at a specified line or function or address.\n\ |
2808 | Argument may be a line number, function name, or '*' plus an address.\n\ |
2809 | For a line number or function, trace at the start of its code.\n\ |
2810 | If an address is specified, trace at that exact address.\n\n\ |
2811 | Do \"help tracepoints\" for info on other tracepoint commands."); |
2812 | set_cmd_completer (c, location_completer); |
2813 | |
2814 | add_com_alias ("tp", "trace", class_alias, 0); |
2815 | add_com_alias ("tr", "trace", class_alias, 1); |
2816 | add_com_alias ("tra", "trace", class_alias, 1); |
2817 | add_com_alias ("trac", "trace", class_alias, 1); |
2818 | } |