Commit | Line | Data |
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c906108c | 1 | /* Tracing functionality for remote targets in custom GDB protocol |
9f60d481 | 2 | |
6aba47ca | 3 | Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, |
0fb0cc75 | 4 | 2007, 2008, 2009 Free Software Foundation, Inc. |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
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 | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 11 | (at your option) any later version. |
c906108c | 12 | |
c5aa993b JM |
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. | |
c906108c | 17 | |
c5aa993b | 18 | You should have received a copy of the GNU General Public License |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
20 | |
21 | #include "defs.h" | |
5af949e3 | 22 | #include "arch-utils.h" |
c906108c SS |
23 | #include "symtab.h" |
24 | #include "frame.h" | |
c906108c SS |
25 | #include "gdbtypes.h" |
26 | #include "expression.h" | |
27 | #include "gdbcmd.h" | |
28 | #include "value.h" | |
29 | #include "target.h" | |
30 | #include "language.h" | |
31 | #include "gdb_string.h" | |
104c1213 | 32 | #include "inferior.h" |
1042e4c0 | 33 | #include "breakpoint.h" |
104c1213 | 34 | #include "tracepoint.h" |
c2c6d25f | 35 | #include "remote.h" |
782b2b07 | 36 | extern int remote_supports_cond_tracepoints (void); |
c5f0f3d0 | 37 | #include "linespec.h" |
4e052eda | 38 | #include "regcache.h" |
c94fdfd0 | 39 | #include "completer.h" |
fe898f56 | 40 | #include "block.h" |
de4f826b | 41 | #include "dictionary.h" |
383f836e | 42 | #include "observer.h" |
029a67e4 | 43 | #include "user-regs.h" |
79a45b7d | 44 | #include "valprint.h" |
41575630 | 45 | #include "gdbcore.h" |
768a979c | 46 | #include "objfiles.h" |
c906108c SS |
47 | |
48 | #include "ax.h" | |
49 | #include "ax-gdb.h" | |
50 | ||
51 | /* readline include files */ | |
dbda9972 AC |
52 | #include "readline/readline.h" |
53 | #include "readline/history.h" | |
c906108c SS |
54 | |
55 | /* readline defines this. */ | |
56 | #undef savestring | |
57 | ||
58 | #ifdef HAVE_UNISTD_H | |
59 | #include <unistd.h> | |
60 | #endif | |
61 | ||
d183932d MS |
62 | /* Maximum length of an agent aexpression. |
63 | This accounts for the fact that packets are limited to 400 bytes | |
c906108c SS |
64 | (which includes everything -- including the checksum), and assumes |
65 | the worst case of maximum length for each of the pieces of a | |
66 | continuation packet. | |
c5aa993b | 67 | |
c906108c SS |
68 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
69 | large. (400 - 31)/2 == 184 */ | |
70 | #define MAX_AGENT_EXPR_LEN 184 | |
71 | ||
98c5b216 TT |
72 | /* A hook used to notify the UI of tracepoint operations. */ |
73 | ||
74 | void (*deprecated_trace_find_hook) (char *arg, int from_tty); | |
75 | void (*deprecated_trace_start_stop_hook) (int start, int from_tty); | |
c906108c | 76 | |
9a4105ab AC |
77 | extern void (*deprecated_readline_begin_hook) (char *, ...); |
78 | extern char *(*deprecated_readline_hook) (char *); | |
79 | extern void (*deprecated_readline_end_hook) (void); | |
c906108c | 80 | |
104c1213 JM |
81 | /* GDB commands implemented in other modules: |
82 | */ | |
83 | ||
a14ed312 | 84 | extern void output_command (char *, int); |
104c1213 | 85 | |
c906108c SS |
86 | /* |
87 | Tracepoint.c: | |
88 | ||
89 | This module defines the following debugger commands: | |
90 | trace : set a tracepoint on a function, line, or address. | |
91 | info trace : list all debugger-defined tracepoints. | |
92 | delete trace : delete one or more tracepoints. | |
93 | enable trace : enable one or more tracepoints. | |
94 | disable trace : disable one or more tracepoints. | |
95 | actions : specify actions to be taken at a tracepoint. | |
96 | passcount : specify a pass count for a tracepoint. | |
97 | tstart : start a trace experiment. | |
98 | tstop : stop a trace experiment. | |
99 | tstatus : query the status of a trace experiment. | |
100 | tfind : find a trace frame in the trace buffer. | |
101 | tdump : print everything collected at the current tracepoint. | |
102 | save-tracepoints : write tracepoint setup into a file. | |
103 | ||
104 | This module defines the following user-visible debugger variables: | |
105 | $trace_frame : sequence number of trace frame currently being debugged. | |
106 | $trace_line : source line of trace frame currently being debugged. | |
107 | $trace_file : source file of trace frame currently being debugged. | |
108 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
c5aa993b | 109 | */ |
c906108c SS |
110 | |
111 | ||
112 | /* ======= Important global variables: ======= */ | |
113 | ||
c906108c SS |
114 | /* Number of last traceframe collected. */ |
115 | static int traceframe_number; | |
116 | ||
117 | /* Tracepoint for last traceframe collected. */ | |
118 | static int tracepoint_number; | |
119 | ||
120 | /* Symbol for function for last traceframe collected */ | |
121 | static struct symbol *traceframe_fun; | |
122 | ||
123 | /* Symtab and line for last traceframe collected */ | |
124 | static struct symtab_and_line traceframe_sal; | |
125 | ||
126 | /* Tracing command lists */ | |
127 | static struct cmd_list_element *tfindlist; | |
128 | ||
129 | /* ======= Important command functions: ======= */ | |
a14ed312 KB |
130 | static void trace_actions_command (char *, int); |
131 | static void trace_start_command (char *, int); | |
132 | static void trace_stop_command (char *, int); | |
133 | static void trace_status_command (char *, int); | |
134 | static void trace_find_command (char *, int); | |
135 | static void trace_find_pc_command (char *, int); | |
136 | static void trace_find_tracepoint_command (char *, int); | |
137 | static void trace_find_line_command (char *, int); | |
138 | static void trace_find_range_command (char *, int); | |
139 | static void trace_find_outside_command (char *, int); | |
140 | static void tracepoint_save_command (char *, int); | |
141 | static void trace_dump_command (char *, int); | |
c906108c SS |
142 | |
143 | /* support routines */ | |
c906108c SS |
144 | |
145 | struct collection_list; | |
a14ed312 | 146 | static void add_aexpr (struct collection_list *, struct agent_expr *); |
47b667de | 147 | static char *mem2hex (gdb_byte *, char *, int); |
a14ed312 KB |
148 | static void add_register (struct collection_list *collection, |
149 | unsigned int regno); | |
1042e4c0 | 150 | static struct cleanup *make_cleanup_free_actions (struct breakpoint *t); |
a14ed312 KB |
151 | static void free_actions_list (char **actions_list); |
152 | static void free_actions_list_cleanup_wrapper (void *); | |
392a587b | 153 | |
a14ed312 | 154 | extern void _initialize_tracepoint (void); |
c906108c SS |
155 | |
156 | /* Utility: returns true if "target remote" */ | |
157 | static int | |
fba45db2 | 158 | target_is_remote (void) |
c906108c SS |
159 | { |
160 | if (current_target.to_shortname && | |
549678da NS |
161 | (strcmp (current_target.to_shortname, "remote") == 0 |
162 | || strcmp (current_target.to_shortname, "extended-remote") == 0)) | |
c906108c SS |
163 | return 1; |
164 | else | |
165 | return 0; | |
166 | } | |
167 | ||
168 | /* Utility: generate error from an incoming stub packet. */ | |
c5aa993b | 169 | static void |
fba45db2 | 170 | trace_error (char *buf) |
c906108c SS |
171 | { |
172 | if (*buf++ != 'E') | |
173 | return; /* not an error msg */ | |
c5aa993b | 174 | switch (*buf) |
c906108c SS |
175 | { |
176 | case '1': /* malformed packet error */ | |
177 | if (*++buf == '0') /* general case: */ | |
8a3fe4f8 | 178 | error (_("tracepoint.c: error in outgoing packet.")); |
c906108c | 179 | else |
8a3fe4f8 | 180 | error (_("tracepoint.c: error in outgoing packet at field #%ld."), |
c906108c SS |
181 | strtol (buf, NULL, 16)); |
182 | case '2': | |
8a3fe4f8 | 183 | error (_("trace API error 0x%s."), ++buf); |
c906108c | 184 | default: |
8a3fe4f8 | 185 | error (_("Target returns error code '%s'."), buf); |
c906108c SS |
186 | } |
187 | } | |
188 | ||
d183932d | 189 | /* Utility: wait for reply from stub, while accepting "O" packets. */ |
c906108c | 190 | static char * |
6d820c5c DJ |
191 | remote_get_noisy_reply (char **buf_p, |
192 | long *sizeof_buf) | |
c906108c | 193 | { |
d183932d | 194 | do /* Loop on reply from remote stub. */ |
c906108c | 195 | { |
6d820c5c | 196 | char *buf; |
c5aa993b | 197 | QUIT; /* allow user to bail out with ^C */ |
6d820c5c DJ |
198 | getpkt (buf_p, sizeof_buf, 0); |
199 | buf = *buf_p; | |
c906108c | 200 | if (buf[0] == 0) |
8a3fe4f8 | 201 | error (_("Target does not support this command.")); |
c906108c SS |
202 | else if (buf[0] == 'E') |
203 | trace_error (buf); | |
204 | else if (buf[0] == 'O' && | |
205 | buf[1] != 'K') | |
206 | remote_console_output (buf + 1); /* 'O' message from stub */ | |
207 | else | |
c5aa993b JM |
208 | return buf; /* here's the actual reply */ |
209 | } | |
210 | while (1); | |
c906108c SS |
211 | } |
212 | ||
c906108c SS |
213 | /* Set traceframe number to NUM. */ |
214 | static void | |
fba45db2 | 215 | set_traceframe_num (int num) |
c906108c SS |
216 | { |
217 | traceframe_number = num; | |
4fa62494 | 218 | set_internalvar_integer (lookup_internalvar ("trace_frame"), num); |
c906108c SS |
219 | } |
220 | ||
221 | /* Set tracepoint number to NUM. */ | |
222 | static void | |
fba45db2 | 223 | set_tracepoint_num (int num) |
c906108c SS |
224 | { |
225 | tracepoint_number = num; | |
4fa62494 | 226 | set_internalvar_integer (lookup_internalvar ("tracepoint"), num); |
c906108c SS |
227 | } |
228 | ||
229 | /* Set externally visible debug variables for querying/printing | |
230 | the traceframe context (line, function, file) */ | |
231 | ||
232 | static void | |
fb14de7b | 233 | set_traceframe_context (struct frame_info *trace_frame) |
c906108c | 234 | { |
fb14de7b UW |
235 | CORE_ADDR trace_pc; |
236 | ||
fb14de7b | 237 | if (trace_frame == NULL) /* Cease debugging any trace buffers. */ |
c906108c SS |
238 | { |
239 | traceframe_fun = 0; | |
240 | traceframe_sal.pc = traceframe_sal.line = 0; | |
241 | traceframe_sal.symtab = NULL; | |
4fa62494 UW |
242 | clear_internalvar (lookup_internalvar ("trace_func")); |
243 | clear_internalvar (lookup_internalvar ("trace_file")); | |
244 | set_internalvar_integer (lookup_internalvar ("trace_line"), -1); | |
c906108c SS |
245 | return; |
246 | } | |
247 | ||
d183932d | 248 | /* Save as globals for internal use. */ |
fb14de7b | 249 | trace_pc = get_frame_pc (trace_frame); |
c906108c SS |
250 | traceframe_sal = find_pc_line (trace_pc, 0); |
251 | traceframe_fun = find_pc_function (trace_pc); | |
252 | ||
d183932d MS |
253 | /* Save linenumber as "$trace_line", a debugger variable visible to |
254 | users. */ | |
4fa62494 UW |
255 | set_internalvar_integer (lookup_internalvar ("trace_line"), |
256 | traceframe_sal.line); | |
c906108c | 257 | |
d183932d MS |
258 | /* Save func name as "$trace_func", a debugger variable visible to |
259 | users. */ | |
4fa62494 UW |
260 | if (traceframe_fun == NULL |
261 | || SYMBOL_LINKAGE_NAME (traceframe_fun) == NULL) | |
262 | clear_internalvar (lookup_internalvar ("trace_func")); | |
c906108c | 263 | else |
78267919 UW |
264 | set_internalvar_string (lookup_internalvar ("trace_func"), |
265 | SYMBOL_LINKAGE_NAME (traceframe_fun)); | |
c906108c | 266 | |
d183932d MS |
267 | /* Save file name as "$trace_file", a debugger variable visible to |
268 | users. */ | |
4fa62494 UW |
269 | if (traceframe_sal.symtab == NULL |
270 | || traceframe_sal.symtab->filename == NULL) | |
271 | clear_internalvar (lookup_internalvar ("trace_file")); | |
c906108c | 272 | else |
78267919 UW |
273 | set_internalvar_string (lookup_internalvar ("trace_file"), |
274 | traceframe_sal.symtab->filename); | |
c906108c SS |
275 | } |
276 | ||
c906108c SS |
277 | /* ACTIONS functions: */ |
278 | ||
279 | /* Prototypes for action-parsing utility commands */ | |
1042e4c0 | 280 | static void read_actions (struct breakpoint *); |
c906108c SS |
281 | |
282 | /* The three functions: | |
c5aa993b JM |
283 | collect_pseudocommand, |
284 | while_stepping_pseudocommand, and | |
285 | end_actions_pseudocommand | |
c906108c SS |
286 | are placeholders for "commands" that are actually ONLY to be used |
287 | within a tracepoint action list. If the actual function is ever called, | |
288 | it means that somebody issued the "command" at the top level, | |
289 | which is always an error. */ | |
290 | ||
1042e4c0 | 291 | void |
fba45db2 | 292 | end_actions_pseudocommand (char *args, int from_tty) |
c906108c | 293 | { |
8a3fe4f8 | 294 | error (_("This command cannot be used at the top level.")); |
c906108c SS |
295 | } |
296 | ||
1042e4c0 | 297 | void |
fba45db2 | 298 | while_stepping_pseudocommand (char *args, int from_tty) |
c906108c | 299 | { |
8a3fe4f8 | 300 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
301 | } |
302 | ||
303 | static void | |
fba45db2 | 304 | collect_pseudocommand (char *args, int from_tty) |
c906108c | 305 | { |
8a3fe4f8 | 306 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
307 | } |
308 | ||
309 | /* Enter a list of actions for a tracepoint. */ | |
310 | static void | |
fba45db2 | 311 | trace_actions_command (char *args, int from_tty) |
c906108c | 312 | { |
1042e4c0 | 313 | struct breakpoint *t; |
c906108c SS |
314 | char tmpbuf[128]; |
315 | char *end_msg = "End with a line saying just \"end\"."; | |
316 | ||
c2d11a7d | 317 | t = get_tracepoint_by_number (&args, 0, 1); |
7a292a7a | 318 | if (t) |
c906108c SS |
319 | { |
320 | sprintf (tmpbuf, "Enter actions for tracepoint %d, one per line.", | |
321 | t->number); | |
322 | ||
323 | if (from_tty) | |
324 | { | |
9a4105ab AC |
325 | if (deprecated_readline_begin_hook) |
326 | (*deprecated_readline_begin_hook) ("%s %s\n", tmpbuf, end_msg); | |
c906108c SS |
327 | else if (input_from_terminal_p ()) |
328 | printf_filtered ("%s\n%s\n", tmpbuf, end_msg); | |
329 | } | |
330 | ||
331 | free_actions (t); | |
332 | t->step_count = 0; /* read_actions may set this */ | |
333 | read_actions (t); | |
334 | ||
9a4105ab AC |
335 | if (deprecated_readline_end_hook) |
336 | (*deprecated_readline_end_hook) (); | |
c906108c SS |
337 | /* tracepoints_changed () */ |
338 | } | |
5c44784c | 339 | /* else just return */ |
c906108c SS |
340 | } |
341 | ||
342 | /* worker function */ | |
343 | static void | |
1042e4c0 | 344 | read_actions (struct breakpoint *t) |
c906108c SS |
345 | { |
346 | char *line; | |
347 | char *prompt1 = "> ", *prompt2 = " > "; | |
348 | char *prompt = prompt1; | |
349 | enum actionline_type linetype; | |
350 | extern FILE *instream; | |
351 | struct action_line *next = NULL, *temp; | |
352 | struct cleanup *old_chain; | |
353 | ||
354 | /* Control-C quits instantly if typed while in this loop | |
355 | since it should not wait until the user types a newline. */ | |
356 | immediate_quit++; | |
1a6fae3c MK |
357 | /* FIXME: kettenis/20010823: Something is wrong here. In this file |
358 | STOP_SIGNAL is never defined. So this code has been left out, at | |
359 | least for quite a while now. Replacing STOP_SIGNAL with SIGTSTP | |
360 | leads to compilation failures since the variable job_control | |
361 | isn't declared. Leave this alone for now. */ | |
c906108c SS |
362 | #ifdef STOP_SIGNAL |
363 | if (job_control) | |
362646f5 | 364 | signal (STOP_SIGNAL, handle_stop_sig); |
c906108c | 365 | #endif |
74b7792f | 366 | old_chain = make_cleanup_free_actions (t); |
c906108c SS |
367 | while (1) |
368 | { | |
d183932d MS |
369 | /* Make sure that all output has been output. Some machines may |
370 | let you get away with leaving out some of the gdb_flush, but | |
371 | not all. */ | |
c906108c SS |
372 | wrap_here (""); |
373 | gdb_flush (gdb_stdout); | |
374 | gdb_flush (gdb_stderr); | |
375 | ||
9a4105ab AC |
376 | if (deprecated_readline_hook && instream == NULL) |
377 | line = (*deprecated_readline_hook) (prompt); | |
c906108c SS |
378 | else if (instream == stdin && ISATTY (instream)) |
379 | { | |
b4f5539f | 380 | line = gdb_readline_wrapper (prompt); |
c5aa993b | 381 | if (line && *line) /* add it to command history */ |
c906108c SS |
382 | add_history (line); |
383 | } | |
384 | else | |
385 | line = gdb_readline (0); | |
386 | ||
549678da | 387 | if (!line) |
d844e34b JB |
388 | { |
389 | line = xstrdup ("end"); | |
390 | printf_filtered ("end\n"); | |
391 | } | |
549678da | 392 | |
c906108c SS |
393 | linetype = validate_actionline (&line, t); |
394 | if (linetype == BADLINE) | |
c5aa993b | 395 | continue; /* already warned -- collect another line */ |
c906108c SS |
396 | |
397 | temp = xmalloc (sizeof (struct action_line)); | |
398 | temp->next = NULL; | |
399 | temp->action = line; | |
400 | ||
401 | if (next == NULL) /* first action for this tracepoint? */ | |
402 | t->actions = next = temp; | |
403 | else | |
404 | { | |
405 | next->next = temp; | |
406 | next = temp; | |
407 | } | |
408 | ||
409 | if (linetype == STEPPING) /* begin "while-stepping" */ | |
7a292a7a SS |
410 | { |
411 | if (prompt == prompt2) | |
412 | { | |
8a3fe4f8 | 413 | warning (_("Already processing 'while-stepping'")); |
7a292a7a SS |
414 | continue; |
415 | } | |
416 | else | |
417 | prompt = prompt2; /* change prompt for stepping actions */ | |
418 | } | |
c906108c | 419 | else if (linetype == END) |
7a292a7a SS |
420 | { |
421 | if (prompt == prompt2) | |
422 | { | |
423 | prompt = prompt1; /* end of single-stepping actions */ | |
424 | } | |
425 | else | |
c5aa993b | 426 | { /* end of actions */ |
7a292a7a SS |
427 | if (t->actions->next == NULL) |
428 | { | |
d183932d MS |
429 | /* An "end" all by itself with no other actions |
430 | means this tracepoint has no actions. | |
431 | Discard empty list. */ | |
7a292a7a SS |
432 | free_actions (t); |
433 | } | |
434 | break; | |
435 | } | |
436 | } | |
c906108c SS |
437 | } |
438 | #ifdef STOP_SIGNAL | |
439 | if (job_control) | |
440 | signal (STOP_SIGNAL, SIG_DFL); | |
441 | #endif | |
8edbea78 | 442 | immediate_quit--; |
c906108c SS |
443 | discard_cleanups (old_chain); |
444 | } | |
445 | ||
446 | /* worker function */ | |
447 | enum actionline_type | |
1042e4c0 | 448 | validate_actionline (char **line, struct breakpoint *t) |
c906108c SS |
449 | { |
450 | struct cmd_list_element *c; | |
451 | struct expression *exp = NULL; | |
c906108c SS |
452 | struct cleanup *old_chain = NULL; |
453 | char *p; | |
454 | ||
15255275 MS |
455 | /* if EOF is typed, *line is NULL */ |
456 | if (*line == NULL) | |
457 | return END; | |
458 | ||
104c1213 | 459 | for (p = *line; isspace ((int) *p);) |
c906108c SS |
460 | p++; |
461 | ||
d183932d MS |
462 | /* Symbol lookup etc. */ |
463 | if (*p == '\0') /* empty line: just prompt for another line. */ | |
c906108c SS |
464 | return BADLINE; |
465 | ||
c5aa993b | 466 | if (*p == '#') /* comment line */ |
c906108c SS |
467 | return GENERIC; |
468 | ||
469 | c = lookup_cmd (&p, cmdlist, "", -1, 1); | |
470 | if (c == 0) | |
471 | { | |
8a3fe4f8 | 472 | warning (_("'%s' is not an action that I know, or is ambiguous."), |
d183932d | 473 | p); |
c906108c SS |
474 | return BADLINE; |
475 | } | |
c5aa993b | 476 | |
bbaca940 | 477 | if (cmd_cfunc_eq (c, collect_pseudocommand)) |
c906108c SS |
478 | { |
479 | struct agent_expr *aexpr; | |
480 | struct agent_reqs areqs; | |
481 | ||
c5aa993b JM |
482 | do |
483 | { /* repeat over a comma-separated list */ | |
484 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 485 | while (isspace ((int) *p)) |
c5aa993b | 486 | p++; |
c906108c | 487 | |
c5aa993b JM |
488 | if (*p == '$') /* look for special pseudo-symbols */ |
489 | { | |
c5aa993b JM |
490 | if ((0 == strncasecmp ("reg", p + 1, 3)) || |
491 | (0 == strncasecmp ("arg", p + 1, 3)) || | |
492 | (0 == strncasecmp ("loc", p + 1, 3))) | |
493 | { | |
494 | p = strchr (p, ','); | |
495 | continue; | |
496 | } | |
d183932d | 497 | /* else fall thru, treat p as an expression and parse it! */ |
c5aa993b | 498 | } |
1042e4c0 | 499 | exp = parse_exp_1 (&p, block_for_pc (t->loc->address), 1); |
c13c43fd | 500 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 501 | |
c5aa993b JM |
502 | if (exp->elts[0].opcode == OP_VAR_VALUE) |
503 | { | |
504 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) | |
505 | { | |
8a3fe4f8 | 506 | warning (_("constant %s (value %ld) will not be collected."), |
3567439c | 507 | SYMBOL_PRINT_NAME (exp->elts[2].symbol), |
c5aa993b JM |
508 | SYMBOL_VALUE (exp->elts[2].symbol)); |
509 | return BADLINE; | |
510 | } | |
511 | else if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_OPTIMIZED_OUT) | |
512 | { | |
8a3fe4f8 | 513 | warning (_("%s is optimized away and cannot be collected."), |
3567439c | 514 | SYMBOL_PRINT_NAME (exp->elts[2].symbol)); |
c5aa993b JM |
515 | return BADLINE; |
516 | } | |
517 | } | |
c906108c | 518 | |
d183932d MS |
519 | /* We have something to collect, make sure that the expr to |
520 | bytecode translator can handle it and that it's not too | |
521 | long. */ | |
1042e4c0 | 522 | aexpr = gen_trace_for_expr (t->loc->address, exp); |
f23d52e0 | 523 | make_cleanup_free_agent_expr (aexpr); |
c906108c | 524 | |
c5aa993b | 525 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
8a3fe4f8 | 526 | error (_("expression too complicated, try simplifying")); |
c906108c | 527 | |
c5aa993b | 528 | ax_reqs (aexpr, &areqs); |
b8c9b27d | 529 | (void) make_cleanup (xfree, areqs.reg_mask); |
c906108c | 530 | |
c5aa993b | 531 | if (areqs.flaw != agent_flaw_none) |
8a3fe4f8 | 532 | error (_("malformed expression")); |
c906108c | 533 | |
c5aa993b | 534 | if (areqs.min_height < 0) |
8a3fe4f8 | 535 | error (_("gdb: Internal error: expression has min height < 0")); |
c906108c | 536 | |
c5aa993b | 537 | if (areqs.max_height > 20) |
8a3fe4f8 | 538 | error (_("expression too complicated, try simplifying")); |
c906108c | 539 | |
c5aa993b JM |
540 | do_cleanups (old_chain); |
541 | } | |
542 | while (p && *p++ == ','); | |
c906108c SS |
543 | return GENERIC; |
544 | } | |
bbaca940 | 545 | else if (cmd_cfunc_eq (c, while_stepping_pseudocommand)) |
c906108c | 546 | { |
c5aa993b | 547 | char *steparg; /* in case warning is necessary */ |
c906108c | 548 | |
104c1213 | 549 | while (isspace ((int) *p)) |
c906108c SS |
550 | p++; |
551 | steparg = p; | |
552 | ||
553 | if (*p == '\0' || | |
554 | (t->step_count = strtol (p, &p, 0)) == 0) | |
555 | { | |
8a3fe4f8 | 556 | warning (_("'%s': bad step-count; command ignored."), *line); |
c906108c SS |
557 | return BADLINE; |
558 | } | |
559 | return STEPPING; | |
560 | } | |
bbaca940 | 561 | else if (cmd_cfunc_eq (c, end_actions_pseudocommand)) |
c906108c SS |
562 | return END; |
563 | else | |
564 | { | |
8a3fe4f8 | 565 | warning (_("'%s' is not a supported tracepoint action."), *line); |
c906108c SS |
566 | return BADLINE; |
567 | } | |
568 | } | |
569 | ||
570 | /* worker function */ | |
c5aa993b | 571 | void |
1042e4c0 | 572 | free_actions (struct breakpoint *t) |
c906108c SS |
573 | { |
574 | struct action_line *line, *next; | |
575 | ||
576 | for (line = t->actions; line; line = next) | |
577 | { | |
578 | next = line->next; | |
c5aa993b | 579 | if (line->action) |
b8c9b27d KB |
580 | xfree (line->action); |
581 | xfree (line); | |
c906108c SS |
582 | } |
583 | t->actions = NULL; | |
584 | } | |
585 | ||
74b7792f AC |
586 | static void |
587 | do_free_actions_cleanup (void *t) | |
588 | { | |
589 | free_actions (t); | |
590 | } | |
591 | ||
592 | static struct cleanup * | |
1042e4c0 | 593 | make_cleanup_free_actions (struct breakpoint *t) |
74b7792f AC |
594 | { |
595 | return make_cleanup (do_free_actions_cleanup, t); | |
596 | } | |
597 | ||
f50e79a4 JB |
598 | enum { |
599 | memrange_absolute = -1 | |
600 | }; | |
601 | ||
c5aa993b JM |
602 | struct memrange |
603 | { | |
f50e79a4 JB |
604 | int type; /* memrange_absolute for absolute memory range, |
605 | else basereg number */ | |
c906108c SS |
606 | bfd_signed_vma start; |
607 | bfd_signed_vma end; | |
608 | }; | |
609 | ||
c5aa993b JM |
610 | struct collection_list |
611 | { | |
549678da | 612 | unsigned char regs_mask[32]; /* room for up to 256 regs */ |
c5aa993b JM |
613 | long listsize; |
614 | long next_memrange; | |
615 | struct memrange *list; | |
616 | long aexpr_listsize; /* size of array pointed to by expr_list elt */ | |
617 | long next_aexpr_elt; | |
618 | struct agent_expr **aexpr_list; | |
619 | ||
620 | } | |
621 | tracepoint_list, stepping_list; | |
c906108c SS |
622 | |
623 | /* MEMRANGE functions: */ | |
624 | ||
a14ed312 | 625 | static int memrange_cmp (const void *, const void *); |
c906108c SS |
626 | |
627 | /* compare memranges for qsort */ | |
628 | static int | |
fba45db2 | 629 | memrange_cmp (const void *va, const void *vb) |
c906108c SS |
630 | { |
631 | const struct memrange *a = va, *b = vb; | |
632 | ||
633 | if (a->type < b->type) | |
634 | return -1; | |
635 | if (a->type > b->type) | |
c5aa993b | 636 | return 1; |
f50e79a4 | 637 | if (a->type == memrange_absolute) |
c906108c | 638 | { |
c5aa993b JM |
639 | if ((bfd_vma) a->start < (bfd_vma) b->start) |
640 | return -1; | |
641 | if ((bfd_vma) a->start > (bfd_vma) b->start) | |
642 | return 1; | |
c906108c SS |
643 | } |
644 | else | |
645 | { | |
c5aa993b | 646 | if (a->start < b->start) |
c906108c | 647 | return -1; |
c5aa993b JM |
648 | if (a->start > b->start) |
649 | return 1; | |
c906108c SS |
650 | } |
651 | return 0; | |
652 | } | |
653 | ||
d183932d | 654 | /* Sort the memrange list using qsort, and merge adjacent memranges. */ |
c906108c | 655 | static void |
fba45db2 | 656 | memrange_sortmerge (struct collection_list *memranges) |
c906108c SS |
657 | { |
658 | int a, b; | |
659 | ||
c5aa993b | 660 | qsort (memranges->list, memranges->next_memrange, |
c906108c SS |
661 | sizeof (struct memrange), memrange_cmp); |
662 | if (memranges->next_memrange > 0) | |
663 | { | |
664 | for (a = 0, b = 1; b < memranges->next_memrange; b++) | |
665 | { | |
666 | if (memranges->list[a].type == memranges->list[b].type && | |
c5aa993b | 667 | memranges->list[b].start - memranges->list[a].end <= |
0c92afe8 | 668 | MAX_REGISTER_SIZE) |
c906108c SS |
669 | { |
670 | /* memrange b starts before memrange a ends; merge them. */ | |
671 | if (memranges->list[b].end > memranges->list[a].end) | |
672 | memranges->list[a].end = memranges->list[b].end; | |
673 | continue; /* next b, same a */ | |
674 | } | |
675 | a++; /* next a */ | |
676 | if (a != b) | |
c5aa993b | 677 | memcpy (&memranges->list[a], &memranges->list[b], |
c906108c SS |
678 | sizeof (struct memrange)); |
679 | } | |
680 | memranges->next_memrange = a + 1; | |
681 | } | |
682 | } | |
683 | ||
d183932d | 684 | /* Add a register to a collection list. */ |
392a587b | 685 | static void |
fba45db2 | 686 | add_register (struct collection_list *collection, unsigned int regno) |
c906108c SS |
687 | { |
688 | if (info_verbose) | |
689 | printf_filtered ("collect register %d\n", regno); | |
27e06d3e | 690 | if (regno >= (8 * sizeof (collection->regs_mask))) |
8a3fe4f8 | 691 | error (_("Internal: register number %d too large for tracepoint"), |
c906108c | 692 | regno); |
c5aa993b | 693 | collection->regs_mask[regno / 8] |= 1 << (regno % 8); |
c906108c SS |
694 | } |
695 | ||
696 | /* Add a memrange to a collection list */ | |
697 | static void | |
d183932d MS |
698 | add_memrange (struct collection_list *memranges, |
699 | int type, bfd_signed_vma base, | |
fba45db2 | 700 | unsigned long len) |
c906108c SS |
701 | { |
702 | if (info_verbose) | |
104c1213 JM |
703 | { |
704 | printf_filtered ("(%d,", type); | |
705 | printf_vma (base); | |
706 | printf_filtered (",%ld)\n", len); | |
707 | } | |
708 | ||
f50e79a4 | 709 | /* type: memrange_absolute == memory, other n == basereg */ |
c5aa993b | 710 | memranges->list[memranges->next_memrange].type = type; |
d183932d | 711 | /* base: addr if memory, offset if reg relative. */ |
c906108c SS |
712 | memranges->list[memranges->next_memrange].start = base; |
713 | /* len: we actually save end (base + len) for convenience */ | |
c5aa993b | 714 | memranges->list[memranges->next_memrange].end = base + len; |
c906108c SS |
715 | memranges->next_memrange++; |
716 | if (memranges->next_memrange >= memranges->listsize) | |
717 | { | |
718 | memranges->listsize *= 2; | |
c5aa993b | 719 | memranges->list = xrealloc (memranges->list, |
c906108c SS |
720 | memranges->listsize); |
721 | } | |
722 | ||
f50e79a4 | 723 | if (type != memrange_absolute) /* Better collect the base register! */ |
c906108c SS |
724 | add_register (memranges, type); |
725 | } | |
726 | ||
d183932d | 727 | /* Add a symbol to a collection list. */ |
c906108c | 728 | static void |
d183932d MS |
729 | collect_symbol (struct collection_list *collect, |
730 | struct symbol *sym, | |
a6d9a66e | 731 | struct gdbarch *gdbarch, |
0936ad1d SS |
732 | long frame_regno, long frame_offset, |
733 | CORE_ADDR scope) | |
c906108c | 734 | { |
c5aa993b | 735 | unsigned long len; |
104c1213 | 736 | unsigned int reg; |
c906108c SS |
737 | bfd_signed_vma offset; |
738 | ||
c5aa993b JM |
739 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
740 | switch (SYMBOL_CLASS (sym)) | |
741 | { | |
742 | default: | |
743 | printf_filtered ("%s: don't know symbol class %d\n", | |
3567439c | 744 | SYMBOL_PRINT_NAME (sym), |
d183932d | 745 | SYMBOL_CLASS (sym)); |
c5aa993b JM |
746 | break; |
747 | case LOC_CONST: | |
104c1213 | 748 | printf_filtered ("constant %s (value %ld) will not be collected.\n", |
3567439c | 749 | SYMBOL_PRINT_NAME (sym), SYMBOL_VALUE (sym)); |
c5aa993b JM |
750 | break; |
751 | case LOC_STATIC: | |
752 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
753 | if (info_verbose) | |
104c1213 JM |
754 | { |
755 | char tmp[40]; | |
756 | ||
757 | sprintf_vma (tmp, offset); | |
758 | printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", | |
3567439c | 759 | SYMBOL_PRINT_NAME (sym), len, |
d183932d | 760 | tmp /* address */); |
104c1213 | 761 | } |
f50e79a4 | 762 | add_memrange (collect, memrange_absolute, offset, len); |
c5aa993b JM |
763 | break; |
764 | case LOC_REGISTER: | |
a6d9a66e | 765 | reg = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); |
c5aa993b | 766 | if (info_verbose) |
d183932d | 767 | printf_filtered ("LOC_REG[parm] %s: ", |
3567439c | 768 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 769 | add_register (collect, reg); |
d183932d MS |
770 | /* Check for doubles stored in two registers. */ |
771 | /* FIXME: how about larger types stored in 3 or more regs? */ | |
c5aa993b | 772 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT && |
a6d9a66e | 773 | len > register_size (gdbarch, reg)) |
c5aa993b JM |
774 | add_register (collect, reg + 1); |
775 | break; | |
776 | case LOC_REF_ARG: | |
777 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); | |
778 | printf_filtered (" (will not collect %s)\n", | |
3567439c | 779 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
780 | break; |
781 | case LOC_ARG: | |
782 | reg = frame_regno; | |
783 | offset = frame_offset + SYMBOL_VALUE (sym); | |
784 | if (info_verbose) | |
785 | { | |
104c1213 | 786 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 787 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
788 | printf_vma (offset); |
789 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
790 | } |
791 | add_memrange (collect, reg, offset, len); | |
792 | break; | |
793 | case LOC_REGPARM_ADDR: | |
794 | reg = SYMBOL_VALUE (sym); | |
795 | offset = 0; | |
796 | if (info_verbose) | |
797 | { | |
104c1213 | 798 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ", |
3567439c | 799 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
800 | printf_vma (offset); |
801 | printf_filtered (" from reg %d\n", reg); | |
c5aa993b JM |
802 | } |
803 | add_memrange (collect, reg, offset, len); | |
804 | break; | |
805 | case LOC_LOCAL: | |
c5aa993b JM |
806 | reg = frame_regno; |
807 | offset = frame_offset + SYMBOL_VALUE (sym); | |
808 | if (info_verbose) | |
809 | { | |
104c1213 | 810 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 811 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
812 | printf_vma (offset); |
813 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
814 | } |
815 | add_memrange (collect, reg, offset, len); | |
816 | break; | |
c5aa993b | 817 | case LOC_UNRESOLVED: |
d183932d | 818 | printf_filtered ("Don't know LOC_UNRESOLVED %s\n", |
3567439c | 819 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
820 | break; |
821 | case LOC_OPTIMIZED_OUT: | |
8e1a459b | 822 | printf_filtered ("%s has been optimized out of existence.\n", |
3567439c | 823 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 824 | break; |
0936ad1d SS |
825 | |
826 | case LOC_COMPUTED: | |
827 | { | |
828 | struct agent_expr *aexpr; | |
829 | struct cleanup *old_chain1 = NULL; | |
830 | struct agent_reqs areqs; | |
831 | ||
832 | aexpr = gen_trace_for_var (scope, sym); | |
833 | ||
834 | old_chain1 = make_cleanup_free_agent_expr (aexpr); | |
835 | ||
836 | ax_reqs (aexpr, &areqs); | |
837 | if (areqs.flaw != agent_flaw_none) | |
838 | error (_("malformed expression")); | |
839 | ||
840 | if (areqs.min_height < 0) | |
841 | error (_("gdb: Internal error: expression has min height < 0")); | |
842 | if (areqs.max_height > 20) | |
843 | error (_("expression too complicated, try simplifying")); | |
844 | ||
845 | discard_cleanups (old_chain1); | |
846 | add_aexpr (collect, aexpr); | |
847 | ||
848 | /* take care of the registers */ | |
849 | if (areqs.reg_mask_len > 0) | |
850 | { | |
851 | int ndx1, ndx2; | |
852 | ||
853 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) | |
854 | { | |
855 | QUIT; /* allow user to bail out with ^C */ | |
856 | if (areqs.reg_mask[ndx1] != 0) | |
857 | { | |
858 | /* assume chars have 8 bits */ | |
859 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
860 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) | |
861 | /* it's used -- record it */ | |
862 | add_register (collect, | |
863 | ndx1 * 8 + ndx2); | |
864 | } | |
865 | } | |
866 | } | |
867 | } | |
868 | break; | |
c5aa993b | 869 | } |
c906108c SS |
870 | } |
871 | ||
872 | /* Add all locals (or args) symbols to collection list */ | |
873 | static void | |
a6d9a66e UW |
874 | add_local_symbols (struct collection_list *collect, |
875 | struct gdbarch *gdbarch, CORE_ADDR pc, | |
fba45db2 | 876 | long frame_regno, long frame_offset, int type) |
c906108c SS |
877 | { |
878 | struct symbol *sym; | |
c5aa993b | 879 | struct block *block; |
de4f826b DC |
880 | struct dict_iterator iter; |
881 | int count = 0; | |
c906108c SS |
882 | |
883 | block = block_for_pc (pc); | |
884 | while (block != 0) | |
885 | { | |
c5aa993b | 886 | QUIT; /* allow user to bail out with ^C */ |
de4f826b | 887 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 888 | { |
2a2d4dc3 AS |
889 | if (SYMBOL_IS_ARGUMENT (sym) |
890 | ? type == 'A' /* collecting Arguments */ | |
891 | : type == 'L') /* collecting Locals */ | |
c5aa993b | 892 | { |
2a2d4dc3 | 893 | count++; |
a6d9a66e | 894 | collect_symbol (collect, sym, gdbarch, |
0936ad1d | 895 | frame_regno, frame_offset, pc); |
c5aa993b | 896 | } |
c906108c SS |
897 | } |
898 | if (BLOCK_FUNCTION (block)) | |
899 | break; | |
900 | else | |
901 | block = BLOCK_SUPERBLOCK (block); | |
902 | } | |
903 | if (count == 0) | |
8a3fe4f8 | 904 | warning (_("No %s found in scope."), |
d183932d | 905 | type == 'L' ? "locals" : "args"); |
c906108c SS |
906 | } |
907 | ||
908 | /* worker function */ | |
909 | static void | |
fba45db2 | 910 | clear_collection_list (struct collection_list *list) |
c906108c SS |
911 | { |
912 | int ndx; | |
913 | ||
914 | list->next_memrange = 0; | |
915 | for (ndx = 0; ndx < list->next_aexpr_elt; ndx++) | |
916 | { | |
c5aa993b | 917 | free_agent_expr (list->aexpr_list[ndx]); |
c906108c SS |
918 | list->aexpr_list[ndx] = NULL; |
919 | } | |
920 | list->next_aexpr_elt = 0; | |
921 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); | |
922 | } | |
923 | ||
924 | /* reduce a collection list to string form (for gdb protocol) */ | |
925 | static char ** | |
fba45db2 | 926 | stringify_collection_list (struct collection_list *list, char *string) |
c906108c SS |
927 | { |
928 | char temp_buf[2048]; | |
104c1213 | 929 | char tmp2[40]; |
c906108c SS |
930 | int count; |
931 | int ndx = 0; | |
932 | char *(*str_list)[]; | |
933 | char *end; | |
c5aa993b | 934 | long i; |
c906108c SS |
935 | |
936 | count = 1 + list->next_memrange + list->next_aexpr_elt + 1; | |
c5aa993b | 937 | str_list = (char *(*)[]) xmalloc (count * sizeof (char *)); |
c906108c SS |
938 | |
939 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) | |
940 | if (list->regs_mask[i] != 0) /* skip leading zeroes in regs_mask */ | |
941 | break; | |
942 | if (list->regs_mask[i] != 0) /* prepare to send regs_mask to the stub */ | |
943 | { | |
944 | if (info_verbose) | |
945 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
946 | end = temp_buf; | |
c5aa993b | 947 | *end++ = 'R'; |
c906108c SS |
948 | for (; i >= 0; i--) |
949 | { | |
c5aa993b | 950 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
951 | if (info_verbose) |
952 | printf_filtered ("%02X", list->regs_mask[i]); | |
c5aa993b | 953 | sprintf (end, "%02X", list->regs_mask[i]); |
c906108c SS |
954 | end += 2; |
955 | } | |
1b36a34b | 956 | (*str_list)[ndx] = xstrdup (temp_buf); |
c906108c SS |
957 | ndx++; |
958 | } | |
959 | if (info_verbose) | |
960 | printf_filtered ("\n"); | |
961 | if (list->next_memrange > 0 && info_verbose) | |
962 | printf_filtered ("Collecting memranges: \n"); | |
963 | for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++) | |
964 | { | |
965 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 966 | sprintf_vma (tmp2, list->list[i].start); |
c906108c | 967 | if (info_verbose) |
104c1213 JM |
968 | { |
969 | printf_filtered ("(%d, %s, %ld)\n", | |
970 | list->list[i].type, | |
971 | tmp2, | |
972 | (long) (list->list[i].end - list->list[i].start)); | |
973 | } | |
c906108c SS |
974 | if (count + 27 > MAX_AGENT_EXPR_LEN) |
975 | { | |
c5aa993b | 976 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
977 | ndx++; |
978 | count = 0; | |
979 | end = temp_buf; | |
980 | } | |
104c1213 | 981 | |
d1948716 JB |
982 | { |
983 | bfd_signed_vma length = list->list[i].end - list->list[i].start; | |
984 | ||
985 | /* The "%X" conversion specifier expects an unsigned argument, | |
f50e79a4 JB |
986 | so passing -1 (memrange_absolute) to it directly gives you |
987 | "FFFFFFFF" (or more, depending on sizeof (unsigned)). | |
988 | Special-case it. */ | |
989 | if (list->list[i].type == memrange_absolute) | |
d1948716 JB |
990 | sprintf (end, "M-1,%s,%lX", tmp2, (long) length); |
991 | else | |
992 | sprintf (end, "M%X,%s,%lX", list->list[i].type, tmp2, (long) length); | |
993 | } | |
104c1213 | 994 | |
c906108c | 995 | count += strlen (end); |
3ffbc0a5 | 996 | end = temp_buf + count; |
c906108c SS |
997 | } |
998 | ||
999 | for (i = 0; i < list->next_aexpr_elt; i++) | |
1000 | { | |
1001 | QUIT; /* allow user to bail out with ^C */ | |
1002 | if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN) | |
1003 | { | |
c5aa993b | 1004 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1005 | ndx++; |
1006 | count = 0; | |
1007 | end = temp_buf; | |
1008 | } | |
1009 | sprintf (end, "X%08X,", list->aexpr_list[i]->len); | |
1010 | end += 10; /* 'X' + 8 hex digits + ',' */ | |
1011 | count += 10; | |
1012 | ||
d183932d MS |
1013 | end = mem2hex (list->aexpr_list[i]->buf, |
1014 | end, list->aexpr_list[i]->len); | |
c906108c SS |
1015 | count += 2 * list->aexpr_list[i]->len; |
1016 | } | |
1017 | ||
1018 | if (count != 0) | |
1019 | { | |
c5aa993b | 1020 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1021 | ndx++; |
1022 | count = 0; | |
1023 | end = temp_buf; | |
1024 | } | |
1025 | (*str_list)[ndx] = NULL; | |
1026 | ||
1027 | if (ndx == 0) | |
27e06d3e | 1028 | { |
6c761d9c | 1029 | xfree (str_list); |
27e06d3e MS |
1030 | return NULL; |
1031 | } | |
c906108c SS |
1032 | else |
1033 | return *str_list; | |
1034 | } | |
1035 | ||
392a587b | 1036 | static void |
fba45db2 | 1037 | free_actions_list_cleanup_wrapper (void *al) |
392a587b JM |
1038 | { |
1039 | free_actions_list (al); | |
1040 | } | |
1041 | ||
1042 | static void | |
fba45db2 | 1043 | free_actions_list (char **actions_list) |
c906108c SS |
1044 | { |
1045 | int ndx; | |
1046 | ||
1047 | if (actions_list == 0) | |
1048 | return; | |
1049 | ||
1050 | for (ndx = 0; actions_list[ndx]; ndx++) | |
b8c9b27d | 1051 | xfree (actions_list[ndx]); |
c906108c | 1052 | |
b8c9b27d | 1053 | xfree (actions_list); |
c906108c SS |
1054 | } |
1055 | ||
d183932d | 1056 | /* Render all actions into gdb protocol. */ |
c906108c | 1057 | static void |
1042e4c0 | 1058 | encode_actions (struct breakpoint *t, char ***tdp_actions, |
fba45db2 | 1059 | char ***stepping_actions) |
c906108c | 1060 | { |
c5aa993b JM |
1061 | static char tdp_buff[2048], step_buff[2048]; |
1062 | char *action_exp; | |
1063 | struct expression *exp = NULL; | |
c906108c | 1064 | struct action_line *action; |
104c1213 | 1065 | int i; |
f976f6d4 | 1066 | struct value *tempval; |
c5aa993b | 1067 | struct collection_list *collect; |
c906108c SS |
1068 | struct cmd_list_element *cmd; |
1069 | struct agent_expr *aexpr; | |
39d4ef09 AC |
1070 | int frame_reg; |
1071 | LONGEST frame_offset; | |
c906108c SS |
1072 | |
1073 | ||
1074 | clear_collection_list (&tracepoint_list); | |
1075 | clear_collection_list (&stepping_list); | |
1076 | collect = &tracepoint_list; | |
1077 | ||
1078 | *tdp_actions = NULL; | |
1079 | *stepping_actions = NULL; | |
1080 | ||
a6d9a66e | 1081 | gdbarch_virtual_frame_pointer (t->gdbarch, |
1042e4c0 | 1082 | t->loc->address, &frame_reg, &frame_offset); |
c906108c SS |
1083 | |
1084 | for (action = t->actions; action; action = action->next) | |
1085 | { | |
1086 | QUIT; /* allow user to bail out with ^C */ | |
1087 | action_exp = action->action; | |
104c1213 | 1088 | while (isspace ((int) *action_exp)) |
c906108c SS |
1089 | action_exp++; |
1090 | ||
1091 | if (*action_exp == '#') /* comment line */ | |
1092 | return; | |
1093 | ||
1094 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
1095 | if (cmd == 0) | |
8a3fe4f8 | 1096 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 1097 | |
bbaca940 | 1098 | if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c | 1099 | { |
c5aa993b JM |
1100 | do |
1101 | { /* repeat over a comma-separated list */ | |
1102 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 1103 | while (isspace ((int) *action_exp)) |
c5aa993b | 1104 | action_exp++; |
c906108c | 1105 | |
c5aa993b JM |
1106 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1107 | { | |
a6d9a66e | 1108 | for (i = 0; i < gdbarch_num_regs (t->gdbarch); i++) |
c5aa993b JM |
1109 | add_register (collect, i); |
1110 | action_exp = strchr (action_exp, ','); /* more? */ | |
1111 | } | |
1112 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1113 | { | |
1114 | add_local_symbols (collect, | |
a6d9a66e | 1115 | t->gdbarch, |
1042e4c0 | 1116 | t->loc->address, |
c5aa993b JM |
1117 | frame_reg, |
1118 | frame_offset, | |
1119 | 'A'); | |
1120 | action_exp = strchr (action_exp, ','); /* more? */ | |
1121 | } | |
1122 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1123 | { | |
1124 | add_local_symbols (collect, | |
a6d9a66e | 1125 | t->gdbarch, |
1042e4c0 | 1126 | t->loc->address, |
c5aa993b JM |
1127 | frame_reg, |
1128 | frame_offset, | |
1129 | 'L'); | |
1130 | action_exp = strchr (action_exp, ','); /* more? */ | |
1131 | } | |
1132 | else | |
1133 | { | |
1134 | unsigned long addr, len; | |
1135 | struct cleanup *old_chain = NULL; | |
1136 | struct cleanup *old_chain1 = NULL; | |
1137 | struct agent_reqs areqs; | |
1138 | ||
75ac9d7b | 1139 | exp = parse_exp_1 (&action_exp, |
1042e4c0 | 1140 | block_for_pc (t->loc->address), 1); |
74b7792f | 1141 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 1142 | |
c5aa993b JM |
1143 | switch (exp->elts[0].opcode) |
1144 | { | |
1145 | case OP_REGISTER: | |
67f3407f DJ |
1146 | { |
1147 | const char *name = &exp->elts[2].string; | |
1148 | ||
a6d9a66e | 1149 | i = user_reg_map_name_to_regnum (t->gdbarch, |
029a67e4 | 1150 | name, strlen (name)); |
67f3407f DJ |
1151 | if (i == -1) |
1152 | internal_error (__FILE__, __LINE__, | |
1153 | _("Register $%s not available"), | |
1154 | name); | |
1155 | if (info_verbose) | |
1156 | printf_filtered ("OP_REGISTER: "); | |
1157 | add_register (collect, i); | |
1158 | break; | |
1159 | } | |
c5aa993b JM |
1160 | |
1161 | case UNOP_MEMVAL: | |
1162 | /* safe because we know it's a simple expression */ | |
1163 | tempval = evaluate_expression (exp); | |
42ae5230 | 1164 | addr = value_address (tempval); |
c5aa993b | 1165 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); |
f50e79a4 | 1166 | add_memrange (collect, memrange_absolute, addr, len); |
c5aa993b JM |
1167 | break; |
1168 | ||
1169 | case OP_VAR_VALUE: | |
1170 | collect_symbol (collect, | |
1171 | exp->elts[2].symbol, | |
a6d9a66e | 1172 | t->gdbarch, |
c5aa993b | 1173 | frame_reg, |
0936ad1d SS |
1174 | frame_offset, |
1175 | t->loc->address); | |
c5aa993b JM |
1176 | break; |
1177 | ||
1178 | default: /* full-fledged expression */ | |
1042e4c0 | 1179 | aexpr = gen_trace_for_expr (t->loc->address, exp); |
c5aa993b | 1180 | |
f23d52e0 | 1181 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
c5aa993b JM |
1182 | |
1183 | ax_reqs (aexpr, &areqs); | |
1184 | if (areqs.flaw != agent_flaw_none) | |
8a3fe4f8 | 1185 | error (_("malformed expression")); |
c5aa993b JM |
1186 | |
1187 | if (areqs.min_height < 0) | |
8a3fe4f8 | 1188 | error (_("gdb: Internal error: expression has min height < 0")); |
c5aa993b | 1189 | if (areqs.max_height > 20) |
8a3fe4f8 | 1190 | error (_("expression too complicated, try simplifying")); |
c5aa993b JM |
1191 | |
1192 | discard_cleanups (old_chain1); | |
1193 | add_aexpr (collect, aexpr); | |
1194 | ||
1195 | /* take care of the registers */ | |
1196 | if (areqs.reg_mask_len > 0) | |
c906108c | 1197 | { |
c5aa993b JM |
1198 | int ndx1; |
1199 | int ndx2; | |
1200 | ||
1201 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) | |
c906108c | 1202 | { |
c5aa993b JM |
1203 | QUIT; /* allow user to bail out with ^C */ |
1204 | if (areqs.reg_mask[ndx1] != 0) | |
1205 | { | |
1206 | /* assume chars have 8 bits */ | |
1207 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
1208 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) | |
1209 | /* it's used -- record it */ | |
d183932d MS |
1210 | add_register (collect, |
1211 | ndx1 * 8 + ndx2); | |
c5aa993b | 1212 | } |
c906108c SS |
1213 | } |
1214 | } | |
c5aa993b JM |
1215 | break; |
1216 | } /* switch */ | |
1217 | do_cleanups (old_chain); | |
1218 | } /* do */ | |
1219 | } | |
1220 | while (action_exp && *action_exp++ == ','); | |
1221 | } /* if */ | |
bbaca940 | 1222 | else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c SS |
1223 | { |
1224 | collect = &stepping_list; | |
1225 | } | |
bbaca940 | 1226 | else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand)) |
c906108c SS |
1227 | { |
1228 | if (collect == &stepping_list) /* end stepping actions */ | |
1229 | collect = &tracepoint_list; | |
1230 | else | |
c5aa993b | 1231 | break; /* end tracepoint actions */ |
c906108c | 1232 | } |
c5aa993b JM |
1233 | } /* for */ |
1234 | memrange_sortmerge (&tracepoint_list); | |
1235 | memrange_sortmerge (&stepping_list); | |
c906108c | 1236 | |
d183932d MS |
1237 | *tdp_actions = stringify_collection_list (&tracepoint_list, |
1238 | tdp_buff); | |
1239 | *stepping_actions = stringify_collection_list (&stepping_list, | |
1240 | step_buff); | |
c906108c SS |
1241 | } |
1242 | ||
1243 | static void | |
fba45db2 | 1244 | add_aexpr (struct collection_list *collect, struct agent_expr *aexpr) |
c906108c SS |
1245 | { |
1246 | if (collect->next_aexpr_elt >= collect->aexpr_listsize) | |
1247 | { | |
1248 | collect->aexpr_list = | |
1249 | xrealloc (collect->aexpr_list, | |
c5aa993b | 1250 | 2 * collect->aexpr_listsize * sizeof (struct agent_expr *)); |
c906108c SS |
1251 | collect->aexpr_listsize *= 2; |
1252 | } | |
1253 | collect->aexpr_list[collect->next_aexpr_elt] = aexpr; | |
1254 | collect->next_aexpr_elt++; | |
1255 | } | |
1256 | ||
6d820c5c DJ |
1257 | static char *target_buf; |
1258 | static long target_buf_size; | |
c906108c SS |
1259 | |
1260 | /* Set "transparent" memory ranges | |
1261 | ||
1262 | Allow trace mechanism to treat text-like sections | |
1263 | (and perhaps all read-only sections) transparently, | |
1264 | i.e. don't reject memory requests from these address ranges | |
1265 | just because they haven't been collected. */ | |
1266 | ||
1267 | static void | |
1268 | remote_set_transparent_ranges (void) | |
1269 | { | |
c906108c SS |
1270 | asection *s; |
1271 | bfd_size_type size; | |
1272 | bfd_vma lma; | |
1273 | int anysecs = 0; | |
1274 | ||
1275 | if (!exec_bfd) | |
d183932d | 1276 | return; /* No information to give. */ |
c906108c SS |
1277 | |
1278 | strcpy (target_buf, "QTro"); | |
1279 | for (s = exec_bfd->sections; s; s = s->next) | |
1280 | { | |
104c1213 | 1281 | char tmp1[40], tmp2[40]; |
c906108c | 1282 | |
c5aa993b JM |
1283 | if ((s->flags & SEC_LOAD) == 0 || |
1284 | /* (s->flags & SEC_CODE) == 0 || */ | |
c906108c SS |
1285 | (s->flags & SEC_READONLY) == 0) |
1286 | continue; | |
1287 | ||
1288 | anysecs = 1; | |
c5aa993b | 1289 | lma = s->lma; |
2c500098 | 1290 | size = bfd_get_section_size (s); |
104c1213 JM |
1291 | sprintf_vma (tmp1, lma); |
1292 | sprintf_vma (tmp2, lma + size); | |
1293 | sprintf (target_buf + strlen (target_buf), | |
1294 | ":%s,%s", tmp1, tmp2); | |
c906108c SS |
1295 | } |
1296 | if (anysecs) | |
1297 | { | |
1298 | putpkt (target_buf); | |
6d820c5c | 1299 | getpkt (&target_buf, &target_buf_size, 0); |
c906108c SS |
1300 | } |
1301 | } | |
1302 | ||
1303 | /* tstart command: | |
c5aa993b | 1304 | |
c906108c SS |
1305 | Tell target to clear any previous trace experiment. |
1306 | Walk the list of tracepoints, and send them (and their actions) | |
1307 | to the target. If no errors, | |
1308 | Tell target to start a new trace experiment. */ | |
1309 | ||
1042e4c0 SS |
1310 | void download_tracepoint (struct breakpoint *t); |
1311 | ||
c906108c | 1312 | static void |
fba45db2 | 1313 | trace_start_command (char *args, int from_tty) |
d183932d | 1314 | { |
1042e4c0 SS |
1315 | VEC(breakpoint_p) *tp_vec = NULL; |
1316 | int ix; | |
1317 | struct breakpoint *t; | |
c906108c | 1318 | |
d183932d | 1319 | dont_repeat (); /* Like "run", dangerous to repeat accidentally. */ |
c5aa993b | 1320 | |
c906108c SS |
1321 | if (target_is_remote ()) |
1322 | { | |
1323 | putpkt ("QTinit"); | |
6d820c5c | 1324 | remote_get_noisy_reply (&target_buf, &target_buf_size); |
c906108c | 1325 | if (strcmp (target_buf, "OK")) |
8a3fe4f8 | 1326 | error (_("Target does not support this command.")); |
c906108c | 1327 | |
1042e4c0 SS |
1328 | tp_vec = all_tracepoints (); |
1329 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
1330 | { | |
1331 | download_tracepoint (t); | |
1332 | } | |
1333 | VEC_free (breakpoint_p, tp_vec); | |
c5aa993b | 1334 | |
d183932d | 1335 | /* Tell target to treat text-like sections as transparent. */ |
c906108c | 1336 | remote_set_transparent_ranges (); |
d183932d | 1337 | /* Now insert traps and begin collecting data. */ |
c906108c | 1338 | putpkt ("QTStart"); |
6d820c5c | 1339 | remote_get_noisy_reply (&target_buf, &target_buf_size); |
c906108c | 1340 | if (strcmp (target_buf, "OK")) |
8a3fe4f8 | 1341 | error (_("Bogus reply from target: %s"), target_buf); |
d183932d | 1342 | set_traceframe_num (-1); /* All old traceframes invalidated. */ |
c906108c | 1343 | set_tracepoint_num (-1); |
fb14de7b | 1344 | set_traceframe_context (NULL); |
c906108c | 1345 | trace_running_p = 1; |
9a4105ab AC |
1346 | if (deprecated_trace_start_stop_hook) |
1347 | deprecated_trace_start_stop_hook (1, from_tty); | |
c5aa993b | 1348 | |
c906108c SS |
1349 | } |
1350 | else | |
8a3fe4f8 | 1351 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1352 | } |
1353 | ||
1042e4c0 SS |
1354 | /* Send the definition of a single tracepoint to the target. */ |
1355 | ||
1356 | void | |
1357 | download_tracepoint (struct breakpoint *t) | |
1358 | { | |
1359 | char tmp[40]; | |
1360 | char buf[2048]; | |
1361 | char **tdp_actions; | |
1362 | char **stepping_actions; | |
1363 | int ndx; | |
1364 | struct cleanup *old_chain = NULL; | |
782b2b07 SS |
1365 | struct agent_expr *aexpr; |
1366 | struct cleanup *aexpr_chain = NULL; | |
1042e4c0 SS |
1367 | |
1368 | sprintf_vma (tmp, (t->loc ? t->loc->address : 0)); | |
1369 | sprintf (buf, "QTDP:%x:%s:%c:%lx:%x", t->number, | |
1370 | tmp, /* address */ | |
1371 | (t->enable_state == bp_enabled ? 'E' : 'D'), | |
1372 | t->step_count, t->pass_count); | |
782b2b07 SS |
1373 | /* If the tracepoint has a conditional, make it into an agent |
1374 | expression and append to the definition. */ | |
1375 | if (t->loc->cond) | |
1376 | { | |
1377 | /* Only test support at download time, we may not know target | |
1378 | capabilities at definition time. */ | |
1379 | if (remote_supports_cond_tracepoints ()) | |
1380 | { | |
1381 | aexpr = gen_eval_for_expr (t->loc->address, t->loc->cond); | |
1382 | aexpr_chain = make_cleanup_free_agent_expr (aexpr); | |
1383 | sprintf (buf + strlen (buf), ":X%x,", aexpr->len); | |
1384 | mem2hex (aexpr->buf, buf + strlen (buf), aexpr->len); | |
1385 | do_cleanups (aexpr_chain); | |
1386 | } | |
1387 | else | |
1388 | warning (_("Target does not support conditional tracepoints, ignoring tp %d cond"), t->number); | |
1389 | } | |
1042e4c0 SS |
1390 | |
1391 | if (t->actions) | |
1392 | strcat (buf, "-"); | |
1393 | putpkt (buf); | |
1394 | remote_get_noisy_reply (&target_buf, &target_buf_size); | |
1395 | if (strcmp (target_buf, "OK")) | |
1396 | error (_("Target does not support tracepoints.")); | |
1397 | ||
1398 | if (!t->actions) | |
1399 | return; | |
1400 | ||
1401 | encode_actions (t, &tdp_actions, &stepping_actions); | |
1402 | old_chain = make_cleanup (free_actions_list_cleanup_wrapper, | |
1403 | tdp_actions); | |
1404 | (void) make_cleanup (free_actions_list_cleanup_wrapper, stepping_actions); | |
1405 | ||
1406 | /* do_single_steps (t); */ | |
1407 | if (tdp_actions) | |
1408 | { | |
1409 | for (ndx = 0; tdp_actions[ndx]; ndx++) | |
1410 | { | |
1411 | QUIT; /* allow user to bail out with ^C */ | |
1412 | sprintf (buf, "QTDP:-%x:%s:%s%c", | |
1413 | t->number, tmp, /* address */ | |
1414 | tdp_actions[ndx], | |
1415 | ((tdp_actions[ndx + 1] || stepping_actions) | |
1416 | ? '-' : 0)); | |
1417 | putpkt (buf); | |
1418 | remote_get_noisy_reply (&target_buf, | |
1419 | &target_buf_size); | |
1420 | if (strcmp (target_buf, "OK")) | |
1421 | error (_("Error on target while setting tracepoints.")); | |
1422 | } | |
1423 | } | |
1424 | if (stepping_actions) | |
1425 | { | |
1426 | for (ndx = 0; stepping_actions[ndx]; ndx++) | |
1427 | { | |
1428 | QUIT; /* allow user to bail out with ^C */ | |
1429 | sprintf (buf, "QTDP:-%x:%s:%s%s%s", | |
1430 | t->number, tmp, /* address */ | |
1431 | ((ndx == 0) ? "S" : ""), | |
1432 | stepping_actions[ndx], | |
1433 | (stepping_actions[ndx + 1] ? "-" : "")); | |
1434 | putpkt (buf); | |
1435 | remote_get_noisy_reply (&target_buf, | |
1436 | &target_buf_size); | |
1437 | if (strcmp (target_buf, "OK")) | |
1438 | error (_("Error on target while setting tracepoints.")); | |
1439 | } | |
1440 | } | |
1441 | do_cleanups (old_chain); | |
1442 | } | |
1443 | ||
c906108c SS |
1444 | /* tstop command */ |
1445 | static void | |
fba45db2 | 1446 | trace_stop_command (char *args, int from_tty) |
d183932d | 1447 | { |
c906108c SS |
1448 | if (target_is_remote ()) |
1449 | { | |
1450 | putpkt ("QTStop"); | |
6d820c5c | 1451 | remote_get_noisy_reply (&target_buf, &target_buf_size); |
c906108c | 1452 | if (strcmp (target_buf, "OK")) |
8a3fe4f8 | 1453 | error (_("Bogus reply from target: %s"), target_buf); |
c906108c | 1454 | trace_running_p = 0; |
9a4105ab AC |
1455 | if (deprecated_trace_start_stop_hook) |
1456 | deprecated_trace_start_stop_hook (0, from_tty); | |
c906108c SS |
1457 | } |
1458 | else | |
8a3fe4f8 | 1459 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1460 | } |
1461 | ||
1462 | unsigned long trace_running_p; | |
1463 | ||
1464 | /* tstatus command */ | |
1465 | static void | |
fba45db2 | 1466 | trace_status_command (char *args, int from_tty) |
d183932d | 1467 | { |
c906108c SS |
1468 | if (target_is_remote ()) |
1469 | { | |
1470 | putpkt ("qTStatus"); | |
6d820c5c | 1471 | remote_get_noisy_reply (&target_buf, &target_buf_size); |
c906108c SS |
1472 | |
1473 | if (target_buf[0] != 'T' || | |
1474 | (target_buf[1] != '0' && target_buf[1] != '1')) | |
8a3fe4f8 | 1475 | error (_("Bogus reply from target: %s"), target_buf); |
c906108c SS |
1476 | |
1477 | /* exported for use by the GUI */ | |
1478 | trace_running_p = (target_buf[1] == '1'); | |
1479 | } | |
1480 | else | |
8a3fe4f8 | 1481 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1482 | } |
1483 | ||
d183932d | 1484 | /* Worker function for the various flavors of the tfind command. */ |
c906108c | 1485 | static void |
6d820c5c DJ |
1486 | finish_tfind_command (char **msg, |
1487 | long *sizeof_msg, | |
c2d11a7d | 1488 | int from_tty) |
c906108c SS |
1489 | { |
1490 | int target_frameno = -1, target_tracept = -1; | |
fb14de7b | 1491 | struct frame_id old_frame_id; |
c906108c SS |
1492 | char *reply; |
1493 | ||
fb14de7b | 1494 | old_frame_id = get_frame_id (get_current_frame ()); |
c906108c | 1495 | |
6d820c5c | 1496 | putpkt (*msg); |
c2d11a7d | 1497 | reply = remote_get_noisy_reply (msg, sizeof_msg); |
c906108c SS |
1498 | |
1499 | while (reply && *reply) | |
c5aa993b JM |
1500 | switch (*reply) |
1501 | { | |
1502 | case 'F': | |
1503 | if ((target_frameno = (int) strtol (++reply, &reply, 16)) == -1) | |
1504 | { | |
1505 | /* A request for a non-existant trace frame has failed. | |
1506 | Our response will be different, depending on FROM_TTY: | |
1507 | ||
1508 | If FROM_TTY is true, meaning that this command was | |
1509 | typed interactively by the user, then give an error | |
1510 | and DO NOT change the state of traceframe_number etc. | |
1511 | ||
1512 | However if FROM_TTY is false, meaning that we're either | |
1513 | in a script, a loop, or a user-defined command, then | |
1514 | DON'T give an error, but DO change the state of | |
1515 | traceframe_number etc. to invalid. | |
1516 | ||
1517 | The rationalle is that if you typed the command, you | |
1518 | might just have committed a typo or something, and you'd | |
1519 | like to NOT lose your current debugging state. However | |
1520 | if you're in a user-defined command or especially in a | |
1521 | loop, then you need a way to detect that the command | |
1522 | failed WITHOUT aborting. This allows you to write | |
1523 | scripts that search thru the trace buffer until the end, | |
1524 | and then continue on to do something else. */ | |
1525 | ||
1526 | if (from_tty) | |
8a3fe4f8 | 1527 | error (_("Target failed to find requested trace frame.")); |
c5aa993b JM |
1528 | else |
1529 | { | |
1530 | if (info_verbose) | |
1531 | printf_filtered ("End of trace buffer.\n"); | |
d183932d MS |
1532 | /* The following will not recurse, since it's |
1533 | special-cased. */ | |
c5aa993b | 1534 | trace_find_command ("-1", from_tty); |
d183932d MS |
1535 | reply = NULL; /* Break out of loop |
1536 | (avoid recursive nonsense). */ | |
c5aa993b JM |
1537 | } |
1538 | } | |
1539 | break; | |
1540 | case 'T': | |
1541 | if ((target_tracept = (int) strtol (++reply, &reply, 16)) == -1) | |
8a3fe4f8 | 1542 | error (_("Target failed to find requested trace frame.")); |
c5aa993b JM |
1543 | break; |
1544 | case 'O': /* "OK"? */ | |
1545 | if (reply[1] == 'K' && reply[2] == '\0') | |
1546 | reply += 2; | |
1547 | else | |
8a3fe4f8 | 1548 | error (_("Bogus reply from target: %s"), reply); |
c5aa993b JM |
1549 | break; |
1550 | default: | |
8a3fe4f8 | 1551 | error (_("Bogus reply from target: %s"), reply); |
c5aa993b | 1552 | } |
c906108c | 1553 | |
35f196d9 | 1554 | reinit_frame_cache (); |
c906108c | 1555 | registers_changed (); |
c906108c SS |
1556 | set_traceframe_num (target_frameno); |
1557 | set_tracepoint_num (target_tracept); | |
1558 | if (target_frameno == -1) | |
fb14de7b | 1559 | set_traceframe_context (NULL); |
c906108c | 1560 | else |
fb14de7b | 1561 | set_traceframe_context (get_current_frame ()); |
c906108c SS |
1562 | |
1563 | if (from_tty) | |
1564 | { | |
0faf0076 | 1565 | enum print_what print_what; |
c906108c SS |
1566 | |
1567 | /* NOTE: in immitation of the step command, try to determine | |
d183932d MS |
1568 | whether we have made a transition from one function to |
1569 | another. If so, we'll print the "stack frame" (ie. the new | |
1570 | function and it's arguments) -- otherwise we'll just show the | |
fb14de7b UW |
1571 | new source line. */ |
1572 | ||
1573 | if (frame_id_eq (old_frame_id, | |
1574 | get_frame_id (get_current_frame ()))) | |
0faf0076 | 1575 | print_what = SRC_LINE; |
c906108c | 1576 | else |
0faf0076 | 1577 | print_what = SRC_AND_LOC; |
c906108c | 1578 | |
b04f3ab4 | 1579 | print_stack_frame (get_selected_frame (NULL), 1, print_what); |
c906108c SS |
1580 | do_displays (); |
1581 | } | |
1582 | } | |
1583 | ||
1584 | /* trace_find_command takes a trace frame number n, | |
1585 | sends "QTFrame:<n>" to the target, | |
1586 | and accepts a reply that may contain several optional pieces | |
1587 | of information: a frame number, a tracepoint number, and an | |
1588 | indication of whether this is a trap frame or a stepping frame. | |
1589 | ||
1590 | The minimal response is just "OK" (which indicates that the | |
1591 | target does not give us a frame number or a tracepoint number). | |
1592 | Instead of that, the target may send us a string containing | |
1593 | any combination of: | |
c5aa993b JM |
1594 | F<hexnum> (gives the selected frame number) |
1595 | T<hexnum> (gives the selected tracepoint number) | |
1596 | */ | |
c906108c SS |
1597 | |
1598 | /* tfind command */ | |
1599 | static void | |
fba45db2 | 1600 | trace_find_command (char *args, int from_tty) |
d183932d | 1601 | { /* this should only be called with a numeric argument */ |
c906108c | 1602 | int frameno = -1; |
c906108c SS |
1603 | |
1604 | if (target_is_remote ()) | |
1605 | { | |
9a4105ab AC |
1606 | if (deprecated_trace_find_hook) |
1607 | deprecated_trace_find_hook (args, from_tty); | |
c5aa993b | 1608 | |
c906108c | 1609 | if (args == 0 || *args == 0) |
d183932d | 1610 | { /* TFIND with no args means find NEXT trace frame. */ |
c906108c SS |
1611 | if (traceframe_number == -1) |
1612 | frameno = 0; /* "next" is first one */ | |
1613 | else | |
1614 | frameno = traceframe_number + 1; | |
1615 | } | |
1616 | else if (0 == strcmp (args, "-")) | |
1617 | { | |
1618 | if (traceframe_number == -1) | |
8a3fe4f8 | 1619 | error (_("not debugging trace buffer")); |
c906108c | 1620 | else if (from_tty && traceframe_number == 0) |
8a3fe4f8 | 1621 | error (_("already at start of trace buffer")); |
c906108c SS |
1622 | |
1623 | frameno = traceframe_number - 1; | |
1624 | } | |
1625 | else | |
bb518678 | 1626 | frameno = parse_and_eval_long (args); |
c906108c SS |
1627 | |
1628 | if (frameno < -1) | |
8a3fe4f8 | 1629 | error (_("invalid input (%d is less than zero)"), frameno); |
c906108c SS |
1630 | |
1631 | sprintf (target_buf, "QTFrame:%x", frameno); | |
6d820c5c | 1632 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1633 | } |
1634 | else | |
8a3fe4f8 | 1635 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1636 | } |
1637 | ||
1638 | /* tfind end */ | |
1639 | static void | |
fba45db2 | 1640 | trace_find_end_command (char *args, int from_tty) |
c906108c SS |
1641 | { |
1642 | trace_find_command ("-1", from_tty); | |
1643 | } | |
1644 | ||
1645 | /* tfind none */ | |
1646 | static void | |
fba45db2 | 1647 | trace_find_none_command (char *args, int from_tty) |
c906108c SS |
1648 | { |
1649 | trace_find_command ("-1", from_tty); | |
1650 | } | |
1651 | ||
1652 | /* tfind start */ | |
1653 | static void | |
fba45db2 | 1654 | trace_find_start_command (char *args, int from_tty) |
c906108c SS |
1655 | { |
1656 | trace_find_command ("0", from_tty); | |
1657 | } | |
1658 | ||
1659 | /* tfind pc command */ | |
1660 | static void | |
fba45db2 | 1661 | trace_find_pc_command (char *args, int from_tty) |
d183932d | 1662 | { |
c906108c | 1663 | CORE_ADDR pc; |
104c1213 | 1664 | char tmp[40]; |
c906108c SS |
1665 | |
1666 | if (target_is_remote ()) | |
1667 | { | |
1668 | if (args == 0 || *args == 0) | |
fb14de7b | 1669 | pc = regcache_read_pc (get_current_regcache ()); |
c906108c SS |
1670 | else |
1671 | pc = parse_and_eval_address (args); | |
1672 | ||
104c1213 JM |
1673 | sprintf_vma (tmp, pc); |
1674 | sprintf (target_buf, "QTFrame:pc:%s", tmp); | |
6d820c5c | 1675 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1676 | } |
1677 | else | |
8a3fe4f8 | 1678 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1679 | } |
1680 | ||
1681 | /* tfind tracepoint command */ | |
1682 | static void | |
fba45db2 | 1683 | trace_find_tracepoint_command (char *args, int from_tty) |
d183932d | 1684 | { |
c906108c | 1685 | int tdp; |
c906108c SS |
1686 | |
1687 | if (target_is_remote ()) | |
1688 | { | |
1689 | if (args == 0 || *args == 0) | |
3db26b01 JB |
1690 | { |
1691 | if (tracepoint_number == -1) | |
8a3fe4f8 | 1692 | error (_("No current tracepoint -- please supply an argument.")); |
3db26b01 JB |
1693 | else |
1694 | tdp = tracepoint_number; /* default is current TDP */ | |
1695 | } | |
c906108c | 1696 | else |
0e828ed1 | 1697 | tdp = parse_and_eval_long (args); |
c906108c SS |
1698 | |
1699 | sprintf (target_buf, "QTFrame:tdp:%x", tdp); | |
6d820c5c | 1700 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1701 | } |
1702 | else | |
8a3fe4f8 | 1703 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1704 | } |
1705 | ||
1706 | /* TFIND LINE command: | |
c5aa993b | 1707 | |
c906108c | 1708 | This command will take a sourceline for argument, just like BREAK |
d183932d | 1709 | or TRACE (ie. anything that "decode_line_1" can handle). |
c5aa993b | 1710 | |
c906108c SS |
1711 | With no argument, this command will find the next trace frame |
1712 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
1713 | ||
1714 | static void | |
fba45db2 | 1715 | trace_find_line_command (char *args, int from_tty) |
d183932d | 1716 | { |
c906108c SS |
1717 | static CORE_ADDR start_pc, end_pc; |
1718 | struct symtabs_and_lines sals; | |
1719 | struct symtab_and_line sal; | |
c906108c | 1720 | struct cleanup *old_chain; |
104c1213 | 1721 | char startpc_str[40], endpc_str[40]; |
c906108c SS |
1722 | |
1723 | if (target_is_remote ()) | |
1724 | { | |
1725 | if (args == 0 || *args == 0) | |
1726 | { | |
bdd78e62 | 1727 | sal = find_pc_line (get_frame_pc (get_current_frame ()), 0); |
c906108c SS |
1728 | sals.nelts = 1; |
1729 | sals.sals = (struct symtab_and_line *) | |
1730 | xmalloc (sizeof (struct symtab_and_line)); | |
1731 | sals.sals[0] = sal; | |
1732 | } | |
1733 | else | |
1734 | { | |
1735 | sals = decode_line_spec (args, 1); | |
c5aa993b | 1736 | sal = sals.sals[0]; |
c906108c SS |
1737 | } |
1738 | ||
b8c9b27d | 1739 | old_chain = make_cleanup (xfree, sals.sals); |
c906108c SS |
1740 | if (sal.symtab == 0) |
1741 | { | |
5af949e3 UW |
1742 | struct gdbarch *gdbarch = get_current_arch (); |
1743 | ||
c906108c SS |
1744 | printf_filtered ("TFIND: No line number information available"); |
1745 | if (sal.pc != 0) | |
1746 | { | |
d183932d MS |
1747 | /* This is useful for "info line *0x7f34". If we can't |
1748 | tell the user about a source line, at least let them | |
1749 | have the symbolic address. */ | |
c906108c SS |
1750 | printf_filtered (" for address "); |
1751 | wrap_here (" "); | |
5af949e3 | 1752 | print_address (gdbarch, sal.pc, gdb_stdout); |
c906108c SS |
1753 | printf_filtered (";\n -- will attempt to find by PC. \n"); |
1754 | } | |
1755 | else | |
1756 | { | |
1757 | printf_filtered (".\n"); | |
d183932d | 1758 | return; /* No line, no PC; what can we do? */ |
c906108c SS |
1759 | } |
1760 | } | |
1761 | else if (sal.line > 0 | |
1762 | && find_line_pc_range (sal, &start_pc, &end_pc)) | |
1763 | { | |
5af949e3 UW |
1764 | struct gdbarch *gdbarch = get_objfile_arch (sal.symtab->objfile); |
1765 | ||
c906108c SS |
1766 | if (start_pc == end_pc) |
1767 | { | |
1768 | printf_filtered ("Line %d of \"%s\"", | |
1769 | sal.line, sal.symtab->filename); | |
1770 | wrap_here (" "); | |
1771 | printf_filtered (" is at address "); | |
5af949e3 | 1772 | print_address (gdbarch, start_pc, gdb_stdout); |
c906108c SS |
1773 | wrap_here (" "); |
1774 | printf_filtered (" but contains no code.\n"); | |
1775 | sal = find_pc_line (start_pc, 0); | |
1776 | if (sal.line > 0 && | |
1777 | find_line_pc_range (sal, &start_pc, &end_pc) && | |
1778 | start_pc != end_pc) | |
1779 | printf_filtered ("Attempting to find line %d instead.\n", | |
1780 | sal.line); | |
1781 | else | |
8a3fe4f8 | 1782 | error (_("Cannot find a good line.")); |
c906108c SS |
1783 | } |
1784 | } | |
1785 | else | |
1786 | /* Is there any case in which we get here, and have an address | |
d183932d MS |
1787 | which the user would want to see? If we have debugging |
1788 | symbols and no line numbers? */ | |
8a3fe4f8 | 1789 | error (_("Line number %d is out of range for \"%s\"."), |
c906108c SS |
1790 | sal.line, sal.symtab->filename); |
1791 | ||
104c1213 JM |
1792 | sprintf_vma (startpc_str, start_pc); |
1793 | sprintf_vma (endpc_str, end_pc - 1); | |
d183932d MS |
1794 | /* Find within range of stated line. */ |
1795 | if (args && *args) | |
1796 | sprintf (target_buf, "QTFrame:range:%s:%s", | |
1797 | startpc_str, endpc_str); | |
1798 | /* Find OUTSIDE OF range of CURRENT line. */ | |
1799 | else | |
1800 | sprintf (target_buf, "QTFrame:outside:%s:%s", | |
1801 | startpc_str, endpc_str); | |
6d820c5c | 1802 | finish_tfind_command (&target_buf, &target_buf_size, |
d183932d | 1803 | from_tty); |
c906108c SS |
1804 | do_cleanups (old_chain); |
1805 | } | |
1806 | else | |
8a3fe4f8 | 1807 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1808 | } |
1809 | ||
1810 | /* tfind range command */ | |
1811 | static void | |
fba45db2 | 1812 | trace_find_range_command (char *args, int from_tty) |
104c1213 | 1813 | { |
c906108c | 1814 | static CORE_ADDR start, stop; |
104c1213 | 1815 | char start_str[40], stop_str[40]; |
c906108c SS |
1816 | char *tmp; |
1817 | ||
1818 | if (target_is_remote ()) | |
1819 | { | |
1820 | if (args == 0 || *args == 0) | |
d183932d | 1821 | { /* XXX FIXME: what should default behavior be? */ |
c906108c SS |
1822 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); |
1823 | return; | |
1824 | } | |
1825 | ||
c5aa993b | 1826 | if (0 != (tmp = strchr (args, ','))) |
c906108c SS |
1827 | { |
1828 | *tmp++ = '\0'; /* terminate start address */ | |
104c1213 | 1829 | while (isspace ((int) *tmp)) |
c906108c SS |
1830 | tmp++; |
1831 | start = parse_and_eval_address (args); | |
c5aa993b | 1832 | stop = parse_and_eval_address (tmp); |
c906108c SS |
1833 | } |
1834 | else | |
c5aa993b | 1835 | { /* no explicit end address? */ |
c906108c | 1836 | start = parse_and_eval_address (args); |
c5aa993b | 1837 | stop = start + 1; /* ??? */ |
c906108c SS |
1838 | } |
1839 | ||
104c1213 JM |
1840 | sprintf_vma (start_str, start); |
1841 | sprintf_vma (stop_str, stop); | |
1842 | sprintf (target_buf, "QTFrame:range:%s:%s", start_str, stop_str); | |
6d820c5c | 1843 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1844 | } |
1845 | else | |
8a3fe4f8 | 1846 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1847 | } |
1848 | ||
1849 | /* tfind outside command */ | |
1850 | static void | |
fba45db2 | 1851 | trace_find_outside_command (char *args, int from_tty) |
104c1213 | 1852 | { |
c906108c | 1853 | CORE_ADDR start, stop; |
104c1213 | 1854 | char start_str[40], stop_str[40]; |
c906108c SS |
1855 | char *tmp; |
1856 | ||
1857 | if (target_is_remote ()) | |
1858 | { | |
1859 | if (args == 0 || *args == 0) | |
d183932d | 1860 | { /* XXX FIXME: what should default behavior be? */ |
c906108c SS |
1861 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); |
1862 | return; | |
1863 | } | |
1864 | ||
c5aa993b | 1865 | if (0 != (tmp = strchr (args, ','))) |
c906108c SS |
1866 | { |
1867 | *tmp++ = '\0'; /* terminate start address */ | |
104c1213 | 1868 | while (isspace ((int) *tmp)) |
c906108c SS |
1869 | tmp++; |
1870 | start = parse_and_eval_address (args); | |
c5aa993b | 1871 | stop = parse_and_eval_address (tmp); |
c906108c SS |
1872 | } |
1873 | else | |
c5aa993b | 1874 | { /* no explicit end address? */ |
c906108c | 1875 | start = parse_and_eval_address (args); |
c5aa993b | 1876 | stop = start + 1; /* ??? */ |
c906108c SS |
1877 | } |
1878 | ||
104c1213 JM |
1879 | sprintf_vma (start_str, start); |
1880 | sprintf_vma (stop_str, stop); | |
1881 | sprintf (target_buf, "QTFrame:outside:%s:%s", start_str, stop_str); | |
6d820c5c | 1882 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1883 | } |
1884 | else | |
8a3fe4f8 | 1885 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1886 | } |
1887 | ||
c906108c SS |
1888 | /* info scope command: list the locals for a scope. */ |
1889 | static void | |
fba45db2 | 1890 | scope_info (char *args, int from_tty) |
c906108c | 1891 | { |
c906108c SS |
1892 | struct symtabs_and_lines sals; |
1893 | struct symbol *sym; | |
1894 | struct minimal_symbol *msym; | |
1895 | struct block *block; | |
1896 | char **canonical, *symname, *save_args = args; | |
de4f826b DC |
1897 | struct dict_iterator iter; |
1898 | int j, count = 0; | |
768a979c UW |
1899 | struct gdbarch *gdbarch; |
1900 | int regno; | |
c906108c SS |
1901 | |
1902 | if (args == 0 || *args == 0) | |
8a3fe4f8 | 1903 | error (_("requires an argument (function, line or *addr) to define a scope")); |
c906108c | 1904 | |
68219205 | 1905 | sals = decode_line_1 (&args, 1, NULL, 0, &canonical, NULL); |
c906108c | 1906 | if (sals.nelts == 0) |
450bd37b | 1907 | return; /* presumably decode_line_1 has already warned */ |
c906108c SS |
1908 | |
1909 | /* Resolve line numbers to PC */ | |
1910 | resolve_sal_pc (&sals.sals[0]); | |
1911 | block = block_for_pc (sals.sals[0].pc); | |
1912 | ||
1913 | while (block != 0) | |
1914 | { | |
c5aa993b | 1915 | QUIT; /* allow user to bail out with ^C */ |
de4f826b | 1916 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 1917 | { |
c5aa993b | 1918 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
1919 | if (count == 0) |
1920 | printf_filtered ("Scope for %s:\n", save_args); | |
1921 | count++; | |
e88c90f2 | 1922 | |
3567439c | 1923 | symname = SYMBOL_PRINT_NAME (sym); |
c906108c | 1924 | if (symname == NULL || *symname == '\0') |
c5aa993b | 1925 | continue; /* probably botched, certainly useless */ |
c906108c | 1926 | |
768a979c UW |
1927 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
1928 | ||
c906108c | 1929 | printf_filtered ("Symbol %s is ", symname); |
c5aa993b JM |
1930 | switch (SYMBOL_CLASS (sym)) |
1931 | { | |
1932 | default: | |
1933 | case LOC_UNDEF: /* messed up symbol? */ | |
1934 | printf_filtered ("a bogus symbol, class %d.\n", | |
1935 | SYMBOL_CLASS (sym)); | |
1936 | count--; /* don't count this one */ | |
1937 | continue; | |
1938 | case LOC_CONST: | |
104c1213 | 1939 | printf_filtered ("a constant with value %ld (0x%lx)", |
c5aa993b JM |
1940 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); |
1941 | break; | |
1942 | case LOC_CONST_BYTES: | |
1943 | printf_filtered ("constant bytes: "); | |
1944 | if (SYMBOL_TYPE (sym)) | |
1945 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) | |
1946 | fprintf_filtered (gdb_stdout, " %02x", | |
1947 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); | |
1948 | break; | |
1949 | case LOC_STATIC: | |
1950 | printf_filtered ("in static storage at address "); | |
5af949e3 UW |
1951 | printf_filtered ("%s", paddress (gdbarch, |
1952 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
1953 | break; |
1954 | case LOC_REGISTER: | |
768a979c UW |
1955 | /* GDBARCH is the architecture associated with the objfile |
1956 | the symbol is defined in; the target architecture may be | |
1957 | different, and may provide additional registers. However, | |
1958 | we do not know the target architecture at this point. | |
1959 | We assume the objfile architecture will contain all the | |
1960 | standard registers that occur in debug info in that | |
1961 | objfile. */ | |
1962 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
1963 | ||
2a2d4dc3 AS |
1964 | if (SYMBOL_IS_ARGUMENT (sym)) |
1965 | printf_filtered ("an argument in register $%s", | |
768a979c | 1966 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
1967 | else |
1968 | printf_filtered ("a local variable in register $%s", | |
768a979c | 1969 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
1970 | break; |
1971 | case LOC_ARG: | |
c5aa993b JM |
1972 | printf_filtered ("an argument at stack/frame offset %ld", |
1973 | SYMBOL_VALUE (sym)); | |
1974 | break; | |
1975 | case LOC_LOCAL: | |
1976 | printf_filtered ("a local variable at frame offset %ld", | |
1977 | SYMBOL_VALUE (sym)); | |
1978 | break; | |
1979 | case LOC_REF_ARG: | |
1980 | printf_filtered ("a reference argument at offset %ld", | |
1981 | SYMBOL_VALUE (sym)); | |
1982 | break; | |
c5aa993b | 1983 | case LOC_REGPARM_ADDR: |
768a979c UW |
1984 | /* Note comment at LOC_REGISTER. */ |
1985 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
c5aa993b | 1986 | printf_filtered ("the address of an argument, in register $%s", |
768a979c | 1987 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
1988 | break; |
1989 | case LOC_TYPEDEF: | |
1990 | printf_filtered ("a typedef.\n"); | |
1991 | continue; | |
1992 | case LOC_LABEL: | |
1993 | printf_filtered ("a label at address "); | |
5af949e3 UW |
1994 | printf_filtered ("%s", paddress (gdbarch, |
1995 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
1996 | break; |
1997 | case LOC_BLOCK: | |
1998 | printf_filtered ("a function at address "); | |
5af949e3 UW |
1999 | printf_filtered ("%s", |
2000 | paddress (gdbarch, BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))); | |
c5aa993b | 2001 | break; |
c5aa993b | 2002 | case LOC_UNRESOLVED: |
3567439c | 2003 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), |
450bd37b | 2004 | NULL, NULL); |
c5aa993b JM |
2005 | if (msym == NULL) |
2006 | printf_filtered ("Unresolved Static"); | |
2007 | else | |
2008 | { | |
2009 | printf_filtered ("static storage at address "); | |
5af949e3 UW |
2010 | printf_filtered ("%s", |
2011 | paddress (gdbarch, SYMBOL_VALUE_ADDRESS (msym))); | |
c5aa993b JM |
2012 | } |
2013 | break; | |
2014 | case LOC_OPTIMIZED_OUT: | |
2015 | printf_filtered ("optimized out.\n"); | |
2016 | continue; | |
450bd37b | 2017 | case LOC_COMPUTED: |
768a979c | 2018 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, gdb_stdout); |
450bd37b | 2019 | break; |
c5aa993b | 2020 | } |
c906108c | 2021 | if (SYMBOL_TYPE (sym)) |
c5aa993b | 2022 | printf_filtered (", length %d.\n", |
450bd37b | 2023 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); |
c906108c SS |
2024 | } |
2025 | if (BLOCK_FUNCTION (block)) | |
2026 | break; | |
2027 | else | |
2028 | block = BLOCK_SUPERBLOCK (block); | |
2029 | } | |
2030 | if (count <= 0) | |
2031 | printf_filtered ("Scope for %s contains no locals or arguments.\n", | |
2032 | save_args); | |
2033 | } | |
2034 | ||
2035 | /* worker function (cleanup) */ | |
2036 | static void | |
710b33bd | 2037 | replace_comma (void *data) |
c906108c | 2038 | { |
710b33bd | 2039 | char *comma = data; |
c906108c SS |
2040 | *comma = ','; |
2041 | } | |
2042 | ||
2043 | /* tdump command */ | |
2044 | static void | |
fba45db2 | 2045 | trace_dump_command (char *args, int from_tty) |
c906108c | 2046 | { |
515630c5 UW |
2047 | struct regcache *regcache; |
2048 | struct gdbarch *gdbarch; | |
1042e4c0 | 2049 | struct breakpoint *t; |
c906108c | 2050 | struct action_line *action; |
c5aa993b JM |
2051 | char *action_exp, *next_comma; |
2052 | struct cleanup *old_cleanups; | |
2053 | int stepping_actions = 0; | |
2054 | int stepping_frame = 0; | |
c906108c SS |
2055 | |
2056 | if (!target_is_remote ()) | |
2057 | { | |
8a3fe4f8 | 2058 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
2059 | return; |
2060 | } | |
2061 | ||
2062 | if (tracepoint_number == -1) | |
2063 | { | |
8a3fe4f8 | 2064 | warning (_("No current trace frame.")); |
c906108c SS |
2065 | return; |
2066 | } | |
2067 | ||
1042e4c0 | 2068 | t = get_tracepoint (tracepoint_number); |
c906108c SS |
2069 | |
2070 | if (t == NULL) | |
8a3fe4f8 | 2071 | error (_("No known tracepoint matches 'current' tracepoint #%d."), |
c906108c SS |
2072 | tracepoint_number); |
2073 | ||
2074 | old_cleanups = make_cleanup (null_cleanup, NULL); | |
2075 | ||
c5aa993b | 2076 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", |
c906108c SS |
2077 | tracepoint_number, traceframe_number); |
2078 | ||
2079 | /* The current frame is a trap frame if the frame PC is equal | |
2080 | to the tracepoint PC. If not, then the current frame was | |
2081 | collected during single-stepping. */ | |
2082 | ||
515630c5 UW |
2083 | regcache = get_current_regcache (); |
2084 | gdbarch = get_regcache_arch (regcache); | |
2085 | ||
1042e4c0 | 2086 | stepping_frame = (t->loc->address != (regcache_read_pc (regcache) |
515630c5 | 2087 | - gdbarch_decr_pc_after_break (gdbarch))); |
c906108c SS |
2088 | |
2089 | for (action = t->actions; action; action = action->next) | |
2090 | { | |
2091 | struct cmd_list_element *cmd; | |
2092 | ||
c5aa993b | 2093 | QUIT; /* allow user to bail out with ^C */ |
c906108c | 2094 | action_exp = action->action; |
104c1213 | 2095 | while (isspace ((int) *action_exp)) |
c906108c SS |
2096 | action_exp++; |
2097 | ||
2098 | /* The collection actions to be done while stepping are | |
c5aa993b | 2099 | bracketed by the commands "while-stepping" and "end". */ |
c906108c SS |
2100 | |
2101 | if (*action_exp == '#') /* comment line */ | |
2102 | continue; | |
2103 | ||
2104 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
2105 | if (cmd == 0) | |
8a3fe4f8 | 2106 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 2107 | |
bbaca940 | 2108 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 2109 | stepping_actions = 1; |
bbaca940 | 2110 | else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand)) |
c906108c | 2111 | stepping_actions = 0; |
bbaca940 | 2112 | else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c SS |
2113 | { |
2114 | /* Display the collected data. | |
d183932d MS |
2115 | For the trap frame, display only what was collected at |
2116 | the trap. Likewise for stepping frames, display only | |
2117 | what was collected while stepping. This means that the | |
2118 | two boolean variables, STEPPING_FRAME and | |
2119 | STEPPING_ACTIONS should be equal. */ | |
c906108c SS |
2120 | if (stepping_frame == stepping_actions) |
2121 | { | |
c5aa993b JM |
2122 | do |
2123 | { /* repeat over a comma-separated list */ | |
2124 | QUIT; /* allow user to bail out with ^C */ | |
2125 | if (*action_exp == ',') | |
2126 | action_exp++; | |
104c1213 | 2127 | while (isspace ((int) *action_exp)) |
c5aa993b JM |
2128 | action_exp++; |
2129 | ||
2130 | next_comma = strchr (action_exp, ','); | |
2131 | ||
2132 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2133 | registers_info (NULL, from_tty); | |
2134 | else if (0 == strncasecmp (action_exp, "$loc", 4)) | |
2135 | locals_info (NULL, from_tty); | |
2136 | else if (0 == strncasecmp (action_exp, "$arg", 4)) | |
2137 | args_info (NULL, from_tty); | |
2138 | else | |
2139 | { /* variable */ | |
2140 | if (next_comma) | |
2141 | { | |
2142 | make_cleanup (replace_comma, next_comma); | |
2143 | *next_comma = '\0'; | |
2144 | } | |
2145 | printf_filtered ("%s = ", action_exp); | |
2146 | output_command (action_exp, from_tty); | |
2147 | printf_filtered ("\n"); | |
2148 | } | |
2149 | if (next_comma) | |
2150 | *next_comma = ','; | |
2151 | action_exp = next_comma; | |
2152 | } | |
2153 | while (action_exp && *action_exp == ','); | |
c906108c SS |
2154 | } |
2155 | } | |
2156 | } | |
2157 | discard_cleanups (old_cleanups); | |
2158 | } | |
2159 | ||
2160 | /* Convert the memory pointed to by mem into hex, placing result in buf. | |
2161 | * Return a pointer to the last char put in buf (null) | |
2162 | * "stolen" from sparc-stub.c | |
2163 | */ | |
2164 | ||
c5aa993b | 2165 | static const char hexchars[] = "0123456789abcdef"; |
c906108c | 2166 | |
47b667de AC |
2167 | static char * |
2168 | mem2hex (gdb_byte *mem, char *buf, int count) | |
c906108c | 2169 | { |
47b667de | 2170 | gdb_byte ch; |
c906108c SS |
2171 | |
2172 | while (count-- > 0) | |
2173 | { | |
2174 | ch = *mem++; | |
2175 | ||
2176 | *buf++ = hexchars[ch >> 4]; | |
2177 | *buf++ = hexchars[ch & 0xf]; | |
2178 | } | |
2179 | ||
2180 | *buf = 0; | |
2181 | ||
2182 | return buf; | |
2183 | } | |
2184 | ||
c5aa993b | 2185 | int |
fba45db2 | 2186 | get_traceframe_number (void) |
c906108c | 2187 | { |
c5aa993b | 2188 | return traceframe_number; |
c906108c SS |
2189 | } |
2190 | ||
2191 | ||
2192 | /* module initialization */ | |
2193 | void | |
fba45db2 | 2194 | _initialize_tracepoint (void) |
c906108c | 2195 | { |
fa58ee11 EZ |
2196 | struct cmd_list_element *c; |
2197 | ||
c906108c SS |
2198 | traceframe_number = -1; |
2199 | tracepoint_number = -1; | |
2200 | ||
c906108c SS |
2201 | if (tracepoint_list.list == NULL) |
2202 | { | |
2203 | tracepoint_list.listsize = 128; | |
c5aa993b | 2204 | tracepoint_list.list = xmalloc |
c906108c SS |
2205 | (tracepoint_list.listsize * sizeof (struct memrange)); |
2206 | } | |
2207 | if (tracepoint_list.aexpr_list == NULL) | |
2208 | { | |
2209 | tracepoint_list.aexpr_listsize = 128; | |
2210 | tracepoint_list.aexpr_list = xmalloc | |
2211 | (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
2212 | } | |
2213 | ||
2214 | if (stepping_list.list == NULL) | |
2215 | { | |
2216 | stepping_list.listsize = 128; | |
c5aa993b | 2217 | stepping_list.list = xmalloc |
c906108c SS |
2218 | (stepping_list.listsize * sizeof (struct memrange)); |
2219 | } | |
2220 | ||
2221 | if (stepping_list.aexpr_list == NULL) | |
2222 | { | |
2223 | stepping_list.aexpr_listsize = 128; | |
2224 | stepping_list.aexpr_list = xmalloc | |
2225 | (stepping_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
2226 | } | |
2227 | ||
c5aa993b | 2228 | add_info ("scope", scope_info, |
1bedd215 | 2229 | _("List the variables local to a scope")); |
c906108c | 2230 | |
e00d1dc8 | 2231 | add_cmd ("tracepoints", class_trace, NULL, |
1a966eab | 2232 | _("Tracing of program execution without stopping the program."), |
c906108c SS |
2233 | &cmdlist); |
2234 | ||
c5aa993b | 2235 | add_com ("tdump", class_trace, trace_dump_command, |
1bedd215 | 2236 | _("Print everything collected at the current tracepoint.")); |
c906108c | 2237 | |
1bedd215 AC |
2238 | add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\ |
2239 | Select a trace frame;\n\ | |
2240 | No argument means forward by one frame; '-' means backward by one frame."), | |
c906108c SS |
2241 | &tfindlist, "tfind ", 1, &cmdlist); |
2242 | ||
1a966eab AC |
2243 | add_cmd ("outside", class_trace, trace_find_outside_command, _("\ |
2244 | Select a trace frame whose PC is outside the given range.\n\ | |
2245 | Usage: tfind outside addr1, addr2"), | |
c906108c SS |
2246 | &tfindlist); |
2247 | ||
1a966eab AC |
2248 | add_cmd ("range", class_trace, trace_find_range_command, _("\ |
2249 | Select a trace frame whose PC is in the given range.\n\ | |
2250 | Usage: tfind range addr1,addr2"), | |
c906108c SS |
2251 | &tfindlist); |
2252 | ||
1a966eab AC |
2253 | add_cmd ("line", class_trace, trace_find_line_command, _("\ |
2254 | Select a trace frame by source line.\n\ | |
c906108c SS |
2255 | Argument can be a line number (with optional source file), \n\ |
2256 | a function name, or '*' followed by an address.\n\ | |
1a966eab | 2257 | Default argument is 'the next source line that was traced'."), |
c906108c SS |
2258 | &tfindlist); |
2259 | ||
1a966eab AC |
2260 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, _("\ |
2261 | Select a trace frame by tracepoint number.\n\ | |
2262 | Default is the tracepoint for the current trace frame."), | |
c906108c SS |
2263 | &tfindlist); |
2264 | ||
1a966eab AC |
2265 | add_cmd ("pc", class_trace, trace_find_pc_command, _("\ |
2266 | Select a trace frame by PC.\n\ | |
2267 | Default is the current PC, or the PC of the current trace frame."), | |
c906108c SS |
2268 | &tfindlist); |
2269 | ||
1a966eab AC |
2270 | add_cmd ("end", class_trace, trace_find_end_command, _("\ |
2271 | Synonym for 'none'.\n\ | |
2272 | De-select any trace frame and resume 'live' debugging."), | |
c906108c SS |
2273 | &tfindlist); |
2274 | ||
2275 | add_cmd ("none", class_trace, trace_find_none_command, | |
1a966eab | 2276 | _("De-select any trace frame and resume 'live' debugging."), |
c906108c SS |
2277 | &tfindlist); |
2278 | ||
2279 | add_cmd ("start", class_trace, trace_find_start_command, | |
1a966eab | 2280 | _("Select the first trace frame in the trace buffer."), |
c906108c SS |
2281 | &tfindlist); |
2282 | ||
c5aa993b | 2283 | add_com ("tstatus", class_trace, trace_status_command, |
1bedd215 | 2284 | _("Display the status of the current trace data collection.")); |
c906108c | 2285 | |
c5aa993b | 2286 | add_com ("tstop", class_trace, trace_stop_command, |
1bedd215 | 2287 | _("Stop trace data collection.")); |
c906108c SS |
2288 | |
2289 | add_com ("tstart", class_trace, trace_start_command, | |
1bedd215 | 2290 | _("Start trace data collection.")); |
c906108c | 2291 | |
1bedd215 AC |
2292 | add_com ("end", class_trace, end_actions_pseudocommand, _("\ |
2293 | Ends a list of commands or actions.\n\ | |
c906108c SS |
2294 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
2295 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
2296 | such a list.\n\n\ | |
1bedd215 | 2297 | Note: the \"end\" command cannot be used at the gdb prompt.")); |
c906108c | 2298 | |
1bedd215 AC |
2299 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, _("\ |
2300 | Specify single-stepping behavior at a tracepoint.\n\ | |
c906108c SS |
2301 | Argument is number of instructions to trace in single-step mode\n\ |
2302 | following the tracepoint. This command is normally followed by\n\ | |
2303 | one or more \"collect\" commands, to specify what to collect\n\ | |
2304 | while single-stepping.\n\n\ | |
1bedd215 | 2305 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 2306 | |
c5aa993b JM |
2307 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
2308 | add_com_alias ("stepping", "while-stepping", class_alias, 0); | |
c906108c | 2309 | |
1bedd215 AC |
2310 | add_com ("collect", class_trace, collect_pseudocommand, _("\ |
2311 | Specify one or more data items to be collected at a tracepoint.\n\ | |
c906108c SS |
2312 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
2313 | collect all data (variables, registers) referenced by that expression.\n\ | |
2314 | Also accepts the following special arguments:\n\ | |
2315 | $regs -- all registers.\n\ | |
2316 | $args -- all function arguments.\n\ | |
2317 | $locals -- all variables local to the block/function scope.\n\ | |
1bedd215 | 2318 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 2319 | |
1bedd215 AC |
2320 | add_com ("actions", class_trace, trace_actions_command, _("\ |
2321 | Specify the actions to be taken at a tracepoint.\n\ | |
c906108c SS |
2322 | Tracepoint actions may include collecting of specified data, \n\ |
2323 | single-stepping, or enabling/disabling other tracepoints, \n\ | |
1bedd215 | 2324 | depending on target's capabilities.")); |
c906108c | 2325 | |
6d820c5c DJ |
2326 | target_buf_size = 2048; |
2327 | target_buf = xmalloc (target_buf_size); | |
c906108c | 2328 | } |