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, |
4c38e0a4 | 4 | 2007, 2008, 2009, 2010 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" |
c5f0f3d0 | 35 | #include "linespec.h" |
4e052eda | 36 | #include "regcache.h" |
c94fdfd0 | 37 | #include "completer.h" |
fe898f56 | 38 | #include "block.h" |
de4f826b | 39 | #include "dictionary.h" |
383f836e | 40 | #include "observer.h" |
029a67e4 | 41 | #include "user-regs.h" |
79a45b7d | 42 | #include "valprint.h" |
41575630 | 43 | #include "gdbcore.h" |
768a979c | 44 | #include "objfiles.h" |
35b1e5cc | 45 | #include "filenames.h" |
00bf0b85 | 46 | #include "gdbthread.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 | ||
00bf0b85 SS |
62 | #ifndef O_LARGEFILE |
63 | #define O_LARGEFILE 0 | |
64 | #endif | |
65 | ||
66 | extern int hex2bin (const char *hex, gdb_byte *bin, int count); | |
67 | extern int bin2hex (const gdb_byte *bin, char *hex, int count); | |
68 | ||
d5551862 SS |
69 | extern void stop_tracing (); |
70 | ||
d183932d MS |
71 | /* Maximum length of an agent aexpression. |
72 | This accounts for the fact that packets are limited to 400 bytes | |
c906108c SS |
73 | (which includes everything -- including the checksum), and assumes |
74 | the worst case of maximum length for each of the pieces of a | |
75 | continuation packet. | |
c5aa993b | 76 | |
c906108c SS |
77 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
78 | large. (400 - 31)/2 == 184 */ | |
79 | #define MAX_AGENT_EXPR_LEN 184 | |
80 | ||
98c5b216 TT |
81 | /* A hook used to notify the UI of tracepoint operations. */ |
82 | ||
83 | void (*deprecated_trace_find_hook) (char *arg, int from_tty); | |
84 | void (*deprecated_trace_start_stop_hook) (int start, int from_tty); | |
c906108c | 85 | |
9a4105ab AC |
86 | extern void (*deprecated_readline_begin_hook) (char *, ...); |
87 | extern char *(*deprecated_readline_hook) (char *); | |
88 | extern void (*deprecated_readline_end_hook) (void); | |
c906108c | 89 | |
104c1213 JM |
90 | /* GDB commands implemented in other modules: |
91 | */ | |
92 | ||
a14ed312 | 93 | extern void output_command (char *, int); |
104c1213 | 94 | |
c906108c SS |
95 | /* |
96 | Tracepoint.c: | |
97 | ||
98 | This module defines the following debugger commands: | |
99 | trace : set a tracepoint on a function, line, or address. | |
100 | info trace : list all debugger-defined tracepoints. | |
101 | delete trace : delete one or more tracepoints. | |
102 | enable trace : enable one or more tracepoints. | |
103 | disable trace : disable one or more tracepoints. | |
104 | actions : specify actions to be taken at a tracepoint. | |
105 | passcount : specify a pass count for a tracepoint. | |
106 | tstart : start a trace experiment. | |
107 | tstop : stop a trace experiment. | |
108 | tstatus : query the status of a trace experiment. | |
109 | tfind : find a trace frame in the trace buffer. | |
110 | tdump : print everything collected at the current tracepoint. | |
111 | save-tracepoints : write tracepoint setup into a file. | |
112 | ||
113 | This module defines the following user-visible debugger variables: | |
114 | $trace_frame : sequence number of trace frame currently being debugged. | |
115 | $trace_line : source line of trace frame currently being debugged. | |
116 | $trace_file : source file of trace frame currently being debugged. | |
117 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
c5aa993b | 118 | */ |
c906108c SS |
119 | |
120 | ||
121 | /* ======= Important global variables: ======= */ | |
122 | ||
f61e138d SS |
123 | /* The list of all trace state variables. We don't retain pointers to |
124 | any of these for any reason - API is by name or number only - so it | |
125 | works to have a vector of objects. */ | |
126 | ||
127 | typedef struct trace_state_variable tsv_s; | |
128 | DEF_VEC_O(tsv_s); | |
129 | ||
130 | static VEC(tsv_s) *tvariables; | |
131 | ||
132 | /* The next integer to assign to a variable. */ | |
133 | ||
134 | static int next_tsv_number = 1; | |
135 | ||
c906108c SS |
136 | /* Number of last traceframe collected. */ |
137 | static int traceframe_number; | |
138 | ||
139 | /* Tracepoint for last traceframe collected. */ | |
140 | static int tracepoint_number; | |
141 | ||
142 | /* Symbol for function for last traceframe collected */ | |
143 | static struct symbol *traceframe_fun; | |
144 | ||
145 | /* Symtab and line for last traceframe collected */ | |
146 | static struct symtab_and_line traceframe_sal; | |
147 | ||
148 | /* Tracing command lists */ | |
149 | static struct cmd_list_element *tfindlist; | |
150 | ||
236f1d4d | 151 | /* List of expressions to collect by default at each tracepoint hit. */ |
35b1e5cc | 152 | char *default_collect = ""; |
236f1d4d | 153 | |
d5551862 SS |
154 | static int disconnected_tracing; |
155 | ||
4daf5ac0 SS |
156 | /* This variable controls whether we ask the target for a linear or |
157 | circular trace buffer. */ | |
158 | ||
159 | static int circular_trace_buffer; | |
160 | ||
c906108c | 161 | /* ======= Important command functions: ======= */ |
a14ed312 KB |
162 | static void trace_actions_command (char *, int); |
163 | static void trace_start_command (char *, int); | |
164 | static void trace_stop_command (char *, int); | |
165 | static void trace_status_command (char *, int); | |
166 | static void trace_find_command (char *, int); | |
167 | static void trace_find_pc_command (char *, int); | |
168 | static void trace_find_tracepoint_command (char *, int); | |
169 | static void trace_find_line_command (char *, int); | |
170 | static void trace_find_range_command (char *, int); | |
171 | static void trace_find_outside_command (char *, int); | |
a14ed312 | 172 | static void trace_dump_command (char *, int); |
c906108c SS |
173 | |
174 | /* support routines */ | |
c906108c SS |
175 | |
176 | struct collection_list; | |
a14ed312 | 177 | static void add_aexpr (struct collection_list *, struct agent_expr *); |
47b667de | 178 | static char *mem2hex (gdb_byte *, char *, int); |
a14ed312 KB |
179 | static void add_register (struct collection_list *collection, |
180 | unsigned int regno); | |
392a587b | 181 | |
d5551862 SS |
182 | extern void send_disconnected_tracing_value (int value); |
183 | ||
00bf0b85 SS |
184 | static void free_uploaded_tps (struct uploaded_tp **utpp); |
185 | static void free_uploaded_tsvs (struct uploaded_tsv **utsvp); | |
186 | ||
187 | ||
a14ed312 | 188 | extern void _initialize_tracepoint (void); |
c906108c | 189 | |
00bf0b85 SS |
190 | static struct trace_status trace_status; |
191 | ||
192 | char *stop_reason_names[] = { | |
193 | "tunknown", | |
194 | "tnotrun", | |
195 | "tstop", | |
196 | "tfull", | |
197 | "tdisconnected", | |
198 | "tpasscount" | |
199 | }; | |
200 | ||
201 | struct trace_status * | |
202 | current_trace_status () | |
203 | { | |
204 | return &trace_status; | |
205 | } | |
206 | ||
c906108c SS |
207 | /* Set traceframe number to NUM. */ |
208 | static void | |
fba45db2 | 209 | set_traceframe_num (int num) |
c906108c SS |
210 | { |
211 | traceframe_number = num; | |
4fa62494 | 212 | set_internalvar_integer (lookup_internalvar ("trace_frame"), num); |
c906108c SS |
213 | } |
214 | ||
215 | /* Set tracepoint number to NUM. */ | |
216 | static void | |
fba45db2 | 217 | set_tracepoint_num (int num) |
c906108c SS |
218 | { |
219 | tracepoint_number = num; | |
4fa62494 | 220 | set_internalvar_integer (lookup_internalvar ("tracepoint"), num); |
c906108c SS |
221 | } |
222 | ||
223 | /* Set externally visible debug variables for querying/printing | |
224 | the traceframe context (line, function, file) */ | |
225 | ||
226 | static void | |
fb14de7b | 227 | set_traceframe_context (struct frame_info *trace_frame) |
c906108c | 228 | { |
fb14de7b UW |
229 | CORE_ADDR trace_pc; |
230 | ||
fb14de7b | 231 | if (trace_frame == NULL) /* Cease debugging any trace buffers. */ |
c906108c SS |
232 | { |
233 | traceframe_fun = 0; | |
234 | traceframe_sal.pc = traceframe_sal.line = 0; | |
235 | traceframe_sal.symtab = NULL; | |
4fa62494 UW |
236 | clear_internalvar (lookup_internalvar ("trace_func")); |
237 | clear_internalvar (lookup_internalvar ("trace_file")); | |
238 | set_internalvar_integer (lookup_internalvar ("trace_line"), -1); | |
c906108c SS |
239 | return; |
240 | } | |
241 | ||
d183932d | 242 | /* Save as globals for internal use. */ |
fb14de7b | 243 | trace_pc = get_frame_pc (trace_frame); |
c906108c SS |
244 | traceframe_sal = find_pc_line (trace_pc, 0); |
245 | traceframe_fun = find_pc_function (trace_pc); | |
246 | ||
d183932d MS |
247 | /* Save linenumber as "$trace_line", a debugger variable visible to |
248 | users. */ | |
4fa62494 UW |
249 | set_internalvar_integer (lookup_internalvar ("trace_line"), |
250 | traceframe_sal.line); | |
c906108c | 251 | |
d183932d MS |
252 | /* Save func name as "$trace_func", a debugger variable visible to |
253 | users. */ | |
4fa62494 UW |
254 | if (traceframe_fun == NULL |
255 | || SYMBOL_LINKAGE_NAME (traceframe_fun) == NULL) | |
256 | clear_internalvar (lookup_internalvar ("trace_func")); | |
c906108c | 257 | else |
78267919 UW |
258 | set_internalvar_string (lookup_internalvar ("trace_func"), |
259 | SYMBOL_LINKAGE_NAME (traceframe_fun)); | |
c906108c | 260 | |
d183932d MS |
261 | /* Save file name as "$trace_file", a debugger variable visible to |
262 | users. */ | |
4fa62494 UW |
263 | if (traceframe_sal.symtab == NULL |
264 | || traceframe_sal.symtab->filename == NULL) | |
265 | clear_internalvar (lookup_internalvar ("trace_file")); | |
c906108c | 266 | else |
78267919 UW |
267 | set_internalvar_string (lookup_internalvar ("trace_file"), |
268 | traceframe_sal.symtab->filename); | |
c906108c SS |
269 | } |
270 | ||
f61e138d SS |
271 | /* Create a new trace state variable with the given name. */ |
272 | ||
273 | struct trace_state_variable * | |
274 | create_trace_state_variable (const char *name) | |
275 | { | |
276 | struct trace_state_variable tsv; | |
277 | ||
278 | memset (&tsv, 0, sizeof (tsv)); | |
279 | tsv.name = name; | |
280 | tsv.number = next_tsv_number++; | |
281 | return VEC_safe_push (tsv_s, tvariables, &tsv); | |
282 | } | |
283 | ||
284 | /* Look for a trace state variable of the given name. */ | |
285 | ||
286 | struct trace_state_variable * | |
287 | find_trace_state_variable (const char *name) | |
288 | { | |
289 | struct trace_state_variable *tsv; | |
290 | int ix; | |
291 | ||
292 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
293 | if (strcmp (name, tsv->name) == 0) | |
294 | return tsv; | |
295 | ||
296 | return NULL; | |
297 | } | |
298 | ||
299 | void | |
300 | delete_trace_state_variable (const char *name) | |
301 | { | |
302 | struct trace_state_variable *tsv; | |
303 | int ix; | |
304 | ||
305 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
306 | if (strcmp (name, tsv->name) == 0) | |
307 | { | |
308 | VEC_unordered_remove (tsv_s, tvariables, ix); | |
309 | return; | |
310 | } | |
311 | ||
312 | warning (_("No trace variable named \"$%s\", not deleting"), name); | |
313 | } | |
314 | ||
315 | /* The 'tvariable' command collects a name and optional expression to | |
316 | evaluate into an initial value. */ | |
317 | ||
318 | void | |
319 | trace_variable_command (char *args, int from_tty) | |
320 | { | |
321 | struct expression *expr; | |
322 | struct cleanup *old_chain; | |
323 | struct internalvar *intvar = NULL; | |
324 | LONGEST initval = 0; | |
325 | struct trace_state_variable *tsv; | |
326 | ||
327 | if (!args || !*args) | |
328 | error_no_arg (_("trace state variable name")); | |
329 | ||
330 | /* All the possible valid arguments are expressions. */ | |
331 | expr = parse_expression (args); | |
332 | old_chain = make_cleanup (free_current_contents, &expr); | |
333 | ||
334 | if (expr->nelts == 0) | |
335 | error (_("No expression?")); | |
336 | ||
337 | /* Only allow two syntaxes; "$name" and "$name=value". */ | |
338 | if (expr->elts[0].opcode == OP_INTERNALVAR) | |
339 | { | |
340 | intvar = expr->elts[1].internalvar; | |
341 | } | |
342 | else if (expr->elts[0].opcode == BINOP_ASSIGN | |
343 | && expr->elts[1].opcode == OP_INTERNALVAR) | |
344 | { | |
345 | intvar = expr->elts[2].internalvar; | |
346 | initval = value_as_long (evaluate_subexpression_type (expr, 4)); | |
347 | } | |
348 | else | |
349 | error (_("Syntax must be $NAME [ = EXPR ]")); | |
350 | ||
351 | if (!intvar) | |
352 | error (_("No name given")); | |
353 | ||
354 | if (strlen (internalvar_name (intvar)) <= 0) | |
355 | error (_("Must supply a non-empty variable name")); | |
356 | ||
357 | /* If the variable already exists, just change its initial value. */ | |
358 | tsv = find_trace_state_variable (internalvar_name (intvar)); | |
359 | if (tsv) | |
360 | { | |
361 | tsv->initial_value = initval; | |
362 | printf_filtered (_("Trace state variable $%s now has initial value %s.\n"), | |
363 | tsv->name, plongest (tsv->initial_value)); | |
364 | return; | |
365 | } | |
366 | ||
367 | /* Create a new variable. */ | |
368 | tsv = create_trace_state_variable (internalvar_name (intvar)); | |
369 | tsv->initial_value = initval; | |
370 | ||
371 | printf_filtered (_("Trace state variable $%s created, with initial value %s.\n"), | |
372 | tsv->name, plongest (tsv->initial_value)); | |
373 | ||
374 | do_cleanups (old_chain); | |
375 | } | |
376 | ||
377 | void | |
378 | delete_trace_variable_command (char *args, int from_tty) | |
379 | { | |
380 | int i, ix; | |
381 | char **argv; | |
382 | struct cleanup *back_to; | |
383 | struct trace_state_variable *tsv; | |
384 | ||
385 | if (args == NULL) | |
386 | { | |
387 | if (query (_("Delete all trace state variables? "))) | |
388 | VEC_free (tsv_s, tvariables); | |
389 | dont_repeat (); | |
390 | return; | |
391 | } | |
392 | ||
393 | argv = gdb_buildargv (args); | |
394 | back_to = make_cleanup_freeargv (argv); | |
395 | ||
396 | for (i = 0; argv[i] != NULL; i++) | |
397 | { | |
398 | if (*argv[i] == '$') | |
399 | delete_trace_state_variable (argv[i] + 1); | |
400 | else | |
401 | warning (_("Name \"%s\" not prefixed with '$', ignoring"), argv[i]); | |
402 | } | |
403 | ||
404 | do_cleanups (back_to); | |
405 | ||
406 | dont_repeat (); | |
407 | } | |
408 | ||
409 | /* List all the trace state variables. */ | |
410 | ||
411 | static void | |
412 | tvariables_info (char *args, int from_tty) | |
413 | { | |
414 | struct trace_state_variable *tsv; | |
415 | int ix; | |
416 | char *reply; | |
417 | ULONGEST tval; | |
418 | ||
f61e138d SS |
419 | if (VEC_length (tsv_s, tvariables) == 0) |
420 | { | |
421 | printf_filtered (_("No trace state variables.\n")); | |
422 | return; | |
423 | } | |
424 | ||
35b1e5cc SS |
425 | /* Try to acquire values from the target. */ |
426 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
427 | tsv->value_known = target_get_trace_state_variable_value (tsv->number, | |
428 | &(tsv->value)); | |
429 | ||
f61e138d SS |
430 | printf_filtered (_("Name\t\t Initial\tCurrent\n")); |
431 | ||
432 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
433 | { | |
434 | printf_filtered ("$%s", tsv->name); | |
435 | print_spaces_filtered (17 - strlen (tsv->name), gdb_stdout); | |
436 | printf_filtered ("%s ", plongest (tsv->initial_value)); | |
437 | print_spaces_filtered (11 - strlen (plongest (tsv->initial_value)), gdb_stdout); | |
438 | if (tsv->value_known) | |
439 | printf_filtered (" %s", plongest (tsv->value)); | |
00bf0b85 | 440 | else if (current_trace_status ()->running || traceframe_number >= 0) |
f61e138d SS |
441 | /* The value is/was defined, but we don't have it. */ |
442 | printf_filtered (_(" <unknown>")); | |
443 | else | |
444 | /* It is not meaningful to ask about the value. */ | |
445 | printf_filtered (_(" <undefined>")); | |
446 | printf_filtered ("\n"); | |
447 | } | |
448 | } | |
449 | ||
c906108c SS |
450 | /* ACTIONS functions: */ |
451 | ||
c906108c | 452 | /* The three functions: |
c5aa993b JM |
453 | collect_pseudocommand, |
454 | while_stepping_pseudocommand, and | |
455 | end_actions_pseudocommand | |
c906108c SS |
456 | are placeholders for "commands" that are actually ONLY to be used |
457 | within a tracepoint action list. If the actual function is ever called, | |
458 | it means that somebody issued the "command" at the top level, | |
459 | which is always an error. */ | |
460 | ||
1042e4c0 | 461 | void |
fba45db2 | 462 | end_actions_pseudocommand (char *args, int from_tty) |
c906108c | 463 | { |
8a3fe4f8 | 464 | error (_("This command cannot be used at the top level.")); |
c906108c SS |
465 | } |
466 | ||
1042e4c0 | 467 | void |
fba45db2 | 468 | while_stepping_pseudocommand (char *args, int from_tty) |
c906108c | 469 | { |
8a3fe4f8 | 470 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
471 | } |
472 | ||
473 | static void | |
fba45db2 | 474 | collect_pseudocommand (char *args, int from_tty) |
c906108c | 475 | { |
8a3fe4f8 | 476 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
477 | } |
478 | ||
6da95a67 SS |
479 | static void |
480 | teval_pseudocommand (char *args, int from_tty) | |
481 | { | |
482 | error (_("This command can only be used in a tracepoint actions list.")); | |
483 | } | |
484 | ||
c906108c SS |
485 | /* Enter a list of actions for a tracepoint. */ |
486 | static void | |
fba45db2 | 487 | trace_actions_command (char *args, int from_tty) |
c906108c | 488 | { |
1042e4c0 | 489 | struct breakpoint *t; |
a7bdde9e | 490 | struct command_line *l; |
c906108c | 491 | |
c2d11a7d | 492 | t = get_tracepoint_by_number (&args, 0, 1); |
7a292a7a | 493 | if (t) |
c906108c | 494 | { |
a7bdde9e VP |
495 | char *tmpbuf = |
496 | xstrprintf ("Enter actions for tracepoint %d, one per line.", | |
497 | t->number); | |
498 | struct cleanup *cleanups = make_cleanup (xfree, tmpbuf); | |
499 | ||
500 | l = read_command_lines (tmpbuf, from_tty, 1, check_tracepoint_command, t); | |
501 | do_cleanups (cleanups); | |
502 | breakpoint_set_commands (t, l); | |
c906108c | 503 | } |
5c44784c | 504 | /* else just return */ |
c906108c SS |
505 | } |
506 | ||
c906108c SS |
507 | /* worker function */ |
508 | enum actionline_type | |
1042e4c0 | 509 | validate_actionline (char **line, struct breakpoint *t) |
c906108c SS |
510 | { |
511 | struct cmd_list_element *c; | |
512 | struct expression *exp = NULL; | |
c906108c | 513 | struct cleanup *old_chain = NULL; |
9355b391 SS |
514 | char *p, *tmp_p; |
515 | struct bp_location *loc; | |
c906108c | 516 | |
15255275 MS |
517 | /* if EOF is typed, *line is NULL */ |
518 | if (*line == NULL) | |
519 | return END; | |
520 | ||
104c1213 | 521 | for (p = *line; isspace ((int) *p);) |
c906108c SS |
522 | p++; |
523 | ||
d183932d MS |
524 | /* Symbol lookup etc. */ |
525 | if (*p == '\0') /* empty line: just prompt for another line. */ | |
c906108c SS |
526 | return BADLINE; |
527 | ||
c5aa993b | 528 | if (*p == '#') /* comment line */ |
c906108c SS |
529 | return GENERIC; |
530 | ||
531 | c = lookup_cmd (&p, cmdlist, "", -1, 1); | |
532 | if (c == 0) | |
533 | { | |
8a3fe4f8 | 534 | warning (_("'%s' is not an action that I know, or is ambiguous."), |
d183932d | 535 | p); |
c906108c SS |
536 | return BADLINE; |
537 | } | |
c5aa993b | 538 | |
bbaca940 | 539 | if (cmd_cfunc_eq (c, collect_pseudocommand)) |
c906108c SS |
540 | { |
541 | struct agent_expr *aexpr; | |
542 | struct agent_reqs areqs; | |
543 | ||
c5aa993b JM |
544 | do |
545 | { /* repeat over a comma-separated list */ | |
546 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 547 | while (isspace ((int) *p)) |
c5aa993b | 548 | p++; |
c906108c | 549 | |
c5aa993b JM |
550 | if (*p == '$') /* look for special pseudo-symbols */ |
551 | { | |
c5aa993b JM |
552 | if ((0 == strncasecmp ("reg", p + 1, 3)) || |
553 | (0 == strncasecmp ("arg", p + 1, 3)) || | |
554 | (0 == strncasecmp ("loc", p + 1, 3))) | |
555 | { | |
556 | p = strchr (p, ','); | |
557 | continue; | |
558 | } | |
d183932d | 559 | /* else fall thru, treat p as an expression and parse it! */ |
c5aa993b | 560 | } |
9355b391 SS |
561 | tmp_p = p; |
562 | for (loc = t->loc; loc; loc = loc->next) | |
c5aa993b | 563 | { |
9355b391 SS |
564 | p = tmp_p; |
565 | exp = parse_exp_1 (&p, block_for_pc (loc->address), 1); | |
566 | old_chain = make_cleanup (free_current_contents, &exp); | |
567 | ||
568 | if (exp->elts[0].opcode == OP_VAR_VALUE) | |
c5aa993b | 569 | { |
9355b391 SS |
570 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) |
571 | { | |
572 | warning (_("constant %s (value %ld) will not be collected."), | |
573 | SYMBOL_PRINT_NAME (exp->elts[2].symbol), | |
574 | SYMBOL_VALUE (exp->elts[2].symbol)); | |
575 | return BADLINE; | |
576 | } | |
577 | else if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_OPTIMIZED_OUT) | |
578 | { | |
579 | warning (_("%s is optimized away and cannot be collected."), | |
580 | SYMBOL_PRINT_NAME (exp->elts[2].symbol)); | |
581 | return BADLINE; | |
582 | } | |
c5aa993b | 583 | } |
c906108c | 584 | |
9355b391 SS |
585 | /* We have something to collect, make sure that the expr to |
586 | bytecode translator can handle it and that it's not too | |
587 | long. */ | |
588 | aexpr = gen_trace_for_expr (loc->address, exp); | |
589 | make_cleanup_free_agent_expr (aexpr); | |
c906108c | 590 | |
9355b391 SS |
591 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
592 | error (_("expression too complicated, try simplifying")); | |
c906108c | 593 | |
9355b391 SS |
594 | ax_reqs (aexpr, &areqs); |
595 | (void) make_cleanup (xfree, areqs.reg_mask); | |
c906108c | 596 | |
9355b391 SS |
597 | if (areqs.flaw != agent_flaw_none) |
598 | error (_("malformed expression")); | |
c906108c | 599 | |
9355b391 SS |
600 | if (areqs.min_height < 0) |
601 | error (_("gdb: Internal error: expression has min height < 0")); | |
c906108c | 602 | |
9355b391 SS |
603 | if (areqs.max_height > 20) |
604 | error (_("expression too complicated, try simplifying")); | |
c906108c | 605 | |
9355b391 SS |
606 | do_cleanups (old_chain); |
607 | } | |
c5aa993b JM |
608 | } |
609 | while (p && *p++ == ','); | |
c906108c SS |
610 | return GENERIC; |
611 | } | |
6da95a67 SS |
612 | else if (cmd_cfunc_eq (c, teval_pseudocommand)) |
613 | { | |
614 | struct agent_expr *aexpr; | |
615 | ||
616 | do | |
617 | { /* repeat over a comma-separated list */ | |
618 | QUIT; /* allow user to bail out with ^C */ | |
619 | while (isspace ((int) *p)) | |
620 | p++; | |
621 | ||
9355b391 SS |
622 | tmp_p = p; |
623 | for (loc = t->loc; loc; loc = loc->next) | |
624 | { | |
625 | p = tmp_p; | |
626 | /* Only expressions are allowed for this action. */ | |
627 | exp = parse_exp_1 (&p, block_for_pc (loc->address), 1); | |
628 | old_chain = make_cleanup (free_current_contents, &exp); | |
6da95a67 | 629 | |
9355b391 SS |
630 | /* We have something to evaluate, make sure that the expr to |
631 | bytecode translator can handle it and that it's not too | |
632 | long. */ | |
633 | aexpr = gen_eval_for_expr (loc->address, exp); | |
634 | make_cleanup_free_agent_expr (aexpr); | |
6da95a67 | 635 | |
9355b391 SS |
636 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
637 | error (_("expression too complicated, try simplifying")); | |
6da95a67 | 638 | |
9355b391 SS |
639 | do_cleanups (old_chain); |
640 | } | |
6da95a67 SS |
641 | } |
642 | while (p && *p++ == ','); | |
643 | return GENERIC; | |
644 | } | |
bbaca940 | 645 | else if (cmd_cfunc_eq (c, while_stepping_pseudocommand)) |
c906108c | 646 | { |
c5aa993b | 647 | char *steparg; /* in case warning is necessary */ |
c906108c | 648 | |
104c1213 | 649 | while (isspace ((int) *p)) |
c906108c SS |
650 | p++; |
651 | steparg = p; | |
652 | ||
653 | if (*p == '\0' || | |
654 | (t->step_count = strtol (p, &p, 0)) == 0) | |
655 | { | |
a7bdde9e | 656 | error (_("'%s': bad step-count."), *line); |
c906108c SS |
657 | } |
658 | return STEPPING; | |
659 | } | |
bbaca940 | 660 | else if (cmd_cfunc_eq (c, end_actions_pseudocommand)) |
c906108c SS |
661 | return END; |
662 | else | |
663 | { | |
a7bdde9e | 664 | error (_("'%s' is not a supported tracepoint action."), *line); |
c906108c | 665 | } |
74b7792f AC |
666 | } |
667 | ||
f50e79a4 JB |
668 | enum { |
669 | memrange_absolute = -1 | |
670 | }; | |
671 | ||
c5aa993b JM |
672 | struct memrange |
673 | { | |
f50e79a4 JB |
674 | int type; /* memrange_absolute for absolute memory range, |
675 | else basereg number */ | |
c906108c SS |
676 | bfd_signed_vma start; |
677 | bfd_signed_vma end; | |
678 | }; | |
679 | ||
c5aa993b JM |
680 | struct collection_list |
681 | { | |
549678da | 682 | unsigned char regs_mask[32]; /* room for up to 256 regs */ |
c5aa993b JM |
683 | long listsize; |
684 | long next_memrange; | |
685 | struct memrange *list; | |
686 | long aexpr_listsize; /* size of array pointed to by expr_list elt */ | |
687 | long next_aexpr_elt; | |
688 | struct agent_expr **aexpr_list; | |
689 | ||
690 | } | |
691 | tracepoint_list, stepping_list; | |
c906108c SS |
692 | |
693 | /* MEMRANGE functions: */ | |
694 | ||
a14ed312 | 695 | static int memrange_cmp (const void *, const void *); |
c906108c SS |
696 | |
697 | /* compare memranges for qsort */ | |
698 | static int | |
fba45db2 | 699 | memrange_cmp (const void *va, const void *vb) |
c906108c SS |
700 | { |
701 | const struct memrange *a = va, *b = vb; | |
702 | ||
703 | if (a->type < b->type) | |
704 | return -1; | |
705 | if (a->type > b->type) | |
c5aa993b | 706 | return 1; |
f50e79a4 | 707 | if (a->type == memrange_absolute) |
c906108c | 708 | { |
c5aa993b JM |
709 | if ((bfd_vma) a->start < (bfd_vma) b->start) |
710 | return -1; | |
711 | if ((bfd_vma) a->start > (bfd_vma) b->start) | |
712 | return 1; | |
c906108c SS |
713 | } |
714 | else | |
715 | { | |
c5aa993b | 716 | if (a->start < b->start) |
c906108c | 717 | return -1; |
c5aa993b JM |
718 | if (a->start > b->start) |
719 | return 1; | |
c906108c SS |
720 | } |
721 | return 0; | |
722 | } | |
723 | ||
d183932d | 724 | /* Sort the memrange list using qsort, and merge adjacent memranges. */ |
c906108c | 725 | static void |
fba45db2 | 726 | memrange_sortmerge (struct collection_list *memranges) |
c906108c SS |
727 | { |
728 | int a, b; | |
729 | ||
c5aa993b | 730 | qsort (memranges->list, memranges->next_memrange, |
c906108c SS |
731 | sizeof (struct memrange), memrange_cmp); |
732 | if (memranges->next_memrange > 0) | |
733 | { | |
734 | for (a = 0, b = 1; b < memranges->next_memrange; b++) | |
735 | { | |
736 | if (memranges->list[a].type == memranges->list[b].type && | |
c5aa993b | 737 | memranges->list[b].start - memranges->list[a].end <= |
0c92afe8 | 738 | MAX_REGISTER_SIZE) |
c906108c SS |
739 | { |
740 | /* memrange b starts before memrange a ends; merge them. */ | |
741 | if (memranges->list[b].end > memranges->list[a].end) | |
742 | memranges->list[a].end = memranges->list[b].end; | |
743 | continue; /* next b, same a */ | |
744 | } | |
745 | a++; /* next a */ | |
746 | if (a != b) | |
c5aa993b | 747 | memcpy (&memranges->list[a], &memranges->list[b], |
c906108c SS |
748 | sizeof (struct memrange)); |
749 | } | |
750 | memranges->next_memrange = a + 1; | |
751 | } | |
752 | } | |
753 | ||
d183932d | 754 | /* Add a register to a collection list. */ |
392a587b | 755 | static void |
fba45db2 | 756 | add_register (struct collection_list *collection, unsigned int regno) |
c906108c SS |
757 | { |
758 | if (info_verbose) | |
759 | printf_filtered ("collect register %d\n", regno); | |
27e06d3e | 760 | if (regno >= (8 * sizeof (collection->regs_mask))) |
8a3fe4f8 | 761 | error (_("Internal: register number %d too large for tracepoint"), |
c906108c | 762 | regno); |
c5aa993b | 763 | collection->regs_mask[regno / 8] |= 1 << (regno % 8); |
c906108c SS |
764 | } |
765 | ||
766 | /* Add a memrange to a collection list */ | |
767 | static void | |
d183932d MS |
768 | add_memrange (struct collection_list *memranges, |
769 | int type, bfd_signed_vma base, | |
fba45db2 | 770 | unsigned long len) |
c906108c SS |
771 | { |
772 | if (info_verbose) | |
104c1213 JM |
773 | { |
774 | printf_filtered ("(%d,", type); | |
775 | printf_vma (base); | |
776 | printf_filtered (",%ld)\n", len); | |
777 | } | |
778 | ||
f50e79a4 | 779 | /* type: memrange_absolute == memory, other n == basereg */ |
c5aa993b | 780 | memranges->list[memranges->next_memrange].type = type; |
d183932d | 781 | /* base: addr if memory, offset if reg relative. */ |
c906108c SS |
782 | memranges->list[memranges->next_memrange].start = base; |
783 | /* len: we actually save end (base + len) for convenience */ | |
c5aa993b | 784 | memranges->list[memranges->next_memrange].end = base + len; |
c906108c SS |
785 | memranges->next_memrange++; |
786 | if (memranges->next_memrange >= memranges->listsize) | |
787 | { | |
788 | memranges->listsize *= 2; | |
c5aa993b | 789 | memranges->list = xrealloc (memranges->list, |
c906108c SS |
790 | memranges->listsize); |
791 | } | |
792 | ||
f50e79a4 | 793 | if (type != memrange_absolute) /* Better collect the base register! */ |
c906108c SS |
794 | add_register (memranges, type); |
795 | } | |
796 | ||
d183932d | 797 | /* Add a symbol to a collection list. */ |
c906108c | 798 | static void |
d183932d MS |
799 | collect_symbol (struct collection_list *collect, |
800 | struct symbol *sym, | |
a6d9a66e | 801 | struct gdbarch *gdbarch, |
0936ad1d SS |
802 | long frame_regno, long frame_offset, |
803 | CORE_ADDR scope) | |
c906108c | 804 | { |
c5aa993b | 805 | unsigned long len; |
104c1213 | 806 | unsigned int reg; |
c906108c | 807 | bfd_signed_vma offset; |
400c6af0 | 808 | int treat_as_expr = 0; |
c906108c | 809 | |
c5aa993b JM |
810 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
811 | switch (SYMBOL_CLASS (sym)) | |
812 | { | |
813 | default: | |
814 | printf_filtered ("%s: don't know symbol class %d\n", | |
3567439c | 815 | SYMBOL_PRINT_NAME (sym), |
d183932d | 816 | SYMBOL_CLASS (sym)); |
c5aa993b JM |
817 | break; |
818 | case LOC_CONST: | |
104c1213 | 819 | printf_filtered ("constant %s (value %ld) will not be collected.\n", |
3567439c | 820 | SYMBOL_PRINT_NAME (sym), SYMBOL_VALUE (sym)); |
c5aa993b JM |
821 | break; |
822 | case LOC_STATIC: | |
823 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
824 | if (info_verbose) | |
104c1213 JM |
825 | { |
826 | char tmp[40]; | |
827 | ||
828 | sprintf_vma (tmp, offset); | |
829 | printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", | |
3567439c | 830 | SYMBOL_PRINT_NAME (sym), len, |
d183932d | 831 | tmp /* address */); |
104c1213 | 832 | } |
400c6af0 SS |
833 | /* A struct may be a C++ class with static fields, go to general |
834 | expression handling. */ | |
835 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT) | |
836 | treat_as_expr = 1; | |
837 | else | |
838 | add_memrange (collect, memrange_absolute, offset, len); | |
c5aa993b JM |
839 | break; |
840 | case LOC_REGISTER: | |
a6d9a66e | 841 | reg = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); |
c5aa993b | 842 | if (info_verbose) |
d183932d | 843 | printf_filtered ("LOC_REG[parm] %s: ", |
3567439c | 844 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 845 | add_register (collect, reg); |
d183932d MS |
846 | /* Check for doubles stored in two registers. */ |
847 | /* FIXME: how about larger types stored in 3 or more regs? */ | |
c5aa993b | 848 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT && |
a6d9a66e | 849 | len > register_size (gdbarch, reg)) |
c5aa993b JM |
850 | add_register (collect, reg + 1); |
851 | break; | |
852 | case LOC_REF_ARG: | |
853 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); | |
854 | printf_filtered (" (will not collect %s)\n", | |
3567439c | 855 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
856 | break; |
857 | case LOC_ARG: | |
858 | reg = frame_regno; | |
859 | offset = frame_offset + SYMBOL_VALUE (sym); | |
860 | if (info_verbose) | |
861 | { | |
104c1213 | 862 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 863 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
864 | printf_vma (offset); |
865 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
866 | } |
867 | add_memrange (collect, reg, offset, len); | |
868 | break; | |
869 | case LOC_REGPARM_ADDR: | |
870 | reg = SYMBOL_VALUE (sym); | |
871 | offset = 0; | |
872 | if (info_verbose) | |
873 | { | |
104c1213 | 874 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ", |
3567439c | 875 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
876 | printf_vma (offset); |
877 | printf_filtered (" from reg %d\n", reg); | |
c5aa993b JM |
878 | } |
879 | add_memrange (collect, reg, offset, len); | |
880 | break; | |
881 | case LOC_LOCAL: | |
c5aa993b JM |
882 | reg = frame_regno; |
883 | offset = frame_offset + SYMBOL_VALUE (sym); | |
884 | if (info_verbose) | |
885 | { | |
104c1213 | 886 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 887 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
888 | printf_vma (offset); |
889 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
890 | } |
891 | add_memrange (collect, reg, offset, len); | |
892 | break; | |
c5aa993b | 893 | case LOC_UNRESOLVED: |
d183932d | 894 | printf_filtered ("Don't know LOC_UNRESOLVED %s\n", |
3567439c | 895 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
896 | break; |
897 | case LOC_OPTIMIZED_OUT: | |
8e1a459b | 898 | printf_filtered ("%s has been optimized out of existence.\n", |
3567439c | 899 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 900 | break; |
0936ad1d SS |
901 | |
902 | case LOC_COMPUTED: | |
400c6af0 | 903 | treat_as_expr = 1; |
0936ad1d | 904 | break; |
c5aa993b | 905 | } |
400c6af0 SS |
906 | |
907 | /* Expressions are the most general case. */ | |
908 | if (treat_as_expr) | |
909 | { | |
910 | struct agent_expr *aexpr; | |
911 | struct cleanup *old_chain1 = NULL; | |
912 | struct agent_reqs areqs; | |
913 | ||
914 | aexpr = gen_trace_for_var (scope, gdbarch, sym); | |
915 | ||
916 | /* It can happen that the symbol is recorded as a computed | |
917 | location, but it's been optimized away and doesn't actually | |
918 | have a location expression. */ | |
919 | if (!aexpr) | |
920 | { | |
921 | printf_filtered ("%s has been optimized out of existence.\n", | |
922 | SYMBOL_PRINT_NAME (sym)); | |
923 | return; | |
924 | } | |
925 | ||
926 | old_chain1 = make_cleanup_free_agent_expr (aexpr); | |
927 | ||
928 | ax_reqs (aexpr, &areqs); | |
929 | if (areqs.flaw != agent_flaw_none) | |
930 | error (_("malformed expression")); | |
931 | ||
932 | if (areqs.min_height < 0) | |
933 | error (_("gdb: Internal error: expression has min height < 0")); | |
934 | if (areqs.max_height > 20) | |
935 | error (_("expression too complicated, try simplifying")); | |
936 | ||
937 | discard_cleanups (old_chain1); | |
938 | add_aexpr (collect, aexpr); | |
939 | ||
940 | /* take care of the registers */ | |
941 | if (areqs.reg_mask_len > 0) | |
942 | { | |
943 | int ndx1, ndx2; | |
944 | ||
945 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) | |
946 | { | |
947 | QUIT; /* allow user to bail out with ^C */ | |
948 | if (areqs.reg_mask[ndx1] != 0) | |
949 | { | |
950 | /* assume chars have 8 bits */ | |
951 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
952 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) | |
953 | /* it's used -- record it */ | |
954 | add_register (collect, ndx1 * 8 + ndx2); | |
955 | } | |
956 | } | |
957 | } | |
958 | } | |
c906108c SS |
959 | } |
960 | ||
961 | /* Add all locals (or args) symbols to collection list */ | |
962 | static void | |
a6d9a66e UW |
963 | add_local_symbols (struct collection_list *collect, |
964 | struct gdbarch *gdbarch, CORE_ADDR pc, | |
fba45db2 | 965 | long frame_regno, long frame_offset, int type) |
c906108c SS |
966 | { |
967 | struct symbol *sym; | |
c5aa993b | 968 | struct block *block; |
de4f826b DC |
969 | struct dict_iterator iter; |
970 | int count = 0; | |
c906108c SS |
971 | |
972 | block = block_for_pc (pc); | |
973 | while (block != 0) | |
974 | { | |
c5aa993b | 975 | QUIT; /* allow user to bail out with ^C */ |
de4f826b | 976 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 977 | { |
2a2d4dc3 AS |
978 | if (SYMBOL_IS_ARGUMENT (sym) |
979 | ? type == 'A' /* collecting Arguments */ | |
980 | : type == 'L') /* collecting Locals */ | |
c5aa993b | 981 | { |
2a2d4dc3 | 982 | count++; |
a6d9a66e | 983 | collect_symbol (collect, sym, gdbarch, |
0936ad1d | 984 | frame_regno, frame_offset, pc); |
c5aa993b | 985 | } |
c906108c SS |
986 | } |
987 | if (BLOCK_FUNCTION (block)) | |
988 | break; | |
989 | else | |
990 | block = BLOCK_SUPERBLOCK (block); | |
991 | } | |
992 | if (count == 0) | |
8a3fe4f8 | 993 | warning (_("No %s found in scope."), |
d183932d | 994 | type == 'L' ? "locals" : "args"); |
c906108c SS |
995 | } |
996 | ||
997 | /* worker function */ | |
998 | static void | |
fba45db2 | 999 | clear_collection_list (struct collection_list *list) |
c906108c SS |
1000 | { |
1001 | int ndx; | |
1002 | ||
1003 | list->next_memrange = 0; | |
1004 | for (ndx = 0; ndx < list->next_aexpr_elt; ndx++) | |
1005 | { | |
c5aa993b | 1006 | free_agent_expr (list->aexpr_list[ndx]); |
c906108c SS |
1007 | list->aexpr_list[ndx] = NULL; |
1008 | } | |
1009 | list->next_aexpr_elt = 0; | |
1010 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); | |
1011 | } | |
1012 | ||
1013 | /* reduce a collection list to string form (for gdb protocol) */ | |
1014 | static char ** | |
fba45db2 | 1015 | stringify_collection_list (struct collection_list *list, char *string) |
c906108c SS |
1016 | { |
1017 | char temp_buf[2048]; | |
104c1213 | 1018 | char tmp2[40]; |
c906108c SS |
1019 | int count; |
1020 | int ndx = 0; | |
1021 | char *(*str_list)[]; | |
1022 | char *end; | |
c5aa993b | 1023 | long i; |
c906108c SS |
1024 | |
1025 | count = 1 + list->next_memrange + list->next_aexpr_elt + 1; | |
c5aa993b | 1026 | str_list = (char *(*)[]) xmalloc (count * sizeof (char *)); |
c906108c SS |
1027 | |
1028 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) | |
1029 | if (list->regs_mask[i] != 0) /* skip leading zeroes in regs_mask */ | |
1030 | break; | |
1031 | if (list->regs_mask[i] != 0) /* prepare to send regs_mask to the stub */ | |
1032 | { | |
1033 | if (info_verbose) | |
1034 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
1035 | end = temp_buf; | |
c5aa993b | 1036 | *end++ = 'R'; |
c906108c SS |
1037 | for (; i >= 0; i--) |
1038 | { | |
c5aa993b | 1039 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
1040 | if (info_verbose) |
1041 | printf_filtered ("%02X", list->regs_mask[i]); | |
c5aa993b | 1042 | sprintf (end, "%02X", list->regs_mask[i]); |
c906108c SS |
1043 | end += 2; |
1044 | } | |
1b36a34b | 1045 | (*str_list)[ndx] = xstrdup (temp_buf); |
c906108c SS |
1046 | ndx++; |
1047 | } | |
1048 | if (info_verbose) | |
1049 | printf_filtered ("\n"); | |
1050 | if (list->next_memrange > 0 && info_verbose) | |
1051 | printf_filtered ("Collecting memranges: \n"); | |
1052 | for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++) | |
1053 | { | |
1054 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 1055 | sprintf_vma (tmp2, list->list[i].start); |
c906108c | 1056 | if (info_verbose) |
104c1213 JM |
1057 | { |
1058 | printf_filtered ("(%d, %s, %ld)\n", | |
1059 | list->list[i].type, | |
1060 | tmp2, | |
1061 | (long) (list->list[i].end - list->list[i].start)); | |
1062 | } | |
c906108c SS |
1063 | if (count + 27 > MAX_AGENT_EXPR_LEN) |
1064 | { | |
c5aa993b | 1065 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1066 | ndx++; |
1067 | count = 0; | |
1068 | end = temp_buf; | |
1069 | } | |
104c1213 | 1070 | |
d1948716 JB |
1071 | { |
1072 | bfd_signed_vma length = list->list[i].end - list->list[i].start; | |
1073 | ||
1074 | /* The "%X" conversion specifier expects an unsigned argument, | |
f50e79a4 JB |
1075 | so passing -1 (memrange_absolute) to it directly gives you |
1076 | "FFFFFFFF" (or more, depending on sizeof (unsigned)). | |
1077 | Special-case it. */ | |
1078 | if (list->list[i].type == memrange_absolute) | |
d1948716 JB |
1079 | sprintf (end, "M-1,%s,%lX", tmp2, (long) length); |
1080 | else | |
1081 | sprintf (end, "M%X,%s,%lX", list->list[i].type, tmp2, (long) length); | |
1082 | } | |
104c1213 | 1083 | |
c906108c | 1084 | count += strlen (end); |
3ffbc0a5 | 1085 | end = temp_buf + count; |
c906108c SS |
1086 | } |
1087 | ||
1088 | for (i = 0; i < list->next_aexpr_elt; i++) | |
1089 | { | |
1090 | QUIT; /* allow user to bail out with ^C */ | |
1091 | if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN) | |
1092 | { | |
c5aa993b | 1093 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1094 | ndx++; |
1095 | count = 0; | |
1096 | end = temp_buf; | |
1097 | } | |
1098 | sprintf (end, "X%08X,", list->aexpr_list[i]->len); | |
1099 | end += 10; /* 'X' + 8 hex digits + ',' */ | |
1100 | count += 10; | |
1101 | ||
d183932d MS |
1102 | end = mem2hex (list->aexpr_list[i]->buf, |
1103 | end, list->aexpr_list[i]->len); | |
c906108c SS |
1104 | count += 2 * list->aexpr_list[i]->len; |
1105 | } | |
1106 | ||
1107 | if (count != 0) | |
1108 | { | |
c5aa993b | 1109 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1110 | ndx++; |
1111 | count = 0; | |
1112 | end = temp_buf; | |
1113 | } | |
1114 | (*str_list)[ndx] = NULL; | |
1115 | ||
1116 | if (ndx == 0) | |
27e06d3e | 1117 | { |
6c761d9c | 1118 | xfree (str_list); |
27e06d3e MS |
1119 | return NULL; |
1120 | } | |
c906108c SS |
1121 | else |
1122 | return *str_list; | |
1123 | } | |
1124 | ||
a7bdde9e VP |
1125 | |
1126 | static void | |
1127 | encode_actions_1 (struct command_line *action, | |
1128 | struct breakpoint *t, | |
1129 | struct bp_location *tloc, | |
1130 | int frame_reg, | |
1131 | LONGEST frame_offset, | |
1132 | struct collection_list *collect, | |
1133 | struct collection_list *stepping_list) | |
c906108c | 1134 | { |
c5aa993b JM |
1135 | char *action_exp; |
1136 | struct expression *exp = NULL; | |
a7bdde9e | 1137 | struct command_line *actions; |
104c1213 | 1138 | int i; |
f976f6d4 | 1139 | struct value *tempval; |
c906108c SS |
1140 | struct cmd_list_element *cmd; |
1141 | struct agent_expr *aexpr; | |
236f1d4d SS |
1142 | |
1143 | for (; action; action = action->next) | |
c906108c SS |
1144 | { |
1145 | QUIT; /* allow user to bail out with ^C */ | |
a7bdde9e | 1146 | action_exp = action->line; |
104c1213 | 1147 | while (isspace ((int) *action_exp)) |
c906108c SS |
1148 | action_exp++; |
1149 | ||
c906108c SS |
1150 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
1151 | if (cmd == 0) | |
8a3fe4f8 | 1152 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 1153 | |
bbaca940 | 1154 | if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c | 1155 | { |
c5aa993b JM |
1156 | do |
1157 | { /* repeat over a comma-separated list */ | |
1158 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 1159 | while (isspace ((int) *action_exp)) |
c5aa993b | 1160 | action_exp++; |
c906108c | 1161 | |
c5aa993b JM |
1162 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1163 | { | |
a6d9a66e | 1164 | for (i = 0; i < gdbarch_num_regs (t->gdbarch); i++) |
c5aa993b JM |
1165 | add_register (collect, i); |
1166 | action_exp = strchr (action_exp, ','); /* more? */ | |
1167 | } | |
1168 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1169 | { | |
1170 | add_local_symbols (collect, | |
a6d9a66e | 1171 | t->gdbarch, |
9355b391 | 1172 | tloc->address, |
c5aa993b JM |
1173 | frame_reg, |
1174 | frame_offset, | |
1175 | 'A'); | |
1176 | action_exp = strchr (action_exp, ','); /* more? */ | |
1177 | } | |
1178 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1179 | { | |
1180 | add_local_symbols (collect, | |
a6d9a66e | 1181 | t->gdbarch, |
9355b391 | 1182 | tloc->address, |
c5aa993b JM |
1183 | frame_reg, |
1184 | frame_offset, | |
1185 | 'L'); | |
1186 | action_exp = strchr (action_exp, ','); /* more? */ | |
1187 | } | |
1188 | else | |
1189 | { | |
1190 | unsigned long addr, len; | |
1191 | struct cleanup *old_chain = NULL; | |
1192 | struct cleanup *old_chain1 = NULL; | |
1193 | struct agent_reqs areqs; | |
1194 | ||
75ac9d7b | 1195 | exp = parse_exp_1 (&action_exp, |
9355b391 | 1196 | block_for_pc (tloc->address), 1); |
74b7792f | 1197 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 1198 | |
c5aa993b JM |
1199 | switch (exp->elts[0].opcode) |
1200 | { | |
1201 | case OP_REGISTER: | |
67f3407f DJ |
1202 | { |
1203 | const char *name = &exp->elts[2].string; | |
1204 | ||
a6d9a66e | 1205 | i = user_reg_map_name_to_regnum (t->gdbarch, |
029a67e4 | 1206 | name, strlen (name)); |
67f3407f DJ |
1207 | if (i == -1) |
1208 | internal_error (__FILE__, __LINE__, | |
1209 | _("Register $%s not available"), | |
1210 | name); | |
1211 | if (info_verbose) | |
1212 | printf_filtered ("OP_REGISTER: "); | |
1213 | add_register (collect, i); | |
1214 | break; | |
1215 | } | |
c5aa993b JM |
1216 | |
1217 | case UNOP_MEMVAL: | |
1218 | /* safe because we know it's a simple expression */ | |
1219 | tempval = evaluate_expression (exp); | |
42ae5230 | 1220 | addr = value_address (tempval); |
c5aa993b | 1221 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); |
f50e79a4 | 1222 | add_memrange (collect, memrange_absolute, addr, len); |
c5aa993b JM |
1223 | break; |
1224 | ||
1225 | case OP_VAR_VALUE: | |
1226 | collect_symbol (collect, | |
1227 | exp->elts[2].symbol, | |
a6d9a66e | 1228 | t->gdbarch, |
c5aa993b | 1229 | frame_reg, |
0936ad1d | 1230 | frame_offset, |
9355b391 | 1231 | tloc->address); |
c5aa993b JM |
1232 | break; |
1233 | ||
1234 | default: /* full-fledged expression */ | |
9355b391 | 1235 | aexpr = gen_trace_for_expr (tloc->address, exp); |
c5aa993b | 1236 | |
f23d52e0 | 1237 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
c5aa993b JM |
1238 | |
1239 | ax_reqs (aexpr, &areqs); | |
1240 | if (areqs.flaw != agent_flaw_none) | |
8a3fe4f8 | 1241 | error (_("malformed expression")); |
c5aa993b JM |
1242 | |
1243 | if (areqs.min_height < 0) | |
8a3fe4f8 | 1244 | error (_("gdb: Internal error: expression has min height < 0")); |
c5aa993b | 1245 | if (areqs.max_height > 20) |
8a3fe4f8 | 1246 | error (_("expression too complicated, try simplifying")); |
c5aa993b JM |
1247 | |
1248 | discard_cleanups (old_chain1); | |
1249 | add_aexpr (collect, aexpr); | |
1250 | ||
1251 | /* take care of the registers */ | |
1252 | if (areqs.reg_mask_len > 0) | |
c906108c | 1253 | { |
c5aa993b JM |
1254 | int ndx1; |
1255 | int ndx2; | |
1256 | ||
1257 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) | |
c906108c | 1258 | { |
c5aa993b JM |
1259 | QUIT; /* allow user to bail out with ^C */ |
1260 | if (areqs.reg_mask[ndx1] != 0) | |
1261 | { | |
1262 | /* assume chars have 8 bits */ | |
1263 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
1264 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) | |
1265 | /* it's used -- record it */ | |
d183932d MS |
1266 | add_register (collect, |
1267 | ndx1 * 8 + ndx2); | |
c5aa993b | 1268 | } |
c906108c SS |
1269 | } |
1270 | } | |
c5aa993b JM |
1271 | break; |
1272 | } /* switch */ | |
1273 | do_cleanups (old_chain); | |
1274 | } /* do */ | |
1275 | } | |
1276 | while (action_exp && *action_exp++ == ','); | |
1277 | } /* if */ | |
6da95a67 SS |
1278 | else if (cmd_cfunc_eq (cmd, teval_pseudocommand)) |
1279 | { | |
1280 | do | |
1281 | { /* repeat over a comma-separated list */ | |
1282 | QUIT; /* allow user to bail out with ^C */ | |
1283 | while (isspace ((int) *action_exp)) | |
1284 | action_exp++; | |
1285 | ||
1286 | { | |
1287 | unsigned long addr, len; | |
1288 | struct cleanup *old_chain = NULL; | |
1289 | struct cleanup *old_chain1 = NULL; | |
1290 | struct agent_reqs areqs; | |
1291 | ||
1292 | exp = parse_exp_1 (&action_exp, | |
9355b391 | 1293 | block_for_pc (tloc->address), 1); |
6da95a67 SS |
1294 | old_chain = make_cleanup (free_current_contents, &exp); |
1295 | ||
9355b391 | 1296 | aexpr = gen_eval_for_expr (tloc->address, exp); |
6da95a67 SS |
1297 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
1298 | ||
1299 | ax_reqs (aexpr, &areqs); | |
1300 | if (areqs.flaw != agent_flaw_none) | |
1301 | error (_("malformed expression")); | |
1302 | ||
1303 | if (areqs.min_height < 0) | |
1304 | error (_("gdb: Internal error: expression has min height < 0")); | |
1305 | if (areqs.max_height > 20) | |
1306 | error (_("expression too complicated, try simplifying")); | |
1307 | ||
1308 | discard_cleanups (old_chain1); | |
1309 | /* Even though we're not officially collecting, add | |
1310 | to the collect list anyway. */ | |
1311 | add_aexpr (collect, aexpr); | |
1312 | ||
1313 | do_cleanups (old_chain); | |
1314 | } /* do */ | |
1315 | } | |
1316 | while (action_exp && *action_exp++ == ','); | |
1317 | } /* if */ | |
bbaca940 | 1318 | else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 1319 | { |
a7bdde9e VP |
1320 | /* We check against nested while-stepping when setting |
1321 | breakpoint action, so no way to run into nested | |
1322 | here. */ | |
1323 | gdb_assert (stepping_list); | |
1324 | ||
1325 | encode_actions_1 (action->body_list[0], t, tloc, frame_reg, frame_offset, | |
1326 | stepping_list, NULL); | |
c906108c | 1327 | } |
a7bdde9e VP |
1328 | else |
1329 | error (_("Invalid tracepoint command '%s'"), action->line); | |
1330 | } /* for */ | |
1331 | } | |
1332 | ||
1333 | /* Render all actions into gdb protocol. */ | |
1334 | /*static*/ void | |
1335 | encode_actions (struct breakpoint *t, struct bp_location *tloc, | |
1336 | char ***tdp_actions, char ***stepping_actions) | |
1337 | { | |
1338 | static char tdp_buff[2048], step_buff[2048]; | |
1339 | char *default_collect_line = NULL; | |
1340 | struct command_line *actions; | |
1341 | struct command_line *default_collect_action = NULL; | |
1342 | int frame_reg; | |
1343 | LONGEST frame_offset; | |
1344 | struct cleanup *back_to; | |
1345 | ||
1346 | back_to = make_cleanup (null_cleanup, NULL); | |
1347 | ||
1348 | clear_collection_list (&tracepoint_list); | |
1349 | clear_collection_list (&stepping_list); | |
1350 | ||
1351 | *tdp_actions = NULL; | |
1352 | *stepping_actions = NULL; | |
1353 | ||
1354 | gdbarch_virtual_frame_pointer (t->gdbarch, | |
1355 | t->loc->address, &frame_reg, &frame_offset); | |
1356 | ||
1357 | actions = t->commands; | |
1358 | ||
1359 | /* If there are default expressions to collect, make up a collect | |
1360 | action and prepend to the action list to encode. Note that since | |
1361 | validation is per-tracepoint (local var "xyz" might be valid for | |
1362 | one tracepoint and not another, etc), we make up the action on | |
1363 | the fly, and don't cache it. */ | |
1364 | if (*default_collect) | |
1365 | { | |
1366 | char *line; | |
1367 | enum actionline_type linetype; | |
1368 | ||
1369 | default_collect_line = xstrprintf ("collect %s", default_collect); | |
1370 | make_cleanup (xfree, default_collect_line); | |
1371 | ||
1372 | line = default_collect_line; | |
1373 | linetype = validate_actionline (&line, t); | |
1374 | if (linetype != BADLINE) | |
c906108c | 1375 | { |
a7bdde9e VP |
1376 | default_collect_action = xmalloc (sizeof (struct command_line)); |
1377 | make_cleanup (xfree, default_collect_action); | |
1378 | default_collect_action->next = t->commands; | |
1379 | default_collect_action->line = line; | |
1380 | actions = default_collect_action; | |
c906108c | 1381 | } |
a7bdde9e VP |
1382 | } |
1383 | encode_actions_1 (actions, t, tloc, frame_reg, frame_offset, | |
1384 | &tracepoint_list, &stepping_list); | |
1385 | ||
c5aa993b JM |
1386 | memrange_sortmerge (&tracepoint_list); |
1387 | memrange_sortmerge (&stepping_list); | |
c906108c | 1388 | |
a7bdde9e | 1389 | *tdp_actions = stringify_collection_list (&tracepoint_list, |
d183932d | 1390 | tdp_buff); |
a7bdde9e | 1391 | *stepping_actions = stringify_collection_list (&stepping_list, |
d183932d | 1392 | step_buff); |
236f1d4d | 1393 | |
a7bdde9e | 1394 | do_cleanups (back_to); |
c906108c SS |
1395 | } |
1396 | ||
1397 | static void | |
fba45db2 | 1398 | add_aexpr (struct collection_list *collect, struct agent_expr *aexpr) |
c906108c SS |
1399 | { |
1400 | if (collect->next_aexpr_elt >= collect->aexpr_listsize) | |
1401 | { | |
1402 | collect->aexpr_list = | |
1403 | xrealloc (collect->aexpr_list, | |
c5aa993b | 1404 | 2 * collect->aexpr_listsize * sizeof (struct agent_expr *)); |
c906108c SS |
1405 | collect->aexpr_listsize *= 2; |
1406 | } | |
1407 | collect->aexpr_list[collect->next_aexpr_elt] = aexpr; | |
1408 | collect->next_aexpr_elt++; | |
1409 | } | |
1410 | ||
c906108c | 1411 | /* tstart command: |
c5aa993b | 1412 | |
c906108c SS |
1413 | Tell target to clear any previous trace experiment. |
1414 | Walk the list of tracepoints, and send them (and their actions) | |
1415 | to the target. If no errors, | |
1416 | Tell target to start a new trace experiment. */ | |
1417 | ||
1418 | static void | |
fba45db2 | 1419 | trace_start_command (char *args, int from_tty) |
d183932d | 1420 | { |
f61e138d | 1421 | char buf[2048]; |
1042e4c0 SS |
1422 | VEC(breakpoint_p) *tp_vec = NULL; |
1423 | int ix; | |
1424 | struct breakpoint *t; | |
f61e138d | 1425 | struct trace_state_variable *tsv; |
d5551862 | 1426 | int any_downloaded = 0; |
c906108c | 1427 | |
d183932d | 1428 | dont_repeat (); /* Like "run", dangerous to repeat accidentally. */ |
c5aa993b | 1429 | |
35b1e5cc SS |
1430 | target_trace_init (); |
1431 | ||
1432 | tp_vec = all_tracepoints (); | |
1433 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
7a697b8d | 1434 | { |
35b1e5cc SS |
1435 | t->number_on_target = 0; |
1436 | target_download_tracepoint (t); | |
1437 | t->number_on_target = t->number; | |
1438 | any_downloaded = 1; | |
7a697b8d | 1439 | } |
35b1e5cc SS |
1440 | VEC_free (breakpoint_p, tp_vec); |
1441 | ||
1442 | /* No point in tracing without any tracepoints... */ | |
1443 | if (!any_downloaded) | |
1444 | error ("No tracepoints downloaded, not starting trace"); | |
1445 | ||
00bf0b85 | 1446 | /* Send down all the trace state variables too. */ |
35b1e5cc | 1447 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) |
782b2b07 | 1448 | { |
00bf0b85 | 1449 | target_download_trace_state_variable (tsv); |
782b2b07 | 1450 | } |
35b1e5cc SS |
1451 | |
1452 | /* Tell target to treat text-like sections as transparent. */ | |
1453 | target_trace_set_readonly_regions (); | |
4daf5ac0 SS |
1454 | /* Set some mode flags. */ |
1455 | target_set_disconnected_tracing (disconnected_tracing); | |
1456 | target_set_circular_trace_buffer (circular_trace_buffer); | |
1042e4c0 | 1457 | |
35b1e5cc SS |
1458 | /* Now insert traps and begin collecting data. */ |
1459 | target_trace_start (); | |
1042e4c0 | 1460 | |
35b1e5cc SS |
1461 | /* Reset our local state. */ |
1462 | set_traceframe_num (-1); | |
1463 | set_tracepoint_num (-1); | |
1464 | set_traceframe_context (NULL); | |
00bf0b85 | 1465 | current_trace_status()->running = 1; |
1042e4c0 SS |
1466 | } |
1467 | ||
c906108c SS |
1468 | /* tstop command */ |
1469 | static void | |
fba45db2 | 1470 | trace_stop_command (char *args, int from_tty) |
d183932d | 1471 | { |
35b1e5cc | 1472 | stop_tracing (); |
c906108c SS |
1473 | } |
1474 | ||
d5551862 SS |
1475 | void |
1476 | stop_tracing () | |
1477 | { | |
35b1e5cc | 1478 | target_trace_stop (); |
00bf0b85 SS |
1479 | /* should change in response to reply? */ |
1480 | current_trace_status ()->running = 0; | |
d5551862 SS |
1481 | } |
1482 | ||
c906108c SS |
1483 | /* tstatus command */ |
1484 | static void | |
fba45db2 | 1485 | trace_status_command (char *args, int from_tty) |
d183932d | 1486 | { |
00bf0b85 SS |
1487 | struct trace_status *ts = current_trace_status (); |
1488 | int status; | |
35b1e5cc | 1489 | |
00bf0b85 SS |
1490 | status = target_get_trace_status (ts); |
1491 | ||
1492 | if (status == -1) | |
1493 | { | |
1494 | if (ts->from_file) | |
1495 | printf_filtered (_("Using a trace file.\n")); | |
1496 | else | |
1497 | { | |
1498 | printf_filtered (_("Trace can not be run on this target.\n")); | |
1499 | return; | |
1500 | } | |
1501 | } | |
1502 | ||
1503 | if (!ts->running_known) | |
1504 | { | |
1505 | printf_filtered (_("Run/stop status is unknown.\n")); | |
1506 | } | |
1507 | else if (ts->running) | |
c906108c | 1508 | { |
35b1e5cc SS |
1509 | printf_filtered (_("Trace is running on the target.\n")); |
1510 | if (disconnected_tracing) | |
1511 | printf_filtered (_("Trace will continue if GDB disconnects.\n")); | |
d3513012 | 1512 | else |
35b1e5cc | 1513 | printf_filtered (_("Trace will stop if GDB disconnects.\n")); |
c906108c SS |
1514 | } |
1515 | else | |
00bf0b85 SS |
1516 | { |
1517 | switch (ts->stop_reason) | |
1518 | { | |
1519 | case trace_never_run: | |
1520 | printf_filtered (_("No trace has been run on the target.\n")); | |
1521 | break; | |
1522 | case tstop_command: | |
1523 | printf_filtered (_("Trace stopped by a tstop command.\n")); | |
1524 | break; | |
1525 | case trace_buffer_full: | |
1526 | printf_filtered (_("Trace stopped because the buffer was full.\n")); | |
1527 | break; | |
1528 | case trace_disconnected: | |
1529 | printf_filtered (_("Trace stopped because of disconnection.\n")); | |
1530 | break; | |
1531 | case tracepoint_passcount: | |
1532 | /* FIXME account for number on target */ | |
1533 | printf_filtered (_("Trace stopped by tracepoint %d.\n"), | |
1534 | ts->stopping_tracepoint); | |
1535 | break; | |
1536 | case trace_stop_reason_unknown: | |
1537 | printf_filtered (_("Trace stopped for an unknown reason.\n")); | |
1538 | break; | |
1539 | default: | |
1540 | printf_filtered (_("Trace stopped for some other reason (%d).\n"), | |
1541 | ts->stop_reason); | |
1542 | break; | |
1543 | } | |
1544 | } | |
1545 | ||
4daf5ac0 SS |
1546 | if (ts->traceframes_created >= 0 |
1547 | && ts->traceframe_count != ts->traceframes_created) | |
1548 | { | |
1549 | printf_filtered (_("Buffer contains %d trace frames (of %d created total).\n"), | |
1550 | ts->traceframe_count, ts->traceframes_created); | |
1551 | } | |
1552 | else if (ts->traceframe_count >= 0) | |
00bf0b85 SS |
1553 | { |
1554 | printf_filtered (_("Collected %d trace frames.\n"), | |
1555 | ts->traceframe_count); | |
1556 | } | |
1557 | ||
4daf5ac0 | 1558 | if (ts->buffer_free >= 0) |
00bf0b85 | 1559 | { |
4daf5ac0 SS |
1560 | if (ts->buffer_size >= 0) |
1561 | { | |
1562 | printf_filtered (_("Trace buffer has %d bytes of %d bytes free"), | |
1563 | ts->buffer_free, ts->buffer_size); | |
1564 | if (ts->buffer_size > 0) | |
1565 | printf_filtered (_(" (%d%% full)"), | |
1566 | ((int) ((((long long) (ts->buffer_size | |
1567 | - ts->buffer_free)) * 100) | |
1568 | / ts->buffer_size))); | |
1569 | printf_filtered (_(".\n")); | |
1570 | } | |
1571 | else | |
1572 | printf_filtered (_("Trace buffer has %d bytes free.\n"), | |
1573 | ts->buffer_free); | |
00bf0b85 | 1574 | } |
35b1e5cc | 1575 | |
00bf0b85 | 1576 | /* Now report on what we're doing with tfind. */ |
35b1e5cc SS |
1577 | if (traceframe_number >= 0) |
1578 | printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"), | |
1579 | traceframe_number, tracepoint_number); | |
1580 | else | |
1581 | printf_filtered (_("Not looking at any trace frame.\n")); | |
c906108c SS |
1582 | } |
1583 | ||
d5551862 SS |
1584 | void |
1585 | disconnect_or_stop_tracing (int from_tty) | |
1586 | { | |
00bf0b85 SS |
1587 | /* It can happen that the target that was tracing went away on its |
1588 | own, and we didn't notice. Get a status update, and if the | |
1589 | current target doesn't even do tracing, then assume it's not | |
1590 | running anymore. */ | |
1591 | if (target_get_trace_status (current_trace_status ()) < 0) | |
1592 | current_trace_status ()->running = 0; | |
1593 | ||
1594 | if (current_trace_status ()->running && from_tty) | |
d5551862 SS |
1595 | { |
1596 | int cont = query (_("Trace is running. Continue tracing after detach? ")); | |
1597 | /* Note that we send the query result without affecting the | |
1598 | user's setting of disconnected_tracing, so that the answer is | |
1599 | a one-time-only. */ | |
1600 | send_disconnected_tracing_value (cont); | |
1601 | ||
1602 | /* Also ensure that we do the equivalent of a tstop command if | |
1603 | tracing is not to continue after the detach. */ | |
1604 | if (!cont) | |
1605 | stop_tracing (); | |
1606 | } | |
1607 | } | |
1608 | ||
d183932d | 1609 | /* Worker function for the various flavors of the tfind command. */ |
c906108c | 1610 | static void |
35b1e5cc SS |
1611 | finish_tfind_command (enum trace_find_type type, int num, |
1612 | ULONGEST addr1, ULONGEST addr2, | |
c2d11a7d | 1613 | int from_tty) |
c906108c SS |
1614 | { |
1615 | int target_frameno = -1, target_tracept = -1; | |
fb14de7b | 1616 | struct frame_id old_frame_id; |
c906108c | 1617 | char *reply; |
d5551862 | 1618 | struct breakpoint *tp; |
c906108c | 1619 | |
fb14de7b | 1620 | old_frame_id = get_frame_id (get_current_frame ()); |
c906108c | 1621 | |
35b1e5cc SS |
1622 | target_frameno = target_trace_find (type, num, addr1, addr2, |
1623 | &target_tracept); | |
1624 | ||
1625 | if (type == tfind_number | |
1626 | && num == -1 | |
1627 | && target_frameno == -1) | |
1628 | { | |
1629 | /* We told the target to get out of tfind mode, and it did. */ | |
1630 | } | |
1631 | else if (target_frameno == -1) | |
1632 | { | |
1633 | /* A request for a non-existant trace frame has failed. | |
1634 | Our response will be different, depending on FROM_TTY: | |
1635 | ||
1636 | If FROM_TTY is true, meaning that this command was | |
1637 | typed interactively by the user, then give an error | |
1638 | and DO NOT change the state of traceframe_number etc. | |
1639 | ||
1640 | However if FROM_TTY is false, meaning that we're either | |
1641 | in a script, a loop, or a user-defined command, then | |
1642 | DON'T give an error, but DO change the state of | |
1643 | traceframe_number etc. to invalid. | |
1644 | ||
1645 | The rationalle is that if you typed the command, you | |
1646 | might just have committed a typo or something, and you'd | |
1647 | like to NOT lose your current debugging state. However | |
1648 | if you're in a user-defined command or especially in a | |
1649 | loop, then you need a way to detect that the command | |
1650 | failed WITHOUT aborting. This allows you to write | |
1651 | scripts that search thru the trace buffer until the end, | |
1652 | and then continue on to do something else. */ | |
1653 | ||
1654 | if (from_tty) | |
1655 | error (_("Target failed to find requested trace frame.")); | |
1656 | else | |
1657 | { | |
1658 | if (info_verbose) | |
1659 | printf_filtered ("End of trace buffer.\n"); | |
1660 | #if 0 /* dubious now? */ | |
1661 | /* The following will not recurse, since it's | |
1662 | special-cased. */ | |
1663 | trace_find_command ("-1", from_tty); | |
1664 | #endif | |
1665 | } | |
1666 | } | |
1667 | ||
d5551862 SS |
1668 | tp = get_tracepoint_by_number_on_target (target_tracept); |
1669 | ||
35f196d9 | 1670 | reinit_frame_cache (); |
c906108c | 1671 | registers_changed (); |
2f4d8875 | 1672 | target_dcache_invalidate (); |
c906108c | 1673 | set_traceframe_num (target_frameno); |
d5551862 | 1674 | set_tracepoint_num (tp ? tp->number : target_tracept); |
c906108c | 1675 | if (target_frameno == -1) |
fb14de7b | 1676 | set_traceframe_context (NULL); |
c906108c | 1677 | else |
fb14de7b | 1678 | set_traceframe_context (get_current_frame ()); |
c906108c | 1679 | |
00bf0b85 SS |
1680 | /* If we're in nonstop mode and getting out of looking at trace |
1681 | frames, there won't be any current frame to go back to and | |
1682 | display. */ | |
1683 | if (from_tty | |
1684 | && (has_stack_frames () || traceframe_number >= 0)) | |
c906108c | 1685 | { |
0faf0076 | 1686 | enum print_what print_what; |
c906108c SS |
1687 | |
1688 | /* NOTE: in immitation of the step command, try to determine | |
d183932d MS |
1689 | whether we have made a transition from one function to |
1690 | another. If so, we'll print the "stack frame" (ie. the new | |
1691 | function and it's arguments) -- otherwise we'll just show the | |
fb14de7b UW |
1692 | new source line. */ |
1693 | ||
1694 | if (frame_id_eq (old_frame_id, | |
1695 | get_frame_id (get_current_frame ()))) | |
0faf0076 | 1696 | print_what = SRC_LINE; |
c906108c | 1697 | else |
0faf0076 | 1698 | print_what = SRC_AND_LOC; |
c906108c | 1699 | |
b04f3ab4 | 1700 | print_stack_frame (get_selected_frame (NULL), 1, print_what); |
c906108c SS |
1701 | do_displays (); |
1702 | } | |
1703 | } | |
1704 | ||
1705 | /* trace_find_command takes a trace frame number n, | |
1706 | sends "QTFrame:<n>" to the target, | |
1707 | and accepts a reply that may contain several optional pieces | |
1708 | of information: a frame number, a tracepoint number, and an | |
1709 | indication of whether this is a trap frame or a stepping frame. | |
1710 | ||
1711 | The minimal response is just "OK" (which indicates that the | |
1712 | target does not give us a frame number or a tracepoint number). | |
1713 | Instead of that, the target may send us a string containing | |
1714 | any combination of: | |
c5aa993b JM |
1715 | F<hexnum> (gives the selected frame number) |
1716 | T<hexnum> (gives the selected tracepoint number) | |
1717 | */ | |
c906108c SS |
1718 | |
1719 | /* tfind command */ | |
1720 | static void | |
fba45db2 | 1721 | trace_find_command (char *args, int from_tty) |
d183932d | 1722 | { /* this should only be called with a numeric argument */ |
c906108c | 1723 | int frameno = -1; |
c906108c | 1724 | |
00bf0b85 | 1725 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc SS |
1726 | error ("May not look at trace frames while trace is running."); |
1727 | ||
1728 | if (args == 0 || *args == 0) | |
1729 | { /* TFIND with no args means find NEXT trace frame. */ | |
1730 | if (traceframe_number == -1) | |
1731 | frameno = 0; /* "next" is first one */ | |
1732 | else | |
1733 | frameno = traceframe_number + 1; | |
1734 | } | |
1735 | else if (0 == strcmp (args, "-")) | |
c906108c | 1736 | { |
35b1e5cc SS |
1737 | if (traceframe_number == -1) |
1738 | error (_("not debugging trace buffer")); | |
1739 | else if (from_tty && traceframe_number == 0) | |
1740 | error (_("already at start of trace buffer")); | |
1741 | ||
1742 | frameno = traceframe_number - 1; | |
1743 | } | |
1744 | /* A hack to work around eval's need for fp to have been collected. */ | |
1745 | else if (0 == strcmp (args, "-1")) | |
1746 | frameno = -1; | |
1747 | else | |
1748 | frameno = parse_and_eval_long (args); | |
c906108c | 1749 | |
35b1e5cc SS |
1750 | if (frameno < -1) |
1751 | error (_("invalid input (%d is less than zero)"), frameno); | |
c906108c | 1752 | |
35b1e5cc | 1753 | finish_tfind_command (tfind_number, frameno, 0, 0, from_tty); |
c906108c SS |
1754 | } |
1755 | ||
1756 | /* tfind end */ | |
1757 | static void | |
fba45db2 | 1758 | trace_find_end_command (char *args, int from_tty) |
c906108c SS |
1759 | { |
1760 | trace_find_command ("-1", from_tty); | |
1761 | } | |
1762 | ||
1763 | /* tfind none */ | |
1764 | static void | |
fba45db2 | 1765 | trace_find_none_command (char *args, int from_tty) |
c906108c SS |
1766 | { |
1767 | trace_find_command ("-1", from_tty); | |
1768 | } | |
1769 | ||
1770 | /* tfind start */ | |
1771 | static void | |
fba45db2 | 1772 | trace_find_start_command (char *args, int from_tty) |
c906108c SS |
1773 | { |
1774 | trace_find_command ("0", from_tty); | |
1775 | } | |
1776 | ||
1777 | /* tfind pc command */ | |
1778 | static void | |
fba45db2 | 1779 | trace_find_pc_command (char *args, int from_tty) |
d183932d | 1780 | { |
c906108c | 1781 | CORE_ADDR pc; |
104c1213 | 1782 | char tmp[40]; |
c906108c | 1783 | |
00bf0b85 | 1784 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 1785 | error ("May not look at trace frames while trace is running."); |
c906108c | 1786 | |
35b1e5cc SS |
1787 | if (args == 0 || *args == 0) |
1788 | pc = regcache_read_pc (get_current_regcache ()); | |
c906108c | 1789 | else |
35b1e5cc SS |
1790 | pc = parse_and_eval_address (args); |
1791 | ||
1792 | finish_tfind_command (tfind_pc, 0, pc, 0, from_tty); | |
c906108c SS |
1793 | } |
1794 | ||
1795 | /* tfind tracepoint command */ | |
1796 | static void | |
fba45db2 | 1797 | trace_find_tracepoint_command (char *args, int from_tty) |
d183932d | 1798 | { |
c906108c | 1799 | int tdp; |
d5551862 | 1800 | struct breakpoint *tp; |
c906108c | 1801 | |
00bf0b85 | 1802 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 1803 | error ("May not look at trace frames while trace is running."); |
383e5f85 | 1804 | |
35b1e5cc SS |
1805 | if (args == 0 || *args == 0) |
1806 | { | |
1807 | if (tracepoint_number == -1) | |
1808 | error (_("No current tracepoint -- please supply an argument.")); | |
c906108c | 1809 | else |
35b1e5cc | 1810 | tdp = tracepoint_number; /* default is current TDP */ |
c906108c SS |
1811 | } |
1812 | else | |
35b1e5cc SS |
1813 | tdp = parse_and_eval_long (args); |
1814 | ||
1815 | /* If we have the tracepoint on hand, use the number that the | |
1816 | target knows about (which may be different if we disconnected | |
1817 | and reconnected). */ | |
1818 | tp = get_tracepoint (tdp); | |
1819 | if (tp) | |
1820 | tdp = tp->number_on_target; | |
1821 | ||
1822 | finish_tfind_command (tfind_tp, tdp, 0, 0, from_tty); | |
c906108c SS |
1823 | } |
1824 | ||
1825 | /* TFIND LINE command: | |
c5aa993b | 1826 | |
c906108c | 1827 | This command will take a sourceline for argument, just like BREAK |
d183932d | 1828 | or TRACE (ie. anything that "decode_line_1" can handle). |
c5aa993b | 1829 | |
c906108c SS |
1830 | With no argument, this command will find the next trace frame |
1831 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
1832 | ||
1833 | static void | |
fba45db2 | 1834 | trace_find_line_command (char *args, int from_tty) |
d183932d | 1835 | { |
c906108c SS |
1836 | static CORE_ADDR start_pc, end_pc; |
1837 | struct symtabs_and_lines sals; | |
1838 | struct symtab_and_line sal; | |
c906108c | 1839 | struct cleanup *old_chain; |
104c1213 | 1840 | char startpc_str[40], endpc_str[40]; |
c906108c | 1841 | |
00bf0b85 | 1842 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 1843 | error ("May not look at trace frames while trace is running."); |
5af949e3 | 1844 | |
35b1e5cc SS |
1845 | if (args == 0 || *args == 0) |
1846 | { | |
1847 | sal = find_pc_line (get_frame_pc (get_current_frame ()), 0); | |
1848 | sals.nelts = 1; | |
1849 | sals.sals = (struct symtab_and_line *) | |
1850 | xmalloc (sizeof (struct symtab_and_line)); | |
1851 | sals.sals[0] = sal; | |
1852 | } | |
1853 | else | |
1854 | { | |
1855 | sals = decode_line_spec (args, 1); | |
1856 | sal = sals.sals[0]; | |
1857 | } | |
1858 | ||
1859 | old_chain = make_cleanup (xfree, sals.sals); | |
1860 | if (sal.symtab == 0) | |
1861 | { | |
1862 | printf_filtered ("TFIND: No line number information available"); | |
1863 | if (sal.pc != 0) | |
c906108c | 1864 | { |
35b1e5cc SS |
1865 | /* This is useful for "info line *0x7f34". If we can't |
1866 | tell the user about a source line, at least let them | |
1867 | have the symbolic address. */ | |
1868 | printf_filtered (" for address "); | |
1869 | wrap_here (" "); | |
1870 | print_address (get_current_arch (), sal.pc, gdb_stdout); | |
1871 | printf_filtered (";\n -- will attempt to find by PC. \n"); | |
1872 | } | |
1873 | else | |
1874 | { | |
1875 | printf_filtered (".\n"); | |
1876 | return; /* No line, no PC; what can we do? */ | |
1877 | } | |
c906108c | 1878 | } |
35b1e5cc SS |
1879 | else if (sal.line > 0 |
1880 | && find_line_pc_range (sal, &start_pc, &end_pc)) | |
1881 | { | |
1882 | if (start_pc == end_pc) | |
1883 | { | |
1884 | printf_filtered ("Line %d of \"%s\"", | |
1885 | sal.line, sal.symtab->filename); | |
1886 | wrap_here (" "); | |
1887 | printf_filtered (" is at address "); | |
1888 | print_address (get_current_arch (), start_pc, gdb_stdout); | |
1889 | wrap_here (" "); | |
1890 | printf_filtered (" but contains no code.\n"); | |
1891 | sal = find_pc_line (start_pc, 0); | |
1892 | if (sal.line > 0 | |
1893 | && find_line_pc_range (sal, &start_pc, &end_pc) | |
1894 | && start_pc != end_pc) | |
1895 | printf_filtered ("Attempting to find line %d instead.\n", | |
1896 | sal.line); | |
1897 | else | |
1898 | error (_("Cannot find a good line.")); | |
1899 | } | |
1900 | } | |
1901 | else | |
1902 | /* Is there any case in which we get here, and have an address | |
1903 | which the user would want to see? If we have debugging | |
1904 | symbols and no line numbers? */ | |
1905 | error (_("Line number %d is out of range for \"%s\"."), | |
1906 | sal.line, sal.symtab->filename); | |
1907 | ||
1908 | /* Find within range of stated line. */ | |
1909 | if (args && *args) | |
1910 | finish_tfind_command (tfind_range, 0, start_pc, end_pc - 1, from_tty); | |
c906108c | 1911 | else |
35b1e5cc SS |
1912 | finish_tfind_command (tfind_outside, 0, start_pc, end_pc - 1, from_tty); |
1913 | do_cleanups (old_chain); | |
c906108c SS |
1914 | } |
1915 | ||
1916 | /* tfind range command */ | |
1917 | static void | |
fba45db2 | 1918 | trace_find_range_command (char *args, int from_tty) |
104c1213 | 1919 | { |
c906108c | 1920 | static CORE_ADDR start, stop; |
104c1213 | 1921 | char start_str[40], stop_str[40]; |
c906108c SS |
1922 | char *tmp; |
1923 | ||
00bf0b85 | 1924 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 1925 | error ("May not look at trace frames while trace is running."); |
c906108c | 1926 | |
35b1e5cc SS |
1927 | if (args == 0 || *args == 0) |
1928 | { /* XXX FIXME: what should default behavior be? */ | |
1929 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); | |
1930 | return; | |
1931 | } | |
c906108c | 1932 | |
35b1e5cc SS |
1933 | if (0 != (tmp = strchr (args, ','))) |
1934 | { | |
1935 | *tmp++ = '\0'; /* terminate start address */ | |
1936 | while (isspace ((int) *tmp)) | |
1937 | tmp++; | |
1938 | start = parse_and_eval_address (args); | |
1939 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
1940 | } |
1941 | else | |
35b1e5cc SS |
1942 | { /* no explicit end address? */ |
1943 | start = parse_and_eval_address (args); | |
1944 | stop = start + 1; /* ??? */ | |
1945 | } | |
1946 | ||
1947 | finish_tfind_command (tfind_range, 0, start, stop, from_tty); | |
c906108c SS |
1948 | } |
1949 | ||
1950 | /* tfind outside command */ | |
1951 | static void | |
fba45db2 | 1952 | trace_find_outside_command (char *args, int from_tty) |
104c1213 | 1953 | { |
c906108c | 1954 | CORE_ADDR start, stop; |
104c1213 | 1955 | char start_str[40], stop_str[40]; |
c906108c SS |
1956 | char *tmp; |
1957 | ||
00bf0b85 | 1958 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 1959 | error ("May not look at trace frames while trace is running."); |
c906108c | 1960 | |
35b1e5cc SS |
1961 | if (args == 0 || *args == 0) |
1962 | { /* XXX FIXME: what should default behavior be? */ | |
1963 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); | |
1964 | return; | |
1965 | } | |
c906108c | 1966 | |
35b1e5cc SS |
1967 | if (0 != (tmp = strchr (args, ','))) |
1968 | { | |
1969 | *tmp++ = '\0'; /* terminate start address */ | |
1970 | while (isspace ((int) *tmp)) | |
1971 | tmp++; | |
1972 | start = parse_and_eval_address (args); | |
1973 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
1974 | } |
1975 | else | |
35b1e5cc SS |
1976 | { /* no explicit end address? */ |
1977 | start = parse_and_eval_address (args); | |
1978 | stop = start + 1; /* ??? */ | |
1979 | } | |
1980 | ||
1981 | finish_tfind_command (tfind_outside, 0, start, stop, from_tty); | |
c906108c SS |
1982 | } |
1983 | ||
c906108c SS |
1984 | /* info scope command: list the locals for a scope. */ |
1985 | static void | |
fba45db2 | 1986 | scope_info (char *args, int from_tty) |
c906108c | 1987 | { |
c906108c SS |
1988 | struct symtabs_and_lines sals; |
1989 | struct symbol *sym; | |
1990 | struct minimal_symbol *msym; | |
1991 | struct block *block; | |
1992 | char **canonical, *symname, *save_args = args; | |
de4f826b DC |
1993 | struct dict_iterator iter; |
1994 | int j, count = 0; | |
768a979c UW |
1995 | struct gdbarch *gdbarch; |
1996 | int regno; | |
c906108c SS |
1997 | |
1998 | if (args == 0 || *args == 0) | |
8a3fe4f8 | 1999 | error (_("requires an argument (function, line or *addr) to define a scope")); |
c906108c | 2000 | |
68219205 | 2001 | sals = decode_line_1 (&args, 1, NULL, 0, &canonical, NULL); |
c906108c | 2002 | if (sals.nelts == 0) |
450bd37b | 2003 | return; /* presumably decode_line_1 has already warned */ |
c906108c SS |
2004 | |
2005 | /* Resolve line numbers to PC */ | |
2006 | resolve_sal_pc (&sals.sals[0]); | |
2007 | block = block_for_pc (sals.sals[0].pc); | |
2008 | ||
2009 | while (block != 0) | |
2010 | { | |
c5aa993b | 2011 | QUIT; /* allow user to bail out with ^C */ |
de4f826b | 2012 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 2013 | { |
c5aa993b | 2014 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
2015 | if (count == 0) |
2016 | printf_filtered ("Scope for %s:\n", save_args); | |
2017 | count++; | |
e88c90f2 | 2018 | |
3567439c | 2019 | symname = SYMBOL_PRINT_NAME (sym); |
c906108c | 2020 | if (symname == NULL || *symname == '\0') |
c5aa993b | 2021 | continue; /* probably botched, certainly useless */ |
c906108c | 2022 | |
768a979c UW |
2023 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
2024 | ||
c906108c | 2025 | printf_filtered ("Symbol %s is ", symname); |
c5aa993b JM |
2026 | switch (SYMBOL_CLASS (sym)) |
2027 | { | |
2028 | default: | |
2029 | case LOC_UNDEF: /* messed up symbol? */ | |
2030 | printf_filtered ("a bogus symbol, class %d.\n", | |
2031 | SYMBOL_CLASS (sym)); | |
2032 | count--; /* don't count this one */ | |
2033 | continue; | |
2034 | case LOC_CONST: | |
104c1213 | 2035 | printf_filtered ("a constant with value %ld (0x%lx)", |
c5aa993b JM |
2036 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); |
2037 | break; | |
2038 | case LOC_CONST_BYTES: | |
2039 | printf_filtered ("constant bytes: "); | |
2040 | if (SYMBOL_TYPE (sym)) | |
2041 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) | |
2042 | fprintf_filtered (gdb_stdout, " %02x", | |
2043 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); | |
2044 | break; | |
2045 | case LOC_STATIC: | |
2046 | printf_filtered ("in static storage at address "); | |
5af949e3 UW |
2047 | printf_filtered ("%s", paddress (gdbarch, |
2048 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2049 | break; |
2050 | case LOC_REGISTER: | |
768a979c UW |
2051 | /* GDBARCH is the architecture associated with the objfile |
2052 | the symbol is defined in; the target architecture may be | |
2053 | different, and may provide additional registers. However, | |
2054 | we do not know the target architecture at this point. | |
2055 | We assume the objfile architecture will contain all the | |
2056 | standard registers that occur in debug info in that | |
2057 | objfile. */ | |
2058 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
2059 | ||
2a2d4dc3 AS |
2060 | if (SYMBOL_IS_ARGUMENT (sym)) |
2061 | printf_filtered ("an argument in register $%s", | |
768a979c | 2062 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
2063 | else |
2064 | printf_filtered ("a local variable in register $%s", | |
768a979c | 2065 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2066 | break; |
2067 | case LOC_ARG: | |
c5aa993b JM |
2068 | printf_filtered ("an argument at stack/frame offset %ld", |
2069 | SYMBOL_VALUE (sym)); | |
2070 | break; | |
2071 | case LOC_LOCAL: | |
2072 | printf_filtered ("a local variable at frame offset %ld", | |
2073 | SYMBOL_VALUE (sym)); | |
2074 | break; | |
2075 | case LOC_REF_ARG: | |
2076 | printf_filtered ("a reference argument at offset %ld", | |
2077 | SYMBOL_VALUE (sym)); | |
2078 | break; | |
c5aa993b | 2079 | case LOC_REGPARM_ADDR: |
768a979c UW |
2080 | /* Note comment at LOC_REGISTER. */ |
2081 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
c5aa993b | 2082 | printf_filtered ("the address of an argument, in register $%s", |
768a979c | 2083 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2084 | break; |
2085 | case LOC_TYPEDEF: | |
2086 | printf_filtered ("a typedef.\n"); | |
2087 | continue; | |
2088 | case LOC_LABEL: | |
2089 | printf_filtered ("a label at address "); | |
5af949e3 UW |
2090 | printf_filtered ("%s", paddress (gdbarch, |
2091 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2092 | break; |
2093 | case LOC_BLOCK: | |
2094 | printf_filtered ("a function at address "); | |
5af949e3 UW |
2095 | printf_filtered ("%s", |
2096 | paddress (gdbarch, BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))); | |
c5aa993b | 2097 | break; |
c5aa993b | 2098 | case LOC_UNRESOLVED: |
3567439c | 2099 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), |
450bd37b | 2100 | NULL, NULL); |
c5aa993b JM |
2101 | if (msym == NULL) |
2102 | printf_filtered ("Unresolved Static"); | |
2103 | else | |
2104 | { | |
2105 | printf_filtered ("static storage at address "); | |
5af949e3 UW |
2106 | printf_filtered ("%s", |
2107 | paddress (gdbarch, SYMBOL_VALUE_ADDRESS (msym))); | |
c5aa993b JM |
2108 | } |
2109 | break; | |
2110 | case LOC_OPTIMIZED_OUT: | |
2111 | printf_filtered ("optimized out.\n"); | |
2112 | continue; | |
450bd37b | 2113 | case LOC_COMPUTED: |
768a979c | 2114 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, gdb_stdout); |
450bd37b | 2115 | break; |
c5aa993b | 2116 | } |
c906108c | 2117 | if (SYMBOL_TYPE (sym)) |
c5aa993b | 2118 | printf_filtered (", length %d.\n", |
450bd37b | 2119 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); |
c906108c SS |
2120 | } |
2121 | if (BLOCK_FUNCTION (block)) | |
2122 | break; | |
2123 | else | |
2124 | block = BLOCK_SUPERBLOCK (block); | |
2125 | } | |
2126 | if (count <= 0) | |
2127 | printf_filtered ("Scope for %s contains no locals or arguments.\n", | |
2128 | save_args); | |
2129 | } | |
2130 | ||
2131 | /* worker function (cleanup) */ | |
2132 | static void | |
710b33bd | 2133 | replace_comma (void *data) |
c906108c | 2134 | { |
710b33bd | 2135 | char *comma = data; |
c906108c SS |
2136 | *comma = ','; |
2137 | } | |
2138 | ||
2139 | /* tdump command */ | |
2140 | static void | |
fba45db2 | 2141 | trace_dump_command (char *args, int from_tty) |
c906108c | 2142 | { |
515630c5 UW |
2143 | struct regcache *regcache; |
2144 | struct gdbarch *gdbarch; | |
1042e4c0 | 2145 | struct breakpoint *t; |
a7bdde9e | 2146 | struct command_line *action; |
c5aa993b JM |
2147 | char *action_exp, *next_comma; |
2148 | struct cleanup *old_cleanups; | |
2149 | int stepping_actions = 0; | |
2150 | int stepping_frame = 0; | |
9355b391 | 2151 | struct bp_location *loc; |
c906108c | 2152 | |
c906108c SS |
2153 | if (tracepoint_number == -1) |
2154 | { | |
8a3fe4f8 | 2155 | warning (_("No current trace frame.")); |
c906108c SS |
2156 | return; |
2157 | } | |
2158 | ||
1042e4c0 | 2159 | t = get_tracepoint (tracepoint_number); |
c906108c SS |
2160 | |
2161 | if (t == NULL) | |
8a3fe4f8 | 2162 | error (_("No known tracepoint matches 'current' tracepoint #%d."), |
c906108c SS |
2163 | tracepoint_number); |
2164 | ||
2165 | old_cleanups = make_cleanup (null_cleanup, NULL); | |
2166 | ||
c5aa993b | 2167 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", |
c906108c SS |
2168 | tracepoint_number, traceframe_number); |
2169 | ||
2170 | /* The current frame is a trap frame if the frame PC is equal | |
2171 | to the tracepoint PC. If not, then the current frame was | |
2172 | collected during single-stepping. */ | |
2173 | ||
515630c5 UW |
2174 | regcache = get_current_regcache (); |
2175 | gdbarch = get_regcache_arch (regcache); | |
2176 | ||
9355b391 SS |
2177 | /* If the traceframe's address matches any of the tracepoint's |
2178 | locations, assume it is a direct hit rather than a while-stepping | |
2179 | frame. (FIXME this is not reliable, should record each frame's | |
2180 | type.) */ | |
2181 | stepping_frame = 1; | |
2182 | for (loc = t->loc; loc; loc = loc->next) | |
2183 | if (loc->address == regcache_read_pc (regcache)) | |
2184 | stepping_frame = 0; | |
c906108c | 2185 | |
a7bdde9e | 2186 | for (action = t->commands; action; action = action->next) |
c906108c SS |
2187 | { |
2188 | struct cmd_list_element *cmd; | |
2189 | ||
c5aa993b | 2190 | QUIT; /* allow user to bail out with ^C */ |
a7bdde9e | 2191 | action_exp = action->line; |
104c1213 | 2192 | while (isspace ((int) *action_exp)) |
c906108c SS |
2193 | action_exp++; |
2194 | ||
2195 | /* The collection actions to be done while stepping are | |
c5aa993b | 2196 | bracketed by the commands "while-stepping" and "end". */ |
c906108c SS |
2197 | |
2198 | if (*action_exp == '#') /* comment line */ | |
2199 | continue; | |
2200 | ||
2201 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
2202 | if (cmd == 0) | |
8a3fe4f8 | 2203 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 2204 | |
bbaca940 | 2205 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 2206 | stepping_actions = 1; |
bbaca940 | 2207 | else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand)) |
c906108c | 2208 | stepping_actions = 0; |
bbaca940 | 2209 | else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c SS |
2210 | { |
2211 | /* Display the collected data. | |
d183932d MS |
2212 | For the trap frame, display only what was collected at |
2213 | the trap. Likewise for stepping frames, display only | |
2214 | what was collected while stepping. This means that the | |
2215 | two boolean variables, STEPPING_FRAME and | |
2216 | STEPPING_ACTIONS should be equal. */ | |
c906108c SS |
2217 | if (stepping_frame == stepping_actions) |
2218 | { | |
c5aa993b JM |
2219 | do |
2220 | { /* repeat over a comma-separated list */ | |
2221 | QUIT; /* allow user to bail out with ^C */ | |
2222 | if (*action_exp == ',') | |
2223 | action_exp++; | |
104c1213 | 2224 | while (isspace ((int) *action_exp)) |
c5aa993b JM |
2225 | action_exp++; |
2226 | ||
2227 | next_comma = strchr (action_exp, ','); | |
2228 | ||
2229 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2230 | registers_info (NULL, from_tty); | |
2231 | else if (0 == strncasecmp (action_exp, "$loc", 4)) | |
2232 | locals_info (NULL, from_tty); | |
2233 | else if (0 == strncasecmp (action_exp, "$arg", 4)) | |
2234 | args_info (NULL, from_tty); | |
2235 | else | |
2236 | { /* variable */ | |
2237 | if (next_comma) | |
2238 | { | |
2239 | make_cleanup (replace_comma, next_comma); | |
2240 | *next_comma = '\0'; | |
2241 | } | |
2242 | printf_filtered ("%s = ", action_exp); | |
2243 | output_command (action_exp, from_tty); | |
2244 | printf_filtered ("\n"); | |
2245 | } | |
2246 | if (next_comma) | |
2247 | *next_comma = ','; | |
2248 | action_exp = next_comma; | |
2249 | } | |
2250 | while (action_exp && *action_exp == ','); | |
c906108c SS |
2251 | } |
2252 | } | |
2253 | } | |
2254 | discard_cleanups (old_cleanups); | |
2255 | } | |
2256 | ||
00bf0b85 SS |
2257 | extern int trace_regblock_size; |
2258 | ||
2259 | static void | |
2260 | trace_save_command (char *args, int from_tty) | |
2261 | { | |
2262 | char **argv; | |
2263 | char *filename = NULL, *pathname; | |
2264 | int target_does_save = 0; | |
2265 | struct cleanup *cleanup; | |
2266 | struct trace_status *ts = current_trace_status (); | |
2267 | int err, status; | |
2268 | FILE *fp; | |
2269 | struct uploaded_tp *uploaded_tps = NULL, *utp; | |
2270 | struct uploaded_tsv *uploaded_tsvs = NULL, *utsv; | |
2271 | int a; | |
2272 | LONGEST gotten = 0; | |
2273 | ULONGEST offset = 0; | |
2274 | #define MAX_TRACE_UPLOAD 2000 | |
2275 | gdb_byte buf[MAX_TRACE_UPLOAD]; | |
98e03262 | 2276 | int written; |
00bf0b85 SS |
2277 | |
2278 | if (args == NULL) | |
2279 | error_no_arg (_("file in which to save trace data")); | |
2280 | ||
2281 | argv = gdb_buildargv (args); | |
2282 | make_cleanup_freeargv (argv); | |
2283 | ||
2284 | for (; *argv; ++argv) | |
2285 | { | |
2286 | if (strcmp (*argv, "-r") == 0) | |
2287 | target_does_save = 1; | |
2288 | else if (**argv == '-') | |
2289 | error (_("unknown option `%s'"), *argv); | |
2290 | else | |
2291 | filename = *argv; | |
2292 | } | |
2293 | ||
2294 | if (!filename) | |
2295 | error_no_arg (_("file in which to save trace data")); | |
2296 | ||
2297 | /* If the target is to save the data to a file on its own, then just | |
2298 | send the command and be done with it. */ | |
2299 | if (target_does_save) | |
2300 | { | |
2301 | err = target_save_trace_data (filename); | |
2302 | if (err < 0) | |
2303 | error (_("Target failed to save trace data to '%s'."), | |
2304 | filename); | |
2305 | return; | |
2306 | } | |
2307 | ||
2308 | /* Get the trace status first before opening the file, so if the | |
2309 | target is losing, we can get out without touching files. */ | |
2310 | status = target_get_trace_status (ts); | |
2311 | ||
2312 | pathname = tilde_expand (args); | |
2313 | cleanup = make_cleanup (xfree, pathname); | |
2314 | ||
2315 | fp = fopen (pathname, "w"); | |
2316 | if (!fp) | |
2317 | error (_("Unable to open file '%s' for saving trace data (%s)"), | |
2318 | args, safe_strerror (errno)); | |
2319 | make_cleanup_fclose (fp); | |
2320 | ||
2321 | /* Write a file header, with a high-bit-set char to indicate a | |
2322 | binary file, plus a hint as what this file is, and a version | |
2323 | number in case of future needs. */ | |
98e03262 SS |
2324 | written = fwrite ("\x7fTRACE0\n", 8, 1, fp); |
2325 | if (written < 8) | |
2326 | perror_with_name (pathname); | |
00bf0b85 SS |
2327 | |
2328 | /* Write descriptive info. */ | |
2329 | ||
2330 | /* Write out the size of a register block. */ | |
2331 | fprintf (fp, "R %x\n", trace_regblock_size); | |
2332 | ||
2333 | /* Write out status of the tracing run (aka "tstatus" info). */ | |
4daf5ac0 | 2334 | fprintf (fp, "status %c;%s:%x", |
00bf0b85 | 2335 | (ts->running ? '1' : '0'), |
4daf5ac0 SS |
2336 | stop_reason_names[ts->stop_reason], ts->stopping_tracepoint); |
2337 | if (ts->traceframe_count >= 0) | |
2338 | fprintf (fp, ";tframes:%x", ts->traceframe_count); | |
2339 | if (ts->traceframes_created >= 0) | |
2340 | fprintf (fp, ";tcreated:%x", ts->traceframes_created); | |
2341 | if (ts->buffer_free >= 0) | |
2342 | fprintf (fp, ";tfree:%x", ts->buffer_free); | |
2343 | if (ts->buffer_size >= 0) | |
2344 | fprintf (fp, ";tsize:%x", ts->buffer_size); | |
2345 | fprintf (fp, "\n"); | |
00bf0b85 SS |
2346 | |
2347 | /* Note that we want to upload tracepoints and save those, rather | |
2348 | than simply writing out the local ones, because the user may have | |
2349 | changed tracepoints in GDB in preparation for a future tracing | |
2350 | run, or maybe just mass-deleted all types of breakpoints as part | |
2351 | of cleaning up. So as not to contaminate the session, leave the | |
2352 | data in its uploaded form, don't make into real tracepoints. */ | |
2353 | ||
2354 | /* Get trace state variables first, they may be checked when parsing | |
2355 | uploaded commands. */ | |
2356 | ||
2357 | target_upload_trace_state_variables (&uploaded_tsvs); | |
2358 | ||
2359 | for (utsv = uploaded_tsvs; utsv; utsv = utsv->next) | |
2360 | { | |
2361 | char *buf = ""; | |
2362 | ||
2363 | if (utsv->name) | |
2364 | { | |
2365 | buf = (char *) xmalloc (strlen (utsv->name) * 2 + 1); | |
2366 | bin2hex ((gdb_byte *) (utsv->name), buf, 0); | |
2367 | } | |
2368 | ||
2369 | fprintf (fp, "tsv %x:%s:%x:%s\n", | |
2370 | utsv->number, phex_nz (utsv->initial_value, 8), | |
2371 | utsv->builtin, buf); | |
2372 | ||
2373 | if (utsv->name) | |
2374 | xfree (buf); | |
2375 | } | |
2376 | ||
2377 | free_uploaded_tsvs (&uploaded_tsvs); | |
2378 | ||
2379 | target_upload_tracepoints (&uploaded_tps); | |
2380 | ||
2381 | for (utp = uploaded_tps; utp; utp = utp->next) | |
2382 | { | |
2383 | fprintf (fp, "tp T%x:%s:%c:%x:%x", | |
2384 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), | |
2385 | (utp->enabled ? 'E' : 'D'), utp->step, utp->pass); | |
2386 | if (utp->type == bp_fast_tracepoint) | |
2387 | fprintf (fp, ":F%x", utp->orig_size); | |
2388 | if (utp->cond) | |
2389 | fprintf (fp, ":X%x,%s", (unsigned int) strlen (utp->cond) / 2, | |
2390 | utp->cond); | |
2391 | fprintf (fp, "\n"); | |
2392 | for (a = 0; a < utp->numactions; ++a) | |
2393 | fprintf (fp, "tp A%x:%s:%s\n", | |
2394 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), | |
2395 | utp->actions[a]); | |
2396 | for (a = 0; a < utp->num_step_actions; ++a) | |
2397 | fprintf (fp, "tp S%x:%s:%s\n", | |
2398 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), | |
2399 | utp->step_actions[a]); | |
2400 | } | |
2401 | ||
2402 | free_uploaded_tps (&uploaded_tps); | |
2403 | ||
2404 | /* Mark the end of the definition section. */ | |
2405 | fprintf (fp, "\n"); | |
2406 | ||
2407 | /* Get and write the trace data proper. We ask for big blocks, in | |
2408 | the hopes of efficiency, but will take less if the target has | |
2409 | packet size limitations or some such. */ | |
2410 | while (1) | |
2411 | { | |
2412 | gotten = target_get_raw_trace_data (buf, offset, MAX_TRACE_UPLOAD); | |
2413 | if (gotten < 0) | |
2414 | error (_("Failure to get requested trace buffer data")); | |
2415 | /* No more data is forthcoming, we're done. */ | |
2416 | if (gotten == 0) | |
2417 | break; | |
98e03262 SS |
2418 | written = fwrite (buf, gotten, 1, fp); |
2419 | if (written < gotten) | |
2420 | perror_with_name (pathname); | |
00bf0b85 SS |
2421 | offset += gotten; |
2422 | } | |
2423 | ||
2424 | /* Mark the end of trace data. */ | |
98e03262 SS |
2425 | written = fwrite (&gotten, 4, 1, fp); |
2426 | if (written < 4) | |
2427 | perror_with_name (pathname); | |
00bf0b85 SS |
2428 | |
2429 | do_cleanups (cleanup); | |
2430 | if (from_tty) | |
2431 | printf_filtered (_("Trace data saved to file '%s'.\n"), args); | |
2432 | } | |
2433 | ||
d5551862 SS |
2434 | /* Tell the target what to do with an ongoing tracing run if GDB |
2435 | disconnects for some reason. */ | |
2436 | ||
2437 | void | |
2438 | send_disconnected_tracing_value (int value) | |
2439 | { | |
35b1e5cc | 2440 | target_set_disconnected_tracing (value); |
d5551862 SS |
2441 | } |
2442 | ||
2443 | static void | |
2444 | set_disconnected_tracing (char *args, int from_tty, | |
2445 | struct cmd_list_element *c) | |
2446 | { | |
2447 | send_disconnected_tracing_value (disconnected_tracing); | |
2448 | } | |
2449 | ||
4daf5ac0 SS |
2450 | static void |
2451 | set_circular_trace_buffer (char *args, int from_tty, | |
2452 | struct cmd_list_element *c) | |
2453 | { | |
2454 | target_set_circular_trace_buffer (circular_trace_buffer); | |
2455 | } | |
2456 | ||
c906108c SS |
2457 | /* Convert the memory pointed to by mem into hex, placing result in buf. |
2458 | * Return a pointer to the last char put in buf (null) | |
2459 | * "stolen" from sparc-stub.c | |
2460 | */ | |
2461 | ||
c5aa993b | 2462 | static const char hexchars[] = "0123456789abcdef"; |
c906108c | 2463 | |
47b667de AC |
2464 | static char * |
2465 | mem2hex (gdb_byte *mem, char *buf, int count) | |
c906108c | 2466 | { |
47b667de | 2467 | gdb_byte ch; |
c906108c SS |
2468 | |
2469 | while (count-- > 0) | |
2470 | { | |
2471 | ch = *mem++; | |
2472 | ||
2473 | *buf++ = hexchars[ch >> 4]; | |
2474 | *buf++ = hexchars[ch & 0xf]; | |
2475 | } | |
2476 | ||
2477 | *buf = 0; | |
2478 | ||
2479 | return buf; | |
2480 | } | |
2481 | ||
c5aa993b | 2482 | int |
fba45db2 | 2483 | get_traceframe_number (void) |
c906108c | 2484 | { |
c5aa993b | 2485 | return traceframe_number; |
c906108c SS |
2486 | } |
2487 | ||
06cd862c PA |
2488 | /* Make the traceframe NUM be the current trace frame. Does nothing |
2489 | if NUM is already current. */ | |
2490 | ||
2491 | void | |
2492 | set_traceframe_number (int num) | |
2493 | { | |
2494 | int newnum; | |
2495 | ||
2496 | if (traceframe_number == num) | |
2497 | { | |
2498 | /* Nothing to do. */ | |
2499 | return; | |
2500 | } | |
2501 | ||
2502 | newnum = target_trace_find (tfind_number, num, 0, 0, NULL); | |
2503 | ||
2504 | if (newnum != num) | |
2505 | warning (_("could not change traceframe")); | |
2506 | ||
2507 | traceframe_number = newnum; | |
2508 | ||
2509 | /* Changing the traceframe changes our view of registers and of the | |
2510 | frame chain. */ | |
2511 | registers_changed (); | |
2512 | } | |
2513 | ||
2514 | /* A cleanup used when switching away and back from tfind mode. */ | |
2515 | ||
2516 | struct current_traceframe_cleanup | |
2517 | { | |
2518 | /* The traceframe we were inspecting. */ | |
2519 | int traceframe_number; | |
2520 | }; | |
2521 | ||
2522 | static void | |
2523 | do_restore_current_traceframe_cleanup (void *arg) | |
2524 | { | |
2525 | struct current_traceframe_cleanup *old = arg; | |
2526 | ||
2527 | set_traceframe_number (old->traceframe_number); | |
2528 | } | |
2529 | ||
2530 | static void | |
2531 | restore_current_traceframe_cleanup_dtor (void *arg) | |
2532 | { | |
2533 | struct current_traceframe_cleanup *old = arg; | |
2534 | ||
2535 | xfree (old); | |
2536 | } | |
2537 | ||
2538 | struct cleanup * | |
2539 | make_cleanup_restore_current_traceframe (void) | |
2540 | { | |
2541 | struct current_traceframe_cleanup *old; | |
2542 | ||
2543 | old = xmalloc (sizeof (struct current_traceframe_cleanup)); | |
2544 | old->traceframe_number = traceframe_number; | |
2545 | ||
2546 | return make_cleanup_dtor (do_restore_current_traceframe_cleanup, old, | |
2547 | restore_current_traceframe_cleanup_dtor); | |
2548 | } | |
00bf0b85 SS |
2549 | |
2550 | /* Given a number and address, return an uploaded tracepoint with that | |
2551 | number, creating if necessary. */ | |
2552 | ||
2553 | struct uploaded_tp * | |
2554 | get_uploaded_tp (int num, ULONGEST addr, struct uploaded_tp **utpp) | |
2555 | { | |
2556 | struct uploaded_tp *utp; | |
2557 | ||
2558 | for (utp = *utpp; utp; utp = utp->next) | |
2559 | if (utp->number == num && utp->addr == addr) | |
2560 | return utp; | |
2561 | utp = (struct uploaded_tp *) xmalloc (sizeof (struct uploaded_tp)); | |
2562 | memset (utp, 0, sizeof (struct uploaded_tp)); | |
2563 | utp->number = num; | |
2564 | utp->addr = addr; | |
2565 | utp->next = *utpp; | |
2566 | *utpp = utp; | |
2567 | return utp; | |
2568 | } | |
2569 | ||
2570 | static void | |
2571 | free_uploaded_tps (struct uploaded_tp **utpp) | |
2572 | { | |
2573 | struct uploaded_tp *next_one; | |
2574 | ||
2575 | while (*utpp) | |
2576 | { | |
2577 | next_one = (*utpp)->next; | |
2578 | xfree (*utpp); | |
2579 | *utpp = next_one; | |
2580 | } | |
2581 | } | |
2582 | ||
2583 | /* Given a number and address, return an uploaded tracepoint with that | |
2584 | number, creating if necessary. */ | |
2585 | ||
2586 | struct uploaded_tsv * | |
2587 | get_uploaded_tsv (int num, struct uploaded_tsv **utsvp) | |
2588 | { | |
2589 | struct uploaded_tsv *utsv; | |
2590 | ||
2591 | for (utsv = *utsvp; utsv; utsv = utsv->next) | |
2592 | if (utsv->number == num) | |
2593 | return utsv; | |
2594 | utsv = (struct uploaded_tsv *) xmalloc (sizeof (struct uploaded_tsv)); | |
2595 | memset (utsv, 0, sizeof (struct uploaded_tsv)); | |
2596 | utsv->number = num; | |
2597 | utsv->next = *utsvp; | |
2598 | *utsvp = utsv; | |
2599 | return utsv; | |
2600 | } | |
2601 | ||
2602 | static void | |
2603 | free_uploaded_tsvs (struct uploaded_tsv **utsvp) | |
2604 | { | |
2605 | struct uploaded_tsv *next_one; | |
2606 | ||
2607 | while (*utsvp) | |
2608 | { | |
2609 | next_one = (*utsvp)->next; | |
2610 | xfree (*utsvp); | |
2611 | *utsvp = next_one; | |
2612 | } | |
2613 | } | |
2614 | ||
2615 | /* Look for an existing tracepoint that seems similar enough to the | |
2616 | uploaded one. Enablement isn't compared, because the user can | |
2617 | toggle that freely, and may have done so in anticipation of the | |
2618 | next trace run. */ | |
2619 | ||
2620 | struct breakpoint * | |
2621 | find_matching_tracepoint (struct uploaded_tp *utp) | |
2622 | { | |
2623 | VEC(breakpoint_p) *tp_vec = all_tracepoints (); | |
2624 | int ix; | |
2625 | struct breakpoint *t; | |
2626 | struct bp_location *loc; | |
2627 | ||
2628 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
2629 | { | |
2630 | if (t->type == utp->type | |
2631 | && t->step_count == utp->step | |
2632 | && t->pass_count == utp->pass | |
2633 | /* FIXME also test conditionals and actions */ | |
2634 | ) | |
2635 | { | |
2636 | /* Scan the locations for an address match. */ | |
2637 | for (loc = t->loc; loc; loc = loc->next) | |
2638 | { | |
2639 | if (loc->address == utp->addr) | |
2640 | return t; | |
2641 | } | |
2642 | } | |
2643 | } | |
2644 | return NULL; | |
2645 | } | |
2646 | ||
2647 | /* Given a list of tracepoints uploaded from a target, attempt to | |
2648 | match them up with existing tracepoints, and create new ones if not | |
2649 | found. */ | |
2650 | ||
2651 | void | |
2652 | merge_uploaded_tracepoints (struct uploaded_tp **uploaded_tps) | |
2653 | { | |
2654 | struct uploaded_tp *utp; | |
2655 | struct breakpoint *t; | |
2656 | ||
2657 | /* Look for GDB tracepoints that match up with our uploaded versions. */ | |
2658 | for (utp = *uploaded_tps; utp; utp = utp->next) | |
2659 | { | |
2660 | t = find_matching_tracepoint (utp); | |
2661 | if (t) | |
2662 | printf_filtered (_("Assuming tracepoint %d is same as target's tracepoint %d at %s.\n"), | |
2663 | t->number, utp->number, paddress (get_current_arch (), utp->addr)); | |
2664 | else | |
2665 | { | |
2666 | t = create_tracepoint_from_upload (utp); | |
2667 | if (t) | |
2668 | printf_filtered (_("Created tracepoint %d for target's tracepoint %d at %s.\n"), | |
2669 | t->number, utp->number, paddress (get_current_arch (), utp->addr)); | |
2670 | else | |
2671 | printf_filtered (_("Failed to create tracepoint for target's tracepoint %d at %s, skipping it.\n"), | |
2672 | utp->number, paddress (get_current_arch (), utp->addr)); | |
2673 | } | |
2674 | /* Whether found or created, record the number used by the | |
2675 | target, to help with mapping target tracepoints back to their | |
2676 | counterparts here. */ | |
2677 | if (t) | |
2678 | t->number_on_target = utp->number; | |
2679 | } | |
2680 | ||
2681 | free_uploaded_tps (uploaded_tps); | |
2682 | } | |
2683 | ||
2684 | /* Trace state variables don't have much to identify them beyond their | |
2685 | name, so just use that to detect matches. */ | |
2686 | ||
2687 | struct trace_state_variable * | |
2688 | find_matching_tsv (struct uploaded_tsv *utsv) | |
2689 | { | |
2690 | if (!utsv->name) | |
2691 | return NULL; | |
2692 | ||
2693 | return find_trace_state_variable (utsv->name); | |
2694 | } | |
2695 | ||
2696 | struct trace_state_variable * | |
2697 | create_tsv_from_upload (struct uploaded_tsv *utsv) | |
2698 | { | |
2699 | const char *namebase; | |
2700 | char buf[20]; | |
2701 | int try_num = 0; | |
2702 | struct trace_state_variable *tsv; | |
2703 | ||
2704 | if (utsv->name) | |
2705 | { | |
2706 | namebase = utsv->name; | |
2707 | sprintf (buf, "%s", namebase); | |
2708 | } | |
2709 | else | |
2710 | { | |
2711 | namebase = "__tsv"; | |
2712 | sprintf (buf, "%s_%d", namebase, try_num++); | |
2713 | } | |
2714 | ||
2715 | /* Fish for a name that is not in use. */ | |
2716 | /* (should check against all internal vars?) */ | |
2717 | while (find_trace_state_variable (buf)) | |
2718 | sprintf (buf, "%s_%d", namebase, try_num++); | |
2719 | ||
2720 | /* We have an available name, create the variable. */ | |
2721 | tsv = create_trace_state_variable (xstrdup (buf)); | |
2722 | tsv->initial_value = utsv->initial_value; | |
2723 | tsv->builtin = utsv->builtin; | |
2724 | ||
2725 | return tsv; | |
2726 | } | |
2727 | ||
2728 | /* Given a list of uploaded trace state variables, try to match them | |
2729 | up with existing variables, or create additional ones. */ | |
2730 | ||
2731 | void | |
2732 | merge_uploaded_trace_state_variables (struct uploaded_tsv **uploaded_tsvs) | |
2733 | { | |
2734 | int ix; | |
2735 | struct uploaded_tsv *utsv; | |
2736 | struct trace_state_variable *tsv; | |
2737 | int highest; | |
2738 | ||
2739 | /* Most likely some numbers will have to be reassigned as part of | |
2740 | the merge, so clear them all in anticipation. */ | |
2741 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
2742 | tsv->number = 0; | |
2743 | ||
2744 | for (utsv = *uploaded_tsvs; utsv; utsv = utsv->next) | |
2745 | { | |
2746 | tsv = find_matching_tsv (utsv); | |
2747 | if (tsv) | |
2748 | printf_filtered (_("Assuming trace state variable $%s is same as target's variable %d.\n"), | |
2749 | tsv->name, utsv->number); | |
2750 | else | |
2751 | { | |
2752 | tsv = create_tsv_from_upload (utsv); | |
2753 | printf_filtered (_("Created trace state variable $%s for target's variable %d.\n"), | |
2754 | tsv->name, utsv->number); | |
2755 | } | |
2756 | /* Give precedence to numberings that come from the target. */ | |
2757 | if (tsv) | |
2758 | tsv->number = utsv->number; | |
2759 | } | |
2760 | ||
2761 | /* Renumber everything that didn't get a target-assigned number. */ | |
2762 | highest = 0; | |
2763 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
2764 | if (tsv->number > highest) | |
2765 | highest = tsv->number; | |
2766 | ||
2767 | ++highest; | |
2768 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
2769 | if (tsv->number == 0) | |
2770 | tsv->number = highest++; | |
2771 | ||
2772 | free_uploaded_tsvs (uploaded_tsvs); | |
2773 | } | |
2774 | ||
2775 | /* target tfile command */ | |
2776 | ||
2777 | struct target_ops tfile_ops; | |
2778 | ||
2779 | /* Fill in tfile_ops with its defined operations and properties. */ | |
2780 | ||
2781 | #define TRACE_HEADER_SIZE 8 | |
2782 | ||
98e03262 | 2783 | char *trace_filename; |
00bf0b85 SS |
2784 | int trace_fd = -1; |
2785 | off_t trace_frames_offset; | |
2786 | off_t cur_offset; | |
2787 | int cur_data_size; | |
2788 | int trace_regblock_size; | |
2789 | ||
2790 | static void tfile_interp_line (char *line, | |
2791 | struct uploaded_tp **utpp, | |
2792 | struct uploaded_tsv **utsvp); | |
2793 | ||
2794 | static void | |
2795 | tfile_open (char *filename, int from_tty) | |
2796 | { | |
2797 | char *temp; | |
2798 | struct cleanup *old_chain; | |
2799 | int flags; | |
2800 | int scratch_chan; | |
2801 | char header[TRACE_HEADER_SIZE]; | |
2802 | char linebuf[1000]; /* should be max remote packet size or so */ | |
2803 | char byte; | |
98e03262 | 2804 | int bytes, i, gotten; |
00bf0b85 SS |
2805 | struct trace_status *ts; |
2806 | struct uploaded_tp *uploaded_tps = NULL; | |
2807 | struct uploaded_tsv *uploaded_tsvs = NULL; | |
2808 | ||
2809 | target_preopen (from_tty); | |
2810 | if (!filename) | |
2811 | error (_("No trace file specified.")); | |
2812 | ||
2813 | filename = tilde_expand (filename); | |
2814 | if (!IS_ABSOLUTE_PATH(filename)) | |
2815 | { | |
2816 | temp = concat (current_directory, "/", filename, (char *)NULL); | |
2817 | xfree (filename); | |
2818 | filename = temp; | |
2819 | } | |
2820 | ||
2821 | old_chain = make_cleanup (xfree, filename); | |
2822 | ||
2823 | flags = O_BINARY | O_LARGEFILE; | |
2824 | flags |= O_RDONLY; | |
2825 | scratch_chan = open (filename, flags, 0); | |
2826 | if (scratch_chan < 0) | |
2827 | perror_with_name (filename); | |
2828 | ||
2829 | /* Looks semi-reasonable. Toss the old trace file and work on the new. */ | |
2830 | ||
2831 | discard_cleanups (old_chain); /* Don't free filename any more */ | |
2832 | unpush_target (&tfile_ops); | |
2833 | ||
2834 | push_target (&tfile_ops); | |
00bf0b85 | 2835 | |
98e03262 | 2836 | trace_filename = xstrdup (filename); |
00bf0b85 SS |
2837 | trace_fd = scratch_chan; |
2838 | ||
2839 | bytes = 0; | |
2840 | /* Read the file header and test for validity. */ | |
98e03262 SS |
2841 | gotten = read (trace_fd, &header, TRACE_HEADER_SIZE); |
2842 | if (gotten < 0) | |
2843 | perror_with_name (trace_filename); | |
2844 | else if (gotten < TRACE_HEADER_SIZE) | |
2845 | error (_("Premature end of file while reading trace file")); | |
2846 | ||
00bf0b85 SS |
2847 | bytes += TRACE_HEADER_SIZE; |
2848 | if (!(header[0] == 0x7f | |
2849 | && (strncmp (header + 1, "TRACE0\n", 7) == 0))) | |
2850 | error (_("File is not a valid trace file.")); | |
2851 | ||
2852 | trace_regblock_size = 0; | |
2853 | ts = current_trace_status (); | |
2854 | /* We know we're working with a file. */ | |
2855 | ts->from_file = 1; | |
2856 | /* Set defaults in case there is no status line. */ | |
2857 | ts->running_known = 0; | |
2858 | ts->stop_reason = trace_stop_reason_unknown; | |
2859 | ts->traceframe_count = -1; | |
2860 | ts->buffer_free = 0; | |
2861 | ||
2862 | /* Read through a section of newline-terminated lines that | |
2863 | define things like tracepoints. */ | |
2864 | i = 0; | |
2865 | while (1) | |
2866 | { | |
98e03262 SS |
2867 | gotten = read (trace_fd, &byte, 1); |
2868 | if (gotten < 0) | |
2869 | perror_with_name (trace_filename); | |
2870 | else if (gotten < 1) | |
2871 | error (_("Premature end of file while reading trace file")); | |
2872 | ||
00bf0b85 SS |
2873 | ++bytes; |
2874 | if (byte == '\n') | |
2875 | { | |
2876 | /* Empty line marks end of the definition section. */ | |
2877 | if (i == 0) | |
2878 | break; | |
2879 | linebuf[i] = '\0'; | |
2880 | i = 0; | |
2881 | tfile_interp_line (linebuf, &uploaded_tps, &uploaded_tsvs); | |
2882 | } | |
2883 | else | |
2884 | linebuf[i++] = byte; | |
2885 | if (i >= 1000) | |
2886 | error (_("Excessively long lines in trace file")); | |
2887 | } | |
2888 | ||
2889 | /* Add the file's tracepoints and variables into the current mix. */ | |
2890 | ||
10ef8d6a PA |
2891 | /* Get trace state variables first, they may be checked when parsing |
2892 | uploaded commands. */ | |
00bf0b85 SS |
2893 | merge_uploaded_trace_state_variables (&uploaded_tsvs); |
2894 | ||
10ef8d6a PA |
2895 | merge_uploaded_tracepoints (&uploaded_tps); |
2896 | ||
00bf0b85 SS |
2897 | /* Record the starting offset of the binary trace data. */ |
2898 | trace_frames_offset = bytes; | |
2899 | ||
2900 | /* If we don't have a blocksize, we can't interpret the | |
2901 | traceframes. */ | |
2902 | if (trace_regblock_size == 0) | |
2903 | error (_("No register block size recorded in trace file")); | |
2904 | if (ts->traceframe_count <= 0) | |
2905 | { | |
2906 | warning ("No traceframes present in this file."); | |
2907 | return; | |
2908 | } | |
2909 | ||
2910 | #define TFILE_PID (1) | |
2911 | inferior_appeared (current_inferior (), TFILE_PID); | |
2912 | inferior_ptid = pid_to_ptid (TFILE_PID); | |
2913 | add_thread_silent (inferior_ptid); | |
2914 | ||
2915 | post_create_inferior (&tfile_ops, from_tty); | |
2916 | ||
2917 | #if 0 | |
2918 | /* FIXME this will get defined in MI patch submission */ | |
2919 | tfind_1 (tfind_number, 0, 0, 0, 0); | |
2920 | #endif | |
2921 | } | |
2922 | ||
2923 | /* Interpret the given line from the definitions part of the trace | |
2924 | file. */ | |
2925 | ||
2926 | static void | |
2927 | tfile_interp_line (char *line, | |
2928 | struct uploaded_tp **utpp, struct uploaded_tsv **utsvp) | |
2929 | { | |
2930 | char *p = line; | |
2931 | ||
2932 | if (strncmp (p, "R ", strlen ("R ")) == 0) | |
2933 | { | |
2934 | p += strlen ("R "); | |
2935 | trace_regblock_size = strtol (p, &p, 16); | |
2936 | } | |
2937 | else if (strncmp (p, "status ", strlen ("status ")) == 0) | |
2938 | { | |
2939 | p += strlen ("status "); | |
2940 | parse_trace_status (p, current_trace_status ()); | |
2941 | } | |
2942 | else if (strncmp (p, "tp ", strlen ("tp ")) == 0) | |
2943 | { | |
2944 | p += strlen ("tp "); | |
2945 | parse_tracepoint_definition (p, utpp); | |
2946 | } | |
2947 | else if (strncmp (p, "tsv ", strlen ("tsv ")) == 0) | |
2948 | { | |
2949 | p += strlen ("tsv "); | |
2950 | parse_tsv_definition (p, utsvp); | |
2951 | } | |
2952 | else | |
2953 | warning ("Ignoring trace file definition \"%s\"", line); | |
2954 | } | |
2955 | ||
2956 | /* Parse the part of trace status syntax that is shared between | |
2957 | the remote protocol and the trace file reader. */ | |
2958 | ||
2959 | extern char *unpack_varlen_hex (char *buff, ULONGEST *result); | |
2960 | ||
2961 | void | |
2962 | parse_trace_status (char *line, struct trace_status *ts) | |
2963 | { | |
2964 | char *p = line, *p1, *p_temp; | |
2965 | ULONGEST val; | |
2966 | ||
2967 | ts->running_known = 1; | |
2968 | ts->running = (*p++ == '1'); | |
2969 | ts->stop_reason = trace_stop_reason_unknown; | |
4daf5ac0 SS |
2970 | ts->traceframe_count = -1; |
2971 | ts->traceframes_created = -1; | |
2972 | ts->buffer_free = -1; | |
2973 | ts->buffer_size = -1; | |
2974 | ||
00bf0b85 SS |
2975 | while (*p++) |
2976 | { | |
2977 | p1 = strchr (p, ':'); | |
2978 | if (p1 == NULL) | |
2979 | error (_("Malformed trace status, at %s\n\ | |
2980 | Status line: '%s'\n"), p, line); | |
2981 | if (strncmp (p, stop_reason_names[trace_buffer_full], p1 - p) == 0) | |
2982 | { | |
2983 | p = unpack_varlen_hex (++p1, &val); | |
2984 | ts->stop_reason = trace_buffer_full; | |
2985 | } | |
2986 | else if (strncmp (p, stop_reason_names[trace_never_run], p1 - p) == 0) | |
2987 | { | |
2988 | p = unpack_varlen_hex (++p1, &val); | |
2989 | ts->stop_reason = trace_never_run; | |
2990 | } | |
2991 | else if (strncmp (p, stop_reason_names[tracepoint_passcount], p1 - p) == 0) | |
2992 | { | |
2993 | p = unpack_varlen_hex (++p1, &val); | |
2994 | ts->stop_reason = tracepoint_passcount; | |
2995 | ts->stopping_tracepoint = val; | |
2996 | } | |
2997 | else if (strncmp (p, stop_reason_names[tstop_command], p1 - p) == 0) | |
2998 | { | |
2999 | p = unpack_varlen_hex (++p1, &val); | |
3000 | ts->stop_reason = tstop_command; | |
3001 | } | |
4daf5ac0 | 3002 | else if (strncmp (p, "tframes", p1 - p) == 0) |
00bf0b85 SS |
3003 | { |
3004 | p = unpack_varlen_hex (++p1, &val); | |
3005 | ts->traceframe_count = val; | |
3006 | } | |
4daf5ac0 SS |
3007 | else if (strncmp (p, "tcreated", p1 - p) == 0) |
3008 | { | |
3009 | p = unpack_varlen_hex (++p1, &val); | |
3010 | ts->traceframes_created = val; | |
3011 | } | |
3012 | else if (strncmp (p, "tfree", p1 - p) == 0) | |
00bf0b85 SS |
3013 | { |
3014 | p = unpack_varlen_hex (++p1, &val); | |
3015 | ts->buffer_free = val; | |
3016 | } | |
4daf5ac0 SS |
3017 | else if (strncmp (p, "tsize", p1 - p) == 0) |
3018 | { | |
3019 | p = unpack_varlen_hex (++p1, &val); | |
3020 | ts->buffer_size = val; | |
3021 | } | |
00bf0b85 SS |
3022 | else |
3023 | { | |
3024 | /* Silently skip unknown optional info. */ | |
3025 | p_temp = strchr (p1 + 1, ';'); | |
3026 | if (p_temp) | |
3027 | p = p_temp; | |
3028 | else | |
3029 | /* Must be at the end. */ | |
3030 | break; | |
3031 | } | |
3032 | } | |
3033 | } | |
3034 | ||
3035 | /* Given a line of text defining a tracepoint or tracepoint action, parse | |
3036 | it into an "uploaded tracepoint". */ | |
3037 | ||
3038 | void | |
3039 | parse_tracepoint_definition (char *line, struct uploaded_tp **utpp) | |
3040 | { | |
3041 | char *p; | |
3042 | char piece; | |
3043 | ULONGEST num, addr, step, pass, orig_size, xlen; | |
3044 | int enabled, i; | |
3045 | enum bptype type; | |
3046 | char *cond; | |
3047 | struct uploaded_tp *utp = NULL; | |
3048 | ||
3049 | p = line; | |
3050 | /* Both tracepoint and action definitions start with the same number | |
3051 | and address sequence. */ | |
3052 | piece = *p++; | |
3053 | p = unpack_varlen_hex (p, &num); | |
3054 | p++; /* skip a colon */ | |
3055 | p = unpack_varlen_hex (p, &addr); | |
3056 | p++; /* skip a colon */ | |
3057 | if (piece == 'T') | |
3058 | { | |
3059 | enabled = (*p++ == 'E'); | |
3060 | p++; /* skip a colon */ | |
3061 | p = unpack_varlen_hex (p, &step); | |
3062 | p++; /* skip a colon */ | |
3063 | p = unpack_varlen_hex (p, &pass); | |
3064 | type = bp_tracepoint; | |
3065 | cond = NULL; | |
3066 | /* Thumb through optional fields. */ | |
3067 | while (*p == ':') | |
3068 | { | |
3069 | p++; /* skip a colon */ | |
3070 | if (*p == 'F') | |
3071 | { | |
3072 | type = bp_fast_tracepoint; | |
3073 | p++; | |
3074 | p = unpack_varlen_hex (p, &orig_size); | |
3075 | } | |
3076 | else if (*p == 'X') | |
3077 | { | |
3078 | p++; | |
3079 | p = unpack_varlen_hex (p, &xlen); | |
3080 | p++; /* skip a comma */ | |
3081 | cond = (char *) xmalloc (2 * xlen + 1); | |
3082 | strncpy (cond, p, 2 * xlen); | |
3083 | cond[2 * xlen] = '\0'; | |
3084 | p += 2 * xlen; | |
3085 | } | |
3086 | else | |
3087 | warning ("Unrecognized char '%c' in tracepoint definition, skipping rest", *p); | |
3088 | } | |
3089 | utp = get_uploaded_tp (num, addr, utpp); | |
3090 | utp->type = type; | |
3091 | utp->enabled = enabled; | |
3092 | utp->step = step; | |
3093 | utp->pass = pass; | |
3094 | utp->cond = cond; | |
3095 | } | |
3096 | else if (piece == 'A') | |
3097 | { | |
3098 | utp = get_uploaded_tp (num, addr, utpp); | |
3099 | utp->actions[utp->numactions++] = xstrdup (p); | |
3100 | } | |
3101 | else if (piece == 'S') | |
3102 | { | |
3103 | utp = get_uploaded_tp (num, addr, utpp); | |
3104 | utp->step_actions[utp->num_step_actions++] = xstrdup (p); | |
3105 | } | |
3106 | else | |
3107 | { | |
3108 | error ("Invalid tracepoint piece"); | |
3109 | } | |
3110 | } | |
3111 | ||
3112 | /* Convert a textual description of a trace state variable into an | |
3113 | uploaded object. */ | |
3114 | ||
3115 | void | |
3116 | parse_tsv_definition (char *line, struct uploaded_tsv **utsvp) | |
3117 | { | |
3118 | char *p, *buf; | |
3119 | ULONGEST num, initval, builtin; | |
3120 | int end; | |
3121 | struct uploaded_tsv *utsv = NULL; | |
3122 | ||
3123 | buf = alloca (strlen (line)); | |
3124 | ||
3125 | p = line; | |
3126 | p = unpack_varlen_hex (p, &num); | |
3127 | p++; /* skip a colon */ | |
3128 | p = unpack_varlen_hex (p, &initval); | |
3129 | p++; /* skip a colon */ | |
3130 | p = unpack_varlen_hex (p, &builtin); | |
3131 | p++; /* skip a colon */ | |
3132 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3133 | buf[end] = '\0'; | |
3134 | ||
3135 | utsv = get_uploaded_tsv (num, utsvp); | |
3136 | utsv->initial_value = initval; | |
3137 | utsv->builtin = builtin; | |
3138 | utsv->name = xstrdup (buf); | |
3139 | } | |
3140 | ||
3141 | /* Close the trace file and generally clean up. */ | |
3142 | ||
3143 | static void | |
3144 | tfile_close (int quitting) | |
3145 | { | |
3146 | int pid; | |
3147 | ||
3148 | if (trace_fd < 0) | |
3149 | return; | |
3150 | ||
3151 | pid = ptid_get_pid (inferior_ptid); | |
3152 | inferior_ptid = null_ptid; /* Avoid confusion from thread stuff */ | |
3153 | exit_inferior_silent (pid); | |
3154 | ||
3155 | close (trace_fd); | |
3156 | trace_fd = -1; | |
98e03262 SS |
3157 | if (trace_filename) |
3158 | xfree (trace_filename); | |
00bf0b85 SS |
3159 | } |
3160 | ||
3161 | static void | |
3162 | tfile_files_info (struct target_ops *t) | |
3163 | { | |
3164 | /* (it would be useful to mention the name of the file) */ | |
3165 | printf_filtered ("Looking at a trace file.\n"); | |
3166 | } | |
3167 | ||
3168 | /* The trace status for a file is that tracing can never be run. */ | |
3169 | ||
3170 | static int | |
3171 | tfile_get_trace_status (struct trace_status *ts) | |
3172 | { | |
3173 | /* Other bits of trace status were collected as part of opening the | |
3174 | trace files, so nothing to do here. */ | |
3175 | ||
3176 | return -1; | |
3177 | } | |
3178 | ||
3179 | /* Given the position of a traceframe in the file, figure out what | |
3180 | address the frame was collected at. This would normally be the | |
3181 | value of a collected PC register, but if not available, we | |
3182 | improvise. */ | |
3183 | ||
3184 | static ULONGEST | |
3185 | tfile_get_traceframe_address (off_t tframe_offset) | |
3186 | { | |
3187 | ULONGEST addr = 0; | |
3188 | short tpnum; | |
3189 | struct breakpoint *tp; | |
3190 | off_t saved_offset = cur_offset; | |
98e03262 | 3191 | int gotten; |
00bf0b85 SS |
3192 | |
3193 | /* FIXME dig pc out of collected registers */ | |
3194 | ||
3195 | /* Fall back to using tracepoint address. */ | |
3196 | lseek (trace_fd, tframe_offset, SEEK_SET); | |
98e03262 SS |
3197 | gotten = read (trace_fd, &tpnum, 2); |
3198 | if (gotten < 0) | |
3199 | perror_with_name (trace_filename); | |
3200 | else if (gotten < 2) | |
3201 | error (_("Premature end of file while reading trace file")); | |
3202 | ||
00bf0b85 | 3203 | tp = get_tracepoint_by_number_on_target (tpnum); |
9355b391 | 3204 | /* FIXME this is a poor heuristic if multiple locations */ |
00bf0b85 SS |
3205 | if (tp && tp->loc) |
3206 | addr = tp->loc->address; | |
3207 | ||
3208 | /* Restore our seek position. */ | |
3209 | cur_offset = saved_offset; | |
3210 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3211 | return addr; | |
3212 | } | |
3213 | ||
3214 | /* Given a type of search and some parameters, scan the collection of | |
3215 | traceframes in the file looking for a match. When found, return | |
3216 | both the traceframe and tracepoint number, otherwise -1 for | |
3217 | each. */ | |
3218 | ||
3219 | static int | |
3220 | tfile_trace_find (enum trace_find_type type, int num, | |
3221 | ULONGEST addr1, ULONGEST addr2, int *tpp) | |
3222 | { | |
3223 | short tpnum; | |
98e03262 | 3224 | int tfnum = 0, found = 0, gotten; |
00bf0b85 SS |
3225 | int data_size; |
3226 | struct breakpoint *tp; | |
3227 | off_t offset, tframe_offset; | |
3228 | ULONGEST tfaddr; | |
3229 | ||
3230 | lseek (trace_fd, trace_frames_offset, SEEK_SET); | |
3231 | offset = trace_frames_offset; | |
3232 | while (1) | |
3233 | { | |
3234 | tframe_offset = offset; | |
98e03262 SS |
3235 | gotten = read (trace_fd, &tpnum, 2); |
3236 | if (gotten < 0) | |
3237 | perror_with_name (trace_filename); | |
3238 | else if (gotten < 2) | |
3239 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3240 | offset += 2; |
3241 | if (tpnum == 0) | |
3242 | break; | |
98e03262 SS |
3243 | gotten = read (trace_fd, &data_size, 4); |
3244 | if (gotten < 0) | |
3245 | perror_with_name (trace_filename); | |
3246 | else if (gotten < 4) | |
3247 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3248 | offset += 4; |
3249 | switch (type) | |
3250 | { | |
3251 | case tfind_number: | |
3252 | if (tfnum == num) | |
3253 | found = 1; | |
3254 | break; | |
3255 | case tfind_pc: | |
3256 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3257 | if (tfaddr == addr1) | |
3258 | found = 1; | |
3259 | break; | |
3260 | case tfind_tp: | |
3261 | tp = get_tracepoint (num); | |
3262 | if (tp && tpnum == tp->number_on_target) | |
3263 | found = 1; | |
3264 | break; | |
3265 | case tfind_range: | |
3266 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3267 | if (addr1 <= tfaddr && tfaddr <= addr2) | |
3268 | found = 1; | |
3269 | break; | |
3270 | case tfind_outside: | |
3271 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3272 | if (!(addr1 <= tfaddr && tfaddr <= addr2)) | |
3273 | found = 1; | |
3274 | break; | |
3275 | default: | |
3276 | internal_error (__FILE__, __LINE__, _("unknown tfind type")); | |
3277 | } | |
3278 | if (found) | |
3279 | { | |
3280 | printf_filtered ("Found traceframe %d.\n", tfnum); | |
3281 | if (tpp) | |
3282 | *tpp = tpnum; | |
3283 | cur_offset = offset; | |
3284 | cur_data_size = data_size; | |
3285 | return tfnum; | |
3286 | } | |
3287 | /* Skip past the traceframe's data. */ | |
3288 | lseek (trace_fd, data_size, SEEK_CUR); | |
3289 | offset += data_size; | |
3290 | /* Update our own count of traceframes. */ | |
3291 | ++tfnum; | |
3292 | } | |
3293 | /* Did not find what we were looking for. */ | |
3294 | if (tpp) | |
3295 | *tpp = -1; | |
3296 | return -1; | |
3297 | } | |
3298 | ||
3299 | /* Look for a block of saved registers in the traceframe, and get the | |
3300 | requested register from it. */ | |
3301 | ||
3302 | static void | |
3303 | tfile_fetch_registers (struct target_ops *ops, | |
3304 | struct regcache *regcache, int regno) | |
3305 | { | |
3306 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
3307 | char block_type; | |
98e03262 | 3308 | int i, pos, offset, regn, regsize, gotten; |
00bf0b85 SS |
3309 | unsigned short mlen; |
3310 | char *regs; | |
3311 | ||
3312 | /* An uninitialized reg size says we're not going to be | |
3313 | successful at getting register blocks. */ | |
3314 | if (!trace_regblock_size) | |
3315 | return; | |
3316 | ||
3317 | regs = alloca (trace_regblock_size); | |
3318 | ||
3319 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3320 | pos = 0; | |
3321 | while (pos < cur_data_size) | |
3322 | { | |
98e03262 SS |
3323 | gotten = read (trace_fd, &block_type, 1); |
3324 | if (gotten < 0) | |
3325 | perror_with_name (trace_filename); | |
3326 | else if (gotten < 1) | |
3327 | error (_("Premature end of file while reading trace file")); | |
3328 | ||
00bf0b85 SS |
3329 | ++pos; |
3330 | switch (block_type) | |
3331 | { | |
3332 | case 'R': | |
98e03262 SS |
3333 | gotten = read (trace_fd, regs, trace_regblock_size); |
3334 | if (gotten < 0) | |
3335 | perror_with_name (trace_filename); | |
3336 | else if (gotten < trace_regblock_size) | |
3337 | error (_("Premature end of file while reading trace file")); | |
3338 | ||
00bf0b85 SS |
3339 | /* Assume the block is laid out in GDB register number order, |
3340 | each register with the size that it has in GDB. */ | |
3341 | offset = 0; | |
3342 | for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++) | |
3343 | { | |
3344 | regsize = register_size (gdbarch, regn); | |
3345 | /* Make sure we stay within block bounds. */ | |
3346 | if (offset + regsize >= trace_regblock_size) | |
3347 | break; | |
3348 | if (!regcache_valid_p (regcache, regn)) | |
3349 | { | |
3350 | if (regno == regn) | |
3351 | { | |
3352 | regcache_raw_supply (regcache, regno, regs + offset); | |
3353 | break; | |
3354 | } | |
3355 | else if (regno == -1) | |
3356 | { | |
3357 | regcache_raw_supply (regcache, regn, regs + offset); | |
3358 | } | |
3359 | } | |
3360 | offset += regsize; | |
3361 | } | |
3362 | return; | |
3363 | case 'M': | |
3364 | lseek (trace_fd, 8, SEEK_CUR); | |
98e03262 SS |
3365 | gotten = read (trace_fd, &mlen, 2); |
3366 | if (gotten < 0) | |
3367 | perror_with_name (trace_filename); | |
3368 | else if (gotten < 2) | |
3369 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3370 | lseek (trace_fd, mlen, SEEK_CUR); |
3371 | pos += (8 + 2 + mlen); | |
3372 | break; | |
3373 | case 'V': | |
3374 | lseek (trace_fd, 4 + 8, SEEK_CUR); | |
3375 | pos += (4 + 8); | |
3376 | break; | |
3377 | default: | |
3378 | error ("Unknown block type '%c' (0x%x) in trace frame", | |
3379 | block_type, block_type); | |
3380 | break; | |
3381 | } | |
3382 | } | |
3383 | } | |
3384 | ||
3385 | static LONGEST | |
3386 | tfile_xfer_partial (struct target_ops *ops, enum target_object object, | |
3387 | const char *annex, gdb_byte *readbuf, | |
3388 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
3389 | { | |
3390 | char block_type; | |
98e03262 | 3391 | int pos, gotten; |
00bf0b85 SS |
3392 | ULONGEST maddr; |
3393 | unsigned short mlen; | |
3394 | ||
3395 | /* We're only doing regular memory for now. */ | |
3396 | if (object != TARGET_OBJECT_MEMORY) | |
3397 | return -1; | |
3398 | ||
3399 | if (readbuf == NULL) | |
3400 | error ("tfile_xfer_partial: trace file is read-only"); | |
3401 | ||
3402 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3403 | pos = 0; | |
3404 | while (pos < cur_data_size) | |
3405 | { | |
98e03262 SS |
3406 | gotten = read (trace_fd, &block_type, 1); |
3407 | if (gotten < 0) | |
3408 | perror_with_name (trace_filename); | |
3409 | else if (gotten < 1) | |
3410 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3411 | ++pos; |
3412 | switch (block_type) | |
3413 | { | |
3414 | case 'R': | |
3415 | lseek (trace_fd, trace_regblock_size, SEEK_CUR); | |
3416 | pos += trace_regblock_size; | |
3417 | break; | |
3418 | case 'M': | |
98e03262 SS |
3419 | gotten = read (trace_fd, &maddr, 8); |
3420 | if (gotten < 0) | |
3421 | perror_with_name (trace_filename); | |
3422 | else if (gotten < 8) | |
3423 | error (_("Premature end of file while reading trace file")); | |
3424 | ||
3425 | gotten = read (trace_fd, &mlen, 2); | |
3426 | if (gotten < 0) | |
3427 | perror_with_name (trace_filename); | |
3428 | else if (gotten < 2) | |
3429 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3430 | if (maddr <= offset && (offset + len) <= (maddr + mlen)) |
3431 | { | |
98e03262 SS |
3432 | gotten = read (trace_fd, readbuf, mlen); |
3433 | if (gotten < 0) | |
3434 | perror_with_name (trace_filename); | |
3435 | else if (gotten < mlen) | |
3436 | error (_("Premature end of file qwhile reading trace file")); | |
3437 | ||
00bf0b85 SS |
3438 | return mlen; |
3439 | } | |
3440 | lseek (trace_fd, mlen, SEEK_CUR); | |
3441 | pos += (8 + 2 + mlen); | |
3442 | break; | |
3443 | case 'V': | |
3444 | lseek (trace_fd, 4 + 8, SEEK_CUR); | |
3445 | pos += (4 + 8); | |
3446 | break; | |
3447 | default: | |
3448 | error ("Unknown block type '%c' (0x%x) in traceframe", | |
3449 | block_type, block_type); | |
3450 | break; | |
3451 | } | |
3452 | } | |
3453 | /* Indicate failure to find the requested memory block. */ | |
3454 | return -1; | |
3455 | } | |
3456 | ||
3457 | /* Iterate through the blocks of a trace frame, looking for a 'V' | |
3458 | block with a matching tsv number. */ | |
3459 | ||
3460 | static int | |
3461 | tfile_get_trace_state_variable_value (int tsvnum, LONGEST *val) | |
3462 | { | |
3463 | char block_type; | |
98e03262 | 3464 | int pos, vnum, gotten; |
00bf0b85 SS |
3465 | unsigned short mlen; |
3466 | ||
3467 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3468 | pos = 0; | |
3469 | while (pos < cur_data_size) | |
3470 | { | |
98e03262 SS |
3471 | gotten = read (trace_fd, &block_type, 1); |
3472 | if (gotten < 0) | |
3473 | perror_with_name (trace_filename); | |
3474 | else if (gotten < 1) | |
3475 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3476 | ++pos; |
3477 | switch (block_type) | |
3478 | { | |
3479 | case 'R': | |
3480 | lseek (trace_fd, trace_regblock_size, SEEK_CUR); | |
3481 | pos += trace_regblock_size; | |
3482 | break; | |
3483 | case 'M': | |
3484 | lseek (trace_fd, 8, SEEK_CUR); | |
98e03262 SS |
3485 | gotten = read (trace_fd, &mlen, 2); |
3486 | if (gotten < 0) | |
3487 | perror_with_name (trace_filename); | |
3488 | else if (gotten < 2) | |
3489 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3490 | lseek (trace_fd, mlen, SEEK_CUR); |
3491 | pos += (8 + 2 + mlen); | |
3492 | break; | |
3493 | case 'V': | |
98e03262 SS |
3494 | gotten = read (trace_fd, &vnum, 4); |
3495 | if (gotten < 0) | |
3496 | perror_with_name (trace_filename); | |
3497 | else if (gotten < 4) | |
3498 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3499 | if (tsvnum == vnum) |
3500 | { | |
98e03262 SS |
3501 | gotten = read (trace_fd, val, 8); |
3502 | if (gotten < 0) | |
3503 | perror_with_name (trace_filename); | |
3504 | else if (gotten < 8) | |
3505 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3506 | return 1; |
3507 | } | |
3508 | lseek (trace_fd, 8, SEEK_CUR); | |
3509 | pos += (4 + 8); | |
3510 | break; | |
3511 | default: | |
3512 | error ("Unknown block type '%c' (0x%x) in traceframe", | |
3513 | block_type, block_type); | |
3514 | break; | |
3515 | } | |
3516 | } | |
3517 | /* Didn't find anything. */ | |
3518 | return 0; | |
3519 | } | |
3520 | ||
3521 | static int | |
3522 | tfile_has_memory (struct target_ops *ops) | |
3523 | { | |
3524 | return 1; | |
3525 | } | |
3526 | ||
3527 | static int | |
3528 | tfile_has_stack (struct target_ops *ops) | |
3529 | { | |
3530 | return 1; | |
3531 | } | |
3532 | ||
3533 | static int | |
3534 | tfile_has_registers (struct target_ops *ops) | |
3535 | { | |
3536 | return 1; | |
3537 | } | |
3538 | ||
3539 | static void | |
3540 | init_tfile_ops (void) | |
3541 | { | |
3542 | tfile_ops.to_shortname = "tfile"; | |
3543 | tfile_ops.to_longname = "Local trace dump file"; | |
3544 | tfile_ops.to_doc = | |
3545 | "Use a trace file as a target. Specify the filename of the trace file."; | |
3546 | tfile_ops.to_open = tfile_open; | |
3547 | tfile_ops.to_close = tfile_close; | |
3548 | tfile_ops.to_fetch_registers = tfile_fetch_registers; | |
3549 | tfile_ops.to_xfer_partial = tfile_xfer_partial; | |
3550 | tfile_ops.to_files_info = tfile_files_info; | |
3551 | tfile_ops.to_get_trace_status = tfile_get_trace_status; | |
3552 | tfile_ops.to_trace_find = tfile_trace_find; | |
3553 | tfile_ops.to_get_trace_state_variable_value = tfile_get_trace_state_variable_value; | |
3554 | /* core_stratum might seem more logical, but GDB doesn't like having | |
3555 | more than one core_stratum vector. */ | |
3556 | tfile_ops.to_stratum = process_stratum; | |
3557 | tfile_ops.to_has_memory = tfile_has_memory; | |
3558 | tfile_ops.to_has_stack = tfile_has_stack; | |
3559 | tfile_ops.to_has_registers = tfile_has_registers; | |
3560 | tfile_ops.to_magic = OPS_MAGIC; | |
3561 | } | |
3562 | ||
c906108c SS |
3563 | /* module initialization */ |
3564 | void | |
fba45db2 | 3565 | _initialize_tracepoint (void) |
c906108c | 3566 | { |
fa58ee11 EZ |
3567 | struct cmd_list_element *c; |
3568 | ||
c906108c SS |
3569 | traceframe_number = -1; |
3570 | tracepoint_number = -1; | |
3571 | ||
c906108c SS |
3572 | if (tracepoint_list.list == NULL) |
3573 | { | |
3574 | tracepoint_list.listsize = 128; | |
c5aa993b | 3575 | tracepoint_list.list = xmalloc |
c906108c SS |
3576 | (tracepoint_list.listsize * sizeof (struct memrange)); |
3577 | } | |
3578 | if (tracepoint_list.aexpr_list == NULL) | |
3579 | { | |
3580 | tracepoint_list.aexpr_listsize = 128; | |
3581 | tracepoint_list.aexpr_list = xmalloc | |
3582 | (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
3583 | } | |
3584 | ||
3585 | if (stepping_list.list == NULL) | |
3586 | { | |
3587 | stepping_list.listsize = 128; | |
c5aa993b | 3588 | stepping_list.list = xmalloc |
c906108c SS |
3589 | (stepping_list.listsize * sizeof (struct memrange)); |
3590 | } | |
3591 | ||
3592 | if (stepping_list.aexpr_list == NULL) | |
3593 | { | |
3594 | stepping_list.aexpr_listsize = 128; | |
3595 | stepping_list.aexpr_list = xmalloc | |
3596 | (stepping_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
3597 | } | |
3598 | ||
c5aa993b | 3599 | add_info ("scope", scope_info, |
1bedd215 | 3600 | _("List the variables local to a scope")); |
c906108c | 3601 | |
e00d1dc8 | 3602 | add_cmd ("tracepoints", class_trace, NULL, |
1a966eab | 3603 | _("Tracing of program execution without stopping the program."), |
c906108c SS |
3604 | &cmdlist); |
3605 | ||
c5aa993b | 3606 | add_com ("tdump", class_trace, trace_dump_command, |
1bedd215 | 3607 | _("Print everything collected at the current tracepoint.")); |
c906108c | 3608 | |
00bf0b85 SS |
3609 | add_com ("tsave", class_trace, trace_save_command, _("\ |
3610 | Save the trace data to a file.\n\ | |
3611 | Use the '-r' option to direct the target to save directly to the file,\n\ | |
3612 | using its own filesystem.")); | |
3613 | ||
f61e138d SS |
3614 | c = add_com ("tvariable", class_trace, trace_variable_command,_("\ |
3615 | Define a trace state variable.\n\ | |
3616 | Argument is a $-prefixed name, optionally followed\n\ | |
3617 | by '=' and an expression that sets the initial value\n\ | |
3618 | at the start of tracing.")); | |
3619 | set_cmd_completer (c, expression_completer); | |
3620 | ||
3621 | add_cmd ("tvariable", class_trace, delete_trace_variable_command, _("\ | |
3622 | Delete one or more trace state variables.\n\ | |
3623 | Arguments are the names of the variables to delete.\n\ | |
3624 | If no arguments are supplied, delete all variables."), &deletelist); | |
3625 | /* FIXME add a trace variable completer */ | |
3626 | ||
3627 | add_info ("tvariables", tvariables_info, _("\ | |
3628 | Status of trace state variables and their values.\n\ | |
3629 | ")); | |
3630 | ||
1bedd215 AC |
3631 | add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\ |
3632 | Select a trace frame;\n\ | |
3633 | No argument means forward by one frame; '-' means backward by one frame."), | |
c906108c SS |
3634 | &tfindlist, "tfind ", 1, &cmdlist); |
3635 | ||
1a966eab | 3636 | add_cmd ("outside", class_trace, trace_find_outside_command, _("\ |
081dfbf7 | 3637 | Select a trace frame whose PC is outside the given range (exclusive).\n\ |
1a966eab | 3638 | Usage: tfind outside addr1, addr2"), |
c906108c SS |
3639 | &tfindlist); |
3640 | ||
1a966eab | 3641 | add_cmd ("range", class_trace, trace_find_range_command, _("\ |
081dfbf7 | 3642 | Select a trace frame whose PC is in the given range (inclusive).\n\ |
1a966eab | 3643 | Usage: tfind range addr1,addr2"), |
c906108c SS |
3644 | &tfindlist); |
3645 | ||
1a966eab AC |
3646 | add_cmd ("line", class_trace, trace_find_line_command, _("\ |
3647 | Select a trace frame by source line.\n\ | |
c906108c SS |
3648 | Argument can be a line number (with optional source file), \n\ |
3649 | a function name, or '*' followed by an address.\n\ | |
1a966eab | 3650 | Default argument is 'the next source line that was traced'."), |
c906108c SS |
3651 | &tfindlist); |
3652 | ||
1a966eab AC |
3653 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, _("\ |
3654 | Select a trace frame by tracepoint number.\n\ | |
3655 | Default is the tracepoint for the current trace frame."), | |
c906108c SS |
3656 | &tfindlist); |
3657 | ||
1a966eab AC |
3658 | add_cmd ("pc", class_trace, trace_find_pc_command, _("\ |
3659 | Select a trace frame by PC.\n\ | |
3660 | Default is the current PC, or the PC of the current trace frame."), | |
c906108c SS |
3661 | &tfindlist); |
3662 | ||
1a966eab AC |
3663 | add_cmd ("end", class_trace, trace_find_end_command, _("\ |
3664 | Synonym for 'none'.\n\ | |
3665 | De-select any trace frame and resume 'live' debugging."), | |
c906108c SS |
3666 | &tfindlist); |
3667 | ||
3668 | add_cmd ("none", class_trace, trace_find_none_command, | |
1a966eab | 3669 | _("De-select any trace frame and resume 'live' debugging."), |
c906108c SS |
3670 | &tfindlist); |
3671 | ||
3672 | add_cmd ("start", class_trace, trace_find_start_command, | |
1a966eab | 3673 | _("Select the first trace frame in the trace buffer."), |
c906108c SS |
3674 | &tfindlist); |
3675 | ||
c5aa993b | 3676 | add_com ("tstatus", class_trace, trace_status_command, |
1bedd215 | 3677 | _("Display the status of the current trace data collection.")); |
c906108c | 3678 | |
c5aa993b | 3679 | add_com ("tstop", class_trace, trace_stop_command, |
1bedd215 | 3680 | _("Stop trace data collection.")); |
c906108c SS |
3681 | |
3682 | add_com ("tstart", class_trace, trace_start_command, | |
1bedd215 | 3683 | _("Start trace data collection.")); |
c906108c | 3684 | |
1bedd215 AC |
3685 | add_com ("end", class_trace, end_actions_pseudocommand, _("\ |
3686 | Ends a list of commands or actions.\n\ | |
c906108c SS |
3687 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
3688 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
3689 | such a list.\n\n\ | |
1bedd215 | 3690 | Note: the \"end\" command cannot be used at the gdb prompt.")); |
c906108c | 3691 | |
1bedd215 AC |
3692 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, _("\ |
3693 | Specify single-stepping behavior at a tracepoint.\n\ | |
c906108c SS |
3694 | Argument is number of instructions to trace in single-step mode\n\ |
3695 | following the tracepoint. This command is normally followed by\n\ | |
3696 | one or more \"collect\" commands, to specify what to collect\n\ | |
3697 | while single-stepping.\n\n\ | |
1bedd215 | 3698 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 3699 | |
c5aa993b JM |
3700 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
3701 | add_com_alias ("stepping", "while-stepping", class_alias, 0); | |
c906108c | 3702 | |
1bedd215 AC |
3703 | add_com ("collect", class_trace, collect_pseudocommand, _("\ |
3704 | Specify one or more data items to be collected at a tracepoint.\n\ | |
c906108c SS |
3705 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
3706 | collect all data (variables, registers) referenced by that expression.\n\ | |
3707 | Also accepts the following special arguments:\n\ | |
3708 | $regs -- all registers.\n\ | |
3709 | $args -- all function arguments.\n\ | |
3710 | $locals -- all variables local to the block/function scope.\n\ | |
1bedd215 | 3711 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 3712 | |
6da95a67 SS |
3713 | add_com ("teval", class_trace, teval_pseudocommand, _("\ |
3714 | Specify one or more expressions to be evaluated at a tracepoint.\n\ | |
3715 | Accepts a comma-separated list of (one or more) expressions.\n\ | |
3716 | The result of each evaluation will be discarded.\n\ | |
3717 | Note: this command can only be used in a tracepoint \"actions\" list.")); | |
3718 | ||
1bedd215 AC |
3719 | add_com ("actions", class_trace, trace_actions_command, _("\ |
3720 | Specify the actions to be taken at a tracepoint.\n\ | |
c906108c SS |
3721 | Tracepoint actions may include collecting of specified data, \n\ |
3722 | single-stepping, or enabling/disabling other tracepoints, \n\ | |
1bedd215 | 3723 | depending on target's capabilities.")); |
c906108c | 3724 | |
236f1d4d SS |
3725 | default_collect = xstrdup (""); |
3726 | add_setshow_string_cmd ("default-collect", class_trace, | |
3727 | &default_collect, _("\ | |
3728 | Set the list of expressions to collect by default"), _("\ | |
3729 | Show the list of expressions to collect by default"), NULL, | |
3730 | NULL, NULL, | |
3731 | &setlist, &showlist); | |
3732 | ||
d5551862 SS |
3733 | add_setshow_boolean_cmd ("disconnected-tracing", no_class, |
3734 | &disconnected_tracing, _("\ | |
3735 | Set whether tracing continues after GDB disconnects."), _("\ | |
3736 | Show whether tracing continues after GDB disconnects."), _("\ | |
3737 | Use this to continue a tracing run even if GDB disconnects\n\ | |
3738 | or detaches from the target. You can reconnect later and look at\n\ | |
3739 | trace data collected in the meantime."), | |
3740 | set_disconnected_tracing, | |
3741 | NULL, | |
3742 | &setlist, | |
3743 | &showlist); | |
00bf0b85 | 3744 | |
4daf5ac0 SS |
3745 | add_setshow_boolean_cmd ("circular-trace-buffer", no_class, |
3746 | &circular_trace_buffer, _("\ | |
3747 | Set target's use of circular trace buffer."), _("\ | |
3748 | Show target's use of circular trace buffer."), _("\ | |
3749 | Use this to make the trace buffer into a circular buffer,\n\ | |
3750 | which will discard traceframes (oldest first) instead of filling\n\ | |
3751 | up and stopping the trace run."), | |
3752 | set_circular_trace_buffer, | |
3753 | NULL, | |
3754 | &setlist, | |
3755 | &showlist); | |
3756 | ||
00bf0b85 SS |
3757 | init_tfile_ops (); |
3758 | ||
3759 | add_target (&tfile_ops); | |
c906108c | 3760 | } |