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" |
2c58c0a9 | 47 | #include "stack.h" |
fce3c1f0 | 48 | #include "gdbcore.h" |
c906108c SS |
49 | |
50 | #include "ax.h" | |
51 | #include "ax-gdb.h" | |
52 | ||
53 | /* readline include files */ | |
dbda9972 AC |
54 | #include "readline/readline.h" |
55 | #include "readline/history.h" | |
c906108c SS |
56 | |
57 | /* readline defines this. */ | |
58 | #undef savestring | |
59 | ||
60 | #ifdef HAVE_UNISTD_H | |
61 | #include <unistd.h> | |
62 | #endif | |
63 | ||
00bf0b85 SS |
64 | #ifndef O_LARGEFILE |
65 | #define O_LARGEFILE 0 | |
66 | #endif | |
67 | ||
68 | extern int hex2bin (const char *hex, gdb_byte *bin, int count); | |
69 | extern int bin2hex (const gdb_byte *bin, char *hex, int count); | |
70 | ||
d5551862 SS |
71 | extern void stop_tracing (); |
72 | ||
d183932d MS |
73 | /* Maximum length of an agent aexpression. |
74 | This accounts for the fact that packets are limited to 400 bytes | |
c906108c SS |
75 | (which includes everything -- including the checksum), and assumes |
76 | the worst case of maximum length for each of the pieces of a | |
77 | continuation packet. | |
c5aa993b | 78 | |
c906108c SS |
79 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
80 | large. (400 - 31)/2 == 184 */ | |
81 | #define MAX_AGENT_EXPR_LEN 184 | |
82 | ||
98c5b216 TT |
83 | /* A hook used to notify the UI of tracepoint operations. */ |
84 | ||
85 | void (*deprecated_trace_find_hook) (char *arg, int from_tty); | |
86 | void (*deprecated_trace_start_stop_hook) (int start, int from_tty); | |
c906108c | 87 | |
9a4105ab AC |
88 | extern void (*deprecated_readline_begin_hook) (char *, ...); |
89 | extern char *(*deprecated_readline_hook) (char *); | |
90 | extern void (*deprecated_readline_end_hook) (void); | |
c906108c | 91 | |
104c1213 JM |
92 | /* GDB commands implemented in other modules: |
93 | */ | |
94 | ||
a14ed312 | 95 | extern void output_command (char *, int); |
104c1213 | 96 | |
c906108c SS |
97 | /* |
98 | Tracepoint.c: | |
99 | ||
100 | This module defines the following debugger commands: | |
101 | trace : set a tracepoint on a function, line, or address. | |
102 | info trace : list all debugger-defined tracepoints. | |
103 | delete trace : delete one or more tracepoints. | |
104 | enable trace : enable one or more tracepoints. | |
105 | disable trace : disable one or more tracepoints. | |
106 | actions : specify actions to be taken at a tracepoint. | |
107 | passcount : specify a pass count for a tracepoint. | |
108 | tstart : start a trace experiment. | |
109 | tstop : stop a trace experiment. | |
110 | tstatus : query the status of a trace experiment. | |
111 | tfind : find a trace frame in the trace buffer. | |
112 | tdump : print everything collected at the current tracepoint. | |
113 | save-tracepoints : write tracepoint setup into a file. | |
114 | ||
115 | This module defines the following user-visible debugger variables: | |
116 | $trace_frame : sequence number of trace frame currently being debugged. | |
117 | $trace_line : source line of trace frame currently being debugged. | |
118 | $trace_file : source file of trace frame currently being debugged. | |
119 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
c5aa993b | 120 | */ |
c906108c SS |
121 | |
122 | ||
123 | /* ======= Important global variables: ======= */ | |
124 | ||
f61e138d SS |
125 | /* The list of all trace state variables. We don't retain pointers to |
126 | any of these for any reason - API is by name or number only - so it | |
127 | works to have a vector of objects. */ | |
128 | ||
129 | typedef struct trace_state_variable tsv_s; | |
130 | DEF_VEC_O(tsv_s); | |
131 | ||
132 | static VEC(tsv_s) *tvariables; | |
133 | ||
134 | /* The next integer to assign to a variable. */ | |
135 | ||
136 | static int next_tsv_number = 1; | |
137 | ||
c906108c SS |
138 | /* Number of last traceframe collected. */ |
139 | static int traceframe_number; | |
140 | ||
141 | /* Tracepoint for last traceframe collected. */ | |
142 | static int tracepoint_number; | |
143 | ||
144 | /* Symbol for function for last traceframe collected */ | |
145 | static struct symbol *traceframe_fun; | |
146 | ||
147 | /* Symtab and line for last traceframe collected */ | |
148 | static struct symtab_and_line traceframe_sal; | |
149 | ||
150 | /* Tracing command lists */ | |
151 | static struct cmd_list_element *tfindlist; | |
152 | ||
236f1d4d | 153 | /* List of expressions to collect by default at each tracepoint hit. */ |
35b1e5cc | 154 | char *default_collect = ""; |
236f1d4d | 155 | |
d5551862 SS |
156 | static int disconnected_tracing; |
157 | ||
4daf5ac0 SS |
158 | /* This variable controls whether we ask the target for a linear or |
159 | circular trace buffer. */ | |
160 | ||
161 | static int circular_trace_buffer; | |
162 | ||
c906108c | 163 | /* ======= Important command functions: ======= */ |
a14ed312 KB |
164 | static void trace_actions_command (char *, int); |
165 | static void trace_start_command (char *, int); | |
166 | static void trace_stop_command (char *, int); | |
167 | static void trace_status_command (char *, int); | |
168 | static void trace_find_command (char *, int); | |
169 | static void trace_find_pc_command (char *, int); | |
170 | static void trace_find_tracepoint_command (char *, int); | |
171 | static void trace_find_line_command (char *, int); | |
172 | static void trace_find_range_command (char *, int); | |
173 | static void trace_find_outside_command (char *, int); | |
a14ed312 | 174 | static void trace_dump_command (char *, int); |
c906108c SS |
175 | |
176 | /* support routines */ | |
c906108c SS |
177 | |
178 | struct collection_list; | |
a14ed312 | 179 | static void add_aexpr (struct collection_list *, struct agent_expr *); |
47b667de | 180 | static char *mem2hex (gdb_byte *, char *, int); |
a14ed312 KB |
181 | static void add_register (struct collection_list *collection, |
182 | unsigned int regno); | |
392a587b | 183 | |
d5551862 SS |
184 | extern void send_disconnected_tracing_value (int value); |
185 | ||
00bf0b85 SS |
186 | static void free_uploaded_tps (struct uploaded_tp **utpp); |
187 | static void free_uploaded_tsvs (struct uploaded_tsv **utsvp); | |
188 | ||
189 | ||
a14ed312 | 190 | extern void _initialize_tracepoint (void); |
c906108c | 191 | |
00bf0b85 SS |
192 | static struct trace_status trace_status; |
193 | ||
194 | char *stop_reason_names[] = { | |
195 | "tunknown", | |
196 | "tnotrun", | |
197 | "tstop", | |
198 | "tfull", | |
199 | "tdisconnected", | |
6c28cbf2 SS |
200 | "tpasscount", |
201 | "terror" | |
00bf0b85 SS |
202 | }; |
203 | ||
204 | struct trace_status * | |
205 | current_trace_status () | |
206 | { | |
207 | return &trace_status; | |
208 | } | |
209 | ||
c906108c SS |
210 | /* Set traceframe number to NUM. */ |
211 | static void | |
fba45db2 | 212 | set_traceframe_num (int num) |
c906108c SS |
213 | { |
214 | traceframe_number = num; | |
4fa62494 | 215 | set_internalvar_integer (lookup_internalvar ("trace_frame"), num); |
c906108c SS |
216 | } |
217 | ||
218 | /* Set tracepoint number to NUM. */ | |
219 | static void | |
fba45db2 | 220 | set_tracepoint_num (int num) |
c906108c SS |
221 | { |
222 | tracepoint_number = num; | |
4fa62494 | 223 | set_internalvar_integer (lookup_internalvar ("tracepoint"), num); |
c906108c SS |
224 | } |
225 | ||
226 | /* Set externally visible debug variables for querying/printing | |
227 | the traceframe context (line, function, file) */ | |
228 | ||
229 | static void | |
fb14de7b | 230 | set_traceframe_context (struct frame_info *trace_frame) |
c906108c | 231 | { |
fb14de7b UW |
232 | CORE_ADDR trace_pc; |
233 | ||
fb14de7b | 234 | if (trace_frame == NULL) /* Cease debugging any trace buffers. */ |
c906108c SS |
235 | { |
236 | traceframe_fun = 0; | |
237 | traceframe_sal.pc = traceframe_sal.line = 0; | |
238 | traceframe_sal.symtab = NULL; | |
4fa62494 UW |
239 | clear_internalvar (lookup_internalvar ("trace_func")); |
240 | clear_internalvar (lookup_internalvar ("trace_file")); | |
241 | set_internalvar_integer (lookup_internalvar ("trace_line"), -1); | |
c906108c SS |
242 | return; |
243 | } | |
244 | ||
d183932d | 245 | /* Save as globals for internal use. */ |
fb14de7b | 246 | trace_pc = get_frame_pc (trace_frame); |
c906108c SS |
247 | traceframe_sal = find_pc_line (trace_pc, 0); |
248 | traceframe_fun = find_pc_function (trace_pc); | |
249 | ||
d183932d MS |
250 | /* Save linenumber as "$trace_line", a debugger variable visible to |
251 | users. */ | |
4fa62494 UW |
252 | set_internalvar_integer (lookup_internalvar ("trace_line"), |
253 | traceframe_sal.line); | |
c906108c | 254 | |
d183932d MS |
255 | /* Save func name as "$trace_func", a debugger variable visible to |
256 | users. */ | |
4fa62494 UW |
257 | if (traceframe_fun == NULL |
258 | || SYMBOL_LINKAGE_NAME (traceframe_fun) == NULL) | |
259 | clear_internalvar (lookup_internalvar ("trace_func")); | |
c906108c | 260 | else |
78267919 UW |
261 | set_internalvar_string (lookup_internalvar ("trace_func"), |
262 | SYMBOL_LINKAGE_NAME (traceframe_fun)); | |
c906108c | 263 | |
d183932d MS |
264 | /* Save file name as "$trace_file", a debugger variable visible to |
265 | users. */ | |
4fa62494 UW |
266 | if (traceframe_sal.symtab == NULL |
267 | || traceframe_sal.symtab->filename == NULL) | |
268 | clear_internalvar (lookup_internalvar ("trace_file")); | |
c906108c | 269 | else |
78267919 UW |
270 | set_internalvar_string (lookup_internalvar ("trace_file"), |
271 | traceframe_sal.symtab->filename); | |
c906108c SS |
272 | } |
273 | ||
f61e138d SS |
274 | /* Create a new trace state variable with the given name. */ |
275 | ||
276 | struct trace_state_variable * | |
277 | create_trace_state_variable (const char *name) | |
278 | { | |
279 | struct trace_state_variable tsv; | |
280 | ||
281 | memset (&tsv, 0, sizeof (tsv)); | |
40e1c229 | 282 | tsv.name = xstrdup (name); |
f61e138d SS |
283 | tsv.number = next_tsv_number++; |
284 | return VEC_safe_push (tsv_s, tvariables, &tsv); | |
285 | } | |
286 | ||
287 | /* Look for a trace state variable of the given name. */ | |
288 | ||
289 | struct trace_state_variable * | |
290 | find_trace_state_variable (const char *name) | |
291 | { | |
292 | struct trace_state_variable *tsv; | |
293 | int ix; | |
294 | ||
295 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
296 | if (strcmp (name, tsv->name) == 0) | |
297 | return tsv; | |
298 | ||
299 | return NULL; | |
300 | } | |
301 | ||
302 | void | |
303 | delete_trace_state_variable (const char *name) | |
304 | { | |
305 | struct trace_state_variable *tsv; | |
306 | int ix; | |
307 | ||
308 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
309 | if (strcmp (name, tsv->name) == 0) | |
310 | { | |
40e1c229 | 311 | xfree ((void *)tsv->name); |
f61e138d SS |
312 | VEC_unordered_remove (tsv_s, tvariables, ix); |
313 | return; | |
314 | } | |
315 | ||
316 | warning (_("No trace variable named \"$%s\", not deleting"), name); | |
317 | } | |
318 | ||
319 | /* The 'tvariable' command collects a name and optional expression to | |
320 | evaluate into an initial value. */ | |
321 | ||
322 | void | |
323 | trace_variable_command (char *args, int from_tty) | |
324 | { | |
325 | struct expression *expr; | |
326 | struct cleanup *old_chain; | |
327 | struct internalvar *intvar = NULL; | |
328 | LONGEST initval = 0; | |
329 | struct trace_state_variable *tsv; | |
330 | ||
331 | if (!args || !*args) | |
332 | error_no_arg (_("trace state variable name")); | |
333 | ||
334 | /* All the possible valid arguments are expressions. */ | |
335 | expr = parse_expression (args); | |
336 | old_chain = make_cleanup (free_current_contents, &expr); | |
337 | ||
338 | if (expr->nelts == 0) | |
339 | error (_("No expression?")); | |
340 | ||
341 | /* Only allow two syntaxes; "$name" and "$name=value". */ | |
342 | if (expr->elts[0].opcode == OP_INTERNALVAR) | |
343 | { | |
344 | intvar = expr->elts[1].internalvar; | |
345 | } | |
346 | else if (expr->elts[0].opcode == BINOP_ASSIGN | |
347 | && expr->elts[1].opcode == OP_INTERNALVAR) | |
348 | { | |
349 | intvar = expr->elts[2].internalvar; | |
350 | initval = value_as_long (evaluate_subexpression_type (expr, 4)); | |
351 | } | |
352 | else | |
353 | error (_("Syntax must be $NAME [ = EXPR ]")); | |
354 | ||
355 | if (!intvar) | |
356 | error (_("No name given")); | |
357 | ||
358 | if (strlen (internalvar_name (intvar)) <= 0) | |
359 | error (_("Must supply a non-empty variable name")); | |
360 | ||
361 | /* If the variable already exists, just change its initial value. */ | |
362 | tsv = find_trace_state_variable (internalvar_name (intvar)); | |
363 | if (tsv) | |
364 | { | |
365 | tsv->initial_value = initval; | |
366 | printf_filtered (_("Trace state variable $%s now has initial value %s.\n"), | |
367 | tsv->name, plongest (tsv->initial_value)); | |
368 | return; | |
369 | } | |
370 | ||
371 | /* Create a new variable. */ | |
372 | tsv = create_trace_state_variable (internalvar_name (intvar)); | |
373 | tsv->initial_value = initval; | |
374 | ||
375 | printf_filtered (_("Trace state variable $%s created, with initial value %s.\n"), | |
376 | tsv->name, plongest (tsv->initial_value)); | |
377 | ||
378 | do_cleanups (old_chain); | |
379 | } | |
380 | ||
381 | void | |
382 | delete_trace_variable_command (char *args, int from_tty) | |
383 | { | |
384 | int i, ix; | |
385 | char **argv; | |
386 | struct cleanup *back_to; | |
387 | struct trace_state_variable *tsv; | |
388 | ||
389 | if (args == NULL) | |
390 | { | |
391 | if (query (_("Delete all trace state variables? "))) | |
392 | VEC_free (tsv_s, tvariables); | |
393 | dont_repeat (); | |
394 | return; | |
395 | } | |
396 | ||
397 | argv = gdb_buildargv (args); | |
398 | back_to = make_cleanup_freeargv (argv); | |
399 | ||
400 | for (i = 0; argv[i] != NULL; i++) | |
401 | { | |
402 | if (*argv[i] == '$') | |
403 | delete_trace_state_variable (argv[i] + 1); | |
404 | else | |
405 | warning (_("Name \"%s\" not prefixed with '$', ignoring"), argv[i]); | |
406 | } | |
407 | ||
408 | do_cleanups (back_to); | |
409 | ||
410 | dont_repeat (); | |
411 | } | |
412 | ||
40e1c229 VP |
413 | void |
414 | tvariables_info_1 (void) | |
f61e138d SS |
415 | { |
416 | struct trace_state_variable *tsv; | |
417 | int ix; | |
40e1c229 VP |
418 | int count = 0; |
419 | struct cleanup *back_to; | |
f61e138d | 420 | |
40e1c229 | 421 | if (VEC_length (tsv_s, tvariables) == 0 && !ui_out_is_mi_like_p (uiout)) |
f61e138d SS |
422 | { |
423 | printf_filtered (_("No trace state variables.\n")); | |
424 | return; | |
425 | } | |
426 | ||
35b1e5cc | 427 | /* Try to acquire values from the target. */ |
4baf5cf4 | 428 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix, ++count) |
35b1e5cc SS |
429 | tsv->value_known = target_get_trace_state_variable_value (tsv->number, |
430 | &(tsv->value)); | |
431 | ||
40e1c229 VP |
432 | back_to = make_cleanup_ui_out_table_begin_end (uiout, 3, |
433 | count, "trace-variables"); | |
434 | ui_out_table_header (uiout, 15, ui_left, "name", "Name"); | |
435 | ui_out_table_header (uiout, 11, ui_left, "initial", "Initial"); | |
436 | ui_out_table_header (uiout, 11, ui_left, "current", "Current"); | |
437 | ||
438 | ui_out_table_body (uiout); | |
f61e138d SS |
439 | |
440 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
441 | { | |
40e1c229 VP |
442 | struct cleanup *back_to2; |
443 | char *c; | |
444 | char *name; | |
445 | ||
446 | back_to2 = make_cleanup_ui_out_tuple_begin_end (uiout, "variable"); | |
447 | ||
448 | name = concat ("$", tsv->name, NULL); | |
449 | make_cleanup (xfree, name); | |
450 | ui_out_field_string (uiout, "name", name); | |
451 | ui_out_field_string (uiout, "initial", plongest (tsv->initial_value)); | |
452 | ||
f61e138d | 453 | if (tsv->value_known) |
40e1c229 VP |
454 | c = plongest (tsv->value); |
455 | else if (ui_out_is_mi_like_p (uiout)) | |
456 | /* For MI, we prefer not to use magic string constants, but rather | |
457 | omit the field completely. The difference between unknown and | |
458 | undefined does not seem important enough to represent. */ | |
459 | c = NULL; | |
00bf0b85 | 460 | else if (current_trace_status ()->running || traceframe_number >= 0) |
f61e138d | 461 | /* The value is/was defined, but we don't have it. */ |
40e1c229 | 462 | c = "<unknown>"; |
f61e138d SS |
463 | else |
464 | /* It is not meaningful to ask about the value. */ | |
40e1c229 VP |
465 | c = "<undefined>"; |
466 | if (c) | |
467 | ui_out_field_string (uiout, "current", c); | |
468 | ui_out_text (uiout, "\n"); | |
469 | ||
470 | do_cleanups (back_to2); | |
f61e138d | 471 | } |
40e1c229 VP |
472 | |
473 | do_cleanups (back_to); | |
474 | } | |
475 | ||
476 | /* List all the trace state variables. */ | |
477 | ||
478 | static void | |
479 | tvariables_info (char *args, int from_tty) | |
480 | { | |
481 | tvariables_info_1 (); | |
f61e138d SS |
482 | } |
483 | ||
8bf6485c SS |
484 | /* Stash definitions of tsvs into the given file. */ |
485 | ||
486 | void | |
487 | save_trace_state_variables (struct ui_file *fp) | |
488 | { | |
489 | struct trace_state_variable *tsv; | |
490 | int ix; | |
491 | ||
492 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
493 | { | |
494 | fprintf_unfiltered (fp, "tvariable $%s", tsv->name); | |
495 | if (tsv->initial_value) | |
496 | fprintf_unfiltered (fp, " = %s", plongest (tsv->initial_value)); | |
497 | fprintf_unfiltered (fp, "\n"); | |
498 | } | |
499 | } | |
500 | ||
c906108c SS |
501 | /* ACTIONS functions: */ |
502 | ||
c906108c | 503 | /* The three functions: |
c5aa993b JM |
504 | collect_pseudocommand, |
505 | while_stepping_pseudocommand, and | |
506 | end_actions_pseudocommand | |
c906108c SS |
507 | are placeholders for "commands" that are actually ONLY to be used |
508 | within a tracepoint action list. If the actual function is ever called, | |
509 | it means that somebody issued the "command" at the top level, | |
510 | which is always an error. */ | |
511 | ||
1042e4c0 | 512 | void |
fba45db2 | 513 | end_actions_pseudocommand (char *args, int from_tty) |
c906108c | 514 | { |
8a3fe4f8 | 515 | error (_("This command cannot be used at the top level.")); |
c906108c SS |
516 | } |
517 | ||
1042e4c0 | 518 | void |
fba45db2 | 519 | while_stepping_pseudocommand (char *args, int from_tty) |
c906108c | 520 | { |
8a3fe4f8 | 521 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
522 | } |
523 | ||
524 | static void | |
fba45db2 | 525 | collect_pseudocommand (char *args, int from_tty) |
c906108c | 526 | { |
8a3fe4f8 | 527 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
528 | } |
529 | ||
6da95a67 SS |
530 | static void |
531 | teval_pseudocommand (char *args, int from_tty) | |
532 | { | |
533 | error (_("This command can only be used in a tracepoint actions list.")); | |
534 | } | |
535 | ||
c906108c SS |
536 | /* Enter a list of actions for a tracepoint. */ |
537 | static void | |
fba45db2 | 538 | trace_actions_command (char *args, int from_tty) |
c906108c | 539 | { |
1042e4c0 | 540 | struct breakpoint *t; |
a7bdde9e | 541 | struct command_line *l; |
c906108c | 542 | |
c2d11a7d | 543 | t = get_tracepoint_by_number (&args, 0, 1); |
7a292a7a | 544 | if (t) |
c906108c | 545 | { |
a7bdde9e VP |
546 | char *tmpbuf = |
547 | xstrprintf ("Enter actions for tracepoint %d, one per line.", | |
548 | t->number); | |
549 | struct cleanup *cleanups = make_cleanup (xfree, tmpbuf); | |
550 | ||
551 | l = read_command_lines (tmpbuf, from_tty, 1, check_tracepoint_command, t); | |
552 | do_cleanups (cleanups); | |
553 | breakpoint_set_commands (t, l); | |
c906108c | 554 | } |
5c44784c | 555 | /* else just return */ |
c906108c SS |
556 | } |
557 | ||
fff87407 SS |
558 | /* Report the results of checking the agent expression, as errors or |
559 | internal errors. */ | |
560 | ||
561 | static void | |
562 | report_agent_reqs_errors (struct agent_expr *aexpr, struct agent_reqs *areqs) | |
563 | { | |
564 | /* All of the "flaws" are serious bytecode generation issues that | |
565 | should never occur. */ | |
566 | if (areqs->flaw != agent_flaw_none) | |
567 | internal_error (__FILE__, __LINE__, _("expression is malformed")); | |
568 | ||
569 | /* If analysis shows a stack underflow, GDB must have done something | |
570 | badly wrong in its bytecode generation. */ | |
571 | if (areqs->min_height < 0) | |
572 | internal_error (__FILE__, __LINE__, | |
573 | _("expression has min height < 0")); | |
574 | ||
575 | /* Issue this error if the stack is predicted to get too deep. The | |
576 | limit is rather arbitrary; a better scheme might be for the | |
577 | target to report how much stack it will have available. The | |
578 | depth roughly corresponds to parenthesization, so a limit of 20 | |
579 | amounts to 20 levels of expression nesting, which is actually | |
580 | a pretty big hairy expression. */ | |
581 | if (areqs->max_height > 20) | |
582 | error (_("Expression is too complicated.")); | |
583 | } | |
584 | ||
c906108c | 585 | /* worker function */ |
fff87407 | 586 | void |
1042e4c0 | 587 | validate_actionline (char **line, struct breakpoint *t) |
c906108c SS |
588 | { |
589 | struct cmd_list_element *c; | |
590 | struct expression *exp = NULL; | |
c906108c | 591 | struct cleanup *old_chain = NULL; |
9355b391 SS |
592 | char *p, *tmp_p; |
593 | struct bp_location *loc; | |
fff87407 SS |
594 | struct agent_expr *aexpr; |
595 | struct agent_reqs areqs; | |
c906108c | 596 | |
15255275 MS |
597 | /* if EOF is typed, *line is NULL */ |
598 | if (*line == NULL) | |
fff87407 | 599 | return; |
15255275 | 600 | |
104c1213 | 601 | for (p = *line; isspace ((int) *p);) |
c906108c SS |
602 | p++; |
603 | ||
d183932d MS |
604 | /* Symbol lookup etc. */ |
605 | if (*p == '\0') /* empty line: just prompt for another line. */ | |
fff87407 | 606 | return; |
c906108c | 607 | |
c5aa993b | 608 | if (*p == '#') /* comment line */ |
fff87407 | 609 | return; |
c906108c SS |
610 | |
611 | c = lookup_cmd (&p, cmdlist, "", -1, 1); | |
612 | if (c == 0) | |
fff87407 | 613 | error (_("`%s' is not a tracepoint action, or is ambiguous."), p); |
c5aa993b | 614 | |
bbaca940 | 615 | if (cmd_cfunc_eq (c, collect_pseudocommand)) |
c906108c | 616 | { |
c5aa993b JM |
617 | do |
618 | { /* repeat over a comma-separated list */ | |
619 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 620 | while (isspace ((int) *p)) |
c5aa993b | 621 | p++; |
c906108c | 622 | |
c5aa993b JM |
623 | if (*p == '$') /* look for special pseudo-symbols */ |
624 | { | |
c5aa993b JM |
625 | if ((0 == strncasecmp ("reg", p + 1, 3)) || |
626 | (0 == strncasecmp ("arg", p + 1, 3)) || | |
627 | (0 == strncasecmp ("loc", p + 1, 3))) | |
628 | { | |
629 | p = strchr (p, ','); | |
630 | continue; | |
631 | } | |
d183932d | 632 | /* else fall thru, treat p as an expression and parse it! */ |
c5aa993b | 633 | } |
9355b391 SS |
634 | tmp_p = p; |
635 | for (loc = t->loc; loc; loc = loc->next) | |
c5aa993b | 636 | { |
9355b391 SS |
637 | p = tmp_p; |
638 | exp = parse_exp_1 (&p, block_for_pc (loc->address), 1); | |
639 | old_chain = make_cleanup (free_current_contents, &exp); | |
640 | ||
641 | if (exp->elts[0].opcode == OP_VAR_VALUE) | |
c5aa993b | 642 | { |
9355b391 SS |
643 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) |
644 | { | |
fff87407 SS |
645 | error (_("constant `%s' (value %ld) will not be collected."), |
646 | SYMBOL_PRINT_NAME (exp->elts[2].symbol), | |
647 | SYMBOL_VALUE (exp->elts[2].symbol)); | |
9355b391 SS |
648 | } |
649 | else if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_OPTIMIZED_OUT) | |
650 | { | |
fff87407 SS |
651 | error (_("`%s' is optimized away and cannot be collected."), |
652 | SYMBOL_PRINT_NAME (exp->elts[2].symbol)); | |
9355b391 | 653 | } |
c5aa993b | 654 | } |
c906108c | 655 | |
9355b391 SS |
656 | /* We have something to collect, make sure that the expr to |
657 | bytecode translator can handle it and that it's not too | |
658 | long. */ | |
659 | aexpr = gen_trace_for_expr (loc->address, exp); | |
660 | make_cleanup_free_agent_expr (aexpr); | |
c906108c | 661 | |
9355b391 | 662 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
fff87407 | 663 | error (_("Expression is too complicated.")); |
c906108c | 664 | |
9355b391 SS |
665 | ax_reqs (aexpr, &areqs); |
666 | (void) make_cleanup (xfree, areqs.reg_mask); | |
c906108c | 667 | |
fff87407 | 668 | report_agent_reqs_errors (aexpr, &areqs); |
c906108c | 669 | |
9355b391 SS |
670 | do_cleanups (old_chain); |
671 | } | |
c5aa993b JM |
672 | } |
673 | while (p && *p++ == ','); | |
c906108c | 674 | } |
fff87407 | 675 | |
6da95a67 SS |
676 | else if (cmd_cfunc_eq (c, teval_pseudocommand)) |
677 | { | |
6da95a67 SS |
678 | do |
679 | { /* repeat over a comma-separated list */ | |
680 | QUIT; /* allow user to bail out with ^C */ | |
681 | while (isspace ((int) *p)) | |
682 | p++; | |
683 | ||
9355b391 SS |
684 | tmp_p = p; |
685 | for (loc = t->loc; loc; loc = loc->next) | |
686 | { | |
687 | p = tmp_p; | |
688 | /* Only expressions are allowed for this action. */ | |
689 | exp = parse_exp_1 (&p, block_for_pc (loc->address), 1); | |
690 | old_chain = make_cleanup (free_current_contents, &exp); | |
6da95a67 | 691 | |
9355b391 SS |
692 | /* We have something to evaluate, make sure that the expr to |
693 | bytecode translator can handle it and that it's not too | |
694 | long. */ | |
695 | aexpr = gen_eval_for_expr (loc->address, exp); | |
696 | make_cleanup_free_agent_expr (aexpr); | |
6da95a67 | 697 | |
9355b391 | 698 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
fff87407 SS |
699 | error (_("Expression is too complicated.")); |
700 | ||
701 | ax_reqs (aexpr, &areqs); | |
702 | (void) make_cleanup (xfree, areqs.reg_mask); | |
703 | ||
704 | report_agent_reqs_errors (aexpr, &areqs); | |
6da95a67 | 705 | |
9355b391 SS |
706 | do_cleanups (old_chain); |
707 | } | |
6da95a67 SS |
708 | } |
709 | while (p && *p++ == ','); | |
6da95a67 | 710 | } |
fff87407 | 711 | |
bbaca940 | 712 | else if (cmd_cfunc_eq (c, while_stepping_pseudocommand)) |
c906108c | 713 | { |
c5aa993b | 714 | char *steparg; /* in case warning is necessary */ |
c906108c | 715 | |
104c1213 | 716 | while (isspace ((int) *p)) |
c906108c SS |
717 | p++; |
718 | steparg = p; | |
719 | ||
fff87407 SS |
720 | if (*p == '\0' || (t->step_count = strtol (p, &p, 0)) == 0) |
721 | error (_("while-stepping step count `%s' is malformed."), *line); | |
c906108c | 722 | } |
fff87407 | 723 | |
bbaca940 | 724 | else if (cmd_cfunc_eq (c, end_actions_pseudocommand)) |
fff87407 SS |
725 | ; |
726 | ||
c906108c | 727 | else |
fff87407 | 728 | error (_("`%s' is not a supported tracepoint action."), *line); |
74b7792f AC |
729 | } |
730 | ||
f50e79a4 JB |
731 | enum { |
732 | memrange_absolute = -1 | |
733 | }; | |
734 | ||
c5aa993b JM |
735 | struct memrange |
736 | { | |
f50e79a4 JB |
737 | int type; /* memrange_absolute for absolute memory range, |
738 | else basereg number */ | |
c906108c SS |
739 | bfd_signed_vma start; |
740 | bfd_signed_vma end; | |
741 | }; | |
742 | ||
c5aa993b JM |
743 | struct collection_list |
744 | { | |
549678da | 745 | unsigned char regs_mask[32]; /* room for up to 256 regs */ |
c5aa993b JM |
746 | long listsize; |
747 | long next_memrange; | |
748 | struct memrange *list; | |
749 | long aexpr_listsize; /* size of array pointed to by expr_list elt */ | |
750 | long next_aexpr_elt; | |
751 | struct agent_expr **aexpr_list; | |
752 | ||
753 | } | |
754 | tracepoint_list, stepping_list; | |
c906108c SS |
755 | |
756 | /* MEMRANGE functions: */ | |
757 | ||
a14ed312 | 758 | static int memrange_cmp (const void *, const void *); |
c906108c SS |
759 | |
760 | /* compare memranges for qsort */ | |
761 | static int | |
fba45db2 | 762 | memrange_cmp (const void *va, const void *vb) |
c906108c SS |
763 | { |
764 | const struct memrange *a = va, *b = vb; | |
765 | ||
766 | if (a->type < b->type) | |
767 | return -1; | |
768 | if (a->type > b->type) | |
c5aa993b | 769 | return 1; |
f50e79a4 | 770 | if (a->type == memrange_absolute) |
c906108c | 771 | { |
c5aa993b JM |
772 | if ((bfd_vma) a->start < (bfd_vma) b->start) |
773 | return -1; | |
774 | if ((bfd_vma) a->start > (bfd_vma) b->start) | |
775 | return 1; | |
c906108c SS |
776 | } |
777 | else | |
778 | { | |
c5aa993b | 779 | if (a->start < b->start) |
c906108c | 780 | return -1; |
c5aa993b JM |
781 | if (a->start > b->start) |
782 | return 1; | |
c906108c SS |
783 | } |
784 | return 0; | |
785 | } | |
786 | ||
d183932d | 787 | /* Sort the memrange list using qsort, and merge adjacent memranges. */ |
c906108c | 788 | static void |
fba45db2 | 789 | memrange_sortmerge (struct collection_list *memranges) |
c906108c SS |
790 | { |
791 | int a, b; | |
792 | ||
c5aa993b | 793 | qsort (memranges->list, memranges->next_memrange, |
c906108c SS |
794 | sizeof (struct memrange), memrange_cmp); |
795 | if (memranges->next_memrange > 0) | |
796 | { | |
797 | for (a = 0, b = 1; b < memranges->next_memrange; b++) | |
798 | { | |
799 | if (memranges->list[a].type == memranges->list[b].type && | |
c5aa993b | 800 | memranges->list[b].start - memranges->list[a].end <= |
0c92afe8 | 801 | MAX_REGISTER_SIZE) |
c906108c SS |
802 | { |
803 | /* memrange b starts before memrange a ends; merge them. */ | |
804 | if (memranges->list[b].end > memranges->list[a].end) | |
805 | memranges->list[a].end = memranges->list[b].end; | |
806 | continue; /* next b, same a */ | |
807 | } | |
808 | a++; /* next a */ | |
809 | if (a != b) | |
c5aa993b | 810 | memcpy (&memranges->list[a], &memranges->list[b], |
c906108c SS |
811 | sizeof (struct memrange)); |
812 | } | |
813 | memranges->next_memrange = a + 1; | |
814 | } | |
815 | } | |
816 | ||
d183932d | 817 | /* Add a register to a collection list. */ |
392a587b | 818 | static void |
fba45db2 | 819 | add_register (struct collection_list *collection, unsigned int regno) |
c906108c SS |
820 | { |
821 | if (info_verbose) | |
822 | printf_filtered ("collect register %d\n", regno); | |
27e06d3e | 823 | if (regno >= (8 * sizeof (collection->regs_mask))) |
8a3fe4f8 | 824 | error (_("Internal: register number %d too large for tracepoint"), |
c906108c | 825 | regno); |
c5aa993b | 826 | collection->regs_mask[regno / 8] |= 1 << (regno % 8); |
c906108c SS |
827 | } |
828 | ||
829 | /* Add a memrange to a collection list */ | |
830 | static void | |
d183932d MS |
831 | add_memrange (struct collection_list *memranges, |
832 | int type, bfd_signed_vma base, | |
fba45db2 | 833 | unsigned long len) |
c906108c SS |
834 | { |
835 | if (info_verbose) | |
104c1213 JM |
836 | { |
837 | printf_filtered ("(%d,", type); | |
838 | printf_vma (base); | |
839 | printf_filtered (",%ld)\n", len); | |
840 | } | |
841 | ||
f50e79a4 | 842 | /* type: memrange_absolute == memory, other n == basereg */ |
c5aa993b | 843 | memranges->list[memranges->next_memrange].type = type; |
d183932d | 844 | /* base: addr if memory, offset if reg relative. */ |
c906108c SS |
845 | memranges->list[memranges->next_memrange].start = base; |
846 | /* len: we actually save end (base + len) for convenience */ | |
c5aa993b | 847 | memranges->list[memranges->next_memrange].end = base + len; |
c906108c SS |
848 | memranges->next_memrange++; |
849 | if (memranges->next_memrange >= memranges->listsize) | |
850 | { | |
851 | memranges->listsize *= 2; | |
c5aa993b | 852 | memranges->list = xrealloc (memranges->list, |
c906108c SS |
853 | memranges->listsize); |
854 | } | |
855 | ||
f50e79a4 | 856 | if (type != memrange_absolute) /* Better collect the base register! */ |
c906108c SS |
857 | add_register (memranges, type); |
858 | } | |
859 | ||
d183932d | 860 | /* Add a symbol to a collection list. */ |
c906108c | 861 | static void |
d183932d MS |
862 | collect_symbol (struct collection_list *collect, |
863 | struct symbol *sym, | |
a6d9a66e | 864 | struct gdbarch *gdbarch, |
0936ad1d SS |
865 | long frame_regno, long frame_offset, |
866 | CORE_ADDR scope) | |
c906108c | 867 | { |
c5aa993b | 868 | unsigned long len; |
104c1213 | 869 | unsigned int reg; |
c906108c | 870 | bfd_signed_vma offset; |
400c6af0 | 871 | int treat_as_expr = 0; |
c906108c | 872 | |
c5aa993b JM |
873 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
874 | switch (SYMBOL_CLASS (sym)) | |
875 | { | |
876 | default: | |
877 | printf_filtered ("%s: don't know symbol class %d\n", | |
3567439c | 878 | SYMBOL_PRINT_NAME (sym), |
d183932d | 879 | SYMBOL_CLASS (sym)); |
c5aa993b JM |
880 | break; |
881 | case LOC_CONST: | |
104c1213 | 882 | printf_filtered ("constant %s (value %ld) will not be collected.\n", |
3567439c | 883 | SYMBOL_PRINT_NAME (sym), SYMBOL_VALUE (sym)); |
c5aa993b JM |
884 | break; |
885 | case LOC_STATIC: | |
886 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
887 | if (info_verbose) | |
104c1213 JM |
888 | { |
889 | char tmp[40]; | |
890 | ||
891 | sprintf_vma (tmp, offset); | |
892 | printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", | |
3567439c | 893 | SYMBOL_PRINT_NAME (sym), len, |
d183932d | 894 | tmp /* address */); |
104c1213 | 895 | } |
400c6af0 SS |
896 | /* A struct may be a C++ class with static fields, go to general |
897 | expression handling. */ | |
898 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT) | |
899 | treat_as_expr = 1; | |
900 | else | |
901 | add_memrange (collect, memrange_absolute, offset, len); | |
c5aa993b JM |
902 | break; |
903 | case LOC_REGISTER: | |
a6d9a66e | 904 | reg = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); |
c5aa993b | 905 | if (info_verbose) |
d183932d | 906 | printf_filtered ("LOC_REG[parm] %s: ", |
3567439c | 907 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 908 | add_register (collect, reg); |
d183932d MS |
909 | /* Check for doubles stored in two registers. */ |
910 | /* FIXME: how about larger types stored in 3 or more regs? */ | |
c5aa993b | 911 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT && |
a6d9a66e | 912 | len > register_size (gdbarch, reg)) |
c5aa993b JM |
913 | add_register (collect, reg + 1); |
914 | break; | |
915 | case LOC_REF_ARG: | |
916 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); | |
917 | printf_filtered (" (will not collect %s)\n", | |
3567439c | 918 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
919 | break; |
920 | case LOC_ARG: | |
921 | reg = frame_regno; | |
922 | offset = frame_offset + SYMBOL_VALUE (sym); | |
923 | if (info_verbose) | |
924 | { | |
104c1213 | 925 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 926 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
927 | printf_vma (offset); |
928 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
929 | } |
930 | add_memrange (collect, reg, offset, len); | |
931 | break; | |
932 | case LOC_REGPARM_ADDR: | |
933 | reg = SYMBOL_VALUE (sym); | |
934 | offset = 0; | |
935 | if (info_verbose) | |
936 | { | |
104c1213 | 937 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ", |
3567439c | 938 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
939 | printf_vma (offset); |
940 | printf_filtered (" from reg %d\n", reg); | |
c5aa993b JM |
941 | } |
942 | add_memrange (collect, reg, offset, len); | |
943 | break; | |
944 | case LOC_LOCAL: | |
c5aa993b JM |
945 | reg = frame_regno; |
946 | offset = frame_offset + SYMBOL_VALUE (sym); | |
947 | if (info_verbose) | |
948 | { | |
104c1213 | 949 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 950 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
951 | printf_vma (offset); |
952 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
953 | } |
954 | add_memrange (collect, reg, offset, len); | |
955 | break; | |
a0405854 | 956 | |
c5aa993b | 957 | case LOC_UNRESOLVED: |
a0405854 | 958 | treat_as_expr = 1; |
c5aa993b | 959 | break; |
a0405854 | 960 | |
c5aa993b | 961 | case LOC_OPTIMIZED_OUT: |
8e1a459b | 962 | printf_filtered ("%s has been optimized out of existence.\n", |
3567439c | 963 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 964 | break; |
0936ad1d SS |
965 | |
966 | case LOC_COMPUTED: | |
400c6af0 | 967 | treat_as_expr = 1; |
0936ad1d | 968 | break; |
c5aa993b | 969 | } |
400c6af0 SS |
970 | |
971 | /* Expressions are the most general case. */ | |
972 | if (treat_as_expr) | |
973 | { | |
974 | struct agent_expr *aexpr; | |
975 | struct cleanup *old_chain1 = NULL; | |
976 | struct agent_reqs areqs; | |
977 | ||
978 | aexpr = gen_trace_for_var (scope, gdbarch, sym); | |
979 | ||
980 | /* It can happen that the symbol is recorded as a computed | |
981 | location, but it's been optimized away and doesn't actually | |
982 | have a location expression. */ | |
983 | if (!aexpr) | |
984 | { | |
985 | printf_filtered ("%s has been optimized out of existence.\n", | |
986 | SYMBOL_PRINT_NAME (sym)); | |
987 | return; | |
988 | } | |
989 | ||
990 | old_chain1 = make_cleanup_free_agent_expr (aexpr); | |
991 | ||
992 | ax_reqs (aexpr, &areqs); | |
fff87407 SS |
993 | |
994 | report_agent_reqs_errors (aexpr, &areqs); | |
400c6af0 SS |
995 | |
996 | discard_cleanups (old_chain1); | |
997 | add_aexpr (collect, aexpr); | |
998 | ||
999 | /* take care of the registers */ | |
1000 | if (areqs.reg_mask_len > 0) | |
1001 | { | |
1002 | int ndx1, ndx2; | |
1003 | ||
1004 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) | |
1005 | { | |
1006 | QUIT; /* allow user to bail out with ^C */ | |
1007 | if (areqs.reg_mask[ndx1] != 0) | |
1008 | { | |
1009 | /* assume chars have 8 bits */ | |
1010 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
1011 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) | |
1012 | /* it's used -- record it */ | |
1013 | add_register (collect, ndx1 * 8 + ndx2); | |
1014 | } | |
1015 | } | |
1016 | } | |
1017 | } | |
c906108c SS |
1018 | } |
1019 | ||
2c58c0a9 PA |
1020 | /* Data to be passed around in the calls to the locals and args |
1021 | iterators. */ | |
1022 | ||
1023 | struct add_local_symbols_data | |
1024 | { | |
1025 | struct collection_list *collect; | |
1026 | struct gdbarch *gdbarch; | |
1027 | CORE_ADDR pc; | |
1028 | long frame_regno; | |
1029 | long frame_offset; | |
1030 | int count; | |
1031 | }; | |
1032 | ||
1033 | /* The callback for the locals and args iterators */ | |
1034 | ||
1035 | static void | |
1036 | do_collect_symbol (const char *print_name, | |
1037 | struct symbol *sym, | |
1038 | void *cb_data) | |
1039 | { | |
1040 | struct add_local_symbols_data *p = cb_data; | |
1041 | ||
1042 | collect_symbol (p->collect, sym, p->gdbarch, p->frame_regno, | |
1043 | p->frame_offset, p->pc); | |
1044 | p->count++; | |
1045 | } | |
1046 | ||
c906108c SS |
1047 | /* Add all locals (or args) symbols to collection list */ |
1048 | static void | |
a6d9a66e UW |
1049 | add_local_symbols (struct collection_list *collect, |
1050 | struct gdbarch *gdbarch, CORE_ADDR pc, | |
fba45db2 | 1051 | long frame_regno, long frame_offset, int type) |
c906108c | 1052 | { |
c5aa993b | 1053 | struct block *block; |
2c58c0a9 PA |
1054 | struct add_local_symbols_data cb_data; |
1055 | ||
1056 | cb_data.collect = collect; | |
1057 | cb_data.gdbarch = gdbarch; | |
1058 | cb_data.pc = pc; | |
1059 | cb_data.frame_regno = frame_regno; | |
1060 | cb_data.frame_offset = frame_offset; | |
1061 | cb_data.count = 0; | |
c906108c | 1062 | |
2c58c0a9 | 1063 | if (type == 'L') |
c906108c | 1064 | { |
2c58c0a9 PA |
1065 | block = block_for_pc (pc); |
1066 | if (block == NULL) | |
c906108c | 1067 | { |
2c58c0a9 PA |
1068 | warning (_("Can't collect locals; " |
1069 | "no symbol table info available.\n")); | |
1070 | return; | |
c906108c | 1071 | } |
2c58c0a9 PA |
1072 | |
1073 | iterate_over_block_local_vars (block, do_collect_symbol, &cb_data); | |
1074 | if (cb_data.count == 0) | |
1075 | warning (_("No locals found in scope.")); | |
1076 | } | |
1077 | else | |
1078 | { | |
1079 | pc = get_pc_function_start (pc); | |
1080 | block = block_for_pc (pc); | |
1081 | if (block == NULL) | |
1082 | { | |
1083 | warning (_("Can't collect args; no symbol table info available.\n")); | |
1084 | return; | |
1085 | } | |
1086 | ||
1087 | iterate_over_block_arg_vars (block, do_collect_symbol, &cb_data); | |
1088 | if (cb_data.count == 0) | |
1089 | warning (_("No args found in scope.")); | |
c906108c | 1090 | } |
c906108c SS |
1091 | } |
1092 | ||
1093 | /* worker function */ | |
1094 | static void | |
fba45db2 | 1095 | clear_collection_list (struct collection_list *list) |
c906108c SS |
1096 | { |
1097 | int ndx; | |
1098 | ||
1099 | list->next_memrange = 0; | |
1100 | for (ndx = 0; ndx < list->next_aexpr_elt; ndx++) | |
1101 | { | |
c5aa993b | 1102 | free_agent_expr (list->aexpr_list[ndx]); |
c906108c SS |
1103 | list->aexpr_list[ndx] = NULL; |
1104 | } | |
1105 | list->next_aexpr_elt = 0; | |
1106 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); | |
1107 | } | |
1108 | ||
1109 | /* reduce a collection list to string form (for gdb protocol) */ | |
1110 | static char ** | |
fba45db2 | 1111 | stringify_collection_list (struct collection_list *list, char *string) |
c906108c SS |
1112 | { |
1113 | char temp_buf[2048]; | |
104c1213 | 1114 | char tmp2[40]; |
c906108c SS |
1115 | int count; |
1116 | int ndx = 0; | |
1117 | char *(*str_list)[]; | |
1118 | char *end; | |
c5aa993b | 1119 | long i; |
c906108c SS |
1120 | |
1121 | count = 1 + list->next_memrange + list->next_aexpr_elt + 1; | |
c5aa993b | 1122 | str_list = (char *(*)[]) xmalloc (count * sizeof (char *)); |
c906108c SS |
1123 | |
1124 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) | |
1125 | if (list->regs_mask[i] != 0) /* skip leading zeroes in regs_mask */ | |
1126 | break; | |
1127 | if (list->regs_mask[i] != 0) /* prepare to send regs_mask to the stub */ | |
1128 | { | |
1129 | if (info_verbose) | |
1130 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
1131 | end = temp_buf; | |
c5aa993b | 1132 | *end++ = 'R'; |
c906108c SS |
1133 | for (; i >= 0; i--) |
1134 | { | |
c5aa993b | 1135 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
1136 | if (info_verbose) |
1137 | printf_filtered ("%02X", list->regs_mask[i]); | |
c5aa993b | 1138 | sprintf (end, "%02X", list->regs_mask[i]); |
c906108c SS |
1139 | end += 2; |
1140 | } | |
1b36a34b | 1141 | (*str_list)[ndx] = xstrdup (temp_buf); |
c906108c SS |
1142 | ndx++; |
1143 | } | |
1144 | if (info_verbose) | |
1145 | printf_filtered ("\n"); | |
1146 | if (list->next_memrange > 0 && info_verbose) | |
1147 | printf_filtered ("Collecting memranges: \n"); | |
1148 | for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++) | |
1149 | { | |
1150 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 1151 | sprintf_vma (tmp2, list->list[i].start); |
c906108c | 1152 | if (info_verbose) |
104c1213 JM |
1153 | { |
1154 | printf_filtered ("(%d, %s, %ld)\n", | |
1155 | list->list[i].type, | |
1156 | tmp2, | |
1157 | (long) (list->list[i].end - list->list[i].start)); | |
1158 | } | |
c906108c SS |
1159 | if (count + 27 > MAX_AGENT_EXPR_LEN) |
1160 | { | |
c5aa993b | 1161 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1162 | ndx++; |
1163 | count = 0; | |
1164 | end = temp_buf; | |
1165 | } | |
104c1213 | 1166 | |
d1948716 JB |
1167 | { |
1168 | bfd_signed_vma length = list->list[i].end - list->list[i].start; | |
1169 | ||
1170 | /* The "%X" conversion specifier expects an unsigned argument, | |
f50e79a4 JB |
1171 | so passing -1 (memrange_absolute) to it directly gives you |
1172 | "FFFFFFFF" (or more, depending on sizeof (unsigned)). | |
1173 | Special-case it. */ | |
1174 | if (list->list[i].type == memrange_absolute) | |
d1948716 JB |
1175 | sprintf (end, "M-1,%s,%lX", tmp2, (long) length); |
1176 | else | |
1177 | sprintf (end, "M%X,%s,%lX", list->list[i].type, tmp2, (long) length); | |
1178 | } | |
104c1213 | 1179 | |
c906108c | 1180 | count += strlen (end); |
3ffbc0a5 | 1181 | end = temp_buf + count; |
c906108c SS |
1182 | } |
1183 | ||
1184 | for (i = 0; i < list->next_aexpr_elt; i++) | |
1185 | { | |
1186 | QUIT; /* allow user to bail out with ^C */ | |
1187 | if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN) | |
1188 | { | |
c5aa993b | 1189 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1190 | ndx++; |
1191 | count = 0; | |
1192 | end = temp_buf; | |
1193 | } | |
1194 | sprintf (end, "X%08X,", list->aexpr_list[i]->len); | |
1195 | end += 10; /* 'X' + 8 hex digits + ',' */ | |
1196 | count += 10; | |
1197 | ||
d183932d MS |
1198 | end = mem2hex (list->aexpr_list[i]->buf, |
1199 | end, list->aexpr_list[i]->len); | |
c906108c SS |
1200 | count += 2 * list->aexpr_list[i]->len; |
1201 | } | |
1202 | ||
1203 | if (count != 0) | |
1204 | { | |
c5aa993b | 1205 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1206 | ndx++; |
1207 | count = 0; | |
1208 | end = temp_buf; | |
1209 | } | |
1210 | (*str_list)[ndx] = NULL; | |
1211 | ||
1212 | if (ndx == 0) | |
27e06d3e | 1213 | { |
6c761d9c | 1214 | xfree (str_list); |
27e06d3e MS |
1215 | return NULL; |
1216 | } | |
c906108c SS |
1217 | else |
1218 | return *str_list; | |
1219 | } | |
1220 | ||
a7bdde9e VP |
1221 | |
1222 | static void | |
1223 | encode_actions_1 (struct command_line *action, | |
1224 | struct breakpoint *t, | |
1225 | struct bp_location *tloc, | |
1226 | int frame_reg, | |
1227 | LONGEST frame_offset, | |
1228 | struct collection_list *collect, | |
1229 | struct collection_list *stepping_list) | |
c906108c | 1230 | { |
c5aa993b JM |
1231 | char *action_exp; |
1232 | struct expression *exp = NULL; | |
a7bdde9e | 1233 | struct command_line *actions; |
104c1213 | 1234 | int i; |
f976f6d4 | 1235 | struct value *tempval; |
c906108c SS |
1236 | struct cmd_list_element *cmd; |
1237 | struct agent_expr *aexpr; | |
236f1d4d SS |
1238 | |
1239 | for (; action; action = action->next) | |
c906108c SS |
1240 | { |
1241 | QUIT; /* allow user to bail out with ^C */ | |
a7bdde9e | 1242 | action_exp = action->line; |
104c1213 | 1243 | while (isspace ((int) *action_exp)) |
c906108c SS |
1244 | action_exp++; |
1245 | ||
c906108c SS |
1246 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
1247 | if (cmd == 0) | |
8a3fe4f8 | 1248 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 1249 | |
bbaca940 | 1250 | if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c | 1251 | { |
c5aa993b JM |
1252 | do |
1253 | { /* repeat over a comma-separated list */ | |
1254 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 1255 | while (isspace ((int) *action_exp)) |
c5aa993b | 1256 | action_exp++; |
c906108c | 1257 | |
c5aa993b JM |
1258 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1259 | { | |
a6d9a66e | 1260 | for (i = 0; i < gdbarch_num_regs (t->gdbarch); i++) |
c5aa993b JM |
1261 | add_register (collect, i); |
1262 | action_exp = strchr (action_exp, ','); /* more? */ | |
1263 | } | |
1264 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1265 | { | |
1266 | add_local_symbols (collect, | |
a6d9a66e | 1267 | t->gdbarch, |
9355b391 | 1268 | tloc->address, |
c5aa993b JM |
1269 | frame_reg, |
1270 | frame_offset, | |
1271 | 'A'); | |
1272 | action_exp = strchr (action_exp, ','); /* more? */ | |
1273 | } | |
1274 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1275 | { | |
1276 | add_local_symbols (collect, | |
a6d9a66e | 1277 | t->gdbarch, |
9355b391 | 1278 | tloc->address, |
c5aa993b JM |
1279 | frame_reg, |
1280 | frame_offset, | |
1281 | 'L'); | |
1282 | action_exp = strchr (action_exp, ','); /* more? */ | |
1283 | } | |
1284 | else | |
1285 | { | |
1286 | unsigned long addr, len; | |
1287 | struct cleanup *old_chain = NULL; | |
1288 | struct cleanup *old_chain1 = NULL; | |
1289 | struct agent_reqs areqs; | |
1290 | ||
75ac9d7b | 1291 | exp = parse_exp_1 (&action_exp, |
9355b391 | 1292 | block_for_pc (tloc->address), 1); |
74b7792f | 1293 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 1294 | |
c5aa993b JM |
1295 | switch (exp->elts[0].opcode) |
1296 | { | |
1297 | case OP_REGISTER: | |
67f3407f DJ |
1298 | { |
1299 | const char *name = &exp->elts[2].string; | |
1300 | ||
a6d9a66e | 1301 | i = user_reg_map_name_to_regnum (t->gdbarch, |
029a67e4 | 1302 | name, strlen (name)); |
67f3407f DJ |
1303 | if (i == -1) |
1304 | internal_error (__FILE__, __LINE__, | |
1305 | _("Register $%s not available"), | |
1306 | name); | |
1307 | if (info_verbose) | |
1308 | printf_filtered ("OP_REGISTER: "); | |
1309 | add_register (collect, i); | |
1310 | break; | |
1311 | } | |
c5aa993b JM |
1312 | |
1313 | case UNOP_MEMVAL: | |
1314 | /* safe because we know it's a simple expression */ | |
1315 | tempval = evaluate_expression (exp); | |
42ae5230 | 1316 | addr = value_address (tempval); |
c5aa993b | 1317 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); |
f50e79a4 | 1318 | add_memrange (collect, memrange_absolute, addr, len); |
c5aa993b JM |
1319 | break; |
1320 | ||
1321 | case OP_VAR_VALUE: | |
1322 | collect_symbol (collect, | |
1323 | exp->elts[2].symbol, | |
a6d9a66e | 1324 | t->gdbarch, |
c5aa993b | 1325 | frame_reg, |
0936ad1d | 1326 | frame_offset, |
9355b391 | 1327 | tloc->address); |
c5aa993b JM |
1328 | break; |
1329 | ||
1330 | default: /* full-fledged expression */ | |
9355b391 | 1331 | aexpr = gen_trace_for_expr (tloc->address, exp); |
c5aa993b | 1332 | |
f23d52e0 | 1333 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
c5aa993b JM |
1334 | |
1335 | ax_reqs (aexpr, &areqs); | |
c5aa993b | 1336 | |
fff87407 | 1337 | report_agent_reqs_errors (aexpr, &areqs); |
c5aa993b JM |
1338 | |
1339 | discard_cleanups (old_chain1); | |
1340 | add_aexpr (collect, aexpr); | |
1341 | ||
1342 | /* take care of the registers */ | |
1343 | if (areqs.reg_mask_len > 0) | |
c906108c | 1344 | { |
c5aa993b JM |
1345 | int ndx1; |
1346 | int ndx2; | |
1347 | ||
1348 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) | |
c906108c | 1349 | { |
c5aa993b JM |
1350 | QUIT; /* allow user to bail out with ^C */ |
1351 | if (areqs.reg_mask[ndx1] != 0) | |
1352 | { | |
1353 | /* assume chars have 8 bits */ | |
1354 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
1355 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) | |
1356 | /* it's used -- record it */ | |
d183932d MS |
1357 | add_register (collect, |
1358 | ndx1 * 8 + ndx2); | |
c5aa993b | 1359 | } |
c906108c SS |
1360 | } |
1361 | } | |
c5aa993b JM |
1362 | break; |
1363 | } /* switch */ | |
1364 | do_cleanups (old_chain); | |
1365 | } /* do */ | |
1366 | } | |
1367 | while (action_exp && *action_exp++ == ','); | |
1368 | } /* if */ | |
6da95a67 SS |
1369 | else if (cmd_cfunc_eq (cmd, teval_pseudocommand)) |
1370 | { | |
1371 | do | |
1372 | { /* repeat over a comma-separated list */ | |
1373 | QUIT; /* allow user to bail out with ^C */ | |
1374 | while (isspace ((int) *action_exp)) | |
1375 | action_exp++; | |
1376 | ||
1377 | { | |
1378 | unsigned long addr, len; | |
1379 | struct cleanup *old_chain = NULL; | |
1380 | struct cleanup *old_chain1 = NULL; | |
1381 | struct agent_reqs areqs; | |
1382 | ||
1383 | exp = parse_exp_1 (&action_exp, | |
9355b391 | 1384 | block_for_pc (tloc->address), 1); |
6da95a67 SS |
1385 | old_chain = make_cleanup (free_current_contents, &exp); |
1386 | ||
9355b391 | 1387 | aexpr = gen_eval_for_expr (tloc->address, exp); |
6da95a67 SS |
1388 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
1389 | ||
1390 | ax_reqs (aexpr, &areqs); | |
6da95a67 | 1391 | |
fff87407 | 1392 | report_agent_reqs_errors (aexpr, &areqs); |
6da95a67 SS |
1393 | |
1394 | discard_cleanups (old_chain1); | |
1395 | /* Even though we're not officially collecting, add | |
1396 | to the collect list anyway. */ | |
1397 | add_aexpr (collect, aexpr); | |
1398 | ||
1399 | do_cleanups (old_chain); | |
1400 | } /* do */ | |
1401 | } | |
1402 | while (action_exp && *action_exp++ == ','); | |
1403 | } /* if */ | |
bbaca940 | 1404 | else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 1405 | { |
a7bdde9e VP |
1406 | /* We check against nested while-stepping when setting |
1407 | breakpoint action, so no way to run into nested | |
1408 | here. */ | |
1409 | gdb_assert (stepping_list); | |
1410 | ||
1411 | encode_actions_1 (action->body_list[0], t, tloc, frame_reg, frame_offset, | |
1412 | stepping_list, NULL); | |
c906108c | 1413 | } |
a7bdde9e VP |
1414 | else |
1415 | error (_("Invalid tracepoint command '%s'"), action->line); | |
1416 | } /* for */ | |
1417 | } | |
1418 | ||
1419 | /* Render all actions into gdb protocol. */ | |
1420 | /*static*/ void | |
1421 | encode_actions (struct breakpoint *t, struct bp_location *tloc, | |
1422 | char ***tdp_actions, char ***stepping_actions) | |
1423 | { | |
1424 | static char tdp_buff[2048], step_buff[2048]; | |
1425 | char *default_collect_line = NULL; | |
1426 | struct command_line *actions; | |
1427 | struct command_line *default_collect_action = NULL; | |
1428 | int frame_reg; | |
1429 | LONGEST frame_offset; | |
1430 | struct cleanup *back_to; | |
1431 | ||
1432 | back_to = make_cleanup (null_cleanup, NULL); | |
1433 | ||
1434 | clear_collection_list (&tracepoint_list); | |
1435 | clear_collection_list (&stepping_list); | |
1436 | ||
1437 | *tdp_actions = NULL; | |
1438 | *stepping_actions = NULL; | |
1439 | ||
1440 | gdbarch_virtual_frame_pointer (t->gdbarch, | |
1441 | t->loc->address, &frame_reg, &frame_offset); | |
1442 | ||
5cea2a26 | 1443 | actions = breakpoint_commands (t); |
a7bdde9e VP |
1444 | |
1445 | /* If there are default expressions to collect, make up a collect | |
1446 | action and prepend to the action list to encode. Note that since | |
1447 | validation is per-tracepoint (local var "xyz" might be valid for | |
1448 | one tracepoint and not another, etc), we make up the action on | |
1449 | the fly, and don't cache it. */ | |
1450 | if (*default_collect) | |
1451 | { | |
1452 | char *line; | |
a7bdde9e VP |
1453 | |
1454 | default_collect_line = xstrprintf ("collect %s", default_collect); | |
1455 | make_cleanup (xfree, default_collect_line); | |
1456 | ||
1457 | line = default_collect_line; | |
fff87407 SS |
1458 | validate_actionline (&line, t); |
1459 | ||
1460 | default_collect_action = xmalloc (sizeof (struct command_line)); | |
1461 | make_cleanup (xfree, default_collect_action); | |
5cea2a26 | 1462 | default_collect_action->next = actions; |
fff87407 SS |
1463 | default_collect_action->line = line; |
1464 | actions = default_collect_action; | |
a7bdde9e VP |
1465 | } |
1466 | encode_actions_1 (actions, t, tloc, frame_reg, frame_offset, | |
1467 | &tracepoint_list, &stepping_list); | |
1468 | ||
c5aa993b JM |
1469 | memrange_sortmerge (&tracepoint_list); |
1470 | memrange_sortmerge (&stepping_list); | |
c906108c | 1471 | |
a7bdde9e | 1472 | *tdp_actions = stringify_collection_list (&tracepoint_list, |
d183932d | 1473 | tdp_buff); |
a7bdde9e | 1474 | *stepping_actions = stringify_collection_list (&stepping_list, |
d183932d | 1475 | step_buff); |
236f1d4d | 1476 | |
a7bdde9e | 1477 | do_cleanups (back_to); |
c906108c SS |
1478 | } |
1479 | ||
1480 | static void | |
fba45db2 | 1481 | add_aexpr (struct collection_list *collect, struct agent_expr *aexpr) |
c906108c SS |
1482 | { |
1483 | if (collect->next_aexpr_elt >= collect->aexpr_listsize) | |
1484 | { | |
1485 | collect->aexpr_list = | |
1486 | xrealloc (collect->aexpr_list, | |
c5aa993b | 1487 | 2 * collect->aexpr_listsize * sizeof (struct agent_expr *)); |
c906108c SS |
1488 | collect->aexpr_listsize *= 2; |
1489 | } | |
1490 | collect->aexpr_list[collect->next_aexpr_elt] = aexpr; | |
1491 | collect->next_aexpr_elt++; | |
1492 | } | |
1493 | ||
c5aa993b | 1494 | |
f224b49d VP |
1495 | void |
1496 | start_tracing (void) | |
d183932d | 1497 | { |
f61e138d | 1498 | char buf[2048]; |
1042e4c0 SS |
1499 | VEC(breakpoint_p) *tp_vec = NULL; |
1500 | int ix; | |
1501 | struct breakpoint *t; | |
f61e138d | 1502 | struct trace_state_variable *tsv; |
76a2b958 | 1503 | int any_enabled = 0; |
35b1e5cc SS |
1504 | |
1505 | tp_vec = all_tracepoints (); | |
76a2b958 SS |
1506 | |
1507 | /* No point in tracing without any tracepoints... */ | |
1508 | if (VEC_length (breakpoint_p, tp_vec) == 0) | |
1509 | { | |
1510 | VEC_free (breakpoint_p, tp_vec); | |
1511 | error (_("No tracepoints defined, not starting trace")); | |
1512 | } | |
1513 | ||
1514 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
1515 | { | |
1516 | if (t->enable_state == bp_enabled) | |
1517 | { | |
1518 | any_enabled = 1; | |
1519 | break; | |
1520 | } | |
1521 | } | |
1522 | ||
1523 | /* No point in tracing with only disabled tracepoints. */ | |
1524 | if (!any_enabled) | |
1525 | { | |
1526 | VEC_free (breakpoint_p, tp_vec); | |
1527 | error (_("No tracepoints enabled, not starting trace")); | |
1528 | } | |
1529 | ||
1530 | target_trace_init (); | |
1531 | ||
35b1e5cc | 1532 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) |
7a697b8d | 1533 | { |
35b1e5cc SS |
1534 | t->number_on_target = 0; |
1535 | target_download_tracepoint (t); | |
1536 | t->number_on_target = t->number; | |
7a697b8d | 1537 | } |
35b1e5cc | 1538 | VEC_free (breakpoint_p, tp_vec); |
76a2b958 | 1539 | |
00bf0b85 | 1540 | /* Send down all the trace state variables too. */ |
35b1e5cc | 1541 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) |
782b2b07 | 1542 | { |
00bf0b85 | 1543 | target_download_trace_state_variable (tsv); |
782b2b07 | 1544 | } |
35b1e5cc SS |
1545 | |
1546 | /* Tell target to treat text-like sections as transparent. */ | |
1547 | target_trace_set_readonly_regions (); | |
4daf5ac0 SS |
1548 | /* Set some mode flags. */ |
1549 | target_set_disconnected_tracing (disconnected_tracing); | |
1550 | target_set_circular_trace_buffer (circular_trace_buffer); | |
1042e4c0 | 1551 | |
35b1e5cc SS |
1552 | /* Now insert traps and begin collecting data. */ |
1553 | target_trace_start (); | |
1042e4c0 | 1554 | |
35b1e5cc SS |
1555 | /* Reset our local state. */ |
1556 | set_traceframe_num (-1); | |
1557 | set_tracepoint_num (-1); | |
1558 | set_traceframe_context (NULL); | |
00bf0b85 | 1559 | current_trace_status()->running = 1; |
1042e4c0 SS |
1560 | } |
1561 | ||
f224b49d VP |
1562 | /* tstart command: |
1563 | ||
1564 | Tell target to clear any previous trace experiment. | |
1565 | Walk the list of tracepoints, and send them (and their actions) | |
1566 | to the target. If no errors, | |
1567 | Tell target to start a new trace experiment. */ | |
1568 | ||
1569 | static void | |
1570 | trace_start_command (char *args, int from_tty) | |
1571 | { | |
1572 | dont_repeat (); /* Like "run", dangerous to repeat accidentally. */ | |
1573 | ||
615bcdef SS |
1574 | if (current_trace_status ()->running) |
1575 | { | |
1576 | if (from_tty | |
1577 | && !query (_("A trace is running already. Start a new run? "))) | |
1578 | error (_("New trace run not started.")); | |
1579 | } | |
1580 | ||
f224b49d VP |
1581 | start_tracing (); |
1582 | } | |
1583 | ||
c906108c SS |
1584 | /* tstop command */ |
1585 | static void | |
fba45db2 | 1586 | trace_stop_command (char *args, int from_tty) |
d183932d | 1587 | { |
615bcdef SS |
1588 | if (!current_trace_status ()->running) |
1589 | error (_("Trace is not running.")); | |
1590 | ||
35b1e5cc | 1591 | stop_tracing (); |
c906108c SS |
1592 | } |
1593 | ||
d5551862 | 1594 | void |
f224b49d | 1595 | stop_tracing (void) |
d5551862 | 1596 | { |
35b1e5cc | 1597 | target_trace_stop (); |
00bf0b85 SS |
1598 | /* should change in response to reply? */ |
1599 | current_trace_status ()->running = 0; | |
d5551862 SS |
1600 | } |
1601 | ||
c906108c SS |
1602 | /* tstatus command */ |
1603 | static void | |
fba45db2 | 1604 | trace_status_command (char *args, int from_tty) |
d183932d | 1605 | { |
00bf0b85 SS |
1606 | struct trace_status *ts = current_trace_status (); |
1607 | int status; | |
35b1e5cc | 1608 | |
00bf0b85 SS |
1609 | status = target_get_trace_status (ts); |
1610 | ||
1611 | if (status == -1) | |
1612 | { | |
1613 | if (ts->from_file) | |
1614 | printf_filtered (_("Using a trace file.\n")); | |
1615 | else | |
1616 | { | |
1617 | printf_filtered (_("Trace can not be run on this target.\n")); | |
1618 | return; | |
1619 | } | |
1620 | } | |
1621 | ||
1622 | if (!ts->running_known) | |
1623 | { | |
1624 | printf_filtered (_("Run/stop status is unknown.\n")); | |
1625 | } | |
1626 | else if (ts->running) | |
c906108c | 1627 | { |
35b1e5cc SS |
1628 | printf_filtered (_("Trace is running on the target.\n")); |
1629 | if (disconnected_tracing) | |
1630 | printf_filtered (_("Trace will continue if GDB disconnects.\n")); | |
d3513012 | 1631 | else |
35b1e5cc | 1632 | printf_filtered (_("Trace will stop if GDB disconnects.\n")); |
c906108c SS |
1633 | } |
1634 | else | |
00bf0b85 SS |
1635 | { |
1636 | switch (ts->stop_reason) | |
1637 | { | |
1638 | case trace_never_run: | |
1639 | printf_filtered (_("No trace has been run on the target.\n")); | |
1640 | break; | |
1641 | case tstop_command: | |
1642 | printf_filtered (_("Trace stopped by a tstop command.\n")); | |
1643 | break; | |
1644 | case trace_buffer_full: | |
1645 | printf_filtered (_("Trace stopped because the buffer was full.\n")); | |
1646 | break; | |
1647 | case trace_disconnected: | |
1648 | printf_filtered (_("Trace stopped because of disconnection.\n")); | |
1649 | break; | |
1650 | case tracepoint_passcount: | |
00bf0b85 SS |
1651 | printf_filtered (_("Trace stopped by tracepoint %d.\n"), |
1652 | ts->stopping_tracepoint); | |
1653 | break; | |
6c28cbf2 SS |
1654 | case tracepoint_error: |
1655 | if (ts->stopping_tracepoint) | |
1656 | printf_filtered (_("Trace stopped by an error (%s, tracepoint %d).\n"), | |
1657 | ts->error_desc, ts->stopping_tracepoint); | |
1658 | else | |
1659 | printf_filtered (_("Trace stopped by an error (%s).\n"), | |
1660 | ts->error_desc); | |
1661 | break; | |
00bf0b85 SS |
1662 | case trace_stop_reason_unknown: |
1663 | printf_filtered (_("Trace stopped for an unknown reason.\n")); | |
1664 | break; | |
1665 | default: | |
1666 | printf_filtered (_("Trace stopped for some other reason (%d).\n"), | |
1667 | ts->stop_reason); | |
1668 | break; | |
1669 | } | |
1670 | } | |
1671 | ||
4daf5ac0 SS |
1672 | if (ts->traceframes_created >= 0 |
1673 | && ts->traceframe_count != ts->traceframes_created) | |
1674 | { | |
1675 | printf_filtered (_("Buffer contains %d trace frames (of %d created total).\n"), | |
1676 | ts->traceframe_count, ts->traceframes_created); | |
1677 | } | |
1678 | else if (ts->traceframe_count >= 0) | |
00bf0b85 SS |
1679 | { |
1680 | printf_filtered (_("Collected %d trace frames.\n"), | |
1681 | ts->traceframe_count); | |
1682 | } | |
1683 | ||
4daf5ac0 | 1684 | if (ts->buffer_free >= 0) |
00bf0b85 | 1685 | { |
4daf5ac0 SS |
1686 | if (ts->buffer_size >= 0) |
1687 | { | |
1688 | printf_filtered (_("Trace buffer has %d bytes of %d bytes free"), | |
1689 | ts->buffer_free, ts->buffer_size); | |
1690 | if (ts->buffer_size > 0) | |
1691 | printf_filtered (_(" (%d%% full)"), | |
1692 | ((int) ((((long long) (ts->buffer_size | |
1693 | - ts->buffer_free)) * 100) | |
1694 | / ts->buffer_size))); | |
1695 | printf_filtered (_(".\n")); | |
1696 | } | |
1697 | else | |
1698 | printf_filtered (_("Trace buffer has %d bytes free.\n"), | |
1699 | ts->buffer_free); | |
00bf0b85 | 1700 | } |
35b1e5cc | 1701 | |
00bf0b85 | 1702 | /* Now report on what we're doing with tfind. */ |
35b1e5cc SS |
1703 | if (traceframe_number >= 0) |
1704 | printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"), | |
1705 | traceframe_number, tracepoint_number); | |
1706 | else | |
1707 | printf_filtered (_("Not looking at any trace frame.\n")); | |
c906108c SS |
1708 | } |
1709 | ||
f224b49d VP |
1710 | /* Report the trace status to uiout, in a way suitable for MI, and not |
1711 | suitable for CLI. If ON_STOP is true, suppress a few fields that | |
1712 | are not meaningful in the -trace-stop response. | |
1713 | ||
1714 | The implementation is essentially parallel to trace_status_command, but | |
1715 | merging them will result in unreadable code. */ | |
1716 | void | |
1717 | trace_status_mi (int on_stop) | |
1718 | { | |
1719 | struct trace_status *ts = current_trace_status (); | |
1720 | int status; | |
1721 | char *string_status; | |
1722 | ||
1723 | status = target_get_trace_status (ts); | |
1724 | ||
1725 | if (status == -1 && !ts->from_file) | |
1726 | { | |
1727 | ui_out_field_string (uiout, "supported", "0"); | |
1728 | return; | |
1729 | } | |
1730 | ||
1731 | if (ts->from_file) | |
1732 | ui_out_field_string (uiout, "supported", "file"); | |
1733 | else if (!on_stop) | |
1734 | ui_out_field_string (uiout, "supported", "1"); | |
1735 | ||
1736 | gdb_assert (ts->running_known); | |
1737 | ||
1738 | if (ts->running) | |
1739 | { | |
1740 | ui_out_field_string (uiout, "running", "1"); | |
1741 | ||
1742 | /* Unlike CLI, do not show the state of 'disconnected-tracing' variable. | |
1743 | Given that the frontend gets the status either on -trace-stop, or from | |
1744 | -trace-status after re-connection, it does not seem like this | |
1745 | information is necessary for anything. It is not necessary for either | |
1746 | figuring the vital state of the target nor for navigation of trace | |
1747 | frames. If the frontend wants to show the current state is some | |
1748 | configure dialog, it can request the value when such dialog is | |
1749 | invoked by the user. */ | |
1750 | } | |
1751 | else | |
1752 | { | |
1753 | char *stop_reason = NULL; | |
1754 | int stopping_tracepoint = -1; | |
1755 | ||
1756 | if (!on_stop) | |
1757 | ui_out_field_string (uiout, "running", "0"); | |
1758 | ||
1759 | if (ts->stop_reason != trace_stop_reason_unknown) | |
1760 | { | |
1761 | switch (ts->stop_reason) | |
1762 | { | |
1763 | case tstop_command: | |
1764 | stop_reason = "request"; | |
1765 | break; | |
1766 | case trace_buffer_full: | |
1767 | stop_reason = "overflow"; | |
1768 | break; | |
1769 | case trace_disconnected: | |
1770 | stop_reason = "disconnection"; | |
1771 | break; | |
1772 | case tracepoint_passcount: | |
1773 | stop_reason = "passcount"; | |
1774 | stopping_tracepoint = ts->stopping_tracepoint; | |
1775 | break; | |
6c28cbf2 SS |
1776 | case tracepoint_error: |
1777 | stop_reason = "error"; | |
1778 | stopping_tracepoint = ts->stopping_tracepoint; | |
1779 | break; | |
f224b49d VP |
1780 | } |
1781 | ||
1782 | if (stop_reason) | |
1783 | { | |
1784 | ui_out_field_string (uiout, "stop-reason", stop_reason); | |
1785 | if (stopping_tracepoint != -1) | |
1786 | ui_out_field_int (uiout, "stopping-tracepoint", | |
1787 | stopping_tracepoint); | |
6c28cbf2 SS |
1788 | if (ts->stop_reason == tracepoint_error) |
1789 | ui_out_field_string (uiout, "error-description", | |
1790 | ts->error_desc); | |
f224b49d VP |
1791 | } |
1792 | } | |
1793 | } | |
1794 | ||
1795 | ||
1796 | if ((int) ts->traceframe_count != -1) | |
1797 | ui_out_field_int (uiout, "frames", ts->traceframe_count); | |
1798 | if ((int) ts->buffer_size != -1) | |
1799 | ui_out_field_int (uiout, "buffer-size", (int) ts->buffer_size); | |
1800 | if ((int) ts->buffer_free != -1) | |
1801 | ui_out_field_int (uiout, "buffer-free", (int) ts->buffer_free); | |
1802 | } | |
1803 | ||
1804 | ||
d5551862 SS |
1805 | void |
1806 | disconnect_or_stop_tracing (int from_tty) | |
1807 | { | |
00bf0b85 SS |
1808 | /* It can happen that the target that was tracing went away on its |
1809 | own, and we didn't notice. Get a status update, and if the | |
1810 | current target doesn't even do tracing, then assume it's not | |
1811 | running anymore. */ | |
1812 | if (target_get_trace_status (current_trace_status ()) < 0) | |
1813 | current_trace_status ()->running = 0; | |
1814 | ||
1815 | if (current_trace_status ()->running && from_tty) | |
d5551862 SS |
1816 | { |
1817 | int cont = query (_("Trace is running. Continue tracing after detach? ")); | |
1818 | /* Note that we send the query result without affecting the | |
1819 | user's setting of disconnected_tracing, so that the answer is | |
1820 | a one-time-only. */ | |
1821 | send_disconnected_tracing_value (cont); | |
1822 | ||
1823 | /* Also ensure that we do the equivalent of a tstop command if | |
1824 | tracing is not to continue after the detach. */ | |
1825 | if (!cont) | |
1826 | stop_tracing (); | |
1827 | } | |
8b9b7ef8 SS |
1828 | |
1829 | /* Also we want to be out of tfind mode, otherwise things can get | |
1830 | confusing upon reconnection. Just use these calls instead of | |
1831 | full tfind_1 behavior because we're in the middle of detaching, | |
1832 | and there's no point to updating current stack frame etc. */ | |
1833 | set_traceframe_number (-1); | |
1834 | set_traceframe_context (NULL); | |
d5551862 SS |
1835 | } |
1836 | ||
d183932d | 1837 | /* Worker function for the various flavors of the tfind command. */ |
f197e0f1 VP |
1838 | void |
1839 | tfind_1 (enum trace_find_type type, int num, | |
1840 | ULONGEST addr1, ULONGEST addr2, | |
1841 | int from_tty) | |
c906108c SS |
1842 | { |
1843 | int target_frameno = -1, target_tracept = -1; | |
fb14de7b | 1844 | struct frame_id old_frame_id; |
c906108c | 1845 | char *reply; |
d5551862 | 1846 | struct breakpoint *tp; |
c906108c | 1847 | |
fb14de7b | 1848 | old_frame_id = get_frame_id (get_current_frame ()); |
c906108c | 1849 | |
35b1e5cc SS |
1850 | target_frameno = target_trace_find (type, num, addr1, addr2, |
1851 | &target_tracept); | |
1852 | ||
1853 | if (type == tfind_number | |
1854 | && num == -1 | |
1855 | && target_frameno == -1) | |
1856 | { | |
1857 | /* We told the target to get out of tfind mode, and it did. */ | |
1858 | } | |
1859 | else if (target_frameno == -1) | |
1860 | { | |
1861 | /* A request for a non-existant trace frame has failed. | |
1862 | Our response will be different, depending on FROM_TTY: | |
1863 | ||
1864 | If FROM_TTY is true, meaning that this command was | |
1865 | typed interactively by the user, then give an error | |
1866 | and DO NOT change the state of traceframe_number etc. | |
1867 | ||
1868 | However if FROM_TTY is false, meaning that we're either | |
1869 | in a script, a loop, or a user-defined command, then | |
1870 | DON'T give an error, but DO change the state of | |
1871 | traceframe_number etc. to invalid. | |
1872 | ||
1873 | The rationalle is that if you typed the command, you | |
1874 | might just have committed a typo or something, and you'd | |
1875 | like to NOT lose your current debugging state. However | |
1876 | if you're in a user-defined command or especially in a | |
1877 | loop, then you need a way to detect that the command | |
1878 | failed WITHOUT aborting. This allows you to write | |
1879 | scripts that search thru the trace buffer until the end, | |
1880 | and then continue on to do something else. */ | |
1881 | ||
1882 | if (from_tty) | |
1883 | error (_("Target failed to find requested trace frame.")); | |
1884 | else | |
1885 | { | |
1886 | if (info_verbose) | |
1887 | printf_filtered ("End of trace buffer.\n"); | |
1888 | #if 0 /* dubious now? */ | |
1889 | /* The following will not recurse, since it's | |
1890 | special-cased. */ | |
1891 | trace_find_command ("-1", from_tty); | |
1892 | #endif | |
1893 | } | |
1894 | } | |
1895 | ||
d5551862 SS |
1896 | tp = get_tracepoint_by_number_on_target (target_tracept); |
1897 | ||
35f196d9 | 1898 | reinit_frame_cache (); |
c906108c | 1899 | registers_changed (); |
2f4d8875 | 1900 | target_dcache_invalidate (); |
c906108c | 1901 | set_traceframe_num (target_frameno); |
d5551862 | 1902 | set_tracepoint_num (tp ? tp->number : target_tracept); |
c906108c | 1903 | if (target_frameno == -1) |
fb14de7b | 1904 | set_traceframe_context (NULL); |
c906108c | 1905 | else |
fb14de7b | 1906 | set_traceframe_context (get_current_frame ()); |
c906108c | 1907 | |
f197e0f1 VP |
1908 | if (traceframe_number >= 0) |
1909 | { | |
1910 | /* Use different branches for MI and CLI to make CLI messages | |
1911 | i18n-eable. */ | |
1912 | if (ui_out_is_mi_like_p (uiout)) | |
1913 | { | |
1914 | ui_out_field_string (uiout, "found", "1"); | |
1915 | ui_out_field_int (uiout, "tracepoint", tracepoint_number); | |
1916 | ui_out_field_int (uiout, "traceframe", traceframe_number); | |
1917 | } | |
1918 | else | |
1919 | { | |
1920 | printf_unfiltered (_("Found trace frame %d, tracepoint %d\n"), | |
1921 | traceframe_number, tracepoint_number); | |
1922 | } | |
1923 | } | |
1924 | else | |
1925 | { | |
1926 | if (ui_out_is_mi_like_p (uiout)) | |
1927 | ui_out_field_string (uiout, "found", "0"); | |
1928 | else | |
1929 | printf_unfiltered (_("No trace frame found")); | |
1930 | } | |
1931 | ||
00bf0b85 SS |
1932 | /* If we're in nonstop mode and getting out of looking at trace |
1933 | frames, there won't be any current frame to go back to and | |
1934 | display. */ | |
1935 | if (from_tty | |
1936 | && (has_stack_frames () || traceframe_number >= 0)) | |
c906108c | 1937 | { |
0faf0076 | 1938 | enum print_what print_what; |
c906108c SS |
1939 | |
1940 | /* NOTE: in immitation of the step command, try to determine | |
d183932d MS |
1941 | whether we have made a transition from one function to |
1942 | another. If so, we'll print the "stack frame" (ie. the new | |
1943 | function and it's arguments) -- otherwise we'll just show the | |
fb14de7b UW |
1944 | new source line. */ |
1945 | ||
1946 | if (frame_id_eq (old_frame_id, | |
1947 | get_frame_id (get_current_frame ()))) | |
0faf0076 | 1948 | print_what = SRC_LINE; |
c906108c | 1949 | else |
0faf0076 | 1950 | print_what = SRC_AND_LOC; |
c906108c | 1951 | |
b04f3ab4 | 1952 | print_stack_frame (get_selected_frame (NULL), 1, print_what); |
c906108c SS |
1953 | do_displays (); |
1954 | } | |
1955 | } | |
1956 | ||
1957 | /* trace_find_command takes a trace frame number n, | |
1958 | sends "QTFrame:<n>" to the target, | |
1959 | and accepts a reply that may contain several optional pieces | |
1960 | of information: a frame number, a tracepoint number, and an | |
1961 | indication of whether this is a trap frame or a stepping frame. | |
1962 | ||
1963 | The minimal response is just "OK" (which indicates that the | |
1964 | target does not give us a frame number or a tracepoint number). | |
1965 | Instead of that, the target may send us a string containing | |
1966 | any combination of: | |
c5aa993b JM |
1967 | F<hexnum> (gives the selected frame number) |
1968 | T<hexnum> (gives the selected tracepoint number) | |
1969 | */ | |
c906108c SS |
1970 | |
1971 | /* tfind command */ | |
1972 | static void | |
fba45db2 | 1973 | trace_find_command (char *args, int from_tty) |
d183932d | 1974 | { /* this should only be called with a numeric argument */ |
c906108c | 1975 | int frameno = -1; |
c906108c | 1976 | |
00bf0b85 | 1977 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc SS |
1978 | error ("May not look at trace frames while trace is running."); |
1979 | ||
1980 | if (args == 0 || *args == 0) | |
1981 | { /* TFIND with no args means find NEXT trace frame. */ | |
1982 | if (traceframe_number == -1) | |
1983 | frameno = 0; /* "next" is first one */ | |
1984 | else | |
1985 | frameno = traceframe_number + 1; | |
1986 | } | |
1987 | else if (0 == strcmp (args, "-")) | |
c906108c | 1988 | { |
35b1e5cc SS |
1989 | if (traceframe_number == -1) |
1990 | error (_("not debugging trace buffer")); | |
1991 | else if (from_tty && traceframe_number == 0) | |
1992 | error (_("already at start of trace buffer")); | |
1993 | ||
1994 | frameno = traceframe_number - 1; | |
1995 | } | |
1996 | /* A hack to work around eval's need for fp to have been collected. */ | |
1997 | else if (0 == strcmp (args, "-1")) | |
1998 | frameno = -1; | |
1999 | else | |
2000 | frameno = parse_and_eval_long (args); | |
c906108c | 2001 | |
35b1e5cc SS |
2002 | if (frameno < -1) |
2003 | error (_("invalid input (%d is less than zero)"), frameno); | |
c906108c | 2004 | |
f197e0f1 | 2005 | tfind_1 (tfind_number, frameno, 0, 0, from_tty); |
c906108c SS |
2006 | } |
2007 | ||
2008 | /* tfind end */ | |
2009 | static void | |
fba45db2 | 2010 | trace_find_end_command (char *args, int from_tty) |
c906108c SS |
2011 | { |
2012 | trace_find_command ("-1", from_tty); | |
2013 | } | |
2014 | ||
2015 | /* tfind none */ | |
2016 | static void | |
fba45db2 | 2017 | trace_find_none_command (char *args, int from_tty) |
c906108c SS |
2018 | { |
2019 | trace_find_command ("-1", from_tty); | |
2020 | } | |
2021 | ||
2022 | /* tfind start */ | |
2023 | static void | |
fba45db2 | 2024 | trace_find_start_command (char *args, int from_tty) |
c906108c SS |
2025 | { |
2026 | trace_find_command ("0", from_tty); | |
2027 | } | |
2028 | ||
2029 | /* tfind pc command */ | |
2030 | static void | |
fba45db2 | 2031 | trace_find_pc_command (char *args, int from_tty) |
d183932d | 2032 | { |
c906108c | 2033 | CORE_ADDR pc; |
104c1213 | 2034 | char tmp[40]; |
c906108c | 2035 | |
00bf0b85 | 2036 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 2037 | error ("May not look at trace frames while trace is running."); |
c906108c | 2038 | |
35b1e5cc SS |
2039 | if (args == 0 || *args == 0) |
2040 | pc = regcache_read_pc (get_current_regcache ()); | |
c906108c | 2041 | else |
35b1e5cc SS |
2042 | pc = parse_and_eval_address (args); |
2043 | ||
f197e0f1 | 2044 | tfind_1 (tfind_pc, 0, pc, 0, from_tty); |
c906108c SS |
2045 | } |
2046 | ||
2047 | /* tfind tracepoint command */ | |
2048 | static void | |
fba45db2 | 2049 | trace_find_tracepoint_command (char *args, int from_tty) |
d183932d | 2050 | { |
c906108c | 2051 | int tdp; |
d5551862 | 2052 | struct breakpoint *tp; |
c906108c | 2053 | |
00bf0b85 | 2054 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 2055 | error ("May not look at trace frames while trace is running."); |
383e5f85 | 2056 | |
35b1e5cc SS |
2057 | if (args == 0 || *args == 0) |
2058 | { | |
2059 | if (tracepoint_number == -1) | |
2060 | error (_("No current tracepoint -- please supply an argument.")); | |
c906108c | 2061 | else |
35b1e5cc | 2062 | tdp = tracepoint_number; /* default is current TDP */ |
c906108c SS |
2063 | } |
2064 | else | |
35b1e5cc SS |
2065 | tdp = parse_and_eval_long (args); |
2066 | ||
2067 | /* If we have the tracepoint on hand, use the number that the | |
2068 | target knows about (which may be different if we disconnected | |
2069 | and reconnected). */ | |
2070 | tp = get_tracepoint (tdp); | |
2071 | if (tp) | |
2072 | tdp = tp->number_on_target; | |
2073 | ||
f197e0f1 | 2074 | tfind_1 (tfind_tp, tdp, 0, 0, from_tty); |
c906108c SS |
2075 | } |
2076 | ||
2077 | /* TFIND LINE command: | |
c5aa993b | 2078 | |
c906108c | 2079 | This command will take a sourceline for argument, just like BREAK |
d183932d | 2080 | or TRACE (ie. anything that "decode_line_1" can handle). |
c5aa993b | 2081 | |
c906108c SS |
2082 | With no argument, this command will find the next trace frame |
2083 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
2084 | ||
2085 | static void | |
fba45db2 | 2086 | trace_find_line_command (char *args, int from_tty) |
d183932d | 2087 | { |
c906108c SS |
2088 | static CORE_ADDR start_pc, end_pc; |
2089 | struct symtabs_and_lines sals; | |
2090 | struct symtab_and_line sal; | |
c906108c | 2091 | struct cleanup *old_chain; |
104c1213 | 2092 | char startpc_str[40], endpc_str[40]; |
c906108c | 2093 | |
00bf0b85 | 2094 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 2095 | error ("May not look at trace frames while trace is running."); |
5af949e3 | 2096 | |
35b1e5cc SS |
2097 | if (args == 0 || *args == 0) |
2098 | { | |
2099 | sal = find_pc_line (get_frame_pc (get_current_frame ()), 0); | |
2100 | sals.nelts = 1; | |
2101 | sals.sals = (struct symtab_and_line *) | |
2102 | xmalloc (sizeof (struct symtab_and_line)); | |
2103 | sals.sals[0] = sal; | |
2104 | } | |
2105 | else | |
42e08e69 | 2106 | { |
35b1e5cc SS |
2107 | sals = decode_line_spec (args, 1); |
2108 | sal = sals.sals[0]; | |
2109 | } | |
2110 | ||
2111 | old_chain = make_cleanup (xfree, sals.sals); | |
2112 | if (sal.symtab == 0) | |
42e08e69 SS |
2113 | error (_("No line number information available.")); |
2114 | ||
2115 | if (sal.line > 0 && find_line_pc_range (sal, &start_pc, &end_pc)) | |
35b1e5cc SS |
2116 | { |
2117 | if (start_pc == end_pc) | |
2118 | { | |
2119 | printf_filtered ("Line %d of \"%s\"", | |
2120 | sal.line, sal.symtab->filename); | |
2121 | wrap_here (" "); | |
2122 | printf_filtered (" is at address "); | |
2123 | print_address (get_current_arch (), start_pc, gdb_stdout); | |
2124 | wrap_here (" "); | |
2125 | printf_filtered (" but contains no code.\n"); | |
2126 | sal = find_pc_line (start_pc, 0); | |
2127 | if (sal.line > 0 | |
2128 | && find_line_pc_range (sal, &start_pc, &end_pc) | |
2129 | && start_pc != end_pc) | |
2130 | printf_filtered ("Attempting to find line %d instead.\n", | |
2131 | sal.line); | |
2132 | else | |
2133 | error (_("Cannot find a good line.")); | |
2134 | } | |
2135 | } | |
2136 | else | |
2137 | /* Is there any case in which we get here, and have an address | |
2138 | which the user would want to see? If we have debugging | |
2139 | symbols and no line numbers? */ | |
2140 | error (_("Line number %d is out of range for \"%s\"."), | |
2141 | sal.line, sal.symtab->filename); | |
2142 | ||
2143 | /* Find within range of stated line. */ | |
2144 | if (args && *args) | |
f197e0f1 | 2145 | tfind_1 (tfind_range, 0, start_pc, end_pc - 1, from_tty); |
c906108c | 2146 | else |
f197e0f1 | 2147 | tfind_1 (tfind_outside, 0, start_pc, end_pc - 1, from_tty); |
35b1e5cc | 2148 | do_cleanups (old_chain); |
c906108c SS |
2149 | } |
2150 | ||
2151 | /* tfind range command */ | |
2152 | static void | |
fba45db2 | 2153 | trace_find_range_command (char *args, int from_tty) |
104c1213 | 2154 | { |
c906108c | 2155 | static CORE_ADDR start, stop; |
104c1213 | 2156 | char start_str[40], stop_str[40]; |
c906108c SS |
2157 | char *tmp; |
2158 | ||
00bf0b85 | 2159 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 2160 | error ("May not look at trace frames while trace is running."); |
c906108c | 2161 | |
35b1e5cc SS |
2162 | if (args == 0 || *args == 0) |
2163 | { /* XXX FIXME: what should default behavior be? */ | |
2164 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); | |
2165 | return; | |
2166 | } | |
c906108c | 2167 | |
35b1e5cc SS |
2168 | if (0 != (tmp = strchr (args, ','))) |
2169 | { | |
2170 | *tmp++ = '\0'; /* terminate start address */ | |
2171 | while (isspace ((int) *tmp)) | |
2172 | tmp++; | |
2173 | start = parse_and_eval_address (args); | |
2174 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
2175 | } |
2176 | else | |
35b1e5cc SS |
2177 | { /* no explicit end address? */ |
2178 | start = parse_and_eval_address (args); | |
2179 | stop = start + 1; /* ??? */ | |
2180 | } | |
2181 | ||
f197e0f1 | 2182 | tfind_1 (tfind_range, 0, start, stop, from_tty); |
c906108c SS |
2183 | } |
2184 | ||
2185 | /* tfind outside command */ | |
2186 | static void | |
fba45db2 | 2187 | trace_find_outside_command (char *args, int from_tty) |
104c1213 | 2188 | { |
c906108c | 2189 | CORE_ADDR start, stop; |
104c1213 | 2190 | char start_str[40], stop_str[40]; |
c906108c SS |
2191 | char *tmp; |
2192 | ||
00bf0b85 | 2193 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 2194 | error ("May not look at trace frames while trace is running."); |
c906108c | 2195 | |
35b1e5cc SS |
2196 | if (args == 0 || *args == 0) |
2197 | { /* XXX FIXME: what should default behavior be? */ | |
2198 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); | |
2199 | return; | |
2200 | } | |
c906108c | 2201 | |
35b1e5cc SS |
2202 | if (0 != (tmp = strchr (args, ','))) |
2203 | { | |
2204 | *tmp++ = '\0'; /* terminate start address */ | |
2205 | while (isspace ((int) *tmp)) | |
2206 | tmp++; | |
2207 | start = parse_and_eval_address (args); | |
2208 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
2209 | } |
2210 | else | |
35b1e5cc SS |
2211 | { /* no explicit end address? */ |
2212 | start = parse_and_eval_address (args); | |
2213 | stop = start + 1; /* ??? */ | |
2214 | } | |
2215 | ||
f197e0f1 | 2216 | tfind_1 (tfind_outside, 0, start, stop, from_tty); |
c906108c SS |
2217 | } |
2218 | ||
c906108c SS |
2219 | /* info scope command: list the locals for a scope. */ |
2220 | static void | |
fba45db2 | 2221 | scope_info (char *args, int from_tty) |
c906108c | 2222 | { |
c906108c SS |
2223 | struct symtabs_and_lines sals; |
2224 | struct symbol *sym; | |
2225 | struct minimal_symbol *msym; | |
2226 | struct block *block; | |
2227 | char **canonical, *symname, *save_args = args; | |
de4f826b DC |
2228 | struct dict_iterator iter; |
2229 | int j, count = 0; | |
768a979c UW |
2230 | struct gdbarch *gdbarch; |
2231 | int regno; | |
c906108c SS |
2232 | |
2233 | if (args == 0 || *args == 0) | |
8a3fe4f8 | 2234 | error (_("requires an argument (function, line or *addr) to define a scope")); |
c906108c | 2235 | |
68219205 | 2236 | sals = decode_line_1 (&args, 1, NULL, 0, &canonical, NULL); |
c906108c | 2237 | if (sals.nelts == 0) |
450bd37b | 2238 | return; /* presumably decode_line_1 has already warned */ |
c906108c SS |
2239 | |
2240 | /* Resolve line numbers to PC */ | |
2241 | resolve_sal_pc (&sals.sals[0]); | |
2242 | block = block_for_pc (sals.sals[0].pc); | |
2243 | ||
2244 | while (block != 0) | |
2245 | { | |
c5aa993b | 2246 | QUIT; /* allow user to bail out with ^C */ |
de4f826b | 2247 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 2248 | { |
c5aa993b | 2249 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
2250 | if (count == 0) |
2251 | printf_filtered ("Scope for %s:\n", save_args); | |
2252 | count++; | |
e88c90f2 | 2253 | |
3567439c | 2254 | symname = SYMBOL_PRINT_NAME (sym); |
c906108c | 2255 | if (symname == NULL || *symname == '\0') |
c5aa993b | 2256 | continue; /* probably botched, certainly useless */ |
c906108c | 2257 | |
768a979c UW |
2258 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
2259 | ||
c906108c | 2260 | printf_filtered ("Symbol %s is ", symname); |
c5aa993b JM |
2261 | switch (SYMBOL_CLASS (sym)) |
2262 | { | |
2263 | default: | |
2264 | case LOC_UNDEF: /* messed up symbol? */ | |
2265 | printf_filtered ("a bogus symbol, class %d.\n", | |
2266 | SYMBOL_CLASS (sym)); | |
2267 | count--; /* don't count this one */ | |
2268 | continue; | |
2269 | case LOC_CONST: | |
104c1213 | 2270 | printf_filtered ("a constant with value %ld (0x%lx)", |
c5aa993b JM |
2271 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); |
2272 | break; | |
2273 | case LOC_CONST_BYTES: | |
2274 | printf_filtered ("constant bytes: "); | |
2275 | if (SYMBOL_TYPE (sym)) | |
2276 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) | |
2277 | fprintf_filtered (gdb_stdout, " %02x", | |
2278 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); | |
2279 | break; | |
2280 | case LOC_STATIC: | |
2281 | printf_filtered ("in static storage at address "); | |
5af949e3 UW |
2282 | printf_filtered ("%s", paddress (gdbarch, |
2283 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2284 | break; |
2285 | case LOC_REGISTER: | |
768a979c UW |
2286 | /* GDBARCH is the architecture associated with the objfile |
2287 | the symbol is defined in; the target architecture may be | |
2288 | different, and may provide additional registers. However, | |
2289 | we do not know the target architecture at this point. | |
2290 | We assume the objfile architecture will contain all the | |
2291 | standard registers that occur in debug info in that | |
2292 | objfile. */ | |
2293 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
2294 | ||
2a2d4dc3 AS |
2295 | if (SYMBOL_IS_ARGUMENT (sym)) |
2296 | printf_filtered ("an argument in register $%s", | |
768a979c | 2297 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
2298 | else |
2299 | printf_filtered ("a local variable in register $%s", | |
768a979c | 2300 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2301 | break; |
2302 | case LOC_ARG: | |
c5aa993b JM |
2303 | printf_filtered ("an argument at stack/frame offset %ld", |
2304 | SYMBOL_VALUE (sym)); | |
2305 | break; | |
2306 | case LOC_LOCAL: | |
2307 | printf_filtered ("a local variable at frame offset %ld", | |
2308 | SYMBOL_VALUE (sym)); | |
2309 | break; | |
2310 | case LOC_REF_ARG: | |
2311 | printf_filtered ("a reference argument at offset %ld", | |
2312 | SYMBOL_VALUE (sym)); | |
2313 | break; | |
c5aa993b | 2314 | case LOC_REGPARM_ADDR: |
768a979c UW |
2315 | /* Note comment at LOC_REGISTER. */ |
2316 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
c5aa993b | 2317 | printf_filtered ("the address of an argument, in register $%s", |
768a979c | 2318 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2319 | break; |
2320 | case LOC_TYPEDEF: | |
2321 | printf_filtered ("a typedef.\n"); | |
2322 | continue; | |
2323 | case LOC_LABEL: | |
2324 | printf_filtered ("a label at address "); | |
5af949e3 UW |
2325 | printf_filtered ("%s", paddress (gdbarch, |
2326 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2327 | break; |
2328 | case LOC_BLOCK: | |
2329 | printf_filtered ("a function at address "); | |
5af949e3 UW |
2330 | printf_filtered ("%s", |
2331 | paddress (gdbarch, BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))); | |
c5aa993b | 2332 | break; |
c5aa993b | 2333 | case LOC_UNRESOLVED: |
3567439c | 2334 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), |
450bd37b | 2335 | NULL, NULL); |
c5aa993b JM |
2336 | if (msym == NULL) |
2337 | printf_filtered ("Unresolved Static"); | |
2338 | else | |
2339 | { | |
2340 | printf_filtered ("static storage at address "); | |
5af949e3 UW |
2341 | printf_filtered ("%s", |
2342 | paddress (gdbarch, SYMBOL_VALUE_ADDRESS (msym))); | |
c5aa993b JM |
2343 | } |
2344 | break; | |
2345 | case LOC_OPTIMIZED_OUT: | |
2346 | printf_filtered ("optimized out.\n"); | |
2347 | continue; | |
450bd37b | 2348 | case LOC_COMPUTED: |
768a979c | 2349 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, gdb_stdout); |
450bd37b | 2350 | break; |
c5aa993b | 2351 | } |
c906108c | 2352 | if (SYMBOL_TYPE (sym)) |
c5aa993b | 2353 | printf_filtered (", length %d.\n", |
450bd37b | 2354 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); |
c906108c SS |
2355 | } |
2356 | if (BLOCK_FUNCTION (block)) | |
2357 | break; | |
2358 | else | |
2359 | block = BLOCK_SUPERBLOCK (block); | |
2360 | } | |
2361 | if (count <= 0) | |
2362 | printf_filtered ("Scope for %s contains no locals or arguments.\n", | |
2363 | save_args); | |
2364 | } | |
2365 | ||
2366 | /* worker function (cleanup) */ | |
2367 | static void | |
710b33bd | 2368 | replace_comma (void *data) |
c906108c | 2369 | { |
710b33bd | 2370 | char *comma = data; |
c906108c SS |
2371 | *comma = ','; |
2372 | } | |
2373 | ||
afd02f27 PA |
2374 | |
2375 | /* Helper for trace_dump_command. Dump the action list starting at | |
2376 | ACTION. STEPPING_ACTIONS is true if we're iterating over the | |
2377 | actions of the body of a while-stepping action. STEPPING_FRAME is | |
2378 | set if the current traceframe was determined to be a while-stepping | |
2379 | traceframe. */ | |
2380 | ||
c906108c | 2381 | static void |
afd02f27 PA |
2382 | trace_dump_actions (struct command_line *action, |
2383 | int stepping_actions, int stepping_frame, | |
2384 | int from_tty) | |
c906108c | 2385 | { |
c5aa993b | 2386 | char *action_exp, *next_comma; |
c906108c | 2387 | |
afd02f27 | 2388 | for (; action != NULL; action = action->next) |
c906108c SS |
2389 | { |
2390 | struct cmd_list_element *cmd; | |
2391 | ||
c5aa993b | 2392 | QUIT; /* allow user to bail out with ^C */ |
a7bdde9e | 2393 | action_exp = action->line; |
104c1213 | 2394 | while (isspace ((int) *action_exp)) |
c906108c SS |
2395 | action_exp++; |
2396 | ||
2397 | /* The collection actions to be done while stepping are | |
c5aa993b | 2398 | bracketed by the commands "while-stepping" and "end". */ |
c906108c SS |
2399 | |
2400 | if (*action_exp == '#') /* comment line */ | |
2401 | continue; | |
2402 | ||
2403 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
2404 | if (cmd == 0) | |
8a3fe4f8 | 2405 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 2406 | |
bbaca940 | 2407 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
afd02f27 PA |
2408 | { |
2409 | int i; | |
2410 | ||
2411 | for (i = 0; i < action->body_count; ++i) | |
2412 | trace_dump_actions (action->body_list[i], | |
2413 | 1, stepping_frame, from_tty); | |
2414 | } | |
bbaca940 | 2415 | else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c SS |
2416 | { |
2417 | /* Display the collected data. | |
d183932d MS |
2418 | For the trap frame, display only what was collected at |
2419 | the trap. Likewise for stepping frames, display only | |
2420 | what was collected while stepping. This means that the | |
2421 | two boolean variables, STEPPING_FRAME and | |
2422 | STEPPING_ACTIONS should be equal. */ | |
c906108c SS |
2423 | if (stepping_frame == stepping_actions) |
2424 | { | |
c5aa993b JM |
2425 | do |
2426 | { /* repeat over a comma-separated list */ | |
2427 | QUIT; /* allow user to bail out with ^C */ | |
2428 | if (*action_exp == ',') | |
2429 | action_exp++; | |
104c1213 | 2430 | while (isspace ((int) *action_exp)) |
c5aa993b JM |
2431 | action_exp++; |
2432 | ||
2433 | next_comma = strchr (action_exp, ','); | |
2434 | ||
2435 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2436 | registers_info (NULL, from_tty); | |
2437 | else if (0 == strncasecmp (action_exp, "$loc", 4)) | |
2438 | locals_info (NULL, from_tty); | |
2439 | else if (0 == strncasecmp (action_exp, "$arg", 4)) | |
2440 | args_info (NULL, from_tty); | |
2441 | else | |
2442 | { /* variable */ | |
2443 | if (next_comma) | |
2444 | { | |
2445 | make_cleanup (replace_comma, next_comma); | |
2446 | *next_comma = '\0'; | |
2447 | } | |
2448 | printf_filtered ("%s = ", action_exp); | |
2449 | output_command (action_exp, from_tty); | |
2450 | printf_filtered ("\n"); | |
2451 | } | |
2452 | if (next_comma) | |
2453 | *next_comma = ','; | |
2454 | action_exp = next_comma; | |
2455 | } | |
2456 | while (action_exp && *action_exp == ','); | |
c906108c SS |
2457 | } |
2458 | } | |
2459 | } | |
afd02f27 PA |
2460 | } |
2461 | ||
2462 | /* The tdump command. */ | |
2463 | ||
2464 | static void | |
2465 | trace_dump_command (char *args, int from_tty) | |
2466 | { | |
2467 | struct regcache *regcache; | |
2468 | struct breakpoint *t; | |
2469 | int stepping_frame = 0; | |
2470 | struct bp_location *loc; | |
2471 | ||
2472 | if (tracepoint_number == -1) | |
2473 | { | |
2474 | warning (_("No current trace frame.")); | |
2475 | return; | |
2476 | } | |
2477 | ||
2478 | t = get_tracepoint (tracepoint_number); | |
2479 | ||
2480 | if (t == NULL) | |
2481 | error (_("No known tracepoint matches 'current' tracepoint #%d."), | |
2482 | tracepoint_number); | |
2483 | ||
2484 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", | |
2485 | tracepoint_number, traceframe_number); | |
2486 | ||
2487 | /* The current frame is a trap frame if the frame PC is equal | |
2488 | to the tracepoint PC. If not, then the current frame was | |
2489 | collected during single-stepping. */ | |
2490 | ||
2491 | regcache = get_current_regcache (); | |
2492 | ||
2493 | /* If the traceframe's address matches any of the tracepoint's | |
2494 | locations, assume it is a direct hit rather than a while-stepping | |
2495 | frame. (FIXME this is not reliable, should record each frame's | |
2496 | type.) */ | |
2497 | stepping_frame = 1; | |
2498 | for (loc = t->loc; loc; loc = loc->next) | |
2499 | if (loc->address == regcache_read_pc (regcache)) | |
2500 | stepping_frame = 0; | |
2501 | ||
2502 | trace_dump_actions (breakpoint_commands (t), 0, stepping_frame, from_tty); | |
c906108c SS |
2503 | } |
2504 | ||
409873ef SS |
2505 | /* Encode a piece of a tracepoint's source-level definition in a form |
2506 | that is suitable for both protocol and saving in files. */ | |
2507 | /* This version does not do multiple encodes for long strings; it should | |
2508 | return an offset to the next piece to encode. FIXME */ | |
2509 | ||
2510 | extern int | |
2511 | encode_source_string (int tpnum, ULONGEST addr, | |
2512 | char *srctype, char *src, char *buf, int buf_size) | |
2513 | { | |
2514 | if (80 + strlen (srctype) > buf_size) | |
2515 | error (_("Buffer too small for source encoding")); | |
2516 | sprintf (buf, "%x:%s:%s:%x:%x:", | |
2517 | tpnum, phex_nz (addr, sizeof (addr)), srctype, 0, (int) strlen (src)); | |
2518 | if (strlen (buf) + strlen (src) * 2 >= buf_size) | |
2519 | error (_("Source string too long for buffer")); | |
2520 | bin2hex (src, buf + strlen (buf), 0); | |
2521 | return -1; | |
2522 | } | |
2523 | ||
00bf0b85 SS |
2524 | extern int trace_regblock_size; |
2525 | ||
011aacb0 VP |
2526 | /* Save tracepoint data to file named FILENAME. If TARGET_DOES_SAVE is |
2527 | non-zero, the save is performed on the target, otherwise GDB obtains all | |
2528 | trace data and saves it locally. */ | |
2529 | ||
2530 | void | |
2531 | trace_save (const char *filename, int target_does_save) | |
00bf0b85 | 2532 | { |
00bf0b85 | 2533 | struct cleanup *cleanup; |
011aacb0 | 2534 | char *pathname; |
00bf0b85 SS |
2535 | struct trace_status *ts = current_trace_status (); |
2536 | int err, status; | |
2537 | FILE *fp; | |
2538 | struct uploaded_tp *uploaded_tps = NULL, *utp; | |
2539 | struct uploaded_tsv *uploaded_tsvs = NULL, *utsv; | |
2540 | int a; | |
3149d8c1 | 2541 | char *act; |
00bf0b85 SS |
2542 | LONGEST gotten = 0; |
2543 | ULONGEST offset = 0; | |
2544 | #define MAX_TRACE_UPLOAD 2000 | |
2545 | gdb_byte buf[MAX_TRACE_UPLOAD]; | |
98e03262 | 2546 | int written; |
00bf0b85 | 2547 | |
00bf0b85 SS |
2548 | /* If the target is to save the data to a file on its own, then just |
2549 | send the command and be done with it. */ | |
2550 | if (target_does_save) | |
2551 | { | |
2552 | err = target_save_trace_data (filename); | |
2553 | if (err < 0) | |
2554 | error (_("Target failed to save trace data to '%s'."), | |
2555 | filename); | |
2556 | return; | |
2557 | } | |
2558 | ||
2559 | /* Get the trace status first before opening the file, so if the | |
2560 | target is losing, we can get out without touching files. */ | |
2561 | status = target_get_trace_status (ts); | |
2562 | ||
011aacb0 | 2563 | pathname = tilde_expand (filename); |
00bf0b85 SS |
2564 | cleanup = make_cleanup (xfree, pathname); |
2565 | ||
2566 | fp = fopen (pathname, "w"); | |
2567 | if (!fp) | |
2568 | error (_("Unable to open file '%s' for saving trace data (%s)"), | |
011aacb0 | 2569 | filename, safe_strerror (errno)); |
00bf0b85 SS |
2570 | make_cleanup_fclose (fp); |
2571 | ||
2572 | /* Write a file header, with a high-bit-set char to indicate a | |
2573 | binary file, plus a hint as what this file is, and a version | |
2574 | number in case of future needs. */ | |
98e03262 | 2575 | written = fwrite ("\x7fTRACE0\n", 8, 1, fp); |
409873ef | 2576 | if (written < 1) |
98e03262 | 2577 | perror_with_name (pathname); |
00bf0b85 SS |
2578 | |
2579 | /* Write descriptive info. */ | |
2580 | ||
2581 | /* Write out the size of a register block. */ | |
2582 | fprintf (fp, "R %x\n", trace_regblock_size); | |
2583 | ||
2584 | /* Write out status of the tracing run (aka "tstatus" info). */ | |
6c28cbf2 SS |
2585 | fprintf (fp, "status %c;%s", |
2586 | (ts->running ? '1' : '0'), stop_reason_names[ts->stop_reason]); | |
6c28cbf2 SS |
2587 | if (ts->stop_reason == tracepoint_error) |
2588 | { | |
2589 | char *buf = (char *) alloca (strlen (ts->error_desc) * 2 + 1); | |
2590 | bin2hex ((gdb_byte *) ts->error_desc, buf, 0); | |
610197fd | 2591 | fprintf (fp, ":%s", buf); |
6c28cbf2 SS |
2592 | } |
2593 | fprintf (fp, ":%x", ts->stopping_tracepoint); | |
4daf5ac0 SS |
2594 | if (ts->traceframe_count >= 0) |
2595 | fprintf (fp, ";tframes:%x", ts->traceframe_count); | |
2596 | if (ts->traceframes_created >= 0) | |
2597 | fprintf (fp, ";tcreated:%x", ts->traceframes_created); | |
2598 | if (ts->buffer_free >= 0) | |
2599 | fprintf (fp, ";tfree:%x", ts->buffer_free); | |
2600 | if (ts->buffer_size >= 0) | |
2601 | fprintf (fp, ";tsize:%x", ts->buffer_size); | |
2602 | fprintf (fp, "\n"); | |
00bf0b85 SS |
2603 | |
2604 | /* Note that we want to upload tracepoints and save those, rather | |
2605 | than simply writing out the local ones, because the user may have | |
2606 | changed tracepoints in GDB in preparation for a future tracing | |
2607 | run, or maybe just mass-deleted all types of breakpoints as part | |
2608 | of cleaning up. So as not to contaminate the session, leave the | |
2609 | data in its uploaded form, don't make into real tracepoints. */ | |
2610 | ||
2611 | /* Get trace state variables first, they may be checked when parsing | |
2612 | uploaded commands. */ | |
2613 | ||
2614 | target_upload_trace_state_variables (&uploaded_tsvs); | |
2615 | ||
2616 | for (utsv = uploaded_tsvs; utsv; utsv = utsv->next) | |
2617 | { | |
2618 | char *buf = ""; | |
2619 | ||
2620 | if (utsv->name) | |
2621 | { | |
2622 | buf = (char *) xmalloc (strlen (utsv->name) * 2 + 1); | |
2623 | bin2hex ((gdb_byte *) (utsv->name), buf, 0); | |
2624 | } | |
2625 | ||
2626 | fprintf (fp, "tsv %x:%s:%x:%s\n", | |
2627 | utsv->number, phex_nz (utsv->initial_value, 8), | |
2628 | utsv->builtin, buf); | |
2629 | ||
2630 | if (utsv->name) | |
2631 | xfree (buf); | |
2632 | } | |
2633 | ||
2634 | free_uploaded_tsvs (&uploaded_tsvs); | |
2635 | ||
2636 | target_upload_tracepoints (&uploaded_tps); | |
2637 | ||
2638 | for (utp = uploaded_tps; utp; utp = utp->next) | |
2639 | { | |
2640 | fprintf (fp, "tp T%x:%s:%c:%x:%x", | |
2641 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), | |
2642 | (utp->enabled ? 'E' : 'D'), utp->step, utp->pass); | |
2643 | if (utp->type == bp_fast_tracepoint) | |
2644 | fprintf (fp, ":F%x", utp->orig_size); | |
2645 | if (utp->cond) | |
2646 | fprintf (fp, ":X%x,%s", (unsigned int) strlen (utp->cond) / 2, | |
2647 | utp->cond); | |
2648 | fprintf (fp, "\n"); | |
3149d8c1 | 2649 | for (a = 0; VEC_iterate (char_ptr, utp->actions, a, act); ++a) |
00bf0b85 | 2650 | fprintf (fp, "tp A%x:%s:%s\n", |
3149d8c1 SS |
2651 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), act); |
2652 | for (a = 0; VEC_iterate (char_ptr, utp->actions, a, act); ++a) | |
00bf0b85 | 2653 | fprintf (fp, "tp S%x:%s:%s\n", |
3149d8c1 | 2654 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), act); |
409873ef SS |
2655 | if (utp->at_string) |
2656 | { | |
2657 | encode_source_string (utp->number, utp->addr, | |
2658 | "at", utp->at_string, buf, MAX_TRACE_UPLOAD); | |
2659 | fprintf (fp, "tp Z%s\n", buf); | |
2660 | } | |
2661 | if (utp->cond_string) | |
2662 | { | |
2663 | encode_source_string (utp->number, utp->addr, | |
2664 | "cond", utp->cond_string, buf, MAX_TRACE_UPLOAD); | |
2665 | fprintf (fp, "tp Z%s\n", buf); | |
2666 | } | |
3149d8c1 | 2667 | for (a = 0; VEC_iterate (char_ptr, utp->cmd_strings, a, act); ++a) |
409873ef | 2668 | { |
3149d8c1 | 2669 | encode_source_string (utp->number, utp->addr, "cmd", act, |
409873ef SS |
2670 | buf, MAX_TRACE_UPLOAD); |
2671 | fprintf (fp, "tp Z%s\n", buf); | |
2672 | } | |
00bf0b85 SS |
2673 | } |
2674 | ||
2675 | free_uploaded_tps (&uploaded_tps); | |
2676 | ||
2677 | /* Mark the end of the definition section. */ | |
2678 | fprintf (fp, "\n"); | |
2679 | ||
2680 | /* Get and write the trace data proper. We ask for big blocks, in | |
2681 | the hopes of efficiency, but will take less if the target has | |
2682 | packet size limitations or some such. */ | |
2683 | while (1) | |
2684 | { | |
2685 | gotten = target_get_raw_trace_data (buf, offset, MAX_TRACE_UPLOAD); | |
2686 | if (gotten < 0) | |
2687 | error (_("Failure to get requested trace buffer data")); | |
2688 | /* No more data is forthcoming, we're done. */ | |
2689 | if (gotten == 0) | |
2690 | break; | |
98e03262 | 2691 | written = fwrite (buf, gotten, 1, fp); |
409873ef | 2692 | if (written < 1) |
98e03262 | 2693 | perror_with_name (pathname); |
00bf0b85 SS |
2694 | offset += gotten; |
2695 | } | |
2696 | ||
409873ef | 2697 | /* Mark the end of trace data. (We know that gotten is 0 at this point.) */ |
98e03262 | 2698 | written = fwrite (&gotten, 4, 1, fp); |
409873ef | 2699 | if (written < 1) |
98e03262 | 2700 | perror_with_name (pathname); |
00bf0b85 SS |
2701 | |
2702 | do_cleanups (cleanup); | |
011aacb0 VP |
2703 | } |
2704 | ||
2705 | static void | |
2706 | trace_save_command (char *args, int from_tty) | |
2707 | { | |
2708 | int target_does_save = 0; | |
2709 | char **argv; | |
2710 | char *filename = NULL; | |
2711 | struct cleanup *back_to; | |
2712 | ||
2713 | if (args == NULL) | |
2714 | error_no_arg (_("file in which to save trace data")); | |
2715 | ||
2716 | argv = gdb_buildargv (args); | |
2717 | back_to = make_cleanup_freeargv (argv); | |
2718 | ||
2719 | for (; *argv; ++argv) | |
2720 | { | |
2721 | if (strcmp (*argv, "-r") == 0) | |
2722 | target_does_save = 1; | |
2723 | else if (**argv == '-') | |
2724 | error (_("unknown option `%s'"), *argv); | |
2725 | else | |
2726 | filename = *argv; | |
2727 | } | |
2728 | ||
2729 | if (!filename) | |
2730 | error_no_arg (_("file in which to save trace data")); | |
2731 | ||
2732 | trace_save (filename, target_does_save); | |
2733 | ||
00bf0b85 SS |
2734 | if (from_tty) |
2735 | printf_filtered (_("Trace data saved to file '%s'.\n"), args); | |
011aacb0 VP |
2736 | |
2737 | do_cleanups (back_to); | |
00bf0b85 SS |
2738 | } |
2739 | ||
d5551862 SS |
2740 | /* Tell the target what to do with an ongoing tracing run if GDB |
2741 | disconnects for some reason. */ | |
2742 | ||
2743 | void | |
2744 | send_disconnected_tracing_value (int value) | |
2745 | { | |
35b1e5cc | 2746 | target_set_disconnected_tracing (value); |
d5551862 SS |
2747 | } |
2748 | ||
2749 | static void | |
2750 | set_disconnected_tracing (char *args, int from_tty, | |
2751 | struct cmd_list_element *c) | |
2752 | { | |
2753 | send_disconnected_tracing_value (disconnected_tracing); | |
2754 | } | |
2755 | ||
4daf5ac0 SS |
2756 | static void |
2757 | set_circular_trace_buffer (char *args, int from_tty, | |
2758 | struct cmd_list_element *c) | |
2759 | { | |
2760 | target_set_circular_trace_buffer (circular_trace_buffer); | |
2761 | } | |
2762 | ||
c906108c SS |
2763 | /* Convert the memory pointed to by mem into hex, placing result in buf. |
2764 | * Return a pointer to the last char put in buf (null) | |
2765 | * "stolen" from sparc-stub.c | |
2766 | */ | |
2767 | ||
c5aa993b | 2768 | static const char hexchars[] = "0123456789abcdef"; |
c906108c | 2769 | |
47b667de AC |
2770 | static char * |
2771 | mem2hex (gdb_byte *mem, char *buf, int count) | |
c906108c | 2772 | { |
47b667de | 2773 | gdb_byte ch; |
c906108c SS |
2774 | |
2775 | while (count-- > 0) | |
2776 | { | |
2777 | ch = *mem++; | |
2778 | ||
2779 | *buf++ = hexchars[ch >> 4]; | |
2780 | *buf++ = hexchars[ch & 0xf]; | |
2781 | } | |
2782 | ||
2783 | *buf = 0; | |
2784 | ||
2785 | return buf; | |
2786 | } | |
2787 | ||
c5aa993b | 2788 | int |
fba45db2 | 2789 | get_traceframe_number (void) |
c906108c | 2790 | { |
c5aa993b | 2791 | return traceframe_number; |
c906108c SS |
2792 | } |
2793 | ||
06cd862c PA |
2794 | /* Make the traceframe NUM be the current trace frame. Does nothing |
2795 | if NUM is already current. */ | |
2796 | ||
2797 | void | |
2798 | set_traceframe_number (int num) | |
2799 | { | |
2800 | int newnum; | |
2801 | ||
2802 | if (traceframe_number == num) | |
2803 | { | |
2804 | /* Nothing to do. */ | |
2805 | return; | |
2806 | } | |
2807 | ||
2808 | newnum = target_trace_find (tfind_number, num, 0, 0, NULL); | |
2809 | ||
2810 | if (newnum != num) | |
2811 | warning (_("could not change traceframe")); | |
2812 | ||
2813 | traceframe_number = newnum; | |
2814 | ||
2815 | /* Changing the traceframe changes our view of registers and of the | |
2816 | frame chain. */ | |
2817 | registers_changed (); | |
2818 | } | |
2819 | ||
2820 | /* A cleanup used when switching away and back from tfind mode. */ | |
2821 | ||
2822 | struct current_traceframe_cleanup | |
2823 | { | |
2824 | /* The traceframe we were inspecting. */ | |
2825 | int traceframe_number; | |
2826 | }; | |
2827 | ||
2828 | static void | |
2829 | do_restore_current_traceframe_cleanup (void *arg) | |
2830 | { | |
2831 | struct current_traceframe_cleanup *old = arg; | |
2832 | ||
2833 | set_traceframe_number (old->traceframe_number); | |
2834 | } | |
2835 | ||
2836 | static void | |
2837 | restore_current_traceframe_cleanup_dtor (void *arg) | |
2838 | { | |
2839 | struct current_traceframe_cleanup *old = arg; | |
2840 | ||
2841 | xfree (old); | |
2842 | } | |
2843 | ||
2844 | struct cleanup * | |
2845 | make_cleanup_restore_current_traceframe (void) | |
2846 | { | |
2847 | struct current_traceframe_cleanup *old; | |
2848 | ||
2849 | old = xmalloc (sizeof (struct current_traceframe_cleanup)); | |
2850 | old->traceframe_number = traceframe_number; | |
2851 | ||
2852 | return make_cleanup_dtor (do_restore_current_traceframe_cleanup, old, | |
2853 | restore_current_traceframe_cleanup_dtor); | |
2854 | } | |
00bf0b85 SS |
2855 | |
2856 | /* Given a number and address, return an uploaded tracepoint with that | |
2857 | number, creating if necessary. */ | |
2858 | ||
2859 | struct uploaded_tp * | |
2860 | get_uploaded_tp (int num, ULONGEST addr, struct uploaded_tp **utpp) | |
2861 | { | |
2862 | struct uploaded_tp *utp; | |
2863 | ||
2864 | for (utp = *utpp; utp; utp = utp->next) | |
2865 | if (utp->number == num && utp->addr == addr) | |
2866 | return utp; | |
2867 | utp = (struct uploaded_tp *) xmalloc (sizeof (struct uploaded_tp)); | |
2868 | memset (utp, 0, sizeof (struct uploaded_tp)); | |
2869 | utp->number = num; | |
2870 | utp->addr = addr; | |
3149d8c1 SS |
2871 | utp->actions = NULL; |
2872 | utp->step_actions = NULL; | |
2873 | utp->cmd_strings = NULL; | |
00bf0b85 SS |
2874 | utp->next = *utpp; |
2875 | *utpp = utp; | |
2876 | return utp; | |
2877 | } | |
2878 | ||
2879 | static void | |
2880 | free_uploaded_tps (struct uploaded_tp **utpp) | |
2881 | { | |
2882 | struct uploaded_tp *next_one; | |
2883 | ||
2884 | while (*utpp) | |
2885 | { | |
2886 | next_one = (*utpp)->next; | |
2887 | xfree (*utpp); | |
2888 | *utpp = next_one; | |
2889 | } | |
2890 | } | |
2891 | ||
2892 | /* Given a number and address, return an uploaded tracepoint with that | |
2893 | number, creating if necessary. */ | |
2894 | ||
2895 | struct uploaded_tsv * | |
2896 | get_uploaded_tsv (int num, struct uploaded_tsv **utsvp) | |
2897 | { | |
2898 | struct uploaded_tsv *utsv; | |
2899 | ||
2900 | for (utsv = *utsvp; utsv; utsv = utsv->next) | |
2901 | if (utsv->number == num) | |
2902 | return utsv; | |
2903 | utsv = (struct uploaded_tsv *) xmalloc (sizeof (struct uploaded_tsv)); | |
2904 | memset (utsv, 0, sizeof (struct uploaded_tsv)); | |
2905 | utsv->number = num; | |
2906 | utsv->next = *utsvp; | |
2907 | *utsvp = utsv; | |
2908 | return utsv; | |
2909 | } | |
2910 | ||
2911 | static void | |
2912 | free_uploaded_tsvs (struct uploaded_tsv **utsvp) | |
2913 | { | |
2914 | struct uploaded_tsv *next_one; | |
2915 | ||
2916 | while (*utsvp) | |
2917 | { | |
2918 | next_one = (*utsvp)->next; | |
2919 | xfree (*utsvp); | |
2920 | *utsvp = next_one; | |
2921 | } | |
2922 | } | |
2923 | ||
2924 | /* Look for an existing tracepoint that seems similar enough to the | |
2925 | uploaded one. Enablement isn't compared, because the user can | |
2926 | toggle that freely, and may have done so in anticipation of the | |
2927 | next trace run. */ | |
2928 | ||
2929 | struct breakpoint * | |
2930 | find_matching_tracepoint (struct uploaded_tp *utp) | |
2931 | { | |
2932 | VEC(breakpoint_p) *tp_vec = all_tracepoints (); | |
2933 | int ix; | |
2934 | struct breakpoint *t; | |
2935 | struct bp_location *loc; | |
2936 | ||
2937 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
2938 | { | |
2939 | if (t->type == utp->type | |
2940 | && t->step_count == utp->step | |
2941 | && t->pass_count == utp->pass | |
2942 | /* FIXME also test conditionals and actions */ | |
2943 | ) | |
2944 | { | |
2945 | /* Scan the locations for an address match. */ | |
2946 | for (loc = t->loc; loc; loc = loc->next) | |
2947 | { | |
2948 | if (loc->address == utp->addr) | |
2949 | return t; | |
2950 | } | |
2951 | } | |
2952 | } | |
2953 | return NULL; | |
2954 | } | |
2955 | ||
2956 | /* Given a list of tracepoints uploaded from a target, attempt to | |
2957 | match them up with existing tracepoints, and create new ones if not | |
2958 | found. */ | |
2959 | ||
2960 | void | |
2961 | merge_uploaded_tracepoints (struct uploaded_tp **uploaded_tps) | |
2962 | { | |
2963 | struct uploaded_tp *utp; | |
2964 | struct breakpoint *t; | |
2965 | ||
2966 | /* Look for GDB tracepoints that match up with our uploaded versions. */ | |
2967 | for (utp = *uploaded_tps; utp; utp = utp->next) | |
2968 | { | |
2969 | t = find_matching_tracepoint (utp); | |
2970 | if (t) | |
2971 | printf_filtered (_("Assuming tracepoint %d is same as target's tracepoint %d at %s.\n"), | |
2972 | t->number, utp->number, paddress (get_current_arch (), utp->addr)); | |
2973 | else | |
2974 | { | |
2975 | t = create_tracepoint_from_upload (utp); | |
2976 | if (t) | |
2977 | printf_filtered (_("Created tracepoint %d for target's tracepoint %d at %s.\n"), | |
2978 | t->number, utp->number, paddress (get_current_arch (), utp->addr)); | |
2979 | else | |
2980 | printf_filtered (_("Failed to create tracepoint for target's tracepoint %d at %s, skipping it.\n"), | |
2981 | utp->number, paddress (get_current_arch (), utp->addr)); | |
2982 | } | |
2983 | /* Whether found or created, record the number used by the | |
2984 | target, to help with mapping target tracepoints back to their | |
2985 | counterparts here. */ | |
2986 | if (t) | |
2987 | t->number_on_target = utp->number; | |
2988 | } | |
2989 | ||
2990 | free_uploaded_tps (uploaded_tps); | |
2991 | } | |
2992 | ||
2993 | /* Trace state variables don't have much to identify them beyond their | |
2994 | name, so just use that to detect matches. */ | |
2995 | ||
2996 | struct trace_state_variable * | |
2997 | find_matching_tsv (struct uploaded_tsv *utsv) | |
2998 | { | |
2999 | if (!utsv->name) | |
3000 | return NULL; | |
3001 | ||
3002 | return find_trace_state_variable (utsv->name); | |
3003 | } | |
3004 | ||
3005 | struct trace_state_variable * | |
3006 | create_tsv_from_upload (struct uploaded_tsv *utsv) | |
3007 | { | |
3008 | const char *namebase; | |
3009 | char buf[20]; | |
3010 | int try_num = 0; | |
3011 | struct trace_state_variable *tsv; | |
3012 | ||
3013 | if (utsv->name) | |
3014 | { | |
3015 | namebase = utsv->name; | |
3016 | sprintf (buf, "%s", namebase); | |
3017 | } | |
3018 | else | |
3019 | { | |
3020 | namebase = "__tsv"; | |
3021 | sprintf (buf, "%s_%d", namebase, try_num++); | |
3022 | } | |
3023 | ||
3024 | /* Fish for a name that is not in use. */ | |
3025 | /* (should check against all internal vars?) */ | |
3026 | while (find_trace_state_variable (buf)) | |
3027 | sprintf (buf, "%s_%d", namebase, try_num++); | |
3028 | ||
3029 | /* We have an available name, create the variable. */ | |
3030 | tsv = create_trace_state_variable (xstrdup (buf)); | |
3031 | tsv->initial_value = utsv->initial_value; | |
3032 | tsv->builtin = utsv->builtin; | |
3033 | ||
3034 | return tsv; | |
3035 | } | |
3036 | ||
3037 | /* Given a list of uploaded trace state variables, try to match them | |
3038 | up with existing variables, or create additional ones. */ | |
3039 | ||
3040 | void | |
3041 | merge_uploaded_trace_state_variables (struct uploaded_tsv **uploaded_tsvs) | |
3042 | { | |
3043 | int ix; | |
3044 | struct uploaded_tsv *utsv; | |
3045 | struct trace_state_variable *tsv; | |
3046 | int highest; | |
3047 | ||
3048 | /* Most likely some numbers will have to be reassigned as part of | |
3049 | the merge, so clear them all in anticipation. */ | |
3050 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3051 | tsv->number = 0; | |
3052 | ||
3053 | for (utsv = *uploaded_tsvs; utsv; utsv = utsv->next) | |
3054 | { | |
3055 | tsv = find_matching_tsv (utsv); | |
3056 | if (tsv) | |
3057 | printf_filtered (_("Assuming trace state variable $%s is same as target's variable %d.\n"), | |
3058 | tsv->name, utsv->number); | |
3059 | else | |
3060 | { | |
3061 | tsv = create_tsv_from_upload (utsv); | |
3062 | printf_filtered (_("Created trace state variable $%s for target's variable %d.\n"), | |
3063 | tsv->name, utsv->number); | |
3064 | } | |
3065 | /* Give precedence to numberings that come from the target. */ | |
3066 | if (tsv) | |
3067 | tsv->number = utsv->number; | |
3068 | } | |
3069 | ||
3070 | /* Renumber everything that didn't get a target-assigned number. */ | |
3071 | highest = 0; | |
3072 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3073 | if (tsv->number > highest) | |
3074 | highest = tsv->number; | |
3075 | ||
3076 | ++highest; | |
3077 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3078 | if (tsv->number == 0) | |
3079 | tsv->number = highest++; | |
3080 | ||
3081 | free_uploaded_tsvs (uploaded_tsvs); | |
3082 | } | |
3083 | ||
3084 | /* target tfile command */ | |
3085 | ||
3086 | struct target_ops tfile_ops; | |
3087 | ||
3088 | /* Fill in tfile_ops with its defined operations and properties. */ | |
3089 | ||
3090 | #define TRACE_HEADER_SIZE 8 | |
3091 | ||
98e03262 | 3092 | char *trace_filename; |
00bf0b85 SS |
3093 | int trace_fd = -1; |
3094 | off_t trace_frames_offset; | |
3095 | off_t cur_offset; | |
3096 | int cur_data_size; | |
3097 | int trace_regblock_size; | |
3098 | ||
3099 | static void tfile_interp_line (char *line, | |
3100 | struct uploaded_tp **utpp, | |
3101 | struct uploaded_tsv **utsvp); | |
3102 | ||
3103 | static void | |
3104 | tfile_open (char *filename, int from_tty) | |
3105 | { | |
3106 | char *temp; | |
3107 | struct cleanup *old_chain; | |
3108 | int flags; | |
3109 | int scratch_chan; | |
3110 | char header[TRACE_HEADER_SIZE]; | |
3111 | char linebuf[1000]; /* should be max remote packet size or so */ | |
3112 | char byte; | |
98e03262 | 3113 | int bytes, i, gotten; |
00bf0b85 SS |
3114 | struct trace_status *ts; |
3115 | struct uploaded_tp *uploaded_tps = NULL; | |
3116 | struct uploaded_tsv *uploaded_tsvs = NULL; | |
3117 | ||
3118 | target_preopen (from_tty); | |
3119 | if (!filename) | |
3120 | error (_("No trace file specified.")); | |
3121 | ||
3122 | filename = tilde_expand (filename); | |
3123 | if (!IS_ABSOLUTE_PATH(filename)) | |
3124 | { | |
3125 | temp = concat (current_directory, "/", filename, (char *)NULL); | |
3126 | xfree (filename); | |
3127 | filename = temp; | |
3128 | } | |
3129 | ||
3130 | old_chain = make_cleanup (xfree, filename); | |
3131 | ||
3132 | flags = O_BINARY | O_LARGEFILE; | |
3133 | flags |= O_RDONLY; | |
3134 | scratch_chan = open (filename, flags, 0); | |
3135 | if (scratch_chan < 0) | |
3136 | perror_with_name (filename); | |
3137 | ||
3138 | /* Looks semi-reasonable. Toss the old trace file and work on the new. */ | |
3139 | ||
3140 | discard_cleanups (old_chain); /* Don't free filename any more */ | |
3141 | unpush_target (&tfile_ops); | |
3142 | ||
3143 | push_target (&tfile_ops); | |
00bf0b85 | 3144 | |
98e03262 | 3145 | trace_filename = xstrdup (filename); |
00bf0b85 SS |
3146 | trace_fd = scratch_chan; |
3147 | ||
3148 | bytes = 0; | |
3149 | /* Read the file header and test for validity. */ | |
98e03262 SS |
3150 | gotten = read (trace_fd, &header, TRACE_HEADER_SIZE); |
3151 | if (gotten < 0) | |
3152 | perror_with_name (trace_filename); | |
3153 | else if (gotten < TRACE_HEADER_SIZE) | |
3154 | error (_("Premature end of file while reading trace file")); | |
3155 | ||
00bf0b85 SS |
3156 | bytes += TRACE_HEADER_SIZE; |
3157 | if (!(header[0] == 0x7f | |
3158 | && (strncmp (header + 1, "TRACE0\n", 7) == 0))) | |
3159 | error (_("File is not a valid trace file.")); | |
3160 | ||
3161 | trace_regblock_size = 0; | |
3162 | ts = current_trace_status (); | |
3163 | /* We know we're working with a file. */ | |
3164 | ts->from_file = 1; | |
3165 | /* Set defaults in case there is no status line. */ | |
3166 | ts->running_known = 0; | |
3167 | ts->stop_reason = trace_stop_reason_unknown; | |
3168 | ts->traceframe_count = -1; | |
3169 | ts->buffer_free = 0; | |
3170 | ||
3171 | /* Read through a section of newline-terminated lines that | |
3172 | define things like tracepoints. */ | |
3173 | i = 0; | |
3174 | while (1) | |
3175 | { | |
98e03262 SS |
3176 | gotten = read (trace_fd, &byte, 1); |
3177 | if (gotten < 0) | |
3178 | perror_with_name (trace_filename); | |
3179 | else if (gotten < 1) | |
3180 | error (_("Premature end of file while reading trace file")); | |
3181 | ||
00bf0b85 SS |
3182 | ++bytes; |
3183 | if (byte == '\n') | |
3184 | { | |
3185 | /* Empty line marks end of the definition section. */ | |
3186 | if (i == 0) | |
3187 | break; | |
3188 | linebuf[i] = '\0'; | |
3189 | i = 0; | |
3190 | tfile_interp_line (linebuf, &uploaded_tps, &uploaded_tsvs); | |
3191 | } | |
3192 | else | |
3193 | linebuf[i++] = byte; | |
3194 | if (i >= 1000) | |
3195 | error (_("Excessively long lines in trace file")); | |
3196 | } | |
3197 | ||
3198 | /* Add the file's tracepoints and variables into the current mix. */ | |
3199 | ||
10ef8d6a PA |
3200 | /* Get trace state variables first, they may be checked when parsing |
3201 | uploaded commands. */ | |
00bf0b85 SS |
3202 | merge_uploaded_trace_state_variables (&uploaded_tsvs); |
3203 | ||
10ef8d6a PA |
3204 | merge_uploaded_tracepoints (&uploaded_tps); |
3205 | ||
00bf0b85 SS |
3206 | /* Record the starting offset of the binary trace data. */ |
3207 | trace_frames_offset = bytes; | |
3208 | ||
3209 | /* If we don't have a blocksize, we can't interpret the | |
3210 | traceframes. */ | |
3211 | if (trace_regblock_size == 0) | |
3212 | error (_("No register block size recorded in trace file")); | |
3213 | if (ts->traceframe_count <= 0) | |
3214 | { | |
3215 | warning ("No traceframes present in this file."); | |
3216 | return; | |
3217 | } | |
3218 | ||
3219 | #define TFILE_PID (1) | |
3220 | inferior_appeared (current_inferior (), TFILE_PID); | |
3221 | inferior_ptid = pid_to_ptid (TFILE_PID); | |
3222 | add_thread_silent (inferior_ptid); | |
3223 | ||
3224 | post_create_inferior (&tfile_ops, from_tty); | |
3225 | ||
3226 | #if 0 | |
3227 | /* FIXME this will get defined in MI patch submission */ | |
3228 | tfind_1 (tfind_number, 0, 0, 0, 0); | |
3229 | #endif | |
3230 | } | |
3231 | ||
3232 | /* Interpret the given line from the definitions part of the trace | |
3233 | file. */ | |
3234 | ||
3235 | static void | |
3236 | tfile_interp_line (char *line, | |
3237 | struct uploaded_tp **utpp, struct uploaded_tsv **utsvp) | |
3238 | { | |
3239 | char *p = line; | |
3240 | ||
3241 | if (strncmp (p, "R ", strlen ("R ")) == 0) | |
3242 | { | |
3243 | p += strlen ("R "); | |
3244 | trace_regblock_size = strtol (p, &p, 16); | |
3245 | } | |
3246 | else if (strncmp (p, "status ", strlen ("status ")) == 0) | |
3247 | { | |
3248 | p += strlen ("status "); | |
3249 | parse_trace_status (p, current_trace_status ()); | |
3250 | } | |
3251 | else if (strncmp (p, "tp ", strlen ("tp ")) == 0) | |
3252 | { | |
3253 | p += strlen ("tp "); | |
3254 | parse_tracepoint_definition (p, utpp); | |
3255 | } | |
3256 | else if (strncmp (p, "tsv ", strlen ("tsv ")) == 0) | |
3257 | { | |
3258 | p += strlen ("tsv "); | |
3259 | parse_tsv_definition (p, utsvp); | |
3260 | } | |
3261 | else | |
3262 | warning ("Ignoring trace file definition \"%s\"", line); | |
3263 | } | |
3264 | ||
3265 | /* Parse the part of trace status syntax that is shared between | |
3266 | the remote protocol and the trace file reader. */ | |
3267 | ||
3268 | extern char *unpack_varlen_hex (char *buff, ULONGEST *result); | |
3269 | ||
3270 | void | |
3271 | parse_trace_status (char *line, struct trace_status *ts) | |
3272 | { | |
6c28cbf2 | 3273 | char *p = line, *p1, *p2, *p_temp; |
00bf0b85 SS |
3274 | ULONGEST val; |
3275 | ||
3276 | ts->running_known = 1; | |
3277 | ts->running = (*p++ == '1'); | |
3278 | ts->stop_reason = trace_stop_reason_unknown; | |
a609a0c8 PA |
3279 | xfree (ts->error_desc); |
3280 | ts->error_desc = NULL; | |
4daf5ac0 SS |
3281 | ts->traceframe_count = -1; |
3282 | ts->traceframes_created = -1; | |
3283 | ts->buffer_free = -1; | |
3284 | ts->buffer_size = -1; | |
3285 | ||
00bf0b85 SS |
3286 | while (*p++) |
3287 | { | |
3288 | p1 = strchr (p, ':'); | |
3289 | if (p1 == NULL) | |
3290 | error (_("Malformed trace status, at %s\n\ | |
3291 | Status line: '%s'\n"), p, line); | |
3292 | if (strncmp (p, stop_reason_names[trace_buffer_full], p1 - p) == 0) | |
3293 | { | |
3294 | p = unpack_varlen_hex (++p1, &val); | |
3295 | ts->stop_reason = trace_buffer_full; | |
3296 | } | |
3297 | else if (strncmp (p, stop_reason_names[trace_never_run], p1 - p) == 0) | |
3298 | { | |
3299 | p = unpack_varlen_hex (++p1, &val); | |
3300 | ts->stop_reason = trace_never_run; | |
3301 | } | |
3302 | else if (strncmp (p, stop_reason_names[tracepoint_passcount], p1 - p) == 0) | |
3303 | { | |
3304 | p = unpack_varlen_hex (++p1, &val); | |
3305 | ts->stop_reason = tracepoint_passcount; | |
3306 | ts->stopping_tracepoint = val; | |
3307 | } | |
3308 | else if (strncmp (p, stop_reason_names[tstop_command], p1 - p) == 0) | |
3309 | { | |
3310 | p = unpack_varlen_hex (++p1, &val); | |
3311 | ts->stop_reason = tstop_command; | |
3312 | } | |
6c28cbf2 SS |
3313 | else if (strncmp (p, stop_reason_names[tracepoint_error], p1 - p) == 0) |
3314 | { | |
3315 | p2 = strchr (++p1, ':'); | |
3316 | if (p2 != p1) | |
3317 | { | |
3318 | int end; | |
99b5e152 PA |
3319 | |
3320 | ts->error_desc = xmalloc ((p2 - p1) / 2 + 1); | |
3321 | end = hex2bin (p1, ts->error_desc, (p2 - p1) / 2); | |
6c28cbf2 SS |
3322 | ts->error_desc[end] = '\0'; |
3323 | } | |
a609a0c8 PA |
3324 | else |
3325 | ts->error_desc = xstrdup (""); | |
3326 | ||
6c28cbf2 SS |
3327 | p = unpack_varlen_hex (++p2, &val); |
3328 | ts->stopping_tracepoint = val; | |
3329 | ts->stop_reason = tracepoint_error; | |
3330 | } | |
4daf5ac0 | 3331 | else if (strncmp (p, "tframes", p1 - p) == 0) |
00bf0b85 SS |
3332 | { |
3333 | p = unpack_varlen_hex (++p1, &val); | |
3334 | ts->traceframe_count = val; | |
3335 | } | |
4daf5ac0 SS |
3336 | else if (strncmp (p, "tcreated", p1 - p) == 0) |
3337 | { | |
3338 | p = unpack_varlen_hex (++p1, &val); | |
3339 | ts->traceframes_created = val; | |
3340 | } | |
3341 | else if (strncmp (p, "tfree", p1 - p) == 0) | |
00bf0b85 SS |
3342 | { |
3343 | p = unpack_varlen_hex (++p1, &val); | |
3344 | ts->buffer_free = val; | |
3345 | } | |
4daf5ac0 SS |
3346 | else if (strncmp (p, "tsize", p1 - p) == 0) |
3347 | { | |
3348 | p = unpack_varlen_hex (++p1, &val); | |
3349 | ts->buffer_size = val; | |
3350 | } | |
00bf0b85 SS |
3351 | else |
3352 | { | |
3353 | /* Silently skip unknown optional info. */ | |
3354 | p_temp = strchr (p1 + 1, ';'); | |
3355 | if (p_temp) | |
3356 | p = p_temp; | |
3357 | else | |
3358 | /* Must be at the end. */ | |
3359 | break; | |
3360 | } | |
3361 | } | |
3362 | } | |
3363 | ||
409873ef SS |
3364 | /* Given a line of text defining a part of a tracepoint, parse it into |
3365 | an "uploaded tracepoint". */ | |
00bf0b85 SS |
3366 | |
3367 | void | |
3368 | parse_tracepoint_definition (char *line, struct uploaded_tp **utpp) | |
3369 | { | |
3370 | char *p; | |
3371 | char piece; | |
409873ef SS |
3372 | ULONGEST num, addr, step, pass, orig_size, xlen, start; |
3373 | int enabled, i, end; | |
00bf0b85 | 3374 | enum bptype type; |
409873ef | 3375 | char *cond, *srctype, *src, *buf; |
00bf0b85 SS |
3376 | struct uploaded_tp *utp = NULL; |
3377 | ||
3378 | p = line; | |
3379 | /* Both tracepoint and action definitions start with the same number | |
3380 | and address sequence. */ | |
3381 | piece = *p++; | |
3382 | p = unpack_varlen_hex (p, &num); | |
3383 | p++; /* skip a colon */ | |
3384 | p = unpack_varlen_hex (p, &addr); | |
3385 | p++; /* skip a colon */ | |
3386 | if (piece == 'T') | |
3387 | { | |
3388 | enabled = (*p++ == 'E'); | |
3389 | p++; /* skip a colon */ | |
3390 | p = unpack_varlen_hex (p, &step); | |
3391 | p++; /* skip a colon */ | |
3392 | p = unpack_varlen_hex (p, &pass); | |
3393 | type = bp_tracepoint; | |
3394 | cond = NULL; | |
3395 | /* Thumb through optional fields. */ | |
3396 | while (*p == ':') | |
3397 | { | |
3398 | p++; /* skip a colon */ | |
3399 | if (*p == 'F') | |
3400 | { | |
3401 | type = bp_fast_tracepoint; | |
3402 | p++; | |
3403 | p = unpack_varlen_hex (p, &orig_size); | |
3404 | } | |
3405 | else if (*p == 'X') | |
3406 | { | |
3407 | p++; | |
3408 | p = unpack_varlen_hex (p, &xlen); | |
3409 | p++; /* skip a comma */ | |
3410 | cond = (char *) xmalloc (2 * xlen + 1); | |
3411 | strncpy (cond, p, 2 * xlen); | |
3412 | cond[2 * xlen] = '\0'; | |
3413 | p += 2 * xlen; | |
3414 | } | |
3415 | else | |
409873ef | 3416 | warning (_("Unrecognized char '%c' in tracepoint definition, skipping rest"), *p); |
00bf0b85 SS |
3417 | } |
3418 | utp = get_uploaded_tp (num, addr, utpp); | |
3419 | utp->type = type; | |
3420 | utp->enabled = enabled; | |
3421 | utp->step = step; | |
3422 | utp->pass = pass; | |
3423 | utp->cond = cond; | |
3424 | } | |
3425 | else if (piece == 'A') | |
3426 | { | |
3427 | utp = get_uploaded_tp (num, addr, utpp); | |
3149d8c1 | 3428 | VEC_safe_push (char_ptr, utp->actions, xstrdup (p)); |
00bf0b85 SS |
3429 | } |
3430 | else if (piece == 'S') | |
3431 | { | |
3432 | utp = get_uploaded_tp (num, addr, utpp); | |
3149d8c1 | 3433 | VEC_safe_push (char_ptr, utp->step_actions, xstrdup (p)); |
00bf0b85 | 3434 | } |
409873ef SS |
3435 | else if (piece == 'Z') |
3436 | { | |
3437 | /* Parse a chunk of source form definition. */ | |
3438 | utp = get_uploaded_tp (num, addr, utpp); | |
3439 | srctype = p; | |
3440 | p = strchr (p, ':'); | |
3441 | p++; /* skip a colon */ | |
3442 | p = unpack_varlen_hex (p, &start); | |
3443 | p++; /* skip a colon */ | |
3444 | p = unpack_varlen_hex (p, &xlen); | |
3445 | p++; /* skip a colon */ | |
3446 | ||
3447 | buf = alloca (strlen (line)); | |
3448 | ||
3449 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3450 | buf[end] = '\0'; | |
3451 | ||
3452 | if (strncmp (srctype, "at:", strlen ("at:")) == 0) | |
3453 | utp->at_string = xstrdup (buf); | |
3454 | else if (strncmp (srctype, "cond:", strlen ("cond:")) == 0) | |
3455 | utp->cond_string = xstrdup (buf); | |
3456 | else if (strncmp (srctype, "cmd:", strlen ("cmd:")) == 0) | |
3149d8c1 | 3457 | VEC_safe_push (char_ptr, utp->cmd_strings, xstrdup (buf)); |
409873ef | 3458 | } |
00bf0b85 SS |
3459 | else |
3460 | { | |
409873ef SS |
3461 | /* Don't error out, the target might be sending us optional |
3462 | info that we don't care about. */ | |
3463 | warning (_("Unrecognized tracepoint piece '%c', ignoring"), piece); | |
00bf0b85 SS |
3464 | } |
3465 | } | |
3466 | ||
3467 | /* Convert a textual description of a trace state variable into an | |
3468 | uploaded object. */ | |
3469 | ||
3470 | void | |
3471 | parse_tsv_definition (char *line, struct uploaded_tsv **utsvp) | |
3472 | { | |
3473 | char *p, *buf; | |
3474 | ULONGEST num, initval, builtin; | |
3475 | int end; | |
3476 | struct uploaded_tsv *utsv = NULL; | |
3477 | ||
3478 | buf = alloca (strlen (line)); | |
3479 | ||
3480 | p = line; | |
3481 | p = unpack_varlen_hex (p, &num); | |
3482 | p++; /* skip a colon */ | |
3483 | p = unpack_varlen_hex (p, &initval); | |
3484 | p++; /* skip a colon */ | |
3485 | p = unpack_varlen_hex (p, &builtin); | |
3486 | p++; /* skip a colon */ | |
3487 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3488 | buf[end] = '\0'; | |
3489 | ||
3490 | utsv = get_uploaded_tsv (num, utsvp); | |
3491 | utsv->initial_value = initval; | |
3492 | utsv->builtin = builtin; | |
3493 | utsv->name = xstrdup (buf); | |
3494 | } | |
3495 | ||
3496 | /* Close the trace file and generally clean up. */ | |
3497 | ||
3498 | static void | |
3499 | tfile_close (int quitting) | |
3500 | { | |
3501 | int pid; | |
3502 | ||
3503 | if (trace_fd < 0) | |
3504 | return; | |
3505 | ||
3506 | pid = ptid_get_pid (inferior_ptid); | |
3507 | inferior_ptid = null_ptid; /* Avoid confusion from thread stuff */ | |
3508 | exit_inferior_silent (pid); | |
3509 | ||
3510 | close (trace_fd); | |
3511 | trace_fd = -1; | |
98e03262 SS |
3512 | if (trace_filename) |
3513 | xfree (trace_filename); | |
00bf0b85 SS |
3514 | } |
3515 | ||
3516 | static void | |
3517 | tfile_files_info (struct target_ops *t) | |
3518 | { | |
3519 | /* (it would be useful to mention the name of the file) */ | |
3520 | printf_filtered ("Looking at a trace file.\n"); | |
3521 | } | |
3522 | ||
3523 | /* The trace status for a file is that tracing can never be run. */ | |
3524 | ||
3525 | static int | |
3526 | tfile_get_trace_status (struct trace_status *ts) | |
3527 | { | |
3528 | /* Other bits of trace status were collected as part of opening the | |
3529 | trace files, so nothing to do here. */ | |
3530 | ||
3531 | return -1; | |
3532 | } | |
3533 | ||
3534 | /* Given the position of a traceframe in the file, figure out what | |
3535 | address the frame was collected at. This would normally be the | |
3536 | value of a collected PC register, but if not available, we | |
3537 | improvise. */ | |
3538 | ||
3539 | static ULONGEST | |
3540 | tfile_get_traceframe_address (off_t tframe_offset) | |
3541 | { | |
3542 | ULONGEST addr = 0; | |
3543 | short tpnum; | |
3544 | struct breakpoint *tp; | |
3545 | off_t saved_offset = cur_offset; | |
98e03262 | 3546 | int gotten; |
00bf0b85 SS |
3547 | |
3548 | /* FIXME dig pc out of collected registers */ | |
3549 | ||
3550 | /* Fall back to using tracepoint address. */ | |
3551 | lseek (trace_fd, tframe_offset, SEEK_SET); | |
98e03262 SS |
3552 | gotten = read (trace_fd, &tpnum, 2); |
3553 | if (gotten < 0) | |
3554 | perror_with_name (trace_filename); | |
3555 | else if (gotten < 2) | |
3556 | error (_("Premature end of file while reading trace file")); | |
3557 | ||
00bf0b85 | 3558 | tp = get_tracepoint_by_number_on_target (tpnum); |
9355b391 | 3559 | /* FIXME this is a poor heuristic if multiple locations */ |
00bf0b85 SS |
3560 | if (tp && tp->loc) |
3561 | addr = tp->loc->address; | |
3562 | ||
3563 | /* Restore our seek position. */ | |
3564 | cur_offset = saved_offset; | |
3565 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3566 | return addr; | |
3567 | } | |
3568 | ||
3569 | /* Given a type of search and some parameters, scan the collection of | |
3570 | traceframes in the file looking for a match. When found, return | |
3571 | both the traceframe and tracepoint number, otherwise -1 for | |
3572 | each. */ | |
3573 | ||
3574 | static int | |
3575 | tfile_trace_find (enum trace_find_type type, int num, | |
3576 | ULONGEST addr1, ULONGEST addr2, int *tpp) | |
3577 | { | |
3578 | short tpnum; | |
98e03262 | 3579 | int tfnum = 0, found = 0, gotten; |
00bf0b85 SS |
3580 | int data_size; |
3581 | struct breakpoint *tp; | |
3582 | off_t offset, tframe_offset; | |
3583 | ULONGEST tfaddr; | |
3584 | ||
3585 | lseek (trace_fd, trace_frames_offset, SEEK_SET); | |
3586 | offset = trace_frames_offset; | |
3587 | while (1) | |
3588 | { | |
3589 | tframe_offset = offset; | |
98e03262 SS |
3590 | gotten = read (trace_fd, &tpnum, 2); |
3591 | if (gotten < 0) | |
3592 | perror_with_name (trace_filename); | |
3593 | else if (gotten < 2) | |
3594 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3595 | offset += 2; |
3596 | if (tpnum == 0) | |
3597 | break; | |
98e03262 SS |
3598 | gotten = read (trace_fd, &data_size, 4); |
3599 | if (gotten < 0) | |
3600 | perror_with_name (trace_filename); | |
3601 | else if (gotten < 4) | |
3602 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3603 | offset += 4; |
3604 | switch (type) | |
3605 | { | |
3606 | case tfind_number: | |
3607 | if (tfnum == num) | |
3608 | found = 1; | |
3609 | break; | |
3610 | case tfind_pc: | |
3611 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3612 | if (tfaddr == addr1) | |
3613 | found = 1; | |
3614 | break; | |
3615 | case tfind_tp: | |
3616 | tp = get_tracepoint (num); | |
3617 | if (tp && tpnum == tp->number_on_target) | |
3618 | found = 1; | |
3619 | break; | |
3620 | case tfind_range: | |
3621 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3622 | if (addr1 <= tfaddr && tfaddr <= addr2) | |
3623 | found = 1; | |
3624 | break; | |
3625 | case tfind_outside: | |
3626 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3627 | if (!(addr1 <= tfaddr && tfaddr <= addr2)) | |
3628 | found = 1; | |
3629 | break; | |
3630 | default: | |
3631 | internal_error (__FILE__, __LINE__, _("unknown tfind type")); | |
3632 | } | |
3633 | if (found) | |
3634 | { | |
00bf0b85 SS |
3635 | if (tpp) |
3636 | *tpp = tpnum; | |
3637 | cur_offset = offset; | |
3638 | cur_data_size = data_size; | |
3639 | return tfnum; | |
3640 | } | |
3641 | /* Skip past the traceframe's data. */ | |
3642 | lseek (trace_fd, data_size, SEEK_CUR); | |
3643 | offset += data_size; | |
3644 | /* Update our own count of traceframes. */ | |
3645 | ++tfnum; | |
3646 | } | |
3647 | /* Did not find what we were looking for. */ | |
3648 | if (tpp) | |
3649 | *tpp = -1; | |
3650 | return -1; | |
3651 | } | |
3652 | ||
3653 | /* Look for a block of saved registers in the traceframe, and get the | |
3654 | requested register from it. */ | |
3655 | ||
3656 | static void | |
3657 | tfile_fetch_registers (struct target_ops *ops, | |
3658 | struct regcache *regcache, int regno) | |
3659 | { | |
3660 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
3661 | char block_type; | |
af54718e | 3662 | int i, pos, offset, regn, regsize, gotten, pc_regno; |
00bf0b85 SS |
3663 | unsigned short mlen; |
3664 | char *regs; | |
3665 | ||
3666 | /* An uninitialized reg size says we're not going to be | |
3667 | successful at getting register blocks. */ | |
3668 | if (!trace_regblock_size) | |
3669 | return; | |
3670 | ||
3671 | regs = alloca (trace_regblock_size); | |
3672 | ||
3673 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3674 | pos = 0; | |
3675 | while (pos < cur_data_size) | |
3676 | { | |
98e03262 SS |
3677 | gotten = read (trace_fd, &block_type, 1); |
3678 | if (gotten < 0) | |
3679 | perror_with_name (trace_filename); | |
3680 | else if (gotten < 1) | |
3681 | error (_("Premature end of file while reading trace file")); | |
3682 | ||
00bf0b85 SS |
3683 | ++pos; |
3684 | switch (block_type) | |
3685 | { | |
3686 | case 'R': | |
98e03262 SS |
3687 | gotten = read (trace_fd, regs, trace_regblock_size); |
3688 | if (gotten < 0) | |
3689 | perror_with_name (trace_filename); | |
3690 | else if (gotten < trace_regblock_size) | |
3691 | error (_("Premature end of file while reading trace file")); | |
3692 | ||
00bf0b85 SS |
3693 | /* Assume the block is laid out in GDB register number order, |
3694 | each register with the size that it has in GDB. */ | |
3695 | offset = 0; | |
3696 | for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++) | |
3697 | { | |
3698 | regsize = register_size (gdbarch, regn); | |
3699 | /* Make sure we stay within block bounds. */ | |
3700 | if (offset + regsize >= trace_regblock_size) | |
3701 | break; | |
3702 | if (!regcache_valid_p (regcache, regn)) | |
3703 | { | |
3704 | if (regno == regn) | |
3705 | { | |
3706 | regcache_raw_supply (regcache, regno, regs + offset); | |
3707 | break; | |
3708 | } | |
3709 | else if (regno == -1) | |
3710 | { | |
3711 | regcache_raw_supply (regcache, regn, regs + offset); | |
3712 | } | |
3713 | } | |
3714 | offset += regsize; | |
3715 | } | |
3716 | return; | |
3717 | case 'M': | |
3718 | lseek (trace_fd, 8, SEEK_CUR); | |
98e03262 SS |
3719 | gotten = read (trace_fd, &mlen, 2); |
3720 | if (gotten < 0) | |
3721 | perror_with_name (trace_filename); | |
3722 | else if (gotten < 2) | |
3723 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3724 | lseek (trace_fd, mlen, SEEK_CUR); |
3725 | pos += (8 + 2 + mlen); | |
3726 | break; | |
3727 | case 'V': | |
3728 | lseek (trace_fd, 4 + 8, SEEK_CUR); | |
3729 | pos += (4 + 8); | |
3730 | break; | |
3731 | default: | |
3732 | error ("Unknown block type '%c' (0x%x) in trace frame", | |
3733 | block_type, block_type); | |
3734 | break; | |
3735 | } | |
3736 | } | |
af54718e SS |
3737 | |
3738 | /* We get here if no register data has been found. Although we | |
3739 | don't like making up numbers, GDB has all manner of troubles when | |
3740 | the target says some register is not available. Filling in with | |
3741 | zeroes is a reasonable fallback. */ | |
3742 | for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++) | |
3743 | regcache_raw_supply (regcache, regn, NULL); | |
3744 | ||
3745 | /* We can often usefully guess that the PC is going to be the same | |
3746 | as the address of the tracepoint. */ | |
3747 | pc_regno = gdbarch_pc_regnum (gdbarch); | |
3748 | if (pc_regno >= 0 && (regno == -1 || regno == pc_regno)) | |
3749 | { | |
3750 | struct breakpoint *tp = get_tracepoint (tracepoint_number); | |
3751 | ||
3752 | if (tp && tp->loc) | |
3753 | { | |
3754 | /* But don't try to guess if tracepoint is multi-location... */ | |
3755 | if (tp->loc->next) | |
3756 | { | |
3757 | warning ("Tracepoint %d has multiple locations, cannot infer $pc", | |
3758 | tp->number); | |
3759 | return; | |
3760 | } | |
3761 | /* ... or does while-stepping. */ | |
3762 | if (tp->step_count > 0) | |
3763 | { | |
3764 | warning ("Tracepoint %d does while-stepping, cannot infer $pc", | |
3765 | tp->number); | |
3766 | return; | |
3767 | } | |
3768 | ||
3769 | store_unsigned_integer (regs, register_size (gdbarch, pc_regno), | |
3770 | gdbarch_byte_order (gdbarch), | |
3771 | tp->loc->address); | |
3772 | regcache_raw_supply (regcache, pc_regno, regs); | |
3773 | } | |
3774 | } | |
00bf0b85 SS |
3775 | } |
3776 | ||
3777 | static LONGEST | |
3778 | tfile_xfer_partial (struct target_ops *ops, enum target_object object, | |
3779 | const char *annex, gdb_byte *readbuf, | |
3780 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
3781 | { | |
3782 | char block_type; | |
98e03262 | 3783 | int pos, gotten; |
fce3c1f0 | 3784 | ULONGEST maddr, amt; |
00bf0b85 SS |
3785 | unsigned short mlen; |
3786 | ||
3787 | /* We're only doing regular memory for now. */ | |
3788 | if (object != TARGET_OBJECT_MEMORY) | |
3789 | return -1; | |
3790 | ||
3791 | if (readbuf == NULL) | |
3792 | error ("tfile_xfer_partial: trace file is read-only"); | |
3793 | ||
3794 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3795 | pos = 0; | |
3796 | while (pos < cur_data_size) | |
3797 | { | |
98e03262 SS |
3798 | gotten = read (trace_fd, &block_type, 1); |
3799 | if (gotten < 0) | |
3800 | perror_with_name (trace_filename); | |
3801 | else if (gotten < 1) | |
3802 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3803 | ++pos; |
3804 | switch (block_type) | |
3805 | { | |
3806 | case 'R': | |
3807 | lseek (trace_fd, trace_regblock_size, SEEK_CUR); | |
3808 | pos += trace_regblock_size; | |
3809 | break; | |
3810 | case 'M': | |
98e03262 SS |
3811 | gotten = read (trace_fd, &maddr, 8); |
3812 | if (gotten < 0) | |
3813 | perror_with_name (trace_filename); | |
3814 | else if (gotten < 8) | |
3815 | error (_("Premature end of file while reading trace file")); | |
3816 | ||
3817 | gotten = read (trace_fd, &mlen, 2); | |
3818 | if (gotten < 0) | |
3819 | perror_with_name (trace_filename); | |
3820 | else if (gotten < 2) | |
3821 | error (_("Premature end of file while reading trace file")); | |
fce3c1f0 SS |
3822 | /* If the block includes the first part of the desired |
3823 | range, return as much it has; GDB will re-request the | |
3824 | remainder, which might be in a different block of this | |
3825 | trace frame. */ | |
3826 | if (maddr <= offset && offset < (maddr + mlen)) | |
3827 | { | |
3828 | amt = (maddr + mlen) - offset; | |
3829 | if (amt > len) | |
3830 | amt = len; | |
3831 | ||
3832 | read (trace_fd, readbuf, amt); | |
3833 | return amt; | |
3834 | } | |
00bf0b85 SS |
3835 | lseek (trace_fd, mlen, SEEK_CUR); |
3836 | pos += (8 + 2 + mlen); | |
3837 | break; | |
3838 | case 'V': | |
3839 | lseek (trace_fd, 4 + 8, SEEK_CUR); | |
3840 | pos += (4 + 8); | |
3841 | break; | |
3842 | default: | |
3843 | error ("Unknown block type '%c' (0x%x) in traceframe", | |
3844 | block_type, block_type); | |
3845 | break; | |
3846 | } | |
3847 | } | |
fce3c1f0 SS |
3848 | |
3849 | /* It's unduly pedantic to refuse to look at the executable for | |
3850 | read-only pieces; so do the equivalent of readonly regions aka | |
3851 | QTro packet. */ | |
3852 | /* FIXME account for relocation at some point */ | |
3853 | if (exec_bfd) | |
3854 | { | |
3855 | asection *s; | |
3856 | bfd_size_type size; | |
3857 | bfd_vma lma; | |
3858 | ||
3859 | for (s = exec_bfd->sections; s; s = s->next) | |
3860 | { | |
3861 | if ((s->flags & SEC_LOAD) == 0 || | |
3862 | (s->flags & SEC_READONLY) == 0) | |
3863 | continue; | |
3864 | ||
3865 | lma = s->lma; | |
3866 | size = bfd_get_section_size (s); | |
3867 | if (lma <= offset && offset < (lma + size)) | |
3868 | { | |
3869 | amt = (lma + size) - offset; | |
3870 | if (amt > len) | |
3871 | amt = len; | |
3872 | ||
3873 | amt = bfd_get_section_contents (exec_bfd, s, | |
3874 | readbuf, offset - lma, amt); | |
3875 | return amt; | |
3876 | } | |
3877 | } | |
3878 | } | |
3879 | ||
00bf0b85 SS |
3880 | /* Indicate failure to find the requested memory block. */ |
3881 | return -1; | |
3882 | } | |
3883 | ||
3884 | /* Iterate through the blocks of a trace frame, looking for a 'V' | |
3885 | block with a matching tsv number. */ | |
3886 | ||
3887 | static int | |
3888 | tfile_get_trace_state_variable_value (int tsvnum, LONGEST *val) | |
3889 | { | |
3890 | char block_type; | |
98e03262 | 3891 | int pos, vnum, gotten; |
00bf0b85 SS |
3892 | unsigned short mlen; |
3893 | ||
3894 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3895 | pos = 0; | |
3896 | while (pos < cur_data_size) | |
3897 | { | |
98e03262 SS |
3898 | gotten = read (trace_fd, &block_type, 1); |
3899 | if (gotten < 0) | |
3900 | perror_with_name (trace_filename); | |
3901 | else if (gotten < 1) | |
3902 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3903 | ++pos; |
3904 | switch (block_type) | |
3905 | { | |
3906 | case 'R': | |
3907 | lseek (trace_fd, trace_regblock_size, SEEK_CUR); | |
3908 | pos += trace_regblock_size; | |
3909 | break; | |
3910 | case 'M': | |
3911 | lseek (trace_fd, 8, SEEK_CUR); | |
98e03262 SS |
3912 | gotten = read (trace_fd, &mlen, 2); |
3913 | if (gotten < 0) | |
3914 | perror_with_name (trace_filename); | |
3915 | else if (gotten < 2) | |
3916 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3917 | lseek (trace_fd, mlen, SEEK_CUR); |
3918 | pos += (8 + 2 + mlen); | |
3919 | break; | |
3920 | case 'V': | |
98e03262 SS |
3921 | gotten = read (trace_fd, &vnum, 4); |
3922 | if (gotten < 0) | |
3923 | perror_with_name (trace_filename); | |
3924 | else if (gotten < 4) | |
3925 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3926 | if (tsvnum == vnum) |
3927 | { | |
98e03262 SS |
3928 | gotten = read (trace_fd, val, 8); |
3929 | if (gotten < 0) | |
3930 | perror_with_name (trace_filename); | |
3931 | else if (gotten < 8) | |
3932 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3933 | return 1; |
3934 | } | |
3935 | lseek (trace_fd, 8, SEEK_CUR); | |
3936 | pos += (4 + 8); | |
3937 | break; | |
3938 | default: | |
3939 | error ("Unknown block type '%c' (0x%x) in traceframe", | |
3940 | block_type, block_type); | |
3941 | break; | |
3942 | } | |
3943 | } | |
3944 | /* Didn't find anything. */ | |
3945 | return 0; | |
3946 | } | |
3947 | ||
fce3c1f0 SS |
3948 | static int |
3949 | tfile_has_all_memory (struct target_ops *ops) | |
3950 | { | |
3951 | return 1; | |
3952 | } | |
3953 | ||
00bf0b85 SS |
3954 | static int |
3955 | tfile_has_memory (struct target_ops *ops) | |
3956 | { | |
3957 | return 1; | |
3958 | } | |
3959 | ||
3960 | static int | |
3961 | tfile_has_stack (struct target_ops *ops) | |
3962 | { | |
3963 | return 1; | |
3964 | } | |
3965 | ||
3966 | static int | |
3967 | tfile_has_registers (struct target_ops *ops) | |
3968 | { | |
3969 | return 1; | |
3970 | } | |
3971 | ||
3972 | static void | |
3973 | init_tfile_ops (void) | |
3974 | { | |
3975 | tfile_ops.to_shortname = "tfile"; | |
3976 | tfile_ops.to_longname = "Local trace dump file"; | |
3977 | tfile_ops.to_doc = | |
3978 | "Use a trace file as a target. Specify the filename of the trace file."; | |
3979 | tfile_ops.to_open = tfile_open; | |
3980 | tfile_ops.to_close = tfile_close; | |
3981 | tfile_ops.to_fetch_registers = tfile_fetch_registers; | |
3982 | tfile_ops.to_xfer_partial = tfile_xfer_partial; | |
3983 | tfile_ops.to_files_info = tfile_files_info; | |
3984 | tfile_ops.to_get_trace_status = tfile_get_trace_status; | |
3985 | tfile_ops.to_trace_find = tfile_trace_find; | |
3986 | tfile_ops.to_get_trace_state_variable_value = tfile_get_trace_state_variable_value; | |
3987 | /* core_stratum might seem more logical, but GDB doesn't like having | |
3988 | more than one core_stratum vector. */ | |
3989 | tfile_ops.to_stratum = process_stratum; | |
fce3c1f0 | 3990 | tfile_ops.to_has_all_memory = tfile_has_all_memory; |
00bf0b85 SS |
3991 | tfile_ops.to_has_memory = tfile_has_memory; |
3992 | tfile_ops.to_has_stack = tfile_has_stack; | |
3993 | tfile_ops.to_has_registers = tfile_has_registers; | |
3994 | tfile_ops.to_magic = OPS_MAGIC; | |
3995 | } | |
3996 | ||
c906108c SS |
3997 | /* module initialization */ |
3998 | void | |
fba45db2 | 3999 | _initialize_tracepoint (void) |
c906108c | 4000 | { |
fa58ee11 EZ |
4001 | struct cmd_list_element *c; |
4002 | ||
c906108c SS |
4003 | traceframe_number = -1; |
4004 | tracepoint_number = -1; | |
4005 | ||
c906108c SS |
4006 | if (tracepoint_list.list == NULL) |
4007 | { | |
4008 | tracepoint_list.listsize = 128; | |
c5aa993b | 4009 | tracepoint_list.list = xmalloc |
c906108c SS |
4010 | (tracepoint_list.listsize * sizeof (struct memrange)); |
4011 | } | |
4012 | if (tracepoint_list.aexpr_list == NULL) | |
4013 | { | |
4014 | tracepoint_list.aexpr_listsize = 128; | |
4015 | tracepoint_list.aexpr_list = xmalloc | |
4016 | (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
4017 | } | |
4018 | ||
4019 | if (stepping_list.list == NULL) | |
4020 | { | |
4021 | stepping_list.listsize = 128; | |
c5aa993b | 4022 | stepping_list.list = xmalloc |
c906108c SS |
4023 | (stepping_list.listsize * sizeof (struct memrange)); |
4024 | } | |
4025 | ||
4026 | if (stepping_list.aexpr_list == NULL) | |
4027 | { | |
4028 | stepping_list.aexpr_listsize = 128; | |
4029 | stepping_list.aexpr_list = xmalloc | |
4030 | (stepping_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
4031 | } | |
4032 | ||
c5aa993b | 4033 | add_info ("scope", scope_info, |
1bedd215 | 4034 | _("List the variables local to a scope")); |
c906108c | 4035 | |
e00d1dc8 | 4036 | add_cmd ("tracepoints", class_trace, NULL, |
1a966eab | 4037 | _("Tracing of program execution without stopping the program."), |
c906108c SS |
4038 | &cmdlist); |
4039 | ||
c5aa993b | 4040 | add_com ("tdump", class_trace, trace_dump_command, |
1bedd215 | 4041 | _("Print everything collected at the current tracepoint.")); |
c906108c | 4042 | |
00bf0b85 SS |
4043 | add_com ("tsave", class_trace, trace_save_command, _("\ |
4044 | Save the trace data to a file.\n\ | |
4045 | Use the '-r' option to direct the target to save directly to the file,\n\ | |
4046 | using its own filesystem.")); | |
4047 | ||
f61e138d SS |
4048 | c = add_com ("tvariable", class_trace, trace_variable_command,_("\ |
4049 | Define a trace state variable.\n\ | |
4050 | Argument is a $-prefixed name, optionally followed\n\ | |
4051 | by '=' and an expression that sets the initial value\n\ | |
4052 | at the start of tracing.")); | |
4053 | set_cmd_completer (c, expression_completer); | |
4054 | ||
4055 | add_cmd ("tvariable", class_trace, delete_trace_variable_command, _("\ | |
4056 | Delete one or more trace state variables.\n\ | |
4057 | Arguments are the names of the variables to delete.\n\ | |
4058 | If no arguments are supplied, delete all variables."), &deletelist); | |
4059 | /* FIXME add a trace variable completer */ | |
4060 | ||
4061 | add_info ("tvariables", tvariables_info, _("\ | |
4062 | Status of trace state variables and their values.\n\ | |
4063 | ")); | |
4064 | ||
1bedd215 AC |
4065 | add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\ |
4066 | Select a trace frame;\n\ | |
4067 | No argument means forward by one frame; '-' means backward by one frame."), | |
c906108c SS |
4068 | &tfindlist, "tfind ", 1, &cmdlist); |
4069 | ||
1a966eab | 4070 | add_cmd ("outside", class_trace, trace_find_outside_command, _("\ |
081dfbf7 | 4071 | Select a trace frame whose PC is outside the given range (exclusive).\n\ |
1a966eab | 4072 | Usage: tfind outside addr1, addr2"), |
c906108c SS |
4073 | &tfindlist); |
4074 | ||
1a966eab | 4075 | add_cmd ("range", class_trace, trace_find_range_command, _("\ |
081dfbf7 | 4076 | Select a trace frame whose PC is in the given range (inclusive).\n\ |
1a966eab | 4077 | Usage: tfind range addr1,addr2"), |
c906108c SS |
4078 | &tfindlist); |
4079 | ||
1a966eab AC |
4080 | add_cmd ("line", class_trace, trace_find_line_command, _("\ |
4081 | Select a trace frame by source line.\n\ | |
c906108c SS |
4082 | Argument can be a line number (with optional source file), \n\ |
4083 | a function name, or '*' followed by an address.\n\ | |
1a966eab | 4084 | Default argument is 'the next source line that was traced'."), |
c906108c SS |
4085 | &tfindlist); |
4086 | ||
1a966eab AC |
4087 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, _("\ |
4088 | Select a trace frame by tracepoint number.\n\ | |
4089 | Default is the tracepoint for the current trace frame."), | |
c906108c SS |
4090 | &tfindlist); |
4091 | ||
1a966eab AC |
4092 | add_cmd ("pc", class_trace, trace_find_pc_command, _("\ |
4093 | Select a trace frame by PC.\n\ | |
4094 | Default is the current PC, or the PC of the current trace frame."), | |
c906108c SS |
4095 | &tfindlist); |
4096 | ||
1a966eab AC |
4097 | add_cmd ("end", class_trace, trace_find_end_command, _("\ |
4098 | Synonym for 'none'.\n\ | |
4099 | De-select any trace frame and resume 'live' debugging."), | |
c906108c SS |
4100 | &tfindlist); |
4101 | ||
4102 | add_cmd ("none", class_trace, trace_find_none_command, | |
1a966eab | 4103 | _("De-select any trace frame and resume 'live' debugging."), |
c906108c SS |
4104 | &tfindlist); |
4105 | ||
4106 | add_cmd ("start", class_trace, trace_find_start_command, | |
1a966eab | 4107 | _("Select the first trace frame in the trace buffer."), |
c906108c SS |
4108 | &tfindlist); |
4109 | ||
c5aa993b | 4110 | add_com ("tstatus", class_trace, trace_status_command, |
1bedd215 | 4111 | _("Display the status of the current trace data collection.")); |
c906108c | 4112 | |
c5aa993b | 4113 | add_com ("tstop", class_trace, trace_stop_command, |
1bedd215 | 4114 | _("Stop trace data collection.")); |
c906108c SS |
4115 | |
4116 | add_com ("tstart", class_trace, trace_start_command, | |
1bedd215 | 4117 | _("Start trace data collection.")); |
c906108c | 4118 | |
1bedd215 AC |
4119 | add_com ("end", class_trace, end_actions_pseudocommand, _("\ |
4120 | Ends a list of commands or actions.\n\ | |
c906108c SS |
4121 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
4122 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
4123 | such a list.\n\n\ | |
1bedd215 | 4124 | Note: the \"end\" command cannot be used at the gdb prompt.")); |
c906108c | 4125 | |
1bedd215 AC |
4126 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, _("\ |
4127 | Specify single-stepping behavior at a tracepoint.\n\ | |
c906108c SS |
4128 | Argument is number of instructions to trace in single-step mode\n\ |
4129 | following the tracepoint. This command is normally followed by\n\ | |
4130 | one or more \"collect\" commands, to specify what to collect\n\ | |
4131 | while single-stepping.\n\n\ | |
1bedd215 | 4132 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 4133 | |
c5aa993b JM |
4134 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
4135 | add_com_alias ("stepping", "while-stepping", class_alias, 0); | |
c906108c | 4136 | |
1bedd215 AC |
4137 | add_com ("collect", class_trace, collect_pseudocommand, _("\ |
4138 | Specify one or more data items to be collected at a tracepoint.\n\ | |
c906108c SS |
4139 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
4140 | collect all data (variables, registers) referenced by that expression.\n\ | |
4141 | Also accepts the following special arguments:\n\ | |
4142 | $regs -- all registers.\n\ | |
4143 | $args -- all function arguments.\n\ | |
4144 | $locals -- all variables local to the block/function scope.\n\ | |
1bedd215 | 4145 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 4146 | |
6da95a67 SS |
4147 | add_com ("teval", class_trace, teval_pseudocommand, _("\ |
4148 | Specify one or more expressions to be evaluated at a tracepoint.\n\ | |
4149 | Accepts a comma-separated list of (one or more) expressions.\n\ | |
4150 | The result of each evaluation will be discarded.\n\ | |
4151 | Note: this command can only be used in a tracepoint \"actions\" list.")); | |
4152 | ||
1bedd215 AC |
4153 | add_com ("actions", class_trace, trace_actions_command, _("\ |
4154 | Specify the actions to be taken at a tracepoint.\n\ | |
c906108c SS |
4155 | Tracepoint actions may include collecting of specified data, \n\ |
4156 | single-stepping, or enabling/disabling other tracepoints, \n\ | |
1bedd215 | 4157 | depending on target's capabilities.")); |
c906108c | 4158 | |
236f1d4d SS |
4159 | default_collect = xstrdup (""); |
4160 | add_setshow_string_cmd ("default-collect", class_trace, | |
4161 | &default_collect, _("\ | |
4162 | Set the list of expressions to collect by default"), _("\ | |
4163 | Show the list of expressions to collect by default"), NULL, | |
4164 | NULL, NULL, | |
4165 | &setlist, &showlist); | |
4166 | ||
d5551862 SS |
4167 | add_setshow_boolean_cmd ("disconnected-tracing", no_class, |
4168 | &disconnected_tracing, _("\ | |
4169 | Set whether tracing continues after GDB disconnects."), _("\ | |
4170 | Show whether tracing continues after GDB disconnects."), _("\ | |
4171 | Use this to continue a tracing run even if GDB disconnects\n\ | |
4172 | or detaches from the target. You can reconnect later and look at\n\ | |
4173 | trace data collected in the meantime."), | |
4174 | set_disconnected_tracing, | |
4175 | NULL, | |
4176 | &setlist, | |
4177 | &showlist); | |
00bf0b85 | 4178 | |
4daf5ac0 SS |
4179 | add_setshow_boolean_cmd ("circular-trace-buffer", no_class, |
4180 | &circular_trace_buffer, _("\ | |
4181 | Set target's use of circular trace buffer."), _("\ | |
4182 | Show target's use of circular trace buffer."), _("\ | |
4183 | Use this to make the trace buffer into a circular buffer,\n\ | |
4184 | which will discard traceframes (oldest first) instead of filling\n\ | |
4185 | up and stopping the trace run."), | |
4186 | set_circular_trace_buffer, | |
4187 | NULL, | |
4188 | &setlist, | |
4189 | &showlist); | |
4190 | ||
00bf0b85 SS |
4191 | init_tfile_ops (); |
4192 | ||
4193 | add_target (&tfile_ops); | |
c906108c | 4194 | } |