Commit | Line | Data |
---|---|---|
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, |
7b6bb8da | 4 | 2007, 2008, 2009, 2010, 2011 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" |
176a6961 | 49 | #include "remote.h" |
0fb4aa4b | 50 | #include "source.h" |
c906108c SS |
51 | #include "ax.h" |
52 | #include "ax-gdb.h" | |
53 | ||
54 | /* readline include files */ | |
dbda9972 AC |
55 | #include "readline/readline.h" |
56 | #include "readline/history.h" | |
c906108c SS |
57 | |
58 | /* readline defines this. */ | |
59 | #undef savestring | |
60 | ||
61 | #ifdef HAVE_UNISTD_H | |
62 | #include <unistd.h> | |
63 | #endif | |
64 | ||
00bf0b85 SS |
65 | #ifndef O_LARGEFILE |
66 | #define O_LARGEFILE 0 | |
67 | #endif | |
68 | ||
69 | extern int hex2bin (const char *hex, gdb_byte *bin, int count); | |
70 | extern int bin2hex (const gdb_byte *bin, char *hex, int count); | |
71 | ||
d5551862 SS |
72 | extern void stop_tracing (); |
73 | ||
d183932d MS |
74 | /* Maximum length of an agent aexpression. |
75 | This accounts for the fact that packets are limited to 400 bytes | |
c906108c SS |
76 | (which includes everything -- including the checksum), and assumes |
77 | the worst case of maximum length for each of the pieces of a | |
78 | continuation packet. | |
c5aa993b | 79 | |
c906108c SS |
80 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
81 | large. (400 - 31)/2 == 184 */ | |
82 | #define MAX_AGENT_EXPR_LEN 184 | |
83 | ||
98c5b216 TT |
84 | /* A hook used to notify the UI of tracepoint operations. */ |
85 | ||
86 | void (*deprecated_trace_find_hook) (char *arg, int from_tty); | |
87 | void (*deprecated_trace_start_stop_hook) (int start, int from_tty); | |
c906108c | 88 | |
9a4105ab AC |
89 | extern void (*deprecated_readline_begin_hook) (char *, ...); |
90 | extern char *(*deprecated_readline_hook) (char *); | |
91 | extern void (*deprecated_readline_end_hook) (void); | |
c906108c | 92 | |
104c1213 JM |
93 | /* GDB commands implemented in other modules: |
94 | */ | |
95 | ||
a14ed312 | 96 | extern void output_command (char *, int); |
104c1213 | 97 | |
c906108c SS |
98 | /* |
99 | Tracepoint.c: | |
100 | ||
101 | This module defines the following debugger commands: | |
102 | trace : set a tracepoint on a function, line, or address. | |
103 | info trace : list all debugger-defined tracepoints. | |
104 | delete trace : delete one or more tracepoints. | |
105 | enable trace : enable one or more tracepoints. | |
106 | disable trace : disable one or more tracepoints. | |
107 | actions : specify actions to be taken at a tracepoint. | |
108 | passcount : specify a pass count for a tracepoint. | |
109 | tstart : start a trace experiment. | |
110 | tstop : stop a trace experiment. | |
111 | tstatus : query the status of a trace experiment. | |
112 | tfind : find a trace frame in the trace buffer. | |
113 | tdump : print everything collected at the current tracepoint. | |
114 | save-tracepoints : write tracepoint setup into a file. | |
115 | ||
116 | This module defines the following user-visible debugger variables: | |
117 | $trace_frame : sequence number of trace frame currently being debugged. | |
118 | $trace_line : source line of trace frame currently being debugged. | |
119 | $trace_file : source file of trace frame currently being debugged. | |
120 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
c5aa993b | 121 | */ |
c906108c SS |
122 | |
123 | ||
124 | /* ======= Important global variables: ======= */ | |
125 | ||
f61e138d SS |
126 | /* The list of all trace state variables. We don't retain pointers to |
127 | any of these for any reason - API is by name or number only - so it | |
128 | works to have a vector of objects. */ | |
129 | ||
130 | typedef struct trace_state_variable tsv_s; | |
131 | DEF_VEC_O(tsv_s); | |
132 | ||
133 | static VEC(tsv_s) *tvariables; | |
134 | ||
135 | /* The next integer to assign to a variable. */ | |
136 | ||
137 | static int next_tsv_number = 1; | |
138 | ||
c906108c SS |
139 | /* Number of last traceframe collected. */ |
140 | static int traceframe_number; | |
141 | ||
142 | /* Tracepoint for last traceframe collected. */ | |
143 | static int tracepoint_number; | |
144 | ||
145 | /* Symbol for function for last traceframe collected */ | |
146 | static struct symbol *traceframe_fun; | |
147 | ||
148 | /* Symtab and line for last traceframe collected */ | |
149 | static struct symtab_and_line traceframe_sal; | |
150 | ||
151 | /* Tracing command lists */ | |
152 | static struct cmd_list_element *tfindlist; | |
153 | ||
236f1d4d | 154 | /* List of expressions to collect by default at each tracepoint hit. */ |
35b1e5cc | 155 | char *default_collect = ""; |
236f1d4d | 156 | |
d5551862 SS |
157 | static int disconnected_tracing; |
158 | ||
4daf5ac0 SS |
159 | /* This variable controls whether we ask the target for a linear or |
160 | circular trace buffer. */ | |
161 | ||
162 | static int circular_trace_buffer; | |
163 | ||
c906108c | 164 | /* ======= Important command functions: ======= */ |
a14ed312 KB |
165 | static void trace_actions_command (char *, int); |
166 | static void trace_start_command (char *, int); | |
167 | static void trace_stop_command (char *, int); | |
168 | static void trace_status_command (char *, int); | |
169 | static void trace_find_command (char *, int); | |
170 | static void trace_find_pc_command (char *, int); | |
171 | static void trace_find_tracepoint_command (char *, int); | |
172 | static void trace_find_line_command (char *, int); | |
173 | static void trace_find_range_command (char *, int); | |
174 | static void trace_find_outside_command (char *, int); | |
a14ed312 | 175 | static void trace_dump_command (char *, int); |
c906108c SS |
176 | |
177 | /* support routines */ | |
c906108c SS |
178 | |
179 | struct collection_list; | |
a14ed312 | 180 | static void add_aexpr (struct collection_list *, struct agent_expr *); |
47b667de | 181 | static char *mem2hex (gdb_byte *, char *, int); |
a14ed312 KB |
182 | static void add_register (struct collection_list *collection, |
183 | unsigned int regno); | |
392a587b | 184 | |
d5551862 SS |
185 | extern void send_disconnected_tracing_value (int value); |
186 | ||
00bf0b85 SS |
187 | static void free_uploaded_tps (struct uploaded_tp **utpp); |
188 | static void free_uploaded_tsvs (struct uploaded_tsv **utsvp); | |
189 | ||
190 | ||
a14ed312 | 191 | extern void _initialize_tracepoint (void); |
c906108c | 192 | |
00bf0b85 SS |
193 | static struct trace_status trace_status; |
194 | ||
195 | char *stop_reason_names[] = { | |
196 | "tunknown", | |
197 | "tnotrun", | |
198 | "tstop", | |
199 | "tfull", | |
200 | "tdisconnected", | |
6c28cbf2 SS |
201 | "tpasscount", |
202 | "terror" | |
00bf0b85 SS |
203 | }; |
204 | ||
205 | struct trace_status * | |
206 | current_trace_status () | |
207 | { | |
208 | return &trace_status; | |
209 | } | |
210 | ||
c906108c SS |
211 | /* Set traceframe number to NUM. */ |
212 | static void | |
fba45db2 | 213 | set_traceframe_num (int num) |
c906108c SS |
214 | { |
215 | traceframe_number = num; | |
4fa62494 | 216 | set_internalvar_integer (lookup_internalvar ("trace_frame"), num); |
c906108c SS |
217 | } |
218 | ||
219 | /* Set tracepoint number to NUM. */ | |
220 | static void | |
fba45db2 | 221 | set_tracepoint_num (int num) |
c906108c SS |
222 | { |
223 | tracepoint_number = num; | |
4fa62494 | 224 | set_internalvar_integer (lookup_internalvar ("tracepoint"), num); |
c906108c SS |
225 | } |
226 | ||
227 | /* Set externally visible debug variables for querying/printing | |
228 | the traceframe context (line, function, file) */ | |
229 | ||
230 | static void | |
fb14de7b | 231 | set_traceframe_context (struct frame_info *trace_frame) |
c906108c | 232 | { |
fb14de7b UW |
233 | CORE_ADDR trace_pc; |
234 | ||
3e43a32a | 235 | if (trace_frame == NULL) /* Cease debugging any trace buffers. */ |
c906108c SS |
236 | { |
237 | traceframe_fun = 0; | |
238 | traceframe_sal.pc = traceframe_sal.line = 0; | |
239 | traceframe_sal.symtab = NULL; | |
4fa62494 UW |
240 | clear_internalvar (lookup_internalvar ("trace_func")); |
241 | clear_internalvar (lookup_internalvar ("trace_file")); | |
242 | set_internalvar_integer (lookup_internalvar ("trace_line"), -1); | |
c906108c SS |
243 | return; |
244 | } | |
245 | ||
d183932d | 246 | /* Save as globals for internal use. */ |
fb14de7b | 247 | trace_pc = get_frame_pc (trace_frame); |
c906108c SS |
248 | traceframe_sal = find_pc_line (trace_pc, 0); |
249 | traceframe_fun = find_pc_function (trace_pc); | |
250 | ||
d183932d MS |
251 | /* Save linenumber as "$trace_line", a debugger variable visible to |
252 | users. */ | |
4fa62494 UW |
253 | set_internalvar_integer (lookup_internalvar ("trace_line"), |
254 | traceframe_sal.line); | |
c906108c | 255 | |
d183932d MS |
256 | /* Save func name as "$trace_func", a debugger variable visible to |
257 | users. */ | |
4fa62494 UW |
258 | if (traceframe_fun == NULL |
259 | || SYMBOL_LINKAGE_NAME (traceframe_fun) == NULL) | |
260 | clear_internalvar (lookup_internalvar ("trace_func")); | |
c906108c | 261 | else |
78267919 UW |
262 | set_internalvar_string (lookup_internalvar ("trace_func"), |
263 | SYMBOL_LINKAGE_NAME (traceframe_fun)); | |
c906108c | 264 | |
d183932d MS |
265 | /* Save file name as "$trace_file", a debugger variable visible to |
266 | users. */ | |
4fa62494 UW |
267 | if (traceframe_sal.symtab == NULL |
268 | || traceframe_sal.symtab->filename == NULL) | |
269 | clear_internalvar (lookup_internalvar ("trace_file")); | |
c906108c | 270 | else |
78267919 UW |
271 | set_internalvar_string (lookup_internalvar ("trace_file"), |
272 | traceframe_sal.symtab->filename); | |
c906108c SS |
273 | } |
274 | ||
f61e138d SS |
275 | /* Create a new trace state variable with the given name. */ |
276 | ||
277 | struct trace_state_variable * | |
278 | create_trace_state_variable (const char *name) | |
279 | { | |
280 | struct trace_state_variable tsv; | |
281 | ||
282 | memset (&tsv, 0, sizeof (tsv)); | |
40e1c229 | 283 | tsv.name = xstrdup (name); |
f61e138d SS |
284 | tsv.number = next_tsv_number++; |
285 | return VEC_safe_push (tsv_s, tvariables, &tsv); | |
286 | } | |
287 | ||
288 | /* Look for a trace state variable of the given name. */ | |
289 | ||
290 | struct trace_state_variable * | |
291 | find_trace_state_variable (const char *name) | |
292 | { | |
293 | struct trace_state_variable *tsv; | |
294 | int ix; | |
295 | ||
296 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
297 | if (strcmp (name, tsv->name) == 0) | |
298 | return tsv; | |
299 | ||
300 | return NULL; | |
301 | } | |
302 | ||
303 | void | |
304 | delete_trace_state_variable (const char *name) | |
305 | { | |
306 | struct trace_state_variable *tsv; | |
307 | int ix; | |
308 | ||
309 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
310 | if (strcmp (name, tsv->name) == 0) | |
311 | { | |
40e1c229 | 312 | xfree ((void *)tsv->name); |
f61e138d SS |
313 | VEC_unordered_remove (tsv_s, tvariables, ix); |
314 | return; | |
315 | } | |
316 | ||
317 | warning (_("No trace variable named \"$%s\", not deleting"), name); | |
318 | } | |
319 | ||
320 | /* The 'tvariable' command collects a name and optional expression to | |
321 | evaluate into an initial value. */ | |
322 | ||
323 | void | |
324 | trace_variable_command (char *args, int from_tty) | |
325 | { | |
326 | struct expression *expr; | |
327 | struct cleanup *old_chain; | |
328 | struct internalvar *intvar = NULL; | |
329 | LONGEST initval = 0; | |
330 | struct trace_state_variable *tsv; | |
331 | ||
332 | if (!args || !*args) | |
333 | error_no_arg (_("trace state variable name")); | |
334 | ||
335 | /* All the possible valid arguments are expressions. */ | |
336 | expr = parse_expression (args); | |
337 | old_chain = make_cleanup (free_current_contents, &expr); | |
338 | ||
339 | if (expr->nelts == 0) | |
340 | error (_("No expression?")); | |
341 | ||
342 | /* Only allow two syntaxes; "$name" and "$name=value". */ | |
343 | if (expr->elts[0].opcode == OP_INTERNALVAR) | |
344 | { | |
345 | intvar = expr->elts[1].internalvar; | |
346 | } | |
347 | else if (expr->elts[0].opcode == BINOP_ASSIGN | |
348 | && expr->elts[1].opcode == OP_INTERNALVAR) | |
349 | { | |
350 | intvar = expr->elts[2].internalvar; | |
351 | initval = value_as_long (evaluate_subexpression_type (expr, 4)); | |
352 | } | |
353 | else | |
354 | error (_("Syntax must be $NAME [ = EXPR ]")); | |
355 | ||
356 | if (!intvar) | |
357 | error (_("No name given")); | |
358 | ||
359 | if (strlen (internalvar_name (intvar)) <= 0) | |
360 | error (_("Must supply a non-empty variable name")); | |
361 | ||
362 | /* If the variable already exists, just change its initial value. */ | |
363 | tsv = find_trace_state_variable (internalvar_name (intvar)); | |
364 | if (tsv) | |
365 | { | |
366 | tsv->initial_value = initval; | |
3e43a32a MS |
367 | printf_filtered (_("Trace state variable $%s " |
368 | "now has initial value %s.\n"), | |
f61e138d | 369 | tsv->name, plongest (tsv->initial_value)); |
f90824dc | 370 | do_cleanups (old_chain); |
f61e138d SS |
371 | return; |
372 | } | |
373 | ||
374 | /* Create a new variable. */ | |
375 | tsv = create_trace_state_variable (internalvar_name (intvar)); | |
376 | tsv->initial_value = initval; | |
377 | ||
3e43a32a MS |
378 | printf_filtered (_("Trace state variable $%s " |
379 | "created, with initial value %s.\n"), | |
f61e138d SS |
380 | tsv->name, plongest (tsv->initial_value)); |
381 | ||
382 | do_cleanups (old_chain); | |
383 | } | |
384 | ||
385 | void | |
386 | delete_trace_variable_command (char *args, int from_tty) | |
387 | { | |
2a2287c7 | 388 | int ix; |
f61e138d SS |
389 | char **argv; |
390 | struct cleanup *back_to; | |
f61e138d SS |
391 | |
392 | if (args == NULL) | |
393 | { | |
394 | if (query (_("Delete all trace state variables? "))) | |
395 | VEC_free (tsv_s, tvariables); | |
396 | dont_repeat (); | |
397 | return; | |
398 | } | |
399 | ||
400 | argv = gdb_buildargv (args); | |
401 | back_to = make_cleanup_freeargv (argv); | |
402 | ||
2a2287c7 | 403 | for (ix = 0; argv[ix] != NULL; ix++) |
f61e138d | 404 | { |
2a2287c7 MS |
405 | if (*argv[ix] == '$') |
406 | delete_trace_state_variable (argv[ix] + 1); | |
f61e138d | 407 | else |
2a2287c7 | 408 | warning (_("Name \"%s\" not prefixed with '$', ignoring"), argv[ix]); |
f61e138d SS |
409 | } |
410 | ||
411 | do_cleanups (back_to); | |
412 | ||
413 | dont_repeat (); | |
414 | } | |
415 | ||
40e1c229 VP |
416 | void |
417 | tvariables_info_1 (void) | |
f61e138d SS |
418 | { |
419 | struct trace_state_variable *tsv; | |
420 | int ix; | |
40e1c229 VP |
421 | int count = 0; |
422 | struct cleanup *back_to; | |
f61e138d | 423 | |
40e1c229 | 424 | if (VEC_length (tsv_s, tvariables) == 0 && !ui_out_is_mi_like_p (uiout)) |
f61e138d SS |
425 | { |
426 | printf_filtered (_("No trace state variables.\n")); | |
427 | return; | |
428 | } | |
429 | ||
35b1e5cc | 430 | /* Try to acquire values from the target. */ |
4baf5cf4 | 431 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix, ++count) |
35b1e5cc SS |
432 | tsv->value_known = target_get_trace_state_variable_value (tsv->number, |
433 | &(tsv->value)); | |
434 | ||
40e1c229 VP |
435 | back_to = make_cleanup_ui_out_table_begin_end (uiout, 3, |
436 | count, "trace-variables"); | |
437 | ui_out_table_header (uiout, 15, ui_left, "name", "Name"); | |
438 | ui_out_table_header (uiout, 11, ui_left, "initial", "Initial"); | |
439 | ui_out_table_header (uiout, 11, ui_left, "current", "Current"); | |
440 | ||
441 | ui_out_table_body (uiout); | |
f61e138d SS |
442 | |
443 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
444 | { | |
40e1c229 VP |
445 | struct cleanup *back_to2; |
446 | char *c; | |
447 | char *name; | |
448 | ||
449 | back_to2 = make_cleanup_ui_out_tuple_begin_end (uiout, "variable"); | |
450 | ||
c4f7c687 | 451 | name = concat ("$", tsv->name, (char *) NULL); |
40e1c229 VP |
452 | make_cleanup (xfree, name); |
453 | ui_out_field_string (uiout, "name", name); | |
454 | ui_out_field_string (uiout, "initial", plongest (tsv->initial_value)); | |
455 | ||
f61e138d | 456 | if (tsv->value_known) |
40e1c229 VP |
457 | c = plongest (tsv->value); |
458 | else if (ui_out_is_mi_like_p (uiout)) | |
459 | /* For MI, we prefer not to use magic string constants, but rather | |
460 | omit the field completely. The difference between unknown and | |
461 | undefined does not seem important enough to represent. */ | |
462 | c = NULL; | |
00bf0b85 | 463 | else if (current_trace_status ()->running || traceframe_number >= 0) |
f61e138d | 464 | /* The value is/was defined, but we don't have it. */ |
40e1c229 | 465 | c = "<unknown>"; |
f61e138d SS |
466 | else |
467 | /* It is not meaningful to ask about the value. */ | |
40e1c229 VP |
468 | c = "<undefined>"; |
469 | if (c) | |
470 | ui_out_field_string (uiout, "current", c); | |
471 | ui_out_text (uiout, "\n"); | |
472 | ||
473 | do_cleanups (back_to2); | |
f61e138d | 474 | } |
40e1c229 VP |
475 | |
476 | do_cleanups (back_to); | |
477 | } | |
478 | ||
479 | /* List all the trace state variables. */ | |
480 | ||
481 | static void | |
482 | tvariables_info (char *args, int from_tty) | |
483 | { | |
484 | tvariables_info_1 (); | |
f61e138d SS |
485 | } |
486 | ||
8bf6485c SS |
487 | /* Stash definitions of tsvs into the given file. */ |
488 | ||
489 | void | |
490 | save_trace_state_variables (struct ui_file *fp) | |
491 | { | |
492 | struct trace_state_variable *tsv; | |
493 | int ix; | |
494 | ||
495 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
496 | { | |
497 | fprintf_unfiltered (fp, "tvariable $%s", tsv->name); | |
498 | if (tsv->initial_value) | |
499 | fprintf_unfiltered (fp, " = %s", plongest (tsv->initial_value)); | |
500 | fprintf_unfiltered (fp, "\n"); | |
501 | } | |
502 | } | |
503 | ||
c906108c SS |
504 | /* ACTIONS functions: */ |
505 | ||
c906108c | 506 | /* The three functions: |
c5aa993b JM |
507 | collect_pseudocommand, |
508 | while_stepping_pseudocommand, and | |
509 | end_actions_pseudocommand | |
c906108c SS |
510 | are placeholders for "commands" that are actually ONLY to be used |
511 | within a tracepoint action list. If the actual function is ever called, | |
512 | it means that somebody issued the "command" at the top level, | |
513 | which is always an error. */ | |
514 | ||
1042e4c0 | 515 | void |
fba45db2 | 516 | end_actions_pseudocommand (char *args, int from_tty) |
c906108c | 517 | { |
8a3fe4f8 | 518 | error (_("This command cannot be used at the top level.")); |
c906108c SS |
519 | } |
520 | ||
1042e4c0 | 521 | void |
fba45db2 | 522 | while_stepping_pseudocommand (char *args, int from_tty) |
c906108c | 523 | { |
8a3fe4f8 | 524 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
525 | } |
526 | ||
527 | static void | |
fba45db2 | 528 | collect_pseudocommand (char *args, int from_tty) |
c906108c | 529 | { |
8a3fe4f8 | 530 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
531 | } |
532 | ||
6da95a67 SS |
533 | static void |
534 | teval_pseudocommand (char *args, int from_tty) | |
535 | { | |
536 | error (_("This command can only be used in a tracepoint actions list.")); | |
537 | } | |
538 | ||
c906108c SS |
539 | /* Enter a list of actions for a tracepoint. */ |
540 | static void | |
fba45db2 | 541 | trace_actions_command (char *args, int from_tty) |
c906108c | 542 | { |
1042e4c0 | 543 | struct breakpoint *t; |
a7bdde9e | 544 | struct command_line *l; |
c906108c | 545 | |
c2d11a7d | 546 | t = get_tracepoint_by_number (&args, 0, 1); |
7a292a7a | 547 | if (t) |
c906108c | 548 | { |
a7bdde9e VP |
549 | char *tmpbuf = |
550 | xstrprintf ("Enter actions for tracepoint %d, one per line.", | |
551 | t->number); | |
552 | struct cleanup *cleanups = make_cleanup (xfree, tmpbuf); | |
553 | ||
3e43a32a MS |
554 | l = read_command_lines (tmpbuf, from_tty, 1, |
555 | check_tracepoint_command, t); | |
a7bdde9e VP |
556 | do_cleanups (cleanups); |
557 | breakpoint_set_commands (t, l); | |
c906108c | 558 | } |
5c44784c | 559 | /* else just return */ |
c906108c SS |
560 | } |
561 | ||
fff87407 SS |
562 | /* Report the results of checking the agent expression, as errors or |
563 | internal errors. */ | |
564 | ||
565 | static void | |
35c9c7ba | 566 | report_agent_reqs_errors (struct agent_expr *aexpr) |
fff87407 SS |
567 | { |
568 | /* All of the "flaws" are serious bytecode generation issues that | |
569 | should never occur. */ | |
35c9c7ba | 570 | if (aexpr->flaw != agent_flaw_none) |
fff87407 SS |
571 | internal_error (__FILE__, __LINE__, _("expression is malformed")); |
572 | ||
573 | /* If analysis shows a stack underflow, GDB must have done something | |
574 | badly wrong in its bytecode generation. */ | |
35c9c7ba | 575 | if (aexpr->min_height < 0) |
fff87407 SS |
576 | internal_error (__FILE__, __LINE__, |
577 | _("expression has min height < 0")); | |
578 | ||
579 | /* Issue this error if the stack is predicted to get too deep. The | |
580 | limit is rather arbitrary; a better scheme might be for the | |
581 | target to report how much stack it will have available. The | |
582 | depth roughly corresponds to parenthesization, so a limit of 20 | |
583 | amounts to 20 levels of expression nesting, which is actually | |
584 | a pretty big hairy expression. */ | |
35c9c7ba | 585 | if (aexpr->max_height > 20) |
fff87407 SS |
586 | error (_("Expression is too complicated.")); |
587 | } | |
588 | ||
c906108c | 589 | /* worker function */ |
fff87407 | 590 | void |
1042e4c0 | 591 | validate_actionline (char **line, struct breakpoint *t) |
c906108c SS |
592 | { |
593 | struct cmd_list_element *c; | |
594 | struct expression *exp = NULL; | |
c906108c | 595 | struct cleanup *old_chain = NULL; |
9355b391 SS |
596 | char *p, *tmp_p; |
597 | struct bp_location *loc; | |
fff87407 | 598 | struct agent_expr *aexpr; |
c906108c | 599 | |
15255275 MS |
600 | /* if EOF is typed, *line is NULL */ |
601 | if (*line == NULL) | |
fff87407 | 602 | return; |
15255275 | 603 | |
104c1213 | 604 | for (p = *line; isspace ((int) *p);) |
c906108c SS |
605 | p++; |
606 | ||
d183932d MS |
607 | /* Symbol lookup etc. */ |
608 | if (*p == '\0') /* empty line: just prompt for another line. */ | |
fff87407 | 609 | return; |
c906108c | 610 | |
c5aa993b | 611 | if (*p == '#') /* comment line */ |
fff87407 | 612 | return; |
c906108c SS |
613 | |
614 | c = lookup_cmd (&p, cmdlist, "", -1, 1); | |
615 | if (c == 0) | |
fff87407 | 616 | error (_("`%s' is not a tracepoint action, or is ambiguous."), p); |
c5aa993b | 617 | |
bbaca940 | 618 | if (cmd_cfunc_eq (c, collect_pseudocommand)) |
c906108c | 619 | { |
c5aa993b JM |
620 | do |
621 | { /* repeat over a comma-separated list */ | |
622 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 623 | while (isspace ((int) *p)) |
c5aa993b | 624 | p++; |
c906108c | 625 | |
c5aa993b JM |
626 | if (*p == '$') /* look for special pseudo-symbols */ |
627 | { | |
0fb4aa4b PA |
628 | if (0 == strncasecmp ("reg", p + 1, 3) |
629 | || 0 == strncasecmp ("arg", p + 1, 3) | |
630 | || 0 == strncasecmp ("loc", p + 1, 3) | |
631 | || 0 == strncasecmp ("_sdata", p + 1, 6)) | |
c5aa993b JM |
632 | { |
633 | p = strchr (p, ','); | |
634 | continue; | |
635 | } | |
d183932d | 636 | /* else fall thru, treat p as an expression and parse it! */ |
c5aa993b | 637 | } |
9355b391 SS |
638 | tmp_p = p; |
639 | for (loc = t->loc; loc; loc = loc->next) | |
c5aa993b | 640 | { |
9355b391 SS |
641 | p = tmp_p; |
642 | exp = parse_exp_1 (&p, block_for_pc (loc->address), 1); | |
643 | old_chain = make_cleanup (free_current_contents, &exp); | |
644 | ||
645 | if (exp->elts[0].opcode == OP_VAR_VALUE) | |
c5aa993b | 646 | { |
9355b391 SS |
647 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) |
648 | { | |
3e43a32a MS |
649 | error (_("constant `%s' (value %ld) " |
650 | "will not be collected."), | |
fff87407 SS |
651 | SYMBOL_PRINT_NAME (exp->elts[2].symbol), |
652 | SYMBOL_VALUE (exp->elts[2].symbol)); | |
9355b391 | 653 | } |
3e43a32a MS |
654 | else if (SYMBOL_CLASS (exp->elts[2].symbol) |
655 | == LOC_OPTIMIZED_OUT) | |
9355b391 | 656 | { |
3e43a32a MS |
657 | error (_("`%s' is optimized away " |
658 | "and cannot be collected."), | |
fff87407 | 659 | SYMBOL_PRINT_NAME (exp->elts[2].symbol)); |
9355b391 | 660 | } |
c5aa993b | 661 | } |
c906108c | 662 | |
9355b391 SS |
663 | /* We have something to collect, make sure that the expr to |
664 | bytecode translator can handle it and that it's not too | |
665 | long. */ | |
666 | aexpr = gen_trace_for_expr (loc->address, exp); | |
667 | make_cleanup_free_agent_expr (aexpr); | |
c906108c | 668 | |
9355b391 | 669 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
fff87407 | 670 | error (_("Expression is too complicated.")); |
c906108c | 671 | |
35c9c7ba | 672 | ax_reqs (aexpr); |
c906108c | 673 | |
35c9c7ba | 674 | report_agent_reqs_errors (aexpr); |
c906108c | 675 | |
9355b391 SS |
676 | do_cleanups (old_chain); |
677 | } | |
c5aa993b JM |
678 | } |
679 | while (p && *p++ == ','); | |
c906108c | 680 | } |
fff87407 | 681 | |
6da95a67 SS |
682 | else if (cmd_cfunc_eq (c, teval_pseudocommand)) |
683 | { | |
6da95a67 SS |
684 | do |
685 | { /* repeat over a comma-separated list */ | |
686 | QUIT; /* allow user to bail out with ^C */ | |
687 | while (isspace ((int) *p)) | |
688 | p++; | |
689 | ||
9355b391 SS |
690 | tmp_p = p; |
691 | for (loc = t->loc; loc; loc = loc->next) | |
692 | { | |
693 | p = tmp_p; | |
694 | /* Only expressions are allowed for this action. */ | |
695 | exp = parse_exp_1 (&p, block_for_pc (loc->address), 1); | |
696 | old_chain = make_cleanup (free_current_contents, &exp); | |
6da95a67 | 697 | |
9355b391 SS |
698 | /* We have something to evaluate, make sure that the expr to |
699 | bytecode translator can handle it and that it's not too | |
700 | long. */ | |
701 | aexpr = gen_eval_for_expr (loc->address, exp); | |
702 | make_cleanup_free_agent_expr (aexpr); | |
6da95a67 | 703 | |
9355b391 | 704 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
fff87407 SS |
705 | error (_("Expression is too complicated.")); |
706 | ||
35c9c7ba SS |
707 | ax_reqs (aexpr); |
708 | report_agent_reqs_errors (aexpr); | |
6da95a67 | 709 | |
9355b391 SS |
710 | do_cleanups (old_chain); |
711 | } | |
6da95a67 SS |
712 | } |
713 | while (p && *p++ == ','); | |
6da95a67 | 714 | } |
fff87407 | 715 | |
bbaca940 | 716 | else if (cmd_cfunc_eq (c, while_stepping_pseudocommand)) |
c906108c | 717 | { |
c5aa993b | 718 | char *steparg; /* in case warning is necessary */ |
c906108c | 719 | |
104c1213 | 720 | while (isspace ((int) *p)) |
c906108c SS |
721 | p++; |
722 | steparg = p; | |
723 | ||
fff87407 SS |
724 | if (*p == '\0' || (t->step_count = strtol (p, &p, 0)) == 0) |
725 | error (_("while-stepping step count `%s' is malformed."), *line); | |
c906108c | 726 | } |
fff87407 | 727 | |
bbaca940 | 728 | else if (cmd_cfunc_eq (c, end_actions_pseudocommand)) |
fff87407 SS |
729 | ; |
730 | ||
c906108c | 731 | else |
fff87407 | 732 | error (_("`%s' is not a supported tracepoint action."), *line); |
74b7792f AC |
733 | } |
734 | ||
f50e79a4 JB |
735 | enum { |
736 | memrange_absolute = -1 | |
737 | }; | |
738 | ||
c5aa993b JM |
739 | struct memrange |
740 | { | |
f50e79a4 JB |
741 | int type; /* memrange_absolute for absolute memory range, |
742 | else basereg number */ | |
c906108c SS |
743 | bfd_signed_vma start; |
744 | bfd_signed_vma end; | |
745 | }; | |
746 | ||
c5aa993b JM |
747 | struct collection_list |
748 | { | |
549678da | 749 | unsigned char regs_mask[32]; /* room for up to 256 regs */ |
c5aa993b JM |
750 | long listsize; |
751 | long next_memrange; | |
752 | struct memrange *list; | |
753 | long aexpr_listsize; /* size of array pointed to by expr_list elt */ | |
754 | long next_aexpr_elt; | |
755 | struct agent_expr **aexpr_list; | |
756 | ||
0fb4aa4b PA |
757 | /* True is the user requested a collection of "$_sdata", "static |
758 | tracepoint data". */ | |
759 | int strace_data; | |
c5aa993b JM |
760 | } |
761 | tracepoint_list, stepping_list; | |
c906108c SS |
762 | |
763 | /* MEMRANGE functions: */ | |
764 | ||
a14ed312 | 765 | static int memrange_cmp (const void *, const void *); |
c906108c SS |
766 | |
767 | /* compare memranges for qsort */ | |
768 | static int | |
fba45db2 | 769 | memrange_cmp (const void *va, const void *vb) |
c906108c SS |
770 | { |
771 | const struct memrange *a = va, *b = vb; | |
772 | ||
773 | if (a->type < b->type) | |
774 | return -1; | |
775 | if (a->type > b->type) | |
c5aa993b | 776 | return 1; |
f50e79a4 | 777 | if (a->type == memrange_absolute) |
c906108c | 778 | { |
c5aa993b JM |
779 | if ((bfd_vma) a->start < (bfd_vma) b->start) |
780 | return -1; | |
781 | if ((bfd_vma) a->start > (bfd_vma) b->start) | |
782 | return 1; | |
c906108c SS |
783 | } |
784 | else | |
785 | { | |
c5aa993b | 786 | if (a->start < b->start) |
c906108c | 787 | return -1; |
c5aa993b JM |
788 | if (a->start > b->start) |
789 | return 1; | |
c906108c SS |
790 | } |
791 | return 0; | |
792 | } | |
793 | ||
d183932d | 794 | /* Sort the memrange list using qsort, and merge adjacent memranges. */ |
c906108c | 795 | static void |
fba45db2 | 796 | memrange_sortmerge (struct collection_list *memranges) |
c906108c SS |
797 | { |
798 | int a, b; | |
799 | ||
c5aa993b | 800 | qsort (memranges->list, memranges->next_memrange, |
c906108c SS |
801 | sizeof (struct memrange), memrange_cmp); |
802 | if (memranges->next_memrange > 0) | |
803 | { | |
804 | for (a = 0, b = 1; b < memranges->next_memrange; b++) | |
805 | { | |
806 | if (memranges->list[a].type == memranges->list[b].type && | |
c5aa993b | 807 | memranges->list[b].start - memranges->list[a].end <= |
0c92afe8 | 808 | MAX_REGISTER_SIZE) |
c906108c SS |
809 | { |
810 | /* memrange b starts before memrange a ends; merge them. */ | |
811 | if (memranges->list[b].end > memranges->list[a].end) | |
812 | memranges->list[a].end = memranges->list[b].end; | |
813 | continue; /* next b, same a */ | |
814 | } | |
815 | a++; /* next a */ | |
816 | if (a != b) | |
c5aa993b | 817 | memcpy (&memranges->list[a], &memranges->list[b], |
c906108c SS |
818 | sizeof (struct memrange)); |
819 | } | |
820 | memranges->next_memrange = a + 1; | |
821 | } | |
822 | } | |
823 | ||
d183932d | 824 | /* Add a register to a collection list. */ |
392a587b | 825 | static void |
fba45db2 | 826 | add_register (struct collection_list *collection, unsigned int regno) |
c906108c SS |
827 | { |
828 | if (info_verbose) | |
829 | printf_filtered ("collect register %d\n", regno); | |
27e06d3e | 830 | if (regno >= (8 * sizeof (collection->regs_mask))) |
8a3fe4f8 | 831 | error (_("Internal: register number %d too large for tracepoint"), |
c906108c | 832 | regno); |
c5aa993b | 833 | collection->regs_mask[regno / 8] |= 1 << (regno % 8); |
c906108c SS |
834 | } |
835 | ||
836 | /* Add a memrange to a collection list */ | |
837 | static void | |
d183932d MS |
838 | add_memrange (struct collection_list *memranges, |
839 | int type, bfd_signed_vma base, | |
fba45db2 | 840 | unsigned long len) |
c906108c SS |
841 | { |
842 | if (info_verbose) | |
104c1213 JM |
843 | { |
844 | printf_filtered ("(%d,", type); | |
845 | printf_vma (base); | |
846 | printf_filtered (",%ld)\n", len); | |
847 | } | |
848 | ||
f50e79a4 | 849 | /* type: memrange_absolute == memory, other n == basereg */ |
c5aa993b | 850 | memranges->list[memranges->next_memrange].type = type; |
d183932d | 851 | /* base: addr if memory, offset if reg relative. */ |
c906108c SS |
852 | memranges->list[memranges->next_memrange].start = base; |
853 | /* len: we actually save end (base + len) for convenience */ | |
c5aa993b | 854 | memranges->list[memranges->next_memrange].end = base + len; |
c906108c SS |
855 | memranges->next_memrange++; |
856 | if (memranges->next_memrange >= memranges->listsize) | |
857 | { | |
858 | memranges->listsize *= 2; | |
c5aa993b | 859 | memranges->list = xrealloc (memranges->list, |
c906108c SS |
860 | memranges->listsize); |
861 | } | |
862 | ||
3e43a32a | 863 | if (type != memrange_absolute) /* Better collect the base register! */ |
c906108c SS |
864 | add_register (memranges, type); |
865 | } | |
866 | ||
d183932d | 867 | /* Add a symbol to a collection list. */ |
c906108c | 868 | static void |
d183932d MS |
869 | collect_symbol (struct collection_list *collect, |
870 | struct symbol *sym, | |
a6d9a66e | 871 | struct gdbarch *gdbarch, |
0936ad1d SS |
872 | long frame_regno, long frame_offset, |
873 | CORE_ADDR scope) | |
c906108c | 874 | { |
c5aa993b | 875 | unsigned long len; |
104c1213 | 876 | unsigned int reg; |
c906108c | 877 | bfd_signed_vma offset; |
400c6af0 | 878 | int treat_as_expr = 0; |
c906108c | 879 | |
c5aa993b JM |
880 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
881 | switch (SYMBOL_CLASS (sym)) | |
882 | { | |
883 | default: | |
884 | printf_filtered ("%s: don't know symbol class %d\n", | |
3567439c | 885 | SYMBOL_PRINT_NAME (sym), |
d183932d | 886 | SYMBOL_CLASS (sym)); |
c5aa993b JM |
887 | break; |
888 | case LOC_CONST: | |
104c1213 | 889 | printf_filtered ("constant %s (value %ld) will not be collected.\n", |
3567439c | 890 | SYMBOL_PRINT_NAME (sym), SYMBOL_VALUE (sym)); |
c5aa993b JM |
891 | break; |
892 | case LOC_STATIC: | |
893 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
894 | if (info_verbose) | |
104c1213 JM |
895 | { |
896 | char tmp[40]; | |
897 | ||
898 | sprintf_vma (tmp, offset); | |
899 | printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", | |
3567439c | 900 | SYMBOL_PRINT_NAME (sym), len, |
d183932d | 901 | tmp /* address */); |
104c1213 | 902 | } |
400c6af0 SS |
903 | /* A struct may be a C++ class with static fields, go to general |
904 | expression handling. */ | |
905 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT) | |
906 | treat_as_expr = 1; | |
907 | else | |
908 | add_memrange (collect, memrange_absolute, offset, len); | |
c5aa993b JM |
909 | break; |
910 | case LOC_REGISTER: | |
a6d9a66e | 911 | reg = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); |
c5aa993b | 912 | if (info_verbose) |
d183932d | 913 | printf_filtered ("LOC_REG[parm] %s: ", |
3567439c | 914 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 915 | add_register (collect, reg); |
d183932d MS |
916 | /* Check for doubles stored in two registers. */ |
917 | /* FIXME: how about larger types stored in 3 or more regs? */ | |
c5aa993b | 918 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT && |
a6d9a66e | 919 | len > register_size (gdbarch, reg)) |
c5aa993b JM |
920 | add_register (collect, reg + 1); |
921 | break; | |
922 | case LOC_REF_ARG: | |
923 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); | |
924 | printf_filtered (" (will not collect %s)\n", | |
3567439c | 925 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
926 | break; |
927 | case LOC_ARG: | |
928 | reg = frame_regno; | |
929 | offset = frame_offset + SYMBOL_VALUE (sym); | |
930 | if (info_verbose) | |
931 | { | |
104c1213 | 932 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 933 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
934 | printf_vma (offset); |
935 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
936 | } |
937 | add_memrange (collect, reg, offset, len); | |
938 | break; | |
939 | case LOC_REGPARM_ADDR: | |
940 | reg = SYMBOL_VALUE (sym); | |
941 | offset = 0; | |
942 | if (info_verbose) | |
943 | { | |
104c1213 | 944 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ", |
3567439c | 945 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
946 | printf_vma (offset); |
947 | printf_filtered (" from reg %d\n", reg); | |
c5aa993b JM |
948 | } |
949 | add_memrange (collect, reg, offset, len); | |
950 | break; | |
951 | case LOC_LOCAL: | |
c5aa993b JM |
952 | reg = frame_regno; |
953 | offset = frame_offset + SYMBOL_VALUE (sym); | |
954 | if (info_verbose) | |
955 | { | |
104c1213 | 956 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 957 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
958 | printf_vma (offset); |
959 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
960 | } |
961 | add_memrange (collect, reg, offset, len); | |
962 | break; | |
a0405854 | 963 | |
c5aa993b | 964 | case LOC_UNRESOLVED: |
a0405854 | 965 | treat_as_expr = 1; |
c5aa993b | 966 | break; |
a0405854 | 967 | |
c5aa993b | 968 | case LOC_OPTIMIZED_OUT: |
8e1a459b | 969 | printf_filtered ("%s has been optimized out of existence.\n", |
3567439c | 970 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 971 | break; |
0936ad1d SS |
972 | |
973 | case LOC_COMPUTED: | |
400c6af0 | 974 | treat_as_expr = 1; |
0936ad1d | 975 | break; |
c5aa993b | 976 | } |
400c6af0 SS |
977 | |
978 | /* Expressions are the most general case. */ | |
979 | if (treat_as_expr) | |
980 | { | |
981 | struct agent_expr *aexpr; | |
982 | struct cleanup *old_chain1 = NULL; | |
400c6af0 SS |
983 | |
984 | aexpr = gen_trace_for_var (scope, gdbarch, sym); | |
985 | ||
986 | /* It can happen that the symbol is recorded as a computed | |
987 | location, but it's been optimized away and doesn't actually | |
988 | have a location expression. */ | |
989 | if (!aexpr) | |
990 | { | |
991 | printf_filtered ("%s has been optimized out of existence.\n", | |
992 | SYMBOL_PRINT_NAME (sym)); | |
993 | return; | |
994 | } | |
995 | ||
996 | old_chain1 = make_cleanup_free_agent_expr (aexpr); | |
997 | ||
35c9c7ba | 998 | ax_reqs (aexpr); |
fff87407 | 999 | |
35c9c7ba | 1000 | report_agent_reqs_errors (aexpr); |
400c6af0 SS |
1001 | |
1002 | discard_cleanups (old_chain1); | |
1003 | add_aexpr (collect, aexpr); | |
1004 | ||
1005 | /* take care of the registers */ | |
35c9c7ba | 1006 | if (aexpr->reg_mask_len > 0) |
400c6af0 SS |
1007 | { |
1008 | int ndx1, ndx2; | |
1009 | ||
35c9c7ba | 1010 | for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++) |
400c6af0 SS |
1011 | { |
1012 | QUIT; /* allow user to bail out with ^C */ | |
35c9c7ba | 1013 | if (aexpr->reg_mask[ndx1] != 0) |
400c6af0 SS |
1014 | { |
1015 | /* assume chars have 8 bits */ | |
1016 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
35c9c7ba | 1017 | if (aexpr->reg_mask[ndx1] & (1 << ndx2)) |
400c6af0 SS |
1018 | /* it's used -- record it */ |
1019 | add_register (collect, ndx1 * 8 + ndx2); | |
1020 | } | |
1021 | } | |
1022 | } | |
1023 | } | |
c906108c SS |
1024 | } |
1025 | ||
2c58c0a9 PA |
1026 | /* Data to be passed around in the calls to the locals and args |
1027 | iterators. */ | |
1028 | ||
1029 | struct add_local_symbols_data | |
1030 | { | |
1031 | struct collection_list *collect; | |
1032 | struct gdbarch *gdbarch; | |
1033 | CORE_ADDR pc; | |
1034 | long frame_regno; | |
1035 | long frame_offset; | |
1036 | int count; | |
1037 | }; | |
1038 | ||
1039 | /* The callback for the locals and args iterators */ | |
1040 | ||
1041 | static void | |
1042 | do_collect_symbol (const char *print_name, | |
1043 | struct symbol *sym, | |
1044 | void *cb_data) | |
1045 | { | |
1046 | struct add_local_symbols_data *p = cb_data; | |
1047 | ||
1048 | collect_symbol (p->collect, sym, p->gdbarch, p->frame_regno, | |
1049 | p->frame_offset, p->pc); | |
1050 | p->count++; | |
1051 | } | |
1052 | ||
c906108c SS |
1053 | /* Add all locals (or args) symbols to collection list */ |
1054 | static void | |
a6d9a66e UW |
1055 | add_local_symbols (struct collection_list *collect, |
1056 | struct gdbarch *gdbarch, CORE_ADDR pc, | |
fba45db2 | 1057 | long frame_regno, long frame_offset, int type) |
c906108c | 1058 | { |
c5aa993b | 1059 | struct block *block; |
2c58c0a9 PA |
1060 | struct add_local_symbols_data cb_data; |
1061 | ||
1062 | cb_data.collect = collect; | |
1063 | cb_data.gdbarch = gdbarch; | |
1064 | cb_data.pc = pc; | |
1065 | cb_data.frame_regno = frame_regno; | |
1066 | cb_data.frame_offset = frame_offset; | |
1067 | cb_data.count = 0; | |
c906108c | 1068 | |
2c58c0a9 | 1069 | if (type == 'L') |
c906108c | 1070 | { |
2c58c0a9 PA |
1071 | block = block_for_pc (pc); |
1072 | if (block == NULL) | |
c906108c | 1073 | { |
2c58c0a9 PA |
1074 | warning (_("Can't collect locals; " |
1075 | "no symbol table info available.\n")); | |
1076 | return; | |
c906108c | 1077 | } |
2c58c0a9 PA |
1078 | |
1079 | iterate_over_block_local_vars (block, do_collect_symbol, &cb_data); | |
1080 | if (cb_data.count == 0) | |
1081 | warning (_("No locals found in scope.")); | |
1082 | } | |
1083 | else | |
1084 | { | |
1085 | pc = get_pc_function_start (pc); | |
1086 | block = block_for_pc (pc); | |
1087 | if (block == NULL) | |
1088 | { | |
1089 | warning (_("Can't collect args; no symbol table info available.\n")); | |
1090 | return; | |
1091 | } | |
1092 | ||
1093 | iterate_over_block_arg_vars (block, do_collect_symbol, &cb_data); | |
1094 | if (cb_data.count == 0) | |
1095 | warning (_("No args found in scope.")); | |
c906108c | 1096 | } |
c906108c SS |
1097 | } |
1098 | ||
0fb4aa4b PA |
1099 | static void |
1100 | add_static_trace_data (struct collection_list *collection) | |
1101 | { | |
1102 | if (info_verbose) | |
1103 | printf_filtered ("collect static trace data\n"); | |
1104 | collection->strace_data = 1; | |
1105 | } | |
1106 | ||
c906108c SS |
1107 | /* worker function */ |
1108 | static void | |
fba45db2 | 1109 | clear_collection_list (struct collection_list *list) |
c906108c SS |
1110 | { |
1111 | int ndx; | |
1112 | ||
1113 | list->next_memrange = 0; | |
1114 | for (ndx = 0; ndx < list->next_aexpr_elt; ndx++) | |
1115 | { | |
c5aa993b | 1116 | free_agent_expr (list->aexpr_list[ndx]); |
c906108c SS |
1117 | list->aexpr_list[ndx] = NULL; |
1118 | } | |
1119 | list->next_aexpr_elt = 0; | |
1120 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); | |
0fb4aa4b | 1121 | list->strace_data = 0; |
c906108c SS |
1122 | } |
1123 | ||
1124 | /* reduce a collection list to string form (for gdb protocol) */ | |
1125 | static char ** | |
fba45db2 | 1126 | stringify_collection_list (struct collection_list *list, char *string) |
c906108c SS |
1127 | { |
1128 | char temp_buf[2048]; | |
104c1213 | 1129 | char tmp2[40]; |
c906108c SS |
1130 | int count; |
1131 | int ndx = 0; | |
1132 | char *(*str_list)[]; | |
1133 | char *end; | |
c5aa993b | 1134 | long i; |
c906108c | 1135 | |
0fb4aa4b | 1136 | count = 1 + 1 + list->next_memrange + list->next_aexpr_elt + 1; |
c5aa993b | 1137 | str_list = (char *(*)[]) xmalloc (count * sizeof (char *)); |
c906108c | 1138 | |
0fb4aa4b PA |
1139 | if (list->strace_data) |
1140 | { | |
1141 | if (info_verbose) | |
1142 | printf_filtered ("\nCollecting static trace data\n"); | |
1143 | end = temp_buf; | |
1144 | *end++ = 'L'; | |
1145 | (*str_list)[ndx] = savestring (temp_buf, end - temp_buf); | |
1146 | ndx++; | |
1147 | } | |
1148 | ||
c906108c SS |
1149 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) |
1150 | if (list->regs_mask[i] != 0) /* skip leading zeroes in regs_mask */ | |
1151 | break; | |
1152 | if (list->regs_mask[i] != 0) /* prepare to send regs_mask to the stub */ | |
1153 | { | |
1154 | if (info_verbose) | |
1155 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
1156 | end = temp_buf; | |
c5aa993b | 1157 | *end++ = 'R'; |
c906108c SS |
1158 | for (; i >= 0; i--) |
1159 | { | |
c5aa993b | 1160 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
1161 | if (info_verbose) |
1162 | printf_filtered ("%02X", list->regs_mask[i]); | |
c5aa993b | 1163 | sprintf (end, "%02X", list->regs_mask[i]); |
c906108c SS |
1164 | end += 2; |
1165 | } | |
1b36a34b | 1166 | (*str_list)[ndx] = xstrdup (temp_buf); |
c906108c SS |
1167 | ndx++; |
1168 | } | |
1169 | if (info_verbose) | |
1170 | printf_filtered ("\n"); | |
1171 | if (list->next_memrange > 0 && info_verbose) | |
1172 | printf_filtered ("Collecting memranges: \n"); | |
1173 | for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++) | |
1174 | { | |
1175 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 1176 | sprintf_vma (tmp2, list->list[i].start); |
c906108c | 1177 | if (info_verbose) |
104c1213 JM |
1178 | { |
1179 | printf_filtered ("(%d, %s, %ld)\n", | |
1180 | list->list[i].type, | |
1181 | tmp2, | |
1182 | (long) (list->list[i].end - list->list[i].start)); | |
1183 | } | |
c906108c SS |
1184 | if (count + 27 > MAX_AGENT_EXPR_LEN) |
1185 | { | |
c5aa993b | 1186 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1187 | ndx++; |
1188 | count = 0; | |
1189 | end = temp_buf; | |
1190 | } | |
104c1213 | 1191 | |
d1948716 JB |
1192 | { |
1193 | bfd_signed_vma length = list->list[i].end - list->list[i].start; | |
1194 | ||
1195 | /* The "%X" conversion specifier expects an unsigned argument, | |
f50e79a4 JB |
1196 | so passing -1 (memrange_absolute) to it directly gives you |
1197 | "FFFFFFFF" (or more, depending on sizeof (unsigned)). | |
1198 | Special-case it. */ | |
1199 | if (list->list[i].type == memrange_absolute) | |
d1948716 JB |
1200 | sprintf (end, "M-1,%s,%lX", tmp2, (long) length); |
1201 | else | |
1202 | sprintf (end, "M%X,%s,%lX", list->list[i].type, tmp2, (long) length); | |
1203 | } | |
104c1213 | 1204 | |
c906108c | 1205 | count += strlen (end); |
3ffbc0a5 | 1206 | end = temp_buf + count; |
c906108c SS |
1207 | } |
1208 | ||
1209 | for (i = 0; i < list->next_aexpr_elt; i++) | |
1210 | { | |
1211 | QUIT; /* allow user to bail out with ^C */ | |
1212 | if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN) | |
1213 | { | |
c5aa993b | 1214 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1215 | ndx++; |
1216 | count = 0; | |
1217 | end = temp_buf; | |
1218 | } | |
1219 | sprintf (end, "X%08X,", list->aexpr_list[i]->len); | |
1220 | end += 10; /* 'X' + 8 hex digits + ',' */ | |
1221 | count += 10; | |
1222 | ||
d183932d MS |
1223 | end = mem2hex (list->aexpr_list[i]->buf, |
1224 | end, list->aexpr_list[i]->len); | |
c906108c SS |
1225 | count += 2 * list->aexpr_list[i]->len; |
1226 | } | |
1227 | ||
1228 | if (count != 0) | |
1229 | { | |
c5aa993b | 1230 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1231 | ndx++; |
1232 | count = 0; | |
1233 | end = temp_buf; | |
1234 | } | |
1235 | (*str_list)[ndx] = NULL; | |
1236 | ||
1237 | if (ndx == 0) | |
27e06d3e | 1238 | { |
6c761d9c | 1239 | xfree (str_list); |
27e06d3e MS |
1240 | return NULL; |
1241 | } | |
c906108c SS |
1242 | else |
1243 | return *str_list; | |
1244 | } | |
1245 | ||
a7bdde9e VP |
1246 | |
1247 | static void | |
1248 | encode_actions_1 (struct command_line *action, | |
1249 | struct breakpoint *t, | |
1250 | struct bp_location *tloc, | |
1251 | int frame_reg, | |
1252 | LONGEST frame_offset, | |
1253 | struct collection_list *collect, | |
1254 | struct collection_list *stepping_list) | |
c906108c | 1255 | { |
c5aa993b JM |
1256 | char *action_exp; |
1257 | struct expression *exp = NULL; | |
104c1213 | 1258 | int i; |
f976f6d4 | 1259 | struct value *tempval; |
c906108c SS |
1260 | struct cmd_list_element *cmd; |
1261 | struct agent_expr *aexpr; | |
236f1d4d SS |
1262 | |
1263 | for (; action; action = action->next) | |
c906108c SS |
1264 | { |
1265 | QUIT; /* allow user to bail out with ^C */ | |
a7bdde9e | 1266 | action_exp = action->line; |
104c1213 | 1267 | while (isspace ((int) *action_exp)) |
c906108c SS |
1268 | action_exp++; |
1269 | ||
c906108c SS |
1270 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
1271 | if (cmd == 0) | |
8a3fe4f8 | 1272 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 1273 | |
bbaca940 | 1274 | if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c | 1275 | { |
c5aa993b JM |
1276 | do |
1277 | { /* repeat over a comma-separated list */ | |
1278 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 1279 | while (isspace ((int) *action_exp)) |
c5aa993b | 1280 | action_exp++; |
c906108c | 1281 | |
c5aa993b JM |
1282 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1283 | { | |
a6d9a66e | 1284 | for (i = 0; i < gdbarch_num_regs (t->gdbarch); i++) |
c5aa993b JM |
1285 | add_register (collect, i); |
1286 | action_exp = strchr (action_exp, ','); /* more? */ | |
1287 | } | |
1288 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1289 | { | |
1290 | add_local_symbols (collect, | |
a6d9a66e | 1291 | t->gdbarch, |
9355b391 | 1292 | tloc->address, |
c5aa993b JM |
1293 | frame_reg, |
1294 | frame_offset, | |
1295 | 'A'); | |
1296 | action_exp = strchr (action_exp, ','); /* more? */ | |
1297 | } | |
1298 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1299 | { | |
1300 | add_local_symbols (collect, | |
a6d9a66e | 1301 | t->gdbarch, |
9355b391 | 1302 | tloc->address, |
c5aa993b JM |
1303 | frame_reg, |
1304 | frame_offset, | |
1305 | 'L'); | |
1306 | action_exp = strchr (action_exp, ','); /* more? */ | |
1307 | } | |
0fb4aa4b PA |
1308 | else if (0 == strncasecmp ("$_sdata", action_exp, 7)) |
1309 | { | |
1310 | add_static_trace_data (collect); | |
1311 | action_exp = strchr (action_exp, ','); /* more? */ | |
1312 | } | |
c5aa993b JM |
1313 | else |
1314 | { | |
1315 | unsigned long addr, len; | |
1316 | struct cleanup *old_chain = NULL; | |
1317 | struct cleanup *old_chain1 = NULL; | |
c5aa993b | 1318 | |
75ac9d7b | 1319 | exp = parse_exp_1 (&action_exp, |
9355b391 | 1320 | block_for_pc (tloc->address), 1); |
74b7792f | 1321 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 1322 | |
c5aa993b JM |
1323 | switch (exp->elts[0].opcode) |
1324 | { | |
1325 | case OP_REGISTER: | |
67f3407f DJ |
1326 | { |
1327 | const char *name = &exp->elts[2].string; | |
1328 | ||
a6d9a66e | 1329 | i = user_reg_map_name_to_regnum (t->gdbarch, |
029a67e4 | 1330 | name, strlen (name)); |
67f3407f DJ |
1331 | if (i == -1) |
1332 | internal_error (__FILE__, __LINE__, | |
1333 | _("Register $%s not available"), | |
1334 | name); | |
1335 | if (info_verbose) | |
1336 | printf_filtered ("OP_REGISTER: "); | |
1337 | add_register (collect, i); | |
1338 | break; | |
1339 | } | |
c5aa993b JM |
1340 | |
1341 | case UNOP_MEMVAL: | |
1342 | /* safe because we know it's a simple expression */ | |
1343 | tempval = evaluate_expression (exp); | |
42ae5230 | 1344 | addr = value_address (tempval); |
c5aa993b | 1345 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); |
f50e79a4 | 1346 | add_memrange (collect, memrange_absolute, addr, len); |
c5aa993b JM |
1347 | break; |
1348 | ||
1349 | case OP_VAR_VALUE: | |
1350 | collect_symbol (collect, | |
1351 | exp->elts[2].symbol, | |
a6d9a66e | 1352 | t->gdbarch, |
c5aa993b | 1353 | frame_reg, |
0936ad1d | 1354 | frame_offset, |
9355b391 | 1355 | tloc->address); |
c5aa993b JM |
1356 | break; |
1357 | ||
1358 | default: /* full-fledged expression */ | |
9355b391 | 1359 | aexpr = gen_trace_for_expr (tloc->address, exp); |
c5aa993b | 1360 | |
f23d52e0 | 1361 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
c5aa993b | 1362 | |
35c9c7ba | 1363 | ax_reqs (aexpr); |
c5aa993b | 1364 | |
35c9c7ba | 1365 | report_agent_reqs_errors (aexpr); |
c5aa993b JM |
1366 | |
1367 | discard_cleanups (old_chain1); | |
1368 | add_aexpr (collect, aexpr); | |
1369 | ||
1370 | /* take care of the registers */ | |
35c9c7ba | 1371 | if (aexpr->reg_mask_len > 0) |
c906108c | 1372 | { |
c5aa993b JM |
1373 | int ndx1; |
1374 | int ndx2; | |
1375 | ||
35c9c7ba | 1376 | for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++) |
c906108c | 1377 | { |
c5aa993b | 1378 | QUIT; /* allow user to bail out with ^C */ |
35c9c7ba | 1379 | if (aexpr->reg_mask[ndx1] != 0) |
c5aa993b JM |
1380 | { |
1381 | /* assume chars have 8 bits */ | |
1382 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
35c9c7ba | 1383 | if (aexpr->reg_mask[ndx1] & (1 << ndx2)) |
c5aa993b | 1384 | /* it's used -- record it */ |
d183932d MS |
1385 | add_register (collect, |
1386 | ndx1 * 8 + ndx2); | |
c5aa993b | 1387 | } |
c906108c SS |
1388 | } |
1389 | } | |
c5aa993b JM |
1390 | break; |
1391 | } /* switch */ | |
1392 | do_cleanups (old_chain); | |
1393 | } /* do */ | |
1394 | } | |
1395 | while (action_exp && *action_exp++ == ','); | |
1396 | } /* if */ | |
6da95a67 SS |
1397 | else if (cmd_cfunc_eq (cmd, teval_pseudocommand)) |
1398 | { | |
1399 | do | |
1400 | { /* repeat over a comma-separated list */ | |
1401 | QUIT; /* allow user to bail out with ^C */ | |
1402 | while (isspace ((int) *action_exp)) | |
1403 | action_exp++; | |
1404 | ||
1405 | { | |
6da95a67 SS |
1406 | struct cleanup *old_chain = NULL; |
1407 | struct cleanup *old_chain1 = NULL; | |
6da95a67 SS |
1408 | |
1409 | exp = parse_exp_1 (&action_exp, | |
9355b391 | 1410 | block_for_pc (tloc->address), 1); |
6da95a67 SS |
1411 | old_chain = make_cleanup (free_current_contents, &exp); |
1412 | ||
9355b391 | 1413 | aexpr = gen_eval_for_expr (tloc->address, exp); |
6da95a67 SS |
1414 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
1415 | ||
35c9c7ba SS |
1416 | ax_reqs (aexpr); |
1417 | report_agent_reqs_errors (aexpr); | |
6da95a67 SS |
1418 | |
1419 | discard_cleanups (old_chain1); | |
1420 | /* Even though we're not officially collecting, add | |
1421 | to the collect list anyway. */ | |
1422 | add_aexpr (collect, aexpr); | |
1423 | ||
1424 | do_cleanups (old_chain); | |
1425 | } /* do */ | |
1426 | } | |
1427 | while (action_exp && *action_exp++ == ','); | |
1428 | } /* if */ | |
bbaca940 | 1429 | else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 1430 | { |
a7bdde9e VP |
1431 | /* We check against nested while-stepping when setting |
1432 | breakpoint action, so no way to run into nested | |
1433 | here. */ | |
1434 | gdb_assert (stepping_list); | |
1435 | ||
2a2287c7 MS |
1436 | encode_actions_1 (action->body_list[0], t, tloc, frame_reg, |
1437 | frame_offset, stepping_list, NULL); | |
c906108c | 1438 | } |
a7bdde9e VP |
1439 | else |
1440 | error (_("Invalid tracepoint command '%s'"), action->line); | |
1441 | } /* for */ | |
1442 | } | |
1443 | ||
1444 | /* Render all actions into gdb protocol. */ | |
1445 | /*static*/ void | |
1446 | encode_actions (struct breakpoint *t, struct bp_location *tloc, | |
1447 | char ***tdp_actions, char ***stepping_actions) | |
1448 | { | |
1449 | static char tdp_buff[2048], step_buff[2048]; | |
1450 | char *default_collect_line = NULL; | |
1451 | struct command_line *actions; | |
1452 | struct command_line *default_collect_action = NULL; | |
1453 | int frame_reg; | |
1454 | LONGEST frame_offset; | |
1455 | struct cleanup *back_to; | |
1456 | ||
1457 | back_to = make_cleanup (null_cleanup, NULL); | |
1458 | ||
1459 | clear_collection_list (&tracepoint_list); | |
1460 | clear_collection_list (&stepping_list); | |
1461 | ||
1462 | *tdp_actions = NULL; | |
1463 | *stepping_actions = NULL; | |
1464 | ||
1465 | gdbarch_virtual_frame_pointer (t->gdbarch, | |
1466 | t->loc->address, &frame_reg, &frame_offset); | |
1467 | ||
5cea2a26 | 1468 | actions = breakpoint_commands (t); |
a7bdde9e VP |
1469 | |
1470 | /* If there are default expressions to collect, make up a collect | |
1471 | action and prepend to the action list to encode. Note that since | |
1472 | validation is per-tracepoint (local var "xyz" might be valid for | |
1473 | one tracepoint and not another, etc), we make up the action on | |
1474 | the fly, and don't cache it. */ | |
1475 | if (*default_collect) | |
1476 | { | |
1477 | char *line; | |
a7bdde9e VP |
1478 | |
1479 | default_collect_line = xstrprintf ("collect %s", default_collect); | |
1480 | make_cleanup (xfree, default_collect_line); | |
1481 | ||
1482 | line = default_collect_line; | |
fff87407 SS |
1483 | validate_actionline (&line, t); |
1484 | ||
1485 | default_collect_action = xmalloc (sizeof (struct command_line)); | |
1486 | make_cleanup (xfree, default_collect_action); | |
5cea2a26 | 1487 | default_collect_action->next = actions; |
fff87407 SS |
1488 | default_collect_action->line = line; |
1489 | actions = default_collect_action; | |
a7bdde9e VP |
1490 | } |
1491 | encode_actions_1 (actions, t, tloc, frame_reg, frame_offset, | |
1492 | &tracepoint_list, &stepping_list); | |
1493 | ||
c5aa993b JM |
1494 | memrange_sortmerge (&tracepoint_list); |
1495 | memrange_sortmerge (&stepping_list); | |
c906108c | 1496 | |
a7bdde9e | 1497 | *tdp_actions = stringify_collection_list (&tracepoint_list, |
d183932d | 1498 | tdp_buff); |
a7bdde9e | 1499 | *stepping_actions = stringify_collection_list (&stepping_list, |
d183932d | 1500 | step_buff); |
236f1d4d | 1501 | |
a7bdde9e | 1502 | do_cleanups (back_to); |
c906108c SS |
1503 | } |
1504 | ||
1505 | static void | |
fba45db2 | 1506 | add_aexpr (struct collection_list *collect, struct agent_expr *aexpr) |
c906108c SS |
1507 | { |
1508 | if (collect->next_aexpr_elt >= collect->aexpr_listsize) | |
1509 | { | |
1510 | collect->aexpr_list = | |
1511 | xrealloc (collect->aexpr_list, | |
5d502164 | 1512 | 2 * collect->aexpr_listsize * sizeof (struct agent_expr *)); |
c906108c SS |
1513 | collect->aexpr_listsize *= 2; |
1514 | } | |
1515 | collect->aexpr_list[collect->next_aexpr_elt] = aexpr; | |
1516 | collect->next_aexpr_elt++; | |
1517 | } | |
1518 | ||
c5aa993b | 1519 | |
f224b49d VP |
1520 | void |
1521 | start_tracing (void) | |
d183932d | 1522 | { |
1042e4c0 SS |
1523 | VEC(breakpoint_p) *tp_vec = NULL; |
1524 | int ix; | |
1525 | struct breakpoint *t; | |
f61e138d | 1526 | struct trace_state_variable *tsv; |
d914c394 | 1527 | int any_enabled = 0, num_to_download = 0; |
35b1e5cc SS |
1528 | |
1529 | tp_vec = all_tracepoints (); | |
76a2b958 SS |
1530 | |
1531 | /* No point in tracing without any tracepoints... */ | |
1532 | if (VEC_length (breakpoint_p, tp_vec) == 0) | |
1533 | { | |
1534 | VEC_free (breakpoint_p, tp_vec); | |
1535 | error (_("No tracepoints defined, not starting trace")); | |
1536 | } | |
1537 | ||
1538 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
1539 | { | |
1540 | if (t->enable_state == bp_enabled) | |
d914c394 SS |
1541 | any_enabled = 1; |
1542 | ||
1543 | if ((t->type == bp_fast_tracepoint | |
1544 | ? may_insert_fast_tracepoints | |
1545 | : may_insert_tracepoints)) | |
1546 | ++num_to_download; | |
1547 | else | |
1548 | warning (_("May not insert %stracepoints, skipping tracepoint %d"), | |
1549 | (t->type == bp_fast_tracepoint ? "fast " : ""), t->number); | |
76a2b958 SS |
1550 | } |
1551 | ||
1552 | /* No point in tracing with only disabled tracepoints. */ | |
1553 | if (!any_enabled) | |
1554 | { | |
1555 | VEC_free (breakpoint_p, tp_vec); | |
1556 | error (_("No tracepoints enabled, not starting trace")); | |
1557 | } | |
1558 | ||
d914c394 SS |
1559 | if (num_to_download <= 0) |
1560 | { | |
1561 | VEC_free (breakpoint_p, tp_vec); | |
1562 | error (_("No tracepoints that may be downloaded, not starting trace")); | |
1563 | } | |
1564 | ||
76a2b958 SS |
1565 | target_trace_init (); |
1566 | ||
35b1e5cc | 1567 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) |
7a697b8d | 1568 | { |
d914c394 SS |
1569 | if ((t->type == bp_fast_tracepoint |
1570 | ? !may_insert_fast_tracepoints | |
1571 | : !may_insert_tracepoints)) | |
1572 | continue; | |
1573 | ||
35b1e5cc SS |
1574 | t->number_on_target = 0; |
1575 | target_download_tracepoint (t); | |
1576 | t->number_on_target = t->number; | |
7a697b8d | 1577 | } |
35b1e5cc | 1578 | VEC_free (breakpoint_p, tp_vec); |
76a2b958 | 1579 | |
00bf0b85 | 1580 | /* Send down all the trace state variables too. */ |
35b1e5cc | 1581 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) |
782b2b07 | 1582 | { |
00bf0b85 | 1583 | target_download_trace_state_variable (tsv); |
782b2b07 | 1584 | } |
35b1e5cc SS |
1585 | |
1586 | /* Tell target to treat text-like sections as transparent. */ | |
1587 | target_trace_set_readonly_regions (); | |
4daf5ac0 SS |
1588 | /* Set some mode flags. */ |
1589 | target_set_disconnected_tracing (disconnected_tracing); | |
1590 | target_set_circular_trace_buffer (circular_trace_buffer); | |
1042e4c0 | 1591 | |
35b1e5cc SS |
1592 | /* Now insert traps and begin collecting data. */ |
1593 | target_trace_start (); | |
1042e4c0 | 1594 | |
35b1e5cc SS |
1595 | /* Reset our local state. */ |
1596 | set_traceframe_num (-1); | |
1597 | set_tracepoint_num (-1); | |
1598 | set_traceframe_context (NULL); | |
00bf0b85 | 1599 | current_trace_status()->running = 1; |
1042e4c0 SS |
1600 | } |
1601 | ||
f224b49d VP |
1602 | /* tstart command: |
1603 | ||
1604 | Tell target to clear any previous trace experiment. | |
1605 | Walk the list of tracepoints, and send them (and their actions) | |
1606 | to the target. If no errors, | |
1607 | Tell target to start a new trace experiment. */ | |
1608 | ||
1609 | static void | |
1610 | trace_start_command (char *args, int from_tty) | |
1611 | { | |
1612 | dont_repeat (); /* Like "run", dangerous to repeat accidentally. */ | |
1613 | ||
615bcdef SS |
1614 | if (current_trace_status ()->running) |
1615 | { | |
1616 | if (from_tty | |
1617 | && !query (_("A trace is running already. Start a new run? "))) | |
1618 | error (_("New trace run not started.")); | |
1619 | } | |
1620 | ||
f224b49d VP |
1621 | start_tracing (); |
1622 | } | |
1623 | ||
c906108c SS |
1624 | /* tstop command */ |
1625 | static void | |
fba45db2 | 1626 | trace_stop_command (char *args, int from_tty) |
d183932d | 1627 | { |
615bcdef SS |
1628 | if (!current_trace_status ()->running) |
1629 | error (_("Trace is not running.")); | |
1630 | ||
35b1e5cc | 1631 | stop_tracing (); |
c906108c SS |
1632 | } |
1633 | ||
d5551862 | 1634 | void |
f224b49d | 1635 | stop_tracing (void) |
d5551862 | 1636 | { |
35b1e5cc | 1637 | target_trace_stop (); |
00bf0b85 SS |
1638 | /* should change in response to reply? */ |
1639 | current_trace_status ()->running = 0; | |
d5551862 SS |
1640 | } |
1641 | ||
c906108c SS |
1642 | /* tstatus command */ |
1643 | static void | |
fba45db2 | 1644 | trace_status_command (char *args, int from_tty) |
d183932d | 1645 | { |
00bf0b85 SS |
1646 | struct trace_status *ts = current_trace_status (); |
1647 | int status; | |
35b1e5cc | 1648 | |
00bf0b85 SS |
1649 | status = target_get_trace_status (ts); |
1650 | ||
1651 | if (status == -1) | |
1652 | { | |
1653 | if (ts->from_file) | |
1654 | printf_filtered (_("Using a trace file.\n")); | |
1655 | else | |
1656 | { | |
1657 | printf_filtered (_("Trace can not be run on this target.\n")); | |
1658 | return; | |
1659 | } | |
1660 | } | |
1661 | ||
1662 | if (!ts->running_known) | |
1663 | { | |
1664 | printf_filtered (_("Run/stop status is unknown.\n")); | |
1665 | } | |
1666 | else if (ts->running) | |
c906108c | 1667 | { |
35b1e5cc | 1668 | printf_filtered (_("Trace is running on the target.\n")); |
c906108c SS |
1669 | } |
1670 | else | |
00bf0b85 SS |
1671 | { |
1672 | switch (ts->stop_reason) | |
1673 | { | |
1674 | case trace_never_run: | |
1675 | printf_filtered (_("No trace has been run on the target.\n")); | |
1676 | break; | |
1677 | case tstop_command: | |
1678 | printf_filtered (_("Trace stopped by a tstop command.\n")); | |
1679 | break; | |
1680 | case trace_buffer_full: | |
1681 | printf_filtered (_("Trace stopped because the buffer was full.\n")); | |
1682 | break; | |
1683 | case trace_disconnected: | |
1684 | printf_filtered (_("Trace stopped because of disconnection.\n")); | |
1685 | break; | |
1686 | case tracepoint_passcount: | |
00bf0b85 SS |
1687 | printf_filtered (_("Trace stopped by tracepoint %d.\n"), |
1688 | ts->stopping_tracepoint); | |
1689 | break; | |
6c28cbf2 SS |
1690 | case tracepoint_error: |
1691 | if (ts->stopping_tracepoint) | |
3e43a32a MS |
1692 | printf_filtered (_("Trace stopped by an " |
1693 | "error (%s, tracepoint %d).\n"), | |
6c28cbf2 SS |
1694 | ts->error_desc, ts->stopping_tracepoint); |
1695 | else | |
1696 | printf_filtered (_("Trace stopped by an error (%s).\n"), | |
1697 | ts->error_desc); | |
1698 | break; | |
00bf0b85 SS |
1699 | case trace_stop_reason_unknown: |
1700 | printf_filtered (_("Trace stopped for an unknown reason.\n")); | |
1701 | break; | |
1702 | default: | |
1703 | printf_filtered (_("Trace stopped for some other reason (%d).\n"), | |
1704 | ts->stop_reason); | |
1705 | break; | |
1706 | } | |
1707 | } | |
1708 | ||
4daf5ac0 SS |
1709 | if (ts->traceframes_created >= 0 |
1710 | && ts->traceframe_count != ts->traceframes_created) | |
1711 | { | |
3e43a32a MS |
1712 | printf_filtered (_("Buffer contains %d trace " |
1713 | "frames (of %d created total).\n"), | |
4daf5ac0 SS |
1714 | ts->traceframe_count, ts->traceframes_created); |
1715 | } | |
1716 | else if (ts->traceframe_count >= 0) | |
00bf0b85 SS |
1717 | { |
1718 | printf_filtered (_("Collected %d trace frames.\n"), | |
1719 | ts->traceframe_count); | |
1720 | } | |
1721 | ||
4daf5ac0 | 1722 | if (ts->buffer_free >= 0) |
00bf0b85 | 1723 | { |
4daf5ac0 SS |
1724 | if (ts->buffer_size >= 0) |
1725 | { | |
1726 | printf_filtered (_("Trace buffer has %d bytes of %d bytes free"), | |
1727 | ts->buffer_free, ts->buffer_size); | |
1728 | if (ts->buffer_size > 0) | |
1729 | printf_filtered (_(" (%d%% full)"), | |
1730 | ((int) ((((long long) (ts->buffer_size | |
1731 | - ts->buffer_free)) * 100) | |
1732 | / ts->buffer_size))); | |
1733 | printf_filtered (_(".\n")); | |
1734 | } | |
1735 | else | |
1736 | printf_filtered (_("Trace buffer has %d bytes free.\n"), | |
1737 | ts->buffer_free); | |
00bf0b85 | 1738 | } |
35b1e5cc | 1739 | |
33da3f1c SS |
1740 | if (ts->disconnected_tracing) |
1741 | printf_filtered (_("Trace will continue if GDB disconnects.\n")); | |
1742 | else | |
1743 | printf_filtered (_("Trace will stop if GDB disconnects.\n")); | |
1744 | ||
1745 | if (ts->circular_buffer) | |
1746 | printf_filtered (_("Trace buffer is circular.\n")); | |
1747 | ||
00bf0b85 | 1748 | /* Now report on what we're doing with tfind. */ |
35b1e5cc SS |
1749 | if (traceframe_number >= 0) |
1750 | printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"), | |
1751 | traceframe_number, tracepoint_number); | |
1752 | else | |
1753 | printf_filtered (_("Not looking at any trace frame.\n")); | |
c906108c SS |
1754 | } |
1755 | ||
f224b49d VP |
1756 | /* Report the trace status to uiout, in a way suitable for MI, and not |
1757 | suitable for CLI. If ON_STOP is true, suppress a few fields that | |
1758 | are not meaningful in the -trace-stop response. | |
1759 | ||
1760 | The implementation is essentially parallel to trace_status_command, but | |
1761 | merging them will result in unreadable code. */ | |
1762 | void | |
1763 | trace_status_mi (int on_stop) | |
1764 | { | |
1765 | struct trace_status *ts = current_trace_status (); | |
1766 | int status; | |
f224b49d VP |
1767 | |
1768 | status = target_get_trace_status (ts); | |
1769 | ||
1770 | if (status == -1 && !ts->from_file) | |
1771 | { | |
1772 | ui_out_field_string (uiout, "supported", "0"); | |
1773 | return; | |
1774 | } | |
1775 | ||
1776 | if (ts->from_file) | |
1777 | ui_out_field_string (uiout, "supported", "file"); | |
1778 | else if (!on_stop) | |
1779 | ui_out_field_string (uiout, "supported", "1"); | |
1780 | ||
1781 | gdb_assert (ts->running_known); | |
1782 | ||
1783 | if (ts->running) | |
1784 | { | |
1785 | ui_out_field_string (uiout, "running", "1"); | |
1786 | ||
1787 | /* Unlike CLI, do not show the state of 'disconnected-tracing' variable. | |
1788 | Given that the frontend gets the status either on -trace-stop, or from | |
1789 | -trace-status after re-connection, it does not seem like this | |
1790 | information is necessary for anything. It is not necessary for either | |
1791 | figuring the vital state of the target nor for navigation of trace | |
1792 | frames. If the frontend wants to show the current state is some | |
1793 | configure dialog, it can request the value when such dialog is | |
1794 | invoked by the user. */ | |
1795 | } | |
1796 | else | |
1797 | { | |
1798 | char *stop_reason = NULL; | |
1799 | int stopping_tracepoint = -1; | |
1800 | ||
1801 | if (!on_stop) | |
1802 | ui_out_field_string (uiout, "running", "0"); | |
1803 | ||
1804 | if (ts->stop_reason != trace_stop_reason_unknown) | |
1805 | { | |
1806 | switch (ts->stop_reason) | |
1807 | { | |
1808 | case tstop_command: | |
1809 | stop_reason = "request"; | |
1810 | break; | |
1811 | case trace_buffer_full: | |
1812 | stop_reason = "overflow"; | |
1813 | break; | |
1814 | case trace_disconnected: | |
1815 | stop_reason = "disconnection"; | |
1816 | break; | |
1817 | case tracepoint_passcount: | |
1818 | stop_reason = "passcount"; | |
1819 | stopping_tracepoint = ts->stopping_tracepoint; | |
1820 | break; | |
6c28cbf2 SS |
1821 | case tracepoint_error: |
1822 | stop_reason = "error"; | |
1823 | stopping_tracepoint = ts->stopping_tracepoint; | |
1824 | break; | |
f224b49d VP |
1825 | } |
1826 | ||
1827 | if (stop_reason) | |
1828 | { | |
1829 | ui_out_field_string (uiout, "stop-reason", stop_reason); | |
1830 | if (stopping_tracepoint != -1) | |
1831 | ui_out_field_int (uiout, "stopping-tracepoint", | |
1832 | stopping_tracepoint); | |
6c28cbf2 SS |
1833 | if (ts->stop_reason == tracepoint_error) |
1834 | ui_out_field_string (uiout, "error-description", | |
1835 | ts->error_desc); | |
f224b49d VP |
1836 | } |
1837 | } | |
1838 | } | |
1839 | ||
a97153c7 | 1840 | if (ts->traceframe_count != -1) |
f224b49d | 1841 | ui_out_field_int (uiout, "frames", ts->traceframe_count); |
87290684 SS |
1842 | if (ts->traceframes_created != -1) |
1843 | ui_out_field_int (uiout, "frames-created", ts->traceframes_created); | |
a97153c7 PA |
1844 | if (ts->buffer_size != -1) |
1845 | ui_out_field_int (uiout, "buffer-size", ts->buffer_size); | |
1846 | if (ts->buffer_free != -1) | |
1847 | ui_out_field_int (uiout, "buffer-free", ts->buffer_free); | |
1848 | ||
1849 | ui_out_field_int (uiout, "disconnected", ts->disconnected_tracing); | |
1850 | ui_out_field_int (uiout, "circular", ts->circular_buffer); | |
f224b49d VP |
1851 | } |
1852 | ||
33da3f1c SS |
1853 | /* This function handles the details of what to do about an ongoing |
1854 | tracing run if the user has asked to detach or otherwise disconnect | |
1855 | from the target. */ | |
d5551862 | 1856 | void |
33da3f1c | 1857 | disconnect_tracing (int from_tty) |
d5551862 | 1858 | { |
00bf0b85 SS |
1859 | /* It can happen that the target that was tracing went away on its |
1860 | own, and we didn't notice. Get a status update, and if the | |
1861 | current target doesn't even do tracing, then assume it's not | |
1862 | running anymore. */ | |
1863 | if (target_get_trace_status (current_trace_status ()) < 0) | |
1864 | current_trace_status ()->running = 0; | |
1865 | ||
33da3f1c SS |
1866 | /* If running interactively, give the user the option to cancel and |
1867 | then decide what to do differently with the run. Scripts are | |
1868 | just going to disconnect and let the target deal with it, | |
1869 | according to how it's been instructed previously via | |
1870 | disconnected-tracing. */ | |
00bf0b85 | 1871 | if (current_trace_status ()->running && from_tty) |
d5551862 | 1872 | { |
33da3f1c SS |
1873 | if (current_trace_status ()->disconnected_tracing) |
1874 | { | |
3e43a32a MS |
1875 | if (!query (_("Trace is running and will " |
1876 | "continue after detach; detach anyway? "))) | |
33da3f1c SS |
1877 | error (_("Not confirmed.")); |
1878 | } | |
1879 | else | |
1880 | { | |
3e43a32a MS |
1881 | if (!query (_("Trace is running but will " |
1882 | "stop on detach; detach anyway? "))) | |
33da3f1c SS |
1883 | error (_("Not confirmed.")); |
1884 | } | |
d5551862 | 1885 | } |
8b9b7ef8 SS |
1886 | |
1887 | /* Also we want to be out of tfind mode, otherwise things can get | |
1888 | confusing upon reconnection. Just use these calls instead of | |
1889 | full tfind_1 behavior because we're in the middle of detaching, | |
1890 | and there's no point to updating current stack frame etc. */ | |
1891 | set_traceframe_number (-1); | |
1892 | set_traceframe_context (NULL); | |
d5551862 SS |
1893 | } |
1894 | ||
d183932d | 1895 | /* Worker function for the various flavors of the tfind command. */ |
f197e0f1 VP |
1896 | void |
1897 | tfind_1 (enum trace_find_type type, int num, | |
1898 | ULONGEST addr1, ULONGEST addr2, | |
1899 | int from_tty) | |
c906108c SS |
1900 | { |
1901 | int target_frameno = -1, target_tracept = -1; | |
2ce6d6bf | 1902 | struct frame_id old_frame_id = null_frame_id; |
d5551862 | 1903 | struct breakpoint *tp; |
c906108c | 1904 | |
2ce6d6bf SS |
1905 | /* Only try to get the current stack frame if we have a chance of |
1906 | succeeding. In particular, if we're trying to get a first trace | |
1907 | frame while all threads are running, it's not going to succeed, | |
1908 | so leave it with a default value and let the frame comparison | |
1909 | below (correctly) decide to print out the source location of the | |
1910 | trace frame. */ | |
1911 | if (!(type == tfind_number && num == -1) | |
1912 | && (has_stack_frames () || traceframe_number >= 0)) | |
1913 | old_frame_id = get_frame_id (get_current_frame ()); | |
c906108c | 1914 | |
35b1e5cc SS |
1915 | target_frameno = target_trace_find (type, num, addr1, addr2, |
1916 | &target_tracept); | |
1917 | ||
1918 | if (type == tfind_number | |
1919 | && num == -1 | |
1920 | && target_frameno == -1) | |
1921 | { | |
1922 | /* We told the target to get out of tfind mode, and it did. */ | |
1923 | } | |
1924 | else if (target_frameno == -1) | |
1925 | { | |
2ce6d6bf | 1926 | /* A request for a non-existent trace frame has failed. |
35b1e5cc SS |
1927 | Our response will be different, depending on FROM_TTY: |
1928 | ||
1929 | If FROM_TTY is true, meaning that this command was | |
1930 | typed interactively by the user, then give an error | |
1931 | and DO NOT change the state of traceframe_number etc. | |
1932 | ||
1933 | However if FROM_TTY is false, meaning that we're either | |
1934 | in a script, a loop, or a user-defined command, then | |
1935 | DON'T give an error, but DO change the state of | |
1936 | traceframe_number etc. to invalid. | |
1937 | ||
1938 | The rationalle is that if you typed the command, you | |
1939 | might just have committed a typo or something, and you'd | |
1940 | like to NOT lose your current debugging state. However | |
1941 | if you're in a user-defined command or especially in a | |
1942 | loop, then you need a way to detect that the command | |
1943 | failed WITHOUT aborting. This allows you to write | |
1944 | scripts that search thru the trace buffer until the end, | |
1945 | and then continue on to do something else. */ | |
1946 | ||
1947 | if (from_tty) | |
1948 | error (_("Target failed to find requested trace frame.")); | |
1949 | else | |
1950 | { | |
1951 | if (info_verbose) | |
1952 | printf_filtered ("End of trace buffer.\n"); | |
1953 | #if 0 /* dubious now? */ | |
1954 | /* The following will not recurse, since it's | |
1955 | special-cased. */ | |
1956 | trace_find_command ("-1", from_tty); | |
1957 | #endif | |
1958 | } | |
1959 | } | |
1960 | ||
d5551862 SS |
1961 | tp = get_tracepoint_by_number_on_target (target_tracept); |
1962 | ||
35f196d9 | 1963 | reinit_frame_cache (); |
c906108c | 1964 | registers_changed (); |
2f4d8875 | 1965 | target_dcache_invalidate (); |
c906108c | 1966 | set_traceframe_num (target_frameno); |
d5551862 | 1967 | set_tracepoint_num (tp ? tp->number : target_tracept); |
c906108c | 1968 | if (target_frameno == -1) |
fb14de7b | 1969 | set_traceframe_context (NULL); |
c906108c | 1970 | else |
fb14de7b | 1971 | set_traceframe_context (get_current_frame ()); |
c906108c | 1972 | |
f197e0f1 VP |
1973 | if (traceframe_number >= 0) |
1974 | { | |
1975 | /* Use different branches for MI and CLI to make CLI messages | |
1976 | i18n-eable. */ | |
1977 | if (ui_out_is_mi_like_p (uiout)) | |
1978 | { | |
1979 | ui_out_field_string (uiout, "found", "1"); | |
1980 | ui_out_field_int (uiout, "tracepoint", tracepoint_number); | |
1981 | ui_out_field_int (uiout, "traceframe", traceframe_number); | |
1982 | } | |
1983 | else | |
1984 | { | |
1985 | printf_unfiltered (_("Found trace frame %d, tracepoint %d\n"), | |
1986 | traceframe_number, tracepoint_number); | |
1987 | } | |
1988 | } | |
1989 | else | |
1990 | { | |
1991 | if (ui_out_is_mi_like_p (uiout)) | |
1992 | ui_out_field_string (uiout, "found", "0"); | |
4136fdd2 SS |
1993 | else if (type == tfind_number && num == -1) |
1994 | printf_unfiltered (_("No longer looking at any trace frame\n")); | |
1995 | else /* this case may never occur, check */ | |
1996 | printf_unfiltered (_("No trace frame found\n")); | |
f197e0f1 VP |
1997 | } |
1998 | ||
00bf0b85 SS |
1999 | /* If we're in nonstop mode and getting out of looking at trace |
2000 | frames, there won't be any current frame to go back to and | |
2001 | display. */ | |
2002 | if (from_tty | |
2003 | && (has_stack_frames () || traceframe_number >= 0)) | |
c906108c | 2004 | { |
0faf0076 | 2005 | enum print_what print_what; |
c906108c | 2006 | |
2ce6d6bf | 2007 | /* NOTE: in imitation of the step command, try to determine |
d183932d MS |
2008 | whether we have made a transition from one function to |
2009 | another. If so, we'll print the "stack frame" (ie. the new | |
2010 | function and it's arguments) -- otherwise we'll just show the | |
fb14de7b UW |
2011 | new source line. */ |
2012 | ||
2013 | if (frame_id_eq (old_frame_id, | |
2014 | get_frame_id (get_current_frame ()))) | |
0faf0076 | 2015 | print_what = SRC_LINE; |
c906108c | 2016 | else |
0faf0076 | 2017 | print_what = SRC_AND_LOC; |
c906108c | 2018 | |
b04f3ab4 | 2019 | print_stack_frame (get_selected_frame (NULL), 1, print_what); |
c906108c SS |
2020 | do_displays (); |
2021 | } | |
2022 | } | |
2023 | ||
2024 | /* trace_find_command takes a trace frame number n, | |
2025 | sends "QTFrame:<n>" to the target, | |
2026 | and accepts a reply that may contain several optional pieces | |
2027 | of information: a frame number, a tracepoint number, and an | |
2028 | indication of whether this is a trap frame or a stepping frame. | |
2029 | ||
2030 | The minimal response is just "OK" (which indicates that the | |
2031 | target does not give us a frame number or a tracepoint number). | |
2032 | Instead of that, the target may send us a string containing | |
2033 | any combination of: | |
c5aa993b JM |
2034 | F<hexnum> (gives the selected frame number) |
2035 | T<hexnum> (gives the selected tracepoint number) | |
2036 | */ | |
c906108c SS |
2037 | |
2038 | /* tfind command */ | |
2039 | static void | |
fba45db2 | 2040 | trace_find_command (char *args, int from_tty) |
d183932d | 2041 | { /* this should only be called with a numeric argument */ |
c906108c | 2042 | int frameno = -1; |
c906108c | 2043 | |
00bf0b85 | 2044 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc SS |
2045 | error ("May not look at trace frames while trace is running."); |
2046 | ||
2047 | if (args == 0 || *args == 0) | |
2048 | { /* TFIND with no args means find NEXT trace frame. */ | |
2049 | if (traceframe_number == -1) | |
2050 | frameno = 0; /* "next" is first one */ | |
2051 | else | |
2052 | frameno = traceframe_number + 1; | |
2053 | } | |
2054 | else if (0 == strcmp (args, "-")) | |
c906108c | 2055 | { |
35b1e5cc SS |
2056 | if (traceframe_number == -1) |
2057 | error (_("not debugging trace buffer")); | |
2058 | else if (from_tty && traceframe_number == 0) | |
2059 | error (_("already at start of trace buffer")); | |
2060 | ||
2061 | frameno = traceframe_number - 1; | |
2062 | } | |
2063 | /* A hack to work around eval's need for fp to have been collected. */ | |
2064 | else if (0 == strcmp (args, "-1")) | |
2065 | frameno = -1; | |
2066 | else | |
2067 | frameno = parse_and_eval_long (args); | |
c906108c | 2068 | |
35b1e5cc SS |
2069 | if (frameno < -1) |
2070 | error (_("invalid input (%d is less than zero)"), frameno); | |
c906108c | 2071 | |
f197e0f1 | 2072 | tfind_1 (tfind_number, frameno, 0, 0, from_tty); |
c906108c SS |
2073 | } |
2074 | ||
2075 | /* tfind end */ | |
2076 | static void | |
fba45db2 | 2077 | trace_find_end_command (char *args, int from_tty) |
c906108c SS |
2078 | { |
2079 | trace_find_command ("-1", from_tty); | |
2080 | } | |
2081 | ||
2082 | /* tfind none */ | |
2083 | static void | |
fba45db2 | 2084 | trace_find_none_command (char *args, int from_tty) |
c906108c SS |
2085 | { |
2086 | trace_find_command ("-1", from_tty); | |
2087 | } | |
2088 | ||
2089 | /* tfind start */ | |
2090 | static void | |
fba45db2 | 2091 | trace_find_start_command (char *args, int from_tty) |
c906108c SS |
2092 | { |
2093 | trace_find_command ("0", from_tty); | |
2094 | } | |
2095 | ||
2096 | /* tfind pc command */ | |
2097 | static void | |
fba45db2 | 2098 | trace_find_pc_command (char *args, int from_tty) |
d183932d | 2099 | { |
c906108c | 2100 | CORE_ADDR pc; |
c906108c | 2101 | |
00bf0b85 | 2102 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 2103 | error ("May not look at trace frames while trace is running."); |
c906108c | 2104 | |
35b1e5cc SS |
2105 | if (args == 0 || *args == 0) |
2106 | pc = regcache_read_pc (get_current_regcache ()); | |
c906108c | 2107 | else |
35b1e5cc SS |
2108 | pc = parse_and_eval_address (args); |
2109 | ||
f197e0f1 | 2110 | tfind_1 (tfind_pc, 0, pc, 0, from_tty); |
c906108c SS |
2111 | } |
2112 | ||
2113 | /* tfind tracepoint command */ | |
2114 | static void | |
fba45db2 | 2115 | trace_find_tracepoint_command (char *args, int from_tty) |
d183932d | 2116 | { |
c906108c | 2117 | int tdp; |
d5551862 | 2118 | struct breakpoint *tp; |
c906108c | 2119 | |
00bf0b85 | 2120 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 2121 | error ("May not look at trace frames while trace is running."); |
383e5f85 | 2122 | |
35b1e5cc SS |
2123 | if (args == 0 || *args == 0) |
2124 | { | |
2125 | if (tracepoint_number == -1) | |
2126 | error (_("No current tracepoint -- please supply an argument.")); | |
c906108c | 2127 | else |
35b1e5cc | 2128 | tdp = tracepoint_number; /* default is current TDP */ |
c906108c SS |
2129 | } |
2130 | else | |
35b1e5cc SS |
2131 | tdp = parse_and_eval_long (args); |
2132 | ||
2133 | /* If we have the tracepoint on hand, use the number that the | |
2134 | target knows about (which may be different if we disconnected | |
2135 | and reconnected). */ | |
2136 | tp = get_tracepoint (tdp); | |
2137 | if (tp) | |
2138 | tdp = tp->number_on_target; | |
2139 | ||
f197e0f1 | 2140 | tfind_1 (tfind_tp, tdp, 0, 0, from_tty); |
c906108c SS |
2141 | } |
2142 | ||
2143 | /* TFIND LINE command: | |
c5aa993b | 2144 | |
c906108c | 2145 | This command will take a sourceline for argument, just like BREAK |
d183932d | 2146 | or TRACE (ie. anything that "decode_line_1" can handle). |
c5aa993b | 2147 | |
c906108c SS |
2148 | With no argument, this command will find the next trace frame |
2149 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
2150 | ||
2151 | static void | |
fba45db2 | 2152 | trace_find_line_command (char *args, int from_tty) |
d183932d | 2153 | { |
c906108c SS |
2154 | static CORE_ADDR start_pc, end_pc; |
2155 | struct symtabs_and_lines sals; | |
2156 | struct symtab_and_line sal; | |
c906108c SS |
2157 | struct cleanup *old_chain; |
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."); |
5af949e3 | 2161 | |
35b1e5cc SS |
2162 | if (args == 0 || *args == 0) |
2163 | { | |
2164 | sal = find_pc_line (get_frame_pc (get_current_frame ()), 0); | |
2165 | sals.nelts = 1; | |
2166 | sals.sals = (struct symtab_and_line *) | |
2167 | xmalloc (sizeof (struct symtab_and_line)); | |
2168 | sals.sals[0] = sal; | |
2169 | } | |
2170 | else | |
42e08e69 | 2171 | { |
35b1e5cc SS |
2172 | sals = decode_line_spec (args, 1); |
2173 | sal = sals.sals[0]; | |
2174 | } | |
2175 | ||
2176 | old_chain = make_cleanup (xfree, sals.sals); | |
2177 | if (sal.symtab == 0) | |
42e08e69 SS |
2178 | error (_("No line number information available.")); |
2179 | ||
2180 | if (sal.line > 0 && find_line_pc_range (sal, &start_pc, &end_pc)) | |
35b1e5cc SS |
2181 | { |
2182 | if (start_pc == end_pc) | |
2183 | { | |
2184 | printf_filtered ("Line %d of \"%s\"", | |
2185 | sal.line, sal.symtab->filename); | |
2186 | wrap_here (" "); | |
2187 | printf_filtered (" is at address "); | |
2188 | print_address (get_current_arch (), start_pc, gdb_stdout); | |
2189 | wrap_here (" "); | |
2190 | printf_filtered (" but contains no code.\n"); | |
2191 | sal = find_pc_line (start_pc, 0); | |
2192 | if (sal.line > 0 | |
2193 | && find_line_pc_range (sal, &start_pc, &end_pc) | |
2194 | && start_pc != end_pc) | |
2195 | printf_filtered ("Attempting to find line %d instead.\n", | |
2196 | sal.line); | |
2197 | else | |
2198 | error (_("Cannot find a good line.")); | |
2199 | } | |
2200 | } | |
2201 | else | |
2202 | /* Is there any case in which we get here, and have an address | |
2203 | which the user would want to see? If we have debugging | |
2204 | symbols and no line numbers? */ | |
2205 | error (_("Line number %d is out of range for \"%s\"."), | |
2206 | sal.line, sal.symtab->filename); | |
2207 | ||
2208 | /* Find within range of stated line. */ | |
2209 | if (args && *args) | |
f197e0f1 | 2210 | tfind_1 (tfind_range, 0, start_pc, end_pc - 1, from_tty); |
c906108c | 2211 | else |
f197e0f1 | 2212 | tfind_1 (tfind_outside, 0, start_pc, end_pc - 1, from_tty); |
35b1e5cc | 2213 | do_cleanups (old_chain); |
c906108c SS |
2214 | } |
2215 | ||
2216 | /* tfind range command */ | |
2217 | static void | |
fba45db2 | 2218 | trace_find_range_command (char *args, int from_tty) |
104c1213 | 2219 | { |
c906108c SS |
2220 | static CORE_ADDR start, stop; |
2221 | char *tmp; | |
2222 | ||
00bf0b85 | 2223 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 2224 | error ("May not look at trace frames while trace is running."); |
c906108c | 2225 | |
35b1e5cc SS |
2226 | if (args == 0 || *args == 0) |
2227 | { /* XXX FIXME: what should default behavior be? */ | |
2228 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); | |
2229 | return; | |
2230 | } | |
c906108c | 2231 | |
35b1e5cc SS |
2232 | if (0 != (tmp = strchr (args, ','))) |
2233 | { | |
2234 | *tmp++ = '\0'; /* terminate start address */ | |
2235 | while (isspace ((int) *tmp)) | |
2236 | tmp++; | |
2237 | start = parse_and_eval_address (args); | |
2238 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
2239 | } |
2240 | else | |
35b1e5cc SS |
2241 | { /* no explicit end address? */ |
2242 | start = parse_and_eval_address (args); | |
2243 | stop = start + 1; /* ??? */ | |
2244 | } | |
2245 | ||
f197e0f1 | 2246 | tfind_1 (tfind_range, 0, start, stop, from_tty); |
c906108c SS |
2247 | } |
2248 | ||
2249 | /* tfind outside command */ | |
2250 | static void | |
fba45db2 | 2251 | trace_find_outside_command (char *args, int from_tty) |
104c1213 | 2252 | { |
c906108c SS |
2253 | CORE_ADDR start, stop; |
2254 | char *tmp; | |
2255 | ||
00bf0b85 | 2256 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 2257 | error ("May not look at trace frames while trace is running."); |
c906108c | 2258 | |
35b1e5cc SS |
2259 | if (args == 0 || *args == 0) |
2260 | { /* XXX FIXME: what should default behavior be? */ | |
2261 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); | |
2262 | return; | |
2263 | } | |
c906108c | 2264 | |
35b1e5cc SS |
2265 | if (0 != (tmp = strchr (args, ','))) |
2266 | { | |
2267 | *tmp++ = '\0'; /* terminate start address */ | |
2268 | while (isspace ((int) *tmp)) | |
2269 | tmp++; | |
2270 | start = parse_and_eval_address (args); | |
2271 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
2272 | } |
2273 | else | |
35b1e5cc SS |
2274 | { /* no explicit end address? */ |
2275 | start = parse_and_eval_address (args); | |
2276 | stop = start + 1; /* ??? */ | |
2277 | } | |
2278 | ||
f197e0f1 | 2279 | tfind_1 (tfind_outside, 0, start, stop, from_tty); |
c906108c SS |
2280 | } |
2281 | ||
c906108c SS |
2282 | /* info scope command: list the locals for a scope. */ |
2283 | static void | |
fba45db2 | 2284 | scope_info (char *args, int from_tty) |
c906108c | 2285 | { |
c906108c SS |
2286 | struct symtabs_and_lines sals; |
2287 | struct symbol *sym; | |
2288 | struct minimal_symbol *msym; | |
2289 | struct block *block; | |
2290 | char **canonical, *symname, *save_args = args; | |
de4f826b DC |
2291 | struct dict_iterator iter; |
2292 | int j, count = 0; | |
768a979c UW |
2293 | struct gdbarch *gdbarch; |
2294 | int regno; | |
c906108c SS |
2295 | |
2296 | if (args == 0 || *args == 0) | |
3e43a32a MS |
2297 | error (_("requires an argument (function, " |
2298 | "line or *addr) to define a scope")); | |
c906108c | 2299 | |
68219205 | 2300 | sals = decode_line_1 (&args, 1, NULL, 0, &canonical, NULL); |
c906108c | 2301 | if (sals.nelts == 0) |
450bd37b | 2302 | return; /* presumably decode_line_1 has already warned */ |
c906108c SS |
2303 | |
2304 | /* Resolve line numbers to PC */ | |
2305 | resolve_sal_pc (&sals.sals[0]); | |
2306 | block = block_for_pc (sals.sals[0].pc); | |
2307 | ||
2308 | while (block != 0) | |
2309 | { | |
c5aa993b | 2310 | QUIT; /* allow user to bail out with ^C */ |
de4f826b | 2311 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 2312 | { |
c5aa993b | 2313 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
2314 | if (count == 0) |
2315 | printf_filtered ("Scope for %s:\n", save_args); | |
2316 | count++; | |
e88c90f2 | 2317 | |
3567439c | 2318 | symname = SYMBOL_PRINT_NAME (sym); |
c906108c | 2319 | if (symname == NULL || *symname == '\0') |
c5aa993b | 2320 | continue; /* probably botched, certainly useless */ |
c906108c | 2321 | |
768a979c UW |
2322 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
2323 | ||
c906108c | 2324 | printf_filtered ("Symbol %s is ", symname); |
c5aa993b JM |
2325 | switch (SYMBOL_CLASS (sym)) |
2326 | { | |
2327 | default: | |
2328 | case LOC_UNDEF: /* messed up symbol? */ | |
2329 | printf_filtered ("a bogus symbol, class %d.\n", | |
2330 | SYMBOL_CLASS (sym)); | |
2331 | count--; /* don't count this one */ | |
2332 | continue; | |
2333 | case LOC_CONST: | |
104c1213 | 2334 | printf_filtered ("a constant with value %ld (0x%lx)", |
c5aa993b JM |
2335 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); |
2336 | break; | |
2337 | case LOC_CONST_BYTES: | |
2338 | printf_filtered ("constant bytes: "); | |
2339 | if (SYMBOL_TYPE (sym)) | |
2340 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) | |
2341 | fprintf_filtered (gdb_stdout, " %02x", | |
2342 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); | |
2343 | break; | |
2344 | case LOC_STATIC: | |
2345 | printf_filtered ("in static storage at address "); | |
5af949e3 UW |
2346 | printf_filtered ("%s", paddress (gdbarch, |
2347 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2348 | break; |
2349 | case LOC_REGISTER: | |
768a979c UW |
2350 | /* GDBARCH is the architecture associated with the objfile |
2351 | the symbol is defined in; the target architecture may be | |
2352 | different, and may provide additional registers. However, | |
2353 | we do not know the target architecture at this point. | |
2354 | We assume the objfile architecture will contain all the | |
2355 | standard registers that occur in debug info in that | |
2356 | objfile. */ | |
3e43a32a MS |
2357 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, |
2358 | gdbarch); | |
768a979c | 2359 | |
2a2d4dc3 AS |
2360 | if (SYMBOL_IS_ARGUMENT (sym)) |
2361 | printf_filtered ("an argument in register $%s", | |
768a979c | 2362 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
2363 | else |
2364 | printf_filtered ("a local variable in register $%s", | |
768a979c | 2365 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2366 | break; |
2367 | case LOC_ARG: | |
c5aa993b JM |
2368 | printf_filtered ("an argument at stack/frame offset %ld", |
2369 | SYMBOL_VALUE (sym)); | |
2370 | break; | |
2371 | case LOC_LOCAL: | |
2372 | printf_filtered ("a local variable at frame offset %ld", | |
2373 | SYMBOL_VALUE (sym)); | |
2374 | break; | |
2375 | case LOC_REF_ARG: | |
2376 | printf_filtered ("a reference argument at offset %ld", | |
2377 | SYMBOL_VALUE (sym)); | |
2378 | break; | |
c5aa993b | 2379 | case LOC_REGPARM_ADDR: |
768a979c | 2380 | /* Note comment at LOC_REGISTER. */ |
3e43a32a MS |
2381 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, |
2382 | gdbarch); | |
c5aa993b | 2383 | printf_filtered ("the address of an argument, in register $%s", |
768a979c | 2384 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2385 | break; |
2386 | case LOC_TYPEDEF: | |
2387 | printf_filtered ("a typedef.\n"); | |
2388 | continue; | |
2389 | case LOC_LABEL: | |
2390 | printf_filtered ("a label at address "); | |
5af949e3 UW |
2391 | printf_filtered ("%s", paddress (gdbarch, |
2392 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2393 | break; |
2394 | case LOC_BLOCK: | |
2395 | printf_filtered ("a function at address "); | |
5af949e3 UW |
2396 | printf_filtered ("%s", |
2397 | paddress (gdbarch, BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))); | |
c5aa993b | 2398 | break; |
c5aa993b | 2399 | case LOC_UNRESOLVED: |
3567439c | 2400 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), |
450bd37b | 2401 | NULL, NULL); |
c5aa993b JM |
2402 | if (msym == NULL) |
2403 | printf_filtered ("Unresolved Static"); | |
2404 | else | |
2405 | { | |
2406 | printf_filtered ("static storage at address "); | |
5af949e3 UW |
2407 | printf_filtered ("%s", |
2408 | paddress (gdbarch, SYMBOL_VALUE_ADDRESS (msym))); | |
c5aa993b JM |
2409 | } |
2410 | break; | |
2411 | case LOC_OPTIMIZED_OUT: | |
2412 | printf_filtered ("optimized out.\n"); | |
2413 | continue; | |
450bd37b | 2414 | case LOC_COMPUTED: |
08922a10 SS |
2415 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, |
2416 | BLOCK_START (block), | |
2417 | gdb_stdout); | |
450bd37b | 2418 | break; |
c5aa993b | 2419 | } |
c906108c | 2420 | if (SYMBOL_TYPE (sym)) |
c5aa993b | 2421 | printf_filtered (", length %d.\n", |
450bd37b | 2422 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); |
c906108c SS |
2423 | } |
2424 | if (BLOCK_FUNCTION (block)) | |
2425 | break; | |
2426 | else | |
2427 | block = BLOCK_SUPERBLOCK (block); | |
2428 | } | |
2429 | if (count <= 0) | |
2430 | printf_filtered ("Scope for %s contains no locals or arguments.\n", | |
2431 | save_args); | |
2432 | } | |
2433 | ||
2434 | /* worker function (cleanup) */ | |
2435 | static void | |
710b33bd | 2436 | replace_comma (void *data) |
c906108c | 2437 | { |
710b33bd | 2438 | char *comma = data; |
c906108c SS |
2439 | *comma = ','; |
2440 | } | |
2441 | ||
afd02f27 PA |
2442 | |
2443 | /* Helper for trace_dump_command. Dump the action list starting at | |
2444 | ACTION. STEPPING_ACTIONS is true if we're iterating over the | |
2445 | actions of the body of a while-stepping action. STEPPING_FRAME is | |
2446 | set if the current traceframe was determined to be a while-stepping | |
2447 | traceframe. */ | |
2448 | ||
c906108c | 2449 | static void |
afd02f27 PA |
2450 | trace_dump_actions (struct command_line *action, |
2451 | int stepping_actions, int stepping_frame, | |
2452 | int from_tty) | |
c906108c | 2453 | { |
c5aa993b | 2454 | char *action_exp, *next_comma; |
c906108c | 2455 | |
afd02f27 | 2456 | for (; action != NULL; action = action->next) |
c906108c SS |
2457 | { |
2458 | struct cmd_list_element *cmd; | |
2459 | ||
c5aa993b | 2460 | QUIT; /* allow user to bail out with ^C */ |
a7bdde9e | 2461 | action_exp = action->line; |
104c1213 | 2462 | while (isspace ((int) *action_exp)) |
c906108c SS |
2463 | action_exp++; |
2464 | ||
2465 | /* The collection actions to be done while stepping are | |
c5aa993b | 2466 | bracketed by the commands "while-stepping" and "end". */ |
c906108c SS |
2467 | |
2468 | if (*action_exp == '#') /* comment line */ | |
2469 | continue; | |
2470 | ||
2471 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
2472 | if (cmd == 0) | |
8a3fe4f8 | 2473 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 2474 | |
bbaca940 | 2475 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
afd02f27 PA |
2476 | { |
2477 | int i; | |
2478 | ||
2479 | for (i = 0; i < action->body_count; ++i) | |
2480 | trace_dump_actions (action->body_list[i], | |
2481 | 1, stepping_frame, from_tty); | |
2482 | } | |
bbaca940 | 2483 | else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c SS |
2484 | { |
2485 | /* Display the collected data. | |
d183932d MS |
2486 | For the trap frame, display only what was collected at |
2487 | the trap. Likewise for stepping frames, display only | |
2488 | what was collected while stepping. This means that the | |
2489 | two boolean variables, STEPPING_FRAME and | |
2490 | STEPPING_ACTIONS should be equal. */ | |
c906108c SS |
2491 | if (stepping_frame == stepping_actions) |
2492 | { | |
c5aa993b JM |
2493 | do |
2494 | { /* repeat over a comma-separated list */ | |
2495 | QUIT; /* allow user to bail out with ^C */ | |
2496 | if (*action_exp == ',') | |
2497 | action_exp++; | |
104c1213 | 2498 | while (isspace ((int) *action_exp)) |
c5aa993b JM |
2499 | action_exp++; |
2500 | ||
2501 | next_comma = strchr (action_exp, ','); | |
2502 | ||
2503 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2504 | registers_info (NULL, from_tty); | |
2505 | else if (0 == strncasecmp (action_exp, "$loc", 4)) | |
2506 | locals_info (NULL, from_tty); | |
2507 | else if (0 == strncasecmp (action_exp, "$arg", 4)) | |
2508 | args_info (NULL, from_tty); | |
2509 | else | |
2510 | { /* variable */ | |
2511 | if (next_comma) | |
2512 | { | |
2513 | make_cleanup (replace_comma, next_comma); | |
2514 | *next_comma = '\0'; | |
2515 | } | |
2516 | printf_filtered ("%s = ", action_exp); | |
2517 | output_command (action_exp, from_tty); | |
2518 | printf_filtered ("\n"); | |
2519 | } | |
2520 | if (next_comma) | |
2521 | *next_comma = ','; | |
2522 | action_exp = next_comma; | |
2523 | } | |
2524 | while (action_exp && *action_exp == ','); | |
c906108c SS |
2525 | } |
2526 | } | |
2527 | } | |
afd02f27 PA |
2528 | } |
2529 | ||
2530 | /* The tdump command. */ | |
2531 | ||
2532 | static void | |
2533 | trace_dump_command (char *args, int from_tty) | |
2534 | { | |
2535 | struct regcache *regcache; | |
2536 | struct breakpoint *t; | |
2537 | int stepping_frame = 0; | |
2538 | struct bp_location *loc; | |
2114d44c SS |
2539 | char *line, *default_collect_line = NULL; |
2540 | struct command_line *actions, *default_collect_action = NULL; | |
2541 | struct cleanup *old_chain = NULL; | |
afd02f27 PA |
2542 | |
2543 | if (tracepoint_number == -1) | |
2544 | { | |
2545 | warning (_("No current trace frame.")); | |
2546 | return; | |
2547 | } | |
2548 | ||
2549 | t = get_tracepoint (tracepoint_number); | |
2550 | ||
2551 | if (t == NULL) | |
2552 | error (_("No known tracepoint matches 'current' tracepoint #%d."), | |
2553 | tracepoint_number); | |
2554 | ||
2555 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", | |
2556 | tracepoint_number, traceframe_number); | |
2557 | ||
2558 | /* The current frame is a trap frame if the frame PC is equal | |
2559 | to the tracepoint PC. If not, then the current frame was | |
2560 | collected during single-stepping. */ | |
2561 | ||
2562 | regcache = get_current_regcache (); | |
2563 | ||
2564 | /* If the traceframe's address matches any of the tracepoint's | |
2565 | locations, assume it is a direct hit rather than a while-stepping | |
2566 | frame. (FIXME this is not reliable, should record each frame's | |
2567 | type.) */ | |
2568 | stepping_frame = 1; | |
2569 | for (loc = t->loc; loc; loc = loc->next) | |
2570 | if (loc->address == regcache_read_pc (regcache)) | |
2571 | stepping_frame = 0; | |
2572 | ||
2114d44c SS |
2573 | actions = breakpoint_commands (t); |
2574 | ||
2575 | /* If there is a default-collect list, make up a collect command, | |
2576 | prepend to the tracepoint's commands, and pass the whole mess to | |
2577 | the trace dump scanner. We need to validate because | |
2578 | default-collect might have been junked since the trace run. */ | |
2579 | if (*default_collect) | |
2580 | { | |
2581 | default_collect_line = xstrprintf ("collect %s", default_collect); | |
2582 | old_chain = make_cleanup (xfree, default_collect_line); | |
2583 | line = default_collect_line; | |
2584 | validate_actionline (&line, t); | |
2585 | default_collect_action = xmalloc (sizeof (struct command_line)); | |
2586 | make_cleanup (xfree, default_collect_action); | |
2587 | default_collect_action->next = actions; | |
2588 | default_collect_action->line = line; | |
2589 | actions = default_collect_action; | |
2590 | } | |
2591 | ||
2592 | trace_dump_actions (actions, 0, stepping_frame, from_tty); | |
2593 | ||
2594 | if (*default_collect) | |
2595 | do_cleanups (old_chain); | |
c906108c SS |
2596 | } |
2597 | ||
409873ef SS |
2598 | /* Encode a piece of a tracepoint's source-level definition in a form |
2599 | that is suitable for both protocol and saving in files. */ | |
2600 | /* This version does not do multiple encodes for long strings; it should | |
2601 | return an offset to the next piece to encode. FIXME */ | |
2602 | ||
2603 | extern int | |
2604 | encode_source_string (int tpnum, ULONGEST addr, | |
2605 | char *srctype, char *src, char *buf, int buf_size) | |
2606 | { | |
2607 | if (80 + strlen (srctype) > buf_size) | |
2608 | error (_("Buffer too small for source encoding")); | |
2609 | sprintf (buf, "%x:%s:%s:%x:%x:", | |
3e43a32a MS |
2610 | tpnum, phex_nz (addr, sizeof (addr)), |
2611 | srctype, 0, (int) strlen (src)); | |
409873ef SS |
2612 | if (strlen (buf) + strlen (src) * 2 >= buf_size) |
2613 | error (_("Source string too long for buffer")); | |
2614 | bin2hex (src, buf + strlen (buf), 0); | |
2615 | return -1; | |
2616 | } | |
2617 | ||
00bf0b85 SS |
2618 | extern int trace_regblock_size; |
2619 | ||
011aacb0 VP |
2620 | /* Save tracepoint data to file named FILENAME. If TARGET_DOES_SAVE is |
2621 | non-zero, the save is performed on the target, otherwise GDB obtains all | |
2622 | trace data and saves it locally. */ | |
2623 | ||
2624 | void | |
2625 | trace_save (const char *filename, int target_does_save) | |
00bf0b85 | 2626 | { |
00bf0b85 | 2627 | struct cleanup *cleanup; |
011aacb0 | 2628 | char *pathname; |
00bf0b85 SS |
2629 | struct trace_status *ts = current_trace_status (); |
2630 | int err, status; | |
2631 | FILE *fp; | |
2632 | struct uploaded_tp *uploaded_tps = NULL, *utp; | |
2633 | struct uploaded_tsv *uploaded_tsvs = NULL, *utsv; | |
2634 | int a; | |
3149d8c1 | 2635 | char *act; |
00bf0b85 SS |
2636 | LONGEST gotten = 0; |
2637 | ULONGEST offset = 0; | |
2638 | #define MAX_TRACE_UPLOAD 2000 | |
2639 | gdb_byte buf[MAX_TRACE_UPLOAD]; | |
98e03262 | 2640 | int written; |
00bf0b85 | 2641 | |
00bf0b85 SS |
2642 | /* If the target is to save the data to a file on its own, then just |
2643 | send the command and be done with it. */ | |
2644 | if (target_does_save) | |
2645 | { | |
2646 | err = target_save_trace_data (filename); | |
2647 | if (err < 0) | |
2648 | error (_("Target failed to save trace data to '%s'."), | |
2649 | filename); | |
2650 | return; | |
2651 | } | |
2652 | ||
2653 | /* Get the trace status first before opening the file, so if the | |
2654 | target is losing, we can get out without touching files. */ | |
2655 | status = target_get_trace_status (ts); | |
2656 | ||
011aacb0 | 2657 | pathname = tilde_expand (filename); |
00bf0b85 SS |
2658 | cleanup = make_cleanup (xfree, pathname); |
2659 | ||
105c2d85 | 2660 | fp = fopen (pathname, "wb"); |
00bf0b85 SS |
2661 | if (!fp) |
2662 | error (_("Unable to open file '%s' for saving trace data (%s)"), | |
011aacb0 | 2663 | filename, safe_strerror (errno)); |
00bf0b85 SS |
2664 | make_cleanup_fclose (fp); |
2665 | ||
2666 | /* Write a file header, with a high-bit-set char to indicate a | |
2667 | binary file, plus a hint as what this file is, and a version | |
2668 | number in case of future needs. */ | |
98e03262 | 2669 | written = fwrite ("\x7fTRACE0\n", 8, 1, fp); |
409873ef | 2670 | if (written < 1) |
98e03262 | 2671 | perror_with_name (pathname); |
00bf0b85 SS |
2672 | |
2673 | /* Write descriptive info. */ | |
2674 | ||
2675 | /* Write out the size of a register block. */ | |
2676 | fprintf (fp, "R %x\n", trace_regblock_size); | |
2677 | ||
2678 | /* Write out status of the tracing run (aka "tstatus" info). */ | |
6c28cbf2 SS |
2679 | fprintf (fp, "status %c;%s", |
2680 | (ts->running ? '1' : '0'), stop_reason_names[ts->stop_reason]); | |
6c28cbf2 SS |
2681 | if (ts->stop_reason == tracepoint_error) |
2682 | { | |
2683 | char *buf = (char *) alloca (strlen (ts->error_desc) * 2 + 1); | |
5d502164 | 2684 | |
6c28cbf2 | 2685 | bin2hex ((gdb_byte *) ts->error_desc, buf, 0); |
610197fd | 2686 | fprintf (fp, ":%s", buf); |
6c28cbf2 SS |
2687 | } |
2688 | fprintf (fp, ":%x", ts->stopping_tracepoint); | |
4daf5ac0 SS |
2689 | if (ts->traceframe_count >= 0) |
2690 | fprintf (fp, ";tframes:%x", ts->traceframe_count); | |
2691 | if (ts->traceframes_created >= 0) | |
2692 | fprintf (fp, ";tcreated:%x", ts->traceframes_created); | |
2693 | if (ts->buffer_free >= 0) | |
2694 | fprintf (fp, ";tfree:%x", ts->buffer_free); | |
2695 | if (ts->buffer_size >= 0) | |
2696 | fprintf (fp, ";tsize:%x", ts->buffer_size); | |
33da3f1c SS |
2697 | if (ts->disconnected_tracing) |
2698 | fprintf (fp, ";disconn:%x", ts->disconnected_tracing); | |
2699 | if (ts->circular_buffer) | |
2700 | fprintf (fp, ";circular:%x", ts->circular_buffer); | |
4daf5ac0 | 2701 | fprintf (fp, "\n"); |
00bf0b85 SS |
2702 | |
2703 | /* Note that we want to upload tracepoints and save those, rather | |
2704 | than simply writing out the local ones, because the user may have | |
2705 | changed tracepoints in GDB in preparation for a future tracing | |
2706 | run, or maybe just mass-deleted all types of breakpoints as part | |
2707 | of cleaning up. So as not to contaminate the session, leave the | |
2708 | data in its uploaded form, don't make into real tracepoints. */ | |
2709 | ||
2710 | /* Get trace state variables first, they may be checked when parsing | |
2711 | uploaded commands. */ | |
2712 | ||
2713 | target_upload_trace_state_variables (&uploaded_tsvs); | |
2714 | ||
2715 | for (utsv = uploaded_tsvs; utsv; utsv = utsv->next) | |
2716 | { | |
2717 | char *buf = ""; | |
2718 | ||
2719 | if (utsv->name) | |
2720 | { | |
2721 | buf = (char *) xmalloc (strlen (utsv->name) * 2 + 1); | |
2722 | bin2hex ((gdb_byte *) (utsv->name), buf, 0); | |
2723 | } | |
2724 | ||
2725 | fprintf (fp, "tsv %x:%s:%x:%s\n", | |
2726 | utsv->number, phex_nz (utsv->initial_value, 8), | |
2727 | utsv->builtin, buf); | |
2728 | ||
2729 | if (utsv->name) | |
2730 | xfree (buf); | |
2731 | } | |
2732 | ||
2733 | free_uploaded_tsvs (&uploaded_tsvs); | |
2734 | ||
2735 | target_upload_tracepoints (&uploaded_tps); | |
2736 | ||
2737 | for (utp = uploaded_tps; utp; utp = utp->next) | |
2738 | { | |
2739 | fprintf (fp, "tp T%x:%s:%c:%x:%x", | |
2740 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), | |
2741 | (utp->enabled ? 'E' : 'D'), utp->step, utp->pass); | |
2742 | if (utp->type == bp_fast_tracepoint) | |
2743 | fprintf (fp, ":F%x", utp->orig_size); | |
2744 | if (utp->cond) | |
2745 | fprintf (fp, ":X%x,%s", (unsigned int) strlen (utp->cond) / 2, | |
2746 | utp->cond); | |
2747 | fprintf (fp, "\n"); | |
3149d8c1 | 2748 | for (a = 0; VEC_iterate (char_ptr, utp->actions, a, act); ++a) |
00bf0b85 | 2749 | fprintf (fp, "tp A%x:%s:%s\n", |
3149d8c1 | 2750 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), act); |
0a2a54b8 | 2751 | for (a = 0; VEC_iterate (char_ptr, utp->step_actions, a, act); ++a) |
00bf0b85 | 2752 | fprintf (fp, "tp S%x:%s:%s\n", |
3149d8c1 | 2753 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), act); |
409873ef SS |
2754 | if (utp->at_string) |
2755 | { | |
2756 | encode_source_string (utp->number, utp->addr, | |
2757 | "at", utp->at_string, buf, MAX_TRACE_UPLOAD); | |
2758 | fprintf (fp, "tp Z%s\n", buf); | |
2759 | } | |
2760 | if (utp->cond_string) | |
2761 | { | |
2762 | encode_source_string (utp->number, utp->addr, | |
3e43a32a MS |
2763 | "cond", utp->cond_string, |
2764 | buf, MAX_TRACE_UPLOAD); | |
409873ef SS |
2765 | fprintf (fp, "tp Z%s\n", buf); |
2766 | } | |
3149d8c1 | 2767 | for (a = 0; VEC_iterate (char_ptr, utp->cmd_strings, a, act); ++a) |
409873ef | 2768 | { |
3149d8c1 | 2769 | encode_source_string (utp->number, utp->addr, "cmd", act, |
409873ef SS |
2770 | buf, MAX_TRACE_UPLOAD); |
2771 | fprintf (fp, "tp Z%s\n", buf); | |
2772 | } | |
00bf0b85 SS |
2773 | } |
2774 | ||
2775 | free_uploaded_tps (&uploaded_tps); | |
2776 | ||
2777 | /* Mark the end of the definition section. */ | |
2778 | fprintf (fp, "\n"); | |
2779 | ||
2780 | /* Get and write the trace data proper. We ask for big blocks, in | |
2781 | the hopes of efficiency, but will take less if the target has | |
2782 | packet size limitations or some such. */ | |
2783 | while (1) | |
2784 | { | |
2785 | gotten = target_get_raw_trace_data (buf, offset, MAX_TRACE_UPLOAD); | |
2786 | if (gotten < 0) | |
2787 | error (_("Failure to get requested trace buffer data")); | |
2788 | /* No more data is forthcoming, we're done. */ | |
2789 | if (gotten == 0) | |
2790 | break; | |
98e03262 | 2791 | written = fwrite (buf, gotten, 1, fp); |
409873ef | 2792 | if (written < 1) |
98e03262 | 2793 | perror_with_name (pathname); |
00bf0b85 SS |
2794 | offset += gotten; |
2795 | } | |
2796 | ||
409873ef | 2797 | /* Mark the end of trace data. (We know that gotten is 0 at this point.) */ |
98e03262 | 2798 | written = fwrite (&gotten, 4, 1, fp); |
409873ef | 2799 | if (written < 1) |
98e03262 | 2800 | perror_with_name (pathname); |
00bf0b85 SS |
2801 | |
2802 | do_cleanups (cleanup); | |
011aacb0 VP |
2803 | } |
2804 | ||
2805 | static void | |
2806 | trace_save_command (char *args, int from_tty) | |
2807 | { | |
2808 | int target_does_save = 0; | |
2809 | char **argv; | |
2810 | char *filename = NULL; | |
2811 | struct cleanup *back_to; | |
2812 | ||
2813 | if (args == NULL) | |
2814 | error_no_arg (_("file in which to save trace data")); | |
2815 | ||
2816 | argv = gdb_buildargv (args); | |
2817 | back_to = make_cleanup_freeargv (argv); | |
2818 | ||
2819 | for (; *argv; ++argv) | |
2820 | { | |
2821 | if (strcmp (*argv, "-r") == 0) | |
2822 | target_does_save = 1; | |
2823 | else if (**argv == '-') | |
2824 | error (_("unknown option `%s'"), *argv); | |
2825 | else | |
2826 | filename = *argv; | |
2827 | } | |
2828 | ||
2829 | if (!filename) | |
2830 | error_no_arg (_("file in which to save trace data")); | |
2831 | ||
2832 | trace_save (filename, target_does_save); | |
2833 | ||
00bf0b85 SS |
2834 | if (from_tty) |
2835 | printf_filtered (_("Trace data saved to file '%s'.\n"), args); | |
011aacb0 VP |
2836 | |
2837 | do_cleanups (back_to); | |
00bf0b85 SS |
2838 | } |
2839 | ||
d5551862 SS |
2840 | /* Tell the target what to do with an ongoing tracing run if GDB |
2841 | disconnects for some reason. */ | |
2842 | ||
2843 | void | |
2844 | send_disconnected_tracing_value (int value) | |
2845 | { | |
35b1e5cc | 2846 | target_set_disconnected_tracing (value); |
d5551862 SS |
2847 | } |
2848 | ||
2849 | static void | |
2850 | set_disconnected_tracing (char *args, int from_tty, | |
2851 | struct cmd_list_element *c) | |
2852 | { | |
2853 | send_disconnected_tracing_value (disconnected_tracing); | |
2854 | } | |
2855 | ||
4daf5ac0 SS |
2856 | static void |
2857 | set_circular_trace_buffer (char *args, int from_tty, | |
2858 | struct cmd_list_element *c) | |
2859 | { | |
2860 | target_set_circular_trace_buffer (circular_trace_buffer); | |
2861 | } | |
2862 | ||
c906108c SS |
2863 | /* Convert the memory pointed to by mem into hex, placing result in buf. |
2864 | * Return a pointer to the last char put in buf (null) | |
2865 | * "stolen" from sparc-stub.c | |
2866 | */ | |
2867 | ||
c5aa993b | 2868 | static const char hexchars[] = "0123456789abcdef"; |
c906108c | 2869 | |
47b667de AC |
2870 | static char * |
2871 | mem2hex (gdb_byte *mem, char *buf, int count) | |
c906108c | 2872 | { |
47b667de | 2873 | gdb_byte ch; |
c906108c SS |
2874 | |
2875 | while (count-- > 0) | |
2876 | { | |
2877 | ch = *mem++; | |
2878 | ||
2879 | *buf++ = hexchars[ch >> 4]; | |
2880 | *buf++ = hexchars[ch & 0xf]; | |
2881 | } | |
2882 | ||
2883 | *buf = 0; | |
2884 | ||
2885 | return buf; | |
2886 | } | |
2887 | ||
c5aa993b | 2888 | int |
fba45db2 | 2889 | get_traceframe_number (void) |
c906108c | 2890 | { |
c5aa993b | 2891 | return traceframe_number; |
c906108c SS |
2892 | } |
2893 | ||
06cd862c PA |
2894 | /* Make the traceframe NUM be the current trace frame. Does nothing |
2895 | if NUM is already current. */ | |
2896 | ||
2897 | void | |
2898 | set_traceframe_number (int num) | |
2899 | { | |
2900 | int newnum; | |
2901 | ||
2902 | if (traceframe_number == num) | |
2903 | { | |
2904 | /* Nothing to do. */ | |
2905 | return; | |
2906 | } | |
2907 | ||
2908 | newnum = target_trace_find (tfind_number, num, 0, 0, NULL); | |
2909 | ||
2910 | if (newnum != num) | |
2911 | warning (_("could not change traceframe")); | |
2912 | ||
2913 | traceframe_number = newnum; | |
2914 | ||
2915 | /* Changing the traceframe changes our view of registers and of the | |
2916 | frame chain. */ | |
2917 | registers_changed (); | |
2918 | } | |
2919 | ||
2920 | /* A cleanup used when switching away and back from tfind mode. */ | |
2921 | ||
2922 | struct current_traceframe_cleanup | |
2923 | { | |
2924 | /* The traceframe we were inspecting. */ | |
2925 | int traceframe_number; | |
2926 | }; | |
2927 | ||
2928 | static void | |
2929 | do_restore_current_traceframe_cleanup (void *arg) | |
2930 | { | |
2931 | struct current_traceframe_cleanup *old = arg; | |
2932 | ||
2933 | set_traceframe_number (old->traceframe_number); | |
2934 | } | |
2935 | ||
2936 | static void | |
2937 | restore_current_traceframe_cleanup_dtor (void *arg) | |
2938 | { | |
2939 | struct current_traceframe_cleanup *old = arg; | |
2940 | ||
2941 | xfree (old); | |
2942 | } | |
2943 | ||
2944 | struct cleanup * | |
2945 | make_cleanup_restore_current_traceframe (void) | |
2946 | { | |
2947 | struct current_traceframe_cleanup *old; | |
2948 | ||
2949 | old = xmalloc (sizeof (struct current_traceframe_cleanup)); | |
2950 | old->traceframe_number = traceframe_number; | |
2951 | ||
2952 | return make_cleanup_dtor (do_restore_current_traceframe_cleanup, old, | |
2953 | restore_current_traceframe_cleanup_dtor); | |
2954 | } | |
00bf0b85 SS |
2955 | |
2956 | /* Given a number and address, return an uploaded tracepoint with that | |
2957 | number, creating if necessary. */ | |
2958 | ||
2959 | struct uploaded_tp * | |
2960 | get_uploaded_tp (int num, ULONGEST addr, struct uploaded_tp **utpp) | |
2961 | { | |
2962 | struct uploaded_tp *utp; | |
2963 | ||
2964 | for (utp = *utpp; utp; utp = utp->next) | |
2965 | if (utp->number == num && utp->addr == addr) | |
2966 | return utp; | |
2967 | utp = (struct uploaded_tp *) xmalloc (sizeof (struct uploaded_tp)); | |
2968 | memset (utp, 0, sizeof (struct uploaded_tp)); | |
2969 | utp->number = num; | |
2970 | utp->addr = addr; | |
3149d8c1 SS |
2971 | utp->actions = NULL; |
2972 | utp->step_actions = NULL; | |
2973 | utp->cmd_strings = NULL; | |
00bf0b85 SS |
2974 | utp->next = *utpp; |
2975 | *utpp = utp; | |
2976 | return utp; | |
2977 | } | |
2978 | ||
2979 | static void | |
2980 | free_uploaded_tps (struct uploaded_tp **utpp) | |
2981 | { | |
2982 | struct uploaded_tp *next_one; | |
2983 | ||
2984 | while (*utpp) | |
2985 | { | |
2986 | next_one = (*utpp)->next; | |
2987 | xfree (*utpp); | |
2988 | *utpp = next_one; | |
2989 | } | |
2990 | } | |
2991 | ||
2992 | /* Given a number and address, return an uploaded tracepoint with that | |
2993 | number, creating if necessary. */ | |
2994 | ||
2995 | struct uploaded_tsv * | |
2996 | get_uploaded_tsv (int num, struct uploaded_tsv **utsvp) | |
2997 | { | |
2998 | struct uploaded_tsv *utsv; | |
2999 | ||
3000 | for (utsv = *utsvp; utsv; utsv = utsv->next) | |
3001 | if (utsv->number == num) | |
3002 | return utsv; | |
3003 | utsv = (struct uploaded_tsv *) xmalloc (sizeof (struct uploaded_tsv)); | |
3004 | memset (utsv, 0, sizeof (struct uploaded_tsv)); | |
3005 | utsv->number = num; | |
3006 | utsv->next = *utsvp; | |
3007 | *utsvp = utsv; | |
3008 | return utsv; | |
3009 | } | |
3010 | ||
3011 | static void | |
3012 | free_uploaded_tsvs (struct uploaded_tsv **utsvp) | |
3013 | { | |
3014 | struct uploaded_tsv *next_one; | |
3015 | ||
3016 | while (*utsvp) | |
3017 | { | |
3018 | next_one = (*utsvp)->next; | |
3019 | xfree (*utsvp); | |
3020 | *utsvp = next_one; | |
3021 | } | |
3022 | } | |
3023 | ||
3024 | /* Look for an existing tracepoint that seems similar enough to the | |
3025 | uploaded one. Enablement isn't compared, because the user can | |
3026 | toggle that freely, and may have done so in anticipation of the | |
3027 | next trace run. */ | |
3028 | ||
3029 | struct breakpoint * | |
3030 | find_matching_tracepoint (struct uploaded_tp *utp) | |
3031 | { | |
3032 | VEC(breakpoint_p) *tp_vec = all_tracepoints (); | |
3033 | int ix; | |
3034 | struct breakpoint *t; | |
3035 | struct bp_location *loc; | |
3036 | ||
3037 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
3038 | { | |
3039 | if (t->type == utp->type | |
3040 | && t->step_count == utp->step | |
3041 | && t->pass_count == utp->pass | |
3042 | /* FIXME also test conditionals and actions */ | |
3043 | ) | |
3044 | { | |
3045 | /* Scan the locations for an address match. */ | |
3046 | for (loc = t->loc; loc; loc = loc->next) | |
3047 | { | |
3048 | if (loc->address == utp->addr) | |
3049 | return t; | |
3050 | } | |
3051 | } | |
3052 | } | |
3053 | return NULL; | |
3054 | } | |
3055 | ||
3056 | /* Given a list of tracepoints uploaded from a target, attempt to | |
3057 | match them up with existing tracepoints, and create new ones if not | |
3058 | found. */ | |
3059 | ||
3060 | void | |
3061 | merge_uploaded_tracepoints (struct uploaded_tp **uploaded_tps) | |
3062 | { | |
3063 | struct uploaded_tp *utp; | |
3064 | struct breakpoint *t; | |
3065 | ||
3066 | /* Look for GDB tracepoints that match up with our uploaded versions. */ | |
3067 | for (utp = *uploaded_tps; utp; utp = utp->next) | |
3068 | { | |
3069 | t = find_matching_tracepoint (utp); | |
3070 | if (t) | |
3e43a32a MS |
3071 | printf_filtered (_("Assuming tracepoint %d is same " |
3072 | "as target's tracepoint %d at %s.\n"), | |
3073 | t->number, utp->number, | |
3074 | paddress (get_current_arch (), utp->addr)); | |
00bf0b85 SS |
3075 | else |
3076 | { | |
3077 | t = create_tracepoint_from_upload (utp); | |
3078 | if (t) | |
3e43a32a MS |
3079 | printf_filtered (_("Created tracepoint %d for " |
3080 | "target's tracepoint %d at %s.\n"), | |
3081 | t->number, utp->number, | |
3082 | paddress (get_current_arch (), utp->addr)); | |
00bf0b85 | 3083 | else |
3e43a32a MS |
3084 | printf_filtered (_("Failed to create tracepoint for target's " |
3085 | "tracepoint %d at %s, skipping it.\n"), | |
3086 | utp->number, | |
3087 | paddress (get_current_arch (), utp->addr)); | |
00bf0b85 SS |
3088 | } |
3089 | /* Whether found or created, record the number used by the | |
3090 | target, to help with mapping target tracepoints back to their | |
3091 | counterparts here. */ | |
3092 | if (t) | |
3093 | t->number_on_target = utp->number; | |
3094 | } | |
3095 | ||
3096 | free_uploaded_tps (uploaded_tps); | |
3097 | } | |
3098 | ||
3099 | /* Trace state variables don't have much to identify them beyond their | |
3100 | name, so just use that to detect matches. */ | |
3101 | ||
3102 | struct trace_state_variable * | |
3103 | find_matching_tsv (struct uploaded_tsv *utsv) | |
3104 | { | |
3105 | if (!utsv->name) | |
3106 | return NULL; | |
3107 | ||
3108 | return find_trace_state_variable (utsv->name); | |
3109 | } | |
3110 | ||
3111 | struct trace_state_variable * | |
3112 | create_tsv_from_upload (struct uploaded_tsv *utsv) | |
3113 | { | |
3114 | const char *namebase; | |
3115 | char buf[20]; | |
3116 | int try_num = 0; | |
3117 | struct trace_state_variable *tsv; | |
3118 | ||
3119 | if (utsv->name) | |
3120 | { | |
3121 | namebase = utsv->name; | |
3122 | sprintf (buf, "%s", namebase); | |
3123 | } | |
3124 | else | |
3125 | { | |
3126 | namebase = "__tsv"; | |
3127 | sprintf (buf, "%s_%d", namebase, try_num++); | |
3128 | } | |
3129 | ||
3130 | /* Fish for a name that is not in use. */ | |
3131 | /* (should check against all internal vars?) */ | |
3132 | while (find_trace_state_variable (buf)) | |
3133 | sprintf (buf, "%s_%d", namebase, try_num++); | |
3134 | ||
3135 | /* We have an available name, create the variable. */ | |
3136 | tsv = create_trace_state_variable (xstrdup (buf)); | |
3137 | tsv->initial_value = utsv->initial_value; | |
3138 | tsv->builtin = utsv->builtin; | |
3139 | ||
3140 | return tsv; | |
3141 | } | |
3142 | ||
3143 | /* Given a list of uploaded trace state variables, try to match them | |
3144 | up with existing variables, or create additional ones. */ | |
3145 | ||
3146 | void | |
3147 | merge_uploaded_trace_state_variables (struct uploaded_tsv **uploaded_tsvs) | |
3148 | { | |
3149 | int ix; | |
3150 | struct uploaded_tsv *utsv; | |
3151 | struct trace_state_variable *tsv; | |
3152 | int highest; | |
3153 | ||
3154 | /* Most likely some numbers will have to be reassigned as part of | |
3155 | the merge, so clear them all in anticipation. */ | |
3156 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3157 | tsv->number = 0; | |
3158 | ||
3159 | for (utsv = *uploaded_tsvs; utsv; utsv = utsv->next) | |
3160 | { | |
3161 | tsv = find_matching_tsv (utsv); | |
3162 | if (tsv) | |
417b5110 DJ |
3163 | { |
3164 | if (info_verbose) | |
3e43a32a MS |
3165 | printf_filtered (_("Assuming trace state variable $%s " |
3166 | "is same as target's variable %d.\n"), | |
417b5110 DJ |
3167 | tsv->name, utsv->number); |
3168 | } | |
00bf0b85 SS |
3169 | else |
3170 | { | |
3171 | tsv = create_tsv_from_upload (utsv); | |
417b5110 | 3172 | if (info_verbose) |
3e43a32a MS |
3173 | printf_filtered (_("Created trace state variable " |
3174 | "$%s for target's variable %d.\n"), | |
417b5110 | 3175 | tsv->name, utsv->number); |
00bf0b85 SS |
3176 | } |
3177 | /* Give precedence to numberings that come from the target. */ | |
3178 | if (tsv) | |
3179 | tsv->number = utsv->number; | |
3180 | } | |
3181 | ||
3182 | /* Renumber everything that didn't get a target-assigned number. */ | |
3183 | highest = 0; | |
3184 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3185 | if (tsv->number > highest) | |
3186 | highest = tsv->number; | |
3187 | ||
3188 | ++highest; | |
3189 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3190 | if (tsv->number == 0) | |
3191 | tsv->number = highest++; | |
3192 | ||
3193 | free_uploaded_tsvs (uploaded_tsvs); | |
3194 | } | |
3195 | ||
3196 | /* target tfile command */ | |
3197 | ||
3198 | struct target_ops tfile_ops; | |
3199 | ||
3200 | /* Fill in tfile_ops with its defined operations and properties. */ | |
3201 | ||
3202 | #define TRACE_HEADER_SIZE 8 | |
3203 | ||
98e03262 | 3204 | char *trace_filename; |
00bf0b85 SS |
3205 | int trace_fd = -1; |
3206 | off_t trace_frames_offset; | |
3207 | off_t cur_offset; | |
3208 | int cur_data_size; | |
3209 | int trace_regblock_size; | |
3210 | ||
3211 | static void tfile_interp_line (char *line, | |
3212 | struct uploaded_tp **utpp, | |
3213 | struct uploaded_tsv **utsvp); | |
3214 | ||
3215 | static void | |
3216 | tfile_open (char *filename, int from_tty) | |
3217 | { | |
3218 | char *temp; | |
3219 | struct cleanup *old_chain; | |
3220 | int flags; | |
3221 | int scratch_chan; | |
3222 | char header[TRACE_HEADER_SIZE]; | |
3223 | char linebuf[1000]; /* should be max remote packet size or so */ | |
3224 | char byte; | |
98e03262 | 3225 | int bytes, i, gotten; |
00bf0b85 SS |
3226 | struct trace_status *ts; |
3227 | struct uploaded_tp *uploaded_tps = NULL; | |
3228 | struct uploaded_tsv *uploaded_tsvs = NULL; | |
3229 | ||
3230 | target_preopen (from_tty); | |
3231 | if (!filename) | |
3232 | error (_("No trace file specified.")); | |
3233 | ||
3234 | filename = tilde_expand (filename); | |
3235 | if (!IS_ABSOLUTE_PATH(filename)) | |
3236 | { | |
c4f7c687 | 3237 | temp = concat (current_directory, "/", filename, (char *) NULL); |
00bf0b85 SS |
3238 | xfree (filename); |
3239 | filename = temp; | |
3240 | } | |
3241 | ||
3242 | old_chain = make_cleanup (xfree, filename); | |
3243 | ||
3244 | flags = O_BINARY | O_LARGEFILE; | |
3245 | flags |= O_RDONLY; | |
3246 | scratch_chan = open (filename, flags, 0); | |
3247 | if (scratch_chan < 0) | |
3248 | perror_with_name (filename); | |
3249 | ||
3250 | /* Looks semi-reasonable. Toss the old trace file and work on the new. */ | |
3251 | ||
3252 | discard_cleanups (old_chain); /* Don't free filename any more */ | |
3253 | unpush_target (&tfile_ops); | |
3254 | ||
3255 | push_target (&tfile_ops); | |
00bf0b85 | 3256 | |
98e03262 | 3257 | trace_filename = xstrdup (filename); |
00bf0b85 SS |
3258 | trace_fd = scratch_chan; |
3259 | ||
3260 | bytes = 0; | |
3261 | /* Read the file header and test for validity. */ | |
98e03262 SS |
3262 | gotten = read (trace_fd, &header, TRACE_HEADER_SIZE); |
3263 | if (gotten < 0) | |
3264 | perror_with_name (trace_filename); | |
3265 | else if (gotten < TRACE_HEADER_SIZE) | |
3266 | error (_("Premature end of file while reading trace file")); | |
3267 | ||
00bf0b85 SS |
3268 | bytes += TRACE_HEADER_SIZE; |
3269 | if (!(header[0] == 0x7f | |
3270 | && (strncmp (header + 1, "TRACE0\n", 7) == 0))) | |
3271 | error (_("File is not a valid trace file.")); | |
3272 | ||
3273 | trace_regblock_size = 0; | |
3274 | ts = current_trace_status (); | |
3275 | /* We know we're working with a file. */ | |
3276 | ts->from_file = 1; | |
3277 | /* Set defaults in case there is no status line. */ | |
3278 | ts->running_known = 0; | |
3279 | ts->stop_reason = trace_stop_reason_unknown; | |
3280 | ts->traceframe_count = -1; | |
3281 | ts->buffer_free = 0; | |
33da3f1c SS |
3282 | ts->disconnected_tracing = 0; |
3283 | ts->circular_buffer = 0; | |
00bf0b85 SS |
3284 | |
3285 | /* Read through a section of newline-terminated lines that | |
3286 | define things like tracepoints. */ | |
3287 | i = 0; | |
3288 | while (1) | |
3289 | { | |
98e03262 SS |
3290 | gotten = read (trace_fd, &byte, 1); |
3291 | if (gotten < 0) | |
3292 | perror_with_name (trace_filename); | |
3293 | else if (gotten < 1) | |
3294 | error (_("Premature end of file while reading trace file")); | |
3295 | ||
00bf0b85 SS |
3296 | ++bytes; |
3297 | if (byte == '\n') | |
3298 | { | |
3299 | /* Empty line marks end of the definition section. */ | |
3300 | if (i == 0) | |
3301 | break; | |
3302 | linebuf[i] = '\0'; | |
3303 | i = 0; | |
3304 | tfile_interp_line (linebuf, &uploaded_tps, &uploaded_tsvs); | |
3305 | } | |
3306 | else | |
3307 | linebuf[i++] = byte; | |
3308 | if (i >= 1000) | |
3309 | error (_("Excessively long lines in trace file")); | |
3310 | } | |
3311 | ||
3312 | /* Add the file's tracepoints and variables into the current mix. */ | |
3313 | ||
10ef8d6a PA |
3314 | /* Get trace state variables first, they may be checked when parsing |
3315 | uploaded commands. */ | |
00bf0b85 SS |
3316 | merge_uploaded_trace_state_variables (&uploaded_tsvs); |
3317 | ||
10ef8d6a PA |
3318 | merge_uploaded_tracepoints (&uploaded_tps); |
3319 | ||
00bf0b85 SS |
3320 | /* Record the starting offset of the binary trace data. */ |
3321 | trace_frames_offset = bytes; | |
3322 | ||
3323 | /* If we don't have a blocksize, we can't interpret the | |
3324 | traceframes. */ | |
3325 | if (trace_regblock_size == 0) | |
3326 | error (_("No register block size recorded in trace file")); | |
3327 | if (ts->traceframe_count <= 0) | |
3328 | { | |
3329 | warning ("No traceframes present in this file."); | |
3330 | return; | |
3331 | } | |
3332 | ||
3333 | #define TFILE_PID (1) | |
3334 | inferior_appeared (current_inferior (), TFILE_PID); | |
3335 | inferior_ptid = pid_to_ptid (TFILE_PID); | |
3336 | add_thread_silent (inferior_ptid); | |
3337 | ||
3338 | post_create_inferior (&tfile_ops, from_tty); | |
3339 | ||
3340 | #if 0 | |
3341 | /* FIXME this will get defined in MI patch submission */ | |
3342 | tfind_1 (tfind_number, 0, 0, 0, 0); | |
3343 | #endif | |
3344 | } | |
3345 | ||
3346 | /* Interpret the given line from the definitions part of the trace | |
3347 | file. */ | |
3348 | ||
3349 | static void | |
3350 | tfile_interp_line (char *line, | |
3351 | struct uploaded_tp **utpp, struct uploaded_tsv **utsvp) | |
3352 | { | |
3353 | char *p = line; | |
3354 | ||
3355 | if (strncmp (p, "R ", strlen ("R ")) == 0) | |
3356 | { | |
3357 | p += strlen ("R "); | |
3358 | trace_regblock_size = strtol (p, &p, 16); | |
3359 | } | |
3360 | else if (strncmp (p, "status ", strlen ("status ")) == 0) | |
3361 | { | |
3362 | p += strlen ("status "); | |
3363 | parse_trace_status (p, current_trace_status ()); | |
3364 | } | |
3365 | else if (strncmp (p, "tp ", strlen ("tp ")) == 0) | |
3366 | { | |
3367 | p += strlen ("tp "); | |
3368 | parse_tracepoint_definition (p, utpp); | |
3369 | } | |
3370 | else if (strncmp (p, "tsv ", strlen ("tsv ")) == 0) | |
3371 | { | |
3372 | p += strlen ("tsv "); | |
3373 | parse_tsv_definition (p, utsvp); | |
3374 | } | |
3375 | else | |
3376 | warning ("Ignoring trace file definition \"%s\"", line); | |
3377 | } | |
3378 | ||
3379 | /* Parse the part of trace status syntax that is shared between | |
3380 | the remote protocol and the trace file reader. */ | |
3381 | ||
00bf0b85 SS |
3382 | void |
3383 | parse_trace_status (char *line, struct trace_status *ts) | |
3384 | { | |
6c28cbf2 | 3385 | char *p = line, *p1, *p2, *p_temp; |
00bf0b85 SS |
3386 | ULONGEST val; |
3387 | ||
3388 | ts->running_known = 1; | |
3389 | ts->running = (*p++ == '1'); | |
3390 | ts->stop_reason = trace_stop_reason_unknown; | |
a609a0c8 PA |
3391 | xfree (ts->error_desc); |
3392 | ts->error_desc = NULL; | |
4daf5ac0 SS |
3393 | ts->traceframe_count = -1; |
3394 | ts->traceframes_created = -1; | |
3395 | ts->buffer_free = -1; | |
3396 | ts->buffer_size = -1; | |
33da3f1c SS |
3397 | ts->disconnected_tracing = 0; |
3398 | ts->circular_buffer = 0; | |
4daf5ac0 | 3399 | |
00bf0b85 SS |
3400 | while (*p++) |
3401 | { | |
3402 | p1 = strchr (p, ':'); | |
3403 | if (p1 == NULL) | |
3404 | error (_("Malformed trace status, at %s\n\ | |
3405 | Status line: '%s'\n"), p, line); | |
3406 | if (strncmp (p, stop_reason_names[trace_buffer_full], p1 - p) == 0) | |
3407 | { | |
3408 | p = unpack_varlen_hex (++p1, &val); | |
3409 | ts->stop_reason = trace_buffer_full; | |
3410 | } | |
3411 | else if (strncmp (p, stop_reason_names[trace_never_run], p1 - p) == 0) | |
3412 | { | |
3413 | p = unpack_varlen_hex (++p1, &val); | |
3414 | ts->stop_reason = trace_never_run; | |
3415 | } | |
3e43a32a MS |
3416 | else if (strncmp (p, stop_reason_names[tracepoint_passcount], |
3417 | p1 - p) == 0) | |
00bf0b85 SS |
3418 | { |
3419 | p = unpack_varlen_hex (++p1, &val); | |
3420 | ts->stop_reason = tracepoint_passcount; | |
3421 | ts->stopping_tracepoint = val; | |
3422 | } | |
3423 | else if (strncmp (p, stop_reason_names[tstop_command], p1 - p) == 0) | |
3424 | { | |
3425 | p = unpack_varlen_hex (++p1, &val); | |
3426 | ts->stop_reason = tstop_command; | |
3427 | } | |
33da3f1c SS |
3428 | else if (strncmp (p, stop_reason_names[trace_disconnected], p1 - p) == 0) |
3429 | { | |
3430 | p = unpack_varlen_hex (++p1, &val); | |
3431 | ts->stop_reason = trace_disconnected; | |
3432 | } | |
6c28cbf2 SS |
3433 | else if (strncmp (p, stop_reason_names[tracepoint_error], p1 - p) == 0) |
3434 | { | |
3435 | p2 = strchr (++p1, ':'); | |
3436 | if (p2 != p1) | |
3437 | { | |
3438 | int end; | |
99b5e152 PA |
3439 | |
3440 | ts->error_desc = xmalloc ((p2 - p1) / 2 + 1); | |
3441 | end = hex2bin (p1, ts->error_desc, (p2 - p1) / 2); | |
6c28cbf2 SS |
3442 | ts->error_desc[end] = '\0'; |
3443 | } | |
a609a0c8 PA |
3444 | else |
3445 | ts->error_desc = xstrdup (""); | |
3446 | ||
6c28cbf2 SS |
3447 | p = unpack_varlen_hex (++p2, &val); |
3448 | ts->stopping_tracepoint = val; | |
3449 | ts->stop_reason = tracepoint_error; | |
3450 | } | |
4daf5ac0 | 3451 | else if (strncmp (p, "tframes", p1 - p) == 0) |
00bf0b85 SS |
3452 | { |
3453 | p = unpack_varlen_hex (++p1, &val); | |
3454 | ts->traceframe_count = val; | |
3455 | } | |
4daf5ac0 SS |
3456 | else if (strncmp (p, "tcreated", p1 - p) == 0) |
3457 | { | |
3458 | p = unpack_varlen_hex (++p1, &val); | |
3459 | ts->traceframes_created = val; | |
3460 | } | |
3461 | else if (strncmp (p, "tfree", p1 - p) == 0) | |
00bf0b85 SS |
3462 | { |
3463 | p = unpack_varlen_hex (++p1, &val); | |
3464 | ts->buffer_free = val; | |
3465 | } | |
4daf5ac0 SS |
3466 | else if (strncmp (p, "tsize", p1 - p) == 0) |
3467 | { | |
3468 | p = unpack_varlen_hex (++p1, &val); | |
3469 | ts->buffer_size = val; | |
3470 | } | |
33da3f1c SS |
3471 | else if (strncmp (p, "disconn", p1 - p) == 0) |
3472 | { | |
3473 | p = unpack_varlen_hex (++p1, &val); | |
3474 | ts->disconnected_tracing = val; | |
3475 | } | |
3476 | else if (strncmp (p, "circular", p1 - p) == 0) | |
3477 | { | |
3478 | p = unpack_varlen_hex (++p1, &val); | |
3479 | ts->circular_buffer = val; | |
3480 | } | |
00bf0b85 SS |
3481 | else |
3482 | { | |
3483 | /* Silently skip unknown optional info. */ | |
3484 | p_temp = strchr (p1 + 1, ';'); | |
3485 | if (p_temp) | |
3486 | p = p_temp; | |
3487 | else | |
3488 | /* Must be at the end. */ | |
3489 | break; | |
3490 | } | |
3491 | } | |
3492 | } | |
3493 | ||
409873ef SS |
3494 | /* Given a line of text defining a part of a tracepoint, parse it into |
3495 | an "uploaded tracepoint". */ | |
00bf0b85 SS |
3496 | |
3497 | void | |
3498 | parse_tracepoint_definition (char *line, struct uploaded_tp **utpp) | |
3499 | { | |
3500 | char *p; | |
3501 | char piece; | |
409873ef | 3502 | ULONGEST num, addr, step, pass, orig_size, xlen, start; |
2a2287c7 | 3503 | int enabled, end; |
00bf0b85 | 3504 | enum bptype type; |
2a2287c7 | 3505 | char *cond, *srctype, *buf; |
00bf0b85 SS |
3506 | struct uploaded_tp *utp = NULL; |
3507 | ||
3508 | p = line; | |
3509 | /* Both tracepoint and action definitions start with the same number | |
3510 | and address sequence. */ | |
3511 | piece = *p++; | |
3512 | p = unpack_varlen_hex (p, &num); | |
3513 | p++; /* skip a colon */ | |
3514 | p = unpack_varlen_hex (p, &addr); | |
3515 | p++; /* skip a colon */ | |
3516 | if (piece == 'T') | |
3517 | { | |
3518 | enabled = (*p++ == 'E'); | |
3519 | p++; /* skip a colon */ | |
3520 | p = unpack_varlen_hex (p, &step); | |
3521 | p++; /* skip a colon */ | |
3522 | p = unpack_varlen_hex (p, &pass); | |
3523 | type = bp_tracepoint; | |
3524 | cond = NULL; | |
3525 | /* Thumb through optional fields. */ | |
3526 | while (*p == ':') | |
3527 | { | |
3528 | p++; /* skip a colon */ | |
3529 | if (*p == 'F') | |
3530 | { | |
3531 | type = bp_fast_tracepoint; | |
3532 | p++; | |
3533 | p = unpack_varlen_hex (p, &orig_size); | |
3534 | } | |
0fb4aa4b PA |
3535 | else if (*p == 'S') |
3536 | { | |
3537 | type = bp_static_tracepoint; | |
3538 | p++; | |
3539 | } | |
00bf0b85 SS |
3540 | else if (*p == 'X') |
3541 | { | |
3542 | p++; | |
3543 | p = unpack_varlen_hex (p, &xlen); | |
3544 | p++; /* skip a comma */ | |
3545 | cond = (char *) xmalloc (2 * xlen + 1); | |
3546 | strncpy (cond, p, 2 * xlen); | |
3547 | cond[2 * xlen] = '\0'; | |
3548 | p += 2 * xlen; | |
3549 | } | |
3550 | else | |
3e43a32a MS |
3551 | warning (_("Unrecognized char '%c' in tracepoint " |
3552 | "definition, skipping rest"), *p); | |
00bf0b85 SS |
3553 | } |
3554 | utp = get_uploaded_tp (num, addr, utpp); | |
3555 | utp->type = type; | |
3556 | utp->enabled = enabled; | |
3557 | utp->step = step; | |
3558 | utp->pass = pass; | |
3559 | utp->cond = cond; | |
3560 | } | |
3561 | else if (piece == 'A') | |
3562 | { | |
3563 | utp = get_uploaded_tp (num, addr, utpp); | |
3149d8c1 | 3564 | VEC_safe_push (char_ptr, utp->actions, xstrdup (p)); |
00bf0b85 SS |
3565 | } |
3566 | else if (piece == 'S') | |
3567 | { | |
3568 | utp = get_uploaded_tp (num, addr, utpp); | |
3149d8c1 | 3569 | VEC_safe_push (char_ptr, utp->step_actions, xstrdup (p)); |
00bf0b85 | 3570 | } |
409873ef SS |
3571 | else if (piece == 'Z') |
3572 | { | |
3573 | /* Parse a chunk of source form definition. */ | |
3574 | utp = get_uploaded_tp (num, addr, utpp); | |
3575 | srctype = p; | |
3576 | p = strchr (p, ':'); | |
3577 | p++; /* skip a colon */ | |
3578 | p = unpack_varlen_hex (p, &start); | |
3579 | p++; /* skip a colon */ | |
3580 | p = unpack_varlen_hex (p, &xlen); | |
3581 | p++; /* skip a colon */ | |
3582 | ||
3583 | buf = alloca (strlen (line)); | |
3584 | ||
3585 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3586 | buf[end] = '\0'; | |
3587 | ||
3588 | if (strncmp (srctype, "at:", strlen ("at:")) == 0) | |
3589 | utp->at_string = xstrdup (buf); | |
3590 | else if (strncmp (srctype, "cond:", strlen ("cond:")) == 0) | |
3591 | utp->cond_string = xstrdup (buf); | |
3592 | else if (strncmp (srctype, "cmd:", strlen ("cmd:")) == 0) | |
3149d8c1 | 3593 | VEC_safe_push (char_ptr, utp->cmd_strings, xstrdup (buf)); |
409873ef | 3594 | } |
00bf0b85 SS |
3595 | else |
3596 | { | |
409873ef SS |
3597 | /* Don't error out, the target might be sending us optional |
3598 | info that we don't care about. */ | |
3599 | warning (_("Unrecognized tracepoint piece '%c', ignoring"), piece); | |
00bf0b85 SS |
3600 | } |
3601 | } | |
3602 | ||
3603 | /* Convert a textual description of a trace state variable into an | |
3604 | uploaded object. */ | |
3605 | ||
3606 | void | |
3607 | parse_tsv_definition (char *line, struct uploaded_tsv **utsvp) | |
3608 | { | |
3609 | char *p, *buf; | |
3610 | ULONGEST num, initval, builtin; | |
3611 | int end; | |
3612 | struct uploaded_tsv *utsv = NULL; | |
3613 | ||
3614 | buf = alloca (strlen (line)); | |
3615 | ||
3616 | p = line; | |
3617 | p = unpack_varlen_hex (p, &num); | |
3618 | p++; /* skip a colon */ | |
3619 | p = unpack_varlen_hex (p, &initval); | |
3620 | p++; /* skip a colon */ | |
3621 | p = unpack_varlen_hex (p, &builtin); | |
3622 | p++; /* skip a colon */ | |
3623 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3624 | buf[end] = '\0'; | |
3625 | ||
3626 | utsv = get_uploaded_tsv (num, utsvp); | |
3627 | utsv->initial_value = initval; | |
3628 | utsv->builtin = builtin; | |
3629 | utsv->name = xstrdup (buf); | |
3630 | } | |
3631 | ||
3632 | /* Close the trace file and generally clean up. */ | |
3633 | ||
3634 | static void | |
3635 | tfile_close (int quitting) | |
3636 | { | |
3637 | int pid; | |
3638 | ||
3639 | if (trace_fd < 0) | |
3640 | return; | |
3641 | ||
3642 | pid = ptid_get_pid (inferior_ptid); | |
3643 | inferior_ptid = null_ptid; /* Avoid confusion from thread stuff */ | |
3644 | exit_inferior_silent (pid); | |
3645 | ||
3646 | close (trace_fd); | |
3647 | trace_fd = -1; | |
98e03262 SS |
3648 | if (trace_filename) |
3649 | xfree (trace_filename); | |
00bf0b85 SS |
3650 | } |
3651 | ||
3652 | static void | |
3653 | tfile_files_info (struct target_ops *t) | |
3654 | { | |
3655 | /* (it would be useful to mention the name of the file) */ | |
3656 | printf_filtered ("Looking at a trace file.\n"); | |
3657 | } | |
3658 | ||
3659 | /* The trace status for a file is that tracing can never be run. */ | |
3660 | ||
3661 | static int | |
3662 | tfile_get_trace_status (struct trace_status *ts) | |
3663 | { | |
3664 | /* Other bits of trace status were collected as part of opening the | |
3665 | trace files, so nothing to do here. */ | |
3666 | ||
3667 | return -1; | |
3668 | } | |
3669 | ||
3670 | /* Given the position of a traceframe in the file, figure out what | |
3671 | address the frame was collected at. This would normally be the | |
3672 | value of a collected PC register, but if not available, we | |
3673 | improvise. */ | |
3674 | ||
3675 | static ULONGEST | |
3676 | tfile_get_traceframe_address (off_t tframe_offset) | |
3677 | { | |
3678 | ULONGEST addr = 0; | |
3679 | short tpnum; | |
3680 | struct breakpoint *tp; | |
3681 | off_t saved_offset = cur_offset; | |
98e03262 | 3682 | int gotten; |
00bf0b85 SS |
3683 | |
3684 | /* FIXME dig pc out of collected registers */ | |
3685 | ||
3686 | /* Fall back to using tracepoint address. */ | |
3687 | lseek (trace_fd, tframe_offset, SEEK_SET); | |
98e03262 SS |
3688 | gotten = read (trace_fd, &tpnum, 2); |
3689 | if (gotten < 0) | |
3690 | perror_with_name (trace_filename); | |
3691 | else if (gotten < 2) | |
3692 | error (_("Premature end of file while reading trace file")); | |
8991e9fa HZ |
3693 | tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2, |
3694 | gdbarch_byte_order | |
3695 | (target_gdbarch)); | |
98e03262 | 3696 | |
00bf0b85 | 3697 | tp = get_tracepoint_by_number_on_target (tpnum); |
9355b391 | 3698 | /* FIXME this is a poor heuristic if multiple locations */ |
00bf0b85 SS |
3699 | if (tp && tp->loc) |
3700 | addr = tp->loc->address; | |
3701 | ||
3702 | /* Restore our seek position. */ | |
3703 | cur_offset = saved_offset; | |
3704 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3705 | return addr; | |
3706 | } | |
3707 | ||
3708 | /* Given a type of search and some parameters, scan the collection of | |
3709 | traceframes in the file looking for a match. When found, return | |
3710 | both the traceframe and tracepoint number, otherwise -1 for | |
3711 | each. */ | |
3712 | ||
3713 | static int | |
3714 | tfile_trace_find (enum trace_find_type type, int num, | |
3715 | ULONGEST addr1, ULONGEST addr2, int *tpp) | |
3716 | { | |
3717 | short tpnum; | |
98e03262 | 3718 | int tfnum = 0, found = 0, gotten; |
8991e9fa | 3719 | unsigned int data_size; |
00bf0b85 SS |
3720 | struct breakpoint *tp; |
3721 | off_t offset, tframe_offset; | |
3722 | ULONGEST tfaddr; | |
3723 | ||
3724 | lseek (trace_fd, trace_frames_offset, SEEK_SET); | |
3725 | offset = trace_frames_offset; | |
3726 | while (1) | |
3727 | { | |
3728 | tframe_offset = offset; | |
98e03262 SS |
3729 | gotten = read (trace_fd, &tpnum, 2); |
3730 | if (gotten < 0) | |
3731 | perror_with_name (trace_filename); | |
3732 | else if (gotten < 2) | |
3733 | error (_("Premature end of file while reading trace file")); | |
8991e9fa HZ |
3734 | tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2, |
3735 | gdbarch_byte_order | |
3736 | (target_gdbarch)); | |
00bf0b85 SS |
3737 | offset += 2; |
3738 | if (tpnum == 0) | |
3739 | break; | |
98e03262 SS |
3740 | gotten = read (trace_fd, &data_size, 4); |
3741 | if (gotten < 0) | |
3742 | perror_with_name (trace_filename); | |
3743 | else if (gotten < 4) | |
3744 | error (_("Premature end of file while reading trace file")); | |
8991e9fa HZ |
3745 | data_size = (unsigned int) extract_unsigned_integer |
3746 | ((gdb_byte *) &data_size, 4, | |
3747 | gdbarch_byte_order (target_gdbarch)); | |
00bf0b85 SS |
3748 | offset += 4; |
3749 | switch (type) | |
3750 | { | |
3751 | case tfind_number: | |
3752 | if (tfnum == num) | |
3753 | found = 1; | |
3754 | break; | |
3755 | case tfind_pc: | |
3756 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3757 | if (tfaddr == addr1) | |
3758 | found = 1; | |
3759 | break; | |
3760 | case tfind_tp: | |
3761 | tp = get_tracepoint (num); | |
3762 | if (tp && tpnum == tp->number_on_target) | |
3763 | found = 1; | |
3764 | break; | |
3765 | case tfind_range: | |
3766 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3767 | if (addr1 <= tfaddr && tfaddr <= addr2) | |
3768 | found = 1; | |
3769 | break; | |
3770 | case tfind_outside: | |
3771 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3772 | if (!(addr1 <= tfaddr && tfaddr <= addr2)) | |
3773 | found = 1; | |
3774 | break; | |
3775 | default: | |
3776 | internal_error (__FILE__, __LINE__, _("unknown tfind type")); | |
3777 | } | |
3778 | if (found) | |
3779 | { | |
00bf0b85 SS |
3780 | if (tpp) |
3781 | *tpp = tpnum; | |
3782 | cur_offset = offset; | |
3783 | cur_data_size = data_size; | |
3784 | return tfnum; | |
3785 | } | |
3786 | /* Skip past the traceframe's data. */ | |
3787 | lseek (trace_fd, data_size, SEEK_CUR); | |
3788 | offset += data_size; | |
3789 | /* Update our own count of traceframes. */ | |
3790 | ++tfnum; | |
3791 | } | |
3792 | /* Did not find what we were looking for. */ | |
3793 | if (tpp) | |
3794 | *tpp = -1; | |
3795 | return -1; | |
3796 | } | |
3797 | ||
3798 | /* Look for a block of saved registers in the traceframe, and get the | |
3799 | requested register from it. */ | |
3800 | ||
3801 | static void | |
3802 | tfile_fetch_registers (struct target_ops *ops, | |
3803 | struct regcache *regcache, int regno) | |
3804 | { | |
3805 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
3806 | char block_type; | |
2a2287c7 | 3807 | int pos, offset, regn, regsize, gotten, pc_regno; |
00bf0b85 SS |
3808 | unsigned short mlen; |
3809 | char *regs; | |
3810 | ||
3811 | /* An uninitialized reg size says we're not going to be | |
3812 | successful at getting register blocks. */ | |
3813 | if (!trace_regblock_size) | |
3814 | return; | |
3815 | ||
3816 | regs = alloca (trace_regblock_size); | |
3817 | ||
3818 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3819 | pos = 0; | |
3820 | while (pos < cur_data_size) | |
3821 | { | |
98e03262 SS |
3822 | gotten = read (trace_fd, &block_type, 1); |
3823 | if (gotten < 0) | |
3824 | perror_with_name (trace_filename); | |
3825 | else if (gotten < 1) | |
3826 | error (_("Premature end of file while reading trace file")); | |
3827 | ||
00bf0b85 SS |
3828 | ++pos; |
3829 | switch (block_type) | |
3830 | { | |
3831 | case 'R': | |
98e03262 SS |
3832 | gotten = read (trace_fd, regs, trace_regblock_size); |
3833 | if (gotten < 0) | |
3834 | perror_with_name (trace_filename); | |
3835 | else if (gotten < trace_regblock_size) | |
3836 | error (_("Premature end of file while reading trace file")); | |
3837 | ||
00bf0b85 SS |
3838 | /* Assume the block is laid out in GDB register number order, |
3839 | each register with the size that it has in GDB. */ | |
3840 | offset = 0; | |
3841 | for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++) | |
3842 | { | |
3843 | regsize = register_size (gdbarch, regn); | |
3844 | /* Make sure we stay within block bounds. */ | |
3845 | if (offset + regsize >= trace_regblock_size) | |
3846 | break; | |
3847 | if (!regcache_valid_p (regcache, regn)) | |
3848 | { | |
3849 | if (regno == regn) | |
3850 | { | |
3851 | regcache_raw_supply (regcache, regno, regs + offset); | |
3852 | break; | |
3853 | } | |
3854 | else if (regno == -1) | |
3855 | { | |
3856 | regcache_raw_supply (regcache, regn, regs + offset); | |
3857 | } | |
3858 | } | |
3859 | offset += regsize; | |
3860 | } | |
3861 | return; | |
3862 | case 'M': | |
3863 | lseek (trace_fd, 8, SEEK_CUR); | |
98e03262 SS |
3864 | gotten = read (trace_fd, &mlen, 2); |
3865 | if (gotten < 0) | |
3866 | perror_with_name (trace_filename); | |
3867 | else if (gotten < 2) | |
3868 | error (_("Premature end of file while reading trace file")); | |
8991e9fa HZ |
3869 | mlen = (unsigned short) |
3870 | extract_unsigned_integer ((gdb_byte *) &mlen, 2, | |
3871 | gdbarch_byte_order | |
3872 | (target_gdbarch)); | |
00bf0b85 SS |
3873 | lseek (trace_fd, mlen, SEEK_CUR); |
3874 | pos += (8 + 2 + mlen); | |
3875 | break; | |
3876 | case 'V': | |
3877 | lseek (trace_fd, 4 + 8, SEEK_CUR); | |
3878 | pos += (4 + 8); | |
3879 | break; | |
3880 | default: | |
3881 | error ("Unknown block type '%c' (0x%x) in trace frame", | |
3882 | block_type, block_type); | |
3883 | break; | |
3884 | } | |
3885 | } | |
af54718e SS |
3886 | |
3887 | /* We get here if no register data has been found. Although we | |
3888 | don't like making up numbers, GDB has all manner of troubles when | |
3889 | the target says some register is not available. Filling in with | |
3890 | zeroes is a reasonable fallback. */ | |
3891 | for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++) | |
3892 | regcache_raw_supply (regcache, regn, NULL); | |
3893 | ||
3894 | /* We can often usefully guess that the PC is going to be the same | |
3895 | as the address of the tracepoint. */ | |
3896 | pc_regno = gdbarch_pc_regnum (gdbarch); | |
3897 | if (pc_regno >= 0 && (regno == -1 || regno == pc_regno)) | |
3898 | { | |
3899 | struct breakpoint *tp = get_tracepoint (tracepoint_number); | |
3900 | ||
3901 | if (tp && tp->loc) | |
3902 | { | |
3903 | /* But don't try to guess if tracepoint is multi-location... */ | |
3904 | if (tp->loc->next) | |
3905 | { | |
3e43a32a MS |
3906 | warning ("Tracepoint %d has multiple " |
3907 | "locations, cannot infer $pc", | |
af54718e SS |
3908 | tp->number); |
3909 | return; | |
3910 | } | |
3911 | /* ... or does while-stepping. */ | |
3912 | if (tp->step_count > 0) | |
3913 | { | |
3914 | warning ("Tracepoint %d does while-stepping, cannot infer $pc", | |
3915 | tp->number); | |
3916 | return; | |
3917 | } | |
3918 | ||
3919 | store_unsigned_integer (regs, register_size (gdbarch, pc_regno), | |
3920 | gdbarch_byte_order (gdbarch), | |
3921 | tp->loc->address); | |
3922 | regcache_raw_supply (regcache, pc_regno, regs); | |
3923 | } | |
3924 | } | |
00bf0b85 SS |
3925 | } |
3926 | ||
3927 | static LONGEST | |
3928 | tfile_xfer_partial (struct target_ops *ops, enum target_object object, | |
3929 | const char *annex, gdb_byte *readbuf, | |
3930 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
3931 | { | |
3932 | char block_type; | |
98e03262 | 3933 | int pos, gotten; |
fce3c1f0 | 3934 | ULONGEST maddr, amt; |
00bf0b85 SS |
3935 | unsigned short mlen; |
3936 | ||
3937 | /* We're only doing regular memory for now. */ | |
3938 | if (object != TARGET_OBJECT_MEMORY) | |
3939 | return -1; | |
3940 | ||
3941 | if (readbuf == NULL) | |
3942 | error ("tfile_xfer_partial: trace file is read-only"); | |
3943 | ||
3944 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3945 | pos = 0; | |
3946 | while (pos < cur_data_size) | |
3947 | { | |
98e03262 SS |
3948 | gotten = read (trace_fd, &block_type, 1); |
3949 | if (gotten < 0) | |
3950 | perror_with_name (trace_filename); | |
3951 | else if (gotten < 1) | |
3952 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3953 | ++pos; |
3954 | switch (block_type) | |
3955 | { | |
3956 | case 'R': | |
3957 | lseek (trace_fd, trace_regblock_size, SEEK_CUR); | |
3958 | pos += trace_regblock_size; | |
3959 | break; | |
3960 | case 'M': | |
98e03262 SS |
3961 | gotten = read (trace_fd, &maddr, 8); |
3962 | if (gotten < 0) | |
3963 | perror_with_name (trace_filename); | |
3964 | else if (gotten < 8) | |
3965 | error (_("Premature end of file while reading trace file")); | |
8991e9fa HZ |
3966 | maddr = extract_unsigned_integer ((gdb_byte *) &maddr, 8, |
3967 | gdbarch_byte_order | |
3968 | (target_gdbarch)); | |
98e03262 SS |
3969 | gotten = read (trace_fd, &mlen, 2); |
3970 | if (gotten < 0) | |
3971 | perror_with_name (trace_filename); | |
3972 | else if (gotten < 2) | |
3973 | error (_("Premature end of file while reading trace file")); | |
8991e9fa HZ |
3974 | mlen = (unsigned short) |
3975 | extract_unsigned_integer ((gdb_byte *) &mlen, 2, | |
3976 | gdbarch_byte_order | |
3977 | (target_gdbarch)); | |
fce3c1f0 SS |
3978 | /* If the block includes the first part of the desired |
3979 | range, return as much it has; GDB will re-request the | |
3980 | remainder, which might be in a different block of this | |
3981 | trace frame. */ | |
3982 | if (maddr <= offset && offset < (maddr + mlen)) | |
3983 | { | |
3984 | amt = (maddr + mlen) - offset; | |
3985 | if (amt > len) | |
3986 | amt = len; | |
3987 | ||
523136f2 SS |
3988 | gotten = read (trace_fd, readbuf, amt); |
3989 | if (gotten < 0) | |
3990 | perror_with_name (trace_filename); | |
3991 | /* While it's acceptable to return less than was | |
3992 | originally asked for, it's not acceptable to return | |
3993 | less than what this block claims to contain. */ | |
3994 | else if (gotten < amt) | |
3995 | error (_("Premature end of file while reading trace file")); | |
fce3c1f0 SS |
3996 | return amt; |
3997 | } | |
00bf0b85 SS |
3998 | lseek (trace_fd, mlen, SEEK_CUR); |
3999 | pos += (8 + 2 + mlen); | |
4000 | break; | |
4001 | case 'V': | |
4002 | lseek (trace_fd, 4 + 8, SEEK_CUR); | |
4003 | pos += (4 + 8); | |
4004 | break; | |
4005 | default: | |
4006 | error ("Unknown block type '%c' (0x%x) in traceframe", | |
4007 | block_type, block_type); | |
4008 | break; | |
4009 | } | |
4010 | } | |
fce3c1f0 SS |
4011 | |
4012 | /* It's unduly pedantic to refuse to look at the executable for | |
4013 | read-only pieces; so do the equivalent of readonly regions aka | |
4014 | QTro packet. */ | |
4015 | /* FIXME account for relocation at some point */ | |
4016 | if (exec_bfd) | |
4017 | { | |
4018 | asection *s; | |
4019 | bfd_size_type size; | |
2209c807 | 4020 | bfd_vma vma; |
fce3c1f0 SS |
4021 | |
4022 | for (s = exec_bfd->sections; s; s = s->next) | |
4023 | { | |
4024 | if ((s->flags & SEC_LOAD) == 0 || | |
4025 | (s->flags & SEC_READONLY) == 0) | |
4026 | continue; | |
4027 | ||
2209c807 | 4028 | vma = s->vma; |
fce3c1f0 | 4029 | size = bfd_get_section_size (s); |
2209c807 | 4030 | if (vma <= offset && offset < (vma + size)) |
fce3c1f0 | 4031 | { |
2209c807 | 4032 | amt = (vma + size) - offset; |
fce3c1f0 SS |
4033 | if (amt > len) |
4034 | amt = len; | |
4035 | ||
4036 | amt = bfd_get_section_contents (exec_bfd, s, | |
2209c807 | 4037 | readbuf, offset - vma, amt); |
fce3c1f0 SS |
4038 | return amt; |
4039 | } | |
4040 | } | |
4041 | } | |
4042 | ||
00bf0b85 SS |
4043 | /* Indicate failure to find the requested memory block. */ |
4044 | return -1; | |
4045 | } | |
4046 | ||
4047 | /* Iterate through the blocks of a trace frame, looking for a 'V' | |
4048 | block with a matching tsv number. */ | |
4049 | ||
4050 | static int | |
4051 | tfile_get_trace_state_variable_value (int tsvnum, LONGEST *val) | |
4052 | { | |
4053 | char block_type; | |
98e03262 | 4054 | int pos, vnum, gotten; |
00bf0b85 SS |
4055 | unsigned short mlen; |
4056 | ||
4057 | lseek (trace_fd, cur_offset, SEEK_SET); | |
4058 | pos = 0; | |
4059 | while (pos < cur_data_size) | |
4060 | { | |
98e03262 SS |
4061 | gotten = read (trace_fd, &block_type, 1); |
4062 | if (gotten < 0) | |
4063 | perror_with_name (trace_filename); | |
4064 | else if (gotten < 1) | |
4065 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
4066 | ++pos; |
4067 | switch (block_type) | |
4068 | { | |
4069 | case 'R': | |
4070 | lseek (trace_fd, trace_regblock_size, SEEK_CUR); | |
4071 | pos += trace_regblock_size; | |
4072 | break; | |
4073 | case 'M': | |
4074 | lseek (trace_fd, 8, SEEK_CUR); | |
98e03262 SS |
4075 | gotten = read (trace_fd, &mlen, 2); |
4076 | if (gotten < 0) | |
4077 | perror_with_name (trace_filename); | |
4078 | else if (gotten < 2) | |
4079 | error (_("Premature end of file while reading trace file")); | |
8991e9fa HZ |
4080 | mlen = (unsigned short) |
4081 | extract_unsigned_integer ((gdb_byte *) &mlen, 2, | |
4082 | gdbarch_byte_order | |
4083 | (target_gdbarch)); | |
00bf0b85 SS |
4084 | lseek (trace_fd, mlen, SEEK_CUR); |
4085 | pos += (8 + 2 + mlen); | |
4086 | break; | |
4087 | case 'V': | |
98e03262 SS |
4088 | gotten = read (trace_fd, &vnum, 4); |
4089 | if (gotten < 0) | |
4090 | perror_with_name (trace_filename); | |
4091 | else if (gotten < 4) | |
4092 | error (_("Premature end of file while reading trace file")); | |
8991e9fa HZ |
4093 | vnum = (int) extract_signed_integer ((gdb_byte *) &vnum, 4, |
4094 | gdbarch_byte_order | |
4095 | (target_gdbarch)); | |
00bf0b85 SS |
4096 | if (tsvnum == vnum) |
4097 | { | |
98e03262 SS |
4098 | gotten = read (trace_fd, val, 8); |
4099 | if (gotten < 0) | |
4100 | perror_with_name (trace_filename); | |
4101 | else if (gotten < 8) | |
4102 | error (_("Premature end of file while reading trace file")); | |
8991e9fa HZ |
4103 | *val = extract_signed_integer ((gdb_byte *)val, 8, |
4104 | gdbarch_byte_order | |
4105 | (target_gdbarch)); | |
00bf0b85 SS |
4106 | return 1; |
4107 | } | |
4108 | lseek (trace_fd, 8, SEEK_CUR); | |
4109 | pos += (4 + 8); | |
4110 | break; | |
4111 | default: | |
4112 | error ("Unknown block type '%c' (0x%x) in traceframe", | |
4113 | block_type, block_type); | |
4114 | break; | |
4115 | } | |
4116 | } | |
4117 | /* Didn't find anything. */ | |
4118 | return 0; | |
4119 | } | |
4120 | ||
fce3c1f0 SS |
4121 | static int |
4122 | tfile_has_all_memory (struct target_ops *ops) | |
4123 | { | |
4124 | return 1; | |
4125 | } | |
4126 | ||
00bf0b85 SS |
4127 | static int |
4128 | tfile_has_memory (struct target_ops *ops) | |
4129 | { | |
4130 | return 1; | |
4131 | } | |
4132 | ||
4133 | static int | |
4134 | tfile_has_stack (struct target_ops *ops) | |
4135 | { | |
4136 | return 1; | |
4137 | } | |
4138 | ||
4139 | static int | |
4140 | tfile_has_registers (struct target_ops *ops) | |
4141 | { | |
4142 | return 1; | |
4143 | } | |
4144 | ||
4145 | static void | |
4146 | init_tfile_ops (void) | |
4147 | { | |
4148 | tfile_ops.to_shortname = "tfile"; | |
4149 | tfile_ops.to_longname = "Local trace dump file"; | |
3e43a32a MS |
4150 | tfile_ops.to_doc |
4151 | = "Use a trace file as a target. Specify the filename of the trace file."; | |
00bf0b85 SS |
4152 | tfile_ops.to_open = tfile_open; |
4153 | tfile_ops.to_close = tfile_close; | |
4154 | tfile_ops.to_fetch_registers = tfile_fetch_registers; | |
4155 | tfile_ops.to_xfer_partial = tfile_xfer_partial; | |
4156 | tfile_ops.to_files_info = tfile_files_info; | |
4157 | tfile_ops.to_get_trace_status = tfile_get_trace_status; | |
4158 | tfile_ops.to_trace_find = tfile_trace_find; | |
3e43a32a MS |
4159 | tfile_ops.to_get_trace_state_variable_value |
4160 | = tfile_get_trace_state_variable_value; | |
00bf0b85 | 4161 | tfile_ops.to_stratum = process_stratum; |
fce3c1f0 | 4162 | tfile_ops.to_has_all_memory = tfile_has_all_memory; |
00bf0b85 SS |
4163 | tfile_ops.to_has_memory = tfile_has_memory; |
4164 | tfile_ops.to_has_stack = tfile_has_stack; | |
4165 | tfile_ops.to_has_registers = tfile_has_registers; | |
4166 | tfile_ops.to_magic = OPS_MAGIC; | |
4167 | } | |
4168 | ||
0fb4aa4b PA |
4169 | /* Given a line of text defining a static tracepoint marker, parse it |
4170 | into a "static tracepoint marker" object. Throws an error is | |
4171 | parsing fails. If PP is non-null, it points to one past the end of | |
4172 | the parsed marker definition. */ | |
4173 | ||
4174 | void | |
4175 | parse_static_tracepoint_marker_definition (char *line, char **pp, | |
4176 | struct static_tracepoint_marker *marker) | |
4177 | { | |
4178 | char *p, *endp; | |
4179 | ULONGEST addr; | |
4180 | int end; | |
4181 | ||
4182 | p = line; | |
4183 | p = unpack_varlen_hex (p, &addr); | |
4184 | p++; /* skip a colon */ | |
4185 | ||
4186 | marker->gdbarch = target_gdbarch; | |
4187 | marker->address = (CORE_ADDR) addr; | |
4188 | ||
4189 | endp = strchr (p, ':'); | |
4190 | if (endp == NULL) | |
74232302 | 4191 | error (_("bad marker definition: %s"), line); |
0fb4aa4b PA |
4192 | |
4193 | marker->str_id = xmalloc (endp - p + 1); | |
4194 | end = hex2bin (p, (gdb_byte *) marker->str_id, (endp - p + 1) / 2); | |
4195 | marker->str_id[end] = '\0'; | |
4196 | ||
4197 | p += 2 * end; | |
4198 | p++; /* skip a colon */ | |
4199 | ||
4200 | marker->extra = xmalloc (strlen (p) + 1); | |
4201 | end = hex2bin (p, (gdb_byte *) marker->extra, strlen (p) / 2); | |
4202 | marker->extra[end] = '\0'; | |
4203 | ||
4204 | if (pp) | |
4205 | *pp = p; | |
4206 | } | |
4207 | ||
4208 | /* Release a static tracepoint marker's contents. Note that the | |
4209 | object itself isn't released here. There objects are usually on | |
4210 | the stack. */ | |
4211 | ||
4212 | void | |
4213 | release_static_tracepoint_marker (struct static_tracepoint_marker *marker) | |
4214 | { | |
4215 | xfree (marker->str_id); | |
4216 | marker->str_id = NULL; | |
4217 | } | |
4218 | ||
4219 | /* Print MARKER to gdb_stdout. */ | |
4220 | ||
4221 | static void | |
4222 | print_one_static_tracepoint_marker (int count, | |
4223 | struct static_tracepoint_marker *marker) | |
4224 | { | |
4225 | struct command_line *l; | |
4226 | struct symbol *sym; | |
4227 | ||
4228 | char wrap_indent[80]; | |
4229 | char extra_field_indent[80]; | |
4230 | struct ui_stream *stb = ui_out_stream_new (uiout); | |
4231 | struct cleanup *old_chain = make_cleanup_ui_out_stream_delete (stb); | |
4232 | struct cleanup *bkpt_chain; | |
4233 | VEC(breakpoint_p) *tracepoints; | |
4234 | ||
4235 | struct symtab_and_line sal; | |
4236 | ||
4237 | init_sal (&sal); | |
4238 | ||
4239 | sal.pc = marker->address; | |
4240 | ||
4241 | tracepoints = static_tracepoints_here (marker->address); | |
4242 | ||
4243 | bkpt_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "marker"); | |
4244 | ||
4245 | /* A counter field to help readability. This is not a stable | |
4246 | identifier! */ | |
4247 | ui_out_field_int (uiout, "count", count); | |
4248 | ||
4249 | ui_out_field_string (uiout, "marker-id", marker->str_id); | |
4250 | ||
4251 | ui_out_field_fmt (uiout, "enabled", "%c", | |
4252 | !VEC_empty (breakpoint_p, tracepoints) ? 'y' : 'n'); | |
4253 | ui_out_spaces (uiout, 2); | |
4254 | ||
4255 | strcpy (wrap_indent, " "); | |
4256 | ||
4257 | if (gdbarch_addr_bit (marker->gdbarch) <= 32) | |
4258 | strcat (wrap_indent, " "); | |
4259 | else | |
4260 | strcat (wrap_indent, " "); | |
4261 | ||
4262 | strcpy (extra_field_indent, " "); | |
4263 | ||
4264 | ui_out_field_core_addr (uiout, "addr", marker->gdbarch, marker->address); | |
4265 | ||
4266 | sal = find_pc_line (marker->address, 0); | |
4267 | sym = find_pc_sect_function (marker->address, NULL); | |
4268 | if (sym) | |
4269 | { | |
4270 | ui_out_text (uiout, "in "); | |
4271 | ui_out_field_string (uiout, "func", | |
4272 | SYMBOL_PRINT_NAME (sym)); | |
4273 | ui_out_wrap_hint (uiout, wrap_indent); | |
4274 | ui_out_text (uiout, " at "); | |
4275 | } | |
4276 | else | |
4277 | ui_out_field_skip (uiout, "func"); | |
4278 | ||
4279 | if (sal.symtab != NULL) | |
4280 | { | |
4281 | ui_out_field_string (uiout, "file", sal.symtab->filename); | |
4282 | ui_out_text (uiout, ":"); | |
4283 | ||
4284 | if (ui_out_is_mi_like_p (uiout)) | |
4285 | { | |
4286 | char *fullname = symtab_to_fullname (sal.symtab); | |
4287 | ||
4288 | if (fullname) | |
4289 | ui_out_field_string (uiout, "fullname", fullname); | |
4290 | } | |
4291 | else | |
4292 | ui_out_field_skip (uiout, "fullname"); | |
4293 | ||
4294 | ui_out_field_int (uiout, "line", sal.line); | |
4295 | } | |
4296 | else | |
4297 | { | |
4298 | ui_out_field_skip (uiout, "fullname"); | |
4299 | ui_out_field_skip (uiout, "line"); | |
4300 | } | |
4301 | ||
4302 | ui_out_text (uiout, "\n"); | |
4303 | ui_out_text (uiout, extra_field_indent); | |
4304 | ui_out_text (uiout, _("Data: \"")); | |
4305 | ui_out_field_string (uiout, "extra-data", marker->extra); | |
4306 | ui_out_text (uiout, "\"\n"); | |
4307 | ||
4308 | if (!VEC_empty (breakpoint_p, tracepoints)) | |
4309 | { | |
4310 | struct cleanup *cleanup_chain; | |
4311 | int ix; | |
4312 | struct breakpoint *b; | |
4313 | ||
4314 | cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, | |
4315 | "tracepoints-at"); | |
4316 | ||
4317 | ui_out_text (uiout, extra_field_indent); | |
4318 | ui_out_text (uiout, _("Probed by static tracepoints: ")); | |
4319 | for (ix = 0; VEC_iterate(breakpoint_p, tracepoints, ix, b); ix++) | |
4320 | { | |
4321 | if (ix > 0) | |
4322 | ui_out_text (uiout, ", "); | |
4323 | ui_out_text (uiout, "#"); | |
4324 | ui_out_field_int (uiout, "tracepoint-id", b->number); | |
4325 | } | |
4326 | ||
4327 | do_cleanups (cleanup_chain); | |
4328 | ||
4329 | if (ui_out_is_mi_like_p (uiout)) | |
4330 | ui_out_field_int (uiout, "number-of-tracepoints", | |
4331 | VEC_length(breakpoint_p, tracepoints)); | |
4332 | else | |
4333 | ui_out_text (uiout, "\n"); | |
4334 | } | |
4335 | VEC_free (breakpoint_p, tracepoints); | |
4336 | ||
4337 | do_cleanups (bkpt_chain); | |
4338 | do_cleanups (old_chain); | |
4339 | } | |
4340 | ||
4341 | static void | |
4342 | info_static_tracepoint_markers_command (char *arg, int from_tty) | |
4343 | { | |
4344 | VEC(static_tracepoint_marker_p) *markers; | |
4345 | struct cleanup *old_chain; | |
4346 | struct static_tracepoint_marker *marker; | |
4347 | int i; | |
4348 | ||
4349 | old_chain | |
4350 | = make_cleanup_ui_out_table_begin_end (uiout, 5, -1, | |
4351 | "StaticTracepointMarkersTable"); | |
4352 | ||
4353 | ui_out_table_header (uiout, 7, ui_left, "counter", "Cnt"); | |
4354 | ||
4355 | ui_out_table_header (uiout, 40, ui_left, "marker-id", "ID"); | |
4356 | ||
4357 | ui_out_table_header (uiout, 3, ui_left, "enabled", "Enb"); | |
4358 | if (gdbarch_addr_bit (target_gdbarch) <= 32) | |
4359 | ui_out_table_header (uiout, 10, ui_left, "addr", "Address"); | |
4360 | else | |
4361 | ui_out_table_header (uiout, 18, ui_left, "addr", "Address"); | |
4362 | ui_out_table_header (uiout, 40, ui_noalign, "what", "What"); | |
4363 | ||
4364 | ui_out_table_body (uiout); | |
4365 | ||
4366 | markers = target_static_tracepoint_markers_by_strid (NULL); | |
4367 | make_cleanup (VEC_cleanup (static_tracepoint_marker_p), &markers); | |
4368 | ||
4369 | for (i = 0; | |
4370 | VEC_iterate (static_tracepoint_marker_p, | |
4371 | markers, i, marker); | |
4372 | i++) | |
4373 | { | |
4374 | print_one_static_tracepoint_marker (i + 1, marker); | |
4375 | release_static_tracepoint_marker (marker); | |
4376 | } | |
4377 | ||
4378 | do_cleanups (old_chain); | |
4379 | } | |
4380 | ||
4381 | /* The $_sdata convenience variable is a bit special. We don't know | |
4382 | for sure type of the value until we actually have a chance to fetch | |
4383 | the data --- the size of the object depends on what has been | |
4384 | collected. We solve this by making $_sdata be an internalvar that | |
4385 | creates a new value on access. */ | |
4386 | ||
4387 | /* Return a new value with the correct type for the sdata object of | |
4388 | the current trace frame. Return a void value if there's no object | |
4389 | available. */ | |
4390 | ||
4391 | static struct value * | |
4392 | sdata_make_value (struct gdbarch *gdbarch, struct internalvar *var) | |
4393 | { | |
4394 | LONGEST size; | |
4395 | gdb_byte *buf; | |
4396 | ||
4397 | /* We need to read the whole object before we know its size. */ | |
4398 | size = target_read_alloc (¤t_target, | |
4399 | TARGET_OBJECT_STATIC_TRACE_DATA, | |
4400 | NULL, &buf); | |
4401 | if (size >= 0) | |
4402 | { | |
4403 | struct value *v; | |
4404 | struct type *type; | |
4405 | ||
4406 | type = init_vector_type (builtin_type (gdbarch)->builtin_true_char, | |
4407 | size); | |
4408 | v = allocate_value (type); | |
4409 | memcpy (value_contents_raw (v), buf, size); | |
4410 | xfree (buf); | |
4411 | return v; | |
4412 | } | |
4413 | else | |
4414 | return allocate_value (builtin_type (gdbarch)->builtin_void); | |
4415 | } | |
4416 | ||
c906108c SS |
4417 | /* module initialization */ |
4418 | void | |
fba45db2 | 4419 | _initialize_tracepoint (void) |
c906108c | 4420 | { |
fa58ee11 EZ |
4421 | struct cmd_list_element *c; |
4422 | ||
0fb4aa4b PA |
4423 | /* Explicitly create without lookup, since that tries to create a |
4424 | value with a void typed value, and when we get here, gdbarch | |
4425 | isn't initialized yet. At this point, we're quite sure there | |
4426 | isn't another convenience variable of the same name. */ | |
4427 | create_internalvar_type_lazy ("_sdata", sdata_make_value); | |
4428 | ||
c906108c SS |
4429 | traceframe_number = -1; |
4430 | tracepoint_number = -1; | |
4431 | ||
c906108c SS |
4432 | if (tracepoint_list.list == NULL) |
4433 | { | |
4434 | tracepoint_list.listsize = 128; | |
c5aa993b | 4435 | tracepoint_list.list = xmalloc |
c906108c SS |
4436 | (tracepoint_list.listsize * sizeof (struct memrange)); |
4437 | } | |
4438 | if (tracepoint_list.aexpr_list == NULL) | |
4439 | { | |
4440 | tracepoint_list.aexpr_listsize = 128; | |
4441 | tracepoint_list.aexpr_list = xmalloc | |
4442 | (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
4443 | } | |
4444 | ||
4445 | if (stepping_list.list == NULL) | |
4446 | { | |
4447 | stepping_list.listsize = 128; | |
c5aa993b | 4448 | stepping_list.list = xmalloc |
c906108c SS |
4449 | (stepping_list.listsize * sizeof (struct memrange)); |
4450 | } | |
4451 | ||
4452 | if (stepping_list.aexpr_list == NULL) | |
4453 | { | |
4454 | stepping_list.aexpr_listsize = 128; | |
4455 | stepping_list.aexpr_list = xmalloc | |
4456 | (stepping_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
4457 | } | |
4458 | ||
c5aa993b | 4459 | add_info ("scope", scope_info, |
1bedd215 | 4460 | _("List the variables local to a scope")); |
c906108c | 4461 | |
e00d1dc8 | 4462 | add_cmd ("tracepoints", class_trace, NULL, |
1a966eab | 4463 | _("Tracing of program execution without stopping the program."), |
c906108c SS |
4464 | &cmdlist); |
4465 | ||
c5aa993b | 4466 | add_com ("tdump", class_trace, trace_dump_command, |
1bedd215 | 4467 | _("Print everything collected at the current tracepoint.")); |
c906108c | 4468 | |
00bf0b85 SS |
4469 | add_com ("tsave", class_trace, trace_save_command, _("\ |
4470 | Save the trace data to a file.\n\ | |
4471 | Use the '-r' option to direct the target to save directly to the file,\n\ | |
4472 | using its own filesystem.")); | |
4473 | ||
f61e138d SS |
4474 | c = add_com ("tvariable", class_trace, trace_variable_command,_("\ |
4475 | Define a trace state variable.\n\ | |
4476 | Argument is a $-prefixed name, optionally followed\n\ | |
4477 | by '=' and an expression that sets the initial value\n\ | |
4478 | at the start of tracing.")); | |
4479 | set_cmd_completer (c, expression_completer); | |
4480 | ||
4481 | add_cmd ("tvariable", class_trace, delete_trace_variable_command, _("\ | |
4482 | Delete one or more trace state variables.\n\ | |
4483 | Arguments are the names of the variables to delete.\n\ | |
4484 | If no arguments are supplied, delete all variables."), &deletelist); | |
4485 | /* FIXME add a trace variable completer */ | |
4486 | ||
4487 | add_info ("tvariables", tvariables_info, _("\ | |
4488 | Status of trace state variables and their values.\n\ | |
0fb4aa4b PA |
4489 | ")); |
4490 | ||
4491 | add_info ("static-tracepoint-markers", | |
4492 | info_static_tracepoint_markers_command, _("\ | |
4493 | List target static tracepoints markers.\n\ | |
f61e138d SS |
4494 | ")); |
4495 | ||
1bedd215 AC |
4496 | add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\ |
4497 | Select a trace frame;\n\ | |
4498 | No argument means forward by one frame; '-' means backward by one frame."), | |
c906108c SS |
4499 | &tfindlist, "tfind ", 1, &cmdlist); |
4500 | ||
1a966eab | 4501 | add_cmd ("outside", class_trace, trace_find_outside_command, _("\ |
081dfbf7 | 4502 | Select a trace frame whose PC is outside the given range (exclusive).\n\ |
1a966eab | 4503 | Usage: tfind outside addr1, addr2"), |
c906108c SS |
4504 | &tfindlist); |
4505 | ||
1a966eab | 4506 | add_cmd ("range", class_trace, trace_find_range_command, _("\ |
081dfbf7 | 4507 | Select a trace frame whose PC is in the given range (inclusive).\n\ |
1a966eab | 4508 | Usage: tfind range addr1,addr2"), |
c906108c SS |
4509 | &tfindlist); |
4510 | ||
1a966eab AC |
4511 | add_cmd ("line", class_trace, trace_find_line_command, _("\ |
4512 | Select a trace frame by source line.\n\ | |
cce7e648 | 4513 | Argument can be a line number (with optional source file),\n\ |
c906108c | 4514 | a function name, or '*' followed by an address.\n\ |
1a966eab | 4515 | Default argument is 'the next source line that was traced'."), |
c906108c SS |
4516 | &tfindlist); |
4517 | ||
1a966eab AC |
4518 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, _("\ |
4519 | Select a trace frame by tracepoint number.\n\ | |
4520 | Default is the tracepoint for the current trace frame."), | |
c906108c SS |
4521 | &tfindlist); |
4522 | ||
1a966eab AC |
4523 | add_cmd ("pc", class_trace, trace_find_pc_command, _("\ |
4524 | Select a trace frame by PC.\n\ | |
4525 | Default is the current PC, or the PC of the current trace frame."), | |
c906108c SS |
4526 | &tfindlist); |
4527 | ||
1a966eab AC |
4528 | add_cmd ("end", class_trace, trace_find_end_command, _("\ |
4529 | Synonym for 'none'.\n\ | |
4530 | De-select any trace frame and resume 'live' debugging."), | |
c906108c SS |
4531 | &tfindlist); |
4532 | ||
4533 | add_cmd ("none", class_trace, trace_find_none_command, | |
1a966eab | 4534 | _("De-select any trace frame and resume 'live' debugging."), |
c906108c SS |
4535 | &tfindlist); |
4536 | ||
4537 | add_cmd ("start", class_trace, trace_find_start_command, | |
1a966eab | 4538 | _("Select the first trace frame in the trace buffer."), |
c906108c SS |
4539 | &tfindlist); |
4540 | ||
c5aa993b | 4541 | add_com ("tstatus", class_trace, trace_status_command, |
1bedd215 | 4542 | _("Display the status of the current trace data collection.")); |
c906108c | 4543 | |
c5aa993b | 4544 | add_com ("tstop", class_trace, trace_stop_command, |
1bedd215 | 4545 | _("Stop trace data collection.")); |
c906108c SS |
4546 | |
4547 | add_com ("tstart", class_trace, trace_start_command, | |
1bedd215 | 4548 | _("Start trace data collection.")); |
c906108c | 4549 | |
1bedd215 AC |
4550 | add_com ("end", class_trace, end_actions_pseudocommand, _("\ |
4551 | Ends a list of commands or actions.\n\ | |
c906108c SS |
4552 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
4553 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
4554 | such a list.\n\n\ | |
1bedd215 | 4555 | Note: the \"end\" command cannot be used at the gdb prompt.")); |
c906108c | 4556 | |
1bedd215 AC |
4557 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, _("\ |
4558 | Specify single-stepping behavior at a tracepoint.\n\ | |
c906108c SS |
4559 | Argument is number of instructions to trace in single-step mode\n\ |
4560 | following the tracepoint. This command is normally followed by\n\ | |
4561 | one or more \"collect\" commands, to specify what to collect\n\ | |
4562 | while single-stepping.\n\n\ | |
1bedd215 | 4563 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 4564 | |
c5aa993b JM |
4565 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
4566 | add_com_alias ("stepping", "while-stepping", class_alias, 0); | |
c906108c | 4567 | |
1bedd215 AC |
4568 | add_com ("collect", class_trace, collect_pseudocommand, _("\ |
4569 | Specify one or more data items to be collected at a tracepoint.\n\ | |
c906108c SS |
4570 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
4571 | collect all data (variables, registers) referenced by that expression.\n\ | |
4572 | Also accepts the following special arguments:\n\ | |
4573 | $regs -- all registers.\n\ | |
4574 | $args -- all function arguments.\n\ | |
4575 | $locals -- all variables local to the block/function scope.\n\ | |
0fb4aa4b | 4576 | $_sdata -- static tracepoint data (ignored for non-static tracepoints).\n\ |
1bedd215 | 4577 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 4578 | |
6da95a67 SS |
4579 | add_com ("teval", class_trace, teval_pseudocommand, _("\ |
4580 | Specify one or more expressions to be evaluated at a tracepoint.\n\ | |
4581 | Accepts a comma-separated list of (one or more) expressions.\n\ | |
4582 | The result of each evaluation will be discarded.\n\ | |
4583 | Note: this command can only be used in a tracepoint \"actions\" list.")); | |
4584 | ||
1bedd215 AC |
4585 | add_com ("actions", class_trace, trace_actions_command, _("\ |
4586 | Specify the actions to be taken at a tracepoint.\n\ | |
cce7e648 PA |
4587 | Tracepoint actions may include collecting of specified data,\n\ |
4588 | single-stepping, or enabling/disabling other tracepoints,\n\ | |
1bedd215 | 4589 | depending on target's capabilities.")); |
c906108c | 4590 | |
236f1d4d SS |
4591 | default_collect = xstrdup (""); |
4592 | add_setshow_string_cmd ("default-collect", class_trace, | |
4593 | &default_collect, _("\ | |
4594 | Set the list of expressions to collect by default"), _("\ | |
4595 | Show the list of expressions to collect by default"), NULL, | |
4596 | NULL, NULL, | |
4597 | &setlist, &showlist); | |
4598 | ||
d5551862 SS |
4599 | add_setshow_boolean_cmd ("disconnected-tracing", no_class, |
4600 | &disconnected_tracing, _("\ | |
4601 | Set whether tracing continues after GDB disconnects."), _("\ | |
4602 | Show whether tracing continues after GDB disconnects."), _("\ | |
4603 | Use this to continue a tracing run even if GDB disconnects\n\ | |
4604 | or detaches from the target. You can reconnect later and look at\n\ | |
4605 | trace data collected in the meantime."), | |
4606 | set_disconnected_tracing, | |
4607 | NULL, | |
4608 | &setlist, | |
4609 | &showlist); | |
00bf0b85 | 4610 | |
4daf5ac0 SS |
4611 | add_setshow_boolean_cmd ("circular-trace-buffer", no_class, |
4612 | &circular_trace_buffer, _("\ | |
4613 | Set target's use of circular trace buffer."), _("\ | |
4614 | Show target's use of circular trace buffer."), _("\ | |
4615 | Use this to make the trace buffer into a circular buffer,\n\ | |
4616 | which will discard traceframes (oldest first) instead of filling\n\ | |
4617 | up and stopping the trace run."), | |
4618 | set_circular_trace_buffer, | |
4619 | NULL, | |
4620 | &setlist, | |
4621 | &showlist); | |
4622 | ||
00bf0b85 SS |
4623 | init_tfile_ops (); |
4624 | ||
4625 | add_target (&tfile_ops); | |
c906108c | 4626 | } |