Commit | Line | Data |
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c906108c | 1 | /* Tracing functionality for remote targets in custom GDB protocol |
9f60d481 | 2 | |
6aba47ca | 3 | Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, |
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" | |
2a7498d8 | 53 | #include "memrange.h" |
d0e92d82 | 54 | #include "printcmd.h" |
c906108c SS |
55 | |
56 | /* readline include files */ | |
dbda9972 AC |
57 | #include "readline/readline.h" |
58 | #include "readline/history.h" | |
c906108c SS |
59 | |
60 | /* readline defines this. */ | |
61 | #undef savestring | |
62 | ||
63 | #ifdef HAVE_UNISTD_H | |
64 | #include <unistd.h> | |
65 | #endif | |
66 | ||
00bf0b85 SS |
67 | #ifndef O_LARGEFILE |
68 | #define O_LARGEFILE 0 | |
69 | #endif | |
70 | ||
71 | extern int hex2bin (const char *hex, gdb_byte *bin, int count); | |
72 | extern int bin2hex (const gdb_byte *bin, char *hex, int count); | |
73 | ||
d5551862 SS |
74 | extern void stop_tracing (); |
75 | ||
d183932d MS |
76 | /* Maximum length of an agent aexpression. |
77 | This accounts for the fact that packets are limited to 400 bytes | |
c906108c SS |
78 | (which includes everything -- including the checksum), and assumes |
79 | the worst case of maximum length for each of the pieces of a | |
80 | continuation packet. | |
c5aa993b | 81 | |
c906108c SS |
82 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
83 | large. (400 - 31)/2 == 184 */ | |
84 | #define MAX_AGENT_EXPR_LEN 184 | |
85 | ||
98c5b216 TT |
86 | /* A hook used to notify the UI of tracepoint operations. */ |
87 | ||
88 | void (*deprecated_trace_find_hook) (char *arg, int from_tty); | |
89 | void (*deprecated_trace_start_stop_hook) (int start, int from_tty); | |
c906108c | 90 | |
9a4105ab AC |
91 | extern void (*deprecated_readline_begin_hook) (char *, ...); |
92 | extern char *(*deprecated_readline_hook) (char *); | |
93 | extern void (*deprecated_readline_end_hook) (void); | |
c906108c | 94 | |
104c1213 JM |
95 | /* GDB commands implemented in other modules: |
96 | */ | |
97 | ||
a14ed312 | 98 | extern void output_command (char *, int); |
104c1213 | 99 | |
c906108c SS |
100 | /* |
101 | Tracepoint.c: | |
102 | ||
103 | This module defines the following debugger commands: | |
104 | trace : set a tracepoint on a function, line, or address. | |
105 | info trace : list all debugger-defined tracepoints. | |
106 | delete trace : delete one or more tracepoints. | |
107 | enable trace : enable one or more tracepoints. | |
108 | disable trace : disable one or more tracepoints. | |
109 | actions : specify actions to be taken at a tracepoint. | |
110 | passcount : specify a pass count for a tracepoint. | |
111 | tstart : start a trace experiment. | |
112 | tstop : stop a trace experiment. | |
113 | tstatus : query the status of a trace experiment. | |
114 | tfind : find a trace frame in the trace buffer. | |
115 | tdump : print everything collected at the current tracepoint. | |
116 | save-tracepoints : write tracepoint setup into a file. | |
117 | ||
118 | This module defines the following user-visible debugger variables: | |
119 | $trace_frame : sequence number of trace frame currently being debugged. | |
120 | $trace_line : source line of trace frame currently being debugged. | |
121 | $trace_file : source file of trace frame currently being debugged. | |
122 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
c5aa993b | 123 | */ |
c906108c SS |
124 | |
125 | ||
126 | /* ======= Important global variables: ======= */ | |
127 | ||
f61e138d SS |
128 | /* The list of all trace state variables. We don't retain pointers to |
129 | any of these for any reason - API is by name or number only - so it | |
130 | works to have a vector of objects. */ | |
131 | ||
132 | typedef struct trace_state_variable tsv_s; | |
133 | DEF_VEC_O(tsv_s); | |
134 | ||
b3b9301e PA |
135 | /* An object describing the contents of a traceframe. */ |
136 | ||
137 | struct traceframe_info | |
138 | { | |
139 | /* Collected memory. */ | |
140 | VEC(mem_range_s) *memory; | |
141 | }; | |
142 | ||
f61e138d SS |
143 | static VEC(tsv_s) *tvariables; |
144 | ||
145 | /* The next integer to assign to a variable. */ | |
146 | ||
147 | static int next_tsv_number = 1; | |
148 | ||
c906108c SS |
149 | /* Number of last traceframe collected. */ |
150 | static int traceframe_number; | |
151 | ||
152 | /* Tracepoint for last traceframe collected. */ | |
153 | static int tracepoint_number; | |
154 | ||
c378eb4e | 155 | /* Symbol for function for last traceframe collected. */ |
c906108c SS |
156 | static struct symbol *traceframe_fun; |
157 | ||
c378eb4e | 158 | /* Symtab and line for last traceframe collected. */ |
c906108c SS |
159 | static struct symtab_and_line traceframe_sal; |
160 | ||
b3b9301e PA |
161 | /* The traceframe info of the current traceframe. NULL if we haven't |
162 | yet attempted to fetch it, or if the target does not support | |
163 | fetching this object, or if we're not inspecting a traceframe | |
164 | presently. */ | |
165 | static struct traceframe_info *traceframe_info; | |
166 | ||
c378eb4e | 167 | /* Tracing command lists. */ |
c906108c SS |
168 | static struct cmd_list_element *tfindlist; |
169 | ||
236f1d4d | 170 | /* List of expressions to collect by default at each tracepoint hit. */ |
35b1e5cc | 171 | char *default_collect = ""; |
236f1d4d | 172 | |
d5551862 SS |
173 | static int disconnected_tracing; |
174 | ||
4daf5ac0 SS |
175 | /* This variable controls whether we ask the target for a linear or |
176 | circular trace buffer. */ | |
177 | ||
178 | static int circular_trace_buffer; | |
179 | ||
c906108c | 180 | /* ======= Important command functions: ======= */ |
a14ed312 KB |
181 | static void trace_actions_command (char *, int); |
182 | static void trace_start_command (char *, int); | |
183 | static void trace_stop_command (char *, int); | |
184 | static void trace_status_command (char *, int); | |
185 | static void trace_find_command (char *, int); | |
186 | static void trace_find_pc_command (char *, int); | |
187 | static void trace_find_tracepoint_command (char *, int); | |
188 | static void trace_find_line_command (char *, int); | |
189 | static void trace_find_range_command (char *, int); | |
190 | static void trace_find_outside_command (char *, int); | |
a14ed312 | 191 | static void trace_dump_command (char *, int); |
c906108c SS |
192 | |
193 | /* support routines */ | |
c906108c SS |
194 | |
195 | struct collection_list; | |
a14ed312 | 196 | static void add_aexpr (struct collection_list *, struct agent_expr *); |
47b667de | 197 | static char *mem2hex (gdb_byte *, char *, int); |
a14ed312 KB |
198 | static void add_register (struct collection_list *collection, |
199 | unsigned int regno); | |
392a587b | 200 | |
d5551862 SS |
201 | extern void send_disconnected_tracing_value (int value); |
202 | ||
00bf0b85 SS |
203 | static void free_uploaded_tps (struct uploaded_tp **utpp); |
204 | static void free_uploaded_tsvs (struct uploaded_tsv **utsvp); | |
205 | ||
206 | ||
a14ed312 | 207 | extern void _initialize_tracepoint (void); |
c906108c | 208 | |
00bf0b85 SS |
209 | static struct trace_status trace_status; |
210 | ||
211 | char *stop_reason_names[] = { | |
212 | "tunknown", | |
213 | "tnotrun", | |
214 | "tstop", | |
215 | "tfull", | |
216 | "tdisconnected", | |
6c28cbf2 SS |
217 | "tpasscount", |
218 | "terror" | |
00bf0b85 SS |
219 | }; |
220 | ||
221 | struct trace_status * | |
222 | current_trace_status () | |
223 | { | |
224 | return &trace_status; | |
225 | } | |
226 | ||
b3b9301e PA |
227 | /* Destroy INFO. */ |
228 | ||
229 | static void | |
230 | free_traceframe_info (struct traceframe_info *info) | |
231 | { | |
232 | if (info != NULL) | |
233 | { | |
234 | VEC_free (mem_range_s, info->memory); | |
235 | ||
236 | xfree (info); | |
237 | } | |
238 | } | |
239 | ||
240 | /* Free and and clear the traceframe info cache of the current | |
241 | traceframe. */ | |
242 | ||
243 | static void | |
244 | clear_traceframe_info (void) | |
245 | { | |
246 | free_traceframe_info (traceframe_info); | |
247 | traceframe_info = NULL; | |
248 | } | |
249 | ||
c906108c SS |
250 | /* Set traceframe number to NUM. */ |
251 | static void | |
fba45db2 | 252 | set_traceframe_num (int num) |
c906108c SS |
253 | { |
254 | traceframe_number = num; | |
4fa62494 | 255 | set_internalvar_integer (lookup_internalvar ("trace_frame"), num); |
c906108c SS |
256 | } |
257 | ||
258 | /* Set tracepoint number to NUM. */ | |
259 | static void | |
fba45db2 | 260 | set_tracepoint_num (int num) |
c906108c SS |
261 | { |
262 | tracepoint_number = num; | |
4fa62494 | 263 | set_internalvar_integer (lookup_internalvar ("tracepoint"), num); |
c906108c SS |
264 | } |
265 | ||
266 | /* Set externally visible debug variables for querying/printing | |
c378eb4e | 267 | the traceframe context (line, function, file). */ |
c906108c SS |
268 | |
269 | static void | |
fb14de7b | 270 | set_traceframe_context (struct frame_info *trace_frame) |
c906108c | 271 | { |
fb14de7b UW |
272 | CORE_ADDR trace_pc; |
273 | ||
3e43a32a | 274 | if (trace_frame == NULL) /* Cease debugging any trace buffers. */ |
c906108c SS |
275 | { |
276 | traceframe_fun = 0; | |
277 | traceframe_sal.pc = traceframe_sal.line = 0; | |
278 | traceframe_sal.symtab = NULL; | |
4fa62494 UW |
279 | clear_internalvar (lookup_internalvar ("trace_func")); |
280 | clear_internalvar (lookup_internalvar ("trace_file")); | |
281 | set_internalvar_integer (lookup_internalvar ("trace_line"), -1); | |
c906108c SS |
282 | return; |
283 | } | |
284 | ||
d183932d | 285 | /* Save as globals for internal use. */ |
fb14de7b | 286 | trace_pc = get_frame_pc (trace_frame); |
c906108c SS |
287 | traceframe_sal = find_pc_line (trace_pc, 0); |
288 | traceframe_fun = find_pc_function (trace_pc); | |
289 | ||
d183932d MS |
290 | /* Save linenumber as "$trace_line", a debugger variable visible to |
291 | users. */ | |
4fa62494 UW |
292 | set_internalvar_integer (lookup_internalvar ("trace_line"), |
293 | traceframe_sal.line); | |
c906108c | 294 | |
d183932d MS |
295 | /* Save func name as "$trace_func", a debugger variable visible to |
296 | users. */ | |
4fa62494 UW |
297 | if (traceframe_fun == NULL |
298 | || SYMBOL_LINKAGE_NAME (traceframe_fun) == NULL) | |
299 | clear_internalvar (lookup_internalvar ("trace_func")); | |
c906108c | 300 | else |
78267919 UW |
301 | set_internalvar_string (lookup_internalvar ("trace_func"), |
302 | SYMBOL_LINKAGE_NAME (traceframe_fun)); | |
c906108c | 303 | |
d183932d MS |
304 | /* Save file name as "$trace_file", a debugger variable visible to |
305 | users. */ | |
4fa62494 UW |
306 | if (traceframe_sal.symtab == NULL |
307 | || traceframe_sal.symtab->filename == NULL) | |
308 | clear_internalvar (lookup_internalvar ("trace_file")); | |
c906108c | 309 | else |
78267919 UW |
310 | set_internalvar_string (lookup_internalvar ("trace_file"), |
311 | traceframe_sal.symtab->filename); | |
c906108c SS |
312 | } |
313 | ||
f61e138d SS |
314 | /* Create a new trace state variable with the given name. */ |
315 | ||
316 | struct trace_state_variable * | |
317 | create_trace_state_variable (const char *name) | |
318 | { | |
319 | struct trace_state_variable tsv; | |
320 | ||
321 | memset (&tsv, 0, sizeof (tsv)); | |
40e1c229 | 322 | tsv.name = xstrdup (name); |
f61e138d SS |
323 | tsv.number = next_tsv_number++; |
324 | return VEC_safe_push (tsv_s, tvariables, &tsv); | |
325 | } | |
326 | ||
327 | /* Look for a trace state variable of the given name. */ | |
328 | ||
329 | struct trace_state_variable * | |
330 | find_trace_state_variable (const char *name) | |
331 | { | |
332 | struct trace_state_variable *tsv; | |
333 | int ix; | |
334 | ||
335 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
336 | if (strcmp (name, tsv->name) == 0) | |
337 | return tsv; | |
338 | ||
339 | return NULL; | |
340 | } | |
341 | ||
342 | void | |
343 | delete_trace_state_variable (const char *name) | |
344 | { | |
345 | struct trace_state_variable *tsv; | |
346 | int ix; | |
347 | ||
348 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
349 | if (strcmp (name, tsv->name) == 0) | |
350 | { | |
40e1c229 | 351 | xfree ((void *)tsv->name); |
f61e138d SS |
352 | VEC_unordered_remove (tsv_s, tvariables, ix); |
353 | return; | |
354 | } | |
355 | ||
356 | warning (_("No trace variable named \"$%s\", not deleting"), name); | |
357 | } | |
358 | ||
359 | /* The 'tvariable' command collects a name and optional expression to | |
360 | evaluate into an initial value. */ | |
361 | ||
362 | void | |
363 | trace_variable_command (char *args, int from_tty) | |
364 | { | |
365 | struct expression *expr; | |
366 | struct cleanup *old_chain; | |
367 | struct internalvar *intvar = NULL; | |
368 | LONGEST initval = 0; | |
369 | struct trace_state_variable *tsv; | |
370 | ||
371 | if (!args || !*args) | |
372 | error_no_arg (_("trace state variable name")); | |
373 | ||
374 | /* All the possible valid arguments are expressions. */ | |
375 | expr = parse_expression (args); | |
376 | old_chain = make_cleanup (free_current_contents, &expr); | |
377 | ||
378 | if (expr->nelts == 0) | |
379 | error (_("No expression?")); | |
380 | ||
381 | /* Only allow two syntaxes; "$name" and "$name=value". */ | |
382 | if (expr->elts[0].opcode == OP_INTERNALVAR) | |
383 | { | |
384 | intvar = expr->elts[1].internalvar; | |
385 | } | |
386 | else if (expr->elts[0].opcode == BINOP_ASSIGN | |
387 | && expr->elts[1].opcode == OP_INTERNALVAR) | |
388 | { | |
389 | intvar = expr->elts[2].internalvar; | |
390 | initval = value_as_long (evaluate_subexpression_type (expr, 4)); | |
391 | } | |
392 | else | |
393 | error (_("Syntax must be $NAME [ = EXPR ]")); | |
394 | ||
395 | if (!intvar) | |
396 | error (_("No name given")); | |
397 | ||
398 | if (strlen (internalvar_name (intvar)) <= 0) | |
399 | error (_("Must supply a non-empty variable name")); | |
400 | ||
401 | /* If the variable already exists, just change its initial value. */ | |
402 | tsv = find_trace_state_variable (internalvar_name (intvar)); | |
403 | if (tsv) | |
404 | { | |
405 | tsv->initial_value = initval; | |
3e43a32a MS |
406 | printf_filtered (_("Trace state variable $%s " |
407 | "now has initial value %s.\n"), | |
f61e138d | 408 | tsv->name, plongest (tsv->initial_value)); |
f90824dc | 409 | do_cleanups (old_chain); |
f61e138d SS |
410 | return; |
411 | } | |
412 | ||
413 | /* Create a new variable. */ | |
414 | tsv = create_trace_state_variable (internalvar_name (intvar)); | |
415 | tsv->initial_value = initval; | |
416 | ||
3e43a32a MS |
417 | printf_filtered (_("Trace state variable $%s " |
418 | "created, with initial value %s.\n"), | |
f61e138d SS |
419 | tsv->name, plongest (tsv->initial_value)); |
420 | ||
421 | do_cleanups (old_chain); | |
422 | } | |
423 | ||
424 | void | |
425 | delete_trace_variable_command (char *args, int from_tty) | |
426 | { | |
2a2287c7 | 427 | int ix; |
f61e138d SS |
428 | char **argv; |
429 | struct cleanup *back_to; | |
f61e138d SS |
430 | |
431 | if (args == NULL) | |
432 | { | |
433 | if (query (_("Delete all trace state variables? "))) | |
434 | VEC_free (tsv_s, tvariables); | |
435 | dont_repeat (); | |
436 | return; | |
437 | } | |
438 | ||
439 | argv = gdb_buildargv (args); | |
440 | back_to = make_cleanup_freeargv (argv); | |
441 | ||
2a2287c7 | 442 | for (ix = 0; argv[ix] != NULL; ix++) |
f61e138d | 443 | { |
2a2287c7 MS |
444 | if (*argv[ix] == '$') |
445 | delete_trace_state_variable (argv[ix] + 1); | |
f61e138d | 446 | else |
2a2287c7 | 447 | warning (_("Name \"%s\" not prefixed with '$', ignoring"), argv[ix]); |
f61e138d SS |
448 | } |
449 | ||
450 | do_cleanups (back_to); | |
451 | ||
452 | dont_repeat (); | |
453 | } | |
454 | ||
40e1c229 VP |
455 | void |
456 | tvariables_info_1 (void) | |
f61e138d SS |
457 | { |
458 | struct trace_state_variable *tsv; | |
459 | int ix; | |
40e1c229 VP |
460 | int count = 0; |
461 | struct cleanup *back_to; | |
f61e138d | 462 | |
40e1c229 | 463 | if (VEC_length (tsv_s, tvariables) == 0 && !ui_out_is_mi_like_p (uiout)) |
f61e138d SS |
464 | { |
465 | printf_filtered (_("No trace state variables.\n")); | |
466 | return; | |
467 | } | |
468 | ||
35b1e5cc | 469 | /* Try to acquire values from the target. */ |
4baf5cf4 | 470 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix, ++count) |
35b1e5cc SS |
471 | tsv->value_known = target_get_trace_state_variable_value (tsv->number, |
472 | &(tsv->value)); | |
473 | ||
40e1c229 VP |
474 | back_to = make_cleanup_ui_out_table_begin_end (uiout, 3, |
475 | count, "trace-variables"); | |
476 | ui_out_table_header (uiout, 15, ui_left, "name", "Name"); | |
477 | ui_out_table_header (uiout, 11, ui_left, "initial", "Initial"); | |
478 | ui_out_table_header (uiout, 11, ui_left, "current", "Current"); | |
479 | ||
480 | ui_out_table_body (uiout); | |
f61e138d SS |
481 | |
482 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
483 | { | |
40e1c229 VP |
484 | struct cleanup *back_to2; |
485 | char *c; | |
486 | char *name; | |
487 | ||
488 | back_to2 = make_cleanup_ui_out_tuple_begin_end (uiout, "variable"); | |
489 | ||
c4f7c687 | 490 | name = concat ("$", tsv->name, (char *) NULL); |
40e1c229 VP |
491 | make_cleanup (xfree, name); |
492 | ui_out_field_string (uiout, "name", name); | |
493 | ui_out_field_string (uiout, "initial", plongest (tsv->initial_value)); | |
494 | ||
f61e138d | 495 | if (tsv->value_known) |
40e1c229 VP |
496 | c = plongest (tsv->value); |
497 | else if (ui_out_is_mi_like_p (uiout)) | |
498 | /* For MI, we prefer not to use magic string constants, but rather | |
499 | omit the field completely. The difference between unknown and | |
500 | undefined does not seem important enough to represent. */ | |
501 | c = NULL; | |
00bf0b85 | 502 | else if (current_trace_status ()->running || traceframe_number >= 0) |
f61e138d | 503 | /* The value is/was defined, but we don't have it. */ |
40e1c229 | 504 | c = "<unknown>"; |
f61e138d SS |
505 | else |
506 | /* It is not meaningful to ask about the value. */ | |
40e1c229 VP |
507 | c = "<undefined>"; |
508 | if (c) | |
509 | ui_out_field_string (uiout, "current", c); | |
510 | ui_out_text (uiout, "\n"); | |
511 | ||
512 | do_cleanups (back_to2); | |
f61e138d | 513 | } |
40e1c229 VP |
514 | |
515 | do_cleanups (back_to); | |
516 | } | |
517 | ||
518 | /* List all the trace state variables. */ | |
519 | ||
520 | static void | |
521 | tvariables_info (char *args, int from_tty) | |
522 | { | |
523 | tvariables_info_1 (); | |
f61e138d SS |
524 | } |
525 | ||
8bf6485c SS |
526 | /* Stash definitions of tsvs into the given file. */ |
527 | ||
528 | void | |
529 | save_trace_state_variables (struct ui_file *fp) | |
530 | { | |
531 | struct trace_state_variable *tsv; | |
532 | int ix; | |
533 | ||
534 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
535 | { | |
536 | fprintf_unfiltered (fp, "tvariable $%s", tsv->name); | |
537 | if (tsv->initial_value) | |
538 | fprintf_unfiltered (fp, " = %s", plongest (tsv->initial_value)); | |
539 | fprintf_unfiltered (fp, "\n"); | |
540 | } | |
541 | } | |
542 | ||
c906108c SS |
543 | /* ACTIONS functions: */ |
544 | ||
c906108c | 545 | /* The three functions: |
c5aa993b JM |
546 | collect_pseudocommand, |
547 | while_stepping_pseudocommand, and | |
548 | end_actions_pseudocommand | |
c906108c SS |
549 | are placeholders for "commands" that are actually ONLY to be used |
550 | within a tracepoint action list. If the actual function is ever called, | |
551 | it means that somebody issued the "command" at the top level, | |
552 | which is always an error. */ | |
553 | ||
1042e4c0 | 554 | void |
fba45db2 | 555 | end_actions_pseudocommand (char *args, int from_tty) |
c906108c | 556 | { |
8a3fe4f8 | 557 | error (_("This command cannot be used at the top level.")); |
c906108c SS |
558 | } |
559 | ||
1042e4c0 | 560 | void |
fba45db2 | 561 | while_stepping_pseudocommand (char *args, int from_tty) |
c906108c | 562 | { |
8a3fe4f8 | 563 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
564 | } |
565 | ||
566 | static void | |
fba45db2 | 567 | collect_pseudocommand (char *args, int from_tty) |
c906108c | 568 | { |
8a3fe4f8 | 569 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
570 | } |
571 | ||
6da95a67 SS |
572 | static void |
573 | teval_pseudocommand (char *args, int from_tty) | |
574 | { | |
575 | error (_("This command can only be used in a tracepoint actions list.")); | |
576 | } | |
577 | ||
c906108c SS |
578 | /* Enter a list of actions for a tracepoint. */ |
579 | static void | |
fba45db2 | 580 | trace_actions_command (char *args, int from_tty) |
c906108c | 581 | { |
1042e4c0 | 582 | struct breakpoint *t; |
a7bdde9e | 583 | struct command_line *l; |
c906108c | 584 | |
c2d11a7d | 585 | t = get_tracepoint_by_number (&args, 0, 1); |
7a292a7a | 586 | if (t) |
c906108c | 587 | { |
a7bdde9e VP |
588 | char *tmpbuf = |
589 | xstrprintf ("Enter actions for tracepoint %d, one per line.", | |
590 | t->number); | |
591 | struct cleanup *cleanups = make_cleanup (xfree, tmpbuf); | |
592 | ||
3e43a32a MS |
593 | l = read_command_lines (tmpbuf, from_tty, 1, |
594 | check_tracepoint_command, t); | |
a7bdde9e VP |
595 | do_cleanups (cleanups); |
596 | breakpoint_set_commands (t, l); | |
c906108c | 597 | } |
5c44784c | 598 | /* else just return */ |
c906108c SS |
599 | } |
600 | ||
fff87407 SS |
601 | /* Report the results of checking the agent expression, as errors or |
602 | internal errors. */ | |
603 | ||
604 | static void | |
35c9c7ba | 605 | report_agent_reqs_errors (struct agent_expr *aexpr) |
fff87407 SS |
606 | { |
607 | /* All of the "flaws" are serious bytecode generation issues that | |
608 | should never occur. */ | |
35c9c7ba | 609 | if (aexpr->flaw != agent_flaw_none) |
fff87407 SS |
610 | internal_error (__FILE__, __LINE__, _("expression is malformed")); |
611 | ||
612 | /* If analysis shows a stack underflow, GDB must have done something | |
613 | badly wrong in its bytecode generation. */ | |
35c9c7ba | 614 | if (aexpr->min_height < 0) |
fff87407 SS |
615 | internal_error (__FILE__, __LINE__, |
616 | _("expression has min height < 0")); | |
617 | ||
618 | /* Issue this error if the stack is predicted to get too deep. The | |
619 | limit is rather arbitrary; a better scheme might be for the | |
620 | target to report how much stack it will have available. The | |
621 | depth roughly corresponds to parenthesization, so a limit of 20 | |
622 | amounts to 20 levels of expression nesting, which is actually | |
623 | a pretty big hairy expression. */ | |
35c9c7ba | 624 | if (aexpr->max_height > 20) |
fff87407 SS |
625 | error (_("Expression is too complicated.")); |
626 | } | |
627 | ||
c906108c | 628 | /* worker function */ |
fff87407 | 629 | void |
1042e4c0 | 630 | validate_actionline (char **line, struct breakpoint *t) |
c906108c SS |
631 | { |
632 | struct cmd_list_element *c; | |
633 | struct expression *exp = NULL; | |
c906108c | 634 | struct cleanup *old_chain = NULL; |
9355b391 SS |
635 | char *p, *tmp_p; |
636 | struct bp_location *loc; | |
fff87407 | 637 | struct agent_expr *aexpr; |
c906108c | 638 | |
c378eb4e | 639 | /* If EOF is typed, *line is NULL. */ |
15255275 | 640 | if (*line == NULL) |
fff87407 | 641 | return; |
15255275 | 642 | |
104c1213 | 643 | for (p = *line; isspace ((int) *p);) |
c906108c SS |
644 | p++; |
645 | ||
d183932d MS |
646 | /* Symbol lookup etc. */ |
647 | if (*p == '\0') /* empty line: just prompt for another line. */ | |
fff87407 | 648 | return; |
c906108c | 649 | |
c5aa993b | 650 | if (*p == '#') /* comment line */ |
fff87407 | 651 | return; |
c906108c SS |
652 | |
653 | c = lookup_cmd (&p, cmdlist, "", -1, 1); | |
654 | if (c == 0) | |
fff87407 | 655 | error (_("`%s' is not a tracepoint action, or is ambiguous."), p); |
c5aa993b | 656 | |
bbaca940 | 657 | if (cmd_cfunc_eq (c, collect_pseudocommand)) |
c906108c | 658 | { |
c5aa993b | 659 | do |
c378eb4e MS |
660 | { /* Repeat over a comma-separated list. */ |
661 | QUIT; /* Allow user to bail out with ^C. */ | |
104c1213 | 662 | while (isspace ((int) *p)) |
c5aa993b | 663 | p++; |
c906108c | 664 | |
c378eb4e | 665 | if (*p == '$') /* Look for special pseudo-symbols. */ |
c5aa993b | 666 | { |
0fb4aa4b PA |
667 | if (0 == strncasecmp ("reg", p + 1, 3) |
668 | || 0 == strncasecmp ("arg", p + 1, 3) | |
669 | || 0 == strncasecmp ("loc", p + 1, 3) | |
670 | || 0 == strncasecmp ("_sdata", p + 1, 6)) | |
c5aa993b JM |
671 | { |
672 | p = strchr (p, ','); | |
673 | continue; | |
674 | } | |
d183932d | 675 | /* else fall thru, treat p as an expression and parse it! */ |
c5aa993b | 676 | } |
9355b391 SS |
677 | tmp_p = p; |
678 | for (loc = t->loc; loc; loc = loc->next) | |
c5aa993b | 679 | { |
9355b391 SS |
680 | p = tmp_p; |
681 | exp = parse_exp_1 (&p, block_for_pc (loc->address), 1); | |
682 | old_chain = make_cleanup (free_current_contents, &exp); | |
683 | ||
684 | if (exp->elts[0].opcode == OP_VAR_VALUE) | |
c5aa993b | 685 | { |
9355b391 SS |
686 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) |
687 | { | |
3e43a32a MS |
688 | error (_("constant `%s' (value %ld) " |
689 | "will not be collected."), | |
fff87407 SS |
690 | SYMBOL_PRINT_NAME (exp->elts[2].symbol), |
691 | SYMBOL_VALUE (exp->elts[2].symbol)); | |
9355b391 | 692 | } |
3e43a32a MS |
693 | else if (SYMBOL_CLASS (exp->elts[2].symbol) |
694 | == LOC_OPTIMIZED_OUT) | |
9355b391 | 695 | { |
3e43a32a MS |
696 | error (_("`%s' is optimized away " |
697 | "and cannot be collected."), | |
fff87407 | 698 | SYMBOL_PRINT_NAME (exp->elts[2].symbol)); |
9355b391 | 699 | } |
c5aa993b | 700 | } |
c906108c | 701 | |
9355b391 SS |
702 | /* We have something to collect, make sure that the expr to |
703 | bytecode translator can handle it and that it's not too | |
704 | long. */ | |
705 | aexpr = gen_trace_for_expr (loc->address, exp); | |
706 | make_cleanup_free_agent_expr (aexpr); | |
c906108c | 707 | |
9355b391 | 708 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
fff87407 | 709 | error (_("Expression is too complicated.")); |
c906108c | 710 | |
35c9c7ba | 711 | ax_reqs (aexpr); |
c906108c | 712 | |
35c9c7ba | 713 | report_agent_reqs_errors (aexpr); |
c906108c | 714 | |
9355b391 SS |
715 | do_cleanups (old_chain); |
716 | } | |
c5aa993b JM |
717 | } |
718 | while (p && *p++ == ','); | |
c906108c | 719 | } |
fff87407 | 720 | |
6da95a67 SS |
721 | else if (cmd_cfunc_eq (c, teval_pseudocommand)) |
722 | { | |
6da95a67 | 723 | do |
c378eb4e MS |
724 | { /* Repeat over a comma-separated list. */ |
725 | QUIT; /* Allow user to bail out with ^C. */ | |
6da95a67 SS |
726 | while (isspace ((int) *p)) |
727 | p++; | |
728 | ||
9355b391 SS |
729 | tmp_p = p; |
730 | for (loc = t->loc; loc; loc = loc->next) | |
731 | { | |
732 | p = tmp_p; | |
733 | /* Only expressions are allowed for this action. */ | |
734 | exp = parse_exp_1 (&p, block_for_pc (loc->address), 1); | |
735 | old_chain = make_cleanup (free_current_contents, &exp); | |
6da95a67 | 736 | |
9355b391 SS |
737 | /* We have something to evaluate, make sure that the expr to |
738 | bytecode translator can handle it and that it's not too | |
739 | long. */ | |
740 | aexpr = gen_eval_for_expr (loc->address, exp); | |
741 | make_cleanup_free_agent_expr (aexpr); | |
6da95a67 | 742 | |
9355b391 | 743 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
fff87407 SS |
744 | error (_("Expression is too complicated.")); |
745 | ||
35c9c7ba SS |
746 | ax_reqs (aexpr); |
747 | report_agent_reqs_errors (aexpr); | |
6da95a67 | 748 | |
9355b391 SS |
749 | do_cleanups (old_chain); |
750 | } | |
6da95a67 SS |
751 | } |
752 | while (p && *p++ == ','); | |
6da95a67 | 753 | } |
fff87407 | 754 | |
bbaca940 | 755 | else if (cmd_cfunc_eq (c, while_stepping_pseudocommand)) |
c906108c | 756 | { |
c378eb4e | 757 | char *steparg; /* In case warning is necessary. */ |
c906108c | 758 | |
104c1213 | 759 | while (isspace ((int) *p)) |
c906108c SS |
760 | p++; |
761 | steparg = p; | |
762 | ||
fff87407 SS |
763 | if (*p == '\0' || (t->step_count = strtol (p, &p, 0)) == 0) |
764 | error (_("while-stepping step count `%s' is malformed."), *line); | |
c906108c | 765 | } |
fff87407 | 766 | |
d0e92d82 HZ |
767 | else if (cmd_cfunc_eq (c, printf_command)) |
768 | { | |
769 | char fbuf[101]; | |
770 | ||
771 | for (loc = t->loc; loc; loc = loc->next) | |
772 | { | |
773 | int nargs; | |
774 | aexpr = new_agent_expr (loc->gdbarch, loc->address); | |
775 | old_chain = make_cleanup_free_agent_expr (aexpr); | |
776 | string_printf (p, NULL, gen_printf_expr_callback, | |
777 | loc, aexpr); | |
778 | ax_simple (aexpr, aop_end); | |
779 | /* The agent expr include expr for arguments, format string, 1 byte | |
780 | for aop_printf, 1 byte for the number of arguments, 1 byte for | |
781 | size of format string, 1 byte for blank after format string | |
782 | and 1 byte for aop_end. */ | |
783 | if (aexpr->len > MAX_AGENT_EXPR_LEN) | |
784 | error (_("Expression is too complicated.")); | |
785 | do_cleanups (old_chain); | |
786 | } | |
787 | } | |
788 | ||
bbaca940 | 789 | else if (cmd_cfunc_eq (c, end_actions_pseudocommand)) |
fff87407 SS |
790 | ; |
791 | ||
c906108c | 792 | else |
fff87407 | 793 | error (_("`%s' is not a supported tracepoint action."), *line); |
74b7792f AC |
794 | } |
795 | ||
f50e79a4 JB |
796 | enum { |
797 | memrange_absolute = -1 | |
798 | }; | |
799 | ||
c5aa993b JM |
800 | struct memrange |
801 | { | |
f50e79a4 | 802 | int type; /* memrange_absolute for absolute memory range, |
c378eb4e | 803 | else basereg number. */ |
c906108c SS |
804 | bfd_signed_vma start; |
805 | bfd_signed_vma end; | |
806 | }; | |
807 | ||
c5aa993b JM |
808 | struct collection_list |
809 | { | |
549678da | 810 | unsigned char regs_mask[32]; /* room for up to 256 regs */ |
c5aa993b JM |
811 | long listsize; |
812 | long next_memrange; | |
813 | struct memrange *list; | |
814 | long aexpr_listsize; /* size of array pointed to by expr_list elt */ | |
815 | long next_aexpr_elt; | |
816 | struct agent_expr **aexpr_list; | |
817 | ||
0fb4aa4b PA |
818 | /* True is the user requested a collection of "$_sdata", "static |
819 | tracepoint data". */ | |
820 | int strace_data; | |
c5aa993b JM |
821 | } |
822 | tracepoint_list, stepping_list; | |
c906108c SS |
823 | |
824 | /* MEMRANGE functions: */ | |
825 | ||
a14ed312 | 826 | static int memrange_cmp (const void *, const void *); |
c906108c | 827 | |
c378eb4e | 828 | /* Compare memranges for qsort. */ |
c906108c | 829 | static int |
fba45db2 | 830 | memrange_cmp (const void *va, const void *vb) |
c906108c SS |
831 | { |
832 | const struct memrange *a = va, *b = vb; | |
833 | ||
834 | if (a->type < b->type) | |
835 | return -1; | |
836 | if (a->type > b->type) | |
c5aa993b | 837 | return 1; |
f50e79a4 | 838 | if (a->type == memrange_absolute) |
c906108c | 839 | { |
c5aa993b JM |
840 | if ((bfd_vma) a->start < (bfd_vma) b->start) |
841 | return -1; | |
842 | if ((bfd_vma) a->start > (bfd_vma) b->start) | |
843 | return 1; | |
c906108c SS |
844 | } |
845 | else | |
846 | { | |
c5aa993b | 847 | if (a->start < b->start) |
c906108c | 848 | return -1; |
c5aa993b JM |
849 | if (a->start > b->start) |
850 | return 1; | |
c906108c SS |
851 | } |
852 | return 0; | |
853 | } | |
854 | ||
d183932d | 855 | /* Sort the memrange list using qsort, and merge adjacent memranges. */ |
c906108c | 856 | static void |
fba45db2 | 857 | memrange_sortmerge (struct collection_list *memranges) |
c906108c SS |
858 | { |
859 | int a, b; | |
860 | ||
c5aa993b | 861 | qsort (memranges->list, memranges->next_memrange, |
c906108c SS |
862 | sizeof (struct memrange), memrange_cmp); |
863 | if (memranges->next_memrange > 0) | |
864 | { | |
865 | for (a = 0, b = 1; b < memranges->next_memrange; b++) | |
866 | { | |
1b28d0b3 PA |
867 | /* If memrange b overlaps or is adjacent to memrange a, |
868 | merge them. */ | |
869 | if (memranges->list[a].type == memranges->list[b].type | |
870 | && memranges->list[b].start <= memranges->list[a].end) | |
c906108c | 871 | { |
08807d5a PA |
872 | if (memranges->list[b].end > memranges->list[a].end) |
873 | memranges->list[a].end = memranges->list[b].end; | |
c906108c SS |
874 | continue; /* next b, same a */ |
875 | } | |
876 | a++; /* next a */ | |
877 | if (a != b) | |
c5aa993b | 878 | memcpy (&memranges->list[a], &memranges->list[b], |
c906108c SS |
879 | sizeof (struct memrange)); |
880 | } | |
881 | memranges->next_memrange = a + 1; | |
882 | } | |
883 | } | |
884 | ||
d183932d | 885 | /* Add a register to a collection list. */ |
392a587b | 886 | static void |
fba45db2 | 887 | add_register (struct collection_list *collection, unsigned int regno) |
c906108c SS |
888 | { |
889 | if (info_verbose) | |
890 | printf_filtered ("collect register %d\n", regno); | |
27e06d3e | 891 | if (regno >= (8 * sizeof (collection->regs_mask))) |
8a3fe4f8 | 892 | error (_("Internal: register number %d too large for tracepoint"), |
c906108c | 893 | regno); |
c5aa993b | 894 | collection->regs_mask[regno / 8] |= 1 << (regno % 8); |
c906108c SS |
895 | } |
896 | ||
c378eb4e | 897 | /* Add a memrange to a collection list. */ |
c906108c | 898 | static void |
d183932d MS |
899 | add_memrange (struct collection_list *memranges, |
900 | int type, bfd_signed_vma base, | |
fba45db2 | 901 | unsigned long len) |
c906108c SS |
902 | { |
903 | if (info_verbose) | |
104c1213 JM |
904 | { |
905 | printf_filtered ("(%d,", type); | |
906 | printf_vma (base); | |
907 | printf_filtered (",%ld)\n", len); | |
908 | } | |
909 | ||
f50e79a4 | 910 | /* type: memrange_absolute == memory, other n == basereg */ |
c5aa993b | 911 | memranges->list[memranges->next_memrange].type = type; |
d183932d | 912 | /* base: addr if memory, offset if reg relative. */ |
c906108c SS |
913 | memranges->list[memranges->next_memrange].start = base; |
914 | /* len: we actually save end (base + len) for convenience */ | |
c5aa993b | 915 | memranges->list[memranges->next_memrange].end = base + len; |
c906108c SS |
916 | memranges->next_memrange++; |
917 | if (memranges->next_memrange >= memranges->listsize) | |
918 | { | |
919 | memranges->listsize *= 2; | |
c5aa993b | 920 | memranges->list = xrealloc (memranges->list, |
c906108c SS |
921 | memranges->listsize); |
922 | } | |
923 | ||
3e43a32a | 924 | if (type != memrange_absolute) /* Better collect the base register! */ |
c906108c SS |
925 | add_register (memranges, type); |
926 | } | |
927 | ||
d183932d | 928 | /* Add a symbol to a collection list. */ |
c906108c | 929 | static void |
d183932d MS |
930 | collect_symbol (struct collection_list *collect, |
931 | struct symbol *sym, | |
a6d9a66e | 932 | struct gdbarch *gdbarch, |
0936ad1d SS |
933 | long frame_regno, long frame_offset, |
934 | CORE_ADDR scope) | |
c906108c | 935 | { |
c5aa993b | 936 | unsigned long len; |
104c1213 | 937 | unsigned int reg; |
c906108c | 938 | bfd_signed_vma offset; |
400c6af0 | 939 | int treat_as_expr = 0; |
c906108c | 940 | |
c5aa993b JM |
941 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
942 | switch (SYMBOL_CLASS (sym)) | |
943 | { | |
944 | default: | |
945 | printf_filtered ("%s: don't know symbol class %d\n", | |
3567439c | 946 | SYMBOL_PRINT_NAME (sym), |
d183932d | 947 | SYMBOL_CLASS (sym)); |
c5aa993b JM |
948 | break; |
949 | case LOC_CONST: | |
104c1213 | 950 | printf_filtered ("constant %s (value %ld) will not be collected.\n", |
3567439c | 951 | SYMBOL_PRINT_NAME (sym), SYMBOL_VALUE (sym)); |
c5aa993b JM |
952 | break; |
953 | case LOC_STATIC: | |
954 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
955 | if (info_verbose) | |
104c1213 JM |
956 | { |
957 | char tmp[40]; | |
958 | ||
959 | sprintf_vma (tmp, offset); | |
960 | printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", | |
3567439c | 961 | SYMBOL_PRINT_NAME (sym), len, |
d183932d | 962 | tmp /* address */); |
104c1213 | 963 | } |
400c6af0 SS |
964 | /* A struct may be a C++ class with static fields, go to general |
965 | expression handling. */ | |
966 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT) | |
967 | treat_as_expr = 1; | |
968 | else | |
969 | add_memrange (collect, memrange_absolute, offset, len); | |
c5aa993b JM |
970 | break; |
971 | case LOC_REGISTER: | |
a6d9a66e | 972 | reg = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); |
c5aa993b | 973 | if (info_verbose) |
d183932d | 974 | printf_filtered ("LOC_REG[parm] %s: ", |
3567439c | 975 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 976 | add_register (collect, reg); |
d183932d MS |
977 | /* Check for doubles stored in two registers. */ |
978 | /* FIXME: how about larger types stored in 3 or more regs? */ | |
c5aa993b | 979 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT && |
a6d9a66e | 980 | len > register_size (gdbarch, reg)) |
c5aa993b JM |
981 | add_register (collect, reg + 1); |
982 | break; | |
983 | case LOC_REF_ARG: | |
984 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); | |
985 | printf_filtered (" (will not collect %s)\n", | |
3567439c | 986 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
987 | break; |
988 | case LOC_ARG: | |
989 | reg = frame_regno; | |
990 | offset = frame_offset + SYMBOL_VALUE (sym); | |
991 | if (info_verbose) | |
992 | { | |
104c1213 | 993 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 994 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
995 | printf_vma (offset); |
996 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
997 | } |
998 | add_memrange (collect, reg, offset, len); | |
999 | break; | |
1000 | case LOC_REGPARM_ADDR: | |
1001 | reg = SYMBOL_VALUE (sym); | |
1002 | offset = 0; | |
1003 | if (info_verbose) | |
1004 | { | |
104c1213 | 1005 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ", |
3567439c | 1006 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
1007 | printf_vma (offset); |
1008 | printf_filtered (" from reg %d\n", reg); | |
c5aa993b JM |
1009 | } |
1010 | add_memrange (collect, reg, offset, len); | |
1011 | break; | |
1012 | case LOC_LOCAL: | |
c5aa993b JM |
1013 | reg = frame_regno; |
1014 | offset = frame_offset + SYMBOL_VALUE (sym); | |
1015 | if (info_verbose) | |
1016 | { | |
104c1213 | 1017 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 1018 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
1019 | printf_vma (offset); |
1020 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
1021 | } |
1022 | add_memrange (collect, reg, offset, len); | |
1023 | break; | |
a0405854 | 1024 | |
c5aa993b | 1025 | case LOC_UNRESOLVED: |
a0405854 | 1026 | treat_as_expr = 1; |
c5aa993b | 1027 | break; |
a0405854 | 1028 | |
c5aa993b | 1029 | case LOC_OPTIMIZED_OUT: |
8e1a459b | 1030 | printf_filtered ("%s has been optimized out of existence.\n", |
3567439c | 1031 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 1032 | break; |
0936ad1d SS |
1033 | |
1034 | case LOC_COMPUTED: | |
400c6af0 | 1035 | treat_as_expr = 1; |
0936ad1d | 1036 | break; |
c5aa993b | 1037 | } |
400c6af0 SS |
1038 | |
1039 | /* Expressions are the most general case. */ | |
1040 | if (treat_as_expr) | |
1041 | { | |
1042 | struct agent_expr *aexpr; | |
1043 | struct cleanup *old_chain1 = NULL; | |
400c6af0 SS |
1044 | |
1045 | aexpr = gen_trace_for_var (scope, gdbarch, sym); | |
1046 | ||
1047 | /* It can happen that the symbol is recorded as a computed | |
1048 | location, but it's been optimized away and doesn't actually | |
1049 | have a location expression. */ | |
1050 | if (!aexpr) | |
1051 | { | |
1052 | printf_filtered ("%s has been optimized out of existence.\n", | |
1053 | SYMBOL_PRINT_NAME (sym)); | |
1054 | return; | |
1055 | } | |
1056 | ||
1057 | old_chain1 = make_cleanup_free_agent_expr (aexpr); | |
1058 | ||
35c9c7ba | 1059 | ax_reqs (aexpr); |
fff87407 | 1060 | |
35c9c7ba | 1061 | report_agent_reqs_errors (aexpr); |
400c6af0 SS |
1062 | |
1063 | discard_cleanups (old_chain1); | |
1064 | add_aexpr (collect, aexpr); | |
1065 | ||
c378eb4e | 1066 | /* Take care of the registers. */ |
35c9c7ba | 1067 | if (aexpr->reg_mask_len > 0) |
400c6af0 SS |
1068 | { |
1069 | int ndx1, ndx2; | |
1070 | ||
35c9c7ba | 1071 | for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++) |
400c6af0 | 1072 | { |
c378eb4e | 1073 | QUIT; /* Allow user to bail out with ^C. */ |
35c9c7ba | 1074 | if (aexpr->reg_mask[ndx1] != 0) |
400c6af0 | 1075 | { |
c378eb4e | 1076 | /* Assume chars have 8 bits. */ |
400c6af0 | 1077 | for (ndx2 = 0; ndx2 < 8; ndx2++) |
35c9c7ba | 1078 | if (aexpr->reg_mask[ndx1] & (1 << ndx2)) |
c378eb4e | 1079 | /* It's used -- record it. */ |
400c6af0 SS |
1080 | add_register (collect, ndx1 * 8 + ndx2); |
1081 | } | |
1082 | } | |
1083 | } | |
1084 | } | |
c906108c SS |
1085 | } |
1086 | ||
2c58c0a9 PA |
1087 | /* Data to be passed around in the calls to the locals and args |
1088 | iterators. */ | |
1089 | ||
1090 | struct add_local_symbols_data | |
1091 | { | |
1092 | struct collection_list *collect; | |
1093 | struct gdbarch *gdbarch; | |
1094 | CORE_ADDR pc; | |
1095 | long frame_regno; | |
1096 | long frame_offset; | |
1097 | int count; | |
1098 | }; | |
1099 | ||
c378eb4e | 1100 | /* The callback for the locals and args iterators. */ |
2c58c0a9 PA |
1101 | |
1102 | static void | |
1103 | do_collect_symbol (const char *print_name, | |
1104 | struct symbol *sym, | |
1105 | void *cb_data) | |
1106 | { | |
1107 | struct add_local_symbols_data *p = cb_data; | |
1108 | ||
1109 | collect_symbol (p->collect, sym, p->gdbarch, p->frame_regno, | |
1110 | p->frame_offset, p->pc); | |
1111 | p->count++; | |
1112 | } | |
1113 | ||
c378eb4e | 1114 | /* Add all locals (or args) symbols to collection list. */ |
c906108c | 1115 | static void |
a6d9a66e UW |
1116 | add_local_symbols (struct collection_list *collect, |
1117 | struct gdbarch *gdbarch, CORE_ADDR pc, | |
fba45db2 | 1118 | long frame_regno, long frame_offset, int type) |
c906108c | 1119 | { |
c5aa993b | 1120 | struct block *block; |
2c58c0a9 PA |
1121 | struct add_local_symbols_data cb_data; |
1122 | ||
1123 | cb_data.collect = collect; | |
1124 | cb_data.gdbarch = gdbarch; | |
1125 | cb_data.pc = pc; | |
1126 | cb_data.frame_regno = frame_regno; | |
1127 | cb_data.frame_offset = frame_offset; | |
1128 | cb_data.count = 0; | |
c906108c | 1129 | |
2c58c0a9 | 1130 | if (type == 'L') |
c906108c | 1131 | { |
2c58c0a9 PA |
1132 | block = block_for_pc (pc); |
1133 | if (block == NULL) | |
c906108c | 1134 | { |
2c58c0a9 PA |
1135 | warning (_("Can't collect locals; " |
1136 | "no symbol table info available.\n")); | |
1137 | return; | |
c906108c | 1138 | } |
2c58c0a9 PA |
1139 | |
1140 | iterate_over_block_local_vars (block, do_collect_symbol, &cb_data); | |
1141 | if (cb_data.count == 0) | |
1142 | warning (_("No locals found in scope.")); | |
1143 | } | |
1144 | else | |
1145 | { | |
1146 | pc = get_pc_function_start (pc); | |
1147 | block = block_for_pc (pc); | |
1148 | if (block == NULL) | |
1149 | { | |
1150 | warning (_("Can't collect args; no symbol table info available.\n")); | |
1151 | return; | |
1152 | } | |
1153 | ||
1154 | iterate_over_block_arg_vars (block, do_collect_symbol, &cb_data); | |
1155 | if (cb_data.count == 0) | |
1156 | warning (_("No args found in scope.")); | |
c906108c | 1157 | } |
c906108c SS |
1158 | } |
1159 | ||
0fb4aa4b PA |
1160 | static void |
1161 | add_static_trace_data (struct collection_list *collection) | |
1162 | { | |
1163 | if (info_verbose) | |
1164 | printf_filtered ("collect static trace data\n"); | |
1165 | collection->strace_data = 1; | |
1166 | } | |
1167 | ||
c906108c SS |
1168 | /* worker function */ |
1169 | static void | |
fba45db2 | 1170 | clear_collection_list (struct collection_list *list) |
c906108c SS |
1171 | { |
1172 | int ndx; | |
1173 | ||
1174 | list->next_memrange = 0; | |
1175 | for (ndx = 0; ndx < list->next_aexpr_elt; ndx++) | |
1176 | { | |
c5aa993b | 1177 | free_agent_expr (list->aexpr_list[ndx]); |
c906108c SS |
1178 | list->aexpr_list[ndx] = NULL; |
1179 | } | |
1180 | list->next_aexpr_elt = 0; | |
1181 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); | |
0fb4aa4b | 1182 | list->strace_data = 0; |
c906108c SS |
1183 | } |
1184 | ||
c378eb4e | 1185 | /* Reduce a collection list to string form (for gdb protocol). */ |
c906108c | 1186 | static char ** |
fba45db2 | 1187 | stringify_collection_list (struct collection_list *list, char *string) |
c906108c SS |
1188 | { |
1189 | char temp_buf[2048]; | |
104c1213 | 1190 | char tmp2[40]; |
c906108c SS |
1191 | int count; |
1192 | int ndx = 0; | |
1193 | char *(*str_list)[]; | |
1194 | char *end; | |
c5aa993b | 1195 | long i; |
c906108c | 1196 | |
0fb4aa4b | 1197 | count = 1 + 1 + list->next_memrange + list->next_aexpr_elt + 1; |
c5aa993b | 1198 | str_list = (char *(*)[]) xmalloc (count * sizeof (char *)); |
c906108c | 1199 | |
0fb4aa4b PA |
1200 | if (list->strace_data) |
1201 | { | |
1202 | if (info_verbose) | |
1203 | printf_filtered ("\nCollecting static trace data\n"); | |
1204 | end = temp_buf; | |
1205 | *end++ = 'L'; | |
1206 | (*str_list)[ndx] = savestring (temp_buf, end - temp_buf); | |
1207 | ndx++; | |
1208 | } | |
1209 | ||
c906108c | 1210 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) |
c378eb4e | 1211 | if (list->regs_mask[i] != 0) /* Skip leading zeroes in regs_mask. */ |
c906108c | 1212 | break; |
c378eb4e | 1213 | if (list->regs_mask[i] != 0) /* Prepare to send regs_mask to the stub. */ |
c906108c SS |
1214 | { |
1215 | if (info_verbose) | |
1216 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
1217 | end = temp_buf; | |
c5aa993b | 1218 | *end++ = 'R'; |
c906108c SS |
1219 | for (; i >= 0; i--) |
1220 | { | |
c378eb4e | 1221 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c SS |
1222 | if (info_verbose) |
1223 | printf_filtered ("%02X", list->regs_mask[i]); | |
c5aa993b | 1224 | sprintf (end, "%02X", list->regs_mask[i]); |
c906108c SS |
1225 | end += 2; |
1226 | } | |
1b36a34b | 1227 | (*str_list)[ndx] = xstrdup (temp_buf); |
c906108c SS |
1228 | ndx++; |
1229 | } | |
1230 | if (info_verbose) | |
1231 | printf_filtered ("\n"); | |
1232 | if (list->next_memrange > 0 && info_verbose) | |
1233 | printf_filtered ("Collecting memranges: \n"); | |
1234 | for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++) | |
1235 | { | |
c378eb4e | 1236 | QUIT; /* Allow user to bail out with ^C. */ |
104c1213 | 1237 | sprintf_vma (tmp2, list->list[i].start); |
c906108c | 1238 | if (info_verbose) |
104c1213 JM |
1239 | { |
1240 | printf_filtered ("(%d, %s, %ld)\n", | |
1241 | list->list[i].type, | |
1242 | tmp2, | |
1243 | (long) (list->list[i].end - list->list[i].start)); | |
1244 | } | |
c906108c SS |
1245 | if (count + 27 > MAX_AGENT_EXPR_LEN) |
1246 | { | |
c5aa993b | 1247 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1248 | ndx++; |
1249 | count = 0; | |
1250 | end = temp_buf; | |
1251 | } | |
104c1213 | 1252 | |
d1948716 JB |
1253 | { |
1254 | bfd_signed_vma length = list->list[i].end - list->list[i].start; | |
1255 | ||
1256 | /* The "%X" conversion specifier expects an unsigned argument, | |
f50e79a4 JB |
1257 | so passing -1 (memrange_absolute) to it directly gives you |
1258 | "FFFFFFFF" (or more, depending on sizeof (unsigned)). | |
1259 | Special-case it. */ | |
1260 | if (list->list[i].type == memrange_absolute) | |
d1948716 JB |
1261 | sprintf (end, "M-1,%s,%lX", tmp2, (long) length); |
1262 | else | |
1263 | sprintf (end, "M%X,%s,%lX", list->list[i].type, tmp2, (long) length); | |
1264 | } | |
104c1213 | 1265 | |
c906108c | 1266 | count += strlen (end); |
3ffbc0a5 | 1267 | end = temp_buf + count; |
c906108c SS |
1268 | } |
1269 | ||
1270 | for (i = 0; i < list->next_aexpr_elt; i++) | |
1271 | { | |
c378eb4e | 1272 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c SS |
1273 | if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN) |
1274 | { | |
c5aa993b | 1275 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1276 | ndx++; |
1277 | count = 0; | |
1278 | end = temp_buf; | |
1279 | } | |
1280 | sprintf (end, "X%08X,", list->aexpr_list[i]->len); | |
1281 | end += 10; /* 'X' + 8 hex digits + ',' */ | |
1282 | count += 10; | |
1283 | ||
d183932d MS |
1284 | end = mem2hex (list->aexpr_list[i]->buf, |
1285 | end, list->aexpr_list[i]->len); | |
c906108c SS |
1286 | count += 2 * list->aexpr_list[i]->len; |
1287 | } | |
1288 | ||
1289 | if (count != 0) | |
1290 | { | |
c5aa993b | 1291 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1292 | ndx++; |
1293 | count = 0; | |
1294 | end = temp_buf; | |
1295 | } | |
1296 | (*str_list)[ndx] = NULL; | |
1297 | ||
1298 | if (ndx == 0) | |
27e06d3e | 1299 | { |
6c761d9c | 1300 | xfree (str_list); |
27e06d3e MS |
1301 | return NULL; |
1302 | } | |
c906108c SS |
1303 | else |
1304 | return *str_list; | |
1305 | } | |
1306 | ||
a7bdde9e VP |
1307 | |
1308 | static void | |
1309 | encode_actions_1 (struct command_line *action, | |
1310 | struct breakpoint *t, | |
1311 | struct bp_location *tloc, | |
1312 | int frame_reg, | |
1313 | LONGEST frame_offset, | |
1314 | struct collection_list *collect, | |
1315 | struct collection_list *stepping_list) | |
c906108c | 1316 | { |
c5aa993b JM |
1317 | char *action_exp; |
1318 | struct expression *exp = NULL; | |
104c1213 | 1319 | int i; |
f976f6d4 | 1320 | struct value *tempval; |
c906108c SS |
1321 | struct cmd_list_element *cmd; |
1322 | struct agent_expr *aexpr; | |
236f1d4d SS |
1323 | |
1324 | for (; action; action = action->next) | |
c906108c | 1325 | { |
c378eb4e | 1326 | QUIT; /* Allow user to bail out with ^C. */ |
a7bdde9e | 1327 | action_exp = action->line; |
104c1213 | 1328 | while (isspace ((int) *action_exp)) |
c906108c SS |
1329 | action_exp++; |
1330 | ||
c906108c SS |
1331 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
1332 | if (cmd == 0) | |
8a3fe4f8 | 1333 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 1334 | |
bbaca940 | 1335 | if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c | 1336 | { |
c5aa993b | 1337 | do |
c378eb4e MS |
1338 | { /* Repeat over a comma-separated list. */ |
1339 | QUIT; /* Allow user to bail out with ^C. */ | |
104c1213 | 1340 | while (isspace ((int) *action_exp)) |
c5aa993b | 1341 | action_exp++; |
c906108c | 1342 | |
c5aa993b JM |
1343 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1344 | { | |
a6d9a66e | 1345 | for (i = 0; i < gdbarch_num_regs (t->gdbarch); i++) |
c5aa993b JM |
1346 | add_register (collect, i); |
1347 | action_exp = strchr (action_exp, ','); /* more? */ | |
1348 | } | |
1349 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1350 | { | |
1351 | add_local_symbols (collect, | |
a6d9a66e | 1352 | t->gdbarch, |
9355b391 | 1353 | tloc->address, |
c5aa993b JM |
1354 | frame_reg, |
1355 | frame_offset, | |
1356 | 'A'); | |
1357 | action_exp = strchr (action_exp, ','); /* more? */ | |
1358 | } | |
1359 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1360 | { | |
1361 | add_local_symbols (collect, | |
a6d9a66e | 1362 | t->gdbarch, |
9355b391 | 1363 | tloc->address, |
c5aa993b JM |
1364 | frame_reg, |
1365 | frame_offset, | |
1366 | 'L'); | |
1367 | action_exp = strchr (action_exp, ','); /* more? */ | |
1368 | } | |
0fb4aa4b PA |
1369 | else if (0 == strncasecmp ("$_sdata", action_exp, 7)) |
1370 | { | |
1371 | add_static_trace_data (collect); | |
1372 | action_exp = strchr (action_exp, ','); /* more? */ | |
1373 | } | |
c5aa993b JM |
1374 | else |
1375 | { | |
1376 | unsigned long addr, len; | |
1377 | struct cleanup *old_chain = NULL; | |
1378 | struct cleanup *old_chain1 = NULL; | |
c5aa993b | 1379 | |
75ac9d7b | 1380 | exp = parse_exp_1 (&action_exp, |
9355b391 | 1381 | block_for_pc (tloc->address), 1); |
74b7792f | 1382 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 1383 | |
c5aa993b JM |
1384 | switch (exp->elts[0].opcode) |
1385 | { | |
1386 | case OP_REGISTER: | |
67f3407f DJ |
1387 | { |
1388 | const char *name = &exp->elts[2].string; | |
1389 | ||
a6d9a66e | 1390 | i = user_reg_map_name_to_regnum (t->gdbarch, |
029a67e4 | 1391 | name, strlen (name)); |
67f3407f DJ |
1392 | if (i == -1) |
1393 | internal_error (__FILE__, __LINE__, | |
1394 | _("Register $%s not available"), | |
1395 | name); | |
1396 | if (info_verbose) | |
1397 | printf_filtered ("OP_REGISTER: "); | |
1398 | add_register (collect, i); | |
1399 | break; | |
1400 | } | |
c5aa993b JM |
1401 | |
1402 | case UNOP_MEMVAL: | |
c378eb4e | 1403 | /* Safe because we know it's a simple expression. */ |
c5aa993b | 1404 | tempval = evaluate_expression (exp); |
42ae5230 | 1405 | addr = value_address (tempval); |
c5aa993b | 1406 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); |
f50e79a4 | 1407 | add_memrange (collect, memrange_absolute, addr, len); |
c5aa993b JM |
1408 | break; |
1409 | ||
1410 | case OP_VAR_VALUE: | |
1411 | collect_symbol (collect, | |
1412 | exp->elts[2].symbol, | |
a6d9a66e | 1413 | t->gdbarch, |
c5aa993b | 1414 | frame_reg, |
0936ad1d | 1415 | frame_offset, |
9355b391 | 1416 | tloc->address); |
c5aa993b JM |
1417 | break; |
1418 | ||
c378eb4e | 1419 | default: /* Full-fledged expression. */ |
9355b391 | 1420 | aexpr = gen_trace_for_expr (tloc->address, exp); |
c5aa993b | 1421 | |
f23d52e0 | 1422 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
c5aa993b | 1423 | |
35c9c7ba | 1424 | ax_reqs (aexpr); |
c5aa993b | 1425 | |
35c9c7ba | 1426 | report_agent_reqs_errors (aexpr); |
c5aa993b JM |
1427 | |
1428 | discard_cleanups (old_chain1); | |
1429 | add_aexpr (collect, aexpr); | |
1430 | ||
c378eb4e | 1431 | /* Take care of the registers. */ |
35c9c7ba | 1432 | if (aexpr->reg_mask_len > 0) |
c906108c | 1433 | { |
c5aa993b JM |
1434 | int ndx1; |
1435 | int ndx2; | |
1436 | ||
35c9c7ba | 1437 | for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++) |
c906108c | 1438 | { |
c378eb4e | 1439 | QUIT; /* Allow user to bail out with ^C. */ |
35c9c7ba | 1440 | if (aexpr->reg_mask[ndx1] != 0) |
c5aa993b | 1441 | { |
c378eb4e | 1442 | /* Assume chars have 8 bits. */ |
c5aa993b | 1443 | for (ndx2 = 0; ndx2 < 8; ndx2++) |
35c9c7ba | 1444 | if (aexpr->reg_mask[ndx1] & (1 << ndx2)) |
c378eb4e | 1445 | /* It's used -- record it. */ |
d183932d MS |
1446 | add_register (collect, |
1447 | ndx1 * 8 + ndx2); | |
c5aa993b | 1448 | } |
c906108c SS |
1449 | } |
1450 | } | |
c5aa993b JM |
1451 | break; |
1452 | } /* switch */ | |
1453 | do_cleanups (old_chain); | |
1454 | } /* do */ | |
1455 | } | |
1456 | while (action_exp && *action_exp++ == ','); | |
1457 | } /* if */ | |
6da95a67 SS |
1458 | else if (cmd_cfunc_eq (cmd, teval_pseudocommand)) |
1459 | { | |
1460 | do | |
c378eb4e MS |
1461 | { /* Repeat over a comma-separated list. */ |
1462 | QUIT; /* Allow user to bail out with ^C. */ | |
6da95a67 SS |
1463 | while (isspace ((int) *action_exp)) |
1464 | action_exp++; | |
1465 | ||
1466 | { | |
6da95a67 SS |
1467 | struct cleanup *old_chain = NULL; |
1468 | struct cleanup *old_chain1 = NULL; | |
6da95a67 SS |
1469 | |
1470 | exp = parse_exp_1 (&action_exp, | |
9355b391 | 1471 | block_for_pc (tloc->address), 1); |
6da95a67 SS |
1472 | old_chain = make_cleanup (free_current_contents, &exp); |
1473 | ||
9355b391 | 1474 | aexpr = gen_eval_for_expr (tloc->address, exp); |
6da95a67 SS |
1475 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
1476 | ||
35c9c7ba SS |
1477 | ax_reqs (aexpr); |
1478 | report_agent_reqs_errors (aexpr); | |
6da95a67 SS |
1479 | |
1480 | discard_cleanups (old_chain1); | |
1481 | /* Even though we're not officially collecting, add | |
1482 | to the collect list anyway. */ | |
1483 | add_aexpr (collect, aexpr); | |
1484 | ||
1485 | do_cleanups (old_chain); | |
1486 | } /* do */ | |
1487 | } | |
1488 | while (action_exp && *action_exp++ == ','); | |
1489 | } /* if */ | |
bbaca940 | 1490 | else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 1491 | { |
a7bdde9e VP |
1492 | /* We check against nested while-stepping when setting |
1493 | breakpoint action, so no way to run into nested | |
1494 | here. */ | |
1495 | gdb_assert (stepping_list); | |
1496 | ||
2a2287c7 MS |
1497 | encode_actions_1 (action->body_list[0], t, tloc, frame_reg, |
1498 | frame_offset, stepping_list, NULL); | |
c906108c | 1499 | } |
d0e92d82 HZ |
1500 | else if (cmd_cfunc_eq (cmd, printf_command)) |
1501 | { | |
1502 | char fbuf[101]; | |
1503 | struct cleanup *old_chain = NULL; | |
1504 | ||
1505 | aexpr = new_agent_expr (tloc->gdbarch, tloc->address); | |
1506 | old_chain = make_cleanup_free_agent_expr (aexpr); | |
1507 | string_printf (action_exp, NULL, gen_printf_expr_callback, | |
1508 | tloc, aexpr); | |
1509 | ax_simple (aexpr, aop_end); | |
1510 | ||
1511 | ax_reqs (aexpr); | |
1512 | report_agent_reqs_errors (aexpr); | |
1513 | discard_cleanups (old_chain); | |
1514 | add_aexpr (collect, aexpr); | |
1515 | } | |
a7bdde9e VP |
1516 | else |
1517 | error (_("Invalid tracepoint command '%s'"), action->line); | |
1518 | } /* for */ | |
1519 | } | |
1520 | ||
1521 | /* Render all actions into gdb protocol. */ | |
1522 | /*static*/ void | |
1523 | encode_actions (struct breakpoint *t, struct bp_location *tloc, | |
1524 | char ***tdp_actions, char ***stepping_actions) | |
1525 | { | |
1526 | static char tdp_buff[2048], step_buff[2048]; | |
1527 | char *default_collect_line = NULL; | |
1528 | struct command_line *actions; | |
1529 | struct command_line *default_collect_action = NULL; | |
1530 | int frame_reg; | |
1531 | LONGEST frame_offset; | |
1532 | struct cleanup *back_to; | |
1533 | ||
1534 | back_to = make_cleanup (null_cleanup, NULL); | |
1535 | ||
1536 | clear_collection_list (&tracepoint_list); | |
1537 | clear_collection_list (&stepping_list); | |
1538 | ||
1539 | *tdp_actions = NULL; | |
1540 | *stepping_actions = NULL; | |
1541 | ||
1542 | gdbarch_virtual_frame_pointer (t->gdbarch, | |
1543 | t->loc->address, &frame_reg, &frame_offset); | |
1544 | ||
5cea2a26 | 1545 | actions = breakpoint_commands (t); |
a7bdde9e VP |
1546 | |
1547 | /* If there are default expressions to collect, make up a collect | |
1548 | action and prepend to the action list to encode. Note that since | |
1549 | validation is per-tracepoint (local var "xyz" might be valid for | |
1550 | one tracepoint and not another, etc), we make up the action on | |
1551 | the fly, and don't cache it. */ | |
1552 | if (*default_collect) | |
1553 | { | |
1554 | char *line; | |
a7bdde9e VP |
1555 | |
1556 | default_collect_line = xstrprintf ("collect %s", default_collect); | |
1557 | make_cleanup (xfree, default_collect_line); | |
1558 | ||
1559 | line = default_collect_line; | |
fff87407 SS |
1560 | validate_actionline (&line, t); |
1561 | ||
1562 | default_collect_action = xmalloc (sizeof (struct command_line)); | |
1563 | make_cleanup (xfree, default_collect_action); | |
5cea2a26 | 1564 | default_collect_action->next = actions; |
fff87407 SS |
1565 | default_collect_action->line = line; |
1566 | actions = default_collect_action; | |
a7bdde9e VP |
1567 | } |
1568 | encode_actions_1 (actions, t, tloc, frame_reg, frame_offset, | |
1569 | &tracepoint_list, &stepping_list); | |
1570 | ||
c5aa993b JM |
1571 | memrange_sortmerge (&tracepoint_list); |
1572 | memrange_sortmerge (&stepping_list); | |
c906108c | 1573 | |
a7bdde9e | 1574 | *tdp_actions = stringify_collection_list (&tracepoint_list, |
d183932d | 1575 | tdp_buff); |
a7bdde9e | 1576 | *stepping_actions = stringify_collection_list (&stepping_list, |
d183932d | 1577 | step_buff); |
236f1d4d | 1578 | |
a7bdde9e | 1579 | do_cleanups (back_to); |
c906108c SS |
1580 | } |
1581 | ||
1582 | static void | |
fba45db2 | 1583 | add_aexpr (struct collection_list *collect, struct agent_expr *aexpr) |
c906108c SS |
1584 | { |
1585 | if (collect->next_aexpr_elt >= collect->aexpr_listsize) | |
1586 | { | |
1587 | collect->aexpr_list = | |
1588 | xrealloc (collect->aexpr_list, | |
5d502164 | 1589 | 2 * collect->aexpr_listsize * sizeof (struct agent_expr *)); |
c906108c SS |
1590 | collect->aexpr_listsize *= 2; |
1591 | } | |
1592 | collect->aexpr_list[collect->next_aexpr_elt] = aexpr; | |
1593 | collect->next_aexpr_elt++; | |
1594 | } | |
1595 | ||
c5aa993b | 1596 | |
f224b49d VP |
1597 | void |
1598 | start_tracing (void) | |
d183932d | 1599 | { |
1042e4c0 SS |
1600 | VEC(breakpoint_p) *tp_vec = NULL; |
1601 | int ix; | |
1602 | struct breakpoint *t; | |
f61e138d | 1603 | struct trace_state_variable *tsv; |
d914c394 | 1604 | int any_enabled = 0, num_to_download = 0; |
35b1e5cc SS |
1605 | |
1606 | tp_vec = all_tracepoints (); | |
76a2b958 | 1607 | |
c378eb4e | 1608 | /* No point in tracing without any tracepoints... */ |
76a2b958 SS |
1609 | if (VEC_length (breakpoint_p, tp_vec) == 0) |
1610 | { | |
1611 | VEC_free (breakpoint_p, tp_vec); | |
1612 | error (_("No tracepoints defined, not starting trace")); | |
1613 | } | |
1614 | ||
1615 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
1616 | { | |
1617 | if (t->enable_state == bp_enabled) | |
d914c394 SS |
1618 | any_enabled = 1; |
1619 | ||
1620 | if ((t->type == bp_fast_tracepoint | |
1621 | ? may_insert_fast_tracepoints | |
1622 | : may_insert_tracepoints)) | |
1623 | ++num_to_download; | |
1624 | else | |
1625 | warning (_("May not insert %stracepoints, skipping tracepoint %d"), | |
1626 | (t->type == bp_fast_tracepoint ? "fast " : ""), t->number); | |
76a2b958 SS |
1627 | } |
1628 | ||
1629 | /* No point in tracing with only disabled tracepoints. */ | |
1630 | if (!any_enabled) | |
1631 | { | |
1632 | VEC_free (breakpoint_p, tp_vec); | |
1633 | error (_("No tracepoints enabled, not starting trace")); | |
1634 | } | |
1635 | ||
d914c394 SS |
1636 | if (num_to_download <= 0) |
1637 | { | |
1638 | VEC_free (breakpoint_p, tp_vec); | |
1639 | error (_("No tracepoints that may be downloaded, not starting trace")); | |
1640 | } | |
1641 | ||
76a2b958 SS |
1642 | target_trace_init (); |
1643 | ||
35b1e5cc | 1644 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) |
7a697b8d | 1645 | { |
d914c394 SS |
1646 | if ((t->type == bp_fast_tracepoint |
1647 | ? !may_insert_fast_tracepoints | |
1648 | : !may_insert_tracepoints)) | |
1649 | continue; | |
1650 | ||
35b1e5cc SS |
1651 | t->number_on_target = 0; |
1652 | target_download_tracepoint (t); | |
1653 | t->number_on_target = t->number; | |
7a697b8d | 1654 | } |
35b1e5cc | 1655 | VEC_free (breakpoint_p, tp_vec); |
76a2b958 | 1656 | |
00bf0b85 | 1657 | /* Send down all the trace state variables too. */ |
35b1e5cc | 1658 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) |
782b2b07 | 1659 | { |
00bf0b85 | 1660 | target_download_trace_state_variable (tsv); |
782b2b07 | 1661 | } |
35b1e5cc SS |
1662 | |
1663 | /* Tell target to treat text-like sections as transparent. */ | |
1664 | target_trace_set_readonly_regions (); | |
4daf5ac0 SS |
1665 | /* Set some mode flags. */ |
1666 | target_set_disconnected_tracing (disconnected_tracing); | |
1667 | target_set_circular_trace_buffer (circular_trace_buffer); | |
1042e4c0 | 1668 | |
35b1e5cc SS |
1669 | /* Now insert traps and begin collecting data. */ |
1670 | target_trace_start (); | |
1042e4c0 | 1671 | |
35b1e5cc SS |
1672 | /* Reset our local state. */ |
1673 | set_traceframe_num (-1); | |
1674 | set_tracepoint_num (-1); | |
1675 | set_traceframe_context (NULL); | |
00bf0b85 | 1676 | current_trace_status()->running = 1; |
b3b9301e | 1677 | clear_traceframe_info (); |
1042e4c0 SS |
1678 | } |
1679 | ||
f224b49d VP |
1680 | /* tstart command: |
1681 | ||
1682 | Tell target to clear any previous trace experiment. | |
1683 | Walk the list of tracepoints, and send them (and their actions) | |
1684 | to the target. If no errors, | |
1685 | Tell target to start a new trace experiment. */ | |
1686 | ||
1687 | static void | |
1688 | trace_start_command (char *args, int from_tty) | |
1689 | { | |
1690 | dont_repeat (); /* Like "run", dangerous to repeat accidentally. */ | |
1691 | ||
615bcdef SS |
1692 | if (current_trace_status ()->running) |
1693 | { | |
1694 | if (from_tty | |
1695 | && !query (_("A trace is running already. Start a new run? "))) | |
1696 | error (_("New trace run not started.")); | |
1697 | } | |
1698 | ||
f224b49d VP |
1699 | start_tracing (); |
1700 | } | |
1701 | ||
c906108c SS |
1702 | /* tstop command */ |
1703 | static void | |
fba45db2 | 1704 | trace_stop_command (char *args, int from_tty) |
d183932d | 1705 | { |
615bcdef SS |
1706 | if (!current_trace_status ()->running) |
1707 | error (_("Trace is not running.")); | |
1708 | ||
35b1e5cc | 1709 | stop_tracing (); |
c906108c SS |
1710 | } |
1711 | ||
d5551862 | 1712 | void |
f224b49d | 1713 | stop_tracing (void) |
d5551862 | 1714 | { |
35b1e5cc | 1715 | target_trace_stop (); |
c378eb4e | 1716 | /* Should change in response to reply? */ |
00bf0b85 | 1717 | current_trace_status ()->running = 0; |
d5551862 SS |
1718 | } |
1719 | ||
c906108c SS |
1720 | /* tstatus command */ |
1721 | static void | |
fba45db2 | 1722 | trace_status_command (char *args, int from_tty) |
d183932d | 1723 | { |
00bf0b85 SS |
1724 | struct trace_status *ts = current_trace_status (); |
1725 | int status; | |
35b1e5cc | 1726 | |
00bf0b85 SS |
1727 | status = target_get_trace_status (ts); |
1728 | ||
1729 | if (status == -1) | |
1730 | { | |
1731 | if (ts->from_file) | |
1732 | printf_filtered (_("Using a trace file.\n")); | |
1733 | else | |
1734 | { | |
1735 | printf_filtered (_("Trace can not be run on this target.\n")); | |
1736 | return; | |
1737 | } | |
1738 | } | |
1739 | ||
1740 | if (!ts->running_known) | |
1741 | { | |
1742 | printf_filtered (_("Run/stop status is unknown.\n")); | |
1743 | } | |
1744 | else if (ts->running) | |
c906108c | 1745 | { |
35b1e5cc | 1746 | printf_filtered (_("Trace is running on the target.\n")); |
c906108c SS |
1747 | } |
1748 | else | |
00bf0b85 SS |
1749 | { |
1750 | switch (ts->stop_reason) | |
1751 | { | |
1752 | case trace_never_run: | |
1753 | printf_filtered (_("No trace has been run on the target.\n")); | |
1754 | break; | |
1755 | case tstop_command: | |
1756 | printf_filtered (_("Trace stopped by a tstop command.\n")); | |
1757 | break; | |
1758 | case trace_buffer_full: | |
1759 | printf_filtered (_("Trace stopped because the buffer was full.\n")); | |
1760 | break; | |
1761 | case trace_disconnected: | |
1762 | printf_filtered (_("Trace stopped because of disconnection.\n")); | |
1763 | break; | |
1764 | case tracepoint_passcount: | |
00bf0b85 SS |
1765 | printf_filtered (_("Trace stopped by tracepoint %d.\n"), |
1766 | ts->stopping_tracepoint); | |
1767 | break; | |
6c28cbf2 SS |
1768 | case tracepoint_error: |
1769 | if (ts->stopping_tracepoint) | |
3e43a32a MS |
1770 | printf_filtered (_("Trace stopped by an " |
1771 | "error (%s, tracepoint %d).\n"), | |
6c28cbf2 SS |
1772 | ts->error_desc, ts->stopping_tracepoint); |
1773 | else | |
1774 | printf_filtered (_("Trace stopped by an error (%s).\n"), | |
1775 | ts->error_desc); | |
1776 | break; | |
00bf0b85 SS |
1777 | case trace_stop_reason_unknown: |
1778 | printf_filtered (_("Trace stopped for an unknown reason.\n")); | |
1779 | break; | |
1780 | default: | |
1781 | printf_filtered (_("Trace stopped for some other reason (%d).\n"), | |
1782 | ts->stop_reason); | |
1783 | break; | |
1784 | } | |
1785 | } | |
1786 | ||
4daf5ac0 SS |
1787 | if (ts->traceframes_created >= 0 |
1788 | && ts->traceframe_count != ts->traceframes_created) | |
1789 | { | |
3e43a32a MS |
1790 | printf_filtered (_("Buffer contains %d trace " |
1791 | "frames (of %d created total).\n"), | |
4daf5ac0 SS |
1792 | ts->traceframe_count, ts->traceframes_created); |
1793 | } | |
1794 | else if (ts->traceframe_count >= 0) | |
00bf0b85 SS |
1795 | { |
1796 | printf_filtered (_("Collected %d trace frames.\n"), | |
1797 | ts->traceframe_count); | |
1798 | } | |
1799 | ||
4daf5ac0 | 1800 | if (ts->buffer_free >= 0) |
00bf0b85 | 1801 | { |
4daf5ac0 SS |
1802 | if (ts->buffer_size >= 0) |
1803 | { | |
1804 | printf_filtered (_("Trace buffer has %d bytes of %d bytes free"), | |
1805 | ts->buffer_free, ts->buffer_size); | |
1806 | if (ts->buffer_size > 0) | |
1807 | printf_filtered (_(" (%d%% full)"), | |
1808 | ((int) ((((long long) (ts->buffer_size | |
1809 | - ts->buffer_free)) * 100) | |
1810 | / ts->buffer_size))); | |
1811 | printf_filtered (_(".\n")); | |
1812 | } | |
1813 | else | |
1814 | printf_filtered (_("Trace buffer has %d bytes free.\n"), | |
1815 | ts->buffer_free); | |
00bf0b85 | 1816 | } |
35b1e5cc | 1817 | |
33da3f1c SS |
1818 | if (ts->disconnected_tracing) |
1819 | printf_filtered (_("Trace will continue if GDB disconnects.\n")); | |
1820 | else | |
1821 | printf_filtered (_("Trace will stop if GDB disconnects.\n")); | |
1822 | ||
1823 | if (ts->circular_buffer) | |
1824 | printf_filtered (_("Trace buffer is circular.\n")); | |
1825 | ||
00bf0b85 | 1826 | /* Now report on what we're doing with tfind. */ |
35b1e5cc SS |
1827 | if (traceframe_number >= 0) |
1828 | printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"), | |
1829 | traceframe_number, tracepoint_number); | |
1830 | else | |
1831 | printf_filtered (_("Not looking at any trace frame.\n")); | |
c906108c SS |
1832 | } |
1833 | ||
f224b49d VP |
1834 | /* Report the trace status to uiout, in a way suitable for MI, and not |
1835 | suitable for CLI. If ON_STOP is true, suppress a few fields that | |
1836 | are not meaningful in the -trace-stop response. | |
1837 | ||
1838 | The implementation is essentially parallel to trace_status_command, but | |
1839 | merging them will result in unreadable code. */ | |
1840 | void | |
1841 | trace_status_mi (int on_stop) | |
1842 | { | |
1843 | struct trace_status *ts = current_trace_status (); | |
1844 | int status; | |
f224b49d VP |
1845 | |
1846 | status = target_get_trace_status (ts); | |
1847 | ||
1848 | if (status == -1 && !ts->from_file) | |
1849 | { | |
1850 | ui_out_field_string (uiout, "supported", "0"); | |
1851 | return; | |
1852 | } | |
1853 | ||
1854 | if (ts->from_file) | |
1855 | ui_out_field_string (uiout, "supported", "file"); | |
1856 | else if (!on_stop) | |
1857 | ui_out_field_string (uiout, "supported", "1"); | |
1858 | ||
1859 | gdb_assert (ts->running_known); | |
1860 | ||
1861 | if (ts->running) | |
1862 | { | |
1863 | ui_out_field_string (uiout, "running", "1"); | |
1864 | ||
1865 | /* Unlike CLI, do not show the state of 'disconnected-tracing' variable. | |
1866 | Given that the frontend gets the status either on -trace-stop, or from | |
1867 | -trace-status after re-connection, it does not seem like this | |
1868 | information is necessary for anything. It is not necessary for either | |
1869 | figuring the vital state of the target nor for navigation of trace | |
1870 | frames. If the frontend wants to show the current state is some | |
1871 | configure dialog, it can request the value when such dialog is | |
1872 | invoked by the user. */ | |
1873 | } | |
1874 | else | |
1875 | { | |
1876 | char *stop_reason = NULL; | |
1877 | int stopping_tracepoint = -1; | |
1878 | ||
1879 | if (!on_stop) | |
1880 | ui_out_field_string (uiout, "running", "0"); | |
1881 | ||
1882 | if (ts->stop_reason != trace_stop_reason_unknown) | |
1883 | { | |
1884 | switch (ts->stop_reason) | |
1885 | { | |
1886 | case tstop_command: | |
1887 | stop_reason = "request"; | |
1888 | break; | |
1889 | case trace_buffer_full: | |
1890 | stop_reason = "overflow"; | |
1891 | break; | |
1892 | case trace_disconnected: | |
1893 | stop_reason = "disconnection"; | |
1894 | break; | |
1895 | case tracepoint_passcount: | |
1896 | stop_reason = "passcount"; | |
1897 | stopping_tracepoint = ts->stopping_tracepoint; | |
1898 | break; | |
6c28cbf2 SS |
1899 | case tracepoint_error: |
1900 | stop_reason = "error"; | |
1901 | stopping_tracepoint = ts->stopping_tracepoint; | |
1902 | break; | |
f224b49d VP |
1903 | } |
1904 | ||
1905 | if (stop_reason) | |
1906 | { | |
1907 | ui_out_field_string (uiout, "stop-reason", stop_reason); | |
1908 | if (stopping_tracepoint != -1) | |
1909 | ui_out_field_int (uiout, "stopping-tracepoint", | |
1910 | stopping_tracepoint); | |
6c28cbf2 SS |
1911 | if (ts->stop_reason == tracepoint_error) |
1912 | ui_out_field_string (uiout, "error-description", | |
1913 | ts->error_desc); | |
f224b49d VP |
1914 | } |
1915 | } | |
1916 | } | |
1917 | ||
a97153c7 | 1918 | if (ts->traceframe_count != -1) |
f224b49d | 1919 | ui_out_field_int (uiout, "frames", ts->traceframe_count); |
87290684 SS |
1920 | if (ts->traceframes_created != -1) |
1921 | ui_out_field_int (uiout, "frames-created", ts->traceframes_created); | |
a97153c7 PA |
1922 | if (ts->buffer_size != -1) |
1923 | ui_out_field_int (uiout, "buffer-size", ts->buffer_size); | |
1924 | if (ts->buffer_free != -1) | |
1925 | ui_out_field_int (uiout, "buffer-free", ts->buffer_free); | |
1926 | ||
1927 | ui_out_field_int (uiout, "disconnected", ts->disconnected_tracing); | |
1928 | ui_out_field_int (uiout, "circular", ts->circular_buffer); | |
f224b49d VP |
1929 | } |
1930 | ||
33da3f1c SS |
1931 | /* This function handles the details of what to do about an ongoing |
1932 | tracing run if the user has asked to detach or otherwise disconnect | |
1933 | from the target. */ | |
d5551862 | 1934 | void |
33da3f1c | 1935 | disconnect_tracing (int from_tty) |
d5551862 | 1936 | { |
00bf0b85 SS |
1937 | /* It can happen that the target that was tracing went away on its |
1938 | own, and we didn't notice. Get a status update, and if the | |
1939 | current target doesn't even do tracing, then assume it's not | |
1940 | running anymore. */ | |
1941 | if (target_get_trace_status (current_trace_status ()) < 0) | |
1942 | current_trace_status ()->running = 0; | |
1943 | ||
33da3f1c SS |
1944 | /* If running interactively, give the user the option to cancel and |
1945 | then decide what to do differently with the run. Scripts are | |
1946 | just going to disconnect and let the target deal with it, | |
1947 | according to how it's been instructed previously via | |
1948 | disconnected-tracing. */ | |
00bf0b85 | 1949 | if (current_trace_status ()->running && from_tty) |
d5551862 | 1950 | { |
33da3f1c SS |
1951 | if (current_trace_status ()->disconnected_tracing) |
1952 | { | |
3e43a32a MS |
1953 | if (!query (_("Trace is running and will " |
1954 | "continue after detach; detach anyway? "))) | |
33da3f1c SS |
1955 | error (_("Not confirmed.")); |
1956 | } | |
1957 | else | |
1958 | { | |
3e43a32a MS |
1959 | if (!query (_("Trace is running but will " |
1960 | "stop on detach; detach anyway? "))) | |
33da3f1c SS |
1961 | error (_("Not confirmed.")); |
1962 | } | |
d5551862 | 1963 | } |
8b9b7ef8 SS |
1964 | |
1965 | /* Also we want to be out of tfind mode, otherwise things can get | |
1966 | confusing upon reconnection. Just use these calls instead of | |
1967 | full tfind_1 behavior because we're in the middle of detaching, | |
1968 | and there's no point to updating current stack frame etc. */ | |
e6e4e701 | 1969 | set_current_traceframe (-1); |
8b9b7ef8 | 1970 | set_traceframe_context (NULL); |
d5551862 SS |
1971 | } |
1972 | ||
d183932d | 1973 | /* Worker function for the various flavors of the tfind command. */ |
f197e0f1 VP |
1974 | void |
1975 | tfind_1 (enum trace_find_type type, int num, | |
1976 | ULONGEST addr1, ULONGEST addr2, | |
1977 | int from_tty) | |
c906108c SS |
1978 | { |
1979 | int target_frameno = -1, target_tracept = -1; | |
2ce6d6bf | 1980 | struct frame_id old_frame_id = null_frame_id; |
d5551862 | 1981 | struct breakpoint *tp; |
c906108c | 1982 | |
2ce6d6bf SS |
1983 | /* Only try to get the current stack frame if we have a chance of |
1984 | succeeding. In particular, if we're trying to get a first trace | |
1985 | frame while all threads are running, it's not going to succeed, | |
1986 | so leave it with a default value and let the frame comparison | |
1987 | below (correctly) decide to print out the source location of the | |
1988 | trace frame. */ | |
1989 | if (!(type == tfind_number && num == -1) | |
1990 | && (has_stack_frames () || traceframe_number >= 0)) | |
1991 | old_frame_id = get_frame_id (get_current_frame ()); | |
c906108c | 1992 | |
35b1e5cc SS |
1993 | target_frameno = target_trace_find (type, num, addr1, addr2, |
1994 | &target_tracept); | |
1995 | ||
1996 | if (type == tfind_number | |
1997 | && num == -1 | |
1998 | && target_frameno == -1) | |
1999 | { | |
2000 | /* We told the target to get out of tfind mode, and it did. */ | |
2001 | } | |
2002 | else if (target_frameno == -1) | |
2003 | { | |
2ce6d6bf | 2004 | /* A request for a non-existent trace frame has failed. |
35b1e5cc SS |
2005 | Our response will be different, depending on FROM_TTY: |
2006 | ||
2007 | If FROM_TTY is true, meaning that this command was | |
2008 | typed interactively by the user, then give an error | |
2009 | and DO NOT change the state of traceframe_number etc. | |
2010 | ||
2011 | However if FROM_TTY is false, meaning that we're either | |
2012 | in a script, a loop, or a user-defined command, then | |
2013 | DON'T give an error, but DO change the state of | |
2014 | traceframe_number etc. to invalid. | |
2015 | ||
2016 | The rationalle is that if you typed the command, you | |
2017 | might just have committed a typo or something, and you'd | |
2018 | like to NOT lose your current debugging state. However | |
2019 | if you're in a user-defined command or especially in a | |
2020 | loop, then you need a way to detect that the command | |
2021 | failed WITHOUT aborting. This allows you to write | |
2022 | scripts that search thru the trace buffer until the end, | |
2023 | and then continue on to do something else. */ | |
2024 | ||
2025 | if (from_tty) | |
2026 | error (_("Target failed to find requested trace frame.")); | |
2027 | else | |
2028 | { | |
2029 | if (info_verbose) | |
2030 | printf_filtered ("End of trace buffer.\n"); | |
c378eb4e | 2031 | #if 0 /* dubious now? */ |
35b1e5cc SS |
2032 | /* The following will not recurse, since it's |
2033 | special-cased. */ | |
2034 | trace_find_command ("-1", from_tty); | |
2035 | #endif | |
2036 | } | |
2037 | } | |
2038 | ||
d5551862 SS |
2039 | tp = get_tracepoint_by_number_on_target (target_tracept); |
2040 | ||
35f196d9 | 2041 | reinit_frame_cache (); |
c906108c | 2042 | registers_changed (); |
2f4d8875 | 2043 | target_dcache_invalidate (); |
c906108c | 2044 | set_traceframe_num (target_frameno); |
b3b9301e | 2045 | clear_traceframe_info (); |
d5551862 | 2046 | set_tracepoint_num (tp ? tp->number : target_tracept); |
c906108c | 2047 | if (target_frameno == -1) |
fb14de7b | 2048 | set_traceframe_context (NULL); |
c906108c | 2049 | else |
fb14de7b | 2050 | set_traceframe_context (get_current_frame ()); |
c906108c | 2051 | |
f197e0f1 VP |
2052 | if (traceframe_number >= 0) |
2053 | { | |
2054 | /* Use different branches for MI and CLI to make CLI messages | |
2055 | i18n-eable. */ | |
2056 | if (ui_out_is_mi_like_p (uiout)) | |
2057 | { | |
2058 | ui_out_field_string (uiout, "found", "1"); | |
2059 | ui_out_field_int (uiout, "tracepoint", tracepoint_number); | |
2060 | ui_out_field_int (uiout, "traceframe", traceframe_number); | |
2061 | } | |
2062 | else | |
2063 | { | |
2064 | printf_unfiltered (_("Found trace frame %d, tracepoint %d\n"), | |
2065 | traceframe_number, tracepoint_number); | |
2066 | } | |
2067 | } | |
2068 | else | |
2069 | { | |
2070 | if (ui_out_is_mi_like_p (uiout)) | |
2071 | ui_out_field_string (uiout, "found", "0"); | |
4136fdd2 SS |
2072 | else if (type == tfind_number && num == -1) |
2073 | printf_unfiltered (_("No longer looking at any trace frame\n")); | |
c378eb4e | 2074 | else /* This case may never occur, check. */ |
4136fdd2 | 2075 | printf_unfiltered (_("No trace frame found\n")); |
f197e0f1 VP |
2076 | } |
2077 | ||
00bf0b85 SS |
2078 | /* If we're in nonstop mode and getting out of looking at trace |
2079 | frames, there won't be any current frame to go back to and | |
2080 | display. */ | |
2081 | if (from_tty | |
2082 | && (has_stack_frames () || traceframe_number >= 0)) | |
c906108c | 2083 | { |
0faf0076 | 2084 | enum print_what print_what; |
c906108c | 2085 | |
2ce6d6bf | 2086 | /* NOTE: in imitation of the step command, try to determine |
d183932d MS |
2087 | whether we have made a transition from one function to |
2088 | another. If so, we'll print the "stack frame" (ie. the new | |
2089 | function and it's arguments) -- otherwise we'll just show the | |
fb14de7b UW |
2090 | new source line. */ |
2091 | ||
2092 | if (frame_id_eq (old_frame_id, | |
2093 | get_frame_id (get_current_frame ()))) | |
0faf0076 | 2094 | print_what = SRC_LINE; |
c906108c | 2095 | else |
0faf0076 | 2096 | print_what = SRC_AND_LOC; |
c906108c | 2097 | |
b04f3ab4 | 2098 | print_stack_frame (get_selected_frame (NULL), 1, print_what); |
c906108c SS |
2099 | do_displays (); |
2100 | } | |
2101 | } | |
2102 | ||
2103 | /* trace_find_command takes a trace frame number n, | |
2104 | sends "QTFrame:<n>" to the target, | |
2105 | and accepts a reply that may contain several optional pieces | |
2106 | of information: a frame number, a tracepoint number, and an | |
2107 | indication of whether this is a trap frame or a stepping frame. | |
2108 | ||
2109 | The minimal response is just "OK" (which indicates that the | |
2110 | target does not give us a frame number or a tracepoint number). | |
2111 | Instead of that, the target may send us a string containing | |
2112 | any combination of: | |
c5aa993b JM |
2113 | F<hexnum> (gives the selected frame number) |
2114 | T<hexnum> (gives the selected tracepoint number) | |
2115 | */ | |
c906108c SS |
2116 | |
2117 | /* tfind command */ | |
2118 | static void | |
fba45db2 | 2119 | trace_find_command (char *args, int from_tty) |
c378eb4e | 2120 | { /* This should only be called with a numeric argument. */ |
c906108c | 2121 | int frameno = -1; |
c906108c | 2122 | |
00bf0b85 | 2123 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2124 | error (_("May not look at trace frames while trace is running.")); |
35b1e5cc SS |
2125 | |
2126 | if (args == 0 || *args == 0) | |
2127 | { /* TFIND with no args means find NEXT trace frame. */ | |
2128 | if (traceframe_number == -1) | |
c378eb4e | 2129 | frameno = 0; /* "next" is first one. */ |
35b1e5cc SS |
2130 | else |
2131 | frameno = traceframe_number + 1; | |
2132 | } | |
2133 | else if (0 == strcmp (args, "-")) | |
c906108c | 2134 | { |
35b1e5cc SS |
2135 | if (traceframe_number == -1) |
2136 | error (_("not debugging trace buffer")); | |
2137 | else if (from_tty && traceframe_number == 0) | |
2138 | error (_("already at start of trace buffer")); | |
2139 | ||
2140 | frameno = traceframe_number - 1; | |
2141 | } | |
2142 | /* A hack to work around eval's need for fp to have been collected. */ | |
2143 | else if (0 == strcmp (args, "-1")) | |
2144 | frameno = -1; | |
2145 | else | |
2146 | frameno = parse_and_eval_long (args); | |
c906108c | 2147 | |
35b1e5cc SS |
2148 | if (frameno < -1) |
2149 | error (_("invalid input (%d is less than zero)"), frameno); | |
c906108c | 2150 | |
f197e0f1 | 2151 | tfind_1 (tfind_number, frameno, 0, 0, from_tty); |
c906108c SS |
2152 | } |
2153 | ||
2154 | /* tfind end */ | |
2155 | static void | |
fba45db2 | 2156 | trace_find_end_command (char *args, int from_tty) |
c906108c SS |
2157 | { |
2158 | trace_find_command ("-1", from_tty); | |
2159 | } | |
2160 | ||
2161 | /* tfind none */ | |
2162 | static void | |
fba45db2 | 2163 | trace_find_none_command (char *args, int from_tty) |
c906108c SS |
2164 | { |
2165 | trace_find_command ("-1", from_tty); | |
2166 | } | |
2167 | ||
2168 | /* tfind start */ | |
2169 | static void | |
fba45db2 | 2170 | trace_find_start_command (char *args, int from_tty) |
c906108c SS |
2171 | { |
2172 | trace_find_command ("0", from_tty); | |
2173 | } | |
2174 | ||
2175 | /* tfind pc command */ | |
2176 | static void | |
fba45db2 | 2177 | trace_find_pc_command (char *args, int from_tty) |
d183932d | 2178 | { |
c906108c | 2179 | CORE_ADDR pc; |
c906108c | 2180 | |
00bf0b85 | 2181 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2182 | error (_("May not look at trace frames while trace is running.")); |
c906108c | 2183 | |
35b1e5cc SS |
2184 | if (args == 0 || *args == 0) |
2185 | pc = regcache_read_pc (get_current_regcache ()); | |
c906108c | 2186 | else |
35b1e5cc SS |
2187 | pc = parse_and_eval_address (args); |
2188 | ||
f197e0f1 | 2189 | tfind_1 (tfind_pc, 0, pc, 0, from_tty); |
c906108c SS |
2190 | } |
2191 | ||
2192 | /* tfind tracepoint command */ | |
2193 | static void | |
fba45db2 | 2194 | trace_find_tracepoint_command (char *args, int from_tty) |
d183932d | 2195 | { |
c906108c | 2196 | int tdp; |
d5551862 | 2197 | struct breakpoint *tp; |
c906108c | 2198 | |
00bf0b85 | 2199 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2200 | error (_("May not look at trace frames while trace is running.")); |
383e5f85 | 2201 | |
35b1e5cc SS |
2202 | if (args == 0 || *args == 0) |
2203 | { | |
2204 | if (tracepoint_number == -1) | |
2205 | error (_("No current tracepoint -- please supply an argument.")); | |
c906108c | 2206 | else |
c378eb4e | 2207 | tdp = tracepoint_number; /* Default is current TDP. */ |
c906108c SS |
2208 | } |
2209 | else | |
35b1e5cc SS |
2210 | tdp = parse_and_eval_long (args); |
2211 | ||
2212 | /* If we have the tracepoint on hand, use the number that the | |
2213 | target knows about (which may be different if we disconnected | |
2214 | and reconnected). */ | |
2215 | tp = get_tracepoint (tdp); | |
2216 | if (tp) | |
2217 | tdp = tp->number_on_target; | |
2218 | ||
f197e0f1 | 2219 | tfind_1 (tfind_tp, tdp, 0, 0, from_tty); |
c906108c SS |
2220 | } |
2221 | ||
2222 | /* TFIND LINE command: | |
c5aa993b | 2223 | |
c906108c | 2224 | This command will take a sourceline for argument, just like BREAK |
d183932d | 2225 | or TRACE (ie. anything that "decode_line_1" can handle). |
c5aa993b | 2226 | |
c906108c SS |
2227 | With no argument, this command will find the next trace frame |
2228 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
2229 | ||
2230 | static void | |
fba45db2 | 2231 | trace_find_line_command (char *args, int from_tty) |
d183932d | 2232 | { |
c906108c SS |
2233 | static CORE_ADDR start_pc, end_pc; |
2234 | struct symtabs_and_lines sals; | |
2235 | struct symtab_and_line sal; | |
c906108c SS |
2236 | struct cleanup *old_chain; |
2237 | ||
00bf0b85 | 2238 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2239 | error (_("May not look at trace frames while trace is running.")); |
5af949e3 | 2240 | |
35b1e5cc SS |
2241 | if (args == 0 || *args == 0) |
2242 | { | |
2243 | sal = find_pc_line (get_frame_pc (get_current_frame ()), 0); | |
2244 | sals.nelts = 1; | |
2245 | sals.sals = (struct symtab_and_line *) | |
2246 | xmalloc (sizeof (struct symtab_and_line)); | |
2247 | sals.sals[0] = sal; | |
2248 | } | |
2249 | else | |
42e08e69 | 2250 | { |
35b1e5cc SS |
2251 | sals = decode_line_spec (args, 1); |
2252 | sal = sals.sals[0]; | |
2253 | } | |
2254 | ||
2255 | old_chain = make_cleanup (xfree, sals.sals); | |
2256 | if (sal.symtab == 0) | |
42e08e69 SS |
2257 | error (_("No line number information available.")); |
2258 | ||
2259 | if (sal.line > 0 && find_line_pc_range (sal, &start_pc, &end_pc)) | |
35b1e5cc SS |
2260 | { |
2261 | if (start_pc == end_pc) | |
2262 | { | |
2263 | printf_filtered ("Line %d of \"%s\"", | |
2264 | sal.line, sal.symtab->filename); | |
2265 | wrap_here (" "); | |
2266 | printf_filtered (" is at address "); | |
2267 | print_address (get_current_arch (), start_pc, gdb_stdout); | |
2268 | wrap_here (" "); | |
2269 | printf_filtered (" but contains no code.\n"); | |
2270 | sal = find_pc_line (start_pc, 0); | |
2271 | if (sal.line > 0 | |
2272 | && find_line_pc_range (sal, &start_pc, &end_pc) | |
2273 | && start_pc != end_pc) | |
2274 | printf_filtered ("Attempting to find line %d instead.\n", | |
2275 | sal.line); | |
2276 | else | |
2277 | error (_("Cannot find a good line.")); | |
2278 | } | |
2279 | } | |
2280 | else | |
2281 | /* Is there any case in which we get here, and have an address | |
2282 | which the user would want to see? If we have debugging | |
2283 | symbols and no line numbers? */ | |
2284 | error (_("Line number %d is out of range for \"%s\"."), | |
2285 | sal.line, sal.symtab->filename); | |
2286 | ||
2287 | /* Find within range of stated line. */ | |
2288 | if (args && *args) | |
f197e0f1 | 2289 | tfind_1 (tfind_range, 0, start_pc, end_pc - 1, from_tty); |
c906108c | 2290 | else |
f197e0f1 | 2291 | tfind_1 (tfind_outside, 0, start_pc, end_pc - 1, from_tty); |
35b1e5cc | 2292 | do_cleanups (old_chain); |
c906108c SS |
2293 | } |
2294 | ||
2295 | /* tfind range command */ | |
2296 | static void | |
fba45db2 | 2297 | trace_find_range_command (char *args, int from_tty) |
104c1213 | 2298 | { |
c906108c SS |
2299 | static CORE_ADDR start, stop; |
2300 | char *tmp; | |
2301 | ||
00bf0b85 | 2302 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2303 | error (_("May not look at trace frames while trace is running.")); |
c906108c | 2304 | |
35b1e5cc SS |
2305 | if (args == 0 || *args == 0) |
2306 | { /* XXX FIXME: what should default behavior be? */ | |
2307 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); | |
2308 | return; | |
2309 | } | |
c906108c | 2310 | |
35b1e5cc SS |
2311 | if (0 != (tmp = strchr (args, ','))) |
2312 | { | |
c378eb4e | 2313 | *tmp++ = '\0'; /* Terminate start address. */ |
35b1e5cc SS |
2314 | while (isspace ((int) *tmp)) |
2315 | tmp++; | |
2316 | start = parse_and_eval_address (args); | |
2317 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
2318 | } |
2319 | else | |
c378eb4e | 2320 | { /* No explicit end address? */ |
35b1e5cc SS |
2321 | start = parse_and_eval_address (args); |
2322 | stop = start + 1; /* ??? */ | |
2323 | } | |
2324 | ||
f197e0f1 | 2325 | tfind_1 (tfind_range, 0, start, stop, from_tty); |
c906108c SS |
2326 | } |
2327 | ||
2328 | /* tfind outside command */ | |
2329 | static void | |
fba45db2 | 2330 | trace_find_outside_command (char *args, int from_tty) |
104c1213 | 2331 | { |
c906108c SS |
2332 | CORE_ADDR start, stop; |
2333 | char *tmp; | |
2334 | ||
00bf0b85 | 2335 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2336 | error (_("May not look at trace frames while trace is running.")); |
c906108c | 2337 | |
35b1e5cc | 2338 | if (args == 0 || *args == 0) |
c378eb4e | 2339 | { /* XXX FIXME: what should default behavior be? */ |
35b1e5cc SS |
2340 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); |
2341 | return; | |
2342 | } | |
c906108c | 2343 | |
35b1e5cc SS |
2344 | if (0 != (tmp = strchr (args, ','))) |
2345 | { | |
c378eb4e | 2346 | *tmp++ = '\0'; /* Terminate start address. */ |
35b1e5cc SS |
2347 | while (isspace ((int) *tmp)) |
2348 | tmp++; | |
2349 | start = parse_and_eval_address (args); | |
2350 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
2351 | } |
2352 | else | |
c378eb4e | 2353 | { /* No explicit end address? */ |
35b1e5cc SS |
2354 | start = parse_and_eval_address (args); |
2355 | stop = start + 1; /* ??? */ | |
2356 | } | |
2357 | ||
f197e0f1 | 2358 | tfind_1 (tfind_outside, 0, start, stop, from_tty); |
c906108c SS |
2359 | } |
2360 | ||
c906108c SS |
2361 | /* info scope command: list the locals for a scope. */ |
2362 | static void | |
fba45db2 | 2363 | scope_info (char *args, int from_tty) |
c906108c | 2364 | { |
c906108c SS |
2365 | struct symtabs_and_lines sals; |
2366 | struct symbol *sym; | |
2367 | struct minimal_symbol *msym; | |
2368 | struct block *block; | |
2369 | char **canonical, *symname, *save_args = args; | |
de4f826b DC |
2370 | struct dict_iterator iter; |
2371 | int j, count = 0; | |
768a979c UW |
2372 | struct gdbarch *gdbarch; |
2373 | int regno; | |
c906108c SS |
2374 | |
2375 | if (args == 0 || *args == 0) | |
3e43a32a MS |
2376 | error (_("requires an argument (function, " |
2377 | "line or *addr) to define a scope")); | |
c906108c | 2378 | |
68219205 | 2379 | sals = decode_line_1 (&args, 1, NULL, 0, &canonical, NULL); |
c906108c | 2380 | if (sals.nelts == 0) |
c378eb4e | 2381 | return; /* Presumably decode_line_1 has already warned. */ |
c906108c | 2382 | |
c378eb4e | 2383 | /* Resolve line numbers to PC. */ |
c906108c SS |
2384 | resolve_sal_pc (&sals.sals[0]); |
2385 | block = block_for_pc (sals.sals[0].pc); | |
2386 | ||
2387 | while (block != 0) | |
2388 | { | |
c378eb4e | 2389 | QUIT; /* Allow user to bail out with ^C. */ |
de4f826b | 2390 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 2391 | { |
c378eb4e | 2392 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c SS |
2393 | if (count == 0) |
2394 | printf_filtered ("Scope for %s:\n", save_args); | |
2395 | count++; | |
e88c90f2 | 2396 | |
3567439c | 2397 | symname = SYMBOL_PRINT_NAME (sym); |
c906108c | 2398 | if (symname == NULL || *symname == '\0') |
c378eb4e | 2399 | continue; /* Probably botched, certainly useless. */ |
c906108c | 2400 | |
768a979c UW |
2401 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
2402 | ||
c906108c | 2403 | printf_filtered ("Symbol %s is ", symname); |
c5aa993b JM |
2404 | switch (SYMBOL_CLASS (sym)) |
2405 | { | |
2406 | default: | |
c378eb4e | 2407 | case LOC_UNDEF: /* Messed up symbol? */ |
c5aa993b JM |
2408 | printf_filtered ("a bogus symbol, class %d.\n", |
2409 | SYMBOL_CLASS (sym)); | |
c378eb4e | 2410 | count--; /* Don't count this one. */ |
c5aa993b JM |
2411 | continue; |
2412 | case LOC_CONST: | |
104c1213 | 2413 | printf_filtered ("a constant with value %ld (0x%lx)", |
c5aa993b JM |
2414 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); |
2415 | break; | |
2416 | case LOC_CONST_BYTES: | |
2417 | printf_filtered ("constant bytes: "); | |
2418 | if (SYMBOL_TYPE (sym)) | |
2419 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) | |
2420 | fprintf_filtered (gdb_stdout, " %02x", | |
2421 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); | |
2422 | break; | |
2423 | case LOC_STATIC: | |
2424 | printf_filtered ("in static storage at address "); | |
5af949e3 UW |
2425 | printf_filtered ("%s", paddress (gdbarch, |
2426 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2427 | break; |
2428 | case LOC_REGISTER: | |
768a979c UW |
2429 | /* GDBARCH is the architecture associated with the objfile |
2430 | the symbol is defined in; the target architecture may be | |
2431 | different, and may provide additional registers. However, | |
2432 | we do not know the target architecture at this point. | |
2433 | We assume the objfile architecture will contain all the | |
2434 | standard registers that occur in debug info in that | |
2435 | objfile. */ | |
3e43a32a MS |
2436 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, |
2437 | gdbarch); | |
768a979c | 2438 | |
2a2d4dc3 AS |
2439 | if (SYMBOL_IS_ARGUMENT (sym)) |
2440 | printf_filtered ("an argument in register $%s", | |
768a979c | 2441 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
2442 | else |
2443 | printf_filtered ("a local variable in register $%s", | |
768a979c | 2444 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2445 | break; |
2446 | case LOC_ARG: | |
c5aa993b JM |
2447 | printf_filtered ("an argument at stack/frame offset %ld", |
2448 | SYMBOL_VALUE (sym)); | |
2449 | break; | |
2450 | case LOC_LOCAL: | |
2451 | printf_filtered ("a local variable at frame offset %ld", | |
2452 | SYMBOL_VALUE (sym)); | |
2453 | break; | |
2454 | case LOC_REF_ARG: | |
2455 | printf_filtered ("a reference argument at offset %ld", | |
2456 | SYMBOL_VALUE (sym)); | |
2457 | break; | |
c5aa993b | 2458 | case LOC_REGPARM_ADDR: |
768a979c | 2459 | /* Note comment at LOC_REGISTER. */ |
3e43a32a MS |
2460 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, |
2461 | gdbarch); | |
c5aa993b | 2462 | printf_filtered ("the address of an argument, in register $%s", |
768a979c | 2463 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2464 | break; |
2465 | case LOC_TYPEDEF: | |
2466 | printf_filtered ("a typedef.\n"); | |
2467 | continue; | |
2468 | case LOC_LABEL: | |
2469 | printf_filtered ("a label at address "); | |
5af949e3 UW |
2470 | printf_filtered ("%s", paddress (gdbarch, |
2471 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2472 | break; |
2473 | case LOC_BLOCK: | |
2474 | printf_filtered ("a function at address "); | |
5af949e3 UW |
2475 | printf_filtered ("%s", |
2476 | paddress (gdbarch, BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))); | |
c5aa993b | 2477 | break; |
c5aa993b | 2478 | case LOC_UNRESOLVED: |
3567439c | 2479 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), |
450bd37b | 2480 | NULL, NULL); |
c5aa993b JM |
2481 | if (msym == NULL) |
2482 | printf_filtered ("Unresolved Static"); | |
2483 | else | |
2484 | { | |
2485 | printf_filtered ("static storage at address "); | |
5af949e3 UW |
2486 | printf_filtered ("%s", |
2487 | paddress (gdbarch, SYMBOL_VALUE_ADDRESS (msym))); | |
c5aa993b JM |
2488 | } |
2489 | break; | |
2490 | case LOC_OPTIMIZED_OUT: | |
2491 | printf_filtered ("optimized out.\n"); | |
2492 | continue; | |
450bd37b | 2493 | case LOC_COMPUTED: |
08922a10 SS |
2494 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, |
2495 | BLOCK_START (block), | |
2496 | gdb_stdout); | |
450bd37b | 2497 | break; |
c5aa993b | 2498 | } |
c906108c | 2499 | if (SYMBOL_TYPE (sym)) |
c5aa993b | 2500 | printf_filtered (", length %d.\n", |
450bd37b | 2501 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); |
c906108c SS |
2502 | } |
2503 | if (BLOCK_FUNCTION (block)) | |
2504 | break; | |
2505 | else | |
2506 | block = BLOCK_SUPERBLOCK (block); | |
2507 | } | |
2508 | if (count <= 0) | |
2509 | printf_filtered ("Scope for %s contains no locals or arguments.\n", | |
2510 | save_args); | |
2511 | } | |
2512 | ||
2513 | /* worker function (cleanup) */ | |
2514 | static void | |
710b33bd | 2515 | replace_comma (void *data) |
c906108c | 2516 | { |
710b33bd | 2517 | char *comma = data; |
c906108c SS |
2518 | *comma = ','; |
2519 | } | |
2520 | ||
afd02f27 PA |
2521 | |
2522 | /* Helper for trace_dump_command. Dump the action list starting at | |
2523 | ACTION. STEPPING_ACTIONS is true if we're iterating over the | |
2524 | actions of the body of a while-stepping action. STEPPING_FRAME is | |
2525 | set if the current traceframe was determined to be a while-stepping | |
2526 | traceframe. */ | |
2527 | ||
c906108c | 2528 | static void |
afd02f27 PA |
2529 | trace_dump_actions (struct command_line *action, |
2530 | int stepping_actions, int stepping_frame, | |
2531 | int from_tty) | |
c906108c | 2532 | { |
c5aa993b | 2533 | char *action_exp, *next_comma; |
c906108c | 2534 | |
afd02f27 | 2535 | for (; action != NULL; action = action->next) |
c906108c SS |
2536 | { |
2537 | struct cmd_list_element *cmd; | |
2538 | ||
c378eb4e | 2539 | QUIT; /* Allow user to bail out with ^C. */ |
a7bdde9e | 2540 | action_exp = action->line; |
104c1213 | 2541 | while (isspace ((int) *action_exp)) |
c906108c SS |
2542 | action_exp++; |
2543 | ||
2544 | /* The collection actions to be done while stepping are | |
c5aa993b | 2545 | bracketed by the commands "while-stepping" and "end". */ |
c906108c SS |
2546 | |
2547 | if (*action_exp == '#') /* comment line */ | |
2548 | continue; | |
2549 | ||
2550 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
2551 | if (cmd == 0) | |
8a3fe4f8 | 2552 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 2553 | |
bbaca940 | 2554 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
afd02f27 PA |
2555 | { |
2556 | int i; | |
2557 | ||
2558 | for (i = 0; i < action->body_count; ++i) | |
2559 | trace_dump_actions (action->body_list[i], | |
2560 | 1, stepping_frame, from_tty); | |
2561 | } | |
bbaca940 | 2562 | else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c SS |
2563 | { |
2564 | /* Display the collected data. | |
d183932d MS |
2565 | For the trap frame, display only what was collected at |
2566 | the trap. Likewise for stepping frames, display only | |
2567 | what was collected while stepping. This means that the | |
2568 | two boolean variables, STEPPING_FRAME and | |
2569 | STEPPING_ACTIONS should be equal. */ | |
c906108c SS |
2570 | if (stepping_frame == stepping_actions) |
2571 | { | |
c5aa993b | 2572 | do |
c378eb4e MS |
2573 | { /* Repeat over a comma-separated list. */ |
2574 | QUIT; /* Allow user to bail out with ^C. */ | |
c5aa993b JM |
2575 | if (*action_exp == ',') |
2576 | action_exp++; | |
104c1213 | 2577 | while (isspace ((int) *action_exp)) |
c5aa993b JM |
2578 | action_exp++; |
2579 | ||
2580 | next_comma = strchr (action_exp, ','); | |
2581 | ||
2582 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2583 | registers_info (NULL, from_tty); | |
2584 | else if (0 == strncasecmp (action_exp, "$loc", 4)) | |
2585 | locals_info (NULL, from_tty); | |
2586 | else if (0 == strncasecmp (action_exp, "$arg", 4)) | |
2587 | args_info (NULL, from_tty); | |
2588 | else | |
2589 | { /* variable */ | |
2590 | if (next_comma) | |
2591 | { | |
2592 | make_cleanup (replace_comma, next_comma); | |
2593 | *next_comma = '\0'; | |
2594 | } | |
2595 | printf_filtered ("%s = ", action_exp); | |
2596 | output_command (action_exp, from_tty); | |
2597 | printf_filtered ("\n"); | |
2598 | } | |
2599 | if (next_comma) | |
2600 | *next_comma = ','; | |
2601 | action_exp = next_comma; | |
2602 | } | |
2603 | while (action_exp && *action_exp == ','); | |
c906108c SS |
2604 | } |
2605 | } | |
2606 | } | |
afd02f27 PA |
2607 | } |
2608 | ||
2609 | /* The tdump command. */ | |
2610 | ||
2611 | static void | |
2612 | trace_dump_command (char *args, int from_tty) | |
2613 | { | |
2614 | struct regcache *regcache; | |
2615 | struct breakpoint *t; | |
2616 | int stepping_frame = 0; | |
2617 | struct bp_location *loc; | |
2114d44c SS |
2618 | char *line, *default_collect_line = NULL; |
2619 | struct command_line *actions, *default_collect_action = NULL; | |
2620 | struct cleanup *old_chain = NULL; | |
afd02f27 PA |
2621 | |
2622 | if (tracepoint_number == -1) | |
2623 | { | |
2624 | warning (_("No current trace frame.")); | |
2625 | return; | |
2626 | } | |
2627 | ||
2628 | t = get_tracepoint (tracepoint_number); | |
2629 | ||
2630 | if (t == NULL) | |
2631 | error (_("No known tracepoint matches 'current' tracepoint #%d."), | |
2632 | tracepoint_number); | |
2633 | ||
2634 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", | |
2635 | tracepoint_number, traceframe_number); | |
2636 | ||
2637 | /* The current frame is a trap frame if the frame PC is equal | |
2638 | to the tracepoint PC. If not, then the current frame was | |
2639 | collected during single-stepping. */ | |
2640 | ||
2641 | regcache = get_current_regcache (); | |
2642 | ||
2643 | /* If the traceframe's address matches any of the tracepoint's | |
2644 | locations, assume it is a direct hit rather than a while-stepping | |
2645 | frame. (FIXME this is not reliable, should record each frame's | |
2646 | type.) */ | |
2647 | stepping_frame = 1; | |
2648 | for (loc = t->loc; loc; loc = loc->next) | |
2649 | if (loc->address == regcache_read_pc (regcache)) | |
2650 | stepping_frame = 0; | |
2651 | ||
2114d44c SS |
2652 | actions = breakpoint_commands (t); |
2653 | ||
2654 | /* If there is a default-collect list, make up a collect command, | |
2655 | prepend to the tracepoint's commands, and pass the whole mess to | |
2656 | the trace dump scanner. We need to validate because | |
2657 | default-collect might have been junked since the trace run. */ | |
2658 | if (*default_collect) | |
2659 | { | |
2660 | default_collect_line = xstrprintf ("collect %s", default_collect); | |
2661 | old_chain = make_cleanup (xfree, default_collect_line); | |
2662 | line = default_collect_line; | |
2663 | validate_actionline (&line, t); | |
2664 | default_collect_action = xmalloc (sizeof (struct command_line)); | |
2665 | make_cleanup (xfree, default_collect_action); | |
2666 | default_collect_action->next = actions; | |
2667 | default_collect_action->line = line; | |
2668 | actions = default_collect_action; | |
2669 | } | |
2670 | ||
2671 | trace_dump_actions (actions, 0, stepping_frame, from_tty); | |
2672 | ||
2673 | if (*default_collect) | |
2674 | do_cleanups (old_chain); | |
c906108c SS |
2675 | } |
2676 | ||
409873ef SS |
2677 | /* Encode a piece of a tracepoint's source-level definition in a form |
2678 | that is suitable for both protocol and saving in files. */ | |
2679 | /* This version does not do multiple encodes for long strings; it should | |
2680 | return an offset to the next piece to encode. FIXME */ | |
2681 | ||
2682 | extern int | |
2683 | encode_source_string (int tpnum, ULONGEST addr, | |
2684 | char *srctype, char *src, char *buf, int buf_size) | |
2685 | { | |
2686 | if (80 + strlen (srctype) > buf_size) | |
2687 | error (_("Buffer too small for source encoding")); | |
2688 | sprintf (buf, "%x:%s:%s:%x:%x:", | |
3e43a32a MS |
2689 | tpnum, phex_nz (addr, sizeof (addr)), |
2690 | srctype, 0, (int) strlen (src)); | |
409873ef SS |
2691 | if (strlen (buf) + strlen (src) * 2 >= buf_size) |
2692 | error (_("Source string too long for buffer")); | |
2693 | bin2hex (src, buf + strlen (buf), 0); | |
2694 | return -1; | |
2695 | } | |
2696 | ||
00bf0b85 SS |
2697 | extern int trace_regblock_size; |
2698 | ||
011aacb0 VP |
2699 | /* Save tracepoint data to file named FILENAME. If TARGET_DOES_SAVE is |
2700 | non-zero, the save is performed on the target, otherwise GDB obtains all | |
2701 | trace data and saves it locally. */ | |
2702 | ||
2703 | void | |
2704 | trace_save (const char *filename, int target_does_save) | |
00bf0b85 | 2705 | { |
00bf0b85 | 2706 | struct cleanup *cleanup; |
011aacb0 | 2707 | char *pathname; |
00bf0b85 SS |
2708 | struct trace_status *ts = current_trace_status (); |
2709 | int err, status; | |
2710 | FILE *fp; | |
2711 | struct uploaded_tp *uploaded_tps = NULL, *utp; | |
2712 | struct uploaded_tsv *uploaded_tsvs = NULL, *utsv; | |
2713 | int a; | |
3149d8c1 | 2714 | char *act; |
00bf0b85 SS |
2715 | LONGEST gotten = 0; |
2716 | ULONGEST offset = 0; | |
2717 | #define MAX_TRACE_UPLOAD 2000 | |
2718 | gdb_byte buf[MAX_TRACE_UPLOAD]; | |
98e03262 | 2719 | int written; |
00bf0b85 | 2720 | |
00bf0b85 SS |
2721 | /* If the target is to save the data to a file on its own, then just |
2722 | send the command and be done with it. */ | |
2723 | if (target_does_save) | |
2724 | { | |
2725 | err = target_save_trace_data (filename); | |
2726 | if (err < 0) | |
2727 | error (_("Target failed to save trace data to '%s'."), | |
2728 | filename); | |
2729 | return; | |
2730 | } | |
2731 | ||
2732 | /* Get the trace status first before opening the file, so if the | |
2733 | target is losing, we can get out without touching files. */ | |
2734 | status = target_get_trace_status (ts); | |
2735 | ||
011aacb0 | 2736 | pathname = tilde_expand (filename); |
00bf0b85 SS |
2737 | cleanup = make_cleanup (xfree, pathname); |
2738 | ||
105c2d85 | 2739 | fp = fopen (pathname, "wb"); |
00bf0b85 SS |
2740 | if (!fp) |
2741 | error (_("Unable to open file '%s' for saving trace data (%s)"), | |
011aacb0 | 2742 | filename, safe_strerror (errno)); |
00bf0b85 SS |
2743 | make_cleanup_fclose (fp); |
2744 | ||
2745 | /* Write a file header, with a high-bit-set char to indicate a | |
2746 | binary file, plus a hint as what this file is, and a version | |
2747 | number in case of future needs. */ | |
98e03262 | 2748 | written = fwrite ("\x7fTRACE0\n", 8, 1, fp); |
409873ef | 2749 | if (written < 1) |
98e03262 | 2750 | perror_with_name (pathname); |
00bf0b85 SS |
2751 | |
2752 | /* Write descriptive info. */ | |
2753 | ||
2754 | /* Write out the size of a register block. */ | |
2755 | fprintf (fp, "R %x\n", trace_regblock_size); | |
2756 | ||
2757 | /* Write out status of the tracing run (aka "tstatus" info). */ | |
6c28cbf2 SS |
2758 | fprintf (fp, "status %c;%s", |
2759 | (ts->running ? '1' : '0'), stop_reason_names[ts->stop_reason]); | |
6c28cbf2 SS |
2760 | if (ts->stop_reason == tracepoint_error) |
2761 | { | |
2762 | char *buf = (char *) alloca (strlen (ts->error_desc) * 2 + 1); | |
5d502164 | 2763 | |
6c28cbf2 | 2764 | bin2hex ((gdb_byte *) ts->error_desc, buf, 0); |
610197fd | 2765 | fprintf (fp, ":%s", buf); |
6c28cbf2 SS |
2766 | } |
2767 | fprintf (fp, ":%x", ts->stopping_tracepoint); | |
4daf5ac0 SS |
2768 | if (ts->traceframe_count >= 0) |
2769 | fprintf (fp, ";tframes:%x", ts->traceframe_count); | |
2770 | if (ts->traceframes_created >= 0) | |
2771 | fprintf (fp, ";tcreated:%x", ts->traceframes_created); | |
2772 | if (ts->buffer_free >= 0) | |
2773 | fprintf (fp, ";tfree:%x", ts->buffer_free); | |
2774 | if (ts->buffer_size >= 0) | |
2775 | fprintf (fp, ";tsize:%x", ts->buffer_size); | |
33da3f1c SS |
2776 | if (ts->disconnected_tracing) |
2777 | fprintf (fp, ";disconn:%x", ts->disconnected_tracing); | |
2778 | if (ts->circular_buffer) | |
2779 | fprintf (fp, ";circular:%x", ts->circular_buffer); | |
4daf5ac0 | 2780 | fprintf (fp, "\n"); |
00bf0b85 SS |
2781 | |
2782 | /* Note that we want to upload tracepoints and save those, rather | |
2783 | than simply writing out the local ones, because the user may have | |
2784 | changed tracepoints in GDB in preparation for a future tracing | |
2785 | run, or maybe just mass-deleted all types of breakpoints as part | |
2786 | of cleaning up. So as not to contaminate the session, leave the | |
2787 | data in its uploaded form, don't make into real tracepoints. */ | |
2788 | ||
2789 | /* Get trace state variables first, they may be checked when parsing | |
2790 | uploaded commands. */ | |
2791 | ||
2792 | target_upload_trace_state_variables (&uploaded_tsvs); | |
2793 | ||
2794 | for (utsv = uploaded_tsvs; utsv; utsv = utsv->next) | |
2795 | { | |
2796 | char *buf = ""; | |
2797 | ||
2798 | if (utsv->name) | |
2799 | { | |
2800 | buf = (char *) xmalloc (strlen (utsv->name) * 2 + 1); | |
2801 | bin2hex ((gdb_byte *) (utsv->name), buf, 0); | |
2802 | } | |
2803 | ||
2804 | fprintf (fp, "tsv %x:%s:%x:%s\n", | |
2805 | utsv->number, phex_nz (utsv->initial_value, 8), | |
2806 | utsv->builtin, buf); | |
2807 | ||
2808 | if (utsv->name) | |
2809 | xfree (buf); | |
2810 | } | |
2811 | ||
2812 | free_uploaded_tsvs (&uploaded_tsvs); | |
2813 | ||
2814 | target_upload_tracepoints (&uploaded_tps); | |
2815 | ||
2816 | for (utp = uploaded_tps; utp; utp = utp->next) | |
2817 | { | |
2818 | fprintf (fp, "tp T%x:%s:%c:%x:%x", | |
2819 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), | |
2820 | (utp->enabled ? 'E' : 'D'), utp->step, utp->pass); | |
2821 | if (utp->type == bp_fast_tracepoint) | |
2822 | fprintf (fp, ":F%x", utp->orig_size); | |
2823 | if (utp->cond) | |
2824 | fprintf (fp, ":X%x,%s", (unsigned int) strlen (utp->cond) / 2, | |
2825 | utp->cond); | |
2826 | fprintf (fp, "\n"); | |
3149d8c1 | 2827 | for (a = 0; VEC_iterate (char_ptr, utp->actions, a, act); ++a) |
00bf0b85 | 2828 | fprintf (fp, "tp A%x:%s:%s\n", |
3149d8c1 | 2829 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), act); |
0a2a54b8 | 2830 | for (a = 0; VEC_iterate (char_ptr, utp->step_actions, a, act); ++a) |
00bf0b85 | 2831 | fprintf (fp, "tp S%x:%s:%s\n", |
3149d8c1 | 2832 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), act); |
409873ef SS |
2833 | if (utp->at_string) |
2834 | { | |
2835 | encode_source_string (utp->number, utp->addr, | |
2836 | "at", utp->at_string, buf, MAX_TRACE_UPLOAD); | |
2837 | fprintf (fp, "tp Z%s\n", buf); | |
2838 | } | |
2839 | if (utp->cond_string) | |
2840 | { | |
2841 | encode_source_string (utp->number, utp->addr, | |
3e43a32a MS |
2842 | "cond", utp->cond_string, |
2843 | buf, MAX_TRACE_UPLOAD); | |
409873ef SS |
2844 | fprintf (fp, "tp Z%s\n", buf); |
2845 | } | |
3149d8c1 | 2846 | for (a = 0; VEC_iterate (char_ptr, utp->cmd_strings, a, act); ++a) |
409873ef | 2847 | { |
3149d8c1 | 2848 | encode_source_string (utp->number, utp->addr, "cmd", act, |
409873ef SS |
2849 | buf, MAX_TRACE_UPLOAD); |
2850 | fprintf (fp, "tp Z%s\n", buf); | |
2851 | } | |
00bf0b85 SS |
2852 | } |
2853 | ||
2854 | free_uploaded_tps (&uploaded_tps); | |
2855 | ||
2856 | /* Mark the end of the definition section. */ | |
2857 | fprintf (fp, "\n"); | |
2858 | ||
2859 | /* Get and write the trace data proper. We ask for big blocks, in | |
2860 | the hopes of efficiency, but will take less if the target has | |
2861 | packet size limitations or some such. */ | |
2862 | while (1) | |
2863 | { | |
2864 | gotten = target_get_raw_trace_data (buf, offset, MAX_TRACE_UPLOAD); | |
2865 | if (gotten < 0) | |
2866 | error (_("Failure to get requested trace buffer data")); | |
2867 | /* No more data is forthcoming, we're done. */ | |
2868 | if (gotten == 0) | |
2869 | break; | |
98e03262 | 2870 | written = fwrite (buf, gotten, 1, fp); |
409873ef | 2871 | if (written < 1) |
98e03262 | 2872 | perror_with_name (pathname); |
00bf0b85 SS |
2873 | offset += gotten; |
2874 | } | |
2875 | ||
409873ef | 2876 | /* Mark the end of trace data. (We know that gotten is 0 at this point.) */ |
98e03262 | 2877 | written = fwrite (&gotten, 4, 1, fp); |
409873ef | 2878 | if (written < 1) |
98e03262 | 2879 | perror_with_name (pathname); |
00bf0b85 SS |
2880 | |
2881 | do_cleanups (cleanup); | |
011aacb0 VP |
2882 | } |
2883 | ||
2884 | static void | |
2885 | trace_save_command (char *args, int from_tty) | |
2886 | { | |
2887 | int target_does_save = 0; | |
2888 | char **argv; | |
2889 | char *filename = NULL; | |
2890 | struct cleanup *back_to; | |
2891 | ||
2892 | if (args == NULL) | |
2893 | error_no_arg (_("file in which to save trace data")); | |
2894 | ||
2895 | argv = gdb_buildargv (args); | |
2896 | back_to = make_cleanup_freeargv (argv); | |
2897 | ||
2898 | for (; *argv; ++argv) | |
2899 | { | |
2900 | if (strcmp (*argv, "-r") == 0) | |
2901 | target_does_save = 1; | |
2902 | else if (**argv == '-') | |
2903 | error (_("unknown option `%s'"), *argv); | |
2904 | else | |
2905 | filename = *argv; | |
2906 | } | |
2907 | ||
2908 | if (!filename) | |
2909 | error_no_arg (_("file in which to save trace data")); | |
2910 | ||
2911 | trace_save (filename, target_does_save); | |
2912 | ||
00bf0b85 SS |
2913 | if (from_tty) |
2914 | printf_filtered (_("Trace data saved to file '%s'.\n"), args); | |
011aacb0 VP |
2915 | |
2916 | do_cleanups (back_to); | |
00bf0b85 SS |
2917 | } |
2918 | ||
d5551862 SS |
2919 | /* Tell the target what to do with an ongoing tracing run if GDB |
2920 | disconnects for some reason. */ | |
2921 | ||
2922 | void | |
2923 | send_disconnected_tracing_value (int value) | |
2924 | { | |
35b1e5cc | 2925 | target_set_disconnected_tracing (value); |
d5551862 SS |
2926 | } |
2927 | ||
2928 | static void | |
2929 | set_disconnected_tracing (char *args, int from_tty, | |
2930 | struct cmd_list_element *c) | |
2931 | { | |
2932 | send_disconnected_tracing_value (disconnected_tracing); | |
2933 | } | |
2934 | ||
4daf5ac0 SS |
2935 | static void |
2936 | set_circular_trace_buffer (char *args, int from_tty, | |
2937 | struct cmd_list_element *c) | |
2938 | { | |
2939 | target_set_circular_trace_buffer (circular_trace_buffer); | |
2940 | } | |
2941 | ||
c906108c SS |
2942 | /* Convert the memory pointed to by mem into hex, placing result in buf. |
2943 | * Return a pointer to the last char put in buf (null) | |
2944 | * "stolen" from sparc-stub.c | |
2945 | */ | |
2946 | ||
c5aa993b | 2947 | static const char hexchars[] = "0123456789abcdef"; |
c906108c | 2948 | |
47b667de AC |
2949 | static char * |
2950 | mem2hex (gdb_byte *mem, char *buf, int count) | |
c906108c | 2951 | { |
47b667de | 2952 | gdb_byte ch; |
c906108c SS |
2953 | |
2954 | while (count-- > 0) | |
2955 | { | |
2956 | ch = *mem++; | |
2957 | ||
2958 | *buf++ = hexchars[ch >> 4]; | |
2959 | *buf++ = hexchars[ch & 0xf]; | |
2960 | } | |
2961 | ||
2962 | *buf = 0; | |
2963 | ||
2964 | return buf; | |
2965 | } | |
2966 | ||
c5aa993b | 2967 | int |
fba45db2 | 2968 | get_traceframe_number (void) |
c906108c | 2969 | { |
c5aa993b | 2970 | return traceframe_number; |
c906108c SS |
2971 | } |
2972 | ||
06cd862c PA |
2973 | /* Make the traceframe NUM be the current trace frame. Does nothing |
2974 | if NUM is already current. */ | |
2975 | ||
2976 | void | |
e6e4e701 | 2977 | set_current_traceframe (int num) |
06cd862c PA |
2978 | { |
2979 | int newnum; | |
2980 | ||
2981 | if (traceframe_number == num) | |
2982 | { | |
2983 | /* Nothing to do. */ | |
2984 | return; | |
2985 | } | |
2986 | ||
2987 | newnum = target_trace_find (tfind_number, num, 0, 0, NULL); | |
2988 | ||
2989 | if (newnum != num) | |
2990 | warning (_("could not change traceframe")); | |
2991 | ||
2992 | traceframe_number = newnum; | |
2993 | ||
2994 | /* Changing the traceframe changes our view of registers and of the | |
2995 | frame chain. */ | |
2996 | registers_changed (); | |
b3b9301e PA |
2997 | |
2998 | clear_traceframe_info (); | |
06cd862c PA |
2999 | } |
3000 | ||
e6e4e701 PA |
3001 | /* Make the traceframe NUM be the current trace frame, and do nothing |
3002 | more. */ | |
3003 | ||
3004 | void | |
3005 | set_traceframe_number (int num) | |
3006 | { | |
3007 | traceframe_number = num; | |
3008 | } | |
3009 | ||
06cd862c PA |
3010 | /* A cleanup used when switching away and back from tfind mode. */ |
3011 | ||
3012 | struct current_traceframe_cleanup | |
3013 | { | |
3014 | /* The traceframe we were inspecting. */ | |
3015 | int traceframe_number; | |
3016 | }; | |
3017 | ||
3018 | static void | |
3019 | do_restore_current_traceframe_cleanup (void *arg) | |
3020 | { | |
3021 | struct current_traceframe_cleanup *old = arg; | |
3022 | ||
e6e4e701 | 3023 | set_current_traceframe (old->traceframe_number); |
06cd862c PA |
3024 | } |
3025 | ||
3026 | static void | |
3027 | restore_current_traceframe_cleanup_dtor (void *arg) | |
3028 | { | |
3029 | struct current_traceframe_cleanup *old = arg; | |
3030 | ||
3031 | xfree (old); | |
3032 | } | |
3033 | ||
3034 | struct cleanup * | |
3035 | make_cleanup_restore_current_traceframe (void) | |
3036 | { | |
3037 | struct current_traceframe_cleanup *old; | |
3038 | ||
3039 | old = xmalloc (sizeof (struct current_traceframe_cleanup)); | |
3040 | old->traceframe_number = traceframe_number; | |
3041 | ||
3042 | return make_cleanup_dtor (do_restore_current_traceframe_cleanup, old, | |
3043 | restore_current_traceframe_cleanup_dtor); | |
3044 | } | |
00bf0b85 | 3045 | |
e6e4e701 PA |
3046 | struct cleanup * |
3047 | make_cleanup_restore_traceframe_number (void) | |
3048 | { | |
3049 | return make_cleanup_restore_integer (&traceframe_number); | |
3050 | } | |
3051 | ||
00bf0b85 SS |
3052 | /* Given a number and address, return an uploaded tracepoint with that |
3053 | number, creating if necessary. */ | |
3054 | ||
3055 | struct uploaded_tp * | |
3056 | get_uploaded_tp (int num, ULONGEST addr, struct uploaded_tp **utpp) | |
3057 | { | |
3058 | struct uploaded_tp *utp; | |
3059 | ||
3060 | for (utp = *utpp; utp; utp = utp->next) | |
3061 | if (utp->number == num && utp->addr == addr) | |
3062 | return utp; | |
3063 | utp = (struct uploaded_tp *) xmalloc (sizeof (struct uploaded_tp)); | |
3064 | memset (utp, 0, sizeof (struct uploaded_tp)); | |
3065 | utp->number = num; | |
3066 | utp->addr = addr; | |
3149d8c1 SS |
3067 | utp->actions = NULL; |
3068 | utp->step_actions = NULL; | |
3069 | utp->cmd_strings = NULL; | |
00bf0b85 SS |
3070 | utp->next = *utpp; |
3071 | *utpp = utp; | |
3072 | return utp; | |
3073 | } | |
3074 | ||
3075 | static void | |
3076 | free_uploaded_tps (struct uploaded_tp **utpp) | |
3077 | { | |
3078 | struct uploaded_tp *next_one; | |
3079 | ||
3080 | while (*utpp) | |
3081 | { | |
3082 | next_one = (*utpp)->next; | |
3083 | xfree (*utpp); | |
3084 | *utpp = next_one; | |
3085 | } | |
3086 | } | |
3087 | ||
3088 | /* Given a number and address, return an uploaded tracepoint with that | |
3089 | number, creating if necessary. */ | |
3090 | ||
3091 | struct uploaded_tsv * | |
3092 | get_uploaded_tsv (int num, struct uploaded_tsv **utsvp) | |
3093 | { | |
3094 | struct uploaded_tsv *utsv; | |
3095 | ||
3096 | for (utsv = *utsvp; utsv; utsv = utsv->next) | |
3097 | if (utsv->number == num) | |
3098 | return utsv; | |
3099 | utsv = (struct uploaded_tsv *) xmalloc (sizeof (struct uploaded_tsv)); | |
3100 | memset (utsv, 0, sizeof (struct uploaded_tsv)); | |
3101 | utsv->number = num; | |
3102 | utsv->next = *utsvp; | |
3103 | *utsvp = utsv; | |
3104 | return utsv; | |
3105 | } | |
3106 | ||
3107 | static void | |
3108 | free_uploaded_tsvs (struct uploaded_tsv **utsvp) | |
3109 | { | |
3110 | struct uploaded_tsv *next_one; | |
3111 | ||
3112 | while (*utsvp) | |
3113 | { | |
3114 | next_one = (*utsvp)->next; | |
3115 | xfree (*utsvp); | |
3116 | *utsvp = next_one; | |
3117 | } | |
3118 | } | |
3119 | ||
3120 | /* Look for an existing tracepoint that seems similar enough to the | |
3121 | uploaded one. Enablement isn't compared, because the user can | |
3122 | toggle that freely, and may have done so in anticipation of the | |
3123 | next trace run. */ | |
3124 | ||
3125 | struct breakpoint * | |
3126 | find_matching_tracepoint (struct uploaded_tp *utp) | |
3127 | { | |
3128 | VEC(breakpoint_p) *tp_vec = all_tracepoints (); | |
3129 | int ix; | |
3130 | struct breakpoint *t; | |
3131 | struct bp_location *loc; | |
3132 | ||
3133 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
3134 | { | |
3135 | if (t->type == utp->type | |
3136 | && t->step_count == utp->step | |
3137 | && t->pass_count == utp->pass | |
c378eb4e | 3138 | /* FIXME also test conditionals and actions. */ |
00bf0b85 SS |
3139 | ) |
3140 | { | |
3141 | /* Scan the locations for an address match. */ | |
3142 | for (loc = t->loc; loc; loc = loc->next) | |
3143 | { | |
3144 | if (loc->address == utp->addr) | |
3145 | return t; | |
3146 | } | |
3147 | } | |
3148 | } | |
3149 | return NULL; | |
3150 | } | |
3151 | ||
3152 | /* Given a list of tracepoints uploaded from a target, attempt to | |
3153 | match them up with existing tracepoints, and create new ones if not | |
3154 | found. */ | |
3155 | ||
3156 | void | |
3157 | merge_uploaded_tracepoints (struct uploaded_tp **uploaded_tps) | |
3158 | { | |
3159 | struct uploaded_tp *utp; | |
3160 | struct breakpoint *t; | |
3161 | ||
3162 | /* Look for GDB tracepoints that match up with our uploaded versions. */ | |
3163 | for (utp = *uploaded_tps; utp; utp = utp->next) | |
3164 | { | |
3165 | t = find_matching_tracepoint (utp); | |
3166 | if (t) | |
3e43a32a MS |
3167 | printf_filtered (_("Assuming tracepoint %d is same " |
3168 | "as target's tracepoint %d at %s.\n"), | |
3169 | t->number, utp->number, | |
3170 | paddress (get_current_arch (), utp->addr)); | |
00bf0b85 SS |
3171 | else |
3172 | { | |
3173 | t = create_tracepoint_from_upload (utp); | |
3174 | if (t) | |
3e43a32a MS |
3175 | printf_filtered (_("Created tracepoint %d for " |
3176 | "target's tracepoint %d at %s.\n"), | |
3177 | t->number, utp->number, | |
3178 | paddress (get_current_arch (), utp->addr)); | |
00bf0b85 | 3179 | else |
3e43a32a MS |
3180 | printf_filtered (_("Failed to create tracepoint for target's " |
3181 | "tracepoint %d at %s, skipping it.\n"), | |
3182 | utp->number, | |
3183 | paddress (get_current_arch (), utp->addr)); | |
00bf0b85 SS |
3184 | } |
3185 | /* Whether found or created, record the number used by the | |
3186 | target, to help with mapping target tracepoints back to their | |
3187 | counterparts here. */ | |
3188 | if (t) | |
3189 | t->number_on_target = utp->number; | |
3190 | } | |
3191 | ||
3192 | free_uploaded_tps (uploaded_tps); | |
3193 | } | |
3194 | ||
3195 | /* Trace state variables don't have much to identify them beyond their | |
3196 | name, so just use that to detect matches. */ | |
3197 | ||
3198 | struct trace_state_variable * | |
3199 | find_matching_tsv (struct uploaded_tsv *utsv) | |
3200 | { | |
3201 | if (!utsv->name) | |
3202 | return NULL; | |
3203 | ||
3204 | return find_trace_state_variable (utsv->name); | |
3205 | } | |
3206 | ||
3207 | struct trace_state_variable * | |
3208 | create_tsv_from_upload (struct uploaded_tsv *utsv) | |
3209 | { | |
3210 | const char *namebase; | |
3211 | char buf[20]; | |
3212 | int try_num = 0; | |
3213 | struct trace_state_variable *tsv; | |
3214 | ||
3215 | if (utsv->name) | |
3216 | { | |
3217 | namebase = utsv->name; | |
3218 | sprintf (buf, "%s", namebase); | |
3219 | } | |
3220 | else | |
3221 | { | |
3222 | namebase = "__tsv"; | |
3223 | sprintf (buf, "%s_%d", namebase, try_num++); | |
3224 | } | |
3225 | ||
3226 | /* Fish for a name that is not in use. */ | |
c378eb4e | 3227 | /* (should check against all internal vars?) */ |
00bf0b85 SS |
3228 | while (find_trace_state_variable (buf)) |
3229 | sprintf (buf, "%s_%d", namebase, try_num++); | |
3230 | ||
3231 | /* We have an available name, create the variable. */ | |
3232 | tsv = create_trace_state_variable (xstrdup (buf)); | |
3233 | tsv->initial_value = utsv->initial_value; | |
3234 | tsv->builtin = utsv->builtin; | |
3235 | ||
3236 | return tsv; | |
3237 | } | |
3238 | ||
3239 | /* Given a list of uploaded trace state variables, try to match them | |
3240 | up with existing variables, or create additional ones. */ | |
3241 | ||
3242 | void | |
3243 | merge_uploaded_trace_state_variables (struct uploaded_tsv **uploaded_tsvs) | |
3244 | { | |
3245 | int ix; | |
3246 | struct uploaded_tsv *utsv; | |
3247 | struct trace_state_variable *tsv; | |
3248 | int highest; | |
3249 | ||
3250 | /* Most likely some numbers will have to be reassigned as part of | |
3251 | the merge, so clear them all in anticipation. */ | |
3252 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3253 | tsv->number = 0; | |
3254 | ||
3255 | for (utsv = *uploaded_tsvs; utsv; utsv = utsv->next) | |
3256 | { | |
3257 | tsv = find_matching_tsv (utsv); | |
3258 | if (tsv) | |
417b5110 DJ |
3259 | { |
3260 | if (info_verbose) | |
3e43a32a MS |
3261 | printf_filtered (_("Assuming trace state variable $%s " |
3262 | "is same as target's variable %d.\n"), | |
417b5110 DJ |
3263 | tsv->name, utsv->number); |
3264 | } | |
00bf0b85 SS |
3265 | else |
3266 | { | |
3267 | tsv = create_tsv_from_upload (utsv); | |
417b5110 | 3268 | if (info_verbose) |
3e43a32a MS |
3269 | printf_filtered (_("Created trace state variable " |
3270 | "$%s for target's variable %d.\n"), | |
417b5110 | 3271 | tsv->name, utsv->number); |
00bf0b85 SS |
3272 | } |
3273 | /* Give precedence to numberings that come from the target. */ | |
3274 | if (tsv) | |
3275 | tsv->number = utsv->number; | |
3276 | } | |
3277 | ||
3278 | /* Renumber everything that didn't get a target-assigned number. */ | |
3279 | highest = 0; | |
3280 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3281 | if (tsv->number > highest) | |
3282 | highest = tsv->number; | |
3283 | ||
3284 | ++highest; | |
3285 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3286 | if (tsv->number == 0) | |
3287 | tsv->number = highest++; | |
3288 | ||
3289 | free_uploaded_tsvs (uploaded_tsvs); | |
3290 | } | |
3291 | ||
3292 | /* target tfile command */ | |
3293 | ||
3294 | struct target_ops tfile_ops; | |
3295 | ||
3296 | /* Fill in tfile_ops with its defined operations and properties. */ | |
3297 | ||
3298 | #define TRACE_HEADER_SIZE 8 | |
3299 | ||
98e03262 | 3300 | char *trace_filename; |
00bf0b85 SS |
3301 | int trace_fd = -1; |
3302 | off_t trace_frames_offset; | |
3303 | off_t cur_offset; | |
e6e4e701 | 3304 | int cur_traceframe_number; |
00bf0b85 SS |
3305 | int cur_data_size; |
3306 | int trace_regblock_size; | |
3307 | ||
3308 | static void tfile_interp_line (char *line, | |
3309 | struct uploaded_tp **utpp, | |
3310 | struct uploaded_tsv **utsvp); | |
3311 | ||
9f41c731 PA |
3312 | /* Read SIZE bytes into READBUF from the trace frame, starting at |
3313 | TRACE_FD's current position. Note that this call `read' | |
3314 | underneath, hence it advances the file's seek position. Throws an | |
3315 | error if the `read' syscall fails, or less than SIZE bytes are | |
3316 | read. */ | |
3317 | ||
3318 | static void | |
3319 | tfile_read (gdb_byte *readbuf, int size) | |
3320 | { | |
3321 | int gotten; | |
3322 | ||
3323 | gotten = read (trace_fd, readbuf, size); | |
3324 | if (gotten < 0) | |
3325 | perror_with_name (trace_filename); | |
3326 | else if (gotten < size) | |
3327 | error (_("Premature end of file while reading trace file")); | |
3328 | } | |
3329 | ||
00bf0b85 SS |
3330 | static void |
3331 | tfile_open (char *filename, int from_tty) | |
3332 | { | |
3333 | char *temp; | |
3334 | struct cleanup *old_chain; | |
3335 | int flags; | |
3336 | int scratch_chan; | |
3337 | char header[TRACE_HEADER_SIZE]; | |
c378eb4e | 3338 | char linebuf[1000]; /* Should be max remote packet size or so. */ |
00bf0b85 | 3339 | char byte; |
9f41c731 | 3340 | int bytes, i; |
00bf0b85 SS |
3341 | struct trace_status *ts; |
3342 | struct uploaded_tp *uploaded_tps = NULL; | |
3343 | struct uploaded_tsv *uploaded_tsvs = NULL; | |
3344 | ||
3345 | target_preopen (from_tty); | |
3346 | if (!filename) | |
3347 | error (_("No trace file specified.")); | |
3348 | ||
3349 | filename = tilde_expand (filename); | |
3350 | if (!IS_ABSOLUTE_PATH(filename)) | |
3351 | { | |
c4f7c687 | 3352 | temp = concat (current_directory, "/", filename, (char *) NULL); |
00bf0b85 SS |
3353 | xfree (filename); |
3354 | filename = temp; | |
3355 | } | |
3356 | ||
3357 | old_chain = make_cleanup (xfree, filename); | |
3358 | ||
3359 | flags = O_BINARY | O_LARGEFILE; | |
3360 | flags |= O_RDONLY; | |
3361 | scratch_chan = open (filename, flags, 0); | |
3362 | if (scratch_chan < 0) | |
3363 | perror_with_name (filename); | |
3364 | ||
3365 | /* Looks semi-reasonable. Toss the old trace file and work on the new. */ | |
3366 | ||
c378eb4e | 3367 | discard_cleanups (old_chain); /* Don't free filename any more. */ |
00bf0b85 SS |
3368 | unpush_target (&tfile_ops); |
3369 | ||
3370 | push_target (&tfile_ops); | |
00bf0b85 | 3371 | |
98e03262 | 3372 | trace_filename = xstrdup (filename); |
00bf0b85 SS |
3373 | trace_fd = scratch_chan; |
3374 | ||
3375 | bytes = 0; | |
3376 | /* Read the file header and test for validity. */ | |
9f41c731 | 3377 | tfile_read ((gdb_byte *) &header, TRACE_HEADER_SIZE); |
98e03262 | 3378 | |
00bf0b85 SS |
3379 | bytes += TRACE_HEADER_SIZE; |
3380 | if (!(header[0] == 0x7f | |
3381 | && (strncmp (header + 1, "TRACE0\n", 7) == 0))) | |
3382 | error (_("File is not a valid trace file.")); | |
3383 | ||
3384 | trace_regblock_size = 0; | |
3385 | ts = current_trace_status (); | |
3386 | /* We know we're working with a file. */ | |
3387 | ts->from_file = 1; | |
3388 | /* Set defaults in case there is no status line. */ | |
3389 | ts->running_known = 0; | |
3390 | ts->stop_reason = trace_stop_reason_unknown; | |
3391 | ts->traceframe_count = -1; | |
3392 | ts->buffer_free = 0; | |
33da3f1c SS |
3393 | ts->disconnected_tracing = 0; |
3394 | ts->circular_buffer = 0; | |
00bf0b85 | 3395 | |
e6e4e701 PA |
3396 | cur_traceframe_number = -1; |
3397 | ||
00bf0b85 SS |
3398 | /* Read through a section of newline-terminated lines that |
3399 | define things like tracepoints. */ | |
3400 | i = 0; | |
3401 | while (1) | |
3402 | { | |
9f41c731 | 3403 | tfile_read (&byte, 1); |
98e03262 | 3404 | |
00bf0b85 SS |
3405 | ++bytes; |
3406 | if (byte == '\n') | |
3407 | { | |
3408 | /* Empty line marks end of the definition section. */ | |
3409 | if (i == 0) | |
3410 | break; | |
3411 | linebuf[i] = '\0'; | |
3412 | i = 0; | |
3413 | tfile_interp_line (linebuf, &uploaded_tps, &uploaded_tsvs); | |
3414 | } | |
3415 | else | |
3416 | linebuf[i++] = byte; | |
3417 | if (i >= 1000) | |
3418 | error (_("Excessively long lines in trace file")); | |
3419 | } | |
3420 | ||
3421 | /* Add the file's tracepoints and variables into the current mix. */ | |
3422 | ||
10ef8d6a PA |
3423 | /* Get trace state variables first, they may be checked when parsing |
3424 | uploaded commands. */ | |
00bf0b85 SS |
3425 | merge_uploaded_trace_state_variables (&uploaded_tsvs); |
3426 | ||
10ef8d6a PA |
3427 | merge_uploaded_tracepoints (&uploaded_tps); |
3428 | ||
00bf0b85 SS |
3429 | /* Record the starting offset of the binary trace data. */ |
3430 | trace_frames_offset = bytes; | |
3431 | ||
3432 | /* If we don't have a blocksize, we can't interpret the | |
3433 | traceframes. */ | |
3434 | if (trace_regblock_size == 0) | |
3435 | error (_("No register block size recorded in trace file")); | |
3436 | if (ts->traceframe_count <= 0) | |
3437 | { | |
a73c6dcd | 3438 | warning (_("No traceframes present in this file.")); |
00bf0b85 SS |
3439 | return; |
3440 | } | |
3441 | ||
3442 | #define TFILE_PID (1) | |
3443 | inferior_appeared (current_inferior (), TFILE_PID); | |
3444 | inferior_ptid = pid_to_ptid (TFILE_PID); | |
3445 | add_thread_silent (inferior_ptid); | |
3446 | ||
3447 | post_create_inferior (&tfile_ops, from_tty); | |
3448 | ||
3449 | #if 0 | |
c378eb4e | 3450 | /* FIXME this will get defined in MI patch submission. */ |
00bf0b85 SS |
3451 | tfind_1 (tfind_number, 0, 0, 0, 0); |
3452 | #endif | |
3453 | } | |
3454 | ||
3455 | /* Interpret the given line from the definitions part of the trace | |
3456 | file. */ | |
3457 | ||
3458 | static void | |
3459 | tfile_interp_line (char *line, | |
3460 | struct uploaded_tp **utpp, struct uploaded_tsv **utsvp) | |
3461 | { | |
3462 | char *p = line; | |
3463 | ||
3464 | if (strncmp (p, "R ", strlen ("R ")) == 0) | |
3465 | { | |
3466 | p += strlen ("R "); | |
3467 | trace_regblock_size = strtol (p, &p, 16); | |
3468 | } | |
3469 | else if (strncmp (p, "status ", strlen ("status ")) == 0) | |
3470 | { | |
3471 | p += strlen ("status "); | |
3472 | parse_trace_status (p, current_trace_status ()); | |
3473 | } | |
3474 | else if (strncmp (p, "tp ", strlen ("tp ")) == 0) | |
3475 | { | |
3476 | p += strlen ("tp "); | |
3477 | parse_tracepoint_definition (p, utpp); | |
3478 | } | |
3479 | else if (strncmp (p, "tsv ", strlen ("tsv ")) == 0) | |
3480 | { | |
3481 | p += strlen ("tsv "); | |
3482 | parse_tsv_definition (p, utsvp); | |
3483 | } | |
3484 | else | |
a73c6dcd | 3485 | warning (_("Ignoring trace file definition \"%s\""), line); |
00bf0b85 SS |
3486 | } |
3487 | ||
3488 | /* Parse the part of trace status syntax that is shared between | |
3489 | the remote protocol and the trace file reader. */ | |
3490 | ||
00bf0b85 SS |
3491 | void |
3492 | parse_trace_status (char *line, struct trace_status *ts) | |
3493 | { | |
6c28cbf2 | 3494 | char *p = line, *p1, *p2, *p_temp; |
00bf0b85 SS |
3495 | ULONGEST val; |
3496 | ||
3497 | ts->running_known = 1; | |
3498 | ts->running = (*p++ == '1'); | |
3499 | ts->stop_reason = trace_stop_reason_unknown; | |
a609a0c8 PA |
3500 | xfree (ts->error_desc); |
3501 | ts->error_desc = NULL; | |
4daf5ac0 SS |
3502 | ts->traceframe_count = -1; |
3503 | ts->traceframes_created = -1; | |
3504 | ts->buffer_free = -1; | |
3505 | ts->buffer_size = -1; | |
33da3f1c SS |
3506 | ts->disconnected_tracing = 0; |
3507 | ts->circular_buffer = 0; | |
4daf5ac0 | 3508 | |
00bf0b85 SS |
3509 | while (*p++) |
3510 | { | |
3511 | p1 = strchr (p, ':'); | |
3512 | if (p1 == NULL) | |
3513 | error (_("Malformed trace status, at %s\n\ | |
3514 | Status line: '%s'\n"), p, line); | |
3515 | if (strncmp (p, stop_reason_names[trace_buffer_full], p1 - p) == 0) | |
3516 | { | |
3517 | p = unpack_varlen_hex (++p1, &val); | |
3518 | ts->stop_reason = trace_buffer_full; | |
3519 | } | |
3520 | else if (strncmp (p, stop_reason_names[trace_never_run], p1 - p) == 0) | |
3521 | { | |
3522 | p = unpack_varlen_hex (++p1, &val); | |
3523 | ts->stop_reason = trace_never_run; | |
3524 | } | |
3e43a32a MS |
3525 | else if (strncmp (p, stop_reason_names[tracepoint_passcount], |
3526 | p1 - p) == 0) | |
00bf0b85 SS |
3527 | { |
3528 | p = unpack_varlen_hex (++p1, &val); | |
3529 | ts->stop_reason = tracepoint_passcount; | |
3530 | ts->stopping_tracepoint = val; | |
3531 | } | |
3532 | else if (strncmp (p, stop_reason_names[tstop_command], p1 - p) == 0) | |
3533 | { | |
3534 | p = unpack_varlen_hex (++p1, &val); | |
3535 | ts->stop_reason = tstop_command; | |
3536 | } | |
33da3f1c SS |
3537 | else if (strncmp (p, stop_reason_names[trace_disconnected], p1 - p) == 0) |
3538 | { | |
3539 | p = unpack_varlen_hex (++p1, &val); | |
3540 | ts->stop_reason = trace_disconnected; | |
3541 | } | |
6c28cbf2 SS |
3542 | else if (strncmp (p, stop_reason_names[tracepoint_error], p1 - p) == 0) |
3543 | { | |
3544 | p2 = strchr (++p1, ':'); | |
3545 | if (p2 != p1) | |
3546 | { | |
3547 | int end; | |
99b5e152 PA |
3548 | |
3549 | ts->error_desc = xmalloc ((p2 - p1) / 2 + 1); | |
3550 | end = hex2bin (p1, ts->error_desc, (p2 - p1) / 2); | |
6c28cbf2 SS |
3551 | ts->error_desc[end] = '\0'; |
3552 | } | |
a609a0c8 PA |
3553 | else |
3554 | ts->error_desc = xstrdup (""); | |
3555 | ||
6c28cbf2 SS |
3556 | p = unpack_varlen_hex (++p2, &val); |
3557 | ts->stopping_tracepoint = val; | |
3558 | ts->stop_reason = tracepoint_error; | |
3559 | } | |
4daf5ac0 | 3560 | else if (strncmp (p, "tframes", p1 - p) == 0) |
00bf0b85 SS |
3561 | { |
3562 | p = unpack_varlen_hex (++p1, &val); | |
3563 | ts->traceframe_count = val; | |
3564 | } | |
4daf5ac0 SS |
3565 | else if (strncmp (p, "tcreated", p1 - p) == 0) |
3566 | { | |
3567 | p = unpack_varlen_hex (++p1, &val); | |
3568 | ts->traceframes_created = val; | |
3569 | } | |
3570 | else if (strncmp (p, "tfree", p1 - p) == 0) | |
00bf0b85 SS |
3571 | { |
3572 | p = unpack_varlen_hex (++p1, &val); | |
3573 | ts->buffer_free = val; | |
3574 | } | |
4daf5ac0 SS |
3575 | else if (strncmp (p, "tsize", p1 - p) == 0) |
3576 | { | |
3577 | p = unpack_varlen_hex (++p1, &val); | |
3578 | ts->buffer_size = val; | |
3579 | } | |
33da3f1c SS |
3580 | else if (strncmp (p, "disconn", p1 - p) == 0) |
3581 | { | |
3582 | p = unpack_varlen_hex (++p1, &val); | |
3583 | ts->disconnected_tracing = val; | |
3584 | } | |
3585 | else if (strncmp (p, "circular", p1 - p) == 0) | |
3586 | { | |
3587 | p = unpack_varlen_hex (++p1, &val); | |
3588 | ts->circular_buffer = val; | |
3589 | } | |
00bf0b85 SS |
3590 | else |
3591 | { | |
3592 | /* Silently skip unknown optional info. */ | |
3593 | p_temp = strchr (p1 + 1, ';'); | |
3594 | if (p_temp) | |
3595 | p = p_temp; | |
3596 | else | |
3597 | /* Must be at the end. */ | |
3598 | break; | |
3599 | } | |
3600 | } | |
3601 | } | |
3602 | ||
409873ef SS |
3603 | /* Given a line of text defining a part of a tracepoint, parse it into |
3604 | an "uploaded tracepoint". */ | |
00bf0b85 SS |
3605 | |
3606 | void | |
3607 | parse_tracepoint_definition (char *line, struct uploaded_tp **utpp) | |
3608 | { | |
3609 | char *p; | |
3610 | char piece; | |
409873ef | 3611 | ULONGEST num, addr, step, pass, orig_size, xlen, start; |
2a2287c7 | 3612 | int enabled, end; |
00bf0b85 | 3613 | enum bptype type; |
2a2287c7 | 3614 | char *cond, *srctype, *buf; |
00bf0b85 SS |
3615 | struct uploaded_tp *utp = NULL; |
3616 | ||
3617 | p = line; | |
3618 | /* Both tracepoint and action definitions start with the same number | |
3619 | and address sequence. */ | |
3620 | piece = *p++; | |
3621 | p = unpack_varlen_hex (p, &num); | |
3622 | p++; /* skip a colon */ | |
3623 | p = unpack_varlen_hex (p, &addr); | |
3624 | p++; /* skip a colon */ | |
3625 | if (piece == 'T') | |
3626 | { | |
3627 | enabled = (*p++ == 'E'); | |
3628 | p++; /* skip a colon */ | |
3629 | p = unpack_varlen_hex (p, &step); | |
3630 | p++; /* skip a colon */ | |
3631 | p = unpack_varlen_hex (p, &pass); | |
3632 | type = bp_tracepoint; | |
3633 | cond = NULL; | |
3634 | /* Thumb through optional fields. */ | |
3635 | while (*p == ':') | |
3636 | { | |
3637 | p++; /* skip a colon */ | |
3638 | if (*p == 'F') | |
3639 | { | |
3640 | type = bp_fast_tracepoint; | |
3641 | p++; | |
3642 | p = unpack_varlen_hex (p, &orig_size); | |
3643 | } | |
0fb4aa4b PA |
3644 | else if (*p == 'S') |
3645 | { | |
3646 | type = bp_static_tracepoint; | |
3647 | p++; | |
3648 | } | |
00bf0b85 SS |
3649 | else if (*p == 'X') |
3650 | { | |
3651 | p++; | |
3652 | p = unpack_varlen_hex (p, &xlen); | |
3653 | p++; /* skip a comma */ | |
3654 | cond = (char *) xmalloc (2 * xlen + 1); | |
3655 | strncpy (cond, p, 2 * xlen); | |
3656 | cond[2 * xlen] = '\0'; | |
3657 | p += 2 * xlen; | |
3658 | } | |
3659 | else | |
3e43a32a MS |
3660 | warning (_("Unrecognized char '%c' in tracepoint " |
3661 | "definition, skipping rest"), *p); | |
00bf0b85 SS |
3662 | } |
3663 | utp = get_uploaded_tp (num, addr, utpp); | |
3664 | utp->type = type; | |
3665 | utp->enabled = enabled; | |
3666 | utp->step = step; | |
3667 | utp->pass = pass; | |
3668 | utp->cond = cond; | |
3669 | } | |
3670 | else if (piece == 'A') | |
3671 | { | |
3672 | utp = get_uploaded_tp (num, addr, utpp); | |
3149d8c1 | 3673 | VEC_safe_push (char_ptr, utp->actions, xstrdup (p)); |
00bf0b85 SS |
3674 | } |
3675 | else if (piece == 'S') | |
3676 | { | |
3677 | utp = get_uploaded_tp (num, addr, utpp); | |
3149d8c1 | 3678 | VEC_safe_push (char_ptr, utp->step_actions, xstrdup (p)); |
00bf0b85 | 3679 | } |
409873ef SS |
3680 | else if (piece == 'Z') |
3681 | { | |
3682 | /* Parse a chunk of source form definition. */ | |
3683 | utp = get_uploaded_tp (num, addr, utpp); | |
3684 | srctype = p; | |
3685 | p = strchr (p, ':'); | |
3686 | p++; /* skip a colon */ | |
3687 | p = unpack_varlen_hex (p, &start); | |
3688 | p++; /* skip a colon */ | |
3689 | p = unpack_varlen_hex (p, &xlen); | |
3690 | p++; /* skip a colon */ | |
3691 | ||
3692 | buf = alloca (strlen (line)); | |
3693 | ||
3694 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3695 | buf[end] = '\0'; | |
3696 | ||
3697 | if (strncmp (srctype, "at:", strlen ("at:")) == 0) | |
3698 | utp->at_string = xstrdup (buf); | |
3699 | else if (strncmp (srctype, "cond:", strlen ("cond:")) == 0) | |
3700 | utp->cond_string = xstrdup (buf); | |
3701 | else if (strncmp (srctype, "cmd:", strlen ("cmd:")) == 0) | |
3149d8c1 | 3702 | VEC_safe_push (char_ptr, utp->cmd_strings, xstrdup (buf)); |
409873ef | 3703 | } |
00bf0b85 SS |
3704 | else |
3705 | { | |
409873ef SS |
3706 | /* Don't error out, the target might be sending us optional |
3707 | info that we don't care about. */ | |
3708 | warning (_("Unrecognized tracepoint piece '%c', ignoring"), piece); | |
00bf0b85 SS |
3709 | } |
3710 | } | |
3711 | ||
3712 | /* Convert a textual description of a trace state variable into an | |
3713 | uploaded object. */ | |
3714 | ||
3715 | void | |
3716 | parse_tsv_definition (char *line, struct uploaded_tsv **utsvp) | |
3717 | { | |
3718 | char *p, *buf; | |
3719 | ULONGEST num, initval, builtin; | |
3720 | int end; | |
3721 | struct uploaded_tsv *utsv = NULL; | |
3722 | ||
3723 | buf = alloca (strlen (line)); | |
3724 | ||
3725 | p = line; | |
3726 | p = unpack_varlen_hex (p, &num); | |
3727 | p++; /* skip a colon */ | |
3728 | p = unpack_varlen_hex (p, &initval); | |
3729 | p++; /* skip a colon */ | |
3730 | p = unpack_varlen_hex (p, &builtin); | |
3731 | p++; /* skip a colon */ | |
3732 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3733 | buf[end] = '\0'; | |
3734 | ||
3735 | utsv = get_uploaded_tsv (num, utsvp); | |
3736 | utsv->initial_value = initval; | |
3737 | utsv->builtin = builtin; | |
3738 | utsv->name = xstrdup (buf); | |
3739 | } | |
3740 | ||
3741 | /* Close the trace file and generally clean up. */ | |
3742 | ||
3743 | static void | |
3744 | tfile_close (int quitting) | |
3745 | { | |
3746 | int pid; | |
3747 | ||
3748 | if (trace_fd < 0) | |
3749 | return; | |
3750 | ||
3751 | pid = ptid_get_pid (inferior_ptid); | |
c378eb4e | 3752 | inferior_ptid = null_ptid; /* Avoid confusion from thread stuff. */ |
00bf0b85 SS |
3753 | exit_inferior_silent (pid); |
3754 | ||
3755 | close (trace_fd); | |
3756 | trace_fd = -1; | |
98e03262 SS |
3757 | if (trace_filename) |
3758 | xfree (trace_filename); | |
00bf0b85 SS |
3759 | } |
3760 | ||
3761 | static void | |
3762 | tfile_files_info (struct target_ops *t) | |
3763 | { | |
c378eb4e | 3764 | /* (it would be useful to mention the name of the file). */ |
00bf0b85 SS |
3765 | printf_filtered ("Looking at a trace file.\n"); |
3766 | } | |
3767 | ||
3768 | /* The trace status for a file is that tracing can never be run. */ | |
3769 | ||
3770 | static int | |
3771 | tfile_get_trace_status (struct trace_status *ts) | |
3772 | { | |
3773 | /* Other bits of trace status were collected as part of opening the | |
3774 | trace files, so nothing to do here. */ | |
3775 | ||
3776 | return -1; | |
3777 | } | |
3778 | ||
3779 | /* Given the position of a traceframe in the file, figure out what | |
3780 | address the frame was collected at. This would normally be the | |
3781 | value of a collected PC register, but if not available, we | |
3782 | improvise. */ | |
3783 | ||
3784 | static ULONGEST | |
3785 | tfile_get_traceframe_address (off_t tframe_offset) | |
3786 | { | |
3787 | ULONGEST addr = 0; | |
3788 | short tpnum; | |
3789 | struct breakpoint *tp; | |
3790 | off_t saved_offset = cur_offset; | |
3791 | ||
c378eb4e | 3792 | /* FIXME dig pc out of collected registers. */ |
00bf0b85 SS |
3793 | |
3794 | /* Fall back to using tracepoint address. */ | |
3795 | lseek (trace_fd, tframe_offset, SEEK_SET); | |
9f41c731 | 3796 | tfile_read ((gdb_byte *) &tpnum, 2); |
8991e9fa HZ |
3797 | tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2, |
3798 | gdbarch_byte_order | |
3799 | (target_gdbarch)); | |
98e03262 | 3800 | |
00bf0b85 | 3801 | tp = get_tracepoint_by_number_on_target (tpnum); |
c378eb4e | 3802 | /* FIXME this is a poor heuristic if multiple locations. */ |
00bf0b85 SS |
3803 | if (tp && tp->loc) |
3804 | addr = tp->loc->address; | |
3805 | ||
3806 | /* Restore our seek position. */ | |
3807 | cur_offset = saved_offset; | |
3808 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3809 | return addr; | |
3810 | } | |
3811 | ||
e6e4e701 PA |
3812 | /* Make tfile's selected traceframe match GDB's selected |
3813 | traceframe. */ | |
3814 | ||
3815 | static void | |
3816 | set_tfile_traceframe (void) | |
3817 | { | |
3818 | int newnum; | |
3819 | ||
3820 | if (cur_traceframe_number == get_traceframe_number ()) | |
3821 | return; | |
3822 | ||
3823 | /* Avoid recursion, tfile_trace_find calls us again. */ | |
3824 | cur_traceframe_number = get_traceframe_number (); | |
3825 | ||
3826 | newnum = target_trace_find (tfind_number, | |
3827 | get_traceframe_number (), 0, 0, NULL); | |
3828 | ||
3829 | /* Should not happen. If it does, all bets are off. */ | |
3830 | if (newnum != get_traceframe_number ()) | |
3831 | warning (_("could not set tfile's traceframe")); | |
3832 | } | |
3833 | ||
00bf0b85 SS |
3834 | /* Given a type of search and some parameters, scan the collection of |
3835 | traceframes in the file looking for a match. When found, return | |
3836 | both the traceframe and tracepoint number, otherwise -1 for | |
3837 | each. */ | |
3838 | ||
3839 | static int | |
3840 | tfile_trace_find (enum trace_find_type type, int num, | |
3841 | ULONGEST addr1, ULONGEST addr2, int *tpp) | |
3842 | { | |
3843 | short tpnum; | |
9f41c731 | 3844 | int tfnum = 0, found = 0; |
8991e9fa | 3845 | unsigned int data_size; |
00bf0b85 SS |
3846 | struct breakpoint *tp; |
3847 | off_t offset, tframe_offset; | |
3848 | ULONGEST tfaddr; | |
3849 | ||
e6e4e701 PA |
3850 | /* Lookups other than by absolute frame number depend on the current |
3851 | trace selected, so make sure it is correct on the tfile end | |
3852 | first. */ | |
3853 | if (type != tfind_number) | |
3854 | set_tfile_traceframe (); | |
3855 | ||
00bf0b85 SS |
3856 | lseek (trace_fd, trace_frames_offset, SEEK_SET); |
3857 | offset = trace_frames_offset; | |
3858 | while (1) | |
3859 | { | |
3860 | tframe_offset = offset; | |
9f41c731 | 3861 | tfile_read ((gdb_byte *) &tpnum, 2); |
8991e9fa HZ |
3862 | tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2, |
3863 | gdbarch_byte_order | |
3864 | (target_gdbarch)); | |
00bf0b85 SS |
3865 | offset += 2; |
3866 | if (tpnum == 0) | |
3867 | break; | |
9f41c731 | 3868 | tfile_read ((gdb_byte *) &data_size, 4); |
8991e9fa HZ |
3869 | data_size = (unsigned int) extract_unsigned_integer |
3870 | ((gdb_byte *) &data_size, 4, | |
3871 | gdbarch_byte_order (target_gdbarch)); | |
00bf0b85 SS |
3872 | offset += 4; |
3873 | switch (type) | |
3874 | { | |
3875 | case tfind_number: | |
3876 | if (tfnum == num) | |
3877 | found = 1; | |
3878 | break; | |
3879 | case tfind_pc: | |
3880 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3881 | if (tfaddr == addr1) | |
3882 | found = 1; | |
3883 | break; | |
3884 | case tfind_tp: | |
3885 | tp = get_tracepoint (num); | |
3886 | if (tp && tpnum == tp->number_on_target) | |
3887 | found = 1; | |
3888 | break; | |
3889 | case tfind_range: | |
3890 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3891 | if (addr1 <= tfaddr && tfaddr <= addr2) | |
3892 | found = 1; | |
3893 | break; | |
3894 | case tfind_outside: | |
3895 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3896 | if (!(addr1 <= tfaddr && tfaddr <= addr2)) | |
3897 | found = 1; | |
3898 | break; | |
3899 | default: | |
3900 | internal_error (__FILE__, __LINE__, _("unknown tfind type")); | |
3901 | } | |
3902 | if (found) | |
3903 | { | |
00bf0b85 SS |
3904 | if (tpp) |
3905 | *tpp = tpnum; | |
3906 | cur_offset = offset; | |
3907 | cur_data_size = data_size; | |
e6e4e701 | 3908 | cur_traceframe_number = tfnum; |
00bf0b85 SS |
3909 | return tfnum; |
3910 | } | |
3911 | /* Skip past the traceframe's data. */ | |
3912 | lseek (trace_fd, data_size, SEEK_CUR); | |
3913 | offset += data_size; | |
3914 | /* Update our own count of traceframes. */ | |
3915 | ++tfnum; | |
3916 | } | |
3917 | /* Did not find what we were looking for. */ | |
3918 | if (tpp) | |
3919 | *tpp = -1; | |
3920 | return -1; | |
3921 | } | |
3922 | ||
9f41c731 PA |
3923 | /* Prototype of the callback passed to tframe_walk_blocks. */ |
3924 | typedef int (*walk_blocks_callback_func) (char blocktype, void *data); | |
3925 | ||
3926 | /* Callback for traceframe_walk_blocks, used to find a given block | |
3927 | type in a traceframe. */ | |
3928 | ||
3929 | static int | |
3930 | match_blocktype (char blocktype, void *data) | |
3931 | { | |
3932 | char *wantedp = data; | |
3933 | ||
3934 | if (*wantedp == blocktype) | |
3935 | return 1; | |
3936 | ||
3937 | return 0; | |
3938 | } | |
3939 | ||
3940 | /* Walk over all traceframe block starting at POS offset from | |
3941 | CUR_OFFSET, and call CALLBACK for each block found, passing in DATA | |
3942 | unmodified. If CALLBACK returns true, this returns the position in | |
3943 | the traceframe where the block is found, relative to the start of | |
3944 | the traceframe (cur_offset). Returns -1 if no callback call | |
3945 | returned true, indicating that all blocks have been walked. */ | |
3946 | ||
3947 | static int | |
3948 | traceframe_walk_blocks (walk_blocks_callback_func callback, | |
3949 | int pos, void *data) | |
3950 | { | |
3951 | /* Iterate through a traceframe's blocks, looking for a block of the | |
3952 | requested type. */ | |
3953 | ||
3954 | lseek (trace_fd, cur_offset + pos, SEEK_SET); | |
3955 | while (pos < cur_data_size) | |
3956 | { | |
3957 | unsigned short mlen; | |
3958 | char block_type; | |
3959 | ||
3960 | tfile_read (&block_type, 1); | |
3961 | ||
3962 | ++pos; | |
3963 | ||
3964 | if ((*callback) (block_type, data)) | |
3965 | return pos; | |
3966 | ||
3967 | switch (block_type) | |
3968 | { | |
3969 | case 'R': | |
3970 | lseek (trace_fd, cur_offset + pos + trace_regblock_size, SEEK_SET); | |
3971 | pos += trace_regblock_size; | |
3972 | break; | |
3973 | case 'M': | |
3974 | lseek (trace_fd, cur_offset + pos + 8, SEEK_SET); | |
3975 | tfile_read ((gdb_byte *) &mlen, 2); | |
3976 | mlen = (unsigned short) | |
3977 | extract_unsigned_integer ((gdb_byte *) &mlen, 2, | |
3978 | gdbarch_byte_order | |
3979 | (target_gdbarch)); | |
3980 | lseek (trace_fd, mlen, SEEK_CUR); | |
3981 | pos += (8 + 2 + mlen); | |
3982 | break; | |
3983 | case 'V': | |
3984 | lseek (trace_fd, cur_offset + pos + 4 + 8, SEEK_SET); | |
3985 | pos += (4 + 8); | |
3986 | break; | |
3987 | default: | |
c2f0d045 | 3988 | error (_("Unknown block type '%c' (0x%x) in trace frame"), |
9f41c731 PA |
3989 | block_type, block_type); |
3990 | break; | |
3991 | } | |
3992 | } | |
3993 | ||
3994 | return -1; | |
3995 | } | |
3996 | ||
3997 | /* Convenience wrapper around traceframe_walk_blocks. Looks for the | |
3998 | position offset of a block of type TYPE_WANTED in the current trace | |
3999 | frame, starting at POS. Returns -1 if no such block was found. */ | |
4000 | ||
4001 | static int | |
4002 | traceframe_find_block_type (char type_wanted, int pos) | |
4003 | { | |
4004 | return traceframe_walk_blocks (match_blocktype, pos, &type_wanted); | |
4005 | } | |
4006 | ||
00bf0b85 SS |
4007 | /* Look for a block of saved registers in the traceframe, and get the |
4008 | requested register from it. */ | |
4009 | ||
4010 | static void | |
4011 | tfile_fetch_registers (struct target_ops *ops, | |
4012 | struct regcache *regcache, int regno) | |
4013 | { | |
4014 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
4015 | char block_type; | |
9f41c731 | 4016 | int pos, offset, regn, regsize, pc_regno; |
00bf0b85 SS |
4017 | unsigned short mlen; |
4018 | char *regs; | |
4019 | ||
4020 | /* An uninitialized reg size says we're not going to be | |
4021 | successful at getting register blocks. */ | |
4022 | if (!trace_regblock_size) | |
4023 | return; | |
4024 | ||
e6e4e701 PA |
4025 | set_tfile_traceframe (); |
4026 | ||
00bf0b85 SS |
4027 | regs = alloca (trace_regblock_size); |
4028 | ||
9f41c731 | 4029 | if (traceframe_find_block_type ('R', 0) >= 0) |
00bf0b85 | 4030 | { |
9f41c731 | 4031 | tfile_read (regs, trace_regblock_size); |
98e03262 | 4032 | |
9f41c731 PA |
4033 | /* Assume the block is laid out in GDB register number order, |
4034 | each register with the size that it has in GDB. */ | |
4035 | offset = 0; | |
4036 | for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++) | |
00bf0b85 | 4037 | { |
9f41c731 PA |
4038 | regsize = register_size (gdbarch, regn); |
4039 | /* Make sure we stay within block bounds. */ | |
4040 | if (offset + regsize >= trace_regblock_size) | |
4041 | break; | |
4042 | if (regcache_register_status (regcache, regn) == REG_UNKNOWN) | |
00bf0b85 | 4043 | { |
9f41c731 | 4044 | if (regno == regn) |
00bf0b85 | 4045 | { |
9f41c731 PA |
4046 | regcache_raw_supply (regcache, regno, regs + offset); |
4047 | break; | |
4048 | } | |
4049 | else if (regno == -1) | |
4050 | { | |
4051 | regcache_raw_supply (regcache, regn, regs + offset); | |
00bf0b85 | 4052 | } |
00bf0b85 | 4053 | } |
9f41c731 | 4054 | offset += regsize; |
00bf0b85 | 4055 | } |
9f41c731 | 4056 | return; |
00bf0b85 | 4057 | } |
af54718e | 4058 | |
9f41c731 PA |
4059 | /* We get here if no register data has been found. Mark registers |
4060 | as unavailable. */ | |
af54718e SS |
4061 | for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++) |
4062 | regcache_raw_supply (regcache, regn, NULL); | |
4063 | ||
4064 | /* We can often usefully guess that the PC is going to be the same | |
4065 | as the address of the tracepoint. */ | |
4066 | pc_regno = gdbarch_pc_regnum (gdbarch); | |
4067 | if (pc_regno >= 0 && (regno == -1 || regno == pc_regno)) | |
4068 | { | |
4069 | struct breakpoint *tp = get_tracepoint (tracepoint_number); | |
4070 | ||
4071 | if (tp && tp->loc) | |
4072 | { | |
4073 | /* But don't try to guess if tracepoint is multi-location... */ | |
4074 | if (tp->loc->next) | |
4075 | { | |
a73c6dcd MS |
4076 | warning (_("Tracepoint %d has multiple " |
4077 | "locations, cannot infer $pc"), | |
af54718e SS |
4078 | tp->number); |
4079 | return; | |
4080 | } | |
4081 | /* ... or does while-stepping. */ | |
4082 | if (tp->step_count > 0) | |
4083 | { | |
a73c6dcd MS |
4084 | warning (_("Tracepoint %d does while-stepping, " |
4085 | "cannot infer $pc"), | |
af54718e SS |
4086 | tp->number); |
4087 | return; | |
4088 | } | |
4089 | ||
4090 | store_unsigned_integer (regs, register_size (gdbarch, pc_regno), | |
4091 | gdbarch_byte_order (gdbarch), | |
4092 | tp->loc->address); | |
4093 | regcache_raw_supply (regcache, pc_regno, regs); | |
4094 | } | |
4095 | } | |
00bf0b85 SS |
4096 | } |
4097 | ||
4098 | static LONGEST | |
4099 | tfile_xfer_partial (struct target_ops *ops, enum target_object object, | |
4100 | const char *annex, gdb_byte *readbuf, | |
4101 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
4102 | { | |
00bf0b85 SS |
4103 | /* We're only doing regular memory for now. */ |
4104 | if (object != TARGET_OBJECT_MEMORY) | |
4105 | return -1; | |
4106 | ||
4107 | if (readbuf == NULL) | |
a73c6dcd | 4108 | error (_("tfile_xfer_partial: trace file is read-only")); |
00bf0b85 | 4109 | |
e6e4e701 PA |
4110 | set_tfile_traceframe (); |
4111 | ||
4112 | if (traceframe_number != -1) | |
00bf0b85 | 4113 | { |
ffd5ec24 | 4114 | int pos = 0; |
9f41c731 | 4115 | |
ffd5ec24 PA |
4116 | /* Iterate through the traceframe's blocks, looking for |
4117 | memory. */ | |
4118 | while ((pos = traceframe_find_block_type ('M', pos)) >= 0) | |
00bf0b85 | 4119 | { |
ffd5ec24 PA |
4120 | ULONGEST maddr, amt; |
4121 | unsigned short mlen; | |
4122 | enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch); | |
fce3c1f0 | 4123 | |
ffd5ec24 PA |
4124 | tfile_read ((gdb_byte *) &maddr, 8); |
4125 | maddr = extract_unsigned_integer ((gdb_byte *) &maddr, 8, | |
4126 | byte_order); | |
4127 | tfile_read ((gdb_byte *) &mlen, 2); | |
4128 | mlen = (unsigned short) | |
4129 | extract_unsigned_integer ((gdb_byte *) &mlen, 2, byte_order); | |
4130 | ||
4131 | /* If the block includes the first part of the desired | |
4132 | range, return as much it has; GDB will re-request the | |
4133 | remainder, which might be in a different block of this | |
4134 | trace frame. */ | |
4135 | if (maddr <= offset && offset < (maddr + mlen)) | |
4136 | { | |
4137 | amt = (maddr + mlen) - offset; | |
4138 | if (amt > len) | |
4139 | amt = len; | |
4140 | ||
4141 | tfile_read (readbuf, amt); | |
4142 | return amt; | |
4143 | } | |
9f41c731 | 4144 | |
ffd5ec24 PA |
4145 | /* Skip over this block. */ |
4146 | pos += (8 + 2 + mlen); | |
4147 | } | |
00bf0b85 | 4148 | } |
fce3c1f0 SS |
4149 | |
4150 | /* It's unduly pedantic to refuse to look at the executable for | |
4151 | read-only pieces; so do the equivalent of readonly regions aka | |
4152 | QTro packet. */ | |
c378eb4e | 4153 | /* FIXME account for relocation at some point. */ |
fce3c1f0 SS |
4154 | if (exec_bfd) |
4155 | { | |
4156 | asection *s; | |
4157 | bfd_size_type size; | |
2209c807 | 4158 | bfd_vma vma; |
fce3c1f0 SS |
4159 | |
4160 | for (s = exec_bfd->sections; s; s = s->next) | |
4161 | { | |
9f41c731 PA |
4162 | if ((s->flags & SEC_LOAD) == 0 |
4163 | || (s->flags & SEC_READONLY) == 0) | |
fce3c1f0 SS |
4164 | continue; |
4165 | ||
2209c807 | 4166 | vma = s->vma; |
fce3c1f0 | 4167 | size = bfd_get_section_size (s); |
2209c807 | 4168 | if (vma <= offset && offset < (vma + size)) |
fce3c1f0 | 4169 | { |
9f41c731 PA |
4170 | ULONGEST amt; |
4171 | ||
2209c807 | 4172 | amt = (vma + size) - offset; |
fce3c1f0 SS |
4173 | if (amt > len) |
4174 | amt = len; | |
4175 | ||
4176 | amt = bfd_get_section_contents (exec_bfd, s, | |
2209c807 | 4177 | readbuf, offset - vma, amt); |
fce3c1f0 SS |
4178 | return amt; |
4179 | } | |
4180 | } | |
4181 | } | |
4182 | ||
00bf0b85 SS |
4183 | /* Indicate failure to find the requested memory block. */ |
4184 | return -1; | |
4185 | } | |
4186 | ||
4187 | /* Iterate through the blocks of a trace frame, looking for a 'V' | |
4188 | block with a matching tsv number. */ | |
4189 | ||
4190 | static int | |
4191 | tfile_get_trace_state_variable_value (int tsvnum, LONGEST *val) | |
4192 | { | |
9f41c731 | 4193 | int pos; |
00bf0b85 | 4194 | |
e6e4e701 PA |
4195 | set_tfile_traceframe (); |
4196 | ||
00bf0b85 | 4197 | pos = 0; |
9f41c731 | 4198 | while ((pos = traceframe_find_block_type ('V', pos)) >= 0) |
00bf0b85 | 4199 | { |
9f41c731 PA |
4200 | int vnum; |
4201 | ||
4202 | tfile_read ((gdb_byte *) &vnum, 4); | |
4203 | vnum = (int) extract_signed_integer ((gdb_byte *) &vnum, 4, | |
8991e9fa | 4204 | gdbarch_byte_order |
9f41c731 PA |
4205 | (target_gdbarch)); |
4206 | if (tsvnum == vnum) | |
4207 | { | |
4208 | tfile_read ((gdb_byte *) val, 8); | |
4209 | *val = extract_signed_integer ((gdb_byte *) val, 8, | |
4210 | gdbarch_byte_order | |
4211 | (target_gdbarch)); | |
4212 | return 1; | |
00bf0b85 | 4213 | } |
9f41c731 | 4214 | pos += (4 + 8); |
00bf0b85 | 4215 | } |
9f41c731 | 4216 | |
00bf0b85 SS |
4217 | /* Didn't find anything. */ |
4218 | return 0; | |
4219 | } | |
4220 | ||
fce3c1f0 SS |
4221 | static int |
4222 | tfile_has_all_memory (struct target_ops *ops) | |
4223 | { | |
4224 | return 1; | |
4225 | } | |
4226 | ||
00bf0b85 SS |
4227 | static int |
4228 | tfile_has_memory (struct target_ops *ops) | |
4229 | { | |
4230 | return 1; | |
4231 | } | |
4232 | ||
4233 | static int | |
4234 | tfile_has_stack (struct target_ops *ops) | |
4235 | { | |
ffd5ec24 | 4236 | return traceframe_number != -1; |
00bf0b85 SS |
4237 | } |
4238 | ||
4239 | static int | |
4240 | tfile_has_registers (struct target_ops *ops) | |
4241 | { | |
ffd5ec24 | 4242 | return traceframe_number != -1; |
00bf0b85 SS |
4243 | } |
4244 | ||
b3b9301e PA |
4245 | /* Callback for traceframe_walk_blocks. Builds a traceframe_info |
4246 | object for the tfile target's current traceframe. */ | |
4247 | ||
4248 | static int | |
4249 | build_traceframe_info (char blocktype, void *data) | |
4250 | { | |
4251 | struct traceframe_info *info = data; | |
4252 | ||
4253 | switch (blocktype) | |
4254 | { | |
4255 | case 'M': | |
4256 | { | |
4257 | struct mem_range *r; | |
4258 | ULONGEST maddr; | |
4259 | unsigned short mlen; | |
4260 | ||
4261 | tfile_read ((gdb_byte *) &maddr, 8); | |
4262 | tfile_read ((gdb_byte *) &mlen, 2); | |
4263 | ||
4264 | r = VEC_safe_push (mem_range_s, info->memory, NULL); | |
4265 | ||
4266 | r->start = maddr; | |
4267 | r->length = mlen; | |
4268 | break; | |
4269 | } | |
4270 | case 'V': | |
4271 | case 'R': | |
4272 | case 'S': | |
4273 | { | |
4274 | break; | |
4275 | } | |
4276 | default: | |
4277 | warning (_("Unhandled trace block type (%d) '%c ' " | |
4278 | "while building trace frame info."), | |
4279 | blocktype, blocktype); | |
4280 | break; | |
4281 | } | |
4282 | ||
4283 | return 0; | |
4284 | } | |
4285 | ||
4286 | static struct traceframe_info * | |
4287 | tfile_traceframe_info (void) | |
4288 | { | |
4289 | struct traceframe_info *info = XCNEW (struct traceframe_info); | |
4290 | ||
4291 | traceframe_walk_blocks (build_traceframe_info, 0, info); | |
4292 | return info; | |
4293 | } | |
4294 | ||
00bf0b85 SS |
4295 | static void |
4296 | init_tfile_ops (void) | |
4297 | { | |
4298 | tfile_ops.to_shortname = "tfile"; | |
4299 | tfile_ops.to_longname = "Local trace dump file"; | |
3e43a32a MS |
4300 | tfile_ops.to_doc |
4301 | = "Use a trace file as a target. Specify the filename of the trace file."; | |
00bf0b85 SS |
4302 | tfile_ops.to_open = tfile_open; |
4303 | tfile_ops.to_close = tfile_close; | |
4304 | tfile_ops.to_fetch_registers = tfile_fetch_registers; | |
4305 | tfile_ops.to_xfer_partial = tfile_xfer_partial; | |
4306 | tfile_ops.to_files_info = tfile_files_info; | |
4307 | tfile_ops.to_get_trace_status = tfile_get_trace_status; | |
4308 | tfile_ops.to_trace_find = tfile_trace_find; | |
3e43a32a MS |
4309 | tfile_ops.to_get_trace_state_variable_value |
4310 | = tfile_get_trace_state_variable_value; | |
00bf0b85 | 4311 | tfile_ops.to_stratum = process_stratum; |
fce3c1f0 | 4312 | tfile_ops.to_has_all_memory = tfile_has_all_memory; |
00bf0b85 SS |
4313 | tfile_ops.to_has_memory = tfile_has_memory; |
4314 | tfile_ops.to_has_stack = tfile_has_stack; | |
4315 | tfile_ops.to_has_registers = tfile_has_registers; | |
b3b9301e | 4316 | tfile_ops.to_traceframe_info = tfile_traceframe_info; |
00bf0b85 SS |
4317 | tfile_ops.to_magic = OPS_MAGIC; |
4318 | } | |
4319 | ||
0fb4aa4b PA |
4320 | /* Given a line of text defining a static tracepoint marker, parse it |
4321 | into a "static tracepoint marker" object. Throws an error is | |
4322 | parsing fails. If PP is non-null, it points to one past the end of | |
4323 | the parsed marker definition. */ | |
4324 | ||
4325 | void | |
4326 | parse_static_tracepoint_marker_definition (char *line, char **pp, | |
4327 | struct static_tracepoint_marker *marker) | |
4328 | { | |
4329 | char *p, *endp; | |
4330 | ULONGEST addr; | |
4331 | int end; | |
4332 | ||
4333 | p = line; | |
4334 | p = unpack_varlen_hex (p, &addr); | |
4335 | p++; /* skip a colon */ | |
4336 | ||
4337 | marker->gdbarch = target_gdbarch; | |
4338 | marker->address = (CORE_ADDR) addr; | |
4339 | ||
4340 | endp = strchr (p, ':'); | |
4341 | if (endp == NULL) | |
74232302 | 4342 | error (_("bad marker definition: %s"), line); |
0fb4aa4b PA |
4343 | |
4344 | marker->str_id = xmalloc (endp - p + 1); | |
4345 | end = hex2bin (p, (gdb_byte *) marker->str_id, (endp - p + 1) / 2); | |
4346 | marker->str_id[end] = '\0'; | |
4347 | ||
4348 | p += 2 * end; | |
4349 | p++; /* skip a colon */ | |
4350 | ||
4351 | marker->extra = xmalloc (strlen (p) + 1); | |
4352 | end = hex2bin (p, (gdb_byte *) marker->extra, strlen (p) / 2); | |
4353 | marker->extra[end] = '\0'; | |
4354 | ||
4355 | if (pp) | |
4356 | *pp = p; | |
4357 | } | |
4358 | ||
4359 | /* Release a static tracepoint marker's contents. Note that the | |
4360 | object itself isn't released here. There objects are usually on | |
4361 | the stack. */ | |
4362 | ||
4363 | void | |
4364 | release_static_tracepoint_marker (struct static_tracepoint_marker *marker) | |
4365 | { | |
4366 | xfree (marker->str_id); | |
4367 | marker->str_id = NULL; | |
4368 | } | |
4369 | ||
4370 | /* Print MARKER to gdb_stdout. */ | |
4371 | ||
4372 | static void | |
4373 | print_one_static_tracepoint_marker (int count, | |
4374 | struct static_tracepoint_marker *marker) | |
4375 | { | |
4376 | struct command_line *l; | |
4377 | struct symbol *sym; | |
4378 | ||
4379 | char wrap_indent[80]; | |
4380 | char extra_field_indent[80]; | |
4381 | struct ui_stream *stb = ui_out_stream_new (uiout); | |
4382 | struct cleanup *old_chain = make_cleanup_ui_out_stream_delete (stb); | |
4383 | struct cleanup *bkpt_chain; | |
4384 | VEC(breakpoint_p) *tracepoints; | |
4385 | ||
4386 | struct symtab_and_line sal; | |
4387 | ||
4388 | init_sal (&sal); | |
4389 | ||
4390 | sal.pc = marker->address; | |
4391 | ||
4392 | tracepoints = static_tracepoints_here (marker->address); | |
4393 | ||
4394 | bkpt_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "marker"); | |
4395 | ||
4396 | /* A counter field to help readability. This is not a stable | |
4397 | identifier! */ | |
4398 | ui_out_field_int (uiout, "count", count); | |
4399 | ||
4400 | ui_out_field_string (uiout, "marker-id", marker->str_id); | |
4401 | ||
4402 | ui_out_field_fmt (uiout, "enabled", "%c", | |
4403 | !VEC_empty (breakpoint_p, tracepoints) ? 'y' : 'n'); | |
4404 | ui_out_spaces (uiout, 2); | |
4405 | ||
4406 | strcpy (wrap_indent, " "); | |
4407 | ||
4408 | if (gdbarch_addr_bit (marker->gdbarch) <= 32) | |
4409 | strcat (wrap_indent, " "); | |
4410 | else | |
4411 | strcat (wrap_indent, " "); | |
4412 | ||
4413 | strcpy (extra_field_indent, " "); | |
4414 | ||
4415 | ui_out_field_core_addr (uiout, "addr", marker->gdbarch, marker->address); | |
4416 | ||
4417 | sal = find_pc_line (marker->address, 0); | |
4418 | sym = find_pc_sect_function (marker->address, NULL); | |
4419 | if (sym) | |
4420 | { | |
4421 | ui_out_text (uiout, "in "); | |
4422 | ui_out_field_string (uiout, "func", | |
4423 | SYMBOL_PRINT_NAME (sym)); | |
4424 | ui_out_wrap_hint (uiout, wrap_indent); | |
4425 | ui_out_text (uiout, " at "); | |
4426 | } | |
4427 | else | |
4428 | ui_out_field_skip (uiout, "func"); | |
4429 | ||
4430 | if (sal.symtab != NULL) | |
4431 | { | |
4432 | ui_out_field_string (uiout, "file", sal.symtab->filename); | |
4433 | ui_out_text (uiout, ":"); | |
4434 | ||
4435 | if (ui_out_is_mi_like_p (uiout)) | |
4436 | { | |
4437 | char *fullname = symtab_to_fullname (sal.symtab); | |
4438 | ||
4439 | if (fullname) | |
4440 | ui_out_field_string (uiout, "fullname", fullname); | |
4441 | } | |
4442 | else | |
4443 | ui_out_field_skip (uiout, "fullname"); | |
4444 | ||
4445 | ui_out_field_int (uiout, "line", sal.line); | |
4446 | } | |
4447 | else | |
4448 | { | |
4449 | ui_out_field_skip (uiout, "fullname"); | |
4450 | ui_out_field_skip (uiout, "line"); | |
4451 | } | |
4452 | ||
4453 | ui_out_text (uiout, "\n"); | |
4454 | ui_out_text (uiout, extra_field_indent); | |
4455 | ui_out_text (uiout, _("Data: \"")); | |
4456 | ui_out_field_string (uiout, "extra-data", marker->extra); | |
4457 | ui_out_text (uiout, "\"\n"); | |
4458 | ||
4459 | if (!VEC_empty (breakpoint_p, tracepoints)) | |
4460 | { | |
4461 | struct cleanup *cleanup_chain; | |
4462 | int ix; | |
4463 | struct breakpoint *b; | |
4464 | ||
4465 | cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, | |
4466 | "tracepoints-at"); | |
4467 | ||
4468 | ui_out_text (uiout, extra_field_indent); | |
4469 | ui_out_text (uiout, _("Probed by static tracepoints: ")); | |
4470 | for (ix = 0; VEC_iterate(breakpoint_p, tracepoints, ix, b); ix++) | |
4471 | { | |
4472 | if (ix > 0) | |
4473 | ui_out_text (uiout, ", "); | |
4474 | ui_out_text (uiout, "#"); | |
4475 | ui_out_field_int (uiout, "tracepoint-id", b->number); | |
4476 | } | |
4477 | ||
4478 | do_cleanups (cleanup_chain); | |
4479 | ||
4480 | if (ui_out_is_mi_like_p (uiout)) | |
4481 | ui_out_field_int (uiout, "number-of-tracepoints", | |
4482 | VEC_length(breakpoint_p, tracepoints)); | |
4483 | else | |
4484 | ui_out_text (uiout, "\n"); | |
4485 | } | |
4486 | VEC_free (breakpoint_p, tracepoints); | |
4487 | ||
4488 | do_cleanups (bkpt_chain); | |
4489 | do_cleanups (old_chain); | |
4490 | } | |
4491 | ||
4492 | static void | |
4493 | info_static_tracepoint_markers_command (char *arg, int from_tty) | |
4494 | { | |
4495 | VEC(static_tracepoint_marker_p) *markers; | |
4496 | struct cleanup *old_chain; | |
4497 | struct static_tracepoint_marker *marker; | |
4498 | int i; | |
4499 | ||
4500 | old_chain | |
4501 | = make_cleanup_ui_out_table_begin_end (uiout, 5, -1, | |
4502 | "StaticTracepointMarkersTable"); | |
4503 | ||
4504 | ui_out_table_header (uiout, 7, ui_left, "counter", "Cnt"); | |
4505 | ||
4506 | ui_out_table_header (uiout, 40, ui_left, "marker-id", "ID"); | |
4507 | ||
4508 | ui_out_table_header (uiout, 3, ui_left, "enabled", "Enb"); | |
4509 | if (gdbarch_addr_bit (target_gdbarch) <= 32) | |
4510 | ui_out_table_header (uiout, 10, ui_left, "addr", "Address"); | |
4511 | else | |
4512 | ui_out_table_header (uiout, 18, ui_left, "addr", "Address"); | |
4513 | ui_out_table_header (uiout, 40, ui_noalign, "what", "What"); | |
4514 | ||
4515 | ui_out_table_body (uiout); | |
4516 | ||
4517 | markers = target_static_tracepoint_markers_by_strid (NULL); | |
4518 | make_cleanup (VEC_cleanup (static_tracepoint_marker_p), &markers); | |
4519 | ||
4520 | for (i = 0; | |
4521 | VEC_iterate (static_tracepoint_marker_p, | |
4522 | markers, i, marker); | |
4523 | i++) | |
4524 | { | |
4525 | print_one_static_tracepoint_marker (i + 1, marker); | |
4526 | release_static_tracepoint_marker (marker); | |
4527 | } | |
4528 | ||
4529 | do_cleanups (old_chain); | |
4530 | } | |
4531 | ||
4532 | /* The $_sdata convenience variable is a bit special. We don't know | |
4533 | for sure type of the value until we actually have a chance to fetch | |
4534 | the data --- the size of the object depends on what has been | |
4535 | collected. We solve this by making $_sdata be an internalvar that | |
4536 | creates a new value on access. */ | |
4537 | ||
4538 | /* Return a new value with the correct type for the sdata object of | |
4539 | the current trace frame. Return a void value if there's no object | |
4540 | available. */ | |
4541 | ||
4542 | static struct value * | |
4543 | sdata_make_value (struct gdbarch *gdbarch, struct internalvar *var) | |
4544 | { | |
4545 | LONGEST size; | |
4546 | gdb_byte *buf; | |
4547 | ||
4548 | /* We need to read the whole object before we know its size. */ | |
4549 | size = target_read_alloc (¤t_target, | |
4550 | TARGET_OBJECT_STATIC_TRACE_DATA, | |
4551 | NULL, &buf); | |
4552 | if (size >= 0) | |
4553 | { | |
4554 | struct value *v; | |
4555 | struct type *type; | |
4556 | ||
4557 | type = init_vector_type (builtin_type (gdbarch)->builtin_true_char, | |
4558 | size); | |
4559 | v = allocate_value (type); | |
4560 | memcpy (value_contents_raw (v), buf, size); | |
4561 | xfree (buf); | |
4562 | return v; | |
4563 | } | |
4564 | else | |
4565 | return allocate_value (builtin_type (gdbarch)->builtin_void); | |
4566 | } | |
4567 | ||
b3b9301e PA |
4568 | #if !defined(HAVE_LIBEXPAT) |
4569 | ||
4570 | struct traceframe_info * | |
4571 | parse_traceframe_info (const char *tframe_info) | |
4572 | { | |
4573 | static int have_warned; | |
4574 | ||
4575 | if (!have_warned) | |
4576 | { | |
4577 | have_warned = 1; | |
4578 | warning (_("Can not parse XML trace frame info; XML support " | |
4579 | "was disabled at compile time")); | |
4580 | } | |
4581 | ||
4582 | return NULL; | |
4583 | } | |
4584 | ||
4585 | #else /* HAVE_LIBEXPAT */ | |
4586 | ||
4587 | #include "xml-support.h" | |
4588 | ||
4589 | /* Handle the start of a <memory> element. */ | |
4590 | ||
4591 | static void | |
4592 | traceframe_info_start_memory (struct gdb_xml_parser *parser, | |
4593 | const struct gdb_xml_element *element, | |
4594 | void *user_data, VEC(gdb_xml_value_s) *attributes) | |
4595 | { | |
4596 | struct traceframe_info *info = user_data; | |
4597 | struct mem_range *r = VEC_safe_push (mem_range_s, info->memory, NULL); | |
4598 | ULONGEST *start_p, *length_p; | |
4599 | ||
4600 | start_p = xml_find_attribute (attributes, "start")->value; | |
4601 | length_p = xml_find_attribute (attributes, "length")->value; | |
4602 | ||
4603 | r->start = *start_p; | |
4604 | r->length = *length_p; | |
4605 | } | |
4606 | ||
4607 | /* Discard the constructed trace frame info (if an error occurs). */ | |
4608 | ||
4609 | static void | |
4610 | free_result (void *p) | |
4611 | { | |
4612 | struct traceframe_info *result = p; | |
4613 | ||
4614 | free_traceframe_info (result); | |
4615 | } | |
4616 | ||
4617 | /* The allowed elements and attributes for an XML memory map. */ | |
4618 | ||
4619 | static const struct gdb_xml_attribute memory_attributes[] = { | |
4620 | { "start", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL }, | |
4621 | { "length", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL }, | |
4622 | { NULL, GDB_XML_AF_NONE, NULL, NULL } | |
4623 | }; | |
4624 | ||
4625 | static const struct gdb_xml_element traceframe_info_children[] = { | |
4626 | { "memory", memory_attributes, NULL, | |
4627 | GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL, | |
4628 | traceframe_info_start_memory, NULL }, | |
4629 | { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL } | |
4630 | }; | |
4631 | ||
4632 | static const struct gdb_xml_element traceframe_info_elements[] = { | |
4633 | { "traceframe-info", NULL, traceframe_info_children, GDB_XML_EF_NONE, | |
4634 | NULL, NULL }, | |
4635 | { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL } | |
4636 | }; | |
4637 | ||
4638 | /* Parse a traceframe-info XML document. */ | |
4639 | ||
4640 | struct traceframe_info * | |
4641 | parse_traceframe_info (const char *tframe_info) | |
4642 | { | |
4643 | struct traceframe_info *result; | |
4644 | struct cleanup *back_to; | |
4645 | ||
4646 | result = XCNEW (struct traceframe_info); | |
4647 | back_to = make_cleanup (free_result, result); | |
4648 | ||
4649 | if (gdb_xml_parse_quick (_("trace frame info"), | |
4650 | "traceframe-info.dtd", traceframe_info_elements, | |
4651 | tframe_info, result) == 0) | |
4652 | { | |
4653 | /* Parsed successfully, keep the result. */ | |
4654 | discard_cleanups (back_to); | |
4655 | ||
4656 | return result; | |
4657 | } | |
4658 | ||
4659 | do_cleanups (back_to); | |
4660 | return NULL; | |
4661 | } | |
4662 | ||
4663 | #endif /* HAVE_LIBEXPAT */ | |
4664 | ||
4665 | /* Returns the traceframe_info object for the current traceframe. | |
4666 | This is where we avoid re-fetching the object from the target if we | |
4667 | already have it cached. */ | |
4668 | ||
4669 | struct traceframe_info * | |
4670 | get_traceframe_info (void) | |
4671 | { | |
4672 | if (traceframe_info == NULL) | |
4673 | traceframe_info = target_traceframe_info (); | |
4674 | ||
4675 | return traceframe_info; | |
4676 | } | |
4677 | ||
c0f61f9c PA |
4678 | /* If the target supports the query, return in RESULT the set of |
4679 | collected memory in the current traceframe, found within the LEN | |
4680 | bytes range starting at MEMADDR. Returns true if the target | |
4681 | supports the query, otherwise returns false, and RESULT is left | |
4682 | undefined. */ | |
2a7498d8 PA |
4683 | |
4684 | int | |
4685 | traceframe_available_memory (VEC(mem_range_s) **result, | |
4686 | CORE_ADDR memaddr, ULONGEST len) | |
4687 | { | |
4688 | struct traceframe_info *info = get_traceframe_info (); | |
4689 | ||
4690 | if (info != NULL) | |
4691 | { | |
4692 | struct mem_range *r; | |
4693 | int i; | |
4694 | ||
4695 | *result = NULL; | |
4696 | ||
4697 | for (i = 0; VEC_iterate (mem_range_s, info->memory, i, r); i++) | |
4698 | if (mem_ranges_overlap (r->start, r->length, memaddr, len)) | |
4699 | { | |
4700 | ULONGEST lo1, hi1, lo2, hi2; | |
4701 | struct mem_range *nr; | |
4702 | ||
4703 | lo1 = memaddr; | |
4704 | hi1 = memaddr + len; | |
4705 | ||
4706 | lo2 = r->start; | |
4707 | hi2 = r->start + r->length; | |
4708 | ||
4709 | nr = VEC_safe_push (mem_range_s, *result, NULL); | |
4710 | ||
4711 | nr->start = max (lo1, lo2); | |
4712 | nr->length = min (hi1, hi2) - nr->start; | |
4713 | } | |
4714 | ||
4715 | normalize_mem_ranges (*result); | |
4716 | return 1; | |
4717 | } | |
4718 | ||
4719 | return 0; | |
4720 | } | |
4721 | ||
c906108c SS |
4722 | /* module initialization */ |
4723 | void | |
fba45db2 | 4724 | _initialize_tracepoint (void) |
c906108c | 4725 | { |
fa58ee11 EZ |
4726 | struct cmd_list_element *c; |
4727 | ||
0fb4aa4b PA |
4728 | /* Explicitly create without lookup, since that tries to create a |
4729 | value with a void typed value, and when we get here, gdbarch | |
4730 | isn't initialized yet. At this point, we're quite sure there | |
4731 | isn't another convenience variable of the same name. */ | |
4732 | create_internalvar_type_lazy ("_sdata", sdata_make_value); | |
4733 | ||
c906108c SS |
4734 | traceframe_number = -1; |
4735 | tracepoint_number = -1; | |
4736 | ||
c906108c SS |
4737 | if (tracepoint_list.list == NULL) |
4738 | { | |
4739 | tracepoint_list.listsize = 128; | |
c5aa993b | 4740 | tracepoint_list.list = xmalloc |
c906108c SS |
4741 | (tracepoint_list.listsize * sizeof (struct memrange)); |
4742 | } | |
4743 | if (tracepoint_list.aexpr_list == NULL) | |
4744 | { | |
4745 | tracepoint_list.aexpr_listsize = 128; | |
4746 | tracepoint_list.aexpr_list = xmalloc | |
4747 | (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
4748 | } | |
4749 | ||
4750 | if (stepping_list.list == NULL) | |
4751 | { | |
4752 | stepping_list.listsize = 128; | |
c5aa993b | 4753 | stepping_list.list = xmalloc |
c906108c SS |
4754 | (stepping_list.listsize * sizeof (struct memrange)); |
4755 | } | |
4756 | ||
4757 | if (stepping_list.aexpr_list == NULL) | |
4758 | { | |
4759 | stepping_list.aexpr_listsize = 128; | |
4760 | stepping_list.aexpr_list = xmalloc | |
4761 | (stepping_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
4762 | } | |
4763 | ||
c5aa993b | 4764 | add_info ("scope", scope_info, |
1bedd215 | 4765 | _("List the variables local to a scope")); |
c906108c | 4766 | |
e00d1dc8 | 4767 | add_cmd ("tracepoints", class_trace, NULL, |
1a966eab | 4768 | _("Tracing of program execution without stopping the program."), |
c906108c SS |
4769 | &cmdlist); |
4770 | ||
c5aa993b | 4771 | add_com ("tdump", class_trace, trace_dump_command, |
1bedd215 | 4772 | _("Print everything collected at the current tracepoint.")); |
c906108c | 4773 | |
00bf0b85 SS |
4774 | add_com ("tsave", class_trace, trace_save_command, _("\ |
4775 | Save the trace data to a file.\n\ | |
4776 | Use the '-r' option to direct the target to save directly to the file,\n\ | |
4777 | using its own filesystem.")); | |
4778 | ||
f61e138d SS |
4779 | c = add_com ("tvariable", class_trace, trace_variable_command,_("\ |
4780 | Define a trace state variable.\n\ | |
4781 | Argument is a $-prefixed name, optionally followed\n\ | |
4782 | by '=' and an expression that sets the initial value\n\ | |
4783 | at the start of tracing.")); | |
4784 | set_cmd_completer (c, expression_completer); | |
4785 | ||
4786 | add_cmd ("tvariable", class_trace, delete_trace_variable_command, _("\ | |
4787 | Delete one or more trace state variables.\n\ | |
4788 | Arguments are the names of the variables to delete.\n\ | |
4789 | If no arguments are supplied, delete all variables."), &deletelist); | |
c378eb4e | 4790 | /* FIXME add a trace variable completer. */ |
f61e138d SS |
4791 | |
4792 | add_info ("tvariables", tvariables_info, _("\ | |
4793 | Status of trace state variables and their values.\n\ | |
0fb4aa4b PA |
4794 | ")); |
4795 | ||
4796 | add_info ("static-tracepoint-markers", | |
4797 | info_static_tracepoint_markers_command, _("\ | |
4798 | List target static tracepoints markers.\n\ | |
f61e138d SS |
4799 | ")); |
4800 | ||
1bedd215 AC |
4801 | add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\ |
4802 | Select a trace frame;\n\ | |
4803 | No argument means forward by one frame; '-' means backward by one frame."), | |
c906108c SS |
4804 | &tfindlist, "tfind ", 1, &cmdlist); |
4805 | ||
1a966eab | 4806 | add_cmd ("outside", class_trace, trace_find_outside_command, _("\ |
081dfbf7 | 4807 | Select a trace frame whose PC is outside the given range (exclusive).\n\ |
1a966eab | 4808 | Usage: tfind outside addr1, addr2"), |
c906108c SS |
4809 | &tfindlist); |
4810 | ||
1a966eab | 4811 | add_cmd ("range", class_trace, trace_find_range_command, _("\ |
081dfbf7 | 4812 | Select a trace frame whose PC is in the given range (inclusive).\n\ |
1a966eab | 4813 | Usage: tfind range addr1,addr2"), |
c906108c SS |
4814 | &tfindlist); |
4815 | ||
1a966eab AC |
4816 | add_cmd ("line", class_trace, trace_find_line_command, _("\ |
4817 | Select a trace frame by source line.\n\ | |
cce7e648 | 4818 | Argument can be a line number (with optional source file),\n\ |
c906108c | 4819 | a function name, or '*' followed by an address.\n\ |
1a966eab | 4820 | Default argument is 'the next source line that was traced'."), |
c906108c SS |
4821 | &tfindlist); |
4822 | ||
1a966eab AC |
4823 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, _("\ |
4824 | Select a trace frame by tracepoint number.\n\ | |
4825 | Default is the tracepoint for the current trace frame."), | |
c906108c SS |
4826 | &tfindlist); |
4827 | ||
1a966eab AC |
4828 | add_cmd ("pc", class_trace, trace_find_pc_command, _("\ |
4829 | Select a trace frame by PC.\n\ | |
4830 | Default is the current PC, or the PC of the current trace frame."), | |
c906108c SS |
4831 | &tfindlist); |
4832 | ||
1a966eab AC |
4833 | add_cmd ("end", class_trace, trace_find_end_command, _("\ |
4834 | Synonym for 'none'.\n\ | |
4835 | De-select any trace frame and resume 'live' debugging."), | |
c906108c SS |
4836 | &tfindlist); |
4837 | ||
4838 | add_cmd ("none", class_trace, trace_find_none_command, | |
1a966eab | 4839 | _("De-select any trace frame and resume 'live' debugging."), |
c906108c SS |
4840 | &tfindlist); |
4841 | ||
4842 | add_cmd ("start", class_trace, trace_find_start_command, | |
1a966eab | 4843 | _("Select the first trace frame in the trace buffer."), |
c906108c SS |
4844 | &tfindlist); |
4845 | ||
c5aa993b | 4846 | add_com ("tstatus", class_trace, trace_status_command, |
1bedd215 | 4847 | _("Display the status of the current trace data collection.")); |
c906108c | 4848 | |
c5aa993b | 4849 | add_com ("tstop", class_trace, trace_stop_command, |
1bedd215 | 4850 | _("Stop trace data collection.")); |
c906108c SS |
4851 | |
4852 | add_com ("tstart", class_trace, trace_start_command, | |
1bedd215 | 4853 | _("Start trace data collection.")); |
c906108c | 4854 | |
1bedd215 AC |
4855 | add_com ("end", class_trace, end_actions_pseudocommand, _("\ |
4856 | Ends a list of commands or actions.\n\ | |
c906108c SS |
4857 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
4858 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
4859 | such a list.\n\n\ | |
1bedd215 | 4860 | Note: the \"end\" command cannot be used at the gdb prompt.")); |
c906108c | 4861 | |
1bedd215 AC |
4862 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, _("\ |
4863 | Specify single-stepping behavior at a tracepoint.\n\ | |
c906108c SS |
4864 | Argument is number of instructions to trace in single-step mode\n\ |
4865 | following the tracepoint. This command is normally followed by\n\ | |
4866 | one or more \"collect\" commands, to specify what to collect\n\ | |
4867 | while single-stepping.\n\n\ | |
1bedd215 | 4868 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 4869 | |
c5aa993b JM |
4870 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
4871 | add_com_alias ("stepping", "while-stepping", class_alias, 0); | |
c906108c | 4872 | |
1bedd215 AC |
4873 | add_com ("collect", class_trace, collect_pseudocommand, _("\ |
4874 | Specify one or more data items to be collected at a tracepoint.\n\ | |
c906108c SS |
4875 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
4876 | collect all data (variables, registers) referenced by that expression.\n\ | |
4877 | Also accepts the following special arguments:\n\ | |
4878 | $regs -- all registers.\n\ | |
4879 | $args -- all function arguments.\n\ | |
4880 | $locals -- all variables local to the block/function scope.\n\ | |
0fb4aa4b | 4881 | $_sdata -- static tracepoint data (ignored for non-static tracepoints).\n\ |
1bedd215 | 4882 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 4883 | |
6da95a67 SS |
4884 | add_com ("teval", class_trace, teval_pseudocommand, _("\ |
4885 | Specify one or more expressions to be evaluated at a tracepoint.\n\ | |
4886 | Accepts a comma-separated list of (one or more) expressions.\n\ | |
4887 | The result of each evaluation will be discarded.\n\ | |
4888 | Note: this command can only be used in a tracepoint \"actions\" list.")); | |
4889 | ||
1bedd215 AC |
4890 | add_com ("actions", class_trace, trace_actions_command, _("\ |
4891 | Specify the actions to be taken at a tracepoint.\n\ | |
cce7e648 PA |
4892 | Tracepoint actions may include collecting of specified data,\n\ |
4893 | single-stepping, or enabling/disabling other tracepoints,\n\ | |
1bedd215 | 4894 | depending on target's capabilities.")); |
c906108c | 4895 | |
236f1d4d SS |
4896 | default_collect = xstrdup (""); |
4897 | add_setshow_string_cmd ("default-collect", class_trace, | |
4898 | &default_collect, _("\ | |
4899 | Set the list of expressions to collect by default"), _("\ | |
4900 | Show the list of expressions to collect by default"), NULL, | |
4901 | NULL, NULL, | |
4902 | &setlist, &showlist); | |
4903 | ||
d5551862 SS |
4904 | add_setshow_boolean_cmd ("disconnected-tracing", no_class, |
4905 | &disconnected_tracing, _("\ | |
4906 | Set whether tracing continues after GDB disconnects."), _("\ | |
4907 | Show whether tracing continues after GDB disconnects."), _("\ | |
4908 | Use this to continue a tracing run even if GDB disconnects\n\ | |
4909 | or detaches from the target. You can reconnect later and look at\n\ | |
4910 | trace data collected in the meantime."), | |
4911 | set_disconnected_tracing, | |
4912 | NULL, | |
4913 | &setlist, | |
4914 | &showlist); | |
00bf0b85 | 4915 | |
4daf5ac0 SS |
4916 | add_setshow_boolean_cmd ("circular-trace-buffer", no_class, |
4917 | &circular_trace_buffer, _("\ | |
4918 | Set target's use of circular trace buffer."), _("\ | |
4919 | Show target's use of circular trace buffer."), _("\ | |
4920 | Use this to make the trace buffer into a circular buffer,\n\ | |
4921 | which will discard traceframes (oldest first) instead of filling\n\ | |
4922 | up and stopping the trace run."), | |
4923 | set_circular_trace_buffer, | |
4924 | NULL, | |
4925 | &setlist, | |
4926 | &showlist); | |
4927 | ||
00bf0b85 SS |
4928 | init_tfile_ops (); |
4929 | ||
4930 | add_target (&tfile_ops); | |
c906108c | 4931 | } |