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" |
e93a69ed | 54 | #include "exceptions.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 | ||
d183932d MS |
74 | /* Maximum length of an agent aexpression. |
75 | This accounts for the fact that packets are limited to 400 bytes | |
c906108c SS |
76 | (which includes everything -- including the checksum), and assumes |
77 | the worst case of maximum length for each of the pieces of a | |
78 | continuation packet. | |
c5aa993b | 79 | |
c906108c SS |
80 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
81 | large. (400 - 31)/2 == 184 */ | |
82 | #define MAX_AGENT_EXPR_LEN 184 | |
83 | ||
e93a69ed PA |
84 | #define TFILE_PID (1) |
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 * | |
eeae04df | 222 | current_trace_status (void) |
00bf0b85 SS |
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 | ||
7a9dd1b2 | 240 | /* Free and clear the traceframe info cache of the current |
b3b9301e PA |
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 | ||
dba09041 PA |
274 | /* Save as globals for internal use. */ |
275 | if (trace_frame != NULL | |
276 | && get_frame_pc_if_available (trace_frame, &trace_pc)) | |
277 | { | |
278 | traceframe_sal = find_pc_line (trace_pc, 0); | |
279 | traceframe_fun = find_pc_function (trace_pc); | |
280 | ||
281 | /* Save linenumber as "$trace_line", a debugger variable visible to | |
282 | users. */ | |
283 | set_internalvar_integer (lookup_internalvar ("trace_line"), | |
284 | traceframe_sal.line); | |
285 | } | |
286 | else | |
c906108c | 287 | { |
dba09041 PA |
288 | init_sal (&traceframe_sal); |
289 | traceframe_fun = NULL; | |
4fa62494 | 290 | set_internalvar_integer (lookup_internalvar ("trace_line"), -1); |
c906108c SS |
291 | } |
292 | ||
d183932d MS |
293 | /* Save func name as "$trace_func", a debugger variable visible to |
294 | users. */ | |
4fa62494 UW |
295 | if (traceframe_fun == NULL |
296 | || SYMBOL_LINKAGE_NAME (traceframe_fun) == NULL) | |
297 | clear_internalvar (lookup_internalvar ("trace_func")); | |
c906108c | 298 | else |
78267919 UW |
299 | set_internalvar_string (lookup_internalvar ("trace_func"), |
300 | SYMBOL_LINKAGE_NAME (traceframe_fun)); | |
c906108c | 301 | |
d183932d MS |
302 | /* Save file name as "$trace_file", a debugger variable visible to |
303 | users. */ | |
4fa62494 UW |
304 | if (traceframe_sal.symtab == NULL |
305 | || traceframe_sal.symtab->filename == NULL) | |
306 | clear_internalvar (lookup_internalvar ("trace_file")); | |
c906108c | 307 | else |
78267919 UW |
308 | set_internalvar_string (lookup_internalvar ("trace_file"), |
309 | traceframe_sal.symtab->filename); | |
c906108c SS |
310 | } |
311 | ||
f61e138d SS |
312 | /* Create a new trace state variable with the given name. */ |
313 | ||
314 | struct trace_state_variable * | |
315 | create_trace_state_variable (const char *name) | |
316 | { | |
317 | struct trace_state_variable tsv; | |
318 | ||
319 | memset (&tsv, 0, sizeof (tsv)); | |
40e1c229 | 320 | tsv.name = xstrdup (name); |
f61e138d SS |
321 | tsv.number = next_tsv_number++; |
322 | return VEC_safe_push (tsv_s, tvariables, &tsv); | |
323 | } | |
324 | ||
325 | /* Look for a trace state variable of the given name. */ | |
326 | ||
327 | struct trace_state_variable * | |
328 | find_trace_state_variable (const char *name) | |
329 | { | |
330 | struct trace_state_variable *tsv; | |
331 | int ix; | |
332 | ||
333 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
334 | if (strcmp (name, tsv->name) == 0) | |
335 | return tsv; | |
336 | ||
337 | return NULL; | |
338 | } | |
339 | ||
340 | void | |
341 | delete_trace_state_variable (const char *name) | |
342 | { | |
343 | struct trace_state_variable *tsv; | |
344 | int ix; | |
345 | ||
346 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
347 | if (strcmp (name, tsv->name) == 0) | |
348 | { | |
40e1c229 | 349 | xfree ((void *)tsv->name); |
f61e138d SS |
350 | VEC_unordered_remove (tsv_s, tvariables, ix); |
351 | return; | |
352 | } | |
353 | ||
354 | warning (_("No trace variable named \"$%s\", not deleting"), name); | |
355 | } | |
356 | ||
357 | /* The 'tvariable' command collects a name and optional expression to | |
358 | evaluate into an initial value. */ | |
359 | ||
360 | void | |
361 | trace_variable_command (char *args, int from_tty) | |
362 | { | |
363 | struct expression *expr; | |
364 | struct cleanup *old_chain; | |
365 | struct internalvar *intvar = NULL; | |
366 | LONGEST initval = 0; | |
367 | struct trace_state_variable *tsv; | |
368 | ||
369 | if (!args || !*args) | |
370 | error_no_arg (_("trace state variable name")); | |
371 | ||
372 | /* All the possible valid arguments are expressions. */ | |
373 | expr = parse_expression (args); | |
374 | old_chain = make_cleanup (free_current_contents, &expr); | |
375 | ||
376 | if (expr->nelts == 0) | |
377 | error (_("No expression?")); | |
378 | ||
379 | /* Only allow two syntaxes; "$name" and "$name=value". */ | |
380 | if (expr->elts[0].opcode == OP_INTERNALVAR) | |
381 | { | |
382 | intvar = expr->elts[1].internalvar; | |
383 | } | |
384 | else if (expr->elts[0].opcode == BINOP_ASSIGN | |
385 | && expr->elts[1].opcode == OP_INTERNALVAR) | |
386 | { | |
387 | intvar = expr->elts[2].internalvar; | |
388 | initval = value_as_long (evaluate_subexpression_type (expr, 4)); | |
389 | } | |
390 | else | |
391 | error (_("Syntax must be $NAME [ = EXPR ]")); | |
392 | ||
393 | if (!intvar) | |
394 | error (_("No name given")); | |
395 | ||
396 | if (strlen (internalvar_name (intvar)) <= 0) | |
397 | error (_("Must supply a non-empty variable name")); | |
398 | ||
399 | /* If the variable already exists, just change its initial value. */ | |
400 | tsv = find_trace_state_variable (internalvar_name (intvar)); | |
401 | if (tsv) | |
402 | { | |
403 | tsv->initial_value = initval; | |
3e43a32a MS |
404 | printf_filtered (_("Trace state variable $%s " |
405 | "now has initial value %s.\n"), | |
f61e138d | 406 | tsv->name, plongest (tsv->initial_value)); |
f90824dc | 407 | do_cleanups (old_chain); |
f61e138d SS |
408 | return; |
409 | } | |
410 | ||
411 | /* Create a new variable. */ | |
412 | tsv = create_trace_state_variable (internalvar_name (intvar)); | |
413 | tsv->initial_value = initval; | |
414 | ||
3e43a32a MS |
415 | printf_filtered (_("Trace state variable $%s " |
416 | "created, with initial value %s.\n"), | |
f61e138d SS |
417 | tsv->name, plongest (tsv->initial_value)); |
418 | ||
419 | do_cleanups (old_chain); | |
420 | } | |
421 | ||
422 | void | |
423 | delete_trace_variable_command (char *args, int from_tty) | |
424 | { | |
2a2287c7 | 425 | int ix; |
f61e138d SS |
426 | char **argv; |
427 | struct cleanup *back_to; | |
f61e138d SS |
428 | |
429 | if (args == NULL) | |
430 | { | |
431 | if (query (_("Delete all trace state variables? "))) | |
432 | VEC_free (tsv_s, tvariables); | |
433 | dont_repeat (); | |
434 | return; | |
435 | } | |
436 | ||
437 | argv = gdb_buildargv (args); | |
438 | back_to = make_cleanup_freeargv (argv); | |
439 | ||
2a2287c7 | 440 | for (ix = 0; argv[ix] != NULL; ix++) |
f61e138d | 441 | { |
2a2287c7 MS |
442 | if (*argv[ix] == '$') |
443 | delete_trace_state_variable (argv[ix] + 1); | |
f61e138d | 444 | else |
2a2287c7 | 445 | warning (_("Name \"%s\" not prefixed with '$', ignoring"), argv[ix]); |
f61e138d SS |
446 | } |
447 | ||
448 | do_cleanups (back_to); | |
449 | ||
450 | dont_repeat (); | |
451 | } | |
452 | ||
40e1c229 VP |
453 | void |
454 | tvariables_info_1 (void) | |
f61e138d SS |
455 | { |
456 | struct trace_state_variable *tsv; | |
457 | int ix; | |
40e1c229 VP |
458 | int count = 0; |
459 | struct cleanup *back_to; | |
79a45e25 | 460 | struct ui_out *uiout = current_uiout; |
f61e138d | 461 | |
40e1c229 | 462 | if (VEC_length (tsv_s, tvariables) == 0 && !ui_out_is_mi_like_p (uiout)) |
f61e138d SS |
463 | { |
464 | printf_filtered (_("No trace state variables.\n")); | |
465 | return; | |
466 | } | |
467 | ||
35b1e5cc | 468 | /* Try to acquire values from the target. */ |
4baf5cf4 | 469 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix, ++count) |
35b1e5cc SS |
470 | tsv->value_known = target_get_trace_state_variable_value (tsv->number, |
471 | &(tsv->value)); | |
472 | ||
40e1c229 VP |
473 | back_to = make_cleanup_ui_out_table_begin_end (uiout, 3, |
474 | count, "trace-variables"); | |
475 | ui_out_table_header (uiout, 15, ui_left, "name", "Name"); | |
476 | ui_out_table_header (uiout, 11, ui_left, "initial", "Initial"); | |
477 | ui_out_table_header (uiout, 11, ui_left, "current", "Current"); | |
478 | ||
479 | ui_out_table_body (uiout); | |
f61e138d SS |
480 | |
481 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
482 | { | |
40e1c229 VP |
483 | struct cleanup *back_to2; |
484 | char *c; | |
485 | char *name; | |
486 | ||
487 | back_to2 = make_cleanup_ui_out_tuple_begin_end (uiout, "variable"); | |
488 | ||
c4f7c687 | 489 | name = concat ("$", tsv->name, (char *) NULL); |
40e1c229 VP |
490 | make_cleanup (xfree, name); |
491 | ui_out_field_string (uiout, "name", name); | |
492 | ui_out_field_string (uiout, "initial", plongest (tsv->initial_value)); | |
493 | ||
f61e138d | 494 | if (tsv->value_known) |
40e1c229 VP |
495 | c = plongest (tsv->value); |
496 | else if (ui_out_is_mi_like_p (uiout)) | |
497 | /* For MI, we prefer not to use magic string constants, but rather | |
498 | omit the field completely. The difference between unknown and | |
499 | undefined does not seem important enough to represent. */ | |
500 | c = NULL; | |
00bf0b85 | 501 | else if (current_trace_status ()->running || traceframe_number >= 0) |
f61e138d | 502 | /* The value is/was defined, but we don't have it. */ |
40e1c229 | 503 | c = "<unknown>"; |
f61e138d SS |
504 | else |
505 | /* It is not meaningful to ask about the value. */ | |
40e1c229 VP |
506 | c = "<undefined>"; |
507 | if (c) | |
508 | ui_out_field_string (uiout, "current", c); | |
509 | ui_out_text (uiout, "\n"); | |
510 | ||
511 | do_cleanups (back_to2); | |
f61e138d | 512 | } |
40e1c229 VP |
513 | |
514 | do_cleanups (back_to); | |
515 | } | |
516 | ||
517 | /* List all the trace state variables. */ | |
518 | ||
519 | static void | |
520 | tvariables_info (char *args, int from_tty) | |
521 | { | |
522 | tvariables_info_1 (); | |
f61e138d SS |
523 | } |
524 | ||
8bf6485c SS |
525 | /* Stash definitions of tsvs into the given file. */ |
526 | ||
527 | void | |
528 | save_trace_state_variables (struct ui_file *fp) | |
529 | { | |
530 | struct trace_state_variable *tsv; | |
531 | int ix; | |
532 | ||
533 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
534 | { | |
535 | fprintf_unfiltered (fp, "tvariable $%s", tsv->name); | |
536 | if (tsv->initial_value) | |
537 | fprintf_unfiltered (fp, " = %s", plongest (tsv->initial_value)); | |
538 | fprintf_unfiltered (fp, "\n"); | |
539 | } | |
540 | } | |
541 | ||
c906108c SS |
542 | /* ACTIONS functions: */ |
543 | ||
c906108c | 544 | /* The three functions: |
c5aa993b JM |
545 | collect_pseudocommand, |
546 | while_stepping_pseudocommand, and | |
547 | end_actions_pseudocommand | |
c906108c SS |
548 | are placeholders for "commands" that are actually ONLY to be used |
549 | within a tracepoint action list. If the actual function is ever called, | |
550 | it means that somebody issued the "command" at the top level, | |
551 | which is always an error. */ | |
552 | ||
1042e4c0 | 553 | void |
fba45db2 | 554 | end_actions_pseudocommand (char *args, int from_tty) |
c906108c | 555 | { |
8a3fe4f8 | 556 | error (_("This command cannot be used at the top level.")); |
c906108c SS |
557 | } |
558 | ||
1042e4c0 | 559 | void |
fba45db2 | 560 | while_stepping_pseudocommand (char *args, int from_tty) |
c906108c | 561 | { |
8a3fe4f8 | 562 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
563 | } |
564 | ||
565 | static void | |
fba45db2 | 566 | collect_pseudocommand (char *args, int from_tty) |
c906108c | 567 | { |
8a3fe4f8 | 568 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
569 | } |
570 | ||
6da95a67 SS |
571 | static void |
572 | teval_pseudocommand (char *args, int from_tty) | |
573 | { | |
574 | error (_("This command can only be used in a tracepoint actions list.")); | |
575 | } | |
576 | ||
c906108c SS |
577 | /* Enter a list of actions for a tracepoint. */ |
578 | static void | |
fba45db2 | 579 | trace_actions_command (char *args, int from_tty) |
c906108c | 580 | { |
d9b3f62e | 581 | struct tracepoint *t; |
a7bdde9e | 582 | struct command_line *l; |
c906108c | 583 | |
197f0a60 | 584 | t = get_tracepoint_by_number (&args, NULL, 1); |
7a292a7a | 585 | if (t) |
c906108c | 586 | { |
a7bdde9e VP |
587 | char *tmpbuf = |
588 | xstrprintf ("Enter actions for tracepoint %d, one per line.", | |
d9b3f62e | 589 | t->base.number); |
a7bdde9e VP |
590 | struct cleanup *cleanups = make_cleanup (xfree, tmpbuf); |
591 | ||
3e43a32a MS |
592 | l = read_command_lines (tmpbuf, from_tty, 1, |
593 | check_tracepoint_command, t); | |
a7bdde9e | 594 | do_cleanups (cleanups); |
d9b3f62e | 595 | breakpoint_set_commands (&t->base, l); |
c906108c | 596 | } |
5c44784c | 597 | /* else just return */ |
c906108c SS |
598 | } |
599 | ||
fff87407 SS |
600 | /* Report the results of checking the agent expression, as errors or |
601 | internal errors. */ | |
602 | ||
603 | static void | |
35c9c7ba | 604 | report_agent_reqs_errors (struct agent_expr *aexpr) |
fff87407 SS |
605 | { |
606 | /* All of the "flaws" are serious bytecode generation issues that | |
607 | should never occur. */ | |
35c9c7ba | 608 | if (aexpr->flaw != agent_flaw_none) |
fff87407 SS |
609 | internal_error (__FILE__, __LINE__, _("expression is malformed")); |
610 | ||
611 | /* If analysis shows a stack underflow, GDB must have done something | |
612 | badly wrong in its bytecode generation. */ | |
35c9c7ba | 613 | if (aexpr->min_height < 0) |
fff87407 SS |
614 | internal_error (__FILE__, __LINE__, |
615 | _("expression has min height < 0")); | |
616 | ||
617 | /* Issue this error if the stack is predicted to get too deep. The | |
618 | limit is rather arbitrary; a better scheme might be for the | |
619 | target to report how much stack it will have available. The | |
620 | depth roughly corresponds to parenthesization, so a limit of 20 | |
621 | amounts to 20 levels of expression nesting, which is actually | |
622 | a pretty big hairy expression. */ | |
35c9c7ba | 623 | if (aexpr->max_height > 20) |
fff87407 SS |
624 | error (_("Expression is too complicated.")); |
625 | } | |
626 | ||
c906108c | 627 | /* worker function */ |
fff87407 | 628 | void |
d9b3f62e | 629 | validate_actionline (char **line, struct breakpoint *b) |
c906108c SS |
630 | { |
631 | struct cmd_list_element *c; | |
632 | struct expression *exp = NULL; | |
c906108c | 633 | struct cleanup *old_chain = NULL; |
9355b391 SS |
634 | char *p, *tmp_p; |
635 | struct bp_location *loc; | |
fff87407 | 636 | struct agent_expr *aexpr; |
d9b3f62e | 637 | struct tracepoint *t = (struct tracepoint *) b; |
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) | |
6710bf39 | 670 | || 0 == strncasecmp ("_ret", p + 1, 4) |
0fb4aa4b | 671 | || 0 == strncasecmp ("_sdata", p + 1, 6)) |
c5aa993b JM |
672 | { |
673 | p = strchr (p, ','); | |
674 | continue; | |
675 | } | |
d183932d | 676 | /* else fall thru, treat p as an expression and parse it! */ |
c5aa993b | 677 | } |
9355b391 | 678 | tmp_p = p; |
d9b3f62e | 679 | for (loc = t->base.loc; loc; loc = loc->next) |
c5aa993b | 680 | { |
9355b391 SS |
681 | p = tmp_p; |
682 | exp = parse_exp_1 (&p, block_for_pc (loc->address), 1); | |
683 | old_chain = make_cleanup (free_current_contents, &exp); | |
684 | ||
685 | if (exp->elts[0].opcode == OP_VAR_VALUE) | |
c5aa993b | 686 | { |
9355b391 SS |
687 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) |
688 | { | |
3e43a32a MS |
689 | error (_("constant `%s' (value %ld) " |
690 | "will not be collected."), | |
fff87407 SS |
691 | SYMBOL_PRINT_NAME (exp->elts[2].symbol), |
692 | SYMBOL_VALUE (exp->elts[2].symbol)); | |
9355b391 | 693 | } |
3e43a32a MS |
694 | else if (SYMBOL_CLASS (exp->elts[2].symbol) |
695 | == LOC_OPTIMIZED_OUT) | |
9355b391 | 696 | { |
3e43a32a MS |
697 | error (_("`%s' is optimized away " |
698 | "and cannot be collected."), | |
fff87407 | 699 | SYMBOL_PRINT_NAME (exp->elts[2].symbol)); |
9355b391 | 700 | } |
c5aa993b | 701 | } |
c906108c | 702 | |
9355b391 SS |
703 | /* We have something to collect, make sure that the expr to |
704 | bytecode translator can handle it and that it's not too | |
705 | long. */ | |
706 | aexpr = gen_trace_for_expr (loc->address, exp); | |
707 | make_cleanup_free_agent_expr (aexpr); | |
c906108c | 708 | |
9355b391 | 709 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
fff87407 | 710 | error (_("Expression is too complicated.")); |
c906108c | 711 | |
35c9c7ba | 712 | ax_reqs (aexpr); |
c906108c | 713 | |
35c9c7ba | 714 | report_agent_reqs_errors (aexpr); |
c906108c | 715 | |
9355b391 SS |
716 | do_cleanups (old_chain); |
717 | } | |
c5aa993b JM |
718 | } |
719 | while (p && *p++ == ','); | |
c906108c | 720 | } |
fff87407 | 721 | |
6da95a67 SS |
722 | else if (cmd_cfunc_eq (c, teval_pseudocommand)) |
723 | { | |
6da95a67 | 724 | do |
c378eb4e MS |
725 | { /* Repeat over a comma-separated list. */ |
726 | QUIT; /* Allow user to bail out with ^C. */ | |
6da95a67 SS |
727 | while (isspace ((int) *p)) |
728 | p++; | |
729 | ||
9355b391 | 730 | tmp_p = p; |
d9b3f62e | 731 | for (loc = t->base.loc; loc; loc = loc->next) |
9355b391 SS |
732 | { |
733 | p = tmp_p; | |
734 | /* Only expressions are allowed for this action. */ | |
735 | exp = parse_exp_1 (&p, block_for_pc (loc->address), 1); | |
736 | old_chain = make_cleanup (free_current_contents, &exp); | |
6da95a67 | 737 | |
9355b391 SS |
738 | /* We have something to evaluate, make sure that the expr to |
739 | bytecode translator can handle it and that it's not too | |
740 | long. */ | |
741 | aexpr = gen_eval_for_expr (loc->address, exp); | |
742 | make_cleanup_free_agent_expr (aexpr); | |
6da95a67 | 743 | |
9355b391 | 744 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
fff87407 SS |
745 | error (_("Expression is too complicated.")); |
746 | ||
35c9c7ba SS |
747 | ax_reqs (aexpr); |
748 | report_agent_reqs_errors (aexpr); | |
6da95a67 | 749 | |
9355b391 SS |
750 | do_cleanups (old_chain); |
751 | } | |
6da95a67 SS |
752 | } |
753 | while (p && *p++ == ','); | |
6da95a67 | 754 | } |
fff87407 | 755 | |
bbaca940 | 756 | else if (cmd_cfunc_eq (c, while_stepping_pseudocommand)) |
c906108c | 757 | { |
c378eb4e | 758 | char *steparg; /* In case warning is necessary. */ |
c906108c | 759 | |
104c1213 | 760 | while (isspace ((int) *p)) |
c906108c SS |
761 | p++; |
762 | steparg = p; | |
763 | ||
fff87407 SS |
764 | if (*p == '\0' || (t->step_count = strtol (p, &p, 0)) == 0) |
765 | error (_("while-stepping step count `%s' is malformed."), *line); | |
c906108c | 766 | } |
fff87407 | 767 | |
bbaca940 | 768 | else if (cmd_cfunc_eq (c, end_actions_pseudocommand)) |
fff87407 SS |
769 | ; |
770 | ||
c906108c | 771 | else |
fff87407 | 772 | error (_("`%s' is not a supported tracepoint action."), *line); |
74b7792f AC |
773 | } |
774 | ||
f50e79a4 JB |
775 | enum { |
776 | memrange_absolute = -1 | |
777 | }; | |
778 | ||
c5aa993b JM |
779 | struct memrange |
780 | { | |
f50e79a4 | 781 | int type; /* memrange_absolute for absolute memory range, |
c378eb4e | 782 | else basereg number. */ |
c906108c SS |
783 | bfd_signed_vma start; |
784 | bfd_signed_vma end; | |
785 | }; | |
786 | ||
c5aa993b JM |
787 | struct collection_list |
788 | { | |
549678da | 789 | unsigned char regs_mask[32]; /* room for up to 256 regs */ |
c5aa993b JM |
790 | long listsize; |
791 | long next_memrange; | |
792 | struct memrange *list; | |
793 | long aexpr_listsize; /* size of array pointed to by expr_list elt */ | |
794 | long next_aexpr_elt; | |
795 | struct agent_expr **aexpr_list; | |
796 | ||
0fb4aa4b PA |
797 | /* True is the user requested a collection of "$_sdata", "static |
798 | tracepoint data". */ | |
799 | int strace_data; | |
c5aa993b JM |
800 | } |
801 | tracepoint_list, stepping_list; | |
c906108c SS |
802 | |
803 | /* MEMRANGE functions: */ | |
804 | ||
a14ed312 | 805 | static int memrange_cmp (const void *, const void *); |
c906108c | 806 | |
c378eb4e | 807 | /* Compare memranges for qsort. */ |
c906108c | 808 | static int |
fba45db2 | 809 | memrange_cmp (const void *va, const void *vb) |
c906108c SS |
810 | { |
811 | const struct memrange *a = va, *b = vb; | |
812 | ||
813 | if (a->type < b->type) | |
814 | return -1; | |
815 | if (a->type > b->type) | |
c5aa993b | 816 | return 1; |
f50e79a4 | 817 | if (a->type == memrange_absolute) |
c906108c | 818 | { |
c5aa993b JM |
819 | if ((bfd_vma) a->start < (bfd_vma) b->start) |
820 | return -1; | |
821 | if ((bfd_vma) a->start > (bfd_vma) b->start) | |
822 | return 1; | |
c906108c SS |
823 | } |
824 | else | |
825 | { | |
c5aa993b | 826 | if (a->start < b->start) |
c906108c | 827 | return -1; |
c5aa993b JM |
828 | if (a->start > b->start) |
829 | return 1; | |
c906108c SS |
830 | } |
831 | return 0; | |
832 | } | |
833 | ||
d183932d | 834 | /* Sort the memrange list using qsort, and merge adjacent memranges. */ |
c906108c | 835 | static void |
fba45db2 | 836 | memrange_sortmerge (struct collection_list *memranges) |
c906108c SS |
837 | { |
838 | int a, b; | |
839 | ||
c5aa993b | 840 | qsort (memranges->list, memranges->next_memrange, |
c906108c SS |
841 | sizeof (struct memrange), memrange_cmp); |
842 | if (memranges->next_memrange > 0) | |
843 | { | |
844 | for (a = 0, b = 1; b < memranges->next_memrange; b++) | |
845 | { | |
1b28d0b3 PA |
846 | /* If memrange b overlaps or is adjacent to memrange a, |
847 | merge them. */ | |
848 | if (memranges->list[a].type == memranges->list[b].type | |
849 | && memranges->list[b].start <= memranges->list[a].end) | |
c906108c | 850 | { |
08807d5a PA |
851 | if (memranges->list[b].end > memranges->list[a].end) |
852 | memranges->list[a].end = memranges->list[b].end; | |
c906108c SS |
853 | continue; /* next b, same a */ |
854 | } | |
855 | a++; /* next a */ | |
856 | if (a != b) | |
c5aa993b | 857 | memcpy (&memranges->list[a], &memranges->list[b], |
c906108c SS |
858 | sizeof (struct memrange)); |
859 | } | |
860 | memranges->next_memrange = a + 1; | |
861 | } | |
862 | } | |
863 | ||
d183932d | 864 | /* Add a register to a collection list. */ |
392a587b | 865 | static void |
fba45db2 | 866 | add_register (struct collection_list *collection, unsigned int regno) |
c906108c SS |
867 | { |
868 | if (info_verbose) | |
869 | printf_filtered ("collect register %d\n", regno); | |
27e06d3e | 870 | if (regno >= (8 * sizeof (collection->regs_mask))) |
8a3fe4f8 | 871 | error (_("Internal: register number %d too large for tracepoint"), |
c906108c | 872 | regno); |
c5aa993b | 873 | collection->regs_mask[regno / 8] |= 1 << (regno % 8); |
c906108c SS |
874 | } |
875 | ||
c378eb4e | 876 | /* Add a memrange to a collection list. */ |
c906108c | 877 | static void |
d183932d MS |
878 | add_memrange (struct collection_list *memranges, |
879 | int type, bfd_signed_vma base, | |
fba45db2 | 880 | unsigned long len) |
c906108c SS |
881 | { |
882 | if (info_verbose) | |
104c1213 JM |
883 | { |
884 | printf_filtered ("(%d,", type); | |
885 | printf_vma (base); | |
886 | printf_filtered (",%ld)\n", len); | |
887 | } | |
888 | ||
f50e79a4 | 889 | /* type: memrange_absolute == memory, other n == basereg */ |
c5aa993b | 890 | memranges->list[memranges->next_memrange].type = type; |
d183932d | 891 | /* base: addr if memory, offset if reg relative. */ |
c906108c SS |
892 | memranges->list[memranges->next_memrange].start = base; |
893 | /* len: we actually save end (base + len) for convenience */ | |
c5aa993b | 894 | memranges->list[memranges->next_memrange].end = base + len; |
c906108c SS |
895 | memranges->next_memrange++; |
896 | if (memranges->next_memrange >= memranges->listsize) | |
897 | { | |
898 | memranges->listsize *= 2; | |
c5aa993b | 899 | memranges->list = xrealloc (memranges->list, |
c906108c SS |
900 | memranges->listsize); |
901 | } | |
902 | ||
3e43a32a | 903 | if (type != memrange_absolute) /* Better collect the base register! */ |
c906108c SS |
904 | add_register (memranges, type); |
905 | } | |
906 | ||
d183932d | 907 | /* Add a symbol to a collection list. */ |
c906108c | 908 | static void |
d183932d MS |
909 | collect_symbol (struct collection_list *collect, |
910 | struct symbol *sym, | |
a6d9a66e | 911 | struct gdbarch *gdbarch, |
0936ad1d SS |
912 | long frame_regno, long frame_offset, |
913 | CORE_ADDR scope) | |
c906108c | 914 | { |
c5aa993b | 915 | unsigned long len; |
104c1213 | 916 | unsigned int reg; |
c906108c | 917 | bfd_signed_vma offset; |
400c6af0 | 918 | int treat_as_expr = 0; |
c906108c | 919 | |
c5aa993b JM |
920 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
921 | switch (SYMBOL_CLASS (sym)) | |
922 | { | |
923 | default: | |
924 | printf_filtered ("%s: don't know symbol class %d\n", | |
3567439c | 925 | SYMBOL_PRINT_NAME (sym), |
d183932d | 926 | SYMBOL_CLASS (sym)); |
c5aa993b JM |
927 | break; |
928 | case LOC_CONST: | |
104c1213 | 929 | printf_filtered ("constant %s (value %ld) will not be collected.\n", |
3567439c | 930 | SYMBOL_PRINT_NAME (sym), SYMBOL_VALUE (sym)); |
c5aa993b JM |
931 | break; |
932 | case LOC_STATIC: | |
933 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
934 | if (info_verbose) | |
104c1213 JM |
935 | { |
936 | char tmp[40]; | |
937 | ||
938 | sprintf_vma (tmp, offset); | |
939 | printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", | |
3567439c | 940 | SYMBOL_PRINT_NAME (sym), len, |
d183932d | 941 | tmp /* address */); |
104c1213 | 942 | } |
400c6af0 SS |
943 | /* A struct may be a C++ class with static fields, go to general |
944 | expression handling. */ | |
945 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT) | |
946 | treat_as_expr = 1; | |
947 | else | |
948 | add_memrange (collect, memrange_absolute, offset, len); | |
c5aa993b JM |
949 | break; |
950 | case LOC_REGISTER: | |
a6d9a66e | 951 | reg = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); |
c5aa993b | 952 | if (info_verbose) |
d183932d | 953 | printf_filtered ("LOC_REG[parm] %s: ", |
3567439c | 954 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 955 | add_register (collect, reg); |
d183932d MS |
956 | /* Check for doubles stored in two registers. */ |
957 | /* FIXME: how about larger types stored in 3 or more regs? */ | |
c5aa993b | 958 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT && |
a6d9a66e | 959 | len > register_size (gdbarch, reg)) |
c5aa993b JM |
960 | add_register (collect, reg + 1); |
961 | break; | |
962 | case LOC_REF_ARG: | |
963 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); | |
964 | printf_filtered (" (will not collect %s)\n", | |
3567439c | 965 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
966 | break; |
967 | case LOC_ARG: | |
968 | reg = frame_regno; | |
969 | offset = frame_offset + SYMBOL_VALUE (sym); | |
970 | if (info_verbose) | |
971 | { | |
104c1213 | 972 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 973 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
974 | printf_vma (offset); |
975 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
976 | } |
977 | add_memrange (collect, reg, offset, len); | |
978 | break; | |
979 | case LOC_REGPARM_ADDR: | |
980 | reg = SYMBOL_VALUE (sym); | |
981 | offset = 0; | |
982 | if (info_verbose) | |
983 | { | |
104c1213 | 984 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ", |
3567439c | 985 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
986 | printf_vma (offset); |
987 | printf_filtered (" from reg %d\n", reg); | |
c5aa993b JM |
988 | } |
989 | add_memrange (collect, reg, offset, len); | |
990 | break; | |
991 | case LOC_LOCAL: | |
c5aa993b JM |
992 | reg = frame_regno; |
993 | offset = frame_offset + SYMBOL_VALUE (sym); | |
994 | if (info_verbose) | |
995 | { | |
104c1213 | 996 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 997 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
998 | printf_vma (offset); |
999 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
1000 | } |
1001 | add_memrange (collect, reg, offset, len); | |
1002 | break; | |
a0405854 | 1003 | |
c5aa993b | 1004 | case LOC_UNRESOLVED: |
a0405854 | 1005 | treat_as_expr = 1; |
c5aa993b | 1006 | break; |
a0405854 | 1007 | |
c5aa993b | 1008 | case LOC_OPTIMIZED_OUT: |
8e1a459b | 1009 | printf_filtered ("%s has been optimized out of existence.\n", |
3567439c | 1010 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 1011 | break; |
0936ad1d SS |
1012 | |
1013 | case LOC_COMPUTED: | |
400c6af0 | 1014 | treat_as_expr = 1; |
0936ad1d | 1015 | break; |
c5aa993b | 1016 | } |
400c6af0 SS |
1017 | |
1018 | /* Expressions are the most general case. */ | |
1019 | if (treat_as_expr) | |
1020 | { | |
1021 | struct agent_expr *aexpr; | |
1022 | struct cleanup *old_chain1 = NULL; | |
400c6af0 SS |
1023 | |
1024 | aexpr = gen_trace_for_var (scope, gdbarch, sym); | |
1025 | ||
1026 | /* It can happen that the symbol is recorded as a computed | |
1027 | location, but it's been optimized away and doesn't actually | |
1028 | have a location expression. */ | |
1029 | if (!aexpr) | |
1030 | { | |
1031 | printf_filtered ("%s has been optimized out of existence.\n", | |
1032 | SYMBOL_PRINT_NAME (sym)); | |
1033 | return; | |
1034 | } | |
1035 | ||
1036 | old_chain1 = make_cleanup_free_agent_expr (aexpr); | |
1037 | ||
35c9c7ba | 1038 | ax_reqs (aexpr); |
fff87407 | 1039 | |
35c9c7ba | 1040 | report_agent_reqs_errors (aexpr); |
400c6af0 SS |
1041 | |
1042 | discard_cleanups (old_chain1); | |
1043 | add_aexpr (collect, aexpr); | |
1044 | ||
c378eb4e | 1045 | /* Take care of the registers. */ |
35c9c7ba | 1046 | if (aexpr->reg_mask_len > 0) |
400c6af0 SS |
1047 | { |
1048 | int ndx1, ndx2; | |
1049 | ||
35c9c7ba | 1050 | for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++) |
400c6af0 | 1051 | { |
c378eb4e | 1052 | QUIT; /* Allow user to bail out with ^C. */ |
35c9c7ba | 1053 | if (aexpr->reg_mask[ndx1] != 0) |
400c6af0 | 1054 | { |
c378eb4e | 1055 | /* Assume chars have 8 bits. */ |
400c6af0 | 1056 | for (ndx2 = 0; ndx2 < 8; ndx2++) |
35c9c7ba | 1057 | if (aexpr->reg_mask[ndx1] & (1 << ndx2)) |
c378eb4e | 1058 | /* It's used -- record it. */ |
400c6af0 SS |
1059 | add_register (collect, ndx1 * 8 + ndx2); |
1060 | } | |
1061 | } | |
1062 | } | |
1063 | } | |
c906108c SS |
1064 | } |
1065 | ||
2c58c0a9 PA |
1066 | /* Data to be passed around in the calls to the locals and args |
1067 | iterators. */ | |
1068 | ||
1069 | struct add_local_symbols_data | |
1070 | { | |
1071 | struct collection_list *collect; | |
1072 | struct gdbarch *gdbarch; | |
1073 | CORE_ADDR pc; | |
1074 | long frame_regno; | |
1075 | long frame_offset; | |
1076 | int count; | |
1077 | }; | |
1078 | ||
c378eb4e | 1079 | /* The callback for the locals and args iterators. */ |
2c58c0a9 PA |
1080 | |
1081 | static void | |
1082 | do_collect_symbol (const char *print_name, | |
1083 | struct symbol *sym, | |
1084 | void *cb_data) | |
1085 | { | |
1086 | struct add_local_symbols_data *p = cb_data; | |
1087 | ||
1088 | collect_symbol (p->collect, sym, p->gdbarch, p->frame_regno, | |
1089 | p->frame_offset, p->pc); | |
1090 | p->count++; | |
1091 | } | |
1092 | ||
c378eb4e | 1093 | /* Add all locals (or args) symbols to collection list. */ |
c906108c | 1094 | static void |
a6d9a66e UW |
1095 | add_local_symbols (struct collection_list *collect, |
1096 | struct gdbarch *gdbarch, CORE_ADDR pc, | |
fba45db2 | 1097 | long frame_regno, long frame_offset, int type) |
c906108c | 1098 | { |
c5aa993b | 1099 | struct block *block; |
2c58c0a9 PA |
1100 | struct add_local_symbols_data cb_data; |
1101 | ||
1102 | cb_data.collect = collect; | |
1103 | cb_data.gdbarch = gdbarch; | |
1104 | cb_data.pc = pc; | |
1105 | cb_data.frame_regno = frame_regno; | |
1106 | cb_data.frame_offset = frame_offset; | |
1107 | cb_data.count = 0; | |
c906108c | 1108 | |
2c58c0a9 | 1109 | if (type == 'L') |
c906108c | 1110 | { |
2c58c0a9 PA |
1111 | block = block_for_pc (pc); |
1112 | if (block == NULL) | |
c906108c | 1113 | { |
2c58c0a9 PA |
1114 | warning (_("Can't collect locals; " |
1115 | "no symbol table info available.\n")); | |
1116 | return; | |
c906108c | 1117 | } |
2c58c0a9 PA |
1118 | |
1119 | iterate_over_block_local_vars (block, do_collect_symbol, &cb_data); | |
1120 | if (cb_data.count == 0) | |
1121 | warning (_("No locals found in scope.")); | |
1122 | } | |
1123 | else | |
1124 | { | |
1125 | pc = get_pc_function_start (pc); | |
1126 | block = block_for_pc (pc); | |
1127 | if (block == NULL) | |
1128 | { | |
b37520b6 | 1129 | warning (_("Can't collect args; no symbol table info available.")); |
2c58c0a9 PA |
1130 | return; |
1131 | } | |
1132 | ||
1133 | iterate_over_block_arg_vars (block, do_collect_symbol, &cb_data); | |
1134 | if (cb_data.count == 0) | |
1135 | warning (_("No args found in scope.")); | |
c906108c | 1136 | } |
c906108c SS |
1137 | } |
1138 | ||
0fb4aa4b PA |
1139 | static void |
1140 | add_static_trace_data (struct collection_list *collection) | |
1141 | { | |
1142 | if (info_verbose) | |
1143 | printf_filtered ("collect static trace data\n"); | |
1144 | collection->strace_data = 1; | |
1145 | } | |
1146 | ||
c906108c SS |
1147 | /* worker function */ |
1148 | static void | |
fba45db2 | 1149 | clear_collection_list (struct collection_list *list) |
c906108c SS |
1150 | { |
1151 | int ndx; | |
1152 | ||
1153 | list->next_memrange = 0; | |
1154 | for (ndx = 0; ndx < list->next_aexpr_elt; ndx++) | |
1155 | { | |
c5aa993b | 1156 | free_agent_expr (list->aexpr_list[ndx]); |
c906108c SS |
1157 | list->aexpr_list[ndx] = NULL; |
1158 | } | |
1159 | list->next_aexpr_elt = 0; | |
1160 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); | |
0fb4aa4b | 1161 | list->strace_data = 0; |
c906108c SS |
1162 | } |
1163 | ||
c378eb4e | 1164 | /* Reduce a collection list to string form (for gdb protocol). */ |
c906108c | 1165 | static char ** |
fba45db2 | 1166 | stringify_collection_list (struct collection_list *list, char *string) |
c906108c SS |
1167 | { |
1168 | char temp_buf[2048]; | |
104c1213 | 1169 | char tmp2[40]; |
c906108c SS |
1170 | int count; |
1171 | int ndx = 0; | |
1172 | char *(*str_list)[]; | |
1173 | char *end; | |
c5aa993b | 1174 | long i; |
c906108c | 1175 | |
0fb4aa4b | 1176 | count = 1 + 1 + list->next_memrange + list->next_aexpr_elt + 1; |
c5aa993b | 1177 | str_list = (char *(*)[]) xmalloc (count * sizeof (char *)); |
c906108c | 1178 | |
0fb4aa4b PA |
1179 | if (list->strace_data) |
1180 | { | |
1181 | if (info_verbose) | |
1182 | printf_filtered ("\nCollecting static trace data\n"); | |
1183 | end = temp_buf; | |
1184 | *end++ = 'L'; | |
1185 | (*str_list)[ndx] = savestring (temp_buf, end - temp_buf); | |
1186 | ndx++; | |
1187 | } | |
1188 | ||
c906108c | 1189 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) |
c378eb4e | 1190 | if (list->regs_mask[i] != 0) /* Skip leading zeroes in regs_mask. */ |
c906108c | 1191 | break; |
c378eb4e | 1192 | if (list->regs_mask[i] != 0) /* Prepare to send regs_mask to the stub. */ |
c906108c SS |
1193 | { |
1194 | if (info_verbose) | |
1195 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
1196 | end = temp_buf; | |
c5aa993b | 1197 | *end++ = 'R'; |
c906108c SS |
1198 | for (; i >= 0; i--) |
1199 | { | |
c378eb4e | 1200 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c SS |
1201 | if (info_verbose) |
1202 | printf_filtered ("%02X", list->regs_mask[i]); | |
c5aa993b | 1203 | sprintf (end, "%02X", list->regs_mask[i]); |
c906108c SS |
1204 | end += 2; |
1205 | } | |
1b36a34b | 1206 | (*str_list)[ndx] = xstrdup (temp_buf); |
c906108c SS |
1207 | ndx++; |
1208 | } | |
1209 | if (info_verbose) | |
1210 | printf_filtered ("\n"); | |
1211 | if (list->next_memrange > 0 && info_verbose) | |
1212 | printf_filtered ("Collecting memranges: \n"); | |
1213 | for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++) | |
1214 | { | |
c378eb4e | 1215 | QUIT; /* Allow user to bail out with ^C. */ |
104c1213 | 1216 | sprintf_vma (tmp2, list->list[i].start); |
c906108c | 1217 | if (info_verbose) |
104c1213 JM |
1218 | { |
1219 | printf_filtered ("(%d, %s, %ld)\n", | |
1220 | list->list[i].type, | |
1221 | tmp2, | |
1222 | (long) (list->list[i].end - list->list[i].start)); | |
1223 | } | |
c906108c SS |
1224 | if (count + 27 > MAX_AGENT_EXPR_LEN) |
1225 | { | |
c5aa993b | 1226 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1227 | ndx++; |
1228 | count = 0; | |
1229 | end = temp_buf; | |
1230 | } | |
104c1213 | 1231 | |
d1948716 JB |
1232 | { |
1233 | bfd_signed_vma length = list->list[i].end - list->list[i].start; | |
1234 | ||
1235 | /* The "%X" conversion specifier expects an unsigned argument, | |
f50e79a4 JB |
1236 | so passing -1 (memrange_absolute) to it directly gives you |
1237 | "FFFFFFFF" (or more, depending on sizeof (unsigned)). | |
1238 | Special-case it. */ | |
1239 | if (list->list[i].type == memrange_absolute) | |
d1948716 JB |
1240 | sprintf (end, "M-1,%s,%lX", tmp2, (long) length); |
1241 | else | |
1242 | sprintf (end, "M%X,%s,%lX", list->list[i].type, tmp2, (long) length); | |
1243 | } | |
104c1213 | 1244 | |
c906108c | 1245 | count += strlen (end); |
3ffbc0a5 | 1246 | end = temp_buf + count; |
c906108c SS |
1247 | } |
1248 | ||
1249 | for (i = 0; i < list->next_aexpr_elt; i++) | |
1250 | { | |
c378eb4e | 1251 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c SS |
1252 | if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN) |
1253 | { | |
c5aa993b | 1254 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1255 | ndx++; |
1256 | count = 0; | |
1257 | end = temp_buf; | |
1258 | } | |
1259 | sprintf (end, "X%08X,", list->aexpr_list[i]->len); | |
1260 | end += 10; /* 'X' + 8 hex digits + ',' */ | |
1261 | count += 10; | |
1262 | ||
d183932d MS |
1263 | end = mem2hex (list->aexpr_list[i]->buf, |
1264 | end, list->aexpr_list[i]->len); | |
c906108c SS |
1265 | count += 2 * list->aexpr_list[i]->len; |
1266 | } | |
1267 | ||
1268 | if (count != 0) | |
1269 | { | |
c5aa993b | 1270 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1271 | ndx++; |
1272 | count = 0; | |
1273 | end = temp_buf; | |
1274 | } | |
1275 | (*str_list)[ndx] = NULL; | |
1276 | ||
1277 | if (ndx == 0) | |
27e06d3e | 1278 | { |
6c761d9c | 1279 | xfree (str_list); |
27e06d3e MS |
1280 | return NULL; |
1281 | } | |
c906108c SS |
1282 | else |
1283 | return *str_list; | |
1284 | } | |
1285 | ||
a7bdde9e VP |
1286 | |
1287 | static void | |
1288 | encode_actions_1 (struct command_line *action, | |
1289 | struct breakpoint *t, | |
1290 | struct bp_location *tloc, | |
1291 | int frame_reg, | |
1292 | LONGEST frame_offset, | |
1293 | struct collection_list *collect, | |
1294 | struct collection_list *stepping_list) | |
c906108c | 1295 | { |
c5aa993b JM |
1296 | char *action_exp; |
1297 | struct expression *exp = NULL; | |
104c1213 | 1298 | int i; |
f976f6d4 | 1299 | struct value *tempval; |
c906108c SS |
1300 | struct cmd_list_element *cmd; |
1301 | struct agent_expr *aexpr; | |
236f1d4d SS |
1302 | |
1303 | for (; action; action = action->next) | |
c906108c | 1304 | { |
c378eb4e | 1305 | QUIT; /* Allow user to bail out with ^C. */ |
a7bdde9e | 1306 | action_exp = action->line; |
104c1213 | 1307 | while (isspace ((int) *action_exp)) |
c906108c SS |
1308 | action_exp++; |
1309 | ||
c906108c SS |
1310 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
1311 | if (cmd == 0) | |
8a3fe4f8 | 1312 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 1313 | |
bbaca940 | 1314 | if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c | 1315 | { |
c5aa993b | 1316 | do |
c378eb4e MS |
1317 | { /* Repeat over a comma-separated list. */ |
1318 | QUIT; /* Allow user to bail out with ^C. */ | |
104c1213 | 1319 | while (isspace ((int) *action_exp)) |
c5aa993b | 1320 | action_exp++; |
c906108c | 1321 | |
c5aa993b JM |
1322 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1323 | { | |
a6d9a66e | 1324 | for (i = 0; i < gdbarch_num_regs (t->gdbarch); i++) |
c5aa993b JM |
1325 | add_register (collect, i); |
1326 | action_exp = strchr (action_exp, ','); /* more? */ | |
1327 | } | |
1328 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1329 | { | |
1330 | add_local_symbols (collect, | |
a6d9a66e | 1331 | t->gdbarch, |
9355b391 | 1332 | tloc->address, |
c5aa993b JM |
1333 | frame_reg, |
1334 | frame_offset, | |
1335 | 'A'); | |
1336 | action_exp = strchr (action_exp, ','); /* more? */ | |
1337 | } | |
1338 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1339 | { | |
1340 | add_local_symbols (collect, | |
a6d9a66e | 1341 | t->gdbarch, |
9355b391 | 1342 | tloc->address, |
c5aa993b JM |
1343 | frame_reg, |
1344 | frame_offset, | |
1345 | 'L'); | |
1346 | action_exp = strchr (action_exp, ','); /* more? */ | |
1347 | } | |
6710bf39 SS |
1348 | else if (0 == strncasecmp ("$_ret", action_exp, 5)) |
1349 | { | |
1350 | struct cleanup *old_chain1 = NULL; | |
1351 | ||
1352 | aexpr = gen_trace_for_return_address (tloc->address, | |
1353 | t->gdbarch); | |
1354 | ||
1355 | old_chain1 = make_cleanup_free_agent_expr (aexpr); | |
1356 | ||
1357 | ax_reqs (aexpr); | |
1358 | report_agent_reqs_errors (aexpr); | |
1359 | ||
1360 | discard_cleanups (old_chain1); | |
1361 | add_aexpr (collect, aexpr); | |
1362 | ||
1363 | /* take care of the registers */ | |
1364 | if (aexpr->reg_mask_len > 0) | |
1365 | { | |
1366 | int ndx1, ndx2; | |
1367 | ||
1368 | for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++) | |
1369 | { | |
1370 | QUIT; /* allow user to bail out with ^C */ | |
1371 | if (aexpr->reg_mask[ndx1] != 0) | |
1372 | { | |
1373 | /* assume chars have 8 bits */ | |
1374 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
1375 | if (aexpr->reg_mask[ndx1] & (1 << ndx2)) | |
1376 | /* it's used -- record it */ | |
1377 | add_register (collect, | |
1378 | ndx1 * 8 + ndx2); | |
1379 | } | |
1380 | } | |
1381 | } | |
1382 | ||
1383 | action_exp = strchr (action_exp, ','); /* more? */ | |
1384 | } | |
0fb4aa4b PA |
1385 | else if (0 == strncasecmp ("$_sdata", action_exp, 7)) |
1386 | { | |
1387 | add_static_trace_data (collect); | |
1388 | action_exp = strchr (action_exp, ','); /* more? */ | |
1389 | } | |
c5aa993b JM |
1390 | else |
1391 | { | |
1392 | unsigned long addr, len; | |
1393 | struct cleanup *old_chain = NULL; | |
1394 | struct cleanup *old_chain1 = NULL; | |
c5aa993b | 1395 | |
75ac9d7b | 1396 | exp = parse_exp_1 (&action_exp, |
9355b391 | 1397 | block_for_pc (tloc->address), 1); |
74b7792f | 1398 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 1399 | |
c5aa993b JM |
1400 | switch (exp->elts[0].opcode) |
1401 | { | |
1402 | case OP_REGISTER: | |
67f3407f DJ |
1403 | { |
1404 | const char *name = &exp->elts[2].string; | |
1405 | ||
a6d9a66e | 1406 | i = user_reg_map_name_to_regnum (t->gdbarch, |
029a67e4 | 1407 | name, strlen (name)); |
67f3407f DJ |
1408 | if (i == -1) |
1409 | internal_error (__FILE__, __LINE__, | |
1410 | _("Register $%s not available"), | |
1411 | name); | |
1412 | if (info_verbose) | |
1413 | printf_filtered ("OP_REGISTER: "); | |
1414 | add_register (collect, i); | |
1415 | break; | |
1416 | } | |
c5aa993b JM |
1417 | |
1418 | case UNOP_MEMVAL: | |
c378eb4e | 1419 | /* Safe because we know it's a simple expression. */ |
c5aa993b | 1420 | tempval = evaluate_expression (exp); |
42ae5230 | 1421 | addr = value_address (tempval); |
c5aa993b | 1422 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); |
f50e79a4 | 1423 | add_memrange (collect, memrange_absolute, addr, len); |
c5aa993b JM |
1424 | break; |
1425 | ||
1426 | case OP_VAR_VALUE: | |
1427 | collect_symbol (collect, | |
1428 | exp->elts[2].symbol, | |
a6d9a66e | 1429 | t->gdbarch, |
c5aa993b | 1430 | frame_reg, |
0936ad1d | 1431 | frame_offset, |
9355b391 | 1432 | tloc->address); |
c5aa993b JM |
1433 | break; |
1434 | ||
c378eb4e | 1435 | default: /* Full-fledged expression. */ |
9355b391 | 1436 | aexpr = gen_trace_for_expr (tloc->address, exp); |
c5aa993b | 1437 | |
f23d52e0 | 1438 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
c5aa993b | 1439 | |
35c9c7ba | 1440 | ax_reqs (aexpr); |
c5aa993b | 1441 | |
35c9c7ba | 1442 | report_agent_reqs_errors (aexpr); |
c5aa993b JM |
1443 | |
1444 | discard_cleanups (old_chain1); | |
1445 | add_aexpr (collect, aexpr); | |
1446 | ||
c378eb4e | 1447 | /* Take care of the registers. */ |
35c9c7ba | 1448 | if (aexpr->reg_mask_len > 0) |
c906108c | 1449 | { |
c5aa993b JM |
1450 | int ndx1; |
1451 | int ndx2; | |
1452 | ||
35c9c7ba | 1453 | for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++) |
c906108c | 1454 | { |
c378eb4e | 1455 | QUIT; /* Allow user to bail out with ^C. */ |
35c9c7ba | 1456 | if (aexpr->reg_mask[ndx1] != 0) |
c5aa993b | 1457 | { |
c378eb4e | 1458 | /* Assume chars have 8 bits. */ |
c5aa993b | 1459 | for (ndx2 = 0; ndx2 < 8; ndx2++) |
35c9c7ba | 1460 | if (aexpr->reg_mask[ndx1] & (1 << ndx2)) |
c378eb4e | 1461 | /* It's used -- record it. */ |
d183932d MS |
1462 | add_register (collect, |
1463 | ndx1 * 8 + ndx2); | |
c5aa993b | 1464 | } |
c906108c SS |
1465 | } |
1466 | } | |
c5aa993b JM |
1467 | break; |
1468 | } /* switch */ | |
1469 | do_cleanups (old_chain); | |
1470 | } /* do */ | |
1471 | } | |
1472 | while (action_exp && *action_exp++ == ','); | |
1473 | } /* if */ | |
6da95a67 SS |
1474 | else if (cmd_cfunc_eq (cmd, teval_pseudocommand)) |
1475 | { | |
1476 | do | |
c378eb4e MS |
1477 | { /* Repeat over a comma-separated list. */ |
1478 | QUIT; /* Allow user to bail out with ^C. */ | |
6da95a67 SS |
1479 | while (isspace ((int) *action_exp)) |
1480 | action_exp++; | |
1481 | ||
1482 | { | |
6da95a67 SS |
1483 | struct cleanup *old_chain = NULL; |
1484 | struct cleanup *old_chain1 = NULL; | |
6da95a67 SS |
1485 | |
1486 | exp = parse_exp_1 (&action_exp, | |
9355b391 | 1487 | block_for_pc (tloc->address), 1); |
6da95a67 SS |
1488 | old_chain = make_cleanup (free_current_contents, &exp); |
1489 | ||
9355b391 | 1490 | aexpr = gen_eval_for_expr (tloc->address, exp); |
6da95a67 SS |
1491 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
1492 | ||
35c9c7ba SS |
1493 | ax_reqs (aexpr); |
1494 | report_agent_reqs_errors (aexpr); | |
6da95a67 SS |
1495 | |
1496 | discard_cleanups (old_chain1); | |
1497 | /* Even though we're not officially collecting, add | |
1498 | to the collect list anyway. */ | |
1499 | add_aexpr (collect, aexpr); | |
1500 | ||
1501 | do_cleanups (old_chain); | |
1502 | } /* do */ | |
1503 | } | |
1504 | while (action_exp && *action_exp++ == ','); | |
1505 | } /* if */ | |
bbaca940 | 1506 | else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 1507 | { |
a7bdde9e VP |
1508 | /* We check against nested while-stepping when setting |
1509 | breakpoint action, so no way to run into nested | |
1510 | here. */ | |
1511 | gdb_assert (stepping_list); | |
1512 | ||
2a2287c7 MS |
1513 | encode_actions_1 (action->body_list[0], t, tloc, frame_reg, |
1514 | frame_offset, stepping_list, NULL); | |
c906108c | 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; | |
d9b3f62e | 1602 | struct breakpoint *b; |
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 | ||
d9b3f62e | 1615 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++) |
76a2b958 | 1616 | { |
d9b3f62e PA |
1617 | struct tracepoint *t = (struct tracepoint *) b; |
1618 | ||
1619 | if (b->enable_state == bp_enabled) | |
d914c394 SS |
1620 | any_enabled = 1; |
1621 | ||
d9b3f62e | 1622 | if ((b->type == bp_fast_tracepoint |
d914c394 SS |
1623 | ? may_insert_fast_tracepoints |
1624 | : may_insert_tracepoints)) | |
1625 | ++num_to_download; | |
1626 | else | |
1627 | warning (_("May not insert %stracepoints, skipping tracepoint %d"), | |
d9b3f62e | 1628 | (b->type == bp_fast_tracepoint ? "fast " : ""), b->number); |
76a2b958 SS |
1629 | } |
1630 | ||
76a2b958 SS |
1631 | if (!any_enabled) |
1632 | { | |
d248b706 KY |
1633 | if (target_supports_enable_disable_tracepoint ()) |
1634 | warning (_("No tracepoints enabled")); | |
1635 | else | |
1636 | { | |
1637 | /* No point in tracing with only disabled tracepoints that | |
1638 | cannot be re-enabled. */ | |
1639 | VEC_free (breakpoint_p, tp_vec); | |
1640 | error (_("No tracepoints enabled, not starting trace")); | |
1641 | } | |
76a2b958 SS |
1642 | } |
1643 | ||
d914c394 SS |
1644 | if (num_to_download <= 0) |
1645 | { | |
1646 | VEC_free (breakpoint_p, tp_vec); | |
1647 | error (_("No tracepoints that may be downloaded, not starting trace")); | |
1648 | } | |
1649 | ||
76a2b958 SS |
1650 | target_trace_init (); |
1651 | ||
d9b3f62e | 1652 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++) |
7a697b8d | 1653 | { |
d9b3f62e PA |
1654 | struct tracepoint *t = (struct tracepoint *) b; |
1655 | ||
1656 | if ((b->type == bp_fast_tracepoint | |
d914c394 SS |
1657 | ? !may_insert_fast_tracepoints |
1658 | : !may_insert_tracepoints)) | |
1659 | continue; | |
1660 | ||
35b1e5cc | 1661 | t->number_on_target = 0; |
d9b3f62e PA |
1662 | target_download_tracepoint (b); |
1663 | t->number_on_target = b->number; | |
7a697b8d | 1664 | } |
35b1e5cc | 1665 | VEC_free (breakpoint_p, tp_vec); |
76a2b958 | 1666 | |
00bf0b85 | 1667 | /* Send down all the trace state variables too. */ |
35b1e5cc | 1668 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) |
782b2b07 | 1669 | { |
00bf0b85 | 1670 | target_download_trace_state_variable (tsv); |
782b2b07 | 1671 | } |
35b1e5cc SS |
1672 | |
1673 | /* Tell target to treat text-like sections as transparent. */ | |
1674 | target_trace_set_readonly_regions (); | |
4daf5ac0 SS |
1675 | /* Set some mode flags. */ |
1676 | target_set_disconnected_tracing (disconnected_tracing); | |
1677 | target_set_circular_trace_buffer (circular_trace_buffer); | |
1042e4c0 | 1678 | |
35b1e5cc SS |
1679 | /* Now insert traps and begin collecting data. */ |
1680 | target_trace_start (); | |
1042e4c0 | 1681 | |
35b1e5cc SS |
1682 | /* Reset our local state. */ |
1683 | set_traceframe_num (-1); | |
1684 | set_tracepoint_num (-1); | |
1685 | set_traceframe_context (NULL); | |
00bf0b85 | 1686 | current_trace_status()->running = 1; |
b3b9301e | 1687 | clear_traceframe_info (); |
1042e4c0 SS |
1688 | } |
1689 | ||
f224b49d VP |
1690 | /* tstart command: |
1691 | ||
1692 | Tell target to clear any previous trace experiment. | |
1693 | Walk the list of tracepoints, and send them (and their actions) | |
1694 | to the target. If no errors, | |
1695 | Tell target to start a new trace experiment. */ | |
1696 | ||
1697 | static void | |
1698 | trace_start_command (char *args, int from_tty) | |
1699 | { | |
1700 | dont_repeat (); /* Like "run", dangerous to repeat accidentally. */ | |
1701 | ||
615bcdef SS |
1702 | if (current_trace_status ()->running) |
1703 | { | |
1704 | if (from_tty | |
1705 | && !query (_("A trace is running already. Start a new run? "))) | |
1706 | error (_("New trace run not started.")); | |
1707 | } | |
1708 | ||
f224b49d VP |
1709 | start_tracing (); |
1710 | } | |
1711 | ||
c906108c SS |
1712 | /* tstop command */ |
1713 | static void | |
fba45db2 | 1714 | trace_stop_command (char *args, int from_tty) |
d183932d | 1715 | { |
615bcdef SS |
1716 | if (!current_trace_status ()->running) |
1717 | error (_("Trace is not running.")); | |
1718 | ||
35b1e5cc | 1719 | stop_tracing (); |
c906108c SS |
1720 | } |
1721 | ||
d5551862 | 1722 | void |
f224b49d | 1723 | stop_tracing (void) |
d5551862 | 1724 | { |
35b1e5cc | 1725 | target_trace_stop (); |
c378eb4e | 1726 | /* Should change in response to reply? */ |
00bf0b85 | 1727 | current_trace_status ()->running = 0; |
d5551862 SS |
1728 | } |
1729 | ||
c906108c SS |
1730 | /* tstatus command */ |
1731 | static void | |
fba45db2 | 1732 | trace_status_command (char *args, int from_tty) |
d183932d | 1733 | { |
00bf0b85 SS |
1734 | struct trace_status *ts = current_trace_status (); |
1735 | int status; | |
35b1e5cc | 1736 | |
00bf0b85 SS |
1737 | status = target_get_trace_status (ts); |
1738 | ||
1739 | if (status == -1) | |
1740 | { | |
1741 | if (ts->from_file) | |
1742 | printf_filtered (_("Using a trace file.\n")); | |
1743 | else | |
1744 | { | |
1745 | printf_filtered (_("Trace can not be run on this target.\n")); | |
1746 | return; | |
1747 | } | |
1748 | } | |
1749 | ||
1750 | if (!ts->running_known) | |
1751 | { | |
1752 | printf_filtered (_("Run/stop status is unknown.\n")); | |
1753 | } | |
1754 | else if (ts->running) | |
c906108c | 1755 | { |
35b1e5cc | 1756 | printf_filtered (_("Trace is running on the target.\n")); |
c906108c SS |
1757 | } |
1758 | else | |
00bf0b85 SS |
1759 | { |
1760 | switch (ts->stop_reason) | |
1761 | { | |
1762 | case trace_never_run: | |
1763 | printf_filtered (_("No trace has been run on the target.\n")); | |
1764 | break; | |
1765 | case tstop_command: | |
1766 | printf_filtered (_("Trace stopped by a tstop command.\n")); | |
1767 | break; | |
1768 | case trace_buffer_full: | |
1769 | printf_filtered (_("Trace stopped because the buffer was full.\n")); | |
1770 | break; | |
1771 | case trace_disconnected: | |
1772 | printf_filtered (_("Trace stopped because of disconnection.\n")); | |
1773 | break; | |
1774 | case tracepoint_passcount: | |
00bf0b85 SS |
1775 | printf_filtered (_("Trace stopped by tracepoint %d.\n"), |
1776 | ts->stopping_tracepoint); | |
1777 | break; | |
6c28cbf2 SS |
1778 | case tracepoint_error: |
1779 | if (ts->stopping_tracepoint) | |
3e43a32a MS |
1780 | printf_filtered (_("Trace stopped by an " |
1781 | "error (%s, tracepoint %d).\n"), | |
6c28cbf2 SS |
1782 | ts->error_desc, ts->stopping_tracepoint); |
1783 | else | |
1784 | printf_filtered (_("Trace stopped by an error (%s).\n"), | |
1785 | ts->error_desc); | |
1786 | break; | |
00bf0b85 SS |
1787 | case trace_stop_reason_unknown: |
1788 | printf_filtered (_("Trace stopped for an unknown reason.\n")); | |
1789 | break; | |
1790 | default: | |
1791 | printf_filtered (_("Trace stopped for some other reason (%d).\n"), | |
1792 | ts->stop_reason); | |
1793 | break; | |
1794 | } | |
1795 | } | |
1796 | ||
4daf5ac0 SS |
1797 | if (ts->traceframes_created >= 0 |
1798 | && ts->traceframe_count != ts->traceframes_created) | |
1799 | { | |
3e43a32a MS |
1800 | printf_filtered (_("Buffer contains %d trace " |
1801 | "frames (of %d created total).\n"), | |
4daf5ac0 SS |
1802 | ts->traceframe_count, ts->traceframes_created); |
1803 | } | |
1804 | else if (ts->traceframe_count >= 0) | |
00bf0b85 SS |
1805 | { |
1806 | printf_filtered (_("Collected %d trace frames.\n"), | |
1807 | ts->traceframe_count); | |
1808 | } | |
1809 | ||
4daf5ac0 | 1810 | if (ts->buffer_free >= 0) |
00bf0b85 | 1811 | { |
4daf5ac0 SS |
1812 | if (ts->buffer_size >= 0) |
1813 | { | |
1814 | printf_filtered (_("Trace buffer has %d bytes of %d bytes free"), | |
1815 | ts->buffer_free, ts->buffer_size); | |
1816 | if (ts->buffer_size > 0) | |
1817 | printf_filtered (_(" (%d%% full)"), | |
1818 | ((int) ((((long long) (ts->buffer_size | |
1819 | - ts->buffer_free)) * 100) | |
1820 | / ts->buffer_size))); | |
1821 | printf_filtered (_(".\n")); | |
1822 | } | |
1823 | else | |
1824 | printf_filtered (_("Trace buffer has %d bytes free.\n"), | |
1825 | ts->buffer_free); | |
00bf0b85 | 1826 | } |
35b1e5cc | 1827 | |
33da3f1c SS |
1828 | if (ts->disconnected_tracing) |
1829 | printf_filtered (_("Trace will continue if GDB disconnects.\n")); | |
1830 | else | |
1831 | printf_filtered (_("Trace will stop if GDB disconnects.\n")); | |
1832 | ||
1833 | if (ts->circular_buffer) | |
1834 | printf_filtered (_("Trace buffer is circular.\n")); | |
1835 | ||
00bf0b85 | 1836 | /* Now report on what we're doing with tfind. */ |
35b1e5cc SS |
1837 | if (traceframe_number >= 0) |
1838 | printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"), | |
1839 | traceframe_number, tracepoint_number); | |
1840 | else | |
1841 | printf_filtered (_("Not looking at any trace frame.\n")); | |
c906108c SS |
1842 | } |
1843 | ||
f224b49d VP |
1844 | /* Report the trace status to uiout, in a way suitable for MI, and not |
1845 | suitable for CLI. If ON_STOP is true, suppress a few fields that | |
1846 | are not meaningful in the -trace-stop response. | |
1847 | ||
1848 | The implementation is essentially parallel to trace_status_command, but | |
1849 | merging them will result in unreadable code. */ | |
1850 | void | |
1851 | trace_status_mi (int on_stop) | |
1852 | { | |
79a45e25 | 1853 | struct ui_out *uiout = current_uiout; |
f224b49d VP |
1854 | struct trace_status *ts = current_trace_status (); |
1855 | int status; | |
f224b49d VP |
1856 | |
1857 | status = target_get_trace_status (ts); | |
1858 | ||
1859 | if (status == -1 && !ts->from_file) | |
1860 | { | |
1861 | ui_out_field_string (uiout, "supported", "0"); | |
1862 | return; | |
1863 | } | |
1864 | ||
1865 | if (ts->from_file) | |
1866 | ui_out_field_string (uiout, "supported", "file"); | |
1867 | else if (!on_stop) | |
1868 | ui_out_field_string (uiout, "supported", "1"); | |
1869 | ||
1870 | gdb_assert (ts->running_known); | |
1871 | ||
1872 | if (ts->running) | |
1873 | { | |
1874 | ui_out_field_string (uiout, "running", "1"); | |
1875 | ||
1876 | /* Unlike CLI, do not show the state of 'disconnected-tracing' variable. | |
1877 | Given that the frontend gets the status either on -trace-stop, or from | |
1878 | -trace-status after re-connection, it does not seem like this | |
1879 | information is necessary for anything. It is not necessary for either | |
1880 | figuring the vital state of the target nor for navigation of trace | |
1881 | frames. If the frontend wants to show the current state is some | |
1882 | configure dialog, it can request the value when such dialog is | |
1883 | invoked by the user. */ | |
1884 | } | |
1885 | else | |
1886 | { | |
1887 | char *stop_reason = NULL; | |
1888 | int stopping_tracepoint = -1; | |
1889 | ||
1890 | if (!on_stop) | |
1891 | ui_out_field_string (uiout, "running", "0"); | |
1892 | ||
1893 | if (ts->stop_reason != trace_stop_reason_unknown) | |
1894 | { | |
1895 | switch (ts->stop_reason) | |
1896 | { | |
1897 | case tstop_command: | |
1898 | stop_reason = "request"; | |
1899 | break; | |
1900 | case trace_buffer_full: | |
1901 | stop_reason = "overflow"; | |
1902 | break; | |
1903 | case trace_disconnected: | |
1904 | stop_reason = "disconnection"; | |
1905 | break; | |
1906 | case tracepoint_passcount: | |
1907 | stop_reason = "passcount"; | |
1908 | stopping_tracepoint = ts->stopping_tracepoint; | |
1909 | break; | |
6c28cbf2 SS |
1910 | case tracepoint_error: |
1911 | stop_reason = "error"; | |
1912 | stopping_tracepoint = ts->stopping_tracepoint; | |
1913 | break; | |
f224b49d VP |
1914 | } |
1915 | ||
1916 | if (stop_reason) | |
1917 | { | |
1918 | ui_out_field_string (uiout, "stop-reason", stop_reason); | |
1919 | if (stopping_tracepoint != -1) | |
1920 | ui_out_field_int (uiout, "stopping-tracepoint", | |
1921 | stopping_tracepoint); | |
6c28cbf2 SS |
1922 | if (ts->stop_reason == tracepoint_error) |
1923 | ui_out_field_string (uiout, "error-description", | |
1924 | ts->error_desc); | |
f224b49d VP |
1925 | } |
1926 | } | |
1927 | } | |
1928 | ||
a97153c7 | 1929 | if (ts->traceframe_count != -1) |
f224b49d | 1930 | ui_out_field_int (uiout, "frames", ts->traceframe_count); |
87290684 SS |
1931 | if (ts->traceframes_created != -1) |
1932 | ui_out_field_int (uiout, "frames-created", ts->traceframes_created); | |
a97153c7 PA |
1933 | if (ts->buffer_size != -1) |
1934 | ui_out_field_int (uiout, "buffer-size", ts->buffer_size); | |
1935 | if (ts->buffer_free != -1) | |
1936 | ui_out_field_int (uiout, "buffer-free", ts->buffer_free); | |
1937 | ||
1938 | ui_out_field_int (uiout, "disconnected", ts->disconnected_tracing); | |
1939 | ui_out_field_int (uiout, "circular", ts->circular_buffer); | |
f224b49d VP |
1940 | } |
1941 | ||
33da3f1c SS |
1942 | /* This function handles the details of what to do about an ongoing |
1943 | tracing run if the user has asked to detach or otherwise disconnect | |
1944 | from the target. */ | |
d5551862 | 1945 | void |
33da3f1c | 1946 | disconnect_tracing (int from_tty) |
d5551862 | 1947 | { |
00bf0b85 SS |
1948 | /* It can happen that the target that was tracing went away on its |
1949 | own, and we didn't notice. Get a status update, and if the | |
1950 | current target doesn't even do tracing, then assume it's not | |
1951 | running anymore. */ | |
26afc0d7 | 1952 | if (target_get_trace_status (current_trace_status ()) < 0) |
00bf0b85 SS |
1953 | current_trace_status ()->running = 0; |
1954 | ||
33da3f1c SS |
1955 | /* If running interactively, give the user the option to cancel and |
1956 | then decide what to do differently with the run. Scripts are | |
1957 | just going to disconnect and let the target deal with it, | |
1958 | according to how it's been instructed previously via | |
1959 | disconnected-tracing. */ | |
00bf0b85 | 1960 | if (current_trace_status ()->running && from_tty) |
d5551862 | 1961 | { |
33da3f1c SS |
1962 | if (current_trace_status ()->disconnected_tracing) |
1963 | { | |
3e43a32a MS |
1964 | if (!query (_("Trace is running and will " |
1965 | "continue after detach; detach anyway? "))) | |
33da3f1c SS |
1966 | error (_("Not confirmed.")); |
1967 | } | |
1968 | else | |
1969 | { | |
3e43a32a MS |
1970 | if (!query (_("Trace is running but will " |
1971 | "stop on detach; detach anyway? "))) | |
33da3f1c SS |
1972 | error (_("Not confirmed.")); |
1973 | } | |
d5551862 | 1974 | } |
8b9b7ef8 SS |
1975 | |
1976 | /* Also we want to be out of tfind mode, otherwise things can get | |
1977 | confusing upon reconnection. Just use these calls instead of | |
1978 | full tfind_1 behavior because we're in the middle of detaching, | |
1979 | and there's no point to updating current stack frame etc. */ | |
e6e4e701 | 1980 | set_current_traceframe (-1); |
8b9b7ef8 | 1981 | set_traceframe_context (NULL); |
d5551862 SS |
1982 | } |
1983 | ||
d183932d | 1984 | /* Worker function for the various flavors of the tfind command. */ |
f197e0f1 VP |
1985 | void |
1986 | tfind_1 (enum trace_find_type type, int num, | |
1987 | ULONGEST addr1, ULONGEST addr2, | |
1988 | int from_tty) | |
c906108c SS |
1989 | { |
1990 | int target_frameno = -1, target_tracept = -1; | |
2ce6d6bf | 1991 | struct frame_id old_frame_id = null_frame_id; |
d9b3f62e | 1992 | struct tracepoint *tp; |
79a45e25 | 1993 | struct ui_out *uiout = current_uiout; |
c906108c | 1994 | |
2ce6d6bf SS |
1995 | /* Only try to get the current stack frame if we have a chance of |
1996 | succeeding. In particular, if we're trying to get a first trace | |
1997 | frame while all threads are running, it's not going to succeed, | |
1998 | so leave it with a default value and let the frame comparison | |
1999 | below (correctly) decide to print out the source location of the | |
2000 | trace frame. */ | |
2001 | if (!(type == tfind_number && num == -1) | |
2002 | && (has_stack_frames () || traceframe_number >= 0)) | |
2003 | old_frame_id = get_frame_id (get_current_frame ()); | |
c906108c | 2004 | |
35b1e5cc SS |
2005 | target_frameno = target_trace_find (type, num, addr1, addr2, |
2006 | &target_tracept); | |
2007 | ||
2008 | if (type == tfind_number | |
2009 | && num == -1 | |
2010 | && target_frameno == -1) | |
2011 | { | |
2012 | /* We told the target to get out of tfind mode, and it did. */ | |
2013 | } | |
2014 | else if (target_frameno == -1) | |
2015 | { | |
2ce6d6bf | 2016 | /* A request for a non-existent trace frame has failed. |
35b1e5cc SS |
2017 | Our response will be different, depending on FROM_TTY: |
2018 | ||
2019 | If FROM_TTY is true, meaning that this command was | |
2020 | typed interactively by the user, then give an error | |
2021 | and DO NOT change the state of traceframe_number etc. | |
2022 | ||
2023 | However if FROM_TTY is false, meaning that we're either | |
2024 | in a script, a loop, or a user-defined command, then | |
2025 | DON'T give an error, but DO change the state of | |
2026 | traceframe_number etc. to invalid. | |
2027 | ||
2028 | The rationalle is that if you typed the command, you | |
2029 | might just have committed a typo or something, and you'd | |
2030 | like to NOT lose your current debugging state. However | |
2031 | if you're in a user-defined command or especially in a | |
2032 | loop, then you need a way to detect that the command | |
2033 | failed WITHOUT aborting. This allows you to write | |
2034 | scripts that search thru the trace buffer until the end, | |
2035 | and then continue on to do something else. */ | |
2036 | ||
2037 | if (from_tty) | |
2038 | error (_("Target failed to find requested trace frame.")); | |
2039 | else | |
2040 | { | |
2041 | if (info_verbose) | |
2042 | printf_filtered ("End of trace buffer.\n"); | |
c378eb4e | 2043 | #if 0 /* dubious now? */ |
35b1e5cc SS |
2044 | /* The following will not recurse, since it's |
2045 | special-cased. */ | |
2046 | trace_find_command ("-1", from_tty); | |
2047 | #endif | |
2048 | } | |
2049 | } | |
2050 | ||
d5551862 SS |
2051 | tp = get_tracepoint_by_number_on_target (target_tracept); |
2052 | ||
35f196d9 | 2053 | reinit_frame_cache (); |
c906108c | 2054 | registers_changed (); |
2f4d8875 | 2055 | target_dcache_invalidate (); |
c906108c | 2056 | set_traceframe_num (target_frameno); |
b3b9301e | 2057 | clear_traceframe_info (); |
d9b3f62e | 2058 | set_tracepoint_num (tp ? tp->base.number : target_tracept); |
c906108c | 2059 | if (target_frameno == -1) |
fb14de7b | 2060 | set_traceframe_context (NULL); |
c906108c | 2061 | else |
fb14de7b | 2062 | set_traceframe_context (get_current_frame ()); |
c906108c | 2063 | |
f197e0f1 VP |
2064 | if (traceframe_number >= 0) |
2065 | { | |
2066 | /* Use different branches for MI and CLI to make CLI messages | |
2067 | i18n-eable. */ | |
2068 | if (ui_out_is_mi_like_p (uiout)) | |
2069 | { | |
2070 | ui_out_field_string (uiout, "found", "1"); | |
2071 | ui_out_field_int (uiout, "tracepoint", tracepoint_number); | |
2072 | ui_out_field_int (uiout, "traceframe", traceframe_number); | |
2073 | } | |
2074 | else | |
2075 | { | |
2076 | printf_unfiltered (_("Found trace frame %d, tracepoint %d\n"), | |
2077 | traceframe_number, tracepoint_number); | |
2078 | } | |
2079 | } | |
2080 | else | |
2081 | { | |
2082 | if (ui_out_is_mi_like_p (uiout)) | |
2083 | ui_out_field_string (uiout, "found", "0"); | |
4136fdd2 SS |
2084 | else if (type == tfind_number && num == -1) |
2085 | printf_unfiltered (_("No longer looking at any trace frame\n")); | |
c378eb4e | 2086 | else /* This case may never occur, check. */ |
4136fdd2 | 2087 | printf_unfiltered (_("No trace frame found\n")); |
f197e0f1 VP |
2088 | } |
2089 | ||
00bf0b85 SS |
2090 | /* If we're in nonstop mode and getting out of looking at trace |
2091 | frames, there won't be any current frame to go back to and | |
2092 | display. */ | |
2093 | if (from_tty | |
2094 | && (has_stack_frames () || traceframe_number >= 0)) | |
c906108c | 2095 | { |
0faf0076 | 2096 | enum print_what print_what; |
c906108c | 2097 | |
2ce6d6bf | 2098 | /* NOTE: in imitation of the step command, try to determine |
d183932d MS |
2099 | whether we have made a transition from one function to |
2100 | another. If so, we'll print the "stack frame" (ie. the new | |
2101 | function and it's arguments) -- otherwise we'll just show the | |
fb14de7b UW |
2102 | new source line. */ |
2103 | ||
2104 | if (frame_id_eq (old_frame_id, | |
2105 | get_frame_id (get_current_frame ()))) | |
0faf0076 | 2106 | print_what = SRC_LINE; |
c906108c | 2107 | else |
0faf0076 | 2108 | print_what = SRC_AND_LOC; |
c906108c | 2109 | |
b04f3ab4 | 2110 | print_stack_frame (get_selected_frame (NULL), 1, print_what); |
c906108c SS |
2111 | do_displays (); |
2112 | } | |
2113 | } | |
2114 | ||
2115 | /* trace_find_command takes a trace frame number n, | |
2116 | sends "QTFrame:<n>" to the target, | |
2117 | and accepts a reply that may contain several optional pieces | |
2118 | of information: a frame number, a tracepoint number, and an | |
2119 | indication of whether this is a trap frame or a stepping frame. | |
2120 | ||
2121 | The minimal response is just "OK" (which indicates that the | |
2122 | target does not give us a frame number or a tracepoint number). | |
2123 | Instead of that, the target may send us a string containing | |
2124 | any combination of: | |
c5aa993b JM |
2125 | F<hexnum> (gives the selected frame number) |
2126 | T<hexnum> (gives the selected tracepoint number) | |
2127 | */ | |
c906108c SS |
2128 | |
2129 | /* tfind command */ | |
2130 | static void | |
fba45db2 | 2131 | trace_find_command (char *args, int from_tty) |
c378eb4e | 2132 | { /* This should only be called with a numeric argument. */ |
c906108c | 2133 | int frameno = -1; |
c906108c | 2134 | |
00bf0b85 | 2135 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2136 | error (_("May not look at trace frames while trace is running.")); |
35b1e5cc SS |
2137 | |
2138 | if (args == 0 || *args == 0) | |
2139 | { /* TFIND with no args means find NEXT trace frame. */ | |
2140 | if (traceframe_number == -1) | |
c378eb4e | 2141 | frameno = 0; /* "next" is first one. */ |
35b1e5cc SS |
2142 | else |
2143 | frameno = traceframe_number + 1; | |
2144 | } | |
2145 | else if (0 == strcmp (args, "-")) | |
c906108c | 2146 | { |
35b1e5cc SS |
2147 | if (traceframe_number == -1) |
2148 | error (_("not debugging trace buffer")); | |
2149 | else if (from_tty && traceframe_number == 0) | |
2150 | error (_("already at start of trace buffer")); | |
2151 | ||
2152 | frameno = traceframe_number - 1; | |
2153 | } | |
2154 | /* A hack to work around eval's need for fp to have been collected. */ | |
2155 | else if (0 == strcmp (args, "-1")) | |
2156 | frameno = -1; | |
2157 | else | |
2158 | frameno = parse_and_eval_long (args); | |
c906108c | 2159 | |
35b1e5cc SS |
2160 | if (frameno < -1) |
2161 | error (_("invalid input (%d is less than zero)"), frameno); | |
c906108c | 2162 | |
f197e0f1 | 2163 | tfind_1 (tfind_number, frameno, 0, 0, from_tty); |
c906108c SS |
2164 | } |
2165 | ||
2166 | /* tfind end */ | |
2167 | static void | |
fba45db2 | 2168 | trace_find_end_command (char *args, int from_tty) |
c906108c SS |
2169 | { |
2170 | trace_find_command ("-1", from_tty); | |
2171 | } | |
2172 | ||
2173 | /* tfind none */ | |
2174 | static void | |
fba45db2 | 2175 | trace_find_none_command (char *args, int from_tty) |
c906108c SS |
2176 | { |
2177 | trace_find_command ("-1", from_tty); | |
2178 | } | |
2179 | ||
2180 | /* tfind start */ | |
2181 | static void | |
fba45db2 | 2182 | trace_find_start_command (char *args, int from_tty) |
c906108c SS |
2183 | { |
2184 | trace_find_command ("0", from_tty); | |
2185 | } | |
2186 | ||
2187 | /* tfind pc command */ | |
2188 | static void | |
fba45db2 | 2189 | trace_find_pc_command (char *args, int from_tty) |
d183932d | 2190 | { |
c906108c | 2191 | CORE_ADDR pc; |
c906108c | 2192 | |
00bf0b85 | 2193 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2194 | error (_("May not look at trace frames while trace is running.")); |
c906108c | 2195 | |
35b1e5cc SS |
2196 | if (args == 0 || *args == 0) |
2197 | pc = regcache_read_pc (get_current_regcache ()); | |
c906108c | 2198 | else |
35b1e5cc SS |
2199 | pc = parse_and_eval_address (args); |
2200 | ||
f197e0f1 | 2201 | tfind_1 (tfind_pc, 0, pc, 0, from_tty); |
c906108c SS |
2202 | } |
2203 | ||
2204 | /* tfind tracepoint command */ | |
2205 | static void | |
fba45db2 | 2206 | trace_find_tracepoint_command (char *args, int from_tty) |
d183932d | 2207 | { |
c906108c | 2208 | int tdp; |
d9b3f62e | 2209 | struct tracepoint *tp; |
c906108c | 2210 | |
00bf0b85 | 2211 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2212 | error (_("May not look at trace frames while trace is running.")); |
383e5f85 | 2213 | |
35b1e5cc SS |
2214 | if (args == 0 || *args == 0) |
2215 | { | |
2216 | if (tracepoint_number == -1) | |
2217 | error (_("No current tracepoint -- please supply an argument.")); | |
c906108c | 2218 | else |
c378eb4e | 2219 | tdp = tracepoint_number; /* Default is current TDP. */ |
c906108c SS |
2220 | } |
2221 | else | |
35b1e5cc SS |
2222 | tdp = parse_and_eval_long (args); |
2223 | ||
2224 | /* If we have the tracepoint on hand, use the number that the | |
2225 | target knows about (which may be different if we disconnected | |
2226 | and reconnected). */ | |
2227 | tp = get_tracepoint (tdp); | |
2228 | if (tp) | |
2229 | tdp = tp->number_on_target; | |
2230 | ||
f197e0f1 | 2231 | tfind_1 (tfind_tp, tdp, 0, 0, from_tty); |
c906108c SS |
2232 | } |
2233 | ||
2234 | /* TFIND LINE command: | |
c5aa993b | 2235 | |
c906108c | 2236 | This command will take a sourceline for argument, just like BREAK |
d183932d | 2237 | or TRACE (ie. anything that "decode_line_1" can handle). |
c5aa993b | 2238 | |
c906108c SS |
2239 | With no argument, this command will find the next trace frame |
2240 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
2241 | ||
2242 | static void | |
fba45db2 | 2243 | trace_find_line_command (char *args, int from_tty) |
d183932d | 2244 | { |
c906108c SS |
2245 | static CORE_ADDR start_pc, end_pc; |
2246 | struct symtabs_and_lines sals; | |
2247 | struct symtab_and_line sal; | |
c906108c SS |
2248 | struct cleanup *old_chain; |
2249 | ||
00bf0b85 | 2250 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2251 | error (_("May not look at trace frames while trace is running.")); |
5af949e3 | 2252 | |
35b1e5cc SS |
2253 | if (args == 0 || *args == 0) |
2254 | { | |
2255 | sal = find_pc_line (get_frame_pc (get_current_frame ()), 0); | |
2256 | sals.nelts = 1; | |
2257 | sals.sals = (struct symtab_and_line *) | |
2258 | xmalloc (sizeof (struct symtab_and_line)); | |
2259 | sals.sals[0] = sal; | |
2260 | } | |
2261 | else | |
42e08e69 | 2262 | { |
35b1e5cc SS |
2263 | sals = decode_line_spec (args, 1); |
2264 | sal = sals.sals[0]; | |
2265 | } | |
2266 | ||
2267 | old_chain = make_cleanup (xfree, sals.sals); | |
2268 | if (sal.symtab == 0) | |
42e08e69 SS |
2269 | error (_("No line number information available.")); |
2270 | ||
2271 | if (sal.line > 0 && find_line_pc_range (sal, &start_pc, &end_pc)) | |
35b1e5cc SS |
2272 | { |
2273 | if (start_pc == end_pc) | |
2274 | { | |
2275 | printf_filtered ("Line %d of \"%s\"", | |
2276 | sal.line, sal.symtab->filename); | |
2277 | wrap_here (" "); | |
2278 | printf_filtered (" is at address "); | |
2279 | print_address (get_current_arch (), start_pc, gdb_stdout); | |
2280 | wrap_here (" "); | |
2281 | printf_filtered (" but contains no code.\n"); | |
2282 | sal = find_pc_line (start_pc, 0); | |
2283 | if (sal.line > 0 | |
2284 | && find_line_pc_range (sal, &start_pc, &end_pc) | |
2285 | && start_pc != end_pc) | |
2286 | printf_filtered ("Attempting to find line %d instead.\n", | |
2287 | sal.line); | |
2288 | else | |
2289 | error (_("Cannot find a good line.")); | |
2290 | } | |
2291 | } | |
2292 | else | |
2293 | /* Is there any case in which we get here, and have an address | |
2294 | which the user would want to see? If we have debugging | |
2295 | symbols and no line numbers? */ | |
2296 | error (_("Line number %d is out of range for \"%s\"."), | |
2297 | sal.line, sal.symtab->filename); | |
2298 | ||
2299 | /* Find within range of stated line. */ | |
2300 | if (args && *args) | |
f197e0f1 | 2301 | tfind_1 (tfind_range, 0, start_pc, end_pc - 1, from_tty); |
c906108c | 2302 | else |
f197e0f1 | 2303 | tfind_1 (tfind_outside, 0, start_pc, end_pc - 1, from_tty); |
35b1e5cc | 2304 | do_cleanups (old_chain); |
c906108c SS |
2305 | } |
2306 | ||
2307 | /* tfind range command */ | |
2308 | static void | |
fba45db2 | 2309 | trace_find_range_command (char *args, int from_tty) |
104c1213 | 2310 | { |
c906108c SS |
2311 | static CORE_ADDR start, stop; |
2312 | char *tmp; | |
2313 | ||
00bf0b85 | 2314 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2315 | error (_("May not look at trace frames while trace is running.")); |
c906108c | 2316 | |
35b1e5cc SS |
2317 | if (args == 0 || *args == 0) |
2318 | { /* XXX FIXME: what should default behavior be? */ | |
2319 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); | |
2320 | return; | |
2321 | } | |
c906108c | 2322 | |
35b1e5cc SS |
2323 | if (0 != (tmp = strchr (args, ','))) |
2324 | { | |
c378eb4e | 2325 | *tmp++ = '\0'; /* Terminate start address. */ |
35b1e5cc SS |
2326 | while (isspace ((int) *tmp)) |
2327 | tmp++; | |
2328 | start = parse_and_eval_address (args); | |
2329 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
2330 | } |
2331 | else | |
c378eb4e | 2332 | { /* No explicit end address? */ |
35b1e5cc SS |
2333 | start = parse_and_eval_address (args); |
2334 | stop = start + 1; /* ??? */ | |
2335 | } | |
2336 | ||
f197e0f1 | 2337 | tfind_1 (tfind_range, 0, start, stop, from_tty); |
c906108c SS |
2338 | } |
2339 | ||
2340 | /* tfind outside command */ | |
2341 | static void | |
fba45db2 | 2342 | trace_find_outside_command (char *args, int from_tty) |
104c1213 | 2343 | { |
c906108c SS |
2344 | CORE_ADDR start, stop; |
2345 | char *tmp; | |
2346 | ||
00bf0b85 | 2347 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2348 | error (_("May not look at trace frames while trace is running.")); |
c906108c | 2349 | |
35b1e5cc | 2350 | if (args == 0 || *args == 0) |
c378eb4e | 2351 | { /* XXX FIXME: what should default behavior be? */ |
35b1e5cc SS |
2352 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); |
2353 | return; | |
2354 | } | |
c906108c | 2355 | |
35b1e5cc SS |
2356 | if (0 != (tmp = strchr (args, ','))) |
2357 | { | |
c378eb4e | 2358 | *tmp++ = '\0'; /* Terminate start address. */ |
35b1e5cc SS |
2359 | while (isspace ((int) *tmp)) |
2360 | tmp++; | |
2361 | start = parse_and_eval_address (args); | |
2362 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
2363 | } |
2364 | else | |
c378eb4e | 2365 | { /* No explicit end address? */ |
35b1e5cc SS |
2366 | start = parse_and_eval_address (args); |
2367 | stop = start + 1; /* ??? */ | |
2368 | } | |
2369 | ||
f197e0f1 | 2370 | tfind_1 (tfind_outside, 0, start, stop, from_tty); |
c906108c SS |
2371 | } |
2372 | ||
c906108c SS |
2373 | /* info scope command: list the locals for a scope. */ |
2374 | static void | |
fba45db2 | 2375 | scope_info (char *args, int from_tty) |
c906108c | 2376 | { |
c906108c SS |
2377 | struct symtabs_and_lines sals; |
2378 | struct symbol *sym; | |
2379 | struct minimal_symbol *msym; | |
2380 | struct block *block; | |
21cbba77 | 2381 | char *symname, *save_args = args; |
de4f826b DC |
2382 | struct dict_iterator iter; |
2383 | int j, count = 0; | |
768a979c UW |
2384 | struct gdbarch *gdbarch; |
2385 | int regno; | |
c906108c SS |
2386 | |
2387 | if (args == 0 || *args == 0) | |
3e43a32a MS |
2388 | error (_("requires an argument (function, " |
2389 | "line or *addr) to define a scope")); | |
c906108c | 2390 | |
58438ac1 | 2391 | sals = decode_line_1 (&args, 1, NULL, 0, NULL); |
c906108c | 2392 | if (sals.nelts == 0) |
c378eb4e | 2393 | return; /* Presumably decode_line_1 has already warned. */ |
c906108c | 2394 | |
c378eb4e | 2395 | /* Resolve line numbers to PC. */ |
c906108c SS |
2396 | resolve_sal_pc (&sals.sals[0]); |
2397 | block = block_for_pc (sals.sals[0].pc); | |
2398 | ||
2399 | while (block != 0) | |
2400 | { | |
c378eb4e | 2401 | QUIT; /* Allow user to bail out with ^C. */ |
de4f826b | 2402 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 2403 | { |
c378eb4e | 2404 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c SS |
2405 | if (count == 0) |
2406 | printf_filtered ("Scope for %s:\n", save_args); | |
2407 | count++; | |
e88c90f2 | 2408 | |
3567439c | 2409 | symname = SYMBOL_PRINT_NAME (sym); |
c906108c | 2410 | if (symname == NULL || *symname == '\0') |
c378eb4e | 2411 | continue; /* Probably botched, certainly useless. */ |
c906108c | 2412 | |
768a979c UW |
2413 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
2414 | ||
c906108c | 2415 | printf_filtered ("Symbol %s is ", symname); |
c5aa993b JM |
2416 | switch (SYMBOL_CLASS (sym)) |
2417 | { | |
2418 | default: | |
c378eb4e | 2419 | case LOC_UNDEF: /* Messed up symbol? */ |
c5aa993b JM |
2420 | printf_filtered ("a bogus symbol, class %d.\n", |
2421 | SYMBOL_CLASS (sym)); | |
c378eb4e | 2422 | count--; /* Don't count this one. */ |
c5aa993b JM |
2423 | continue; |
2424 | case LOC_CONST: | |
104c1213 | 2425 | printf_filtered ("a constant with value %ld (0x%lx)", |
c5aa993b JM |
2426 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); |
2427 | break; | |
2428 | case LOC_CONST_BYTES: | |
2429 | printf_filtered ("constant bytes: "); | |
2430 | if (SYMBOL_TYPE (sym)) | |
2431 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) | |
2432 | fprintf_filtered (gdb_stdout, " %02x", | |
2433 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); | |
2434 | break; | |
2435 | case LOC_STATIC: | |
2436 | printf_filtered ("in static storage at address "); | |
5af949e3 UW |
2437 | printf_filtered ("%s", paddress (gdbarch, |
2438 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2439 | break; |
2440 | case LOC_REGISTER: | |
768a979c UW |
2441 | /* GDBARCH is the architecture associated with the objfile |
2442 | the symbol is defined in; the target architecture may be | |
2443 | different, and may provide additional registers. However, | |
2444 | we do not know the target architecture at this point. | |
2445 | We assume the objfile architecture will contain all the | |
2446 | standard registers that occur in debug info in that | |
2447 | objfile. */ | |
3e43a32a MS |
2448 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, |
2449 | gdbarch); | |
768a979c | 2450 | |
2a2d4dc3 AS |
2451 | if (SYMBOL_IS_ARGUMENT (sym)) |
2452 | printf_filtered ("an argument in register $%s", | |
768a979c | 2453 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
2454 | else |
2455 | printf_filtered ("a local variable in register $%s", | |
768a979c | 2456 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2457 | break; |
2458 | case LOC_ARG: | |
c5aa993b JM |
2459 | printf_filtered ("an argument at stack/frame offset %ld", |
2460 | SYMBOL_VALUE (sym)); | |
2461 | break; | |
2462 | case LOC_LOCAL: | |
2463 | printf_filtered ("a local variable at frame offset %ld", | |
2464 | SYMBOL_VALUE (sym)); | |
2465 | break; | |
2466 | case LOC_REF_ARG: | |
2467 | printf_filtered ("a reference argument at offset %ld", | |
2468 | SYMBOL_VALUE (sym)); | |
2469 | break; | |
c5aa993b | 2470 | case LOC_REGPARM_ADDR: |
768a979c | 2471 | /* Note comment at LOC_REGISTER. */ |
3e43a32a MS |
2472 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, |
2473 | gdbarch); | |
c5aa993b | 2474 | printf_filtered ("the address of an argument, in register $%s", |
768a979c | 2475 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2476 | break; |
2477 | case LOC_TYPEDEF: | |
2478 | printf_filtered ("a typedef.\n"); | |
2479 | continue; | |
2480 | case LOC_LABEL: | |
2481 | printf_filtered ("a label at address "); | |
5af949e3 UW |
2482 | printf_filtered ("%s", paddress (gdbarch, |
2483 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2484 | break; |
2485 | case LOC_BLOCK: | |
2486 | printf_filtered ("a function at address "); | |
5af949e3 UW |
2487 | printf_filtered ("%s", |
2488 | paddress (gdbarch, BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))); | |
c5aa993b | 2489 | break; |
c5aa993b | 2490 | case LOC_UNRESOLVED: |
3567439c | 2491 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), |
450bd37b | 2492 | NULL, NULL); |
c5aa993b JM |
2493 | if (msym == NULL) |
2494 | printf_filtered ("Unresolved Static"); | |
2495 | else | |
2496 | { | |
2497 | printf_filtered ("static storage at address "); | |
5af949e3 UW |
2498 | printf_filtered ("%s", |
2499 | paddress (gdbarch, SYMBOL_VALUE_ADDRESS (msym))); | |
c5aa993b JM |
2500 | } |
2501 | break; | |
2502 | case LOC_OPTIMIZED_OUT: | |
2503 | printf_filtered ("optimized out.\n"); | |
2504 | continue; | |
450bd37b | 2505 | case LOC_COMPUTED: |
08922a10 SS |
2506 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, |
2507 | BLOCK_START (block), | |
2508 | gdb_stdout); | |
450bd37b | 2509 | break; |
c5aa993b | 2510 | } |
c906108c | 2511 | if (SYMBOL_TYPE (sym)) |
c5aa993b | 2512 | printf_filtered (", length %d.\n", |
450bd37b | 2513 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); |
c906108c SS |
2514 | } |
2515 | if (BLOCK_FUNCTION (block)) | |
2516 | break; | |
2517 | else | |
2518 | block = BLOCK_SUPERBLOCK (block); | |
2519 | } | |
2520 | if (count <= 0) | |
2521 | printf_filtered ("Scope for %s contains no locals or arguments.\n", | |
2522 | save_args); | |
2523 | } | |
2524 | ||
2525 | /* worker function (cleanup) */ | |
2526 | static void | |
710b33bd | 2527 | replace_comma (void *data) |
c906108c | 2528 | { |
710b33bd | 2529 | char *comma = data; |
c906108c SS |
2530 | *comma = ','; |
2531 | } | |
2532 | ||
afd02f27 PA |
2533 | |
2534 | /* Helper for trace_dump_command. Dump the action list starting at | |
2535 | ACTION. STEPPING_ACTIONS is true if we're iterating over the | |
2536 | actions of the body of a while-stepping action. STEPPING_FRAME is | |
2537 | set if the current traceframe was determined to be a while-stepping | |
2538 | traceframe. */ | |
2539 | ||
c906108c | 2540 | static void |
afd02f27 PA |
2541 | trace_dump_actions (struct command_line *action, |
2542 | int stepping_actions, int stepping_frame, | |
2543 | int from_tty) | |
c906108c | 2544 | { |
c5aa993b | 2545 | char *action_exp, *next_comma; |
c906108c | 2546 | |
afd02f27 | 2547 | for (; action != NULL; action = action->next) |
c906108c SS |
2548 | { |
2549 | struct cmd_list_element *cmd; | |
2550 | ||
c378eb4e | 2551 | QUIT; /* Allow user to bail out with ^C. */ |
a7bdde9e | 2552 | action_exp = action->line; |
104c1213 | 2553 | while (isspace ((int) *action_exp)) |
c906108c SS |
2554 | action_exp++; |
2555 | ||
2556 | /* The collection actions to be done while stepping are | |
c5aa993b | 2557 | bracketed by the commands "while-stepping" and "end". */ |
c906108c SS |
2558 | |
2559 | if (*action_exp == '#') /* comment line */ | |
2560 | continue; | |
2561 | ||
2562 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
2563 | if (cmd == 0) | |
8a3fe4f8 | 2564 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 2565 | |
bbaca940 | 2566 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
afd02f27 PA |
2567 | { |
2568 | int i; | |
2569 | ||
2570 | for (i = 0; i < action->body_count; ++i) | |
2571 | trace_dump_actions (action->body_list[i], | |
2572 | 1, stepping_frame, from_tty); | |
2573 | } | |
bbaca940 | 2574 | else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c SS |
2575 | { |
2576 | /* Display the collected data. | |
d183932d MS |
2577 | For the trap frame, display only what was collected at |
2578 | the trap. Likewise for stepping frames, display only | |
2579 | what was collected while stepping. This means that the | |
2580 | two boolean variables, STEPPING_FRAME and | |
2581 | STEPPING_ACTIONS should be equal. */ | |
c906108c SS |
2582 | if (stepping_frame == stepping_actions) |
2583 | { | |
c5aa993b | 2584 | do |
c378eb4e MS |
2585 | { /* Repeat over a comma-separated list. */ |
2586 | QUIT; /* Allow user to bail out with ^C. */ | |
c5aa993b JM |
2587 | if (*action_exp == ',') |
2588 | action_exp++; | |
104c1213 | 2589 | while (isspace ((int) *action_exp)) |
c5aa993b JM |
2590 | action_exp++; |
2591 | ||
2592 | next_comma = strchr (action_exp, ','); | |
2593 | ||
2594 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2595 | registers_info (NULL, from_tty); | |
6710bf39 SS |
2596 | else if (0 == strncasecmp (action_exp, "$_ret", 5)) |
2597 | ; | |
c5aa993b JM |
2598 | else if (0 == strncasecmp (action_exp, "$loc", 4)) |
2599 | locals_info (NULL, from_tty); | |
2600 | else if (0 == strncasecmp (action_exp, "$arg", 4)) | |
2601 | args_info (NULL, from_tty); | |
2602 | else | |
2603 | { /* variable */ | |
2604 | if (next_comma) | |
2605 | { | |
2606 | make_cleanup (replace_comma, next_comma); | |
2607 | *next_comma = '\0'; | |
2608 | } | |
2609 | printf_filtered ("%s = ", action_exp); | |
2610 | output_command (action_exp, from_tty); | |
2611 | printf_filtered ("\n"); | |
2612 | } | |
2613 | if (next_comma) | |
2614 | *next_comma = ','; | |
2615 | action_exp = next_comma; | |
2616 | } | |
2617 | while (action_exp && *action_exp == ','); | |
c906108c SS |
2618 | } |
2619 | } | |
2620 | } | |
afd02f27 PA |
2621 | } |
2622 | ||
2623 | /* The tdump command. */ | |
2624 | ||
2625 | static void | |
2626 | trace_dump_command (char *args, int from_tty) | |
2627 | { | |
2628 | struct regcache *regcache; | |
d9b3f62e | 2629 | struct tracepoint *t; |
afd02f27 PA |
2630 | int stepping_frame = 0; |
2631 | struct bp_location *loc; | |
2114d44c SS |
2632 | char *line, *default_collect_line = NULL; |
2633 | struct command_line *actions, *default_collect_action = NULL; | |
2634 | struct cleanup *old_chain = NULL; | |
afd02f27 PA |
2635 | |
2636 | if (tracepoint_number == -1) | |
2637 | { | |
2638 | warning (_("No current trace frame.")); | |
2639 | return; | |
2640 | } | |
2641 | ||
2642 | t = get_tracepoint (tracepoint_number); | |
2643 | ||
2644 | if (t == NULL) | |
2645 | error (_("No known tracepoint matches 'current' tracepoint #%d."), | |
2646 | tracepoint_number); | |
2647 | ||
2648 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", | |
2649 | tracepoint_number, traceframe_number); | |
2650 | ||
2651 | /* The current frame is a trap frame if the frame PC is equal | |
2652 | to the tracepoint PC. If not, then the current frame was | |
2653 | collected during single-stepping. */ | |
2654 | ||
2655 | regcache = get_current_regcache (); | |
2656 | ||
2657 | /* If the traceframe's address matches any of the tracepoint's | |
2658 | locations, assume it is a direct hit rather than a while-stepping | |
2659 | frame. (FIXME this is not reliable, should record each frame's | |
2660 | type.) */ | |
2661 | stepping_frame = 1; | |
d9b3f62e | 2662 | for (loc = t->base.loc; loc; loc = loc->next) |
afd02f27 PA |
2663 | if (loc->address == regcache_read_pc (regcache)) |
2664 | stepping_frame = 0; | |
2665 | ||
d9b3f62e | 2666 | actions = breakpoint_commands (&t->base); |
2114d44c SS |
2667 | |
2668 | /* If there is a default-collect list, make up a collect command, | |
2669 | prepend to the tracepoint's commands, and pass the whole mess to | |
2670 | the trace dump scanner. We need to validate because | |
2671 | default-collect might have been junked since the trace run. */ | |
2672 | if (*default_collect) | |
2673 | { | |
2674 | default_collect_line = xstrprintf ("collect %s", default_collect); | |
2675 | old_chain = make_cleanup (xfree, default_collect_line); | |
2676 | line = default_collect_line; | |
d9b3f62e | 2677 | validate_actionline (&line, &t->base); |
2114d44c SS |
2678 | default_collect_action = xmalloc (sizeof (struct command_line)); |
2679 | make_cleanup (xfree, default_collect_action); | |
2680 | default_collect_action->next = actions; | |
2681 | default_collect_action->line = line; | |
2682 | actions = default_collect_action; | |
2683 | } | |
2684 | ||
2685 | trace_dump_actions (actions, 0, stepping_frame, from_tty); | |
2686 | ||
2687 | if (*default_collect) | |
2688 | do_cleanups (old_chain); | |
c906108c SS |
2689 | } |
2690 | ||
409873ef SS |
2691 | /* Encode a piece of a tracepoint's source-level definition in a form |
2692 | that is suitable for both protocol and saving in files. */ | |
2693 | /* This version does not do multiple encodes for long strings; it should | |
2694 | return an offset to the next piece to encode. FIXME */ | |
2695 | ||
2696 | extern int | |
2697 | encode_source_string (int tpnum, ULONGEST addr, | |
2698 | char *srctype, char *src, char *buf, int buf_size) | |
2699 | { | |
2700 | if (80 + strlen (srctype) > buf_size) | |
2701 | error (_("Buffer too small for source encoding")); | |
2702 | sprintf (buf, "%x:%s:%s:%x:%x:", | |
3e43a32a MS |
2703 | tpnum, phex_nz (addr, sizeof (addr)), |
2704 | srctype, 0, (int) strlen (src)); | |
409873ef SS |
2705 | if (strlen (buf) + strlen (src) * 2 >= buf_size) |
2706 | error (_("Source string too long for buffer")); | |
2707 | bin2hex (src, buf + strlen (buf), 0); | |
2708 | return -1; | |
2709 | } | |
2710 | ||
00bf0b85 SS |
2711 | extern int trace_regblock_size; |
2712 | ||
011aacb0 VP |
2713 | /* Save tracepoint data to file named FILENAME. If TARGET_DOES_SAVE is |
2714 | non-zero, the save is performed on the target, otherwise GDB obtains all | |
2715 | trace data and saves it locally. */ | |
2716 | ||
2717 | void | |
2718 | trace_save (const char *filename, int target_does_save) | |
00bf0b85 | 2719 | { |
00bf0b85 | 2720 | struct cleanup *cleanup; |
011aacb0 | 2721 | char *pathname; |
00bf0b85 SS |
2722 | struct trace_status *ts = current_trace_status (); |
2723 | int err, status; | |
2724 | FILE *fp; | |
2725 | struct uploaded_tp *uploaded_tps = NULL, *utp; | |
2726 | struct uploaded_tsv *uploaded_tsvs = NULL, *utsv; | |
2727 | int a; | |
3149d8c1 | 2728 | char *act; |
00bf0b85 SS |
2729 | LONGEST gotten = 0; |
2730 | ULONGEST offset = 0; | |
2731 | #define MAX_TRACE_UPLOAD 2000 | |
2732 | gdb_byte buf[MAX_TRACE_UPLOAD]; | |
98e03262 | 2733 | int written; |
00bf0b85 | 2734 | |
00bf0b85 SS |
2735 | /* If the target is to save the data to a file on its own, then just |
2736 | send the command and be done with it. */ | |
2737 | if (target_does_save) | |
2738 | { | |
2739 | err = target_save_trace_data (filename); | |
2740 | if (err < 0) | |
2741 | error (_("Target failed to save trace data to '%s'."), | |
2742 | filename); | |
2743 | return; | |
2744 | } | |
2745 | ||
2746 | /* Get the trace status first before opening the file, so if the | |
2747 | target is losing, we can get out without touching files. */ | |
2748 | status = target_get_trace_status (ts); | |
2749 | ||
011aacb0 | 2750 | pathname = tilde_expand (filename); |
00bf0b85 SS |
2751 | cleanup = make_cleanup (xfree, pathname); |
2752 | ||
105c2d85 | 2753 | fp = fopen (pathname, "wb"); |
00bf0b85 SS |
2754 | if (!fp) |
2755 | error (_("Unable to open file '%s' for saving trace data (%s)"), | |
011aacb0 | 2756 | filename, safe_strerror (errno)); |
00bf0b85 SS |
2757 | make_cleanup_fclose (fp); |
2758 | ||
2759 | /* Write a file header, with a high-bit-set char to indicate a | |
2760 | binary file, plus a hint as what this file is, and a version | |
2761 | number in case of future needs. */ | |
98e03262 | 2762 | written = fwrite ("\x7fTRACE0\n", 8, 1, fp); |
409873ef | 2763 | if (written < 1) |
98e03262 | 2764 | perror_with_name (pathname); |
00bf0b85 SS |
2765 | |
2766 | /* Write descriptive info. */ | |
2767 | ||
2768 | /* Write out the size of a register block. */ | |
2769 | fprintf (fp, "R %x\n", trace_regblock_size); | |
2770 | ||
2771 | /* Write out status of the tracing run (aka "tstatus" info). */ | |
6c28cbf2 SS |
2772 | fprintf (fp, "status %c;%s", |
2773 | (ts->running ? '1' : '0'), stop_reason_names[ts->stop_reason]); | |
6c28cbf2 SS |
2774 | if (ts->stop_reason == tracepoint_error) |
2775 | { | |
2776 | char *buf = (char *) alloca (strlen (ts->error_desc) * 2 + 1); | |
5d502164 | 2777 | |
6c28cbf2 | 2778 | bin2hex ((gdb_byte *) ts->error_desc, buf, 0); |
610197fd | 2779 | fprintf (fp, ":%s", buf); |
6c28cbf2 SS |
2780 | } |
2781 | fprintf (fp, ":%x", ts->stopping_tracepoint); | |
4daf5ac0 SS |
2782 | if (ts->traceframe_count >= 0) |
2783 | fprintf (fp, ";tframes:%x", ts->traceframe_count); | |
2784 | if (ts->traceframes_created >= 0) | |
2785 | fprintf (fp, ";tcreated:%x", ts->traceframes_created); | |
2786 | if (ts->buffer_free >= 0) | |
2787 | fprintf (fp, ";tfree:%x", ts->buffer_free); | |
2788 | if (ts->buffer_size >= 0) | |
2789 | fprintf (fp, ";tsize:%x", ts->buffer_size); | |
33da3f1c SS |
2790 | if (ts->disconnected_tracing) |
2791 | fprintf (fp, ";disconn:%x", ts->disconnected_tracing); | |
2792 | if (ts->circular_buffer) | |
2793 | fprintf (fp, ";circular:%x", ts->circular_buffer); | |
4daf5ac0 | 2794 | fprintf (fp, "\n"); |
00bf0b85 SS |
2795 | |
2796 | /* Note that we want to upload tracepoints and save those, rather | |
2797 | than simply writing out the local ones, because the user may have | |
2798 | changed tracepoints in GDB in preparation for a future tracing | |
2799 | run, or maybe just mass-deleted all types of breakpoints as part | |
2800 | of cleaning up. So as not to contaminate the session, leave the | |
2801 | data in its uploaded form, don't make into real tracepoints. */ | |
2802 | ||
2803 | /* Get trace state variables first, they may be checked when parsing | |
2804 | uploaded commands. */ | |
2805 | ||
2806 | target_upload_trace_state_variables (&uploaded_tsvs); | |
2807 | ||
2808 | for (utsv = uploaded_tsvs; utsv; utsv = utsv->next) | |
2809 | { | |
2810 | char *buf = ""; | |
2811 | ||
2812 | if (utsv->name) | |
2813 | { | |
2814 | buf = (char *) xmalloc (strlen (utsv->name) * 2 + 1); | |
2815 | bin2hex ((gdb_byte *) (utsv->name), buf, 0); | |
2816 | } | |
2817 | ||
2818 | fprintf (fp, "tsv %x:%s:%x:%s\n", | |
2819 | utsv->number, phex_nz (utsv->initial_value, 8), | |
2820 | utsv->builtin, buf); | |
2821 | ||
2822 | if (utsv->name) | |
2823 | xfree (buf); | |
2824 | } | |
2825 | ||
2826 | free_uploaded_tsvs (&uploaded_tsvs); | |
2827 | ||
2828 | target_upload_tracepoints (&uploaded_tps); | |
2829 | ||
2830 | for (utp = uploaded_tps; utp; utp = utp->next) | |
2831 | { | |
2832 | fprintf (fp, "tp T%x:%s:%c:%x:%x", | |
2833 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), | |
2834 | (utp->enabled ? 'E' : 'D'), utp->step, utp->pass); | |
2835 | if (utp->type == bp_fast_tracepoint) | |
2836 | fprintf (fp, ":F%x", utp->orig_size); | |
2837 | if (utp->cond) | |
2838 | fprintf (fp, ":X%x,%s", (unsigned int) strlen (utp->cond) / 2, | |
2839 | utp->cond); | |
2840 | fprintf (fp, "\n"); | |
3149d8c1 | 2841 | for (a = 0; VEC_iterate (char_ptr, utp->actions, a, act); ++a) |
00bf0b85 | 2842 | fprintf (fp, "tp A%x:%s:%s\n", |
3149d8c1 | 2843 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), act); |
0a2a54b8 | 2844 | for (a = 0; VEC_iterate (char_ptr, utp->step_actions, a, act); ++a) |
00bf0b85 | 2845 | fprintf (fp, "tp S%x:%s:%s\n", |
3149d8c1 | 2846 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), act); |
409873ef SS |
2847 | if (utp->at_string) |
2848 | { | |
2849 | encode_source_string (utp->number, utp->addr, | |
2850 | "at", utp->at_string, buf, MAX_TRACE_UPLOAD); | |
2851 | fprintf (fp, "tp Z%s\n", buf); | |
2852 | } | |
2853 | if (utp->cond_string) | |
2854 | { | |
2855 | encode_source_string (utp->number, utp->addr, | |
3e43a32a MS |
2856 | "cond", utp->cond_string, |
2857 | buf, MAX_TRACE_UPLOAD); | |
409873ef SS |
2858 | fprintf (fp, "tp Z%s\n", buf); |
2859 | } | |
3149d8c1 | 2860 | for (a = 0; VEC_iterate (char_ptr, utp->cmd_strings, a, act); ++a) |
409873ef | 2861 | { |
3149d8c1 | 2862 | encode_source_string (utp->number, utp->addr, "cmd", act, |
409873ef SS |
2863 | buf, MAX_TRACE_UPLOAD); |
2864 | fprintf (fp, "tp Z%s\n", buf); | |
2865 | } | |
00bf0b85 SS |
2866 | } |
2867 | ||
2868 | free_uploaded_tps (&uploaded_tps); | |
2869 | ||
2870 | /* Mark the end of the definition section. */ | |
2871 | fprintf (fp, "\n"); | |
2872 | ||
2873 | /* Get and write the trace data proper. We ask for big blocks, in | |
2874 | the hopes of efficiency, but will take less if the target has | |
2875 | packet size limitations or some such. */ | |
2876 | while (1) | |
2877 | { | |
2878 | gotten = target_get_raw_trace_data (buf, offset, MAX_TRACE_UPLOAD); | |
2879 | if (gotten < 0) | |
2880 | error (_("Failure to get requested trace buffer data")); | |
2881 | /* No more data is forthcoming, we're done. */ | |
2882 | if (gotten == 0) | |
2883 | break; | |
98e03262 | 2884 | written = fwrite (buf, gotten, 1, fp); |
409873ef | 2885 | if (written < 1) |
98e03262 | 2886 | perror_with_name (pathname); |
00bf0b85 SS |
2887 | offset += gotten; |
2888 | } | |
2889 | ||
409873ef | 2890 | /* Mark the end of trace data. (We know that gotten is 0 at this point.) */ |
98e03262 | 2891 | written = fwrite (&gotten, 4, 1, fp); |
409873ef | 2892 | if (written < 1) |
98e03262 | 2893 | perror_with_name (pathname); |
00bf0b85 SS |
2894 | |
2895 | do_cleanups (cleanup); | |
011aacb0 VP |
2896 | } |
2897 | ||
2898 | static void | |
2899 | trace_save_command (char *args, int from_tty) | |
2900 | { | |
2901 | int target_does_save = 0; | |
2902 | char **argv; | |
2903 | char *filename = NULL; | |
2904 | struct cleanup *back_to; | |
2905 | ||
2906 | if (args == NULL) | |
2907 | error_no_arg (_("file in which to save trace data")); | |
2908 | ||
2909 | argv = gdb_buildargv (args); | |
2910 | back_to = make_cleanup_freeargv (argv); | |
2911 | ||
2912 | for (; *argv; ++argv) | |
2913 | { | |
2914 | if (strcmp (*argv, "-r") == 0) | |
2915 | target_does_save = 1; | |
2916 | else if (**argv == '-') | |
2917 | error (_("unknown option `%s'"), *argv); | |
2918 | else | |
2919 | filename = *argv; | |
2920 | } | |
2921 | ||
2922 | if (!filename) | |
2923 | error_no_arg (_("file in which to save trace data")); | |
2924 | ||
2925 | trace_save (filename, target_does_save); | |
2926 | ||
00bf0b85 SS |
2927 | if (from_tty) |
2928 | printf_filtered (_("Trace data saved to file '%s'.\n"), args); | |
011aacb0 VP |
2929 | |
2930 | do_cleanups (back_to); | |
00bf0b85 SS |
2931 | } |
2932 | ||
d5551862 SS |
2933 | /* Tell the target what to do with an ongoing tracing run if GDB |
2934 | disconnects for some reason. */ | |
2935 | ||
2936 | void | |
2937 | send_disconnected_tracing_value (int value) | |
2938 | { | |
35b1e5cc | 2939 | target_set_disconnected_tracing (value); |
d5551862 SS |
2940 | } |
2941 | ||
2942 | static void | |
2943 | set_disconnected_tracing (char *args, int from_tty, | |
2944 | struct cmd_list_element *c) | |
2945 | { | |
2946 | send_disconnected_tracing_value (disconnected_tracing); | |
2947 | } | |
2948 | ||
4daf5ac0 SS |
2949 | static void |
2950 | set_circular_trace_buffer (char *args, int from_tty, | |
2951 | struct cmd_list_element *c) | |
2952 | { | |
2953 | target_set_circular_trace_buffer (circular_trace_buffer); | |
2954 | } | |
2955 | ||
c906108c SS |
2956 | /* Convert the memory pointed to by mem into hex, placing result in buf. |
2957 | * Return a pointer to the last char put in buf (null) | |
2958 | * "stolen" from sparc-stub.c | |
2959 | */ | |
2960 | ||
c5aa993b | 2961 | static const char hexchars[] = "0123456789abcdef"; |
c906108c | 2962 | |
47b667de AC |
2963 | static char * |
2964 | mem2hex (gdb_byte *mem, char *buf, int count) | |
c906108c | 2965 | { |
47b667de | 2966 | gdb_byte ch; |
c906108c SS |
2967 | |
2968 | while (count-- > 0) | |
2969 | { | |
2970 | ch = *mem++; | |
2971 | ||
2972 | *buf++ = hexchars[ch >> 4]; | |
2973 | *buf++ = hexchars[ch & 0xf]; | |
2974 | } | |
2975 | ||
2976 | *buf = 0; | |
2977 | ||
2978 | return buf; | |
2979 | } | |
2980 | ||
c5aa993b | 2981 | int |
fba45db2 | 2982 | get_traceframe_number (void) |
c906108c | 2983 | { |
c5aa993b | 2984 | return traceframe_number; |
c906108c SS |
2985 | } |
2986 | ||
06cd862c PA |
2987 | /* Make the traceframe NUM be the current trace frame. Does nothing |
2988 | if NUM is already current. */ | |
2989 | ||
2990 | void | |
e6e4e701 | 2991 | set_current_traceframe (int num) |
06cd862c PA |
2992 | { |
2993 | int newnum; | |
2994 | ||
2995 | if (traceframe_number == num) | |
2996 | { | |
2997 | /* Nothing to do. */ | |
2998 | return; | |
2999 | } | |
3000 | ||
3001 | newnum = target_trace_find (tfind_number, num, 0, 0, NULL); | |
3002 | ||
3003 | if (newnum != num) | |
3004 | warning (_("could not change traceframe")); | |
3005 | ||
3006 | traceframe_number = newnum; | |
3007 | ||
3008 | /* Changing the traceframe changes our view of registers and of the | |
3009 | frame chain. */ | |
3010 | registers_changed (); | |
b3b9301e PA |
3011 | |
3012 | clear_traceframe_info (); | |
06cd862c PA |
3013 | } |
3014 | ||
e6e4e701 PA |
3015 | /* Make the traceframe NUM be the current trace frame, and do nothing |
3016 | more. */ | |
3017 | ||
3018 | void | |
3019 | set_traceframe_number (int num) | |
3020 | { | |
3021 | traceframe_number = num; | |
3022 | } | |
3023 | ||
06cd862c PA |
3024 | /* A cleanup used when switching away and back from tfind mode. */ |
3025 | ||
3026 | struct current_traceframe_cleanup | |
3027 | { | |
3028 | /* The traceframe we were inspecting. */ | |
3029 | int traceframe_number; | |
3030 | }; | |
3031 | ||
3032 | static void | |
3033 | do_restore_current_traceframe_cleanup (void *arg) | |
3034 | { | |
3035 | struct current_traceframe_cleanup *old = arg; | |
3036 | ||
e6e4e701 | 3037 | set_current_traceframe (old->traceframe_number); |
06cd862c PA |
3038 | } |
3039 | ||
3040 | static void | |
3041 | restore_current_traceframe_cleanup_dtor (void *arg) | |
3042 | { | |
3043 | struct current_traceframe_cleanup *old = arg; | |
3044 | ||
3045 | xfree (old); | |
3046 | } | |
3047 | ||
3048 | struct cleanup * | |
3049 | make_cleanup_restore_current_traceframe (void) | |
3050 | { | |
3051 | struct current_traceframe_cleanup *old; | |
3052 | ||
3053 | old = xmalloc (sizeof (struct current_traceframe_cleanup)); | |
3054 | old->traceframe_number = traceframe_number; | |
3055 | ||
3056 | return make_cleanup_dtor (do_restore_current_traceframe_cleanup, old, | |
3057 | restore_current_traceframe_cleanup_dtor); | |
3058 | } | |
00bf0b85 | 3059 | |
e6e4e701 PA |
3060 | struct cleanup * |
3061 | make_cleanup_restore_traceframe_number (void) | |
3062 | { | |
3063 | return make_cleanup_restore_integer (&traceframe_number); | |
3064 | } | |
3065 | ||
00bf0b85 SS |
3066 | /* Given a number and address, return an uploaded tracepoint with that |
3067 | number, creating if necessary. */ | |
3068 | ||
3069 | struct uploaded_tp * | |
3070 | get_uploaded_tp (int num, ULONGEST addr, struct uploaded_tp **utpp) | |
3071 | { | |
3072 | struct uploaded_tp *utp; | |
3073 | ||
3074 | for (utp = *utpp; utp; utp = utp->next) | |
3075 | if (utp->number == num && utp->addr == addr) | |
3076 | return utp; | |
3077 | utp = (struct uploaded_tp *) xmalloc (sizeof (struct uploaded_tp)); | |
3078 | memset (utp, 0, sizeof (struct uploaded_tp)); | |
3079 | utp->number = num; | |
3080 | utp->addr = addr; | |
3149d8c1 SS |
3081 | utp->actions = NULL; |
3082 | utp->step_actions = NULL; | |
3083 | utp->cmd_strings = NULL; | |
00bf0b85 SS |
3084 | utp->next = *utpp; |
3085 | *utpp = utp; | |
3086 | return utp; | |
3087 | } | |
3088 | ||
3089 | static void | |
3090 | free_uploaded_tps (struct uploaded_tp **utpp) | |
3091 | { | |
3092 | struct uploaded_tp *next_one; | |
3093 | ||
3094 | while (*utpp) | |
3095 | { | |
3096 | next_one = (*utpp)->next; | |
3097 | xfree (*utpp); | |
3098 | *utpp = next_one; | |
3099 | } | |
3100 | } | |
3101 | ||
3102 | /* Given a number and address, return an uploaded tracepoint with that | |
3103 | number, creating if necessary. */ | |
3104 | ||
3105 | struct uploaded_tsv * | |
3106 | get_uploaded_tsv (int num, struct uploaded_tsv **utsvp) | |
3107 | { | |
3108 | struct uploaded_tsv *utsv; | |
3109 | ||
3110 | for (utsv = *utsvp; utsv; utsv = utsv->next) | |
3111 | if (utsv->number == num) | |
3112 | return utsv; | |
3113 | utsv = (struct uploaded_tsv *) xmalloc (sizeof (struct uploaded_tsv)); | |
3114 | memset (utsv, 0, sizeof (struct uploaded_tsv)); | |
3115 | utsv->number = num; | |
3116 | utsv->next = *utsvp; | |
3117 | *utsvp = utsv; | |
3118 | return utsv; | |
3119 | } | |
3120 | ||
3121 | static void | |
3122 | free_uploaded_tsvs (struct uploaded_tsv **utsvp) | |
3123 | { | |
3124 | struct uploaded_tsv *next_one; | |
3125 | ||
3126 | while (*utsvp) | |
3127 | { | |
3128 | next_one = (*utsvp)->next; | |
3129 | xfree (*utsvp); | |
3130 | *utsvp = next_one; | |
3131 | } | |
3132 | } | |
3133 | ||
4e5c165d HZ |
3134 | /* FIXME this function is heuristic and will miss the cases where the |
3135 | conditional is semantically identical but differs in whitespace, | |
3136 | such as "x == 0" vs "x==0". */ | |
3137 | ||
3138 | static int | |
3139 | cond_string_is_same (char *str1, char *str2) | |
3140 | { | |
3141 | if (str1 == NULL || str2 == NULL) | |
3142 | return (str1 == str2); | |
3143 | ||
3144 | return (strcmp (str1, str2) == 0); | |
3145 | } | |
3146 | ||
00bf0b85 SS |
3147 | /* Look for an existing tracepoint that seems similar enough to the |
3148 | uploaded one. Enablement isn't compared, because the user can | |
3149 | toggle that freely, and may have done so in anticipation of the | |
3150 | next trace run. */ | |
3151 | ||
d9b3f62e | 3152 | struct tracepoint * |
00bf0b85 SS |
3153 | find_matching_tracepoint (struct uploaded_tp *utp) |
3154 | { | |
3155 | VEC(breakpoint_p) *tp_vec = all_tracepoints (); | |
3156 | int ix; | |
d9b3f62e | 3157 | struct breakpoint *b; |
00bf0b85 SS |
3158 | struct bp_location *loc; |
3159 | ||
d9b3f62e | 3160 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++) |
00bf0b85 | 3161 | { |
d9b3f62e PA |
3162 | struct tracepoint *t = (struct tracepoint *) b; |
3163 | ||
3164 | if (b->type == utp->type | |
00bf0b85 SS |
3165 | && t->step_count == utp->step |
3166 | && t->pass_count == utp->pass | |
4e5c165d HZ |
3167 | && cond_string_is_same (t->base.cond_string, utp->cond_string) |
3168 | /* FIXME also test actions. */ | |
00bf0b85 SS |
3169 | ) |
3170 | { | |
3171 | /* Scan the locations for an address match. */ | |
d9b3f62e | 3172 | for (loc = b->loc; loc; loc = loc->next) |
00bf0b85 SS |
3173 | { |
3174 | if (loc->address == utp->addr) | |
3175 | return t; | |
3176 | } | |
3177 | } | |
3178 | } | |
3179 | return NULL; | |
3180 | } | |
3181 | ||
3182 | /* Given a list of tracepoints uploaded from a target, attempt to | |
3183 | match them up with existing tracepoints, and create new ones if not | |
3184 | found. */ | |
3185 | ||
3186 | void | |
3187 | merge_uploaded_tracepoints (struct uploaded_tp **uploaded_tps) | |
3188 | { | |
3189 | struct uploaded_tp *utp; | |
d9b3f62e | 3190 | struct tracepoint *t; |
00bf0b85 SS |
3191 | |
3192 | /* Look for GDB tracepoints that match up with our uploaded versions. */ | |
3193 | for (utp = *uploaded_tps; utp; utp = utp->next) | |
3194 | { | |
3195 | t = find_matching_tracepoint (utp); | |
3196 | if (t) | |
3e43a32a MS |
3197 | printf_filtered (_("Assuming tracepoint %d is same " |
3198 | "as target's tracepoint %d at %s.\n"), | |
d9b3f62e | 3199 | t->base.number, utp->number, |
3e43a32a | 3200 | paddress (get_current_arch (), utp->addr)); |
00bf0b85 SS |
3201 | else |
3202 | { | |
3203 | t = create_tracepoint_from_upload (utp); | |
3204 | if (t) | |
3e43a32a MS |
3205 | printf_filtered (_("Created tracepoint %d for " |
3206 | "target's tracepoint %d at %s.\n"), | |
d9b3f62e | 3207 | t->base.number, utp->number, |
3e43a32a | 3208 | paddress (get_current_arch (), utp->addr)); |
00bf0b85 | 3209 | else |
3e43a32a MS |
3210 | printf_filtered (_("Failed to create tracepoint for target's " |
3211 | "tracepoint %d at %s, skipping it.\n"), | |
3212 | utp->number, | |
3213 | paddress (get_current_arch (), utp->addr)); | |
00bf0b85 SS |
3214 | } |
3215 | /* Whether found or created, record the number used by the | |
3216 | target, to help with mapping target tracepoints back to their | |
3217 | counterparts here. */ | |
3218 | if (t) | |
3219 | t->number_on_target = utp->number; | |
3220 | } | |
3221 | ||
3222 | free_uploaded_tps (uploaded_tps); | |
3223 | } | |
3224 | ||
3225 | /* Trace state variables don't have much to identify them beyond their | |
3226 | name, so just use that to detect matches. */ | |
3227 | ||
3228 | struct trace_state_variable * | |
3229 | find_matching_tsv (struct uploaded_tsv *utsv) | |
3230 | { | |
3231 | if (!utsv->name) | |
3232 | return NULL; | |
3233 | ||
3234 | return find_trace_state_variable (utsv->name); | |
3235 | } | |
3236 | ||
3237 | struct trace_state_variable * | |
3238 | create_tsv_from_upload (struct uploaded_tsv *utsv) | |
3239 | { | |
3240 | const char *namebase; | |
3241 | char buf[20]; | |
3242 | int try_num = 0; | |
3243 | struct trace_state_variable *tsv; | |
3244 | ||
3245 | if (utsv->name) | |
3246 | { | |
3247 | namebase = utsv->name; | |
3248 | sprintf (buf, "%s", namebase); | |
3249 | } | |
3250 | else | |
3251 | { | |
3252 | namebase = "__tsv"; | |
3253 | sprintf (buf, "%s_%d", namebase, try_num++); | |
3254 | } | |
3255 | ||
3256 | /* Fish for a name that is not in use. */ | |
c378eb4e | 3257 | /* (should check against all internal vars?) */ |
00bf0b85 SS |
3258 | while (find_trace_state_variable (buf)) |
3259 | sprintf (buf, "%s_%d", namebase, try_num++); | |
3260 | ||
3261 | /* We have an available name, create the variable. */ | |
a0aa2878 | 3262 | tsv = create_trace_state_variable (buf); |
00bf0b85 SS |
3263 | tsv->initial_value = utsv->initial_value; |
3264 | tsv->builtin = utsv->builtin; | |
3265 | ||
3266 | return tsv; | |
3267 | } | |
3268 | ||
3269 | /* Given a list of uploaded trace state variables, try to match them | |
3270 | up with existing variables, or create additional ones. */ | |
3271 | ||
3272 | void | |
3273 | merge_uploaded_trace_state_variables (struct uploaded_tsv **uploaded_tsvs) | |
3274 | { | |
3275 | int ix; | |
3276 | struct uploaded_tsv *utsv; | |
3277 | struct trace_state_variable *tsv; | |
3278 | int highest; | |
3279 | ||
3280 | /* Most likely some numbers will have to be reassigned as part of | |
3281 | the merge, so clear them all in anticipation. */ | |
3282 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3283 | tsv->number = 0; | |
3284 | ||
3285 | for (utsv = *uploaded_tsvs; utsv; utsv = utsv->next) | |
3286 | { | |
3287 | tsv = find_matching_tsv (utsv); | |
3288 | if (tsv) | |
417b5110 DJ |
3289 | { |
3290 | if (info_verbose) | |
3e43a32a MS |
3291 | printf_filtered (_("Assuming trace state variable $%s " |
3292 | "is same as target's variable %d.\n"), | |
417b5110 DJ |
3293 | tsv->name, utsv->number); |
3294 | } | |
00bf0b85 SS |
3295 | else |
3296 | { | |
3297 | tsv = create_tsv_from_upload (utsv); | |
417b5110 | 3298 | if (info_verbose) |
3e43a32a MS |
3299 | printf_filtered (_("Created trace state variable " |
3300 | "$%s for target's variable %d.\n"), | |
417b5110 | 3301 | tsv->name, utsv->number); |
00bf0b85 SS |
3302 | } |
3303 | /* Give precedence to numberings that come from the target. */ | |
3304 | if (tsv) | |
3305 | tsv->number = utsv->number; | |
3306 | } | |
3307 | ||
3308 | /* Renumber everything that didn't get a target-assigned number. */ | |
3309 | highest = 0; | |
3310 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3311 | if (tsv->number > highest) | |
3312 | highest = tsv->number; | |
3313 | ||
3314 | ++highest; | |
3315 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3316 | if (tsv->number == 0) | |
3317 | tsv->number = highest++; | |
3318 | ||
3319 | free_uploaded_tsvs (uploaded_tsvs); | |
3320 | } | |
3321 | ||
3322 | /* target tfile command */ | |
3323 | ||
3324 | struct target_ops tfile_ops; | |
3325 | ||
3326 | /* Fill in tfile_ops with its defined operations and properties. */ | |
3327 | ||
3328 | #define TRACE_HEADER_SIZE 8 | |
3329 | ||
98e03262 | 3330 | char *trace_filename; |
00bf0b85 SS |
3331 | int trace_fd = -1; |
3332 | off_t trace_frames_offset; | |
3333 | off_t cur_offset; | |
e6e4e701 | 3334 | int cur_traceframe_number; |
00bf0b85 SS |
3335 | int cur_data_size; |
3336 | int trace_regblock_size; | |
3337 | ||
3338 | static void tfile_interp_line (char *line, | |
3339 | struct uploaded_tp **utpp, | |
3340 | struct uploaded_tsv **utsvp); | |
3341 | ||
9f41c731 PA |
3342 | /* Read SIZE bytes into READBUF from the trace frame, starting at |
3343 | TRACE_FD's current position. Note that this call `read' | |
3344 | underneath, hence it advances the file's seek position. Throws an | |
3345 | error if the `read' syscall fails, or less than SIZE bytes are | |
3346 | read. */ | |
3347 | ||
3348 | static void | |
3349 | tfile_read (gdb_byte *readbuf, int size) | |
3350 | { | |
3351 | int gotten; | |
3352 | ||
3353 | gotten = read (trace_fd, readbuf, size); | |
3354 | if (gotten < 0) | |
3355 | perror_with_name (trace_filename); | |
3356 | else if (gotten < size) | |
3357 | error (_("Premature end of file while reading trace file")); | |
3358 | } | |
3359 | ||
00bf0b85 SS |
3360 | static void |
3361 | tfile_open (char *filename, int from_tty) | |
3362 | { | |
e93a69ed | 3363 | volatile struct gdb_exception ex; |
00bf0b85 SS |
3364 | char *temp; |
3365 | struct cleanup *old_chain; | |
3366 | int flags; | |
3367 | int scratch_chan; | |
3368 | char header[TRACE_HEADER_SIZE]; | |
c378eb4e | 3369 | char linebuf[1000]; /* Should be max remote packet size or so. */ |
00bf0b85 | 3370 | char byte; |
9f41c731 | 3371 | int bytes, i; |
00bf0b85 SS |
3372 | struct trace_status *ts; |
3373 | struct uploaded_tp *uploaded_tps = NULL; | |
3374 | struct uploaded_tsv *uploaded_tsvs = NULL; | |
3375 | ||
3376 | target_preopen (from_tty); | |
3377 | if (!filename) | |
3378 | error (_("No trace file specified.")); | |
3379 | ||
3380 | filename = tilde_expand (filename); | |
3381 | if (!IS_ABSOLUTE_PATH(filename)) | |
3382 | { | |
c4f7c687 | 3383 | temp = concat (current_directory, "/", filename, (char *) NULL); |
00bf0b85 SS |
3384 | xfree (filename); |
3385 | filename = temp; | |
3386 | } | |
3387 | ||
3388 | old_chain = make_cleanup (xfree, filename); | |
3389 | ||
3390 | flags = O_BINARY | O_LARGEFILE; | |
3391 | flags |= O_RDONLY; | |
3392 | scratch_chan = open (filename, flags, 0); | |
3393 | if (scratch_chan < 0) | |
3394 | perror_with_name (filename); | |
3395 | ||
3396 | /* Looks semi-reasonable. Toss the old trace file and work on the new. */ | |
3397 | ||
c378eb4e | 3398 | discard_cleanups (old_chain); /* Don't free filename any more. */ |
00bf0b85 SS |
3399 | unpush_target (&tfile_ops); |
3400 | ||
98e03262 | 3401 | trace_filename = xstrdup (filename); |
00bf0b85 SS |
3402 | trace_fd = scratch_chan; |
3403 | ||
3404 | bytes = 0; | |
3405 | /* Read the file header and test for validity. */ | |
9f41c731 | 3406 | tfile_read ((gdb_byte *) &header, TRACE_HEADER_SIZE); |
98e03262 | 3407 | |
00bf0b85 SS |
3408 | bytes += TRACE_HEADER_SIZE; |
3409 | if (!(header[0] == 0x7f | |
3410 | && (strncmp (header + 1, "TRACE0\n", 7) == 0))) | |
3411 | error (_("File is not a valid trace file.")); | |
3412 | ||
e93a69ed PA |
3413 | push_target (&tfile_ops); |
3414 | ||
00bf0b85 SS |
3415 | trace_regblock_size = 0; |
3416 | ts = current_trace_status (); | |
3417 | /* We know we're working with a file. */ | |
3418 | ts->from_file = 1; | |
3419 | /* Set defaults in case there is no status line. */ | |
3420 | ts->running_known = 0; | |
3421 | ts->stop_reason = trace_stop_reason_unknown; | |
3422 | ts->traceframe_count = -1; | |
3423 | ts->buffer_free = 0; | |
33da3f1c SS |
3424 | ts->disconnected_tracing = 0; |
3425 | ts->circular_buffer = 0; | |
00bf0b85 | 3426 | |
e6e4e701 PA |
3427 | cur_traceframe_number = -1; |
3428 | ||
e93a69ed | 3429 | TRY_CATCH (ex, RETURN_MASK_ALL) |
00bf0b85 | 3430 | { |
e93a69ed PA |
3431 | /* Read through a section of newline-terminated lines that |
3432 | define things like tracepoints. */ | |
3433 | i = 0; | |
3434 | while (1) | |
00bf0b85 | 3435 | { |
e93a69ed PA |
3436 | tfile_read (&byte, 1); |
3437 | ||
3438 | ++bytes; | |
3439 | if (byte == '\n') | |
3440 | { | |
3441 | /* Empty line marks end of the definition section. */ | |
3442 | if (i == 0) | |
3443 | break; | |
3444 | linebuf[i] = '\0'; | |
3445 | i = 0; | |
3446 | tfile_interp_line (linebuf, &uploaded_tps, &uploaded_tsvs); | |
3447 | } | |
3448 | else | |
3449 | linebuf[i++] = byte; | |
3450 | if (i >= 1000) | |
3451 | error (_("Excessively long lines in trace file")); | |
00bf0b85 | 3452 | } |
e93a69ed PA |
3453 | |
3454 | /* Record the starting offset of the binary trace data. */ | |
3455 | trace_frames_offset = bytes; | |
3456 | ||
3457 | /* If we don't have a blocksize, we can't interpret the | |
3458 | traceframes. */ | |
3459 | if (trace_regblock_size == 0) | |
3460 | error (_("No register block size recorded in trace file")); | |
3461 | } | |
3462 | if (ex.reason < 0) | |
3463 | { | |
3464 | /* Pop the partially set up target. */ | |
3465 | pop_target (); | |
3466 | throw_exception (ex); | |
00bf0b85 SS |
3467 | } |
3468 | ||
e93a69ed PA |
3469 | inferior_appeared (current_inferior (), TFILE_PID); |
3470 | inferior_ptid = pid_to_ptid (TFILE_PID); | |
3471 | add_thread_silent (inferior_ptid); | |
3472 | ||
3473 | if (ts->traceframe_count <= 0) | |
3474 | warning (_("No traceframes present in this file.")); | |
3475 | ||
00bf0b85 SS |
3476 | /* Add the file's tracepoints and variables into the current mix. */ |
3477 | ||
10ef8d6a PA |
3478 | /* Get trace state variables first, they may be checked when parsing |
3479 | uploaded commands. */ | |
00bf0b85 SS |
3480 | merge_uploaded_trace_state_variables (&uploaded_tsvs); |
3481 | ||
10ef8d6a PA |
3482 | merge_uploaded_tracepoints (&uploaded_tps); |
3483 | ||
00bf0b85 | 3484 | post_create_inferior (&tfile_ops, from_tty); |
00bf0b85 SS |
3485 | } |
3486 | ||
3487 | /* Interpret the given line from the definitions part of the trace | |
3488 | file. */ | |
3489 | ||
3490 | static void | |
3491 | tfile_interp_line (char *line, | |
3492 | struct uploaded_tp **utpp, struct uploaded_tsv **utsvp) | |
3493 | { | |
3494 | char *p = line; | |
3495 | ||
3496 | if (strncmp (p, "R ", strlen ("R ")) == 0) | |
3497 | { | |
3498 | p += strlen ("R "); | |
3499 | trace_regblock_size = strtol (p, &p, 16); | |
3500 | } | |
3501 | else if (strncmp (p, "status ", strlen ("status ")) == 0) | |
3502 | { | |
3503 | p += strlen ("status "); | |
3504 | parse_trace_status (p, current_trace_status ()); | |
3505 | } | |
3506 | else if (strncmp (p, "tp ", strlen ("tp ")) == 0) | |
3507 | { | |
3508 | p += strlen ("tp "); | |
3509 | parse_tracepoint_definition (p, utpp); | |
3510 | } | |
3511 | else if (strncmp (p, "tsv ", strlen ("tsv ")) == 0) | |
3512 | { | |
3513 | p += strlen ("tsv "); | |
3514 | parse_tsv_definition (p, utsvp); | |
3515 | } | |
3516 | else | |
a73c6dcd | 3517 | warning (_("Ignoring trace file definition \"%s\""), line); |
00bf0b85 SS |
3518 | } |
3519 | ||
3520 | /* Parse the part of trace status syntax that is shared between | |
3521 | the remote protocol and the trace file reader. */ | |
3522 | ||
00bf0b85 SS |
3523 | void |
3524 | parse_trace_status (char *line, struct trace_status *ts) | |
3525 | { | |
6c28cbf2 | 3526 | char *p = line, *p1, *p2, *p_temp; |
00bf0b85 SS |
3527 | ULONGEST val; |
3528 | ||
3529 | ts->running_known = 1; | |
3530 | ts->running = (*p++ == '1'); | |
3531 | ts->stop_reason = trace_stop_reason_unknown; | |
a609a0c8 PA |
3532 | xfree (ts->error_desc); |
3533 | ts->error_desc = NULL; | |
4daf5ac0 SS |
3534 | ts->traceframe_count = -1; |
3535 | ts->traceframes_created = -1; | |
3536 | ts->buffer_free = -1; | |
3537 | ts->buffer_size = -1; | |
33da3f1c SS |
3538 | ts->disconnected_tracing = 0; |
3539 | ts->circular_buffer = 0; | |
4daf5ac0 | 3540 | |
00bf0b85 SS |
3541 | while (*p++) |
3542 | { | |
3543 | p1 = strchr (p, ':'); | |
3544 | if (p1 == NULL) | |
3545 | error (_("Malformed trace status, at %s\n\ | |
3546 | Status line: '%s'\n"), p, line); | |
3547 | if (strncmp (p, stop_reason_names[trace_buffer_full], p1 - p) == 0) | |
3548 | { | |
3549 | p = unpack_varlen_hex (++p1, &val); | |
3550 | ts->stop_reason = trace_buffer_full; | |
3551 | } | |
3552 | else if (strncmp (p, stop_reason_names[trace_never_run], p1 - p) == 0) | |
3553 | { | |
3554 | p = unpack_varlen_hex (++p1, &val); | |
3555 | ts->stop_reason = trace_never_run; | |
3556 | } | |
3e43a32a MS |
3557 | else if (strncmp (p, stop_reason_names[tracepoint_passcount], |
3558 | p1 - p) == 0) | |
00bf0b85 SS |
3559 | { |
3560 | p = unpack_varlen_hex (++p1, &val); | |
3561 | ts->stop_reason = tracepoint_passcount; | |
3562 | ts->stopping_tracepoint = val; | |
3563 | } | |
3564 | else if (strncmp (p, stop_reason_names[tstop_command], p1 - p) == 0) | |
3565 | { | |
3566 | p = unpack_varlen_hex (++p1, &val); | |
3567 | ts->stop_reason = tstop_command; | |
3568 | } | |
33da3f1c SS |
3569 | else if (strncmp (p, stop_reason_names[trace_disconnected], p1 - p) == 0) |
3570 | { | |
3571 | p = unpack_varlen_hex (++p1, &val); | |
3572 | ts->stop_reason = trace_disconnected; | |
3573 | } | |
6c28cbf2 SS |
3574 | else if (strncmp (p, stop_reason_names[tracepoint_error], p1 - p) == 0) |
3575 | { | |
3576 | p2 = strchr (++p1, ':'); | |
3577 | if (p2 != p1) | |
3578 | { | |
3579 | int end; | |
99b5e152 PA |
3580 | |
3581 | ts->error_desc = xmalloc ((p2 - p1) / 2 + 1); | |
3582 | end = hex2bin (p1, ts->error_desc, (p2 - p1) / 2); | |
6c28cbf2 SS |
3583 | ts->error_desc[end] = '\0'; |
3584 | } | |
a609a0c8 PA |
3585 | else |
3586 | ts->error_desc = xstrdup (""); | |
3587 | ||
6c28cbf2 SS |
3588 | p = unpack_varlen_hex (++p2, &val); |
3589 | ts->stopping_tracepoint = val; | |
3590 | ts->stop_reason = tracepoint_error; | |
3591 | } | |
4daf5ac0 | 3592 | else if (strncmp (p, "tframes", p1 - p) == 0) |
00bf0b85 SS |
3593 | { |
3594 | p = unpack_varlen_hex (++p1, &val); | |
3595 | ts->traceframe_count = val; | |
3596 | } | |
4daf5ac0 SS |
3597 | else if (strncmp (p, "tcreated", p1 - p) == 0) |
3598 | { | |
3599 | p = unpack_varlen_hex (++p1, &val); | |
3600 | ts->traceframes_created = val; | |
3601 | } | |
3602 | else if (strncmp (p, "tfree", p1 - p) == 0) | |
00bf0b85 SS |
3603 | { |
3604 | p = unpack_varlen_hex (++p1, &val); | |
3605 | ts->buffer_free = val; | |
3606 | } | |
4daf5ac0 SS |
3607 | else if (strncmp (p, "tsize", p1 - p) == 0) |
3608 | { | |
3609 | p = unpack_varlen_hex (++p1, &val); | |
3610 | ts->buffer_size = val; | |
3611 | } | |
33da3f1c SS |
3612 | else if (strncmp (p, "disconn", p1 - p) == 0) |
3613 | { | |
3614 | p = unpack_varlen_hex (++p1, &val); | |
3615 | ts->disconnected_tracing = val; | |
3616 | } | |
3617 | else if (strncmp (p, "circular", p1 - p) == 0) | |
3618 | { | |
3619 | p = unpack_varlen_hex (++p1, &val); | |
3620 | ts->circular_buffer = val; | |
3621 | } | |
00bf0b85 SS |
3622 | else |
3623 | { | |
3624 | /* Silently skip unknown optional info. */ | |
3625 | p_temp = strchr (p1 + 1, ';'); | |
3626 | if (p_temp) | |
3627 | p = p_temp; | |
3628 | else | |
3629 | /* Must be at the end. */ | |
3630 | break; | |
3631 | } | |
3632 | } | |
3633 | } | |
3634 | ||
409873ef SS |
3635 | /* Given a line of text defining a part of a tracepoint, parse it into |
3636 | an "uploaded tracepoint". */ | |
00bf0b85 SS |
3637 | |
3638 | void | |
3639 | parse_tracepoint_definition (char *line, struct uploaded_tp **utpp) | |
3640 | { | |
3641 | char *p; | |
3642 | char piece; | |
409873ef | 3643 | ULONGEST num, addr, step, pass, orig_size, xlen, start; |
2a2287c7 | 3644 | int enabled, end; |
00bf0b85 | 3645 | enum bptype type; |
2a2287c7 | 3646 | char *cond, *srctype, *buf; |
00bf0b85 SS |
3647 | struct uploaded_tp *utp = NULL; |
3648 | ||
3649 | p = line; | |
3650 | /* Both tracepoint and action definitions start with the same number | |
3651 | and address sequence. */ | |
3652 | piece = *p++; | |
3653 | p = unpack_varlen_hex (p, &num); | |
3654 | p++; /* skip a colon */ | |
3655 | p = unpack_varlen_hex (p, &addr); | |
3656 | p++; /* skip a colon */ | |
3657 | if (piece == 'T') | |
3658 | { | |
3659 | enabled = (*p++ == 'E'); | |
3660 | p++; /* skip a colon */ | |
3661 | p = unpack_varlen_hex (p, &step); | |
3662 | p++; /* skip a colon */ | |
3663 | p = unpack_varlen_hex (p, &pass); | |
3664 | type = bp_tracepoint; | |
3665 | cond = NULL; | |
3666 | /* Thumb through optional fields. */ | |
3667 | while (*p == ':') | |
3668 | { | |
3669 | p++; /* skip a colon */ | |
3670 | if (*p == 'F') | |
3671 | { | |
3672 | type = bp_fast_tracepoint; | |
3673 | p++; | |
3674 | p = unpack_varlen_hex (p, &orig_size); | |
3675 | } | |
0fb4aa4b PA |
3676 | else if (*p == 'S') |
3677 | { | |
3678 | type = bp_static_tracepoint; | |
3679 | p++; | |
3680 | } | |
00bf0b85 SS |
3681 | else if (*p == 'X') |
3682 | { | |
3683 | p++; | |
3684 | p = unpack_varlen_hex (p, &xlen); | |
3685 | p++; /* skip a comma */ | |
3686 | cond = (char *) xmalloc (2 * xlen + 1); | |
3687 | strncpy (cond, p, 2 * xlen); | |
3688 | cond[2 * xlen] = '\0'; | |
3689 | p += 2 * xlen; | |
3690 | } | |
3691 | else | |
3e43a32a MS |
3692 | warning (_("Unrecognized char '%c' in tracepoint " |
3693 | "definition, skipping rest"), *p); | |
00bf0b85 SS |
3694 | } |
3695 | utp = get_uploaded_tp (num, addr, utpp); | |
3696 | utp->type = type; | |
3697 | utp->enabled = enabled; | |
3698 | utp->step = step; | |
3699 | utp->pass = pass; | |
3700 | utp->cond = cond; | |
3701 | } | |
3702 | else if (piece == 'A') | |
3703 | { | |
3704 | utp = get_uploaded_tp (num, addr, utpp); | |
3149d8c1 | 3705 | VEC_safe_push (char_ptr, utp->actions, xstrdup (p)); |
00bf0b85 SS |
3706 | } |
3707 | else if (piece == 'S') | |
3708 | { | |
3709 | utp = get_uploaded_tp (num, addr, utpp); | |
3149d8c1 | 3710 | VEC_safe_push (char_ptr, utp->step_actions, xstrdup (p)); |
00bf0b85 | 3711 | } |
409873ef SS |
3712 | else if (piece == 'Z') |
3713 | { | |
3714 | /* Parse a chunk of source form definition. */ | |
3715 | utp = get_uploaded_tp (num, addr, utpp); | |
3716 | srctype = p; | |
3717 | p = strchr (p, ':'); | |
3718 | p++; /* skip a colon */ | |
3719 | p = unpack_varlen_hex (p, &start); | |
3720 | p++; /* skip a colon */ | |
3721 | p = unpack_varlen_hex (p, &xlen); | |
3722 | p++; /* skip a colon */ | |
3723 | ||
3724 | buf = alloca (strlen (line)); | |
3725 | ||
3726 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3727 | buf[end] = '\0'; | |
3728 | ||
3729 | if (strncmp (srctype, "at:", strlen ("at:")) == 0) | |
3730 | utp->at_string = xstrdup (buf); | |
3731 | else if (strncmp (srctype, "cond:", strlen ("cond:")) == 0) | |
3732 | utp->cond_string = xstrdup (buf); | |
3733 | else if (strncmp (srctype, "cmd:", strlen ("cmd:")) == 0) | |
3149d8c1 | 3734 | VEC_safe_push (char_ptr, utp->cmd_strings, xstrdup (buf)); |
409873ef | 3735 | } |
00bf0b85 SS |
3736 | else |
3737 | { | |
409873ef SS |
3738 | /* Don't error out, the target might be sending us optional |
3739 | info that we don't care about. */ | |
3740 | warning (_("Unrecognized tracepoint piece '%c', ignoring"), piece); | |
00bf0b85 SS |
3741 | } |
3742 | } | |
3743 | ||
3744 | /* Convert a textual description of a trace state variable into an | |
3745 | uploaded object. */ | |
3746 | ||
3747 | void | |
3748 | parse_tsv_definition (char *line, struct uploaded_tsv **utsvp) | |
3749 | { | |
3750 | char *p, *buf; | |
3751 | ULONGEST num, initval, builtin; | |
3752 | int end; | |
3753 | struct uploaded_tsv *utsv = NULL; | |
3754 | ||
3755 | buf = alloca (strlen (line)); | |
3756 | ||
3757 | p = line; | |
3758 | p = unpack_varlen_hex (p, &num); | |
3759 | p++; /* skip a colon */ | |
3760 | p = unpack_varlen_hex (p, &initval); | |
3761 | p++; /* skip a colon */ | |
3762 | p = unpack_varlen_hex (p, &builtin); | |
3763 | p++; /* skip a colon */ | |
3764 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3765 | buf[end] = '\0'; | |
3766 | ||
3767 | utsv = get_uploaded_tsv (num, utsvp); | |
3768 | utsv->initial_value = initval; | |
3769 | utsv->builtin = builtin; | |
3770 | utsv->name = xstrdup (buf); | |
3771 | } | |
3772 | ||
3773 | /* Close the trace file and generally clean up. */ | |
3774 | ||
3775 | static void | |
3776 | tfile_close (int quitting) | |
3777 | { | |
3778 | int pid; | |
3779 | ||
3780 | if (trace_fd < 0) | |
3781 | return; | |
3782 | ||
3783 | pid = ptid_get_pid (inferior_ptid); | |
c378eb4e | 3784 | inferior_ptid = null_ptid; /* Avoid confusion from thread stuff. */ |
00bf0b85 SS |
3785 | exit_inferior_silent (pid); |
3786 | ||
3787 | close (trace_fd); | |
3788 | trace_fd = -1; | |
e93a69ed PA |
3789 | xfree (trace_filename); |
3790 | trace_filename = NULL; | |
00bf0b85 SS |
3791 | } |
3792 | ||
3793 | static void | |
3794 | tfile_files_info (struct target_ops *t) | |
3795 | { | |
c378eb4e | 3796 | /* (it would be useful to mention the name of the file). */ |
00bf0b85 SS |
3797 | printf_filtered ("Looking at a trace file.\n"); |
3798 | } | |
3799 | ||
3800 | /* The trace status for a file is that tracing can never be run. */ | |
3801 | ||
3802 | static int | |
3803 | tfile_get_trace_status (struct trace_status *ts) | |
3804 | { | |
3805 | /* Other bits of trace status were collected as part of opening the | |
3806 | trace files, so nothing to do here. */ | |
3807 | ||
3808 | return -1; | |
3809 | } | |
3810 | ||
3811 | /* Given the position of a traceframe in the file, figure out what | |
3812 | address the frame was collected at. This would normally be the | |
3813 | value of a collected PC register, but if not available, we | |
3814 | improvise. */ | |
3815 | ||
3816 | static ULONGEST | |
3817 | tfile_get_traceframe_address (off_t tframe_offset) | |
3818 | { | |
3819 | ULONGEST addr = 0; | |
3820 | short tpnum; | |
d9b3f62e | 3821 | struct tracepoint *tp; |
00bf0b85 SS |
3822 | off_t saved_offset = cur_offset; |
3823 | ||
c378eb4e | 3824 | /* FIXME dig pc out of collected registers. */ |
00bf0b85 SS |
3825 | |
3826 | /* Fall back to using tracepoint address. */ | |
3827 | lseek (trace_fd, tframe_offset, SEEK_SET); | |
9f41c731 | 3828 | tfile_read ((gdb_byte *) &tpnum, 2); |
8991e9fa HZ |
3829 | tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2, |
3830 | gdbarch_byte_order | |
3831 | (target_gdbarch)); | |
98e03262 | 3832 | |
00bf0b85 | 3833 | tp = get_tracepoint_by_number_on_target (tpnum); |
c378eb4e | 3834 | /* FIXME this is a poor heuristic if multiple locations. */ |
d9b3f62e PA |
3835 | if (tp && tp->base.loc) |
3836 | addr = tp->base.loc->address; | |
00bf0b85 SS |
3837 | |
3838 | /* Restore our seek position. */ | |
3839 | cur_offset = saved_offset; | |
3840 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3841 | return addr; | |
3842 | } | |
3843 | ||
e6e4e701 PA |
3844 | /* Make tfile's selected traceframe match GDB's selected |
3845 | traceframe. */ | |
3846 | ||
3847 | static void | |
3848 | set_tfile_traceframe (void) | |
3849 | { | |
3850 | int newnum; | |
3851 | ||
3852 | if (cur_traceframe_number == get_traceframe_number ()) | |
3853 | return; | |
3854 | ||
3855 | /* Avoid recursion, tfile_trace_find calls us again. */ | |
3856 | cur_traceframe_number = get_traceframe_number (); | |
3857 | ||
3858 | newnum = target_trace_find (tfind_number, | |
3859 | get_traceframe_number (), 0, 0, NULL); | |
3860 | ||
3861 | /* Should not happen. If it does, all bets are off. */ | |
3862 | if (newnum != get_traceframe_number ()) | |
3863 | warning (_("could not set tfile's traceframe")); | |
3864 | } | |
3865 | ||
00bf0b85 SS |
3866 | /* Given a type of search and some parameters, scan the collection of |
3867 | traceframes in the file looking for a match. When found, return | |
3868 | both the traceframe and tracepoint number, otherwise -1 for | |
3869 | each. */ | |
3870 | ||
3871 | static int | |
3872 | tfile_trace_find (enum trace_find_type type, int num, | |
3873 | ULONGEST addr1, ULONGEST addr2, int *tpp) | |
3874 | { | |
3875 | short tpnum; | |
9f41c731 | 3876 | int tfnum = 0, found = 0; |
8991e9fa | 3877 | unsigned int data_size; |
d9b3f62e | 3878 | struct tracepoint *tp; |
00bf0b85 SS |
3879 | off_t offset, tframe_offset; |
3880 | ULONGEST tfaddr; | |
3881 | ||
e6e4e701 PA |
3882 | /* Lookups other than by absolute frame number depend on the current |
3883 | trace selected, so make sure it is correct on the tfile end | |
3884 | first. */ | |
3885 | if (type != tfind_number) | |
3886 | set_tfile_traceframe (); | |
fb80a3c5 HZ |
3887 | else if (num == -1) |
3888 | { | |
3889 | if (tpp) | |
3890 | *tpp = -1; | |
3891 | return -1; | |
3892 | } | |
e6e4e701 | 3893 | |
00bf0b85 SS |
3894 | lseek (trace_fd, trace_frames_offset, SEEK_SET); |
3895 | offset = trace_frames_offset; | |
3896 | while (1) | |
3897 | { | |
3898 | tframe_offset = offset; | |
9f41c731 | 3899 | tfile_read ((gdb_byte *) &tpnum, 2); |
8991e9fa HZ |
3900 | tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2, |
3901 | gdbarch_byte_order | |
3902 | (target_gdbarch)); | |
00bf0b85 SS |
3903 | offset += 2; |
3904 | if (tpnum == 0) | |
3905 | break; | |
9f41c731 | 3906 | tfile_read ((gdb_byte *) &data_size, 4); |
8991e9fa HZ |
3907 | data_size = (unsigned int) extract_unsigned_integer |
3908 | ((gdb_byte *) &data_size, 4, | |
3909 | gdbarch_byte_order (target_gdbarch)); | |
00bf0b85 SS |
3910 | offset += 4; |
3911 | switch (type) | |
3912 | { | |
3913 | case tfind_number: | |
3914 | if (tfnum == num) | |
3915 | found = 1; | |
3916 | break; | |
3917 | case tfind_pc: | |
3918 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3919 | if (tfaddr == addr1) | |
3920 | found = 1; | |
3921 | break; | |
3922 | case tfind_tp: | |
3923 | tp = get_tracepoint (num); | |
3924 | if (tp && tpnum == tp->number_on_target) | |
3925 | found = 1; | |
3926 | break; | |
3927 | case tfind_range: | |
3928 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3929 | if (addr1 <= tfaddr && tfaddr <= addr2) | |
3930 | found = 1; | |
3931 | break; | |
3932 | case tfind_outside: | |
3933 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3934 | if (!(addr1 <= tfaddr && tfaddr <= addr2)) | |
3935 | found = 1; | |
3936 | break; | |
3937 | default: | |
3938 | internal_error (__FILE__, __LINE__, _("unknown tfind type")); | |
3939 | } | |
3940 | if (found) | |
3941 | { | |
00bf0b85 SS |
3942 | if (tpp) |
3943 | *tpp = tpnum; | |
3944 | cur_offset = offset; | |
3945 | cur_data_size = data_size; | |
e6e4e701 | 3946 | cur_traceframe_number = tfnum; |
00bf0b85 SS |
3947 | return tfnum; |
3948 | } | |
3949 | /* Skip past the traceframe's data. */ | |
3950 | lseek (trace_fd, data_size, SEEK_CUR); | |
3951 | offset += data_size; | |
3952 | /* Update our own count of traceframes. */ | |
3953 | ++tfnum; | |
3954 | } | |
3955 | /* Did not find what we were looking for. */ | |
3956 | if (tpp) | |
3957 | *tpp = -1; | |
3958 | return -1; | |
3959 | } | |
3960 | ||
9f41c731 PA |
3961 | /* Prototype of the callback passed to tframe_walk_blocks. */ |
3962 | typedef int (*walk_blocks_callback_func) (char blocktype, void *data); | |
3963 | ||
3964 | /* Callback for traceframe_walk_blocks, used to find a given block | |
3965 | type in a traceframe. */ | |
3966 | ||
3967 | static int | |
3968 | match_blocktype (char blocktype, void *data) | |
3969 | { | |
3970 | char *wantedp = data; | |
3971 | ||
3972 | if (*wantedp == blocktype) | |
3973 | return 1; | |
3974 | ||
3975 | return 0; | |
3976 | } | |
3977 | ||
3978 | /* Walk over all traceframe block starting at POS offset from | |
3979 | CUR_OFFSET, and call CALLBACK for each block found, passing in DATA | |
3980 | unmodified. If CALLBACK returns true, this returns the position in | |
3981 | the traceframe where the block is found, relative to the start of | |
3982 | the traceframe (cur_offset). Returns -1 if no callback call | |
3983 | returned true, indicating that all blocks have been walked. */ | |
3984 | ||
3985 | static int | |
3986 | traceframe_walk_blocks (walk_blocks_callback_func callback, | |
3987 | int pos, void *data) | |
3988 | { | |
3989 | /* Iterate through a traceframe's blocks, looking for a block of the | |
3990 | requested type. */ | |
3991 | ||
3992 | lseek (trace_fd, cur_offset + pos, SEEK_SET); | |
3993 | while (pos < cur_data_size) | |
3994 | { | |
3995 | unsigned short mlen; | |
3996 | char block_type; | |
3997 | ||
3998 | tfile_read (&block_type, 1); | |
3999 | ||
4000 | ++pos; | |
4001 | ||
4002 | if ((*callback) (block_type, data)) | |
4003 | return pos; | |
4004 | ||
4005 | switch (block_type) | |
4006 | { | |
4007 | case 'R': | |
4008 | lseek (trace_fd, cur_offset + pos + trace_regblock_size, SEEK_SET); | |
4009 | pos += trace_regblock_size; | |
4010 | break; | |
4011 | case 'M': | |
4012 | lseek (trace_fd, cur_offset + pos + 8, SEEK_SET); | |
4013 | tfile_read ((gdb_byte *) &mlen, 2); | |
4014 | mlen = (unsigned short) | |
4015 | extract_unsigned_integer ((gdb_byte *) &mlen, 2, | |
4016 | gdbarch_byte_order | |
4017 | (target_gdbarch)); | |
4018 | lseek (trace_fd, mlen, SEEK_CUR); | |
4019 | pos += (8 + 2 + mlen); | |
4020 | break; | |
4021 | case 'V': | |
4022 | lseek (trace_fd, cur_offset + pos + 4 + 8, SEEK_SET); | |
4023 | pos += (4 + 8); | |
4024 | break; | |
4025 | default: | |
c2f0d045 | 4026 | error (_("Unknown block type '%c' (0x%x) in trace frame"), |
9f41c731 PA |
4027 | block_type, block_type); |
4028 | break; | |
4029 | } | |
4030 | } | |
4031 | ||
4032 | return -1; | |
4033 | } | |
4034 | ||
4035 | /* Convenience wrapper around traceframe_walk_blocks. Looks for the | |
4036 | position offset of a block of type TYPE_WANTED in the current trace | |
4037 | frame, starting at POS. Returns -1 if no such block was found. */ | |
4038 | ||
4039 | static int | |
4040 | traceframe_find_block_type (char type_wanted, int pos) | |
4041 | { | |
4042 | return traceframe_walk_blocks (match_blocktype, pos, &type_wanted); | |
4043 | } | |
4044 | ||
00bf0b85 SS |
4045 | /* Look for a block of saved registers in the traceframe, and get the |
4046 | requested register from it. */ | |
4047 | ||
4048 | static void | |
4049 | tfile_fetch_registers (struct target_ops *ops, | |
4050 | struct regcache *regcache, int regno) | |
4051 | { | |
4052 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
4053 | char block_type; | |
9f41c731 | 4054 | int pos, offset, regn, regsize, pc_regno; |
00bf0b85 SS |
4055 | unsigned short mlen; |
4056 | char *regs; | |
4057 | ||
4058 | /* An uninitialized reg size says we're not going to be | |
4059 | successful at getting register blocks. */ | |
4060 | if (!trace_regblock_size) | |
4061 | return; | |
4062 | ||
e6e4e701 PA |
4063 | set_tfile_traceframe (); |
4064 | ||
00bf0b85 SS |
4065 | regs = alloca (trace_regblock_size); |
4066 | ||
9f41c731 | 4067 | if (traceframe_find_block_type ('R', 0) >= 0) |
00bf0b85 | 4068 | { |
9f41c731 | 4069 | tfile_read (regs, trace_regblock_size); |
98e03262 | 4070 | |
9f41c731 PA |
4071 | /* Assume the block is laid out in GDB register number order, |
4072 | each register with the size that it has in GDB. */ | |
4073 | offset = 0; | |
4074 | for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++) | |
00bf0b85 | 4075 | { |
9f41c731 PA |
4076 | regsize = register_size (gdbarch, regn); |
4077 | /* Make sure we stay within block bounds. */ | |
4078 | if (offset + regsize >= trace_regblock_size) | |
4079 | break; | |
4080 | if (regcache_register_status (regcache, regn) == REG_UNKNOWN) | |
00bf0b85 | 4081 | { |
9f41c731 | 4082 | if (regno == regn) |
00bf0b85 | 4083 | { |
9f41c731 PA |
4084 | regcache_raw_supply (regcache, regno, regs + offset); |
4085 | break; | |
4086 | } | |
4087 | else if (regno == -1) | |
4088 | { | |
4089 | regcache_raw_supply (regcache, regn, regs + offset); | |
00bf0b85 | 4090 | } |
00bf0b85 | 4091 | } |
9f41c731 | 4092 | offset += regsize; |
00bf0b85 | 4093 | } |
9f41c731 | 4094 | return; |
00bf0b85 | 4095 | } |
af54718e | 4096 | |
9f41c731 PA |
4097 | /* We get here if no register data has been found. Mark registers |
4098 | as unavailable. */ | |
af54718e SS |
4099 | for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++) |
4100 | regcache_raw_supply (regcache, regn, NULL); | |
4101 | ||
4102 | /* We can often usefully guess that the PC is going to be the same | |
4103 | as the address of the tracepoint. */ | |
4104 | pc_regno = gdbarch_pc_regnum (gdbarch); | |
4105 | if (pc_regno >= 0 && (regno == -1 || regno == pc_regno)) | |
4106 | { | |
d9b3f62e | 4107 | struct tracepoint *tp = get_tracepoint (tracepoint_number); |
af54718e | 4108 | |
d9b3f62e | 4109 | if (tp && tp->base.loc) |
af54718e SS |
4110 | { |
4111 | /* But don't try to guess if tracepoint is multi-location... */ | |
d9b3f62e | 4112 | if (tp->base.loc->next) |
af54718e | 4113 | { |
a73c6dcd MS |
4114 | warning (_("Tracepoint %d has multiple " |
4115 | "locations, cannot infer $pc"), | |
d9b3f62e | 4116 | tp->base.number); |
af54718e SS |
4117 | return; |
4118 | } | |
4119 | /* ... or does while-stepping. */ | |
4120 | if (tp->step_count > 0) | |
4121 | { | |
a73c6dcd MS |
4122 | warning (_("Tracepoint %d does while-stepping, " |
4123 | "cannot infer $pc"), | |
d9b3f62e | 4124 | tp->base.number); |
af54718e SS |
4125 | return; |
4126 | } | |
4127 | ||
4128 | store_unsigned_integer (regs, register_size (gdbarch, pc_regno), | |
4129 | gdbarch_byte_order (gdbarch), | |
d9b3f62e | 4130 | tp->base.loc->address); |
af54718e SS |
4131 | regcache_raw_supply (regcache, pc_regno, regs); |
4132 | } | |
4133 | } | |
00bf0b85 SS |
4134 | } |
4135 | ||
4136 | static LONGEST | |
4137 | tfile_xfer_partial (struct target_ops *ops, enum target_object object, | |
4138 | const char *annex, gdb_byte *readbuf, | |
4139 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
4140 | { | |
00bf0b85 SS |
4141 | /* We're only doing regular memory for now. */ |
4142 | if (object != TARGET_OBJECT_MEMORY) | |
4143 | return -1; | |
4144 | ||
4145 | if (readbuf == NULL) | |
a73c6dcd | 4146 | error (_("tfile_xfer_partial: trace file is read-only")); |
00bf0b85 | 4147 | |
e6e4e701 PA |
4148 | set_tfile_traceframe (); |
4149 | ||
4150 | if (traceframe_number != -1) | |
00bf0b85 | 4151 | { |
ffd5ec24 | 4152 | int pos = 0; |
9f41c731 | 4153 | |
ffd5ec24 PA |
4154 | /* Iterate through the traceframe's blocks, looking for |
4155 | memory. */ | |
4156 | while ((pos = traceframe_find_block_type ('M', pos)) >= 0) | |
00bf0b85 | 4157 | { |
ffd5ec24 PA |
4158 | ULONGEST maddr, amt; |
4159 | unsigned short mlen; | |
4160 | enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch); | |
fce3c1f0 | 4161 | |
ffd5ec24 PA |
4162 | tfile_read ((gdb_byte *) &maddr, 8); |
4163 | maddr = extract_unsigned_integer ((gdb_byte *) &maddr, 8, | |
4164 | byte_order); | |
4165 | tfile_read ((gdb_byte *) &mlen, 2); | |
4166 | mlen = (unsigned short) | |
4167 | extract_unsigned_integer ((gdb_byte *) &mlen, 2, byte_order); | |
4168 | ||
4169 | /* If the block includes the first part of the desired | |
4170 | range, return as much it has; GDB will re-request the | |
4171 | remainder, which might be in a different block of this | |
4172 | trace frame. */ | |
4173 | if (maddr <= offset && offset < (maddr + mlen)) | |
4174 | { | |
4175 | amt = (maddr + mlen) - offset; | |
4176 | if (amt > len) | |
4177 | amt = len; | |
4178 | ||
4179 | tfile_read (readbuf, amt); | |
4180 | return amt; | |
4181 | } | |
9f41c731 | 4182 | |
ffd5ec24 PA |
4183 | /* Skip over this block. */ |
4184 | pos += (8 + 2 + mlen); | |
4185 | } | |
00bf0b85 | 4186 | } |
fce3c1f0 SS |
4187 | |
4188 | /* It's unduly pedantic to refuse to look at the executable for | |
4189 | read-only pieces; so do the equivalent of readonly regions aka | |
4190 | QTro packet. */ | |
c378eb4e | 4191 | /* FIXME account for relocation at some point. */ |
fce3c1f0 SS |
4192 | if (exec_bfd) |
4193 | { | |
4194 | asection *s; | |
4195 | bfd_size_type size; | |
2209c807 | 4196 | bfd_vma vma; |
fce3c1f0 SS |
4197 | |
4198 | for (s = exec_bfd->sections; s; s = s->next) | |
4199 | { | |
9f41c731 PA |
4200 | if ((s->flags & SEC_LOAD) == 0 |
4201 | || (s->flags & SEC_READONLY) == 0) | |
fce3c1f0 SS |
4202 | continue; |
4203 | ||
2209c807 | 4204 | vma = s->vma; |
fce3c1f0 | 4205 | size = bfd_get_section_size (s); |
2209c807 | 4206 | if (vma <= offset && offset < (vma + size)) |
fce3c1f0 | 4207 | { |
9f41c731 PA |
4208 | ULONGEST amt; |
4209 | ||
2209c807 | 4210 | amt = (vma + size) - offset; |
fce3c1f0 SS |
4211 | if (amt > len) |
4212 | amt = len; | |
4213 | ||
4214 | amt = bfd_get_section_contents (exec_bfd, s, | |
2209c807 | 4215 | readbuf, offset - vma, amt); |
fce3c1f0 SS |
4216 | return amt; |
4217 | } | |
4218 | } | |
4219 | } | |
4220 | ||
00bf0b85 SS |
4221 | /* Indicate failure to find the requested memory block. */ |
4222 | return -1; | |
4223 | } | |
4224 | ||
4225 | /* Iterate through the blocks of a trace frame, looking for a 'V' | |
4226 | block with a matching tsv number. */ | |
4227 | ||
4228 | static int | |
4229 | tfile_get_trace_state_variable_value (int tsvnum, LONGEST *val) | |
4230 | { | |
9f41c731 | 4231 | int pos; |
00bf0b85 | 4232 | |
e6e4e701 PA |
4233 | set_tfile_traceframe (); |
4234 | ||
00bf0b85 | 4235 | pos = 0; |
9f41c731 | 4236 | while ((pos = traceframe_find_block_type ('V', pos)) >= 0) |
00bf0b85 | 4237 | { |
9f41c731 PA |
4238 | int vnum; |
4239 | ||
4240 | tfile_read ((gdb_byte *) &vnum, 4); | |
4241 | vnum = (int) extract_signed_integer ((gdb_byte *) &vnum, 4, | |
8991e9fa | 4242 | gdbarch_byte_order |
9f41c731 PA |
4243 | (target_gdbarch)); |
4244 | if (tsvnum == vnum) | |
4245 | { | |
4246 | tfile_read ((gdb_byte *) val, 8); | |
4247 | *val = extract_signed_integer ((gdb_byte *) val, 8, | |
4248 | gdbarch_byte_order | |
4249 | (target_gdbarch)); | |
4250 | return 1; | |
00bf0b85 | 4251 | } |
9f41c731 | 4252 | pos += (4 + 8); |
00bf0b85 | 4253 | } |
9f41c731 | 4254 | |
00bf0b85 SS |
4255 | /* Didn't find anything. */ |
4256 | return 0; | |
4257 | } | |
4258 | ||
fce3c1f0 SS |
4259 | static int |
4260 | tfile_has_all_memory (struct target_ops *ops) | |
4261 | { | |
4262 | return 1; | |
4263 | } | |
4264 | ||
00bf0b85 SS |
4265 | static int |
4266 | tfile_has_memory (struct target_ops *ops) | |
4267 | { | |
4268 | return 1; | |
4269 | } | |
4270 | ||
4271 | static int | |
4272 | tfile_has_stack (struct target_ops *ops) | |
4273 | { | |
ffd5ec24 | 4274 | return traceframe_number != -1; |
00bf0b85 SS |
4275 | } |
4276 | ||
4277 | static int | |
4278 | tfile_has_registers (struct target_ops *ops) | |
4279 | { | |
ffd5ec24 | 4280 | return traceframe_number != -1; |
00bf0b85 SS |
4281 | } |
4282 | ||
e93a69ed PA |
4283 | static int |
4284 | tfile_thread_alive (struct target_ops *ops, ptid_t ptid) | |
4285 | { | |
4286 | return 1; | |
4287 | } | |
4288 | ||
b3b9301e PA |
4289 | /* Callback for traceframe_walk_blocks. Builds a traceframe_info |
4290 | object for the tfile target's current traceframe. */ | |
4291 | ||
4292 | static int | |
4293 | build_traceframe_info (char blocktype, void *data) | |
4294 | { | |
4295 | struct traceframe_info *info = data; | |
4296 | ||
4297 | switch (blocktype) | |
4298 | { | |
4299 | case 'M': | |
4300 | { | |
4301 | struct mem_range *r; | |
4302 | ULONGEST maddr; | |
4303 | unsigned short mlen; | |
4304 | ||
4305 | tfile_read ((gdb_byte *) &maddr, 8); | |
4306 | tfile_read ((gdb_byte *) &mlen, 2); | |
4307 | ||
4308 | r = VEC_safe_push (mem_range_s, info->memory, NULL); | |
4309 | ||
4310 | r->start = maddr; | |
4311 | r->length = mlen; | |
4312 | break; | |
4313 | } | |
4314 | case 'V': | |
4315 | case 'R': | |
4316 | case 'S': | |
4317 | { | |
4318 | break; | |
4319 | } | |
4320 | default: | |
4321 | warning (_("Unhandled trace block type (%d) '%c ' " | |
4322 | "while building trace frame info."), | |
4323 | blocktype, blocktype); | |
4324 | break; | |
4325 | } | |
4326 | ||
4327 | return 0; | |
4328 | } | |
4329 | ||
4330 | static struct traceframe_info * | |
4331 | tfile_traceframe_info (void) | |
4332 | { | |
4333 | struct traceframe_info *info = XCNEW (struct traceframe_info); | |
4334 | ||
4335 | traceframe_walk_blocks (build_traceframe_info, 0, info); | |
4336 | return info; | |
4337 | } | |
4338 | ||
00bf0b85 SS |
4339 | static void |
4340 | init_tfile_ops (void) | |
4341 | { | |
4342 | tfile_ops.to_shortname = "tfile"; | |
4343 | tfile_ops.to_longname = "Local trace dump file"; | |
3e43a32a MS |
4344 | tfile_ops.to_doc |
4345 | = "Use a trace file as a target. Specify the filename of the trace file."; | |
00bf0b85 SS |
4346 | tfile_ops.to_open = tfile_open; |
4347 | tfile_ops.to_close = tfile_close; | |
4348 | tfile_ops.to_fetch_registers = tfile_fetch_registers; | |
4349 | tfile_ops.to_xfer_partial = tfile_xfer_partial; | |
4350 | tfile_ops.to_files_info = tfile_files_info; | |
4351 | tfile_ops.to_get_trace_status = tfile_get_trace_status; | |
4352 | tfile_ops.to_trace_find = tfile_trace_find; | |
3e43a32a MS |
4353 | tfile_ops.to_get_trace_state_variable_value |
4354 | = tfile_get_trace_state_variable_value; | |
00bf0b85 | 4355 | tfile_ops.to_stratum = process_stratum; |
fce3c1f0 | 4356 | tfile_ops.to_has_all_memory = tfile_has_all_memory; |
00bf0b85 SS |
4357 | tfile_ops.to_has_memory = tfile_has_memory; |
4358 | tfile_ops.to_has_stack = tfile_has_stack; | |
4359 | tfile_ops.to_has_registers = tfile_has_registers; | |
b3b9301e | 4360 | tfile_ops.to_traceframe_info = tfile_traceframe_info; |
e93a69ed | 4361 | tfile_ops.to_thread_alive = tfile_thread_alive; |
00bf0b85 SS |
4362 | tfile_ops.to_magic = OPS_MAGIC; |
4363 | } | |
4364 | ||
0fb4aa4b PA |
4365 | /* Given a line of text defining a static tracepoint marker, parse it |
4366 | into a "static tracepoint marker" object. Throws an error is | |
4367 | parsing fails. If PP is non-null, it points to one past the end of | |
4368 | the parsed marker definition. */ | |
4369 | ||
4370 | void | |
4371 | parse_static_tracepoint_marker_definition (char *line, char **pp, | |
4372 | struct static_tracepoint_marker *marker) | |
4373 | { | |
4374 | char *p, *endp; | |
4375 | ULONGEST addr; | |
4376 | int end; | |
4377 | ||
4378 | p = line; | |
4379 | p = unpack_varlen_hex (p, &addr); | |
4380 | p++; /* skip a colon */ | |
4381 | ||
4382 | marker->gdbarch = target_gdbarch; | |
4383 | marker->address = (CORE_ADDR) addr; | |
4384 | ||
4385 | endp = strchr (p, ':'); | |
4386 | if (endp == NULL) | |
74232302 | 4387 | error (_("bad marker definition: %s"), line); |
0fb4aa4b PA |
4388 | |
4389 | marker->str_id = xmalloc (endp - p + 1); | |
4390 | end = hex2bin (p, (gdb_byte *) marker->str_id, (endp - p + 1) / 2); | |
4391 | marker->str_id[end] = '\0'; | |
4392 | ||
4393 | p += 2 * end; | |
4394 | p++; /* skip a colon */ | |
4395 | ||
4396 | marker->extra = xmalloc (strlen (p) + 1); | |
4397 | end = hex2bin (p, (gdb_byte *) marker->extra, strlen (p) / 2); | |
4398 | marker->extra[end] = '\0'; | |
4399 | ||
4400 | if (pp) | |
4401 | *pp = p; | |
4402 | } | |
4403 | ||
4404 | /* Release a static tracepoint marker's contents. Note that the | |
4405 | object itself isn't released here. There objects are usually on | |
4406 | the stack. */ | |
4407 | ||
4408 | void | |
4409 | release_static_tracepoint_marker (struct static_tracepoint_marker *marker) | |
4410 | { | |
4411 | xfree (marker->str_id); | |
4412 | marker->str_id = NULL; | |
4413 | } | |
4414 | ||
4415 | /* Print MARKER to gdb_stdout. */ | |
4416 | ||
4417 | static void | |
4418 | print_one_static_tracepoint_marker (int count, | |
4419 | struct static_tracepoint_marker *marker) | |
4420 | { | |
4421 | struct command_line *l; | |
4422 | struct symbol *sym; | |
4423 | ||
4424 | char wrap_indent[80]; | |
4425 | char extra_field_indent[80]; | |
79a45e25 | 4426 | struct ui_out *uiout = current_uiout; |
0fb4aa4b PA |
4427 | struct ui_stream *stb = ui_out_stream_new (uiout); |
4428 | struct cleanup *old_chain = make_cleanup_ui_out_stream_delete (stb); | |
4429 | struct cleanup *bkpt_chain; | |
4430 | VEC(breakpoint_p) *tracepoints; | |
4431 | ||
4432 | struct symtab_and_line sal; | |
4433 | ||
4434 | init_sal (&sal); | |
4435 | ||
4436 | sal.pc = marker->address; | |
4437 | ||
4438 | tracepoints = static_tracepoints_here (marker->address); | |
4439 | ||
4440 | bkpt_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "marker"); | |
4441 | ||
4442 | /* A counter field to help readability. This is not a stable | |
4443 | identifier! */ | |
4444 | ui_out_field_int (uiout, "count", count); | |
4445 | ||
4446 | ui_out_field_string (uiout, "marker-id", marker->str_id); | |
4447 | ||
4448 | ui_out_field_fmt (uiout, "enabled", "%c", | |
4449 | !VEC_empty (breakpoint_p, tracepoints) ? 'y' : 'n'); | |
4450 | ui_out_spaces (uiout, 2); | |
4451 | ||
4452 | strcpy (wrap_indent, " "); | |
4453 | ||
4454 | if (gdbarch_addr_bit (marker->gdbarch) <= 32) | |
4455 | strcat (wrap_indent, " "); | |
4456 | else | |
4457 | strcat (wrap_indent, " "); | |
4458 | ||
4459 | strcpy (extra_field_indent, " "); | |
4460 | ||
4461 | ui_out_field_core_addr (uiout, "addr", marker->gdbarch, marker->address); | |
4462 | ||
4463 | sal = find_pc_line (marker->address, 0); | |
4464 | sym = find_pc_sect_function (marker->address, NULL); | |
4465 | if (sym) | |
4466 | { | |
4467 | ui_out_text (uiout, "in "); | |
4468 | ui_out_field_string (uiout, "func", | |
4469 | SYMBOL_PRINT_NAME (sym)); | |
4470 | ui_out_wrap_hint (uiout, wrap_indent); | |
4471 | ui_out_text (uiout, " at "); | |
4472 | } | |
4473 | else | |
4474 | ui_out_field_skip (uiout, "func"); | |
4475 | ||
4476 | if (sal.symtab != NULL) | |
4477 | { | |
4478 | ui_out_field_string (uiout, "file", sal.symtab->filename); | |
4479 | ui_out_text (uiout, ":"); | |
4480 | ||
4481 | if (ui_out_is_mi_like_p (uiout)) | |
4482 | { | |
4483 | char *fullname = symtab_to_fullname (sal.symtab); | |
4484 | ||
4485 | if (fullname) | |
4486 | ui_out_field_string (uiout, "fullname", fullname); | |
4487 | } | |
4488 | else | |
4489 | ui_out_field_skip (uiout, "fullname"); | |
4490 | ||
4491 | ui_out_field_int (uiout, "line", sal.line); | |
4492 | } | |
4493 | else | |
4494 | { | |
4495 | ui_out_field_skip (uiout, "fullname"); | |
4496 | ui_out_field_skip (uiout, "line"); | |
4497 | } | |
4498 | ||
4499 | ui_out_text (uiout, "\n"); | |
4500 | ui_out_text (uiout, extra_field_indent); | |
4501 | ui_out_text (uiout, _("Data: \"")); | |
4502 | ui_out_field_string (uiout, "extra-data", marker->extra); | |
4503 | ui_out_text (uiout, "\"\n"); | |
4504 | ||
4505 | if (!VEC_empty (breakpoint_p, tracepoints)) | |
4506 | { | |
4507 | struct cleanup *cleanup_chain; | |
4508 | int ix; | |
4509 | struct breakpoint *b; | |
4510 | ||
4511 | cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, | |
4512 | "tracepoints-at"); | |
4513 | ||
4514 | ui_out_text (uiout, extra_field_indent); | |
4515 | ui_out_text (uiout, _("Probed by static tracepoints: ")); | |
4516 | for (ix = 0; VEC_iterate(breakpoint_p, tracepoints, ix, b); ix++) | |
4517 | { | |
4518 | if (ix > 0) | |
4519 | ui_out_text (uiout, ", "); | |
4520 | ui_out_text (uiout, "#"); | |
4521 | ui_out_field_int (uiout, "tracepoint-id", b->number); | |
4522 | } | |
4523 | ||
4524 | do_cleanups (cleanup_chain); | |
4525 | ||
4526 | if (ui_out_is_mi_like_p (uiout)) | |
4527 | ui_out_field_int (uiout, "number-of-tracepoints", | |
4528 | VEC_length(breakpoint_p, tracepoints)); | |
4529 | else | |
4530 | ui_out_text (uiout, "\n"); | |
4531 | } | |
4532 | VEC_free (breakpoint_p, tracepoints); | |
4533 | ||
4534 | do_cleanups (bkpt_chain); | |
4535 | do_cleanups (old_chain); | |
4536 | } | |
4537 | ||
4538 | static void | |
4539 | info_static_tracepoint_markers_command (char *arg, int from_tty) | |
4540 | { | |
4541 | VEC(static_tracepoint_marker_p) *markers; | |
4542 | struct cleanup *old_chain; | |
4543 | struct static_tracepoint_marker *marker; | |
79a45e25 | 4544 | struct ui_out *uiout = current_uiout; |
0fb4aa4b PA |
4545 | int i; |
4546 | ||
4547 | old_chain | |
4548 | = make_cleanup_ui_out_table_begin_end (uiout, 5, -1, | |
4549 | "StaticTracepointMarkersTable"); | |
4550 | ||
4551 | ui_out_table_header (uiout, 7, ui_left, "counter", "Cnt"); | |
4552 | ||
4553 | ui_out_table_header (uiout, 40, ui_left, "marker-id", "ID"); | |
4554 | ||
4555 | ui_out_table_header (uiout, 3, ui_left, "enabled", "Enb"); | |
4556 | if (gdbarch_addr_bit (target_gdbarch) <= 32) | |
4557 | ui_out_table_header (uiout, 10, ui_left, "addr", "Address"); | |
4558 | else | |
4559 | ui_out_table_header (uiout, 18, ui_left, "addr", "Address"); | |
4560 | ui_out_table_header (uiout, 40, ui_noalign, "what", "What"); | |
4561 | ||
4562 | ui_out_table_body (uiout); | |
4563 | ||
4564 | markers = target_static_tracepoint_markers_by_strid (NULL); | |
4565 | make_cleanup (VEC_cleanup (static_tracepoint_marker_p), &markers); | |
4566 | ||
4567 | for (i = 0; | |
4568 | VEC_iterate (static_tracepoint_marker_p, | |
4569 | markers, i, marker); | |
4570 | i++) | |
4571 | { | |
4572 | print_one_static_tracepoint_marker (i + 1, marker); | |
4573 | release_static_tracepoint_marker (marker); | |
4574 | } | |
4575 | ||
4576 | do_cleanups (old_chain); | |
4577 | } | |
4578 | ||
4579 | /* The $_sdata convenience variable is a bit special. We don't know | |
4580 | for sure type of the value until we actually have a chance to fetch | |
4581 | the data --- the size of the object depends on what has been | |
4582 | collected. We solve this by making $_sdata be an internalvar that | |
4583 | creates a new value on access. */ | |
4584 | ||
4585 | /* Return a new value with the correct type for the sdata object of | |
4586 | the current trace frame. Return a void value if there's no object | |
4587 | available. */ | |
4588 | ||
4589 | static struct value * | |
4590 | sdata_make_value (struct gdbarch *gdbarch, struct internalvar *var) | |
4591 | { | |
4592 | LONGEST size; | |
4593 | gdb_byte *buf; | |
4594 | ||
4595 | /* We need to read the whole object before we know its size. */ | |
4596 | size = target_read_alloc (¤t_target, | |
4597 | TARGET_OBJECT_STATIC_TRACE_DATA, | |
4598 | NULL, &buf); | |
4599 | if (size >= 0) | |
4600 | { | |
4601 | struct value *v; | |
4602 | struct type *type; | |
4603 | ||
4604 | type = init_vector_type (builtin_type (gdbarch)->builtin_true_char, | |
4605 | size); | |
4606 | v = allocate_value (type); | |
4607 | memcpy (value_contents_raw (v), buf, size); | |
4608 | xfree (buf); | |
4609 | return v; | |
4610 | } | |
4611 | else | |
4612 | return allocate_value (builtin_type (gdbarch)->builtin_void); | |
4613 | } | |
4614 | ||
b3b9301e PA |
4615 | #if !defined(HAVE_LIBEXPAT) |
4616 | ||
4617 | struct traceframe_info * | |
4618 | parse_traceframe_info (const char *tframe_info) | |
4619 | { | |
4620 | static int have_warned; | |
4621 | ||
4622 | if (!have_warned) | |
4623 | { | |
4624 | have_warned = 1; | |
4625 | warning (_("Can not parse XML trace frame info; XML support " | |
4626 | "was disabled at compile time")); | |
4627 | } | |
4628 | ||
4629 | return NULL; | |
4630 | } | |
4631 | ||
4632 | #else /* HAVE_LIBEXPAT */ | |
4633 | ||
4634 | #include "xml-support.h" | |
4635 | ||
4636 | /* Handle the start of a <memory> element. */ | |
4637 | ||
4638 | static void | |
4639 | traceframe_info_start_memory (struct gdb_xml_parser *parser, | |
4640 | const struct gdb_xml_element *element, | |
4641 | void *user_data, VEC(gdb_xml_value_s) *attributes) | |
4642 | { | |
4643 | struct traceframe_info *info = user_data; | |
4644 | struct mem_range *r = VEC_safe_push (mem_range_s, info->memory, NULL); | |
4645 | ULONGEST *start_p, *length_p; | |
4646 | ||
4647 | start_p = xml_find_attribute (attributes, "start")->value; | |
4648 | length_p = xml_find_attribute (attributes, "length")->value; | |
4649 | ||
4650 | r->start = *start_p; | |
4651 | r->length = *length_p; | |
4652 | } | |
4653 | ||
4654 | /* Discard the constructed trace frame info (if an error occurs). */ | |
4655 | ||
4656 | static void | |
4657 | free_result (void *p) | |
4658 | { | |
4659 | struct traceframe_info *result = p; | |
4660 | ||
4661 | free_traceframe_info (result); | |
4662 | } | |
4663 | ||
4664 | /* The allowed elements and attributes for an XML memory map. */ | |
4665 | ||
4666 | static const struct gdb_xml_attribute memory_attributes[] = { | |
4667 | { "start", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL }, | |
4668 | { "length", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL }, | |
4669 | { NULL, GDB_XML_AF_NONE, NULL, NULL } | |
4670 | }; | |
4671 | ||
4672 | static const struct gdb_xml_element traceframe_info_children[] = { | |
4673 | { "memory", memory_attributes, NULL, | |
4674 | GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL, | |
4675 | traceframe_info_start_memory, NULL }, | |
4676 | { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL } | |
4677 | }; | |
4678 | ||
4679 | static const struct gdb_xml_element traceframe_info_elements[] = { | |
4680 | { "traceframe-info", NULL, traceframe_info_children, GDB_XML_EF_NONE, | |
4681 | NULL, NULL }, | |
4682 | { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL } | |
4683 | }; | |
4684 | ||
4685 | /* Parse a traceframe-info XML document. */ | |
4686 | ||
4687 | struct traceframe_info * | |
4688 | parse_traceframe_info (const char *tframe_info) | |
4689 | { | |
4690 | struct traceframe_info *result; | |
4691 | struct cleanup *back_to; | |
4692 | ||
4693 | result = XCNEW (struct traceframe_info); | |
4694 | back_to = make_cleanup (free_result, result); | |
4695 | ||
4696 | if (gdb_xml_parse_quick (_("trace frame info"), | |
4697 | "traceframe-info.dtd", traceframe_info_elements, | |
4698 | tframe_info, result) == 0) | |
4699 | { | |
4700 | /* Parsed successfully, keep the result. */ | |
4701 | discard_cleanups (back_to); | |
4702 | ||
4703 | return result; | |
4704 | } | |
4705 | ||
4706 | do_cleanups (back_to); | |
4707 | return NULL; | |
4708 | } | |
4709 | ||
4710 | #endif /* HAVE_LIBEXPAT */ | |
4711 | ||
4712 | /* Returns the traceframe_info object for the current traceframe. | |
4713 | This is where we avoid re-fetching the object from the target if we | |
4714 | already have it cached. */ | |
4715 | ||
4716 | struct traceframe_info * | |
4717 | get_traceframe_info (void) | |
4718 | { | |
4719 | if (traceframe_info == NULL) | |
4720 | traceframe_info = target_traceframe_info (); | |
4721 | ||
4722 | return traceframe_info; | |
4723 | } | |
4724 | ||
c0f61f9c PA |
4725 | /* If the target supports the query, return in RESULT the set of |
4726 | collected memory in the current traceframe, found within the LEN | |
4727 | bytes range starting at MEMADDR. Returns true if the target | |
4728 | supports the query, otherwise returns false, and RESULT is left | |
4729 | undefined. */ | |
2a7498d8 PA |
4730 | |
4731 | int | |
4732 | traceframe_available_memory (VEC(mem_range_s) **result, | |
4733 | CORE_ADDR memaddr, ULONGEST len) | |
4734 | { | |
4735 | struct traceframe_info *info = get_traceframe_info (); | |
4736 | ||
4737 | if (info != NULL) | |
4738 | { | |
4739 | struct mem_range *r; | |
4740 | int i; | |
4741 | ||
4742 | *result = NULL; | |
4743 | ||
4744 | for (i = 0; VEC_iterate (mem_range_s, info->memory, i, r); i++) | |
4745 | if (mem_ranges_overlap (r->start, r->length, memaddr, len)) | |
4746 | { | |
4747 | ULONGEST lo1, hi1, lo2, hi2; | |
4748 | struct mem_range *nr; | |
4749 | ||
4750 | lo1 = memaddr; | |
4751 | hi1 = memaddr + len; | |
4752 | ||
4753 | lo2 = r->start; | |
4754 | hi2 = r->start + r->length; | |
4755 | ||
4756 | nr = VEC_safe_push (mem_range_s, *result, NULL); | |
4757 | ||
4758 | nr->start = max (lo1, lo2); | |
4759 | nr->length = min (hi1, hi2) - nr->start; | |
4760 | } | |
4761 | ||
4762 | normalize_mem_ranges (*result); | |
4763 | return 1; | |
4764 | } | |
4765 | ||
4766 | return 0; | |
4767 | } | |
4768 | ||
c906108c SS |
4769 | /* module initialization */ |
4770 | void | |
fba45db2 | 4771 | _initialize_tracepoint (void) |
c906108c | 4772 | { |
fa58ee11 EZ |
4773 | struct cmd_list_element *c; |
4774 | ||
0fb4aa4b PA |
4775 | /* Explicitly create without lookup, since that tries to create a |
4776 | value with a void typed value, and when we get here, gdbarch | |
4777 | isn't initialized yet. At this point, we're quite sure there | |
4778 | isn't another convenience variable of the same name. */ | |
4779 | create_internalvar_type_lazy ("_sdata", sdata_make_value); | |
4780 | ||
c906108c SS |
4781 | traceframe_number = -1; |
4782 | tracepoint_number = -1; | |
4783 | ||
c906108c SS |
4784 | if (tracepoint_list.list == NULL) |
4785 | { | |
4786 | tracepoint_list.listsize = 128; | |
c5aa993b | 4787 | tracepoint_list.list = xmalloc |
c906108c SS |
4788 | (tracepoint_list.listsize * sizeof (struct memrange)); |
4789 | } | |
4790 | if (tracepoint_list.aexpr_list == NULL) | |
4791 | { | |
4792 | tracepoint_list.aexpr_listsize = 128; | |
4793 | tracepoint_list.aexpr_list = xmalloc | |
4794 | (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
4795 | } | |
4796 | ||
4797 | if (stepping_list.list == NULL) | |
4798 | { | |
4799 | stepping_list.listsize = 128; | |
c5aa993b | 4800 | stepping_list.list = xmalloc |
c906108c SS |
4801 | (stepping_list.listsize * sizeof (struct memrange)); |
4802 | } | |
4803 | ||
4804 | if (stepping_list.aexpr_list == NULL) | |
4805 | { | |
4806 | stepping_list.aexpr_listsize = 128; | |
4807 | stepping_list.aexpr_list = xmalloc | |
4808 | (stepping_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
4809 | } | |
4810 | ||
c5aa993b | 4811 | add_info ("scope", scope_info, |
1bedd215 | 4812 | _("List the variables local to a scope")); |
c906108c | 4813 | |
e00d1dc8 | 4814 | add_cmd ("tracepoints", class_trace, NULL, |
1a966eab | 4815 | _("Tracing of program execution without stopping the program."), |
c906108c SS |
4816 | &cmdlist); |
4817 | ||
c5aa993b | 4818 | add_com ("tdump", class_trace, trace_dump_command, |
1bedd215 | 4819 | _("Print everything collected at the current tracepoint.")); |
c906108c | 4820 | |
00bf0b85 SS |
4821 | add_com ("tsave", class_trace, trace_save_command, _("\ |
4822 | Save the trace data to a file.\n\ | |
4823 | Use the '-r' option to direct the target to save directly to the file,\n\ | |
4824 | using its own filesystem.")); | |
4825 | ||
f61e138d SS |
4826 | c = add_com ("tvariable", class_trace, trace_variable_command,_("\ |
4827 | Define a trace state variable.\n\ | |
4828 | Argument is a $-prefixed name, optionally followed\n\ | |
4829 | by '=' and an expression that sets the initial value\n\ | |
4830 | at the start of tracing.")); | |
4831 | set_cmd_completer (c, expression_completer); | |
4832 | ||
4833 | add_cmd ("tvariable", class_trace, delete_trace_variable_command, _("\ | |
4834 | Delete one or more trace state variables.\n\ | |
4835 | Arguments are the names of the variables to delete.\n\ | |
4836 | If no arguments are supplied, delete all variables."), &deletelist); | |
c378eb4e | 4837 | /* FIXME add a trace variable completer. */ |
f61e138d SS |
4838 | |
4839 | add_info ("tvariables", tvariables_info, _("\ | |
4840 | Status of trace state variables and their values.\n\ | |
0fb4aa4b PA |
4841 | ")); |
4842 | ||
4843 | add_info ("static-tracepoint-markers", | |
4844 | info_static_tracepoint_markers_command, _("\ | |
4845 | List target static tracepoints markers.\n\ | |
f61e138d SS |
4846 | ")); |
4847 | ||
1bedd215 AC |
4848 | add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\ |
4849 | Select a trace frame;\n\ | |
4850 | No argument means forward by one frame; '-' means backward by one frame."), | |
c906108c SS |
4851 | &tfindlist, "tfind ", 1, &cmdlist); |
4852 | ||
1a966eab | 4853 | add_cmd ("outside", class_trace, trace_find_outside_command, _("\ |
081dfbf7 | 4854 | Select a trace frame whose PC is outside the given range (exclusive).\n\ |
1a966eab | 4855 | Usage: tfind outside addr1, addr2"), |
c906108c SS |
4856 | &tfindlist); |
4857 | ||
1a966eab | 4858 | add_cmd ("range", class_trace, trace_find_range_command, _("\ |
081dfbf7 | 4859 | Select a trace frame whose PC is in the given range (inclusive).\n\ |
1a966eab | 4860 | Usage: tfind range addr1,addr2"), |
c906108c SS |
4861 | &tfindlist); |
4862 | ||
1a966eab AC |
4863 | add_cmd ("line", class_trace, trace_find_line_command, _("\ |
4864 | Select a trace frame by source line.\n\ | |
cce7e648 | 4865 | Argument can be a line number (with optional source file),\n\ |
c906108c | 4866 | a function name, or '*' followed by an address.\n\ |
1a966eab | 4867 | Default argument is 'the next source line that was traced'."), |
c906108c SS |
4868 | &tfindlist); |
4869 | ||
1a966eab AC |
4870 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, _("\ |
4871 | Select a trace frame by tracepoint number.\n\ | |
4872 | Default is the tracepoint for the current trace frame."), | |
c906108c SS |
4873 | &tfindlist); |
4874 | ||
1a966eab AC |
4875 | add_cmd ("pc", class_trace, trace_find_pc_command, _("\ |
4876 | Select a trace frame by PC.\n\ | |
4877 | Default is the current PC, or the PC of the current trace frame."), | |
c906108c SS |
4878 | &tfindlist); |
4879 | ||
1a966eab AC |
4880 | add_cmd ("end", class_trace, trace_find_end_command, _("\ |
4881 | Synonym for 'none'.\n\ | |
4882 | De-select any trace frame and resume 'live' debugging."), | |
c906108c SS |
4883 | &tfindlist); |
4884 | ||
4885 | add_cmd ("none", class_trace, trace_find_none_command, | |
1a966eab | 4886 | _("De-select any trace frame and resume 'live' debugging."), |
c906108c SS |
4887 | &tfindlist); |
4888 | ||
4889 | add_cmd ("start", class_trace, trace_find_start_command, | |
1a966eab | 4890 | _("Select the first trace frame in the trace buffer."), |
c906108c SS |
4891 | &tfindlist); |
4892 | ||
c5aa993b | 4893 | add_com ("tstatus", class_trace, trace_status_command, |
1bedd215 | 4894 | _("Display the status of the current trace data collection.")); |
c906108c | 4895 | |
c5aa993b | 4896 | add_com ("tstop", class_trace, trace_stop_command, |
1bedd215 | 4897 | _("Stop trace data collection.")); |
c906108c SS |
4898 | |
4899 | add_com ("tstart", class_trace, trace_start_command, | |
1bedd215 | 4900 | _("Start trace data collection.")); |
c906108c | 4901 | |
1bedd215 AC |
4902 | add_com ("end", class_trace, end_actions_pseudocommand, _("\ |
4903 | Ends a list of commands or actions.\n\ | |
c906108c SS |
4904 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
4905 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
4906 | such a list.\n\n\ | |
1bedd215 | 4907 | Note: the \"end\" command cannot be used at the gdb prompt.")); |
c906108c | 4908 | |
1bedd215 AC |
4909 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, _("\ |
4910 | Specify single-stepping behavior at a tracepoint.\n\ | |
c906108c SS |
4911 | Argument is number of instructions to trace in single-step mode\n\ |
4912 | following the tracepoint. This command is normally followed by\n\ | |
4913 | one or more \"collect\" commands, to specify what to collect\n\ | |
4914 | while single-stepping.\n\n\ | |
1bedd215 | 4915 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 4916 | |
c5aa993b JM |
4917 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
4918 | add_com_alias ("stepping", "while-stepping", class_alias, 0); | |
c906108c | 4919 | |
1bedd215 AC |
4920 | add_com ("collect", class_trace, collect_pseudocommand, _("\ |
4921 | Specify one or more data items to be collected at a tracepoint.\n\ | |
c906108c SS |
4922 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
4923 | collect all data (variables, registers) referenced by that expression.\n\ | |
4924 | Also accepts the following special arguments:\n\ | |
4925 | $regs -- all registers.\n\ | |
4926 | $args -- all function arguments.\n\ | |
4927 | $locals -- all variables local to the block/function scope.\n\ | |
0fb4aa4b | 4928 | $_sdata -- static tracepoint data (ignored for non-static tracepoints).\n\ |
1bedd215 | 4929 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 4930 | |
6da95a67 SS |
4931 | add_com ("teval", class_trace, teval_pseudocommand, _("\ |
4932 | Specify one or more expressions to be evaluated at a tracepoint.\n\ | |
4933 | Accepts a comma-separated list of (one or more) expressions.\n\ | |
4934 | The result of each evaluation will be discarded.\n\ | |
4935 | Note: this command can only be used in a tracepoint \"actions\" list.")); | |
4936 | ||
1bedd215 AC |
4937 | add_com ("actions", class_trace, trace_actions_command, _("\ |
4938 | Specify the actions to be taken at a tracepoint.\n\ | |
cce7e648 PA |
4939 | Tracepoint actions may include collecting of specified data,\n\ |
4940 | single-stepping, or enabling/disabling other tracepoints,\n\ | |
1bedd215 | 4941 | depending on target's capabilities.")); |
c906108c | 4942 | |
236f1d4d SS |
4943 | default_collect = xstrdup (""); |
4944 | add_setshow_string_cmd ("default-collect", class_trace, | |
4945 | &default_collect, _("\ | |
4946 | Set the list of expressions to collect by default"), _("\ | |
4947 | Show the list of expressions to collect by default"), NULL, | |
4948 | NULL, NULL, | |
4949 | &setlist, &showlist); | |
4950 | ||
d5551862 SS |
4951 | add_setshow_boolean_cmd ("disconnected-tracing", no_class, |
4952 | &disconnected_tracing, _("\ | |
4953 | Set whether tracing continues after GDB disconnects."), _("\ | |
4954 | Show whether tracing continues after GDB disconnects."), _("\ | |
4955 | Use this to continue a tracing run even if GDB disconnects\n\ | |
4956 | or detaches from the target. You can reconnect later and look at\n\ | |
4957 | trace data collected in the meantime."), | |
4958 | set_disconnected_tracing, | |
4959 | NULL, | |
4960 | &setlist, | |
4961 | &showlist); | |
00bf0b85 | 4962 | |
4daf5ac0 SS |
4963 | add_setshow_boolean_cmd ("circular-trace-buffer", no_class, |
4964 | &circular_trace_buffer, _("\ | |
4965 | Set target's use of circular trace buffer."), _("\ | |
4966 | Show target's use of circular trace buffer."), _("\ | |
4967 | Use this to make the trace buffer into a circular buffer,\n\ | |
4968 | which will discard traceframes (oldest first) instead of filling\n\ | |
4969 | up and stopping the trace run."), | |
4970 | set_circular_trace_buffer, | |
4971 | NULL, | |
4972 | &setlist, | |
4973 | &showlist); | |
4974 | ||
00bf0b85 SS |
4975 | init_tfile_ops (); |
4976 | ||
4977 | add_target (&tfile_ops); | |
c906108c | 4978 | } |