Commit | Line | Data |
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c906108c | 1 | /* Tracing functionality for remote targets in custom GDB protocol |
9f60d481 | 2 | |
6aba47ca | 3 | Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, |
4c38e0a4 | 4 | 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 11 | (at your option) any later version. |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b | 18 | You should have received a copy of the GNU General Public License |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
20 | |
21 | #include "defs.h" | |
5af949e3 | 22 | #include "arch-utils.h" |
c906108c SS |
23 | #include "symtab.h" |
24 | #include "frame.h" | |
c906108c SS |
25 | #include "gdbtypes.h" |
26 | #include "expression.h" | |
27 | #include "gdbcmd.h" | |
28 | #include "value.h" | |
29 | #include "target.h" | |
30 | #include "language.h" | |
31 | #include "gdb_string.h" | |
104c1213 | 32 | #include "inferior.h" |
1042e4c0 | 33 | #include "breakpoint.h" |
104c1213 | 34 | #include "tracepoint.h" |
c5f0f3d0 | 35 | #include "linespec.h" |
4e052eda | 36 | #include "regcache.h" |
c94fdfd0 | 37 | #include "completer.h" |
fe898f56 | 38 | #include "block.h" |
de4f826b | 39 | #include "dictionary.h" |
383f836e | 40 | #include "observer.h" |
029a67e4 | 41 | #include "user-regs.h" |
79a45b7d | 42 | #include "valprint.h" |
41575630 | 43 | #include "gdbcore.h" |
768a979c | 44 | #include "objfiles.h" |
35b1e5cc | 45 | #include "filenames.h" |
00bf0b85 | 46 | #include "gdbthread.h" |
c906108c SS |
47 | |
48 | #include "ax.h" | |
49 | #include "ax-gdb.h" | |
50 | ||
51 | /* readline include files */ | |
dbda9972 AC |
52 | #include "readline/readline.h" |
53 | #include "readline/history.h" | |
c906108c SS |
54 | |
55 | /* readline defines this. */ | |
56 | #undef savestring | |
57 | ||
58 | #ifdef HAVE_UNISTD_H | |
59 | #include <unistd.h> | |
60 | #endif | |
61 | ||
00bf0b85 SS |
62 | #ifndef O_LARGEFILE |
63 | #define O_LARGEFILE 0 | |
64 | #endif | |
65 | ||
66 | extern int hex2bin (const char *hex, gdb_byte *bin, int count); | |
67 | extern int bin2hex (const gdb_byte *bin, char *hex, int count); | |
68 | ||
d5551862 SS |
69 | extern void stop_tracing (); |
70 | ||
d183932d MS |
71 | /* Maximum length of an agent aexpression. |
72 | This accounts for the fact that packets are limited to 400 bytes | |
c906108c SS |
73 | (which includes everything -- including the checksum), and assumes |
74 | the worst case of maximum length for each of the pieces of a | |
75 | continuation packet. | |
c5aa993b | 76 | |
c906108c SS |
77 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
78 | large. (400 - 31)/2 == 184 */ | |
79 | #define MAX_AGENT_EXPR_LEN 184 | |
80 | ||
98c5b216 TT |
81 | /* A hook used to notify the UI of tracepoint operations. */ |
82 | ||
83 | void (*deprecated_trace_find_hook) (char *arg, int from_tty); | |
84 | void (*deprecated_trace_start_stop_hook) (int start, int from_tty); | |
c906108c | 85 | |
9a4105ab AC |
86 | extern void (*deprecated_readline_begin_hook) (char *, ...); |
87 | extern char *(*deprecated_readline_hook) (char *); | |
88 | extern void (*deprecated_readline_end_hook) (void); | |
c906108c | 89 | |
104c1213 JM |
90 | /* GDB commands implemented in other modules: |
91 | */ | |
92 | ||
a14ed312 | 93 | extern void output_command (char *, int); |
104c1213 | 94 | |
c906108c SS |
95 | /* |
96 | Tracepoint.c: | |
97 | ||
98 | This module defines the following debugger commands: | |
99 | trace : set a tracepoint on a function, line, or address. | |
100 | info trace : list all debugger-defined tracepoints. | |
101 | delete trace : delete one or more tracepoints. | |
102 | enable trace : enable one or more tracepoints. | |
103 | disable trace : disable one or more tracepoints. | |
104 | actions : specify actions to be taken at a tracepoint. | |
105 | passcount : specify a pass count for a tracepoint. | |
106 | tstart : start a trace experiment. | |
107 | tstop : stop a trace experiment. | |
108 | tstatus : query the status of a trace experiment. | |
109 | tfind : find a trace frame in the trace buffer. | |
110 | tdump : print everything collected at the current tracepoint. | |
111 | save-tracepoints : write tracepoint setup into a file. | |
112 | ||
113 | This module defines the following user-visible debugger variables: | |
114 | $trace_frame : sequence number of trace frame currently being debugged. | |
115 | $trace_line : source line of trace frame currently being debugged. | |
116 | $trace_file : source file of trace frame currently being debugged. | |
117 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
c5aa993b | 118 | */ |
c906108c SS |
119 | |
120 | ||
121 | /* ======= Important global variables: ======= */ | |
122 | ||
f61e138d SS |
123 | /* The list of all trace state variables. We don't retain pointers to |
124 | any of these for any reason - API is by name or number only - so it | |
125 | works to have a vector of objects. */ | |
126 | ||
127 | typedef struct trace_state_variable tsv_s; | |
128 | DEF_VEC_O(tsv_s); | |
129 | ||
130 | static VEC(tsv_s) *tvariables; | |
131 | ||
132 | /* The next integer to assign to a variable. */ | |
133 | ||
134 | static int next_tsv_number = 1; | |
135 | ||
c906108c SS |
136 | /* Number of last traceframe collected. */ |
137 | static int traceframe_number; | |
138 | ||
139 | /* Tracepoint for last traceframe collected. */ | |
140 | static int tracepoint_number; | |
141 | ||
142 | /* Symbol for function for last traceframe collected */ | |
143 | static struct symbol *traceframe_fun; | |
144 | ||
145 | /* Symtab and line for last traceframe collected */ | |
146 | static struct symtab_and_line traceframe_sal; | |
147 | ||
148 | /* Tracing command lists */ | |
149 | static struct cmd_list_element *tfindlist; | |
150 | ||
236f1d4d | 151 | /* List of expressions to collect by default at each tracepoint hit. */ |
35b1e5cc | 152 | char *default_collect = ""; |
236f1d4d | 153 | |
d5551862 SS |
154 | static int disconnected_tracing; |
155 | ||
c906108c | 156 | /* ======= Important command functions: ======= */ |
a14ed312 KB |
157 | static void trace_actions_command (char *, int); |
158 | static void trace_start_command (char *, int); | |
159 | static void trace_stop_command (char *, int); | |
160 | static void trace_status_command (char *, int); | |
161 | static void trace_find_command (char *, int); | |
162 | static void trace_find_pc_command (char *, int); | |
163 | static void trace_find_tracepoint_command (char *, int); | |
164 | static void trace_find_line_command (char *, int); | |
165 | static void trace_find_range_command (char *, int); | |
166 | static void trace_find_outside_command (char *, int); | |
a14ed312 | 167 | static void trace_dump_command (char *, int); |
c906108c SS |
168 | |
169 | /* support routines */ | |
c906108c SS |
170 | |
171 | struct collection_list; | |
a14ed312 | 172 | static void add_aexpr (struct collection_list *, struct agent_expr *); |
47b667de | 173 | static char *mem2hex (gdb_byte *, char *, int); |
a14ed312 KB |
174 | static void add_register (struct collection_list *collection, |
175 | unsigned int regno); | |
1042e4c0 | 176 | static struct cleanup *make_cleanup_free_actions (struct breakpoint *t); |
392a587b | 177 | |
d5551862 SS |
178 | extern void send_disconnected_tracing_value (int value); |
179 | ||
00bf0b85 SS |
180 | static void free_uploaded_tps (struct uploaded_tp **utpp); |
181 | static void free_uploaded_tsvs (struct uploaded_tsv **utsvp); | |
182 | ||
183 | ||
a14ed312 | 184 | extern void _initialize_tracepoint (void); |
c906108c | 185 | |
00bf0b85 SS |
186 | static struct trace_status trace_status; |
187 | ||
188 | char *stop_reason_names[] = { | |
189 | "tunknown", | |
190 | "tnotrun", | |
191 | "tstop", | |
192 | "tfull", | |
193 | "tdisconnected", | |
194 | "tpasscount" | |
195 | }; | |
196 | ||
197 | struct trace_status * | |
198 | current_trace_status () | |
199 | { | |
200 | return &trace_status; | |
201 | } | |
202 | ||
c906108c SS |
203 | /* Set traceframe number to NUM. */ |
204 | static void | |
fba45db2 | 205 | set_traceframe_num (int num) |
c906108c SS |
206 | { |
207 | traceframe_number = num; | |
4fa62494 | 208 | set_internalvar_integer (lookup_internalvar ("trace_frame"), num); |
c906108c SS |
209 | } |
210 | ||
211 | /* Set tracepoint number to NUM. */ | |
212 | static void | |
fba45db2 | 213 | set_tracepoint_num (int num) |
c906108c SS |
214 | { |
215 | tracepoint_number = num; | |
4fa62494 | 216 | set_internalvar_integer (lookup_internalvar ("tracepoint"), num); |
c906108c SS |
217 | } |
218 | ||
219 | /* Set externally visible debug variables for querying/printing | |
220 | the traceframe context (line, function, file) */ | |
221 | ||
222 | static void | |
fb14de7b | 223 | set_traceframe_context (struct frame_info *trace_frame) |
c906108c | 224 | { |
fb14de7b UW |
225 | CORE_ADDR trace_pc; |
226 | ||
fb14de7b | 227 | if (trace_frame == NULL) /* Cease debugging any trace buffers. */ |
c906108c SS |
228 | { |
229 | traceframe_fun = 0; | |
230 | traceframe_sal.pc = traceframe_sal.line = 0; | |
231 | traceframe_sal.symtab = NULL; | |
4fa62494 UW |
232 | clear_internalvar (lookup_internalvar ("trace_func")); |
233 | clear_internalvar (lookup_internalvar ("trace_file")); | |
234 | set_internalvar_integer (lookup_internalvar ("trace_line"), -1); | |
c906108c SS |
235 | return; |
236 | } | |
237 | ||
d183932d | 238 | /* Save as globals for internal use. */ |
fb14de7b | 239 | trace_pc = get_frame_pc (trace_frame); |
c906108c SS |
240 | traceframe_sal = find_pc_line (trace_pc, 0); |
241 | traceframe_fun = find_pc_function (trace_pc); | |
242 | ||
d183932d MS |
243 | /* Save linenumber as "$trace_line", a debugger variable visible to |
244 | users. */ | |
4fa62494 UW |
245 | set_internalvar_integer (lookup_internalvar ("trace_line"), |
246 | traceframe_sal.line); | |
c906108c | 247 | |
d183932d MS |
248 | /* Save func name as "$trace_func", a debugger variable visible to |
249 | users. */ | |
4fa62494 UW |
250 | if (traceframe_fun == NULL |
251 | || SYMBOL_LINKAGE_NAME (traceframe_fun) == NULL) | |
252 | clear_internalvar (lookup_internalvar ("trace_func")); | |
c906108c | 253 | else |
78267919 UW |
254 | set_internalvar_string (lookup_internalvar ("trace_func"), |
255 | SYMBOL_LINKAGE_NAME (traceframe_fun)); | |
c906108c | 256 | |
d183932d MS |
257 | /* Save file name as "$trace_file", a debugger variable visible to |
258 | users. */ | |
4fa62494 UW |
259 | if (traceframe_sal.symtab == NULL |
260 | || traceframe_sal.symtab->filename == NULL) | |
261 | clear_internalvar (lookup_internalvar ("trace_file")); | |
c906108c | 262 | else |
78267919 UW |
263 | set_internalvar_string (lookup_internalvar ("trace_file"), |
264 | traceframe_sal.symtab->filename); | |
c906108c SS |
265 | } |
266 | ||
f61e138d SS |
267 | /* Create a new trace state variable with the given name. */ |
268 | ||
269 | struct trace_state_variable * | |
270 | create_trace_state_variable (const char *name) | |
271 | { | |
272 | struct trace_state_variable tsv; | |
273 | ||
274 | memset (&tsv, 0, sizeof (tsv)); | |
275 | tsv.name = name; | |
276 | tsv.number = next_tsv_number++; | |
277 | return VEC_safe_push (tsv_s, tvariables, &tsv); | |
278 | } | |
279 | ||
280 | /* Look for a trace state variable of the given name. */ | |
281 | ||
282 | struct trace_state_variable * | |
283 | find_trace_state_variable (const char *name) | |
284 | { | |
285 | struct trace_state_variable *tsv; | |
286 | int ix; | |
287 | ||
288 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
289 | if (strcmp (name, tsv->name) == 0) | |
290 | return tsv; | |
291 | ||
292 | return NULL; | |
293 | } | |
294 | ||
295 | void | |
296 | delete_trace_state_variable (const char *name) | |
297 | { | |
298 | struct trace_state_variable *tsv; | |
299 | int ix; | |
300 | ||
301 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
302 | if (strcmp (name, tsv->name) == 0) | |
303 | { | |
304 | VEC_unordered_remove (tsv_s, tvariables, ix); | |
305 | return; | |
306 | } | |
307 | ||
308 | warning (_("No trace variable named \"$%s\", not deleting"), name); | |
309 | } | |
310 | ||
311 | /* The 'tvariable' command collects a name and optional expression to | |
312 | evaluate into an initial value. */ | |
313 | ||
314 | void | |
315 | trace_variable_command (char *args, int from_tty) | |
316 | { | |
317 | struct expression *expr; | |
318 | struct cleanup *old_chain; | |
319 | struct internalvar *intvar = NULL; | |
320 | LONGEST initval = 0; | |
321 | struct trace_state_variable *tsv; | |
322 | ||
323 | if (!args || !*args) | |
324 | error_no_arg (_("trace state variable name")); | |
325 | ||
326 | /* All the possible valid arguments are expressions. */ | |
327 | expr = parse_expression (args); | |
328 | old_chain = make_cleanup (free_current_contents, &expr); | |
329 | ||
330 | if (expr->nelts == 0) | |
331 | error (_("No expression?")); | |
332 | ||
333 | /* Only allow two syntaxes; "$name" and "$name=value". */ | |
334 | if (expr->elts[0].opcode == OP_INTERNALVAR) | |
335 | { | |
336 | intvar = expr->elts[1].internalvar; | |
337 | } | |
338 | else if (expr->elts[0].opcode == BINOP_ASSIGN | |
339 | && expr->elts[1].opcode == OP_INTERNALVAR) | |
340 | { | |
341 | intvar = expr->elts[2].internalvar; | |
342 | initval = value_as_long (evaluate_subexpression_type (expr, 4)); | |
343 | } | |
344 | else | |
345 | error (_("Syntax must be $NAME [ = EXPR ]")); | |
346 | ||
347 | if (!intvar) | |
348 | error (_("No name given")); | |
349 | ||
350 | if (strlen (internalvar_name (intvar)) <= 0) | |
351 | error (_("Must supply a non-empty variable name")); | |
352 | ||
353 | /* If the variable already exists, just change its initial value. */ | |
354 | tsv = find_trace_state_variable (internalvar_name (intvar)); | |
355 | if (tsv) | |
356 | { | |
357 | tsv->initial_value = initval; | |
358 | printf_filtered (_("Trace state variable $%s now has initial value %s.\n"), | |
359 | tsv->name, plongest (tsv->initial_value)); | |
360 | return; | |
361 | } | |
362 | ||
363 | /* Create a new variable. */ | |
364 | tsv = create_trace_state_variable (internalvar_name (intvar)); | |
365 | tsv->initial_value = initval; | |
366 | ||
367 | printf_filtered (_("Trace state variable $%s created, with initial value %s.\n"), | |
368 | tsv->name, plongest (tsv->initial_value)); | |
369 | ||
370 | do_cleanups (old_chain); | |
371 | } | |
372 | ||
373 | void | |
374 | delete_trace_variable_command (char *args, int from_tty) | |
375 | { | |
376 | int i, ix; | |
377 | char **argv; | |
378 | struct cleanup *back_to; | |
379 | struct trace_state_variable *tsv; | |
380 | ||
381 | if (args == NULL) | |
382 | { | |
383 | if (query (_("Delete all trace state variables? "))) | |
384 | VEC_free (tsv_s, tvariables); | |
385 | dont_repeat (); | |
386 | return; | |
387 | } | |
388 | ||
389 | argv = gdb_buildargv (args); | |
390 | back_to = make_cleanup_freeargv (argv); | |
391 | ||
392 | for (i = 0; argv[i] != NULL; i++) | |
393 | { | |
394 | if (*argv[i] == '$') | |
395 | delete_trace_state_variable (argv[i] + 1); | |
396 | else | |
397 | warning (_("Name \"%s\" not prefixed with '$', ignoring"), argv[i]); | |
398 | } | |
399 | ||
400 | do_cleanups (back_to); | |
401 | ||
402 | dont_repeat (); | |
403 | } | |
404 | ||
405 | /* List all the trace state variables. */ | |
406 | ||
407 | static void | |
408 | tvariables_info (char *args, int from_tty) | |
409 | { | |
410 | struct trace_state_variable *tsv; | |
411 | int ix; | |
412 | char *reply; | |
413 | ULONGEST tval; | |
414 | ||
f61e138d SS |
415 | if (VEC_length (tsv_s, tvariables) == 0) |
416 | { | |
417 | printf_filtered (_("No trace state variables.\n")); | |
418 | return; | |
419 | } | |
420 | ||
35b1e5cc SS |
421 | /* Try to acquire values from the target. */ |
422 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
423 | tsv->value_known = target_get_trace_state_variable_value (tsv->number, | |
424 | &(tsv->value)); | |
425 | ||
f61e138d SS |
426 | printf_filtered (_("Name\t\t Initial\tCurrent\n")); |
427 | ||
428 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
429 | { | |
430 | printf_filtered ("$%s", tsv->name); | |
431 | print_spaces_filtered (17 - strlen (tsv->name), gdb_stdout); | |
432 | printf_filtered ("%s ", plongest (tsv->initial_value)); | |
433 | print_spaces_filtered (11 - strlen (plongest (tsv->initial_value)), gdb_stdout); | |
434 | if (tsv->value_known) | |
435 | printf_filtered (" %s", plongest (tsv->value)); | |
00bf0b85 | 436 | else if (current_trace_status ()->running || traceframe_number >= 0) |
f61e138d SS |
437 | /* The value is/was defined, but we don't have it. */ |
438 | printf_filtered (_(" <unknown>")); | |
439 | else | |
440 | /* It is not meaningful to ask about the value. */ | |
441 | printf_filtered (_(" <undefined>")); | |
442 | printf_filtered ("\n"); | |
443 | } | |
444 | } | |
445 | ||
c906108c SS |
446 | /* ACTIONS functions: */ |
447 | ||
448 | /* Prototypes for action-parsing utility commands */ | |
1042e4c0 | 449 | static void read_actions (struct breakpoint *); |
c906108c SS |
450 | |
451 | /* The three functions: | |
c5aa993b JM |
452 | collect_pseudocommand, |
453 | while_stepping_pseudocommand, and | |
454 | end_actions_pseudocommand | |
c906108c SS |
455 | are placeholders for "commands" that are actually ONLY to be used |
456 | within a tracepoint action list. If the actual function is ever called, | |
457 | it means that somebody issued the "command" at the top level, | |
458 | which is always an error. */ | |
459 | ||
1042e4c0 | 460 | void |
fba45db2 | 461 | end_actions_pseudocommand (char *args, int from_tty) |
c906108c | 462 | { |
8a3fe4f8 | 463 | error (_("This command cannot be used at the top level.")); |
c906108c SS |
464 | } |
465 | ||
1042e4c0 | 466 | void |
fba45db2 | 467 | while_stepping_pseudocommand (char *args, int from_tty) |
c906108c | 468 | { |
8a3fe4f8 | 469 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
470 | } |
471 | ||
472 | static void | |
fba45db2 | 473 | collect_pseudocommand (char *args, int from_tty) |
c906108c | 474 | { |
8a3fe4f8 | 475 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
476 | } |
477 | ||
6da95a67 SS |
478 | static void |
479 | teval_pseudocommand (char *args, int from_tty) | |
480 | { | |
481 | error (_("This command can only be used in a tracepoint actions list.")); | |
482 | } | |
483 | ||
c906108c SS |
484 | /* Enter a list of actions for a tracepoint. */ |
485 | static void | |
fba45db2 | 486 | trace_actions_command (char *args, int from_tty) |
c906108c | 487 | { |
1042e4c0 | 488 | struct breakpoint *t; |
c906108c SS |
489 | char tmpbuf[128]; |
490 | char *end_msg = "End with a line saying just \"end\"."; | |
491 | ||
c2d11a7d | 492 | t = get_tracepoint_by_number (&args, 0, 1); |
7a292a7a | 493 | if (t) |
c906108c SS |
494 | { |
495 | sprintf (tmpbuf, "Enter actions for tracepoint %d, one per line.", | |
496 | t->number); | |
497 | ||
498 | if (from_tty) | |
499 | { | |
9a4105ab AC |
500 | if (deprecated_readline_begin_hook) |
501 | (*deprecated_readline_begin_hook) ("%s %s\n", tmpbuf, end_msg); | |
c906108c SS |
502 | else if (input_from_terminal_p ()) |
503 | printf_filtered ("%s\n%s\n", tmpbuf, end_msg); | |
504 | } | |
505 | ||
506 | free_actions (t); | |
507 | t->step_count = 0; /* read_actions may set this */ | |
508 | read_actions (t); | |
509 | ||
9a4105ab AC |
510 | if (deprecated_readline_end_hook) |
511 | (*deprecated_readline_end_hook) (); | |
c906108c SS |
512 | /* tracepoints_changed () */ |
513 | } | |
5c44784c | 514 | /* else just return */ |
c906108c SS |
515 | } |
516 | ||
517 | /* worker function */ | |
518 | static void | |
1042e4c0 | 519 | read_actions (struct breakpoint *t) |
c906108c SS |
520 | { |
521 | char *line; | |
522 | char *prompt1 = "> ", *prompt2 = " > "; | |
523 | char *prompt = prompt1; | |
524 | enum actionline_type linetype; | |
525 | extern FILE *instream; | |
526 | struct action_line *next = NULL, *temp; | |
527 | struct cleanup *old_chain; | |
528 | ||
529 | /* Control-C quits instantly if typed while in this loop | |
530 | since it should not wait until the user types a newline. */ | |
531 | immediate_quit++; | |
1a6fae3c MK |
532 | /* FIXME: kettenis/20010823: Something is wrong here. In this file |
533 | STOP_SIGNAL is never defined. So this code has been left out, at | |
534 | least for quite a while now. Replacing STOP_SIGNAL with SIGTSTP | |
535 | leads to compilation failures since the variable job_control | |
536 | isn't declared. Leave this alone for now. */ | |
c906108c SS |
537 | #ifdef STOP_SIGNAL |
538 | if (job_control) | |
362646f5 | 539 | signal (STOP_SIGNAL, handle_stop_sig); |
c906108c | 540 | #endif |
74b7792f | 541 | old_chain = make_cleanup_free_actions (t); |
c906108c SS |
542 | while (1) |
543 | { | |
d183932d MS |
544 | /* Make sure that all output has been output. Some machines may |
545 | let you get away with leaving out some of the gdb_flush, but | |
546 | not all. */ | |
c906108c SS |
547 | wrap_here (""); |
548 | gdb_flush (gdb_stdout); | |
549 | gdb_flush (gdb_stderr); | |
550 | ||
9a4105ab AC |
551 | if (deprecated_readline_hook && instream == NULL) |
552 | line = (*deprecated_readline_hook) (prompt); | |
c906108c SS |
553 | else if (instream == stdin && ISATTY (instream)) |
554 | { | |
b4f5539f | 555 | line = gdb_readline_wrapper (prompt); |
c5aa993b | 556 | if (line && *line) /* add it to command history */ |
c906108c SS |
557 | add_history (line); |
558 | } | |
559 | else | |
560 | line = gdb_readline (0); | |
561 | ||
549678da | 562 | if (!line) |
d844e34b JB |
563 | { |
564 | line = xstrdup ("end"); | |
565 | printf_filtered ("end\n"); | |
566 | } | |
549678da | 567 | |
c906108c SS |
568 | linetype = validate_actionline (&line, t); |
569 | if (linetype == BADLINE) | |
c5aa993b | 570 | continue; /* already warned -- collect another line */ |
c906108c SS |
571 | |
572 | temp = xmalloc (sizeof (struct action_line)); | |
573 | temp->next = NULL; | |
574 | temp->action = line; | |
575 | ||
576 | if (next == NULL) /* first action for this tracepoint? */ | |
577 | t->actions = next = temp; | |
578 | else | |
579 | { | |
580 | next->next = temp; | |
581 | next = temp; | |
582 | } | |
583 | ||
584 | if (linetype == STEPPING) /* begin "while-stepping" */ | |
7a292a7a SS |
585 | { |
586 | if (prompt == prompt2) | |
587 | { | |
8a3fe4f8 | 588 | warning (_("Already processing 'while-stepping'")); |
7a292a7a SS |
589 | continue; |
590 | } | |
591 | else | |
592 | prompt = prompt2; /* change prompt for stepping actions */ | |
593 | } | |
c906108c | 594 | else if (linetype == END) |
7a292a7a SS |
595 | { |
596 | if (prompt == prompt2) | |
597 | { | |
598 | prompt = prompt1; /* end of single-stepping actions */ | |
599 | } | |
600 | else | |
c5aa993b | 601 | { /* end of actions */ |
7a292a7a SS |
602 | if (t->actions->next == NULL) |
603 | { | |
d183932d MS |
604 | /* An "end" all by itself with no other actions |
605 | means this tracepoint has no actions. | |
606 | Discard empty list. */ | |
7a292a7a SS |
607 | free_actions (t); |
608 | } | |
609 | break; | |
610 | } | |
611 | } | |
c906108c SS |
612 | } |
613 | #ifdef STOP_SIGNAL | |
614 | if (job_control) | |
615 | signal (STOP_SIGNAL, SIG_DFL); | |
616 | #endif | |
8edbea78 | 617 | immediate_quit--; |
c906108c SS |
618 | discard_cleanups (old_chain); |
619 | } | |
620 | ||
621 | /* worker function */ | |
622 | enum actionline_type | |
1042e4c0 | 623 | validate_actionline (char **line, struct breakpoint *t) |
c906108c SS |
624 | { |
625 | struct cmd_list_element *c; | |
626 | struct expression *exp = NULL; | |
c906108c SS |
627 | struct cleanup *old_chain = NULL; |
628 | char *p; | |
629 | ||
15255275 MS |
630 | /* if EOF is typed, *line is NULL */ |
631 | if (*line == NULL) | |
632 | return END; | |
633 | ||
104c1213 | 634 | for (p = *line; isspace ((int) *p);) |
c906108c SS |
635 | p++; |
636 | ||
d183932d MS |
637 | /* Symbol lookup etc. */ |
638 | if (*p == '\0') /* empty line: just prompt for another line. */ | |
c906108c SS |
639 | return BADLINE; |
640 | ||
c5aa993b | 641 | if (*p == '#') /* comment line */ |
c906108c SS |
642 | return GENERIC; |
643 | ||
644 | c = lookup_cmd (&p, cmdlist, "", -1, 1); | |
645 | if (c == 0) | |
646 | { | |
8a3fe4f8 | 647 | warning (_("'%s' is not an action that I know, or is ambiguous."), |
d183932d | 648 | p); |
c906108c SS |
649 | return BADLINE; |
650 | } | |
c5aa993b | 651 | |
bbaca940 | 652 | if (cmd_cfunc_eq (c, collect_pseudocommand)) |
c906108c SS |
653 | { |
654 | struct agent_expr *aexpr; | |
655 | struct agent_reqs areqs; | |
656 | ||
c5aa993b JM |
657 | do |
658 | { /* repeat over a comma-separated list */ | |
659 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 660 | while (isspace ((int) *p)) |
c5aa993b | 661 | p++; |
c906108c | 662 | |
c5aa993b JM |
663 | if (*p == '$') /* look for special pseudo-symbols */ |
664 | { | |
c5aa993b JM |
665 | if ((0 == strncasecmp ("reg", p + 1, 3)) || |
666 | (0 == strncasecmp ("arg", p + 1, 3)) || | |
667 | (0 == strncasecmp ("loc", p + 1, 3))) | |
668 | { | |
669 | p = strchr (p, ','); | |
670 | continue; | |
671 | } | |
d183932d | 672 | /* else fall thru, treat p as an expression and parse it! */ |
c5aa993b | 673 | } |
1042e4c0 | 674 | exp = parse_exp_1 (&p, block_for_pc (t->loc->address), 1); |
c13c43fd | 675 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 676 | |
c5aa993b JM |
677 | if (exp->elts[0].opcode == OP_VAR_VALUE) |
678 | { | |
679 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) | |
680 | { | |
8a3fe4f8 | 681 | warning (_("constant %s (value %ld) will not be collected."), |
3567439c | 682 | SYMBOL_PRINT_NAME (exp->elts[2].symbol), |
c5aa993b JM |
683 | SYMBOL_VALUE (exp->elts[2].symbol)); |
684 | return BADLINE; | |
685 | } | |
686 | else if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_OPTIMIZED_OUT) | |
687 | { | |
8a3fe4f8 | 688 | warning (_("%s is optimized away and cannot be collected."), |
3567439c | 689 | SYMBOL_PRINT_NAME (exp->elts[2].symbol)); |
c5aa993b JM |
690 | return BADLINE; |
691 | } | |
692 | } | |
c906108c | 693 | |
d183932d MS |
694 | /* We have something to collect, make sure that the expr to |
695 | bytecode translator can handle it and that it's not too | |
696 | long. */ | |
1042e4c0 | 697 | aexpr = gen_trace_for_expr (t->loc->address, exp); |
f23d52e0 | 698 | make_cleanup_free_agent_expr (aexpr); |
c906108c | 699 | |
c5aa993b | 700 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
8a3fe4f8 | 701 | error (_("expression too complicated, try simplifying")); |
c906108c | 702 | |
c5aa993b | 703 | ax_reqs (aexpr, &areqs); |
b8c9b27d | 704 | (void) make_cleanup (xfree, areqs.reg_mask); |
c906108c | 705 | |
c5aa993b | 706 | if (areqs.flaw != agent_flaw_none) |
8a3fe4f8 | 707 | error (_("malformed expression")); |
c906108c | 708 | |
c5aa993b | 709 | if (areqs.min_height < 0) |
8a3fe4f8 | 710 | error (_("gdb: Internal error: expression has min height < 0")); |
c906108c | 711 | |
c5aa993b | 712 | if (areqs.max_height > 20) |
8a3fe4f8 | 713 | error (_("expression too complicated, try simplifying")); |
c906108c | 714 | |
c5aa993b JM |
715 | do_cleanups (old_chain); |
716 | } | |
717 | while (p && *p++ == ','); | |
c906108c SS |
718 | return GENERIC; |
719 | } | |
6da95a67 SS |
720 | else if (cmd_cfunc_eq (c, teval_pseudocommand)) |
721 | { | |
722 | struct agent_expr *aexpr; | |
723 | ||
724 | do | |
725 | { /* repeat over a comma-separated list */ | |
726 | QUIT; /* allow user to bail out with ^C */ | |
727 | while (isspace ((int) *p)) | |
728 | p++; | |
729 | ||
730 | /* Only expressions are allowed for this action. */ | |
731 | exp = parse_exp_1 (&p, block_for_pc (t->loc->address), 1); | |
732 | old_chain = make_cleanup (free_current_contents, &exp); | |
733 | ||
734 | /* We have something to evaluate, make sure that the expr to | |
735 | bytecode translator can handle it and that it's not too | |
736 | long. */ | |
737 | aexpr = gen_eval_for_expr (t->loc->address, exp); | |
738 | make_cleanup_free_agent_expr (aexpr); | |
739 | ||
740 | if (aexpr->len > MAX_AGENT_EXPR_LEN) | |
741 | error (_("expression too complicated, try simplifying")); | |
742 | ||
743 | do_cleanups (old_chain); | |
744 | } | |
745 | while (p && *p++ == ','); | |
746 | return GENERIC; | |
747 | } | |
bbaca940 | 748 | else if (cmd_cfunc_eq (c, while_stepping_pseudocommand)) |
c906108c | 749 | { |
c5aa993b | 750 | char *steparg; /* in case warning is necessary */ |
c906108c | 751 | |
104c1213 | 752 | while (isspace ((int) *p)) |
c906108c SS |
753 | p++; |
754 | steparg = p; | |
755 | ||
756 | if (*p == '\0' || | |
757 | (t->step_count = strtol (p, &p, 0)) == 0) | |
758 | { | |
8a3fe4f8 | 759 | warning (_("'%s': bad step-count; command ignored."), *line); |
c906108c SS |
760 | return BADLINE; |
761 | } | |
762 | return STEPPING; | |
763 | } | |
bbaca940 | 764 | else if (cmd_cfunc_eq (c, end_actions_pseudocommand)) |
c906108c SS |
765 | return END; |
766 | else | |
767 | { | |
8a3fe4f8 | 768 | warning (_("'%s' is not a supported tracepoint action."), *line); |
c906108c SS |
769 | return BADLINE; |
770 | } | |
771 | } | |
772 | ||
773 | /* worker function */ | |
c5aa993b | 774 | void |
1042e4c0 | 775 | free_actions (struct breakpoint *t) |
c906108c SS |
776 | { |
777 | struct action_line *line, *next; | |
778 | ||
779 | for (line = t->actions; line; line = next) | |
780 | { | |
781 | next = line->next; | |
c5aa993b | 782 | if (line->action) |
b8c9b27d KB |
783 | xfree (line->action); |
784 | xfree (line); | |
c906108c SS |
785 | } |
786 | t->actions = NULL; | |
787 | } | |
788 | ||
74b7792f AC |
789 | static void |
790 | do_free_actions_cleanup (void *t) | |
791 | { | |
792 | free_actions (t); | |
793 | } | |
794 | ||
795 | static struct cleanup * | |
1042e4c0 | 796 | make_cleanup_free_actions (struct breakpoint *t) |
74b7792f AC |
797 | { |
798 | return make_cleanup (do_free_actions_cleanup, t); | |
799 | } | |
800 | ||
f50e79a4 JB |
801 | enum { |
802 | memrange_absolute = -1 | |
803 | }; | |
804 | ||
c5aa993b JM |
805 | struct memrange |
806 | { | |
f50e79a4 JB |
807 | int type; /* memrange_absolute for absolute memory range, |
808 | else basereg number */ | |
c906108c SS |
809 | bfd_signed_vma start; |
810 | bfd_signed_vma end; | |
811 | }; | |
812 | ||
c5aa993b JM |
813 | struct collection_list |
814 | { | |
549678da | 815 | unsigned char regs_mask[32]; /* room for up to 256 regs */ |
c5aa993b JM |
816 | long listsize; |
817 | long next_memrange; | |
818 | struct memrange *list; | |
819 | long aexpr_listsize; /* size of array pointed to by expr_list elt */ | |
820 | long next_aexpr_elt; | |
821 | struct agent_expr **aexpr_list; | |
822 | ||
823 | } | |
824 | tracepoint_list, stepping_list; | |
c906108c SS |
825 | |
826 | /* MEMRANGE functions: */ | |
827 | ||
a14ed312 | 828 | static int memrange_cmp (const void *, const void *); |
c906108c SS |
829 | |
830 | /* compare memranges for qsort */ | |
831 | static int | |
fba45db2 | 832 | memrange_cmp (const void *va, const void *vb) |
c906108c SS |
833 | { |
834 | const struct memrange *a = va, *b = vb; | |
835 | ||
836 | if (a->type < b->type) | |
837 | return -1; | |
838 | if (a->type > b->type) | |
c5aa993b | 839 | return 1; |
f50e79a4 | 840 | if (a->type == memrange_absolute) |
c906108c | 841 | { |
c5aa993b JM |
842 | if ((bfd_vma) a->start < (bfd_vma) b->start) |
843 | return -1; | |
844 | if ((bfd_vma) a->start > (bfd_vma) b->start) | |
845 | return 1; | |
c906108c SS |
846 | } |
847 | else | |
848 | { | |
c5aa993b | 849 | if (a->start < b->start) |
c906108c | 850 | return -1; |
c5aa993b JM |
851 | if (a->start > b->start) |
852 | return 1; | |
c906108c SS |
853 | } |
854 | return 0; | |
855 | } | |
856 | ||
d183932d | 857 | /* Sort the memrange list using qsort, and merge adjacent memranges. */ |
c906108c | 858 | static void |
fba45db2 | 859 | memrange_sortmerge (struct collection_list *memranges) |
c906108c SS |
860 | { |
861 | int a, b; | |
862 | ||
c5aa993b | 863 | qsort (memranges->list, memranges->next_memrange, |
c906108c SS |
864 | sizeof (struct memrange), memrange_cmp); |
865 | if (memranges->next_memrange > 0) | |
866 | { | |
867 | for (a = 0, b = 1; b < memranges->next_memrange; b++) | |
868 | { | |
869 | if (memranges->list[a].type == memranges->list[b].type && | |
c5aa993b | 870 | memranges->list[b].start - memranges->list[a].end <= |
0c92afe8 | 871 | MAX_REGISTER_SIZE) |
c906108c SS |
872 | { |
873 | /* memrange b starts before memrange a ends; merge them. */ | |
874 | if (memranges->list[b].end > memranges->list[a].end) | |
875 | memranges->list[a].end = memranges->list[b].end; | |
876 | continue; /* next b, same a */ | |
877 | } | |
878 | a++; /* next a */ | |
879 | if (a != b) | |
c5aa993b | 880 | memcpy (&memranges->list[a], &memranges->list[b], |
c906108c SS |
881 | sizeof (struct memrange)); |
882 | } | |
883 | memranges->next_memrange = a + 1; | |
884 | } | |
885 | } | |
886 | ||
d183932d | 887 | /* Add a register to a collection list. */ |
392a587b | 888 | static void |
fba45db2 | 889 | add_register (struct collection_list *collection, unsigned int regno) |
c906108c SS |
890 | { |
891 | if (info_verbose) | |
892 | printf_filtered ("collect register %d\n", regno); | |
27e06d3e | 893 | if (regno >= (8 * sizeof (collection->regs_mask))) |
8a3fe4f8 | 894 | error (_("Internal: register number %d too large for tracepoint"), |
c906108c | 895 | regno); |
c5aa993b | 896 | collection->regs_mask[regno / 8] |= 1 << (regno % 8); |
c906108c SS |
897 | } |
898 | ||
899 | /* Add a memrange to a collection list */ | |
900 | static void | |
d183932d MS |
901 | add_memrange (struct collection_list *memranges, |
902 | int type, bfd_signed_vma base, | |
fba45db2 | 903 | unsigned long len) |
c906108c SS |
904 | { |
905 | if (info_verbose) | |
104c1213 JM |
906 | { |
907 | printf_filtered ("(%d,", type); | |
908 | printf_vma (base); | |
909 | printf_filtered (",%ld)\n", len); | |
910 | } | |
911 | ||
f50e79a4 | 912 | /* type: memrange_absolute == memory, other n == basereg */ |
c5aa993b | 913 | memranges->list[memranges->next_memrange].type = type; |
d183932d | 914 | /* base: addr if memory, offset if reg relative. */ |
c906108c SS |
915 | memranges->list[memranges->next_memrange].start = base; |
916 | /* len: we actually save end (base + len) for convenience */ | |
c5aa993b | 917 | memranges->list[memranges->next_memrange].end = base + len; |
c906108c SS |
918 | memranges->next_memrange++; |
919 | if (memranges->next_memrange >= memranges->listsize) | |
920 | { | |
921 | memranges->listsize *= 2; | |
c5aa993b | 922 | memranges->list = xrealloc (memranges->list, |
c906108c SS |
923 | memranges->listsize); |
924 | } | |
925 | ||
f50e79a4 | 926 | if (type != memrange_absolute) /* Better collect the base register! */ |
c906108c SS |
927 | add_register (memranges, type); |
928 | } | |
929 | ||
d183932d | 930 | /* Add a symbol to a collection list. */ |
c906108c | 931 | static void |
d183932d MS |
932 | collect_symbol (struct collection_list *collect, |
933 | struct symbol *sym, | |
a6d9a66e | 934 | struct gdbarch *gdbarch, |
0936ad1d SS |
935 | long frame_regno, long frame_offset, |
936 | CORE_ADDR scope) | |
c906108c | 937 | { |
c5aa993b | 938 | unsigned long len; |
104c1213 | 939 | unsigned int reg; |
c906108c SS |
940 | bfd_signed_vma offset; |
941 | ||
c5aa993b JM |
942 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
943 | switch (SYMBOL_CLASS (sym)) | |
944 | { | |
945 | default: | |
946 | printf_filtered ("%s: don't know symbol class %d\n", | |
3567439c | 947 | SYMBOL_PRINT_NAME (sym), |
d183932d | 948 | SYMBOL_CLASS (sym)); |
c5aa993b JM |
949 | break; |
950 | case LOC_CONST: | |
104c1213 | 951 | printf_filtered ("constant %s (value %ld) will not be collected.\n", |
3567439c | 952 | SYMBOL_PRINT_NAME (sym), SYMBOL_VALUE (sym)); |
c5aa993b JM |
953 | break; |
954 | case LOC_STATIC: | |
955 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
956 | if (info_verbose) | |
104c1213 JM |
957 | { |
958 | char tmp[40]; | |
959 | ||
960 | sprintf_vma (tmp, offset); | |
961 | printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", | |
3567439c | 962 | SYMBOL_PRINT_NAME (sym), len, |
d183932d | 963 | tmp /* address */); |
104c1213 | 964 | } |
f50e79a4 | 965 | add_memrange (collect, memrange_absolute, offset, len); |
c5aa993b JM |
966 | break; |
967 | case LOC_REGISTER: | |
a6d9a66e | 968 | reg = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); |
c5aa993b | 969 | if (info_verbose) |
d183932d | 970 | printf_filtered ("LOC_REG[parm] %s: ", |
3567439c | 971 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 972 | add_register (collect, reg); |
d183932d MS |
973 | /* Check for doubles stored in two registers. */ |
974 | /* FIXME: how about larger types stored in 3 or more regs? */ | |
c5aa993b | 975 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT && |
a6d9a66e | 976 | len > register_size (gdbarch, reg)) |
c5aa993b JM |
977 | add_register (collect, reg + 1); |
978 | break; | |
979 | case LOC_REF_ARG: | |
980 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); | |
981 | printf_filtered (" (will not collect %s)\n", | |
3567439c | 982 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
983 | break; |
984 | case LOC_ARG: | |
985 | reg = frame_regno; | |
986 | offset = frame_offset + SYMBOL_VALUE (sym); | |
987 | if (info_verbose) | |
988 | { | |
104c1213 | 989 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 990 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
991 | printf_vma (offset); |
992 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
993 | } |
994 | add_memrange (collect, reg, offset, len); | |
995 | break; | |
996 | case LOC_REGPARM_ADDR: | |
997 | reg = SYMBOL_VALUE (sym); | |
998 | offset = 0; | |
999 | if (info_verbose) | |
1000 | { | |
104c1213 | 1001 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ", |
3567439c | 1002 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
1003 | printf_vma (offset); |
1004 | printf_filtered (" from reg %d\n", reg); | |
c5aa993b JM |
1005 | } |
1006 | add_memrange (collect, reg, offset, len); | |
1007 | break; | |
1008 | case LOC_LOCAL: | |
c5aa993b JM |
1009 | reg = frame_regno; |
1010 | offset = frame_offset + SYMBOL_VALUE (sym); | |
1011 | if (info_verbose) | |
1012 | { | |
104c1213 | 1013 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 1014 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
1015 | printf_vma (offset); |
1016 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
1017 | } |
1018 | add_memrange (collect, reg, offset, len); | |
1019 | break; | |
c5aa993b | 1020 | case LOC_UNRESOLVED: |
d183932d | 1021 | printf_filtered ("Don't know LOC_UNRESOLVED %s\n", |
3567439c | 1022 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
1023 | break; |
1024 | case LOC_OPTIMIZED_OUT: | |
8e1a459b | 1025 | printf_filtered ("%s has been optimized out of existence.\n", |
3567439c | 1026 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 1027 | break; |
0936ad1d SS |
1028 | |
1029 | case LOC_COMPUTED: | |
1030 | { | |
1031 | struct agent_expr *aexpr; | |
1032 | struct cleanup *old_chain1 = NULL; | |
1033 | struct agent_reqs areqs; | |
1034 | ||
1035 | aexpr = gen_trace_for_var (scope, sym); | |
1036 | ||
1037 | old_chain1 = make_cleanup_free_agent_expr (aexpr); | |
1038 | ||
1039 | ax_reqs (aexpr, &areqs); | |
1040 | if (areqs.flaw != agent_flaw_none) | |
1041 | error (_("malformed expression")); | |
1042 | ||
1043 | if (areqs.min_height < 0) | |
1044 | error (_("gdb: Internal error: expression has min height < 0")); | |
1045 | if (areqs.max_height > 20) | |
1046 | error (_("expression too complicated, try simplifying")); | |
1047 | ||
1048 | discard_cleanups (old_chain1); | |
1049 | add_aexpr (collect, aexpr); | |
1050 | ||
1051 | /* take care of the registers */ | |
1052 | if (areqs.reg_mask_len > 0) | |
1053 | { | |
1054 | int ndx1, ndx2; | |
1055 | ||
1056 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) | |
1057 | { | |
1058 | QUIT; /* allow user to bail out with ^C */ | |
1059 | if (areqs.reg_mask[ndx1] != 0) | |
1060 | { | |
1061 | /* assume chars have 8 bits */ | |
1062 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
1063 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) | |
1064 | /* it's used -- record it */ | |
1065 | add_register (collect, | |
1066 | ndx1 * 8 + ndx2); | |
1067 | } | |
1068 | } | |
1069 | } | |
1070 | } | |
1071 | break; | |
c5aa993b | 1072 | } |
c906108c SS |
1073 | } |
1074 | ||
1075 | /* Add all locals (or args) symbols to collection list */ | |
1076 | static void | |
a6d9a66e UW |
1077 | add_local_symbols (struct collection_list *collect, |
1078 | struct gdbarch *gdbarch, CORE_ADDR pc, | |
fba45db2 | 1079 | long frame_regno, long frame_offset, int type) |
c906108c SS |
1080 | { |
1081 | struct symbol *sym; | |
c5aa993b | 1082 | struct block *block; |
de4f826b DC |
1083 | struct dict_iterator iter; |
1084 | int count = 0; | |
c906108c SS |
1085 | |
1086 | block = block_for_pc (pc); | |
1087 | while (block != 0) | |
1088 | { | |
c5aa993b | 1089 | QUIT; /* allow user to bail out with ^C */ |
de4f826b | 1090 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 1091 | { |
2a2d4dc3 AS |
1092 | if (SYMBOL_IS_ARGUMENT (sym) |
1093 | ? type == 'A' /* collecting Arguments */ | |
1094 | : type == 'L') /* collecting Locals */ | |
c5aa993b | 1095 | { |
2a2d4dc3 | 1096 | count++; |
a6d9a66e | 1097 | collect_symbol (collect, sym, gdbarch, |
0936ad1d | 1098 | frame_regno, frame_offset, pc); |
c5aa993b | 1099 | } |
c906108c SS |
1100 | } |
1101 | if (BLOCK_FUNCTION (block)) | |
1102 | break; | |
1103 | else | |
1104 | block = BLOCK_SUPERBLOCK (block); | |
1105 | } | |
1106 | if (count == 0) | |
8a3fe4f8 | 1107 | warning (_("No %s found in scope."), |
d183932d | 1108 | type == 'L' ? "locals" : "args"); |
c906108c SS |
1109 | } |
1110 | ||
1111 | /* worker function */ | |
1112 | static void | |
fba45db2 | 1113 | clear_collection_list (struct collection_list *list) |
c906108c SS |
1114 | { |
1115 | int ndx; | |
1116 | ||
1117 | list->next_memrange = 0; | |
1118 | for (ndx = 0; ndx < list->next_aexpr_elt; ndx++) | |
1119 | { | |
c5aa993b | 1120 | free_agent_expr (list->aexpr_list[ndx]); |
c906108c SS |
1121 | list->aexpr_list[ndx] = NULL; |
1122 | } | |
1123 | list->next_aexpr_elt = 0; | |
1124 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); | |
1125 | } | |
1126 | ||
1127 | /* reduce a collection list to string form (for gdb protocol) */ | |
1128 | static char ** | |
fba45db2 | 1129 | stringify_collection_list (struct collection_list *list, char *string) |
c906108c SS |
1130 | { |
1131 | char temp_buf[2048]; | |
104c1213 | 1132 | char tmp2[40]; |
c906108c SS |
1133 | int count; |
1134 | int ndx = 0; | |
1135 | char *(*str_list)[]; | |
1136 | char *end; | |
c5aa993b | 1137 | long i; |
c906108c SS |
1138 | |
1139 | count = 1 + list->next_memrange + list->next_aexpr_elt + 1; | |
c5aa993b | 1140 | str_list = (char *(*)[]) xmalloc (count * sizeof (char *)); |
c906108c SS |
1141 | |
1142 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) | |
1143 | if (list->regs_mask[i] != 0) /* skip leading zeroes in regs_mask */ | |
1144 | break; | |
1145 | if (list->regs_mask[i] != 0) /* prepare to send regs_mask to the stub */ | |
1146 | { | |
1147 | if (info_verbose) | |
1148 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
1149 | end = temp_buf; | |
c5aa993b | 1150 | *end++ = 'R'; |
c906108c SS |
1151 | for (; i >= 0; i--) |
1152 | { | |
c5aa993b | 1153 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
1154 | if (info_verbose) |
1155 | printf_filtered ("%02X", list->regs_mask[i]); | |
c5aa993b | 1156 | sprintf (end, "%02X", list->regs_mask[i]); |
c906108c SS |
1157 | end += 2; |
1158 | } | |
1b36a34b | 1159 | (*str_list)[ndx] = xstrdup (temp_buf); |
c906108c SS |
1160 | ndx++; |
1161 | } | |
1162 | if (info_verbose) | |
1163 | printf_filtered ("\n"); | |
1164 | if (list->next_memrange > 0 && info_verbose) | |
1165 | printf_filtered ("Collecting memranges: \n"); | |
1166 | for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++) | |
1167 | { | |
1168 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 1169 | sprintf_vma (tmp2, list->list[i].start); |
c906108c | 1170 | if (info_verbose) |
104c1213 JM |
1171 | { |
1172 | printf_filtered ("(%d, %s, %ld)\n", | |
1173 | list->list[i].type, | |
1174 | tmp2, | |
1175 | (long) (list->list[i].end - list->list[i].start)); | |
1176 | } | |
c906108c SS |
1177 | if (count + 27 > MAX_AGENT_EXPR_LEN) |
1178 | { | |
c5aa993b | 1179 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1180 | ndx++; |
1181 | count = 0; | |
1182 | end = temp_buf; | |
1183 | } | |
104c1213 | 1184 | |
d1948716 JB |
1185 | { |
1186 | bfd_signed_vma length = list->list[i].end - list->list[i].start; | |
1187 | ||
1188 | /* The "%X" conversion specifier expects an unsigned argument, | |
f50e79a4 JB |
1189 | so passing -1 (memrange_absolute) to it directly gives you |
1190 | "FFFFFFFF" (or more, depending on sizeof (unsigned)). | |
1191 | Special-case it. */ | |
1192 | if (list->list[i].type == memrange_absolute) | |
d1948716 JB |
1193 | sprintf (end, "M-1,%s,%lX", tmp2, (long) length); |
1194 | else | |
1195 | sprintf (end, "M%X,%s,%lX", list->list[i].type, tmp2, (long) length); | |
1196 | } | |
104c1213 | 1197 | |
c906108c | 1198 | count += strlen (end); |
3ffbc0a5 | 1199 | end = temp_buf + count; |
c906108c SS |
1200 | } |
1201 | ||
1202 | for (i = 0; i < list->next_aexpr_elt; i++) | |
1203 | { | |
1204 | QUIT; /* allow user to bail out with ^C */ | |
1205 | if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN) | |
1206 | { | |
c5aa993b | 1207 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1208 | ndx++; |
1209 | count = 0; | |
1210 | end = temp_buf; | |
1211 | } | |
1212 | sprintf (end, "X%08X,", list->aexpr_list[i]->len); | |
1213 | end += 10; /* 'X' + 8 hex digits + ',' */ | |
1214 | count += 10; | |
1215 | ||
d183932d MS |
1216 | end = mem2hex (list->aexpr_list[i]->buf, |
1217 | end, list->aexpr_list[i]->len); | |
c906108c SS |
1218 | count += 2 * list->aexpr_list[i]->len; |
1219 | } | |
1220 | ||
1221 | if (count != 0) | |
1222 | { | |
c5aa993b | 1223 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1224 | ndx++; |
1225 | count = 0; | |
1226 | end = temp_buf; | |
1227 | } | |
1228 | (*str_list)[ndx] = NULL; | |
1229 | ||
1230 | if (ndx == 0) | |
27e06d3e | 1231 | { |
6c761d9c | 1232 | xfree (str_list); |
27e06d3e MS |
1233 | return NULL; |
1234 | } | |
c906108c SS |
1235 | else |
1236 | return *str_list; | |
1237 | } | |
1238 | ||
d183932d | 1239 | /* Render all actions into gdb protocol. */ |
35b1e5cc | 1240 | /*static*/ void |
1042e4c0 | 1241 | encode_actions (struct breakpoint *t, char ***tdp_actions, |
fba45db2 | 1242 | char ***stepping_actions) |
c906108c | 1243 | { |
c5aa993b JM |
1244 | static char tdp_buff[2048], step_buff[2048]; |
1245 | char *action_exp; | |
1246 | struct expression *exp = NULL; | |
c906108c | 1247 | struct action_line *action; |
104c1213 | 1248 | int i; |
f976f6d4 | 1249 | struct value *tempval; |
c5aa993b | 1250 | struct collection_list *collect; |
c906108c SS |
1251 | struct cmd_list_element *cmd; |
1252 | struct agent_expr *aexpr; | |
39d4ef09 AC |
1253 | int frame_reg; |
1254 | LONGEST frame_offset; | |
236f1d4d SS |
1255 | char *default_collect_line = NULL; |
1256 | struct action_line *default_collect_action = NULL; | |
c906108c SS |
1257 | |
1258 | clear_collection_list (&tracepoint_list); | |
1259 | clear_collection_list (&stepping_list); | |
1260 | collect = &tracepoint_list; | |
1261 | ||
1262 | *tdp_actions = NULL; | |
1263 | *stepping_actions = NULL; | |
1264 | ||
a6d9a66e | 1265 | gdbarch_virtual_frame_pointer (t->gdbarch, |
1042e4c0 | 1266 | t->loc->address, &frame_reg, &frame_offset); |
c906108c | 1267 | |
236f1d4d SS |
1268 | action = t->actions; |
1269 | ||
1270 | /* If there are default expressions to collect, make up a collect | |
1271 | action and prepend to the action list to encode. Note that since | |
1272 | validation is per-tracepoint (local var "xyz" might be valid for | |
1273 | one tracepoint and not another, etc), we make up the action on | |
1274 | the fly, and don't cache it. */ | |
1275 | if (*default_collect) | |
1276 | { | |
1277 | char *line; | |
1278 | enum actionline_type linetype; | |
1279 | ||
1280 | default_collect_line = xmalloc (12 + strlen (default_collect)); | |
1281 | sprintf (default_collect_line, "collect %s", default_collect); | |
1282 | line = default_collect_line; | |
1283 | linetype = validate_actionline (&line, t); | |
1284 | if (linetype != BADLINE) | |
1285 | { | |
1286 | default_collect_action = xmalloc (sizeof (struct action_line)); | |
1287 | default_collect_action->next = t->actions; | |
1288 | default_collect_action->action = line; | |
1289 | action = default_collect_action; | |
1290 | } | |
1291 | } | |
1292 | ||
1293 | for (; action; action = action->next) | |
c906108c SS |
1294 | { |
1295 | QUIT; /* allow user to bail out with ^C */ | |
1296 | action_exp = action->action; | |
104c1213 | 1297 | while (isspace ((int) *action_exp)) |
c906108c SS |
1298 | action_exp++; |
1299 | ||
1300 | if (*action_exp == '#') /* comment line */ | |
1301 | return; | |
1302 | ||
1303 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
1304 | if (cmd == 0) | |
8a3fe4f8 | 1305 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 1306 | |
bbaca940 | 1307 | if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c | 1308 | { |
c5aa993b JM |
1309 | do |
1310 | { /* repeat over a comma-separated list */ | |
1311 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 1312 | while (isspace ((int) *action_exp)) |
c5aa993b | 1313 | action_exp++; |
c906108c | 1314 | |
c5aa993b JM |
1315 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1316 | { | |
a6d9a66e | 1317 | for (i = 0; i < gdbarch_num_regs (t->gdbarch); i++) |
c5aa993b JM |
1318 | add_register (collect, i); |
1319 | action_exp = strchr (action_exp, ','); /* more? */ | |
1320 | } | |
1321 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1322 | { | |
1323 | add_local_symbols (collect, | |
a6d9a66e | 1324 | t->gdbarch, |
1042e4c0 | 1325 | t->loc->address, |
c5aa993b JM |
1326 | frame_reg, |
1327 | frame_offset, | |
1328 | 'A'); | |
1329 | action_exp = strchr (action_exp, ','); /* more? */ | |
1330 | } | |
1331 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1332 | { | |
1333 | add_local_symbols (collect, | |
a6d9a66e | 1334 | t->gdbarch, |
1042e4c0 | 1335 | t->loc->address, |
c5aa993b JM |
1336 | frame_reg, |
1337 | frame_offset, | |
1338 | 'L'); | |
1339 | action_exp = strchr (action_exp, ','); /* more? */ | |
1340 | } | |
1341 | else | |
1342 | { | |
1343 | unsigned long addr, len; | |
1344 | struct cleanup *old_chain = NULL; | |
1345 | struct cleanup *old_chain1 = NULL; | |
1346 | struct agent_reqs areqs; | |
1347 | ||
75ac9d7b | 1348 | exp = parse_exp_1 (&action_exp, |
1042e4c0 | 1349 | block_for_pc (t->loc->address), 1); |
74b7792f | 1350 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 1351 | |
c5aa993b JM |
1352 | switch (exp->elts[0].opcode) |
1353 | { | |
1354 | case OP_REGISTER: | |
67f3407f DJ |
1355 | { |
1356 | const char *name = &exp->elts[2].string; | |
1357 | ||
a6d9a66e | 1358 | i = user_reg_map_name_to_regnum (t->gdbarch, |
029a67e4 | 1359 | name, strlen (name)); |
67f3407f DJ |
1360 | if (i == -1) |
1361 | internal_error (__FILE__, __LINE__, | |
1362 | _("Register $%s not available"), | |
1363 | name); | |
1364 | if (info_verbose) | |
1365 | printf_filtered ("OP_REGISTER: "); | |
1366 | add_register (collect, i); | |
1367 | break; | |
1368 | } | |
c5aa993b JM |
1369 | |
1370 | case UNOP_MEMVAL: | |
1371 | /* safe because we know it's a simple expression */ | |
1372 | tempval = evaluate_expression (exp); | |
42ae5230 | 1373 | addr = value_address (tempval); |
c5aa993b | 1374 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); |
f50e79a4 | 1375 | add_memrange (collect, memrange_absolute, addr, len); |
c5aa993b JM |
1376 | break; |
1377 | ||
1378 | case OP_VAR_VALUE: | |
1379 | collect_symbol (collect, | |
1380 | exp->elts[2].symbol, | |
a6d9a66e | 1381 | t->gdbarch, |
c5aa993b | 1382 | frame_reg, |
0936ad1d SS |
1383 | frame_offset, |
1384 | t->loc->address); | |
c5aa993b JM |
1385 | break; |
1386 | ||
1387 | default: /* full-fledged expression */ | |
1042e4c0 | 1388 | aexpr = gen_trace_for_expr (t->loc->address, exp); |
c5aa993b | 1389 | |
f23d52e0 | 1390 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
c5aa993b JM |
1391 | |
1392 | ax_reqs (aexpr, &areqs); | |
1393 | if (areqs.flaw != agent_flaw_none) | |
8a3fe4f8 | 1394 | error (_("malformed expression")); |
c5aa993b JM |
1395 | |
1396 | if (areqs.min_height < 0) | |
8a3fe4f8 | 1397 | error (_("gdb: Internal error: expression has min height < 0")); |
c5aa993b | 1398 | if (areqs.max_height > 20) |
8a3fe4f8 | 1399 | error (_("expression too complicated, try simplifying")); |
c5aa993b JM |
1400 | |
1401 | discard_cleanups (old_chain1); | |
1402 | add_aexpr (collect, aexpr); | |
1403 | ||
1404 | /* take care of the registers */ | |
1405 | if (areqs.reg_mask_len > 0) | |
c906108c | 1406 | { |
c5aa993b JM |
1407 | int ndx1; |
1408 | int ndx2; | |
1409 | ||
1410 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) | |
c906108c | 1411 | { |
c5aa993b JM |
1412 | QUIT; /* allow user to bail out with ^C */ |
1413 | if (areqs.reg_mask[ndx1] != 0) | |
1414 | { | |
1415 | /* assume chars have 8 bits */ | |
1416 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
1417 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) | |
1418 | /* it's used -- record it */ | |
d183932d MS |
1419 | add_register (collect, |
1420 | ndx1 * 8 + ndx2); | |
c5aa993b | 1421 | } |
c906108c SS |
1422 | } |
1423 | } | |
c5aa993b JM |
1424 | break; |
1425 | } /* switch */ | |
1426 | do_cleanups (old_chain); | |
1427 | } /* do */ | |
1428 | } | |
1429 | while (action_exp && *action_exp++ == ','); | |
1430 | } /* if */ | |
6da95a67 SS |
1431 | else if (cmd_cfunc_eq (cmd, teval_pseudocommand)) |
1432 | { | |
1433 | do | |
1434 | { /* repeat over a comma-separated list */ | |
1435 | QUIT; /* allow user to bail out with ^C */ | |
1436 | while (isspace ((int) *action_exp)) | |
1437 | action_exp++; | |
1438 | ||
1439 | { | |
1440 | unsigned long addr, len; | |
1441 | struct cleanup *old_chain = NULL; | |
1442 | struct cleanup *old_chain1 = NULL; | |
1443 | struct agent_reqs areqs; | |
1444 | ||
1445 | exp = parse_exp_1 (&action_exp, | |
1446 | block_for_pc (t->loc->address), 1); | |
1447 | old_chain = make_cleanup (free_current_contents, &exp); | |
1448 | ||
1449 | aexpr = gen_eval_for_expr (t->loc->address, exp); | |
1450 | old_chain1 = make_cleanup_free_agent_expr (aexpr); | |
1451 | ||
1452 | ax_reqs (aexpr, &areqs); | |
1453 | if (areqs.flaw != agent_flaw_none) | |
1454 | error (_("malformed expression")); | |
1455 | ||
1456 | if (areqs.min_height < 0) | |
1457 | error (_("gdb: Internal error: expression has min height < 0")); | |
1458 | if (areqs.max_height > 20) | |
1459 | error (_("expression too complicated, try simplifying")); | |
1460 | ||
1461 | discard_cleanups (old_chain1); | |
1462 | /* Even though we're not officially collecting, add | |
1463 | to the collect list anyway. */ | |
1464 | add_aexpr (collect, aexpr); | |
1465 | ||
1466 | do_cleanups (old_chain); | |
1467 | } /* do */ | |
1468 | } | |
1469 | while (action_exp && *action_exp++ == ','); | |
1470 | } /* if */ | |
bbaca940 | 1471 | else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c SS |
1472 | { |
1473 | collect = &stepping_list; | |
1474 | } | |
bbaca940 | 1475 | else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand)) |
c906108c SS |
1476 | { |
1477 | if (collect == &stepping_list) /* end stepping actions */ | |
1478 | collect = &tracepoint_list; | |
1479 | else | |
c5aa993b | 1480 | break; /* end tracepoint actions */ |
c906108c | 1481 | } |
c5aa993b JM |
1482 | } /* for */ |
1483 | memrange_sortmerge (&tracepoint_list); | |
1484 | memrange_sortmerge (&stepping_list); | |
c906108c | 1485 | |
d183932d MS |
1486 | *tdp_actions = stringify_collection_list (&tracepoint_list, |
1487 | tdp_buff); | |
1488 | *stepping_actions = stringify_collection_list (&stepping_list, | |
1489 | step_buff); | |
236f1d4d SS |
1490 | |
1491 | xfree (default_collect_line); | |
1492 | xfree (default_collect_action); | |
c906108c SS |
1493 | } |
1494 | ||
1495 | static void | |
fba45db2 | 1496 | add_aexpr (struct collection_list *collect, struct agent_expr *aexpr) |
c906108c SS |
1497 | { |
1498 | if (collect->next_aexpr_elt >= collect->aexpr_listsize) | |
1499 | { | |
1500 | collect->aexpr_list = | |
1501 | xrealloc (collect->aexpr_list, | |
c5aa993b | 1502 | 2 * collect->aexpr_listsize * sizeof (struct agent_expr *)); |
c906108c SS |
1503 | collect->aexpr_listsize *= 2; |
1504 | } | |
1505 | collect->aexpr_list[collect->next_aexpr_elt] = aexpr; | |
1506 | collect->next_aexpr_elt++; | |
1507 | } | |
1508 | ||
c906108c | 1509 | /* tstart command: |
c5aa993b | 1510 | |
c906108c SS |
1511 | Tell target to clear any previous trace experiment. |
1512 | Walk the list of tracepoints, and send them (and their actions) | |
1513 | to the target. If no errors, | |
1514 | Tell target to start a new trace experiment. */ | |
1515 | ||
1516 | static void | |
fba45db2 | 1517 | trace_start_command (char *args, int from_tty) |
d183932d | 1518 | { |
f61e138d | 1519 | char buf[2048]; |
1042e4c0 SS |
1520 | VEC(breakpoint_p) *tp_vec = NULL; |
1521 | int ix; | |
1522 | struct breakpoint *t; | |
f61e138d | 1523 | struct trace_state_variable *tsv; |
d5551862 | 1524 | int any_downloaded = 0; |
c906108c | 1525 | |
d183932d | 1526 | dont_repeat (); /* Like "run", dangerous to repeat accidentally. */ |
c5aa993b | 1527 | |
35b1e5cc SS |
1528 | target_trace_init (); |
1529 | ||
1530 | tp_vec = all_tracepoints (); | |
1531 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
7a697b8d | 1532 | { |
35b1e5cc SS |
1533 | t->number_on_target = 0; |
1534 | target_download_tracepoint (t); | |
1535 | t->number_on_target = t->number; | |
1536 | any_downloaded = 1; | |
7a697b8d | 1537 | } |
35b1e5cc SS |
1538 | VEC_free (breakpoint_p, tp_vec); |
1539 | ||
1540 | /* No point in tracing without any tracepoints... */ | |
1541 | if (!any_downloaded) | |
1542 | error ("No tracepoints downloaded, not starting trace"); | |
1543 | ||
00bf0b85 | 1544 | /* Send down all the trace state variables too. */ |
35b1e5cc | 1545 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) |
782b2b07 | 1546 | { |
00bf0b85 | 1547 | target_download_trace_state_variable (tsv); |
782b2b07 | 1548 | } |
35b1e5cc SS |
1549 | |
1550 | /* Tell target to treat text-like sections as transparent. */ | |
1551 | target_trace_set_readonly_regions (); | |
1042e4c0 | 1552 | |
35b1e5cc SS |
1553 | /* Now insert traps and begin collecting data. */ |
1554 | target_trace_start (); | |
1042e4c0 | 1555 | |
35b1e5cc SS |
1556 | /* Reset our local state. */ |
1557 | set_traceframe_num (-1); | |
1558 | set_tracepoint_num (-1); | |
1559 | set_traceframe_context (NULL); | |
00bf0b85 | 1560 | current_trace_status()->running = 1; |
1042e4c0 SS |
1561 | } |
1562 | ||
c906108c SS |
1563 | /* tstop command */ |
1564 | static void | |
fba45db2 | 1565 | trace_stop_command (char *args, int from_tty) |
d183932d | 1566 | { |
35b1e5cc | 1567 | stop_tracing (); |
c906108c SS |
1568 | } |
1569 | ||
d5551862 SS |
1570 | void |
1571 | stop_tracing () | |
1572 | { | |
35b1e5cc | 1573 | target_trace_stop (); |
00bf0b85 SS |
1574 | /* should change in response to reply? */ |
1575 | current_trace_status ()->running = 0; | |
d5551862 SS |
1576 | } |
1577 | ||
c906108c SS |
1578 | /* tstatus command */ |
1579 | static void | |
fba45db2 | 1580 | trace_status_command (char *args, int from_tty) |
d183932d | 1581 | { |
00bf0b85 SS |
1582 | struct trace_status *ts = current_trace_status (); |
1583 | int status; | |
35b1e5cc | 1584 | |
00bf0b85 SS |
1585 | status = target_get_trace_status (ts); |
1586 | ||
1587 | if (status == -1) | |
1588 | { | |
1589 | if (ts->from_file) | |
1590 | printf_filtered (_("Using a trace file.\n")); | |
1591 | else | |
1592 | { | |
1593 | printf_filtered (_("Trace can not be run on this target.\n")); | |
1594 | return; | |
1595 | } | |
1596 | } | |
1597 | ||
1598 | if (!ts->running_known) | |
1599 | { | |
1600 | printf_filtered (_("Run/stop status is unknown.\n")); | |
1601 | } | |
1602 | else if (ts->running) | |
c906108c | 1603 | { |
35b1e5cc SS |
1604 | printf_filtered (_("Trace is running on the target.\n")); |
1605 | if (disconnected_tracing) | |
1606 | printf_filtered (_("Trace will continue if GDB disconnects.\n")); | |
d3513012 | 1607 | else |
35b1e5cc | 1608 | printf_filtered (_("Trace will stop if GDB disconnects.\n")); |
c906108c SS |
1609 | } |
1610 | else | |
00bf0b85 SS |
1611 | { |
1612 | switch (ts->stop_reason) | |
1613 | { | |
1614 | case trace_never_run: | |
1615 | printf_filtered (_("No trace has been run on the target.\n")); | |
1616 | break; | |
1617 | case tstop_command: | |
1618 | printf_filtered (_("Trace stopped by a tstop command.\n")); | |
1619 | break; | |
1620 | case trace_buffer_full: | |
1621 | printf_filtered (_("Trace stopped because the buffer was full.\n")); | |
1622 | break; | |
1623 | case trace_disconnected: | |
1624 | printf_filtered (_("Trace stopped because of disconnection.\n")); | |
1625 | break; | |
1626 | case tracepoint_passcount: | |
1627 | /* FIXME account for number on target */ | |
1628 | printf_filtered (_("Trace stopped by tracepoint %d.\n"), | |
1629 | ts->stopping_tracepoint); | |
1630 | break; | |
1631 | case trace_stop_reason_unknown: | |
1632 | printf_filtered (_("Trace stopped for an unknown reason.\n")); | |
1633 | break; | |
1634 | default: | |
1635 | printf_filtered (_("Trace stopped for some other reason (%d).\n"), | |
1636 | ts->stop_reason); | |
1637 | break; | |
1638 | } | |
1639 | } | |
1640 | ||
1641 | if (ts->traceframe_count >= 0) | |
1642 | { | |
1643 | printf_filtered (_("Collected %d trace frames.\n"), | |
1644 | ts->traceframe_count); | |
1645 | } | |
1646 | ||
1647 | if (ts->buffer_free) | |
1648 | { | |
98e03262 | 1649 | printf_filtered (_("Trace buffer has %llu bytes free.\n"), |
00bf0b85 SS |
1650 | ts->buffer_free); |
1651 | } | |
35b1e5cc | 1652 | |
00bf0b85 | 1653 | /* Now report on what we're doing with tfind. */ |
35b1e5cc SS |
1654 | if (traceframe_number >= 0) |
1655 | printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"), | |
1656 | traceframe_number, tracepoint_number); | |
1657 | else | |
1658 | printf_filtered (_("Not looking at any trace frame.\n")); | |
c906108c SS |
1659 | } |
1660 | ||
d5551862 SS |
1661 | void |
1662 | disconnect_or_stop_tracing (int from_tty) | |
1663 | { | |
00bf0b85 SS |
1664 | /* It can happen that the target that was tracing went away on its |
1665 | own, and we didn't notice. Get a status update, and if the | |
1666 | current target doesn't even do tracing, then assume it's not | |
1667 | running anymore. */ | |
1668 | if (target_get_trace_status (current_trace_status ()) < 0) | |
1669 | current_trace_status ()->running = 0; | |
1670 | ||
1671 | if (current_trace_status ()->running && from_tty) | |
d5551862 SS |
1672 | { |
1673 | int cont = query (_("Trace is running. Continue tracing after detach? ")); | |
1674 | /* Note that we send the query result without affecting the | |
1675 | user's setting of disconnected_tracing, so that the answer is | |
1676 | a one-time-only. */ | |
1677 | send_disconnected_tracing_value (cont); | |
1678 | ||
1679 | /* Also ensure that we do the equivalent of a tstop command if | |
1680 | tracing is not to continue after the detach. */ | |
1681 | if (!cont) | |
1682 | stop_tracing (); | |
1683 | } | |
1684 | } | |
1685 | ||
d183932d | 1686 | /* Worker function for the various flavors of the tfind command. */ |
c906108c | 1687 | static void |
35b1e5cc SS |
1688 | finish_tfind_command (enum trace_find_type type, int num, |
1689 | ULONGEST addr1, ULONGEST addr2, | |
c2d11a7d | 1690 | int from_tty) |
c906108c SS |
1691 | { |
1692 | int target_frameno = -1, target_tracept = -1; | |
fb14de7b | 1693 | struct frame_id old_frame_id; |
c906108c | 1694 | char *reply; |
d5551862 | 1695 | struct breakpoint *tp; |
c906108c | 1696 | |
fb14de7b | 1697 | old_frame_id = get_frame_id (get_current_frame ()); |
c906108c | 1698 | |
35b1e5cc SS |
1699 | target_frameno = target_trace_find (type, num, addr1, addr2, |
1700 | &target_tracept); | |
1701 | ||
1702 | if (type == tfind_number | |
1703 | && num == -1 | |
1704 | && target_frameno == -1) | |
1705 | { | |
1706 | /* We told the target to get out of tfind mode, and it did. */ | |
1707 | } | |
1708 | else if (target_frameno == -1) | |
1709 | { | |
1710 | /* A request for a non-existant trace frame has failed. | |
1711 | Our response will be different, depending on FROM_TTY: | |
1712 | ||
1713 | If FROM_TTY is true, meaning that this command was | |
1714 | typed interactively by the user, then give an error | |
1715 | and DO NOT change the state of traceframe_number etc. | |
1716 | ||
1717 | However if FROM_TTY is false, meaning that we're either | |
1718 | in a script, a loop, or a user-defined command, then | |
1719 | DON'T give an error, but DO change the state of | |
1720 | traceframe_number etc. to invalid. | |
1721 | ||
1722 | The rationalle is that if you typed the command, you | |
1723 | might just have committed a typo or something, and you'd | |
1724 | like to NOT lose your current debugging state. However | |
1725 | if you're in a user-defined command or especially in a | |
1726 | loop, then you need a way to detect that the command | |
1727 | failed WITHOUT aborting. This allows you to write | |
1728 | scripts that search thru the trace buffer until the end, | |
1729 | and then continue on to do something else. */ | |
1730 | ||
1731 | if (from_tty) | |
1732 | error (_("Target failed to find requested trace frame.")); | |
1733 | else | |
1734 | { | |
1735 | if (info_verbose) | |
1736 | printf_filtered ("End of trace buffer.\n"); | |
1737 | #if 0 /* dubious now? */ | |
1738 | /* The following will not recurse, since it's | |
1739 | special-cased. */ | |
1740 | trace_find_command ("-1", from_tty); | |
1741 | #endif | |
1742 | } | |
1743 | } | |
1744 | ||
d5551862 SS |
1745 | tp = get_tracepoint_by_number_on_target (target_tracept); |
1746 | ||
35f196d9 | 1747 | reinit_frame_cache (); |
c906108c | 1748 | registers_changed (); |
c906108c | 1749 | set_traceframe_num (target_frameno); |
d5551862 | 1750 | set_tracepoint_num (tp ? tp->number : target_tracept); |
c906108c | 1751 | if (target_frameno == -1) |
fb14de7b | 1752 | set_traceframe_context (NULL); |
c906108c | 1753 | else |
fb14de7b | 1754 | set_traceframe_context (get_current_frame ()); |
c906108c | 1755 | |
00bf0b85 SS |
1756 | /* If we're in nonstop mode and getting out of looking at trace |
1757 | frames, there won't be any current frame to go back to and | |
1758 | display. */ | |
1759 | if (from_tty | |
1760 | && (has_stack_frames () || traceframe_number >= 0)) | |
c906108c | 1761 | { |
0faf0076 | 1762 | enum print_what print_what; |
c906108c SS |
1763 | |
1764 | /* NOTE: in immitation of the step command, try to determine | |
d183932d MS |
1765 | whether we have made a transition from one function to |
1766 | another. If so, we'll print the "stack frame" (ie. the new | |
1767 | function and it's arguments) -- otherwise we'll just show the | |
fb14de7b UW |
1768 | new source line. */ |
1769 | ||
1770 | if (frame_id_eq (old_frame_id, | |
1771 | get_frame_id (get_current_frame ()))) | |
0faf0076 | 1772 | print_what = SRC_LINE; |
c906108c | 1773 | else |
0faf0076 | 1774 | print_what = SRC_AND_LOC; |
c906108c | 1775 | |
b04f3ab4 | 1776 | print_stack_frame (get_selected_frame (NULL), 1, print_what); |
c906108c SS |
1777 | do_displays (); |
1778 | } | |
1779 | } | |
1780 | ||
1781 | /* trace_find_command takes a trace frame number n, | |
1782 | sends "QTFrame:<n>" to the target, | |
1783 | and accepts a reply that may contain several optional pieces | |
1784 | of information: a frame number, a tracepoint number, and an | |
1785 | indication of whether this is a trap frame or a stepping frame. | |
1786 | ||
1787 | The minimal response is just "OK" (which indicates that the | |
1788 | target does not give us a frame number or a tracepoint number). | |
1789 | Instead of that, the target may send us a string containing | |
1790 | any combination of: | |
c5aa993b JM |
1791 | F<hexnum> (gives the selected frame number) |
1792 | T<hexnum> (gives the selected tracepoint number) | |
1793 | */ | |
c906108c SS |
1794 | |
1795 | /* tfind command */ | |
1796 | static void | |
fba45db2 | 1797 | trace_find_command (char *args, int from_tty) |
d183932d | 1798 | { /* this should only be called with a numeric argument */ |
c906108c | 1799 | int frameno = -1; |
c906108c | 1800 | |
00bf0b85 | 1801 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc SS |
1802 | error ("May not look at trace frames while trace is running."); |
1803 | ||
1804 | if (args == 0 || *args == 0) | |
1805 | { /* TFIND with no args means find NEXT trace frame. */ | |
1806 | if (traceframe_number == -1) | |
1807 | frameno = 0; /* "next" is first one */ | |
1808 | else | |
1809 | frameno = traceframe_number + 1; | |
1810 | } | |
1811 | else if (0 == strcmp (args, "-")) | |
c906108c | 1812 | { |
35b1e5cc SS |
1813 | if (traceframe_number == -1) |
1814 | error (_("not debugging trace buffer")); | |
1815 | else if (from_tty && traceframe_number == 0) | |
1816 | error (_("already at start of trace buffer")); | |
1817 | ||
1818 | frameno = traceframe_number - 1; | |
1819 | } | |
1820 | /* A hack to work around eval's need for fp to have been collected. */ | |
1821 | else if (0 == strcmp (args, "-1")) | |
1822 | frameno = -1; | |
1823 | else | |
1824 | frameno = parse_and_eval_long (args); | |
c906108c | 1825 | |
35b1e5cc SS |
1826 | if (frameno < -1) |
1827 | error (_("invalid input (%d is less than zero)"), frameno); | |
c906108c | 1828 | |
35b1e5cc | 1829 | finish_tfind_command (tfind_number, frameno, 0, 0, from_tty); |
c906108c SS |
1830 | } |
1831 | ||
1832 | /* tfind end */ | |
1833 | static void | |
fba45db2 | 1834 | trace_find_end_command (char *args, int from_tty) |
c906108c SS |
1835 | { |
1836 | trace_find_command ("-1", from_tty); | |
1837 | } | |
1838 | ||
1839 | /* tfind none */ | |
1840 | static void | |
fba45db2 | 1841 | trace_find_none_command (char *args, int from_tty) |
c906108c SS |
1842 | { |
1843 | trace_find_command ("-1", from_tty); | |
1844 | } | |
1845 | ||
1846 | /* tfind start */ | |
1847 | static void | |
fba45db2 | 1848 | trace_find_start_command (char *args, int from_tty) |
c906108c SS |
1849 | { |
1850 | trace_find_command ("0", from_tty); | |
1851 | } | |
1852 | ||
1853 | /* tfind pc command */ | |
1854 | static void | |
fba45db2 | 1855 | trace_find_pc_command (char *args, int from_tty) |
d183932d | 1856 | { |
c906108c | 1857 | CORE_ADDR pc; |
104c1213 | 1858 | char tmp[40]; |
c906108c | 1859 | |
00bf0b85 | 1860 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 1861 | error ("May not look at trace frames while trace is running."); |
c906108c | 1862 | |
35b1e5cc SS |
1863 | if (args == 0 || *args == 0) |
1864 | pc = regcache_read_pc (get_current_regcache ()); | |
c906108c | 1865 | else |
35b1e5cc SS |
1866 | pc = parse_and_eval_address (args); |
1867 | ||
1868 | finish_tfind_command (tfind_pc, 0, pc, 0, from_tty); | |
c906108c SS |
1869 | } |
1870 | ||
1871 | /* tfind tracepoint command */ | |
1872 | static void | |
fba45db2 | 1873 | trace_find_tracepoint_command (char *args, int from_tty) |
d183932d | 1874 | { |
c906108c | 1875 | int tdp; |
d5551862 | 1876 | struct breakpoint *tp; |
c906108c | 1877 | |
00bf0b85 | 1878 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 1879 | error ("May not look at trace frames while trace is running."); |
383e5f85 | 1880 | |
35b1e5cc SS |
1881 | if (args == 0 || *args == 0) |
1882 | { | |
1883 | if (tracepoint_number == -1) | |
1884 | error (_("No current tracepoint -- please supply an argument.")); | |
c906108c | 1885 | else |
35b1e5cc | 1886 | tdp = tracepoint_number; /* default is current TDP */ |
c906108c SS |
1887 | } |
1888 | else | |
35b1e5cc SS |
1889 | tdp = parse_and_eval_long (args); |
1890 | ||
1891 | /* If we have the tracepoint on hand, use the number that the | |
1892 | target knows about (which may be different if we disconnected | |
1893 | and reconnected). */ | |
1894 | tp = get_tracepoint (tdp); | |
1895 | if (tp) | |
1896 | tdp = tp->number_on_target; | |
1897 | ||
1898 | finish_tfind_command (tfind_tp, tdp, 0, 0, from_tty); | |
c906108c SS |
1899 | } |
1900 | ||
1901 | /* TFIND LINE command: | |
c5aa993b | 1902 | |
c906108c | 1903 | This command will take a sourceline for argument, just like BREAK |
d183932d | 1904 | or TRACE (ie. anything that "decode_line_1" can handle). |
c5aa993b | 1905 | |
c906108c SS |
1906 | With no argument, this command will find the next trace frame |
1907 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
1908 | ||
1909 | static void | |
fba45db2 | 1910 | trace_find_line_command (char *args, int from_tty) |
d183932d | 1911 | { |
c906108c SS |
1912 | static CORE_ADDR start_pc, end_pc; |
1913 | struct symtabs_and_lines sals; | |
1914 | struct symtab_and_line sal; | |
c906108c | 1915 | struct cleanup *old_chain; |
104c1213 | 1916 | char startpc_str[40], endpc_str[40]; |
c906108c | 1917 | |
00bf0b85 | 1918 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 1919 | error ("May not look at trace frames while trace is running."); |
5af949e3 | 1920 | |
35b1e5cc SS |
1921 | if (args == 0 || *args == 0) |
1922 | { | |
1923 | sal = find_pc_line (get_frame_pc (get_current_frame ()), 0); | |
1924 | sals.nelts = 1; | |
1925 | sals.sals = (struct symtab_and_line *) | |
1926 | xmalloc (sizeof (struct symtab_and_line)); | |
1927 | sals.sals[0] = sal; | |
1928 | } | |
1929 | else | |
1930 | { | |
1931 | sals = decode_line_spec (args, 1); | |
1932 | sal = sals.sals[0]; | |
1933 | } | |
1934 | ||
1935 | old_chain = make_cleanup (xfree, sals.sals); | |
1936 | if (sal.symtab == 0) | |
1937 | { | |
1938 | printf_filtered ("TFIND: No line number information available"); | |
1939 | if (sal.pc != 0) | |
c906108c | 1940 | { |
35b1e5cc SS |
1941 | /* This is useful for "info line *0x7f34". If we can't |
1942 | tell the user about a source line, at least let them | |
1943 | have the symbolic address. */ | |
1944 | printf_filtered (" for address "); | |
1945 | wrap_here (" "); | |
1946 | print_address (get_current_arch (), sal.pc, gdb_stdout); | |
1947 | printf_filtered (";\n -- will attempt to find by PC. \n"); | |
1948 | } | |
1949 | else | |
1950 | { | |
1951 | printf_filtered (".\n"); | |
1952 | return; /* No line, no PC; what can we do? */ | |
1953 | } | |
c906108c | 1954 | } |
35b1e5cc SS |
1955 | else if (sal.line > 0 |
1956 | && find_line_pc_range (sal, &start_pc, &end_pc)) | |
1957 | { | |
1958 | if (start_pc == end_pc) | |
1959 | { | |
1960 | printf_filtered ("Line %d of \"%s\"", | |
1961 | sal.line, sal.symtab->filename); | |
1962 | wrap_here (" "); | |
1963 | printf_filtered (" is at address "); | |
1964 | print_address (get_current_arch (), start_pc, gdb_stdout); | |
1965 | wrap_here (" "); | |
1966 | printf_filtered (" but contains no code.\n"); | |
1967 | sal = find_pc_line (start_pc, 0); | |
1968 | if (sal.line > 0 | |
1969 | && find_line_pc_range (sal, &start_pc, &end_pc) | |
1970 | && start_pc != end_pc) | |
1971 | printf_filtered ("Attempting to find line %d instead.\n", | |
1972 | sal.line); | |
1973 | else | |
1974 | error (_("Cannot find a good line.")); | |
1975 | } | |
1976 | } | |
1977 | else | |
1978 | /* Is there any case in which we get here, and have an address | |
1979 | which the user would want to see? If we have debugging | |
1980 | symbols and no line numbers? */ | |
1981 | error (_("Line number %d is out of range for \"%s\"."), | |
1982 | sal.line, sal.symtab->filename); | |
1983 | ||
1984 | /* Find within range of stated line. */ | |
1985 | if (args && *args) | |
1986 | finish_tfind_command (tfind_range, 0, start_pc, end_pc - 1, from_tty); | |
c906108c | 1987 | else |
35b1e5cc SS |
1988 | finish_tfind_command (tfind_outside, 0, start_pc, end_pc - 1, from_tty); |
1989 | do_cleanups (old_chain); | |
c906108c SS |
1990 | } |
1991 | ||
1992 | /* tfind range command */ | |
1993 | static void | |
fba45db2 | 1994 | trace_find_range_command (char *args, int from_tty) |
104c1213 | 1995 | { |
c906108c | 1996 | static CORE_ADDR start, stop; |
104c1213 | 1997 | char start_str[40], stop_str[40]; |
c906108c SS |
1998 | char *tmp; |
1999 | ||
00bf0b85 | 2000 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 2001 | error ("May not look at trace frames while trace is running."); |
c906108c | 2002 | |
35b1e5cc SS |
2003 | if (args == 0 || *args == 0) |
2004 | { /* XXX FIXME: what should default behavior be? */ | |
2005 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); | |
2006 | return; | |
2007 | } | |
c906108c | 2008 | |
35b1e5cc SS |
2009 | if (0 != (tmp = strchr (args, ','))) |
2010 | { | |
2011 | *tmp++ = '\0'; /* terminate start address */ | |
2012 | while (isspace ((int) *tmp)) | |
2013 | tmp++; | |
2014 | start = parse_and_eval_address (args); | |
2015 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
2016 | } |
2017 | else | |
35b1e5cc SS |
2018 | { /* no explicit end address? */ |
2019 | start = parse_and_eval_address (args); | |
2020 | stop = start + 1; /* ??? */ | |
2021 | } | |
2022 | ||
2023 | finish_tfind_command (tfind_range, 0, start, stop, from_tty); | |
c906108c SS |
2024 | } |
2025 | ||
2026 | /* tfind outside command */ | |
2027 | static void | |
fba45db2 | 2028 | trace_find_outside_command (char *args, int from_tty) |
104c1213 | 2029 | { |
c906108c | 2030 | CORE_ADDR start, stop; |
104c1213 | 2031 | char start_str[40], stop_str[40]; |
c906108c SS |
2032 | char *tmp; |
2033 | ||
00bf0b85 | 2034 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 2035 | error ("May not look at trace frames while trace is running."); |
c906108c | 2036 | |
35b1e5cc SS |
2037 | if (args == 0 || *args == 0) |
2038 | { /* XXX FIXME: what should default behavior be? */ | |
2039 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); | |
2040 | return; | |
2041 | } | |
c906108c | 2042 | |
35b1e5cc SS |
2043 | if (0 != (tmp = strchr (args, ','))) |
2044 | { | |
2045 | *tmp++ = '\0'; /* terminate start address */ | |
2046 | while (isspace ((int) *tmp)) | |
2047 | tmp++; | |
2048 | start = parse_and_eval_address (args); | |
2049 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
2050 | } |
2051 | else | |
35b1e5cc SS |
2052 | { /* no explicit end address? */ |
2053 | start = parse_and_eval_address (args); | |
2054 | stop = start + 1; /* ??? */ | |
2055 | } | |
2056 | ||
2057 | finish_tfind_command (tfind_outside, 0, start, stop, from_tty); | |
c906108c SS |
2058 | } |
2059 | ||
c906108c SS |
2060 | /* info scope command: list the locals for a scope. */ |
2061 | static void | |
fba45db2 | 2062 | scope_info (char *args, int from_tty) |
c906108c | 2063 | { |
c906108c SS |
2064 | struct symtabs_and_lines sals; |
2065 | struct symbol *sym; | |
2066 | struct minimal_symbol *msym; | |
2067 | struct block *block; | |
2068 | char **canonical, *symname, *save_args = args; | |
de4f826b DC |
2069 | struct dict_iterator iter; |
2070 | int j, count = 0; | |
768a979c UW |
2071 | struct gdbarch *gdbarch; |
2072 | int regno; | |
c906108c SS |
2073 | |
2074 | if (args == 0 || *args == 0) | |
8a3fe4f8 | 2075 | error (_("requires an argument (function, line or *addr) to define a scope")); |
c906108c | 2076 | |
68219205 | 2077 | sals = decode_line_1 (&args, 1, NULL, 0, &canonical, NULL); |
c906108c | 2078 | if (sals.nelts == 0) |
450bd37b | 2079 | return; /* presumably decode_line_1 has already warned */ |
c906108c SS |
2080 | |
2081 | /* Resolve line numbers to PC */ | |
2082 | resolve_sal_pc (&sals.sals[0]); | |
2083 | block = block_for_pc (sals.sals[0].pc); | |
2084 | ||
2085 | while (block != 0) | |
2086 | { | |
c5aa993b | 2087 | QUIT; /* allow user to bail out with ^C */ |
de4f826b | 2088 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 2089 | { |
c5aa993b | 2090 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
2091 | if (count == 0) |
2092 | printf_filtered ("Scope for %s:\n", save_args); | |
2093 | count++; | |
e88c90f2 | 2094 | |
3567439c | 2095 | symname = SYMBOL_PRINT_NAME (sym); |
c906108c | 2096 | if (symname == NULL || *symname == '\0') |
c5aa993b | 2097 | continue; /* probably botched, certainly useless */ |
c906108c | 2098 | |
768a979c UW |
2099 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
2100 | ||
c906108c | 2101 | printf_filtered ("Symbol %s is ", symname); |
c5aa993b JM |
2102 | switch (SYMBOL_CLASS (sym)) |
2103 | { | |
2104 | default: | |
2105 | case LOC_UNDEF: /* messed up symbol? */ | |
2106 | printf_filtered ("a bogus symbol, class %d.\n", | |
2107 | SYMBOL_CLASS (sym)); | |
2108 | count--; /* don't count this one */ | |
2109 | continue; | |
2110 | case LOC_CONST: | |
104c1213 | 2111 | printf_filtered ("a constant with value %ld (0x%lx)", |
c5aa993b JM |
2112 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); |
2113 | break; | |
2114 | case LOC_CONST_BYTES: | |
2115 | printf_filtered ("constant bytes: "); | |
2116 | if (SYMBOL_TYPE (sym)) | |
2117 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) | |
2118 | fprintf_filtered (gdb_stdout, " %02x", | |
2119 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); | |
2120 | break; | |
2121 | case LOC_STATIC: | |
2122 | printf_filtered ("in static storage at address "); | |
5af949e3 UW |
2123 | printf_filtered ("%s", paddress (gdbarch, |
2124 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2125 | break; |
2126 | case LOC_REGISTER: | |
768a979c UW |
2127 | /* GDBARCH is the architecture associated with the objfile |
2128 | the symbol is defined in; the target architecture may be | |
2129 | different, and may provide additional registers. However, | |
2130 | we do not know the target architecture at this point. | |
2131 | We assume the objfile architecture will contain all the | |
2132 | standard registers that occur in debug info in that | |
2133 | objfile. */ | |
2134 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
2135 | ||
2a2d4dc3 AS |
2136 | if (SYMBOL_IS_ARGUMENT (sym)) |
2137 | printf_filtered ("an argument in register $%s", | |
768a979c | 2138 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
2139 | else |
2140 | printf_filtered ("a local variable in register $%s", | |
768a979c | 2141 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2142 | break; |
2143 | case LOC_ARG: | |
c5aa993b JM |
2144 | printf_filtered ("an argument at stack/frame offset %ld", |
2145 | SYMBOL_VALUE (sym)); | |
2146 | break; | |
2147 | case LOC_LOCAL: | |
2148 | printf_filtered ("a local variable at frame offset %ld", | |
2149 | SYMBOL_VALUE (sym)); | |
2150 | break; | |
2151 | case LOC_REF_ARG: | |
2152 | printf_filtered ("a reference argument at offset %ld", | |
2153 | SYMBOL_VALUE (sym)); | |
2154 | break; | |
c5aa993b | 2155 | case LOC_REGPARM_ADDR: |
768a979c UW |
2156 | /* Note comment at LOC_REGISTER. */ |
2157 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
c5aa993b | 2158 | printf_filtered ("the address of an argument, in register $%s", |
768a979c | 2159 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2160 | break; |
2161 | case LOC_TYPEDEF: | |
2162 | printf_filtered ("a typedef.\n"); | |
2163 | continue; | |
2164 | case LOC_LABEL: | |
2165 | printf_filtered ("a label at address "); | |
5af949e3 UW |
2166 | printf_filtered ("%s", paddress (gdbarch, |
2167 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2168 | break; |
2169 | case LOC_BLOCK: | |
2170 | printf_filtered ("a function at address "); | |
5af949e3 UW |
2171 | printf_filtered ("%s", |
2172 | paddress (gdbarch, BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))); | |
c5aa993b | 2173 | break; |
c5aa993b | 2174 | case LOC_UNRESOLVED: |
3567439c | 2175 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), |
450bd37b | 2176 | NULL, NULL); |
c5aa993b JM |
2177 | if (msym == NULL) |
2178 | printf_filtered ("Unresolved Static"); | |
2179 | else | |
2180 | { | |
2181 | printf_filtered ("static storage at address "); | |
5af949e3 UW |
2182 | printf_filtered ("%s", |
2183 | paddress (gdbarch, SYMBOL_VALUE_ADDRESS (msym))); | |
c5aa993b JM |
2184 | } |
2185 | break; | |
2186 | case LOC_OPTIMIZED_OUT: | |
2187 | printf_filtered ("optimized out.\n"); | |
2188 | continue; | |
450bd37b | 2189 | case LOC_COMPUTED: |
768a979c | 2190 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, gdb_stdout); |
450bd37b | 2191 | break; |
c5aa993b | 2192 | } |
c906108c | 2193 | if (SYMBOL_TYPE (sym)) |
c5aa993b | 2194 | printf_filtered (", length %d.\n", |
450bd37b | 2195 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); |
c906108c SS |
2196 | } |
2197 | if (BLOCK_FUNCTION (block)) | |
2198 | break; | |
2199 | else | |
2200 | block = BLOCK_SUPERBLOCK (block); | |
2201 | } | |
2202 | if (count <= 0) | |
2203 | printf_filtered ("Scope for %s contains no locals or arguments.\n", | |
2204 | save_args); | |
2205 | } | |
2206 | ||
2207 | /* worker function (cleanup) */ | |
2208 | static void | |
710b33bd | 2209 | replace_comma (void *data) |
c906108c | 2210 | { |
710b33bd | 2211 | char *comma = data; |
c906108c SS |
2212 | *comma = ','; |
2213 | } | |
2214 | ||
2215 | /* tdump command */ | |
2216 | static void | |
fba45db2 | 2217 | trace_dump_command (char *args, int from_tty) |
c906108c | 2218 | { |
515630c5 UW |
2219 | struct regcache *regcache; |
2220 | struct gdbarch *gdbarch; | |
1042e4c0 | 2221 | struct breakpoint *t; |
c906108c | 2222 | struct action_line *action; |
c5aa993b JM |
2223 | char *action_exp, *next_comma; |
2224 | struct cleanup *old_cleanups; | |
2225 | int stepping_actions = 0; | |
2226 | int stepping_frame = 0; | |
c906108c | 2227 | |
c906108c SS |
2228 | if (tracepoint_number == -1) |
2229 | { | |
8a3fe4f8 | 2230 | warning (_("No current trace frame.")); |
c906108c SS |
2231 | return; |
2232 | } | |
2233 | ||
1042e4c0 | 2234 | t = get_tracepoint (tracepoint_number); |
c906108c SS |
2235 | |
2236 | if (t == NULL) | |
8a3fe4f8 | 2237 | error (_("No known tracepoint matches 'current' tracepoint #%d."), |
c906108c SS |
2238 | tracepoint_number); |
2239 | ||
2240 | old_cleanups = make_cleanup (null_cleanup, NULL); | |
2241 | ||
c5aa993b | 2242 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", |
c906108c SS |
2243 | tracepoint_number, traceframe_number); |
2244 | ||
2245 | /* The current frame is a trap frame if the frame PC is equal | |
2246 | to the tracepoint PC. If not, then the current frame was | |
2247 | collected during single-stepping. */ | |
2248 | ||
515630c5 UW |
2249 | regcache = get_current_regcache (); |
2250 | gdbarch = get_regcache_arch (regcache); | |
2251 | ||
6b6218c5 | 2252 | stepping_frame = (t->loc->address != (regcache_read_pc (regcache))); |
c906108c SS |
2253 | |
2254 | for (action = t->actions; action; action = action->next) | |
2255 | { | |
2256 | struct cmd_list_element *cmd; | |
2257 | ||
c5aa993b | 2258 | QUIT; /* allow user to bail out with ^C */ |
c906108c | 2259 | action_exp = action->action; |
104c1213 | 2260 | while (isspace ((int) *action_exp)) |
c906108c SS |
2261 | action_exp++; |
2262 | ||
2263 | /* The collection actions to be done while stepping are | |
c5aa993b | 2264 | bracketed by the commands "while-stepping" and "end". */ |
c906108c SS |
2265 | |
2266 | if (*action_exp == '#') /* comment line */ | |
2267 | continue; | |
2268 | ||
2269 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
2270 | if (cmd == 0) | |
8a3fe4f8 | 2271 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 2272 | |
bbaca940 | 2273 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 2274 | stepping_actions = 1; |
bbaca940 | 2275 | else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand)) |
c906108c | 2276 | stepping_actions = 0; |
bbaca940 | 2277 | else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c SS |
2278 | { |
2279 | /* Display the collected data. | |
d183932d MS |
2280 | For the trap frame, display only what was collected at |
2281 | the trap. Likewise for stepping frames, display only | |
2282 | what was collected while stepping. This means that the | |
2283 | two boolean variables, STEPPING_FRAME and | |
2284 | STEPPING_ACTIONS should be equal. */ | |
c906108c SS |
2285 | if (stepping_frame == stepping_actions) |
2286 | { | |
c5aa993b JM |
2287 | do |
2288 | { /* repeat over a comma-separated list */ | |
2289 | QUIT; /* allow user to bail out with ^C */ | |
2290 | if (*action_exp == ',') | |
2291 | action_exp++; | |
104c1213 | 2292 | while (isspace ((int) *action_exp)) |
c5aa993b JM |
2293 | action_exp++; |
2294 | ||
2295 | next_comma = strchr (action_exp, ','); | |
2296 | ||
2297 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2298 | registers_info (NULL, from_tty); | |
2299 | else if (0 == strncasecmp (action_exp, "$loc", 4)) | |
2300 | locals_info (NULL, from_tty); | |
2301 | else if (0 == strncasecmp (action_exp, "$arg", 4)) | |
2302 | args_info (NULL, from_tty); | |
2303 | else | |
2304 | { /* variable */ | |
2305 | if (next_comma) | |
2306 | { | |
2307 | make_cleanup (replace_comma, next_comma); | |
2308 | *next_comma = '\0'; | |
2309 | } | |
2310 | printf_filtered ("%s = ", action_exp); | |
2311 | output_command (action_exp, from_tty); | |
2312 | printf_filtered ("\n"); | |
2313 | } | |
2314 | if (next_comma) | |
2315 | *next_comma = ','; | |
2316 | action_exp = next_comma; | |
2317 | } | |
2318 | while (action_exp && *action_exp == ','); | |
c906108c SS |
2319 | } |
2320 | } | |
2321 | } | |
2322 | discard_cleanups (old_cleanups); | |
2323 | } | |
2324 | ||
00bf0b85 SS |
2325 | extern int trace_regblock_size; |
2326 | ||
2327 | static void | |
2328 | trace_save_command (char *args, int from_tty) | |
2329 | { | |
2330 | char **argv; | |
2331 | char *filename = NULL, *pathname; | |
2332 | int target_does_save = 0; | |
2333 | struct cleanup *cleanup; | |
2334 | struct trace_status *ts = current_trace_status (); | |
2335 | int err, status; | |
2336 | FILE *fp; | |
2337 | struct uploaded_tp *uploaded_tps = NULL, *utp; | |
2338 | struct uploaded_tsv *uploaded_tsvs = NULL, *utsv; | |
2339 | int a; | |
2340 | LONGEST gotten = 0; | |
2341 | ULONGEST offset = 0; | |
2342 | #define MAX_TRACE_UPLOAD 2000 | |
2343 | gdb_byte buf[MAX_TRACE_UPLOAD]; | |
98e03262 | 2344 | int written; |
00bf0b85 SS |
2345 | |
2346 | if (args == NULL) | |
2347 | error_no_arg (_("file in which to save trace data")); | |
2348 | ||
2349 | argv = gdb_buildargv (args); | |
2350 | make_cleanup_freeargv (argv); | |
2351 | ||
2352 | for (; *argv; ++argv) | |
2353 | { | |
2354 | if (strcmp (*argv, "-r") == 0) | |
2355 | target_does_save = 1; | |
2356 | else if (**argv == '-') | |
2357 | error (_("unknown option `%s'"), *argv); | |
2358 | else | |
2359 | filename = *argv; | |
2360 | } | |
2361 | ||
2362 | if (!filename) | |
2363 | error_no_arg (_("file in which to save trace data")); | |
2364 | ||
2365 | /* If the target is to save the data to a file on its own, then just | |
2366 | send the command and be done with it. */ | |
2367 | if (target_does_save) | |
2368 | { | |
2369 | err = target_save_trace_data (filename); | |
2370 | if (err < 0) | |
2371 | error (_("Target failed to save trace data to '%s'."), | |
2372 | filename); | |
2373 | return; | |
2374 | } | |
2375 | ||
2376 | /* Get the trace status first before opening the file, so if the | |
2377 | target is losing, we can get out without touching files. */ | |
2378 | status = target_get_trace_status (ts); | |
2379 | ||
2380 | pathname = tilde_expand (args); | |
2381 | cleanup = make_cleanup (xfree, pathname); | |
2382 | ||
2383 | fp = fopen (pathname, "w"); | |
2384 | if (!fp) | |
2385 | error (_("Unable to open file '%s' for saving trace data (%s)"), | |
2386 | args, safe_strerror (errno)); | |
2387 | make_cleanup_fclose (fp); | |
2388 | ||
2389 | /* Write a file header, with a high-bit-set char to indicate a | |
2390 | binary file, plus a hint as what this file is, and a version | |
2391 | number in case of future needs. */ | |
98e03262 SS |
2392 | written = fwrite ("\x7fTRACE0\n", 8, 1, fp); |
2393 | if (written < 8) | |
2394 | perror_with_name (pathname); | |
00bf0b85 SS |
2395 | |
2396 | /* Write descriptive info. */ | |
2397 | ||
2398 | /* Write out the size of a register block. */ | |
2399 | fprintf (fp, "R %x\n", trace_regblock_size); | |
2400 | ||
2401 | /* Write out status of the tracing run (aka "tstatus" info). */ | |
98e03262 | 2402 | fprintf (fp, "status %c;%s:%x;tframes:%x;tfree:%llx\n", |
00bf0b85 SS |
2403 | (ts->running ? '1' : '0'), |
2404 | stop_reason_names[ts->stop_reason], ts->stopping_tracepoint, | |
98e03262 | 2405 | ts->traceframe_count, ts->buffer_free); |
00bf0b85 SS |
2406 | |
2407 | /* Note that we want to upload tracepoints and save those, rather | |
2408 | than simply writing out the local ones, because the user may have | |
2409 | changed tracepoints in GDB in preparation for a future tracing | |
2410 | run, or maybe just mass-deleted all types of breakpoints as part | |
2411 | of cleaning up. So as not to contaminate the session, leave the | |
2412 | data in its uploaded form, don't make into real tracepoints. */ | |
2413 | ||
2414 | /* Get trace state variables first, they may be checked when parsing | |
2415 | uploaded commands. */ | |
2416 | ||
2417 | target_upload_trace_state_variables (&uploaded_tsvs); | |
2418 | ||
2419 | for (utsv = uploaded_tsvs; utsv; utsv = utsv->next) | |
2420 | { | |
2421 | char *buf = ""; | |
2422 | ||
2423 | if (utsv->name) | |
2424 | { | |
2425 | buf = (char *) xmalloc (strlen (utsv->name) * 2 + 1); | |
2426 | bin2hex ((gdb_byte *) (utsv->name), buf, 0); | |
2427 | } | |
2428 | ||
2429 | fprintf (fp, "tsv %x:%s:%x:%s\n", | |
2430 | utsv->number, phex_nz (utsv->initial_value, 8), | |
2431 | utsv->builtin, buf); | |
2432 | ||
2433 | if (utsv->name) | |
2434 | xfree (buf); | |
2435 | } | |
2436 | ||
2437 | free_uploaded_tsvs (&uploaded_tsvs); | |
2438 | ||
2439 | target_upload_tracepoints (&uploaded_tps); | |
2440 | ||
2441 | for (utp = uploaded_tps; utp; utp = utp->next) | |
2442 | { | |
2443 | fprintf (fp, "tp T%x:%s:%c:%x:%x", | |
2444 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), | |
2445 | (utp->enabled ? 'E' : 'D'), utp->step, utp->pass); | |
2446 | if (utp->type == bp_fast_tracepoint) | |
2447 | fprintf (fp, ":F%x", utp->orig_size); | |
2448 | if (utp->cond) | |
2449 | fprintf (fp, ":X%x,%s", (unsigned int) strlen (utp->cond) / 2, | |
2450 | utp->cond); | |
2451 | fprintf (fp, "\n"); | |
2452 | for (a = 0; a < utp->numactions; ++a) | |
2453 | fprintf (fp, "tp A%x:%s:%s\n", | |
2454 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), | |
2455 | utp->actions[a]); | |
2456 | for (a = 0; a < utp->num_step_actions; ++a) | |
2457 | fprintf (fp, "tp S%x:%s:%s\n", | |
2458 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), | |
2459 | utp->step_actions[a]); | |
2460 | } | |
2461 | ||
2462 | free_uploaded_tps (&uploaded_tps); | |
2463 | ||
2464 | /* Mark the end of the definition section. */ | |
2465 | fprintf (fp, "\n"); | |
2466 | ||
2467 | /* Get and write the trace data proper. We ask for big blocks, in | |
2468 | the hopes of efficiency, but will take less if the target has | |
2469 | packet size limitations or some such. */ | |
2470 | while (1) | |
2471 | { | |
2472 | gotten = target_get_raw_trace_data (buf, offset, MAX_TRACE_UPLOAD); | |
2473 | if (gotten < 0) | |
2474 | error (_("Failure to get requested trace buffer data")); | |
2475 | /* No more data is forthcoming, we're done. */ | |
2476 | if (gotten == 0) | |
2477 | break; | |
98e03262 SS |
2478 | written = fwrite (buf, gotten, 1, fp); |
2479 | if (written < gotten) | |
2480 | perror_with_name (pathname); | |
00bf0b85 SS |
2481 | offset += gotten; |
2482 | } | |
2483 | ||
2484 | /* Mark the end of trace data. */ | |
98e03262 SS |
2485 | written = fwrite (&gotten, 4, 1, fp); |
2486 | if (written < 4) | |
2487 | perror_with_name (pathname); | |
00bf0b85 SS |
2488 | |
2489 | do_cleanups (cleanup); | |
2490 | if (from_tty) | |
2491 | printf_filtered (_("Trace data saved to file '%s'.\n"), args); | |
2492 | } | |
2493 | ||
d5551862 SS |
2494 | /* Tell the target what to do with an ongoing tracing run if GDB |
2495 | disconnects for some reason. */ | |
2496 | ||
2497 | void | |
2498 | send_disconnected_tracing_value (int value) | |
2499 | { | |
35b1e5cc | 2500 | target_set_disconnected_tracing (value); |
d5551862 SS |
2501 | } |
2502 | ||
2503 | static void | |
2504 | set_disconnected_tracing (char *args, int from_tty, | |
2505 | struct cmd_list_element *c) | |
2506 | { | |
2507 | send_disconnected_tracing_value (disconnected_tracing); | |
2508 | } | |
2509 | ||
c906108c SS |
2510 | /* Convert the memory pointed to by mem into hex, placing result in buf. |
2511 | * Return a pointer to the last char put in buf (null) | |
2512 | * "stolen" from sparc-stub.c | |
2513 | */ | |
2514 | ||
c5aa993b | 2515 | static const char hexchars[] = "0123456789abcdef"; |
c906108c | 2516 | |
47b667de AC |
2517 | static char * |
2518 | mem2hex (gdb_byte *mem, char *buf, int count) | |
c906108c | 2519 | { |
47b667de | 2520 | gdb_byte ch; |
c906108c SS |
2521 | |
2522 | while (count-- > 0) | |
2523 | { | |
2524 | ch = *mem++; | |
2525 | ||
2526 | *buf++ = hexchars[ch >> 4]; | |
2527 | *buf++ = hexchars[ch & 0xf]; | |
2528 | } | |
2529 | ||
2530 | *buf = 0; | |
2531 | ||
2532 | return buf; | |
2533 | } | |
2534 | ||
c5aa993b | 2535 | int |
fba45db2 | 2536 | get_traceframe_number (void) |
c906108c | 2537 | { |
c5aa993b | 2538 | return traceframe_number; |
c906108c SS |
2539 | } |
2540 | ||
00bf0b85 SS |
2541 | |
2542 | /* Given a number and address, return an uploaded tracepoint with that | |
2543 | number, creating if necessary. */ | |
2544 | ||
2545 | struct uploaded_tp * | |
2546 | get_uploaded_tp (int num, ULONGEST addr, struct uploaded_tp **utpp) | |
2547 | { | |
2548 | struct uploaded_tp *utp; | |
2549 | ||
2550 | for (utp = *utpp; utp; utp = utp->next) | |
2551 | if (utp->number == num && utp->addr == addr) | |
2552 | return utp; | |
2553 | utp = (struct uploaded_tp *) xmalloc (sizeof (struct uploaded_tp)); | |
2554 | memset (utp, 0, sizeof (struct uploaded_tp)); | |
2555 | utp->number = num; | |
2556 | utp->addr = addr; | |
2557 | utp->next = *utpp; | |
2558 | *utpp = utp; | |
2559 | return utp; | |
2560 | } | |
2561 | ||
2562 | static void | |
2563 | free_uploaded_tps (struct uploaded_tp **utpp) | |
2564 | { | |
2565 | struct uploaded_tp *next_one; | |
2566 | ||
2567 | while (*utpp) | |
2568 | { | |
2569 | next_one = (*utpp)->next; | |
2570 | xfree (*utpp); | |
2571 | *utpp = next_one; | |
2572 | } | |
2573 | } | |
2574 | ||
2575 | /* Given a number and address, return an uploaded tracepoint with that | |
2576 | number, creating if necessary. */ | |
2577 | ||
2578 | struct uploaded_tsv * | |
2579 | get_uploaded_tsv (int num, struct uploaded_tsv **utsvp) | |
2580 | { | |
2581 | struct uploaded_tsv *utsv; | |
2582 | ||
2583 | for (utsv = *utsvp; utsv; utsv = utsv->next) | |
2584 | if (utsv->number == num) | |
2585 | return utsv; | |
2586 | utsv = (struct uploaded_tsv *) xmalloc (sizeof (struct uploaded_tsv)); | |
2587 | memset (utsv, 0, sizeof (struct uploaded_tsv)); | |
2588 | utsv->number = num; | |
2589 | utsv->next = *utsvp; | |
2590 | *utsvp = utsv; | |
2591 | return utsv; | |
2592 | } | |
2593 | ||
2594 | static void | |
2595 | free_uploaded_tsvs (struct uploaded_tsv **utsvp) | |
2596 | { | |
2597 | struct uploaded_tsv *next_one; | |
2598 | ||
2599 | while (*utsvp) | |
2600 | { | |
2601 | next_one = (*utsvp)->next; | |
2602 | xfree (*utsvp); | |
2603 | *utsvp = next_one; | |
2604 | } | |
2605 | } | |
2606 | ||
2607 | /* Look for an existing tracepoint that seems similar enough to the | |
2608 | uploaded one. Enablement isn't compared, because the user can | |
2609 | toggle that freely, and may have done so in anticipation of the | |
2610 | next trace run. */ | |
2611 | ||
2612 | struct breakpoint * | |
2613 | find_matching_tracepoint (struct uploaded_tp *utp) | |
2614 | { | |
2615 | VEC(breakpoint_p) *tp_vec = all_tracepoints (); | |
2616 | int ix; | |
2617 | struct breakpoint *t; | |
2618 | struct bp_location *loc; | |
2619 | ||
2620 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
2621 | { | |
2622 | if (t->type == utp->type | |
2623 | && t->step_count == utp->step | |
2624 | && t->pass_count == utp->pass | |
2625 | /* FIXME also test conditionals and actions */ | |
2626 | ) | |
2627 | { | |
2628 | /* Scan the locations for an address match. */ | |
2629 | for (loc = t->loc; loc; loc = loc->next) | |
2630 | { | |
2631 | if (loc->address == utp->addr) | |
2632 | return t; | |
2633 | } | |
2634 | } | |
2635 | } | |
2636 | return NULL; | |
2637 | } | |
2638 | ||
2639 | /* Given a list of tracepoints uploaded from a target, attempt to | |
2640 | match them up with existing tracepoints, and create new ones if not | |
2641 | found. */ | |
2642 | ||
2643 | void | |
2644 | merge_uploaded_tracepoints (struct uploaded_tp **uploaded_tps) | |
2645 | { | |
2646 | struct uploaded_tp *utp; | |
2647 | struct breakpoint *t; | |
2648 | ||
2649 | /* Look for GDB tracepoints that match up with our uploaded versions. */ | |
2650 | for (utp = *uploaded_tps; utp; utp = utp->next) | |
2651 | { | |
2652 | t = find_matching_tracepoint (utp); | |
2653 | if (t) | |
2654 | printf_filtered (_("Assuming tracepoint %d is same as target's tracepoint %d at %s.\n"), | |
2655 | t->number, utp->number, paddress (get_current_arch (), utp->addr)); | |
2656 | else | |
2657 | { | |
2658 | t = create_tracepoint_from_upload (utp); | |
2659 | if (t) | |
2660 | printf_filtered (_("Created tracepoint %d for target's tracepoint %d at %s.\n"), | |
2661 | t->number, utp->number, paddress (get_current_arch (), utp->addr)); | |
2662 | else | |
2663 | printf_filtered (_("Failed to create tracepoint for target's tracepoint %d at %s, skipping it.\n"), | |
2664 | utp->number, paddress (get_current_arch (), utp->addr)); | |
2665 | } | |
2666 | /* Whether found or created, record the number used by the | |
2667 | target, to help with mapping target tracepoints back to their | |
2668 | counterparts here. */ | |
2669 | if (t) | |
2670 | t->number_on_target = utp->number; | |
2671 | } | |
2672 | ||
2673 | free_uploaded_tps (uploaded_tps); | |
2674 | } | |
2675 | ||
2676 | /* Trace state variables don't have much to identify them beyond their | |
2677 | name, so just use that to detect matches. */ | |
2678 | ||
2679 | struct trace_state_variable * | |
2680 | find_matching_tsv (struct uploaded_tsv *utsv) | |
2681 | { | |
2682 | if (!utsv->name) | |
2683 | return NULL; | |
2684 | ||
2685 | return find_trace_state_variable (utsv->name); | |
2686 | } | |
2687 | ||
2688 | struct trace_state_variable * | |
2689 | create_tsv_from_upload (struct uploaded_tsv *utsv) | |
2690 | { | |
2691 | const char *namebase; | |
2692 | char buf[20]; | |
2693 | int try_num = 0; | |
2694 | struct trace_state_variable *tsv; | |
2695 | ||
2696 | if (utsv->name) | |
2697 | { | |
2698 | namebase = utsv->name; | |
2699 | sprintf (buf, "%s", namebase); | |
2700 | } | |
2701 | else | |
2702 | { | |
2703 | namebase = "__tsv"; | |
2704 | sprintf (buf, "%s_%d", namebase, try_num++); | |
2705 | } | |
2706 | ||
2707 | /* Fish for a name that is not in use. */ | |
2708 | /* (should check against all internal vars?) */ | |
2709 | while (find_trace_state_variable (buf)) | |
2710 | sprintf (buf, "%s_%d", namebase, try_num++); | |
2711 | ||
2712 | /* We have an available name, create the variable. */ | |
2713 | tsv = create_trace_state_variable (xstrdup (buf)); | |
2714 | tsv->initial_value = utsv->initial_value; | |
2715 | tsv->builtin = utsv->builtin; | |
2716 | ||
2717 | return tsv; | |
2718 | } | |
2719 | ||
2720 | /* Given a list of uploaded trace state variables, try to match them | |
2721 | up with existing variables, or create additional ones. */ | |
2722 | ||
2723 | void | |
2724 | merge_uploaded_trace_state_variables (struct uploaded_tsv **uploaded_tsvs) | |
2725 | { | |
2726 | int ix; | |
2727 | struct uploaded_tsv *utsv; | |
2728 | struct trace_state_variable *tsv; | |
2729 | int highest; | |
2730 | ||
2731 | /* Most likely some numbers will have to be reassigned as part of | |
2732 | the merge, so clear them all in anticipation. */ | |
2733 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
2734 | tsv->number = 0; | |
2735 | ||
2736 | for (utsv = *uploaded_tsvs; utsv; utsv = utsv->next) | |
2737 | { | |
2738 | tsv = find_matching_tsv (utsv); | |
2739 | if (tsv) | |
2740 | printf_filtered (_("Assuming trace state variable $%s is same as target's variable %d.\n"), | |
2741 | tsv->name, utsv->number); | |
2742 | else | |
2743 | { | |
2744 | tsv = create_tsv_from_upload (utsv); | |
2745 | printf_filtered (_("Created trace state variable $%s for target's variable %d.\n"), | |
2746 | tsv->name, utsv->number); | |
2747 | } | |
2748 | /* Give precedence to numberings that come from the target. */ | |
2749 | if (tsv) | |
2750 | tsv->number = utsv->number; | |
2751 | } | |
2752 | ||
2753 | /* Renumber everything that didn't get a target-assigned number. */ | |
2754 | highest = 0; | |
2755 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
2756 | if (tsv->number > highest) | |
2757 | highest = tsv->number; | |
2758 | ||
2759 | ++highest; | |
2760 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
2761 | if (tsv->number == 0) | |
2762 | tsv->number = highest++; | |
2763 | ||
2764 | free_uploaded_tsvs (uploaded_tsvs); | |
2765 | } | |
2766 | ||
2767 | /* target tfile command */ | |
2768 | ||
2769 | struct target_ops tfile_ops; | |
2770 | ||
2771 | /* Fill in tfile_ops with its defined operations and properties. */ | |
2772 | ||
2773 | #define TRACE_HEADER_SIZE 8 | |
2774 | ||
98e03262 | 2775 | char *trace_filename; |
00bf0b85 SS |
2776 | int trace_fd = -1; |
2777 | off_t trace_frames_offset; | |
2778 | off_t cur_offset; | |
2779 | int cur_data_size; | |
2780 | int trace_regblock_size; | |
2781 | ||
2782 | static void tfile_interp_line (char *line, | |
2783 | struct uploaded_tp **utpp, | |
2784 | struct uploaded_tsv **utsvp); | |
2785 | ||
2786 | static void | |
2787 | tfile_open (char *filename, int from_tty) | |
2788 | { | |
2789 | char *temp; | |
2790 | struct cleanup *old_chain; | |
2791 | int flags; | |
2792 | int scratch_chan; | |
2793 | char header[TRACE_HEADER_SIZE]; | |
2794 | char linebuf[1000]; /* should be max remote packet size or so */ | |
2795 | char byte; | |
98e03262 | 2796 | int bytes, i, gotten; |
00bf0b85 SS |
2797 | struct trace_status *ts; |
2798 | struct uploaded_tp *uploaded_tps = NULL; | |
2799 | struct uploaded_tsv *uploaded_tsvs = NULL; | |
2800 | ||
2801 | target_preopen (from_tty); | |
2802 | if (!filename) | |
2803 | error (_("No trace file specified.")); | |
2804 | ||
2805 | filename = tilde_expand (filename); | |
2806 | if (!IS_ABSOLUTE_PATH(filename)) | |
2807 | { | |
2808 | temp = concat (current_directory, "/", filename, (char *)NULL); | |
2809 | xfree (filename); | |
2810 | filename = temp; | |
2811 | } | |
2812 | ||
2813 | old_chain = make_cleanup (xfree, filename); | |
2814 | ||
2815 | flags = O_BINARY | O_LARGEFILE; | |
2816 | flags |= O_RDONLY; | |
2817 | scratch_chan = open (filename, flags, 0); | |
2818 | if (scratch_chan < 0) | |
2819 | perror_with_name (filename); | |
2820 | ||
2821 | /* Looks semi-reasonable. Toss the old trace file and work on the new. */ | |
2822 | ||
2823 | discard_cleanups (old_chain); /* Don't free filename any more */ | |
2824 | unpush_target (&tfile_ops); | |
2825 | ||
2826 | push_target (&tfile_ops); | |
2827 | discard_cleanups (old_chain); | |
2828 | ||
98e03262 | 2829 | trace_filename = xstrdup (filename); |
00bf0b85 SS |
2830 | trace_fd = scratch_chan; |
2831 | ||
2832 | bytes = 0; | |
2833 | /* Read the file header and test for validity. */ | |
98e03262 SS |
2834 | gotten = read (trace_fd, &header, TRACE_HEADER_SIZE); |
2835 | if (gotten < 0) | |
2836 | perror_with_name (trace_filename); | |
2837 | else if (gotten < TRACE_HEADER_SIZE) | |
2838 | error (_("Premature end of file while reading trace file")); | |
2839 | ||
00bf0b85 SS |
2840 | bytes += TRACE_HEADER_SIZE; |
2841 | if (!(header[0] == 0x7f | |
2842 | && (strncmp (header + 1, "TRACE0\n", 7) == 0))) | |
2843 | error (_("File is not a valid trace file.")); | |
2844 | ||
2845 | trace_regblock_size = 0; | |
2846 | ts = current_trace_status (); | |
2847 | /* We know we're working with a file. */ | |
2848 | ts->from_file = 1; | |
2849 | /* Set defaults in case there is no status line. */ | |
2850 | ts->running_known = 0; | |
2851 | ts->stop_reason = trace_stop_reason_unknown; | |
2852 | ts->traceframe_count = -1; | |
2853 | ts->buffer_free = 0; | |
2854 | ||
2855 | /* Read through a section of newline-terminated lines that | |
2856 | define things like tracepoints. */ | |
2857 | i = 0; | |
2858 | while (1) | |
2859 | { | |
98e03262 SS |
2860 | gotten = read (trace_fd, &byte, 1); |
2861 | if (gotten < 0) | |
2862 | perror_with_name (trace_filename); | |
2863 | else if (gotten < 1) | |
2864 | error (_("Premature end of file while reading trace file")); | |
2865 | ||
00bf0b85 SS |
2866 | ++bytes; |
2867 | if (byte == '\n') | |
2868 | { | |
2869 | /* Empty line marks end of the definition section. */ | |
2870 | if (i == 0) | |
2871 | break; | |
2872 | linebuf[i] = '\0'; | |
2873 | i = 0; | |
2874 | tfile_interp_line (linebuf, &uploaded_tps, &uploaded_tsvs); | |
2875 | } | |
2876 | else | |
2877 | linebuf[i++] = byte; | |
2878 | if (i >= 1000) | |
2879 | error (_("Excessively long lines in trace file")); | |
2880 | } | |
2881 | ||
2882 | /* Add the file's tracepoints and variables into the current mix. */ | |
2883 | ||
2884 | merge_uploaded_tracepoints (&uploaded_tps); | |
2885 | ||
2886 | merge_uploaded_trace_state_variables (&uploaded_tsvs); | |
2887 | ||
2888 | /* Record the starting offset of the binary trace data. */ | |
2889 | trace_frames_offset = bytes; | |
2890 | ||
2891 | /* If we don't have a blocksize, we can't interpret the | |
2892 | traceframes. */ | |
2893 | if (trace_regblock_size == 0) | |
2894 | error (_("No register block size recorded in trace file")); | |
2895 | if (ts->traceframe_count <= 0) | |
2896 | { | |
2897 | warning ("No traceframes present in this file."); | |
2898 | return; | |
2899 | } | |
2900 | ||
2901 | #define TFILE_PID (1) | |
2902 | inferior_appeared (current_inferior (), TFILE_PID); | |
2903 | inferior_ptid = pid_to_ptid (TFILE_PID); | |
2904 | add_thread_silent (inferior_ptid); | |
2905 | ||
2906 | post_create_inferior (&tfile_ops, from_tty); | |
2907 | ||
2908 | #if 0 | |
2909 | /* FIXME this will get defined in MI patch submission */ | |
2910 | tfind_1 (tfind_number, 0, 0, 0, 0); | |
2911 | #endif | |
2912 | } | |
2913 | ||
2914 | /* Interpret the given line from the definitions part of the trace | |
2915 | file. */ | |
2916 | ||
2917 | static void | |
2918 | tfile_interp_line (char *line, | |
2919 | struct uploaded_tp **utpp, struct uploaded_tsv **utsvp) | |
2920 | { | |
2921 | char *p = line; | |
2922 | ||
2923 | if (strncmp (p, "R ", strlen ("R ")) == 0) | |
2924 | { | |
2925 | p += strlen ("R "); | |
2926 | trace_regblock_size = strtol (p, &p, 16); | |
2927 | } | |
2928 | else if (strncmp (p, "status ", strlen ("status ")) == 0) | |
2929 | { | |
2930 | p += strlen ("status "); | |
2931 | parse_trace_status (p, current_trace_status ()); | |
2932 | } | |
2933 | else if (strncmp (p, "tp ", strlen ("tp ")) == 0) | |
2934 | { | |
2935 | p += strlen ("tp "); | |
2936 | parse_tracepoint_definition (p, utpp); | |
2937 | } | |
2938 | else if (strncmp (p, "tsv ", strlen ("tsv ")) == 0) | |
2939 | { | |
2940 | p += strlen ("tsv "); | |
2941 | parse_tsv_definition (p, utsvp); | |
2942 | } | |
2943 | else | |
2944 | warning ("Ignoring trace file definition \"%s\"", line); | |
2945 | } | |
2946 | ||
2947 | /* Parse the part of trace status syntax that is shared between | |
2948 | the remote protocol and the trace file reader. */ | |
2949 | ||
2950 | extern char *unpack_varlen_hex (char *buff, ULONGEST *result); | |
2951 | ||
2952 | void | |
2953 | parse_trace_status (char *line, struct trace_status *ts) | |
2954 | { | |
2955 | char *p = line, *p1, *p_temp; | |
2956 | ULONGEST val; | |
2957 | ||
2958 | ts->running_known = 1; | |
2959 | ts->running = (*p++ == '1'); | |
2960 | ts->stop_reason = trace_stop_reason_unknown; | |
2961 | while (*p++) | |
2962 | { | |
2963 | p1 = strchr (p, ':'); | |
2964 | if (p1 == NULL) | |
2965 | error (_("Malformed trace status, at %s\n\ | |
2966 | Status line: '%s'\n"), p, line); | |
2967 | if (strncmp (p, stop_reason_names[trace_buffer_full], p1 - p) == 0) | |
2968 | { | |
2969 | p = unpack_varlen_hex (++p1, &val); | |
2970 | ts->stop_reason = trace_buffer_full; | |
2971 | } | |
2972 | else if (strncmp (p, stop_reason_names[trace_never_run], p1 - p) == 0) | |
2973 | { | |
2974 | p = unpack_varlen_hex (++p1, &val); | |
2975 | ts->stop_reason = trace_never_run; | |
2976 | } | |
2977 | else if (strncmp (p, stop_reason_names[tracepoint_passcount], p1 - p) == 0) | |
2978 | { | |
2979 | p = unpack_varlen_hex (++p1, &val); | |
2980 | ts->stop_reason = tracepoint_passcount; | |
2981 | ts->stopping_tracepoint = val; | |
2982 | } | |
2983 | else if (strncmp (p, stop_reason_names[tstop_command], p1 - p) == 0) | |
2984 | { | |
2985 | p = unpack_varlen_hex (++p1, &val); | |
2986 | ts->stop_reason = tstop_command; | |
2987 | } | |
2988 | if (strncmp (p, "tframes", p1 - p) == 0) | |
2989 | { | |
2990 | p = unpack_varlen_hex (++p1, &val); | |
2991 | ts->traceframe_count = val; | |
2992 | } | |
2993 | if (strncmp (p, "tfree", p1 - p) == 0) | |
2994 | { | |
2995 | p = unpack_varlen_hex (++p1, &val); | |
2996 | ts->buffer_free = val; | |
2997 | } | |
2998 | else | |
2999 | { | |
3000 | /* Silently skip unknown optional info. */ | |
3001 | p_temp = strchr (p1 + 1, ';'); | |
3002 | if (p_temp) | |
3003 | p = p_temp; | |
3004 | else | |
3005 | /* Must be at the end. */ | |
3006 | break; | |
3007 | } | |
3008 | } | |
3009 | } | |
3010 | ||
3011 | /* Given a line of text defining a tracepoint or tracepoint action, parse | |
3012 | it into an "uploaded tracepoint". */ | |
3013 | ||
3014 | void | |
3015 | parse_tracepoint_definition (char *line, struct uploaded_tp **utpp) | |
3016 | { | |
3017 | char *p; | |
3018 | char piece; | |
3019 | ULONGEST num, addr, step, pass, orig_size, xlen; | |
3020 | int enabled, i; | |
3021 | enum bptype type; | |
3022 | char *cond; | |
3023 | struct uploaded_tp *utp = NULL; | |
3024 | ||
3025 | p = line; | |
3026 | /* Both tracepoint and action definitions start with the same number | |
3027 | and address sequence. */ | |
3028 | piece = *p++; | |
3029 | p = unpack_varlen_hex (p, &num); | |
3030 | p++; /* skip a colon */ | |
3031 | p = unpack_varlen_hex (p, &addr); | |
3032 | p++; /* skip a colon */ | |
3033 | if (piece == 'T') | |
3034 | { | |
3035 | enabled = (*p++ == 'E'); | |
3036 | p++; /* skip a colon */ | |
3037 | p = unpack_varlen_hex (p, &step); | |
3038 | p++; /* skip a colon */ | |
3039 | p = unpack_varlen_hex (p, &pass); | |
3040 | type = bp_tracepoint; | |
3041 | cond = NULL; | |
3042 | /* Thumb through optional fields. */ | |
3043 | while (*p == ':') | |
3044 | { | |
3045 | p++; /* skip a colon */ | |
3046 | if (*p == 'F') | |
3047 | { | |
3048 | type = bp_fast_tracepoint; | |
3049 | p++; | |
3050 | p = unpack_varlen_hex (p, &orig_size); | |
3051 | } | |
3052 | else if (*p == 'X') | |
3053 | { | |
3054 | p++; | |
3055 | p = unpack_varlen_hex (p, &xlen); | |
3056 | p++; /* skip a comma */ | |
3057 | cond = (char *) xmalloc (2 * xlen + 1); | |
3058 | strncpy (cond, p, 2 * xlen); | |
3059 | cond[2 * xlen] = '\0'; | |
3060 | p += 2 * xlen; | |
3061 | } | |
3062 | else | |
3063 | warning ("Unrecognized char '%c' in tracepoint definition, skipping rest", *p); | |
3064 | } | |
3065 | utp = get_uploaded_tp (num, addr, utpp); | |
3066 | utp->type = type; | |
3067 | utp->enabled = enabled; | |
3068 | utp->step = step; | |
3069 | utp->pass = pass; | |
3070 | utp->cond = cond; | |
3071 | } | |
3072 | else if (piece == 'A') | |
3073 | { | |
3074 | utp = get_uploaded_tp (num, addr, utpp); | |
3075 | utp->actions[utp->numactions++] = xstrdup (p); | |
3076 | } | |
3077 | else if (piece == 'S') | |
3078 | { | |
3079 | utp = get_uploaded_tp (num, addr, utpp); | |
3080 | utp->step_actions[utp->num_step_actions++] = xstrdup (p); | |
3081 | } | |
3082 | else | |
3083 | { | |
3084 | error ("Invalid tracepoint piece"); | |
3085 | } | |
3086 | } | |
3087 | ||
3088 | /* Convert a textual description of a trace state variable into an | |
3089 | uploaded object. */ | |
3090 | ||
3091 | void | |
3092 | parse_tsv_definition (char *line, struct uploaded_tsv **utsvp) | |
3093 | { | |
3094 | char *p, *buf; | |
3095 | ULONGEST num, initval, builtin; | |
3096 | int end; | |
3097 | struct uploaded_tsv *utsv = NULL; | |
3098 | ||
3099 | buf = alloca (strlen (line)); | |
3100 | ||
3101 | p = line; | |
3102 | p = unpack_varlen_hex (p, &num); | |
3103 | p++; /* skip a colon */ | |
3104 | p = unpack_varlen_hex (p, &initval); | |
3105 | p++; /* skip a colon */ | |
3106 | p = unpack_varlen_hex (p, &builtin); | |
3107 | p++; /* skip a colon */ | |
3108 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3109 | buf[end] = '\0'; | |
3110 | ||
3111 | utsv = get_uploaded_tsv (num, utsvp); | |
3112 | utsv->initial_value = initval; | |
3113 | utsv->builtin = builtin; | |
3114 | utsv->name = xstrdup (buf); | |
3115 | } | |
3116 | ||
3117 | /* Close the trace file and generally clean up. */ | |
3118 | ||
3119 | static void | |
3120 | tfile_close (int quitting) | |
3121 | { | |
3122 | int pid; | |
3123 | ||
3124 | if (trace_fd < 0) | |
3125 | return; | |
3126 | ||
3127 | pid = ptid_get_pid (inferior_ptid); | |
3128 | inferior_ptid = null_ptid; /* Avoid confusion from thread stuff */ | |
3129 | exit_inferior_silent (pid); | |
3130 | ||
3131 | close (trace_fd); | |
3132 | trace_fd = -1; | |
98e03262 SS |
3133 | if (trace_filename) |
3134 | xfree (trace_filename); | |
00bf0b85 SS |
3135 | } |
3136 | ||
3137 | static void | |
3138 | tfile_files_info (struct target_ops *t) | |
3139 | { | |
3140 | /* (it would be useful to mention the name of the file) */ | |
3141 | printf_filtered ("Looking at a trace file.\n"); | |
3142 | } | |
3143 | ||
3144 | /* The trace status for a file is that tracing can never be run. */ | |
3145 | ||
3146 | static int | |
3147 | tfile_get_trace_status (struct trace_status *ts) | |
3148 | { | |
3149 | /* Other bits of trace status were collected as part of opening the | |
3150 | trace files, so nothing to do here. */ | |
3151 | ||
3152 | return -1; | |
3153 | } | |
3154 | ||
3155 | /* Given the position of a traceframe in the file, figure out what | |
3156 | address the frame was collected at. This would normally be the | |
3157 | value of a collected PC register, but if not available, we | |
3158 | improvise. */ | |
3159 | ||
3160 | static ULONGEST | |
3161 | tfile_get_traceframe_address (off_t tframe_offset) | |
3162 | { | |
3163 | ULONGEST addr = 0; | |
3164 | short tpnum; | |
3165 | struct breakpoint *tp; | |
3166 | off_t saved_offset = cur_offset; | |
98e03262 | 3167 | int gotten; |
00bf0b85 SS |
3168 | |
3169 | /* FIXME dig pc out of collected registers */ | |
3170 | ||
3171 | /* Fall back to using tracepoint address. */ | |
3172 | lseek (trace_fd, tframe_offset, SEEK_SET); | |
98e03262 SS |
3173 | gotten = read (trace_fd, &tpnum, 2); |
3174 | if (gotten < 0) | |
3175 | perror_with_name (trace_filename); | |
3176 | else if (gotten < 2) | |
3177 | error (_("Premature end of file while reading trace file")); | |
3178 | ||
00bf0b85 SS |
3179 | tp = get_tracepoint_by_number_on_target (tpnum); |
3180 | if (tp && tp->loc) | |
3181 | addr = tp->loc->address; | |
3182 | ||
3183 | /* Restore our seek position. */ | |
3184 | cur_offset = saved_offset; | |
3185 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3186 | return addr; | |
3187 | } | |
3188 | ||
3189 | /* Given a type of search and some parameters, scan the collection of | |
3190 | traceframes in the file looking for a match. When found, return | |
3191 | both the traceframe and tracepoint number, otherwise -1 for | |
3192 | each. */ | |
3193 | ||
3194 | static int | |
3195 | tfile_trace_find (enum trace_find_type type, int num, | |
3196 | ULONGEST addr1, ULONGEST addr2, int *tpp) | |
3197 | { | |
3198 | short tpnum; | |
98e03262 | 3199 | int tfnum = 0, found = 0, gotten; |
00bf0b85 SS |
3200 | int data_size; |
3201 | struct breakpoint *tp; | |
3202 | off_t offset, tframe_offset; | |
3203 | ULONGEST tfaddr; | |
3204 | ||
3205 | lseek (trace_fd, trace_frames_offset, SEEK_SET); | |
3206 | offset = trace_frames_offset; | |
3207 | while (1) | |
3208 | { | |
3209 | tframe_offset = offset; | |
98e03262 SS |
3210 | gotten = read (trace_fd, &tpnum, 2); |
3211 | if (gotten < 0) | |
3212 | perror_with_name (trace_filename); | |
3213 | else if (gotten < 2) | |
3214 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3215 | offset += 2; |
3216 | if (tpnum == 0) | |
3217 | break; | |
98e03262 SS |
3218 | gotten = read (trace_fd, &data_size, 4); |
3219 | if (gotten < 0) | |
3220 | perror_with_name (trace_filename); | |
3221 | else if (gotten < 4) | |
3222 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3223 | offset += 4; |
3224 | switch (type) | |
3225 | { | |
3226 | case tfind_number: | |
3227 | if (tfnum == num) | |
3228 | found = 1; | |
3229 | break; | |
3230 | case tfind_pc: | |
3231 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3232 | if (tfaddr == addr1) | |
3233 | found = 1; | |
3234 | break; | |
3235 | case tfind_tp: | |
3236 | tp = get_tracepoint (num); | |
3237 | if (tp && tpnum == tp->number_on_target) | |
3238 | found = 1; | |
3239 | break; | |
3240 | case tfind_range: | |
3241 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3242 | if (addr1 <= tfaddr && tfaddr <= addr2) | |
3243 | found = 1; | |
3244 | break; | |
3245 | case tfind_outside: | |
3246 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3247 | if (!(addr1 <= tfaddr && tfaddr <= addr2)) | |
3248 | found = 1; | |
3249 | break; | |
3250 | default: | |
3251 | internal_error (__FILE__, __LINE__, _("unknown tfind type")); | |
3252 | } | |
3253 | if (found) | |
3254 | { | |
3255 | printf_filtered ("Found traceframe %d.\n", tfnum); | |
3256 | if (tpp) | |
3257 | *tpp = tpnum; | |
3258 | cur_offset = offset; | |
3259 | cur_data_size = data_size; | |
3260 | return tfnum; | |
3261 | } | |
3262 | /* Skip past the traceframe's data. */ | |
3263 | lseek (trace_fd, data_size, SEEK_CUR); | |
3264 | offset += data_size; | |
3265 | /* Update our own count of traceframes. */ | |
3266 | ++tfnum; | |
3267 | } | |
3268 | /* Did not find what we were looking for. */ | |
3269 | if (tpp) | |
3270 | *tpp = -1; | |
3271 | return -1; | |
3272 | } | |
3273 | ||
3274 | /* Look for a block of saved registers in the traceframe, and get the | |
3275 | requested register from it. */ | |
3276 | ||
3277 | static void | |
3278 | tfile_fetch_registers (struct target_ops *ops, | |
3279 | struct regcache *regcache, int regno) | |
3280 | { | |
3281 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
3282 | char block_type; | |
98e03262 | 3283 | int i, pos, offset, regn, regsize, gotten; |
00bf0b85 SS |
3284 | unsigned short mlen; |
3285 | char *regs; | |
3286 | ||
3287 | /* An uninitialized reg size says we're not going to be | |
3288 | successful at getting register blocks. */ | |
3289 | if (!trace_regblock_size) | |
3290 | return; | |
3291 | ||
3292 | regs = alloca (trace_regblock_size); | |
3293 | ||
3294 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3295 | pos = 0; | |
3296 | while (pos < cur_data_size) | |
3297 | { | |
98e03262 SS |
3298 | gotten = read (trace_fd, &block_type, 1); |
3299 | if (gotten < 0) | |
3300 | perror_with_name (trace_filename); | |
3301 | else if (gotten < 1) | |
3302 | error (_("Premature end of file while reading trace file")); | |
3303 | ||
00bf0b85 SS |
3304 | ++pos; |
3305 | switch (block_type) | |
3306 | { | |
3307 | case 'R': | |
98e03262 SS |
3308 | gotten = read (trace_fd, regs, trace_regblock_size); |
3309 | if (gotten < 0) | |
3310 | perror_with_name (trace_filename); | |
3311 | else if (gotten < trace_regblock_size) | |
3312 | error (_("Premature end of file while reading trace file")); | |
3313 | ||
00bf0b85 SS |
3314 | /* Assume the block is laid out in GDB register number order, |
3315 | each register with the size that it has in GDB. */ | |
3316 | offset = 0; | |
3317 | for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++) | |
3318 | { | |
3319 | regsize = register_size (gdbarch, regn); | |
3320 | /* Make sure we stay within block bounds. */ | |
3321 | if (offset + regsize >= trace_regblock_size) | |
3322 | break; | |
3323 | if (!regcache_valid_p (regcache, regn)) | |
3324 | { | |
3325 | if (regno == regn) | |
3326 | { | |
3327 | regcache_raw_supply (regcache, regno, regs + offset); | |
3328 | break; | |
3329 | } | |
3330 | else if (regno == -1) | |
3331 | { | |
3332 | regcache_raw_supply (regcache, regn, regs + offset); | |
3333 | } | |
3334 | } | |
3335 | offset += regsize; | |
3336 | } | |
3337 | return; | |
3338 | case 'M': | |
3339 | lseek (trace_fd, 8, SEEK_CUR); | |
98e03262 SS |
3340 | gotten = read (trace_fd, &mlen, 2); |
3341 | if (gotten < 0) | |
3342 | perror_with_name (trace_filename); | |
3343 | else if (gotten < 2) | |
3344 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3345 | lseek (trace_fd, mlen, SEEK_CUR); |
3346 | pos += (8 + 2 + mlen); | |
3347 | break; | |
3348 | case 'V': | |
3349 | lseek (trace_fd, 4 + 8, SEEK_CUR); | |
3350 | pos += (4 + 8); | |
3351 | break; | |
3352 | default: | |
3353 | error ("Unknown block type '%c' (0x%x) in trace frame", | |
3354 | block_type, block_type); | |
3355 | break; | |
3356 | } | |
3357 | } | |
3358 | } | |
3359 | ||
3360 | static LONGEST | |
3361 | tfile_xfer_partial (struct target_ops *ops, enum target_object object, | |
3362 | const char *annex, gdb_byte *readbuf, | |
3363 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
3364 | { | |
3365 | char block_type; | |
98e03262 | 3366 | int pos, gotten; |
00bf0b85 SS |
3367 | ULONGEST maddr; |
3368 | unsigned short mlen; | |
3369 | ||
3370 | /* We're only doing regular memory for now. */ | |
3371 | if (object != TARGET_OBJECT_MEMORY) | |
3372 | return -1; | |
3373 | ||
3374 | if (readbuf == NULL) | |
3375 | error ("tfile_xfer_partial: trace file is read-only"); | |
3376 | ||
3377 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3378 | pos = 0; | |
3379 | while (pos < cur_data_size) | |
3380 | { | |
98e03262 SS |
3381 | gotten = read (trace_fd, &block_type, 1); |
3382 | if (gotten < 0) | |
3383 | perror_with_name (trace_filename); | |
3384 | else if (gotten < 1) | |
3385 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3386 | ++pos; |
3387 | switch (block_type) | |
3388 | { | |
3389 | case 'R': | |
3390 | lseek (trace_fd, trace_regblock_size, SEEK_CUR); | |
3391 | pos += trace_regblock_size; | |
3392 | break; | |
3393 | case 'M': | |
98e03262 SS |
3394 | gotten = read (trace_fd, &maddr, 8); |
3395 | if (gotten < 0) | |
3396 | perror_with_name (trace_filename); | |
3397 | else if (gotten < 8) | |
3398 | error (_("Premature end of file while reading trace file")); | |
3399 | ||
3400 | gotten = read (trace_fd, &mlen, 2); | |
3401 | if (gotten < 0) | |
3402 | perror_with_name (trace_filename); | |
3403 | else if (gotten < 2) | |
3404 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3405 | if (maddr <= offset && (offset + len) <= (maddr + mlen)) |
3406 | { | |
98e03262 SS |
3407 | gotten = read (trace_fd, readbuf, mlen); |
3408 | if (gotten < 0) | |
3409 | perror_with_name (trace_filename); | |
3410 | else if (gotten < mlen) | |
3411 | error (_("Premature end of file qwhile reading trace file")); | |
3412 | ||
00bf0b85 SS |
3413 | return mlen; |
3414 | } | |
3415 | lseek (trace_fd, mlen, SEEK_CUR); | |
3416 | pos += (8 + 2 + mlen); | |
3417 | break; | |
3418 | case 'V': | |
3419 | lseek (trace_fd, 4 + 8, SEEK_CUR); | |
3420 | pos += (4 + 8); | |
3421 | break; | |
3422 | default: | |
3423 | error ("Unknown block type '%c' (0x%x) in traceframe", | |
3424 | block_type, block_type); | |
3425 | break; | |
3426 | } | |
3427 | } | |
3428 | /* Indicate failure to find the requested memory block. */ | |
3429 | return -1; | |
3430 | } | |
3431 | ||
3432 | /* Iterate through the blocks of a trace frame, looking for a 'V' | |
3433 | block with a matching tsv number. */ | |
3434 | ||
3435 | static int | |
3436 | tfile_get_trace_state_variable_value (int tsvnum, LONGEST *val) | |
3437 | { | |
3438 | char block_type; | |
98e03262 | 3439 | int pos, vnum, gotten; |
00bf0b85 SS |
3440 | unsigned short mlen; |
3441 | ||
3442 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3443 | pos = 0; | |
3444 | while (pos < cur_data_size) | |
3445 | { | |
98e03262 SS |
3446 | gotten = read (trace_fd, &block_type, 1); |
3447 | if (gotten < 0) | |
3448 | perror_with_name (trace_filename); | |
3449 | else if (gotten < 1) | |
3450 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3451 | ++pos; |
3452 | switch (block_type) | |
3453 | { | |
3454 | case 'R': | |
3455 | lseek (trace_fd, trace_regblock_size, SEEK_CUR); | |
3456 | pos += trace_regblock_size; | |
3457 | break; | |
3458 | case 'M': | |
3459 | lseek (trace_fd, 8, SEEK_CUR); | |
98e03262 SS |
3460 | gotten = read (trace_fd, &mlen, 2); |
3461 | if (gotten < 0) | |
3462 | perror_with_name (trace_filename); | |
3463 | else if (gotten < 2) | |
3464 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3465 | lseek (trace_fd, mlen, SEEK_CUR); |
3466 | pos += (8 + 2 + mlen); | |
3467 | break; | |
3468 | case 'V': | |
98e03262 SS |
3469 | gotten = read (trace_fd, &vnum, 4); |
3470 | if (gotten < 0) | |
3471 | perror_with_name (trace_filename); | |
3472 | else if (gotten < 4) | |
3473 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3474 | if (tsvnum == vnum) |
3475 | { | |
98e03262 SS |
3476 | gotten = read (trace_fd, val, 8); |
3477 | if (gotten < 0) | |
3478 | perror_with_name (trace_filename); | |
3479 | else if (gotten < 8) | |
3480 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3481 | return 1; |
3482 | } | |
3483 | lseek (trace_fd, 8, SEEK_CUR); | |
3484 | pos += (4 + 8); | |
3485 | break; | |
3486 | default: | |
3487 | error ("Unknown block type '%c' (0x%x) in traceframe", | |
3488 | block_type, block_type); | |
3489 | break; | |
3490 | } | |
3491 | } | |
3492 | /* Didn't find anything. */ | |
3493 | return 0; | |
3494 | } | |
3495 | ||
3496 | static int | |
3497 | tfile_has_memory (struct target_ops *ops) | |
3498 | { | |
3499 | return 1; | |
3500 | } | |
3501 | ||
3502 | static int | |
3503 | tfile_has_stack (struct target_ops *ops) | |
3504 | { | |
3505 | return 1; | |
3506 | } | |
3507 | ||
3508 | static int | |
3509 | tfile_has_registers (struct target_ops *ops) | |
3510 | { | |
3511 | return 1; | |
3512 | } | |
3513 | ||
3514 | static void | |
3515 | init_tfile_ops (void) | |
3516 | { | |
3517 | tfile_ops.to_shortname = "tfile"; | |
3518 | tfile_ops.to_longname = "Local trace dump file"; | |
3519 | tfile_ops.to_doc = | |
3520 | "Use a trace file as a target. Specify the filename of the trace file."; | |
3521 | tfile_ops.to_open = tfile_open; | |
3522 | tfile_ops.to_close = tfile_close; | |
3523 | tfile_ops.to_fetch_registers = tfile_fetch_registers; | |
3524 | tfile_ops.to_xfer_partial = tfile_xfer_partial; | |
3525 | tfile_ops.to_files_info = tfile_files_info; | |
3526 | tfile_ops.to_get_trace_status = tfile_get_trace_status; | |
3527 | tfile_ops.to_trace_find = tfile_trace_find; | |
3528 | tfile_ops.to_get_trace_state_variable_value = tfile_get_trace_state_variable_value; | |
3529 | /* core_stratum might seem more logical, but GDB doesn't like having | |
3530 | more than one core_stratum vector. */ | |
3531 | tfile_ops.to_stratum = process_stratum; | |
3532 | tfile_ops.to_has_memory = tfile_has_memory; | |
3533 | tfile_ops.to_has_stack = tfile_has_stack; | |
3534 | tfile_ops.to_has_registers = tfile_has_registers; | |
3535 | tfile_ops.to_magic = OPS_MAGIC; | |
3536 | } | |
3537 | ||
c906108c SS |
3538 | /* module initialization */ |
3539 | void | |
fba45db2 | 3540 | _initialize_tracepoint (void) |
c906108c | 3541 | { |
fa58ee11 EZ |
3542 | struct cmd_list_element *c; |
3543 | ||
c906108c SS |
3544 | traceframe_number = -1; |
3545 | tracepoint_number = -1; | |
3546 | ||
c906108c SS |
3547 | if (tracepoint_list.list == NULL) |
3548 | { | |
3549 | tracepoint_list.listsize = 128; | |
c5aa993b | 3550 | tracepoint_list.list = xmalloc |
c906108c SS |
3551 | (tracepoint_list.listsize * sizeof (struct memrange)); |
3552 | } | |
3553 | if (tracepoint_list.aexpr_list == NULL) | |
3554 | { | |
3555 | tracepoint_list.aexpr_listsize = 128; | |
3556 | tracepoint_list.aexpr_list = xmalloc | |
3557 | (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
3558 | } | |
3559 | ||
3560 | if (stepping_list.list == NULL) | |
3561 | { | |
3562 | stepping_list.listsize = 128; | |
c5aa993b | 3563 | stepping_list.list = xmalloc |
c906108c SS |
3564 | (stepping_list.listsize * sizeof (struct memrange)); |
3565 | } | |
3566 | ||
3567 | if (stepping_list.aexpr_list == NULL) | |
3568 | { | |
3569 | stepping_list.aexpr_listsize = 128; | |
3570 | stepping_list.aexpr_list = xmalloc | |
3571 | (stepping_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
3572 | } | |
3573 | ||
c5aa993b | 3574 | add_info ("scope", scope_info, |
1bedd215 | 3575 | _("List the variables local to a scope")); |
c906108c | 3576 | |
e00d1dc8 | 3577 | add_cmd ("tracepoints", class_trace, NULL, |
1a966eab | 3578 | _("Tracing of program execution without stopping the program."), |
c906108c SS |
3579 | &cmdlist); |
3580 | ||
c5aa993b | 3581 | add_com ("tdump", class_trace, trace_dump_command, |
1bedd215 | 3582 | _("Print everything collected at the current tracepoint.")); |
c906108c | 3583 | |
00bf0b85 SS |
3584 | add_com ("tsave", class_trace, trace_save_command, _("\ |
3585 | Save the trace data to a file.\n\ | |
3586 | Use the '-r' option to direct the target to save directly to the file,\n\ | |
3587 | using its own filesystem.")); | |
3588 | ||
f61e138d SS |
3589 | c = add_com ("tvariable", class_trace, trace_variable_command,_("\ |
3590 | Define a trace state variable.\n\ | |
3591 | Argument is a $-prefixed name, optionally followed\n\ | |
3592 | by '=' and an expression that sets the initial value\n\ | |
3593 | at the start of tracing.")); | |
3594 | set_cmd_completer (c, expression_completer); | |
3595 | ||
3596 | add_cmd ("tvariable", class_trace, delete_trace_variable_command, _("\ | |
3597 | Delete one or more trace state variables.\n\ | |
3598 | Arguments are the names of the variables to delete.\n\ | |
3599 | If no arguments are supplied, delete all variables."), &deletelist); | |
3600 | /* FIXME add a trace variable completer */ | |
3601 | ||
3602 | add_info ("tvariables", tvariables_info, _("\ | |
3603 | Status of trace state variables and their values.\n\ | |
3604 | ")); | |
3605 | ||
1bedd215 AC |
3606 | add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\ |
3607 | Select a trace frame;\n\ | |
3608 | No argument means forward by one frame; '-' means backward by one frame."), | |
c906108c SS |
3609 | &tfindlist, "tfind ", 1, &cmdlist); |
3610 | ||
1a966eab AC |
3611 | add_cmd ("outside", class_trace, trace_find_outside_command, _("\ |
3612 | Select a trace frame whose PC is outside the given range.\n\ | |
3613 | Usage: tfind outside addr1, addr2"), | |
c906108c SS |
3614 | &tfindlist); |
3615 | ||
1a966eab AC |
3616 | add_cmd ("range", class_trace, trace_find_range_command, _("\ |
3617 | Select a trace frame whose PC is in the given range.\n\ | |
3618 | Usage: tfind range addr1,addr2"), | |
c906108c SS |
3619 | &tfindlist); |
3620 | ||
1a966eab AC |
3621 | add_cmd ("line", class_trace, trace_find_line_command, _("\ |
3622 | Select a trace frame by source line.\n\ | |
c906108c SS |
3623 | Argument can be a line number (with optional source file), \n\ |
3624 | a function name, or '*' followed by an address.\n\ | |
1a966eab | 3625 | Default argument is 'the next source line that was traced'."), |
c906108c SS |
3626 | &tfindlist); |
3627 | ||
1a966eab AC |
3628 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, _("\ |
3629 | Select a trace frame by tracepoint number.\n\ | |
3630 | Default is the tracepoint for the current trace frame."), | |
c906108c SS |
3631 | &tfindlist); |
3632 | ||
1a966eab AC |
3633 | add_cmd ("pc", class_trace, trace_find_pc_command, _("\ |
3634 | Select a trace frame by PC.\n\ | |
3635 | Default is the current PC, or the PC of the current trace frame."), | |
c906108c SS |
3636 | &tfindlist); |
3637 | ||
1a966eab AC |
3638 | add_cmd ("end", class_trace, trace_find_end_command, _("\ |
3639 | Synonym for 'none'.\n\ | |
3640 | De-select any trace frame and resume 'live' debugging."), | |
c906108c SS |
3641 | &tfindlist); |
3642 | ||
3643 | add_cmd ("none", class_trace, trace_find_none_command, | |
1a966eab | 3644 | _("De-select any trace frame and resume 'live' debugging."), |
c906108c SS |
3645 | &tfindlist); |
3646 | ||
3647 | add_cmd ("start", class_trace, trace_find_start_command, | |
1a966eab | 3648 | _("Select the first trace frame in the trace buffer."), |
c906108c SS |
3649 | &tfindlist); |
3650 | ||
c5aa993b | 3651 | add_com ("tstatus", class_trace, trace_status_command, |
1bedd215 | 3652 | _("Display the status of the current trace data collection.")); |
c906108c | 3653 | |
c5aa993b | 3654 | add_com ("tstop", class_trace, trace_stop_command, |
1bedd215 | 3655 | _("Stop trace data collection.")); |
c906108c SS |
3656 | |
3657 | add_com ("tstart", class_trace, trace_start_command, | |
1bedd215 | 3658 | _("Start trace data collection.")); |
c906108c | 3659 | |
1bedd215 AC |
3660 | add_com ("end", class_trace, end_actions_pseudocommand, _("\ |
3661 | Ends a list of commands or actions.\n\ | |
c906108c SS |
3662 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
3663 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
3664 | such a list.\n\n\ | |
1bedd215 | 3665 | Note: the \"end\" command cannot be used at the gdb prompt.")); |
c906108c | 3666 | |
1bedd215 AC |
3667 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, _("\ |
3668 | Specify single-stepping behavior at a tracepoint.\n\ | |
c906108c SS |
3669 | Argument is number of instructions to trace in single-step mode\n\ |
3670 | following the tracepoint. This command is normally followed by\n\ | |
3671 | one or more \"collect\" commands, to specify what to collect\n\ | |
3672 | while single-stepping.\n\n\ | |
1bedd215 | 3673 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 3674 | |
c5aa993b JM |
3675 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
3676 | add_com_alias ("stepping", "while-stepping", class_alias, 0); | |
c906108c | 3677 | |
1bedd215 AC |
3678 | add_com ("collect", class_trace, collect_pseudocommand, _("\ |
3679 | Specify one or more data items to be collected at a tracepoint.\n\ | |
c906108c SS |
3680 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
3681 | collect all data (variables, registers) referenced by that expression.\n\ | |
3682 | Also accepts the following special arguments:\n\ | |
3683 | $regs -- all registers.\n\ | |
3684 | $args -- all function arguments.\n\ | |
3685 | $locals -- all variables local to the block/function scope.\n\ | |
1bedd215 | 3686 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 3687 | |
6da95a67 SS |
3688 | add_com ("teval", class_trace, teval_pseudocommand, _("\ |
3689 | Specify one or more expressions to be evaluated at a tracepoint.\n\ | |
3690 | Accepts a comma-separated list of (one or more) expressions.\n\ | |
3691 | The result of each evaluation will be discarded.\n\ | |
3692 | Note: this command can only be used in a tracepoint \"actions\" list.")); | |
3693 | ||
1bedd215 AC |
3694 | add_com ("actions", class_trace, trace_actions_command, _("\ |
3695 | Specify the actions to be taken at a tracepoint.\n\ | |
c906108c SS |
3696 | Tracepoint actions may include collecting of specified data, \n\ |
3697 | single-stepping, or enabling/disabling other tracepoints, \n\ | |
1bedd215 | 3698 | depending on target's capabilities.")); |
c906108c | 3699 | |
236f1d4d SS |
3700 | default_collect = xstrdup (""); |
3701 | add_setshow_string_cmd ("default-collect", class_trace, | |
3702 | &default_collect, _("\ | |
3703 | Set the list of expressions to collect by default"), _("\ | |
3704 | Show the list of expressions to collect by default"), NULL, | |
3705 | NULL, NULL, | |
3706 | &setlist, &showlist); | |
3707 | ||
d5551862 SS |
3708 | add_setshow_boolean_cmd ("disconnected-tracing", no_class, |
3709 | &disconnected_tracing, _("\ | |
3710 | Set whether tracing continues after GDB disconnects."), _("\ | |
3711 | Show whether tracing continues after GDB disconnects."), _("\ | |
3712 | Use this to continue a tracing run even if GDB disconnects\n\ | |
3713 | or detaches from the target. You can reconnect later and look at\n\ | |
3714 | trace data collected in the meantime."), | |
3715 | set_disconnected_tracing, | |
3716 | NULL, | |
3717 | &setlist, | |
3718 | &showlist); | |
00bf0b85 SS |
3719 | |
3720 | init_tfile_ops (); | |
3721 | ||
3722 | add_target (&tfile_ops); | |
c906108c | 3723 | } |