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