Commit | Line | Data |
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c906108c | 1 | /* Tracing functionality for remote targets in custom GDB protocol |
9f60d481 | 2 | |
6aba47ca | 3 | Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, |
7b6bb8da | 4 | 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 11 | (at your option) any later version. |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b | 18 | You should have received a copy of the GNU General Public License |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
20 | |
21 | #include "defs.h" | |
5af949e3 | 22 | #include "arch-utils.h" |
c906108c SS |
23 | #include "symtab.h" |
24 | #include "frame.h" | |
c906108c SS |
25 | #include "gdbtypes.h" |
26 | #include "expression.h" | |
27 | #include "gdbcmd.h" | |
28 | #include "value.h" | |
29 | #include "target.h" | |
30 | #include "language.h" | |
31 | #include "gdb_string.h" | |
104c1213 | 32 | #include "inferior.h" |
1042e4c0 | 33 | #include "breakpoint.h" |
104c1213 | 34 | #include "tracepoint.h" |
c5f0f3d0 | 35 | #include "linespec.h" |
4e052eda | 36 | #include "regcache.h" |
c94fdfd0 | 37 | #include "completer.h" |
fe898f56 | 38 | #include "block.h" |
de4f826b | 39 | #include "dictionary.h" |
383f836e | 40 | #include "observer.h" |
029a67e4 | 41 | #include "user-regs.h" |
79a45b7d | 42 | #include "valprint.h" |
41575630 | 43 | #include "gdbcore.h" |
768a979c | 44 | #include "objfiles.h" |
35b1e5cc | 45 | #include "filenames.h" |
00bf0b85 | 46 | #include "gdbthread.h" |
2c58c0a9 | 47 | #include "stack.h" |
fce3c1f0 | 48 | #include "gdbcore.h" |
176a6961 | 49 | #include "remote.h" |
0fb4aa4b | 50 | #include "source.h" |
c906108c SS |
51 | #include "ax.h" |
52 | #include "ax-gdb.h" | |
2a7498d8 | 53 | #include "memrange.h" |
e93a69ed | 54 | #include "exceptions.h" |
3065dfb6 | 55 | #include "cli/cli-utils.h" |
c906108c SS |
56 | |
57 | /* readline include files */ | |
dbda9972 AC |
58 | #include "readline/readline.h" |
59 | #include "readline/history.h" | |
c906108c SS |
60 | |
61 | /* readline defines this. */ | |
62 | #undef savestring | |
63 | ||
64 | #ifdef HAVE_UNISTD_H | |
65 | #include <unistd.h> | |
66 | #endif | |
67 | ||
00bf0b85 SS |
68 | #ifndef O_LARGEFILE |
69 | #define O_LARGEFILE 0 | |
70 | #endif | |
71 | ||
72 | extern int hex2bin (const char *hex, gdb_byte *bin, int count); | |
73 | extern int bin2hex (const gdb_byte *bin, char *hex, int count); | |
74 | ||
d183932d MS |
75 | /* Maximum length of an agent aexpression. |
76 | This accounts for the fact that packets are limited to 400 bytes | |
c906108c SS |
77 | (which includes everything -- including the checksum), and assumes |
78 | the worst case of maximum length for each of the pieces of a | |
79 | continuation packet. | |
c5aa993b | 80 | |
c906108c SS |
81 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
82 | large. (400 - 31)/2 == 184 */ | |
83 | #define MAX_AGENT_EXPR_LEN 184 | |
84 | ||
e93a69ed PA |
85 | #define TFILE_PID (1) |
86 | ||
98c5b216 TT |
87 | /* A hook used to notify the UI of tracepoint operations. */ |
88 | ||
89 | void (*deprecated_trace_find_hook) (char *arg, int from_tty); | |
90 | void (*deprecated_trace_start_stop_hook) (int start, int from_tty); | |
c906108c | 91 | |
9a4105ab AC |
92 | extern void (*deprecated_readline_begin_hook) (char *, ...); |
93 | extern char *(*deprecated_readline_hook) (char *); | |
94 | extern void (*deprecated_readline_end_hook) (void); | |
c906108c | 95 | |
104c1213 JM |
96 | /* GDB commands implemented in other modules: |
97 | */ | |
98 | ||
a14ed312 | 99 | extern void output_command (char *, int); |
104c1213 | 100 | |
c906108c SS |
101 | /* |
102 | Tracepoint.c: | |
103 | ||
104 | This module defines the following debugger commands: | |
105 | trace : set a tracepoint on a function, line, or address. | |
106 | info trace : list all debugger-defined tracepoints. | |
107 | delete trace : delete one or more tracepoints. | |
108 | enable trace : enable one or more tracepoints. | |
109 | disable trace : disable one or more tracepoints. | |
110 | actions : specify actions to be taken at a tracepoint. | |
111 | passcount : specify a pass count for a tracepoint. | |
112 | tstart : start a trace experiment. | |
113 | tstop : stop a trace experiment. | |
114 | tstatus : query the status of a trace experiment. | |
115 | tfind : find a trace frame in the trace buffer. | |
116 | tdump : print everything collected at the current tracepoint. | |
117 | save-tracepoints : write tracepoint setup into a file. | |
118 | ||
119 | This module defines the following user-visible debugger variables: | |
120 | $trace_frame : sequence number of trace frame currently being debugged. | |
121 | $trace_line : source line of trace frame currently being debugged. | |
122 | $trace_file : source file of trace frame currently being debugged. | |
123 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
c5aa993b | 124 | */ |
c906108c SS |
125 | |
126 | ||
127 | /* ======= Important global variables: ======= */ | |
128 | ||
f61e138d SS |
129 | /* The list of all trace state variables. We don't retain pointers to |
130 | any of these for any reason - API is by name or number only - so it | |
131 | works to have a vector of objects. */ | |
132 | ||
133 | typedef struct trace_state_variable tsv_s; | |
134 | DEF_VEC_O(tsv_s); | |
135 | ||
b3b9301e PA |
136 | /* An object describing the contents of a traceframe. */ |
137 | ||
138 | struct traceframe_info | |
139 | { | |
140 | /* Collected memory. */ | |
141 | VEC(mem_range_s) *memory; | |
142 | }; | |
143 | ||
f61e138d SS |
144 | static VEC(tsv_s) *tvariables; |
145 | ||
146 | /* The next integer to assign to a variable. */ | |
147 | ||
148 | static int next_tsv_number = 1; | |
149 | ||
c906108c SS |
150 | /* Number of last traceframe collected. */ |
151 | static int traceframe_number; | |
152 | ||
153 | /* Tracepoint for last traceframe collected. */ | |
154 | static int tracepoint_number; | |
155 | ||
c378eb4e | 156 | /* Symbol for function for last traceframe collected. */ |
c906108c SS |
157 | static struct symbol *traceframe_fun; |
158 | ||
c378eb4e | 159 | /* Symtab and line for last traceframe collected. */ |
c906108c SS |
160 | static struct symtab_and_line traceframe_sal; |
161 | ||
b3b9301e PA |
162 | /* The traceframe info of the current traceframe. NULL if we haven't |
163 | yet attempted to fetch it, or if the target does not support | |
164 | fetching this object, or if we're not inspecting a traceframe | |
165 | presently. */ | |
166 | static struct traceframe_info *traceframe_info; | |
167 | ||
c378eb4e | 168 | /* Tracing command lists. */ |
c906108c SS |
169 | static struct cmd_list_element *tfindlist; |
170 | ||
236f1d4d | 171 | /* List of expressions to collect by default at each tracepoint hit. */ |
35b1e5cc | 172 | char *default_collect = ""; |
236f1d4d | 173 | |
d5551862 SS |
174 | static int disconnected_tracing; |
175 | ||
4daf5ac0 SS |
176 | /* This variable controls whether we ask the target for a linear or |
177 | circular trace buffer. */ | |
178 | ||
179 | static int circular_trace_buffer; | |
180 | ||
c906108c | 181 | /* ======= Important command functions: ======= */ |
a14ed312 KB |
182 | static void trace_actions_command (char *, int); |
183 | static void trace_start_command (char *, int); | |
184 | static void trace_stop_command (char *, int); | |
185 | static void trace_status_command (char *, int); | |
186 | static void trace_find_command (char *, int); | |
187 | static void trace_find_pc_command (char *, int); | |
188 | static void trace_find_tracepoint_command (char *, int); | |
189 | static void trace_find_line_command (char *, int); | |
190 | static void trace_find_range_command (char *, int); | |
191 | static void trace_find_outside_command (char *, int); | |
a14ed312 | 192 | static void trace_dump_command (char *, int); |
c906108c SS |
193 | |
194 | /* support routines */ | |
c906108c SS |
195 | |
196 | struct collection_list; | |
a14ed312 | 197 | static void add_aexpr (struct collection_list *, struct agent_expr *); |
47b667de | 198 | static char *mem2hex (gdb_byte *, char *, int); |
a14ed312 KB |
199 | static void add_register (struct collection_list *collection, |
200 | unsigned int regno); | |
392a587b | 201 | |
d5551862 SS |
202 | extern void send_disconnected_tracing_value (int value); |
203 | ||
00bf0b85 SS |
204 | static void free_uploaded_tps (struct uploaded_tp **utpp); |
205 | static void free_uploaded_tsvs (struct uploaded_tsv **utsvp); | |
206 | ||
207 | ||
a14ed312 | 208 | extern void _initialize_tracepoint (void); |
c906108c | 209 | |
00bf0b85 SS |
210 | static struct trace_status trace_status; |
211 | ||
212 | char *stop_reason_names[] = { | |
213 | "tunknown", | |
214 | "tnotrun", | |
215 | "tstop", | |
216 | "tfull", | |
217 | "tdisconnected", | |
6c28cbf2 SS |
218 | "tpasscount", |
219 | "terror" | |
00bf0b85 SS |
220 | }; |
221 | ||
222 | struct trace_status * | |
eeae04df | 223 | current_trace_status (void) |
00bf0b85 SS |
224 | { |
225 | return &trace_status; | |
226 | } | |
227 | ||
b3b9301e PA |
228 | /* Destroy INFO. */ |
229 | ||
230 | static void | |
231 | free_traceframe_info (struct traceframe_info *info) | |
232 | { | |
233 | if (info != NULL) | |
234 | { | |
235 | VEC_free (mem_range_s, info->memory); | |
236 | ||
237 | xfree (info); | |
238 | } | |
239 | } | |
240 | ||
7a9dd1b2 | 241 | /* Free and clear the traceframe info cache of the current |
b3b9301e PA |
242 | traceframe. */ |
243 | ||
244 | static void | |
245 | clear_traceframe_info (void) | |
246 | { | |
247 | free_traceframe_info (traceframe_info); | |
248 | traceframe_info = NULL; | |
249 | } | |
250 | ||
c906108c SS |
251 | /* Set traceframe number to NUM. */ |
252 | static void | |
fba45db2 | 253 | set_traceframe_num (int num) |
c906108c SS |
254 | { |
255 | traceframe_number = num; | |
4fa62494 | 256 | set_internalvar_integer (lookup_internalvar ("trace_frame"), num); |
c906108c SS |
257 | } |
258 | ||
259 | /* Set tracepoint number to NUM. */ | |
260 | static void | |
fba45db2 | 261 | set_tracepoint_num (int num) |
c906108c SS |
262 | { |
263 | tracepoint_number = num; | |
4fa62494 | 264 | set_internalvar_integer (lookup_internalvar ("tracepoint"), num); |
c906108c SS |
265 | } |
266 | ||
267 | /* Set externally visible debug variables for querying/printing | |
c378eb4e | 268 | the traceframe context (line, function, file). */ |
c906108c SS |
269 | |
270 | static void | |
fb14de7b | 271 | set_traceframe_context (struct frame_info *trace_frame) |
c906108c | 272 | { |
fb14de7b UW |
273 | CORE_ADDR trace_pc; |
274 | ||
dba09041 PA |
275 | /* Save as globals for internal use. */ |
276 | if (trace_frame != NULL | |
277 | && get_frame_pc_if_available (trace_frame, &trace_pc)) | |
278 | { | |
279 | traceframe_sal = find_pc_line (trace_pc, 0); | |
280 | traceframe_fun = find_pc_function (trace_pc); | |
281 | ||
282 | /* Save linenumber as "$trace_line", a debugger variable visible to | |
283 | users. */ | |
284 | set_internalvar_integer (lookup_internalvar ("trace_line"), | |
285 | traceframe_sal.line); | |
286 | } | |
287 | else | |
c906108c | 288 | { |
dba09041 PA |
289 | init_sal (&traceframe_sal); |
290 | traceframe_fun = NULL; | |
4fa62494 | 291 | set_internalvar_integer (lookup_internalvar ("trace_line"), -1); |
c906108c SS |
292 | } |
293 | ||
d183932d MS |
294 | /* Save func name as "$trace_func", a debugger variable visible to |
295 | users. */ | |
4fa62494 UW |
296 | if (traceframe_fun == NULL |
297 | || SYMBOL_LINKAGE_NAME (traceframe_fun) == NULL) | |
298 | clear_internalvar (lookup_internalvar ("trace_func")); | |
c906108c | 299 | else |
78267919 UW |
300 | set_internalvar_string (lookup_internalvar ("trace_func"), |
301 | SYMBOL_LINKAGE_NAME (traceframe_fun)); | |
c906108c | 302 | |
d183932d MS |
303 | /* Save file name as "$trace_file", a debugger variable visible to |
304 | users. */ | |
4fa62494 UW |
305 | if (traceframe_sal.symtab == NULL |
306 | || traceframe_sal.symtab->filename == NULL) | |
307 | clear_internalvar (lookup_internalvar ("trace_file")); | |
c906108c | 308 | else |
78267919 UW |
309 | set_internalvar_string (lookup_internalvar ("trace_file"), |
310 | traceframe_sal.symtab->filename); | |
c906108c SS |
311 | } |
312 | ||
f61e138d SS |
313 | /* Create a new trace state variable with the given name. */ |
314 | ||
315 | struct trace_state_variable * | |
316 | create_trace_state_variable (const char *name) | |
317 | { | |
318 | struct trace_state_variable tsv; | |
319 | ||
320 | memset (&tsv, 0, sizeof (tsv)); | |
40e1c229 | 321 | tsv.name = xstrdup (name); |
f61e138d SS |
322 | tsv.number = next_tsv_number++; |
323 | return VEC_safe_push (tsv_s, tvariables, &tsv); | |
324 | } | |
325 | ||
326 | /* Look for a trace state variable of the given name. */ | |
327 | ||
328 | struct trace_state_variable * | |
329 | find_trace_state_variable (const char *name) | |
330 | { | |
331 | struct trace_state_variable *tsv; | |
332 | int ix; | |
333 | ||
334 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
335 | if (strcmp (name, tsv->name) == 0) | |
336 | return tsv; | |
337 | ||
338 | return NULL; | |
339 | } | |
340 | ||
341 | void | |
342 | delete_trace_state_variable (const char *name) | |
343 | { | |
344 | struct trace_state_variable *tsv; | |
345 | int ix; | |
346 | ||
347 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
348 | if (strcmp (name, tsv->name) == 0) | |
349 | { | |
40e1c229 | 350 | xfree ((void *)tsv->name); |
f61e138d SS |
351 | VEC_unordered_remove (tsv_s, tvariables, ix); |
352 | return; | |
353 | } | |
354 | ||
355 | warning (_("No trace variable named \"$%s\", not deleting"), name); | |
356 | } | |
357 | ||
358 | /* The 'tvariable' command collects a name and optional expression to | |
359 | evaluate into an initial value. */ | |
360 | ||
361 | void | |
362 | trace_variable_command (char *args, int from_tty) | |
363 | { | |
364 | struct expression *expr; | |
365 | struct cleanup *old_chain; | |
366 | struct internalvar *intvar = NULL; | |
367 | LONGEST initval = 0; | |
368 | struct trace_state_variable *tsv; | |
369 | ||
370 | if (!args || !*args) | |
371 | error_no_arg (_("trace state variable name")); | |
372 | ||
373 | /* All the possible valid arguments are expressions. */ | |
374 | expr = parse_expression (args); | |
375 | old_chain = make_cleanup (free_current_contents, &expr); | |
376 | ||
377 | if (expr->nelts == 0) | |
378 | error (_("No expression?")); | |
379 | ||
380 | /* Only allow two syntaxes; "$name" and "$name=value". */ | |
381 | if (expr->elts[0].opcode == OP_INTERNALVAR) | |
382 | { | |
383 | intvar = expr->elts[1].internalvar; | |
384 | } | |
385 | else if (expr->elts[0].opcode == BINOP_ASSIGN | |
386 | && expr->elts[1].opcode == OP_INTERNALVAR) | |
387 | { | |
388 | intvar = expr->elts[2].internalvar; | |
389 | initval = value_as_long (evaluate_subexpression_type (expr, 4)); | |
390 | } | |
391 | else | |
392 | error (_("Syntax must be $NAME [ = EXPR ]")); | |
393 | ||
394 | if (!intvar) | |
395 | error (_("No name given")); | |
396 | ||
397 | if (strlen (internalvar_name (intvar)) <= 0) | |
398 | error (_("Must supply a non-empty variable name")); | |
399 | ||
400 | /* If the variable already exists, just change its initial value. */ | |
401 | tsv = find_trace_state_variable (internalvar_name (intvar)); | |
402 | if (tsv) | |
403 | { | |
404 | tsv->initial_value = initval; | |
3e43a32a MS |
405 | printf_filtered (_("Trace state variable $%s " |
406 | "now has initial value %s.\n"), | |
f61e138d | 407 | tsv->name, plongest (tsv->initial_value)); |
f90824dc | 408 | do_cleanups (old_chain); |
f61e138d SS |
409 | return; |
410 | } | |
411 | ||
412 | /* Create a new variable. */ | |
413 | tsv = create_trace_state_variable (internalvar_name (intvar)); | |
414 | tsv->initial_value = initval; | |
415 | ||
3e43a32a MS |
416 | printf_filtered (_("Trace state variable $%s " |
417 | "created, with initial value %s.\n"), | |
f61e138d SS |
418 | tsv->name, plongest (tsv->initial_value)); |
419 | ||
420 | do_cleanups (old_chain); | |
421 | } | |
422 | ||
423 | void | |
424 | delete_trace_variable_command (char *args, int from_tty) | |
425 | { | |
2a2287c7 | 426 | int ix; |
f61e138d SS |
427 | char **argv; |
428 | struct cleanup *back_to; | |
f61e138d SS |
429 | |
430 | if (args == NULL) | |
431 | { | |
432 | if (query (_("Delete all trace state variables? "))) | |
433 | VEC_free (tsv_s, tvariables); | |
434 | dont_repeat (); | |
435 | return; | |
436 | } | |
437 | ||
438 | argv = gdb_buildargv (args); | |
439 | back_to = make_cleanup_freeargv (argv); | |
440 | ||
2a2287c7 | 441 | for (ix = 0; argv[ix] != NULL; ix++) |
f61e138d | 442 | { |
2a2287c7 MS |
443 | if (*argv[ix] == '$') |
444 | delete_trace_state_variable (argv[ix] + 1); | |
f61e138d | 445 | else |
2a2287c7 | 446 | warning (_("Name \"%s\" not prefixed with '$', ignoring"), argv[ix]); |
f61e138d SS |
447 | } |
448 | ||
449 | do_cleanups (back_to); | |
450 | ||
451 | dont_repeat (); | |
452 | } | |
453 | ||
40e1c229 VP |
454 | void |
455 | tvariables_info_1 (void) | |
f61e138d SS |
456 | { |
457 | struct trace_state_variable *tsv; | |
458 | int ix; | |
40e1c229 VP |
459 | int count = 0; |
460 | struct cleanup *back_to; | |
79a45e25 | 461 | struct ui_out *uiout = current_uiout; |
f61e138d | 462 | |
40e1c229 | 463 | if (VEC_length (tsv_s, tvariables) == 0 && !ui_out_is_mi_like_p (uiout)) |
f61e138d SS |
464 | { |
465 | printf_filtered (_("No trace state variables.\n")); | |
466 | return; | |
467 | } | |
468 | ||
35b1e5cc | 469 | /* Try to acquire values from the target. */ |
4baf5cf4 | 470 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix, ++count) |
35b1e5cc SS |
471 | tsv->value_known = target_get_trace_state_variable_value (tsv->number, |
472 | &(tsv->value)); | |
473 | ||
40e1c229 VP |
474 | back_to = make_cleanup_ui_out_table_begin_end (uiout, 3, |
475 | count, "trace-variables"); | |
476 | ui_out_table_header (uiout, 15, ui_left, "name", "Name"); | |
477 | ui_out_table_header (uiout, 11, ui_left, "initial", "Initial"); | |
478 | ui_out_table_header (uiout, 11, ui_left, "current", "Current"); | |
479 | ||
480 | ui_out_table_body (uiout); | |
f61e138d SS |
481 | |
482 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
483 | { | |
40e1c229 VP |
484 | struct cleanup *back_to2; |
485 | char *c; | |
486 | char *name; | |
487 | ||
488 | back_to2 = make_cleanup_ui_out_tuple_begin_end (uiout, "variable"); | |
489 | ||
c4f7c687 | 490 | name = concat ("$", tsv->name, (char *) NULL); |
40e1c229 VP |
491 | make_cleanup (xfree, name); |
492 | ui_out_field_string (uiout, "name", name); | |
493 | ui_out_field_string (uiout, "initial", plongest (tsv->initial_value)); | |
494 | ||
f61e138d | 495 | if (tsv->value_known) |
40e1c229 VP |
496 | c = plongest (tsv->value); |
497 | else if (ui_out_is_mi_like_p (uiout)) | |
498 | /* For MI, we prefer not to use magic string constants, but rather | |
499 | omit the field completely. The difference between unknown and | |
500 | undefined does not seem important enough to represent. */ | |
501 | c = NULL; | |
00bf0b85 | 502 | else if (current_trace_status ()->running || traceframe_number >= 0) |
f61e138d | 503 | /* The value is/was defined, but we don't have it. */ |
40e1c229 | 504 | c = "<unknown>"; |
f61e138d SS |
505 | else |
506 | /* It is not meaningful to ask about the value. */ | |
40e1c229 VP |
507 | c = "<undefined>"; |
508 | if (c) | |
509 | ui_out_field_string (uiout, "current", c); | |
510 | ui_out_text (uiout, "\n"); | |
511 | ||
512 | do_cleanups (back_to2); | |
f61e138d | 513 | } |
40e1c229 VP |
514 | |
515 | do_cleanups (back_to); | |
516 | } | |
517 | ||
518 | /* List all the trace state variables. */ | |
519 | ||
520 | static void | |
521 | tvariables_info (char *args, int from_tty) | |
522 | { | |
523 | tvariables_info_1 (); | |
f61e138d SS |
524 | } |
525 | ||
8bf6485c SS |
526 | /* Stash definitions of tsvs into the given file. */ |
527 | ||
528 | void | |
529 | save_trace_state_variables (struct ui_file *fp) | |
530 | { | |
531 | struct trace_state_variable *tsv; | |
532 | int ix; | |
533 | ||
534 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
535 | { | |
536 | fprintf_unfiltered (fp, "tvariable $%s", tsv->name); | |
537 | if (tsv->initial_value) | |
538 | fprintf_unfiltered (fp, " = %s", plongest (tsv->initial_value)); | |
539 | fprintf_unfiltered (fp, "\n"); | |
540 | } | |
541 | } | |
542 | ||
c906108c SS |
543 | /* ACTIONS functions: */ |
544 | ||
c906108c | 545 | /* The three functions: |
c5aa993b JM |
546 | collect_pseudocommand, |
547 | while_stepping_pseudocommand, and | |
548 | end_actions_pseudocommand | |
c906108c SS |
549 | are placeholders for "commands" that are actually ONLY to be used |
550 | within a tracepoint action list. If the actual function is ever called, | |
551 | it means that somebody issued the "command" at the top level, | |
552 | which is always an error. */ | |
553 | ||
1042e4c0 | 554 | void |
fba45db2 | 555 | end_actions_pseudocommand (char *args, int from_tty) |
c906108c | 556 | { |
8a3fe4f8 | 557 | error (_("This command cannot be used at the top level.")); |
c906108c SS |
558 | } |
559 | ||
1042e4c0 | 560 | void |
fba45db2 | 561 | while_stepping_pseudocommand (char *args, int from_tty) |
c906108c | 562 | { |
8a3fe4f8 | 563 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
564 | } |
565 | ||
566 | static void | |
fba45db2 | 567 | collect_pseudocommand (char *args, int from_tty) |
c906108c | 568 | { |
8a3fe4f8 | 569 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
570 | } |
571 | ||
6da95a67 SS |
572 | static void |
573 | teval_pseudocommand (char *args, int from_tty) | |
574 | { | |
575 | error (_("This command can only be used in a tracepoint actions list.")); | |
576 | } | |
577 | ||
3065dfb6 SS |
578 | /* Parse any collection options, such as /s for strings. */ |
579 | ||
580 | char * | |
581 | decode_agent_options (char *exp) | |
582 | { | |
583 | struct value_print_options opts; | |
584 | ||
585 | if (*exp != '/') | |
586 | return exp; | |
587 | ||
588 | /* Call this to borrow the print elements default for collection | |
589 | size. */ | |
590 | get_user_print_options (&opts); | |
591 | ||
592 | exp++; | |
593 | if (*exp == 's') | |
594 | { | |
595 | if (target_supports_string_tracing ()) | |
596 | { | |
597 | /* Allow an optional decimal number giving an explicit maximum | |
598 | string length, defaulting it to the "print elements" value; | |
599 | so "collect/s80 mystr" gets at most 80 bytes of string. */ | |
600 | trace_string_kludge = opts.print_max; | |
601 | exp++; | |
602 | if (*exp >= '0' && *exp <= '9') | |
603 | trace_string_kludge = atoi (exp); | |
604 | while (*exp >= '0' && *exp <= '9') | |
605 | exp++; | |
606 | } | |
607 | else | |
608 | error (_("Target does not support \"/s\" option for string tracing.")); | |
609 | } | |
610 | else | |
611 | error (_("Undefined collection format \"%c\"."), *exp); | |
612 | ||
613 | exp = skip_spaces (exp); | |
614 | ||
615 | return exp; | |
616 | } | |
617 | ||
c906108c SS |
618 | /* Enter a list of actions for a tracepoint. */ |
619 | static void | |
fba45db2 | 620 | trace_actions_command (char *args, int from_tty) |
c906108c | 621 | { |
d9b3f62e | 622 | struct tracepoint *t; |
a7bdde9e | 623 | struct command_line *l; |
c906108c | 624 | |
197f0a60 | 625 | t = get_tracepoint_by_number (&args, NULL, 1); |
7a292a7a | 626 | if (t) |
c906108c | 627 | { |
a7bdde9e VP |
628 | char *tmpbuf = |
629 | xstrprintf ("Enter actions for tracepoint %d, one per line.", | |
d9b3f62e | 630 | t->base.number); |
a7bdde9e VP |
631 | struct cleanup *cleanups = make_cleanup (xfree, tmpbuf); |
632 | ||
3e43a32a MS |
633 | l = read_command_lines (tmpbuf, from_tty, 1, |
634 | check_tracepoint_command, t); | |
a7bdde9e | 635 | do_cleanups (cleanups); |
d9b3f62e | 636 | breakpoint_set_commands (&t->base, l); |
c906108c | 637 | } |
5c44784c | 638 | /* else just return */ |
c906108c SS |
639 | } |
640 | ||
fff87407 SS |
641 | /* Report the results of checking the agent expression, as errors or |
642 | internal errors. */ | |
643 | ||
644 | static void | |
35c9c7ba | 645 | report_agent_reqs_errors (struct agent_expr *aexpr) |
fff87407 SS |
646 | { |
647 | /* All of the "flaws" are serious bytecode generation issues that | |
648 | should never occur. */ | |
35c9c7ba | 649 | if (aexpr->flaw != agent_flaw_none) |
fff87407 SS |
650 | internal_error (__FILE__, __LINE__, _("expression is malformed")); |
651 | ||
652 | /* If analysis shows a stack underflow, GDB must have done something | |
653 | badly wrong in its bytecode generation. */ | |
35c9c7ba | 654 | if (aexpr->min_height < 0) |
fff87407 SS |
655 | internal_error (__FILE__, __LINE__, |
656 | _("expression has min height < 0")); | |
657 | ||
658 | /* Issue this error if the stack is predicted to get too deep. The | |
659 | limit is rather arbitrary; a better scheme might be for the | |
660 | target to report how much stack it will have available. The | |
661 | depth roughly corresponds to parenthesization, so a limit of 20 | |
662 | amounts to 20 levels of expression nesting, which is actually | |
663 | a pretty big hairy expression. */ | |
35c9c7ba | 664 | if (aexpr->max_height > 20) |
fff87407 SS |
665 | error (_("Expression is too complicated.")); |
666 | } | |
667 | ||
c906108c | 668 | /* worker function */ |
fff87407 | 669 | void |
d9b3f62e | 670 | validate_actionline (char **line, struct breakpoint *b) |
c906108c SS |
671 | { |
672 | struct cmd_list_element *c; | |
673 | struct expression *exp = NULL; | |
c906108c | 674 | struct cleanup *old_chain = NULL; |
9355b391 SS |
675 | char *p, *tmp_p; |
676 | struct bp_location *loc; | |
fff87407 | 677 | struct agent_expr *aexpr; |
d9b3f62e | 678 | struct tracepoint *t = (struct tracepoint *) b; |
c906108c | 679 | |
c378eb4e | 680 | /* If EOF is typed, *line is NULL. */ |
15255275 | 681 | if (*line == NULL) |
fff87407 | 682 | return; |
15255275 | 683 | |
104c1213 | 684 | for (p = *line; isspace ((int) *p);) |
c906108c SS |
685 | p++; |
686 | ||
d183932d MS |
687 | /* Symbol lookup etc. */ |
688 | if (*p == '\0') /* empty line: just prompt for another line. */ | |
fff87407 | 689 | return; |
c906108c | 690 | |
c5aa993b | 691 | if (*p == '#') /* comment line */ |
fff87407 | 692 | return; |
c906108c SS |
693 | |
694 | c = lookup_cmd (&p, cmdlist, "", -1, 1); | |
695 | if (c == 0) | |
fff87407 | 696 | error (_("`%s' is not a tracepoint action, or is ambiguous."), p); |
c5aa993b | 697 | |
bbaca940 | 698 | if (cmd_cfunc_eq (c, collect_pseudocommand)) |
c906108c | 699 | { |
3065dfb6 SS |
700 | trace_string_kludge = 0; |
701 | if (*p == '/') | |
702 | p = decode_agent_options (p); | |
703 | ||
c5aa993b | 704 | do |
c378eb4e MS |
705 | { /* Repeat over a comma-separated list. */ |
706 | QUIT; /* Allow user to bail out with ^C. */ | |
104c1213 | 707 | while (isspace ((int) *p)) |
c5aa993b | 708 | p++; |
c906108c | 709 | |
c378eb4e | 710 | if (*p == '$') /* Look for special pseudo-symbols. */ |
c5aa993b | 711 | { |
0fb4aa4b PA |
712 | if (0 == strncasecmp ("reg", p + 1, 3) |
713 | || 0 == strncasecmp ("arg", p + 1, 3) | |
714 | || 0 == strncasecmp ("loc", p + 1, 3) | |
6710bf39 | 715 | || 0 == strncasecmp ("_ret", p + 1, 4) |
0fb4aa4b | 716 | || 0 == strncasecmp ("_sdata", p + 1, 6)) |
c5aa993b JM |
717 | { |
718 | p = strchr (p, ','); | |
719 | continue; | |
720 | } | |
d183932d | 721 | /* else fall thru, treat p as an expression and parse it! */ |
c5aa993b | 722 | } |
9355b391 | 723 | tmp_p = p; |
d9b3f62e | 724 | for (loc = t->base.loc; loc; loc = loc->next) |
c5aa993b | 725 | { |
9355b391 SS |
726 | p = tmp_p; |
727 | exp = parse_exp_1 (&p, block_for_pc (loc->address), 1); | |
728 | old_chain = make_cleanup (free_current_contents, &exp); | |
729 | ||
730 | if (exp->elts[0].opcode == OP_VAR_VALUE) | |
c5aa993b | 731 | { |
9355b391 SS |
732 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) |
733 | { | |
3e43a32a MS |
734 | error (_("constant `%s' (value %ld) " |
735 | "will not be collected."), | |
fff87407 SS |
736 | SYMBOL_PRINT_NAME (exp->elts[2].symbol), |
737 | SYMBOL_VALUE (exp->elts[2].symbol)); | |
9355b391 | 738 | } |
3e43a32a MS |
739 | else if (SYMBOL_CLASS (exp->elts[2].symbol) |
740 | == LOC_OPTIMIZED_OUT) | |
9355b391 | 741 | { |
3e43a32a MS |
742 | error (_("`%s' is optimized away " |
743 | "and cannot be collected."), | |
fff87407 | 744 | SYMBOL_PRINT_NAME (exp->elts[2].symbol)); |
9355b391 | 745 | } |
c5aa993b | 746 | } |
c906108c | 747 | |
9355b391 SS |
748 | /* We have something to collect, make sure that the expr to |
749 | bytecode translator can handle it and that it's not too | |
750 | long. */ | |
751 | aexpr = gen_trace_for_expr (loc->address, exp); | |
752 | make_cleanup_free_agent_expr (aexpr); | |
c906108c | 753 | |
9355b391 | 754 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
fff87407 | 755 | error (_("Expression is too complicated.")); |
c906108c | 756 | |
35c9c7ba | 757 | ax_reqs (aexpr); |
c906108c | 758 | |
35c9c7ba | 759 | report_agent_reqs_errors (aexpr); |
c906108c | 760 | |
9355b391 SS |
761 | do_cleanups (old_chain); |
762 | } | |
c5aa993b JM |
763 | } |
764 | while (p && *p++ == ','); | |
c906108c | 765 | } |
fff87407 | 766 | |
6da95a67 SS |
767 | else if (cmd_cfunc_eq (c, teval_pseudocommand)) |
768 | { | |
6da95a67 | 769 | do |
c378eb4e MS |
770 | { /* Repeat over a comma-separated list. */ |
771 | QUIT; /* Allow user to bail out with ^C. */ | |
6da95a67 SS |
772 | while (isspace ((int) *p)) |
773 | p++; | |
774 | ||
9355b391 | 775 | tmp_p = p; |
d9b3f62e | 776 | for (loc = t->base.loc; loc; loc = loc->next) |
9355b391 SS |
777 | { |
778 | p = tmp_p; | |
779 | /* Only expressions are allowed for this action. */ | |
780 | exp = parse_exp_1 (&p, block_for_pc (loc->address), 1); | |
781 | old_chain = make_cleanup (free_current_contents, &exp); | |
6da95a67 | 782 | |
9355b391 SS |
783 | /* We have something to evaluate, make sure that the expr to |
784 | bytecode translator can handle it and that it's not too | |
785 | long. */ | |
786 | aexpr = gen_eval_for_expr (loc->address, exp); | |
787 | make_cleanup_free_agent_expr (aexpr); | |
6da95a67 | 788 | |
9355b391 | 789 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
fff87407 SS |
790 | error (_("Expression is too complicated.")); |
791 | ||
35c9c7ba SS |
792 | ax_reqs (aexpr); |
793 | report_agent_reqs_errors (aexpr); | |
6da95a67 | 794 | |
9355b391 SS |
795 | do_cleanups (old_chain); |
796 | } | |
6da95a67 SS |
797 | } |
798 | while (p && *p++ == ','); | |
6da95a67 | 799 | } |
fff87407 | 800 | |
bbaca940 | 801 | else if (cmd_cfunc_eq (c, while_stepping_pseudocommand)) |
c906108c | 802 | { |
c378eb4e | 803 | char *steparg; /* In case warning is necessary. */ |
c906108c | 804 | |
104c1213 | 805 | while (isspace ((int) *p)) |
c906108c SS |
806 | p++; |
807 | steparg = p; | |
808 | ||
fff87407 SS |
809 | if (*p == '\0' || (t->step_count = strtol (p, &p, 0)) == 0) |
810 | error (_("while-stepping step count `%s' is malformed."), *line); | |
c906108c | 811 | } |
fff87407 | 812 | |
bbaca940 | 813 | else if (cmd_cfunc_eq (c, end_actions_pseudocommand)) |
fff87407 SS |
814 | ; |
815 | ||
c906108c | 816 | else |
fff87407 | 817 | error (_("`%s' is not a supported tracepoint action."), *line); |
74b7792f AC |
818 | } |
819 | ||
f50e79a4 JB |
820 | enum { |
821 | memrange_absolute = -1 | |
822 | }; | |
823 | ||
c5aa993b JM |
824 | struct memrange |
825 | { | |
f50e79a4 | 826 | int type; /* memrange_absolute for absolute memory range, |
c378eb4e | 827 | else basereg number. */ |
c906108c SS |
828 | bfd_signed_vma start; |
829 | bfd_signed_vma end; | |
830 | }; | |
831 | ||
c5aa993b JM |
832 | struct collection_list |
833 | { | |
549678da | 834 | unsigned char regs_mask[32]; /* room for up to 256 regs */ |
c5aa993b JM |
835 | long listsize; |
836 | long next_memrange; | |
837 | struct memrange *list; | |
838 | long aexpr_listsize; /* size of array pointed to by expr_list elt */ | |
839 | long next_aexpr_elt; | |
840 | struct agent_expr **aexpr_list; | |
841 | ||
0fb4aa4b PA |
842 | /* True is the user requested a collection of "$_sdata", "static |
843 | tracepoint data". */ | |
844 | int strace_data; | |
c5aa993b JM |
845 | } |
846 | tracepoint_list, stepping_list; | |
c906108c SS |
847 | |
848 | /* MEMRANGE functions: */ | |
849 | ||
a14ed312 | 850 | static int memrange_cmp (const void *, const void *); |
c906108c | 851 | |
c378eb4e | 852 | /* Compare memranges for qsort. */ |
c906108c | 853 | static int |
fba45db2 | 854 | memrange_cmp (const void *va, const void *vb) |
c906108c SS |
855 | { |
856 | const struct memrange *a = va, *b = vb; | |
857 | ||
858 | if (a->type < b->type) | |
859 | return -1; | |
860 | if (a->type > b->type) | |
c5aa993b | 861 | return 1; |
f50e79a4 | 862 | if (a->type == memrange_absolute) |
c906108c | 863 | { |
c5aa993b JM |
864 | if ((bfd_vma) a->start < (bfd_vma) b->start) |
865 | return -1; | |
866 | if ((bfd_vma) a->start > (bfd_vma) b->start) | |
867 | return 1; | |
c906108c SS |
868 | } |
869 | else | |
870 | { | |
c5aa993b | 871 | if (a->start < b->start) |
c906108c | 872 | return -1; |
c5aa993b JM |
873 | if (a->start > b->start) |
874 | return 1; | |
c906108c SS |
875 | } |
876 | return 0; | |
877 | } | |
878 | ||
d183932d | 879 | /* Sort the memrange list using qsort, and merge adjacent memranges. */ |
c906108c | 880 | static void |
fba45db2 | 881 | memrange_sortmerge (struct collection_list *memranges) |
c906108c SS |
882 | { |
883 | int a, b; | |
884 | ||
c5aa993b | 885 | qsort (memranges->list, memranges->next_memrange, |
c906108c SS |
886 | sizeof (struct memrange), memrange_cmp); |
887 | if (memranges->next_memrange > 0) | |
888 | { | |
889 | for (a = 0, b = 1; b < memranges->next_memrange; b++) | |
890 | { | |
1b28d0b3 PA |
891 | /* If memrange b overlaps or is adjacent to memrange a, |
892 | merge them. */ | |
893 | if (memranges->list[a].type == memranges->list[b].type | |
894 | && memranges->list[b].start <= memranges->list[a].end) | |
c906108c | 895 | { |
08807d5a PA |
896 | if (memranges->list[b].end > memranges->list[a].end) |
897 | memranges->list[a].end = memranges->list[b].end; | |
c906108c SS |
898 | continue; /* next b, same a */ |
899 | } | |
900 | a++; /* next a */ | |
901 | if (a != b) | |
c5aa993b | 902 | memcpy (&memranges->list[a], &memranges->list[b], |
c906108c SS |
903 | sizeof (struct memrange)); |
904 | } | |
905 | memranges->next_memrange = a + 1; | |
906 | } | |
907 | } | |
908 | ||
d183932d | 909 | /* Add a register to a collection list. */ |
392a587b | 910 | static void |
fba45db2 | 911 | add_register (struct collection_list *collection, unsigned int regno) |
c906108c SS |
912 | { |
913 | if (info_verbose) | |
914 | printf_filtered ("collect register %d\n", regno); | |
27e06d3e | 915 | if (regno >= (8 * sizeof (collection->regs_mask))) |
8a3fe4f8 | 916 | error (_("Internal: register number %d too large for tracepoint"), |
c906108c | 917 | regno); |
c5aa993b | 918 | collection->regs_mask[regno / 8] |= 1 << (regno % 8); |
c906108c SS |
919 | } |
920 | ||
c378eb4e | 921 | /* Add a memrange to a collection list. */ |
c906108c | 922 | static void |
d183932d MS |
923 | add_memrange (struct collection_list *memranges, |
924 | int type, bfd_signed_vma base, | |
fba45db2 | 925 | unsigned long len) |
c906108c SS |
926 | { |
927 | if (info_verbose) | |
104c1213 JM |
928 | { |
929 | printf_filtered ("(%d,", type); | |
930 | printf_vma (base); | |
931 | printf_filtered (",%ld)\n", len); | |
932 | } | |
933 | ||
f50e79a4 | 934 | /* type: memrange_absolute == memory, other n == basereg */ |
c5aa993b | 935 | memranges->list[memranges->next_memrange].type = type; |
d183932d | 936 | /* base: addr if memory, offset if reg relative. */ |
c906108c SS |
937 | memranges->list[memranges->next_memrange].start = base; |
938 | /* len: we actually save end (base + len) for convenience */ | |
c5aa993b | 939 | memranges->list[memranges->next_memrange].end = base + len; |
c906108c SS |
940 | memranges->next_memrange++; |
941 | if (memranges->next_memrange >= memranges->listsize) | |
942 | { | |
943 | memranges->listsize *= 2; | |
c5aa993b | 944 | memranges->list = xrealloc (memranges->list, |
c906108c SS |
945 | memranges->listsize); |
946 | } | |
947 | ||
3e43a32a | 948 | if (type != memrange_absolute) /* Better collect the base register! */ |
c906108c SS |
949 | add_register (memranges, type); |
950 | } | |
951 | ||
d183932d | 952 | /* Add a symbol to a collection list. */ |
c906108c | 953 | static void |
d183932d MS |
954 | collect_symbol (struct collection_list *collect, |
955 | struct symbol *sym, | |
a6d9a66e | 956 | struct gdbarch *gdbarch, |
0936ad1d SS |
957 | long frame_regno, long frame_offset, |
958 | CORE_ADDR scope) | |
c906108c | 959 | { |
c5aa993b | 960 | unsigned long len; |
104c1213 | 961 | unsigned int reg; |
c906108c | 962 | bfd_signed_vma offset; |
400c6af0 | 963 | int treat_as_expr = 0; |
c906108c | 964 | |
c5aa993b JM |
965 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
966 | switch (SYMBOL_CLASS (sym)) | |
967 | { | |
968 | default: | |
969 | printf_filtered ("%s: don't know symbol class %d\n", | |
3567439c | 970 | SYMBOL_PRINT_NAME (sym), |
d183932d | 971 | SYMBOL_CLASS (sym)); |
c5aa993b JM |
972 | break; |
973 | case LOC_CONST: | |
104c1213 | 974 | printf_filtered ("constant %s (value %ld) will not be collected.\n", |
3567439c | 975 | SYMBOL_PRINT_NAME (sym), SYMBOL_VALUE (sym)); |
c5aa993b JM |
976 | break; |
977 | case LOC_STATIC: | |
978 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
979 | if (info_verbose) | |
104c1213 JM |
980 | { |
981 | char tmp[40]; | |
982 | ||
983 | sprintf_vma (tmp, offset); | |
984 | printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", | |
3567439c | 985 | SYMBOL_PRINT_NAME (sym), len, |
d183932d | 986 | tmp /* address */); |
104c1213 | 987 | } |
400c6af0 SS |
988 | /* A struct may be a C++ class with static fields, go to general |
989 | expression handling. */ | |
990 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT) | |
991 | treat_as_expr = 1; | |
992 | else | |
993 | add_memrange (collect, memrange_absolute, offset, len); | |
c5aa993b JM |
994 | break; |
995 | case LOC_REGISTER: | |
a6d9a66e | 996 | reg = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); |
c5aa993b | 997 | if (info_verbose) |
d183932d | 998 | printf_filtered ("LOC_REG[parm] %s: ", |
3567439c | 999 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 1000 | add_register (collect, reg); |
d183932d MS |
1001 | /* Check for doubles stored in two registers. */ |
1002 | /* FIXME: how about larger types stored in 3 or more regs? */ | |
c5aa993b | 1003 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT && |
a6d9a66e | 1004 | len > register_size (gdbarch, reg)) |
c5aa993b JM |
1005 | add_register (collect, reg + 1); |
1006 | break; | |
1007 | case LOC_REF_ARG: | |
1008 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); | |
1009 | printf_filtered (" (will not collect %s)\n", | |
3567439c | 1010 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
1011 | break; |
1012 | case LOC_ARG: | |
1013 | reg = frame_regno; | |
1014 | offset = frame_offset + SYMBOL_VALUE (sym); | |
1015 | if (info_verbose) | |
1016 | { | |
104c1213 | 1017 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 1018 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
1019 | printf_vma (offset); |
1020 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
1021 | } |
1022 | add_memrange (collect, reg, offset, len); | |
1023 | break; | |
1024 | case LOC_REGPARM_ADDR: | |
1025 | reg = SYMBOL_VALUE (sym); | |
1026 | offset = 0; | |
1027 | if (info_verbose) | |
1028 | { | |
104c1213 | 1029 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ", |
3567439c | 1030 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
1031 | printf_vma (offset); |
1032 | printf_filtered (" from reg %d\n", reg); | |
c5aa993b JM |
1033 | } |
1034 | add_memrange (collect, reg, offset, len); | |
1035 | break; | |
1036 | case LOC_LOCAL: | |
c5aa993b JM |
1037 | reg = frame_regno; |
1038 | offset = frame_offset + SYMBOL_VALUE (sym); | |
1039 | if (info_verbose) | |
1040 | { | |
104c1213 | 1041 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 1042 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
1043 | printf_vma (offset); |
1044 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
1045 | } |
1046 | add_memrange (collect, reg, offset, len); | |
1047 | break; | |
a0405854 | 1048 | |
c5aa993b | 1049 | case LOC_UNRESOLVED: |
a0405854 | 1050 | treat_as_expr = 1; |
c5aa993b | 1051 | break; |
a0405854 | 1052 | |
c5aa993b | 1053 | case LOC_OPTIMIZED_OUT: |
8e1a459b | 1054 | printf_filtered ("%s has been optimized out of existence.\n", |
3567439c | 1055 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 1056 | break; |
0936ad1d SS |
1057 | |
1058 | case LOC_COMPUTED: | |
400c6af0 | 1059 | treat_as_expr = 1; |
0936ad1d | 1060 | break; |
c5aa993b | 1061 | } |
400c6af0 SS |
1062 | |
1063 | /* Expressions are the most general case. */ | |
1064 | if (treat_as_expr) | |
1065 | { | |
1066 | struct agent_expr *aexpr; | |
1067 | struct cleanup *old_chain1 = NULL; | |
400c6af0 SS |
1068 | |
1069 | aexpr = gen_trace_for_var (scope, gdbarch, sym); | |
1070 | ||
1071 | /* It can happen that the symbol is recorded as a computed | |
1072 | location, but it's been optimized away and doesn't actually | |
1073 | have a location expression. */ | |
1074 | if (!aexpr) | |
1075 | { | |
1076 | printf_filtered ("%s has been optimized out of existence.\n", | |
1077 | SYMBOL_PRINT_NAME (sym)); | |
1078 | return; | |
1079 | } | |
1080 | ||
1081 | old_chain1 = make_cleanup_free_agent_expr (aexpr); | |
1082 | ||
35c9c7ba | 1083 | ax_reqs (aexpr); |
fff87407 | 1084 | |
35c9c7ba | 1085 | report_agent_reqs_errors (aexpr); |
400c6af0 SS |
1086 | |
1087 | discard_cleanups (old_chain1); | |
1088 | add_aexpr (collect, aexpr); | |
1089 | ||
c378eb4e | 1090 | /* Take care of the registers. */ |
35c9c7ba | 1091 | if (aexpr->reg_mask_len > 0) |
400c6af0 SS |
1092 | { |
1093 | int ndx1, ndx2; | |
1094 | ||
35c9c7ba | 1095 | for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++) |
400c6af0 | 1096 | { |
c378eb4e | 1097 | QUIT; /* Allow user to bail out with ^C. */ |
35c9c7ba | 1098 | if (aexpr->reg_mask[ndx1] != 0) |
400c6af0 | 1099 | { |
c378eb4e | 1100 | /* Assume chars have 8 bits. */ |
400c6af0 | 1101 | for (ndx2 = 0; ndx2 < 8; ndx2++) |
35c9c7ba | 1102 | if (aexpr->reg_mask[ndx1] & (1 << ndx2)) |
c378eb4e | 1103 | /* It's used -- record it. */ |
400c6af0 SS |
1104 | add_register (collect, ndx1 * 8 + ndx2); |
1105 | } | |
1106 | } | |
1107 | } | |
1108 | } | |
c906108c SS |
1109 | } |
1110 | ||
2c58c0a9 PA |
1111 | /* Data to be passed around in the calls to the locals and args |
1112 | iterators. */ | |
1113 | ||
1114 | struct add_local_symbols_data | |
1115 | { | |
1116 | struct collection_list *collect; | |
1117 | struct gdbarch *gdbarch; | |
1118 | CORE_ADDR pc; | |
1119 | long frame_regno; | |
1120 | long frame_offset; | |
1121 | int count; | |
1122 | }; | |
1123 | ||
c378eb4e | 1124 | /* The callback for the locals and args iterators. */ |
2c58c0a9 PA |
1125 | |
1126 | static void | |
1127 | do_collect_symbol (const char *print_name, | |
1128 | struct symbol *sym, | |
1129 | void *cb_data) | |
1130 | { | |
1131 | struct add_local_symbols_data *p = cb_data; | |
1132 | ||
1133 | collect_symbol (p->collect, sym, p->gdbarch, p->frame_regno, | |
1134 | p->frame_offset, p->pc); | |
1135 | p->count++; | |
1136 | } | |
1137 | ||
c378eb4e | 1138 | /* Add all locals (or args) symbols to collection list. */ |
c906108c | 1139 | static void |
a6d9a66e UW |
1140 | add_local_symbols (struct collection_list *collect, |
1141 | struct gdbarch *gdbarch, CORE_ADDR pc, | |
fba45db2 | 1142 | long frame_regno, long frame_offset, int type) |
c906108c | 1143 | { |
c5aa993b | 1144 | struct block *block; |
2c58c0a9 PA |
1145 | struct add_local_symbols_data cb_data; |
1146 | ||
1147 | cb_data.collect = collect; | |
1148 | cb_data.gdbarch = gdbarch; | |
1149 | cb_data.pc = pc; | |
1150 | cb_data.frame_regno = frame_regno; | |
1151 | cb_data.frame_offset = frame_offset; | |
1152 | cb_data.count = 0; | |
c906108c | 1153 | |
2c58c0a9 | 1154 | if (type == 'L') |
c906108c | 1155 | { |
2c58c0a9 PA |
1156 | block = block_for_pc (pc); |
1157 | if (block == NULL) | |
c906108c | 1158 | { |
2c58c0a9 PA |
1159 | warning (_("Can't collect locals; " |
1160 | "no symbol table info available.\n")); | |
1161 | return; | |
c906108c | 1162 | } |
2c58c0a9 PA |
1163 | |
1164 | iterate_over_block_local_vars (block, do_collect_symbol, &cb_data); | |
1165 | if (cb_data.count == 0) | |
1166 | warning (_("No locals found in scope.")); | |
1167 | } | |
1168 | else | |
1169 | { | |
1170 | pc = get_pc_function_start (pc); | |
1171 | block = block_for_pc (pc); | |
1172 | if (block == NULL) | |
1173 | { | |
b37520b6 | 1174 | warning (_("Can't collect args; no symbol table info available.")); |
2c58c0a9 PA |
1175 | return; |
1176 | } | |
1177 | ||
1178 | iterate_over_block_arg_vars (block, do_collect_symbol, &cb_data); | |
1179 | if (cb_data.count == 0) | |
1180 | warning (_("No args found in scope.")); | |
c906108c | 1181 | } |
c906108c SS |
1182 | } |
1183 | ||
0fb4aa4b PA |
1184 | static void |
1185 | add_static_trace_data (struct collection_list *collection) | |
1186 | { | |
1187 | if (info_verbose) | |
1188 | printf_filtered ("collect static trace data\n"); | |
1189 | collection->strace_data = 1; | |
1190 | } | |
1191 | ||
c906108c SS |
1192 | /* worker function */ |
1193 | static void | |
fba45db2 | 1194 | clear_collection_list (struct collection_list *list) |
c906108c SS |
1195 | { |
1196 | int ndx; | |
1197 | ||
1198 | list->next_memrange = 0; | |
1199 | for (ndx = 0; ndx < list->next_aexpr_elt; ndx++) | |
1200 | { | |
c5aa993b | 1201 | free_agent_expr (list->aexpr_list[ndx]); |
c906108c SS |
1202 | list->aexpr_list[ndx] = NULL; |
1203 | } | |
1204 | list->next_aexpr_elt = 0; | |
1205 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); | |
0fb4aa4b | 1206 | list->strace_data = 0; |
c906108c SS |
1207 | } |
1208 | ||
c378eb4e | 1209 | /* Reduce a collection list to string form (for gdb protocol). */ |
c906108c | 1210 | static char ** |
fba45db2 | 1211 | stringify_collection_list (struct collection_list *list, char *string) |
c906108c SS |
1212 | { |
1213 | char temp_buf[2048]; | |
104c1213 | 1214 | char tmp2[40]; |
c906108c SS |
1215 | int count; |
1216 | int ndx = 0; | |
1217 | char *(*str_list)[]; | |
1218 | char *end; | |
c5aa993b | 1219 | long i; |
c906108c | 1220 | |
0fb4aa4b | 1221 | count = 1 + 1 + list->next_memrange + list->next_aexpr_elt + 1; |
c5aa993b | 1222 | str_list = (char *(*)[]) xmalloc (count * sizeof (char *)); |
c906108c | 1223 | |
0fb4aa4b PA |
1224 | if (list->strace_data) |
1225 | { | |
1226 | if (info_verbose) | |
1227 | printf_filtered ("\nCollecting static trace data\n"); | |
1228 | end = temp_buf; | |
1229 | *end++ = 'L'; | |
1230 | (*str_list)[ndx] = savestring (temp_buf, end - temp_buf); | |
1231 | ndx++; | |
1232 | } | |
1233 | ||
c906108c | 1234 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) |
c378eb4e | 1235 | if (list->regs_mask[i] != 0) /* Skip leading zeroes in regs_mask. */ |
c906108c | 1236 | break; |
c378eb4e | 1237 | if (list->regs_mask[i] != 0) /* Prepare to send regs_mask to the stub. */ |
c906108c SS |
1238 | { |
1239 | if (info_verbose) | |
1240 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
1241 | end = temp_buf; | |
c5aa993b | 1242 | *end++ = 'R'; |
c906108c SS |
1243 | for (; i >= 0; i--) |
1244 | { | |
c378eb4e | 1245 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c SS |
1246 | if (info_verbose) |
1247 | printf_filtered ("%02X", list->regs_mask[i]); | |
c5aa993b | 1248 | sprintf (end, "%02X", list->regs_mask[i]); |
c906108c SS |
1249 | end += 2; |
1250 | } | |
1b36a34b | 1251 | (*str_list)[ndx] = xstrdup (temp_buf); |
c906108c SS |
1252 | ndx++; |
1253 | } | |
1254 | if (info_verbose) | |
1255 | printf_filtered ("\n"); | |
1256 | if (list->next_memrange > 0 && info_verbose) | |
1257 | printf_filtered ("Collecting memranges: \n"); | |
1258 | for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++) | |
1259 | { | |
c378eb4e | 1260 | QUIT; /* Allow user to bail out with ^C. */ |
104c1213 | 1261 | sprintf_vma (tmp2, list->list[i].start); |
c906108c | 1262 | if (info_verbose) |
104c1213 JM |
1263 | { |
1264 | printf_filtered ("(%d, %s, %ld)\n", | |
1265 | list->list[i].type, | |
1266 | tmp2, | |
1267 | (long) (list->list[i].end - list->list[i].start)); | |
1268 | } | |
c906108c SS |
1269 | if (count + 27 > MAX_AGENT_EXPR_LEN) |
1270 | { | |
c5aa993b | 1271 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1272 | ndx++; |
1273 | count = 0; | |
1274 | end = temp_buf; | |
1275 | } | |
104c1213 | 1276 | |
d1948716 JB |
1277 | { |
1278 | bfd_signed_vma length = list->list[i].end - list->list[i].start; | |
1279 | ||
1280 | /* The "%X" conversion specifier expects an unsigned argument, | |
f50e79a4 JB |
1281 | so passing -1 (memrange_absolute) to it directly gives you |
1282 | "FFFFFFFF" (or more, depending on sizeof (unsigned)). | |
1283 | Special-case it. */ | |
1284 | if (list->list[i].type == memrange_absolute) | |
d1948716 JB |
1285 | sprintf (end, "M-1,%s,%lX", tmp2, (long) length); |
1286 | else | |
1287 | sprintf (end, "M%X,%s,%lX", list->list[i].type, tmp2, (long) length); | |
1288 | } | |
104c1213 | 1289 | |
c906108c | 1290 | count += strlen (end); |
3ffbc0a5 | 1291 | end = temp_buf + count; |
c906108c SS |
1292 | } |
1293 | ||
1294 | for (i = 0; i < list->next_aexpr_elt; i++) | |
1295 | { | |
c378eb4e | 1296 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c SS |
1297 | if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN) |
1298 | { | |
c5aa993b | 1299 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1300 | ndx++; |
1301 | count = 0; | |
1302 | end = temp_buf; | |
1303 | } | |
1304 | sprintf (end, "X%08X,", list->aexpr_list[i]->len); | |
1305 | end += 10; /* 'X' + 8 hex digits + ',' */ | |
1306 | count += 10; | |
1307 | ||
d183932d MS |
1308 | end = mem2hex (list->aexpr_list[i]->buf, |
1309 | end, list->aexpr_list[i]->len); | |
c906108c SS |
1310 | count += 2 * list->aexpr_list[i]->len; |
1311 | } | |
1312 | ||
1313 | if (count != 0) | |
1314 | { | |
c5aa993b | 1315 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1316 | ndx++; |
1317 | count = 0; | |
1318 | end = temp_buf; | |
1319 | } | |
1320 | (*str_list)[ndx] = NULL; | |
1321 | ||
1322 | if (ndx == 0) | |
27e06d3e | 1323 | { |
6c761d9c | 1324 | xfree (str_list); |
27e06d3e MS |
1325 | return NULL; |
1326 | } | |
c906108c SS |
1327 | else |
1328 | return *str_list; | |
1329 | } | |
1330 | ||
a7bdde9e VP |
1331 | |
1332 | static void | |
1333 | encode_actions_1 (struct command_line *action, | |
1334 | struct breakpoint *t, | |
1335 | struct bp_location *tloc, | |
1336 | int frame_reg, | |
1337 | LONGEST frame_offset, | |
1338 | struct collection_list *collect, | |
1339 | struct collection_list *stepping_list) | |
c906108c | 1340 | { |
c5aa993b JM |
1341 | char *action_exp; |
1342 | struct expression *exp = NULL; | |
104c1213 | 1343 | int i; |
f976f6d4 | 1344 | struct value *tempval; |
c906108c SS |
1345 | struct cmd_list_element *cmd; |
1346 | struct agent_expr *aexpr; | |
236f1d4d SS |
1347 | |
1348 | for (; action; action = action->next) | |
c906108c | 1349 | { |
c378eb4e | 1350 | QUIT; /* Allow user to bail out with ^C. */ |
a7bdde9e | 1351 | action_exp = action->line; |
104c1213 | 1352 | while (isspace ((int) *action_exp)) |
c906108c SS |
1353 | action_exp++; |
1354 | ||
c906108c SS |
1355 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
1356 | if (cmd == 0) | |
8a3fe4f8 | 1357 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 1358 | |
bbaca940 | 1359 | if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c | 1360 | { |
3065dfb6 SS |
1361 | trace_string_kludge = 0; |
1362 | if (*action_exp == '/') | |
1363 | action_exp = decode_agent_options (action_exp); | |
1364 | ||
c5aa993b | 1365 | do |
c378eb4e MS |
1366 | { /* Repeat over a comma-separated list. */ |
1367 | QUIT; /* Allow user to bail out with ^C. */ | |
104c1213 | 1368 | while (isspace ((int) *action_exp)) |
c5aa993b | 1369 | action_exp++; |
c906108c | 1370 | |
c5aa993b JM |
1371 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1372 | { | |
a6d9a66e | 1373 | for (i = 0; i < gdbarch_num_regs (t->gdbarch); i++) |
c5aa993b JM |
1374 | add_register (collect, i); |
1375 | action_exp = strchr (action_exp, ','); /* more? */ | |
1376 | } | |
1377 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1378 | { | |
1379 | add_local_symbols (collect, | |
a6d9a66e | 1380 | t->gdbarch, |
9355b391 | 1381 | tloc->address, |
c5aa993b JM |
1382 | frame_reg, |
1383 | frame_offset, | |
1384 | 'A'); | |
1385 | action_exp = strchr (action_exp, ','); /* more? */ | |
1386 | } | |
1387 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1388 | { | |
1389 | add_local_symbols (collect, | |
a6d9a66e | 1390 | t->gdbarch, |
9355b391 | 1391 | tloc->address, |
c5aa993b JM |
1392 | frame_reg, |
1393 | frame_offset, | |
1394 | 'L'); | |
1395 | action_exp = strchr (action_exp, ','); /* more? */ | |
1396 | } | |
6710bf39 SS |
1397 | else if (0 == strncasecmp ("$_ret", action_exp, 5)) |
1398 | { | |
1399 | struct cleanup *old_chain1 = NULL; | |
1400 | ||
1401 | aexpr = gen_trace_for_return_address (tloc->address, | |
1402 | t->gdbarch); | |
1403 | ||
1404 | old_chain1 = make_cleanup_free_agent_expr (aexpr); | |
1405 | ||
1406 | ax_reqs (aexpr); | |
1407 | report_agent_reqs_errors (aexpr); | |
1408 | ||
1409 | discard_cleanups (old_chain1); | |
1410 | add_aexpr (collect, aexpr); | |
1411 | ||
1412 | /* take care of the registers */ | |
1413 | if (aexpr->reg_mask_len > 0) | |
1414 | { | |
1415 | int ndx1, ndx2; | |
1416 | ||
1417 | for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++) | |
1418 | { | |
1419 | QUIT; /* allow user to bail out with ^C */ | |
1420 | if (aexpr->reg_mask[ndx1] != 0) | |
1421 | { | |
1422 | /* assume chars have 8 bits */ | |
1423 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
1424 | if (aexpr->reg_mask[ndx1] & (1 << ndx2)) | |
1425 | /* it's used -- record it */ | |
1426 | add_register (collect, | |
1427 | ndx1 * 8 + ndx2); | |
1428 | } | |
1429 | } | |
1430 | } | |
1431 | ||
1432 | action_exp = strchr (action_exp, ','); /* more? */ | |
1433 | } | |
0fb4aa4b PA |
1434 | else if (0 == strncasecmp ("$_sdata", action_exp, 7)) |
1435 | { | |
1436 | add_static_trace_data (collect); | |
1437 | action_exp = strchr (action_exp, ','); /* more? */ | |
1438 | } | |
c5aa993b JM |
1439 | else |
1440 | { | |
1441 | unsigned long addr, len; | |
1442 | struct cleanup *old_chain = NULL; | |
1443 | struct cleanup *old_chain1 = NULL; | |
c5aa993b | 1444 | |
75ac9d7b | 1445 | exp = parse_exp_1 (&action_exp, |
9355b391 | 1446 | block_for_pc (tloc->address), 1); |
74b7792f | 1447 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 1448 | |
c5aa993b JM |
1449 | switch (exp->elts[0].opcode) |
1450 | { | |
1451 | case OP_REGISTER: | |
67f3407f DJ |
1452 | { |
1453 | const char *name = &exp->elts[2].string; | |
1454 | ||
a6d9a66e | 1455 | i = user_reg_map_name_to_regnum (t->gdbarch, |
029a67e4 | 1456 | name, strlen (name)); |
67f3407f DJ |
1457 | if (i == -1) |
1458 | internal_error (__FILE__, __LINE__, | |
1459 | _("Register $%s not available"), | |
1460 | name); | |
1461 | if (info_verbose) | |
1462 | printf_filtered ("OP_REGISTER: "); | |
1463 | add_register (collect, i); | |
1464 | break; | |
1465 | } | |
c5aa993b JM |
1466 | |
1467 | case UNOP_MEMVAL: | |
c378eb4e | 1468 | /* Safe because we know it's a simple expression. */ |
c5aa993b | 1469 | tempval = evaluate_expression (exp); |
42ae5230 | 1470 | addr = value_address (tempval); |
c5aa993b | 1471 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); |
f50e79a4 | 1472 | add_memrange (collect, memrange_absolute, addr, len); |
c5aa993b JM |
1473 | break; |
1474 | ||
1475 | case OP_VAR_VALUE: | |
1476 | collect_symbol (collect, | |
1477 | exp->elts[2].symbol, | |
a6d9a66e | 1478 | t->gdbarch, |
c5aa993b | 1479 | frame_reg, |
0936ad1d | 1480 | frame_offset, |
9355b391 | 1481 | tloc->address); |
c5aa993b JM |
1482 | break; |
1483 | ||
c378eb4e | 1484 | default: /* Full-fledged expression. */ |
9355b391 | 1485 | aexpr = gen_trace_for_expr (tloc->address, exp); |
c5aa993b | 1486 | |
f23d52e0 | 1487 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
c5aa993b | 1488 | |
35c9c7ba | 1489 | ax_reqs (aexpr); |
c5aa993b | 1490 | |
35c9c7ba | 1491 | report_agent_reqs_errors (aexpr); |
c5aa993b JM |
1492 | |
1493 | discard_cleanups (old_chain1); | |
1494 | add_aexpr (collect, aexpr); | |
1495 | ||
c378eb4e | 1496 | /* Take care of the registers. */ |
35c9c7ba | 1497 | if (aexpr->reg_mask_len > 0) |
c906108c | 1498 | { |
c5aa993b JM |
1499 | int ndx1; |
1500 | int ndx2; | |
1501 | ||
35c9c7ba | 1502 | for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++) |
c906108c | 1503 | { |
c378eb4e | 1504 | QUIT; /* Allow user to bail out with ^C. */ |
35c9c7ba | 1505 | if (aexpr->reg_mask[ndx1] != 0) |
c5aa993b | 1506 | { |
c378eb4e | 1507 | /* Assume chars have 8 bits. */ |
c5aa993b | 1508 | for (ndx2 = 0; ndx2 < 8; ndx2++) |
35c9c7ba | 1509 | if (aexpr->reg_mask[ndx1] & (1 << ndx2)) |
c378eb4e | 1510 | /* It's used -- record it. */ |
d183932d MS |
1511 | add_register (collect, |
1512 | ndx1 * 8 + ndx2); | |
c5aa993b | 1513 | } |
c906108c SS |
1514 | } |
1515 | } | |
c5aa993b JM |
1516 | break; |
1517 | } /* switch */ | |
1518 | do_cleanups (old_chain); | |
1519 | } /* do */ | |
1520 | } | |
1521 | while (action_exp && *action_exp++ == ','); | |
1522 | } /* if */ | |
6da95a67 SS |
1523 | else if (cmd_cfunc_eq (cmd, teval_pseudocommand)) |
1524 | { | |
1525 | do | |
c378eb4e MS |
1526 | { /* Repeat over a comma-separated list. */ |
1527 | QUIT; /* Allow user to bail out with ^C. */ | |
6da95a67 SS |
1528 | while (isspace ((int) *action_exp)) |
1529 | action_exp++; | |
1530 | ||
1531 | { | |
6da95a67 SS |
1532 | struct cleanup *old_chain = NULL; |
1533 | struct cleanup *old_chain1 = NULL; | |
6da95a67 SS |
1534 | |
1535 | exp = parse_exp_1 (&action_exp, | |
9355b391 | 1536 | block_for_pc (tloc->address), 1); |
6da95a67 SS |
1537 | old_chain = make_cleanup (free_current_contents, &exp); |
1538 | ||
9355b391 | 1539 | aexpr = gen_eval_for_expr (tloc->address, exp); |
6da95a67 SS |
1540 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
1541 | ||
35c9c7ba SS |
1542 | ax_reqs (aexpr); |
1543 | report_agent_reqs_errors (aexpr); | |
6da95a67 SS |
1544 | |
1545 | discard_cleanups (old_chain1); | |
1546 | /* Even though we're not officially collecting, add | |
1547 | to the collect list anyway. */ | |
1548 | add_aexpr (collect, aexpr); | |
1549 | ||
1550 | do_cleanups (old_chain); | |
1551 | } /* do */ | |
1552 | } | |
1553 | while (action_exp && *action_exp++ == ','); | |
1554 | } /* if */ | |
bbaca940 | 1555 | else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 1556 | { |
a7bdde9e VP |
1557 | /* We check against nested while-stepping when setting |
1558 | breakpoint action, so no way to run into nested | |
1559 | here. */ | |
1560 | gdb_assert (stepping_list); | |
1561 | ||
2a2287c7 MS |
1562 | encode_actions_1 (action->body_list[0], t, tloc, frame_reg, |
1563 | frame_offset, stepping_list, NULL); | |
c906108c | 1564 | } |
a7bdde9e VP |
1565 | else |
1566 | error (_("Invalid tracepoint command '%s'"), action->line); | |
1567 | } /* for */ | |
1568 | } | |
1569 | ||
1570 | /* Render all actions into gdb protocol. */ | |
1571 | /*static*/ void | |
1572 | encode_actions (struct breakpoint *t, struct bp_location *tloc, | |
1573 | char ***tdp_actions, char ***stepping_actions) | |
1574 | { | |
1575 | static char tdp_buff[2048], step_buff[2048]; | |
1576 | char *default_collect_line = NULL; | |
1577 | struct command_line *actions; | |
1578 | struct command_line *default_collect_action = NULL; | |
1579 | int frame_reg; | |
1580 | LONGEST frame_offset; | |
1581 | struct cleanup *back_to; | |
1582 | ||
1583 | back_to = make_cleanup (null_cleanup, NULL); | |
1584 | ||
1585 | clear_collection_list (&tracepoint_list); | |
1586 | clear_collection_list (&stepping_list); | |
1587 | ||
1588 | *tdp_actions = NULL; | |
1589 | *stepping_actions = NULL; | |
1590 | ||
1591 | gdbarch_virtual_frame_pointer (t->gdbarch, | |
1592 | t->loc->address, &frame_reg, &frame_offset); | |
1593 | ||
5cea2a26 | 1594 | actions = breakpoint_commands (t); |
a7bdde9e VP |
1595 | |
1596 | /* If there are default expressions to collect, make up a collect | |
1597 | action and prepend to the action list to encode. Note that since | |
1598 | validation is per-tracepoint (local var "xyz" might be valid for | |
1599 | one tracepoint and not another, etc), we make up the action on | |
1600 | the fly, and don't cache it. */ | |
1601 | if (*default_collect) | |
1602 | { | |
1603 | char *line; | |
a7bdde9e VP |
1604 | |
1605 | default_collect_line = xstrprintf ("collect %s", default_collect); | |
1606 | make_cleanup (xfree, default_collect_line); | |
1607 | ||
1608 | line = default_collect_line; | |
fff87407 SS |
1609 | validate_actionline (&line, t); |
1610 | ||
1611 | default_collect_action = xmalloc (sizeof (struct command_line)); | |
1612 | make_cleanup (xfree, default_collect_action); | |
5cea2a26 | 1613 | default_collect_action->next = actions; |
fff87407 SS |
1614 | default_collect_action->line = line; |
1615 | actions = default_collect_action; | |
a7bdde9e VP |
1616 | } |
1617 | encode_actions_1 (actions, t, tloc, frame_reg, frame_offset, | |
1618 | &tracepoint_list, &stepping_list); | |
1619 | ||
c5aa993b JM |
1620 | memrange_sortmerge (&tracepoint_list); |
1621 | memrange_sortmerge (&stepping_list); | |
c906108c | 1622 | |
a7bdde9e | 1623 | *tdp_actions = stringify_collection_list (&tracepoint_list, |
d183932d | 1624 | tdp_buff); |
a7bdde9e | 1625 | *stepping_actions = stringify_collection_list (&stepping_list, |
d183932d | 1626 | step_buff); |
236f1d4d | 1627 | |
a7bdde9e | 1628 | do_cleanups (back_to); |
c906108c SS |
1629 | } |
1630 | ||
1631 | static void | |
fba45db2 | 1632 | add_aexpr (struct collection_list *collect, struct agent_expr *aexpr) |
c906108c SS |
1633 | { |
1634 | if (collect->next_aexpr_elt >= collect->aexpr_listsize) | |
1635 | { | |
1636 | collect->aexpr_list = | |
1637 | xrealloc (collect->aexpr_list, | |
5d502164 | 1638 | 2 * collect->aexpr_listsize * sizeof (struct agent_expr *)); |
c906108c SS |
1639 | collect->aexpr_listsize *= 2; |
1640 | } | |
1641 | collect->aexpr_list[collect->next_aexpr_elt] = aexpr; | |
1642 | collect->next_aexpr_elt++; | |
1643 | } | |
1644 | ||
c5aa993b | 1645 | |
f224b49d VP |
1646 | void |
1647 | start_tracing (void) | |
d183932d | 1648 | { |
1042e4c0 SS |
1649 | VEC(breakpoint_p) *tp_vec = NULL; |
1650 | int ix; | |
d9b3f62e | 1651 | struct breakpoint *b; |
f61e138d | 1652 | struct trace_state_variable *tsv; |
d914c394 | 1653 | int any_enabled = 0, num_to_download = 0; |
35b1e5cc SS |
1654 | |
1655 | tp_vec = all_tracepoints (); | |
76a2b958 | 1656 | |
c378eb4e | 1657 | /* No point in tracing without any tracepoints... */ |
76a2b958 SS |
1658 | if (VEC_length (breakpoint_p, tp_vec) == 0) |
1659 | { | |
1660 | VEC_free (breakpoint_p, tp_vec); | |
1661 | error (_("No tracepoints defined, not starting trace")); | |
1662 | } | |
1663 | ||
d9b3f62e | 1664 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++) |
76a2b958 | 1665 | { |
d9b3f62e PA |
1666 | struct tracepoint *t = (struct tracepoint *) b; |
1667 | ||
1668 | if (b->enable_state == bp_enabled) | |
d914c394 SS |
1669 | any_enabled = 1; |
1670 | ||
d9b3f62e | 1671 | if ((b->type == bp_fast_tracepoint |
d914c394 SS |
1672 | ? may_insert_fast_tracepoints |
1673 | : may_insert_tracepoints)) | |
1674 | ++num_to_download; | |
1675 | else | |
1676 | warning (_("May not insert %stracepoints, skipping tracepoint %d"), | |
d9b3f62e | 1677 | (b->type == bp_fast_tracepoint ? "fast " : ""), b->number); |
76a2b958 SS |
1678 | } |
1679 | ||
76a2b958 SS |
1680 | if (!any_enabled) |
1681 | { | |
d248b706 KY |
1682 | if (target_supports_enable_disable_tracepoint ()) |
1683 | warning (_("No tracepoints enabled")); | |
1684 | else | |
1685 | { | |
1686 | /* No point in tracing with only disabled tracepoints that | |
1687 | cannot be re-enabled. */ | |
1688 | VEC_free (breakpoint_p, tp_vec); | |
1689 | error (_("No tracepoints enabled, not starting trace")); | |
1690 | } | |
76a2b958 SS |
1691 | } |
1692 | ||
d914c394 SS |
1693 | if (num_to_download <= 0) |
1694 | { | |
1695 | VEC_free (breakpoint_p, tp_vec); | |
1696 | error (_("No tracepoints that may be downloaded, not starting trace")); | |
1697 | } | |
1698 | ||
76a2b958 SS |
1699 | target_trace_init (); |
1700 | ||
d9b3f62e | 1701 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++) |
7a697b8d | 1702 | { |
d9b3f62e PA |
1703 | struct tracepoint *t = (struct tracepoint *) b; |
1704 | ||
1705 | if ((b->type == bp_fast_tracepoint | |
d914c394 SS |
1706 | ? !may_insert_fast_tracepoints |
1707 | : !may_insert_tracepoints)) | |
1708 | continue; | |
1709 | ||
35b1e5cc | 1710 | t->number_on_target = 0; |
d9b3f62e PA |
1711 | target_download_tracepoint (b); |
1712 | t->number_on_target = b->number; | |
7a697b8d | 1713 | } |
35b1e5cc | 1714 | VEC_free (breakpoint_p, tp_vec); |
76a2b958 | 1715 | |
00bf0b85 | 1716 | /* Send down all the trace state variables too. */ |
35b1e5cc | 1717 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) |
782b2b07 | 1718 | { |
00bf0b85 | 1719 | target_download_trace_state_variable (tsv); |
782b2b07 | 1720 | } |
35b1e5cc SS |
1721 | |
1722 | /* Tell target to treat text-like sections as transparent. */ | |
1723 | target_trace_set_readonly_regions (); | |
4daf5ac0 SS |
1724 | /* Set some mode flags. */ |
1725 | target_set_disconnected_tracing (disconnected_tracing); | |
1726 | target_set_circular_trace_buffer (circular_trace_buffer); | |
1042e4c0 | 1727 | |
35b1e5cc SS |
1728 | /* Now insert traps and begin collecting data. */ |
1729 | target_trace_start (); | |
1042e4c0 | 1730 | |
35b1e5cc SS |
1731 | /* Reset our local state. */ |
1732 | set_traceframe_num (-1); | |
1733 | set_tracepoint_num (-1); | |
1734 | set_traceframe_context (NULL); | |
00bf0b85 | 1735 | current_trace_status()->running = 1; |
b3b9301e | 1736 | clear_traceframe_info (); |
1042e4c0 SS |
1737 | } |
1738 | ||
f224b49d VP |
1739 | /* tstart command: |
1740 | ||
1741 | Tell target to clear any previous trace experiment. | |
1742 | Walk the list of tracepoints, and send them (and their actions) | |
1743 | to the target. If no errors, | |
1744 | Tell target to start a new trace experiment. */ | |
1745 | ||
1746 | static void | |
1747 | trace_start_command (char *args, int from_tty) | |
1748 | { | |
1749 | dont_repeat (); /* Like "run", dangerous to repeat accidentally. */ | |
1750 | ||
615bcdef SS |
1751 | if (current_trace_status ()->running) |
1752 | { | |
1753 | if (from_tty | |
1754 | && !query (_("A trace is running already. Start a new run? "))) | |
1755 | error (_("New trace run not started.")); | |
1756 | } | |
1757 | ||
f224b49d VP |
1758 | start_tracing (); |
1759 | } | |
1760 | ||
c906108c SS |
1761 | /* tstop command */ |
1762 | static void | |
fba45db2 | 1763 | trace_stop_command (char *args, int from_tty) |
d183932d | 1764 | { |
615bcdef SS |
1765 | if (!current_trace_status ()->running) |
1766 | error (_("Trace is not running.")); | |
1767 | ||
35b1e5cc | 1768 | stop_tracing (); |
c906108c SS |
1769 | } |
1770 | ||
d5551862 | 1771 | void |
f224b49d | 1772 | stop_tracing (void) |
d5551862 | 1773 | { |
35b1e5cc | 1774 | target_trace_stop (); |
c378eb4e | 1775 | /* Should change in response to reply? */ |
00bf0b85 | 1776 | current_trace_status ()->running = 0; |
d5551862 SS |
1777 | } |
1778 | ||
c906108c SS |
1779 | /* tstatus command */ |
1780 | static void | |
fba45db2 | 1781 | trace_status_command (char *args, int from_tty) |
d183932d | 1782 | { |
00bf0b85 SS |
1783 | struct trace_status *ts = current_trace_status (); |
1784 | int status; | |
35b1e5cc | 1785 | |
00bf0b85 SS |
1786 | status = target_get_trace_status (ts); |
1787 | ||
1788 | if (status == -1) | |
1789 | { | |
1790 | if (ts->from_file) | |
1791 | printf_filtered (_("Using a trace file.\n")); | |
1792 | else | |
1793 | { | |
1794 | printf_filtered (_("Trace can not be run on this target.\n")); | |
1795 | return; | |
1796 | } | |
1797 | } | |
1798 | ||
1799 | if (!ts->running_known) | |
1800 | { | |
1801 | printf_filtered (_("Run/stop status is unknown.\n")); | |
1802 | } | |
1803 | else if (ts->running) | |
c906108c | 1804 | { |
35b1e5cc | 1805 | printf_filtered (_("Trace is running on the target.\n")); |
c906108c SS |
1806 | } |
1807 | else | |
00bf0b85 SS |
1808 | { |
1809 | switch (ts->stop_reason) | |
1810 | { | |
1811 | case trace_never_run: | |
1812 | printf_filtered (_("No trace has been run on the target.\n")); | |
1813 | break; | |
1814 | case tstop_command: | |
1815 | printf_filtered (_("Trace stopped by a tstop command.\n")); | |
1816 | break; | |
1817 | case trace_buffer_full: | |
1818 | printf_filtered (_("Trace stopped because the buffer was full.\n")); | |
1819 | break; | |
1820 | case trace_disconnected: | |
1821 | printf_filtered (_("Trace stopped because of disconnection.\n")); | |
1822 | break; | |
1823 | case tracepoint_passcount: | |
00bf0b85 SS |
1824 | printf_filtered (_("Trace stopped by tracepoint %d.\n"), |
1825 | ts->stopping_tracepoint); | |
1826 | break; | |
6c28cbf2 SS |
1827 | case tracepoint_error: |
1828 | if (ts->stopping_tracepoint) | |
3e43a32a MS |
1829 | printf_filtered (_("Trace stopped by an " |
1830 | "error (%s, tracepoint %d).\n"), | |
6c28cbf2 SS |
1831 | ts->error_desc, ts->stopping_tracepoint); |
1832 | else | |
1833 | printf_filtered (_("Trace stopped by an error (%s).\n"), | |
1834 | ts->error_desc); | |
1835 | break; | |
00bf0b85 SS |
1836 | case trace_stop_reason_unknown: |
1837 | printf_filtered (_("Trace stopped for an unknown reason.\n")); | |
1838 | break; | |
1839 | default: | |
1840 | printf_filtered (_("Trace stopped for some other reason (%d).\n"), | |
1841 | ts->stop_reason); | |
1842 | break; | |
1843 | } | |
1844 | } | |
1845 | ||
4daf5ac0 SS |
1846 | if (ts->traceframes_created >= 0 |
1847 | && ts->traceframe_count != ts->traceframes_created) | |
1848 | { | |
3e43a32a MS |
1849 | printf_filtered (_("Buffer contains %d trace " |
1850 | "frames (of %d created total).\n"), | |
4daf5ac0 SS |
1851 | ts->traceframe_count, ts->traceframes_created); |
1852 | } | |
1853 | else if (ts->traceframe_count >= 0) | |
00bf0b85 SS |
1854 | { |
1855 | printf_filtered (_("Collected %d trace frames.\n"), | |
1856 | ts->traceframe_count); | |
1857 | } | |
1858 | ||
4daf5ac0 | 1859 | if (ts->buffer_free >= 0) |
00bf0b85 | 1860 | { |
4daf5ac0 SS |
1861 | if (ts->buffer_size >= 0) |
1862 | { | |
1863 | printf_filtered (_("Trace buffer has %d bytes of %d bytes free"), | |
1864 | ts->buffer_free, ts->buffer_size); | |
1865 | if (ts->buffer_size > 0) | |
1866 | printf_filtered (_(" (%d%% full)"), | |
1867 | ((int) ((((long long) (ts->buffer_size | |
1868 | - ts->buffer_free)) * 100) | |
1869 | / ts->buffer_size))); | |
1870 | printf_filtered (_(".\n")); | |
1871 | } | |
1872 | else | |
1873 | printf_filtered (_("Trace buffer has %d bytes free.\n"), | |
1874 | ts->buffer_free); | |
00bf0b85 | 1875 | } |
35b1e5cc | 1876 | |
33da3f1c SS |
1877 | if (ts->disconnected_tracing) |
1878 | printf_filtered (_("Trace will continue if GDB disconnects.\n")); | |
1879 | else | |
1880 | printf_filtered (_("Trace will stop if GDB disconnects.\n")); | |
1881 | ||
1882 | if (ts->circular_buffer) | |
1883 | printf_filtered (_("Trace buffer is circular.\n")); | |
1884 | ||
00bf0b85 | 1885 | /* Now report on what we're doing with tfind. */ |
35b1e5cc SS |
1886 | if (traceframe_number >= 0) |
1887 | printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"), | |
1888 | traceframe_number, tracepoint_number); | |
1889 | else | |
1890 | printf_filtered (_("Not looking at any trace frame.\n")); | |
c906108c SS |
1891 | } |
1892 | ||
f224b49d VP |
1893 | /* Report the trace status to uiout, in a way suitable for MI, and not |
1894 | suitable for CLI. If ON_STOP is true, suppress a few fields that | |
1895 | are not meaningful in the -trace-stop response. | |
1896 | ||
1897 | The implementation is essentially parallel to trace_status_command, but | |
1898 | merging them will result in unreadable code. */ | |
1899 | void | |
1900 | trace_status_mi (int on_stop) | |
1901 | { | |
79a45e25 | 1902 | struct ui_out *uiout = current_uiout; |
f224b49d VP |
1903 | struct trace_status *ts = current_trace_status (); |
1904 | int status; | |
f224b49d VP |
1905 | |
1906 | status = target_get_trace_status (ts); | |
1907 | ||
1908 | if (status == -1 && !ts->from_file) | |
1909 | { | |
1910 | ui_out_field_string (uiout, "supported", "0"); | |
1911 | return; | |
1912 | } | |
1913 | ||
1914 | if (ts->from_file) | |
1915 | ui_out_field_string (uiout, "supported", "file"); | |
1916 | else if (!on_stop) | |
1917 | ui_out_field_string (uiout, "supported", "1"); | |
1918 | ||
1919 | gdb_assert (ts->running_known); | |
1920 | ||
1921 | if (ts->running) | |
1922 | { | |
1923 | ui_out_field_string (uiout, "running", "1"); | |
1924 | ||
1925 | /* Unlike CLI, do not show the state of 'disconnected-tracing' variable. | |
1926 | Given that the frontend gets the status either on -trace-stop, or from | |
1927 | -trace-status after re-connection, it does not seem like this | |
1928 | information is necessary for anything. It is not necessary for either | |
1929 | figuring the vital state of the target nor for navigation of trace | |
1930 | frames. If the frontend wants to show the current state is some | |
1931 | configure dialog, it can request the value when such dialog is | |
1932 | invoked by the user. */ | |
1933 | } | |
1934 | else | |
1935 | { | |
1936 | char *stop_reason = NULL; | |
1937 | int stopping_tracepoint = -1; | |
1938 | ||
1939 | if (!on_stop) | |
1940 | ui_out_field_string (uiout, "running", "0"); | |
1941 | ||
1942 | if (ts->stop_reason != trace_stop_reason_unknown) | |
1943 | { | |
1944 | switch (ts->stop_reason) | |
1945 | { | |
1946 | case tstop_command: | |
1947 | stop_reason = "request"; | |
1948 | break; | |
1949 | case trace_buffer_full: | |
1950 | stop_reason = "overflow"; | |
1951 | break; | |
1952 | case trace_disconnected: | |
1953 | stop_reason = "disconnection"; | |
1954 | break; | |
1955 | case tracepoint_passcount: | |
1956 | stop_reason = "passcount"; | |
1957 | stopping_tracepoint = ts->stopping_tracepoint; | |
1958 | break; | |
6c28cbf2 SS |
1959 | case tracepoint_error: |
1960 | stop_reason = "error"; | |
1961 | stopping_tracepoint = ts->stopping_tracepoint; | |
1962 | break; | |
f224b49d VP |
1963 | } |
1964 | ||
1965 | if (stop_reason) | |
1966 | { | |
1967 | ui_out_field_string (uiout, "stop-reason", stop_reason); | |
1968 | if (stopping_tracepoint != -1) | |
1969 | ui_out_field_int (uiout, "stopping-tracepoint", | |
1970 | stopping_tracepoint); | |
6c28cbf2 SS |
1971 | if (ts->stop_reason == tracepoint_error) |
1972 | ui_out_field_string (uiout, "error-description", | |
1973 | ts->error_desc); | |
f224b49d VP |
1974 | } |
1975 | } | |
1976 | } | |
1977 | ||
a97153c7 | 1978 | if (ts->traceframe_count != -1) |
f224b49d | 1979 | ui_out_field_int (uiout, "frames", ts->traceframe_count); |
87290684 SS |
1980 | if (ts->traceframes_created != -1) |
1981 | ui_out_field_int (uiout, "frames-created", ts->traceframes_created); | |
a97153c7 PA |
1982 | if (ts->buffer_size != -1) |
1983 | ui_out_field_int (uiout, "buffer-size", ts->buffer_size); | |
1984 | if (ts->buffer_free != -1) | |
1985 | ui_out_field_int (uiout, "buffer-free", ts->buffer_free); | |
1986 | ||
1987 | ui_out_field_int (uiout, "disconnected", ts->disconnected_tracing); | |
1988 | ui_out_field_int (uiout, "circular", ts->circular_buffer); | |
f224b49d VP |
1989 | } |
1990 | ||
33da3f1c SS |
1991 | /* This function handles the details of what to do about an ongoing |
1992 | tracing run if the user has asked to detach or otherwise disconnect | |
1993 | from the target. */ | |
d5551862 | 1994 | void |
33da3f1c | 1995 | disconnect_tracing (int from_tty) |
d5551862 | 1996 | { |
00bf0b85 SS |
1997 | /* It can happen that the target that was tracing went away on its |
1998 | own, and we didn't notice. Get a status update, and if the | |
1999 | current target doesn't even do tracing, then assume it's not | |
2000 | running anymore. */ | |
26afc0d7 | 2001 | if (target_get_trace_status (current_trace_status ()) < 0) |
00bf0b85 SS |
2002 | current_trace_status ()->running = 0; |
2003 | ||
33da3f1c SS |
2004 | /* If running interactively, give the user the option to cancel and |
2005 | then decide what to do differently with the run. Scripts are | |
2006 | just going to disconnect and let the target deal with it, | |
2007 | according to how it's been instructed previously via | |
2008 | disconnected-tracing. */ | |
00bf0b85 | 2009 | if (current_trace_status ()->running && from_tty) |
d5551862 | 2010 | { |
33da3f1c SS |
2011 | if (current_trace_status ()->disconnected_tracing) |
2012 | { | |
3e43a32a MS |
2013 | if (!query (_("Trace is running and will " |
2014 | "continue after detach; detach anyway? "))) | |
33da3f1c SS |
2015 | error (_("Not confirmed.")); |
2016 | } | |
2017 | else | |
2018 | { | |
3e43a32a MS |
2019 | if (!query (_("Trace is running but will " |
2020 | "stop on detach; detach anyway? "))) | |
33da3f1c SS |
2021 | error (_("Not confirmed.")); |
2022 | } | |
d5551862 | 2023 | } |
8b9b7ef8 SS |
2024 | |
2025 | /* Also we want to be out of tfind mode, otherwise things can get | |
2026 | confusing upon reconnection. Just use these calls instead of | |
2027 | full tfind_1 behavior because we're in the middle of detaching, | |
2028 | and there's no point to updating current stack frame etc. */ | |
e6e4e701 | 2029 | set_current_traceframe (-1); |
8b9b7ef8 | 2030 | set_traceframe_context (NULL); |
d5551862 SS |
2031 | } |
2032 | ||
d183932d | 2033 | /* Worker function for the various flavors of the tfind command. */ |
f197e0f1 VP |
2034 | void |
2035 | tfind_1 (enum trace_find_type type, int num, | |
2036 | ULONGEST addr1, ULONGEST addr2, | |
2037 | int from_tty) | |
c906108c SS |
2038 | { |
2039 | int target_frameno = -1, target_tracept = -1; | |
2ce6d6bf | 2040 | struct frame_id old_frame_id = null_frame_id; |
d9b3f62e | 2041 | struct tracepoint *tp; |
79a45e25 | 2042 | struct ui_out *uiout = current_uiout; |
c906108c | 2043 | |
2ce6d6bf SS |
2044 | /* Only try to get the current stack frame if we have a chance of |
2045 | succeeding. In particular, if we're trying to get a first trace | |
2046 | frame while all threads are running, it's not going to succeed, | |
2047 | so leave it with a default value and let the frame comparison | |
2048 | below (correctly) decide to print out the source location of the | |
2049 | trace frame. */ | |
2050 | if (!(type == tfind_number && num == -1) | |
2051 | && (has_stack_frames () || traceframe_number >= 0)) | |
2052 | old_frame_id = get_frame_id (get_current_frame ()); | |
c906108c | 2053 | |
35b1e5cc SS |
2054 | target_frameno = target_trace_find (type, num, addr1, addr2, |
2055 | &target_tracept); | |
2056 | ||
2057 | if (type == tfind_number | |
2058 | && num == -1 | |
2059 | && target_frameno == -1) | |
2060 | { | |
2061 | /* We told the target to get out of tfind mode, and it did. */ | |
2062 | } | |
2063 | else if (target_frameno == -1) | |
2064 | { | |
2ce6d6bf | 2065 | /* A request for a non-existent trace frame has failed. |
35b1e5cc SS |
2066 | Our response will be different, depending on FROM_TTY: |
2067 | ||
2068 | If FROM_TTY is true, meaning that this command was | |
2069 | typed interactively by the user, then give an error | |
2070 | and DO NOT change the state of traceframe_number etc. | |
2071 | ||
2072 | However if FROM_TTY is false, meaning that we're either | |
2073 | in a script, a loop, or a user-defined command, then | |
2074 | DON'T give an error, but DO change the state of | |
2075 | traceframe_number etc. to invalid. | |
2076 | ||
2077 | The rationalle is that if you typed the command, you | |
2078 | might just have committed a typo or something, and you'd | |
2079 | like to NOT lose your current debugging state. However | |
2080 | if you're in a user-defined command or especially in a | |
2081 | loop, then you need a way to detect that the command | |
2082 | failed WITHOUT aborting. This allows you to write | |
2083 | scripts that search thru the trace buffer until the end, | |
2084 | and then continue on to do something else. */ | |
2085 | ||
2086 | if (from_tty) | |
2087 | error (_("Target failed to find requested trace frame.")); | |
2088 | else | |
2089 | { | |
2090 | if (info_verbose) | |
2091 | printf_filtered ("End of trace buffer.\n"); | |
c378eb4e | 2092 | #if 0 /* dubious now? */ |
35b1e5cc SS |
2093 | /* The following will not recurse, since it's |
2094 | special-cased. */ | |
2095 | trace_find_command ("-1", from_tty); | |
2096 | #endif | |
2097 | } | |
2098 | } | |
2099 | ||
d5551862 SS |
2100 | tp = get_tracepoint_by_number_on_target (target_tracept); |
2101 | ||
35f196d9 | 2102 | reinit_frame_cache (); |
c906108c | 2103 | registers_changed (); |
2f4d8875 | 2104 | target_dcache_invalidate (); |
c906108c | 2105 | set_traceframe_num (target_frameno); |
b3b9301e | 2106 | clear_traceframe_info (); |
d9b3f62e | 2107 | set_tracepoint_num (tp ? tp->base.number : target_tracept); |
c906108c | 2108 | if (target_frameno == -1) |
fb14de7b | 2109 | set_traceframe_context (NULL); |
c906108c | 2110 | else |
fb14de7b | 2111 | set_traceframe_context (get_current_frame ()); |
c906108c | 2112 | |
f197e0f1 VP |
2113 | if (traceframe_number >= 0) |
2114 | { | |
2115 | /* Use different branches for MI and CLI to make CLI messages | |
2116 | i18n-eable. */ | |
2117 | if (ui_out_is_mi_like_p (uiout)) | |
2118 | { | |
2119 | ui_out_field_string (uiout, "found", "1"); | |
2120 | ui_out_field_int (uiout, "tracepoint", tracepoint_number); | |
2121 | ui_out_field_int (uiout, "traceframe", traceframe_number); | |
2122 | } | |
2123 | else | |
2124 | { | |
2125 | printf_unfiltered (_("Found trace frame %d, tracepoint %d\n"), | |
2126 | traceframe_number, tracepoint_number); | |
2127 | } | |
2128 | } | |
2129 | else | |
2130 | { | |
2131 | if (ui_out_is_mi_like_p (uiout)) | |
2132 | ui_out_field_string (uiout, "found", "0"); | |
4136fdd2 SS |
2133 | else if (type == tfind_number && num == -1) |
2134 | printf_unfiltered (_("No longer looking at any trace frame\n")); | |
c378eb4e | 2135 | else /* This case may never occur, check. */ |
4136fdd2 | 2136 | printf_unfiltered (_("No trace frame found\n")); |
f197e0f1 VP |
2137 | } |
2138 | ||
00bf0b85 SS |
2139 | /* If we're in nonstop mode and getting out of looking at trace |
2140 | frames, there won't be any current frame to go back to and | |
2141 | display. */ | |
2142 | if (from_tty | |
2143 | && (has_stack_frames () || traceframe_number >= 0)) | |
c906108c | 2144 | { |
0faf0076 | 2145 | enum print_what print_what; |
c906108c | 2146 | |
2ce6d6bf | 2147 | /* NOTE: in imitation of the step command, try to determine |
d183932d MS |
2148 | whether we have made a transition from one function to |
2149 | another. If so, we'll print the "stack frame" (ie. the new | |
2150 | function and it's arguments) -- otherwise we'll just show the | |
fb14de7b UW |
2151 | new source line. */ |
2152 | ||
2153 | if (frame_id_eq (old_frame_id, | |
2154 | get_frame_id (get_current_frame ()))) | |
0faf0076 | 2155 | print_what = SRC_LINE; |
c906108c | 2156 | else |
0faf0076 | 2157 | print_what = SRC_AND_LOC; |
c906108c | 2158 | |
b04f3ab4 | 2159 | print_stack_frame (get_selected_frame (NULL), 1, print_what); |
c906108c SS |
2160 | do_displays (); |
2161 | } | |
2162 | } | |
2163 | ||
2164 | /* trace_find_command takes a trace frame number n, | |
2165 | sends "QTFrame:<n>" to the target, | |
2166 | and accepts a reply that may contain several optional pieces | |
2167 | of information: a frame number, a tracepoint number, and an | |
2168 | indication of whether this is a trap frame or a stepping frame. | |
2169 | ||
2170 | The minimal response is just "OK" (which indicates that the | |
2171 | target does not give us a frame number or a tracepoint number). | |
2172 | Instead of that, the target may send us a string containing | |
2173 | any combination of: | |
c5aa993b JM |
2174 | F<hexnum> (gives the selected frame number) |
2175 | T<hexnum> (gives the selected tracepoint number) | |
2176 | */ | |
c906108c SS |
2177 | |
2178 | /* tfind command */ | |
2179 | static void | |
fba45db2 | 2180 | trace_find_command (char *args, int from_tty) |
c378eb4e | 2181 | { /* This should only be called with a numeric argument. */ |
c906108c | 2182 | int frameno = -1; |
c906108c | 2183 | |
00bf0b85 | 2184 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2185 | error (_("May not look at trace frames while trace is running.")); |
35b1e5cc SS |
2186 | |
2187 | if (args == 0 || *args == 0) | |
2188 | { /* TFIND with no args means find NEXT trace frame. */ | |
2189 | if (traceframe_number == -1) | |
c378eb4e | 2190 | frameno = 0; /* "next" is first one. */ |
35b1e5cc SS |
2191 | else |
2192 | frameno = traceframe_number + 1; | |
2193 | } | |
2194 | else if (0 == strcmp (args, "-")) | |
c906108c | 2195 | { |
35b1e5cc SS |
2196 | if (traceframe_number == -1) |
2197 | error (_("not debugging trace buffer")); | |
2198 | else if (from_tty && traceframe_number == 0) | |
2199 | error (_("already at start of trace buffer")); | |
2200 | ||
2201 | frameno = traceframe_number - 1; | |
2202 | } | |
2203 | /* A hack to work around eval's need for fp to have been collected. */ | |
2204 | else if (0 == strcmp (args, "-1")) | |
2205 | frameno = -1; | |
2206 | else | |
2207 | frameno = parse_and_eval_long (args); | |
c906108c | 2208 | |
35b1e5cc SS |
2209 | if (frameno < -1) |
2210 | error (_("invalid input (%d is less than zero)"), frameno); | |
c906108c | 2211 | |
f197e0f1 | 2212 | tfind_1 (tfind_number, frameno, 0, 0, from_tty); |
c906108c SS |
2213 | } |
2214 | ||
2215 | /* tfind end */ | |
2216 | static void | |
fba45db2 | 2217 | trace_find_end_command (char *args, int from_tty) |
c906108c SS |
2218 | { |
2219 | trace_find_command ("-1", from_tty); | |
2220 | } | |
2221 | ||
2222 | /* tfind none */ | |
2223 | static void | |
fba45db2 | 2224 | trace_find_none_command (char *args, int from_tty) |
c906108c SS |
2225 | { |
2226 | trace_find_command ("-1", from_tty); | |
2227 | } | |
2228 | ||
2229 | /* tfind start */ | |
2230 | static void | |
fba45db2 | 2231 | trace_find_start_command (char *args, int from_tty) |
c906108c SS |
2232 | { |
2233 | trace_find_command ("0", from_tty); | |
2234 | } | |
2235 | ||
2236 | /* tfind pc command */ | |
2237 | static void | |
fba45db2 | 2238 | trace_find_pc_command (char *args, int from_tty) |
d183932d | 2239 | { |
c906108c | 2240 | CORE_ADDR pc; |
c906108c | 2241 | |
00bf0b85 | 2242 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2243 | error (_("May not look at trace frames while trace is running.")); |
c906108c | 2244 | |
35b1e5cc SS |
2245 | if (args == 0 || *args == 0) |
2246 | pc = regcache_read_pc (get_current_regcache ()); | |
c906108c | 2247 | else |
35b1e5cc SS |
2248 | pc = parse_and_eval_address (args); |
2249 | ||
f197e0f1 | 2250 | tfind_1 (tfind_pc, 0, pc, 0, from_tty); |
c906108c SS |
2251 | } |
2252 | ||
2253 | /* tfind tracepoint command */ | |
2254 | static void | |
fba45db2 | 2255 | trace_find_tracepoint_command (char *args, int from_tty) |
d183932d | 2256 | { |
c906108c | 2257 | int tdp; |
d9b3f62e | 2258 | struct tracepoint *tp; |
c906108c | 2259 | |
00bf0b85 | 2260 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2261 | error (_("May not look at trace frames while trace is running.")); |
383e5f85 | 2262 | |
35b1e5cc SS |
2263 | if (args == 0 || *args == 0) |
2264 | { | |
2265 | if (tracepoint_number == -1) | |
2266 | error (_("No current tracepoint -- please supply an argument.")); | |
c906108c | 2267 | else |
c378eb4e | 2268 | tdp = tracepoint_number; /* Default is current TDP. */ |
c906108c SS |
2269 | } |
2270 | else | |
35b1e5cc SS |
2271 | tdp = parse_and_eval_long (args); |
2272 | ||
2273 | /* If we have the tracepoint on hand, use the number that the | |
2274 | target knows about (which may be different if we disconnected | |
2275 | and reconnected). */ | |
2276 | tp = get_tracepoint (tdp); | |
2277 | if (tp) | |
2278 | tdp = tp->number_on_target; | |
2279 | ||
f197e0f1 | 2280 | tfind_1 (tfind_tp, tdp, 0, 0, from_tty); |
c906108c SS |
2281 | } |
2282 | ||
2283 | /* TFIND LINE command: | |
c5aa993b | 2284 | |
c906108c | 2285 | This command will take a sourceline for argument, just like BREAK |
d183932d | 2286 | or TRACE (ie. anything that "decode_line_1" can handle). |
c5aa993b | 2287 | |
c906108c SS |
2288 | With no argument, this command will find the next trace frame |
2289 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
2290 | ||
2291 | static void | |
fba45db2 | 2292 | trace_find_line_command (char *args, int from_tty) |
d183932d | 2293 | { |
c906108c SS |
2294 | static CORE_ADDR start_pc, end_pc; |
2295 | struct symtabs_and_lines sals; | |
2296 | struct symtab_and_line sal; | |
c906108c SS |
2297 | struct cleanup *old_chain; |
2298 | ||
00bf0b85 | 2299 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2300 | error (_("May not look at trace frames while trace is running.")); |
5af949e3 | 2301 | |
35b1e5cc SS |
2302 | if (args == 0 || *args == 0) |
2303 | { | |
2304 | sal = find_pc_line (get_frame_pc (get_current_frame ()), 0); | |
2305 | sals.nelts = 1; | |
2306 | sals.sals = (struct symtab_and_line *) | |
2307 | xmalloc (sizeof (struct symtab_and_line)); | |
2308 | sals.sals[0] = sal; | |
2309 | } | |
2310 | else | |
42e08e69 | 2311 | { |
35b1e5cc SS |
2312 | sals = decode_line_spec (args, 1); |
2313 | sal = sals.sals[0]; | |
2314 | } | |
2315 | ||
2316 | old_chain = make_cleanup (xfree, sals.sals); | |
2317 | if (sal.symtab == 0) | |
42e08e69 SS |
2318 | error (_("No line number information available.")); |
2319 | ||
2320 | if (sal.line > 0 && find_line_pc_range (sal, &start_pc, &end_pc)) | |
35b1e5cc SS |
2321 | { |
2322 | if (start_pc == end_pc) | |
2323 | { | |
2324 | printf_filtered ("Line %d of \"%s\"", | |
2325 | sal.line, sal.symtab->filename); | |
2326 | wrap_here (" "); | |
2327 | printf_filtered (" is at address "); | |
2328 | print_address (get_current_arch (), start_pc, gdb_stdout); | |
2329 | wrap_here (" "); | |
2330 | printf_filtered (" but contains no code.\n"); | |
2331 | sal = find_pc_line (start_pc, 0); | |
2332 | if (sal.line > 0 | |
2333 | && find_line_pc_range (sal, &start_pc, &end_pc) | |
2334 | && start_pc != end_pc) | |
2335 | printf_filtered ("Attempting to find line %d instead.\n", | |
2336 | sal.line); | |
2337 | else | |
2338 | error (_("Cannot find a good line.")); | |
2339 | } | |
2340 | } | |
2341 | else | |
2342 | /* Is there any case in which we get here, and have an address | |
2343 | which the user would want to see? If we have debugging | |
2344 | symbols and no line numbers? */ | |
2345 | error (_("Line number %d is out of range for \"%s\"."), | |
2346 | sal.line, sal.symtab->filename); | |
2347 | ||
2348 | /* Find within range of stated line. */ | |
2349 | if (args && *args) | |
f197e0f1 | 2350 | tfind_1 (tfind_range, 0, start_pc, end_pc - 1, from_tty); |
c906108c | 2351 | else |
f197e0f1 | 2352 | tfind_1 (tfind_outside, 0, start_pc, end_pc - 1, from_tty); |
35b1e5cc | 2353 | do_cleanups (old_chain); |
c906108c SS |
2354 | } |
2355 | ||
2356 | /* tfind range command */ | |
2357 | static void | |
fba45db2 | 2358 | trace_find_range_command (char *args, int from_tty) |
104c1213 | 2359 | { |
c906108c SS |
2360 | static CORE_ADDR start, stop; |
2361 | char *tmp; | |
2362 | ||
00bf0b85 | 2363 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2364 | error (_("May not look at trace frames while trace is running.")); |
c906108c | 2365 | |
35b1e5cc SS |
2366 | if (args == 0 || *args == 0) |
2367 | { /* XXX FIXME: what should default behavior be? */ | |
2368 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); | |
2369 | return; | |
2370 | } | |
c906108c | 2371 | |
35b1e5cc SS |
2372 | if (0 != (tmp = strchr (args, ','))) |
2373 | { | |
c378eb4e | 2374 | *tmp++ = '\0'; /* Terminate start address. */ |
35b1e5cc SS |
2375 | while (isspace ((int) *tmp)) |
2376 | tmp++; | |
2377 | start = parse_and_eval_address (args); | |
2378 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
2379 | } |
2380 | else | |
c378eb4e | 2381 | { /* No explicit end address? */ |
35b1e5cc SS |
2382 | start = parse_and_eval_address (args); |
2383 | stop = start + 1; /* ??? */ | |
2384 | } | |
2385 | ||
f197e0f1 | 2386 | tfind_1 (tfind_range, 0, start, stop, from_tty); |
c906108c SS |
2387 | } |
2388 | ||
2389 | /* tfind outside command */ | |
2390 | static void | |
fba45db2 | 2391 | trace_find_outside_command (char *args, int from_tty) |
104c1213 | 2392 | { |
c906108c SS |
2393 | CORE_ADDR start, stop; |
2394 | char *tmp; | |
2395 | ||
00bf0b85 | 2396 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
a73c6dcd | 2397 | error (_("May not look at trace frames while trace is running.")); |
c906108c | 2398 | |
35b1e5cc | 2399 | if (args == 0 || *args == 0) |
c378eb4e | 2400 | { /* XXX FIXME: what should default behavior be? */ |
35b1e5cc SS |
2401 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); |
2402 | return; | |
2403 | } | |
c906108c | 2404 | |
35b1e5cc SS |
2405 | if (0 != (tmp = strchr (args, ','))) |
2406 | { | |
c378eb4e | 2407 | *tmp++ = '\0'; /* Terminate start address. */ |
35b1e5cc SS |
2408 | while (isspace ((int) *tmp)) |
2409 | tmp++; | |
2410 | start = parse_and_eval_address (args); | |
2411 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
2412 | } |
2413 | else | |
c378eb4e | 2414 | { /* No explicit end address? */ |
35b1e5cc SS |
2415 | start = parse_and_eval_address (args); |
2416 | stop = start + 1; /* ??? */ | |
2417 | } | |
2418 | ||
f197e0f1 | 2419 | tfind_1 (tfind_outside, 0, start, stop, from_tty); |
c906108c SS |
2420 | } |
2421 | ||
c906108c SS |
2422 | /* info scope command: list the locals for a scope. */ |
2423 | static void | |
fba45db2 | 2424 | scope_info (char *args, int from_tty) |
c906108c | 2425 | { |
c906108c SS |
2426 | struct symtabs_and_lines sals; |
2427 | struct symbol *sym; | |
2428 | struct minimal_symbol *msym; | |
2429 | struct block *block; | |
21cbba77 | 2430 | char *symname, *save_args = args; |
de4f826b DC |
2431 | struct dict_iterator iter; |
2432 | int j, count = 0; | |
768a979c UW |
2433 | struct gdbarch *gdbarch; |
2434 | int regno; | |
c906108c SS |
2435 | |
2436 | if (args == 0 || *args == 0) | |
3e43a32a MS |
2437 | error (_("requires an argument (function, " |
2438 | "line or *addr) to define a scope")); | |
c906108c | 2439 | |
58438ac1 | 2440 | sals = decode_line_1 (&args, 1, NULL, 0, NULL); |
c906108c | 2441 | if (sals.nelts == 0) |
c378eb4e | 2442 | return; /* Presumably decode_line_1 has already warned. */ |
c906108c | 2443 | |
c378eb4e | 2444 | /* Resolve line numbers to PC. */ |
c906108c SS |
2445 | resolve_sal_pc (&sals.sals[0]); |
2446 | block = block_for_pc (sals.sals[0].pc); | |
2447 | ||
2448 | while (block != 0) | |
2449 | { | |
c378eb4e | 2450 | QUIT; /* Allow user to bail out with ^C. */ |
de4f826b | 2451 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 2452 | { |
c378eb4e | 2453 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c SS |
2454 | if (count == 0) |
2455 | printf_filtered ("Scope for %s:\n", save_args); | |
2456 | count++; | |
e88c90f2 | 2457 | |
3567439c | 2458 | symname = SYMBOL_PRINT_NAME (sym); |
c906108c | 2459 | if (symname == NULL || *symname == '\0') |
c378eb4e | 2460 | continue; /* Probably botched, certainly useless. */ |
c906108c | 2461 | |
768a979c UW |
2462 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
2463 | ||
c906108c | 2464 | printf_filtered ("Symbol %s is ", symname); |
c5aa993b JM |
2465 | switch (SYMBOL_CLASS (sym)) |
2466 | { | |
2467 | default: | |
c378eb4e | 2468 | case LOC_UNDEF: /* Messed up symbol? */ |
c5aa993b JM |
2469 | printf_filtered ("a bogus symbol, class %d.\n", |
2470 | SYMBOL_CLASS (sym)); | |
c378eb4e | 2471 | count--; /* Don't count this one. */ |
c5aa993b JM |
2472 | continue; |
2473 | case LOC_CONST: | |
104c1213 | 2474 | printf_filtered ("a constant with value %ld (0x%lx)", |
c5aa993b JM |
2475 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); |
2476 | break; | |
2477 | case LOC_CONST_BYTES: | |
2478 | printf_filtered ("constant bytes: "); | |
2479 | if (SYMBOL_TYPE (sym)) | |
2480 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) | |
2481 | fprintf_filtered (gdb_stdout, " %02x", | |
2482 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); | |
2483 | break; | |
2484 | case LOC_STATIC: | |
2485 | printf_filtered ("in static storage at address "); | |
5af949e3 UW |
2486 | printf_filtered ("%s", paddress (gdbarch, |
2487 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2488 | break; |
2489 | case LOC_REGISTER: | |
768a979c UW |
2490 | /* GDBARCH is the architecture associated with the objfile |
2491 | the symbol is defined in; the target architecture may be | |
2492 | different, and may provide additional registers. However, | |
2493 | we do not know the target architecture at this point. | |
2494 | We assume the objfile architecture will contain all the | |
2495 | standard registers that occur in debug info in that | |
2496 | objfile. */ | |
3e43a32a MS |
2497 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, |
2498 | gdbarch); | |
768a979c | 2499 | |
2a2d4dc3 AS |
2500 | if (SYMBOL_IS_ARGUMENT (sym)) |
2501 | printf_filtered ("an argument in register $%s", | |
768a979c | 2502 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
2503 | else |
2504 | printf_filtered ("a local variable in register $%s", | |
768a979c | 2505 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2506 | break; |
2507 | case LOC_ARG: | |
c5aa993b JM |
2508 | printf_filtered ("an argument at stack/frame offset %ld", |
2509 | SYMBOL_VALUE (sym)); | |
2510 | break; | |
2511 | case LOC_LOCAL: | |
2512 | printf_filtered ("a local variable at frame offset %ld", | |
2513 | SYMBOL_VALUE (sym)); | |
2514 | break; | |
2515 | case LOC_REF_ARG: | |
2516 | printf_filtered ("a reference argument at offset %ld", | |
2517 | SYMBOL_VALUE (sym)); | |
2518 | break; | |
c5aa993b | 2519 | case LOC_REGPARM_ADDR: |
768a979c | 2520 | /* Note comment at LOC_REGISTER. */ |
3e43a32a MS |
2521 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, |
2522 | gdbarch); | |
c5aa993b | 2523 | printf_filtered ("the address of an argument, in register $%s", |
768a979c | 2524 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2525 | break; |
2526 | case LOC_TYPEDEF: | |
2527 | printf_filtered ("a typedef.\n"); | |
2528 | continue; | |
2529 | case LOC_LABEL: | |
2530 | printf_filtered ("a label at address "); | |
5af949e3 UW |
2531 | printf_filtered ("%s", paddress (gdbarch, |
2532 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2533 | break; |
2534 | case LOC_BLOCK: | |
2535 | printf_filtered ("a function at address "); | |
5af949e3 UW |
2536 | printf_filtered ("%s", |
2537 | paddress (gdbarch, BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))); | |
c5aa993b | 2538 | break; |
c5aa993b | 2539 | case LOC_UNRESOLVED: |
3567439c | 2540 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), |
450bd37b | 2541 | NULL, NULL); |
c5aa993b JM |
2542 | if (msym == NULL) |
2543 | printf_filtered ("Unresolved Static"); | |
2544 | else | |
2545 | { | |
2546 | printf_filtered ("static storage at address "); | |
5af949e3 UW |
2547 | printf_filtered ("%s", |
2548 | paddress (gdbarch, SYMBOL_VALUE_ADDRESS (msym))); | |
c5aa993b JM |
2549 | } |
2550 | break; | |
2551 | case LOC_OPTIMIZED_OUT: | |
2552 | printf_filtered ("optimized out.\n"); | |
2553 | continue; | |
450bd37b | 2554 | case LOC_COMPUTED: |
08922a10 SS |
2555 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, |
2556 | BLOCK_START (block), | |
2557 | gdb_stdout); | |
450bd37b | 2558 | break; |
c5aa993b | 2559 | } |
c906108c | 2560 | if (SYMBOL_TYPE (sym)) |
c5aa993b | 2561 | printf_filtered (", length %d.\n", |
450bd37b | 2562 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); |
c906108c SS |
2563 | } |
2564 | if (BLOCK_FUNCTION (block)) | |
2565 | break; | |
2566 | else | |
2567 | block = BLOCK_SUPERBLOCK (block); | |
2568 | } | |
2569 | if (count <= 0) | |
2570 | printf_filtered ("Scope for %s contains no locals or arguments.\n", | |
2571 | save_args); | |
2572 | } | |
2573 | ||
2574 | /* worker function (cleanup) */ | |
2575 | static void | |
710b33bd | 2576 | replace_comma (void *data) |
c906108c | 2577 | { |
710b33bd | 2578 | char *comma = data; |
c906108c SS |
2579 | *comma = ','; |
2580 | } | |
2581 | ||
afd02f27 PA |
2582 | |
2583 | /* Helper for trace_dump_command. Dump the action list starting at | |
2584 | ACTION. STEPPING_ACTIONS is true if we're iterating over the | |
2585 | actions of the body of a while-stepping action. STEPPING_FRAME is | |
2586 | set if the current traceframe was determined to be a while-stepping | |
2587 | traceframe. */ | |
2588 | ||
c906108c | 2589 | static void |
afd02f27 PA |
2590 | trace_dump_actions (struct command_line *action, |
2591 | int stepping_actions, int stepping_frame, | |
2592 | int from_tty) | |
c906108c | 2593 | { |
c5aa993b | 2594 | char *action_exp, *next_comma; |
c906108c | 2595 | |
afd02f27 | 2596 | for (; action != NULL; action = action->next) |
c906108c SS |
2597 | { |
2598 | struct cmd_list_element *cmd; | |
2599 | ||
c378eb4e | 2600 | QUIT; /* Allow user to bail out with ^C. */ |
a7bdde9e | 2601 | action_exp = action->line; |
104c1213 | 2602 | while (isspace ((int) *action_exp)) |
c906108c SS |
2603 | action_exp++; |
2604 | ||
2605 | /* The collection actions to be done while stepping are | |
c5aa993b | 2606 | bracketed by the commands "while-stepping" and "end". */ |
c906108c SS |
2607 | |
2608 | if (*action_exp == '#') /* comment line */ | |
2609 | continue; | |
2610 | ||
2611 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
2612 | if (cmd == 0) | |
8a3fe4f8 | 2613 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 2614 | |
bbaca940 | 2615 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
afd02f27 PA |
2616 | { |
2617 | int i; | |
2618 | ||
2619 | for (i = 0; i < action->body_count; ++i) | |
2620 | trace_dump_actions (action->body_list[i], | |
2621 | 1, stepping_frame, from_tty); | |
2622 | } | |
bbaca940 | 2623 | else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c SS |
2624 | { |
2625 | /* Display the collected data. | |
d183932d MS |
2626 | For the trap frame, display only what was collected at |
2627 | the trap. Likewise for stepping frames, display only | |
2628 | what was collected while stepping. This means that the | |
2629 | two boolean variables, STEPPING_FRAME and | |
2630 | STEPPING_ACTIONS should be equal. */ | |
c906108c SS |
2631 | if (stepping_frame == stepping_actions) |
2632 | { | |
3065dfb6 SS |
2633 | if (*action_exp == '/') |
2634 | action_exp = decode_agent_options (action_exp); | |
2635 | ||
c5aa993b | 2636 | do |
c378eb4e MS |
2637 | { /* Repeat over a comma-separated list. */ |
2638 | QUIT; /* Allow user to bail out with ^C. */ | |
c5aa993b JM |
2639 | if (*action_exp == ',') |
2640 | action_exp++; | |
104c1213 | 2641 | while (isspace ((int) *action_exp)) |
c5aa993b JM |
2642 | action_exp++; |
2643 | ||
2644 | next_comma = strchr (action_exp, ','); | |
2645 | ||
2646 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2647 | registers_info (NULL, from_tty); | |
6710bf39 SS |
2648 | else if (0 == strncasecmp (action_exp, "$_ret", 5)) |
2649 | ; | |
c5aa993b JM |
2650 | else if (0 == strncasecmp (action_exp, "$loc", 4)) |
2651 | locals_info (NULL, from_tty); | |
2652 | else if (0 == strncasecmp (action_exp, "$arg", 4)) | |
2653 | args_info (NULL, from_tty); | |
2654 | else | |
2655 | { /* variable */ | |
2656 | if (next_comma) | |
2657 | { | |
2658 | make_cleanup (replace_comma, next_comma); | |
2659 | *next_comma = '\0'; | |
2660 | } | |
2661 | printf_filtered ("%s = ", action_exp); | |
2662 | output_command (action_exp, from_tty); | |
2663 | printf_filtered ("\n"); | |
2664 | } | |
2665 | if (next_comma) | |
2666 | *next_comma = ','; | |
2667 | action_exp = next_comma; | |
2668 | } | |
2669 | while (action_exp && *action_exp == ','); | |
c906108c SS |
2670 | } |
2671 | } | |
2672 | } | |
afd02f27 PA |
2673 | } |
2674 | ||
2675 | /* The tdump command. */ | |
2676 | ||
2677 | static void | |
2678 | trace_dump_command (char *args, int from_tty) | |
2679 | { | |
2680 | struct regcache *regcache; | |
d9b3f62e | 2681 | struct tracepoint *t; |
afd02f27 PA |
2682 | int stepping_frame = 0; |
2683 | struct bp_location *loc; | |
2114d44c SS |
2684 | char *line, *default_collect_line = NULL; |
2685 | struct command_line *actions, *default_collect_action = NULL; | |
2686 | struct cleanup *old_chain = NULL; | |
afd02f27 PA |
2687 | |
2688 | if (tracepoint_number == -1) | |
2689 | { | |
2690 | warning (_("No current trace frame.")); | |
2691 | return; | |
2692 | } | |
2693 | ||
2694 | t = get_tracepoint (tracepoint_number); | |
2695 | ||
2696 | if (t == NULL) | |
2697 | error (_("No known tracepoint matches 'current' tracepoint #%d."), | |
2698 | tracepoint_number); | |
2699 | ||
2700 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", | |
2701 | tracepoint_number, traceframe_number); | |
2702 | ||
2703 | /* The current frame is a trap frame if the frame PC is equal | |
2704 | to the tracepoint PC. If not, then the current frame was | |
2705 | collected during single-stepping. */ | |
2706 | ||
2707 | regcache = get_current_regcache (); | |
2708 | ||
2709 | /* If the traceframe's address matches any of the tracepoint's | |
2710 | locations, assume it is a direct hit rather than a while-stepping | |
2711 | frame. (FIXME this is not reliable, should record each frame's | |
2712 | type.) */ | |
2713 | stepping_frame = 1; | |
d9b3f62e | 2714 | for (loc = t->base.loc; loc; loc = loc->next) |
afd02f27 PA |
2715 | if (loc->address == regcache_read_pc (regcache)) |
2716 | stepping_frame = 0; | |
2717 | ||
d9b3f62e | 2718 | actions = breakpoint_commands (&t->base); |
2114d44c SS |
2719 | |
2720 | /* If there is a default-collect list, make up a collect command, | |
2721 | prepend to the tracepoint's commands, and pass the whole mess to | |
2722 | the trace dump scanner. We need to validate because | |
2723 | default-collect might have been junked since the trace run. */ | |
2724 | if (*default_collect) | |
2725 | { | |
2726 | default_collect_line = xstrprintf ("collect %s", default_collect); | |
2727 | old_chain = make_cleanup (xfree, default_collect_line); | |
2728 | line = default_collect_line; | |
d9b3f62e | 2729 | validate_actionline (&line, &t->base); |
2114d44c SS |
2730 | default_collect_action = xmalloc (sizeof (struct command_line)); |
2731 | make_cleanup (xfree, default_collect_action); | |
2732 | default_collect_action->next = actions; | |
2733 | default_collect_action->line = line; | |
2734 | actions = default_collect_action; | |
2735 | } | |
2736 | ||
2737 | trace_dump_actions (actions, 0, stepping_frame, from_tty); | |
2738 | ||
2739 | if (*default_collect) | |
2740 | do_cleanups (old_chain); | |
c906108c SS |
2741 | } |
2742 | ||
409873ef SS |
2743 | /* Encode a piece of a tracepoint's source-level definition in a form |
2744 | that is suitable for both protocol and saving in files. */ | |
2745 | /* This version does not do multiple encodes for long strings; it should | |
2746 | return an offset to the next piece to encode. FIXME */ | |
2747 | ||
2748 | extern int | |
2749 | encode_source_string (int tpnum, ULONGEST addr, | |
2750 | char *srctype, char *src, char *buf, int buf_size) | |
2751 | { | |
2752 | if (80 + strlen (srctype) > buf_size) | |
2753 | error (_("Buffer too small for source encoding")); | |
2754 | sprintf (buf, "%x:%s:%s:%x:%x:", | |
3e43a32a MS |
2755 | tpnum, phex_nz (addr, sizeof (addr)), |
2756 | srctype, 0, (int) strlen (src)); | |
409873ef SS |
2757 | if (strlen (buf) + strlen (src) * 2 >= buf_size) |
2758 | error (_("Source string too long for buffer")); | |
2759 | bin2hex (src, buf + strlen (buf), 0); | |
2760 | return -1; | |
2761 | } | |
2762 | ||
00bf0b85 SS |
2763 | extern int trace_regblock_size; |
2764 | ||
011aacb0 VP |
2765 | /* Save tracepoint data to file named FILENAME. If TARGET_DOES_SAVE is |
2766 | non-zero, the save is performed on the target, otherwise GDB obtains all | |
2767 | trace data and saves it locally. */ | |
2768 | ||
2769 | void | |
2770 | trace_save (const char *filename, int target_does_save) | |
00bf0b85 | 2771 | { |
00bf0b85 | 2772 | struct cleanup *cleanup; |
011aacb0 | 2773 | char *pathname; |
00bf0b85 SS |
2774 | struct trace_status *ts = current_trace_status (); |
2775 | int err, status; | |
2776 | FILE *fp; | |
2777 | struct uploaded_tp *uploaded_tps = NULL, *utp; | |
2778 | struct uploaded_tsv *uploaded_tsvs = NULL, *utsv; | |
2779 | int a; | |
3149d8c1 | 2780 | char *act; |
00bf0b85 SS |
2781 | LONGEST gotten = 0; |
2782 | ULONGEST offset = 0; | |
2783 | #define MAX_TRACE_UPLOAD 2000 | |
2784 | gdb_byte buf[MAX_TRACE_UPLOAD]; | |
98e03262 | 2785 | int written; |
00bf0b85 | 2786 | |
00bf0b85 SS |
2787 | /* If the target is to save the data to a file on its own, then just |
2788 | send the command and be done with it. */ | |
2789 | if (target_does_save) | |
2790 | { | |
2791 | err = target_save_trace_data (filename); | |
2792 | if (err < 0) | |
2793 | error (_("Target failed to save trace data to '%s'."), | |
2794 | filename); | |
2795 | return; | |
2796 | } | |
2797 | ||
2798 | /* Get the trace status first before opening the file, so if the | |
2799 | target is losing, we can get out without touching files. */ | |
2800 | status = target_get_trace_status (ts); | |
2801 | ||
011aacb0 | 2802 | pathname = tilde_expand (filename); |
00bf0b85 SS |
2803 | cleanup = make_cleanup (xfree, pathname); |
2804 | ||
105c2d85 | 2805 | fp = fopen (pathname, "wb"); |
00bf0b85 SS |
2806 | if (!fp) |
2807 | error (_("Unable to open file '%s' for saving trace data (%s)"), | |
011aacb0 | 2808 | filename, safe_strerror (errno)); |
00bf0b85 SS |
2809 | make_cleanup_fclose (fp); |
2810 | ||
2811 | /* Write a file header, with a high-bit-set char to indicate a | |
2812 | binary file, plus a hint as what this file is, and a version | |
2813 | number in case of future needs. */ | |
98e03262 | 2814 | written = fwrite ("\x7fTRACE0\n", 8, 1, fp); |
409873ef | 2815 | if (written < 1) |
98e03262 | 2816 | perror_with_name (pathname); |
00bf0b85 SS |
2817 | |
2818 | /* Write descriptive info. */ | |
2819 | ||
2820 | /* Write out the size of a register block. */ | |
2821 | fprintf (fp, "R %x\n", trace_regblock_size); | |
2822 | ||
2823 | /* Write out status of the tracing run (aka "tstatus" info). */ | |
6c28cbf2 SS |
2824 | fprintf (fp, "status %c;%s", |
2825 | (ts->running ? '1' : '0'), stop_reason_names[ts->stop_reason]); | |
6c28cbf2 SS |
2826 | if (ts->stop_reason == tracepoint_error) |
2827 | { | |
2828 | char *buf = (char *) alloca (strlen (ts->error_desc) * 2 + 1); | |
5d502164 | 2829 | |
6c28cbf2 | 2830 | bin2hex ((gdb_byte *) ts->error_desc, buf, 0); |
610197fd | 2831 | fprintf (fp, ":%s", buf); |
6c28cbf2 SS |
2832 | } |
2833 | fprintf (fp, ":%x", ts->stopping_tracepoint); | |
4daf5ac0 SS |
2834 | if (ts->traceframe_count >= 0) |
2835 | fprintf (fp, ";tframes:%x", ts->traceframe_count); | |
2836 | if (ts->traceframes_created >= 0) | |
2837 | fprintf (fp, ";tcreated:%x", ts->traceframes_created); | |
2838 | if (ts->buffer_free >= 0) | |
2839 | fprintf (fp, ";tfree:%x", ts->buffer_free); | |
2840 | if (ts->buffer_size >= 0) | |
2841 | fprintf (fp, ";tsize:%x", ts->buffer_size); | |
33da3f1c SS |
2842 | if (ts->disconnected_tracing) |
2843 | fprintf (fp, ";disconn:%x", ts->disconnected_tracing); | |
2844 | if (ts->circular_buffer) | |
2845 | fprintf (fp, ";circular:%x", ts->circular_buffer); | |
4daf5ac0 | 2846 | fprintf (fp, "\n"); |
00bf0b85 SS |
2847 | |
2848 | /* Note that we want to upload tracepoints and save those, rather | |
2849 | than simply writing out the local ones, because the user may have | |
2850 | changed tracepoints in GDB in preparation for a future tracing | |
2851 | run, or maybe just mass-deleted all types of breakpoints as part | |
2852 | of cleaning up. So as not to contaminate the session, leave the | |
2853 | data in its uploaded form, don't make into real tracepoints. */ | |
2854 | ||
2855 | /* Get trace state variables first, they may be checked when parsing | |
2856 | uploaded commands. */ | |
2857 | ||
2858 | target_upload_trace_state_variables (&uploaded_tsvs); | |
2859 | ||
2860 | for (utsv = uploaded_tsvs; utsv; utsv = utsv->next) | |
2861 | { | |
2862 | char *buf = ""; | |
2863 | ||
2864 | if (utsv->name) | |
2865 | { | |
2866 | buf = (char *) xmalloc (strlen (utsv->name) * 2 + 1); | |
2867 | bin2hex ((gdb_byte *) (utsv->name), buf, 0); | |
2868 | } | |
2869 | ||
2870 | fprintf (fp, "tsv %x:%s:%x:%s\n", | |
2871 | utsv->number, phex_nz (utsv->initial_value, 8), | |
2872 | utsv->builtin, buf); | |
2873 | ||
2874 | if (utsv->name) | |
2875 | xfree (buf); | |
2876 | } | |
2877 | ||
2878 | free_uploaded_tsvs (&uploaded_tsvs); | |
2879 | ||
2880 | target_upload_tracepoints (&uploaded_tps); | |
2881 | ||
2882 | for (utp = uploaded_tps; utp; utp = utp->next) | |
2883 | { | |
2884 | fprintf (fp, "tp T%x:%s:%c:%x:%x", | |
2885 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), | |
2886 | (utp->enabled ? 'E' : 'D'), utp->step, utp->pass); | |
2887 | if (utp->type == bp_fast_tracepoint) | |
2888 | fprintf (fp, ":F%x", utp->orig_size); | |
2889 | if (utp->cond) | |
2890 | fprintf (fp, ":X%x,%s", (unsigned int) strlen (utp->cond) / 2, | |
2891 | utp->cond); | |
2892 | fprintf (fp, "\n"); | |
3149d8c1 | 2893 | for (a = 0; VEC_iterate (char_ptr, utp->actions, a, act); ++a) |
00bf0b85 | 2894 | fprintf (fp, "tp A%x:%s:%s\n", |
3149d8c1 | 2895 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), act); |
0a2a54b8 | 2896 | for (a = 0; VEC_iterate (char_ptr, utp->step_actions, a, act); ++a) |
00bf0b85 | 2897 | fprintf (fp, "tp S%x:%s:%s\n", |
3149d8c1 | 2898 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), act); |
409873ef SS |
2899 | if (utp->at_string) |
2900 | { | |
2901 | encode_source_string (utp->number, utp->addr, | |
2902 | "at", utp->at_string, buf, MAX_TRACE_UPLOAD); | |
2903 | fprintf (fp, "tp Z%s\n", buf); | |
2904 | } | |
2905 | if (utp->cond_string) | |
2906 | { | |
2907 | encode_source_string (utp->number, utp->addr, | |
3e43a32a MS |
2908 | "cond", utp->cond_string, |
2909 | buf, MAX_TRACE_UPLOAD); | |
409873ef SS |
2910 | fprintf (fp, "tp Z%s\n", buf); |
2911 | } | |
3149d8c1 | 2912 | for (a = 0; VEC_iterate (char_ptr, utp->cmd_strings, a, act); ++a) |
409873ef | 2913 | { |
3149d8c1 | 2914 | encode_source_string (utp->number, utp->addr, "cmd", act, |
409873ef SS |
2915 | buf, MAX_TRACE_UPLOAD); |
2916 | fprintf (fp, "tp Z%s\n", buf); | |
2917 | } | |
00bf0b85 SS |
2918 | } |
2919 | ||
2920 | free_uploaded_tps (&uploaded_tps); | |
2921 | ||
2922 | /* Mark the end of the definition section. */ | |
2923 | fprintf (fp, "\n"); | |
2924 | ||
2925 | /* Get and write the trace data proper. We ask for big blocks, in | |
2926 | the hopes of efficiency, but will take less if the target has | |
2927 | packet size limitations or some such. */ | |
2928 | while (1) | |
2929 | { | |
2930 | gotten = target_get_raw_trace_data (buf, offset, MAX_TRACE_UPLOAD); | |
2931 | if (gotten < 0) | |
2932 | error (_("Failure to get requested trace buffer data")); | |
2933 | /* No more data is forthcoming, we're done. */ | |
2934 | if (gotten == 0) | |
2935 | break; | |
98e03262 | 2936 | written = fwrite (buf, gotten, 1, fp); |
409873ef | 2937 | if (written < 1) |
98e03262 | 2938 | perror_with_name (pathname); |
00bf0b85 SS |
2939 | offset += gotten; |
2940 | } | |
2941 | ||
409873ef | 2942 | /* Mark the end of trace data. (We know that gotten is 0 at this point.) */ |
98e03262 | 2943 | written = fwrite (&gotten, 4, 1, fp); |
409873ef | 2944 | if (written < 1) |
98e03262 | 2945 | perror_with_name (pathname); |
00bf0b85 SS |
2946 | |
2947 | do_cleanups (cleanup); | |
011aacb0 VP |
2948 | } |
2949 | ||
2950 | static void | |
2951 | trace_save_command (char *args, int from_tty) | |
2952 | { | |
2953 | int target_does_save = 0; | |
2954 | char **argv; | |
2955 | char *filename = NULL; | |
2956 | struct cleanup *back_to; | |
2957 | ||
2958 | if (args == NULL) | |
2959 | error_no_arg (_("file in which to save trace data")); | |
2960 | ||
2961 | argv = gdb_buildargv (args); | |
2962 | back_to = make_cleanup_freeargv (argv); | |
2963 | ||
2964 | for (; *argv; ++argv) | |
2965 | { | |
2966 | if (strcmp (*argv, "-r") == 0) | |
2967 | target_does_save = 1; | |
2968 | else if (**argv == '-') | |
2969 | error (_("unknown option `%s'"), *argv); | |
2970 | else | |
2971 | filename = *argv; | |
2972 | } | |
2973 | ||
2974 | if (!filename) | |
2975 | error_no_arg (_("file in which to save trace data")); | |
2976 | ||
2977 | trace_save (filename, target_does_save); | |
2978 | ||
00bf0b85 | 2979 | if (from_tty) |
a70633a2 | 2980 | printf_filtered (_("Trace data saved to file '%s'.\n"), filename); |
011aacb0 VP |
2981 | |
2982 | do_cleanups (back_to); | |
00bf0b85 SS |
2983 | } |
2984 | ||
d5551862 SS |
2985 | /* Tell the target what to do with an ongoing tracing run if GDB |
2986 | disconnects for some reason. */ | |
2987 | ||
2988 | void | |
2989 | send_disconnected_tracing_value (int value) | |
2990 | { | |
35b1e5cc | 2991 | target_set_disconnected_tracing (value); |
d5551862 SS |
2992 | } |
2993 | ||
2994 | static void | |
2995 | set_disconnected_tracing (char *args, int from_tty, | |
2996 | struct cmd_list_element *c) | |
2997 | { | |
2998 | send_disconnected_tracing_value (disconnected_tracing); | |
2999 | } | |
3000 | ||
4daf5ac0 SS |
3001 | static void |
3002 | set_circular_trace_buffer (char *args, int from_tty, | |
3003 | struct cmd_list_element *c) | |
3004 | { | |
3005 | target_set_circular_trace_buffer (circular_trace_buffer); | |
3006 | } | |
3007 | ||
c906108c SS |
3008 | /* Convert the memory pointed to by mem into hex, placing result in buf. |
3009 | * Return a pointer to the last char put in buf (null) | |
3010 | * "stolen" from sparc-stub.c | |
3011 | */ | |
3012 | ||
c5aa993b | 3013 | static const char hexchars[] = "0123456789abcdef"; |
c906108c | 3014 | |
47b667de AC |
3015 | static char * |
3016 | mem2hex (gdb_byte *mem, char *buf, int count) | |
c906108c | 3017 | { |
47b667de | 3018 | gdb_byte ch; |
c906108c SS |
3019 | |
3020 | while (count-- > 0) | |
3021 | { | |
3022 | ch = *mem++; | |
3023 | ||
3024 | *buf++ = hexchars[ch >> 4]; | |
3025 | *buf++ = hexchars[ch & 0xf]; | |
3026 | } | |
3027 | ||
3028 | *buf = 0; | |
3029 | ||
3030 | return buf; | |
3031 | } | |
3032 | ||
c5aa993b | 3033 | int |
fba45db2 | 3034 | get_traceframe_number (void) |
c906108c | 3035 | { |
c5aa993b | 3036 | return traceframe_number; |
c906108c SS |
3037 | } |
3038 | ||
06cd862c PA |
3039 | /* Make the traceframe NUM be the current trace frame. Does nothing |
3040 | if NUM is already current. */ | |
3041 | ||
3042 | void | |
e6e4e701 | 3043 | set_current_traceframe (int num) |
06cd862c PA |
3044 | { |
3045 | int newnum; | |
3046 | ||
3047 | if (traceframe_number == num) | |
3048 | { | |
3049 | /* Nothing to do. */ | |
3050 | return; | |
3051 | } | |
3052 | ||
3053 | newnum = target_trace_find (tfind_number, num, 0, 0, NULL); | |
3054 | ||
3055 | if (newnum != num) | |
3056 | warning (_("could not change traceframe")); | |
3057 | ||
3058 | traceframe_number = newnum; | |
3059 | ||
3060 | /* Changing the traceframe changes our view of registers and of the | |
3061 | frame chain. */ | |
3062 | registers_changed (); | |
b3b9301e PA |
3063 | |
3064 | clear_traceframe_info (); | |
06cd862c PA |
3065 | } |
3066 | ||
e6e4e701 PA |
3067 | /* Make the traceframe NUM be the current trace frame, and do nothing |
3068 | more. */ | |
3069 | ||
3070 | void | |
3071 | set_traceframe_number (int num) | |
3072 | { | |
3073 | traceframe_number = num; | |
3074 | } | |
3075 | ||
06cd862c PA |
3076 | /* A cleanup used when switching away and back from tfind mode. */ |
3077 | ||
3078 | struct current_traceframe_cleanup | |
3079 | { | |
3080 | /* The traceframe we were inspecting. */ | |
3081 | int traceframe_number; | |
3082 | }; | |
3083 | ||
3084 | static void | |
3085 | do_restore_current_traceframe_cleanup (void *arg) | |
3086 | { | |
3087 | struct current_traceframe_cleanup *old = arg; | |
3088 | ||
e6e4e701 | 3089 | set_current_traceframe (old->traceframe_number); |
06cd862c PA |
3090 | } |
3091 | ||
3092 | static void | |
3093 | restore_current_traceframe_cleanup_dtor (void *arg) | |
3094 | { | |
3095 | struct current_traceframe_cleanup *old = arg; | |
3096 | ||
3097 | xfree (old); | |
3098 | } | |
3099 | ||
3100 | struct cleanup * | |
3101 | make_cleanup_restore_current_traceframe (void) | |
3102 | { | |
3103 | struct current_traceframe_cleanup *old; | |
3104 | ||
3105 | old = xmalloc (sizeof (struct current_traceframe_cleanup)); | |
3106 | old->traceframe_number = traceframe_number; | |
3107 | ||
3108 | return make_cleanup_dtor (do_restore_current_traceframe_cleanup, old, | |
3109 | restore_current_traceframe_cleanup_dtor); | |
3110 | } | |
00bf0b85 | 3111 | |
e6e4e701 PA |
3112 | struct cleanup * |
3113 | make_cleanup_restore_traceframe_number (void) | |
3114 | { | |
3115 | return make_cleanup_restore_integer (&traceframe_number); | |
3116 | } | |
3117 | ||
00bf0b85 SS |
3118 | /* Given a number and address, return an uploaded tracepoint with that |
3119 | number, creating if necessary. */ | |
3120 | ||
3121 | struct uploaded_tp * | |
3122 | get_uploaded_tp (int num, ULONGEST addr, struct uploaded_tp **utpp) | |
3123 | { | |
3124 | struct uploaded_tp *utp; | |
3125 | ||
3126 | for (utp = *utpp; utp; utp = utp->next) | |
3127 | if (utp->number == num && utp->addr == addr) | |
3128 | return utp; | |
3129 | utp = (struct uploaded_tp *) xmalloc (sizeof (struct uploaded_tp)); | |
3130 | memset (utp, 0, sizeof (struct uploaded_tp)); | |
3131 | utp->number = num; | |
3132 | utp->addr = addr; | |
3149d8c1 SS |
3133 | utp->actions = NULL; |
3134 | utp->step_actions = NULL; | |
3135 | utp->cmd_strings = NULL; | |
00bf0b85 SS |
3136 | utp->next = *utpp; |
3137 | *utpp = utp; | |
3138 | return utp; | |
3139 | } | |
3140 | ||
3141 | static void | |
3142 | free_uploaded_tps (struct uploaded_tp **utpp) | |
3143 | { | |
3144 | struct uploaded_tp *next_one; | |
3145 | ||
3146 | while (*utpp) | |
3147 | { | |
3148 | next_one = (*utpp)->next; | |
3149 | xfree (*utpp); | |
3150 | *utpp = next_one; | |
3151 | } | |
3152 | } | |
3153 | ||
3154 | /* Given a number and address, return an uploaded tracepoint with that | |
3155 | number, creating if necessary. */ | |
3156 | ||
3157 | struct uploaded_tsv * | |
3158 | get_uploaded_tsv (int num, struct uploaded_tsv **utsvp) | |
3159 | { | |
3160 | struct uploaded_tsv *utsv; | |
3161 | ||
3162 | for (utsv = *utsvp; utsv; utsv = utsv->next) | |
3163 | if (utsv->number == num) | |
3164 | return utsv; | |
3165 | utsv = (struct uploaded_tsv *) xmalloc (sizeof (struct uploaded_tsv)); | |
3166 | memset (utsv, 0, sizeof (struct uploaded_tsv)); | |
3167 | utsv->number = num; | |
3168 | utsv->next = *utsvp; | |
3169 | *utsvp = utsv; | |
3170 | return utsv; | |
3171 | } | |
3172 | ||
3173 | static void | |
3174 | free_uploaded_tsvs (struct uploaded_tsv **utsvp) | |
3175 | { | |
3176 | struct uploaded_tsv *next_one; | |
3177 | ||
3178 | while (*utsvp) | |
3179 | { | |
3180 | next_one = (*utsvp)->next; | |
3181 | xfree (*utsvp); | |
3182 | *utsvp = next_one; | |
3183 | } | |
3184 | } | |
3185 | ||
4e5c165d HZ |
3186 | /* FIXME this function is heuristic and will miss the cases where the |
3187 | conditional is semantically identical but differs in whitespace, | |
3188 | such as "x == 0" vs "x==0". */ | |
3189 | ||
3190 | static int | |
3191 | cond_string_is_same (char *str1, char *str2) | |
3192 | { | |
3193 | if (str1 == NULL || str2 == NULL) | |
3194 | return (str1 == str2); | |
3195 | ||
3196 | return (strcmp (str1, str2) == 0); | |
3197 | } | |
3198 | ||
00bf0b85 SS |
3199 | /* Look for an existing tracepoint that seems similar enough to the |
3200 | uploaded one. Enablement isn't compared, because the user can | |
3201 | toggle that freely, and may have done so in anticipation of the | |
3202 | next trace run. */ | |
3203 | ||
d9b3f62e | 3204 | struct tracepoint * |
00bf0b85 SS |
3205 | find_matching_tracepoint (struct uploaded_tp *utp) |
3206 | { | |
3207 | VEC(breakpoint_p) *tp_vec = all_tracepoints (); | |
3208 | int ix; | |
d9b3f62e | 3209 | struct breakpoint *b; |
00bf0b85 SS |
3210 | struct bp_location *loc; |
3211 | ||
d9b3f62e | 3212 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++) |
00bf0b85 | 3213 | { |
d9b3f62e PA |
3214 | struct tracepoint *t = (struct tracepoint *) b; |
3215 | ||
3216 | if (b->type == utp->type | |
00bf0b85 SS |
3217 | && t->step_count == utp->step |
3218 | && t->pass_count == utp->pass | |
4e5c165d HZ |
3219 | && cond_string_is_same (t->base.cond_string, utp->cond_string) |
3220 | /* FIXME also test actions. */ | |
00bf0b85 SS |
3221 | ) |
3222 | { | |
3223 | /* Scan the locations for an address match. */ | |
d9b3f62e | 3224 | for (loc = b->loc; loc; loc = loc->next) |
00bf0b85 SS |
3225 | { |
3226 | if (loc->address == utp->addr) | |
3227 | return t; | |
3228 | } | |
3229 | } | |
3230 | } | |
3231 | return NULL; | |
3232 | } | |
3233 | ||
3234 | /* Given a list of tracepoints uploaded from a target, attempt to | |
3235 | match them up with existing tracepoints, and create new ones if not | |
3236 | found. */ | |
3237 | ||
3238 | void | |
3239 | merge_uploaded_tracepoints (struct uploaded_tp **uploaded_tps) | |
3240 | { | |
3241 | struct uploaded_tp *utp; | |
d9b3f62e | 3242 | struct tracepoint *t; |
00bf0b85 SS |
3243 | |
3244 | /* Look for GDB tracepoints that match up with our uploaded versions. */ | |
3245 | for (utp = *uploaded_tps; utp; utp = utp->next) | |
3246 | { | |
3247 | t = find_matching_tracepoint (utp); | |
3248 | if (t) | |
3e43a32a MS |
3249 | printf_filtered (_("Assuming tracepoint %d is same " |
3250 | "as target's tracepoint %d at %s.\n"), | |
d9b3f62e | 3251 | t->base.number, utp->number, |
3e43a32a | 3252 | paddress (get_current_arch (), utp->addr)); |
00bf0b85 SS |
3253 | else |
3254 | { | |
3255 | t = create_tracepoint_from_upload (utp); | |
3256 | if (t) | |
3e43a32a MS |
3257 | printf_filtered (_("Created tracepoint %d for " |
3258 | "target's tracepoint %d at %s.\n"), | |
d9b3f62e | 3259 | t->base.number, utp->number, |
3e43a32a | 3260 | paddress (get_current_arch (), utp->addr)); |
00bf0b85 | 3261 | else |
3e43a32a MS |
3262 | printf_filtered (_("Failed to create tracepoint for target's " |
3263 | "tracepoint %d at %s, skipping it.\n"), | |
3264 | utp->number, | |
3265 | paddress (get_current_arch (), utp->addr)); | |
00bf0b85 SS |
3266 | } |
3267 | /* Whether found or created, record the number used by the | |
3268 | target, to help with mapping target tracepoints back to their | |
3269 | counterparts here. */ | |
3270 | if (t) | |
3271 | t->number_on_target = utp->number; | |
3272 | } | |
3273 | ||
3274 | free_uploaded_tps (uploaded_tps); | |
3275 | } | |
3276 | ||
3277 | /* Trace state variables don't have much to identify them beyond their | |
3278 | name, so just use that to detect matches. */ | |
3279 | ||
3280 | struct trace_state_variable * | |
3281 | find_matching_tsv (struct uploaded_tsv *utsv) | |
3282 | { | |
3283 | if (!utsv->name) | |
3284 | return NULL; | |
3285 | ||
3286 | return find_trace_state_variable (utsv->name); | |
3287 | } | |
3288 | ||
3289 | struct trace_state_variable * | |
3290 | create_tsv_from_upload (struct uploaded_tsv *utsv) | |
3291 | { | |
3292 | const char *namebase; | |
3293 | char buf[20]; | |
3294 | int try_num = 0; | |
3295 | struct trace_state_variable *tsv; | |
3296 | ||
3297 | if (utsv->name) | |
3298 | { | |
3299 | namebase = utsv->name; | |
3300 | sprintf (buf, "%s", namebase); | |
3301 | } | |
3302 | else | |
3303 | { | |
3304 | namebase = "__tsv"; | |
3305 | sprintf (buf, "%s_%d", namebase, try_num++); | |
3306 | } | |
3307 | ||
3308 | /* Fish for a name that is not in use. */ | |
c378eb4e | 3309 | /* (should check against all internal vars?) */ |
00bf0b85 SS |
3310 | while (find_trace_state_variable (buf)) |
3311 | sprintf (buf, "%s_%d", namebase, try_num++); | |
3312 | ||
3313 | /* We have an available name, create the variable. */ | |
a0aa2878 | 3314 | tsv = create_trace_state_variable (buf); |
00bf0b85 SS |
3315 | tsv->initial_value = utsv->initial_value; |
3316 | tsv->builtin = utsv->builtin; | |
3317 | ||
3318 | return tsv; | |
3319 | } | |
3320 | ||
3321 | /* Given a list of uploaded trace state variables, try to match them | |
3322 | up with existing variables, or create additional ones. */ | |
3323 | ||
3324 | void | |
3325 | merge_uploaded_trace_state_variables (struct uploaded_tsv **uploaded_tsvs) | |
3326 | { | |
3327 | int ix; | |
3328 | struct uploaded_tsv *utsv; | |
3329 | struct trace_state_variable *tsv; | |
3330 | int highest; | |
3331 | ||
3332 | /* Most likely some numbers will have to be reassigned as part of | |
3333 | the merge, so clear them all in anticipation. */ | |
3334 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3335 | tsv->number = 0; | |
3336 | ||
3337 | for (utsv = *uploaded_tsvs; utsv; utsv = utsv->next) | |
3338 | { | |
3339 | tsv = find_matching_tsv (utsv); | |
3340 | if (tsv) | |
417b5110 DJ |
3341 | { |
3342 | if (info_verbose) | |
3e43a32a MS |
3343 | printf_filtered (_("Assuming trace state variable $%s " |
3344 | "is same as target's variable %d.\n"), | |
417b5110 DJ |
3345 | tsv->name, utsv->number); |
3346 | } | |
00bf0b85 SS |
3347 | else |
3348 | { | |
3349 | tsv = create_tsv_from_upload (utsv); | |
417b5110 | 3350 | if (info_verbose) |
3e43a32a MS |
3351 | printf_filtered (_("Created trace state variable " |
3352 | "$%s for target's variable %d.\n"), | |
417b5110 | 3353 | tsv->name, utsv->number); |
00bf0b85 SS |
3354 | } |
3355 | /* Give precedence to numberings that come from the target. */ | |
3356 | if (tsv) | |
3357 | tsv->number = utsv->number; | |
3358 | } | |
3359 | ||
3360 | /* Renumber everything that didn't get a target-assigned number. */ | |
3361 | highest = 0; | |
3362 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3363 | if (tsv->number > highest) | |
3364 | highest = tsv->number; | |
3365 | ||
3366 | ++highest; | |
3367 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
3368 | if (tsv->number == 0) | |
3369 | tsv->number = highest++; | |
3370 | ||
3371 | free_uploaded_tsvs (uploaded_tsvs); | |
3372 | } | |
3373 | ||
3374 | /* target tfile command */ | |
3375 | ||
3376 | struct target_ops tfile_ops; | |
3377 | ||
3378 | /* Fill in tfile_ops with its defined operations and properties. */ | |
3379 | ||
3380 | #define TRACE_HEADER_SIZE 8 | |
3381 | ||
98e03262 | 3382 | char *trace_filename; |
00bf0b85 SS |
3383 | int trace_fd = -1; |
3384 | off_t trace_frames_offset; | |
3385 | off_t cur_offset; | |
e6e4e701 | 3386 | int cur_traceframe_number; |
00bf0b85 SS |
3387 | int cur_data_size; |
3388 | int trace_regblock_size; | |
3389 | ||
3390 | static void tfile_interp_line (char *line, | |
3391 | struct uploaded_tp **utpp, | |
3392 | struct uploaded_tsv **utsvp); | |
3393 | ||
9f41c731 PA |
3394 | /* Read SIZE bytes into READBUF from the trace frame, starting at |
3395 | TRACE_FD's current position. Note that this call `read' | |
3396 | underneath, hence it advances the file's seek position. Throws an | |
3397 | error if the `read' syscall fails, or less than SIZE bytes are | |
3398 | read. */ | |
3399 | ||
3400 | static void | |
3401 | tfile_read (gdb_byte *readbuf, int size) | |
3402 | { | |
3403 | int gotten; | |
3404 | ||
3405 | gotten = read (trace_fd, readbuf, size); | |
3406 | if (gotten < 0) | |
3407 | perror_with_name (trace_filename); | |
3408 | else if (gotten < size) | |
3409 | error (_("Premature end of file while reading trace file")); | |
3410 | } | |
3411 | ||
00bf0b85 SS |
3412 | static void |
3413 | tfile_open (char *filename, int from_tty) | |
3414 | { | |
e93a69ed | 3415 | volatile struct gdb_exception ex; |
00bf0b85 SS |
3416 | char *temp; |
3417 | struct cleanup *old_chain; | |
3418 | int flags; | |
3419 | int scratch_chan; | |
3420 | char header[TRACE_HEADER_SIZE]; | |
c378eb4e | 3421 | char linebuf[1000]; /* Should be max remote packet size or so. */ |
00bf0b85 | 3422 | char byte; |
9f41c731 | 3423 | int bytes, i; |
00bf0b85 SS |
3424 | struct trace_status *ts; |
3425 | struct uploaded_tp *uploaded_tps = NULL; | |
3426 | struct uploaded_tsv *uploaded_tsvs = NULL; | |
3427 | ||
3428 | target_preopen (from_tty); | |
3429 | if (!filename) | |
3430 | error (_("No trace file specified.")); | |
3431 | ||
3432 | filename = tilde_expand (filename); | |
3433 | if (!IS_ABSOLUTE_PATH(filename)) | |
3434 | { | |
c4f7c687 | 3435 | temp = concat (current_directory, "/", filename, (char *) NULL); |
00bf0b85 SS |
3436 | xfree (filename); |
3437 | filename = temp; | |
3438 | } | |
3439 | ||
3440 | old_chain = make_cleanup (xfree, filename); | |
3441 | ||
3442 | flags = O_BINARY | O_LARGEFILE; | |
3443 | flags |= O_RDONLY; | |
3444 | scratch_chan = open (filename, flags, 0); | |
3445 | if (scratch_chan < 0) | |
3446 | perror_with_name (filename); | |
3447 | ||
3448 | /* Looks semi-reasonable. Toss the old trace file and work on the new. */ | |
3449 | ||
c378eb4e | 3450 | discard_cleanups (old_chain); /* Don't free filename any more. */ |
00bf0b85 SS |
3451 | unpush_target (&tfile_ops); |
3452 | ||
98e03262 | 3453 | trace_filename = xstrdup (filename); |
00bf0b85 SS |
3454 | trace_fd = scratch_chan; |
3455 | ||
3456 | bytes = 0; | |
3457 | /* Read the file header and test for validity. */ | |
9f41c731 | 3458 | tfile_read ((gdb_byte *) &header, TRACE_HEADER_SIZE); |
98e03262 | 3459 | |
00bf0b85 SS |
3460 | bytes += TRACE_HEADER_SIZE; |
3461 | if (!(header[0] == 0x7f | |
3462 | && (strncmp (header + 1, "TRACE0\n", 7) == 0))) | |
3463 | error (_("File is not a valid trace file.")); | |
3464 | ||
e93a69ed PA |
3465 | push_target (&tfile_ops); |
3466 | ||
00bf0b85 SS |
3467 | trace_regblock_size = 0; |
3468 | ts = current_trace_status (); | |
3469 | /* We know we're working with a file. */ | |
3470 | ts->from_file = 1; | |
3471 | /* Set defaults in case there is no status line. */ | |
3472 | ts->running_known = 0; | |
3473 | ts->stop_reason = trace_stop_reason_unknown; | |
3474 | ts->traceframe_count = -1; | |
3475 | ts->buffer_free = 0; | |
33da3f1c SS |
3476 | ts->disconnected_tracing = 0; |
3477 | ts->circular_buffer = 0; | |
00bf0b85 | 3478 | |
e6e4e701 PA |
3479 | cur_traceframe_number = -1; |
3480 | ||
e93a69ed | 3481 | TRY_CATCH (ex, RETURN_MASK_ALL) |
00bf0b85 | 3482 | { |
e93a69ed PA |
3483 | /* Read through a section of newline-terminated lines that |
3484 | define things like tracepoints. */ | |
3485 | i = 0; | |
3486 | while (1) | |
00bf0b85 | 3487 | { |
e93a69ed PA |
3488 | tfile_read (&byte, 1); |
3489 | ||
3490 | ++bytes; | |
3491 | if (byte == '\n') | |
3492 | { | |
3493 | /* Empty line marks end of the definition section. */ | |
3494 | if (i == 0) | |
3495 | break; | |
3496 | linebuf[i] = '\0'; | |
3497 | i = 0; | |
3498 | tfile_interp_line (linebuf, &uploaded_tps, &uploaded_tsvs); | |
3499 | } | |
3500 | else | |
3501 | linebuf[i++] = byte; | |
3502 | if (i >= 1000) | |
3503 | error (_("Excessively long lines in trace file")); | |
00bf0b85 | 3504 | } |
e93a69ed PA |
3505 | |
3506 | /* Record the starting offset of the binary trace data. */ | |
3507 | trace_frames_offset = bytes; | |
3508 | ||
3509 | /* If we don't have a blocksize, we can't interpret the | |
3510 | traceframes. */ | |
3511 | if (trace_regblock_size == 0) | |
3512 | error (_("No register block size recorded in trace file")); | |
3513 | } | |
3514 | if (ex.reason < 0) | |
3515 | { | |
3516 | /* Pop the partially set up target. */ | |
3517 | pop_target (); | |
3518 | throw_exception (ex); | |
00bf0b85 SS |
3519 | } |
3520 | ||
e93a69ed PA |
3521 | inferior_appeared (current_inferior (), TFILE_PID); |
3522 | inferior_ptid = pid_to_ptid (TFILE_PID); | |
3523 | add_thread_silent (inferior_ptid); | |
3524 | ||
3525 | if (ts->traceframe_count <= 0) | |
3526 | warning (_("No traceframes present in this file.")); | |
3527 | ||
00bf0b85 SS |
3528 | /* Add the file's tracepoints and variables into the current mix. */ |
3529 | ||
10ef8d6a PA |
3530 | /* Get trace state variables first, they may be checked when parsing |
3531 | uploaded commands. */ | |
00bf0b85 SS |
3532 | merge_uploaded_trace_state_variables (&uploaded_tsvs); |
3533 | ||
10ef8d6a PA |
3534 | merge_uploaded_tracepoints (&uploaded_tps); |
3535 | ||
00bf0b85 | 3536 | post_create_inferior (&tfile_ops, from_tty); |
00bf0b85 SS |
3537 | } |
3538 | ||
3539 | /* Interpret the given line from the definitions part of the trace | |
3540 | file. */ | |
3541 | ||
3542 | static void | |
3543 | tfile_interp_line (char *line, | |
3544 | struct uploaded_tp **utpp, struct uploaded_tsv **utsvp) | |
3545 | { | |
3546 | char *p = line; | |
3547 | ||
3548 | if (strncmp (p, "R ", strlen ("R ")) == 0) | |
3549 | { | |
3550 | p += strlen ("R "); | |
3551 | trace_regblock_size = strtol (p, &p, 16); | |
3552 | } | |
3553 | else if (strncmp (p, "status ", strlen ("status ")) == 0) | |
3554 | { | |
3555 | p += strlen ("status "); | |
3556 | parse_trace_status (p, current_trace_status ()); | |
3557 | } | |
3558 | else if (strncmp (p, "tp ", strlen ("tp ")) == 0) | |
3559 | { | |
3560 | p += strlen ("tp "); | |
3561 | parse_tracepoint_definition (p, utpp); | |
3562 | } | |
3563 | else if (strncmp (p, "tsv ", strlen ("tsv ")) == 0) | |
3564 | { | |
3565 | p += strlen ("tsv "); | |
3566 | parse_tsv_definition (p, utsvp); | |
3567 | } | |
3568 | else | |
a73c6dcd | 3569 | warning (_("Ignoring trace file definition \"%s\""), line); |
00bf0b85 SS |
3570 | } |
3571 | ||
3572 | /* Parse the part of trace status syntax that is shared between | |
3573 | the remote protocol and the trace file reader. */ | |
3574 | ||
00bf0b85 SS |
3575 | void |
3576 | parse_trace_status (char *line, struct trace_status *ts) | |
3577 | { | |
6c28cbf2 | 3578 | char *p = line, *p1, *p2, *p_temp; |
00bf0b85 SS |
3579 | ULONGEST val; |
3580 | ||
3581 | ts->running_known = 1; | |
3582 | ts->running = (*p++ == '1'); | |
3583 | ts->stop_reason = trace_stop_reason_unknown; | |
a609a0c8 PA |
3584 | xfree (ts->error_desc); |
3585 | ts->error_desc = NULL; | |
4daf5ac0 SS |
3586 | ts->traceframe_count = -1; |
3587 | ts->traceframes_created = -1; | |
3588 | ts->buffer_free = -1; | |
3589 | ts->buffer_size = -1; | |
33da3f1c SS |
3590 | ts->disconnected_tracing = 0; |
3591 | ts->circular_buffer = 0; | |
4daf5ac0 | 3592 | |
00bf0b85 SS |
3593 | while (*p++) |
3594 | { | |
3595 | p1 = strchr (p, ':'); | |
3596 | if (p1 == NULL) | |
3597 | error (_("Malformed trace status, at %s\n\ | |
3598 | Status line: '%s'\n"), p, line); | |
3599 | if (strncmp (p, stop_reason_names[trace_buffer_full], p1 - p) == 0) | |
3600 | { | |
3601 | p = unpack_varlen_hex (++p1, &val); | |
3602 | ts->stop_reason = trace_buffer_full; | |
3603 | } | |
3604 | else if (strncmp (p, stop_reason_names[trace_never_run], p1 - p) == 0) | |
3605 | { | |
3606 | p = unpack_varlen_hex (++p1, &val); | |
3607 | ts->stop_reason = trace_never_run; | |
3608 | } | |
3e43a32a MS |
3609 | else if (strncmp (p, stop_reason_names[tracepoint_passcount], |
3610 | p1 - p) == 0) | |
00bf0b85 SS |
3611 | { |
3612 | p = unpack_varlen_hex (++p1, &val); | |
3613 | ts->stop_reason = tracepoint_passcount; | |
3614 | ts->stopping_tracepoint = val; | |
3615 | } | |
3616 | else if (strncmp (p, stop_reason_names[tstop_command], p1 - p) == 0) | |
3617 | { | |
3618 | p = unpack_varlen_hex (++p1, &val); | |
3619 | ts->stop_reason = tstop_command; | |
3620 | } | |
33da3f1c SS |
3621 | else if (strncmp (p, stop_reason_names[trace_disconnected], p1 - p) == 0) |
3622 | { | |
3623 | p = unpack_varlen_hex (++p1, &val); | |
3624 | ts->stop_reason = trace_disconnected; | |
3625 | } | |
6c28cbf2 SS |
3626 | else if (strncmp (p, stop_reason_names[tracepoint_error], p1 - p) == 0) |
3627 | { | |
3628 | p2 = strchr (++p1, ':'); | |
3629 | if (p2 != p1) | |
3630 | { | |
3631 | int end; | |
99b5e152 PA |
3632 | |
3633 | ts->error_desc = xmalloc ((p2 - p1) / 2 + 1); | |
3634 | end = hex2bin (p1, ts->error_desc, (p2 - p1) / 2); | |
6c28cbf2 SS |
3635 | ts->error_desc[end] = '\0'; |
3636 | } | |
a609a0c8 PA |
3637 | else |
3638 | ts->error_desc = xstrdup (""); | |
3639 | ||
6c28cbf2 SS |
3640 | p = unpack_varlen_hex (++p2, &val); |
3641 | ts->stopping_tracepoint = val; | |
3642 | ts->stop_reason = tracepoint_error; | |
3643 | } | |
4daf5ac0 | 3644 | else if (strncmp (p, "tframes", p1 - p) == 0) |
00bf0b85 SS |
3645 | { |
3646 | p = unpack_varlen_hex (++p1, &val); | |
3647 | ts->traceframe_count = val; | |
3648 | } | |
4daf5ac0 SS |
3649 | else if (strncmp (p, "tcreated", p1 - p) == 0) |
3650 | { | |
3651 | p = unpack_varlen_hex (++p1, &val); | |
3652 | ts->traceframes_created = val; | |
3653 | } | |
3654 | else if (strncmp (p, "tfree", p1 - p) == 0) | |
00bf0b85 SS |
3655 | { |
3656 | p = unpack_varlen_hex (++p1, &val); | |
3657 | ts->buffer_free = val; | |
3658 | } | |
4daf5ac0 SS |
3659 | else if (strncmp (p, "tsize", p1 - p) == 0) |
3660 | { | |
3661 | p = unpack_varlen_hex (++p1, &val); | |
3662 | ts->buffer_size = val; | |
3663 | } | |
33da3f1c SS |
3664 | else if (strncmp (p, "disconn", p1 - p) == 0) |
3665 | { | |
3666 | p = unpack_varlen_hex (++p1, &val); | |
3667 | ts->disconnected_tracing = val; | |
3668 | } | |
3669 | else if (strncmp (p, "circular", p1 - p) == 0) | |
3670 | { | |
3671 | p = unpack_varlen_hex (++p1, &val); | |
3672 | ts->circular_buffer = val; | |
3673 | } | |
00bf0b85 SS |
3674 | else |
3675 | { | |
3676 | /* Silently skip unknown optional info. */ | |
3677 | p_temp = strchr (p1 + 1, ';'); | |
3678 | if (p_temp) | |
3679 | p = p_temp; | |
3680 | else | |
3681 | /* Must be at the end. */ | |
3682 | break; | |
3683 | } | |
3684 | } | |
3685 | } | |
3686 | ||
409873ef SS |
3687 | /* Given a line of text defining a part of a tracepoint, parse it into |
3688 | an "uploaded tracepoint". */ | |
00bf0b85 SS |
3689 | |
3690 | void | |
3691 | parse_tracepoint_definition (char *line, struct uploaded_tp **utpp) | |
3692 | { | |
3693 | char *p; | |
3694 | char piece; | |
409873ef | 3695 | ULONGEST num, addr, step, pass, orig_size, xlen, start; |
2a2287c7 | 3696 | int enabled, end; |
00bf0b85 | 3697 | enum bptype type; |
2a2287c7 | 3698 | char *cond, *srctype, *buf; |
00bf0b85 SS |
3699 | struct uploaded_tp *utp = NULL; |
3700 | ||
3701 | p = line; | |
3702 | /* Both tracepoint and action definitions start with the same number | |
3703 | and address sequence. */ | |
3704 | piece = *p++; | |
3705 | p = unpack_varlen_hex (p, &num); | |
3706 | p++; /* skip a colon */ | |
3707 | p = unpack_varlen_hex (p, &addr); | |
3708 | p++; /* skip a colon */ | |
3709 | if (piece == 'T') | |
3710 | { | |
3711 | enabled = (*p++ == 'E'); | |
3712 | p++; /* skip a colon */ | |
3713 | p = unpack_varlen_hex (p, &step); | |
3714 | p++; /* skip a colon */ | |
3715 | p = unpack_varlen_hex (p, &pass); | |
3716 | type = bp_tracepoint; | |
3717 | cond = NULL; | |
3718 | /* Thumb through optional fields. */ | |
3719 | while (*p == ':') | |
3720 | { | |
3721 | p++; /* skip a colon */ | |
3722 | if (*p == 'F') | |
3723 | { | |
3724 | type = bp_fast_tracepoint; | |
3725 | p++; | |
3726 | p = unpack_varlen_hex (p, &orig_size); | |
3727 | } | |
0fb4aa4b PA |
3728 | else if (*p == 'S') |
3729 | { | |
3730 | type = bp_static_tracepoint; | |
3731 | p++; | |
3732 | } | |
00bf0b85 SS |
3733 | else if (*p == 'X') |
3734 | { | |
3735 | p++; | |
3736 | p = unpack_varlen_hex (p, &xlen); | |
3737 | p++; /* skip a comma */ | |
3738 | cond = (char *) xmalloc (2 * xlen + 1); | |
3739 | strncpy (cond, p, 2 * xlen); | |
3740 | cond[2 * xlen] = '\0'; | |
3741 | p += 2 * xlen; | |
3742 | } | |
3743 | else | |
3e43a32a MS |
3744 | warning (_("Unrecognized char '%c' in tracepoint " |
3745 | "definition, skipping rest"), *p); | |
00bf0b85 SS |
3746 | } |
3747 | utp = get_uploaded_tp (num, addr, utpp); | |
3748 | utp->type = type; | |
3749 | utp->enabled = enabled; | |
3750 | utp->step = step; | |
3751 | utp->pass = pass; | |
3752 | utp->cond = cond; | |
3753 | } | |
3754 | else if (piece == 'A') | |
3755 | { | |
3756 | utp = get_uploaded_tp (num, addr, utpp); | |
3149d8c1 | 3757 | VEC_safe_push (char_ptr, utp->actions, xstrdup (p)); |
00bf0b85 SS |
3758 | } |
3759 | else if (piece == 'S') | |
3760 | { | |
3761 | utp = get_uploaded_tp (num, addr, utpp); | |
3149d8c1 | 3762 | VEC_safe_push (char_ptr, utp->step_actions, xstrdup (p)); |
00bf0b85 | 3763 | } |
409873ef SS |
3764 | else if (piece == 'Z') |
3765 | { | |
3766 | /* Parse a chunk of source form definition. */ | |
3767 | utp = get_uploaded_tp (num, addr, utpp); | |
3768 | srctype = p; | |
3769 | p = strchr (p, ':'); | |
3770 | p++; /* skip a colon */ | |
3771 | p = unpack_varlen_hex (p, &start); | |
3772 | p++; /* skip a colon */ | |
3773 | p = unpack_varlen_hex (p, &xlen); | |
3774 | p++; /* skip a colon */ | |
3775 | ||
3776 | buf = alloca (strlen (line)); | |
3777 | ||
3778 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3779 | buf[end] = '\0'; | |
3780 | ||
3781 | if (strncmp (srctype, "at:", strlen ("at:")) == 0) | |
3782 | utp->at_string = xstrdup (buf); | |
3783 | else if (strncmp (srctype, "cond:", strlen ("cond:")) == 0) | |
3784 | utp->cond_string = xstrdup (buf); | |
3785 | else if (strncmp (srctype, "cmd:", strlen ("cmd:")) == 0) | |
3149d8c1 | 3786 | VEC_safe_push (char_ptr, utp->cmd_strings, xstrdup (buf)); |
409873ef | 3787 | } |
00bf0b85 SS |
3788 | else |
3789 | { | |
409873ef SS |
3790 | /* Don't error out, the target might be sending us optional |
3791 | info that we don't care about. */ | |
3792 | warning (_("Unrecognized tracepoint piece '%c', ignoring"), piece); | |
00bf0b85 SS |
3793 | } |
3794 | } | |
3795 | ||
3796 | /* Convert a textual description of a trace state variable into an | |
3797 | uploaded object. */ | |
3798 | ||
3799 | void | |
3800 | parse_tsv_definition (char *line, struct uploaded_tsv **utsvp) | |
3801 | { | |
3802 | char *p, *buf; | |
3803 | ULONGEST num, initval, builtin; | |
3804 | int end; | |
3805 | struct uploaded_tsv *utsv = NULL; | |
3806 | ||
3807 | buf = alloca (strlen (line)); | |
3808 | ||
3809 | p = line; | |
3810 | p = unpack_varlen_hex (p, &num); | |
3811 | p++; /* skip a colon */ | |
3812 | p = unpack_varlen_hex (p, &initval); | |
3813 | p++; /* skip a colon */ | |
3814 | p = unpack_varlen_hex (p, &builtin); | |
3815 | p++; /* skip a colon */ | |
3816 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3817 | buf[end] = '\0'; | |
3818 | ||
3819 | utsv = get_uploaded_tsv (num, utsvp); | |
3820 | utsv->initial_value = initval; | |
3821 | utsv->builtin = builtin; | |
3822 | utsv->name = xstrdup (buf); | |
3823 | } | |
3824 | ||
3825 | /* Close the trace file and generally clean up. */ | |
3826 | ||
3827 | static void | |
3828 | tfile_close (int quitting) | |
3829 | { | |
3830 | int pid; | |
3831 | ||
3832 | if (trace_fd < 0) | |
3833 | return; | |
3834 | ||
3835 | pid = ptid_get_pid (inferior_ptid); | |
c378eb4e | 3836 | inferior_ptid = null_ptid; /* Avoid confusion from thread stuff. */ |
00bf0b85 SS |
3837 | exit_inferior_silent (pid); |
3838 | ||
3839 | close (trace_fd); | |
3840 | trace_fd = -1; | |
e93a69ed PA |
3841 | xfree (trace_filename); |
3842 | trace_filename = NULL; | |
00bf0b85 SS |
3843 | } |
3844 | ||
3845 | static void | |
3846 | tfile_files_info (struct target_ops *t) | |
3847 | { | |
c378eb4e | 3848 | /* (it would be useful to mention the name of the file). */ |
00bf0b85 SS |
3849 | printf_filtered ("Looking at a trace file.\n"); |
3850 | } | |
3851 | ||
3852 | /* The trace status for a file is that tracing can never be run. */ | |
3853 | ||
3854 | static int | |
3855 | tfile_get_trace_status (struct trace_status *ts) | |
3856 | { | |
3857 | /* Other bits of trace status were collected as part of opening the | |
3858 | trace files, so nothing to do here. */ | |
3859 | ||
3860 | return -1; | |
3861 | } | |
3862 | ||
3863 | /* Given the position of a traceframe in the file, figure out what | |
3864 | address the frame was collected at. This would normally be the | |
3865 | value of a collected PC register, but if not available, we | |
3866 | improvise. */ | |
3867 | ||
3868 | static ULONGEST | |
3869 | tfile_get_traceframe_address (off_t tframe_offset) | |
3870 | { | |
3871 | ULONGEST addr = 0; | |
3872 | short tpnum; | |
d9b3f62e | 3873 | struct tracepoint *tp; |
00bf0b85 SS |
3874 | off_t saved_offset = cur_offset; |
3875 | ||
c378eb4e | 3876 | /* FIXME dig pc out of collected registers. */ |
00bf0b85 SS |
3877 | |
3878 | /* Fall back to using tracepoint address. */ | |
3879 | lseek (trace_fd, tframe_offset, SEEK_SET); | |
9f41c731 | 3880 | tfile_read ((gdb_byte *) &tpnum, 2); |
8991e9fa HZ |
3881 | tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2, |
3882 | gdbarch_byte_order | |
3883 | (target_gdbarch)); | |
98e03262 | 3884 | |
00bf0b85 | 3885 | tp = get_tracepoint_by_number_on_target (tpnum); |
c378eb4e | 3886 | /* FIXME this is a poor heuristic if multiple locations. */ |
d9b3f62e PA |
3887 | if (tp && tp->base.loc) |
3888 | addr = tp->base.loc->address; | |
00bf0b85 SS |
3889 | |
3890 | /* Restore our seek position. */ | |
3891 | cur_offset = saved_offset; | |
3892 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3893 | return addr; | |
3894 | } | |
3895 | ||
e6e4e701 PA |
3896 | /* Make tfile's selected traceframe match GDB's selected |
3897 | traceframe. */ | |
3898 | ||
3899 | static void | |
3900 | set_tfile_traceframe (void) | |
3901 | { | |
3902 | int newnum; | |
3903 | ||
3904 | if (cur_traceframe_number == get_traceframe_number ()) | |
3905 | return; | |
3906 | ||
3907 | /* Avoid recursion, tfile_trace_find calls us again. */ | |
3908 | cur_traceframe_number = get_traceframe_number (); | |
3909 | ||
3910 | newnum = target_trace_find (tfind_number, | |
3911 | get_traceframe_number (), 0, 0, NULL); | |
3912 | ||
3913 | /* Should not happen. If it does, all bets are off. */ | |
3914 | if (newnum != get_traceframe_number ()) | |
3915 | warning (_("could not set tfile's traceframe")); | |
3916 | } | |
3917 | ||
00bf0b85 SS |
3918 | /* Given a type of search and some parameters, scan the collection of |
3919 | traceframes in the file looking for a match. When found, return | |
3920 | both the traceframe and tracepoint number, otherwise -1 for | |
3921 | each. */ | |
3922 | ||
3923 | static int | |
3924 | tfile_trace_find (enum trace_find_type type, int num, | |
3925 | ULONGEST addr1, ULONGEST addr2, int *tpp) | |
3926 | { | |
3927 | short tpnum; | |
9f41c731 | 3928 | int tfnum = 0, found = 0; |
8991e9fa | 3929 | unsigned int data_size; |
d9b3f62e | 3930 | struct tracepoint *tp; |
00bf0b85 SS |
3931 | off_t offset, tframe_offset; |
3932 | ULONGEST tfaddr; | |
3933 | ||
e6e4e701 PA |
3934 | /* Lookups other than by absolute frame number depend on the current |
3935 | trace selected, so make sure it is correct on the tfile end | |
3936 | first. */ | |
3937 | if (type != tfind_number) | |
3938 | set_tfile_traceframe (); | |
fb80a3c5 HZ |
3939 | else if (num == -1) |
3940 | { | |
3941 | if (tpp) | |
3942 | *tpp = -1; | |
3943 | return -1; | |
3944 | } | |
e6e4e701 | 3945 | |
00bf0b85 SS |
3946 | lseek (trace_fd, trace_frames_offset, SEEK_SET); |
3947 | offset = trace_frames_offset; | |
3948 | while (1) | |
3949 | { | |
3950 | tframe_offset = offset; | |
9f41c731 | 3951 | tfile_read ((gdb_byte *) &tpnum, 2); |
8991e9fa HZ |
3952 | tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2, |
3953 | gdbarch_byte_order | |
3954 | (target_gdbarch)); | |
00bf0b85 SS |
3955 | offset += 2; |
3956 | if (tpnum == 0) | |
3957 | break; | |
9f41c731 | 3958 | tfile_read ((gdb_byte *) &data_size, 4); |
8991e9fa HZ |
3959 | data_size = (unsigned int) extract_unsigned_integer |
3960 | ((gdb_byte *) &data_size, 4, | |
3961 | gdbarch_byte_order (target_gdbarch)); | |
00bf0b85 SS |
3962 | offset += 4; |
3963 | switch (type) | |
3964 | { | |
3965 | case tfind_number: | |
3966 | if (tfnum == num) | |
3967 | found = 1; | |
3968 | break; | |
3969 | case tfind_pc: | |
3970 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3971 | if (tfaddr == addr1) | |
3972 | found = 1; | |
3973 | break; | |
3974 | case tfind_tp: | |
3975 | tp = get_tracepoint (num); | |
3976 | if (tp && tpnum == tp->number_on_target) | |
3977 | found = 1; | |
3978 | break; | |
3979 | case tfind_range: | |
3980 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3981 | if (addr1 <= tfaddr && tfaddr <= addr2) | |
3982 | found = 1; | |
3983 | break; | |
3984 | case tfind_outside: | |
3985 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3986 | if (!(addr1 <= tfaddr && tfaddr <= addr2)) | |
3987 | found = 1; | |
3988 | break; | |
3989 | default: | |
3990 | internal_error (__FILE__, __LINE__, _("unknown tfind type")); | |
3991 | } | |
3992 | if (found) | |
3993 | { | |
00bf0b85 SS |
3994 | if (tpp) |
3995 | *tpp = tpnum; | |
3996 | cur_offset = offset; | |
3997 | cur_data_size = data_size; | |
e6e4e701 | 3998 | cur_traceframe_number = tfnum; |
00bf0b85 SS |
3999 | return tfnum; |
4000 | } | |
4001 | /* Skip past the traceframe's data. */ | |
4002 | lseek (trace_fd, data_size, SEEK_CUR); | |
4003 | offset += data_size; | |
4004 | /* Update our own count of traceframes. */ | |
4005 | ++tfnum; | |
4006 | } | |
4007 | /* Did not find what we were looking for. */ | |
4008 | if (tpp) | |
4009 | *tpp = -1; | |
4010 | return -1; | |
4011 | } | |
4012 | ||
9f41c731 PA |
4013 | /* Prototype of the callback passed to tframe_walk_blocks. */ |
4014 | typedef int (*walk_blocks_callback_func) (char blocktype, void *data); | |
4015 | ||
4016 | /* Callback for traceframe_walk_blocks, used to find a given block | |
4017 | type in a traceframe. */ | |
4018 | ||
4019 | static int | |
4020 | match_blocktype (char blocktype, void *data) | |
4021 | { | |
4022 | char *wantedp = data; | |
4023 | ||
4024 | if (*wantedp == blocktype) | |
4025 | return 1; | |
4026 | ||
4027 | return 0; | |
4028 | } | |
4029 | ||
4030 | /* Walk over all traceframe block starting at POS offset from | |
4031 | CUR_OFFSET, and call CALLBACK for each block found, passing in DATA | |
4032 | unmodified. If CALLBACK returns true, this returns the position in | |
4033 | the traceframe where the block is found, relative to the start of | |
4034 | the traceframe (cur_offset). Returns -1 if no callback call | |
4035 | returned true, indicating that all blocks have been walked. */ | |
4036 | ||
4037 | static int | |
4038 | traceframe_walk_blocks (walk_blocks_callback_func callback, | |
4039 | int pos, void *data) | |
4040 | { | |
4041 | /* Iterate through a traceframe's blocks, looking for a block of the | |
4042 | requested type. */ | |
4043 | ||
4044 | lseek (trace_fd, cur_offset + pos, SEEK_SET); | |
4045 | while (pos < cur_data_size) | |
4046 | { | |
4047 | unsigned short mlen; | |
4048 | char block_type; | |
4049 | ||
4050 | tfile_read (&block_type, 1); | |
4051 | ||
4052 | ++pos; | |
4053 | ||
4054 | if ((*callback) (block_type, data)) | |
4055 | return pos; | |
4056 | ||
4057 | switch (block_type) | |
4058 | { | |
4059 | case 'R': | |
4060 | lseek (trace_fd, cur_offset + pos + trace_regblock_size, SEEK_SET); | |
4061 | pos += trace_regblock_size; | |
4062 | break; | |
4063 | case 'M': | |
4064 | lseek (trace_fd, cur_offset + pos + 8, SEEK_SET); | |
4065 | tfile_read ((gdb_byte *) &mlen, 2); | |
4066 | mlen = (unsigned short) | |
4067 | extract_unsigned_integer ((gdb_byte *) &mlen, 2, | |
4068 | gdbarch_byte_order | |
4069 | (target_gdbarch)); | |
4070 | lseek (trace_fd, mlen, SEEK_CUR); | |
4071 | pos += (8 + 2 + mlen); | |
4072 | break; | |
4073 | case 'V': | |
4074 | lseek (trace_fd, cur_offset + pos + 4 + 8, SEEK_SET); | |
4075 | pos += (4 + 8); | |
4076 | break; | |
4077 | default: | |
c2f0d045 | 4078 | error (_("Unknown block type '%c' (0x%x) in trace frame"), |
9f41c731 PA |
4079 | block_type, block_type); |
4080 | break; | |
4081 | } | |
4082 | } | |
4083 | ||
4084 | return -1; | |
4085 | } | |
4086 | ||
4087 | /* Convenience wrapper around traceframe_walk_blocks. Looks for the | |
4088 | position offset of a block of type TYPE_WANTED in the current trace | |
4089 | frame, starting at POS. Returns -1 if no such block was found. */ | |
4090 | ||
4091 | static int | |
4092 | traceframe_find_block_type (char type_wanted, int pos) | |
4093 | { | |
4094 | return traceframe_walk_blocks (match_blocktype, pos, &type_wanted); | |
4095 | } | |
4096 | ||
00bf0b85 SS |
4097 | /* Look for a block of saved registers in the traceframe, and get the |
4098 | requested register from it. */ | |
4099 | ||
4100 | static void | |
4101 | tfile_fetch_registers (struct target_ops *ops, | |
4102 | struct regcache *regcache, int regno) | |
4103 | { | |
4104 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
4105 | char block_type; | |
9f41c731 | 4106 | int pos, offset, regn, regsize, pc_regno; |
00bf0b85 SS |
4107 | unsigned short mlen; |
4108 | char *regs; | |
4109 | ||
4110 | /* An uninitialized reg size says we're not going to be | |
4111 | successful at getting register blocks. */ | |
4112 | if (!trace_regblock_size) | |
4113 | return; | |
4114 | ||
e6e4e701 PA |
4115 | set_tfile_traceframe (); |
4116 | ||
00bf0b85 SS |
4117 | regs = alloca (trace_regblock_size); |
4118 | ||
9f41c731 | 4119 | if (traceframe_find_block_type ('R', 0) >= 0) |
00bf0b85 | 4120 | { |
9f41c731 | 4121 | tfile_read (regs, trace_regblock_size); |
98e03262 | 4122 | |
9f41c731 PA |
4123 | /* Assume the block is laid out in GDB register number order, |
4124 | each register with the size that it has in GDB. */ | |
4125 | offset = 0; | |
4126 | for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++) | |
00bf0b85 | 4127 | { |
9f41c731 PA |
4128 | regsize = register_size (gdbarch, regn); |
4129 | /* Make sure we stay within block bounds. */ | |
4130 | if (offset + regsize >= trace_regblock_size) | |
4131 | break; | |
4132 | if (regcache_register_status (regcache, regn) == REG_UNKNOWN) | |
00bf0b85 | 4133 | { |
9f41c731 | 4134 | if (regno == regn) |
00bf0b85 | 4135 | { |
9f41c731 PA |
4136 | regcache_raw_supply (regcache, regno, regs + offset); |
4137 | break; | |
4138 | } | |
4139 | else if (regno == -1) | |
4140 | { | |
4141 | regcache_raw_supply (regcache, regn, regs + offset); | |
00bf0b85 | 4142 | } |
00bf0b85 | 4143 | } |
9f41c731 | 4144 | offset += regsize; |
00bf0b85 | 4145 | } |
9f41c731 | 4146 | return; |
00bf0b85 | 4147 | } |
af54718e | 4148 | |
9f41c731 PA |
4149 | /* We get here if no register data has been found. Mark registers |
4150 | as unavailable. */ | |
af54718e SS |
4151 | for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++) |
4152 | regcache_raw_supply (regcache, regn, NULL); | |
4153 | ||
4154 | /* We can often usefully guess that the PC is going to be the same | |
4155 | as the address of the tracepoint. */ | |
4156 | pc_regno = gdbarch_pc_regnum (gdbarch); | |
4157 | if (pc_regno >= 0 && (regno == -1 || regno == pc_regno)) | |
4158 | { | |
d9b3f62e | 4159 | struct tracepoint *tp = get_tracepoint (tracepoint_number); |
af54718e | 4160 | |
d9b3f62e | 4161 | if (tp && tp->base.loc) |
af54718e SS |
4162 | { |
4163 | /* But don't try to guess if tracepoint is multi-location... */ | |
d9b3f62e | 4164 | if (tp->base.loc->next) |
af54718e | 4165 | { |
a73c6dcd MS |
4166 | warning (_("Tracepoint %d has multiple " |
4167 | "locations, cannot infer $pc"), | |
d9b3f62e | 4168 | tp->base.number); |
af54718e SS |
4169 | return; |
4170 | } | |
4171 | /* ... or does while-stepping. */ | |
4172 | if (tp->step_count > 0) | |
4173 | { | |
a73c6dcd MS |
4174 | warning (_("Tracepoint %d does while-stepping, " |
4175 | "cannot infer $pc"), | |
d9b3f62e | 4176 | tp->base.number); |
af54718e SS |
4177 | return; |
4178 | } | |
4179 | ||
4180 | store_unsigned_integer (regs, register_size (gdbarch, pc_regno), | |
4181 | gdbarch_byte_order (gdbarch), | |
d9b3f62e | 4182 | tp->base.loc->address); |
af54718e SS |
4183 | regcache_raw_supply (regcache, pc_regno, regs); |
4184 | } | |
4185 | } | |
00bf0b85 SS |
4186 | } |
4187 | ||
4188 | static LONGEST | |
4189 | tfile_xfer_partial (struct target_ops *ops, enum target_object object, | |
4190 | const char *annex, gdb_byte *readbuf, | |
4191 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
4192 | { | |
00bf0b85 SS |
4193 | /* We're only doing regular memory for now. */ |
4194 | if (object != TARGET_OBJECT_MEMORY) | |
4195 | return -1; | |
4196 | ||
4197 | if (readbuf == NULL) | |
a73c6dcd | 4198 | error (_("tfile_xfer_partial: trace file is read-only")); |
00bf0b85 | 4199 | |
e6e4e701 PA |
4200 | set_tfile_traceframe (); |
4201 | ||
4202 | if (traceframe_number != -1) | |
00bf0b85 | 4203 | { |
ffd5ec24 | 4204 | int pos = 0; |
9f41c731 | 4205 | |
ffd5ec24 PA |
4206 | /* Iterate through the traceframe's blocks, looking for |
4207 | memory. */ | |
4208 | while ((pos = traceframe_find_block_type ('M', pos)) >= 0) | |
00bf0b85 | 4209 | { |
ffd5ec24 PA |
4210 | ULONGEST maddr, amt; |
4211 | unsigned short mlen; | |
4212 | enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch); | |
fce3c1f0 | 4213 | |
ffd5ec24 PA |
4214 | tfile_read ((gdb_byte *) &maddr, 8); |
4215 | maddr = extract_unsigned_integer ((gdb_byte *) &maddr, 8, | |
4216 | byte_order); | |
4217 | tfile_read ((gdb_byte *) &mlen, 2); | |
4218 | mlen = (unsigned short) | |
4219 | extract_unsigned_integer ((gdb_byte *) &mlen, 2, byte_order); | |
4220 | ||
4221 | /* If the block includes the first part of the desired | |
4222 | range, return as much it has; GDB will re-request the | |
4223 | remainder, which might be in a different block of this | |
4224 | trace frame. */ | |
4225 | if (maddr <= offset && offset < (maddr + mlen)) | |
4226 | { | |
4227 | amt = (maddr + mlen) - offset; | |
4228 | if (amt > len) | |
4229 | amt = len; | |
4230 | ||
4231 | tfile_read (readbuf, amt); | |
4232 | return amt; | |
4233 | } | |
9f41c731 | 4234 | |
ffd5ec24 PA |
4235 | /* Skip over this block. */ |
4236 | pos += (8 + 2 + mlen); | |
4237 | } | |
00bf0b85 | 4238 | } |
fce3c1f0 SS |
4239 | |
4240 | /* It's unduly pedantic to refuse to look at the executable for | |
4241 | read-only pieces; so do the equivalent of readonly regions aka | |
4242 | QTro packet. */ | |
c378eb4e | 4243 | /* FIXME account for relocation at some point. */ |
fce3c1f0 SS |
4244 | if (exec_bfd) |
4245 | { | |
4246 | asection *s; | |
4247 | bfd_size_type size; | |
2209c807 | 4248 | bfd_vma vma; |
fce3c1f0 SS |
4249 | |
4250 | for (s = exec_bfd->sections; s; s = s->next) | |
4251 | { | |
9f41c731 PA |
4252 | if ((s->flags & SEC_LOAD) == 0 |
4253 | || (s->flags & SEC_READONLY) == 0) | |
fce3c1f0 SS |
4254 | continue; |
4255 | ||
2209c807 | 4256 | vma = s->vma; |
fce3c1f0 | 4257 | size = bfd_get_section_size (s); |
2209c807 | 4258 | if (vma <= offset && offset < (vma + size)) |
fce3c1f0 | 4259 | { |
9f41c731 PA |
4260 | ULONGEST amt; |
4261 | ||
2209c807 | 4262 | amt = (vma + size) - offset; |
fce3c1f0 SS |
4263 | if (amt > len) |
4264 | amt = len; | |
4265 | ||
4266 | amt = bfd_get_section_contents (exec_bfd, s, | |
2209c807 | 4267 | readbuf, offset - vma, amt); |
fce3c1f0 SS |
4268 | return amt; |
4269 | } | |
4270 | } | |
4271 | } | |
4272 | ||
00bf0b85 SS |
4273 | /* Indicate failure to find the requested memory block. */ |
4274 | return -1; | |
4275 | } | |
4276 | ||
4277 | /* Iterate through the blocks of a trace frame, looking for a 'V' | |
4278 | block with a matching tsv number. */ | |
4279 | ||
4280 | static int | |
4281 | tfile_get_trace_state_variable_value (int tsvnum, LONGEST *val) | |
4282 | { | |
9f41c731 | 4283 | int pos; |
00bf0b85 | 4284 | |
e6e4e701 PA |
4285 | set_tfile_traceframe (); |
4286 | ||
00bf0b85 | 4287 | pos = 0; |
9f41c731 | 4288 | while ((pos = traceframe_find_block_type ('V', pos)) >= 0) |
00bf0b85 | 4289 | { |
9f41c731 PA |
4290 | int vnum; |
4291 | ||
4292 | tfile_read ((gdb_byte *) &vnum, 4); | |
4293 | vnum = (int) extract_signed_integer ((gdb_byte *) &vnum, 4, | |
8991e9fa | 4294 | gdbarch_byte_order |
9f41c731 PA |
4295 | (target_gdbarch)); |
4296 | if (tsvnum == vnum) | |
4297 | { | |
4298 | tfile_read ((gdb_byte *) val, 8); | |
4299 | *val = extract_signed_integer ((gdb_byte *) val, 8, | |
4300 | gdbarch_byte_order | |
4301 | (target_gdbarch)); | |
4302 | return 1; | |
00bf0b85 | 4303 | } |
9f41c731 | 4304 | pos += (4 + 8); |
00bf0b85 | 4305 | } |
9f41c731 | 4306 | |
00bf0b85 SS |
4307 | /* Didn't find anything. */ |
4308 | return 0; | |
4309 | } | |
4310 | ||
fce3c1f0 SS |
4311 | static int |
4312 | tfile_has_all_memory (struct target_ops *ops) | |
4313 | { | |
4314 | return 1; | |
4315 | } | |
4316 | ||
00bf0b85 SS |
4317 | static int |
4318 | tfile_has_memory (struct target_ops *ops) | |
4319 | { | |
4320 | return 1; | |
4321 | } | |
4322 | ||
4323 | static int | |
4324 | tfile_has_stack (struct target_ops *ops) | |
4325 | { | |
ffd5ec24 | 4326 | return traceframe_number != -1; |
00bf0b85 SS |
4327 | } |
4328 | ||
4329 | static int | |
4330 | tfile_has_registers (struct target_ops *ops) | |
4331 | { | |
ffd5ec24 | 4332 | return traceframe_number != -1; |
00bf0b85 SS |
4333 | } |
4334 | ||
e93a69ed PA |
4335 | static int |
4336 | tfile_thread_alive (struct target_ops *ops, ptid_t ptid) | |
4337 | { | |
4338 | return 1; | |
4339 | } | |
4340 | ||
b3b9301e PA |
4341 | /* Callback for traceframe_walk_blocks. Builds a traceframe_info |
4342 | object for the tfile target's current traceframe. */ | |
4343 | ||
4344 | static int | |
4345 | build_traceframe_info (char blocktype, void *data) | |
4346 | { | |
4347 | struct traceframe_info *info = data; | |
4348 | ||
4349 | switch (blocktype) | |
4350 | { | |
4351 | case 'M': | |
4352 | { | |
4353 | struct mem_range *r; | |
4354 | ULONGEST maddr; | |
4355 | unsigned short mlen; | |
4356 | ||
4357 | tfile_read ((gdb_byte *) &maddr, 8); | |
4358 | tfile_read ((gdb_byte *) &mlen, 2); | |
4359 | ||
4360 | r = VEC_safe_push (mem_range_s, info->memory, NULL); | |
4361 | ||
4362 | r->start = maddr; | |
4363 | r->length = mlen; | |
4364 | break; | |
4365 | } | |
4366 | case 'V': | |
4367 | case 'R': | |
4368 | case 'S': | |
4369 | { | |
4370 | break; | |
4371 | } | |
4372 | default: | |
4373 | warning (_("Unhandled trace block type (%d) '%c ' " | |
4374 | "while building trace frame info."), | |
4375 | blocktype, blocktype); | |
4376 | break; | |
4377 | } | |
4378 | ||
4379 | return 0; | |
4380 | } | |
4381 | ||
4382 | static struct traceframe_info * | |
4383 | tfile_traceframe_info (void) | |
4384 | { | |
4385 | struct traceframe_info *info = XCNEW (struct traceframe_info); | |
4386 | ||
4387 | traceframe_walk_blocks (build_traceframe_info, 0, info); | |
4388 | return info; | |
4389 | } | |
4390 | ||
00bf0b85 SS |
4391 | static void |
4392 | init_tfile_ops (void) | |
4393 | { | |
4394 | tfile_ops.to_shortname = "tfile"; | |
4395 | tfile_ops.to_longname = "Local trace dump file"; | |
3e43a32a MS |
4396 | tfile_ops.to_doc |
4397 | = "Use a trace file as a target. Specify the filename of the trace file."; | |
00bf0b85 SS |
4398 | tfile_ops.to_open = tfile_open; |
4399 | tfile_ops.to_close = tfile_close; | |
4400 | tfile_ops.to_fetch_registers = tfile_fetch_registers; | |
4401 | tfile_ops.to_xfer_partial = tfile_xfer_partial; | |
4402 | tfile_ops.to_files_info = tfile_files_info; | |
4403 | tfile_ops.to_get_trace_status = tfile_get_trace_status; | |
4404 | tfile_ops.to_trace_find = tfile_trace_find; | |
3e43a32a MS |
4405 | tfile_ops.to_get_trace_state_variable_value |
4406 | = tfile_get_trace_state_variable_value; | |
00bf0b85 | 4407 | tfile_ops.to_stratum = process_stratum; |
fce3c1f0 | 4408 | tfile_ops.to_has_all_memory = tfile_has_all_memory; |
00bf0b85 SS |
4409 | tfile_ops.to_has_memory = tfile_has_memory; |
4410 | tfile_ops.to_has_stack = tfile_has_stack; | |
4411 | tfile_ops.to_has_registers = tfile_has_registers; | |
b3b9301e | 4412 | tfile_ops.to_traceframe_info = tfile_traceframe_info; |
e93a69ed | 4413 | tfile_ops.to_thread_alive = tfile_thread_alive; |
00bf0b85 SS |
4414 | tfile_ops.to_magic = OPS_MAGIC; |
4415 | } | |
4416 | ||
0fb4aa4b PA |
4417 | /* Given a line of text defining a static tracepoint marker, parse it |
4418 | into a "static tracepoint marker" object. Throws an error is | |
4419 | parsing fails. If PP is non-null, it points to one past the end of | |
4420 | the parsed marker definition. */ | |
4421 | ||
4422 | void | |
4423 | parse_static_tracepoint_marker_definition (char *line, char **pp, | |
4424 | struct static_tracepoint_marker *marker) | |
4425 | { | |
4426 | char *p, *endp; | |
4427 | ULONGEST addr; | |
4428 | int end; | |
4429 | ||
4430 | p = line; | |
4431 | p = unpack_varlen_hex (p, &addr); | |
4432 | p++; /* skip a colon */ | |
4433 | ||
4434 | marker->gdbarch = target_gdbarch; | |
4435 | marker->address = (CORE_ADDR) addr; | |
4436 | ||
4437 | endp = strchr (p, ':'); | |
4438 | if (endp == NULL) | |
74232302 | 4439 | error (_("bad marker definition: %s"), line); |
0fb4aa4b PA |
4440 | |
4441 | marker->str_id = xmalloc (endp - p + 1); | |
4442 | end = hex2bin (p, (gdb_byte *) marker->str_id, (endp - p + 1) / 2); | |
4443 | marker->str_id[end] = '\0'; | |
4444 | ||
4445 | p += 2 * end; | |
4446 | p++; /* skip a colon */ | |
4447 | ||
4448 | marker->extra = xmalloc (strlen (p) + 1); | |
4449 | end = hex2bin (p, (gdb_byte *) marker->extra, strlen (p) / 2); | |
4450 | marker->extra[end] = '\0'; | |
4451 | ||
4452 | if (pp) | |
4453 | *pp = p; | |
4454 | } | |
4455 | ||
4456 | /* Release a static tracepoint marker's contents. Note that the | |
4457 | object itself isn't released here. There objects are usually on | |
4458 | the stack. */ | |
4459 | ||
4460 | void | |
4461 | release_static_tracepoint_marker (struct static_tracepoint_marker *marker) | |
4462 | { | |
4463 | xfree (marker->str_id); | |
4464 | marker->str_id = NULL; | |
4465 | } | |
4466 | ||
4467 | /* Print MARKER to gdb_stdout. */ | |
4468 | ||
4469 | static void | |
4470 | print_one_static_tracepoint_marker (int count, | |
4471 | struct static_tracepoint_marker *marker) | |
4472 | { | |
4473 | struct command_line *l; | |
4474 | struct symbol *sym; | |
4475 | ||
4476 | char wrap_indent[80]; | |
4477 | char extra_field_indent[80]; | |
79a45e25 | 4478 | struct ui_out *uiout = current_uiout; |
0fb4aa4b PA |
4479 | struct ui_stream *stb = ui_out_stream_new (uiout); |
4480 | struct cleanup *old_chain = make_cleanup_ui_out_stream_delete (stb); | |
4481 | struct cleanup *bkpt_chain; | |
4482 | VEC(breakpoint_p) *tracepoints; | |
4483 | ||
4484 | struct symtab_and_line sal; | |
4485 | ||
4486 | init_sal (&sal); | |
4487 | ||
4488 | sal.pc = marker->address; | |
4489 | ||
4490 | tracepoints = static_tracepoints_here (marker->address); | |
4491 | ||
4492 | bkpt_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "marker"); | |
4493 | ||
4494 | /* A counter field to help readability. This is not a stable | |
4495 | identifier! */ | |
4496 | ui_out_field_int (uiout, "count", count); | |
4497 | ||
4498 | ui_out_field_string (uiout, "marker-id", marker->str_id); | |
4499 | ||
4500 | ui_out_field_fmt (uiout, "enabled", "%c", | |
4501 | !VEC_empty (breakpoint_p, tracepoints) ? 'y' : 'n'); | |
4502 | ui_out_spaces (uiout, 2); | |
4503 | ||
4504 | strcpy (wrap_indent, " "); | |
4505 | ||
4506 | if (gdbarch_addr_bit (marker->gdbarch) <= 32) | |
4507 | strcat (wrap_indent, " "); | |
4508 | else | |
4509 | strcat (wrap_indent, " "); | |
4510 | ||
4511 | strcpy (extra_field_indent, " "); | |
4512 | ||
4513 | ui_out_field_core_addr (uiout, "addr", marker->gdbarch, marker->address); | |
4514 | ||
4515 | sal = find_pc_line (marker->address, 0); | |
4516 | sym = find_pc_sect_function (marker->address, NULL); | |
4517 | if (sym) | |
4518 | { | |
4519 | ui_out_text (uiout, "in "); | |
4520 | ui_out_field_string (uiout, "func", | |
4521 | SYMBOL_PRINT_NAME (sym)); | |
4522 | ui_out_wrap_hint (uiout, wrap_indent); | |
4523 | ui_out_text (uiout, " at "); | |
4524 | } | |
4525 | else | |
4526 | ui_out_field_skip (uiout, "func"); | |
4527 | ||
4528 | if (sal.symtab != NULL) | |
4529 | { | |
4530 | ui_out_field_string (uiout, "file", sal.symtab->filename); | |
4531 | ui_out_text (uiout, ":"); | |
4532 | ||
4533 | if (ui_out_is_mi_like_p (uiout)) | |
4534 | { | |
4535 | char *fullname = symtab_to_fullname (sal.symtab); | |
4536 | ||
4537 | if (fullname) | |
4538 | ui_out_field_string (uiout, "fullname", fullname); | |
4539 | } | |
4540 | else | |
4541 | ui_out_field_skip (uiout, "fullname"); | |
4542 | ||
4543 | ui_out_field_int (uiout, "line", sal.line); | |
4544 | } | |
4545 | else | |
4546 | { | |
4547 | ui_out_field_skip (uiout, "fullname"); | |
4548 | ui_out_field_skip (uiout, "line"); | |
4549 | } | |
4550 | ||
4551 | ui_out_text (uiout, "\n"); | |
4552 | ui_out_text (uiout, extra_field_indent); | |
4553 | ui_out_text (uiout, _("Data: \"")); | |
4554 | ui_out_field_string (uiout, "extra-data", marker->extra); | |
4555 | ui_out_text (uiout, "\"\n"); | |
4556 | ||
4557 | if (!VEC_empty (breakpoint_p, tracepoints)) | |
4558 | { | |
4559 | struct cleanup *cleanup_chain; | |
4560 | int ix; | |
4561 | struct breakpoint *b; | |
4562 | ||
4563 | cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, | |
4564 | "tracepoints-at"); | |
4565 | ||
4566 | ui_out_text (uiout, extra_field_indent); | |
4567 | ui_out_text (uiout, _("Probed by static tracepoints: ")); | |
4568 | for (ix = 0; VEC_iterate(breakpoint_p, tracepoints, ix, b); ix++) | |
4569 | { | |
4570 | if (ix > 0) | |
4571 | ui_out_text (uiout, ", "); | |
4572 | ui_out_text (uiout, "#"); | |
4573 | ui_out_field_int (uiout, "tracepoint-id", b->number); | |
4574 | } | |
4575 | ||
4576 | do_cleanups (cleanup_chain); | |
4577 | ||
4578 | if (ui_out_is_mi_like_p (uiout)) | |
4579 | ui_out_field_int (uiout, "number-of-tracepoints", | |
4580 | VEC_length(breakpoint_p, tracepoints)); | |
4581 | else | |
4582 | ui_out_text (uiout, "\n"); | |
4583 | } | |
4584 | VEC_free (breakpoint_p, tracepoints); | |
4585 | ||
4586 | do_cleanups (bkpt_chain); | |
4587 | do_cleanups (old_chain); | |
4588 | } | |
4589 | ||
4590 | static void | |
4591 | info_static_tracepoint_markers_command (char *arg, int from_tty) | |
4592 | { | |
4593 | VEC(static_tracepoint_marker_p) *markers; | |
4594 | struct cleanup *old_chain; | |
4595 | struct static_tracepoint_marker *marker; | |
79a45e25 | 4596 | struct ui_out *uiout = current_uiout; |
0fb4aa4b PA |
4597 | int i; |
4598 | ||
4599 | old_chain | |
4600 | = make_cleanup_ui_out_table_begin_end (uiout, 5, -1, | |
4601 | "StaticTracepointMarkersTable"); | |
4602 | ||
4603 | ui_out_table_header (uiout, 7, ui_left, "counter", "Cnt"); | |
4604 | ||
4605 | ui_out_table_header (uiout, 40, ui_left, "marker-id", "ID"); | |
4606 | ||
4607 | ui_out_table_header (uiout, 3, ui_left, "enabled", "Enb"); | |
4608 | if (gdbarch_addr_bit (target_gdbarch) <= 32) | |
4609 | ui_out_table_header (uiout, 10, ui_left, "addr", "Address"); | |
4610 | else | |
4611 | ui_out_table_header (uiout, 18, ui_left, "addr", "Address"); | |
4612 | ui_out_table_header (uiout, 40, ui_noalign, "what", "What"); | |
4613 | ||
4614 | ui_out_table_body (uiout); | |
4615 | ||
4616 | markers = target_static_tracepoint_markers_by_strid (NULL); | |
4617 | make_cleanup (VEC_cleanup (static_tracepoint_marker_p), &markers); | |
4618 | ||
4619 | for (i = 0; | |
4620 | VEC_iterate (static_tracepoint_marker_p, | |
4621 | markers, i, marker); | |
4622 | i++) | |
4623 | { | |
4624 | print_one_static_tracepoint_marker (i + 1, marker); | |
4625 | release_static_tracepoint_marker (marker); | |
4626 | } | |
4627 | ||
4628 | do_cleanups (old_chain); | |
4629 | } | |
4630 | ||
4631 | /* The $_sdata convenience variable is a bit special. We don't know | |
4632 | for sure type of the value until we actually have a chance to fetch | |
4633 | the data --- the size of the object depends on what has been | |
4634 | collected. We solve this by making $_sdata be an internalvar that | |
4635 | creates a new value on access. */ | |
4636 | ||
4637 | /* Return a new value with the correct type for the sdata object of | |
4638 | the current trace frame. Return a void value if there's no object | |
4639 | available. */ | |
4640 | ||
4641 | static struct value * | |
4642 | sdata_make_value (struct gdbarch *gdbarch, struct internalvar *var) | |
4643 | { | |
4644 | LONGEST size; | |
4645 | gdb_byte *buf; | |
4646 | ||
4647 | /* We need to read the whole object before we know its size. */ | |
4648 | size = target_read_alloc (¤t_target, | |
4649 | TARGET_OBJECT_STATIC_TRACE_DATA, | |
4650 | NULL, &buf); | |
4651 | if (size >= 0) | |
4652 | { | |
4653 | struct value *v; | |
4654 | struct type *type; | |
4655 | ||
4656 | type = init_vector_type (builtin_type (gdbarch)->builtin_true_char, | |
4657 | size); | |
4658 | v = allocate_value (type); | |
4659 | memcpy (value_contents_raw (v), buf, size); | |
4660 | xfree (buf); | |
4661 | return v; | |
4662 | } | |
4663 | else | |
4664 | return allocate_value (builtin_type (gdbarch)->builtin_void); | |
4665 | } | |
4666 | ||
b3b9301e PA |
4667 | #if !defined(HAVE_LIBEXPAT) |
4668 | ||
4669 | struct traceframe_info * | |
4670 | parse_traceframe_info (const char *tframe_info) | |
4671 | { | |
4672 | static int have_warned; | |
4673 | ||
4674 | if (!have_warned) | |
4675 | { | |
4676 | have_warned = 1; | |
4677 | warning (_("Can not parse XML trace frame info; XML support " | |
4678 | "was disabled at compile time")); | |
4679 | } | |
4680 | ||
4681 | return NULL; | |
4682 | } | |
4683 | ||
4684 | #else /* HAVE_LIBEXPAT */ | |
4685 | ||
4686 | #include "xml-support.h" | |
4687 | ||
4688 | /* Handle the start of a <memory> element. */ | |
4689 | ||
4690 | static void | |
4691 | traceframe_info_start_memory (struct gdb_xml_parser *parser, | |
4692 | const struct gdb_xml_element *element, | |
4693 | void *user_data, VEC(gdb_xml_value_s) *attributes) | |
4694 | { | |
4695 | struct traceframe_info *info = user_data; | |
4696 | struct mem_range *r = VEC_safe_push (mem_range_s, info->memory, NULL); | |
4697 | ULONGEST *start_p, *length_p; | |
4698 | ||
4699 | start_p = xml_find_attribute (attributes, "start")->value; | |
4700 | length_p = xml_find_attribute (attributes, "length")->value; | |
4701 | ||
4702 | r->start = *start_p; | |
4703 | r->length = *length_p; | |
4704 | } | |
4705 | ||
4706 | /* Discard the constructed trace frame info (if an error occurs). */ | |
4707 | ||
4708 | static void | |
4709 | free_result (void *p) | |
4710 | { | |
4711 | struct traceframe_info *result = p; | |
4712 | ||
4713 | free_traceframe_info (result); | |
4714 | } | |
4715 | ||
4716 | /* The allowed elements and attributes for an XML memory map. */ | |
4717 | ||
4718 | static const struct gdb_xml_attribute memory_attributes[] = { | |
4719 | { "start", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL }, | |
4720 | { "length", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL }, | |
4721 | { NULL, GDB_XML_AF_NONE, NULL, NULL } | |
4722 | }; | |
4723 | ||
4724 | static const struct gdb_xml_element traceframe_info_children[] = { | |
4725 | { "memory", memory_attributes, NULL, | |
4726 | GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL, | |
4727 | traceframe_info_start_memory, NULL }, | |
4728 | { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL } | |
4729 | }; | |
4730 | ||
4731 | static const struct gdb_xml_element traceframe_info_elements[] = { | |
4732 | { "traceframe-info", NULL, traceframe_info_children, GDB_XML_EF_NONE, | |
4733 | NULL, NULL }, | |
4734 | { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL } | |
4735 | }; | |
4736 | ||
4737 | /* Parse a traceframe-info XML document. */ | |
4738 | ||
4739 | struct traceframe_info * | |
4740 | parse_traceframe_info (const char *tframe_info) | |
4741 | { | |
4742 | struct traceframe_info *result; | |
4743 | struct cleanup *back_to; | |
4744 | ||
4745 | result = XCNEW (struct traceframe_info); | |
4746 | back_to = make_cleanup (free_result, result); | |
4747 | ||
4748 | if (gdb_xml_parse_quick (_("trace frame info"), | |
4749 | "traceframe-info.dtd", traceframe_info_elements, | |
4750 | tframe_info, result) == 0) | |
4751 | { | |
4752 | /* Parsed successfully, keep the result. */ | |
4753 | discard_cleanups (back_to); | |
4754 | ||
4755 | return result; | |
4756 | } | |
4757 | ||
4758 | do_cleanups (back_to); | |
4759 | return NULL; | |
4760 | } | |
4761 | ||
4762 | #endif /* HAVE_LIBEXPAT */ | |
4763 | ||
4764 | /* Returns the traceframe_info object for the current traceframe. | |
4765 | This is where we avoid re-fetching the object from the target if we | |
4766 | already have it cached. */ | |
4767 | ||
4768 | struct traceframe_info * | |
4769 | get_traceframe_info (void) | |
4770 | { | |
4771 | if (traceframe_info == NULL) | |
4772 | traceframe_info = target_traceframe_info (); | |
4773 | ||
4774 | return traceframe_info; | |
4775 | } | |
4776 | ||
c0f61f9c PA |
4777 | /* If the target supports the query, return in RESULT the set of |
4778 | collected memory in the current traceframe, found within the LEN | |
4779 | bytes range starting at MEMADDR. Returns true if the target | |
4780 | supports the query, otherwise returns false, and RESULT is left | |
4781 | undefined. */ | |
2a7498d8 PA |
4782 | |
4783 | int | |
4784 | traceframe_available_memory (VEC(mem_range_s) **result, | |
4785 | CORE_ADDR memaddr, ULONGEST len) | |
4786 | { | |
4787 | struct traceframe_info *info = get_traceframe_info (); | |
4788 | ||
4789 | if (info != NULL) | |
4790 | { | |
4791 | struct mem_range *r; | |
4792 | int i; | |
4793 | ||
4794 | *result = NULL; | |
4795 | ||
4796 | for (i = 0; VEC_iterate (mem_range_s, info->memory, i, r); i++) | |
4797 | if (mem_ranges_overlap (r->start, r->length, memaddr, len)) | |
4798 | { | |
4799 | ULONGEST lo1, hi1, lo2, hi2; | |
4800 | struct mem_range *nr; | |
4801 | ||
4802 | lo1 = memaddr; | |
4803 | hi1 = memaddr + len; | |
4804 | ||
4805 | lo2 = r->start; | |
4806 | hi2 = r->start + r->length; | |
4807 | ||
4808 | nr = VEC_safe_push (mem_range_s, *result, NULL); | |
4809 | ||
4810 | nr->start = max (lo1, lo2); | |
4811 | nr->length = min (hi1, hi2) - nr->start; | |
4812 | } | |
4813 | ||
4814 | normalize_mem_ranges (*result); | |
4815 | return 1; | |
4816 | } | |
4817 | ||
4818 | return 0; | |
4819 | } | |
4820 | ||
c906108c SS |
4821 | /* module initialization */ |
4822 | void | |
fba45db2 | 4823 | _initialize_tracepoint (void) |
c906108c | 4824 | { |
fa58ee11 EZ |
4825 | struct cmd_list_element *c; |
4826 | ||
0fb4aa4b PA |
4827 | /* Explicitly create without lookup, since that tries to create a |
4828 | value with a void typed value, and when we get here, gdbarch | |
4829 | isn't initialized yet. At this point, we're quite sure there | |
4830 | isn't another convenience variable of the same name. */ | |
4831 | create_internalvar_type_lazy ("_sdata", sdata_make_value); | |
4832 | ||
c906108c SS |
4833 | traceframe_number = -1; |
4834 | tracepoint_number = -1; | |
4835 | ||
c906108c SS |
4836 | if (tracepoint_list.list == NULL) |
4837 | { | |
4838 | tracepoint_list.listsize = 128; | |
c5aa993b | 4839 | tracepoint_list.list = xmalloc |
c906108c SS |
4840 | (tracepoint_list.listsize * sizeof (struct memrange)); |
4841 | } | |
4842 | if (tracepoint_list.aexpr_list == NULL) | |
4843 | { | |
4844 | tracepoint_list.aexpr_listsize = 128; | |
4845 | tracepoint_list.aexpr_list = xmalloc | |
4846 | (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
4847 | } | |
4848 | ||
4849 | if (stepping_list.list == NULL) | |
4850 | { | |
4851 | stepping_list.listsize = 128; | |
c5aa993b | 4852 | stepping_list.list = xmalloc |
c906108c SS |
4853 | (stepping_list.listsize * sizeof (struct memrange)); |
4854 | } | |
4855 | ||
4856 | if (stepping_list.aexpr_list == NULL) | |
4857 | { | |
4858 | stepping_list.aexpr_listsize = 128; | |
4859 | stepping_list.aexpr_list = xmalloc | |
4860 | (stepping_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
4861 | } | |
4862 | ||
c5aa993b | 4863 | add_info ("scope", scope_info, |
1bedd215 | 4864 | _("List the variables local to a scope")); |
c906108c | 4865 | |
e00d1dc8 | 4866 | add_cmd ("tracepoints", class_trace, NULL, |
1a966eab | 4867 | _("Tracing of program execution without stopping the program."), |
c906108c SS |
4868 | &cmdlist); |
4869 | ||
c5aa993b | 4870 | add_com ("tdump", class_trace, trace_dump_command, |
1bedd215 | 4871 | _("Print everything collected at the current tracepoint.")); |
c906108c | 4872 | |
00bf0b85 SS |
4873 | add_com ("tsave", class_trace, trace_save_command, _("\ |
4874 | Save the trace data to a file.\n\ | |
4875 | Use the '-r' option to direct the target to save directly to the file,\n\ | |
4876 | using its own filesystem.")); | |
4877 | ||
f61e138d SS |
4878 | c = add_com ("tvariable", class_trace, trace_variable_command,_("\ |
4879 | Define a trace state variable.\n\ | |
4880 | Argument is a $-prefixed name, optionally followed\n\ | |
4881 | by '=' and an expression that sets the initial value\n\ | |
4882 | at the start of tracing.")); | |
4883 | set_cmd_completer (c, expression_completer); | |
4884 | ||
4885 | add_cmd ("tvariable", class_trace, delete_trace_variable_command, _("\ | |
4886 | Delete one or more trace state variables.\n\ | |
4887 | Arguments are the names of the variables to delete.\n\ | |
4888 | If no arguments are supplied, delete all variables."), &deletelist); | |
c378eb4e | 4889 | /* FIXME add a trace variable completer. */ |
f61e138d SS |
4890 | |
4891 | add_info ("tvariables", tvariables_info, _("\ | |
4892 | Status of trace state variables and their values.\n\ | |
0fb4aa4b PA |
4893 | ")); |
4894 | ||
4895 | add_info ("static-tracepoint-markers", | |
4896 | info_static_tracepoint_markers_command, _("\ | |
4897 | List target static tracepoints markers.\n\ | |
f61e138d SS |
4898 | ")); |
4899 | ||
1bedd215 AC |
4900 | add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\ |
4901 | Select a trace frame;\n\ | |
4902 | No argument means forward by one frame; '-' means backward by one frame."), | |
c906108c SS |
4903 | &tfindlist, "tfind ", 1, &cmdlist); |
4904 | ||
1a966eab | 4905 | add_cmd ("outside", class_trace, trace_find_outside_command, _("\ |
081dfbf7 | 4906 | Select a trace frame whose PC is outside the given range (exclusive).\n\ |
1a966eab | 4907 | Usage: tfind outside addr1, addr2"), |
c906108c SS |
4908 | &tfindlist); |
4909 | ||
1a966eab | 4910 | add_cmd ("range", class_trace, trace_find_range_command, _("\ |
081dfbf7 | 4911 | Select a trace frame whose PC is in the given range (inclusive).\n\ |
1a966eab | 4912 | Usage: tfind range addr1,addr2"), |
c906108c SS |
4913 | &tfindlist); |
4914 | ||
1a966eab AC |
4915 | add_cmd ("line", class_trace, trace_find_line_command, _("\ |
4916 | Select a trace frame by source line.\n\ | |
cce7e648 | 4917 | Argument can be a line number (with optional source file),\n\ |
c906108c | 4918 | a function name, or '*' followed by an address.\n\ |
1a966eab | 4919 | Default argument is 'the next source line that was traced'."), |
c906108c SS |
4920 | &tfindlist); |
4921 | ||
1a966eab AC |
4922 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, _("\ |
4923 | Select a trace frame by tracepoint number.\n\ | |
4924 | Default is the tracepoint for the current trace frame."), | |
c906108c SS |
4925 | &tfindlist); |
4926 | ||
1a966eab AC |
4927 | add_cmd ("pc", class_trace, trace_find_pc_command, _("\ |
4928 | Select a trace frame by PC.\n\ | |
4929 | Default is the current PC, or the PC of the current trace frame."), | |
c906108c SS |
4930 | &tfindlist); |
4931 | ||
1a966eab AC |
4932 | add_cmd ("end", class_trace, trace_find_end_command, _("\ |
4933 | Synonym for 'none'.\n\ | |
4934 | De-select any trace frame and resume 'live' debugging."), | |
c906108c SS |
4935 | &tfindlist); |
4936 | ||
4937 | add_cmd ("none", class_trace, trace_find_none_command, | |
1a966eab | 4938 | _("De-select any trace frame and resume 'live' debugging."), |
c906108c SS |
4939 | &tfindlist); |
4940 | ||
4941 | add_cmd ("start", class_trace, trace_find_start_command, | |
1a966eab | 4942 | _("Select the first trace frame in the trace buffer."), |
c906108c SS |
4943 | &tfindlist); |
4944 | ||
c5aa993b | 4945 | add_com ("tstatus", class_trace, trace_status_command, |
1bedd215 | 4946 | _("Display the status of the current trace data collection.")); |
c906108c | 4947 | |
c5aa993b | 4948 | add_com ("tstop", class_trace, trace_stop_command, |
1bedd215 | 4949 | _("Stop trace data collection.")); |
c906108c SS |
4950 | |
4951 | add_com ("tstart", class_trace, trace_start_command, | |
1bedd215 | 4952 | _("Start trace data collection.")); |
c906108c | 4953 | |
1bedd215 AC |
4954 | add_com ("end", class_trace, end_actions_pseudocommand, _("\ |
4955 | Ends a list of commands or actions.\n\ | |
c906108c SS |
4956 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
4957 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
4958 | such a list.\n\n\ | |
1bedd215 | 4959 | Note: the \"end\" command cannot be used at the gdb prompt.")); |
c906108c | 4960 | |
1bedd215 AC |
4961 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, _("\ |
4962 | Specify single-stepping behavior at a tracepoint.\n\ | |
c906108c SS |
4963 | Argument is number of instructions to trace in single-step mode\n\ |
4964 | following the tracepoint. This command is normally followed by\n\ | |
4965 | one or more \"collect\" commands, to specify what to collect\n\ | |
4966 | while single-stepping.\n\n\ | |
1bedd215 | 4967 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 4968 | |
c5aa993b JM |
4969 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
4970 | add_com_alias ("stepping", "while-stepping", class_alias, 0); | |
c906108c | 4971 | |
1bedd215 AC |
4972 | add_com ("collect", class_trace, collect_pseudocommand, _("\ |
4973 | Specify one or more data items to be collected at a tracepoint.\n\ | |
c906108c SS |
4974 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
4975 | collect all data (variables, registers) referenced by that expression.\n\ | |
4976 | Also accepts the following special arguments:\n\ | |
4977 | $regs -- all registers.\n\ | |
4978 | $args -- all function arguments.\n\ | |
4979 | $locals -- all variables local to the block/function scope.\n\ | |
0fb4aa4b | 4980 | $_sdata -- static tracepoint data (ignored for non-static tracepoints).\n\ |
1bedd215 | 4981 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 4982 | |
6da95a67 SS |
4983 | add_com ("teval", class_trace, teval_pseudocommand, _("\ |
4984 | Specify one or more expressions to be evaluated at a tracepoint.\n\ | |
4985 | Accepts a comma-separated list of (one or more) expressions.\n\ | |
4986 | The result of each evaluation will be discarded.\n\ | |
4987 | Note: this command can only be used in a tracepoint \"actions\" list.")); | |
4988 | ||
1bedd215 AC |
4989 | add_com ("actions", class_trace, trace_actions_command, _("\ |
4990 | Specify the actions to be taken at a tracepoint.\n\ | |
cce7e648 PA |
4991 | Tracepoint actions may include collecting of specified data,\n\ |
4992 | single-stepping, or enabling/disabling other tracepoints,\n\ | |
1bedd215 | 4993 | depending on target's capabilities.")); |
c906108c | 4994 | |
236f1d4d SS |
4995 | default_collect = xstrdup (""); |
4996 | add_setshow_string_cmd ("default-collect", class_trace, | |
4997 | &default_collect, _("\ | |
4998 | Set the list of expressions to collect by default"), _("\ | |
4999 | Show the list of expressions to collect by default"), NULL, | |
5000 | NULL, NULL, | |
5001 | &setlist, &showlist); | |
5002 | ||
d5551862 SS |
5003 | add_setshow_boolean_cmd ("disconnected-tracing", no_class, |
5004 | &disconnected_tracing, _("\ | |
5005 | Set whether tracing continues after GDB disconnects."), _("\ | |
5006 | Show whether tracing continues after GDB disconnects."), _("\ | |
5007 | Use this to continue a tracing run even if GDB disconnects\n\ | |
5008 | or detaches from the target. You can reconnect later and look at\n\ | |
5009 | trace data collected in the meantime."), | |
5010 | set_disconnected_tracing, | |
5011 | NULL, | |
5012 | &setlist, | |
5013 | &showlist); | |
00bf0b85 | 5014 | |
4daf5ac0 SS |
5015 | add_setshow_boolean_cmd ("circular-trace-buffer", no_class, |
5016 | &circular_trace_buffer, _("\ | |
5017 | Set target's use of circular trace buffer."), _("\ | |
5018 | Show target's use of circular trace buffer."), _("\ | |
5019 | Use this to make the trace buffer into a circular buffer,\n\ | |
5020 | which will discard traceframes (oldest first) instead of filling\n\ | |
5021 | up and stopping the trace run."), | |
5022 | set_circular_trace_buffer, | |
5023 | NULL, | |
5024 | &setlist, | |
5025 | &showlist); | |
5026 | ||
00bf0b85 SS |
5027 | init_tfile_ops (); |
5028 | ||
5029 | add_target (&tfile_ops); | |
c906108c | 5030 | } |