Commit | Line | Data |
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c906108c | 1 | /* Tracing functionality for remote targets in custom GDB protocol |
9f60d481 | 2 | |
3666a048 | 3 | Copyright (C) 1997-2021 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
5af949e3 | 21 | #include "arch-utils.h" |
c906108c SS |
22 | #include "symtab.h" |
23 | #include "frame.h" | |
c906108c SS |
24 | #include "gdbtypes.h" |
25 | #include "expression.h" | |
26 | #include "gdbcmd.h" | |
27 | #include "value.h" | |
28 | #include "target.h" | |
68c765e2 | 29 | #include "target-dcache.h" |
c906108c | 30 | #include "language.h" |
104c1213 | 31 | #include "inferior.h" |
1042e4c0 | 32 | #include "breakpoint.h" |
104c1213 | 33 | #include "tracepoint.h" |
c5f0f3d0 | 34 | #include "linespec.h" |
4e052eda | 35 | #include "regcache.h" |
c94fdfd0 | 36 | #include "completer.h" |
fe898f56 | 37 | #include "block.h" |
de4f826b | 38 | #include "dictionary.h" |
76727919 | 39 | #include "observable.h" |
029a67e4 | 40 | #include "user-regs.h" |
79a45b7d | 41 | #include "valprint.h" |
41575630 | 42 | #include "gdbcore.h" |
768a979c | 43 | #include "objfiles.h" |
35b1e5cc | 44 | #include "filenames.h" |
00bf0b85 | 45 | #include "gdbthread.h" |
2c58c0a9 | 46 | #include "stack.h" |
176a6961 | 47 | #include "remote.h" |
0fb4aa4b | 48 | #include "source.h" |
c906108c SS |
49 | #include "ax.h" |
50 | #include "ax-gdb.h" | |
2a7498d8 | 51 | #include "memrange.h" |
3065dfb6 | 52 | #include "cli/cli-utils.h" |
55aa24fb | 53 | #include "probe.h" |
268a13a5 TT |
54 | #include "gdbsupport/filestuff.h" |
55 | #include "gdbsupport/rsp-low.h" | |
7951c4eb | 56 | #include "tracefile.h" |
f00aae0f | 57 | #include "location.h" |
325fac50 | 58 | #include <algorithm> |
e43b10e1 | 59 | #include "cli/cli-style.h" |
413403fc | 60 | #include "expop.h" |
c906108c | 61 | |
c906108c | 62 | #include <unistd.h> |
c906108c | 63 | |
d183932d MS |
64 | /* Maximum length of an agent aexpression. |
65 | This accounts for the fact that packets are limited to 400 bytes | |
c906108c SS |
66 | (which includes everything -- including the checksum), and assumes |
67 | the worst case of maximum length for each of the pieces of a | |
68 | continuation packet. | |
c5aa993b | 69 | |
c906108c SS |
70 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
71 | large. (400 - 31)/2 == 184 */ | |
72 | #define MAX_AGENT_EXPR_LEN 184 | |
73 | ||
98c5b216 TT |
74 | /* A hook used to notify the UI of tracepoint operations. */ |
75 | ||
76 | void (*deprecated_trace_find_hook) (char *arg, int from_tty); | |
77 | void (*deprecated_trace_start_stop_hook) (int start, int from_tty); | |
c906108c | 78 | |
c906108c SS |
79 | /* |
80 | Tracepoint.c: | |
81 | ||
82 | This module defines the following debugger commands: | |
83 | trace : set a tracepoint on a function, line, or address. | |
84 | info trace : list all debugger-defined tracepoints. | |
85 | delete trace : delete one or more tracepoints. | |
86 | enable trace : enable one or more tracepoints. | |
87 | disable trace : disable one or more tracepoints. | |
88 | actions : specify actions to be taken at a tracepoint. | |
89 | passcount : specify a pass count for a tracepoint. | |
90 | tstart : start a trace experiment. | |
91 | tstop : stop a trace experiment. | |
92 | tstatus : query the status of a trace experiment. | |
93 | tfind : find a trace frame in the trace buffer. | |
94 | tdump : print everything collected at the current tracepoint. | |
95 | save-tracepoints : write tracepoint setup into a file. | |
96 | ||
97 | This module defines the following user-visible debugger variables: | |
98 | $trace_frame : sequence number of trace frame currently being debugged. | |
99 | $trace_line : source line of trace frame currently being debugged. | |
100 | $trace_file : source file of trace frame currently being debugged. | |
101 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
c5aa993b | 102 | */ |
c906108c SS |
103 | |
104 | ||
105 | /* ======= Important global variables: ======= */ | |
106 | ||
f61e138d SS |
107 | /* The list of all trace state variables. We don't retain pointers to |
108 | any of these for any reason - API is by name or number only - so it | |
109 | works to have a vector of objects. */ | |
110 | ||
c252925c | 111 | static std::vector<trace_state_variable> tvariables; |
f61e138d SS |
112 | |
113 | /* The next integer to assign to a variable. */ | |
114 | ||
115 | static int next_tsv_number = 1; | |
116 | ||
c906108c SS |
117 | /* Number of last traceframe collected. */ |
118 | static int traceframe_number; | |
119 | ||
120 | /* Tracepoint for last traceframe collected. */ | |
121 | static int tracepoint_number; | |
122 | ||
b3b9301e PA |
123 | /* The traceframe info of the current traceframe. NULL if we haven't |
124 | yet attempted to fetch it, or if the target does not support | |
125 | fetching this object, or if we're not inspecting a traceframe | |
126 | presently. */ | |
2098b393 | 127 | static traceframe_info_up current_traceframe_info; |
b3b9301e | 128 | |
c378eb4e | 129 | /* Tracing command lists. */ |
c906108c SS |
130 | static struct cmd_list_element *tfindlist; |
131 | ||
236f1d4d | 132 | /* List of expressions to collect by default at each tracepoint hit. */ |
bde6261a | 133 | char *default_collect; |
236f1d4d | 134 | |
491144b5 | 135 | static bool disconnected_tracing; |
d5551862 | 136 | |
4daf5ac0 SS |
137 | /* This variable controls whether we ask the target for a linear or |
138 | circular trace buffer. */ | |
139 | ||
491144b5 | 140 | static bool circular_trace_buffer; |
4daf5ac0 | 141 | |
f6f899bf HAQ |
142 | /* This variable is the requested trace buffer size, or -1 to indicate |
143 | that we don't care and leave it up to the target to set a size. */ | |
144 | ||
145 | static int trace_buffer_size = -1; | |
146 | ||
f196051f SS |
147 | /* Textual notes applying to the current and/or future trace runs. */ |
148 | ||
6bd434d6 | 149 | static char *trace_user = NULL; |
f196051f SS |
150 | |
151 | /* Textual notes applying to the current and/or future trace runs. */ | |
152 | ||
6bd434d6 | 153 | static char *trace_notes = NULL; |
f196051f SS |
154 | |
155 | /* Textual notes applying to the stopping of a trace. */ | |
156 | ||
6bd434d6 | 157 | static char *trace_stop_notes = NULL; |
f196051f | 158 | |
c906108c | 159 | /* support routines */ |
c906108c SS |
160 | |
161 | struct collection_list; | |
47b667de | 162 | static char *mem2hex (gdb_byte *, char *, int); |
392a587b | 163 | |
12973681 | 164 | static counted_command_line all_tracepoint_actions (struct breakpoint *); |
00bf0b85 | 165 | |
00bf0b85 SS |
166 | static struct trace_status trace_status; |
167 | ||
7951c4eb | 168 | const char *stop_reason_names[] = { |
00bf0b85 SS |
169 | "tunknown", |
170 | "tnotrun", | |
171 | "tstop", | |
172 | "tfull", | |
173 | "tdisconnected", | |
6c28cbf2 SS |
174 | "tpasscount", |
175 | "terror" | |
00bf0b85 SS |
176 | }; |
177 | ||
178 | struct trace_status * | |
eeae04df | 179 | current_trace_status (void) |
00bf0b85 SS |
180 | { |
181 | return &trace_status; | |
182 | } | |
183 | ||
7a9dd1b2 | 184 | /* Free and clear the traceframe info cache of the current |
b3b9301e PA |
185 | traceframe. */ |
186 | ||
187 | static void | |
188 | clear_traceframe_info (void) | |
189 | { | |
8d3c73ef | 190 | current_traceframe_info = NULL; |
b3b9301e PA |
191 | } |
192 | ||
c906108c SS |
193 | /* Set traceframe number to NUM. */ |
194 | static void | |
fba45db2 | 195 | set_traceframe_num (int num) |
c906108c SS |
196 | { |
197 | traceframe_number = num; | |
4fa62494 | 198 | set_internalvar_integer (lookup_internalvar ("trace_frame"), num); |
c906108c SS |
199 | } |
200 | ||
201 | /* Set tracepoint number to NUM. */ | |
202 | static void | |
fba45db2 | 203 | set_tracepoint_num (int num) |
c906108c SS |
204 | { |
205 | tracepoint_number = num; | |
4fa62494 | 206 | set_internalvar_integer (lookup_internalvar ("tracepoint"), num); |
c906108c SS |
207 | } |
208 | ||
209 | /* Set externally visible debug variables for querying/printing | |
c378eb4e | 210 | the traceframe context (line, function, file). */ |
c906108c SS |
211 | |
212 | static void | |
fb14de7b | 213 | set_traceframe_context (struct frame_info *trace_frame) |
c906108c | 214 | { |
fb14de7b | 215 | CORE_ADDR trace_pc; |
24a00813 | 216 | struct symbol *traceframe_fun; |
51abb421 | 217 | symtab_and_line traceframe_sal; |
fb14de7b | 218 | |
dba09041 PA |
219 | /* Save as globals for internal use. */ |
220 | if (trace_frame != NULL | |
221 | && get_frame_pc_if_available (trace_frame, &trace_pc)) | |
222 | { | |
223 | traceframe_sal = find_pc_line (trace_pc, 0); | |
224 | traceframe_fun = find_pc_function (trace_pc); | |
225 | ||
226 | /* Save linenumber as "$trace_line", a debugger variable visible to | |
227 | users. */ | |
228 | set_internalvar_integer (lookup_internalvar ("trace_line"), | |
229 | traceframe_sal.line); | |
230 | } | |
231 | else | |
c906108c | 232 | { |
dba09041 | 233 | traceframe_fun = NULL; |
4fa62494 | 234 | set_internalvar_integer (lookup_internalvar ("trace_line"), -1); |
c906108c SS |
235 | } |
236 | ||
d183932d MS |
237 | /* Save func name as "$trace_func", a debugger variable visible to |
238 | users. */ | |
4fa62494 | 239 | if (traceframe_fun == NULL |
987012b8 | 240 | || traceframe_fun->linkage_name () == NULL) |
4fa62494 | 241 | clear_internalvar (lookup_internalvar ("trace_func")); |
c906108c | 242 | else |
78267919 | 243 | set_internalvar_string (lookup_internalvar ("trace_func"), |
987012b8 | 244 | traceframe_fun->linkage_name ()); |
c906108c | 245 | |
d183932d MS |
246 | /* Save file name as "$trace_file", a debugger variable visible to |
247 | users. */ | |
4e04028d | 248 | if (traceframe_sal.symtab == NULL) |
4fa62494 | 249 | clear_internalvar (lookup_internalvar ("trace_file")); |
c906108c | 250 | else |
78267919 | 251 | set_internalvar_string (lookup_internalvar ("trace_file"), |
05cba821 | 252 | symtab_to_filename_for_display (traceframe_sal.symtab)); |
c906108c SS |
253 | } |
254 | ||
f61e138d SS |
255 | /* Create a new trace state variable with the given name. */ |
256 | ||
257 | struct trace_state_variable * | |
258 | create_trace_state_variable (const char *name) | |
259 | { | |
c252925c SM |
260 | tvariables.emplace_back (name, next_tsv_number++); |
261 | return &tvariables.back (); | |
f61e138d SS |
262 | } |
263 | ||
264 | /* Look for a trace state variable of the given name. */ | |
265 | ||
266 | struct trace_state_variable * | |
267 | find_trace_state_variable (const char *name) | |
268 | { | |
c252925c SM |
269 | for (trace_state_variable &tsv : tvariables) |
270 | if (tsv.name == name) | |
271 | return &tsv; | |
f61e138d SS |
272 | |
273 | return NULL; | |
274 | } | |
275 | ||
dc673c81 YQ |
276 | /* Look for a trace state variable of the given number. Return NULL if |
277 | not found. */ | |
278 | ||
279 | struct trace_state_variable * | |
280 | find_trace_state_variable_by_number (int number) | |
281 | { | |
c252925c SM |
282 | for (trace_state_variable &tsv : tvariables) |
283 | if (tsv.number == number) | |
284 | return &tsv; | |
dc673c81 YQ |
285 | |
286 | return NULL; | |
287 | } | |
288 | ||
70221824 | 289 | static void |
f61e138d SS |
290 | delete_trace_state_variable (const char *name) |
291 | { | |
c252925c SM |
292 | for (auto it = tvariables.begin (); it != tvariables.end (); it++) |
293 | if (it->name == name) | |
f61e138d | 294 | { |
c252925c SM |
295 | gdb::observers::tsv_deleted.notify (&*it); |
296 | tvariables.erase (it); | |
f61e138d SS |
297 | return; |
298 | } | |
299 | ||
300 | warning (_("No trace variable named \"$%s\", not deleting"), name); | |
301 | } | |
302 | ||
1773c82c HAQ |
303 | /* Throws an error if NAME is not valid syntax for a trace state |
304 | variable's name. */ | |
305 | ||
306 | void | |
307 | validate_trace_state_variable_name (const char *name) | |
308 | { | |
309 | const char *p; | |
310 | ||
311 | if (*name == '\0') | |
312 | error (_("Must supply a non-empty variable name")); | |
313 | ||
314 | /* All digits in the name is reserved for value history | |
315 | references. */ | |
316 | for (p = name; isdigit (*p); p++) | |
317 | ; | |
318 | if (*p == '\0') | |
319 | error (_("$%s is not a valid trace state variable name"), name); | |
320 | ||
321 | for (p = name; isalnum (*p) || *p == '_'; p++) | |
322 | ; | |
323 | if (*p != '\0') | |
324 | error (_("$%s is not a valid trace state variable name"), name); | |
325 | } | |
326 | ||
f61e138d SS |
327 | /* The 'tvariable' command collects a name and optional expression to |
328 | evaluate into an initial value. */ | |
329 | ||
70221824 | 330 | static void |
0b39b52e | 331 | trace_variable_command (const char *args, int from_tty) |
f61e138d | 332 | { |
f61e138d SS |
333 | LONGEST initval = 0; |
334 | struct trace_state_variable *tsv; | |
0b39b52e | 335 | const char *name_start, *p; |
f61e138d SS |
336 | |
337 | if (!args || !*args) | |
1773c82c HAQ |
338 | error_no_arg (_("Syntax is $NAME [ = EXPR ]")); |
339 | ||
340 | /* Only allow two syntaxes; "$name" and "$name=value". */ | |
341 | p = skip_spaces (args); | |
f61e138d | 342 | |
1773c82c HAQ |
343 | if (*p++ != '$') |
344 | error (_("Name of trace variable should start with '$'")); | |
f61e138d | 345 | |
8abcee91 | 346 | name_start = p; |
1773c82c HAQ |
347 | while (isalnum (*p) || *p == '_') |
348 | p++; | |
8abcee91 | 349 | std::string name (name_start, p - name_start); |
f61e138d | 350 | |
1773c82c HAQ |
351 | p = skip_spaces (p); |
352 | if (*p != '=' && *p != '\0') | |
f61e138d SS |
353 | error (_("Syntax must be $NAME [ = EXPR ]")); |
354 | ||
8abcee91 | 355 | validate_trace_state_variable_name (name.c_str ()); |
f61e138d | 356 | |
1773c82c HAQ |
357 | if (*p == '=') |
358 | initval = value_as_long (parse_and_eval (++p)); | |
f61e138d SS |
359 | |
360 | /* If the variable already exists, just change its initial value. */ | |
8abcee91 | 361 | tsv = find_trace_state_variable (name.c_str ()); |
f61e138d SS |
362 | if (tsv) |
363 | { | |
134a2066 YQ |
364 | if (tsv->initial_value != initval) |
365 | { | |
366 | tsv->initial_value = initval; | |
76727919 | 367 | gdb::observers::tsv_modified.notify (tsv); |
134a2066 | 368 | } |
3e43a32a MS |
369 | printf_filtered (_("Trace state variable $%s " |
370 | "now has initial value %s.\n"), | |
c252925c | 371 | tsv->name.c_str (), plongest (tsv->initial_value)); |
f61e138d SS |
372 | return; |
373 | } | |
374 | ||
375 | /* Create a new variable. */ | |
8abcee91 | 376 | tsv = create_trace_state_variable (name.c_str ()); |
f61e138d SS |
377 | tsv->initial_value = initval; |
378 | ||
76727919 | 379 | gdb::observers::tsv_created.notify (tsv); |
bb25a15c | 380 | |
3e43a32a MS |
381 | printf_filtered (_("Trace state variable $%s " |
382 | "created, with initial value %s.\n"), | |
c252925c | 383 | tsv->name.c_str (), plongest (tsv->initial_value)); |
f61e138d SS |
384 | } |
385 | ||
70221824 | 386 | static void |
2983f7cb | 387 | delete_trace_variable_command (const char *args, int from_tty) |
f61e138d | 388 | { |
f61e138d SS |
389 | if (args == NULL) |
390 | { | |
391 | if (query (_("Delete all trace state variables? "))) | |
c252925c | 392 | tvariables.clear (); |
f61e138d | 393 | dont_repeat (); |
76727919 | 394 | gdb::observers::tsv_deleted.notify (NULL); |
f61e138d SS |
395 | return; |
396 | } | |
397 | ||
773a1edc | 398 | gdb_argv argv (args); |
f61e138d | 399 | |
773a1edc | 400 | for (char *arg : argv) |
f61e138d | 401 | { |
773a1edc TT |
402 | if (*arg == '$') |
403 | delete_trace_state_variable (arg + 1); | |
f61e138d | 404 | else |
773a1edc | 405 | warning (_("Name \"%s\" not prefixed with '$', ignoring"), arg); |
f61e138d SS |
406 | } |
407 | ||
f61e138d SS |
408 | dont_repeat (); |
409 | } | |
410 | ||
40e1c229 VP |
411 | void |
412 | tvariables_info_1 (void) | |
f61e138d | 413 | { |
79a45e25 | 414 | struct ui_out *uiout = current_uiout; |
f61e138d | 415 | |
35b1e5cc | 416 | /* Try to acquire values from the target. */ |
c252925c SM |
417 | for (trace_state_variable &tsv : tvariables) |
418 | tsv.value_known | |
419 | = target_get_trace_state_variable_value (tsv.number, &tsv.value); | |
35b1e5cc | 420 | |
f3c6abab TT |
421 | { |
422 | ui_out_emit_table table_emitter (uiout, 3, tvariables.size (), | |
423 | "trace-variables"); | |
424 | uiout->table_header (15, ui_left, "name", "Name"); | |
425 | uiout->table_header (11, ui_left, "initial", "Initial"); | |
426 | uiout->table_header (11, ui_left, "current", "Current"); | |
40e1c229 | 427 | |
f3c6abab | 428 | uiout->table_body (); |
f61e138d | 429 | |
f3c6abab TT |
430 | for (const trace_state_variable &tsv : tvariables) |
431 | { | |
432 | const char *c; | |
433 | ||
434 | ui_out_emit_tuple tuple_emitter (uiout, "variable"); | |
435 | ||
436 | uiout->field_string ("name", std::string ("$") + tsv.name); | |
437 | uiout->field_string ("initial", plongest (tsv.initial_value)); | |
438 | ||
7f6aba03 | 439 | ui_file_style style; |
f3c6abab TT |
440 | if (tsv.value_known) |
441 | c = plongest (tsv.value); | |
442 | else if (uiout->is_mi_like_p ()) | |
443 | /* For MI, we prefer not to use magic string constants, but rather | |
444 | omit the field completely. The difference between unknown and | |
445 | undefined does not seem important enough to represent. */ | |
446 | c = NULL; | |
447 | else if (current_trace_status ()->running || traceframe_number >= 0) | |
7f6aba03 TT |
448 | { |
449 | /* The value is/was defined, but we don't have it. */ | |
450 | c = "<unknown>"; | |
451 | style = metadata_style.style (); | |
452 | } | |
f3c6abab | 453 | else |
7f6aba03 TT |
454 | { |
455 | /* It is not meaningful to ask about the value. */ | |
456 | c = "<undefined>"; | |
457 | style = metadata_style.style (); | |
458 | } | |
f3c6abab | 459 | if (c) |
7f6aba03 | 460 | uiout->field_string ("current", c, style); |
f3c6abab TT |
461 | uiout->text ("\n"); |
462 | } | |
463 | } | |
464 | ||
465 | if (tvariables.empty ()) | |
466 | uiout->text (_("No trace state variables.\n")); | |
40e1c229 VP |
467 | } |
468 | ||
469 | /* List all the trace state variables. */ | |
470 | ||
471 | static void | |
1d12d88f | 472 | info_tvariables_command (const char *args, int from_tty) |
40e1c229 VP |
473 | { |
474 | tvariables_info_1 (); | |
f61e138d SS |
475 | } |
476 | ||
8bf6485c SS |
477 | /* Stash definitions of tsvs into the given file. */ |
478 | ||
479 | void | |
480 | save_trace_state_variables (struct ui_file *fp) | |
481 | { | |
c252925c | 482 | for (const trace_state_variable &tsv : tvariables) |
8bf6485c | 483 | { |
c252925c SM |
484 | fprintf_unfiltered (fp, "tvariable $%s", tsv.name.c_str ()); |
485 | if (tsv.initial_value) | |
486 | fprintf_unfiltered (fp, " = %s", plongest (tsv.initial_value)); | |
8bf6485c SS |
487 | fprintf_unfiltered (fp, "\n"); |
488 | } | |
489 | } | |
490 | ||
c906108c SS |
491 | /* ACTIONS functions: */ |
492 | ||
c906108c | 493 | /* The three functions: |
c5aa993b JM |
494 | collect_pseudocommand, |
495 | while_stepping_pseudocommand, and | |
496 | end_actions_pseudocommand | |
c906108c SS |
497 | are placeholders for "commands" that are actually ONLY to be used |
498 | within a tracepoint action list. If the actual function is ever called, | |
499 | it means that somebody issued the "command" at the top level, | |
500 | which is always an error. */ | |
501 | ||
7b3ae3a6 | 502 | static void |
0b39b52e | 503 | end_actions_pseudocommand (const char *args, int from_tty) |
c906108c | 504 | { |
8a3fe4f8 | 505 | error (_("This command cannot be used at the top level.")); |
c906108c SS |
506 | } |
507 | ||
7b3ae3a6 | 508 | static void |
0b39b52e | 509 | while_stepping_pseudocommand (const char *args, int from_tty) |
c906108c | 510 | { |
8a3fe4f8 | 511 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
512 | } |
513 | ||
514 | static void | |
0b39b52e | 515 | collect_pseudocommand (const char *args, int from_tty) |
c906108c | 516 | { |
8a3fe4f8 | 517 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
518 | } |
519 | ||
6da95a67 | 520 | static void |
0b39b52e | 521 | teval_pseudocommand (const char *args, int from_tty) |
6da95a67 SS |
522 | { |
523 | error (_("This command can only be used in a tracepoint actions list.")); | |
524 | } | |
525 | ||
3065dfb6 SS |
526 | /* Parse any collection options, such as /s for strings. */ |
527 | ||
6f937416 | 528 | const char * |
92bc6a20 | 529 | decode_agent_options (const char *exp, int *trace_string) |
3065dfb6 SS |
530 | { |
531 | struct value_print_options opts; | |
532 | ||
92bc6a20 TT |
533 | *trace_string = 0; |
534 | ||
3065dfb6 SS |
535 | if (*exp != '/') |
536 | return exp; | |
537 | ||
538 | /* Call this to borrow the print elements default for collection | |
539 | size. */ | |
540 | get_user_print_options (&opts); | |
541 | ||
542 | exp++; | |
543 | if (*exp == 's') | |
544 | { | |
545 | if (target_supports_string_tracing ()) | |
546 | { | |
547 | /* Allow an optional decimal number giving an explicit maximum | |
548 | string length, defaulting it to the "print elements" value; | |
549 | so "collect/s80 mystr" gets at most 80 bytes of string. */ | |
92bc6a20 | 550 | *trace_string = opts.print_max; |
3065dfb6 SS |
551 | exp++; |
552 | if (*exp >= '0' && *exp <= '9') | |
92bc6a20 | 553 | *trace_string = atoi (exp); |
3065dfb6 SS |
554 | while (*exp >= '0' && *exp <= '9') |
555 | exp++; | |
556 | } | |
557 | else | |
558 | error (_("Target does not support \"/s\" option for string tracing.")); | |
559 | } | |
560 | else | |
561 | error (_("Undefined collection format \"%c\"."), *exp); | |
562 | ||
f1735a53 | 563 | exp = skip_spaces (exp); |
3065dfb6 SS |
564 | |
565 | return exp; | |
566 | } | |
567 | ||
c906108c SS |
568 | /* Enter a list of actions for a tracepoint. */ |
569 | static void | |
0b39b52e | 570 | actions_command (const char *args, int from_tty) |
c906108c | 571 | { |
d9b3f62e | 572 | struct tracepoint *t; |
c906108c | 573 | |
5fa1d40e | 574 | t = get_tracepoint_by_number (&args, NULL); |
7a292a7a | 575 | if (t) |
c906108c | 576 | { |
93921405 TT |
577 | std::string tmpbuf = |
578 | string_printf ("Enter actions for tracepoint %d, one per line.", | |
c1fc2657 | 579 | t->number); |
93921405 | 580 | |
295dc222 TT |
581 | counted_command_line l = read_command_lines (tmpbuf.c_str (), |
582 | from_tty, 1, | |
60b3cef2 TT |
583 | [=] (const char *line) |
584 | { | |
585 | validate_actionline (line, t); | |
586 | }); | |
c1fc2657 | 587 | breakpoint_set_commands (t, std::move (l)); |
c906108c | 588 | } |
5c44784c | 589 | /* else just return */ |
c906108c SS |
590 | } |
591 | ||
fff87407 SS |
592 | /* Report the results of checking the agent expression, as errors or |
593 | internal errors. */ | |
594 | ||
595 | static void | |
35c9c7ba | 596 | report_agent_reqs_errors (struct agent_expr *aexpr) |
fff87407 SS |
597 | { |
598 | /* All of the "flaws" are serious bytecode generation issues that | |
599 | should never occur. */ | |
35c9c7ba | 600 | if (aexpr->flaw != agent_flaw_none) |
fff87407 SS |
601 | internal_error (__FILE__, __LINE__, _("expression is malformed")); |
602 | ||
603 | /* If analysis shows a stack underflow, GDB must have done something | |
604 | badly wrong in its bytecode generation. */ | |
35c9c7ba | 605 | if (aexpr->min_height < 0) |
fff87407 SS |
606 | internal_error (__FILE__, __LINE__, |
607 | _("expression has min height < 0")); | |
608 | ||
609 | /* Issue this error if the stack is predicted to get too deep. The | |
610 | limit is rather arbitrary; a better scheme might be for the | |
611 | target to report how much stack it will have available. The | |
612 | depth roughly corresponds to parenthesization, so a limit of 20 | |
613 | amounts to 20 levels of expression nesting, which is actually | |
614 | a pretty big hairy expression. */ | |
35c9c7ba | 615 | if (aexpr->max_height > 20) |
fff87407 SS |
616 | error (_("Expression is too complicated.")); |
617 | } | |
618 | ||
4277c4b8 PFC |
619 | /* Call ax_reqs on AEXPR and raise an error if something is wrong. */ |
620 | ||
621 | static void | |
622 | finalize_tracepoint_aexpr (struct agent_expr *aexpr) | |
623 | { | |
624 | ax_reqs (aexpr); | |
625 | ||
626 | if (aexpr->len > MAX_AGENT_EXPR_LEN) | |
627 | error (_("Expression is too complicated.")); | |
628 | ||
629 | report_agent_reqs_errors (aexpr); | |
630 | } | |
631 | ||
c906108c | 632 | /* worker function */ |
fff87407 | 633 | void |
6f937416 | 634 | validate_actionline (const char *line, struct breakpoint *b) |
c906108c SS |
635 | { |
636 | struct cmd_list_element *c; | |
6f937416 PA |
637 | const char *tmp_p; |
638 | const char *p; | |
9355b391 | 639 | struct bp_location *loc; |
d9b3f62e | 640 | struct tracepoint *t = (struct tracepoint *) b; |
c906108c | 641 | |
c378eb4e | 642 | /* If EOF is typed, *line is NULL. */ |
6f937416 | 643 | if (line == NULL) |
fff87407 | 644 | return; |
15255275 | 645 | |
f1735a53 | 646 | p = skip_spaces (line); |
c906108c | 647 | |
d183932d MS |
648 | /* Symbol lookup etc. */ |
649 | if (*p == '\0') /* empty line: just prompt for another line. */ | |
fff87407 | 650 | return; |
c906108c | 651 | |
c5aa993b | 652 | if (*p == '#') /* comment line */ |
fff87407 | 653 | return; |
c906108c | 654 | |
cf00cd6f | 655 | c = lookup_cmd (&p, cmdlist, "", NULL, -1, 1); |
c906108c | 656 | if (c == 0) |
fff87407 | 657 | error (_("`%s' is not a tracepoint action, or is ambiguous."), p); |
c5aa993b | 658 | |
bbaca940 | 659 | if (cmd_cfunc_eq (c, collect_pseudocommand)) |
c906108c | 660 | { |
92bc6a20 TT |
661 | int trace_string = 0; |
662 | ||
3065dfb6 | 663 | if (*p == '/') |
92bc6a20 | 664 | p = decode_agent_options (p, &trace_string); |
3065dfb6 | 665 | |
c5aa993b | 666 | do |
c378eb4e MS |
667 | { /* Repeat over a comma-separated list. */ |
668 | QUIT; /* Allow user to bail out with ^C. */ | |
f1735a53 | 669 | p = skip_spaces (p); |
c906108c | 670 | |
c378eb4e | 671 | if (*p == '$') /* Look for special pseudo-symbols. */ |
c5aa993b | 672 | { |
0fb4aa4b PA |
673 | if (0 == strncasecmp ("reg", p + 1, 3) |
674 | || 0 == strncasecmp ("arg", p + 1, 3) | |
675 | || 0 == strncasecmp ("loc", p + 1, 3) | |
6710bf39 | 676 | || 0 == strncasecmp ("_ret", p + 1, 4) |
0fb4aa4b | 677 | || 0 == strncasecmp ("_sdata", p + 1, 6)) |
c5aa993b JM |
678 | { |
679 | p = strchr (p, ','); | |
680 | continue; | |
681 | } | |
d183932d | 682 | /* else fall thru, treat p as an expression and parse it! */ |
c5aa993b | 683 | } |
9355b391 | 684 | tmp_p = p; |
c1fc2657 | 685 | for (loc = t->loc; loc; loc = loc->next) |
c5aa993b | 686 | { |
6f937416 | 687 | p = tmp_p; |
4d01a485 PA |
688 | expression_up exp = parse_exp_1 (&p, loc->address, |
689 | block_for_pc (loc->address), 1); | |
9355b391 | 690 | |
2adab65c | 691 | if (exp->first_opcode () == OP_VAR_VALUE) |
c5aa993b | 692 | { |
413403fc | 693 | symbol *sym; |
1eaebe02 TT |
694 | expr::var_value_operation *vvop |
695 | = (dynamic_cast<expr::var_value_operation *> | |
696 | (exp->op.get ())); | |
697 | sym = vvop->get_symbol (); | |
413403fc TT |
698 | |
699 | if (SYMBOL_CLASS (sym) == LOC_CONST) | |
9355b391 | 700 | { |
12df843f | 701 | error (_("constant `%s' (value %s) " |
3e43a32a | 702 | "will not be collected."), |
413403fc TT |
703 | sym->print_name (), |
704 | plongest (SYMBOL_VALUE (sym))); | |
9355b391 | 705 | } |
413403fc | 706 | else if (SYMBOL_CLASS (sym) == LOC_OPTIMIZED_OUT) |
9355b391 | 707 | { |
3e43a32a MS |
708 | error (_("`%s' is optimized away " |
709 | "and cannot be collected."), | |
413403fc | 710 | sym->print_name ()); |
9355b391 | 711 | } |
c5aa993b | 712 | } |
c906108c | 713 | |
9355b391 SS |
714 | /* We have something to collect, make sure that the expr to |
715 | bytecode translator can handle it and that it's not too | |
716 | long. */ | |
833177a4 PA |
717 | agent_expr_up aexpr = gen_trace_for_expr (loc->address, |
718 | exp.get (), | |
719 | trace_string); | |
c906108c | 720 | |
4277c4b8 | 721 | finalize_tracepoint_aexpr (aexpr.get ()); |
9355b391 | 722 | } |
c5aa993b JM |
723 | } |
724 | while (p && *p++ == ','); | |
c906108c | 725 | } |
fff87407 | 726 | |
6da95a67 SS |
727 | else if (cmd_cfunc_eq (c, teval_pseudocommand)) |
728 | { | |
6da95a67 | 729 | do |
c378eb4e MS |
730 | { /* Repeat over a comma-separated list. */ |
731 | QUIT; /* Allow user to bail out with ^C. */ | |
f1735a53 | 732 | p = skip_spaces (p); |
6da95a67 | 733 | |
9355b391 | 734 | tmp_p = p; |
c1fc2657 | 735 | for (loc = t->loc; loc; loc = loc->next) |
9355b391 | 736 | { |
6f937416 | 737 | p = tmp_p; |
bbc13ae3 | 738 | |
9355b391 | 739 | /* Only expressions are allowed for this action. */ |
4d01a485 PA |
740 | expression_up exp = parse_exp_1 (&p, loc->address, |
741 | block_for_pc (loc->address), 1); | |
6da95a67 | 742 | |
9355b391 SS |
743 | /* We have something to evaluate, make sure that the expr to |
744 | bytecode translator can handle it and that it's not too | |
745 | long. */ | |
833177a4 | 746 | agent_expr_up aexpr = gen_eval_for_expr (loc->address, exp.get ()); |
6da95a67 | 747 | |
4277c4b8 | 748 | finalize_tracepoint_aexpr (aexpr.get ()); |
9355b391 | 749 | } |
6da95a67 SS |
750 | } |
751 | while (p && *p++ == ','); | |
6da95a67 | 752 | } |
fff87407 | 753 | |
bbaca940 | 754 | else if (cmd_cfunc_eq (c, while_stepping_pseudocommand)) |
c906108c | 755 | { |
6f937416 | 756 | char *endp; |
c906108c | 757 | |
f1735a53 | 758 | p = skip_spaces (p); |
6f937416 PA |
759 | t->step_count = strtol (p, &endp, 0); |
760 | if (endp == p || t->step_count == 0) | |
761 | error (_("while-stepping step count `%s' is malformed."), line); | |
762 | p = endp; | |
c906108c | 763 | } |
fff87407 | 764 | |
bbaca940 | 765 | else if (cmd_cfunc_eq (c, end_actions_pseudocommand)) |
fff87407 SS |
766 | ; |
767 | ||
c906108c | 768 | else |
6f937416 | 769 | error (_("`%s' is not a supported tracepoint action."), line); |
74b7792f AC |
770 | } |
771 | ||
f50e79a4 JB |
772 | enum { |
773 | memrange_absolute = -1 | |
774 | }; | |
775 | ||
c906108c SS |
776 | /* MEMRANGE functions: */ |
777 | ||
1f45808e | 778 | /* Compare memranges for std::sort. */ |
c906108c | 779 | |
1f45808e PA |
780 | static bool |
781 | memrange_comp (const memrange &a, const memrange &b) | |
c906108c | 782 | { |
1f45808e | 783 | if (a.type == b.type) |
c906108c | 784 | { |
1f45808e PA |
785 | if (a.type == memrange_absolute) |
786 | return (bfd_vma) a.start < (bfd_vma) b.start; | |
787 | else | |
788 | return a.start < b.start; | |
c906108c | 789 | } |
1f45808e PA |
790 | |
791 | return a.type < b.type; | |
c906108c SS |
792 | } |
793 | ||
1f45808e PA |
794 | /* Sort the memrange list using std::sort, and merge adjacent memranges. */ |
795 | ||
c906108c | 796 | static void |
1f45808e | 797 | memrange_sortmerge (std::vector<memrange> &memranges) |
c906108c | 798 | { |
1f45808e | 799 | if (!memranges.empty ()) |
c906108c | 800 | { |
1f45808e PA |
801 | int a, b; |
802 | ||
803 | std::sort (memranges.begin (), memranges.end (), memrange_comp); | |
804 | ||
805 | for (a = 0, b = 1; b < memranges.size (); b++) | |
c906108c | 806 | { |
1b28d0b3 PA |
807 | /* If memrange b overlaps or is adjacent to memrange a, |
808 | merge them. */ | |
1f45808e PA |
809 | if (memranges[a].type == memranges[b].type |
810 | && memranges[b].start <= memranges[a].end) | |
c906108c | 811 | { |
1f45808e PA |
812 | if (memranges[b].end > memranges[a].end) |
813 | memranges[a].end = memranges[b].end; | |
c906108c SS |
814 | continue; /* next b, same a */ |
815 | } | |
816 | a++; /* next a */ | |
817 | if (a != b) | |
1f45808e | 818 | memranges[a] = memranges[b]; |
c906108c | 819 | } |
1f45808e | 820 | memranges.resize (a + 1); |
c906108c SS |
821 | } |
822 | } | |
823 | ||
4277c4b8 | 824 | /* Add remote register number REGNO to the collection list mask. */ |
1f45808e PA |
825 | |
826 | void | |
4277c4b8 | 827 | collection_list::add_remote_register (unsigned int regno) |
c906108c SS |
828 | { |
829 | if (info_verbose) | |
830 | printf_filtered ("collect register %d\n", regno); | |
a04b9d62 PFC |
831 | |
832 | m_regs_mask.at (regno / 8) |= 1 << (regno % 8); | |
c906108c SS |
833 | } |
834 | ||
4277c4b8 PFC |
835 | /* Add all the registers from the mask in AEXPR to the mask in the |
836 | collection list. Registers in the AEXPR mask are already remote | |
837 | register numbers. */ | |
838 | ||
839 | void | |
840 | collection_list::add_ax_registers (struct agent_expr *aexpr) | |
841 | { | |
842 | if (aexpr->reg_mask_len > 0) | |
843 | { | |
844 | for (int ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++) | |
845 | { | |
846 | QUIT; /* Allow user to bail out with ^C. */ | |
847 | if (aexpr->reg_mask[ndx1] != 0) | |
848 | { | |
849 | /* Assume chars have 8 bits. */ | |
850 | for (int ndx2 = 0; ndx2 < 8; ndx2++) | |
851 | if (aexpr->reg_mask[ndx1] & (1 << ndx2)) | |
852 | /* It's used -- record it. */ | |
853 | add_remote_register (ndx1 * 8 + ndx2); | |
854 | } | |
855 | } | |
856 | } | |
857 | } | |
858 | ||
859 | /* If REGNO is raw, add its corresponding remote register number to | |
860 | the mask. If REGNO is a pseudo-register, figure out the necessary | |
861 | registers using a temporary agent expression, and add it to the | |
862 | list if it needs more than just a mask. */ | |
863 | ||
864 | void | |
865 | collection_list::add_local_register (struct gdbarch *gdbarch, | |
866 | unsigned int regno, | |
867 | CORE_ADDR scope) | |
868 | { | |
869 | if (regno < gdbarch_num_regs (gdbarch)) | |
870 | { | |
871 | int remote_regno = gdbarch_remote_register_number (gdbarch, regno); | |
872 | ||
873 | if (remote_regno < 0) | |
874 | error (_("Can't collect register %d"), regno); | |
875 | ||
876 | add_remote_register (remote_regno); | |
877 | } | |
878 | else | |
879 | { | |
880 | agent_expr_up aexpr (new agent_expr (gdbarch, scope)); | |
881 | ||
882 | ax_reg_mask (aexpr.get (), regno); | |
883 | ||
884 | finalize_tracepoint_aexpr (aexpr.get ()); | |
885 | ||
886 | add_ax_registers (aexpr.get ()); | |
887 | ||
888 | /* Usually ax_reg_mask for a pseudo-regiser only sets the | |
889 | corresponding raw registers in the ax mask, but if this isn't | |
890 | the case add the expression that is generated to the | |
891 | collection list. */ | |
892 | if (aexpr->len > 0) | |
893 | add_aexpr (std::move (aexpr)); | |
894 | } | |
895 | } | |
896 | ||
c378eb4e | 897 | /* Add a memrange to a collection list. */ |
1f45808e PA |
898 | |
899 | void | |
19f1935d PA |
900 | collection_list::add_memrange (struct gdbarch *gdbarch, |
901 | int type, bfd_signed_vma base, | |
4277c4b8 | 902 | unsigned long len, CORE_ADDR scope) |
c906108c SS |
903 | { |
904 | if (info_verbose) | |
19f1935d | 905 | printf_filtered ("(%d,%s,%ld)\n", type, paddress (gdbarch, base), len); |
104c1213 | 906 | |
f50e79a4 | 907 | /* type: memrange_absolute == memory, other n == basereg */ |
d183932d | 908 | /* base: addr if memory, offset if reg relative. */ |
c906108c | 909 | /* len: we actually save end (base + len) for convenience */ |
7a63494a | 910 | m_memranges.emplace_back (type, base, base + len); |
c906108c | 911 | |
3e43a32a | 912 | if (type != memrange_absolute) /* Better collect the base register! */ |
4277c4b8 | 913 | add_local_register (gdbarch, type, scope); |
c906108c SS |
914 | } |
915 | ||
d183932d | 916 | /* Add a symbol to a collection list. */ |
1f45808e PA |
917 | |
918 | void | |
919 | collection_list::collect_symbol (struct symbol *sym, | |
920 | struct gdbarch *gdbarch, | |
921 | long frame_regno, long frame_offset, | |
922 | CORE_ADDR scope, | |
923 | int trace_string) | |
c906108c | 924 | { |
c5aa993b | 925 | unsigned long len; |
104c1213 | 926 | unsigned int reg; |
c906108c | 927 | bfd_signed_vma offset; |
400c6af0 | 928 | int treat_as_expr = 0; |
c906108c | 929 | |
c5aa993b JM |
930 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
931 | switch (SYMBOL_CLASS (sym)) | |
932 | { | |
933 | default: | |
934 | printf_filtered ("%s: don't know symbol class %d\n", | |
987012b8 | 935 | sym->print_name (), SYMBOL_CLASS (sym)); |
c5aa993b JM |
936 | break; |
937 | case LOC_CONST: | |
12df843f | 938 | printf_filtered ("constant %s (value %s) will not be collected.\n", |
987012b8 | 939 | sym->print_name (), plongest (SYMBOL_VALUE (sym))); |
c5aa993b JM |
940 | break; |
941 | case LOC_STATIC: | |
942 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
943 | if (info_verbose) | |
104c1213 | 944 | { |
104c1213 | 945 | printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", |
987012b8 | 946 | sym->print_name (), len, |
19f1935d | 947 | paddress (gdbarch, offset)); |
104c1213 | 948 | } |
400c6af0 SS |
949 | /* A struct may be a C++ class with static fields, go to general |
950 | expression handling. */ | |
78134374 | 951 | if (SYMBOL_TYPE (sym)->code () == TYPE_CODE_STRUCT) |
400c6af0 SS |
952 | treat_as_expr = 1; |
953 | else | |
4277c4b8 | 954 | add_memrange (gdbarch, memrange_absolute, offset, len, scope); |
c5aa993b JM |
955 | break; |
956 | case LOC_REGISTER: | |
a6d9a66e | 957 | reg = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); |
c5aa993b | 958 | if (info_verbose) |
987012b8 | 959 | printf_filtered ("LOC_REG[parm] %s: ", sym->print_name ()); |
4277c4b8 | 960 | add_local_register (gdbarch, reg, scope); |
d183932d MS |
961 | /* Check for doubles stored in two registers. */ |
962 | /* FIXME: how about larger types stored in 3 or more regs? */ | |
78134374 | 963 | if (SYMBOL_TYPE (sym)->code () == TYPE_CODE_FLT && |
a6d9a66e | 964 | len > register_size (gdbarch, reg)) |
4277c4b8 | 965 | add_local_register (gdbarch, reg + 1, scope); |
c5aa993b JM |
966 | break; |
967 | case LOC_REF_ARG: | |
968 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); | |
987012b8 | 969 | printf_filtered (" (will not collect %s)\n", sym->print_name ()); |
c5aa993b JM |
970 | break; |
971 | case LOC_ARG: | |
972 | reg = frame_regno; | |
973 | offset = frame_offset + SYMBOL_VALUE (sym); | |
974 | if (info_verbose) | |
975 | { | |
19f1935d | 976 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset %s" |
987012b8 | 977 | " from frame ptr reg %d\n", sym->print_name (), len, |
19f1935d | 978 | paddress (gdbarch, offset), reg); |
c5aa993b | 979 | } |
4277c4b8 | 980 | add_memrange (gdbarch, reg, offset, len, scope); |
c5aa993b JM |
981 | break; |
982 | case LOC_REGPARM_ADDR: | |
983 | reg = SYMBOL_VALUE (sym); | |
984 | offset = 0; | |
985 | if (info_verbose) | |
986 | { | |
19f1935d | 987 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset %s" |
987012b8 | 988 | " from reg %d\n", sym->print_name (), len, |
19f1935d | 989 | paddress (gdbarch, offset), reg); |
c5aa993b | 990 | } |
4277c4b8 | 991 | add_memrange (gdbarch, reg, offset, len, scope); |
c5aa993b JM |
992 | break; |
993 | case LOC_LOCAL: | |
c5aa993b JM |
994 | reg = frame_regno; |
995 | offset = frame_offset + SYMBOL_VALUE (sym); | |
996 | if (info_verbose) | |
997 | { | |
19f1935d | 998 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset %s" |
987012b8 | 999 | " from frame ptr reg %d\n", sym->print_name (), len, |
19f1935d | 1000 | paddress (gdbarch, offset), reg); |
c5aa993b | 1001 | } |
4277c4b8 | 1002 | add_memrange (gdbarch, reg, offset, len, scope); |
c5aa993b | 1003 | break; |
a0405854 | 1004 | |
c5aa993b | 1005 | case LOC_UNRESOLVED: |
a0405854 | 1006 | treat_as_expr = 1; |
c5aa993b | 1007 | break; |
a0405854 | 1008 | |
c5aa993b | 1009 | case LOC_OPTIMIZED_OUT: |
8e1a459b | 1010 | printf_filtered ("%s has been optimized out of existence.\n", |
987012b8 | 1011 | sym->print_name ()); |
c5aa993b | 1012 | break; |
0936ad1d SS |
1013 | |
1014 | case LOC_COMPUTED: | |
400c6af0 | 1015 | treat_as_expr = 1; |
0936ad1d | 1016 | break; |
c5aa993b | 1017 | } |
400c6af0 SS |
1018 | |
1019 | /* Expressions are the most general case. */ | |
1020 | if (treat_as_expr) | |
1021 | { | |
833177a4 PA |
1022 | agent_expr_up aexpr = gen_trace_for_var (scope, gdbarch, |
1023 | sym, trace_string); | |
400c6af0 SS |
1024 | |
1025 | /* It can happen that the symbol is recorded as a computed | |
1026 | location, but it's been optimized away and doesn't actually | |
1027 | have a location expression. */ | |
1028 | if (!aexpr) | |
1029 | { | |
1030 | printf_filtered ("%s has been optimized out of existence.\n", | |
987012b8 | 1031 | sym->print_name ()); |
400c6af0 SS |
1032 | return; |
1033 | } | |
1034 | ||
4277c4b8 | 1035 | finalize_tracepoint_aexpr (aexpr.get ()); |
400c6af0 | 1036 | |
c378eb4e | 1037 | /* Take care of the registers. */ |
4277c4b8 | 1038 | add_ax_registers (aexpr.get ()); |
833177a4 | 1039 | |
6c73cd95 | 1040 | add_aexpr (std::move (aexpr)); |
400c6af0 | 1041 | } |
c906108c SS |
1042 | } |
1043 | ||
2c58c0a9 PA |
1044 | /* Data to be passed around in the calls to the locals and args |
1045 | iterators. */ | |
1046 | ||
1047 | struct add_local_symbols_data | |
1048 | { | |
1049 | struct collection_list *collect; | |
1050 | struct gdbarch *gdbarch; | |
1051 | CORE_ADDR pc; | |
1052 | long frame_regno; | |
1053 | long frame_offset; | |
1054 | int count; | |
92bc6a20 | 1055 | int trace_string; |
2c58c0a9 PA |
1056 | }; |
1057 | ||
c378eb4e | 1058 | /* The callback for the locals and args iterators. */ |
2c58c0a9 PA |
1059 | |
1060 | static void | |
1061 | do_collect_symbol (const char *print_name, | |
1062 | struct symbol *sym, | |
1063 | void *cb_data) | |
1064 | { | |
19ba03f4 | 1065 | struct add_local_symbols_data *p = (struct add_local_symbols_data *) cb_data; |
2c58c0a9 | 1066 | |
1f45808e PA |
1067 | p->collect->collect_symbol (sym, p->gdbarch, p->frame_regno, |
1068 | p->frame_offset, p->pc, p->trace_string); | |
2c58c0a9 | 1069 | p->count++; |
dc673c81 | 1070 | |
1f45808e PA |
1071 | p->collect->add_wholly_collected (print_name); |
1072 | } | |
1073 | ||
1074 | void | |
1075 | collection_list::add_wholly_collected (const char *print_name) | |
1076 | { | |
1077 | m_wholly_collected.push_back (print_name); | |
2c58c0a9 PA |
1078 | } |
1079 | ||
c378eb4e | 1080 | /* Add all locals (or args) symbols to collection list. */ |
1f45808e PA |
1081 | |
1082 | void | |
1083 | collection_list::add_local_symbols (struct gdbarch *gdbarch, CORE_ADDR pc, | |
1084 | long frame_regno, long frame_offset, int type, | |
1085 | int trace_string) | |
c906108c | 1086 | { |
3977b71f | 1087 | const struct block *block; |
2c58c0a9 PA |
1088 | struct add_local_symbols_data cb_data; |
1089 | ||
1f45808e | 1090 | cb_data.collect = this; |
2c58c0a9 PA |
1091 | cb_data.gdbarch = gdbarch; |
1092 | cb_data.pc = pc; | |
1093 | cb_data.frame_regno = frame_regno; | |
1094 | cb_data.frame_offset = frame_offset; | |
1095 | cb_data.count = 0; | |
92bc6a20 | 1096 | cb_data.trace_string = trace_string; |
c906108c | 1097 | |
2c58c0a9 | 1098 | if (type == 'L') |
c906108c | 1099 | { |
2c58c0a9 PA |
1100 | block = block_for_pc (pc); |
1101 | if (block == NULL) | |
c906108c | 1102 | { |
2c58c0a9 PA |
1103 | warning (_("Can't collect locals; " |
1104 | "no symbol table info available.\n")); | |
1105 | return; | |
c906108c | 1106 | } |
2c58c0a9 PA |
1107 | |
1108 | iterate_over_block_local_vars (block, do_collect_symbol, &cb_data); | |
1109 | if (cb_data.count == 0) | |
1110 | warning (_("No locals found in scope.")); | |
1111 | } | |
1112 | else | |
1113 | { | |
1114 | pc = get_pc_function_start (pc); | |
1115 | block = block_for_pc (pc); | |
1116 | if (block == NULL) | |
1117 | { | |
b37520b6 | 1118 | warning (_("Can't collect args; no symbol table info available.")); |
2c58c0a9 PA |
1119 | return; |
1120 | } | |
1121 | ||
1122 | iterate_over_block_arg_vars (block, do_collect_symbol, &cb_data); | |
1123 | if (cb_data.count == 0) | |
1124 | warning (_("No args found in scope.")); | |
c906108c | 1125 | } |
c906108c SS |
1126 | } |
1127 | ||
1f45808e PA |
1128 | void |
1129 | collection_list::add_static_trace_data () | |
0fb4aa4b PA |
1130 | { |
1131 | if (info_verbose) | |
1132 | printf_filtered ("collect static trace data\n"); | |
1f45808e | 1133 | m_strace_data = true; |
cbfa3b61 YQ |
1134 | } |
1135 | ||
1f45808e | 1136 | collection_list::collection_list () |
a04b9d62 | 1137 | : m_strace_data (false) |
cbfa3b61 | 1138 | { |
a04b9d62 PFC |
1139 | int max_remote_regno = 0; |
1140 | for (int i = 0; i < gdbarch_num_regs (target_gdbarch ()); i++) | |
1141 | { | |
1142 | int remote_regno = (gdbarch_remote_register_number | |
1143 | (target_gdbarch (), i)); | |
1144 | ||
1145 | if (remote_regno >= 0 && remote_regno > max_remote_regno) | |
1146 | max_remote_regno = remote_regno; | |
1147 | } | |
1148 | ||
1149 | m_regs_mask.resize ((max_remote_regno / 8) + 1); | |
1150 | ||
1f45808e PA |
1151 | m_memranges.reserve (128); |
1152 | m_aexprs.reserve (128); | |
cbfa3b61 YQ |
1153 | } |
1154 | ||
c378eb4e | 1155 | /* Reduce a collection list to string form (for gdb protocol). */ |
1f45808e | 1156 | |
b44ec619 | 1157 | std::vector<std::string> |
1f45808e | 1158 | collection_list::stringify () |
c906108c | 1159 | { |
a04b9d62 PFC |
1160 | gdb::char_vector temp_buf (2048); |
1161 | ||
c906108c | 1162 | int count; |
c906108c | 1163 | char *end; |
c5aa993b | 1164 | long i; |
b44ec619 | 1165 | std::vector<std::string> str_list; |
c906108c | 1166 | |
1f45808e | 1167 | if (m_strace_data) |
0fb4aa4b PA |
1168 | { |
1169 | if (info_verbose) | |
1170 | printf_filtered ("\nCollecting static trace data\n"); | |
a04b9d62 | 1171 | end = temp_buf.data (); |
0fb4aa4b | 1172 | *end++ = 'L'; |
a04b9d62 | 1173 | str_list.emplace_back (temp_buf.data (), end - temp_buf.data ()); |
0fb4aa4b PA |
1174 | } |
1175 | ||
a04b9d62 | 1176 | for (i = m_regs_mask.size () - 1; i > 0; i--) |
1f45808e | 1177 | if (m_regs_mask[i] != 0) /* Skip leading zeroes in regs_mask. */ |
c906108c | 1178 | break; |
1f45808e | 1179 | if (m_regs_mask[i] != 0) /* Prepare to send regs_mask to the stub. */ |
c906108c SS |
1180 | { |
1181 | if (info_verbose) | |
1182 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
a04b9d62 PFC |
1183 | |
1184 | /* One char for 'R', one for the null terminator and two per | |
1185 | mask byte. */ | |
1186 | std::size_t new_size = (i + 1) * 2 + 2; | |
1187 | if (new_size > temp_buf.size ()) | |
1188 | temp_buf.resize (new_size); | |
1189 | ||
1190 | end = temp_buf.data (); | |
c5aa993b | 1191 | *end++ = 'R'; |
c906108c SS |
1192 | for (; i >= 0; i--) |
1193 | { | |
c378eb4e | 1194 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c | 1195 | if (info_verbose) |
1f45808e | 1196 | printf_filtered ("%02X", m_regs_mask[i]); |
a04b9d62 PFC |
1197 | |
1198 | end = pack_hex_byte (end, m_regs_mask[i]); | |
c906108c | 1199 | } |
a04b9d62 PFC |
1200 | *end = '\0'; |
1201 | ||
1202 | str_list.emplace_back (temp_buf.data ()); | |
c906108c SS |
1203 | } |
1204 | if (info_verbose) | |
1205 | printf_filtered ("\n"); | |
1f45808e | 1206 | if (!m_memranges.empty () && info_verbose) |
c906108c | 1207 | printf_filtered ("Collecting memranges: \n"); |
a04b9d62 PFC |
1208 | for (i = 0, count = 0, end = temp_buf.data (); |
1209 | i < m_memranges.size (); i++) | |
c906108c | 1210 | { |
c378eb4e | 1211 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c | 1212 | if (info_verbose) |
104c1213 JM |
1213 | { |
1214 | printf_filtered ("(%d, %s, %ld)\n", | |
1f45808e | 1215 | m_memranges[i].type, |
19f1935d PA |
1216 | paddress (target_gdbarch (), |
1217 | m_memranges[i].start), | |
1f45808e PA |
1218 | (long) (m_memranges[i].end |
1219 | - m_memranges[i].start)); | |
104c1213 | 1220 | } |
c906108c SS |
1221 | if (count + 27 > MAX_AGENT_EXPR_LEN) |
1222 | { | |
a04b9d62 | 1223 | str_list.emplace_back (temp_buf.data (), count); |
c906108c | 1224 | count = 0; |
a04b9d62 | 1225 | end = temp_buf.data (); |
c906108c | 1226 | } |
104c1213 | 1227 | |
d1948716 | 1228 | { |
dda83cd7 | 1229 | bfd_signed_vma length |
1f45808e | 1230 | = m_memranges[i].end - m_memranges[i].start; |
d1948716 | 1231 | |
dda83cd7 SM |
1232 | /* The "%X" conversion specifier expects an unsigned argument, |
1233 | so passing -1 (memrange_absolute) to it directly gives you | |
1234 | "FFFFFFFF" (or more, depending on sizeof (unsigned)). | |
1235 | Special-case it. */ | |
1236 | if (m_memranges[i].type == memrange_absolute) | |
1237 | sprintf (end, "M-1,%s,%lX", phex_nz (m_memranges[i].start, 0), | |
19f1935d | 1238 | (long) length); |
dda83cd7 SM |
1239 | else |
1240 | sprintf (end, "M%X,%s,%lX", m_memranges[i].type, | |
19f1935d | 1241 | phex_nz (m_memranges[i].start, 0), (long) length); |
d1948716 | 1242 | } |
104c1213 | 1243 | |
c906108c | 1244 | count += strlen (end); |
a04b9d62 | 1245 | end = temp_buf.data () + count; |
c906108c SS |
1246 | } |
1247 | ||
1f45808e | 1248 | for (i = 0; i < m_aexprs.size (); i++) |
c906108c | 1249 | { |
c378eb4e | 1250 | QUIT; /* Allow user to bail out with ^C. */ |
1f45808e | 1251 | if ((count + 10 + 2 * m_aexprs[i]->len) > MAX_AGENT_EXPR_LEN) |
c906108c | 1252 | { |
a04b9d62 | 1253 | str_list.emplace_back (temp_buf.data (), count); |
c906108c | 1254 | count = 0; |
a04b9d62 | 1255 | end = temp_buf.data (); |
c906108c | 1256 | } |
1f45808e | 1257 | sprintf (end, "X%08X,", m_aexprs[i]->len); |
c906108c SS |
1258 | end += 10; /* 'X' + 8 hex digits + ',' */ |
1259 | count += 10; | |
1260 | ||
1f45808e PA |
1261 | end = mem2hex (m_aexprs[i]->buf, end, m_aexprs[i]->len); |
1262 | count += 2 * m_aexprs[i]->len; | |
c906108c SS |
1263 | } |
1264 | ||
1265 | if (count != 0) | |
1266 | { | |
a04b9d62 | 1267 | str_list.emplace_back (temp_buf.data (), count); |
c906108c | 1268 | count = 0; |
a04b9d62 | 1269 | end = temp_buf.data (); |
c906108c | 1270 | } |
c906108c | 1271 | |
b44ec619 | 1272 | return str_list; |
c906108c SS |
1273 | } |
1274 | ||
bc167b6b | 1275 | /* Add the expression STR to M_COMPUTED. */ |
dc673c81 | 1276 | |
1f45808e | 1277 | void |
bc167b6b | 1278 | collection_list::append_exp (std::string &&str) |
dc673c81 | 1279 | { |
bc167b6b | 1280 | m_computed.push_back (std::move (str)); |
dc673c81 | 1281 | } |
a7bdde9e | 1282 | |
1f45808e PA |
1283 | void |
1284 | collection_list::finish () | |
1285 | { | |
1286 | memrange_sortmerge (m_memranges); | |
1287 | } | |
1288 | ||
a7bdde9e VP |
1289 | static void |
1290 | encode_actions_1 (struct command_line *action, | |
a7bdde9e VP |
1291 | struct bp_location *tloc, |
1292 | int frame_reg, | |
1293 | LONGEST frame_offset, | |
1294 | struct collection_list *collect, | |
1295 | struct collection_list *stepping_list) | |
c906108c | 1296 | { |
6f937416 | 1297 | const char *action_exp; |
104c1213 | 1298 | int i; |
f976f6d4 | 1299 | struct value *tempval; |
c906108c | 1300 | struct cmd_list_element *cmd; |
236f1d4d SS |
1301 | |
1302 | for (; action; action = action->next) | |
c906108c | 1303 | { |
c378eb4e | 1304 | QUIT; /* Allow user to bail out with ^C. */ |
a7bdde9e | 1305 | action_exp = action->line; |
f1735a53 | 1306 | action_exp = skip_spaces (action_exp); |
c906108c | 1307 | |
cf00cd6f | 1308 | cmd = lookup_cmd (&action_exp, cmdlist, "", NULL, -1, 1); |
c906108c | 1309 | if (cmd == 0) |
8a3fe4f8 | 1310 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 1311 | |
bbaca940 | 1312 | if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c | 1313 | { |
92bc6a20 TT |
1314 | int trace_string = 0; |
1315 | ||
3065dfb6 | 1316 | if (*action_exp == '/') |
92bc6a20 | 1317 | action_exp = decode_agent_options (action_exp, &trace_string); |
3065dfb6 | 1318 | |
c5aa993b | 1319 | do |
c378eb4e MS |
1320 | { /* Repeat over a comma-separated list. */ |
1321 | QUIT; /* Allow user to bail out with ^C. */ | |
f1735a53 | 1322 | action_exp = skip_spaces (action_exp); |
c906108c | 1323 | |
c5aa993b JM |
1324 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1325 | { | |
4277c4b8 PFC |
1326 | for (i = 0; i < gdbarch_num_regs (target_gdbarch ()); |
1327 | i++) | |
1328 | { | |
1329 | int remote_regno = (gdbarch_remote_register_number | |
1330 | (target_gdbarch (), i)); | |
1331 | ||
1332 | /* Ignore arch regnos without a corresponding | |
1333 | remote regno. This can happen for regnos not | |
1334 | in the tdesc. */ | |
1335 | if (remote_regno >= 0) | |
1336 | collect->add_remote_register (remote_regno); | |
1337 | } | |
c5aa993b JM |
1338 | action_exp = strchr (action_exp, ','); /* more? */ |
1339 | } | |
1340 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1341 | { | |
1f45808e PA |
1342 | collect->add_local_symbols (target_gdbarch (), |
1343 | tloc->address, | |
1344 | frame_reg, | |
1345 | frame_offset, | |
1346 | 'A', | |
1347 | trace_string); | |
c5aa993b JM |
1348 | action_exp = strchr (action_exp, ','); /* more? */ |
1349 | } | |
1350 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1351 | { | |
1f45808e PA |
1352 | collect->add_local_symbols (target_gdbarch (), |
1353 | tloc->address, | |
1354 | frame_reg, | |
1355 | frame_offset, | |
1356 | 'L', | |
1357 | trace_string); | |
c5aa993b JM |
1358 | action_exp = strchr (action_exp, ','); /* more? */ |
1359 | } | |
6710bf39 SS |
1360 | else if (0 == strncasecmp ("$_ret", action_exp, 5)) |
1361 | { | |
833177a4 PA |
1362 | agent_expr_up aexpr |
1363 | = gen_trace_for_return_address (tloc->address, | |
1364 | target_gdbarch (), | |
1365 | trace_string); | |
6710bf39 | 1366 | |
4277c4b8 | 1367 | finalize_tracepoint_aexpr (aexpr.get ()); |
6710bf39 SS |
1368 | |
1369 | /* take care of the registers */ | |
4277c4b8 | 1370 | collect->add_ax_registers (aexpr.get ()); |
6710bf39 | 1371 | |
6c73cd95 | 1372 | collect->add_aexpr (std::move (aexpr)); |
6710bf39 SS |
1373 | action_exp = strchr (action_exp, ','); /* more? */ |
1374 | } | |
0fb4aa4b PA |
1375 | else if (0 == strncasecmp ("$_sdata", action_exp, 7)) |
1376 | { | |
1f45808e | 1377 | collect->add_static_trace_data (); |
0fb4aa4b PA |
1378 | action_exp = strchr (action_exp, ','); /* more? */ |
1379 | } | |
c5aa993b JM |
1380 | else |
1381 | { | |
744a8059 | 1382 | unsigned long addr; |
c5aa993b | 1383 | |
bc167b6b | 1384 | const char *exp_start = action_exp; |
4d01a485 PA |
1385 | expression_up exp = parse_exp_1 (&action_exp, tloc->address, |
1386 | block_for_pc (tloc->address), | |
1387 | 1); | |
c906108c | 1388 | |
2adab65c | 1389 | switch (exp->first_opcode ()) |
c5aa993b JM |
1390 | { |
1391 | case OP_REGISTER: | |
67f3407f | 1392 | { |
1eaebe02 TT |
1393 | expr::register_operation *regop |
1394 | = (dynamic_cast<expr::register_operation *> | |
1395 | (exp->op.get ())); | |
1396 | const char *name = regop->get_name (); | |
67f3407f | 1397 | |
82e9becd | 1398 | i = user_reg_map_name_to_regnum (target_gdbarch (), |
029a67e4 | 1399 | name, strlen (name)); |
67f3407f DJ |
1400 | if (i == -1) |
1401 | internal_error (__FILE__, __LINE__, | |
1402 | _("Register $%s not available"), | |
1403 | name); | |
1404 | if (info_verbose) | |
1405 | printf_filtered ("OP_REGISTER: "); | |
4277c4b8 PFC |
1406 | collect->add_local_register (target_gdbarch (), |
1407 | i, tloc->address); | |
67f3407f DJ |
1408 | break; |
1409 | } | |
c5aa993b JM |
1410 | |
1411 | case UNOP_MEMVAL: | |
413403fc TT |
1412 | { |
1413 | /* Safe because we know it's a simple expression. */ | |
1414 | tempval = evaluate_expression (exp.get ()); | |
1415 | addr = value_address (tempval); | |
1eaebe02 TT |
1416 | expr::unop_memval_operation *memop |
1417 | = (dynamic_cast<expr::unop_memval_operation *> | |
1418 | (exp->op.get ())); | |
1419 | struct type *type = memop->get_type (); | |
413403fc TT |
1420 | /* Initialize the TYPE_LENGTH if it is a typedef. */ |
1421 | check_typedef (type); | |
1422 | collect->add_memrange (target_gdbarch (), | |
1423 | memrange_absolute, addr, | |
1424 | TYPE_LENGTH (type), | |
1425 | tloc->address); | |
1426 | collect->append_exp (std::string (exp_start, | |
1427 | action_exp)); | |
1428 | } | |
c5aa993b JM |
1429 | break; |
1430 | ||
1431 | case OP_VAR_VALUE: | |
dc673c81 | 1432 | { |
1eaebe02 TT |
1433 | expr::var_value_operation *vvo |
1434 | = (dynamic_cast<expr::var_value_operation *> | |
1435 | (exp->op.get ())); | |
1436 | struct symbol *sym = vvo->get_symbol (); | |
987012b8 | 1437 | const char *name = sym->natural_name (); |
dc673c81 | 1438 | |
413403fc | 1439 | collect->collect_symbol (sym, |
1f45808e PA |
1440 | target_gdbarch (), |
1441 | frame_reg, | |
1442 | frame_offset, | |
1443 | tloc->address, | |
1444 | trace_string); | |
1445 | collect->add_wholly_collected (name); | |
dc673c81 | 1446 | } |
c5aa993b JM |
1447 | break; |
1448 | ||
c378eb4e | 1449 | default: /* Full-fledged expression. */ |
833177a4 PA |
1450 | agent_expr_up aexpr = gen_trace_for_expr (tloc->address, |
1451 | exp.get (), | |
1452 | trace_string); | |
c5aa993b | 1453 | |
4277c4b8 | 1454 | finalize_tracepoint_aexpr (aexpr.get ()); |
c5aa993b | 1455 | |
c378eb4e | 1456 | /* Take care of the registers. */ |
4277c4b8 | 1457 | collect->add_ax_registers (aexpr.get ()); |
dc673c81 | 1458 | |
6c73cd95 | 1459 | collect->add_aexpr (std::move (aexpr)); |
bc167b6b TT |
1460 | collect->append_exp (std::string (exp_start, |
1461 | action_exp)); | |
c5aa993b JM |
1462 | break; |
1463 | } /* switch */ | |
c5aa993b JM |
1464 | } /* do */ |
1465 | } | |
1466 | while (action_exp && *action_exp++ == ','); | |
1467 | } /* if */ | |
6da95a67 SS |
1468 | else if (cmd_cfunc_eq (cmd, teval_pseudocommand)) |
1469 | { | |
1470 | do | |
c378eb4e MS |
1471 | { /* Repeat over a comma-separated list. */ |
1472 | QUIT; /* Allow user to bail out with ^C. */ | |
f1735a53 | 1473 | action_exp = skip_spaces (action_exp); |
6da95a67 SS |
1474 | |
1475 | { | |
4d01a485 PA |
1476 | expression_up exp = parse_exp_1 (&action_exp, tloc->address, |
1477 | block_for_pc (tloc->address), | |
1478 | 1); | |
6da95a67 | 1479 | |
833177a4 PA |
1480 | agent_expr_up aexpr = gen_eval_for_expr (tloc->address, |
1481 | exp.get ()); | |
6da95a67 | 1482 | |
4277c4b8 | 1483 | finalize_tracepoint_aexpr (aexpr.get ()); |
6da95a67 | 1484 | |
6da95a67 SS |
1485 | /* Even though we're not officially collecting, add |
1486 | to the collect list anyway. */ | |
6c73cd95 | 1487 | collect->add_aexpr (std::move (aexpr)); |
6da95a67 SS |
1488 | } /* do */ |
1489 | } | |
1490 | while (action_exp && *action_exp++ == ','); | |
1491 | } /* if */ | |
bbaca940 | 1492 | else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 1493 | { |
a7bdde9e VP |
1494 | /* We check against nested while-stepping when setting |
1495 | breakpoint action, so no way to run into nested | |
1496 | here. */ | |
1497 | gdb_assert (stepping_list); | |
1498 | ||
12973681 | 1499 | encode_actions_1 (action->body_list_0.get (), tloc, frame_reg, |
2a2287c7 | 1500 | frame_offset, stepping_list, NULL); |
c906108c | 1501 | } |
a7bdde9e VP |
1502 | else |
1503 | error (_("Invalid tracepoint command '%s'"), action->line); | |
1504 | } /* for */ | |
1505 | } | |
1506 | ||
dc673c81 | 1507 | /* Encode actions of tracepoint TLOC->owner and fill TRACEPOINT_LIST |
1f45808e | 1508 | and STEPPING_LIST. */ |
5fbce5df | 1509 | |
1f45808e PA |
1510 | void |
1511 | encode_actions (struct bp_location *tloc, | |
1512 | struct collection_list *tracepoint_list, | |
1513 | struct collection_list *stepping_list) | |
a7bdde9e | 1514 | { |
a7bdde9e VP |
1515 | int frame_reg; |
1516 | LONGEST frame_offset; | |
cbfa3b61 | 1517 | |
3e05895e TT |
1518 | gdbarch_virtual_frame_pointer (tloc->gdbarch, |
1519 | tloc->address, &frame_reg, &frame_offset); | |
a7bdde9e | 1520 | |
12973681 TT |
1521 | counted_command_line actions = all_tracepoint_actions (tloc->owner); |
1522 | encode_actions_1 (actions.get (), tloc, frame_reg, frame_offset, | |
dc673c81 | 1523 | tracepoint_list, stepping_list); |
12973681 TT |
1524 | encode_actions_1 (breakpoint_commands (tloc->owner), tloc, |
1525 | frame_reg, frame_offset, tracepoint_list, stepping_list); | |
dc673c81 | 1526 | |
1f45808e PA |
1527 | tracepoint_list->finish (); |
1528 | stepping_list->finish (); | |
dc673c81 YQ |
1529 | } |
1530 | ||
1531 | /* Render all actions into gdb protocol. */ | |
1532 | ||
1533 | void | |
b44ec619 SM |
1534 | encode_actions_rsp (struct bp_location *tloc, |
1535 | std::vector<std::string> *tdp_actions, | |
1536 | std::vector<std::string> *stepping_actions) | |
dc673c81 YQ |
1537 | { |
1538 | struct collection_list tracepoint_list, stepping_list; | |
a7bdde9e | 1539 | |
1f45808e | 1540 | encode_actions (tloc, &tracepoint_list, &stepping_list); |
236f1d4d | 1541 | |
1f45808e PA |
1542 | *tdp_actions = tracepoint_list.stringify (); |
1543 | *stepping_actions = stepping_list.stringify (); | |
c906108c SS |
1544 | } |
1545 | ||
1f45808e | 1546 | void |
833177a4 | 1547 | collection_list::add_aexpr (agent_expr_up aexpr) |
c906108c | 1548 | { |
6c73cd95 | 1549 | m_aexprs.push_back (std::move (aexpr)); |
c906108c SS |
1550 | } |
1551 | ||
bfccc43c YQ |
1552 | static void |
1553 | process_tracepoint_on_disconnect (void) | |
1554 | { | |
bfccc43c YQ |
1555 | int has_pending_p = 0; |
1556 | ||
1557 | /* Check whether we still have pending tracepoint. If we have, warn the | |
1558 | user that pending tracepoint will no longer work. */ | |
f51e0e20 | 1559 | for (breakpoint *b : all_tracepoints ()) |
bfccc43c YQ |
1560 | { |
1561 | if (b->loc == NULL) | |
1562 | { | |
1563 | has_pending_p = 1; | |
1564 | break; | |
1565 | } | |
1566 | else | |
1567 | { | |
1568 | struct bp_location *loc1; | |
1569 | ||
1570 | for (loc1 = b->loc; loc1; loc1 = loc1->next) | |
1571 | { | |
1572 | if (loc1->shlib_disabled) | |
1573 | { | |
1574 | has_pending_p = 1; | |
1575 | break; | |
1576 | } | |
1577 | } | |
1578 | ||
1579 | if (has_pending_p) | |
1580 | break; | |
1581 | } | |
1582 | } | |
bfccc43c YQ |
1583 | |
1584 | if (has_pending_p) | |
1585 | warning (_("Pending tracepoints will not be resolved while" | |
1586 | " GDB is disconnected\n")); | |
1587 | } | |
1588 | ||
aef525cb YQ |
1589 | /* Reset local state of tracing. */ |
1590 | ||
1591 | void | |
1592 | trace_reset_local_state (void) | |
1593 | { | |
1594 | set_traceframe_num (-1); | |
1595 | set_tracepoint_num (-1); | |
1596 | set_traceframe_context (NULL); | |
1597 | clear_traceframe_info (); | |
1598 | } | |
c5aa993b | 1599 | |
f224b49d | 1600 | void |
0b39b52e | 1601 | start_tracing (const char *notes) |
d183932d | 1602 | { |
d914c394 | 1603 | int any_enabled = 0, num_to_download = 0; |
f196051f SS |
1604 | int ret; |
1605 | ||
f51e0e20 | 1606 | std::vector<breakpoint *> tp_vec = all_tracepoints (); |
76a2b958 | 1607 | |
c378eb4e | 1608 | /* No point in tracing without any tracepoints... */ |
f51e0e20 TT |
1609 | if (tp_vec.empty ()) |
1610 | error (_("No tracepoints defined, not starting trace")); | |
76a2b958 | 1611 | |
f51e0e20 | 1612 | for (breakpoint *b : tp_vec) |
76a2b958 | 1613 | { |
d9b3f62e | 1614 | if (b->enable_state == bp_enabled) |
d914c394 SS |
1615 | any_enabled = 1; |
1616 | ||
d9b3f62e | 1617 | if ((b->type == bp_fast_tracepoint |
d914c394 SS |
1618 | ? may_insert_fast_tracepoints |
1619 | : may_insert_tracepoints)) | |
1620 | ++num_to_download; | |
1621 | else | |
1622 | warning (_("May not insert %stracepoints, skipping tracepoint %d"), | |
d9b3f62e | 1623 | (b->type == bp_fast_tracepoint ? "fast " : ""), b->number); |
76a2b958 SS |
1624 | } |
1625 | ||
76a2b958 SS |
1626 | if (!any_enabled) |
1627 | { | |
d248b706 KY |
1628 | if (target_supports_enable_disable_tracepoint ()) |
1629 | warning (_("No tracepoints enabled")); | |
1630 | else | |
1631 | { | |
1632 | /* No point in tracing with only disabled tracepoints that | |
1633 | cannot be re-enabled. */ | |
d248b706 KY |
1634 | error (_("No tracepoints enabled, not starting trace")); |
1635 | } | |
76a2b958 SS |
1636 | } |
1637 | ||
d914c394 | 1638 | if (num_to_download <= 0) |
f51e0e20 | 1639 | error (_("No tracepoints that may be downloaded, not starting trace")); |
d914c394 | 1640 | |
76a2b958 SS |
1641 | target_trace_init (); |
1642 | ||
f51e0e20 | 1643 | for (breakpoint *b : tp_vec) |
7a697b8d | 1644 | { |
d9b3f62e | 1645 | struct tracepoint *t = (struct tracepoint *) b; |
e8ba3115 | 1646 | struct bp_location *loc; |
f2a8bc8a | 1647 | int bp_location_downloaded = 0; |
d9b3f62e | 1648 | |
4511b1ba YQ |
1649 | /* Clear `inserted' flag. */ |
1650 | for (loc = b->loc; loc; loc = loc->next) | |
1651 | loc->inserted = 0; | |
1652 | ||
d9b3f62e | 1653 | if ((b->type == bp_fast_tracepoint |
d914c394 SS |
1654 | ? !may_insert_fast_tracepoints |
1655 | : !may_insert_tracepoints)) | |
1656 | continue; | |
1657 | ||
35b1e5cc | 1658 | t->number_on_target = 0; |
e8ba3115 YQ |
1659 | |
1660 | for (loc = b->loc; loc; loc = loc->next) | |
1e4d1764 YQ |
1661 | { |
1662 | /* Since tracepoint locations are never duplicated, `inserted' | |
1663 | flag should be zero. */ | |
1664 | gdb_assert (!loc->inserted); | |
1665 | ||
1666 | target_download_tracepoint (loc); | |
1667 | ||
1668 | loc->inserted = 1; | |
f2a8bc8a | 1669 | bp_location_downloaded = 1; |
1e4d1764 | 1670 | } |
e8ba3115 | 1671 | |
d9b3f62e | 1672 | t->number_on_target = b->number; |
55aa24fb SDJ |
1673 | |
1674 | for (loc = b->loc; loc; loc = loc->next) | |
935676c9 SDJ |
1675 | if (loc->probe.prob != NULL) |
1676 | loc->probe.prob->set_semaphore (loc->probe.objfile, | |
1677 | loc->gdbarch); | |
f2a8bc8a YQ |
1678 | |
1679 | if (bp_location_downloaded) | |
76727919 | 1680 | gdb::observers::breakpoint_modified.notify (b); |
7a697b8d | 1681 | } |
76a2b958 | 1682 | |
00bf0b85 | 1683 | /* Send down all the trace state variables too. */ |
c252925c SM |
1684 | for (const trace_state_variable &tsv : tvariables) |
1685 | target_download_trace_state_variable (tsv); | |
35b1e5cc SS |
1686 | |
1687 | /* Tell target to treat text-like sections as transparent. */ | |
1688 | target_trace_set_readonly_regions (); | |
4daf5ac0 SS |
1689 | /* Set some mode flags. */ |
1690 | target_set_disconnected_tracing (disconnected_tracing); | |
1691 | target_set_circular_trace_buffer (circular_trace_buffer); | |
f6f899bf | 1692 | target_set_trace_buffer_size (trace_buffer_size); |
1042e4c0 | 1693 | |
f196051f SS |
1694 | if (!notes) |
1695 | notes = trace_notes; | |
1696 | ret = target_set_trace_notes (trace_user, notes, NULL); | |
1697 | ||
1698 | if (!ret && (trace_user || notes)) | |
43011e52 | 1699 | warning (_("Target does not support trace user/notes, info ignored")); |
f196051f | 1700 | |
35b1e5cc SS |
1701 | /* Now insert traps and begin collecting data. */ |
1702 | target_trace_start (); | |
1042e4c0 | 1703 | |
35b1e5cc | 1704 | /* Reset our local state. */ |
aef525cb | 1705 | trace_reset_local_state (); |
00bf0b85 | 1706 | current_trace_status()->running = 1; |
1042e4c0 SS |
1707 | } |
1708 | ||
f196051f SS |
1709 | /* The tstart command requests the target to start a new trace run. |
1710 | The command passes any arguments it has to the target verbatim, as | |
1711 | an optional "trace note". This is useful as for instance a warning | |
1712 | to other users if the trace runs disconnected, and you don't want | |
1713 | anybody else messing with the target. */ | |
f224b49d VP |
1714 | |
1715 | static void | |
0b39b52e | 1716 | tstart_command (const char *args, int from_tty) |
f224b49d VP |
1717 | { |
1718 | dont_repeat (); /* Like "run", dangerous to repeat accidentally. */ | |
1719 | ||
615bcdef SS |
1720 | if (current_trace_status ()->running) |
1721 | { | |
1722 | if (from_tty | |
1723 | && !query (_("A trace is running already. Start a new run? "))) | |
1724 | error (_("New trace run not started.")); | |
1725 | } | |
1726 | ||
f196051f | 1727 | start_tracing (args); |
f224b49d VP |
1728 | } |
1729 | ||
f196051f SS |
1730 | /* The tstop command stops the tracing run. The command passes any |
1731 | supplied arguments to the target verbatim as a "stop note"; if the | |
1732 | target supports trace notes, then it will be reported back as part | |
1733 | of the trace run's status. */ | |
1734 | ||
c906108c | 1735 | static void |
0b39b52e | 1736 | tstop_command (const char *args, int from_tty) |
d183932d | 1737 | { |
615bcdef SS |
1738 | if (!current_trace_status ()->running) |
1739 | error (_("Trace is not running.")); | |
1740 | ||
f196051f | 1741 | stop_tracing (args); |
c906108c SS |
1742 | } |
1743 | ||
d5551862 | 1744 | void |
0b39b52e | 1745 | stop_tracing (const char *note) |
d5551862 | 1746 | { |
f196051f SS |
1747 | int ret; |
1748 | ||
35b1e5cc | 1749 | target_trace_stop (); |
f196051f | 1750 | |
f51e0e20 | 1751 | for (breakpoint *t : all_tracepoints ()) |
55aa24fb SDJ |
1752 | { |
1753 | struct bp_location *loc; | |
1754 | ||
1755 | if ((t->type == bp_fast_tracepoint | |
1756 | ? !may_insert_fast_tracepoints | |
1757 | : !may_insert_tracepoints)) | |
1758 | continue; | |
1759 | ||
1760 | for (loc = t->loc; loc; loc = loc->next) | |
1761 | { | |
1762 | /* GDB can be totally absent in some disconnected trace scenarios, | |
1763 | but we don't really care if this semaphore goes out of sync. | |
1764 | That's why we are decrementing it here, but not taking care | |
1765 | in other places. */ | |
935676c9 SDJ |
1766 | if (loc->probe.prob != NULL) |
1767 | loc->probe.prob->clear_semaphore (loc->probe.objfile, | |
1768 | loc->gdbarch); | |
55aa24fb SDJ |
1769 | } |
1770 | } | |
1771 | ||
f196051f SS |
1772 | if (!note) |
1773 | note = trace_stop_notes; | |
1774 | ret = target_set_trace_notes (NULL, NULL, note); | |
1775 | ||
1776 | if (!ret && note) | |
43011e52 | 1777 | warning (_("Target does not support trace notes, note ignored")); |
f196051f | 1778 | |
c378eb4e | 1779 | /* Should change in response to reply? */ |
00bf0b85 | 1780 | current_trace_status ()->running = 0; |
d5551862 SS |
1781 | } |
1782 | ||
c906108c SS |
1783 | /* tstatus command */ |
1784 | static void | |
0b39b52e | 1785 | tstatus_command (const char *args, int from_tty) |
d183932d | 1786 | { |
00bf0b85 | 1787 | struct trace_status *ts = current_trace_status (); |
f51e0e20 | 1788 | int status; |
35b1e5cc | 1789 | |
00bf0b85 SS |
1790 | status = target_get_trace_status (ts); |
1791 | ||
1792 | if (status == -1) | |
1793 | { | |
f5911ea1 | 1794 | if (ts->filename != NULL) |
00bf0b85 SS |
1795 | printf_filtered (_("Using a trace file.\n")); |
1796 | else | |
1797 | { | |
1798 | printf_filtered (_("Trace can not be run on this target.\n")); | |
1799 | return; | |
1800 | } | |
1801 | } | |
1802 | ||
1803 | if (!ts->running_known) | |
1804 | { | |
1805 | printf_filtered (_("Run/stop status is unknown.\n")); | |
1806 | } | |
1807 | else if (ts->running) | |
c906108c | 1808 | { |
35b1e5cc | 1809 | printf_filtered (_("Trace is running on the target.\n")); |
c906108c SS |
1810 | } |
1811 | else | |
00bf0b85 SS |
1812 | { |
1813 | switch (ts->stop_reason) | |
1814 | { | |
1815 | case trace_never_run: | |
1816 | printf_filtered (_("No trace has been run on the target.\n")); | |
1817 | break; | |
e5a873b7 | 1818 | case trace_stop_command: |
f196051f SS |
1819 | if (ts->stop_desc) |
1820 | printf_filtered (_("Trace stopped by a tstop command (%s).\n"), | |
1821 | ts->stop_desc); | |
1822 | else | |
1823 | printf_filtered (_("Trace stopped by a tstop command.\n")); | |
00bf0b85 SS |
1824 | break; |
1825 | case trace_buffer_full: | |
1826 | printf_filtered (_("Trace stopped because the buffer was full.\n")); | |
1827 | break; | |
1828 | case trace_disconnected: | |
1829 | printf_filtered (_("Trace stopped because of disconnection.\n")); | |
1830 | break; | |
1831 | case tracepoint_passcount: | |
00bf0b85 SS |
1832 | printf_filtered (_("Trace stopped by tracepoint %d.\n"), |
1833 | ts->stopping_tracepoint); | |
1834 | break; | |
6c28cbf2 SS |
1835 | case tracepoint_error: |
1836 | if (ts->stopping_tracepoint) | |
3e43a32a MS |
1837 | printf_filtered (_("Trace stopped by an " |
1838 | "error (%s, tracepoint %d).\n"), | |
f196051f | 1839 | ts->stop_desc, ts->stopping_tracepoint); |
6c28cbf2 SS |
1840 | else |
1841 | printf_filtered (_("Trace stopped by an error (%s).\n"), | |
f196051f | 1842 | ts->stop_desc); |
6c28cbf2 | 1843 | break; |
00bf0b85 SS |
1844 | case trace_stop_reason_unknown: |
1845 | printf_filtered (_("Trace stopped for an unknown reason.\n")); | |
1846 | break; | |
1847 | default: | |
1848 | printf_filtered (_("Trace stopped for some other reason (%d).\n"), | |
1849 | ts->stop_reason); | |
1850 | break; | |
1851 | } | |
1852 | } | |
1853 | ||
4daf5ac0 SS |
1854 | if (ts->traceframes_created >= 0 |
1855 | && ts->traceframe_count != ts->traceframes_created) | |
1856 | { | |
3e43a32a MS |
1857 | printf_filtered (_("Buffer contains %d trace " |
1858 | "frames (of %d created total).\n"), | |
4daf5ac0 SS |
1859 | ts->traceframe_count, ts->traceframes_created); |
1860 | } | |
1861 | else if (ts->traceframe_count >= 0) | |
00bf0b85 SS |
1862 | { |
1863 | printf_filtered (_("Collected %d trace frames.\n"), | |
1864 | ts->traceframe_count); | |
1865 | } | |
1866 | ||
4daf5ac0 | 1867 | if (ts->buffer_free >= 0) |
00bf0b85 | 1868 | { |
4daf5ac0 SS |
1869 | if (ts->buffer_size >= 0) |
1870 | { | |
1871 | printf_filtered (_("Trace buffer has %d bytes of %d bytes free"), | |
1872 | ts->buffer_free, ts->buffer_size); | |
1873 | if (ts->buffer_size > 0) | |
1874 | printf_filtered (_(" (%d%% full)"), | |
1875 | ((int) ((((long long) (ts->buffer_size | |
1876 | - ts->buffer_free)) * 100) | |
1877 | / ts->buffer_size))); | |
1878 | printf_filtered (_(".\n")); | |
1879 | } | |
1880 | else | |
1881 | printf_filtered (_("Trace buffer has %d bytes free.\n"), | |
1882 | ts->buffer_free); | |
00bf0b85 | 1883 | } |
35b1e5cc | 1884 | |
33da3f1c SS |
1885 | if (ts->disconnected_tracing) |
1886 | printf_filtered (_("Trace will continue if GDB disconnects.\n")); | |
1887 | else | |
1888 | printf_filtered (_("Trace will stop if GDB disconnects.\n")); | |
1889 | ||
1890 | if (ts->circular_buffer) | |
1891 | printf_filtered (_("Trace buffer is circular.\n")); | |
1892 | ||
f196051f SS |
1893 | if (ts->user_name && strlen (ts->user_name) > 0) |
1894 | printf_filtered (_("Trace user is %s.\n"), ts->user_name); | |
1895 | ||
1896 | if (ts->notes && strlen (ts->notes) > 0) | |
1897 | printf_filtered (_("Trace notes: %s.\n"), ts->notes); | |
1898 | ||
00bf0b85 | 1899 | /* Now report on what we're doing with tfind. */ |
35b1e5cc SS |
1900 | if (traceframe_number >= 0) |
1901 | printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"), | |
1902 | traceframe_number, tracepoint_number); | |
1903 | else | |
1904 | printf_filtered (_("Not looking at any trace frame.\n")); | |
f196051f SS |
1905 | |
1906 | /* Report start/stop times if supplied. */ | |
1907 | if (ts->start_time) | |
1908 | { | |
1909 | if (ts->stop_time) | |
1910 | { | |
1911 | LONGEST run_time = ts->stop_time - ts->start_time; | |
1912 | ||
1913 | /* Reporting a run time is more readable than two long numbers. */ | |
1914 | printf_filtered (_("Trace started at %ld.%06ld secs, stopped %ld.%06ld secs later.\n"), | |
f30aa5af DK |
1915 | (long int) (ts->start_time / 1000000), |
1916 | (long int) (ts->start_time % 1000000), | |
1917 | (long int) (run_time / 1000000), | |
1918 | (long int) (run_time % 1000000)); | |
f196051f SS |
1919 | } |
1920 | else | |
1921 | printf_filtered (_("Trace started at %ld.%06ld secs.\n"), | |
f30aa5af DK |
1922 | (long int) (ts->start_time / 1000000), |
1923 | (long int) (ts->start_time % 1000000)); | |
f196051f SS |
1924 | } |
1925 | else if (ts->stop_time) | |
1926 | printf_filtered (_("Trace stopped at %ld.%06ld secs.\n"), | |
f30aa5af DK |
1927 | (long int) (ts->stop_time / 1000000), |
1928 | (long int) (ts->stop_time % 1000000)); | |
f196051f SS |
1929 | |
1930 | /* Now report any per-tracepoint status available. */ | |
f51e0e20 | 1931 | for (breakpoint *t : all_tracepoints ()) |
f196051f | 1932 | target_get_tracepoint_status (t, NULL); |
c906108c SS |
1933 | } |
1934 | ||
f224b49d VP |
1935 | /* Report the trace status to uiout, in a way suitable for MI, and not |
1936 | suitable for CLI. If ON_STOP is true, suppress a few fields that | |
1937 | are not meaningful in the -trace-stop response. | |
1938 | ||
1939 | The implementation is essentially parallel to trace_status_command, but | |
1940 | merging them will result in unreadable code. */ | |
1941 | void | |
1942 | trace_status_mi (int on_stop) | |
1943 | { | |
79a45e25 | 1944 | struct ui_out *uiout = current_uiout; |
f224b49d VP |
1945 | struct trace_status *ts = current_trace_status (); |
1946 | int status; | |
f224b49d VP |
1947 | |
1948 | status = target_get_trace_status (ts); | |
1949 | ||
f5911ea1 | 1950 | if (status == -1 && ts->filename == NULL) |
f224b49d | 1951 | { |
112e8700 | 1952 | uiout->field_string ("supported", "0"); |
f224b49d VP |
1953 | return; |
1954 | } | |
1955 | ||
f5911ea1 | 1956 | if (ts->filename != NULL) |
112e8700 | 1957 | uiout->field_string ("supported", "file"); |
f224b49d | 1958 | else if (!on_stop) |
112e8700 | 1959 | uiout->field_string ("supported", "1"); |
f224b49d | 1960 | |
f5911ea1 | 1961 | if (ts->filename != NULL) |
112e8700 | 1962 | uiout->field_string ("trace-file", ts->filename); |
f5911ea1 | 1963 | |
f224b49d VP |
1964 | gdb_assert (ts->running_known); |
1965 | ||
1966 | if (ts->running) | |
1967 | { | |
112e8700 | 1968 | uiout->field_string ("running", "1"); |
f224b49d VP |
1969 | |
1970 | /* Unlike CLI, do not show the state of 'disconnected-tracing' variable. | |
1971 | Given that the frontend gets the status either on -trace-stop, or from | |
1972 | -trace-status after re-connection, it does not seem like this | |
1973 | information is necessary for anything. It is not necessary for either | |
1974 | figuring the vital state of the target nor for navigation of trace | |
1975 | frames. If the frontend wants to show the current state is some | |
1976 | configure dialog, it can request the value when such dialog is | |
1977 | invoked by the user. */ | |
1978 | } | |
1979 | else | |
1980 | { | |
a121b7c1 | 1981 | const char *stop_reason = NULL; |
f224b49d VP |
1982 | int stopping_tracepoint = -1; |
1983 | ||
1984 | if (!on_stop) | |
112e8700 | 1985 | uiout->field_string ("running", "0"); |
f224b49d VP |
1986 | |
1987 | if (ts->stop_reason != trace_stop_reason_unknown) | |
1988 | { | |
1989 | switch (ts->stop_reason) | |
1990 | { | |
e5a873b7 | 1991 | case trace_stop_command: |
f224b49d VP |
1992 | stop_reason = "request"; |
1993 | break; | |
1994 | case trace_buffer_full: | |
1995 | stop_reason = "overflow"; | |
1996 | break; | |
1997 | case trace_disconnected: | |
1998 | stop_reason = "disconnection"; | |
1999 | break; | |
2000 | case tracepoint_passcount: | |
2001 | stop_reason = "passcount"; | |
2002 | stopping_tracepoint = ts->stopping_tracepoint; | |
2003 | break; | |
6c28cbf2 SS |
2004 | case tracepoint_error: |
2005 | stop_reason = "error"; | |
2006 | stopping_tracepoint = ts->stopping_tracepoint; | |
2007 | break; | |
f224b49d VP |
2008 | } |
2009 | ||
2010 | if (stop_reason) | |
2011 | { | |
112e8700 | 2012 | uiout->field_string ("stop-reason", stop_reason); |
f224b49d | 2013 | if (stopping_tracepoint != -1) |
381befee TT |
2014 | uiout->field_signed ("stopping-tracepoint", |
2015 | stopping_tracepoint); | |
6c28cbf2 | 2016 | if (ts->stop_reason == tracepoint_error) |
112e8700 | 2017 | uiout->field_string ("error-description", |
f196051f | 2018 | ts->stop_desc); |
f224b49d VP |
2019 | } |
2020 | } | |
2021 | } | |
2022 | ||
a97153c7 | 2023 | if (ts->traceframe_count != -1) |
381befee | 2024 | uiout->field_signed ("frames", ts->traceframe_count); |
87290684 | 2025 | if (ts->traceframes_created != -1) |
381befee | 2026 | uiout->field_signed ("frames-created", ts->traceframes_created); |
a97153c7 | 2027 | if (ts->buffer_size != -1) |
381befee | 2028 | uiout->field_signed ("buffer-size", ts->buffer_size); |
a97153c7 | 2029 | if (ts->buffer_free != -1) |
381befee | 2030 | uiout->field_signed ("buffer-free", ts->buffer_free); |
a97153c7 | 2031 | |
381befee TT |
2032 | uiout->field_signed ("disconnected", ts->disconnected_tracing); |
2033 | uiout->field_signed ("circular", ts->circular_buffer); | |
f196051f | 2034 | |
112e8700 SM |
2035 | uiout->field_string ("user-name", ts->user_name); |
2036 | uiout->field_string ("notes", ts->notes); | |
f196051f SS |
2037 | |
2038 | { | |
2039 | char buf[100]; | |
2040 | ||
2041 | xsnprintf (buf, sizeof buf, "%ld.%06ld", | |
f30aa5af DK |
2042 | (long int) (ts->start_time / 1000000), |
2043 | (long int) (ts->start_time % 1000000)); | |
112e8700 | 2044 | uiout->field_string ("start-time", buf); |
f196051f | 2045 | xsnprintf (buf, sizeof buf, "%ld.%06ld", |
f30aa5af DK |
2046 | (long int) (ts->stop_time / 1000000), |
2047 | (long int) (ts->stop_time % 1000000)); | |
112e8700 | 2048 | uiout->field_string ("stop-time", buf); |
f196051f | 2049 | } |
f224b49d VP |
2050 | } |
2051 | ||
2f9d54cf PA |
2052 | /* Check if a trace run is ongoing. If so, and FROM_TTY, query the |
2053 | user if she really wants to detach. */ | |
2054 | ||
d5551862 | 2055 | void |
2f9d54cf | 2056 | query_if_trace_running (int from_tty) |
d5551862 | 2057 | { |
2f9d54cf PA |
2058 | if (!from_tty) |
2059 | return; | |
2060 | ||
00bf0b85 SS |
2061 | /* It can happen that the target that was tracing went away on its |
2062 | own, and we didn't notice. Get a status update, and if the | |
2063 | current target doesn't even do tracing, then assume it's not | |
2064 | running anymore. */ | |
26afc0d7 | 2065 | if (target_get_trace_status (current_trace_status ()) < 0) |
00bf0b85 SS |
2066 | current_trace_status ()->running = 0; |
2067 | ||
33da3f1c SS |
2068 | /* If running interactively, give the user the option to cancel and |
2069 | then decide what to do differently with the run. Scripts are | |
2070 | just going to disconnect and let the target deal with it, | |
2071 | according to how it's been instructed previously via | |
2072 | disconnected-tracing. */ | |
2f9d54cf | 2073 | if (current_trace_status ()->running) |
d5551862 | 2074 | { |
bfccc43c YQ |
2075 | process_tracepoint_on_disconnect (); |
2076 | ||
33da3f1c SS |
2077 | if (current_trace_status ()->disconnected_tracing) |
2078 | { | |
3e43a32a MS |
2079 | if (!query (_("Trace is running and will " |
2080 | "continue after detach; detach anyway? "))) | |
33da3f1c SS |
2081 | error (_("Not confirmed.")); |
2082 | } | |
2083 | else | |
2084 | { | |
3e43a32a MS |
2085 | if (!query (_("Trace is running but will " |
2086 | "stop on detach; detach anyway? "))) | |
33da3f1c SS |
2087 | error (_("Not confirmed.")); |
2088 | } | |
d5551862 | 2089 | } |
2f9d54cf | 2090 | } |
8b9b7ef8 | 2091 | |
2f9d54cf PA |
2092 | /* This function handles the details of what to do about an ongoing |
2093 | tracing run if the user has asked to detach or otherwise disconnect | |
2094 | from the target. */ | |
2095 | ||
2096 | void | |
2097 | disconnect_tracing (void) | |
2098 | { | |
8b9b7ef8 SS |
2099 | /* Also we want to be out of tfind mode, otherwise things can get |
2100 | confusing upon reconnection. Just use these calls instead of | |
2101 | full tfind_1 behavior because we're in the middle of detaching, | |
2102 | and there's no point to updating current stack frame etc. */ | |
aef525cb | 2103 | trace_reset_local_state (); |
d5551862 SS |
2104 | } |
2105 | ||
d183932d | 2106 | /* Worker function for the various flavors of the tfind command. */ |
f197e0f1 VP |
2107 | void |
2108 | tfind_1 (enum trace_find_type type, int num, | |
cc5925ad | 2109 | CORE_ADDR addr1, CORE_ADDR addr2, |
f197e0f1 | 2110 | int from_tty) |
c906108c SS |
2111 | { |
2112 | int target_frameno = -1, target_tracept = -1; | |
2ce6d6bf | 2113 | struct frame_id old_frame_id = null_frame_id; |
d9b3f62e | 2114 | struct tracepoint *tp; |
79a45e25 | 2115 | struct ui_out *uiout = current_uiout; |
c906108c | 2116 | |
2ce6d6bf SS |
2117 | /* Only try to get the current stack frame if we have a chance of |
2118 | succeeding. In particular, if we're trying to get a first trace | |
2119 | frame while all threads are running, it's not going to succeed, | |
2120 | so leave it with a default value and let the frame comparison | |
2121 | below (correctly) decide to print out the source location of the | |
2122 | trace frame. */ | |
2123 | if (!(type == tfind_number && num == -1) | |
2124 | && (has_stack_frames () || traceframe_number >= 0)) | |
2125 | old_frame_id = get_frame_id (get_current_frame ()); | |
c906108c | 2126 | |
35b1e5cc SS |
2127 | target_frameno = target_trace_find (type, num, addr1, addr2, |
2128 | &target_tracept); | |
2129 | ||
2130 | if (type == tfind_number | |
2131 | && num == -1 | |
2132 | && target_frameno == -1) | |
2133 | { | |
2134 | /* We told the target to get out of tfind mode, and it did. */ | |
2135 | } | |
2136 | else if (target_frameno == -1) | |
2137 | { | |
2ce6d6bf | 2138 | /* A request for a non-existent trace frame has failed. |
35b1e5cc SS |
2139 | Our response will be different, depending on FROM_TTY: |
2140 | ||
2141 | If FROM_TTY is true, meaning that this command was | |
2142 | typed interactively by the user, then give an error | |
2143 | and DO NOT change the state of traceframe_number etc. | |
2144 | ||
2145 | However if FROM_TTY is false, meaning that we're either | |
2146 | in a script, a loop, or a user-defined command, then | |
2147 | DON'T give an error, but DO change the state of | |
2148 | traceframe_number etc. to invalid. | |
2149 | ||
30baf67b | 2150 | The rationale is that if you typed the command, you |
35b1e5cc SS |
2151 | might just have committed a typo or something, and you'd |
2152 | like to NOT lose your current debugging state. However | |
2153 | if you're in a user-defined command or especially in a | |
2154 | loop, then you need a way to detect that the command | |
2155 | failed WITHOUT aborting. This allows you to write | |
2156 | scripts that search thru the trace buffer until the end, | |
2157 | and then continue on to do something else. */ | |
2158 | ||
2159 | if (from_tty) | |
2160 | error (_("Target failed to find requested trace frame.")); | |
2161 | else | |
2162 | { | |
2163 | if (info_verbose) | |
2164 | printf_filtered ("End of trace buffer.\n"); | |
c378eb4e | 2165 | #if 0 /* dubious now? */ |
35b1e5cc SS |
2166 | /* The following will not recurse, since it's |
2167 | special-cased. */ | |
e5a873b7 | 2168 | tfind_command ("-1", from_tty); |
35b1e5cc SS |
2169 | #endif |
2170 | } | |
2171 | } | |
2172 | ||
d5551862 SS |
2173 | tp = get_tracepoint_by_number_on_target (target_tracept); |
2174 | ||
35f196d9 | 2175 | reinit_frame_cache (); |
2f4d8875 | 2176 | target_dcache_invalidate (); |
8d735b87 | 2177 | |
c1fc2657 | 2178 | set_tracepoint_num (tp ? tp->number : target_tracept); |
201b4506 YQ |
2179 | |
2180 | if (target_frameno != get_traceframe_number ()) | |
76727919 | 2181 | gdb::observers::traceframe_changed.notify (target_frameno, tracepoint_number); |
201b4506 | 2182 | |
8d735b87 YQ |
2183 | set_current_traceframe (target_frameno); |
2184 | ||
c906108c | 2185 | if (target_frameno == -1) |
fb14de7b | 2186 | set_traceframe_context (NULL); |
c906108c | 2187 | else |
fb14de7b | 2188 | set_traceframe_context (get_current_frame ()); |
c906108c | 2189 | |
f197e0f1 VP |
2190 | if (traceframe_number >= 0) |
2191 | { | |
2192 | /* Use different branches for MI and CLI to make CLI messages | |
2193 | i18n-eable. */ | |
112e8700 | 2194 | if (uiout->is_mi_like_p ()) |
f197e0f1 | 2195 | { |
112e8700 | 2196 | uiout->field_string ("found", "1"); |
381befee TT |
2197 | uiout->field_signed ("tracepoint", tracepoint_number); |
2198 | uiout->field_signed ("traceframe", traceframe_number); | |
f197e0f1 VP |
2199 | } |
2200 | else | |
2201 | { | |
2202 | printf_unfiltered (_("Found trace frame %d, tracepoint %d\n"), | |
2203 | traceframe_number, tracepoint_number); | |
2204 | } | |
2205 | } | |
2206 | else | |
2207 | { | |
112e8700 SM |
2208 | if (uiout->is_mi_like_p ()) |
2209 | uiout->field_string ("found", "0"); | |
4136fdd2 SS |
2210 | else if (type == tfind_number && num == -1) |
2211 | printf_unfiltered (_("No longer looking at any trace frame\n")); | |
c378eb4e | 2212 | else /* This case may never occur, check. */ |
4136fdd2 | 2213 | printf_unfiltered (_("No trace frame found\n")); |
f197e0f1 VP |
2214 | } |
2215 | ||
00bf0b85 SS |
2216 | /* If we're in nonstop mode and getting out of looking at trace |
2217 | frames, there won't be any current frame to go back to and | |
2218 | display. */ | |
2219 | if (from_tty | |
2220 | && (has_stack_frames () || traceframe_number >= 0)) | |
c906108c | 2221 | { |
0faf0076 | 2222 | enum print_what print_what; |
c906108c | 2223 | |
2ce6d6bf | 2224 | /* NOTE: in imitation of the step command, try to determine |
dda83cd7 SM |
2225 | whether we have made a transition from one function to |
2226 | another. If so, we'll print the "stack frame" (ie. the new | |
2227 | function and it's arguments) -- otherwise we'll just show the | |
2228 | new source line. */ | |
fb14de7b UW |
2229 | |
2230 | if (frame_id_eq (old_frame_id, | |
2231 | get_frame_id (get_current_frame ()))) | |
0faf0076 | 2232 | print_what = SRC_LINE; |
c906108c | 2233 | else |
0faf0076 | 2234 | print_what = SRC_AND_LOC; |
c906108c | 2235 | |
08d72866 | 2236 | print_stack_frame (get_selected_frame (NULL), 1, print_what, 1); |
c906108c SS |
2237 | do_displays (); |
2238 | } | |
2239 | } | |
2240 | ||
cc3da688 YQ |
2241 | /* Error on looking at traceframes while trace is running. */ |
2242 | ||
2243 | void | |
2244 | check_trace_running (struct trace_status *status) | |
2245 | { | |
2246 | if (status->running && status->filename == NULL) | |
2247 | error (_("May not look at trace frames while trace is running.")); | |
2248 | } | |
2249 | ||
c906108c SS |
2250 | /* trace_find_command takes a trace frame number n, |
2251 | sends "QTFrame:<n>" to the target, | |
2252 | and accepts a reply that may contain several optional pieces | |
2253 | of information: a frame number, a tracepoint number, and an | |
2254 | indication of whether this is a trap frame or a stepping frame. | |
2255 | ||
2256 | The minimal response is just "OK" (which indicates that the | |
2257 | target does not give us a frame number or a tracepoint number). | |
2258 | Instead of that, the target may send us a string containing | |
2259 | any combination of: | |
c5aa993b JM |
2260 | F<hexnum> (gives the selected frame number) |
2261 | T<hexnum> (gives the selected tracepoint number) | |
2262 | */ | |
c906108c SS |
2263 | |
2264 | /* tfind command */ | |
2265 | static void | |
a121b7c1 | 2266 | tfind_command_1 (const char *args, int from_tty) |
c378eb4e | 2267 | { /* This should only be called with a numeric argument. */ |
c906108c | 2268 | int frameno = -1; |
c906108c | 2269 | |
cc3da688 | 2270 | check_trace_running (current_trace_status ()); |
35b1e5cc SS |
2271 | |
2272 | if (args == 0 || *args == 0) | |
2273 | { /* TFIND with no args means find NEXT trace frame. */ | |
2274 | if (traceframe_number == -1) | |
c378eb4e | 2275 | frameno = 0; /* "next" is first one. */ |
dda83cd7 | 2276 | else |
35b1e5cc SS |
2277 | frameno = traceframe_number + 1; |
2278 | } | |
2279 | else if (0 == strcmp (args, "-")) | |
c906108c | 2280 | { |
35b1e5cc SS |
2281 | if (traceframe_number == -1) |
2282 | error (_("not debugging trace buffer")); | |
2283 | else if (from_tty && traceframe_number == 0) | |
2284 | error (_("already at start of trace buffer")); | |
2285 | ||
2286 | frameno = traceframe_number - 1; | |
2287 | } | |
2288 | /* A hack to work around eval's need for fp to have been collected. */ | |
2289 | else if (0 == strcmp (args, "-1")) | |
2290 | frameno = -1; | |
2291 | else | |
2292 | frameno = parse_and_eval_long (args); | |
c906108c | 2293 | |
35b1e5cc SS |
2294 | if (frameno < -1) |
2295 | error (_("invalid input (%d is less than zero)"), frameno); | |
c906108c | 2296 | |
f197e0f1 | 2297 | tfind_1 (tfind_number, frameno, 0, 0, from_tty); |
c906108c SS |
2298 | } |
2299 | ||
a121b7c1 | 2300 | static void |
981a3fb3 | 2301 | tfind_command (const char *args, int from_tty) |
a121b7c1 | 2302 | { |
09b847f3 | 2303 | tfind_command_1 (args, from_tty); |
a121b7c1 PA |
2304 | } |
2305 | ||
c906108c SS |
2306 | /* tfind end */ |
2307 | static void | |
2983f7cb | 2308 | tfind_end_command (const char *args, int from_tty) |
c906108c | 2309 | { |
a121b7c1 | 2310 | tfind_command_1 ("-1", from_tty); |
c906108c SS |
2311 | } |
2312 | ||
c906108c SS |
2313 | /* tfind start */ |
2314 | static void | |
2983f7cb | 2315 | tfind_start_command (const char *args, int from_tty) |
c906108c | 2316 | { |
a121b7c1 | 2317 | tfind_command_1 ("0", from_tty); |
c906108c SS |
2318 | } |
2319 | ||
2320 | /* tfind pc command */ | |
2321 | static void | |
2983f7cb | 2322 | tfind_pc_command (const char *args, int from_tty) |
d183932d | 2323 | { |
c906108c | 2324 | CORE_ADDR pc; |
c906108c | 2325 | |
cc3da688 | 2326 | check_trace_running (current_trace_status ()); |
c906108c | 2327 | |
35b1e5cc SS |
2328 | if (args == 0 || *args == 0) |
2329 | pc = regcache_read_pc (get_current_regcache ()); | |
c906108c | 2330 | else |
35b1e5cc SS |
2331 | pc = parse_and_eval_address (args); |
2332 | ||
f197e0f1 | 2333 | tfind_1 (tfind_pc, 0, pc, 0, from_tty); |
c906108c SS |
2334 | } |
2335 | ||
2336 | /* tfind tracepoint command */ | |
2337 | static void | |
2983f7cb | 2338 | tfind_tracepoint_command (const char *args, int from_tty) |
d183932d | 2339 | { |
c906108c | 2340 | int tdp; |
d9b3f62e | 2341 | struct tracepoint *tp; |
c906108c | 2342 | |
cc3da688 | 2343 | check_trace_running (current_trace_status ()); |
383e5f85 | 2344 | |
35b1e5cc SS |
2345 | if (args == 0 || *args == 0) |
2346 | { | |
2347 | if (tracepoint_number == -1) | |
2348 | error (_("No current tracepoint -- please supply an argument.")); | |
c906108c | 2349 | else |
c378eb4e | 2350 | tdp = tracepoint_number; /* Default is current TDP. */ |
c906108c SS |
2351 | } |
2352 | else | |
35b1e5cc SS |
2353 | tdp = parse_and_eval_long (args); |
2354 | ||
2355 | /* If we have the tracepoint on hand, use the number that the | |
2356 | target knows about (which may be different if we disconnected | |
2357 | and reconnected). */ | |
2358 | tp = get_tracepoint (tdp); | |
2359 | if (tp) | |
2360 | tdp = tp->number_on_target; | |
2361 | ||
f197e0f1 | 2362 | tfind_1 (tfind_tp, tdp, 0, 0, from_tty); |
c906108c SS |
2363 | } |
2364 | ||
2365 | /* TFIND LINE command: | |
c5aa993b | 2366 | |
c906108c | 2367 | This command will take a sourceline for argument, just like BREAK |
d183932d | 2368 | or TRACE (ie. anything that "decode_line_1" can handle). |
c5aa993b | 2369 | |
c906108c SS |
2370 | With no argument, this command will find the next trace frame |
2371 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
2372 | ||
2373 | static void | |
2983f7cb | 2374 | tfind_line_command (const char *args, int from_tty) |
d183932d | 2375 | { |
cc3da688 | 2376 | check_trace_running (current_trace_status ()); |
5af949e3 | 2377 | |
6c5b2ebe | 2378 | symtab_and_line sal; |
35b1e5cc SS |
2379 | if (args == 0 || *args == 0) |
2380 | { | |
2381 | sal = find_pc_line (get_frame_pc (get_current_frame ()), 0); | |
35b1e5cc SS |
2382 | } |
2383 | else | |
42e08e69 | 2384 | { |
6c5b2ebe PA |
2385 | std::vector<symtab_and_line> sals |
2386 | = decode_line_with_current_source (args, DECODE_LINE_FUNFIRSTLINE); | |
2387 | sal = sals[0]; | |
35b1e5cc | 2388 | } |
6c5b2ebe | 2389 | |
35b1e5cc | 2390 | if (sal.symtab == 0) |
42e08e69 SS |
2391 | error (_("No line number information available.")); |
2392 | ||
6c5b2ebe | 2393 | CORE_ADDR start_pc, end_pc; |
42e08e69 | 2394 | if (sal.line > 0 && find_line_pc_range (sal, &start_pc, &end_pc)) |
35b1e5cc SS |
2395 | { |
2396 | if (start_pc == end_pc) | |
2397 | { | |
2398 | printf_filtered ("Line %d of \"%s\"", | |
05cba821 JK |
2399 | sal.line, |
2400 | symtab_to_filename_for_display (sal.symtab)); | |
35b1e5cc SS |
2401 | wrap_here (" "); |
2402 | printf_filtered (" is at address "); | |
2403 | print_address (get_current_arch (), start_pc, gdb_stdout); | |
2404 | wrap_here (" "); | |
2405 | printf_filtered (" but contains no code.\n"); | |
2406 | sal = find_pc_line (start_pc, 0); | |
2407 | if (sal.line > 0 | |
2408 | && find_line_pc_range (sal, &start_pc, &end_pc) | |
2409 | && start_pc != end_pc) | |
2410 | printf_filtered ("Attempting to find line %d instead.\n", | |
2411 | sal.line); | |
2412 | else | |
2413 | error (_("Cannot find a good line.")); | |
2414 | } | |
2415 | } | |
2416 | else | |
2417 | /* Is there any case in which we get here, and have an address | |
2418 | which the user would want to see? If we have debugging | |
2419 | symbols and no line numbers? */ | |
2420 | error (_("Line number %d is out of range for \"%s\"."), | |
05cba821 | 2421 | sal.line, symtab_to_filename_for_display (sal.symtab)); |
35b1e5cc SS |
2422 | |
2423 | /* Find within range of stated line. */ | |
2424 | if (args && *args) | |
f197e0f1 | 2425 | tfind_1 (tfind_range, 0, start_pc, end_pc - 1, from_tty); |
c906108c | 2426 | else |
f197e0f1 | 2427 | tfind_1 (tfind_outside, 0, start_pc, end_pc - 1, from_tty); |
c906108c SS |
2428 | } |
2429 | ||
2430 | /* tfind range command */ | |
2431 | static void | |
2983f7cb | 2432 | tfind_range_command (const char *args, int from_tty) |
104c1213 | 2433 | { |
c906108c | 2434 | static CORE_ADDR start, stop; |
2983f7cb | 2435 | const char *tmp; |
c906108c | 2436 | |
cc3da688 | 2437 | check_trace_running (current_trace_status ()); |
c906108c | 2438 | |
35b1e5cc SS |
2439 | if (args == 0 || *args == 0) |
2440 | { /* XXX FIXME: what should default behavior be? */ | |
65e65158 | 2441 | printf_filtered ("Usage: tfind range STARTADDR, ENDADDR\n"); |
35b1e5cc SS |
2442 | return; |
2443 | } | |
c906108c | 2444 | |
35b1e5cc SS |
2445 | if (0 != (tmp = strchr (args, ','))) |
2446 | { | |
2983f7cb TT |
2447 | std::string start_addr (args, tmp); |
2448 | ++tmp; | |
529480d0 | 2449 | tmp = skip_spaces (tmp); |
2983f7cb | 2450 | start = parse_and_eval_address (start_addr.c_str ()); |
35b1e5cc | 2451 | stop = parse_and_eval_address (tmp); |
c906108c SS |
2452 | } |
2453 | else | |
c378eb4e | 2454 | { /* No explicit end address? */ |
35b1e5cc SS |
2455 | start = parse_and_eval_address (args); |
2456 | stop = start + 1; /* ??? */ | |
2457 | } | |
2458 | ||
f197e0f1 | 2459 | tfind_1 (tfind_range, 0, start, stop, from_tty); |
c906108c SS |
2460 | } |
2461 | ||
2462 | /* tfind outside command */ | |
2463 | static void | |
2983f7cb | 2464 | tfind_outside_command (const char *args, int from_tty) |
104c1213 | 2465 | { |
c906108c | 2466 | CORE_ADDR start, stop; |
2983f7cb | 2467 | const char *tmp; |
c906108c | 2468 | |
f5911ea1 HAQ |
2469 | if (current_trace_status ()->running |
2470 | && current_trace_status ()->filename == NULL) | |
a73c6dcd | 2471 | error (_("May not look at trace frames while trace is running.")); |
c906108c | 2472 | |
35b1e5cc | 2473 | if (args == 0 || *args == 0) |
c378eb4e | 2474 | { /* XXX FIXME: what should default behavior be? */ |
65e65158 | 2475 | printf_filtered ("Usage: tfind outside STARTADDR, ENDADDR\n"); |
35b1e5cc SS |
2476 | return; |
2477 | } | |
c906108c | 2478 | |
35b1e5cc SS |
2479 | if (0 != (tmp = strchr (args, ','))) |
2480 | { | |
2983f7cb TT |
2481 | std::string start_addr (args, tmp); |
2482 | ++tmp; | |
529480d0 | 2483 | tmp = skip_spaces (tmp); |
2983f7cb | 2484 | start = parse_and_eval_address (start_addr.c_str ()); |
35b1e5cc | 2485 | stop = parse_and_eval_address (tmp); |
c906108c SS |
2486 | } |
2487 | else | |
c378eb4e | 2488 | { /* No explicit end address? */ |
35b1e5cc SS |
2489 | start = parse_and_eval_address (args); |
2490 | stop = start + 1; /* ??? */ | |
2491 | } | |
2492 | ||
f197e0f1 | 2493 | tfind_1 (tfind_outside, 0, start, stop, from_tty); |
c906108c SS |
2494 | } |
2495 | ||
c906108c SS |
2496 | /* info scope command: list the locals for a scope. */ |
2497 | static void | |
1d12d88f | 2498 | info_scope_command (const char *args_in, int from_tty) |
c906108c | 2499 | { |
c906108c | 2500 | struct symbol *sym; |
3b7344d5 | 2501 | struct bound_minimal_symbol msym; |
3977b71f | 2502 | const struct block *block; |
0d5cff50 | 2503 | const char *symname; |
f2fc3015 | 2504 | const char *save_args = args_in; |
8157b174 | 2505 | struct block_iterator iter; |
de4f826b | 2506 | int j, count = 0; |
768a979c UW |
2507 | struct gdbarch *gdbarch; |
2508 | int regno; | |
f2fc3015 | 2509 | const char *args = args_in; |
c906108c SS |
2510 | |
2511 | if (args == 0 || *args == 0) | |
3e43a32a MS |
2512 | error (_("requires an argument (function, " |
2513 | "line or *addr) to define a scope")); | |
c906108c | 2514 | |
ffc2605c TT |
2515 | event_location_up location = string_to_event_location (&args, |
2516 | current_language); | |
6c5b2ebe PA |
2517 | std::vector<symtab_and_line> sals |
2518 | = decode_line_1 (location.get (), DECODE_LINE_FUNFIRSTLINE, | |
2519 | NULL, NULL, 0); | |
2520 | if (sals.empty ()) | |
f00aae0f KS |
2521 | { |
2522 | /* Presumably decode_line_1 has already warned. */ | |
f00aae0f KS |
2523 | return; |
2524 | } | |
c906108c | 2525 | |
c378eb4e | 2526 | /* Resolve line numbers to PC. */ |
6c5b2ebe PA |
2527 | resolve_sal_pc (&sals[0]); |
2528 | block = block_for_pc (sals[0].pc); | |
c906108c SS |
2529 | |
2530 | while (block != 0) | |
2531 | { | |
c378eb4e | 2532 | QUIT; /* Allow user to bail out with ^C. */ |
de4f826b | 2533 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 2534 | { |
c378eb4e | 2535 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c SS |
2536 | if (count == 0) |
2537 | printf_filtered ("Scope for %s:\n", save_args); | |
2538 | count++; | |
e88c90f2 | 2539 | |
987012b8 | 2540 | symname = sym->print_name (); |
c906108c | 2541 | if (symname == NULL || *symname == '\0') |
c378eb4e | 2542 | continue; /* Probably botched, certainly useless. */ |
c906108c | 2543 | |
08be3fe3 | 2544 | gdbarch = symbol_arch (sym); |
768a979c | 2545 | |
c906108c | 2546 | printf_filtered ("Symbol %s is ", symname); |
24d6c2a0 TT |
2547 | |
2548 | if (SYMBOL_COMPUTED_OPS (sym) != NULL) | |
2549 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, | |
2b1ffcfd | 2550 | BLOCK_ENTRY_PC (block), |
24d6c2a0 TT |
2551 | gdb_stdout); |
2552 | else | |
c5aa993b | 2553 | { |
24d6c2a0 | 2554 | switch (SYMBOL_CLASS (sym)) |
c5aa993b | 2555 | { |
24d6c2a0 TT |
2556 | default: |
2557 | case LOC_UNDEF: /* Messed up symbol? */ | |
2558 | printf_filtered ("a bogus symbol, class %d.\n", | |
2559 | SYMBOL_CLASS (sym)); | |
2560 | count--; /* Don't count this one. */ | |
2561 | continue; | |
2562 | case LOC_CONST: | |
2563 | printf_filtered ("a constant with value %s (%s)", | |
2564 | plongest (SYMBOL_VALUE (sym)), | |
2565 | hex_string (SYMBOL_VALUE (sym))); | |
2566 | break; | |
2567 | case LOC_CONST_BYTES: | |
2568 | printf_filtered ("constant bytes: "); | |
2569 | if (SYMBOL_TYPE (sym)) | |
2570 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) | |
2571 | fprintf_filtered (gdb_stdout, " %02x", | |
2572 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); | |
2573 | break; | |
2574 | case LOC_STATIC: | |
2575 | printf_filtered ("in static storage at address "); | |
2576 | printf_filtered ("%s", paddress (gdbarch, | |
2577 | SYMBOL_VALUE_ADDRESS (sym))); | |
2578 | break; | |
2579 | case LOC_REGISTER: | |
2580 | /* GDBARCH is the architecture associated with the objfile | |
2581 | the symbol is defined in; the target architecture may be | |
2582 | different, and may provide additional registers. However, | |
2583 | we do not know the target architecture at this point. | |
2584 | We assume the objfile architecture will contain all the | |
2585 | standard registers that occur in debug info in that | |
2586 | objfile. */ | |
2587 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, | |
2588 | gdbarch); | |
2589 | ||
2590 | if (SYMBOL_IS_ARGUMENT (sym)) | |
2591 | printf_filtered ("an argument in register $%s", | |
2592 | gdbarch_register_name (gdbarch, regno)); | |
2593 | else | |
2594 | printf_filtered ("a local variable in register $%s", | |
2595 | gdbarch_register_name (gdbarch, regno)); | |
2596 | break; | |
2597 | case LOC_ARG: | |
2598 | printf_filtered ("an argument at stack/frame offset %s", | |
2599 | plongest (SYMBOL_VALUE (sym))); | |
2600 | break; | |
2601 | case LOC_LOCAL: | |
2602 | printf_filtered ("a local variable at frame offset %s", | |
2603 | plongest (SYMBOL_VALUE (sym))); | |
2604 | break; | |
2605 | case LOC_REF_ARG: | |
2606 | printf_filtered ("a reference argument at offset %s", | |
2607 | plongest (SYMBOL_VALUE (sym))); | |
2608 | break; | |
2609 | case LOC_REGPARM_ADDR: | |
2610 | /* Note comment at LOC_REGISTER. */ | |
2611 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, | |
2612 | gdbarch); | |
2613 | printf_filtered ("the address of an argument, in register $%s", | |
2614 | gdbarch_register_name (gdbarch, regno)); | |
2615 | break; | |
2616 | case LOC_TYPEDEF: | |
2617 | printf_filtered ("a typedef.\n"); | |
2618 | continue; | |
2619 | case LOC_LABEL: | |
2620 | printf_filtered ("a label at address "); | |
2621 | printf_filtered ("%s", paddress (gdbarch, | |
2622 | SYMBOL_VALUE_ADDRESS (sym))); | |
2623 | break; | |
2624 | case LOC_BLOCK: | |
2625 | printf_filtered ("a function at address "); | |
5af949e3 | 2626 | printf_filtered ("%s", |
2b1ffcfd | 2627 | paddress (gdbarch, BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)))); |
24d6c2a0 TT |
2628 | break; |
2629 | case LOC_UNRESOLVED: | |
987012b8 | 2630 | msym = lookup_minimal_symbol (sym->linkage_name (), |
24d6c2a0 | 2631 | NULL, NULL); |
3b7344d5 | 2632 | if (msym.minsym == NULL) |
24d6c2a0 TT |
2633 | printf_filtered ("Unresolved Static"); |
2634 | else | |
2635 | { | |
2636 | printf_filtered ("static storage at address "); | |
2637 | printf_filtered ("%s", | |
2638 | paddress (gdbarch, | |
77e371c0 | 2639 | BMSYMBOL_VALUE_ADDRESS (msym))); |
24d6c2a0 TT |
2640 | } |
2641 | break; | |
2642 | case LOC_OPTIMIZED_OUT: | |
2643 | printf_filtered ("optimized out.\n"); | |
2644 | continue; | |
2645 | case LOC_COMPUTED: | |
2646 | gdb_assert_not_reached (_("LOC_COMPUTED variable missing a method")); | |
c5aa993b | 2647 | } |
c5aa993b | 2648 | } |
c906108c | 2649 | if (SYMBOL_TYPE (sym)) |
cc1defb1 KS |
2650 | { |
2651 | struct type *t = check_typedef (SYMBOL_TYPE (sym)); | |
2652 | ||
2653 | printf_filtered (", length %s.\n", pulongest (TYPE_LENGTH (t))); | |
2654 | } | |
c906108c SS |
2655 | } |
2656 | if (BLOCK_FUNCTION (block)) | |
2657 | break; | |
2658 | else | |
2659 | block = BLOCK_SUPERBLOCK (block); | |
2660 | } | |
2661 | if (count <= 0) | |
2662 | printf_filtered ("Scope for %s contains no locals or arguments.\n", | |
2663 | save_args); | |
2664 | } | |
2665 | ||
afd02f27 PA |
2666 | /* Helper for trace_dump_command. Dump the action list starting at |
2667 | ACTION. STEPPING_ACTIONS is true if we're iterating over the | |
2668 | actions of the body of a while-stepping action. STEPPING_FRAME is | |
2669 | set if the current traceframe was determined to be a while-stepping | |
2670 | traceframe. */ | |
2671 | ||
c906108c | 2672 | static void |
afd02f27 PA |
2673 | trace_dump_actions (struct command_line *action, |
2674 | int stepping_actions, int stepping_frame, | |
2675 | int from_tty) | |
c906108c | 2676 | { |
6f937416 | 2677 | const char *action_exp, *next_comma; |
c906108c | 2678 | |
afd02f27 | 2679 | for (; action != NULL; action = action->next) |
c906108c SS |
2680 | { |
2681 | struct cmd_list_element *cmd; | |
2682 | ||
c378eb4e | 2683 | QUIT; /* Allow user to bail out with ^C. */ |
a7bdde9e | 2684 | action_exp = action->line; |
f1735a53 | 2685 | action_exp = skip_spaces (action_exp); |
c906108c SS |
2686 | |
2687 | /* The collection actions to be done while stepping are | |
dda83cd7 | 2688 | bracketed by the commands "while-stepping" and "end". */ |
c906108c SS |
2689 | |
2690 | if (*action_exp == '#') /* comment line */ | |
2691 | continue; | |
2692 | ||
cf00cd6f | 2693 | cmd = lookup_cmd (&action_exp, cmdlist, "", NULL, -1, 1); |
c906108c | 2694 | if (cmd == 0) |
8a3fe4f8 | 2695 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 2696 | |
bbaca940 | 2697 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
afd02f27 | 2698 | { |
12973681 TT |
2699 | gdb_assert (action->body_list_1 == nullptr); |
2700 | trace_dump_actions (action->body_list_0.get (), | |
2701 | 1, stepping_frame, from_tty); | |
afd02f27 | 2702 | } |
bbaca940 | 2703 | else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c SS |
2704 | { |
2705 | /* Display the collected data. | |
d183932d MS |
2706 | For the trap frame, display only what was collected at |
2707 | the trap. Likewise for stepping frames, display only | |
2708 | what was collected while stepping. This means that the | |
2709 | two boolean variables, STEPPING_FRAME and | |
2710 | STEPPING_ACTIONS should be equal. */ | |
c906108c SS |
2711 | if (stepping_frame == stepping_actions) |
2712 | { | |
92bc6a20 | 2713 | int trace_string = 0; |
6f937416 | 2714 | |
3065dfb6 | 2715 | if (*action_exp == '/') |
92bc6a20 | 2716 | action_exp = decode_agent_options (action_exp, &trace_string); |
3065dfb6 | 2717 | |
c5aa993b | 2718 | do |
c378eb4e MS |
2719 | { /* Repeat over a comma-separated list. */ |
2720 | QUIT; /* Allow user to bail out with ^C. */ | |
c5aa993b JM |
2721 | if (*action_exp == ',') |
2722 | action_exp++; | |
f1735a53 | 2723 | action_exp = skip_spaces (action_exp); |
c5aa993b JM |
2724 | |
2725 | next_comma = strchr (action_exp, ','); | |
2726 | ||
2727 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2728 | registers_info (NULL, from_tty); | |
6710bf39 SS |
2729 | else if (0 == strncasecmp (action_exp, "$_ret", 5)) |
2730 | ; | |
c5aa993b | 2731 | else if (0 == strncasecmp (action_exp, "$loc", 4)) |
11db9430 | 2732 | info_locals_command (NULL, from_tty); |
c5aa993b | 2733 | else if (0 == strncasecmp (action_exp, "$arg", 4)) |
11db9430 | 2734 | info_args_command (NULL, from_tty); |
c5aa993b JM |
2735 | else |
2736 | { /* variable */ | |
15b6611c TT |
2737 | std::string contents; |
2738 | const char *exp = action_exp; | |
6f937416 | 2739 | if (next_comma != NULL) |
c5aa993b | 2740 | { |
6f937416 | 2741 | size_t len = next_comma - action_exp; |
15b6611c TT |
2742 | contents = std::string (action_exp, len); |
2743 | exp = contents.c_str (); | |
6f937416 | 2744 | } |
6f937416 | 2745 | |
15b6611c | 2746 | printf_filtered ("%s = ", exp); |
122b53ea | 2747 | output_command (exp, from_tty); |
c5aa993b JM |
2748 | printf_filtered ("\n"); |
2749 | } | |
c5aa993b JM |
2750 | action_exp = next_comma; |
2751 | } | |
2752 | while (action_exp && *action_exp == ','); | |
c906108c SS |
2753 | } |
2754 | } | |
2755 | } | |
afd02f27 PA |
2756 | } |
2757 | ||
ddacd3c8 YQ |
2758 | /* Return bp_location of the tracepoint associated with the current |
2759 | traceframe. Set *STEPPING_FRAME_P to 1 if the current traceframe | |
2760 | is a stepping traceframe. */ | |
2761 | ||
dc673c81 | 2762 | struct bp_location * |
ddacd3c8 YQ |
2763 | get_traceframe_location (int *stepping_frame_p) |
2764 | { | |
2765 | struct tracepoint *t; | |
2766 | struct bp_location *tloc; | |
2767 | struct regcache *regcache; | |
2768 | ||
2769 | if (tracepoint_number == -1) | |
2770 | error (_("No current trace frame.")); | |
2771 | ||
2772 | t = get_tracepoint (tracepoint_number); | |
2773 | ||
2774 | if (t == NULL) | |
2775 | error (_("No known tracepoint matches 'current' tracepoint #%d."), | |
2776 | tracepoint_number); | |
2777 | ||
2778 | /* The current frame is a trap frame if the frame PC is equal to the | |
2779 | tracepoint PC. If not, then the current frame was collected | |
2780 | during single-stepping. */ | |
2781 | regcache = get_current_regcache (); | |
2782 | ||
2783 | /* If the traceframe's address matches any of the tracepoint's | |
2784 | locations, assume it is a direct hit rather than a while-stepping | |
2785 | frame. (FIXME this is not reliable, should record each frame's | |
2786 | type.) */ | |
c1fc2657 | 2787 | for (tloc = t->loc; tloc; tloc = tloc->next) |
ddacd3c8 YQ |
2788 | if (tloc->address == regcache_read_pc (regcache)) |
2789 | { | |
2790 | *stepping_frame_p = 0; | |
2791 | return tloc; | |
2792 | } | |
2793 | ||
2794 | /* If this is a stepping frame, we don't know which location | |
2795 | triggered. The first is as good (or bad) a guess as any... */ | |
2796 | *stepping_frame_p = 1; | |
c1fc2657 | 2797 | return t->loc; |
ddacd3c8 YQ |
2798 | } |
2799 | ||
12973681 | 2800 | /* Return the default collect actions of a tracepoint T. */ |
3ca73e0c | 2801 | |
12973681 TT |
2802 | static counted_command_line |
2803 | all_tracepoint_actions (struct breakpoint *t) | |
3ca73e0c | 2804 | { |
12973681 | 2805 | counted_command_line actions (nullptr, command_lines_deleter ()); |
3ca73e0c YQ |
2806 | |
2807 | /* If there are default expressions to collect, make up a collect | |
2808 | action and prepend to the action list to encode. Note that since | |
2809 | validation is per-tracepoint (local var "xyz" might be valid for | |
2810 | one tracepoint and not another, etc), we make up the action on | |
2811 | the fly, and don't cache it. */ | |
2812 | if (*default_collect) | |
2813 | { | |
12973681 TT |
2814 | gdb::unique_xmalloc_ptr<char> default_collect_line |
2815 | (xstrprintf ("collect %s", default_collect)); | |
3ca73e0c | 2816 | |
12973681 TT |
2817 | validate_actionline (default_collect_line.get (), t); |
2818 | actions.reset (new struct command_line (simple_control, | |
2819 | default_collect_line.release ()), | |
2820 | command_lines_deleter ()); | |
3ca73e0c YQ |
2821 | } |
2822 | ||
2823 | return actions; | |
2824 | } | |
2825 | ||
afd02f27 PA |
2826 | /* The tdump command. */ |
2827 | ||
2828 | static void | |
0b39b52e | 2829 | tdump_command (const char *args, int from_tty) |
afd02f27 | 2830 | { |
afd02f27 PA |
2831 | int stepping_frame = 0; |
2832 | struct bp_location *loc; | |
2833 | ||
ddacd3c8 YQ |
2834 | /* This throws an error is not inspecting a trace frame. */ |
2835 | loc = get_traceframe_location (&stepping_frame); | |
afd02f27 PA |
2836 | |
2837 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", | |
2838 | tracepoint_number, traceframe_number); | |
2839 | ||
de74e63a YQ |
2840 | /* This command only makes sense for the current frame, not the |
2841 | selected frame. */ | |
5ed8105e PA |
2842 | scoped_restore_current_thread restore_thread; |
2843 | ||
de74e63a YQ |
2844 | select_frame (get_current_frame ()); |
2845 | ||
12973681 | 2846 | counted_command_line actions = all_tracepoint_actions (loc->owner); |
2114d44c | 2847 | |
12973681 TT |
2848 | trace_dump_actions (actions.get (), 0, stepping_frame, from_tty); |
2849 | trace_dump_actions (breakpoint_commands (loc->owner), 0, stepping_frame, | |
2850 | from_tty); | |
c906108c SS |
2851 | } |
2852 | ||
409873ef SS |
2853 | /* Encode a piece of a tracepoint's source-level definition in a form |
2854 | that is suitable for both protocol and saving in files. */ | |
2855 | /* This version does not do multiple encodes for long strings; it should | |
2856 | return an offset to the next piece to encode. FIXME */ | |
2857 | ||
a121b7c1 | 2858 | int |
409873ef | 2859 | encode_source_string (int tpnum, ULONGEST addr, |
a121b7c1 PA |
2860 | const char *srctype, const char *src, |
2861 | char *buf, int buf_size) | |
409873ef SS |
2862 | { |
2863 | if (80 + strlen (srctype) > buf_size) | |
2864 | error (_("Buffer too small for source encoding")); | |
2865 | sprintf (buf, "%x:%s:%s:%x:%x:", | |
3e43a32a MS |
2866 | tpnum, phex_nz (addr, sizeof (addr)), |
2867 | srctype, 0, (int) strlen (src)); | |
409873ef SS |
2868 | if (strlen (buf) + strlen (src) * 2 >= buf_size) |
2869 | error (_("Source string too long for buffer")); | |
9f1b45b0 | 2870 | bin2hex ((gdb_byte *) src, buf + strlen (buf), strlen (src)); |
409873ef SS |
2871 | return -1; |
2872 | } | |
2873 | ||
d5551862 SS |
2874 | /* Tell the target what to do with an ongoing tracing run if GDB |
2875 | disconnects for some reason. */ | |
2876 | ||
d5551862 | 2877 | static void |
eb4c3f4a | 2878 | set_disconnected_tracing (const char *args, int from_tty, |
d5551862 SS |
2879 | struct cmd_list_element *c) |
2880 | { | |
f196051f | 2881 | target_set_disconnected_tracing (disconnected_tracing); |
d5551862 SS |
2882 | } |
2883 | ||
4daf5ac0 | 2884 | static void |
eb4c3f4a | 2885 | set_circular_trace_buffer (const char *args, int from_tty, |
4daf5ac0 SS |
2886 | struct cmd_list_element *c) |
2887 | { | |
2888 | target_set_circular_trace_buffer (circular_trace_buffer); | |
2889 | } | |
2890 | ||
f6f899bf | 2891 | static void |
eb4c3f4a | 2892 | set_trace_buffer_size (const char *args, int from_tty, |
f6f899bf HAQ |
2893 | struct cmd_list_element *c) |
2894 | { | |
2895 | target_set_trace_buffer_size (trace_buffer_size); | |
2896 | } | |
2897 | ||
f196051f | 2898 | static void |
eb4c3f4a | 2899 | set_trace_user (const char *args, int from_tty, |
f196051f SS |
2900 | struct cmd_list_element *c) |
2901 | { | |
2902 | int ret; | |
2903 | ||
2904 | ret = target_set_trace_notes (trace_user, NULL, NULL); | |
2905 | ||
2906 | if (!ret) | |
43011e52 | 2907 | warning (_("Target does not support trace notes, user ignored")); |
f196051f SS |
2908 | } |
2909 | ||
2910 | static void | |
eb4c3f4a | 2911 | set_trace_notes (const char *args, int from_tty, |
f196051f SS |
2912 | struct cmd_list_element *c) |
2913 | { | |
2914 | int ret; | |
2915 | ||
2916 | ret = target_set_trace_notes (NULL, trace_notes, NULL); | |
2917 | ||
2918 | if (!ret) | |
43011e52 | 2919 | warning (_("Target does not support trace notes, note ignored")); |
f196051f SS |
2920 | } |
2921 | ||
2922 | static void | |
eb4c3f4a | 2923 | set_trace_stop_notes (const char *args, int from_tty, |
f196051f SS |
2924 | struct cmd_list_element *c) |
2925 | { | |
2926 | int ret; | |
2927 | ||
2928 | ret = target_set_trace_notes (NULL, NULL, trace_stop_notes); | |
2929 | ||
2930 | if (!ret) | |
43011e52 | 2931 | warning (_("Target does not support trace notes, stop note ignored")); |
f196051f SS |
2932 | } |
2933 | ||
c906108c SS |
2934 | /* Convert the memory pointed to by mem into hex, placing result in buf. |
2935 | * Return a pointer to the last char put in buf (null) | |
2936 | * "stolen" from sparc-stub.c | |
2937 | */ | |
2938 | ||
c5aa993b | 2939 | static const char hexchars[] = "0123456789abcdef"; |
c906108c | 2940 | |
47b667de AC |
2941 | static char * |
2942 | mem2hex (gdb_byte *mem, char *buf, int count) | |
c906108c | 2943 | { |
47b667de | 2944 | gdb_byte ch; |
c906108c SS |
2945 | |
2946 | while (count-- > 0) | |
2947 | { | |
2948 | ch = *mem++; | |
2949 | ||
2950 | *buf++ = hexchars[ch >> 4]; | |
2951 | *buf++ = hexchars[ch & 0xf]; | |
2952 | } | |
2953 | ||
2954 | *buf = 0; | |
2955 | ||
2956 | return buf; | |
2957 | } | |
2958 | ||
c5aa993b | 2959 | int |
fba45db2 | 2960 | get_traceframe_number (void) |
c906108c | 2961 | { |
c5aa993b | 2962 | return traceframe_number; |
c906108c SS |
2963 | } |
2964 | ||
393fd4c3 YQ |
2965 | int |
2966 | get_tracepoint_number (void) | |
2967 | { | |
2968 | return tracepoint_number; | |
2969 | } | |
2970 | ||
06cd862c PA |
2971 | /* Make the traceframe NUM be the current trace frame. Does nothing |
2972 | if NUM is already current. */ | |
2973 | ||
2974 | void | |
e6e4e701 | 2975 | set_current_traceframe (int num) |
06cd862c PA |
2976 | { |
2977 | int newnum; | |
2978 | ||
2979 | if (traceframe_number == num) | |
2980 | { | |
2981 | /* Nothing to do. */ | |
2982 | return; | |
2983 | } | |
2984 | ||
2985 | newnum = target_trace_find (tfind_number, num, 0, 0, NULL); | |
2986 | ||
2987 | if (newnum != num) | |
2988 | warning (_("could not change traceframe")); | |
2989 | ||
8d735b87 | 2990 | set_traceframe_num (newnum); |
06cd862c PA |
2991 | |
2992 | /* Changing the traceframe changes our view of registers and of the | |
2993 | frame chain. */ | |
2994 | registers_changed (); | |
b3b9301e PA |
2995 | |
2996 | clear_traceframe_info (); | |
06cd862c PA |
2997 | } |
2998 | ||
6f14adc5 SM |
2999 | scoped_restore_current_traceframe::scoped_restore_current_traceframe () |
3000 | : m_traceframe_number (traceframe_number) | |
3001 | {} | |
00bf0b85 SS |
3002 | |
3003 | /* Given a number and address, return an uploaded tracepoint with that | |
3004 | number, creating if necessary. */ | |
3005 | ||
3006 | struct uploaded_tp * | |
3007 | get_uploaded_tp (int num, ULONGEST addr, struct uploaded_tp **utpp) | |
3008 | { | |
3009 | struct uploaded_tp *utp; | |
3010 | ||
3011 | for (utp = *utpp; utp; utp = utp->next) | |
3012 | if (utp->number == num && utp->addr == addr) | |
3013 | return utp; | |
8d749320 | 3014 | |
a18ba4e4 | 3015 | utp = new uploaded_tp; |
00bf0b85 SS |
3016 | utp->number = num; |
3017 | utp->addr = addr; | |
3018 | utp->next = *utpp; | |
3019 | *utpp = utp; | |
8d749320 | 3020 | |
00bf0b85 SS |
3021 | return utp; |
3022 | } | |
3023 | ||
7951c4eb | 3024 | void |
00bf0b85 SS |
3025 | free_uploaded_tps (struct uploaded_tp **utpp) |
3026 | { | |
3027 | struct uploaded_tp *next_one; | |
3028 | ||
3029 | while (*utpp) | |
3030 | { | |
3031 | next_one = (*utpp)->next; | |
a18ba4e4 | 3032 | delete *utpp; |
00bf0b85 SS |
3033 | *utpp = next_one; |
3034 | } | |
3035 | } | |
3036 | ||
3037 | /* Given a number and address, return an uploaded tracepoint with that | |
3038 | number, creating if necessary. */ | |
3039 | ||
393fd4c3 | 3040 | struct uploaded_tsv * |
00bf0b85 SS |
3041 | get_uploaded_tsv (int num, struct uploaded_tsv **utsvp) |
3042 | { | |
3043 | struct uploaded_tsv *utsv; | |
3044 | ||
3045 | for (utsv = *utsvp; utsv; utsv = utsv->next) | |
3046 | if (utsv->number == num) | |
3047 | return utsv; | |
8d749320 SM |
3048 | |
3049 | utsv = XCNEW (struct uploaded_tsv); | |
00bf0b85 SS |
3050 | utsv->number = num; |
3051 | utsv->next = *utsvp; | |
3052 | *utsvp = utsv; | |
8d749320 | 3053 | |
00bf0b85 SS |
3054 | return utsv; |
3055 | } | |
3056 | ||
7951c4eb | 3057 | void |
00bf0b85 SS |
3058 | free_uploaded_tsvs (struct uploaded_tsv **utsvp) |
3059 | { | |
3060 | struct uploaded_tsv *next_one; | |
3061 | ||
3062 | while (*utsvp) | |
3063 | { | |
3064 | next_one = (*utsvp)->next; | |
3065 | xfree (*utsvp); | |
3066 | *utsvp = next_one; | |
3067 | } | |
3068 | } | |
3069 | ||
4e5c165d HZ |
3070 | /* FIXME this function is heuristic and will miss the cases where the |
3071 | conditional is semantically identical but differs in whitespace, | |
3072 | such as "x == 0" vs "x==0". */ | |
3073 | ||
3074 | static int | |
3075 | cond_string_is_same (char *str1, char *str2) | |
3076 | { | |
3077 | if (str1 == NULL || str2 == NULL) | |
3078 | return (str1 == str2); | |
3079 | ||
3080 | return (strcmp (str1, str2) == 0); | |
3081 | } | |
3082 | ||
00bf0b85 SS |
3083 | /* Look for an existing tracepoint that seems similar enough to the |
3084 | uploaded one. Enablement isn't compared, because the user can | |
3085 | toggle that freely, and may have done so in anticipation of the | |
1e4d1764 | 3086 | next trace run. Return the location of matched tracepoint. */ |
00bf0b85 | 3087 | |
70221824 | 3088 | static struct bp_location * |
1e4d1764 | 3089 | find_matching_tracepoint_location (struct uploaded_tp *utp) |
00bf0b85 | 3090 | { |
00bf0b85 SS |
3091 | struct bp_location *loc; |
3092 | ||
f51e0e20 | 3093 | for (breakpoint *b : all_tracepoints ()) |
00bf0b85 | 3094 | { |
d9b3f62e PA |
3095 | struct tracepoint *t = (struct tracepoint *) b; |
3096 | ||
3097 | if (b->type == utp->type | |
00bf0b85 SS |
3098 | && t->step_count == utp->step |
3099 | && t->pass_count == utp->pass | |
67aa1f3c PA |
3100 | && cond_string_is_same (t->cond_string, |
3101 | utp->cond_string.get ()) | |
4e5c165d | 3102 | /* FIXME also test actions. */ |
00bf0b85 SS |
3103 | ) |
3104 | { | |
3105 | /* Scan the locations for an address match. */ | |
d9b3f62e | 3106 | for (loc = b->loc; loc; loc = loc->next) |
00bf0b85 SS |
3107 | { |
3108 | if (loc->address == utp->addr) | |
1e4d1764 | 3109 | return loc; |
00bf0b85 SS |
3110 | } |
3111 | } | |
3112 | } | |
3113 | return NULL; | |
3114 | } | |
3115 | ||
3116 | /* Given a list of tracepoints uploaded from a target, attempt to | |
3117 | match them up with existing tracepoints, and create new ones if not | |
3118 | found. */ | |
3119 | ||
3120 | void | |
3121 | merge_uploaded_tracepoints (struct uploaded_tp **uploaded_tps) | |
3122 | { | |
3123 | struct uploaded_tp *utp; | |
f2a8bc8a | 3124 | /* A set of tracepoints which are modified. */ |
f51e0e20 | 3125 | std::vector<breakpoint *> modified_tp; |
00bf0b85 SS |
3126 | |
3127 | /* Look for GDB tracepoints that match up with our uploaded versions. */ | |
3128 | for (utp = *uploaded_tps; utp; utp = utp->next) | |
3129 | { | |
1e4d1764 YQ |
3130 | struct bp_location *loc; |
3131 | struct tracepoint *t; | |
3132 | ||
3133 | loc = find_matching_tracepoint_location (utp); | |
3134 | if (loc) | |
3135 | { | |
f2a8bc8a YQ |
3136 | int found = 0; |
3137 | ||
1e4d1764 YQ |
3138 | /* Mark this location as already inserted. */ |
3139 | loc->inserted = 1; | |
3140 | t = (struct tracepoint *) loc->owner; | |
3141 | printf_filtered (_("Assuming tracepoint %d is same " | |
3142 | "as target's tracepoint %d at %s.\n"), | |
3143 | loc->owner->number, utp->number, | |
3144 | paddress (loc->gdbarch, utp->addr)); | |
f2a8bc8a YQ |
3145 | |
3146 | /* The tracepoint LOC->owner was modified (the location LOC | |
3147 | was marked as inserted in the target). Save it in | |
3148 | MODIFIED_TP if not there yet. The 'breakpoint-modified' | |
3149 | observers will be notified later once for each tracepoint | |
3150 | saved in MODIFIED_TP. */ | |
f51e0e20 | 3151 | for (breakpoint *b : modified_tp) |
f2a8bc8a YQ |
3152 | if (b == loc->owner) |
3153 | { | |
3154 | found = 1; | |
3155 | break; | |
3156 | } | |
3157 | if (!found) | |
f51e0e20 | 3158 | modified_tp.push_back (loc->owner); |
1e4d1764 | 3159 | } |
00bf0b85 SS |
3160 | else |
3161 | { | |
3162 | t = create_tracepoint_from_upload (utp); | |
3163 | if (t) | |
3e43a32a MS |
3164 | printf_filtered (_("Created tracepoint %d for " |
3165 | "target's tracepoint %d at %s.\n"), | |
c1fc2657 | 3166 | t->number, utp->number, |
3e43a32a | 3167 | paddress (get_current_arch (), utp->addr)); |
00bf0b85 | 3168 | else |
3e43a32a MS |
3169 | printf_filtered (_("Failed to create tracepoint for target's " |
3170 | "tracepoint %d at %s, skipping it.\n"), | |
3171 | utp->number, | |
3172 | paddress (get_current_arch (), utp->addr)); | |
00bf0b85 SS |
3173 | } |
3174 | /* Whether found or created, record the number used by the | |
3175 | target, to help with mapping target tracepoints back to their | |
3176 | counterparts here. */ | |
3177 | if (t) | |
3178 | t->number_on_target = utp->number; | |
3179 | } | |
3180 | ||
f2a8bc8a YQ |
3181 | /* Notify 'breakpoint-modified' observer that at least one of B's |
3182 | locations was changed. */ | |
f51e0e20 | 3183 | for (breakpoint *b : modified_tp) |
76727919 | 3184 | gdb::observers::breakpoint_modified.notify (b); |
f2a8bc8a | 3185 | |
00bf0b85 SS |
3186 | free_uploaded_tps (uploaded_tps); |
3187 | } | |
3188 | ||
3189 | /* Trace state variables don't have much to identify them beyond their | |
3190 | name, so just use that to detect matches. */ | |
3191 | ||
70221824 | 3192 | static struct trace_state_variable * |
00bf0b85 SS |
3193 | find_matching_tsv (struct uploaded_tsv *utsv) |
3194 | { | |
3195 | if (!utsv->name) | |
3196 | return NULL; | |
3197 | ||
3198 | return find_trace_state_variable (utsv->name); | |
3199 | } | |
3200 | ||
70221824 | 3201 | static struct trace_state_variable * |
00bf0b85 SS |
3202 | create_tsv_from_upload (struct uploaded_tsv *utsv) |
3203 | { | |
3204 | const char *namebase; | |
8abcee91 | 3205 | std::string buf; |
00bf0b85 SS |
3206 | int try_num = 0; |
3207 | struct trace_state_variable *tsv; | |
3208 | ||
3209 | if (utsv->name) | |
3210 | { | |
3211 | namebase = utsv->name; | |
8abcee91 | 3212 | buf = namebase; |
00bf0b85 SS |
3213 | } |
3214 | else | |
3215 | { | |
3216 | namebase = "__tsv"; | |
8abcee91 | 3217 | buf = string_printf ("%s_%d", namebase, try_num++); |
00bf0b85 SS |
3218 | } |
3219 | ||
3220 | /* Fish for a name that is not in use. */ | |
c378eb4e | 3221 | /* (should check against all internal vars?) */ |
8abcee91 TT |
3222 | while (find_trace_state_variable (buf.c_str ())) |
3223 | buf = string_printf ("%s_%d", namebase, try_num++); | |
00bf0b85 SS |
3224 | |
3225 | /* We have an available name, create the variable. */ | |
8abcee91 | 3226 | tsv = create_trace_state_variable (buf.c_str ()); |
00bf0b85 SS |
3227 | tsv->initial_value = utsv->initial_value; |
3228 | tsv->builtin = utsv->builtin; | |
3229 | ||
76727919 | 3230 | gdb::observers::tsv_created.notify (tsv); |
bb25a15c | 3231 | |
00bf0b85 SS |
3232 | return tsv; |
3233 | } | |
3234 | ||
3235 | /* Given a list of uploaded trace state variables, try to match them | |
3236 | up with existing variables, or create additional ones. */ | |
3237 | ||
3238 | void | |
3239 | merge_uploaded_trace_state_variables (struct uploaded_tsv **uploaded_tsvs) | |
3240 | { | |
00bf0b85 | 3241 | struct uploaded_tsv *utsv; |
00bf0b85 SS |
3242 | int highest; |
3243 | ||
3244 | /* Most likely some numbers will have to be reassigned as part of | |
3245 | the merge, so clear them all in anticipation. */ | |
c252925c SM |
3246 | for (trace_state_variable &tsv : tvariables) |
3247 | tsv.number = 0; | |
00bf0b85 SS |
3248 | |
3249 | for (utsv = *uploaded_tsvs; utsv; utsv = utsv->next) | |
3250 | { | |
b926417a | 3251 | struct trace_state_variable *tsv = find_matching_tsv (utsv); |
00bf0b85 | 3252 | if (tsv) |
417b5110 DJ |
3253 | { |
3254 | if (info_verbose) | |
3e43a32a MS |
3255 | printf_filtered (_("Assuming trace state variable $%s " |
3256 | "is same as target's variable %d.\n"), | |
c252925c | 3257 | tsv->name.c_str (), utsv->number); |
417b5110 | 3258 | } |
00bf0b85 SS |
3259 | else |
3260 | { | |
3261 | tsv = create_tsv_from_upload (utsv); | |
417b5110 | 3262 | if (info_verbose) |
3e43a32a MS |
3263 | printf_filtered (_("Created trace state variable " |
3264 | "$%s for target's variable %d.\n"), | |
c252925c | 3265 | tsv->name.c_str (), utsv->number); |
00bf0b85 SS |
3266 | } |
3267 | /* Give precedence to numberings that come from the target. */ | |
3268 | if (tsv) | |
3269 | tsv->number = utsv->number; | |
3270 | } | |
3271 | ||
3272 | /* Renumber everything that didn't get a target-assigned number. */ | |
3273 | highest = 0; | |
c252925c SM |
3274 | for (const trace_state_variable &tsv : tvariables) |
3275 | highest = std::max (tsv.number, highest); | |
00bf0b85 SS |
3276 | |
3277 | ++highest; | |
c252925c SM |
3278 | for (trace_state_variable &tsv : tvariables) |
3279 | if (tsv.number == 0) | |
3280 | tsv.number = highest++; | |
00bf0b85 SS |
3281 | |
3282 | free_uploaded_tsvs (uploaded_tsvs); | |
3283 | } | |
3284 | ||
00bf0b85 SS |
3285 | /* Parse the part of trace status syntax that is shared between |
3286 | the remote protocol and the trace file reader. */ | |
3287 | ||
00bf0b85 | 3288 | void |
256642e8 | 3289 | parse_trace_status (const char *line, struct trace_status *ts) |
00bf0b85 | 3290 | { |
256642e8 | 3291 | const char *p = line, *p1, *p2, *p3, *p_temp; |
f196051f | 3292 | int end; |
00bf0b85 SS |
3293 | ULONGEST val; |
3294 | ||
3295 | ts->running_known = 1; | |
3296 | ts->running = (*p++ == '1'); | |
3297 | ts->stop_reason = trace_stop_reason_unknown; | |
f196051f SS |
3298 | xfree (ts->stop_desc); |
3299 | ts->stop_desc = NULL; | |
4daf5ac0 SS |
3300 | ts->traceframe_count = -1; |
3301 | ts->traceframes_created = -1; | |
3302 | ts->buffer_free = -1; | |
3303 | ts->buffer_size = -1; | |
33da3f1c SS |
3304 | ts->disconnected_tracing = 0; |
3305 | ts->circular_buffer = 0; | |
f196051f SS |
3306 | xfree (ts->user_name); |
3307 | ts->user_name = NULL; | |
3308 | xfree (ts->notes); | |
3309 | ts->notes = NULL; | |
3310 | ts->start_time = ts->stop_time = 0; | |
4daf5ac0 | 3311 | |
00bf0b85 SS |
3312 | while (*p++) |
3313 | { | |
3314 | p1 = strchr (p, ':'); | |
3315 | if (p1 == NULL) | |
3316 | error (_("Malformed trace status, at %s\n\ | |
3317 | Status line: '%s'\n"), p, line); | |
f196051f SS |
3318 | p3 = strchr (p, ';'); |
3319 | if (p3 == NULL) | |
3320 | p3 = p + strlen (p); | |
00bf0b85 SS |
3321 | if (strncmp (p, stop_reason_names[trace_buffer_full], p1 - p) == 0) |
3322 | { | |
3323 | p = unpack_varlen_hex (++p1, &val); | |
3324 | ts->stop_reason = trace_buffer_full; | |
3325 | } | |
3326 | else if (strncmp (p, stop_reason_names[trace_never_run], p1 - p) == 0) | |
3327 | { | |
3328 | p = unpack_varlen_hex (++p1, &val); | |
3329 | ts->stop_reason = trace_never_run; | |
3330 | } | |
3e43a32a MS |
3331 | else if (strncmp (p, stop_reason_names[tracepoint_passcount], |
3332 | p1 - p) == 0) | |
00bf0b85 SS |
3333 | { |
3334 | p = unpack_varlen_hex (++p1, &val); | |
3335 | ts->stop_reason = tracepoint_passcount; | |
3336 | ts->stopping_tracepoint = val; | |
3337 | } | |
e5a873b7 | 3338 | else if (strncmp (p, stop_reason_names[trace_stop_command], p1 - p) == 0) |
00bf0b85 | 3339 | { |
f196051f SS |
3340 | p2 = strchr (++p1, ':'); |
3341 | if (!p2 || p2 > p3) | |
3342 | { | |
3343 | /*older style*/ | |
3344 | p2 = p1; | |
3345 | } | |
3346 | else if (p2 != p1) | |
3347 | { | |
224c3ddb | 3348 | ts->stop_desc = (char *) xmalloc (strlen (line)); |
bc20a4af | 3349 | end = hex2bin (p1, (gdb_byte *) ts->stop_desc, (p2 - p1) / 2); |
f196051f SS |
3350 | ts->stop_desc[end] = '\0'; |
3351 | } | |
3352 | else | |
3353 | ts->stop_desc = xstrdup (""); | |
3354 | ||
3355 | p = unpack_varlen_hex (++p2, &val); | |
e5a873b7 | 3356 | ts->stop_reason = trace_stop_command; |
00bf0b85 | 3357 | } |
33da3f1c SS |
3358 | else if (strncmp (p, stop_reason_names[trace_disconnected], p1 - p) == 0) |
3359 | { | |
3360 | p = unpack_varlen_hex (++p1, &val); | |
3361 | ts->stop_reason = trace_disconnected; | |
3362 | } | |
6c28cbf2 SS |
3363 | else if (strncmp (p, stop_reason_names[tracepoint_error], p1 - p) == 0) |
3364 | { | |
3365 | p2 = strchr (++p1, ':'); | |
3366 | if (p2 != p1) | |
3367 | { | |
224c3ddb | 3368 | ts->stop_desc = (char *) xmalloc ((p2 - p1) / 2 + 1); |
bc20a4af | 3369 | end = hex2bin (p1, (gdb_byte *) ts->stop_desc, (p2 - p1) / 2); |
f196051f | 3370 | ts->stop_desc[end] = '\0'; |
6c28cbf2 | 3371 | } |
a609a0c8 | 3372 | else |
f196051f | 3373 | ts->stop_desc = xstrdup (""); |
a609a0c8 | 3374 | |
6c28cbf2 SS |
3375 | p = unpack_varlen_hex (++p2, &val); |
3376 | ts->stopping_tracepoint = val; | |
3377 | ts->stop_reason = tracepoint_error; | |
3378 | } | |
4daf5ac0 | 3379 | else if (strncmp (p, "tframes", p1 - p) == 0) |
00bf0b85 SS |
3380 | { |
3381 | p = unpack_varlen_hex (++p1, &val); | |
3382 | ts->traceframe_count = val; | |
3383 | } | |
4daf5ac0 SS |
3384 | else if (strncmp (p, "tcreated", p1 - p) == 0) |
3385 | { | |
3386 | p = unpack_varlen_hex (++p1, &val); | |
3387 | ts->traceframes_created = val; | |
3388 | } | |
3389 | else if (strncmp (p, "tfree", p1 - p) == 0) | |
00bf0b85 SS |
3390 | { |
3391 | p = unpack_varlen_hex (++p1, &val); | |
3392 | ts->buffer_free = val; | |
3393 | } | |
4daf5ac0 SS |
3394 | else if (strncmp (p, "tsize", p1 - p) == 0) |
3395 | { | |
3396 | p = unpack_varlen_hex (++p1, &val); | |
3397 | ts->buffer_size = val; | |
3398 | } | |
33da3f1c SS |
3399 | else if (strncmp (p, "disconn", p1 - p) == 0) |
3400 | { | |
3401 | p = unpack_varlen_hex (++p1, &val); | |
3402 | ts->disconnected_tracing = val; | |
3403 | } | |
3404 | else if (strncmp (p, "circular", p1 - p) == 0) | |
3405 | { | |
3406 | p = unpack_varlen_hex (++p1, &val); | |
3407 | ts->circular_buffer = val; | |
3408 | } | |
f196051f SS |
3409 | else if (strncmp (p, "starttime", p1 - p) == 0) |
3410 | { | |
3411 | p = unpack_varlen_hex (++p1, &val); | |
3412 | ts->start_time = val; | |
3413 | } | |
3414 | else if (strncmp (p, "stoptime", p1 - p) == 0) | |
3415 | { | |
3416 | p = unpack_varlen_hex (++p1, &val); | |
3417 | ts->stop_time = val; | |
3418 | } | |
3419 | else if (strncmp (p, "username", p1 - p) == 0) | |
3420 | { | |
3421 | ++p1; | |
224c3ddb | 3422 | ts->user_name = (char *) xmalloc (strlen (p) / 2); |
bc20a4af | 3423 | end = hex2bin (p1, (gdb_byte *) ts->user_name, (p3 - p1) / 2); |
f196051f SS |
3424 | ts->user_name[end] = '\0'; |
3425 | p = p3; | |
3426 | } | |
3427 | else if (strncmp (p, "notes", p1 - p) == 0) | |
3428 | { | |
3429 | ++p1; | |
224c3ddb | 3430 | ts->notes = (char *) xmalloc (strlen (p) / 2); |
bc20a4af | 3431 | end = hex2bin (p1, (gdb_byte *) ts->notes, (p3 - p1) / 2); |
f196051f SS |
3432 | ts->notes[end] = '\0'; |
3433 | p = p3; | |
3434 | } | |
00bf0b85 SS |
3435 | else |
3436 | { | |
3437 | /* Silently skip unknown optional info. */ | |
3438 | p_temp = strchr (p1 + 1, ';'); | |
3439 | if (p_temp) | |
3440 | p = p_temp; | |
3441 | else | |
3442 | /* Must be at the end. */ | |
3443 | break; | |
3444 | } | |
3445 | } | |
3446 | } | |
3447 | ||
f196051f | 3448 | void |
256642e8 | 3449 | parse_tracepoint_status (const char *p, struct breakpoint *bp, |
f196051f SS |
3450 | struct uploaded_tp *utp) |
3451 | { | |
3452 | ULONGEST uval; | |
3453 | struct tracepoint *tp = (struct tracepoint *) bp; | |
3454 | ||
3455 | p = unpack_varlen_hex (p, &uval); | |
3456 | if (tp) | |
c1fc2657 | 3457 | tp->hit_count += uval; |
f196051f SS |
3458 | else |
3459 | utp->hit_count += uval; | |
3460 | p = unpack_varlen_hex (p + 1, &uval); | |
3461 | if (tp) | |
3462 | tp->traceframe_usage += uval; | |
3463 | else | |
3464 | utp->traceframe_usage += uval; | |
3465 | /* Ignore any extra, allowing for future extensions. */ | |
3466 | } | |
3467 | ||
409873ef SS |
3468 | /* Given a line of text defining a part of a tracepoint, parse it into |
3469 | an "uploaded tracepoint". */ | |
00bf0b85 SS |
3470 | |
3471 | void | |
256642e8 | 3472 | parse_tracepoint_definition (const char *line, struct uploaded_tp **utpp) |
00bf0b85 | 3473 | { |
256642e8 | 3474 | const char *p; |
00bf0b85 | 3475 | char piece; |
409873ef | 3476 | ULONGEST num, addr, step, pass, orig_size, xlen, start; |
2a2287c7 | 3477 | int enabled, end; |
00bf0b85 | 3478 | enum bptype type; |
256642e8 | 3479 | const char *srctype; |
67aa1f3c | 3480 | char *buf; |
00bf0b85 SS |
3481 | struct uploaded_tp *utp = NULL; |
3482 | ||
3483 | p = line; | |
3484 | /* Both tracepoint and action definitions start with the same number | |
3485 | and address sequence. */ | |
3486 | piece = *p++; | |
3487 | p = unpack_varlen_hex (p, &num); | |
3488 | p++; /* skip a colon */ | |
3489 | p = unpack_varlen_hex (p, &addr); | |
3490 | p++; /* skip a colon */ | |
3491 | if (piece == 'T') | |
3492 | { | |
67aa1f3c PA |
3493 | gdb::unique_xmalloc_ptr<char[]> cond; |
3494 | ||
00bf0b85 SS |
3495 | enabled = (*p++ == 'E'); |
3496 | p++; /* skip a colon */ | |
3497 | p = unpack_varlen_hex (p, &step); | |
3498 | p++; /* skip a colon */ | |
3499 | p = unpack_varlen_hex (p, &pass); | |
3500 | type = bp_tracepoint; | |
00bf0b85 SS |
3501 | /* Thumb through optional fields. */ |
3502 | while (*p == ':') | |
3503 | { | |
3504 | p++; /* skip a colon */ | |
3505 | if (*p == 'F') | |
3506 | { | |
3507 | type = bp_fast_tracepoint; | |
3508 | p++; | |
3509 | p = unpack_varlen_hex (p, &orig_size); | |
3510 | } | |
0fb4aa4b PA |
3511 | else if (*p == 'S') |
3512 | { | |
3513 | type = bp_static_tracepoint; | |
3514 | p++; | |
3515 | } | |
00bf0b85 SS |
3516 | else if (*p == 'X') |
3517 | { | |
3518 | p++; | |
3519 | p = unpack_varlen_hex (p, &xlen); | |
3520 | p++; /* skip a comma */ | |
67aa1f3c PA |
3521 | cond.reset ((char *) xmalloc (2 * xlen + 1)); |
3522 | strncpy (&cond[0], p, 2 * xlen); | |
00bf0b85 SS |
3523 | cond[2 * xlen] = '\0'; |
3524 | p += 2 * xlen; | |
3525 | } | |
3526 | else | |
3e43a32a MS |
3527 | warning (_("Unrecognized char '%c' in tracepoint " |
3528 | "definition, skipping rest"), *p); | |
00bf0b85 SS |
3529 | } |
3530 | utp = get_uploaded_tp (num, addr, utpp); | |
3531 | utp->type = type; | |
3532 | utp->enabled = enabled; | |
3533 | utp->step = step; | |
3534 | utp->pass = pass; | |
67aa1f3c | 3535 | utp->cond = std::move (cond); |
00bf0b85 SS |
3536 | } |
3537 | else if (piece == 'A') | |
3538 | { | |
3539 | utp = get_uploaded_tp (num, addr, utpp); | |
67aa1f3c | 3540 | utp->actions.emplace_back (xstrdup (p)); |
00bf0b85 SS |
3541 | } |
3542 | else if (piece == 'S') | |
3543 | { | |
3544 | utp = get_uploaded_tp (num, addr, utpp); | |
67aa1f3c | 3545 | utp->step_actions.emplace_back (xstrdup (p)); |
00bf0b85 | 3546 | } |
409873ef SS |
3547 | else if (piece == 'Z') |
3548 | { | |
3549 | /* Parse a chunk of source form definition. */ | |
3550 | utp = get_uploaded_tp (num, addr, utpp); | |
3551 | srctype = p; | |
3552 | p = strchr (p, ':'); | |
3553 | p++; /* skip a colon */ | |
3554 | p = unpack_varlen_hex (p, &start); | |
3555 | p++; /* skip a colon */ | |
3556 | p = unpack_varlen_hex (p, &xlen); | |
3557 | p++; /* skip a colon */ | |
3558 | ||
224c3ddb | 3559 | buf = (char *) alloca (strlen (line)); |
409873ef SS |
3560 | |
3561 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3562 | buf[end] = '\0'; | |
3563 | ||
61012eef | 3564 | if (startswith (srctype, "at:")) |
67aa1f3c | 3565 | utp->at_string.reset (xstrdup (buf)); |
61012eef | 3566 | else if (startswith (srctype, "cond:")) |
67aa1f3c | 3567 | utp->cond_string.reset (xstrdup (buf)); |
61012eef | 3568 | else if (startswith (srctype, "cmd:")) |
67aa1f3c | 3569 | utp->cmd_strings.emplace_back (xstrdup (buf)); |
409873ef | 3570 | } |
f196051f SS |
3571 | else if (piece == 'V') |
3572 | { | |
3573 | utp = get_uploaded_tp (num, addr, utpp); | |
3574 | ||
3575 | parse_tracepoint_status (p, NULL, utp); | |
3576 | } | |
00bf0b85 SS |
3577 | else |
3578 | { | |
409873ef SS |
3579 | /* Don't error out, the target might be sending us optional |
3580 | info that we don't care about. */ | |
3581 | warning (_("Unrecognized tracepoint piece '%c', ignoring"), piece); | |
00bf0b85 SS |
3582 | } |
3583 | } | |
3584 | ||
3585 | /* Convert a textual description of a trace state variable into an | |
3586 | uploaded object. */ | |
3587 | ||
3588 | void | |
256642e8 | 3589 | parse_tsv_definition (const char *line, struct uploaded_tsv **utsvp) |
00bf0b85 | 3590 | { |
256642e8 PA |
3591 | const char *p; |
3592 | char *buf; | |
00bf0b85 SS |
3593 | ULONGEST num, initval, builtin; |
3594 | int end; | |
3595 | struct uploaded_tsv *utsv = NULL; | |
3596 | ||
224c3ddb | 3597 | buf = (char *) alloca (strlen (line)); |
00bf0b85 SS |
3598 | |
3599 | p = line; | |
3600 | p = unpack_varlen_hex (p, &num); | |
3601 | p++; /* skip a colon */ | |
3602 | p = unpack_varlen_hex (p, &initval); | |
3603 | p++; /* skip a colon */ | |
3604 | p = unpack_varlen_hex (p, &builtin); | |
3605 | p++; /* skip a colon */ | |
3606 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3607 | buf[end] = '\0'; | |
3608 | ||
3609 | utsv = get_uploaded_tsv (num, utsvp); | |
3610 | utsv->initial_value = initval; | |
3611 | utsv->builtin = builtin; | |
3612 | utsv->name = xstrdup (buf); | |
3613 | } | |
3614 | ||
0fb4aa4b PA |
3615 | /* Given a line of text defining a static tracepoint marker, parse it |
3616 | into a "static tracepoint marker" object. Throws an error is | |
3617 | parsing fails. If PP is non-null, it points to one past the end of | |
3618 | the parsed marker definition. */ | |
3619 | ||
3620 | void | |
256642e8 | 3621 | parse_static_tracepoint_marker_definition (const char *line, const char **pp, |
5d9310c4 | 3622 | static_tracepoint_marker *marker) |
0fb4aa4b | 3623 | { |
256642e8 | 3624 | const char *p, *endp; |
0fb4aa4b | 3625 | ULONGEST addr; |
0fb4aa4b PA |
3626 | |
3627 | p = line; | |
3628 | p = unpack_varlen_hex (p, &addr); | |
3629 | p++; /* skip a colon */ | |
3630 | ||
f5656ead | 3631 | marker->gdbarch = target_gdbarch (); |
0fb4aa4b PA |
3632 | marker->address = (CORE_ADDR) addr; |
3633 | ||
3634 | endp = strchr (p, ':'); | |
3635 | if (endp == NULL) | |
74232302 | 3636 | error (_("bad marker definition: %s"), line); |
0fb4aa4b | 3637 | |
5d9310c4 | 3638 | marker->str_id = hex2str (p, (endp - p) / 2); |
0fb4aa4b | 3639 | |
5d9310c4 SM |
3640 | p = endp; |
3641 | p++; /* skip a colon */ | |
0fb4aa4b | 3642 | |
62c222b6 SM |
3643 | /* This definition may be followed by another one, separated by a comma. */ |
3644 | int hex_len; | |
3645 | endp = strchr (p, ','); | |
3646 | if (endp != nullptr) | |
3647 | hex_len = endp - p; | |
3648 | else | |
3649 | hex_len = strlen (p); | |
3650 | ||
5d9310c4 | 3651 | marker->extra = hex2str (p, hex_len / 2); |
0fb4aa4b | 3652 | |
5d9310c4 | 3653 | if (pp != nullptr) |
62c222b6 | 3654 | *pp = p + hex_len; |
0fb4aa4b PA |
3655 | } |
3656 | ||
0fb4aa4b PA |
3657 | /* Print MARKER to gdb_stdout. */ |
3658 | ||
3659 | static void | |
3660 | print_one_static_tracepoint_marker (int count, | |
5d9310c4 | 3661 | const static_tracepoint_marker &marker) |
0fb4aa4b | 3662 | { |
0fb4aa4b PA |
3663 | struct symbol *sym; |
3664 | ||
3665 | char wrap_indent[80]; | |
3666 | char extra_field_indent[80]; | |
79a45e25 | 3667 | struct ui_out *uiout = current_uiout; |
0fb4aa4b | 3668 | |
51abb421 | 3669 | symtab_and_line sal; |
5d9310c4 | 3670 | sal.pc = marker.address; |
0fb4aa4b | 3671 | |
f51e0e20 TT |
3672 | std::vector<breakpoint *> tracepoints |
3673 | = static_tracepoints_here (marker.address); | |
0fb4aa4b | 3674 | |
a14a62dd | 3675 | ui_out_emit_tuple tuple_emitter (uiout, "marker"); |
0fb4aa4b PA |
3676 | |
3677 | /* A counter field to help readability. This is not a stable | |
3678 | identifier! */ | |
381befee | 3679 | uiout->field_signed ("count", count); |
0fb4aa4b | 3680 | |
5d9310c4 | 3681 | uiout->field_string ("marker-id", marker.str_id.c_str ()); |
0fb4aa4b | 3682 | |
112e8700 | 3683 | uiout->field_fmt ("enabled", "%c", |
f51e0e20 | 3684 | !tracepoints.empty () ? 'y' : 'n'); |
112e8700 | 3685 | uiout->spaces (2); |
0fb4aa4b PA |
3686 | |
3687 | strcpy (wrap_indent, " "); | |
3688 | ||
5d9310c4 | 3689 | if (gdbarch_addr_bit (marker.gdbarch) <= 32) |
0fb4aa4b PA |
3690 | strcat (wrap_indent, " "); |
3691 | else | |
3692 | strcat (wrap_indent, " "); | |
3693 | ||
3694 | strcpy (extra_field_indent, " "); | |
3695 | ||
5d9310c4 | 3696 | uiout->field_core_addr ("addr", marker.gdbarch, marker.address); |
0fb4aa4b | 3697 | |
5d9310c4 SM |
3698 | sal = find_pc_line (marker.address, 0); |
3699 | sym = find_pc_sect_function (marker.address, NULL); | |
0fb4aa4b PA |
3700 | if (sym) |
3701 | { | |
112e8700 | 3702 | uiout->text ("in "); |
987012b8 | 3703 | uiout->field_string ("func", sym->print_name (), |
e43b10e1 | 3704 | function_name_style.style ()); |
112e8700 SM |
3705 | uiout->wrap_hint (wrap_indent); |
3706 | uiout->text (" at "); | |
0fb4aa4b PA |
3707 | } |
3708 | else | |
112e8700 | 3709 | uiout->field_skip ("func"); |
0fb4aa4b PA |
3710 | |
3711 | if (sal.symtab != NULL) | |
3712 | { | |
112e8700 | 3713 | uiout->field_string ("file", |
cbe56571 | 3714 | symtab_to_filename_for_display (sal.symtab), |
e43b10e1 | 3715 | file_name_style.style ()); |
112e8700 | 3716 | uiout->text (":"); |
0fb4aa4b | 3717 | |
112e8700 | 3718 | if (uiout->is_mi_like_p ()) |
0fb4aa4b | 3719 | { |
0b0865da | 3720 | const char *fullname = symtab_to_fullname (sal.symtab); |
0fb4aa4b | 3721 | |
112e8700 | 3722 | uiout->field_string ("fullname", fullname); |
0fb4aa4b PA |
3723 | } |
3724 | else | |
112e8700 | 3725 | uiout->field_skip ("fullname"); |
0fb4aa4b | 3726 | |
381befee | 3727 | uiout->field_signed ("line", sal.line); |
0fb4aa4b PA |
3728 | } |
3729 | else | |
3730 | { | |
112e8700 SM |
3731 | uiout->field_skip ("fullname"); |
3732 | uiout->field_skip ("line"); | |
0fb4aa4b PA |
3733 | } |
3734 | ||
112e8700 SM |
3735 | uiout->text ("\n"); |
3736 | uiout->text (extra_field_indent); | |
3737 | uiout->text (_("Data: \"")); | |
5d9310c4 | 3738 | uiout->field_string ("extra-data", marker.extra.c_str ()); |
112e8700 | 3739 | uiout->text ("\"\n"); |
0fb4aa4b | 3740 | |
f51e0e20 | 3741 | if (!tracepoints.empty ()) |
0fb4aa4b | 3742 | { |
0fb4aa4b | 3743 | int ix; |
0fb4aa4b | 3744 | |
a14a62dd | 3745 | { |
b926417a | 3746 | ui_out_emit_tuple inner_tuple_emitter (uiout, "tracepoints-at"); |
a14a62dd TT |
3747 | |
3748 | uiout->text (extra_field_indent); | |
3749 | uiout->text (_("Probed by static tracepoints: ")); | |
f51e0e20 | 3750 | for (ix = 0; ix < tracepoints.size (); ix++) |
a14a62dd TT |
3751 | { |
3752 | if (ix > 0) | |
3753 | uiout->text (", "); | |
3754 | uiout->text ("#"); | |
381befee | 3755 | uiout->field_signed ("tracepoint-id", tracepoints[ix]->number); |
a14a62dd TT |
3756 | } |
3757 | } | |
0fb4aa4b | 3758 | |
112e8700 | 3759 | if (uiout->is_mi_like_p ()) |
381befee | 3760 | uiout->field_signed ("number-of-tracepoints", tracepoints.size ()); |
0fb4aa4b | 3761 | else |
112e8700 | 3762 | uiout->text ("\n"); |
0fb4aa4b | 3763 | } |
0fb4aa4b PA |
3764 | } |
3765 | ||
3766 | static void | |
1d12d88f | 3767 | info_static_tracepoint_markers_command (const char *arg, int from_tty) |
0fb4aa4b | 3768 | { |
79a45e25 | 3769 | struct ui_out *uiout = current_uiout; |
5d9310c4 SM |
3770 | std::vector<static_tracepoint_marker> markers |
3771 | = target_static_tracepoint_markers_by_strid (NULL); | |
0fb4aa4b | 3772 | |
d1feda86 YQ |
3773 | /* We don't have to check target_can_use_agent and agent's capability on |
3774 | static tracepoint here, in order to be compatible with older GDBserver. | |
3775 | We don't check USE_AGENT is true or not, because static tracepoints | |
3776 | don't work without in-process agent, so we don't bother users to type | |
3777 | `set agent on' when to use static tracepoint. */ | |
3778 | ||
4a2b031d TT |
3779 | ui_out_emit_table table_emitter (uiout, 5, -1, |
3780 | "StaticTracepointMarkersTable"); | |
0fb4aa4b | 3781 | |
112e8700 | 3782 | uiout->table_header (7, ui_left, "counter", "Cnt"); |
0fb4aa4b | 3783 | |
112e8700 | 3784 | uiout->table_header (40, ui_left, "marker-id", "ID"); |
0fb4aa4b | 3785 | |
112e8700 | 3786 | uiout->table_header (3, ui_left, "enabled", "Enb"); |
f5656ead | 3787 | if (gdbarch_addr_bit (target_gdbarch ()) <= 32) |
112e8700 | 3788 | uiout->table_header (10, ui_left, "addr", "Address"); |
0fb4aa4b | 3789 | else |
112e8700 SM |
3790 | uiout->table_header (18, ui_left, "addr", "Address"); |
3791 | uiout->table_header (40, ui_noalign, "what", "What"); | |
0fb4aa4b | 3792 | |
112e8700 | 3793 | uiout->table_body (); |
0fb4aa4b | 3794 | |
5d9310c4 SM |
3795 | for (int i = 0; i < markers.size (); i++) |
3796 | print_one_static_tracepoint_marker (i + 1, markers[i]); | |
0fb4aa4b PA |
3797 | } |
3798 | ||
3799 | /* The $_sdata convenience variable is a bit special. We don't know | |
3800 | for sure type of the value until we actually have a chance to fetch | |
3801 | the data --- the size of the object depends on what has been | |
3802 | collected. We solve this by making $_sdata be an internalvar that | |
3803 | creates a new value on access. */ | |
3804 | ||
3805 | /* Return a new value with the correct type for the sdata object of | |
3806 | the current trace frame. Return a void value if there's no object | |
3807 | available. */ | |
3808 | ||
3809 | static struct value * | |
22d2b532 SDJ |
3810 | sdata_make_value (struct gdbarch *gdbarch, struct internalvar *var, |
3811 | void *ignore) | |
0fb4aa4b | 3812 | { |
0fb4aa4b | 3813 | /* We need to read the whole object before we know its size. */ |
9018be22 | 3814 | gdb::optional<gdb::byte_vector> buf |
8b88a78e | 3815 | = target_read_alloc (current_top_target (), TARGET_OBJECT_STATIC_TRACE_DATA, |
9018be22 SM |
3816 | NULL); |
3817 | if (buf) | |
0fb4aa4b PA |
3818 | { |
3819 | struct value *v; | |
3820 | struct type *type; | |
3821 | ||
3822 | type = init_vector_type (builtin_type (gdbarch)->builtin_true_char, | |
9018be22 | 3823 | buf->size ()); |
0fb4aa4b | 3824 | v = allocate_value (type); |
9018be22 | 3825 | memcpy (value_contents_raw (v), buf->data (), buf->size ()); |
0fb4aa4b PA |
3826 | return v; |
3827 | } | |
3828 | else | |
3829 | return allocate_value (builtin_type (gdbarch)->builtin_void); | |
3830 | } | |
3831 | ||
b3b9301e PA |
3832 | #if !defined(HAVE_LIBEXPAT) |
3833 | ||
86766165 | 3834 | struct std::unique_ptr<traceframe_info> |
b3b9301e PA |
3835 | parse_traceframe_info (const char *tframe_info) |
3836 | { | |
3837 | static int have_warned; | |
3838 | ||
3839 | if (!have_warned) | |
3840 | { | |
3841 | have_warned = 1; | |
3842 | warning (_("Can not parse XML trace frame info; XML support " | |
3843 | "was disabled at compile time")); | |
3844 | } | |
3845 | ||
3846 | return NULL; | |
3847 | } | |
3848 | ||
3849 | #else /* HAVE_LIBEXPAT */ | |
3850 | ||
3851 | #include "xml-support.h" | |
3852 | ||
3853 | /* Handle the start of a <memory> element. */ | |
3854 | ||
3855 | static void | |
3856 | traceframe_info_start_memory (struct gdb_xml_parser *parser, | |
3857 | const struct gdb_xml_element *element, | |
4d0fdd9b SM |
3858 | void *user_data, |
3859 | std::vector<gdb_xml_value> &attributes) | |
b3b9301e | 3860 | { |
19ba03f4 | 3861 | struct traceframe_info *info = (struct traceframe_info *) user_data; |
b3b9301e PA |
3862 | ULONGEST *start_p, *length_p; |
3863 | ||
19ba03f4 | 3864 | start_p |
4d0fdd9b | 3865 | = (ULONGEST *) xml_find_attribute (attributes, "start")->value.get (); |
19ba03f4 | 3866 | length_p |
4d0fdd9b | 3867 | = (ULONGEST *) xml_find_attribute (attributes, "length")->value.get (); |
b3b9301e | 3868 | |
4cdd21a8 | 3869 | info->memory.emplace_back (*start_p, *length_p); |
b3b9301e PA |
3870 | } |
3871 | ||
28a93511 YQ |
3872 | /* Handle the start of a <tvar> element. */ |
3873 | ||
3874 | static void | |
3875 | traceframe_info_start_tvar (struct gdb_xml_parser *parser, | |
3876 | const struct gdb_xml_element *element, | |
3877 | void *user_data, | |
4d0fdd9b | 3878 | std::vector<gdb_xml_value> &attributes) |
28a93511 | 3879 | { |
19ba03f4 SM |
3880 | struct traceframe_info *info = (struct traceframe_info *) user_data; |
3881 | const char *id_attrib | |
4d0fdd9b | 3882 | = (const char *) xml_find_attribute (attributes, "id")->value.get (); |
28a93511 YQ |
3883 | int id = gdb_xml_parse_ulongest (parser, id_attrib); |
3884 | ||
d0d292a2 | 3885 | info->tvars.push_back (id); |
28a93511 YQ |
3886 | } |
3887 | ||
b3b9301e PA |
3888 | /* The allowed elements and attributes for an XML memory map. */ |
3889 | ||
3890 | static const struct gdb_xml_attribute memory_attributes[] = { | |
3891 | { "start", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL }, | |
3892 | { "length", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL }, | |
3893 | { NULL, GDB_XML_AF_NONE, NULL, NULL } | |
3894 | }; | |
3895 | ||
28a93511 YQ |
3896 | static const struct gdb_xml_attribute tvar_attributes[] = { |
3897 | { "id", GDB_XML_AF_NONE, NULL, NULL }, | |
3898 | { NULL, GDB_XML_AF_NONE, NULL, NULL } | |
3899 | }; | |
3900 | ||
b3b9301e PA |
3901 | static const struct gdb_xml_element traceframe_info_children[] = { |
3902 | { "memory", memory_attributes, NULL, | |
3903 | GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL, | |
3904 | traceframe_info_start_memory, NULL }, | |
28a93511 YQ |
3905 | { "tvar", tvar_attributes, NULL, |
3906 | GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL, | |
3907 | traceframe_info_start_tvar, NULL }, | |
b3b9301e PA |
3908 | { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL } |
3909 | }; | |
3910 | ||
3911 | static const struct gdb_xml_element traceframe_info_elements[] = { | |
3912 | { "traceframe-info", NULL, traceframe_info_children, GDB_XML_EF_NONE, | |
3913 | NULL, NULL }, | |
3914 | { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL } | |
3915 | }; | |
3916 | ||
3917 | /* Parse a traceframe-info XML document. */ | |
3918 | ||
2098b393 | 3919 | traceframe_info_up |
b3b9301e PA |
3920 | parse_traceframe_info (const char *tframe_info) |
3921 | { | |
2098b393 | 3922 | traceframe_info_up result (new traceframe_info); |
b3b9301e PA |
3923 | |
3924 | if (gdb_xml_parse_quick (_("trace frame info"), | |
3925 | "traceframe-info.dtd", traceframe_info_elements, | |
2098b393 SM |
3926 | tframe_info, result.get ()) == 0) |
3927 | return result; | |
b3b9301e | 3928 | |
b3b9301e PA |
3929 | return NULL; |
3930 | } | |
3931 | ||
3932 | #endif /* HAVE_LIBEXPAT */ | |
3933 | ||
3934 | /* Returns the traceframe_info object for the current traceframe. | |
3935 | This is where we avoid re-fetching the object from the target if we | |
3936 | already have it cached. */ | |
3937 | ||
dc673c81 | 3938 | struct traceframe_info * |
b3b9301e PA |
3939 | get_traceframe_info (void) |
3940 | { | |
8d3c73ef SM |
3941 | if (current_traceframe_info == NULL) |
3942 | current_traceframe_info = target_traceframe_info (); | |
b3b9301e | 3943 | |
2098b393 | 3944 | return current_traceframe_info.get (); |
b3b9301e PA |
3945 | } |
3946 | ||
c0f61f9c PA |
3947 | /* If the target supports the query, return in RESULT the set of |
3948 | collected memory in the current traceframe, found within the LEN | |
3949 | bytes range starting at MEMADDR. Returns true if the target | |
3950 | supports the query, otherwise returns false, and RESULT is left | |
3951 | undefined. */ | |
2a7498d8 PA |
3952 | |
3953 | int | |
a79b1bc6 | 3954 | traceframe_available_memory (std::vector<mem_range> *result, |
2a7498d8 PA |
3955 | CORE_ADDR memaddr, ULONGEST len) |
3956 | { | |
3957 | struct traceframe_info *info = get_traceframe_info (); | |
3958 | ||
3959 | if (info != NULL) | |
3960 | { | |
a79b1bc6 | 3961 | result->clear (); |
2a7498d8 | 3962 | |
4cdd21a8 SM |
3963 | for (mem_range &r : info->memory) |
3964 | if (mem_ranges_overlap (r.start, r.length, memaddr, len)) | |
2a7498d8 PA |
3965 | { |
3966 | ULONGEST lo1, hi1, lo2, hi2; | |
2a7498d8 PA |
3967 | |
3968 | lo1 = memaddr; | |
3969 | hi1 = memaddr + len; | |
3970 | ||
4cdd21a8 SM |
3971 | lo2 = r.start; |
3972 | hi2 = r.start + r.length; | |
2a7498d8 | 3973 | |
a79b1bc6 SM |
3974 | CORE_ADDR start = std::max (lo1, lo2); |
3975 | int length = std::min (hi1, hi2) - start; | |
2a7498d8 | 3976 | |
a79b1bc6 | 3977 | result->emplace_back (start, length); |
2a7498d8 PA |
3978 | } |
3979 | ||
a79b1bc6 | 3980 | normalize_mem_ranges (result); |
2a7498d8 PA |
3981 | return 1; |
3982 | } | |
3983 | ||
3984 | return 0; | |
3985 | } | |
3986 | ||
22d2b532 SDJ |
3987 | /* Implementation of `sdata' variable. */ |
3988 | ||
3989 | static const struct internalvar_funcs sdata_funcs = | |
3990 | { | |
3991 | sdata_make_value, | |
3992 | NULL, | |
3993 | NULL | |
3994 | }; | |
3995 | ||
8588b356 SM |
3996 | /* See tracepoint.h. */ |
3997 | cmd_list_element *while_stepping_cmd_element = nullptr; | |
3998 | ||
c906108c | 3999 | /* module initialization */ |
6c265988 | 4000 | void _initialize_tracepoint (); |
c906108c | 4001 | void |
6c265988 | 4002 | _initialize_tracepoint () |
c906108c | 4003 | { |
fa58ee11 EZ |
4004 | struct cmd_list_element *c; |
4005 | ||
0fb4aa4b PA |
4006 | /* Explicitly create without lookup, since that tries to create a |
4007 | value with a void typed value, and when we get here, gdbarch | |
4008 | isn't initialized yet. At this point, we're quite sure there | |
4009 | isn't another convenience variable of the same name. */ | |
22d2b532 | 4010 | create_internalvar_type_lazy ("_sdata", &sdata_funcs, NULL); |
0fb4aa4b | 4011 | |
c906108c SS |
4012 | traceframe_number = -1; |
4013 | tracepoint_number = -1; | |
4014 | ||
11db9430 | 4015 | add_info ("scope", info_scope_command, |
590042fc | 4016 | _("List the variables local to a scope.")); |
c906108c | 4017 | |
0450cc4c | 4018 | add_cmd ("tracepoints", class_trace, |
1a966eab | 4019 | _("Tracing of program execution without stopping the program."), |
c906108c SS |
4020 | &cmdlist); |
4021 | ||
e5a873b7 | 4022 | add_com ("tdump", class_trace, tdump_command, |
1bedd215 | 4023 | _("Print everything collected at the current tracepoint.")); |
c906108c | 4024 | |
f61e138d SS |
4025 | c = add_com ("tvariable", class_trace, trace_variable_command,_("\ |
4026 | Define a trace state variable.\n\ | |
4027 | Argument is a $-prefixed name, optionally followed\n\ | |
4028 | by '=' and an expression that sets the initial value\n\ | |
4029 | at the start of tracing.")); | |
4030 | set_cmd_completer (c, expression_completer); | |
4031 | ||
4032 | add_cmd ("tvariable", class_trace, delete_trace_variable_command, _("\ | |
4033 | Delete one or more trace state variables.\n\ | |
4034 | Arguments are the names of the variables to delete.\n\ | |
4035 | If no arguments are supplied, delete all variables."), &deletelist); | |
c378eb4e | 4036 | /* FIXME add a trace variable completer. */ |
f61e138d | 4037 | |
11db9430 | 4038 | add_info ("tvariables", info_tvariables_command, _("\ |
89549d7f | 4039 | Status of trace state variables and their values.")); |
0fb4aa4b PA |
4040 | |
4041 | add_info ("static-tracepoint-markers", | |
4042 | info_static_tracepoint_markers_command, _("\ | |
89549d7f | 4043 | List target static tracepoints markers.")); |
f61e138d | 4044 | |
e5a873b7 | 4045 | add_prefix_cmd ("tfind", class_trace, tfind_command, _("\ |
590042fc | 4046 | Select a trace frame.\n\ |
1bedd215 | 4047 | No argument means forward by one frame; '-' means backward by one frame."), |
c906108c SS |
4048 | &tfindlist, "tfind ", 1, &cmdlist); |
4049 | ||
e5a873b7 | 4050 | add_cmd ("outside", class_trace, tfind_outside_command, _("\ |
081dfbf7 | 4051 | Select a trace frame whose PC is outside the given range (exclusive).\n\ |
65e65158 | 4052 | Usage: tfind outside ADDR1, ADDR2"), |
c906108c SS |
4053 | &tfindlist); |
4054 | ||
e5a873b7 | 4055 | add_cmd ("range", class_trace, tfind_range_command, _("\ |
081dfbf7 | 4056 | Select a trace frame whose PC is in the given range (inclusive).\n\ |
65e65158 | 4057 | Usage: tfind range ADDR1, ADDR2"), |
c906108c SS |
4058 | &tfindlist); |
4059 | ||
e5a873b7 | 4060 | add_cmd ("line", class_trace, tfind_line_command, _("\ |
1a966eab | 4061 | Select a trace frame by source line.\n\ |
cce7e648 | 4062 | Argument can be a line number (with optional source file),\n\ |
c906108c | 4063 | a function name, or '*' followed by an address.\n\ |
1a966eab | 4064 | Default argument is 'the next source line that was traced'."), |
c906108c SS |
4065 | &tfindlist); |
4066 | ||
e5a873b7 | 4067 | add_cmd ("tracepoint", class_trace, tfind_tracepoint_command, _("\ |
1a966eab AC |
4068 | Select a trace frame by tracepoint number.\n\ |
4069 | Default is the tracepoint for the current trace frame."), | |
c906108c SS |
4070 | &tfindlist); |
4071 | ||
e5a873b7 | 4072 | add_cmd ("pc", class_trace, tfind_pc_command, _("\ |
1a966eab AC |
4073 | Select a trace frame by PC.\n\ |
4074 | Default is the current PC, or the PC of the current trace frame."), | |
c906108c SS |
4075 | &tfindlist); |
4076 | ||
e5a873b7 | 4077 | add_cmd ("end", class_trace, tfind_end_command, _("\ |
1a966eab | 4078 | De-select any trace frame and resume 'live' debugging."), |
c906108c SS |
4079 | &tfindlist); |
4080 | ||
8acc4065 | 4081 | add_alias_cmd ("none", "end", class_trace, 0, &tfindlist); |
c906108c | 4082 | |
e5a873b7 | 4083 | add_cmd ("start", class_trace, tfind_start_command, |
1a966eab | 4084 | _("Select the first trace frame in the trace buffer."), |
c906108c SS |
4085 | &tfindlist); |
4086 | ||
e5a873b7 | 4087 | add_com ("tstatus", class_trace, tstatus_command, |
1bedd215 | 4088 | _("Display the status of the current trace data collection.")); |
c906108c | 4089 | |
e5a873b7 | 4090 | add_com ("tstop", class_trace, tstop_command, _("\ |
f196051f | 4091 | Stop trace data collection.\n\ |
02d016b7 | 4092 | Usage: tstop [NOTES]...\n\ |
f196051f SS |
4093 | Any arguments supplied are recorded with the trace as a stop reason and\n\ |
4094 | reported by tstatus (if the target supports trace notes).")); | |
c906108c | 4095 | |
e5a873b7 | 4096 | add_com ("tstart", class_trace, tstart_command, _("\ |
f196051f | 4097 | Start trace data collection.\n\ |
02d016b7 | 4098 | Usage: tstart [NOTES]...\n\ |
f196051f SS |
4099 | Any arguments supplied are recorded with the trace as a note and\n\ |
4100 | reported by tstatus (if the target supports trace notes).")); | |
c906108c | 4101 | |
1bedd215 AC |
4102 | add_com ("end", class_trace, end_actions_pseudocommand, _("\ |
4103 | Ends a list of commands or actions.\n\ | |
c906108c SS |
4104 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
4105 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
4106 | such a list.\n\n\ | |
1bedd215 | 4107 | Note: the \"end\" command cannot be used at the gdb prompt.")); |
c906108c | 4108 | |
8588b356 SM |
4109 | while_stepping_cmd_element = add_com ("while-stepping", class_trace, |
4110 | while_stepping_pseudocommand, _("\ | |
1bedd215 | 4111 | Specify single-stepping behavior at a tracepoint.\n\ |
c906108c SS |
4112 | Argument is number of instructions to trace in single-step mode\n\ |
4113 | following the tracepoint. This command is normally followed by\n\ | |
4114 | one or more \"collect\" commands, to specify what to collect\n\ | |
4115 | while single-stepping.\n\n\ | |
1bedd215 | 4116 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 4117 | |
57b4f16e PW |
4118 | add_com_alias ("ws", "while-stepping", class_trace, 0); |
4119 | add_com_alias ("stepping", "while-stepping", class_trace, 0); | |
c906108c | 4120 | |
1bedd215 AC |
4121 | add_com ("collect", class_trace, collect_pseudocommand, _("\ |
4122 | Specify one or more data items to be collected at a tracepoint.\n\ | |
c906108c SS |
4123 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
4124 | collect all data (variables, registers) referenced by that expression.\n\ | |
4125 | Also accepts the following special arguments:\n\ | |
4126 | $regs -- all registers.\n\ | |
4127 | $args -- all function arguments.\n\ | |
4128 | $locals -- all variables local to the block/function scope.\n\ | |
0fb4aa4b | 4129 | $_sdata -- static tracepoint data (ignored for non-static tracepoints).\n\ |
1bedd215 | 4130 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 4131 | |
6da95a67 SS |
4132 | add_com ("teval", class_trace, teval_pseudocommand, _("\ |
4133 | Specify one or more expressions to be evaluated at a tracepoint.\n\ | |
4134 | Accepts a comma-separated list of (one or more) expressions.\n\ | |
4135 | The result of each evaluation will be discarded.\n\ | |
4136 | Note: this command can only be used in a tracepoint \"actions\" list.")); | |
4137 | ||
e5a873b7 | 4138 | add_com ("actions", class_trace, actions_command, _("\ |
1bedd215 | 4139 | Specify the actions to be taken at a tracepoint.\n\ |
cce7e648 PA |
4140 | Tracepoint actions may include collecting of specified data,\n\ |
4141 | single-stepping, or enabling/disabling other tracepoints,\n\ | |
1bedd215 | 4142 | depending on target's capabilities.")); |
c906108c | 4143 | |
236f1d4d SS |
4144 | default_collect = xstrdup (""); |
4145 | add_setshow_string_cmd ("default-collect", class_trace, | |
4146 | &default_collect, _("\ | |
590042fc PW |
4147 | Set the list of expressions to collect by default."), _("\ |
4148 | Show the list of expressions to collect by default."), NULL, | |
236f1d4d SS |
4149 | NULL, NULL, |
4150 | &setlist, &showlist); | |
4151 | ||
d5551862 SS |
4152 | add_setshow_boolean_cmd ("disconnected-tracing", no_class, |
4153 | &disconnected_tracing, _("\ | |
4154 | Set whether tracing continues after GDB disconnects."), _("\ | |
4155 | Show whether tracing continues after GDB disconnects."), _("\ | |
4156 | Use this to continue a tracing run even if GDB disconnects\n\ | |
4157 | or detaches from the target. You can reconnect later and look at\n\ | |
4158 | trace data collected in the meantime."), | |
4159 | set_disconnected_tracing, | |
4160 | NULL, | |
4161 | &setlist, | |
4162 | &showlist); | |
00bf0b85 | 4163 | |
4daf5ac0 SS |
4164 | add_setshow_boolean_cmd ("circular-trace-buffer", no_class, |
4165 | &circular_trace_buffer, _("\ | |
4166 | Set target's use of circular trace buffer."), _("\ | |
4167 | Show target's use of circular trace buffer."), _("\ | |
4168 | Use this to make the trace buffer into a circular buffer,\n\ | |
4169 | which will discard traceframes (oldest first) instead of filling\n\ | |
4170 | up and stopping the trace run."), | |
4171 | set_circular_trace_buffer, | |
4172 | NULL, | |
4173 | &setlist, | |
4174 | &showlist); | |
4175 | ||
f6f899bf | 4176 | add_setshow_zuinteger_unlimited_cmd ("trace-buffer-size", no_class, |
9b67fcec | 4177 | &trace_buffer_size, _("\ |
f6f899bf HAQ |
4178 | Set requested size of trace buffer."), _("\ |
4179 | Show requested size of trace buffer."), _("\ | |
4180 | Use this to choose a size for the trace buffer. Some targets\n\ | |
f81d1120 PA |
4181 | may have fixed or limited buffer sizes. Specifying \"unlimited\" or -1\n\ |
4182 | disables any attempt to set the buffer size and lets the target choose."), | |
9b67fcec YQ |
4183 | set_trace_buffer_size, NULL, |
4184 | &setlist, &showlist); | |
f6f899bf | 4185 | |
f196051f SS |
4186 | add_setshow_string_cmd ("trace-user", class_trace, |
4187 | &trace_user, _("\ | |
590042fc PW |
4188 | Set the user name to use for current and future trace runs."), _("\ |
4189 | Show the user name to use for current and future trace runs."), NULL, | |
f196051f SS |
4190 | set_trace_user, NULL, |
4191 | &setlist, &showlist); | |
4192 | ||
4193 | add_setshow_string_cmd ("trace-notes", class_trace, | |
4194 | &trace_notes, _("\ | |
590042fc PW |
4195 | Set notes string to use for current and future trace runs."), _("\ |
4196 | Show the notes string to use for current and future trace runs."), NULL, | |
f196051f SS |
4197 | set_trace_notes, NULL, |
4198 | &setlist, &showlist); | |
4199 | ||
4200 | add_setshow_string_cmd ("trace-stop-notes", class_trace, | |
4201 | &trace_stop_notes, _("\ | |
590042fc PW |
4202 | Set notes string to use for future tstop commands."), _("\ |
4203 | Show the notes string to use for future tstop commands."), NULL, | |
f196051f SS |
4204 | set_trace_stop_notes, NULL, |
4205 | &setlist, &showlist); | |
c906108c | 4206 | } |