| 1 | /* Tracing functionality for remote targets in custom GDB protocol |
| 2 | Copyright 1997, 1998 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 59 Temple Place - Suite 330, |
| 19 | Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | #include "defs.h" |
| 22 | #include "symtab.h" |
| 23 | #include "frame.h" |
| 24 | #include "tracepoint.h" |
| 25 | #include "gdbtypes.h" |
| 26 | #include "expression.h" |
| 27 | #include "gdbcmd.h" |
| 28 | #include "value.h" |
| 29 | #include "target.h" |
| 30 | #include "language.h" |
| 31 | #include "gdb_string.h" |
| 32 | |
| 33 | #include "ax.h" |
| 34 | #include "ax-gdb.h" |
| 35 | |
| 36 | /* readline include files */ |
| 37 | #include <readline/readline.h> |
| 38 | #include <readline/history.h> |
| 39 | |
| 40 | /* readline defines this. */ |
| 41 | #undef savestring |
| 42 | |
| 43 | #ifdef HAVE_UNISTD_H |
| 44 | #include <unistd.h> |
| 45 | #endif |
| 46 | |
| 47 | /* maximum length of an agent aexpression. |
| 48 | this accounts for the fact that packets are limited to 400 bytes |
| 49 | (which includes everything -- including the checksum), and assumes |
| 50 | the worst case of maximum length for each of the pieces of a |
| 51 | continuation packet. |
| 52 | |
| 53 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
| 54 | large. (400 - 31)/2 == 184 */ |
| 55 | #define MAX_AGENT_EXPR_LEN 184 |
| 56 | |
| 57 | |
| 58 | extern int info_verbose; |
| 59 | extern void (*readline_begin_hook) PARAMS ((char *,...)); |
| 60 | extern char *(*readline_hook) PARAMS ((char *)); |
| 61 | extern void (*readline_end_hook) PARAMS ((void)); |
| 62 | extern void x_command PARAMS ((char *, int)); |
| 63 | extern int addressprint; /* Print machine addresses? */ |
| 64 | |
| 65 | /* If this definition isn't overridden by the header files, assume |
| 66 | that isatty and fileno exist on this system. */ |
| 67 | #ifndef ISATTY |
| 68 | #define ISATTY(FP) (isatty (fileno (FP))) |
| 69 | #endif |
| 70 | |
| 71 | /* |
| 72 | Tracepoint.c: |
| 73 | |
| 74 | This module defines the following debugger commands: |
| 75 | trace : set a tracepoint on a function, line, or address. |
| 76 | info trace : list all debugger-defined tracepoints. |
| 77 | delete trace : delete one or more tracepoints. |
| 78 | enable trace : enable one or more tracepoints. |
| 79 | disable trace : disable one or more tracepoints. |
| 80 | actions : specify actions to be taken at a tracepoint. |
| 81 | passcount : specify a pass count for a tracepoint. |
| 82 | tstart : start a trace experiment. |
| 83 | tstop : stop a trace experiment. |
| 84 | tstatus : query the status of a trace experiment. |
| 85 | tfind : find a trace frame in the trace buffer. |
| 86 | tdump : print everything collected at the current tracepoint. |
| 87 | save-tracepoints : write tracepoint setup into a file. |
| 88 | |
| 89 | This module defines the following user-visible debugger variables: |
| 90 | $trace_frame : sequence number of trace frame currently being debugged. |
| 91 | $trace_line : source line of trace frame currently being debugged. |
| 92 | $trace_file : source file of trace frame currently being debugged. |
| 93 | $tracepoint : tracepoint number of trace frame currently being debugged. |
| 94 | */ |
| 95 | |
| 96 | |
| 97 | /* ======= Important global variables: ======= */ |
| 98 | |
| 99 | /* Chain of all tracepoints defined. */ |
| 100 | struct tracepoint *tracepoint_chain; |
| 101 | |
| 102 | /* Number of last tracepoint made. */ |
| 103 | static int tracepoint_count; |
| 104 | |
| 105 | /* Number of last traceframe collected. */ |
| 106 | static int traceframe_number; |
| 107 | |
| 108 | /* Tracepoint for last traceframe collected. */ |
| 109 | static int tracepoint_number; |
| 110 | |
| 111 | /* Symbol for function for last traceframe collected */ |
| 112 | static struct symbol *traceframe_fun; |
| 113 | |
| 114 | /* Symtab and line for last traceframe collected */ |
| 115 | static struct symtab_and_line traceframe_sal; |
| 116 | |
| 117 | /* Tracing command lists */ |
| 118 | static struct cmd_list_element *tfindlist; |
| 119 | |
| 120 | /* ======= Important command functions: ======= */ |
| 121 | static void trace_command PARAMS ((char *, int)); |
| 122 | static void tracepoints_info PARAMS ((char *, int)); |
| 123 | static void delete_trace_command PARAMS ((char *, int)); |
| 124 | static void enable_trace_command PARAMS ((char *, int)); |
| 125 | static void disable_trace_command PARAMS ((char *, int)); |
| 126 | static void trace_pass_command PARAMS ((char *, int)); |
| 127 | static void trace_actions_command PARAMS ((char *, int)); |
| 128 | static void trace_start_command PARAMS ((char *, int)); |
| 129 | static void trace_stop_command PARAMS ((char *, int)); |
| 130 | static void trace_status_command PARAMS ((char *, int)); |
| 131 | static void trace_find_command PARAMS ((char *, int)); |
| 132 | static void trace_find_pc_command PARAMS ((char *, int)); |
| 133 | static void trace_find_tracepoint_command PARAMS ((char *, int)); |
| 134 | static void trace_find_line_command PARAMS ((char *, int)); |
| 135 | static void trace_find_range_command PARAMS ((char *, int)); |
| 136 | static void trace_find_outside_command PARAMS ((char *, int)); |
| 137 | static void tracepoint_save_command PARAMS ((char *, int)); |
| 138 | static void trace_dump_command PARAMS ((char *, int)); |
| 139 | |
| 140 | /* support routines */ |
| 141 | static void trace_mention PARAMS ((struct tracepoint *)); |
| 142 | |
| 143 | #if __STDC__ |
| 144 | struct collection_list; |
| 145 | #endif |
| 146 | static void add_aexpr PARAMS ((struct collection_list *, struct agent_expr *)); |
| 147 | static unsigned char *mem2hex (unsigned char *, unsigned char *, int); |
| 148 | static void add_register PARAMS ((struct collection_list * collection, unsigned long regno)); |
| 149 | static void free_actions_list PARAMS ((char **actions_list)); |
| 150 | static void free_actions_list_cleanup_wrapper PARAMS ((void *)); |
| 151 | |
| 152 | extern void _initialize_tracepoint PARAMS ((void)); |
| 153 | |
| 154 | /* Utility: returns true if "target remote" */ |
| 155 | static int |
| 156 | target_is_remote () |
| 157 | { |
| 158 | if (current_target.to_shortname && |
| 159 | strcmp (current_target.to_shortname, "remote") == 0) |
| 160 | return 1; |
| 161 | else |
| 162 | return 0; |
| 163 | } |
| 164 | |
| 165 | /* Utility: generate error from an incoming stub packet. */ |
| 166 | static void |
| 167 | trace_error (buf) |
| 168 | char *buf; |
| 169 | { |
| 170 | if (*buf++ != 'E') |
| 171 | return; /* not an error msg */ |
| 172 | switch (*buf) |
| 173 | { |
| 174 | case '1': /* malformed packet error */ |
| 175 | if (*++buf == '0') /* general case: */ |
| 176 | error ("tracepoint.c: error in outgoing packet."); |
| 177 | else |
| 178 | error ("tracepoint.c: error in outgoing packet at field #%d.", |
| 179 | strtol (buf, NULL, 16)); |
| 180 | case '2': |
| 181 | error ("trace API error 0x%s.", ++buf); |
| 182 | default: |
| 183 | error ("Target returns error code '%s'.", buf); |
| 184 | } |
| 185 | } |
| 186 | |
| 187 | /* Utility: wait for reply from stub, while accepting "O" packets */ |
| 188 | static char * |
| 189 | remote_get_noisy_reply (buf) |
| 190 | char *buf; |
| 191 | { |
| 192 | do /* loop on reply from remote stub */ |
| 193 | { |
| 194 | QUIT; /* allow user to bail out with ^C */ |
| 195 | getpkt (buf, 0); |
| 196 | if (buf[0] == 0) |
| 197 | error ("Target does not support this command."); |
| 198 | else if (buf[0] == 'E') |
| 199 | trace_error (buf); |
| 200 | else if (buf[0] == 'O' && |
| 201 | buf[1] != 'K') |
| 202 | remote_console_output (buf + 1); /* 'O' message from stub */ |
| 203 | else |
| 204 | return buf; /* here's the actual reply */ |
| 205 | } |
| 206 | while (1); |
| 207 | } |
| 208 | |
| 209 | /* Set tracepoint count to NUM. */ |
| 210 | static void |
| 211 | set_tracepoint_count (num) |
| 212 | int num; |
| 213 | { |
| 214 | tracepoint_count = num; |
| 215 | set_internalvar (lookup_internalvar ("tpnum"), |
| 216 | value_from_longest (builtin_type_int, (LONGEST) num)); |
| 217 | } |
| 218 | |
| 219 | /* Set traceframe number to NUM. */ |
| 220 | static void |
| 221 | set_traceframe_num (num) |
| 222 | int num; |
| 223 | { |
| 224 | traceframe_number = num; |
| 225 | set_internalvar (lookup_internalvar ("trace_frame"), |
| 226 | value_from_longest (builtin_type_int, (LONGEST) num)); |
| 227 | } |
| 228 | |
| 229 | /* Set tracepoint number to NUM. */ |
| 230 | static void |
| 231 | set_tracepoint_num (num) |
| 232 | int num; |
| 233 | { |
| 234 | tracepoint_number = num; |
| 235 | set_internalvar (lookup_internalvar ("tracepoint"), |
| 236 | value_from_longest (builtin_type_int, (LONGEST) num)); |
| 237 | } |
| 238 | |
| 239 | /* Set externally visible debug variables for querying/printing |
| 240 | the traceframe context (line, function, file) */ |
| 241 | |
| 242 | static void |
| 243 | set_traceframe_context (trace_pc) |
| 244 | CORE_ADDR trace_pc; |
| 245 | { |
| 246 | static struct type *func_string, *file_string; |
| 247 | static struct type *func_range, *file_range; |
| 248 | static value_ptr func_val, file_val; |
| 249 | static struct type *charstar; |
| 250 | int len; |
| 251 | |
| 252 | if (charstar == (struct type *) NULL) |
| 253 | charstar = lookup_pointer_type (builtin_type_char); |
| 254 | |
| 255 | if (trace_pc == -1) /* cease debugging any trace buffers */ |
| 256 | { |
| 257 | traceframe_fun = 0; |
| 258 | traceframe_sal.pc = traceframe_sal.line = 0; |
| 259 | traceframe_sal.symtab = NULL; |
| 260 | set_internalvar (lookup_internalvar ("trace_func"), |
| 261 | value_from_longest (charstar, (LONGEST) 0)); |
| 262 | set_internalvar (lookup_internalvar ("trace_file"), |
| 263 | value_from_longest (charstar, (LONGEST) 0)); |
| 264 | set_internalvar (lookup_internalvar ("trace_line"), |
| 265 | value_from_longest (builtin_type_int, (LONGEST) - 1)); |
| 266 | return; |
| 267 | } |
| 268 | |
| 269 | /* save as globals for internal use */ |
| 270 | traceframe_sal = find_pc_line (trace_pc, 0); |
| 271 | traceframe_fun = find_pc_function (trace_pc); |
| 272 | |
| 273 | /* save linenumber as "$trace_line", a debugger variable visible to users */ |
| 274 | set_internalvar (lookup_internalvar ("trace_line"), |
| 275 | value_from_longest (builtin_type_int, |
| 276 | (LONGEST) traceframe_sal.line)); |
| 277 | |
| 278 | /* save func name as "$trace_func", a debugger variable visible to users */ |
| 279 | if (traceframe_fun == NULL || |
| 280 | SYMBOL_NAME (traceframe_fun) == NULL) |
| 281 | set_internalvar (lookup_internalvar ("trace_func"), |
| 282 | value_from_longest (charstar, (LONGEST) 0)); |
| 283 | else |
| 284 | { |
| 285 | len = strlen (SYMBOL_NAME (traceframe_fun)); |
| 286 | func_range = create_range_type (func_range, |
| 287 | builtin_type_int, 0, len - 1); |
| 288 | func_string = create_array_type (func_string, |
| 289 | builtin_type_char, func_range); |
| 290 | func_val = allocate_value (func_string); |
| 291 | VALUE_TYPE (func_val) = func_string; |
| 292 | memcpy (VALUE_CONTENTS_RAW (func_val), |
| 293 | SYMBOL_NAME (traceframe_fun), |
| 294 | len); |
| 295 | func_val->modifiable = 0; |
| 296 | set_internalvar (lookup_internalvar ("trace_func"), func_val); |
| 297 | } |
| 298 | |
| 299 | /* save file name as "$trace_file", a debugger variable visible to users */ |
| 300 | if (traceframe_sal.symtab == NULL || |
| 301 | traceframe_sal.symtab->filename == NULL) |
| 302 | set_internalvar (lookup_internalvar ("trace_file"), |
| 303 | value_from_longest (charstar, (LONGEST) 0)); |
| 304 | else |
| 305 | { |
| 306 | len = strlen (traceframe_sal.symtab->filename); |
| 307 | file_range = create_range_type (file_range, |
| 308 | builtin_type_int, 0, len - 1); |
| 309 | file_string = create_array_type (file_string, |
| 310 | builtin_type_char, file_range); |
| 311 | file_val = allocate_value (file_string); |
| 312 | VALUE_TYPE (file_val) = file_string; |
| 313 | memcpy (VALUE_CONTENTS_RAW (file_val), |
| 314 | traceframe_sal.symtab->filename, |
| 315 | len); |
| 316 | file_val->modifiable = 0; |
| 317 | set_internalvar (lookup_internalvar ("trace_file"), file_val); |
| 318 | } |
| 319 | } |
| 320 | |
| 321 | /* Low level routine to set a tracepoint. |
| 322 | Returns the tracepoint object so caller can set other things. |
| 323 | Does not set the tracepoint number! |
| 324 | Does not print anything. |
| 325 | |
| 326 | ==> This routine should not be called if there is a chance of later |
| 327 | error(); otherwise it leaves a bogus tracepoint on the chain. Validate |
| 328 | your arguments BEFORE calling this routine! */ |
| 329 | |
| 330 | static struct tracepoint * |
| 331 | set_raw_tracepoint (sal) |
| 332 | struct symtab_and_line sal; |
| 333 | { |
| 334 | register struct tracepoint *t, *tc; |
| 335 | struct cleanup *old_chain; |
| 336 | |
| 337 | t = (struct tracepoint *) xmalloc (sizeof (struct tracepoint)); |
| 338 | old_chain = make_cleanup (free, t); |
| 339 | memset (t, 0, sizeof (*t)); |
| 340 | t->address = sal.pc; |
| 341 | if (sal.symtab == NULL) |
| 342 | t->source_file = NULL; |
| 343 | else |
| 344 | t->source_file = savestring (sal.symtab->filename, |
| 345 | strlen (sal.symtab->filename)); |
| 346 | |
| 347 | t->section = sal.section; |
| 348 | t->language = current_language->la_language; |
| 349 | t->input_radix = input_radix; |
| 350 | t->line_number = sal.line; |
| 351 | t->enabled = enabled; |
| 352 | t->next = 0; |
| 353 | t->step_count = 0; |
| 354 | t->pass_count = 0; |
| 355 | t->addr_string = NULL; |
| 356 | |
| 357 | /* Add this tracepoint to the end of the chain |
| 358 | so that a list of tracepoints will come out in order |
| 359 | of increasing numbers. */ |
| 360 | |
| 361 | tc = tracepoint_chain; |
| 362 | if (tc == 0) |
| 363 | tracepoint_chain = t; |
| 364 | else |
| 365 | { |
| 366 | while (tc->next) |
| 367 | tc = tc->next; |
| 368 | tc->next = t; |
| 369 | } |
| 370 | discard_cleanups (old_chain); |
| 371 | return t; |
| 372 | } |
| 373 | |
| 374 | /* Set a tracepoint according to ARG (function, linenum or *address) */ |
| 375 | static void |
| 376 | trace_command (arg, from_tty) |
| 377 | char *arg; |
| 378 | int from_tty; |
| 379 | { |
| 380 | char **canonical = (char **) NULL; |
| 381 | struct symtabs_and_lines sals; |
| 382 | struct symtab_and_line sal; |
| 383 | struct tracepoint *t; |
| 384 | char *addr_start = 0, *addr_end = 0; |
| 385 | int i; |
| 386 | |
| 387 | if (!arg || !*arg) |
| 388 | error ("trace command requires an argument"); |
| 389 | |
| 390 | if (from_tty && info_verbose) |
| 391 | printf_filtered ("TRACE %s\n", arg); |
| 392 | |
| 393 | addr_start = arg; |
| 394 | sals = decode_line_1 (&arg, 1, (struct symtab *) NULL, 0, &canonical); |
| 395 | addr_end = arg; |
| 396 | if (!sals.nelts) |
| 397 | return; /* ??? Presumably decode_line_1 has already warned? */ |
| 398 | |
| 399 | /* Resolve all line numbers to PC's */ |
| 400 | for (i = 0; i < sals.nelts; i++) |
| 401 | resolve_sal_pc (&sals.sals[i]); |
| 402 | |
| 403 | /* Now set all the tracepoints. */ |
| 404 | for (i = 0; i < sals.nelts; i++) |
| 405 | { |
| 406 | sal = sals.sals[i]; |
| 407 | |
| 408 | t = set_raw_tracepoint (sal); |
| 409 | set_tracepoint_count (tracepoint_count + 1); |
| 410 | t->number = tracepoint_count; |
| 411 | |
| 412 | /* If a canonical line spec is needed use that instead of the |
| 413 | command string. */ |
| 414 | if (canonical != (char **) NULL && canonical[i] != NULL) |
| 415 | t->addr_string = canonical[i]; |
| 416 | else if (addr_start) |
| 417 | t->addr_string = savestring (addr_start, addr_end - addr_start); |
| 418 | |
| 419 | trace_mention (t); |
| 420 | |
| 421 | /* Let the UI know of any additions */ |
| 422 | if (create_tracepoint_hook) |
| 423 | create_tracepoint_hook (t); |
| 424 | } |
| 425 | |
| 426 | if (sals.nelts > 1) |
| 427 | { |
| 428 | printf_filtered ("Multiple tracepoints were set.\n"); |
| 429 | printf_filtered ("Use 'delete trace' to delete unwanted tracepoints.\n"); |
| 430 | } |
| 431 | } |
| 432 | |
| 433 | /* Tell the user we have just set a tracepoint TP. */ |
| 434 | |
| 435 | static void |
| 436 | trace_mention (tp) |
| 437 | struct tracepoint *tp; |
| 438 | { |
| 439 | printf_filtered ("Tracepoint %d", tp->number); |
| 440 | |
| 441 | if (addressprint || (tp->source_file == NULL)) |
| 442 | { |
| 443 | printf_filtered (" at "); |
| 444 | print_address_numeric (tp->address, 1, gdb_stdout); |
| 445 | } |
| 446 | if (tp->source_file) |
| 447 | printf_filtered (": file %s, line %d.", |
| 448 | tp->source_file, tp->line_number); |
| 449 | |
| 450 | printf_filtered ("\n"); |
| 451 | } |
| 452 | |
| 453 | /* Print information on tracepoint number TPNUM_EXP, or all if omitted. */ |
| 454 | |
| 455 | static void |
| 456 | tracepoints_info (tpnum_exp, from_tty) |
| 457 | char *tpnum_exp; |
| 458 | int from_tty; |
| 459 | { |
| 460 | struct tracepoint *t; |
| 461 | struct action_line *action; |
| 462 | int found_a_tracepoint = 0; |
| 463 | char wrap_indent[80]; |
| 464 | struct symbol *sym; |
| 465 | int tpnum = -1; |
| 466 | |
| 467 | if (tpnum_exp) |
| 468 | tpnum = parse_and_eval_address (tpnum_exp); |
| 469 | |
| 470 | ALL_TRACEPOINTS (t) |
| 471 | if (tpnum == -1 || tpnum == t->number) |
| 472 | { |
| 473 | extern int addressprint; /* print machine addresses? */ |
| 474 | |
| 475 | if (!found_a_tracepoint++) |
| 476 | { |
| 477 | printf_filtered ("Num Enb "); |
| 478 | if (addressprint) |
| 479 | printf_filtered ("Address "); |
| 480 | printf_filtered ("PassC StepC What\n"); |
| 481 | } |
| 482 | strcpy (wrap_indent, " "); |
| 483 | if (addressprint) |
| 484 | strcat (wrap_indent, " "); |
| 485 | |
| 486 | printf_filtered ("%-3d %-3s ", t->number, |
| 487 | t->enabled == enabled ? "y" : "n"); |
| 488 | if (addressprint) |
| 489 | printf_filtered ("%s ", |
| 490 | local_hex_string_custom ((unsigned long) t->address, |
| 491 | "08l")); |
| 492 | printf_filtered ("%-5d %-5d ", t->pass_count, t->step_count); |
| 493 | |
| 494 | if (t->source_file) |
| 495 | { |
| 496 | sym = find_pc_sect_function (t->address, t->section); |
| 497 | if (sym) |
| 498 | { |
| 499 | fputs_filtered ("in ", gdb_stdout); |
| 500 | fputs_filtered (SYMBOL_SOURCE_NAME (sym), gdb_stdout); |
| 501 | wrap_here (wrap_indent); |
| 502 | fputs_filtered (" at ", gdb_stdout); |
| 503 | } |
| 504 | fputs_filtered (t->source_file, gdb_stdout); |
| 505 | printf_filtered (":%d", t->line_number); |
| 506 | } |
| 507 | else |
| 508 | print_address_symbolic (t->address, gdb_stdout, demangle, " "); |
| 509 | |
| 510 | printf_filtered ("\n"); |
| 511 | if (t->actions) |
| 512 | { |
| 513 | printf_filtered (" Actions for tracepoint %d: \n", t->number); |
| 514 | for (action = t->actions; action; action = action->next) |
| 515 | { |
| 516 | printf_filtered ("\t%s\n", action->action); |
| 517 | } |
| 518 | } |
| 519 | } |
| 520 | if (!found_a_tracepoint) |
| 521 | { |
| 522 | if (tpnum == -1) |
| 523 | printf_filtered ("No tracepoints.\n"); |
| 524 | else |
| 525 | printf_filtered ("No tracepoint number %d.\n", tpnum); |
| 526 | } |
| 527 | } |
| 528 | |
| 529 | /* Optimization: the code to parse an enable, disable, or delete TP command |
| 530 | is virtually identical except for whether it performs an enable, disable, |
| 531 | or delete. Therefore I've combined them into one function with an opcode. |
| 532 | */ |
| 533 | enum tracepoint_opcode |
| 534 | { |
| 535 | enable, |
| 536 | disable, |
| 537 | delete |
| 538 | }; |
| 539 | |
| 540 | /* This function implements enable, disable and delete. */ |
| 541 | static void |
| 542 | tracepoint_operation (t, from_tty, opcode) |
| 543 | struct tracepoint *t; |
| 544 | int from_tty; |
| 545 | enum tracepoint_opcode opcode; |
| 546 | { |
| 547 | struct tracepoint *t2; |
| 548 | |
| 549 | switch (opcode) |
| 550 | { |
| 551 | case enable: |
| 552 | t->enabled = enabled; |
| 553 | if (modify_tracepoint_hook) |
| 554 | modify_tracepoint_hook (t); |
| 555 | break; |
| 556 | case disable: |
| 557 | t->enabled = disabled; |
| 558 | if (modify_tracepoint_hook) |
| 559 | modify_tracepoint_hook (t); |
| 560 | break; |
| 561 | case delete: |
| 562 | if (tracepoint_chain == t) |
| 563 | tracepoint_chain = t->next; |
| 564 | |
| 565 | ALL_TRACEPOINTS (t2) |
| 566 | if (t2->next == t) |
| 567 | { |
| 568 | t2->next = t->next; |
| 569 | break; |
| 570 | } |
| 571 | |
| 572 | /* Let the UI know of any deletions */ |
| 573 | if (delete_tracepoint_hook) |
| 574 | delete_tracepoint_hook (t); |
| 575 | |
| 576 | if (t->addr_string) |
| 577 | free (t->addr_string); |
| 578 | if (t->source_file) |
| 579 | free (t->source_file); |
| 580 | if (t->actions) |
| 581 | free_actions (t); |
| 582 | |
| 583 | free (t); |
| 584 | break; |
| 585 | } |
| 586 | } |
| 587 | |
| 588 | /* Utility: parse a tracepoint number and look it up in the list. */ |
| 589 | struct tracepoint * |
| 590 | get_tracepoint_by_number (arg) |
| 591 | char **arg; |
| 592 | { |
| 593 | struct tracepoint *t; |
| 594 | char *end, *copy; |
| 595 | value_ptr val; |
| 596 | int tpnum; |
| 597 | |
| 598 | if (arg == 0) |
| 599 | error ("Bad tracepoint argument"); |
| 600 | |
| 601 | if (*arg == 0 || **arg == 0) /* empty arg means refer to last tp */ |
| 602 | tpnum = tracepoint_count; |
| 603 | else if (**arg == '$') /* handle convenience variable */ |
| 604 | { |
| 605 | /* Make a copy of the name, so we can null-terminate it |
| 606 | to pass to lookup_internalvar(). */ |
| 607 | end = *arg + 1; |
| 608 | while (isalnum (*end) || *end == '_') |
| 609 | end++; |
| 610 | copy = (char *) alloca (end - *arg); |
| 611 | strncpy (copy, *arg + 1, (end - *arg - 1)); |
| 612 | copy[end - *arg - 1] = '\0'; |
| 613 | *arg = end; |
| 614 | |
| 615 | val = value_of_internalvar (lookup_internalvar (copy)); |
| 616 | if (TYPE_CODE (VALUE_TYPE (val)) != TYPE_CODE_INT) |
| 617 | error ("Convenience variable must have integral type."); |
| 618 | tpnum = (int) value_as_long (val); |
| 619 | } |
| 620 | else |
| 621 | /* handle tracepoint number */ |
| 622 | { |
| 623 | tpnum = strtol (*arg, arg, 0); |
| 624 | if (tpnum == 0) /* possible strtol failure */ |
| 625 | while (**arg && !isspace (**arg)) |
| 626 | (*arg)++; /* advance to next white space, if any */ |
| 627 | } |
| 628 | ALL_TRACEPOINTS (t) |
| 629 | if (t->number == tpnum) |
| 630 | { |
| 631 | return t; |
| 632 | } |
| 633 | printf_unfiltered ("No tracepoint number %d.\n", tpnum); |
| 634 | return NULL; |
| 635 | } |
| 636 | |
| 637 | /* Utility: parse a list of tracepoint numbers, and call a func for each. */ |
| 638 | static void |
| 639 | map_args_over_tracepoints (args, from_tty, opcode) |
| 640 | char *args; |
| 641 | int from_tty; |
| 642 | enum tracepoint_opcode opcode; |
| 643 | { |
| 644 | struct tracepoint *t, *tmp; |
| 645 | int tpnum; |
| 646 | char *cp; |
| 647 | |
| 648 | if (args == 0 || *args == 0) /* do them all */ |
| 649 | ALL_TRACEPOINTS_SAFE (t, tmp) |
| 650 | tracepoint_operation (t, from_tty, opcode); |
| 651 | else |
| 652 | while (*args) |
| 653 | { |
| 654 | QUIT; /* give user option to bail out with ^C */ |
| 655 | t = get_tracepoint_by_number (&args); |
| 656 | if (t) |
| 657 | tracepoint_operation (t, from_tty, opcode); |
| 658 | while (*args == ' ' || *args == '\t') |
| 659 | args++; |
| 660 | } |
| 661 | } |
| 662 | |
| 663 | /* The 'enable trace' command enables tracepoints. Not supported by all targets. */ |
| 664 | static void |
| 665 | enable_trace_command (args, from_tty) |
| 666 | char *args; |
| 667 | int from_tty; |
| 668 | { |
| 669 | dont_repeat (); |
| 670 | map_args_over_tracepoints (args, from_tty, enable); |
| 671 | } |
| 672 | |
| 673 | /* The 'disable trace' command enables tracepoints. Not supported by all targets. */ |
| 674 | static void |
| 675 | disable_trace_command (args, from_tty) |
| 676 | char *args; |
| 677 | int from_tty; |
| 678 | { |
| 679 | dont_repeat (); |
| 680 | map_args_over_tracepoints (args, from_tty, disable); |
| 681 | } |
| 682 | |
| 683 | /* Remove a tracepoint (or all if no argument) */ |
| 684 | static void |
| 685 | delete_trace_command (args, from_tty) |
| 686 | char *args; |
| 687 | int from_tty; |
| 688 | { |
| 689 | dont_repeat (); |
| 690 | if (!args || !*args) /* No args implies all tracepoints; */ |
| 691 | if (from_tty) /* confirm only if from_tty... */ |
| 692 | if (tracepoint_chain) /* and if there are tracepoints to delete! */ |
| 693 | if (!query ("Delete all tracepoints? ")) |
| 694 | return; |
| 695 | |
| 696 | map_args_over_tracepoints (args, from_tty, delete); |
| 697 | } |
| 698 | |
| 699 | /* Set passcount for tracepoint. |
| 700 | |
| 701 | First command argument is passcount, second is tracepoint number. |
| 702 | If tracepoint number omitted, apply to most recently defined. |
| 703 | Also accepts special argument "all". */ |
| 704 | |
| 705 | static void |
| 706 | trace_pass_command (args, from_tty) |
| 707 | char *args; |
| 708 | int from_tty; |
| 709 | { |
| 710 | struct tracepoint *t1 = (struct tracepoint *) -1, *t2; |
| 711 | unsigned long count; |
| 712 | |
| 713 | if (args == 0 || *args == 0) |
| 714 | error ("PASS command requires an argument (count + optional TP num)"); |
| 715 | |
| 716 | count = strtoul (args, &args, 10); /* count comes first, then TP num */ |
| 717 | |
| 718 | while (*args && isspace (*args)) |
| 719 | args++; |
| 720 | |
| 721 | if (*args && strncasecmp (args, "all", 3) == 0) |
| 722 | args += 3; /* skip special argument "all" */ |
| 723 | else |
| 724 | t1 = get_tracepoint_by_number (&args); |
| 725 | |
| 726 | if (*args) |
| 727 | error ("Junk at end of arguments."); |
| 728 | |
| 729 | if (t1 == NULL) |
| 730 | return; /* error, bad tracepoint number */ |
| 731 | |
| 732 | ALL_TRACEPOINTS (t2) |
| 733 | if (t1 == (struct tracepoint *) -1 || t1 == t2) |
| 734 | { |
| 735 | t2->pass_count = count; |
| 736 | if (modify_tracepoint_hook) |
| 737 | modify_tracepoint_hook (t2); |
| 738 | if (from_tty) |
| 739 | printf_filtered ("Setting tracepoint %d's passcount to %d\n", |
| 740 | t2->number, count); |
| 741 | } |
| 742 | } |
| 743 | |
| 744 | /* ACTIONS functions: */ |
| 745 | |
| 746 | /* Prototypes for action-parsing utility commands */ |
| 747 | static void read_actions PARAMS ((struct tracepoint *)); |
| 748 | static char *parse_and_eval_memrange PARAMS ((char *, |
| 749 | CORE_ADDR, |
| 750 | long *, |
| 751 | bfd_signed_vma *, |
| 752 | long *)); |
| 753 | |
| 754 | /* The three functions: |
| 755 | collect_pseudocommand, |
| 756 | while_stepping_pseudocommand, and |
| 757 | end_actions_pseudocommand |
| 758 | are placeholders for "commands" that are actually ONLY to be used |
| 759 | within a tracepoint action list. If the actual function is ever called, |
| 760 | it means that somebody issued the "command" at the top level, |
| 761 | which is always an error. */ |
| 762 | |
| 763 | static void |
| 764 | end_actions_pseudocommand (args, from_tty) |
| 765 | char *args; |
| 766 | int from_tty; |
| 767 | { |
| 768 | error ("This command cannot be used at the top level."); |
| 769 | } |
| 770 | |
| 771 | static void |
| 772 | while_stepping_pseudocommand (args, from_tty) |
| 773 | char *args; |
| 774 | int from_tty; |
| 775 | { |
| 776 | error ("This command can only be used in a tracepoint actions list."); |
| 777 | } |
| 778 | |
| 779 | static void |
| 780 | collect_pseudocommand (args, from_tty) |
| 781 | char *args; |
| 782 | int from_tty; |
| 783 | { |
| 784 | error ("This command can only be used in a tracepoint actions list."); |
| 785 | } |
| 786 | |
| 787 | /* Enter a list of actions for a tracepoint. */ |
| 788 | static void |
| 789 | trace_actions_command (args, from_tty) |
| 790 | char *args; |
| 791 | int from_tty; |
| 792 | { |
| 793 | struct tracepoint *t; |
| 794 | char *actions; |
| 795 | char tmpbuf[128]; |
| 796 | char *end_msg = "End with a line saying just \"end\"."; |
| 797 | |
| 798 | t = get_tracepoint_by_number (&args); |
| 799 | if (t) |
| 800 | { |
| 801 | sprintf (tmpbuf, "Enter actions for tracepoint %d, one per line.", |
| 802 | t->number); |
| 803 | |
| 804 | if (from_tty) |
| 805 | { |
| 806 | if (readline_begin_hook) |
| 807 | (*readline_begin_hook) ("%s %s\n", tmpbuf, end_msg); |
| 808 | else if (input_from_terminal_p ()) |
| 809 | printf_filtered ("%s\n%s\n", tmpbuf, end_msg); |
| 810 | } |
| 811 | |
| 812 | free_actions (t); |
| 813 | t->step_count = 0; /* read_actions may set this */ |
| 814 | read_actions (t); |
| 815 | |
| 816 | if (readline_end_hook) |
| 817 | (*readline_end_hook) (); |
| 818 | |
| 819 | /* tracepoints_changed () */ |
| 820 | } |
| 821 | /* else error, just return; */ |
| 822 | } |
| 823 | |
| 824 | /* worker function */ |
| 825 | static void |
| 826 | read_actions (t) |
| 827 | struct tracepoint *t; |
| 828 | { |
| 829 | char *line; |
| 830 | char *prompt1 = "> ", *prompt2 = " > "; |
| 831 | char *prompt = prompt1; |
| 832 | enum actionline_type linetype; |
| 833 | extern FILE *instream; |
| 834 | struct action_line *next = NULL, *temp; |
| 835 | struct cleanup *old_chain; |
| 836 | |
| 837 | /* Control-C quits instantly if typed while in this loop |
| 838 | since it should not wait until the user types a newline. */ |
| 839 | immediate_quit++; |
| 840 | #ifdef STOP_SIGNAL |
| 841 | if (job_control) |
| 842 | { |
| 843 | if (async_p) |
| 844 | signal (STOP_SIGNAL, handle_stop_sig); |
| 845 | else |
| 846 | signal (STOP_SIGNAL, stop_sig); |
| 847 | } |
| 848 | #endif |
| 849 | old_chain = make_cleanup ((make_cleanup_func) free_actions, (void *) t); |
| 850 | while (1) |
| 851 | { |
| 852 | /* Make sure that all output has been output. Some machines may let |
| 853 | you get away with leaving out some of the gdb_flush, but not all. */ |
| 854 | wrap_here (""); |
| 855 | gdb_flush (gdb_stdout); |
| 856 | gdb_flush (gdb_stderr); |
| 857 | |
| 858 | if (readline_hook && instream == NULL) |
| 859 | line = (*readline_hook) (prompt); |
| 860 | else if (instream == stdin && ISATTY (instream)) |
| 861 | { |
| 862 | line = readline (prompt); |
| 863 | if (line && *line) /* add it to command history */ |
| 864 | add_history (line); |
| 865 | } |
| 866 | else |
| 867 | line = gdb_readline (0); |
| 868 | |
| 869 | linetype = validate_actionline (&line, t); |
| 870 | if (linetype == BADLINE) |
| 871 | continue; /* already warned -- collect another line */ |
| 872 | |
| 873 | temp = xmalloc (sizeof (struct action_line)); |
| 874 | temp->next = NULL; |
| 875 | temp->action = line; |
| 876 | |
| 877 | if (next == NULL) /* first action for this tracepoint? */ |
| 878 | t->actions = next = temp; |
| 879 | else |
| 880 | { |
| 881 | next->next = temp; |
| 882 | next = temp; |
| 883 | } |
| 884 | |
| 885 | if (linetype == STEPPING) /* begin "while-stepping" */ |
| 886 | { |
| 887 | if (prompt == prompt2) |
| 888 | { |
| 889 | warning ("Already processing 'while-stepping'"); |
| 890 | continue; |
| 891 | } |
| 892 | else |
| 893 | prompt = prompt2; /* change prompt for stepping actions */ |
| 894 | } |
| 895 | else if (linetype == END) |
| 896 | { |
| 897 | if (prompt == prompt2) |
| 898 | { |
| 899 | prompt = prompt1; /* end of single-stepping actions */ |
| 900 | } |
| 901 | else |
| 902 | { /* end of actions */ |
| 903 | if (t->actions->next == NULL) |
| 904 | { |
| 905 | /* an "end" all by itself with no other actions means |
| 906 | this tracepoint has no actions. Discard empty list. */ |
| 907 | free_actions (t); |
| 908 | } |
| 909 | break; |
| 910 | } |
| 911 | } |
| 912 | } |
| 913 | #ifdef STOP_SIGNAL |
| 914 | if (job_control) |
| 915 | signal (STOP_SIGNAL, SIG_DFL); |
| 916 | #endif |
| 917 | immediate_quit = 0; |
| 918 | discard_cleanups (old_chain); |
| 919 | } |
| 920 | |
| 921 | /* worker function */ |
| 922 | enum actionline_type |
| 923 | validate_actionline (line, t) |
| 924 | char **line; |
| 925 | struct tracepoint *t; |
| 926 | { |
| 927 | struct cmd_list_element *c; |
| 928 | struct expression *exp = NULL; |
| 929 | value_ptr temp, temp2; |
| 930 | struct cleanup *old_chain = NULL; |
| 931 | char *p; |
| 932 | |
| 933 | for (p = *line; isspace (*p);) |
| 934 | p++; |
| 935 | |
| 936 | /* symbol lookup etc. */ |
| 937 | if (*p == '\0') /* empty line: just prompt for another line. */ |
| 938 | return BADLINE; |
| 939 | |
| 940 | if (*p == '#') /* comment line */ |
| 941 | return GENERIC; |
| 942 | |
| 943 | c = lookup_cmd (&p, cmdlist, "", -1, 1); |
| 944 | if (c == 0) |
| 945 | { |
| 946 | warning ("'%s' is not an action that I know, or is ambiguous.", p); |
| 947 | return BADLINE; |
| 948 | } |
| 949 | |
| 950 | if (c->function.cfunc == collect_pseudocommand) |
| 951 | { |
| 952 | struct agent_expr *aexpr; |
| 953 | struct agent_reqs areqs; |
| 954 | |
| 955 | do |
| 956 | { /* repeat over a comma-separated list */ |
| 957 | QUIT; /* allow user to bail out with ^C */ |
| 958 | while (isspace (*p)) |
| 959 | p++; |
| 960 | |
| 961 | if (*p == '$') /* look for special pseudo-symbols */ |
| 962 | { |
| 963 | long typecode, size; |
| 964 | bfd_signed_vma offset; |
| 965 | |
| 966 | if ((0 == strncasecmp ("reg", p + 1, 3)) || |
| 967 | (0 == strncasecmp ("arg", p + 1, 3)) || |
| 968 | (0 == strncasecmp ("loc", p + 1, 3))) |
| 969 | { |
| 970 | p = strchr (p, ','); |
| 971 | continue; |
| 972 | } |
| 973 | /* else fall thru, treat p as an expression and parse it! */ |
| 974 | } |
| 975 | exp = parse_exp_1 (&p, block_for_pc (t->address), 1); |
| 976 | old_chain = make_cleanup ((make_cleanup_func) free_current_contents, |
| 977 | &exp); |
| 978 | |
| 979 | if (exp->elts[0].opcode == OP_VAR_VALUE) |
| 980 | { |
| 981 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) |
| 982 | { |
| 983 | warning ("%s is constant (value %d): will not be collected.", |
| 984 | SYMBOL_NAME (exp->elts[2].symbol), |
| 985 | SYMBOL_VALUE (exp->elts[2].symbol)); |
| 986 | return BADLINE; |
| 987 | } |
| 988 | else if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_OPTIMIZED_OUT) |
| 989 | { |
| 990 | warning ("%s is optimized away and cannot be collected.", |
| 991 | SYMBOL_NAME (exp->elts[2].symbol)); |
| 992 | return BADLINE; |
| 993 | } |
| 994 | } |
| 995 | |
| 996 | /* we have something to collect, make sure that the expr to |
| 997 | bytecode translator can handle it and that it's not too long */ |
| 998 | aexpr = gen_trace_for_expr (t->address, exp); |
| 999 | (void) make_cleanup ((make_cleanup_func) free_agent_expr, aexpr); |
| 1000 | |
| 1001 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
| 1002 | error ("expression too complicated, try simplifying"); |
| 1003 | |
| 1004 | ax_reqs (aexpr, &areqs); |
| 1005 | (void) make_cleanup (free, areqs.reg_mask); |
| 1006 | |
| 1007 | if (areqs.flaw != agent_flaw_none) |
| 1008 | error ("malformed expression"); |
| 1009 | |
| 1010 | if (areqs.min_height < 0) |
| 1011 | error ("gdb: Internal error: expression has min height < 0"); |
| 1012 | |
| 1013 | if (areqs.max_height > 20) |
| 1014 | error ("expression too complicated, try simplifying"); |
| 1015 | |
| 1016 | do_cleanups (old_chain); |
| 1017 | } |
| 1018 | while (p && *p++ == ','); |
| 1019 | return GENERIC; |
| 1020 | } |
| 1021 | else if (c->function.cfunc == while_stepping_pseudocommand) |
| 1022 | { |
| 1023 | char *steparg; /* in case warning is necessary */ |
| 1024 | |
| 1025 | while (isspace (*p)) |
| 1026 | p++; |
| 1027 | steparg = p; |
| 1028 | |
| 1029 | if (*p == '\0' || |
| 1030 | (t->step_count = strtol (p, &p, 0)) == 0) |
| 1031 | { |
| 1032 | warning ("bad step-count: command ignored.", *line); |
| 1033 | return BADLINE; |
| 1034 | } |
| 1035 | return STEPPING; |
| 1036 | } |
| 1037 | else if (c->function.cfunc == end_actions_pseudocommand) |
| 1038 | return END; |
| 1039 | else |
| 1040 | { |
| 1041 | warning ("'%s' is not a supported tracepoint action.", *line); |
| 1042 | return BADLINE; |
| 1043 | } |
| 1044 | } |
| 1045 | |
| 1046 | /* worker function */ |
| 1047 | void |
| 1048 | free_actions (t) |
| 1049 | struct tracepoint *t; |
| 1050 | { |
| 1051 | struct action_line *line, *next; |
| 1052 | |
| 1053 | for (line = t->actions; line; line = next) |
| 1054 | { |
| 1055 | next = line->next; |
| 1056 | if (line->action) |
| 1057 | free (line->action); |
| 1058 | free (line); |
| 1059 | } |
| 1060 | t->actions = NULL; |
| 1061 | } |
| 1062 | |
| 1063 | struct memrange |
| 1064 | { |
| 1065 | int type; /* 0 for absolute memory range, else basereg number */ |
| 1066 | bfd_signed_vma start; |
| 1067 | bfd_signed_vma end; |
| 1068 | }; |
| 1069 | |
| 1070 | struct collection_list |
| 1071 | { |
| 1072 | unsigned char regs_mask[8]; /* room for up to 256 regs */ |
| 1073 | long listsize; |
| 1074 | long next_memrange; |
| 1075 | struct memrange *list; |
| 1076 | long aexpr_listsize; /* size of array pointed to by expr_list elt */ |
| 1077 | long next_aexpr_elt; |
| 1078 | struct agent_expr **aexpr_list; |
| 1079 | |
| 1080 | } |
| 1081 | tracepoint_list, stepping_list; |
| 1082 | |
| 1083 | /* MEMRANGE functions: */ |
| 1084 | |
| 1085 | static int memrange_cmp PARAMS ((const void *, const void *)); |
| 1086 | |
| 1087 | /* compare memranges for qsort */ |
| 1088 | static int |
| 1089 | memrange_cmp (va, vb) |
| 1090 | const void *va; |
| 1091 | const void *vb; |
| 1092 | { |
| 1093 | const struct memrange *a = va, *b = vb; |
| 1094 | |
| 1095 | if (a->type < b->type) |
| 1096 | return -1; |
| 1097 | if (a->type > b->type) |
| 1098 | return 1; |
| 1099 | if (a->type == 0) |
| 1100 | { |
| 1101 | if ((bfd_vma) a->start < (bfd_vma) b->start) |
| 1102 | return -1; |
| 1103 | if ((bfd_vma) a->start > (bfd_vma) b->start) |
| 1104 | return 1; |
| 1105 | } |
| 1106 | else |
| 1107 | { |
| 1108 | if (a->start < b->start) |
| 1109 | return -1; |
| 1110 | if (a->start > b->start) |
| 1111 | return 1; |
| 1112 | } |
| 1113 | return 0; |
| 1114 | } |
| 1115 | |
| 1116 | /* Sort the memrange list using qsort, and merge adjacent memranges */ |
| 1117 | static void |
| 1118 | memrange_sortmerge (memranges) |
| 1119 | struct collection_list *memranges; |
| 1120 | { |
| 1121 | int a, b; |
| 1122 | |
| 1123 | qsort (memranges->list, memranges->next_memrange, |
| 1124 | sizeof (struct memrange), memrange_cmp); |
| 1125 | if (memranges->next_memrange > 0) |
| 1126 | { |
| 1127 | for (a = 0, b = 1; b < memranges->next_memrange; b++) |
| 1128 | { |
| 1129 | if (memranges->list[a].type == memranges->list[b].type && |
| 1130 | memranges->list[b].start - memranges->list[a].end <= |
| 1131 | MAX_REGISTER_VIRTUAL_SIZE) |
| 1132 | { |
| 1133 | /* memrange b starts before memrange a ends; merge them. */ |
| 1134 | if (memranges->list[b].end > memranges->list[a].end) |
| 1135 | memranges->list[a].end = memranges->list[b].end; |
| 1136 | continue; /* next b, same a */ |
| 1137 | } |
| 1138 | a++; /* next a */ |
| 1139 | if (a != b) |
| 1140 | memcpy (&memranges->list[a], &memranges->list[b], |
| 1141 | sizeof (struct memrange)); |
| 1142 | } |
| 1143 | memranges->next_memrange = a + 1; |
| 1144 | } |
| 1145 | } |
| 1146 | |
| 1147 | /* Add a register to a collection list */ |
| 1148 | static void |
| 1149 | add_register (collection, regno) |
| 1150 | struct collection_list *collection; |
| 1151 | unsigned long regno; |
| 1152 | { |
| 1153 | if (info_verbose) |
| 1154 | printf_filtered ("collect register %d\n", regno); |
| 1155 | if (regno > (8 * sizeof (collection->regs_mask))) |
| 1156 | error ("Internal: register number %d too large for tracepoint", |
| 1157 | regno); |
| 1158 | collection->regs_mask[regno / 8] |= 1 << (regno % 8); |
| 1159 | } |
| 1160 | |
| 1161 | /* Add a memrange to a collection list */ |
| 1162 | static void |
| 1163 | add_memrange (memranges, type, base, len) |
| 1164 | struct collection_list *memranges; |
| 1165 | int type; |
| 1166 | bfd_signed_vma base; |
| 1167 | unsigned long len; |
| 1168 | { |
| 1169 | if (info_verbose) |
| 1170 | printf_filtered ("(%d,0x%x,%d)\n", type, base, len); |
| 1171 | /* type: 0 == memory, n == basereg */ |
| 1172 | memranges->list[memranges->next_memrange].type = type; |
| 1173 | /* base: addr if memory, offset if reg relative. */ |
| 1174 | memranges->list[memranges->next_memrange].start = base; |
| 1175 | /* len: we actually save end (base + len) for convenience */ |
| 1176 | memranges->list[memranges->next_memrange].end = base + len; |
| 1177 | memranges->next_memrange++; |
| 1178 | if (memranges->next_memrange >= memranges->listsize) |
| 1179 | { |
| 1180 | memranges->listsize *= 2; |
| 1181 | memranges->list = xrealloc (memranges->list, |
| 1182 | memranges->listsize); |
| 1183 | } |
| 1184 | |
| 1185 | if (type != -1) /* better collect the base register! */ |
| 1186 | add_register (memranges, type); |
| 1187 | } |
| 1188 | |
| 1189 | /* Add a symbol to a collection list */ |
| 1190 | static void |
| 1191 | collect_symbol (collect, sym, frame_regno, frame_offset) |
| 1192 | struct collection_list *collect; |
| 1193 | struct symbol *sym; |
| 1194 | long frame_regno; |
| 1195 | long frame_offset; |
| 1196 | { |
| 1197 | unsigned long len; |
| 1198 | unsigned long reg; |
| 1199 | bfd_signed_vma offset; |
| 1200 | |
| 1201 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
| 1202 | switch (SYMBOL_CLASS (sym)) |
| 1203 | { |
| 1204 | default: |
| 1205 | printf_filtered ("%s: don't know symbol class %d\n", |
| 1206 | SYMBOL_NAME (sym), SYMBOL_CLASS (sym)); |
| 1207 | break; |
| 1208 | case LOC_CONST: |
| 1209 | printf_filtered ("%s is constant, value is %d: will not be collected.\n", |
| 1210 | SYMBOL_NAME (sym), SYMBOL_VALUE (sym)); |
| 1211 | break; |
| 1212 | case LOC_STATIC: |
| 1213 | offset = SYMBOL_VALUE_ADDRESS (sym); |
| 1214 | if (info_verbose) |
| 1215 | printf_filtered ("LOC_STATIC %s: collect %d bytes at 0x%08x\n", |
| 1216 | SYMBOL_NAME (sym), len, offset); |
| 1217 | add_memrange (collect, -1, offset, len); /* 0 == memory */ |
| 1218 | break; |
| 1219 | case LOC_REGISTER: |
| 1220 | case LOC_REGPARM: |
| 1221 | reg = SYMBOL_VALUE (sym); |
| 1222 | if (info_verbose) |
| 1223 | printf_filtered ("LOC_REG[parm] %s: ", SYMBOL_NAME (sym)); |
| 1224 | add_register (collect, reg); |
| 1225 | /* check for doubles stored in two registers */ |
| 1226 | /* FIXME: how about larger types stored in 3 or more regs? */ |
| 1227 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT && |
| 1228 | len > REGISTER_RAW_SIZE (reg)) |
| 1229 | add_register (collect, reg + 1); |
| 1230 | break; |
| 1231 | case LOC_REF_ARG: |
| 1232 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); |
| 1233 | printf_filtered (" (will not collect %s)\n", |
| 1234 | SYMBOL_NAME (sym)); |
| 1235 | break; |
| 1236 | case LOC_ARG: |
| 1237 | reg = frame_regno; |
| 1238 | offset = frame_offset + SYMBOL_VALUE (sym); |
| 1239 | if (info_verbose) |
| 1240 | { |
| 1241 | printf_filtered ("LOC_LOCAL %s: Collect %d bytes at offset", |
| 1242 | SYMBOL_NAME (sym), len); |
| 1243 | printf_filtered (" %d from frame ptr reg %d\n", offset, reg); |
| 1244 | } |
| 1245 | add_memrange (collect, reg, offset, len); |
| 1246 | break; |
| 1247 | case LOC_REGPARM_ADDR: |
| 1248 | reg = SYMBOL_VALUE (sym); |
| 1249 | offset = 0; |
| 1250 | if (info_verbose) |
| 1251 | { |
| 1252 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %d bytes at offset", |
| 1253 | SYMBOL_NAME (sym), len); |
| 1254 | printf_filtered (" %d from reg %d\n", offset, reg); |
| 1255 | } |
| 1256 | add_memrange (collect, reg, offset, len); |
| 1257 | break; |
| 1258 | case LOC_LOCAL: |
| 1259 | case LOC_LOCAL_ARG: |
| 1260 | reg = frame_regno; |
| 1261 | offset = frame_offset + SYMBOL_VALUE (sym); |
| 1262 | if (info_verbose) |
| 1263 | { |
| 1264 | printf_filtered ("LOC_LOCAL %s: Collect %d bytes at offset", |
| 1265 | SYMBOL_NAME (sym), len); |
| 1266 | printf_filtered (" %d from frame ptr reg %d\n", offset, reg); |
| 1267 | } |
| 1268 | add_memrange (collect, reg, offset, len); |
| 1269 | break; |
| 1270 | case LOC_BASEREG: |
| 1271 | case LOC_BASEREG_ARG: |
| 1272 | reg = SYMBOL_BASEREG (sym); |
| 1273 | offset = SYMBOL_VALUE (sym); |
| 1274 | if (info_verbose) |
| 1275 | { |
| 1276 | printf_filtered ("LOC_BASEREG %s: collect %d bytes at offset %d from basereg %d\n", |
| 1277 | SYMBOL_NAME (sym), len, offset, reg); |
| 1278 | } |
| 1279 | add_memrange (collect, reg, offset, len); |
| 1280 | break; |
| 1281 | case LOC_UNRESOLVED: |
| 1282 | printf_filtered ("Don't know LOC_UNRESOLVED %s\n", SYMBOL_NAME (sym)); |
| 1283 | break; |
| 1284 | case LOC_OPTIMIZED_OUT: |
| 1285 | printf_filtered ("%s has been optimized out of existance.\n", |
| 1286 | SYMBOL_NAME (sym)); |
| 1287 | break; |
| 1288 | } |
| 1289 | } |
| 1290 | |
| 1291 | /* Add all locals (or args) symbols to collection list */ |
| 1292 | static void |
| 1293 | add_local_symbols (collect, pc, frame_regno, frame_offset, type) |
| 1294 | struct collection_list *collect; |
| 1295 | CORE_ADDR pc; |
| 1296 | long frame_regno; |
| 1297 | long frame_offset; |
| 1298 | int type; |
| 1299 | { |
| 1300 | struct symbol *sym; |
| 1301 | struct block *block; |
| 1302 | int i, nsyms, count = 0; |
| 1303 | |
| 1304 | block = block_for_pc (pc); |
| 1305 | while (block != 0) |
| 1306 | { |
| 1307 | QUIT; /* allow user to bail out with ^C */ |
| 1308 | nsyms = BLOCK_NSYMS (block); |
| 1309 | for (i = 0; i < nsyms; i++) |
| 1310 | { |
| 1311 | sym = BLOCK_SYM (block, i); |
| 1312 | switch (SYMBOL_CLASS (sym)) |
| 1313 | { |
| 1314 | case LOC_LOCAL: |
| 1315 | case LOC_STATIC: |
| 1316 | case LOC_REGISTER: |
| 1317 | case LOC_BASEREG: |
| 1318 | if (type == 'L') /* collecting Locals */ |
| 1319 | { |
| 1320 | count++; |
| 1321 | collect_symbol (collect, sym, frame_regno, frame_offset); |
| 1322 | } |
| 1323 | break; |
| 1324 | case LOC_ARG: |
| 1325 | case LOC_LOCAL_ARG: |
| 1326 | case LOC_REF_ARG: |
| 1327 | case LOC_REGPARM: |
| 1328 | case LOC_REGPARM_ADDR: |
| 1329 | case LOC_BASEREG_ARG: |
| 1330 | if (type == 'A') /* collecting Arguments */ |
| 1331 | { |
| 1332 | count++; |
| 1333 | collect_symbol (collect, sym, frame_regno, frame_offset); |
| 1334 | } |
| 1335 | } |
| 1336 | } |
| 1337 | if (BLOCK_FUNCTION (block)) |
| 1338 | break; |
| 1339 | else |
| 1340 | block = BLOCK_SUPERBLOCK (block); |
| 1341 | } |
| 1342 | if (count == 0) |
| 1343 | warning ("No %s found in scope.", type == 'L' ? "locals" : "args"); |
| 1344 | } |
| 1345 | |
| 1346 | /* worker function */ |
| 1347 | static void |
| 1348 | clear_collection_list (list) |
| 1349 | struct collection_list *list; |
| 1350 | { |
| 1351 | int ndx; |
| 1352 | |
| 1353 | list->next_memrange = 0; |
| 1354 | for (ndx = 0; ndx < list->next_aexpr_elt; ndx++) |
| 1355 | { |
| 1356 | free_agent_expr (list->aexpr_list[ndx]); |
| 1357 | list->aexpr_list[ndx] = NULL; |
| 1358 | } |
| 1359 | list->next_aexpr_elt = 0; |
| 1360 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); |
| 1361 | } |
| 1362 | |
| 1363 | /* reduce a collection list to string form (for gdb protocol) */ |
| 1364 | static char ** |
| 1365 | stringify_collection_list (list, string) |
| 1366 | struct collection_list *list; |
| 1367 | char *string; |
| 1368 | { |
| 1369 | char temp_buf[2048]; |
| 1370 | int count; |
| 1371 | int ndx = 0; |
| 1372 | char *(*str_list)[]; |
| 1373 | char *end; |
| 1374 | long i; |
| 1375 | |
| 1376 | count = 1 + list->next_memrange + list->next_aexpr_elt + 1; |
| 1377 | str_list = (char *(*)[]) xmalloc (count * sizeof (char *)); |
| 1378 | |
| 1379 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) |
| 1380 | if (list->regs_mask[i] != 0) /* skip leading zeroes in regs_mask */ |
| 1381 | break; |
| 1382 | if (list->regs_mask[i] != 0) /* prepare to send regs_mask to the stub */ |
| 1383 | { |
| 1384 | if (info_verbose) |
| 1385 | printf_filtered ("\nCollecting registers (mask): 0x"); |
| 1386 | end = temp_buf; |
| 1387 | *end++ = 'R'; |
| 1388 | for (; i >= 0; i--) |
| 1389 | { |
| 1390 | QUIT; /* allow user to bail out with ^C */ |
| 1391 | if (info_verbose) |
| 1392 | printf_filtered ("%02X", list->regs_mask[i]); |
| 1393 | sprintf (end, "%02X", list->regs_mask[i]); |
| 1394 | end += 2; |
| 1395 | } |
| 1396 | (*str_list)[ndx] = savestring (temp_buf, end - temp_buf); |
| 1397 | ndx++; |
| 1398 | } |
| 1399 | if (info_verbose) |
| 1400 | printf_filtered ("\n"); |
| 1401 | if (list->next_memrange > 0 && info_verbose) |
| 1402 | printf_filtered ("Collecting memranges: \n"); |
| 1403 | for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++) |
| 1404 | { |
| 1405 | QUIT; /* allow user to bail out with ^C */ |
| 1406 | if (info_verbose) |
| 1407 | printf_filtered ("(%d, 0x%x, %d)\n", |
| 1408 | list->list[i].type, |
| 1409 | list->list[i].start, |
| 1410 | list->list[i].end - list->list[i].start); |
| 1411 | if (count + 27 > MAX_AGENT_EXPR_LEN) |
| 1412 | { |
| 1413 | (*str_list)[ndx] = savestring (temp_buf, count); |
| 1414 | ndx++; |
| 1415 | count = 0; |
| 1416 | end = temp_buf; |
| 1417 | } |
| 1418 | sprintf (end, "M%X,%X,%X", |
| 1419 | list->list[i].type, |
| 1420 | list->list[i].start, |
| 1421 | list->list[i].end - list->list[i].start); |
| 1422 | count += strlen (end); |
| 1423 | end += strlen (end); |
| 1424 | } |
| 1425 | |
| 1426 | for (i = 0; i < list->next_aexpr_elt; i++) |
| 1427 | { |
| 1428 | QUIT; /* allow user to bail out with ^C */ |
| 1429 | if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN) |
| 1430 | { |
| 1431 | (*str_list)[ndx] = savestring (temp_buf, count); |
| 1432 | ndx++; |
| 1433 | count = 0; |
| 1434 | end = temp_buf; |
| 1435 | } |
| 1436 | sprintf (end, "X%08X,", list->aexpr_list[i]->len); |
| 1437 | end += 10; /* 'X' + 8 hex digits + ',' */ |
| 1438 | count += 10; |
| 1439 | |
| 1440 | end = mem2hex (list->aexpr_list[i]->buf, end, list->aexpr_list[i]->len); |
| 1441 | count += 2 * list->aexpr_list[i]->len; |
| 1442 | } |
| 1443 | |
| 1444 | if (count != 0) |
| 1445 | { |
| 1446 | (*str_list)[ndx] = savestring (temp_buf, count); |
| 1447 | ndx++; |
| 1448 | count = 0; |
| 1449 | end = temp_buf; |
| 1450 | } |
| 1451 | (*str_list)[ndx] = NULL; |
| 1452 | |
| 1453 | if (ndx == 0) |
| 1454 | return NULL; |
| 1455 | else |
| 1456 | return *str_list; |
| 1457 | } |
| 1458 | |
| 1459 | static void |
| 1460 | free_actions_list_cleanup_wrapper (al) |
| 1461 | void *al; |
| 1462 | { |
| 1463 | free_actions_list (al); |
| 1464 | } |
| 1465 | |
| 1466 | static void |
| 1467 | free_actions_list (actions_list) |
| 1468 | char **actions_list; |
| 1469 | { |
| 1470 | int ndx; |
| 1471 | |
| 1472 | if (actions_list == 0) |
| 1473 | return; |
| 1474 | |
| 1475 | for (ndx = 0; actions_list[ndx]; ndx++) |
| 1476 | free (actions_list[ndx]); |
| 1477 | |
| 1478 | free (actions_list); |
| 1479 | } |
| 1480 | |
| 1481 | /* render all actions into gdb protocol */ |
| 1482 | static void |
| 1483 | encode_actions (t, tdp_actions, stepping_actions) |
| 1484 | struct tracepoint *t; |
| 1485 | char ***tdp_actions; |
| 1486 | char ***stepping_actions; |
| 1487 | { |
| 1488 | static char tdp_buff[2048], step_buff[2048]; |
| 1489 | char *action_exp; |
| 1490 | struct expression *exp = NULL; |
| 1491 | struct action_line *action; |
| 1492 | bfd_signed_vma offset; |
| 1493 | long i; |
| 1494 | value_ptr tempval; |
| 1495 | struct collection_list *collect; |
| 1496 | struct cmd_list_element *cmd; |
| 1497 | struct agent_expr *aexpr; |
| 1498 | long frame_reg, frame_offset; |
| 1499 | |
| 1500 | |
| 1501 | clear_collection_list (&tracepoint_list); |
| 1502 | clear_collection_list (&stepping_list); |
| 1503 | collect = &tracepoint_list; |
| 1504 | |
| 1505 | *tdp_actions = NULL; |
| 1506 | *stepping_actions = NULL; |
| 1507 | |
| 1508 | TARGET_VIRTUAL_FRAME_POINTER (t->address, &frame_reg, &frame_offset); |
| 1509 | |
| 1510 | for (action = t->actions; action; action = action->next) |
| 1511 | { |
| 1512 | QUIT; /* allow user to bail out with ^C */ |
| 1513 | action_exp = action->action; |
| 1514 | while (isspace (*action_exp)) |
| 1515 | action_exp++; |
| 1516 | |
| 1517 | if (*action_exp == '#') /* comment line */ |
| 1518 | return; |
| 1519 | |
| 1520 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
| 1521 | if (cmd == 0) |
| 1522 | error ("Bad action list item: %s", action_exp); |
| 1523 | |
| 1524 | if (cmd->function.cfunc == collect_pseudocommand) |
| 1525 | { |
| 1526 | do |
| 1527 | { /* repeat over a comma-separated list */ |
| 1528 | QUIT; /* allow user to bail out with ^C */ |
| 1529 | while (isspace (*action_exp)) |
| 1530 | action_exp++; |
| 1531 | |
| 1532 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
| 1533 | { |
| 1534 | for (i = 0; i < NUM_REGS; i++) |
| 1535 | add_register (collect, i); |
| 1536 | action_exp = strchr (action_exp, ','); /* more? */ |
| 1537 | } |
| 1538 | else if (0 == strncasecmp ("$arg", action_exp, 4)) |
| 1539 | { |
| 1540 | add_local_symbols (collect, |
| 1541 | t->address, |
| 1542 | frame_reg, |
| 1543 | frame_offset, |
| 1544 | 'A'); |
| 1545 | action_exp = strchr (action_exp, ','); /* more? */ |
| 1546 | } |
| 1547 | else if (0 == strncasecmp ("$loc", action_exp, 4)) |
| 1548 | { |
| 1549 | add_local_symbols (collect, |
| 1550 | t->address, |
| 1551 | frame_reg, |
| 1552 | frame_offset, |
| 1553 | 'L'); |
| 1554 | action_exp = strchr (action_exp, ','); /* more? */ |
| 1555 | } |
| 1556 | else |
| 1557 | { |
| 1558 | unsigned long addr, len; |
| 1559 | struct cleanup *old_chain = NULL; |
| 1560 | struct cleanup *old_chain1 = NULL; |
| 1561 | struct agent_reqs areqs; |
| 1562 | |
| 1563 | exp = parse_exp_1 (&action_exp, block_for_pc (t->address), 1); |
| 1564 | old_chain = make_cleanup ((make_cleanup_func) |
| 1565 | free_current_contents, &exp); |
| 1566 | |
| 1567 | switch (exp->elts[0].opcode) |
| 1568 | { |
| 1569 | case OP_REGISTER: |
| 1570 | i = exp->elts[1].longconst; |
| 1571 | if (info_verbose) |
| 1572 | printf_filtered ("OP_REGISTER: "); |
| 1573 | add_register (collect, i); |
| 1574 | break; |
| 1575 | |
| 1576 | case UNOP_MEMVAL: |
| 1577 | /* safe because we know it's a simple expression */ |
| 1578 | tempval = evaluate_expression (exp); |
| 1579 | addr = VALUE_ADDRESS (tempval) + VALUE_OFFSET (tempval); |
| 1580 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); |
| 1581 | add_memrange (collect, -1, addr, len); |
| 1582 | break; |
| 1583 | |
| 1584 | case OP_VAR_VALUE: |
| 1585 | collect_symbol (collect, |
| 1586 | exp->elts[2].symbol, |
| 1587 | frame_reg, |
| 1588 | frame_offset); |
| 1589 | break; |
| 1590 | |
| 1591 | default: /* full-fledged expression */ |
| 1592 | aexpr = gen_trace_for_expr (t->address, exp); |
| 1593 | |
| 1594 | old_chain1 = make_cleanup ((make_cleanup_func) |
| 1595 | free_agent_expr, aexpr); |
| 1596 | |
| 1597 | ax_reqs (aexpr, &areqs); |
| 1598 | if (areqs.flaw != agent_flaw_none) |
| 1599 | error ("malformed expression"); |
| 1600 | |
| 1601 | if (areqs.min_height < 0) |
| 1602 | error ("gdb: Internal error: expression has min height < 0"); |
| 1603 | if (areqs.max_height > 20) |
| 1604 | error ("expression too complicated, try simplifying"); |
| 1605 | |
| 1606 | discard_cleanups (old_chain1); |
| 1607 | add_aexpr (collect, aexpr); |
| 1608 | |
| 1609 | /* take care of the registers */ |
| 1610 | if (areqs.reg_mask_len > 0) |
| 1611 | { |
| 1612 | int ndx1; |
| 1613 | int ndx2; |
| 1614 | |
| 1615 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) |
| 1616 | { |
| 1617 | QUIT; /* allow user to bail out with ^C */ |
| 1618 | if (areqs.reg_mask[ndx1] != 0) |
| 1619 | { |
| 1620 | /* assume chars have 8 bits */ |
| 1621 | for (ndx2 = 0; ndx2 < 8; ndx2++) |
| 1622 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) |
| 1623 | /* it's used -- record it */ |
| 1624 | add_register (collect, ndx1 * 8 + ndx2); |
| 1625 | } |
| 1626 | } |
| 1627 | } |
| 1628 | break; |
| 1629 | } /* switch */ |
| 1630 | do_cleanups (old_chain); |
| 1631 | } /* do */ |
| 1632 | } |
| 1633 | while (action_exp && *action_exp++ == ','); |
| 1634 | } /* if */ |
| 1635 | else if (cmd->function.cfunc == while_stepping_pseudocommand) |
| 1636 | { |
| 1637 | collect = &stepping_list; |
| 1638 | } |
| 1639 | else if (cmd->function.cfunc == end_actions_pseudocommand) |
| 1640 | { |
| 1641 | if (collect == &stepping_list) /* end stepping actions */ |
| 1642 | collect = &tracepoint_list; |
| 1643 | else |
| 1644 | break; /* end tracepoint actions */ |
| 1645 | } |
| 1646 | } /* for */ |
| 1647 | memrange_sortmerge (&tracepoint_list); |
| 1648 | memrange_sortmerge (&stepping_list); |
| 1649 | |
| 1650 | *tdp_actions = stringify_collection_list (&tracepoint_list, &tdp_buff); |
| 1651 | *stepping_actions = stringify_collection_list (&stepping_list, &step_buff); |
| 1652 | } |
| 1653 | |
| 1654 | static void |
| 1655 | add_aexpr (collect, aexpr) |
| 1656 | struct collection_list *collect; |
| 1657 | struct agent_expr *aexpr; |
| 1658 | { |
| 1659 | if (collect->next_aexpr_elt >= collect->aexpr_listsize) |
| 1660 | { |
| 1661 | collect->aexpr_list = |
| 1662 | xrealloc (collect->aexpr_list, |
| 1663 | 2 * collect->aexpr_listsize * sizeof (struct agent_expr *)); |
| 1664 | collect->aexpr_listsize *= 2; |
| 1665 | } |
| 1666 | collect->aexpr_list[collect->next_aexpr_elt] = aexpr; |
| 1667 | collect->next_aexpr_elt++; |
| 1668 | } |
| 1669 | |
| 1670 | static char target_buf[2048]; |
| 1671 | |
| 1672 | /* Set "transparent" memory ranges |
| 1673 | |
| 1674 | Allow trace mechanism to treat text-like sections |
| 1675 | (and perhaps all read-only sections) transparently, |
| 1676 | i.e. don't reject memory requests from these address ranges |
| 1677 | just because they haven't been collected. */ |
| 1678 | |
| 1679 | static void |
| 1680 | remote_set_transparent_ranges (void) |
| 1681 | { |
| 1682 | extern bfd *exec_bfd; |
| 1683 | asection *s; |
| 1684 | bfd_size_type size; |
| 1685 | bfd_vma lma; |
| 1686 | int anysecs = 0; |
| 1687 | |
| 1688 | if (!exec_bfd) |
| 1689 | return; /* no information to give. */ |
| 1690 | |
| 1691 | strcpy (target_buf, "QTro"); |
| 1692 | for (s = exec_bfd->sections; s; s = s->next) |
| 1693 | { |
| 1694 | char tmp[40]; |
| 1695 | |
| 1696 | if ((s->flags & SEC_LOAD) == 0 || |
| 1697 | /* (s->flags & SEC_CODE) == 0 || */ |
| 1698 | (s->flags & SEC_READONLY) == 0) |
| 1699 | continue; |
| 1700 | |
| 1701 | anysecs = 1; |
| 1702 | lma = s->lma; |
| 1703 | size = bfd_get_section_size_before_reloc (s); |
| 1704 | sprintf (tmp, ":%x,%x", lma, lma + size); |
| 1705 | strcat (target_buf, tmp); |
| 1706 | } |
| 1707 | if (anysecs) |
| 1708 | { |
| 1709 | putpkt (target_buf); |
| 1710 | getpkt (target_buf, 0); |
| 1711 | } |
| 1712 | } |
| 1713 | |
| 1714 | /* tstart command: |
| 1715 | |
| 1716 | Tell target to clear any previous trace experiment. |
| 1717 | Walk the list of tracepoints, and send them (and their actions) |
| 1718 | to the target. If no errors, |
| 1719 | Tell target to start a new trace experiment. */ |
| 1720 | |
| 1721 | static void |
| 1722 | trace_start_command (args, from_tty) |
| 1723 | char *args; |
| 1724 | int from_tty; |
| 1725 | { /* STUB_COMM MOSTLY_IMPLEMENTED */ |
| 1726 | struct tracepoint *t; |
| 1727 | char buf[2048]; |
| 1728 | char **tdp_actions; |
| 1729 | char **stepping_actions; |
| 1730 | int ndx; |
| 1731 | struct cleanup *old_chain = NULL; |
| 1732 | |
| 1733 | dont_repeat (); /* like "run", dangerous to repeat accidentally */ |
| 1734 | |
| 1735 | if (target_is_remote ()) |
| 1736 | { |
| 1737 | putpkt ("QTinit"); |
| 1738 | remote_get_noisy_reply (target_buf); |
| 1739 | if (strcmp (target_buf, "OK")) |
| 1740 | error ("Target does not support this command."); |
| 1741 | |
| 1742 | ALL_TRACEPOINTS (t) |
| 1743 | { |
| 1744 | int ss_count; /* if actions include singlestepping */ |
| 1745 | int disable_mask; /* ??? */ |
| 1746 | int enable_mask; /* ??? */ |
| 1747 | |
| 1748 | sprintf (buf, "QTDP:%x:%x:%c:%x:%x", t->number, t->address, |
| 1749 | t->enabled == enabled ? 'E' : 'D', |
| 1750 | t->step_count, t->pass_count); |
| 1751 | |
| 1752 | if (t->actions) |
| 1753 | strcat (buf, "-"); |
| 1754 | putpkt (buf); |
| 1755 | remote_get_noisy_reply (target_buf); |
| 1756 | if (strcmp (target_buf, "OK")) |
| 1757 | error ("Target does not support tracepoints."); |
| 1758 | |
| 1759 | if (t->actions) |
| 1760 | { |
| 1761 | encode_actions (t, &tdp_actions, &stepping_actions); |
| 1762 | old_chain = make_cleanup (free_actions_list_cleanup_wrapper, |
| 1763 | tdp_actions); |
| 1764 | (void) make_cleanup (free_actions_list_cleanup_wrapper, |
| 1765 | stepping_actions); |
| 1766 | |
| 1767 | /* do_single_steps (t); */ |
| 1768 | if (tdp_actions) |
| 1769 | { |
| 1770 | for (ndx = 0; tdp_actions[ndx]; ndx++) |
| 1771 | { |
| 1772 | QUIT; /* allow user to bail out with ^C */ |
| 1773 | sprintf (buf, "QTDP:-%x:%x:%s%c", |
| 1774 | t->number, t->address, |
| 1775 | tdp_actions[ndx], |
| 1776 | ((tdp_actions[ndx + 1] || stepping_actions) |
| 1777 | ? '-' : 0)); |
| 1778 | putpkt (buf); |
| 1779 | remote_get_noisy_reply (target_buf); |
| 1780 | if (strcmp (target_buf, "OK")) |
| 1781 | error ("Error on target while setting tracepoints."); |
| 1782 | } |
| 1783 | } |
| 1784 | if (stepping_actions) |
| 1785 | { |
| 1786 | for (ndx = 0; stepping_actions[ndx]; ndx++) |
| 1787 | { |
| 1788 | QUIT; /* allow user to bail out with ^C */ |
| 1789 | sprintf (buf, "QTDP:-%x:%x:%s%s%s", |
| 1790 | t->number, t->address, |
| 1791 | ((ndx == 0) ? "S" : ""), |
| 1792 | stepping_actions[ndx], |
| 1793 | (stepping_actions[ndx + 1] ? "-" : "")); |
| 1794 | putpkt (buf); |
| 1795 | remote_get_noisy_reply (target_buf); |
| 1796 | if (strcmp (target_buf, "OK")) |
| 1797 | error ("Error on target while setting tracepoints."); |
| 1798 | } |
| 1799 | } |
| 1800 | |
| 1801 | do_cleanups (old_chain); |
| 1802 | } |
| 1803 | } |
| 1804 | /* Tell target to treat text-like sections as transparent */ |
| 1805 | remote_set_transparent_ranges (); |
| 1806 | /* Now insert traps and begin collecting data */ |
| 1807 | putpkt ("QTStart"); |
| 1808 | remote_get_noisy_reply (target_buf); |
| 1809 | if (strcmp (target_buf, "OK")) |
| 1810 | error ("Bogus reply from target: %s", target_buf); |
| 1811 | set_traceframe_num (-1); /* all old traceframes invalidated */ |
| 1812 | set_tracepoint_num (-1); |
| 1813 | set_traceframe_context (-1); |
| 1814 | trace_running_p = 1; |
| 1815 | if (trace_start_stop_hook) |
| 1816 | trace_start_stop_hook (1, from_tty); |
| 1817 | |
| 1818 | } |
| 1819 | else |
| 1820 | error ("Trace can only be run on remote targets."); |
| 1821 | } |
| 1822 | |
| 1823 | /* tstop command */ |
| 1824 | static void |
| 1825 | trace_stop_command (args, from_tty) |
| 1826 | char *args; |
| 1827 | int from_tty; |
| 1828 | { /* STUB_COMM IS_IMPLEMENTED */ |
| 1829 | if (target_is_remote ()) |
| 1830 | { |
| 1831 | putpkt ("QTStop"); |
| 1832 | remote_get_noisy_reply (target_buf); |
| 1833 | if (strcmp (target_buf, "OK")) |
| 1834 | error ("Bogus reply from target: %s", target_buf); |
| 1835 | trace_running_p = 0; |
| 1836 | if (trace_start_stop_hook) |
| 1837 | trace_start_stop_hook (0, from_tty); |
| 1838 | } |
| 1839 | else |
| 1840 | error ("Trace can only be run on remote targets."); |
| 1841 | } |
| 1842 | |
| 1843 | unsigned long trace_running_p; |
| 1844 | |
| 1845 | /* tstatus command */ |
| 1846 | static void |
| 1847 | trace_status_command (args, from_tty) |
| 1848 | char *args; |
| 1849 | int from_tty; |
| 1850 | { /* STUB_COMM IS_IMPLEMENTED */ |
| 1851 | if (target_is_remote ()) |
| 1852 | { |
| 1853 | putpkt ("qTStatus"); |
| 1854 | remote_get_noisy_reply (target_buf); |
| 1855 | |
| 1856 | if (target_buf[0] != 'T' || |
| 1857 | (target_buf[1] != '0' && target_buf[1] != '1')) |
| 1858 | error ("Bogus reply from target: %s", target_buf); |
| 1859 | |
| 1860 | /* exported for use by the GUI */ |
| 1861 | trace_running_p = (target_buf[1] == '1'); |
| 1862 | } |
| 1863 | else |
| 1864 | error ("Trace can only be run on remote targets."); |
| 1865 | } |
| 1866 | |
| 1867 | /* Worker function for the various flavors of the tfind command */ |
| 1868 | static void |
| 1869 | finish_tfind_command (msg, from_tty) |
| 1870 | char *msg; |
| 1871 | int from_tty; |
| 1872 | { |
| 1873 | int target_frameno = -1, target_tracept = -1; |
| 1874 | CORE_ADDR old_frame_addr; |
| 1875 | struct symbol *old_func; |
| 1876 | char *reply; |
| 1877 | |
| 1878 | old_frame_addr = FRAME_FP (get_current_frame ()); |
| 1879 | old_func = find_pc_function (read_pc ()); |
| 1880 | |
| 1881 | putpkt (msg); |
| 1882 | reply = remote_get_noisy_reply (msg); |
| 1883 | |
| 1884 | while (reply && *reply) |
| 1885 | switch (*reply) |
| 1886 | { |
| 1887 | case 'F': |
| 1888 | if ((target_frameno = (int) strtol (++reply, &reply, 16)) == -1) |
| 1889 | { |
| 1890 | /* A request for a non-existant trace frame has failed. |
| 1891 | Our response will be different, depending on FROM_TTY: |
| 1892 | |
| 1893 | If FROM_TTY is true, meaning that this command was |
| 1894 | typed interactively by the user, then give an error |
| 1895 | and DO NOT change the state of traceframe_number etc. |
| 1896 | |
| 1897 | However if FROM_TTY is false, meaning that we're either |
| 1898 | in a script, a loop, or a user-defined command, then |
| 1899 | DON'T give an error, but DO change the state of |
| 1900 | traceframe_number etc. to invalid. |
| 1901 | |
| 1902 | The rationalle is that if you typed the command, you |
| 1903 | might just have committed a typo or something, and you'd |
| 1904 | like to NOT lose your current debugging state. However |
| 1905 | if you're in a user-defined command or especially in a |
| 1906 | loop, then you need a way to detect that the command |
| 1907 | failed WITHOUT aborting. This allows you to write |
| 1908 | scripts that search thru the trace buffer until the end, |
| 1909 | and then continue on to do something else. */ |
| 1910 | |
| 1911 | if (from_tty) |
| 1912 | error ("Target failed to find requested trace frame."); |
| 1913 | else |
| 1914 | { |
| 1915 | if (info_verbose) |
| 1916 | printf_filtered ("End of trace buffer.\n"); |
| 1917 | /* The following will not recurse, since it's special-cased */ |
| 1918 | trace_find_command ("-1", from_tty); |
| 1919 | reply = NULL; /* break out of loop, |
| 1920 | (avoid recursive nonsense) */ |
| 1921 | } |
| 1922 | } |
| 1923 | break; |
| 1924 | case 'T': |
| 1925 | if ((target_tracept = (int) strtol (++reply, &reply, 16)) == -1) |
| 1926 | error ("Target failed to find requested trace frame."); |
| 1927 | break; |
| 1928 | case 'O': /* "OK"? */ |
| 1929 | if (reply[1] == 'K' && reply[2] == '\0') |
| 1930 | reply += 2; |
| 1931 | else |
| 1932 | error ("Bogus reply from target: %s", reply); |
| 1933 | break; |
| 1934 | default: |
| 1935 | error ("Bogus reply from target: %s", reply); |
| 1936 | } |
| 1937 | |
| 1938 | flush_cached_frames (); |
| 1939 | registers_changed (); |
| 1940 | select_frame (get_current_frame (), 0); |
| 1941 | set_traceframe_num (target_frameno); |
| 1942 | set_tracepoint_num (target_tracept); |
| 1943 | if (target_frameno == -1) |
| 1944 | set_traceframe_context (-1); |
| 1945 | else |
| 1946 | set_traceframe_context (read_pc ()); |
| 1947 | |
| 1948 | if (from_tty) |
| 1949 | { |
| 1950 | int source_only; |
| 1951 | |
| 1952 | /* NOTE: in immitation of the step command, try to determine |
| 1953 | whether we have made a transition from one function to another. |
| 1954 | If so, we'll print the "stack frame" (ie. the new function and |
| 1955 | it's arguments) -- otherwise we'll just show the new source line. |
| 1956 | |
| 1957 | This determination is made by checking (1) whether the current |
| 1958 | function has changed, and (2) whether the current FP has changed. |
| 1959 | Hack: if the FP wasn't collected, either at the current or the |
| 1960 | previous frame, assume that the FP has NOT changed. */ |
| 1961 | |
| 1962 | if (old_func == find_pc_function (read_pc ()) && |
| 1963 | (old_frame_addr == 0 || |
| 1964 | FRAME_FP (get_current_frame ()) == 0 || |
| 1965 | old_frame_addr == FRAME_FP (get_current_frame ()))) |
| 1966 | source_only = -1; |
| 1967 | else |
| 1968 | source_only = 1; |
| 1969 | |
| 1970 | print_stack_frame (selected_frame, selected_frame_level, source_only); |
| 1971 | do_displays (); |
| 1972 | } |
| 1973 | } |
| 1974 | |
| 1975 | /* trace_find_command takes a trace frame number n, |
| 1976 | sends "QTFrame:<n>" to the target, |
| 1977 | and accepts a reply that may contain several optional pieces |
| 1978 | of information: a frame number, a tracepoint number, and an |
| 1979 | indication of whether this is a trap frame or a stepping frame. |
| 1980 | |
| 1981 | The minimal response is just "OK" (which indicates that the |
| 1982 | target does not give us a frame number or a tracepoint number). |
| 1983 | Instead of that, the target may send us a string containing |
| 1984 | any combination of: |
| 1985 | F<hexnum> (gives the selected frame number) |
| 1986 | T<hexnum> (gives the selected tracepoint number) |
| 1987 | */ |
| 1988 | |
| 1989 | /* tfind command */ |
| 1990 | static void |
| 1991 | trace_find_command (args, from_tty) |
| 1992 | char *args; |
| 1993 | int from_tty; |
| 1994 | { /* STUB_COMM PART_IMPLEMENTED */ |
| 1995 | /* this should only be called with a numeric argument */ |
| 1996 | int frameno = -1; |
| 1997 | char *tmp; |
| 1998 | |
| 1999 | if (target_is_remote ()) |
| 2000 | { |
| 2001 | if (trace_find_hook) |
| 2002 | trace_find_hook (args, from_tty); |
| 2003 | |
| 2004 | if (args == 0 || *args == 0) |
| 2005 | { /* TFIND with no args means find NEXT trace frame. */ |
| 2006 | if (traceframe_number == -1) |
| 2007 | frameno = 0; /* "next" is first one */ |
| 2008 | else |
| 2009 | frameno = traceframe_number + 1; |
| 2010 | } |
| 2011 | else if (0 == strcmp (args, "-")) |
| 2012 | { |
| 2013 | if (traceframe_number == -1) |
| 2014 | error ("not debugging trace buffer"); |
| 2015 | else if (from_tty && traceframe_number == 0) |
| 2016 | error ("already at start of trace buffer"); |
| 2017 | |
| 2018 | frameno = traceframe_number - 1; |
| 2019 | } |
| 2020 | else |
| 2021 | frameno = parse_and_eval_address (args); |
| 2022 | |
| 2023 | if (frameno < -1) |
| 2024 | error ("invalid input (%d is less than zero)", frameno); |
| 2025 | |
| 2026 | sprintf (target_buf, "QTFrame:%x", frameno); |
| 2027 | finish_tfind_command (target_buf, from_tty); |
| 2028 | } |
| 2029 | else |
| 2030 | error ("Trace can only be run on remote targets."); |
| 2031 | } |
| 2032 | |
| 2033 | /* tfind end */ |
| 2034 | static void |
| 2035 | trace_find_end_command (args, from_tty) |
| 2036 | char *args; |
| 2037 | int from_tty; |
| 2038 | { |
| 2039 | trace_find_command ("-1", from_tty); |
| 2040 | } |
| 2041 | |
| 2042 | /* tfind none */ |
| 2043 | static void |
| 2044 | trace_find_none_command (args, from_tty) |
| 2045 | char *args; |
| 2046 | int from_tty; |
| 2047 | { |
| 2048 | trace_find_command ("-1", from_tty); |
| 2049 | } |
| 2050 | |
| 2051 | /* tfind start */ |
| 2052 | static void |
| 2053 | trace_find_start_command (args, from_tty) |
| 2054 | char *args; |
| 2055 | int from_tty; |
| 2056 | { |
| 2057 | trace_find_command ("0", from_tty); |
| 2058 | } |
| 2059 | |
| 2060 | /* tfind pc command */ |
| 2061 | static void |
| 2062 | trace_find_pc_command (args, from_tty) |
| 2063 | char *args; |
| 2064 | int from_tty; |
| 2065 | { /* STUB_COMM PART_IMPLEMENTED */ |
| 2066 | CORE_ADDR pc; |
| 2067 | char *tmp; |
| 2068 | |
| 2069 | if (target_is_remote ()) |
| 2070 | { |
| 2071 | if (args == 0 || *args == 0) |
| 2072 | pc = read_pc (); /* default is current pc */ |
| 2073 | else |
| 2074 | pc = parse_and_eval_address (args); |
| 2075 | |
| 2076 | sprintf (target_buf, "QTFrame:pc:%x", pc); |
| 2077 | finish_tfind_command (target_buf, from_tty); |
| 2078 | } |
| 2079 | else |
| 2080 | error ("Trace can only be run on remote targets."); |
| 2081 | } |
| 2082 | |
| 2083 | /* tfind tracepoint command */ |
| 2084 | static void |
| 2085 | trace_find_tracepoint_command (args, from_tty) |
| 2086 | char *args; |
| 2087 | int from_tty; |
| 2088 | { /* STUB_COMM PART_IMPLEMENTED */ |
| 2089 | int tdp; |
| 2090 | char buf[40], *tmp; |
| 2091 | |
| 2092 | if (target_is_remote ()) |
| 2093 | { |
| 2094 | if (args == 0 || *args == 0) |
| 2095 | if (tracepoint_number == -1) |
| 2096 | error ("No current tracepoint -- please supply an argument."); |
| 2097 | else |
| 2098 | tdp = tracepoint_number; /* default is current TDP */ |
| 2099 | else |
| 2100 | tdp = parse_and_eval_address (args); |
| 2101 | |
| 2102 | sprintf (target_buf, "QTFrame:tdp:%x", tdp); |
| 2103 | finish_tfind_command (target_buf, from_tty); |
| 2104 | } |
| 2105 | else |
| 2106 | error ("Trace can only be run on remote targets."); |
| 2107 | } |
| 2108 | |
| 2109 | /* TFIND LINE command: |
| 2110 | |
| 2111 | This command will take a sourceline for argument, just like BREAK |
| 2112 | or TRACE (ie. anything that "decode_line_1" can handle). |
| 2113 | |
| 2114 | With no argument, this command will find the next trace frame |
| 2115 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ |
| 2116 | |
| 2117 | static void |
| 2118 | trace_find_line_command (args, from_tty) |
| 2119 | char *args; |
| 2120 | int from_tty; |
| 2121 | { /* STUB_COMM PART_IMPLEMENTED */ |
| 2122 | static CORE_ADDR start_pc, end_pc; |
| 2123 | struct symtabs_and_lines sals; |
| 2124 | struct symtab_and_line sal; |
| 2125 | char *tmp; |
| 2126 | struct cleanup *old_chain; |
| 2127 | |
| 2128 | if (target_is_remote ()) |
| 2129 | { |
| 2130 | if (args == 0 || *args == 0) |
| 2131 | { |
| 2132 | sal = find_pc_line ((get_current_frame ())->pc, 0); |
| 2133 | sals.nelts = 1; |
| 2134 | sals.sals = (struct symtab_and_line *) |
| 2135 | xmalloc (sizeof (struct symtab_and_line)); |
| 2136 | sals.sals[0] = sal; |
| 2137 | } |
| 2138 | else |
| 2139 | { |
| 2140 | sals = decode_line_spec (args, 1); |
| 2141 | sal = sals.sals[0]; |
| 2142 | } |
| 2143 | |
| 2144 | old_chain = make_cleanup (free, sals.sals); |
| 2145 | if (sal.symtab == 0) |
| 2146 | { |
| 2147 | printf_filtered ("TFIND: No line number information available"); |
| 2148 | if (sal.pc != 0) |
| 2149 | { |
| 2150 | /* This is useful for "info line *0x7f34". If we can't tell the |
| 2151 | user about a source line, at least let them have the symbolic |
| 2152 | address. */ |
| 2153 | printf_filtered (" for address "); |
| 2154 | wrap_here (" "); |
| 2155 | print_address (sal.pc, gdb_stdout); |
| 2156 | printf_filtered (";\n -- will attempt to find by PC. \n"); |
| 2157 | } |
| 2158 | else |
| 2159 | { |
| 2160 | printf_filtered (".\n"); |
| 2161 | return; /* no line, no PC; what can we do? */ |
| 2162 | } |
| 2163 | } |
| 2164 | else if (sal.line > 0 |
| 2165 | && find_line_pc_range (sal, &start_pc, &end_pc)) |
| 2166 | { |
| 2167 | if (start_pc == end_pc) |
| 2168 | { |
| 2169 | printf_filtered ("Line %d of \"%s\"", |
| 2170 | sal.line, sal.symtab->filename); |
| 2171 | wrap_here (" "); |
| 2172 | printf_filtered (" is at address "); |
| 2173 | print_address (start_pc, gdb_stdout); |
| 2174 | wrap_here (" "); |
| 2175 | printf_filtered (" but contains no code.\n"); |
| 2176 | sal = find_pc_line (start_pc, 0); |
| 2177 | if (sal.line > 0 && |
| 2178 | find_line_pc_range (sal, &start_pc, &end_pc) && |
| 2179 | start_pc != end_pc) |
| 2180 | printf_filtered ("Attempting to find line %d instead.\n", |
| 2181 | sal.line); |
| 2182 | else |
| 2183 | error ("Cannot find a good line."); |
| 2184 | } |
| 2185 | } |
| 2186 | else |
| 2187 | /* Is there any case in which we get here, and have an address |
| 2188 | which the user would want to see? If we have debugging symbols |
| 2189 | and no line numbers? */ |
| 2190 | error ("Line number %d is out of range for \"%s\".\n", |
| 2191 | sal.line, sal.symtab->filename); |
| 2192 | |
| 2193 | if (args && *args) /* find within range of stated line */ |
| 2194 | sprintf (target_buf, "QTFrame:range:%x:%x", start_pc, end_pc - 1); |
| 2195 | else /* find OUTSIDE OF range of CURRENT line */ |
| 2196 | sprintf (target_buf, "QTFrame:outside:%x:%x", start_pc, end_pc - 1); |
| 2197 | finish_tfind_command (target_buf, from_tty); |
| 2198 | do_cleanups (old_chain); |
| 2199 | } |
| 2200 | else |
| 2201 | error ("Trace can only be run on remote targets."); |
| 2202 | } |
| 2203 | |
| 2204 | /* tfind range command */ |
| 2205 | static void |
| 2206 | trace_find_range_command (args, from_tty) |
| 2207 | char *args; |
| 2208 | int from_tty; |
| 2209 | { /* STUB_COMM PART_IMPLEMENTED */ |
| 2210 | static CORE_ADDR start, stop; |
| 2211 | char *tmp; |
| 2212 | |
| 2213 | if (target_is_remote ()) |
| 2214 | { |
| 2215 | if (args == 0 || *args == 0) |
| 2216 | { /* XXX FIXME: what should default behavior be? */ |
| 2217 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); |
| 2218 | return; |
| 2219 | } |
| 2220 | |
| 2221 | if (0 != (tmp = strchr (args, ','))) |
| 2222 | { |
| 2223 | *tmp++ = '\0'; /* terminate start address */ |
| 2224 | while (isspace (*tmp)) |
| 2225 | tmp++; |
| 2226 | start = parse_and_eval_address (args); |
| 2227 | stop = parse_and_eval_address (tmp); |
| 2228 | } |
| 2229 | else |
| 2230 | { /* no explicit end address? */ |
| 2231 | start = parse_and_eval_address (args); |
| 2232 | stop = start + 1; /* ??? */ |
| 2233 | } |
| 2234 | |
| 2235 | sprintf (target_buf, "QTFrame:range:%x:%x", start, stop); |
| 2236 | finish_tfind_command (target_buf, from_tty); |
| 2237 | } |
| 2238 | else |
| 2239 | error ("Trace can only be run on remote targets."); |
| 2240 | } |
| 2241 | |
| 2242 | /* tfind outside command */ |
| 2243 | static void |
| 2244 | trace_find_outside_command (args, from_tty) |
| 2245 | char *args; |
| 2246 | int from_tty; |
| 2247 | { /* STUB_COMM PART_IMPLEMENTED */ |
| 2248 | CORE_ADDR start, stop; |
| 2249 | char *tmp; |
| 2250 | |
| 2251 | if (target_is_remote ()) |
| 2252 | { |
| 2253 | if (args == 0 || *args == 0) |
| 2254 | { /* XXX FIXME: what should default behavior be? */ |
| 2255 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); |
| 2256 | return; |
| 2257 | } |
| 2258 | |
| 2259 | if (0 != (tmp = strchr (args, ','))) |
| 2260 | { |
| 2261 | *tmp++ = '\0'; /* terminate start address */ |
| 2262 | while (isspace (*tmp)) |
| 2263 | tmp++; |
| 2264 | start = parse_and_eval_address (args); |
| 2265 | stop = parse_and_eval_address (tmp); |
| 2266 | } |
| 2267 | else |
| 2268 | { /* no explicit end address? */ |
| 2269 | start = parse_and_eval_address (args); |
| 2270 | stop = start + 1; /* ??? */ |
| 2271 | } |
| 2272 | |
| 2273 | sprintf (target_buf, "QTFrame:outside:%x:%x", start, stop); |
| 2274 | finish_tfind_command (target_buf, from_tty); |
| 2275 | } |
| 2276 | else |
| 2277 | error ("Trace can only be run on remote targets."); |
| 2278 | } |
| 2279 | |
| 2280 | /* save-tracepoints command */ |
| 2281 | static void |
| 2282 | tracepoint_save_command (args, from_tty) |
| 2283 | char *args; |
| 2284 | int from_tty; |
| 2285 | { |
| 2286 | struct tracepoint *tp; |
| 2287 | struct action_line *line; |
| 2288 | FILE *fp; |
| 2289 | char *i1 = " ", *i2 = " "; |
| 2290 | char *indent, *actionline; |
| 2291 | |
| 2292 | if (args == 0 || *args == 0) |
| 2293 | error ("Argument required (file name in which to save tracepoints"); |
| 2294 | |
| 2295 | if (tracepoint_chain == 0) |
| 2296 | { |
| 2297 | warning ("save-tracepoints: no tracepoints to save.\n"); |
| 2298 | return; |
| 2299 | } |
| 2300 | |
| 2301 | if (!(fp = fopen (args, "w"))) |
| 2302 | error ("Unable to open file '%s' for saving tracepoints"); |
| 2303 | |
| 2304 | ALL_TRACEPOINTS (tp) |
| 2305 | { |
| 2306 | if (tp->addr_string) |
| 2307 | fprintf (fp, "trace %s\n", tp->addr_string); |
| 2308 | else |
| 2309 | fprintf (fp, "trace *0x%x\n", tp->address); |
| 2310 | |
| 2311 | if (tp->pass_count) |
| 2312 | fprintf (fp, " passcount %d\n", tp->pass_count); |
| 2313 | |
| 2314 | if (tp->actions) |
| 2315 | { |
| 2316 | fprintf (fp, " actions\n"); |
| 2317 | indent = i1; |
| 2318 | for (line = tp->actions; line; line = line->next) |
| 2319 | { |
| 2320 | struct cmd_list_element *cmd; |
| 2321 | |
| 2322 | QUIT; /* allow user to bail out with ^C */ |
| 2323 | actionline = line->action; |
| 2324 | while (isspace (*actionline)) |
| 2325 | actionline++; |
| 2326 | |
| 2327 | fprintf (fp, "%s%s\n", indent, actionline); |
| 2328 | if (*actionline != '#') /* skip for comment lines */ |
| 2329 | { |
| 2330 | cmd = lookup_cmd (&actionline, cmdlist, "", -1, 1); |
| 2331 | if (cmd == 0) |
| 2332 | error ("Bad action list item: %s", actionline); |
| 2333 | if (cmd->function.cfunc == while_stepping_pseudocommand) |
| 2334 | indent = i2; |
| 2335 | else if (cmd->function.cfunc == end_actions_pseudocommand) |
| 2336 | indent = i1; |
| 2337 | } |
| 2338 | } |
| 2339 | } |
| 2340 | } |
| 2341 | fclose (fp); |
| 2342 | if (from_tty) |
| 2343 | printf_filtered ("Tracepoints saved to file '%s'.\n", args); |
| 2344 | return; |
| 2345 | } |
| 2346 | |
| 2347 | /* info scope command: list the locals for a scope. */ |
| 2348 | static void |
| 2349 | scope_info (args, from_tty) |
| 2350 | char *args; |
| 2351 | int from_tty; |
| 2352 | { |
| 2353 | struct symtab_and_line sal; |
| 2354 | struct symtabs_and_lines sals; |
| 2355 | struct symbol *sym; |
| 2356 | struct minimal_symbol *msym; |
| 2357 | struct block *block; |
| 2358 | char **canonical, *symname, *save_args = args; |
| 2359 | int i, j, nsyms, count = 0; |
| 2360 | |
| 2361 | if (args == 0 || *args == 0) |
| 2362 | error ("requires an argument (function, line or *addr) to define a scope"); |
| 2363 | |
| 2364 | sals = decode_line_1 (&args, 1, NULL, 0, &canonical); |
| 2365 | if (sals.nelts == 0) |
| 2366 | return; /* presumably decode_line_1 has already warned */ |
| 2367 | |
| 2368 | /* Resolve line numbers to PC */ |
| 2369 | resolve_sal_pc (&sals.sals[0]); |
| 2370 | block = block_for_pc (sals.sals[0].pc); |
| 2371 | |
| 2372 | while (block != 0) |
| 2373 | { |
| 2374 | QUIT; /* allow user to bail out with ^C */ |
| 2375 | nsyms = BLOCK_NSYMS (block); |
| 2376 | for (i = 0; i < nsyms; i++) |
| 2377 | { |
| 2378 | QUIT; /* allow user to bail out with ^C */ |
| 2379 | if (count == 0) |
| 2380 | printf_filtered ("Scope for %s:\n", save_args); |
| 2381 | count++; |
| 2382 | sym = BLOCK_SYM (block, i); |
| 2383 | symname = SYMBOL_NAME (sym); |
| 2384 | if (symname == NULL || *symname == '\0') |
| 2385 | continue; /* probably botched, certainly useless */ |
| 2386 | |
| 2387 | printf_filtered ("Symbol %s is ", symname); |
| 2388 | switch (SYMBOL_CLASS (sym)) |
| 2389 | { |
| 2390 | default: |
| 2391 | case LOC_UNDEF: /* messed up symbol? */ |
| 2392 | printf_filtered ("a bogus symbol, class %d.\n", |
| 2393 | SYMBOL_CLASS (sym)); |
| 2394 | count--; /* don't count this one */ |
| 2395 | continue; |
| 2396 | case LOC_CONST: |
| 2397 | printf_filtered ("a constant with value %d (0x%x)", |
| 2398 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); |
| 2399 | break; |
| 2400 | case LOC_CONST_BYTES: |
| 2401 | printf_filtered ("constant bytes: "); |
| 2402 | if (SYMBOL_TYPE (sym)) |
| 2403 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) |
| 2404 | fprintf_filtered (gdb_stdout, " %02x", |
| 2405 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); |
| 2406 | break; |
| 2407 | case LOC_STATIC: |
| 2408 | printf_filtered ("in static storage at address "); |
| 2409 | print_address_numeric (SYMBOL_VALUE_ADDRESS (sym), 1, gdb_stdout); |
| 2410 | break; |
| 2411 | case LOC_REGISTER: |
| 2412 | printf_filtered ("a local variable in register $%s", |
| 2413 | REGISTER_NAME (SYMBOL_VALUE (sym))); |
| 2414 | break; |
| 2415 | case LOC_ARG: |
| 2416 | case LOC_LOCAL_ARG: |
| 2417 | printf_filtered ("an argument at stack/frame offset %ld", |
| 2418 | SYMBOL_VALUE (sym)); |
| 2419 | break; |
| 2420 | case LOC_LOCAL: |
| 2421 | printf_filtered ("a local variable at frame offset %ld", |
| 2422 | SYMBOL_VALUE (sym)); |
| 2423 | break; |
| 2424 | case LOC_REF_ARG: |
| 2425 | printf_filtered ("a reference argument at offset %ld", |
| 2426 | SYMBOL_VALUE (sym)); |
| 2427 | break; |
| 2428 | case LOC_REGPARM: |
| 2429 | printf_filtered ("an argument in register $%s", |
| 2430 | REGISTER_NAME (SYMBOL_VALUE (sym))); |
| 2431 | break; |
| 2432 | case LOC_REGPARM_ADDR: |
| 2433 | printf_filtered ("the address of an argument, in register $%s", |
| 2434 | REGISTER_NAME (SYMBOL_VALUE (sym))); |
| 2435 | break; |
| 2436 | case LOC_TYPEDEF: |
| 2437 | printf_filtered ("a typedef.\n"); |
| 2438 | continue; |
| 2439 | case LOC_LABEL: |
| 2440 | printf_filtered ("a label at address "); |
| 2441 | print_address_numeric (SYMBOL_VALUE_ADDRESS (sym), 1, gdb_stdout); |
| 2442 | break; |
| 2443 | case LOC_BLOCK: |
| 2444 | printf_filtered ("a function at address "); |
| 2445 | print_address_numeric (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), 1, |
| 2446 | gdb_stdout); |
| 2447 | break; |
| 2448 | case LOC_BASEREG: |
| 2449 | printf_filtered ("a variable at offset %d from register $%s", |
| 2450 | SYMBOL_VALUE (sym), |
| 2451 | REGISTER_NAME (SYMBOL_BASEREG (sym))); |
| 2452 | break; |
| 2453 | case LOC_BASEREG_ARG: |
| 2454 | printf_filtered ("an argument at offset %d from register $%s", |
| 2455 | SYMBOL_VALUE (sym), |
| 2456 | REGISTER_NAME (SYMBOL_BASEREG (sym))); |
| 2457 | break; |
| 2458 | case LOC_UNRESOLVED: |
| 2459 | msym = lookup_minimal_symbol (SYMBOL_NAME (sym), NULL, NULL); |
| 2460 | if (msym == NULL) |
| 2461 | printf_filtered ("Unresolved Static"); |
| 2462 | else |
| 2463 | { |
| 2464 | printf_filtered ("static storage at address "); |
| 2465 | print_address_numeric (SYMBOL_VALUE_ADDRESS (msym), 1, |
| 2466 | gdb_stdout); |
| 2467 | } |
| 2468 | break; |
| 2469 | case LOC_OPTIMIZED_OUT: |
| 2470 | printf_filtered ("optimized out.\n"); |
| 2471 | continue; |
| 2472 | } |
| 2473 | if (SYMBOL_TYPE (sym)) |
| 2474 | printf_filtered (", length %d.\n", |
| 2475 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); |
| 2476 | } |
| 2477 | if (BLOCK_FUNCTION (block)) |
| 2478 | break; |
| 2479 | else |
| 2480 | block = BLOCK_SUPERBLOCK (block); |
| 2481 | } |
| 2482 | if (count <= 0) |
| 2483 | printf_filtered ("Scope for %s contains no locals or arguments.\n", |
| 2484 | save_args); |
| 2485 | } |
| 2486 | |
| 2487 | /* worker function (cleanup) */ |
| 2488 | static void |
| 2489 | replace_comma (comma) |
| 2490 | char *comma; |
| 2491 | { |
| 2492 | *comma = ','; |
| 2493 | } |
| 2494 | |
| 2495 | /* tdump command */ |
| 2496 | static void |
| 2497 | trace_dump_command (args, from_tty) |
| 2498 | char *args; |
| 2499 | int from_tty; |
| 2500 | { |
| 2501 | struct tracepoint *t; |
| 2502 | struct action_line *action; |
| 2503 | char *action_exp, *next_comma; |
| 2504 | struct cleanup *old_cleanups; |
| 2505 | int stepping_actions = 0; |
| 2506 | int stepping_frame = 0; |
| 2507 | |
| 2508 | if (!target_is_remote ()) |
| 2509 | { |
| 2510 | error ("Trace can only be run on remote targets."); |
| 2511 | return; |
| 2512 | } |
| 2513 | |
| 2514 | if (tracepoint_number == -1) |
| 2515 | { |
| 2516 | warning ("No current trace frame."); |
| 2517 | return; |
| 2518 | } |
| 2519 | |
| 2520 | ALL_TRACEPOINTS (t) |
| 2521 | if (t->number == tracepoint_number) |
| 2522 | break; |
| 2523 | |
| 2524 | if (t == NULL) |
| 2525 | error ("No known tracepoint matches 'current' tracepoint #%d.", |
| 2526 | tracepoint_number); |
| 2527 | |
| 2528 | old_cleanups = make_cleanup (null_cleanup, NULL); |
| 2529 | |
| 2530 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", |
| 2531 | tracepoint_number, traceframe_number); |
| 2532 | |
| 2533 | /* The current frame is a trap frame if the frame PC is equal |
| 2534 | to the tracepoint PC. If not, then the current frame was |
| 2535 | collected during single-stepping. */ |
| 2536 | |
| 2537 | stepping_frame = (t->address != read_pc ()); |
| 2538 | |
| 2539 | for (action = t->actions; action; action = action->next) |
| 2540 | { |
| 2541 | struct cmd_list_element *cmd; |
| 2542 | |
| 2543 | QUIT; /* allow user to bail out with ^C */ |
| 2544 | action_exp = action->action; |
| 2545 | while (isspace (*action_exp)) |
| 2546 | action_exp++; |
| 2547 | |
| 2548 | /* The collection actions to be done while stepping are |
| 2549 | bracketed by the commands "while-stepping" and "end". */ |
| 2550 | |
| 2551 | if (*action_exp == '#') /* comment line */ |
| 2552 | continue; |
| 2553 | |
| 2554 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
| 2555 | if (cmd == 0) |
| 2556 | error ("Bad action list item: %s", action_exp); |
| 2557 | |
| 2558 | if (cmd->function.cfunc == while_stepping_pseudocommand) |
| 2559 | stepping_actions = 1; |
| 2560 | else if (cmd->function.cfunc == end_actions_pseudocommand) |
| 2561 | stepping_actions = 0; |
| 2562 | else if (cmd->function.cfunc == collect_pseudocommand) |
| 2563 | { |
| 2564 | /* Display the collected data. |
| 2565 | For the trap frame, display only what was collected at the trap. |
| 2566 | Likewise for stepping frames, display only what was collected |
| 2567 | while stepping. This means that the two boolean variables, |
| 2568 | STEPPING_FRAME and STEPPING_ACTIONS should be equal. */ |
| 2569 | if (stepping_frame == stepping_actions) |
| 2570 | { |
| 2571 | do |
| 2572 | { /* repeat over a comma-separated list */ |
| 2573 | QUIT; /* allow user to bail out with ^C */ |
| 2574 | if (*action_exp == ',') |
| 2575 | action_exp++; |
| 2576 | while (isspace (*action_exp)) |
| 2577 | action_exp++; |
| 2578 | |
| 2579 | next_comma = strchr (action_exp, ','); |
| 2580 | |
| 2581 | if (0 == strncasecmp (action_exp, "$reg", 4)) |
| 2582 | registers_info (NULL, from_tty); |
| 2583 | else if (0 == strncasecmp (action_exp, "$loc", 4)) |
| 2584 | locals_info (NULL, from_tty); |
| 2585 | else if (0 == strncasecmp (action_exp, "$arg", 4)) |
| 2586 | args_info (NULL, from_tty); |
| 2587 | else |
| 2588 | { /* variable */ |
| 2589 | if (next_comma) |
| 2590 | { |
| 2591 | make_cleanup (replace_comma, next_comma); |
| 2592 | *next_comma = '\0'; |
| 2593 | } |
| 2594 | printf_filtered ("%s = ", action_exp); |
| 2595 | output_command (action_exp, from_tty); |
| 2596 | printf_filtered ("\n"); |
| 2597 | } |
| 2598 | if (next_comma) |
| 2599 | *next_comma = ','; |
| 2600 | action_exp = next_comma; |
| 2601 | } |
| 2602 | while (action_exp && *action_exp == ','); |
| 2603 | } |
| 2604 | } |
| 2605 | } |
| 2606 | discard_cleanups (old_cleanups); |
| 2607 | } |
| 2608 | |
| 2609 | /* Convert the memory pointed to by mem into hex, placing result in buf. |
| 2610 | * Return a pointer to the last char put in buf (null) |
| 2611 | * "stolen" from sparc-stub.c |
| 2612 | */ |
| 2613 | |
| 2614 | static const char hexchars[] = "0123456789abcdef"; |
| 2615 | |
| 2616 | static unsigned char * |
| 2617 | mem2hex (mem, buf, count) |
| 2618 | unsigned char *mem; |
| 2619 | unsigned char *buf; |
| 2620 | int count; |
| 2621 | { |
| 2622 | unsigned char ch; |
| 2623 | |
| 2624 | while (count-- > 0) |
| 2625 | { |
| 2626 | ch = *mem++; |
| 2627 | |
| 2628 | *buf++ = hexchars[ch >> 4]; |
| 2629 | *buf++ = hexchars[ch & 0xf]; |
| 2630 | } |
| 2631 | |
| 2632 | *buf = 0; |
| 2633 | |
| 2634 | return buf; |
| 2635 | } |
| 2636 | |
| 2637 | int |
| 2638 | get_traceframe_number () |
| 2639 | { |
| 2640 | return traceframe_number; |
| 2641 | } |
| 2642 | |
| 2643 | |
| 2644 | /* module initialization */ |
| 2645 | void |
| 2646 | _initialize_tracepoint () |
| 2647 | { |
| 2648 | tracepoint_chain = 0; |
| 2649 | tracepoint_count = 0; |
| 2650 | traceframe_number = -1; |
| 2651 | tracepoint_number = -1; |
| 2652 | |
| 2653 | set_internalvar (lookup_internalvar ("tpnum"), |
| 2654 | value_from_longest (builtin_type_int, (LONGEST) 0)); |
| 2655 | set_internalvar (lookup_internalvar ("trace_frame"), |
| 2656 | value_from_longest (builtin_type_int, (LONGEST) - 1)); |
| 2657 | |
| 2658 | if (tracepoint_list.list == NULL) |
| 2659 | { |
| 2660 | tracepoint_list.listsize = 128; |
| 2661 | tracepoint_list.list = xmalloc |
| 2662 | (tracepoint_list.listsize * sizeof (struct memrange)); |
| 2663 | } |
| 2664 | if (tracepoint_list.aexpr_list == NULL) |
| 2665 | { |
| 2666 | tracepoint_list.aexpr_listsize = 128; |
| 2667 | tracepoint_list.aexpr_list = xmalloc |
| 2668 | (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *)); |
| 2669 | } |
| 2670 | |
| 2671 | if (stepping_list.list == NULL) |
| 2672 | { |
| 2673 | stepping_list.listsize = 128; |
| 2674 | stepping_list.list = xmalloc |
| 2675 | (stepping_list.listsize * sizeof (struct memrange)); |
| 2676 | } |
| 2677 | |
| 2678 | if (stepping_list.aexpr_list == NULL) |
| 2679 | { |
| 2680 | stepping_list.aexpr_listsize = 128; |
| 2681 | stepping_list.aexpr_list = xmalloc |
| 2682 | (stepping_list.aexpr_listsize * sizeof (struct agent_expr *)); |
| 2683 | } |
| 2684 | |
| 2685 | add_info ("scope", scope_info, |
| 2686 | "List the variables local to a scope"); |
| 2687 | |
| 2688 | add_cmd ("tracepoints", class_trace, NO_FUNCTION, |
| 2689 | "Tracing of program execution without stopping the program.", |
| 2690 | &cmdlist); |
| 2691 | |
| 2692 | add_info ("tracepoints", tracepoints_info, |
| 2693 | "Status of tracepoints, or tracepoint number NUMBER.\n\ |
| 2694 | Convenience variable \"$tpnum\" contains the number of the\n\ |
| 2695 | last tracepoint set."); |
| 2696 | |
| 2697 | add_info_alias ("tp", "tracepoints", 1); |
| 2698 | |
| 2699 | add_com ("save-tracepoints", class_trace, tracepoint_save_command, |
| 2700 | "Save current tracepoint definitions as a script.\n\ |
| 2701 | Use the 'source' command in another debug session to restore them."); |
| 2702 | |
| 2703 | add_com ("tdump", class_trace, trace_dump_command, |
| 2704 | "Print everything collected at the current tracepoint."); |
| 2705 | |
| 2706 | add_prefix_cmd ("tfind", class_trace, trace_find_command, |
| 2707 | "Select a trace frame;\n\ |
| 2708 | No argument means forward by one frame; '-' meand backward by one frame.", |
| 2709 | &tfindlist, "tfind ", 1, &cmdlist); |
| 2710 | |
| 2711 | add_cmd ("outside", class_trace, trace_find_outside_command, |
| 2712 | "Select a trace frame whose PC is outside the given \ |
| 2713 | range.\nUsage: tfind outside addr1, addr2", |
| 2714 | &tfindlist); |
| 2715 | |
| 2716 | add_cmd ("range", class_trace, trace_find_range_command, |
| 2717 | "Select a trace frame whose PC is in the given range.\n\ |
| 2718 | Usage: tfind range addr1,addr2", |
| 2719 | &tfindlist); |
| 2720 | |
| 2721 | add_cmd ("line", class_trace, trace_find_line_command, |
| 2722 | "Select a trace frame by source line.\n\ |
| 2723 | Argument can be a line number (with optional source file), \n\ |
| 2724 | a function name, or '*' followed by an address.\n\ |
| 2725 | Default argument is 'the next source line that was traced'.", |
| 2726 | &tfindlist); |
| 2727 | |
| 2728 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, |
| 2729 | "Select a trace frame by tracepoint number.\n\ |
| 2730 | Default is the tracepoint for the current trace frame.", |
| 2731 | &tfindlist); |
| 2732 | |
| 2733 | add_cmd ("pc", class_trace, trace_find_pc_command, |
| 2734 | "Select a trace frame by PC.\n\ |
| 2735 | Default is the current PC, or the PC of the current trace frame.", |
| 2736 | &tfindlist); |
| 2737 | |
| 2738 | add_cmd ("end", class_trace, trace_find_end_command, |
| 2739 | "Synonym for 'none'.\n\ |
| 2740 | De-select any trace frame and resume 'live' debugging.", |
| 2741 | &tfindlist); |
| 2742 | |
| 2743 | add_cmd ("none", class_trace, trace_find_none_command, |
| 2744 | "De-select any trace frame and resume 'live' debugging.", |
| 2745 | &tfindlist); |
| 2746 | |
| 2747 | add_cmd ("start", class_trace, trace_find_start_command, |
| 2748 | "Select the first trace frame in the trace buffer.", |
| 2749 | &tfindlist); |
| 2750 | |
| 2751 | add_com ("tstatus", class_trace, trace_status_command, |
| 2752 | "Display the status of the current trace data collection."); |
| 2753 | |
| 2754 | add_com ("tstop", class_trace, trace_stop_command, |
| 2755 | "Stop trace data collection."); |
| 2756 | |
| 2757 | add_com ("tstart", class_trace, trace_start_command, |
| 2758 | "Start trace data collection."); |
| 2759 | |
| 2760 | add_com ("passcount", class_trace, trace_pass_command, |
| 2761 | "Set the passcount for a tracepoint.\n\ |
| 2762 | The trace will end when the tracepoint has been passed 'count' times.\n\ |
| 2763 | Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\ |
| 2764 | if TPNUM is omitted, passcount refers to the last tracepoint defined."); |
| 2765 | |
| 2766 | add_com ("end", class_trace, end_actions_pseudocommand, |
| 2767 | "Ends a list of commands or actions.\n\ |
| 2768 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
| 2769 | Entering \"end\" on a line by itself is the normal way to terminate\n\ |
| 2770 | such a list.\n\n\ |
| 2771 | Note: the \"end\" command cannot be used at the gdb prompt."); |
| 2772 | |
| 2773 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, |
| 2774 | "Specify single-stepping behavior at a tracepoint.\n\ |
| 2775 | Argument is number of instructions to trace in single-step mode\n\ |
| 2776 | following the tracepoint. This command is normally followed by\n\ |
| 2777 | one or more \"collect\" commands, to specify what to collect\n\ |
| 2778 | while single-stepping.\n\n\ |
| 2779 | Note: this command can only be used in a tracepoint \"actions\" list."); |
| 2780 | |
| 2781 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
| 2782 | add_com_alias ("stepping", "while-stepping", class_alias, 0); |
| 2783 | |
| 2784 | add_com ("collect", class_trace, collect_pseudocommand, |
| 2785 | "Specify one or more data items to be collected at a tracepoint.\n\ |
| 2786 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
| 2787 | collect all data (variables, registers) referenced by that expression.\n\ |
| 2788 | Also accepts the following special arguments:\n\ |
| 2789 | $regs -- all registers.\n\ |
| 2790 | $args -- all function arguments.\n\ |
| 2791 | $locals -- all variables local to the block/function scope.\n\ |
| 2792 | Note: this command can only be used in a tracepoint \"actions\" list."); |
| 2793 | |
| 2794 | add_com ("actions", class_trace, trace_actions_command, |
| 2795 | "Specify the actions to be taken at a tracepoint.\n\ |
| 2796 | Tracepoint actions may include collecting of specified data, \n\ |
| 2797 | single-stepping, or enabling/disabling other tracepoints, \n\ |
| 2798 | depending on target's capabilities."); |
| 2799 | |
| 2800 | add_cmd ("tracepoints", class_trace, delete_trace_command, |
| 2801 | "Delete specified tracepoints.\n\ |
| 2802 | Arguments are tracepoint numbers, separated by spaces.\n\ |
| 2803 | No argument means delete all tracepoints.", |
| 2804 | &deletelist); |
| 2805 | |
| 2806 | add_cmd ("tracepoints", class_trace, disable_trace_command, |
| 2807 | "Disable specified tracepoints.\n\ |
| 2808 | Arguments are tracepoint numbers, separated by spaces.\n\ |
| 2809 | No argument means disable all tracepoints.", |
| 2810 | &disablelist); |
| 2811 | |
| 2812 | add_cmd ("tracepoints", class_trace, enable_trace_command, |
| 2813 | "Enable specified tracepoints.\n\ |
| 2814 | Arguments are tracepoint numbers, separated by spaces.\n\ |
| 2815 | No argument means enable all tracepoints.", |
| 2816 | &enablelist); |
| 2817 | |
| 2818 | add_com ("trace", class_trace, trace_command, |
| 2819 | "Set a tracepoint at a specified line or function or address.\n\ |
| 2820 | Argument may be a line number, function name, or '*' plus an address.\n\ |
| 2821 | For a line number or function, trace at the start of its code.\n\ |
| 2822 | If an address is specified, trace at that exact address.\n\n\ |
| 2823 | Do \"help tracepoints\" for info on other tracepoint commands."); |
| 2824 | |
| 2825 | add_com_alias ("tp", "trace", class_alias, 0); |
| 2826 | add_com_alias ("tr", "trace", class_alias, 1); |
| 2827 | add_com_alias ("tra", "trace", class_alias, 1); |
| 2828 | add_com_alias ("trac", "trace", class_alias, 1); |
| 2829 | } |