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