| 1 | /* Support for GDB maintenance commands. |
| 2 | |
| 3 | Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001, |
| 4 | 2002, 2003, 2004 Free Software Foundation, Inc. |
| 5 | |
| 6 | Written by Fred Fish at Cygnus Support. |
| 7 | |
| 8 | This file is part of GDB. |
| 9 | |
| 10 | This program is free software; you can redistribute it and/or modify |
| 11 | it under the terms of the GNU General Public License as published by |
| 12 | the Free Software Foundation; either version 2 of the License, or |
| 13 | (at your option) any later version. |
| 14 | |
| 15 | This program is distributed in the hope that it will be useful, |
| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | GNU General Public License for more details. |
| 19 | |
| 20 | You should have received a copy of the GNU General Public License |
| 21 | along with this program; if not, write to the Free Software |
| 22 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 23 | Boston, MA 02110-1301, USA. */ |
| 24 | |
| 25 | |
| 26 | #include "defs.h" |
| 27 | #include <ctype.h> |
| 28 | #include <signal.h> |
| 29 | #include "command.h" |
| 30 | #include "gdbcmd.h" |
| 31 | #include "symtab.h" |
| 32 | #include "gdbtypes.h" |
| 33 | #include "demangle.h" |
| 34 | #include "gdbcore.h" |
| 35 | #include "expression.h" /* For language.h */ |
| 36 | #include "language.h" |
| 37 | #include "symfile.h" |
| 38 | #include "objfiles.h" |
| 39 | #include "value.h" |
| 40 | |
| 41 | #include "cli/cli-decode.h" |
| 42 | |
| 43 | extern void _initialize_maint_cmds (void); |
| 44 | |
| 45 | static void maintenance_command (char *, int); |
| 46 | |
| 47 | static void maintenance_dump_me (char *, int); |
| 48 | |
| 49 | static void maintenance_internal_error (char *args, int from_tty); |
| 50 | |
| 51 | static void maintenance_demangle (char *, int); |
| 52 | |
| 53 | static void maintenance_time_display (char *, int); |
| 54 | |
| 55 | static void maintenance_space_display (char *, int); |
| 56 | |
| 57 | static void maintenance_info_command (char *, int); |
| 58 | |
| 59 | static void maintenance_info_sections (char *, int); |
| 60 | |
| 61 | static void maintenance_print_command (char *, int); |
| 62 | |
| 63 | static void maintenance_do_deprecate (char *, int); |
| 64 | |
| 65 | /* Set this to the maximum number of seconds to wait instead of waiting forever |
| 66 | in target_wait(). If this timer times out, then it generates an error and |
| 67 | the command is aborted. This replaces most of the need for timeouts in the |
| 68 | GDB test suite, and makes it possible to distinguish between a hung target |
| 69 | and one with slow communications. */ |
| 70 | |
| 71 | int watchdog = 0; |
| 72 | static void |
| 73 | show_watchdog (struct ui_file *file, int from_tty, |
| 74 | struct cmd_list_element *c, const char *value) |
| 75 | { |
| 76 | fprintf_filtered (file, _("Watchdog timer is %s.\n"), value); |
| 77 | } |
| 78 | |
| 79 | /* |
| 80 | |
| 81 | LOCAL FUNCTION |
| 82 | |
| 83 | maintenance_command -- access the maintenance subcommands |
| 84 | |
| 85 | SYNOPSIS |
| 86 | |
| 87 | void maintenance_command (char *args, int from_tty) |
| 88 | |
| 89 | DESCRIPTION |
| 90 | |
| 91 | */ |
| 92 | |
| 93 | static void |
| 94 | maintenance_command (char *args, int from_tty) |
| 95 | { |
| 96 | printf_unfiltered (_("\"maintenance\" must be followed by the name of a maintenance command.\n")); |
| 97 | help_list (maintenancelist, "maintenance ", -1, gdb_stdout); |
| 98 | } |
| 99 | |
| 100 | #ifndef _WIN32 |
| 101 | static void |
| 102 | maintenance_dump_me (char *args, int from_tty) |
| 103 | { |
| 104 | if (query ("Should GDB dump core? ")) |
| 105 | { |
| 106 | #ifdef __DJGPP__ |
| 107 | /* SIGQUIT by default is ignored, so use SIGABRT instead. */ |
| 108 | signal (SIGABRT, SIG_DFL); |
| 109 | kill (getpid (), SIGABRT); |
| 110 | #else |
| 111 | signal (SIGQUIT, SIG_DFL); |
| 112 | kill (getpid (), SIGQUIT); |
| 113 | #endif |
| 114 | } |
| 115 | } |
| 116 | #endif |
| 117 | |
| 118 | /* Stimulate the internal error mechanism that GDB uses when an |
| 119 | internal problem is detected. Allows testing of the mechanism. |
| 120 | Also useful when the user wants to drop a core file but not exit |
| 121 | GDB. */ |
| 122 | |
| 123 | static void |
| 124 | maintenance_internal_error (char *args, int from_tty) |
| 125 | { |
| 126 | internal_error (__FILE__, __LINE__, "%s", (args == NULL ? "" : args)); |
| 127 | } |
| 128 | |
| 129 | /* Stimulate the internal error mechanism that GDB uses when an |
| 130 | internal problem is detected. Allows testing of the mechanism. |
| 131 | Also useful when the user wants to drop a core file but not exit |
| 132 | GDB. */ |
| 133 | |
| 134 | static void |
| 135 | maintenance_internal_warning (char *args, int from_tty) |
| 136 | { |
| 137 | internal_warning (__FILE__, __LINE__, "%s", (args == NULL ? "" : args)); |
| 138 | } |
| 139 | |
| 140 | /* Someday we should allow demangling for things other than just |
| 141 | explicit strings. For example, we might want to be able to specify |
| 142 | the address of a string in either GDB's process space or the |
| 143 | debuggee's process space, and have gdb fetch and demangle that |
| 144 | string. If we have a char* pointer "ptr" that points to a string, |
| 145 | we might want to be able to given just the name and have GDB |
| 146 | demangle and print what it points to, etc. (FIXME) */ |
| 147 | |
| 148 | static void |
| 149 | maintenance_demangle (char *args, int from_tty) |
| 150 | { |
| 151 | char *demangled; |
| 152 | |
| 153 | if (args == NULL || *args == '\0') |
| 154 | { |
| 155 | printf_unfiltered (_("\"maintenance demangle\" takes an argument to demangle.\n")); |
| 156 | } |
| 157 | else |
| 158 | { |
| 159 | demangled = language_demangle (current_language, args, |
| 160 | DMGL_ANSI | DMGL_PARAMS); |
| 161 | if (demangled != NULL) |
| 162 | { |
| 163 | printf_unfiltered ("%s\n", demangled); |
| 164 | xfree (demangled); |
| 165 | } |
| 166 | else |
| 167 | { |
| 168 | printf_unfiltered (_("Can't demangle \"%s\"\n"), args); |
| 169 | } |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | static void |
| 174 | maintenance_time_display (char *args, int from_tty) |
| 175 | { |
| 176 | extern int display_time; |
| 177 | |
| 178 | if (args == NULL || *args == '\0') |
| 179 | printf_unfiltered (_("\"maintenance time\" takes a numeric argument.\n")); |
| 180 | else |
| 181 | display_time = strtol (args, NULL, 10); |
| 182 | } |
| 183 | |
| 184 | static void |
| 185 | maintenance_space_display (char *args, int from_tty) |
| 186 | { |
| 187 | extern int display_space; |
| 188 | |
| 189 | if (args == NULL || *args == '\0') |
| 190 | printf_unfiltered ("\"maintenance space\" takes a numeric argument.\n"); |
| 191 | else |
| 192 | display_space = strtol (args, NULL, 10); |
| 193 | } |
| 194 | |
| 195 | /* The "maintenance info" command is defined as a prefix, with |
| 196 | allow_unknown 0. Therefore, its own definition is called only for |
| 197 | "maintenance info" with no args. */ |
| 198 | |
| 199 | static void |
| 200 | maintenance_info_command (char *arg, int from_tty) |
| 201 | { |
| 202 | printf_unfiltered (_("\"maintenance info\" must be followed by the name of an info command.\n")); |
| 203 | help_list (maintenanceinfolist, "maintenance info ", -1, gdb_stdout); |
| 204 | } |
| 205 | |
| 206 | /* Mini tokenizing lexer for 'maint info sections' command. */ |
| 207 | |
| 208 | static int |
| 209 | match_substring (const char *string, const char *substr) |
| 210 | { |
| 211 | int substr_len = strlen(substr); |
| 212 | const char *tok; |
| 213 | |
| 214 | while ((tok = strstr (string, substr)) != NULL) |
| 215 | { |
| 216 | /* Got a partial match. Is it a whole word? */ |
| 217 | if (tok == string |
| 218 | || tok[-1] == ' ' |
| 219 | || tok[-1] == '\t') |
| 220 | { |
| 221 | /* Token is delimited at the front... */ |
| 222 | if (tok[substr_len] == ' ' |
| 223 | || tok[substr_len] == '\t' |
| 224 | || tok[substr_len] == '\0') |
| 225 | { |
| 226 | /* Token is delimited at the rear. Got a whole-word match. */ |
| 227 | return 1; |
| 228 | } |
| 229 | } |
| 230 | /* Token didn't match as a whole word. Advance and try again. */ |
| 231 | string = tok + 1; |
| 232 | } |
| 233 | return 0; |
| 234 | } |
| 235 | |
| 236 | static int |
| 237 | match_bfd_flags (char *string, flagword flags) |
| 238 | { |
| 239 | if (flags & SEC_ALLOC) |
| 240 | if (match_substring (string, "ALLOC")) |
| 241 | return 1; |
| 242 | if (flags & SEC_LOAD) |
| 243 | if (match_substring (string, "LOAD")) |
| 244 | return 1; |
| 245 | if (flags & SEC_RELOC) |
| 246 | if (match_substring (string, "RELOC")) |
| 247 | return 1; |
| 248 | if (flags & SEC_READONLY) |
| 249 | if (match_substring (string, "READONLY")) |
| 250 | return 1; |
| 251 | if (flags & SEC_CODE) |
| 252 | if (match_substring (string, "CODE")) |
| 253 | return 1; |
| 254 | if (flags & SEC_DATA) |
| 255 | if (match_substring (string, "DATA")) |
| 256 | return 1; |
| 257 | if (flags & SEC_ROM) |
| 258 | if (match_substring (string, "ROM")) |
| 259 | return 1; |
| 260 | if (flags & SEC_CONSTRUCTOR) |
| 261 | if (match_substring (string, "CONSTRUCTOR")) |
| 262 | return 1; |
| 263 | if (flags & SEC_HAS_CONTENTS) |
| 264 | if (match_substring (string, "HAS_CONTENTS")) |
| 265 | return 1; |
| 266 | if (flags & SEC_NEVER_LOAD) |
| 267 | if (match_substring (string, "NEVER_LOAD")) |
| 268 | return 1; |
| 269 | if (flags & SEC_COFF_SHARED_LIBRARY) |
| 270 | if (match_substring (string, "COFF_SHARED_LIBRARY")) |
| 271 | return 1; |
| 272 | if (flags & SEC_IS_COMMON) |
| 273 | if (match_substring (string, "IS_COMMON")) |
| 274 | return 1; |
| 275 | |
| 276 | return 0; |
| 277 | } |
| 278 | |
| 279 | static void |
| 280 | print_bfd_flags (flagword flags) |
| 281 | { |
| 282 | if (flags & SEC_ALLOC) |
| 283 | printf_filtered (" ALLOC"); |
| 284 | if (flags & SEC_LOAD) |
| 285 | printf_filtered (" LOAD"); |
| 286 | if (flags & SEC_RELOC) |
| 287 | printf_filtered (" RELOC"); |
| 288 | if (flags & SEC_READONLY) |
| 289 | printf_filtered (" READONLY"); |
| 290 | if (flags & SEC_CODE) |
| 291 | printf_filtered (" CODE"); |
| 292 | if (flags & SEC_DATA) |
| 293 | printf_filtered (" DATA"); |
| 294 | if (flags & SEC_ROM) |
| 295 | printf_filtered (" ROM"); |
| 296 | if (flags & SEC_CONSTRUCTOR) |
| 297 | printf_filtered (" CONSTRUCTOR"); |
| 298 | if (flags & SEC_HAS_CONTENTS) |
| 299 | printf_filtered (" HAS_CONTENTS"); |
| 300 | if (flags & SEC_NEVER_LOAD) |
| 301 | printf_filtered (" NEVER_LOAD"); |
| 302 | if (flags & SEC_COFF_SHARED_LIBRARY) |
| 303 | printf_filtered (" COFF_SHARED_LIBRARY"); |
| 304 | if (flags & SEC_IS_COMMON) |
| 305 | printf_filtered (" IS_COMMON"); |
| 306 | } |
| 307 | |
| 308 | static void |
| 309 | maint_print_section_info (const char *name, flagword flags, |
| 310 | CORE_ADDR addr, CORE_ADDR endaddr, |
| 311 | unsigned long filepos) |
| 312 | { |
| 313 | /* FIXME-32x64: Need deprecated_print_address_numeric with field |
| 314 | width. */ |
| 315 | printf_filtered (" 0x%s", paddr (addr)); |
| 316 | printf_filtered ("->0x%s", paddr (endaddr)); |
| 317 | printf_filtered (" at %s", |
| 318 | hex_string_custom ((unsigned long) filepos, 8)); |
| 319 | printf_filtered (": %s", name); |
| 320 | print_bfd_flags (flags); |
| 321 | printf_filtered ("\n"); |
| 322 | } |
| 323 | |
| 324 | static void |
| 325 | print_bfd_section_info (bfd *abfd, |
| 326 | asection *asect, |
| 327 | void *arg) |
| 328 | { |
| 329 | flagword flags = bfd_get_section_flags (abfd, asect); |
| 330 | const char *name = bfd_section_name (abfd, asect); |
| 331 | |
| 332 | if (arg == NULL || *((char *) arg) == '\0' |
| 333 | || match_substring ((char *) arg, name) |
| 334 | || match_bfd_flags ((char *) arg, flags)) |
| 335 | { |
| 336 | CORE_ADDR addr, endaddr; |
| 337 | |
| 338 | addr = bfd_section_vma (abfd, asect); |
| 339 | endaddr = addr + bfd_section_size (abfd, asect); |
| 340 | maint_print_section_info (name, flags, addr, endaddr, asect->filepos); |
| 341 | } |
| 342 | } |
| 343 | |
| 344 | static void |
| 345 | print_objfile_section_info (bfd *abfd, |
| 346 | struct obj_section *asect, |
| 347 | char *string) |
| 348 | { |
| 349 | flagword flags = bfd_get_section_flags (abfd, asect->the_bfd_section); |
| 350 | const char *name = bfd_section_name (abfd, asect->the_bfd_section); |
| 351 | |
| 352 | if (string == NULL || *string == '\0' |
| 353 | || match_substring (string, name) |
| 354 | || match_bfd_flags (string, flags)) |
| 355 | { |
| 356 | maint_print_section_info (name, flags, asect->addr, asect->endaddr, |
| 357 | asect->the_bfd_section->filepos); |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | static void |
| 362 | maintenance_info_sections (char *arg, int from_tty) |
| 363 | { |
| 364 | if (exec_bfd) |
| 365 | { |
| 366 | printf_filtered (_("Exec file:\n")); |
| 367 | printf_filtered (" `%s', ", bfd_get_filename (exec_bfd)); |
| 368 | wrap_here (" "); |
| 369 | printf_filtered (_("file type %s.\n"), bfd_get_target (exec_bfd)); |
| 370 | if (arg && *arg && match_substring (arg, "ALLOBJ")) |
| 371 | { |
| 372 | struct objfile *ofile; |
| 373 | struct obj_section *osect; |
| 374 | |
| 375 | /* Only this function cares about the 'ALLOBJ' argument; |
| 376 | if 'ALLOBJ' is the only argument, discard it rather than |
| 377 | passing it down to print_objfile_section_info (which |
| 378 | wouldn't know how to handle it). */ |
| 379 | if (strcmp (arg, "ALLOBJ") == 0) |
| 380 | arg = NULL; |
| 381 | |
| 382 | ALL_OBJFILES (ofile) |
| 383 | { |
| 384 | printf_filtered (_(" Object file: %s\n"), |
| 385 | bfd_get_filename (ofile->obfd)); |
| 386 | ALL_OBJFILE_OSECTIONS (ofile, osect) |
| 387 | { |
| 388 | print_objfile_section_info (ofile->obfd, osect, arg); |
| 389 | } |
| 390 | } |
| 391 | } |
| 392 | else |
| 393 | bfd_map_over_sections (exec_bfd, print_bfd_section_info, arg); |
| 394 | } |
| 395 | |
| 396 | if (core_bfd) |
| 397 | { |
| 398 | printf_filtered (_("Core file:\n")); |
| 399 | printf_filtered (" `%s', ", bfd_get_filename (core_bfd)); |
| 400 | wrap_here (" "); |
| 401 | printf_filtered (_("file type %s.\n"), bfd_get_target (core_bfd)); |
| 402 | bfd_map_over_sections (core_bfd, print_bfd_section_info, arg); |
| 403 | } |
| 404 | } |
| 405 | |
| 406 | void |
| 407 | maintenance_print_statistics (char *args, int from_tty) |
| 408 | { |
| 409 | print_objfile_statistics (); |
| 410 | print_symbol_bcache_statistics (); |
| 411 | } |
| 412 | |
| 413 | static void |
| 414 | maintenance_print_architecture (char *args, int from_tty) |
| 415 | { |
| 416 | if (args == NULL) |
| 417 | gdbarch_dump (current_gdbarch, gdb_stdout); |
| 418 | else |
| 419 | { |
| 420 | struct ui_file *file = gdb_fopen (args, "w"); |
| 421 | if (file == NULL) |
| 422 | perror_with_name (_("maintenance print architecture")); |
| 423 | gdbarch_dump (current_gdbarch, file); |
| 424 | ui_file_delete (file); |
| 425 | } |
| 426 | } |
| 427 | |
| 428 | /* The "maintenance print" command is defined as a prefix, with |
| 429 | allow_unknown 0. Therefore, its own definition is called only for |
| 430 | "maintenance print" with no args. */ |
| 431 | |
| 432 | static void |
| 433 | maintenance_print_command (char *arg, int from_tty) |
| 434 | { |
| 435 | printf_unfiltered (_("\"maintenance print\" must be followed by the name of a print command.\n")); |
| 436 | help_list (maintenanceprintlist, "maintenance print ", -1, gdb_stdout); |
| 437 | } |
| 438 | |
| 439 | /* The "maintenance translate-address" command converts a section and address |
| 440 | to a symbol. This can be called in two ways: |
| 441 | maintenance translate-address <secname> <addr> |
| 442 | or maintenance translate-address <addr> |
| 443 | */ |
| 444 | |
| 445 | static void |
| 446 | maintenance_translate_address (char *arg, int from_tty) |
| 447 | { |
| 448 | CORE_ADDR address; |
| 449 | asection *sect; |
| 450 | char *p; |
| 451 | struct minimal_symbol *sym; |
| 452 | struct objfile *objfile; |
| 453 | |
| 454 | if (arg == NULL || *arg == 0) |
| 455 | error (_("requires argument (address or section + address)")); |
| 456 | |
| 457 | sect = NULL; |
| 458 | p = arg; |
| 459 | |
| 460 | if (!isdigit (*p)) |
| 461 | { /* See if we have a valid section name */ |
| 462 | while (*p && !isspace (*p)) /* Find end of section name */ |
| 463 | p++; |
| 464 | if (*p == '\000') /* End of command? */ |
| 465 | error (_("Need to specify <section-name> and <address>")); |
| 466 | *p++ = '\000'; |
| 467 | while (isspace (*p)) |
| 468 | p++; /* Skip whitespace */ |
| 469 | |
| 470 | ALL_OBJFILES (objfile) |
| 471 | { |
| 472 | sect = bfd_get_section_by_name (objfile->obfd, arg); |
| 473 | if (sect != NULL) |
| 474 | break; |
| 475 | } |
| 476 | |
| 477 | if (!sect) |
| 478 | error (_("Unknown section %s."), arg); |
| 479 | } |
| 480 | |
| 481 | address = parse_and_eval_address (p); |
| 482 | |
| 483 | if (sect) |
| 484 | sym = lookup_minimal_symbol_by_pc_section (address, sect); |
| 485 | else |
| 486 | sym = lookup_minimal_symbol_by_pc (address); |
| 487 | |
| 488 | if (sym) |
| 489 | printf_filtered ("%s+%s\n", |
| 490 | SYMBOL_PRINT_NAME (sym), |
| 491 | paddr_u (address - SYMBOL_VALUE_ADDRESS (sym))); |
| 492 | else if (sect) |
| 493 | printf_filtered (_("no symbol at %s:0x%s\n"), sect->name, paddr (address)); |
| 494 | else |
| 495 | printf_filtered (_("no symbol at 0x%s\n"), paddr (address)); |
| 496 | |
| 497 | return; |
| 498 | } |
| 499 | |
| 500 | |
| 501 | /* When a command is deprecated the user will be warned the first time |
| 502 | the command is used. If possible, a replacement will be |
| 503 | offered. */ |
| 504 | |
| 505 | static void |
| 506 | maintenance_deprecate (char *args, int from_tty) |
| 507 | { |
| 508 | if (args == NULL || *args == '\0') |
| 509 | { |
| 510 | printf_unfiltered (_("\"maintenance deprecate\" takes an argument, \n\ |
| 511 | the command you want to deprecate, and optionally the replacement command \n\ |
| 512 | enclosed in quotes.\n")); |
| 513 | } |
| 514 | |
| 515 | maintenance_do_deprecate (args, 1); |
| 516 | |
| 517 | } |
| 518 | |
| 519 | |
| 520 | static void |
| 521 | maintenance_undeprecate (char *args, int from_tty) |
| 522 | { |
| 523 | if (args == NULL || *args == '\0') |
| 524 | { |
| 525 | printf_unfiltered (_("\"maintenance undeprecate\" takes an argument, \n\ |
| 526 | the command you want to undeprecate.\n")); |
| 527 | } |
| 528 | |
| 529 | maintenance_do_deprecate (args, 0); |
| 530 | |
| 531 | } |
| 532 | |
| 533 | /* You really shouldn't be using this. It is just for the testsuite. |
| 534 | Rather, you should use deprecate_cmd() when the command is created |
| 535 | in _initialize_blah(). |
| 536 | |
| 537 | This function deprecates a command and optionally assigns it a |
| 538 | replacement. */ |
| 539 | |
| 540 | static void |
| 541 | maintenance_do_deprecate (char *text, int deprecate) |
| 542 | { |
| 543 | |
| 544 | struct cmd_list_element *alias = NULL; |
| 545 | struct cmd_list_element *prefix_cmd = NULL; |
| 546 | struct cmd_list_element *cmd = NULL; |
| 547 | |
| 548 | char *start_ptr = NULL; |
| 549 | char *end_ptr = NULL; |
| 550 | int len; |
| 551 | char *replacement = NULL; |
| 552 | |
| 553 | if (text == NULL) |
| 554 | return; |
| 555 | |
| 556 | if (!lookup_cmd_composition (text, &alias, &prefix_cmd, &cmd)) |
| 557 | { |
| 558 | printf_filtered (_("Can't find command '%s' to deprecate.\n"), text); |
| 559 | return; |
| 560 | } |
| 561 | |
| 562 | if (deprecate) |
| 563 | { |
| 564 | /* look for a replacement command */ |
| 565 | start_ptr = strchr (text, '\"'); |
| 566 | if (start_ptr != NULL) |
| 567 | { |
| 568 | start_ptr++; |
| 569 | end_ptr = strrchr (start_ptr, '\"'); |
| 570 | if (end_ptr != NULL) |
| 571 | { |
| 572 | len = end_ptr - start_ptr; |
| 573 | start_ptr[len] = '\0'; |
| 574 | replacement = xstrdup (start_ptr); |
| 575 | } |
| 576 | } |
| 577 | } |
| 578 | |
| 579 | if (!start_ptr || !end_ptr) |
| 580 | replacement = NULL; |
| 581 | |
| 582 | |
| 583 | /* If they used an alias, we only want to deprecate the alias. |
| 584 | |
| 585 | Note the MALLOCED_REPLACEMENT test. If the command's replacement |
| 586 | string was allocated at compile time we don't want to free the |
| 587 | memory. */ |
| 588 | if (alias) |
| 589 | { |
| 590 | |
| 591 | if (alias->flags & MALLOCED_REPLACEMENT) |
| 592 | xfree (alias->replacement); |
| 593 | |
| 594 | if (deprecate) |
| 595 | alias->flags |= (DEPRECATED_WARN_USER | CMD_DEPRECATED); |
| 596 | else |
| 597 | alias->flags &= ~(DEPRECATED_WARN_USER | CMD_DEPRECATED); |
| 598 | alias->replacement = replacement; |
| 599 | alias->flags |= MALLOCED_REPLACEMENT; |
| 600 | return; |
| 601 | } |
| 602 | else if (cmd) |
| 603 | { |
| 604 | if (cmd->flags & MALLOCED_REPLACEMENT) |
| 605 | xfree (cmd->replacement); |
| 606 | |
| 607 | if (deprecate) |
| 608 | cmd->flags |= (DEPRECATED_WARN_USER | CMD_DEPRECATED); |
| 609 | else |
| 610 | cmd->flags &= ~(DEPRECATED_WARN_USER | CMD_DEPRECATED); |
| 611 | cmd->replacement = replacement; |
| 612 | cmd->flags |= MALLOCED_REPLACEMENT; |
| 613 | return; |
| 614 | } |
| 615 | } |
| 616 | |
| 617 | /* Maintenance set/show framework. */ |
| 618 | |
| 619 | struct cmd_list_element *maintenance_set_cmdlist; |
| 620 | struct cmd_list_element *maintenance_show_cmdlist; |
| 621 | |
| 622 | static void |
| 623 | maintenance_set_cmd (char *args, int from_tty) |
| 624 | { |
| 625 | printf_unfiltered (_("\"maintenance set\" must be followed by the name of a set command.\n")); |
| 626 | help_list (maintenance_set_cmdlist, "maintenance set ", -1, gdb_stdout); |
| 627 | } |
| 628 | |
| 629 | static void |
| 630 | maintenance_show_cmd (char *args, int from_tty) |
| 631 | { |
| 632 | cmd_show_list (maintenance_show_cmdlist, from_tty, ""); |
| 633 | } |
| 634 | |
| 635 | /* Profiling support. */ |
| 636 | |
| 637 | static int maintenance_profile_p; |
| 638 | static void |
| 639 | show_maintenance_profile_p (struct ui_file *file, int from_tty, |
| 640 | struct cmd_list_element *c, const char *value) |
| 641 | { |
| 642 | fprintf_filtered (file, _("Internal profiling is %s.\n"), value); |
| 643 | } |
| 644 | |
| 645 | #if defined (HAVE_MONSTARTUP) && defined (HAVE__MCLEANUP) |
| 646 | |
| 647 | #ifdef HAVE__ETEXT |
| 648 | extern char _etext; |
| 649 | #define TEXTEND &_etext |
| 650 | #else |
| 651 | extern char etext; |
| 652 | #define TEXTEND &etext |
| 653 | #endif |
| 654 | |
| 655 | static int profiling_state; |
| 656 | |
| 657 | static void |
| 658 | mcleanup_wrapper (void) |
| 659 | { |
| 660 | extern void _mcleanup (void); |
| 661 | |
| 662 | if (profiling_state) |
| 663 | _mcleanup (); |
| 664 | } |
| 665 | |
| 666 | static void |
| 667 | maintenance_set_profile_cmd (char *args, int from_tty, struct cmd_list_element *c) |
| 668 | { |
| 669 | if (maintenance_profile_p == profiling_state) |
| 670 | return; |
| 671 | |
| 672 | profiling_state = maintenance_profile_p; |
| 673 | |
| 674 | if (maintenance_profile_p) |
| 675 | { |
| 676 | static int profiling_initialized; |
| 677 | |
| 678 | extern void monstartup (unsigned long, unsigned long); |
| 679 | extern int main(); |
| 680 | |
| 681 | if (!profiling_initialized) |
| 682 | { |
| 683 | atexit (mcleanup_wrapper); |
| 684 | profiling_initialized = 1; |
| 685 | } |
| 686 | |
| 687 | /* "main" is now always the first function in the text segment, so use |
| 688 | its address for monstartup. */ |
| 689 | monstartup ((unsigned long) &main, (unsigned long) TEXTEND); |
| 690 | } |
| 691 | else |
| 692 | { |
| 693 | extern void _mcleanup (void); |
| 694 | _mcleanup (); |
| 695 | } |
| 696 | } |
| 697 | #else |
| 698 | static void |
| 699 | maintenance_set_profile_cmd (char *args, int from_tty, struct cmd_list_element *c) |
| 700 | { |
| 701 | error (_("Profiling support is not available on this system.")); |
| 702 | } |
| 703 | #endif |
| 704 | |
| 705 | void |
| 706 | _initialize_maint_cmds (void) |
| 707 | { |
| 708 | struct cmd_list_element *tmpcmd; |
| 709 | |
| 710 | add_prefix_cmd ("maintenance", class_maintenance, maintenance_command, _("\ |
| 711 | Commands for use by GDB maintainers.\n\ |
| 712 | Includes commands to dump specific internal GDB structures in\n\ |
| 713 | a human readable form, to cause GDB to deliberately dump core,\n\ |
| 714 | to test internal functions such as the C++/ObjC demangler, etc."), |
| 715 | &maintenancelist, "maintenance ", 0, |
| 716 | &cmdlist); |
| 717 | |
| 718 | add_com_alias ("mt", "maintenance", class_maintenance, 1); |
| 719 | |
| 720 | add_prefix_cmd ("info", class_maintenance, maintenance_info_command, _("\ |
| 721 | Commands for showing internal info about the program being debugged."), |
| 722 | &maintenanceinfolist, "maintenance info ", 0, |
| 723 | &maintenancelist); |
| 724 | add_alias_cmd ("i", "info", class_maintenance, 1, &maintenancelist); |
| 725 | |
| 726 | add_cmd ("sections", class_maintenance, maintenance_info_sections, _("\ |
| 727 | List the BFD sections of the exec and core files. \n\ |
| 728 | Arguments may be any combination of:\n\ |
| 729 | [one or more section names]\n\ |
| 730 | ALLOC LOAD RELOC READONLY CODE DATA ROM CONSTRUCTOR\n\ |
| 731 | HAS_CONTENTS NEVER_LOAD COFF_SHARED_LIBRARY IS_COMMON\n\ |
| 732 | Sections matching any argument will be listed (no argument\n\ |
| 733 | implies all sections). In addition, the special argument\n\ |
| 734 | ALLOBJ\n\ |
| 735 | lists all sections from all object files, including shared libraries."), |
| 736 | &maintenanceinfolist); |
| 737 | |
| 738 | add_prefix_cmd ("print", class_maintenance, maintenance_print_command, |
| 739 | _("Maintenance command for printing GDB internal state."), |
| 740 | &maintenanceprintlist, "maintenance print ", 0, |
| 741 | &maintenancelist); |
| 742 | |
| 743 | add_prefix_cmd ("set", class_maintenance, maintenance_set_cmd, _("\ |
| 744 | Set GDB internal variables used by the GDB maintainer.\n\ |
| 745 | Configure variables internal to GDB that aid in GDB's maintenance"), |
| 746 | &maintenance_set_cmdlist, "maintenance set ", |
| 747 | 0/*allow-unknown*/, |
| 748 | &maintenancelist); |
| 749 | |
| 750 | add_prefix_cmd ("show", class_maintenance, maintenance_show_cmd, _("\ |
| 751 | Show GDB internal variables used by the GDB maintainer.\n\ |
| 752 | Configure variables internal to GDB that aid in GDB's maintenance"), |
| 753 | &maintenance_show_cmdlist, "maintenance show ", |
| 754 | 0/*allow-unknown*/, |
| 755 | &maintenancelist); |
| 756 | |
| 757 | #ifndef _WIN32 |
| 758 | add_cmd ("dump-me", class_maintenance, maintenance_dump_me, _("\ |
| 759 | Get fatal error; make debugger dump its core.\n\ |
| 760 | GDB sets its handling of SIGQUIT back to SIG_DFL and then sends\n\ |
| 761 | itself a SIGQUIT signal."), |
| 762 | &maintenancelist); |
| 763 | #endif |
| 764 | |
| 765 | add_cmd ("internal-error", class_maintenance, |
| 766 | maintenance_internal_error, _("\ |
| 767 | Give GDB an internal error.\n\ |
| 768 | Cause GDB to behave as if an internal error was detected."), |
| 769 | &maintenancelist); |
| 770 | |
| 771 | add_cmd ("internal-warning", class_maintenance, |
| 772 | maintenance_internal_warning, _("\ |
| 773 | Give GDB an internal warning.\n\ |
| 774 | Cause GDB to behave as if an internal warning was reported."), |
| 775 | &maintenancelist); |
| 776 | |
| 777 | add_cmd ("demangle", class_maintenance, maintenance_demangle, _("\ |
| 778 | Demangle a C++/ObjC mangled name.\n\ |
| 779 | Call internal GDB demangler routine to demangle a C++ link name\n\ |
| 780 | and prints the result."), |
| 781 | &maintenancelist); |
| 782 | |
| 783 | add_cmd ("time", class_maintenance, maintenance_time_display, _("\ |
| 784 | Set the display of time usage.\n\ |
| 785 | If nonzero, will cause the execution time for each command to be\n\ |
| 786 | displayed, following the command's output."), |
| 787 | &maintenancelist); |
| 788 | |
| 789 | add_cmd ("space", class_maintenance, maintenance_space_display, _("\ |
| 790 | Set the display of space usage.\n\ |
| 791 | If nonzero, will cause the execution space for each command to be\n\ |
| 792 | displayed, following the command's output."), |
| 793 | &maintenancelist); |
| 794 | |
| 795 | add_cmd ("type", class_maintenance, maintenance_print_type, _("\ |
| 796 | Print a type chain for a given symbol.\n\ |
| 797 | For each node in a type chain, print the raw data for each member of\n\ |
| 798 | the type structure, and the interpretation of the data."), |
| 799 | &maintenanceprintlist); |
| 800 | |
| 801 | add_cmd ("symbols", class_maintenance, maintenance_print_symbols, _("\ |
| 802 | Print dump of current symbol definitions.\n\ |
| 803 | Entries in the full symbol table are dumped to file OUTFILE.\n\ |
| 804 | If a SOURCE file is specified, dump only that file's symbols."), |
| 805 | &maintenanceprintlist); |
| 806 | |
| 807 | add_cmd ("msymbols", class_maintenance, maintenance_print_msymbols, _("\ |
| 808 | Print dump of current minimal symbol definitions.\n\ |
| 809 | Entries in the minimal symbol table are dumped to file OUTFILE.\n\ |
| 810 | If a SOURCE file is specified, dump only that file's minimal symbols."), |
| 811 | &maintenanceprintlist); |
| 812 | |
| 813 | add_cmd ("psymbols", class_maintenance, maintenance_print_psymbols, _("\ |
| 814 | Print dump of current partial symbol definitions.\n\ |
| 815 | Entries in the partial symbol table are dumped to file OUTFILE.\n\ |
| 816 | If a SOURCE file is specified, dump only that file's partial symbols."), |
| 817 | &maintenanceprintlist); |
| 818 | |
| 819 | add_cmd ("objfiles", class_maintenance, maintenance_print_objfiles, |
| 820 | _("Print dump of current object file definitions."), |
| 821 | &maintenanceprintlist); |
| 822 | |
| 823 | add_cmd ("symtabs", class_maintenance, maintenance_info_symtabs, _("\ |
| 824 | List the full symbol tables for all object files.\n\ |
| 825 | This does not include information about individual symbols, blocks, or\n\ |
| 826 | linetables --- just the symbol table structures themselves.\n\ |
| 827 | With an argument REGEXP, list the symbol tables whose names that match that."), |
| 828 | &maintenanceinfolist); |
| 829 | |
| 830 | add_cmd ("psymtabs", class_maintenance, maintenance_info_psymtabs, _("\ |
| 831 | List the partial symbol tables for all object files.\n\ |
| 832 | This does not include information about individual partial symbols,\n\ |
| 833 | just the symbol table structures themselves."), |
| 834 | &maintenanceinfolist); |
| 835 | |
| 836 | add_cmd ("statistics", class_maintenance, maintenance_print_statistics, |
| 837 | _("Print statistics about internal gdb state."), |
| 838 | &maintenanceprintlist); |
| 839 | |
| 840 | add_cmd ("architecture", class_maintenance, |
| 841 | maintenance_print_architecture, _("\ |
| 842 | Print the internal architecture configuration.\n\ |
| 843 | Takes an optional file parameter."), |
| 844 | &maintenanceprintlist); |
| 845 | |
| 846 | add_cmd ("check-symtabs", class_maintenance, maintenance_check_symtabs, |
| 847 | _("Check consistency of psymtabs and symtabs."), |
| 848 | &maintenancelist); |
| 849 | |
| 850 | add_cmd ("translate-address", class_maintenance, maintenance_translate_address, |
| 851 | _("Translate a section name and address to a symbol."), |
| 852 | &maintenancelist); |
| 853 | |
| 854 | add_cmd ("deprecate", class_maintenance, maintenance_deprecate, _("\ |
| 855 | Deprecate a command. Note that this is just in here so the \n\ |
| 856 | testsuite can check the comamnd deprecator. You probably shouldn't use this,\n\ |
| 857 | rather you should use the C function deprecate_cmd(). If you decide you \n\ |
| 858 | want to use it: maintenance deprecate 'commandname' \"replacement\". The \n\ |
| 859 | replacement is optional."), &maintenancelist); |
| 860 | |
| 861 | add_cmd ("undeprecate", class_maintenance, maintenance_undeprecate, _("\ |
| 862 | Undeprecate a command. Note that this is just in here so the \n\ |
| 863 | testsuite can check the comamnd deprecator. You probably shouldn't use this,\n\ |
| 864 | If you decide you want to use it: maintenance undeprecate 'commandname'"), |
| 865 | &maintenancelist); |
| 866 | |
| 867 | add_setshow_zinteger_cmd ("watchdog", class_maintenance, &watchdog, _("\ |
| 868 | Set watchdog timer."), _("\ |
| 869 | Show watchdog timer."), _("\ |
| 870 | When non-zero, this timeout is used instead of waiting forever for a target\n\ |
| 871 | to finish a low-level step or continue operation. If the specified amount\n\ |
| 872 | of time passes without a response from the target, an error occurs."), |
| 873 | NULL, |
| 874 | show_watchdog, |
| 875 | &setlist, &showlist); |
| 876 | |
| 877 | add_setshow_boolean_cmd ("profile", class_maintenance, |
| 878 | &maintenance_profile_p, _("\ |
| 879 | Set internal profiling."), _("\ |
| 880 | Show internal profiling."), _("\ |
| 881 | When enabled GDB is profiled."), |
| 882 | maintenance_set_profile_cmd, |
| 883 | show_maintenance_profile_p, |
| 884 | &maintenance_set_cmdlist, |
| 885 | &maintenance_show_cmdlist); |
| 886 | } |