1 /* *INDENT-OFF* */ /* ATTRIBUTE_PRINTF confuses indent, avoid running it 2 for now. */ 3 /* Basic, host-specific, and target-specific definitions for GDB. 4 Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 5 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 6 2010, 2011 Free Software Foundation, Inc. 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 3 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, see <http://www.gnu.org/licenses/>. */ 22 23 #ifndef DEFS_H 24 #define DEFS_H 25 26 #include "config.h" /* Generated by configure. */ 27 28 #include <sys/types.h> 29 #include <stdio.h> 30 #include <errno.h> /* System call error return status. */ 31 #include <limits.h> 32 #include <stdint.h> 33 34 /* The libdecnumber library, on which GDB depends, includes a header file 35 called gstdint.h instead of relying directly on stdint.h. GDB, on the 36 other hand, includes stdint.h directly, relying on the fact that gnulib 37 generates a copy if the system doesn't provide one or if it is missing 38 some features. Unfortunately, gstdint.h and stdint.h cannot be included 39 at the same time, which may happen when we include a file from 40 libdecnumber. 41 42 The following macro definition effectively prevents the inclusion of 43 gstdint.h, as all the definitions it provides are guarded against 44 the GCC_GENERATED_STDINT_H macro. We already have gnulib/stdint.h 45 included, so it's ok to blank out gstdint.h. */ 46 #define GCC_GENERATED_STDINT_H 1 47 48 #ifdef HAVE_STDDEF_H 49 #include <stddef.h> 50 #endif 51 52 #ifdef HAVE_UNISTD_H 53 #include <unistd.h> 54 #endif 55 56 #include <fcntl.h> 57 58 /* First include ansidecl.h so we can use the various macro definitions 59 here and in all subsequent file inclusions. */ 60 61 #include "ansidecl.h" 62 63 #include "gdb_locale.h" 64 65 #include "gdb_wchar.h" 66 67 /* For ``enum target_signal''. */ 68 #include "gdb/signals.h" 69 70 /* Just in case they're not defined in stdio.h. */ 71 72 #ifndef SEEK_SET 73 #define SEEK_SET 0 74 #endif 75 #ifndef SEEK_CUR 76 #define SEEK_CUR 1 77 #endif 78 79 /* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms. 80 It is used as an access modifier in calls to open(), where it acts 81 similarly to the "b" character in fopen()'s MODE argument. On Posix 82 platforms it should be a no-op, so it is defined as 0 here. This 83 ensures that the symbol may be used freely elsewhere in gdb. */ 84 85 #ifndef O_BINARY 86 #define O_BINARY 0 87 #endif 88 89 #include <stdarg.h> /* For va_list. */ 90 91 #include "libiberty.h" 92 93 /* Rather than duplicate all the logic in BFD for figuring out what 94 types to use (which can be pretty complicated), symply define them 95 in terms of the corresponding type from BFD. */ 96 97 #include "bfd.h" 98 99 /* A byte from the program being debugged. */ 100 typedef bfd_byte gdb_byte; 101 102 /* An address in the program being debugged. Host byte order. */ 103 typedef bfd_vma CORE_ADDR; 104 105 /* The largest CORE_ADDR value. */ 106 #define CORE_ADDR_MAX (~ (CORE_ADDR) 0) 107 108 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */ 109 110 #ifndef LONGEST 111 112 #ifdef BFD64 113 114 #define LONGEST BFD_HOST_64_BIT 115 #define ULONGEST BFD_HOST_U_64_BIT 116 117 #else /* No BFD64 */ 118 119 #ifdef CC_HAS_LONG_LONG 120 #define LONGEST long long 121 #define ULONGEST unsigned long long 122 #else 123 #ifdef BFD_HOST_64_BIT 124 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long 125 (e.g. i386-windows) so try it. */ 126 #define LONGEST BFD_HOST_64_BIT 127 #define ULONGEST BFD_HOST_U_64_BIT 128 #else 129 #define LONGEST long 130 #define ULONGEST unsigned long 131 #endif 132 #endif 133 134 #endif /* No BFD64 */ 135 136 #endif /* ! LONGEST */ 137 138 #ifndef min 139 #define min(a, b) ((a) < (b) ? (a) : (b)) 140 #endif 141 #ifndef max 142 #define max(a, b) ((a) > (b) ? (a) : (b)) 143 #endif 144 145 /* Check if a character is one of the commonly used C++ marker characters. */ 146 extern int is_cplus_marker (int); 147 148 /* Enable xdb commands if set. */ 149 extern int xdb_commands; 150 151 /* Enable dbx commands if set. */ 152 extern int dbx_commands; 153 154 /* System root path, used to find libraries etc. */ 155 extern char *gdb_sysroot; 156 157 /* GDB datadir, used to store data files. */ 158 extern char *gdb_datadir; 159 160 /* If non-NULL, the possibly relocated path to python's "lib" directory 161 specified with --with-python. */ 162 extern char *python_libdir; 163 164 /* Search path for separate debug files. */ 165 extern char *debug_file_directory; 166 167 extern int quit_flag; 168 extern int immediate_quit; 169 extern int sevenbit_strings; 170 171 extern void quit (void); 172 173 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance 174 benefits of having a ``QUIT'' macro rather than a function are 175 marginal. If the overhead of a QUIT function call is proving 176 significant then its calling frequency should probably be reduced 177 [kingdon]. A profile analyzing the current situtation is 178 needed. */ 179 180 #define QUIT { \ 181 if (quit_flag) quit (); \ 182 if (deprecated_interactive_hook) deprecated_interactive_hook (); \ 183 } 184 185 /* Languages represented in the symbol table and elsewhere. 186 This should probably be in language.h, but since enum's can't 187 be forward declared to satisfy opaque references before their 188 actual definition, needs to be here. */ 189 190 enum language 191 { 192 language_unknown, /* Language not known */ 193 language_auto, /* Placeholder for automatic setting */ 194 language_c, /* C */ 195 language_cplus, /* C++ */ 196 language_d, /* D */ 197 language_objc, /* Objective-C */ 198 language_java, /* Java */ 199 language_fortran, /* Fortran */ 200 language_m2, /* Modula-2 */ 201 language_asm, /* Assembly language */ 202 language_pascal, /* Pascal */ 203 language_ada, /* Ada */ 204 language_opencl, /* OpenCL */ 205 language_minimal, /* All other languages, minimal support only */ 206 nr_languages 207 }; 208 209 enum precision_type 210 { 211 single_precision, 212 double_precision, 213 unspecified_precision 214 }; 215 216 /* A generic, not quite boolean, enumeration. */ 217 enum auto_boolean 218 { 219 AUTO_BOOLEAN_TRUE, 220 AUTO_BOOLEAN_FALSE, 221 AUTO_BOOLEAN_AUTO 222 }; 223 224 /* Potential ways that a function can return a value of a given type. */ 225 enum return_value_convention 226 { 227 /* Where the return value has been squeezed into one or more 228 registers. */ 229 RETURN_VALUE_REGISTER_CONVENTION, 230 /* Commonly known as the "struct return convention". The caller 231 passes an additional hidden first parameter to the caller. That 232 parameter contains the address at which the value being returned 233 should be stored. While typically, and historically, used for 234 large structs, this is convention is applied to values of many 235 different types. */ 236 RETURN_VALUE_STRUCT_CONVENTION, 237 /* Like the "struct return convention" above, but where the ABI 238 guarantees that the called function stores the address at which 239 the value being returned is stored in a well-defined location, 240 such as a register or memory slot in the stack frame. Don't use 241 this if the ABI doesn't explicitly guarantees this. */ 242 RETURN_VALUE_ABI_RETURNS_ADDRESS, 243 /* Like the "struct return convention" above, but where the ABI 244 guarantees that the address at which the value being returned is 245 stored will be available in a well-defined location, such as a 246 register or memory slot in the stack frame. Don't use this if 247 the ABI doesn't explicitly guarantees this. */ 248 RETURN_VALUE_ABI_PRESERVES_ADDRESS, 249 }; 250 251 /* the cleanup list records things that have to be undone 252 if an error happens (descriptors to be closed, memory to be freed, etc.) 253 Each link in the chain records a function to call and an 254 argument to give it. 255 256 Use make_cleanup to add an element to the cleanup chain. 257 Use do_cleanups to do all cleanup actions back to a given 258 point in the chain. Use discard_cleanups to remove cleanups 259 from the chain back to a given point, not doing them. 260 261 If the argument is pointer to allocated memory, then you need to 262 to additionally set the 'free_arg' member to a function that will 263 free that memory. This function will be called both when the cleanup 264 is executed and when it's discarded. */ 265 266 struct cleanup 267 { 268 struct cleanup *next; 269 void (*function) (void *); 270 void (*free_arg) (void *); 271 void *arg; 272 }; 273 274 /* Be conservative and use enum bitfields only with GCC. 275 This is copied from gcc 3.3.1, system.h. */ 276 277 #if defined(__GNUC__) && (__GNUC__ >= 2) 278 #define ENUM_BITFIELD(TYPE) enum TYPE 279 #else 280 #define ENUM_BITFIELD(TYPE) unsigned int 281 #endif 282 283 /* vec.h-style vectors of strings want a typedef for char * . */ 284 285 typedef char * char_ptr; 286 287 /* Needed for various prototypes */ 288 289 struct symtab; 290 struct breakpoint; 291 struct frame_info; 292 struct gdbarch; 293 294 /* From utils.c */ 295 296 extern void initialize_utils (void); 297 298 extern void notice_quit (void); 299 300 extern int strcmp_iw (const char *, const char *); 301 302 extern int strcmp_iw_ordered (const char *, const char *); 303 304 extern int streq (const char *, const char *); 305 306 extern int subset_compare (char *, char *); 307 308 extern char *safe_strerror (int); 309 310 extern void set_display_time (int); 311 312 extern void set_display_space (int); 313 314 #define ALL_CLEANUPS ((struct cleanup *)0) 315 316 extern void do_cleanups (struct cleanup *); 317 extern void do_final_cleanups (struct cleanup *); 318 319 extern void discard_cleanups (struct cleanup *); 320 extern void discard_final_cleanups (struct cleanup *); 321 extern void discard_my_cleanups (struct cleanup **, struct cleanup *); 322 323 /* NOTE: cagney/2000-03-04: This typedef is strictly for the 324 make_cleanup function declarations below. Do not use this typedef 325 as a cast when passing functions into the make_cleanup() code. 326 Instead either use a bounce function or add a wrapper function. 327 Calling a f(char*) function with f(void*) is non-portable. */ 328 typedef void (make_cleanup_ftype) (void *); 329 330 extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *); 331 332 extern struct cleanup *make_cleanup_dtor (make_cleanup_ftype *, void *, 333 void (*dtor) (void *)); 334 335 extern struct cleanup *make_cleanup_freeargv (char **); 336 337 struct ui_file; 338 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *); 339 340 struct ui_out; 341 extern struct cleanup * 342 make_cleanup_ui_out_redirect_pop (struct ui_out *uiout); 343 344 struct section_addr_info; 345 extern struct cleanup *(make_cleanup_free_section_addr_info 346 (struct section_addr_info *)); 347 348 extern struct cleanup *make_cleanup_close (int fd); 349 350 extern struct cleanup *make_cleanup_fclose (FILE *file); 351 352 extern struct cleanup *make_cleanup_bfd_close (bfd *abfd); 353 354 struct obstack; 355 extern struct cleanup *make_cleanup_obstack_free (struct obstack *obstack); 356 357 extern struct cleanup *make_cleanup_restore_integer (int *variable); 358 extern struct cleanup *make_cleanup_restore_uinteger (unsigned int *variable); 359 360 struct target_ops; 361 extern struct cleanup *make_cleanup_unpush_target (struct target_ops *ops); 362 363 extern struct cleanup * 364 make_cleanup_restore_ui_file (struct ui_file **variable); 365 366 extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *); 367 368 extern struct cleanup *make_my_cleanup (struct cleanup **, 369 make_cleanup_ftype *, void *); 370 371 extern struct cleanup *make_my_cleanup2 (struct cleanup **, 372 make_cleanup_ftype *, void *, 373 void (*free_arg) (void *)); 374 375 extern struct cleanup *save_cleanups (void); 376 extern struct cleanup *save_final_cleanups (void); 377 extern struct cleanup *save_my_cleanups (struct cleanup **); 378 379 extern void restore_cleanups (struct cleanup *); 380 extern void restore_final_cleanups (struct cleanup *); 381 extern void restore_my_cleanups (struct cleanup **, struct cleanup *); 382 383 extern void free_current_contents (void *); 384 385 extern void null_cleanup (void *); 386 387 extern struct cleanup *make_command_stats_cleanup (int); 388 389 extern int myread (int, char *, int); 390 391 extern int query (const char *, ...) ATTRIBUTE_PRINTF (1, 2); 392 extern int nquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2); 393 extern int yquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2); 394 395 extern void init_page_info (void); 396 397 extern struct cleanup *make_cleanup_restore_page_info (void); 398 extern struct cleanup * 399 set_batch_flag_and_make_cleanup_restore_page_info (void); 400 401 extern char *gdb_realpath (const char *); 402 extern char *xfullpath (const char *); 403 404 extern unsigned long gnu_debuglink_crc32 (unsigned long crc, 405 unsigned char *buf, size_t len); 406 407 ULONGEST strtoulst (const char *num, const char **trailer, int base); 408 409 char *ldirname (const char *filename); 410 411 char **gdb_buildargv (const char *); 412 413 int compare_positive_ints (const void *ap, const void *bp); 414 415 /* A wrapper for bfd_errmsg to produce a more helpful error message 416 in the case of bfd_error_file_ambiguously recognized. 417 MATCHING, if non-NULL, is the corresponding argument to 418 bfd_check_format_matches, and will be freed. */ 419 420 extern const char *gdb_bfd_errmsg (bfd_error_type error_tag, char **matching); 421 422 extern int parse_pid_to_attach (char *args); 423 424 /* From demangle.c */ 425 426 extern void set_demangling_style (char *); 427 428 429 /* Annotation stuff. */ 430 431 extern int annotation_level; /* in stack.c */ 432 433 extern void begin_line (void); 434 435 extern void wrap_here (char *); 436 437 extern void reinitialize_more_filter (void); 438 439 /* Normal results */ 440 extern struct ui_file *gdb_stdout; 441 /* Input stream */ 442 extern struct ui_file *gdb_stdin; 443 /* Serious error notifications */ 444 extern struct ui_file *gdb_stderr; 445 /* Log/debug/trace messages that should bypass normal stdout/stderr 446 filtering. For moment, always call this stream using 447 *_unfiltered. In the very near future that restriction shall be 448 removed - either call shall be unfiltered. (cagney 1999-06-13). */ 449 extern struct ui_file *gdb_stdlog; 450 /* Target output that should bypass normal stdout/stderr filtering. 451 For moment, always call this stream using *_unfiltered. In the 452 very near future that restriction shall be removed - either call 453 shall be unfiltered. (cagney 1999-07-02). */ 454 extern struct ui_file *gdb_stdtarg; 455 extern struct ui_file *gdb_stdtargerr; 456 extern struct ui_file *gdb_stdtargin; 457 458 #include "ui-file.h" 459 460 /* More generic printf like operations. Filtered versions may return 461 non-locally on error. */ 462 463 extern void fputs_filtered (const char *, struct ui_file *); 464 465 extern void fputs_unfiltered (const char *, struct ui_file *); 466 467 extern int fputc_filtered (int c, struct ui_file *); 468 469 extern int fputc_unfiltered (int c, struct ui_file *); 470 471 extern int putchar_filtered (int c); 472 473 extern int putchar_unfiltered (int c); 474 475 extern void puts_filtered (const char *); 476 477 extern void puts_unfiltered (const char *); 478 479 extern void puts_filtered_tabular (char *string, int width, int right); 480 481 extern void puts_debug (char *prefix, char *string, char *suffix); 482 483 extern void vprintf_filtered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0); 484 485 extern void vfprintf_filtered (struct ui_file *, const char *, va_list) 486 ATTRIBUTE_PRINTF (2, 0); 487 488 extern void fprintf_filtered (struct ui_file *, const char *, ...) 489 ATTRIBUTE_PRINTF (2, 3); 490 491 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) 492 ATTRIBUTE_PRINTF (3, 4); 493 494 extern void printf_filtered (const char *, ...) ATTRIBUTE_PRINTF (1, 2); 495 496 extern void printfi_filtered (int, const char *, ...) ATTRIBUTE_PRINTF (2, 3); 497 498 extern void vprintf_unfiltered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0); 499 500 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) 501 ATTRIBUTE_PRINTF (2, 0); 502 503 extern void fprintf_unfiltered (struct ui_file *, const char *, ...) 504 ATTRIBUTE_PRINTF (2, 3); 505 506 extern void printf_unfiltered (const char *, ...) ATTRIBUTE_PRINTF (1, 2); 507 508 extern void print_spaces (int, struct ui_file *); 509 510 extern void print_spaces_filtered (int, struct ui_file *); 511 512 extern char *n_spaces (int); 513 514 extern void fputstr_filtered (const char *str, int quotr, 515 struct ui_file * stream); 516 517 extern void fputstr_unfiltered (const char *str, int quotr, 518 struct ui_file * stream); 519 520 extern void fputstrn_filtered (const char *str, int n, int quotr, 521 struct ui_file * stream); 522 523 extern void fputstrn_unfiltered (const char *str, int n, int quotr, 524 struct ui_file * stream); 525 526 /* Display the host ADDR on STREAM formatted as ``0x%x''. */ 527 extern void gdb_print_host_address (const void *addr, struct ui_file *stream); 528 529 extern const char *host_address_to_string (const void *addr); 530 531 /* Convert CORE_ADDR to string in platform-specific manner. 532 This is usually formatted similar to 0x%lx. */ 533 extern const char *paddress (struct gdbarch *gdbarch, CORE_ADDR addr); 534 535 /* Return a string representation in hexadecimal notation of ADDRESS, 536 which is suitable for printing. */ 537 538 extern const char *print_core_address (struct gdbarch *gdbarch, 539 CORE_ADDR address); 540 541 /* %d for LONGEST */ 542 extern char *plongest (LONGEST l); 543 /* %u for ULONGEST */ 544 extern char *pulongest (ULONGEST l); 545 546 extern char *phex (ULONGEST l, int sizeof_l); 547 extern char *phex_nz (ULONGEST l, int sizeof_l); 548 extern char *int_string (LONGEST, int, int, int, int); 549 550 /* Convert a CORE_ADDR into a HEX string with leading zeros. 551 The output from core_addr_to_string() can be passed direct to 552 string_to_core_addr(). */ 553 extern const char *core_addr_to_string (const CORE_ADDR addr); 554 extern const char *core_addr_to_string_nz (const CORE_ADDR addr); 555 extern CORE_ADDR string_to_core_addr (const char *my_string); 556 557 /* Return a string that contains a number formatted as a hex 558 string. */ 559 extern char *hex_string (LONGEST); 560 extern char *hex_string_custom (LONGEST, int); 561 562 extern void fprintf_symbol_filtered (struct ui_file *, char *, 563 enum language, int); 564 565 extern void perror_with_name (const char *) ATTRIBUTE_NORETURN; 566 567 extern void print_sys_errmsg (const char *, int); 568 569 /* From regex.c or libc. BSD 4.4 declares this with the argument type as 570 "const char *" in unistd.h, so we can't declare the argument 571 as "char *". */ 572 573 extern char *re_comp (const char *); 574 575 /* From symfile.c */ 576 577 extern void symbol_file_command (char *, int); 578 579 /* Remote targets may wish to use this as their load function. */ 580 extern void generic_load (char *name, int from_tty); 581 582 /* Report on STREAM the performance of memory transfer operation, 583 such as 'load'. 584 DATA_COUNT is the number of bytes transferred. 585 WRITE_COUNT is the number of separate write operations, or 0, 586 if that information is not available. 587 START_TIME is the time at which an operation was started. 588 END_TIME is the time at which an operation ended. */ 589 struct timeval; 590 extern void print_transfer_performance (struct ui_file *stream, 591 unsigned long data_count, 592 unsigned long write_count, 593 const struct timeval *start_time, 594 const struct timeval *end_time); 595 596 /* From top.c */ 597 598 typedef void initialize_file_ftype (void); 599 600 extern char *skip_quoted (char *); 601 602 extern char *gdb_readline (char *); 603 604 extern char *gdb_readline_wrapper (char *); 605 606 extern char *command_line_input (char *, int, char *); 607 608 extern void print_prompt (void); 609 610 extern int input_from_terminal_p (void); 611 612 extern int info_verbose; 613 614 /* From printcmd.c */ 615 616 extern void set_next_address (struct gdbarch *, CORE_ADDR); 617 618 extern void print_address_symbolic (struct gdbarch *, CORE_ADDR, 619 struct ui_file *, int, char *); 620 621 extern int build_address_symbolic (struct gdbarch *, 622 CORE_ADDR addr, 623 int do_demangle, 624 char **name, 625 int *offset, 626 char **filename, 627 int *line, 628 int *unmapped); 629 630 extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *); 631 extern const char *pc_prefix (CORE_ADDR); 632 633 /* From source.c */ 634 635 #define OPF_TRY_CWD_FIRST 0x01 636 #define OPF_SEARCH_IN_PATH 0x02 637 638 extern int openp (const char *, int, const char *, int, char **); 639 640 extern int source_full_path_of (const char *, char **); 641 642 extern void mod_path (char *, char **); 643 644 extern void add_path (char *, char **, int); 645 646 extern void directory_command (char *, int); 647 648 extern void directory_switch (char *, int); 649 650 extern char *source_path; 651 652 extern void init_source_path (void); 653 654 /* From exec.c */ 655 656 typedef int (*find_memory_region_ftype) (CORE_ADDR addr, unsigned long size, 657 int read, int write, int exec, 658 void *data); 659 660 /* Take over the 'find_mapped_memory' vector from exec.c. */ 661 extern void exec_set_find_memory_regions 662 (int (*func) (find_memory_region_ftype func, void *data)); 663 664 /* Possible lvalue types. Like enum language, this should be in 665 value.h, but needs to be here for the same reason. */ 666 667 enum lval_type 668 { 669 /* Not an lval. */ 670 not_lval, 671 /* In memory. */ 672 lval_memory, 673 /* In a register. Registers are relative to a frame. */ 674 lval_register, 675 /* In a gdb internal variable. */ 676 lval_internalvar, 677 /* Part of a gdb internal variable (structure field). */ 678 lval_internalvar_component, 679 /* Value's bits are fetched and stored using functions provided by 680 its creator. */ 681 lval_computed 682 }; 683 684 /* Control types for commands */ 685 686 enum misc_command_type 687 { 688 ok_command, 689 end_command, 690 else_command, 691 nop_command 692 }; 693 694 enum command_control_type 695 { 696 simple_control, 697 break_control, 698 continue_control, 699 while_control, 700 if_control, 701 commands_control, 702 python_control, 703 while_stepping_control, 704 invalid_control 705 }; 706 707 /* Structure for saved commands lines 708 (for breakpoints, defined commands, etc). */ 709 710 struct command_line 711 { 712 struct command_line *next; 713 char *line; 714 enum command_control_type control_type; 715 /* The number of elements in body_list. */ 716 int body_count; 717 /* For composite commands, the nested lists of commands. For 718 example, for "if" command this will contain the then branch and 719 the else branch, if that is available. */ 720 struct command_line **body_list; 721 }; 722 723 extern struct command_line *read_command_lines (char *, int, int, 724 void (*)(char *, void *), 725 void *); 726 extern struct command_line *read_command_lines_1 (char * (*) (void), int, 727 void (*)(char *, void *), 728 void *); 729 730 extern void free_command_lines (struct command_line **); 731 732 /* To continue the execution commands when running gdb asynchronously. 733 A continuation structure contains a pointer to a function to be called 734 to finish the command, once the target has stopped. Such mechanism is 735 used by the finish and until commands, and in the remote protocol 736 when opening an extended-remote connection. */ 737 738 struct continuation; 739 struct thread_info; 740 struct inferior; 741 742 /* From utils.c */ 743 744 /* Thread specific continuations. */ 745 746 extern void add_continuation (struct thread_info *, 747 void (*)(void *), void *, 748 void (*)(void *)); 749 extern void do_all_continuations (void); 750 extern void do_all_continuations_thread (struct thread_info *); 751 extern void discard_all_continuations (void); 752 extern void discard_all_continuations_thread (struct thread_info *); 753 754 extern void add_intermediate_continuation (struct thread_info *, 755 void (*)(void *), void *, 756 void (*)(void *)); 757 extern void do_all_intermediate_continuations (void); 758 extern void do_all_intermediate_continuations_thread (struct thread_info *); 759 extern void discard_all_intermediate_continuations (void); 760 extern void discard_all_intermediate_continuations_thread (struct thread_info *); 761 762 /* Inferior specific (any thread) continuations. */ 763 764 extern void add_inferior_continuation (void (*) (void *), 765 void *, 766 void (*) (void *)); 767 extern void do_all_inferior_continuations (void); 768 extern void discard_all_inferior_continuations (struct inferior *inf); 769 770 /* String containing the current directory (what getwd would return). */ 771 772 extern char *current_directory; 773 774 /* Default radixes for input and output. Only some values supported. */ 775 extern unsigned input_radix; 776 extern unsigned output_radix; 777 778 /* Possibilities for prettyprint parameters to routines which print 779 things. Like enum language, this should be in value.h, but needs 780 to be here for the same reason. FIXME: If we can eliminate this 781 as an arg to LA_VAL_PRINT, then we can probably move it back to 782 value.h. */ 783 784 enum val_prettyprint 785 { 786 Val_no_prettyprint = 0, 787 Val_prettyprint, 788 /* Use the default setting which the user has specified. */ 789 Val_pretty_default 790 }; 791 792 /* The ptid struct is a collection of the various "ids" necessary 793 for identifying the inferior. This consists of the process id 794 (pid), thread id (tid), and other fields necessary for uniquely 795 identifying the inferior process/thread being debugged. When 796 manipulating ptids, the constructors, accessors, and predicate 797 declared in inferior.h should be used. These are as follows: 798 799 ptid_build - Make a new ptid from a pid, lwp, and tid. 800 pid_to_ptid - Make a new ptid from just a pid. 801 ptid_get_pid - Fetch the pid component of a ptid. 802 ptid_get_lwp - Fetch the lwp component of a ptid. 803 ptid_get_tid - Fetch the tid component of a ptid. 804 ptid_equal - Test to see if two ptids are equal. 805 ptid_is_pid - Test to see if this ptid represents a process id. 806 807 Please do NOT access the struct ptid members directly (except, of 808 course, in the implementation of the above ptid manipulation 809 functions). */ 810 811 struct ptid 812 { 813 /* Process id */ 814 int pid; 815 816 /* Lightweight process id */ 817 long lwp; 818 819 /* Thread id */ 820 long tid; 821 }; 822 823 typedef struct ptid ptid_t; 824 825 826 827 /* Optional native machine support. Non-native (and possibly pure 828 multi-arch) targets do not need a "nm.h" file. This will be a 829 symlink to one of the nm-*.h files, built by the `configure' 830 script. */ 831 832 #ifdef GDB_NM_FILE 833 #include "nm.h" 834 #endif 835 836 /* Assume that fopen accepts the letter "b" in the mode string. 837 It is demanded by ISO C9X, and should be supported on all 838 platforms that claim to have a standard-conforming C library. On 839 true POSIX systems it will be ignored and have no effect. There 840 may still be systems without a standard-conforming C library where 841 an ISO C9X compiler (GCC) is available. Known examples are SunOS 842 4.x and 4.3BSD. This assumption means these systems are no longer 843 supported. */ 844 #ifndef FOPEN_RB 845 # include "fopen-bin.h" 846 #endif 847 848 /* Defaults for system-wide constants (if not defined by xm.h, we fake it). 849 FIXME: Assumes 2's complement arithmetic. */ 850 851 #if !defined (UINT_MAX) 852 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */ 853 #endif 854 855 #if !defined (INT_MAX) 856 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */ 857 #endif 858 859 #if !defined (INT_MIN) 860 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */ 861 #endif 862 863 #if !defined (ULONG_MAX) 864 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */ 865 #endif 866 867 #if !defined (LONG_MAX) 868 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */ 869 #endif 870 871 #if !defined (ULONGEST_MAX) 872 #define ULONGEST_MAX (~(ULONGEST)0) /* 0xFFFFFFFFFFFFFFFF for 64-bits */ 873 #endif 874 875 #if !defined (LONGEST_MAX) /* 0x7FFFFFFFFFFFFFFF for 64-bits */ 876 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1)) 877 #endif 878 879 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of 880 arguments to a function, number in a value history, register number, etc.) 881 where the value must not be larger than can fit in an int. */ 882 883 extern int longest_to_int (LONGEST); 884 885 /* Assorted functions we can declare, now that const and volatile are 886 defined. */ 887 888 extern char *savestring (const char *, size_t); 889 890 /* xmalloc(), xrealloc() and xcalloc() have already been declared in 891 "libiberty.h". */ 892 extern void xfree (void *); 893 894 /* Like xmalloc, but zero the memory. */ 895 extern void *xzalloc (size_t); 896 897 /* Utility macros to allocate typed memory. Avoids errors like: 898 struct foo *foo = xmalloc (sizeof struct bar); and memset (foo, 899 sizeof (struct foo), 0). */ 900 #define XZALLOC(TYPE) ((TYPE*) xzalloc (sizeof (TYPE))) 901 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE))) 902 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE))) 903 904 /* Like asprintf/vasprintf but get an internal_error if the call 905 fails. */ 906 extern void xasprintf (char **ret, const char *format, ...) 907 ATTRIBUTE_PRINTF (2, 3); 908 extern void xvasprintf (char **ret, const char *format, va_list ap) 909 ATTRIBUTE_PRINTF (2, 0); 910 911 /* Like asprintf and vasprintf, but return the string, throw an error 912 if no memory. */ 913 extern char *xstrprintf (const char *format, ...) ATTRIBUTE_PRINTF (1, 2); 914 extern char *xstrvprintf (const char *format, va_list ap) 915 ATTRIBUTE_PRINTF (1, 0); 916 917 /* Like snprintf, but throw an error if the output buffer is too small. */ 918 extern int xsnprintf (char *str, size_t size, const char *format, ...) 919 ATTRIBUTE_PRINTF (3, 4); 920 921 extern int parse_escape (struct gdbarch *, char **); 922 923 /* Message to be printed before the error message, when an error occurs. */ 924 925 extern char *error_pre_print; 926 927 /* Message to be printed before the error message, when an error occurs. */ 928 929 extern char *quit_pre_print; 930 931 /* Message to be printed before the warning message, when a warning occurs. */ 932 933 extern char *warning_pre_print; 934 935 extern void verror (const char *fmt, va_list ap) 936 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 0); 937 938 extern void error (const char *fmt, ...) 939 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2); 940 941 extern void error_stream (struct ui_file *) ATTRIBUTE_NORETURN; 942 943 extern void vfatal (const char *fmt, va_list ap) 944 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 0); 945 946 extern void fatal (const char *fmt, ...) 947 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2); 948 949 extern void internal_verror (const char *file, int line, const char *, 950 va_list ap) 951 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (3, 0); 952 953 extern void internal_error (const char *file, int line, const char *, ...) 954 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (3, 4); 955 956 extern void internal_vwarning (const char *file, int line, 957 const char *, va_list ap) 958 ATTRIBUTE_PRINTF (3, 0); 959 960 extern void internal_warning (const char *file, int line, 961 const char *, ...) ATTRIBUTE_PRINTF (3, 4); 962 963 extern void nomem (long) ATTRIBUTE_NORETURN; 964 965 extern void warning (const char *, ...) ATTRIBUTE_PRINTF (1, 2); 966 967 extern void vwarning (const char *, va_list args) ATTRIBUTE_PRINTF (1, 0); 968 969 /* List of known OS ABIs. If you change this, make sure to update the 970 table in osabi.c. */ 971 enum gdb_osabi 972 { 973 GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info. */ 974 975 GDB_OSABI_UNKNOWN = 0, /* keep this zero */ 976 977 GDB_OSABI_SVR4, 978 GDB_OSABI_HURD, 979 GDB_OSABI_SOLARIS, 980 GDB_OSABI_OSF1, 981 GDB_OSABI_LINUX, 982 GDB_OSABI_FREEBSD_AOUT, 983 GDB_OSABI_FREEBSD_ELF, 984 GDB_OSABI_NETBSD_AOUT, 985 GDB_OSABI_NETBSD_ELF, 986 GDB_OSABI_OPENBSD_ELF, 987 GDB_OSABI_DRAGONFLY, 988 GDB_OSABI_WINCE, 989 GDB_OSABI_GO32, 990 GDB_OSABI_IRIX, 991 GDB_OSABI_INTERIX, 992 GDB_OSABI_HPUX_ELF, 993 GDB_OSABI_HPUX_SOM, 994 GDB_OSABI_QNXNTO, 995 GDB_OSABI_CYGWIN, 996 GDB_OSABI_AIX, 997 GDB_OSABI_DICOS, 998 GDB_OSABI_DARWIN, 999 GDB_OSABI_SYMBIAN, 1000 1001 GDB_OSABI_INVALID /* keep this last */ 1002 }; 1003 1004 /* Global functions from other, non-gdb GNU thingies. 1005 Libiberty thingies are no longer declared here. We include libiberty.h 1006 above, instead. */ 1007 1008 /* From other system libraries */ 1009 1010 #ifdef HAVE_STDDEF_H 1011 #include <stddef.h> 1012 #endif 1013 1014 #ifdef HAVE_STDLIB_H 1015 #include <stdlib.h> 1016 #endif 1017 #ifndef min 1018 #define min(a, b) ((a) < (b) ? (a) : (b)) 1019 #endif 1020 #ifndef max 1021 #define max(a, b) ((a) > (b) ? (a) : (b)) 1022 #endif 1023 1024 1025 #ifndef atof 1026 extern double atof (const char *); /* X3.159-1989 4.10.1.1 */ 1027 #endif 1028 1029 /* Various possibilities for alloca. */ 1030 #ifndef alloca 1031 #ifdef __GNUC__ 1032 #define alloca __builtin_alloca 1033 #else /* Not GNU C */ 1034 #ifdef HAVE_ALLOCA_H 1035 #include <alloca.h> 1036 #else 1037 #ifdef _AIX 1038 #pragma alloca 1039 #else 1040 1041 /* We need to be careful not to declare this in a way which conflicts with 1042 bison. Bison never declares it as char *, but under various circumstances 1043 (like __hpux) we need to use void *. */ 1044 extern void *alloca (); 1045 #endif /* Not _AIX */ 1046 #endif /* Not HAVE_ALLOCA_H */ 1047 #endif /* Not GNU C */ 1048 #endif /* alloca not defined */ 1049 1050 /* Dynamic target-system-dependent parameters for GDB. */ 1051 #include "gdbarch.h" 1052 1053 /* Maximum size of a register. Something small, but large enough for 1054 all known ISAs. If it turns out to be too small, make it bigger. */ 1055 1056 enum { MAX_REGISTER_SIZE = 64 }; 1057 1058 /* Static target-system-dependent parameters for GDB. */ 1059 1060 /* Number of bits in a char or unsigned char for the target machine. 1061 Just like CHAR_BIT in <limits.h> but describes the target machine. */ 1062 #if !defined (TARGET_CHAR_BIT) 1063 #define TARGET_CHAR_BIT 8 1064 #endif 1065 1066 /* If we picked up a copy of CHAR_BIT from a configuration file 1067 (which may get it by including <limits.h>) then use it to set 1068 the number of bits in a host char. If not, use the same size 1069 as the target. */ 1070 1071 #if defined (CHAR_BIT) 1072 #define HOST_CHAR_BIT CHAR_BIT 1073 #else 1074 #define HOST_CHAR_BIT TARGET_CHAR_BIT 1075 #endif 1076 1077 /* In findvar.c. */ 1078 1079 extern LONGEST extract_signed_integer (const gdb_byte *, int, 1080 enum bfd_endian); 1081 1082 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int, 1083 enum bfd_endian); 1084 1085 extern int extract_long_unsigned_integer (const gdb_byte *, int, 1086 enum bfd_endian, LONGEST *); 1087 1088 extern CORE_ADDR extract_typed_address (const gdb_byte *buf, 1089 struct type *type); 1090 1091 extern void store_signed_integer (gdb_byte *, int, 1092 enum bfd_endian, LONGEST); 1093 1094 extern void store_unsigned_integer (gdb_byte *, int, 1095 enum bfd_endian, ULONGEST); 1096 1097 extern void store_typed_address (gdb_byte *buf, struct type *type, 1098 CORE_ADDR addr); 1099 1100 1101 /* From valops.c */ 1102 1103 extern int watchdog; 1104 1105 /* Hooks for alternate command interfaces. */ 1106 1107 /* The name of the interpreter if specified on the command line. */ 1108 extern char *interpreter_p; 1109 1110 /* If a given interpreter matches INTERPRETER_P then it should update 1111 deprecated_command_loop_hook and deprecated_init_ui_hook with the 1112 per-interpreter implementation. */ 1113 /* FIXME: deprecated_command_loop_hook and deprecated_init_ui_hook 1114 should be moved here. */ 1115 1116 struct target_waitstatus; 1117 struct cmd_list_element; 1118 1119 extern void (*deprecated_pre_add_symbol_hook) (const char *); 1120 extern void (*deprecated_post_add_symbol_hook) (void); 1121 extern void (*selected_frame_level_changed_hook) (int); 1122 extern int (*deprecated_ui_loop_hook) (int signo); 1123 extern void (*deprecated_init_ui_hook) (char *argv0); 1124 extern void (*deprecated_command_loop_hook) (void); 1125 extern void (*deprecated_show_load_progress) (const char *section, 1126 unsigned long section_sent, 1127 unsigned long section_size, 1128 unsigned long total_sent, 1129 unsigned long total_size); 1130 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, 1131 int line, 1132 int stopline, 1133 int noerror); 1134 extern int (*deprecated_query_hook) (const char *, va_list) 1135 ATTRIBUTE_FPTR_PRINTF(1,0); 1136 extern void (*deprecated_warning_hook) (const char *, va_list) 1137 ATTRIBUTE_FPTR_PRINTF(1,0); 1138 extern void (*deprecated_flush_hook) (struct ui_file * stream); 1139 extern void (*deprecated_interactive_hook) (void); 1140 extern void (*deprecated_readline_begin_hook) (char *, ...) 1141 ATTRIBUTE_FPTR_PRINTF_1; 1142 extern char *(*deprecated_readline_hook) (char *); 1143 extern void (*deprecated_readline_end_hook) (void); 1144 extern void (*deprecated_register_changed_hook) (int regno); 1145 extern void (*deprecated_context_hook) (int); 1146 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, 1147 struct target_waitstatus *status, 1148 int options); 1149 1150 extern void (*deprecated_attach_hook) (void); 1151 extern void (*deprecated_detach_hook) (void); 1152 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c, 1153 char *cmd, int from_tty); 1154 1155 extern void (*deprecated_set_hook) (struct cmd_list_element * c); 1156 1157 extern void (*deprecated_error_begin_hook) (void); 1158 1159 extern int (*deprecated_ui_load_progress_hook) (const char *section, 1160 unsigned long num); 1161 1162 1163 /* Inhibit window interface if non-zero. */ 1164 1165 extern int use_windows; 1166 1167 /* Definitions of filename-related things. */ 1168 1169 /* Host specific things. */ 1170 1171 #ifdef __MSDOS__ 1172 # define CANT_FORK 1173 # define GLOBAL_CURDIR 1174 # define DIRNAME_SEPARATOR ';' 1175 #endif 1176 1177 #if !defined (__CYGWIN__) && defined (_WIN32) 1178 # define DIRNAME_SEPARATOR ';' 1179 #endif 1180 1181 #ifndef DIRNAME_SEPARATOR 1182 #define DIRNAME_SEPARATOR ':' 1183 #endif 1184 1185 #ifndef SLASH_STRING 1186 #define SLASH_STRING "/" 1187 #endif 1188 1189 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID. 1190 The name ``TIDGET'' is a historical accident. Many uses of TIDGET 1191 in the code actually refer to a lightweight process id, i.e, 1192 something that can be considered a process id in its own right for 1193 certain purposes. */ 1194 1195 #ifndef PIDGET 1196 #define PIDGET(PTID) (ptid_get_pid (PTID)) 1197 #define TIDGET(PTID) (ptid_get_lwp (PTID)) 1198 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0) 1199 #endif 1200 1201 /* Define well known filenos if the system does not define them. */ 1202 #ifndef STDIN_FILENO 1203 #define STDIN_FILENO 0 1204 #endif 1205 #ifndef STDOUT_FILENO 1206 #define STDOUT_FILENO 1 1207 #endif 1208 #ifndef STDERR_FILENO 1209 #define STDERR_FILENO 2 1210 #endif 1211 1212 /* If this definition isn't overridden by the header files, assume 1213 that isatty and fileno exist on this system. */ 1214 #ifndef ISATTY 1215 #define ISATTY(FP) (isatty (fileno (FP))) 1216 #endif 1217 1218 /* Ensure that V is aligned to an N byte boundary (B's assumed to be a 1219 power of 2). Round up/down when necessary. Examples of correct 1220 use include: 1221 1222 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment 1223 write_memory (addr, value, len); 1224 addr += len; 1225 1226 and: 1227 1228 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned 1229 write_memory (sp, value, len); 1230 1231 Note that uses such as: 1232 1233 write_memory (addr, value, len); 1234 addr += align_up (len, 8); 1235 1236 and: 1237 1238 sp -= align_up (len, 8); 1239 write_memory (sp, value, len); 1240 1241 are typically not correct as they don't ensure that the address (SP 1242 or ADDR) is correctly aligned (relying on previous alignment to 1243 keep things right). This is also why the methods are called 1244 "align_..." instead of "round_..." as the latter reads better with 1245 this incorrect coding style. */ 1246 1247 extern ULONGEST align_up (ULONGEST v, int n); 1248 extern ULONGEST align_down (ULONGEST v, int n); 1249 1250 /* Allocation and deallocation functions for the libiberty hash table 1251 which use obstacks. */ 1252 void *hashtab_obstack_allocate (void *data, size_t size, size_t count); 1253 void dummy_obstack_deallocate (void *object, void *data); 1254 1255 /* From progspace.c */ 1256 1257 extern void initialize_progspace (void); 1258 extern void initialize_inferiors (void); 1259 1260 /* For DragonFly kgdb */ 1261 1262 extern int kernel_debugger; 1263 1264 #endif /* #ifndef DEFS_H */ 1265