1 /* *INDENT-OFF* */ /* ATTR_FORMAT confuses indent, avoid running it for now */ 2 /* Basic, host-specific, and target-specific definitions for GDB. 3 Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 4 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009 5 Free Software Foundation, Inc. 6 7 This file is part of GDB. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 21 22 #ifndef DEFS_H 23 #define DEFS_H 24 25 #include "config.h" /* Generated by configure. */ 26 27 #include <sys/types.h> 28 #include <stdio.h> 29 #include <errno.h> /* System call error return status. */ 30 #include <limits.h> 31 #include <stdint.h> 32 33 /* The libdecnumber library, on which GDB depends, includes a header file 34 called gstdint.h instead of relying directly on stdint.h. GDB, on the 35 other hand, includes stdint.h directly, relying on the fact that gnulib 36 generates a copy if the system doesn't provide one or if it is missing 37 some features. Unfortunately, gstdint.h and stdint.h cannot be included 38 at the same time, which may happen when we include a file from 39 libdecnumber. 40 41 The following macro definition effectively prevents the inclusion of 42 gstdint.h, as all the definitions it provides are guarded against 43 the GCC_GENERATED_STDINT_H macro. We already have gnulib/stdint.h 44 included, so it's ok to blank out gstdint.h. */ 45 #define GCC_GENERATED_STDINT_H 1 46 47 #ifdef HAVE_STDDEF_H 48 #include <stddef.h> 49 #endif 50 51 #ifdef HAVE_UNISTD_H 52 #include <unistd.h> 53 #endif 54 55 #include <fcntl.h> 56 57 /* First include ansidecl.h so we can use the various macro definitions 58 here and in all subsequent file inclusions. */ 59 60 #include "ansidecl.h" 61 62 #include "gdb_locale.h" 63 64 #include "gdb_wchar.h" 65 66 /* For ``enum target_signal''. */ 67 #include "gdb/signals.h" 68 69 /* Just in case they're not defined in stdio.h. */ 70 71 #ifndef SEEK_SET 72 #define SEEK_SET 0 73 #endif 74 #ifndef SEEK_CUR 75 #define SEEK_CUR 1 76 #endif 77 78 /* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms. 79 It is used as an access modifier in calls to open(), where it acts 80 similarly to the "b" character in fopen()'s MODE argument. On Posix 81 platforms it should be a no-op, so it is defined as 0 here. This 82 ensures that the symbol may be used freely elsewhere in gdb. */ 83 84 #ifndef O_BINARY 85 #define O_BINARY 0 86 #endif 87 88 #include <stdarg.h> /* For va_list. */ 89 90 #include "libiberty.h" 91 92 /* Rather than duplicate all the logic in BFD for figuring out what 93 types to use (which can be pretty complicated), symply define them 94 in terms of the corresponding type from BFD. */ 95 96 #include "bfd.h" 97 98 /* A byte from the program being debugged. */ 99 typedef bfd_byte gdb_byte; 100 101 /* An address in the program being debugged. Host byte order. */ 102 typedef bfd_vma CORE_ADDR; 103 104 /* The largest CORE_ADDR value. */ 105 #define CORE_ADDR_MAX (~ (CORE_ADDR) 0) 106 107 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */ 108 109 #ifndef LONGEST 110 111 #ifdef BFD64 112 113 #define LONGEST BFD_HOST_64_BIT 114 #define ULONGEST BFD_HOST_U_64_BIT 115 116 #else /* No BFD64 */ 117 118 #ifdef CC_HAS_LONG_LONG 119 #define LONGEST long long 120 #define ULONGEST unsigned long long 121 #else 122 #ifdef BFD_HOST_64_BIT 123 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long 124 (e.g. i386-windows) so try it. */ 125 #define LONGEST BFD_HOST_64_BIT 126 #define ULONGEST BFD_HOST_U_64_BIT 127 #else 128 #define LONGEST long 129 #define ULONGEST unsigned long 130 #endif 131 #endif 132 133 #endif /* No BFD64 */ 134 135 #endif /* ! LONGEST */ 136 137 #ifndef min 138 #define min(a, b) ((a) < (b) ? (a) : (b)) 139 #endif 140 #ifndef max 141 #define max(a, b) ((a) > (b) ? (a) : (b)) 142 #endif 143 144 /* Check if a character is one of the commonly used C++ marker characters. */ 145 extern int is_cplus_marker (int); 146 147 /* enable xdb commands if set */ 148 extern int xdb_commands; 149 150 /* enable dbx commands if set */ 151 extern int dbx_commands; 152 153 /* System root path, used to find libraries etc. */ 154 extern char *gdb_sysroot; 155 156 /* GDB datadir, used to store data files. */ 157 extern char *gdb_datadir; 158 159 /* Search path for separate debug files. */ 160 extern char *debug_file_directory; 161 162 extern int quit_flag; 163 extern int immediate_quit; 164 extern int sevenbit_strings; 165 166 extern void quit (void); 167 168 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance 169 benefits of having a ``QUIT'' macro rather than a function are 170 marginal. If the overhead of a QUIT function call is proving 171 significant then its calling frequency should probably be reduced 172 [kingdon]. A profile analyzing the current situtation is 173 needed. */ 174 175 #define QUIT { \ 176 if (quit_flag) quit (); \ 177 if (deprecated_interactive_hook) deprecated_interactive_hook (); \ 178 } 179 180 /* Languages represented in the symbol table and elsewhere. 181 This should probably be in language.h, but since enum's can't 182 be forward declared to satisfy opaque references before their 183 actual definition, needs to be here. */ 184 185 enum language 186 { 187 language_unknown, /* Language not known */ 188 language_auto, /* Placeholder for automatic setting */ 189 language_c, /* C */ 190 language_cplus, /* C++ */ 191 language_objc, /* Objective-C */ 192 language_java, /* Java */ 193 language_fortran, /* Fortran */ 194 language_m2, /* Modula-2 */ 195 language_asm, /* Assembly language */ 196 language_pascal, /* Pascal */ 197 language_ada, /* Ada */ 198 language_scm, /* Guile Scheme */ 199 language_minimal, /* All other languages, minimal support only */ 200 nr_languages 201 }; 202 203 enum precision_type 204 { 205 single_precision, 206 double_precision, 207 unspecified_precision 208 }; 209 210 /* A generic, not quite boolean, enumeration. */ 211 enum auto_boolean 212 { 213 AUTO_BOOLEAN_TRUE, 214 AUTO_BOOLEAN_FALSE, 215 AUTO_BOOLEAN_AUTO 216 }; 217 218 /* Potential ways that a function can return a value of a given type. */ 219 enum return_value_convention 220 { 221 /* Where the return value has been squeezed into one or more 222 registers. */ 223 RETURN_VALUE_REGISTER_CONVENTION, 224 /* Commonly known as the "struct return convention". The caller 225 passes an additional hidden first parameter to the caller. That 226 parameter contains the address at which the value being returned 227 should be stored. While typically, and historically, used for 228 large structs, this is convention is applied to values of many 229 different types. */ 230 RETURN_VALUE_STRUCT_CONVENTION, 231 /* Like the "struct return convention" above, but where the ABI 232 guarantees that the called function stores the address at which 233 the value being returned is stored in a well-defined location, 234 such as a register or memory slot in the stack frame. Don't use 235 this if the ABI doesn't explicitly guarantees this. */ 236 RETURN_VALUE_ABI_RETURNS_ADDRESS, 237 /* Like the "struct return convention" above, but where the ABI 238 guarantees that the address at which the value being returned is 239 stored will be available in a well-defined location, such as a 240 register or memory slot in the stack frame. Don't use this if 241 the ABI doesn't explicitly guarantees this. */ 242 RETURN_VALUE_ABI_PRESERVES_ADDRESS, 243 }; 244 245 /* the cleanup list records things that have to be undone 246 if an error happens (descriptors to be closed, memory to be freed, etc.) 247 Each link in the chain records a function to call and an 248 argument to give it. 249 250 Use make_cleanup to add an element to the cleanup chain. 251 Use do_cleanups to do all cleanup actions back to a given 252 point in the chain. Use discard_cleanups to remove cleanups 253 from the chain back to a given point, not doing them. 254 255 If the argument is pointer to allocated memory, then you need to 256 to additionally set the 'free_arg' member to a function that will 257 free that memory. This function will be called both when the cleanup 258 is executed and when it's discarded. */ 259 260 struct cleanup 261 { 262 struct cleanup *next; 263 void (*function) (void *); 264 void (*free_arg) (void *); 265 void *arg; 266 }; 267 268 269 /* The ability to declare that a function never returns is useful, but 270 not really required to compile GDB successfully, so the NORETURN and 271 ATTR_NORETURN macros normally expand into nothing. */ 272 273 /* If compiling with older versions of GCC, a function may be declared 274 "volatile" to indicate that it does not return. */ 275 276 #ifndef NORETURN 277 #if defined(__GNUC__) \ 278 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)) 279 #define NORETURN volatile 280 #else 281 #define NORETURN /* nothing */ 282 #endif 283 #endif 284 285 /* GCC 2.5 and later versions define a function attribute "noreturn", 286 which is the preferred way to declare that a function never returns. 287 However GCC 2.7 appears to be the first version in which this fully 288 works everywhere we use it. */ 289 290 #ifndef ATTR_NORETURN 291 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)) 292 #define ATTR_NORETURN __attribute__ ((noreturn)) 293 #else 294 #define ATTR_NORETURN /* nothing */ 295 #endif 296 #endif 297 298 #ifndef ATTR_FORMAT 299 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4)) 300 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y))) 301 #else 302 #define ATTR_FORMAT(type, x, y) /* nothing */ 303 #endif 304 #endif 305 306 /* Be conservative and use enum bitfields only with GCC. 307 This is copied from gcc 3.3.1, system.h. */ 308 309 #if defined(__GNUC__) && (__GNUC__ >= 2) 310 #define ENUM_BITFIELD(TYPE) enum TYPE 311 #else 312 #define ENUM_BITFIELD(TYPE) unsigned int 313 #endif 314 315 /* Needed for various prototypes */ 316 317 struct symtab; 318 struct breakpoint; 319 struct frame_info; 320 struct gdbarch; 321 322 /* From utils.c */ 323 324 extern void initialize_utils (void); 325 326 extern void notice_quit (void); 327 328 extern int strcmp_iw (const char *, const char *); 329 330 extern int strcmp_iw_ordered (const char *, const char *); 331 332 extern int streq (const char *, const char *); 333 334 extern int subset_compare (char *, char *); 335 336 extern char *safe_strerror (int); 337 338 #define ALL_CLEANUPS ((struct cleanup *)0) 339 340 extern void do_cleanups (struct cleanup *); 341 extern void do_final_cleanups (struct cleanup *); 342 343 extern void discard_cleanups (struct cleanup *); 344 extern void discard_final_cleanups (struct cleanup *); 345 extern void discard_my_cleanups (struct cleanup **, struct cleanup *); 346 347 /* NOTE: cagney/2000-03-04: This typedef is strictly for the 348 make_cleanup function declarations below. Do not use this typedef 349 as a cast when passing functions into the make_cleanup() code. 350 Instead either use a bounce function or add a wrapper function. 351 Calling a f(char*) function with f(void*) is non-portable. */ 352 typedef void (make_cleanup_ftype) (void *); 353 354 extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *); 355 356 extern struct cleanup *make_cleanup_dtor (make_cleanup_ftype *, void *, 357 void (*dtor) (void *)); 358 359 extern struct cleanup *make_cleanup_freeargv (char **); 360 361 struct ui_file; 362 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *); 363 364 struct section_addr_info; 365 extern struct cleanup *(make_cleanup_free_section_addr_info 366 (struct section_addr_info *)); 367 368 extern struct cleanup *make_cleanup_close (int fd); 369 370 extern struct cleanup *make_cleanup_fclose (FILE *file); 371 372 extern struct cleanup *make_cleanup_bfd_close (bfd *abfd); 373 374 struct obstack; 375 extern struct cleanup *make_cleanup_obstack_free (struct obstack *obstack); 376 377 extern struct cleanup *make_cleanup_restore_integer (int *variable); 378 379 extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *); 380 381 extern struct cleanup *make_my_cleanup (struct cleanup **, 382 make_cleanup_ftype *, void *); 383 384 extern struct cleanup *make_my_cleanup2 (struct cleanup **, 385 make_cleanup_ftype *, void *, 386 void (*free_arg) (void *)); 387 388 extern struct cleanup *save_cleanups (void); 389 extern struct cleanup *save_final_cleanups (void); 390 extern struct cleanup *save_my_cleanups (struct cleanup **); 391 392 extern void restore_cleanups (struct cleanup *); 393 extern void restore_final_cleanups (struct cleanup *); 394 extern void restore_my_cleanups (struct cleanup **, struct cleanup *); 395 396 extern void free_current_contents (void *); 397 398 extern void null_cleanup (void *); 399 400 extern int myread (int, char *, int); 401 402 extern int query (const char *, ...) ATTR_FORMAT (printf, 1, 2); 403 extern int nquery (const char *, ...) ATTR_FORMAT (printf, 1, 2); 404 extern int yquery (const char *, ...) ATTR_FORMAT (printf, 1, 2); 405 406 extern void init_page_info (void); 407 408 extern char *gdb_realpath (const char *); 409 extern char *xfullpath (const char *); 410 411 extern unsigned long gnu_debuglink_crc32 (unsigned long crc, 412 unsigned char *buf, size_t len); 413 414 ULONGEST strtoulst (const char *num, const char **trailer, int base); 415 416 char *ldirname (const char *filename); 417 418 char **gdb_buildargv (const char *); 419 420 /* From demangle.c */ 421 422 extern void set_demangling_style (char *); 423 424 425 /* Annotation stuff. */ 426 427 extern int annotation_level; /* in stack.c */ 428 429 extern void begin_line (void); 430 431 extern void wrap_here (char *); 432 433 extern void reinitialize_more_filter (void); 434 435 /* Normal results */ 436 extern struct ui_file *gdb_stdout; 437 /* Input stream */ 438 extern struct ui_file *gdb_stdin; 439 /* Serious error notifications */ 440 extern struct ui_file *gdb_stderr; 441 /* Log/debug/trace messages that should bypass normal stdout/stderr 442 filtering. For moment, always call this stream using 443 *_unfiltered. In the very near future that restriction shall be 444 removed - either call shall be unfiltered. (cagney 1999-06-13). */ 445 extern struct ui_file *gdb_stdlog; 446 /* Target output that should bypass normal stdout/stderr filtering. 447 For moment, always call this stream using *_unfiltered. In the 448 very near future that restriction shall be removed - either call 449 shall be unfiltered. (cagney 1999-07-02). */ 450 extern struct ui_file *gdb_stdtarg; 451 extern struct ui_file *gdb_stdtargerr; 452 extern struct ui_file *gdb_stdtargin; 453 454 #include "ui-file.h" 455 456 /* More generic printf like operations. Filtered versions may return 457 non-locally on error. */ 458 459 extern void fputs_filtered (const char *, struct ui_file *); 460 461 extern void fputs_unfiltered (const char *, struct ui_file *); 462 463 extern int fputc_filtered (int c, struct ui_file *); 464 465 extern int fputc_unfiltered (int c, struct ui_file *); 466 467 extern int putchar_filtered (int c); 468 469 extern int putchar_unfiltered (int c); 470 471 extern void puts_filtered (const char *); 472 473 extern void puts_unfiltered (const char *); 474 475 extern void puts_filtered_tabular (char *string, int width, int right); 476 477 extern void puts_debug (char *prefix, char *string, char *suffix); 478 479 extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf, 1, 0); 480 481 extern void vfprintf_filtered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0); 482 483 extern void fprintf_filtered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3); 484 485 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 3, 4); 486 487 extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf, 1, 2); 488 489 extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf, 2, 3); 490 491 extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf, 1, 0); 492 493 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0); 494 495 extern void fprintf_unfiltered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3); 496 497 extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf, 1, 2); 498 499 extern void print_spaces (int, struct ui_file *); 500 501 extern void print_spaces_filtered (int, struct ui_file *); 502 503 extern char *n_spaces (int); 504 505 extern void fputstr_filtered (const char *str, int quotr, struct ui_file * stream); 506 507 extern void fputstr_unfiltered (const char *str, int quotr, struct ui_file * stream); 508 509 extern void fputstrn_filtered (const char *str, int n, int quotr, struct ui_file * stream); 510 511 extern void fputstrn_unfiltered (const char *str, int n, int quotr, struct ui_file * stream); 512 513 /* Display the host ADDR on STREAM formatted as ``0x%x''. */ 514 extern void gdb_print_host_address (const void *addr, struct ui_file *stream); 515 516 extern const char *host_address_to_string (const void *addr); 517 518 /* Convert CORE_ADDR to string in platform-specific manner. 519 This is usually formatted similar to 0x%lx. */ 520 extern const char *paddress (struct gdbarch *gdbarch, CORE_ADDR addr); 521 522 /* %d for LONGEST */ 523 extern char *plongest (LONGEST l); 524 /* %u for ULONGEST */ 525 extern char *pulongest (ULONGEST l); 526 527 extern char *phex (ULONGEST l, int sizeof_l); 528 extern char *phex_nz (ULONGEST l, int sizeof_l); 529 extern char *int_string (LONGEST, int, int, int, int); 530 531 /* Convert a CORE_ADDR into a HEX string with leading zeros. 532 The output from core_addr_to_string() can be passed direct to 533 string_to_core_addr(). */ 534 extern const char *core_addr_to_string (const CORE_ADDR addr); 535 extern const char *core_addr_to_string_nz (const CORE_ADDR addr); 536 extern CORE_ADDR string_to_core_addr (const char *my_string); 537 538 /* Return a string that contains a number formatted as a hex 539 string. */ 540 extern char *hex_string (LONGEST); 541 extern char *hex_string_custom (LONGEST, int); 542 543 extern void fprintf_symbol_filtered (struct ui_file *, char *, 544 enum language, int); 545 546 extern NORETURN void perror_with_name (const char *) ATTR_NORETURN; 547 548 extern void print_sys_errmsg (const char *, int); 549 550 /* From regex.c or libc. BSD 4.4 declares this with the argument type as 551 "const char *" in unistd.h, so we can't declare the argument 552 as "char *". */ 553 554 extern char *re_comp (const char *); 555 556 /* From symfile.c */ 557 558 extern void symbol_file_command (char *, int); 559 560 /* Remote targets may wish to use this as their load function. */ 561 extern void generic_load (char *name, int from_tty); 562 563 /* Report on STREAM the performance of memory transfer operation, 564 such as 'load'. 565 DATA_COUNT is the number of bytes transferred. 566 WRITE_COUNT is the number of separate write operations, or 0, 567 if that information is not available. 568 START_TIME is the time at which an operation was started. 569 END_TIME is the time at which an operation ended. */ 570 struct timeval; 571 extern void print_transfer_performance (struct ui_file *stream, 572 unsigned long data_count, 573 unsigned long write_count, 574 const struct timeval *start_time, 575 const struct timeval *end_time); 576 577 /* From top.c */ 578 579 typedef void initialize_file_ftype (void); 580 581 extern char *skip_quoted (char *); 582 583 extern char *gdb_readline (char *); 584 585 extern char *gdb_readline_wrapper (char *); 586 587 extern char *command_line_input (char *, int, char *); 588 589 extern void print_prompt (void); 590 591 extern int input_from_terminal_p (void); 592 593 extern int info_verbose; 594 595 /* From printcmd.c */ 596 597 extern void set_next_address (struct gdbarch *, CORE_ADDR); 598 599 extern void print_address_symbolic (CORE_ADDR, struct ui_file *, int, 600 char *); 601 602 extern int build_address_symbolic (CORE_ADDR addr, 603 int do_demangle, 604 char **name, 605 int *offset, 606 char **filename, 607 int *line, 608 int *unmapped); 609 610 extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *); 611 612 /* From source.c */ 613 614 #define OPF_TRY_CWD_FIRST 0x01 615 #define OPF_SEARCH_IN_PATH 0x02 616 617 extern int openp (const char *, int, const char *, int, char **); 618 619 extern int source_full_path_of (const char *, char **); 620 621 extern void mod_path (char *, char **); 622 623 extern void add_path (char *, char **, int); 624 625 extern void directory_command (char *, int); 626 627 extern void directory_switch (char *, int); 628 629 extern char *source_path; 630 631 extern void init_source_path (void); 632 633 /* From exec.c */ 634 635 /* Take over the 'find_mapped_memory' vector from exec.c. */ 636 extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR, 637 unsigned long, 638 int, int, int, 639 void *), 640 void *)); 641 642 /* Possible lvalue types. Like enum language, this should be in 643 value.h, but needs to be here for the same reason. */ 644 645 enum lval_type 646 { 647 /* Not an lval. */ 648 not_lval, 649 /* In memory. */ 650 lval_memory, 651 /* In a register. Registers are relative to a frame. */ 652 lval_register, 653 /* In a gdb internal variable. */ 654 lval_internalvar, 655 /* Part of a gdb internal variable (structure field). */ 656 lval_internalvar_component, 657 /* Value's bits are fetched and stored using functions provided by 658 its creator. */ 659 lval_computed 660 }; 661 662 /* Control types for commands */ 663 664 enum misc_command_type 665 { 666 ok_command, 667 end_command, 668 else_command, 669 nop_command 670 }; 671 672 enum command_control_type 673 { 674 simple_control, 675 break_control, 676 continue_control, 677 while_control, 678 if_control, 679 commands_control, 680 python_control, 681 invalid_control 682 }; 683 684 /* Structure for saved commands lines 685 (for breakpoints, defined commands, etc). */ 686 687 struct command_line 688 { 689 struct command_line *next; 690 char *line; 691 enum command_control_type control_type; 692 int body_count; 693 struct command_line **body_list; 694 }; 695 696 extern struct command_line *read_command_lines (char *, int, int); 697 extern struct command_line *read_command_lines_1 (char * (*) (), int); 698 699 extern void free_command_lines (struct command_line **); 700 701 /* To continue the execution commands when running gdb asynchronously. 702 A continuation structure contains a pointer to a function to be called 703 to finish the command, once the target has stopped. Such mechanism is 704 used by the finish and until commands, and in the remote protocol 705 when opening an extended-remote connection. */ 706 707 struct continuation; 708 struct thread_info; 709 struct inferior; 710 711 /* From utils.c */ 712 713 /* Thread specific continuations. */ 714 715 extern void add_continuation (struct thread_info *, 716 void (*)(void *), void *, 717 void (*)(void *)); 718 extern void do_all_continuations (void); 719 extern void do_all_continuations_thread (struct thread_info *); 720 extern void discard_all_continuations (void); 721 extern void discard_all_continuations_thread (struct thread_info *); 722 723 extern void add_intermediate_continuation (struct thread_info *, 724 void (*)(void *), void *, 725 void (*)(void *)); 726 extern void do_all_intermediate_continuations (void); 727 extern void do_all_intermediate_continuations_thread (struct thread_info *); 728 extern void discard_all_intermediate_continuations (void); 729 extern void discard_all_intermediate_continuations_thread (struct thread_info *); 730 731 /* Inferior specific (any thread) continuations. */ 732 733 extern void add_inferior_continuation (void (*) (void *), 734 void *, 735 void (*) (void *)); 736 extern void do_all_inferior_continuations (void); 737 extern void discard_all_inferior_continuations (struct inferior *inf); 738 739 /* String containing the current directory (what getwd would return). */ 740 741 extern char *current_directory; 742 743 /* Default radixes for input and output. Only some values supported. */ 744 extern unsigned input_radix; 745 extern unsigned output_radix; 746 747 /* Possibilities for prettyprint parameters to routines which print 748 things. Like enum language, this should be in value.h, but needs 749 to be here for the same reason. FIXME: If we can eliminate this 750 as an arg to LA_VAL_PRINT, then we can probably move it back to 751 value.h. */ 752 753 enum val_prettyprint 754 { 755 Val_no_prettyprint = 0, 756 Val_prettyprint, 757 /* Use the default setting which the user has specified. */ 758 Val_pretty_default 759 }; 760 761 /* The ptid struct is a collection of the various "ids" necessary 762 for identifying the inferior. This consists of the process id 763 (pid), thread id (tid), and other fields necessary for uniquely 764 identifying the inferior process/thread being debugged. When 765 manipulating ptids, the constructors, accessors, and predicate 766 declared in inferior.h should be used. These are as follows: 767 768 ptid_build - Make a new ptid from a pid, lwp, and tid. 769 pid_to_ptid - Make a new ptid from just a pid. 770 ptid_get_pid - Fetch the pid component of a ptid. 771 ptid_get_lwp - Fetch the lwp component of a ptid. 772 ptid_get_tid - Fetch the tid component of a ptid. 773 ptid_equal - Test to see if two ptids are equal. 774 ptid_is_pid - Test to see if this ptid represents a process id. 775 776 Please do NOT access the struct ptid members directly (except, of 777 course, in the implementation of the above ptid manipulation 778 functions). */ 779 780 struct ptid 781 { 782 /* Process id */ 783 int pid; 784 785 /* Lightweight process id */ 786 long lwp; 787 788 /* Thread id */ 789 long tid; 790 }; 791 792 typedef struct ptid ptid_t; 793 794 795 796 /* Optional native machine support. Non-native (and possibly pure 797 multi-arch) targets do not need a "nm.h" file. This will be a 798 symlink to one of the nm-*.h files, built by the `configure' 799 script. */ 800 801 #ifdef GDB_NM_FILE 802 #include "nm.h" 803 #endif 804 805 /* Assume that fopen accepts the letter "b" in the mode string. 806 It is demanded by ISO C9X, and should be supported on all 807 platforms that claim to have a standard-conforming C library. On 808 true POSIX systems it will be ignored and have no effect. There 809 may still be systems without a standard-conforming C library where 810 an ISO C9X compiler (GCC) is available. Known examples are SunOS 811 4.x and 4.3BSD. This assumption means these systems are no longer 812 supported. */ 813 #ifndef FOPEN_RB 814 # include "fopen-bin.h" 815 #endif 816 817 /* Defaults for system-wide constants (if not defined by xm.h, we fake it). 818 FIXME: Assumes 2's complement arithmetic */ 819 820 #if !defined (UINT_MAX) 821 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */ 822 #endif 823 824 #if !defined (INT_MAX) 825 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */ 826 #endif 827 828 #if !defined (INT_MIN) 829 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */ 830 #endif 831 832 #if !defined (ULONG_MAX) 833 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */ 834 #endif 835 836 #if !defined (LONG_MAX) 837 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */ 838 #endif 839 840 #if !defined (ULONGEST_MAX) 841 #define ULONGEST_MAX (~(ULONGEST)0) /* 0xFFFFFFFFFFFFFFFF for 64-bits */ 842 #endif 843 844 #if !defined (LONGEST_MAX) /* 0x7FFFFFFFFFFFFFFF for 64-bits */ 845 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1)) 846 #endif 847 848 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of 849 arguments to a function, number in a value history, register number, etc.) 850 where the value must not be larger than can fit in an int. */ 851 852 extern int longest_to_int (LONGEST); 853 854 /* Assorted functions we can declare, now that const and volatile are 855 defined. */ 856 857 extern char *savestring (const char *, size_t); 858 859 /* xmalloc(), xrealloc() and xcalloc() have already been declared in 860 "libiberty.h". */ 861 extern void xfree (void *); 862 863 /* Like xmalloc, but zero the memory. */ 864 extern void *xzalloc (size_t); 865 866 /* Utility macros to allocate typed memory. Avoids errors like: 867 struct foo *foo = xmalloc (sizeof struct bar); and memset (foo, 868 sizeof (struct foo), 0). */ 869 #define XZALLOC(TYPE) ((TYPE*) xzalloc (sizeof (TYPE))) 870 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE))) 871 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE))) 872 873 /* Like asprintf/vasprintf but get an internal_error if the call 874 fails. */ 875 extern void xasprintf (char **ret, const char *format, ...) ATTR_FORMAT (printf, 2, 3); 876 extern void xvasprintf (char **ret, const char *format, va_list ap) 877 ATTR_FORMAT (printf, 2, 0); 878 879 /* Like asprintf and vasprintf, but return the string, throw an error 880 if no memory. */ 881 extern char *xstrprintf (const char *format, ...) ATTR_FORMAT (printf, 1, 2); 882 extern char *xstrvprintf (const char *format, va_list ap) 883 ATTR_FORMAT (printf, 1, 0); 884 885 /* Like snprintf, but throw an error if the output buffer is too small. */ 886 extern int xsnprintf (char *str, size_t size, const char *format, ...) 887 ATTR_FORMAT (printf, 3, 4); 888 889 extern int parse_escape (char **); 890 891 /* Message to be printed before the error message, when an error occurs. */ 892 893 extern char *error_pre_print; 894 895 /* Message to be printed before the error message, when an error occurs. */ 896 897 extern char *quit_pre_print; 898 899 /* Message to be printed before the warning message, when a warning occurs. */ 900 901 extern char *warning_pre_print; 902 903 extern NORETURN void verror (const char *fmt, va_list ap) 904 ATTR_NORETURN ATTR_FORMAT (printf, 1, 0); 905 906 extern NORETURN void error (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2); 907 908 extern NORETURN void error_stream (struct ui_file *) ATTR_NORETURN; 909 910 extern NORETURN void vfatal (const char *fmt, va_list ap) 911 ATTR_NORETURN ATTR_FORMAT (printf, 1, 0); 912 913 extern NORETURN void fatal (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2); 914 915 extern NORETURN void internal_verror (const char *file, int line, 916 const char *, va_list ap) 917 ATTR_NORETURN ATTR_FORMAT (printf, 3, 0); 918 919 extern NORETURN void internal_error (const char *file, int line, 920 const char *, ...) ATTR_NORETURN ATTR_FORMAT (printf, 3, 4); 921 922 extern void internal_vwarning (const char *file, int line, 923 const char *, va_list ap) 924 ATTR_FORMAT (printf, 3, 0); 925 926 extern void internal_warning (const char *file, int line, 927 const char *, ...) ATTR_FORMAT (printf, 3, 4); 928 929 extern NORETURN void nomem (long) ATTR_NORETURN; 930 931 extern void warning (const char *, ...) ATTR_FORMAT (printf, 1, 2); 932 933 extern void vwarning (const char *, va_list args) ATTR_FORMAT (printf, 1, 0); 934 935 /* List of known OS ABIs. If you change this, make sure to update the 936 table in osabi.c. */ 937 enum gdb_osabi 938 { 939 GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info. */ 940 941 GDB_OSABI_UNKNOWN = 0, /* keep this zero */ 942 943 GDB_OSABI_SVR4, 944 GDB_OSABI_HURD, 945 GDB_OSABI_SOLARIS, 946 GDB_OSABI_OSF1, 947 GDB_OSABI_LINUX, 948 GDB_OSABI_FREEBSD_AOUT, 949 GDB_OSABI_FREEBSD_ELF, 950 GDB_OSABI_NETBSD_AOUT, 951 GDB_OSABI_NETBSD_ELF, 952 GDB_OSABI_OPENBSD_ELF, 953 GDB_OSABI_DRAGONFLY, 954 GDB_OSABI_WINCE, 955 GDB_OSABI_GO32, 956 GDB_OSABI_IRIX, 957 GDB_OSABI_INTERIX, 958 GDB_OSABI_HPUX_ELF, 959 GDB_OSABI_HPUX_SOM, 960 961 GDB_OSABI_QNXNTO, 962 963 GDB_OSABI_CYGWIN, 964 GDB_OSABI_AIX, 965 GDB_OSABI_DICOS, 966 GDB_OSABI_DARWIN, 967 968 GDB_OSABI_INVALID /* keep this last */ 969 }; 970 971 /* Global functions from other, non-gdb GNU thingies. 972 Libiberty thingies are no longer declared here. We include libiberty.h 973 above, instead. */ 974 975 /* From other system libraries */ 976 977 #ifdef HAVE_STDDEF_H 978 #include <stddef.h> 979 #endif 980 981 #ifdef HAVE_STDLIB_H 982 #include <stdlib.h> 983 #endif 984 #ifndef min 985 #define min(a, b) ((a) < (b) ? (a) : (b)) 986 #endif 987 #ifndef max 988 #define max(a, b) ((a) > (b) ? (a) : (b)) 989 #endif 990 991 992 #ifndef atof 993 extern double atof (const char *); /* X3.159-1989 4.10.1.1 */ 994 #endif 995 996 /* Various possibilities for alloca. */ 997 #ifndef alloca 998 #ifdef __GNUC__ 999 #define alloca __builtin_alloca 1000 #else /* Not GNU C */ 1001 #ifdef HAVE_ALLOCA_H 1002 #include <alloca.h> 1003 #else 1004 #ifdef _AIX 1005 #pragma alloca 1006 #else 1007 1008 /* We need to be careful not to declare this in a way which conflicts with 1009 bison. Bison never declares it as char *, but under various circumstances 1010 (like __hpux) we need to use void *. */ 1011 extern void *alloca (); 1012 #endif /* Not _AIX */ 1013 #endif /* Not HAVE_ALLOCA_H */ 1014 #endif /* Not GNU C */ 1015 #endif /* alloca not defined */ 1016 1017 /* Dynamic target-system-dependent parameters for GDB. */ 1018 #include "gdbarch.h" 1019 1020 /* Maximum size of a register. Something small, but large enough for 1021 all known ISAs. If it turns out to be too small, make it bigger. */ 1022 1023 enum { MAX_REGISTER_SIZE = 16 }; 1024 1025 /* Static target-system-dependent parameters for GDB. */ 1026 1027 /* Number of bits in a char or unsigned char for the target machine. 1028 Just like CHAR_BIT in <limits.h> but describes the target machine. */ 1029 #if !defined (TARGET_CHAR_BIT) 1030 #define TARGET_CHAR_BIT 8 1031 #endif 1032 1033 /* If we picked up a copy of CHAR_BIT from a configuration file 1034 (which may get it by including <limits.h>) then use it to set 1035 the number of bits in a host char. If not, use the same size 1036 as the target. */ 1037 1038 #if defined (CHAR_BIT) 1039 #define HOST_CHAR_BIT CHAR_BIT 1040 #else 1041 #define HOST_CHAR_BIT TARGET_CHAR_BIT 1042 #endif 1043 1044 /* In findvar.c. */ 1045 1046 extern LONGEST extract_signed_integer (const gdb_byte *, int, 1047 enum bfd_endian); 1048 1049 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int, 1050 enum bfd_endian); 1051 1052 extern int extract_long_unsigned_integer (const gdb_byte *, int, 1053 enum bfd_endian, LONGEST *); 1054 1055 extern CORE_ADDR extract_typed_address (const gdb_byte *buf, 1056 struct type *type); 1057 1058 extern void store_signed_integer (gdb_byte *, int, 1059 enum bfd_endian, LONGEST); 1060 1061 extern void store_unsigned_integer (gdb_byte *, int, 1062 enum bfd_endian, ULONGEST); 1063 1064 extern void store_typed_address (gdb_byte *buf, struct type *type, 1065 CORE_ADDR addr); 1066 1067 1068 /* From valops.c */ 1069 1070 extern int watchdog; 1071 1072 /* Hooks for alternate command interfaces. */ 1073 1074 /* The name of the interpreter if specified on the command line. */ 1075 extern char *interpreter_p; 1076 1077 /* If a given interpreter matches INTERPRETER_P then it should update 1078 deprecated_command_loop_hook and deprecated_init_ui_hook with the 1079 per-interpreter implementation. */ 1080 /* FIXME: deprecated_command_loop_hook and deprecated_init_ui_hook 1081 should be moved here. */ 1082 1083 struct target_waitstatus; 1084 struct cmd_list_element; 1085 1086 extern void (*deprecated_pre_add_symbol_hook) (const char *); 1087 extern void (*deprecated_post_add_symbol_hook) (void); 1088 extern void (*selected_frame_level_changed_hook) (int); 1089 extern int (*deprecated_ui_loop_hook) (int signo); 1090 extern void (*deprecated_init_ui_hook) (char *argv0); 1091 extern void (*deprecated_command_loop_hook) (void); 1092 extern void (*deprecated_show_load_progress) (const char *section, 1093 unsigned long section_sent, 1094 unsigned long section_size, 1095 unsigned long total_sent, 1096 unsigned long total_size); 1097 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, 1098 int line, int stopline, 1099 int noerror); 1100 extern int (*deprecated_query_hook) (const char *, va_list) 1101 ATTRIBUTE_FPTR_PRINTF(1,0); 1102 extern void (*deprecated_warning_hook) (const char *, va_list) 1103 ATTRIBUTE_FPTR_PRINTF(1,0); 1104 extern void (*deprecated_flush_hook) (struct ui_file * stream); 1105 extern void (*deprecated_interactive_hook) (void); 1106 extern void (*deprecated_readline_begin_hook) (char *, ...) 1107 ATTRIBUTE_FPTR_PRINTF_1; 1108 extern char *(*deprecated_readline_hook) (char *); 1109 extern void (*deprecated_readline_end_hook) (void); 1110 extern void (*deprecated_register_changed_hook) (int regno); 1111 extern void (*deprecated_memory_changed_hook) (CORE_ADDR addr, int len); 1112 extern void (*deprecated_context_hook) (int); 1113 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, 1114 struct target_waitstatus *status, 1115 int options); 1116 1117 extern void (*deprecated_attach_hook) (void); 1118 extern void (*deprecated_detach_hook) (void); 1119 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c, 1120 char *cmd, int from_tty); 1121 1122 extern void (*deprecated_set_hook) (struct cmd_list_element * c); 1123 1124 extern void (*deprecated_error_begin_hook) (void); 1125 1126 extern int (*deprecated_ui_load_progress_hook) (const char *section, 1127 unsigned long num); 1128 1129 1130 /* Inhibit window interface if non-zero. */ 1131 1132 extern int use_windows; 1133 1134 /* Symbolic definitions of filename-related things. */ 1135 /* FIXME, this doesn't work very well if host and executable 1136 filesystems conventions are different. */ 1137 1138 #ifdef __MSDOS__ 1139 # define CANT_FORK 1140 # define GLOBAL_CURDIR 1141 # define DIRNAME_SEPARATOR ';' 1142 #endif 1143 1144 #if !defined (__CYGWIN__) && defined (_WIN32) 1145 # define DIRNAME_SEPARATOR ';' 1146 #endif 1147 1148 #ifndef DIRNAME_SEPARATOR 1149 #define DIRNAME_SEPARATOR ':' 1150 #endif 1151 1152 #ifndef SLASH_STRING 1153 #define SLASH_STRING "/" 1154 #endif 1155 1156 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID. 1157 The name ``TIDGET'' is a historical accident. Many uses of TIDGET 1158 in the code actually refer to a lightweight process id, i.e, 1159 something that can be considered a process id in its own right for 1160 certain purposes. */ 1161 1162 #ifndef PIDGET 1163 #define PIDGET(PTID) (ptid_get_pid (PTID)) 1164 #define TIDGET(PTID) (ptid_get_lwp (PTID)) 1165 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0) 1166 #endif 1167 1168 /* Define well known filenos if the system does not define them. */ 1169 #ifndef STDIN_FILENO 1170 #define STDIN_FILENO 0 1171 #endif 1172 #ifndef STDOUT_FILENO 1173 #define STDOUT_FILENO 1 1174 #endif 1175 #ifndef STDERR_FILENO 1176 #define STDERR_FILENO 2 1177 #endif 1178 1179 /* If this definition isn't overridden by the header files, assume 1180 that isatty and fileno exist on this system. */ 1181 #ifndef ISATTY 1182 #define ISATTY(FP) (isatty (fileno (FP))) 1183 #endif 1184 1185 /* Ensure that V is aligned to an N byte boundary (B's assumed to be a 1186 power of 2). Round up/down when necessary. Examples of correct 1187 use include: 1188 1189 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment 1190 write_memory (addr, value, len); 1191 addr += len; 1192 1193 and: 1194 1195 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned 1196 write_memory (sp, value, len); 1197 1198 Note that uses such as: 1199 1200 write_memory (addr, value, len); 1201 addr += align_up (len, 8); 1202 1203 and: 1204 1205 sp -= align_up (len, 8); 1206 write_memory (sp, value, len); 1207 1208 are typically not correct as they don't ensure that the address (SP 1209 or ADDR) is correctly aligned (relying on previous alignment to 1210 keep things right). This is also why the methods are called 1211 "align_..." instead of "round_..." as the latter reads better with 1212 this incorrect coding style. */ 1213 1214 extern ULONGEST align_up (ULONGEST v, int n); 1215 extern ULONGEST align_down (ULONGEST v, int n); 1216 1217 /* Allocation and deallocation functions for the libiberty hash table 1218 which use obstacks. */ 1219 void *hashtab_obstack_allocate (void *data, size_t size, size_t count); 1220 void dummy_obstack_deallocate (void *object, void *data); 1221 1222 #endif /* #ifndef DEFS_H */ 1223