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 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 32#ifdef HAVE_STDDEF_H 33#include <stddef.h> 34#endif 35 36#ifdef HAVE_UNISTD_H 37#include <unistd.h> 38#endif 39 40#include <fcntl.h> 41 42/* First include ansidecl.h so we can use the various macro definitions 43 here and in all subsequent file inclusions. */ 44 45#include "ansidecl.h" 46 47#include "gdb_locale.h" 48 49/* For ``enum target_signal''. */ 50#include "gdb/signals.h" 51 52/* Just in case they're not defined in stdio.h. */ 53 54#ifndef SEEK_SET 55#define SEEK_SET 0 56#endif 57#ifndef SEEK_CUR 58#define SEEK_CUR 1 59#endif 60 61/* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms. 62 It is used as an access modifier in calls to open(), where it acts 63 similarly to the "b" character in fopen()'s MODE argument. On Posix 64 platforms it should be a no-op, so it is defined as 0 here. This 65 ensures that the symbol may be used freely elsewhere in gdb. */ 66 67#ifndef O_BINARY 68#define O_BINARY 0 69#endif 70 71#include <stdarg.h> /* For va_list. */ 72 73#include "libiberty.h" 74 75/* Rather than duplicate all the logic in BFD for figuring out what 76 types to use (which can be pretty complicated), symply define them 77 in terms of the corresponding type from BFD. */ 78 79#include "bfd.h" 80 81/* A byte from the program being debugged. */ 82typedef bfd_byte gdb_byte; 83 84/* An address in the program being debugged. Host byte order. */ 85typedef bfd_vma CORE_ADDR; 86 87/* This is to make sure that LONGEST is at least as big as CORE_ADDR. */ 88 89#ifndef LONGEST 90 91#ifdef BFD64 92 93#define LONGEST BFD_HOST_64_BIT 94#define ULONGEST BFD_HOST_U_64_BIT 95 96#else /* No BFD64 */ 97 98#ifdef CC_HAS_LONG_LONG 99#define LONGEST long long 100#define ULONGEST unsigned long long 101#else 102#ifdef BFD_HOST_64_BIT 103/* BFD_HOST_64_BIT is defined for some hosts that don't have long long 104 (e.g. i386-windows) so try it. */ 105#define LONGEST BFD_HOST_64_BIT 106#define ULONGEST BFD_HOST_U_64_BIT 107#else 108#define LONGEST long 109#define ULONGEST unsigned long 110#endif 111#endif 112 113#endif /* No BFD64 */ 114 115#endif /* ! LONGEST */ 116 117#ifndef min 118#define min(a, b) ((a) < (b) ? (a) : (b)) 119#endif 120#ifndef max 121#define max(a, b) ((a) > (b) ? (a) : (b)) 122#endif 123 124/* Macros to do string compares. 125 126 NOTE: cagney/2000-03-14: 127 128 While old code can continue to refer to these macros, new code is 129 probably better off using strcmp() directly vis: ``strcmp() == 0'' 130 and ``strcmp() != 0''. 131 132 This is because modern compilers can directly inline strcmp() 133 making the original justification for these macros - avoid function 134 call overhead by pre-testing the first characters 135 (``*X==*Y?...:0'') - redundant. 136 137 ``Even if [...] testing the first character does have a modest 138 performance improvement, I'd rather that whenever a performance 139 issue is found that we spend the effort on algorithmic 140 optimizations than micro-optimizing.'' J.T. */ 141 142/* NOTE: cagney/2003-11-23: All instances of STREQ[N] covered by 143 testing GDB on a stabs system have been replaced by equivalent 144 str[n]cmp calls. To avoid the possability of introducing bugs when 145 making untested changes, the remaining references were deprecated 146 rather than replaced. */ 147 148/* DISCLAIMER: cagney/2003-11-23: Simplified definition of these 149 macros so that they just map directly onto strcmp equivalent. I'm 150 not responsible for any breakage due to code that relied on the old 151 underlying implementation. */ 152 153#define DEPRECATED_STREQ(a,b) (strcmp ((a), (b)) == 0) 154#define DEPRECATED_STREQN(a,b,c) (strncmp ((a), (b), (c)) == 0) 155 156/* Check if a character is one of the commonly used C++ marker characters. */ 157extern int is_cplus_marker (int); 158 159/* enable xdb commands if set */ 160extern int xdb_commands; 161 162/* enable dbx commands if set */ 163extern int dbx_commands; 164 165/* System root path, used to find libraries etc. */ 166extern char *gdb_sysroot; 167 168/* Search path for separate debug files. */ 169extern char *debug_file_directory; 170 171extern int quit_flag; 172extern int immediate_quit; 173extern int sevenbit_strings; 174 175extern void quit (void); 176 177/* FIXME: cagney/2000-03-13: It has been suggested that the peformance 178 benefits of having a ``QUIT'' macro rather than a function are 179 marginal. If the overhead of a QUIT function call is proving 180 significant then its calling frequency should probably be reduced 181 [kingdon]. A profile analyzing the current situtation is 182 needed. */ 183 184#ifdef QUIT 185/* do twice to force compiler warning */ 186#define QUIT_FIXME "FIXME" 187#define QUIT_FIXME "ignoring redefinition of QUIT" 188#else 189#define QUIT { \ 190 if (quit_flag) quit (); \ 191 if (deprecated_interactive_hook) deprecated_interactive_hook (); \ 192} 193#endif 194 195/* Languages represented in the symbol table and elsewhere. 196 This should probably be in language.h, but since enum's can't 197 be forward declared to satisfy opaque references before their 198 actual definition, needs to be here. */ 199 200enum language 201 { 202 language_unknown, /* Language not known */ 203 language_auto, /* Placeholder for automatic setting */ 204 language_c, /* C */ 205 language_cplus, /* C++ */ 206 language_objc, /* Objective-C */ 207 language_java, /* Java */ 208 language_fortran, /* Fortran */ 209 language_m2, /* Modula-2 */ 210 language_asm, /* Assembly language */ 211 language_pascal, /* Pascal */ 212 language_ada, /* Ada */ 213 language_scm, /* Guile Scheme */ 214 language_minimal, /* All other languages, minimal support only */ 215 nr_languages 216 }; 217 218enum precision_type 219 { 220 single_precision, 221 double_precision, 222 unspecified_precision 223 }; 224 225/* A generic, not quite boolean, enumeration. */ 226enum auto_boolean 227{ 228 AUTO_BOOLEAN_TRUE, 229 AUTO_BOOLEAN_FALSE, 230 AUTO_BOOLEAN_AUTO 231}; 232 233/* Potential ways that a function can return a value of a given type. */ 234enum return_value_convention 235{ 236 /* Where the return value has been squeezed into one or more 237 registers. */ 238 RETURN_VALUE_REGISTER_CONVENTION, 239 /* Commonly known as the "struct return convention". The caller 240 passes an additional hidden first parameter to the caller. That 241 parameter contains the address at which the value being returned 242 should be stored. While typically, and historically, used for 243 large structs, this is convention is applied to values of many 244 different types. */ 245 RETURN_VALUE_STRUCT_CONVENTION, 246 /* Like the "struct return convention" above, but where the ABI 247 guarantees that the called function stores the address at which 248 the value being returned is stored in a well-defined location, 249 such as a register or memory slot in the stack frame. Don't use 250 this if the ABI doesn't explicitly guarantees this. */ 251 RETURN_VALUE_ABI_RETURNS_ADDRESS, 252 /* Like the "struct return convention" above, but where the ABI 253 guarantees that the address at which the value being returned is 254 stored will be available in a well-defined location, such as a 255 register or memory slot in the stack frame. Don't use this if 256 the ABI doesn't explicitly guarantees this. */ 257 RETURN_VALUE_ABI_PRESERVES_ADDRESS, 258}; 259 260/* the cleanup list records things that have to be undone 261 if an error happens (descriptors to be closed, memory to be freed, etc.) 262 Each link in the chain records a function to call and an 263 argument to give it. 264 265 Use make_cleanup to add an element to the cleanup chain. 266 Use do_cleanups to do all cleanup actions back to a given 267 point in the chain. Use discard_cleanups to remove cleanups 268 from the chain back to a given point, not doing them. */ 269 270struct cleanup 271 { 272 struct cleanup *next; 273 void (*function) (void *); 274 void *arg; 275 }; 276 277 278/* The ability to declare that a function never returns is useful, but 279 not really required to compile GDB successfully, so the NORETURN and 280 ATTR_NORETURN macros normally expand into nothing. */ 281 282/* If compiling with older versions of GCC, a function may be declared 283 "volatile" to indicate that it does not return. */ 284 285#ifndef NORETURN 286#if defined(__GNUC__) \ 287 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)) 288#define NORETURN volatile 289#else 290#define NORETURN /* nothing */ 291#endif 292#endif 293 294/* GCC 2.5 and later versions define a function attribute "noreturn", 295 which is the preferred way to declare that a function never returns. 296 However GCC 2.7 appears to be the first version in which this fully 297 works everywhere we use it. */ 298 299#ifndef ATTR_NORETURN 300#if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)) 301#define ATTR_NORETURN __attribute__ ((noreturn)) 302#else 303#define ATTR_NORETURN /* nothing */ 304#endif 305#endif 306 307#ifndef ATTR_FORMAT 308#if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4)) 309#define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y))) 310#else 311#define ATTR_FORMAT(type, x, y) /* nothing */ 312#endif 313#endif 314 315/* Be conservative and use enum bitfields only with GCC. 316 This is copied from gcc 3.3.1, system.h. */ 317 318#if defined(__GNUC__) && (__GNUC__ >= 2) 319#define ENUM_BITFIELD(TYPE) enum TYPE 320#else 321#define ENUM_BITFIELD(TYPE) unsigned int 322#endif 323 324/* Needed for various prototypes */ 325 326struct symtab; 327struct breakpoint; 328struct frame_info; 329 330/* From utils.c */ 331 332extern void initialize_utils (void); 333 334extern void notice_quit (void); 335 336extern int strcmp_iw (const char *, const char *); 337 338extern int strcmp_iw_ordered (const char *, const char *); 339 340extern int streq (const char *, const char *); 341 342extern int subset_compare (char *, char *); 343 344extern char *safe_strerror (int); 345 346#define ALL_CLEANUPS ((struct cleanup *)0) 347 348extern void do_cleanups (struct cleanup *); 349extern void do_final_cleanups (struct cleanup *); 350extern void do_run_cleanups (struct cleanup *); 351extern void do_exec_cleanups (struct cleanup *); 352extern void do_exec_error_cleanups (struct cleanup *); 353 354extern void discard_cleanups (struct cleanup *); 355extern void discard_final_cleanups (struct cleanup *); 356extern void discard_exec_error_cleanups (struct cleanup *); 357extern void discard_my_cleanups (struct cleanup **, struct cleanup *); 358 359/* NOTE: cagney/2000-03-04: This typedef is strictly for the 360 make_cleanup function declarations below. Do not use this typedef 361 as a cast when passing functions into the make_cleanup() code. 362 Instead either use a bounce function or add a wrapper function. 363 Calling a f(char*) function with f(void*) is non-portable. */ 364typedef void (make_cleanup_ftype) (void *); 365 366extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *); 367 368extern struct cleanup *make_cleanup_freeargv (char **); 369 370struct ui_file; 371extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *); 372 373struct section_addr_info; 374extern struct cleanup *(make_cleanup_free_section_addr_info 375 (struct section_addr_info *)); 376 377extern struct cleanup *make_cleanup_close (int fd); 378 379extern struct cleanup *make_cleanup_bfd_close (bfd *abfd); 380 381extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *); 382 383extern struct cleanup *make_my_cleanup (struct cleanup **, 384 make_cleanup_ftype *, void *); 385 386extern struct cleanup *make_run_cleanup (make_cleanup_ftype *, void *); 387 388extern struct cleanup *make_exec_cleanup (make_cleanup_ftype *, void *); 389extern struct cleanup *make_exec_error_cleanup (make_cleanup_ftype *, void *); 390 391extern struct cleanup *save_cleanups (void); 392extern struct cleanup *save_final_cleanups (void); 393extern struct cleanup *save_my_cleanups (struct cleanup **); 394 395extern void restore_cleanups (struct cleanup *); 396extern void restore_final_cleanups (struct cleanup *); 397extern void restore_my_cleanups (struct cleanup **, struct cleanup *); 398 399extern void free_current_contents (void *); 400 401extern void null_cleanup (void *); 402 403extern int myread (int, char *, int); 404 405extern int query (const char *, ...) ATTR_FORMAT (printf, 1, 2); 406extern int nquery (const char *, ...) ATTR_FORMAT (printf, 1, 2); 407extern int yquery (const char *, ...) ATTR_FORMAT (printf, 1, 2); 408 409extern void init_page_info (void); 410 411extern char *gdb_realpath (const char *); 412extern char *xfullpath (const char *); 413 414extern unsigned long gnu_debuglink_crc32 (unsigned long crc, 415 unsigned char *buf, size_t len); 416 417ULONGEST strtoulst (const char *num, const char **trailer, int base); 418 419char *ldirname (const char *filename); 420 421/* From demangle.c */ 422 423extern void set_demangling_style (char *); 424 425/* From tm.h */ 426 427struct type; 428typedef int (use_struct_convention_fn) (int gcc_p, struct type * value_type); 429extern use_struct_convention_fn generic_use_struct_convention; 430 431 432/* Annotation stuff. */ 433 434extern int annotation_level; /* in stack.c */ 435 436extern void begin_line (void); 437 438extern void wrap_here (char *); 439 440extern void reinitialize_more_filter (void); 441 442/* Normal results */ 443extern struct ui_file *gdb_stdout; 444/* Input stream */ 445extern struct ui_file *gdb_stdin; 446/* Serious error notifications */ 447extern struct ui_file *gdb_stderr; 448/* Log/debug/trace messages that should bypass normal stdout/stderr 449 filtering. For moment, always call this stream using 450 *_unfiltered. In the very near future that restriction shall be 451 removed - either call shall be unfiltered. (cagney 1999-06-13). */ 452extern struct ui_file *gdb_stdlog; 453/* Target output that should bypass normal stdout/stderr filtering. 454 For moment, always call this stream using *_unfiltered. In the 455 very near future that restriction shall be removed - either call 456 shall be unfiltered. (cagney 1999-07-02). */ 457extern struct ui_file *gdb_stdtarg; 458extern struct ui_file *gdb_stdtargerr; 459extern struct ui_file *gdb_stdtargin; 460 461#include "ui-file.h" 462 463/* More generic printf like operations. Filtered versions may return 464 non-locally on error. */ 465 466extern void fputs_filtered (const char *, struct ui_file *); 467 468extern void fputs_unfiltered (const char *, struct ui_file *); 469 470extern int fputc_filtered (int c, struct ui_file *); 471 472extern int fputc_unfiltered (int c, struct ui_file *); 473 474extern int putchar_filtered (int c); 475 476extern int putchar_unfiltered (int c); 477 478extern void puts_filtered (const char *); 479 480extern void puts_unfiltered (const char *); 481 482extern void puts_filtered_tabular (char *string, int width, int right); 483 484extern void puts_debug (char *prefix, char *string, char *suffix); 485 486extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf, 1, 0); 487 488extern void vfprintf_filtered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0); 489 490extern void fprintf_filtered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3); 491 492extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 3, 4); 493 494extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf, 1, 2); 495 496extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf, 2, 3); 497 498extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf, 1, 0); 499 500extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0); 501 502extern void fprintf_unfiltered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3); 503 504extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf, 1, 2); 505 506extern void print_spaces (int, struct ui_file *); 507 508extern void print_spaces_filtered (int, struct ui_file *); 509 510extern char *n_spaces (int); 511 512extern void fputstr_filtered (const char *str, int quotr, struct ui_file * stream); 513 514extern void fputstr_unfiltered (const char *str, int quotr, struct ui_file * stream); 515 516extern void fputstrn_filtered (const char *str, int n, int quotr, struct ui_file * stream); 517 518extern void fputstrn_unfiltered (const char *str, int n, int quotr, struct ui_file * stream); 519 520/* Display the host ADDR on STREAM formatted as ``0x%x''. */ 521extern void gdb_print_host_address (const void *addr, struct ui_file *stream); 522 523/* Convert a CORE_ADDR into a HEX string. paddr() is like %08lx. 524 paddr_nz() is like %lx. paddr_u() is like %lu. paddr_width() is 525 for ``%*''. */ 526extern int strlen_paddr (void); 527extern char *paddr (CORE_ADDR addr); 528extern char *paddr_nz (CORE_ADDR addr); 529extern char *paddr_u (CORE_ADDR addr); 530extern char *paddr_d (LONGEST addr); 531 532/* Like 0x%lx, replaces deprecated_print_address_numeric. */ 533extern const char *paddress (CORE_ADDR addr); 534 535extern char *phex (ULONGEST l, int sizeof_l); 536extern char *phex_nz (ULONGEST l, int sizeof_l); 537extern char *int_string (LONGEST, int, int, int, int); 538 539/* Like paddr() only print/scan raw CORE_ADDR. The output from 540 core_addr_to_string() can be passed direct to 541 string_to_core_addr(). */ 542extern const char *core_addr_to_string (const CORE_ADDR addr); 543extern const char *core_addr_to_string_nz (const CORE_ADDR addr); 544extern CORE_ADDR string_to_core_addr (const char *my_string); 545 546/* Return a string that contains a number formatted as a hex 547 string. */ 548extern char *hex_string (LONGEST); 549extern char *hex_string_custom (LONGEST, int); 550 551extern void fprintf_symbol_filtered (struct ui_file *, char *, 552 enum language, int); 553 554extern NORETURN void perror_with_name (const char *) ATTR_NORETURN; 555 556extern void print_sys_errmsg (const char *, int); 557 558/* From regex.c or libc. BSD 4.4 declares this with the argument type as 559 "const char *" in unistd.h, so we can't declare the argument 560 as "char *". */ 561 562extern char *re_comp (const char *); 563 564/* From symfile.c */ 565 566extern void symbol_file_command (char *, int); 567 568/* Remote targets may wish to use this as their load function. */ 569extern void generic_load (char *name, int from_tty); 570 571/* Report on STREAM the performance of memory transfer operation, 572 such as 'load'. 573 DATA_COUNT is the number of bytes transferred. 574 WRITE_COUNT is the number of separate write operations, or 0, 575 if that information is not available. 576 START_TIME is the time at which an operation was started. 577 END_TIME is the time at which an operation ended. */ 578struct timeval; 579extern void print_transfer_performance (struct ui_file *stream, 580 unsigned long data_count, 581 unsigned long write_count, 582 const struct timeval *start_time, 583 const struct timeval *end_time); 584 585/* From top.c */ 586 587typedef void initialize_file_ftype (void); 588 589extern char *skip_quoted (char *); 590 591extern char *gdb_readline (char *); 592 593extern char *gdb_readline_wrapper (char *); 594 595extern char *command_line_input (char *, int, char *); 596 597extern void print_prompt (void); 598 599extern int input_from_terminal_p (void); 600 601extern int info_verbose; 602 603/* From printcmd.c */ 604 605extern void set_next_address (CORE_ADDR); 606 607extern void print_address_symbolic (CORE_ADDR, struct ui_file *, int, 608 char *); 609 610extern int build_address_symbolic (CORE_ADDR addr, 611 int do_demangle, 612 char **name, 613 int *offset, 614 char **filename, 615 int *line, 616 int *unmapped); 617 618extern void deprecated_print_address_numeric (CORE_ADDR, int, struct ui_file *); 619 620extern void print_address (CORE_ADDR, struct ui_file *); 621 622/* From source.c */ 623 624#define OPF_TRY_CWD_FIRST 0x01 625#define OPF_SEARCH_IN_PATH 0x02 626 627extern int openp (const char *, int, const char *, int, int, char **); 628 629extern int source_full_path_of (char *, char **); 630 631extern void mod_path (char *, char **); 632 633extern void add_path (char *, char **, int); 634 635extern void directory_command (char *, int); 636 637extern void directory_switch (char *, int); 638 639extern char *source_path; 640 641extern void init_source_path (void); 642 643extern void init_last_source_visited (void); 644 645/* From exec.c */ 646 647extern void exec_set_section_offsets (bfd_signed_vma text_off, 648 bfd_signed_vma data_off, 649 bfd_signed_vma bss_off); 650 651/* Take over the 'find_mapped_memory' vector from exec.c. */ 652extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR, 653 unsigned long, 654 int, int, int, 655 void *), 656 void *)); 657 658/* Possible lvalue types. Like enum language, this should be in 659 value.h, but needs to be here for the same reason. */ 660 661enum lval_type 662 { 663 /* Not an lval. */ 664 not_lval, 665 /* In memory. */ 666 lval_memory, 667 /* In a register. Registers are relative to a frame. */ 668 lval_register, 669 /* In a gdb internal variable. */ 670 lval_internalvar, 671 /* Part of a gdb internal variable (structure field). */ 672 lval_internalvar_component 673 }; 674 675/* Control types for commands */ 676 677enum misc_command_type 678 { 679 ok_command, 680 end_command, 681 else_command, 682 nop_command 683 }; 684 685enum command_control_type 686 { 687 simple_control, 688 break_control, 689 continue_control, 690 while_control, 691 if_control, 692 commands_control, 693 invalid_control 694 }; 695 696/* Structure for saved commands lines 697 (for breakpoints, defined commands, etc). */ 698 699struct command_line 700 { 701 struct command_line *next; 702 char *line; 703 enum command_control_type control_type; 704 int body_count; 705 struct command_line **body_list; 706 }; 707 708extern struct command_line *read_command_lines (char *, int); 709 710extern void free_command_lines (struct command_line **); 711 712/* To continue the execution commands when running gdb asynchronously. 713 A continuation structure contains a pointer to a function to be called 714 to finish the command, once the target has stopped. Such mechanism is 715 used bt the finish and until commands, and in the remote protocol 716 when opening an extended-remote connection. */ 717 718struct continuation_arg 719 { 720 struct continuation_arg *next; 721 union continuation_data { 722 void *pointer; 723 int integer; 724 long longint; 725 } data; 726 }; 727 728struct continuation 729 { 730 void (*continuation_hook) (struct continuation_arg *); 731 struct continuation_arg *arg_list; 732 struct continuation *next; 733 }; 734 735/* In infrun.c. */ 736extern struct continuation *cmd_continuation; 737/* Used only by the step_1 function. */ 738extern struct continuation *intermediate_continuation; 739 740/* From utils.c */ 741extern void add_continuation (void (*)(struct continuation_arg *), 742 struct continuation_arg *); 743extern void do_all_continuations (void); 744extern void discard_all_continuations (void); 745 746extern void add_intermediate_continuation (void (*)(struct continuation_arg *), 747 struct continuation_arg *); 748extern void do_all_intermediate_continuations (void); 749extern void discard_all_intermediate_continuations (void); 750 751/* String containing the current directory (what getwd would return). */ 752 753extern char *current_directory; 754 755/* Default radixes for input and output. Only some values supported. */ 756extern unsigned input_radix; 757extern unsigned output_radix; 758 759/* Possibilities for prettyprint parameters to routines which print 760 things. Like enum language, this should be in value.h, but needs 761 to be here for the same reason. FIXME: If we can eliminate this 762 as an arg to LA_VAL_PRINT, then we can probably move it back to 763 value.h. */ 764 765enum val_prettyprint 766 { 767 Val_no_prettyprint = 0, 768 Val_prettyprint, 769 /* Use the default setting which the user has specified. */ 770 Val_pretty_default 771 }; 772 773/* The ptid struct is a collection of the various "ids" necessary 774 for identifying the inferior. This consists of the process id 775 (pid), thread id (tid), and other fields necessary for uniquely 776 identifying the inferior process/thread being debugged. When 777 manipulating ptids, the constructors, accessors, and predicate 778 declared in inferior.h should be used. These are as follows: 779 780 ptid_build - Make a new ptid from a pid, lwp, and tid. 781 pid_to_ptid - Make a new ptid from just a pid. 782 ptid_get_pid - Fetch the pid component of a ptid. 783 ptid_get_lwp - Fetch the lwp component of a ptid. 784 ptid_get_tid - Fetch the tid component of a ptid. 785 ptid_equal - Test to see if two ptids are equal. 786 787 Please do NOT access the struct ptid members directly (except, of 788 course, in the implementation of the above ptid manipulation 789 functions). */ 790 791struct ptid 792 { 793 /* Process id */ 794 int pid; 795 796 /* Lightweight process id */ 797 long lwp; 798 799 /* Thread id */ 800 long tid; 801 }; 802 803typedef struct ptid ptid_t; 804 805 806 807/* Optional host machine definition. Pure autoconf targets will not 808 need a "xm.h" file. This will be a symlink to one of the xm-*.h 809 files, built by the `configure' script. */ 810 811#ifdef GDB_XM_FILE 812#include "xm.h" 813#endif 814 815/* Optional native machine support. Non-native (and possibly pure 816 multi-arch) targets do not need a "nm.h" file. This will be a 817 symlink to one of the nm-*.h files, built by the `configure' 818 script. */ 819 820#ifdef GDB_NM_FILE 821#include "nm.h" 822#endif 823 824/* Optional target machine definition. Pure multi-arch configurations 825 do not need a "tm.h" file. This will be a symlink to one of the 826 tm-*.h files, built by the `configure' script. */ 827 828#ifdef GDB_TM_FILE 829#include "tm.h" 830#endif 831 832/* Assume that fopen accepts the letter "b" in the mode string. 833 It is demanded by ISO C9X, and should be supported on all 834 platforms that claim to have a standard-conforming C library. On 835 true POSIX systems it will be ignored and have no effect. There 836 may still be systems without a standard-conforming C library where 837 an ISO C9X compiler (GCC) is available. Known examples are SunOS 838 4.x and 4.3BSD. This assumption means these systems are no longer 839 supported. */ 840#ifndef FOPEN_RB 841# include "fopen-bin.h" 842#endif 843 844/* Defaults for system-wide constants (if not defined by xm.h, we fake it). 845 FIXME: Assumes 2's complement arithmetic */ 846 847#if !defined (UINT_MAX) 848#define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */ 849#endif 850 851#if !defined (INT_MAX) 852#define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */ 853#endif 854 855#if !defined (INT_MIN) 856#define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */ 857#endif 858 859#if !defined (ULONG_MAX) 860#define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */ 861#endif 862 863#if !defined (LONG_MAX) 864#define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */ 865#endif 866 867#if !defined (ULONGEST_MAX) 868#define ULONGEST_MAX (~(ULONGEST)0) /* 0xFFFFFFFFFFFFFFFF for 64-bits */ 869#endif 870 871#if !defined (LONGEST_MAX) /* 0x7FFFFFFFFFFFFFFF for 64-bits */ 872#define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1)) 873#endif 874 875/* Convert a LONGEST to an int. This is used in contexts (e.g. number of 876 arguments to a function, number in a value history, register number, etc.) 877 where the value must not be larger than can fit in an int. */ 878 879extern int longest_to_int (LONGEST); 880 881/* Assorted functions we can declare, now that const and volatile are 882 defined. */ 883 884extern char *savestring (const char *, size_t); 885 886/* xmalloc(), xrealloc() and xcalloc() have already been declared in 887 "libiberty.h". */ 888extern void xfree (void *); 889 890/* Like xmalloc, but zero the memory. */ 891extern void *xzalloc (size_t); 892 893/* Utility macros to allocate typed memory. Avoids errors like: 894 struct foo *foo = xmalloc (sizeof struct bar); and memset (foo, 895 sizeof (struct foo), 0). */ 896#define XZALLOC(TYPE) ((TYPE*) xzalloc (sizeof (TYPE))) 897#define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE))) 898#define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE))) 899 900/* Like asprintf/vasprintf but get an internal_error if the call 901 fails. */ 902extern void xasprintf (char **ret, const char *format, ...) ATTR_FORMAT (printf, 2, 3); 903extern void xvasprintf (char **ret, const char *format, va_list ap) 904 ATTR_FORMAT (printf, 2, 0); 905 906/* Like asprintf and vasprintf, but return the string, throw an error 907 if no memory. */ 908extern char *xstrprintf (const char *format, ...) ATTR_FORMAT (printf, 1, 2); 909extern char *xstrvprintf (const char *format, va_list ap) 910 ATTR_FORMAT (printf, 1, 0); 911 912/* Like snprintf, but throw an error if the output buffer is too small. */ 913extern int xsnprintf (char *str, size_t size, const char *format, ...) 914 ATTR_FORMAT (printf, 3, 4); 915 916extern int parse_escape (char **); 917 918/* Message to be printed before the error message, when an error occurs. */ 919 920extern char *error_pre_print; 921 922/* Message to be printed before the error message, when an error occurs. */ 923 924extern char *quit_pre_print; 925 926/* Message to be printed before the warning message, when a warning occurs. */ 927 928extern char *warning_pre_print; 929 930extern NORETURN void verror (const char *fmt, va_list ap) 931 ATTR_NORETURN ATTR_FORMAT (printf, 1, 0); 932 933extern NORETURN void error (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2); 934 935extern NORETURN void error_stream (struct ui_file *) ATTR_NORETURN; 936 937extern NORETURN void vfatal (const char *fmt, va_list ap) 938 ATTR_NORETURN ATTR_FORMAT (printf, 1, 0); 939 940extern NORETURN void fatal (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2); 941 942extern NORETURN void internal_verror (const char *file, int line, 943 const char *, va_list ap) 944 ATTR_NORETURN ATTR_FORMAT (printf, 3, 0); 945 946extern NORETURN void internal_error (const char *file, int line, 947 const char *, ...) ATTR_NORETURN ATTR_FORMAT (printf, 3, 4); 948 949extern void internal_vwarning (const char *file, int line, 950 const char *, va_list ap) 951 ATTR_FORMAT (printf, 3, 0); 952 953extern void internal_warning (const char *file, int line, 954 const char *, ...) ATTR_FORMAT (printf, 3, 4); 955 956extern NORETURN void nomem (long) ATTR_NORETURN; 957 958extern void warning (const char *, ...) ATTR_FORMAT (printf, 1, 2); 959 960extern void vwarning (const char *, va_list args) ATTR_FORMAT (printf, 1, 0); 961 962/* List of known OS ABIs. If you change this, make sure to update the 963 table in osabi.c. */ 964enum gdb_osabi 965{ 966 GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info. */ 967 968 GDB_OSABI_UNKNOWN = 0, /* keep this zero */ 969 970 GDB_OSABI_SVR4, 971 GDB_OSABI_HURD, 972 GDB_OSABI_SOLARIS, 973 GDB_OSABI_OSF1, 974 GDB_OSABI_LINUX, 975 GDB_OSABI_FREEBSD_AOUT, 976 GDB_OSABI_FREEBSD_ELF, 977 GDB_OSABI_NETBSD_AOUT, 978 GDB_OSABI_NETBSD_ELF, 979 GDB_OSABI_OPENBSD_ELF, 980 GDB_OSABI_WINCE, 981 GDB_OSABI_GO32, 982 GDB_OSABI_IRIX, 983 GDB_OSABI_INTERIX, 984 GDB_OSABI_HPUX_ELF, 985 GDB_OSABI_HPUX_SOM, 986 987 GDB_OSABI_QNXNTO, 988 989 GDB_OSABI_CYGWIN, 990 GDB_OSABI_AIX, 991 992 GDB_OSABI_INVALID /* keep this last */ 993}; 994 995/* Global functions from other, non-gdb GNU thingies. 996 Libiberty thingies are no longer declared here. We include libiberty.h 997 above, instead. */ 998 999/* From other system libraries */ 1000 1001#ifdef HAVE_STDDEF_H 1002#include <stddef.h> 1003#endif 1004 1005#ifdef HAVE_STDLIB_H 1006#include <stdlib.h> 1007#endif 1008#ifndef min 1009#define min(a, b) ((a) < (b) ? (a) : (b)) 1010#endif 1011#ifndef max 1012#define max(a, b) ((a) > (b) ? (a) : (b)) 1013#endif 1014 1015 1016#ifndef atof 1017extern double atof (const char *); /* X3.159-1989 4.10.1.1 */ 1018#endif 1019 1020/* Various possibilities for alloca. */ 1021#ifndef alloca 1022#ifdef __GNUC__ 1023#define alloca __builtin_alloca 1024#else /* Not GNU C */ 1025#ifdef HAVE_ALLOCA_H 1026#include <alloca.h> 1027#else 1028#ifdef _AIX 1029#pragma alloca 1030#else 1031 1032/* We need to be careful not to declare this in a way which conflicts with 1033 bison. Bison never declares it as char *, but under various circumstances 1034 (like __hpux) we need to use void *. */ 1035extern void *alloca (); 1036#endif /* Not _AIX */ 1037#endif /* Not HAVE_ALLOCA_H */ 1038#endif /* Not GNU C */ 1039#endif /* alloca not defined */ 1040 1041/* Dynamic target-system-dependent parameters for GDB. */ 1042#include "gdbarch.h" 1043 1044/* Maximum size of a register. Something small, but large enough for 1045 all known ISAs. If it turns out to be too small, make it bigger. */ 1046 1047enum { MAX_REGISTER_SIZE = 16 }; 1048 1049/* Static target-system-dependent parameters for GDB. */ 1050 1051/* Number of bits in a char or unsigned char for the target machine. 1052 Just like CHAR_BIT in <limits.h> but describes the target machine. */ 1053#if !defined (TARGET_CHAR_BIT) 1054#define TARGET_CHAR_BIT 8 1055#endif 1056 1057/* If we picked up a copy of CHAR_BIT from a configuration file 1058 (which may get it by including <limits.h>) then use it to set 1059 the number of bits in a host char. If not, use the same size 1060 as the target. */ 1061 1062#if defined (CHAR_BIT) 1063#define HOST_CHAR_BIT CHAR_BIT 1064#else 1065#define HOST_CHAR_BIT TARGET_CHAR_BIT 1066#endif 1067 1068/* The bit byte-order has to do just with numbering of bits in 1069 debugging symbols and such. Conceptually, it's quite separate 1070 from byte/word byte order. */ 1071 1072#if !defined (BITS_BIG_ENDIAN) 1073#define BITS_BIG_ENDIAN (gdbarch_byte_order (current_gdbarch) == BFD_ENDIAN_BIG) 1074#endif 1075 1076/* In findvar.c. */ 1077 1078extern LONGEST extract_signed_integer (const gdb_byte *, int); 1079 1080extern ULONGEST extract_unsigned_integer (const gdb_byte *, int); 1081 1082extern int extract_long_unsigned_integer (const gdb_byte *, int, LONGEST *); 1083 1084extern CORE_ADDR extract_typed_address (const gdb_byte *buf, 1085 struct type *type); 1086 1087extern void store_signed_integer (gdb_byte *, int, LONGEST); 1088 1089extern void store_unsigned_integer (gdb_byte *, int, ULONGEST); 1090 1091extern void store_typed_address (gdb_byte *buf, struct type *type, 1092 CORE_ADDR addr); 1093 1094 1095/* From valops.c */ 1096 1097extern int watchdog; 1098 1099/* Hooks for alternate command interfaces. */ 1100 1101/* The name of the interpreter if specified on the command line. */ 1102extern char *interpreter_p; 1103 1104/* If a given interpreter matches INTERPRETER_P then it should update 1105 deprecated_command_loop_hook and deprecated_init_ui_hook with the 1106 per-interpreter implementation. */ 1107/* FIXME: deprecated_command_loop_hook and deprecated_init_ui_hook 1108 should be moved here. */ 1109 1110struct target_waitstatus; 1111struct cmd_list_element; 1112 1113extern void (*deprecated_pre_add_symbol_hook) (const char *); 1114extern void (*deprecated_post_add_symbol_hook) (void); 1115extern void (*selected_frame_level_changed_hook) (int); 1116extern int (*deprecated_ui_loop_hook) (int signo); 1117extern void (*deprecated_init_ui_hook) (char *argv0); 1118extern void (*deprecated_command_loop_hook) (void); 1119extern void (*deprecated_show_load_progress) (const char *section, 1120 unsigned long section_sent, 1121 unsigned long section_size, 1122 unsigned long total_sent, 1123 unsigned long total_size); 1124extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, 1125 int line, int stopline, 1126 int noerror); 1127extern int (*deprecated_query_hook) (const char *, va_list) 1128 ATTRIBUTE_FPTR_PRINTF(1,0); 1129extern void (*deprecated_warning_hook) (const char *, va_list) 1130 ATTRIBUTE_FPTR_PRINTF(1,0); 1131extern void (*deprecated_flush_hook) (struct ui_file * stream); 1132extern void (*deprecated_create_breakpoint_hook) (struct breakpoint * b); 1133extern void (*deprecated_delete_breakpoint_hook) (struct breakpoint * bpt); 1134extern void (*deprecated_modify_breakpoint_hook) (struct breakpoint * bpt); 1135extern void (*deprecated_interactive_hook) (void); 1136extern void (*deprecated_readline_begin_hook) (char *, ...) 1137 ATTRIBUTE_FPTR_PRINTF_1; 1138extern char *(*deprecated_readline_hook) (char *); 1139extern void (*deprecated_readline_end_hook) (void); 1140extern void (*deprecated_register_changed_hook) (int regno); 1141extern void (*deprecated_memory_changed_hook) (CORE_ADDR addr, int len); 1142extern void (*deprecated_context_hook) (int); 1143extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, 1144 struct target_waitstatus * status); 1145 1146extern void (*deprecated_attach_hook) (void); 1147extern void (*deprecated_detach_hook) (void); 1148extern void (*deprecated_call_command_hook) (struct cmd_list_element * c, 1149 char *cmd, int from_tty); 1150 1151extern void (*deprecated_set_hook) (struct cmd_list_element * c); 1152 1153extern void (*deprecated_error_hook) (void); 1154 1155extern void (*deprecated_error_begin_hook) (void); 1156 1157extern int (*deprecated_ui_load_progress_hook) (const char *section, 1158 unsigned long num); 1159 1160 1161/* Inhibit window interface if non-zero. */ 1162 1163extern int use_windows; 1164 1165/* Symbolic definitions of filename-related things. */ 1166/* FIXME, this doesn't work very well if host and executable 1167 filesystems conventions are different. */ 1168 1169#ifdef __MSDOS__ 1170# define CANT_FORK 1171# define GLOBAL_CURDIR 1172# define DIRNAME_SEPARATOR ';' 1173#endif 1174 1175#if !defined (__CYGWIN__) && defined (_WIN32) 1176# define DIRNAME_SEPARATOR ';' 1177#endif 1178 1179#ifndef DIRNAME_SEPARATOR 1180#define DIRNAME_SEPARATOR ':' 1181#endif 1182 1183#ifndef SLASH_STRING 1184#define SLASH_STRING "/" 1185#endif 1186 1187/* Provide default definitions of PIDGET, TIDGET, and MERGEPID. 1188 The name ``TIDGET'' is a historical accident. Many uses of TIDGET 1189 in the code actually refer to a lightweight process id, i.e, 1190 something that can be considered a process id in its own right for 1191 certain purposes. */ 1192 1193#ifndef PIDGET 1194#define PIDGET(PTID) (ptid_get_pid (PTID)) 1195#define TIDGET(PTID) (ptid_get_lwp (PTID)) 1196#define MERGEPID(PID, TID) ptid_build (PID, TID, 0) 1197#endif 1198 1199/* Define well known filenos if the system does not define them. */ 1200#ifndef STDIN_FILENO 1201#define STDIN_FILENO 0 1202#endif 1203#ifndef STDOUT_FILENO 1204#define STDOUT_FILENO 1 1205#endif 1206#ifndef STDERR_FILENO 1207#define STDERR_FILENO 2 1208#endif 1209 1210/* If this definition isn't overridden by the header files, assume 1211 that isatty and fileno exist on this system. */ 1212#ifndef ISATTY 1213#define ISATTY(FP) (isatty (fileno (FP))) 1214#endif 1215 1216/* Ensure that V is aligned to an N byte boundary (B's assumed to be a 1217 power of 2). Round up/down when necessary. Examples of correct 1218 use include: 1219 1220 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment 1221 write_memory (addr, value, len); 1222 addr += len; 1223 1224 and: 1225 1226 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned 1227 write_memory (sp, value, len); 1228 1229 Note that uses such as: 1230 1231 write_memory (addr, value, len); 1232 addr += align_up (len, 8); 1233 1234 and: 1235 1236 sp -= align_up (len, 8); 1237 write_memory (sp, value, len); 1238 1239 are typically not correct as they don't ensure that the address (SP 1240 or ADDR) is correctly aligned (relying on previous alignment to 1241 keep things right). This is also why the methods are called 1242 "align_..." instead of "round_..." as the latter reads better with 1243 this incorrect coding style. */ 1244 1245extern ULONGEST align_up (ULONGEST v, int n); 1246extern ULONGEST align_down (ULONGEST v, int n); 1247 1248/* Allocation and deallocation functions for the libiberty hash table 1249 which use obstacks. */ 1250void *hashtab_obstack_allocate (void *data, size_t size, size_t count); 1251void dummy_obstack_deallocate (void *object, void *data); 1252 1253#endif /* #ifndef DEFS_H */ 1254