gdb/defs.h

   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, 89, 91, 92, 93, 94, 95, 96, 98, 1999
   4    Free Software Foundation, Inc.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 59 Temple Place - Suite 330,
  21    Boston, MA 02111-1307, USA.  */
  22
  23 #ifndef DEFS_H
  24 #define DEFS_H
  25
  26 #include "config.h"             /* Generated by configure */
  27 #include <stdio.h>
  28 #include <errno.h>              /* System call error return status */
  29 #include <limits.h>
  30
  31 #ifdef HAVE_STDDEF_H
  32 #  include <stddef.h>
  33 #else
  34 #  include <sys/types.h>   /* for size_t */
  35 #endif
  36
  37 /* Just in case they're not defined in stdio.h. */
  38
  39 #ifndef SEEK_SET
  40 #define SEEK_SET 0
  41 #endif
  42 #ifndef SEEK_CUR
  43 #define SEEK_CUR 1
  44 #endif
  45
  46 /* First include ansidecl.h so we can use the various macro definitions
  47    here and in all subsequent file inclusions.  */
  48
  49 #include "ansidecl.h"
  50
  51 #ifdef ANSI_PROTOTYPES
  52 #include <stdarg.h>
  53 #else
  54 #include <varargs.h>
  55 #endif
  56
  57 #include "libiberty.h"
  58
  59 /* libiberty.h can't declare this one, but evidently we can.  */
  60 extern char *strsignal PARAMS ((int));
  61
  62 #include "progress.h"
  63
  64 #ifdef USE_MMALLOC
  65 #include "mmalloc.h"
  66 #endif
  67
  68 /* For BFD64 and bfd_vma.  */
  69 #include "bfd.h"
  70
  71 /* An address in the program being debugged.  Host byte order.  Rather
  72    than duplicate all the logic in BFD which figures out what type
  73    this is (long, long long, etc.) and whether it needs to be 64
  74    bits (the host/target interactions are subtle), we just use
  75    bfd_vma.  */
  76
  77 typedef bfd_vma CORE_ADDR;
  78
  79 extern int core_addr_lessthan PARAMS ((CORE_ADDR lhs, CORE_ADDR rhs));
  80 extern int core_addr_greaterthan PARAMS ((CORE_ADDR lhs, CORE_ADDR rhs));
  81
  82
  83 #ifndef min
  84 #define min(a, b) ((a) < (b) ? (a) : (b))
  85 #endif
  86 #ifndef max
  87 #define max(a, b) ((a) > (b) ? (a) : (b))
  88 #endif
  89
  90 /* Gdb does *lots* of string compares.  Use macros to speed them up by
  91    avoiding function calls if the first characters are not the same. */
  92
  93 #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b))
  94 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
  95 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
  96
  97 /* The character GNU C++ uses to build identifiers that must be unique from
  98    the program's identifiers (such as $this and $$vptr).  */
  99 #define CPLUS_MARKER '$'        /* May be overridden to '.' for SysV */
 100
 101 /* Check if a character is one of the commonly used C++ marker characters.  */
 102 extern int is_cplus_marker PARAMS ((int));
 103
 104 /* use tui interface if non-zero */
 105 extern int tui_version;
 106
 107 #if defined(TUI)
 108 /* all invocations of TUIDO should have two sets of parens */
 109 #define TUIDO(x)        tuiDo x
 110 #else
 111 #define TUIDO(x)
 112 #endif
 113
 114 /* enable xdb commands if set */
 115 extern int xdb_commands;
 116
 117 /* enable dbx commands if set */
 118 extern int dbx_commands;
 119
 120 extern int quit_flag;
 121 extern int immediate_quit;
 122 extern int sevenbit_strings;
 123
 124 extern void quit PARAMS ((void));
 125
 126 #ifdef QUIT
 127 /* do twice to force compiler warning */
 128 #define QUIT_FIXME "FIXME"
 129 #define QUIT_FIXME "ignoring redefinition of QUIT"
 130 #else
 131 #define QUIT { \
 132   if (quit_flag) quit (); \
 133   if (interactive_hook) interactive_hook (); \
 134   PROGRESS (1); \
 135 }
 136 #endif
 137
 138 /* Command classes are top-level categories into which commands are broken
 139    down for "help" purposes.
 140    Notes on classes: class_alias is for alias commands which are not
 141    abbreviations of the original command.  class-pseudo is for commands
 142    which are not really commands nor help topics ("stop").  */
 143
 144 enum command_class
 145 {
 146   /* Special args to help_list */
 147   all_classes = -2, all_commands = -1,
 148   /* Classes of commands */
 149   no_class = -1, class_run = 0, class_vars, class_stack,
 150   class_files, class_support, class_info, class_breakpoint, class_trace,
 151   class_alias, class_obscure, class_user, class_maintenance,
 152   class_pseudo, class_tui, class_xdb
 153 };
 154
 155 /* Languages represented in the symbol table and elsewhere.
 156    This should probably be in language.h, but since enum's can't
 157    be forward declared to satisfy opaque references before their
 158    actual definition, needs to be here. */
 159
 160 enum language
 161 {
 162    language_unknown,            /* Language not known */
 163    language_auto,               /* Placeholder for automatic setting */
 164    language_c,                  /* C */
 165    language_cplus,              /* C++ */
 166    language_java,               /* Java */
 167    language_chill,              /* Chill */
 168    language_fortran,            /* Fortran */
 169    language_m2,                 /* Modula-2 */
 170    language_asm,                /* Assembly language */
 171    language_scm                 /* Scheme / Guile */
 172 };
 173
 174 enum precision_type
 175 {
 176   single_precision,
 177   double_precision,
 178   unspecified_precision
 179 };
 180
 181 /* the cleanup list records things that have to be undone
 182    if an error happens (descriptors to be closed, memory to be freed, etc.)
 183    Each link in the chain records a function to call and an
 184    argument to give it.
 185
 186    Use make_cleanup to add an element to the cleanup chain.
 187    Use do_cleanups to do all cleanup actions back to a given
 188    point in the chain.  Use discard_cleanups to remove cleanups
 189    from the chain back to a given point, not doing them.  */
 190
 191 struct cleanup
 192 {
 193   struct cleanup *next;
 194   void (*function) PARAMS ((PTR));
 195   PTR arg;
 196 };
 197
 198
 199 /* The ability to declare that a function never returns is useful, but
 200    not really required to compile GDB successfully, so the NORETURN and
 201    ATTR_NORETURN macros normally expand into nothing.  */
 202
 203 /* If compiling with older versions of GCC, a function may be declared
 204    "volatile" to indicate that it does not return.  */
 205
 206 #ifndef NORETURN
 207 # if defined(__GNUC__) \
 208      && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
 209 #  define NORETURN volatile
 210 # else
 211 #  define NORETURN /* nothing */
 212 # endif
 213 #endif
 214
 215 /* GCC 2.5 and later versions define a function attribute "noreturn",
 216    which is the preferred way to declare that a function never returns.
 217    However GCC 2.7 appears to be the first version in which this fully
 218    works everywhere we use it. */
 219
 220 #ifndef ATTR_NORETURN
 221 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 7
 222 #  define ATTR_NORETURN __attribute__ ((noreturn))
 223 # else
 224 #  define ATTR_NORETURN /* nothing */
 225 # endif
 226 #endif
 227
 228 #ifndef ATTR_FORMAT
 229 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 4 && defined (__ANSI_PROTOTYPES)
 230 #  define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
 231 # else
 232 #  define ATTR_FORMAT(type, x, y) /* nothing */
 233 # endif
 234 #endif
 235
 236 /* Needed for various prototypes */
 237
 238 #ifdef __STDC__
 239 struct symtab;
 240 struct breakpoint;
 241 #endif
 242
 243 /* From blockframe.c */
 244
 245 extern int inside_entry_func PARAMS ((CORE_ADDR));
 246
 247 extern int inside_entry_file PARAMS ((CORE_ADDR addr));
 248
 249 extern int inside_main_func PARAMS ((CORE_ADDR pc));
 250
 251 /* From ch-lang.c, for the moment. (FIXME) */
 252
 253 extern char *chill_demangle PARAMS ((const char *));
 254
 255 /* From utils.c */
 256
 257 extern void initialize_utils PARAMS ((void));
 258
 259 extern void notice_quit PARAMS ((void));
 260
 261 extern int strcmp_iw PARAMS ((const char *, const char *));
 262
 263 extern int subset_compare PARAMS ((char *, char *));
 264
 265 extern char *safe_strerror PARAMS ((int));
 266
 267 extern char *safe_strsignal PARAMS ((int));
 268
 269 extern void init_malloc PARAMS ((void *));
 270
 271 extern void request_quit PARAMS ((int));
 272
 273 extern void do_cleanups PARAMS ((struct cleanup *));
 274 extern void do_final_cleanups PARAMS ((struct cleanup *));
 275 extern void do_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
 276 extern void do_run_cleanups PARAMS ((struct cleanup *));
 277 extern void do_exec_cleanups PARAMS ((struct cleanup *));
 278
 279 extern void discard_cleanups PARAMS ((struct cleanup *));
 280 extern void discard_final_cleanups PARAMS ((struct cleanup *));
 281 extern void discard_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
 282
 283 typedef void (*make_cleanup_func) PARAMS ((void *));
 284
 285 extern struct cleanup *make_cleanup PARAMS ((make_cleanup_func, void *));
 286
 287 extern struct cleanup *make_cleanup_freeargv PARAMS ((char **));
 288
 289 extern struct cleanup *make_final_cleanup PARAMS ((make_cleanup_func, void *));
 290
 291 extern struct cleanup *make_my_cleanup PARAMS ((struct cleanup **,
 292                                                 make_cleanup_func, void *));
 293
 294 extern struct cleanup *make_run_cleanup PARAMS ((make_cleanup_func, void *));
 295
 296 extern struct cleanup *make_exec_cleanup PARAMS ((make_cleanup_func, void *));
 297
 298 extern struct cleanup *save_cleanups PARAMS ((void));
 299 extern struct cleanup *save_final_cleanups PARAMS ((void));
 300 extern struct cleanup *save_my_cleanups PARAMS ((struct cleanup **));
 301
 302 extern void restore_cleanups PARAMS ((struct cleanup *));
 303 extern void restore_final_cleanups PARAMS ((struct cleanup *));
 304 extern void restore_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
 305
 306 extern void free_current_contents PARAMS ((char **));
 307
 308 extern void null_cleanup PARAMS ((PTR));
 309
 310 extern int myread PARAMS ((int, char *, int));
 311
 312 extern int query PARAMS((char *, ...))
 313      ATTR_FORMAT(printf, 1, 2);
 314
 315 #if !defined (USE_MMALLOC)
 316 extern PTR mmalloc PARAMS ((PTR, size_t));
 317 extern PTR mrealloc PARAMS ((PTR, PTR, size_t));
 318 extern void mfree PARAMS ((PTR, PTR));
 319 #endif
 320
 321 extern void init_page_info PARAMS ((void));
 322
 323 /* From demangle.c */
 324
 325 extern void set_demangling_style PARAMS ((char *));
 326
 327 /* From tm.h */
 328
 329 struct type;
 330 typedef int (use_struct_convention_fn) PARAMS ((int gcc_p, struct type *value_type));
 331 extern use_struct_convention_fn generic_use_struct_convention;
 332
 333 typedef unsigned char *(breakpoint_from_pc_fn) PARAMS ((CORE_ADDR *pcptr, int *lenptr));
 334
 335
 336 \f
 337 /* Annotation stuff.  */
 338
 339 extern int annotation_level; /* in stack.c */
 340 \f
 341 extern void begin_line PARAMS ((void));
 342
 343 extern void wrap_here PARAMS ((char *));
 344
 345 extern void reinitialize_more_filter PARAMS ((void));
 346
 347 /* new */
 348 enum streamtype
 349 {
 350   afile,
 351   astring
 352 };
 353
 354 /* new */
 355 struct tui_stream
 356 {
 357   int *ts_magic;
 358   enum streamtype ts_streamtype;
 359   FILE *ts_filestream;
 360   char *ts_strbuf;
 361   int ts_buflen;
 362 };
 363
 364 struct gdb_file;
 365 typedef struct gdb_file GDB_FILE; /* deprecated */
 366
 367 /* Normal results */
 368 extern GDB_FILE *gdb_stdout;
 369 /* Serious error notifications */
 370 extern GDB_FILE *gdb_stderr;
 371 /* Log/debug/trace messages that should bypass normal stdout/stderr
 372    filtering.  For momement, always call this stream using
 373    *_unfiltered. In the very near future that restriction shall be
 374    removed - either call shall be unfiltered. (cagney 1999-06-13). */
 375 extern GDB_FILE *gdb_stdlog;
 376 /* Target output that should bypass normal stdout/stderr filtering.
 377    For momement, always call this stream using *_unfiltered. In the
 378    very near future that restriction shall be removed - either call
 379    shall be unfiltered. (cagney 1999-07-02). */
 380 extern GDB_FILE *gdb_stdtarg;
 381
 382 #if defined(TUI)
 383 #include "tui.h"
 384 #include "tuiCommand.h"
 385 #include "tuiData.h"
 386 #include "tuiIO.h"
 387 #include "tuiLayout.h"
 388 #include "tuiWin.h"
 389 #endif
 390
 391 /* Create a new gdb_file with the specified methods. */
 392
 393 typedef void (gdb_file_flush_ftype) PARAMS ((struct gdb_file *stream));
 394 extern void set_gdb_file_flush PARAMS ((struct gdb_file *stream, gdb_file_flush_ftype *flush));
 395
 396 typedef void (gdb_file_fputs_ftype) PARAMS ((const char *, struct gdb_file *stream));
 397 extern void set_gdb_file_fputs PARAMS ((struct gdb_file *stream, gdb_file_fputs_ftype *fputs));
 398
 399 typedef int (gdb_file_isatty_ftype) PARAMS ((struct gdb_file *stream));
 400 extern void set_gdb_file_isatty PARAMS ((struct gdb_file *stream, gdb_file_isatty_ftype *isatty));
 401
 402 typedef void (gdb_file_rewind_ftype) PARAMS ((struct gdb_file *stream));
 403 extern void set_gdb_file_rewind PARAMS ((struct gdb_file *stream, gdb_file_rewind_ftype *rewind));
 404
 405 typedef void (gdb_file_put_ftype) PARAMS ((struct gdb_file *stream, struct gdb_file *dest));
 406 extern void set_gdb_file_put PARAMS ((struct gdb_file *stream, gdb_file_put_ftype *put));
 407
 408 typedef void (gdb_file_delete_ftype) PARAMS ((struct gdb_file *stream));
 409 extern void set_gdb_file_data PARAMS ((struct gdb_file *stream, void *data, gdb_file_delete_ftype *delete));
 410
 411 extern struct gdb_file *gdb_file_new PARAMS ((void));
 412
 413 extern void gdb_file_delete PARAMS ((struct gdb_file *stream));
 414
 415 extern void gdb_file_rewind PARAMS ((struct gdb_file *stream));
 416
 417 /* NOTE: copies left to right */
 418 extern void gdb_file_put PARAMS ((struct gdb_file *src, struct gdb_file *dest));
 419
 420 extern void *gdb_file_data PARAMS ((struct gdb_file *file));
 421
 422 /* Open the specified FILE as a gdb_file. */
 423 extern struct gdb_file *stdio_fileopen PARAMS ((FILE *));
 424 /* #if defined (TUI) */
 425 extern struct gdb_file *tui_fileopen PARAMS ((FILE *));
 426 /* #endif */
 427
 428 /* deprecated - use gdb_file_delete */
 429 extern void gdb_fclose PARAMS ((GDB_FILE **));
 430
 431 extern void gdb_flush PARAMS ((GDB_FILE *));
 432
 433 extern GDB_FILE *gdb_fopen PARAMS ((char * name, char * mode));
 434
 435 extern void fputs_filtered PARAMS ((const char *, GDB_FILE *));
 436
 437 extern void fputs_unfiltered PARAMS ((const char *, GDB_FILE *));
 438
 439 extern int fputc_filtered PARAMS ((int c, GDB_FILE *));
 440
 441 extern int fputc_unfiltered PARAMS ((int c, GDB_FILE *));
 442
 443 extern int putchar_unfiltered PARAMS ((int c));
 444
 445 extern void puts_filtered PARAMS ((const char *));
 446
 447 extern void puts_unfiltered PARAMS ((const char *));
 448
 449 extern void puts_debug PARAMS ((char *prefix, char *string, char *suffix));
 450
 451 extern void vprintf_filtered PARAMS ((const char *, va_list))
 452      ATTR_FORMAT(printf, 1, 0);
 453
 454 extern void vfprintf_filtered PARAMS ((GDB_FILE *, const char *, va_list))
 455      ATTR_FORMAT(printf, 2, 0);
 456
 457 extern void fprintf_filtered PARAMS ((GDB_FILE *, const char *, ...))
 458      ATTR_FORMAT(printf, 2, 3);
 459
 460 extern void fprintfi_filtered PARAMS ((int, GDB_FILE *, const char *, ...))
 461      ATTR_FORMAT(printf, 3, 4);
 462
 463 extern void printf_filtered PARAMS ((const char *, ...))
 464      ATTR_FORMAT(printf, 1, 2);
 465
 466 extern void printfi_filtered PARAMS ((int, const char *, ...))
 467      ATTR_FORMAT(printf, 2, 3);
 468
 469 extern void vprintf_unfiltered PARAMS ((const char *, va_list))
 470      ATTR_FORMAT(printf, 1, 0);
 471
 472 extern void vfprintf_unfiltered PARAMS ((GDB_FILE *, const char *, va_list))
 473      ATTR_FORMAT(printf, 2, 0);
 474
 475 extern void fprintf_unfiltered PARAMS ((GDB_FILE *, const char *, ...))
 476      ATTR_FORMAT(printf, 2, 3);
 477
 478 extern void printf_unfiltered PARAMS ((const char *, ...))
 479      ATTR_FORMAT(printf, 1, 2);
 480
 481 extern int gdb_file_isatty PARAMS ((GDB_FILE *));
 482
 483 /* #if defined (TUI) */
 484 extern GDB_FILE *gdb_file_init_astring PARAMS ((int));
 485 /* #endif */
 486
 487 extern void gdb_file_deallocate PARAMS ((GDB_FILE **));
 488
 489 /* #if defined (TUI) */
 490 extern char *gdb_file_get_strbuf PARAMS ((GDB_FILE *));
 491 /* #endif */
 492
 493 /* #if defined (TUI) */
 494 extern void gdb_file_adjust_strbuf PARAMS ((int, GDB_FILE *));
 495 /* #endif */
 496
 497 extern void print_spaces PARAMS ((int, GDB_FILE *));
 498
 499 extern void print_spaces_filtered PARAMS ((int, GDB_FILE *));
 500
 501 extern char *n_spaces PARAMS ((int));
 502
 503 extern void gdb_printchar PARAMS ((int, GDB_FILE *, int));
 504
 505 extern void gdb_print_address PARAMS ((void *, GDB_FILE *));
 506
 507 typedef bfd_vma t_addr;
 508 typedef bfd_vma t_reg;
 509 extern char* paddr PARAMS ((t_addr addr));
 510
 511 extern char* preg PARAMS ((t_reg reg));
 512
 513 extern char* paddr_nz PARAMS ((t_addr addr));
 514
 515 extern char* preg_nz PARAMS ((t_reg reg));
 516
 517 extern void fprintf_symbol_filtered PARAMS ((GDB_FILE *, char *,
 518                                              enum language, int));
 519
 520 extern NORETURN void perror_with_name PARAMS ((char *)) ATTR_NORETURN;
 521
 522 extern void print_sys_errmsg PARAMS ((char *, int));
 523
 524 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
 525    "const char *" in unistd.h, so we can't declare the argument
 526    as "char *".  */
 527
 528 extern char *re_comp PARAMS ((const char *));
 529
 530 /* From symfile.c */
 531
 532 extern void symbol_file_command PARAMS ((char *, int));
 533
 534 /* From top.c */
 535
 536 extern char *skip_quoted PARAMS ((char *));
 537
 538 extern char *gdb_readline PARAMS ((char *));
 539
 540 extern char *command_line_input PARAMS ((char *, int, char *));
 541
 542 extern void print_prompt PARAMS ((void));
 543
 544 extern int input_from_terminal_p PARAMS ((void));
 545
 546 extern int info_verbose;
 547
 548 /* From printcmd.c */
 549
 550 extern void set_next_address PARAMS ((CORE_ADDR));
 551
 552 extern void print_address_symbolic PARAMS ((CORE_ADDR, GDB_FILE *, int,
 553                                             char *));
 554
 555 extern void print_address_numeric PARAMS ((CORE_ADDR, int, GDB_FILE *));
 556
 557 extern void print_address PARAMS ((CORE_ADDR, GDB_FILE *));
 558
 559 /* From source.c */
 560
 561 extern int openp PARAMS ((char *, int, char *, int, int, char **));
 562
 563 extern int source_full_path_of PARAMS ((char *, char **));
 564
 565 extern void mod_path PARAMS ((char *, char **));
 566
 567 extern void directory_command PARAMS ((char *, int));
 568
 569 extern void init_source_path PARAMS ((void));
 570
 571 extern char *symtab_to_filename PARAMS ((struct symtab *));
 572
 573 /* From findvar.c */
 574
 575 extern int read_relative_register_raw_bytes PARAMS ((int, char *));
 576
 577 #if __STDC__
 578 enum lval_type;
 579 struct frame_info;
 580 #endif
 581 void default_get_saved_register PARAMS ((char *raw_buffer, int *optimized,
 582                                          CORE_ADDR *addrp,
 583                                          struct frame_info *frame, int regnum,
 584                                          enum lval_type *lval));
 585
 586 /* From readline (but not in any readline .h files).  */
 587
 588 extern char *tilde_expand PARAMS ((char *));
 589
 590 /* Control types for commands */
 591
 592 enum misc_command_type
 593 {
 594   ok_command,
 595   end_command,
 596   else_command,
 597   nop_command
 598 };
 599
 600 enum command_control_type
 601 {
 602   simple_control,
 603   break_control,
 604   continue_control,
 605   while_control,
 606   if_control,
 607   invalid_control
 608 };
 609
 610 /* Structure for saved commands lines
 611    (for breakpoints, defined commands, etc).  */
 612
 613 struct command_line
 614 {
 615   struct command_line *next;
 616   char *line;
 617   enum command_control_type control_type;
 618   int body_count;
 619   struct command_line **body_list;
 620 };
 621
 622 extern struct command_line *read_command_lines PARAMS ((char *, int));
 623
 624 extern void free_command_lines PARAMS ((struct command_line **));
 625
 626 /* To continue the execution commands when running gdb asynchronously.
 627    A continuation structure contains a pointer to a function to be called
 628    to finish the command, once the target has stopped. Such mechanism is
 629    used bt the finish and until commands, and in the remote protocol
 630    when opening an extended-remote connection. */
 631
 632 struct continuation_arg
 633 {
 634   struct continuation_arg *next;
 635   PTR data;
 636 };
 637
 638 struct continuation
 639 {
 640   void (*continuation_hook) PARAMS ((struct continuation_arg *));
 641   struct continuation_arg *arg_list;
 642   struct continuation *next;
 643 }
 644 continuation;
 645
 646 /* In infrun.c. */
 647 extern struct continuation *cmd_continuation;
 648
 649 /* From utils.c */
 650 void add_continuation PARAMS ((void (*) PARAMS ((struct continuation_arg *)),
 651                                struct continuation_arg *));
 652 void do_all_continuations PARAMS ((void));
 653
 654 /* String containing the current directory (what getwd would return).  */
 655
 656 extern char *current_directory;
 657
 658 /* Default radixes for input and output.  Only some values supported.  */
 659 extern unsigned input_radix;
 660 extern unsigned output_radix;
 661
 662 /* Possibilities for prettyprint parameters to routines which print
 663    things.  Like enum language, this should be in value.h, but needs
 664    to be here for the same reason.  FIXME:  If we can eliminate this
 665    as an arg to LA_VAL_PRINT, then we can probably move it back to
 666    value.h. */
 667
 668 enum val_prettyprint
 669 {
 670   Val_no_prettyprint = 0,
 671   Val_prettyprint,
 672   /* Use the default setting which the user has specified.  */
 673   Val_pretty_default
 674 };
 675
 676 \f
 677 /* Host machine definition.  This will be a symlink to one of the
 678    xm-*.h files, built by the `configure' script.  */
 679
 680 #include "xm.h"
 681
 682 /* Native machine support.  This will be a symlink to one of the
 683    nm-*.h files, built by the `configure' script.  */
 684
 685 #include "nm.h"
 686
 687 /* Target machine definition.  This will be a symlink to one of the
 688    tm-*.h files, built by the `configure' script.  */
 689
 690 #include "tm.h"
 691
 692 /* If the xm.h file did not define the mode string used to open the
 693    files, assume that binary files are opened the same way as text
 694    files */
 695 #ifndef FOPEN_RB
 696 #include "fopen-same.h"
 697 #endif
 698
 699 /* Microsoft C can't deal with const pointers */
 700
 701 #ifdef _MSC_VER
 702 #define CONST_PTR
 703 #else
 704 #define CONST_PTR const
 705 #endif
 706
 707 /*
 708  * Allow things in gdb to be declared "volatile".  If compiling ANSI, it
 709  * just works.  If compiling with gcc but non-ansi, redefine to __volatile__.
 710  * If non-ansi, non-gcc, then eliminate "volatile" entirely, making those
 711  * objects be read-write rather than read-only.
 712  */
 713
 714 #ifndef volatile
 715 #ifndef __STDC__
 716 # ifdef __GNUC__
 717 #  define volatile __volatile__
 718 # else
 719 #  define volatile /*nothing*/
 720 # endif /* GNUC */
 721 #endif /* STDC */
 722 #endif /* volatile */
 723
 724 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 725    FIXME: Assumes 2's complement arithmetic */
 726
 727 #if !defined (UINT_MAX)
 728 #define UINT_MAX ((unsigned int)(~0))           /* 0xFFFFFFFF for 32-bits */
 729 #endif
 730
 731 #if !defined (INT_MAX)
 732 #define INT_MAX ((int)(UINT_MAX >> 1))          /* 0x7FFFFFFF for 32-bits */
 733 #endif
 734
 735 #if !defined (INT_MIN)
 736 #define INT_MIN ((int)((int) ~0 ^ INT_MAX))     /* 0x80000000 for 32-bits */
 737 #endif
 738
 739 #if !defined (ULONG_MAX)
 740 #define ULONG_MAX ((unsigned long)(~0L))        /* 0xFFFFFFFF for 32-bits */
 741 #endif
 742
 743 #if !defined (LONG_MAX)
 744 #define LONG_MAX ((long)(ULONG_MAX >> 1))       /* 0x7FFFFFFF for 32-bits */
 745 #endif
 746
 747 #ifndef LONGEST
 748
 749 #ifdef BFD64
 750
 751 /* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
 752
 753 #define LONGEST BFD_HOST_64_BIT
 754 #define ULONGEST BFD_HOST_U_64_BIT
 755
 756 #else /* No BFD64 */
 757
 758 #  ifdef CC_HAS_LONG_LONG
 759 #    define LONGEST long long
 760 #    define ULONGEST unsigned long long
 761 #  else
 762 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
 763    (e.g. i386-windows) so try it.  */
 764 #    ifdef BFD_HOST_64_BIT
 765 #      define LONGEST BFD_HOST_64_BIT
 766 #      define ULONGEST BFD_HOST_U_64_BIT
 767 #    else
 768 #      define LONGEST long
 769 #      define ULONGEST unsigned long
 770 #    endif
 771 #  endif
 772
 773 #endif /* No BFD64 */
 774
 775 #endif /* ! LONGEST */
 776
 777 /* Convert a LONGEST to an int.  This is used in contexts (e.g. number of
 778    arguments to a function, number in a value history, register number, etc.)
 779    where the value must not be larger than can fit in an int.  */
 780
 781 extern int longest_to_int PARAMS ((LONGEST));
 782
 783 /* Assorted functions we can declare, now that const and volatile are
 784    defined.  */
 785
 786 extern char *savestring PARAMS ((const char *, int));
 787
 788 extern char *msavestring PARAMS ((void *, const char *, int));
 789
 790 extern char *strsave PARAMS ((const char *));
 791
 792 extern char *mstrsave PARAMS ((void *, const char *));
 793
 794 #ifdef _MSC_VER /* FIXME; was long, but this causes compile errors in msvc if already defined */
 795 extern PTR xmmalloc PARAMS ((PTR, size_t));
 796
 797 extern PTR xmrealloc PARAMS ((PTR, PTR, size_t));
 798 #else
 799 extern PTR xmmalloc PARAMS ((PTR, long));
 800
 801 extern PTR xmrealloc PARAMS ((PTR, PTR, long));
 802 #endif
 803
 804 extern int parse_escape PARAMS ((char **));
 805
 806 /* Message to be printed before the error message, when an error occurs.  */
 807
 808 extern char *error_pre_print;
 809
 810 /* Message to be printed before the error message, when an error occurs.  */
 811
 812 extern char *quit_pre_print;
 813
 814 /* Message to be printed before the warning message, when a warning occurs.  */
 815
 816 extern char *warning_pre_print;
 817
 818 extern NORETURN void error PARAMS((const char *, ...)) ATTR_NORETURN;
 819
 820 extern void error_begin PARAMS ((void));
 821
 822 extern NORETURN void fatal PARAMS((char *, ...)) ATTR_NORETURN;
 823
 824 extern NORETURN void nomem PARAMS ((long)) ATTR_NORETURN;
 825
 826 /* Reasons for calling return_to_top_level.  */
 827 enum return_reason {
 828   /* User interrupt.  */
 829   RETURN_QUIT,
 830
 831   /* Any other error.  */
 832   RETURN_ERROR
 833 };
 834
 835 #define ALL_CLEANUPS    ((struct cleanup *)0)
 836
 837 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
 838 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
 839 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
 840 typedef int return_mask;
 841
 842 extern NORETURN void
 843 return_to_top_level PARAMS ((enum return_reason)) ATTR_NORETURN;
 844
 845 typedef int (catch_errors_ftype) PARAMS ((PTR));
 846 extern int catch_errors PARAMS ((catch_errors_ftype *, PTR, char *, return_mask));
 847
 848 extern void warning_begin PARAMS ((void));
 849
 850 extern void warning PARAMS ((const char *, ...))
 851      ATTR_FORMAT(printf, 1, 2);
 852
 853 /* Global functions from other, non-gdb GNU thingies.
 854    Libiberty thingies are no longer declared here.  We include libiberty.h
 855    above, instead.  */
 856
 857 #ifndef GETENV_PROVIDED
 858 extern char *getenv PARAMS ((const char *));
 859 #endif
 860
 861 /* From other system libraries */
 862
 863 #ifdef HAVE_STDDEF_H
 864 #include <stddef.h>
 865 #endif
 866
 867 #ifdef HAVE_STDLIB_H
 868 #if defined(_MSC_VER) && !defined(__cplusplus)
 869 /* msvc defines these in stdlib.h for c code */
 870 #undef min
 871 #undef max
 872 #endif
 873 #include <stdlib.h>
 874 #endif
 875 #ifndef min
 876 #define min(a, b) ((a) < (b) ? (a) : (b))
 877 #endif
 878 #ifndef max
 879 #define max(a, b) ((a) > (b) ? (a) : (b))
 880 #endif
 881
 882
 883 /* We take the address of fclose later, but some stdio's forget
 884    to declare this.  We can't always declare it since there's
 885    no way to declare the parameters without upsetting some compiler
 886    somewhere. */
 887
 888 #ifndef FCLOSE_PROVIDED
 889 extern int fclose PARAMS ((FILE *));
 890 #endif
 891
 892 #ifndef atof
 893 extern double atof PARAMS ((const char *));     /* X3.159-1989  4.10.1.1 */
 894 #endif
 895
 896 #ifndef MALLOC_INCOMPATIBLE
 897
 898 #ifdef NEED_DECLARATION_MALLOC
 899 extern PTR malloc ();
 900 #endif
 901
 902 #ifdef NEED_DECLARATION_REALLOC
 903 extern PTR realloc ();
 904 #endif
 905
 906 #ifdef NEED_DECLARATION_FREE
 907 extern void free ();
 908 #endif
 909
 910 #endif /* MALLOC_INCOMPATIBLE */
 911
 912 /* Various possibilities for alloca.  */
 913 #ifndef alloca
 914 # ifdef __GNUC__
 915 #  define alloca __builtin_alloca
 916 # else /* Not GNU C */
 917 #  ifdef HAVE_ALLOCA_H
 918 #   include <alloca.h>
 919 #  else
 920 #   ifdef _AIX
 921  #pragma alloca
 922 #   else
 923
 924 /* We need to be careful not to declare this in a way which conflicts with
 925    bison.  Bison never declares it as char *, but under various circumstances
 926    (like __hpux) we need to use void *.  */
 927 #    if defined (__STDC__) || defined (__hpux)
 928    extern void *alloca ();
 929 #    else /* Don't use void *.  */
 930    extern char *alloca ();
 931 #    endif /* Don't use void *.  */
 932 #   endif /* Not _AIX */
 933 #  endif /* Not HAVE_ALLOCA_H */
 934 # endif /* Not GNU C */
 935 #endif /* alloca not defined */
 936
 937 /* HOST_BYTE_ORDER must be defined to one of these.  */
 938
 939 #ifdef HAVE_ENDIAN_H
 940 #include <endian.h>
 941 #endif
 942
 943 #if !defined (BIG_ENDIAN)
 944 #define BIG_ENDIAN 4321
 945 #endif
 946
 947 #if !defined (LITTLE_ENDIAN)
 948 #define LITTLE_ENDIAN 1234
 949 #endif
 950
 951 /* Dynamic target-system-dependent parameters for GDB. */
 952 #include "gdbarch.h"
 953
 954 /* Static target-system-dependent parameters for GDB. */
 955
 956 /* Number of bits in a char or unsigned char for the target machine.
 957    Just like CHAR_BIT in <limits.h> but describes the target machine.  */
 958 #if !defined (TARGET_CHAR_BIT)
 959 #define TARGET_CHAR_BIT 8
 960 #endif
 961
 962 /* Number of bits in a short or unsigned short for the target machine. */
 963 #if !defined (TARGET_SHORT_BIT)
 964 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
 965 #endif
 966
 967 /* Number of bits in an int or unsigned int for the target machine. */
 968 #if !defined (TARGET_INT_BIT)
 969 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
 970 #endif
 971
 972 /* Number of bits in a long or unsigned long for the target machine. */
 973 #if !defined (TARGET_LONG_BIT)
 974 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
 975 #endif
 976
 977 /* Number of bits in a long long or unsigned long long for the target machine. */
 978 #if !defined (TARGET_LONG_LONG_BIT)
 979 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
 980 #endif
 981
 982 /* Number of bits in a float for the target machine. */
 983 #if !defined (TARGET_FLOAT_BIT)
 984 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
 985 #endif
 986
 987 /* Number of bits in a double for the target machine. */
 988 #if !defined (TARGET_DOUBLE_BIT)
 989 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
 990 #endif
 991
 992 /* Number of bits in a long double for the target machine.  */
 993 #if !defined (TARGET_LONG_DOUBLE_BIT)
 994 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
 995 #endif
 996
 997 /* Number of bits in a pointer for the target machine */
 998 #if !defined (TARGET_PTR_BIT)
 999 #define TARGET_PTR_BIT TARGET_INT_BIT
1000 #endif
1001
1002 /* If we picked up a copy of CHAR_BIT from a configuration file
1003    (which may get it by including <limits.h>) then use it to set
1004    the number of bits in a host char.  If not, use the same size
1005    as the target. */
1006
1007 #if defined (CHAR_BIT)
1008 #define HOST_CHAR_BIT CHAR_BIT
1009 #else
1010 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1011 #endif
1012
1013 /* The bit byte-order has to do just with numbering of bits in
1014    debugging symbols and such.  Conceptually, it's quite separate
1015    from byte/word byte order.  */
1016
1017 #if !defined (BITS_BIG_ENDIAN)
1018 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
1019 #endif
1020
1021 /* In findvar.c.  */
1022
1023 extern LONGEST extract_signed_integer PARAMS ((void *, int));
1024
1025 extern ULONGEST extract_unsigned_integer PARAMS ((void *, int));
1026
1027 extern int extract_long_unsigned_integer PARAMS ((void *, int, LONGEST *));
1028
1029 extern CORE_ADDR extract_address PARAMS ((void *, int));
1030
1031 extern void store_signed_integer PARAMS ((PTR, int, LONGEST));
1032
1033 extern void store_unsigned_integer PARAMS ((PTR, int, ULONGEST));
1034
1035 extern void store_address PARAMS ((PTR, int, LONGEST));
1036
1037 /* Setup definitions for host and target floating point formats.  We need to
1038    consider the format for `float', `double', and `long double' for both target
1039    and host.  We need to do this so that we know what kind of conversions need
1040    to be done when converting target numbers to and from the hosts DOUBLEST
1041    data type.  */
1042
1043 /* This is used to indicate that we don't know the format of the floating point
1044    number.  Typically, this is useful for native ports, where the actual format
1045    is irrelevant, since no conversions will be taking place.  */
1046
1047 extern const struct floatformat floatformat_unknown;
1048
1049 #if HOST_BYTE_ORDER == BIG_ENDIAN
1050 #  ifndef HOST_FLOAT_FORMAT
1051 #    define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
1052 #  endif
1053 #  ifndef HOST_DOUBLE_FORMAT
1054 #    define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
1055 #  endif
1056 #else                           /* LITTLE_ENDIAN */
1057 #  ifndef HOST_FLOAT_FORMAT
1058 #    define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
1059 #  endif
1060 #  ifndef HOST_DOUBLE_FORMAT
1061 #    define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
1062 #  endif
1063 #endif
1064
1065 #ifndef HOST_LONG_DOUBLE_FORMAT
1066 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
1067 #endif
1068
1069 #ifndef TARGET_FLOAT_FORMAT
1070 #define TARGET_FLOAT_FORMAT (TARGET_BYTE_ORDER == BIG_ENDIAN \
1071                              ? &floatformat_ieee_single_big \
1072                              : &floatformat_ieee_single_little)
1073 #endif
1074 #ifndef TARGET_DOUBLE_FORMAT
1075 #define TARGET_DOUBLE_FORMAT (TARGET_BYTE_ORDER == BIG_ENDIAN \
1076                               ? &floatformat_ieee_double_big \
1077                               : &floatformat_ieee_double_little)
1078 #endif
1079
1080 #ifndef TARGET_LONG_DOUBLE_FORMAT
1081 #  define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
1082 #endif
1083
1084 /* Use `long double' if the host compiler supports it.  (Note that this is not
1085    necessarily any longer than `double'.  On SunOS/gcc, it's the same as
1086    double.)  This is necessary because GDB internally converts all floating
1087    point values to the widest type supported by the host.
1088
1089    There are problems however, when the target `long double' is longer than the
1090    host's `long double'.  In general, we'll probably reduce the precision of
1091    any such values and print a warning.  */
1092
1093 #ifdef HAVE_LONG_DOUBLE
1094 typedef long double DOUBLEST;
1095 #else
1096 typedef double DOUBLEST;
1097 #endif
1098
1099 extern void floatformat_to_doublest PARAMS ((const struct floatformat *,
1100                                              char *, DOUBLEST *));
1101 extern void floatformat_from_doublest PARAMS ((const struct floatformat *,
1102                                                DOUBLEST *, char *));
1103 extern DOUBLEST extract_floating PARAMS ((void *, int));
1104
1105 extern void store_floating PARAMS ((void *, int, DOUBLEST));
1106 \f
1107 /* On some machines there are bits in addresses which are not really
1108    part of the address, but are used by the kernel, the hardware, etc.
1109    for special purposes.  ADDR_BITS_REMOVE takes out any such bits
1110    so we get a "real" address such as one would find in a symbol
1111    table.  This is used only for addresses of instructions, and even then
1112    I'm not sure it's used in all contexts.  It exists to deal with there
1113    being a few stray bits in the PC which would mislead us, not as some sort
1114    of generic thing to handle alignment or segmentation (it's possible it
1115    should be in TARGET_READ_PC instead). */
1116 #if !defined (ADDR_BITS_REMOVE)
1117 #define ADDR_BITS_REMOVE(addr) (addr)
1118 #endif /* No ADDR_BITS_REMOVE.  */
1119
1120 /* From valops.c */
1121
1122 extern CORE_ADDR push_bytes PARAMS ((CORE_ADDR, char *, int));
1123
1124 extern CORE_ADDR push_word PARAMS ((CORE_ADDR, ULONGEST));
1125
1126 extern int watchdog;
1127
1128 /* Hooks for alternate command interfaces.  */
1129 #ifdef __STDC__
1130 struct target_waitstatus;
1131 struct cmd_list_element;
1132 #endif
1133
1134 /* Should the asynchronous variant of the interpreter (using the
1135    event-loop) be enabled? */
1136 extern int async_p;
1137
1138 extern void (*init_ui_hook) PARAMS ((char *argv0));
1139 extern void (*command_loop_hook) PARAMS ((void));
1140 extern void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer,
1141                                               GDB_FILE *stream));
1142 extern void (*print_frame_info_listing_hook) PARAMS ((struct symtab *s,
1143                                                       int line, int stopline,
1144                                                       int noerror));
1145 extern struct frame_info *parse_frame_specification PARAMS ((char *frame_exp));
1146 extern int  (*query_hook) PARAMS ((const char *, va_list));
1147 extern void (*warning_hook) PARAMS ((const char *, va_list));
1148 extern void (*flush_hook) PARAMS ((GDB_FILE *stream));
1149 extern void (*create_breakpoint_hook) PARAMS ((struct breakpoint *b));
1150 extern void (*delete_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
1151 extern void (*modify_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
1152 extern void (*interactive_hook) PARAMS ((void));
1153 extern void (*registers_changed_hook) PARAMS ((void));
1154 extern void (*readline_begin_hook) PARAMS ((char *, ...));
1155 extern char * (*readline_hook) PARAMS ((char *));
1156 extern void (*readline_end_hook) PARAMS ((void));
1157 extern void (*register_changed_hook) PARAMS ((int regno));
1158 extern void (*memory_changed_hook) PARAMS ((CORE_ADDR addr, int len));
1159 extern void (*context_hook) PARAMS ((int));
1160 extern int (*target_wait_hook) PARAMS ((int pid,
1161                                         struct target_waitstatus *status));
1162
1163 extern void (*call_command_hook) PARAMS ((struct cmd_list_element *c,
1164                                           char *cmd, int from_tty));
1165
1166 extern NORETURN void (*error_hook) PARAMS ((void)) ATTR_NORETURN;
1167
1168 extern void (*error_begin_hook) PARAMS ((void));
1169
1170
1171 /* Inhibit window interface if non-zero. */
1172
1173 extern int use_windows;
1174
1175 /* Symbolic definitions of filename-related things.  */
1176 /* FIXME, this doesn't work very well if host and executable
1177    filesystems conventions are different.  */
1178
1179 #ifndef DIRNAME_SEPARATOR
1180 #define DIRNAME_SEPARATOR ':'
1181 #endif
1182
1183 #ifndef SLASH_P
1184 #if defined(__GO32__)||defined(_WIN32)
1185 #define SLASH_P(X) ((X)=='\\')
1186 #else
1187 #define SLASH_P(X) ((X)=='/')
1188 #endif
1189 #endif
1190
1191 #ifndef SLASH_CHAR
1192 #if defined(__GO32__)||defined(_WIN32)
1193 #define SLASH_CHAR '\\'
1194 #else
1195 #define SLASH_CHAR '/'
1196 #endif
1197 #endif
1198
1199 #ifndef SLASH_STRING
1200 #if defined(__GO32__)||defined(_WIN32)
1201 #define SLASH_STRING "\\"
1202 #else
1203 #define SLASH_STRING "/"
1204 #endif
1205 #endif
1206
1207 #ifndef ROOTED_P
1208 #define ROOTED_P(X) (SLASH_P((X)[0]))
1209 #endif
1210
1211 /* On some systems, PIDGET is defined to extract the inferior pid from
1212    an internal pid that has the thread id and pid in seperate bit
1213    fields.  If not defined, then just use the entire internal pid as
1214    the actual pid. */
1215
1216 #ifndef PIDGET
1217 #define PIDGET(pid) (pid)
1218 #endif
1219
1220 /* If under Cygwin, provide backwards compatibility with older
1221    Cygwin compilers that don't define the current cpp define. */
1222 #ifdef __CYGWIN32__
1223 #ifndef __CYGWIN__
1224 #define __CYGWIN__
1225 #endif
1226 #endif
1227
1228 #endif /* #ifndef DEFS_H */