| 1 | /* Basic, host-specific, and target-specific definitions for GDB. |
| 2 | Copyright (C) 1986, 1989, 1991, 1992, 1993, 1994 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 20 | |
| 21 | #if !defined (DEFS_H) |
| 22 | #define DEFS_H 1 |
| 23 | |
| 24 | #include <stdio.h> |
| 25 | |
| 26 | /* First include ansidecl.h so we can use the various macro definitions |
| 27 | here and in all subsequent file inclusions. */ |
| 28 | |
| 29 | #include "ansidecl.h" |
| 30 | |
| 31 | #include "libiberty.h" |
| 32 | |
| 33 | /* libiberty.h can't declare this one, but evidently we can. */ |
| 34 | extern char *strsignal PARAMS ((int)); |
| 35 | |
| 36 | /* For BFD64 and bfd_vma. */ |
| 37 | #include "bfd.h" |
| 38 | |
| 39 | /* An address in the program being debugged. Host byte order. Rather |
| 40 | than duplicate all the logic in BFD which figures out what type |
| 41 | this is (long, long long, etc.) and whether it needs to be 64 |
| 42 | bits (the host/target interactions are subtle), we just use |
| 43 | bfd_vma. */ |
| 44 | |
| 45 | typedef bfd_vma CORE_ADDR; |
| 46 | |
| 47 | #define min(a, b) ((a) < (b) ? (a) : (b)) |
| 48 | #define max(a, b) ((a) > (b) ? (a) : (b)) |
| 49 | |
| 50 | /* Gdb does *lots* of string compares. Use macros to speed them up by |
| 51 | avoiding function calls if the first characters are not the same. */ |
| 52 | |
| 53 | #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b)) |
| 54 | #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0) |
| 55 | #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0) |
| 56 | |
| 57 | /* The character GNU C++ uses to build identifiers that must be unique from |
| 58 | the program's identifiers (such as $this and $$vptr). */ |
| 59 | #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */ |
| 60 | |
| 61 | #include <errno.h> /* System call error return status */ |
| 62 | |
| 63 | extern int quit_flag; |
| 64 | extern int immediate_quit; |
| 65 | extern int sevenbit_strings; |
| 66 | |
| 67 | extern void quit PARAMS ((void)); |
| 68 | |
| 69 | #define QUIT { if (quit_flag) quit (); if (interactive_hook) interactive_hook (); } |
| 70 | |
| 71 | /* Command classes are top-level categories into which commands are broken |
| 72 | down for "help" purposes. |
| 73 | Notes on classes: class_alias is for alias commands which are not |
| 74 | abbreviations of the original command. class-pseudo is for commands |
| 75 | which are not really commands nor help topics ("stop"). */ |
| 76 | |
| 77 | enum command_class |
| 78 | { |
| 79 | /* Special args to help_list */ |
| 80 | all_classes = -2, all_commands = -1, |
| 81 | /* Classes of commands */ |
| 82 | no_class = -1, class_run = 0, class_vars, class_stack, |
| 83 | class_files, class_support, class_info, class_breakpoint, |
| 84 | class_alias, class_obscure, class_user, class_maintenance, |
| 85 | class_pseudo |
| 86 | }; |
| 87 | |
| 88 | /* Languages represented in the symbol table and elsewhere. |
| 89 | This should probably be in language.h, but since enum's can't |
| 90 | be forward declared to satisfy opaque references before their |
| 91 | actual definition, needs to be here. */ |
| 92 | |
| 93 | enum language |
| 94 | { |
| 95 | language_unknown, /* Language not known */ |
| 96 | language_auto, /* Placeholder for automatic setting */ |
| 97 | language_c, /* C */ |
| 98 | language_cplus, /* C++ */ |
| 99 | language_chill, /* Chill */ |
| 100 | language_fortran, /* Fortran */ |
| 101 | language_m2, /* Modula-2 */ |
| 102 | language_asm /* Assembly language */ |
| 103 | }; |
| 104 | |
| 105 | /* the cleanup list records things that have to be undone |
| 106 | if an error happens (descriptors to be closed, memory to be freed, etc.) |
| 107 | Each link in the chain records a function to call and an |
| 108 | argument to give it. |
| 109 | |
| 110 | Use make_cleanup to add an element to the cleanup chain. |
| 111 | Use do_cleanups to do all cleanup actions back to a given |
| 112 | point in the chain. Use discard_cleanups to remove cleanups |
| 113 | from the chain back to a given point, not doing them. */ |
| 114 | |
| 115 | struct cleanup |
| 116 | { |
| 117 | struct cleanup *next; |
| 118 | void (*function) PARAMS ((PTR)); |
| 119 | PTR arg; |
| 120 | }; |
| 121 | |
| 122 | /* Needed for various prototypes */ |
| 123 | |
| 124 | #ifdef __STDC__ |
| 125 | struct symtab; |
| 126 | struct breakpoint; |
| 127 | #endif |
| 128 | |
| 129 | /* From blockframe.c */ |
| 130 | |
| 131 | extern int inside_entry_func PARAMS ((CORE_ADDR)); |
| 132 | |
| 133 | extern int inside_entry_file PARAMS ((CORE_ADDR addr)); |
| 134 | |
| 135 | extern int inside_main_func PARAMS ((CORE_ADDR pc)); |
| 136 | |
| 137 | /* From ch-lang.c, for the moment. (FIXME) */ |
| 138 | |
| 139 | extern char *chill_demangle PARAMS ((const char *)); |
| 140 | |
| 141 | /* From libiberty.a */ |
| 142 | |
| 143 | extern char *cplus_demangle PARAMS ((const char *, int)); |
| 144 | |
| 145 | extern char *cplus_mangle_opname PARAMS ((char *, int)); |
| 146 | |
| 147 | /* From libmmalloc.a (memory mapped malloc library) */ |
| 148 | |
| 149 | extern PTR mmalloc_attach PARAMS ((int, PTR)); |
| 150 | |
| 151 | extern PTR mmalloc_detach PARAMS ((PTR)); |
| 152 | |
| 153 | extern PTR mmalloc PARAMS ((PTR, long)); |
| 154 | |
| 155 | extern PTR mrealloc PARAMS ((PTR, PTR, long)); |
| 156 | |
| 157 | extern void mfree PARAMS ((PTR, PTR)); |
| 158 | |
| 159 | extern int mmalloc_setkey PARAMS ((PTR, int, PTR)); |
| 160 | |
| 161 | extern PTR mmalloc_getkey PARAMS ((PTR, int)); |
| 162 | |
| 163 | /* From utils.c */ |
| 164 | |
| 165 | extern int strcmp_iw PARAMS ((const char *, const char *)); |
| 166 | |
| 167 | extern char *safe_strerror PARAMS ((int)); |
| 168 | |
| 169 | extern char *safe_strsignal PARAMS ((int)); |
| 170 | |
| 171 | extern void init_malloc PARAMS ((void *)); |
| 172 | |
| 173 | extern void request_quit PARAMS ((int)); |
| 174 | |
| 175 | extern void do_cleanups PARAMS ((struct cleanup *)); |
| 176 | |
| 177 | extern void discard_cleanups PARAMS ((struct cleanup *)); |
| 178 | |
| 179 | /* The bare make_cleanup function is one of those rare beasts that |
| 180 | takes almost any type of function as the first arg and anything that |
| 181 | will fit in a "void *" as the second arg. |
| 182 | |
| 183 | Should be, once all calls and called-functions are cleaned up: |
| 184 | extern struct cleanup * |
| 185 | make_cleanup PARAMS ((void (*function) (void *), void *)); |
| 186 | |
| 187 | Until then, lint and/or various type-checking compiler options will |
| 188 | complain about make_cleanup calls. It'd be wrong to just cast things, |
| 189 | since the type actually passed when the function is called would be |
| 190 | wrong. */ |
| 191 | |
| 192 | extern struct cleanup *make_cleanup (); |
| 193 | |
| 194 | extern struct cleanup *save_cleanups PARAMS ((void)); |
| 195 | |
| 196 | extern void restore_cleanups PARAMS ((struct cleanup *)); |
| 197 | |
| 198 | extern void free_current_contents PARAMS ((char **)); |
| 199 | |
| 200 | extern void null_cleanup PARAMS ((char **)); |
| 201 | |
| 202 | extern int myread PARAMS ((int, char *, int)); |
| 203 | |
| 204 | extern int query (); |
| 205 | \f |
| 206 | /* Annotation stuff. */ |
| 207 | |
| 208 | extern int annotation_level; /* in stack.c */ |
| 209 | \f |
| 210 | extern void begin_line PARAMS ((void)); |
| 211 | |
| 212 | extern void wrap_here PARAMS ((char *)); |
| 213 | |
| 214 | extern void reinitialize_more_filter PARAMS ((void)); |
| 215 | |
| 216 | typedef FILE GDB_FILE; |
| 217 | #define gdb_stdout stdout |
| 218 | #define gdb_stderr stderr |
| 219 | |
| 220 | extern int print_insn PARAMS ((CORE_ADDR, GDB_FILE *)); |
| 221 | |
| 222 | extern void gdb_flush PARAMS ((GDB_FILE *)); |
| 223 | |
| 224 | extern GDB_FILE *gdb_fopen PARAMS ((char * name, char * mode)); |
| 225 | |
| 226 | extern void fputs_filtered PARAMS ((const char *, GDB_FILE *)); |
| 227 | |
| 228 | extern void fputs_unfiltered PARAMS ((const char *, GDB_FILE *)); |
| 229 | |
| 230 | extern void fputc_unfiltered PARAMS ((int, GDB_FILE *)); |
| 231 | |
| 232 | extern void putc_unfiltered PARAMS ((int)); |
| 233 | |
| 234 | #define putchar_unfiltered(C) putc_unfiltered(C) |
| 235 | |
| 236 | extern void puts_filtered PARAMS ((char *)); |
| 237 | |
| 238 | extern void puts_unfiltered PARAMS ((char *)); |
| 239 | |
| 240 | extern void vprintf_filtered (); |
| 241 | |
| 242 | extern void vfprintf_filtered (); |
| 243 | |
| 244 | extern void fprintf_filtered (); |
| 245 | |
| 246 | extern void fprintfi_filtered (); |
| 247 | |
| 248 | extern void printf_filtered (); |
| 249 | |
| 250 | extern void printfi_filtered (); |
| 251 | |
| 252 | extern void vprintf_unfiltered (); |
| 253 | |
| 254 | extern void vfprintf_unfiltered (); |
| 255 | |
| 256 | extern void fprintf_unfiltered (); |
| 257 | |
| 258 | extern void printf_unfiltered (); |
| 259 | |
| 260 | extern void print_spaces PARAMS ((int, GDB_FILE *)); |
| 261 | |
| 262 | extern void print_spaces_filtered PARAMS ((int, GDB_FILE *)); |
| 263 | |
| 264 | extern char *n_spaces PARAMS ((int)); |
| 265 | |
| 266 | extern void gdb_printchar PARAMS ((int, GDB_FILE *, int)); |
| 267 | |
| 268 | extern void gdb_print_address PARAMS ((void *, GDB_FILE *)); |
| 269 | |
| 270 | extern void fprintf_symbol_filtered PARAMS ((GDB_FILE *, char *, |
| 271 | enum language, int)); |
| 272 | |
| 273 | extern void perror_with_name PARAMS ((char *)); |
| 274 | |
| 275 | extern void print_sys_errmsg PARAMS ((char *, int)); |
| 276 | |
| 277 | /* From regex.c or libc. BSD 4.4 declares this with the argument type as |
| 278 | "const char *" in unistd.h, so we can't declare the argument |
| 279 | as "char *". */ |
| 280 | |
| 281 | extern char *re_comp PARAMS ((const char *)); |
| 282 | |
| 283 | /* From symfile.c */ |
| 284 | |
| 285 | extern void symbol_file_command PARAMS ((char *, int)); |
| 286 | |
| 287 | /* From main.c */ |
| 288 | |
| 289 | extern char *skip_quoted PARAMS ((char *)); |
| 290 | |
| 291 | extern char *gdb_readline PARAMS ((char *)); |
| 292 | |
| 293 | extern char *command_line_input PARAMS ((char *, int, char *)); |
| 294 | |
| 295 | extern void print_prompt PARAMS ((void)); |
| 296 | |
| 297 | extern int input_from_terminal_p PARAMS ((void)); |
| 298 | |
| 299 | /* From printcmd.c */ |
| 300 | |
| 301 | extern void set_next_address PARAMS ((CORE_ADDR)); |
| 302 | |
| 303 | extern void print_address_symbolic PARAMS ((CORE_ADDR, GDB_FILE *, int, |
| 304 | char *)); |
| 305 | |
| 306 | extern void print_address_numeric PARAMS ((CORE_ADDR, int, GDB_FILE *)); |
| 307 | |
| 308 | extern void print_address PARAMS ((CORE_ADDR, GDB_FILE *)); |
| 309 | |
| 310 | /* From source.c */ |
| 311 | |
| 312 | extern int openp PARAMS ((char *, int, char *, int, int, char **)); |
| 313 | |
| 314 | extern void mod_path PARAMS ((char *, char **)); |
| 315 | |
| 316 | extern void directory_command PARAMS ((char *, int)); |
| 317 | |
| 318 | extern void init_source_path PARAMS ((void)); |
| 319 | |
| 320 | extern char *symtab_to_filename PARAMS ((struct symtab *)); |
| 321 | |
| 322 | /* From findvar.c */ |
| 323 | |
| 324 | extern int read_relative_register_raw_bytes PARAMS ((int, char *)); |
| 325 | |
| 326 | /* From readline (but not in any readline .h files). */ |
| 327 | |
| 328 | extern char *tilde_expand PARAMS ((char *)); |
| 329 | |
| 330 | /* Control types for commands */ |
| 331 | |
| 332 | enum misc_command_type |
| 333 | { |
| 334 | ok_command, |
| 335 | end_command, |
| 336 | else_command, |
| 337 | nop_command |
| 338 | }; |
| 339 | |
| 340 | enum command_control_type |
| 341 | { |
| 342 | simple_control, |
| 343 | break_control, |
| 344 | continue_control, |
| 345 | while_control, |
| 346 | if_control, |
| 347 | invalid_control |
| 348 | }; |
| 349 | |
| 350 | /* Structure for saved commands lines |
| 351 | (for breakpoints, defined commands, etc). */ |
| 352 | |
| 353 | struct command_line |
| 354 | { |
| 355 | struct command_line *next; |
| 356 | char *line; |
| 357 | enum command_control_type control_type; |
| 358 | int body_count; |
| 359 | struct command_line **body_list; |
| 360 | }; |
| 361 | |
| 362 | extern struct command_line *read_command_lines PARAMS ((void)); |
| 363 | |
| 364 | extern void free_command_lines PARAMS ((struct command_line **)); |
| 365 | |
| 366 | /* String containing the current directory (what getwd would return). */ |
| 367 | |
| 368 | extern char *current_directory; |
| 369 | |
| 370 | /* Default radixes for input and output. Only some values supported. */ |
| 371 | extern unsigned input_radix; |
| 372 | extern unsigned output_radix; |
| 373 | |
| 374 | /* Possibilities for prettyprint parameters to routines which print |
| 375 | things. Like enum language, this should be in value.h, but needs |
| 376 | to be here for the same reason. FIXME: If we can eliminate this |
| 377 | as an arg to LA_VAL_PRINT, then we can probably move it back to |
| 378 | value.h. */ |
| 379 | |
| 380 | enum val_prettyprint |
| 381 | { |
| 382 | Val_no_prettyprint = 0, |
| 383 | Val_prettyprint, |
| 384 | /* Use the default setting which the user has specified. */ |
| 385 | Val_pretty_default |
| 386 | }; |
| 387 | |
| 388 | \f |
| 389 | /* Host machine definition. This will be a symlink to one of the |
| 390 | xm-*.h files, built by the `configure' script. */ |
| 391 | |
| 392 | #include "xm.h" |
| 393 | |
| 394 | /* Native machine support. This will be a symlink to one of the |
| 395 | nm-*.h files, built by the `configure' script. */ |
| 396 | |
| 397 | #include "nm.h" |
| 398 | |
| 399 | /* If the xm.h file did not define the mode string used to open the |
| 400 | files, assume that binary files are opened the same way as text |
| 401 | files */ |
| 402 | #ifndef FOPEN_RB |
| 403 | #include "fopen-same.h" |
| 404 | #endif |
| 405 | |
| 406 | /* |
| 407 | * Allow things in gdb to be declared "const". If compiling ANSI, it |
| 408 | * just works. If compiling with gcc but non-ansi, redefine to __const__. |
| 409 | * If non-ansi, non-gcc, then eliminate "const" entirely, making those |
| 410 | * objects be read-write rather than read-only. |
| 411 | */ |
| 412 | |
| 413 | #ifndef const |
| 414 | #ifndef __STDC__ |
| 415 | # ifdef __GNUC__ |
| 416 | # define const __const__ |
| 417 | # else |
| 418 | # define const /*nothing*/ |
| 419 | # endif /* GNUC */ |
| 420 | #endif /* STDC */ |
| 421 | #endif /* const */ |
| 422 | |
| 423 | #ifndef volatile |
| 424 | #ifndef __STDC__ |
| 425 | # ifdef __GNUC__ |
| 426 | # define volatile __volatile__ |
| 427 | # else |
| 428 | # define volatile /*nothing*/ |
| 429 | # endif /* GNUC */ |
| 430 | #endif /* STDC */ |
| 431 | #endif /* volatile */ |
| 432 | |
| 433 | /* The ability to declare that a function never returns is useful, but |
| 434 | not really required to compile GDB successfully, so the NORETURN and |
| 435 | ATTR_NORETURN macros normally expand into nothing. */ |
| 436 | |
| 437 | /* If compiling with older versions of GCC, a function may be declared |
| 438 | "volatile" to indicate that it does not return. */ |
| 439 | |
| 440 | #ifndef NORETURN |
| 441 | # if defined(__GNUC__) \ |
| 442 | && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)) |
| 443 | # define NORETURN volatile |
| 444 | # else |
| 445 | # define NORETURN /* nothing */ |
| 446 | # endif |
| 447 | #endif |
| 448 | |
| 449 | /* GCC 2.5 and later versions define a function attribute "noreturn", |
| 450 | which is the preferred way to declare that a function never returns. */ |
| 451 | |
| 452 | #ifndef ATTR_NORETURN |
| 453 | # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 5 |
| 454 | # define ATTR_NORETURN __attribute__ ((noreturn)) |
| 455 | # else |
| 456 | # define ATTR_NORETURN /* nothing */ |
| 457 | # endif |
| 458 | #endif |
| 459 | |
| 460 | /* Defaults for system-wide constants (if not defined by xm.h, we fake it). */ |
| 461 | |
| 462 | #if !defined (UINT_MAX) |
| 463 | #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */ |
| 464 | #endif |
| 465 | |
| 466 | #if !defined (INT_MAX) |
| 467 | #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */ |
| 468 | #endif |
| 469 | |
| 470 | #if !defined (INT_MIN) |
| 471 | #define INT_MIN (-INT_MAX - 1) /* 0x80000000 for 32-bits */ |
| 472 | #endif |
| 473 | |
| 474 | #if !defined (ULONG_MAX) |
| 475 | #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */ |
| 476 | #endif |
| 477 | |
| 478 | #if !defined (LONG_MAX) |
| 479 | #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */ |
| 480 | #endif |
| 481 | |
| 482 | #ifdef BFD64 |
| 483 | |
| 484 | /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */ |
| 485 | |
| 486 | #define LONGEST BFD_HOST_64_BIT |
| 487 | |
| 488 | #else /* No BFD64 */ |
| 489 | |
| 490 | /* If all compilers for this host support "long long" and we want to |
| 491 | use it for LONGEST (the performance hit is about 10% on a testsuite |
| 492 | run based on one DECstation test), then the xm.h file can define |
| 493 | CC_HAS_LONG_LONG. |
| 494 | |
| 495 | Using GCC 1.39 on BSDI with long long causes about 700 new |
| 496 | testsuite failures. Using long long for LONGEST on the DECstation |
| 497 | causes 3 new FAILs in the testsuite and many heuristic fencepost |
| 498 | warnings. These are not investigated, but a first guess would be |
| 499 | that the BSDI problems are GCC bugs in long long support and the |
| 500 | latter are GDB bugs. */ |
| 501 | |
| 502 | #ifndef CC_HAS_LONG_LONG |
| 503 | # if defined (__GNUC__) && defined (FORCE_LONG_LONG) |
| 504 | # define CC_HAS_LONG_LONG 1 |
| 505 | # endif |
| 506 | #endif |
| 507 | |
| 508 | /* LONGEST should not be a typedef, because "unsigned LONGEST" needs to work. |
| 509 | CC_HAS_LONG_LONG is defined if the host compiler supports "long long" |
| 510 | variables and we wish to make use of that support. */ |
| 511 | |
| 512 | #ifndef LONGEST |
| 513 | # ifdef CC_HAS_LONG_LONG |
| 514 | # define LONGEST long long |
| 515 | # else |
| 516 | # define LONGEST long |
| 517 | # endif |
| 518 | #endif |
| 519 | |
| 520 | #endif /* No BFD64 */ |
| 521 | |
| 522 | /* Convert a LONGEST to an int. This is used in contexts (e.g. number of |
| 523 | arguments to a function, number in a value history, register number, etc.) |
| 524 | where the value must not be larger than can fit in an int. */ |
| 525 | |
| 526 | extern int longest_to_int PARAMS ((LONGEST)); |
| 527 | |
| 528 | /* Assorted functions we can declare, now that const and volatile are |
| 529 | defined. */ |
| 530 | |
| 531 | extern char *savestring PARAMS ((const char *, int)); |
| 532 | |
| 533 | extern char *msavestring PARAMS ((void *, const char *, int)); |
| 534 | |
| 535 | extern char *strsave PARAMS ((const char *)); |
| 536 | |
| 537 | extern char *mstrsave PARAMS ((void *, const char *)); |
| 538 | |
| 539 | extern PTR xmalloc PARAMS ((long)); |
| 540 | |
| 541 | extern PTR xrealloc PARAMS ((PTR, long)); |
| 542 | |
| 543 | extern PTR xmmalloc PARAMS ((PTR, long)); |
| 544 | |
| 545 | extern PTR xmrealloc PARAMS ((PTR, PTR, long)); |
| 546 | |
| 547 | extern PTR mmalloc PARAMS ((PTR, long)); |
| 548 | |
| 549 | extern PTR mrealloc PARAMS ((PTR, PTR, long)); |
| 550 | |
| 551 | extern void mfree PARAMS ((PTR, PTR)); |
| 552 | |
| 553 | extern int mmcheck PARAMS ((PTR, void (*) (void))); |
| 554 | |
| 555 | extern int mmtrace PARAMS ((void)); |
| 556 | |
| 557 | extern int parse_escape PARAMS ((char **)); |
| 558 | |
| 559 | extern const char * const reg_names[]; |
| 560 | |
| 561 | /* Message to be printed before the error message, when an error occurs. */ |
| 562 | |
| 563 | extern char *error_pre_print; |
| 564 | |
| 565 | /* Message to be printed before the warning message, when a warning occurs. */ |
| 566 | |
| 567 | extern char *warning_pre_print; |
| 568 | |
| 569 | extern NORETURN void error () ATTR_NORETURN; |
| 570 | |
| 571 | extern void error_begin PARAMS ((void)); |
| 572 | |
| 573 | extern NORETURN void fatal () ATTR_NORETURN; |
| 574 | |
| 575 | extern NORETURN void exit PARAMS ((int)) ATTR_NORETURN; /* 4.10.4.3 */ |
| 576 | |
| 577 | extern NORETURN void nomem PARAMS ((long)) ATTR_NORETURN; |
| 578 | |
| 579 | /* Reasons for calling return_to_top_level. */ |
| 580 | enum return_reason { |
| 581 | /* User interrupt. */ |
| 582 | RETURN_QUIT, |
| 583 | |
| 584 | /* Any other error. */ |
| 585 | RETURN_ERROR |
| 586 | }; |
| 587 | |
| 588 | #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT) |
| 589 | #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR) |
| 590 | #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR) |
| 591 | typedef int return_mask; |
| 592 | |
| 593 | extern NORETURN void |
| 594 | return_to_top_level PARAMS ((enum return_reason)) ATTR_NORETURN; |
| 595 | |
| 596 | extern int |
| 597 | catch_errors PARAMS ((int (*) (char *), void *, char *, return_mask)); |
| 598 | |
| 599 | extern void warning_setup PARAMS ((void)); |
| 600 | |
| 601 | extern void warning (); |
| 602 | |
| 603 | /* Global functions from other, non-gdb GNU thingies. |
| 604 | Libiberty thingies are no longer declared here. We include libiberty.h |
| 605 | above, instead. */ |
| 606 | |
| 607 | extern char *getenv PARAMS ((const char *)); |
| 608 | |
| 609 | /* From other system libraries */ |
| 610 | |
| 611 | #ifndef PSIGNAL_IN_SIGNAL_H |
| 612 | extern void psignal PARAMS ((unsigned, const char *)); |
| 613 | #endif |
| 614 | |
| 615 | /* For now, we can't include <stdlib.h> because it conflicts with |
| 616 | "../include/getopt.h". (FIXME) |
| 617 | |
| 618 | However, if a function is defined in the ANSI C standard and a prototype |
| 619 | for that function is defined and visible in any header file in an ANSI |
| 620 | conforming environment, then that prototype must match the definition in |
| 621 | the ANSI standard. So we can just duplicate them here without conflict, |
| 622 | since they must be the same in all conforming ANSI environments. If |
| 623 | these cause problems, then the environment is not ANSI conformant. */ |
| 624 | |
| 625 | #ifdef __STDC__ |
| 626 | #include <stddef.h> |
| 627 | #endif |
| 628 | |
| 629 | extern int fclose PARAMS ((GDB_FILE *stream)); /* 4.9.5.1 */ |
| 630 | |
| 631 | extern void perror PARAMS ((const char *)); /* 4.9.10.4 */ |
| 632 | |
| 633 | extern double atof PARAMS ((const char *nptr)); /* 4.10.1.1 */ |
| 634 | |
| 635 | extern int atoi PARAMS ((const char *)); /* 4.10.1.2 */ |
| 636 | |
| 637 | #ifndef MALLOC_INCOMPATIBLE |
| 638 | |
| 639 | extern PTR malloc PARAMS ((size_t size)); /* 4.10.3.3 */ |
| 640 | |
| 641 | extern PTR realloc PARAMS ((void *ptr, size_t size)); /* 4.10.3.4 */ |
| 642 | |
| 643 | extern void free PARAMS ((void *)); /* 4.10.3.2 */ |
| 644 | |
| 645 | #endif /* MALLOC_INCOMPATIBLE */ |
| 646 | |
| 647 | extern void |
| 648 | qsort PARAMS ((void *base, size_t nmemb, /* 4.10.5.2 */ |
| 649 | size_t size, |
| 650 | int (*compar)(const void *, const void *))); |
| 651 | |
| 652 | #ifndef MEM_FNS_DECLARED /* Some non-ANSI use void *, not char *. */ |
| 653 | extern PTR memcpy PARAMS ((void *, const void *, size_t)); /* 4.11.2.1 */ |
| 654 | |
| 655 | extern int memcmp PARAMS ((const void *, const void *, size_t)); /* 4.11.4.1 */ |
| 656 | #endif |
| 657 | |
| 658 | extern char *strchr PARAMS ((const char *, int)); /* 4.11.5.2 */ |
| 659 | |
| 660 | extern char *strrchr PARAMS ((const char *, int)); /* 4.11.5.5 */ |
| 661 | |
| 662 | extern char *strstr PARAMS ((const char *, const char *)); /* 4.11.5.7 */ |
| 663 | |
| 664 | extern char *strtok PARAMS ((char *, const char *)); /* 4.11.5.8 */ |
| 665 | |
| 666 | #ifndef MEM_FNS_DECLARED /* Some non-ANSI use void *, not char *. */ |
| 667 | extern PTR memset PARAMS ((void *, int, size_t)); /* 4.11.6.1 */ |
| 668 | #endif |
| 669 | |
| 670 | extern char *strerror PARAMS ((int)); /* 4.11.6.2 */ |
| 671 | |
| 672 | /* Various possibilities for alloca. */ |
| 673 | #ifndef alloca |
| 674 | # ifdef __GNUC__ |
| 675 | # define alloca __builtin_alloca |
| 676 | # else /* Not GNU C */ |
| 677 | # ifdef sparc |
| 678 | # include <alloca.h> /* NOTE: Doesn't declare alloca() */ |
| 679 | # endif |
| 680 | |
| 681 | /* We need to be careful not to declare this in a way which conflicts with |
| 682 | bison. Bison never declares it as char *, but under various circumstances |
| 683 | (like __hpux) we need to use void *. */ |
| 684 | # if defined (__STDC__) || defined (__hpux) |
| 685 | extern void *alloca (); |
| 686 | # else /* Don't use void *. */ |
| 687 | extern char *alloca (); |
| 688 | # endif /* Don't use void *. */ |
| 689 | # endif /* Not GNU C */ |
| 690 | #endif /* alloca not defined */ |
| 691 | |
| 692 | /* HOST_BYTE_ORDER must be defined to one of these. */ |
| 693 | |
| 694 | #if !defined (BIG_ENDIAN) |
| 695 | #define BIG_ENDIAN 4321 |
| 696 | #endif |
| 697 | |
| 698 | #if !defined (LITTLE_ENDIAN) |
| 699 | #define LITTLE_ENDIAN 1234 |
| 700 | #endif |
| 701 | |
| 702 | /* Target-system-dependent parameters for GDB. */ |
| 703 | |
| 704 | /* Target machine definition. This will be a symlink to one of the |
| 705 | tm-*.h files, built by the `configure' script. */ |
| 706 | |
| 707 | #include "tm.h" |
| 708 | |
| 709 | #ifdef TARGET_BYTE_ORDER_SELECTABLE |
| 710 | /* The target endianness is selectable at runtime. Define |
| 711 | TARGET_BYTE_ORDER to be a variable. The user can use the `set |
| 712 | endian' command to change it. */ |
| 713 | #undef TARGET_BYTE_ORDER |
| 714 | #define TARGET_BYTE_ORDER target_byte_order |
| 715 | extern int target_byte_order; |
| 716 | #endif |
| 717 | |
| 718 | extern void set_endian_from_file PARAMS ((bfd *)); |
| 719 | |
| 720 | /* Number of bits in a char or unsigned char for the target machine. |
| 721 | Just like CHAR_BIT in <limits.h> but describes the target machine. */ |
| 722 | #if !defined (TARGET_CHAR_BIT) |
| 723 | #define TARGET_CHAR_BIT 8 |
| 724 | #endif |
| 725 | |
| 726 | /* Number of bits in a short or unsigned short for the target machine. */ |
| 727 | #if !defined (TARGET_SHORT_BIT) |
| 728 | #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT) |
| 729 | #endif |
| 730 | |
| 731 | /* Number of bits in an int or unsigned int for the target machine. */ |
| 732 | #if !defined (TARGET_INT_BIT) |
| 733 | #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT) |
| 734 | #endif |
| 735 | |
| 736 | /* Number of bits in a long or unsigned long for the target machine. */ |
| 737 | #if !defined (TARGET_LONG_BIT) |
| 738 | #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT) |
| 739 | #endif |
| 740 | |
| 741 | /* Number of bits in a long long or unsigned long long for the target machine. */ |
| 742 | #if !defined (TARGET_LONG_LONG_BIT) |
| 743 | #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT) |
| 744 | #endif |
| 745 | |
| 746 | /* Number of bits in a float for the target machine. */ |
| 747 | #if !defined (TARGET_FLOAT_BIT) |
| 748 | #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT) |
| 749 | #endif |
| 750 | |
| 751 | /* Number of bits in a double for the target machine. */ |
| 752 | #if !defined (TARGET_DOUBLE_BIT) |
| 753 | #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT) |
| 754 | #endif |
| 755 | |
| 756 | /* Number of bits in a long double for the target machine. */ |
| 757 | #if !defined (TARGET_LONG_DOUBLE_BIT) |
| 758 | #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT) |
| 759 | #endif |
| 760 | |
| 761 | /* Number of bits in a "complex" for the target machine. */ |
| 762 | #if !defined (TARGET_COMPLEX_BIT) |
| 763 | #define TARGET_COMPLEX_BIT (2 * TARGET_FLOAT_BIT) |
| 764 | #endif |
| 765 | |
| 766 | /* Number of bits in a "double complex" for the target machine. */ |
| 767 | #if !defined (TARGET_DOUBLE_COMPLEX_BIT) |
| 768 | #define TARGET_DOUBLE_COMPLEX_BIT (2 * TARGET_DOUBLE_BIT) |
| 769 | #endif |
| 770 | |
| 771 | /* Number of bits in a pointer for the target machine */ |
| 772 | #if !defined (TARGET_PTR_BIT) |
| 773 | #define TARGET_PTR_BIT TARGET_INT_BIT |
| 774 | #endif |
| 775 | |
| 776 | /* If we picked up a copy of CHAR_BIT from a configuration file |
| 777 | (which may get it by including <limits.h>) then use it to set |
| 778 | the number of bits in a host char. If not, use the same size |
| 779 | as the target. */ |
| 780 | |
| 781 | #if defined (CHAR_BIT) |
| 782 | #define HOST_CHAR_BIT CHAR_BIT |
| 783 | #else |
| 784 | #define HOST_CHAR_BIT TARGET_CHAR_BIT |
| 785 | #endif |
| 786 | |
| 787 | /* The bit byte-order has to do just with numbering of bits in |
| 788 | debugging symbols and such. Conceptually, it's quite separate |
| 789 | from byte/word byte order. */ |
| 790 | |
| 791 | #if !defined (BITS_BIG_ENDIAN) |
| 792 | #ifndef TARGET_BYTE_ORDER_SELECTABLE |
| 793 | |
| 794 | #if TARGET_BYTE_ORDER == BIG_ENDIAN |
| 795 | #define BITS_BIG_ENDIAN 1 |
| 796 | #endif /* Big endian. */ |
| 797 | |
| 798 | #if TARGET_BYTE_ORDER == LITTLE_ENDIAN |
| 799 | #define BITS_BIG_ENDIAN 0 |
| 800 | #endif /* Little endian. */ |
| 801 | |
| 802 | #else /* defined (TARGET_BYTE_ORDER_SELECTABLE) */ |
| 803 | |
| 804 | #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN) |
| 805 | |
| 806 | #endif /* defined (TARGET_BYTE_ORDER_SELECTABLE) */ |
| 807 | #endif /* BITS_BIG_ENDIAN not defined. */ |
| 808 | |
| 809 | /* In findvar.c. */ |
| 810 | |
| 811 | extern LONGEST extract_signed_integer PARAMS ((void *, int)); |
| 812 | |
| 813 | extern unsigned LONGEST extract_unsigned_integer PARAMS ((void *, int)); |
| 814 | |
| 815 | extern CORE_ADDR extract_address PARAMS ((void *, int)); |
| 816 | |
| 817 | extern void store_signed_integer PARAMS ((void *, int, LONGEST)); |
| 818 | |
| 819 | extern void store_unsigned_integer PARAMS ((void *, int, unsigned LONGEST)); |
| 820 | |
| 821 | extern void store_address PARAMS ((void *, int, CORE_ADDR)); |
| 822 | |
| 823 | extern double extract_floating PARAMS ((void *, int)); |
| 824 | |
| 825 | extern void store_floating PARAMS ((void *, int, double)); |
| 826 | \f |
| 827 | /* On some machines there are bits in addresses which are not really |
| 828 | part of the address, but are used by the kernel, the hardware, etc. |
| 829 | for special purposes. ADDR_BITS_REMOVE takes out any such bits |
| 830 | so we get a "real" address such as one would find in a symbol |
| 831 | table. This is used only for addresses of instructions, and even then |
| 832 | I'm not sure it's used in all contexts. It exists to deal with there |
| 833 | being a few stray bits in the PC which would mislead us, not as some sort |
| 834 | of generic thing to handle alignment or segmentation (it's possible it |
| 835 | should be in TARGET_READ_PC instead). */ |
| 836 | #if !defined (ADDR_BITS_REMOVE) |
| 837 | #define ADDR_BITS_REMOVE(addr) (addr) |
| 838 | #endif /* No ADDR_BITS_REMOVE. */ |
| 839 | |
| 840 | /* From valops.c */ |
| 841 | |
| 842 | extern CORE_ADDR push_bytes PARAMS ((CORE_ADDR, char *, int)); |
| 843 | |
| 844 | extern CORE_ADDR push_word PARAMS ((CORE_ADDR, unsigned LONGEST)); |
| 845 | |
| 846 | /* Some parts of gdb might be considered optional, in the sense that they |
| 847 | are not essential for being able to build a working, usable debugger |
| 848 | for a specific environment. For example, the maintenance commands |
| 849 | are there for the benefit of gdb maintainers. As another example, |
| 850 | some environments really don't need gdb's that are able to read N |
| 851 | different object file formats. In order to make it possible (but |
| 852 | not necessarily recommended) to build "stripped down" versions of |
| 853 | gdb, the following defines control selective compilation of those |
| 854 | parts of gdb which can be safely left out when necessary. Note that |
| 855 | the default is to include everything. */ |
| 856 | |
| 857 | #ifndef MAINTENANCE_CMDS |
| 858 | #define MAINTENANCE_CMDS 1 |
| 859 | #endif |
| 860 | |
| 861 | /* Hooks for alternate command interfaces. */ |
| 862 | |
| 863 | extern void (*init_ui_hook) PARAMS ((void)); |
| 864 | extern void (*command_loop_hook) PARAMS ((void)); |
| 865 | extern void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer)); |
| 866 | extern void (*print_frame_info_listing_hook) PARAMS ((struct symtab *s, int line, |
| 867 | int stopline, int noerror)); |
| 868 | extern int (*query_hook) PARAMS (()); |
| 869 | extern void (*flush_hook) PARAMS ((FILE *stream)); |
| 870 | extern void (*create_breakpoint_hook) PARAMS ((struct breakpoint *b)); |
| 871 | extern void (*delete_breakpoint_hook) PARAMS ((struct breakpoint *bpt)); |
| 872 | extern void (*enable_breakpoint_hook) PARAMS ((struct breakpoint *bpt)); |
| 873 | extern void (*disable_breakpoint_hook) PARAMS ((struct breakpoint *bpt)); |
| 874 | extern void (*interactive_hook) PARAMS ((void)); |
| 875 | |
| 876 | #ifdef __STDC__ |
| 877 | struct target_waitstatus; |
| 878 | struct cmd_list_element; |
| 879 | #endif |
| 880 | |
| 881 | extern int (*target_wait_hook) PARAMS ((int pid, |
| 882 | struct target_waitstatus *status)); |
| 883 | |
| 884 | extern void (*call_command_hook) PARAMS ((struct cmd_list_element *c, |
| 885 | char *cmd, int from_tty)); |
| 886 | |
| 887 | /* Inhibit window interface if non-zero. */ |
| 888 | |
| 889 | extern int use_windows; |
| 890 | |
| 891 | #endif /* !defined (DEFS_H) */ |