| 1 | /* Basic, host-specific, and target-specific definitions for GDB. |
| 2 | Copyright (C) 1986, 1989, 1991 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | #if !defined (DEFS_H) |
| 21 | #define DEFS_H 1 |
| 22 | |
| 23 | #include <stdio.h> |
| 24 | |
| 25 | /* First include ansidecl.h so we can use the various macro definitions |
| 26 | here and in all subsequent file inclusions. */ |
| 27 | |
| 28 | #include "ansidecl.h" |
| 29 | |
| 30 | /* An address in the program being debugged. Host byte order. */ |
| 31 | typedef unsigned int CORE_ADDR; |
| 32 | |
| 33 | #define min(a, b) ((a) < (b) ? (a) : (b)) |
| 34 | #define max(a, b) ((a) > (b) ? (a) : (b)) |
| 35 | |
| 36 | /* Gdb does *lots* of string compares. Use macros to speed them up by |
| 37 | avoiding function calls if the first characters are not the same. */ |
| 38 | |
| 39 | #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b)) |
| 40 | #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0) |
| 41 | #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0) |
| 42 | |
| 43 | /* The character GNU C++ uses to build identifiers that must be unique from |
| 44 | the program's identifiers (such as $this and $$vptr). */ |
| 45 | #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */ |
| 46 | |
| 47 | #include <errno.h> /* System call error return status */ |
| 48 | |
| 49 | extern int quit_flag; |
| 50 | extern int immediate_quit; |
| 51 | extern int sevenbit_strings; |
| 52 | |
| 53 | extern void |
| 54 | quit PARAMS ((void)); |
| 55 | |
| 56 | #define QUIT { if (quit_flag) quit (); } |
| 57 | |
| 58 | /* Command classes are top-level categories into which commands are broken |
| 59 | down for "help" purposes. |
| 60 | Notes on classes: class_alias is for alias commands which are not |
| 61 | abbreviations of the original command. class-pseudo is for commands |
| 62 | which are not really commands nor help topics ("stop"). */ |
| 63 | |
| 64 | enum command_class |
| 65 | { |
| 66 | /* Special args to help_list */ |
| 67 | all_classes = -2, all_commands = -1, |
| 68 | /* Classes of commands */ |
| 69 | no_class = -1, class_run = 0, class_vars, class_stack, |
| 70 | class_files, class_support, class_info, class_breakpoint, |
| 71 | class_alias, class_obscure, class_user, class_maintenance, |
| 72 | class_pseudo |
| 73 | }; |
| 74 | |
| 75 | /* Languages represented in the symbol table and elsewhere. |
| 76 | This should probably be in language.h, but since enum's can't |
| 77 | be forward declared to satisfy opaque references before their |
| 78 | actual definition, needs to be here. */ |
| 79 | |
| 80 | enum language |
| 81 | { |
| 82 | language_unknown, /* Language not known */ |
| 83 | language_auto, /* Placeholder for automatic setting */ |
| 84 | language_c, /* C */ |
| 85 | language_cplus, /* C++ */ |
| 86 | language_chill, /* Chill */ |
| 87 | language_m2 /* Modula-2 */ |
| 88 | }; |
| 89 | |
| 90 | /* the cleanup list records things that have to be undone |
| 91 | if an error happens (descriptors to be closed, memory to be freed, etc.) |
| 92 | Each link in the chain records a function to call and an |
| 93 | argument to give it. |
| 94 | |
| 95 | Use make_cleanup to add an element to the cleanup chain. |
| 96 | Use do_cleanups to do all cleanup actions back to a given |
| 97 | point in the chain. Use discard_cleanups to remove cleanups |
| 98 | from the chain back to a given point, not doing them. */ |
| 99 | |
| 100 | struct cleanup |
| 101 | { |
| 102 | struct cleanup *next; |
| 103 | void (*function) PARAMS ((PTR)); |
| 104 | PTR arg; |
| 105 | }; |
| 106 | |
| 107 | /* From blockframe.c */ |
| 108 | |
| 109 | extern int |
| 110 | inside_entry_func PARAMS ((CORE_ADDR)); |
| 111 | |
| 112 | extern int |
| 113 | inside_entry_file PARAMS ((CORE_ADDR addr)); |
| 114 | |
| 115 | extern int |
| 116 | inside_main_func PARAMS ((CORE_ADDR pc)); |
| 117 | |
| 118 | /* From ch-lang.c, for the moment. (FIXME) */ |
| 119 | |
| 120 | extern char * |
| 121 | chill_demangle PARAMS ((const char *)); |
| 122 | |
| 123 | /* From libiberty.a */ |
| 124 | |
| 125 | extern char * |
| 126 | cplus_demangle PARAMS ((const char *, int)); |
| 127 | |
| 128 | extern char * |
| 129 | cplus_mangle_opname PARAMS ((char *, int)); |
| 130 | |
| 131 | /* From libmmalloc.a (memory mapped malloc library) */ |
| 132 | |
| 133 | extern PTR |
| 134 | mmalloc_attach PARAMS ((int, PTR)); |
| 135 | |
| 136 | extern PTR |
| 137 | mmalloc_detach PARAMS ((PTR)); |
| 138 | |
| 139 | extern PTR |
| 140 | mmalloc PARAMS ((PTR, long)); |
| 141 | |
| 142 | extern PTR |
| 143 | mrealloc PARAMS ((PTR, PTR, long)); |
| 144 | |
| 145 | extern void |
| 146 | mfree PARAMS ((PTR, PTR)); |
| 147 | |
| 148 | extern int |
| 149 | mmalloc_setkey PARAMS ((PTR, int, PTR)); |
| 150 | |
| 151 | extern PTR |
| 152 | mmalloc_getkey PARAMS ((PTR, int)); |
| 153 | |
| 154 | /* From utils.c */ |
| 155 | |
| 156 | extern int |
| 157 | strcmp_iw PARAMS ((const char *, const char *)); |
| 158 | |
| 159 | extern char * |
| 160 | safe_strerror PARAMS ((int)); |
| 161 | |
| 162 | extern char * |
| 163 | safe_strsignal PARAMS ((int)); |
| 164 | |
| 165 | extern void |
| 166 | init_malloc PARAMS ((void *)); |
| 167 | |
| 168 | extern void |
| 169 | request_quit PARAMS ((int)); |
| 170 | |
| 171 | extern void |
| 172 | do_cleanups PARAMS ((struct cleanup *)); |
| 173 | |
| 174 | extern void |
| 175 | discard_cleanups PARAMS ((struct cleanup *)); |
| 176 | |
| 177 | /* The bare make_cleanup function is one of those rare beasts that |
| 178 | takes almost any type of function as the first arg and anything that |
| 179 | will fit in a "void *" as the second arg. |
| 180 | |
| 181 | Should be, once all calls and called-functions are cleaned up: |
| 182 | extern struct cleanup * |
| 183 | make_cleanup PARAMS ((void (*function) (void *), void *)); |
| 184 | |
| 185 | Until then, lint and/or various type-checking compiler options will |
| 186 | complain about make_cleanup calls. It'd be wrong to just cast things, |
| 187 | since the type actually passed when the function is called would be |
| 188 | wrong. */ |
| 189 | |
| 190 | extern struct cleanup * |
| 191 | make_cleanup (); |
| 192 | |
| 193 | extern struct cleanup * |
| 194 | save_cleanups PARAMS ((void)); |
| 195 | |
| 196 | extern void |
| 197 | restore_cleanups PARAMS ((struct cleanup *)); |
| 198 | |
| 199 | extern void |
| 200 | free_current_contents PARAMS ((char **)); |
| 201 | |
| 202 | extern void |
| 203 | null_cleanup PARAMS ((char **)); |
| 204 | |
| 205 | extern int |
| 206 | myread PARAMS ((int, char *, int)); |
| 207 | |
| 208 | extern int |
| 209 | query (); |
| 210 | |
| 211 | extern void |
| 212 | begin_line PARAMS ((void)); |
| 213 | |
| 214 | extern void |
| 215 | wrap_here PARAMS ((char *)); |
| 216 | |
| 217 | extern void |
| 218 | reinitialize_more_filter PARAMS ((void)); |
| 219 | |
| 220 | extern int |
| 221 | print_insn PARAMS ((CORE_ADDR, FILE *)); |
| 222 | |
| 223 | extern void |
| 224 | fputs_filtered PARAMS ((const char *, FILE *)); |
| 225 | |
| 226 | extern void |
| 227 | puts_filtered PARAMS ((char *)); |
| 228 | |
| 229 | extern void |
| 230 | vprintf_filtered (); |
| 231 | |
| 232 | extern void |
| 233 | vfprintf_filtered (); |
| 234 | |
| 235 | extern void |
| 236 | fprintf_filtered (); |
| 237 | |
| 238 | extern void |
| 239 | fprintfi_filtered (); |
| 240 | |
| 241 | extern void |
| 242 | printf_filtered (); |
| 243 | |
| 244 | extern void |
| 245 | printfi_filtered (); |
| 246 | |
| 247 | extern void |
| 248 | print_spaces PARAMS ((int, FILE *)); |
| 249 | |
| 250 | extern void |
| 251 | print_spaces_filtered PARAMS ((int, FILE *)); |
| 252 | |
| 253 | extern char * |
| 254 | n_spaces PARAMS ((int)); |
| 255 | |
| 256 | extern void |
| 257 | gdb_printchar PARAMS ((int, FILE *, int)); |
| 258 | |
| 259 | extern void |
| 260 | fprintf_symbol_filtered PARAMS ((FILE *, char *, enum language, int)); |
| 261 | |
| 262 | extern void |
| 263 | perror_with_name PARAMS ((char *)); |
| 264 | |
| 265 | extern void |
| 266 | print_sys_errmsg PARAMS ((char *, int)); |
| 267 | |
| 268 | /* From regex.c or libc. BSD 4.4 declares this with the argument type as |
| 269 | "const char *" in unistd.h, so we can't declare the argument |
| 270 | as "char *". */ |
| 271 | |
| 272 | extern char * |
| 273 | re_comp PARAMS ((const char *)); |
| 274 | |
| 275 | /* From symfile.c */ |
| 276 | |
| 277 | extern void |
| 278 | symbol_file_command PARAMS ((char *, int)); |
| 279 | |
| 280 | /* From main.c */ |
| 281 | |
| 282 | extern char * |
| 283 | skip_quoted PARAMS ((char *)); |
| 284 | |
| 285 | extern char * |
| 286 | gdb_readline PARAMS ((char *)); |
| 287 | |
| 288 | extern char * |
| 289 | command_line_input PARAMS ((char *, int)); |
| 290 | |
| 291 | extern void |
| 292 | print_prompt PARAMS ((void)); |
| 293 | |
| 294 | extern int |
| 295 | batch_mode PARAMS ((void)); |
| 296 | |
| 297 | extern int |
| 298 | input_from_terminal_p PARAMS ((void)); |
| 299 | |
| 300 | /* From printcmd.c */ |
| 301 | |
| 302 | extern void |
| 303 | set_next_address PARAMS ((CORE_ADDR)); |
| 304 | |
| 305 | extern void |
| 306 | print_address_symbolic PARAMS ((CORE_ADDR, FILE *, int, char *)); |
| 307 | |
| 308 | extern void |
| 309 | print_address PARAMS ((CORE_ADDR, FILE *)); |
| 310 | |
| 311 | /* From source.c */ |
| 312 | |
| 313 | extern int |
| 314 | openp PARAMS ((char *, int, char *, int, int, char **)); |
| 315 | |
| 316 | extern void |
| 317 | mod_path PARAMS ((char *, char **)); |
| 318 | |
| 319 | extern void |
| 320 | directory_command PARAMS ((char *, int)); |
| 321 | |
| 322 | extern void |
| 323 | init_source_path PARAMS ((void)); |
| 324 | |
| 325 | /* From findvar.c */ |
| 326 | |
| 327 | extern int |
| 328 | read_relative_register_raw_bytes PARAMS ((int, char *)); |
| 329 | |
| 330 | /* From readline (but not in any readline .h files). */ |
| 331 | |
| 332 | extern char * |
| 333 | tilde_expand PARAMS ((char *)); |
| 334 | |
| 335 | /* Structure for saved commands lines |
| 336 | (for breakpoints, defined commands, etc). */ |
| 337 | |
| 338 | struct command_line |
| 339 | { |
| 340 | struct command_line *next; |
| 341 | char *line; |
| 342 | }; |
| 343 | |
| 344 | extern struct command_line * |
| 345 | read_command_lines PARAMS ((void)); |
| 346 | |
| 347 | extern void |
| 348 | free_command_lines PARAMS ((struct command_line **)); |
| 349 | |
| 350 | /* String containing the current directory (what getwd would return). */ |
| 351 | |
| 352 | extern char *current_directory; |
| 353 | |
| 354 | /* Default radixes for input and output. Only some values supported. */ |
| 355 | extern unsigned input_radix; |
| 356 | extern unsigned output_radix; |
| 357 | |
| 358 | /* Possibilities for prettyprint parameters to routines which print |
| 359 | things. Like enum language, this should be in value.h, but needs |
| 360 | to be here for the same reason. FIXME: If we can eliminate this |
| 361 | as an arg to LA_VAL_PRINT, then we can probably move it back to |
| 362 | value.h. */ |
| 363 | |
| 364 | enum val_prettyprint |
| 365 | { |
| 366 | Val_no_prettyprint = 0, |
| 367 | Val_prettyprint, |
| 368 | /* Use the default setting which the user has specified. */ |
| 369 | Val_pretty_default |
| 370 | }; |
| 371 | |
| 372 | \f |
| 373 | /* Host machine definition. This will be a symlink to one of the |
| 374 | xm-*.h files, built by the `configure' script. */ |
| 375 | |
| 376 | #include "xm.h" |
| 377 | |
| 378 | /* Native machine support. This will be a symlink to one of the |
| 379 | nm-*.h files, built by the `configure' script. */ |
| 380 | |
| 381 | #include "nm.h" |
| 382 | |
| 383 | /* If the xm.h file did not define the mode string used to open the |
| 384 | files, assume that binary files are opened the same way as text |
| 385 | files */ |
| 386 | #ifndef FOPEN_RB |
| 387 | #include "fopen-same.h" |
| 388 | #endif |
| 389 | |
| 390 | /* |
| 391 | * Allow things in gdb to be declared "const". If compiling ANSI, it |
| 392 | * just works. If compiling with gcc but non-ansi, redefine to __const__. |
| 393 | * If non-ansi, non-gcc, then eliminate "const" entirely, making those |
| 394 | * objects be read-write rather than read-only. |
| 395 | */ |
| 396 | |
| 397 | #ifndef const |
| 398 | #ifndef __STDC__ |
| 399 | # ifdef __GNUC__ |
| 400 | # define const __const__ |
| 401 | # else |
| 402 | # define const /*nothing*/ |
| 403 | # endif /* GNUC */ |
| 404 | #endif /* STDC */ |
| 405 | #endif /* const */ |
| 406 | |
| 407 | #ifndef volatile |
| 408 | #ifndef __STDC__ |
| 409 | # ifdef __GNUC__ |
| 410 | # define volatile __volatile__ |
| 411 | # else |
| 412 | # define volatile /*nothing*/ |
| 413 | # endif /* GNUC */ |
| 414 | #endif /* STDC */ |
| 415 | #endif /* volatile */ |
| 416 | |
| 417 | #if 1 |
| 418 | #define NORETURN /*nothing*/ |
| 419 | #else /* not 1 */ |
| 420 | /* FIXME: This is bogus. Having "volatile void" mean a function doesn't |
| 421 | return is a gcc extension and should be based on #ifdef __GNUC__. |
| 422 | Also, as of Sep 93 I'm told gcc is changing the syntax for ansi |
| 423 | reasons (so declaring exit here as "volatile void" and as "void" in |
| 424 | a system header loses). Using the new "__attributes__ ((noreturn));" |
| 425 | syntax would lose for old versions of gcc; using |
| 426 | typedef void exit_fn_type PARAMS ((int)); |
| 427 | volatile exit_fn_type exit; |
| 428 | would win. */ |
| 429 | /* Some compilers (many AT&T SVR4 compilers for instance), do not accept |
| 430 | declarations of functions that never return (exit for instance) as |
| 431 | "volatile void". For such compilers "NORETURN" can be defined away |
| 432 | to keep them happy */ |
| 433 | |
| 434 | #ifndef NORETURN |
| 435 | # ifdef __lucid |
| 436 | # define NORETURN /*nothing*/ |
| 437 | # else |
| 438 | # define NORETURN volatile |
| 439 | # endif |
| 440 | #endif |
| 441 | #endif /* not 1 */ |
| 442 | |
| 443 | /* Defaults for system-wide constants (if not defined by xm.h, we fake it). */ |
| 444 | |
| 445 | #if !defined (UINT_MAX) |
| 446 | #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */ |
| 447 | #endif |
| 448 | |
| 449 | #if !defined (INT_MAX) |
| 450 | #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */ |
| 451 | #endif |
| 452 | |
| 453 | #if !defined (INT_MIN) |
| 454 | #define INT_MIN (-INT_MAX - 1) /* 0x80000000 for 32-bits */ |
| 455 | #endif |
| 456 | |
| 457 | #if !defined (ULONG_MAX) |
| 458 | #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */ |
| 459 | #endif |
| 460 | |
| 461 | #if !defined (LONG_MAX) |
| 462 | #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */ |
| 463 | #endif |
| 464 | |
| 465 | /* Number of bits in a char or unsigned char for the target machine. |
| 466 | Just like CHAR_BIT in <limits.h> but describes the target machine. */ |
| 467 | #if !defined (TARGET_CHAR_BIT) |
| 468 | #define TARGET_CHAR_BIT 8 |
| 469 | #endif |
| 470 | |
| 471 | /* Number of bits in a short or unsigned short for the target machine. */ |
| 472 | #if !defined (TARGET_SHORT_BIT) |
| 473 | #define TARGET_SHORT_BIT (sizeof (short) * TARGET_CHAR_BIT) |
| 474 | #endif |
| 475 | |
| 476 | /* Number of bits in an int or unsigned int for the target machine. */ |
| 477 | #if !defined (TARGET_INT_BIT) |
| 478 | #define TARGET_INT_BIT (sizeof (int) * TARGET_CHAR_BIT) |
| 479 | #endif |
| 480 | |
| 481 | /* Number of bits in a long or unsigned long for the target machine. */ |
| 482 | #if !defined (TARGET_LONG_BIT) |
| 483 | #define TARGET_LONG_BIT (sizeof (long) * TARGET_CHAR_BIT) |
| 484 | #endif |
| 485 | |
| 486 | /* Number of bits in a long long or unsigned long long for the target machine. */ |
| 487 | #if !defined (TARGET_LONG_LONG_BIT) |
| 488 | #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT) |
| 489 | #endif |
| 490 | |
| 491 | /* Number of bits in a float for the target machine. */ |
| 492 | #if !defined (TARGET_FLOAT_BIT) |
| 493 | #define TARGET_FLOAT_BIT (sizeof (float) * TARGET_CHAR_BIT) |
| 494 | #endif |
| 495 | |
| 496 | /* Number of bits in a double for the target machine. */ |
| 497 | #if !defined (TARGET_DOUBLE_BIT) |
| 498 | #define TARGET_DOUBLE_BIT (sizeof (double) * TARGET_CHAR_BIT) |
| 499 | #endif |
| 500 | |
| 501 | /* Number of bits in a long double for the target machine. */ |
| 502 | #if !defined (TARGET_LONG_DOUBLE_BIT) |
| 503 | #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT) |
| 504 | #endif |
| 505 | |
| 506 | /* Number of bits in a "complex" for the target machine. */ |
| 507 | #if !defined (TARGET_COMPLEX_BIT) |
| 508 | #define TARGET_COMPLEX_BIT (2 * TARGET_FLOAT_BIT) |
| 509 | #endif |
| 510 | |
| 511 | /* Number of bits in a "double complex" for the target machine. */ |
| 512 | #if !defined (TARGET_DOUBLE_COMPLEX_BIT) |
| 513 | #define TARGET_DOUBLE_COMPLEX_BIT (2 * TARGET_DOUBLE_BIT) |
| 514 | #endif |
| 515 | |
| 516 | /* Number of bits in a pointer for the target machine */ |
| 517 | #if !defined (TARGET_PTR_BIT) |
| 518 | #define TARGET_PTR_BIT TARGET_INT_BIT |
| 519 | #endif |
| 520 | |
| 521 | /* Default to support for "long long" if the host compiler being used is gcc. |
| 522 | Config files must define CC_HAS_LONG_LONG to use other host compilers |
| 523 | that are capable of supporting "long long", and to cause gdb to use that |
| 524 | support. Not defining CC_HAS_LONG_LONG will suppress use of "long long" |
| 525 | regardless of what compiler is used. |
| 526 | |
| 527 | FIXME: For now, automatic selection of "long long" as the default when |
| 528 | gcc is used is disabled, pending further testing. Concerns include the |
| 529 | impact on gdb performance and the universality of bugfree long long |
| 530 | support on platforms that do have gcc. Compiling with FORCE_LONG_LONG |
| 531 | will select "long long" use for testing purposes. -fnf */ |
| 532 | |
| 533 | #ifndef CC_HAS_LONG_LONG |
| 534 | # if defined (__GNUC__) && defined (FORCE_LONG_LONG) /* See FIXME above */ |
| 535 | # define CC_HAS_LONG_LONG 1 |
| 536 | # endif |
| 537 | #endif |
| 538 | |
| 539 | /* LONGEST should not be a typedef, because "unsigned LONGEST" needs to work. |
| 540 | CC_HAS_LONG_LONG is defined if the host compiler supports "long long" |
| 541 | variables and we wish to make use of that support. */ |
| 542 | |
| 543 | #ifndef LONGEST |
| 544 | # ifdef CC_HAS_LONG_LONG |
| 545 | # define LONGEST long long |
| 546 | # else |
| 547 | # define LONGEST long |
| 548 | # endif |
| 549 | #endif |
| 550 | |
| 551 | /* Convert a LONGEST to an int. This is used in contexts (e.g. number of |
| 552 | arguments to a function, number in a value history, register number, etc.) |
| 553 | where the value must not be larger than can fit in an int. */ |
| 554 | |
| 555 | #ifndef longest_to_int |
| 556 | # ifdef CC_HAS_LONG_LONG |
| 557 | # define longest_to_int(x) (((x) > INT_MAX || (x) < INT_MIN) \ |
| 558 | ? (error ("Value out of range."),0) : (int) (x)) |
| 559 | # else |
| 560 | /* Assume sizeof (int) == sizeof (long). */ |
| 561 | # define longest_to_int(x) ((int) (x)) |
| 562 | # endif |
| 563 | #endif |
| 564 | |
| 565 | /* If we picked up a copy of CHAR_BIT from a configuration file |
| 566 | (which may get it by including <limits.h>) then use it to set |
| 567 | the number of bits in a host char. If not, use the same size |
| 568 | as the target. */ |
| 569 | |
| 570 | #if defined (CHAR_BIT) |
| 571 | #define HOST_CHAR_BIT CHAR_BIT |
| 572 | #else |
| 573 | #define HOST_CHAR_BIT TARGET_CHAR_BIT |
| 574 | #endif |
| 575 | |
| 576 | /* Assorted functions we can declare, now that const and volatile are |
| 577 | defined. */ |
| 578 | |
| 579 | extern char * |
| 580 | savestring PARAMS ((const char *, int)); |
| 581 | |
| 582 | extern char * |
| 583 | msavestring PARAMS ((void *, const char *, int)); |
| 584 | |
| 585 | extern char * |
| 586 | strsave PARAMS ((const char *)); |
| 587 | |
| 588 | extern char * |
| 589 | mstrsave PARAMS ((void *, const char *)); |
| 590 | |
| 591 | extern char * |
| 592 | concat PARAMS ((char *, ...)); |
| 593 | |
| 594 | extern PTR |
| 595 | xmalloc PARAMS ((long)); |
| 596 | |
| 597 | extern PTR |
| 598 | xrealloc PARAMS ((PTR, long)); |
| 599 | |
| 600 | extern PTR |
| 601 | xmmalloc PARAMS ((PTR, long)); |
| 602 | |
| 603 | extern PTR |
| 604 | xmrealloc PARAMS ((PTR, PTR, long)); |
| 605 | |
| 606 | extern PTR |
| 607 | mmalloc PARAMS ((PTR, long)); |
| 608 | |
| 609 | extern PTR |
| 610 | mrealloc PARAMS ((PTR, PTR, long)); |
| 611 | |
| 612 | extern void |
| 613 | mfree PARAMS ((PTR, PTR)); |
| 614 | |
| 615 | extern int |
| 616 | mmcheck PARAMS ((PTR, void (*) (void))); |
| 617 | |
| 618 | extern int |
| 619 | mmtrace PARAMS ((void)); |
| 620 | |
| 621 | extern int |
| 622 | parse_escape PARAMS ((char **)); |
| 623 | |
| 624 | extern const char * const reg_names[]; |
| 625 | |
| 626 | extern NORETURN void /* Does not return to the caller. */ |
| 627 | error (); |
| 628 | |
| 629 | extern NORETURN void /* Does not return to the caller. */ |
| 630 | fatal (); |
| 631 | |
| 632 | extern NORETURN void /* Not specified as volatile in ... */ |
| 633 | exit PARAMS ((int)); /* 4.10.4.3 */ |
| 634 | |
| 635 | extern NORETURN void /* Does not return to the caller. */ |
| 636 | nomem PARAMS ((long)); |
| 637 | |
| 638 | /* Reasons for calling return_to_top_level. */ |
| 639 | enum return_reason { |
| 640 | /* User interrupt. */ |
| 641 | RETURN_QUIT, |
| 642 | |
| 643 | /* Any other error. */ |
| 644 | RETURN_ERROR |
| 645 | }; |
| 646 | |
| 647 | #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT) |
| 648 | #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR) |
| 649 | #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR) |
| 650 | typedef int return_mask; |
| 651 | |
| 652 | extern NORETURN void /* Does not return to the caller. */ |
| 653 | return_to_top_level PARAMS ((enum return_reason)); |
| 654 | |
| 655 | extern int catch_errors PARAMS ((int (*) (char *), void *, char *, |
| 656 | return_mask)); |
| 657 | |
| 658 | extern void |
| 659 | warning_setup PARAMS ((void)); |
| 660 | |
| 661 | extern void |
| 662 | warning (); |
| 663 | |
| 664 | /* Global functions from other, non-gdb GNU thingies (libiberty for |
| 665 | instance) */ |
| 666 | |
| 667 | extern char * |
| 668 | basename PARAMS ((char *)); |
| 669 | |
| 670 | extern char * |
| 671 | getenv PARAMS ((const char *)); |
| 672 | |
| 673 | extern char ** |
| 674 | buildargv PARAMS ((char *)); |
| 675 | |
| 676 | extern void |
| 677 | freeargv PARAMS ((char **)); |
| 678 | |
| 679 | extern char * |
| 680 | strerrno PARAMS ((int)); |
| 681 | |
| 682 | extern char * |
| 683 | strsigno PARAMS ((int)); |
| 684 | |
| 685 | extern int |
| 686 | errno_max PARAMS ((void)); |
| 687 | |
| 688 | extern int |
| 689 | signo_max PARAMS ((void)); |
| 690 | |
| 691 | extern int |
| 692 | strtoerrno PARAMS ((char *)); |
| 693 | |
| 694 | extern int |
| 695 | strtosigno PARAMS ((char *)); |
| 696 | |
| 697 | extern char * |
| 698 | strsignal PARAMS ((int)); |
| 699 | |
| 700 | /* From other system libraries */ |
| 701 | |
| 702 | #ifndef PSIGNAL_IN_SIGNAL_H |
| 703 | extern void |
| 704 | psignal PARAMS ((unsigned, const char *)); |
| 705 | #endif |
| 706 | |
| 707 | /* For now, we can't include <stdlib.h> because it conflicts with |
| 708 | "../include/getopt.h". (FIXME) |
| 709 | |
| 710 | However, if a function is defined in the ANSI C standard and a prototype |
| 711 | for that function is defined and visible in any header file in an ANSI |
| 712 | conforming environment, then that prototype must match the definition in |
| 713 | the ANSI standard. So we can just duplicate them here without conflict, |
| 714 | since they must be the same in all conforming ANSI environments. If |
| 715 | these cause problems, then the environment is not ANSI conformant. */ |
| 716 | |
| 717 | #ifdef __STDC__ |
| 718 | #include <stddef.h> |
| 719 | #endif |
| 720 | |
| 721 | extern int |
| 722 | fclose PARAMS ((FILE *stream)); /* 4.9.5.1 */ |
| 723 | |
| 724 | extern void |
| 725 | perror PARAMS ((const char *)); /* 4.9.10.4 */ |
| 726 | |
| 727 | extern double |
| 728 | atof PARAMS ((const char *nptr)); /* 4.10.1.1 */ |
| 729 | |
| 730 | extern int |
| 731 | atoi PARAMS ((const char *)); /* 4.10.1.2 */ |
| 732 | |
| 733 | #ifndef MALLOC_INCOMPATIBLE |
| 734 | |
| 735 | extern PTR |
| 736 | malloc PARAMS ((size_t size)); /* 4.10.3.3 */ |
| 737 | |
| 738 | extern PTR |
| 739 | realloc PARAMS ((void *ptr, size_t size)); /* 4.10.3.4 */ |
| 740 | |
| 741 | extern void |
| 742 | free PARAMS ((void *)); /* 4.10.3.2 */ |
| 743 | |
| 744 | #endif /* MALLOC_INCOMPATIBLE */ |
| 745 | |
| 746 | extern void |
| 747 | qsort PARAMS ((void *base, size_t nmemb, /* 4.10.5.2 */ |
| 748 | size_t size, |
| 749 | int (*comp)(const void *, const void *))); |
| 750 | |
| 751 | #ifndef MEM_FNS_DECLARED /* Some non-ANSI use void *, not char *. */ |
| 752 | extern PTR |
| 753 | memcpy PARAMS ((void *, const void *, size_t)); /* 4.11.2.1 */ |
| 754 | |
| 755 | extern int |
| 756 | memcmp PARAMS ((const void *, const void *, size_t)); /* 4.11.4.1 */ |
| 757 | #endif |
| 758 | |
| 759 | extern char * |
| 760 | strchr PARAMS ((const char *, int)); /* 4.11.5.2 */ |
| 761 | |
| 762 | extern char * |
| 763 | strrchr PARAMS ((const char *, int)); /* 4.11.5.5 */ |
| 764 | |
| 765 | extern char * |
| 766 | strstr PARAMS ((const char *, const char *)); /* 4.11.5.7 */ |
| 767 | |
| 768 | extern char * |
| 769 | strtok PARAMS ((char *, const char *)); /* 4.11.5.8 */ |
| 770 | |
| 771 | #ifndef MEM_FNS_DECLARED /* Some non-ANSI use void *, not char *. */ |
| 772 | extern PTR |
| 773 | memset PARAMS ((void *, int, size_t)); /* 4.11.6.1 */ |
| 774 | #endif |
| 775 | |
| 776 | extern char * |
| 777 | strerror PARAMS ((int)); /* 4.11.6.2 */ |
| 778 | |
| 779 | /* Various possibilities for alloca. */ |
| 780 | #ifndef alloca |
| 781 | # ifdef __GNUC__ |
| 782 | # define alloca __builtin_alloca |
| 783 | # else |
| 784 | # ifdef sparc |
| 785 | # include <alloca.h> /* NOTE: Doesn't declare alloca() */ |
| 786 | # endif |
| 787 | # ifdef __STDC__ |
| 788 | extern void *alloca (size_t); |
| 789 | # else /* __STDC__ */ |
| 790 | extern char *alloca (); |
| 791 | # endif |
| 792 | # endif |
| 793 | #endif |
| 794 | |
| 795 | /* TARGET_BYTE_ORDER and HOST_BYTE_ORDER must be defined to one of these. */ |
| 796 | |
| 797 | #if !defined (BIG_ENDIAN) |
| 798 | #define BIG_ENDIAN 4321 |
| 799 | #endif |
| 800 | |
| 801 | #if !defined (LITTLE_ENDIAN) |
| 802 | #define LITTLE_ENDIAN 1234 |
| 803 | #endif |
| 804 | |
| 805 | /* Target-system-dependent parameters for GDB. */ |
| 806 | |
| 807 | /* Target machine definition. This will be a symlink to one of the |
| 808 | tm-*.h files, built by the `configure' script. */ |
| 809 | |
| 810 | #include "tm.h" |
| 811 | |
| 812 | /* The bit byte-order has to do just with numbering of bits in |
| 813 | debugging symbols and such. Conceptually, it's quite separate |
| 814 | from byte/word byte order. */ |
| 815 | |
| 816 | #if !defined (BITS_BIG_ENDIAN) |
| 817 | #if TARGET_BYTE_ORDER == BIG_ENDIAN |
| 818 | #define BITS_BIG_ENDIAN 1 |
| 819 | #endif /* Big endian. */ |
| 820 | |
| 821 | #if TARGET_BYTE_ORDER == LITTLE_ENDIAN |
| 822 | #define BITS_BIG_ENDIAN 0 |
| 823 | #endif /* Little endian. */ |
| 824 | #endif /* BITS_BIG_ENDIAN not defined. */ |
| 825 | |
| 826 | /* Swap LEN bytes at BUFFER between target and host byte-order. This is |
| 827 | the wrong way to do byte-swapping because it assumes that you have a way |
| 828 | to have a host variable of exactly the right size. |
| 829 | extract_* are the right way. */ |
| 830 | #if TARGET_BYTE_ORDER == HOST_BYTE_ORDER |
| 831 | #define SWAP_TARGET_AND_HOST(buffer,len) |
| 832 | #else /* Target and host byte order differ. */ |
| 833 | #define SWAP_TARGET_AND_HOST(buffer,len) \ |
| 834 | { \ |
| 835 | char tmp; \ |
| 836 | char *p = (char *)(buffer); \ |
| 837 | char *q = ((char *)(buffer)) + len - 1; \ |
| 838 | for (; p < q; p++, q--) \ |
| 839 | { \ |
| 840 | tmp = *q; \ |
| 841 | *q = *p; \ |
| 842 | *p = tmp; \ |
| 843 | } \ |
| 844 | } |
| 845 | #endif /* Target and host byte order differ. */ |
| 846 | |
| 847 | /* In findvar.c. */ |
| 848 | LONGEST extract_signed_integer PARAMS ((void *, int)); |
| 849 | unsigned LONGEST extract_unsigned_integer PARAMS ((void *, int)); |
| 850 | CORE_ADDR extract_address PARAMS ((void *, int)); |
| 851 | |
| 852 | void store_signed_integer PARAMS ((void *, int, LONGEST)); |
| 853 | void store_unsigned_integer PARAMS ((void *, int, unsigned LONGEST)); |
| 854 | void store_address PARAMS ((void *, int, CORE_ADDR)); |
| 855 | \f |
| 856 | /* On some machines there are bits in addresses which are not really |
| 857 | part of the address, but are used by the kernel, the hardware, etc. |
| 858 | for special purposes. ADDR_BITS_REMOVE takes out any such bits |
| 859 | so we get a "real" address such as one would find in a symbol |
| 860 | table. ADDR_BITS_SET sets those bits the way the system wants |
| 861 | them. This is used only for addresses of instructions, and even then |
| 862 | I'm not sure it's used in all contexts. It exists to deal with there |
| 863 | being a few stray bits in the PC which would mislead us, not as some sort |
| 864 | of generic thing to handle alignment or segmentation. */ |
| 865 | #if !defined (ADDR_BITS_REMOVE) |
| 866 | #define ADDR_BITS_REMOVE(addr) (addr) |
| 867 | #define ADDR_BITS_SET(addr) (addr) |
| 868 | #endif /* No ADDR_BITS_REMOVE. */ |
| 869 | |
| 870 | /* From valops.c */ |
| 871 | |
| 872 | extern CORE_ADDR |
| 873 | push_bytes PARAMS ((CORE_ADDR, char *, int)); |
| 874 | |
| 875 | /* In some modules, we don't have a definition of REGISTER_TYPE yet, so we |
| 876 | must avoid prototyping this function for now. FIXME. Should be: |
| 877 | extern CORE_ADDR |
| 878 | push_word PARAMS ((CORE_ADDR, REGISTER_TYPE)); |
| 879 | */ |
| 880 | extern CORE_ADDR |
| 881 | push_word (); |
| 882 | |
| 883 | /* Some parts of gdb might be considered optional, in the sense that they |
| 884 | are not essential for being able to build a working, usable debugger |
| 885 | for a specific environment. For example, the maintenance commands |
| 886 | are there for the benefit of gdb maintainers. As another example, |
| 887 | some environments really don't need gdb's that are able to read N |
| 888 | different object file formats. In order to make it possible (but |
| 889 | not necessarily recommended) to build "stripped down" versions of |
| 890 | gdb, the following defines control selective compilation of those |
| 891 | parts of gdb which can be safely left out when necessary. Note that |
| 892 | the default is to include everything. */ |
| 893 | |
| 894 | #ifndef MAINTENANCE_CMDS |
| 895 | #define MAINTENANCE_CMDS 1 |
| 896 | #endif |
| 897 | |
| 898 | #endif /* !defined (DEFS_H) */ |