1 /* Basic, host-specific, and target-specific definitions for GDB.
2 Copyright (C) 1986, 1989, 1991 Free Software Foundation, Inc.
4 This file is part of GDB.
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.
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.
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. */
25 /* First include ansidecl.h so we can use the various macro definitions
26 in all subsequent file inclusions. FIXME: This inclusion can now
27 be removed from all files that include defs.h */
31 /* We could use the EXFUN macro in ansidecl.h to handle prototypes, but
32 the name is misleading the the result is ugly. So just define a simple
33 macro to handle the parameter lists. */
36 #define PARAMS(paramlist) paramlist
38 #define PARAMS(paramlist) ()
41 /* An address in the program being debugged. Host byte order. */
42 typedef unsigned int CORE_ADDR
;
44 #define min(a, b) ((a) < (b) ? (a) : (b))
45 #define max(a, b) ((a) > (b) ? (a) : (b))
47 /* The character C++ uses to build identifiers that must be unique from
48 the program's identifiers (such as $this and $$vptr). */
49 #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
51 extern int errno
; /* System call error return status */
54 extern int immediate_quit
;
59 #define QUIT { if (quit_flag) quit (); }
61 /* Notes on classes: class_alias is for alias commands which are not
62 abbreviations of the original command. */
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
74 /* the cleanup list records things that have to be undone
75 if an error happens (descriptors to be closed, memory to be freed, etc.)
76 Each link in the chain records a function to call and an
79 Use make_cleanup to add an element to the cleanup chain.
80 Use do_cleanups to do all cleanup actions back to a given
81 point in the chain. Use discard_cleanups to remove cleanups
82 from the chain back to a given point, not doing them. */
87 void (*function
) PARAMS ((PTR
));
91 /* From blockframe.c */
94 inside_entry_scope
PARAMS ((CORE_ADDR
));
97 outside_startup_file
PARAMS ((CORE_ADDR addr
));
100 inside_main_scope
PARAMS ((CORE_ADDR pc
));
102 /* From cplus-dem.c */
105 cplus_demangle
PARAMS ((const char *, int));
108 cplus_mangle_opname
PARAMS ((char *, int));
113 mmap_malloc
PARAMS ((long));
116 mmap_realloc
PARAMS ((PTR
, long));
119 mmap_xmalloc
PARAMS ((long));
122 mmap_xrealloc
PARAMS ((PTR
, long));
125 mmap_free
PARAMS ((PTR
));
128 mmap_sbrk
PARAMS ((int));
131 mmap_base
PARAMS ((void));
134 mmap_page_align
PARAMS ((PTR
));
137 mmap_remap
PARAMS ((PTR
, long, int, long));
142 init_malloc
PARAMS ((void));
145 request_quit
PARAMS ((int));
148 do_cleanups
PARAMS ((struct cleanup
*));
151 discard_cleanups
PARAMS ((struct cleanup
*));
153 /* The bare make_cleanup function is one of those rare beasts that
154 takes almost any type of function as the first arg and anything that
155 will fit in a "void *" as the second arg.
157 Should be, once all calls and called-functions are cleaned up:
158 extern struct cleanup *
159 make_cleanup PARAMS ((void (*function) (PTR), PTR));
161 Until then, lint and/or various type-checking compiler options will
162 complain about make_cleanup calls. It'd be wrong to just cast things,
163 since the type actually passed when the function is called would be
166 extern struct cleanup
*
169 extern struct cleanup
*
170 save_cleanups
PARAMS ((void));
173 restore_cleanups
PARAMS ((struct cleanup
*));
176 free_current_contents
PARAMS ((char **));
179 null_cleanup
PARAMS ((char **));
182 myread
PARAMS ((int, char *, int));
188 wrap_here
PARAMS ((char *));
191 reinitialize_more_filter
PARAMS ((void));
194 print_insn
PARAMS ((CORE_ADDR
, FILE *));
197 fputs_filtered
PARAMS ((const char *, FILE *));
200 puts_filtered
PARAMS ((char *));
209 print_spaces
PARAMS ((int, FILE *));
212 print_spaces_filtered
PARAMS ((int, FILE *));
215 n_spaces
PARAMS ((int));
218 printchar
PARAMS ((int, FILE *, int));
221 fprint_symbol
PARAMS ((FILE *, char *));
224 fputs_demangled
PARAMS ((char *, FILE *, int));
227 perror_with_name
PARAMS ((char *));
230 print_sys_errmsg
PARAMS ((char *, int));
235 re_comp
PARAMS ((char *));
240 symbol_file_command
PARAMS ((char *, int));
245 gdb_readline
PARAMS ((char *));
248 command_line_input
PARAMS ((char *, int));
251 print_prompt
PARAMS ((void));
254 batch_mode
PARAMS ((void));
257 input_from_terminal_p
PARAMS ((void));
260 catch_errors
PARAMS ((int (*) (char *), char *, char *));
262 /* From printcmd.c */
265 set_next_address
PARAMS ((CORE_ADDR
));
268 print_address_symbolic
PARAMS ((CORE_ADDR
, FILE *, int, char *));
271 print_address
PARAMS ((CORE_ADDR
, FILE *));
276 openp
PARAMS ((char *, int, char *, int, int, char **));
279 mod_path
PARAMS ((char *, char **));
282 directory_command
PARAMS ((char *, int));
285 init_source_path
PARAMS ((void));
290 read_relative_register_raw_bytes
PARAMS ((int, char *));
292 /* From readline (but not in any readline .h files). */
295 tilde_expand
PARAMS ((char *));
297 /* Structure for saved commands lines
298 (for breakpoints, defined commands, etc). */
302 struct command_line
*next
;
306 extern struct command_line
*
307 read_command_lines
PARAMS ((void));
310 free_command_lines
PARAMS ((struct command_line
**));
312 /* String containing the current directory (what getwd would return). */
314 extern char *current_directory
;
316 /* Default radixes for input and output. Only some values supported. */
317 extern unsigned input_radix
;
318 extern unsigned output_radix
;
320 /* Baud rate specified for communication with serial target systems. */
321 extern char *baud_rate
;
323 /* Languages represented in the symbol table and elsewhere. */
327 language_unknown
, /* Language not known */
328 language_auto
, /* Placeholder for automatic setting */
330 language_cplus
, /* C++ */
331 language_m2
/* Modula-2 */
334 /* Return a format string for printf that will print a number in the local
335 (language-specific) hexadecimal format. Result is static and is
336 overwritten by the next call. local_hex_format_custom takes printf
337 options like "08" or "l" (to produce e.g. %08x or %lx). */
339 #define local_hex_format() (current_language->la_hex_format)
342 local_hex_format_custom
PARAMS ((char *)); /* language.c */
344 /* Return a string that contains a number formatted in the local
345 (language-specific) hexadecimal format. Result is static and is
346 overwritten by the next call. local_hex_string_custom takes printf
347 options like "08" or "l". */
350 local_hex_string
PARAMS ((int)); /* language.c */
353 local_hex_string_custom
PARAMS ((int, char *)); /* language.c */
356 /* Host machine definition. This will be a symlink to one of the
357 xm-*.h files, built by the `configure' script. */
362 * Allow things in gdb to be declared "const". If compiling ANSI, it
363 * just works. If compiling with gcc but non-ansi, redefine to __const__.
364 * If non-ansi, non-gcc, then eliminate "const" entirely, making those
365 * objects be read-write rather than read-only.
371 # define const __const__
373 # define const /*nothing*/
381 # define volatile __volatile__
383 # define volatile /*nothing*/
386 #endif /* volatile */
388 /* Some compilers (many AT&T SVR4 compilers for instance), do not accept
389 declarations of functions that never return (exit for instance) as
390 "volatile void". For such compilers "NORETURN" can be defined away
391 to keep them happy */
394 # define NORETURN volatile
397 /* Defaults for system-wide constants (if not defined by xm.h, we fake it). */
399 #if !defined (UINT_MAX)
400 #define UINT_MAX 0xffffffff
403 #if !defined (LONG_MAX)
404 #define LONG_MAX 0x7fffffff
407 #if !defined (INT_MAX)
408 #define INT_MAX 0x7fffffff
411 #if !defined (INT_MIN)
412 /* Two's complement, 32 bit. */
413 #define INT_MIN -0x80000000
416 /* Number of bits in a char or unsigned char for the target machine.
417 Just like CHAR_BIT in <limits.h> but describes the target machine. */
418 #if !defined (TARGET_CHAR_BIT)
419 #define TARGET_CHAR_BIT 8
422 /* Number of bits in a short or unsigned short for the target machine. */
423 #if !defined (TARGET_SHORT_BIT)
424 #define TARGET_SHORT_BIT (sizeof (short) * TARGET_CHAR_BIT)
427 /* Number of bits in an int or unsigned int for the target machine. */
428 #if !defined (TARGET_INT_BIT)
429 #define TARGET_INT_BIT (sizeof (int) * TARGET_CHAR_BIT)
432 /* Number of bits in a long or unsigned long for the target machine. */
433 #if !defined (TARGET_LONG_BIT)
434 #define TARGET_LONG_BIT (sizeof (long) * TARGET_CHAR_BIT)
437 /* Number of bits in a long long or unsigned long long for the target machine. */
438 #if !defined (TARGET_LONG_LONG_BIT)
439 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
442 /* Number of bits in a float for the target machine. */
443 #if !defined (TARGET_FLOAT_BIT)
444 #define TARGET_FLOAT_BIT (sizeof (float) * TARGET_CHAR_BIT)
447 /* Number of bits in a double for the target machine. */
448 #if !defined (TARGET_DOUBLE_BIT)
449 #define TARGET_DOUBLE_BIT (sizeof (double) * TARGET_CHAR_BIT)
452 /* Number of bits in a long double for the target machine. */
453 #if !defined (TARGET_LONG_DOUBLE_BIT)
454 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
457 /* Number of bits in a "complex" for the target machine. */
458 #if !defined (TARGET_COMPLEX_BIT)
459 #define TARGET_COMPLEX_BIT (2 * TARGET_FLOAT_BIT)
462 /* Number of bits in a "double complex" for the target machine. */
463 #if !defined (TARGET_DOUBLE_COMPLEX_BIT)
464 #define TARGET_DOUBLE_COMPLEX_BIT (2 * TARGET_DOUBLE_BIT)
467 /* Number of bits in a pointer for the target machine */
468 #if !defined (TARGET_PTR_BIT)
469 #define TARGET_PTR_BIT TARGET_INT_BIT
472 /* Convert a LONGEST to an int. This is used in contexts (e.g. number
473 of arguments to a function, number in a value history, register
474 number, etc.) where the value must not be larger than can fit
476 #if !defined (longest_to_int)
477 #if defined (LONG_LONG)
478 #define longest_to_int(x) (((x) > INT_MAX || (x) < INT_MIN) \
479 ? error ("Value out of range.") : (int) (x))
480 #else /* No LONG_LONG. */
481 /* Assume sizeof (int) == sizeof (long). */
482 #define longest_to_int(x) ((int) (x))
483 #endif /* No LONG_LONG. */
484 #endif /* No longest_to_int. */
486 /* This should not be a typedef, because "unsigned LONGEST" needs
487 to work. LONG_LONG is defined if the host has "long long". */
491 # define LONGEST long long
493 # define LONGEST long
497 /* Assorted functions we can declare, now that const and volatile are
501 savestring
PARAMS ((const char *, int));
504 strsave
PARAMS ((const char *));
507 concat
PARAMS ((char *, ...));
510 xmalloc
PARAMS ((long));
513 xrealloc
PARAMS ((char *, long));
516 parse_escape
PARAMS ((char **));
518 extern char *reg_names
[];
520 extern NORETURN
void /* Does not return to the caller. */
523 extern NORETURN
void /* Does not return to the caller. */
526 extern NORETURN
void /* Not specified as volatile in ... */
527 exit
PARAMS ((int)); /* 4.10.4.3 */
529 extern NORETURN
void /* Does not return to the caller. */
530 return_to_top_level
PARAMS ((void));
533 warning_setup
PARAMS ((void));
538 /* Global functions from other, non-gdb GNU thingies (libiberty for
542 basename
PARAMS ((char *));
545 getenv
PARAMS ((CONST
char *));
548 buildargv
PARAMS ((char *));
551 freeargv
PARAMS ((char **));
553 /* For now, we can't include <stdlib.h> because it conflicts with
554 "../include/getopt.h". (FIXME)
556 However, since any prototypes for any functions defined in the ANSI
557 specific, defined in any header files in an ANSI conforming environment,
558 must match those in the ANSI standard, we can just duplicate them here
559 since they must be the same in all conforming ANSI environments. If
560 these cause problems, then the environment is not ANSI conformant. */
567 fclose
PARAMS ((FILE *stream
)); /* 4.9.5.1 */
570 atof
PARAMS ((const char *nptr
)); /* 4.10.1.1 */
572 #ifndef MALLOC_INCOMPATIBLE
574 malloc
PARAMS ((size_t size
)); /* 4.10.3.3 */
577 realloc
PARAMS ((void *ptr
, size_t size
)); /* 4.10.3.4 */
580 free
PARAMS ((void *)); /* 4.10.3.2 */
584 qsort
PARAMS ((void *base
, size_t nmemb
, /* 4.10.5.2 */
586 int (*comp
)(const void *, const void *)));
589 strchr
PARAMS ((const char *, int)); /* 4.11.5.2 */
592 strrchr
PARAMS ((const char *, int)); /* 4.11.5.5 */
595 strtok
PARAMS ((char *, const char *)); /* 4.11.5.8 */
598 strerror
PARAMS ((int)); /* 4.11.6.2 */
600 /* Various possibilities for alloca. */
603 # define alloca __builtin_alloca
608 extern char *alloca ();
612 /* TARGET_BYTE_ORDER and HOST_BYTE_ORDER should be defined to one of these. */
614 #if !defined (BIG_ENDIAN)
615 #define BIG_ENDIAN 4321
618 #if !defined (LITTLE_ENDIAN)
619 #define LITTLE_ENDIAN 1234
622 /* Target-system-dependent parameters for GDB.
624 The standard thing is to include defs.h. However, files that are
625 specific to a particular target can define TM_FILE_OVERRIDE before
626 including defs.h, then can include any particular tm-file they desire. */
628 /* Target machine definition. This will be a symlink to one of the
629 tm-*.h files, built by the `configure' script. */
631 #ifndef TM_FILE_OVERRIDE
635 /* The bit byte-order has to do just with numbering of bits in
636 debugging symbols and such. Conceptually, it's quite separate
637 from byte/word byte order. */
639 #if !defined (BITS_BIG_ENDIAN)
640 #if TARGET_BYTE_ORDER == BIG_ENDIAN
641 #define BITS_BIG_ENDIAN 1
642 #endif /* Big endian. */
644 #if TARGET_BYTE_ORDER == LITTLE_ENDIAN
645 #define BITS_BIG_ENDIAN 0
646 #endif /* Little endian. */
647 #endif /* BITS_BIG_ENDIAN not defined. */
649 /* Swap LEN bytes at BUFFER between target and host byte-order. */
650 #if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
651 #define SWAP_TARGET_AND_HOST(buffer,len)
652 #else /* Target and host byte order differ. */
653 #define SWAP_TARGET_AND_HOST(buffer,len) \
656 char *p = (char *)(buffer); \
657 char *q = ((char *)(buffer)) + len - 1; \
658 for (; p < q; p++, q--) \
665 #endif /* Target and host byte order differ. */
667 /* On some machines there are bits in addresses which are not really
668 part of the address, but are used by the kernel, the hardware, etc.
669 for special purposes. ADDR_BITS_REMOVE takes out any such bits
670 so we get a "real" address such as one would find in a symbol
671 table. ADDR_BITS_SET sets those bits the way the system wants
673 #if !defined (ADDR_BITS_REMOVE)
674 #define ADDR_BITS_REMOVE(addr) (addr)
675 #define ADDR_BITS_SET(addr) (addr)
676 #endif /* No ADDR_BITS_REMOVE. */
678 #if !defined (SYS_SIGLIST_MISSING)
679 #define SYS_SIGLIST_MISSING defined (USG)
680 #endif /* No SYS_SIGLIST_MISSING */
685 push_bytes
PARAMS ((CORE_ADDR
, char *, int));
687 /* In some modules, we don't have a definition of REGISTER_TYPE yet, so we
688 must avoid prototyping this function for now. FIXME. Should be:
690 push_word PARAMS ((CORE_ADDR, REGISTER_TYPE));
695 #endif /* !defined (DEFS_H) */