1 /* Basic, host-specific, and target-specific definitions for GDB.
2 Copyright (C) 1986, 89, 91, 92, 93, 94, 95, 96, 1998
3 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
24 #include "config.h" /* Generated by configure */
26 #include <errno.h> /* System call error return status */
31 # include <sys/types.h> /* for size_t */
34 /* Just in case they're not defined in stdio.h. */
43 /* First include ansidecl.h so we can use the various macro definitions
44 here and in all subsequent file inclusions. */
48 #ifdef ANSI_PROTOTYPES
54 #include "libiberty.h"
56 /* libiberty.h can't declare this one, but evidently we can. */
57 extern char *strsignal
PARAMS ((int));
65 /* For BFD64 and bfd_vma. */
68 /* An address in the program being debugged. Host byte order. Rather
69 than duplicate all the logic in BFD which figures out what type
70 this is (long, long long, etc.) and whether it needs to be 64
71 bits (the host/target interactions are subtle), we just use
74 typedef bfd_vma CORE_ADDR
;
77 #define min(a, b) ((a) < (b) ? (a) : (b))
80 #define max(a, b) ((a) > (b) ? (a) : (b))
83 /* Gdb does *lots* of string compares. Use macros to speed them up by
84 avoiding function calls if the first characters are not the same. */
86 #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b))
87 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
88 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
90 /* The character GNU C++ uses to build identifiers that must be unique from
91 the program's identifiers (such as $this and $$vptr). */
92 #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
94 /* Check if a character is one of the commonly used C++ marker characters. */
95 extern int is_cplus_marker
PARAMS ((int));
97 /* enable xdb commands if set */
98 extern int xdb_commands
;
100 /* enable dbx commands if set */
101 extern int dbx_commands
;
103 extern int quit_flag
;
104 extern int immediate_quit
;
105 extern int sevenbit_strings
;
107 extern void quit
PARAMS ((void));
110 /* do twice to force compiler warning */
111 #define QUIT_FIXME "FIXME"
112 #define QUIT_FIXME "ignoring redefinition of QUIT"
115 if (quit_flag) quit (); \
116 if (interactive_hook) interactive_hook (); \
121 /* Command classes are top-level categories into which commands are broken
122 down for "help" purposes.
123 Notes on classes: class_alias is for alias commands which are not
124 abbreviations of the original command. class-pseudo is for commands
125 which are not really commands nor help topics ("stop"). */
129 /* Special args to help_list */
130 all_classes
= -2, all_commands
= -1,
131 /* Classes of commands */
132 no_class
= -1, class_run
= 0, class_vars
, class_stack
,
133 class_files
, class_support
, class_info
, class_breakpoint
, class_trace
,
134 class_alias
, class_obscure
, class_user
, class_maintenance
,
135 class_pseudo
, class_tui
, class_xdb
138 /* Languages represented in the symbol table and elsewhere.
139 This should probably be in language.h, but since enum's can't
140 be forward declared to satisfy opaque references before their
141 actual definition, needs to be here. */
145 language_unknown
, /* Language not known */
146 language_auto
, /* Placeholder for automatic setting */
148 language_cplus
, /* C++ */
149 /* start-sanitize-java */
150 language_java
, /* Java */
151 /* end-sanitize-java */
152 language_chill
, /* Chill */
153 language_fortran
, /* Fortran */
154 language_m2
, /* Modula-2 */
155 language_asm
, /* Assembly language */
156 language_scm
/* Scheme / Guile */
159 /* the cleanup list records things that have to be undone
160 if an error happens (descriptors to be closed, memory to be freed, etc.)
161 Each link in the chain records a function to call and an
164 Use make_cleanup to add an element to the cleanup chain.
165 Use do_cleanups to do all cleanup actions back to a given
166 point in the chain. Use discard_cleanups to remove cleanups
167 from the chain back to a given point, not doing them. */
171 struct cleanup
*next
;
172 void (*function
) PARAMS ((PTR
));
177 /* The ability to declare that a function never returns is useful, but
178 not really required to compile GDB successfully, so the NORETURN and
179 ATTR_NORETURN macros normally expand into nothing. */
181 /* If compiling with older versions of GCC, a function may be declared
182 "volatile" to indicate that it does not return. */
185 # if defined(__GNUC__) \
186 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
187 # define NORETURN volatile
189 # define NORETURN /* nothing */
193 /* GCC 2.5 and later versions define a function attribute "noreturn",
194 which is the preferred way to declare that a function never returns.
195 However GCC 2.7 appears to be the first version in which this fully
196 works everywhere we use it. */
198 #ifndef ATTR_NORETURN
199 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 7
200 # define ATTR_NORETURN __attribute__ ((noreturn))
202 # define ATTR_NORETURN /* nothing */
207 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 4 && defined (__ANSI_PROTOTYPES)
208 # define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
210 # define ATTR_FORMAT(type, x, y) /* nothing */
214 /* Needed for various prototypes */
221 /* From blockframe.c */
223 extern int inside_entry_func
PARAMS ((CORE_ADDR
));
225 extern int inside_entry_file
PARAMS ((CORE_ADDR addr
));
227 extern int inside_main_func
PARAMS ((CORE_ADDR pc
));
229 /* From ch-lang.c, for the moment. (FIXME) */
231 extern char *chill_demangle
PARAMS ((const char *));
235 extern void notice_quit
PARAMS ((void));
237 extern int strcmp_iw
PARAMS ((const char *, const char *));
239 extern char *safe_strerror
PARAMS ((int));
241 extern char *safe_strsignal
PARAMS ((int));
243 extern void init_malloc
PARAMS ((void *));
245 extern void request_quit
PARAMS ((int));
247 extern void do_cleanups
PARAMS ((struct cleanup
*));
248 extern void do_final_cleanups
PARAMS ((struct cleanup
*));
249 extern void do_my_cleanups
PARAMS ((struct cleanup
**, struct cleanup
*));
250 extern void do_run_cleanups
PARAMS ((struct cleanup
*));
252 extern void discard_cleanups
PARAMS ((struct cleanup
*));
253 extern void discard_final_cleanups
PARAMS ((struct cleanup
*));
254 extern void discard_my_cleanups
PARAMS ((struct cleanup
**, struct cleanup
*));
256 typedef void (*make_cleanup_func
) PARAMS ((void *));
258 extern struct cleanup
*make_cleanup
PARAMS ((make_cleanup_func
, void *));
260 extern struct cleanup
*make_final_cleanup
PARAMS ((make_cleanup_func
, void *));
262 extern struct cleanup
*make_my_cleanup
PARAMS ((struct cleanup
**,
263 make_cleanup_func
, void *));
265 extern struct cleanup
*make_run_cleanup
PARAMS ((make_cleanup_func
, void *));
267 extern struct cleanup
*save_cleanups
PARAMS ((void));
268 extern struct cleanup
*save_final_cleanups
PARAMS ((void));
269 extern struct cleanup
*save_my_cleanups
PARAMS ((struct cleanup
**));
271 extern void restore_cleanups
PARAMS ((struct cleanup
*));
272 extern void restore_final_cleanups
PARAMS ((struct cleanup
*));
273 extern void restore_my_cleanups
PARAMS ((struct cleanup
**, struct cleanup
*));
275 extern void free_current_contents
PARAMS ((char **));
277 extern void null_cleanup
PARAMS ((PTR
));
279 extern int myread
PARAMS ((int, char *, int));
281 extern int query
PARAMS((char *, ...))
282 ATTR_FORMAT(printf
, 1, 2);
284 #if !defined (USE_MMALLOC)
285 extern PTR mmalloc
PARAMS ((PTR
, size_t));
286 extern PTR mrealloc
PARAMS ((PTR
, PTR
, size_t));
287 extern void mfree
PARAMS ((PTR
, PTR
));
290 /* From demangle.c */
292 extern void set_demangling_style
PARAMS ((char *));
297 typedef int (use_struct_convention_fn
) PARAMS ((int gcc_p
, struct type
*value_type
));
298 extern use_struct_convention_fn generic_use_struct_convention
;
300 typedef unsigned char *(breakpoint_from_pc_fn
) PARAMS ((CORE_ADDR
*pcptr
, int *lenptr
));
304 /* Annotation stuff. */
306 extern int annotation_level
; /* in stack.c */
308 extern void begin_line
PARAMS ((void));
310 extern void wrap_here
PARAMS ((char *));
312 extern void reinitialize_more_filter
PARAMS ((void));
314 typedef FILE GDB_FILE
;
315 #define gdb_stdout stdout
316 #define gdb_stderr stderr
318 extern void gdb_flush
PARAMS ((GDB_FILE
*));
320 extern GDB_FILE
*gdb_fopen
PARAMS ((char * name
, char * mode
));
322 extern void fputs_filtered
PARAMS ((const char *, GDB_FILE
*));
324 extern void fputs_unfiltered
PARAMS ((const char *, GDB_FILE
*));
326 extern int fputc_filtered
PARAMS ((int c
, GDB_FILE
*));
328 extern int fputc_unfiltered
PARAMS ((int c
, GDB_FILE
*));
330 extern int putchar_unfiltered
PARAMS ((int c
));
332 extern void puts_filtered
PARAMS ((const char *));
334 extern void puts_unfiltered
PARAMS ((const char *));
336 extern void puts_debug
PARAMS ((char *prefix
, char *string
, char *suffix
));
338 extern void vprintf_filtered
PARAMS ((const char *, va_list))
339 ATTR_FORMAT(printf
, 1, 0);
341 extern void vfprintf_filtered
PARAMS ((FILE *, const char *, va_list))
342 ATTR_FORMAT(printf
, 2, 0);
344 extern void fprintf_filtered
PARAMS ((FILE *, const char *, ...))
345 ATTR_FORMAT(printf
, 2, 3);
347 extern void fprintfi_filtered
PARAMS ((int, FILE *, const char *, ...))
348 ATTR_FORMAT(printf
, 3, 4);
350 extern void printf_filtered
PARAMS ((const char *, ...))
351 ATTR_FORMAT(printf
, 1, 2);
353 extern void printfi_filtered
PARAMS ((int, const char *, ...))
354 ATTR_FORMAT(printf
, 2, 3);
356 extern void vprintf_unfiltered
PARAMS ((const char *, va_list))
357 ATTR_FORMAT(printf
, 1, 0);
359 extern void vfprintf_unfiltered
PARAMS ((FILE *, const char *, va_list))
360 ATTR_FORMAT(printf
, 2, 0);
362 extern void fprintf_unfiltered
PARAMS ((FILE *, const char *, ...))
363 ATTR_FORMAT(printf
, 2, 3);
365 extern void printf_unfiltered
PARAMS ((const char *, ...))
366 ATTR_FORMAT(printf
, 1, 2);
368 extern void print_spaces
PARAMS ((int, GDB_FILE
*));
370 extern void print_spaces_filtered
PARAMS ((int, GDB_FILE
*));
372 extern char *n_spaces
PARAMS ((int));
374 extern void gdb_printchar
PARAMS ((int, GDB_FILE
*, int));
376 extern void gdb_print_address
PARAMS ((void *, GDB_FILE
*));
378 typedef bfd_vma t_addr
;
379 typedef bfd_vma t_reg
;
380 extern char* paddr
PARAMS ((t_addr addr
));
382 extern char* preg
PARAMS ((t_reg reg
));
384 extern char* paddr_nz
PARAMS ((t_addr addr
));
386 extern char* preg_nz
PARAMS ((t_reg reg
));
388 extern void fprintf_symbol_filtered
PARAMS ((GDB_FILE
*, char *,
389 enum language
, int));
391 extern NORETURN
void perror_with_name
PARAMS ((char *)) ATTR_NORETURN
;
393 extern void print_sys_errmsg
PARAMS ((char *, int));
395 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
396 "const char *" in unistd.h, so we can't declare the argument
399 extern char *re_comp
PARAMS ((const char *));
403 extern void symbol_file_command
PARAMS ((char *, int));
407 extern char *skip_quoted
PARAMS ((char *));
409 extern char *gdb_readline
PARAMS ((char *));
411 extern char *command_line_input
PARAMS ((char *, int, char *));
413 extern void print_prompt
PARAMS ((void));
415 extern int input_from_terminal_p
PARAMS ((void));
417 extern int info_verbose
;
419 /* From printcmd.c */
421 extern void set_next_address
PARAMS ((CORE_ADDR
));
423 extern void print_address_symbolic
PARAMS ((CORE_ADDR
, GDB_FILE
*, int,
426 extern void print_address_numeric
PARAMS ((CORE_ADDR
, int, GDB_FILE
*));
428 extern void print_address
PARAMS ((CORE_ADDR
, GDB_FILE
*));
432 extern int openp
PARAMS ((char *, int, char *, int, int, char **));
434 extern void mod_path
PARAMS ((char *, char **));
436 extern void directory_command
PARAMS ((char *, int));
438 extern void init_source_path
PARAMS ((void));
440 extern char *symtab_to_filename
PARAMS ((struct symtab
*));
444 extern int read_relative_register_raw_bytes
PARAMS ((int, char *));
446 /* From readline (but not in any readline .h files). */
448 extern char *tilde_expand
PARAMS ((char *));
450 /* Control types for commands */
452 enum misc_command_type
460 enum command_control_type
470 /* Structure for saved commands lines
471 (for breakpoints, defined commands, etc). */
475 struct command_line
*next
;
477 enum command_control_type control_type
;
479 struct command_line
**body_list
;
482 extern struct command_line
*read_command_lines
PARAMS ((char *, int));
484 extern void free_command_lines
PARAMS ((struct command_line
**));
486 /* String containing the current directory (what getwd would return). */
488 extern char *current_directory
;
490 /* Default radixes for input and output. Only some values supported. */
491 extern unsigned input_radix
;
492 extern unsigned output_radix
;
494 /* Possibilities for prettyprint parameters to routines which print
495 things. Like enum language, this should be in value.h, but needs
496 to be here for the same reason. FIXME: If we can eliminate this
497 as an arg to LA_VAL_PRINT, then we can probably move it back to
502 Val_no_prettyprint
= 0,
504 /* Use the default setting which the user has specified. */
509 /* Host machine definition. This will be a symlink to one of the
510 xm-*.h files, built by the `configure' script. */
514 /* Native machine support. This will be a symlink to one of the
515 nm-*.h files, built by the `configure' script. */
519 /* Target machine definition. This will be a symlink to one of the
520 tm-*.h files, built by the `configure' script. */
524 /* If the xm.h file did not define the mode string used to open the
525 files, assume that binary files are opened the same way as text
528 #include "fopen-same.h"
531 /* Microsoft C can't deal with const pointers */
536 #define CONST_PTR const
540 * Allow things in gdb to be declared "volatile". If compiling ANSI, it
541 * just works. If compiling with gcc but non-ansi, redefine to __volatile__.
542 * If non-ansi, non-gcc, then eliminate "volatile" entirely, making those
543 * objects be read-write rather than read-only.
549 # define volatile __volatile__
551 # define volatile /*nothing*/
554 #endif /* volatile */
556 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
557 FIXME: Assumes 2's complement arithmetic */
559 #if !defined (UINT_MAX)
560 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
563 #if !defined (INT_MAX)
564 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
567 #if !defined (INT_MIN)
568 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
571 #if !defined (ULONG_MAX)
572 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
575 #if !defined (LONG_MAX)
576 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
583 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
585 #define LONGEST BFD_HOST_64_BIT
586 #define ULONGEST BFD_HOST_U_64_BIT
590 # ifdef CC_HAS_LONG_LONG
591 # define LONGEST long long
592 # define ULONGEST unsigned long long
594 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
595 (e.g. i386-windows) so try it. */
596 # ifdef BFD_HOST_64_BIT
597 # define LONGEST BFD_HOST_64_BIT
598 # define ULONGEST BFD_HOST_U_64_BIT
600 # define LONGEST long
601 # define ULONGEST unsigned long
605 #endif /* No BFD64 */
607 #endif /* ! LONGEST */
609 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
610 arguments to a function, number in a value history, register number, etc.)
611 where the value must not be larger than can fit in an int. */
613 extern int longest_to_int
PARAMS ((LONGEST
));
615 /* Assorted functions we can declare, now that const and volatile are
618 extern char *savestring
PARAMS ((const char *, int));
620 extern char *msavestring
PARAMS ((void *, const char *, int));
622 extern char *strsave
PARAMS ((const char *));
624 extern char *mstrsave
PARAMS ((void *, const char *));
626 #ifdef _MSC_VER /* FIXME; was long, but this causes compile errors in msvc if already defined */
627 extern PTR xmmalloc
PARAMS ((PTR
, size_t));
629 extern PTR xmrealloc
PARAMS ((PTR
, PTR
, size_t));
631 extern PTR xmmalloc
PARAMS ((PTR
, long));
633 extern PTR xmrealloc
PARAMS ((PTR
, PTR
, long));
636 extern int parse_escape
PARAMS ((char **));
638 /* compat - handle old targets that just define REGISTER_NAMES */
639 #ifndef REGISTER_NAME
640 extern char *gdb_register_names
[];
641 #define REGISTER_NAME(i) gdb_register_names[i]
644 /* Message to be printed before the error message, when an error occurs. */
646 extern char *error_pre_print
;
648 /* Message to be printed before the error message, when an error occurs. */
650 extern char *quit_pre_print
;
652 /* Message to be printed before the warning message, when a warning occurs. */
654 extern char *warning_pre_print
;
656 extern NORETURN
void error
PARAMS((const char *, ...)) ATTR_NORETURN
;
658 extern void error_begin
PARAMS ((void));
660 extern NORETURN
void fatal
PARAMS((char *, ...)) ATTR_NORETURN
;
662 extern NORETURN
void nomem
PARAMS ((long)) ATTR_NORETURN
;
664 /* Reasons for calling return_to_top_level. */
666 /* User interrupt. */
669 /* Any other error. */
673 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
674 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
675 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
676 typedef int return_mask
;
679 return_to_top_level
PARAMS ((enum return_reason
)) ATTR_NORETURN
;
682 catch_errors
PARAMS ((int (*) (char *), void *, char *, return_mask
));
684 extern void warning_begin
PARAMS ((void));
686 extern void warning
PARAMS ((const char *, ...))
687 ATTR_FORMAT(printf
, 1, 2);
689 /* Global functions from other, non-gdb GNU thingies.
690 Libiberty thingies are no longer declared here. We include libiberty.h
693 #ifndef GETENV_PROVIDED
694 extern char *getenv
PARAMS ((const char *));
697 /* From other system libraries */
704 #if defined(_MSC_VER) && !defined(__cplusplus)
705 /* msvc defines these in stdlib.h for c code */
712 #define min(a, b) ((a) < (b) ? (a) : (b))
715 #define max(a, b) ((a) > (b) ? (a) : (b))
719 /* We take the address of fclose later, but some stdio's forget
720 to declare this. We can't always declare it since there's
721 no way to declare the parameters without upsetting some compiler
724 #ifndef FCLOSE_PROVIDED
725 extern int fclose
PARAMS ((FILE *));
729 extern double atof
PARAMS ((const char *)); /* X3.159-1989 4.10.1.1 */
732 #ifndef MALLOC_INCOMPATIBLE
734 #ifdef NEED_DECLARATION_MALLOC
735 extern PTR
malloc ();
738 #ifdef NEED_DECLARATION_REALLOC
739 extern PTR
realloc ();
742 #ifdef NEED_DECLARATION_FREE
746 #endif /* MALLOC_INCOMPATIBLE */
748 /* Various possibilities for alloca. */
751 # define alloca __builtin_alloca
752 # else /* Not GNU C */
753 # ifdef HAVE_ALLOCA_H
760 /* We need to be careful not to declare this in a way which conflicts with
761 bison. Bison never declares it as char *, but under various circumstances
762 (like __hpux) we need to use void *. */
763 # if defined (__STDC__) || defined (__hpux)
764 extern void *alloca ();
765 # else /* Don't use void *. */
766 extern char *alloca ();
767 # endif /* Don't use void *. */
768 # endif /* Not _AIX */
769 # endif /* Not HAVE_ALLOCA_H */
770 # endif /* Not GNU C */
771 #endif /* alloca not defined */
773 /* HOST_BYTE_ORDER must be defined to one of these. */
779 #if !defined (BIG_ENDIAN)
780 #define BIG_ENDIAN 4321
783 #if !defined (LITTLE_ENDIAN)
784 #define LITTLE_ENDIAN 1234
787 /* Dynamic target-system-dependent parameters for GDB. */
791 /* Static target-system-dependent parameters for GDB. */
793 /* Number of bits in a char or unsigned char for the target machine.
794 Just like CHAR_BIT in <limits.h> but describes the target machine. */
795 #if !defined (TARGET_CHAR_BIT)
796 #define TARGET_CHAR_BIT 8
799 /* Number of bits in a short or unsigned short for the target machine. */
800 #if !defined (TARGET_SHORT_BIT)
801 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
804 /* Number of bits in an int or unsigned int for the target machine. */
805 #if !defined (TARGET_INT_BIT)
806 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
809 /* Number of bits in a long or unsigned long for the target machine. */
810 #if !defined (TARGET_LONG_BIT)
811 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
814 /* Number of bits in a long long or unsigned long long for the target machine. */
815 #if !defined (TARGET_LONG_LONG_BIT)
816 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
819 /* Number of bits in a float for the target machine. */
820 #if !defined (TARGET_FLOAT_BIT)
821 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
824 /* Number of bits in a double for the target machine. */
825 #if !defined (TARGET_DOUBLE_BIT)
826 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
829 /* Number of bits in a long double for the target machine. */
830 #if !defined (TARGET_LONG_DOUBLE_BIT)
831 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
834 /* Number of bits in a pointer for the target machine */
835 #if !defined (TARGET_PTR_BIT)
836 #define TARGET_PTR_BIT TARGET_INT_BIT
839 /* If we picked up a copy of CHAR_BIT from a configuration file
840 (which may get it by including <limits.h>) then use it to set
841 the number of bits in a host char. If not, use the same size
844 #if defined (CHAR_BIT)
845 #define HOST_CHAR_BIT CHAR_BIT
847 #define HOST_CHAR_BIT TARGET_CHAR_BIT
850 /* The bit byte-order has to do just with numbering of bits in
851 debugging symbols and such. Conceptually, it's quite separate
852 from byte/word byte order. */
854 #if !defined (BITS_BIG_ENDIAN)
855 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
860 extern LONGEST extract_signed_integer
PARAMS ((void *, int));
862 extern ULONGEST extract_unsigned_integer
PARAMS ((void *, int));
864 extern int extract_long_unsigned_integer
PARAMS ((void *, int, LONGEST
*));
866 extern CORE_ADDR extract_address
PARAMS ((void *, int));
868 extern void store_signed_integer
PARAMS ((void *, int, LONGEST
));
870 extern void store_unsigned_integer
PARAMS ((void *, int, ULONGEST
));
872 extern void store_address
PARAMS ((void *, int, CORE_ADDR
));
874 /* Setup definitions for host and target floating point formats. We need to
875 consider the format for `float', `double', and `long double' for both target
876 and host. We need to do this so that we know what kind of conversions need
877 to be done when converting target numbers to and from the hosts DOUBLEST
880 /* This is used to indicate that we don't know the format of the floating point
881 number. Typically, this is useful for native ports, where the actual format
882 is irrelevant, since no conversions will be taking place. */
884 extern const struct floatformat floatformat_unknown
;
886 #if HOST_BYTE_ORDER == BIG_ENDIAN
887 # ifndef HOST_FLOAT_FORMAT
888 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
890 # ifndef HOST_DOUBLE_FORMAT
891 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
893 #else /* LITTLE_ENDIAN */
894 # ifndef HOST_FLOAT_FORMAT
895 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
897 # ifndef HOST_DOUBLE_FORMAT
898 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
902 #ifndef HOST_LONG_DOUBLE_FORMAT
903 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
906 #ifndef TARGET_FLOAT_FORMAT
907 #define TARGET_FLOAT_FORMAT (TARGET_BYTE_ORDER == BIG_ENDIAN \
908 ? &floatformat_ieee_single_big \
909 : &floatformat_ieee_single_little)
911 #ifndef TARGET_DOUBLE_FORMAT
912 #define TARGET_DOUBLE_FORMAT (TARGET_BYTE_ORDER == BIG_ENDIAN \
913 ? &floatformat_ieee_double_big \
914 : &floatformat_ieee_double_little)
917 #ifndef TARGET_LONG_DOUBLE_FORMAT
918 # define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
921 /* Use `long double' if the host compiler supports it. (Note that this is not
922 necessarily any longer than `double'. On SunOS/gcc, it's the same as
923 double.) This is necessary because GDB internally converts all floating
924 point values to the widest type supported by the host.
926 There are problems however, when the target `long double' is longer than the
927 host's `long double'. In general, we'll probably reduce the precision of
928 any such values and print a warning. */
930 #ifdef HAVE_LONG_DOUBLE
931 typedef long double DOUBLEST
;
933 typedef double DOUBLEST
;
936 extern void floatformat_to_doublest
PARAMS ((const struct floatformat
*,
937 char *, DOUBLEST
*));
938 extern void floatformat_from_doublest
PARAMS ((const struct floatformat
*,
939 DOUBLEST
*, char *));
940 extern DOUBLEST extract_floating
PARAMS ((void *, int));
942 extern void store_floating
PARAMS ((void *, int, DOUBLEST
));
944 /* On some machines there are bits in addresses which are not really
945 part of the address, but are used by the kernel, the hardware, etc.
946 for special purposes. ADDR_BITS_REMOVE takes out any such bits
947 so we get a "real" address such as one would find in a symbol
948 table. This is used only for addresses of instructions, and even then
949 I'm not sure it's used in all contexts. It exists to deal with there
950 being a few stray bits in the PC which would mislead us, not as some sort
951 of generic thing to handle alignment or segmentation (it's possible it
952 should be in TARGET_READ_PC instead). */
953 #if !defined (ADDR_BITS_REMOVE)
954 #define ADDR_BITS_REMOVE(addr) (addr)
955 #endif /* No ADDR_BITS_REMOVE. */
959 extern CORE_ADDR push_bytes
PARAMS ((CORE_ADDR
, char *, int));
961 extern CORE_ADDR push_word
PARAMS ((CORE_ADDR
, ULONGEST
));
963 /* Some parts of gdb might be considered optional, in the sense that they
964 are not essential for being able to build a working, usable debugger
965 for a specific environment. For example, the maintenance commands
966 are there for the benefit of gdb maintainers. As another example,
967 some environments really don't need gdb's that are able to read N
968 different object file formats. In order to make it possible (but
969 not necessarily recommended) to build "stripped down" versions of
970 gdb, the following defines control selective compilation of those
971 parts of gdb which can be safely left out when necessary. Note that
972 the default is to include everything. */
974 #ifndef MAINTENANCE_CMDS
975 #define MAINTENANCE_CMDS 1
978 #ifdef MAINTENANCE_CMDS
982 /* Hooks for alternate command interfaces. */
985 struct target_waitstatus
;
986 struct cmd_list_element
;
989 extern void (*init_ui_hook
) PARAMS ((char *argv0
));
990 extern void (*command_loop_hook
) PARAMS ((void));
991 extern void (*fputs_unfiltered_hook
) PARAMS ((const char *linebuffer
,
993 extern void (*print_frame_info_listing_hook
) PARAMS ((struct symtab
*s
,
994 int line
, int stopline
,
996 extern int (*query_hook
) PARAMS ((const char *, va_list));
997 extern void (*warning_hook
) PARAMS ((const char *, va_list));
998 extern void (*flush_hook
) PARAMS ((FILE *stream
));
999 extern void (*create_breakpoint_hook
) PARAMS ((struct breakpoint
*b
));
1000 extern void (*delete_breakpoint_hook
) PARAMS ((struct breakpoint
*bpt
));
1001 extern void (*modify_breakpoint_hook
) PARAMS ((struct breakpoint
*bpt
));
1002 extern void (*target_output_hook
) PARAMS ((char *));
1003 extern void (*interactive_hook
) PARAMS ((void));
1004 extern void (*registers_changed_hook
) PARAMS ((void));
1005 extern void (*readline_begin_hook
) PARAMS ((char *, ...));
1006 extern char * (*readline_hook
) PARAMS ((char *));
1007 extern void (*readline_end_hook
) PARAMS ((void));
1008 extern void (*pc_changed_hook
) PARAMS ((void));
1009 extern void (*context_hook
) PARAMS ((int));
1010 extern int (*target_wait_hook
) PARAMS ((int pid
,
1011 struct target_waitstatus
*status
));
1013 extern void (*call_command_hook
) PARAMS ((struct cmd_list_element
*c
,
1014 char *cmd
, int from_tty
));
1016 extern NORETURN
void (*error_hook
) PARAMS ((void)) ATTR_NORETURN
;
1020 /* Inhibit window interface if non-zero. */
1022 extern int use_windows
;
1024 /* Symbolic definitions of filename-related things. */
1025 /* FIXME, this doesn't work very well if host and executable
1026 filesystems conventions are different. */
1028 #ifndef DIRNAME_SEPARATOR
1029 #define DIRNAME_SEPARATOR ':'
1033 #if defined(__GO32__)||defined(_WIN32)
1034 #define SLASH_P(X) ((X)=='\\')
1036 #define SLASH_P(X) ((X)=='/')
1041 #if defined(__GO32__)||defined(_WIN32)
1042 #define SLASH_CHAR '\\'
1044 #define SLASH_CHAR '/'
1048 #ifndef SLASH_STRING
1049 #if defined(__GO32__)||defined(_WIN32)
1050 #define SLASH_STRING "\\"
1052 #define SLASH_STRING "/"
1057 #define ROOTED_P(X) (SLASH_P((X)[0]))
1060 /* On some systems, PIDGET is defined to extract the inferior pid from
1061 an internal pid that has the thread id and pid in seperate bit
1062 fields. If not defined, then just use the entire internal pid as
1066 #define PIDGET(pid) (pid)
1069 /* If under Cygwin, provide backwards compatibility with older
1070 Cygwin compilers that don't define the current cpp define. */
1077 #endif /* #ifndef DEFS_H */