1 /* Basic, host-specific, and target-specific definitions for GDB.
2 Copyright (C) 1986, 1989, 1991, 1992, 1993, 1994, 1995, 1996
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 */
28 /* Just in case they're not defined in stdio.h. */
37 /* First include ansidecl.h so we can use the various macro definitions
38 here and in all subsequent file inclusions. */
42 #ifdef ANSI_PROTOTYPES
48 #include "libiberty.h"
50 /* libiberty.h can't declare this one, but evidently we can. */
51 extern char *strsignal
PARAMS ((int));
59 /* For BFD64 and bfd_vma. */
62 /* An address in the program being debugged. Host byte order. Rather
63 than duplicate all the logic in BFD which figures out what type
64 this is (long, long long, etc.) and whether it needs to be 64
65 bits (the host/target interactions are subtle), we just use
68 typedef bfd_vma CORE_ADDR
;
71 #define min(a, b) ((a) < (b) ? (a) : (b))
74 #define max(a, b) ((a) > (b) ? (a) : (b))
77 /* Gdb does *lots* of string compares. Use macros to speed them up by
78 avoiding function calls if the first characters are not the same. */
80 #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b))
81 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
82 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
84 /* The character GNU C++ uses to build identifiers that must be unique from
85 the program's identifiers (such as $this and $$vptr). */
86 #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
88 /* Check if a character is one of the commonly used C++ marker characters. */
89 extern int is_cplus_marker
PARAMS ((int));
92 extern int immediate_quit
;
93 extern int sevenbit_strings
;
95 extern void quit
PARAMS ((void));
98 /* do twice to force compiler warning */
99 #define QUIT_FIXME "FIXME"
100 #define QUIT_FIXME "ignoring redefinition of QUIT"
103 if (quit_flag) quit (); \
104 if (interactive_hook) interactive_hook (); \
109 /* Command classes are top-level categories into which commands are broken
110 down for "help" purposes.
111 Notes on classes: class_alias is for alias commands which are not
112 abbreviations of the original command. class-pseudo is for commands
113 which are not really commands nor help topics ("stop"). */
117 /* Special args to help_list */
118 all_classes
= -2, all_commands
= -1,
119 /* Classes of commands */
120 no_class
= -1, class_run
= 0, class_vars
, class_stack
,
121 class_files
, class_support
, class_info
, class_breakpoint
,
122 class_alias
, class_obscure
, class_user
, class_maintenance
,
126 /* Languages represented in the symbol table and elsewhere.
127 This should probably be in language.h, but since enum's can't
128 be forward declared to satisfy opaque references before their
129 actual definition, needs to be here. */
133 language_unknown
, /* Language not known */
134 language_auto
, /* Placeholder for automatic setting */
136 language_cplus
, /* C++ */
137 language_java
, /* Java */
138 language_chill
, /* Chill */
139 language_fortran
, /* Fortran */
140 language_m2
, /* Modula-2 */
141 language_asm
, /* Assembly language */
142 language_scm
/* Scheme / Guile */
145 /* the cleanup list records things that have to be undone
146 if an error happens (descriptors to be closed, memory to be freed, etc.)
147 Each link in the chain records a function to call and an
150 Use make_cleanup to add an element to the cleanup chain.
151 Use do_cleanups to do all cleanup actions back to a given
152 point in the chain. Use discard_cleanups to remove cleanups
153 from the chain back to a given point, not doing them. */
157 struct cleanup
*next
;
158 void (*function
) PARAMS ((PTR
));
163 /* The ability to declare that a function never returns is useful, but
164 not really required to compile GDB successfully, so the NORETURN and
165 ATTR_NORETURN macros normally expand into nothing. */
167 /* If compiling with older versions of GCC, a function may be declared
168 "volatile" to indicate that it does not return. */
171 # if defined(__GNUC__) \
172 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
173 # define NORETURN volatile
175 # define NORETURN /* nothing */
179 /* GCC 2.5 and later versions define a function attribute "noreturn",
180 which is the preferred way to declare that a function never returns.
181 However GCC 2.7 appears to be the first version in which this fully
182 works everywhere we use it. */
184 #ifndef ATTR_NORETURN
185 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 7
186 # define ATTR_NORETURN __attribute__ ((noreturn))
188 # define ATTR_NORETURN /* nothing */
193 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 4 && defined (__ANSI_PROTOTYPES)
194 # define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
196 # define ATTR_FORMAT(type, x, y) /* nothing */
200 /* Needed for various prototypes */
207 /* From blockframe.c */
209 extern int inside_entry_func
PARAMS ((CORE_ADDR
));
211 extern int inside_entry_file
PARAMS ((CORE_ADDR addr
));
213 extern int inside_main_func
PARAMS ((CORE_ADDR pc
));
215 /* From ch-lang.c, for the moment. (FIXME) */
217 extern char *chill_demangle
PARAMS ((const char *));
221 extern void notice_quit
PARAMS ((void));
223 extern int strcmp_iw
PARAMS ((const char *, const char *));
225 extern char *safe_strerror
PARAMS ((int));
227 extern char *safe_strsignal
PARAMS ((int));
229 extern void init_malloc
PARAMS ((void *));
231 extern void request_quit
PARAMS ((int));
233 extern void do_cleanups
PARAMS ((struct cleanup
*));
234 extern void do_final_cleanups
PARAMS ((struct cleanup
*));
235 extern void do_my_cleanups
PARAMS ((struct cleanup
**, struct cleanup
*));
237 extern void discard_cleanups
PARAMS ((struct cleanup
*));
238 extern void discard_final_cleanups
PARAMS ((struct cleanup
*));
239 extern void discard_my_cleanups
PARAMS ((struct cleanup
**, struct cleanup
*));
241 /* The bare make_cleanup function is one of those rare beasts that
242 takes almost any type of function as the first arg and anything that
243 will fit in a "void *" as the second arg.
245 Should be, once all calls and called-functions are cleaned up:
246 extern struct cleanup *
247 make_cleanup PARAMS ((void (*function) (void *), void *));
249 Until then, lint and/or various type-checking compiler options will
250 complain about make_cleanup calls. It'd be wrong to just cast things,
251 since the type actually passed when the function is called would be
254 extern struct cleanup
*make_cleanup ();
255 extern struct cleanup
*
256 make_final_cleanup
PARAMS ((void (*function
) (void *), void *));
257 extern struct cleanup
*
258 make_my_cleanup
PARAMS ((struct cleanup
**, void (*function
) (void *), void *));
260 extern struct cleanup
*save_cleanups
PARAMS ((void));
261 extern struct cleanup
*save_final_cleanups
PARAMS ((void));
262 extern struct cleanup
*save_my_cleanups
PARAMS ((struct cleanup
**));
264 extern void restore_cleanups
PARAMS ((struct cleanup
*));
265 extern void restore_final_cleanups
PARAMS ((struct cleanup
*));
266 extern void restore_my_cleanups
PARAMS ((struct cleanup
**, struct cleanup
*));
268 extern void free_current_contents
PARAMS ((char **));
270 extern void null_cleanup
PARAMS ((PTR
));
272 extern int myread
PARAMS ((int, char *, int));
274 extern int query
PARAMS((char *, ...))
275 ATTR_FORMAT(printf
, 1, 2);
277 /* From demangle.c */
279 extern void set_demangling_style
PARAMS ((char *));
282 /* Annotation stuff. */
284 extern int annotation_level
; /* in stack.c */
286 extern void begin_line
PARAMS ((void));
288 extern void wrap_here
PARAMS ((char *));
290 extern void reinitialize_more_filter
PARAMS ((void));
292 typedef FILE GDB_FILE
;
293 #define gdb_stdout stdout
294 #define gdb_stderr stderr
296 extern void gdb_flush
PARAMS ((GDB_FILE
*));
298 extern GDB_FILE
*gdb_fopen
PARAMS ((char * name
, char * mode
));
300 extern void fputs_filtered
PARAMS ((const char *, GDB_FILE
*));
302 extern void fputs_unfiltered
PARAMS ((const char *, GDB_FILE
*));
304 extern int fputc_unfiltered
PARAMS ((int c
, GDB_FILE
*));
306 extern int putchar_unfiltered
PARAMS ((int c
));
308 extern void puts_filtered
PARAMS ((const char *));
310 extern void puts_unfiltered
PARAMS ((const char *));
312 extern void vprintf_filtered
PARAMS ((const char *, va_list))
313 ATTR_FORMAT(printf
, 1, 0);
315 extern void vfprintf_filtered
PARAMS ((FILE *, const char *, va_list))
316 ATTR_FORMAT(printf
, 2, 0);
318 extern void fprintf_filtered
PARAMS ((FILE *, const char *, ...))
319 ATTR_FORMAT(printf
, 2, 3);
321 extern void fprintfi_filtered
PARAMS ((int, FILE *, const char *, ...))
322 ATTR_FORMAT(printf
, 3, 4);
324 extern void printf_filtered
PARAMS ((const char *, ...))
325 ATTR_FORMAT(printf
, 1, 2);
327 extern void printfi_filtered
PARAMS ((int, const char *, ...))
328 ATTR_FORMAT(printf
, 2, 3);
330 extern void vprintf_unfiltered
PARAMS ((const char *, va_list))
331 ATTR_FORMAT(printf
, 1, 0);
333 extern void vfprintf_unfiltered
PARAMS ((FILE *, const char *, va_list))
334 ATTR_FORMAT(printf
, 2, 0);
336 extern void fprintf_unfiltered
PARAMS ((FILE *, const char *, ...))
337 ATTR_FORMAT(printf
, 2, 3);
339 extern void printf_unfiltered
PARAMS ((const char *, ...))
340 ATTR_FORMAT(printf
, 1, 2);
342 extern void print_spaces
PARAMS ((int, GDB_FILE
*));
344 extern void print_spaces_filtered
PARAMS ((int, GDB_FILE
*));
346 extern char *n_spaces
PARAMS ((int));
348 extern void gdb_printchar
PARAMS ((int, GDB_FILE
*, int));
350 extern void gdb_print_address
PARAMS ((void *, GDB_FILE
*));
352 typedef bfd_vma t_addr
;
353 typedef bfd_vma t_reg
;
354 extern char* paddr
PARAMS ((t_addr addr
));
356 extern char* preg
PARAMS ((t_reg reg
));
358 extern char* paddr_nz
PARAMS ((t_addr addr
));
360 extern char* preg_nz
PARAMS ((t_reg reg
));
362 extern void fprintf_symbol_filtered
PARAMS ((GDB_FILE
*, char *,
363 enum language
, int));
365 extern NORETURN
void perror_with_name
PARAMS ((char *)) ATTR_NORETURN
;
367 extern void print_sys_errmsg
PARAMS ((char *, int));
369 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
370 "const char *" in unistd.h, so we can't declare the argument
373 extern char *re_comp
PARAMS ((const char *));
377 extern void symbol_file_command
PARAMS ((char *, int));
381 extern char *skip_quoted
PARAMS ((char *));
383 extern char *gdb_readline
PARAMS ((char *));
385 extern char *command_line_input
PARAMS ((char *, int, char *));
387 extern void print_prompt
PARAMS ((void));
389 extern int input_from_terminal_p
PARAMS ((void));
391 extern int info_verbose
;
393 /* From printcmd.c */
395 extern void set_next_address
PARAMS ((CORE_ADDR
));
397 extern void print_address_symbolic
PARAMS ((CORE_ADDR
, GDB_FILE
*, int,
400 extern void print_address_numeric
PARAMS ((CORE_ADDR
, int, GDB_FILE
*));
402 extern void print_address
PARAMS ((CORE_ADDR
, GDB_FILE
*));
406 extern int openp
PARAMS ((char *, int, char *, int, int, char **));
408 extern void mod_path
PARAMS ((char *, char **));
410 extern void directory_command
PARAMS ((char *, int));
412 extern void init_source_path
PARAMS ((void));
414 extern char *symtab_to_filename
PARAMS ((struct symtab
*));
418 extern int read_relative_register_raw_bytes
PARAMS ((int, char *));
420 /* From readline (but not in any readline .h files). */
422 extern char *tilde_expand
PARAMS ((char *));
424 /* Control types for commands */
426 enum misc_command_type
434 enum command_control_type
444 /* Structure for saved commands lines
445 (for breakpoints, defined commands, etc). */
449 struct command_line
*next
;
451 enum command_control_type control_type
;
453 struct command_line
**body_list
;
456 extern struct command_line
*read_command_lines
PARAMS ((char *, int));
458 extern void free_command_lines
PARAMS ((struct command_line
**));
460 /* String containing the current directory (what getwd would return). */
462 extern char *current_directory
;
464 /* Default radixes for input and output. Only some values supported. */
465 extern unsigned input_radix
;
466 extern unsigned output_radix
;
468 /* Possibilities for prettyprint parameters to routines which print
469 things. Like enum language, this should be in value.h, but needs
470 to be here for the same reason. FIXME: If we can eliminate this
471 as an arg to LA_VAL_PRINT, then we can probably move it back to
476 Val_no_prettyprint
= 0,
478 /* Use the default setting which the user has specified. */
483 /* Host machine definition. This will be a symlink to one of the
484 xm-*.h files, built by the `configure' script. */
488 /* Native machine support. This will be a symlink to one of the
489 nm-*.h files, built by the `configure' script. */
493 /* Target machine definition. This will be a symlink to one of the
494 tm-*.h files, built by the `configure' script. */
498 /* If the xm.h file did not define the mode string used to open the
499 files, assume that binary files are opened the same way as text
502 #include "fopen-same.h"
505 /* Microsoft C can't deal with const pointers */
510 #define CONST_PTR const
514 * Allow things in gdb to be declared "volatile". If compiling ANSI, it
515 * just works. If compiling with gcc but non-ansi, redefine to __volatile__.
516 * If non-ansi, non-gcc, then eliminate "volatile" entirely, making those
517 * objects be read-write rather than read-only.
523 # define volatile __volatile__
525 # define volatile /*nothing*/
528 #endif /* volatile */
530 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
531 FIXME: Assumes 2's complement arithmetic */
533 #if !defined (UINT_MAX)
534 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
537 #if !defined (INT_MAX)
538 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
541 #if !defined (INT_MIN)
542 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
545 #if !defined (ULONG_MAX)
546 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
549 #if !defined (LONG_MAX)
550 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
557 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
559 #define LONGEST BFD_HOST_64_BIT
560 #define ULONGEST BFD_HOST_U_64_BIT
564 # ifdef CC_HAS_LONG_LONG
565 # define LONGEST long long
566 # define ULONGEST unsigned long long
568 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
569 (e.g. i386-windows) so try it. */
570 # ifdef BFD_HOST_64_BIT
571 # define LONGEST BFD_HOST_64_BIT
572 # define ULONGEST BFD_HOST_U_64_BIT
574 # define LONGEST long
575 # define ULONGEST unsigned long
579 #endif /* No BFD64 */
581 #endif /* ! LONGEST */
583 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
584 arguments to a function, number in a value history, register number, etc.)
585 where the value must not be larger than can fit in an int. */
587 extern int longest_to_int
PARAMS ((LONGEST
));
589 /* Assorted functions we can declare, now that const and volatile are
592 extern char *savestring
PARAMS ((const char *, int));
594 extern char *msavestring
PARAMS ((void *, const char *, int));
596 extern char *strsave
PARAMS ((const char *));
598 extern char *mstrsave
PARAMS ((void *, const char *));
600 #ifdef _MSC_VER /* FIXME; was long, but this causes compile errors in msvc if already defined */
601 extern PTR xmmalloc
PARAMS ((PTR
, size_t));
603 extern PTR xmrealloc
PARAMS ((PTR
, PTR
, size_t));
605 extern PTR xmmalloc
PARAMS ((PTR
, long));
607 extern PTR xmrealloc
PARAMS ((PTR
, PTR
, long));
610 extern int parse_escape
PARAMS ((char **));
612 extern char *reg_names
[];
614 /* Message to be printed before the error message, when an error occurs. */
616 extern char *error_pre_print
;
618 /* Message to be printed before the error message, when an error occurs. */
620 extern char *quit_pre_print
;
622 /* Message to be printed before the warning message, when a warning occurs. */
624 extern char *warning_pre_print
;
626 extern NORETURN
void error
PARAMS((const char *, ...)) ATTR_NORETURN
;
628 extern void error_begin
PARAMS ((void));
630 extern NORETURN
void fatal
PARAMS((char *, ...)) ATTR_NORETURN
;
632 extern NORETURN
void nomem
PARAMS ((long)) ATTR_NORETURN
;
634 /* Reasons for calling return_to_top_level. */
636 /* User interrupt. */
639 /* Any other error. */
643 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
644 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
645 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
646 typedef int return_mask
;
649 return_to_top_level
PARAMS ((enum return_reason
)) ATTR_NORETURN
;
652 catch_errors
PARAMS ((int (*) (char *), void *, char *, return_mask
));
654 extern void warning_begin
PARAMS ((void));
656 extern void warning
PARAMS ((const char *, ...))
657 ATTR_FORMAT(printf
, 1, 2);
659 /* Global functions from other, non-gdb GNU thingies.
660 Libiberty thingies are no longer declared here. We include libiberty.h
663 #ifndef GETENV_PROVIDED
664 extern char *getenv
PARAMS ((const char *));
667 /* From other system libraries */
674 #if defined(_MSC_VER) && !defined(__cplusplus)
675 /* msvc defines these in stdlib.h for c code */
682 #define min(a, b) ((a) < (b) ? (a) : (b))
685 #define max(a, b) ((a) > (b) ? (a) : (b))
689 /* We take the address of fclose later, but some stdio's forget
690 to declare this. We can't always declare it since there's
691 no way to declare the parameters without upsetting some compiler
694 #ifndef FCLOSE_PROVIDED
695 extern int fclose
PARAMS ((FILE *));
699 extern double atof
PARAMS ((const char *)); /* X3.159-1989 4.10.1.1 */
702 #ifndef MALLOC_INCOMPATIBLE
704 #ifdef NEED_DECLARATION_MALLOC
705 extern PTR
malloc ();
708 #ifdef NEED_DECLARATION_REALLOC
709 extern PTR
realloc ();
712 #ifdef NEED_DECLARATION_FREE
716 #endif /* MALLOC_INCOMPATIBLE */
718 /* Various possibilities for alloca. */
721 # define alloca __builtin_alloca
722 # else /* Not GNU C */
724 # include <alloca.h> /* NOTE: Doesn't declare alloca() */
727 /* We need to be careful not to declare this in a way which conflicts with
728 bison. Bison never declares it as char *, but under various circumstances
729 (like __hpux) we need to use void *. */
730 # if defined (__STDC__) || defined (__hpux)
731 extern void *alloca ();
732 # else /* Don't use void *. */
733 extern char *alloca ();
734 # endif /* Don't use void *. */
735 # endif /* Not GNU C */
736 #endif /* alloca not defined */
738 /* HOST_BYTE_ORDER must be defined to one of these. */
744 #if !defined (BIG_ENDIAN)
745 #define BIG_ENDIAN 4321
748 #if !defined (LITTLE_ENDIAN)
749 #define LITTLE_ENDIAN 1234
752 /* Target-system-dependent parameters for GDB. */
754 #ifdef TARGET_BYTE_ORDER_SELECTABLE
755 /* The target endianness is selectable at runtime. Define
756 TARGET_BYTE_ORDER to be a variable. The user can use the `set
757 endian' command to change it. */
758 #undef TARGET_BYTE_ORDER
759 #define TARGET_BYTE_ORDER target_byte_order
760 extern int target_byte_order
;
763 extern void set_endian_from_file
PARAMS ((bfd
*));
765 /* Number of bits in a char or unsigned char for the target machine.
766 Just like CHAR_BIT in <limits.h> but describes the target machine. */
767 #if !defined (TARGET_CHAR_BIT)
768 #define TARGET_CHAR_BIT 8
771 /* Number of bits in a short or unsigned short for the target machine. */
772 #if !defined (TARGET_SHORT_BIT)
773 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
776 /* Number of bits in an int or unsigned int for the target machine. */
777 #if !defined (TARGET_INT_BIT)
778 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
781 /* Number of bits in a long or unsigned long for the target machine. */
782 #if !defined (TARGET_LONG_BIT)
783 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
786 /* Number of bits in a long long or unsigned long long for the target machine. */
787 #if !defined (TARGET_LONG_LONG_BIT)
788 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
791 /* Number of bits in a float for the target machine. */
792 #if !defined (TARGET_FLOAT_BIT)
793 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
796 /* Number of bits in a double for the target machine. */
797 #if !defined (TARGET_DOUBLE_BIT)
798 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
801 /* Number of bits in a long double for the target machine. */
802 #if !defined (TARGET_LONG_DOUBLE_BIT)
803 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
806 /* Number of bits in a pointer for the target machine */
807 #if !defined (TARGET_PTR_BIT)
808 #define TARGET_PTR_BIT TARGET_INT_BIT
811 /* If we picked up a copy of CHAR_BIT from a configuration file
812 (which may get it by including <limits.h>) then use it to set
813 the number of bits in a host char. If not, use the same size
816 #if defined (CHAR_BIT)
817 #define HOST_CHAR_BIT CHAR_BIT
819 #define HOST_CHAR_BIT TARGET_CHAR_BIT
822 /* The bit byte-order has to do just with numbering of bits in
823 debugging symbols and such. Conceptually, it's quite separate
824 from byte/word byte order. */
826 #if !defined (BITS_BIG_ENDIAN)
827 #ifndef TARGET_BYTE_ORDER_SELECTABLE
829 #if TARGET_BYTE_ORDER == BIG_ENDIAN
830 #define BITS_BIG_ENDIAN 1
831 #endif /* Big endian. */
833 #if TARGET_BYTE_ORDER == LITTLE_ENDIAN
834 #define BITS_BIG_ENDIAN 0
835 #endif /* Little endian. */
837 #else /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
839 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
841 #endif /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
842 #endif /* BITS_BIG_ENDIAN not defined. */
846 extern LONGEST extract_signed_integer
PARAMS ((void *, int));
848 extern ULONGEST extract_unsigned_integer
PARAMS ((void *, int));
850 extern int extract_long_unsigned_integer
PARAMS ((void *, int, LONGEST
*));
852 extern CORE_ADDR extract_address
PARAMS ((void *, int));
854 extern void store_signed_integer
PARAMS ((void *, int, LONGEST
));
856 extern void store_unsigned_integer
PARAMS ((void *, int, ULONGEST
));
858 extern void store_address
PARAMS ((void *, int, CORE_ADDR
));
860 /* Setup definitions for host and target floating point formats. We need to
861 consider the format for `float', `double', and `long double' for both target
862 and host. We need to do this so that we know what kind of conversions need
863 to be done when converting target numbers to and from the hosts DOUBLEST
866 /* This is used to indicate that we don't know the format of the floating point
867 number. Typically, this is useful for native ports, where the actual format
868 is irrelevant, since no conversions will be taking place. */
870 extern const struct floatformat floatformat_unknown
;
872 #if HOST_BYTE_ORDER == BIG_ENDIAN
873 # ifndef HOST_FLOAT_FORMAT
874 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
876 # ifndef HOST_DOUBLE_FORMAT
877 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
879 #else /* LITTLE_ENDIAN */
880 # ifndef HOST_FLOAT_FORMAT
881 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
883 # ifndef HOST_DOUBLE_FORMAT
884 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
888 #ifndef HOST_LONG_DOUBLE_FORMAT
889 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
892 #ifndef TARGET_BYTE_ORDER_SELECTABLE
893 # if TARGET_BYTE_ORDER == BIG_ENDIAN
894 # ifndef TARGET_FLOAT_FORMAT
895 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_big
897 # ifndef TARGET_DOUBLE_FORMAT
898 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_big
900 # else /* LITTLE_ENDIAN */
901 # ifndef TARGET_FLOAT_FORMAT
902 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_little
904 # ifndef TARGET_DOUBLE_FORMAT
905 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_little
908 #else /* TARGET_BYTE_ORDER_SELECTABLE */
909 # ifndef TARGET_FLOAT_FORMAT
910 # define TARGET_FLOAT_FORMAT (target_byte_order == BIG_ENDIAN \
911 ? &floatformat_ieee_single_big \
912 : &floatformat_ieee_single_little)
914 # ifndef TARGET_DOUBLE_FORMAT
915 # define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
916 ? &floatformat_ieee_double_big \
917 : &floatformat_ieee_double_little)
921 #ifndef TARGET_LONG_DOUBLE_FORMAT
922 # define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
925 /* Use `long double' if the host compiler supports it. (Note that this is not
926 necessarily any longer than `double'. On SunOS/gcc, it's the same as
927 double.) This is necessary because GDB internally converts all floating
928 point values to the widest type supported by the host.
930 There are problems however, when the target `long double' is longer than the
931 host's `long double'. In general, we'll probably reduce the precision of
932 any such values and print a warning. */
934 #ifdef HAVE_LONG_DOUBLE
935 typedef long double DOUBLEST
;
937 typedef double DOUBLEST
;
940 extern void floatformat_to_doublest
PARAMS ((const struct floatformat
*,
941 char *, DOUBLEST
*));
942 extern void floatformat_from_doublest
PARAMS ((const struct floatformat
*,
943 DOUBLEST
*, char *));
944 extern DOUBLEST extract_floating
PARAMS ((void *, int));
946 extern void store_floating
PARAMS ((void *, int, DOUBLEST
));
948 /* On some machines there are bits in addresses which are not really
949 part of the address, but are used by the kernel, the hardware, etc.
950 for special purposes. ADDR_BITS_REMOVE takes out any such bits
951 so we get a "real" address such as one would find in a symbol
952 table. This is used only for addresses of instructions, and even then
953 I'm not sure it's used in all contexts. It exists to deal with there
954 being a few stray bits in the PC which would mislead us, not as some sort
955 of generic thing to handle alignment or segmentation (it's possible it
956 should be in TARGET_READ_PC instead). */
957 #if !defined (ADDR_BITS_REMOVE)
958 #define ADDR_BITS_REMOVE(addr) (addr)
959 #endif /* No ADDR_BITS_REMOVE. */
963 extern CORE_ADDR push_bytes
PARAMS ((CORE_ADDR
, char *, int));
965 extern CORE_ADDR push_word
PARAMS ((CORE_ADDR
, ULONGEST
));
967 /* Some parts of gdb might be considered optional, in the sense that they
968 are not essential for being able to build a working, usable debugger
969 for a specific environment. For example, the maintenance commands
970 are there for the benefit of gdb maintainers. As another example,
971 some environments really don't need gdb's that are able to read N
972 different object file formats. In order to make it possible (but
973 not necessarily recommended) to build "stripped down" versions of
974 gdb, the following defines control selective compilation of those
975 parts of gdb which can be safely left out when necessary. Note that
976 the default is to include everything. */
978 #ifndef MAINTENANCE_CMDS
979 #define MAINTENANCE_CMDS 1
982 #ifdef MAINTENANCE_CMDS
986 #include "dis-asm.h" /* Get defs for disassemble_info */
988 extern int dis_asm_read_memory
PARAMS ((bfd_vma memaddr
, bfd_byte
*myaddr
,
989 int len
, disassemble_info
*info
));
991 extern void dis_asm_memory_error
PARAMS ((int status
, bfd_vma memaddr
,
992 disassemble_info
*info
));
994 extern void dis_asm_print_address
PARAMS ((bfd_vma addr
,
995 disassemble_info
*info
));
997 extern int (*tm_print_insn
) PARAMS ((bfd_vma
, disassemble_info
*));
998 extern disassemble_info tm_print_insn_info
;
1000 /* Hooks for alternate command interfaces. */
1003 struct target_waitstatus
;
1004 struct cmd_list_element
;
1007 extern void (*init_ui_hook
) PARAMS ((void));
1008 extern void (*command_loop_hook
) PARAMS ((void));
1009 extern void (*fputs_unfiltered_hook
) PARAMS ((const char *linebuffer
,
1011 extern void (*print_frame_info_listing_hook
) PARAMS ((struct symtab
*s
,
1012 int line
, int stopline
,
1014 extern int (*query_hook
) PARAMS ((const char *, va_list));
1015 extern void (*flush_hook
) PARAMS ((FILE *stream
));
1016 extern void (*create_breakpoint_hook
) PARAMS ((struct breakpoint
*b
));
1017 extern void (*delete_breakpoint_hook
) PARAMS ((struct breakpoint
*bpt
));
1018 extern void (*modify_breakpoint_hook
) PARAMS ((struct breakpoint
*bpt
));
1019 extern void (*target_output_hook
) PARAMS ((char *));
1020 extern void (*interactive_hook
) PARAMS ((void));
1021 extern void (*registers_changed_hook
) PARAMS ((void));
1022 extern void (*readline_begin_hook
) PARAMS ((char *, ...));
1023 extern char * (*readline_hook
) PARAMS ((char *));
1024 extern void (*readline_end_hook
) PARAMS ((void));
1026 extern int (*target_wait_hook
) PARAMS ((int pid
,
1027 struct target_waitstatus
*status
));
1029 extern void (*call_command_hook
) PARAMS ((struct cmd_list_element
*c
,
1030 char *cmd
, int from_tty
));
1032 extern NORETURN
void (*error_hook
) PARAMS ((void)) ATTR_NORETURN
;
1036 /* Inhibit window interface if non-zero. */
1038 extern int use_windows
;
1040 /* Symbolic definitions of filename-related things. */
1041 /* FIXME, this doesn't work very well if host and executable
1042 filesystems conventions are different. */
1044 #ifndef DIRNAME_SEPARATOR
1045 #define DIRNAME_SEPARATOR ':'
1049 #if defined(__GO32__)||defined(_WIN32)
1050 #define SLASH_P(X) ((X)=='\\')
1052 #define SLASH_P(X) ((X)=='/')
1057 #if defined(__GO32__)||defined(_WIN32)
1058 #define SLASH_CHAR '\\'
1060 #define SLASH_CHAR '/'
1064 #ifndef SLASH_STRING
1065 #if defined(__GO32__)||defined(_WIN32)
1066 #define SLASH_STRING "\\"
1068 #define SLASH_STRING "/"
1073 #define ROOTED_P(X) (SLASH_P((X)[0]))
1076 /* On some systems, PIDGET is defined to extract the inferior pid from
1077 an internal pid that has the thread id and pid in seperate bit
1078 fields. If not defined, then just use the entire internal pid as
1082 #define PIDGET(pid) (pid)
1085 #endif /* #ifndef DEFS_H */