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;
70 #define min(a, b) ((a) < (b) ? (a) : (b))
71 #define max(a, b) ((a) > (b) ? (a) : (b))
73 /* Gdb does *lots* of string compares. Use macros to speed them up by
74 avoiding function calls if the first characters are not the same. */
76 #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b))
77 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
78 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
80 /* The character GNU C++ uses to build identifiers that must be unique from
81 the program's identifiers (such as $this and $$vptr). */
82 #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
84 /* Check if a character is one of the commonly used C++ marker characters. */
85 extern int is_cplus_marker PARAMS ((int));
88 extern int immediate_quit;
89 extern int sevenbit_strings;
91 extern void quit PARAMS ((void));
94 if (quit_flag) quit (); \
95 if (interactive_hook) interactive_hook (); \
99 /* Command classes are top-level categories into which commands are broken
100 down for "help" purposes.
101 Notes on classes: class_alias is for alias commands which are not
102 abbreviations of the original command. class-pseudo is for commands
103 which are not really commands nor help topics ("stop"). */
107 /* Special args to help_list */
108 all_classes = -2, all_commands = -1,
109 /* Classes of commands */
110 no_class = -1, class_run = 0, class_vars, class_stack,
111 class_files, class_support, class_info, class_breakpoint,
112 class_alias, class_obscure, class_user, class_maintenance,
116 /* Languages represented in the symbol table and elsewhere.
117 This should probably be in language.h, but since enum's can't
118 be forward declared to satisfy opaque references before their
119 actual definition, needs to be here. */
123 language_unknown, /* Language not known */
124 language_auto, /* Placeholder for automatic setting */
126 language_cplus, /* C++ */
127 language_chill, /* Chill */
128 language_fortran, /* Fortran */
129 language_m2, /* Modula-2 */
130 language_asm, /* Assembly language */
131 language_scm /* Scheme / Guile */
134 /* the cleanup list records things that have to be undone
135 if an error happens (descriptors to be closed, memory to be freed, etc.)
136 Each link in the chain records a function to call and an
139 Use make_cleanup to add an element to the cleanup chain.
140 Use do_cleanups to do all cleanup actions back to a given
141 point in the chain. Use discard_cleanups to remove cleanups
142 from the chain back to a given point, not doing them. */
146 struct cleanup *next;
147 void (*function) PARAMS ((PTR));
152 /* The ability to declare that a function never returns is useful, but
153 not really required to compile GDB successfully, so the NORETURN and
154 ATTR_NORETURN macros normally expand into nothing. */
156 /* If compiling with older versions of GCC, a function may be declared
157 "volatile" to indicate that it does not return. */
160 # if defined(__GNUC__) \
161 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
162 # define NORETURN volatile
164 # define NORETURN /* nothing */
168 /* GCC 2.5 and later versions define a function attribute "noreturn",
169 which is the preferred way to declare that a function never returns.
170 However GCC 2.7 appears to be the first version in which this fully
171 works everywhere we use it. */
173 #ifndef ATTR_NORETURN
174 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 7
175 # define ATTR_NORETURN __attribute__ ((noreturn))
177 # define ATTR_NORETURN /* nothing */
182 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 4 && defined (__ANSI_PROTOTYPES)
183 # define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
185 # define ATTR_FORMAT(type, x, y) /* nothing */
189 /* Needed for various prototypes */
196 /* From blockframe.c */
198 extern int inside_entry_func PARAMS ((CORE_ADDR));
200 extern int inside_entry_file PARAMS ((CORE_ADDR addr));
202 extern int inside_main_func PARAMS ((CORE_ADDR pc));
204 /* From ch-lang.c, for the moment. (FIXME) */
206 extern char *chill_demangle PARAMS ((const char *));
210 extern PTR xmalloc PARAMS ((long));
212 extern PTR xrealloc PARAMS ((PTR, long));
214 extern void notice_quit PARAMS ((void));
216 extern int strcmp_iw PARAMS ((const char *, const char *));
218 extern char *safe_strerror PARAMS ((int));
220 extern char *safe_strsignal PARAMS ((int));
222 extern void init_malloc PARAMS ((void *));
224 extern void request_quit PARAMS ((int));
226 extern void do_cleanups PARAMS ((struct cleanup *));
228 extern void discard_cleanups PARAMS ((struct cleanup *));
230 /* The bare make_cleanup function is one of those rare beasts that
231 takes almost any type of function as the first arg and anything that
232 will fit in a "void *" as the second arg.
234 Should be, once all calls and called-functions are cleaned up:
235 extern struct cleanup *
236 make_cleanup PARAMS ((void (*function) (void *), void *));
238 Until then, lint and/or various type-checking compiler options will
239 complain about make_cleanup calls. It'd be wrong to just cast things,
240 since the type actually passed when the function is called would be
243 extern struct cleanup *make_cleanup ();
245 extern struct cleanup *save_cleanups PARAMS ((void));
247 extern void restore_cleanups PARAMS ((struct cleanup *));
249 extern void free_current_contents PARAMS ((char **));
251 extern void null_cleanup PARAMS ((PTR));
253 extern int myread PARAMS ((int, char *, int));
255 extern int query PARAMS((char *, ...))
256 ATTR_FORMAT(printf, 1, 2);
258 /* From demangle.c */
260 extern void set_demangling_style PARAMS ((char *));
263 /* Annotation stuff. */
265 extern int annotation_level; /* in stack.c */
267 extern void begin_line PARAMS ((void));
269 extern void wrap_here PARAMS ((char *));
271 extern void reinitialize_more_filter PARAMS ((void));
273 typedef FILE GDB_FILE;
274 #define gdb_stdout stdout
275 #define gdb_stderr stderr
277 extern void gdb_flush PARAMS ((GDB_FILE *));
279 extern GDB_FILE *gdb_fopen PARAMS ((char * name, char * mode));
281 extern void fputs_filtered PARAMS ((const char *, GDB_FILE *));
283 extern void fputs_unfiltered PARAMS ((const char *, GDB_FILE *));
285 extern int fputc_unfiltered PARAMS ((int c, GDB_FILE *));
287 extern int putchar_unfiltered PARAMS ((int c));
289 extern void puts_filtered PARAMS ((const char *));
291 extern void puts_unfiltered PARAMS ((const char *));
293 extern void vprintf_filtered PARAMS ((const char *, va_list))
294 ATTR_FORMAT(printf, 1, 0);
296 extern void vfprintf_filtered PARAMS ((FILE *, const char *, va_list))
297 ATTR_FORMAT(printf, 2, 0);
299 extern void fprintf_filtered PARAMS ((FILE *, const char *, ...))
300 ATTR_FORMAT(printf, 2, 3);
302 extern void fprintfi_filtered PARAMS ((int, FILE *, const char *, ...))
303 ATTR_FORMAT(printf, 3, 4);
305 extern void printf_filtered PARAMS ((const char *, ...))
306 ATTR_FORMAT(printf, 1, 2);
308 extern void printfi_filtered PARAMS ((int, const char *, ...))
309 ATTR_FORMAT(printf, 2, 3);
311 extern void vprintf_unfiltered PARAMS ((const char *, va_list))
312 ATTR_FORMAT(printf, 1, 0);
314 extern void vfprintf_unfiltered PARAMS ((FILE *, const char *, va_list))
315 ATTR_FORMAT(printf, 2, 0);
317 extern void fprintf_unfiltered PARAMS ((FILE *, const char *, ...))
318 ATTR_FORMAT(printf, 2, 3);
320 extern void printf_unfiltered PARAMS ((const char *, ...))
321 ATTR_FORMAT(printf, 1, 2);
323 extern void print_spaces PARAMS ((int, GDB_FILE *));
325 extern void print_spaces_filtered PARAMS ((int, GDB_FILE *));
327 extern char *n_spaces PARAMS ((int));
329 extern void gdb_printchar PARAMS ((int, GDB_FILE *, int));
331 extern void gdb_print_address PARAMS ((void *, GDB_FILE *));
333 extern void fprintf_symbol_filtered PARAMS ((GDB_FILE *, char *,
334 enum language, int));
336 extern void perror_with_name PARAMS ((char *));
338 extern void print_sys_errmsg PARAMS ((char *, int));
340 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
341 "const char *" in unistd.h, so we can't declare the argument
344 extern char *re_comp PARAMS ((const char *));
348 extern void symbol_file_command PARAMS ((char *, int));
352 extern char *skip_quoted PARAMS ((char *));
354 extern char *gdb_readline PARAMS ((char *));
356 extern char *command_line_input PARAMS ((char *, int, char *));
358 extern void print_prompt PARAMS ((void));
360 extern int input_from_terminal_p PARAMS ((void));
362 extern int info_verbose;
364 /* From printcmd.c */
366 extern void set_next_address PARAMS ((CORE_ADDR));
368 extern void print_address_symbolic PARAMS ((CORE_ADDR, GDB_FILE *, int,
371 extern void print_address_numeric PARAMS ((CORE_ADDR, int, GDB_FILE *));
373 extern void print_address PARAMS ((CORE_ADDR, GDB_FILE *));
377 extern int openp PARAMS ((char *, int, char *, int, int, char **));
379 extern void mod_path PARAMS ((char *, char **));
381 extern void directory_command PARAMS ((char *, int));
383 extern void init_source_path PARAMS ((void));
385 extern char *symtab_to_filename PARAMS ((struct symtab *));
389 extern int read_relative_register_raw_bytes PARAMS ((int, char *));
391 /* From readline (but not in any readline .h files). */
393 extern char *tilde_expand PARAMS ((char *));
395 /* Control types for commands */
397 enum misc_command_type
405 enum command_control_type
415 /* Structure for saved commands lines
416 (for breakpoints, defined commands, etc). */
420 struct command_line *next;
422 enum command_control_type control_type;
424 struct command_line **body_list;
427 extern struct command_line *read_command_lines PARAMS ((char *, int));
429 extern void free_command_lines PARAMS ((struct command_line **));
431 /* String containing the current directory (what getwd would return). */
433 extern char *current_directory;
435 /* Default radixes for input and output. Only some values supported. */
436 extern unsigned input_radix;
437 extern unsigned output_radix;
439 /* Possibilities for prettyprint parameters to routines which print
440 things. Like enum language, this should be in value.h, but needs
441 to be here for the same reason. FIXME: If we can eliminate this
442 as an arg to LA_VAL_PRINT, then we can probably move it back to
447 Val_no_prettyprint = 0,
449 /* Use the default setting which the user has specified. */
454 /* Host machine definition. This will be a symlink to one of the
455 xm-*.h files, built by the `configure' script. */
459 /* Native machine support. This will be a symlink to one of the
460 nm-*.h files, built by the `configure' script. */
464 /* Target machine definition. This will be a symlink to one of the
465 tm-*.h files, built by the `configure' script. */
469 /* If the xm.h file did not define the mode string used to open the
470 files, assume that binary files are opened the same way as text
473 #include "fopen-same.h"
476 /* Microsoft C can't deal with const pointers */
481 #define CONST_PTR const
485 * Allow things in gdb to be declared "volatile". If compiling ANSI, it
486 * just works. If compiling with gcc but non-ansi, redefine to __volatile__.
487 * If non-ansi, non-gcc, then eliminate "volatile" entirely, making those
488 * objects be read-write rather than read-only.
494 # define volatile __volatile__
496 # define volatile /*nothing*/
499 #endif /* volatile */
501 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
502 FIXME: Assumes 2's complement arithmetic */
504 #if !defined (UINT_MAX)
505 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
508 #if !defined (INT_MAX)
509 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
512 #if !defined (INT_MIN)
513 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
516 #if !defined (ULONG_MAX)
517 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
520 #if !defined (LONG_MAX)
521 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
526 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
528 #define LONGEST BFD_HOST_64_BIT
532 /* LONGEST should not be a typedef, because "unsigned LONGEST" needs to work.
533 CC_HAS_LONG_LONG is defined if the host compiler supports "long long" */
536 # ifdef CC_HAS_LONG_LONG
537 # define LONGEST long long
539 # define LONGEST long
543 #endif /* No BFD64 */
545 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
546 arguments to a function, number in a value history, register number, etc.)
547 where the value must not be larger than can fit in an int. */
549 extern int longest_to_int PARAMS ((LONGEST));
551 /* Assorted functions we can declare, now that const and volatile are
554 extern char *savestring PARAMS ((const char *, int));
556 extern char *msavestring PARAMS ((void *, const char *, int));
558 extern char *strsave PARAMS ((const char *));
560 extern char *mstrsave PARAMS ((void *, const char *));
562 extern PTR xmmalloc PARAMS ((PTR, long));
564 extern PTR xmrealloc PARAMS ((PTR, PTR, long));
566 extern int parse_escape PARAMS ((char **));
568 extern char *reg_names[];
570 /* Message to be printed before the error message, when an error occurs. */
572 extern char *error_pre_print;
574 /* Message to be printed before the error message, when an error occurs. */
576 extern char *quit_pre_print;
578 /* Message to be printed before the warning message, when a warning occurs. */
580 extern char *warning_pre_print;
582 extern NORETURN void error PARAMS((char *, ...)) ATTR_NORETURN;
584 extern void error_begin PARAMS ((void));
586 extern NORETURN void fatal PARAMS((char *, ...)) ATTR_NORETURN;
588 extern NORETURN void nomem PARAMS ((long)) ATTR_NORETURN;
590 /* Reasons for calling return_to_top_level. */
592 /* User interrupt. */
595 /* Any other error. */
599 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
600 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
601 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
602 typedef int return_mask;
605 return_to_top_level PARAMS ((enum return_reason)) ATTR_NORETURN;
608 catch_errors PARAMS ((int (*) (char *), void *, char *, return_mask));
610 extern void warning_begin PARAMS ((void));
612 extern void warning PARAMS ((char *, ...))
613 ATTR_FORMAT(printf, 1, 2);
615 /* Global functions from other, non-gdb GNU thingies.
616 Libiberty thingies are no longer declared here. We include libiberty.h
619 #ifndef GETENV_PROVIDED
620 extern char *getenv PARAMS ((const char *));
623 /* From other system libraries */
634 /* We take the address of fclose later, but some stdio's forget
635 to declare this. We can't always declare it since there's
636 no way to declare the parameters without upsetting some compiler
639 #ifndef FCLOSE_PROVIDED
640 extern int fclose PARAMS ((FILE *));
644 extern double atof PARAMS ((const char *)); /* X3.159-1989 4.10.1.1 */
647 #ifndef MALLOC_INCOMPATIBLE
649 #ifdef NEED_DECLARATION_MALLOC
650 extern PTR malloc ();
653 #ifdef NEED_DECLARATION_REALLOC
654 extern PTR realloc ();
657 #ifdef NEED_DECLARATION_FREE
661 #endif /* MALLOC_INCOMPATIBLE */
663 /* Various possibilities for alloca. */
666 # define alloca __builtin_alloca
667 # else /* Not GNU C */
669 # include <alloca.h> /* NOTE: Doesn't declare alloca() */
672 /* We need to be careful not to declare this in a way which conflicts with
673 bison. Bison never declares it as char *, but under various circumstances
674 (like __hpux) we need to use void *. */
675 # if defined (__STDC__) || defined (__hpux)
676 extern void *alloca ();
677 # else /* Don't use void *. */
678 extern char *alloca ();
679 # endif /* Don't use void *. */
680 # endif /* Not GNU C */
681 #endif /* alloca not defined */
683 /* HOST_BYTE_ORDER must be defined to one of these. */
689 #if !defined (BIG_ENDIAN)
690 #define BIG_ENDIAN 4321
693 #if !defined (LITTLE_ENDIAN)
694 #define LITTLE_ENDIAN 1234
697 /* Target-system-dependent parameters for GDB. */
699 #ifdef TARGET_BYTE_ORDER_SELECTABLE
700 /* The target endianness is selectable at runtime. Define
701 TARGET_BYTE_ORDER to be a variable. The user can use the `set
702 endian' command to change it. */
703 #undef TARGET_BYTE_ORDER
704 #define TARGET_BYTE_ORDER target_byte_order
705 extern int target_byte_order;
708 extern void set_endian_from_file PARAMS ((bfd *));
710 /* Number of bits in a char or unsigned char for the target machine.
711 Just like CHAR_BIT in <limits.h> but describes the target machine. */
712 #if !defined (TARGET_CHAR_BIT)
713 #define TARGET_CHAR_BIT 8
716 /* Number of bits in a short or unsigned short for the target machine. */
717 #if !defined (TARGET_SHORT_BIT)
718 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
721 /* Number of bits in an int or unsigned int for the target machine. */
722 #if !defined (TARGET_INT_BIT)
723 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
726 /* Number of bits in a long or unsigned long for the target machine. */
727 #if !defined (TARGET_LONG_BIT)
728 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
731 /* Number of bits in a long long or unsigned long long for the target machine. */
732 #if !defined (TARGET_LONG_LONG_BIT)
733 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
736 /* Number of bits in a float for the target machine. */
737 #if !defined (TARGET_FLOAT_BIT)
738 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
741 /* Number of bits in a double for the target machine. */
742 #if !defined (TARGET_DOUBLE_BIT)
743 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
746 /* Number of bits in a long double for the target machine. */
747 #if !defined (TARGET_LONG_DOUBLE_BIT)
748 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
751 /* Number of bits in a pointer for the target machine */
752 #if !defined (TARGET_PTR_BIT)
753 #define TARGET_PTR_BIT TARGET_INT_BIT
756 /* If we picked up a copy of CHAR_BIT from a configuration file
757 (which may get it by including <limits.h>) then use it to set
758 the number of bits in a host char. If not, use the same size
761 #if defined (CHAR_BIT)
762 #define HOST_CHAR_BIT CHAR_BIT
764 #define HOST_CHAR_BIT TARGET_CHAR_BIT
767 /* The bit byte-order has to do just with numbering of bits in
768 debugging symbols and such. Conceptually, it's quite separate
769 from byte/word byte order. */
771 #if !defined (BITS_BIG_ENDIAN)
772 #ifndef TARGET_BYTE_ORDER_SELECTABLE
774 #if TARGET_BYTE_ORDER == BIG_ENDIAN
775 #define BITS_BIG_ENDIAN 1
776 #endif /* Big endian. */
778 #if TARGET_BYTE_ORDER == LITTLE_ENDIAN
779 #define BITS_BIG_ENDIAN 0
780 #endif /* Little endian. */
782 #else /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
784 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
786 #endif /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
787 #endif /* BITS_BIG_ENDIAN not defined. */
791 extern LONGEST extract_signed_integer PARAMS ((void *, int));
793 extern unsigned LONGEST extract_unsigned_integer PARAMS ((void *, int));
795 extern int extract_long_unsigned_integer PARAMS ((void *, int, LONGEST *));
797 extern CORE_ADDR extract_address PARAMS ((void *, int));
799 extern void store_signed_integer PARAMS ((void *, int, LONGEST));
801 extern void store_unsigned_integer PARAMS ((void *, int, unsigned LONGEST));
803 extern void store_address PARAMS ((void *, int, CORE_ADDR));
805 /* Setup definitions for host and target floating point formats. We need to
806 consider the format for `float', `double', and `long double' for both target
807 and host. We need to do this so that we know what kind of conversions need
808 to be done when converting target numbers to and from the hosts DOUBLEST
811 /* This is used to indicate that we don't know the format of the floating point
812 number. Typically, this is useful for native ports, where the actual format
813 is irrelevant, since no conversions will be taking place. */
815 extern const struct floatformat floatformat_unknown;
817 #if HOST_BYTE_ORDER == BIG_ENDIAN
818 # ifndef HOST_FLOAT_FORMAT
819 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
821 # ifndef HOST_DOUBLE_FORMAT
822 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
824 #else /* LITTLE_ENDIAN */
825 # ifndef HOST_FLOAT_FORMAT
826 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
828 # ifndef HOST_DOUBLE_FORMAT
829 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
833 #ifndef HOST_LONG_DOUBLE_FORMAT
834 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
837 #ifndef TARGET_BYTE_ORDER_SELECTABLE
838 # if TARGET_BYTE_ORDER == BIG_ENDIAN
839 # ifndef TARGET_FLOAT_FORMAT
840 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_big
842 # ifndef TARGET_DOUBLE_FORMAT
843 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_big
845 # else /* LITTLE_ENDIAN */
846 # ifndef TARGET_FLOAT_FORMAT
847 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_little
849 # ifndef TARGET_DOUBLE_FORMAT
850 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_little
853 #else /* TARGET_BYTE_ORDER_SELECTABLE */
854 # ifndef TARGET_FLOAT_FORMAT
855 # define TARGET_FLOAT_FORMAT (target_byte_order == BIG_ENDIAN \
856 ? &floatformat_ieee_single_big \
857 : &floatformat_ieee_single_little)
859 # ifndef TARGET_DOUBLE_FORMAT
860 # define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
861 ? &floatformat_ieee_double_big \
862 : &floatformat_ieee_double_little)
866 #ifndef TARGET_LONG_DOUBLE_FORMAT
867 # define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
870 /* Use `long double' if the host compiler supports it. (Note that this is not
871 necessarily any longer than `double'. On SunOS/gcc, it's the same as
872 double.) This is necessary because GDB internally converts all floating
873 point values to the widest type supported by the host.
875 There are problems however, when the target `long double' is longer than the
876 host's `long double'. In general, we'll probably reduce the precision of
877 any such values and print a warning. */
879 #ifdef HAVE_LONG_DOUBLE
880 typedef long double DOUBLEST;
882 typedef double DOUBLEST;
885 extern void floatformat_to_doublest PARAMS ((const struct floatformat *,
886 char *, DOUBLEST *));
887 extern void floatformat_from_doublest PARAMS ((const struct floatformat *,
888 DOUBLEST *, char *));
889 extern DOUBLEST extract_floating PARAMS ((void *, int));
891 extern void store_floating PARAMS ((void *, int, DOUBLEST));
893 /* On some machines there are bits in addresses which are not really
894 part of the address, but are used by the kernel, the hardware, etc.
895 for special purposes. ADDR_BITS_REMOVE takes out any such bits
896 so we get a "real" address such as one would find in a symbol
897 table. This is used only for addresses of instructions, and even then
898 I'm not sure it's used in all contexts. It exists to deal with there
899 being a few stray bits in the PC which would mislead us, not as some sort
900 of generic thing to handle alignment or segmentation (it's possible it
901 should be in TARGET_READ_PC instead). */
902 #if !defined (ADDR_BITS_REMOVE)
903 #define ADDR_BITS_REMOVE(addr) (addr)
904 #endif /* No ADDR_BITS_REMOVE. */
908 extern CORE_ADDR push_bytes PARAMS ((CORE_ADDR, char *, int));
910 extern CORE_ADDR push_word PARAMS ((CORE_ADDR, unsigned LONGEST));
912 /* Some parts of gdb might be considered optional, in the sense that they
913 are not essential for being able to build a working, usable debugger
914 for a specific environment. For example, the maintenance commands
915 are there for the benefit of gdb maintainers. As another example,
916 some environments really don't need gdb's that are able to read N
917 different object file formats. In order to make it possible (but
918 not necessarily recommended) to build "stripped down" versions of
919 gdb, the following defines control selective compilation of those
920 parts of gdb which can be safely left out when necessary. Note that
921 the default is to include everything. */
923 #ifndef MAINTENANCE_CMDS
924 #define MAINTENANCE_CMDS 1
927 #ifdef MAINTENANCE_CMDS
931 #include "dis-asm.h" /* Get defs for disassemble_info */
933 extern int dis_asm_read_memory PARAMS ((bfd_vma memaddr, bfd_byte *myaddr,
934 int len, disassemble_info *info));
936 extern void dis_asm_memory_error PARAMS ((int status, bfd_vma memaddr,
937 disassemble_info *info));
939 extern void dis_asm_print_address PARAMS ((bfd_vma addr,
940 disassemble_info *info));
942 extern int (*tm_print_insn) PARAMS ((bfd_vma, disassemble_info*));
943 extern disassemble_info tm_print_insn_info;
945 /* Hooks for alternate command interfaces. */
948 struct target_waitstatus;
949 struct cmd_list_element;
952 extern void (*init_ui_hook) PARAMS ((void));
953 extern void (*command_loop_hook) PARAMS ((void));
954 extern void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer,
956 extern void (*print_frame_info_listing_hook) PARAMS ((struct symtab *s,
957 int line, int stopline,
959 extern int (*query_hook) PARAMS ((const char *, va_list));
960 extern void (*flush_hook) PARAMS ((FILE *stream));
961 extern void (*create_breakpoint_hook) PARAMS ((struct breakpoint *b));
962 extern void (*delete_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
963 extern void (*modify_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
964 extern void (*target_output_hook) PARAMS ((char *));
965 extern void (*interactive_hook) PARAMS ((void));
966 extern void (*registers_changed_hook) PARAMS ((void));
967 extern void (*readline_begin_hook) PARAMS ((char *, ...));
968 extern char * (*readline_hook) PARAMS ((char *));
969 extern void (*readline_end_hook) PARAMS ((void));
971 extern int (*target_wait_hook) PARAMS ((int pid,
972 struct target_waitstatus *status));
974 extern void (*call_command_hook) PARAMS ((struct cmd_list_element *c,
975 char *cmd, int from_tty));
977 extern NORETURN void (*error_hook) PARAMS ((void)) ATTR_NORETURN;
981 /* Inhibit window interface if non-zero. */
983 extern int use_windows;
985 /* Symbolic definitions of filename-related things. */
986 /* FIXME, this doesn't work very well if host and executable
987 filesystems conventions are different. */
989 #ifndef DIRNAME_SEPARATOR
990 #define DIRNAME_SEPARATOR ':'
994 #if defined(__GO32__)||defined(_WIN32)
995 #define SLASH_P(X) ((X)=='\\')
997 #define SLASH_P(X) ((X)=='/')
1002 #if defined(__GO32__)||defined(_WIN32)
1003 #define SLASH_CHAR '\\'
1005 #define SLASH_CHAR '/'
1009 #ifndef SLASH_STRING
1010 #if defined(__GO32__)||defined(_WIN32)
1011 #define SLASH_STRING "\\"
1013 #define SLASH_STRING "/"
1018 #define ROOTED_P(X) (SLASH_P((X)[0]))
1021 #endif /* #ifndef DEFS_H */