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 int strcmp_iw PARAMS ((const char *, const char *));
212 extern char *safe_strerror PARAMS ((int));
214 extern char *safe_strsignal PARAMS ((int));
216 extern void init_malloc PARAMS ((void *));
218 extern void request_quit PARAMS ((int));
220 extern void do_cleanups PARAMS ((struct cleanup *));
222 extern void discard_cleanups PARAMS ((struct cleanup *));
224 /* The bare make_cleanup function is one of those rare beasts that
225 takes almost any type of function as the first arg and anything that
226 will fit in a "void *" as the second arg.
228 Should be, once all calls and called-functions are cleaned up:
229 extern struct cleanup *
230 make_cleanup PARAMS ((void (*function) (void *), void *));
232 Until then, lint and/or various type-checking compiler options will
233 complain about make_cleanup calls. It'd be wrong to just cast things,
234 since the type actually passed when the function is called would be
237 extern struct cleanup *make_cleanup ();
239 extern struct cleanup *save_cleanups PARAMS ((void));
241 extern void restore_cleanups PARAMS ((struct cleanup *));
243 extern void free_current_contents PARAMS ((char **));
245 extern void null_cleanup PARAMS ((char **));
247 extern int myread PARAMS ((int, char *, int));
249 extern int query PARAMS((char *, ...))
250 ATTR_FORMAT(printf, 1, 2);
252 /* Annotation stuff. */
254 extern int annotation_level; /* in stack.c */
256 extern void begin_line PARAMS ((void));
258 extern void wrap_here PARAMS ((char *));
260 extern void reinitialize_more_filter PARAMS ((void));
262 typedef FILE GDB_FILE;
263 #define gdb_stdout stdout
264 #define gdb_stderr stderr
266 extern void gdb_flush PARAMS ((GDB_FILE *));
268 extern GDB_FILE *gdb_fopen PARAMS ((char * name, char * mode));
270 extern void fputs_filtered PARAMS ((const char *, GDB_FILE *));
272 extern void fputs_unfiltered PARAMS ((const char *, GDB_FILE *));
274 extern int fputc_unfiltered PARAMS ((int c, GDB_FILE *));
276 extern int putchar_unfiltered PARAMS ((int c));
278 extern void puts_filtered PARAMS ((const char *));
280 extern void puts_unfiltered PARAMS ((const char *));
282 extern void vprintf_filtered PARAMS ((const char *, va_list))
283 ATTR_FORMAT(printf, 1, 0);
285 extern void vfprintf_filtered PARAMS ((FILE *, const char *, va_list))
286 ATTR_FORMAT(printf, 2, 0);
288 extern void fprintf_filtered PARAMS ((FILE *, const char *, ...))
289 ATTR_FORMAT(printf, 2, 3);
291 extern void fprintfi_filtered PARAMS ((int, FILE *, const char *, ...))
292 ATTR_FORMAT(printf, 3, 4);
294 extern void printf_filtered PARAMS ((const char *, ...))
295 ATTR_FORMAT(printf, 1, 2);
297 extern void printfi_filtered PARAMS ((int, const char *, ...))
298 ATTR_FORMAT(printf, 2, 3);
300 extern void vprintf_unfiltered PARAMS ((const char *, va_list))
301 ATTR_FORMAT(printf, 1, 0);
303 extern void vfprintf_unfiltered PARAMS ((FILE *, const char *, va_list))
304 ATTR_FORMAT(printf, 2, 0);
306 extern void fprintf_unfiltered PARAMS ((FILE *, const char *, ...))
307 ATTR_FORMAT(printf, 2, 3);
309 extern void printf_unfiltered PARAMS ((const char *, ...))
310 ATTR_FORMAT(printf, 1, 2);
312 extern void print_spaces PARAMS ((int, GDB_FILE *));
314 extern void print_spaces_filtered PARAMS ((int, GDB_FILE *));
316 extern char *n_spaces PARAMS ((int));
318 extern void gdb_printchar PARAMS ((int, GDB_FILE *, int));
320 extern void gdb_print_address PARAMS ((void *, GDB_FILE *));
322 extern void fprintf_symbol_filtered PARAMS ((GDB_FILE *, char *,
323 enum language, int));
325 extern void perror_with_name PARAMS ((char *));
327 extern void print_sys_errmsg PARAMS ((char *, int));
329 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
330 "const char *" in unistd.h, so we can't declare the argument
333 extern char *re_comp PARAMS ((const char *));
337 extern void symbol_file_command PARAMS ((char *, int));
341 extern char *skip_quoted PARAMS ((char *));
343 extern char *gdb_readline PARAMS ((char *));
345 extern char *command_line_input PARAMS ((char *, int, char *));
347 extern void print_prompt PARAMS ((void));
349 extern int input_from_terminal_p PARAMS ((void));
351 extern int info_verbose;
353 /* From printcmd.c */
355 extern void set_next_address PARAMS ((CORE_ADDR));
357 extern void print_address_symbolic PARAMS ((CORE_ADDR, GDB_FILE *, int,
360 extern void print_address_numeric PARAMS ((CORE_ADDR, int, GDB_FILE *));
362 extern void print_address PARAMS ((CORE_ADDR, GDB_FILE *));
366 extern int openp PARAMS ((char *, int, char *, int, int, char **));
368 extern void mod_path PARAMS ((char *, char **));
370 extern void directory_command PARAMS ((char *, int));
372 extern void init_source_path PARAMS ((void));
374 extern char *symtab_to_filename PARAMS ((struct symtab *));
378 extern int read_relative_register_raw_bytes PARAMS ((int, char *));
380 /* From readline (but not in any readline .h files). */
382 extern char *tilde_expand PARAMS ((char *));
384 /* Control types for commands */
386 enum misc_command_type
394 enum command_control_type
404 /* Structure for saved commands lines
405 (for breakpoints, defined commands, etc). */
409 struct command_line *next;
411 enum command_control_type control_type;
413 struct command_line **body_list;
416 extern struct command_line *read_command_lines PARAMS ((void));
418 extern void free_command_lines PARAMS ((struct command_line **));
420 /* String containing the current directory (what getwd would return). */
422 extern char *current_directory;
424 /* Default radixes for input and output. Only some values supported. */
425 extern unsigned input_radix;
426 extern unsigned output_radix;
428 /* Possibilities for prettyprint parameters to routines which print
429 things. Like enum language, this should be in value.h, but needs
430 to be here for the same reason. FIXME: If we can eliminate this
431 as an arg to LA_VAL_PRINT, then we can probably move it back to
436 Val_no_prettyprint = 0,
438 /* Use the default setting which the user has specified. */
443 /* Host machine definition. This will be a symlink to one of the
444 xm-*.h files, built by the `configure' script. */
448 /* Native machine support. This will be a symlink to one of the
449 nm-*.h files, built by the `configure' script. */
453 /* Target machine definition. This will be a symlink to one of the
454 tm-*.h files, built by the `configure' script. */
458 /* If the xm.h file did not define the mode string used to open the
459 files, assume that binary files are opened the same way as text
462 #include "fopen-same.h"
466 * Allow things in gdb to be declared "const". If compiling ANSI, it
467 * just works. If compiling with gcc but non-ansi, redefine to __const__.
468 * If non-ansi, non-gcc, then eliminate "const" entirely, making those
469 * objects be read-write rather than read-only.
475 # define const __const__
477 # define const /*nothing*/
485 # define volatile __volatile__
487 # define volatile /*nothing*/
490 #endif /* volatile */
492 /* Defaults for system-wide constants (if not defined by xm.h, we fake it). */
494 #if !defined (UINT_MAX)
495 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
498 #if !defined (INT_MAX)
499 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
502 #if !defined (INT_MIN)
503 #define INT_MIN (-INT_MAX - 1) /* 0x80000000 for 32-bits */
506 #if !defined (ULONG_MAX)
507 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
510 #if !defined (LONG_MAX)
511 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
516 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
518 #define LONGEST BFD_HOST_64_BIT
522 /* If all compilers for this host support "long long" and we want to
523 use it for LONGEST (the performance hit is about 10% on a testsuite
524 run based on one DECstation test), then the xm.h file can define
527 Using GCC 1.39 on BSDI with long long causes about 700 new
528 testsuite failures. Using long long for LONGEST on the DECstation
529 causes 3 new FAILs in the testsuite and many heuristic fencepost
530 warnings. These are not investigated, but a first guess would be
531 that the BSDI problems are GCC bugs in long long support and the
532 latter are GDB bugs. */
534 #ifndef CC_HAS_LONG_LONG
535 # if defined (__GNUC__) && defined (FORCE_LONG_LONG)
536 # define CC_HAS_LONG_LONG 1
540 /* LONGEST should not be a typedef, because "unsigned LONGEST" needs to work.
541 CC_HAS_LONG_LONG is defined if the host compiler supports "long long"
542 variables and we wish to make use of that support. */
545 # ifdef CC_HAS_LONG_LONG
546 # define LONGEST long long
548 # define LONGEST long
552 #endif /* No BFD64 */
554 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
555 arguments to a function, number in a value history, register number, etc.)
556 where the value must not be larger than can fit in an int. */
558 extern int longest_to_int PARAMS ((LONGEST));
560 /* Assorted functions we can declare, now that const and volatile are
563 extern char *savestring PARAMS ((const char *, int));
565 extern char *msavestring PARAMS ((void *, const char *, int));
567 extern char *strsave PARAMS ((const char *));
569 extern char *mstrsave PARAMS ((void *, const char *));
571 extern PTR xmmalloc PARAMS ((PTR, long));
573 extern PTR xmrealloc PARAMS ((PTR, PTR, long));
575 extern int parse_escape PARAMS ((char **));
577 extern char *reg_names[];
579 /* Message to be printed before the error message, when an error occurs. */
581 extern char *error_pre_print;
583 /* Message to be printed before the error message, when an error occurs. */
585 extern char *quit_pre_print;
587 /* Message to be printed before the warning message, when a warning occurs. */
589 extern char *warning_pre_print;
591 extern NORETURN void error PARAMS((char *, ...)) ATTR_NORETURN;
593 extern void error_begin PARAMS ((void));
595 extern NORETURN void fatal PARAMS((char *, ...)) ATTR_NORETURN;
597 extern NORETURN void nomem PARAMS ((long)) ATTR_NORETURN;
599 /* Reasons for calling return_to_top_level. */
601 /* User interrupt. */
604 /* Any other error. */
608 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
609 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
610 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
611 typedef int return_mask;
614 return_to_top_level PARAMS ((enum return_reason)) ATTR_NORETURN;
617 catch_errors PARAMS ((int (*) (char *), void *, char *, return_mask));
619 extern void warning_begin PARAMS ((void));
621 extern void warning PARAMS ((char *, ...))
622 ATTR_FORMAT(printf, 1, 2);
624 /* Global functions from other, non-gdb GNU thingies.
625 Libiberty thingies are no longer declared here. We include libiberty.h
628 #ifndef GETENV_PROVIDED
629 extern char *getenv PARAMS ((const char *));
632 /* From other system libraries */
640 /* We take the address of fclose later, but some stdio's forget
641 to declare this. We can't always declare it since there's
642 no way to declare the parameters without upsetting some compiler
645 #ifndef FCLOSE_PROVIDED
646 extern int fclose ();
650 extern double atof ();
653 #ifndef MALLOC_INCOMPATIBLE
655 extern PTR malloc ();
657 extern PTR realloc ();
661 #endif /* MALLOC_INCOMPATIBLE */
666 extern char *strchr ();
670 extern char *strrchr ();
674 extern char *strstr ();
678 extern char *strtok ();
682 extern char *strerror ();
685 #endif /* !__WIN32__ */
687 /* Various possibilities for alloca. */
690 # define alloca __builtin_alloca
691 # else /* Not GNU C */
693 # include <alloca.h> /* NOTE: Doesn't declare alloca() */
696 /* We need to be careful not to declare this in a way which conflicts with
697 bison. Bison never declares it as char *, but under various circumstances
698 (like __hpux) we need to use void *. */
699 # if defined (__STDC__) || defined (__hpux)
700 extern void *alloca ();
701 # else /* Don't use void *. */
702 extern char *alloca ();
703 # endif /* Don't use void *. */
704 # endif /* Not GNU C */
705 #endif /* alloca not defined */
707 /* HOST_BYTE_ORDER must be defined to one of these. */
713 #if !defined (BIG_ENDIAN)
714 #define BIG_ENDIAN 4321
717 #if !defined (LITTLE_ENDIAN)
718 #define LITTLE_ENDIAN 1234
721 /* Target-system-dependent parameters for GDB. */
723 #ifdef TARGET_BYTE_ORDER_SELECTABLE
724 /* The target endianness is selectable at runtime. Define
725 TARGET_BYTE_ORDER to be a variable. The user can use the `set
726 endian' command to change it. */
727 #undef TARGET_BYTE_ORDER
728 #define TARGET_BYTE_ORDER target_byte_order
729 extern int target_byte_order;
732 extern void set_endian_from_file PARAMS ((bfd *));
734 /* Number of bits in a char or unsigned char for the target machine.
735 Just like CHAR_BIT in <limits.h> but describes the target machine. */
736 #if !defined (TARGET_CHAR_BIT)
737 #define TARGET_CHAR_BIT 8
740 /* Number of bits in a short or unsigned short for the target machine. */
741 #if !defined (TARGET_SHORT_BIT)
742 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
745 /* Number of bits in an int or unsigned int for the target machine. */
746 #if !defined (TARGET_INT_BIT)
747 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
750 /* Number of bits in a long or unsigned long for the target machine. */
751 #if !defined (TARGET_LONG_BIT)
752 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
755 /* Number of bits in a long long or unsigned long long for the target machine. */
756 #if !defined (TARGET_LONG_LONG_BIT)
757 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
760 /* Number of bits in a float for the target machine. */
761 #if !defined (TARGET_FLOAT_BIT)
762 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
765 /* Number of bits in a double for the target machine. */
766 #if !defined (TARGET_DOUBLE_BIT)
767 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
770 /* Number of bits in a long double for the target machine. */
771 #if !defined (TARGET_LONG_DOUBLE_BIT)
772 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
775 /* Number of bits in a pointer for the target machine */
776 #if !defined (TARGET_PTR_BIT)
777 #define TARGET_PTR_BIT TARGET_INT_BIT
780 /* If we picked up a copy of CHAR_BIT from a configuration file
781 (which may get it by including <limits.h>) then use it to set
782 the number of bits in a host char. If not, use the same size
785 #if defined (CHAR_BIT)
786 #define HOST_CHAR_BIT CHAR_BIT
788 #define HOST_CHAR_BIT TARGET_CHAR_BIT
791 /* The bit byte-order has to do just with numbering of bits in
792 debugging symbols and such. Conceptually, it's quite separate
793 from byte/word byte order. */
795 #if !defined (BITS_BIG_ENDIAN)
796 #ifndef TARGET_BYTE_ORDER_SELECTABLE
798 #if TARGET_BYTE_ORDER == BIG_ENDIAN
799 #define BITS_BIG_ENDIAN 1
800 #endif /* Big endian. */
802 #if TARGET_BYTE_ORDER == LITTLE_ENDIAN
803 #define BITS_BIG_ENDIAN 0
804 #endif /* Little endian. */
806 #else /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
808 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
810 #endif /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
811 #endif /* BITS_BIG_ENDIAN not defined. */
815 extern LONGEST extract_signed_integer PARAMS ((void *, int));
817 extern unsigned LONGEST extract_unsigned_integer PARAMS ((void *, int));
819 extern int extract_long_unsigned_integer PARAMS ((void *, int, LONGEST *));
821 extern CORE_ADDR extract_address PARAMS ((void *, int));
823 extern void store_signed_integer PARAMS ((void *, int, LONGEST));
825 extern void store_unsigned_integer PARAMS ((void *, int, unsigned LONGEST));
827 extern void store_address PARAMS ((void *, int, CORE_ADDR));
829 /* Setup definitions for host and target floating point formats. We need to
830 consider the format for `float', `double', and `long double' for both target
831 and host. We need to do this so that we know what kind of conversions need
832 to be done when converting target numbers to and from the hosts DOUBLEST
835 /* This is used to indicate that we don't know the format of the floating point
836 number. Typically, this is useful for native ports, where the actual format
837 is irrelevant, since no conversions will be taking place. */
839 extern const struct floatformat floatformat_unknown;
841 #if HOST_BYTE_ORDER == BIG_ENDIAN
842 # ifndef HOST_FLOAT_FORMAT
843 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
845 # ifndef HOST_DOUBLE_FORMAT
846 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
848 #else /* LITTLE_ENDIAN */
849 # ifndef HOST_FLOAT_FORMAT
850 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
852 # ifndef HOST_DOUBLE_FORMAT
853 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
857 #ifndef HOST_LONG_DOUBLE_FORMAT
858 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
861 #ifndef TARGET_BYTE_ORDER_SELECTABLE
862 # if TARGET_BYTE_ORDER == BIG_ENDIAN
863 # ifndef TARGET_FLOAT_FORMAT
864 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_big
866 # ifndef TARGET_DOUBLE_FORMAT
867 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_big
869 # else /* LITTLE_ENDIAN */
870 # ifndef TARGET_FLOAT_FORMAT
871 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_little
873 # ifndef TARGET_DOUBLE_FORMAT
874 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_little
877 #else /* TARGET_BYTE_ORDER_SELECTABLE */
878 # ifndef TARGET_FLOAT_FORMAT
879 # define TARGET_FLOAT_FORMAT (target_byte_order == BIG_ENDIAN \
880 ? &floatformat_ieee_single_big \
881 : &floatformat_ieee_single_little)
883 # ifndef TARGET_DOUBLE_FORMAT
884 # define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
885 ? &floatformat_ieee_double_big \
886 : &floatformat_ieee_double_little)
890 #ifndef TARGET_LONG_DOUBLE_FORMAT
891 # define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
894 /* Use `long double' if the host compiler supports it. (Note that this is not
895 necessarily any longer than `double'. On SunOS/gcc, it's the same as
896 double.) This is necessary because GDB internally converts all floating
897 point values to the widest type supported by the host.
899 There are problems however, when the target `long double' is longer than the
900 host's `long double'. In general, we'll probably reduce the precision of
901 any such values and print a warning. */
903 #ifdef HAVE_LONG_DOUBLE
904 typedef long double DOUBLEST;
905 extern void floatformat_to_long_double PARAMS ((const struct floatformat *,
906 char *, DOUBLEST *));
907 extern void floatformat_from_long_double PARAMS ((const struct floatformat *,
908 DOUBLEST *, char *));
909 #define FLOATFORMAT_TO_DOUBLEST floatformat_to_long_double
910 #define FLOATFORMAT_FROM_DOUBLEST floatformat_from_long_double
912 typedef double DOUBLEST;
913 #define FLOATFORMAT_TO_DOUBLEST floatformat_to_double
914 #define FLOATFORMAT_FROM_DOUBLEST floatformat_from_double
917 extern DOUBLEST extract_floating PARAMS ((void *, int));
919 extern void store_floating PARAMS ((void *, int, DOUBLEST));
921 /* On some machines there are bits in addresses which are not really
922 part of the address, but are used by the kernel, the hardware, etc.
923 for special purposes. ADDR_BITS_REMOVE takes out any such bits
924 so we get a "real" address such as one would find in a symbol
925 table. This is used only for addresses of instructions, and even then
926 I'm not sure it's used in all contexts. It exists to deal with there
927 being a few stray bits in the PC which would mislead us, not as some sort
928 of generic thing to handle alignment or segmentation (it's possible it
929 should be in TARGET_READ_PC instead). */
930 #if !defined (ADDR_BITS_REMOVE)
931 #define ADDR_BITS_REMOVE(addr) (addr)
932 #endif /* No ADDR_BITS_REMOVE. */
936 extern CORE_ADDR push_bytes PARAMS ((CORE_ADDR, char *, int));
938 extern CORE_ADDR push_word PARAMS ((CORE_ADDR, unsigned LONGEST));
940 /* Some parts of gdb might be considered optional, in the sense that they
941 are not essential for being able to build a working, usable debugger
942 for a specific environment. For example, the maintenance commands
943 are there for the benefit of gdb maintainers. As another example,
944 some environments really don't need gdb's that are able to read N
945 different object file formats. In order to make it possible (but
946 not necessarily recommended) to build "stripped down" versions of
947 gdb, the following defines control selective compilation of those
948 parts of gdb which can be safely left out when necessary. Note that
949 the default is to include everything. */
951 #ifndef MAINTENANCE_CMDS
952 #define MAINTENANCE_CMDS 1
955 #ifdef MAINTENANCE_CMDS
959 #include "dis-asm.h" /* Get defs for disassemble_info */
961 extern int dis_asm_read_memory PARAMS ((bfd_vma memaddr, bfd_byte *myaddr,
962 int len, disassemble_info *info));
964 extern void dis_asm_memory_error PARAMS ((int status, bfd_vma memaddr,
965 disassemble_info *info));
967 extern void dis_asm_print_address PARAMS ((bfd_vma addr,
968 disassemble_info *info));
970 extern int (*tm_print_insn) PARAMS ((bfd_vma, disassemble_info*));
972 /* Hooks for alternate command interfaces. */
975 struct target_waitstatus;
976 struct cmd_list_element;
979 extern void (*init_ui_hook) PARAMS ((void));
980 extern void (*command_loop_hook) PARAMS ((void));
981 extern void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer,
983 extern void (*print_frame_info_listing_hook) PARAMS ((struct symtab *s,
984 int line, int stopline,
986 extern int (*query_hook) PARAMS (());
987 extern void (*flush_hook) PARAMS ((FILE *stream));
988 extern void (*create_breakpoint_hook) PARAMS ((struct breakpoint *b));
989 extern void (*delete_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
990 extern void (*modify_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
991 extern void (*target_output_hook) PARAMS ((char *));
992 extern void (*interactive_hook) PARAMS ((void));
993 extern void (*registers_changed_hook) PARAMS ((void));
995 extern int (*target_wait_hook) PARAMS ((int pid,
996 struct target_waitstatus *status));
998 extern void (*call_command_hook) PARAMS ((struct cmd_list_element *c,
999 char *cmd, int from_tty));
1001 extern NORETURN void (*error_hook) PARAMS (()) ATTR_NORETURN;
1005 /* Inhibit window interface if non-zero. */
1007 extern int use_windows;
1009 /* Symbolic definitions of filename-related things. */
1010 /* FIXME, this doesn't work very well if host and executable
1011 filesystems conventions are different. */
1013 #ifndef DIRNAME_SEPARATOR
1014 #define DIRNAME_SEPARATOR ':'
1018 #if defined(__GO32__)||defined(__WIN32__)
1019 #define SLASH_P(X) ((X)=='\\')
1021 #define SLASH_P(X) ((X)=='/')
1026 #if defined(__GO32__)||defined(__WIN32__)
1027 #define SLASH_CHAR '\\'
1029 #define SLASH_CHAR '/'
1033 #ifndef SLASH_STRING
1034 #if defined(__GO32__)||defined(__WIN32__)
1035 #define SLASH_STRING "\\"
1037 #define SLASH_STRING "/"
1042 #define ROOTED_P(X) (SLASH_P((X)[0]))
1045 #endif /* #ifndef DEFS_H */