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 #define PRIVATE_XMALLOC 1 /* Suppress libiberty decls for xmalloc/xrealloc */
49 #include "libiberty.h"
51 /* libiberty.h can't declare this one, but evidently we can. */
52 extern char *strsignal PARAMS ((int));
60 /* For BFD64 and bfd_vma. */
63 /* An address in the program being debugged. Host byte order. Rather
64 than duplicate all the logic in BFD which figures out what type
65 this is (long, long long, etc.) and whether it needs to be 64
66 bits (the host/target interactions are subtle), we just use
69 typedef bfd_vma CORE_ADDR;
71 #define min(a, b) ((a) < (b) ? (a) : (b))
72 #define max(a, b) ((a) > (b) ? (a) : (b))
74 /* Gdb does *lots* of string compares. Use macros to speed them up by
75 avoiding function calls if the first characters are not the same. */
77 #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b))
78 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
79 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
81 /* The character GNU C++ uses to build identifiers that must be unique from
82 the program's identifiers (such as $this and $$vptr). */
83 #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
85 /* Check if a character is one of the commonly used C++ marker characters. */
86 extern int is_cplus_marker PARAMS ((int));
89 extern int immediate_quit;
90 extern int sevenbit_strings;
92 extern void quit PARAMS ((void));
95 if (quit_flag) quit (); \
96 if (interactive_hook) interactive_hook (); \
100 /* Command classes are top-level categories into which commands are broken
101 down for "help" purposes.
102 Notes on classes: class_alias is for alias commands which are not
103 abbreviations of the original command. class-pseudo is for commands
104 which are not really commands nor help topics ("stop"). */
108 /* Special args to help_list */
109 all_classes = -2, all_commands = -1,
110 /* Classes of commands */
111 no_class = -1, class_run = 0, class_vars, class_stack,
112 class_files, class_support, class_info, class_breakpoint,
113 class_alias, class_obscure, class_user, class_maintenance,
117 /* Languages represented in the symbol table and elsewhere.
118 This should probably be in language.h, but since enum's can't
119 be forward declared to satisfy opaque references before their
120 actual definition, needs to be here. */
124 language_unknown, /* Language not known */
125 language_auto, /* Placeholder for automatic setting */
127 language_cplus, /* C++ */
128 language_chill, /* Chill */
129 language_fortran, /* Fortran */
130 language_m2, /* Modula-2 */
131 language_asm, /* Assembly language */
132 language_scm /* Scheme / Guile */
135 /* the cleanup list records things that have to be undone
136 if an error happens (descriptors to be closed, memory to be freed, etc.)
137 Each link in the chain records a function to call and an
140 Use make_cleanup to add an element to the cleanup chain.
141 Use do_cleanups to do all cleanup actions back to a given
142 point in the chain. Use discard_cleanups to remove cleanups
143 from the chain back to a given point, not doing them. */
147 struct cleanup *next;
148 void (*function) PARAMS ((PTR));
153 /* The ability to declare that a function never returns is useful, but
154 not really required to compile GDB successfully, so the NORETURN and
155 ATTR_NORETURN macros normally expand into nothing. */
157 /* If compiling with older versions of GCC, a function may be declared
158 "volatile" to indicate that it does not return. */
161 # if defined(__GNUC__) \
162 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
163 # define NORETURN volatile
165 # define NORETURN /* nothing */
169 /* GCC 2.5 and later versions define a function attribute "noreturn",
170 which is the preferred way to declare that a function never returns.
171 However GCC 2.7 appears to be the first version in which this fully
172 works everywhere we use it. */
174 #ifndef ATTR_NORETURN
175 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 7
176 # define ATTR_NORETURN __attribute__ ((noreturn))
178 # define ATTR_NORETURN /* nothing */
183 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 4 && defined (__ANSI_PROTOTYPES)
184 # define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
186 # define ATTR_FORMAT(type, x, y) /* nothing */
190 /* Needed for various prototypes */
197 /* From blockframe.c */
199 extern int inside_entry_func PARAMS ((CORE_ADDR));
201 extern int inside_entry_file PARAMS ((CORE_ADDR addr));
203 extern int inside_main_func PARAMS ((CORE_ADDR pc));
205 /* From ch-lang.c, for the moment. (FIXME) */
207 extern char *chill_demangle PARAMS ((const char *));
211 extern PTR xmalloc PARAMS ((long));
213 extern PTR xrealloc PARAMS ((PTR, long));
215 extern void notice_quit PARAMS ((void));
217 extern int strcmp_iw PARAMS ((const char *, const char *));
219 extern char *safe_strerror PARAMS ((int));
221 extern char *safe_strsignal PARAMS ((int));
223 extern void init_malloc PARAMS ((void *));
225 extern void request_quit PARAMS ((int));
227 extern void do_cleanups PARAMS ((struct cleanup *));
229 extern void discard_cleanups PARAMS ((struct cleanup *));
231 /* The bare make_cleanup function is one of those rare beasts that
232 takes almost any type of function as the first arg and anything that
233 will fit in a "void *" as the second arg.
235 Should be, once all calls and called-functions are cleaned up:
236 extern struct cleanup *
237 make_cleanup PARAMS ((void (*function) (void *), void *));
239 Until then, lint and/or various type-checking compiler options will
240 complain about make_cleanup calls. It'd be wrong to just cast things,
241 since the type actually passed when the function is called would be
244 extern struct cleanup *make_cleanup ();
246 extern struct cleanup *save_cleanups PARAMS ((void));
248 extern void restore_cleanups PARAMS ((struct cleanup *));
250 extern void free_current_contents PARAMS ((char **));
252 extern void null_cleanup PARAMS ((PTR));
254 extern int myread PARAMS ((int, char *, int));
256 extern int query PARAMS((char *, ...))
257 ATTR_FORMAT(printf, 1, 2);
259 /* From demangle.c */
261 extern void set_demangling_style PARAMS ((char *));
264 /* Annotation stuff. */
266 extern int annotation_level; /* in stack.c */
268 extern void begin_line PARAMS ((void));
270 extern void wrap_here PARAMS ((char *));
272 extern void reinitialize_more_filter PARAMS ((void));
274 typedef FILE GDB_FILE;
275 #define gdb_stdout stdout
276 #define gdb_stderr stderr
278 extern void gdb_flush PARAMS ((GDB_FILE *));
280 extern GDB_FILE *gdb_fopen PARAMS ((char * name, char * mode));
282 extern void fputs_filtered PARAMS ((const char *, GDB_FILE *));
284 extern void fputs_unfiltered PARAMS ((const char *, GDB_FILE *));
286 extern int fputc_unfiltered PARAMS ((int c, GDB_FILE *));
288 extern int putchar_unfiltered PARAMS ((int c));
290 extern void puts_filtered PARAMS ((const char *));
292 extern void puts_unfiltered PARAMS ((const char *));
294 extern void vprintf_filtered PARAMS ((const char *, va_list))
295 ATTR_FORMAT(printf, 1, 0);
297 extern void vfprintf_filtered PARAMS ((FILE *, const char *, va_list))
298 ATTR_FORMAT(printf, 2, 0);
300 extern void fprintf_filtered PARAMS ((FILE *, const char *, ...))
301 ATTR_FORMAT(printf, 2, 3);
303 extern void fprintfi_filtered PARAMS ((int, FILE *, const char *, ...))
304 ATTR_FORMAT(printf, 3, 4);
306 extern void printf_filtered PARAMS ((const char *, ...))
307 ATTR_FORMAT(printf, 1, 2);
309 extern void printfi_filtered PARAMS ((int, const char *, ...))
310 ATTR_FORMAT(printf, 2, 3);
312 extern void vprintf_unfiltered PARAMS ((const char *, va_list))
313 ATTR_FORMAT(printf, 1, 0);
315 extern void vfprintf_unfiltered PARAMS ((FILE *, const char *, va_list))
316 ATTR_FORMAT(printf, 2, 0);
318 extern void fprintf_unfiltered PARAMS ((FILE *, const char *, ...))
319 ATTR_FORMAT(printf, 2, 3);
321 extern void printf_unfiltered PARAMS ((const char *, ...))
322 ATTR_FORMAT(printf, 1, 2);
324 extern void print_spaces PARAMS ((int, GDB_FILE *));
326 extern void print_spaces_filtered PARAMS ((int, GDB_FILE *));
328 extern char *n_spaces PARAMS ((int));
330 extern void gdb_printchar PARAMS ((int, GDB_FILE *, int));
332 extern void gdb_print_address PARAMS ((void *, GDB_FILE *));
334 extern void fprintf_symbol_filtered PARAMS ((GDB_FILE *, char *,
335 enum language, int));
337 extern void perror_with_name PARAMS ((char *));
339 extern void print_sys_errmsg PARAMS ((char *, int));
341 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
342 "const char *" in unistd.h, so we can't declare the argument
345 extern char *re_comp PARAMS ((const char *));
349 extern void symbol_file_command PARAMS ((char *, int));
353 extern char *skip_quoted PARAMS ((char *));
355 extern char *gdb_readline PARAMS ((char *));
357 extern char *command_line_input PARAMS ((char *, int, char *));
359 extern void print_prompt PARAMS ((void));
361 extern int input_from_terminal_p PARAMS ((void));
363 extern int info_verbose;
365 /* From printcmd.c */
367 extern void set_next_address PARAMS ((CORE_ADDR));
369 extern void print_address_symbolic PARAMS ((CORE_ADDR, GDB_FILE *, int,
372 extern void print_address_numeric PARAMS ((CORE_ADDR, int, GDB_FILE *));
374 extern void print_address PARAMS ((CORE_ADDR, GDB_FILE *));
378 extern int openp PARAMS ((char *, int, char *, int, int, char **));
380 extern void mod_path PARAMS ((char *, char **));
382 extern void directory_command PARAMS ((char *, int));
384 extern void init_source_path PARAMS ((void));
386 extern char *symtab_to_filename PARAMS ((struct symtab *));
390 extern int read_relative_register_raw_bytes PARAMS ((int, char *));
392 /* From readline (but not in any readline .h files). */
394 extern char *tilde_expand PARAMS ((char *));
396 /* Control types for commands */
398 enum misc_command_type
406 enum command_control_type
416 /* Structure for saved commands lines
417 (for breakpoints, defined commands, etc). */
421 struct command_line *next;
423 enum command_control_type control_type;
425 struct command_line **body_list;
428 extern struct command_line *read_command_lines PARAMS ((char *, int));
430 extern void free_command_lines PARAMS ((struct command_line **));
432 /* String containing the current directory (what getwd would return). */
434 extern char *current_directory;
436 /* Default radixes for input and output. Only some values supported. */
437 extern unsigned input_radix;
438 extern unsigned output_radix;
440 /* Possibilities for prettyprint parameters to routines which print
441 things. Like enum language, this should be in value.h, but needs
442 to be here for the same reason. FIXME: If we can eliminate this
443 as an arg to LA_VAL_PRINT, then we can probably move it back to
448 Val_no_prettyprint = 0,
450 /* Use the default setting which the user has specified. */
455 /* Host machine definition. This will be a symlink to one of the
456 xm-*.h files, built by the `configure' script. */
460 /* Native machine support. This will be a symlink to one of the
461 nm-*.h files, built by the `configure' script. */
465 /* Target machine definition. This will be a symlink to one of the
466 tm-*.h files, built by the `configure' script. */
470 /* If the xm.h file did not define the mode string used to open the
471 files, assume that binary files are opened the same way as text
474 #include "fopen-same.h"
478 * Allow things in gdb to be declared "const". If compiling ANSI, it
479 * just works. If compiling with gcc but non-ansi, redefine to __const__.
480 * If non-ansi, non-gcc, then eliminate "const" entirely, making those
481 * objects be read-write rather than read-only.
487 # define const __const__
489 # define const /*nothing*/
497 # define volatile __volatile__
499 # define volatile /*nothing*/
502 #endif /* volatile */
504 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
505 FIXME: Assumes 2's complement arithmetic */
507 #if !defined (UINT_MAX)
508 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
511 #if !defined (INT_MAX)
512 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
515 #if !defined (INT_MIN)
516 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
519 #if !defined (ULONG_MAX)
520 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
523 #if !defined (LONG_MAX)
524 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
529 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
531 #define LONGEST BFD_HOST_64_BIT
535 /* LONGEST should not be a typedef, because "unsigned LONGEST" needs to work.
536 CC_HAS_LONG_LONG is defined if the host compiler supports "long long" */
539 # ifdef CC_HAS_LONG_LONG
540 # define LONGEST long long
542 # define LONGEST long
546 #endif /* No BFD64 */
548 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
549 arguments to a function, number in a value history, register number, etc.)
550 where the value must not be larger than can fit in an int. */
552 extern int longest_to_int PARAMS ((LONGEST));
554 /* Assorted functions we can declare, now that const and volatile are
557 extern char *savestring PARAMS ((const char *, int));
559 extern char *msavestring PARAMS ((void *, const char *, int));
561 extern char *strsave PARAMS ((const char *));
563 extern char *mstrsave PARAMS ((void *, const char *));
565 extern PTR xmmalloc PARAMS ((PTR, long));
567 extern PTR xmrealloc PARAMS ((PTR, PTR, long));
569 extern int parse_escape PARAMS ((char **));
571 extern char *reg_names[];
573 /* Message to be printed before the error message, when an error occurs. */
575 extern char *error_pre_print;
577 /* Message to be printed before the error message, when an error occurs. */
579 extern char *quit_pre_print;
581 /* Message to be printed before the warning message, when a warning occurs. */
583 extern char *warning_pre_print;
585 extern NORETURN void error PARAMS((char *, ...)) ATTR_NORETURN;
587 extern void error_begin PARAMS ((void));
589 extern NORETURN void fatal PARAMS((char *, ...)) ATTR_NORETURN;
591 extern NORETURN void nomem PARAMS ((long)) ATTR_NORETURN;
593 /* Reasons for calling return_to_top_level. */
595 /* User interrupt. */
598 /* Any other error. */
602 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
603 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
604 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
605 typedef int return_mask;
608 return_to_top_level PARAMS ((enum return_reason)) ATTR_NORETURN;
611 catch_errors PARAMS ((int (*) (char *), void *, char *, return_mask));
613 extern void warning_begin PARAMS ((void));
615 extern void warning PARAMS ((char *, ...))
616 ATTR_FORMAT(printf, 1, 2);
618 /* Global functions from other, non-gdb GNU thingies.
619 Libiberty thingies are no longer declared here. We include libiberty.h
622 #ifndef GETENV_PROVIDED
623 extern char *getenv PARAMS ((const char *));
626 /* 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 extern PTR malloc ();
651 extern PTR realloc ();
655 #endif /* MALLOC_INCOMPATIBLE */
657 /* Various possibilities for alloca. */
660 # define alloca __builtin_alloca
661 # else /* Not GNU C */
663 # include <alloca.h> /* NOTE: Doesn't declare alloca() */
666 /* We need to be careful not to declare this in a way which conflicts with
667 bison. Bison never declares it as char *, but under various circumstances
668 (like __hpux) we need to use void *. */
669 # if defined (__STDC__) || defined (__hpux)
670 extern void *alloca ();
671 # else /* Don't use void *. */
672 extern char *alloca ();
673 # endif /* Don't use void *. */
674 # endif /* Not GNU C */
675 #endif /* alloca not defined */
677 /* HOST_BYTE_ORDER must be defined to one of these. */
683 #if !defined (BIG_ENDIAN)
684 #define BIG_ENDIAN 4321
687 #if !defined (LITTLE_ENDIAN)
688 #define LITTLE_ENDIAN 1234
691 /* Target-system-dependent parameters for GDB. */
693 #ifdef TARGET_BYTE_ORDER_SELECTABLE
694 /* The target endianness is selectable at runtime. Define
695 TARGET_BYTE_ORDER to be a variable. The user can use the `set
696 endian' command to change it. */
697 #undef TARGET_BYTE_ORDER
698 #define TARGET_BYTE_ORDER target_byte_order
699 extern int target_byte_order;
702 extern void set_endian_from_file PARAMS ((bfd *));
704 /* Number of bits in a char or unsigned char for the target machine.
705 Just like CHAR_BIT in <limits.h> but describes the target machine. */
706 #if !defined (TARGET_CHAR_BIT)
707 #define TARGET_CHAR_BIT 8
710 /* Number of bits in a short or unsigned short for the target machine. */
711 #if !defined (TARGET_SHORT_BIT)
712 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
715 /* Number of bits in an int or unsigned int for the target machine. */
716 #if !defined (TARGET_INT_BIT)
717 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
720 /* Number of bits in a long or unsigned long for the target machine. */
721 #if !defined (TARGET_LONG_BIT)
722 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
725 /* Number of bits in a long long or unsigned long long for the target machine. */
726 #if !defined (TARGET_LONG_LONG_BIT)
727 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
730 /* Number of bits in a float for the target machine. */
731 #if !defined (TARGET_FLOAT_BIT)
732 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
735 /* Number of bits in a double for the target machine. */
736 #if !defined (TARGET_DOUBLE_BIT)
737 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
740 /* Number of bits in a long double for the target machine. */
741 #if !defined (TARGET_LONG_DOUBLE_BIT)
742 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
745 /* Number of bits in a pointer for the target machine */
746 #if !defined (TARGET_PTR_BIT)
747 #define TARGET_PTR_BIT TARGET_INT_BIT
750 /* If we picked up a copy of CHAR_BIT from a configuration file
751 (which may get it by including <limits.h>) then use it to set
752 the number of bits in a host char. If not, use the same size
755 #if defined (CHAR_BIT)
756 #define HOST_CHAR_BIT CHAR_BIT
758 #define HOST_CHAR_BIT TARGET_CHAR_BIT
761 /* The bit byte-order has to do just with numbering of bits in
762 debugging symbols and such. Conceptually, it's quite separate
763 from byte/word byte order. */
765 #if !defined (BITS_BIG_ENDIAN)
766 #ifndef TARGET_BYTE_ORDER_SELECTABLE
768 #if TARGET_BYTE_ORDER == BIG_ENDIAN
769 #define BITS_BIG_ENDIAN 1
770 #endif /* Big endian. */
772 #if TARGET_BYTE_ORDER == LITTLE_ENDIAN
773 #define BITS_BIG_ENDIAN 0
774 #endif /* Little endian. */
776 #else /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
778 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
780 #endif /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
781 #endif /* BITS_BIG_ENDIAN not defined. */
785 extern LONGEST extract_signed_integer PARAMS ((void *, int));
787 extern unsigned LONGEST extract_unsigned_integer PARAMS ((void *, int));
789 extern int extract_long_unsigned_integer PARAMS ((void *, int, LONGEST *));
791 extern CORE_ADDR extract_address PARAMS ((void *, int));
793 extern void store_signed_integer PARAMS ((void *, int, LONGEST));
795 extern void store_unsigned_integer PARAMS ((void *, int, unsigned LONGEST));
797 extern void store_address PARAMS ((void *, int, CORE_ADDR));
799 /* Setup definitions for host and target floating point formats. We need to
800 consider the format for `float', `double', and `long double' for both target
801 and host. We need to do this so that we know what kind of conversions need
802 to be done when converting target numbers to and from the hosts DOUBLEST
805 /* This is used to indicate that we don't know the format of the floating point
806 number. Typically, this is useful for native ports, where the actual format
807 is irrelevant, since no conversions will be taking place. */
809 extern const struct floatformat floatformat_unknown;
811 #if HOST_BYTE_ORDER == BIG_ENDIAN
812 # ifndef HOST_FLOAT_FORMAT
813 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
815 # ifndef HOST_DOUBLE_FORMAT
816 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
818 #else /* LITTLE_ENDIAN */
819 # ifndef HOST_FLOAT_FORMAT
820 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
822 # ifndef HOST_DOUBLE_FORMAT
823 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
827 #ifndef HOST_LONG_DOUBLE_FORMAT
828 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
831 #ifndef TARGET_BYTE_ORDER_SELECTABLE
832 # if TARGET_BYTE_ORDER == BIG_ENDIAN
833 # ifndef TARGET_FLOAT_FORMAT
834 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_big
836 # ifndef TARGET_DOUBLE_FORMAT
837 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_big
839 # else /* LITTLE_ENDIAN */
840 # ifndef TARGET_FLOAT_FORMAT
841 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_little
843 # ifndef TARGET_DOUBLE_FORMAT
844 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_little
847 #else /* TARGET_BYTE_ORDER_SELECTABLE */
848 # ifndef TARGET_FLOAT_FORMAT
849 # define TARGET_FLOAT_FORMAT (target_byte_order == BIG_ENDIAN \
850 ? &floatformat_ieee_single_big \
851 : &floatformat_ieee_single_little)
853 # ifndef TARGET_DOUBLE_FORMAT
854 # define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
855 ? &floatformat_ieee_double_big \
856 : &floatformat_ieee_double_little)
860 #ifndef TARGET_LONG_DOUBLE_FORMAT
861 # define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
864 /* Use `long double' if the host compiler supports it. (Note that this is not
865 necessarily any longer than `double'. On SunOS/gcc, it's the same as
866 double.) This is necessary because GDB internally converts all floating
867 point values to the widest type supported by the host.
869 There are problems however, when the target `long double' is longer than the
870 host's `long double'. In general, we'll probably reduce the precision of
871 any such values and print a warning. */
873 #ifdef HAVE_LONG_DOUBLE
874 typedef long double DOUBLEST;
876 typedef double DOUBLEST;
879 extern void floatformat_to_doublest PARAMS ((const struct floatformat *,
880 char *, DOUBLEST *));
881 extern void floatformat_from_doublest PARAMS ((const struct floatformat *,
882 DOUBLEST *, char *));
883 extern DOUBLEST extract_floating PARAMS ((void *, int));
885 extern void store_floating PARAMS ((void *, int, DOUBLEST));
887 /* On some machines there are bits in addresses which are not really
888 part of the address, but are used by the kernel, the hardware, etc.
889 for special purposes. ADDR_BITS_REMOVE takes out any such bits
890 so we get a "real" address such as one would find in a symbol
891 table. This is used only for addresses of instructions, and even then
892 I'm not sure it's used in all contexts. It exists to deal with there
893 being a few stray bits in the PC which would mislead us, not as some sort
894 of generic thing to handle alignment or segmentation (it's possible it
895 should be in TARGET_READ_PC instead). */
896 #if !defined (ADDR_BITS_REMOVE)
897 #define ADDR_BITS_REMOVE(addr) (addr)
898 #endif /* No ADDR_BITS_REMOVE. */
902 extern CORE_ADDR push_bytes PARAMS ((CORE_ADDR, char *, int));
904 extern CORE_ADDR push_word PARAMS ((CORE_ADDR, unsigned LONGEST));
906 /* Some parts of gdb might be considered optional, in the sense that they
907 are not essential for being able to build a working, usable debugger
908 for a specific environment. For example, the maintenance commands
909 are there for the benefit of gdb maintainers. As another example,
910 some environments really don't need gdb's that are able to read N
911 different object file formats. In order to make it possible (but
912 not necessarily recommended) to build "stripped down" versions of
913 gdb, the following defines control selective compilation of those
914 parts of gdb which can be safely left out when necessary. Note that
915 the default is to include everything. */
917 #ifndef MAINTENANCE_CMDS
918 #define MAINTENANCE_CMDS 1
921 #ifdef MAINTENANCE_CMDS
925 #include "dis-asm.h" /* Get defs for disassemble_info */
927 extern int dis_asm_read_memory PARAMS ((bfd_vma memaddr, bfd_byte *myaddr,
928 int len, disassemble_info *info));
930 extern void dis_asm_memory_error PARAMS ((int status, bfd_vma memaddr,
931 disassemble_info *info));
933 extern void dis_asm_print_address PARAMS ((bfd_vma addr,
934 disassemble_info *info));
936 extern int (*tm_print_insn) PARAMS ((bfd_vma, disassemble_info*));
937 extern disassemble_info tm_print_insn_info;
939 /* Hooks for alternate command interfaces. */
942 struct target_waitstatus;
943 struct cmd_list_element;
946 extern void (*init_ui_hook) PARAMS ((void));
947 extern void (*command_loop_hook) PARAMS ((void));
948 extern void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer,
950 extern void (*print_frame_info_listing_hook) PARAMS ((struct symtab *s,
951 int line, int stopline,
953 extern int (*query_hook) PARAMS ((const char *, va_list));
954 extern void (*flush_hook) PARAMS ((FILE *stream));
955 extern void (*create_breakpoint_hook) PARAMS ((struct breakpoint *b));
956 extern void (*delete_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
957 extern void (*modify_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
958 extern void (*target_output_hook) PARAMS ((char *));
959 extern void (*interactive_hook) PARAMS ((void));
960 extern void (*registers_changed_hook) PARAMS ((void));
961 extern void (*readline_begin_hook) PARAMS ((char *, ...));
962 extern char * (*readline_hook) PARAMS ((char *));
963 extern void (*readline_end_hook) PARAMS ((void));
965 extern int (*target_wait_hook) PARAMS ((int pid,
966 struct target_waitstatus *status));
968 extern void (*call_command_hook) PARAMS ((struct cmd_list_element *c,
969 char *cmd, int from_tty));
971 extern NORETURN void (*error_hook) PARAMS ((void)) ATTR_NORETURN;
975 /* Inhibit window interface if non-zero. */
977 extern int use_windows;
979 /* Symbolic definitions of filename-related things. */
980 /* FIXME, this doesn't work very well if host and executable
981 filesystems conventions are different. */
983 #ifndef DIRNAME_SEPARATOR
984 #define DIRNAME_SEPARATOR ':'
988 #if defined(__GO32__)||defined(__WIN32__)
989 #define SLASH_P(X) ((X)=='\\')
991 #define SLASH_P(X) ((X)=='/')
996 #if defined(__GO32__)||defined(__WIN32__)
997 #define SLASH_CHAR '\\'
999 #define SLASH_CHAR '/'
1003 #ifndef SLASH_STRING
1004 #if defined(__GO32__)||defined(__WIN32__)
1005 #define SLASH_STRING "\\"
1007 #define SLASH_STRING "/"
1012 #define ROOTED_P(X) (SLASH_P((X)[0]))
1015 #endif /* #ifndef DEFS_H */