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 */
100 #define 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_chill, /* Chill */
138 language_fortran, /* Fortran */
139 language_m2, /* Modula-2 */
140 language_asm, /* Assembly language */
141 language_scm /* Scheme / Guile */
144 /* the cleanup list records things that have to be undone
145 if an error happens (descriptors to be closed, memory to be freed, etc.)
146 Each link in the chain records a function to call and an
149 Use make_cleanup to add an element to the cleanup chain.
150 Use do_cleanups to do all cleanup actions back to a given
151 point in the chain. Use discard_cleanups to remove cleanups
152 from the chain back to a given point, not doing them. */
156 struct cleanup *next;
157 void (*function) PARAMS ((PTR));
162 /* The ability to declare that a function never returns is useful, but
163 not really required to compile GDB successfully, so the NORETURN and
164 ATTR_NORETURN macros normally expand into nothing. */
166 /* If compiling with older versions of GCC, a function may be declared
167 "volatile" to indicate that it does not return. */
170 # if defined(__GNUC__) \
171 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
172 # define NORETURN volatile
174 # define NORETURN /* nothing */
178 /* GCC 2.5 and later versions define a function attribute "noreturn",
179 which is the preferred way to declare that a function never returns.
180 However GCC 2.7 appears to be the first version in which this fully
181 works everywhere we use it. */
183 #ifndef ATTR_NORETURN
184 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 7
185 # define ATTR_NORETURN __attribute__ ((noreturn))
187 # define ATTR_NORETURN /* nothing */
192 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 4 && defined (__ANSI_PROTOTYPES)
193 # define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
195 # define ATTR_FORMAT(type, x, y) /* nothing */
199 /* Needed for various prototypes */
206 /* From blockframe.c */
208 extern int inside_entry_func PARAMS ((CORE_ADDR));
210 extern int inside_entry_file PARAMS ((CORE_ADDR addr));
212 extern int inside_main_func PARAMS ((CORE_ADDR pc));
214 /* From ch-lang.c, for the moment. (FIXME) */
216 extern char *chill_demangle PARAMS ((const char *));
220 extern void notice_quit PARAMS ((void));
222 extern int strcmp_iw PARAMS ((const char *, const char *));
224 extern char *safe_strerror PARAMS ((int));
226 extern char *safe_strsignal PARAMS ((int));
228 extern void init_malloc PARAMS ((void *));
230 extern void request_quit PARAMS ((int));
232 extern void do_cleanups PARAMS ((struct cleanup *));
234 extern void discard_cleanups PARAMS ((struct cleanup *));
236 /* The bare make_cleanup function is one of those rare beasts that
237 takes almost any type of function as the first arg and anything that
238 will fit in a "void *" as the second arg.
240 Should be, once all calls and called-functions are cleaned up:
241 extern struct cleanup *
242 make_cleanup PARAMS ((void (*function) (void *), void *));
244 Until then, lint and/or various type-checking compiler options will
245 complain about make_cleanup calls. It'd be wrong to just cast things,
246 since the type actually passed when the function is called would be
249 extern struct cleanup *make_cleanup ();
251 extern struct cleanup *save_cleanups PARAMS ((void));
253 extern void restore_cleanups PARAMS ((struct cleanup *));
255 extern void free_current_contents PARAMS ((char **));
257 extern void null_cleanup PARAMS ((PTR));
259 extern int myread PARAMS ((int, char *, int));
261 extern int query PARAMS((char *, ...))
262 ATTR_FORMAT(printf, 1, 2);
264 /* From demangle.c */
266 extern void set_demangling_style PARAMS ((char *));
269 /* Annotation stuff. */
271 extern int annotation_level; /* in stack.c */
273 extern void begin_line PARAMS ((void));
275 extern void wrap_here PARAMS ((char *));
277 extern void reinitialize_more_filter PARAMS ((void));
279 typedef FILE GDB_FILE;
280 #define gdb_stdout stdout
281 #define gdb_stderr stderr
283 extern void gdb_flush PARAMS ((GDB_FILE *));
285 extern GDB_FILE *gdb_fopen PARAMS ((char * name, char * mode));
287 extern void fputs_filtered PARAMS ((const char *, GDB_FILE *));
289 extern void fputs_unfiltered PARAMS ((const char *, GDB_FILE *));
291 extern int fputc_unfiltered PARAMS ((int c, GDB_FILE *));
293 extern int putchar_unfiltered PARAMS ((int c));
295 extern void puts_filtered PARAMS ((const char *));
297 extern void puts_unfiltered PARAMS ((const char *));
299 extern void vprintf_filtered PARAMS ((const char *, va_list))
300 ATTR_FORMAT(printf, 1, 0);
302 extern void vfprintf_filtered PARAMS ((FILE *, const char *, va_list))
303 ATTR_FORMAT(printf, 2, 0);
305 extern void fprintf_filtered PARAMS ((FILE *, const char *, ...))
306 ATTR_FORMAT(printf, 2, 3);
308 extern void fprintfi_filtered PARAMS ((int, FILE *, const char *, ...))
309 ATTR_FORMAT(printf, 3, 4);
311 extern void printf_filtered PARAMS ((const char *, ...))
312 ATTR_FORMAT(printf, 1, 2);
314 extern void printfi_filtered PARAMS ((int, const char *, ...))
315 ATTR_FORMAT(printf, 2, 3);
317 extern void vprintf_unfiltered PARAMS ((const char *, va_list))
318 ATTR_FORMAT(printf, 1, 0);
320 extern void vfprintf_unfiltered PARAMS ((FILE *, const char *, va_list))
321 ATTR_FORMAT(printf, 2, 0);
323 extern void fprintf_unfiltered PARAMS ((FILE *, const char *, ...))
324 ATTR_FORMAT(printf, 2, 3);
326 extern void printf_unfiltered PARAMS ((const char *, ...))
327 ATTR_FORMAT(printf, 1, 2);
329 extern void print_spaces PARAMS ((int, GDB_FILE *));
331 extern void print_spaces_filtered PARAMS ((int, GDB_FILE *));
333 extern char *n_spaces PARAMS ((int));
335 extern void gdb_printchar PARAMS ((int, GDB_FILE *, int));
337 extern void gdb_print_address PARAMS ((void *, GDB_FILE *));
339 typedef bfd_vma t_addr;
340 typedef bfd_vma t_reg;
341 extern char* paddr PARAMS ((t_addr addr));
343 extern char* preg PARAMS ((t_reg reg));
345 extern void fprintf_symbol_filtered PARAMS ((GDB_FILE *, char *,
346 enum language, int));
348 extern void perror_with_name PARAMS ((char *));
350 extern void print_sys_errmsg PARAMS ((char *, int));
352 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
353 "const char *" in unistd.h, so we can't declare the argument
356 extern char *re_comp PARAMS ((const char *));
360 extern void symbol_file_command PARAMS ((char *, int));
364 extern char *skip_quoted PARAMS ((char *));
366 extern char *gdb_readline PARAMS ((char *));
368 extern char *command_line_input PARAMS ((char *, int, char *));
370 extern void print_prompt PARAMS ((void));
372 extern int input_from_terminal_p PARAMS ((void));
374 extern int info_verbose;
376 /* From printcmd.c */
378 extern void set_next_address PARAMS ((CORE_ADDR));
380 extern void print_address_symbolic PARAMS ((CORE_ADDR, GDB_FILE *, int,
383 extern void print_address_numeric PARAMS ((CORE_ADDR, int, GDB_FILE *));
385 extern void print_address PARAMS ((CORE_ADDR, GDB_FILE *));
389 extern int openp PARAMS ((char *, int, char *, int, int, char **));
391 extern void mod_path PARAMS ((char *, char **));
393 extern void directory_command PARAMS ((char *, int));
395 extern void init_source_path PARAMS ((void));
397 extern char *symtab_to_filename PARAMS ((struct symtab *));
401 extern int read_relative_register_raw_bytes PARAMS ((int, char *));
403 /* From readline (but not in any readline .h files). */
405 extern char *tilde_expand PARAMS ((char *));
407 /* Control types for commands */
409 enum misc_command_type
417 enum command_control_type
427 /* Structure for saved commands lines
428 (for breakpoints, defined commands, etc). */
432 struct command_line *next;
434 enum command_control_type control_type;
436 struct command_line **body_list;
439 extern struct command_line *read_command_lines PARAMS ((char *, int));
441 extern void free_command_lines PARAMS ((struct command_line **));
443 /* String containing the current directory (what getwd would return). */
445 extern char *current_directory;
447 /* Default radixes for input and output. Only some values supported. */
448 extern unsigned input_radix;
449 extern unsigned output_radix;
451 /* Possibilities for prettyprint parameters to routines which print
452 things. Like enum language, this should be in value.h, but needs
453 to be here for the same reason. FIXME: If we can eliminate this
454 as an arg to LA_VAL_PRINT, then we can probably move it back to
459 Val_no_prettyprint = 0,
461 /* Use the default setting which the user has specified. */
466 /* Host machine definition. This will be a symlink to one of the
467 xm-*.h files, built by the `configure' script. */
471 /* Native machine support. This will be a symlink to one of the
472 nm-*.h files, built by the `configure' script. */
476 /* Target machine definition. This will be a symlink to one of the
477 tm-*.h files, built by the `configure' script. */
481 /* If the xm.h file did not define the mode string used to open the
482 files, assume that binary files are opened the same way as text
485 #include "fopen-same.h"
488 /* Microsoft C can't deal with const pointers */
493 #define CONST_PTR const
497 * Allow things in gdb to be declared "volatile". If compiling ANSI, it
498 * just works. If compiling with gcc but non-ansi, redefine to __volatile__.
499 * If non-ansi, non-gcc, then eliminate "volatile" entirely, making those
500 * objects be read-write rather than read-only.
506 # define volatile __volatile__
508 # define volatile /*nothing*/
511 #endif /* volatile */
513 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
514 FIXME: Assumes 2's complement arithmetic */
516 #if !defined (UINT_MAX)
517 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
520 #if !defined (INT_MAX)
521 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
524 #if !defined (INT_MIN)
525 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
528 #if !defined (ULONG_MAX)
529 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
532 #if !defined (LONG_MAX)
533 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
538 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
540 #define LONGEST BFD_HOST_64_BIT
544 /* LONGEST should not be a typedef, because "unsigned LONGEST" needs to work.
545 CC_HAS_LONG_LONG is defined if the host compiler supports "long long" */
548 # ifdef CC_HAS_LONG_LONG
549 # define LONGEST long long
551 # define LONGEST long
555 #endif /* No BFD64 */
557 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
558 arguments to a function, number in a value history, register number, etc.)
559 where the value must not be larger than can fit in an int. */
561 extern int longest_to_int PARAMS ((LONGEST));
563 /* Assorted functions we can declare, now that const and volatile are
566 extern char *savestring PARAMS ((const char *, int));
568 extern char *msavestring PARAMS ((void *, const char *, int));
570 extern char *strsave PARAMS ((const char *));
572 extern char *mstrsave PARAMS ((void *, const char *));
574 #ifdef _MSC_VER /* FIXME; was long, but this causes compile errors in msvc if already defined */
575 extern PTR xmmalloc PARAMS ((PTR, size_t));
577 extern PTR xmrealloc PARAMS ((PTR, PTR, size_t));
579 extern PTR xmmalloc PARAMS ((PTR, long));
581 extern PTR xmrealloc PARAMS ((PTR, PTR, long));
584 extern int parse_escape PARAMS ((char **));
586 extern char *reg_names[];
588 /* Message to be printed before the error message, when an error occurs. */
590 extern char *error_pre_print;
592 /* Message to be printed before the error message, when an error occurs. */
594 extern char *quit_pre_print;
596 /* Message to be printed before the warning message, when a warning occurs. */
598 extern char *warning_pre_print;
600 extern NORETURN void error PARAMS((char *, ...)) ATTR_NORETURN;
602 extern void error_begin PARAMS ((void));
604 extern NORETURN void fatal PARAMS((char *, ...)) ATTR_NORETURN;
606 extern NORETURN void nomem PARAMS ((long)) ATTR_NORETURN;
608 /* Reasons for calling return_to_top_level. */
610 /* User interrupt. */
613 /* Any other error. */
617 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
618 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
619 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
620 typedef int return_mask;
623 return_to_top_level PARAMS ((enum return_reason)) ATTR_NORETURN;
626 catch_errors PARAMS ((int (*) (char *), void *, char *, return_mask));
628 extern void warning_begin PARAMS ((void));
630 extern void warning PARAMS ((char *, ...))
631 ATTR_FORMAT(printf, 1, 2);
633 /* Global functions from other, non-gdb GNU thingies.
634 Libiberty thingies are no longer declared here. We include libiberty.h
637 #ifndef GETENV_PROVIDED
638 extern char *getenv PARAMS ((const char *));
641 /* From other system libraries */
648 #if defined(_MSC_VER) && !defined(__cplusplus)
649 /* msvc defines these in stdlib.h for c code */
656 #define min(a, b) ((a) < (b) ? (a) : (b))
659 #define max(a, b) ((a) > (b) ? (a) : (b))
663 /* We take the address of fclose later, but some stdio's forget
664 to declare this. We can't always declare it since there's
665 no way to declare the parameters without upsetting some compiler
668 #ifndef FCLOSE_PROVIDED
669 extern int fclose PARAMS ((FILE *));
673 extern double atof PARAMS ((const char *)); /* X3.159-1989 4.10.1.1 */
676 #ifndef MALLOC_INCOMPATIBLE
678 #ifdef NEED_DECLARATION_MALLOC
679 extern PTR malloc ();
682 #ifdef NEED_DECLARATION_REALLOC
683 extern PTR realloc ();
686 #ifdef NEED_DECLARATION_FREE
690 #endif /* MALLOC_INCOMPATIBLE */
692 /* Various possibilities for alloca. */
695 # define alloca __builtin_alloca
696 # else /* Not GNU C */
698 # include <alloca.h> /* NOTE: Doesn't declare alloca() */
701 /* We need to be careful not to declare this in a way which conflicts with
702 bison. Bison never declares it as char *, but under various circumstances
703 (like __hpux) we need to use void *. */
704 # if defined (__STDC__) || defined (__hpux)
705 extern void *alloca ();
706 # else /* Don't use void *. */
707 extern char *alloca ();
708 # endif /* Don't use void *. */
709 # endif /* Not GNU C */
710 #endif /* alloca not defined */
712 /* HOST_BYTE_ORDER must be defined to one of these. */
718 #if !defined (BIG_ENDIAN)
719 #define BIG_ENDIAN 4321
722 #if !defined (LITTLE_ENDIAN)
723 #define LITTLE_ENDIAN 1234
726 /* Target-system-dependent parameters for GDB. */
728 #ifdef TARGET_BYTE_ORDER_SELECTABLE
729 /* The target endianness is selectable at runtime. Define
730 TARGET_BYTE_ORDER to be a variable. The user can use the `set
731 endian' command to change it. */
732 #undef TARGET_BYTE_ORDER
733 #define TARGET_BYTE_ORDER target_byte_order
734 extern int target_byte_order;
737 extern void set_endian_from_file PARAMS ((bfd *));
739 /* Number of bits in a char or unsigned char for the target machine.
740 Just like CHAR_BIT in <limits.h> but describes the target machine. */
741 #if !defined (TARGET_CHAR_BIT)
742 #define TARGET_CHAR_BIT 8
745 /* Number of bits in a short or unsigned short for the target machine. */
746 #if !defined (TARGET_SHORT_BIT)
747 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
750 /* Number of bits in an int or unsigned int for the target machine. */
751 #if !defined (TARGET_INT_BIT)
752 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
755 /* Number of bits in a long or unsigned long for the target machine. */
756 #if !defined (TARGET_LONG_BIT)
757 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
760 /* Number of bits in a long long or unsigned long long for the target machine. */
761 #if !defined (TARGET_LONG_LONG_BIT)
762 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
765 /* Number of bits in a float for the target machine. */
766 #if !defined (TARGET_FLOAT_BIT)
767 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
770 /* Number of bits in a double for the target machine. */
771 #if !defined (TARGET_DOUBLE_BIT)
772 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
775 /* Number of bits in a long double for the target machine. */
776 #if !defined (TARGET_LONG_DOUBLE_BIT)
777 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
780 /* Number of bits in a pointer for the target machine */
781 #if !defined (TARGET_PTR_BIT)
782 #define TARGET_PTR_BIT TARGET_INT_BIT
785 /* If we picked up a copy of CHAR_BIT from a configuration file
786 (which may get it by including <limits.h>) then use it to set
787 the number of bits in a host char. If not, use the same size
790 #if defined (CHAR_BIT)
791 #define HOST_CHAR_BIT CHAR_BIT
793 #define HOST_CHAR_BIT TARGET_CHAR_BIT
796 /* The bit byte-order has to do just with numbering of bits in
797 debugging symbols and such. Conceptually, it's quite separate
798 from byte/word byte order. */
800 #if !defined (BITS_BIG_ENDIAN)
801 #ifndef TARGET_BYTE_ORDER_SELECTABLE
803 #if TARGET_BYTE_ORDER == BIG_ENDIAN
804 #define BITS_BIG_ENDIAN 1
805 #endif /* Big endian. */
807 #if TARGET_BYTE_ORDER == LITTLE_ENDIAN
808 #define BITS_BIG_ENDIAN 0
809 #endif /* Little endian. */
811 #else /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
813 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
815 #endif /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
816 #endif /* BITS_BIG_ENDIAN not defined. */
820 extern LONGEST extract_signed_integer PARAMS ((void *, int));
822 extern unsigned LONGEST extract_unsigned_integer PARAMS ((void *, int));
824 extern int extract_long_unsigned_integer PARAMS ((void *, int, LONGEST *));
826 extern CORE_ADDR extract_address PARAMS ((void *, int));
828 extern void store_signed_integer PARAMS ((void *, int, LONGEST));
830 extern void store_unsigned_integer PARAMS ((void *, int, unsigned LONGEST));
832 extern void store_address PARAMS ((void *, int, CORE_ADDR));
834 /* Setup definitions for host and target floating point formats. We need to
835 consider the format for `float', `double', and `long double' for both target
836 and host. We need to do this so that we know what kind of conversions need
837 to be done when converting target numbers to and from the hosts DOUBLEST
840 /* This is used to indicate that we don't know the format of the floating point
841 number. Typically, this is useful for native ports, where the actual format
842 is irrelevant, since no conversions will be taking place. */
844 extern const struct floatformat floatformat_unknown;
846 #if HOST_BYTE_ORDER == BIG_ENDIAN
847 # ifndef HOST_FLOAT_FORMAT
848 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
850 # ifndef HOST_DOUBLE_FORMAT
851 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
853 #else /* LITTLE_ENDIAN */
854 # ifndef HOST_FLOAT_FORMAT
855 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
857 # ifndef HOST_DOUBLE_FORMAT
858 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
862 #ifndef HOST_LONG_DOUBLE_FORMAT
863 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
866 #ifndef TARGET_BYTE_ORDER_SELECTABLE
867 # if TARGET_BYTE_ORDER == BIG_ENDIAN
868 # ifndef TARGET_FLOAT_FORMAT
869 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_big
871 # ifndef TARGET_DOUBLE_FORMAT
872 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_big
874 # else /* LITTLE_ENDIAN */
875 # ifndef TARGET_FLOAT_FORMAT
876 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_little
878 # ifndef TARGET_DOUBLE_FORMAT
879 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_little
882 #else /* TARGET_BYTE_ORDER_SELECTABLE */
883 # ifndef TARGET_FLOAT_FORMAT
884 # define TARGET_FLOAT_FORMAT (target_byte_order == BIG_ENDIAN \
885 ? &floatformat_ieee_single_big \
886 : &floatformat_ieee_single_little)
888 # ifndef TARGET_DOUBLE_FORMAT
889 # define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
890 ? &floatformat_ieee_double_big \
891 : &floatformat_ieee_double_little)
895 #ifndef TARGET_LONG_DOUBLE_FORMAT
896 # define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
899 /* Use `long double' if the host compiler supports it. (Note that this is not
900 necessarily any longer than `double'. On SunOS/gcc, it's the same as
901 double.) This is necessary because GDB internally converts all floating
902 point values to the widest type supported by the host.
904 There are problems however, when the target `long double' is longer than the
905 host's `long double'. In general, we'll probably reduce the precision of
906 any such values and print a warning. */
908 #ifdef HAVE_LONG_DOUBLE
909 typedef long double DOUBLEST;
911 typedef double DOUBLEST;
914 extern void floatformat_to_doublest PARAMS ((const struct floatformat *,
915 char *, DOUBLEST *));
916 extern void floatformat_from_doublest PARAMS ((const struct floatformat *,
917 DOUBLEST *, char *));
918 extern DOUBLEST extract_floating PARAMS ((void *, int));
920 extern void store_floating PARAMS ((void *, int, DOUBLEST));
922 /* On some machines there are bits in addresses which are not really
923 part of the address, but are used by the kernel, the hardware, etc.
924 for special purposes. ADDR_BITS_REMOVE takes out any such bits
925 so we get a "real" address such as one would find in a symbol
926 table. This is used only for addresses of instructions, and even then
927 I'm not sure it's used in all contexts. It exists to deal with there
928 being a few stray bits in the PC which would mislead us, not as some sort
929 of generic thing to handle alignment or segmentation (it's possible it
930 should be in TARGET_READ_PC instead). */
931 #if !defined (ADDR_BITS_REMOVE)
932 #define ADDR_BITS_REMOVE(addr) (addr)
933 #endif /* No ADDR_BITS_REMOVE. */
937 extern CORE_ADDR push_bytes PARAMS ((CORE_ADDR, char *, int));
939 extern CORE_ADDR push_word PARAMS ((CORE_ADDR, unsigned LONGEST));
941 /* Some parts of gdb might be considered optional, in the sense that they
942 are not essential for being able to build a working, usable debugger
943 for a specific environment. For example, the maintenance commands
944 are there for the benefit of gdb maintainers. As another example,
945 some environments really don't need gdb's that are able to read N
946 different object file formats. In order to make it possible (but
947 not necessarily recommended) to build "stripped down" versions of
948 gdb, the following defines control selective compilation of those
949 parts of gdb which can be safely left out when necessary. Note that
950 the default is to include everything. */
952 #ifndef MAINTENANCE_CMDS
953 #define MAINTENANCE_CMDS 1
956 #ifdef MAINTENANCE_CMDS
960 #include "dis-asm.h" /* Get defs for disassemble_info */
962 extern int dis_asm_read_memory PARAMS ((bfd_vma memaddr, bfd_byte *myaddr,
963 int len, disassemble_info *info));
965 extern void dis_asm_memory_error PARAMS ((int status, bfd_vma memaddr,
966 disassemble_info *info));
968 extern void dis_asm_print_address PARAMS ((bfd_vma addr,
969 disassemble_info *info));
971 extern int (*tm_print_insn) PARAMS ((bfd_vma, disassemble_info*));
972 extern disassemble_info tm_print_insn_info;
974 /* Hooks for alternate command interfaces. */
977 struct target_waitstatus;
978 struct cmd_list_element;
981 extern void (*init_ui_hook) PARAMS ((void));
982 extern void (*command_loop_hook) PARAMS ((void));
983 extern void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer,
985 extern void (*print_frame_info_listing_hook) PARAMS ((struct symtab *s,
986 int line, int stopline,
988 extern int (*query_hook) PARAMS ((const char *, va_list));
989 extern void (*flush_hook) PARAMS ((FILE *stream));
990 extern void (*create_breakpoint_hook) PARAMS ((struct breakpoint *b));
991 extern void (*delete_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
992 extern void (*modify_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
993 extern void (*target_output_hook) PARAMS ((char *));
994 extern void (*interactive_hook) PARAMS ((void));
995 extern void (*registers_changed_hook) PARAMS ((void));
996 extern void (*readline_begin_hook) PARAMS ((char *, ...));
997 extern char * (*readline_hook) PARAMS ((char *));
998 extern void (*readline_end_hook) PARAMS ((void));
1000 extern int (*target_wait_hook) PARAMS ((int pid,
1001 struct target_waitstatus *status));
1003 extern void (*call_command_hook) PARAMS ((struct cmd_list_element *c,
1004 char *cmd, int from_tty));
1006 extern NORETURN void (*error_hook) PARAMS ((void)) ATTR_NORETURN;
1010 /* Inhibit window interface if non-zero. */
1012 extern int use_windows;
1014 /* Symbolic definitions of filename-related things. */
1015 /* FIXME, this doesn't work very well if host and executable
1016 filesystems conventions are different. */
1018 #ifndef DIRNAME_SEPARATOR
1019 #define DIRNAME_SEPARATOR ':'
1023 #if defined(__GO32__)||defined(_WIN32)
1024 #define SLASH_P(X) ((X)=='\\')
1026 #define SLASH_P(X) ((X)=='/')
1031 #if defined(__GO32__)||defined(_WIN32)
1032 #define SLASH_CHAR '\\'
1034 #define SLASH_CHAR '/'
1038 #ifndef SLASH_STRING
1039 #if defined(__GO32__)||defined(_WIN32)
1040 #define SLASH_STRING "\\"
1042 #define SLASH_STRING "/"
1047 #define ROOTED_P(X) (SLASH_P((X)[0]))
1050 #endif /* #ifndef DEFS_H */