1 /* Basic, host-specific, and target-specific definitions for GDB.
2 Copyright (C) 1986, 89, 91, 92, 93, 94, 95, 96, 1998
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 */
31 # include <sys/types.h> /* for size_t */
34 /* Just in case they're not defined in stdio.h. */
43 /* First include ansidecl.h so we can use the various macro definitions
44 here and in all subsequent file inclusions. */
48 #ifdef ANSI_PROTOTYPES
54 #include "libiberty.h"
56 /* libiberty.h can't declare this one, but evidently we can. */
57 extern char *strsignal
PARAMS ((int));
65 /* For BFD64 and bfd_vma. */
68 /* An address in the program being debugged. Host byte order. Rather
69 than duplicate all the logic in BFD which figures out what type
70 this is (long, long long, etc.) and whether it needs to be 64
71 bits (the host/target interactions are subtle), we just use
74 typedef bfd_vma CORE_ADDR
;
77 #define min(a, b) ((a) < (b) ? (a) : (b))
80 #define max(a, b) ((a) > (b) ? (a) : (b))
83 /* Gdb does *lots* of string compares. Use macros to speed them up by
84 avoiding function calls if the first characters are not the same. */
86 #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b))
87 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
88 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
90 /* The character GNU C++ uses to build identifiers that must be unique from
91 the program's identifiers (such as $this and $$vptr). */
92 #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
94 /* Check if a character is one of the commonly used C++ marker characters. */
95 extern int is_cplus_marker
PARAMS ((int));
98 extern int immediate_quit
;
99 extern int sevenbit_strings
;
101 extern void quit
PARAMS ((void));
104 /* do twice to force compiler warning */
105 #define QUIT_FIXME "FIXME"
106 #define QUIT_FIXME "ignoring redefinition of QUIT"
109 if (quit_flag) quit (); \
110 if (interactive_hook) interactive_hook (); \
115 /* Command classes are top-level categories into which commands are broken
116 down for "help" purposes.
117 Notes on classes: class_alias is for alias commands which are not
118 abbreviations of the original command. class-pseudo is for commands
119 which are not really commands nor help topics ("stop"). */
123 /* Special args to help_list */
124 all_classes
= -2, all_commands
= -1,
125 /* Classes of commands */
126 no_class
= -1, class_run
= 0, class_vars
, class_stack
,
127 class_files
, class_support
, class_info
, class_breakpoint
, class_trace
,
128 class_alias
, class_obscure
, class_user
, class_maintenance
,
132 /* Languages represented in the symbol table and elsewhere.
133 This should probably be in language.h, but since enum's can't
134 be forward declared to satisfy opaque references before their
135 actual definition, needs to be here. */
139 language_unknown
, /* Language not known */
140 language_auto
, /* Placeholder for automatic setting */
142 language_cplus
, /* C++ */
143 /* start-sanitize-java */
144 language_java
, /* Java */
145 /* end-sanitize-java */
146 language_chill
, /* Chill */
147 language_fortran
, /* Fortran */
148 language_m2
, /* Modula-2 */
149 language_asm
, /* Assembly language */
150 language_scm
/* Scheme / Guile */
153 /* the cleanup list records things that have to be undone
154 if an error happens (descriptors to be closed, memory to be freed, etc.)
155 Each link in the chain records a function to call and an
158 Use make_cleanup to add an element to the cleanup chain.
159 Use do_cleanups to do all cleanup actions back to a given
160 point in the chain. Use discard_cleanups to remove cleanups
161 from the chain back to a given point, not doing them. */
165 struct cleanup
*next
;
166 void (*function
) PARAMS ((PTR
));
171 /* The ability to declare that a function never returns is useful, but
172 not really required to compile GDB successfully, so the NORETURN and
173 ATTR_NORETURN macros normally expand into nothing. */
175 /* If compiling with older versions of GCC, a function may be declared
176 "volatile" to indicate that it does not return. */
179 # if defined(__GNUC__) \
180 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
181 # define NORETURN volatile
183 # define NORETURN /* nothing */
187 /* GCC 2.5 and later versions define a function attribute "noreturn",
188 which is the preferred way to declare that a function never returns.
189 However GCC 2.7 appears to be the first version in which this fully
190 works everywhere we use it. */
192 #ifndef ATTR_NORETURN
193 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 7
194 # define ATTR_NORETURN __attribute__ ((noreturn))
196 # define ATTR_NORETURN /* nothing */
201 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 4 && defined (__ANSI_PROTOTYPES)
202 # define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
204 # define ATTR_FORMAT(type, x, y) /* nothing */
208 /* Needed for various prototypes */
215 /* From blockframe.c */
217 extern int inside_entry_func
PARAMS ((CORE_ADDR
));
219 extern int inside_entry_file
PARAMS ((CORE_ADDR addr
));
221 extern int inside_main_func
PARAMS ((CORE_ADDR pc
));
223 /* From ch-lang.c, for the moment. (FIXME) */
225 extern char *chill_demangle
PARAMS ((const char *));
229 extern void notice_quit
PARAMS ((void));
231 extern int strcmp_iw
PARAMS ((const char *, const char *));
233 extern char *safe_strerror
PARAMS ((int));
235 extern char *safe_strsignal
PARAMS ((int));
237 extern void init_malloc
PARAMS ((void *));
239 extern void request_quit
PARAMS ((int));
241 extern void do_cleanups
PARAMS ((struct cleanup
*));
242 extern void do_final_cleanups
PARAMS ((struct cleanup
*));
243 extern void do_my_cleanups
PARAMS ((struct cleanup
**, struct cleanup
*));
244 extern void do_run_cleanups
PARAMS ((struct cleanup
*));
246 extern void discard_cleanups
PARAMS ((struct cleanup
*));
247 extern void discard_final_cleanups
PARAMS ((struct cleanup
*));
248 extern void discard_my_cleanups
PARAMS ((struct cleanup
**, struct cleanup
*));
250 typedef void (*make_cleanup_func
) (void *);
252 extern struct cleanup
*make_cleanup
PARAMS ((make_cleanup_func
, void *));
254 extern struct cleanup
*make_final_cleanup
PARAMS ((make_cleanup_func
, void *));
256 extern struct cleanup
*make_my_cleanup
PARAMS ((struct cleanup
**,
257 make_cleanup_func
, void *));
259 extern struct cleanup
*make_run_cleanup
PARAMS ((make_cleanup_func
, void *));
261 extern struct cleanup
*save_cleanups
PARAMS ((void));
262 extern struct cleanup
*save_final_cleanups
PARAMS ((void));
263 extern struct cleanup
*save_my_cleanups
PARAMS ((struct cleanup
**));
265 extern void restore_cleanups
PARAMS ((struct cleanup
*));
266 extern void restore_final_cleanups
PARAMS ((struct cleanup
*));
267 extern void restore_my_cleanups
PARAMS ((struct cleanup
**, struct cleanup
*));
269 extern void free_current_contents
PARAMS ((char **));
271 extern void null_cleanup
PARAMS ((PTR
));
273 extern int myread
PARAMS ((int, char *, int));
275 extern int query
PARAMS((char *, ...))
276 ATTR_FORMAT(printf
, 1, 2);
278 #if !defined (USE_MMALLOC)
279 extern PTR mmalloc
PARAMS ((PTR
, size_t));
280 extern PTR mrealloc
PARAMS ((PTR
, PTR
, size_t));
281 extern void mfree
PARAMS ((PTR
, PTR
));
284 /* From demangle.c */
286 extern void set_demangling_style
PARAMS ((char *));
289 /* Annotation stuff. */
291 extern int annotation_level
; /* in stack.c */
293 extern void begin_line
PARAMS ((void));
295 extern void wrap_here
PARAMS ((char *));
297 extern void reinitialize_more_filter
PARAMS ((void));
299 typedef FILE GDB_FILE
;
300 #define gdb_stdout stdout
301 #define gdb_stderr stderr
303 extern void gdb_flush
PARAMS ((GDB_FILE
*));
305 extern GDB_FILE
*gdb_fopen
PARAMS ((char * name
, char * mode
));
307 extern void fputs_filtered
PARAMS ((const char *, GDB_FILE
*));
309 extern void fputs_unfiltered
PARAMS ((const char *, GDB_FILE
*));
311 extern int fputc_filtered
PARAMS ((int c
, GDB_FILE
*));
313 extern int fputc_unfiltered
PARAMS ((int c
, GDB_FILE
*));
315 extern int putchar_unfiltered
PARAMS ((int c
));
317 extern void puts_filtered
PARAMS ((const char *));
319 extern void puts_unfiltered
PARAMS ((const char *));
321 extern void puts_debug
PARAMS ((char *prefix
, char *string
, char *suffix
));
323 extern void vprintf_filtered
PARAMS ((const char *, va_list))
324 ATTR_FORMAT(printf
, 1, 0);
326 extern void vfprintf_filtered
PARAMS ((FILE *, const char *, va_list))
327 ATTR_FORMAT(printf
, 2, 0);
329 extern void fprintf_filtered
PARAMS ((FILE *, const char *, ...))
330 ATTR_FORMAT(printf
, 2, 3);
332 extern void fprintfi_filtered
PARAMS ((int, FILE *, const char *, ...))
333 ATTR_FORMAT(printf
, 3, 4);
335 extern void printf_filtered
PARAMS ((const char *, ...))
336 ATTR_FORMAT(printf
, 1, 2);
338 extern void printfi_filtered
PARAMS ((int, const char *, ...))
339 ATTR_FORMAT(printf
, 2, 3);
341 extern void vprintf_unfiltered
PARAMS ((const char *, va_list))
342 ATTR_FORMAT(printf
, 1, 0);
344 extern void vfprintf_unfiltered
PARAMS ((FILE *, const char *, va_list))
345 ATTR_FORMAT(printf
, 2, 0);
347 extern void fprintf_unfiltered
PARAMS ((FILE *, const char *, ...))
348 ATTR_FORMAT(printf
, 2, 3);
350 extern void printf_unfiltered
PARAMS ((const char *, ...))
351 ATTR_FORMAT(printf
, 1, 2);
353 extern void print_spaces
PARAMS ((int, GDB_FILE
*));
355 extern void print_spaces_filtered
PARAMS ((int, GDB_FILE
*));
357 extern char *n_spaces
PARAMS ((int));
359 extern void gdb_printchar
PARAMS ((int, GDB_FILE
*, int));
361 extern void gdb_print_address
PARAMS ((void *, GDB_FILE
*));
363 typedef bfd_vma t_addr
;
364 typedef bfd_vma t_reg
;
365 extern char* paddr
PARAMS ((t_addr addr
));
367 extern char* preg
PARAMS ((t_reg reg
));
369 extern char* paddr_nz
PARAMS ((t_addr addr
));
371 extern char* preg_nz
PARAMS ((t_reg reg
));
373 extern void fprintf_symbol_filtered
PARAMS ((GDB_FILE
*, char *,
374 enum language
, int));
376 extern NORETURN
void perror_with_name
PARAMS ((char *)) ATTR_NORETURN
;
378 extern void print_sys_errmsg
PARAMS ((char *, int));
380 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
381 "const char *" in unistd.h, so we can't declare the argument
384 extern char *re_comp
PARAMS ((const char *));
388 extern void symbol_file_command
PARAMS ((char *, int));
392 extern char *skip_quoted
PARAMS ((char *));
394 extern char *gdb_readline
PARAMS ((char *));
396 extern char *command_line_input
PARAMS ((char *, int, char *));
398 extern void print_prompt
PARAMS ((void));
400 extern int input_from_terminal_p
PARAMS ((void));
402 extern int info_verbose
;
404 /* From printcmd.c */
406 extern void set_next_address
PARAMS ((CORE_ADDR
));
408 extern void print_address_symbolic
PARAMS ((CORE_ADDR
, GDB_FILE
*, int,
411 extern void print_address_numeric
PARAMS ((CORE_ADDR
, int, GDB_FILE
*));
413 extern void print_address
PARAMS ((CORE_ADDR
, GDB_FILE
*));
417 extern int openp
PARAMS ((char *, int, char *, int, int, char **));
419 extern void mod_path
PARAMS ((char *, char **));
421 extern void directory_command
PARAMS ((char *, int));
423 extern void init_source_path
PARAMS ((void));
425 extern char *symtab_to_filename
PARAMS ((struct symtab
*));
429 extern int read_relative_register_raw_bytes
PARAMS ((int, char *));
431 /* From readline (but not in any readline .h files). */
433 extern char *tilde_expand
PARAMS ((char *));
435 /* Control types for commands */
437 enum misc_command_type
445 enum command_control_type
455 /* Structure for saved commands lines
456 (for breakpoints, defined commands, etc). */
460 struct command_line
*next
;
462 enum command_control_type control_type
;
464 struct command_line
**body_list
;
467 extern struct command_line
*read_command_lines
PARAMS ((char *, int));
469 extern void free_command_lines
PARAMS ((struct command_line
**));
471 /* String containing the current directory (what getwd would return). */
473 extern char *current_directory
;
475 /* Default radixes for input and output. Only some values supported. */
476 extern unsigned input_radix
;
477 extern unsigned output_radix
;
479 /* Possibilities for prettyprint parameters to routines which print
480 things. Like enum language, this should be in value.h, but needs
481 to be here for the same reason. FIXME: If we can eliminate this
482 as an arg to LA_VAL_PRINT, then we can probably move it back to
487 Val_no_prettyprint
= 0,
489 /* Use the default setting which the user has specified. */
494 /* Host machine definition. This will be a symlink to one of the
495 xm-*.h files, built by the `configure' script. */
499 /* Native machine support. This will be a symlink to one of the
500 nm-*.h files, built by the `configure' script. */
504 /* Target machine definition. This will be a symlink to one of the
505 tm-*.h files, built by the `configure' script. */
509 /* If the xm.h file did not define the mode string used to open the
510 files, assume that binary files are opened the same way as text
513 #include "fopen-same.h"
516 /* Microsoft C can't deal with const pointers */
521 #define CONST_PTR const
525 * Allow things in gdb to be declared "volatile". If compiling ANSI, it
526 * just works. If compiling with gcc but non-ansi, redefine to __volatile__.
527 * If non-ansi, non-gcc, then eliminate "volatile" entirely, making those
528 * objects be read-write rather than read-only.
534 # define volatile __volatile__
536 # define volatile /*nothing*/
539 #endif /* volatile */
541 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
542 FIXME: Assumes 2's complement arithmetic */
544 #if !defined (UINT_MAX)
545 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
548 #if !defined (INT_MAX)
549 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
552 #if !defined (INT_MIN)
553 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
556 #if !defined (ULONG_MAX)
557 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
560 #if !defined (LONG_MAX)
561 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
568 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
570 #define LONGEST BFD_HOST_64_BIT
571 #define ULONGEST BFD_HOST_U_64_BIT
575 # ifdef CC_HAS_LONG_LONG
576 # define LONGEST long long
577 # define ULONGEST unsigned long long
579 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
580 (e.g. i386-windows) so try it. */
581 # ifdef BFD_HOST_64_BIT
582 # define LONGEST BFD_HOST_64_BIT
583 # define ULONGEST BFD_HOST_U_64_BIT
585 # define LONGEST long
586 # define ULONGEST unsigned long
590 #endif /* No BFD64 */
592 #endif /* ! LONGEST */
594 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
595 arguments to a function, number in a value history, register number, etc.)
596 where the value must not be larger than can fit in an int. */
598 extern int longest_to_int
PARAMS ((LONGEST
));
600 /* Assorted functions we can declare, now that const and volatile are
603 extern char *savestring
PARAMS ((const char *, int));
605 extern char *msavestring
PARAMS ((void *, const char *, int));
607 extern char *strsave
PARAMS ((const char *));
609 extern char *mstrsave
PARAMS ((void *, const char *));
611 #ifdef _MSC_VER /* FIXME; was long, but this causes compile errors in msvc if already defined */
612 extern PTR xmmalloc
PARAMS ((PTR
, size_t));
614 extern PTR xmrealloc
PARAMS ((PTR
, PTR
, size_t));
616 extern PTR xmmalloc
PARAMS ((PTR
, long));
618 extern PTR xmrealloc
PARAMS ((PTR
, PTR
, long));
621 extern int parse_escape
PARAMS ((char **));
623 extern char *reg_names
[];
625 /* Message to be printed before the error message, when an error occurs. */
627 extern char *error_pre_print
;
629 /* Message to be printed before the error message, when an error occurs. */
631 extern char *quit_pre_print
;
633 /* Message to be printed before the warning message, when a warning occurs. */
635 extern char *warning_pre_print
;
637 extern NORETURN
void error
PARAMS((const char *, ...)) ATTR_NORETURN
;
639 extern void error_begin
PARAMS ((void));
641 extern NORETURN
void fatal
PARAMS((char *, ...)) ATTR_NORETURN
;
643 extern NORETURN
void nomem
PARAMS ((long)) ATTR_NORETURN
;
645 /* Reasons for calling return_to_top_level. */
647 /* User interrupt. */
650 /* Any other error. */
654 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
655 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
656 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
657 typedef int return_mask
;
660 return_to_top_level
PARAMS ((enum return_reason
)) ATTR_NORETURN
;
663 catch_errors
PARAMS ((int (*) (char *), void *, char *, return_mask
));
665 extern void warning_begin
PARAMS ((void));
667 extern void warning
PARAMS ((const char *, ...))
668 ATTR_FORMAT(printf
, 1, 2);
670 /* Global functions from other, non-gdb GNU thingies.
671 Libiberty thingies are no longer declared here. We include libiberty.h
674 #ifndef GETENV_PROVIDED
675 extern char *getenv
PARAMS ((const char *));
678 /* From other system libraries */
685 #if defined(_MSC_VER) && !defined(__cplusplus)
686 /* msvc defines these in stdlib.h for c code */
693 #define min(a, b) ((a) < (b) ? (a) : (b))
696 #define max(a, b) ((a) > (b) ? (a) : (b))
700 /* We take the address of fclose later, but some stdio's forget
701 to declare this. We can't always declare it since there's
702 no way to declare the parameters without upsetting some compiler
705 #ifndef FCLOSE_PROVIDED
706 extern int fclose
PARAMS ((FILE *));
710 extern double atof
PARAMS ((const char *)); /* X3.159-1989 4.10.1.1 */
713 #ifndef MALLOC_INCOMPATIBLE
715 #ifdef NEED_DECLARATION_MALLOC
716 extern PTR
malloc ();
719 #ifdef NEED_DECLARATION_REALLOC
720 extern PTR
realloc ();
723 #ifdef NEED_DECLARATION_FREE
727 #endif /* MALLOC_INCOMPATIBLE */
729 /* Various possibilities for alloca. */
732 # define alloca __builtin_alloca
733 # else /* Not GNU C */
734 # ifdef HAVE_ALLOCA_H
741 /* We need to be careful not to declare this in a way which conflicts with
742 bison. Bison never declares it as char *, but under various circumstances
743 (like __hpux) we need to use void *. */
744 # if defined (__STDC__) || defined (__hpux)
745 extern void *alloca ();
746 # else /* Don't use void *. */
747 extern char *alloca ();
748 # endif /* Don't use void *. */
749 # endif /* Not _AIX */
750 # endif /* Not HAVE_ALLOCA_H */
751 # endif /* Not GNU C */
752 #endif /* alloca not defined */
754 /* HOST_BYTE_ORDER must be defined to one of these. */
760 #if !defined (BIG_ENDIAN)
761 #define BIG_ENDIAN 4321
764 #if !defined (LITTLE_ENDIAN)
765 #define LITTLE_ENDIAN 1234
768 /* Target-system-dependent parameters for GDB. */
770 #ifdef TARGET_BYTE_ORDER_SELECTABLE
771 /* The target endianness is selectable at runtime. Define
772 TARGET_BYTE_ORDER to be a variable. The user can use the `set
773 endian' command to change it. */
774 #undef TARGET_BYTE_ORDER
775 #define TARGET_BYTE_ORDER target_byte_order
776 extern int target_byte_order
;
777 /* Nonzero when target_byte_order auto-detected */
778 extern int target_byte_order_auto
;
781 extern void set_endian_from_file
PARAMS ((bfd
*));
783 /* The target architecture can be set at run-time. */
784 extern int target_architecture_auto
;
785 extern const bfd_arch_info_type
*target_architecture
;
786 extern void set_architecture_from_file
PARAMS ((bfd
*));
787 /* Notify target of a change to the selected architecture. Zero return
788 status indicates that the target did not like the change. */
789 extern int (*target_architecture_hook
) PARAMS ((const bfd_arch_info_type
*ap
));
790 extern void set_architecture_from_arch_mach
PARAMS ((enum bfd_architecture arch
, unsigned long mach
));
792 /* Number of bits in a char or unsigned char for the target machine.
793 Just like CHAR_BIT in <limits.h> but describes the target machine. */
794 #if !defined (TARGET_CHAR_BIT)
795 #define TARGET_CHAR_BIT 8
798 /* Number of bits in a short or unsigned short for the target machine. */
799 #if !defined (TARGET_SHORT_BIT)
800 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
803 /* Number of bits in an int or unsigned int for the target machine. */
804 #if !defined (TARGET_INT_BIT)
805 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
808 /* Number of bits in a long or unsigned long for the target machine. */
809 #if !defined (TARGET_LONG_BIT)
810 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
813 /* Number of bits in a long long or unsigned long long for the target machine. */
814 #if !defined (TARGET_LONG_LONG_BIT)
815 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
818 /* Number of bits in a float for the target machine. */
819 #if !defined (TARGET_FLOAT_BIT)
820 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
823 /* Number of bits in a double for the target machine. */
824 #if !defined (TARGET_DOUBLE_BIT)
825 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
828 /* Number of bits in a long double for the target machine. */
829 #if !defined (TARGET_LONG_DOUBLE_BIT)
830 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
833 /* Number of bits in a pointer for the target machine */
834 #if !defined (TARGET_PTR_BIT)
835 #define TARGET_PTR_BIT TARGET_INT_BIT
838 /* If we picked up a copy of CHAR_BIT from a configuration file
839 (which may get it by including <limits.h>) then use it to set
840 the number of bits in a host char. If not, use the same size
843 #if defined (CHAR_BIT)
844 #define HOST_CHAR_BIT CHAR_BIT
846 #define HOST_CHAR_BIT TARGET_CHAR_BIT
849 /* The bit byte-order has to do just with numbering of bits in
850 debugging symbols and such. Conceptually, it's quite separate
851 from byte/word byte order. */
853 #if !defined (BITS_BIG_ENDIAN)
854 #ifndef TARGET_BYTE_ORDER_SELECTABLE
856 #if TARGET_BYTE_ORDER == BIG_ENDIAN
857 #define BITS_BIG_ENDIAN 1
858 #endif /* Big endian. */
860 #if TARGET_BYTE_ORDER == LITTLE_ENDIAN
861 #define BITS_BIG_ENDIAN 0
862 #endif /* Little endian. */
864 #else /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
866 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
868 #endif /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
869 #endif /* BITS_BIG_ENDIAN not defined. */
873 extern LONGEST extract_signed_integer
PARAMS ((void *, int));
875 extern ULONGEST extract_unsigned_integer
PARAMS ((void *, int));
877 extern int extract_long_unsigned_integer
PARAMS ((void *, int, LONGEST
*));
879 extern CORE_ADDR extract_address
PARAMS ((void *, int));
881 extern void store_signed_integer
PARAMS ((void *, int, LONGEST
));
883 extern void store_unsigned_integer
PARAMS ((void *, int, ULONGEST
));
885 extern void store_address
PARAMS ((void *, int, CORE_ADDR
));
887 /* Setup definitions for host and target floating point formats. We need to
888 consider the format for `float', `double', and `long double' for both target
889 and host. We need to do this so that we know what kind of conversions need
890 to be done when converting target numbers to and from the hosts DOUBLEST
893 /* This is used to indicate that we don't know the format of the floating point
894 number. Typically, this is useful for native ports, where the actual format
895 is irrelevant, since no conversions will be taking place. */
897 extern const struct floatformat floatformat_unknown
;
899 #if HOST_BYTE_ORDER == BIG_ENDIAN
900 # ifndef HOST_FLOAT_FORMAT
901 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
903 # ifndef HOST_DOUBLE_FORMAT
904 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
906 #else /* LITTLE_ENDIAN */
907 # ifndef HOST_FLOAT_FORMAT
908 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
910 # ifndef HOST_DOUBLE_FORMAT
911 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
915 #ifndef HOST_LONG_DOUBLE_FORMAT
916 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
919 #ifndef TARGET_BYTE_ORDER_SELECTABLE
920 # if TARGET_BYTE_ORDER == BIG_ENDIAN
921 # ifndef TARGET_FLOAT_FORMAT
922 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_big
924 # ifndef TARGET_DOUBLE_FORMAT
925 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_big
927 # else /* LITTLE_ENDIAN */
928 # ifndef TARGET_FLOAT_FORMAT
929 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_little
931 # ifndef TARGET_DOUBLE_FORMAT
932 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_little
935 #else /* TARGET_BYTE_ORDER_SELECTABLE */
936 # ifndef TARGET_FLOAT_FORMAT
937 # define TARGET_FLOAT_FORMAT (target_byte_order == BIG_ENDIAN \
938 ? &floatformat_ieee_single_big \
939 : &floatformat_ieee_single_little)
941 # ifndef TARGET_DOUBLE_FORMAT
942 # define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
943 ? &floatformat_ieee_double_big \
944 : &floatformat_ieee_double_little)
948 #ifndef TARGET_LONG_DOUBLE_FORMAT
949 # define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
952 /* Use `long double' if the host compiler supports it. (Note that this is not
953 necessarily any longer than `double'. On SunOS/gcc, it's the same as
954 double.) This is necessary because GDB internally converts all floating
955 point values to the widest type supported by the host.
957 There are problems however, when the target `long double' is longer than the
958 host's `long double'. In general, we'll probably reduce the precision of
959 any such values and print a warning. */
961 #ifdef HAVE_LONG_DOUBLE
962 typedef long double DOUBLEST
;
964 typedef double DOUBLEST
;
967 extern void floatformat_to_doublest
PARAMS ((const struct floatformat
*,
968 char *, DOUBLEST
*));
969 extern void floatformat_from_doublest
PARAMS ((const struct floatformat
*,
970 DOUBLEST
*, char *));
971 extern DOUBLEST extract_floating
PARAMS ((void *, int));
973 extern void store_floating
PARAMS ((void *, int, DOUBLEST
));
975 /* On some machines there are bits in addresses which are not really
976 part of the address, but are used by the kernel, the hardware, etc.
977 for special purposes. ADDR_BITS_REMOVE takes out any such bits
978 so we get a "real" address such as one would find in a symbol
979 table. This is used only for addresses of instructions, and even then
980 I'm not sure it's used in all contexts. It exists to deal with there
981 being a few stray bits in the PC which would mislead us, not as some sort
982 of generic thing to handle alignment or segmentation (it's possible it
983 should be in TARGET_READ_PC instead). */
984 #if !defined (ADDR_BITS_REMOVE)
985 #define ADDR_BITS_REMOVE(addr) (addr)
986 #endif /* No ADDR_BITS_REMOVE. */
990 extern CORE_ADDR push_bytes
PARAMS ((CORE_ADDR
, char *, int));
992 extern CORE_ADDR push_word
PARAMS ((CORE_ADDR
, ULONGEST
));
994 /* Some parts of gdb might be considered optional, in the sense that they
995 are not essential for being able to build a working, usable debugger
996 for a specific environment. For example, the maintenance commands
997 are there for the benefit of gdb maintainers. As another example,
998 some environments really don't need gdb's that are able to read N
999 different object file formats. In order to make it possible (but
1000 not necessarily recommended) to build "stripped down" versions of
1001 gdb, the following defines control selective compilation of those
1002 parts of gdb which can be safely left out when necessary. Note that
1003 the default is to include everything. */
1005 #ifndef MAINTENANCE_CMDS
1006 #define MAINTENANCE_CMDS 1
1009 #ifdef MAINTENANCE_CMDS
1010 extern int watchdog
;
1013 #include "dis-asm.h" /* Get defs for disassemble_info */
1015 extern int dis_asm_read_memory
PARAMS ((bfd_vma memaddr
, bfd_byte
*myaddr
,
1016 int len
, disassemble_info
*info
));
1018 extern void dis_asm_memory_error
PARAMS ((int status
, bfd_vma memaddr
,
1019 disassemble_info
*info
));
1021 extern void dis_asm_print_address
PARAMS ((bfd_vma addr
,
1022 disassemble_info
*info
));
1024 extern int (*tm_print_insn
) PARAMS ((bfd_vma
, disassemble_info
*));
1025 extern disassemble_info tm_print_insn_info
;
1027 /* Hooks for alternate command interfaces. */
1030 struct target_waitstatus
;
1031 struct cmd_list_element
;
1034 extern void (*init_ui_hook
) PARAMS ((char *argv0
));
1035 extern void (*command_loop_hook
) PARAMS ((void));
1036 extern void (*fputs_unfiltered_hook
) PARAMS ((const char *linebuffer
,
1038 extern void (*print_frame_info_listing_hook
) PARAMS ((struct symtab
*s
,
1039 int line
, int stopline
,
1041 extern int (*query_hook
) PARAMS ((const char *, va_list));
1042 extern void (*warning_hook
) PARAMS ((const char *, va_list));
1043 extern void (*flush_hook
) PARAMS ((FILE *stream
));
1044 extern void (*create_breakpoint_hook
) PARAMS ((struct breakpoint
*b
));
1045 extern void (*delete_breakpoint_hook
) PARAMS ((struct breakpoint
*bpt
));
1046 extern void (*modify_breakpoint_hook
) PARAMS ((struct breakpoint
*bpt
));
1047 extern void (*target_output_hook
) PARAMS ((char *));
1048 extern void (*interactive_hook
) PARAMS ((void));
1049 extern void (*registers_changed_hook
) PARAMS ((void));
1050 extern void (*readline_begin_hook
) PARAMS ((char *, ...));
1051 extern char * (*readline_hook
) PARAMS ((char *));
1052 extern void (*readline_end_hook
) PARAMS ((void));
1053 extern void (*pc_changed_hook
) PARAMS ((void));
1054 extern void (*context_hook
) PARAMS ((int));
1055 extern int (*target_wait_hook
) PARAMS ((int pid
,
1056 struct target_waitstatus
*status
));
1058 extern void (*call_command_hook
) PARAMS ((struct cmd_list_element
*c
,
1059 char *cmd
, int from_tty
));
1061 extern NORETURN
void (*error_hook
) PARAMS ((void)) ATTR_NORETURN
;
1065 /* Inhibit window interface if non-zero. */
1067 extern int use_windows
;
1069 /* Symbolic definitions of filename-related things. */
1070 /* FIXME, this doesn't work very well if host and executable
1071 filesystems conventions are different. */
1073 #ifndef DIRNAME_SEPARATOR
1074 #define DIRNAME_SEPARATOR ':'
1078 #if defined(__GO32__)||defined(_WIN32)
1079 #define SLASH_P(X) ((X)=='\\')
1081 #define SLASH_P(X) ((X)=='/')
1086 #if defined(__GO32__)||defined(_WIN32)
1087 #define SLASH_CHAR '\\'
1089 #define SLASH_CHAR '/'
1093 #ifndef SLASH_STRING
1094 #if defined(__GO32__)||defined(_WIN32)
1095 #define SLASH_STRING "\\"
1097 #define SLASH_STRING "/"
1102 #define ROOTED_P(X) (SLASH_P((X)[0]))
1105 /* On some systems, PIDGET is defined to extract the inferior pid from
1106 an internal pid that has the thread id and pid in seperate bit
1107 fields. If not defined, then just use the entire internal pid as
1111 #define PIDGET(pid) (pid)
1114 /* If under Cygwin, provide backwards compatibility with older
1115 Cygwin compilers that don't define the current cpp define. */
1122 #endif /* #ifndef DEFS_H */