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
) PARAMS ((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 *));
291 typedef int (use_struct_convention_fn
) PARAMS ((int gcc_p
, struct type
*value_type
));
292 extern use_struct_convention_fn generic_use_struct_convention
;
294 typedef unsigned char *(breakpoint_from_pc_fn
) PARAMS ((CORE_ADDR
*pcptr
, int *lenptr
));
298 /* Annotation stuff. */
300 extern int annotation_level
; /* in stack.c */
302 extern void begin_line
PARAMS ((void));
304 extern void wrap_here
PARAMS ((char *));
306 extern void reinitialize_more_filter
PARAMS ((void));
308 typedef FILE GDB_FILE
;
309 #define gdb_stdout stdout
310 #define gdb_stderr stderr
312 extern void gdb_flush
PARAMS ((GDB_FILE
*));
314 extern GDB_FILE
*gdb_fopen
PARAMS ((char * name
, char * mode
));
316 extern void fputs_filtered
PARAMS ((const char *, GDB_FILE
*));
318 extern void fputs_unfiltered
PARAMS ((const char *, GDB_FILE
*));
320 extern int fputc_filtered
PARAMS ((int c
, GDB_FILE
*));
322 extern int fputc_unfiltered
PARAMS ((int c
, GDB_FILE
*));
324 extern int putchar_unfiltered
PARAMS ((int c
));
326 extern void puts_filtered
PARAMS ((const char *));
328 extern void puts_unfiltered
PARAMS ((const char *));
330 extern void puts_debug
PARAMS ((char *prefix
, char *string
, char *suffix
));
332 extern void vprintf_filtered
PARAMS ((const char *, va_list))
333 ATTR_FORMAT(printf
, 1, 0);
335 extern void vfprintf_filtered
PARAMS ((FILE *, const char *, va_list))
336 ATTR_FORMAT(printf
, 2, 0);
338 extern void fprintf_filtered
PARAMS ((FILE *, const char *, ...))
339 ATTR_FORMAT(printf
, 2, 3);
341 extern void fprintfi_filtered
PARAMS ((int, FILE *, const char *, ...))
342 ATTR_FORMAT(printf
, 3, 4);
344 extern void printf_filtered
PARAMS ((const char *, ...))
345 ATTR_FORMAT(printf
, 1, 2);
347 extern void printfi_filtered
PARAMS ((int, const char *, ...))
348 ATTR_FORMAT(printf
, 2, 3);
350 extern void vprintf_unfiltered
PARAMS ((const char *, va_list))
351 ATTR_FORMAT(printf
, 1, 0);
353 extern void vfprintf_unfiltered
PARAMS ((FILE *, const char *, va_list))
354 ATTR_FORMAT(printf
, 2, 0);
356 extern void fprintf_unfiltered
PARAMS ((FILE *, const char *, ...))
357 ATTR_FORMAT(printf
, 2, 3);
359 extern void printf_unfiltered
PARAMS ((const char *, ...))
360 ATTR_FORMAT(printf
, 1, 2);
362 extern void print_spaces
PARAMS ((int, GDB_FILE
*));
364 extern void print_spaces_filtered
PARAMS ((int, GDB_FILE
*));
366 extern char *n_spaces
PARAMS ((int));
368 extern void gdb_printchar
PARAMS ((int, GDB_FILE
*, int));
370 extern void gdb_print_address
PARAMS ((void *, GDB_FILE
*));
372 typedef bfd_vma t_addr
;
373 typedef bfd_vma t_reg
;
374 extern char* paddr
PARAMS ((t_addr addr
));
376 extern char* preg
PARAMS ((t_reg reg
));
378 extern char* paddr_nz
PARAMS ((t_addr addr
));
380 extern char* preg_nz
PARAMS ((t_reg reg
));
382 extern void fprintf_symbol_filtered
PARAMS ((GDB_FILE
*, char *,
383 enum language
, int));
385 extern NORETURN
void perror_with_name
PARAMS ((char *)) ATTR_NORETURN
;
387 extern void print_sys_errmsg
PARAMS ((char *, int));
389 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
390 "const char *" in unistd.h, so we can't declare the argument
393 extern char *re_comp
PARAMS ((const char *));
397 extern void symbol_file_command
PARAMS ((char *, int));
401 extern char *skip_quoted
PARAMS ((char *));
403 extern char *gdb_readline
PARAMS ((char *));
405 extern char *command_line_input
PARAMS ((char *, int, char *));
407 extern void print_prompt
PARAMS ((void));
409 extern int input_from_terminal_p
PARAMS ((void));
411 extern int info_verbose
;
413 /* From printcmd.c */
415 extern void set_next_address
PARAMS ((CORE_ADDR
));
417 extern void print_address_symbolic
PARAMS ((CORE_ADDR
, GDB_FILE
*, int,
420 extern void print_address_numeric
PARAMS ((CORE_ADDR
, int, GDB_FILE
*));
422 extern void print_address
PARAMS ((CORE_ADDR
, GDB_FILE
*));
426 extern int openp
PARAMS ((char *, int, char *, int, int, char **));
428 extern void mod_path
PARAMS ((char *, char **));
430 extern void directory_command
PARAMS ((char *, int));
432 extern void init_source_path
PARAMS ((void));
434 extern char *symtab_to_filename
PARAMS ((struct symtab
*));
438 extern int read_relative_register_raw_bytes
PARAMS ((int, char *));
440 /* From readline (but not in any readline .h files). */
442 extern char *tilde_expand
PARAMS ((char *));
444 /* Control types for commands */
446 enum misc_command_type
454 enum command_control_type
464 /* Structure for saved commands lines
465 (for breakpoints, defined commands, etc). */
469 struct command_line
*next
;
471 enum command_control_type control_type
;
473 struct command_line
**body_list
;
476 extern struct command_line
*read_command_lines
PARAMS ((char *, int));
478 extern void free_command_lines
PARAMS ((struct command_line
**));
480 /* String containing the current directory (what getwd would return). */
482 extern char *current_directory
;
484 /* Default radixes for input and output. Only some values supported. */
485 extern unsigned input_radix
;
486 extern unsigned output_radix
;
488 /* Possibilities for prettyprint parameters to routines which print
489 things. Like enum language, this should be in value.h, but needs
490 to be here for the same reason. FIXME: If we can eliminate this
491 as an arg to LA_VAL_PRINT, then we can probably move it back to
496 Val_no_prettyprint
= 0,
498 /* Use the default setting which the user has specified. */
503 /* Host machine definition. This will be a symlink to one of the
504 xm-*.h files, built by the `configure' script. */
508 /* Native machine support. This will be a symlink to one of the
509 nm-*.h files, built by the `configure' script. */
513 /* Target machine definition. This will be a symlink to one of the
514 tm-*.h files, built by the `configure' script. */
518 /* If the xm.h file did not define the mode string used to open the
519 files, assume that binary files are opened the same way as text
522 #include "fopen-same.h"
525 /* Microsoft C can't deal with const pointers */
530 #define CONST_PTR const
534 * Allow things in gdb to be declared "volatile". If compiling ANSI, it
535 * just works. If compiling with gcc but non-ansi, redefine to __volatile__.
536 * If non-ansi, non-gcc, then eliminate "volatile" entirely, making those
537 * objects be read-write rather than read-only.
543 # define volatile __volatile__
545 # define volatile /*nothing*/
548 #endif /* volatile */
550 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
551 FIXME: Assumes 2's complement arithmetic */
553 #if !defined (UINT_MAX)
554 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
557 #if !defined (INT_MAX)
558 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
561 #if !defined (INT_MIN)
562 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
565 #if !defined (ULONG_MAX)
566 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
569 #if !defined (LONG_MAX)
570 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
577 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
579 #define LONGEST BFD_HOST_64_BIT
580 #define ULONGEST BFD_HOST_U_64_BIT
584 # ifdef CC_HAS_LONG_LONG
585 # define LONGEST long long
586 # define ULONGEST unsigned long long
588 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
589 (e.g. i386-windows) so try it. */
590 # ifdef BFD_HOST_64_BIT
591 # define LONGEST BFD_HOST_64_BIT
592 # define ULONGEST BFD_HOST_U_64_BIT
594 # define LONGEST long
595 # define ULONGEST unsigned long
599 #endif /* No BFD64 */
601 #endif /* ! LONGEST */
603 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
604 arguments to a function, number in a value history, register number, etc.)
605 where the value must not be larger than can fit in an int. */
607 extern int longest_to_int
PARAMS ((LONGEST
));
609 /* Assorted functions we can declare, now that const and volatile are
612 extern char *savestring
PARAMS ((const char *, int));
614 extern char *msavestring
PARAMS ((void *, const char *, int));
616 extern char *strsave
PARAMS ((const char *));
618 extern char *mstrsave
PARAMS ((void *, const char *));
620 #ifdef _MSC_VER /* FIXME; was long, but this causes compile errors in msvc if already defined */
621 extern PTR xmmalloc
PARAMS ((PTR
, size_t));
623 extern PTR xmrealloc
PARAMS ((PTR
, PTR
, size_t));
625 extern PTR xmmalloc
PARAMS ((PTR
, long));
627 extern PTR xmrealloc
PARAMS ((PTR
, PTR
, long));
630 extern int parse_escape
PARAMS ((char **));
632 /* compat - handle old targets that just define REGISTER_NAMES */
633 #ifndef REGISTER_NAME
634 extern char *gdb_register_names
[];
635 #define REGISTER_NAME(i) gdb_register_names[i]
638 /* Message to be printed before the error message, when an error occurs. */
640 extern char *error_pre_print
;
642 /* Message to be printed before the error message, when an error occurs. */
644 extern char *quit_pre_print
;
646 /* Message to be printed before the warning message, when a warning occurs. */
648 extern char *warning_pre_print
;
650 extern NORETURN
void error
PARAMS((const char *, ...)) ATTR_NORETURN
;
652 extern void error_begin
PARAMS ((void));
654 extern NORETURN
void fatal
PARAMS((char *, ...)) ATTR_NORETURN
;
656 extern NORETURN
void nomem
PARAMS ((long)) ATTR_NORETURN
;
658 /* Reasons for calling return_to_top_level. */
660 /* User interrupt. */
663 /* Any other error. */
667 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
668 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
669 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
670 typedef int return_mask
;
673 return_to_top_level
PARAMS ((enum return_reason
)) ATTR_NORETURN
;
676 catch_errors
PARAMS ((int (*) (char *), void *, char *, return_mask
));
678 extern void warning_begin
PARAMS ((void));
680 extern void warning
PARAMS ((const char *, ...))
681 ATTR_FORMAT(printf
, 1, 2);
683 /* Global functions from other, non-gdb GNU thingies.
684 Libiberty thingies are no longer declared here. We include libiberty.h
687 #ifndef GETENV_PROVIDED
688 extern char *getenv
PARAMS ((const char *));
691 /* From other system libraries */
698 #if defined(_MSC_VER) && !defined(__cplusplus)
699 /* msvc defines these in stdlib.h for c code */
706 #define min(a, b) ((a) < (b) ? (a) : (b))
709 #define max(a, b) ((a) > (b) ? (a) : (b))
713 /* We take the address of fclose later, but some stdio's forget
714 to declare this. We can't always declare it since there's
715 no way to declare the parameters without upsetting some compiler
718 #ifndef FCLOSE_PROVIDED
719 extern int fclose
PARAMS ((FILE *));
723 extern double atof
PARAMS ((const char *)); /* X3.159-1989 4.10.1.1 */
726 #ifndef MALLOC_INCOMPATIBLE
728 #ifdef NEED_DECLARATION_MALLOC
729 extern PTR
malloc ();
732 #ifdef NEED_DECLARATION_REALLOC
733 extern PTR
realloc ();
736 #ifdef NEED_DECLARATION_FREE
740 #endif /* MALLOC_INCOMPATIBLE */
742 /* Various possibilities for alloca. */
745 # define alloca __builtin_alloca
746 # else /* Not GNU C */
747 # ifdef HAVE_ALLOCA_H
754 /* We need to be careful not to declare this in a way which conflicts with
755 bison. Bison never declares it as char *, but under various circumstances
756 (like __hpux) we need to use void *. */
757 # if defined (__STDC__) || defined (__hpux)
758 extern void *alloca ();
759 # else /* Don't use void *. */
760 extern char *alloca ();
761 # endif /* Don't use void *. */
762 # endif /* Not _AIX */
763 # endif /* Not HAVE_ALLOCA_H */
764 # endif /* Not GNU C */
765 #endif /* alloca not defined */
767 /* HOST_BYTE_ORDER must be defined to one of these. */
773 #if !defined (BIG_ENDIAN)
774 #define BIG_ENDIAN 4321
777 #if !defined (LITTLE_ENDIAN)
778 #define LITTLE_ENDIAN 1234
781 /* Target-system-dependent parameters for GDB. */
783 /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness
784 is selectable at runtime. The user can use the `set endian'
785 command to change it. TARGET_BYTE_ORDER_AUTO is nonzero when
786 target_byte_order should be auto-detected (from the program image
789 #ifndef TARGET_BYTE_ORDER_SELECTABLE_P
790 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE
791 when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */
792 #ifdef TARGET_BYTE_ORDER_SELECTABLE
793 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
795 #define TARGET_BYTE_ORDER_SELECTABLE_P 0
799 extern int target_byte_order
;
800 #ifdef TARGET_BYTE_ORDER_SELECTABLE
801 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE
802 and expect defs.h to re-define TARGET_BYTE_ORDER. */
803 #undef TARGET_BYTE_ORDER
805 #ifndef TARGET_BYTE_ORDER
806 #define TARGET_BYTE_ORDER (target_byte_order + 0)
809 extern int target_byte_order_auto
;
810 #ifndef TARGET_BYTE_ORDER_AUTO
811 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
814 extern void set_endian_from_file
PARAMS ((bfd
*));
816 /* The target architecture can be set at run-time. */
817 extern int target_architecture_auto
;
818 extern const bfd_arch_info_type
*target_architecture
;
819 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
820 #define TARGET_ARCHITECTURE (target_architecture + 0)
821 extern void set_architecture_from_file
PARAMS ((bfd
*));
822 /* Notify target of a change to the selected architecture. Zero return
823 status indicates that the target did not like the change. */
824 extern int (*target_architecture_hook
) PARAMS ((const bfd_arch_info_type
*ap
));
825 extern void set_architecture_from_arch_mach
PARAMS ((enum bfd_architecture arch
, unsigned long mach
));
827 /* Number of bits in a char or unsigned char for the target machine.
828 Just like CHAR_BIT in <limits.h> but describes the target machine. */
829 #if !defined (TARGET_CHAR_BIT)
830 #define TARGET_CHAR_BIT 8
833 /* Number of bits in a short or unsigned short for the target machine. */
834 #if !defined (TARGET_SHORT_BIT)
835 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
838 /* Number of bits in an int or unsigned int for the target machine. */
839 #if !defined (TARGET_INT_BIT)
840 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
843 /* Number of bits in a long or unsigned long for the target machine. */
844 #if !defined (TARGET_LONG_BIT)
845 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
848 /* Number of bits in a long long or unsigned long long for the target machine. */
849 #if !defined (TARGET_LONG_LONG_BIT)
850 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
853 /* Number of bits in a float for the target machine. */
854 #if !defined (TARGET_FLOAT_BIT)
855 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
858 /* Number of bits in a double for the target machine. */
859 #if !defined (TARGET_DOUBLE_BIT)
860 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
863 /* Number of bits in a long double for the target machine. */
864 #if !defined (TARGET_LONG_DOUBLE_BIT)
865 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
868 /* Number of bits in a pointer for the target machine */
869 #if !defined (TARGET_PTR_BIT)
870 #define TARGET_PTR_BIT TARGET_INT_BIT
873 /* If we picked up a copy of CHAR_BIT from a configuration file
874 (which may get it by including <limits.h>) then use it to set
875 the number of bits in a host char. If not, use the same size
878 #if defined (CHAR_BIT)
879 #define HOST_CHAR_BIT CHAR_BIT
881 #define HOST_CHAR_BIT TARGET_CHAR_BIT
884 /* The bit byte-order has to do just with numbering of bits in
885 debugging symbols and such. Conceptually, it's quite separate
886 from byte/word byte order. */
888 #if !defined (BITS_BIG_ENDIAN)
889 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
894 extern LONGEST extract_signed_integer
PARAMS ((void *, int));
896 extern ULONGEST extract_unsigned_integer
PARAMS ((void *, int));
898 extern int extract_long_unsigned_integer
PARAMS ((void *, int, LONGEST
*));
900 extern CORE_ADDR extract_address
PARAMS ((void *, int));
902 extern void store_signed_integer
PARAMS ((void *, int, LONGEST
));
904 extern void store_unsigned_integer
PARAMS ((void *, int, ULONGEST
));
906 extern void store_address
PARAMS ((void *, int, CORE_ADDR
));
908 /* Setup definitions for host and target floating point formats. We need to
909 consider the format for `float', `double', and `long double' for both target
910 and host. We need to do this so that we know what kind of conversions need
911 to be done when converting target numbers to and from the hosts DOUBLEST
914 /* This is used to indicate that we don't know the format of the floating point
915 number. Typically, this is useful for native ports, where the actual format
916 is irrelevant, since no conversions will be taking place. */
918 extern const struct floatformat floatformat_unknown
;
920 #if HOST_BYTE_ORDER == BIG_ENDIAN
921 # ifndef HOST_FLOAT_FORMAT
922 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
924 # ifndef HOST_DOUBLE_FORMAT
925 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
927 #else /* LITTLE_ENDIAN */
928 # ifndef HOST_FLOAT_FORMAT
929 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
931 # ifndef HOST_DOUBLE_FORMAT
932 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
936 #ifndef HOST_LONG_DOUBLE_FORMAT
937 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
940 #ifndef TARGET_FLOAT_FORMAT
941 #define TARGET_FLOAT_FORMAT (target_byte_order == BIG_ENDIAN \
942 ? &floatformat_ieee_single_big \
943 : &floatformat_ieee_single_little)
945 #ifndef TARGET_DOUBLE_FORMAT
946 #define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
947 ? &floatformat_ieee_double_big \
948 : &floatformat_ieee_double_little)
951 #ifndef TARGET_LONG_DOUBLE_FORMAT
952 # define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
955 /* Use `long double' if the host compiler supports it. (Note that this is not
956 necessarily any longer than `double'. On SunOS/gcc, it's the same as
957 double.) This is necessary because GDB internally converts all floating
958 point values to the widest type supported by the host.
960 There are problems however, when the target `long double' is longer than the
961 host's `long double'. In general, we'll probably reduce the precision of
962 any such values and print a warning. */
964 #ifdef HAVE_LONG_DOUBLE
965 typedef long double DOUBLEST
;
967 typedef double DOUBLEST
;
970 extern void floatformat_to_doublest
PARAMS ((const struct floatformat
*,
971 char *, DOUBLEST
*));
972 extern void floatformat_from_doublest
PARAMS ((const struct floatformat
*,
973 DOUBLEST
*, char *));
974 extern DOUBLEST extract_floating
PARAMS ((void *, int));
976 extern void store_floating
PARAMS ((void *, int, DOUBLEST
));
978 /* On some machines there are bits in addresses which are not really
979 part of the address, but are used by the kernel, the hardware, etc.
980 for special purposes. ADDR_BITS_REMOVE takes out any such bits
981 so we get a "real" address such as one would find in a symbol
982 table. This is used only for addresses of instructions, and even then
983 I'm not sure it's used in all contexts. It exists to deal with there
984 being a few stray bits in the PC which would mislead us, not as some sort
985 of generic thing to handle alignment or segmentation (it's possible it
986 should be in TARGET_READ_PC instead). */
987 #if !defined (ADDR_BITS_REMOVE)
988 #define ADDR_BITS_REMOVE(addr) (addr)
989 #endif /* No ADDR_BITS_REMOVE. */
993 extern CORE_ADDR push_bytes
PARAMS ((CORE_ADDR
, char *, int));
995 extern CORE_ADDR push_word
PARAMS ((CORE_ADDR
, ULONGEST
));
997 /* Some parts of gdb might be considered optional, in the sense that they
998 are not essential for being able to build a working, usable debugger
999 for a specific environment. For example, the maintenance commands
1000 are there for the benefit of gdb maintainers. As another example,
1001 some environments really don't need gdb's that are able to read N
1002 different object file formats. In order to make it possible (but
1003 not necessarily recommended) to build "stripped down" versions of
1004 gdb, the following defines control selective compilation of those
1005 parts of gdb which can be safely left out when necessary. Note that
1006 the default is to include everything. */
1008 #ifndef MAINTENANCE_CMDS
1009 #define MAINTENANCE_CMDS 1
1012 #ifdef MAINTENANCE_CMDS
1013 extern int watchdog
;
1016 #include "dis-asm.h" /* Get defs for disassemble_info */
1018 extern int dis_asm_read_memory
PARAMS ((bfd_vma memaddr
, bfd_byte
*myaddr
,
1019 int len
, disassemble_info
*info
));
1021 extern void dis_asm_memory_error
PARAMS ((int status
, bfd_vma memaddr
,
1022 disassemble_info
*info
));
1024 extern void dis_asm_print_address
PARAMS ((bfd_vma addr
,
1025 disassemble_info
*info
));
1027 extern int (*tm_print_insn
) PARAMS ((bfd_vma
, disassemble_info
*));
1028 extern disassemble_info tm_print_insn_info
;
1029 #ifndef TARGET_PRINT_INSN
1030 #define TARGET_PRINT_INSN(vma, info) (*tm_print_insn) (vma, info)
1032 #ifndef TARGET_PRINT_INSN_INFO
1033 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1036 /* Hooks for alternate command interfaces. */
1039 struct target_waitstatus
;
1040 struct cmd_list_element
;
1043 extern void (*init_ui_hook
) PARAMS ((char *argv0
));
1044 extern void (*command_loop_hook
) PARAMS ((void));
1045 extern void (*fputs_unfiltered_hook
) PARAMS ((const char *linebuffer
,
1047 extern void (*print_frame_info_listing_hook
) PARAMS ((struct symtab
*s
,
1048 int line
, int stopline
,
1050 extern int (*query_hook
) PARAMS ((const char *, va_list));
1051 extern void (*warning_hook
) PARAMS ((const char *, va_list));
1052 extern void (*flush_hook
) PARAMS ((FILE *stream
));
1053 extern void (*create_breakpoint_hook
) PARAMS ((struct breakpoint
*b
));
1054 extern void (*delete_breakpoint_hook
) PARAMS ((struct breakpoint
*bpt
));
1055 extern void (*modify_breakpoint_hook
) PARAMS ((struct breakpoint
*bpt
));
1056 extern void (*target_output_hook
) PARAMS ((char *));
1057 extern void (*interactive_hook
) PARAMS ((void));
1058 extern void (*registers_changed_hook
) PARAMS ((void));
1059 extern void (*readline_begin_hook
) PARAMS ((char *, ...));
1060 extern char * (*readline_hook
) PARAMS ((char *));
1061 extern void (*readline_end_hook
) PARAMS ((void));
1062 extern void (*pc_changed_hook
) PARAMS ((void));
1063 extern void (*context_hook
) PARAMS ((int));
1064 extern int (*target_wait_hook
) PARAMS ((int pid
,
1065 struct target_waitstatus
*status
));
1067 extern void (*call_command_hook
) PARAMS ((struct cmd_list_element
*c
,
1068 char *cmd
, int from_tty
));
1070 extern NORETURN
void (*error_hook
) PARAMS ((void)) ATTR_NORETURN
;
1074 /* Inhibit window interface if non-zero. */
1076 extern int use_windows
;
1078 /* Symbolic definitions of filename-related things. */
1079 /* FIXME, this doesn't work very well if host and executable
1080 filesystems conventions are different. */
1082 #ifndef DIRNAME_SEPARATOR
1083 #define DIRNAME_SEPARATOR ':'
1087 #if defined(__GO32__)||defined(_WIN32)
1088 #define SLASH_P(X) ((X)=='\\')
1090 #define SLASH_P(X) ((X)=='/')
1095 #if defined(__GO32__)||defined(_WIN32)
1096 #define SLASH_CHAR '\\'
1098 #define SLASH_CHAR '/'
1102 #ifndef SLASH_STRING
1103 #if defined(__GO32__)||defined(_WIN32)
1104 #define SLASH_STRING "\\"
1106 #define SLASH_STRING "/"
1111 #define ROOTED_P(X) (SLASH_P((X)[0]))
1114 /* On some systems, PIDGET is defined to extract the inferior pid from
1115 an internal pid that has the thread id and pid in seperate bit
1116 fields. If not defined, then just use the entire internal pid as
1120 #define PIDGET(pid) (pid)
1123 /* If under Cygwin, provide backwards compatibility with older
1124 Cygwin compilers that don't define the current cpp define. */
1131 #endif /* #ifndef DEFS_H */