1 /* Basic, host-specific, and target-specific definitions for GDB.
2 Copyright (C) 1986, 89, 91, 92, 93, 94, 95, 1996, 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 extern void _initialize_blockframe PARAMS ((void));
225 /* From ch-lang.c, for the moment. (FIXME) */
227 extern char *chill_demangle PARAMS ((const char *));
231 extern void notice_quit PARAMS ((void));
233 extern int strcmp_iw PARAMS ((const char *, const char *));
235 extern char *safe_strerror PARAMS ((int));
237 extern char *safe_strsignal PARAMS ((int));
239 extern void init_malloc PARAMS ((void *));
241 extern void request_quit PARAMS ((int));
243 extern void do_cleanups PARAMS ((struct cleanup *));
244 extern void do_final_cleanups PARAMS ((struct cleanup *));
245 extern void do_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
247 extern void discard_cleanups PARAMS ((struct cleanup *));
248 extern void discard_final_cleanups PARAMS ((struct cleanup *));
249 extern void discard_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
251 typedef void (*make_cleanup_func) (void *);
253 extern struct cleanup *
254 make_cleanup PARAMS ((make_cleanup_func, void *));
256 extern struct cleanup *
257 make_final_cleanup PARAMS ((void (*function) (void *), void *));
259 extern struct cleanup *
260 make_my_cleanup PARAMS ((struct cleanup **, void (*function) (void *), void *));
262 extern struct cleanup *
263 make_run_cleanup PARAMS ((void (*function) (void *), void *));
265 extern struct cleanup *save_cleanups PARAMS ((void));
266 extern struct cleanup *save_final_cleanups PARAMS ((void));
267 extern struct cleanup *save_my_cleanups PARAMS ((struct cleanup **));
269 extern void restore_cleanups PARAMS ((struct cleanup *));
270 extern void restore_final_cleanups PARAMS ((struct cleanup *));
271 extern void restore_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
273 extern void free_current_contents PARAMS ((char **));
275 extern void null_cleanup PARAMS ((PTR));
277 extern int myread PARAMS ((int, char *, int));
279 extern int query PARAMS((char *, ...))
280 ATTR_FORMAT(printf, 1, 2);
282 #if !defined (USE_MMALLOC)
283 extern PTR mmalloc PARAMS ((PTR, size_t));
284 extern PTR mrealloc PARAMS ((PTR, PTR, size_t));
285 extern void mfree PARAMS ((PTR, PTR));
288 /* From demangle.c */
290 extern void set_demangling_style PARAMS ((char *));
293 /* Annotation stuff. */
295 extern int annotation_level; /* in stack.c */
297 extern void begin_line PARAMS ((void));
299 extern void wrap_here PARAMS ((char *));
301 extern void reinitialize_more_filter PARAMS ((void));
303 typedef FILE GDB_FILE;
304 #define gdb_stdout stdout
305 #define gdb_stderr stderr
307 extern void gdb_flush PARAMS ((GDB_FILE *));
309 extern GDB_FILE *gdb_fopen PARAMS ((char * name, char * mode));
311 extern void fputs_filtered PARAMS ((const char *, GDB_FILE *));
313 extern void fputs_unfiltered PARAMS ((const char *, GDB_FILE *));
315 extern int fputc_filtered PARAMS ((int c, GDB_FILE *));
317 extern int fputc_unfiltered PARAMS ((int c, GDB_FILE *));
319 extern int putchar_unfiltered PARAMS ((int c));
321 extern void puts_filtered PARAMS ((const char *));
323 extern void puts_unfiltered PARAMS ((const char *));
325 extern void puts_debug PARAMS ((char *prefix, char *string, char *suffix));
327 extern void vprintf_filtered PARAMS ((const char *, va_list))
328 ATTR_FORMAT(printf, 1, 0);
330 extern void vfprintf_filtered PARAMS ((FILE *, const char *, va_list))
331 ATTR_FORMAT(printf, 2, 0);
333 extern void fprintf_filtered PARAMS ((FILE *, const char *, ...))
334 ATTR_FORMAT(printf, 2, 3);
336 extern void fprintfi_filtered PARAMS ((int, FILE *, const char *, ...))
337 ATTR_FORMAT(printf, 3, 4);
339 extern void printf_filtered PARAMS ((const char *, ...))
340 ATTR_FORMAT(printf, 1, 2);
342 extern void printfi_filtered PARAMS ((int, const char *, ...))
343 ATTR_FORMAT(printf, 2, 3);
345 extern void vprintf_unfiltered PARAMS ((const char *, va_list))
346 ATTR_FORMAT(printf, 1, 0);
348 extern void vfprintf_unfiltered PARAMS ((FILE *, const char *, va_list))
349 ATTR_FORMAT(printf, 2, 0);
351 extern void fprintf_unfiltered PARAMS ((FILE *, const char *, ...))
352 ATTR_FORMAT(printf, 2, 3);
354 extern void printf_unfiltered PARAMS ((const char *, ...))
355 ATTR_FORMAT(printf, 1, 2);
357 extern void print_spaces PARAMS ((int, GDB_FILE *));
359 extern void print_spaces_filtered PARAMS ((int, GDB_FILE *));
361 extern char *n_spaces PARAMS ((int));
363 extern void gdb_printchar PARAMS ((int, GDB_FILE *, int));
365 extern void gdb_print_address PARAMS ((void *, GDB_FILE *));
367 typedef bfd_vma t_addr;
368 typedef bfd_vma t_reg;
369 extern char* paddr PARAMS ((t_addr addr));
371 extern char* preg PARAMS ((t_reg reg));
373 extern char* paddr_nz PARAMS ((t_addr addr));
375 extern char* preg_nz PARAMS ((t_reg reg));
377 extern void fprintf_symbol_filtered PARAMS ((GDB_FILE *, char *,
378 enum language, int));
380 extern NORETURN void perror_with_name PARAMS ((char *)) ATTR_NORETURN;
382 extern void print_sys_errmsg PARAMS ((char *, int));
384 extern void _initialize_stack PARAMS ((void));
386 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
387 "const char *" in unistd.h, so we can't declare the argument
390 extern char *re_comp PARAMS ((const char *));
394 extern void symbol_file_command PARAMS ((char *, int));
398 extern char *skip_quoted PARAMS ((char *));
400 extern char *gdb_readline PARAMS ((char *));
402 extern char *command_line_input PARAMS ((char *, int, char *));
404 extern void print_prompt PARAMS ((void));
406 extern int input_from_terminal_p PARAMS ((void));
408 extern int info_verbose;
410 /* From printcmd.c */
412 extern void set_next_address PARAMS ((CORE_ADDR));
414 extern void print_address_symbolic PARAMS ((CORE_ADDR, GDB_FILE *, int,
417 extern void print_address_numeric PARAMS ((CORE_ADDR, int, GDB_FILE *));
419 extern void print_address PARAMS ((CORE_ADDR, GDB_FILE *));
421 extern void _initialize_printcmd PARAMS ((void));
425 extern int openp PARAMS ((char *, int, char *, int, int, char **));
427 extern void mod_path PARAMS ((char *, char **));
429 extern void directory_command PARAMS ((char *, int));
431 extern void init_source_path PARAMS ((void));
433 extern char *symtab_to_filename PARAMS ((struct symtab *));
437 extern int read_relative_register_raw_bytes PARAMS ((int, char *));
439 /* From readline (but not in any readline .h files). */
441 extern char *tilde_expand PARAMS ((char *));
443 /* Control types for commands */
445 enum misc_command_type
453 enum command_control_type
463 /* Structure for saved commands lines
464 (for breakpoints, defined commands, etc). */
468 struct command_line *next;
470 enum command_control_type control_type;
472 struct command_line **body_list;
475 extern struct command_line *read_command_lines PARAMS ((char *, int));
477 extern void free_command_lines PARAMS ((struct command_line **));
479 /* String containing the current directory (what getwd would return). */
481 extern char *current_directory;
483 /* Default radixes for input and output. Only some values supported. */
484 extern unsigned input_radix;
485 extern unsigned output_radix;
487 /* Possibilities for prettyprint parameters to routines which print
488 things. Like enum language, this should be in value.h, but needs
489 to be here for the same reason. FIXME: If we can eliminate this
490 as an arg to LA_VAL_PRINT, then we can probably move it back to
495 Val_no_prettyprint = 0,
497 /* Use the default setting which the user has specified. */
502 /* Host machine definition. This will be a symlink to one of the
503 xm-*.h files, built by the `configure' script. */
507 /* Native machine support. This will be a symlink to one of the
508 nm-*.h files, built by the `configure' script. */
512 /* Target machine definition. This will be a symlink to one of the
513 tm-*.h files, built by the `configure' script. */
517 /* If the xm.h file did not define the mode string used to open the
518 files, assume that binary files are opened the same way as text
521 #include "fopen-same.h"
524 /* Microsoft C can't deal with const pointers */
529 #define CONST_PTR const
533 * Allow things in gdb to be declared "volatile". If compiling ANSI, it
534 * just works. If compiling with gcc but non-ansi, redefine to __volatile__.
535 * If non-ansi, non-gcc, then eliminate "volatile" entirely, making those
536 * objects be read-write rather than read-only.
542 # define volatile __volatile__
544 # define volatile /*nothing*/
547 #endif /* volatile */
549 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
550 FIXME: Assumes 2's complement arithmetic */
552 #if !defined (UINT_MAX)
553 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
556 #if !defined (INT_MAX)
557 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
560 #if !defined (INT_MIN)
561 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
564 #if !defined (ULONG_MAX)
565 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
568 #if !defined (LONG_MAX)
569 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
576 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
578 #define LONGEST BFD_HOST_64_BIT
579 #define ULONGEST BFD_HOST_U_64_BIT
583 # ifdef CC_HAS_LONG_LONG
584 # define LONGEST long long
585 # define ULONGEST unsigned long long
587 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
588 (e.g. i386-windows) so try it. */
589 # ifdef BFD_HOST_64_BIT
590 # define LONGEST BFD_HOST_64_BIT
591 # define ULONGEST BFD_HOST_U_64_BIT
593 # define LONGEST long
594 # define ULONGEST unsigned long
598 #endif /* No BFD64 */
600 #endif /* ! LONGEST */
602 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
603 arguments to a function, number in a value history, register number, etc.)
604 where the value must not be larger than can fit in an int. */
606 extern int longest_to_int PARAMS ((LONGEST));
608 /* Assorted functions we can declare, now that const and volatile are
611 extern char *savestring PARAMS ((const char *, int));
613 extern char *msavestring PARAMS ((void *, const char *, int));
615 extern char *strsave PARAMS ((const char *));
617 extern char *mstrsave PARAMS ((void *, const char *));
619 #ifdef _MSC_VER /* FIXME; was long, but this causes compile errors in msvc if already defined */
620 extern PTR xmmalloc PARAMS ((PTR, size_t));
622 extern PTR xmrealloc PARAMS ((PTR, PTR, size_t));
624 extern PTR xmmalloc PARAMS ((PTR, long));
626 extern PTR xmrealloc PARAMS ((PTR, PTR, long));
629 extern int parse_escape PARAMS ((char **));
631 extern char *reg_names[];
633 /* Message to be printed before the error message, when an error occurs. */
635 extern char *error_pre_print;
637 /* Message to be printed before the error message, when an error occurs. */
639 extern char *quit_pre_print;
641 /* Message to be printed before the warning message, when a warning occurs. */
643 extern char *warning_pre_print;
645 extern NORETURN void error PARAMS((const char *, ...)) ATTR_NORETURN;
647 extern void error_begin PARAMS ((void));
649 extern NORETURN void fatal PARAMS((char *, ...)) ATTR_NORETURN;
651 extern NORETURN void nomem PARAMS ((long)) ATTR_NORETURN;
653 /* Reasons for calling return_to_top_level. */
655 /* User interrupt. */
658 /* Any other error. */
662 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
663 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
664 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
665 typedef int return_mask;
668 return_to_top_level PARAMS ((enum return_reason)) ATTR_NORETURN;
671 catch_errors PARAMS ((int (*) (char *), void *, char *, return_mask));
673 extern void warning_begin PARAMS ((void));
675 extern void warning PARAMS ((const char *, ...))
676 ATTR_FORMAT(printf, 1, 2);
678 /* Global functions from other, non-gdb GNU thingies.
679 Libiberty thingies are no longer declared here. We include libiberty.h
682 #ifndef GETENV_PROVIDED
683 extern char *getenv PARAMS ((const char *));
686 /* From other system libraries */
693 #if defined(_MSC_VER) && !defined(__cplusplus)
694 /* msvc defines these in stdlib.h for c code */
701 #define min(a, b) ((a) < (b) ? (a) : (b))
704 #define max(a, b) ((a) > (b) ? (a) : (b))
708 /* We take the address of fclose later, but some stdio's forget
709 to declare this. We can't always declare it since there's
710 no way to declare the parameters without upsetting some compiler
713 #ifndef FCLOSE_PROVIDED
714 extern int fclose PARAMS ((FILE *));
718 extern double atof PARAMS ((const char *)); /* X3.159-1989 4.10.1.1 */
721 #ifndef MALLOC_INCOMPATIBLE
723 #ifdef NEED_DECLARATION_MALLOC
724 extern PTR malloc ();
727 #ifdef NEED_DECLARATION_REALLOC
728 extern PTR realloc ();
731 #ifdef NEED_DECLARATION_FREE
735 #endif /* MALLOC_INCOMPATIBLE */
737 /* Various possibilities for alloca. */
740 # define alloca __builtin_alloca
741 # else /* Not GNU C */
742 # ifdef HAVE_ALLOCA_H
749 /* We need to be careful not to declare this in a way which conflicts with
750 bison. Bison never declares it as char *, but under various circumstances
751 (like __hpux) we need to use void *. */
752 # if defined (__STDC__) || defined (__hpux)
753 extern void *alloca ();
754 # else /* Don't use void *. */
755 extern char *alloca ();
756 # endif /* Don't use void *. */
757 # endif /* Not _AIX */
758 # endif /* Not HAVE_ALLOCA_H */
759 # endif /* Not GNU C */
760 #endif /* alloca not defined */
762 /* HOST_BYTE_ORDER must be defined to one of these. */
768 #if !defined (BIG_ENDIAN)
769 #define BIG_ENDIAN 4321
772 #if !defined (LITTLE_ENDIAN)
773 #define LITTLE_ENDIAN 1234
776 /* Target-system-dependent parameters for GDB. */
778 #ifdef TARGET_BYTE_ORDER_SELECTABLE
779 /* The target endianness is selectable at runtime. Define
780 TARGET_BYTE_ORDER to be a variable. The user can use the `set
781 endian' command to change it. */
782 #undef TARGET_BYTE_ORDER
783 #define TARGET_BYTE_ORDER target_byte_order
784 extern int target_byte_order;
785 /* Nonzero when target_byte_order auto-detected */
786 extern int target_byte_order_auto;
789 extern void set_endian_from_file PARAMS ((bfd *));
791 /* The target architecture can be set at run-time. */
792 extern int target_architecture_auto;
793 extern const bfd_arch_info_type *target_architecture;
794 extern void set_architecture_from_file PARAMS ((bfd *));
795 /* Notify target of a change to the selected architecture. Zero return
796 status indicates that the target did not like the change. */
797 extern int (*target_architecture_hook) PARAMS ((const bfd_arch_info_type *ap));
798 extern void set_architecture_from_arch_mach PARAMS ((enum bfd_architecture arch, unsigned long mach));
800 /* Number of bits in a char or unsigned char for the target machine.
801 Just like CHAR_BIT in <limits.h> but describes the target machine. */
802 #if !defined (TARGET_CHAR_BIT)
803 #define TARGET_CHAR_BIT 8
806 /* Number of bits in a short or unsigned short for the target machine. */
807 #if !defined (TARGET_SHORT_BIT)
808 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
811 /* Number of bits in an int or unsigned int for the target machine. */
812 #if !defined (TARGET_INT_BIT)
813 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
816 /* Number of bits in a long or unsigned long for the target machine. */
817 #if !defined (TARGET_LONG_BIT)
818 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
821 /* Number of bits in a long long or unsigned long long for the target machine. */
822 #if !defined (TARGET_LONG_LONG_BIT)
823 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
826 /* Number of bits in a float for the target machine. */
827 #if !defined (TARGET_FLOAT_BIT)
828 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
831 /* Number of bits in a double for the target machine. */
832 #if !defined (TARGET_DOUBLE_BIT)
833 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
836 /* Number of bits in a long double for the target machine. */
837 #if !defined (TARGET_LONG_DOUBLE_BIT)
838 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
841 /* Number of bits in a pointer for the target machine */
842 #if !defined (TARGET_PTR_BIT)
843 #define TARGET_PTR_BIT TARGET_INT_BIT
846 /* If we picked up a copy of CHAR_BIT from a configuration file
847 (which may get it by including <limits.h>) then use it to set
848 the number of bits in a host char. If not, use the same size
851 #if defined (CHAR_BIT)
852 #define HOST_CHAR_BIT CHAR_BIT
854 #define HOST_CHAR_BIT TARGET_CHAR_BIT
857 /* The bit byte-order has to do just with numbering of bits in
858 debugging symbols and such. Conceptually, it's quite separate
859 from byte/word byte order. */
861 #if !defined (BITS_BIG_ENDIAN)
862 #ifndef TARGET_BYTE_ORDER_SELECTABLE
864 #if TARGET_BYTE_ORDER == BIG_ENDIAN
865 #define BITS_BIG_ENDIAN 1
866 #endif /* Big endian. */
868 #if TARGET_BYTE_ORDER == LITTLE_ENDIAN
869 #define BITS_BIG_ENDIAN 0
870 #endif /* Little endian. */
872 #else /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
874 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
876 #endif /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
877 #endif /* BITS_BIG_ENDIAN not defined. */
881 extern LONGEST extract_signed_integer PARAMS ((void *, int));
883 extern ULONGEST extract_unsigned_integer PARAMS ((void *, int));
885 extern int extract_long_unsigned_integer PARAMS ((void *, int, LONGEST *));
887 extern CORE_ADDR extract_address PARAMS ((void *, int));
889 extern void store_signed_integer PARAMS ((void *, int, LONGEST));
891 extern void store_unsigned_integer PARAMS ((void *, int, ULONGEST));
893 extern void store_address PARAMS ((void *, int, CORE_ADDR));
895 /* Setup definitions for host and target floating point formats. We need to
896 consider the format for `float', `double', and `long double' for both target
897 and host. We need to do this so that we know what kind of conversions need
898 to be done when converting target numbers to and from the hosts DOUBLEST
901 /* This is used to indicate that we don't know the format of the floating point
902 number. Typically, this is useful for native ports, where the actual format
903 is irrelevant, since no conversions will be taking place. */
905 extern const struct floatformat floatformat_unknown;
907 #if HOST_BYTE_ORDER == BIG_ENDIAN
908 # ifndef HOST_FLOAT_FORMAT
909 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
911 # ifndef HOST_DOUBLE_FORMAT
912 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
914 #else /* LITTLE_ENDIAN */
915 # ifndef HOST_FLOAT_FORMAT
916 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
918 # ifndef HOST_DOUBLE_FORMAT
919 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
923 #ifndef HOST_LONG_DOUBLE_FORMAT
924 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
927 #ifndef TARGET_BYTE_ORDER_SELECTABLE
928 # if TARGET_BYTE_ORDER == BIG_ENDIAN
929 # ifndef TARGET_FLOAT_FORMAT
930 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_big
932 # ifndef TARGET_DOUBLE_FORMAT
933 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_big
935 # else /* LITTLE_ENDIAN */
936 # ifndef TARGET_FLOAT_FORMAT
937 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_little
939 # ifndef TARGET_DOUBLE_FORMAT
940 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_little
943 #else /* TARGET_BYTE_ORDER_SELECTABLE */
944 # ifndef TARGET_FLOAT_FORMAT
945 # define TARGET_FLOAT_FORMAT (target_byte_order == BIG_ENDIAN \
946 ? &floatformat_ieee_single_big \
947 : &floatformat_ieee_single_little)
949 # ifndef TARGET_DOUBLE_FORMAT
950 # define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
951 ? &floatformat_ieee_double_big \
952 : &floatformat_ieee_double_little)
956 #ifndef TARGET_LONG_DOUBLE_FORMAT
957 # define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
960 /* Use `long double' if the host compiler supports it. (Note that this is not
961 necessarily any longer than `double'. On SunOS/gcc, it's the same as
962 double.) This is necessary because GDB internally converts all floating
963 point values to the widest type supported by the host.
965 There are problems however, when the target `long double' is longer than the
966 host's `long double'. In general, we'll probably reduce the precision of
967 any such values and print a warning. */
969 #ifdef HAVE_LONG_DOUBLE
970 typedef long double DOUBLEST;
972 typedef double DOUBLEST;
975 extern void floatformat_to_doublest PARAMS ((const struct floatformat *,
976 char *, DOUBLEST *));
977 extern void floatformat_from_doublest PARAMS ((const struct floatformat *,
978 DOUBLEST *, char *));
979 extern DOUBLEST extract_floating PARAMS ((void *, int));
981 extern void store_floating PARAMS ((void *, int, DOUBLEST));
983 /* On some machines there are bits in addresses which are not really
984 part of the address, but are used by the kernel, the hardware, etc.
985 for special purposes. ADDR_BITS_REMOVE takes out any such bits
986 so we get a "real" address such as one would find in a symbol
987 table. This is used only for addresses of instructions, and even then
988 I'm not sure it's used in all contexts. It exists to deal with there
989 being a few stray bits in the PC which would mislead us, not as some sort
990 of generic thing to handle alignment or segmentation (it's possible it
991 should be in TARGET_READ_PC instead). */
992 #if !defined (ADDR_BITS_REMOVE)
993 #define ADDR_BITS_REMOVE(addr) (addr)
994 #endif /* No ADDR_BITS_REMOVE. */
998 extern CORE_ADDR push_bytes PARAMS ((CORE_ADDR, char *, int));
1000 extern CORE_ADDR push_word PARAMS ((CORE_ADDR, ULONGEST));
1002 /* Some parts of gdb might be considered optional, in the sense that they
1003 are not essential for being able to build a working, usable debugger
1004 for a specific environment. For example, the maintenance commands
1005 are there for the benefit of gdb maintainers. As another example,
1006 some environments really don't need gdb's that are able to read N
1007 different object file formats. In order to make it possible (but
1008 not necessarily recommended) to build "stripped down" versions of
1009 gdb, the following defines control selective compilation of those
1010 parts of gdb which can be safely left out when necessary. Note that
1011 the default is to include everything. */
1013 #ifndef MAINTENANCE_CMDS
1014 #define MAINTENANCE_CMDS 1
1017 #ifdef MAINTENANCE_CMDS
1018 extern int watchdog;
1021 #include "dis-asm.h" /* Get defs for disassemble_info */
1023 extern int dis_asm_read_memory PARAMS ((bfd_vma memaddr, bfd_byte *myaddr,
1024 int len, disassemble_info *info));
1026 extern void dis_asm_memory_error PARAMS ((int status, bfd_vma memaddr,
1027 disassemble_info *info));
1029 extern void dis_asm_print_address PARAMS ((bfd_vma addr,
1030 disassemble_info *info));
1032 extern int (*tm_print_insn) PARAMS ((bfd_vma, disassemble_info*));
1033 extern disassemble_info tm_print_insn_info;
1035 /* Hooks for alternate command interfaces. */
1038 struct target_waitstatus;
1039 struct cmd_list_element;
1042 extern void (*init_ui_hook) PARAMS ((char *argv0));
1043 extern void (*command_loop_hook) PARAMS ((void));
1044 extern void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer,
1046 extern void (*print_frame_info_listing_hook) PARAMS ((struct symtab *s,
1047 int line, int stopline,
1049 extern int (*query_hook) PARAMS ((const char *, va_list));
1050 extern void (*warning_hook) PARAMS ((const char *, va_list));
1051 extern void (*flush_hook) PARAMS ((FILE *stream));
1052 extern void (*create_breakpoint_hook) PARAMS ((struct breakpoint *b));
1053 extern void (*delete_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
1054 extern void (*modify_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
1055 extern void (*target_output_hook) PARAMS ((char *));
1056 extern void (*interactive_hook) PARAMS ((void));
1057 extern void (*registers_changed_hook) PARAMS ((void));
1058 extern void (*readline_begin_hook) PARAMS ((char *, ...));
1059 extern char * (*readline_hook) PARAMS ((char *));
1060 extern void (*readline_end_hook) PARAMS ((void));
1061 extern void (*pc_changed_hook) PARAMS ((void));
1062 extern void (*context_hook) PARAMS ((int));
1063 extern int (*target_wait_hook) PARAMS ((int pid,
1064 struct target_waitstatus *status));
1066 extern void (*call_command_hook) PARAMS ((struct cmd_list_element *c,
1067 char *cmd, int from_tty));
1069 extern NORETURN void (*error_hook) PARAMS ((void)) ATTR_NORETURN;
1073 /* Inhibit window interface if non-zero. */
1075 extern int use_windows;
1077 /* Symbolic definitions of filename-related things. */
1078 /* FIXME, this doesn't work very well if host and executable
1079 filesystems conventions are different. */
1081 #ifndef DIRNAME_SEPARATOR
1082 #define DIRNAME_SEPARATOR ':'
1086 #if defined(__GO32__)||defined(_WIN32)
1087 #define SLASH_P(X) ((X)=='\\')
1089 #define SLASH_P(X) ((X)=='/')
1094 #if defined(__GO32__)||defined(_WIN32)
1095 #define SLASH_CHAR '\\'
1097 #define SLASH_CHAR '/'
1101 #ifndef SLASH_STRING
1102 #if defined(__GO32__)||defined(_WIN32)
1103 #define SLASH_STRING "\\"
1105 #define SLASH_STRING "/"
1110 #define ROOTED_P(X) (SLASH_P((X)[0]))
1113 /* On some systems, PIDGET is defined to extract the inferior pid from
1114 an internal pid that has the thread id and pid in seperate bit
1115 fields. If not defined, then just use the entire internal pid as
1119 #define PIDGET(pid) (pid)
1122 #endif /* #ifndef DEFS_H */