1 /* Basic, host-specific, and target-specific definitions for GDB.
2 Copyright (C) 1986, 1989, 1991, 1992, 1993, 1994
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
26 /* First include ansidecl.h so we can use the various macro definitions
27 here and in all subsequent file inclusions. */
31 #include "libiberty.h"
33 /* libiberty.h can't declare this one, but evidently we can. */
34 extern char *strsignal
PARAMS ((int));
36 /* For BFD64 and bfd_vma. */
39 /* An address in the program being debugged. Host byte order. Rather
40 than duplicate all the logic in BFD which figures out what type
41 this is (long, long long, etc.) and whether it needs to be 64
42 bits (the host/target interactions are subtle), we just use
45 typedef bfd_vma CORE_ADDR
;
47 #define min(a, b) ((a) < (b) ? (a) : (b))
48 #define max(a, b) ((a) > (b) ? (a) : (b))
50 /* Gdb does *lots* of string compares. Use macros to speed them up by
51 avoiding function calls if the first characters are not the same. */
53 #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b))
54 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
55 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
57 /* The character GNU C++ uses to build identifiers that must be unique from
58 the program's identifiers (such as $this and $$vptr). */
59 #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
61 #include <errno.h> /* System call error return status */
64 extern int immediate_quit
;
65 extern int sevenbit_strings
;
67 extern void quit
PARAMS ((void));
69 #define QUIT { if (quit_flag) quit (); }
71 /* Command classes are top-level categories into which commands are broken
72 down for "help" purposes.
73 Notes on classes: class_alias is for alias commands which are not
74 abbreviations of the original command. class-pseudo is for commands
75 which are not really commands nor help topics ("stop"). */
79 /* Special args to help_list */
80 all_classes
= -2, all_commands
= -1,
81 /* Classes of commands */
82 no_class
= -1, class_run
= 0, class_vars
, class_stack
,
83 class_files
, class_support
, class_info
, class_breakpoint
,
84 class_alias
, class_obscure
, class_user
, class_maintenance
,
88 /* Languages represented in the symbol table and elsewhere.
89 This should probably be in language.h, but since enum's can't
90 be forward declared to satisfy opaque references before their
91 actual definition, needs to be here. */
95 language_unknown
, /* Language not known */
96 language_auto
, /* Placeholder for automatic setting */
98 language_cplus
, /* C++ */
99 language_chill
, /* Chill */
100 language_m2
, /* Modula-2 */
101 language_asm
/* Assembly language */
104 /* the cleanup list records things that have to be undone
105 if an error happens (descriptors to be closed, memory to be freed, etc.)
106 Each link in the chain records a function to call and an
109 Use make_cleanup to add an element to the cleanup chain.
110 Use do_cleanups to do all cleanup actions back to a given
111 point in the chain. Use discard_cleanups to remove cleanups
112 from the chain back to a given point, not doing them. */
116 struct cleanup
*next
;
117 void (*function
) PARAMS ((PTR
));
121 /* From blockframe.c */
123 extern int inside_entry_func
PARAMS ((CORE_ADDR
));
125 extern int inside_entry_file
PARAMS ((CORE_ADDR addr
));
127 extern int inside_main_func
PARAMS ((CORE_ADDR pc
));
129 /* From ch-lang.c, for the moment. (FIXME) */
131 extern char *chill_demangle
PARAMS ((const char *));
133 /* From libiberty.a */
135 extern char *cplus_demangle
PARAMS ((const char *, int));
137 extern char *cplus_mangle_opname
PARAMS ((char *, int));
139 /* From libmmalloc.a (memory mapped malloc library) */
141 extern PTR mmalloc_attach
PARAMS ((int, PTR
));
143 extern PTR mmalloc_detach
PARAMS ((PTR
));
145 extern PTR mmalloc
PARAMS ((PTR
, long));
147 extern PTR mrealloc
PARAMS ((PTR
, PTR
, long));
149 extern void mfree
PARAMS ((PTR
, PTR
));
151 extern int mmalloc_setkey
PARAMS ((PTR
, int, PTR
));
153 extern PTR mmalloc_getkey
PARAMS ((PTR
, int));
157 extern int strcmp_iw
PARAMS ((const char *, const char *));
159 extern char *safe_strerror
PARAMS ((int));
161 extern char *safe_strsignal
PARAMS ((int));
163 extern void init_malloc
PARAMS ((void *));
165 extern void request_quit
PARAMS ((int));
167 extern void do_cleanups
PARAMS ((struct cleanup
*));
169 extern void discard_cleanups
PARAMS ((struct cleanup
*));
171 /* The bare make_cleanup function is one of those rare beasts that
172 takes almost any type of function as the first arg and anything that
173 will fit in a "void *" as the second arg.
175 Should be, once all calls and called-functions are cleaned up:
176 extern struct cleanup *
177 make_cleanup PARAMS ((void (*function) (void *), void *));
179 Until then, lint and/or various type-checking compiler options will
180 complain about make_cleanup calls. It'd be wrong to just cast things,
181 since the type actually passed when the function is called would be
184 extern struct cleanup
*make_cleanup ();
186 extern struct cleanup
*save_cleanups
PARAMS ((void));
188 extern void restore_cleanups
PARAMS ((struct cleanup
*));
190 extern void free_current_contents
PARAMS ((char **));
192 extern void null_cleanup
PARAMS ((char **));
194 extern int myread
PARAMS ((int, char *, int));
198 /* Annotation stuff. */
200 extern int annotation_level
; /* in stack.c */
202 extern void begin_line
PARAMS ((void));
204 extern void wrap_here
PARAMS ((char *));
206 extern void reinitialize_more_filter
PARAMS ((void));
208 typedef FILE GDB_FILE
;
209 #define gdb_stdout stdout
210 #define gdb_stderr stderr
212 extern int print_insn
PARAMS ((CORE_ADDR
, GDB_FILE
*));
214 extern void gdb_flush
PARAMS ((GDB_FILE
*));
216 extern GDB_FILE
*gdb_fopen
PARAMS ((char * name
, char * mode
));
218 extern void fputs_filtered
PARAMS ((const char *, GDB_FILE
*));
220 extern void fputs_unfiltered
PARAMS ((const char *, GDB_FILE
*));
222 extern void fputc_unfiltered
PARAMS ((int, GDB_FILE
*));
224 extern void putc_unfiltered
PARAMS ((int));
226 #define putchar_unfiltered(C) putc_unfiltered(C)
228 extern void puts_filtered
PARAMS ((char *));
230 extern void puts_unfiltered
PARAMS ((char *));
232 extern void vprintf_filtered ();
234 extern void vfprintf_filtered ();
236 extern void fprintf_filtered ();
238 extern void fprintfi_filtered ();
240 extern void printf_filtered ();
242 extern void printfi_filtered ();
244 extern void vprintf_unfiltered ();
246 extern void vfprintf_unfiltered ();
248 extern void fprintf_unfiltered ();
250 extern void printf_unfiltered ();
252 extern void print_spaces
PARAMS ((int, GDB_FILE
*));
254 extern void print_spaces_filtered
PARAMS ((int, GDB_FILE
*));
256 extern char *n_spaces
PARAMS ((int));
258 extern void gdb_printchar
PARAMS ((int, GDB_FILE
*, int));
260 extern void gdb_print_address
PARAMS ((void *, GDB_FILE
*));
262 extern void fprintf_symbol_filtered
PARAMS ((GDB_FILE
*, char *,
263 enum language
, int));
265 extern void perror_with_name
PARAMS ((char *));
267 extern void print_sys_errmsg
PARAMS ((char *, int));
269 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
270 "const char *" in unistd.h, so we can't declare the argument
273 extern char *re_comp
PARAMS ((const char *));
277 extern void symbol_file_command
PARAMS ((char *, int));
281 extern char *skip_quoted
PARAMS ((char *));
283 extern char *gdb_readline
PARAMS ((char *));
285 extern char *command_line_input
PARAMS ((char *, int, char *));
287 extern void print_prompt
PARAMS ((void));
289 extern int input_from_terminal_p
PARAMS ((void));
291 /* From printcmd.c */
293 extern void set_next_address
PARAMS ((CORE_ADDR
));
295 extern void print_address_symbolic
PARAMS ((CORE_ADDR
, GDB_FILE
*, int,
298 extern void print_address_numeric
PARAMS ((CORE_ADDR
, int, GDB_FILE
*));
300 extern void print_address
PARAMS ((CORE_ADDR
, GDB_FILE
*));
304 extern int openp
PARAMS ((char *, int, char *, int, int, char **));
306 extern void mod_path
PARAMS ((char *, char **));
308 extern void directory_command
PARAMS ((char *, int));
310 extern void init_source_path
PARAMS ((void));
314 extern int read_relative_register_raw_bytes
PARAMS ((int, char *));
316 /* From readline (but not in any readline .h files). */
318 extern char *tilde_expand
PARAMS ((char *));
320 /* Structure for saved commands lines
321 (for breakpoints, defined commands, etc). */
325 struct command_line
*next
;
329 extern struct command_line
*read_command_lines
PARAMS ((void));
331 extern void free_command_lines
PARAMS ((struct command_line
**));
333 /* String containing the current directory (what getwd would return). */
335 extern char *current_directory
;
337 /* Default radixes for input and output. Only some values supported. */
338 extern unsigned input_radix
;
339 extern unsigned output_radix
;
341 /* Possibilities for prettyprint parameters to routines which print
342 things. Like enum language, this should be in value.h, but needs
343 to be here for the same reason. FIXME: If we can eliminate this
344 as an arg to LA_VAL_PRINT, then we can probably move it back to
349 Val_no_prettyprint
= 0,
351 /* Use the default setting which the user has specified. */
356 /* Host machine definition. This will be a symlink to one of the
357 xm-*.h files, built by the `configure' script. */
361 /* Native machine support. This will be a symlink to one of the
362 nm-*.h files, built by the `configure' script. */
366 /* If the xm.h file did not define the mode string used to open the
367 files, assume that binary files are opened the same way as text
370 #include "fopen-same.h"
374 * Allow things in gdb to be declared "const". If compiling ANSI, it
375 * just works. If compiling with gcc but non-ansi, redefine to __const__.
376 * If non-ansi, non-gcc, then eliminate "const" entirely, making those
377 * objects be read-write rather than read-only.
383 # define const __const__
385 # define const /*nothing*/
393 # define volatile __volatile__
395 # define volatile /*nothing*/
398 #endif /* volatile */
400 /* The ability to declare that a function never returns is useful, but
401 not really required to compile GDB successfully, so the NORETURN and
402 ATTR_NORETURN macros normally expand into nothing. */
404 /* If compiling with older versions of GCC, a function may be declared
405 "volatile" to indicate that it does not return. */
408 # if defined(__GNUC__) \
409 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5))
410 # define NORETURN volatile
412 # define NORETURN /* nothing */
416 /* GCC 2.5 and later versions define a function attribute "noreturn",
417 which is the preferred way to declare that a function never returns. */
419 #ifndef ATTR_NORETURN
420 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 5
421 # define ATTR_NORETURN __attribute__ ((noreturn))
423 # define ATTR_NORETURN /* nothing */
427 /* Defaults for system-wide constants (if not defined by xm.h, we fake it). */
429 #if !defined (UINT_MAX)
430 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
433 #if !defined (INT_MAX)
434 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
437 #if !defined (INT_MIN)
438 #define INT_MIN (-INT_MAX - 1) /* 0x80000000 for 32-bits */
441 #if !defined (ULONG_MAX)
442 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
445 #if !defined (LONG_MAX)
446 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
451 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
453 #define LONGEST BFD_HOST_64_BIT
457 /* If all compilers for this host support "long long" and we want to
458 use it for LONGEST (the performance hit is about 10% on a testsuite
459 run based on one DECstation test), then the xm.h file can define
462 Using GCC 1.39 on BSDI with long long causes about 700 new
463 testsuite failures. Using long long for LONGEST on the DECstation
464 causes 3 new FAILs in the testsuite and many heuristic fencepost
465 warnings. These are not investigated, but a first guess would be
466 that the BSDI problems are GCC bugs in long long support and the
467 latter are GDB bugs. */
469 #ifndef CC_HAS_LONG_LONG
470 # if defined (__GNUC__) && defined (FORCE_LONG_LONG)
471 # define CC_HAS_LONG_LONG 1
475 /* LONGEST should not be a typedef, because "unsigned LONGEST" needs to work.
476 CC_HAS_LONG_LONG is defined if the host compiler supports "long long"
477 variables and we wish to make use of that support. */
480 # ifdef CC_HAS_LONG_LONG
481 # define LONGEST long long
483 # define LONGEST long
487 #endif /* No BFD64 */
489 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
490 arguments to a function, number in a value history, register number, etc.)
491 where the value must not be larger than can fit in an int. */
493 extern int longest_to_int
PARAMS ((LONGEST
));
495 /* Assorted functions we can declare, now that const and volatile are
498 extern char *savestring
PARAMS ((const char *, int));
500 extern char *msavestring
PARAMS ((void *, const char *, int));
502 extern char *strsave
PARAMS ((const char *));
504 extern char *mstrsave
PARAMS ((void *, const char *));
506 extern PTR xmalloc
PARAMS ((long));
508 extern PTR xrealloc
PARAMS ((PTR
, long));
510 extern PTR xmmalloc
PARAMS ((PTR
, long));
512 extern PTR xmrealloc
PARAMS ((PTR
, PTR
, long));
514 extern PTR mmalloc
PARAMS ((PTR
, long));
516 extern PTR mrealloc
PARAMS ((PTR
, PTR
, long));
518 extern void mfree
PARAMS ((PTR
, PTR
));
520 extern int mmcheck
PARAMS ((PTR
, void (*) (void)));
522 extern int mmtrace
PARAMS ((void));
524 extern int parse_escape
PARAMS ((char **));
526 extern const char * const reg_names
[];
528 /* Message to be printed before the error message, when an error occurs. */
530 extern char *error_pre_print
;
532 /* Message to be printed before the warning message, when a warning occurs. */
534 extern char *warning_pre_print
;
536 extern NORETURN
void error () ATTR_NORETURN
;
538 extern void error_begin
PARAMS ((void));
540 extern NORETURN
void fatal () ATTR_NORETURN
;
542 extern NORETURN
void exit
PARAMS ((int)) ATTR_NORETURN
; /* 4.10.4.3 */
544 extern NORETURN
void nomem
PARAMS ((long)) ATTR_NORETURN
;
546 /* Reasons for calling return_to_top_level. */
548 /* User interrupt. */
551 /* Any other error. */
555 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
556 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
557 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
558 typedef int return_mask
;
561 return_to_top_level
PARAMS ((enum return_reason
)) ATTR_NORETURN
;
564 catch_errors
PARAMS ((int (*) (char *), void *, char *, return_mask
));
566 extern void warning_setup
PARAMS ((void));
568 extern void warning ();
570 /* Global functions from other, non-gdb GNU thingies.
571 Libiberty thingies are no longer declared here. We include libiberty.h
574 extern char *getenv
PARAMS ((const char *));
576 /* From other system libraries */
578 #ifndef PSIGNAL_IN_SIGNAL_H
579 extern void psignal
PARAMS ((unsigned, const char *));
582 /* For now, we can't include <stdlib.h> because it conflicts with
583 "../include/getopt.h". (FIXME)
585 However, if a function is defined in the ANSI C standard and a prototype
586 for that function is defined and visible in any header file in an ANSI
587 conforming environment, then that prototype must match the definition in
588 the ANSI standard. So we can just duplicate them here without conflict,
589 since they must be the same in all conforming ANSI environments. If
590 these cause problems, then the environment is not ANSI conformant. */
596 extern int fclose
PARAMS ((GDB_FILE
*stream
)); /* 4.9.5.1 */
598 extern void perror
PARAMS ((const char *)); /* 4.9.10.4 */
600 extern double atof
PARAMS ((const char *nptr
)); /* 4.10.1.1 */
602 extern int atoi
PARAMS ((const char *)); /* 4.10.1.2 */
604 #ifndef MALLOC_INCOMPATIBLE
606 extern PTR malloc
PARAMS ((size_t size
)); /* 4.10.3.3 */
608 extern PTR realloc
PARAMS ((void *ptr
, size_t size
)); /* 4.10.3.4 */
610 extern void free
PARAMS ((void *)); /* 4.10.3.2 */
612 #endif /* MALLOC_INCOMPATIBLE */
615 qsort
PARAMS ((void *base
, size_t nmemb
, /* 4.10.5.2 */
617 int (*compar
)(const void *, const void *)));
619 #ifndef MEM_FNS_DECLARED /* Some non-ANSI use void *, not char *. */
620 extern PTR memcpy
PARAMS ((void *, const void *, size_t)); /* 4.11.2.1 */
622 extern int memcmp
PARAMS ((const void *, const void *, size_t)); /* 4.11.4.1 */
625 extern char *strchr
PARAMS ((const char *, int)); /* 4.11.5.2 */
627 extern char *strrchr
PARAMS ((const char *, int)); /* 4.11.5.5 */
629 extern char *strstr
PARAMS ((const char *, const char *)); /* 4.11.5.7 */
631 extern char *strtok
PARAMS ((char *, const char *)); /* 4.11.5.8 */
633 #ifndef MEM_FNS_DECLARED /* Some non-ANSI use void *, not char *. */
634 extern PTR memset
PARAMS ((void *, int, size_t)); /* 4.11.6.1 */
637 extern char *strerror
PARAMS ((int)); /* 4.11.6.2 */
639 /* Various possibilities for alloca. */
642 # define alloca __builtin_alloca
643 # else /* Not GNU C */
645 # include <alloca.h> /* NOTE: Doesn't declare alloca() */
648 /* We need to be careful not to declare this in a way which conflicts with
649 bison. Bison never declares it as char *, but under various circumstances
650 (like __hpux) we need to use void *. */
651 # if defined (__STDC__) || defined (__hpux)
652 extern void *alloca ();
653 # else /* Don't use void *. */
654 extern char *alloca ();
655 # endif /* Don't use void *. */
656 # endif /* Not GNU C */
657 #endif /* alloca not defined */
659 /* TARGET_BYTE_ORDER and HOST_BYTE_ORDER must be defined to one of these. */
661 #if !defined (BIG_ENDIAN)
662 #define BIG_ENDIAN 4321
665 #if !defined (LITTLE_ENDIAN)
666 #define LITTLE_ENDIAN 1234
669 /* Target-system-dependent parameters for GDB. */
671 /* Target machine definition. This will be a symlink to one of the
672 tm-*.h files, built by the `configure' script. */
676 /* Number of bits in a char or unsigned char for the target machine.
677 Just like CHAR_BIT in <limits.h> but describes the target machine. */
678 #if !defined (TARGET_CHAR_BIT)
679 #define TARGET_CHAR_BIT 8
682 /* Number of bits in a short or unsigned short for the target machine. */
683 #if !defined (TARGET_SHORT_BIT)
684 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
687 /* Number of bits in an int or unsigned int for the target machine. */
688 #if !defined (TARGET_INT_BIT)
689 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
692 /* Number of bits in a long or unsigned long for the target machine. */
693 #if !defined (TARGET_LONG_BIT)
694 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
697 /* Number of bits in a long long or unsigned long long for the target machine. */
698 #if !defined (TARGET_LONG_LONG_BIT)
699 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
702 /* Number of bits in a float for the target machine. */
703 #if !defined (TARGET_FLOAT_BIT)
704 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
707 /* Number of bits in a double for the target machine. */
708 #if !defined (TARGET_DOUBLE_BIT)
709 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
712 /* Number of bits in a long double for the target machine. */
713 #if !defined (TARGET_LONG_DOUBLE_BIT)
714 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
717 /* Number of bits in a "complex" for the target machine. */
718 #if !defined (TARGET_COMPLEX_BIT)
719 #define TARGET_COMPLEX_BIT (2 * TARGET_FLOAT_BIT)
722 /* Number of bits in a "double complex" for the target machine. */
723 #if !defined (TARGET_DOUBLE_COMPLEX_BIT)
724 #define TARGET_DOUBLE_COMPLEX_BIT (2 * TARGET_DOUBLE_BIT)
727 /* Number of bits in a pointer for the target machine */
728 #if !defined (TARGET_PTR_BIT)
729 #define TARGET_PTR_BIT TARGET_INT_BIT
732 /* If we picked up a copy of CHAR_BIT from a configuration file
733 (which may get it by including <limits.h>) then use it to set
734 the number of bits in a host char. If not, use the same size
737 #if defined (CHAR_BIT)
738 #define HOST_CHAR_BIT CHAR_BIT
740 #define HOST_CHAR_BIT TARGET_CHAR_BIT
743 /* The bit byte-order has to do just with numbering of bits in
744 debugging symbols and such. Conceptually, it's quite separate
745 from byte/word byte order. */
747 #if !defined (BITS_BIG_ENDIAN)
748 #if TARGET_BYTE_ORDER == BIG_ENDIAN
749 #define BITS_BIG_ENDIAN 1
750 #endif /* Big endian. */
752 #if TARGET_BYTE_ORDER == LITTLE_ENDIAN
753 #define BITS_BIG_ENDIAN 0
754 #endif /* Little endian. */
755 #endif /* BITS_BIG_ENDIAN not defined. */
759 extern LONGEST extract_signed_integer
PARAMS ((void *, int));
761 extern unsigned LONGEST extract_unsigned_integer
PARAMS ((void *, int));
763 extern CORE_ADDR extract_address
PARAMS ((void *, int));
765 extern void store_signed_integer
PARAMS ((void *, int, LONGEST
));
767 extern void store_unsigned_integer
PARAMS ((void *, int, unsigned LONGEST
));
769 extern void store_address
PARAMS ((void *, int, CORE_ADDR
));
771 extern double extract_floating
PARAMS ((void *, int));
773 extern void store_floating
PARAMS ((void *, int, double));
775 /* On some machines there are bits in addresses which are not really
776 part of the address, but are used by the kernel, the hardware, etc.
777 for special purposes. ADDR_BITS_REMOVE takes out any such bits
778 so we get a "real" address such as one would find in a symbol
779 table. This is used only for addresses of instructions, and even then
780 I'm not sure it's used in all contexts. It exists to deal with there
781 being a few stray bits in the PC which would mislead us, not as some sort
782 of generic thing to handle alignment or segmentation (it's possible it
783 should be in TARGET_READ_PC instead). */
784 #if !defined (ADDR_BITS_REMOVE)
785 #define ADDR_BITS_REMOVE(addr) (addr)
786 #endif /* No ADDR_BITS_REMOVE. */
790 extern CORE_ADDR push_bytes
PARAMS ((CORE_ADDR
, char *, int));
792 extern CORE_ADDR push_word
PARAMS ((CORE_ADDR
, unsigned LONGEST
));
794 /* Some parts of gdb might be considered optional, in the sense that they
795 are not essential for being able to build a working, usable debugger
796 for a specific environment. For example, the maintenance commands
797 are there for the benefit of gdb maintainers. As another example,
798 some environments really don't need gdb's that are able to read N
799 different object file formats. In order to make it possible (but
800 not necessarily recommended) to build "stripped down" versions of
801 gdb, the following defines control selective compilation of those
802 parts of gdb which can be safely left out when necessary. Note that
803 the default is to include everything. */
805 #ifndef MAINTENANCE_CMDS
806 #define MAINTENANCE_CMDS 1
809 /* Hooks for alternate command interfaces. */
816 extern void (*init_ui_hook
) PARAMS ((void));
817 extern void (*command_loop_hook
) PARAMS ((void));
818 extern void (*fputs_unfiltered_hook
) PARAMS ((const char *linebuffer
));
819 extern void (*print_frame_info_listing_hook
) PARAMS ((struct symtab
*s
, int line
,
820 int stopline
, int noerror
));
821 extern int (*query_hook
) PARAMS (());
822 extern void (*flush_hook
) PARAMS ((FILE *stream
));
823 extern void (*create_breakpoint_hook
) PARAMS ((struct breakpoint
*b
));
824 extern void (*delete_breakpoint_hook
) PARAMS ((struct breakpoint
*bpt
));
825 extern void (*enable_breakpoint_hook
) PARAMS ((struct breakpoint
*bpt
));
826 extern void (*disable_breakpoint_hook
) PARAMS ((struct breakpoint
*bpt
));
828 /* Inhibit window interface if non-zero. */
830 extern int no_windows
;
832 #endif /* !defined (DEFS_H) */