1 /* *INDENT-OFF* */ /* ATTR_FORMAT confuses indent, avoid running it for now */
2 /* Basic, host-specific, and target-specific definitions for GDB.
3 Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
4 1997, 1998, 1999, 2000, 2001, 2002
5 Free Software Foundation, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
27 #include "config.h" /* Generated by configure */
29 #include <errno.h> /* System call error return status */
35 #include <sys/types.h> /* for size_t */
42 /* For ``enum target_signal''. */
43 #include "gdb/signals.h"
45 /* Just in case they're not defined in stdio.h. */
54 /* First include ansidecl.h so we can use the various macro definitions
55 here and in all subsequent file inclusions. */
59 #include <stdarg.h> /* for va_list */
61 #include "libiberty.h"
65 /* For BFD64 and bfd_vma. */
69 /* The target is partially multi-arched. Both "tm.h" and the
70 multi-arch vector provide definitions. "tm.h" normally overrides
71 the multi-arch vector (but there are a few exceptions). */
73 #define GDB_MULTI_ARCH_PARTIAL 1
75 /* The target is partially multi-arched. Both the multi-arch vector
76 and "tm.h" provide definitions. "tm.h" cannot override a definition
77 provided by the multi-arch vector. It is detected as a compilation
80 This setting is only useful during a multi-arch conversion. */
82 #define GDB_MULTI_ARCH_TM 2
84 /* The target is pure multi-arch. The MULTI-ARCH vector provides all
85 definitions. "tm.h" is linked to an empty file. */
87 #define GDB_MULTI_ARCH_PURE 3
91 /* An address in the program being debugged. Host byte order. Rather
92 than duplicate all the logic in BFD which figures out what type
93 this is (long, long long, etc.) and whether it needs to be 64
94 bits (the host/target interactions are subtle), we just use
97 typedef bfd_vma CORE_ADDR
;
99 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
105 #define LONGEST BFD_HOST_64_BIT
106 #define ULONGEST BFD_HOST_U_64_BIT
110 #ifdef CC_HAS_LONG_LONG
111 #define LONGEST long long
112 #define ULONGEST unsigned long long
114 #ifdef BFD_HOST_64_BIT
115 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
116 (e.g. i386-windows) so try it. */
117 #define LONGEST BFD_HOST_64_BIT
118 #define ULONGEST BFD_HOST_U_64_BIT
121 #define ULONGEST unsigned long
125 #endif /* No BFD64 */
127 #endif /* ! LONGEST */
130 #define min(a, b) ((a) < (b) ? (a) : (b))
133 #define max(a, b) ((a) > (b) ? (a) : (b))
136 /* Macros to do string compares.
138 NOTE: cagney/2000-03-14:
140 While old code can continue to refer to these macros, new code is
141 probably better off using strcmp() directly vis: ``strcmp() == 0''
142 and ``strcmp() != 0''.
144 This is because modern compilers can directly inline strcmp()
145 making the original justification for these macros - avoid function
146 call overhead by pre-testing the first characters
147 (``*X==*Y?...:0'') - redundant.
149 ``Even if [...] testing the first character does have a modest
150 performance improvement, I'd rather that whenever a performance
151 issue is found that we spend the effort on algorithmic
152 optimizations than micro-optimizing.'' J.T. */
154 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
155 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
157 /* The character GNU C++ uses to build identifiers that must be unique from
158 the program's identifiers (such as $this and $$vptr). */
159 #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
161 /* Check if a character is one of the commonly used C++ marker characters. */
162 extern int is_cplus_marker (int);
164 /* use tui interface if non-zero */
165 extern int tui_version
;
167 /* enable xdb commands if set */
168 extern int xdb_commands
;
170 /* enable dbx commands if set */
171 extern int dbx_commands
;
173 extern int quit_flag
;
174 extern int immediate_quit
;
175 extern int sevenbit_strings
;
177 extern void quit (void);
179 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
180 benefits of having a ``QUIT'' macro rather than a function are
181 marginal. If the overhead of a QUIT function call is proving
182 significant then its calling frequency should probably be reduced
183 [kingdon]. A profile analyzing the current situtation is
187 /* do twice to force compiler warning */
188 #define QUIT_FIXME "FIXME"
189 #define QUIT_FIXME "ignoring redefinition of QUIT"
192 if (quit_flag) quit (); \
193 if (interactive_hook) interactive_hook (); \
198 /* Languages represented in the symbol table and elsewhere.
199 This should probably be in language.h, but since enum's can't
200 be forward declared to satisfy opaque references before their
201 actual definition, needs to be here. */
205 language_unknown
, /* Language not known */
206 language_auto
, /* Placeholder for automatic setting */
208 language_cplus
, /* C++ */
209 language_java
, /* Java */
210 language_chill
, /* Chill */
211 language_fortran
, /* Fortran */
212 language_m2
, /* Modula-2 */
213 language_asm
, /* Assembly language */
214 language_scm
, /* Scheme / Guile */
215 language_pascal
/* Pascal */
222 unspecified_precision
225 /* A generic, not quite boolean, enumeration. */
233 /* the cleanup list records things that have to be undone
234 if an error happens (descriptors to be closed, memory to be freed, etc.)
235 Each link in the chain records a function to call and an
238 Use make_cleanup to add an element to the cleanup chain.
239 Use do_cleanups to do all cleanup actions back to a given
240 point in the chain. Use discard_cleanups to remove cleanups
241 from the chain back to a given point, not doing them. */
245 struct cleanup
*next
;
246 void (*function
) (PTR
);
251 /* The ability to declare that a function never returns is useful, but
252 not really required to compile GDB successfully, so the NORETURN and
253 ATTR_NORETURN macros normally expand into nothing. */
255 /* If compiling with older versions of GCC, a function may be declared
256 "volatile" to indicate that it does not return. */
259 #if defined(__GNUC__) \
260 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
261 #define NORETURN volatile
263 #define NORETURN /* nothing */
267 /* GCC 2.5 and later versions define a function attribute "noreturn",
268 which is the preferred way to declare that a function never returns.
269 However GCC 2.7 appears to be the first version in which this fully
270 works everywhere we use it. */
272 #ifndef ATTR_NORETURN
273 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
274 #define ATTR_NORETURN __attribute__ ((noreturn))
276 #define ATTR_NORETURN /* nothing */
281 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
282 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
284 #define ATTR_FORMAT(type, x, y) /* nothing */
288 /* Needed for various prototypes */
293 /* From blockframe.c */
295 extern int inside_entry_func (CORE_ADDR
);
297 extern int inside_entry_file (CORE_ADDR addr
);
299 extern int inside_main_func (CORE_ADDR pc
);
301 /* From ch-lang.c, for the moment. (FIXME) */
303 extern char *chill_demangle (const char *);
307 extern void initialize_utils (void);
309 extern void notice_quit (void);
311 extern int strcmp_iw (const char *, const char *);
313 extern int subset_compare (char *, char *);
315 extern char *safe_strerror (int);
317 extern void init_malloc (void *);
319 extern void request_quit (int);
321 extern void do_cleanups (struct cleanup
*);
322 extern void do_final_cleanups (struct cleanup
*);
323 extern void do_my_cleanups (struct cleanup
**, struct cleanup
*);
324 extern void do_run_cleanups (struct cleanup
*);
325 extern void do_exec_cleanups (struct cleanup
*);
326 extern void do_exec_error_cleanups (struct cleanup
*);
328 extern void discard_cleanups (struct cleanup
*);
329 extern void discard_final_cleanups (struct cleanup
*);
330 extern void discard_exec_error_cleanups (struct cleanup
*);
331 extern void discard_my_cleanups (struct cleanup
**, struct cleanup
*);
333 /* NOTE: cagney/2000-03-04: This typedef is strictly for the
334 make_cleanup function declarations below. Do not use this typedef
335 as a cast when passing functions into the make_cleanup() code.
336 Instead either use a bounce function or add a wrapper function.
337 Calling a f(char*) function with f(void*) is non-portable. */
338 typedef void (make_cleanup_ftype
) (void *);
340 extern struct cleanup
*make_cleanup (make_cleanup_ftype
*, void *);
342 extern struct cleanup
*make_cleanup_freeargv (char **);
345 extern struct cleanup
*make_cleanup_ui_file_delete (struct ui_file
*);
347 extern struct cleanup
*make_cleanup_close (int fd
);
349 extern struct cleanup
*make_cleanup_bfd_close (bfd
*abfd
);
351 extern struct cleanup
*make_final_cleanup (make_cleanup_ftype
*, void *);
353 extern struct cleanup
*make_my_cleanup (struct cleanup
**,
354 make_cleanup_ftype
*, void *);
356 extern struct cleanup
*make_run_cleanup (make_cleanup_ftype
*, void *);
358 extern struct cleanup
*make_exec_cleanup (make_cleanup_ftype
*, void *);
359 extern struct cleanup
*make_exec_error_cleanup (make_cleanup_ftype
*, void *);
361 extern struct cleanup
*save_cleanups (void);
362 extern struct cleanup
*save_final_cleanups (void);
363 extern struct cleanup
*save_my_cleanups (struct cleanup
**);
365 extern void restore_cleanups (struct cleanup
*);
366 extern void restore_final_cleanups (struct cleanup
*);
367 extern void restore_my_cleanups (struct cleanup
**, struct cleanup
*);
369 extern void free_current_contents (void *);
371 extern void null_cleanup (void *);
373 extern int myread (int, char *, int);
375 extern int query (const char *, ...) ATTR_FORMAT (printf
, 1, 2);
377 extern void init_page_info (void);
379 extern CORE_ADDR
host_pointer_to_address (void *ptr
);
380 extern void *address_to_host_pointer (CORE_ADDR addr
);
382 extern char *gdb_realpath (const char *);
383 extern char *xfullpath (const char *);
385 /* From demangle.c */
387 extern void set_demangling_style (char *);
392 typedef int (use_struct_convention_fn
) (int gcc_p
, struct type
* value_type
);
393 extern use_struct_convention_fn generic_use_struct_convention
;
396 /* Annotation stuff. */
398 extern int annotation_level
; /* in stack.c */
400 extern void begin_line (void);
402 extern void wrap_here (char *);
404 extern void reinitialize_more_filter (void);
407 extern struct ui_file
*gdb_stdout
;
408 /* Serious error notifications */
409 extern struct ui_file
*gdb_stderr
;
410 /* Log/debug/trace messages that should bypass normal stdout/stderr
411 filtering. For momement, always call this stream using
412 *_unfiltered. In the very near future that restriction shall be
413 removed - either call shall be unfiltered. (cagney 1999-06-13). */
414 extern struct ui_file
*gdb_stdlog
;
415 /* Target output that should bypass normal stdout/stderr filtering.
416 For momement, always call this stream using *_unfiltered. In the
417 very near future that restriction shall be removed - either call
418 shall be unfiltered. (cagney 1999-07-02). */
419 extern struct ui_file
*gdb_stdtarg
;
427 /* More generic printf like operations. Filtered versions may return
428 non-locally on error. */
430 extern void fputs_filtered (const char *, struct ui_file
*);
432 extern void fputs_unfiltered (const char *, struct ui_file
*);
434 extern int fputc_filtered (int c
, struct ui_file
*);
436 extern int fputc_unfiltered (int c
, struct ui_file
*);
438 extern int putchar_filtered (int c
);
440 extern int putchar_unfiltered (int c
);
442 extern void puts_filtered (const char *);
444 extern void puts_unfiltered (const char *);
446 extern void puts_debug (char *prefix
, char *string
, char *suffix
);
448 extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf
, 1, 0);
450 extern void vfprintf_filtered (struct ui_file
*, const char *, va_list) ATTR_FORMAT (printf
, 2, 0);
452 extern void fprintf_filtered (struct ui_file
*, const char *, ...) ATTR_FORMAT (printf
, 2, 3);
454 extern void fprintfi_filtered (int, struct ui_file
*, const char *, ...) ATTR_FORMAT (printf
, 3, 4);
456 extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf
, 1, 2);
458 extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf
, 2, 3);
460 extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf
, 1, 0);
462 extern void vfprintf_unfiltered (struct ui_file
*, const char *, va_list) ATTR_FORMAT (printf
, 2, 0);
464 extern void fprintf_unfiltered (struct ui_file
*, const char *, ...) ATTR_FORMAT (printf
, 2, 3);
466 extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf
, 1, 2);
468 extern void print_spaces (int, struct ui_file
*);
470 extern void print_spaces_filtered (int, struct ui_file
*);
472 extern char *n_spaces (int);
474 extern void fputstr_filtered (const char *str
, int quotr
, struct ui_file
* stream
);
476 extern void fputstr_unfiltered (const char *str
, int quotr
, struct ui_file
* stream
);
478 extern void fputstrn_unfiltered (const char *str
, int n
, int quotr
, struct ui_file
* stream
);
480 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
481 extern void gdb_print_host_address (void *addr
, struct ui_file
*stream
);
483 /* Convert a CORE_ADDR into a HEX string. paddr() is like %08lx.
484 paddr_nz() is like %lx. paddr_u() is like %lu. paddr_width() is
486 extern int strlen_paddr (void);
487 extern char *paddr (CORE_ADDR addr
);
488 extern char *paddr_nz (CORE_ADDR addr
);
489 extern char *paddr_u (CORE_ADDR addr
);
490 extern char *paddr_d (LONGEST addr
);
492 extern char *phex (ULONGEST l
, int sizeof_l
);
493 extern char *phex_nz (ULONGEST l
, int sizeof_l
);
495 /* Like paddr() only print/scan raw CORE_ADDR. The output from
496 core_addr_to_string() can be passed direct to
497 string_to_core_addr(). */
498 extern const char *core_addr_to_string (const CORE_ADDR addr
);
499 extern const char *core_addr_to_string_nz (const CORE_ADDR addr
);
500 extern CORE_ADDR
string_to_core_addr (const char *my_string
);
502 extern void fprintf_symbol_filtered (struct ui_file
*, char *,
505 extern NORETURN
void perror_with_name (const char *) ATTR_NORETURN
;
507 extern void print_sys_errmsg (const char *, int);
509 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
510 "const char *" in unistd.h, so we can't declare the argument
513 extern char *re_comp (const char *);
517 extern void symbol_file_command (char *, int);
519 /* Remote targets may wish to use this as their load function. */
520 extern void generic_load (char *name
, int from_tty
);
522 /* Summarise a download */
523 extern void print_transfer_performance (struct ui_file
*stream
,
524 unsigned long data_count
,
525 unsigned long write_count
,
526 unsigned long time_count
);
530 typedef void initialize_file_ftype (void);
532 extern char *skip_quoted (char *);
534 extern char *gdb_readline (char *);
536 extern char *command_line_input (char *, int, char *);
538 extern void print_prompt (void);
540 extern int input_from_terminal_p (void);
542 extern int info_verbose
;
544 /* From printcmd.c */
546 extern void set_next_address (CORE_ADDR
);
548 extern void print_address_symbolic (CORE_ADDR
, struct ui_file
*, int,
551 extern int build_address_symbolic (CORE_ADDR addr
,
559 extern void print_address_numeric (CORE_ADDR
, int, struct ui_file
*);
561 extern void print_address (CORE_ADDR
, struct ui_file
*);
565 extern int openp (const char *, int, const char *, int, int, char **);
567 extern int source_full_path_of (char *, char **);
569 extern void mod_path (char *, char **);
571 extern void directory_command (char *, int);
573 extern void init_source_path (void);
575 extern char *symtab_to_filename (struct symtab
*);
579 extern void exec_set_section_offsets (bfd_signed_vma text_off
,
580 bfd_signed_vma data_off
,
581 bfd_signed_vma bss_off
);
583 /* Take over the 'find_mapped_memory' vector from exec.c. */
584 extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR
,
590 /* Possible lvalue types. Like enum language, this should be in
591 value.h, but needs to be here for the same reason. */
597 /* In memory. Could be a saved register. */
601 /* In a gdb internal variable. */
603 /* Part of a gdb internal variable (structure field). */
604 lval_internalvar_component
,
605 /* In a register series in a frame not the current one, which may have been
606 partially saved or saved in different places (otherwise would be
607 lval_register or lval_memory). */
608 lval_reg_frame_relative
613 /* From readline (but not in any readline .h files). */
615 extern char *tilde_expand (char *);
617 /* Control types for commands */
619 enum misc_command_type
627 enum command_control_type
637 /* Structure for saved commands lines
638 (for breakpoints, defined commands, etc). */
642 struct command_line
*next
;
644 enum command_control_type control_type
;
646 struct command_line
**body_list
;
649 extern struct command_line
*read_command_lines (char *, int);
651 extern void free_command_lines (struct command_line
**);
653 /* To continue the execution commands when running gdb asynchronously.
654 A continuation structure contains a pointer to a function to be called
655 to finish the command, once the target has stopped. Such mechanism is
656 used bt the finish and until commands, and in the remote protocol
657 when opening an extended-remote connection. */
659 struct continuation_arg
661 struct continuation_arg
*next
;
662 union continuation_data
{
671 void (*continuation_hook
) (struct continuation_arg
*);
672 struct continuation_arg
*arg_list
;
673 struct continuation
*next
;
677 extern struct continuation
*cmd_continuation
;
678 /* Used only by the step_1 function. */
679 extern struct continuation
*intermediate_continuation
;
682 extern void add_continuation (void (*)(struct continuation_arg
*),
683 struct continuation_arg
*);
684 extern void do_all_continuations (void);
685 extern void discard_all_continuations (void);
687 extern void add_intermediate_continuation (void (*)(struct continuation_arg
*),
688 struct continuation_arg
*);
689 extern void do_all_intermediate_continuations (void);
690 extern void discard_all_intermediate_continuations (void);
692 /* String containing the current directory (what getwd would return). */
694 extern char *current_directory
;
696 /* Default radixes for input and output. Only some values supported. */
697 extern unsigned input_radix
;
698 extern unsigned output_radix
;
700 /* Possibilities for prettyprint parameters to routines which print
701 things. Like enum language, this should be in value.h, but needs
702 to be here for the same reason. FIXME: If we can eliminate this
703 as an arg to LA_VAL_PRINT, then we can probably move it back to
708 Val_no_prettyprint
= 0,
710 /* Use the default setting which the user has specified. */
714 /* The ptid struct is a collection of the various "ids" necessary
715 for identifying the inferior. This consists of the process id
716 (pid), thread id (tid), and other fields necessary for uniquely
717 identifying the inferior process/thread being debugged. When
718 manipulating ptids, the constructors, accessors, and predicate
719 declared in inferior.h should be used. These are as follows:
721 ptid_build - Make a new ptid from a pid, lwp, and tid.
722 pid_to_ptid - Make a new ptid from just a pid.
723 ptid_get_pid - Fetch the pid component of a ptid.
724 ptid_get_lwp - Fetch the lwp component of a ptid.
725 ptid_get_tid - Fetch the tid component of a ptid.
726 ptid_equal - Test to see if two ptids are equal.
728 Please do NOT access the struct ptid members directly (except, of
729 course, in the implementation of the above ptid manipulation
737 /* Lightweight process id */
744 typedef struct ptid ptid_t
;
748 /* Optional host machine definition. Pure autoconf targets will not
749 need a "xm.h" file. This will be a symlink to one of the xm-*.h
750 files, built by the `configure' script. */
756 /* Optional native machine support. Non-native (and possibly pure
757 multi-arch) targets do not need a "nm.h" file. This will be a
758 symlink to one of the nm-*.h files, built by the `configure'
765 /* Optional target machine definition. Pure multi-arch configurations
766 do not need a "tm.h" file. This will be a symlink to one of the
767 tm-*.h files, built by the `configure' script. */
773 /* GDB_MULTI_ARCH is normally set by configure.in using information
774 from configure.tgt or the config/%/%.mt Makefile fragment. Since
775 some targets have defined it in their "tm.h" file, delay providing
776 a default definition until after "tm.h" has been included.. */
778 #ifndef GDB_MULTI_ARCH
779 #define GDB_MULTI_ARCH 0
783 /* If the xm.h file did not define the mode string used to open the
784 files, assume that binary files are opened the same way as text
787 #include "fopen-same.h"
790 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
791 FIXME: Assumes 2's complement arithmetic */
793 #if !defined (UINT_MAX)
794 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
797 #if !defined (INT_MAX)
798 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
801 #if !defined (INT_MIN)
802 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
805 #if !defined (ULONG_MAX)
806 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
809 #if !defined (LONG_MAX)
810 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
813 #if !defined (ULONGEST_MAX)
814 #define ULONGEST_MAX (~(ULONGEST)0) /* 0xFFFFFFFFFFFFFFFF for 64-bits */
817 #if !defined (LONGEST_MAX) /* 0x7FFFFFFFFFFFFFFF for 64-bits */
818 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
821 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
822 arguments to a function, number in a value history, register number, etc.)
823 where the value must not be larger than can fit in an int. */
825 extern int longest_to_int (LONGEST
);
827 /* Assorted functions we can declare, now that const and volatile are
830 extern char *savestring (const char *, size_t);
832 extern char *msavestring (void *, const char *, size_t);
834 extern char *mstrsave (void *, const char *);
836 /* Robust versions of same. Throw an internal error when no memory,
837 guard against stray NULL arguments. */
838 extern void *xmmalloc (void *md
, size_t size
);
839 extern void *xmrealloc (void *md
, void *ptr
, size_t size
);
840 extern void *xmcalloc (void *md
, size_t number
, size_t size
);
841 extern void xmfree (void *md
, void *ptr
);
843 /* xmalloc(), xrealloc() and xcalloc() have already been declared in
845 extern void xfree (void *);
847 /* Utility macros to allocate typed memory. Avoids errors like
848 ``struct foo *foo = xmalloc (sizeof bar)'' and ``struct foo *foo =
849 (struct foo *) xmalloc (sizeof bar)''. */
850 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
851 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE)))
853 /* Like asprintf/vasprintf but get an internal_error if the call
855 extern void xasprintf (char **ret
, const char *format
, ...) ATTR_FORMAT (printf
, 2, 3);
856 extern void xvasprintf (char **ret
, const char *format
, va_list ap
);
858 extern int parse_escape (char **);
860 /* Message to be printed before the error message, when an error occurs. */
862 extern char *error_pre_print
;
864 /* Message to be printed before the error message, when an error occurs. */
866 extern char *quit_pre_print
;
868 /* Message to be printed before the warning message, when a warning occurs. */
870 extern char *warning_pre_print
;
872 extern NORETURN
void verror (const char *fmt
, va_list ap
) ATTR_NORETURN
;
874 extern NORETURN
void error (const char *fmt
, ...) ATTR_NORETURN
ATTR_FORMAT (printf
, 1, 2);
876 extern NORETURN
void error_stream (struct ui_file
*) ATTR_NORETURN
;
878 /* Returns a freshly allocate buffer containing the last error
880 extern char *error_last_message (void);
882 extern NORETURN
void internal_verror (const char *file
, int line
,
883 const char *, va_list ap
) ATTR_NORETURN
;
885 extern NORETURN
void internal_error (const char *file
, int line
,
886 const char *, ...) ATTR_NORETURN
ATTR_FORMAT (printf
, 3, 4);
888 extern NORETURN
void nomem (long) ATTR_NORETURN
;
890 /* Reasons for calling throw_exception(). NOTE: all reason values
891 must be less than zero. enum value 0 is reserved for internal use
892 as the return value from an initial setjmp(). The function
893 catch_exceptions() reserves values >= 0 as legal results from its
898 /* User interrupt. */
900 /* Any other error. */
904 #define ALL_CLEANUPS ((struct cleanup *)0)
906 #define RETURN_MASK(reason) (1 << (int)(-reason))
907 #define RETURN_MASK_QUIT RETURN_MASK (RETURN_QUIT)
908 #define RETURN_MASK_ERROR RETURN_MASK (RETURN_ERROR)
909 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
910 typedef int return_mask
;
912 /* Throw an exception of type RETURN_REASON. Will execute a LONG JUMP
913 to the inner most containing exception handler established using
914 catch_exceptions() (or the legacy catch_errors()).
916 Code normally throws an exception using error() et.al. For various
917 reaons, GDB also contains code that throws an exception directly.
918 For instance, the remote*.c targets contain CNTRL-C signal handlers
919 that propogate the QUIT event up the exception chain. ``This could
920 be a good thing or a dangerous thing.'' -- the Existential Wombat. */
922 extern NORETURN
void throw_exception (enum return_reason
) ATTR_NORETURN
;
924 /* Call FUNC(UIOUT, FUNC_ARGS) but wrapped within an exception
925 handler. If an exception (enum return_reason) is thrown using
926 throw_exception() than all cleanups installed since
927 catch_exceptions() was entered are invoked, the (-ve) exception
928 value is then returned by catch_exceptions. If FUNC() returns
929 normally (with a postive or zero return value) then that value is
930 returned by catch_exceptions(). It is an internal_error() for
931 FUNC() to return a negative value.
933 For the period of the FUNC() call: UIOUT is installed as the output
934 builder; ERRSTRING is installed as the error/quit message; and a
935 new cleanup_chain is established. The old values are restored
936 before catch_exceptions() returns.
938 FIXME; cagney/2001-08-13: The need to override the global UIOUT
939 builder variable should just go away.
941 This function superseeds catch_errors().
943 This function uses SETJMP() and LONGJUMP(). */
946 typedef int (catch_exceptions_ftype
) (struct ui_out
*ui_out
, void *args
);
947 extern int catch_exceptions (struct ui_out
*uiout
,
948 catch_exceptions_ftype
*func
, void *func_args
,
949 char *errstring
, return_mask mask
);
951 /* If CATCH_ERRORS_FTYPE throws an error, catch_errors() returns zero
952 otherwize the result from CATCH_ERRORS_FTYPE is returned. It is
953 probably useful for CATCH_ERRORS_FTYPE to always return a non-zero
954 value. It's unfortunate that, catch_errors() does not return an
955 indication of the exact exception that it caught - quit_flag might
958 This function is superseeded by catch_exceptions(). */
960 typedef int (catch_errors_ftype
) (PTR
);
961 extern int catch_errors (catch_errors_ftype
*, void *, char *, return_mask
);
963 /* Template to catch_errors() that wraps calls to command
966 typedef void (catch_command_errors_ftype
) (char *, int);
967 extern int catch_command_errors (catch_command_errors_ftype
*func
, char *command
, int from_tty
, return_mask
);
969 extern void warning (const char *, ...) ATTR_FORMAT (printf
, 1, 2);
971 extern void vwarning (const char *, va_list args
);
973 /* Global functions from other, non-gdb GNU thingies.
974 Libiberty thingies are no longer declared here. We include libiberty.h
977 #ifndef GETENV_PROVIDED
978 extern char *getenv (const char *);
981 /* From other system libraries */
991 #define min(a, b) ((a) < (b) ? (a) : (b))
994 #define max(a, b) ((a) > (b) ? (a) : (b))
998 /* We take the address of fclose later, but some stdio's forget
999 to declare this. We can't always declare it since there's
1000 no way to declare the parameters without upsetting some compiler
1003 #ifndef FCLOSE_PROVIDED
1004 extern int fclose (FILE *);
1008 extern double atof (const char *); /* X3.159-1989 4.10.1.1 */
1011 /* Various possibilities for alloca. */
1014 #define alloca __builtin_alloca
1015 #else /* Not GNU C */
1016 #ifdef HAVE_ALLOCA_H
1023 /* We need to be careful not to declare this in a way which conflicts with
1024 bison. Bison never declares it as char *, but under various circumstances
1025 (like __hpux) we need to use void *. */
1026 extern void *alloca ();
1027 #endif /* Not _AIX */
1028 #endif /* Not HAVE_ALLOCA_H */
1029 #endif /* Not GNU C */
1030 #endif /* alloca not defined */
1032 /* Dynamic target-system-dependent parameters for GDB. */
1033 #include "gdbarch.h"
1034 #if (GDB_MULTI_ARCH == 0)
1035 /* Multi-arch targets _should_ be including "arch-utils.h" directly
1036 into their *-tdep.c file. This is a prop to help old non-
1037 multi-arch targets to continue to compile. */
1038 #include "arch-utils.h"
1041 /* Static target-system-dependent parameters for GDB. */
1043 /* Number of bits in a char or unsigned char for the target machine.
1044 Just like CHAR_BIT in <limits.h> but describes the target machine. */
1045 #if !defined (TARGET_CHAR_BIT)
1046 #define TARGET_CHAR_BIT 8
1049 /* If we picked up a copy of CHAR_BIT from a configuration file
1050 (which may get it by including <limits.h>) then use it to set
1051 the number of bits in a host char. If not, use the same size
1054 #if defined (CHAR_BIT)
1055 #define HOST_CHAR_BIT CHAR_BIT
1057 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1060 /* The bit byte-order has to do just with numbering of bits in
1061 debugging symbols and such. Conceptually, it's quite separate
1062 from byte/word byte order. */
1064 #if !defined (BITS_BIG_ENDIAN)
1065 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
1070 extern LONGEST
extract_signed_integer (void *, int);
1072 extern ULONGEST
extract_unsigned_integer (void *, int);
1074 extern int extract_long_unsigned_integer (void *, int, LONGEST
*);
1076 extern CORE_ADDR
extract_address (void *, int);
1078 extern CORE_ADDR
extract_typed_address (void *buf
, struct type
*type
);
1080 extern void store_signed_integer (void *, int, LONGEST
);
1082 extern void store_unsigned_integer (void *, int, ULONGEST
);
1084 extern void store_address (void *, int, LONGEST
);
1086 extern void store_typed_address (void *buf
, struct type
*type
, CORE_ADDR addr
);
1091 extern CORE_ADDR
push_bytes (CORE_ADDR
, char *, int);
1093 extern CORE_ADDR
push_word (CORE_ADDR
, ULONGEST
);
1095 extern int watchdog
;
1097 /* Hooks for alternate command interfaces. */
1099 /* The name of the interpreter if specified on the command line. */
1100 extern char *interpreter_p
;
1102 /* If a given interpreter matches INTERPRETER_P then it should update
1103 command_loop_hook and init_ui_hook with the per-interpreter
1105 /* FIXME: command_loop_hook and init_ui_hook should be moved here. */
1107 struct target_waitstatus
;
1108 struct cmd_list_element
;
1110 /* Should the asynchronous variant of the interpreter (using the
1111 event-loop) be enabled? */
1112 extern int event_loop_p
;
1114 extern void (*init_ui_hook
) (char *argv0
);
1115 extern void (*command_loop_hook
) (void);
1116 extern void (*show_load_progress
) (const char *section
,
1117 unsigned long section_sent
,
1118 unsigned long section_size
,
1119 unsigned long total_sent
,
1120 unsigned long total_size
);
1121 extern void (*print_frame_info_listing_hook
) (struct symtab
* s
,
1122 int line
, int stopline
,
1124 extern struct frame_info
*parse_frame_specification (char *frame_exp
);
1125 extern int (*query_hook
) (const char *, va_list);
1126 extern void (*warning_hook
) (const char *, va_list);
1127 extern void (*flush_hook
) (struct ui_file
* stream
);
1128 extern void (*create_breakpoint_hook
) (struct breakpoint
* b
);
1129 extern void (*delete_breakpoint_hook
) (struct breakpoint
* bpt
);
1130 extern void (*modify_breakpoint_hook
) (struct breakpoint
* bpt
);
1131 extern void (*interactive_hook
) (void);
1132 extern void (*registers_changed_hook
) (void);
1133 extern void (*readline_begin_hook
) (char *,...);
1134 extern char *(*readline_hook
) (char *);
1135 extern void (*readline_end_hook
) (void);
1136 extern void (*register_changed_hook
) (int regno
);
1137 extern void (*memory_changed_hook
) (CORE_ADDR addr
, int len
);
1138 extern void (*context_hook
) (int);
1139 extern ptid_t (*target_wait_hook
) (ptid_t ptid
,
1140 struct target_waitstatus
* status
);
1142 extern void (*attach_hook
) (void);
1143 extern void (*detach_hook
) (void);
1144 extern void (*call_command_hook
) (struct cmd_list_element
* c
,
1145 char *cmd
, int from_tty
);
1147 extern void (*set_hook
) (struct cmd_list_element
* c
);
1149 extern NORETURN
void (*error_hook
) (void) ATTR_NORETURN
;
1151 extern void (*error_begin_hook
) (void);
1153 extern int (*ui_load_progress_hook
) (const char *section
, unsigned long num
);
1156 /* Inhibit window interface if non-zero. */
1158 extern int use_windows
;
1160 /* Symbolic definitions of filename-related things. */
1161 /* FIXME, this doesn't work very well if host and executable
1162 filesystems conventions are different. */
1164 #ifndef DIRNAME_SEPARATOR
1165 #define DIRNAME_SEPARATOR ':'
1168 #ifndef SLASH_STRING
1169 #define SLASH_STRING "/"
1174 # define GLOBAL_CURDIR
1177 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
1178 The name ``TIDGET'' is a historical accident. Many uses of TIDGET
1179 in the code actually refer to a lightweight process id, i.e,
1180 something that can be considered a process id in its own right for
1181 certain purposes. */
1184 #define PIDGET(PTID) (ptid_get_pid (PTID))
1185 #define TIDGET(PTID) (ptid_get_lwp (PTID))
1186 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
1189 /* Define well known filenos if the system does not define them. */
1190 #ifndef STDIN_FILENO
1191 #define STDIN_FILENO 0
1193 #ifndef STDOUT_FILENO
1194 #define STDOUT_FILENO 1
1196 #ifndef STDERR_FILENO
1197 #define STDERR_FILENO 2
1200 /* If this definition isn't overridden by the header files, assume
1201 that isatty and fileno exist on this system. */
1203 #define ISATTY(FP) (isatty (fileno (FP)))
1206 #endif /* #ifndef DEFS_H */