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 /* the cleanup list records things that have to be undone
226 if an error happens (descriptors to be closed, memory to be freed, etc.)
227 Each link in the chain records a function to call and an
230 Use make_cleanup to add an element to the cleanup chain.
231 Use do_cleanups to do all cleanup actions back to a given
232 point in the chain. Use discard_cleanups to remove cleanups
233 from the chain back to a given point, not doing them. */
237 struct cleanup
*next
;
238 void (*function
) (PTR
);
243 /* The ability to declare that a function never returns is useful, but
244 not really required to compile GDB successfully, so the NORETURN and
245 ATTR_NORETURN macros normally expand into nothing. */
247 /* If compiling with older versions of GCC, a function may be declared
248 "volatile" to indicate that it does not return. */
251 #if defined(__GNUC__) \
252 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
253 #define NORETURN volatile
255 #define NORETURN /* nothing */
259 /* GCC 2.5 and later versions define a function attribute "noreturn",
260 which is the preferred way to declare that a function never returns.
261 However GCC 2.7 appears to be the first version in which this fully
262 works everywhere we use it. */
264 #ifndef ATTR_NORETURN
265 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
266 #define ATTR_NORETURN __attribute__ ((noreturn))
268 #define ATTR_NORETURN /* nothing */
273 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
274 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
276 #define ATTR_FORMAT(type, x, y) /* nothing */
280 /* Needed for various prototypes */
285 /* From blockframe.c */
287 extern int inside_entry_func (CORE_ADDR
);
289 extern int inside_entry_file (CORE_ADDR addr
);
291 extern int inside_main_func (CORE_ADDR pc
);
293 /* From ch-lang.c, for the moment. (FIXME) */
295 extern char *chill_demangle (const char *);
299 extern void initialize_utils (void);
301 extern void notice_quit (void);
303 extern int strcmp_iw (const char *, const char *);
305 extern int subset_compare (char *, char *);
307 extern char *safe_strerror (int);
309 extern void init_malloc (void *);
311 extern void request_quit (int);
313 extern void do_cleanups (struct cleanup
*);
314 extern void do_final_cleanups (struct cleanup
*);
315 extern void do_my_cleanups (struct cleanup
**, struct cleanup
*);
316 extern void do_run_cleanups (struct cleanup
*);
317 extern void do_exec_cleanups (struct cleanup
*);
318 extern void do_exec_error_cleanups (struct cleanup
*);
320 extern void discard_cleanups (struct cleanup
*);
321 extern void discard_final_cleanups (struct cleanup
*);
322 extern void discard_exec_error_cleanups (struct cleanup
*);
323 extern void discard_my_cleanups (struct cleanup
**, struct cleanup
*);
325 /* NOTE: cagney/2000-03-04: This typedef is strictly for the
326 make_cleanup function declarations below. Do not use this typedef
327 as a cast when passing functions into the make_cleanup() code.
328 Instead either use a bounce function or add a wrapper function.
329 Calling a f(char*) function with f(void*) is non-portable. */
330 typedef void (make_cleanup_ftype
) (void *);
332 extern struct cleanup
*make_cleanup (make_cleanup_ftype
*, void *);
334 extern struct cleanup
*make_cleanup_freeargv (char **);
337 extern struct cleanup
*make_cleanup_ui_file_delete (struct ui_file
*);
339 extern struct cleanup
*make_cleanup_close (int fd
);
341 extern struct cleanup
*make_cleanup_bfd_close (bfd
*abfd
);
343 extern struct cleanup
*make_final_cleanup (make_cleanup_ftype
*, void *);
345 extern struct cleanup
*make_my_cleanup (struct cleanup
**,
346 make_cleanup_ftype
*, void *);
348 extern struct cleanup
*make_run_cleanup (make_cleanup_ftype
*, void *);
350 extern struct cleanup
*make_exec_cleanup (make_cleanup_ftype
*, void *);
351 extern struct cleanup
*make_exec_error_cleanup (make_cleanup_ftype
*, void *);
353 extern struct cleanup
*save_cleanups (void);
354 extern struct cleanup
*save_final_cleanups (void);
355 extern struct cleanup
*save_my_cleanups (struct cleanup
**);
357 extern void restore_cleanups (struct cleanup
*);
358 extern void restore_final_cleanups (struct cleanup
*);
359 extern void restore_my_cleanups (struct cleanup
**, struct cleanup
*);
361 extern void free_current_contents (void *);
363 extern void null_cleanup (void *);
365 extern int myread (int, char *, int);
367 extern int query (const char *, ...) ATTR_FORMAT (printf
, 1, 2);
369 extern void init_page_info (void);
371 extern CORE_ADDR
host_pointer_to_address (void *ptr
);
372 extern void *address_to_host_pointer (CORE_ADDR addr
);
374 extern char *gdb_realpath (const char *);
376 /* From demangle.c */
378 extern void set_demangling_style (char *);
383 typedef int (use_struct_convention_fn
) (int gcc_p
, struct type
* value_type
);
384 extern use_struct_convention_fn generic_use_struct_convention
;
386 typedef unsigned char *(breakpoint_from_pc_fn
) (CORE_ADDR
* pcptr
, int *lenptr
);
388 /* Annotation stuff. */
390 extern int annotation_level
; /* in stack.c */
392 extern void begin_line (void);
394 extern void wrap_here (char *);
396 extern void reinitialize_more_filter (void);
399 extern struct ui_file
*gdb_stdout
;
400 /* Serious error notifications */
401 extern struct ui_file
*gdb_stderr
;
402 /* Log/debug/trace messages that should bypass normal stdout/stderr
403 filtering. For momement, always call this stream using
404 *_unfiltered. In the very near future that restriction shall be
405 removed - either call shall be unfiltered. (cagney 1999-06-13). */
406 extern struct ui_file
*gdb_stdlog
;
407 /* Target output that should bypass normal stdout/stderr filtering.
408 For momement, always call this stream using *_unfiltered. In the
409 very near future that restriction shall be removed - either call
410 shall be unfiltered. (cagney 1999-07-02). */
411 extern struct ui_file
*gdb_stdtarg
;
419 /* More generic printf like operations. Filtered versions may return
420 non-locally on error. */
422 extern void fputs_filtered (const char *, struct ui_file
*);
424 extern void fputs_unfiltered (const char *, struct ui_file
*);
426 extern int fputc_filtered (int c
, struct ui_file
*);
428 extern int fputc_unfiltered (int c
, struct ui_file
*);
430 extern int putchar_filtered (int c
);
432 extern int putchar_unfiltered (int c
);
434 extern void puts_filtered (const char *);
436 extern void puts_unfiltered (const char *);
438 extern void puts_debug (char *prefix
, char *string
, char *suffix
);
440 extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf
, 1, 0);
442 extern void vfprintf_filtered (struct ui_file
*, const char *, va_list) ATTR_FORMAT (printf
, 2, 0);
444 extern void fprintf_filtered (struct ui_file
*, const char *, ...) ATTR_FORMAT (printf
, 2, 3);
446 extern void fprintfi_filtered (int, struct ui_file
*, const char *, ...) ATTR_FORMAT (printf
, 3, 4);
448 extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf
, 1, 2);
450 extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf
, 2, 3);
452 extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf
, 1, 0);
454 extern void vfprintf_unfiltered (struct ui_file
*, const char *, va_list) ATTR_FORMAT (printf
, 2, 0);
456 extern void fprintf_unfiltered (struct ui_file
*, const char *, ...) ATTR_FORMAT (printf
, 2, 3);
458 extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf
, 1, 2);
460 extern void print_spaces (int, struct ui_file
*);
462 extern void print_spaces_filtered (int, struct ui_file
*);
464 extern char *n_spaces (int);
466 extern void fputstr_filtered (const char *str
, int quotr
, struct ui_file
* stream
);
468 extern void fputstr_unfiltered (const char *str
, int quotr
, struct ui_file
* stream
);
470 extern void fputstrn_unfiltered (const char *str
, int n
, int quotr
, struct ui_file
* stream
);
472 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
473 extern void gdb_print_host_address (void *addr
, struct ui_file
*stream
);
475 /* Convert a CORE_ADDR into a HEX string. paddr() is like %08lx.
476 paddr_nz() is like %lx. paddr_u() is like %lu. paddr_width() is
478 extern int strlen_paddr (void);
479 extern char *paddr (CORE_ADDR addr
);
480 extern char *paddr_nz (CORE_ADDR addr
);
481 extern char *paddr_u (CORE_ADDR addr
);
482 extern char *paddr_d (LONGEST addr
);
484 extern char *phex (ULONGEST l
, int sizeof_l
);
485 extern char *phex_nz (ULONGEST l
, int sizeof_l
);
487 /* Like paddr() only print/scan raw CORE_ADDR. The output from
488 core_addr_to_string() can be passed direct to
489 string_to_core_addr(). */
490 extern const char *core_addr_to_string (const CORE_ADDR addr
);
491 extern const char *core_addr_to_string_nz (const CORE_ADDR addr
);
492 extern CORE_ADDR
string_to_core_addr (const char *my_string
);
494 extern void fprintf_symbol_filtered (struct ui_file
*, char *,
497 extern NORETURN
void perror_with_name (const char *) ATTR_NORETURN
;
499 extern void print_sys_errmsg (const char *, int);
501 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
502 "const char *" in unistd.h, so we can't declare the argument
505 extern char *re_comp (const char *);
509 extern void symbol_file_command (char *, int);
511 /* Remote targets may wish to use this as their load function. */
512 extern void generic_load (char *name
, int from_tty
);
514 /* Summarise a download */
515 extern void print_transfer_performance (struct ui_file
*stream
,
516 unsigned long data_count
,
517 unsigned long write_count
,
518 unsigned long time_count
);
522 typedef void initialize_file_ftype (void);
524 extern char *skip_quoted (char *);
526 extern char *gdb_readline (char *);
528 extern char *command_line_input (char *, int, char *);
530 extern void print_prompt (void);
532 extern int input_from_terminal_p (void);
534 extern int info_verbose
;
536 /* From printcmd.c */
538 extern void set_next_address (CORE_ADDR
);
540 extern void print_address_symbolic (CORE_ADDR
, struct ui_file
*, int,
543 extern int build_address_symbolic (CORE_ADDR addr
,
551 extern void print_address_numeric (CORE_ADDR
, int, struct ui_file
*);
553 extern void print_address (CORE_ADDR
, struct ui_file
*);
557 extern int openp (const char *, int, const char *, int, int, char **);
559 extern int source_full_path_of (char *, char **);
561 extern void mod_path (char *, char **);
563 extern void directory_command (char *, int);
565 extern void init_source_path (void);
567 extern char *symtab_to_filename (struct symtab
*);
571 extern void exec_set_section_offsets (bfd_signed_vma text_off
,
572 bfd_signed_vma data_off
,
573 bfd_signed_vma bss_off
);
575 /* Take over the 'find_mapped_memory' vector from exec.c. */
576 extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR
,
584 extern int read_relative_register_raw_bytes (int, char *);
586 /* Possible lvalue types. Like enum language, this should be in
587 value.h, but needs to be here for the same reason. */
593 /* In memory. Could be a saved register. */
597 /* In a gdb internal variable. */
599 /* Part of a gdb internal variable (structure field). */
600 lval_internalvar_component
,
601 /* In a register series in a frame not the current one, which may have been
602 partially saved or saved in different places (otherwise would be
603 lval_register or lval_memory). */
604 lval_reg_frame_relative
609 /* From readline (but not in any readline .h files). */
611 extern char *tilde_expand (char *);
613 /* Control types for commands */
615 enum misc_command_type
623 enum command_control_type
633 /* Structure for saved commands lines
634 (for breakpoints, defined commands, etc). */
638 struct command_line
*next
;
640 enum command_control_type control_type
;
642 struct command_line
**body_list
;
645 extern struct command_line
*read_command_lines (char *, int);
647 extern void free_command_lines (struct command_line
**);
649 /* To continue the execution commands when running gdb asynchronously.
650 A continuation structure contains a pointer to a function to be called
651 to finish the command, once the target has stopped. Such mechanism is
652 used bt the finish and until commands, and in the remote protocol
653 when opening an extended-remote connection. */
655 struct continuation_arg
657 struct continuation_arg
*next
;
658 union continuation_data
{
667 void (*continuation_hook
) (struct continuation_arg
*);
668 struct continuation_arg
*arg_list
;
669 struct continuation
*next
;
673 extern struct continuation
*cmd_continuation
;
674 /* Used only by the step_1 function. */
675 extern struct continuation
*intermediate_continuation
;
678 extern void add_continuation (void (*)(struct continuation_arg
*),
679 struct continuation_arg
*);
680 extern void do_all_continuations (void);
681 extern void discard_all_continuations (void);
683 extern void add_intermediate_continuation (void (*)(struct continuation_arg
*),
684 struct continuation_arg
*);
685 extern void do_all_intermediate_continuations (void);
686 extern void discard_all_intermediate_continuations (void);
688 /* String containing the current directory (what getwd would return). */
690 extern char *current_directory
;
692 /* Default radixes for input and output. Only some values supported. */
693 extern unsigned input_radix
;
694 extern unsigned output_radix
;
696 /* Possibilities for prettyprint parameters to routines which print
697 things. Like enum language, this should be in value.h, but needs
698 to be here for the same reason. FIXME: If we can eliminate this
699 as an arg to LA_VAL_PRINT, then we can probably move it back to
704 Val_no_prettyprint
= 0,
706 /* Use the default setting which the user has specified. */
710 /* The ptid struct is a collection of the various "ids" necessary
711 for identifying the inferior. This consists of the process id
712 (pid), thread id (tid), and other fields necessary for uniquely
713 identifying the inferior process/thread being debugged. When
714 manipulating ptids, the constructors, accessors, and predicate
715 declared in inferior.h should be used. These are as follows:
717 ptid_build - Make a new ptid from a pid, lwp, and tid.
718 pid_to_ptid - Make a new ptid from just a pid.
719 ptid_get_pid - Fetch the pid component of a ptid.
720 ptid_get_lwp - Fetch the lwp component of a ptid.
721 ptid_get_tid - Fetch the tid component of a ptid.
722 ptid_equal - Test to see if two ptids are equal.
724 Please do NOT access the struct ptid members directly (except, of
725 course, in the implementation of the above ptid manipulation
733 /* Lightweight process id */
740 typedef struct ptid ptid_t
;
744 /* Optional host machine definition. Pure autoconf targets will not
745 need a "xm.h" file. This will be a symlink to one of the xm-*.h
746 files, built by the `configure' script. */
752 /* Optional native machine support. Non-native (and possibly pure
753 multi-arch) targets do not need a "nm.h" file. This will be a
754 symlink to one of the nm-*.h files, built by the `configure'
761 /* Optional target machine definition. Pure multi-arch configurations
762 do not need a "tm.h" file. This will be a symlink to one of the
763 tm-*.h files, built by the `configure' script. */
769 /* GDB_MULTI_ARCH is normally set by configure.in using information
770 from configure.tgt or the config/%/%.mt Makefile fragment. Since
771 some targets have defined it in their "tm.h" file, delay providing
772 a default definition until after "tm.h" has been included.. */
774 #ifndef GDB_MULTI_ARCH
775 #define GDB_MULTI_ARCH 0
779 /* If the xm.h file did not define the mode string used to open the
780 files, assume that binary files are opened the same way as text
783 #include "fopen-same.h"
786 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
787 FIXME: Assumes 2's complement arithmetic */
789 #if !defined (UINT_MAX)
790 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
793 #if !defined (INT_MAX)
794 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
797 #if !defined (INT_MIN)
798 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
801 #if !defined (ULONG_MAX)
802 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
805 #if !defined (LONG_MAX)
806 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
809 #if !defined (ULONGEST_MAX)
810 #define ULONGEST_MAX (~(ULONGEST)0) /* 0xFFFFFFFFFFFFFFFF for 64-bits */
813 #if !defined (LONGEST_MAX) /* 0x7FFFFFFFFFFFFFFF for 64-bits */
814 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
817 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
818 arguments to a function, number in a value history, register number, etc.)
819 where the value must not be larger than can fit in an int. */
821 extern int longest_to_int (LONGEST
);
823 /* Assorted functions we can declare, now that const and volatile are
826 extern char *savestring (const char *, size_t);
828 extern char *msavestring (void *, const char *, size_t);
830 extern char *mstrsave (void *, const char *);
832 /* Robust versions of same. Throw an internal error when no memory,
833 guard against stray NULL arguments. */
834 extern void *xmmalloc (void *md
, size_t size
);
835 extern void *xmrealloc (void *md
, void *ptr
, size_t size
);
836 extern void *xmcalloc (void *md
, size_t number
, size_t size
);
837 extern void xmfree (void *md
, void *ptr
);
839 /* xmalloc(), xrealloc() and xcalloc() have already been declared in
841 extern void xfree (void *);
843 /* Like asprintf/vasprintf but get an internal_error if the call
845 extern void xasprintf (char **ret
, const char *format
, ...) ATTR_FORMAT (printf
, 2, 3);
846 extern void xvasprintf (char **ret
, const char *format
, va_list ap
);
848 extern int parse_escape (char **);
850 /* Message to be printed before the error message, when an error occurs. */
852 extern char *error_pre_print
;
854 /* Message to be printed before the error message, when an error occurs. */
856 extern char *quit_pre_print
;
858 /* Message to be printed before the warning message, when a warning occurs. */
860 extern char *warning_pre_print
;
862 extern NORETURN
void verror (const char *fmt
, va_list ap
) ATTR_NORETURN
;
864 extern NORETURN
void error (const char *fmt
, ...) ATTR_NORETURN
;
866 extern NORETURN
void error_stream (struct ui_file
*) ATTR_NORETURN
;
868 /* Returns a freshly allocate buffer containing the last error
870 extern char *error_last_message (void);
872 extern NORETURN
void internal_verror (const char *file
, int line
,
873 const char *, va_list ap
) ATTR_NORETURN
;
875 extern NORETURN
void internal_error (const char *file
, int line
,
876 const char *, ...) ATTR_NORETURN
ATTR_FORMAT (printf
, 3, 4);
878 extern NORETURN
void nomem (long) ATTR_NORETURN
;
880 /* Reasons for calling throw_exception(). NOTE: all reason values
881 must be less than zero. enum value 0 is reserved for internal use
882 as the return value from an initial setjmp(). The function
883 catch_exceptions() reserves values >= 0 as legal results from its
888 /* User interrupt. */
890 /* Any other error. */
894 #define ALL_CLEANUPS ((struct cleanup *)0)
896 #define RETURN_MASK(reason) (1 << (int)(-reason))
897 #define RETURN_MASK_QUIT RETURN_MASK (RETURN_QUIT)
898 #define RETURN_MASK_ERROR RETURN_MASK (RETURN_ERROR)
899 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
900 typedef int return_mask
;
902 /* Throw an exception of type RETURN_REASON. Will execute a LONG JUMP
903 to the inner most containing exception handler established using
904 catch_exceptions() (or the legacy catch_errors()).
906 Code normally throws an exception using error() et.al. For various
907 reaons, GDB also contains code that throws an exception directly.
908 For instance, the remote*.c targets contain CNTRL-C signal handlers
909 that propogate the QUIT event up the exception chain. ``This could
910 be a good thing or a dangerous thing.'' -- the Existential Wombat. */
912 extern NORETURN
void throw_exception (enum return_reason
) ATTR_NORETURN
;
914 /* Call FUNC(UIOUT, FUNC_ARGS) but wrapped within an exception
915 handler. If an exception (enum return_reason) is thrown using
916 throw_exception() than all cleanups installed since
917 catch_exceptions() was entered are invoked, the (-ve) exception
918 value is then returned by catch_exceptions. If FUNC() returns
919 normally (with a postive or zero return value) then that value is
920 returned by catch_exceptions(). It is an internal_error() for
921 FUNC() to return a negative value.
923 For the period of the FUNC() call: UIOUT is installed as the output
924 builder; ERRSTRING is installed as the error/quit message; and a
925 new cleanup_chain is established. The old values are restored
926 before catch_exceptions() returns.
928 FIXME; cagney/2001-08-13: The need to override the global UIOUT
929 builder variable should just go away.
931 This function superseeds catch_errors().
933 This function uses SETJMP() and LONGJUMP(). */
936 typedef int (catch_exceptions_ftype
) (struct ui_out
*ui_out
, void *args
);
937 extern int catch_exceptions (struct ui_out
*uiout
,
938 catch_exceptions_ftype
*func
, void *func_args
,
939 char *errstring
, return_mask mask
);
941 /* If CATCH_ERRORS_FTYPE throws an error, catch_errors() returns zero
942 otherwize the result from CATCH_ERRORS_FTYPE is returned. It is
943 probably useful for CATCH_ERRORS_FTYPE to always return a non-zero
944 value. It's unfortunate that, catch_errors() does not return an
945 indication of the exact exception that it caught - quit_flag might
948 This function is superseeded by catch_exceptions(). */
950 typedef int (catch_errors_ftype
) (PTR
);
951 extern int catch_errors (catch_errors_ftype
*, PTR
, char *, return_mask
);
953 /* Template to catch_errors() that wraps calls to command
956 typedef void (catch_command_errors_ftype
) (char *, int);
957 extern int catch_command_errors (catch_command_errors_ftype
*func
, char *command
, int from_tty
, return_mask
);
959 extern void warning (const char *, ...) ATTR_FORMAT (printf
, 1, 2);
961 extern void vwarning (const char *, va_list args
);
963 /* Global functions from other, non-gdb GNU thingies.
964 Libiberty thingies are no longer declared here. We include libiberty.h
967 #ifndef GETENV_PROVIDED
968 extern char *getenv (const char *);
971 /* From other system libraries */
981 #define min(a, b) ((a) < (b) ? (a) : (b))
984 #define max(a, b) ((a) > (b) ? (a) : (b))
988 /* We take the address of fclose later, but some stdio's forget
989 to declare this. We can't always declare it since there's
990 no way to declare the parameters without upsetting some compiler
993 #ifndef FCLOSE_PROVIDED
994 extern int fclose (FILE *);
998 extern double atof (const char *); /* X3.159-1989 4.10.1.1 */
1001 /* Various possibilities for alloca. */
1004 #define alloca __builtin_alloca
1005 #else /* Not GNU C */
1006 #ifdef HAVE_ALLOCA_H
1013 /* We need to be careful not to declare this in a way which conflicts with
1014 bison. Bison never declares it as char *, but under various circumstances
1015 (like __hpux) we need to use void *. */
1016 extern void *alloca ();
1017 #endif /* Not _AIX */
1018 #endif /* Not HAVE_ALLOCA_H */
1019 #endif /* Not GNU C */
1020 #endif /* alloca not defined */
1022 /* Dynamic target-system-dependent parameters for GDB. */
1023 #include "gdbarch.h"
1024 #if (GDB_MULTI_ARCH == 0)
1025 /* Multi-arch targets _should_ be including "arch-utils.h" directly
1026 into their *-tdep.c file. This is a prop to help old non-
1027 multi-arch targets to continue to compile. */
1028 #include "arch-utils.h"
1031 /* Static target-system-dependent parameters for GDB. */
1033 /* Number of bits in a char or unsigned char for the target machine.
1034 Just like CHAR_BIT in <limits.h> but describes the target machine. */
1035 #if !defined (TARGET_CHAR_BIT)
1036 #define TARGET_CHAR_BIT 8
1039 /* If we picked up a copy of CHAR_BIT from a configuration file
1040 (which may get it by including <limits.h>) then use it to set
1041 the number of bits in a host char. If not, use the same size
1044 #if defined (CHAR_BIT)
1045 #define HOST_CHAR_BIT CHAR_BIT
1047 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1050 /* The bit byte-order has to do just with numbering of bits in
1051 debugging symbols and such. Conceptually, it's quite separate
1052 from byte/word byte order. */
1054 #if !defined (BITS_BIG_ENDIAN)
1055 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
1060 extern LONGEST
extract_signed_integer (void *, int);
1062 extern ULONGEST
extract_unsigned_integer (void *, int);
1064 extern int extract_long_unsigned_integer (void *, int, LONGEST
*);
1066 extern CORE_ADDR
extract_address (void *, int);
1068 extern CORE_ADDR
extract_typed_address (void *buf
, struct type
*type
);
1070 extern void store_signed_integer (void *, int, LONGEST
);
1072 extern void store_unsigned_integer (void *, int, ULONGEST
);
1074 extern void store_address (void *, int, LONGEST
);
1076 extern void store_typed_address (void *buf
, struct type
*type
, CORE_ADDR addr
);
1081 extern CORE_ADDR
push_bytes (CORE_ADDR
, char *, int);
1083 extern CORE_ADDR
push_word (CORE_ADDR
, ULONGEST
);
1085 extern int watchdog
;
1087 /* Hooks for alternate command interfaces. */
1089 /* The name of the interpreter if specified on the command line. */
1090 extern char *interpreter_p
;
1092 /* If a given interpreter matches INTERPRETER_P then it should update
1093 command_loop_hook and init_ui_hook with the per-interpreter
1095 /* FIXME: command_loop_hook and init_ui_hook should be moved here. */
1097 struct target_waitstatus
;
1098 struct cmd_list_element
;
1100 /* Should the asynchronous variant of the interpreter (using the
1101 event-loop) be enabled? */
1102 extern int event_loop_p
;
1104 extern void (*init_ui_hook
) (char *argv0
);
1105 extern void (*command_loop_hook
) (void);
1106 extern void (*show_load_progress
) (const char *section
,
1107 unsigned long section_sent
,
1108 unsigned long section_size
,
1109 unsigned long total_sent
,
1110 unsigned long total_size
);
1111 extern void (*print_frame_info_listing_hook
) (struct symtab
* s
,
1112 int line
, int stopline
,
1114 extern struct frame_info
*parse_frame_specification (char *frame_exp
);
1115 extern int (*query_hook
) (const char *, va_list);
1116 extern void (*warning_hook
) (const char *, va_list);
1117 extern void (*flush_hook
) (struct ui_file
* stream
);
1118 extern void (*create_breakpoint_hook
) (struct breakpoint
* b
);
1119 extern void (*delete_breakpoint_hook
) (struct breakpoint
* bpt
);
1120 extern void (*modify_breakpoint_hook
) (struct breakpoint
* bpt
);
1121 extern void (*interactive_hook
) (void);
1122 extern void (*registers_changed_hook
) (void);
1123 extern void (*readline_begin_hook
) (char *,...);
1124 extern char *(*readline_hook
) (char *);
1125 extern void (*readline_end_hook
) (void);
1126 extern void (*register_changed_hook
) (int regno
);
1127 extern void (*memory_changed_hook
) (CORE_ADDR addr
, int len
);
1128 extern void (*context_hook
) (int);
1129 extern ptid_t (*target_wait_hook
) (ptid_t ptid
,
1130 struct target_waitstatus
* status
);
1132 extern void (*attach_hook
) (void);
1133 extern void (*detach_hook
) (void);
1134 extern void (*call_command_hook
) (struct cmd_list_element
* c
,
1135 char *cmd
, int from_tty
);
1137 extern void (*set_hook
) (struct cmd_list_element
* c
);
1139 extern NORETURN
void (*error_hook
) (void) ATTR_NORETURN
;
1141 extern void (*error_begin_hook
) (void);
1143 extern int (*ui_load_progress_hook
) (const char *section
, unsigned long num
);
1146 /* Inhibit window interface if non-zero. */
1148 extern int use_windows
;
1150 /* Symbolic definitions of filename-related things. */
1151 /* FIXME, this doesn't work very well if host and executable
1152 filesystems conventions are different. */
1154 #ifndef DIRNAME_SEPARATOR
1155 #define DIRNAME_SEPARATOR ':'
1158 #ifndef SLASH_STRING
1159 #define SLASH_STRING "/"
1164 # define GLOBAL_CURDIR
1167 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
1168 The name ``TIDGET'' is a historical accident. Many uses of TIDGET
1169 in the code actually refer to a lightweight process id, i.e,
1170 something that can be considered a process id in its own right for
1171 certain purposes. */
1174 #define PIDGET(PTID) (ptid_get_pid (PTID))
1175 #define TIDGET(PTID) (ptid_get_lwp (PTID))
1176 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
1179 /* Define well known filenos if the system does not define them. */
1180 #ifndef STDIN_FILENO
1181 #define STDIN_FILENO 0
1183 #ifndef STDOUT_FILENO
1184 #define STDOUT_FILENO 1
1186 #ifndef STDERR_FILENO
1187 #define STDERR_FILENO 2
1190 /* If this definition isn't overridden by the header files, assume
1191 that isatty and fileno exist on this system. */
1193 #define ISATTY(FP) (isatty (fileno (FP)))
1196 #endif /* #ifndef DEFS_H */