1 /* *INDENT-OFF* */ /* ATTR_FORMAT confuses indent, avoid running it for now */
2 /* Basic, host-specific, and target-specific definitions for GDB.
3 Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
4 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
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 3 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, see <http://www.gnu.org/licenses/>. */
25 #include "config.h" /* Generated by configure. */
27 #include <sys/types.h>
29 #include <errno.h> /* System call error return status. */
43 /* First include ansidecl.h so we can use the various macro definitions
44 here and in all subsequent file inclusions. */
48 #include "gdb_locale.h"
50 /* For ``enum target_signal''. */
51 #include "gdb/signals.h"
53 /* Just in case they're not defined in stdio.h. */
62 /* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms.
63 It is used as an access modifier in calls to open(), where it acts
64 similarly to the "b" character in fopen()'s MODE argument. On Posix
65 platforms it should be a no-op, so it is defined as 0 here. This
66 ensures that the symbol may be used freely elsewhere in gdb. */
72 #include <stdarg.h> /* For va_list. */
74 #include "libiberty.h"
76 /* Rather than duplicate all the logic in BFD for figuring out what
77 types to use (which can be pretty complicated), symply define them
78 in terms of the corresponding type from BFD. */
82 /* A byte from the program being debugged. */
83 typedef bfd_byte gdb_byte;
85 /* An address in the program being debugged. Host byte order. */
86 typedef bfd_vma CORE_ADDR;
88 /* The largest CORE_ADDR value. */
89 #define CORE_ADDR_MAX (~ (CORE_ADDR) 0)
91 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
97 #define LONGEST BFD_HOST_64_BIT
98 #define ULONGEST BFD_HOST_U_64_BIT
102 #ifdef CC_HAS_LONG_LONG
103 #define LONGEST long long
104 #define ULONGEST unsigned long long
106 #ifdef BFD_HOST_64_BIT
107 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
108 (e.g. i386-windows) so try it. */
109 #define LONGEST BFD_HOST_64_BIT
110 #define ULONGEST BFD_HOST_U_64_BIT
113 #define ULONGEST unsigned long
117 #endif /* No BFD64 */
119 #endif /* ! LONGEST */
122 #define min(a, b) ((a) < (b) ? (a) : (b))
125 #define max(a, b) ((a) > (b) ? (a) : (b))
128 /* Check if a character is one of the commonly used C++ marker characters. */
129 extern int is_cplus_marker (int);
131 /* enable xdb commands if set */
132 extern int xdb_commands;
134 /* enable dbx commands if set */
135 extern int dbx_commands;
137 /* System root path, used to find libraries etc. */
138 extern char *gdb_sysroot;
140 /* Search path for separate debug files. */
141 extern char *debug_file_directory;
143 extern int quit_flag;
144 extern int immediate_quit;
145 extern int sevenbit_strings;
147 extern void quit (void);
149 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
150 benefits of having a ``QUIT'' macro rather than a function are
151 marginal. If the overhead of a QUIT function call is proving
152 significant then its calling frequency should probably be reduced
153 [kingdon]. A profile analyzing the current situtation is
157 if (quit_flag) quit (); \
158 if (deprecated_interactive_hook) deprecated_interactive_hook (); \
161 /* Languages represented in the symbol table and elsewhere.
162 This should probably be in language.h, but since enum's can't
163 be forward declared to satisfy opaque references before their
164 actual definition, needs to be here. */
168 language_unknown, /* Language not known */
169 language_auto, /* Placeholder for automatic setting */
171 language_cplus, /* C++ */
172 language_objc, /* Objective-C */
173 language_java, /* Java */
174 language_fortran, /* Fortran */
175 language_m2, /* Modula-2 */
176 language_asm, /* Assembly language */
177 language_pascal, /* Pascal */
178 language_ada, /* Ada */
179 language_scm, /* Guile Scheme */
180 language_minimal, /* All other languages, minimal support only */
188 unspecified_precision
191 /* A generic, not quite boolean, enumeration. */
199 /* Potential ways that a function can return a value of a given type. */
200 enum return_value_convention
202 /* Where the return value has been squeezed into one or more
204 RETURN_VALUE_REGISTER_CONVENTION,
205 /* Commonly known as the "struct return convention". The caller
206 passes an additional hidden first parameter to the caller. That
207 parameter contains the address at which the value being returned
208 should be stored. While typically, and historically, used for
209 large structs, this is convention is applied to values of many
211 RETURN_VALUE_STRUCT_CONVENTION,
212 /* Like the "struct return convention" above, but where the ABI
213 guarantees that the called function stores the address at which
214 the value being returned is stored in a well-defined location,
215 such as a register or memory slot in the stack frame. Don't use
216 this if the ABI doesn't explicitly guarantees this. */
217 RETURN_VALUE_ABI_RETURNS_ADDRESS,
218 /* Like the "struct return convention" above, but where the ABI
219 guarantees that the address at which the value being returned is
220 stored will be available in a well-defined location, such as a
221 register or memory slot in the stack frame. Don't use this if
222 the ABI doesn't explicitly guarantees this. */
223 RETURN_VALUE_ABI_PRESERVES_ADDRESS,
226 /* the cleanup list records things that have to be undone
227 if an error happens (descriptors to be closed, memory to be freed, etc.)
228 Each link in the chain records a function to call and an
231 Use make_cleanup to add an element to the cleanup chain.
232 Use do_cleanups to do all cleanup actions back to a given
233 point in the chain. Use discard_cleanups to remove cleanups
234 from the chain back to a given point, not doing them.
236 If the argument is pointer to allocated memory, then you need to
237 to additionally set the 'free_arg' member to a function that will
238 free that memory. This function will be called both when the cleanup
239 is executed and when it's discarded. */
243 struct cleanup *next;
244 void (*function) (void *);
245 void (*free_arg) (void *);
250 /* The ability to declare that a function never returns is useful, but
251 not really required to compile GDB successfully, so the NORETURN and
252 ATTR_NORETURN macros normally expand into nothing. */
254 /* If compiling with older versions of GCC, a function may be declared
255 "volatile" to indicate that it does not return. */
258 #if defined(__GNUC__) \
259 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
260 #define NORETURN volatile
262 #define NORETURN /* nothing */
266 /* GCC 2.5 and later versions define a function attribute "noreturn",
267 which is the preferred way to declare that a function never returns.
268 However GCC 2.7 appears to be the first version in which this fully
269 works everywhere we use it. */
271 #ifndef ATTR_NORETURN
272 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
273 #define ATTR_NORETURN __attribute__ ((noreturn))
275 #define ATTR_NORETURN /* nothing */
280 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
281 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
283 #define ATTR_FORMAT(type, x, y) /* nothing */
287 /* Be conservative and use enum bitfields only with GCC.
288 This is copied from gcc 3.3.1, system.h. */
290 #if defined(__GNUC__) && (__GNUC__ >= 2)
291 #define ENUM_BITFIELD(TYPE) enum TYPE
293 #define ENUM_BITFIELD(TYPE) unsigned int
296 /* Needed for various prototypes */
304 extern void initialize_utils (void);
306 extern void notice_quit (void);
308 extern int strcmp_iw (const char *, const char *);
310 extern int strcmp_iw_ordered (const char *, const char *);
312 extern int streq (const char *, const char *);
314 extern int subset_compare (char *, char *);
316 extern char *safe_strerror (int);
318 #define ALL_CLEANUPS ((struct cleanup *)0)
320 extern void do_cleanups (struct cleanup *);
321 extern void do_final_cleanups (struct cleanup *);
323 extern void discard_cleanups (struct cleanup *);
324 extern void discard_final_cleanups (struct cleanup *);
325 extern void discard_my_cleanups (struct cleanup **, struct cleanup *);
327 /* NOTE: cagney/2000-03-04: This typedef is strictly for the
328 make_cleanup function declarations below. Do not use this typedef
329 as a cast when passing functions into the make_cleanup() code.
330 Instead either use a bounce function or add a wrapper function.
331 Calling a f(char*) function with f(void*) is non-portable. */
332 typedef void (make_cleanup_ftype) (void *);
334 extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *);
336 extern struct cleanup *make_cleanup_dtor (make_cleanup_ftype *, void *,
337 void (*dtor) (void *));
339 extern struct cleanup *make_cleanup_freeargv (char **);
342 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
344 struct section_addr_info;
345 extern struct cleanup *(make_cleanup_free_section_addr_info
346 (struct section_addr_info *));
348 extern struct cleanup *make_cleanup_close (int fd);
350 extern struct cleanup *make_cleanup_bfd_close (bfd *abfd);
352 extern struct cleanup *make_cleanup_restore_integer (int *variable);
354 extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
356 extern struct cleanup *make_my_cleanup (struct cleanup **,
357 make_cleanup_ftype *, void *);
359 extern struct cleanup *make_my_cleanup2 (struct cleanup **,
360 make_cleanup_ftype *, void *,
361 void (*free_arg) (void *));
363 extern struct cleanup *save_cleanups (void);
364 extern struct cleanup *save_final_cleanups (void);
365 extern struct cleanup *save_my_cleanups (struct cleanup **);
367 extern void restore_cleanups (struct cleanup *);
368 extern void restore_final_cleanups (struct cleanup *);
369 extern void restore_my_cleanups (struct cleanup **, struct cleanup *);
371 extern void free_current_contents (void *);
373 extern void null_cleanup (void *);
375 extern int myread (int, char *, int);
377 extern int query (const char *, ...) ATTR_FORMAT (printf, 1, 2);
378 extern int nquery (const char *, ...) ATTR_FORMAT (printf, 1, 2);
379 extern int yquery (const char *, ...) ATTR_FORMAT (printf, 1, 2);
381 extern void init_page_info (void);
383 extern char *gdb_realpath (const char *);
384 extern char *xfullpath (const char *);
386 extern unsigned long gnu_debuglink_crc32 (unsigned long crc,
387 unsigned char *buf, size_t len);
389 ULONGEST strtoulst (const char *num, const char **trailer, int base);
391 char *ldirname (const char *filename);
393 /* From demangle.c */
395 extern void set_demangling_style (char *);
398 /* Annotation stuff. */
400 extern int annotation_level; /* in stack.c */
402 extern void begin_line (void);
404 extern void wrap_here (char *);
406 extern void reinitialize_more_filter (void);
409 extern struct ui_file *gdb_stdout;
411 extern struct ui_file *gdb_stdin;
412 /* Serious error notifications */
413 extern struct ui_file *gdb_stderr;
414 /* Log/debug/trace messages that should bypass normal stdout/stderr
415 filtering. For moment, always call this stream using
416 *_unfiltered. In the very near future that restriction shall be
417 removed - either call shall be unfiltered. (cagney 1999-06-13). */
418 extern struct ui_file *gdb_stdlog;
419 /* Target output that should bypass normal stdout/stderr filtering.
420 For moment, always call this stream using *_unfiltered. In the
421 very near future that restriction shall be removed - either call
422 shall be unfiltered. (cagney 1999-07-02). */
423 extern struct ui_file *gdb_stdtarg;
424 extern struct ui_file *gdb_stdtargerr;
425 extern struct ui_file *gdb_stdtargin;
429 /* More generic printf like operations. Filtered versions may return
430 non-locally on error. */
432 extern void fputs_filtered (const char *, struct ui_file *);
434 extern void fputs_unfiltered (const char *, struct ui_file *);
436 extern int fputc_filtered (int c, struct ui_file *);
438 extern int fputc_unfiltered (int c, struct ui_file *);
440 extern int putchar_filtered (int c);
442 extern int putchar_unfiltered (int c);
444 extern void puts_filtered (const char *);
446 extern void puts_unfiltered (const char *);
448 extern void puts_filtered_tabular (char *string, int width, int right);
450 extern void puts_debug (char *prefix, char *string, char *suffix);
452 extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
454 extern void vfprintf_filtered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
456 extern void fprintf_filtered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
458 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 3, 4);
460 extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
462 extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf, 2, 3);
464 extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
466 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
468 extern void fprintf_unfiltered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
470 extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
472 extern void print_spaces (int, struct ui_file *);
474 extern void print_spaces_filtered (int, struct ui_file *);
476 extern char *n_spaces (int);
478 extern void fputstr_filtered (const char *str, int quotr, struct ui_file * stream);
480 extern void fputstr_unfiltered (const char *str, int quotr, struct ui_file * stream);
482 extern void fputstrn_filtered (const char *str, int n, int quotr, struct ui_file * stream);
484 extern void fputstrn_unfiltered (const char *str, int n, int quotr, struct ui_file * stream);
486 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
487 extern void gdb_print_host_address (const void *addr, struct ui_file *stream);
489 extern const char *host_address_to_string (const void *addr);
491 /* Convert a CORE_ADDR into a HEX string. paddr() is like %08lx.
492 paddr_nz() is like %lx. paddr_u() is like %lu. paddr_width() is
494 extern int strlen_paddr (void);
495 extern char *paddr (CORE_ADDR addr);
496 extern char *paddr_nz (CORE_ADDR addr);
497 extern char *paddr_u (CORE_ADDR addr);
498 extern char *paddr_d (LONGEST addr);
501 extern const char *paddress (CORE_ADDR addr);
503 extern char *phex (ULONGEST l, int sizeof_l);
504 extern char *phex_nz (ULONGEST l, int sizeof_l);
505 extern char *int_string (LONGEST, int, int, int, int);
507 /* Like paddr() only print/scan raw CORE_ADDR. The output from
508 core_addr_to_string() can be passed direct to
509 string_to_core_addr(). */
510 extern const char *core_addr_to_string (const CORE_ADDR addr);
511 extern const char *core_addr_to_string_nz (const CORE_ADDR addr);
512 extern CORE_ADDR string_to_core_addr (const char *my_string);
514 /* Return a string that contains a number formatted as a hex
516 extern char *hex_string (LONGEST);
517 extern char *hex_string_custom (LONGEST, int);
519 extern void fprintf_symbol_filtered (struct ui_file *, char *,
522 extern NORETURN void perror_with_name (const char *) ATTR_NORETURN;
524 extern void print_sys_errmsg (const char *, int);
526 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
527 "const char *" in unistd.h, so we can't declare the argument
530 extern char *re_comp (const char *);
534 extern void symbol_file_command (char *, int);
536 /* Remote targets may wish to use this as their load function. */
537 extern void generic_load (char *name, int from_tty);
539 /* Report on STREAM the performance of memory transfer operation,
541 DATA_COUNT is the number of bytes transferred.
542 WRITE_COUNT is the number of separate write operations, or 0,
543 if that information is not available.
544 START_TIME is the time at which an operation was started.
545 END_TIME is the time at which an operation ended. */
547 extern void print_transfer_performance (struct ui_file *stream,
548 unsigned long data_count,
549 unsigned long write_count,
550 const struct timeval *start_time,
551 const struct timeval *end_time);
555 typedef void initialize_file_ftype (void);
557 extern char *skip_quoted (char *);
559 extern char *gdb_readline (char *);
561 extern char *gdb_readline_wrapper (char *);
563 extern char *command_line_input (char *, int, char *);
565 extern void print_prompt (void);
567 extern int input_from_terminal_p (void);
569 extern int info_verbose;
571 /* From printcmd.c */
573 extern void set_next_address (CORE_ADDR);
575 extern void print_address_symbolic (CORE_ADDR, struct ui_file *, int,
578 extern int build_address_symbolic (CORE_ADDR addr,
586 extern void print_address (CORE_ADDR, struct ui_file *);
590 #define OPF_TRY_CWD_FIRST 0x01
591 #define OPF_SEARCH_IN_PATH 0x02
593 extern int openp (const char *, int, const char *, int, int, char **);
595 extern int source_full_path_of (char *, char **);
597 extern void mod_path (char *, char **);
599 extern void add_path (char *, char **, int);
601 extern void directory_command (char *, int);
603 extern void directory_switch (char *, int);
605 extern char *source_path;
607 extern void init_source_path (void);
609 extern void init_last_source_visited (void);
613 /* Take over the 'find_mapped_memory' vector from exec.c. */
614 extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR,
620 /* Possible lvalue types. Like enum language, this should be in
621 value.h, but needs to be here for the same reason. */
629 /* In a register. Registers are relative to a frame. */
631 /* In a gdb internal variable. */
633 /* Part of a gdb internal variable (structure field). */
634 lval_internalvar_component
637 /* Control types for commands */
639 enum misc_command_type
647 enum command_control_type
658 /* Structure for saved commands lines
659 (for breakpoints, defined commands, etc). */
663 struct command_line *next;
665 enum command_control_type control_type;
667 struct command_line **body_list;
670 extern struct command_line *read_command_lines (char *, int);
672 extern void free_command_lines (struct command_line **);
674 /* To continue the execution commands when running gdb asynchronously.
675 A continuation structure contains a pointer to a function to be called
676 to finish the command, once the target has stopped. Such mechanism is
677 used by the finish and until commands, and in the remote protocol
678 when opening an extended-remote connection. */
680 struct continuation_arg
682 struct continuation_arg *next;
683 union continuation_data {
692 void (*continuation_hook) (struct continuation_arg *, int);
693 struct continuation_arg *arg_list;
694 struct continuation *next;
698 extern struct continuation *cmd_continuation;
699 /* Used only by the step_1 function. */
700 extern struct continuation *intermediate_continuation;
703 extern void add_continuation (void (*)(struct continuation_arg *, int),
704 struct continuation_arg *);
705 extern void do_all_continuations (int error);
706 extern void discard_all_continuations (void);
708 extern void add_intermediate_continuation (void (*)(struct continuation_arg *, int),
709 struct continuation_arg *);
710 extern void do_all_intermediate_continuations (int error);
711 extern void discard_all_intermediate_continuations (void);
713 /* String containing the current directory (what getwd would return). */
715 extern char *current_directory;
717 /* Default radixes for input and output. Only some values supported. */
718 extern unsigned input_radix;
719 extern unsigned output_radix;
721 /* Possibilities for prettyprint parameters to routines which print
722 things. Like enum language, this should be in value.h, but needs
723 to be here for the same reason. FIXME: If we can eliminate this
724 as an arg to LA_VAL_PRINT, then we can probably move it back to
729 Val_no_prettyprint = 0,
731 /* Use the default setting which the user has specified. */
735 /* The ptid struct is a collection of the various "ids" necessary
736 for identifying the inferior. This consists of the process id
737 (pid), thread id (tid), and other fields necessary for uniquely
738 identifying the inferior process/thread being debugged. When
739 manipulating ptids, the constructors, accessors, and predicate
740 declared in inferior.h should be used. These are as follows:
742 ptid_build - Make a new ptid from a pid, lwp, and tid.
743 pid_to_ptid - Make a new ptid from just a pid.
744 ptid_get_pid - Fetch the pid component of a ptid.
745 ptid_get_lwp - Fetch the lwp component of a ptid.
746 ptid_get_tid - Fetch the tid component of a ptid.
747 ptid_equal - Test to see if two ptids are equal.
749 Please do NOT access the struct ptid members directly (except, of
750 course, in the implementation of the above ptid manipulation
758 /* Lightweight process id */
765 typedef struct ptid ptid_t;
769 /* Optional native machine support. Non-native (and possibly pure
770 multi-arch) targets do not need a "nm.h" file. This will be a
771 symlink to one of the nm-*.h files, built by the `configure'
778 /* Assume that fopen accepts the letter "b" in the mode string.
779 It is demanded by ISO C9X, and should be supported on all
780 platforms that claim to have a standard-conforming C library. On
781 true POSIX systems it will be ignored and have no effect. There
782 may still be systems without a standard-conforming C library where
783 an ISO C9X compiler (GCC) is available. Known examples are SunOS
784 4.x and 4.3BSD. This assumption means these systems are no longer
787 # include "fopen-bin.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 /* xmalloc(), xrealloc() and xcalloc() have already been declared in
834 extern void xfree (void *);
836 /* Like xmalloc, but zero the memory. */
837 extern void *xzalloc (size_t);
839 /* Utility macros to allocate typed memory. Avoids errors like:
840 struct foo *foo = xmalloc (sizeof struct bar); and memset (foo,
841 sizeof (struct foo), 0). */
842 #define XZALLOC(TYPE) ((TYPE*) xzalloc (sizeof (TYPE)))
843 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
844 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE)))
846 /* Like asprintf/vasprintf but get an internal_error if the call
848 extern void xasprintf (char **ret, const char *format, ...) ATTR_FORMAT (printf, 2, 3);
849 extern void xvasprintf (char **ret, const char *format, va_list ap)
850 ATTR_FORMAT (printf, 2, 0);
852 /* Like asprintf and vasprintf, but return the string, throw an error
854 extern char *xstrprintf (const char *format, ...) ATTR_FORMAT (printf, 1, 2);
855 extern char *xstrvprintf (const char *format, va_list ap)
856 ATTR_FORMAT (printf, 1, 0);
858 /* Like snprintf, but throw an error if the output buffer is too small. */
859 extern int xsnprintf (char *str, size_t size, const char *format, ...)
860 ATTR_FORMAT (printf, 3, 4);
862 extern int parse_escape (char **);
864 /* Message to be printed before the error message, when an error occurs. */
866 extern char *error_pre_print;
868 /* Message to be printed before the error message, when an error occurs. */
870 extern char *quit_pre_print;
872 /* Message to be printed before the warning message, when a warning occurs. */
874 extern char *warning_pre_print;
876 extern NORETURN void verror (const char *fmt, va_list ap)
877 ATTR_NORETURN ATTR_FORMAT (printf, 1, 0);
879 extern NORETURN void error (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
881 extern NORETURN void error_stream (struct ui_file *) ATTR_NORETURN;
883 extern NORETURN void vfatal (const char *fmt, va_list ap)
884 ATTR_NORETURN ATTR_FORMAT (printf, 1, 0);
886 extern NORETURN void fatal (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
888 extern NORETURN void internal_verror (const char *file, int line,
889 const char *, va_list ap)
890 ATTR_NORETURN ATTR_FORMAT (printf, 3, 0);
892 extern NORETURN void internal_error (const char *file, int line,
893 const char *, ...) ATTR_NORETURN ATTR_FORMAT (printf, 3, 4);
895 extern void internal_vwarning (const char *file, int line,
896 const char *, va_list ap)
897 ATTR_FORMAT (printf, 3, 0);
899 extern void internal_warning (const char *file, int line,
900 const char *, ...) ATTR_FORMAT (printf, 3, 4);
902 extern NORETURN void nomem (long) ATTR_NORETURN;
904 extern void warning (const char *, ...) ATTR_FORMAT (printf, 1, 2);
906 extern void vwarning (const char *, va_list args) ATTR_FORMAT (printf, 1, 0);
908 /* List of known OS ABIs. If you change this, make sure to update the
912 GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info. */
914 GDB_OSABI_UNKNOWN = 0, /* keep this zero */
921 GDB_OSABI_FREEBSD_AOUT,
922 GDB_OSABI_FREEBSD_ELF,
923 GDB_OSABI_NETBSD_AOUT,
924 GDB_OSABI_NETBSD_ELF,
925 GDB_OSABI_OPENBSD_ELF,
939 GDB_OSABI_INVALID /* keep this last */
942 /* Global functions from other, non-gdb GNU thingies.
943 Libiberty thingies are no longer declared here. We include libiberty.h
946 /* From other system libraries */
956 #define min(a, b) ((a) < (b) ? (a) : (b))
959 #define max(a, b) ((a) > (b) ? (a) : (b))
964 extern double atof (const char *); /* X3.159-1989 4.10.1.1 */
967 /* Various possibilities for alloca. */
970 #define alloca __builtin_alloca
971 #else /* Not GNU C */
979 /* We need to be careful not to declare this in a way which conflicts with
980 bison. Bison never declares it as char *, but under various circumstances
981 (like __hpux) we need to use void *. */
982 extern void *alloca ();
983 #endif /* Not _AIX */
984 #endif /* Not HAVE_ALLOCA_H */
985 #endif /* Not GNU C */
986 #endif /* alloca not defined */
988 /* Dynamic target-system-dependent parameters for GDB. */
991 /* Maximum size of a register. Something small, but large enough for
992 all known ISAs. If it turns out to be too small, make it bigger. */
994 enum { MAX_REGISTER_SIZE = 16 };
996 /* Static target-system-dependent parameters for GDB. */
998 /* Number of bits in a char or unsigned char for the target machine.
999 Just like CHAR_BIT in <limits.h> but describes the target machine. */
1000 #if !defined (TARGET_CHAR_BIT)
1001 #define TARGET_CHAR_BIT 8
1004 /* If we picked up a copy of CHAR_BIT from a configuration file
1005 (which may get it by including <limits.h>) then use it to set
1006 the number of bits in a host char. If not, use the same size
1009 #if defined (CHAR_BIT)
1010 #define HOST_CHAR_BIT CHAR_BIT
1012 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1017 extern LONGEST extract_signed_integer (const gdb_byte *, int);
1019 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int);
1021 extern int extract_long_unsigned_integer (const gdb_byte *, int, LONGEST *);
1023 extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
1026 extern void store_signed_integer (gdb_byte *, int, LONGEST);
1028 extern void store_unsigned_integer (gdb_byte *, int, ULONGEST);
1030 extern void store_typed_address (gdb_byte *buf, struct type *type,
1036 extern int watchdog;
1038 /* Hooks for alternate command interfaces. */
1040 /* The name of the interpreter if specified on the command line. */
1041 extern char *interpreter_p;
1043 /* If a given interpreter matches INTERPRETER_P then it should update
1044 deprecated_command_loop_hook and deprecated_init_ui_hook with the
1045 per-interpreter implementation. */
1046 /* FIXME: deprecated_command_loop_hook and deprecated_init_ui_hook
1047 should be moved here. */
1049 struct target_waitstatus;
1050 struct cmd_list_element;
1052 extern void (*deprecated_pre_add_symbol_hook) (const char *);
1053 extern void (*deprecated_post_add_symbol_hook) (void);
1054 extern void (*selected_frame_level_changed_hook) (int);
1055 extern int (*deprecated_ui_loop_hook) (int signo);
1056 extern void (*deprecated_init_ui_hook) (char *argv0);
1057 extern void (*deprecated_command_loop_hook) (void);
1058 extern void (*deprecated_show_load_progress) (const char *section,
1059 unsigned long section_sent,
1060 unsigned long section_size,
1061 unsigned long total_sent,
1062 unsigned long total_size);
1063 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
1064 int line, int stopline,
1066 extern int (*deprecated_query_hook) (const char *, va_list)
1067 ATTRIBUTE_FPTR_PRINTF(1,0);
1068 extern void (*deprecated_warning_hook) (const char *, va_list)
1069 ATTRIBUTE_FPTR_PRINTF(1,0);
1070 extern void (*deprecated_flush_hook) (struct ui_file * stream);
1071 extern void (*deprecated_create_breakpoint_hook) (struct breakpoint * b);
1072 extern void (*deprecated_delete_breakpoint_hook) (struct breakpoint * bpt);
1073 extern void (*deprecated_modify_breakpoint_hook) (struct breakpoint * bpt);
1074 extern void (*deprecated_interactive_hook) (void);
1075 extern void (*deprecated_readline_begin_hook) (char *, ...)
1076 ATTRIBUTE_FPTR_PRINTF_1;
1077 extern char *(*deprecated_readline_hook) (char *);
1078 extern void (*deprecated_readline_end_hook) (void);
1079 extern void (*deprecated_register_changed_hook) (int regno);
1080 extern void (*deprecated_memory_changed_hook) (CORE_ADDR addr, int len);
1081 extern void (*deprecated_context_hook) (int);
1082 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
1083 struct target_waitstatus * status);
1085 extern void (*deprecated_attach_hook) (void);
1086 extern void (*deprecated_detach_hook) (void);
1087 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
1088 char *cmd, int from_tty);
1090 extern void (*deprecated_set_hook) (struct cmd_list_element * c);
1092 extern void (*deprecated_error_hook) (void);
1094 extern void (*deprecated_error_begin_hook) (void);
1096 extern int (*deprecated_ui_load_progress_hook) (const char *section,
1100 /* Inhibit window interface if non-zero. */
1102 extern int use_windows;
1104 /* Symbolic definitions of filename-related things. */
1105 /* FIXME, this doesn't work very well if host and executable
1106 filesystems conventions are different. */
1110 # define GLOBAL_CURDIR
1111 # define DIRNAME_SEPARATOR ';'
1114 #if !defined (__CYGWIN__) && defined (_WIN32)
1115 # define DIRNAME_SEPARATOR ';'
1118 #ifndef DIRNAME_SEPARATOR
1119 #define DIRNAME_SEPARATOR ':'
1122 #ifndef SLASH_STRING
1123 #define SLASH_STRING "/"
1126 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
1127 The name ``TIDGET'' is a historical accident. Many uses of TIDGET
1128 in the code actually refer to a lightweight process id, i.e,
1129 something that can be considered a process id in its own right for
1130 certain purposes. */
1133 #define PIDGET(PTID) (ptid_get_pid (PTID))
1134 #define TIDGET(PTID) (ptid_get_lwp (PTID))
1135 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
1138 /* Define well known filenos if the system does not define them. */
1139 #ifndef STDIN_FILENO
1140 #define STDIN_FILENO 0
1142 #ifndef STDOUT_FILENO
1143 #define STDOUT_FILENO 1
1145 #ifndef STDERR_FILENO
1146 #define STDERR_FILENO 2
1149 /* If this definition isn't overridden by the header files, assume
1150 that isatty and fileno exist on this system. */
1152 #define ISATTY(FP) (isatty (fileno (FP)))
1155 /* Ensure that V is aligned to an N byte boundary (B's assumed to be a
1156 power of 2). Round up/down when necessary. Examples of correct
1159 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
1160 write_memory (addr, value, len);
1165 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
1166 write_memory (sp, value, len);
1168 Note that uses such as:
1170 write_memory (addr, value, len);
1171 addr += align_up (len, 8);
1175 sp -= align_up (len, 8);
1176 write_memory (sp, value, len);
1178 are typically not correct as they don't ensure that the address (SP
1179 or ADDR) is correctly aligned (relying on previous alignment to
1180 keep things right). This is also why the methods are called
1181 "align_..." instead of "round_..." as the latter reads better with
1182 this incorrect coding style. */
1184 extern ULONGEST align_up (ULONGEST v, int n);
1185 extern ULONGEST align_down (ULONGEST v, int n);
1187 /* Allocation and deallocation functions for the libiberty hash table
1188 which use obstacks. */
1189 void *hashtab_obstack_allocate (void *data, size_t size, size_t count);
1190 void dummy_obstack_deallocate (void *object, void *data);
1192 #endif /* #ifndef DEFS_H */