1 /* *INDENT-OFF* */ /* ATTRIBUTE_PRINTF confuses indent, avoid running it
3 /* Basic, host-specific, and target-specific definitions for GDB.
4 Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
5 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009,
6 2010 Free Software Foundation, Inc.
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
26 #include "config.h" /* Generated by configure. */
28 #include <sys/types.h>
30 #include <errno.h> /* System call error return status. */
34 /* The libdecnumber library, on which GDB depends, includes a header file
35 called gstdint.h instead of relying directly on stdint.h. GDB, on the
36 other hand, includes stdint.h directly, relying on the fact that gnulib
37 generates a copy if the system doesn't provide one or if it is missing
38 some features. Unfortunately, gstdint.h and stdint.h cannot be included
39 at the same time, which may happen when we include a file from
42 The following macro definition effectively prevents the inclusion of
43 gstdint.h, as all the definitions it provides are guarded against
44 the GCC_GENERATED_STDINT_H macro. We already have gnulib/stdint.h
45 included, so it's ok to blank out gstdint.h. */
46 #define GCC_GENERATED_STDINT_H 1
58 /* First include ansidecl.h so we can use the various macro definitions
59 here and in all subsequent file inclusions. */
63 #include "gdb_locale.h"
65 #include "gdb_wchar.h"
67 /* For ``enum target_signal''. */
68 #include "gdb/signals.h"
70 /* Just in case they're not defined in stdio.h. */
79 /* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms.
80 It is used as an access modifier in calls to open(), where it acts
81 similarly to the "b" character in fopen()'s MODE argument. On Posix
82 platforms it should be a no-op, so it is defined as 0 here. This
83 ensures that the symbol may be used freely elsewhere in gdb. */
89 #include <stdarg.h> /* For va_list. */
91 #include "libiberty.h"
93 /* Rather than duplicate all the logic in BFD for figuring out what
94 types to use (which can be pretty complicated), symply define them
95 in terms of the corresponding type from BFD. */
99 /* A byte from the program being debugged. */
100 typedef bfd_byte gdb_byte;
102 /* An address in the program being debugged. Host byte order. */
103 typedef bfd_vma CORE_ADDR;
105 /* The largest CORE_ADDR value. */
106 #define CORE_ADDR_MAX (~ (CORE_ADDR) 0)
108 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
114 #define LONGEST BFD_HOST_64_BIT
115 #define ULONGEST BFD_HOST_U_64_BIT
119 #ifdef CC_HAS_LONG_LONG
120 #define LONGEST long long
121 #define ULONGEST unsigned long long
123 #ifdef BFD_HOST_64_BIT
124 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
125 (e.g. i386-windows) so try it. */
126 #define LONGEST BFD_HOST_64_BIT
127 #define ULONGEST BFD_HOST_U_64_BIT
130 #define ULONGEST unsigned long
134 #endif /* No BFD64 */
136 #endif /* ! LONGEST */
139 #define min(a, b) ((a) < (b) ? (a) : (b))
142 #define max(a, b) ((a) > (b) ? (a) : (b))
145 /* Check if a character is one of the commonly used C++ marker characters. */
146 extern int is_cplus_marker (int);
148 /* enable xdb commands if set */
149 extern int xdb_commands;
151 /* enable dbx commands if set */
152 extern int dbx_commands;
154 /* System root path, used to find libraries etc. */
155 extern char *gdb_sysroot;
157 /* GDB datadir, used to store data files. */
158 extern char *gdb_datadir;
160 /* If non-NULL, the possibly relocated path to python's "lib" directory
161 specified with --with-python. */
162 extern char *python_libdir;
164 /* Search path for separate debug files. */
165 extern char *debug_file_directory;
167 extern int quit_flag;
168 extern int immediate_quit;
169 extern int sevenbit_strings;
171 extern void quit (void);
173 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
174 benefits of having a ``QUIT'' macro rather than a function are
175 marginal. If the overhead of a QUIT function call is proving
176 significant then its calling frequency should probably be reduced
177 [kingdon]. A profile analyzing the current situtation is
181 if (quit_flag) quit (); \
182 if (deprecated_interactive_hook) deprecated_interactive_hook (); \
185 /* Languages represented in the symbol table and elsewhere.
186 This should probably be in language.h, but since enum's can't
187 be forward declared to satisfy opaque references before their
188 actual definition, needs to be here. */
192 language_unknown, /* Language not known */
193 language_auto, /* Placeholder for automatic setting */
195 language_cplus, /* C++ */
197 language_objc, /* Objective-C */
198 language_java, /* Java */
199 language_fortran, /* Fortran */
200 language_m2, /* Modula-2 */
201 language_asm, /* Assembly language */
202 language_pascal, /* Pascal */
203 language_ada, /* Ada */
204 language_scm, /* Guile Scheme */
205 language_minimal, /* All other languages, minimal support only */
213 unspecified_precision
216 /* A generic, not quite boolean, enumeration. */
224 /* Potential ways that a function can return a value of a given type. */
225 enum return_value_convention
227 /* Where the return value has been squeezed into one or more
229 RETURN_VALUE_REGISTER_CONVENTION,
230 /* Commonly known as the "struct return convention". The caller
231 passes an additional hidden first parameter to the caller. That
232 parameter contains the address at which the value being returned
233 should be stored. While typically, and historically, used for
234 large structs, this is convention is applied to values of many
236 RETURN_VALUE_STRUCT_CONVENTION,
237 /* Like the "struct return convention" above, but where the ABI
238 guarantees that the called function stores the address at which
239 the value being returned is stored in a well-defined location,
240 such as a register or memory slot in the stack frame. Don't use
241 this if the ABI doesn't explicitly guarantees this. */
242 RETURN_VALUE_ABI_RETURNS_ADDRESS,
243 /* Like the "struct return convention" above, but where the ABI
244 guarantees that the address at which the value being returned is
245 stored will be available in a well-defined location, such as a
246 register or memory slot in the stack frame. Don't use this if
247 the ABI doesn't explicitly guarantees this. */
248 RETURN_VALUE_ABI_PRESERVES_ADDRESS,
251 /* the cleanup list records things that have to be undone
252 if an error happens (descriptors to be closed, memory to be freed, etc.)
253 Each link in the chain records a function to call and an
256 Use make_cleanup to add an element to the cleanup chain.
257 Use do_cleanups to do all cleanup actions back to a given
258 point in the chain. Use discard_cleanups to remove cleanups
259 from the chain back to a given point, not doing them.
261 If the argument is pointer to allocated memory, then you need to
262 to additionally set the 'free_arg' member to a function that will
263 free that memory. This function will be called both when the cleanup
264 is executed and when it's discarded. */
268 struct cleanup *next;
269 void (*function) (void *);
270 void (*free_arg) (void *);
274 /* Be conservative and use enum bitfields only with GCC.
275 This is copied from gcc 3.3.1, system.h. */
277 #if defined(__GNUC__) && (__GNUC__ >= 2)
278 #define ENUM_BITFIELD(TYPE) enum TYPE
280 #define ENUM_BITFIELD(TYPE) unsigned int
283 /* vec.h-style vectors of strings want a typedef for char * . */
285 typedef char * char_ptr;
287 /* Needed for various prototypes */
296 extern void initialize_utils (void);
298 extern void notice_quit (void);
300 extern int strcmp_iw (const char *, const char *);
302 extern int strcmp_iw_ordered (const char *, const char *);
304 extern int streq (const char *, const char *);
306 extern int subset_compare (char *, char *);
308 extern char *safe_strerror (int);
310 extern void set_display_time (int);
312 extern void set_display_space (int);
314 #define ALL_CLEANUPS ((struct cleanup *)0)
316 extern void do_cleanups (struct cleanup *);
317 extern void do_final_cleanups (struct cleanup *);
319 extern void discard_cleanups (struct cleanup *);
320 extern void discard_final_cleanups (struct cleanup *);
321 extern void discard_my_cleanups (struct cleanup **, struct cleanup *);
323 /* NOTE: cagney/2000-03-04: This typedef is strictly for the
324 make_cleanup function declarations below. Do not use this typedef
325 as a cast when passing functions into the make_cleanup() code.
326 Instead either use a bounce function or add a wrapper function.
327 Calling a f(char*) function with f(void*) is non-portable. */
328 typedef void (make_cleanup_ftype) (void *);
330 extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *);
332 extern struct cleanup *make_cleanup_dtor (make_cleanup_ftype *, void *,
333 void (*dtor) (void *));
335 extern struct cleanup *make_cleanup_freeargv (char **);
338 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
340 struct section_addr_info;
341 extern struct cleanup *(make_cleanup_free_section_addr_info
342 (struct section_addr_info *));
344 extern struct cleanup *make_cleanup_close (int fd);
346 extern struct cleanup *make_cleanup_fclose (FILE *file);
348 extern struct cleanup *make_cleanup_bfd_close (bfd *abfd);
351 extern struct cleanup *make_cleanup_obstack_free (struct obstack *obstack);
353 extern struct cleanup *make_cleanup_restore_integer (int *variable);
354 extern struct cleanup *make_cleanup_restore_uinteger (unsigned int *variable);
356 extern struct cleanup *
357 make_cleanup_restore_ui_file (struct ui_file **variable);
359 extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
361 extern struct cleanup *make_my_cleanup (struct cleanup **,
362 make_cleanup_ftype *, void *);
364 extern struct cleanup *make_my_cleanup2 (struct cleanup **,
365 make_cleanup_ftype *, void *,
366 void (*free_arg) (void *));
368 extern struct cleanup *save_cleanups (void);
369 extern struct cleanup *save_final_cleanups (void);
370 extern struct cleanup *save_my_cleanups (struct cleanup **);
372 extern void restore_cleanups (struct cleanup *);
373 extern void restore_final_cleanups (struct cleanup *);
374 extern void restore_my_cleanups (struct cleanup **, struct cleanup *);
376 extern void free_current_contents (void *);
378 extern void null_cleanup (void *);
380 extern struct cleanup *make_command_stats_cleanup (int);
382 extern int myread (int, char *, int);
384 extern int query (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
385 extern int nquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
386 extern int yquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
388 extern void init_page_info (void);
390 extern struct cleanup *make_cleanup_restore_page_info (void);
391 extern struct cleanup *
392 set_batch_flag_and_make_cleanup_restore_page_info (void);
394 extern char *gdb_realpath (const char *);
395 extern char *xfullpath (const char *);
397 extern unsigned long gnu_debuglink_crc32 (unsigned long crc,
398 unsigned char *buf, size_t len);
400 ULONGEST strtoulst (const char *num, const char **trailer, int base);
402 char *ldirname (const char *filename);
404 char **gdb_buildargv (const char *);
406 int compare_positive_ints (const void *ap, const void *bp);
408 /* A wrapper for bfd_errmsg to produce a more helpful error message
409 in the case of bfd_error_file_ambiguously recognized.
410 MATCHING, if non-NULL, is the corresponding argument to
411 bfd_check_format_matches, and will be freed. */
413 extern const char *gdb_bfd_errmsg (bfd_error_type error_tag, char **matching);
415 extern int parse_pid_to_attach (char *args);
417 /* From demangle.c */
419 extern void set_demangling_style (char *);
422 /* Annotation stuff. */
424 extern int annotation_level; /* in stack.c */
426 extern void begin_line (void);
428 extern void wrap_here (char *);
430 extern void reinitialize_more_filter (void);
433 extern struct ui_file *gdb_stdout;
435 extern struct ui_file *gdb_stdin;
436 /* Serious error notifications */
437 extern struct ui_file *gdb_stderr;
438 /* Log/debug/trace messages that should bypass normal stdout/stderr
439 filtering. For moment, always call this stream using
440 *_unfiltered. In the very near future that restriction shall be
441 removed - either call shall be unfiltered. (cagney 1999-06-13). */
442 extern struct ui_file *gdb_stdlog;
443 /* Target output that should bypass normal stdout/stderr filtering.
444 For moment, always call this stream using *_unfiltered. In the
445 very near future that restriction shall be removed - either call
446 shall be unfiltered. (cagney 1999-07-02). */
447 extern struct ui_file *gdb_stdtarg;
448 extern struct ui_file *gdb_stdtargerr;
449 extern struct ui_file *gdb_stdtargin;
453 /* More generic printf like operations. Filtered versions may return
454 non-locally on error. */
456 extern void fputs_filtered (const char *, struct ui_file *);
458 extern void fputs_unfiltered (const char *, struct ui_file *);
460 extern int fputc_filtered (int c, struct ui_file *);
462 extern int fputc_unfiltered (int c, struct ui_file *);
464 extern int putchar_filtered (int c);
466 extern int putchar_unfiltered (int c);
468 extern void puts_filtered (const char *);
470 extern void puts_unfiltered (const char *);
472 extern void puts_filtered_tabular (char *string, int width, int right);
474 extern void puts_debug (char *prefix, char *string, char *suffix);
476 extern void vprintf_filtered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
478 extern void vfprintf_filtered (struct ui_file *, const char *, va_list) ATTRIBUTE_PRINTF (2, 0);
480 extern void fprintf_filtered (struct ui_file *, const char *, ...) ATTRIBUTE_PRINTF (2, 3);
482 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) ATTRIBUTE_PRINTF (3, 4);
484 extern void printf_filtered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
486 extern void printfi_filtered (int, const char *, ...) ATTRIBUTE_PRINTF (2, 3);
488 extern void vprintf_unfiltered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
490 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) ATTRIBUTE_PRINTF (2, 0);
492 extern void fprintf_unfiltered (struct ui_file *, const char *, ...) ATTRIBUTE_PRINTF (2, 3);
494 extern void printf_unfiltered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
496 extern void print_spaces (int, struct ui_file *);
498 extern void print_spaces_filtered (int, struct ui_file *);
500 extern char *n_spaces (int);
502 extern void fputstr_filtered (const char *str, int quotr, struct ui_file * stream);
504 extern void fputstr_unfiltered (const char *str, int quotr, struct ui_file * stream);
506 extern void fputstrn_filtered (const char *str, int n, int quotr, struct ui_file * stream);
508 extern void fputstrn_unfiltered (const char *str, int n, int quotr, struct ui_file * stream);
510 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
511 extern void gdb_print_host_address (const void *addr, struct ui_file *stream);
513 extern const char *host_address_to_string (const void *addr);
515 /* Convert CORE_ADDR to string in platform-specific manner.
516 This is usually formatted similar to 0x%lx. */
517 extern const char *paddress (struct gdbarch *gdbarch, CORE_ADDR addr);
520 extern char *plongest (LONGEST l);
521 /* %u for ULONGEST */
522 extern char *pulongest (ULONGEST l);
524 extern char *phex (ULONGEST l, int sizeof_l);
525 extern char *phex_nz (ULONGEST l, int sizeof_l);
526 extern char *int_string (LONGEST, int, int, int, int);
528 /* Convert a CORE_ADDR into a HEX string with leading zeros.
529 The output from core_addr_to_string() can be passed direct to
530 string_to_core_addr(). */
531 extern const char *core_addr_to_string (const CORE_ADDR addr);
532 extern const char *core_addr_to_string_nz (const CORE_ADDR addr);
533 extern CORE_ADDR string_to_core_addr (const char *my_string);
535 /* Return a string that contains a number formatted as a hex
537 extern char *hex_string (LONGEST);
538 extern char *hex_string_custom (LONGEST, int);
540 extern void fprintf_symbol_filtered (struct ui_file *, char *,
543 extern void perror_with_name (const char *) ATTRIBUTE_NORETURN;
545 extern void print_sys_errmsg (const char *, int);
547 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
548 "const char *" in unistd.h, so we can't declare the argument
551 extern char *re_comp (const char *);
555 extern void symbol_file_command (char *, int);
557 /* Remote targets may wish to use this as their load function. */
558 extern void generic_load (char *name, int from_tty);
560 /* Report on STREAM the performance of memory transfer operation,
562 DATA_COUNT is the number of bytes transferred.
563 WRITE_COUNT is the number of separate write operations, or 0,
564 if that information is not available.
565 START_TIME is the time at which an operation was started.
566 END_TIME is the time at which an operation ended. */
568 extern void print_transfer_performance (struct ui_file *stream,
569 unsigned long data_count,
570 unsigned long write_count,
571 const struct timeval *start_time,
572 const struct timeval *end_time);
576 typedef void initialize_file_ftype (void);
578 extern char *skip_quoted (char *);
580 extern char *gdb_readline (char *);
582 extern char *gdb_readline_wrapper (char *);
584 extern char *command_line_input (char *, int, char *);
586 extern void print_prompt (void);
588 extern int input_from_terminal_p (void);
590 extern int info_verbose;
592 /* From printcmd.c */
594 extern void set_next_address (struct gdbarch *, CORE_ADDR);
596 extern void print_address_symbolic (struct gdbarch *, CORE_ADDR,
597 struct ui_file *, int, char *);
599 extern int build_address_symbolic (struct gdbarch *,
608 extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *);
609 extern const char *pc_prefix (CORE_ADDR);
613 #define OPF_TRY_CWD_FIRST 0x01
614 #define OPF_SEARCH_IN_PATH 0x02
616 extern int openp (const char *, int, const char *, int, char **);
618 extern int source_full_path_of (const char *, char **);
620 extern void mod_path (char *, char **);
622 extern void add_path (char *, char **, int);
624 extern void directory_command (char *, int);
626 extern void directory_switch (char *, int);
628 extern char *source_path;
630 extern void init_source_path (void);
634 /* Take over the 'find_mapped_memory' vector from exec.c. */
635 extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR,
641 /* Possible lvalue types. Like enum language, this should be in
642 value.h, but needs to be here for the same reason. */
650 /* In a register. Registers are relative to a frame. */
652 /* In a gdb internal variable. */
654 /* Part of a gdb internal variable (structure field). */
655 lval_internalvar_component,
656 /* Value's bits are fetched and stored using functions provided by
661 /* Control types for commands */
663 enum misc_command_type
671 enum command_control_type
680 while_stepping_control,
684 /* Structure for saved commands lines
685 (for breakpoints, defined commands, etc). */
689 struct command_line *next;
691 enum command_control_type control_type;
692 /* The number of elements in body_list. */
694 /* For composite commands, the nested lists of
695 commands. For example, for "if" command this
696 will contain the then branch and the else
697 branch, if that is available. */
698 struct command_line **body_list;
701 extern struct command_line *read_command_lines (char *, int, int,
702 void (*)(char *, void *),
704 extern struct command_line *read_command_lines_1 (char * (*) (void), int,
705 void (*)(char *, void *),
708 extern void free_command_lines (struct command_line **);
710 /* To continue the execution commands when running gdb asynchronously.
711 A continuation structure contains a pointer to a function to be called
712 to finish the command, once the target has stopped. Such mechanism is
713 used by the finish and until commands, and in the remote protocol
714 when opening an extended-remote connection. */
722 /* Thread specific continuations. */
724 extern void add_continuation (struct thread_info *,
725 void (*)(void *), void *,
727 extern void do_all_continuations (void);
728 extern void do_all_continuations_thread (struct thread_info *);
729 extern void discard_all_continuations (void);
730 extern void discard_all_continuations_thread (struct thread_info *);
732 extern void add_intermediate_continuation (struct thread_info *,
733 void (*)(void *), void *,
735 extern void do_all_intermediate_continuations (void);
736 extern void do_all_intermediate_continuations_thread (struct thread_info *);
737 extern void discard_all_intermediate_continuations (void);
738 extern void discard_all_intermediate_continuations_thread (struct thread_info *);
740 /* Inferior specific (any thread) continuations. */
742 extern void add_inferior_continuation (void (*) (void *),
745 extern void do_all_inferior_continuations (void);
746 extern void discard_all_inferior_continuations (struct inferior *inf);
748 /* String containing the current directory (what getwd would return). */
750 extern char *current_directory;
752 /* Default radixes for input and output. Only some values supported. */
753 extern unsigned input_radix;
754 extern unsigned output_radix;
756 /* Possibilities for prettyprint parameters to routines which print
757 things. Like enum language, this should be in value.h, but needs
758 to be here for the same reason. FIXME: If we can eliminate this
759 as an arg to LA_VAL_PRINT, then we can probably move it back to
764 Val_no_prettyprint = 0,
766 /* Use the default setting which the user has specified. */
770 /* The ptid struct is a collection of the various "ids" necessary
771 for identifying the inferior. This consists of the process id
772 (pid), thread id (tid), and other fields necessary for uniquely
773 identifying the inferior process/thread being debugged. When
774 manipulating ptids, the constructors, accessors, and predicate
775 declared in inferior.h should be used. These are as follows:
777 ptid_build - Make a new ptid from a pid, lwp, and tid.
778 pid_to_ptid - Make a new ptid from just a pid.
779 ptid_get_pid - Fetch the pid component of a ptid.
780 ptid_get_lwp - Fetch the lwp component of a ptid.
781 ptid_get_tid - Fetch the tid component of a ptid.
782 ptid_equal - Test to see if two ptids are equal.
783 ptid_is_pid - Test to see if this ptid represents a process id.
785 Please do NOT access the struct ptid members directly (except, of
786 course, in the implementation of the above ptid manipulation
794 /* Lightweight process id */
801 typedef struct ptid ptid_t;
805 /* Optional native machine support. Non-native (and possibly pure
806 multi-arch) targets do not need a "nm.h" file. This will be a
807 symlink to one of the nm-*.h files, built by the `configure'
814 /* Assume that fopen accepts the letter "b" in the mode string.
815 It is demanded by ISO C9X, and should be supported on all
816 platforms that claim to have a standard-conforming C library. On
817 true POSIX systems it will be ignored and have no effect. There
818 may still be systems without a standard-conforming C library where
819 an ISO C9X compiler (GCC) is available. Known examples are SunOS
820 4.x and 4.3BSD. This assumption means these systems are no longer
823 # include "fopen-bin.h"
826 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
827 FIXME: Assumes 2's complement arithmetic */
829 #if !defined (UINT_MAX)
830 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
833 #if !defined (INT_MAX)
834 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
837 #if !defined (INT_MIN)
838 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
841 #if !defined (ULONG_MAX)
842 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
845 #if !defined (LONG_MAX)
846 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
849 #if !defined (ULONGEST_MAX)
850 #define ULONGEST_MAX (~(ULONGEST)0) /* 0xFFFFFFFFFFFFFFFF for 64-bits */
853 #if !defined (LONGEST_MAX) /* 0x7FFFFFFFFFFFFFFF for 64-bits */
854 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
857 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
858 arguments to a function, number in a value history, register number, etc.)
859 where the value must not be larger than can fit in an int. */
861 extern int longest_to_int (LONGEST);
863 /* Assorted functions we can declare, now that const and volatile are
866 extern char *savestring (const char *, size_t);
868 /* xmalloc(), xrealloc() and xcalloc() have already been declared in
870 extern void xfree (void *);
872 /* Like xmalloc, but zero the memory. */
873 extern void *xzalloc (size_t);
875 /* Utility macros to allocate typed memory. Avoids errors like:
876 struct foo *foo = xmalloc (sizeof struct bar); and memset (foo,
877 sizeof (struct foo), 0). */
878 #define XZALLOC(TYPE) ((TYPE*) xzalloc (sizeof (TYPE)))
879 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
880 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE)))
882 /* Like asprintf/vasprintf but get an internal_error if the call
884 extern void xasprintf (char **ret, const char *format, ...) ATTRIBUTE_PRINTF (2, 3);
885 extern void xvasprintf (char **ret, const char *format, va_list ap)
886 ATTRIBUTE_PRINTF (2, 0);
888 /* Like asprintf and vasprintf, but return the string, throw an error
890 extern char *xstrprintf (const char *format, ...) ATTRIBUTE_PRINTF (1, 2);
891 extern char *xstrvprintf (const char *format, va_list ap)
892 ATTRIBUTE_PRINTF (1, 0);
894 /* Like snprintf, but throw an error if the output buffer is too small. */
895 extern int xsnprintf (char *str, size_t size, const char *format, ...)
896 ATTRIBUTE_PRINTF (3, 4);
898 extern int parse_escape (struct gdbarch *, char **);
900 /* Message to be printed before the error message, when an error occurs. */
902 extern char *error_pre_print;
904 /* Message to be printed before the error message, when an error occurs. */
906 extern char *quit_pre_print;
908 /* Message to be printed before the warning message, when a warning occurs. */
910 extern char *warning_pre_print;
912 extern void verror (const char *fmt, va_list ap)
913 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 0);
915 extern void error (const char *fmt, ...)
916 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2);
918 extern void error_stream (struct ui_file *) ATTRIBUTE_NORETURN;
920 extern void vfatal (const char *fmt, va_list ap)
921 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 0);
923 extern void fatal (const char *fmt, ...)
924 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2);
926 extern void internal_verror (const char *file, int line, const char *,
928 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (3, 0);
930 extern void internal_error (const char *file, int line, const char *, ...)
931 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (3, 4);
933 extern void internal_vwarning (const char *file, int line,
934 const char *, va_list ap)
935 ATTRIBUTE_PRINTF (3, 0);
937 extern void internal_warning (const char *file, int line,
938 const char *, ...) ATTRIBUTE_PRINTF (3, 4);
940 extern void nomem (long) ATTRIBUTE_NORETURN;
942 extern void warning (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
944 extern void vwarning (const char *, va_list args) ATTRIBUTE_PRINTF (1, 0);
946 /* List of known OS ABIs. If you change this, make sure to update the
950 GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info. */
952 GDB_OSABI_UNKNOWN = 0, /* keep this zero */
959 GDB_OSABI_FREEBSD_AOUT,
960 GDB_OSABI_FREEBSD_ELF,
961 GDB_OSABI_NETBSD_AOUT,
962 GDB_OSABI_NETBSD_ELF,
963 GDB_OSABI_OPENBSD_ELF,
978 GDB_OSABI_INVALID /* keep this last */
981 /* Global functions from other, non-gdb GNU thingies.
982 Libiberty thingies are no longer declared here. We include libiberty.h
985 /* From other system libraries */
995 #define min(a, b) ((a) < (b) ? (a) : (b))
998 #define max(a, b) ((a) > (b) ? (a) : (b))
1003 extern double atof (const char *); /* X3.159-1989 4.10.1.1 */
1006 /* Various possibilities for alloca. */
1009 #define alloca __builtin_alloca
1010 #else /* Not GNU C */
1011 #ifdef HAVE_ALLOCA_H
1018 /* We need to be careful not to declare this in a way which conflicts with
1019 bison. Bison never declares it as char *, but under various circumstances
1020 (like __hpux) we need to use void *. */
1021 extern void *alloca ();
1022 #endif /* Not _AIX */
1023 #endif /* Not HAVE_ALLOCA_H */
1024 #endif /* Not GNU C */
1025 #endif /* alloca not defined */
1027 /* Dynamic target-system-dependent parameters for GDB. */
1028 #include "gdbarch.h"
1030 /* Maximum size of a register. Something small, but large enough for
1031 all known ISAs. If it turns out to be too small, make it bigger. */
1033 enum { MAX_REGISTER_SIZE = 32 };
1035 /* Static target-system-dependent parameters for GDB. */
1037 /* Number of bits in a char or unsigned char for the target machine.
1038 Just like CHAR_BIT in <limits.h> but describes the target machine. */
1039 #if !defined (TARGET_CHAR_BIT)
1040 #define TARGET_CHAR_BIT 8
1043 /* If we picked up a copy of CHAR_BIT from a configuration file
1044 (which may get it by including <limits.h>) then use it to set
1045 the number of bits in a host char. If not, use the same size
1048 #if defined (CHAR_BIT)
1049 #define HOST_CHAR_BIT CHAR_BIT
1051 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1056 extern LONGEST extract_signed_integer (const gdb_byte *, int,
1059 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int,
1062 extern int extract_long_unsigned_integer (const gdb_byte *, int,
1063 enum bfd_endian, LONGEST *);
1065 extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
1068 extern void store_signed_integer (gdb_byte *, int,
1069 enum bfd_endian, LONGEST);
1071 extern void store_unsigned_integer (gdb_byte *, int,
1072 enum bfd_endian, ULONGEST);
1074 extern void store_typed_address (gdb_byte *buf, struct type *type,
1080 extern int watchdog;
1082 /* Hooks for alternate command interfaces. */
1084 /* The name of the interpreter if specified on the command line. */
1085 extern char *interpreter_p;
1087 /* If a given interpreter matches INTERPRETER_P then it should update
1088 deprecated_command_loop_hook and deprecated_init_ui_hook with the
1089 per-interpreter implementation. */
1090 /* FIXME: deprecated_command_loop_hook and deprecated_init_ui_hook
1091 should be moved here. */
1093 struct target_waitstatus;
1094 struct cmd_list_element;
1096 extern void (*deprecated_pre_add_symbol_hook) (const char *);
1097 extern void (*deprecated_post_add_symbol_hook) (void);
1098 extern void (*selected_frame_level_changed_hook) (int);
1099 extern int (*deprecated_ui_loop_hook) (int signo);
1100 extern void (*deprecated_init_ui_hook) (char *argv0);
1101 extern void (*deprecated_command_loop_hook) (void);
1102 extern void (*deprecated_show_load_progress) (const char *section,
1103 unsigned long section_sent,
1104 unsigned long section_size,
1105 unsigned long total_sent,
1106 unsigned long total_size);
1107 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
1108 int line, int stopline,
1110 extern int (*deprecated_query_hook) (const char *, va_list)
1111 ATTRIBUTE_FPTR_PRINTF(1,0);
1112 extern void (*deprecated_warning_hook) (const char *, va_list)
1113 ATTRIBUTE_FPTR_PRINTF(1,0);
1114 extern void (*deprecated_flush_hook) (struct ui_file * stream);
1115 extern void (*deprecated_interactive_hook) (void);
1116 extern void (*deprecated_readline_begin_hook) (char *, ...)
1117 ATTRIBUTE_FPTR_PRINTF_1;
1118 extern char *(*deprecated_readline_hook) (char *);
1119 extern void (*deprecated_readline_end_hook) (void);
1120 extern void (*deprecated_register_changed_hook) (int regno);
1121 extern void (*deprecated_context_hook) (int);
1122 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
1123 struct target_waitstatus *status,
1126 extern void (*deprecated_attach_hook) (void);
1127 extern void (*deprecated_detach_hook) (void);
1128 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
1129 char *cmd, int from_tty);
1131 extern void (*deprecated_set_hook) (struct cmd_list_element * c);
1133 extern void (*deprecated_error_begin_hook) (void);
1135 extern int (*deprecated_ui_load_progress_hook) (const char *section,
1139 /* Inhibit window interface if non-zero. */
1141 extern int use_windows;
1143 /* Definitions of filename-related things. */
1145 /* Host specific things. */
1149 # define GLOBAL_CURDIR
1150 # define DIRNAME_SEPARATOR ';'
1153 #if !defined (__CYGWIN__) && defined (_WIN32)
1154 # define DIRNAME_SEPARATOR ';'
1157 #ifndef DIRNAME_SEPARATOR
1158 #define DIRNAME_SEPARATOR ':'
1161 #ifndef SLASH_STRING
1162 #define SLASH_STRING "/"
1165 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
1166 The name ``TIDGET'' is a historical accident. Many uses of TIDGET
1167 in the code actually refer to a lightweight process id, i.e,
1168 something that can be considered a process id in its own right for
1169 certain purposes. */
1172 #define PIDGET(PTID) (ptid_get_pid (PTID))
1173 #define TIDGET(PTID) (ptid_get_lwp (PTID))
1174 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
1177 /* Define well known filenos if the system does not define them. */
1178 #ifndef STDIN_FILENO
1179 #define STDIN_FILENO 0
1181 #ifndef STDOUT_FILENO
1182 #define STDOUT_FILENO 1
1184 #ifndef STDERR_FILENO
1185 #define STDERR_FILENO 2
1188 /* If this definition isn't overridden by the header files, assume
1189 that isatty and fileno exist on this system. */
1191 #define ISATTY(FP) (isatty (fileno (FP)))
1194 /* Ensure that V is aligned to an N byte boundary (B's assumed to be a
1195 power of 2). Round up/down when necessary. Examples of correct
1198 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
1199 write_memory (addr, value, len);
1204 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
1205 write_memory (sp, value, len);
1207 Note that uses such as:
1209 write_memory (addr, value, len);
1210 addr += align_up (len, 8);
1214 sp -= align_up (len, 8);
1215 write_memory (sp, value, len);
1217 are typically not correct as they don't ensure that the address (SP
1218 or ADDR) is correctly aligned (relying on previous alignment to
1219 keep things right). This is also why the methods are called
1220 "align_..." instead of "round_..." as the latter reads better with
1221 this incorrect coding style. */
1223 extern ULONGEST align_up (ULONGEST v, int n);
1224 extern ULONGEST align_down (ULONGEST v, int n);
1226 /* Allocation and deallocation functions for the libiberty hash table
1227 which use obstacks. */
1228 void *hashtab_obstack_allocate (void *data, size_t size, size_t count);
1229 void dummy_obstack_deallocate (void *object, void *data);
1231 /* From progspace.c */
1233 extern void initialize_progspace (void);
1234 extern void initialize_inferiors (void);
1236 /* For DragonFly kgdb */
1238 extern int kernel_debugger;
1240 #endif /* #ifndef DEFS_H */