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);
356 extern struct cleanup *make_cleanup_unpush_target (struct target_ops *ops);
358 extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
360 extern struct cleanup *make_my_cleanup (struct cleanup **,
361 make_cleanup_ftype *, void *);
363 extern struct cleanup *make_my_cleanup2 (struct cleanup **,
364 make_cleanup_ftype *, void *,
365 void (*free_arg) (void *));
367 extern struct cleanup *save_cleanups (void);
368 extern struct cleanup *save_final_cleanups (void);
369 extern struct cleanup *save_my_cleanups (struct cleanup **);
371 extern void restore_cleanups (struct cleanup *);
372 extern void restore_final_cleanups (struct cleanup *);
373 extern void restore_my_cleanups (struct cleanup **, struct cleanup *);
375 extern void free_current_contents (void *);
377 extern void null_cleanup (void *);
379 extern struct cleanup *make_command_stats_cleanup (int);
381 extern int myread (int, char *, int);
383 extern int query (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
384 extern int nquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
385 extern int yquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
387 extern void init_page_info (void);
389 extern char *gdb_realpath (const char *);
390 extern char *xfullpath (const char *);
392 extern unsigned long gnu_debuglink_crc32 (unsigned long crc,
393 unsigned char *buf, size_t len);
395 ULONGEST strtoulst (const char *num, const char **trailer, int base);
397 char *ldirname (const char *filename);
399 char **gdb_buildargv (const char *);
401 int compare_positive_ints (const void *ap, const void *bp);
403 /* A wrapper for bfd_errmsg to produce a more helpful error message
404 in the case of bfd_error_file_ambiguously recognized.
405 MATCHING, if non-NULL, is the corresponding argument to
406 bfd_check_format_matches, and will be freed. */
408 extern const char *gdb_bfd_errmsg (bfd_error_type error_tag, char **matching);
410 extern int parse_pid_to_attach (char *args);
412 /* From demangle.c */
414 extern void set_demangling_style (char *);
417 /* Annotation stuff. */
419 extern int annotation_level; /* in stack.c */
421 extern void begin_line (void);
423 extern void wrap_here (char *);
425 extern void reinitialize_more_filter (void);
428 extern struct ui_file *gdb_stdout;
430 extern struct ui_file *gdb_stdin;
431 /* Serious error notifications */
432 extern struct ui_file *gdb_stderr;
433 /* Log/debug/trace messages that should bypass normal stdout/stderr
434 filtering. For moment, always call this stream using
435 *_unfiltered. In the very near future that restriction shall be
436 removed - either call shall be unfiltered. (cagney 1999-06-13). */
437 extern struct ui_file *gdb_stdlog;
438 /* Target output that should bypass normal stdout/stderr filtering.
439 For moment, always call this stream using *_unfiltered. In the
440 very near future that restriction shall be removed - either call
441 shall be unfiltered. (cagney 1999-07-02). */
442 extern struct ui_file *gdb_stdtarg;
443 extern struct ui_file *gdb_stdtargerr;
444 extern struct ui_file *gdb_stdtargin;
448 /* More generic printf like operations. Filtered versions may return
449 non-locally on error. */
451 extern void fputs_filtered (const char *, struct ui_file *);
453 extern void fputs_unfiltered (const char *, struct ui_file *);
455 extern int fputc_filtered (int c, struct ui_file *);
457 extern int fputc_unfiltered (int c, struct ui_file *);
459 extern int putchar_filtered (int c);
461 extern int putchar_unfiltered (int c);
463 extern void puts_filtered (const char *);
465 extern void puts_unfiltered (const char *);
467 extern void puts_filtered_tabular (char *string, int width, int right);
469 extern void puts_debug (char *prefix, char *string, char *suffix);
471 extern void vprintf_filtered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
473 extern void vfprintf_filtered (struct ui_file *, const char *, va_list) ATTRIBUTE_PRINTF (2, 0);
475 extern void fprintf_filtered (struct ui_file *, const char *, ...) ATTRIBUTE_PRINTF (2, 3);
477 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) ATTRIBUTE_PRINTF (3, 4);
479 extern void printf_filtered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
481 extern void printfi_filtered (int, const char *, ...) ATTRIBUTE_PRINTF (2, 3);
483 extern void vprintf_unfiltered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
485 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) ATTRIBUTE_PRINTF (2, 0);
487 extern void fprintf_unfiltered (struct ui_file *, const char *, ...) ATTRIBUTE_PRINTF (2, 3);
489 extern void printf_unfiltered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
491 extern void print_spaces (int, struct ui_file *);
493 extern void print_spaces_filtered (int, struct ui_file *);
495 extern char *n_spaces (int);
497 extern void fputstr_filtered (const char *str, int quotr, struct ui_file * stream);
499 extern void fputstr_unfiltered (const char *str, int quotr, struct ui_file * stream);
501 extern void fputstrn_filtered (const char *str, int n, int quotr, struct ui_file * stream);
503 extern void fputstrn_unfiltered (const char *str, int n, int quotr, struct ui_file * stream);
505 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
506 extern void gdb_print_host_address (const void *addr, struct ui_file *stream);
508 extern const char *host_address_to_string (const void *addr);
510 /* Convert CORE_ADDR to string in platform-specific manner.
511 This is usually formatted similar to 0x%lx. */
512 extern const char *paddress (struct gdbarch *gdbarch, CORE_ADDR addr);
515 extern char *plongest (LONGEST l);
516 /* %u for ULONGEST */
517 extern char *pulongest (ULONGEST l);
519 extern char *phex (ULONGEST l, int sizeof_l);
520 extern char *phex_nz (ULONGEST l, int sizeof_l);
521 extern char *int_string (LONGEST, int, int, int, int);
523 /* Convert a CORE_ADDR into a HEX string with leading zeros.
524 The output from core_addr_to_string() can be passed direct to
525 string_to_core_addr(). */
526 extern const char *core_addr_to_string (const CORE_ADDR addr);
527 extern const char *core_addr_to_string_nz (const CORE_ADDR addr);
528 extern CORE_ADDR string_to_core_addr (const char *my_string);
530 /* Return a string that contains a number formatted as a hex
532 extern char *hex_string (LONGEST);
533 extern char *hex_string_custom (LONGEST, int);
535 extern void fprintf_symbol_filtered (struct ui_file *, char *,
538 extern void perror_with_name (const char *) ATTRIBUTE_NORETURN;
540 extern void print_sys_errmsg (const char *, int);
542 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
543 "const char *" in unistd.h, so we can't declare the argument
546 extern char *re_comp (const char *);
550 extern void symbol_file_command (char *, int);
552 /* Remote targets may wish to use this as their load function. */
553 extern void generic_load (char *name, int from_tty);
555 /* Report on STREAM the performance of memory transfer operation,
557 DATA_COUNT is the number of bytes transferred.
558 WRITE_COUNT is the number of separate write operations, or 0,
559 if that information is not available.
560 START_TIME is the time at which an operation was started.
561 END_TIME is the time at which an operation ended. */
563 extern void print_transfer_performance (struct ui_file *stream,
564 unsigned long data_count,
565 unsigned long write_count,
566 const struct timeval *start_time,
567 const struct timeval *end_time);
571 typedef void initialize_file_ftype (void);
573 extern char *skip_quoted (char *);
575 extern char *gdb_readline (char *);
577 extern char *gdb_readline_wrapper (char *);
579 extern char *command_line_input (char *, int, char *);
581 extern void print_prompt (void);
583 extern int input_from_terminal_p (void);
585 extern int info_verbose;
587 /* From printcmd.c */
589 extern void set_next_address (struct gdbarch *, CORE_ADDR);
591 extern void print_address_symbolic (struct gdbarch *, CORE_ADDR,
592 struct ui_file *, int, char *);
594 extern int build_address_symbolic (struct gdbarch *,
603 extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *);
604 extern const char *pc_prefix (CORE_ADDR);
608 #define OPF_TRY_CWD_FIRST 0x01
609 #define OPF_SEARCH_IN_PATH 0x02
611 extern int openp (const char *, int, const char *, int, char **);
613 extern int source_full_path_of (const char *, char **);
615 extern void mod_path (char *, char **);
617 extern void add_path (char *, char **, int);
619 extern void directory_command (char *, int);
621 extern void directory_switch (char *, int);
623 extern char *source_path;
625 extern void init_source_path (void);
629 /* Take over the 'find_mapped_memory' vector from exec.c. */
630 extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR,
636 /* Possible lvalue types. Like enum language, this should be in
637 value.h, but needs to be here for the same reason. */
645 /* In a register. Registers are relative to a frame. */
647 /* In a gdb internal variable. */
649 /* Part of a gdb internal variable (structure field). */
650 lval_internalvar_component,
651 /* Value's bits are fetched and stored using functions provided by
656 /* Control types for commands */
658 enum misc_command_type
666 enum command_control_type
675 while_stepping_control,
679 /* Structure for saved commands lines
680 (for breakpoints, defined commands, etc). */
684 struct command_line *next;
686 enum command_control_type control_type;
687 /* The number of elements in body_list. */
689 /* For composite commands, the nested lists of
690 commands. For example, for "if" command this
691 will contain the then branch and the else
692 branch, if that is available. */
693 struct command_line **body_list;
696 extern struct command_line *read_command_lines (char *, int, int,
697 void (*)(char *, void *),
699 extern struct command_line *read_command_lines_1 (char * (*) (void), int,
700 void (*)(char *, void *),
703 extern void free_command_lines (struct command_line **);
705 /* To continue the execution commands when running gdb asynchronously.
706 A continuation structure contains a pointer to a function to be called
707 to finish the command, once the target has stopped. Such mechanism is
708 used by the finish and until commands, and in the remote protocol
709 when opening an extended-remote connection. */
717 /* Thread specific continuations. */
719 extern void add_continuation (struct thread_info *,
720 void (*)(void *), void *,
722 extern void do_all_continuations (void);
723 extern void do_all_continuations_thread (struct thread_info *);
724 extern void discard_all_continuations (void);
725 extern void discard_all_continuations_thread (struct thread_info *);
727 extern void add_intermediate_continuation (struct thread_info *,
728 void (*)(void *), void *,
730 extern void do_all_intermediate_continuations (void);
731 extern void do_all_intermediate_continuations_thread (struct thread_info *);
732 extern void discard_all_intermediate_continuations (void);
733 extern void discard_all_intermediate_continuations_thread (struct thread_info *);
735 /* Inferior specific (any thread) continuations. */
737 extern void add_inferior_continuation (void (*) (void *),
740 extern void do_all_inferior_continuations (void);
741 extern void discard_all_inferior_continuations (struct inferior *inf);
743 /* String containing the current directory (what getwd would return). */
745 extern char *current_directory;
747 /* Default radixes for input and output. Only some values supported. */
748 extern unsigned input_radix;
749 extern unsigned output_radix;
751 /* Possibilities for prettyprint parameters to routines which print
752 things. Like enum language, this should be in value.h, but needs
753 to be here for the same reason. FIXME: If we can eliminate this
754 as an arg to LA_VAL_PRINT, then we can probably move it back to
759 Val_no_prettyprint = 0,
761 /* Use the default setting which the user has specified. */
765 /* The ptid struct is a collection of the various "ids" necessary
766 for identifying the inferior. This consists of the process id
767 (pid), thread id (tid), and other fields necessary for uniquely
768 identifying the inferior process/thread being debugged. When
769 manipulating ptids, the constructors, accessors, and predicate
770 declared in inferior.h should be used. These are as follows:
772 ptid_build - Make a new ptid from a pid, lwp, and tid.
773 pid_to_ptid - Make a new ptid from just a pid.
774 ptid_get_pid - Fetch the pid component of a ptid.
775 ptid_get_lwp - Fetch the lwp component of a ptid.
776 ptid_get_tid - Fetch the tid component of a ptid.
777 ptid_equal - Test to see if two ptids are equal.
778 ptid_is_pid - Test to see if this ptid represents a process id.
780 Please do NOT access the struct ptid members directly (except, of
781 course, in the implementation of the above ptid manipulation
789 /* Lightweight process id */
796 typedef struct ptid ptid_t;
800 /* Optional native machine support. Non-native (and possibly pure
801 multi-arch) targets do not need a "nm.h" file. This will be a
802 symlink to one of the nm-*.h files, built by the `configure'
809 /* Assume that fopen accepts the letter "b" in the mode string.
810 It is demanded by ISO C9X, and should be supported on all
811 platforms that claim to have a standard-conforming C library. On
812 true POSIX systems it will be ignored and have no effect. There
813 may still be systems without a standard-conforming C library where
814 an ISO C9X compiler (GCC) is available. Known examples are SunOS
815 4.x and 4.3BSD. This assumption means these systems are no longer
818 # include "fopen-bin.h"
821 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
822 FIXME: Assumes 2's complement arithmetic */
824 #if !defined (UINT_MAX)
825 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
828 #if !defined (INT_MAX)
829 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
832 #if !defined (INT_MIN)
833 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
836 #if !defined (ULONG_MAX)
837 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
840 #if !defined (LONG_MAX)
841 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
844 #if !defined (ULONGEST_MAX)
845 #define ULONGEST_MAX (~(ULONGEST)0) /* 0xFFFFFFFFFFFFFFFF for 64-bits */
848 #if !defined (LONGEST_MAX) /* 0x7FFFFFFFFFFFFFFF for 64-bits */
849 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
852 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
853 arguments to a function, number in a value history, register number, etc.)
854 where the value must not be larger than can fit in an int. */
856 extern int longest_to_int (LONGEST);
858 /* Assorted functions we can declare, now that const and volatile are
861 extern char *savestring (const char *, size_t);
863 /* xmalloc(), xrealloc() and xcalloc() have already been declared in
865 extern void xfree (void *);
867 /* Like xmalloc, but zero the memory. */
868 extern void *xzalloc (size_t);
870 /* Utility macros to allocate typed memory. Avoids errors like:
871 struct foo *foo = xmalloc (sizeof struct bar); and memset (foo,
872 sizeof (struct foo), 0). */
873 #define XZALLOC(TYPE) ((TYPE*) xzalloc (sizeof (TYPE)))
874 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
875 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE)))
877 /* Like asprintf/vasprintf but get an internal_error if the call
879 extern void xasprintf (char **ret, const char *format, ...) ATTRIBUTE_PRINTF (2, 3);
880 extern void xvasprintf (char **ret, const char *format, va_list ap)
881 ATTRIBUTE_PRINTF (2, 0);
883 /* Like asprintf and vasprintf, but return the string, throw an error
885 extern char *xstrprintf (const char *format, ...) ATTRIBUTE_PRINTF (1, 2);
886 extern char *xstrvprintf (const char *format, va_list ap)
887 ATTRIBUTE_PRINTF (1, 0);
889 /* Like snprintf, but throw an error if the output buffer is too small. */
890 extern int xsnprintf (char *str, size_t size, const char *format, ...)
891 ATTRIBUTE_PRINTF (3, 4);
893 extern int parse_escape (struct gdbarch *, char **);
895 /* Message to be printed before the error message, when an error occurs. */
897 extern char *error_pre_print;
899 /* Message to be printed before the error message, when an error occurs. */
901 extern char *quit_pre_print;
903 /* Message to be printed before the warning message, when a warning occurs. */
905 extern char *warning_pre_print;
907 extern void verror (const char *fmt, va_list ap)
908 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 0);
910 extern void error (const char *fmt, ...)
911 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2);
913 extern void error_stream (struct ui_file *) ATTRIBUTE_NORETURN;
915 extern void vfatal (const char *fmt, va_list ap)
916 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 0);
918 extern void fatal (const char *fmt, ...)
919 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2);
921 extern void internal_verror (const char *file, int line, const char *,
923 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (3, 0);
925 extern void internal_error (const char *file, int line, const char *, ...)
926 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (3, 4);
928 extern void internal_vwarning (const char *file, int line,
929 const char *, va_list ap)
930 ATTRIBUTE_PRINTF (3, 0);
932 extern void internal_warning (const char *file, int line,
933 const char *, ...) ATTRIBUTE_PRINTF (3, 4);
935 extern void nomem (long) ATTRIBUTE_NORETURN;
937 extern void warning (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
939 extern void vwarning (const char *, va_list args) ATTRIBUTE_PRINTF (1, 0);
941 /* List of known OS ABIs. If you change this, make sure to update the
945 GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info. */
947 GDB_OSABI_UNKNOWN = 0, /* keep this zero */
954 GDB_OSABI_FREEBSD_AOUT,
955 GDB_OSABI_FREEBSD_ELF,
956 GDB_OSABI_NETBSD_AOUT,
957 GDB_OSABI_NETBSD_ELF,
958 GDB_OSABI_OPENBSD_ELF,
972 GDB_OSABI_INVALID /* keep this last */
975 /* Global functions from other, non-gdb GNU thingies.
976 Libiberty thingies are no longer declared here. We include libiberty.h
979 /* From other system libraries */
989 #define min(a, b) ((a) < (b) ? (a) : (b))
992 #define max(a, b) ((a) > (b) ? (a) : (b))
997 extern double atof (const char *); /* X3.159-1989 4.10.1.1 */
1000 /* Various possibilities for alloca. */
1003 #define alloca __builtin_alloca
1004 #else /* Not GNU C */
1005 #ifdef HAVE_ALLOCA_H
1012 /* We need to be careful not to declare this in a way which conflicts with
1013 bison. Bison never declares it as char *, but under various circumstances
1014 (like __hpux) we need to use void *. */
1015 extern void *alloca ();
1016 #endif /* Not _AIX */
1017 #endif /* Not HAVE_ALLOCA_H */
1018 #endif /* Not GNU C */
1019 #endif /* alloca not defined */
1021 /* Dynamic target-system-dependent parameters for GDB. */
1022 #include "gdbarch.h"
1024 /* Maximum size of a register. Something small, but large enough for
1025 all known ISAs. If it turns out to be too small, make it bigger. */
1027 enum { MAX_REGISTER_SIZE = 32 };
1029 /* Static target-system-dependent parameters for GDB. */
1031 /* Number of bits in a char or unsigned char for the target machine.
1032 Just like CHAR_BIT in <limits.h> but describes the target machine. */
1033 #if !defined (TARGET_CHAR_BIT)
1034 #define TARGET_CHAR_BIT 8
1037 /* If we picked up a copy of CHAR_BIT from a configuration file
1038 (which may get it by including <limits.h>) then use it to set
1039 the number of bits in a host char. If not, use the same size
1042 #if defined (CHAR_BIT)
1043 #define HOST_CHAR_BIT CHAR_BIT
1045 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1050 extern LONGEST extract_signed_integer (const gdb_byte *, int,
1053 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int,
1056 extern int extract_long_unsigned_integer (const gdb_byte *, int,
1057 enum bfd_endian, LONGEST *);
1059 extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
1062 extern void store_signed_integer (gdb_byte *, int,
1063 enum bfd_endian, LONGEST);
1065 extern void store_unsigned_integer (gdb_byte *, int,
1066 enum bfd_endian, ULONGEST);
1068 extern void store_typed_address (gdb_byte *buf, struct type *type,
1074 extern int watchdog;
1076 /* Hooks for alternate command interfaces. */
1078 /* The name of the interpreter if specified on the command line. */
1079 extern char *interpreter_p;
1081 /* If a given interpreter matches INTERPRETER_P then it should update
1082 deprecated_command_loop_hook and deprecated_init_ui_hook with the
1083 per-interpreter implementation. */
1084 /* FIXME: deprecated_command_loop_hook and deprecated_init_ui_hook
1085 should be moved here. */
1087 struct target_waitstatus;
1088 struct cmd_list_element;
1090 extern void (*deprecated_pre_add_symbol_hook) (const char *);
1091 extern void (*deprecated_post_add_symbol_hook) (void);
1092 extern void (*selected_frame_level_changed_hook) (int);
1093 extern int (*deprecated_ui_loop_hook) (int signo);
1094 extern void (*deprecated_init_ui_hook) (char *argv0);
1095 extern void (*deprecated_command_loop_hook) (void);
1096 extern void (*deprecated_show_load_progress) (const char *section,
1097 unsigned long section_sent,
1098 unsigned long section_size,
1099 unsigned long total_sent,
1100 unsigned long total_size);
1101 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
1102 int line, int stopline,
1104 extern int (*deprecated_query_hook) (const char *, va_list)
1105 ATTRIBUTE_FPTR_PRINTF(1,0);
1106 extern void (*deprecated_warning_hook) (const char *, va_list)
1107 ATTRIBUTE_FPTR_PRINTF(1,0);
1108 extern void (*deprecated_flush_hook) (struct ui_file * stream);
1109 extern void (*deprecated_interactive_hook) (void);
1110 extern void (*deprecated_readline_begin_hook) (char *, ...)
1111 ATTRIBUTE_FPTR_PRINTF_1;
1112 extern char *(*deprecated_readline_hook) (char *);
1113 extern void (*deprecated_readline_end_hook) (void);
1114 extern void (*deprecated_register_changed_hook) (int regno);
1115 extern void (*deprecated_context_hook) (int);
1116 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
1117 struct target_waitstatus *status,
1120 extern void (*deprecated_attach_hook) (void);
1121 extern void (*deprecated_detach_hook) (void);
1122 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
1123 char *cmd, int from_tty);
1125 extern void (*deprecated_set_hook) (struct cmd_list_element * c);
1127 extern void (*deprecated_error_begin_hook) (void);
1129 extern int (*deprecated_ui_load_progress_hook) (const char *section,
1133 /* Inhibit window interface if non-zero. */
1135 extern int use_windows;
1137 /* Definitions of filename-related things. */
1139 /* Host specific things. */
1143 # define GLOBAL_CURDIR
1144 # define DIRNAME_SEPARATOR ';'
1147 #if !defined (__CYGWIN__) && defined (_WIN32)
1148 # define DIRNAME_SEPARATOR ';'
1151 #ifndef DIRNAME_SEPARATOR
1152 #define DIRNAME_SEPARATOR ':'
1155 #ifndef SLASH_STRING
1156 #define SLASH_STRING "/"
1159 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
1160 The name ``TIDGET'' is a historical accident. Many uses of TIDGET
1161 in the code actually refer to a lightweight process id, i.e,
1162 something that can be considered a process id in its own right for
1163 certain purposes. */
1166 #define PIDGET(PTID) (ptid_get_pid (PTID))
1167 #define TIDGET(PTID) (ptid_get_lwp (PTID))
1168 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
1171 /* Define well known filenos if the system does not define them. */
1172 #ifndef STDIN_FILENO
1173 #define STDIN_FILENO 0
1175 #ifndef STDOUT_FILENO
1176 #define STDOUT_FILENO 1
1178 #ifndef STDERR_FILENO
1179 #define STDERR_FILENO 2
1182 /* If this definition isn't overridden by the header files, assume
1183 that isatty and fileno exist on this system. */
1185 #define ISATTY(FP) (isatty (fileno (FP)))
1188 /* Ensure that V is aligned to an N byte boundary (B's assumed to be a
1189 power of 2). Round up/down when necessary. Examples of correct
1192 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
1193 write_memory (addr, value, len);
1198 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
1199 write_memory (sp, value, len);
1201 Note that uses such as:
1203 write_memory (addr, value, len);
1204 addr += align_up (len, 8);
1208 sp -= align_up (len, 8);
1209 write_memory (sp, value, len);
1211 are typically not correct as they don't ensure that the address (SP
1212 or ADDR) is correctly aligned (relying on previous alignment to
1213 keep things right). This is also why the methods are called
1214 "align_..." instead of "round_..." as the latter reads better with
1215 this incorrect coding style. */
1217 extern ULONGEST align_up (ULONGEST v, int n);
1218 extern ULONGEST align_down (ULONGEST v, int n);
1220 /* Allocation and deallocation functions for the libiberty hash table
1221 which use obstacks. */
1222 void *hashtab_obstack_allocate (void *data, size_t size, size_t count);
1223 void dummy_obstack_deallocate (void *object, void *data);
1225 /* From progspace.c */
1227 extern void initialize_progspace (void);
1228 extern void initialize_inferiors (void);
1230 #endif /* #ifndef DEFS_H */