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
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. */
42 /* First include ansidecl.h so we can use the various macro definitions
43 here and in all subsequent file inclusions. */
47 #include "gdb_locale.h"
49 /* For ``enum target_signal''. */
50 #include "gdb/signals.h"
52 /* Just in case they're not defined in stdio.h. */
61 /* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms.
62 It is used as an access modifier in calls to open(), where it acts
63 similarly to the "b" character in fopen()'s MODE argument. On Posix
64 platforms it should be a no-op, so it is defined as 0 here. This
65 ensures that the symbol may be used freely elsewhere in gdb. */
71 #include <stdarg.h> /* For va_list. */
73 #include "libiberty.h"
75 /* Rather than duplicate all the logic in BFD for figuring out what
76 types to use (which can be pretty complicated), symply define them
77 in terms of the corresponding type from BFD. */
81 /* A byte from the program being debugged. */
82 typedef bfd_byte gdb_byte
;
84 /* An address in the program being debugged. Host byte order. */
85 typedef bfd_vma CORE_ADDR
;
87 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
93 #define LONGEST BFD_HOST_64_BIT
94 #define ULONGEST BFD_HOST_U_64_BIT
98 #ifdef CC_HAS_LONG_LONG
99 #define LONGEST long long
100 #define ULONGEST unsigned long long
102 #ifdef BFD_HOST_64_BIT
103 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
104 (e.g. i386-windows) so try it. */
105 #define LONGEST BFD_HOST_64_BIT
106 #define ULONGEST BFD_HOST_U_64_BIT
109 #define ULONGEST unsigned long
113 #endif /* No BFD64 */
115 #endif /* ! LONGEST */
118 #define min(a, b) ((a) < (b) ? (a) : (b))
121 #define max(a, b) ((a) > (b) ? (a) : (b))
124 /* Macros to do string compares.
126 NOTE: cagney/2000-03-14:
128 While old code can continue to refer to these macros, new code is
129 probably better off using strcmp() directly vis: ``strcmp() == 0''
130 and ``strcmp() != 0''.
132 This is because modern compilers can directly inline strcmp()
133 making the original justification for these macros - avoid function
134 call overhead by pre-testing the first characters
135 (``*X==*Y?...:0'') - redundant.
137 ``Even if [...] testing the first character does have a modest
138 performance improvement, I'd rather that whenever a performance
139 issue is found that we spend the effort on algorithmic
140 optimizations than micro-optimizing.'' J.T. */
142 /* NOTE: cagney/2003-11-23: All instances of STREQ[N] covered by
143 testing GDB on a stabs system have been replaced by equivalent
144 str[n]cmp calls. To avoid the possability of introducing bugs when
145 making untested changes, the remaining references were deprecated
146 rather than replaced. */
148 /* DISCLAIMER: cagney/2003-11-23: Simplified definition of these
149 macros so that they just map directly onto strcmp equivalent. I'm
150 not responsible for any breakage due to code that relied on the old
151 underlying implementation. */
153 #define DEPRECATED_STREQ(a,b) (strcmp ((a), (b)) == 0)
154 #define DEPRECATED_STREQN(a,b,c) (strncmp ((a), (b), (c)) == 0)
156 /* Check if a character is one of the commonly used C++ marker characters. */
157 extern int is_cplus_marker (int);
159 /* enable xdb commands if set */
160 extern int xdb_commands
;
162 /* enable dbx commands if set */
163 extern int dbx_commands
;
165 /* System root path, used to find libraries etc. */
166 extern char *gdb_sysroot
;
168 /* Search path for separate debug files. */
169 extern char *debug_file_directory
;
171 extern int quit_flag
;
172 extern int immediate_quit
;
173 extern int sevenbit_strings
;
175 extern void quit (void);
177 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
178 benefits of having a ``QUIT'' macro rather than a function are
179 marginal. If the overhead of a QUIT function call is proving
180 significant then its calling frequency should probably be reduced
181 [kingdon]. A profile analyzing the current situtation is
185 /* do twice to force compiler warning */
186 #define QUIT_FIXME "FIXME"
187 #define QUIT_FIXME "ignoring redefinition of QUIT"
190 if (quit_flag) quit (); \
191 if (deprecated_interactive_hook) deprecated_interactive_hook (); \
195 /* Languages represented in the symbol table and elsewhere.
196 This should probably be in language.h, but since enum's can't
197 be forward declared to satisfy opaque references before their
198 actual definition, needs to be here. */
202 language_unknown
, /* Language not known */
203 language_auto
, /* Placeholder for automatic setting */
205 language_cplus
, /* C++ */
206 language_objc
, /* Objective-C */
207 language_java
, /* Java */
208 language_fortran
, /* Fortran */
209 language_m2
, /* Modula-2 */
210 language_asm
, /* Assembly language */
211 language_pascal
, /* Pascal */
212 language_ada
, /* Ada */
213 language_scm
, /* Guile Scheme */
214 language_minimal
, /* All other languages, minimal support only */
222 unspecified_precision
225 /* A generic, not quite boolean, enumeration. */
233 /* Potential ways that a function can return a value of a given type. */
234 enum return_value_convention
236 /* Where the return value has been squeezed into one or more
238 RETURN_VALUE_REGISTER_CONVENTION
,
239 /* Commonly known as the "struct return convention". The caller
240 passes an additional hidden first parameter to the caller. That
241 parameter contains the address at which the value being returned
242 should be stored. While typically, and historically, used for
243 large structs, this is convention is applied to values of many
245 RETURN_VALUE_STRUCT_CONVENTION
,
246 /* Like the "struct return convention" above, but where the ABI
247 guarantees that the called function stores the address at which
248 the value being returned is stored in a well-defined location,
249 such as a register or memory slot in the stack frame. Don't use
250 this if the ABI doesn't explicitly guarantees this. */
251 RETURN_VALUE_ABI_RETURNS_ADDRESS
,
252 /* Like the "struct return convention" above, but where the ABI
253 guarantees that the address at which the value being returned is
254 stored will be available in a well-defined location, such as a
255 register or memory slot in the stack frame. Don't use this if
256 the ABI doesn't explicitly guarantees this. */
257 RETURN_VALUE_ABI_PRESERVES_ADDRESS
,
260 /* the cleanup list records things that have to be undone
261 if an error happens (descriptors to be closed, memory to be freed, etc.)
262 Each link in the chain records a function to call and an
265 Use make_cleanup to add an element to the cleanup chain.
266 Use do_cleanups to do all cleanup actions back to a given
267 point in the chain. Use discard_cleanups to remove cleanups
268 from the chain back to a given point, not doing them. */
272 struct cleanup
*next
;
273 void (*function
) (void *);
278 /* The ability to declare that a function never returns is useful, but
279 not really required to compile GDB successfully, so the NORETURN and
280 ATTR_NORETURN macros normally expand into nothing. */
282 /* If compiling with older versions of GCC, a function may be declared
283 "volatile" to indicate that it does not return. */
286 #if defined(__GNUC__) \
287 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
288 #define NORETURN volatile
290 #define NORETURN /* nothing */
294 /* GCC 2.5 and later versions define a function attribute "noreturn",
295 which is the preferred way to declare that a function never returns.
296 However GCC 2.7 appears to be the first version in which this fully
297 works everywhere we use it. */
299 #ifndef ATTR_NORETURN
300 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
301 #define ATTR_NORETURN __attribute__ ((noreturn))
303 #define ATTR_NORETURN /* nothing */
308 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
309 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
311 #define ATTR_FORMAT(type, x, y) /* nothing */
315 /* Be conservative and use enum bitfields only with GCC.
316 This is copied from gcc 3.3.1, system.h. */
318 #if defined(__GNUC__) && (__GNUC__ >= 2)
319 #define ENUM_BITFIELD(TYPE) enum TYPE
321 #define ENUM_BITFIELD(TYPE) unsigned int
324 /* Needed for various prototypes */
332 extern void initialize_utils (void);
334 extern void notice_quit (void);
336 extern int strcmp_iw (const char *, const char *);
338 extern int strcmp_iw_ordered (const char *, const char *);
340 extern int streq (const char *, const char *);
342 extern int subset_compare (char *, char *);
344 extern char *safe_strerror (int);
346 #define ALL_CLEANUPS ((struct cleanup *)0)
348 extern void do_cleanups (struct cleanup
*);
349 extern void do_final_cleanups (struct cleanup
*);
350 extern void do_run_cleanups (struct cleanup
*);
351 extern void do_exec_cleanups (struct cleanup
*);
352 extern void do_exec_error_cleanups (struct cleanup
*);
354 extern void discard_cleanups (struct cleanup
*);
355 extern void discard_final_cleanups (struct cleanup
*);
356 extern void discard_exec_error_cleanups (struct cleanup
*);
357 extern void discard_my_cleanups (struct cleanup
**, struct cleanup
*);
359 /* NOTE: cagney/2000-03-04: This typedef is strictly for the
360 make_cleanup function declarations below. Do not use this typedef
361 as a cast when passing functions into the make_cleanup() code.
362 Instead either use a bounce function or add a wrapper function.
363 Calling a f(char*) function with f(void*) is non-portable. */
364 typedef void (make_cleanup_ftype
) (void *);
366 extern struct cleanup
*make_cleanup (make_cleanup_ftype
*, void *);
368 extern struct cleanup
*make_cleanup_freeargv (char **);
371 extern struct cleanup
*make_cleanup_ui_file_delete (struct ui_file
*);
373 struct section_addr_info
;
374 extern struct cleanup
*(make_cleanup_free_section_addr_info
375 (struct section_addr_info
*));
377 extern struct cleanup
*make_cleanup_close (int fd
);
379 extern struct cleanup
*make_cleanup_bfd_close (bfd
*abfd
);
381 extern struct cleanup
*make_final_cleanup (make_cleanup_ftype
*, void *);
383 extern struct cleanup
*make_my_cleanup (struct cleanup
**,
384 make_cleanup_ftype
*, void *);
386 extern struct cleanup
*make_run_cleanup (make_cleanup_ftype
*, void *);
388 extern struct cleanup
*make_exec_cleanup (make_cleanup_ftype
*, void *);
389 extern struct cleanup
*make_exec_error_cleanup (make_cleanup_ftype
*, void *);
391 extern struct cleanup
*save_cleanups (void);
392 extern struct cleanup
*save_final_cleanups (void);
393 extern struct cleanup
*save_my_cleanups (struct cleanup
**);
395 extern void restore_cleanups (struct cleanup
*);
396 extern void restore_final_cleanups (struct cleanup
*);
397 extern void restore_my_cleanups (struct cleanup
**, struct cleanup
*);
399 extern void free_current_contents (void *);
401 extern void null_cleanup (void *);
403 extern int myread (int, char *, int);
405 extern int query (const char *, ...) ATTR_FORMAT (printf
, 1, 2);
406 extern int nquery (const char *, ...) ATTR_FORMAT (printf
, 1, 2);
407 extern int yquery (const char *, ...) ATTR_FORMAT (printf
, 1, 2);
409 extern void init_page_info (void);
411 extern char *gdb_realpath (const char *);
412 extern char *xfullpath (const char *);
414 extern unsigned long gnu_debuglink_crc32 (unsigned long crc
,
415 unsigned char *buf
, size_t len
);
417 ULONGEST
strtoulst (const char *num
, const char **trailer
, int base
);
419 char *ldirname (const char *filename
);
421 /* From demangle.c */
423 extern void set_demangling_style (char *);
426 /* Annotation stuff. */
428 extern int annotation_level
; /* in stack.c */
430 extern void begin_line (void);
432 extern void wrap_here (char *);
434 extern void reinitialize_more_filter (void);
437 extern struct ui_file
*gdb_stdout
;
439 extern struct ui_file
*gdb_stdin
;
440 /* Serious error notifications */
441 extern struct ui_file
*gdb_stderr
;
442 /* Log/debug/trace messages that should bypass normal stdout/stderr
443 filtering. For moment, always call this stream using
444 *_unfiltered. In the very near future that restriction shall be
445 removed - either call shall be unfiltered. (cagney 1999-06-13). */
446 extern struct ui_file
*gdb_stdlog
;
447 /* Target output that should bypass normal stdout/stderr filtering.
448 For moment, always call this stream using *_unfiltered. In the
449 very near future that restriction shall be removed - either call
450 shall be unfiltered. (cagney 1999-07-02). */
451 extern struct ui_file
*gdb_stdtarg
;
452 extern struct ui_file
*gdb_stdtargerr
;
453 extern struct ui_file
*gdb_stdtargin
;
457 /* More generic printf like operations. Filtered versions may return
458 non-locally on error. */
460 extern void fputs_filtered (const char *, struct ui_file
*);
462 extern void fputs_unfiltered (const char *, struct ui_file
*);
464 extern int fputc_filtered (int c
, struct ui_file
*);
466 extern int fputc_unfiltered (int c
, struct ui_file
*);
468 extern int putchar_filtered (int c
);
470 extern int putchar_unfiltered (int c
);
472 extern void puts_filtered (const char *);
474 extern void puts_unfiltered (const char *);
476 extern void puts_filtered_tabular (char *string
, int width
, int right
);
478 extern void puts_debug (char *prefix
, char *string
, char *suffix
);
480 extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf
, 1, 0);
482 extern void vfprintf_filtered (struct ui_file
*, const char *, va_list) ATTR_FORMAT (printf
, 2, 0);
484 extern void fprintf_filtered (struct ui_file
*, const char *, ...) ATTR_FORMAT (printf
, 2, 3);
486 extern void fprintfi_filtered (int, struct ui_file
*, const char *, ...) ATTR_FORMAT (printf
, 3, 4);
488 extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf
, 1, 2);
490 extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf
, 2, 3);
492 extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf
, 1, 0);
494 extern void vfprintf_unfiltered (struct ui_file
*, const char *, va_list) ATTR_FORMAT (printf
, 2, 0);
496 extern void fprintf_unfiltered (struct ui_file
*, const char *, ...) ATTR_FORMAT (printf
, 2, 3);
498 extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf
, 1, 2);
500 extern void print_spaces (int, struct ui_file
*);
502 extern void print_spaces_filtered (int, struct ui_file
*);
504 extern char *n_spaces (int);
506 extern void fputstr_filtered (const char *str
, int quotr
, struct ui_file
* stream
);
508 extern void fputstr_unfiltered (const char *str
, int quotr
, struct ui_file
* stream
);
510 extern void fputstrn_filtered (const char *str
, int n
, int quotr
, struct ui_file
* stream
);
512 extern void fputstrn_unfiltered (const char *str
, int n
, int quotr
, struct ui_file
* stream
);
514 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
515 extern void gdb_print_host_address (const void *addr
, struct ui_file
*stream
);
517 /* Convert a CORE_ADDR into a HEX string. paddr() is like %08lx.
518 paddr_nz() is like %lx. paddr_u() is like %lu. paddr_width() is
520 extern int strlen_paddr (void);
521 extern char *paddr (CORE_ADDR addr
);
522 extern char *paddr_nz (CORE_ADDR addr
);
523 extern char *paddr_u (CORE_ADDR addr
);
524 extern char *paddr_d (LONGEST addr
);
526 /* Like 0x%lx, replaces deprecated_print_address_numeric. */
527 extern const char *paddress (CORE_ADDR addr
);
529 extern char *phex (ULONGEST l
, int sizeof_l
);
530 extern char *phex_nz (ULONGEST l
, int sizeof_l
);
531 extern char *int_string (LONGEST
, int, int, int, int);
533 /* Like paddr() only print/scan raw CORE_ADDR. The output from
534 core_addr_to_string() can be passed direct to
535 string_to_core_addr(). */
536 extern const char *core_addr_to_string (const CORE_ADDR addr
);
537 extern const char *core_addr_to_string_nz (const CORE_ADDR addr
);
538 extern CORE_ADDR
string_to_core_addr (const char *my_string
);
540 /* Return a string that contains a number formatted as a hex
542 extern char *hex_string (LONGEST
);
543 extern char *hex_string_custom (LONGEST
, int);
545 extern void fprintf_symbol_filtered (struct ui_file
*, char *,
548 extern NORETURN
void perror_with_name (const char *) ATTR_NORETURN
;
550 extern void print_sys_errmsg (const char *, int);
552 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
553 "const char *" in unistd.h, so we can't declare the argument
556 extern char *re_comp (const char *);
560 extern void symbol_file_command (char *, int);
562 /* Remote targets may wish to use this as their load function. */
563 extern void generic_load (char *name
, int from_tty
);
565 /* Report on STREAM the performance of memory transfer operation,
567 DATA_COUNT is the number of bytes transferred.
568 WRITE_COUNT is the number of separate write operations, or 0,
569 if that information is not available.
570 START_TIME is the time at which an operation was started.
571 END_TIME is the time at which an operation ended. */
573 extern void print_transfer_performance (struct ui_file
*stream
,
574 unsigned long data_count
,
575 unsigned long write_count
,
576 const struct timeval
*start_time
,
577 const struct timeval
*end_time
);
581 typedef void initialize_file_ftype (void);
583 extern char *skip_quoted (char *);
585 extern char *gdb_readline (char *);
587 extern char *gdb_readline_wrapper (char *);
589 extern char *command_line_input (char *, int, char *);
591 extern void print_prompt (void);
593 extern int input_from_terminal_p (void);
595 extern int info_verbose
;
597 /* From printcmd.c */
599 extern void set_next_address (CORE_ADDR
);
601 extern void print_address_symbolic (CORE_ADDR
, struct ui_file
*, int,
604 extern int build_address_symbolic (CORE_ADDR addr
,
612 extern void deprecated_print_address_numeric (CORE_ADDR
, int, struct ui_file
*);
614 extern void print_address (CORE_ADDR
, struct ui_file
*);
618 #define OPF_TRY_CWD_FIRST 0x01
619 #define OPF_SEARCH_IN_PATH 0x02
621 extern int openp (const char *, int, const char *, int, int, char **);
623 extern int source_full_path_of (char *, char **);
625 extern void mod_path (char *, char **);
627 extern void add_path (char *, char **, int);
629 extern void directory_command (char *, int);
631 extern void directory_switch (char *, int);
633 extern char *source_path
;
635 extern void init_source_path (void);
637 extern void init_last_source_visited (void);
641 extern void exec_set_section_offsets (bfd_signed_vma text_off
,
642 bfd_signed_vma data_off
,
643 bfd_signed_vma bss_off
);
645 /* Take over the 'find_mapped_memory' vector from exec.c. */
646 extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR
,
652 /* Possible lvalue types. Like enum language, this should be in
653 value.h, but needs to be here for the same reason. */
661 /* In a register. Registers are relative to a frame. */
663 /* In a gdb internal variable. */
665 /* Part of a gdb internal variable (structure field). */
666 lval_internalvar_component
669 /* Control types for commands */
671 enum misc_command_type
679 enum command_control_type
690 /* Structure for saved commands lines
691 (for breakpoints, defined commands, etc). */
695 struct command_line
*next
;
697 enum command_control_type control_type
;
699 struct command_line
**body_list
;
702 extern struct command_line
*read_command_lines (char *, int);
704 extern void free_command_lines (struct command_line
**);
706 /* To continue the execution commands when running gdb asynchronously.
707 A continuation structure contains a pointer to a function to be called
708 to finish the command, once the target has stopped. Such mechanism is
709 used bt the finish and until commands, and in the remote protocol
710 when opening an extended-remote connection. */
712 struct continuation_arg
714 struct continuation_arg
*next
;
715 union continuation_data
{
724 void (*continuation_hook
) (struct continuation_arg
*);
725 struct continuation_arg
*arg_list
;
726 struct continuation
*next
;
730 extern struct continuation
*cmd_continuation
;
731 /* Used only by the step_1 function. */
732 extern struct continuation
*intermediate_continuation
;
735 extern void add_continuation (void (*)(struct continuation_arg
*),
736 struct continuation_arg
*);
737 extern void do_all_continuations (void);
738 extern void discard_all_continuations (void);
740 extern void add_intermediate_continuation (void (*)(struct continuation_arg
*),
741 struct continuation_arg
*);
742 extern void do_all_intermediate_continuations (void);
743 extern void discard_all_intermediate_continuations (void);
745 /* String containing the current directory (what getwd would return). */
747 extern char *current_directory
;
749 /* Default radixes for input and output. Only some values supported. */
750 extern unsigned input_radix
;
751 extern unsigned output_radix
;
753 /* Possibilities for prettyprint parameters to routines which print
754 things. Like enum language, this should be in value.h, but needs
755 to be here for the same reason. FIXME: If we can eliminate this
756 as an arg to LA_VAL_PRINT, then we can probably move it back to
761 Val_no_prettyprint
= 0,
763 /* Use the default setting which the user has specified. */
767 /* The ptid struct is a collection of the various "ids" necessary
768 for identifying the inferior. This consists of the process id
769 (pid), thread id (tid), and other fields necessary for uniquely
770 identifying the inferior process/thread being debugged. When
771 manipulating ptids, the constructors, accessors, and predicate
772 declared in inferior.h should be used. These are as follows:
774 ptid_build - Make a new ptid from a pid, lwp, and tid.
775 pid_to_ptid - Make a new ptid from just a pid.
776 ptid_get_pid - Fetch the pid component of a ptid.
777 ptid_get_lwp - Fetch the lwp component of a ptid.
778 ptid_get_tid - Fetch the tid component of a ptid.
779 ptid_equal - Test to see if two ptids are equal.
781 Please do NOT access the struct ptid members directly (except, of
782 course, in the implementation of the above ptid manipulation
790 /* Lightweight process id */
797 typedef struct ptid ptid_t
;
801 /* Optional host machine definition. Pure autoconf targets will not
802 need a "xm.h" file. This will be a symlink to one of the xm-*.h
803 files, built by the `configure' script. */
809 /* Optional native machine support. Non-native (and possibly pure
810 multi-arch) targets do not need a "nm.h" file. This will be a
811 symlink to one of the nm-*.h files, built by the `configure'
818 /* Optional target machine definition. Pure multi-arch configurations
819 do not need a "tm.h" file. This will be a symlink to one of the
820 tm-*.h files, built by the `configure' script. */
826 /* Assume that fopen accepts the letter "b" in the mode string.
827 It is demanded by ISO C9X, and should be supported on all
828 platforms that claim to have a standard-conforming C library. On
829 true POSIX systems it will be ignored and have no effect. There
830 may still be systems without a standard-conforming C library where
831 an ISO C9X compiler (GCC) is available. Known examples are SunOS
832 4.x and 4.3BSD. This assumption means these systems are no longer
835 # include "fopen-bin.h"
838 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
839 FIXME: Assumes 2's complement arithmetic */
841 #if !defined (UINT_MAX)
842 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
845 #if !defined (INT_MAX)
846 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
849 #if !defined (INT_MIN)
850 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
853 #if !defined (ULONG_MAX)
854 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
857 #if !defined (LONG_MAX)
858 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
861 #if !defined (ULONGEST_MAX)
862 #define ULONGEST_MAX (~(ULONGEST)0) /* 0xFFFFFFFFFFFFFFFF for 64-bits */
865 #if !defined (LONGEST_MAX) /* 0x7FFFFFFFFFFFFFFF for 64-bits */
866 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
869 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
870 arguments to a function, number in a value history, register number, etc.)
871 where the value must not be larger than can fit in an int. */
873 extern int longest_to_int (LONGEST
);
875 /* Assorted functions we can declare, now that const and volatile are
878 extern char *savestring (const char *, size_t);
880 /* xmalloc(), xrealloc() and xcalloc() have already been declared in
882 extern void xfree (void *);
884 /* Like xmalloc, but zero the memory. */
885 extern void *xzalloc (size_t);
887 /* Utility macros to allocate typed memory. Avoids errors like:
888 struct foo *foo = xmalloc (sizeof struct bar); and memset (foo,
889 sizeof (struct foo), 0). */
890 #define XZALLOC(TYPE) ((TYPE*) xzalloc (sizeof (TYPE)))
891 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
892 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE)))
894 /* Like asprintf/vasprintf but get an internal_error if the call
896 extern void xasprintf (char **ret
, const char *format
, ...) ATTR_FORMAT (printf
, 2, 3);
897 extern void xvasprintf (char **ret
, const char *format
, va_list ap
)
898 ATTR_FORMAT (printf
, 2, 0);
900 /* Like asprintf and vasprintf, but return the string, throw an error
902 extern char *xstrprintf (const char *format
, ...) ATTR_FORMAT (printf
, 1, 2);
903 extern char *xstrvprintf (const char *format
, va_list ap
)
904 ATTR_FORMAT (printf
, 1, 0);
906 /* Like snprintf, but throw an error if the output buffer is too small. */
907 extern int xsnprintf (char *str
, size_t size
, const char *format
, ...)
908 ATTR_FORMAT (printf
, 3, 4);
910 extern int parse_escape (char **);
912 /* Message to be printed before the error message, when an error occurs. */
914 extern char *error_pre_print
;
916 /* Message to be printed before the error message, when an error occurs. */
918 extern char *quit_pre_print
;
920 /* Message to be printed before the warning message, when a warning occurs. */
922 extern char *warning_pre_print
;
924 extern NORETURN
void verror (const char *fmt
, va_list ap
)
925 ATTR_NORETURN
ATTR_FORMAT (printf
, 1, 0);
927 extern NORETURN
void error (const char *fmt
, ...) ATTR_NORETURN
ATTR_FORMAT (printf
, 1, 2);
929 extern NORETURN
void error_stream (struct ui_file
*) ATTR_NORETURN
;
931 extern NORETURN
void vfatal (const char *fmt
, va_list ap
)
932 ATTR_NORETURN
ATTR_FORMAT (printf
, 1, 0);
934 extern NORETURN
void fatal (const char *fmt
, ...) ATTR_NORETURN
ATTR_FORMAT (printf
, 1, 2);
936 extern NORETURN
void internal_verror (const char *file
, int line
,
937 const char *, va_list ap
)
938 ATTR_NORETURN
ATTR_FORMAT (printf
, 3, 0);
940 extern NORETURN
void internal_error (const char *file
, int line
,
941 const char *, ...) ATTR_NORETURN
ATTR_FORMAT (printf
, 3, 4);
943 extern void internal_vwarning (const char *file
, int line
,
944 const char *, va_list ap
)
945 ATTR_FORMAT (printf
, 3, 0);
947 extern void internal_warning (const char *file
, int line
,
948 const char *, ...) ATTR_FORMAT (printf
, 3, 4);
950 extern NORETURN
void nomem (long) ATTR_NORETURN
;
952 extern void warning (const char *, ...) ATTR_FORMAT (printf
, 1, 2);
954 extern void vwarning (const char *, va_list args
) ATTR_FORMAT (printf
, 1, 0);
956 /* List of known OS ABIs. If you change this, make sure to update the
960 GDB_OSABI_UNINITIALIZED
= -1, /* For struct gdbarch_info. */
962 GDB_OSABI_UNKNOWN
= 0, /* keep this zero */
969 GDB_OSABI_FREEBSD_AOUT
,
970 GDB_OSABI_FREEBSD_ELF
,
971 GDB_OSABI_NETBSD_AOUT
,
972 GDB_OSABI_NETBSD_ELF
,
973 GDB_OSABI_OPENBSD_ELF
,
986 GDB_OSABI_INVALID
/* keep this last */
989 /* Global functions from other, non-gdb GNU thingies.
990 Libiberty thingies are no longer declared here. We include libiberty.h
993 /* From other system libraries */
1003 #define min(a, b) ((a) < (b) ? (a) : (b))
1006 #define max(a, b) ((a) > (b) ? (a) : (b))
1011 extern double atof (const char *); /* X3.159-1989 4.10.1.1 */
1014 /* Various possibilities for alloca. */
1017 #define alloca __builtin_alloca
1018 #else /* Not GNU C */
1019 #ifdef HAVE_ALLOCA_H
1026 /* We need to be careful not to declare this in a way which conflicts with
1027 bison. Bison never declares it as char *, but under various circumstances
1028 (like __hpux) we need to use void *. */
1029 extern void *alloca ();
1030 #endif /* Not _AIX */
1031 #endif /* Not HAVE_ALLOCA_H */
1032 #endif /* Not GNU C */
1033 #endif /* alloca not defined */
1035 /* Dynamic target-system-dependent parameters for GDB. */
1036 #include "gdbarch.h"
1038 /* Maximum size of a register. Something small, but large enough for
1039 all known ISAs. If it turns out to be too small, make it bigger. */
1041 enum { MAX_REGISTER_SIZE
= 16 };
1043 /* Static target-system-dependent parameters for GDB. */
1045 /* Number of bits in a char or unsigned char for the target machine.
1046 Just like CHAR_BIT in <limits.h> but describes the target machine. */
1047 #if !defined (TARGET_CHAR_BIT)
1048 #define TARGET_CHAR_BIT 8
1051 /* If we picked up a copy of CHAR_BIT from a configuration file
1052 (which may get it by including <limits.h>) then use it to set
1053 the number of bits in a host char. If not, use the same size
1056 #if defined (CHAR_BIT)
1057 #define HOST_CHAR_BIT CHAR_BIT
1059 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1062 /* The bit byte-order has to do just with numbering of bits in
1063 debugging symbols and such. Conceptually, it's quite separate
1064 from byte/word byte order. */
1066 #if !defined (BITS_BIG_ENDIAN)
1067 #define BITS_BIG_ENDIAN (gdbarch_byte_order (current_gdbarch) == BFD_ENDIAN_BIG)
1072 extern LONGEST
extract_signed_integer (const gdb_byte
*, int);
1074 extern ULONGEST
extract_unsigned_integer (const gdb_byte
*, int);
1076 extern int extract_long_unsigned_integer (const gdb_byte
*, int, LONGEST
*);
1078 extern CORE_ADDR
extract_typed_address (const gdb_byte
*buf
,
1081 extern void store_signed_integer (gdb_byte
*, int, LONGEST
);
1083 extern void store_unsigned_integer (gdb_byte
*, int, ULONGEST
);
1085 extern void store_typed_address (gdb_byte
*buf
, struct type
*type
,
1091 extern int watchdog
;
1093 /* Hooks for alternate command interfaces. */
1095 /* The name of the interpreter if specified on the command line. */
1096 extern char *interpreter_p
;
1098 /* If a given interpreter matches INTERPRETER_P then it should update
1099 deprecated_command_loop_hook and deprecated_init_ui_hook with the
1100 per-interpreter implementation. */
1101 /* FIXME: deprecated_command_loop_hook and deprecated_init_ui_hook
1102 should be moved here. */
1104 struct target_waitstatus
;
1105 struct cmd_list_element
;
1107 extern void (*deprecated_pre_add_symbol_hook
) (const char *);
1108 extern void (*deprecated_post_add_symbol_hook
) (void);
1109 extern void (*selected_frame_level_changed_hook
) (int);
1110 extern int (*deprecated_ui_loop_hook
) (int signo
);
1111 extern void (*deprecated_init_ui_hook
) (char *argv0
);
1112 extern void (*deprecated_command_loop_hook
) (void);
1113 extern void (*deprecated_show_load_progress
) (const char *section
,
1114 unsigned long section_sent
,
1115 unsigned long section_size
,
1116 unsigned long total_sent
,
1117 unsigned long total_size
);
1118 extern void (*deprecated_print_frame_info_listing_hook
) (struct symtab
* s
,
1119 int line
, int stopline
,
1121 extern int (*deprecated_query_hook
) (const char *, va_list)
1122 ATTRIBUTE_FPTR_PRINTF(1,0);
1123 extern void (*deprecated_warning_hook
) (const char *, va_list)
1124 ATTRIBUTE_FPTR_PRINTF(1,0);
1125 extern void (*deprecated_flush_hook
) (struct ui_file
* stream
);
1126 extern void (*deprecated_create_breakpoint_hook
) (struct breakpoint
* b
);
1127 extern void (*deprecated_delete_breakpoint_hook
) (struct breakpoint
* bpt
);
1128 extern void (*deprecated_modify_breakpoint_hook
) (struct breakpoint
* bpt
);
1129 extern void (*deprecated_interactive_hook
) (void);
1130 extern void (*deprecated_readline_begin_hook
) (char *, ...)
1131 ATTRIBUTE_FPTR_PRINTF_1
;
1132 extern char *(*deprecated_readline_hook
) (char *);
1133 extern void (*deprecated_readline_end_hook
) (void);
1134 extern void (*deprecated_register_changed_hook
) (int regno
);
1135 extern void (*deprecated_memory_changed_hook
) (CORE_ADDR addr
, int len
);
1136 extern void (*deprecated_context_hook
) (int);
1137 extern ptid_t (*deprecated_target_wait_hook
) (ptid_t ptid
,
1138 struct target_waitstatus
* status
);
1140 extern void (*deprecated_attach_hook
) (void);
1141 extern void (*deprecated_detach_hook
) (void);
1142 extern void (*deprecated_call_command_hook
) (struct cmd_list_element
* c
,
1143 char *cmd
, int from_tty
);
1145 extern void (*deprecated_set_hook
) (struct cmd_list_element
* c
);
1147 extern void (*deprecated_error_hook
) (void);
1149 extern void (*deprecated_error_begin_hook
) (void);
1151 extern int (*deprecated_ui_load_progress_hook
) (const char *section
,
1155 /* Inhibit window interface if non-zero. */
1157 extern int use_windows
;
1159 /* Symbolic definitions of filename-related things. */
1160 /* FIXME, this doesn't work very well if host and executable
1161 filesystems conventions are different. */
1165 # define GLOBAL_CURDIR
1166 # define DIRNAME_SEPARATOR ';'
1169 #if !defined (__CYGWIN__) && defined (_WIN32)
1170 # define DIRNAME_SEPARATOR ';'
1173 #ifndef DIRNAME_SEPARATOR
1174 #define DIRNAME_SEPARATOR ':'
1177 #ifndef SLASH_STRING
1178 #define SLASH_STRING "/"
1181 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
1182 The name ``TIDGET'' is a historical accident. Many uses of TIDGET
1183 in the code actually refer to a lightweight process id, i.e,
1184 something that can be considered a process id in its own right for
1185 certain purposes. */
1188 #define PIDGET(PTID) (ptid_get_pid (PTID))
1189 #define TIDGET(PTID) (ptid_get_lwp (PTID))
1190 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
1193 /* Define well known filenos if the system does not define them. */
1194 #ifndef STDIN_FILENO
1195 #define STDIN_FILENO 0
1197 #ifndef STDOUT_FILENO
1198 #define STDOUT_FILENO 1
1200 #ifndef STDERR_FILENO
1201 #define STDERR_FILENO 2
1204 /* If this definition isn't overridden by the header files, assume
1205 that isatty and fileno exist on this system. */
1207 #define ISATTY(FP) (isatty (fileno (FP)))
1210 /* Ensure that V is aligned to an N byte boundary (B's assumed to be a
1211 power of 2). Round up/down when necessary. Examples of correct
1214 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
1215 write_memory (addr, value, len);
1220 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
1221 write_memory (sp, value, len);
1223 Note that uses such as:
1225 write_memory (addr, value, len);
1226 addr += align_up (len, 8);
1230 sp -= align_up (len, 8);
1231 write_memory (sp, value, len);
1233 are typically not correct as they don't ensure that the address (SP
1234 or ADDR) is correctly aligned (relying on previous alignment to
1235 keep things right). This is also why the methods are called
1236 "align_..." instead of "round_..." as the latter reads better with
1237 this incorrect coding style. */
1239 extern ULONGEST
align_up (ULONGEST v
, int n
);
1240 extern ULONGEST
align_down (ULONGEST v
, int n
);
1242 /* Allocation and deallocation functions for the libiberty hash table
1243 which use obstacks. */
1244 void *hashtab_obstack_allocate (void *data
, size_t size
, size_t count
);
1245 void dummy_obstack_deallocate (void *object
, void *data
);
1247 #endif /* #ifndef DEFS_H */