1 /* *INDENT-OFF* */ /* ATTR_FORMAT confuses indent, avoid running it for now */
2 /* Basic, host-specific, and target-specific definitions for GDB.
3 Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
4 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
5 Free Software Foundation, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
25 #include "config.h" /* Generated by configure. */
27 #include <sys/types.h>
29 #include <errno.h> /* System call error return status. */
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 /* The largest CORE_ADDR value. */
88 #define CORE_ADDR_MAX (~ (CORE_ADDR) 0)
90 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
96 #define LONGEST BFD_HOST_64_BIT
97 #define ULONGEST BFD_HOST_U_64_BIT
101 #ifdef CC_HAS_LONG_LONG
102 #define LONGEST long long
103 #define ULONGEST unsigned long long
105 #ifdef BFD_HOST_64_BIT
106 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
107 (e.g. i386-windows) so try it. */
108 #define LONGEST BFD_HOST_64_BIT
109 #define ULONGEST BFD_HOST_U_64_BIT
112 #define ULONGEST unsigned long
116 #endif /* No BFD64 */
118 #endif /* ! LONGEST */
121 #define min(a, b) ((a) < (b) ? (a) : (b))
124 #define max(a, b) ((a) > (b) ? (a) : (b))
127 /* Macros to do string compares.
129 NOTE: cagney/2000-03-14:
131 While old code can continue to refer to these macros, new code is
132 probably better off using strcmp() directly vis: ``strcmp() == 0''
133 and ``strcmp() != 0''.
135 This is because modern compilers can directly inline strcmp()
136 making the original justification for these macros - avoid function
137 call overhead by pre-testing the first characters
138 (``*X==*Y?...:0'') - redundant.
140 ``Even if [...] testing the first character does have a modest
141 performance improvement, I'd rather that whenever a performance
142 issue is found that we spend the effort on algorithmic
143 optimizations than micro-optimizing.'' J.T. */
145 /* NOTE: cagney/2003-11-23: All instances of STREQ[N] covered by
146 testing GDB on a stabs system have been replaced by equivalent
147 str[n]cmp calls. To avoid the possability of introducing bugs when
148 making untested changes, the remaining references were deprecated
149 rather than replaced. */
151 /* DISCLAIMER: cagney/2003-11-23: Simplified definition of these
152 macros so that they just map directly onto strcmp equivalent. I'm
153 not responsible for any breakage due to code that relied on the old
154 underlying implementation. */
156 #define DEPRECATED_STREQN(a,b,c) (strncmp ((a), (b), (c)) == 0)
158 /* Check if a character is one of the commonly used C++ marker characters. */
159 extern int is_cplus_marker (int);
161 /* enable xdb commands if set */
162 extern int xdb_commands;
164 /* enable dbx commands if set */
165 extern int dbx_commands;
167 /* System root path, used to find libraries etc. */
168 extern char *gdb_sysroot;
170 /* Search path for separate debug files. */
171 extern char *debug_file_directory;
173 extern int quit_flag;
174 extern int immediate_quit;
175 extern int sevenbit_strings;
177 extern void quit (void);
179 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
180 benefits of having a ``QUIT'' macro rather than a function are
181 marginal. If the overhead of a QUIT function call is proving
182 significant then its calling frequency should probably be reduced
183 [kingdon]. A profile analyzing the current situtation is
187 /* do twice to force compiler warning */
188 #define QUIT_FIXME "FIXME"
189 #define QUIT_FIXME "ignoring redefinition of QUIT"
192 if (quit_flag) quit (); \
193 if (deprecated_interactive_hook) deprecated_interactive_hook (); \
197 /* Languages represented in the symbol table and elsewhere.
198 This should probably be in language.h, but since enum's can't
199 be forward declared to satisfy opaque references before their
200 actual definition, needs to be here. */
204 language_unknown, /* Language not known */
205 language_auto, /* Placeholder for automatic setting */
207 language_cplus, /* C++ */
208 language_objc, /* Objective-C */
209 language_java, /* Java */
210 language_fortran, /* Fortran */
211 language_m2, /* Modula-2 */
212 language_asm, /* Assembly language */
213 language_pascal, /* Pascal */
214 language_ada, /* Ada */
215 language_scm, /* Guile Scheme */
216 language_minimal, /* All other languages, minimal support only */
224 unspecified_precision
227 /* A generic, not quite boolean, enumeration. */
235 /* Potential ways that a function can return a value of a given type. */
236 enum return_value_convention
238 /* Where the return value has been squeezed into one or more
240 RETURN_VALUE_REGISTER_CONVENTION,
241 /* Commonly known as the "struct return convention". The caller
242 passes an additional hidden first parameter to the caller. That
243 parameter contains the address at which the value being returned
244 should be stored. While typically, and historically, used for
245 large structs, this is convention is applied to values of many
247 RETURN_VALUE_STRUCT_CONVENTION,
248 /* Like the "struct return convention" above, but where the ABI
249 guarantees that the called function stores the address at which
250 the value being returned is stored in a well-defined location,
251 such as a register or memory slot in the stack frame. Don't use
252 this if the ABI doesn't explicitly guarantees this. */
253 RETURN_VALUE_ABI_RETURNS_ADDRESS,
254 /* Like the "struct return convention" above, but where the ABI
255 guarantees that the address at which the value being returned is
256 stored will be available in a well-defined location, such as a
257 register or memory slot in the stack frame. Don't use this if
258 the ABI doesn't explicitly guarantees this. */
259 RETURN_VALUE_ABI_PRESERVES_ADDRESS,
262 /* the cleanup list records things that have to be undone
263 if an error happens (descriptors to be closed, memory to be freed, etc.)
264 Each link in the chain records a function to call and an
267 Use make_cleanup to add an element to the cleanup chain.
268 Use do_cleanups to do all cleanup actions back to a given
269 point in the chain. Use discard_cleanups to remove cleanups
270 from the chain back to a given point, not doing them. */
274 struct cleanup *next;
275 void (*function) (void *);
280 /* The ability to declare that a function never returns is useful, but
281 not really required to compile GDB successfully, so the NORETURN and
282 ATTR_NORETURN macros normally expand into nothing. */
284 /* If compiling with older versions of GCC, a function may be declared
285 "volatile" to indicate that it does not return. */
288 #if defined(__GNUC__) \
289 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
290 #define NORETURN volatile
292 #define NORETURN /* nothing */
296 /* GCC 2.5 and later versions define a function attribute "noreturn",
297 which is the preferred way to declare that a function never returns.
298 However GCC 2.7 appears to be the first version in which this fully
299 works everywhere we use it. */
301 #ifndef ATTR_NORETURN
302 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
303 #define ATTR_NORETURN __attribute__ ((noreturn))
305 #define ATTR_NORETURN /* nothing */
310 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
311 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
313 #define ATTR_FORMAT(type, x, y) /* nothing */
317 /* Be conservative and use enum bitfields only with GCC.
318 This is copied from gcc 3.3.1, system.h. */
320 #if defined(__GNUC__) && (__GNUC__ >= 2)
321 #define ENUM_BITFIELD(TYPE) enum TYPE
323 #define ENUM_BITFIELD(TYPE) unsigned int
326 /* Needed for various prototypes */
334 extern void initialize_utils (void);
336 extern void notice_quit (void);
338 extern int strcmp_iw (const char *, const char *);
340 extern int strcmp_iw_ordered (const char *, const char *);
342 extern int streq (const char *, const char *);
344 extern int subset_compare (char *, char *);
346 extern char *safe_strerror (int);
348 #define ALL_CLEANUPS ((struct cleanup *)0)
350 extern void do_cleanups (struct cleanup *);
351 extern void do_final_cleanups (struct cleanup *);
352 extern void do_exec_cleanups (struct cleanup *);
353 extern void do_exec_error_cleanups (struct cleanup *);
355 extern void discard_cleanups (struct cleanup *);
356 extern void discard_final_cleanups (struct cleanup *);
357 extern void discard_exec_error_cleanups (struct cleanup *);
358 extern void discard_my_cleanups (struct cleanup **, struct cleanup *);
360 /* NOTE: cagney/2000-03-04: This typedef is strictly for the
361 make_cleanup function declarations below. Do not use this typedef
362 as a cast when passing functions into the make_cleanup() code.
363 Instead either use a bounce function or add a wrapper function.
364 Calling a f(char*) function with f(void*) is non-portable. */
365 typedef void (make_cleanup_ftype) (void *);
367 extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *);
369 extern struct cleanup *make_cleanup_freeargv (char **);
372 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
374 struct section_addr_info;
375 extern struct cleanup *(make_cleanup_free_section_addr_info
376 (struct section_addr_info *));
378 extern struct cleanup *make_cleanup_close (int fd);
380 extern struct cleanup *make_cleanup_bfd_close (bfd *abfd);
382 extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
384 extern struct cleanup *make_my_cleanup (struct cleanup **,
385 make_cleanup_ftype *, void *);
387 extern struct cleanup *make_exec_cleanup (make_cleanup_ftype *, void *);
388 extern struct cleanup *make_exec_error_cleanup (make_cleanup_ftype *, void *);
390 extern struct cleanup *save_cleanups (void);
391 extern struct cleanup *save_final_cleanups (void);
392 extern struct cleanup *save_my_cleanups (struct cleanup **);
394 extern void restore_cleanups (struct cleanup *);
395 extern void restore_final_cleanups (struct cleanup *);
396 extern void restore_my_cleanups (struct cleanup **, struct cleanup *);
398 extern void free_current_contents (void *);
400 extern void null_cleanup (void *);
402 extern int myread (int, char *, int);
404 extern int query (const char *, ...) ATTR_FORMAT (printf, 1, 2);
405 extern int nquery (const char *, ...) ATTR_FORMAT (printf, 1, 2);
406 extern int yquery (const char *, ...) ATTR_FORMAT (printf, 1, 2);
408 extern void init_page_info (void);
410 extern char *gdb_realpath (const char *);
411 extern char *xfullpath (const char *);
413 extern unsigned long gnu_debuglink_crc32 (unsigned long crc,
414 unsigned char *buf, size_t len);
416 ULONGEST strtoulst (const char *num, const char **trailer, int base);
418 char *ldirname (const char *filename);
420 /* From demangle.c */
422 extern void set_demangling_style (char *);
425 /* Annotation stuff. */
427 extern int annotation_level; /* in stack.c */
429 extern void begin_line (void);
431 extern void wrap_here (char *);
433 extern void reinitialize_more_filter (void);
436 extern struct ui_file *gdb_stdout;
438 extern struct ui_file *gdb_stdin;
439 /* Serious error notifications */
440 extern struct ui_file *gdb_stderr;
441 /* Log/debug/trace messages that should bypass normal stdout/stderr
442 filtering. For moment, always call this stream using
443 *_unfiltered. In the very near future that restriction shall be
444 removed - either call shall be unfiltered. (cagney 1999-06-13). */
445 extern struct ui_file *gdb_stdlog;
446 /* Target output that should bypass normal stdout/stderr filtering.
447 For moment, always call this stream using *_unfiltered. In the
448 very near future that restriction shall be removed - either call
449 shall be unfiltered. (cagney 1999-07-02). */
450 extern struct ui_file *gdb_stdtarg;
451 extern struct ui_file *gdb_stdtargerr;
452 extern struct ui_file *gdb_stdtargin;
456 /* More generic printf like operations. Filtered versions may return
457 non-locally on error. */
459 extern void fputs_filtered (const char *, struct ui_file *);
461 extern void fputs_unfiltered (const char *, struct ui_file *);
463 extern int fputc_filtered (int c, struct ui_file *);
465 extern int fputc_unfiltered (int c, struct ui_file *);
467 extern int putchar_filtered (int c);
469 extern int putchar_unfiltered (int c);
471 extern void puts_filtered (const char *);
473 extern void puts_unfiltered (const char *);
475 extern void puts_filtered_tabular (char *string, int width, int right);
477 extern void puts_debug (char *prefix, char *string, char *suffix);
479 extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
481 extern void vfprintf_filtered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
483 extern void fprintf_filtered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
485 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 3, 4);
487 extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
489 extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf, 2, 3);
491 extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
493 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
495 extern void fprintf_unfiltered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
497 extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
499 extern void print_spaces (int, struct ui_file *);
501 extern void print_spaces_filtered (int, struct ui_file *);
503 extern char *n_spaces (int);
505 extern void fputstr_filtered (const char *str, int quotr, struct ui_file * stream);
507 extern void fputstr_unfiltered (const char *str, int quotr, struct ui_file * stream);
509 extern void fputstrn_filtered (const char *str, int n, int quotr, struct ui_file * stream);
511 extern void fputstrn_unfiltered (const char *str, int n, int quotr, struct ui_file * stream);
513 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
514 extern void gdb_print_host_address (const void *addr, struct ui_file *stream);
516 /* Convert a CORE_ADDR into a HEX string. paddr() is like %08lx.
517 paddr_nz() is like %lx. paddr_u() is like %lu. paddr_width() is
519 extern int strlen_paddr (void);
520 extern char *paddr (CORE_ADDR addr);
521 extern char *paddr_nz (CORE_ADDR addr);
522 extern char *paddr_u (CORE_ADDR addr);
523 extern char *paddr_d (LONGEST addr);
525 /* Like 0x%lx, replaces deprecated_print_address_numeric. */
526 extern const char *paddress (CORE_ADDR addr);
528 extern char *phex (ULONGEST l, int sizeof_l);
529 extern char *phex_nz (ULONGEST l, int sizeof_l);
530 extern char *int_string (LONGEST, int, int, int, int);
532 /* Like paddr() only print/scan raw CORE_ADDR. The output from
533 core_addr_to_string() can be passed direct to
534 string_to_core_addr(). */
535 extern const char *core_addr_to_string (const CORE_ADDR addr);
536 extern const char *core_addr_to_string_nz (const CORE_ADDR addr);
537 extern CORE_ADDR string_to_core_addr (const char *my_string);
539 /* Return a string that contains a number formatted as a hex
541 extern char *hex_string (LONGEST);
542 extern char *hex_string_custom (LONGEST, int);
544 extern void fprintf_symbol_filtered (struct ui_file *, char *,
547 extern NORETURN void perror_with_name (const char *) ATTR_NORETURN;
549 extern void print_sys_errmsg (const char *, int);
551 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
552 "const char *" in unistd.h, so we can't declare the argument
555 extern char *re_comp (const char *);
559 extern void symbol_file_command (char *, int);
561 /* Remote targets may wish to use this as their load function. */
562 extern void generic_load (char *name, int from_tty);
564 /* Report on STREAM the performance of memory transfer operation,
566 DATA_COUNT is the number of bytes transferred.
567 WRITE_COUNT is the number of separate write operations, or 0,
568 if that information is not available.
569 START_TIME is the time at which an operation was started.
570 END_TIME is the time at which an operation ended. */
572 extern void print_transfer_performance (struct ui_file *stream,
573 unsigned long data_count,
574 unsigned long write_count,
575 const struct timeval *start_time,
576 const struct timeval *end_time);
580 typedef void initialize_file_ftype (void);
582 extern char *skip_quoted (char *);
584 extern char *gdb_readline (char *);
586 extern char *gdb_readline_wrapper (char *);
588 extern char *command_line_input (char *, int, char *);
590 extern void print_prompt (void);
592 extern int input_from_terminal_p (void);
594 extern int info_verbose;
596 /* From printcmd.c */
598 extern void set_next_address (CORE_ADDR);
600 extern void print_address_symbolic (CORE_ADDR, struct ui_file *, int,
603 extern int build_address_symbolic (CORE_ADDR addr,
611 extern void deprecated_print_address_numeric (CORE_ADDR, int, struct ui_file *);
613 extern void print_address (CORE_ADDR, struct ui_file *);
617 #define OPF_TRY_CWD_FIRST 0x01
618 #define OPF_SEARCH_IN_PATH 0x02
620 extern int openp (const char *, int, const char *, int, int, char **);
622 extern int source_full_path_of (char *, char **);
624 extern void mod_path (char *, char **);
626 extern void add_path (char *, char **, int);
628 extern void directory_command (char *, int);
630 extern void directory_switch (char *, int);
632 extern char *source_path;
634 extern void init_source_path (void);
636 extern void init_last_source_visited (void);
640 extern void exec_set_section_offsets (bfd_signed_vma text_off,
641 bfd_signed_vma data_off,
642 bfd_signed_vma bss_off);
644 /* Take over the 'find_mapped_memory' vector from exec.c. */
645 extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR,
651 /* Possible lvalue types. Like enum language, this should be in
652 value.h, but needs to be here for the same reason. */
660 /* In a register. Registers are relative to a frame. */
662 /* In a gdb internal variable. */
664 /* Part of a gdb internal variable (structure field). */
665 lval_internalvar_component
668 /* Control types for commands */
670 enum misc_command_type
678 enum command_control_type
689 /* Structure for saved commands lines
690 (for breakpoints, defined commands, etc). */
694 struct command_line *next;
696 enum command_control_type control_type;
698 struct command_line **body_list;
701 extern struct command_line *read_command_lines (char *, int);
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. */
711 struct continuation_arg
713 struct continuation_arg *next;
714 union continuation_data {
723 void (*continuation_hook) (struct continuation_arg *);
724 struct continuation_arg *arg_list;
725 struct continuation *next;
729 extern struct continuation *cmd_continuation;
730 /* Used only by the step_1 function. */
731 extern struct continuation *intermediate_continuation;
734 extern void add_continuation (void (*)(struct continuation_arg *),
735 struct continuation_arg *);
736 extern void do_all_continuations (void);
737 extern void discard_all_continuations (void);
739 extern void add_intermediate_continuation (void (*)(struct continuation_arg *),
740 struct continuation_arg *);
741 extern void do_all_intermediate_continuations (void);
742 extern void discard_all_intermediate_continuations (void);
744 /* String containing the current directory (what getwd would return). */
746 extern char *current_directory;
748 /* Default radixes for input and output. Only some values supported. */
749 extern unsigned input_radix;
750 extern unsigned output_radix;
752 /* Possibilities for prettyprint parameters to routines which print
753 things. Like enum language, this should be in value.h, but needs
754 to be here for the same reason. FIXME: If we can eliminate this
755 as an arg to LA_VAL_PRINT, then we can probably move it back to
760 Val_no_prettyprint = 0,
762 /* Use the default setting which the user has specified. */
766 /* The ptid struct is a collection of the various "ids" necessary
767 for identifying the inferior. This consists of the process id
768 (pid), thread id (tid), and other fields necessary for uniquely
769 identifying the inferior process/thread being debugged. When
770 manipulating ptids, the constructors, accessors, and predicate
771 declared in inferior.h should be used. These are as follows:
773 ptid_build - Make a new ptid from a pid, lwp, and tid.
774 pid_to_ptid - Make a new ptid from just a pid.
775 ptid_get_pid - Fetch the pid component of a ptid.
776 ptid_get_lwp - Fetch the lwp component of a ptid.
777 ptid_get_tid - Fetch the tid component of a ptid.
778 ptid_equal - Test to see if two ptids are equal.
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, ...) ATTR_FORMAT (printf, 2, 3);
880 extern void xvasprintf (char **ret, const char *format, va_list ap)
881 ATTR_FORMAT (printf, 2, 0);
883 /* Like asprintf and vasprintf, but return the string, throw an error
885 extern char *xstrprintf (const char *format, ...) ATTR_FORMAT (printf, 1, 2);
886 extern char *xstrvprintf (const char *format, va_list ap)
887 ATTR_FORMAT (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 ATTR_FORMAT (printf, 3, 4);
893 extern int parse_escape (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 NORETURN void verror (const char *fmt, va_list ap)
908 ATTR_NORETURN ATTR_FORMAT (printf, 1, 0);
910 extern NORETURN void error (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
912 extern NORETURN void error_stream (struct ui_file *) ATTR_NORETURN;
914 extern NORETURN void vfatal (const char *fmt, va_list ap)
915 ATTR_NORETURN ATTR_FORMAT (printf, 1, 0);
917 extern NORETURN void fatal (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
919 extern NORETURN void internal_verror (const char *file, int line,
920 const char *, va_list ap)
921 ATTR_NORETURN ATTR_FORMAT (printf, 3, 0);
923 extern NORETURN void internal_error (const char *file, int line,
924 const char *, ...) ATTR_NORETURN ATTR_FORMAT (printf, 3, 4);
926 extern void internal_vwarning (const char *file, int line,
927 const char *, va_list ap)
928 ATTR_FORMAT (printf, 3, 0);
930 extern void internal_warning (const char *file, int line,
931 const char *, ...) ATTR_FORMAT (printf, 3, 4);
933 extern NORETURN void nomem (long) ATTR_NORETURN;
935 extern void warning (const char *, ...) ATTR_FORMAT (printf, 1, 2);
937 extern void vwarning (const char *, va_list args) ATTR_FORMAT (printf, 1, 0);
939 /* List of known OS ABIs. If you change this, make sure to update the
943 GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info. */
945 GDB_OSABI_UNKNOWN = 0, /* keep this zero */
952 GDB_OSABI_FREEBSD_AOUT,
953 GDB_OSABI_FREEBSD_ELF,
954 GDB_OSABI_NETBSD_AOUT,
955 GDB_OSABI_NETBSD_ELF,
956 GDB_OSABI_OPENBSD_ELF,
969 GDB_OSABI_INVALID /* keep this last */
972 /* Global functions from other, non-gdb GNU thingies.
973 Libiberty thingies are no longer declared here. We include libiberty.h
976 /* From other system libraries */
986 #define min(a, b) ((a) < (b) ? (a) : (b))
989 #define max(a, b) ((a) > (b) ? (a) : (b))
994 extern double atof (const char *); /* X3.159-1989 4.10.1.1 */
997 /* Various possibilities for alloca. */
1000 #define alloca __builtin_alloca
1001 #else /* Not GNU C */
1002 #ifdef HAVE_ALLOCA_H
1009 /* We need to be careful not to declare this in a way which conflicts with
1010 bison. Bison never declares it as char *, but under various circumstances
1011 (like __hpux) we need to use void *. */
1012 extern void *alloca ();
1013 #endif /* Not _AIX */
1014 #endif /* Not HAVE_ALLOCA_H */
1015 #endif /* Not GNU C */
1016 #endif /* alloca not defined */
1018 /* Dynamic target-system-dependent parameters for GDB. */
1019 #include "gdbarch.h"
1021 /* Maximum size of a register. Something small, but large enough for
1022 all known ISAs. If it turns out to be too small, make it bigger. */
1024 enum { MAX_REGISTER_SIZE = 16 };
1026 /* Static target-system-dependent parameters for GDB. */
1028 /* Number of bits in a char or unsigned char for the target machine.
1029 Just like CHAR_BIT in <limits.h> but describes the target machine. */
1030 #if !defined (TARGET_CHAR_BIT)
1031 #define TARGET_CHAR_BIT 8
1034 /* If we picked up a copy of CHAR_BIT from a configuration file
1035 (which may get it by including <limits.h>) then use it to set
1036 the number of bits in a host char. If not, use the same size
1039 #if defined (CHAR_BIT)
1040 #define HOST_CHAR_BIT CHAR_BIT
1042 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1045 /* The bit byte-order has to do just with numbering of bits in
1046 debugging symbols and such. Conceptually, it's quite separate
1047 from byte/word byte order. */
1049 #if !defined (BITS_BIG_ENDIAN)
1050 #define BITS_BIG_ENDIAN (gdbarch_byte_order (current_gdbarch) == BFD_ENDIAN_BIG)
1055 extern LONGEST extract_signed_integer (const gdb_byte *, int);
1057 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int);
1059 extern int extract_long_unsigned_integer (const gdb_byte *, int, LONGEST *);
1061 extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
1064 extern void store_signed_integer (gdb_byte *, int, LONGEST);
1066 extern void store_unsigned_integer (gdb_byte *, int, 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_create_breakpoint_hook) (struct breakpoint * b);
1110 extern void (*deprecated_delete_breakpoint_hook) (struct breakpoint * bpt);
1111 extern void (*deprecated_modify_breakpoint_hook) (struct breakpoint * bpt);
1112 extern void (*deprecated_interactive_hook) (void);
1113 extern void (*deprecated_readline_begin_hook) (char *, ...)
1114 ATTRIBUTE_FPTR_PRINTF_1;
1115 extern char *(*deprecated_readline_hook) (char *);
1116 extern void (*deprecated_readline_end_hook) (void);
1117 extern void (*deprecated_register_changed_hook) (int regno);
1118 extern void (*deprecated_memory_changed_hook) (CORE_ADDR addr, int len);
1119 extern void (*deprecated_context_hook) (int);
1120 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
1121 struct target_waitstatus * status);
1123 extern void (*deprecated_attach_hook) (void);
1124 extern void (*deprecated_detach_hook) (void);
1125 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
1126 char *cmd, int from_tty);
1128 extern void (*deprecated_set_hook) (struct cmd_list_element * c);
1130 extern void (*deprecated_error_hook) (void);
1132 extern void (*deprecated_error_begin_hook) (void);
1134 extern int (*deprecated_ui_load_progress_hook) (const char *section,
1138 /* Inhibit window interface if non-zero. */
1140 extern int use_windows;
1142 /* Symbolic definitions of filename-related things. */
1143 /* FIXME, this doesn't work very well if host and executable
1144 filesystems conventions are different. */
1148 # define GLOBAL_CURDIR
1149 # define DIRNAME_SEPARATOR ';'
1152 #if !defined (__CYGWIN__) && defined (_WIN32)
1153 # define DIRNAME_SEPARATOR ';'
1156 #ifndef DIRNAME_SEPARATOR
1157 #define DIRNAME_SEPARATOR ':'
1160 #ifndef SLASH_STRING
1161 #define SLASH_STRING "/"
1164 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
1165 The name ``TIDGET'' is a historical accident. Many uses of TIDGET
1166 in the code actually refer to a lightweight process id, i.e,
1167 something that can be considered a process id in its own right for
1168 certain purposes. */
1171 #define PIDGET(PTID) (ptid_get_pid (PTID))
1172 #define TIDGET(PTID) (ptid_get_lwp (PTID))
1173 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
1176 /* Define well known filenos if the system does not define them. */
1177 #ifndef STDIN_FILENO
1178 #define STDIN_FILENO 0
1180 #ifndef STDOUT_FILENO
1181 #define STDOUT_FILENO 1
1183 #ifndef STDERR_FILENO
1184 #define STDERR_FILENO 2
1187 /* If this definition isn't overridden by the header files, assume
1188 that isatty and fileno exist on this system. */
1190 #define ISATTY(FP) (isatty (fileno (FP)))
1193 /* Ensure that V is aligned to an N byte boundary (B's assumed to be a
1194 power of 2). Round up/down when necessary. Examples of correct
1197 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
1198 write_memory (addr, value, len);
1203 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
1204 write_memory (sp, value, len);
1206 Note that uses such as:
1208 write_memory (addr, value, len);
1209 addr += align_up (len, 8);
1213 sp -= align_up (len, 8);
1214 write_memory (sp, value, len);
1216 are typically not correct as they don't ensure that the address (SP
1217 or ADDR) is correctly aligned (relying on previous alignment to
1218 keep things right). This is also why the methods are called
1219 "align_..." instead of "round_..." as the latter reads better with
1220 this incorrect coding style. */
1222 extern ULONGEST align_up (ULONGEST v, int n);
1223 extern ULONGEST align_down (ULONGEST v, int n);
1225 /* Allocation and deallocation functions for the libiberty hash table
1226 which use obstacks. */
1227 void *hashtab_obstack_allocate (void *data, size_t size, size_t count);
1228 void dummy_obstack_deallocate (void *object, void *data);
1230 #endif /* #ifndef DEFS_H */