1 /* *INDENT-OFF* */ /* ATTR_FORMAT confuses indent, avoid running it for now */
2 /* Basic, host-specific, and target-specific definitions for GDB.
3 Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
4 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
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 2 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, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
27 #include "config.h" /* Generated by configure. */
30 #include <errno.h> /* System call error return status. */
36 #include <sys/types.h> /* For size_t. */
43 /* First include ansidecl.h so we can use the various macro definitions
44 here and in all subsequent file inclusions. */
48 #include "gdb_locale.h"
50 /* For ``enum target_signal''. */
51 #include "gdb/signals.h"
53 /* Just in case they're not defined in stdio.h. */
62 #include <stdarg.h> /* For va_list. */
64 #include "libiberty.h"
66 /* For BFD64 and bfd_vma. */
69 /* An address in the program being debugged. Host byte order. Rather
70 than duplicate all the logic in BFD which figures out what type
71 this is (long, long long, etc.) and whether it needs to be 64
72 bits (the host/target interactions are subtle), we just use
75 typedef bfd_vma CORE_ADDR;
77 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
83 #define LONGEST BFD_HOST_64_BIT
84 #define ULONGEST BFD_HOST_U_64_BIT
88 #ifdef CC_HAS_LONG_LONG
89 #define LONGEST long long
90 #define ULONGEST unsigned long long
92 #ifdef BFD_HOST_64_BIT
93 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
94 (e.g. i386-windows) so try it. */
95 #define LONGEST BFD_HOST_64_BIT
96 #define ULONGEST BFD_HOST_U_64_BIT
99 #define ULONGEST unsigned long
103 #endif /* No BFD64 */
105 #endif /* ! LONGEST */
108 #define min(a, b) ((a) < (b) ? (a) : (b))
111 #define max(a, b) ((a) > (b) ? (a) : (b))
114 /* Macros to do string compares.
116 NOTE: cagney/2000-03-14:
118 While old code can continue to refer to these macros, new code is
119 probably better off using strcmp() directly vis: ``strcmp() == 0''
120 and ``strcmp() != 0''.
122 This is because modern compilers can directly inline strcmp()
123 making the original justification for these macros - avoid function
124 call overhead by pre-testing the first characters
125 (``*X==*Y?...:0'') - redundant.
127 ``Even if [...] testing the first character does have a modest
128 performance improvement, I'd rather that whenever a performance
129 issue is found that we spend the effort on algorithmic
130 optimizations than micro-optimizing.'' J.T. */
132 /* NOTE: cagney/2003-11-23: All instances of STREQ[N] covered by
133 testing GDB on a stabs system have been replaced by equivalent
134 str[n]cmp calls. To avoid the possability of introducing bugs when
135 making untested changes, the remaining references were deprecated
136 rather than replaced. */
138 /* DISCLAIMER: cagney/2003-11-23: Simplified definition of these
139 macros so that they just map directly onto strcmp equivalent. I'm
140 not responsible for any breakage due to code that relied on the old
141 underlying implementation. */
143 #define DEPRECATED_STREQ(a,b) (strcmp ((a), (b)) == 0)
144 #define DEPRECATED_STREQN(a,b,c) (strncmp ((a), (b), (c)) == 0)
146 /* Check if a character is one of the commonly used C++ marker characters. */
147 extern int is_cplus_marker (int);
149 /* enable xdb commands if set */
150 extern int xdb_commands;
152 /* enable dbx commands if set */
153 extern int dbx_commands;
155 /* System root path, used to find libraries etc. */
156 extern char *gdb_sysroot;
158 extern int quit_flag;
159 extern int immediate_quit;
160 extern int sevenbit_strings;
162 extern void quit (void);
164 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
165 benefits of having a ``QUIT'' macro rather than a function are
166 marginal. If the overhead of a QUIT function call is proving
167 significant then its calling frequency should probably be reduced
168 [kingdon]. A profile analyzing the current situtation is
172 /* do twice to force compiler warning */
173 #define QUIT_FIXME "FIXME"
174 #define QUIT_FIXME "ignoring redefinition of QUIT"
177 if (quit_flag) quit (); \
178 if (deprecated_interactive_hook) deprecated_interactive_hook (); \
182 /* Languages represented in the symbol table and elsewhere.
183 This should probably be in language.h, but since enum's can't
184 be forward declared to satisfy opaque references before their
185 actual definition, needs to be here. */
189 language_unknown, /* Language not known */
190 language_auto, /* Placeholder for automatic setting */
192 language_cplus, /* C++ */
193 language_objc, /* Objective-C */
194 language_java, /* Java */
195 language_fortran, /* Fortran */
196 language_m2, /* Modula-2 */
197 language_asm, /* Assembly language */
198 language_scm, /* Scheme / Guile */
199 language_pascal, /* Pascal */
200 language_minimal, /* All other languages, minimal support only */
208 unspecified_precision
211 /* A generic, not quite boolean, enumeration. */
219 /* Potential ways that a function can return a value of a given type. */
220 enum return_value_convention
222 /* Where the return value has been squeezed into one or more
224 RETURN_VALUE_REGISTER_CONVENTION,
225 /* Commonly known as the "struct return convention". The caller
226 passes an additional hidden first parameter to the caller. That
227 parameter contains the address at which the value being returned
228 should be stored. While typically, and historically, used for
229 large structs, this is convention is applied to values of many
231 RETURN_VALUE_STRUCT_CONVENTION,
232 /* Like the "struct return convention" above, but where the ABI
233 guarantees that the called function stores the address at which
234 the value being returned is stored in a well-defined location,
235 such as a register or memory slot in the stack frame. Don't use
236 this if the ABI doesn't explicitly guarantees this. */
237 RETURN_VALUE_ABI_RETURNS_ADDRESS,
238 /* Like the "struct return convention" above, but where the ABI
239 guarantees that the address at which the value being returned is
240 stored will be available in a well-defined location, such as a
241 register or memory slot in the stack frame. Don't use this if
242 the ABI doesn't explicitly guarantees this. */
243 RETURN_VALUE_ABI_PRESERVES_ADDRESS,
246 /* the cleanup list records things that have to be undone
247 if an error happens (descriptors to be closed, memory to be freed, etc.)
248 Each link in the chain records a function to call and an
251 Use make_cleanup to add an element to the cleanup chain.
252 Use do_cleanups to do all cleanup actions back to a given
253 point in the chain. Use discard_cleanups to remove cleanups
254 from the chain back to a given point, not doing them. */
258 struct cleanup *next;
259 void (*function) (void *);
264 /* The ability to declare that a function never returns is useful, but
265 not really required to compile GDB successfully, so the NORETURN and
266 ATTR_NORETURN macros normally expand into nothing. */
268 /* If compiling with older versions of GCC, a function may be declared
269 "volatile" to indicate that it does not return. */
272 #if defined(__GNUC__) \
273 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
274 #define NORETURN volatile
276 #define NORETURN /* nothing */
280 /* GCC 2.5 and later versions define a function attribute "noreturn",
281 which is the preferred way to declare that a function never returns.
282 However GCC 2.7 appears to be the first version in which this fully
283 works everywhere we use it. */
285 #ifndef ATTR_NORETURN
286 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
287 #define ATTR_NORETURN __attribute__ ((noreturn))
289 #define ATTR_NORETURN /* nothing */
294 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
295 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
297 #define ATTR_FORMAT(type, x, y) /* nothing */
301 /* Be conservative and use enum bitfields only with GCC.
302 This is copied from gcc 3.3.1, system.h. */
304 #if defined(__GNUC__) && (__GNUC__ >= 2)
305 #define ENUM_BITFIELD(TYPE) enum TYPE
307 #define ENUM_BITFIELD(TYPE) unsigned int
310 /* Needed for various prototypes */
316 /* From blockframe.c */
318 extern int inside_entry_func (struct frame_info *this_frame);
322 extern void initialize_utils (void);
324 extern void notice_quit (void);
326 extern int strcmp_iw (const char *, const char *);
328 extern int strcmp_iw_ordered (const char *, const char *);
330 extern int streq (const char *, const char *);
332 extern int subset_compare (char *, char *);
334 extern char *safe_strerror (int);
336 extern void request_quit (int);
338 extern void do_cleanups (struct cleanup *);
339 extern void do_final_cleanups (struct cleanup *);
340 extern void do_run_cleanups (struct cleanup *);
341 extern void do_exec_cleanups (struct cleanup *);
342 extern void do_exec_error_cleanups (struct cleanup *);
344 extern void discard_cleanups (struct cleanup *);
345 extern void discard_final_cleanups (struct cleanup *);
346 extern void discard_exec_error_cleanups (struct cleanup *);
347 extern void discard_my_cleanups (struct cleanup **, struct cleanup *);
349 /* NOTE: cagney/2000-03-04: This typedef is strictly for the
350 make_cleanup function declarations below. Do not use this typedef
351 as a cast when passing functions into the make_cleanup() code.
352 Instead either use a bounce function or add a wrapper function.
353 Calling a f(char*) function with f(void*) is non-portable. */
354 typedef void (make_cleanup_ftype) (void *);
356 extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *);
358 extern struct cleanup *make_cleanup_freeargv (char **);
361 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
363 struct section_addr_info;
364 extern struct cleanup *(make_cleanup_free_section_addr_info
365 (struct section_addr_info *));
367 extern struct cleanup *make_cleanup_close (int fd);
369 extern struct cleanup *make_cleanup_bfd_close (bfd *abfd);
371 extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
373 extern struct cleanup *make_my_cleanup (struct cleanup **,
374 make_cleanup_ftype *, void *);
376 extern struct cleanup *make_run_cleanup (make_cleanup_ftype *, void *);
378 extern struct cleanup *make_exec_cleanup (make_cleanup_ftype *, void *);
379 extern struct cleanup *make_exec_error_cleanup (make_cleanup_ftype *, void *);
381 extern struct cleanup *save_cleanups (void);
382 extern struct cleanup *save_final_cleanups (void);
383 extern struct cleanup *save_my_cleanups (struct cleanup **);
385 extern void restore_cleanups (struct cleanup *);
386 extern void restore_final_cleanups (struct cleanup *);
387 extern void restore_my_cleanups (struct cleanup **, struct cleanup *);
389 extern void free_current_contents (void *);
391 extern void null_cleanup (void *);
393 extern int myread (int, char *, int);
395 extern int query (const char *, ...) ATTR_FORMAT (printf, 1, 2);
396 extern int nquery (const char *, ...) ATTR_FORMAT (printf, 1, 2);
397 extern int yquery (const char *, ...) ATTR_FORMAT (printf, 1, 2);
399 extern void init_page_info (void);
401 extern char *gdb_realpath (const char *);
402 extern char *xfullpath (const char *);
404 extern unsigned long gnu_debuglink_crc32 (unsigned long crc,
405 unsigned char *buf, size_t len);
407 /* From demangle.c */
409 extern void set_demangling_style (char *);
414 typedef int (use_struct_convention_fn) (int gcc_p, struct type * value_type);
415 extern use_struct_convention_fn generic_use_struct_convention;
418 /* Annotation stuff. */
420 extern int annotation_level; /* in stack.c */
422 extern void begin_line (void);
424 extern void wrap_here (char *);
426 extern void reinitialize_more_filter (void);
429 extern struct ui_file *gdb_stdout;
431 extern struct ui_file *gdb_stdin;
432 /* Serious error notifications */
433 extern struct ui_file *gdb_stderr;
434 /* Log/debug/trace messages that should bypass normal stdout/stderr
435 filtering. For moment, always call this stream using
436 *_unfiltered. In the very near future that restriction shall be
437 removed - either call shall be unfiltered. (cagney 1999-06-13). */
438 extern struct ui_file *gdb_stdlog;
439 /* Target output that should bypass normal stdout/stderr filtering.
440 For moment, always call this stream using *_unfiltered. In the
441 very near future that restriction shall be removed - either call
442 shall be unfiltered. (cagney 1999-07-02). */
443 extern struct ui_file *gdb_stdtarg;
444 extern struct ui_file *gdb_stdtargerr;
445 extern struct ui_file *gdb_stdtargin;
449 /* More generic printf like operations. Filtered versions may return
450 non-locally on error. */
452 extern void fputs_filtered (const char *, struct ui_file *);
454 extern void fputs_unfiltered (const char *, struct ui_file *);
456 extern int fputc_filtered (int c, struct ui_file *);
458 extern int fputc_unfiltered (int c, struct ui_file *);
460 extern int putchar_filtered (int c);
462 extern int putchar_unfiltered (int c);
464 extern void puts_filtered (const char *);
466 extern void puts_unfiltered (const char *);
468 extern void puts_filtered_tabular (char *string, int width, int right);
470 extern void puts_debug (char *prefix, char *string, char *suffix);
472 extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
474 extern void vfprintf_filtered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
476 extern void fprintf_filtered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
478 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 3, 4);
480 extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
482 extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf, 2, 3);
484 extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
486 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
488 extern void fprintf_unfiltered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
490 extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
492 extern void print_spaces (int, struct ui_file *);
494 extern void print_spaces_filtered (int, struct ui_file *);
496 extern char *n_spaces (int);
498 extern void fputstr_filtered (const char *str, int quotr, struct ui_file * stream);
500 extern void fputstr_unfiltered (const char *str, int quotr, struct ui_file * stream);
502 extern void fputstrn_unfiltered (const char *str, int n, int quotr, struct ui_file * stream);
504 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
505 extern void gdb_print_host_address (const void *addr, struct ui_file *stream);
507 /* Convert a CORE_ADDR into a HEX string. paddr() is like %08lx.
508 paddr_nz() is like %lx. paddr_u() is like %lu. paddr_width() is
510 extern int strlen_paddr (void);
511 extern char *paddr (CORE_ADDR addr);
512 extern char *paddr_nz (CORE_ADDR addr);
513 extern char *paddr_u (CORE_ADDR addr);
514 extern char *paddr_d (LONGEST addr);
516 extern char *phex (ULONGEST l, int sizeof_l);
517 extern char *phex_nz (ULONGEST l, int sizeof_l);
518 extern char *int_string (LONGEST, int, int, int, int);
520 /* Like paddr() only print/scan raw CORE_ADDR. The output from
521 core_addr_to_string() can be passed direct to
522 string_to_core_addr(). */
523 extern const char *core_addr_to_string (const CORE_ADDR addr);
524 extern const char *core_addr_to_string_nz (const CORE_ADDR addr);
525 extern CORE_ADDR string_to_core_addr (const char *my_string);
527 /* Return a string that contains a number formatted as a hex
529 extern char *hex_string (LONGEST);
530 extern char *hex_string_custom (LONGEST, int);
532 extern void fprintf_symbol_filtered (struct ui_file *, char *,
535 extern NORETURN void perror_with_name (const char *) ATTR_NORETURN;
537 extern void print_sys_errmsg (const char *, int);
539 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
540 "const char *" in unistd.h, so we can't declare the argument
543 extern char *re_comp (const char *);
547 extern void symbol_file_command (char *, int);
549 /* Remote targets may wish to use this as their load function. */
550 extern void generic_load (char *name, int from_tty);
552 /* Summarise a download */
553 extern void print_transfer_performance (struct ui_file *stream,
554 unsigned long data_count,
555 unsigned long write_count,
556 unsigned long time_count);
560 typedef void initialize_file_ftype (void);
562 extern char *skip_quoted (char *);
564 extern char *gdb_readline (char *);
566 extern char *gdb_readline_wrapper (char *);
568 extern char *command_line_input (char *, int, char *);
570 extern void print_prompt (void);
572 extern int input_from_terminal_p (void);
574 extern int info_verbose;
576 /* From printcmd.c */
578 extern void set_next_address (CORE_ADDR);
580 extern void print_address_symbolic (CORE_ADDR, struct ui_file *, int,
583 extern int build_address_symbolic (CORE_ADDR addr,
591 extern void print_address_numeric (CORE_ADDR, int, struct ui_file *);
593 extern void print_address (CORE_ADDR, struct ui_file *);
597 #define OPF_TRY_CWD_FIRST 0x01
598 #define OPF_SEARCH_IN_PATH 0x02
600 extern int openp (const char *, int, const char *, int, int, char **);
602 extern int source_full_path_of (char *, char **);
604 extern void mod_path (char *, char **);
606 extern void add_path (char *, char **, int);
608 extern void directory_command (char *, int);
610 extern char *source_path;
612 extern void init_source_path (void);
614 extern void init_last_source_visited (void);
618 extern void exec_set_section_offsets (bfd_signed_vma text_off,
619 bfd_signed_vma data_off,
620 bfd_signed_vma bss_off);
622 /* Take over the 'find_mapped_memory' vector from exec.c. */
623 extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR,
629 /* Possible lvalue types. Like enum language, this should be in
630 value.h, but needs to be here for the same reason. */
636 /* In memory. Could be a saved register. */
640 /* In a gdb internal variable. */
642 /* Part of a gdb internal variable (structure field). */
643 lval_internalvar_component,
644 /* In a register series in a frame not the current one, which may have been
645 partially saved or saved in different places (otherwise would be
646 lval_register or lval_memory). */
647 lval_reg_frame_relative
650 /* Control types for commands */
652 enum misc_command_type
660 enum command_control_type
670 /* Structure for saved commands lines
671 (for breakpoints, defined commands, etc). */
675 struct command_line *next;
677 enum command_control_type control_type;
679 struct command_line **body_list;
682 extern struct command_line *read_command_lines (char *, int);
684 extern void free_command_lines (struct command_line **);
686 /* To continue the execution commands when running gdb asynchronously.
687 A continuation structure contains a pointer to a function to be called
688 to finish the command, once the target has stopped. Such mechanism is
689 used bt the finish and until commands, and in the remote protocol
690 when opening an extended-remote connection. */
692 struct continuation_arg
694 struct continuation_arg *next;
695 union continuation_data {
704 void (*continuation_hook) (struct continuation_arg *);
705 struct continuation_arg *arg_list;
706 struct continuation *next;
710 extern struct continuation *cmd_continuation;
711 /* Used only by the step_1 function. */
712 extern struct continuation *intermediate_continuation;
715 extern void add_continuation (void (*)(struct continuation_arg *),
716 struct continuation_arg *);
717 extern void do_all_continuations (void);
718 extern void discard_all_continuations (void);
720 extern void add_intermediate_continuation (void (*)(struct continuation_arg *),
721 struct continuation_arg *);
722 extern void do_all_intermediate_continuations (void);
723 extern void discard_all_intermediate_continuations (void);
725 /* String containing the current directory (what getwd would return). */
727 extern char *current_directory;
729 /* Default radixes for input and output. Only some values supported. */
730 extern unsigned input_radix;
731 extern unsigned output_radix;
733 /* Possibilities for prettyprint parameters to routines which print
734 things. Like enum language, this should be in value.h, but needs
735 to be here for the same reason. FIXME: If we can eliminate this
736 as an arg to LA_VAL_PRINT, then we can probably move it back to
741 Val_no_prettyprint = 0,
743 /* Use the default setting which the user has specified. */
747 /* The ptid struct is a collection of the various "ids" necessary
748 for identifying the inferior. This consists of the process id
749 (pid), thread id (tid), and other fields necessary for uniquely
750 identifying the inferior process/thread being debugged. When
751 manipulating ptids, the constructors, accessors, and predicate
752 declared in inferior.h should be used. These are as follows:
754 ptid_build - Make a new ptid from a pid, lwp, and tid.
755 pid_to_ptid - Make a new ptid from just a pid.
756 ptid_get_pid - Fetch the pid component of a ptid.
757 ptid_get_lwp - Fetch the lwp component of a ptid.
758 ptid_get_tid - Fetch the tid component of a ptid.
759 ptid_equal - Test to see if two ptids are equal.
761 Please do NOT access the struct ptid members directly (except, of
762 course, in the implementation of the above ptid manipulation
770 /* Lightweight process id */
777 typedef struct ptid ptid_t;
781 /* Optional host machine definition. Pure autoconf targets will not
782 need a "xm.h" file. This will be a symlink to one of the xm-*.h
783 files, built by the `configure' script. */
789 /* Optional native machine support. Non-native (and possibly pure
790 multi-arch) targets do not need a "nm.h" file. This will be a
791 symlink to one of the nm-*.h files, built by the `configure'
798 /* Optional target machine definition. Pure multi-arch configurations
799 do not need a "tm.h" file. This will be a symlink to one of the
800 tm-*.h files, built by the `configure' script. */
806 /* If the xm.h file did not define the mode string used to open the
807 files, assume that binary files are opened the same way as text
810 #include "fopen-same.h"
813 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
814 FIXME: Assumes 2's complement arithmetic */
816 #if !defined (UINT_MAX)
817 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
820 #if !defined (INT_MAX)
821 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
824 #if !defined (INT_MIN)
825 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
828 #if !defined (ULONG_MAX)
829 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
832 #if !defined (LONG_MAX)
833 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
836 #if !defined (ULONGEST_MAX)
837 #define ULONGEST_MAX (~(ULONGEST)0) /* 0xFFFFFFFFFFFFFFFF for 64-bits */
840 #if !defined (LONGEST_MAX) /* 0x7FFFFFFFFFFFFFFF for 64-bits */
841 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
844 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
845 arguments to a function, number in a value history, register number, etc.)
846 where the value must not be larger than can fit in an int. */
848 extern int longest_to_int (LONGEST);
850 /* Assorted functions we can declare, now that const and volatile are
853 extern char *savestring (const char *, size_t);
855 extern char *msavestring (void *, const char *, size_t);
857 extern char *mstrsave (void *, const char *);
859 /* xmalloc(), xrealloc() and xcalloc() have already been declared in
861 extern void xfree (void *);
863 /* Utility macros to allocate typed memory. Avoids errors like:
864 struct foo *foo = xmalloc (sizeof struct bar); and memset (foo,
865 sizeof (struct foo), 0). */
866 #define XZALLOC(TYPE) ((TYPE*) memset (xmalloc (sizeof (TYPE)), 0, sizeof (TYPE)))
867 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
868 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE)))
870 /* Like asprintf/vasprintf but get an internal_error if the call
872 extern void xasprintf (char **ret, const char *format, ...) ATTR_FORMAT (printf, 2, 3);
873 extern void xvasprintf (char **ret, const char *format, va_list ap);
875 /* Like asprintf and vasprintf, but return the string, throw an error
877 extern char *xstrprintf (const char *format, ...) ATTR_FORMAT (printf, 1, 2);
878 extern char *xstrvprintf (const char *format, va_list ap);
880 extern int parse_escape (char **);
882 /* Message to be printed before the error message, when an error occurs. */
884 extern char *error_pre_print;
886 /* Message to be printed before the error message, when an error occurs. */
888 extern char *quit_pre_print;
890 /* Message to be printed before the warning message, when a warning occurs. */
892 extern char *warning_pre_print;
894 extern NORETURN void verror (const char *fmt, va_list ap) ATTR_NORETURN;
896 extern NORETURN void error (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
898 extern NORETURN void error_silent (const char *fmt, ...) ATTR_NORETURN ATTR_FORMAT (printf, 1, 2);
900 extern NORETURN void error_stream (struct ui_file *) ATTR_NORETURN;
902 /* Initialize the error buffer. */
903 extern void error_init (void);
905 /* Returns a freshly allocate buffer containing the last error
907 extern char *error_last_message (void);
909 /* Output arbitrary error message. */
910 extern void error_output_message (char *pre_print, char *msg);
912 extern NORETURN void internal_verror (const char *file, int line,
913 const char *, va_list ap) ATTR_NORETURN;
915 extern NORETURN void internal_error (const char *file, int line,
916 const char *, ...) ATTR_NORETURN ATTR_FORMAT (printf, 3, 4);
918 extern void internal_vwarning (const char *file, int line,
919 const char *, va_list ap);
921 extern void internal_warning (const char *file, int line,
922 const char *, ...) ATTR_FORMAT (printf, 3, 4);
924 extern NORETURN void nomem (long) ATTR_NORETURN;
926 /* Reasons for calling throw_exception(). NOTE: all reason values
927 must be less than zero. enum value 0 is reserved for internal use
928 as the return value from an initial setjmp(). The function
929 catch_exceptions() reserves values >= 0 as legal results from its
934 /* User interrupt. */
936 /* Any other error. */
940 #define ALL_CLEANUPS ((struct cleanup *)0)
942 #define RETURN_MASK(reason) (1 << (int)(-reason))
943 #define RETURN_MASK_QUIT RETURN_MASK (RETURN_QUIT)
944 #define RETURN_MASK_ERROR RETURN_MASK (RETURN_ERROR)
945 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
946 typedef int return_mask;
948 /* Throw an exception of type RETURN_REASON. Will execute a LONG JUMP
949 to the inner most containing exception handler established using
950 catch_exceptions() (or the legacy catch_errors()).
952 Code normally throws an exception using error() et.al. For various
953 reaons, GDB also contains code that throws an exception directly.
954 For instance, the remote*.c targets contain CNTRL-C signal handlers
955 that propogate the QUIT event up the exception chain. ``This could
956 be a good thing or a dangerous thing.'' -- the Existential Wombat. */
958 extern NORETURN void throw_exception (enum return_reason) ATTR_NORETURN;
960 /* Call FUNC(UIOUT, FUNC_ARGS) but wrapped within an exception
961 handler. If an exception (enum return_reason) is thrown using
962 throw_exception() than all cleanups installed since
963 catch_exceptions() was entered are invoked, the (-ve) exception
964 value is then returned by catch_exceptions. If FUNC() returns
965 normally (with a postive or zero return value) then that value is
966 returned by catch_exceptions(). It is an internal_error() for
967 FUNC() to return a negative value.
969 For the period of the FUNC() call: UIOUT is installed as the output
970 builder; ERRSTRING is installed as the error/quit message; and a
971 new cleanup_chain is established. The old values are restored
972 before catch_exceptions() returns.
974 The variant catch_exceptions_with_msg() is the same as
975 catch_exceptions() but adds the ability to return an allocated
976 copy of the gdb error message. This is used when a silent error is
977 issued and the caller wants to manually issue the error message.
979 FIXME; cagney/2001-08-13: The need to override the global UIOUT
980 builder variable should just go away.
982 This function superseeds catch_errors().
984 This function uses SETJMP() and LONGJUMP(). */
987 typedef int (catch_exceptions_ftype) (struct ui_out *ui_out, void *args);
988 extern int catch_exceptions (struct ui_out *uiout,
989 catch_exceptions_ftype *func, void *func_args,
990 char *errstring, return_mask mask);
991 extern int catch_exceptions_with_msg (struct ui_out *uiout,
992 catch_exceptions_ftype *func,
994 char *errstring, char **gdberrmsg,
997 /* If CATCH_ERRORS_FTYPE throws an error, catch_errors() returns zero
998 otherwize the result from CATCH_ERRORS_FTYPE is returned. It is
999 probably useful for CATCH_ERRORS_FTYPE to always return a non-zero
1000 value. It's unfortunate that, catch_errors() does not return an
1001 indication of the exact exception that it caught - quit_flag might
1004 This function is superseeded by catch_exceptions(). */
1006 typedef int (catch_errors_ftype) (void *);
1007 extern int catch_errors (catch_errors_ftype *, void *, char *, return_mask);
1009 /* Template to catch_errors() that wraps calls to command
1012 typedef void (catch_command_errors_ftype) (char *, int);
1013 extern int catch_command_errors (catch_command_errors_ftype *func, char *command, int from_tty, return_mask);
1015 extern void warning (const char *, ...) ATTR_FORMAT (printf, 1, 2);
1017 extern void vwarning (const char *, va_list args);
1019 /* List of known OS ABIs. If you change this, make sure to update the
1020 table in osabi.c. */
1023 GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info. */
1025 GDB_OSABI_UNKNOWN = 0, /* keep this zero */
1032 GDB_OSABI_FREEBSD_AOUT,
1033 GDB_OSABI_FREEBSD_ELF,
1034 GDB_OSABI_NETBSD_AOUT,
1035 GDB_OSABI_NETBSD_ELF,
1036 GDB_OSABI_OPENBSD_ELF,
1046 GDB_OSABI_ARM_EABI_V1,
1047 GDB_OSABI_ARM_EABI_V2,
1053 GDB_OSABI_INVALID /* keep this last */
1056 /* Global functions from other, non-gdb GNU thingies.
1057 Libiberty thingies are no longer declared here. We include libiberty.h
1060 /* From other system libraries */
1062 #ifdef HAVE_STDDEF_H
1066 #ifdef HAVE_STDLIB_H
1070 #define min(a, b) ((a) < (b) ? (a) : (b))
1073 #define max(a, b) ((a) > (b) ? (a) : (b))
1078 extern double atof (const char *); /* X3.159-1989 4.10.1.1 */
1081 /* Various possibilities for alloca. */
1084 #define alloca __builtin_alloca
1085 #else /* Not GNU C */
1086 #ifdef HAVE_ALLOCA_H
1093 /* We need to be careful not to declare this in a way which conflicts with
1094 bison. Bison never declares it as char *, but under various circumstances
1095 (like __hpux) we need to use void *. */
1096 extern void *alloca ();
1097 #endif /* Not _AIX */
1098 #endif /* Not HAVE_ALLOCA_H */
1099 #endif /* Not GNU C */
1100 #endif /* alloca not defined */
1102 /* Dynamic target-system-dependent parameters for GDB. */
1103 #include "gdbarch.h"
1105 /* Maximum size of a register. Something small, but large enough for
1106 all known ISAs. If it turns out to be too small, make it bigger. */
1108 enum { MAX_REGISTER_SIZE = 16 };
1110 /* Static target-system-dependent parameters for GDB. */
1112 /* Number of bits in a char or unsigned char for the target machine.
1113 Just like CHAR_BIT in <limits.h> but describes the target machine. */
1114 #if !defined (TARGET_CHAR_BIT)
1115 #define TARGET_CHAR_BIT 8
1118 /* If we picked up a copy of CHAR_BIT from a configuration file
1119 (which may get it by including <limits.h>) then use it to set
1120 the number of bits in a host char. If not, use the same size
1123 #if defined (CHAR_BIT)
1124 #define HOST_CHAR_BIT CHAR_BIT
1126 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1129 /* The bit byte-order has to do just with numbering of bits in
1130 debugging symbols and such. Conceptually, it's quite separate
1131 from byte/word byte order. */
1133 #if !defined (BITS_BIG_ENDIAN)
1134 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
1139 extern LONGEST extract_signed_integer (const void *, int);
1141 extern ULONGEST extract_unsigned_integer (const void *, int);
1143 extern int extract_long_unsigned_integer (const void *, int, LONGEST *);
1145 extern CORE_ADDR extract_typed_address (const void *buf, struct type *type);
1147 extern void store_signed_integer (void *, int, LONGEST);
1149 extern void store_unsigned_integer (void *, int, ULONGEST);
1151 extern void store_typed_address (void *buf, struct type *type, CORE_ADDR addr);
1156 extern CORE_ADDR push_bytes (CORE_ADDR, char *, int);
1158 extern CORE_ADDR push_word (CORE_ADDR, ULONGEST);
1160 extern int watchdog;
1162 /* Hooks for alternate command interfaces. */
1164 /* The name of the interpreter if specified on the command line. */
1165 extern char *interpreter_p;
1167 /* If a given interpreter matches INTERPRETER_P then it should update
1168 deprecated_command_loop_hook and deprecated_init_ui_hook with the
1169 per-interpreter implementation. */
1170 /* FIXME: deprecated_command_loop_hook and deprecated_init_ui_hook
1171 should be moved here. */
1173 struct target_waitstatus;
1174 struct cmd_list_element;
1176 extern void (*deprecated_pre_add_symbol_hook) (const char *);
1177 extern void (*deprecated_post_add_symbol_hook) (void);
1178 extern void (*selected_frame_level_changed_hook) (int);
1179 extern int (*deprecated_ui_loop_hook) (int signo);
1180 extern void (*deprecated_init_ui_hook) (char *argv0);
1181 extern void (*deprecated_command_loop_hook) (void);
1182 extern void (*deprecated_show_load_progress) (const char *section,
1183 unsigned long section_sent,
1184 unsigned long section_size,
1185 unsigned long total_sent,
1186 unsigned long total_size);
1187 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
1188 int line, int stopline,
1190 extern struct frame_info *parse_frame_specification (char *frame_exp);
1191 extern int (*deprecated_query_hook) (const char *, va_list);
1192 extern void (*deprecated_warning_hook) (const char *, va_list);
1193 extern void (*deprecated_flush_hook) (struct ui_file * stream);
1194 extern void (*deprecated_create_breakpoint_hook) (struct breakpoint * b);
1195 extern void (*deprecated_delete_breakpoint_hook) (struct breakpoint * bpt);
1196 extern void (*deprecated_modify_breakpoint_hook) (struct breakpoint * bpt);
1197 extern void (*deprecated_interactive_hook) (void);
1198 extern void (*deprecated_registers_changed_hook) (void);
1199 extern void (*deprecated_readline_begin_hook) (char *,...);
1200 extern char *(*deprecated_readline_hook) (char *);
1201 extern void (*deprecated_readline_end_hook) (void);
1202 extern void (*deprecated_register_changed_hook) (int regno);
1203 extern void (*deprecated_memory_changed_hook) (CORE_ADDR addr, int len);
1204 extern void (*deprecated_context_hook) (int);
1205 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
1206 struct target_waitstatus * status);
1208 extern void (*deprecated_attach_hook) (void);
1209 extern void (*deprecated_detach_hook) (void);
1210 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
1211 char *cmd, int from_tty);
1213 extern void (*deprecated_set_hook) (struct cmd_list_element * c);
1215 extern void (*deprecated_error_hook) (void);
1217 extern void (*deprecated_error_begin_hook) (void);
1219 extern int (*deprecated_ui_load_progress_hook) (const char *section,
1223 /* Inhibit window interface if non-zero. */
1225 extern int use_windows;
1227 /* Symbolic definitions of filename-related things. */
1228 /* FIXME, this doesn't work very well if host and executable
1229 filesystems conventions are different. */
1231 #ifndef DIRNAME_SEPARATOR
1232 #define DIRNAME_SEPARATOR ':'
1235 #ifndef SLASH_STRING
1236 #define SLASH_STRING "/"
1241 # define GLOBAL_CURDIR
1244 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
1245 The name ``TIDGET'' is a historical accident. Many uses of TIDGET
1246 in the code actually refer to a lightweight process id, i.e,
1247 something that can be considered a process id in its own right for
1248 certain purposes. */
1251 #define PIDGET(PTID) (ptid_get_pid (PTID))
1252 #define TIDGET(PTID) (ptid_get_lwp (PTID))
1253 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
1256 /* Define well known filenos if the system does not define them. */
1257 #ifndef STDIN_FILENO
1258 #define STDIN_FILENO 0
1260 #ifndef STDOUT_FILENO
1261 #define STDOUT_FILENO 1
1263 #ifndef STDERR_FILENO
1264 #define STDERR_FILENO 2
1267 /* If this definition isn't overridden by the header files, assume
1268 that isatty and fileno exist on this system. */
1270 #define ISATTY(FP) (isatty (fileno (FP)))
1273 /* Ensure that V is aligned to an N byte boundary (B's assumed to be a
1274 power of 2). Round up/down when necessary. Examples of correct
1277 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
1278 write_memory (addr, value, len);
1283 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
1284 write_memory (sp, value, len);
1286 Note that uses such as:
1288 write_memory (addr, value, len);
1289 addr += align_up (len, 8);
1293 sp -= align_up (len, 8);
1294 write_memory (sp, value, len);
1296 are typically not correct as they don't ensure that the address (SP
1297 or ADDR) is correctly aligned (relying on previous alignment to
1298 keep things right). This is also why the methods are called
1299 "align_..." instead of "round_..." as the latter reads better with
1300 this incorrect coding style. */
1302 extern ULONGEST align_up (ULONGEST v, int n);
1303 extern ULONGEST align_down (ULONGEST v, int n);
1305 #endif /* #ifndef DEFS_H */