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, 89, 91, 92, 93, 94, 95, 96, 98, 1999
4 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
26 #include "config.h" /* Generated by configure */
28 #include <errno.h> /* System call error return status */
34 # include <sys/types.h> /* for size_t */
41 /* Just in case they're not defined in stdio.h. */
50 /* First include ansidecl.h so we can use the various macro definitions
51 here and in all subsequent file inclusions. */
55 #include <stdarg.h> /* for va_list */
57 #include "libiberty.h"
59 /* libiberty.h can't declare this one, but evidently we can. */
60 extern char *strsignal PARAMS ((int));
68 /* For BFD64 and bfd_vma. */
71 /* An address in the program being debugged. Host byte order. Rather
72 than duplicate all the logic in BFD which figures out what type
73 this is (long, long long, etc.) and whether it needs to be 64
74 bits (the host/target interactions are subtle), we just use
77 typedef bfd_vma CORE_ADDR;
79 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
85 #define LONGEST BFD_HOST_64_BIT
86 #define ULONGEST BFD_HOST_U_64_BIT
90 # ifdef CC_HAS_LONG_LONG
91 # define LONGEST long long
92 # define ULONGEST unsigned long long
94 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
95 (e.g. i386-windows) so try it. */
96 # ifdef BFD_HOST_64_BIT
97 # define LONGEST BFD_HOST_64_BIT
98 # define ULONGEST BFD_HOST_U_64_BIT
100 # define LONGEST long
101 # define ULONGEST unsigned long
105 #endif /* No BFD64 */
107 #endif /* ! LONGEST */
109 extern int core_addr_lessthan PARAMS ((CORE_ADDR lhs, CORE_ADDR rhs));
110 extern int core_addr_greaterthan PARAMS ((CORE_ADDR lhs, CORE_ADDR rhs));
114 #define min(a, b) ((a) < (b) ? (a) : (b))
117 #define max(a, b) ((a) > (b) ? (a) : (b))
120 /* Gdb does *lots* of string compares. Use macros to speed them up by
121 avoiding function calls if the first characters are not the same. */
123 #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b))
124 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
125 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
127 /* The character GNU C++ uses to build identifiers that must be unique from
128 the program's identifiers (such as $this and $$vptr). */
129 #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
131 /* Check if a character is one of the commonly used C++ marker characters. */
132 extern int is_cplus_marker PARAMS ((int));
134 /* use tui interface if non-zero */
135 extern int tui_version;
138 /* all invocations of TUIDO should have two sets of parens */
139 #define TUIDO(x) tuiDo x
144 /* enable xdb commands if set */
145 extern int xdb_commands;
147 /* enable dbx commands if set */
148 extern int dbx_commands;
150 extern int quit_flag;
151 extern int immediate_quit;
152 extern int sevenbit_strings;
154 extern void quit PARAMS ((void));
157 /* do twice to force compiler warning */
158 #define QUIT_FIXME "FIXME"
159 #define QUIT_FIXME "ignoring redefinition of QUIT"
162 if (quit_flag) quit (); \
163 if (interactive_hook) interactive_hook (); \
168 /* Command classes are top-level categories into which commands are broken
169 down for "help" purposes.
170 Notes on classes: class_alias is for alias commands which are not
171 abbreviations of the original command. class-pseudo is for commands
172 which are not really commands nor help topics ("stop"). */
176 /* Special args to help_list */
177 all_classes = -2, all_commands = -1,
178 /* Classes of commands */
179 no_class = -1, class_run = 0, class_vars, class_stack,
180 class_files, class_support, class_info, class_breakpoint, class_trace,
181 class_alias, class_obscure, class_user, class_maintenance,
182 class_pseudo, class_tui, class_xdb
185 /* Languages represented in the symbol table and elsewhere.
186 This should probably be in language.h, but since enum's can't
187 be forward declared to satisfy opaque references before their
188 actual definition, needs to be here. */
192 language_unknown, /* Language not known */
193 language_auto, /* Placeholder for automatic setting */
195 language_cplus, /* C++ */
196 language_java, /* Java */
197 language_chill, /* Chill */
198 language_fortran, /* Fortran */
199 language_m2, /* Modula-2 */
200 language_asm, /* Assembly language */
201 language_scm /* Scheme / Guile */
208 unspecified_precision
211 /* the cleanup list records things that have to be undone
212 if an error happens (descriptors to be closed, memory to be freed, etc.)
213 Each link in the chain records a function to call and an
216 Use make_cleanup to add an element to the cleanup chain.
217 Use do_cleanups to do all cleanup actions back to a given
218 point in the chain. Use discard_cleanups to remove cleanups
219 from the chain back to a given point, not doing them. */
223 struct cleanup *next;
224 void (*function) PARAMS ((PTR));
229 /* The ability to declare that a function never returns is useful, but
230 not really required to compile GDB successfully, so the NORETURN and
231 ATTR_NORETURN macros normally expand into nothing. */
233 /* If compiling with older versions of GCC, a function may be declared
234 "volatile" to indicate that it does not return. */
237 # if defined(__GNUC__) \
238 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
239 # define NORETURN volatile
241 # define NORETURN /* nothing */
245 /* GCC 2.5 and later versions define a function attribute "noreturn",
246 which is the preferred way to declare that a function never returns.
247 However GCC 2.7 appears to be the first version in which this fully
248 works everywhere we use it. */
250 #ifndef ATTR_NORETURN
251 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 7
252 # define ATTR_NORETURN __attribute__ ((noreturn))
254 # define ATTR_NORETURN /* nothing */
259 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 4
260 # define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
262 # define ATTR_FORMAT(type, x, y) /* nothing */
266 /* Needed for various prototypes */
271 /* From blockframe.c */
273 extern int inside_entry_func PARAMS ((CORE_ADDR));
275 extern int inside_entry_file PARAMS ((CORE_ADDR addr));
277 extern int inside_main_func PARAMS ((CORE_ADDR pc));
279 /* From ch-lang.c, for the moment. (FIXME) */
281 extern char *chill_demangle PARAMS ((const char *));
285 extern void initialize_utils PARAMS ((void));
287 extern void notice_quit PARAMS ((void));
289 extern int strcmp_iw PARAMS ((const char *, const char *));
291 extern int subset_compare PARAMS ((char *, char *));
293 extern char *safe_strerror PARAMS ((int));
295 extern char *safe_strsignal PARAMS ((int));
297 extern void init_malloc PARAMS ((void *));
299 extern void request_quit PARAMS ((int));
301 extern void do_cleanups PARAMS ((struct cleanup *));
302 extern void do_final_cleanups PARAMS ((struct cleanup *));
303 extern void do_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
304 extern void do_run_cleanups PARAMS ((struct cleanup *));
305 extern void do_exec_cleanups PARAMS ((struct cleanup *));
307 extern void discard_cleanups PARAMS ((struct cleanup *));
308 extern void discard_final_cleanups PARAMS ((struct cleanup *));
309 extern void discard_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
311 typedef void (*make_cleanup_func) PARAMS ((void *));
313 extern struct cleanup *make_cleanup PARAMS ((make_cleanup_func, void *));
315 extern struct cleanup *make_cleanup_freeargv PARAMS ((char **));
317 extern struct cleanup *make_final_cleanup PARAMS ((make_cleanup_func, void *));
319 extern struct cleanup *make_my_cleanup PARAMS ((struct cleanup **,
320 make_cleanup_func, void *));
322 extern struct cleanup *make_run_cleanup PARAMS ((make_cleanup_func, void *));
324 extern struct cleanup *make_exec_cleanup PARAMS ((make_cleanup_func, void *));
326 extern struct cleanup *save_cleanups PARAMS ((void));
327 extern struct cleanup *save_final_cleanups PARAMS ((void));
328 extern struct cleanup *save_my_cleanups PARAMS ((struct cleanup **));
330 extern void restore_cleanups PARAMS ((struct cleanup *));
331 extern void restore_final_cleanups PARAMS ((struct cleanup *));
332 extern void restore_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
334 extern void free_current_contents PARAMS ((char **));
336 extern void null_cleanup PARAMS ((PTR));
338 extern int myread PARAMS ((int, char *, int));
340 extern int query PARAMS((char *, ...))
341 ATTR_FORMAT(printf, 1, 2);
343 #if !defined (USE_MMALLOC)
344 extern PTR mmalloc PARAMS ((PTR, size_t));
345 extern PTR mrealloc PARAMS ((PTR, PTR, size_t));
346 extern void mfree PARAMS ((PTR, PTR));
349 extern void init_page_info PARAMS ((void));
351 /* From demangle.c */
353 extern void set_demangling_style PARAMS ((char *));
358 typedef int (use_struct_convention_fn) PARAMS ((int gcc_p, struct type *value_type));
359 extern use_struct_convention_fn generic_use_struct_convention;
361 typedef unsigned char *(breakpoint_from_pc_fn) PARAMS ((CORE_ADDR *pcptr, int *lenptr));
365 /* Annotation stuff. */
367 extern int annotation_level; /* in stack.c */
369 extern void begin_line PARAMS ((void));
371 extern void wrap_here PARAMS ((char *));
373 extern void reinitialize_more_filter PARAMS ((void));
376 typedef struct gdb_file GDB_FILE; /* deprecated */
379 extern GDB_FILE *gdb_stdout;
380 /* Serious error notifications */
381 extern GDB_FILE *gdb_stderr;
382 /* Log/debug/trace messages that should bypass normal stdout/stderr
383 filtering. For momement, always call this stream using
384 *_unfiltered. In the very near future that restriction shall be
385 removed - either call shall be unfiltered. (cagney 1999-06-13). */
386 extern GDB_FILE *gdb_stdlog;
387 /* Target output that should bypass normal stdout/stderr filtering.
388 For momement, always call this stream using *_unfiltered. In the
389 very near future that restriction shall be removed - either call
390 shall be unfiltered. (cagney 1999-07-02). */
391 extern GDB_FILE *gdb_stdtarg;
395 #include "tuiCommand.h"
398 #include "tuiLayout.h"
402 /* Create a new gdb_file with the specified methods. */
404 typedef void (gdb_file_flush_ftype) PARAMS ((struct gdb_file *stream));
405 extern void set_gdb_file_flush PARAMS ((struct gdb_file *stream, gdb_file_flush_ftype *flush));
407 typedef void (gdb_file_fputs_ftype) PARAMS ((const char *, struct gdb_file *stream));
408 extern void set_gdb_file_fputs PARAMS ((struct gdb_file *stream, gdb_file_fputs_ftype *fputs));
410 typedef int (gdb_file_isatty_ftype) PARAMS ((struct gdb_file *stream));
411 extern void set_gdb_file_isatty PARAMS ((struct gdb_file *stream, gdb_file_isatty_ftype *isatty));
413 typedef void (gdb_file_rewind_ftype) PARAMS ((struct gdb_file *stream));
414 extern void set_gdb_file_rewind PARAMS ((struct gdb_file *stream, gdb_file_rewind_ftype *rewind));
416 typedef void (gdb_file_put_ftype) PARAMS ((struct gdb_file *stream, struct gdb_file *dest));
417 extern void set_gdb_file_put PARAMS ((struct gdb_file *stream, gdb_file_put_ftype *put));
419 typedef void (gdb_file_delete_ftype) PARAMS ((struct gdb_file *stream));
420 extern void set_gdb_file_data PARAMS ((struct gdb_file *stream, void *data, gdb_file_delete_ftype *delete));
422 extern struct gdb_file *gdb_file_new PARAMS ((void));
424 extern void gdb_file_delete PARAMS ((struct gdb_file *stream));
426 extern void gdb_file_rewind PARAMS ((struct gdb_file *stream));
428 /* NOTE: copies left to right */
429 extern void gdb_file_put PARAMS ((struct gdb_file *src, struct gdb_file *dest));
431 extern void *gdb_file_data PARAMS ((struct gdb_file *file));
433 /* Open the specified FILE as a gdb_file. */
434 extern struct gdb_file *stdio_fileopen PARAMS ((FILE *));
435 /* #if defined (TUI) */
436 extern struct gdb_file *tui_fileopen PARAMS ((FILE *));
439 /* deprecated - use gdb_file_delete */
440 extern void gdb_fclose PARAMS ((GDB_FILE **));
442 extern void gdb_flush PARAMS ((GDB_FILE *));
444 extern GDB_FILE *gdb_fopen PARAMS ((char * name, char * mode));
446 extern void fputs_filtered PARAMS ((const char *, GDB_FILE *));
448 extern void fputs_unfiltered PARAMS ((const char *, GDB_FILE *));
450 extern int fputc_filtered PARAMS ((int c, GDB_FILE *));
452 extern int fputc_unfiltered PARAMS ((int c, GDB_FILE *));
454 extern int putchar_unfiltered PARAMS ((int c));
456 extern void puts_filtered PARAMS ((const char *));
458 extern void puts_unfiltered PARAMS ((const char *));
460 extern void puts_debug PARAMS ((char *prefix, char *string, char *suffix));
462 extern void vprintf_filtered PARAMS ((const char *, va_list))
463 ATTR_FORMAT(printf, 1, 0);
465 extern void vfprintf_filtered PARAMS ((GDB_FILE *, const char *, va_list))
466 ATTR_FORMAT(printf, 2, 0);
468 extern void fprintf_filtered PARAMS ((GDB_FILE *, const char *, ...))
469 ATTR_FORMAT(printf, 2, 3);
471 extern void fprintfi_filtered PARAMS ((int, GDB_FILE *, const char *, ...))
472 ATTR_FORMAT(printf, 3, 4);
474 extern void printf_filtered PARAMS ((const char *, ...))
475 ATTR_FORMAT(printf, 1, 2);
477 extern void printfi_filtered PARAMS ((int, const char *, ...))
478 ATTR_FORMAT(printf, 2, 3);
480 extern void vprintf_unfiltered PARAMS ((const char *, va_list))
481 ATTR_FORMAT(printf, 1, 0);
483 extern void vfprintf_unfiltered PARAMS ((GDB_FILE *, const char *, va_list))
484 ATTR_FORMAT(printf, 2, 0);
486 extern void fprintf_unfiltered PARAMS ((GDB_FILE *, const char *, ...))
487 ATTR_FORMAT(printf, 2, 3);
489 extern void printf_unfiltered PARAMS ((const char *, ...))
490 ATTR_FORMAT(printf, 1, 2);
492 extern int gdb_file_isatty PARAMS ((GDB_FILE *));
494 /* #if defined (TUI) */
495 extern GDB_FILE *gdb_file_init_astring PARAMS ((int));
498 extern void gdb_file_deallocate PARAMS ((GDB_FILE **));
500 /* #if defined (TUI) */
501 extern char *gdb_file_get_strbuf PARAMS ((GDB_FILE *));
504 /* #if defined (TUI) */
505 extern void gdb_file_adjust_strbuf PARAMS ((int, GDB_FILE *));
508 extern void print_spaces PARAMS ((int, GDB_FILE *));
510 extern void print_spaces_filtered PARAMS ((int, GDB_FILE *));
512 extern char *n_spaces PARAMS ((int));
514 extern void fputstr_filtered PARAMS ((const char *str, int quotr, GDB_FILE *stream));
516 extern void fputstr_unfiltered PARAMS ((const char *str, int quotr, GDB_FILE *stream));
518 extern void fputstrn_unfiltered PARAMS ((const char *str, int n, int quotr, GDB_FILE *stream));
520 extern void gdb_print_address PARAMS ((void *, GDB_FILE *));
522 /* Convert a CORE_ADDR into a HEX string. paddr() is like %08lx.
523 paddr_nz() is like %lx. paddr_u() is like %lu. paddr_width() is
525 extern int strlen_paddr ();
526 extern char* paddr (CORE_ADDR addr);
527 extern char* paddr_nz (CORE_ADDR addr);
528 extern char* paddr_u (CORE_ADDR addr);
529 extern char* paddr_d (LONGEST addr);
531 typedef bfd_vma t_reg;
532 extern char* preg (t_reg reg);
533 extern char* preg_nz (t_reg reg);
535 extern void fprintf_symbol_filtered PARAMS ((GDB_FILE *, char *,
536 enum language, int));
538 extern NORETURN void perror_with_name PARAMS ((char *)) ATTR_NORETURN;
540 extern void print_sys_errmsg PARAMS ((char *, int));
542 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
543 "const char *" in unistd.h, so we can't declare the argument
546 extern char *re_comp PARAMS ((const char *));
550 extern void symbol_file_command PARAMS ((char *, int));
554 extern char *skip_quoted PARAMS ((char *));
556 extern char *gdb_readline PARAMS ((char *));
558 extern char *command_line_input PARAMS ((char *, int, char *));
560 extern void print_prompt PARAMS ((void));
562 extern int input_from_terminal_p PARAMS ((void));
564 extern int info_verbose;
566 /* From printcmd.c */
568 extern void set_next_address PARAMS ((CORE_ADDR));
570 extern void print_address_symbolic PARAMS ((CORE_ADDR, GDB_FILE *, int,
573 extern void print_address_numeric PARAMS ((CORE_ADDR, int, GDB_FILE *));
575 extern void print_address PARAMS ((CORE_ADDR, GDB_FILE *));
579 extern int openp PARAMS ((char *, int, char *, int, int, char **));
581 extern int source_full_path_of PARAMS ((char *, char **));
583 extern void mod_path PARAMS ((char *, char **));
585 extern void directory_command PARAMS ((char *, int));
587 extern void init_source_path PARAMS ((void));
589 extern char *symtab_to_filename PARAMS ((struct symtab *));
593 extern void exec_set_section_offsets (bfd_signed_vma text_off,
594 bfd_signed_vma data_off,
595 bfd_signed_vma bss_off);
599 extern int read_relative_register_raw_bytes PARAMS ((int, char *));
601 /* Possible lvalue types. Like enum language, this should be in
602 value.h, but needs to be here for the same reason. */
608 /* In memory. Could be a saved register. */
612 /* In a gdb internal variable. */
614 /* Part of a gdb internal variable (structure field). */
615 lval_internalvar_component,
616 /* In a register series in a frame not the current one, which may have been
617 partially saved or saved in different places (otherwise would be
618 lval_register or lval_memory). */
619 lval_reg_frame_relative
624 void default_get_saved_register PARAMS ((char *raw_buffer, int *optimized,
626 struct frame_info *frame, int regnum,
627 enum lval_type *lval));
629 /* From readline (but not in any readline .h files). */
631 extern char *tilde_expand PARAMS ((char *));
633 /* Control types for commands */
635 enum misc_command_type
643 enum command_control_type
653 /* Structure for saved commands lines
654 (for breakpoints, defined commands, etc). */
658 struct command_line *next;
660 enum command_control_type control_type;
662 struct command_line **body_list;
665 extern struct command_line *read_command_lines PARAMS ((char *, int));
667 extern void free_command_lines PARAMS ((struct command_line **));
669 /* To continue the execution commands when running gdb asynchronously.
670 A continuation structure contains a pointer to a function to be called
671 to finish the command, once the target has stopped. Such mechanism is
672 used bt the finish and until commands, and in the remote protocol
673 when opening an extended-remote connection. */
675 struct continuation_arg
677 struct continuation_arg *next;
683 void (*continuation_hook) PARAMS ((struct continuation_arg *));
684 struct continuation_arg *arg_list;
685 struct continuation *next;
690 extern struct continuation *cmd_continuation;
693 void add_continuation PARAMS ((void (*) PARAMS ((struct continuation_arg *)),
694 struct continuation_arg *));
695 void do_all_continuations PARAMS ((void));
697 /* String containing the current directory (what getwd would return). */
699 extern char *current_directory;
701 /* Default radixes for input and output. Only some values supported. */
702 extern unsigned input_radix;
703 extern unsigned output_radix;
705 /* Possibilities for prettyprint parameters to routines which print
706 things. Like enum language, this should be in value.h, but needs
707 to be here for the same reason. FIXME: If we can eliminate this
708 as an arg to LA_VAL_PRINT, then we can probably move it back to
713 Val_no_prettyprint = 0,
715 /* Use the default setting which the user has specified. */
720 /* Host machine definition. This will be a symlink to one of the
721 xm-*.h files, built by the `configure' script. */
725 /* Native machine support. This will be a symlink to one of the
726 nm-*.h files, built by the `configure' script. */
730 /* Target machine definition. This will be a symlink to one of the
731 tm-*.h files, built by the `configure' script. */
735 /* If the xm.h file did not define the mode string used to open the
736 files, assume that binary files are opened the same way as text
739 #include "fopen-same.h"
742 /* Microsoft C can't deal with const pointers */
747 #define CONST_PTR const
751 * Allow things in gdb to be declared "volatile". If compiling ANSI, it
752 * just works. If compiling with gcc but non-ansi, redefine to __volatile__.
753 * If non-ansi, non-gcc, then eliminate "volatile" entirely, making those
754 * objects be read-write rather than read-only.
760 # define volatile __volatile__
762 # define volatile /*nothing*/
765 #endif /* volatile */
767 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
768 FIXME: Assumes 2's complement arithmetic */
770 #if !defined (UINT_MAX)
771 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
774 #if !defined (INT_MAX)
775 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
778 #if !defined (INT_MIN)
779 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
782 #if !defined (ULONG_MAX)
783 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
786 #if !defined (LONG_MAX)
787 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
790 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
791 arguments to a function, number in a value history, register number, etc.)
792 where the value must not be larger than can fit in an int. */
794 extern int longest_to_int PARAMS ((LONGEST));
796 /* Assorted functions we can declare, now that const and volatile are
799 extern char *savestring PARAMS ((const char *, int));
801 extern char *msavestring PARAMS ((void *, const char *, int));
803 extern char *strsave PARAMS ((const char *));
805 extern char *mstrsave PARAMS ((void *, const char *));
807 #ifdef _MSC_VER /* FIXME; was long, but this causes compile errors in msvc if already defined */
808 extern PTR xmmalloc PARAMS ((PTR, size_t));
810 extern PTR xmrealloc PARAMS ((PTR, PTR, size_t));
812 extern PTR xmmalloc PARAMS ((PTR, long));
814 extern PTR xmrealloc PARAMS ((PTR, PTR, long));
817 extern int parse_escape PARAMS ((char **));
819 /* Message to be printed before the error message, when an error occurs. */
821 extern char *error_pre_print;
823 /* Message to be printed before the error message, when an error occurs. */
825 extern char *quit_pre_print;
827 /* Message to be printed before the warning message, when a warning occurs. */
829 extern char *warning_pre_print;
831 extern NORETURN void error PARAMS((const char *, ...)) ATTR_NORETURN;
833 extern void error_begin PARAMS ((void));
835 extern NORETURN void internal_error (char *, ...) ATTR_NORETURN;
837 extern NORETURN void nomem PARAMS ((long)) ATTR_NORETURN;
839 /* Reasons for calling return_to_top_level. */
841 /* User interrupt. */
844 /* Any other error. */
848 #define ALL_CLEANUPS ((struct cleanup *)0)
850 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
851 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
852 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
853 typedef int return_mask;
856 return_to_top_level PARAMS ((enum return_reason)) ATTR_NORETURN;
858 typedef int (catch_errors_ftype) PARAMS ((PTR));
859 extern int catch_errors PARAMS ((catch_errors_ftype *, PTR, char *, return_mask));
861 extern void warning_begin PARAMS ((void));
863 extern void warning PARAMS ((const char *, ...))
864 ATTR_FORMAT(printf, 1, 2);
866 /* Global functions from other, non-gdb GNU thingies.
867 Libiberty thingies are no longer declared here. We include libiberty.h
870 #ifndef GETENV_PROVIDED
871 extern char *getenv PARAMS ((const char *));
874 /* From other system libraries */
881 #if defined(_MSC_VER) && !defined(__cplusplus)
882 /* msvc defines these in stdlib.h for c code */
889 #define min(a, b) ((a) < (b) ? (a) : (b))
892 #define max(a, b) ((a) > (b) ? (a) : (b))
896 /* We take the address of fclose later, but some stdio's forget
897 to declare this. We can't always declare it since there's
898 no way to declare the parameters without upsetting some compiler
901 #ifndef FCLOSE_PROVIDED
902 extern int fclose PARAMS ((FILE *));
906 extern double atof PARAMS ((const char *)); /* X3.159-1989 4.10.1.1 */
909 #ifndef MALLOC_INCOMPATIBLE
911 #ifdef NEED_DECLARATION_MALLOC
912 extern PTR malloc ();
915 #ifdef NEED_DECLARATION_REALLOC
916 extern PTR realloc ();
919 #ifdef NEED_DECLARATION_FREE
923 #endif /* MALLOC_INCOMPATIBLE */
925 /* Various possibilities for alloca. */
928 # define alloca __builtin_alloca
929 # else /* Not GNU C */
930 # ifdef HAVE_ALLOCA_H
937 /* We need to be careful not to declare this in a way which conflicts with
938 bison. Bison never declares it as char *, but under various circumstances
939 (like __hpux) we need to use void *. */
940 # if defined (__STDC__) || defined (__hpux)
941 extern void *alloca ();
942 # else /* Don't use void *. */
943 extern char *alloca ();
944 # endif /* Don't use void *. */
945 # endif /* Not _AIX */
946 # endif /* Not HAVE_ALLOCA_H */
947 # endif /* Not GNU C */
948 #endif /* alloca not defined */
950 /* HOST_BYTE_ORDER must be defined to one of these. */
956 #if !defined (BIG_ENDIAN)
957 #define BIG_ENDIAN 4321
960 #if !defined (LITTLE_ENDIAN)
961 #define LITTLE_ENDIAN 1234
964 /* Dynamic target-system-dependent parameters for GDB. */
967 /* Static target-system-dependent parameters for GDB. */
969 /* Number of bits in a char or unsigned char for the target machine.
970 Just like CHAR_BIT in <limits.h> but describes the target machine. */
971 #if !defined (TARGET_CHAR_BIT)
972 #define TARGET_CHAR_BIT 8
975 /* Number of bits in a short or unsigned short for the target machine. */
976 #if !defined (TARGET_SHORT_BIT)
977 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
980 /* Number of bits in an int or unsigned int for the target machine. */
981 #if !defined (TARGET_INT_BIT)
982 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
985 /* Number of bits in a long or unsigned long for the target machine. */
986 #if !defined (TARGET_LONG_BIT)
987 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
990 /* Number of bits in a long long or unsigned long long for the target machine. */
991 #if !defined (TARGET_LONG_LONG_BIT)
992 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
995 /* Number of bits in a float for the target machine. */
996 #if !defined (TARGET_FLOAT_BIT)
997 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
1000 /* Number of bits in a double for the target machine. */
1001 #if !defined (TARGET_DOUBLE_BIT)
1002 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
1005 /* Number of bits in a long double for the target machine. */
1006 #if !defined (TARGET_LONG_DOUBLE_BIT)
1007 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
1010 /* Number of bits in a pointer for the target machine */
1011 #if !defined (TARGET_PTR_BIT)
1012 #define TARGET_PTR_BIT TARGET_INT_BIT
1015 /* If we picked up a copy of CHAR_BIT from a configuration file
1016 (which may get it by including <limits.h>) then use it to set
1017 the number of bits in a host char. If not, use the same size
1020 #if defined (CHAR_BIT)
1021 #define HOST_CHAR_BIT CHAR_BIT
1023 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1026 /* The bit byte-order has to do just with numbering of bits in
1027 debugging symbols and such. Conceptually, it's quite separate
1028 from byte/word byte order. */
1030 #if !defined (BITS_BIG_ENDIAN)
1031 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
1036 extern LONGEST extract_signed_integer PARAMS ((void *, int));
1038 extern ULONGEST extract_unsigned_integer PARAMS ((void *, int));
1040 extern int extract_long_unsigned_integer PARAMS ((void *, int, LONGEST *));
1042 extern CORE_ADDR extract_address PARAMS ((void *, int));
1044 extern void store_signed_integer PARAMS ((PTR, int, LONGEST));
1046 extern void store_unsigned_integer PARAMS ((PTR, int, ULONGEST));
1048 extern void store_address PARAMS ((PTR, int, LONGEST));
1050 /* Setup definitions for host and target floating point formats. We need to
1051 consider the format for `float', `double', and `long double' for both target
1052 and host. We need to do this so that we know what kind of conversions need
1053 to be done when converting target numbers to and from the hosts DOUBLEST
1056 /* This is used to indicate that we don't know the format of the floating point
1057 number. Typically, this is useful for native ports, where the actual format
1058 is irrelevant, since no conversions will be taking place. */
1060 extern const struct floatformat floatformat_unknown;
1062 #if HOST_BYTE_ORDER == BIG_ENDIAN
1063 # ifndef HOST_FLOAT_FORMAT
1064 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
1066 # ifndef HOST_DOUBLE_FORMAT
1067 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
1069 #else /* LITTLE_ENDIAN */
1070 # ifndef HOST_FLOAT_FORMAT
1071 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
1073 # ifndef HOST_DOUBLE_FORMAT
1074 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
1078 #ifndef HOST_LONG_DOUBLE_FORMAT
1079 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
1082 #ifndef TARGET_FLOAT_FORMAT
1083 #define TARGET_FLOAT_FORMAT (TARGET_BYTE_ORDER == BIG_ENDIAN \
1084 ? &floatformat_ieee_single_big \
1085 : &floatformat_ieee_single_little)
1087 #ifndef TARGET_DOUBLE_FORMAT
1088 #define TARGET_DOUBLE_FORMAT (TARGET_BYTE_ORDER == BIG_ENDIAN \
1089 ? &floatformat_ieee_double_big \
1090 : &floatformat_ieee_double_little)
1093 #ifndef TARGET_LONG_DOUBLE_FORMAT
1094 # define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
1097 /* Use `long double' if the host compiler supports it. (Note that this is not
1098 necessarily any longer than `double'. On SunOS/gcc, it's the same as
1099 double.) This is necessary because GDB internally converts all floating
1100 point values to the widest type supported by the host.
1102 There are problems however, when the target `long double' is longer than the
1103 host's `long double'. In general, we'll probably reduce the precision of
1104 any such values and print a warning. */
1106 #ifdef HAVE_LONG_DOUBLE
1107 typedef long double DOUBLEST;
1109 typedef double DOUBLEST;
1112 extern void floatformat_to_doublest PARAMS ((const struct floatformat *,
1113 char *, DOUBLEST *));
1114 extern void floatformat_from_doublest PARAMS ((const struct floatformat *,
1115 DOUBLEST *, char *));
1116 extern DOUBLEST extract_floating PARAMS ((void *, int));
1118 extern void store_floating PARAMS ((void *, int, DOUBLEST));
1120 /* On some machines there are bits in addresses which are not really
1121 part of the address, but are used by the kernel, the hardware, etc.
1122 for special purposes. ADDR_BITS_REMOVE takes out any such bits
1123 so we get a "real" address such as one would find in a symbol
1124 table. This is used only for addresses of instructions, and even then
1125 I'm not sure it's used in all contexts. It exists to deal with there
1126 being a few stray bits in the PC which would mislead us, not as some sort
1127 of generic thing to handle alignment or segmentation (it's possible it
1128 should be in TARGET_READ_PC instead). */
1129 #if !defined (ADDR_BITS_REMOVE)
1130 #define ADDR_BITS_REMOVE(addr) (addr)
1131 #endif /* No ADDR_BITS_REMOVE. */
1135 extern CORE_ADDR push_bytes PARAMS ((CORE_ADDR, char *, int));
1137 extern CORE_ADDR push_word PARAMS ((CORE_ADDR, ULONGEST));
1139 extern int watchdog;
1141 /* Hooks for alternate command interfaces. */
1142 struct target_waitstatus;
1143 struct cmd_list_element;
1145 /* Should the asynchronous variant of the interpreter (using the
1146 event-loop) be enabled? */
1149 extern void (*init_ui_hook) PARAMS ((char *argv0));
1150 extern void (*command_loop_hook) PARAMS ((void));
1151 extern void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer,
1153 extern void (*print_frame_info_listing_hook) PARAMS ((struct symtab *s,
1154 int line, int stopline,
1156 extern struct frame_info *parse_frame_specification PARAMS ((char *frame_exp));
1157 extern int (*query_hook) PARAMS ((const char *, va_list));
1158 extern void (*warning_hook) PARAMS ((const char *, va_list));
1159 extern void (*flush_hook) PARAMS ((GDB_FILE *stream));
1160 extern void (*create_breakpoint_hook) PARAMS ((struct breakpoint *b));
1161 extern void (*delete_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
1162 extern void (*modify_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
1163 extern void (*interactive_hook) PARAMS ((void));
1164 extern void (*registers_changed_hook) PARAMS ((void));
1165 extern void (*readline_begin_hook) PARAMS ((char *, ...));
1166 extern char * (*readline_hook) PARAMS ((char *));
1167 extern void (*readline_end_hook) PARAMS ((void));
1168 extern void (*register_changed_hook) PARAMS ((int regno));
1169 extern void (*memory_changed_hook) PARAMS ((CORE_ADDR addr, int len));
1170 extern void (*context_hook) PARAMS ((int));
1171 extern int (*target_wait_hook) PARAMS ((int pid,
1172 struct target_waitstatus *status));
1174 extern void (*call_command_hook) PARAMS ((struct cmd_list_element *c,
1175 char *cmd, int from_tty));
1177 extern void (*set_hook) PARAMS ((struct cmd_list_element *c));
1179 extern NORETURN void (*error_hook) PARAMS ((void)) ATTR_NORETURN;
1181 extern void (*error_begin_hook) PARAMS ((void));
1184 /* Inhibit window interface if non-zero. */
1186 extern int use_windows;
1188 /* Symbolic definitions of filename-related things. */
1189 /* FIXME, this doesn't work very well if host and executable
1190 filesystems conventions are different. */
1192 #ifndef DIRNAME_SEPARATOR
1193 #define DIRNAME_SEPARATOR ':'
1197 #if defined(__GO32__)||defined(_WIN32)
1198 #define SLASH_P(X) ((X)=='\\')
1200 #define SLASH_P(X) ((X)=='/')
1205 #if defined(__GO32__)||defined(_WIN32)
1206 #define SLASH_CHAR '\\'
1208 #define SLASH_CHAR '/'
1212 #ifndef SLASH_STRING
1213 #if defined(__GO32__)||defined(_WIN32)
1214 #define SLASH_STRING "\\"
1216 #define SLASH_STRING "/"
1221 #define ROOTED_P(X) (SLASH_P((X)[0]))
1224 /* On some systems, PIDGET is defined to extract the inferior pid from
1225 an internal pid that has the thread id and pid in seperate bit
1226 fields. If not defined, then just use the entire internal pid as
1230 #define PIDGET(pid) (pid)
1233 /* If under Cygwin, provide backwards compatibility with older
1234 Cygwin compilers that don't define the current cpp define. */
1241 /* Define well known filenos if the system does not define them. */
1242 #ifndef STDIN_FILENO
1243 #define STDIN_FILENO 0
1245 #ifndef STDOUT_FILENO
1246 #define STDOUT_FILENO 1
1248 #ifndef STDERR_FILENO
1249 #define STDERR_FILENO 2
1252 /* If this definition isn't overridden by the header files, assume
1253 that isatty and fileno exist on this system. */
1255 #define ISATTY(FP) (isatty (fileno (FP)))
1258 #endif /* #ifndef DEFS_H */