1 /* Basic, host-specific, and target-specific definitions for GDB.
2 Copyright (C) 1986, 89, 91, 92, 93, 94, 95, 96, 1998
3 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
24 #include "config.h" /* Generated by configure */
26 #include <errno.h> /* System call error return status */
32 # include <sys/types.h> /* for size_t */
35 /* Just in case they're not defined in stdio.h. */
44 /* First include ansidecl.h so we can use the various macro definitions
45 here and in all subsequent file inclusions. */
49 #ifdef ANSI_PROTOTYPES
55 #include "libiberty.h"
57 /* libiberty.h can't declare this one, but evidently we can. */
58 extern char *strsignal PARAMS ((int));
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 extern int core_addr_lessthan PARAMS ((CORE_ADDR lhs, CORE_ADDR rhs));
78 extern int core_addr_greaterthan PARAMS ((CORE_ADDR lhs, CORE_ADDR rhs));
82 #define min(a, b) ((a) < (b) ? (a) : (b))
85 #define max(a, b) ((a) > (b) ? (a) : (b))
88 /* Gdb does *lots* of string compares. Use macros to speed them up by
89 avoiding function calls if the first characters are not the same. */
91 #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b))
92 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
93 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
95 /* The character GNU C++ uses to build identifiers that must be unique from
96 the program's identifiers (such as $this and $$vptr). */
97 #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
99 /* Check if a character is one of the commonly used C++ marker characters. */
100 extern int is_cplus_marker PARAMS ((int));
102 /* use tui interface if non-zero */
103 extern int tui_version;
106 /* all invocations of TUIDO should have two sets of parens */
107 #define TUIDO(x) tuiDo x
112 /* enable xdb commands if set */
113 extern int xdb_commands;
115 /* enable dbx commands if set */
116 extern int dbx_commands;
118 extern int quit_flag;
119 extern int immediate_quit;
120 extern int sevenbit_strings;
122 extern void quit PARAMS ((void));
125 /* do twice to force compiler warning */
126 #define QUIT_FIXME "FIXME"
127 #define QUIT_FIXME "ignoring redefinition of QUIT"
130 if (quit_flag) quit (); \
131 if (interactive_hook) interactive_hook (); \
136 /* Command classes are top-level categories into which commands are broken
137 down for "help" purposes.
138 Notes on classes: class_alias is for alias commands which are not
139 abbreviations of the original command. class-pseudo is for commands
140 which are not really commands nor help topics ("stop"). */
144 /* Special args to help_list */
145 all_classes = -2, all_commands = -1,
146 /* Classes of commands */
147 no_class = -1, class_run = 0, class_vars, class_stack,
148 class_files, class_support, class_info, class_breakpoint, class_trace,
149 class_alias, class_obscure, class_user, class_maintenance,
150 class_pseudo, class_tui, class_xdb
153 /* Languages represented in the symbol table and elsewhere.
154 This should probably be in language.h, but since enum's can't
155 be forward declared to satisfy opaque references before their
156 actual definition, needs to be here. */
160 language_unknown, /* Language not known */
161 language_auto, /* Placeholder for automatic setting */
163 language_cplus, /* C++ */
164 language_java, /* Java */
165 language_chill, /* Chill */
166 language_fortran, /* Fortran */
167 language_m2, /* Modula-2 */
168 language_asm, /* Assembly language */
169 language_scm /* Scheme / Guile */
176 unspecified_precision
179 /* the cleanup list records things that have to be undone
180 if an error happens (descriptors to be closed, memory to be freed, etc.)
181 Each link in the chain records a function to call and an
184 Use make_cleanup to add an element to the cleanup chain.
185 Use do_cleanups to do all cleanup actions back to a given
186 point in the chain. Use discard_cleanups to remove cleanups
187 from the chain back to a given point, not doing them. */
191 struct cleanup *next;
192 void (*function) PARAMS ((PTR));
197 /* The ability to declare that a function never returns is useful, but
198 not really required to compile GDB successfully, so the NORETURN and
199 ATTR_NORETURN macros normally expand into nothing. */
201 /* If compiling with older versions of GCC, a function may be declared
202 "volatile" to indicate that it does not return. */
205 # if defined(__GNUC__) \
206 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
207 # define NORETURN volatile
209 # define NORETURN /* nothing */
213 /* GCC 2.5 and later versions define a function attribute "noreturn",
214 which is the preferred way to declare that a function never returns.
215 However GCC 2.7 appears to be the first version in which this fully
216 works everywhere we use it. */
218 #ifndef ATTR_NORETURN
219 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 7
220 # define ATTR_NORETURN __attribute__ ((noreturn))
222 # define ATTR_NORETURN /* nothing */
227 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 4 && defined (__ANSI_PROTOTYPES)
228 # define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
230 # define ATTR_FORMAT(type, x, y) /* nothing */
234 /* Needed for various prototypes */
241 /* From blockframe.c */
243 extern int inside_entry_func PARAMS ((CORE_ADDR));
245 extern int inside_entry_file PARAMS ((CORE_ADDR addr));
247 extern int inside_main_func PARAMS ((CORE_ADDR pc));
249 /* From ch-lang.c, for the moment. (FIXME) */
251 extern char *chill_demangle PARAMS ((const char *));
255 extern void initialize_utils PARAMS ((void));
257 extern void notice_quit PARAMS ((void));
259 extern int strcmp_iw PARAMS ((const char *, const char *));
261 extern int subset_compare PARAMS ((char *, char *));
263 extern char *safe_strerror PARAMS ((int));
265 extern char *safe_strsignal PARAMS ((int));
267 extern void init_malloc PARAMS ((void *));
269 extern void request_quit PARAMS ((int));
271 extern void do_cleanups PARAMS ((struct cleanup *));
272 extern void do_final_cleanups PARAMS ((struct cleanup *));
273 extern void do_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
274 extern void do_run_cleanups PARAMS ((struct cleanup *));
276 extern void discard_cleanups PARAMS ((struct cleanup *));
277 extern void discard_final_cleanups PARAMS ((struct cleanup *));
278 extern void discard_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
280 typedef void (*make_cleanup_func) PARAMS ((void *));
282 extern struct cleanup *make_cleanup PARAMS ((make_cleanup_func, void *));
284 extern struct cleanup *make_cleanup_freeargv PARAMS ((char **));
286 extern struct cleanup *make_final_cleanup PARAMS ((make_cleanup_func, void *));
288 extern struct cleanup *make_my_cleanup PARAMS ((struct cleanup **,
289 make_cleanup_func, void *));
291 extern struct cleanup *make_run_cleanup PARAMS ((make_cleanup_func, void *));
293 extern struct cleanup *save_cleanups PARAMS ((void));
294 extern struct cleanup *save_final_cleanups PARAMS ((void));
295 extern struct cleanup *save_my_cleanups PARAMS ((struct cleanup **));
297 extern void restore_cleanups PARAMS ((struct cleanup *));
298 extern void restore_final_cleanups PARAMS ((struct cleanup *));
299 extern void restore_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
301 extern void free_current_contents PARAMS ((char **));
303 extern void null_cleanup PARAMS ((PTR));
305 extern int myread PARAMS ((int, char *, int));
307 extern int query PARAMS((char *, ...))
308 ATTR_FORMAT(printf, 1, 2);
310 #if !defined (USE_MMALLOC)
311 extern PTR mmalloc PARAMS ((PTR, size_t));
312 extern PTR mrealloc PARAMS ((PTR, PTR, size_t));
313 extern void mfree PARAMS ((PTR, PTR));
316 extern void init_page_info PARAMS ((void));
318 /* From demangle.c */
320 extern void set_demangling_style PARAMS ((char *));
325 typedef int (use_struct_convention_fn) PARAMS ((int gcc_p, struct type *value_type));
326 extern use_struct_convention_fn generic_use_struct_convention;
328 typedef unsigned char *(breakpoint_from_pc_fn) PARAMS ((CORE_ADDR *pcptr, int *lenptr));
332 /* Annotation stuff. */
334 extern int annotation_level; /* in stack.c */
336 extern void begin_line PARAMS ((void));
338 extern void wrap_here PARAMS ((char *));
340 extern void reinitialize_more_filter PARAMS ((void));
353 enum streamtype ts_streamtype;
360 typedef struct gdb_file GDB_FILE; /* deprecated */
362 extern GDB_FILE *gdb_stdout;
363 extern GDB_FILE *gdb_stderr;
367 #include "tuiCommand.h"
370 #include "tuiLayout.h"
374 /* Create a new gdb_file with the specified methods. */
376 typedef void (gdb_file_flush_ftype) PARAMS ((struct gdb_file *stream));
377 extern void set_gdb_file_flush PARAMS ((struct gdb_file *stream, gdb_file_flush_ftype *flush));
379 typedef void (gdb_file_fputs_ftype) PARAMS ((const char *, struct gdb_file *stream));
380 extern void set_gdb_file_fputs PARAMS ((struct gdb_file *stream, gdb_file_fputs_ftype *fputs));
382 typedef int (gdb_file_isatty_ftype) PARAMS ((struct gdb_file *stream));
383 extern void set_gdb_file_isatty PARAMS ((struct gdb_file *stream, gdb_file_isatty_ftype *isatty));
385 typedef void (gdb_file_delete_ftype) PARAMS ((struct gdb_file *stream));
386 extern void set_gdb_file_data PARAMS ((struct gdb_file *stream, void *data, gdb_file_delete_ftype *delete));
388 extern struct gdb_file *gdb_file_new PARAMS ((void));
390 extern void gdb_file_delete PARAMS ((struct gdb_file *stream));
392 extern void *gdb_file_data PARAMS ((struct gdb_file *file));
394 /* Open the specified FILE as a gdb_file. */
395 extern struct gdb_file *stdio_fileopen PARAMS ((FILE *));
396 /* #if defined (TUI) */
397 extern struct gdb_file *tui_fileopen PARAMS ((FILE *));
400 /* deprecated - use gdb_file_delete */
401 extern void gdb_fclose PARAMS ((GDB_FILE **));
403 extern void gdb_flush PARAMS ((GDB_FILE *));
405 extern GDB_FILE *gdb_fopen PARAMS ((char * name, char * mode));
407 extern void fputs_filtered PARAMS ((const char *, GDB_FILE *));
409 extern void fputs_unfiltered PARAMS ((const char *, GDB_FILE *));
411 extern int fputc_filtered PARAMS ((int c, GDB_FILE *));
413 extern int fputc_unfiltered PARAMS ((int c, GDB_FILE *));
415 extern int putchar_unfiltered PARAMS ((int c));
417 extern void puts_filtered PARAMS ((const char *));
419 extern void puts_unfiltered PARAMS ((const char *));
421 extern void puts_debug PARAMS ((char *prefix, char *string, char *suffix));
423 extern void vprintf_filtered PARAMS ((const char *, va_list))
424 ATTR_FORMAT(printf, 1, 0);
426 extern void vfprintf_filtered PARAMS ((GDB_FILE *, const char *, va_list))
427 ATTR_FORMAT(printf, 2, 0);
429 extern void fprintf_filtered PARAMS ((GDB_FILE *, const char *, ...))
430 ATTR_FORMAT(printf, 2, 3);
432 extern void fprintfi_filtered PARAMS ((int, GDB_FILE *, const char *, ...))
433 ATTR_FORMAT(printf, 3, 4);
435 extern void printf_filtered PARAMS ((const char *, ...))
436 ATTR_FORMAT(printf, 1, 2);
438 extern void printfi_filtered PARAMS ((int, const char *, ...))
439 ATTR_FORMAT(printf, 2, 3);
441 extern void vprintf_unfiltered PARAMS ((const char *, va_list))
442 ATTR_FORMAT(printf, 1, 0);
444 extern void vfprintf_unfiltered PARAMS ((GDB_FILE *, const char *, va_list))
445 ATTR_FORMAT(printf, 2, 0);
447 extern void fprintf_unfiltered PARAMS ((GDB_FILE *, const char *, ...))
448 ATTR_FORMAT(printf, 2, 3);
450 extern void printf_unfiltered PARAMS ((const char *, ...))
451 ATTR_FORMAT(printf, 1, 2);
453 extern int gdb_file_isatty PARAMS ((GDB_FILE *));
455 /* #if defined (TUI) */
456 extern GDB_FILE *gdb_file_init_astring PARAMS ((int));
459 extern void gdb_file_deallocate PARAMS ((GDB_FILE **));
461 /* #if defined (TUI) */
462 extern char *gdb_file_get_strbuf PARAMS ((GDB_FILE *));
465 /* #if defined (TUI) */
466 extern void gdb_file_adjust_strbuf PARAMS ((int, GDB_FILE *));
469 extern void print_spaces PARAMS ((int, GDB_FILE *));
471 extern void print_spaces_filtered PARAMS ((int, GDB_FILE *));
473 extern char *n_spaces PARAMS ((int));
475 extern void gdb_printchar PARAMS ((int, GDB_FILE *, int));
477 extern void gdb_print_address PARAMS ((void *, GDB_FILE *));
479 typedef bfd_vma t_addr;
480 typedef bfd_vma t_reg;
481 extern char* paddr PARAMS ((t_addr addr));
483 extern char* preg PARAMS ((t_reg reg));
485 extern char* paddr_nz PARAMS ((t_addr addr));
487 extern char* preg_nz PARAMS ((t_reg reg));
489 extern void fprintf_symbol_filtered PARAMS ((GDB_FILE *, char *,
490 enum language, int));
492 extern NORETURN void perror_with_name PARAMS ((char *)) ATTR_NORETURN;
494 extern void print_sys_errmsg PARAMS ((char *, int));
496 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
497 "const char *" in unistd.h, so we can't declare the argument
500 extern char *re_comp PARAMS ((const char *));
504 extern void symbol_file_command PARAMS ((char *, int));
508 extern char *skip_quoted PARAMS ((char *));
510 extern char *gdb_readline PARAMS ((char *));
512 extern char *command_line_input PARAMS ((char *, int, char *));
514 extern void print_prompt PARAMS ((void));
516 extern int input_from_terminal_p PARAMS ((void));
518 extern int info_verbose;
520 /* From printcmd.c */
522 extern void set_next_address PARAMS ((CORE_ADDR));
524 extern void print_address_symbolic PARAMS ((CORE_ADDR, GDB_FILE *, int,
527 extern void print_address_numeric PARAMS ((CORE_ADDR, int, GDB_FILE *));
529 extern void print_address PARAMS ((CORE_ADDR, GDB_FILE *));
533 extern int openp PARAMS ((char *, int, char *, int, int, char **));
535 extern int source_full_path_of PARAMS ((char *, char **));
537 extern void mod_path PARAMS ((char *, char **));
539 extern void directory_command PARAMS ((char *, int));
541 extern void init_source_path PARAMS ((void));
543 extern char *symtab_to_filename PARAMS ((struct symtab *));
547 extern int read_relative_register_raw_bytes PARAMS ((int, char *));
553 void default_get_saved_register PARAMS ((char *raw_buffer, int *optimized,
555 struct frame_info *frame, int regnum,
556 enum lval_type *lval));
558 /* From readline (but not in any readline .h files). */
560 extern char *tilde_expand PARAMS ((char *));
562 /* Control types for commands */
564 enum misc_command_type
572 enum command_control_type
582 /* Structure for saved commands lines
583 (for breakpoints, defined commands, etc). */
587 struct command_line *next;
589 enum command_control_type control_type;
591 struct command_line **body_list;
594 extern struct command_line *read_command_lines PARAMS ((char *, int));
596 extern void free_command_lines PARAMS ((struct command_line **));
598 /* String containing the current directory (what getwd would return). */
600 extern char *current_directory;
602 /* Default radixes for input and output. Only some values supported. */
603 extern unsigned input_radix;
604 extern unsigned output_radix;
606 /* Possibilities for prettyprint parameters to routines which print
607 things. Like enum language, this should be in value.h, but needs
608 to be here for the same reason. FIXME: If we can eliminate this
609 as an arg to LA_VAL_PRINT, then we can probably move it back to
614 Val_no_prettyprint = 0,
616 /* Use the default setting which the user has specified. */
621 /* Host machine definition. This will be a symlink to one of the
622 xm-*.h files, built by the `configure' script. */
626 /* Native machine support. This will be a symlink to one of the
627 nm-*.h files, built by the `configure' script. */
631 /* Target machine definition. This will be a symlink to one of the
632 tm-*.h files, built by the `configure' script. */
636 /* If the xm.h file did not define the mode string used to open the
637 files, assume that binary files are opened the same way as text
640 #include "fopen-same.h"
643 /* Microsoft C can't deal with const pointers */
648 #define CONST_PTR const
652 * Allow things in gdb to be declared "volatile". If compiling ANSI, it
653 * just works. If compiling with gcc but non-ansi, redefine to __volatile__.
654 * If non-ansi, non-gcc, then eliminate "volatile" entirely, making those
655 * objects be read-write rather than read-only.
661 # define volatile __volatile__
663 # define volatile /*nothing*/
666 #endif /* volatile */
668 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
669 FIXME: Assumes 2's complement arithmetic */
671 #if !defined (UINT_MAX)
672 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
675 #if !defined (INT_MAX)
676 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
679 #if !defined (INT_MIN)
680 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
683 #if !defined (ULONG_MAX)
684 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
687 #if !defined (LONG_MAX)
688 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
695 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
697 #define LONGEST BFD_HOST_64_BIT
698 #define ULONGEST BFD_HOST_U_64_BIT
702 # ifdef CC_HAS_LONG_LONG
703 # define LONGEST long long
704 # define ULONGEST unsigned long long
706 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
707 (e.g. i386-windows) so try it. */
708 # ifdef BFD_HOST_64_BIT
709 # define LONGEST BFD_HOST_64_BIT
710 # define ULONGEST BFD_HOST_U_64_BIT
712 # define LONGEST long
713 # define ULONGEST unsigned long
717 #endif /* No BFD64 */
719 #endif /* ! LONGEST */
721 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
722 arguments to a function, number in a value history, register number, etc.)
723 where the value must not be larger than can fit in an int. */
725 extern int longest_to_int PARAMS ((LONGEST));
727 /* Assorted functions we can declare, now that const and volatile are
730 extern char *savestring PARAMS ((const char *, int));
732 extern char *msavestring PARAMS ((void *, const char *, int));
734 extern char *strsave PARAMS ((const char *));
736 extern char *mstrsave PARAMS ((void *, const char *));
738 #ifdef _MSC_VER /* FIXME; was long, but this causes compile errors in msvc if already defined */
739 extern PTR xmmalloc PARAMS ((PTR, size_t));
741 extern PTR xmrealloc PARAMS ((PTR, PTR, size_t));
743 extern PTR xmmalloc PARAMS ((PTR, long));
745 extern PTR xmrealloc PARAMS ((PTR, PTR, long));
748 extern int parse_escape PARAMS ((char **));
750 /* compat - handle old targets that just define REGISTER_NAMES */
751 #ifndef REGISTER_NAME
752 extern char *gdb_register_names[];
753 #define REGISTER_NAME(i) gdb_register_names[i]
756 /* Message to be printed before the error message, when an error occurs. */
758 extern char *error_pre_print;
760 /* Message to be printed before the error message, when an error occurs. */
762 extern char *quit_pre_print;
764 /* Message to be printed before the warning message, when a warning occurs. */
766 extern char *warning_pre_print;
768 extern NORETURN void error PARAMS((const char *, ...)) ATTR_NORETURN;
770 extern void error_begin PARAMS ((void));
772 extern NORETURN void fatal PARAMS((char *, ...)) ATTR_NORETURN;
774 extern NORETURN void nomem PARAMS ((long)) ATTR_NORETURN;
776 /* Reasons for calling return_to_top_level. */
778 /* User interrupt. */
781 /* Any other error. */
785 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
786 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
787 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
788 typedef int return_mask;
791 return_to_top_level PARAMS ((enum return_reason)) ATTR_NORETURN;
793 typedef int (catch_errors_ftype) PARAMS ((PTR));
794 extern int catch_errors PARAMS ((catch_errors_ftype *, PTR, char *, return_mask));
796 extern void warning_begin PARAMS ((void));
798 extern void warning PARAMS ((const char *, ...))
799 ATTR_FORMAT(printf, 1, 2);
801 /* Global functions from other, non-gdb GNU thingies.
802 Libiberty thingies are no longer declared here. We include libiberty.h
805 #ifndef GETENV_PROVIDED
806 extern char *getenv PARAMS ((const char *));
809 /* From other system libraries */
816 #if defined(_MSC_VER) && !defined(__cplusplus)
817 /* msvc defines these in stdlib.h for c code */
824 #define min(a, b) ((a) < (b) ? (a) : (b))
827 #define max(a, b) ((a) > (b) ? (a) : (b))
831 /* We take the address of fclose later, but some stdio's forget
832 to declare this. We can't always declare it since there's
833 no way to declare the parameters without upsetting some compiler
836 #ifndef FCLOSE_PROVIDED
837 extern int fclose PARAMS ((FILE *));
841 extern double atof PARAMS ((const char *)); /* X3.159-1989 4.10.1.1 */
844 #ifndef MALLOC_INCOMPATIBLE
846 #ifdef NEED_DECLARATION_MALLOC
847 extern PTR malloc ();
850 #ifdef NEED_DECLARATION_REALLOC
851 extern PTR realloc ();
854 #ifdef NEED_DECLARATION_FREE
858 #endif /* MALLOC_INCOMPATIBLE */
860 /* Various possibilities for alloca. */
863 # define alloca __builtin_alloca
864 # else /* Not GNU C */
865 # ifdef HAVE_ALLOCA_H
872 /* We need to be careful not to declare this in a way which conflicts with
873 bison. Bison never declares it as char *, but under various circumstances
874 (like __hpux) we need to use void *. */
875 # if defined (__STDC__) || defined (__hpux)
876 extern void *alloca ();
877 # else /* Don't use void *. */
878 extern char *alloca ();
879 # endif /* Don't use void *. */
880 # endif /* Not _AIX */
881 # endif /* Not HAVE_ALLOCA_H */
882 # endif /* Not GNU C */
883 #endif /* alloca not defined */
885 /* HOST_BYTE_ORDER must be defined to one of these. */
891 #if !defined (BIG_ENDIAN)
892 #define BIG_ENDIAN 4321
895 #if !defined (LITTLE_ENDIAN)
896 #define LITTLE_ENDIAN 1234
899 /* Dynamic target-system-dependent parameters for GDB. */
902 /* Static target-system-dependent parameters for GDB. */
904 /* Number of bits in a char or unsigned char for the target machine.
905 Just like CHAR_BIT in <limits.h> but describes the target machine. */
906 #if !defined (TARGET_CHAR_BIT)
907 #define TARGET_CHAR_BIT 8
910 /* Number of bits in a short or unsigned short for the target machine. */
911 #if !defined (TARGET_SHORT_BIT)
912 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
915 /* Number of bits in an int or unsigned int for the target machine. */
916 #if !defined (TARGET_INT_BIT)
917 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
920 /* Number of bits in a long or unsigned long for the target machine. */
921 #if !defined (TARGET_LONG_BIT)
922 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
925 /* Number of bits in a long long or unsigned long long for the target machine. */
926 #if !defined (TARGET_LONG_LONG_BIT)
927 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
930 /* Number of bits in a float for the target machine. */
931 #if !defined (TARGET_FLOAT_BIT)
932 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
935 /* Number of bits in a double for the target machine. */
936 #if !defined (TARGET_DOUBLE_BIT)
937 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
940 /* Number of bits in a long double for the target machine. */
941 #if !defined (TARGET_LONG_DOUBLE_BIT)
942 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
945 /* Number of bits in a pointer for the target machine */
946 #if !defined (TARGET_PTR_BIT)
947 #define TARGET_PTR_BIT TARGET_INT_BIT
950 /* If we picked up a copy of CHAR_BIT from a configuration file
951 (which may get it by including <limits.h>) then use it to set
952 the number of bits in a host char. If not, use the same size
955 #if defined (CHAR_BIT)
956 #define HOST_CHAR_BIT CHAR_BIT
958 #define HOST_CHAR_BIT TARGET_CHAR_BIT
961 /* The bit byte-order has to do just with numbering of bits in
962 debugging symbols and such. Conceptually, it's quite separate
963 from byte/word byte order. */
965 #if !defined (BITS_BIG_ENDIAN)
966 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
971 extern LONGEST extract_signed_integer PARAMS ((void *, int));
973 extern ULONGEST extract_unsigned_integer PARAMS ((void *, int));
975 extern int extract_long_unsigned_integer PARAMS ((void *, int, LONGEST *));
977 extern CORE_ADDR extract_address PARAMS ((void *, int));
979 extern void store_signed_integer PARAMS ((PTR, int, LONGEST));
981 extern void store_unsigned_integer PARAMS ((PTR, int, ULONGEST));
983 extern void store_address PARAMS ((PTR, int, LONGEST));
985 /* Setup definitions for host and target floating point formats. We need to
986 consider the format for `float', `double', and `long double' for both target
987 and host. We need to do this so that we know what kind of conversions need
988 to be done when converting target numbers to and from the hosts DOUBLEST
991 /* This is used to indicate that we don't know the format of the floating point
992 number. Typically, this is useful for native ports, where the actual format
993 is irrelevant, since no conversions will be taking place. */
995 extern const struct floatformat floatformat_unknown;
997 #if HOST_BYTE_ORDER == BIG_ENDIAN
998 # ifndef HOST_FLOAT_FORMAT
999 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
1001 # ifndef HOST_DOUBLE_FORMAT
1002 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
1004 #else /* LITTLE_ENDIAN */
1005 # ifndef HOST_FLOAT_FORMAT
1006 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
1008 # ifndef HOST_DOUBLE_FORMAT
1009 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
1013 #ifndef HOST_LONG_DOUBLE_FORMAT
1014 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
1017 #ifndef TARGET_FLOAT_FORMAT
1018 #define TARGET_FLOAT_FORMAT (TARGET_BYTE_ORDER == BIG_ENDIAN \
1019 ? &floatformat_ieee_single_big \
1020 : &floatformat_ieee_single_little)
1022 #ifndef TARGET_DOUBLE_FORMAT
1023 #define TARGET_DOUBLE_FORMAT (TARGET_BYTE_ORDER == BIG_ENDIAN \
1024 ? &floatformat_ieee_double_big \
1025 : &floatformat_ieee_double_little)
1028 #ifndef TARGET_LONG_DOUBLE_FORMAT
1029 # define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
1032 /* Use `long double' if the host compiler supports it. (Note that this is not
1033 necessarily any longer than `double'. On SunOS/gcc, it's the same as
1034 double.) This is necessary because GDB internally converts all floating
1035 point values to the widest type supported by the host.
1037 There are problems however, when the target `long double' is longer than the
1038 host's `long double'. In general, we'll probably reduce the precision of
1039 any such values and print a warning. */
1041 #ifdef HAVE_LONG_DOUBLE
1042 typedef long double DOUBLEST;
1044 typedef double DOUBLEST;
1047 extern void floatformat_to_doublest PARAMS ((const struct floatformat *,
1048 char *, DOUBLEST *));
1049 extern void floatformat_from_doublest PARAMS ((const struct floatformat *,
1050 DOUBLEST *, char *));
1051 extern DOUBLEST extract_floating PARAMS ((void *, int));
1053 extern void store_floating PARAMS ((void *, int, DOUBLEST));
1055 /* On some machines there are bits in addresses which are not really
1056 part of the address, but are used by the kernel, the hardware, etc.
1057 for special purposes. ADDR_BITS_REMOVE takes out any such bits
1058 so we get a "real" address such as one would find in a symbol
1059 table. This is used only for addresses of instructions, and even then
1060 I'm not sure it's used in all contexts. It exists to deal with there
1061 being a few stray bits in the PC which would mislead us, not as some sort
1062 of generic thing to handle alignment or segmentation (it's possible it
1063 should be in TARGET_READ_PC instead). */
1064 #if !defined (ADDR_BITS_REMOVE)
1065 #define ADDR_BITS_REMOVE(addr) (addr)
1066 #endif /* No ADDR_BITS_REMOVE. */
1070 extern CORE_ADDR push_bytes PARAMS ((CORE_ADDR, char *, int));
1072 extern CORE_ADDR push_word PARAMS ((CORE_ADDR, ULONGEST));
1074 extern int watchdog;
1076 /* Hooks for alternate command interfaces. */
1079 struct target_waitstatus;
1080 struct cmd_list_element;
1083 extern void (*async_hook) PARAMS ((void));
1084 extern void (*init_ui_hook) PARAMS ((char *argv0));
1085 extern void (*command_loop_hook) PARAMS ((void));
1086 extern void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer,
1088 extern void (*print_frame_info_listing_hook) PARAMS ((struct symtab *s,
1089 int line, int stopline,
1091 extern struct frame_info *parse_frame_specification PARAMS ((char *frame_exp));
1092 extern int (*query_hook) PARAMS ((const char *, va_list));
1093 extern void (*warning_hook) PARAMS ((const char *, va_list));
1094 extern void (*flush_hook) PARAMS ((GDB_FILE *stream));
1095 extern void (*create_breakpoint_hook) PARAMS ((struct breakpoint *b));
1096 extern void (*delete_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
1097 extern void (*modify_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
1098 extern void (*target_output_hook) PARAMS ((char *));
1099 extern void (*interactive_hook) PARAMS ((void));
1100 extern void (*registers_changed_hook) PARAMS ((void));
1101 extern void (*readline_begin_hook) PARAMS ((char *, ...));
1102 extern char * (*readline_hook) PARAMS ((char *));
1103 extern void (*readline_end_hook) PARAMS ((void));
1104 extern void (*register_changed_hook) PARAMS ((int regno));
1105 extern void (*memory_changed_hook) PARAMS ((CORE_ADDR addr, int len));
1106 extern void (*context_hook) PARAMS ((int));
1107 extern int (*target_wait_hook) PARAMS ((int pid,
1108 struct target_waitstatus *status));
1110 extern void (*call_command_hook) PARAMS ((struct cmd_list_element *c,
1111 char *cmd, int from_tty));
1113 extern NORETURN void (*error_hook) PARAMS ((void)) ATTR_NORETURN;
1115 extern void (*error_begin_hook) PARAMS ((void));
1118 /* Inhibit window interface if non-zero. */
1120 extern int use_windows;
1122 /* Symbolic definitions of filename-related things. */
1123 /* FIXME, this doesn't work very well if host and executable
1124 filesystems conventions are different. */
1126 #ifndef DIRNAME_SEPARATOR
1127 #define DIRNAME_SEPARATOR ':'
1131 #if defined(__GO32__)||defined(_WIN32)
1132 #define SLASH_P(X) ((X)=='\\')
1134 #define SLASH_P(X) ((X)=='/')
1139 #if defined(__GO32__)||defined(_WIN32)
1140 #define SLASH_CHAR '\\'
1142 #define SLASH_CHAR '/'
1146 #ifndef SLASH_STRING
1147 #if defined(__GO32__)||defined(_WIN32)
1148 #define SLASH_STRING "\\"
1150 #define SLASH_STRING "/"
1155 #define ROOTED_P(X) (SLASH_P((X)[0]))
1158 /* On some systems, PIDGET is defined to extract the inferior pid from
1159 an internal pid that has the thread id and pid in seperate bit
1160 fields. If not defined, then just use the entire internal pid as
1164 #define PIDGET(pid) (pid)
1167 /* If under Cygwin, provide backwards compatibility with older
1168 Cygwin compilers that don't define the current cpp define. */
1175 #endif /* #ifndef DEFS_H */