1 /* Basic, host-specific, and target-specific definitions for GDB.
2 Copyright (C) 1986, 1989, 1991, 1992, 1993, 1994, 1995, 1996
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 */
28 /* Just in case they're not defined in stdio.h. */
37 /* First include ansidecl.h so we can use the various macro definitions
38 here and in all subsequent file inclusions. */
42 #ifdef ANSI_PROTOTYPES
48 #include "libiberty.h"
50 /* libiberty.h can't declare this one, but evidently we can. */
51 extern char *strsignal PARAMS ((int));
59 /* For BFD64 and bfd_vma. */
62 /* An address in the program being debugged. Host byte order. Rather
63 than duplicate all the logic in BFD which figures out what type
64 this is (long, long long, etc.) and whether it needs to be 64
65 bits (the host/target interactions are subtle), we just use
68 typedef bfd_vma CORE_ADDR;
71 #define min(a, b) ((a) < (b) ? (a) : (b))
74 #define max(a, b) ((a) > (b) ? (a) : (b))
77 /* Gdb does *lots* of string compares. Use macros to speed them up by
78 avoiding function calls if the first characters are not the same. */
80 #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b))
81 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
82 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
84 /* The character GNU C++ uses to build identifiers that must be unique from
85 the program's identifiers (such as $this and $$vptr). */
86 #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
88 /* Check if a character is one of the commonly used C++ marker characters. */
89 extern int is_cplus_marker PARAMS ((int));
92 extern int immediate_quit;
93 extern int sevenbit_strings;
95 extern void quit PARAMS ((void));
98 /* do twice to force compiler warning */
99 #define QUIT_FIXME "FIXME"
100 #define QUIT_FIXME "ignoring redefinition of QUIT"
103 if (quit_flag) quit (); \
104 if (interactive_hook) interactive_hook (); \
109 /* Command classes are top-level categories into which commands are broken
110 down for "help" purposes.
111 Notes on classes: class_alias is for alias commands which are not
112 abbreviations of the original command. class-pseudo is for commands
113 which are not really commands nor help topics ("stop"). */
117 /* Special args to help_list */
118 all_classes = -2, all_commands = -1,
119 /* Classes of commands */
120 no_class = -1, class_run = 0, class_vars, class_stack,
121 class_files, class_support, class_info, class_breakpoint,
122 class_alias, class_obscure, class_user, class_maintenance,
126 /* Languages represented in the symbol table and elsewhere.
127 This should probably be in language.h, but since enum's can't
128 be forward declared to satisfy opaque references before their
129 actual definition, needs to be here. */
133 language_unknown, /* Language not known */
134 language_auto, /* Placeholder for automatic setting */
136 language_cplus, /* C++ */
137 language_chill, /* Chill */
138 language_fortran, /* Fortran */
139 language_m2, /* Modula-2 */
140 language_asm, /* Assembly language */
141 language_scm /* Scheme / Guile */
144 /* the cleanup list records things that have to be undone
145 if an error happens (descriptors to be closed, memory to be freed, etc.)
146 Each link in the chain records a function to call and an
149 Use make_cleanup to add an element to the cleanup chain.
150 Use do_cleanups to do all cleanup actions back to a given
151 point in the chain. Use discard_cleanups to remove cleanups
152 from the chain back to a given point, not doing them. */
156 struct cleanup *next;
157 void (*function) PARAMS ((PTR));
162 /* The ability to declare that a function never returns is useful, but
163 not really required to compile GDB successfully, so the NORETURN and
164 ATTR_NORETURN macros normally expand into nothing. */
166 /* If compiling with older versions of GCC, a function may be declared
167 "volatile" to indicate that it does not return. */
170 # if defined(__GNUC__) \
171 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
172 # define NORETURN volatile
174 # define NORETURN /* nothing */
178 /* GCC 2.5 and later versions define a function attribute "noreturn",
179 which is the preferred way to declare that a function never returns.
180 However GCC 2.7 appears to be the first version in which this fully
181 works everywhere we use it. */
183 #ifndef ATTR_NORETURN
184 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 7
185 # define ATTR_NORETURN __attribute__ ((noreturn))
187 # define ATTR_NORETURN /* nothing */
192 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 4 && defined (__ANSI_PROTOTYPES)
193 # define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
195 # define ATTR_FORMAT(type, x, y) /* nothing */
199 /* Needed for various prototypes */
206 /* From blockframe.c */
208 extern int inside_entry_func PARAMS ((CORE_ADDR));
210 extern int inside_entry_file PARAMS ((CORE_ADDR addr));
212 extern int inside_main_func PARAMS ((CORE_ADDR pc));
214 /* From ch-lang.c, for the moment. (FIXME) */
216 extern char *chill_demangle PARAMS ((const char *));
220 extern void notice_quit PARAMS ((void));
222 extern int strcmp_iw PARAMS ((const char *, const char *));
224 extern char *safe_strerror PARAMS ((int));
226 extern char *safe_strsignal PARAMS ((int));
228 extern void init_malloc PARAMS ((void *));
230 extern void request_quit PARAMS ((int));
232 extern void do_cleanups PARAMS ((struct cleanup *));
233 extern void do_final_cleanups PARAMS ((struct cleanup *));
234 extern void do_my_cleanups PARAMS ((struct cleanup *, struct cleanup *));
236 extern void discard_cleanups PARAMS ((struct cleanup *));
237 extern void discard_final_cleanups PARAMS ((struct cleanup *));
238 extern void discard_my_cleanups PARAMS ((struct cleanup *, struct cleanup *));
240 /* The bare make_cleanup function is one of those rare beasts that
241 takes almost any type of function as the first arg and anything that
242 will fit in a "void *" as the second arg.
244 Should be, once all calls and called-functions are cleaned up:
245 extern struct cleanup *
246 make_cleanup PARAMS ((void (*function) (void *), void *));
248 Until then, lint and/or various type-checking compiler options will
249 complain about make_cleanup calls. It'd be wrong to just cast things,
250 since the type actually passed when the function is called would be
253 extern struct cleanup *make_cleanup ();
254 extern struct cleanup *
255 make_final_cleanup PARAMS ((void (*function) (void *), void *));
256 extern struct cleanup *
257 make_my_cleanup PARAMS ((struct cleanup *, void (*function) (void *), void *));
259 extern struct cleanup *save_cleanups PARAMS ((void));
260 extern struct cleanup *save_final_cleanups PARAMS ((void));
261 extern struct cleanup *save_my_cleanups PARAMS ((struct cleanup *));
263 extern void restore_cleanups PARAMS ((struct cleanup *));
264 extern void restore_final_cleanups PARAMS ((struct cleanup *));
265 extern void restore_my_cleanups PARAMS ((struct cleanup *, struct cleanup *));
267 extern void free_current_contents PARAMS ((char **));
269 extern void null_cleanup PARAMS ((PTR));
271 extern int myread PARAMS ((int, char *, int));
273 extern int query PARAMS((char *, ...))
274 ATTR_FORMAT(printf, 1, 2);
276 /* From demangle.c */
278 extern void set_demangling_style PARAMS ((char *));
281 /* Annotation stuff. */
283 extern int annotation_level; /* in stack.c */
285 extern void begin_line PARAMS ((void));
287 extern void wrap_here PARAMS ((char *));
289 extern void reinitialize_more_filter PARAMS ((void));
291 typedef FILE GDB_FILE;
292 #define gdb_stdout stdout
293 #define gdb_stderr stderr
295 extern void gdb_flush PARAMS ((GDB_FILE *));
297 extern GDB_FILE *gdb_fopen PARAMS ((char * name, char * mode));
299 extern void fputs_filtered PARAMS ((const char *, GDB_FILE *));
301 extern void fputs_unfiltered PARAMS ((const char *, GDB_FILE *));
303 extern int fputc_unfiltered PARAMS ((int c, GDB_FILE *));
305 extern int putchar_unfiltered PARAMS ((int c));
307 extern void puts_filtered PARAMS ((const char *));
309 extern void puts_unfiltered PARAMS ((const char *));
311 extern void vprintf_filtered PARAMS ((const char *, va_list))
312 ATTR_FORMAT(printf, 1, 0);
314 extern void vfprintf_filtered PARAMS ((FILE *, const char *, va_list))
315 ATTR_FORMAT(printf, 2, 0);
317 extern void fprintf_filtered PARAMS ((FILE *, const char *, ...))
318 ATTR_FORMAT(printf, 2, 3);
320 extern void fprintfi_filtered PARAMS ((int, FILE *, const char *, ...))
321 ATTR_FORMAT(printf, 3, 4);
323 extern void printf_filtered PARAMS ((const char *, ...))
324 ATTR_FORMAT(printf, 1, 2);
326 extern void printfi_filtered PARAMS ((int, const char *, ...))
327 ATTR_FORMAT(printf, 2, 3);
329 extern void vprintf_unfiltered PARAMS ((const char *, va_list))
330 ATTR_FORMAT(printf, 1, 0);
332 extern void vfprintf_unfiltered PARAMS ((FILE *, const char *, va_list))
333 ATTR_FORMAT(printf, 2, 0);
335 extern void fprintf_unfiltered PARAMS ((FILE *, const char *, ...))
336 ATTR_FORMAT(printf, 2, 3);
338 extern void printf_unfiltered PARAMS ((const char *, ...))
339 ATTR_FORMAT(printf, 1, 2);
341 extern void print_spaces PARAMS ((int, GDB_FILE *));
343 extern void print_spaces_filtered PARAMS ((int, GDB_FILE *));
345 extern char *n_spaces PARAMS ((int));
347 extern void gdb_printchar PARAMS ((int, GDB_FILE *, int));
349 extern void gdb_print_address PARAMS ((void *, GDB_FILE *));
351 typedef bfd_vma t_addr;
352 typedef bfd_vma t_reg;
353 extern char* paddr PARAMS ((t_addr addr));
355 extern char* preg PARAMS ((t_reg reg));
357 extern char* paddr_nz PARAMS ((t_addr addr));
359 extern char* preg_nz PARAMS ((t_reg reg));
361 extern void fprintf_symbol_filtered PARAMS ((GDB_FILE *, char *,
362 enum language, int));
364 extern void perror_with_name PARAMS ((char *));
366 extern void print_sys_errmsg PARAMS ((char *, int));
368 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
369 "const char *" in unistd.h, so we can't declare the argument
372 extern char *re_comp PARAMS ((const char *));
376 extern void symbol_file_command PARAMS ((char *, int));
380 extern char *skip_quoted PARAMS ((char *));
382 extern char *gdb_readline PARAMS ((char *));
384 extern char *command_line_input PARAMS ((char *, int, char *));
386 extern void print_prompt PARAMS ((void));
388 extern int input_from_terminal_p PARAMS ((void));
390 extern int info_verbose;
392 /* From printcmd.c */
394 extern void set_next_address PARAMS ((CORE_ADDR));
396 extern void print_address_symbolic PARAMS ((CORE_ADDR, GDB_FILE *, int,
399 extern void print_address_numeric PARAMS ((CORE_ADDR, int, GDB_FILE *));
401 extern void print_address PARAMS ((CORE_ADDR, GDB_FILE *));
405 extern int openp PARAMS ((char *, int, char *, int, int, char **));
407 extern void mod_path PARAMS ((char *, char **));
409 extern void directory_command PARAMS ((char *, int));
411 extern void init_source_path PARAMS ((void));
413 extern char *symtab_to_filename PARAMS ((struct symtab *));
417 extern int read_relative_register_raw_bytes PARAMS ((int, char *));
419 /* From readline (but not in any readline .h files). */
421 extern char *tilde_expand PARAMS ((char *));
423 /* Control types for commands */
425 enum misc_command_type
433 enum command_control_type
443 /* Structure for saved commands lines
444 (for breakpoints, defined commands, etc). */
448 struct command_line *next;
450 enum command_control_type control_type;
452 struct command_line **body_list;
455 extern struct command_line *read_command_lines PARAMS ((char *, int));
457 extern void free_command_lines PARAMS ((struct command_line **));
459 /* String containing the current directory (what getwd would return). */
461 extern char *current_directory;
463 /* Default radixes for input and output. Only some values supported. */
464 extern unsigned input_radix;
465 extern unsigned output_radix;
467 /* Possibilities for prettyprint parameters to routines which print
468 things. Like enum language, this should be in value.h, but needs
469 to be here for the same reason. FIXME: If we can eliminate this
470 as an arg to LA_VAL_PRINT, then we can probably move it back to
475 Val_no_prettyprint = 0,
477 /* Use the default setting which the user has specified. */
482 /* Host machine definition. This will be a symlink to one of the
483 xm-*.h files, built by the `configure' script. */
487 /* Native machine support. This will be a symlink to one of the
488 nm-*.h files, built by the `configure' script. */
492 /* Target machine definition. This will be a symlink to one of the
493 tm-*.h files, built by the `configure' script. */
497 /* If the xm.h file did not define the mode string used to open the
498 files, assume that binary files are opened the same way as text
501 #include "fopen-same.h"
504 /* Microsoft C can't deal with const pointers */
509 #define CONST_PTR const
513 * Allow things in gdb to be declared "volatile". If compiling ANSI, it
514 * just works. If compiling with gcc but non-ansi, redefine to __volatile__.
515 * If non-ansi, non-gcc, then eliminate "volatile" entirely, making those
516 * objects be read-write rather than read-only.
522 # define volatile __volatile__
524 # define volatile /*nothing*/
527 #endif /* volatile */
529 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
530 FIXME: Assumes 2's complement arithmetic */
532 #if !defined (UINT_MAX)
533 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
536 #if !defined (INT_MAX)
537 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
540 #if !defined (INT_MIN)
541 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
544 #if !defined (ULONG_MAX)
545 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
548 #if !defined (LONG_MAX)
549 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
554 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
556 #define LONGEST BFD_HOST_64_BIT
557 #define ULONGEST BFD_HOST_U_64_BIT
562 # ifdef CC_HAS_LONG_LONG
563 # define LONGEST long long
564 # define ULONGEST unsigned long long
566 # define LONGEST long
567 # define ULONGEST unsigned long
571 #endif /* No BFD64 */
573 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
574 arguments to a function, number in a value history, register number, etc.)
575 where the value must not be larger than can fit in an int. */
577 extern int longest_to_int PARAMS ((LONGEST));
579 /* Assorted functions we can declare, now that const and volatile are
582 extern char *savestring PARAMS ((const char *, int));
584 extern char *msavestring PARAMS ((void *, const char *, int));
586 extern char *strsave PARAMS ((const char *));
588 extern char *mstrsave PARAMS ((void *, const char *));
590 #ifdef _MSC_VER /* FIXME; was long, but this causes compile errors in msvc if already defined */
591 extern PTR xmmalloc PARAMS ((PTR, size_t));
593 extern PTR xmrealloc PARAMS ((PTR, PTR, size_t));
595 extern PTR xmmalloc PARAMS ((PTR, long));
597 extern PTR xmrealloc PARAMS ((PTR, PTR, long));
600 extern int parse_escape PARAMS ((char **));
602 extern char *reg_names[];
604 /* Message to be printed before the error message, when an error occurs. */
606 extern char *error_pre_print;
608 /* Message to be printed before the error message, when an error occurs. */
610 extern char *quit_pre_print;
612 /* Message to be printed before the warning message, when a warning occurs. */
614 extern char *warning_pre_print;
616 extern NORETURN void error PARAMS((char *, ...)) ATTR_NORETURN;
618 extern void error_begin PARAMS ((void));
620 extern NORETURN void fatal PARAMS((char *, ...)) ATTR_NORETURN;
622 extern NORETURN void nomem PARAMS ((long)) ATTR_NORETURN;
624 /* Reasons for calling return_to_top_level. */
626 /* User interrupt. */
629 /* Any other error. */
633 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
634 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
635 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
636 typedef int return_mask;
639 return_to_top_level PARAMS ((enum return_reason)) ATTR_NORETURN;
642 catch_errors PARAMS ((int (*) (char *), void *, char *, return_mask));
644 extern void warning_begin PARAMS ((void));
646 extern void warning PARAMS ((char *, ...))
647 ATTR_FORMAT(printf, 1, 2);
649 /* Global functions from other, non-gdb GNU thingies.
650 Libiberty thingies are no longer declared here. We include libiberty.h
653 #ifndef GETENV_PROVIDED
654 extern char *getenv PARAMS ((const char *));
657 /* From other system libraries */
664 #if defined(_MSC_VER) && !defined(__cplusplus)
665 /* msvc defines these in stdlib.h for c code */
672 #define min(a, b) ((a) < (b) ? (a) : (b))
675 #define max(a, b) ((a) > (b) ? (a) : (b))
679 /* We take the address of fclose later, but some stdio's forget
680 to declare this. We can't always declare it since there's
681 no way to declare the parameters without upsetting some compiler
684 #ifndef FCLOSE_PROVIDED
685 extern int fclose PARAMS ((FILE *));
689 extern double atof PARAMS ((const char *)); /* X3.159-1989 4.10.1.1 */
692 #ifndef MALLOC_INCOMPATIBLE
694 #ifdef NEED_DECLARATION_MALLOC
695 extern PTR malloc ();
698 #ifdef NEED_DECLARATION_REALLOC
699 extern PTR realloc ();
702 #ifdef NEED_DECLARATION_FREE
706 #endif /* MALLOC_INCOMPATIBLE */
708 /* Various possibilities for alloca. */
711 # define alloca __builtin_alloca
712 # else /* Not GNU C */
714 # include <alloca.h> /* NOTE: Doesn't declare alloca() */
717 /* We need to be careful not to declare this in a way which conflicts with
718 bison. Bison never declares it as char *, but under various circumstances
719 (like __hpux) we need to use void *. */
720 # if defined (__STDC__) || defined (__hpux)
721 extern void *alloca ();
722 # else /* Don't use void *. */
723 extern char *alloca ();
724 # endif /* Don't use void *. */
725 # endif /* Not GNU C */
726 #endif /* alloca not defined */
728 /* HOST_BYTE_ORDER must be defined to one of these. */
734 #if !defined (BIG_ENDIAN)
735 #define BIG_ENDIAN 4321
738 #if !defined (LITTLE_ENDIAN)
739 #define LITTLE_ENDIAN 1234
742 /* Target-system-dependent parameters for GDB. */
744 #ifdef TARGET_BYTE_ORDER_SELECTABLE
745 /* The target endianness is selectable at runtime. Define
746 TARGET_BYTE_ORDER to be a variable. The user can use the `set
747 endian' command to change it. */
748 #undef TARGET_BYTE_ORDER
749 #define TARGET_BYTE_ORDER target_byte_order
750 extern int target_byte_order;
753 extern void set_endian_from_file PARAMS ((bfd *));
755 /* Number of bits in a char or unsigned char for the target machine.
756 Just like CHAR_BIT in <limits.h> but describes the target machine. */
757 #if !defined (TARGET_CHAR_BIT)
758 #define TARGET_CHAR_BIT 8
761 /* Number of bits in a short or unsigned short for the target machine. */
762 #if !defined (TARGET_SHORT_BIT)
763 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
766 /* Number of bits in an int or unsigned int for the target machine. */
767 #if !defined (TARGET_INT_BIT)
768 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
771 /* Number of bits in a long or unsigned long for the target machine. */
772 #if !defined (TARGET_LONG_BIT)
773 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
776 /* Number of bits in a long long or unsigned long long for the target machine. */
777 #if !defined (TARGET_LONG_LONG_BIT)
778 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
781 /* Number of bits in a float for the target machine. */
782 #if !defined (TARGET_FLOAT_BIT)
783 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
786 /* Number of bits in a double for the target machine. */
787 #if !defined (TARGET_DOUBLE_BIT)
788 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
791 /* Number of bits in a long double for the target machine. */
792 #if !defined (TARGET_LONG_DOUBLE_BIT)
793 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
796 /* Number of bits in a pointer for the target machine */
797 #if !defined (TARGET_PTR_BIT)
798 #define TARGET_PTR_BIT TARGET_INT_BIT
801 /* If we picked up a copy of CHAR_BIT from a configuration file
802 (which may get it by including <limits.h>) then use it to set
803 the number of bits in a host char. If not, use the same size
806 #if defined (CHAR_BIT)
807 #define HOST_CHAR_BIT CHAR_BIT
809 #define HOST_CHAR_BIT TARGET_CHAR_BIT
812 /* The bit byte-order has to do just with numbering of bits in
813 debugging symbols and such. Conceptually, it's quite separate
814 from byte/word byte order. */
816 #if !defined (BITS_BIG_ENDIAN)
817 #ifndef TARGET_BYTE_ORDER_SELECTABLE
819 #if TARGET_BYTE_ORDER == BIG_ENDIAN
820 #define BITS_BIG_ENDIAN 1
821 #endif /* Big endian. */
823 #if TARGET_BYTE_ORDER == LITTLE_ENDIAN
824 #define BITS_BIG_ENDIAN 0
825 #endif /* Little endian. */
827 #else /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
829 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
831 #endif /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
832 #endif /* BITS_BIG_ENDIAN not defined. */
836 extern LONGEST extract_signed_integer PARAMS ((void *, int));
838 extern ULONGEST extract_unsigned_integer PARAMS ((void *, int));
840 extern int extract_long_unsigned_integer PARAMS ((void *, int, LONGEST *));
842 extern CORE_ADDR extract_address PARAMS ((void *, int));
844 extern void store_signed_integer PARAMS ((void *, int, LONGEST));
846 extern void store_unsigned_integer PARAMS ((void *, int, ULONGEST));
848 extern void store_address PARAMS ((void *, int, CORE_ADDR));
850 /* Setup definitions for host and target floating point formats. We need to
851 consider the format for `float', `double', and `long double' for both target
852 and host. We need to do this so that we know what kind of conversions need
853 to be done when converting target numbers to and from the hosts DOUBLEST
856 /* This is used to indicate that we don't know the format of the floating point
857 number. Typically, this is useful for native ports, where the actual format
858 is irrelevant, since no conversions will be taking place. */
860 extern const struct floatformat floatformat_unknown;
862 #if HOST_BYTE_ORDER == BIG_ENDIAN
863 # ifndef HOST_FLOAT_FORMAT
864 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
866 # ifndef HOST_DOUBLE_FORMAT
867 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
869 #else /* LITTLE_ENDIAN */
870 # ifndef HOST_FLOAT_FORMAT
871 # define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
873 # ifndef HOST_DOUBLE_FORMAT
874 # define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
878 #ifndef HOST_LONG_DOUBLE_FORMAT
879 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
882 #ifndef TARGET_BYTE_ORDER_SELECTABLE
883 # if TARGET_BYTE_ORDER == BIG_ENDIAN
884 # ifndef TARGET_FLOAT_FORMAT
885 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_big
887 # ifndef TARGET_DOUBLE_FORMAT
888 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_big
890 # else /* LITTLE_ENDIAN */
891 # ifndef TARGET_FLOAT_FORMAT
892 # define TARGET_FLOAT_FORMAT &floatformat_ieee_single_little
894 # ifndef TARGET_DOUBLE_FORMAT
895 # define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_little
898 #else /* TARGET_BYTE_ORDER_SELECTABLE */
899 # ifndef TARGET_FLOAT_FORMAT
900 # define TARGET_FLOAT_FORMAT (target_byte_order == BIG_ENDIAN \
901 ? &floatformat_ieee_single_big \
902 : &floatformat_ieee_single_little)
904 # ifndef TARGET_DOUBLE_FORMAT
905 # define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
906 ? &floatformat_ieee_double_big \
907 : &floatformat_ieee_double_little)
911 #ifndef TARGET_LONG_DOUBLE_FORMAT
912 # define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
915 /* Use `long double' if the host compiler supports it. (Note that this is not
916 necessarily any longer than `double'. On SunOS/gcc, it's the same as
917 double.) This is necessary because GDB internally converts all floating
918 point values to the widest type supported by the host.
920 There are problems however, when the target `long double' is longer than the
921 host's `long double'. In general, we'll probably reduce the precision of
922 any such values and print a warning. */
924 #ifdef HAVE_LONG_DOUBLE
925 typedef long double DOUBLEST;
927 typedef double DOUBLEST;
930 extern void floatformat_to_doublest PARAMS ((const struct floatformat *,
931 char *, DOUBLEST *));
932 extern void floatformat_from_doublest PARAMS ((const struct floatformat *,
933 DOUBLEST *, char *));
934 extern DOUBLEST extract_floating PARAMS ((void *, int));
936 extern void store_floating PARAMS ((void *, int, DOUBLEST));
938 /* On some machines there are bits in addresses which are not really
939 part of the address, but are used by the kernel, the hardware, etc.
940 for special purposes. ADDR_BITS_REMOVE takes out any such bits
941 so we get a "real" address such as one would find in a symbol
942 table. This is used only for addresses of instructions, and even then
943 I'm not sure it's used in all contexts. It exists to deal with there
944 being a few stray bits in the PC which would mislead us, not as some sort
945 of generic thing to handle alignment or segmentation (it's possible it
946 should be in TARGET_READ_PC instead). */
947 #if !defined (ADDR_BITS_REMOVE)
948 #define ADDR_BITS_REMOVE(addr) (addr)
949 #endif /* No ADDR_BITS_REMOVE. */
953 extern CORE_ADDR push_bytes PARAMS ((CORE_ADDR, char *, int));
955 extern CORE_ADDR push_word PARAMS ((CORE_ADDR, ULONGEST));
957 /* Some parts of gdb might be considered optional, in the sense that they
958 are not essential for being able to build a working, usable debugger
959 for a specific environment. For example, the maintenance commands
960 are there for the benefit of gdb maintainers. As another example,
961 some environments really don't need gdb's that are able to read N
962 different object file formats. In order to make it possible (but
963 not necessarily recommended) to build "stripped down" versions of
964 gdb, the following defines control selective compilation of those
965 parts of gdb which can be safely left out when necessary. Note that
966 the default is to include everything. */
968 #ifndef MAINTENANCE_CMDS
969 #define MAINTENANCE_CMDS 1
972 #ifdef MAINTENANCE_CMDS
976 #include "dis-asm.h" /* Get defs for disassemble_info */
978 extern int dis_asm_read_memory PARAMS ((bfd_vma memaddr, bfd_byte *myaddr,
979 int len, disassemble_info *info));
981 extern void dis_asm_memory_error PARAMS ((int status, bfd_vma memaddr,
982 disassemble_info *info));
984 extern void dis_asm_print_address PARAMS ((bfd_vma addr,
985 disassemble_info *info));
987 extern int (*tm_print_insn) PARAMS ((bfd_vma, disassemble_info*));
988 extern disassemble_info tm_print_insn_info;
990 /* Hooks for alternate command interfaces. */
993 struct target_waitstatus;
994 struct cmd_list_element;
997 extern void (*init_ui_hook) PARAMS ((void));
998 extern void (*command_loop_hook) PARAMS ((void));
999 extern void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer,
1001 extern void (*print_frame_info_listing_hook) PARAMS ((struct symtab *s,
1002 int line, int stopline,
1004 extern int (*query_hook) PARAMS ((const char *, va_list));
1005 extern void (*flush_hook) PARAMS ((FILE *stream));
1006 extern void (*create_breakpoint_hook) PARAMS ((struct breakpoint *b));
1007 extern void (*delete_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
1008 extern void (*modify_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
1009 extern void (*target_output_hook) PARAMS ((char *));
1010 extern void (*interactive_hook) PARAMS ((void));
1011 extern void (*registers_changed_hook) PARAMS ((void));
1012 extern void (*readline_begin_hook) PARAMS ((char *, ...));
1013 extern char * (*readline_hook) PARAMS ((char *));
1014 extern void (*readline_end_hook) PARAMS ((void));
1016 extern int (*target_wait_hook) PARAMS ((int pid,
1017 struct target_waitstatus *status));
1019 extern void (*call_command_hook) PARAMS ((struct cmd_list_element *c,
1020 char *cmd, int from_tty));
1022 extern NORETURN void (*error_hook) PARAMS ((void)) ATTR_NORETURN;
1026 /* Inhibit window interface if non-zero. */
1028 extern int use_windows;
1030 /* Symbolic definitions of filename-related things. */
1031 /* FIXME, this doesn't work very well if host and executable
1032 filesystems conventions are different. */
1034 #ifndef DIRNAME_SEPARATOR
1035 #define DIRNAME_SEPARATOR ':'
1039 #if defined(__GO32__)||defined(_WIN32)
1040 #define SLASH_P(X) ((X)=='\\')
1042 #define SLASH_P(X) ((X)=='/')
1047 #if defined(__GO32__)||defined(_WIN32)
1048 #define SLASH_CHAR '\\'
1050 #define SLASH_CHAR '/'
1054 #ifndef SLASH_STRING
1055 #if defined(__GO32__)||defined(_WIN32)
1056 #define SLASH_STRING "\\"
1058 #define SLASH_STRING "/"
1063 #define ROOTED_P(X) (SLASH_P((X)[0]))
1066 /* On some systems, PIDGET is defined to extract the inferior pid from
1067 an internal pid that has the thread id and pid in seperate bit
1068 fields. If not defined, then just use the entire internal pid as
1072 #define PIDGET(pid) (pid)
1075 #endif /* #ifndef DEFS_H */