1 /* Basic, host-specific, and target-specific definitions for GDB.
2 Copyright (C) 1986, 1989, 1991 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
25 /* First include ansidecl.h so we can use the various macro definitions
26 here and in all subsequent file inclusions. */
30 /* An address in the program being debugged. Host byte order. */
31 typedef unsigned int CORE_ADDR
;
33 #define min(a, b) ((a) < (b) ? (a) : (b))
34 #define max(a, b) ((a) > (b) ? (a) : (b))
36 /* The character C++ uses to build identifiers that must be unique from
37 the program's identifiers (such as $this and $$vptr). */
38 #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
40 #include <errno.h> /* System call error return status */
43 extern int immediate_quit
;
48 #define QUIT { if (quit_flag) quit (); }
50 /* Notes on classes: class_alias is for alias commands which are not
51 abbreviations of the original command. */
55 /* Special args to help_list */
56 all_classes
= -2, all_commands
= -1,
57 /* Classes of commands */
58 no_class
= -1, class_run
= 0, class_vars
, class_stack
,
59 class_files
, class_support
, class_info
, class_breakpoint
,
60 class_alias
, class_obscure
, class_user
63 /* the cleanup list records things that have to be undone
64 if an error happens (descriptors to be closed, memory to be freed, etc.)
65 Each link in the chain records a function to call and an
68 Use make_cleanup to add an element to the cleanup chain.
69 Use do_cleanups to do all cleanup actions back to a given
70 point in the chain. Use discard_cleanups to remove cleanups
71 from the chain back to a given point, not doing them. */
76 void (*function
) PARAMS ((PTR
));
80 /* From blockframe.c */
83 inside_entry_func
PARAMS ((CORE_ADDR
));
86 inside_entry_file
PARAMS ((CORE_ADDR addr
));
89 inside_main_func
PARAMS ((CORE_ADDR pc
));
91 /* From cplus-dem.c */
94 cplus_demangle
PARAMS ((const char *, int));
97 cplus_mangle_opname
PARAMS ((char *, int));
99 /* From libmmalloc.a (memory mapped malloc library) */
102 mmalloc_attach
PARAMS ((int, PTR
));
105 mmalloc_detach
PARAMS ((PTR
));
108 mmalloc
PARAMS ((PTR
, long));
111 mrealloc
PARAMS ((PTR
, PTR
, long));
114 mfree
PARAMS ((PTR
, PTR
));
117 mmalloc_setkey
PARAMS ((PTR
, int, PTR
));
120 mmalloc_getkey
PARAMS ((PTR
, int));
125 demangle_and_match
PARAMS ((const char *, const char *, int));
128 strcmp_iw
PARAMS ((const char *, const char *));
131 safe_strerror
PARAMS ((int));
134 safe_strsignal
PARAMS ((int));
137 init_malloc
PARAMS ((PTR
));
140 request_quit
PARAMS ((int));
143 do_cleanups
PARAMS ((struct cleanup
*));
146 discard_cleanups
PARAMS ((struct cleanup
*));
148 /* The bare make_cleanup function is one of those rare beasts that
149 takes almost any type of function as the first arg and anything that
150 will fit in a "void *" as the second arg.
152 Should be, once all calls and called-functions are cleaned up:
153 extern struct cleanup *
154 make_cleanup PARAMS ((void (*function) (PTR), PTR));
156 Until then, lint and/or various type-checking compiler options will
157 complain about make_cleanup calls. It'd be wrong to just cast things,
158 since the type actually passed when the function is called would be
161 extern struct cleanup
*
164 extern struct cleanup
*
165 save_cleanups
PARAMS ((void));
168 restore_cleanups
PARAMS ((struct cleanup
*));
171 free_current_contents
PARAMS ((char **));
174 null_cleanup
PARAMS ((char **));
177 myread
PARAMS ((int, char *, int));
183 wrap_here
PARAMS ((char *));
186 reinitialize_more_filter
PARAMS ((void));
189 print_insn
PARAMS ((CORE_ADDR
, FILE *));
192 fputs_filtered
PARAMS ((const char *, FILE *));
195 puts_filtered
PARAMS ((char *));
204 print_spaces
PARAMS ((int, FILE *));
207 print_spaces_filtered
PARAMS ((int, FILE *));
210 n_spaces
PARAMS ((int));
213 printchar
PARAMS ((int, FILE *, int));
216 strdup_demangled
PARAMS ((const char *));
219 fprint_symbol
PARAMS ((FILE *, char *));
222 fputs_demangled
PARAMS ((char *, FILE *, int));
225 perror_with_name
PARAMS ((char *));
228 print_sys_errmsg
PARAMS ((char *, int));
233 re_comp
PARAMS ((char *));
238 symbol_file_command
PARAMS ((char *, int));
243 skip_quoted
PARAMS ((char *));
246 gdb_readline
PARAMS ((char *));
249 command_line_input
PARAMS ((char *, int));
252 print_prompt
PARAMS ((void));
255 batch_mode
PARAMS ((void));
258 input_from_terminal_p
PARAMS ((void));
261 catch_errors
PARAMS ((int (*) (char *), char *, char *));
263 /* From printcmd.c */
266 set_next_address
PARAMS ((CORE_ADDR
));
269 print_address_symbolic
PARAMS ((CORE_ADDR
, FILE *, int, char *));
272 print_address
PARAMS ((CORE_ADDR
, FILE *));
277 openp
PARAMS ((char *, int, char *, int, int, char **));
280 mod_path
PARAMS ((char *, char **));
283 directory_command
PARAMS ((char *, int));
286 init_source_path
PARAMS ((void));
291 read_relative_register_raw_bytes
PARAMS ((int, char *));
293 /* From readline (but not in any readline .h files). */
296 tilde_expand
PARAMS ((char *));
298 /* Structure for saved commands lines
299 (for breakpoints, defined commands, etc). */
303 struct command_line
*next
;
307 extern struct command_line
*
308 read_command_lines
PARAMS ((void));
311 free_command_lines
PARAMS ((struct command_line
**));
313 /* String containing the current directory (what getwd would return). */
315 extern char *current_directory
;
317 /* Default radixes for input and output. Only some values supported. */
318 extern unsigned input_radix
;
319 extern unsigned output_radix
;
321 /* Baud rate specified for communication with serial target systems. */
322 extern char *baud_rate
;
324 /* Languages represented in the symbol table and elsewhere. */
328 language_unknown
, /* Language not known */
329 language_auto
, /* Placeholder for automatic setting */
331 language_cplus
, /* C++ */
332 language_m2
/* Modula-2 */
335 /* Return a format string for printf that will print a number in the local
336 (language-specific) hexadecimal format. Result is static and is
337 overwritten by the next call. local_hex_format_custom takes printf
338 options like "08" or "l" (to produce e.g. %08x or %lx). */
340 #define local_hex_format() (current_language->la_hex_format)
343 local_hex_format_custom
PARAMS ((char *)); /* language.c */
345 /* Return a string that contains a number formatted in the local
346 (language-specific) hexadecimal format. Result is static and is
347 overwritten by the next call. local_hex_string_custom takes printf
348 options like "08" or "l". */
351 local_hex_string
PARAMS ((int)); /* language.c */
354 local_hex_string_custom
PARAMS ((int, char *)); /* language.c */
357 /* Host machine definition. This will be a symlink to one of the
358 xm-*.h files, built by the `configure' script. */
362 /* If the xm.h file did not define the mode string used to open the
363 files, assume that binary files are opened the same way as text
366 #include "fopen-same.h"
370 * Allow things in gdb to be declared "const". If compiling ANSI, it
371 * just works. If compiling with gcc but non-ansi, redefine to __const__.
372 * If non-ansi, non-gcc, then eliminate "const" entirely, making those
373 * objects be read-write rather than read-only.
379 # define const __const__
381 # define const /*nothing*/
389 # define volatile __volatile__
391 # define volatile /*nothing*/
394 #endif /* volatile */
396 /* Some compilers (many AT&T SVR4 compilers for instance), do not accept
397 declarations of functions that never return (exit for instance) as
398 "volatile void". For such compilers "NORETURN" can be defined away
399 to keep them happy */
403 # define NORETURN /*nothing*/
405 # define NORETURN volatile
409 /* Defaults for system-wide constants (if not defined by xm.h, we fake it). */
411 #if !defined (UINT_MAX)
412 #define UINT_MAX 0xffffffff
415 #if !defined (LONG_MAX)
416 #define LONG_MAX 0x7fffffff
419 #if !defined (INT_MAX)
420 #define INT_MAX 0x7fffffff
423 #if !defined (INT_MIN)
424 /* Two's complement, 32 bit. */
425 #define INT_MIN -0x80000000
428 /* Number of bits in a char or unsigned char for the target machine.
429 Just like CHAR_BIT in <limits.h> but describes the target machine. */
430 #if !defined (TARGET_CHAR_BIT)
431 #define TARGET_CHAR_BIT 8
434 /* Number of bits in a short or unsigned short for the target machine. */
435 #if !defined (TARGET_SHORT_BIT)
436 #define TARGET_SHORT_BIT (sizeof (short) * TARGET_CHAR_BIT)
439 /* Number of bits in an int or unsigned int for the target machine. */
440 #if !defined (TARGET_INT_BIT)
441 #define TARGET_INT_BIT (sizeof (int) * TARGET_CHAR_BIT)
444 /* Number of bits in a long or unsigned long for the target machine. */
445 #if !defined (TARGET_LONG_BIT)
446 #define TARGET_LONG_BIT (sizeof (long) * TARGET_CHAR_BIT)
449 /* Number of bits in a long long or unsigned long long for the target machine. */
450 #if !defined (TARGET_LONG_LONG_BIT)
451 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
454 /* Number of bits in a float for the target machine. */
455 #if !defined (TARGET_FLOAT_BIT)
456 #define TARGET_FLOAT_BIT (sizeof (float) * TARGET_CHAR_BIT)
459 /* Number of bits in a double for the target machine. */
460 #if !defined (TARGET_DOUBLE_BIT)
461 #define TARGET_DOUBLE_BIT (sizeof (double) * TARGET_CHAR_BIT)
464 /* Number of bits in a long double for the target machine. */
465 #if !defined (TARGET_LONG_DOUBLE_BIT)
466 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
469 /* Number of bits in a "complex" for the target machine. */
470 #if !defined (TARGET_COMPLEX_BIT)
471 #define TARGET_COMPLEX_BIT (2 * TARGET_FLOAT_BIT)
474 /* Number of bits in a "double complex" for the target machine. */
475 #if !defined (TARGET_DOUBLE_COMPLEX_BIT)
476 #define TARGET_DOUBLE_COMPLEX_BIT (2 * TARGET_DOUBLE_BIT)
479 /* Number of bits in a pointer for the target machine */
480 #if !defined (TARGET_PTR_BIT)
481 #define TARGET_PTR_BIT TARGET_INT_BIT
484 /* Convert a LONGEST to an int. This is used in contexts (e.g. number
485 of arguments to a function, number in a value history, register
486 number, etc.) where the value must not be larger than can fit
488 #if !defined (longest_to_int)
489 #if defined (LONG_LONG)
490 #define longest_to_int(x) (((x) > INT_MAX || (x) < INT_MIN) \
491 ? (error ("Value out of range."),0) : (int) (x))
492 #else /* No LONG_LONG. */
493 /* Assume sizeof (int) == sizeof (long). */
494 #define longest_to_int(x) ((int) (x))
495 #endif /* No LONG_LONG. */
496 #endif /* No longest_to_int. */
498 /* This should not be a typedef, because "unsigned LONGEST" needs
499 to work. LONG_LONG is defined if the host has "long long". */
503 # define LONGEST long long
505 # define LONGEST long
509 /* Assorted functions we can declare, now that const and volatile are
513 savestring
PARAMS ((const char *, int));
516 msavestring
PARAMS ((void *, const char *, int));
519 strsave
PARAMS ((const char *));
522 mstrsave
PARAMS ((void *, const char *));
525 concat
PARAMS ((char *, ...));
528 xmalloc
PARAMS ((long));
531 xrealloc
PARAMS ((PTR
, long));
534 xmmalloc
PARAMS ((PTR
, long));
537 xmrealloc
PARAMS ((PTR
, PTR
, long));
540 mmalloc
PARAMS ((PTR
, long));
543 mrealloc
PARAMS ((PTR
, PTR
, long));
546 mfree
PARAMS ((PTR
, PTR
));
549 mmcheck
PARAMS ((PTR
, void (*) (void)));
552 mmtrace
PARAMS ((void));
555 parse_escape
PARAMS ((char **));
557 extern const char * const reg_names
[];
559 extern NORETURN
void /* Does not return to the caller. */
562 extern NORETURN
void /* Does not return to the caller. */
565 extern NORETURN
void /* Not specified as volatile in ... */
566 exit
PARAMS ((int)); /* 4.10.4.3 */
568 extern NORETURN
void /* Does not return to the caller. */
569 nomem
PARAMS ((long));
571 extern NORETURN
void /* Does not return to the caller. */
572 return_to_top_level
PARAMS ((void));
575 warning_setup
PARAMS ((void));
580 /* Global functions from other, non-gdb GNU thingies (libiberty for
584 basename
PARAMS ((char *));
587 getenv
PARAMS ((CONST
char *));
590 buildargv
PARAMS ((char *));
593 freeargv
PARAMS ((char **));
596 strerrno
PARAMS ((int));
599 strsigno
PARAMS ((int));
602 errno_max
PARAMS ((void));
605 signo_max
PARAMS ((void));
608 strtoerrno
PARAMS ((char *));
611 strtosigno
PARAMS ((char *));
614 strsignal
PARAMS ((int));
616 /* From other system libraries */
618 #ifndef PSIGNAL_IN_SIGNAL_H
620 psignal
PARAMS ((unsigned, char *));
623 /* For now, we can't include <stdlib.h> because it conflicts with
624 "../include/getopt.h". (FIXME)
626 However, if a function is defined in the ANSI C standard and a prototype
627 for that function is defined and visible in any header file in an ANSI
628 conforming environment, then that prototype must match the definition in
629 the ANSI standard. So we can just duplicate them here without conflict,
630 since they must be the same in all conforming ANSI environments. If
631 these cause problems, then the environment is not ANSI conformant. */
638 fclose
PARAMS ((FILE *stream
)); /* 4.9.5.1 */
641 perror
PARAMS ((const char *)); /* 4.9.10.4 */
644 atof
PARAMS ((const char *nptr
)); /* 4.10.1.1 */
647 atoi
PARAMS ((const char *)); /* 4.10.1.2 */
649 #ifndef MALLOC_INCOMPATIBLE
652 malloc
PARAMS ((size_t size
)); /* 4.10.3.3 */
655 realloc
PARAMS ((void *ptr
, size_t size
)); /* 4.10.3.4 */
658 free
PARAMS ((void *)); /* 4.10.3.2 */
660 #endif /* MALLOC_INCOMPATIBLE */
663 qsort
PARAMS ((void *base
, size_t nmemb
, /* 4.10.5.2 */
665 int (*comp
)(const void *, const void *)));
668 memcpy
PARAMS ((void *, const void *, size_t)); /* 4.11.2.1 */
671 memcmp
PARAMS ((const void *, const void *, size_t)); /* 4.11.4.1 */
674 strchr
PARAMS ((const char *, int)); /* 4.11.5.2 */
677 strrchr
PARAMS ((const char *, int)); /* 4.11.5.5 */
680 strstr
PARAMS ((const char *, const char *)); /* 4.11.5.7 */
683 strtok
PARAMS ((char *, const char *)); /* 4.11.5.8 */
686 memset
PARAMS ((void *, int, size_t)); /* 4.11.6.1 */
689 strerror
PARAMS ((int)); /* 4.11.6.2 */
691 /* Various possibilities for alloca. */
694 # define alloca __builtin_alloca
697 # include <alloca.h> /* NOTE: Doesn't declare alloca() */
699 extern PTR alloca
PARAMS ((size_t));
703 /* TARGET_BYTE_ORDER and HOST_BYTE_ORDER must be defined to one of these. */
705 #if !defined (BIG_ENDIAN)
706 #define BIG_ENDIAN 4321
709 #if !defined (LITTLE_ENDIAN)
710 #define LITTLE_ENDIAN 1234
713 /* Target-system-dependent parameters for GDB.
715 The standard thing is to include defs.h. However, files that are
716 specific to a particular target can define TM_FILE_OVERRIDE before
717 including defs.h, then can include any particular tm-file they desire. */
719 /* Target machine definition. This will be a symlink to one of the
720 tm-*.h files, built by the `configure' script. */
722 #ifndef TM_FILE_OVERRIDE
726 /* The bit byte-order has to do just with numbering of bits in
727 debugging symbols and such. Conceptually, it's quite separate
728 from byte/word byte order. */
730 #if !defined (BITS_BIG_ENDIAN)
731 #if TARGET_BYTE_ORDER == BIG_ENDIAN
732 #define BITS_BIG_ENDIAN 1
733 #endif /* Big endian. */
735 #if TARGET_BYTE_ORDER == LITTLE_ENDIAN
736 #define BITS_BIG_ENDIAN 0
737 #endif /* Little endian. */
738 #endif /* BITS_BIG_ENDIAN not defined. */
740 /* Swap LEN bytes at BUFFER between target and host byte-order. */
741 #if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
742 #define SWAP_TARGET_AND_HOST(buffer,len)
743 #else /* Target and host byte order differ. */
744 #define SWAP_TARGET_AND_HOST(buffer,len) \
747 char *p = (char *)(buffer); \
748 char *q = ((char *)(buffer)) + len - 1; \
749 for (; p < q; p++, q--) \
756 #endif /* Target and host byte order differ. */
758 /* On some machines there are bits in addresses which are not really
759 part of the address, but are used by the kernel, the hardware, etc.
760 for special purposes. ADDR_BITS_REMOVE takes out any such bits
761 so we get a "real" address such as one would find in a symbol
762 table. ADDR_BITS_SET sets those bits the way the system wants
764 #if !defined (ADDR_BITS_REMOVE)
765 #define ADDR_BITS_REMOVE(addr) (addr)
766 #define ADDR_BITS_SET(addr) (addr)
767 #endif /* No ADDR_BITS_REMOVE. */
772 push_bytes
PARAMS ((CORE_ADDR
, char *, int));
774 /* In some modules, we don't have a definition of REGISTER_TYPE yet, so we
775 must avoid prototyping this function for now. FIXME. Should be:
777 push_word PARAMS ((CORE_ADDR, REGISTER_TYPE));
782 #endif /* !defined (DEFS_H) */