[binutils.git] / gdb / defs.h

/* Basic, host-specific, and target-specific definitions for GDB.
   Copyright (C) 1986, 1989, 1991 Free Software Foundation, Inc.

This file is part of GDB.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

#if !defined (DEFS_H)
#define DEFS_H

/* An address in the program being debugged.  Host byte order.  */
typedef unsigned int CORE_ADDR;

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

/* The character C++ uses to build identifiers that must be unique from
   the program's identifiers (such as $this and $$vptr).  */
#define CPLUS_MARKER '$'	/* May be overridden to '.' for SysV */

/*
 * Allow things in gdb to be declared "const".  If compiling ANSI, it
 * just works.  If compiling with gcc but non-ansi, redefine to __const__.
 * If non-ansi, non-gcc, then eliminate "const" entirely, making those
 * objects be read-write rather than read-only.
 */
#ifndef const
#ifndef __STDC__
# ifdef __GNUC__
#  define const __const__
# else
#  define const /*nothing*/
# endif /* GNUC */
#endif /* STDC */
#endif /* const */

#ifndef volatile
#ifndef __STDC__
# ifdef __GNUC__
#  define volatile __volatile__
# else
#  define volatile /*nothing*/
# endif /* GNUC */
#endif /* STDC */
#endif /* volatile */

extern char *savestring ();
extern char *strsave ();
extern char *concat ();
#ifdef __STDC__
extern void *xmalloc (), *xrealloc ();
#else
extern char *xmalloc (), *xrealloc ();
#endif
extern void free ();
extern int parse_escape ();
extern char *reg_names[];
/* Indicate that these routines do not return to the caller.  */
extern volatile void error(), fatal();
extern void warning_setup(), warning();

/* Various possibilities for alloca.  */
#ifndef alloca
# ifdef __GNUC__
#  define alloca __builtin_alloca
# else
#  ifdef sparc
#   include <alloca.h>
#  endif
   extern char *alloca ();
# endif
#endif

extern int errno;			/* System call error return status */

extern int quit_flag;
extern int immediate_quit;
extern void quit ();

#define QUIT { if (quit_flag) quit (); }

/* Notes on classes: class_alias is for alias commands which are not
   abbreviations of the original command.  */

enum command_class
{
  /* Special args to help_list */
  all_classes = -2, all_commands = -1,
  /* Classes of commands */
  no_class = -1, class_run = 0, class_vars, class_stack,
  class_files, class_support, class_info, class_breakpoint,
  class_alias, class_obscure, class_user
};

/* the cleanup list records things that have to be undone
   if an error happens (descriptors to be closed, memory to be freed, etc.)
   Each link in the chain records a function to call and an
   argument to give it.

   Use make_cleanup to add an element to the cleanup chain.
   Use do_cleanups to do all cleanup actions back to a given
   point in the chain.  Use discard_cleanups to remove cleanups
   from the chain back to a given point, not doing them.  */

struct cleanup
{
  struct cleanup *next;
  void (*function) ();
  int arg;
};

/* From utils.c.  */
extern void do_cleanups ();
extern void discard_cleanups ();
extern struct cleanup *make_cleanup ();
extern struct cleanup *save_cleanups ();
extern void restore_cleanups ();
extern void free_current_contents ();
extern int myread ();
extern int query ();
extern void wrap_here (
#ifdef __STDC__
		       char *
#endif
		       );
extern void reinitialize_more_filter ();
extern void fputs_filtered ();
extern void puts_filtered ();
extern void fprintf_filtered ();
extern void printf_filtered ();
extern void print_spaces ();
extern void print_spaces_filtered ();
extern char *n_spaces ();
extern void printchar ();
extern void fprint_symbol ();
extern void fputs_demangled ();
extern void perror_with_name ();
extern void print_sys_errmsg ();

/* From printcmd.c */
extern void print_address_symbolic ();
extern void print_address ();

/* From source.c */
void mod_path (
#ifdef __STDC__
	       char *, char **
#endif
	       );

/* From readline (but not in any readline .h files).  */
extern char *tilde_expand ();

/* Structure for saved commands lines
   (for breakpoints, defined commands, etc).  */

struct command_line
{
  struct command_line *next;
  char *line;
};

extern struct command_line *read_command_lines ();
extern void free_command_lines ();

/* String containing the current directory (what getwd would return).  */

char *current_directory;

/* Default radixes for input and output.  Only some values supported.  */
extern unsigned input_radix;
extern unsigned output_radix;

/* Baud rate specified for communication with serial target systems.  */
char *baud_rate;

#if !defined (UINT_MAX)
#define UINT_MAX 0xffffffff
#endif

#if !defined (LONG_MAX)
#define LONG_MAX 0x7fffffff
#endif

#if !defined (INT_MAX)
#define INT_MAX 0x7fffffff
#endif

#if !defined (INT_MIN)
/* Two's complement, 32 bit.  */
#define INT_MIN -0x80000000
#endif

/* Number of bits in a char or unsigned char for the target machine.
   Just like CHAR_BIT in <limits.h> but describes the target machine.  */
#if !defined (TARGET_CHAR_BIT)
#define TARGET_CHAR_BIT 8
#endif

/* Number of bits in a short or unsigned short for the target machine. */
#if !defined (TARGET_SHORT_BIT)
#define TARGET_SHORT_BIT (sizeof (short) * TARGET_CHAR_BIT)
#endif

/* Number of bits in an int or unsigned int for the target machine. */
#if !defined (TARGET_INT_BIT)
#define TARGET_INT_BIT (sizeof (int) * TARGET_CHAR_BIT)
#endif

/* Number of bits in a long or unsigned long for the target machine. */
#if !defined (TARGET_LONG_BIT)
#define TARGET_LONG_BIT (sizeof (long) * TARGET_CHAR_BIT)
#endif

/* Number of bits in a long long or unsigned long long for the target machine. */
#if !defined (TARGET_LONG_LONG_BIT)
#define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
#endif

/* Number of bits in a float for the target machine. */
#if !defined (TARGET_FLOAT_BIT)
#define TARGET_FLOAT_BIT (sizeof (float) * TARGET_CHAR_BIT)
#endif

/* Number of bits in a double for the target machine. */
#if !defined (TARGET_DOUBLE_BIT)
#define TARGET_DOUBLE_BIT (sizeof (double) * TARGET_CHAR_BIT)
#endif

/* Number of bits in a long double for the target machine. */
#if !defined (TARGET_LONG_DOUBLE_BIT)
#define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
#endif

/* Number of bits in a "complex" for the target machine. */
#if !defined (TARGET_COMPLEX_BIT)
#define TARGET_COMPLEX_BIT (2 * TARGET_FLOAT_BIT)
#endif

/* Number of bits in a "double complex" for the target machine. */
#if !defined (TARGET_DOUBLE_COMPLEX_BIT)
#define TARGET_DOUBLE_COMPLEX_BIT (2 * TARGET_DOUBLE_BIT)
#endif

/* Convert a LONGEST to an int.  This is used in contexts (e.g. number
   of arguments to a function, number in a value history, register
   number, etc.) where the value must not be larger than can fit
   in an int.  */
#if !defined (longest_to_int)
#if defined (LONG_LONG)
#define longest_to_int(x) (((x) > INT_MAX || (x) < INT_MIN) \
			   ? error ("Value out of range.") : (int) (x))
#else /* No LONG_LONG.  */
/* Assume sizeof (int) == sizeof (long).  */
#define longest_to_int(x) ((int) (x))
#endif /* No LONG_LONG.  */
#endif /* No longest_to_int.  */

/* Languages represented in the symbol table and elsewhere. */

enum language 
{
   language_unknown, 		/* Language not known */
   language_auto,		/* Placeholder for automatic setting */
   language_c, 			/* C */
   language_cplus, 		/* C++ */
   language_m2,			/* Modula-2 */
};

/* Return a format string for printf that will print a number in the local
   (language-specific) hexadecimal format.  Result is static and is
   overwritten by the next call.  local_hex_format_custom takes printf
   options like "08" or "l" (to produce e.g. %08x or %lx).  */

#define local_hex_format() (current_language->la_hex_format)
char *local_hex_format_custom();		/* language.c */

/* Return a string that contains a number formatted in the local
   (language-specific) hexadecimal format.  Result is static and is
   overwritten by the next call.  local_hex_string_custom takes printf
   options like "08" or "l".  */

char *local_hex_string ();			/* language.c */
char *local_hex_string_custom ();		/* language.c */
\f
/* System-dependent parameters for GDB.

   The standard thing is to include defs.h.  However, files that are
   specific to a particular target can define TM_FILE_OVERRIDE before
   including defs.h, then can include any particular tm-file they desire.  */

/* Target machine definition.  This will be a symlink to one of the
   tm-*.h files, built by the `configure' script.  */

#ifndef TM_FILE_OVERRIDE
#include "tm.h"
#endif

/* Host machine definition.  This will be a symlink to one of the
   xm-*.h files, built by the `configure' script.  */

#include "xm.h"

/* TARGET_BYTE_ORDER and HOST_BYTE_ORDER should be defined to one of these.  */
#if !defined (BIG_ENDIAN)
#define BIG_ENDIAN 4321
#endif

#if !defined (LITTLE_ENDIAN)
#define LITTLE_ENDIAN 1234
#endif

/* The bit byte-order has to do just with numbering of bits in
   debugging symbols and such.  Conceptually, it's quite separate
   from byte/word byte order.  */

#if !defined (BITS_BIG_ENDIAN)
#if TARGET_BYTE_ORDER == BIG_ENDIAN
#define BITS_BIG_ENDIAN 1
#endif /* Big endian.  */

#if TARGET_BYTE_ORDER == LITTLE_ENDIAN
#define BITS_BIG_ENDIAN 0
#endif /* Little endian.  */
#endif /* BITS_BIG_ENDIAN not defined.  */

/* Swap LEN bytes at BUFFER between target and host byte-order.  */
#if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
#define SWAP_TARGET_AND_HOST(buffer,len)
#else /* Target and host byte order differ.  */
#define SWAP_TARGET_AND_HOST(buffer,len) \
  {	       	       	       	       	       	       	       	       	 \
    char tmp;								 \
    char *p = (char *)(buffer);						 \
    char *q = ((char *)(buffer)) + len - 1;		   		 \
    for (; p < q; p++, q--)				 		 \
      {									 \
        tmp = *q;							 \
        *q = *p;							 \
        *p = tmp;							 \
      }									 \
  }
#endif /* Target and host byte order differ.  */

/* On some machines there are bits in addresses which are not really
   part of the address, but are used by the kernel, the hardware, etc.
   for special purposes.  ADDR_BITS_REMOVE takes out any such bits
   so we get a "real" address such as one would find in a symbol
   table.  ADDR_BITS_SET sets those bits the way the system wants
   them.  */
#if !defined (ADDR_BITS_REMOVE)
#define ADDR_BITS_REMOVE(addr) (addr)
#define ADDR_BITS_SET(addr) (addr)
#endif /* No ADDR_BITS_REMOVE.  */

#if !defined (SYS_SIGLIST_MISSING)
#define SYS_SIGLIST_MISSING defined (USG)
#endif /* No SYS_SIGLIST_MISSING */

#endif /* no DEFS_H */
Commit	Line	Data
7d9884b9	1	/* Basic, host-specific, and target-specific definitions for GDB.
bd5635a1 RP	2	Copyright (C) 1986, 1989, 1991 Free Software Foundation, Inc.
	3
	4	This file is part of GDB.
	5
a10c0d36	6	This program is free software; you can redistribute it and/or modify
bd5635a1	7	it under the terms of the GNU General Public License as published by
a10c0d36 JG	8	the Free Software Foundation; either version 2 of the License, or
a10c0d36 JG	9	(at your option) any later version.
bd5635a1	10
a10c0d36	11	This program is distributed in the hope that it will be useful,
bd5635a1 RP	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.
	15
	16	You should have received a copy of the GNU General Public License
a10c0d36 JG	17	along with this program; if not, write to the Free Software
a10c0d36 JG	18	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
bd5635a1	19
c1ace5b5 JK	20	#if !defined (DEFS_H)
	21	#define DEFS_H
	22
bd5635a1 RP	23	/* An address in the program being debugged. Host byte order. */
	24	typedef unsigned int CORE_ADDR;
	25
	26	#define min(a, b) ((a) < (b) ? (a) : (b))
	27	#define max(a, b) ((a) > (b) ? (a) : (b))
	28
	29	/* The character C++ uses to build identifiers that must be unique from
	30	the program's identifiers (such as $this and $$vptr). */
	31	#define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
	32
	33	/*
	34	* Allow things in gdb to be declared "const". If compiling ANSI, it
	35	* just works. If compiling with gcc but non-ansi, redefine to __const__.
	36	* If non-ansi, non-gcc, then eliminate "const" entirely, making those
	37	* objects be read-write rather than read-only.
	38	*/
d11c44f1	39	#ifndef const
bd5635a1 RP	40	#ifndef __STDC__
	41	# ifdef __GNUC__
	42	# define const __const__
bd5635a1 RP	43	# else
bd5635a1 RP	44	# define const /nothing/
d11c44f1 JG	45	# endif /* GNUC */
	46	#endif /* STDC */
	47	#endif /* const */
	48
	49	#ifndef volatile
	50	#ifndef __STDC__
	51	# ifdef __GNUC__
	52	# define volatile __volatile__
	53	# else
bd5635a1 RP	54	# define volatile /nothing/
	55	# endif /* GNUC */
	56	#endif /* STDC */
d11c44f1	57	#endif /* volatile */
bd5635a1 RP	58
	59	extern char *savestring ();
	60	extern char *strsave ();
	61	extern char *concat ();
	62	#ifdef __STDC__
	63	extern void xmalloc (), xrealloc ();
	64	#else
	65	extern char xmalloc (), xrealloc ();
	66	#endif
	67	extern void free ();
	68	extern int parse_escape ();
	69	extern char *reg_names[];
	70	/* Indicate that these routines do not return to the caller. */
	71	extern volatile void error(), fatal();
7d9884b9	72	extern void warning_setup(), warning();
bd5635a1 RP	73
bd5635a1 RP	74	/* Various possibilities for alloca. */
d11c44f1 JG	75	#ifndef alloca
	76	# ifdef __GNUC__
	77	# define alloca __builtin_alloca
	78	# else
	79	# ifdef sparc
	80	# include <alloca.h>
	81	# endif
	82	extern char *alloca ();
bd5635a1	83	# endif
d11c44f1	84	#endif
bd5635a1 RP	85
	86	extern int errno; /* System call error return status */
	87
	88	extern int quit_flag;
	89	extern int immediate_quit;
	90	extern void quit ();
	91
	92	#define QUIT { if (quit_flag) quit (); }
	93
	94	/* Notes on classes: class_alias is for alias commands which are not
	95	abbreviations of the original command. */
	96
	97	enum command_class
	98	{
	99	/* Special args to help_list */
	100	all_classes = -2, all_commands = -1,
	101	/* Classes of commands */
	102	no_class = -1, class_run = 0, class_vars, class_stack,
	103	class_files, class_support, class_info, class_breakpoint,
	104	class_alias, class_obscure, class_user
	105	};
	106
	107	/* the cleanup list records things that have to be undone
	108	if an error happens (descriptors to be closed, memory to be freed, etc.)
	109	Each link in the chain records a function to call and an
	110	argument to give it.
	111
	112	Use make_cleanup to add an element to the cleanup chain.
	113	Use do_cleanups to do all cleanup actions back to a given
	114	point in the chain. Use discard_cleanups to remove cleanups
	115	from the chain back to a given point, not doing them. */
	116
	117	struct cleanup
	118	{
	119	struct cleanup *next;
	120	void (*function) ();
	121	int arg;
	122	};
	123
	124	/* From utils.c. */
	125	extern void do_cleanups ();
	126	extern void discard_cleanups ();
	127	extern struct cleanup *make_cleanup ();
	128	extern struct cleanup *save_cleanups ();
	129	extern void restore_cleanups ();
	130	extern void free_current_contents ();
	131	extern int myread ();
	132	extern int query ();
e1ce8aa5 JK	133	extern void wrap_here (
	134	#ifdef __STDC__
	135	char *
	136	#endif
	137	);
bd5635a1 RP	138	extern void reinitialize_more_filter ();
	139	extern void fputs_filtered ();
	140	extern void puts_filtered ();
	141	extern void fprintf_filtered ();
	142	extern void printf_filtered ();
	143	extern void print_spaces ();
	144	extern void print_spaces_filtered ();
	145	extern char *n_spaces ();
	146	extern void printchar ();
	147	extern void fprint_symbol ();
	148	extern void fputs_demangled ();
	149	extern void perror_with_name ();
	150	extern void print_sys_errmsg ();
	151
	152	/* From printcmd.c */
	153	extern void print_address_symbolic ();
	154	extern void print_address ();
	155
e1ce8aa5 JK	156	/* From source.c */
	157	void mod_path (
	158	#ifdef __STDC__
	159	char , char *
	160	#endif
	161	);
	162
bd5635a1 RP	163	/* From readline (but not in any readline .h files). */
	164	extern char *tilde_expand ();
	165
	166	/* Structure for saved commands lines
	167	(for breakpoints, defined commands, etc). */
	168
	169	struct command_line
	170	{
	171	struct command_line *next;
	172	char *line;
	173	};
	174
	175	extern struct command_line *read_command_lines ();
	176	extern void free_command_lines ();
	177
	178	/* String containing the current directory (what getwd would return). */
	179
	180	char *current_directory;
	181
	182	/* Default radixes for input and output. Only some values supported. */
	183	extern unsigned input_radix;
	184	extern unsigned output_radix;
	185
	186	/* Baud rate specified for communication with serial target systems. */
	187	char *baud_rate;
	188
	189	#if !defined (UINT_MAX)
	190	#define UINT_MAX 0xffffffff
	191	#endif
	192
	193	#if !defined (LONG_MAX)
	194	#define LONG_MAX 0x7fffffff
	195	#endif
	196
e1ce8aa5 JK	197	#if !defined (INT_MAX)
	198	#define INT_MAX 0x7fffffff
	199	#endif
	200
	201	#if !defined (INT_MIN)
	202	/* Two's complement, 32 bit. */
	203	#define INT_MIN -0x80000000
	204	#endif
	205
e2aab031 FF	206	/* Number of bits in a char or unsigned char for the target machine.
e2aab031 FF	207	Just like CHAR_BIT in <limits.h> but describes the target machine. */
bd5635a1 RP	208	#if !defined (TARGET_CHAR_BIT)
	209	#define TARGET_CHAR_BIT 8
	210	#endif
c1ace5b5	211
e2aab031 FF	212	/* Number of bits in a short or unsigned short for the target machine. */
	213	#if !defined (TARGET_SHORT_BIT)
	214	#define TARGET_SHORT_BIT (sizeof (short) * TARGET_CHAR_BIT)
	215	#endif
	216
	217	/* Number of bits in an int or unsigned int for the target machine. */
	218	#if !defined (TARGET_INT_BIT)
	219	#define TARGET_INT_BIT (sizeof (int) * TARGET_CHAR_BIT)
	220	#endif
	221
	222	/* Number of bits in a long or unsigned long for the target machine. */
	223	#if !defined (TARGET_LONG_BIT)
	224	#define TARGET_LONG_BIT (sizeof (long) * TARGET_CHAR_BIT)
	225	#endif
	226
	227	/* Number of bits in a long long or unsigned long long for the target machine. */
d166df9b	228	#if !defined (TARGET_LONG_LONG_BIT)
e2aab031 FF	229	#define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
	230	#endif
	231
	232	/* Number of bits in a float for the target machine. */
	233	#if !defined (TARGET_FLOAT_BIT)
	234	#define TARGET_FLOAT_BIT (sizeof (float) * TARGET_CHAR_BIT)
	235	#endif
	236
	237	/* Number of bits in a double for the target machine. */
	238	#if !defined (TARGET_DOUBLE_BIT)
	239	#define TARGET_DOUBLE_BIT (sizeof (double) * TARGET_CHAR_BIT)
	240	#endif
	241
	242	/* Number of bits in a long double for the target machine. */
	243	#if !defined (TARGET_LONG_DOUBLE_BIT)
	244	#define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
	245	#endif
	246
	247	/* Number of bits in a "complex" for the target machine. */
	248	#if !defined (TARGET_COMPLEX_BIT)
	249	#define TARGET_COMPLEX_BIT (2 * TARGET_FLOAT_BIT)
	250	#endif
	251
	252	/* Number of bits in a "double complex" for the target machine. */
	253	#if !defined (TARGET_DOUBLE_COMPLEX_BIT)
	254	#define TARGET_DOUBLE_COMPLEX_BIT (2 * TARGET_DOUBLE_BIT)
d166df9b JK	255	#endif
d166df9b JK	256
e1ce8aa5 JK	257	/* Convert a LONGEST to an int. This is used in contexts (e.g. number
	258	of arguments to a function, number in a value history, register
	259	number, etc.) where the value must not be larger than can fit
	260	in an int. */
	261	#if !defined (longest_to_int)
	262	#if defined (LONG_LONG)
	263	#define longest_to_int(x) (((x) > INT_MAX \|\| (x) < INT_MIN) \
	264	? error ("Value out of range.") : (int) (x))
	265	#else /* No LONG_LONG. */
	266	/* Assume sizeof (int) == sizeof (long). */
	267	#define longest_to_int(x) ((int) (x))
	268	#endif /* No LONG_LONG. */
	269	#endif /* No longest_to_int. */
	270
e2aab031 FF	271	/* Languages represented in the symbol table and elsewhere. */
	272
	273	enum language
	274	{
	275	language_unknown, /* Language not known */
	276	language_auto, /* Placeholder for automatic setting */
	277	language_c, /* C */
7d9884b9	278	language_cplus, /* C++ */
e2aab031 FF	279	language_m2, /* Modula-2 */
	280	};
	281
a10c0d36 JG	282	/* Return a format string for printf that will print a number in the local
	283	(language-specific) hexadecimal format. Result is static and is
	284	overwritten by the next call. local_hex_format_custom takes printf
	285	options like "08" or "l" (to produce e.g. %08x or %lx). */
	286
e2aab031	287	#define local_hex_format() (current_language->la_hex_format)
a10c0d36 JG	288	char local_hex_format_custom(); / language.c */
	289
	290	/* Return a string that contains a number formatted in the local
	291	(language-specific) hexadecimal format. Result is static and is
	292	overwritten by the next call. local_hex_string_custom takes printf
	293	options like "08" or "l". */
	294
e2aab031 FF	295	char local_hex_string (); / language.c */
e2aab031 FF	296	char local_hex_string_custom (); / language.c */
7d9884b9 JG	297	\f
	298	/* System-dependent parameters for GDB.
	299
	300	The standard thing is to include defs.h. However, files that are
	301	specific to a particular target can define TM_FILE_OVERRIDE before
	302	including defs.h, then can include any particular tm-file they desire. */
	303
	304	/* Target machine definition. This will be a symlink to one of the
	305	tm-.h files, built by the `configure' script. /
	306
	307	#ifndef TM_FILE_OVERRIDE
	308	#include "tm.h"
	309	#endif
	310
	311	/* Host machine definition. This will be a symlink to one of the
	312	xm-.h files, built by the `configure' script. /
	313
	314	#include "xm.h"
	315
	316	/* TARGET_BYTE_ORDER and HOST_BYTE_ORDER should be defined to one of these. */
	317	#if !defined (BIG_ENDIAN)
	318	#define BIG_ENDIAN 4321
	319	#endif
	320
	321	#if !defined (LITTLE_ENDIAN)
	322	#define LITTLE_ENDIAN 1234
	323	#endif
	324
	325	/* The bit byte-order has to do just with numbering of bits in
	326	debugging symbols and such. Conceptually, it's quite separate
	327	from byte/word byte order. */
	328
	329	#if !defined (BITS_BIG_ENDIAN)
	330	#if TARGET_BYTE_ORDER == BIG_ENDIAN
	331	#define BITS_BIG_ENDIAN 1
	332	#endif /* Big endian. */
	333
	334	#if TARGET_BYTE_ORDER == LITTLE_ENDIAN
	335	#define BITS_BIG_ENDIAN 0
	336	#endif /* Little endian. */
	337	#endif /* BITS_BIG_ENDIAN not defined. */
	338
	339	/* Swap LEN bytes at BUFFER between target and host byte-order. */
	340	#if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
	341	#define SWAP_TARGET_AND_HOST(buffer,len)
	342	#else /* Target and host byte order differ. */
	343	#define SWAP_TARGET_AND_HOST(buffer,len) \
	344	{ \
	345	char tmp; \
	346	char p = (char )(buffer); \
	347	char q = ((char )(buffer)) + len - 1; \
	348	for (; p < q; p++, q--) \
	349	{ \
	350	tmp = *q; \
	351	q = p; \
	352	*p = tmp; \
	353	} \
	354	}
	355	#endif /* Target and host byte order differ. */
	356
	357	/* On some machines there are bits in addresses which are not really
	358	part of the address, but are used by the kernel, the hardware, etc.
	359	for special purposes. ADDR_BITS_REMOVE takes out any such bits
	360	so we get a "real" address such as one would find in a symbol
361	table. ADDR_BITS_SET sets those bits the way the system wants
362	them. */
363	#if !defined (ADDR_BITS_REMOVE)
364	#define ADDR_BITS_REMOVE(addr) (addr)
365	#define ADDR_BITS_SET(addr) (addr)
366	#endif /* No ADDR_BITS_REMOVE. */
367
368	#if !defined (SYS_SIGLIST_MISSING)
369	#define SYS_SIGLIST_MISSING defined (USG)
370	#endif /* No SYS_SIGLIST_MISSING */
a10c0d36	371
c1ace5b5	372	#endif /* no DEFS_H */