old-cross-binutils/gdb/defs.h
Stu Grossman 0a5d35ed30 * command.h, defs.h, eval.h, expression.h, remote-sa.sparc.c,
sparc-tdep.c, symtab.h, target.h, value.h, vx-share/ptrace.h,
vx-share/xdr_ptrace.h, vx-share/xdr_rdb.h:  ANSIfy enums.
1991-12-19 01:14:31 +00:00

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/* 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 */
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;
/* 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 */
/* Host machine definition. This will be a symlink to one of the
xm-*.h files, built by the `configure' script. */
#include "xm.h"
/*
* 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 */
/* Defaults for system-wide constants (if not defined by xm.h, we fake it). */
#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. */
/* Assorted functions we can declare, now that const and volatile are
defined. */
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
/* 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
/* Target-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
/* 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 */