xm-i386v4.h

早期freebsd实现

/* Macro definitions for GDB on an Intel i386 running SVR4.
   Copyright 1991, 1992 Free Software Foundation, Inc.
   Written by Fred Fish at Cygnus Support ([e-mail]).

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.  */

/* Pick up most of what we need from the generic i386 host include file. */

#include "xm-i386v.h"

/* Pick up more stuff from the generic SVR4 host include file. */

#include "xm-sysv4.h"

/* The native AT&T compiler for i386/SVR4 complains about using volatile
   to indicate functions that never return.  So shut it up by simply
   defining away "NORETURN", which is normally defined to "volatile". */

#ifndef __GNUC__
# define NORETURN /**/
#endif

/* If you expect to use the mmalloc package to obtain mapped symbol files,
   for now you have to specify some parameters that determine how gdb places
   the mappings in it's address space.  See the comments in map_to_address()
   for details.  This is expected to only be a short term solution.  Yes it
   is a kludge.
   FIXME:  Make this more automatic. */

#define MMAP_BASE_ADDRESS	0x81000000	/* First mapping here */
#define MMAP_INCREMENT		0x01000000	/* Increment to next mapping */