Add 2008 to copyright years.

[bpt/emacs.git] / src / m / macppc.h

/* machine description file For the powerpc Macintosh.
   Copyright (C) 1994, 2001, 2002, 2003, 2004,
                 2005, 2006, 2007, 2008 Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs 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 3, or (at your option)
any later version.

GNU Emacs 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 GNU Emacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.  */

/* Define WORDS_BIG_ENDIAN if lowest-numbered byte in a word
   is the most significant byte.  */

#define WORDS_BIG_ENDIAN

/* Define NO_ARG_ARRAY if you cannot take the address of the first of a
 * group of arguments and treat it as an array of the arguments.  */

#define NO_ARG_ARRAY

/* Define WORD_MACHINE if addresses and such have
 * to be corrected before they can be used as byte counts.  */

/* #define WORD_MACHINE */

/* Now define a symbol for the cpu type, if your compiler
   does not define it automatically:
   Ones defined so far include vax, m68000, ns16000, pyramid,
   orion, tahoe, APOLLO and many others */

/* Use type EMACS_INT rather than a union, to represent Lisp_Object */
/* This is desirable for most machines.  */

#define NO_UNION_TYPE

/* Data type of load average, as read out of kmem.  */

#define LOAD_AVE_TYPE long

/* Convert that into an integer that is 100 for a load average of 1.0  */

#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)

/* Some really obscure 4.2-based systems (like Sequent DYNIX)
 * do not support asynchronous I/O (using SIGIO) on sockets,
 * even though it works fine on tty's.  If you have one of
 * these systems, define the following, and then use it in
 * config.h (or elsewhere) to decide when (not) to use SIGIO.
 *
 * You'd think this would go in an operating-system description file,
 * but since it only occurs on some, but not all, BSD systems, the
 * reasonable place to select for it is in the machine description
 * file.
 */

/* #define NO_SOCK_SIGIO */

#define UNEXEC unexelf.o

#define NO_TERMIO

#if defined (LINUX) || defined (__NetBSD__) || defined (__OpenBSD__)
# define TEXT_END ({ extern int _etext; &_etext; })
#endif

#if (defined (__NetBSD__) || defined (__OpenBSD__)) && defined (__ELF__)
#define HAVE_TEXT_START
#endif

/* NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says this is needed
   For MkLinux/LinuxPPC.  */

#ifdef LINUX
#define LINKER $(CC) -nostdlib
/* s/gnu-linux.h defines this to `-z nocombreloc' which does not work here
   because prefix-args is not used.  */
#undef LD_SWITCH_SYSTEM_TEMACS
#define LD_SWITCH_MACHINE_TEMACS -Xlinker -znocombreloc
#ifdef _ARCH_PPC64
#undef START_FILES
#define START_FILES pre-crt0.o /usr/lib64/crt1.o /usr/lib64/crti.o
#undef LIB_STANDARD
#define LIB_STANDARD -lgcc -lc -lgcc /usr/lib64/crtn.o
#endif
#endif

#if 0  /* This breaks things on PPC GNU/Linux ecept for Yellowdog,
	  even with identical GCC, as, ld.  Let's take it out until we
	  know what's really going on here.  */
/* GCC 2.95 and newer on GNU/Linux PPC changed the load address to
   0x10000000.  */
#if defined __linux__
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
#define DATA_SEG_BITS  0x10000000
#endif
#endif
#endif /* 0 */

#ifdef _ARCH_PPC64
#ifndef _LP64
#define _LP64
#endif
#endif

/* arch-tag: 41913e4e-e7d1-4023-aadb-210cc31712ed
   (do not change this comment) */