/* machine description file For the powerpc Macintosh. Copyright (C) 1994, 2001 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 1, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Define WORDS_BIG_ENDIAN iff 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) /* Define C_ALLOCA if this machine does not support a true alloca and the one written in C should be used instead. Define HAVE_ALLOCA to say that the system provides a properly working alloca function and it should be used. Define neither one if an assembler-language alloca in the file alloca.s should be used. */ #define HAVE_ALLOCA /* 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 */ #if defined(__OpenBSD__) #define ORDINARY_LINK #endif #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 #define LD_SWITCH_MACHINE -Xlinker -m -Xlinker elf32ppc /* 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 #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 */