mirror of
git://git.sv.gnu.org/emacs.git
synced 2026-01-30 12:21:25 -08:00
107 lines
3.4 KiB
C
107 lines
3.4 KiB
C
/* 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
|
|
#endif
|
|
|
|
/* 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
|