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225 lines
6.1 KiB
C
225 lines
6.1 KiB
C
/* m- file for Mips machines.
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Copyright (C) 1987, 1992 Free Software Foundation, Inc.
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This file is part of GNU Emacs.
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GNU Emacs is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* The following line tells the configuration script what sort of
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operating system this machine is likely to run.
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USUAL-OPSYS="note"
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NOTE-START
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Use m-mips4.h for RISCOS version 4; use s-bsd4-3.h with the BSD world.
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Note that the proper m- file for the Decstation is m-pmax.h.
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NOTE-END */
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/* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
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is the most significant byte. */
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#define WORDS_BIG_ENDIAN
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/* Define NO_ARG_ARRAY if you cannot take the address of the first of a
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* group of arguments and treat it as an array of the arguments. */
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#define NO_ARG_ARRAY
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/* Define WORD_MACHINE if addresses and such have
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* to be corrected before they can be used as byte counts. */
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#undef WORD_MACHINE
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/* Define how to take a char and sign-extend into an int.
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On machines where char is signed, this is a no-op. */
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#define SIGN_EXTEND_CHAR(c) ((signed char)(c))
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/* Now define a symbol for the cpu type, if your compiler
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does not define it automatically:
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Ones defined so far include vax, m68000, ns16000, pyramid,
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orion, tahoe, APOLLO and many others */
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#ifndef mips
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# define mips
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#endif
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/* Use type int rather than a union, to represent Lisp_Object */
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/* This is desirable for most machines. */
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#define NO_UNION_TYPE
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/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
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the 24-bit bit field into an int. In other words, if bit fields
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are always unsigned.
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If you use NO_UNION_TYPE, this flag does not matter. */
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#define EXPLICIT_SIGN_EXTEND
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/* Data type of load average, as read out of kmem. */
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#define LOAD_AVE_TYPE long
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/* Convert that into an integer that is 100 for a load average of 1.0 */
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#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / 256.0)
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/* CDC EP/IX 1.4.3 uses /unix */
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#undef KERNEL_FILE
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#define KERNEL_FILE "/unix"
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/* Define CANNOT_DUMP on machines where unexec does not work.
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Then the function dump-emacs will not be defined
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and temacs will do (load "loadup") automatically unless told otherwise. */
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#undef CANNOT_DUMP
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/* Define VIRT_ADDR_VARIES if the virtual addresses of
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pure and impure space as loaded can vary, and even their
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relative order cannot be relied on.
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Otherwise Emacs assumes that text space precedes data space,
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numerically. */
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/* #define VIRT_ADDR_VARIES */
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/* Define C_ALLOCA if this machine does not support a true alloca
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and the one written in C should be used instead.
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Define HAVE_ALLOCA to say that the system provides a properly
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working alloca function and it should be used.
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Define neither one if an assembler-language alloca
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in the file alloca.s should be used. */
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#ifdef __GNUC__
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#define HAVE_ALLOCA
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#else
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#define C_ALLOCA
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#endif
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/* Define NO_REMAP if memory segmentation makes it not work well
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to change the boundary between the text section and data section
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when Emacs is dumped. If you define this, the preloaded Lisp
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code will not be sharable; but that's better than failing completely. */
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#define NO_REMAP
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/* This machine requires completely different unexec code
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which lives in a separate file. Specify the file name. */
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#undef UNEXEC
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#define UNEXEC unexmips.o
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/* Describe layout of the address space in an executing process. */
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#define TEXT_START 0x400000
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#define DATA_START 0x800000
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/* Alter some of the options used when linking. */
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#ifndef NEWSOS5
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#ifdef BSD_SYSTEM
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/* DECstations don't have this library.
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#define LIBS_MACHINE -lmld */
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#define LD_SWITCH_MACHINE -D 800000
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#define LIBS_DEBUG
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#define LINKER /bsd43/bin/ld
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#else /* not BSD_SYSTEM */
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#if defined(__GNUC__) && defined(_ABIN32)
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#define LIBS_MACHINE
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#else
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#define LIBS_MACHINE -lmld
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#endif
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#define LD_SWITCH_MACHINE -D 800000 -g3
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#define START_FILES pre-crt0.o /usr/lib/crt1.o
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#define LIB_STANDARD -lbsd -lc /usr/lib/crtn.o
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#define LIBS_TERMCAP -lcurses
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#define C_SWITCH_MACHINE -I/usr/include/bsd
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#define C_DEBUG_SWITCH -O -g3
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#if defined(HAVE_X_WINDOWS) && defined(HAVE_X11)
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#define HAVE_VFORK /* Graciously provided by libX.a */
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#endif
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#endif /* not BSD_SYSTEM */
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#endif /* not NEWSOS5 */
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/* The standard definitions of these macros would work ok,
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but these are faster because the constants are short. */
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#define XUINT(a) (((unsigned)(a) << (BITS_PER_INT-VALBITS)) >> (BITS_PER_INT-VALBITS))
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#define XSET(var, type, ptr) \
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((var) = \
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((int)(type) << VALBITS) \
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+ (((unsigned) (ptr) << (BITS_PER_INT-VALBITS)) >> (BITS_PER_INT-VALBITS)))
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#define XUNMARK(a) \
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((a) = \
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(((unsigned)(a) << (BITS_PER_INT-GCTYPEBITS-VALBITS)) \
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>> (BITS_PER_INT-GCTYPEBITS-VALBITS)))
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#ifndef NEWSOS5
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#ifdef USG
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/* Cancel certain parts of standard sysV support. */
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#undef NONSYSTEM_DIR_LIBRARY
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#define SYSV_SYSTEM_DIR
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#undef static
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/* Don't try to use SIGIO or FIONREAD even though they are defined. */
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#undef SIGIO
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#define BROKEN_FIONREAD
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/* Describe special kernel features. */
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#define HAVE_SYSVIPC
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#if defined(emacs) && !defined(INHIBIT_BSD_TIME)
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#include <bsd/sys/time.h>
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#endif
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/* The `select' in the system won't work for pipes, so don't use it. */
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#undef HAVE_SELECT /* override configuration decision */
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#define HAVE_GETWD
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#define HAVE_GETTIMEOFDAY
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#define HAVE_PTYS
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#define HAVE_SOCKETS
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#undef NOMULTIPLEJOBS
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/* ??? */
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#define IRIS
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#endif /* USG */
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#ifdef BSD_SYSTEM
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#define COFF
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#define TERMINFO
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#undef MAIL_USE_FLOCK /* Someone should check this. */
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#undef HAVE_UNION_WAIT
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#endif /* BSD_SYSTEM */
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#endif /* not NEWSOS5 */
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