/* Machine description file for intel 386.
- Copyright (C) 1987 Free Software Foundation, Inc.
+ Copyright (C) 1987, 2002 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)
+the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Emacs is distributed in the hope that it will be useful,
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
-/* The following line tells the configuration script what sort of
+/* The following line tells the configuration script what sort of
operating system this machine is likely to run.
USUAL-OPSYS="note"
Intel 386 (-machine=intel386 or -machine=is386.h)
The possibilities for -opsystem are: bsd4-2, usg5-2-2, usg5-3,
- isc2-2, 386-ix, esix, or xenix.
+ isc2-2, 386-ix, esix, linux, sco3.2v4, and xenix.
18.58 should support a wide variety of operating systems.
Use isc2-2 for Interactive 386/ix version 2.2.
Use 386ix for prior versions.
- Use esix for Esix. It isn't clear what to do on an SCO system.
+ Use esix for Esix.
+ Use linux for Linux.
+ It isn't clear what to do on an SCO system.
-machine=is386 is used for an Integrated Solutions 386 machine.
It may also be correct for Microport systems.
Minor changes merged in 19.1.
NOTE-END */
-/* The following three symbols give information on
- the size of various data types. */
+/* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
+ is the most significant byte. */
-#define SHORTBITS 16 /* Number of bits in a short */
-
-#define INTBITS 32 /* Number of bits in an int */
-
-#define LONGBITS 32 /* Number of bits in a long */
-
-/* i386 is not big-endian: lowest numbered byte is least significant. */
-
-/* #undef BIG_ENDIAN */
+#undef 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. */
/* Convert that into an integer that is 100 for a load average of 1.0 */
#define LOAD_AVE_CVT(x) (((double) (x)) * 100.0 / FSCALE)
-
+
#define FSCALE 256.0 /* determined by experimentation... */
#endif
+
+#ifdef SOLARIS2
+/* 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 */
+/* This is totally uncalibrated. */
+#define LOAD_AVE_CVT(x) ((int) (((double) (x)) * 100.0 / FSCALE))
+
+/* J.W.Hawtin@lut.ac.uk say Solaris 2.4 as well as Solaris 2.1 on X86
+ requires -lkvm as well.
+ And handa@etl.gov.jp says that -lkvm needs -llelf, at least on 2.5. */
+#define LIBS_MACHINE -lkvm -lelf
+
+#ifndef SOLARIS2_4
+/* J.W.hawtin@lut.ac.uk says Solaris 2.1 on the X86 has FSCALE defined in a
+ system header. */
+#else /* SOLARIS2_4 */
+#ifndef __GNUC__
+#if 0 /* wisner@gryphon.com says this screws up cpp */
+#define C_SWITCH_MACHINE -Xa
+#endif
+#endif /* not __GNUC__ */
+#endif /* SOLARIS2_4 */
+
+/* configure thinks solaris X86 has gethostname, but it does not work,
+ so undefine it. */
+#undef HAVE_GETHOSTNAME
+
+#else /* not SOLARIS2 */
#ifdef USG5_4 /* Older USG systems do not support the load average. */
/* Data type of load average, as read out of kmem. */
#define LOAD_AVE_CVT(x) ((int) (((double) (x)) * 100.0 / FSCALE))
#define FSCALE 256.0
#endif
+#endif /* not SOLARIS2 */
/* Define CANNOT_DUMP on machines where unexec does not work.
Then the function dump-emacs will not be defined
/* #define VIRT_ADDR_VARIES */
#ifdef XENIX
-#define VALBITS 26
-#define GCTYPEBITS 5
-
/* Define NO_REMAP if memory segmentation makes it not work well
to change the boundary between the text section and data section
when Emacs is dumped. If you define this, the preloaded Lisp
#define NO_REMAP
-#define STACK_DIRECTION -1
-
/* Since cannot purify, use standard Xenix 386 startup code. */
#define START_FILES /lib/386/Sseg.o pre-crt0.o /lib/386/Scrt0.o
#endif /* not USG5_4 */
#endif /* LIB_STANDARD */
-#define HAVE_ALLOCA
-#define NO_REMAP
+#define NO_REMAP
#define TEXT_START 0
-#endif /* not USG */
+#endif /* USG */
#endif /* not XENIX */
-#ifdef BSD
-#define HAVE_ALLOCA
-#endif /* BSD */
+#ifdef USG5_4
+#define DATA_SEG_BITS 0x08000000
+#endif
+
+#ifdef MSDOS
+#define NO_REMAP
+#endif
-/* If compiling with GCC, let GCC implement alloca. */
-#if defined(__GNUC__) && !defined(alloca)
-#define alloca(n) __builtin_alloca(n)
-#define HAVE_ALLOCA
+#ifdef WINDOWSNT
+#define VIRT_ADDR_VARIES
+#define DATA_END get_data_end ()
+#define DATA_START get_data_start ()
+#define NO_ARG_ARRAY
#endif
-#ifdef USG5_4
-#define DATA_SEG_BITS 0x08000000
+#ifdef linux
+/* libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared library, */
+/* we cannot get the maximum address for brk */
+#define ULIMIT_BREAK_VALUE (32*1024*1024)
+
+#define SEGMENT_MASK ((SEGMENT_SIZE)-1)
#endif
+
+/* arch-tag: 746338f0-cb7b-4f49-a98c-cb50817cf2ec
+ (do not change this comment) */
HCoop / bpt / emacs.git / blobdiff