1 /* Machine description file for digital/intel arm/strongarm
2 Copyright (C) 1987 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with XEmacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* Synched up with: FSF 19.31. */
23 /* Now define a symbol for the cpu type, if your compiler
24 does not define it automatically:
25 Ones defined so far include vax, m68000, ns16000, pyramid,
26 orion, tahoe, APOLLO and many others */
32 /* crt0.c, if it is used, should use the i386-bsd style of entry.
33 with no extra dummy args. On USG and XENIX,
34 NO_REMAP says this isn't used. */
36 /* Mly 16-Jan-96 16:38:32: this is part of a prototype -- same bug present in
38 #define CRT0_DUMMIES int bogus_fp,
40 /* crt0.c should define a symbol `start' and do .globl with a dot. */
42 #define DOT_GLOBAL_START
44 #ifdef USG5_4 /* Older USG systems do not support the load average. */
45 /* Data type of load average, as read out of kmem. */
47 #define LOAD_AVE_TYPE long
49 /* Convert that into an integer that is 100 for a load average of 1.0 */
50 /* This is totally uncalibrated. */
53 /* FSHIFT and FSCALE are defined in param.h, but are required by
54 LOAD_AVE_CVT, so they need to be defined here. */
57 #define FSHIFT 8 /* bits to right of fixed binary point */
61 #define FSCALE (1<<FSHIFT)
64 #define LOAD_AVE_CVT(x) ((int) (((double) (x)) * 100.0 / FSCALE))
68 /* Define CANNOT_DUMP on machines where unexec does not work.
69 Then the function dump-emacs will not be defined
70 and temacs will do (load "loadup") automatically unless told otherwise. */
74 /* this brings in alloca() if we're using cc */
81 #define DATA_END get_data_end ()
82 #define DATA_START get_data_start ()
87 /* libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared library, */
88 /* we cannot get the maximum address for brk */
89 #define ULIMIT_BREAK_VALUE (32*1024*1024)
91 #define SEGMENT_MASK ((SEGMENT_SIZE)-1)
94 /* XEmacs change: John Hughes <john@AtlanTech.COM> says using vfork
95 under i386-unknown-sysv4.2 makes C-g sometimes cause a SIGSEGV
96 in TTY mode; the problem goes away if you use fork */