1 /* Machine description file for digital/intel arm/strongarm
2 Copyright (C) 1987 Free Software Foundation, Inc.
4 This file is part of SXEmacs
6 SXEmacs 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 3 of the License, or
9 (at your option) any later version.
11 SXEmacs 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 this program. If not, see <http://www.gnu.org/licenses/>. */
20 /* Synched up with: FSF 19.31. */
22 /* Now define a symbol for the cpu type, if your compiler
23 does not define it automatically:
24 Ones defined so far include vax, m68000, ns16000, pyramid,
25 orion, tahoe, APOLLO and many others */
31 /* crt0.c, if it is used, should use the i386-bsd style of entry.
32 with no extra dummy args. On USG and XENIX,
33 NO_REMAP says this isn't used. */
35 /* Mly 16-Jan-96 16:38:32: this is part of a prototype -- same bug present in
37 #define CRT0_DUMMIES int bogus_fp,
39 /* crt0.c should define a symbol `start' and do .globl with a dot. */
41 #define DOT_GLOBAL_START
43 #ifdef USG5_4 /* Older USG systems do not support the load average. */
44 /* Data type of load average, as read out of kmem. */
46 #define LOAD_AVE_TYPE long
48 /* Convert that into an integer that is 100 for a load average of 1.0 */
49 /* This is totally uncalibrated. */
51 /* FSHIFT and FSCALE are defined in param.h, but are required by
52 LOAD_AVE_CVT, so they need to be defined here. */
55 #define FSHIFT 8 /* bits to right of fixed binary point */
59 #define FSCALE (1<<FSHIFT)
62 #define LOAD_AVE_CVT(x) ((int) (((double) (x)) * 100.0 / FSCALE))
65 /* Define CANNOT_DUMP on machines where unexec does not work.
66 Then the function dump-emacs will not be defined
67 and temacs will do (load "loadup") automatically unless told otherwise. */
71 /* this brings in alloca() if we're using cc */
79 /* libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared library, */
80 /* we cannot get the maximum address for brk */
81 #define ULIMIT_BREAK_VALUE (32*1024*1024)
83 #define SEGMENT_MASK ((SEGMENT_SIZE)-1)
86 /* XEmacs change: John Hughes <john@AtlanTech.COM> says using vfork
87 under i386-unknown-sysv4.2 makes C-g sometimes cause a SIGSEGV
88 in TTY mode; the problem goes away if you use fork */