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comparison src/m/sparc.h @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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children ac2d302a0011
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-1:000000000000 0:376386a54a3c
1 /* machine description file for Sun 4 SPARC.
2 Copyright (C) 1987, 1994 Free Software Foundation, Inc.
3
4 This file is part of GNU Emacs.
5
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)
9 any later version.
10
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.
15
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. */
20
21 /* Synched up with: FSF 19.31. */
22
23 /* The following line tells the configuration script what sort of
24 operating system this machine is likely to run.
25 USUAL-OPSYS="note"
26
27 NOTE-START
28 Use -opsystem=sunos4 for operating system version 4, and
29 -opsystem=bsd4-2 for earlier versions.
30 NOTE-END */
31
32 /* XEmacs change */
33 /* Say this machine is a sparc if we are not generating the Makefiles.
34 In that case say we are a SPARC. Otherwise people who have sparc
35 in a path will not be happy. */
36
37 #ifdef NOT_C_CODE
38 # define SPARC
39 #else
40 # ifndef sparc
41 # define sparc
42 # endif
43 #endif
44
45 #ifdef __GNUC__
46 # define C_OPTIMIZE_SWITCH -O
47 #else
48 /* XEmacs change */
49 # ifdef USE_LCC
50 # define C_OPTIMIZE_SWITCH -O4 -Oi
51 # else
52 /* This level of optimization is reported to work. */
53 # define C_OPTIMIZE_SWITCH -O2
54 # endif
55 #endif
56
57 /* XINT must explicitly sign-extend */
58
59 #define EXPLICIT_SIGN_EXTEND
60
61 /* Data type of load average, as read out of kmem. */
62
63 #define LOAD_AVE_TYPE long
64
65 /* Convert that into an integer that is 100 for a load average of 1.0 */
66
67 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
68
69 /* Define C_ALLOCA if this machine does not support a true alloca
70 and the one written in C should be used instead.
71 Define HAVE_ALLOCA to say that the system provides a properly
72 working alloca function and it should be used.
73 Define neither one if an assembler-language alloca
74 in the file alloca.s should be used. */
75
76 #define HAVE_ALLOCA
77 #ifndef NOT_C_CODE
78 #if __GNUC__ < 2 /* Modern versions of GCC handle alloca directly. */
79 #include <alloca.h>
80 #endif
81 #endif
82
83 /* Solaris defines alloca to __builtin_alloca & does not provide a prototype */
84 #ifdef __SUNPRO_C
85 # ifndef NOT_C_CODE
86 # include <alloca.h>
87 void *__builtin_alloca (unsigned int);
88 # endif
89 #endif
90
91 /* Must use the system's termcap, if we use any termcap.
92 It does special things. */
93
94 #ifndef TERMINFO
95 #define LIBS_TERMCAP -ltermcap
96 #endif
97
98 /* Mask for address bits within a memory segment */
99
100 #define SEGMENT_MASK (SEGSIZ - 1)
101
102 /* Arrange to link with sun windows, if requested. */
103 /* For details on emacstool and sunfns, see etc/SUN-SUPPORT */
104 /* These programs require Sun UNIX 4.2 Release 3.2 or greater */
105
106 #ifdef HAVE_SUN_WINDOWS
107 #define OTHER_FILES ${etcdir}emacstool
108 #define LIBS_MACHINE -lsuntool -lsunwindow -lpixrect
109 #define OBJECTS_MACHINE sunfns.o
110 #define SYMS_MACHINE syms_of_sunfns ()
111 #define SYSTEM_PURESIZE_EXTRA 10000
112 #endif
113
114 #ifndef __NetBSD__
115 #ifndef __linux__
116 /* This really belongs in s/sun.h. */
117
118 /* Say that the text segment of a.out includes the header;
119 the header actually occupies the first few bytes of the text segment
120 and is counted in hdr.a_text. */
121
122 #define A_TEXT_OFFSET(HDR) sizeof (HDR)
123
124 /* This is the offset of the executable's text, from the start of the file. */
125
126 #define A_TEXT_SEEK(HDR) (N_TXTOFF (hdr) + sizeof (hdr))
127
128 #endif /* __linux__ */
129 #endif /* __NetBSD__ */