|
0
|
1 /* Includes for memory limit warnings.
|
|
|
2 Copyright (C) 1990, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
|
|
|
3
|
|
|
4 This file is part of XEmacs.
|
|
|
5
|
|
|
6 XEmacs is free software; you can redistribute it and/or modify it
|
|
|
7 under the terms of the GNU General Public License as published by the
|
|
|
8 Free Software Foundation; either version 2, or (at your option) any
|
|
|
9 later version.
|
|
|
10
|
|
|
11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
|
|
|
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
14 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 19.30. */
|
|
|
22
|
|
243
|
23 /* #### This ancient code really sucks.
|
|
|
24 configure should check for:
|
|
|
25 HAVE_SYS_RESOURCE_H, HAVE_ULIMIT_H, HAVE_GETRLIMIT, HAVE_ULIMIT,
|
|
|
26 and select action based on those values.
|
|
|
27 getrlimit() should be preferred to ulimit().
|
|
|
28 On Linux, ulimit() is deprecated and always returns -1. */
|
|
|
29
|
|
398
|
30 #ifndef INCLUDED_mem_limits_h_
|
|
|
31 #define INCLUDED_mem_limits_h_
|
|
0
|
32
|
|
169
|
33 #ifdef HAVE_CONFIG_H
|
|
|
34 #include <config.h>
|
|
|
35 #endif
|
|
|
36
|
|
|
37 #ifdef HAVE_ULIMIT_H
|
|
|
38 #include <ulimit.h>
|
|
|
39 #endif
|
|
|
40
|
|
0
|
41 /* Some systems need this before <sys/resource.h>. */
|
|
|
42 #include <sys/types.h>
|
|
|
43
|
|
|
44 #ifdef _LIBC
|
|
|
45
|
|
|
46 #include <sys/resource.h>
|
|
|
47 #define BSD4_2 /* Tell code below to use getrlimit. */
|
|
|
48
|
|
|
49 /* Old Linux startup code won't define __data_start. */
|
|
|
50 extern int etext, __data_start; weak_symbol (__data_start)
|
|
|
51 #define start_of_data() (&__data_start ?: &etext)
|
|
|
52
|
|
243
|
53 #else /* not GNU libc */
|
|
0
|
54
|
|
|
55 #if defined (__osf__) && (defined (__mips) || defined (mips) || defined (__alpha))
|
|
|
56 #include <sys/time.h>
|
|
|
57 #include <sys/resource.h>
|
|
|
58 #endif
|
|
|
59
|
|
286
|
60 #if defined(__bsdi__) || defined(__NetBSD__) || defined(__linux__) || defined(__OpenBSD__)
|
|
276
|
61 #if defined(__linux__) && defined (powerpc) /*Added by Fukui*/
|
|
|
62 #else /*Added by Fukui*/
|
|
0
|
63 #define BSD4_2
|
|
276
|
64 #endif /*Added by Fukui*/
|
|
0
|
65 #endif
|
|
|
66
|
|
|
67 #ifndef BSD4_2
|
|
|
68 #ifndef USG
|
|
410
|
69 #ifndef WIN32_NATIVE
|
|
|
70 #ifndef CYGWIN
|
|
276
|
71 #if defined(__linux__) && defined(powerpc) /*Added Kaoru Fukui*/
|
|
|
72 #else /*Added Kaoru Fukui*/
|
|
0
|
73 #include <sys/vlimit.h>
|
|
276
|
74 #endif /*Added by Fukui*/
|
|
410
|
75 #endif /* not CYGWIN */
|
|
|
76 #endif /* not WIN32_NATIVE */
|
|
0
|
77 #endif /* not USG */
|
|
|
78 #else /* if BSD4_2 */
|
|
|
79 #include <sys/time.h>
|
|
|
80 #include <sys/resource.h>
|
|
|
81 #endif /* BSD4_2 */
|
|
|
82
|
|
|
83 #ifdef emacs
|
|
|
84 /* The important properties of this type are that 1) it's a pointer, and
|
|
|
85 2) arithmetic on it should work as if the size of the object pointed
|
|
|
86 to has a size of 1. */
|
|
|
87 #ifdef __STDC__
|
|
|
88 typedef void *POINTER;
|
|
|
89 #else
|
|
|
90 typedef char *POINTER;
|
|
|
91 #endif
|
|
|
92
|
|
410
|
93 #ifndef CYGWIN
|
|
0
|
94 typedef unsigned long SIZE;
|
|
231
|
95 #endif
|
|
0
|
96
|
|
394
|
97 extern POINTER start_of_data (void);
|
|
398
|
98 #define EXCEEDS_LISP_PTR(ptr) 0
|
|
0
|
99
|
|
|
100 #ifdef BSD
|
|
|
101 extern int etext;
|
|
|
102 #define start_of_data() &etext
|
|
|
103 #endif
|
|
|
104
|
|
272
|
105 #else /* not emacs */
|
|
0
|
106 extern char etext;
|
|
|
107 #define start_of_data() &etext
|
|
|
108 #endif /* not emacs */
|
|
|
109
|
|
|
110 #endif /* not _LIBC */
|
|
|
111
|
|
272
|
112
|
|
0
|
113
|
|
|
114 /* start of data space; can be changed by calling malloc_init */
|
|
|
115 static POINTER data_space_start;
|
|
|
116
|
|
|
117 /* Number of bytes of writable memory we can expect to be able to get */
|
|
|
118 extern unsigned int lim_data;
|
|
|
119
|
|
404
|
120 #if defined (HEAP_IN_DATA) && !defined(PDUMP)
|
|
251
|
121 extern unsigned long static_heap_size;
|
|
|
122 extern int initialized;
|
|
|
123 static void
|
|
|
124 get_lim_data (void)
|
|
|
125 {
|
|
|
126 if (!initialized)
|
|
|
127 {
|
|
272
|
128 lim_data = (unsigned int) -1; /* static_heap_size; */
|
|
251
|
129 }
|
|
|
130 else
|
|
|
131 {
|
|
272
|
132 lim_data = (unsigned int) -1;
|
|
251
|
133 }
|
|
|
134 }
|
|
|
135 #else
|
|
0
|
136 #ifdef NO_LIM_DATA
|
|
|
137 static void
|
|
74
|
138 get_lim_data (void)
|
|
0
|
139 {
|
|
272
|
140 lim_data = (unsigned int) -1;
|
|
0
|
141 }
|
|
|
142 #else /* not NO_LIM_DATA */
|
|
|
143
|
|
|
144 #ifdef USG
|
|
|
145
|
|
|
146 static void
|
|
74
|
147 get_lim_data (void)
|
|
0
|
148 {
|
|
272
|
149 lim_data = (unsigned int) -1;
|
|
0
|
150
|
|
|
151 /* Use the ulimit call, if we seem to have it. */
|
|
|
152 #if !defined (ULIMIT_BREAK_VALUE) || defined (LINUX)
|
|
|
153 lim_data = ulimit (3, 0);
|
|
|
154 #endif
|
|
|
155
|
|
|
156 /* If that didn't work, just use the macro's value. */
|
|
|
157 #ifdef ULIMIT_BREAK_VALUE
|
|
272
|
158 if (lim_data == (unsigned int) -1)
|
|
0
|
159 lim_data = ULIMIT_BREAK_VALUE;
|
|
|
160 #endif
|
|
|
161
|
|
|
162 lim_data -= (long) data_space_start;
|
|
|
163 }
|
|
|
164
|
|
|
165 #else /* not USG */
|
|
410
|
166 #if defined( WIN32_NATIVE )
|
|
0
|
167
|
|
|
168 static void
|
|
74
|
169 get_lim_data (void)
|
|
0
|
170 {
|
|
|
171 extern unsigned long data_region_size;
|
|
|
172 lim_data = data_region_size;
|
|
|
173 }
|
|
|
174
|
|
|
175 #else
|
|
|
176 #if !defined (BSD4_2) && !defined (__osf__)
|
|
|
177
|
|
|
178 static void
|
|
74
|
179 get_lim_data (void)
|
|
0
|
180 {
|
|
|
181 lim_data = vlimit (LIM_DATA, -1);
|
|
|
182 }
|
|
|
183
|
|
|
184 #else /* BSD4_2 */
|
|
|
185
|
|
|
186 static void
|
|
74
|
187 get_lim_data (void)
|
|
0
|
188 {
|
|
|
189 struct rlimit XXrlimit;
|
|
|
190
|
|
|
191 getrlimit (RLIMIT_DATA, &XXrlimit);
|
|
|
192 #ifdef RLIM_INFINITY
|
|
|
193 lim_data = XXrlimit.rlim_cur & RLIM_INFINITY; /* soft limit */
|
|
|
194 #else
|
|
|
195 lim_data = XXrlimit.rlim_cur; /* soft limit */
|
|
|
196 #endif
|
|
|
197 }
|
|
|
198 #endif /* BSD4_2 */
|
|
410
|
199 #endif /* not WIN32_NATIVE */
|
|
0
|
200 #endif /* not USG */
|
|
|
201 #endif /* not NO_LIM_DATA */
|
|
251
|
202 #endif /* not HEAP_IN_DATA */
|
|
0
|
203
|
|
398
|
204 #endif /* INCLUDED_mem_limits_h_ */
|
