|
428
|
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
|
|
|
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
|
|
440
|
30 #ifndef INCLUDED_mem_limits_h_
|
|
|
31 #define INCLUDED_mem_limits_h_
|
|
428
|
32
|
|
|
33 #ifdef HAVE_CONFIG_H
|
|
|
34 #include <config.h>
|
|
|
35 #endif
|
|
|
36
|
|
|
37 #ifdef HAVE_ULIMIT_H
|
|
|
38 #include <ulimit.h>
|
|
|
39 #endif
|
|
|
40
|
|
|
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
|
|
|
53 #else /* not GNU libc */
|
|
|
54
|
|
|
55 #if defined (__osf__) && (defined (__mips) || defined (mips) || defined (__alpha))
|
|
|
56 #include <sys/time.h>
|
|
|
57 #include <sys/resource.h>
|
|
|
58 #endif
|
|
|
59
|
|
|
60 #if defined(__bsdi__) || defined(__NetBSD__) || defined(__linux__) || defined(__OpenBSD__)
|
|
|
61 #if defined(__linux__) && defined (powerpc) /*Added by Fukui*/
|
|
|
62 #else /*Added by Fukui*/
|
|
|
63 #define BSD4_2
|
|
|
64 #endif /*Added by Fukui*/
|
|
|
65 #endif
|
|
|
66
|
|
|
67 #ifndef BSD4_2
|
|
|
68 #ifndef USG
|
|
442
|
69 #ifndef WIN32_NATIVE
|
|
|
70 #ifndef CYGWIN
|
|
428
|
71 #if defined(__linux__) && defined(powerpc) /*Added Kaoru Fukui*/
|
|
|
72 #else /*Added Kaoru Fukui*/
|
|
|
73 #include <sys/vlimit.h>
|
|
|
74 #endif /*Added by Fukui*/
|
|
442
|
75 #endif /* not CYGWIN */
|
|
|
76 #endif /* not WIN32_NATIVE */
|
|
428
|
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 typedef void *POINTER;
|
|
|
85
|
|
442
|
86 #ifndef CYGWIN
|
|
428
|
87 typedef unsigned long SIZE;
|
|
|
88 #endif
|
|
|
89
|
|
|
90 extern POINTER start_of_data (void);
|
|
|
91 #define EXCEEDS_LISP_PTR(ptr) 0
|
|
|
92
|
|
|
93 #ifdef BSD
|
|
|
94 extern int etext;
|
|
|
95 #define start_of_data() &etext
|
|
|
96 #endif
|
|
|
97
|
|
|
98 #else /* not emacs */
|
|
|
99 extern char etext;
|
|
|
100 #define start_of_data() &etext
|
|
|
101 #endif /* not emacs */
|
|
|
102
|
|
|
103 #endif /* not _LIBC */
|
|
|
104
|
|
|
105
|
|
|
106
|
|
|
107 /* start of data space; can be changed by calling malloc_init */
|
|
|
108 static POINTER data_space_start;
|
|
|
109
|
|
|
110 /* Number of bytes of writable memory we can expect to be able to get */
|
|
|
111 extern unsigned int lim_data;
|
|
|
112
|
|
442
|
113 #if defined (HEAP_IN_DATA) && !defined(PDUMP)
|
|
428
|
114 extern unsigned long static_heap_size;
|
|
|
115 extern int initialized;
|
|
|
116 static void
|
|
|
117 get_lim_data (void)
|
|
|
118 {
|
|
|
119 if (!initialized)
|
|
|
120 {
|
|
|
121 lim_data = (unsigned int) -1; /* static_heap_size; */
|
|
|
122 }
|
|
|
123 else
|
|
|
124 {
|
|
|
125 lim_data = (unsigned int) -1;
|
|
|
126 }
|
|
|
127 }
|
|
|
128 #else
|
|
|
129 #ifdef NO_LIM_DATA
|
|
|
130 static void
|
|
|
131 get_lim_data (void)
|
|
|
132 {
|
|
|
133 lim_data = (unsigned int) -1;
|
|
|
134 }
|
|
|
135 #else /* not NO_LIM_DATA */
|
|
|
136
|
|
|
137 #ifdef USG
|
|
|
138
|
|
|
139 static void
|
|
|
140 get_lim_data (void)
|
|
|
141 {
|
|
|
142 lim_data = (unsigned int) -1;
|
|
|
143
|
|
|
144 /* Use the ulimit call, if we seem to have it. */
|
|
|
145 #if !defined (ULIMIT_BREAK_VALUE) || defined (LINUX)
|
|
|
146 lim_data = ulimit (3, 0);
|
|
|
147 #endif
|
|
|
148
|
|
|
149 /* If that didn't work, just use the macro's value. */
|
|
|
150 #ifdef ULIMIT_BREAK_VALUE
|
|
|
151 if (lim_data == (unsigned int) -1)
|
|
|
152 lim_data = ULIMIT_BREAK_VALUE;
|
|
|
153 #endif
|
|
|
154
|
|
|
155 lim_data -= (long) data_space_start;
|
|
|
156 }
|
|
|
157
|
|
|
158 #else /* not USG */
|
|
442
|
159 #if defined( WIN32_NATIVE )
|
|
428
|
160
|
|
|
161 static void
|
|
|
162 get_lim_data (void)
|
|
|
163 {
|
|
|
164 extern unsigned long data_region_size;
|
|
|
165 lim_data = data_region_size;
|
|
|
166 }
|
|
|
167
|
|
|
168 #else
|
|
|
169 #if !defined (BSD4_2) && !defined (__osf__)
|
|
|
170
|
|
|
171 static void
|
|
|
172 get_lim_data (void)
|
|
|
173 {
|
|
|
174 lim_data = vlimit (LIM_DATA, -1);
|
|
|
175 }
|
|
|
176
|
|
|
177 #else /* BSD4_2 */
|
|
|
178
|
|
|
179 static void
|
|
|
180 get_lim_data (void)
|
|
|
181 {
|
|
|
182 struct rlimit XXrlimit;
|
|
|
183
|
|
|
184 getrlimit (RLIMIT_DATA, &XXrlimit);
|
|
|
185 #ifdef RLIM_INFINITY
|
|
|
186 lim_data = XXrlimit.rlim_cur & RLIM_INFINITY; /* soft limit */
|
|
|
187 #else
|
|
|
188 lim_data = XXrlimit.rlim_cur; /* soft limit */
|
|
|
189 #endif
|
|
|
190 }
|
|
|
191 #endif /* BSD4_2 */
|
|
442
|
192 #endif /* not WIN32_NATIVE */
|
|
428
|
193 #endif /* not USG */
|
|
|
194 #endif /* not NO_LIM_DATA */
|
|
|
195 #endif /* not HEAP_IN_DATA */
|
|
|
196
|
|
440
|
197 #endif /* INCLUDED_mem_limits_h_ */
|
