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comparison src/os/posix/vm/os_posix.cpp @ 2204:63d374c54045

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7014918: Improve core/minidump handling in Hotspot Summary: Added Minidump support on Windows, enabled large page core dumps when coredump_filter is present and writing out path/rlimit for core dumps. Reviewed-by: poonam, dsamersoff, sla, coleenp
author ctornqvi
date Wed, 09 Feb 2011 11:08:10 +0100
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children da091bb67459
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2203:5197f3d713a1 2204:63d374c54045
1 /*
2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "prims/jvm.h"
26 #include "runtime/os.hpp"
27 #include "utilities/vmError.hpp"
28
29 #include <unistd.h>
30 #include <sys/resource.h>
31
32 // Check core dump limit and report possible place where core can be found
33 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) {
34 struct rlimit rlim;
35 static char cwd[O_BUFLEN];
36 bool success;
37
38 get_current_directory(cwd, sizeof(cwd));
39
40 if (getrlimit(RLIMIT_CORE, &rlim) != 0) {
41 jio_snprintf(buffer, bufferSize, "%s/core or core.%d (may not exist)", cwd, current_process_id());
42 success = true;
43 } else {
44 switch(rlim.rlim_cur) {
45 case RLIM_INFINITY:
46 jio_snprintf(buffer, bufferSize, "%s/core or core.%d", cwd, current_process_id());
47 success = true;
48 break;
49 case 0:
50 jio_snprintf(buffer, bufferSize, "Core dumps have been disabled. To enable core dumping, try \"ulimit -c unlimited\" before starting Java again");
51 success = false;
52 break;
53 default:
54 jio_snprintf(buffer, bufferSize, "%s/core or core.%d (max size %lu kB). To ensure a full core dump, try \"ulimit -c unlimited\" before starting Java again", cwd, current_process_id(), (unsigned long)(rlim.rlim_cur >> 10));
55 success = true;
56 break;
57 }
58 }
59 VMError::report_coredump_status(buffer, success);
60 }
61