Mercurial > hg > truffle
diff src/os/posix/vm/os_posix.cpp @ 2204:63d374c54045
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 |
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date | Wed, 09 Feb 2011 11:08:10 +0100 |
parents | |
children | da091bb67459 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/os/posix/vm/os_posix.cpp Wed Feb 09 11:08:10 2011 +0100 @@ -0,0 +1,61 @@ +/* +* Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. +* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. +* +* This code is free software; you can redistribute it and/or modify it +* under the terms of the GNU General Public License version 2 only, as +* published by the Free Software Foundation. +* +* This code is distributed in the hope that it will be useful, but WITHOUT +* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +* version 2 for more details (a copy is included in the LICENSE file that +* accompanied this code). +* +* You should have received a copy of the GNU General Public License version +* 2 along with this work; if not, write to the Free Software Foundation, +* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. +* +* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA +* or visit www.oracle.com if you need additional information or have any +* questions. +* +*/ + +#include "prims/jvm.h" +#include "runtime/os.hpp" +#include "utilities/vmError.hpp" + +#include <unistd.h> +#include <sys/resource.h> + +// Check core dump limit and report possible place where core can be found +void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) { + struct rlimit rlim; + static char cwd[O_BUFLEN]; + bool success; + + get_current_directory(cwd, sizeof(cwd)); + + if (getrlimit(RLIMIT_CORE, &rlim) != 0) { + jio_snprintf(buffer, bufferSize, "%s/core or core.%d (may not exist)", cwd, current_process_id()); + success = true; + } else { + switch(rlim.rlim_cur) { + case RLIM_INFINITY: + jio_snprintf(buffer, bufferSize, "%s/core or core.%d", cwd, current_process_id()); + success = true; + break; + case 0: + jio_snprintf(buffer, bufferSize, "Core dumps have been disabled. To enable core dumping, try \"ulimit -c unlimited\" before starting Java again"); + success = false; + break; + default: + 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)); + success = true; + break; + } + } + VMError::report_coredump_status(buffer, success); +} +