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 62 bool os::is_debugger_present() { 63 // not implemented 64 return false; 65 } 66 67 void os::check_for_debugger_and_wait(void) { 68 // don't do anything on posix platforms 69 return; 70 }