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annotate src/os/posix/vm/os_posix.cpp @ 6080:7432b9db36ff

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7165755: OS Information much longer on linux than other platforms Reviewed-by: sla, dholmes
author nloodin
date Thu, 10 May 2012 15:44:19 +0200
parents b16494a69d3d
children d2a62e0f25eb
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1 /*
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2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "prims/jvm.h"
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26 #include "runtime/os.hpp"
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27 #include "utilities/vmError.hpp"
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28
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29 #include <unistd.h>
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30 #include <sys/resource.h>
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31 #include <sys/utsname.h>
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32
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33
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34 // Check core dump limit and report possible place where core can be found
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35 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) {
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36 struct rlimit rlim;
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37 static char cwd[O_BUFLEN];
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38 bool success;
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39
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40 get_current_directory(cwd, sizeof(cwd));
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41
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42 if (getrlimit(RLIMIT_CORE, &rlim) != 0) {
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43 jio_snprintf(buffer, bufferSize, "%s/core or core.%d (may not exist)", cwd, current_process_id());
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44 success = true;
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45 } else {
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46 switch(rlim.rlim_cur) {
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47 case RLIM_INFINITY:
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48 jio_snprintf(buffer, bufferSize, "%s/core or core.%d", cwd, current_process_id());
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49 success = true;
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50 break;
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51 case 0:
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52 jio_snprintf(buffer, bufferSize, "Core dumps have been disabled. To enable core dumping, try \"ulimit -c unlimited\" before starting Java again");
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53 success = false;
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54 break;
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55 default:
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56 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));
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57 success = true;
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58 break;
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59 }
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60 }
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61 VMError::report_coredump_status(buffer, success);
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62 }
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63
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64 int os::get_last_error() {
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65 return errno;
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66 }
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67
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68 bool os::is_debugger_attached() {
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69 // not implemented
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70 return false;
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71 }
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72
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73 void os::wait_for_keypress_at_exit(void) {
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74 // don't do anything on posix platforms
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75 return;
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76 }
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77
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78 void os::Posix::print_load_average(outputStream* st) {
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79 st->print("load average:");
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80 double loadavg[3];
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81 os::loadavg(loadavg, 3);
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82 st->print("%0.02f %0.02f %0.02f", loadavg[0], loadavg[1], loadavg[2]);
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83 st->cr();
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84 }
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85
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86 void os::Posix::print_rlimit_info(outputStream* st) {
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87 st->print("rlimit:");
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88 struct rlimit rlim;
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89
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90 st->print(" STACK ");
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91 getrlimit(RLIMIT_STACK, &rlim);
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92 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
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93 else st->print("%uk", rlim.rlim_cur >> 10);
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94
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95 st->print(", CORE ");
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96 getrlimit(RLIMIT_CORE, &rlim);
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97 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
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98 else st->print("%uk", rlim.rlim_cur >> 10);
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99
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100 //Isn't there on solaris
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101 #ifndef TARGET_OS_FAMILY_solaris
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102 st->print(", NPROC ");
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103 getrlimit(RLIMIT_NPROC, &rlim);
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104 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
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105 else st->print("%d", rlim.rlim_cur);
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106 #endif
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107
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108 st->print(", NOFILE ");
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109 getrlimit(RLIMIT_NOFILE, &rlim);
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110 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
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111 else st->print("%d", rlim.rlim_cur);
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112
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113 st->print(", AS ");
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114 getrlimit(RLIMIT_AS, &rlim);
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115 if (rlim.rlim_cur == RLIM_INFINITY) st->print("infinity");
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116 else st->print("%uk", rlim.rlim_cur >> 10);
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117 st->cr();
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118 }
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119
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120 void os::Posix::print_uname_info(outputStream* st) {
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121 // kernel
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122 st->print("uname:");
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123 struct utsname name;
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124 uname(&name);
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125 st->print(name.sysname); st->print(" ");
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126 st->print(name.release); st->print(" ");
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127 st->print(name.version); st->print(" ");
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128 st->print(name.machine);
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129 st->cr();
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130 }
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