Mon, 03 Jan 2011 14:09:11 -0500
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
Summary: enhance the error reporting mechanism to help user to fix the problem rather than making it look like a VM error.
Reviewed-by: kvn, kamg
duke@435 | 1 | /* |
trims@1907 | 2 | * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_UTILITIES_VMERROR_HPP |
stefank@2314 | 26 | #define SHARE_VM_UTILITIES_VMERROR_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "utilities/globalDefinitions.hpp" |
stefank@2314 | 29 | |
duke@435 | 30 | |
duke@435 | 31 | class VM_ReportJavaOutOfMemory; |
duke@435 | 32 | |
duke@435 | 33 | class VMError : public StackObj { |
duke@435 | 34 | friend class VM_ReportJavaOutOfMemory; |
duke@435 | 35 | |
duke@435 | 36 | enum ErrorType { |
duke@435 | 37 | internal_error = 0xe0000000, |
duke@435 | 38 | oom_error = 0xe0000001 |
duke@435 | 39 | }; |
duke@435 | 40 | int _id; // Solaris/Linux signals: 0 - SIGRTMAX |
duke@435 | 41 | // Windows exceptions: 0xCxxxxxxx system errors |
duke@435 | 42 | // 0x8xxxxxxx system warnings |
duke@435 | 43 | |
duke@435 | 44 | const char * _message; |
jcoomes@1845 | 45 | const char * _detail_msg; |
duke@435 | 46 | |
duke@435 | 47 | Thread * _thread; // NULL if it's native thread |
duke@435 | 48 | |
duke@435 | 49 | |
duke@435 | 50 | // additional info for crashes |
duke@435 | 51 | address _pc; // faulting PC |
duke@435 | 52 | void * _siginfo; // ExceptionRecord on Windows, |
duke@435 | 53 | // siginfo_t on Solaris/Linux |
duke@435 | 54 | void * _context; // ContextRecord on Windows, |
duke@435 | 55 | // ucontext_t on Solaris/Linux |
duke@435 | 56 | |
duke@435 | 57 | // additional info for VM internal errors |
duke@435 | 58 | const char * _filename; |
twisti@1038 | 59 | int _lineno; |
duke@435 | 60 | |
duke@435 | 61 | // used by fatal error handler |
duke@435 | 62 | int _current_step; |
duke@435 | 63 | const char * _current_step_info; |
duke@435 | 64 | int _verbose; |
bobv@2036 | 65 | // First error, and its thread id. We must be able to handle native thread, |
bobv@2036 | 66 | // so use thread id instead of Thread* to identify thread. |
bobv@2036 | 67 | static VMError* volatile first_error; |
bobv@2036 | 68 | static volatile jlong first_error_tid; |
duke@435 | 69 | |
duke@435 | 70 | // used by reporting about OOM |
duke@435 | 71 | size_t _size; |
duke@435 | 72 | |
duke@435 | 73 | // set signal handlers on Solaris/Linux or the default exception filter |
duke@435 | 74 | // on Windows, to handle recursive crashes. |
duke@435 | 75 | void reset_signal_handlers(); |
duke@435 | 76 | |
duke@435 | 77 | // handle -XX:+ShowMessageBoxOnError. buf is used to format the message string |
duke@435 | 78 | void show_message_box(char* buf, int buflen); |
duke@435 | 79 | |
duke@435 | 80 | // generate an error report |
duke@435 | 81 | void report(outputStream* st); |
duke@435 | 82 | |
twisti@1819 | 83 | // generate a stack trace |
twisti@1819 | 84 | static void print_stack_trace(outputStream* st, JavaThread* jt, |
twisti@1819 | 85 | char* buf, int buflen, bool verbose = false); |
twisti@1819 | 86 | |
duke@435 | 87 | // accessor |
jcoomes@1845 | 88 | const char* message() const { return _message; } |
jcoomes@1845 | 89 | const char* detail_msg() const { return _detail_msg; } |
coleenp@2418 | 90 | bool should_report_bug(unsigned int id) { return id != oom_error; } |
duke@435 | 91 | |
duke@435 | 92 | public: |
duke@435 | 93 | // Constructor for crashes |
coleenp@2418 | 94 | VMError(Thread* thread, unsigned int sig, address pc, void* siginfo, |
coleenp@2418 | 95 | void* context); |
duke@435 | 96 | // Constructor for VM internal errors |
jcoomes@1845 | 97 | VMError(Thread* thread, const char* filename, int lineno, |
jcoomes@1845 | 98 | const char* message, const char * detail_msg); |
duke@435 | 99 | |
jcoomes@1845 | 100 | // Constructor for VM OOM errors |
jcoomes@1845 | 101 | VMError(Thread* thread, const char* filename, int lineno, size_t size, |
jcoomes@1845 | 102 | const char* message); |
duke@435 | 103 | // Constructor for non-fatal errors |
duke@435 | 104 | VMError(const char* message); |
duke@435 | 105 | |
duke@435 | 106 | // return a string to describe the error |
duke@435 | 107 | char *error_string(char* buf, int buflen); |
duke@435 | 108 | |
duke@435 | 109 | // main error reporting function |
duke@435 | 110 | void report_and_die(); |
duke@435 | 111 | |
duke@435 | 112 | // reporting OutOfMemoryError |
duke@435 | 113 | void report_java_out_of_memory(); |
duke@435 | 114 | |
duke@435 | 115 | // returns original flags for signal, if it was resetted, or -1 if |
duke@435 | 116 | // signal was not changed by error reporter |
duke@435 | 117 | static int get_resetted_sigflags(int sig); |
duke@435 | 118 | |
duke@435 | 119 | // returns original handler for signal, if it was resetted, or NULL if |
duke@435 | 120 | // signal was not changed by error reporter |
duke@435 | 121 | static address get_resetted_sighandler(int sig); |
bobv@2036 | 122 | |
bobv@2036 | 123 | // check to see if fatal error reporting is in progress |
bobv@2036 | 124 | static bool fatal_error_in_progress() { return first_error != NULL; } |
duke@435 | 125 | }; |
stefank@2314 | 126 | |
stefank@2314 | 127 | #endif // SHARE_VM_UTILITIES_VMERROR_HPP |