vmError.hpp revision 1879:f95d63e2154a 
1/*
2 * Copyright (c) 2003, 2010, 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
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23 */
24
25#ifndef SHARE_VM_UTILITIES_VMERROR_HPP
26#define SHARE_VM_UTILITIES_VMERROR_HPP
27
28#include "utilities/globalDefinitions.hpp"
29
30
31class VM_ReportJavaOutOfMemory;
32
33class VMError : public StackObj {
34  friend class VM_ReportJavaOutOfMemory;
35
36  enum ErrorType {
37    internal_error = 0xe0000000,
38    oom_error      = 0xe0000001
39  };
40  int          _id;          // Solaris/Linux signals: 0 - SIGRTMAX
41                             // Windows exceptions: 0xCxxxxxxx system errors
42                             //                     0x8xxxxxxx system warnings
43
44  const char * _message;
45  const char * _detail_msg;
46
47  Thread *     _thread;      // NULL if it's native thread
48
49
50  // additional info for crashes
51  address      _pc;          // faulting PC
52  void *       _siginfo;     // ExceptionRecord on Windows,
53                             // siginfo_t on Solaris/Linux
54  void *       _context;     // ContextRecord on Windows,
55                             // ucontext_t on Solaris/Linux
56
57  // additional info for VM internal errors
58  const char * _filename;
59  int          _lineno;
60
61  // used by fatal error handler
62  int          _current_step;
63  const char * _current_step_info;
64  int          _verbose;
65  // First error, and its thread id. We must be able to handle native thread,
66  // so use thread id instead of Thread* to identify thread.
67  static VMError* volatile first_error;
68  static volatile jlong    first_error_tid;
69
70  // used by reporting about OOM
71  size_t       _size;
72
73  // set signal handlers on Solaris/Linux or the default exception filter
74  // on Windows, to handle recursive crashes.
75  void reset_signal_handlers();
76
77  // handle -XX:+ShowMessageBoxOnError. buf is used to format the message string
78  void show_message_box(char* buf, int buflen);
79
80  // generate an error report
81  void report(outputStream* st);
82
83  // generate a stack trace
84  static void print_stack_trace(outputStream* st, JavaThread* jt,
85                                char* buf, int buflen, bool verbose = false);
86
87  // accessor
88  const char* message() const    { return _message; }
89  const char* detail_msg() const { return _detail_msg; }
90
91public:
92  // Constructor for crashes
93  VMError(Thread* thread, int sig, address pc, void* siginfo, void* context);
94  // Constructor for VM internal errors
95  VMError(Thread* thread, const char* filename, int lineno,
96          const char* message, const char * detail_msg);
97
98  // Constructor for VM OOM errors
99  VMError(Thread* thread, const char* filename, int lineno, size_t size,
100          const char* message);
101  // Constructor for non-fatal errors
102  VMError(const char* message);
103
104  // return a string to describe the error
105  char *error_string(char* buf, int buflen);
106
107  // main error reporting function
108  void report_and_die();
109
110  // reporting OutOfMemoryError
111  void report_java_out_of_memory();
112
113  // returns original flags for signal, if it was resetted, or -1 if
114  // signal was not changed by error reporter
115  static int get_resetted_sigflags(int sig);
116
117  // returns original handler for signal, if it was resetted, or NULL if
118  // signal was not changed by error reporter
119  static address get_resetted_sighandler(int sig);
120
121  // check to see if fatal error reporting is in progress
122  static bool fatal_error_in_progress() { return first_error != NULL; }
123};
124
125#endif // SHARE_VM_UTILITIES_VMERROR_HPP
126