vmError.hpp revision 1472:c18cbe5936b8 
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
21 * questions.
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23 */
24
25
26class VM_ReportJavaOutOfMemory;
27
28class VMError : public StackObj {
29  friend class VM_ReportJavaOutOfMemory;
30
31  enum ErrorType {
32    internal_error = 0xe0000000,
33    oom_error      = 0xe0000001
34  };
35  int          _id;          // Solaris/Linux signals: 0 - SIGRTMAX
36                             // Windows exceptions: 0xCxxxxxxx system errors
37                             //                     0x8xxxxxxx system warnings
38
39  const char * _message;
40  const char * _detail_msg;
41
42  Thread *     _thread;      // NULL if it's native thread
43
44
45  // additional info for crashes
46  address      _pc;          // faulting PC
47  void *       _siginfo;     // ExceptionRecord on Windows,
48                             // siginfo_t on Solaris/Linux
49  void *       _context;     // ContextRecord on Windows,
50                             // ucontext_t on Solaris/Linux
51
52  // additional info for VM internal errors
53  const char * _filename;
54  int          _lineno;
55
56  // used by fatal error handler
57  int          _current_step;
58  const char * _current_step_info;
59  int          _verbose;
60
61  // used by reporting about OOM
62  size_t       _size;
63
64  // set signal handlers on Solaris/Linux or the default exception filter
65  // on Windows, to handle recursive crashes.
66  void reset_signal_handlers();
67
68  // handle -XX:+ShowMessageBoxOnError. buf is used to format the message string
69  void show_message_box(char* buf, int buflen);
70
71  // generate an error report
72  void report(outputStream* st);
73
74  // generate a stack trace
75  static void print_stack_trace(outputStream* st, JavaThread* jt,
76                                char* buf, int buflen, bool verbose = false);
77
78  // accessor
79  const char* message() const    { return _message; }
80  const char* detail_msg() const { return _detail_msg; }
81
82public:
83  // Constructor for crashes
84  VMError(Thread* thread, int sig, address pc, void* siginfo, void* context);
85  // Constructor for VM internal errors
86  VMError(Thread* thread, const char* filename, int lineno,
87          const char* message, const char * detail_msg);
88
89  // Constructor for VM OOM errors
90  VMError(Thread* thread, const char* filename, int lineno, size_t size,
91          const char* message);
92  // Constructor for non-fatal errors
93  VMError(const char* message);
94
95  // return a string to describe the error
96  char *error_string(char* buf, int buflen);
97
98  // main error reporting function
99  void report_and_die();
100
101  // reporting OutOfMemoryError
102  void report_java_out_of_memory();
103
104  // returns original flags for signal, if it was resetted, or -1 if
105  // signal was not changed by error reporter
106  static int get_resetted_sigflags(int sig);
107
108  // returns original handler for signal, if it was resetted, or NULL if
109  // signal was not changed by error reporter
110  static address get_resetted_sighandler(int sig);
111};
112