vmError.hpp revision 9842:4055f3ec41cd 
1/*
2 * Copyright (c) 2003, 2015, 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#ifndef SHARE_VM_UTILITIES_VMERROR_HPP
26#define SHARE_VM_UTILITIES_VMERROR_HPP
27
28#include "utilities/globalDefinitions.hpp"
29
30class Decoder;
31class VM_ReportJavaOutOfMemory;
32
33class VMError : public AllStatic {
34  friend class VM_ReportJavaOutOfMemory;
35  friend class Decoder;
36
37  static int         _id;               // Solaris/Linux signals: 0 - SIGRTMAX
38                                        // Windows exceptions: 0xCxxxxxxx system errors
39                                        //                     0x8xxxxxxx system warnings
40
41  static const char* _message;
42  static char        _detail_msg[1024];
43
44  static Thread*     _thread;           // NULL if it's native thread
45
46  // additional info for crashes
47  static address     _pc;               // faulting PC
48  static void*       _siginfo;          // ExceptionRecord on Windows,
49                                        // siginfo_t on Solaris/Linux
50  static void*       _context;          // ContextRecord on Windows,
51                                        // ucontext_t on Solaris/Linux
52
53  // additional info for VM internal errors
54  static const char* _filename;
55  static int         _lineno;
56
57  // used by reporting about OOM
58  static size_t      _size;
59
60  // used by fatal error handler
61  static int         _current_step;
62  static const char* _current_step_info;
63
64  // Thread id of the first error. We must be able to handle native thread,
65  // so use thread id instead of Thread* to identify thread.
66  static volatile intptr_t first_error_tid;
67
68  // Core dump status, false if we have been unable to write a core/minidump for some reason
69  static bool coredump_status;
70
71  // When coredump_status is set to true this will contain the name/path to the core/minidump,
72  // if coredump_status if false, this will (hopefully) contain a useful error explaining why
73  // no core/minidump has been written to disk
74  static char coredump_message[O_BUFLEN];
75
76
77  // set signal handlers on Solaris/Linux or the default exception filter
78  // on Windows, to handle recursive crashes.
79  static void reset_signal_handlers();
80
81  // handle -XX:+ShowMessageBoxOnError. buf is used to format the message string
82  static void show_message_box(char* buf, int buflen);
83
84  // generate an error report
85  static void report(outputStream* st, bool verbose);
86
87  // generate a stack trace
88  static void print_stack_trace(outputStream* st, JavaThread* jt,
89                                char* buf, int buflen, bool verbose = false);
90
91  static bool should_report_bug(unsigned int id) {
92    return (id != OOM_MALLOC_ERROR) && (id != OOM_MMAP_ERROR);
93  }
94
95  // Write a hint to the stream in case siginfo relates to a segv/bus error
96  // and the offending address points into CDS store.
97  static void check_failing_cds_access(outputStream* st, const void* siginfo);
98
99  static void report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo,
100                             void* context, const char* detail_fmt, ...) ATTRIBUTE_PRINTF(6, 7);
101  static void report_and_die(const char* message, const char* detail_fmt, ...) ATTRIBUTE_PRINTF(2, 3);
102
103  static fdStream out;
104  static fdStream log; // error log used by VMError::report_and_die()
105
106public:
107
108  // return a string to describe the error
109  static char* error_string(char* buf, int buflen);
110
111  // Record status of core/minidump
112  static void record_coredump_status(const char* message, bool status);
113
114  // support for VM.info diagnostic command
115  static void print_vm_info(outputStream* st);
116
117  // main error reporting function
118  static void report_and_die(int id, const char* message, const char* detail_fmt, va_list detail_args,
119                             Thread* thread, address pc, void* siginfo, void* context,
120                             const char* filename, int lineno, size_t size) ATTRIBUTE_PRINTF(3, 0);
121
122  static void report_and_die(Thread* thread, unsigned int sig, address pc,
123                             void* siginfo, void* context);
124
125  static void report_and_die(Thread* thread,const char* filename, int lineno, const char* message,
126                             const char* detail_fmt, va_list detail_args) ATTRIBUTE_PRINTF(5, 0);
127
128  static void report_and_die(Thread* thread, const char* filename, int lineno, size_t size,
129                             VMErrorType vm_err_type, const char* detail_fmt,
130                             va_list detail_args) ATTRIBUTE_PRINTF(6, 0);
131
132  static void report_and_die(const char* message);
133
134  // reporting OutOfMemoryError
135  static void report_java_out_of_memory(const char* message);
136
137  // returns original flags for signal, if it was resetted, or -1 if
138  // signal was not changed by error reporter
139  static int get_resetted_sigflags(int sig);
140
141  // returns original handler for signal, if it was resetted, or NULL if
142  // signal was not changed by error reporter
143  static address get_resetted_sighandler(int sig);
144
145  // check to see if fatal error reporting is in progress
146  static bool fatal_error_in_progress() { return first_error_tid != -1; }
147
148  static intptr_t get_first_error_tid() { return first_error_tid; }
149};
150
151#endif // SHARE_VM_UTILITIES_VMERROR_HPP
152