1 /*
2 * Copyright (c) 2003, 2012, 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.
22 *
23 */
24
25 #ifndef SHARE_VM_UTILITIES_VMERROR_HPP
26 #define SHARE_VM_UTILITIES_VMERROR_HPP
27
28 #include "utilities/globalDefinitions.hpp"
29
30 class Decoder;
31 class VM_ReportJavaOutOfMemory;
32
33 class VMError : public StackObj {
34 friend class VM_ReportJavaOutOfMemory;
35 friend class Decoder;
36
37 enum ErrorType {
38 internal_error = 0xe0000000,
39 oom_error = 0xe0000001
40 };
41 int _id; // Solaris/Linux signals: 0 - SIGRTMAX
42 // Windows exceptions: 0xCxxxxxxx system errors
43 // 0x8xxxxxxx system warnings
44
45 const char * _message;
46 const char * _detail_msg;
47
48 Thread * _thread; // NULL if it's native thread
49
50
51 // additional info for crashes
52 address _pc; // faulting PC
53 void * _siginfo; // ExceptionRecord on Windows,
54 // siginfo_t on Solaris/Linux
55 void * _context; // ContextRecord on Windows,
56 // ucontext_t on Solaris/Linux
57
58 // additional info for VM internal errors
59 const char * _filename;
60 int _lineno;
61
62 // used by fatal error handler
63 int _current_step;
64 const char * _current_step_info;
65 int _verbose;
66 // First error, and its thread id. We must be able to handle native thread,
67 // so use thread id instead of Thread* to identify thread.
68 static VMError* volatile first_error;
69 static volatile jlong first_error_tid;
70
71 // Core dump status, false if we have been unable to write a core/minidump for some reason
72 static bool coredump_status;
73
74 // When coredump_status is set to true this will contain the name/path to the core/minidump,
75 // if coredump_status if false, this will (hopefully) contain a useful error explaining why
76 // no core/minidump has been written to disk
77 static char coredump_message[O_BUFLEN];
78
79 // used by reporting about OOM
80 size_t _size;
81
82 // set signal handlers on Solaris/Linux or the default exception filter
83 // on Windows, to handle recursive crashes.
84 void reset_signal_handlers();
85
86 // handle -XX:+ShowMessageBoxOnError. buf is used to format the message string
87 void show_message_box(char* buf, int buflen);
88
89 // generate an error report
90 void report(outputStream* st);
91
92 // generate a stack trace
93 static void print_stack_trace(outputStream* st, JavaThread* jt,
94 char* buf, int buflen, bool verbose = false);
95
96 // accessor
97 const char* message() const { return _message; }
98 const char* detail_msg() const { return _detail_msg; }
99 bool should_report_bug(unsigned int id) { return id != oom_error; }
100
101 public:
102 // Constructor for crashes
103 VMError(Thread* thread, unsigned int sig, address pc, void* siginfo,
104 void* context);
105 // Constructor for VM internal errors
106 VMError(Thread* thread, const char* filename, int lineno,
107 const char* message, const char * detail_msg);
108
109 // Constructor for VM OOM errors
110 VMError(Thread* thread, const char* filename, int lineno, size_t size,
111 const char* message);
112 // Constructor for non-fatal errors
113 VMError(const char* message);
114
115 // return a string to describe the error
116 char *error_string(char* buf, int buflen);
117
118 // Report status of core/minidump
119 static void report_coredump_status(const char* message, bool status);
120
121 // main error reporting function
122 void report_and_die();
123
124 // reporting OutOfMemoryError
125 void report_java_out_of_memory();
126
127 // returns original flags for signal, if it was resetted, or -1 if
128 // signal was not changed by error reporter
129 static int get_resetted_sigflags(int sig);
130
131 // returns original handler for signal, if it was resetted, or NULL if
132 // signal was not changed by error reporter
133 static address get_resetted_sighandler(int sig);
134
135 // check to see if fatal error reporting is in progress
136 static bool fatal_error_in_progress() { return first_error != NULL; }
137 };
138
139 #endif // SHARE_VM_UTILITIES_VMERROR_HPP