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.
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 AllStatic {
34 friend class VM_ReportJavaOutOfMemory;
35 friend class Decoder;
36
37 // used by fatal error handler
38 static int _current_step;
39 static const char * _current_step_info;
40 static int _verbose;
41 // Thread id of the first error. We must be able to handle native thread,
42 // so use thread id instead of Thread* to identify thread.
43 static volatile jlong first_error_tid;
44
45 // Core dump status, false if we have been unable to write a core/minidump for some reason
46 static bool coredump_status;
47
48 // When coredump_status is set to true this will contain the name/path to the core/minidump,
49 // if coredump_status if false, this will (hopefully) contain a useful error explaining why
50 // no core/minidump has been written to disk
51 static char coredump_message[O_BUFLEN];
52
53
54 // set signal handlers on Solaris/Linux or the default exception filter
55 // on Windows, to handle recursive crashes.
56 static void reset_signal_handlers();
57
58 // handle -XX:+ShowMessageBoxOnError. buf is used to format the message string
59 static void show_message_box(char* buf, int buflen, int id, const char* message,
60 const char* detail_fmt, va_list detail_args, address pc,
61 const char* filename, int lineno) ATTRIBUTE_PRINTF(5, 0);
62
63 // generate an error report
64 static void report(outputStream* st, int id, const char* message, const char* detail_fmt,
65 va_list detail_msg_args, Thread* thread, address pc, void* siginfo,
66 void* context, const char* filename, int lineno, size_t size) ATTRIBUTE_PRINTF(4, 0);
67
68 // generate a stack trace
69 static void print_stack_trace(outputStream* st, JavaThread* jt,
70 char* buf, int buflen, bool verbose = false);
71
72 static const char* gc_mode();
73 static void print_oom_reasons(outputStream* st);
74
75 static bool should_report_bug(unsigned int id) {
76 return (id != OOM_MALLOC_ERROR) && (id != OOM_MMAP_ERROR);
77 }
78
79 static void report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo,
80 void* context, const char* detail_fmt, ...) ATTRIBUTE_PRINTF(6, 7);
81 static void report_and_die(const char* message, const char* detail_fmt, ...) ATTRIBUTE_PRINTF(2, 3);
82
83 static fdStream out;
84 static fdStream log; // error log used by VMError::report_and_die()
85
86 public:
87
88 // return a string to describe the error
89 static char* error_string(char* buf, int buflen, int id, const char* message,
90 const char* detail_fmt, va_list detail_args, address pc,
91 const char* filename, int lineno) ATTRIBUTE_PRINTF(5, 0);
92
93 // Record status of core/minidump
94 static void record_coredump_status(const char* message, bool status);
95
96 // main error reporting function
97 //
98 // int id; // Solaris/Linux signals: 0 - SIGRTMAX
99 // // Windows exceptions: 0xCxxxxxxx system errors
100 // // 0x8xxxxxxx system warnings
101 // const char* message;
102 // const char* detail_fmt; // Format string for the detailed message
103 // va_list detail_args;// Arguments for the detailed message
104 // Thread* thread; // NULL if it's native thread
105 //
106 // additional info for crashes
107 //
108 // address pc; // faulting PC
109 // void* siginfo; // ExceptionRecord on Windows,
110 // // siginfo_t on Solaris/Linux
111 // void* context; // ContextRecord on Windows,
112 // // ucontext_t on Solaris/Linux
113 //
114 // additional info for VM internal errors
115 //
116 // const char* filename;
117 // int lineno;
118 //
119 // additional info for OOM
120 //
121 // size_t size;
122 static void report_and_die(int id, const char* message, const char* detail_fmt, va_list detail_args,
123 Thread* thread, address pc, void* siginfo, void* context,
124 const char* filename, int lineno, size_t size) ATTRIBUTE_PRINTF(3, 0);
125
126 static void report_and_die(Thread* thread, unsigned int sig, address pc,
127 void* siginfo, void* context);
128
129 static void report_and_die(Thread* thread,const char* filename, int lineno, const char* message,
130 const char* detail_fmt, va_list detail_args) ATTRIBUTE_PRINTF(5, 0);
131
132 static void report_and_die(Thread* thread, const char* filename, int lineno, size_t size,
133 VMErrorType vm_err_type, const char* detail_fmt,
134 va_list detail_args) ATTRIBUTE_PRINTF(6, 0);
135
136 static void report_and_die(const char* message);
137
138 // reporting OutOfMemoryError
139 static void report_java_out_of_memory(const char* message);
140
141 // returns original flags for signal, if it was resetted, or -1 if
142 // signal was not changed by error reporter
143 static int get_resetted_sigflags(int sig);
144
145 // returns original handler for signal, if it was resetted, or NULL if
146 // signal was not changed by error reporter
147 static address get_resetted_sighandler(int sig);
148
149 // check to see if fatal error reporting is in progress
150 static bool fatal_error_in_progress() { return first_error_tid != -1; }
151
152 static jlong get_first_error_tid() {
153 return first_error_tid;
154 }
155 };
156
157 #endif // SHARE_VM_UTILITIES_VMERROR_HPP