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