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 /** 97 * main error reporting function 98 * 99 * int id; // Solaris/Linux signals: 0 - SIGRTMAX 100 * // Windows exceptions: 0xCxxxxxxx system errors 101 * // 0x8xxxxxxx system warnings 102 * const char* message; 103 * const char* detail_fmt; 104 * va_list detail_args; 105 * Thread* thread; // NULL if it's native thread 106 * 107 * additional info for crashes 108 * 109 * address pc; // faulting PC 110 * void* siginfo; // ExceptionRecord on Windows, 111 * // siginfo_t on Solaris/Linux 112 * void* context; // ContextRecord on Windows, 113 * // ucontext_t on Solaris/Linux 114 * 115 * additional info for VM internal errors 116 * 117 * const char* filename; 118 * int lineno; 119 * 120 * used by reporting about OOM 121 * 122 * size_t size; 123 */ 124 static void report_and_die(int id, const char* message, const char* detail_fmt, va_list detail_args, 125 Thread* thread, address pc, void* siginfo, void* context, 126 const char* filename, int lineno, size_t size) ATTRIBUTE_PRINTF(3, 0); 127 128 static void report_and_die(Thread* thread, unsigned int sig, address pc, 129 void* siginfo, void* context); 130 131 static void report_and_die(Thread* thread,const char* filename, int lineno, const char* message, 132 const char* detail_fmt, va_list detail_args) ATTRIBUTE_PRINTF(5, 0); 133 134 static void report_and_die(Thread* thread, const char* filename, int lineno, size_t size, 135 VMErrorType vm_err_type, const char* detail_fmt, 136 va_list detail_args) ATTRIBUTE_PRINTF(6, 0); 137 138 static void report_and_die(const char* message); 139 140 // reporting OutOfMemoryError 141 static void report_java_out_of_memory(const char* message); 142 143 // returns original flags for signal, if it was resetted, or -1 if 144 // signal was not changed by error reporter 145 static int get_resetted_sigflags(int sig); 146 147 // returns original handler for signal, if it was resetted, or NULL if 148 // signal was not changed by error reporter 149 static address get_resetted_sighandler(int sig); 150 151 // check to see if fatal error reporting is in progress 152 static bool fatal_error_in_progress() { return first_error_tid != -1; } 153 154 static jlong get_first_error_tid() { 155 return first_error_tid; 156 } 157 }; 158 159 #endif // SHARE_VM_UTILITIES_VMERROR_HPP