author | jmasa |
Wed, 25 Jun 2014 20:41:16 -0700 | |
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/* |
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* Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#ifndef SHARE_VM_UTILITIES_VMERROR_HPP |
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#define SHARE_VM_UTILITIES_VMERROR_HPP |
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#include "utilities/globalDefinitions.hpp" |
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class Decoder; |
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class VM_ReportJavaOutOfMemory; |
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class VMError : public StackObj { |
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friend class VM_ReportJavaOutOfMemory; |
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friend class Decoder; |
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int _id; // Solaris/Linux signals: 0 - SIGRTMAX |
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// Windows exceptions: 0xCxxxxxxx system errors |
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// 0x8xxxxxxx system warnings |
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const char * _message; |
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const char * _detail_msg; |
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Thread * _thread; // NULL if it's native thread |
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// additional info for crashes |
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address _pc; // faulting PC |
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void * _siginfo; // ExceptionRecord on Windows, |
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// siginfo_t on Solaris/Linux |
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void * _context; // ContextRecord on Windows, |
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// ucontext_t on Solaris/Linux |
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// additional info for VM internal errors |
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const char * _filename; |
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int _lineno; |
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// used by fatal error handler |
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int _current_step; |
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const char * _current_step_info; |
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int _verbose; |
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// First error, and its thread id. We must be able to handle native thread, |
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// so use thread id instead of Thread* to identify thread. |
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static VMError* volatile first_error; |
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static volatile jlong first_error_tid; |
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// Core dump status, false if we have been unable to write a core/minidump for some reason |
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static bool coredump_status; |
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// When coredump_status is set to true this will contain the name/path to the core/minidump, |
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// if coredump_status if false, this will (hopefully) contain a useful error explaining why |
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// no core/minidump has been written to disk |
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static char coredump_message[O_BUFLEN]; |
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// used by reporting about OOM |
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size_t _size; |
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// set signal handlers on Solaris/Linux or the default exception filter |
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// on Windows, to handle recursive crashes. |
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void reset_signal_handlers(); |
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// handle -XX:+ShowMessageBoxOnError. buf is used to format the message string |
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void show_message_box(char* buf, int buflen); |
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// generate an error report |
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void report(outputStream* st); |
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// generate a stack trace |
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static void print_stack_trace(outputStream* st, JavaThread* jt, |
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char* buf, int buflen, bool verbose = false); |
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// accessor |
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const char* message() const { return _message; } |
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const char* detail_msg() const { return _detail_msg; } |
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bool should_report_bug(unsigned int id) { |
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return (id != OOM_MALLOC_ERROR) && (id != OOM_MMAP_ERROR); |
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} |
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static fdStream out; |
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static fdStream log; // error log used by VMError::report_and_die() |
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public: |
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// Constructor for crashes |
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VMError(Thread* thread, unsigned int sig, address pc, void* siginfo, |
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void* context); |
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// Constructor for VM internal errors |
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VMError(Thread* thread, const char* filename, int lineno, |
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const char* message, const char * detail_msg); |
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// Constructor for VM OOM errors |
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VMError(Thread* thread, const char* filename, int lineno, size_t size, |
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VMErrorType vm_err_type, const char* message); |
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// Constructor for non-fatal errors |
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VMError(const char* message); |
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// return a string to describe the error |
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char *error_string(char* buf, int buflen); |
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// Report status of core/minidump |
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static void report_coredump_status(const char* message, bool status); |
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// main error reporting function |
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void report_and_die(); |
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// reporting OutOfMemoryError |
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void report_java_out_of_memory(); |
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// returns original flags for signal, if it was resetted, or -1 if |
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// signal was not changed by error reporter |
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static int get_resetted_sigflags(int sig); |
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// returns original handler for signal, if it was resetted, or NULL if |
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// signal was not changed by error reporter |
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static address get_resetted_sighandler(int sig); |
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// check to see if fatal error reporting is in progress |
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static bool fatal_error_in_progress() { return first_error != NULL; } |
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static jlong get_first_error_tid() { |
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return first_error_tid; |
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} |
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}; |
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#endif // SHARE_VM_UTILITIES_VMERROR_HPP |