duke@435: /*
twisti@1038:  * Copyright 2003-2009 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: 
duke@435: class VM_ReportJavaOutOfMemory;
duke@435: 
duke@435: class VMError : public StackObj {
duke@435:   friend class VM_ReportJavaOutOfMemory;
duke@435: 
duke@435:   enum ErrorType {
duke@435:     internal_error = 0xe0000000,
duke@435:     oom_error      = 0xe0000001
duke@435:   };
duke@435:   int          _id;          // Solaris/Linux signals: 0 - SIGRTMAX
duke@435:                              // Windows exceptions: 0xCxxxxxxx system errors
duke@435:                              //                     0x8xxxxxxx system warnings
duke@435: 
duke@435:   const char * _message;
duke@435: 
duke@435:   Thread *     _thread;      // NULL if it's native thread
duke@435: 
duke@435: 
duke@435:   // additional info for crashes
duke@435:   address      _pc;          // faulting PC
duke@435:   void *       _siginfo;     // ExceptionRecord on Windows,
duke@435:                              // siginfo_t on Solaris/Linux
duke@435:   void *       _context;     // ContextRecord on Windows,
duke@435:                              // ucontext_t on Solaris/Linux
duke@435: 
duke@435:   // additional info for VM internal errors
duke@435:   const char * _filename;
twisti@1038:   int          _lineno;
duke@435: 
duke@435:   // used by fatal error handler
duke@435:   int          _current_step;
duke@435:   const char * _current_step_info;
duke@435:   int          _verbose;
duke@435: 
duke@435:   // used by reporting about OOM
duke@435:   size_t       _size;
duke@435: 
duke@435:   // set signal handlers on Solaris/Linux or the default exception filter
duke@435:   // on Windows, to handle recursive crashes.
duke@435:   void reset_signal_handlers();
duke@435: 
duke@435:   // handle -XX:+ShowMessageBoxOnError. buf is used to format the message string
duke@435:   void show_message_box(char* buf, int buflen);
duke@435: 
duke@435:   // generate an error report
duke@435:   void report(outputStream* st);
duke@435: 
duke@435:   // accessor
duke@435:   const char* message()         { return _message; }
duke@435: 
duke@435: public:
duke@435:   // Constructor for crashes
duke@435:   VMError(Thread* thread, int sig, address pc, void* siginfo, void* context);
duke@435:   // Constructor for VM internal errors
duke@435:   VMError(Thread* thread, const char* message, const char* filename, int lineno);
duke@435: 
duke@435:   // Constructors for VM OOM errors
duke@435:   VMError(Thread* thread, size_t size, const char* message, const char* filename, int lineno);
duke@435:   // Constructor for non-fatal errors
duke@435:   VMError(const char* message);
duke@435: 
duke@435:   // return a string to describe the error
duke@435:   char *error_string(char* buf, int buflen);
duke@435: 
duke@435:   // main error reporting function
duke@435:   void report_and_die();
duke@435: 
duke@435:   // reporting OutOfMemoryError
duke@435:   void report_java_out_of_memory();
duke@435: 
duke@435:   // returns original flags for signal, if it was resetted, or -1 if
duke@435:   // signal was not changed by error reporter
duke@435:   static int get_resetted_sigflags(int sig);
duke@435: 
duke@435:   // returns original handler for signal, if it was resetted, or NULL if
duke@435:   // signal was not changed by error reporter
duke@435:   static address get_resetted_sighandler(int sig);
duke@435: };