/*

 * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#include "precompiled.hpp"

#include "memory/metaspaceShared.hpp"

#include "runtime/arguments.hpp"

#include "runtime/os.hpp"

#include "runtime/thread.hpp"

#include "utilities/vmError.hpp"

int VMError::get_resetted_sigflags(int sig) {

  return -1;

}

address VMError::get_resetted_sighandler(int sig) {

  return NULL;

}

LONG WINAPI crash_handler(struct _EXCEPTION_POINTERS* exceptionInfo) {

  DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode;

  VMError::report_and_die(NULL, exception_code, NULL, exceptionInfo->ExceptionRecord,

                          exceptionInfo->ContextRecord);

  return EXCEPTION_CONTINUE_SEARCH;

}

void VMError::reset_signal_handlers() {

  SetUnhandledExceptionFilter(crash_handler);

}

// Write a hint to the stream in case siginfo relates to a segv/bus error

// and the offending address points into CDS archive.

void VMError::check_failing_cds_access(outputStream* st, const void* siginfo) {

#if INCLUDE_CDS

  if (siginfo && UseSharedSpaces) {

    const EXCEPTION_RECORD* const er = (const EXCEPTION_RECORD*)siginfo;

    if (er->ExceptionCode == EXCEPTION_IN_PAGE_ERROR &&

        er->NumberParameters >= 2) {

      const void* const fault_addr = (const void*) er->ExceptionInformation[1];

      if (fault_addr != NULL) {

        if (MetaspaceShared::is_in_shared_metaspace(fault_addr)) {

          st->print("Error accessing class data sharing archive. "

            "Mapped file inaccessible during execution, possible disk/network problem.");

        }

      }

    }

  }

#endif

}

// Error reporting cancellation: there is no easy way to implement this on Windows, because we do

// not have an easy way to send signals to threads (aka to cause a win32 Exception in another

// thread). We would need something like "RaiseException(HANDLE thread)"...

void VMError::reporting_started() {}

void VMError::interrupt_reporting_thread() {}