jit/JITExceptions.h

   1 /*
   2  * Copyright (C) 2012 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef JITExceptions_h
  27 #define JITExceptions_h
  28
  29 #include "JSCJSValue.h"
  30 #include "MacroAssemblerCodeRef.h"
  31
  32 #if ENABLE(JIT) || ENABLE(LLINT)
  33
  34 namespace JSC {
  35
  36 class ExecState;
  37 class VM;
  38
  39 // This header gives other parts of the system access to the JIT's prototocol
  40 // for the throwing and handling exceptions.
  41
  42 struct ExceptionHandler {
  43     void* catchRoutine;
  44     ExecState* callFrame;
  45 };
  46
  47 ExceptionHandler genericThrow(VM*, ExecState*, JSValue exceptionValue, unsigned vPCIndex);
  48
  49 ExceptionHandler jitThrow(VM*, ExecState*, JSValue exceptionValue, ReturnAddressPtr faultLocation);
  50
  51 } // namespace JSC
  52
  53 #endif // ENABLE(JIT) || ENABLE(LLINT)
  54
  55 #endif // JITExceptions_h
  56