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/*
* Copyright (C) 2012 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "JITExceptions.h"
#include "CallFrame.h"
#include "CodeBlock.h"
#include "Interpreter.h"
#include "JSCJSValue.h"
#include "VM.h"
#include "Operations.h"
#if ENABLE(JIT) || ENABLE(LLINT)
namespace JSC {
ExceptionHandler genericThrow(VM* vm, ExecState* callFrame, JSValue exceptionValue, unsigned vPCIndex)
{
RELEASE_ASSERT(exceptionValue);
vm->exception = JSValue();
HandlerInfo* handler = vm->interpreter->throwException(callFrame, exceptionValue, vPCIndex); // This may update callFrame & exceptionValue!
vm->exception = exceptionValue;
void* catchRoutine;
Instruction* catchPCForInterpreter = 0;
if (handler) {
catchPCForInterpreter = &callFrame->codeBlock()->instructions()[handler->target];
catchRoutine = ExecutableBase::catchRoutineFor(handler, catchPCForInterpreter);
} else
catchRoutine = FunctionPtr(LLInt::getCodePtr(ctiOpThrowNotCaught)).value();
vm->callFrameForThrow = callFrame;
vm->targetMachinePCForThrow = catchRoutine;
vm->targetInterpreterPCForThrow = catchPCForInterpreter;
RELEASE_ASSERT(catchRoutine);
ExceptionHandler exceptionHandler = { catchRoutine, callFrame };
return exceptionHandler;
}
ExceptionHandler jitThrow(VM* vm, ExecState* callFrame, JSValue exceptionValue, ReturnAddressPtr faultLocation)
{
return genericThrow(vm, callFrame, exceptionValue, callFrame->codeBlock()->bytecodeOffset(callFrame, faultLocation));
}
}
#endif
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