1/* 2 * Copyright (C) 2012, 2013 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#include "config.h" 27#include "JITExceptions.h" 28 29#include "CallFrame.h" 30#include "CodeBlock.h" 31#include "Interpreter.h" 32#include "JITStubs.h" 33#include "JSCJSValue.h" 34#include "LLIntData.h" 35#include "LLIntOpcode.h" 36#include "LLIntThunks.h" 37#include "Opcode.h" 38#include "JSCInlines.h" 39#include "VM.h" 40 41namespace JSC { 42 43void genericUnwind(VM* vm, ExecState* callFrame, JSValue exceptionValue) 44{ 45 if (Options::breakOnThrow()) { 46 dataLog("In call frame ", RawPointer(callFrame), " for code block ", *callFrame->codeBlock(), "\n"); 47 CRASH(); 48 } 49 50 RELEASE_ASSERT(exceptionValue); 51 HandlerInfo* handler = vm->interpreter->unwind(callFrame, exceptionValue); // This may update callFrame. 52 53 void* catchRoutine; 54 Instruction* catchPCForInterpreter = 0; 55 if (handler) { 56 catchPCForInterpreter = &callFrame->codeBlock()->instructions()[handler->target]; 57#if ENABLE(JIT) 58 catchRoutine = handler->nativeCode.executableAddress(); 59#else 60 catchRoutine = catchPCForInterpreter->u.pointer; 61#endif 62 } else 63 catchRoutine = LLInt::getCodePtr(handleUncaughtException); 64 65 vm->callFrameForThrow = callFrame; 66 vm->targetMachinePCForThrow = catchRoutine; 67 vm->targetInterpreterPCForThrow = catchPCForInterpreter; 68 69 RELEASE_ASSERT(catchRoutine); 70} 71 72} // namespace JSC 73