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