LLIntExceptions.cpp   [plain text]


/*
 * Copyright (C) 2011-2018 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 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
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#include "config.h"
#include "LLIntExceptions.h"
#include "CallFrame.h"
#include "CodeBlock.h"
#include "Instruction.h"
#include "LLIntCommon.h"
#include "LLIntData.h"
#include "LowLevelInterpreter.h"
#include "JSCInlines.h"

#if LLINT_TRACING
#include "Exception.h"
#endif

namespace JSC { namespace LLInt {

Instruction* returnToThrow(ExecState* exec)
{
    UNUSED_PARAM(exec);
#if LLINT_TRACING
    if (UNLIKELY(Options::traceLLIntSlowPath())) {
        VM* vm = &exec->vm();
        auto scope = DECLARE_CATCH_SCOPE(*vm);
        dataLog("Throwing exception ", JSValue(scope.exception()), " (returnToThrow).\n");
    }
#endif
    return LLInt::exceptionInstructions();
}

void* callToThrow(ExecState* exec)
{
    UNUSED_PARAM(exec);
#if LLINT_TRACING
    if (UNLIKELY(Options::traceLLIntSlowPath())) {
        VM* vm = &exec->vm();
        auto scope = DECLARE_CATCH_SCOPE(*vm);
        dataLog("Throwing exception ", JSValue(scope.exception()), " (callToThrow).\n");
    }
#endif
    return LLInt::getCodePtr<ExceptionHandlerPtrTag>(llint_throw_during_call_trampoline).executableAddress();
}

} } // namespace JSC::LLInt