WebKit/Source/JavaScriptCore/assembler/ProbeFrame.h at main · WebKit/WebKit · GitHub

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* 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.

#pragma once

#include <wtf/Platform.h>

#if ENABLE(ASSEMBLER)

#include "CallFrame.h"

#include "ProbeStack.h"

#include "VirtualRegister.h"

namespace JSC {

namespace Probe {

class Frame {

public:

Frame(void* frameBase, Stack& stack)

: m_frameBase { static_cast<uint8_t*>(frameBase) }

, m_stack { stack }

{ }

template<typename T = JSValue>

T argument(int argument)

{

return get<T>(CallFrame::argumentOffset(argument) * sizeof(Register));

}

template<typename T = JSValue>

T operand(VirtualRegister operand)

{

return get<T>(operand.offset() * sizeof(Register));

}

template<typename T = JSValue>

T operand(VirtualRegister operand, ptrdiff_t offset)

{

return get<T>(operand.offset() * sizeof(Register) + offset);

}

template<typename T>

void setArgument(int argument, T value)

{

return set<T>(CallFrame::argumentOffset(argument) * sizeof(Register), value);

}

template<typename T>

void setOperand(VirtualRegister operand, T value)

{

set<T>(operand.offset() * sizeof(Register), value);

}

template<typename T>

void setOperand(VirtualRegister operand, ptrdiff_t offset, T value)

{

set<T>(operand.offset() * sizeof(Register) + offset, value);

}

template<typename T = JSValue>

T get(ptrdiff_t offset)

{

return m_stack.get<T>(m_frameBase + offset);

}

template<typename T>

void set(ptrdiff_t offset, T value)

{

m_stack.set<T>(m_frameBase + offset, value);

}

private:

uint8_t* m_frameBase;

Stack& m_stack;

};

} // namespace Probe

} // namespace JSC

#endif // ENABLE(ASSEMBLER)

WebKit/Source/JavaScriptCore/assembler/ProbeFrame.h at main · WebKit/WebKit · GitHub

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