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#pragma once
#include "Code/Output.h"
#include "Core/GcCode.h"
namespace code {
class Binary;
namespace x64 {
STORM_PKG(core.asm.x64);
/**
* Version of the LabelOutput class that keeps track of the size of the exception metadata.
*/
class WindowsLabelOut : public LabelOutput {
STORM_CLASS;
public:
STORM_CTOR WindowsLabelOut();
// Number of slots required for unwind codes.
Nat unwindCount;
// Length of prolog in bytes.
Nat prologSize;
// Additional members for the metadata we care about:
virtual void STORM_FN markSaved(Reg reg, Offset offset);
virtual void STORM_FN markFrameAlloc(Offset size);
virtual void STORM_FN markPrologEnd();
};
/**
* Output class specific to Windows. Stores Windows-specific exception handling data.
*/
class WindowsCodeOut : public CodeOutput {
STORM_CLASS;
public:
STORM_CTOR WindowsCodeOut(Binary *owner, WindowsLabelOut *size);
virtual void STORM_FN putByte(Byte b);
virtual void STORM_FN putInt(Nat w);
virtual void STORM_FN putLong(Word w);
virtual void STORM_FN putPtr(Word w);
virtual void STORM_FN align(Nat to);
virtual void putGc(GcCodeRef::Kind kind, Nat size, Word w);
virtual void markGc(GcCodeRef::Kind kind, Nat size, Word w);
virtual void STORM_FN putGcPtr(Word w);
virtual void STORM_FN putGcRelative(Word w);
virtual void STORM_FN putRelativeStatic(Word w);
virtual void STORM_FN putPtrSelf(Word w);
virtual Nat STORM_FN tell() const;
virtual void *codePtr() const;
virtual void STORM_FN markSaved(Reg reg, Offset offset);
virtual void STORM_FN markFrameAlloc(Offset size);
protected:
virtual void STORM_FN markLabel(Nat id);
virtual void STORM_FN markGcRef(Ref ref);
virtual void STORM_FN markRef(OffsetRef ref, Nat ptr);
virtual Nat STORM_FN labelOffset(Nat id);
virtual Nat STORM_FN toRelative(Nat id);
private:
// Our owner. Used to create proper references.
Binary *owner;
// Updaters in the code.
Array<TObject *> *codeRefs;
// Code we're writing to.
UNKNOWN(PTR_GC) byte *code;
// Position in the code.
Nat pos;
// Size of the code.
Nat size;
// First free ref.
Nat ref;
// Position inside the metadata (byte offsets).
Nat metaPos;
// Label offsets, computed from before.
Array<Nat> *labels;
};
}
}
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