mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-01 08:23:21 +01:00
69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
//===-- llvm/MC/MCAtom.h - MCAtom class ---------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file contains the declaration of the MCAtom class, which is used to
|
|
// represent a contiguous region in a decoded object that is uniformly data or
|
|
// instructions;
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_MC_MCATOM_H
|
|
#define LLVM_MC_MCATOM_H
|
|
|
|
#include "llvm/MC/MCInst.h"
|
|
#include "llvm/Support/DataTypes.h"
|
|
#include <vector>
|
|
|
|
namespace llvm {
|
|
|
|
class MCModule;
|
|
|
|
/// MCData - An entry in a data MCAtom.
|
|
// NOTE: This may change to a more complex type in the future.
|
|
typedef uint8_t MCData;
|
|
|
|
/// MCAtom - Represents a contiguous range of either instructions (a TextAtom)
|
|
/// or data (a DataAtom). Address ranges are expressed as _closed_ intervals.
|
|
class MCAtom {
|
|
friend class MCModule;
|
|
typedef enum { TextAtom, DataAtom } AtomType;
|
|
|
|
AtomType Type;
|
|
MCModule *Parent;
|
|
uint64_t Begin, End;
|
|
|
|
std::vector<std::pair<uint64_t, MCInst> > Text;
|
|
std::vector<MCData> Data;
|
|
|
|
// Private constructor - only callable by MCModule
|
|
MCAtom(AtomType T, MCModule *P, uint64_t B, uint64_t E)
|
|
: Type(T), Parent(P), Begin(B), End(E) { }
|
|
|
|
public:
|
|
bool isTextAtom() { return Type == TextAtom; }
|
|
bool isDataAtom() { return Type == DataAtom; }
|
|
|
|
void addInst(const MCInst &I, uint64_t Address, unsigned Size);
|
|
void addData(const MCData &D);
|
|
|
|
/// split - Splits the atom in two at a given address, which must align with
|
|
/// and instruction boundary if this is a TextAtom. Returns the newly created
|
|
/// atom representing the high part of the split.
|
|
MCAtom *split(uint64_t SplitPt);
|
|
|
|
/// truncate - Truncates an atom so that TruncPt is the last byte address
|
|
/// contained in the atom.
|
|
void truncate(uint64_t TruncPt);
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|
|
|