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59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
//===-- llvm/MC/MCModule.h - MCModule class ---------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the declaration of the MCModule class, which is used to
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// represent a complete, disassembled object file or executable.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_MC_MCMODULE_H
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#define LLVM_MC_MCMODULE_H
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/IntervalMap.h"
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#include "llvm/ADT/SmallPtrSet.h"
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#include "llvm/Support/DataTypes.h"
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namespace llvm {
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class MCAtom;
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/// MCModule - This class represent a completely disassembled object file or
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/// executable. It comprises a list of MCAtom's, and a branch target table.
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/// Each atom represents a contiguous range of either instructions or data.
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class MCModule {
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/// AtomAllocationTracker - An MCModule owns its component MCAtom's, so it
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/// must track them in order to ensure they are properly freed as atoms are
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/// merged or otherwise manipulated.
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SmallPtrSet<MCAtom*, 8> AtomAllocationTracker;
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/// OffsetMap - Efficiently maps offset ranges to MCAtom's.
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IntervalMap<uint64_t, MCAtom*> OffsetMap;
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/// BranchTargetMap - Maps offsets that are determined to be branches and
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/// can be statically resolved to their target offsets.
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DenseMap<uint64_t, MCAtom*> BranchTargetMap;
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friend class MCAtom;
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/// remap - Update the interval mapping for an MCAtom.
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void remap(MCAtom *Atom, uint64_t NewBegin, uint64_t NewEnd);
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public:
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MCModule(IntervalMap<uint64_t, MCAtom*>::Allocator &A) : OffsetMap(A) { }
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/// createAtom - Creates a new MCAtom covering the specified offset range.
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MCAtom *createAtom(MCAtom::AtomType Type, uint64_t Begin, uint64_t End);
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};
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}
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#endif
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