6bb1cadd56
that builds the following additional llvm/clang tools: - bugpoint - llc - lli - llvm-ar - llvm-as - llvm-bcanalyzer - llvm-diff - llvm-dis - llvm-extract - llvm-ld - llvm-link - llvm-mc - llvm-nm - llvm-objdump - llvm-prof - llvm-ranlib - llvm-rtdyld - llvm-stub - macho-dump - opt These tools are mainly useful for people that want to manipulate llvm bitcode (.bc) and llvm assembly language (.ll) files, or want to tinker with llvm and clang themselves. MFC after: 2 weeks
101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
//===-- MCFunction.h ------------------------------------------------------===//
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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 defines the data structures to hold a CFG reconstructed from
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// machine code.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_OBJECTDUMP_MCFUNCTION_H
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#define LLVM_OBJECTDUMP_MCFUNCTION_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/DenseSet.h"
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#include "llvm/MC/MCInst.h"
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#include <map>
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namespace llvm {
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class MCDisassembler;
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class MCInstrAnalysis;
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class MemoryObject;
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class raw_ostream;
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/// MCDecodedInst - Small container to hold an MCInst and associated info like
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/// address and size.
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struct MCDecodedInst {
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uint64_t Address;
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uint64_t Size;
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MCInst Inst;
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MCDecodedInst() {}
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MCDecodedInst(uint64_t Address, uint64_t Size, MCInst Inst)
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: Address(Address), Size(Size), Inst(Inst) {}
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bool operator<(const MCDecodedInst &RHS) const {
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return Address < RHS.Address;
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}
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};
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/// MCBasicBlock - Consists of multiple MCDecodedInsts and a list of successing
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/// MCBasicBlocks.
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class MCBasicBlock {
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std::vector<MCDecodedInst> Insts;
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typedef DenseSet<uint64_t> SetTy;
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SetTy Succs;
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public:
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ArrayRef<MCDecodedInst> getInsts() const { return Insts; }
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typedef SetTy::const_iterator succ_iterator;
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succ_iterator succ_begin() const { return Succs.begin(); }
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succ_iterator succ_end() const { return Succs.end(); }
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bool contains(uint64_t Addr) const { return Succs.count(Addr); }
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void addInst(const MCDecodedInst &Inst) { Insts.push_back(Inst); }
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void addSucc(uint64_t Addr) { Succs.insert(Addr); }
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bool operator<(const MCBasicBlock &RHS) const {
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return Insts.size() < RHS.Insts.size();
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}
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};
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/// MCFunction - Represents a named function in machine code, containing
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/// multiple MCBasicBlocks.
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class MCFunction {
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const StringRef Name;
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// Keep BBs sorted by address.
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typedef std::vector<std::pair<uint64_t, MCBasicBlock> > MapTy;
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MapTy Blocks;
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public:
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MCFunction(StringRef Name) : Name(Name) {}
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// Create an MCFunction from a region of binary machine code.
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static MCFunction
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createFunctionFromMC(StringRef Name, const MCDisassembler *DisAsm,
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const MemoryObject &Region, uint64_t Start, uint64_t End,
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const MCInstrAnalysis *Ana, raw_ostream &DebugOut,
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SmallVectorImpl<uint64_t> &Calls);
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typedef MapTy::const_iterator iterator;
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iterator begin() const { return Blocks.begin(); }
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iterator end() const { return Blocks.end(); }
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StringRef getName() const { return Name; }
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MCBasicBlock &addBlock(uint64_t Address, const MCBasicBlock &BB) {
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Blocks.push_back(std::make_pair(Address, BB));
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return Blocks.back().second;
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}
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};
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}
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#endif
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