SymbolTableBuilder.h

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//===- SymbolTableBuilder.h -- Symbol Table builder-----------------------//
//
//                     SVF: Static Value-Flow Analysis
//
// Copyright (C) <2013->  <Yulei Sui>
//
 
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
 
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
//
//===----------------------------------------------------------------------===//
 
/*
 * SymbolTableBuilder.h
 *
 *  Created on: Apr 28, 2014
 *      Author: Yulei
 */
 
#ifndef SymbolTableBuilder_H_
#define SymbolTableBuilder_H_
 
#include "SVF-LLVM/LLVMModule.h"
#include "SVFIR/SymbolTableInfo.h"
 
/*
* This class is to build SymbolTableInfo, MemObjs and ObjTypeInfo
*/
namespace SVF
{
 
class ObjTypeInference;
 
class SymbolTableBuilder
{
    friend class SVFIRBuilder;
private:
    SymbolTableInfo* symInfo;
 
public:
    SymbolTableBuilder(SymbolTableInfo* si): symInfo(si)
    {
    }
 
    void buildMemModel(SVFModule* svfModule);
 
    u32_t getNumOfElements(const Type* ety);
 
 
protected:
 
 
    void collectSVFTypeInfo(const Value* val);
 
    void collectSym(const Value* val);
 
    void collectVal(const Value* val);
 
    void collectObj(const Value* val);
 
    void collectRet(const Function* val);
 
    void collectVararg(const Function* val);
 
    // @{
    void handleGlobalCE(const GlobalVariable *G);
    void handleGlobalInitializerCE(const Constant *C);
    void handleCE(const Value* val);
    // @}
 
 
    ObjTypeInference* getTypeInference();
 
    const Type* inferObjType(const Value *startValue);
 
 
    const Type *inferTypeOfHeapObjOrStaticObj(const Instruction* inst);
 
 
    ObjTypeInfo* createObjTypeInfo(const Value* val);
 
    void initTypeInfo(ObjTypeInfo* typeinfo, const Value* value, const Type* ty);
    void analyzeObjType(ObjTypeInfo* typeinfo, const Value* val);
    u32_t analyzeHeapObjType(ObjTypeInfo* typeinfo, const Value* val);
    void analyzeStaticObjType(ObjTypeInfo* typeinfo, const Value* val);
 
    u32_t analyzeHeapAllocByteSize(const Value* val);
 
    u32_t getNumOfFlattenElements(const Type* T);
 
    StInfo* getOrAddSVFTypeInfo(const Type* T);
 
    MemObj* createBlkObj(SymID symId);
 
    MemObj* createConstantObj(SymID symId);
};
 
} // End namespace SVF
 
#endif /* SymbolTableBuilder_H_ */