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//===-- PIC16TargetObjectFile.h - PIC16 Object Info -------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TARGET_PIC16_TARGETOBJECTFILE_H
#define LLVM_TARGET_PIC16_TARGETOBJECTFILE_H
#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/ADT/StringMap.h"
#include <vector>
#include <string>
namespace llvm {
class GlobalVariable;
class Module;
class PIC16TargetMachine;
class MCSectionPIC16;
enum { DataBankSize = 80 };
/// PIC16 Splits the global data into mulitple udata and idata sections.
/// Each udata and idata section needs to contain a list of globals that
/// they contain, in order to avoid scanning over all the global values
/// again and printing only those that match the current section.
/// Keeping values inside the sections make printing a section much easier.
///
/// FIXME: MOVE ALL THIS STUFF TO MCSectionPIC16.
///
struct PIC16Section {
const MCSectionPIC16 *S_; // Connection to actual Section.
unsigned Size; // Total size of the objects contained.
bool SectionPrinted;
std::vector<const GlobalVariable*> Items;
PIC16Section(const MCSectionPIC16 *s) {
S_ = s;
Size = 0;
SectionPrinted = false;
}
bool isPrinted() const { return SectionPrinted; }
void setPrintedStatus(bool status) { SectionPrinted = status; }
};
class PIC16TargetObjectFile : public TargetLoweringObjectFile {
/// SectionsByName - Bindings of names to allocated sections.
mutable StringMap<MCSectionPIC16*> SectionsByName;
const TargetMachine *TM;
const MCSectionPIC16 *getPIC16Section(const char *Name,
SectionKind K) const;
public:
mutable std::vector<PIC16Section*> BSSSections;
mutable std::vector<PIC16Section*> IDATASections;
mutable std::vector<PIC16Section*> AutosSections;
mutable std::vector<PIC16Section*> ROSections;
mutable PIC16Section *ExternalVarDecls;
mutable PIC16Section *ExternalVarDefs;
PIC16TargetObjectFile();
~PIC16TargetObjectFile();
void Initialize(MCContext &Ctx, const TargetMachine &TM);
virtual const MCSection *
getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
Mangler *Mang, const TargetMachine &TM) const;
virtual const MCSection *SelectSectionForGlobal(const GlobalValue *GV,
SectionKind Kind,
Mangler *Mang,
const TargetMachine&) const;
const MCSection *getSectionForFunction(const std::string &FnName,
bool isInterrupt=false) const;
const MCSection *getSectionForFunctionFrame(const std::string &FnName)const;
// If the current function is cloned then create the new autos section
// also.
void createClonedSectionForAutos(const std::string &SecName);
private:
std::string getSectionNameForSym(const std::string &Sym) const;
const MCSection *getBSSSectionForGlobal(const GlobalVariable *GV) const;
const MCSection *getIDATASectionForGlobal(const GlobalVariable *GV) const;
const MCSection *getSectionForAuto(const GlobalVariable *GV) const;
const MCSection *CreateBSSSectionForGlobal(const GlobalVariable *GV,
std::string Addr = "") const;
const MCSection *CreateIDATASectionForGlobal(const GlobalVariable *GV,
std::string Addr = "") const;
const MCSection *getROSectionForGlobal(const GlobalVariable *GV) const;
const MCSection *CreateROSectionForGlobal(const GlobalVariable *GV,
std::string Addr = "") const;
const MCSection *CreateSectionForGlobal(const GlobalVariable *GV,
Mangler *Mang,
const std::string &Addr = "") const;
public:
void SetSectionForGVs(Module &M);
const std::vector<PIC16Section*> &getBSSSections() const {
return BSSSections;
}
const std::vector<PIC16Section*> &getIDATASections() const {
return IDATASections;
}
const std::vector<PIC16Section*> &getAutosSections() const {
return AutosSections;
}
const std::vector<PIC16Section*> &getROSections() const {
return ROSections;
}
};
} // end namespace llvm
#endif
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