diff options
Diffstat (limited to 'lib/Target/PIC16/PIC16TargetObjectFile.h')
| -rw-r--r-- | lib/Target/PIC16/PIC16TargetObjectFile.h | 163 |
1 files changed, 101 insertions, 62 deletions
diff --git a/lib/Target/PIC16/PIC16TargetObjectFile.h b/lib/Target/PIC16/PIC16TargetObjectFile.h index 75f6cce..ca07bed 100644 --- a/lib/Target/PIC16/PIC16TargetObjectFile.h +++ b/lib/Target/PIC16/PIC16TargetObjectFile.h @@ -10,6 +10,8 @@ #ifndef LLVM_TARGET_PIC16_TARGETOBJECTFILE_H #define LLVM_TARGET_PIC16_TARGETOBJECTFILE_H +#include "PIC16.h" +#include "PIC16ABINames.h" #include "llvm/Target/TargetLoweringObjectFile.h" #include "llvm/ADT/StringMap.h" #include <vector> @@ -19,7 +21,7 @@ namespace llvm { class GlobalVariable; class Module; class PIC16TargetMachine; - class MCSectionPIC16; + class PIC16Section; enum { DataBankSize = 80 }; @@ -29,91 +31,128 @@ namespace llvm { /// 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. + /// FIXME: MOVE ALL THIS STUFF TO PIC16Section. /// - 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; } - }; - + + /// PIC16TargetObjectFile - PIC16 Object file. Contains data and code + /// sections. + // PIC16 Object File has two types of sections. + // 1. Standard Sections + // 1.1 un-initialized global data + // 1.2 initialized global data + // 1.3 program memory data + // 1.4 local variables of functions. + // 2. User defined sections + // 2.1 Objects placed in a specific section. (By _Section() macro) + // 2.2 Objects placed at a specific address. (By _Address() macro) class PIC16TargetObjectFile : public TargetLoweringObjectFile { /// SectionsByName - Bindings of names to allocated sections. - mutable StringMap<MCSectionPIC16*> SectionsByName; + mutable StringMap<PIC16Section*> SectionsByName; const TargetMachine *TM; - const MCSectionPIC16 *getPIC16Section(const char *Name, - SectionKind K, - int Address = -1, - int Color = -1) 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; + /// Lists of sections. + /// Standard Data Sections. + mutable std::vector<PIC16Section *> UDATASections_; + mutable std::vector<PIC16Section *> IDATASections_; + mutable PIC16Section * ROMDATASection_; + + /// Standard Auto Sections. + mutable std::vector<PIC16Section *> AUTOSections_; + + /// User specified sections. + mutable std::vector<PIC16Section *> USERSections_; + + + /// Find or Create a PIC16 Section, without adding it to any + /// section list. + PIC16Section *getPIC16Section(const std::string &Name, + PIC16SectionType Ty, + const std::string &Address = "", + int Color = -1) const; + + /// Convenience functions. These wrappers also take care of adding + /// the newly created section to the appropriate sections list. + + /// Find or Create PIC16 Standard Data Section. + PIC16Section *getPIC16DataSection(const std::string &Name, + PIC16SectionType Ty, + const std::string &Address = "", + int Color = -1) const; + + /// Find or Create PIC16 Standard Auto Section. + PIC16Section *getPIC16AutoSection(const std::string &Name, + PIC16SectionType Ty = UDATA_OVR, + const std::string &Address = "", + int Color = -1) const; + + /// Find or Create PIC16 Standard Auto Section. + PIC16Section *getPIC16UserSection(const std::string &Name, + PIC16SectionType Ty, + const std::string &Address = "", + int Color = -1) const; + + /// Allocate Un-initialized data to a standard UDATA section. + const MCSection *allocateUDATA(const GlobalVariable *GV) const; + + /// Allocate Initialized data to a standard IDATA section. + const MCSection *allocateIDATA(const GlobalVariable *GV) const; + /// Allocate ROM data to the standard ROMDATA section. + const MCSection *allocateROMDATA(const GlobalVariable *GV) const; + + /// Allocate an AUTO variable to an AUTO section. + const MCSection *allocateAUTO(const GlobalVariable *GV) const; + + /// Allocate DATA in user specified section. + const MCSection *allocateInGivenSection(const GlobalVariable *GV) const; + + /// Allocate DATA at user specified address. + const MCSection *allocateAtGivenAddress(const GlobalVariable *GV, + const std::string &Addr) const; + + public: PIC16TargetObjectFile(); ~PIC16TargetObjectFile(); - void Initialize(MCContext &Ctx, const TargetMachine &TM); - + /// Return the section with the given Name. Null if not found. + PIC16Section *findPIC16Section(const std::string &Name); + + /// Override section allocations for user specified sections. virtual const MCSection * getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind, Mangler *Mang, const TargetMachine &TM) const; + /// Select sections for Data and Auto variables(globals). virtual const MCSection *SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind, Mangler *Mang, const TargetMachine&) const; - const MCSection *getSectionForFunction(const std::string &FnName) const; - const MCSection *getSectionForFunctionFrame(const std::string &FnName)const; - - - 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; + + /// Return a code section for a function. + const PIC16Section *SectionForCode (const std::string &FnName) const; + + /// Return a frame section for a function. + const PIC16Section *SectionForFrame (const std::string &FnName) const; + + /// Accessors for various section lists. + const std::vector<PIC16Section *> &UDATASections() const { + return UDATASections_; } - const std::vector<PIC16Section*> &getIDATASections() const { - return IDATASections; + const std::vector<PIC16Section *> &IDATASections() const { + return IDATASections_; } - const std::vector<PIC16Section*> &getAutosSections() const { - return AutosSections; + const PIC16Section *ROMDATASection() const { + return ROMDATASection_; } - const std::vector<PIC16Section*> &getROSections() const { - return ROSections; + const std::vector<PIC16Section *> &AUTOSections() const { + return AUTOSections_; + } + const std::vector<PIC16Section *> &USERSections() const { + return USERSections_; } - }; } // end namespace llvm |
