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Diffstat (limited to 'contrib/llvm/lib/Target/PIC16/PIC16TargetObjectFile.h')
| -rw-r--r-- | contrib/llvm/lib/Target/PIC16/PIC16TargetObjectFile.h | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/PIC16/PIC16TargetObjectFile.h b/contrib/llvm/lib/Target/PIC16/PIC16TargetObjectFile.h new file mode 100644 index 0000000..b1eb9f9 --- /dev/null +++ b/contrib/llvm/lib/Target/PIC16/PIC16TargetObjectFile.h @@ -0,0 +1,168 @@ +//===-- 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 "PIC16.h" +#include "PIC16ABINames.h" +#include "llvm/Target/TargetLoweringObjectFile.h" +#include "llvm/ADT/StringMap.h" +#include <vector> +#include <string> + +namespace llvm { + class GlobalVariable; + class Module; + class PIC16TargetMachine; + class PIC16Section; + + 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 PIC16Section. + /// + + /// 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<PIC16Section*> SectionsByName; + + const TargetMachine *TM; + + /// Lists of sections. + /// Standard Data Sections. + mutable std::vector<PIC16Section *> UDATASections_; + mutable std::vector<PIC16Section *> IDATASections_; + mutable PIC16Section * ROMDATASection_; + mutable PIC16Section * SHAREDUDATASection_; + + /// 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; + + /// Allocate a shared variable to SHARED section. + const MCSection *allocateSHARED(const GlobalVariable *GV, + Mangler *Mang) 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) const; + + /// 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; + + + /// Return a code section for a function. + const PIC16Section *SectionForCode (const std::string &FnName, + bool isISR) 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 *> &IDATASections() const { + return IDATASections_; + } + const PIC16Section *ROMDATASection() const { + return ROMDATASection_; + } + const PIC16Section *SHAREDUDATASection() const { + return SHAREDUDATASection_; + } + const std::vector<PIC16Section *> &AUTOSections() const { + return AUTOSections_; + } + const std::vector<PIC16Section *> &USERSections() const { + return USERSections_; + } + }; +} // end namespace llvm + +#endif |
