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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80670 91177308-0d34-0410-b5e6-96231b3b80d8
89 lines
3.2 KiB
C++
89 lines
3.2 KiB
C++
//===- MCSectionPIC16.h - PIC16-specific section representation -*- C++ -*-===//
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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 declares the MCSectionPIC16 class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_PIC16SECTION_H
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#define LLVM_PIC16SECTION_H
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#include "llvm/MC/MCSection.h"
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namespace llvm {
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/// MCSectionPIC16 - Represents a physical section in PIC16 COFF.
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/// Contains data objects.
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///
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class MCSectionPIC16 : public MCSection {
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/// Name of the section to uniquely identify it.
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std::string Name;
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/// User can specify an address at which a section should be placed.
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/// Negative value here means user hasn't specified any.
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int Address;
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/// Overlay information - Sections with same color can be overlaid on
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/// one another.
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int Color;
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/// Conatined data objects.
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std::vector<const GlobalVariable *>Items;
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/// Total size of all data objects contained here.
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unsigned Size;
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MCSectionPIC16(const StringRef &name, SectionKind K, int addr, int color)
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: MCSection(K), Name(name), Address(addr), Color(color) {
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}
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public:
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/// Return the name of the section.
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const std::string &getName() const { return Name; }
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/// Return the Address of the section.
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int getAddress() const { return Address; }
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/// Return the Color of the section.
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int getColor() const { return Color; }
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/// PIC16 Terminology for section kinds is as below.
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/// UDATA - BSS
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/// IDATA - initialized data (equiv to Metadata)
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/// ROMDATA - ReadOnly.
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/// UDATA_OVR - Sections that can be overlaid. Section of such type is
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/// used to contain function autos an frame. We can think of
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/// it as equiv to llvm ThreadBSS)
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/// So, let's have some convenience functions to Map PIC16 Section types
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/// to SectionKind just for the sake of better readability.
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static SectionKind UDATA_Kind() { return SectionKind::getBSS(); }
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static SectionKind IDATA_Kind() { return SectionKind::getMetadata(); }
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static SectionKind ROMDATA_Kind() { return SectionKind::getReadOnly(); }
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static SectionKind UDATA_OVR_Kind() { return SectionKind::getThreadBSS(); }
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// If we could just do getKind() == UDATA_Kind() ?
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bool isUDATA_Kind() { return getKind().isBSS(); }
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bool isIDATA_Kind() { return getKind().isMetadata(); }
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bool isROMDATA_Kind() { return getKind().isMetadata(); }
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bool isUDATA_OVR_Kind() { return getKind().isThreadBSS(); }
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/// This would be the only way to create a section.
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static MCSectionPIC16 *Create(const StringRef &Name, SectionKind K,
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int Address, int Color, MCContext &Ctx);
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/// Override this as PIC16 has its own way of printing switching
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/// to a section.
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virtual void PrintSwitchToSection(const MCAsmInfo &MAI,
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raw_ostream &OS) const;
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};
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} // end namespace llvm
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#endif
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