1 //===- MCSectionPIC16.h - PIC16-specific section representation -*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares the MCSectionPIC16 class.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_PIC16SECTION_H
15 #define LLVM_PIC16SECTION_H
17 #include "llvm/MC/MCSection.h"
21 /// MCSectionPIC16 - Represents a physical section in PIC16 COFF.
22 /// Contains data objects.
24 class MCSectionPIC16 : public MCSection {
25 /// Name of the section to uniquely identify it.
28 /// User can specify an address at which a section should be placed.
29 /// Negative value here means user hasn't specified any.
32 /// FIXME: Keep overlay information here. uncomment the decl below.
33 /// Overlay information - Sections with same color can be overlaid on
35 /// std::string Color;
37 /// Conatined data objects.
38 std::vector<const GlobalVariable *>Items;
40 /// Total size of all data objects contained here.
43 MCSectionPIC16(const StringRef &name, SectionKind K, int addr)
44 : MCSection(K), Name(name), Address(addr) {
48 /// Return the name of the section.
49 const std::string &getName() const { return Name; }
51 /// Return the Address of the section.
52 int getAddress() const { return Address; }
54 /// PIC16 Terminology for section kinds is as below.
56 /// IDATA - initialized data (equiv to Metadata)
57 /// ROMDATA - ReadOnly.
58 /// UDATA_OVR - Sections that can be overlaid. Section of such type is
59 /// used to contain function autos an frame. We can think of
60 /// it as equiv to llvm ThreadBSS)
61 /// So, let's have some convenience functions to Map PIC16 Section types
62 /// to SectionKind just for the sake of better readability.
63 static SectionKind UDATA_Kind() { return SectionKind::getBSS(); }
64 static SectionKind IDATA_Kind() { return SectionKind::getMetadata(); }
65 static SectionKind ROMDATA_Kind() { return SectionKind::getReadOnly(); }
66 static SectionKind UDATA_OVR_Kind() { return SectionKind::getThreadBSS(); }
68 // If we could just do getKind() == UDATA_Kind() ?
69 bool isUDATA_Kind() { return getKind().isBSS(); }
70 bool isIDATA_Kind() { return getKind().isMetadata(); }
71 bool isROMDATA_Kind() { return getKind().isMetadata(); }
72 bool isUDATA_OVR_Kind() { return getKind().isThreadBSS(); }
74 /// This would be the only way to create a section.
75 static MCSectionPIC16 *Create(const StringRef &Name, SectionKind K,
76 int Address, MCContext &Ctx);
78 /// Override this as PIC16 has its own way of printing switching
80 virtual void PrintSwitchToSection(const MCAsmInfo &MAI,
81 raw_ostream &OS) const;
84 } // end namespace llvm