-//===- PIC16Section.h - PIC16-specific section representation ---*- C++ -*-===//
+//===- MCSectionPIC16.h - PIC16-specific section representation -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
//
//===----------------------------------------------------------------------===//
//
-// This file declares the MCSection class.
+// This file declares the MCSectionPIC16 class.
//
//===----------------------------------------------------------------------===//
namespace llvm {
+ /// MCSectionPIC16 - Represents a physical section in PIC16 COFF.
+ /// Contains data objects.
+ ///
class MCSectionPIC16 : public MCSection {
+ /// Name of the section to uniquely identify it.
std::string Name;
+
+ /// User can specify an address at which a section should be placed.
+ /// Negative value here means user hasn't specified any.
+ int Address;
+
+ /// Overlay information - Sections with same color can be overlaid on
+ /// one another.
+ int Color;
+
+ /// Conatined data objects.
+ std::vector<const GlobalVariable *>Items;
+
+ /// Total size of all data objects contained here.
+ unsigned Size;
- MCSectionPIC16(const StringRef &name, SectionKind K)
- : MCSection(K), Name(name) {
+ MCSectionPIC16(const StringRef &name, SectionKind K, int addr, int color)
+ : MCSection(K), Name(name), Address(addr), Color(color) {
}
public:
-
+ /// Return the name of the section.
const std::string &getName() const { return Name; }
+
+ /// Return the Address of the section.
+ int getAddress() const { return Address; }
+
+ /// Return the Color of the section.
+ int getColor() const { return Color; }
+
+ /// PIC16 Terminology for section kinds is as below.
+ /// UDATA - BSS
+ /// IDATA - initialized data (equiv to Metadata)
+ /// ROMDATA - ReadOnly.
+ /// UDATA_OVR - Sections that can be overlaid. Section of such type is
+ /// used to contain function autos an frame. We can think of
+ /// it as equiv to llvm ThreadBSS)
+ /// So, let's have some convenience functions to Map PIC16 Section types
+ /// to SectionKind just for the sake of better readability.
+ static SectionKind UDATA_Kind() { return SectionKind::getBSS(); }
+ static SectionKind IDATA_Kind() { return SectionKind::getMetadata(); }
+ static SectionKind ROMDATA_Kind() { return SectionKind::getReadOnly(); }
+ static SectionKind UDATA_OVR_Kind() { return SectionKind::getThreadBSS(); }
+
+ // If we could just do getKind() == UDATA_Kind() ?
+ bool isUDATA_Kind() { return getKind().isBSS(); }
+ bool isIDATA_Kind() { return getKind().isMetadata(); }
+ bool isROMDATA_Kind() { return getKind().isMetadata(); }
+ bool isUDATA_OVR_Kind() { return getKind().isThreadBSS(); }
+
+ /// This would be the only way to create a section.
+ static MCSectionPIC16 *Create(const StringRef &Name, SectionKind K,
+ int Address, int Color, MCContext &Ctx);
- static MCSectionPIC16 *Create(const StringRef &Name,
- SectionKind K, MCContext &Ctx);
-
- virtual void PrintSwitchToSection(const TargetAsmInfo &TAI,
+ /// Override this as PIC16 has its own way of printing switching
+ /// to a section.
+ virtual void PrintSwitchToSection(const MCAsmInfo &MAI,
raw_ostream &OS) const;
};