1 files changed, 103 insertions, 0 deletions
diff --git a/include/llvm/MC/MCSectionELF.h b/include/llvm/MC/MCSectionELF.h
new file mode 100644
index 0000000..5ec23f1
--- /dev/null
+++ b/include/llvm/MC/MCSectionELF.h
@@ -0,0 +1,103 @@
+//===- MCSectionELF.h - ELF Machine Code Sections ---------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the MCSectionELF class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_MC_MCSECTIONELF_H
+#define LLVM_MC_MCSECTIONELF_H
+
+#include "llvm/ADT/Twine.h"
+#include "llvm/MC/MCSection.h"
+#include "llvm/MC/MCSymbol.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/ELF.h"
+#include "llvm/Support/raw_ostream.h"
+
+namespace llvm {
+
+class MCSymbol;
+
+/// MCSectionELF - This represents a section on linux, lots of unix variants
+/// and some bare metal systems.
+class MCSectionELF : public MCSection {
+  /// SectionName - This is the name of the section.  The referenced memory is
+  /// owned by TargetLoweringObjectFileELF's ELFUniqueMap.
+  StringRef SectionName;
+
+  /// Type - This is the sh_type field of a section, drawn from the enums below.
+  unsigned Type;
+
+  /// Flags - This is the sh_flags field of a section, drawn from the enums.
+  /// below.
+  unsigned Flags;
+
+  /// EntrySize - The size of each entry in this section. This size only
+  /// makes sense for sections that contain fixed-sized entries. If a
+  /// section does not contain fixed-sized entries 'EntrySize' will be 0.
+  unsigned EntrySize;
+
+  const MCSymbol *Group;
+
+private:
+  friend class MCContext;
+  MCSectionELF(StringRef Section, unsigned type, unsigned flags,
+               SectionKind K, unsigned entrySize, const MCSymbol *group)
+    : MCSection(SV_ELF, K), SectionName(Section), Type(type), Flags(flags),
+      EntrySize(entrySize), Group(group) {}
+  ~MCSectionELF();
+
+  void setSectionName(StringRef Name) { SectionName = Name; }
+
+public:
+
+  /// ShouldOmitSectionDirective - Decides whether a '.section' directive
+  /// should be printed before the section name
+  bool ShouldOmitSectionDirective(StringRef Name, const MCAsmInfo &MAI) const;
+
+  StringRef getSectionName() const { return SectionName; }
+  std::string getLabelBeginName() const override {
+    if (Group)
+      return (SectionName.str() + '_' + Group->getName() + "_begin").str();
+    return SectionName.str() + "_begin";
+  }
+  std::string getLabelEndName() const override {
+    if (Group)
+      return (SectionName.str() + '_' + Group->getName() + "_end").str();
+    return SectionName.str() + "_end";
+  }
+  unsigned getType() const { return Type; }
+  unsigned getFlags() const { return Flags; }
+  unsigned getEntrySize() const { return EntrySize; }
+  const MCSymbol *getGroup() const { return Group; }
+
+  void PrintSwitchToSection(const MCAsmInfo &MAI, raw_ostream &OS,
+                            const MCExpr *Subsection) const override;
+  bool UseCodeAlign() const override;
+  bool isVirtualSection() const override;
+
+  /// isBaseAddressKnownZero - We know that non-allocatable sections (like
+  /// debug info) have a base of zero.
+  bool isBaseAddressKnownZero() const override {
+    return (getFlags() & ELF::SHF_ALLOC) == 0;
+  }
+
+  static bool classof(const MCSection *S) {
+    return S->getVariant() == SV_ELF;
+  }
+
+  // Return the entry size for sections with fixed-width data.
+  static unsigned DetermineEntrySize(SectionKind Kind);
+
+};
+
+} // end namespace llvm
+
+#endif