[MC/Dwarf] Allow to specify custom parameters for linetable emission.

[oota-llvm.git] / include / llvm / MC / MCSectionELF.h

diff --git a/include/llvm/MC/MCSectionELF.h b/include/llvm/MC/MCSectionELF.h
index deb95f8d949d259eefcf0c8966584f4e211c52d1..f6730371fe155d69a0df59efb8c108113522d97a 100644 (file)
--- a/include/llvm/MC/MCSectionELF.h
+++ b/include/llvm/MC/MCSectionELF.h
@@ -16,7 +16,7 @@
 
 #include "llvm/ADT/Twine.h"
 #include "llvm/MC/MCSection.h"
-#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCSymbolELF.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/ELF.h"
 #include "llvm/Support/raw_ostream.h"
@@ -39,22 +39,30 @@ class MCSectionELF : public MCSection {
   /// below.
   unsigned Flags;
 
-  bool Unique;
+  unsigned UniqueID;
 
   /// 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;
+  const MCSymbolELF *Group;
+
+  /// Depending on the type of the section this is sh_link or sh_info.
+  const MCSectionELF *Associated;
 
 private:
   friend class MCContext;
   MCSectionELF(StringRef Section, unsigned type, unsigned flags, SectionKind K,
-               unsigned entrySize, const MCSymbol *group, bool Unique)
-      : MCSection(SV_ELF, K), SectionName(Section), Type(type), Flags(flags),
-        Unique(Unique), EntrySize(entrySize), Group(group) {}
-  ~MCSectionELF();
+               unsigned entrySize, const MCSymbolELF *group, unsigned UniqueID,
+               MCSymbol *Begin, const MCSectionELF *Associated)
+      : MCSection(SV_ELF, K, Begin), SectionName(Section), Type(type),
+        Flags(flags), UniqueID(UniqueID), EntrySize(entrySize), Group(group),
+        Associated(Associated) {
+    if (Group)
+      Group->setIsSignature();
+  }
+  ~MCSectionELF() override;
 
   void setSectionName(StringRef Name) { SectionName = Name; }
 
@@ -68,13 +76,18 @@ public:
   unsigned getType() const { return Type; }
   unsigned getFlags() const { return Flags; }
   unsigned getEntrySize() const { return EntrySize; }
-  const MCSymbol *getGroup() const { return Group; }
+  const MCSymbolELF *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;
 
+  bool isUnique() const { return UniqueID != ~0U; }
+  unsigned getUniqueID() const { return UniqueID; }
+
+  const MCSectionELF *getAssociatedSection() const { return Associated; }
+
   static bool classof(const MCSection *S) {
     return S->getVariant() == SV_ELF;
   }