1 files changed, 25 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
index ea980dfda17..bf643c01007 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
@@ -227,12 +227,33 @@ public:
 
   void constructAbstractSubprogramScopeDIE(LexicalScope *Scope);
 
+  /// This takes the official DWARF 5 tag and returns the appropriate
+  /// GNU tag if needed.
+  dwarf::Tag getDwarf5OrGNUCallSiteTag(dwarf::Tag Tag) const;
+  /// This takes the official DWARF 5 attribute and returns the appropriate
+  /// GNU attribute if needed.
+  dwarf::Attribute getDwarf5OrGNUCallSiteAttr(dwarf::Attribute Attr) const;
+
   /// Construct a call site entry DIE describing a call within \p Scope to a
-  /// callee described by \p CalleeSP. \p IsTail specifies whether the call is
-  /// a tail call. \p PCOffset must be non-zero for non-tail calls or be the
+  /// callee described by \p CalleeSP.
+  /// \p IsTail specifies whether the call is a tail call.
+  /// \p PCAddr (used for GDB + DWARF 4 tuning) points to the PC value after
+  /// the call instruction.
+  /// \p PCOffset (used for cases other than GDB + DWARF 4 tuning) must be
+  /// non-zero for non-tail calls (in the case of non-gdb tuning, since for
+  /// GDB + DWARF 5 tuning we still generate PC info for tail calls) or be the
   /// function-local offset to PC value after the call instruction.
-  DIE &constructCallSiteEntryDIE(DIE &ScopeDIE, const DISubprogram &CalleeSP,
-                                 bool IsTail, const MCExpr *PCOffset);
+  /// \p CallReg is a register location for an indirect call. For direct calls
+  /// the \p CallReg is set to 0.
+  DIE &constructCallSiteEntryDIE(DIE &ScopeDIE, const DISubprogram *CalleeSP,
+                                 bool IsTail, const MCSymbol *PCAddr,
+                                 const MCExpr *PCOffset, unsigned CallReg);
+  /// Construct call site parameter DIEs for the \p CallSiteDIE. The \p Params
+  /// were collected by the \ref collectCallSiteParameters.
+  /// Note: The order of parameters does not matter, since debuggers recognize
+  ///       call site parameters by the DW_AT_location attribute.
+  void constructCallSiteParmEntryDIEs(DIE &CallSiteDIE,
+                                      SmallVector<DbgCallSiteParam, 4> &Params);
 
   /// Construct import_module DIE.
   DIE *constructImportedEntityDIE(const DIImportedEntity *Module);