From e81d9d49145e432d917eea3a70d2ae74dcad1d89 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Wed, 30 Dec 2015 11:55:28 +0000
Subject: Vendor import of stripped lldb trunk r256633:
 https://llvm.org/svn/llvm-project/lldb/trunk@256633

---
 source/Plugins/SymbolFile/DWARF/DIERef.cpp | 56 ++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 source/Plugins/SymbolFile/DWARF/DIERef.cpp

(limited to 'source/Plugins/SymbolFile/DWARF/DIERef.cpp')

diff --git a/source/Plugins/SymbolFile/DWARF/DIERef.cpp b/source/Plugins/SymbolFile/DWARF/DIERef.cpp
new file mode 100644
index 0000000000000..c0754a1fdd542
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DIERef.cpp
@@ -0,0 +1,56 @@
+//===-- DIERef.cpp ----------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "DIERef.h"
+#include "DWARFCompileUnit.h"
+#include "DWARFFormValue.h"
+
+DIERef::DIERef() :
+    cu_offset(DW_INVALID_OFFSET),
+    die_offset(DW_INVALID_OFFSET)
+{}
+
+DIERef::DIERef(dw_offset_t d) :
+    cu_offset(DW_INVALID_OFFSET),
+    die_offset(d)
+{}
+
+DIERef::DIERef(dw_offset_t c, dw_offset_t d) :
+    cu_offset(c),
+    die_offset(d)
+{}
+
+DIERef::DIERef(lldb::user_id_t uid) :
+    cu_offset(uid>>32),
+    die_offset(uid&0xffffffff)
+{}
+
+DIERef::DIERef(const DWARFFormValue& form_value) :
+    cu_offset(DW_INVALID_OFFSET),
+    die_offset(DW_INVALID_OFFSET)
+{
+    if (form_value.IsValid())
+    {
+        const DWARFCompileUnit* dwarf_cu = form_value.GetCompileUnit();
+        if (dwarf_cu)
+        {
+            if (dwarf_cu->GetBaseObjOffset() != DW_INVALID_OFFSET)
+                cu_offset = dwarf_cu->GetBaseObjOffset();
+            else
+                cu_offset = dwarf_cu->GetOffset();
+        }
+        die_offset = form_value.Reference();
+    }
+}
+
+lldb::user_id_t
+DIERef::GetUID() const
+{
+    return ((lldb::user_id_t)cu_offset) << 32 | die_offset;
+}
-- 
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