1 files changed, 132 insertions, 0 deletions
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDebugMacinfoEntry.cpp b/source/Plugins/SymbolFile/DWARF/DWARFDebugMacinfoEntry.cpp
new file mode 100644
index 000000000000..5cd9cb6be474
--- /dev/null
+++ b/source/Plugins/SymbolFile/DWARF/DWARFDebugMacinfoEntry.cpp
@@ -0,0 +1,132 @@
+//===-- DWARFDebugMacinfoEntry.cpp ------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "DWARFDebugMacinfoEntry.h"
+
+#include "lldb/Core/Stream.h"
+
+using namespace lldb_private;
+using namespace std;
+
+DWARFDebugMacinfoEntry::DWARFDebugMacinfoEntry() :
+    m_type_code(0),
+    m_line(0),
+    m_op2()
+{
+    m_op2.cstr = NULL;
+}
+
+DWARFDebugMacinfoEntry::~DWARFDebugMacinfoEntry()
+{
+}
+
+const char*
+DWARFDebugMacinfoEntry::GetCString() const
+{
+    switch (m_type_code)
+    {
+    case 0:
+    case DW_MACINFO_start_file:
+    case DW_MACINFO_end_file:
+        return NULL;
+    default:
+        break;
+    }
+    return m_op2.cstr;
+}
+
+
+
+void
+DWARFDebugMacinfoEntry::Dump(Stream *s) const
+{
+    if (m_type_code)
+    {
+        s->PutCString(DW_MACINFO_value_to_name(m_type_code));
+
+        switch (m_type_code)
+        {
+        case DW_MACINFO_define:
+            s->Printf(" line:%u  #define %s\n", (uint32_t)m_line, m_op2.cstr);
+            break;
+
+        case DW_MACINFO_undef:
+            s->Printf(" line:%u  #undef %s\n", (uint32_t)m_line, m_op2.cstr);
+            break;
+
+        default:
+            s->Printf(" line:%u  str: '%s'\n", (uint32_t)m_line, m_op2.cstr);
+            break;
+
+        case DW_MACINFO_start_file:
+            s->Printf(" line:%u  file index: '%u'\n", (uint32_t)m_line, (uint32_t)m_op2.file_idx);
+            break;
+
+        case DW_MACINFO_end_file:
+            break;
+        }
+    }
+    else
+    {
+        s->PutCString(" END\n");
+    }
+}
+
+
+bool
+DWARFDebugMacinfoEntry::Extract(const DataExtractor& mac_info_data, lldb::offset_t* offset_ptr)
+{
+    if (mac_info_data.ValidOffset(*offset_ptr))
+    {
+        m_type_code = mac_info_data.GetU8(offset_ptr);
+
+        switch (m_type_code)
+        {
+
+        case DW_MACINFO_define:
+        case DW_MACINFO_undef:
+            // 2 operands:
+            // Arg 1: operand encodes the line number of the source line on which
+            //      the relevant defining or undefining pre-processor directives
+            //      appeared.
+            m_line  = mac_info_data.GetULEB128(offset_ptr);
+            // Arg 2: define string
+            m_op2.cstr  = mac_info_data.GetCStr(offset_ptr);
+            break;
+
+        case DW_MACINFO_start_file:
+            // 2 operands:
+            // Op 1: line number of the source line on which the inclusion
+            //      pre-processor directive occurred.
+            m_line  = mac_info_data.GetULEB128(offset_ptr);
+            // Op 2: a source file name index to a file number in the statement
+            //      information table for the relevant compilation unit.
+            m_op2.file_idx  = mac_info_data.GetULEB128(offset_ptr);
+            break;
+
+        case 0: // End of list
+        case DW_MACINFO_end_file:
+            // No operands
+            m_line = DW_INVALID_OFFSET;
+            m_op2.cstr = NULL;
+            break;
+        default:
+            // Vendor specific entries always have a ULEB128 and a string
+            m_line      = mac_info_data.GetULEB128(offset_ptr);
+            m_op2.cstr  = mac_info_data.GetCStr(offset_ptr);
+            break;
+        }
+        return true;
+    }
+    else
+        m_type_code = 0;
+
+    return false;
+}
+