commit 6e357123ed12e52fb93310594e495607335fbe84
author George Rimar <grimar@accesssoftek.com> Wed Oct 10 08:11:15 2018 +0000
committer George Rimar <grimar@accesssoftek.com> Wed Oct 10 08:11:15 2018 +0000
tree cd0a7d0dea217df8616c833898a74254bc753603
parent 26fac469d2c27f65c17ff3d0d89b6e7eef18f212

[LLDB] - Add basic support for .debug_rnglists section (DWARF5)

This adds a basic support of the .debug_rnglists section.
Only the DW_RLE_start_length and DW_RLE_end_of_list entries are supported.

Differential revision: https://reviews.llvm.org/D52981

llvm-svn: 344119

lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp

diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
index 4f9e726..59163a9 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
@@ -410,9 +410,9 @@
       m_debug_map_module_wp(), m_debug_map_symfile(NULL), m_data_debug_abbrev(),
       m_data_debug_aranges(), m_data_debug_frame(), m_data_debug_info(),
       m_data_debug_line(), m_data_debug_macro(), m_data_debug_loc(),
-      m_data_debug_ranges(), m_data_debug_str(), m_data_apple_names(),
-      m_data_apple_types(), m_data_apple_namespaces(), m_abbr(), m_info(),
-      m_line(), m_fetched_external_modules(false),
+      m_data_debug_ranges(), m_data_debug_rnglists(), m_data_debug_str(),
+      m_data_apple_names(), m_data_apple_types(), m_data_apple_namespaces(),
+      m_abbr(), m_info(), m_line(), m_fetched_external_modules(false),
       m_supports_DW_AT_APPLE_objc_complete_type(eLazyBoolCalculate), m_ranges(),
       m_unique_ast_type_map() {}
 
@@ -659,6 +659,11 @@
                               m_data_debug_ranges);
 }
 
+const DWARFDataExtractor &SymbolFileDWARF::get_debug_rnglists_data() {
+  return GetCachedSectionData(eSectionTypeDWARFDebugRngLists,
+                              m_data_debug_rnglists);
+}
+
 const DWARFDataExtractor &SymbolFileDWARF::get_debug_str_data() {
   return GetCachedSectionData(eSectionTypeDWARFDebugStr, m_data_debug_str);
 }
@@ -753,11 +758,14 @@
     static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
     Timer scoped_timer(func_cat, "%s this = %p", LLVM_PRETTY_FUNCTION,
                        static_cast<void *>(this));
-    if (get_debug_ranges_data().GetByteSize() > 0) {
+
+    if (get_debug_ranges_data().GetByteSize() > 0)
       m_ranges.reset(new DWARFDebugRanges());
-      if (m_ranges.get())
-        m_ranges->Extract(this);
-    }
+    else if (get_debug_rnglists_data().GetByteSize() > 0)
+      m_ranges.reset(new DWARFDebugRngLists());
+
+    if (m_ranges.get())
+      m_ranges->Extract(this);
   }
   return m_ranges.get();
 }