<rdar://problem/13338643>

DWARF with .o files now uses 40-60% less memory!

Big fixes include:
- Change line table internal representation to contain "file addresses". Since each line table is owned by a compile unit that is owned by a module, it makes address translation into lldb_private::Address easy to do when needed.
- Removed linked address members/methods from lldb_private::Section and lldb_private::Address
- lldb_private::LineTable can now relink itself using a FileRangeMap to make it easier to re-link line tables in the future
- Added ObjectFile::ClearSymtab() so that we can get rid of the object file symbol tables after we parse them once since they are not needed and kept memory allocated for no reason
- Moved the m_sections_ap (std::auto_ptr to section list) and m_symtab_ap (std::auto_ptr to the lldb_private::Symtab) out of each of the ObjectFile subclasses and put it into lldb_private::ObjectFile.
- Changed how the debug map is parsed and stored to be able to:
    - Lazily parse the debug map for each object file
    - not require the address map for a .o file until debug information is linked for a .o file

llvm-svn: 176454

1 files changed, 1 insertions, 3 deletions

diff --git a/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.h b/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.h
index 1d0443731d9..c4a15407c4e 100644
--- a/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.h
+++ b/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.h
@@ -146,8 +146,6 @@ public:
 
 protected:
     llvm::MachO::mach_header m_header;
-    mutable std::auto_ptr<lldb_private::SectionList> m_sections_ap;
-    mutable std::auto_ptr<lldb_private::Symtab> m_symtab_ap;
     static const lldb_private::ConstString &GetSegmentNameTEXT();
     static const lldb_private::ConstString &GetSegmentNameDATA();
     static const lldb_private::ConstString &GetSegmentNameOBJC();
@@ -157,7 +155,7 @@ protected:
     llvm::MachO::dysymtab_command m_dysymtab;
     std::vector<llvm::MachO::segment_command_64> m_mach_segments;
     std::vector<llvm::MachO::section_64> m_mach_sections;
-    typedef lldb_private::RangeArray<uint32_t, uint32_t, 1> FileRangeArray;
+    typedef lldb_private::RangeVector<uint32_t, uint32_t> FileRangeArray;
     lldb_private::Address  m_entry_point_address;
     FileRangeArray m_thread_context_offsets;
     bool m_thread_context_offsets_valid;