From 3f18aa2334ea18f69ee3bd20cd3add45714be668 Mon Sep 17 00:00:00 2001
From: Eli Bendersky <eliben@gmail.com>
Date: Tue, 27 Dec 2011 05:25:35 +0200
Subject: [PATCH] basic preparations for parsing location lists

---
 elftools/dwarf/dwarfinfo.py     |  6 +++++-
 elftools/dwarf/locationlists.py | 18 ++++++++++++++++++
 elftools/elf/elffile.py         |  5 +++--
 3 files changed, 26 insertions(+), 3 deletions(-)
 create mode 100644 elftools/dwarf/locationlists.py

diff --git a/elftools/dwarf/dwarfinfo.py b/elftools/dwarf/dwarfinfo.py
index c530b43..cc2a7b9 100644
--- a/elftools/dwarf/dwarfinfo.py
+++ b/elftools/dwarf/dwarfinfo.py
@@ -58,18 +58,22 @@ class DWARFInfo(object):
             debug_abbrev_sec,
             debug_frame_sec,
             debug_str_sec,
+            debug_loc_sec,
             debug_line_sec):
         """ config:
                 A DwarfConfig object
 
             debug_*_sec:
-                DebugSectionDescriptor for a section
+                DebugSectionDescriptor for a section. Pass None for sections
+                that don't exist. These arguments are best given with 
+                keyword syntax.
         """
         self.config = config
         self.debug_info_sec = debug_info_sec
         self.debug_abbrev_sec = debug_abbrev_sec
         self.debug_frame_sec = debug_frame_sec
         self.debug_str_sec = debug_str_sec
+        self.debug_loc_sec = debug_loc_sec
         self.debug_line_sec = debug_line_sec
 
         # This is the DWARFStructs the context uses, so it doesn't depend on 
diff --git a/elftools/dwarf/locationlists.py b/elftools/dwarf/locationlists.py
new file mode 100644
index 0000000..4ea8877
--- /dev/null
+++ b/elftools/dwarf/locationlists.py
@@ -0,0 +1,18 @@
+#-------------------------------------------------------------------------------
+# elftools: dwarf/locationlists.py
+#
+# DWARF location lists section decoding
+#
+# Eli Bendersky (eliben@gmail.com)
+# This code is in the public domain
+#-------------------------------------------------------------------------------
+from collections import namedtuple
+
+from ..common.utils import struct_parse
+
+
+class LocationLists(object):
+    def __init__(self, stream, structs):
+        pass
+        
+
diff --git a/elftools/elf/elffile.py b/elftools/elf/elffile.py
index 0f642da..57b213b 100644
--- a/elftools/elf/elffile.py
+++ b/elftools/elf/elffile.py
@@ -118,12 +118,12 @@ class ELFFile(object):
             are looked up and applied.
         """
         # Expect that has_dwarf_info was called, so at least .debug_info is 
-        # present. Check also the presence of other must-have debug sections.
+        # present. 
         # Sections that aren't found will be passed as None to DWARFInfo.
         #
         debug_sections = {}
         for secname in ('.debug_info', '.debug_abbrev', '.debug_str', 
-                        '.debug_line', '.debug_frame'):
+                        '.debug_line', '.debug_frame', '.debug_loc'):
             section = self.get_section_by_name(secname)
             if section is None:
                 debug_sections[secname] = None
@@ -141,6 +141,7 @@ class ELFFile(object):
                 debug_abbrev_sec=debug_sections['.debug_abbrev'],
                 debug_frame_sec=debug_sections['.debug_frame'],
                 debug_str_sec=debug_sections['.debug_str'],
+                debug_loc_sec=debug_sections['.debug_loc'],
                 debug_line_sec=debug_sections['.debug_line'])
 
     def get_machine_arch(self):
-- 
2.30.2