Breakdown memory usage by source file names in dmprof.

tools/find_runtime_symbols/static_symbols.py

Index: tools/find_runtime_symbols/static_symbols.py
diff --git a/tools/find_runtime_symbols/static_symbols.py b/tools/find_runtime_symbols/static_symbols.py
index e972ad755747e544f204660e2eed3fe7d3ec797d..cd57bacd99aeeea9ddd0812385fd32cdf2a11ea8 100644
--- a/tools/find_runtime_symbols/static_symbols.py
+++ b/tools/find_runtime_symbols/static_symbols.py
@@ -33,7 +33,7 @@ class AddressMapping(object):
 
 class RangeAddressMapping(AddressMapping):
   def __init__(self):
-    AddressMapping.__init__(self)
+    super(RangeAddressMapping, self).__init__()
     self._sorted_start_list = []
     self._is_sorted = True
 
@@ -47,6 +47,8 @@ class RangeAddressMapping(AddressMapping):
     self._symbol_map[start] = entry
 
   def find(self, address):
+    if not self._sorted_start_list:
+      return None
     if not self._is_sorted:
       self._sorted_start_list.sort()
       self._is_sorted = True
@@ -119,6 +121,7 @@ class StaticSymbolsInFile(object):
     self.my_name = my_name
     self._elf_sections = []
     self._procedures = RangeAddressMapping()
+    self._sourcefiles = RangeAddressMapping()
     self._typeinfos = AddressMapping()
 
   def _append_elf_section(self, elf_section):
@@ -127,6 +130,9 @@ class StaticSymbolsInFile(object):
   def _append_procedure(self, start, procedure):
     self._procedures.append(start, procedure)
 
+  def _append_sourcefile(self, start, sourcefile):
+    self._sourcefiles.append(start, sourcefile)
+
   def _append_typeinfo(self, start, typeinfo):
     self._typeinfos.append(start, typeinfo)
 
@@ -150,6 +156,9 @@ class StaticSymbolsInFile(object):
   def find_procedure_by_runtime_address(self, address, vma):
     return self._find_symbol_by_runtime_address(address, vma, self._procedures)
 
+  def find_sourcefile_by_runtime_address(self, address, vma):
+    return self._find_symbol_by_runtime_address(address, vma, self._sourcefiles)
+
   def find_typeinfo_by_runtime_address(self, address, vma):
     return self._find_symbol_by_runtime_address(address, vma, self._typeinfos)
 
@@ -183,6 +192,11 @@ class StaticSymbolsInFile(object):
         if line in ('Key to Flags:', 'Program Headers:'):
           break
 
+  def load_readelf_debug_decodedline_file(self, input_file):
+    for line in input_file:
+      splitted = line.rstrip().split(None, 2)
+      self._append_sourcefile(int(splitted[0], 16), splitted[1])
+
   @staticmethod
   def _parse_nm_bsd_line(line):
     if line[8] == ' ':