Version 3.8.6

tools/ll_prof.py

 #!/usr/bin/env python
 #
-# Copyright 2010 the V8 project authors. All rights reserved.
+# Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
 #       with the distribution.
@@ skipping 652 matching lines @@
               for (field, format, bit) in PERF_SAMPLE_EVENT_BODY_FIELDS
               if (bit & sample_type) != 0]
     return Descriptor(fields)
 
 
 OBJDUMP_SECTION_HEADER_RE = re.compile(
   r"^\s*\d+\s(\.\S+)\s+[a-f0-9]")
 OBJDUMP_SYMBOL_LINE_RE = re.compile(
   r"^([a-f0-9]+)\s(.{7})\s(\S+)\s+([a-f0-9]+)\s+(?:\.hidden\s+)?(.*)$")
 OBJDUMP_DYNAMIC_SYMBOLS_START_RE = re.compile(
-   r"^DYNAMIC SYMBOL TABLE")
+  r"^DYNAMIC SYMBOL TABLE")
+OBJDUMP_SKIP_RE = re.compile(
+  r"^.*ld\.so\.cache$")
 KERNEL_ALLSYMS_FILE = "/proc/kallsyms"
 PERF_KERNEL_ALLSYMS_RE = re.compile(
   r".*kallsyms.*")
 KERNEL_ALLSYMS_LINE_RE = re.compile(
   r"^([a-f0-9]+)\s(?:t|T)\s(\S+)$")
 
 
 class LibraryRepo(object):
   def __init__(self):
     self.infos = []
     self.names = set()
     self.ticks = {}
 
   def Load(self, mmap_info, code_map, options):
     # Skip kernel mmaps when requested using the fact that their tid
     # is 0.
     if mmap_info.tid == 0 and not options.kernel:
       return True
+    if OBJDUMP_SKIP_RE.match(mmap_info.filename):
+      return True
     if PERF_KERNEL_ALLSYMS_RE.match(mmap_info.filename):
       return self._LoadKernelSymbols(code_map)
     self.infos.append(mmap_info)
     mmap_info.ticks = 0
     mmap_info.unique_name = self._UniqueMmapName(mmap_info)
     if not os.path.exists(mmap_info.filename):
       return True
     # Request section headers (-h), symbols (-t), and dynamic symbols
     # (-T) from objdump.
     # Unfortunately, section headers span two lines, so we have to
@@ skipping 233 matching lines @@
       print "%10d total ticks" % ticks
       print "%10d ticks not in symbols" % missed_ticks
       print "%10d unaccounted ticks" % really_missed_ticks
       print "%10d total symbols" % len([c for c in code_map.AllCode()])
       print "%10d used symbols" % len([c for c in code_map.UsedCode()])
       print "%9.2fs library processing time" % mmap_time
       print "%9.2fs tick processing time" % sample_time
 
   log_reader.Dispose()
   trace_reader.Dispose()