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  • Committer: Package Import Robot
  • Author(s): Sylvestre Ledru
  • Date: 2013-05-02 13:11:51 UTC
  • Revision ID: package-import@ubuntu.com-20130502131151-q8dvteqr1ef2x7xz
Tags: upstream-1.4.1~20130504~adb56cb
Import upstream version 1.4.1~20130504~adb56cb

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third_party/demangler.py
 
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#!/usr/bin/python2
 
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'''
 
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Simple tool to run the demangler.
 
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(C) 2010 Alon Zakai, MIT licensed
 
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Usage: demangler.py FILENAME SPLITTER
 
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Make sure you define ~/.emscripten, and fill it with something like
 
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JS_ENGINE=[os.path.expanduser('~/Dev/v8/d8')]
 
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JS_ENGINE_PARAMS=['--']
 
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or
 
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JS_ENGINE=[os.path.expanduser('~/Dev/tracemonkey/js/src/js')]
 
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JS_ENGINE_PARAMS=[]
 
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'''
 
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import os, sys, subprocess, re
 
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__rootpath__ = os.path.dirname(os.path.abspath(__file__))
 
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def path_from_root(*pathelems):
 
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  return os.path.join(os.path.sep, *(__rootpath__.split(os.sep)[:-1] + list(pathelems)))
 
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sys.path += [path_from_root('')]
 
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from tools.shared import *
 
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data = open(sys.argv[1], 'r').readlines()
 
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SEEN = {}
 
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for line in data:
 
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  if len(line) < 4: continue
 
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  m = re.match('^  function (?P<func>[^(]+)\(.*', line) # generated code
 
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  if not m:
 
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    m = re.match('^ + _*\d+: (?P<func>[^ ]+) \(\d+.*', line) # profiling output
 
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  if not m: continue
 
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  func = m.groups('func')[0]
 
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  if func in SEEN: continue
 
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  SEEN[func] = True
 
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  cleaned = run_js(JS_ENGINE, path_from_root('third_party', 'gcc_demangler.js'), [func[1:]])
 
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  if cleaned is None: continue
 
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  if 'Fatal exception' in cleaned: continue
 
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  cleaned = cleaned[1:-2]
 
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  if cleaned == '(null)': continue
 
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  if ' throw ' in cleaned: continue
 
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  print func, '=', cleaned
 
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