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#!/usr/bin/env python
# Copyright 2013 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Dumps a list of files with static initializers. Use with release builds.
Usage:
tools/mac/dump-static-initializers.py out/Release/Chromium\ Framework.framework.dSYM/Contents/Resources/DWARF/Chromium\ Framework
Do NOT use mac_strip_release=0 or component=shared_library if you want to use
this script.
This is meant to be used on a dSYM file. If only an unstripped executable is
present, use show_mod_init_func.py.
"""
from __future__ import print_function
import optparse
import re
import subprocess
import sys
# Matches for example:
# [ 1] 000001ca 64 (N_SO ) 00 0000 0000000000000000 'test.cc'
dsymutil_file_re = re.compile("N_SO.*'([^']*)'")
# Matches for example:
# [ 2] 000001d2 66 (N_OSO ) 00 0001 000000004ed856a0 '/Volumes/MacintoshHD2/src/chrome-git/src/test.o'
dsymutil_o_file_re = re.compile("N_OSO.*'([^']*)'")
# Matches for example:
# [ 8] 00000233 24 (N_FUN ) 01 0000 0000000000001b40 '__GLOBAL__I_s'
# [185989] 00dc69ef 26 (N_STSYM ) 02 0000 00000000022e2290 '__GLOBAL__I_a'
dsymutil_re = re.compile(r"(?:N_FUN|N_STSYM).*\s[0-9a-f]*\s'__GLOBAL__I_")
def ParseDsymutil(binary):
"""Given a binary, prints source and object filenames for files with
static initializers.
"""
child = subprocess.Popen(['tools/clang/dsymutil/bin/dsymutil', '-s', binary],
stdout=subprocess.PIPE)
for line in child.stdout:
file_match = dsymutil_file_re.search(line)
if file_match:
current_filename = file_match.group(1)
else:
o_file_match = dsymutil_o_file_re.search(line)
if o_file_match:
current_o_filename = o_file_match.group(1)
else:
match = dsymutil_re.search(line)
if match:
print(current_filename)
print(current_o_filename)
print()
def main():
parser = optparse.OptionParser(usage='%prog filename')
opts, args = parser.parse_args()
if len(args) != 1:
parser.error('missing filename argument')
return 1
binary = args[0]
ParseDsymutil(binary)
return 0
if '__main__' == __name__:
sys.exit(main())
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