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# Copyright 2016 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import re
import subprocess
import sys
# This script executes libool and filters out logspam lines like:
# '/path/to/libtool: file: foo.o has no symbols'
BLACKLIST_PATTERNS = map(re.compile, [
r'^.*libtool: (?:for architecture: \S* )?file: .* has no symbols$',
r'^.*libtool: warning for library: .* the table of contents is empty '
r'\(no object file members in the library define global symbols\)$',
r'^.*libtool: warning same member name \(\S*\) in output file used for '
r'input files: \S* and: \S* \(due to use of basename, truncation, '
r'blank padding or duplicate input files\)$',
])
def IsBlacklistedLine(line):
"""Returns whether the line should be filtered out."""
for pattern in BLACKLIST_PATTERNS:
if pattern.match(line):
return True
return False
def Main(cmd_list):
env = os.environ.copy()
# Ref:
# http://www.opensource.apple.com/source/cctools/cctools-809/misc/libtool.c
# The problem with this flag is that it resets the file mtime on the file to
# epoch=0, e.g. 1970-1-1 or 1969-12-31 depending on timezone.
env['ZERO_AR_DATE'] = '1'
libtoolout = subprocess.Popen(cmd_list, stderr=subprocess.PIPE, env=env)
_, err = libtoolout.communicate()
for line in err.splitlines():
if not IsBlacklistedLine(line):
print >>sys.stderr, line
# Unconditionally touch the output .a file on the command line if present
# and the command succeeded. A bit hacky.
if not libtoolout.returncode:
for i in range(len(cmd_list) - 1):
if cmd_list[i] == '-o' and cmd_list[i+1].endswith('.a'):
os.utime(cmd_list[i+1], None)
break
return libtoolout.returncode
if __name__ == '__main__':
sys.exit(Main(sys.argv[1:]))
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