| # 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' |
| |
| def Main(cmd_list): |
| libtool_re = re.compile(r'^.*libtool: (?:for architecture: \S* )?' |
| r'file: .* has no symbols$') |
| libtool_re5 = re.compile( |
| r'^.*libtool: warning for library: ' + |
| r'.* the table of contents is empty ' + |
| r'\(no object file members in the library define global symbols\)$') |
| 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 libtool_re.match(line) and not libtool_re5.match(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:])) |