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#!/usr/bin/env python
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
# This script processes NSS .def files according to the rules defined in
# a comment at the top of each one. The files are used to define the
# exports from NSS shared libraries, with -DEFFILE on Windows, a linker
# script on Linux, or with -exported_symbols_list on OS X.
#
# The NSS build system processes them using a series of sed replacements,
# but the Mozilla build system is already running a Python script to generate
# the file so it's simpler to just do the replacement in Python.
import buildconfig
def main(output, input):
if buildconfig.substs['OS_ARCH'] not in ('Linux', 'SunOS', 'Darwin', 'FreeBSD'):
print "Error: unhandled OS_ARCH %s" % buildconfig.substs['OS_ARCH']
return 1
is_linux = buildconfig.substs['OS_ARCH'] in ('Linux', 'SunOS', 'FreeBSD')
with open(input, 'rb') as f:
for line in f:
line = line.rstrip()
# Remove all lines containing ';-'
if ';-' in line:
continue
# On non-Linux, remove all lines containing ';+'
if not is_linux and ';+' in line:
continue
# Remove the string ' DATA '.
line = line.replace(' DATA ', '')
# Remove the string ';+'
line = line.replace(';+', '')
# Remove the string ';;'
line = line.replace(';;', '')
# If a ';' is present, remove everything after it,
# and on non-Linux, remove it as well.
i = line.find(';')
if i != -1:
if is_linux:
line = line[:i+1]
else:
line = line[:i]
# On non-Linux, symbols get an underscore in front.
if line and not is_linux:
output.write('_')
output.write(line)
output.write('\n')
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