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#!/usr/bin/env vpython
# Copyright 2018 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.
"""Generate linker version scripts for Chrome on Android shared libraries."""
import argparse
import os
from util import build_utils
_SCRIPT_HEADER = """\
# AUTO-GENERATED FILE. DO NOT MODIFY.
#
# See: %s
{
global:
""" % os.path.relpath(__file__, build_utils.DIR_SOURCE_ROOT)
_SCRIPT_FOOTER = """\
local:
*;
};
"""
def main():
parser = argparse.ArgumentParser()
parser.add_argument(
'--output',
required=True,
help='Path to output linker version script file.')
parser.add_argument(
'--export-java-symbols',
action='store_true',
help='Export Java_* JNI methods')
parser.add_argument(
'--export-symbol-whitelist-file',
help='Path to input file containing whitelist of extra '
'symbols to export. One symbol per line.')
options = parser.parse_args()
# JNI_OnLoad is always exported.
# CrashpadHandlerMain() is the entry point to the Crashpad handler, required
# for libcrashpad_handler_trampoline.so.
symbol_list = ['CrashpadHandlerMain', 'JNI_OnLoad']
if options.export_java_symbols:
symbol_list.append('Java_*')
if options.export_symbol_whitelist_file:
with open(options.export_symbol_whitelist_file, 'rt') as f:
for line in f:
line = line.strip()
if not line or line[0] == '#':
continue
symbol_list.append(line)
script_content = [_SCRIPT_HEADER]
for symbol in symbol_list:
script_content.append(' %s;\n' % symbol)
script_content.append(_SCRIPT_FOOTER)
script = ''.join(script_content)
with build_utils.AtomicOutput(options.output) as f:
f.write(script)
if __name__ == '__main__':
main()
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