125 lines
4.1 KiB
Python
125 lines
4.1 KiB
Python
|
#!/usr/bin/python
|
||
|
|
|
||
|
|
# Copyright 2016 The WebRTC project authors. All Rights Reserved.
|
||
|
|
#
|
||
|
|
# Use of this source code is governed by a BSD-style license
|
||
|
|
# that can be found in the LICENSE file in the root of the source
|
||
|
|
# tree. An additional intellectual property rights grant can be found
|
||
|
|
# in the file PATENTS. All contributing project authors may
|
||
|
|
# be found in the AUTHORS file in the root of the source tree.
|
||
|
|
|
||
|
|
"""Script for merging generated iOS libraries."""
|
||
|
|
|
||
|
|
import sys
|
||
|
|
|
||
|
|
import argparse
|
||
|
|
import os
|
||
|
|
import re
|
||
|
|
import subprocess
|
||
|
|
|
||
|
|
# Valid arch subdir names.
|
||
|
|
VALID_ARCHS = ['arm_libs', 'arm64_libs', 'ia32_libs', 'x64_libs']
|
||
|
|
|
||
|
|
|
||
|
|
def MergeLibs(lib_base_dir):
|
||
|
|
"""Merges generated iOS libraries for different archs.
|
||
|
|
|
||
|
|
Uses libtool to generate FAT archive files for each generated library.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
lib_base_dir: directory whose subdirectories are named by architecture and
|
||
|
|
contain the built libraries for that architecture
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
Exit code of libtool.
|
||
|
|
"""
|
||
|
|
output_dir_name = 'fat_libs'
|
||
|
|
archs = [arch for arch in os.listdir(lib_base_dir)
|
||
|
|
if arch in VALID_ARCHS]
|
||
|
|
# For each arch, find (library name, libary path) for arch. We will merge
|
||
|
|
# all libraries with the same name.
|
||
|
|
libs = {}
|
||
|
|
for lib_dir in [os.path.join(lib_base_dir, arch) for arch in VALID_ARCHS]:
|
||
|
|
if not os.path.exists(lib_dir):
|
||
|
|
continue
|
||
|
|
for dirpath, _, filenames in os.walk(lib_dir):
|
||
|
|
for filename in filenames:
|
||
|
|
if not filename.endswith('.a'):
|
||
|
|
continue
|
||
|
|
entry = libs.get(filename, [])
|
||
|
|
entry.append(os.path.join(dirpath, filename))
|
||
|
|
libs[filename] = entry
|
||
|
|
orphaned_libs = {}
|
||
|
|
valid_libs = {}
|
||
|
|
for library, paths in libs.items():
|
||
|
|
if len(paths) < len(archs):
|
||
|
|
orphaned_libs[library] = paths
|
||
|
|
else:
|
||
|
|
valid_libs[library] = paths
|
||
|
|
for library, paths in orphaned_libs.items():
|
||
|
|
components = library[:-2].split('_')[:-1]
|
||
|
|
found = False
|
||
|
|
# Find directly matching parent libs by stripping suffix.
|
||
|
|
while components and not found:
|
||
|
|
parent_library = '_'.join(components) + '.a'
|
||
|
|
if parent_library in valid_libs:
|
||
|
|
valid_libs[parent_library].extend(paths)
|
||
|
|
found = True
|
||
|
|
break
|
||
|
|
components = components[:-1]
|
||
|
|
# Find next best match by finding parent libs with the same prefix.
|
||
|
|
if not found:
|
||
|
|
base_prefix = library[:-2].split('_')[0]
|
||
|
|
for valid_lib, valid_paths in valid_libs.items():
|
||
|
|
if valid_lib[:len(base_prefix)] == base_prefix:
|
||
|
|
valid_paths.extend(paths)
|
||
|
|
found = True
|
||
|
|
break
|
||
|
|
assert found
|
||
|
|
|
||
|
|
# Create output directory.
|
||
|
|
output_dir_path = os.path.join(lib_base_dir, output_dir_name)
|
||
|
|
if not os.path.exists(output_dir_path):
|
||
|
|
os.mkdir(output_dir_path)
|
||
|
|
|
||
|
|
# Use this so libtool merged binaries are always the same.
|
||
|
|
env = os.environ.copy()
|
||
|
|
env['ZERO_AR_DATE'] = '1'
|
||
|
|
|
||
|
|
# Ignore certain errors.
|
||
|
|
libtool_re = re.compile(r'^.*libtool:.*file: .* has no symbols$')
|
||
|
|
|
||
|
|
# Merge libraries using libtool.
|
||
|
|
libtool_returncode = 0
|
||
|
|
for library, paths in valid_libs.items():
|
||
|
|
cmd_list = ['libtool', '-static', '-v', '-o',
|
||
|
|
os.path.join(output_dir_path, library)] + paths
|
||
|
|
libtoolout = subprocess.Popen(cmd_list, stderr=subprocess.PIPE, env=env)
|
||
|
|
_, err = libtoolout.communicate()
|
||
|
|
for line in err.splitlines():
|
||
|
|
if not libtool_re.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.
|
||
|
|
libtool_returncode = libtoolout.returncode
|
||
|
|
if not libtool_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 libtool_returncode
|
||
|
|
|
||
|
|
|
||
|
|
def Main():
|
||
|
|
parser_description = 'Merge WebRTC libraries.'
|
||
|
|
parser = argparse.ArgumentParser(description=parser_description)
|
||
|
|
parser.add_argument('lib_base_dir',
|
||
|
|
help='Directory with built libraries. ',
|
||
|
|
type=str)
|
||
|
|
args = parser.parse_args()
|
||
|
|
lib_base_dir = args.lib_base_dir
|
||
|
|
MergeLibs(lib_base_dir)
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
sys.exit(Main())
|