Fix WebRTC API framework build.
BUG=webrtc:5737
Review URL: https://codereview.webrtc.org/1875003004
Cr-Commit-Position: refs/heads/master@{#12391}
diff --git a/webrtc/build/ios/merge_ios_libs.py b/webrtc/build/ios/merge_ios_libs.py
new file mode 100755
index 0000000..651024e
--- /dev/null
+++ b/webrtc/build/ios/merge_ios_libs.py
@@ -0,0 +1,124 @@
+#!/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())