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#
# Copyright (C) 2015 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the 'License');
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an 'AS IS' BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import glob
import os
import re
import subprocess
def GetFromTxt(txt_file):
symbols = set()
f = open(txt_file, 'r')
for line in f.read().splitlines():
symbols.add(line)
f.close()
return symbols
def GetFromElf(elf_file, sym_type='--dyn-syms'):
# pylint: disable=line-too-long
# Example readelf output:
# 264: 0001623c 4 FUNC GLOBAL DEFAULT 8 cabsf
# 266: 00016244 4 FUNC GLOBAL DEFAULT 8 dremf
# 267: 00019018 4 OBJECT GLOBAL DEFAULT 11 __fe_dfl_env
# 268: 00000000 0 FUNC GLOBAL DEFAULT UND __aeabi_dcmplt
r = re.compile(
r' +\d+: [0-9a-f]+ +\d+ (I?FUNC|OBJECT) +\S+ +\S+ +\d+ (\S+)')
symbols = set()
output = subprocess.check_output(['readelf', sym_type, '-W', elf_file])
for line in output.split('\n'):
if ' HIDDEN ' in line or ' UND ' in line:
continue
m = r.match(line)
if m:
symbol = m.group(2)
symbol = re.sub('@.*', '', symbol)
symbols.add(symbol)
return symbols
def GetFromAndroidStaticLib(files):
out_dir = os.environ['ANDROID_PRODUCT_OUT']
lib_dir = os.path.join(out_dir, 'obj')
results = set()
for f in files:
static_lib_dir = os.path.join(
lib_dir,
'STATIC_LIBRARIES',
'{}_intermediates'.format(os.path.splitext(f)[0]))
results |= GetFromElf(
os.path.join(static_lib_dir, f),
sym_type='--syms')
return results
def GetFromAndroidSo(files):
out_dir = os.environ['ANDROID_PRODUCT_OUT']
lib_dir = os.path.join(out_dir, 'system/lib64')
if not os.path.isdir(lib_dir):
lib_dir = os.path.join(out_dir, 'system/lib')
results = set()
for f in files:
results |= GetFromElf(os.path.join(lib_dir, f))
return results
def GetFromSystemSo(files):
lib_dir = '/lib/x86_64-linux-gnu'
results = set()
for f in files:
results |= GetFromElf(glob.glob(os.path.join(lib_dir, f))[-1])
return results
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