9c3fd59b00
We know we can safely statically link `libm`, since it doesn't have any dependencies on the OS or the layout of a data type that has changed between releases (like `pthread_t`). We can safely statically link `libc_syscalls` because the user can check for and handle `ENOSYS`. Update `ndk_missing_symbols.py` to account for symbols that are in the compatibility library. Improve `symbols.py` to be able to pull symbols from a static library. Change-Id: Ifb0ede1e8b4a8f0f33865d9fed72fb8b4d443fbc
90 lines
2.6 KiB
Python
90 lines
2.6 KiB
Python
#
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# Copyright (C) 2015 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the 'License');
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an 'AS IS' BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import glob
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import os
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import re
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import subprocess
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def GetFromTxt(txt_file):
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symbols = set()
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f = open(txt_file, 'r')
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for line in f.read().splitlines():
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symbols.add(line)
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f.close()
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return symbols
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def GetFromElf(elf_file, sym_type='--dyn-syms'):
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# pylint: disable=line-too-long
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# Example readelf output:
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# 264: 0001623c 4 FUNC GLOBAL DEFAULT 8 cabsf
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# 266: 00016244 4 FUNC GLOBAL DEFAULT 8 dremf
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# 267: 00019018 4 OBJECT GLOBAL DEFAULT 11 __fe_dfl_env
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# 268: 00000000 0 FUNC GLOBAL DEFAULT UND __aeabi_dcmplt
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r = re.compile(
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r' +\d+: [0-9a-f]+ +\d+ (I?FUNC|OBJECT) +\S+ +\S+ +\d+ (\S+)')
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symbols = set()
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output = subprocess.check_output(['readelf', sym_type, '-W', elf_file])
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for line in output.split('\n'):
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if ' HIDDEN ' in line or ' UND ' in line:
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continue
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m = r.match(line)
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if m:
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symbol = m.group(2)
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symbol = re.sub('@.*', '', symbol)
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symbols.add(symbol)
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return symbols
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def GetFromAndroidStaticLib(files):
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out_dir = os.environ['ANDROID_PRODUCT_OUT']
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lib_dir = os.path.join(out_dir, 'obj')
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results = set()
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for f in files:
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static_lib_dir = os.path.join(
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lib_dir,
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'STATIC_LIBRARIES',
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'{}_intermediates'.format(os.path.splitext(f)[0]))
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results |= GetFromElf(
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os.path.join(static_lib_dir, f),
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sym_type='--syms')
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return results
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def GetFromAndroidSo(files):
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out_dir = os.environ['ANDROID_PRODUCT_OUT']
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lib_dir = os.path.join(out_dir, 'system/lib64')
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if not os.path.isdir(lib_dir):
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lib_dir = os.path.join(out_dir, 'system/lib')
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results = set()
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for f in files:
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results |= GetFromElf(os.path.join(lib_dir, f))
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return results
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def GetFromSystemSo(files):
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lib_dir = '/lib/x86_64-linux-gnu'
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results = set()
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for f in files:
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results |= GetFromElf(glob.glob(os.path.join(lib_dir, f))[-1])
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return results
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