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#!/usr/bin/python
import glob
import os
import re
import string
import subprocess
import sys
toolchain = os.environ['ANDROID_TOOLCHAIN']
arch = re.sub(r'.*/linux-x86/([^/]+)/.*', r'\1', toolchain)
sys.stderr.write('Checking symbols for arch "%s"...\n' % arch)
def GetSymbols(library, functions_or_variables):
api = '9'
if library == 'libm' and arch == 'arm':
api = '3'
path = '%s/development/ndk/platforms/android-%s/arch-%s/symbols/%s.so.%s.txt' % (os.environ['ANDROID_BUILD_TOP'], api, arch, library, functions_or_variables)
symbols = set()
for line in open(path, 'r'):
symbols.add(line.rstrip())
#sys.stdout.write('%d %s in %s for %s\n' % (len(symbols), functions_or_variables, library, arch))
return symbols
def CheckSymbols(library, functions_or_variables):
expected_symbols = GetSymbols(library, functions_or_variables)
so_file = '%s/system/lib/%s.so' % (os.environ['ANDROID_PRODUCT_OUT'], library)
# 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+ (FUNC|OBJECT) +\S+ +\S+ +\d+ (\S+)')
actual_symbols = set()
for line in subprocess.check_output(['readelf', '--dyn-syms', so_file]).split('\n'):
m = r.match(line)
if m:
symbol = string.split(m.group(2), '@')[0]
if m.group(1) == 'FUNC' and functions_or_variables == 'functions':
actual_symbols.add(symbol)
elif m.group(1) == 'OBJECT' and functions_or_variables == 'variables':
actual_symbols.add(symbol)
#else:
#print 'ignoring: ' % line
missing = expected_symbols - actual_symbols
if len(missing) > 0:
sys.stderr.write('%d missing %s in %s for %s:\n' % (len(missing), functions_or_variables, library, arch))
for miss in sorted(missing):
sys.stderr.write(' %s\n' % miss)
return len(missing) == 0
CheckSymbols("libc", "functions")
CheckSymbols("libc", "variables")
CheckSymbols("libm", "functions")
CheckSymbols("libm", "variables")
sys.exit(0)
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