1#!/usr/bin/env python3 2 3import sys, os, shutil, subprocess, glob, re 4 5builddir = os.getenv ('builddir', os.path.dirname (__file__)) 6libs = os.getenv ('libs', '.libs') 7 8objdump = shutil.which ('objdump') 9if not objdump: 10 print ('check-static-inits.py: \'ldd\' not found; skipping test') 11 sys.exit (77) 12 13if sys.version_info < (3, 5): 14 print ('check-static-inits.py: needs python 3.5 for recursive support in glob') 15 sys.exit (77) 16 17OBJS = glob.glob (os.path.join (builddir, libs, '**', '*.o'), recursive=True) 18if not OBJS: 19 print ('check-static-inits.py: object files not found; skipping test') 20 sys.exit (77) 21 22stat = 0 23 24for obj in OBJS: 25 result = subprocess.check_output ([objdump, '-t', obj]).decode ('utf-8') 26 27 # Checking that no object file has static initializers 28 for l in re.findall (r'^.*\.[cd]tors.*$', result, re.MULTILINE): 29 if not re.match (r'.*\b0+\b', l): 30 print ('Ouch, %s has static initializers/finalizers' % obj) 31 stat = 1 32 33 # Checking that no object file has lazy static C++ constructors/destructors or other such stuff 34 if ('__cxa_' in result) and ('__ubsan_handle' not in result): 35 print ('Ouch, %s has lazy static C++ constructors/destructors or other such stuff' % obj) 36 stat = 1 37 38sys.exit (stat) 39