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 = os.getenv ('OBJDUMP', 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, '**', '*hb*.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 23tested = 0 24 25for obj in OBJS: 26 result = subprocess.run(objdump.split () + ['-t', obj], stdout=subprocess.PIPE, stderr=subprocess.PIPE) 27 28 if result.returncode: 29 if result.stderr.find (b'not recognized') != -1: 30 # https://github.com/harfbuzz/harfbuzz/issues/3019 31 print ('objdump %s returned "not recognized", skipping' % obj) 32 continue 33 print ('objdump %s returned error:\n%s' % (obj, result.stderr.decode ('utf-8'))) 34 stat = 2 35 36 result = result.stdout.decode ('utf-8') 37 38 # Checking that no object file has static initializers 39 for l in re.findall (r'^.*\.[cd]tors.*$', result, re.MULTILINE): 40 if not re.match (r'.*\b0+\b', l): 41 print ('Ouch, %s has static initializers/finalizers' % obj) 42 stat = 1 43 44 # Checking that no object file has lazy static C++ constructors/destructors or other such stuff 45 if ('__cxa_' in result) and ('__ubsan_handle' not in result): 46 print ('Ouch, %s has lazy static C++ constructors/destructors or other such stuff' % obj) 47 stat = 1 48 49 tested += 1 50 51sys.exit (stat if tested else 77) 52