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from __future__ import print_function
import argparse
import glob
import os.path
import shutil
import subprocess
import sys
import tempfile
try:
from shlex import quote
except:
from pipes import quote
VERBOSE = False
def path_dirname(path):
return os.path.dirname(path)
def path_basename(path):
return os.path.splitext(os.path.basename(path))[0]
def is_gnu_tool(tool):
try:
out = subprocess.check_output([tool, '-V'], stderr=subprocess.STDOUT)
try:
out = out.decode()
except:
pass
try:
out = str(out)
except:
pass
return 'GNU' in out
except:
return False
def execute_command(cmd):
if VERBOSE:
print(cmd, file=sys.stderr)
proc = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
out = proc.stdout.read().decode()
code = proc.wait()
if code != 0:
print(cmd, file=sys.stderr)
print(out, file=sys.stderr)
print("command exited with code {}".format(code))
exit(1)
parser = argparse.ArgumentParser(description='compose multiple static libs into one')
parser.add_argument('--out', dest='output', type=str, required=True,
help='output library')
parser.add_argument('--in', dest='inputs', type=str, nargs='+', required=True,
help='input libraries')
parser.add_argument('--arch', dest='arch', type=str, nargs='*',
help='binary achitecture(s)')
parser.add_argument('--tools', dest='tools', type=str, nargs='*',
help='paths to tools')
parser.add_argument('--verbose', dest='verbose', action='store_true',
help='enable verbose output')
args = parser.parse_args()
VERBOSE = args.verbose
dst_lib = os.path.abspath(args.output)
src_libs = [os.path.abspath(arg) for arg in args.inputs]
archs = args.arch or [None]
is_fat = len(archs) > 1
tools = dict()
for e in args.tools:
k, v = e.split('=', 1)
tools[k] = v
for exe in ['ar', 'objcopy', 'lipo']:
if not tools.get(exe.upper(), None):
tools[exe.upper()] = exe
have_gnu_objcopy = is_gnu_tool(tools['OBJCOPY'])
try:
temp_dir = tempfile.mkdtemp()
os.chdir(temp_dir)
# remove output lib(s)
for path in glob.glob(dst_lib+'*'):
os.remove(path)
for arch in archs:
dst_arch_lib = '{}/{}.{}.a'.format(
path_dirname(dst_lib),
path_basename(dst_lib),
arch)
for path in glob.glob(dst_arch_lib+'*'):
os.remove(path)
for src_lib in src_libs:
for arch in archs:
basename = path_basename(src_lib)
# unpack object files for given arch from input lib
if is_fat:
arch_lib = '{}.{}.a'.format(basename, arch)
execute_command(
'{lipo} -extract_family {arch} -output {arch_lib} {src_lib}'.format(
lipo=quote(tools['LIPO']),
arch=quote(arch),
arch_lib=quote(arch_lib),
src_lib=quote(src_lib)))
execute_command(
'{ar} x {arch_lib}'.format(
ar=quote(tools['AR']),
arch_lib=quote(arch_lib)))
os.remove(arch_lib)
else:
execute_command(
'{ar} x {src_lib}'.format(
ar=quote(tools['AR']),
src_lib=quote(src_lib)))
for obj in list(glob.glob('*.o')):
new_obj = '{}-{}'.format(basename, obj)
# transform object file
if have_gnu_objcopy:
execute_command(
'{objcopy} --localize-hidden --strip-unneeded {obj} {new_obj}'.format(
objcopy=quote(tools['OBJCOPY']),
obj=quote(obj),
new_obj=quote(new_obj)))
os.remove(obj)
else:
os.rename(obj, new_obj)
# add object file to resulting static lib for given arch
if is_fat:
dst_arch_lib = '{}/{}.{}.a'.format(
path_dirname(dst_lib),
path_basename(dst_lib),
arch)
# quick mode (disable checks, disable symbol index)
execute_command(
'{ar} qS {dst_arch_lib} {new_obj}'.format(
ar=quote(tools['AR']),
dst_arch_lib=quote(dst_arch_lib),
new_obj=quote(new_obj)))
else:
execute_command(
'{ar} r {dst_lib} {new_obj}'.format(
ar=quote(tools['AR']),
dst_lib=quote(dst_lib),
new_obj=quote(new_obj)))
os.remove(new_obj)
# compose per-arch static libs into one
if is_fat:
dst_arch_libs = [
'{}/{}.{}.a'.format(
path_dirname(dst_lib),
path_basename(dst_lib),
arch)
for arch in archs]
# build symbol index
for dst_arch_lib in dst_arch_libs:
execute_command(
'{ar} s {dst_arch_lib}'.format(
ar=quote(tools['AR']),
dst_arch_lib=quote(dst_arch_lib)))
execute_command(
'{lipo} -create -output {dst_lib} {dst_arch_libs}'.format(
lipo=quote(tools['LIPO']),
dst_lib=quote(dst_lib),
dst_arch_libs=' '.join(map(quote, dst_arch_libs))))
except:
if os.path.isfile(dst_lib):
os.remove(dst_lib)
raise
finally:
if os.path.isdir(temp_dir):
shutil.rmtree(temp_dir)
|
