| #!/usr/bin/env python2 |
| |
| import argparse |
| import os |
| import sys |
| import tempfile |
| from utils import shellcmd |
| |
| if __name__ == '__main__': |
| argparser = argparse.ArgumentParser() |
| argparser.add_argument('cfile', nargs='+', type=str, |
| help='C file(s) to convert') |
| argparser.add_argument('--nacl_sdk_root', nargs='?', type=str, |
| help='Path to NACL_SDK_ROOT') |
| argparser.add_argument('--dir', nargs='?', type=str, default='.', |
| help='Output directory') |
| argparser.add_argument('--disable-verify', action='store_true') |
| args = argparser.parse_args() |
| |
| nacl_sdk_root = os.environ.get('NACL_SDK_ROOT', None) |
| if args.nacl_sdk_root: |
| nacl_sdk_root = os.path.expanduser(args.nacl_sdk_root) |
| |
| if not nacl_sdk_root or not os.path.exists(nacl_sdk_root): |
| print '''\ |
| Please set the NACL_SDK_ROOT environment variable or pass the path through |
| --nacl_sdk_root to point to a valid Native Client SDK installation.''' |
| sys.exit(1) |
| |
| includes_path = os.path.join(nacl_sdk_root, 'include') |
| toolchain_path = os.path.join(nacl_sdk_root, 'toolchain', 'linux_pnacl') |
| clang_path = os.path.join(toolchain_path, 'bin64', 'pnacl-clang') |
| opt_path = os.path.join(toolchain_path, 'host_x86_64', 'bin', 'opt') |
| |
| tempdir = tempfile.mkdtemp() |
| |
| for cname in args.cfile: |
| basename = os.path.splitext(cname)[0] |
| llname = os.path.join(tempdir, basename + '.ll') |
| pnaclname = basename + '.pnacl.ll' |
| pnaclname = os.path.join(args.dir, pnaclname) |
| |
| shellcmd(clang_path + ' -O2 -I{0} -c {1} -o {2}'.format( |
| includes_path, cname, llname)) |
| shellcmd(opt_path + |
| ' -pnacl-abi-simplify-preopt -pnacl-abi-simplify-postopt' + |
| ('' if args.disable_verify else |
| ' -verify-pnaclabi-module -verify-pnaclabi-functions') + |
| ' -pnaclabi-allow-debug-metadata -disable-simplify-libcalls' |
| ' {0} -S -o {1}'.format(llname, pnaclname)) |
