1 #!/usr/bin/env python 2 # Copyright 2013 The Chromium Authors. All rights reserved. 3 # Use of this source code is governed by a BSD-style license that can be 4 # found in the LICENSE file. 5 6 """Wrapper script for launching application within the sel_ldr. 7 """ 8 9 import optparse 10 import os 11 import subprocess 12 import sys 13 14 import create_nmf 15 import getos 16 17 SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__)) 18 NACL_SDK_ROOT = os.path.dirname(SCRIPT_DIR) 19 20 if sys.version_info < (2, 6, 0): 21 sys.stderr.write("python 2.6 or later is required run this script\n") 22 sys.exit(1) 23 24 25 class Error(Exception): 26 pass 27 28 29 def Log(msg): 30 if Log.verbose: 31 sys.stderr.write(str(msg) + '\n') 32 Log.verbose = False 33 34 35 def main(argv): 36 usage = 'Usage: %prog [options] <.nexe>' 37 description = __doc__ 38 epilog = 'Example: sel_ldr.py my_nexe.nexe' 39 parser = optparse.OptionParser(usage, description=description, epilog=epilog) 40 parser.add_option('-v', '--verbose', action='store_true', 41 help='Verbose output') 42 parser.add_option('-d', '--debug', action='store_true', 43 help='Enable debug stub') 44 parser.add_option('--debug-libs', action='store_true', 45 help='For dynamic executables, reference debug ' 46 'libraries rather then release') 47 options, args = parser.parse_args(argv) 48 if not args: 49 parser.error('No executable file specified') 50 51 nexe = args[0] 52 if options.verbose: 53 Log.verbose = True 54 55 osname = getos.GetPlatform() 56 if not os.path.exists(nexe): 57 raise Error('executable not found: %s' % nexe) 58 if not os.path.isfile(nexe): 59 raise Error('not a file: %s' % nexe) 60 61 arch, dynamic = create_nmf.ParseElfHeader(nexe) 62 if osname == 'mac' and arch == 'x86-64': 63 raise Error('Running of x86-64 executables is not supported on mac') 64 65 if arch == 'arm': 66 raise Error('Cannot run ARM executables under sel_ldr') 67 68 arch_suffix = arch.replace('-', '_') 69 70 sel_ldr = os.path.join(SCRIPT_DIR, 'sel_ldr_%s' % arch_suffix) 71 irt = os.path.join(SCRIPT_DIR, 'irt_core_%s.nexe' % arch_suffix) 72 if osname == 'win': 73 sel_ldr += '.exe' 74 Log('ROOT = %s' % NACL_SDK_ROOT) 75 Log('SEL_LDR = %s' % sel_ldr) 76 Log('IRT = %s' % irt) 77 cmd = [sel_ldr, '-a', '-B', irt, '-l', os.devnull] 78 79 if options.debug: 80 cmd.append('-g') 81 82 if osname == 'linux': 83 helper = os.path.join(SCRIPT_DIR, 'nacl_helper_bootstrap_%s' % arch_suffix) 84 Log('HELPER = %s' % helper) 85 cmd.insert(0, helper) 86 87 if dynamic: 88 if options.debug_libs: 89 libpath = os.path.join(NACL_SDK_ROOT, 'lib', 90 'glibc_%s' % arch_suffix, 'Debug') 91 else: 92 libpath = os.path.join(NACL_SDK_ROOT, 'lib', 93 'glibc_%s' % arch_suffix, 'Release') 94 toolchain = '%s_x86_glibc' % osname 95 sdk_lib_dir = os.path.join(NACL_SDK_ROOT, 'toolchain', 96 toolchain, 'x86_64-nacl') 97 if arch == 'x86-64': 98 sdk_lib_dir = os.path.join(sdk_lib_dir, 'lib') 99 else: 100 sdk_lib_dir = os.path.join(sdk_lib_dir, 'lib32') 101 ldso = os.path.join(sdk_lib_dir, 'runnable-ld.so') 102 cmd.append(ldso) 103 Log('LD.SO = %s' % ldso) 104 libpath += ':' + sdk_lib_dir 105 cmd.append('--library-path') 106 cmd.append(libpath) 107 108 109 cmd += args 110 Log(cmd) 111 rtn = subprocess.call(cmd) 112 return rtn 113 114 115 if __name__ == '__main__': 116 try: 117 sys.exit(main(sys.argv[1:])) 118 except Error as e: 119 sys.stderr.write(str(e) + '\n') 120 sys.exit(1) 121
