Add test for patching a system call instruction

seccomp.gyp

 # Copyright (c) 2010 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'chromium_code': 1,
     'seccomp_intermediate_dir': '<(INTERMEDIATE_DIR)/seccomp-sandbox',
   },
   'targets': [
@@ skipping 47 matching lines @@
         'x86_decode.h',
       ],
     },
     {
       'target_name': 'seccomp_tests',
       'type': 'executable',
       'sources': [
         'reference_trusted_thread.cc',
         'tests/clone_test_helper.S',
         'tests/test_runner.cc',
+        'tests/test_patching.cc',
+        'tests/test_patching_input.S',
         'tests/test_syscalls.cc',
       ],
       'include_dirs': [
          '.',
          '<(seccomp_intermediate_dir)',
       ],
       'dependencies': [
         'seccomp_sandbox',
       ],
       'libraries': [
         '-lpthread',
         '-lutil', # For openpty()
       ],
     },
     {
       'target_name': 'timestats',
       'type': 'executable',
       'sources': [
         'timestats.cc',
       ],
     },
   ],
 }