Add test for patching a system call instruction

tests/test_runner.h

 // Copyright (c) 2011 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.
 
 #ifndef TEST_RUNNER_H__
 #define TEST_RUNNER_H__
 
+#include <errno.h>
+#include <stdio.h>
+
 
 void intend_exit_status(int val, bool is_signal);
 void add_test_case(const char *test_name, void (*test_func)());
 
 
 #define TEST(name) \
   void name(); \
   static void __attribute__((constructor)) add_##name() { \
     add_test_case(#name, name); \
   } \
@@ skipping 65 matching lines @@
               __FILE__, __LINE__, __PRETTY_FUNCTION__, #expr,                 \
               strerror_r(exp_errno, errmsg1, sizeof(errmsg1)),                \
               strerror_r(errno, errmsg2, sizeof(errmsg2)));                   \
       _exit(1);                                                               \
     }                                                                         \
     check_res;                                                                \
   })
 
 
 #endif