#include <stddef.h>
  #include <stdbool.h>
  #include <linux/compiler.h>
  #include <linux/lockdep.h>
  #include <unistd.h>
  #include <sys/syscall.h>
  
  static __thread struct task_struct current_obj;
  
  /* lockdep wants these */
  bool debug_locks = true;
  bool debug_locks_silent;
  
  __attribute__((constructor)) static void liblockdep_init(void)
  {
  	lockdep_init();
  }
  
  __attribute__((destructor)) static void liblockdep_exit(void)
  {
  	debug_check_no_locks_held(&current_obj);
  }
  
  struct task_struct *__curr(void)
  {
  	if (current_obj.pid == 0) {
  		/* Makes lockdep output pretty */
  		prctl(PR_GET_NAME, current_obj.comm);
  		current_obj.pid = syscall(__NR_gettid);
  	}
  
  	return &current_obj;
  }