1#include <stddef.h> 2#include <stdbool.h> 3#include <linux/compiler.h> 4#include <linux/lockdep.h> 5#include <unistd.h> 6#include <sys/syscall.h> 7 8static __thread struct task_struct current_obj; 9 10/* lockdep wants these */ 11bool debug_locks = true; 12bool debug_locks_silent; 13 14__attribute__((destructor)) static void liblockdep_exit(void) 15{ 16 debug_check_no_locks_held(); 17} 18 19struct task_struct *__curr(void) 20{ 21 if (current_obj.pid == 0) { 22 /* Makes lockdep output pretty */ 23 prctl(PR_GET_NAME, current_obj.comm); 24 current_obj.pid = syscall(__NR_gettid); 25 } 26 27 return ¤t_obj; 28} 29