#include <sysdep.h>#include <tls.h>---- Abuse tls.h macros to derive offsets relative to the thread register.-- # define __builtin_thread_pointer()  ((void *) 0)-- # define thread_offsetof(mem)     ((void *) &THREAD_SELF->mem - (void *) 0)-- Ho hum, this doesn't work in gcc4, so Know Things about THREAD_SELF#define thread_offsetof(mem)	(long)(offsetof(struct pthread, mem) - sizeof(struct pthread))MULTIPLE_THREADS_OFFSET		thread_offsetof (header.multiple_threads)PID_OFFSET			thread_offsetof (pid)TID_OFFSET			thread_offsetof (tid)