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-rw-r--r--nptl/sysdeps/powerpc/tcb-offsets.sym4
1 files changed, 1 insertions, 3 deletions
diff --git a/nptl/sysdeps/powerpc/tcb-offsets.sym b/nptl/sysdeps/powerpc/tcb-offsets.sym
index 4a8671e802..a9701fb5b7 100644
--- a/nptl/sysdeps/powerpc/tcb-offsets.sym
+++ b/nptl/sysdeps/powerpc/tcb-offsets.sym
@@ -6,12 +6,10 @@
 -- Abuse tls.h macros to derive offsets relative to the thread register.
 # undef __thread_register
 # define __thread_register	((void *) 0)
-# define thread_offsetof(mem)	((ptrdiff_t) THREAD_SELF + offsetof (struct pthread, mem))
-
+# define thread_offsetof(mem)	((void *) &THREAD_SELF->mem - (void *) 0)
 
 #if TLS_MULTIPLE_THREADS_IN_TCB
 MULTIPLE_THREADS_OFFSET		thread_offsetof (header.multiple_threads)
 #endif
 PID				thread_offsetof (pid)
 TID				thread_offsetof (tid)
-POINTER_GUARD			(offsetof (tcbhead_t, pointer_guard) - TLS_TCB_OFFSET - sizeof (tcbhead_t))