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-rw-r--r--nptl/sysdeps/powerpc/tcb-offsets.sym3
1 files changed, 2 insertions, 1 deletions
diff --git a/nptl/sysdeps/powerpc/tcb-offsets.sym b/nptl/sysdeps/powerpc/tcb-offsets.sym
index a9701fb5b7..3962edbd54 100644
--- a/nptl/sysdeps/powerpc/tcb-offsets.sym
+++ b/nptl/sysdeps/powerpc/tcb-offsets.sym
@@ -6,7 +6,8 @@
 -- Abuse tls.h macros to derive offsets relative to the thread register.
 # undef __thread_register
 # define __thread_register	((void *) 0)
-# define thread_offsetof(mem)	((void *) &THREAD_SELF->mem - (void *) 0)
+# define thread_offsetof(mem)	((ptrdiff_t) THREAD_SELF + offsetof (struct pthread, mem))
+
 
 #if TLS_MULTIPLE_THREADS_IN_TCB
 MULTIPLE_THREADS_OFFSET		thread_offsetof (header.multiple_threads)