diff -up Python-3.2rc1/Python/ceval.c.s390-tsc Python-3.2rc1/Python/ceval.c

--- Python-3.2rc1/Python/ceval.c.s390-tsc	2011-02-04 05:11:27.585224435 -0500

+++ Python-3.2rc1/Python/ceval.c	2011-02-04 05:12:38.065223933 -0500

@@ -74,6 +74,13 @@ ppc_getcounter(uint64 *v)

                          "=a" (((int*)&(val))[0]), "=d" (((int*)&(val))[1]));

+#elif defined(__s390__)

+

+/* covers both s390 and s390x */

+

+#define READ_TIMESTAMP(val) \

+    __asm__ __volatile__("stck %0" : "=Q" (val) : : "cc")

+

 #else

 #error "Don't know how to implement timestamp counter for this architecture"