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- when recording the non-redirected address in guest_NRADDR, also snapshot the current R2 value, as that will be needed to run the original safely - As a consequence, the original-function information extracted by VALGRIND_GET_ORIG_FN is different on ppc64-linux (2 words) from all other platforms (1 word). So change the type of it from void* to a new type OrigFn which can be defined differently for each platform. - Change the CALL_FN_* macros for ppc64-linux to save/restore R2 values appropriately. - ppc64-linux: detect overflow/underflow of the redirect stack and bring Valgrind to a halt if this happens - Update VG_CLREQ_SZB for ppc32/64 (was out of date). git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5569