On 11/21/2013 07:53 PM, Carlos O'Donell wrote: > The addition of the *context functions in glibc for 64-bit power > happened in 2003 by glibc commit 609b4783, with the mcontext_t > being expanded to include ... support for VMX state via `long vmx_reserve[NVRREG+NVRREG+1];'. Cheers, Carlos.