#include namespace factor { inline static void *ucontext_stack_pointer(void *uap) { ucontext_t *ucontext = (ucontext_t *)uap; return (void *)ucontext->uc_mcontext.mc_rsp; } #define UAP_PROGRAM_COUNTER(ucontext) (((ucontext_t *)(ucontext))->uc_mcontext.mc_rip) }