2 #include <machine/fpu.h>
7 inline static void *ucontext_stack_pointer(void *uap)
9 ucontext_t *ucontext = (ucontext_t *)uap;
10 return (void *)ucontext->uc_mcontext.mc_rsp;
13 inline static unsigned int uap_fpu_status(void *uap)
15 ucontext_t *ucontext = (ucontext_t *)uap;
16 if (uap->uc_mcontext.mc_fpformat == _MC_FPFMT_XMM) {
17 struct savexmm *xmm = (struct savexmm *)(&ucontext->uc_mcontext.mc_fpstate);
18 return xmm->en_sw | xmm->en_mxcsr;
23 inline static void uap_clear_fpu_status(void *uap)
25 ucontext_t *ucontext = (ucontext_t *)uap;
26 if (uap->uc_mcontext.mc_fpformat == _MC_FPFMT_XMM) {
27 struct savexmm *xmm = (struct savexmm *)(&ucontext->uc_mcontext.mc_fpstate);
29 xmm->en_mxcsr &= 0xffffffc0;
33 #define UAP_PROGRAM_COUNTER(ucontext) (((ucontext_t *)(ucontext))->uc_mcontext.mc_rip)