2 #include <machine/npx.h>
7 inline static void *ucontext_stack_pointer(void *uap)
9 ucontext_t *ucontext = (ucontext_t *)uap;
10 return (void *)ucontext->uc_mcontext.mc_esp;
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_387) {
17 struct save87 *x87 = (struct save87 *)(&ucontext->uc_mcontext.mc_fpstate);
19 } else if (uap->uc_mcontext.mc_fpformat == _MC_FPFMT_XMM) {
20 struct savexmm *xmm = (struct savexmm *)(&ucontext->uc_mcontext.mc_fpstate);
21 return xmm->en_sw | xmm->en_mxcsr;
26 inline static void uap_clear_fpu_status(void *uap)
28 ucontext_t *ucontext = (ucontext_t *)uap;
29 if (uap->uc_mcontext.mc_fpformat == _MC_FPFMT_387) {
30 struct save87 *x87 = (struct save87 *)(&ucontext->uc_mcontext.mc_fpstate);
32 } else if (uap->uc_mcontext.mc_fpformat == _MC_FPFMT_XMM) {
33 struct savexmm *xmm = (struct savexmm *)(&ucontext->uc_mcontext.mc_fpstate);
35 xmm->en_mxcsr &= 0xffffffc0;
39 #define UAP_PROGRAM_COUNTER(ucontext) (((ucontext_t *)(ucontext))->uc_mcontext.mc_eip)