factor/vm/os-linux-x86.64.hpp

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#include <ucontext.h>
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namespace factor
{
inline static unsigned int uap_fpu_status(void *uap)
{
ucontext_t *ucontext = (ucontext_t *)uap;
return ucontext->uc_mcontext.fpregs->swd
| ucontext->uc_mcontext.fpregs->mxcsr;
}
inline static void uap_clear_fpu_status(void *uap)
{
ucontext_t *ucontext = (ucontext_t *)uap;
ucontext->uc_mcontext.fpregs->swd = 0;
ucontext->uc_mcontext.fpregs->mxcsr &= 0xffffffc0;
}
#define UAP_STACK_POINTER(ucontext) (((ucontext_t *)ucontext)->uc_mcontext.gregs[15])
#define UAP_PROGRAM_COUNTER(ucontext) (((ucontext_t *)ucontext)->uc_mcontext.gregs[16])
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}