#include "machine/npx.h"
#endif
+#if defined(LISP_FEATURE_OPENBSD)
+#include <machine/npx.h>
+#include <stddef.h>
+#include "openbsd-sigcontext.h"
+#ifdef OS_OPENBSD_FPSTATE_IN_SIGFRAME
+# include <machine/frame.h>
+#endif
+#endif
+
/* KLUDGE: There is strong family resemblance in the signal context
* stuff in FreeBSD and OpenBSD, but in detail they're different in
* almost every line of code. It would be nice to find some way to
#endif
}
#endif
+
+#if defined(LISP_FEATURE_OPENBSD)
+void
+os_restore_fp_control(os_context_t *context)
+{
+#ifdef OS_OPENBSD_FPSTATE_IN_SIGFRAME
+ struct sigframe *frame = (struct sigframe *)((char*)context -
+ offsetof(struct sigframe, sf_sc));
+ union savefpu *fpu = frame->sf_fpstate;
+#elif defined(OS_OPENBSD_FPSTATE_IN_SIGCONTEXT)
+ union savefpu *fpu = context->sc_fpstate;
+#endif
+
+ if (openbsd_use_fxsave)
+ __asm__ __volatile__ ("fldcw %0" : : "m" (fpu->sv_xmm.sv_env.en_cw));
+ else
+ __asm__ __volatile__ ("fldcw %0" : : "m" (fpu->sv_87.sv_env.en_cw));
+}
+#endif