X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fx86-bsd-os.c;h=d071666d1077a3fda2e9fee0e1247c8c1d0c5ab4;hb=711389a80032e3a21719f8a5bac7984deec2ae43;hp=c44c7db4af7eb75538f1558cb1ea2029146bf7ef;hpb=26e8f33d8639e4de75e59e3aa30bbd7478d51a69;p=sbcl.git

diff --git a/src/runtime/x86-bsd-os.c b/src/runtime/x86-bsd-os.c
index c44c7db..d071666 100644
--- a/src/runtime/x86-bsd-os.c
+++ b/src/runtime/x86-bsd-os.c
@@ -19,6 +19,12 @@
 #include "machine/npx.h"
 #endif
 
+#if defined(LISP_FEATURE_OPENBSD)
+#include <machine/frame.h>
+#include <machine/npx.h>
+#include <stddef.h>
+#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
@@ -237,3 +243,19 @@ os_restore_fp_control(os_context_t *context)
 #endif
 }
 #endif
+
+#if defined(LISP_FEATURE_OPENBSD)
+void
+os_restore_fp_control(os_context_t *context)
+{
+    struct sigframe *frame;
+    union savefpu *fpu;
+
+    frame = (struct sigframe *)((char*)context - offsetof(struct sigframe, sf_sc));
+    fpu = frame->sf_fpstate;
+    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