1 files changed, 35 insertions, 0 deletions
diff --git a/lib/libc_r/arch/i386/uthread_machdep.h b/lib/libc_r/arch/i386/uthread_machdep.h
new file mode 100644
index 00000000000..2a296d3ae25
--- /dev/null
+++ b/lib/libc_r/arch/i386/uthread_machdep.h
@@ -0,0 +1,35 @@
+/*
+ * OpenBSD/i386 machine-dependent thread macros
+ *
+ * $OpenBSD: uthread_machdep.h,v 1.1 1998/08/28 01:54:58 d Exp $
+ */
+
+/* save the floating point state of a thread */
+#define _thread_machdep_save_float_state(thr) 		\
+	{						\
+	    char *fdata = (char*)((thr)->_machdep.saved_fp);	\
+	    __asm__("fsave %0"::"m" (*fdata));		\
+	}
+
+/* restore the floating point state of a thread */
+#define _thread_machdep_restore_float_state(thr) 	\
+	{						\
+	    char *fdata = (char*)((thr)->_machdep.saved_fp);	\
+	    __asm__("frstor %0"::"m" (*fdata));		\
+	}
+
+/* initialise the jmpbuf stack frame so it continues from entry */
+#define _thread_machdep_thread_create(thr, entry, pattr)	\
+	{						\
+	    /* entry */					\
+	    (thr)->saved_jmp_buf[0] = (long) entry;	\
+	    /* stack */					\
+	    (thr)->saved_jmp_buf[2] = (long) (thr)->stack \
+				+ (pattr)->stacksize_attr \
+				- sizeof(double);	\
+	}
+
+struct _machdep_struct {
+        char            saved_fp[108];
+};
+