Initial source

1 files changed, 45 insertions, 0 deletions

diff --git a/i386/util/ldt.h b/i386/util/ldt.h
new file mode 100644
index 0000000..135632f
--- /dev/null
+++ b/i386/util/ldt.h
@@ -0,0 +1,45 @@
+/* 
+ * Copyright (c) 1995-1994 The University of Utah and
+ * the Computer Systems Laboratory at the University of Utah (CSL).
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify and distribute this software is hereby
+ * granted provided that (1) source code retains these copyright, permission,
+ * and disclaimer notices, and (2) redistributions including binaries
+ * reproduce the notices in supporting documentation, and (3) all advertising
+ * materials mentioning features or use of this software display the following
+ * acknowledgement: ``This product includes software developed by the
+ * Computer Systems Laboratory at the University of Utah.''
+ *
+ * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
+ * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
+ * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * CSL requests users of this software to return to csl-dist@cs.utah.edu any
+ * improvements that they make and grant CSL redistribution rights.
+ *
+ *      Author: Bryan Ford, University of Utah CSL
+ */
+#ifndef _I386_UTIL_LDT_
+#define _I386_UTIL_LDT_
+
+#include "config.h"
+
+/* If more-specific code wants a standard LDT,
+   then it should define ENABLE_KERNEL_LDT in config.h.  */
+#ifdef ENABLE_KERNEL_LDT
+
+#include <mach/machine/seg.h>
+
+/* Fill a segment descriptor in a CPU's master LDT.  */
+#define fill_ldt_descriptor(cpu, selector, base, limit, access, sizebits) \
+	fill_descriptor(&(cpu)->tables.ldt[(selector)/8],		\
+			base, limit, access, sizebits)
+
+#define fill_ldt_gate(cpu, selector, offset, dest_selector, access, word_count) \
+	fill_gate((struct i386_gate*)&(cpu)->tables.ldt[(selector)/8], \
+		  offset, dest_selector, access, word_count)
+
+#endif ENABLE_KERNEL_LDT
+
+#endif _I386_UTIL_LDT_