Move user exception support into userprog.

[pintos-anon] / src / userprog / gdt.h

diff --git a/src/userprog/gdt.h b/src/userprog/gdt.h
new file mode 100644 (file)
index 0000000..ae89681
--- /dev/null
+++ b/src/userprog/gdt.h
@@ -0,0 +1,15 @@
+#ifndef HEADER_GDT_H
+#define HEADER_GDT_H 1
+
+#include "loader.h"
+
+/* Segment selectors.
+   More selectors are defined by the loader in loader.h. */
+#define SEL_UCSEG       0x1B    /* User code selector. */
+#define SEL_UDSEG       0x23    /* User data selector. */
+#define SEL_TSS         0x28    /* Task-state segment. */
+#define SEL_CNT         6       /* Number of segments. */
+
+void gdt_init (void);
+
+#endif /* gdt.h */