provided code

src/threads/intr-stubs.h

@@ -0,0 +1,19 @@
+#ifndef THREADS_INTR_STUBS_H
+#define THREADS_INTR_STUBS_H
+
+/* Interrupt stubs.
+
+   These are little snippets of code in intr-stubs.S, one for
+   each of the 256 possible x86 interrupts.  Each one does a
+   little bit of stack manipulation, then jumps to intr_entry().
+   See intr-stubs.S for more information.
+
+   This array points to each of the interrupt stub entry points
+   so that intr_init() can easily find them. */
+typedef void intr_stub_func (void);
+extern intr_stub_func *intr_stubs[256];
+
+/* Interrupt return path. */
+void intr_exit (void);
+
+#endif /* threads/intr-stubs.h */