1 files changed, 44 insertions, 0 deletions

diff --git a/sys/i386/include/stack.h b/sys/i386/include/stack.h
new file mode 100644
index 000000000000..78caae0048eb
--- /dev/null
+++ b/sys/i386/include/stack.h
@@ -0,0 +1,44 @@
+/*-
+ * Mach Operating System
+ * Copyright (c) 1991,1990 Carnegie Mellon University
+ * All Rights Reserved.
+ *
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE_STACK_H_
+#define	_MACHINE_STACK_H_
+
+/*
+ * Stack trace.
+ */
+#define INKERNEL(va)	(((vm_offset_t)(va)) >= USRSTACK && \
+	    ((vm_offset_t)(va)) < VM_MAX_KERNEL_ADDRESS)
+
+struct i386_frame {
+	struct i386_frame	*f_frame;
+	int			 f_retaddr;
+	int			 f_arg0;
+};
+
+#endif /* !_MACHINE_STACK_H_ */