Import FreeBSD/arm kernel bits.

It only supports sa1110 (on simics) right now, but xscale support should come
soon.
Some of the initial work has been provided by :
Stephane Potvin <sepotvin at videotron.ca>
Most of this comes from NetBSD.

1 files changed, 190 insertions, 0 deletions

diff --git a/sys/arm/include/frame.h b/sys/arm/include/frame.h
new file mode 100644
index 0000000..6250bf5
--- /dev/null
+++ b/sys/arm/include/frame.h
@@ -0,0 +1,190 @@
+/*	$NetBSD: frame.h,v 1.5 2002/10/19 00:10:54 bjh21 Exp $	*/
+
+/*
+ * Copyright (c) 1994-1997 Mark Brinicombe.
+ * Copyright (c) 1994 Brini.
+ * All rights reserved.
+ *
+ * This code is derived from software written for Brini by Mark Brinicombe
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Brini.
+ * 4. The name of the company nor the name of the author may be used to
+ *    endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * RiscBSD kernel project
+ *
+ * frame.h
+ *
+ * Stack frames structures
+ *
+ * Created      : 30/09/94
+ *
+ * $FreeBSD$
+ *
+ */
+
+#ifndef _MACHINE_FRAME_H_
+#define _MACHINE_FRAME_H_
+
+#ifndef _LOCORE
+
+#include <sys/signal.h>
+#include <sys/ucontext.h>
+
+
+/*
+ * Trap frame.  Pushed onto the kernel stack on a trap (synchronous exception).
+ */
+
+typedef struct trapframe {
+	register_t tf_spsr; /* Zero on arm26 */
+	register_t tf_r0;
+ 	register_t tf_r1;
+	register_t tf_r2;
+	register_t tf_r3;
+	register_t tf_r4;
+	register_t tf_r5;
+	register_t tf_r6;
+	register_t tf_r7;
+	register_t tf_r8;
+	register_t tf_r9;
+	register_t tf_r10;
+	register_t tf_r11;
+	register_t tf_r12;
+	register_t tf_usr_sp;
+	register_t tf_usr_lr;
+	register_t tf_svc_sp; /* Not used on arm26 */
+	register_t tf_svc_lr; /* Not used on arm26 */
+        register_t tf_pc;
+} trapframe_t;
+
+/* Register numbers */
+#define tf_r13 tf_usr_sp
+#define tf_r14 tf_usr_lr
+#define tf_r15 tf_pc
+/*
+ *  * Scheduler activations upcall frame.  Pushed onto user stack before
+ *   * calling an SA upcall.
+ *    */
+
+struct saframe {
+#if 0 /* in registers on entry to upcall */
+	int             sa_type;
+	struct sa_t **  sa_sas;
+	int             sa_events;
+	int             sa_interrupted;
+#endif
+	void *          sa_arg;
+};
+
+/*
+ *  * Signal frame.  Pushed onto user stack before calling sigcode.
+ *   */
+
+/* the pointers are use in the trampoline code to locate the ucontext */
+struct sigframe {
+       	siginfo_t       sf_si;          /* actual saved siginfo */
+	ucontext_t      sf_uc;          /* actual saved ucontext */
+};
+
+/*
+ * System stack frames.
+ */
+
+
+typedef struct irqframe {
+	unsigned int if_spsr;
+	unsigned int if_r0;
+	unsigned int if_r1;
+	unsigned int if_r2;
+	unsigned int if_r3;
+	unsigned int if_r4;
+	unsigned int if_r5;
+	unsigned int if_r6;
+	unsigned int if_r7;
+	unsigned int if_r8;
+	unsigned int if_r9;
+	unsigned int if_r10;
+	unsigned int if_r11;
+	unsigned int if_r12;
+	unsigned int if_usr_sp;
+	unsigned int if_usr_lr;
+	unsigned int if_svc_sp;
+	unsigned int if_svc_lr;
+	unsigned int if_pc;
+} irqframe_t;
+
+typedef struct clockframe {
+	unsigned int if_spsr;
+	unsigned int if_r0;
+	unsigned int if_r1;
+	unsigned int if_r2;
+	unsigned int if_r3;
+	unsigned int if_r4;
+	unsigned int if_r5;
+	unsigned int if_r6;
+	unsigned int if_r7;
+	unsigned int if_r8;
+	unsigned int if_r9;
+	unsigned int if_r10;
+	unsigned int if_r11;
+	unsigned int if_r12;
+	unsigned int if_usr_sp;
+	unsigned int if_usr_lr;
+	unsigned int if_svc_sp;
+	unsigned int if_svc_lr;
+	unsigned int if_pc;
+} clockframe_t;
+
+int kdb_trap(int, struct trapframe *);
+
+/*
+ * Switch frame
+ */
+
+struct switchframe {
+	u_int	sf_r4;
+	u_int	sf_r5;
+	u_int	sf_r6;
+	u_int	sf_r7;
+	u_int	sf_pc;
+};
+ 
+/*
+ * Stack frame. Used during stack traces (db_trace.c)
+ */
+struct frame {
+	u_int	fr_fp;
+	u_int	fr_sp;
+	u_int	fr_lr;
+	u_int	fr_pc;
+};
+
+#endif /* !_LOCORE */
+
+#endif /* _MACHINE_FRAME_H_ */
+  
+/* End of frame.h */