some db_machdep.h

1 files changed, 94 insertions, 0 deletions

diff --git a/sys/arch/hppa/include/db_machdep.h b/sys/arch/hppa/include/db_machdep.h
new file mode 100644
index 00000000000..cb59b3a9c5b
--- /dev/null
+++ b/sys/arch/hppa/include/db_machdep.h
@@ -0,0 +1,94 @@
+/*	$OpenBSD: db_machdep.h,v 1.1 1998/12/05 17:38:34 mickey Exp $	*/
+
+/*
+ * Copyright (c) 1998 Michael Shalayeff
+ * All rights reserved.
+ *
+ * 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 Michael Shalayeff.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
+ */
+
+#ifndef	_MACHINE_DB_MACHDEP_H_
+#define	_MACHINE_DB_MACHDEP_H_
+
+/* types the generic ddb module needs */
+typedef	vm_offset_t db_addr_t;
+typedef	long db_expr_t;
+
+typedef struct trapframe db_regs_t;
+extern db_regs_t	ddb_regs;
+#define	DDB_REGS	(&ddb_regs)
+
+#define	PC_REGS(regs)	((db_addr_t)(regs)->iioq_head)
+
+/* Breakpoint related definitions */
+#define	BKPT_INST	0x00000000	/* break 0,0 */
+#define	BKPT_SIZE	sizeof(int)
+#define	BKPT_SET(inst)	BKPT_INST
+
+#define	IS_BREAKPOINT_TRAP(type, code) 1
+#define	IS_WATCHPOINT_TRAP(type, code) 0
+
+#define	FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_regs[FRAME_PC] -= sizeof(int))
+
+#define DB_VALID_BREAKPOINT(addr) db_valid_breakpoint(addr)
+
+static __inline int inst_call(u_int ins) {
+	return (ins & 0xfc00e000) == 0xe8000000 ||
+	       (ins & 0xfc00e000) == 0xe8004000 ||
+	       (ins & 0xfc000000) == 0xe4000000;
+}
+static __inline int inst_branch(u_int ins) {
+	return (ins & 0xf0000000) == 0xe0000000 ||
+	       (ins & 0xf0000000) == 0xc0000000 ||
+	       (ins & 0xf0000000) == 0xa0000000 ||
+	       (ins & 0xf0000000) == 0x80000000;
+}
+static __inline int inst_load(u_int ins) {
+	return (ins & 0xf0000000) == 0x40000000 ||
+	       (ins & 0xf4000200) == 0x24000000 ||
+	       (ins & 0xfc000200) == 0x0c000000 ||
+	       (ins & 0xfc001fc0) != 0x0c0011c0;
+}
+static __inline int inst_store(u_int ins) {
+	return (ins & 0xf0000000) == 0x60000000 ||
+	       (ins & 0xf4000200) == 0x24000200 ||
+	       (ins & 0xfc000200) == 0x0c000200;
+}
+static __inline int inst_return(u_int ins) {
+	return (ins & 0xfc00e000) == 0xe800c000 ||
+	       (ins & 0xfc000000) == 0xe0000000;
+}
+static __inline int inst_trap_return(u_int ins)	{
+	return (ins & 0xfc001fc0) == 0x00000ca0;
+}
+
+#define db_clear_single_step(r)	((r)->flags |= 0)
+#define db_set_single_step(r)	((r)->flags |= 0)
+
+int db_valid_breakpoint __P((db_addr_t));
+int kdb_trap __P((int, int, db_regs_t *));
+
+#endif /* _MACHINE_DB_MACHDEP_H_ */