This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will

not work on any real hardware (or fully work on any simulator). Much more
needs to happen before this is actually functional but its nice to see
the FreeBSD copyright message appear in the ia64 simulator.

1 files changed, 91 insertions, 0 deletions

diff --git a/sys/ia64/include/db_machdep.h b/sys/ia64/include/db_machdep.h
new file mode 100644
index 0000000..1517a54
--- /dev/null
+++ b/sys/ia64/include/db_machdep.h
@@ -0,0 +1,91 @@
+/* $FreeBSD$ */
+/* $NetBSD: db_machdep.h,v 1.6 1997/09/06 02:02:25 thorpej Exp $ */
+
+/*
+ * Copyright (c) 1995 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ *
+ * 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 "AS IS"
+ * 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.
+ */
+
+#ifndef	_ALPHA_DB_MACHDEP_H_
+#define	_ALPHA_DB_MACHDEP_H_
+
+/*
+ * Machine-dependent defines for new kernel debugger.
+ */
+
+#include <sys/param.h>
+#include <vm/vm.h>
+#include <machine/frame.h>
+
+#define DB_NO_AOUT
+
+typedef	vm_offset_t	db_addr_t;	/* address - unsigned */
+typedef	long		db_expr_t;	/* expression - signed */
+
+typedef struct trapframe db_regs_t;
+db_regs_t		ddb_regs;	/* register state */
+#define	DDB_REGS	(&ddb_regs)
+
+#define	PC_REGS(regs)	((db_addr_t)(regs)->tf_regs[FRAME_PC])
+
+#define	BKPT_INST	0x00000080	/* breakpoint instruction */
+#define	BKPT_SIZE	(4)		/* size of breakpoint inst */
+#define	BKPT_SET(inst)	(BKPT_INST)
+
+#define	FIXUP_PC_AFTER_BREAK \
+	(ddb_regs.tf_regs[FRAME_PC] -= BKPT_SIZE);
+
+#define	IS_BREAKPOINT_TRAP(type, code)	((type) == ALPHA_KENTRY_IF && \
+					 (code) == ALPHA_IF_CODE_BPT)
+#define	IS_WATCHPOINT_TRAP(type, code)	0
+
+/*
+ * Functions needed for software single-stepping.
+ */
+
+/* No delay slots on Alpha. */
+#define	next_instr_address(v, b) ((db_addr_t) ((b) ? (v) : ((v) + 4)))
+
+u_long	db_register_value __P((db_regs_t *, int));
+int	kdb_trap __P((unsigned long, unsigned long, unsigned long,
+	    unsigned long, struct trapframe *));
+
+/*
+ * Pretty arbitrary
+ */
+#define	DB_SMALL_VALUE_MAX	0x7fffffff
+#define	DB_SMALL_VALUE_MIN	(-0x400001)
+
+/*
+ * We define some of our own commands.
+ */
+#define	DB_MACHINE_COMMANDS
+
+/*
+ * We use Elf64 symbols in DDB.
+ */
+#define	DB_ELFSIZE	64
+
+#endif	/* _ALPHA_DB_MACHDEP_H_ */