diff options
Diffstat (limited to 'sys/arch/alpha/include/db_machdep.h')
| -rw-r--r-- | sys/arch/alpha/include/db_machdep.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/sys/arch/alpha/include/db_machdep.h b/sys/arch/alpha/include/db_machdep.h new file mode 100644 index 00000000000..986bfeb672f --- /dev/null +++ b/sys/arch/alpha/include/db_machdep.h @@ -0,0 +1,56 @@ +/* $NetBSD: db_machdep.h,v 1.1 1995/11/23 02:35:54 cgd 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> + +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_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_pc -= BKPT_SIZE; + +#endif /* _ALPHA_DB_MACHDEP_H_ */ |