104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
/* $NetBSD: db_machdep.h,v 1.2 2016/01/11 07:46:15 skrll Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2014 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Matt Thomas of 3am Software Foundry.
|
|
*
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``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 FOUNDATION 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.
|
|
*/
|
|
|
|
#ifndef _AARCH64_DB_MACHDEP_H_
|
|
#define _AARCH64_DB_MACHDEP_H_
|
|
|
|
#ifdef __aarch64__
|
|
|
|
#include <aarch64/frame.h>
|
|
|
|
typedef long long int db_expr_t;
|
|
#define DDB_EXPR_FMT "llx"
|
|
typedef uintptr_t db_addr_t;
|
|
#define DDB_ADDR_FMT PRIxPTR
|
|
|
|
#define BKPT_ADDR(addr) (addr)
|
|
#define BKPT_SIZE 4
|
|
#define BKPT_INSN 0xd4200000
|
|
#define BKPT_SET(insn, addr) (BKPT_INSN)
|
|
|
|
typedef struct trapframe db_regs_t;
|
|
extern db_regs_t ddb_regs;
|
|
#define DDB_REGS (&ddb_regs)
|
|
#define PC_REGS(tf) ((tf)->tf_pc)
|
|
|
|
#define DB_TRAP_UNKNOWN 0
|
|
#define DB_TRAP_BREAKPOINT 1
|
|
#define DB_TRAP_BKPT_INSN 2
|
|
#define DB_TRAP_WATCHPOINT 3
|
|
|
|
#define IS_BREAKPOINT_TRAP(type, code) \
|
|
((type) == DB_TRAP_BREAKPOINT || (type) == DB_TRAP_BKPT_INSN)
|
|
#define IS_WATCHPOINT_TRAP(type, code) \
|
|
((type) == DB_TRAP_WATCHPOINT)
|
|
|
|
static inline bool
|
|
inst_call(db_expr_t insn)
|
|
{
|
|
return (insn & 0xfc000000) == 0x94000000 /* bl */
|
|
|| (insn & 0xfffffcef) == 0xd63f0000; /* blr */
|
|
}
|
|
|
|
static inline bool
|
|
inst_load(db_expr_t insn)
|
|
{
|
|
return (insn & 0x0b000000) == 0x08000000 /* ldr pc-rel */
|
|
|| (insn & 0x0b400000) == 0x08400000;
|
|
}
|
|
|
|
static inline bool
|
|
inst_return(db_expr_t insn)
|
|
{
|
|
return insn == 0xd65ffeff; /* ret x30 */
|
|
}
|
|
|
|
static inline bool
|
|
inst_store(db_expr_t insn)
|
|
{
|
|
return (insn & 0x3b000000) != 0x18000000 /* !ldr pc-rel */
|
|
&& (insn & 0x0b400000) == 0x08000000; /* str */
|
|
}
|
|
|
|
static inline bool
|
|
inst_trap_return(db_expr_t insn)
|
|
{
|
|
return insn == 0xd69f03e0; /* eret */
|
|
}
|
|
|
|
#elif defined(__arm__)
|
|
|
|
#include <arm/db_machdep.h>
|
|
|
|
#endif
|
|
|
|
#endif /* _AARCH64_DB_MACHDEP_H_ */
|