mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
/*
|
|
* Mach Operating System
|
|
* Copyright (c) 1992 Carnegie Mellon University
|
|
* All Rights Reserved.
|
|
*
|
|
* 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 Mellon
|
|
* the rights to redistribute these changes.
|
|
*
|
|
* $OpenBSD: db_machdep.h,v 1.2 1997/03/21 00:48:48 niklas Exp $
|
|
* $NetBSD: db_machdep.h,v 1.4.22.1 2000/08/05 11:10:43 wiz Exp $
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Machine-dependent defines for new kernel debugger.
|
|
*/
|
|
#ifndef _PPC_DB_MACHDEP_H_
|
|
#define _PPC_DB_MACHDEP_H_
|
|
|
|
#include <vm/vm_param.h>
|
|
|
|
#define DB_ELF_SYMBOLS
|
|
#define DB_ELFSIZE 32
|
|
|
|
typedef vm_offset_t db_addr_t; /* address - unsigned */
|
|
typedef long db_expr_t; /* expression - signed */
|
|
struct powerpc_saved_state {
|
|
u_int32_t r[32]; /* data registers */
|
|
u_int32_t iar;
|
|
u_int32_t msr;
|
|
};
|
|
typedef struct powerpc_saved_state db_regs_t;
|
|
extern db_regs_t ddb_regs; /* register state */
|
|
#define DDB_REGS (&ddb_regs)
|
|
|
|
#define PC_REGS(regs) ((db_addr_t)(regs)->iar)
|
|
|
|
#define BKPT_INST 0x7C810808 /* breakpoint instruction */
|
|
|
|
#define BKPT_SIZE (4) /* size of breakpoint inst */
|
|
#define BKPT_SET(inst) (BKPT_INST)
|
|
|
|
#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->iar -= 4)
|
|
|
|
#define SR_SINGLESTEP 0x400
|
|
#define db_clear_single_step(regs) ((regs)->msr &= ~SR_SINGLESTEP)
|
|
#define db_set_single_step(regs) ((regs)->msr |= SR_SINGLESTEP)
|
|
|
|
#define T_BREAKPOINT 0xffff
|
|
#define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BREAKPOINT)
|
|
|
|
#define T_WATCHPOINT 0xeeee
|
|
#ifdef T_WATCHPOINT
|
|
#define IS_WATCHPOINT_TRAP(type, code) ((type) == T_WATCHPOINT)
|
|
#else
|
|
#define IS_WATCHPOINT_TRAP(type, code) 0
|
|
#endif
|
|
|
|
#define M_RTS 0xfc0007fe
|
|
#define I_RTS 0x4c000020
|
|
#define M_BC 0xfc000000
|
|
#define I_BC 0x40000000
|
|
#define M_B 0xfc000000
|
|
#define I_B 0x50000000
|
|
#define M_RFI 0xfc0007fe
|
|
#define I_RFI 0x4c000064
|
|
|
|
#define inst_trap_return(ins) (((ins)&M_RFI) == I_RFI)
|
|
#define inst_return(ins) (((ins)&M_RTS) == I_RTS)
|
|
#define inst_call(ins) (((ins)&M_BC ) == I_BC || \
|
|
((ins)&M_B ) == I_B )
|
|
#define inst_load(ins) 0
|
|
#define inst_store(ins) 0
|
|
|
|
#ifdef _KERNEL
|
|
|
|
void kdb_kintr(void *);
|
|
int kdb_trap(int, void *);
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* _PPC_DB_MACHDEP_H_ */
|