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/*- * 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: release/9.1.0/sys/powerpc/include/db_machdep.h 209975 2010-07-13 05:32:19Z nwhitehorn $ */ /* * Machine-dependent defines for new kernel debugger. */ #ifndef _POWERPC_DB_MACHDEP_H_ #define _POWERPC_DB_MACHDEP_H_ #include <vm/vm_param.h> #include <machine/elf.h> #define DB_ELF_SYMBOLS #define DB_ELFSIZE __ELF_WORD_SIZE #define BYTE_MSF (1) typedef vm_offset_t db_addr_t; /* address - unsigned */ typedef intptr_t db_expr_t; /* expression - signed */ #define PC_REGS(regs) ((db_addr_t)kdb_thrctx->pcb_lr) #define BKPT_INST 0x7C810808 /* breakpoint instruction */ #define BKPT_SIZE (4) /* size of breakpoint inst */ #define BKPT_SET(inst) (BKPT_INST) #define db_clear_single_step kdb_cpu_clear_singlestep #define db_set_single_step kdb_cpu_set_singlestep #if 0 #define SR_SINGLESTEP 0x400 #define db_clear_single_step(regs) ((regs)->msr &= ~SR_SINGLESTEP) #define db_set_single_step(regs) ((regs)->msr |= SR_SINGLESTEP) #endif #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 #define DB_SMALL_VALUE_MAX (0x7fffffff) #define DB_SMALL_VALUE_MIN (-0x40001) #endif /* _POWERPC_DB_MACHDEP_H_ */