160727d8bSWarner Losh /*- 2f9bac91bSBenno Rice * Mach Operating System 3f9bac91bSBenno Rice * Copyright (c) 1992 Carnegie Mellon University 4f9bac91bSBenno Rice * All Rights Reserved. 5f9bac91bSBenno Rice * 6f9bac91bSBenno Rice * Permission to use, copy, modify and distribute this software and its 7f9bac91bSBenno Rice * documentation is hereby granted, provided that both the copyright 8f9bac91bSBenno Rice * notice and this permission notice appear in all copies of the 9f9bac91bSBenno Rice * software, derivative works or modified versions, and any portions 10f9bac91bSBenno Rice * thereof, and that both notices appear in supporting documentation. 11f9bac91bSBenno Rice * 12f9bac91bSBenno Rice * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 13f9bac91bSBenno Rice * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 14f9bac91bSBenno Rice * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 15f9bac91bSBenno Rice * 16f9bac91bSBenno Rice * Carnegie Mellon requests users of this software to return to 17f9bac91bSBenno Rice * 18f9bac91bSBenno Rice * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 19f9bac91bSBenno Rice * School of Computer Science 20f9bac91bSBenno Rice * Carnegie Mellon University 21f9bac91bSBenno Rice * Pittsburgh PA 15213-3890 22f9bac91bSBenno Rice * 23f9bac91bSBenno Rice * any improvements or extensions that they make and grant Carnegie Mellon 24f9bac91bSBenno Rice * the rights to redistribute these changes. 25f9bac91bSBenno Rice * 26f9bac91bSBenno Rice * $OpenBSD: db_machdep.h,v 1.2 1997/03/21 00:48:48 niklas Exp $ 27f9bac91bSBenno Rice * $NetBSD: db_machdep.h,v 1.4.22.1 2000/08/05 11:10:43 wiz Exp $ 28f9bac91bSBenno Rice */ 29f9bac91bSBenno Rice 30f9bac91bSBenno Rice /* 31f9bac91bSBenno Rice * Machine-dependent defines for new kernel debugger. 32f9bac91bSBenno Rice */ 3345b4eca5SBenno Rice #ifndef _POWERPC_DB_MACHDEP_H_ 3445b4eca5SBenno Rice #define _POWERPC_DB_MACHDEP_H_ 3545b4eca5SBenno Rice 36f9bac91bSBenno Rice #include <vm/vm_param.h> 37*c3e289e1SNathan Whitehorn #include <machine/elf.h> 38f9bac91bSBenno Rice 39f9bac91bSBenno Rice #define DB_ELF_SYMBOLS 40*c3e289e1SNathan Whitehorn #define DB_ELFSIZE __ELF_WORD_SIZE 41f9bac91bSBenno Rice 42f9bac91bSBenno Rice typedef vm_offset_t db_addr_t; /* address - unsigned */ 43*c3e289e1SNathan Whitehorn typedef intptr_t db_expr_t; /* expression - signed */ 44f9bac91bSBenno Rice 455f40873aSPeter Grehan #define PC_REGS(regs) ((db_addr_t)kdb_thrctx->pcb_lr) 46f9bac91bSBenno Rice 47f9bac91bSBenno Rice #define BKPT_INST 0x7C810808 /* breakpoint instruction */ 48f9bac91bSBenno Rice 49f9bac91bSBenno Rice #define BKPT_SIZE (4) /* size of breakpoint inst */ 50f9bac91bSBenno Rice #define BKPT_SET(inst) (BKPT_INST) 51f9bac91bSBenno Rice 525f40873aSPeter Grehan #define db_clear_single_step kdb_cpu_clear_singlestep 535f40873aSPeter Grehan #define db_set_single_step kdb_cpu_set_singlestep 54f9bac91bSBenno Rice 555f40873aSPeter Grehan #if 0 56f9bac91bSBenno Rice #define SR_SINGLESTEP 0x400 57f9bac91bSBenno Rice #define db_clear_single_step(regs) ((regs)->msr &= ~SR_SINGLESTEP) 58f9bac91bSBenno Rice #define db_set_single_step(regs) ((regs)->msr |= SR_SINGLESTEP) 595f40873aSPeter Grehan #endif 60f9bac91bSBenno Rice 61f9bac91bSBenno Rice #define T_BREAKPOINT 0xffff 62f9bac91bSBenno Rice #define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BREAKPOINT) 63f9bac91bSBenno Rice 64f9bac91bSBenno Rice #define T_WATCHPOINT 0xeeee 65f9bac91bSBenno Rice #ifdef T_WATCHPOINT 66f9bac91bSBenno Rice #define IS_WATCHPOINT_TRAP(type, code) ((type) == T_WATCHPOINT) 67f9bac91bSBenno Rice #else 68f9bac91bSBenno Rice #define IS_WATCHPOINT_TRAP(type, code) 0 69f9bac91bSBenno Rice #endif 70f9bac91bSBenno Rice 71f9bac91bSBenno Rice #define M_RTS 0xfc0007fe 72f9bac91bSBenno Rice #define I_RTS 0x4c000020 73f9bac91bSBenno Rice #define M_BC 0xfc000000 74f9bac91bSBenno Rice #define I_BC 0x40000000 75f9bac91bSBenno Rice #define M_B 0xfc000000 76f9bac91bSBenno Rice #define I_B 0x50000000 77f9bac91bSBenno Rice #define M_RFI 0xfc0007fe 78f9bac91bSBenno Rice #define I_RFI 0x4c000064 79f9bac91bSBenno Rice 80f9bac91bSBenno Rice #define inst_trap_return(ins) (((ins)&M_RFI) == I_RFI) 81f9bac91bSBenno Rice #define inst_return(ins) (((ins)&M_RTS) == I_RTS) 82f9bac91bSBenno Rice #define inst_call(ins) (((ins)&M_BC ) == I_BC || \ 83f9bac91bSBenno Rice ((ins)&M_B ) == I_B ) 84f9bac91bSBenno Rice #define inst_load(ins) 0 85f9bac91bSBenno Rice #define inst_store(ins) 0 86f9bac91bSBenno Rice 8745b4eca5SBenno Rice #endif /* _POWERPC_DB_MACHDEP_H_ */ 88