/* $OpenBSD: db_machdep.h,v 1.13 2007/11/14 17:54:24 miod Exp $ */ /* * Mach Operating System * Copyright (c) 1993-1991 Carnegie Mellon University * Copyright (c) 1991 OMRON Corporation * 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 AND OMRON ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON AND OMRON DISCLAIM 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 _M88K_DB_MACHDEP_H_ #define _M88K_DB_MACHDEP_H_ /* trap numbers used by ddb */ #define DDB_ENTRY_BKPT_NO 130 #define DDB_ENTRY_TRACE_NO 131 #define DDB_ENTRY_TRAP_NO 132 #ifndef _LOCORE #include <machine/reg.h> #include <machine/trap.h> #include <uvm/uvm_param.h> #define SET_PC_REGS(regs, value) \ do { \ (regs)->sxip = (value); \ (regs)->snip = (value) + 4; \ } while (0) #ifdef DDB #define BKPT_SIZE (4) /* number of bytes in bkpt inst. */ #define BKPT_INST (0xf000d000 | DDB_ENTRY_BKPT_NO) /* tb0, 0,r0, 130 */ #define BKPT_SET(inst) (BKPT_INST) /* Entry trap for the debugger - used for inline assembly breaks*/ #define ENTRY_ASM "tb0 0, r0, 132" typedef vaddr_t db_addr_t; typedef long db_expr_t; typedef struct reg db_regs_t; extern db_regs_t ddb_regs; /* register state */ #define DDB_REGS (&ddb_regs) int inst_load(u_int); int inst_store(u_int); int ddb_break_trap(int, db_regs_t *); int ddb_entry_trap(int, db_regs_t *); void m88k_print_instruction(int, u_int, u_int32_t); /* db_disasm.c */ /* * inst_call(ins) - is the instruction a function call. * Could be either bsr or jsr. */ #define inst_call(I) \ (((I) & 0xf8000000) == 0xc8000000 /* bsr */ || \ ((I) & 0xfffffbe0) == 0xf400c800 /* jsr */) /* * inst_return(ins) - is the instruction a function call return. * Not mutually exclusive with inst_branch. Should be a jmp r1. */ #define inst_return(I) (((I) & 0xfffffbff) == 0xf400c001) /* * inst_trap_return(ins) - is the instruction a return from trap. * Should be a rte. */ #define inst_trap_return(I) ((I) == 0xf400c000) /* breakpoint/watchpoint foo */ #define IS_BREAKPOINT_TRAP(type,code) ((type)==T_KDB_BREAK) #define IS_WATCHPOINT_TRAP(type,code) 0 /* machine specific commands have been added to ddb */ #define DB_MACHINE_COMMANDS #define DB_AOUT_SYMBOLS #ifdef MULTIPROCESSOR extern cpuid_t ddb_mp_nextcpu; #endif #endif /* DDB */ #endif /* _LOCORE */ #endif /* _M88K_DB_MACHDEP_H_ */