1139735Simp/*- 2129198Scognet * Mach Operating System 3129198Scognet * Copyright (c) 1991,1990 Carnegie Mellon University 4129198Scognet * All Rights Reserved. 5129198Scognet * 6129198Scognet * Permission to use, copy, modify and distribute this software and its 7129198Scognet * documentation is hereby granted, provided that both the copyright 8129198Scognet * notice and this permission notice appear in all copies of the 9129198Scognet * software, derivative works or modified versions, and any portions 10129198Scognet * thereof, and that both notices appear in supporting documentation. 11129198Scognet * 12129198Scognet * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 13129198Scognet * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 14129198Scognet * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 15129198Scognet * 16129198Scognet * Carnegie Mellon requests users of this software to return to 17129198Scognet * 18129198Scognet * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 19129198Scognet * School of Computer Science 20129198Scognet * Carnegie Mellon University 21129198Scognet * Pittsburgh PA 15213-3890 22129198Scognet * 23129198Scognet * any improvements or extensions that they make and grant Carnegie Mellon 24129198Scognet * the rights to redistribute these changes. 25129198Scognet * 26129198Scognet * from: FreeBSD: src/sys/i386/include/db_machdep.h,v 1.16 1999/10/04 27129198Scognet * $FreeBSD$ 28129198Scognet */ 29129198Scognet 30129198Scognet#ifndef _MACHINE_DB_MACHDEP_H_ 31129198Scognet#define _MACHINE_DB_MACHDEP_H_ 32129198Scognet 33129198Scognet#include <machine/frame.h> 34129198Scognet#include <machine/trap.h> 35129198Scognet#include <machine/armreg.h> 36129198Scognet 37129198Scognet#define T_BREAKPOINT (1) 38129198Scognettypedef vm_offset_t db_addr_t; 39129198Scognettypedef int db_expr_t; 40129198Scognet 41132059Scognet#define PC_REGS() ((db_addr_t)kdb_thrctx->un_32.pcb32_pc) 42129198Scognet 43129198Scognet#define BKPT_INST (KERNEL_BREAKPOINT) 44129198Scognet#define BKPT_SIZE (INSN_SIZE) 45129198Scognet#define BKPT_SET(inst) (BKPT_INST) 46129198Scognet 47129198Scognet#define BKPT_SKIP do { \ 48137940Scognet kdb_frame->tf_pc += BKPT_SIZE; \ 49129198Scognet} while (0) 50129198Scognet 51137975Scognet#define SOFTWARE_SSTEP 1 52129198Scognet 53129198Scognet#define IS_BREAKPOINT_TRAP(type, code) (type == T_BREAKPOINT) 54129198Scognet#define IS_WATCHPOINT_TRAP(type, code) (0) 55129198Scognet 56137940Scognet 57129198Scognet#define inst_trap_return(ins) (0) 58137940Scognet/* ldmxx reg, {..., pc} 59137940Scognet 01800000 stack mode 60137940Scognet 000f0000 register 61137940Scognet 0000ffff register list */ 62137940Scognet/* mov pc, reg 63137940Scognet 0000000f register */ 64137940Scognet#define inst_return(ins) (((ins) & 0x0e108000) == 0x08108000 || \ 65137975Scognet ((ins) & 0x0ff0fff0) == 0x01a0f000 || \ 66137975Scognet ((ins) & 0x0ffffff0) == 0x012fff10) /* bx */ 67137940Scognet/* bl ... 68137940Scognet 00ffffff offset>>2 */ 69137940Scognet#define inst_call(ins) (((ins) & 0x0f000000) == 0x0b000000) 70137940Scognet/* b ... 71137940Scognet 00ffffff offset>>2 */ 72137940Scognet/* ldr pc, [pc, reg, lsl #2] 73137940Scognet 0000000f register */ 74137940Scognet 75137975Scognet#define inst_branch(ins) (((ins) & 0x0f000000) == 0x0a000000 || \ 76181174Scognet ((ins) & 0x0fdffff0) == 0x079ff100 || \ 77181253Scognet ((ins) & 0x0cf0f000) == 0x0490f000 || \ 78181253Scognet ((ins) & 0x0ffffff0) == 0x012fff30 || /* blx */ \ 79181253Scognet ((ins) & 0x0de0f000) == 0x0080f000) 80137940Scognet 81129198Scognet#define inst_load(ins) (0) 82129198Scognet#define inst_store(ins) (0) 83129198Scognet 84137975Scognet#define next_instr_address(pc, bd) ((bd) ? (pc) : ((pc) + INSN_SIZE)) 85137975Scognet 86129198Scognet#define DB_SMALL_VALUE_MAX (0x7fffffff) 87129198Scognet#define DB_SMALL_VALUE_MIN (-0x40001) 88129198Scognet 89137975Scognet#define DB_ELFSIZE 32 90129198Scognet 91129198Scognetint db_validate_address(vm_offset_t); 92137975Scognet 93137975Scognetu_int branch_taken (u_int insn, u_int pc); 94137975Scognet 95160740Scognet#ifdef __ARMEB__ 96160740Scognet#define BYTE_MSF (1) 97160740Scognet#endif 98129198Scognet#endif /* !_MACHINE_DB_MACHDEP_H_ */ 99