1*42cc9952Sjasper /* $OpenBSD: db_machdep.h,v 1.21 2021/08/30 08:11:12 jasper Exp $ */ 2f58c7388Spefo 3f58c7388Spefo /* 4f58c7388Spefo * Copyright (c) 1998-2003 Opsycon AB (www.opsycon.se) 5f58c7388Spefo * 6f58c7388Spefo * Redistribution and use in source and binary forms, with or without 7f58c7388Spefo * modification, are permitted provided that the following conditions 8f58c7388Spefo * are met: 9f58c7388Spefo * 1. Redistributions of source code must retain the above copyright 10f58c7388Spefo * notice, this list of conditions and the following disclaimer. 11f58c7388Spefo * 2. Redistributions in binary form must reproduce the above copyright 12f58c7388Spefo * notice, this list of conditions and the following disclaimer in the 13f58c7388Spefo * documentation and/or other materials provided with the distribution. 14f58c7388Spefo * 15f58c7388Spefo * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 16f58c7388Spefo * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17f58c7388Spefo * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18f58c7388Spefo * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 19f58c7388Spefo * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20f58c7388Spefo * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21f58c7388Spefo * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22f58c7388Spefo * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23f58c7388Spefo * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24f58c7388Spefo * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25f58c7388Spefo * SUCH DAMAGE. 26f58c7388Spefo * 27f58c7388Spefo */ 28f58c7388Spefo 292fa72412Spirofti #ifndef _MIPS64_DB_MACHDEP_H_ 302fa72412Spirofti #define _MIPS64_DB_MACHDEP_H_ 31f58c7388Spefo 32f58c7388Spefo #include <machine/frame.h> 33f58c7388Spefo #include <machine/trap.h> 34f58c7388Spefo #include <uvm/uvm_param.h> 35f58c7388Spefo 36f58c7388Spefo #define DB_MACHINE_COMMANDS /* We have machine specific commands */ 37f58c7388Spefo 38b43ebd13Smpi typedef struct trapframe db_regs_t; 395d3b78d2Smiod extern db_regs_t ddb_regs; 40f58c7388Spefo 41f58c7388Spefo typedef long db_expr_t; 42f58c7388Spefo 43f58c7388Spefo #define SOFTWARE_SSTEP /* Need software single step */ 44f58c7388Spefo #define SOFTWARE_SSTEP_EMUL /* next_instr_address() emulates 100% */ 456d6b8a87Smpi vaddr_t next_instr_address(vaddr_t, int); 46f58c7388Spefo #define BKPT_SIZE (4) 47f58c7388Spefo #define BKPT_SET(ins) (BREAK_DDB) 48f58c7388Spefo #define DB_VALID_BREAKPOINT(addr) (((addr) & 3) == 0) 49f58c7388Spefo 50f58c7388Spefo #define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BREAK) 51f58c7388Spefo #define IS_WATCHPOINT_TRAP(type, code) (0) /* XXX mips3 watchpoint */ 52f58c7388Spefo 536d6b8a87Smpi #define PC_REGS(regs) ((vaddr_t)(regs)->pc) 54b30bd1c0Sespie #define SET_PC_REGS(regs, value) (regs)->pc = (register_t)(value) 55f58c7388Spefo 56f58c7388Spefo /* 57f58c7388Spefo * Test of instructions to see class. 58f58c7388Spefo */ 5923fa11dcSmiod #define inst_branch(i) (classify_insn(i) == INSNCLASS_BRANCH) 60f58c7388Spefo #define inst_trap_return(i) ((i) & 0) 6123fa11dcSmiod #define inst_call(i) (classify_insn(i) == INSNCLASS_CALL) 62f58c7388Spefo #define inst_return(i) ((i) == 0x03e00008) 63f58c7388Spefo 6499ca9df2Sgrange void db_machine_init(void); 65f58c7388Spefo 663edbacd7Ssyuu int db_enter_ddb(void); 673edbacd7Ssyuu void db_startcpu(int); 683edbacd7Ssyuu void db_stopcpu(int); 693edbacd7Ssyuu 706d6b8a87Smpi int dbmd_print_insn(uint32_t, vaddr_t, int (*)(const char *, ...)); 711a69401fSmiod 723edbacd7Ssyuu #define DDB_STATE_NOT_RUNNING 0 733edbacd7Ssyuu #define DDB_STATE_RUNNING 1 743edbacd7Ssyuu #define DDB_STATE_EXITING 2 753edbacd7Ssyuu 762fa72412Spirofti #endif /* !_MIPS64_DB_MACHDEP_H_ */ 77