1/* $NetBSD: db_machdep.c,v 1.4 2011/12/31 08:34:49 skrll Exp $ */ 2 3/*- 4 * Copyright (c) 2010 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Nick Hudson 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include <sys/cdefs.h> 33__KERNEL_RCSID(0, "$NetBSD: db_machdep.c,v 1.4 2011/12/31 08:34:49 skrll Exp $"); 34 35#include <sys/param.h> 36#include <sys/lwp.h> 37 38#include <machine/db_machdep.h> 39 40#include <ddb/db_command.h> 41#include <ddb/db_output.h> 42#include <ddb/db_variables.h> 43#include <ddb/db_access.h> 44 45db_regs_t ddb_regs; 46const struct db_variable db_regs[] = { 47 { "flags", (long *)&ddb_regs.tf_flags, FCN_NULL, NULL }, 48 { "r1", (long *)&ddb_regs.tf_r1, FCN_NULL, NULL }, 49 { "r2(rp)", (long *)&ddb_regs.tf_rp, FCN_NULL, NULL }, 50 { "r3(fp)", (long *)&ddb_regs.tf_r3, FCN_NULL, NULL }, 51 { "r4", (long *)&ddb_regs.tf_r4, FCN_NULL, NULL }, 52 { "r5", (long *)&ddb_regs.tf_r5, FCN_NULL, NULL }, 53 { "r6", (long *)&ddb_regs.tf_r6, FCN_NULL, NULL }, 54 { "r7", (long *)&ddb_regs.tf_r7, FCN_NULL, NULL }, 55 { "r8", (long *)&ddb_regs.tf_r8, FCN_NULL, NULL }, 56 { "r9", (long *)&ddb_regs.tf_r9, FCN_NULL, NULL }, 57 { "r10", (long *)&ddb_regs.tf_r10, FCN_NULL, NULL }, 58 { "r11", (long *)&ddb_regs.tf_r11, FCN_NULL, NULL }, 59 { "r12", (long *)&ddb_regs.tf_r12, FCN_NULL, NULL }, 60 { "r13", (long *)&ddb_regs.tf_r13, FCN_NULL, NULL }, 61 { "r14", (long *)&ddb_regs.tf_r14, FCN_NULL, NULL }, 62 { "r15", (long *)&ddb_regs.tf_r15, FCN_NULL, NULL }, 63 { "r16", (long *)&ddb_regs.tf_r16, FCN_NULL, NULL }, 64 { "r17", (long *)&ddb_regs.tf_r17, FCN_NULL, NULL }, 65 { "r18", (long *)&ddb_regs.tf_r18, FCN_NULL, NULL }, 66 { "r19(t4)", (long *)&ddb_regs.tf_t4, FCN_NULL, NULL }, 67 { "r20(t3)", (long *)&ddb_regs.tf_t3, FCN_NULL, NULL }, 68 { "r21(t2)", (long *)&ddb_regs.tf_t2, FCN_NULL, NULL }, 69 { "r22(t1)", (long *)&ddb_regs.tf_t1, FCN_NULL, NULL }, 70 { "r23(arg3)", (long *)&ddb_regs.tf_arg3, FCN_NULL, NULL }, 71 { "r24(arg2)", (long *)&ddb_regs.tf_arg2, FCN_NULL, NULL }, 72 { "r25(arg1)", (long *)&ddb_regs.tf_arg1, FCN_NULL, NULL }, 73 { "r26(arg0)", (long *)&ddb_regs.tf_arg0, FCN_NULL, NULL }, 74 { "r27(dp)", (long *)&ddb_regs.tf_dp, FCN_NULL, NULL }, 75 { "r28(ret0)", (long *)&ddb_regs.tf_ret0, FCN_NULL, NULL }, 76 { "r29(ret1)", (long *)&ddb_regs.tf_ret1, FCN_NULL, NULL }, 77 { "r30(sp)", (long *)&ddb_regs.tf_sp, FCN_NULL, NULL }, 78 { "r31", (long *)&ddb_regs.tf_r31, FCN_NULL, NULL }, 79 80 { "sar", (long *)&ddb_regs.tf_sar, FCN_NULL, NULL }, 81 82 { "eirr", (long *)&ddb_regs.tf_eirr, FCN_NULL, NULL }, 83 { "eiem", (long *)&ddb_regs.tf_eiem, FCN_NULL, NULL }, 84 { "iir", (long *)&ddb_regs.tf_iir, FCN_NULL, NULL }, 85 { "isr", (long *)&ddb_regs.tf_isr, FCN_NULL, NULL }, 86 { "ior", (long *)&ddb_regs.tf_ior, FCN_NULL, NULL }, 87 { "ipsw", (long *)&ddb_regs.tf_ipsw, FCN_NULL, NULL }, 88 { "iisqh", (long *)&ddb_regs.tf_iisq_head, FCN_NULL, NULL }, 89 { "iioqh", (long *)&ddb_regs.tf_iioq_head, FCN_NULL, NULL }, 90 { "iisqt", (long *)&ddb_regs.tf_iisq_tail, FCN_NULL, NULL }, 91 { "iioqt", (long *)&ddb_regs.tf_iioq_tail, FCN_NULL, NULL }, 92 93 { "sr0", (long *)&ddb_regs.tf_sr0, FCN_NULL, NULL }, 94 { "sr1", (long *)&ddb_regs.tf_sr1, FCN_NULL, NULL }, 95 { "sr2", (long *)&ddb_regs.tf_sr2, FCN_NULL, NULL }, 96 { "sr3", (long *)&ddb_regs.tf_sr3, FCN_NULL, NULL }, 97 { "sr4", (long *)&ddb_regs.tf_sr4, FCN_NULL, NULL }, 98 { "sr5", (long *)&ddb_regs.tf_sr5, FCN_NULL, NULL }, 99 { "sr6", (long *)&ddb_regs.tf_sr6, FCN_NULL, NULL }, 100 { "sr7", (long *)&ddb_regs.tf_sr7, FCN_NULL, NULL }, 101 102 { "pidr1", (long *)&ddb_regs.tf_pidr1, FCN_NULL, NULL }, 103 { "pidr2", (long *)&ddb_regs.tf_pidr2, FCN_NULL, NULL }, 104#ifdef pbably_not_worth_it 105 { "pidr3", (long *)&ddb_regs.tf_pidr3, FCN_NULL, NULL }, 106 { "pidr4", (long *)&ddb_regs.tf_pidr4, FCN_NULL, NULL }, 107#endif 108 109 { "vtop", (long *)&ddb_regs.tf_vtop, FCN_NULL, NULL }, 110 { "cr24", (long *)&ddb_regs.tf_cr24, FCN_NULL, NULL }, 111 { "cr27", (long *)&ddb_regs.tf_cr27, FCN_NULL, NULL }, 112 { "cr28", (long *)&ddb_regs.tf_cr28, FCN_NULL, NULL }, 113 { "cr30", (long *)&ddb_regs.tf_cr30, FCN_NULL, NULL }, 114}; 115const struct db_variable * const db_eregs = db_regs + sizeof(db_regs)/sizeof(db_regs[0]); 116 117const struct db_command db_machine_command_table[] = { 118 { DDB_ADD_CMD("frame", db_dump_trap, 0, 119 "Displays the contents of a trapframe", 120 "[/l] [addr]", 121 " addr:\tdisplay this trap frame (current kernel frame otherwise)\n" 122 " /l:\tdisplay the trap frame from lwp") }, 123 { DDB_ADD_CMD(NULL, NULL, 0, NULL, NULL, NULL) } 124}; 125 126void 127db_dump_trap(db_expr_t addr, bool have_addr, db_expr_t count, const char *modif) 128{ 129 struct trapframe *tf, *ktf, ltf; 130 const char *cp = modif; 131 bool lwpaddr = false; 132 char c; 133 134 tf = DDB_REGS; 135 while ((c = *cp++) != 0) { 136 if (c == 'l') 137 lwpaddr = true; 138 } 139 140 /* Or an arbitrary trapframe */ 141 if (have_addr) { 142 if (lwpaddr) { 143 lwp_t l; 144 145 db_read_bytes(addr, sizeof(l), (char *)&l); 146 ktf = (struct trapframe *)l.l_md.md_regs; 147 } else { 148 ktf = (struct trapframe *)addr; 149 } 150 db_read_bytes((db_addr_t)ktf, sizeof(ltf), (char *)<f); 151 tf = <f; 152 } 153 154 db_printf("General registers\n"); 155 db_printf("r00-03 %08x %08x %08x %08x\n", 156 0, tf->tf_r1, tf->tf_rp, tf->tf_r3); 157 db_printf("r04-07 %08x %08x %08x %08x\n", 158 tf->tf_r4, tf->tf_r5, tf->tf_r6, tf->tf_r7); 159 db_printf("r08-11 %08x %08x %08x %08x\n", 160 tf->tf_r8, tf->tf_r9, tf->tf_r10, tf->tf_r11); 161 db_printf("r12-15 %08x %08x %08x %08x\n", 162 tf->tf_r12, tf->tf_r13, tf->tf_r14, tf->tf_r15); 163 db_printf("r16-19 %08x %08x %08x %08x\n", 164 tf->tf_r16, tf->tf_r17, tf->tf_r18, tf->tf_t4); 165 db_printf("r20-23 %08x %08x %08x %08x\n", 166 tf->tf_t3, tf->tf_t2, tf->tf_t1, tf->tf_arg3); 167 db_printf("r24-27 %08x %08x %08x %08x\n", 168 tf->tf_arg2, tf->tf_arg1, tf->tf_arg0, tf->tf_dp); 169 db_printf("r28-31 %08x %08x %08x %08x\n", 170 tf->tf_ret0, tf->tf_ret1, tf->tf_sp, tf->tf_r31); 171 db_printf("\n"); 172 db_printf("Space registers\n"); 173 db_printf("s00-03 %08x %08x %08x %08x\n", 174 tf->tf_sr0, tf->tf_sr1, tf->tf_sr2, tf->tf_sr3); 175 db_printf("s04-07 %08x %08x %08x %08x\n", 176 tf->tf_sr4, tf->tf_sr5, tf->tf_sr6, tf->tf_sr7); 177 db_printf("\n"); 178 db_printf("Instruction queues\n"); 179 db_printf("iisq: %08x %08x\niioq: %08x %08x\n", 180 tf->tf_iisq_head, tf->tf_iisq_tail, tf->tf_iioq_head, 181 tf->tf_iioq_tail); 182 db_printf("\n"); 183 db_printf("Interrupt state\n"); 184 db_printf("isr: %08x\nior: %08x\niir: %08x\n", 185 tf->tf_isr, tf->tf_ior, tf->tf_iir); 186 db_printf("\n"); 187 db_printf("Other state\n"); 188 db_printf("eiem: %08x\n", tf->tf_eiem); 189 db_printf("ipsw: %08x\n", tf->tf_ipsw); 190 db_printf("flags: %08x\n", tf->tf_flags); 191 db_printf("sar: %08x\n", tf->tf_sar); 192 db_printf("pidr1: %08x\n", tf->tf_pidr1); /* cr8 */ 193 db_printf("pidr2: %08x\n", tf->tf_pidr2); /* cr9 */ 194#if pbably_not_worth_it 195 db_printf("pidr3: %08x\n", tf->tf_pidr3); /* cr12 */ 196 db_printf("pidr4: %08x\n", tf->tf_pidr4); /* cr13 */ 197#endif 198 db_printf("rctr: %08x\n", tf->tf_rctr); /* cr0 */ 199 db_printf("ccr: %08x\n", tf->tf_ccr); /* cr10 */ 200 db_printf("eirr: %08x\n", tf->tf_eirr); /* cr23 - DDB */ 201 db_printf("cr24: %08x\n", tf->tf_cr24); /* cr24 - DDB */ 202 db_printf("vtop: %08x\n", tf->tf_vtop); /* cr25 - DDB */ 203 db_printf("cr27: %08x\n", tf->tf_cr27); /* - DDB */ 204 db_printf("cr28: %08x\n", tf->tf_cr28); /* - DDB */ 205 db_printf("cr30: %08x\n", tf->tf_cr30); /* uaddr */ 206} 207