1 /* $NetBSD: db_machdep.c,v 1.10 2022/02/24 08:06:41 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 1.10 2022/02/24 08:06:41 skrll Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/lwp.h> 37 38 #include <machine/db_machdep.h> 39 #include <machine/psl.h> 40 41 #include <ddb/db_command.h> 42 #include <ddb/db_output.h> 43 #include <ddb/db_variables.h> 44 #include <ddb/db_access.h> 45 46 #ifndef _KERNEL 47 #include <util.h> 48 #endif 49 50 db_regs_t ddb_regs; 51 const struct db_variable db_regs[] = { 52 { "flags", (long *)&ddb_regs.tf_flags, FCN_NULL, NULL }, 53 { "r1", (long *)&ddb_regs.tf_r1, FCN_NULL, NULL }, 54 { "r2(rp)", (long *)&ddb_regs.tf_rp, FCN_NULL, NULL }, 55 { "r3(fp)", (long *)&ddb_regs.tf_r3, FCN_NULL, NULL }, 56 { "r4", (long *)&ddb_regs.tf_r4, FCN_NULL, NULL }, 57 { "r5", (long *)&ddb_regs.tf_r5, FCN_NULL, NULL }, 58 { "r6", (long *)&ddb_regs.tf_r6, FCN_NULL, NULL }, 59 { "r7", (long *)&ddb_regs.tf_r7, FCN_NULL, NULL }, 60 { "r8", (long *)&ddb_regs.tf_r8, FCN_NULL, NULL }, 61 { "r9", (long *)&ddb_regs.tf_r9, FCN_NULL, NULL }, 62 { "r10", (long *)&ddb_regs.tf_r10, FCN_NULL, NULL }, 63 { "r11", (long *)&ddb_regs.tf_r11, FCN_NULL, NULL }, 64 { "r12", (long *)&ddb_regs.tf_r12, FCN_NULL, NULL }, 65 { "r13", (long *)&ddb_regs.tf_r13, FCN_NULL, NULL }, 66 { "r14", (long *)&ddb_regs.tf_r14, FCN_NULL, NULL }, 67 { "r15", (long *)&ddb_regs.tf_r15, FCN_NULL, NULL }, 68 { "r16", (long *)&ddb_regs.tf_r16, FCN_NULL, NULL }, 69 { "r17", (long *)&ddb_regs.tf_r17, FCN_NULL, NULL }, 70 { "r18", (long *)&ddb_regs.tf_r18, FCN_NULL, NULL }, 71 { "r19(t4)", (long *)&ddb_regs.tf_t4, FCN_NULL, NULL }, 72 { "r20(t3)", (long *)&ddb_regs.tf_t3, FCN_NULL, NULL }, 73 { "r21(t2)", (long *)&ddb_regs.tf_t2, FCN_NULL, NULL }, 74 { "r22(t1)", (long *)&ddb_regs.tf_t1, FCN_NULL, NULL }, 75 { "r23(arg3)", (long *)&ddb_regs.tf_arg3, FCN_NULL, NULL }, 76 { "r24(arg2)", (long *)&ddb_regs.tf_arg2, FCN_NULL, NULL }, 77 { "r25(arg1)", (long *)&ddb_regs.tf_arg1, FCN_NULL, NULL }, 78 { "r26(arg0)", (long *)&ddb_regs.tf_arg0, FCN_NULL, NULL }, 79 { "r27(dp)", (long *)&ddb_regs.tf_dp, FCN_NULL, NULL }, 80 { "r28(ret0)", (long *)&ddb_regs.tf_ret0, FCN_NULL, NULL }, 81 { "r29(ret1)", (long *)&ddb_regs.tf_ret1, FCN_NULL, NULL }, 82 { "r30(sp)", (long *)&ddb_regs.tf_sp, FCN_NULL, NULL }, 83 { "r31", (long *)&ddb_regs.tf_r31, FCN_NULL, NULL }, 84 85 { "sar", (long *)&ddb_regs.tf_sar, FCN_NULL, NULL }, 86 87 { "eirr", (long *)&ddb_regs.tf_eirr, FCN_NULL, NULL }, 88 { "eiem", (long *)&ddb_regs.tf_eiem, FCN_NULL, NULL }, 89 { "iir", (long *)&ddb_regs.tf_iir, FCN_NULL, NULL }, 90 { "isr", (long *)&ddb_regs.tf_isr, FCN_NULL, NULL }, 91 { "ior", (long *)&ddb_regs.tf_ior, FCN_NULL, NULL }, 92 { "ipsw", (long *)&ddb_regs.tf_ipsw, FCN_NULL, NULL }, 93 { "iisqh", (long *)&ddb_regs.tf_iisq_head, FCN_NULL, NULL }, 94 { "iioqh", (long *)&ddb_regs.tf_iioq_head, FCN_NULL, NULL }, 95 { "iisqt", (long *)&ddb_regs.tf_iisq_tail, FCN_NULL, NULL }, 96 { "iioqt", (long *)&ddb_regs.tf_iioq_tail, FCN_NULL, NULL }, 97 98 { "sr0", (long *)&ddb_regs.tf_sr0, FCN_NULL, NULL }, 99 { "sr1", (long *)&ddb_regs.tf_sr1, FCN_NULL, NULL }, 100 { "sr2", (long *)&ddb_regs.tf_sr2, FCN_NULL, NULL }, 101 { "sr3", (long *)&ddb_regs.tf_sr3, FCN_NULL, NULL }, 102 { "sr4", (long *)&ddb_regs.tf_sr4, FCN_NULL, NULL }, 103 { "sr5", (long *)&ddb_regs.tf_sr5, FCN_NULL, NULL }, 104 { "sr6", (long *)&ddb_regs.tf_sr6, FCN_NULL, NULL }, 105 { "sr7", (long *)&ddb_regs.tf_sr7, FCN_NULL, NULL }, 106 107 { "pidr1", (long *)&ddb_regs.tf_pidr1, FCN_NULL, NULL }, 108 { "pidr2", (long *)&ddb_regs.tf_pidr2, FCN_NULL, NULL }, 109 #ifdef pbably_not_worth_it 110 { "pidr3", (long *)&ddb_regs.tf_pidr3, FCN_NULL, NULL }, 111 { "pidr4", (long *)&ddb_regs.tf_pidr4, FCN_NULL, NULL }, 112 #endif 113 114 { "vtop", (long *)&ddb_regs.tf_vtop, FCN_NULL, NULL }, 115 { "cr24", (long *)&ddb_regs.tf_cr24, FCN_NULL, NULL }, 116 { "cr27", (long *)&ddb_regs.tf_cr27, FCN_NULL, NULL }, 117 { "cr28", (long *)&ddb_regs.tf_cr28, FCN_NULL, NULL }, 118 { "cr30", (long *)&ddb_regs.tf_cr30, FCN_NULL, NULL }, 119 }; 120 const struct db_variable * const db_eregs = db_regs + sizeof(db_regs)/sizeof(db_regs[0]); 121 122 const struct db_command db_machine_command_table[] = { 123 { DDB_ADD_CMD("frame", db_dump_trap, 0, 124 "Displays the contents of a trapframe", 125 "[/l] [addr]", 126 " addr:\tdisplay this trap frame (current kernel frame otherwise)\n" 127 " /l:\tdisplay the trap frame from lwp") }, 128 { DDB_END_CMD }, 129 }; 130 131 void 132 db_dump_trap(db_expr_t addr, bool have_addr, db_expr_t count, const char *modif) 133 { 134 struct trapframe *tf, *ktf, ltf; 135 const char *cp = modif; 136 bool lwpaddr = false; 137 char c; 138 char buf[64]; 139 140 tf = DDB_REGS; 141 while ((c = *cp++) != 0) { 142 if (c == 'l') 143 lwpaddr = true; 144 } 145 146 /* Or an arbitrary trapframe */ 147 if (have_addr) { 148 if (lwpaddr) { 149 lwp_t l; 150 151 db_read_bytes(addr, sizeof(l), (char *)&l); 152 ktf = (struct trapframe *)l.l_md.md_regs; 153 } else { 154 ktf = (struct trapframe *)addr; 155 } 156 db_read_bytes((db_addr_t)ktf, sizeof(ltf), (char *)<f); 157 tf = <f; 158 } 159 160 db_printf("General registers\n"); 161 db_printf("r00-03 %08x %08x %08x %08x\n", 162 0, tf->tf_r1, tf->tf_rp, tf->tf_r3); 163 db_printf("r04-07 %08x %08x %08x %08x\n", 164 tf->tf_r4, tf->tf_r5, tf->tf_r6, tf->tf_r7); 165 db_printf("r08-11 %08x %08x %08x %08x\n", 166 tf->tf_r8, tf->tf_r9, tf->tf_r10, tf->tf_r11); 167 db_printf("r12-15 %08x %08x %08x %08x\n", 168 tf->tf_r12, tf->tf_r13, tf->tf_r14, tf->tf_r15); 169 db_printf("r16-19 %08x %08x %08x %08x\n", 170 tf->tf_r16, tf->tf_r17, tf->tf_r18, tf->tf_t4); 171 db_printf("r20-23 %08x %08x %08x %08x\n", 172 tf->tf_t3, tf->tf_t2, tf->tf_t1, tf->tf_arg3); 173 db_printf("r24-27 %08x %08x %08x %08x\n", 174 tf->tf_arg2, tf->tf_arg1, tf->tf_arg0, tf->tf_dp); 175 db_printf("r28-31 %08x %08x %08x %08x\n", 176 tf->tf_ret0, tf->tf_ret1, tf->tf_sp, tf->tf_r31); 177 db_printf("\n"); 178 db_printf("Space registers\n"); 179 db_printf("s00-03 %08x %08x %08x %08x\n", 180 tf->tf_sr0, tf->tf_sr1, tf->tf_sr2, tf->tf_sr3); 181 db_printf("s04-07 %08x %08x %08x %08x\n", 182 tf->tf_sr4, tf->tf_sr5, tf->tf_sr6, tf->tf_sr7); 183 db_printf("\n"); 184 db_printf("Instruction queues\n"); 185 db_printf("iisq: %08x %08x\niioq: %08x %08x\n", 186 tf->tf_iisq_head, tf->tf_iisq_tail, tf->tf_iioq_head, 187 tf->tf_iioq_tail); 188 db_printf("\n"); 189 db_printf("Interrupt state\n"); 190 db_printf("isr: %08x\nior: %08x\niir: %08x\n", 191 tf->tf_isr, tf->tf_ior, tf->tf_iir); 192 db_printf("\n"); 193 db_printf("Other state\n"); 194 db_printf("eiem: %08x\n", tf->tf_eiem); 195 196 snprintb(buf, sizeof(buf), PSW_BITS, tf->tf_ipsw); 197 db_printf("ipsw: %s\n", buf); 198 db_printf("flags: %08x\n", tf->tf_flags); 199 db_printf("sar: %08x\n", tf->tf_sar); 200 db_printf("pidr1: %08x\n", tf->tf_pidr1); /* cr8 */ 201 db_printf("pidr2: %08x\n", tf->tf_pidr2); /* cr9 */ 202 #if pbably_not_worth_it 203 db_printf("pidr3: %08x\n", tf->tf_pidr3); /* cr12 */ 204 db_printf("pidr4: %08x\n", tf->tf_pidr4); /* cr13 */ 205 #endif 206 db_printf("rctr: %08x\n", tf->tf_rctr); /* cr0 */ 207 db_printf("ccr: %08x\n", tf->tf_ccr); /* cr10 */ 208 db_printf("eirr: %08x\n", tf->tf_eirr); /* cr23 - DDB */ 209 db_printf("cr24: %08x\n", tf->tf_cr24); /* cr24 - DDB */ 210 db_printf("vtop: %08x\n", tf->tf_vtop); /* cr25 - DDB */ 211 db_printf("cr27: %08x\n", tf->tf_cr27); /* - DDB */ 212 db_printf("cr28: %08x\n", tf->tf_cr28); /* - DDB */ 213 db_printf("cr30: %08x\n", tf->tf_cr30); /* uaddr */ 214 } 215
Indexes created Sun Oct 25 00:26:45 UTC 2026