1 /*- 2 * Copyright (c) 2015 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Semihalf under 6 * the sponsorship of the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 #include <sys/param.h> 33 #include <ddb/ddb.h> 34 #include <ddb/db_access.h> 35 #include <ddb/db_sym.h> 36 37 #include <machine/disassem.h> 38 39 static u_int db_disasm_read_word(vm_offset_t); 40 static void db_disasm_printaddr(vm_offset_t); 41 42 /* Glue code to interface db_disasm to the generic ARM disassembler */ 43 static const struct disasm_interface db_disasm_interface = { 44 .di_readword = db_disasm_read_word, 45 .di_printaddr = db_disasm_printaddr, 46 .di_printf = db_printf, 47 }; 48 49 static u_int 50 db_disasm_read_word(vm_offset_t address) 51 { 52 53 return (db_get_value(address, INSN_SIZE, 0)); 54 } 55 56 static void 57 db_disasm_printaddr(vm_offset_t address) 58 { 59 60 db_printsym((db_addr_t)address, DB_STGY_ANY); 61 } 62 63 vm_offset_t 64 db_disasm(vm_offset_t loc, bool altfmt) 65 { 66 67 return (disasm(&db_disasm_interface, loc, altfmt)); 68 } 69 70 /* End of db_disasm.c */ 71