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