FreeBSD/Linux Kernel Cross Reference
sys/arm64/arm64/db_disasm.c

     /*-
      * Copyright (c) 2015 The FreeBSD Foundation
      * All rights reserved.
      *
      * This software was developed by Semihalf under
      * the sponsorship of the FreeBSD Foundation.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: releng/11.2/sys/arm64/arm64/db_disasm.c 295432 2016-02-09 10:18:22Z andrew $");
    #include <sys/param.h>
    #include <ddb/ddb.h>
    #include <ddb/db_access.h>
    #include <ddb/db_sym.h>
    
    #include <machine/disassem.h>
    
    static u_int db_disasm_read_word(vm_offset_t);
    static void db_disasm_printaddr(vm_offset_t);
    
    /* Glue code to interface db_disasm to the generic ARM disassembler */
    static const struct disasm_interface db_disasm_interface = {
            .di_readword = db_disasm_read_word,
            .di_printaddr = db_disasm_printaddr,
            .di_printf = db_printf,
    };
    
    static u_int
    db_disasm_read_word(vm_offset_t address)
    {
    
            return (db_get_value(address, INSN_SIZE, 0));
    }
    
    static void
    db_disasm_printaddr(vm_offset_t address)
    {
    
            db_printsym((db_addr_t)address, DB_STGY_ANY);
    }
    
    vm_offset_t
    db_disasm(vm_offset_t loc, bool altfmt)
    {
    
            return (disasm(&db_disasm_interface, loc, altfmt));
    }
    
    /* End of db_disasm.c */

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