2 * $Id: x86dasm.c,v 1.4 2007-10-08 11:48:10 nkeynes Exp $
4 * Wrapper around i386-dis to supply the same behaviour as the other
5 * disassembly functions.
7 * Copyright (c) 2005 Nathan Keynes.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
24 #include "sh4/sh4core.h"
26 extern const struct reg_desc_struct sh4_reg_map[];
27 const struct cpu_desc_struct x86_cpu_desc =
28 { "x86", x86_disasm_instruction, NULL, mem_has_page,
30 (char *)&sh4r, sizeof(sh4r), sh4_reg_map,
33 static int x86_disasm_output( void *data, const char *format, ... );
34 static void x86_print_address( bfd_vma memaddr, struct disassemble_info *info );
36 static struct disassemble_info x86_disasm_info;
38 static x86_symbol *x86_symtab;
39 static int x86_num_symbols = 0;
41 void x86_disasm_block(FILE *out, void *start, uint32_t len)
43 uint32_t start_addr = (uint32_t)start;
45 x86_disasm_init( start, start_addr, len );
46 for( pc = start_addr; pc < start_addr + len; ) {
49 uint32_t pc2 = x86_disasm_instruction( pc, buf, sizeof(buf), op );
50 fprintf( out, "%08X: %-20s %s\n", pc, op, buf );
55 void x86_disasm_init(unsigned char *buf, uint32_t vma, int buflen)
57 init_disassemble_info( &x86_disasm_info, NULL, x86_disasm_output );
58 x86_disasm_info.arch = bfd_arch_i386;
59 x86_disasm_info.mach = bfd_mach_i386_i386_intel_syntax;
60 x86_disasm_info.endian = BFD_ENDIAN_LITTLE;
61 x86_disasm_info.buffer = buf;
62 x86_disasm_info.buffer_vma = vma;
63 x86_disasm_info.buffer_length = buflen;
64 x86_disasm_info.print_address_func = x86_print_address;
67 void x86_set_symtab( x86_symbol *symtab, int num_symbols )
70 x86_num_symbols = num_symbols;
73 static const char *x86_find_symbol( bfd_vma memaddr, struct disassemble_info *info )
76 for( i=0; i<x86_num_symbols; i++ ) {
77 if( x86_symtab[i].ptr == (void *)(uint32_t)memaddr ) {
78 return x86_symtab[i].name;
84 static void x86_print_address( bfd_vma memaddr, struct disassemble_info *info )
86 const char *sym = x86_find_symbol(memaddr, info);
87 info->fprintf_func( info->stream, "%08X", memaddr );
89 info->fprintf_func( info->stream, " <%s>", sym );
93 uint32_t x86_disasm_instruction( uint32_t pc, char *buf, int len, char *opcode )
97 x86_disasm_info.stream = buf;
99 count = print_insn_i386_att( pc, &x86_disasm_info );
101 unsigned char tmp[count];
102 x86_disasm_info.read_memory_func( pc, tmp, count, &x86_disasm_info );
103 for( i=0; i<count; i++ ) {
104 sprintf( opcode, "%02X ", ((unsigned int)tmp[i])&0xFF );
112 int x86_disasm_output( void *data, const char *format, ... )
114 char *p = (char *)data;
118 va_start( ap, format );
119 n = vsprintf( p, format, ap );
.