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.
22 #include "x86dasm/x86dasm.h"
23 #include "x86dasm/bfd.h"
24 #include "x86dasm/dis-asm.h"
26 #include "sh4/sh4trans.h"
28 const struct cpu_desc_struct x86_cpu_desc =
29 { "x86", (disasm_func_t)x86_disasm_instruction, NULL, mem_has_page,
34 static int x86_disasm_output( void *data, const char *format, ... );
35 static void x86_print_address( bfd_vma memaddr, struct disassemble_info *info );
37 static struct disassemble_info x86_disasm_info;
39 static x86_symbol *x86_symtab;
40 static int x86_num_symbols = 0;
43 void xlat_disasm_block( FILE *out, void *block )
45 uint32_t buflen = xlat_get_code_size(block);
46 x86_set_symtab( NULL, 0 );
47 x86_disasm_block( out, block, buflen );
50 void x86_disasm_block(FILE *out, void *start, uint32_t len)
52 uintptr_t start_addr = (uintptr_t)start;
54 x86_disasm_init( start, start_addr, len );
55 for( pc = start_addr; pc < start_addr + len; ) {
58 uintptr_t pc2 = x86_disasm_instruction( pc, buf, sizeof(buf), op );
59 fprintf( out, "%08X: %-20s %s\n", (unsigned int)pc, op, buf );
64 void x86_disasm_init(unsigned char *buf, uintptr_t vma, int buflen)
66 init_disassemble_info( &x86_disasm_info, NULL, x86_disasm_output );
67 x86_disasm_info.arch = bfd_arch_i386;
68 #if SIZEOF_VOID_P == 8
69 x86_disasm_info.mach = bfd_mach_x86_64_intel_syntax;
71 x86_disasm_info.mach = bfd_mach_i386_i386_intel_syntax;
73 x86_disasm_info.endian = BFD_ENDIAN_LITTLE;
74 x86_disasm_info.buffer = buf;
75 x86_disasm_info.buffer_vma = vma;
76 x86_disasm_info.buffer_length = buflen;
77 x86_disasm_info.print_address_func = x86_print_address;
80 void x86_set_symtab( x86_symbol *symtab, int num_symbols )
83 x86_num_symbols = num_symbols;
86 static const char *x86_find_symbol( bfd_vma memaddr, struct disassemble_info *info )
89 for( i=0; i<x86_num_symbols; i++ ) {
90 if( x86_symtab[i].ptr == (void *)(uintptr_t)memaddr ) {
91 return x86_symtab[i].name;
97 static void x86_print_address( bfd_vma memaddr, struct disassemble_info *info )
99 const char *sym = x86_find_symbol(memaddr, info);
100 info->fprintf_func( info->stream, "%08X", memaddr );
102 info->fprintf_func( info->stream, " <%s>", sym );
106 void x86_print_symbolic_operand( char *buf, int hex, unsigned int disp )
108 const char *sym = x86_find_symbol(disp, NULL);
110 snprintf( buf, 50, "<%s>", sym );
112 sprintf( buf, "0x%x", disp );
114 sprintf( buf, "%d", (int)disp );
118 uintptr_t x86_disasm_instruction( uintptr_t pc, char *buf, int len, char *opcode )
122 x86_disasm_info.stream = buf;
124 count = print_insn_i386_att( pc, &x86_disasm_info );
126 unsigned char tmp[count];
127 x86_disasm_info.read_memory_func( pc, tmp, count, &x86_disasm_info );
128 for( i=0; i<count; i++ ) {
129 sprintf( opcode, "%02X ", ((unsigned int)tmp[i])&0xFF );
137 int x86_disasm_output( void *data, const char *format, ... )
139 char *p = (char *)data;
143 va_start( ap, format );
144 n = vsprintf( p, format, ap );
.