1 /* Disassemble from a buffer, for GNU.
2 Copyright 1993, 1994, 1996, 1997, 1998, 1999, 2000
3 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19 /* #include "sysdep.h" */
22 /* #include "opintl.h" */
24 /* Get LENGTH bytes from info's buffer, at target address memaddr.
25 Transfer them to myaddr. */
28 buffer_read_memory (memaddr, myaddr, length, info)
32 struct disassemble_info *info;
34 unsigned int opb = info->octets_per_byte;
35 unsigned int end_addr_offset = length / opb;
36 unsigned int max_addr_offset = info->buffer_length / opb;
37 unsigned int octets = (memaddr - info->buffer_vma) * opb;
39 if (memaddr < info->buffer_vma
40 || memaddr - info->buffer_vma + end_addr_offset > max_addr_offset)
41 /* Out of bounds. Use EIO because GDB uses it. */
43 memcpy (myaddr, info->buffer + octets, length);
49 /* Print an error message. We can assume that this is in response to
50 an error return from buffer_read_memory. */
52 perror_memory (status, memaddr, info)
55 struct disassemble_info *info;
59 info->fprintf_func (info->stream, _("Unknown error %d\n"), status);
61 /* Actually, address between memaddr and memaddr + len was
63 info->fprintf_func (info->stream,
64 _("Address 0x%x is out of bounds.\n"), memaddr);
67 /* This could be in a separate file, to save miniscule amounts of space
68 in statically linked executables. */
70 /* Just print the address is hex. This is included for completeness even
71 though both GDB and objdump provide their own (to print symbolic
75 generic_print_address (addr, info)
77 struct disassemble_info *info;
81 sprintf_vma (buf, addr);
82 (*info->fprintf_func) (info->stream, "0x%s", buf);
86 /* Just concatenate the address as hex. This is included for
87 completeness even though both GDB and objdump provide their own (to
88 print symbolic addresses). */
90 void generic_strcat_address PARAMS ((bfd_vma, char *, int));
93 generic_strcat_address (addr, buf, len)
98 if (buf != (char *)NULL && len > 0)
102 sprintf_vma (tmpBuf, addr);
103 if ((strlen (buf) + strlen (tmpBuf)) <= (unsigned int) len)
104 strcat (buf, tmpBuf);
106 strncat (buf, tmpBuf, (len - strlen(buf)));
112 /* Just return true. */
115 generic_symbol_at_address (addr, info)
116 bfd_vma addr ATTRIBUTE_UNUSED;
117 struct disassemble_info *info ATTRIBUTE_UNUSED;
122 /* Just return TRUE. */
126 generic_symbol_is_valid (asymbol * sym ATTRIBUTE_UNUSED,
127 struct disassemble_info *info ATTRIBUTE_UNUSED)