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252b5132 RH |
1 | /* Disassemble from a buffer, for GNU. |
2 | Copyright (C) 1993, 1994, 1998 Free Software Foundation, Inc. | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
6 | the Free Software Foundation; either version 2 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; if not, write to the Free Software | |
16 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
17 | ||
18 | #include "sysdep.h" | |
19 | #include "dis-asm.h" | |
20 | #include <errno.h> | |
21 | #include "opintl.h" | |
22 | ||
23 | /* Get LENGTH bytes from info's buffer, at target address memaddr. | |
24 | Transfer them to myaddr. */ | |
25 | int | |
26 | buffer_read_memory (memaddr, myaddr, length, info) | |
27 | bfd_vma memaddr; | |
28 | bfd_byte *myaddr; | |
29 | int length; | |
30 | struct disassemble_info *info; | |
31 | { | |
32 | if (memaddr < info->buffer_vma | |
33 | || memaddr + length > info->buffer_vma + info->buffer_length) | |
34 | /* Out of bounds. Use EIO because GDB uses it. */ | |
35 | return EIO; | |
36 | memcpy (myaddr, info->buffer + (memaddr - info->buffer_vma), length); | |
37 | return 0; | |
38 | } | |
39 | ||
40 | /* Print an error message. We can assume that this is in response to | |
41 | an error return from buffer_read_memory. */ | |
42 | void | |
43 | perror_memory (status, memaddr, info) | |
44 | int status; | |
45 | bfd_vma memaddr; | |
46 | struct disassemble_info *info; | |
47 | { | |
48 | if (status != EIO) | |
49 | /* Can't happen. */ | |
50 | info->fprintf_func (info->stream, _("Unknown error %d\n"), status); | |
51 | else | |
52 | /* Actually, address between memaddr and memaddr + len was | |
53 | out of bounds. */ | |
54 | info->fprintf_func (info->stream, | |
55 | _("Address 0x%x is out of bounds.\n"), memaddr); | |
56 | } | |
57 | ||
58 | /* This could be in a separate file, to save miniscule amounts of space | |
59 | in statically linked executables. */ | |
60 | ||
61 | /* Just print the address is hex. This is included for completeness even | |
62 | though both GDB and objdump provide their own (to print symbolic | |
63 | addresses). */ | |
64 | ||
65 | void | |
66 | generic_print_address (addr, info) | |
67 | bfd_vma addr; | |
68 | struct disassemble_info *info; | |
69 | { | |
70 | (*info->fprintf_func) (info->stream, "0x%x", addr); | |
71 | } | |
72 | ||
73 | /* Just concatenate the address as hex. This is included for | |
74 | completeness even though both GDB and objdump provide their own (to | |
75 | print symbolic addresses). */ | |
76 | ||
77 | void | |
78 | generic_strcat_address (addr, buf, len) | |
79 | bfd_vma addr; | |
80 | char *buf; | |
81 | int len; | |
82 | { | |
83 | if (buf != (char *)NULL && len > 0) | |
84 | { | |
85 | char tmpBuf[30]; | |
86 | ||
87 | sprintf_vma (tmpBuf, addr); | |
88 | if ((strlen (buf) + strlen (tmpBuf)) <= len) | |
89 | strcat (buf, tmpBuf); | |
90 | else | |
91 | strncat (buf, tmpBuf, (len - strlen(buf))); | |
92 | } | |
93 | return; | |
94 | } | |
95 | ||
96 | /* Just return the given address. */ | |
97 | ||
98 | int | |
99 | generic_symbol_at_address (addr, info) | |
100 | bfd_vma addr; | |
101 | struct disassemble_info * info; | |
102 | { | |
103 | return 1; | |
104 | } |