projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| aff22f45 | 1 | /* Disassemble from a buffer, for GNU. |
| 5c9b5f58 | 2 | Copyright (C) 1993, 1994 Free Software Foundation, Inc. |
| aff22f45 JK |
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., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| 17 | ||
| 18 | #include "dis-asm.h" | |
| 5c9b5f58 | 19 | #include <string.h> |
| aff22f45 JK |
20 | #include <errno.h> |
| 21 | ||
| 22 | /* Get LENGTH bytes from info's buffer, at target address memaddr. | |
| 23 | Transfer them to myaddr. */ | |
| 24 | int | |
| 25 | buffer_read_memory (memaddr, myaddr, length, info) | |
| 26 | bfd_vma memaddr; | |
| 27 | bfd_byte *myaddr; | |
| 28 | int length; | |
| 29 | struct disassemble_info *info; | |
| 30 | { | |
| 31 | if (memaddr < info->buffer_vma | |
| 32 | || memaddr + length > info->buffer_vma + info->buffer_length) | |
| 33 | /* Out of bounds. Use EIO because GDB uses it. */ | |
| 34 | return EIO; | |
| 35 | memcpy (myaddr, info->buffer + (memaddr - info->buffer_vma), length); | |
| 36 | return 0; | |
| 37 | } | |
| 38 | ||
| 39 | /* Print an error message. We can assume that this is in response to | |
| 40 | an error return from buffer_read_memory. */ | |
| 41 | void | |
| 42 | perror_memory (status, memaddr, info) | |
| 43 | int status; | |
| 44 | bfd_vma memaddr; | |
| 45 | struct disassemble_info *info; | |
| 46 | { | |
| 47 | if (status != EIO) | |
| 48 | /* Can't happen. */ | |
| 49 | (*info->fprintf_func) (info->stream, "Unknown error %d\n", status); | |
| 50 | else | |
| 51 | /* Actually, address between memaddr and memaddr + len was | |
| 52 | out of bounds. */ | |
| 53 | (*info->fprintf_func) (info->stream, | |
| 54 | "Address 0x%x is out of bounds.\n", memaddr); | |
| 55 | } | |
| 5c9b5f58 PS |
56 | |
| 57 | /* This could be in a separate file, to save miniscule amounts of space | |
| 58 | in statically linked executables. */ | |
| 59 | ||
| 60 | /* Just print the address is hex. This is included for completeness even | |
| 61 | though both GDB and objdump provide their own (to print symbolic | |
| 62 | addresses). */ | |
| 63 | ||
| 64 | void | |
| 65 | generic_print_address (addr, info) | |
| 66 | bfd_vma addr; | |
| 67 | struct disassemble_info *info; | |
| 68 | { | |
| 69 | (*info->fprintf_func) (info->stream, "0x%x", addr); | |
| 70 | } |