| /* Disassemble from a buffer, for GNU. |
| Copyright 1993, 1994, 1996, 1997, 1998, 1999, 2000 |
| Free Software Foundation, Inc. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| |
| #include "sysdep.h" |
| #include "dis-asm.h" |
| #include <errno.h> |
| #include "opintl.h" |
| |
| /* Get LENGTH bytes from info's buffer, at target address memaddr. |
| Transfer them to myaddr. */ |
| int |
| buffer_read_memory (memaddr, myaddr, length, info) |
| bfd_vma memaddr; |
| bfd_byte *myaddr; |
| unsigned int length; |
| struct disassemble_info *info; |
| { |
| unsigned int opb = info->octets_per_byte; |
| unsigned int end_addr_offset = length / opb; |
| unsigned int max_addr_offset = info->buffer_length / opb; |
| unsigned int octets = (memaddr - info->buffer_vma) * opb; |
| |
| if (memaddr < info->buffer_vma |
| || memaddr - info->buffer_vma + end_addr_offset > max_addr_offset) |
| /* Out of bounds. Use EIO because GDB uses it. */ |
| return EIO; |
| memcpy (myaddr, info->buffer + octets, length); |
| |
| return 0; |
| } |
| |
| /* Print an error message. We can assume that this is in response to |
| an error return from buffer_read_memory. */ |
| void |
| perror_memory (status, memaddr, info) |
| int status; |
| bfd_vma memaddr; |
| struct disassemble_info *info; |
| { |
| if (status != EIO) |
| /* Can't happen. */ |
| info->fprintf_func (info->stream, _("Unknown error %d\n"), status); |
| else |
| /* Actually, address between memaddr and memaddr + len was |
| out of bounds. */ |
| info->fprintf_func (info->stream, |
| _("Address 0x%x is out of bounds.\n"), memaddr); |
| } |
| |
| /* This could be in a separate file, to save miniscule amounts of space |
| in statically linked executables. */ |
| |
| /* Just print the address is hex. This is included for completeness even |
| though both GDB and objdump provide their own (to print symbolic |
| addresses). */ |
| |
| void |
| generic_print_address (addr, info) |
| bfd_vma addr; |
| struct disassemble_info *info; |
| { |
| char buf[30]; |
| |
| sprintf_vma (buf, addr); |
| (*info->fprintf_func) (info->stream, "0x%s", buf); |
| } |
| |
| #if 0 |
| /* Just concatenate the address as hex. This is included for |
| completeness even though both GDB and objdump provide their own (to |
| print symbolic addresses). */ |
| |
| void generic_strcat_address PARAMS ((bfd_vma, char *, int)); |
| |
| void |
| generic_strcat_address (addr, buf, len) |
| bfd_vma addr; |
| char *buf; |
| int len; |
| { |
| if (buf != (char *)NULL && len > 0) |
| { |
| char tmpBuf[30]; |
| |
| sprintf_vma (tmpBuf, addr); |
| if ((strlen (buf) + strlen (tmpBuf)) <= (unsigned int) len) |
| strcat (buf, tmpBuf); |
| else |
| strncat (buf, tmpBuf, (len - strlen(buf))); |
| } |
| return; |
| } |
| #endif |
| |
| /* Just return true. */ |
| |
| int |
| generic_symbol_at_address (addr, info) |
| bfd_vma addr ATTRIBUTE_UNUSED; |
| struct disassemble_info *info ATTRIBUTE_UNUSED; |
| { |
| return 1; |
| } |
| |
| /* Just return TRUE. */ |
| |
| bfd_boolean |
| generic_symbol_is_valid (asymbol * sym ATTRIBUTE_UNUSED, |
| struct disassemble_info *info ATTRIBUTE_UNUSED) |
| { |
| return TRUE; |
| } |