mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-11-25 21:19:54 +00:00
119 lines
3.3 KiB
C
119 lines
3.3 KiB
C
/* 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 the given address. */
|
|
|
|
int
|
|
generic_symbol_at_address (addr, info)
|
|
bfd_vma addr ATTRIBUTE_UNUSED;
|
|
struct disassemble_info *info ATTRIBUTE_UNUSED;
|
|
{
|
|
return 1;
|
|
}
|