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-rw-r--r--opcodes/dis-buf.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/opcodes/dis-buf.c b/opcodes/dis-buf.c
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+/* Disassemble from a buffer, for GNU.
+ Copyright (C) 1993, 1994, 1998 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;
+ int length;
+ struct disassemble_info *info;
+{
+ if (memaddr < info->buffer_vma
+ || memaddr + length > info->buffer_vma + info->buffer_length)
+ /* Out of bounds. Use EIO because GDB uses it. */
+ return EIO;
+ memcpy (myaddr, info->buffer + (memaddr - info->buffer_vma), 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;
+{
+ (*info->fprintf_func) (info->stream, "0x%x", addr);
+}
+
+/* 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 (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)) <= len)
+ strcat (buf, tmpBuf);
+ else
+ strncat (buf, tmpBuf, (len - strlen(buf)));
+ }
+ return;
+}
+
+/* Just return the given address. */
+
+int
+generic_symbol_at_address (addr, info)
+ bfd_vma addr;
+ struct disassemble_info * info;
+{
+ return 1;
+}