From aff22f452f0c5688b6512c35d7e24d702e7e1631 Mon Sep 17 00:00:00 2001 From: Jim Kingdon Date: Wed, 31 Mar 1993 21:45:59 +0000 Subject: [PATCH] New file dis-buf.c; part of read_memory_func changes just checked it --- opcodes/dis-buf.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 opcodes/dis-buf.c diff --git a/opcodes/dis-buf.c b/opcodes/dis-buf.c new file mode 100644 index 00000000000..279aa243ba1 --- /dev/null +++ b/opcodes/dis-buf.c @@ -0,0 +1,54 @@ +/* Disassemble from a buffer, for GNU. + Copyright (C) 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include "dis-asm.h" +#include + +/* 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); +} -- 2.30.2