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Re: [RFA] fix for intel disassembly, truncated BFD_VMA


H.J. Lu wrote:
On Wed, Feb 9, 2011 at 10:36 AM, Michael Snyder <msnyder@vmware.com> wrote:
This expression needed parentheses.  Without them, it was truncating the
target address of jumps and calls from BFD_VMA to 32-bits.

Disassembly at high addresses is vastly improved.


2011-02-09 Michael Snyder <msnyder@vmware.com>


       * i386-dis.c (OP_J): Parenthesize expression to prevent
       truncated addresses.
       (print_insn): Fix indentation off-by-one.

Index: i386-dis.c
===================================================================
RCS file: /cvs/src/src/opcodes/i386-dis.c,v
retrieving revision 1.257
diff -u -p -u -p -r1.257 i386-dis.c
--- i386-dis.c  18 Jan 2011 17:08:13 -0000      1.257
+++ i386-dis.c  9 Feb 2011 18:28:02 -0000
@@ -1,6 +1,6 @@
 /* Print i386 instructions for GDB, the GNU debugger.
   Copyright 1988, 1989, 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
   Free Software Foundation, Inc.

   This file is part of the GNU opcodes library.
@@ -11702,9 +11702,9 @@ print_insn (bfd_vma pc, disassemble_info
      modrm.rm = *codep & 7;
    }

-   need_vex = 0;
-   need_vex_reg = 0;
-   vex_w_done = 0;
+  need_vex = 0;
+  need_vex_reg = 0;
+  vex_w_done = 0;

  if (dp->name == NULL && dp->op[0].bytemode == FLOATCODE)
    {
@@ -13817,7 +13817,7 @@ OP_J (int bytemode, int sizeflag)
      oappend (INTERNAL_DISASSEMBLER_ERROR);
      return;
    }
-  disp = ((start_pc + codep - start_codep + disp) & mask) | segment;
+  disp = ((start_pc + (codep - start_codep) + disp) & mask) | segment;
  set_op (disp, 0);
  print_operand_value (scratchbuf, 1, disp);
  oappend (scratchbuf);



OK.

Thanks, committed.



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