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[Bug binutils/10924] Bug in objdump when disassembling raw armv4t binari


From: chris at seberino dot org
Subject: [Bug binutils/10924] Bug in objdump when disassembling raw armv4t binaries
Date: 2 Dec 2009 19:20:09 -0000

------- Additional Comments From chris at seberino dot org  2009-12-02 19:20 
-------
Subject: Re:  Bug in objdump when disassembling raw
        armv4t binaries

On Wed, Dec 02, 2009 at 11:22:15AM -0000, nickc at redhat dot com wrote:
>
> ------- Additional Comments From nickc at redhat dot com  2009-12-02 11:22 
> -------
> Hi Chris,
>
> > I tried to apply the patch to binutils-2.20.51 and patch said it looked like
> > the patch was applied already so I did NOT apply it.
>
> Good - I have already checked the patch in.  (I was confident that it was 
> correct).

Sorry.  That one was my fault.  Indeed objdump now flags loads and stores as
UNPREDICTABLE that should be.  It appears that it also flags some as
UNPREDICTABLE that are not.  See these 3...

% ./objdump -b binary -m armv4t -D aaa23

test:     file format binary


Disassembly of section .data:

00000000 <.data>:
   0:    004f00b0       strheq  r0, [pc], #0    ; <UNPREDICTABLE>
   4:    005f00b0       ldrheq  r0, [pc], #0    ; <UNPREDICTABLE>

Why are those UNPREDICTABLE?

cs


-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=10924

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