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Date: Tue, 03 Jul 2007 21:54:00 -0000
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From: Mark Kettenis <mark.kettenis@xs4all.nl>
To: jimb@codesourcery.com
CC: Moqtadir_Mohammed@reyrey.com, gdb@sourceware.org
In-reply-to: <m3y7hx2mms.fsf@codesourcery.com> (message from Jim Blandy on 	Tue, 03 Jul 2007 14:38:51 -0700)
Subject: Re: Can this be happening?
References: <D8FBABA1EF6F2E4DBCC88903F60691F30A4401F9@houxchsvr.ucscorp.ucs.pvt> <m3y7hx2mms.fsf@codesourcery.com>
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> From: Jim Blandy <jimb@codesourcery.com>
> Date: Tue, 03 Jul 2007 14:38:51 -0700
> 
> "Mohammed, Moqtadir" <Moqtadir_Mohammed@reyrey.com> writes:
> > I was trying to look at a core dump of a program, and gdb displays the following result for
> > #info registers
> >
> > eax            0xa0     160
> > ecx            0x2      2
> > edx            0xa      10
> > ebx            0xa7e3de9c       -1478238564
> > esp            0xa6babddc       0xa6babddc
> > ebp            0xa6babe00       0xa6babe00
> > esi            0xa7ef9d9a       -1477468774
> > edi            0x838f44c        137950284
> > eip            0xa7d85cec       0xa7d85cec <mempcpy+28>
> > eflags         0x50203  [ CF IF RF AC ]
> > cs             0x73     115
> > ss             0x7b     123
> > ds             0x7b     123
> > es             0xb010007b       -1341128581
> > fs             0x0      0
> > gs             0x33     51
> >
> > Platform: IA32. (elf)
> >
> > My question is, how is the register 'es' being reported as a 32
> > bit value.  I may be completely naive asking this question, but I
> > have been trying to google for anything related to it, but haven't
> > found an answer. Is 'es' not supposed to be only 16bit.
> 
> Well, actually, GDB thinks they're all 32 bits long:

Yes, they are, mostly to keep the remote register packet compatible.
They should really be changed into a 16bit type I guess.

Mark