From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Lu, Hongjiu" <hongjiu.lu@intel.com>
To: "Mark Kettenis" <kettenis@chello.nl>
Cc: <gdb-patches@sources.redhat.com>
Subject: RE: HACK: Fix the backstrace for Linux/x86-64.
Date: Fri, 28 May 2004 22:14:00 -0000
Message-id: <CBDB88BFD06F7F408399DBCF8776B3DC01D248E6@scsmsx403.amr.corp.intel.com>
X-SW-Source: 2004-05/msg00774.html

>        xorq %rbp, %rbp
>
>The ABI doesn't suggest that at all (at least I can't find it) and
>usage of %rbp as a frame pointer is optional, and certainly not the
>default.  This was probably just copied from the i386 code, and should
>be removed.  Then your "hack" doesn't work anymore.
>

FYI, the x86-64 ABI is based on the i386 ABI, which does suggest set
frame pointer to zero. I believe glibc is correct in doing so. Again if
you have a different patch, I will give it a try.


H.J.