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Date: Mon, 03 Jun 2002 21:37:43 -0700 (PDT)
Message-Id: <20020603.213743.68155795.davem@redhat.com>
To: dmj+@andrew.cmu.edu
Cc: ppadala@cise.ufl.edu, linux-kernel@vger.kernel.org
Subject: Re: No PTRACE_READDATA for archs other than SPARC?
From: "David S. Miller" <davem@redhat.com>
In-Reply-To: <20020529234951.GA3797@branoic.them.org>
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   From: Daniel Jacobowitz <dmj+@andrew.cmu.edu>
   Date: Wed, 29 May 2002 19:49:51 -0400
   
   Not really, we should just get EINVAL (ENOSYS?) back when we try to use
   it, right?
   
I answered this last week, you will get -EIO which turns out to also a
valid return from PTRACE_READDATA.  So a backwards compatible way to
test for existence of PTRACE_READDATA is going to be difficult.