Re: [RFC PATCH v1 14/40] metag: Ptrace

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On 31 October 2012 17:13, James Hogan <james.hogan@xxxxxxxxxx> wrote:
> We use the non-generic interface at the moment (exposing the TBX context
> structures to userland), pending conversion to the generic ptrace
> interface.
>

Hi James,

Comment 1, as you already mentioned in the blurb, is to use the
generic ptrace interface... a lot of your ptrace functions aren't need
anymore.
Comment 2, is to avoid exporting the struct pt_regs to userspace.  GDB
should be using regsets for accessing the current context for new
architectures and doesn't need to know about the pt_regs layout
anymore.  Not exporting pt_regs gains you the flexibility to optimize
context saving in the future if you figure out a better (e.g. cache
friendlier) way of saving your registers at exception time.

/Jonas
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