Re: [Libunwind-devel] Explicitly exporting CFA

[David Mosberger-Tang]

I don't have any objection to adding a pseudo-register for DWARF.
Arun, what do you think of this?

  --david

On 12/3/07, Mark Wielaard <address@hidden> wrote:
> Hi,
>
> For frysk it is beneficial to get at the Canonical Frame Address from a
> cursor (to check during stepping whether we are still in the same
> function invocation, opposed to in some recursive invocation). But there
> is no architecture independent way to get at it. Since the cfa is kept
> in the dwarf cursor would it make sense to expose it explicitly as a
> pseudo (read-only) register UNW_REG_CFA you can fetch through
> unw_get_reg? (Currently we unwind one step and take the SP and see if it
> changed).
>
> Cheers,
>
> Mark
>
>
>
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