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Re: [arm] Use EABI unwind library
On Thu, Sep 23, 2004 at 10:22:52PM +0100, Paul Brook wrote:
> However the trickier problem is targetm.eh_fnspec_ttable_indirect. The eabi
> can't cope with the extra level of indirection used in the function exception
> specification lists.
Oh well. I guess go with what you have.
> However that's totally different, and has different ideas about how exception
> regions are arranged.
I suspect that you *cannot* make the arm exception region scheme work
without inhibiting the optimizers. In particular, anything that
rearranges the CFG in any way might violate region nestings. Either
that or you generate a completely artificial region nesting that
exactly mirrors the action lists that we currently build.
Neither sounds like much fun; I agree with ignoring it for now.
Of more generality, we could probably look into splitting up and
hook-izing how we construct this eh data. Split out sjlj from dwarf2;
handle arm eabi separately; support windows SEH format. But that,
of course, is a lot of work.
r~