| To: | David Daney <ddaney@avtrex.com> |
|---|---|
| Subject: | Re: Cannot unwind through MIPS signal frames with ICACHE_REFILLS_WORKAROUND_WAR |
| From: | Franck Bui-Huu <vagabon.xyz@gmail.com> |
| Date: | Sat, 17 Nov 2007 09:38:29 +0100 |
| Cc: | Ralf Baechle <ralf@linux-mips.org>, linux-mips@linux-mips.org |
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David Daney wrote:
> I am liking the idea of putting the trampoline code in the (as of yet
> non-existent vdso). This eliminates the need to flush the icache, but
> maintains the ability of user code to unwind through signal frames.
>
> Putting a .eh_frame section in the vdso would be even better as that
> would eliminate the need for libgcc to do code reading and let the
> kernel use any means desired to return from signal handlers.
>
You're very welcome to improve the ld script for VDSO generation, I
sent a couple days ago. I would be happy to integrate your
improvements in my patch for the future version.
thanks,
Franck
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