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Re: [Qemu-devel] [PATCH 4/4] tcg-hppa: Compute is_write in cpu_signal_ha


From: Stuart Brady
Subject: Re: [Qemu-devel] [PATCH 4/4] tcg-hppa: Compute is_write in cpu_signal_handler.
Date: Wed, 17 Mar 2010 02:23:57 +0000
User-agent: Mutt/1.5.20 (2009-06-14)

On Wed, Mar 17, 2010 at 02:10:43AM +0000, Stuart Brady wrote:
> Argh.  It just seems mind bogglingly silly that is_write doesn't seem to
> be included in the siginfo on archs where doing so would make sense...

> It's at least something I'd have hoped libc could take care of in the case
> where the hardware doesn't indicate whether the fault was due to a read
> or a write...

Oh, actually, I guess you'd just test the equivalent of
'(info->si_isr >> 33) & 1' or 'DSISR_sig(uc) & 0x00800000)' on such
an arch, but it still seems a shame that this isn't done for us on
archs without that ability...

Cheers,
-- 
Stuart Brady




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