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Re: [PATCH v3 18/21] linux-user/aarch64: Signal SEGV_MTEAERR for async t
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From: |
Peter Maydell |
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Subject: |
Re: [PATCH v3 18/21] linux-user/aarch64: Signal SEGV_MTEAERR for async tag check error |
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Date: |
Thu, 28 Jan 2021 10:44:13 +0000 |
On Thu, 28 Jan 2021 at 08:49, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> On 1/22/21 3:59 AM, Peter Maydell wrote:
> > Does it work if we just always queue the SEGV on exit from cpu_exec()
> > and let the signal handling machinery prioritize if we also pend
> > some other signal because this was an EXCP_UDEF or whatever?
> > It would be neater if we could keep the fault-check outside the
> > switch (trapnr) somehow.
>
> I would think so. I'll try that.
In particular it seems worth testing whether 'singlestep in gdbstub
over an insn that takes an async MTE fault' has reasonable user-facing
behaviour.
thanks
-- PMM