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Re: [PATCH 0/2] Floating-point OE/UE exception bug


From: Richard Henderson
Subject: Re: [PATCH 0/2] Floating-point OE/UE exception bug
Date: Fri, 5 Aug 2022 10:06:36 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0

On 8/5/22 07:15, Lucas Mateus Castro(alqotel) wrote:
Currently there's no test in this patch series as there's no way to
disable MSR.FE0 and MSR.FE1 in linux user, so any overflow/underflow
exception with OE/UE set causes a trapping exception.

You could check the value in the fp register in the signal handler. The exception is supposed to occur after the register writeback.


r~



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