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Re: [PATCH v2 1/2] linux-user/s390x: signal with SIGFPE on compare-and-t


From: jonathan.albrecht
Subject: Re: [PATCH v2 1/2] linux-user/s390x: signal with SIGFPE on compare-and-trap
Date: Fri, 09 Jul 2021 10:48:28 -0400
User-agent: Roundcube Webmail/1.1.12

On 2021-07-09 10:37 am, Richard Henderson wrote:
On 7/9/21 7:23 AM, jonathan.albrecht wrote:
As a general comment, I think a single switch over DXC would be
cleaner for both kernel and qemu.  It seems like giving different
si_code for e.g. "0x40 IEEE division by zero" and "0x43 Simulated IEEE
division by zero" is actively incorrect.

I went over the DXC section and I see what you mean about the si_codes
for simulated IEEE exceptions. I'll plan on handling those the same as
non-simulated IEEE if no objections.

Only if you plan on submitting a similar patch for the kernel.
Otherwise, qemu would not match the kernel abi.

Thanks for clarifying. In that case, I'll handle simulated IEEE the same
as the current kernel.



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