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

["jonathan.albrecht" <jonathan.albrecht@linux.vnet.ibm.com>]

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.