lib/54379: __sdivsi3() does not raise SIGFPE

[martin%NetBSD.org@localhost]

>Number:         54379
>Category:       lib
>Synopsis:       __sdivsi3() does not raise SIGFPE
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jul 16 10:45:00 +0000 2019
>Originator:     Martin Husemann
>Release:        NetBSD 8.99.50
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD last-of-the-heroes.aprisoft.de 8.99.50 NetBSD 8.99.50 (GENERIC) #3: Wed Jul 10 12:06:52 CEST 2019 martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/src/sys/arch/landisk/compile/GENERIC landisk
Architecture: sh3el
Machine: landisk
>Description:

When called to divide by zero, __sdivsi3() does not raise SIGFPE.
This breaks quite a few tests in our automatic test runs on machines w/o
FPU.

>How-To-Repeat:

cd /usr/tests/lib/libc/gen && ./t_siginfo sigfpe_int

>Fix:
n/a