Trap handler changes to support s390x #2871
Merged
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On s390x, SIGILL and SIGFPE are delivered with the PSW address
pointing after the faulting instruction, while SIGSEGV and
SIGBUS are delivered with the PSW address pointing to the
faulting instruction. In order to support this, the common
code trap handler has to distinguish between those cases.
Also, enable SIGFPE on s390x (just like on x86).