Fix SIGFPE handling.  The code doing an ADVANCE after calling trapsignal(), which made is skip the first instruction of the signal trampoline in certain cases.  That in turn truly hosed the stack. ok miod@, jason@
Fix SIGFPE handling.  The code doing an ADVANCE after calling trapsignal(),
which made is skip the first instruction of the signal trampoline in certain
cases.  That in turn truly hosed the stack.
ok miod@, jason@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars