freebsd test suite failures

[rme]

The freebsd ports have a few test failures:

32 bit:

6 out of 21863 total tests failed: 
   CL-TEST::FUNCALL.ERROR.1, CL-TEST::FUNCALL.ERROR.2, CL-TEST::FUNCALL.ERROR.3, 
   CL-TEST::EXP.ERROR.6, CL-TEST::EXP.ERROR.7, CL-TEST::LISTEN.7.

see: ​http://setf.clozure.com:8010/builders/freebsdx8632/builds/1/steps/shell_3/logs/stdio

64-bit:

1 out of 21869 total tests failed: 
   CL-TEST::LISTEN.7.

see: ​http://setf.clozure.com:8010/builders/freebsdx8664/builds/1/steps/shell_3/logs/stdio

[gb]

I've seen the EXP and LISTEN failures, but haven't seen and can't reproduce the first two.

I wonder if this is some low-level exception handling difference between different FreeBSD versions, or whether a VM behaves differently than real hardware does.

[rme]

Test case so I don't forget:

(defun foo () (funcall 'progn 12))

[rme]

(In [14428]) In %get-xcf-byte, xcf.relative-pc (which is a fixnum) can be negative, and %int-to-ptr doesn't like that. Go through some gyrations to account for that. See ticket:775.

[rme]

r14437 fixes the cl:listen failure.

r14444 and r14445 fix the cl:exp errors.