[Bug 294881] test failures with FORTIFY_SOURCE=2

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294881

            Bug ID: 294881
           Summary: test failures with FORTIFY_SOURCE=2
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: tests
          Assignee: testing@FreeBSD.org
          Reporter: markj@FreeBSD.org

I built a FreeBSD image with FORTIFY_SOURCE=2 and ran the regression test
suite.  There are some test failures:

lib/libc/stdio/gets_s_test:n_gt_rmax  ->  broken: Empty test result or no new
line  [0.345s]
lib/libc/stdio/gets_s_test:n_gt_rmax_handler  ->  broken: Empty test result or
no new line  [0.059s]
lib/libc/sys/getgroups_test:getgroups_err  ->  broken: Empty test result or no
new line  [0.065s]
sys/audit/network:recvmsg_failure  ->  broken: Empty test result or no new line
 [0.008s]

All of them are tests which make sure that various libc functions return an
error when given invalid parameters, but SSP checks turn that into a fatal
abort.

Is that a bug in the FORTIFY_SOURCE integration?  Should we build tests with
FORTIFY_SOURCE enabled at all?

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