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#!/bin/sh
tmpfiles=""
trap 'rm -fr $tmpfiles' 1 2 3 15
tmpfiles="t-c-stack2.tmp"
# Sanitize exit status within a subshell, since some shells fail to
# redirect stderr on their message about death due to signal.
(${CHECKER} ./test-c-stack${EXEEXT} 1; exit $?) 2> t-c-stack2.tmp
case $? in
77) if grep 'stack overflow' t-c-stack2.tmp >/dev/null ; then
if test -z "$LIBSIGSEGV"; then
echo 'cannot tell stack overflow from crash; consider installing libsigsegv' >&2
exit 77
else
echo 'cannot tell stack overflow from crash, in spite of libsigsegv' >&2
exit 1
fi
else
cat t-c-stack2.tmp >&2
exit 77
fi
;;
1)
# Dereferencing NULL exits the program with status 1,
# so this test doesn't check the c-stack testing harness like it should.
# https://lists.gnu.org/r/grep-devel/2020-09/msg00034.html
cat t-c-stack2.tmp >&2
echo 'skipping test (perhaps gcc -fsanitize=undefined is in use?)'
exit 77;;
0) (exit 1); exit 1 ;;
esac
if grep 'program error' t-c-stack2.tmp >/dev/null ; then
:
else
(exit 1); exit 1
fi
rm -fr $tmpfiles
exit 0
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