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|
#!/bin/sh
# Ensure that strace can detach from sleeping processes.
. "${srcdir=.}/init.sh"
check_prog sleep
check_prog grep
set -e
rm -f $LOG
./set_ptracer_any sleep $((2*$TIMEOUT_DURATION)) > $LOG &
while ! [ -s $LOG ]; do
kill -0 $! 2> /dev/null ||
fail_ 'set_ptracer_any sleep failed'
$SLEEP_A_BIT
done
tracee_pid=$!
cleanup()
{
set +e
kill $tracee_pid
wait $tracee_pid 2> /dev/null
}
rm -f $LOG
$STRACE -p $tracee_pid 2> $LOG &
while ! grep -F "Process $tracee_pid attached" $LOG > /dev/null; do
kill -0 $! 2> /dev/null ||
{ cat $LOG; cleanup; fail_ 'strace -p does not work'; }
$SLEEP_A_BIT
done
kill -INT $!
wait $!
grep -F "Process $tracee_pid detached" $LOG > /dev/null ||
{ cat $LOG; cleanup; fail_ 'strace -p failed to detach'; }
if [ -f /proc/self/status ]; then
$SLEEP_A_BIT
test -d /proc/$tracee_pid ||
{ cat $LOG; cleanup; fail_ 'tracee died after detach'; }
grep '^State:.*S (sleeping)' < /proc/$tracee_pid/status > /dev/null || {
cat $LOG
grep '^State:' < /proc/$tracee_pid/status
cleanup
fail_ 'tracee is not sleeping after detach'
}
fi
cleanup
exit 0
|
