Elliott Hughes | 5dec78d | 2014-02-26 15:56:23 -0800 | [diff] [blame] | 1 | #!/bin/sh |
| 2 | |
| 3 | # Ensure that strace can detach from sleeping processes. |
| 4 | |
| 5 | . "${srcdir=.}/init.sh" |
| 6 | |
| 7 | check_prog sleep |
| 8 | check_prog grep |
| 9 | |
| 10 | set -e |
| 11 | |
| 12 | rm -f $LOG |
| 13 | ./set_ptracer_any sleep $((2*$TIMEOUT_DURATION)) > $LOG & |
| 14 | |
| 15 | while ! [ -s $LOG ]; do |
| 16 | kill -0 $! 2> /dev/null || |
| 17 | fail_ 'set_ptracer_any sleep failed' |
| 18 | $SLEEP_A_BIT |
| 19 | done |
| 20 | |
| 21 | tracee_pid=$! |
| 22 | |
| 23 | cleanup() |
| 24 | { |
| 25 | set +e |
| 26 | kill $tracee_pid |
| 27 | wait $tracee_pid 2> /dev/null |
| 28 | } |
| 29 | |
| 30 | rm -f $LOG |
| 31 | $STRACE -p $tracee_pid 2> $LOG & |
| 32 | |
| 33 | while ! grep -F "Process $tracee_pid attached" $LOG > /dev/null; do |
| 34 | kill -0 $! 2> /dev/null || |
| 35 | { cat $LOG; cleanup; fail_ 'strace -p does not work'; } |
| 36 | $SLEEP_A_BIT |
| 37 | done |
| 38 | |
| 39 | kill -INT $! |
| 40 | wait $! |
| 41 | |
| 42 | grep -F "Process $tracee_pid detached" $LOG > /dev/null || |
| 43 | { cat $LOG; cleanup; fail_ 'strace -p failed to detach'; } |
| 44 | |
| 45 | if [ -f /proc/self/status ]; then |
| 46 | $SLEEP_A_BIT |
| 47 | test -d /proc/$tracee_pid || |
| 48 | { cat $LOG; cleanup; fail_ 'tracee died after detach'; } |
| 49 | grep '^State:.*S (sleeping)' < /proc/$tracee_pid/status > /dev/null || { |
| 50 | cat $LOG |
| 51 | grep '^State:' < /proc/$tracee_pid/status |
| 52 | cleanup |
| 53 | fail_ 'tracee is not sleeping after detach' |
| 54 | } |
| 55 | fi |
| 56 | |
| 57 | cleanup |
| 58 | exit 0 |