Dmitry V. Levin | 78460f8 | 2013-06-19 10:22:18 +0000 | [diff] [blame] | 1 | #!/bin/sh |
| 2 | |
| 3 | # Ensure that strace can detach from running processes. |
| 4 | |
| 5 | . "${srcdir=.}/init.sh" |
| 6 | |
Dmitry V. Levin | 8f54664 | 2015-03-17 17:07:57 +0000 | [diff] [blame] | 7 | run_prog_skip_if_failed \ |
| 8 | kill -0 $$ |
Dmitry V. Levin | 74697bd | 2015-01-14 08:08:56 +0000 | [diff] [blame] | 9 | |
Dmitry V. Levin | 3ec5c04 | 2014-09-23 01:51:05 +0000 | [diff] [blame] | 10 | check_prog sleep |
Dmitry V. Levin | 78460f8 | 2013-06-19 10:22:18 +0000 | [diff] [blame] | 11 | |
| 12 | set -e |
| 13 | |
| 14 | ./set_ptracer_any sh -c "echo > $LOG; while :; do :; done" > /dev/null & |
| 15 | |
Dmitry V. Levin | 8f54664 | 2015-03-17 17:07:57 +0000 | [diff] [blame] | 16 | while ! [ -s "$LOG" ]; do |
Dmitry V. Levin | 78460f8 | 2013-06-19 10:22:18 +0000 | [diff] [blame] | 17 | kill -0 $! 2> /dev/null || |
| 18 | fail_ 'set_ptracer_any sh failed' |
| 19 | $SLEEP_A_BIT |
| 20 | done |
| 21 | |
| 22 | tracee_pid=$! |
| 23 | |
| 24 | cleanup() |
| 25 | { |
| 26 | set +e |
| 27 | kill $tracee_pid |
| 28 | wait $tracee_pid 2> /dev/null |
Mike Frysinger | 2b5bfeb | 2014-08-11 01:31:23 -0400 | [diff] [blame] | 29 | return 0 |
Dmitry V. Levin | 78460f8 | 2013-06-19 10:22:18 +0000 | [diff] [blame] | 30 | } |
| 31 | |
Dmitry V. Levin | 8f54664 | 2015-03-17 17:07:57 +0000 | [diff] [blame] | 32 | rm -f "$LOG" |
| 33 | $STRACE -p $tracee_pid 2> "$LOG" & |
Dmitry V. Levin | 78460f8 | 2013-06-19 10:22:18 +0000 | [diff] [blame] | 34 | |
Dmitry V. Levin | 8f54664 | 2015-03-17 17:07:57 +0000 | [diff] [blame] | 35 | while ! grep -F "Process $tracee_pid attached" "$LOG" > /dev/null; do |
| 36 | kill -0 $! 2> /dev/null || { |
| 37 | cleanup |
| 38 | dump_log_and_fail_with "$STRACE -p failed to attach" |
| 39 | } |
Dmitry V. Levin | 78460f8 | 2013-06-19 10:22:18 +0000 | [diff] [blame] | 40 | $SLEEP_A_BIT |
| 41 | done |
| 42 | |
| 43 | kill -INT $! |
| 44 | wait $! |
| 45 | |
Dmitry V. Levin | 8f54664 | 2015-03-17 17:07:57 +0000 | [diff] [blame] | 46 | grep -F "Process $tracee_pid detached" "$LOG" > /dev/null || { |
| 47 | cleanup |
| 48 | dump_log_and_fail_with "$STRACE -p failed to detach" |
| 49 | } |
Dmitry V. Levin | 78460f8 | 2013-06-19 10:22:18 +0000 | [diff] [blame] | 50 | |
Dmitry V. Levin | 0d7c365 | 2013-06-19 14:57:05 +0000 | [diff] [blame] | 51 | if [ -f /proc/self/status ]; then |
| 52 | $SLEEP_A_BIT |
Dmitry V. Levin | 8f54664 | 2015-03-17 17:07:57 +0000 | [diff] [blame] | 53 | test -d /proc/$tracee_pid || { |
| 54 | cleanup |
| 55 | dump_log_and_fail_with 'tracee died after detach' |
| 56 | } |
Dmitry V. Levin | 0d7c365 | 2013-06-19 14:57:05 +0000 | [diff] [blame] | 57 | grep '^State:.*R (running)' < /proc/$tracee_pid/status > /dev/null || { |
Dmitry V. Levin | 0d7c365 | 2013-06-19 14:57:05 +0000 | [diff] [blame] | 58 | grep '^State:' < /proc/$tracee_pid/status |
| 59 | cleanup |
Dmitry V. Levin | 8f54664 | 2015-03-17 17:07:57 +0000 | [diff] [blame] | 60 | dump_log_and_fail_with 'tracee is not running after detach' |
Denys Vlasenko | a815185 | 2013-06-19 16:37:24 +0200 | [diff] [blame] | 61 | } |
Dmitry V. Levin | 0d7c365 | 2013-06-19 14:57:05 +0000 | [diff] [blame] | 62 | fi |
Denys Vlasenko | a815185 | 2013-06-19 16:37:24 +0200 | [diff] [blame] | 63 | |
Dmitry V. Levin | 78460f8 | 2013-06-19 10:22:18 +0000 | [diff] [blame] | 64 | cleanup |
| 65 | exit 0 |