3 # Ensure that strace can detach from stopped processes.
5 # Copyright (c) 2013-2015 Dmitry V. Levin <ldv@altlinux.org>
8 # Redistribution and use in source and binary forms, with or without
9 # modification, are permitted provided that the following conditions
11 # 1. Redistributions of source code must retain the above copyright
12 # notice, this list of conditions and the following disclaimer.
13 # 2. Redistributions in binary form must reproduce the above copyright
14 # notice, this list of conditions and the following disclaimer in the
15 # documentation and/or other materials provided with the distribution.
16 # 3. The name of the author may not be used to endorse or promote products
17 # derived from this software without specific prior written permission.
19 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 . "${srcdir=.}/init.sh"
32 run_prog_skip_if_failed \
37 $STRACE -d -enone / > /dev/null 2> "$LOG"
38 if grep -x "[^:]*strace: PTRACE_SEIZE doesn't work" "$LOG" > /dev/null; then
39 skip_ "PTRACE_SEIZE doesn't work"
45 ./set_ptracer_any sleep $((2*$TIMEOUT_DURATION)) > "$LOG" &
47 while ! [ -s "$LOG" ]; do
48 kill -0 $! 2> /dev/null ||
49 fail_ 'set_ptracer_any sleep failed'
54 kill -STOP $tracee_pid
60 kill -CONT $tracee_pid
61 wait $tracee_pid 2> /dev/null
66 $STRACE -p $tracee_pid 2> "$LOG" &
68 while ! grep -F "Process $tracee_pid attached" "$LOG" > /dev/null; do
69 kill -0 $! 2> /dev/null || {
71 dump_log_and_fail_with "$STRACE -p failed to attach"
76 while ! grep -F -e '--- stopped by ' "$LOG" > /dev/null; do
77 kill -0 $! 2> /dev/null || {
79 dump_log_and_fail_with "$STRACE -p missed stop notifications"
87 grep -F "Process $tracee_pid detached" "$LOG" > /dev/null || {
89 dump_log_and_fail_with "$STRACE -p failed to detach"
92 if [ -f /proc/self/status ]; then
94 test -d /proc/$tracee_pid || {
96 dump_log_and_fail_with 'tracee died after detach'
98 grep '^State:.*T (stopped)' < /proc/$tracee_pid/status > /dev/null || {
99 grep '^State:' < /proc/$tracee_pid/status
101 dump_log_and_fail_with 'tracee is not group-stopped after detach'