Dmitry V. Levin
6c8ef051f7
* linux/alpha/get_scno.c: Use error_msg. * linux/arm/get_scno.c: Likewise. * linux/mips/get_scno.c: Likewise. * linux/sh/get_scno.c: Likewise. * linux/x86_64/get_scno.c: Likewise. * exit.c (sys_exit): Likewise. * pathtrace.c (pathtrace_select, pathtrace_match): Likewise. * strace.c (alloctcb, droptcb, detach, startup_attach, test_ptrace_seize, init, cleanup, print_debug_info, maybe_allocate_tcb, startup_tcb, trace): Likewise. * syscall.c (update_personality, trace_syscall_exiting, get_scno): Likewise. * unwind.c (DPRINTF): Likewise. * tests/bexecve.test: Update patterns. * tests/detach-stopped.test: Likewise.
82 lines
1.5 KiB
Bash
Executable File
82 lines
1.5 KiB
Bash
Executable File
#!/bin/sh
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# Ensure that strace can detach from stopped processes.
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. "${srcdir=.}/init.sh"
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run_prog_skip_if_failed \
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kill -0 $$
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check_prog sleep
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$STRACE -d -enone / > /dev/null 2> "$LOG"
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if grep -x "[^:]*strace: PTRACE_SEIZE doesn't work" "$LOG" > /dev/null; then
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skip_ "PTRACE_SEIZE doesn't work"
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fi
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set -e
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rm -f "$LOG"
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./set_ptracer_any sleep $((2*$TIMEOUT_DURATION)) > "$LOG" &
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while ! [ -s "$LOG" ]; do
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kill -0 $! 2> /dev/null ||
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fail_ 'set_ptracer_any sleep failed'
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$SLEEP_A_BIT
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done
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tracee_pid=$!
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kill -STOP $tracee_pid
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cleanup()
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{
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set +e
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kill $tracee_pid
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kill -CONT $tracee_pid
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wait $tracee_pid 2> /dev/null
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return 0
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}
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rm -f "$LOG"
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$STRACE -p $tracee_pid 2> "$LOG" &
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while ! grep -F "Process $tracee_pid attached" "$LOG" > /dev/null; do
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kill -0 $! 2> /dev/null || {
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cleanup
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dump_log_and_fail_with "$STRACE -p failed to attach"
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}
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$SLEEP_A_BIT
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done
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while ! grep -F -e '--- stopped by ' "$LOG" > /dev/null; do
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kill -0 $! 2> /dev/null || {
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cleanup
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dump_log_and_fail_with "$STRACE -p missed stop notifications"
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}
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$SLEEP_A_BIT
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done
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kill -INT $!
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wait $!
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grep -F "Process $tracee_pid detached" "$LOG" > /dev/null || {
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cleanup
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dump_log_and_fail_with "$STRACE -p failed to detach"
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}
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if [ -f /proc/self/status ]; then
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$SLEEP_A_BIT
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test -d /proc/$tracee_pid || {
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cleanup
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dump_log_and_fail_with 'tracee died after detach'
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}
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grep '^State:.*T (stopped)' < /proc/$tracee_pid/status > /dev/null || {
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grep '^State:' < /proc/$tracee_pid/status
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cleanup
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dump_log_and_fail_with 'tracee is not group-stopped after detach'
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}
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fi
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cleanup
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exit 0
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