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#!/bin/sh -efu
#
# Check -DD option.
#
# Copyright (c) 2019-2020 Dmitry V. Levin <ldv@strace.io>
# All rights reserved.
#
# SPDX-License-Identifier: GPL-2.0-or-later
. "${srcdir=.}/init.sh"
[ "$STRACE" = "$STRACE_EXE" ] ||
skip_ 'Not applicable: $STRACE != $STRACE_EXE'
run_prog_skip_if_failed \
kill -0 $$
status_file=/proc/self/status
get_tracer_pid()
{
sed '/^TracerPid:[[:space:]]*/!d;s///' "$@"
}
[ "$(get_tracer_pid "$status_file")" -ge 0 ] ||
framework_skip_ "$status_file is not available"
run_prog ../sleep 0
sleep_duration="$(($TIMEOUT_DURATION/2))"
test_D()
{
local tracee_pid tracer_pid rc sig=15
set -- $STRACE --output="$LOG" --columns=39 \
--interruptible=anywhere --trace=nanosleep "$@" -- \
../sleep "$sleep_duration"
> "$LOG"
../setpgrp-exec "$@" &
tracee_pid=$!
while tracer_pid="$(get_tracer_pid "/proc/$tracee_pid/status")"; do
[ "$tracer_pid" = 0 ] ||
break
$SLEEP_A_BIT
done
$SLEEP_A_BIT
kill -$sig -$tracee_pid
wait $tracee_pid && rc=0 || rc=$?
[ "$rc" -eq $((128 + $sig)) ] ||
dump_log_and_fail_with \
"$* failed with unexpected exit status $rc"
while kill -0 "$tracer_pid" 2> /dev/null; do
$SLEEP_A_BIT
done
match_diff "$LOG" "$EXP"
}
printf 'nanosleep({tv_sec=%s, tv_nsec=0}, ' "$sleep_duration" > "$EXP"
test_D -D
uid="${UID:-`id -u`}"
cat > "$EXP" <<__EOF__
nanosleep({tv_sec=$sleep_duration, tv_nsec=0}, NULL) = ? ERESTART_RESTARTBLOCK (Interrupted by signal)
--- SIGTERM {si_signo=SIGTERM, si_code=SI_USER, si_pid=$$, si_uid=$uid} ---
+++ killed by SIGTERM +++
__EOF__
test_D -DD
test_D -DDD
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