1#!/bin/sh
2#
3# Check that -f -p attaches to threads properly.
4#
5# Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
6# All rights reserved.
7#
8# Redistribution and use in source and binary forms, with or without
9# modification, are permitted provided that the following conditions
10# are met:
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.
18#
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.
29
30. "${srcdir=.}/init.sh"
31
32# strace -f -p is implemented using /proc/$pid/task/
33[ -d /proc/self/task/ ] ||
34	framework_skip_ '/proc/self/task/ is not available'
35run_prog_skip_if_failed \
36	kill -0 $$
37run_prog ./attach-f-p-cmd > /dev/null
38
39rm -f "$OUT"
40./set_ptracer_any sh -c "exec ./attach-f-p >> $OUT" > /dev/null &
41tracee_pid=$!
42
43while ! [ -s "$OUT" ]; do
44	kill -0 $tracee_pid 2> /dev/null ||
45		fail_ 'set_ptracer_any sh failed'
46done
47
48run_strace -a32 -f -echdir -p $tracee_pid ./attach-f-p-cmd > "$OUT"
49match_diff "$LOG" "$OUT"
50rm -f "$OUT"
51