1#!/bin/sh
2#
3# Check decoding of threads when a non-leader thread invokes execve.
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# Check that PTRACE_EVENT_EXEC support in kernel is good enough.
33# The kernel before commit v3.1-rc1~308^2~7 reported 0 instead of old pid.
34require_min_kernel_version_or_skip 3.1
35
36check_prog diff
37run_prog > /dev/null
38
39set -- -a21 -f -esignal=none -e trace=execve,exit,nanosleep,rt_sigsuspend $args
40
41# Due to probabilistic nature of the test, try it several times.
42i=0
43while [ $i -le 9 ]; do
44	run_strace "$@" > "$EXP"
45	diff -- "$EXP" "$LOG" || continue
46	rm -f "$EXP"
47	exit 0
48done
49
50fail_ "$STRACE $* output mismatch"
51