1#!/bin/sh
2#
3# Check mmap/mmap2, madvise, mlockall, mprotect, mremap, msync, and munmap
4# syscalls decoding.
5#
6# Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
7# All rights reserved.
8#
9# Redistribution and use in source and binary forms, with or without
10# modification, are permitted provided that the following conditions
11# are met:
12# 1. Redistributions of source code must retain the above copyright
13#    notice, this list of conditions and the following disclaimer.
14# 2. Redistributions in binary form must reproduce the above copyright
15#    notice, this list of conditions and the following disclaimer in the
16#    documentation and/or other materials provided with the distribution.
17# 3. The name of the author may not be used to endorse or promote products
18#    derived from this software without specific prior written permission.
19#
20# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31. "${srcdir=.}/init.sh"
32
33check_prog grep
34check_prog sed
35run_prog > /dev/null
36
37syscall=
38for n in mmap mmap2; do
39	$STRACE -e$n -h > /dev/null && syscall=$syscall,$n
40done
41run_strace -e$syscall $args > /dev/null
42
43if grep '^mmap(NULL, 0, PROT_NONE,' < "$LOG" > /dev/null; then
44	mmap=mmap
45elif grep '^mmap2(NULL, 0, PROT_NONE,' < "$LOG" > /dev/null; then
46	mmap=mmap2
47else
48	dump_log_and_fail_with "mmap/mmap2 not found in $STRACE $args output"
49fi
50
51syscall=$mmap,madvise,mlockall,mprotect,mremap,msync,munmap
52
53run_prog "./$NAME" $mmap > /dev/null
54run_strace -a20 -e$syscall $args > "$EXP"
55sed -n "/^$mmap(NULL, 0, PROT_NONE,/,\$p" < "$LOG" > "$OUT"
56match_diff "$OUT" "$EXP"
57
58rm -f "$EXP" "$OUT"
59