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# Copyright (c) 2015-2018 The strace developers.
8# All rights reserved.
9#
10# Redistribution and use in source and binary forms, with or without
11# modification, are permitted provided that the following conditions
12# are met:
13# 1. Redistributions of source code must retain the above copyright
14#    notice, this list of conditions and the following disclaimer.
15# 2. Redistributions in binary form must reproduce the above copyright
16#    notice, this list of conditions and the following disclaimer in the
17#    documentation and/or other materials provided with the distribution.
18# 3. The name of the author may not be used to endorse or promote products
19#    derived from this software without specific prior written permission.
20#
21# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31
32. "${srcdir=.}/init.sh"
33
34check_prog grep
35check_prog sed
36run_prog > /dev/null
37
38xlat_opt=""
39[ "$#" -gt 0 ] && xlat_opt="-X$1"
40align=20
41[ "$#" -gt 1 ] && align="$2"
42
43syscall=
44for n in mmap mmap2; do
45	$STRACE -e$n -h > /dev/null && syscall=$syscall,$n
46done
47run_strace -e$syscall $args > /dev/null
48
49if grep '^mmap(NULL, 0, \(0 /* PROT_NONE */\|0\|PROT_NONE\),' < "$LOG" > /dev/null; then
50	mmap=mmap
51elif grep '^mmap2(NULL, 0, \(0 \/\* PROT_NONE \*\/\|0\|PROT_NONE\),' < "$LOG" > /dev/null; then
52	mmap=mmap2
53else
54	dump_log_and_fail_with "mmap/mmap2 not found in $STRACE $args output"
55fi
56
57syscall=$mmap,madvise,mlockall,mprotect,mremap,msync,munmap
58
59run_prog "../$NAME" $mmap > /dev/null
60run_strace -a$align -e$syscall $xlat_opt $args > "$EXP"
61sed -n "/^$mmap(NULL, 0, \(0 \/\* PROT_NONE \*\/\|0\|PROT_NONE\),/,\$p" < "$LOG" > "$OUT"
62match_diff "$OUT" "$EXP"
63