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