100 lines
3.2 KiB
Bash
Executable File
100 lines
3.2 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2013 Peter Holm
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# Call syscall4.sh with syscall number as argument.
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# Only run the last ~16 syscalls, if no argument is specified.
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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. ../default.cfg
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syscall=`grep SYS_MAXSYSCALL /usr/include/sys/syscall.h | awk '{print $NF}'`
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syscall=$((syscall - 1))
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esyscall=0
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last=/tmp/syscall5.last
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log=/tmp/syscall5.log
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while getopts ae:nrs:t:u flag; do
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case "$flag" in
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a) all=1 ;;
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e) esyscall="$OPTARG" ;;
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n) export noswap=1 ;;
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r) [ -h $last ] &&
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syscall=`ls -l $last | awk '{print $NF}'`
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syscall=$((syscall - 1))
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;;
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s) syscall="$OPTARG" ;;
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t) sleeptime="$OPTARG"
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export sleeptime=$((sleeptime / 10)) ;; # used in syscall4.sh
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u) unnamed=1 ;;
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*) echo "Usage $0 [-a] [-n] [-r] [-s number] [-e number] "\
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"[-t seconds] [-u]"
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return 1 ;;
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esac
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done
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[ $syscall -gt $esyscall ] ||
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{ echo "$syscall must be greater than $esyscall"; exit 1; }
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# syscalls with known issues:
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broken="
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swapcontext
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pdfork
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rfork
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pselect
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"
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rm -f $log
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n=$syscall
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start=`date '+%s'`
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while [ $n -gt 0 ]; do
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ps -lUnobody | grep syscall4 | awk '{print $2}' | xargs kill
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ln -fs $n $last
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name=`grep -w "$n$" /usr/include/sys/syscall.h | awk '{print $2}' |
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sed 's/SYS_//'`
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[ -z "$name" ] && name="unknown"
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rm -f /tmp/syscall5.name
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[ -x ../tools/exclude_syscall.sh ] &&
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../tools/exclude_syscall.sh $n &&
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{ n=$((n - 1)); continue; }
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[ "$name" = "unknown" ] && [ -f /tmp/syscall5.name ] &&
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name=`cat /tmp/syscall5.name`
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[ -z "$name" -a -n "$unnamed" ] &&
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{ n=$((n - 1)); continue; }
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echo "`date '+%T'` syscall $n ($name)"
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echo "`date '+%T'` syscall $n ($name)" >> $log
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printf "`date '+%T'` syscall $n ($name)\r\n" > /dev/console
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sync; sleep 1
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echo "$broken" | grep -qw "$name" ||
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./syscall4.sh $n || break
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[ $n -le $esyscall ] && break
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n=$((n - 1))
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[ -z "$all" -a `date '+%s'` -gt $((start + 1800)) ] && break
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done
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rm -f $log $last
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