1 #!/bin/sh 2 # 3 # This script processes strace -ff -tt output. It merges the contents of all 4 # STRACE_LOG.PID files and sorts them, printing result on the standard output. 5 # 6 # Copyright (c) 2012-2018 The strace developers. 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 show_usage() 31 { 32 cat <<__EOF__ 33 Usage: ${0##*/} STRACE_LOG 34 35 Finds all STRACE_LOG.PID files, adds PID prefix to every line, 36 then combines and sorts them, and prints result to standard output. 37 38 It is assumed that STRACE_LOGs were produced by strace with -tt[t] 39 option which prints timestamps (otherwise sorting won't do any good). 40 __EOF__ 41 } 42 43 dd='\([0-9][0-9]\)' 44 ds='\([0-9][0-9]*\)' 45 46 if [ $# -ne 1 ]; then 47 show_usage >&2 48 exit 1 49 elif [ "$1" = '--help' ]; then 50 show_usage 51 exit 0 52 fi 53 54 logfile=$1 55 56 for file in "$logfile".*; do 57 [ -f "$file" ] || continue 58 suffix=${file#"$logfile".} 59 [ "$suffix" -gt 0 ] 2> /dev/null || 60 continue 61 pid=$(printf "%-5s" $suffix) 62 # Some strace logs have last line which is not '\n' terminated, 63 # so add extra newline to every file. 64 # grep -v '^$' removes empty lines which may result. 65 sed -n "s/^\($dd:\)\?\($dd:\)\?\($ds\.\)\?$ds /\2\4\6\7 $pid \0/p" < "$file" 66 echo 67 done \ 68 | sort -s -n -k1,1 | sed -n 's/^[0-9][0-9]* //p' 69 70 rc=$? 71 [ $rc -eq 1 ] && 72 echo >&2 "${0##*/}: $logfile: strace output not found" 73 exit $rc 74
