Elliott Hughes | bb0c2d5 | 2014-01-07 17:34:14 -0800 | [diff] [blame] | 1 | #!/bin/sh |
Elliott Hughes | b755614 | 2018-02-20 17:03:16 -0800 | [diff] [blame] | 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 | # |
Elliott Hughes | 28e98bc | 2018-06-14 16:59:04 -0700 | [diff] [blame] | 6 | # Copyright (c) 2012-2018 The strace developers. |
Elliott Hughes | b755614 | 2018-02-20 17:03:16 -0800 | [diff] [blame] | 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. |
Elliott Hughes | bb0c2d5 | 2014-01-07 17:34:14 -0800 | [diff] [blame] | 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 | |
Elliott Hughes | b755614 | 2018-02-20 17:03:16 -0800 | [diff] [blame] | 43 | dd='\([0-9][0-9]\)' |
| 44 | ds='\([0-9][0-9]*\)' |
| 45 | |
Elliott Hughes | bb0c2d5 | 2014-01-07 17:34:14 -0800 | [diff] [blame] | 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. |
Elliott Hughes | b755614 | 2018-02-20 17:03:16 -0800 | [diff] [blame] | 65 | sed -n "s/^\($dd:\)\?\($dd:\)\?\($ds\.\)\?$ds /\2\4\6\7 $pid \0/p" < "$file" |
Elliott Hughes | bb0c2d5 | 2014-01-07 17:34:14 -0800 | [diff] [blame] | 66 | echo |
| 67 | done \ |
Elliott Hughes | b755614 | 2018-02-20 17:03:16 -0800 | [diff] [blame] | 68 | | sort -s -n -k1,1 | sed -n 's/^[0-9][0-9]* //p' |
Elliott Hughes | bb0c2d5 | 2014-01-07 17:34:14 -0800 | [diff] [blame] | 69 | |
| 70 | rc=$? |
| 71 | [ $rc -eq 1 ] && |
| 72 | echo >&2 "${0##*/}: $logfile: strace output not found" |
| 73 | exit $rc |