147 lines
4.5 KiB
Groff
147 lines
4.5 KiB
Groff
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.\" Copyright (c) 2017 The strace developers.
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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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.\" 3. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" Required option.
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.de OR
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. ie \\n(.$-1 \
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. RI "\fB\\$1\fP" "\ \\$2"
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. el \
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. BR "\\$1"
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..
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.\"
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.TH STRACE-LOG-MERGE 1 "2018-07-07" "strace 4.25"
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.\"
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.SH NAME
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strace-log-merge \- merge strace \-ff \-tt output
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.\"
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.SH SYNOPSIS
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.SY strace\-log\-merge
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.IR STRACE_LOG
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.YS
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.SY strace\-log\-merge
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.OR \-\-help
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.YS
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.\"
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.SH DESCRIPTION
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.B strace\-log\-merge
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merges the output of
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.B strace \-ff \-tt[t]
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command, prepending PID to each line and sorting the result using time stamp as
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a key.
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.\"
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.SH OPTIONS
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.\"
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.TP
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.B \-\-help
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Show program usage and exit.
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.TP
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.I STRACE_LOG
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Output file name prefix of files produced by a
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.B strace -ff -tt[t]
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command.
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.SH EXIT STATUS
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.TP
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.B 0
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Success
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.TP
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.B Non-zero
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Error occurred: either no argument specified (in that case a usage is printed),
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or something went wrong during the processing of
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.IR STRACE_LOG ".*"
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files.
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.\"
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.SH USAGE EXAMPLE
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.sp
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.nf
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.ft CW
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$ strace -o sleepy -ff -tt -e trace=execve,nanosleep \\
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sh -c 'sleep 0.1 & sleep 0.2 & sleep 0.3'
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$ strace-log-merge sleepy | fold -w 72 -s
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13475 21:13:52.040837 execve("/bin/sh", ["sh", "-c", "sleep 0.1 & sleep
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0.2 & sleep 0."...], 0x7ffde54b2450 /* 33 vars */) = 0
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13478 21:13:52.044050 execve("/bin/sleep", ["sleep", "0.3"],
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0x5631be4f87a8 /* 33 vars */) = 0
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13476 21:13:52.044269 execve("/bin/sleep", ["sleep", "0.1"],
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0x5631be4f87a8 /* 33 vars */) = 0
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13477 21:13:52.044389 execve("/bin/sleep", ["sleep", "0.2"],
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0x5631be4f87a8 /* 33 vars */) = 0
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13478 21:13:52.046207 nanosleep({tv_sec=0, tv_nsec=300000000}, NULL) = 0
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13476 21:13:52.046303 nanosleep({tv_sec=0, tv_nsec=100000000}, NULL) = 0
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13477 21:13:52.046318 nanosleep({tv_sec=0, tv_nsec=200000000}, NULL) = 0
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13476 21:13:52.146852 +++ exited with 0 +++
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13475 21:13:52.146942 --- SIGCHLD {si_signo=SIGCHLD,
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si_code=CLD_EXITED, si_pid=13476, si_uid=1000, si_status=0, si_utime=0,
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si_stime=0} ---
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13477 21:13:52.247782 +++ exited with 0 +++
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13475 21:13:52.247885 --- SIGCHLD {si_signo=SIGCHLD,
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si_code=CLD_EXITED, si_pid=13477, si_uid=1000, si_status=0, si_utime=0,
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si_stime=0} ---
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13478 21:13:52.347680 +++ exited with 0 +++
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13475 21:13:52.347786 --- SIGCHLD {si_signo=SIGCHLD,
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si_code=CLD_EXITED, si_pid=13478, si_uid=1000, si_status=0, si_utime=0,
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si_stime=0} ---
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13475 21:13:52.348069 +++ exited with 0 +++
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.ft R
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.fi
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.sp
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.\"
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.SH NOTES
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.I strace-log-merge
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does not work well with
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.B strace
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logs generated by
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.B strace -tt
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invocation that pass midnight, as those lack the information required
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for the proper sorting.
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Employing the
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.B -ttt
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option in the respective
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.B strace
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invocation should solve the problem.
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.\"
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.SH BUGS
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.I strace-log-merge
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does not perform any checks whether the files specified are in the correct
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format and implies that only files from a single
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.I strace
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session match
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.IR STRACE_LOG ".*"
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glob pattern.
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.\"
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.SH HISTORY
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The initial version of
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.I strace-log-merge
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was written by Denys Vlasenko in 2012.
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.\"
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.SH REPORTING BUGS
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Problems with
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.B strace-log-merge
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should be reported to the
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.B strace
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mailing list at <strace\-devel@lists.strace.io>.
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.\"
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.SH "SEE ALSO"
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.BR strace (1)
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