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  46                      <a id="a000394"></a>
  47                      <div class="entry" id="entry-394">
  48                         <h3 class="entry-header">complogs</h3>
  49                         <div class="entry-content">
  50                            <div class="entry-body">
  51                               <ul>
  52   <li>Downloaded a Perl compatible Diff module from <a href="http://perl.plover.com/diff">Perl Diff</a> and adapted it for use with complogs</li>
  53
  54   <li>Created complogs to compare two log files and print out their differences in terms of warnings</li>
  55 </ul>
  56                            </div>
  57                            <div id="more" class="entry-more">
  58                               <h3>complogs</h3>
  59
  60 <p>I have developed a script to compare two logfile and print out the differences in terms of warnings. First of all this script leans on a prior script, <i>check</i>, (which should be in /int/bin and /int/bin should be in your path. BTW: That's where complogs is also).</p>
  61
  62 <p>Secondly it attempts to be semi intelligent WRT comparing warnings. In order to do this I had downloaded a <a href="http://perl.plover.com/diff/">Perl Diff module</a> and adapted it for use with complogs. Normally one would install a Perl module into the system library. But I cannot tell where complog will be run Side note: At a previous company we compiled a version of Perl and placed it on a network accessible area like /int. We also altered it to look at a network path for Perl modules. This meant that one need only install a new Perl module once in the network area and the networked Perl would automatically see it. Lacking that I've installed this Diff.pm into /int/lib.</p>
  63
  64 <p>This Diff.pm module allows me to diff two arrays and provide a function for determining equality. Thus I have the following function:</p>
  65
  66 <div class="code"><pre>
  67     sub hash {
  68       # Return the line possibly removing any line number. For example, a
  69       # line such as the following:
  70       #
  71       # syscall_switch.c:14: warning: initialization from incompatible pointer type
  72       #
  73       # has a line number (14) in it. A subsequent compile of
  74       # syscall_switch.c may generate the same warning but the line number
  75       # may change (e.g. 16). It's the same warning so we will remove the
  76       # string ":\d*:" from the output. This is a bit kludgy.
  77       my $line = shift;
  78
  79       return $line =~ s/(\w*\.[ch]):\d*:( warning:)/$1$2/;
  80     } # hash
  81 </pre></div>
  82
  83 <p>This helps cut down on warnings that have only changed line numbers.</p>
  84
  85 <p>I've tested this with a few install.log's that I've found. For example:</p>
  86
  87 <div class="code"><pre>
  88     saturn:complogs 20050718.install.log 20050722.install.log
  89     ----------------------------------------------------------------------
  90     Warnings removed:
  91     ----------------------------------------------------------------------
  92     1439    bsp_pcibus.c:783: warning: unused variable `bus'
  93     1440    bsp_pcibus.c:784: warning: unused variable `dev'
  94     1441    bsp_pcibus.c:785: warning: unused variable `func'
  95     1442    bsp_pcibus.c:150: warning: 'pci_bridge_init' defined but not used
  96     1443    bsp_reboot.c:168: warning: implicit declaration of function `hw_local_reset'
  97     1444    bsp_reboot.c:171: warning: implicit declaration of function `stopcpu'
  98     ----------------------------------------------------------------------
  99     TOTAL:  6
 100     ----------------------------------------------------------------------
 101     Warnings added:
 102     ----------------------------------------------------------------------
 103     1881    /usr/los178/3.0.0/ppc_dev/sys/include/kernel/kernel.h:94:1: warning: this is the location of the previous definition
 104     3378    regex.h:39:1: warning: "RE_DUP_MAX" redefined
 105     3379    /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
 106     3380    regex.h:39:1: warning: "RE_DUP_MAX" redefined
 107     3381    /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
 108     3382    regex.h:39:1: warning: "RE_DUP_MAX" redefined
 109     3383    /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
 110     3384    regex.h:39:1: warning: "RE_DUP_MAX" redefined
 111     3385    /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
 112     3386    regex.h:39:1: warning: "RE_DUP_MAX" redefined
 113     3387    /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
 114     3388    regex.h:39:1: warning: "RE_DUP_MAX" redefined
 115     3389    /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
 116     3390    regex.h:39:1: warning: "RE_DUP_MAX" redefined
 117     3391    /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
 118     3392    regex.h:39:1: warning: "RE_DUP_MAX" redefined
 119     3393    /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
 120     3394    regex.h:39:1: warning: "RE_DUP_MAX" redefined
 121     3395    /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
 122     3396    regex.h:39:1: warning: "RE_DUP_MAX" redefined
 123     3397    /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
 124     3398    regex.h:39:1: warning: "RE_DUP_MAX" redefined
 125     3399    /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
 126     3400    regex.h:39:1: warning: "RE_DUP_MAX" redefined
 127     3401    /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
 128     3403    regex.h:39:1: warning: "RE_DUP_MAX" redefined
 129     3404    /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
 130     3412    regex.c:4825: warning: passing arg 2 of `bcmp_translate' discards qualifiers from pointer target type
 131     3415    ../tar-1.11.2/getdate.y:807: warning: static declaration of 'getdate_yylex' follows non-static declaration
 132     3416    bison.simple:332: warning: previous implicit declaration of 'getdate_yylex' was here
 133     3419    /usr/los178/3.0.0/ppc_dev/usr/include/wait.h:58:2: warning: #warning Using <sys/wait.h> instead of <wait.h>
 134     3421    pipesize.h:8:1: warning: "PIPESIZE" redefined
 135     3422    /usr/los178/3.0.0/ppc_dev/usr/include/conf.h:76:1: warning: this is the location of the previous definition
 136     3424    display.c:1155: warning: comparison is always true due to limited range of data type
 137     3425    malloc.c:521: warning: conflicting types for built-in function 'malloc'
 138     3426    malloc.c:798: warning: conflicting types for built-in function 'calloc'
 139     3427    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 140     3428    ../ex/ex_cd.c:75: warning: assignment from incompatible pointer type
 141     3429    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 142     3430    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 143     3431    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 144     3432    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 145     3433    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 146     3434    ../vi/getc.c:63: warning: passing arg 3 of `db_eget' from incompatible pointer type
 147     3435    ../vi/getc.c:193: warning: passing arg 4 of `db_get' from incompatible pointer type
 148     3436    ../common/key.c:159: warning: comparison is always true due to limited range of data type
 149     3437    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 150     3438    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 151     3439    ../common/recover.c:368: warning: assignment from incompatible pointer type
 152     3440    ../vi/v_txt.c:2184: warning: comparison of distinct pointer types lacks a cast
 153     3441    ../vi/v_txt.c:2202: warning: comparison of distinct pointer types lacks a cast
 154     3442    ../vi/v_ulcase.c:130: warning: passing arg 4 of `db_get' from incompatible pointer type
 155     3443    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 156     3444    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 157     3445    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 158     3446    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 159     3447    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 160     3448    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 161     3449    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 162     3450    /usr/los178/3.0.0/ppc_dev/usr/include/sys/uio.h:21:2: warning: #warning Using <uio.h> instead of <sys/uio.h>
 163     3451    /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using <param.h> instead of <sys/param.h>
 164     3452    /usr/los178/3.0.0/ppc_dev/usr/include/cdefs.h:21:2: warning: #warning Using <sys/cdefs.h> instead of <cdefs.h>
 165     3453    /usr/los178/3.0.0/ppc_dev/usr/include/cdefs.h:21:2: warning: #warning Using <sys/cdefs.h> instead of <cdefs.h>
 166     ----------------------------------------------------------------------
 167     TOTAL:  63
 168 </pre></div>
 169                            </div>
 170                         </div>
 171                         <p class="entry-footer">
 172                            <span class="post-footers">Posted by  on July 27, 2005  6:00 PM</span> <span class="separator">|</span> <a class="permalink" href="http://defaria.com/blogs/Status/archives/000394.html">Permalink</a>
 173                         </p>
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