- Downloaded a Perl compatible Diff module from Perl Diff and adapted it for use with complogs
- Created complogs to compare two log files and print out their differences in terms of warnings
complogs
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, check, (which should be in /int/bin and /int/bin should be in your path. BTW: That's where complogs is also).
Secondly it attempts to be semi intelligent WRT comparing warnings. In order to do this I had downloaded a Perl Diff module 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.
This Diff.pm module allows me to diff two arrays and provide a function for determining equality. Thus I have the following function:
sub hash {
# Return the line possibly removing any line number. For example, a
# line such as the following:
#
# syscall_switch.c:14: warning: initialization from incompatible pointer type
#
# has a line number (14) in it. A subsequent compile of
# syscall_switch.c may generate the same warning but the line number
# may change (e.g. 16). It's the same warning so we will remove the
# string ":\d*:" from the output. This is a bit kludgy.
my $line = shift;
return $line =~ s/(\w*\.[ch]):\d*:( warning:)/$1$2/;
} # hash
This helps cut down on warnings that have only changed line numbers.
I've tested this with a few install.log's that I've found. For example:
saturn:complogs 20050718.install.log 20050722.install.log
----------------------------------------------------------------------
Warnings removed:
----------------------------------------------------------------------
1439 bsp_pcibus.c:783: warning: unused variable `bus'
1440 bsp_pcibus.c:784: warning: unused variable `dev'
1441 bsp_pcibus.c:785: warning: unused variable `func'
1442 bsp_pcibus.c:150: warning: 'pci_bridge_init' defined but not used
1443 bsp_reboot.c:168: warning: implicit declaration of function `hw_local_reset'
1444 bsp_reboot.c:171: warning: implicit declaration of function `stopcpu'
----------------------------------------------------------------------
TOTAL: 6
----------------------------------------------------------------------
Warnings added:
----------------------------------------------------------------------
1881 /usr/los178/3.0.0/ppc_dev/sys/include/kernel/kernel.h:94:1: warning: this is the location of the previous definition
3378 regex.h:39:1: warning: "RE_DUP_MAX" redefined
3379 /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
3380 regex.h:39:1: warning: "RE_DUP_MAX" redefined
3381 /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
3382 regex.h:39:1: warning: "RE_DUP_MAX" redefined
3383 /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
3384 regex.h:39:1: warning: "RE_DUP_MAX" redefined
3385 /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
3386 regex.h:39:1: warning: "RE_DUP_MAX" redefined
3387 /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
3388 regex.h:39:1: warning: "RE_DUP_MAX" redefined
3389 /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
3390 regex.h:39:1: warning: "RE_DUP_MAX" redefined
3391 /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
3392 regex.h:39:1: warning: "RE_DUP_MAX" redefined
3393 /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
3394 regex.h:39:1: warning: "RE_DUP_MAX" redefined
3395 /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
3396 regex.h:39:1: warning: "RE_DUP_MAX" redefined
3397 /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
3398 regex.h:39:1: warning: "RE_DUP_MAX" redefined
3399 /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
3400 regex.h:39:1: warning: "RE_DUP_MAX" redefined
3401 /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
3403 regex.h:39:1: warning: "RE_DUP_MAX" redefined
3404 /usr/los178/3.0.0/ppc_dev/usr/include/limits.h:162:1: warning: this is the location of the previous definition
3412 regex.c:4825: warning: passing arg 2 of `bcmp_translate' discards qualifiers from pointer target type
3415 ../tar-1.11.2/getdate.y:807: warning: static declaration of 'getdate_yylex' follows non-static declaration
3416 bison.simple:332: warning: previous implicit declaration of 'getdate_yylex' was here
3419 /usr/los178/3.0.0/ppc_dev/usr/include/wait.h:58:2: warning: #warning Using instead of
3421 pipesize.h:8:1: warning: "PIPESIZE" redefined
3422 /usr/los178/3.0.0/ppc_dev/usr/include/conf.h:76:1: warning: this is the location of the previous definition
3424 display.c:1155: warning: comparison is always true due to limited range of data type
3425 malloc.c:521: warning: conflicting types for built-in function 'malloc'
3426 malloc.c:798: warning: conflicting types for built-in function 'calloc'
3427 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3428 ../ex/ex_cd.c:75: warning: assignment from incompatible pointer type
3429 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3430 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3431 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3432 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3433 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3434 ../vi/getc.c:63: warning: passing arg 3 of `db_eget' from incompatible pointer type
3435 ../vi/getc.c:193: warning: passing arg 4 of `db_get' from incompatible pointer type
3436 ../common/key.c:159: warning: comparison is always true due to limited range of data type
3437 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3438 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3439 ../common/recover.c:368: warning: assignment from incompatible pointer type
3440 ../vi/v_txt.c:2184: warning: comparison of distinct pointer types lacks a cast
3441 ../vi/v_txt.c:2202: warning: comparison of distinct pointer types lacks a cast
3442 ../vi/v_ulcase.c:130: warning: passing arg 4 of `db_get' from incompatible pointer type
3443 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3444 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3445 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3446 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3447 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3448 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3449 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3450 /usr/los178/3.0.0/ppc_dev/usr/include/sys/uio.h:21:2: warning: #warning Using instead of
3451 /usr/los178/3.0.0/ppc_dev/usr/include/sys/param.h:21:2: warning: #warning Using instead of
3452 /usr/los178/3.0.0/ppc_dev/usr/include/cdefs.h:21:2: warning: #warning Using instead of
3453 /usr/los178/3.0.0/ppc_dev/usr/include/cdefs.h:21:2: warning: #warning Using instead of
----------------------------------------------------------------------
TOTAL: 63