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Message-ID: <5197828F.9040206@mccme.ru>
Date: Sat, 18 May 2013 17:30:55 +0400
From: Alexander Cherepanov <cherepan@...me.ru>
To: john-dev@...ts.openwall.com
Subject: Unused macros
Hi!
Attached is a naive perl script to find unused macros (i.e. #define's)
in .c files. Its output mimicks gcc's warnings so that you can easily
navigate using usual means like next-error in emacs.
It knows to ignore several macros used in john which are listed at
https://gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html
(such as _POSIX_SOURCE) but that's all.
For core it outputs the following:
bench.c:7: warning: unused macro '__POSIX'
best.c:11: warning: unused macro '__POSIX'
c3_fmt.c:11: warning: unused macro '_XOPEN_VERSION'
c3_fmt.c:12: warning: unused macro '_XPG4_2'
DES_bs_b.c:721: warning: unused macro 'vandn'
DES_bs_b.c:723: warning: unused macro 'vsel'
DES_bs_b.c:762: warning: unused macro 'vnot'
DES_bs_b.c:1108: warning: unused macro 'DEPTH'
DES_bs_b.c:1452: warning: unused macro 'kd'
sboxes.c:2: warning: unused macro 'andn'
signals.c:9: warning: unused macro '__POSIX'
status.c:7: warning: unused macro '__POSIX'
All these seems to be falses but I'm not sure they are worth to be being
blacklisted in the script.
For bleeding a list is attached. It contains 215 items and some are
quite amusing (like several unused FORMAT_LABELs). Hope it would be
useful for someone.
--
Alexander Cherepanov
View attachment "unused-macros" of type "text/plain" (1179 bytes)
View attachment "unused-macros.bleeding.txt" of type "text/plain" (11918 bytes)
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