lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Message-ID: <b8bf37780911040639k67575fe6sf0731ed7b3edea62@mail.gmail.com>
Date:	Wed, 4 Nov 2009 12:39:35 -0200
From:	André Goddard Rosa <andre.goddard@...il.com>
To:	Frederic Weisbecker <fweisbec@...il.com>, laijs@...fujitsu.com,
	mingo@...e.hu, davem@...emloft.net, akpm@...ux-foundation.org,
	harvey.harrison@...il.com,
	linux list <linux-kernel@...r.kernel.org>
Cc:	me <andre.goddard@...il.com>
Subject: [PATCH v3 0/7] vsprintf: reduce code size and clean up

From: André Goddard Rosa <andre.goddard@...il.com>
Date: Tue, 3 Nov 2009 11:21:39 -0200
Subject: [PATCH v3 0/7] vsprintf: reduce code size and clean up
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch reduces code size by 224 bytes on my Core 2 with gcc 4.4.1:

      text    data     bss     dec     hex filename
     15767       0       8   15775    3d9f lib/vsprintf.o-before
     15543       0       8   15551    3cbf lib/vsprintf.o-after

and implements some cleanups.

Changelog:
    v3: improved comments on patch 5/7 and factorize a switch statement on 6/7
as per suggestions from Ingo and Frederic (thanks!)
    v2: addressed feedback from Frederic Weisbecker review (thanks!!)
and split into separate patches
    v1: original submission

André Goddard Rosa (7):
  vsprintf: factorize "(null)" string
  vsprintf: pre-calculate final string length for later use
  vsprintf: give it some care to please checkpatch.pl
  vsprintf: use TOLOWER whenever possible
  vsprintf: reduce code size by avoiding extra check
  vsprintf: move local vars to block local vars and remove unneeded ones
  vsprintf: factor out skip_space code in a separate function

 lib/vsprintf.c |  307 +++++++++++++++++++++++++++++---------------------------
 1 files changed, 159 insertions(+), 148 deletions(-)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ