Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935775AbdCXDvB (ORCPT ); Thu, 23 Mar 2017 23:51:01 -0400 Received: from guitar.tcltek.co.il ([192.115.133.116]:50586 "EHLO mx.tkos.co.il" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935731AbdCXDuy (ORCPT ); Thu, 23 Mar 2017 23:50:54 -0400 Date: Fri, 24 Mar 2017 06:50:46 +0300 From: Baruch Siach To: Nicolas Pitre Cc: Greg Kroah-Hartman , Jiri Slaby , Russell King , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/3] minitty: a minimal TTY layer alternative for embedded systems Message-ID: <20170324035046.2mupvte2yzbgmslb@tarshish> References: <20170323210304.2181-1-nicolas.pitre@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170323210304.2181-1-nicolas.pitre@linaro.org> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1494 Lines: 34 Hi Nicolas, On Thu, Mar 23, 2017 at 05:03:01PM -0400, Nicolas Pitre wrote: > Here's some numbers using a minimal ARM config. > > When CONFIG_TTY=y, the following files are linked into the kernel: > > text data bss dec hex filename > 8796 128 0 8924 22dc drivers/tty/n_tty.o > 12846 276 44 13166 336e drivers/tty/serial/serial_core.o > 4852 489 49 5390 150e drivers/tty/sysrq.o > 1376 0 0 1376 560 drivers/tty/tty_buffer.o > 13571 172 132 13875 3633 drivers/tty/tty_io.o > 3072 0 0 3072 c00 drivers/tty/tty_ioctl.o > 2457 2 120 2579 a13 drivers/tty/tty_ldisc.o > 1328 0 0 1328 530 drivers/tty/tty_ldsem.o > 316 0 0 316 13c drivers/tty/tty_mutex.o > 2516 0 0 2516 9d4 drivers/tty/tty_port.o > 51130 1067 345 52542 cd3e (TOTALS) > > With CONFIG_TTY=n and CONFIG_MINITTY_SERIAL=y, the above is replaced by: > > text data bss dec hex filename > 8776 8 108 8892 22bc drivers/tty/serial/minitty_serial.o tty_baudrate.o is missing here. It is included in serial_core.o when CONFIG_TTY=y. baruch -- http://baruch.siach.name/blog/ ~. .~ Tk Open Systems =}------------------------------------------------ooO--U--Ooo------------{= - baruch@tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il -