From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753807AbZI2AWR (ORCPT ); Mon, 28 Sep 2009 20:22:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753765AbZI2AWR (ORCPT ); Mon, 28 Sep 2009 20:22:17 -0400 Received: from ist.d-labs.de ([213.239.218.44]:59162 "EHLO mx01.d-labs.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753751AbZI2AWQ (ORCPT ); Mon, 28 Sep 2009 20:22:16 -0400 Date: Tue, 29 Sep 2009 02:22:09 +0200 From: Florian Mickler To: linux-kernel@vger.kernel.org Subject: Re: visibility of linux source Message-ID: <20090929022209.39557425@schatten> In-Reply-To: <25a94d2a0909281502u2bb383aemdb44f4af8ffdc9e7@mail.gmail.com> References: <25a94d2a0909281502u2bb383aemdb44f4af8ffdc9e7@mail.gmail.com> X-Mailer: Claws Mail 3.7.2 (GTK+ 2.16.6; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 29 Sep 2009 00:02:33 +0200 Taro Okumichi wrote: > I have written a gcc-tracer and html-formatter that shows > Linux's init/main.c formatted as dynamic-html including: > o expand macros by clicking on them > o expand include directives > o traverse c-structs > Address: > http://cfw.sourceforge.net/htmltag/init/main.c.pinfo.html > I have only processed init/main.c (50mb mysql content) > As far as I understand (maybe I am wrong) this kind of > visibility is not achieved till now. > Note: > I tested firefox (3.5) and konqueror. The first page takes ~ > 10 Seconds to load, therefore be patient until the right > side init/main.c content is shown (ajax fetch from a mysql db). > > o Complete Preprocessor Trace: > All Macro expansions where traced and can be clicked > open to see how they expand and where the macro was > defined. > - to open a macro expansion: click the macro marked > with a white box, > + after the macro has been expanded you can: > + click the macro name to get the macro definition location > + a "<" link appears at the end of the macro expansion, > click it to close the macro expansion again. > - #ifdef etc. preprocessor directives > can also be expanded. Blocks that are inactive are > marked grey. > - #include directives can be clicked to expand to the > included file > > o Variable/function declares are Trace: > Full struct type layout is traced and when a struct > types is used you can click on the type declarator, > > To get going: > 1. Browse to the end of init/main.c page: > 2. click on > "param_check_bool" it will expand to: > param_check_bool __param_check ( initcall_debug , & ( > initcall_debug ) , int )[<] > Click on param_check_bool again, it will sow the definition pos of > the macro, click on "<" and it will close the expansion, > You can recursively ascend into for instance expanding __param_check etc... > > > I thought to share this link to inspire some real gcc experts > or kernel hackers to implement this kind of feature in the production > gcc, I was using gcc-4.2.1 to output a cpp and c-parse trace > however the code is that kind of messy and would be of no > use, easier to implement newly, I guess that it should be obvious > what to do for for the right person. After getting the trace I use > a simple perl script (also messy code that I'm kind of ashamed to > publish) to format html. > > Implementation note: > > Using a ajax request to retrieve the html, the Mysql db > content is ~ 50 mb for the whole of main.c. No optimization > is done, so this includes lots of redundant entries. > > The left index frame should not be used, the javascript code > is kind of buggy, so only use the right frame where the code > is shown. > > Also: There is a bug in when closing a "include" directive section: > (At least in firefox) A new windows will pop up (I didnt find out > why this is the case). Click the window to the back and continue > (not closing it otherwise the next #include directive opens it again... > > Have fun > -- Tkokum Wow, nice! Come on! Don't be shy! This is called 'rapid prototyping' and is a useful thing. Plz share your code. I'd like to play with it. (one things come to mind: extending cscope/vi) Sincerely, Florian -- A: Because it messes up the order in which people normally read text. > Q: Why is top-posting such a bad thing? >> A: Top-posting. >>> Q: What is the most annoying thing in e-mail?