From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from astoria.ccjclearline.com (astoria.ccjclearline.com [64.235.106.9]) by mail.openembedded.org (Postfix) with ESMTP id E5F6D60809 for ; Tue, 8 Jul 2014 13:06:07 +0000 (UTC) Received: from [69.196.158.250] (port=33849 helo=crashcourse.ca) by astoria.ccjclearline.com with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.80) (envelope-from ) id 1X4V5z-0003QF-D4 for bitbake-devel@lists.openembedded.org; Tue, 08 Jul 2014 09:06:07 -0400 Date: Tue, 8 Jul 2014 09:06:06 -0400 (EDT) From: "Robert P. J. Day" X-X-Sender: rpjday@localhost To: BitBake developer list Message-ID: User-Agent: Alpine 2.11 (LFD 23 2013-08-11) MIME-Version: 1.0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - astoria.ccjclearline.com X-AntiAbuse: Original Domain - lists.openembedded.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - crashcourse.ca X-Source: X-Source-Args: X-Source-Dir: Subject: looking for good example of PREFERRED_PROVIDER_* ... udev/systemd? X-BeenThere: bitbake-devel@lists.openembedded.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Patches and discussion that advance bitbake development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Jul 2014 13:06:17 -0000 Content-Type: TEXT/PLAIN; charset=US-ASCII currently working through chapter 2 of the bitbake user manual, and my first thought is that sections 2.3 and 2.4 -- Providers, followed by Preferences, would make more sense in the reverse order. IMHO, selecting a preferred version for a recipe is fairly straightforward and a reader should be able to understand that easily, and there are lots of good examples of that. the notion of recipes "providing" an alternate name, however, strikes me as at least a bit more involved and should take a little more explanation. anyway, that's just my thinking. along those lines, i was looking through the oe-core layer for a simple example of PREFERRED_PROVIDER and it seems that "systemd" providing "udev" was a good example, so i took my sample build of core-image-minimal for qemux86, and just added to my local.conf the line: PREFERRED_PROVIDER_udev = "systemd" but now, i'm curious ... is there a "bitbake" subcommand that will show me the effect of that setting? i'm looking at the current bitbake command-line options and don't immediately see a way to ask for a list of preferred provider overrides. is there any bitbake command that will now display that "udev" is being provided by "systemd"? my apologies if this is a silly question and i'm overlooking the obvious. rday -- ======================================================================== Robert P. J. Day Ottawa, Ontario, CANADA http://crashcourse.ca Twitter: http://twitter.com/rpjday LinkedIn: http://ca.linkedin.com/in/rpjday ========================================================================