As I was recently looking at lttng-modules, wh= ich supports devupstream, I wanted to try to build the devupstream variant.= However, neither the information in devupstream.bbclass nor the documentat= ion in the manual were of any help. Since it uses the BBCLASSEXTEND mechanism, I thought it would be as simple = as doing `bitbake lttng-modules-devupstream`, but that did not work. So wha= t is the correct way to build a devupstream variant of a recipe?

//Peter

--_000_68ca10644e1b4a59b4888b72feb571d8axiscom_-- From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f52.google.com (mail-ej1-f52.google.com [209.85.218.52]) by mx.groups.io with SMTP id smtpd.web11.15472.1629900025205467310 for ; Wed, 25 Aug 2021 07:00:25 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@gmail.com header.s=20161025 header.b=ejGbNC50; spf=pass (domain: gmail.com, ip: 209.85.218.52, mailfrom: bruce.ashfield@gmail.com) Received: by mail-ej1-f52.google.com with SMTP id lc21so19422361ejc.7 for ; Wed, 25 Aug 2021 07:00:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=C0Pwt7HdLAmAGR3l0AqEAbclnN/LVCOeDqDKT+0tJ6Y=; b=ejGbNC506gnePxDgU2rNUE422eJ3eWdhJunKx7hOzJRv4BG+W6A36WVKD4TQ3xEsSx L1Jta/119XdCBs1QDKNvMLNbvOhE/BwHqa6y0u5DbmDt/u7UmSXhbjbCxaScY8DeBFxL GQHO9/nKmrlHL2eBIuFloEvl3ADbAe2pek6DcQNw2SgVZ0C9QKzsU2dsp08R9SI+2T59 PGBfZzs9Rm4WmbYMeYYygCvIxqMfsLNfK/AZnS8SlfLje/KEyyQDBSf/QscbSjwQ/u2R FtgET1oGjX4+Fe2KoytU9ZuuWPSSqvju0y1qExHAq1f9dAXe5H+8YNwRRKfjlf/TMnQp /gkw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=C0Pwt7HdLAmAGR3l0AqEAbclnN/LVCOeDqDKT+0tJ6Y=; b=UMxjxYkVzsGXdhkhJSUudorIO4PnhyYymoAgFSsBvbbGr/k+4i/YOlca1rkR68L03s RrZrbMzMjEyrQ+fTDaMmwKNwtoZZg6t7688N6nVXFkHcy1bYZoI2/hRGn7+JAYqJySQA jMd62fJXwbeYw7W4LO9zfHVYJKGq67g7eMuKdYAautIfcaXNgU+Ga+7GFqIWiVSZBaWK 4S4R+eTuXTaKLF1k4TlSpkZe5B9qNYO/jNt5UEJ1+HcyxA+int4ZPBG/cWBX/Zw/Mv1I dC9kQCNPQQBN9ByvFnjAIlGe4mh+TXmXl9FEdYJ3GeGjKWxAnMF/MwcXHXPdrU5MYMOY tuCw== X-Gm-Message-State: AOAM5306lPSALL5nS5tTFA9vtACZetCdp46hO5FJTQdD9+5H3MwKcSoY 1MTBCHh/vJi8uWYPgHSCVszmyMlWhXOj6OopeRE= X-Google-Smtp-Source: ABdhPJwiOxGYXaMP8vqK611jWDMzb3YrXsZvbSSTeND4lkJfA+A8Biu0TJTohi2hipnwwGLjQ8jyc2cDTGiaXF+Gnr4= X-Received: by 2002:a17:906:eb53:: with SMTP id mc19mr46330141ejb.22.1629900023590; Wed, 25 Aug 2021 07:00:23 -0700 (PDT) MIME-Version: 1.0 References: <68ca10644e1b4a59b4888b72feb571d8@axis.com> In-Reply-To: <68ca10644e1b4a59b4888b72feb571d8@axis.com> From: "Bruce Ashfield" Date: Wed, 25 Aug 2021 10:00:12 -0400 Message-ID: Subject: Re: [OE-core] How to build a devupstream variant of a recipe? To: Peter Kjellerstedt Cc: "OE Core (openembedded-core@lists.openembedded.org)" Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, Aug 25, 2021 at 9:51 AM Peter Kjellerstedt wrote: > > As I was recently looking at lttng-modules, which supports devupstream, I= wanted to try to build the devupstream variant. However, neither the infor= mation in devupstream.bbclass nor the documentation in the manual were of a= ny help. Since it uses the BBCLASSEXTEND mechanism, I thought it would be a= s simple as doing `bitbake lttng-modules-devupstream`, but that did not wor= k. So what is the correct way to build a devupstream variant of a recipe? Assuming that the devupstream variant/override doesn't modify PN (like we do in linux-yocto_5.13.bb), then it is selected by setting the preferred version to match the devupstream version. i.e. I have this in my local.conf for when I'm working on lttng devupstream= : # this picks the devupstream version #PREFERRED_VERSION_lttng-modules =3D "2.13.0-rc2+git%" (and adjust the version to suit). Bruce > > //Peter > > > >=20 > --=20 - Thou shalt not follow the NULL pointer, for chaos and madness await thee at its end - "Use the force Harry" - Gandalf, Star Trek II