From nobody Fri Dec 19 20:33:09 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1554850996; cv=none; d=zoho.com; s=zohoarc; b=YIT3R7G8ZS0pYr1EomhPWGem0D6Xa98WXFija4uCvuOoLW9Ht7+xaS2teySDVLYrk9prYgr6q75IX0H2qeoOBckC8X/7euSBiA6QD11jhdfOVLycl9aCxmTd4dCMjJ3BZSjuMj3Hxvy0vGFWfF5XKrHasegveFvRIYzXDq3J4qk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1554850996; h=Content-Type:Content-Transfer-Encoding:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=/mtBpBcAIK1b3Pm/DtESAds4MceAqIufBF2irjF2d3U=; b=XKFYDl0s4MFYPqmXUpDwnIs6nNQgEa5ykvqR10KlVJdzi8gdTD3yaf+x541FvSYg8GC/ABNR5sJhbgb+qq2f4w36YNkERG+a+v2a6adbYVFjZvvcSG5ZCY4f5BBvTYXqbfdAz62vnsUXuy/hT8QnDYrFdGyU30NrfQ/5/oo95rY= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1554850995937439.133275900321; Tue, 9 Apr 2019 16:03:15 -0700 (PDT) Received: from localhost ([127.0.0.1]:50211 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hDzli-0006jy-P7 for importer@patchew.org; Tue, 09 Apr 2019 19:03:06 -0400 Received: from eggs.gnu.org ([209.51.188.92]:47762) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hDzjh-0005XX-5b for qemu-devel@nongnu.org; Tue, 09 Apr 2019 19:01:02 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hDzjg-0001My-2P for qemu-devel@nongnu.org; Tue, 09 Apr 2019 19:01:01 -0400 Received: from mx1.redhat.com ([209.132.183.28]:34486) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hDzjf-0001MP-Qx for qemu-devel@nongnu.org; Tue, 09 Apr 2019 19:01:00 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 02C9B307EAA4; Tue, 9 Apr 2019 23:00:59 +0000 (UTC) Received: from lacos-laptop-7.usersys.redhat.com (ovpn-120-114.rdu2.redhat.com [10.10.120.114]) by smtp.corp.redhat.com (Postfix) with ESMTP id 684EC1001DC0; Tue, 9 Apr 2019 23:00:56 +0000 (UTC) From: Laszlo Ersek To: berrange@redhat.com, eblake@redhat.com, f4bug@amsat.org, imammedo@redhat.com, kraxel@redhat.com, mprivozn@redhat.com, mst@redhat.com, peter.maydell@linaro.org, philmd@redhat.com, qemu-devel@nongnu.org Date: Wed, 10 Apr 2019 01:00:15 +0200 Message-Id: <20190409230022.6462-6-lersek@redhat.com> In-Reply-To: <20190409230022.6462-1-lersek@redhat.com> References: <20190409230022.6462-1-lersek@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.44]); Tue, 09 Apr 2019 23:00:59 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH for-4.1 v4 05/12] roms/edk2-funcs.sh: add the qemu_edk2_get_thread_count() function X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" The edk2 "build" utility natively supports building modules (that is, INF files) in parallel. The feature is not useful when building a single module (with the "-m" option), but it is useful for platform firmware builds (which include many modules). Add a function that determines the "-n" option argument for "build", from the MAKEFLAGS variable (i.e. based on the presence of a make job server). Signed-off-by: Laszlo Ersek Reviewed-by: Philippe Mathieu-Daud=C3=A9 Tested-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Michal Privoznik Reviewed-by: Michael S. Tsirkin Tested-by: Igor Mammedov --- Notes: v4: =20 - no change =20 v3: =20 - pick up Igor's T-b =20 v2: =20 - pick up Phil's R-b / T-b =20 - pick up Michal's and Michael's R-b's roms/edk2-funcs.sh | 25 ++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/roms/edk2-funcs.sh b/roms/edk2-funcs.sh index d1cb1e4a111e..a9fae7ee891b 100644 --- a/roms/edk2-funcs.sh +++ b/roms/edk2-funcs.sh @@ -226,3 +226,28 @@ qemu_edk2_set_cross_env() =20 eval "export $cross_prefix_var=3D\$cross_prefix" } + + +# Determine the "-n" option argument (that is, the number of modules to bu= ild +# in parallel) for the edk2 "build" utility. Print the result to the stand= ard +# output. +# +# Parameters: +# $1: the value of the MAKEFLAGS variable +qemu_edk2_get_thread_count() +{ + local makeflags=3D"$1" + + if [[ "$makeflags" =3D=3D *--jobserver-auth=3D* ]] || + [[ "$makeflags" =3D=3D *--jobserver-fds=3D* ]]; then + # If there is a job server, allow the edk2 "build" utility to parallel= ize + # as many module builds as there are logical CPUs in the system. The "= make" + # instances forked by "build" are supposed to limit themselves through= the + # job server. The zero value below causes the edk2 "build" utility to = fetch + # the logical CPU count with Python's multiprocessing.cpu_count() meth= od. + printf '0\n' + else + # Build a single module at a time. + printf '1\n' + fi +} --=20 2.19.1.3.g30247aa5d201