From nobody Mon Feb 9 09:34:48 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=none (zohomail.com: 192.237.175.120 is neither permitted nor denied by domain of lists.xenproject.org) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=fail(p=none dis=none) header.from=citrix.com ARC-Seal: i=1; a=rsa-sha256; t=1579107682; cv=none; d=zohomail.com; s=zohoarc; b=IfPxOXr3Avias1mywuBck8CDjUvH7THZbY/vNcsg6p8iRIPm5dZGRjIxRWZl/cC0wnRiogmBbRWlMPOfweDVwBWugTcBwcgRFGuXuOZopm3k7sAZZSd+/7PuZuCNr0PnbE4Kr1ahPlXMkFTD9Hr73ufFJL5VnKo3t0CTm66RAow= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1579107682; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=HFotmlaBmHCgdStNnuSZmqWwUewFl//WOs/aLhLT/Rs=; b=VBZ79Y6OzG5uI9s3wpZG7PEGwHcD+QSVLXsPsVKUKtHnDB3B+tFIQ93Is4GTFeDojQu03R9W67RHs5Hs/kFmjGUVDPShs++Hif3tix9buoabY9MV24vXhIJBNBjVhfFw8/+sbITFnGkQw6HxX1mim7hMbA67CdgUO88tXTbOUhg= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=none (zohomail.com: 192.237.175.120 is neither permitted nor denied by domain of lists.xenproject.org) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 15791076824951011.7695319543216; Wed, 15 Jan 2020 09:01:22 -0800 (PST) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1irm21-0008In-7v; Wed, 15 Jan 2020 17:00:37 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1irm1z-0008II-7B for xen-devel@lists.xenproject.org; Wed, 15 Jan 2020 17:00:35 +0000 Received: from esa2.hc3370-68.iphmx.com (unknown [216.71.145.153]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 83ba5dcf-37b8-11ea-85c2-12813bfff9fa; Wed, 15 Jan 2020 17:00:23 +0000 (UTC) X-Inumbo-ID: 83ba5dcf-37b8-11ea-85c2-12813bfff9fa DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=citrix.com; s=securemail; t=1579107623; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=YPPcEcLWqAV5YjOxvfjsuf6L90e40FW3jrZNsDBiatI=; b=EnVZ2xV1Y1f9RM2AoGgoV8uDvZTu5biEMW4Hft51CFMpqyrwUPQmgtSy 3Deh4Fi0EdARE6Mn3toN89x+1sQgD8IC2gMxvO0hHNJxZ4+xgM8gQRIsr NO4kihZXm8ZhKWwi+y1z+73hnvufEInv//MWV5SukNyI9JfGgVaqYaBms U=; Authentication-Results: esa2.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none; spf=None smtp.pra=anthony.perard@citrix.com; spf=Pass smtp.mailfrom=anthony.perard@citrix.com; spf=None smtp.helo=postmaster@mail.citrix.com Received-SPF: none (zohomail.com: 192.237.175.120 is neither permitted nor denied by domain of lists.xenproject.org) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Received-SPF: None (esa2.hc3370-68.iphmx.com: no sender authenticity information available from domain of anthony.perard@citrix.com) identity=pra; client-ip=162.221.158.21; receiver=esa2.hc3370-68.iphmx.com; envelope-from="anthony.perard@citrix.com"; x-sender="anthony.perard@citrix.com"; x-conformance=sidf_compatible Received-SPF: Pass (esa2.hc3370-68.iphmx.com: domain of anthony.perard@citrix.com designates 162.221.158.21 as permitted sender) identity=mailfrom; client-ip=162.221.158.21; receiver=esa2.hc3370-68.iphmx.com; envelope-from="anthony.perard@citrix.com"; x-sender="anthony.perard@citrix.com"; x-conformance=sidf_compatible; x-record-type="v=spf1"; x-record-text="v=spf1 ip4:209.167.231.154 ip4:178.63.86.133 ip4:195.66.111.40/30 ip4:85.115.9.32/28 ip4:199.102.83.4 ip4:192.28.146.160 ip4:192.28.146.107 ip4:216.52.6.88 ip4:216.52.6.188 ip4:162.221.158.21 ip4:162.221.156.83 ip4:168.245.78.127 ~all" Received-SPF: None (esa2.hc3370-68.iphmx.com: no sender authenticity information available from domain of postmaster@mail.citrix.com) identity=helo; client-ip=162.221.158.21; receiver=esa2.hc3370-68.iphmx.com; envelope-from="anthony.perard@citrix.com"; x-sender="postmaster@mail.citrix.com"; x-conformance=sidf_compatible IronPort-SDR: eGv1VLa4Dg2lfnVm5d8CdymZSfQwpCxQvX6EfPQ9Gvjf85+Gaz4GYORniXFeVTo5uai77nZjSM n8bO+B2l60rAjUPfIp/JJqWzIidE8ndvsBxDP+fSV5NZlnPFDkhh4GxaTuuu1vquB/9tUg/7Tj FjvVZt1+QmbMmKPjLWmonKFrWwyHR9Mo5fUnocENMxMIvC2V+HTgtBHXy7XFyH9uREK3j/7xGl e4K9VTanex5ueIe+yXUvJ2qTp1kmQI8QPIubnV5R9kY2WnRONx/5F21lpbVBOOh9aGIlD+VgAU goM= X-SBRS: 2.7 X-MesageID: 10973259 X-Ironport-Server: esa2.hc3370-68.iphmx.com X-Remote-IP: 162.221.158.21 X-Policy: $RELAYED X-IronPort-AV: E=Sophos;i="5.70,323,1574139600"; d="scan'208";a="10973259" From: Anthony PERARD To: Date: Wed, 15 Jan 2020 17:00:13 +0000 Message-ID: <20200115170015.249667-5-anthony.perard@citrix.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200115170015.249667-1-anthony.perard@citrix.com> References: <20200115170015.249667-1-anthony.perard@citrix.com> MIME-Version: 1.0 Subject: [Xen-devel] [XEN PATCH v3 4/6] xen: Move CONFIG_INDIRECT_THUNK to Kconfig X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Anthony PERARD , Andrew Cooper , Wei Liu , Jan Beulich , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Now that Kconfig has the capability to run shell command when generating CONFIG_* we can use it in some cases to test CFLAGS. CONFIG_INDIRECT_THUNK is a good example that wants to exist both in Makefile and as a C macro, which Kconfig do. So use Kconfig to generate CONFIG_INDIRECT_THUNK and have the CFLAGS depends on that. Signed-off-by: Anthony PERARD Acked-by: Andrew Cooper --- xen/arch/x86/Kconfig | 3 +++ xen/arch/x86/Rules.mk | 4 +--- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/xen/arch/x86/Kconfig b/xen/arch/x86/Kconfig index f853c0456404..8149362bdef3 100644 --- a/xen/arch/x86/Kconfig +++ b/xen/arch/x86/Kconfig @@ -31,6 +31,9 @@ config ARCH_DEFCONFIG string default "arch/x86/configs/x86_64_defconfig" =20 +config INDIRECT_THUNK + def_bool $(cc-option,-mindirect-branch-register) + menu "Architecture Features" =20 source "arch/Kconfig" diff --git a/xen/arch/x86/Rules.mk b/xen/arch/x86/Rules.mk index 92fdbe9d6822..a2c257fb95b2 100644 --- a/xen/arch/x86/Rules.mk +++ b/xen/arch/x86/Rules.mk @@ -71,11 +71,9 @@ CFLAGS +=3D -DGCC_HAS_VISIBILITY_ATTRIBUTE endif =20 # Compile with thunk-extern, indirect-branch-register if avaiable. -ifneq ($(call cc-option,$(CC),-mindirect-branch-register,n),n) +ifeq ($(CONFIG_INDIRECT_THUNK),y) CFLAGS +=3D -mindirect-branch=3Dthunk-extern -mindirect-branch-register -CFLAGS +=3D -DCONFIG_INDIRECT_THUNK CFLAGS +=3D -fno-jump-tables -export CONFIG_INDIRECT_THUNK=3Dy endif =20 # If supported by the compiler, reduce stack alignment to 8 bytes. But all= ow --=20 Anthony PERARD _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel