| Message ID | 20190830005037.24004-11-ivan.khoronzhuk@linaro.org |
|---|---|
| State | RFC |
| Delegated to: | BPF Maintainers |
| Headers | show
Return-Path: <netdev-owner@vger.kernel.org> X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.b="Okdsp5Zx"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 46KLWY5g5sz9sNk for <patchwork-incoming-netdev@ozlabs.org>; Fri, 30 Aug 2019 10:51:05 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727936AbfH3Au7 (ORCPT <rfc822;patchwork-incoming-netdev@ozlabs.org>); Thu, 29 Aug 2019 20:50:59 -0400 Received: from mail-lj1-f196.google.com ([209.85.208.196]:45481 "EHLO mail-lj1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727900AbfH3Au4 (ORCPT <rfc822;netdev@vger.kernel.org>); Thu, 29 Aug 2019 20:50:56 -0400 Received: by mail-lj1-f196.google.com with SMTP id l1so4768004lji.12 for <netdev@vger.kernel.org>; Thu, 29 Aug 2019 17:50:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=mY025N9ZTLshq6bUASscJHYyFWN73WCKPGSueHP30TA=; b=Okdsp5ZxNf0c0ZS1PgudZ1/Uzcx1vh+JyUHLIBaB4gA9eHqIu0am2+/xAGRamBrEmK qCvznYgVkMcSDDWdiuCGk34vVj8/mP+ro1bCTjA8Ka3xrOrkCNjL5U6xgrBRNELJmuje tp5PnYpAOK9+P7pd2AMtrpQ2VFUiwZgdf+VjTUiXBMwwiLm0B+wHxS9J4hkKQKTR1PMo g5JzQdW9lrRdG4QItLYA3aqHsMKgs2n4aIc4BsxCiDVNYjJ1gBnQXG5diF7z2I2DKLba 2UWvt484BgUsrYmmG+TmQ/bM0gM9QCmze3gdMrsQwFGwno6fmli/VeP2qEfoN4+I/6o0 LHHg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=mY025N9ZTLshq6bUASscJHYyFWN73WCKPGSueHP30TA=; b=izKk1Y2g+9FXgdEBDWCzOCTv7PaKeRVRO3NobcFJCviW4mZKP7hJo+MIXOdiy40/7c ya/ThARz8k7X7O5weWNTji9zau/xQdhJAHKvTuGUFl5HJpt5fnfsJCkY6yCiw8nMpNRm EgcFtWd8jnP913HoeL4W/UW7nUAIPdA0BT9h0IPTiVst7x9ZS2EAj82cqySLdmlZmrdg 38vJkBIq2RaCZO6QD5TU0WY7BDOoGeEkwKZ+DwWLq+iUr2WymNUT8s7OgxGM0i5+o7T6 yRhHrp34rx9VYLiEKEAjareTYeMQjDLhtI2Cns97jkNAbbGzrs2vI/agD4we92VrxTxH uMag== X-Gm-Message-State: APjAAAUbn8qPxM/GTxmR2NzLl0E3yXxP+u0WITHDwqD3WqmNptZuxnoG y+SPw95XJW8V7lCL/OTG6JHmTQ== X-Google-Smtp-Source: APXvYqwqImk+P6XTagmx3q1aVV2TwK0n5J/VZAS+IZlC8HW1HTeVnR0gZP11ETCdNHIKYsMWLXe3bA== X-Received: by 2002:a2e:2bda:: with SMTP id r87mr1097319ljr.3.1567126254430; Thu, 29 Aug 2019 17:50:54 -0700 (PDT) Received: from localhost.localdomain (168-200-94-178.pool.ukrtel.net. [178.94.200.168]) by smtp.gmail.com with ESMTPSA id f19sm628149lfk.43.2019.08.29.17.50.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Aug 2019 17:50:53 -0700 (PDT) From: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> To: linux@armlinux.org.uk, ast@kernel.org, daniel@iogearbox.net, yhs@fb.com, davem@davemloft.net, jakub.kicinski@netronome.com, hawk@kernel.org, john.fastabend@gmail.com Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, clang-built-linux@googlegroups.com, Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Subject: [PATCH RFC bpf-next 10/10] arm: include: asm: unified: mask .syntax unified for clang Date: Fri, 30 Aug 2019 03:50:37 +0300 Message-Id: <20190830005037.24004-11-ivan.khoronzhuk@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190830005037.24004-1-ivan.khoronzhuk@linaro.org> References: <20190830005037.24004-1-ivan.khoronzhuk@linaro.org> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: <netdev.vger.kernel.org> X-Mailing-List: netdev@vger.kernel.org |
| Series |
improve/fix cross-compilation for bpf samples
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expand
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diff --git a/arch/arm/include/asm/unified.h b/arch/arm/include/asm/unified.h index 1e2c3eb04353..3cf8757b9a14 100644 --- a/arch/arm/include/asm/unified.h +++ b/arch/arm/include/asm/unified.h @@ -11,7 +11,11 @@ #if defined(__ASSEMBLY__) .syntax unified #else -__asm__(".syntax unified"); + +#ifndef __clang__ + __asm__(".syntax unified"); +#endif + #endif #ifdef CONFIG_CPU_V7M
The samples/bpf reuses linux headers, with clang -emit-llvm, so this w/a is only for samples/bpf (samples/bpf/Makefile CLANG-bpf). It allows to build samples/bpf for arm on target board. In another way clang -emit-llvm generates errors like: <inline asm>:1:1: error: unknown directive .syntax unified I have verified it on clang 5, 6 ,7, 8, 9, 10 as on native platform as for cross-compiling. This decision is arguable, but it doesn't have impact on samples/bpf so it's easier just ignore it for clang, at least for now... Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> --- arch/arm/include/asm/unified.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)