From patchwork Mon Nov 22 19:20:19 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Philippe Brucker X-Patchwork-Id: 12632703 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 23881C433F5 for ; Mon, 22 Nov 2021 19:24:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239909AbhKVT1F (ORCPT ); Mon, 22 Nov 2021 14:27:05 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57546 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239827AbhKVT1B (ORCPT ); Mon, 22 Nov 2021 14:27:01 -0500 Received: from mail-wm1-x32d.google.com (mail-wm1-x32d.google.com [IPv6:2a00:1450:4864:20::32d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 38994C06175B for ; Mon, 22 Nov 2021 11:23:52 -0800 (PST) Received: by mail-wm1-x32d.google.com with SMTP id r9-20020a7bc089000000b00332f4abf43fso512221wmh.0 for ; Mon, 22 Nov 2021 11:23:52 -0800 (PST) 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 :mime-version:content-transfer-encoding; bh=20odS1sGlZOVOTVJ+h0ATXc3IjCp4ghIzYe7OtypAl4=; b=Tn1lU0bD88IO+9yCRA6my8Iwn8DdSi2yjmwKm6kCVat9P4MZbf8fk8q1VWneE0TQMr xnQSOZ+OGzgQUnaQRhJrBVw8vuNdWTbTKFLwx/nlO5xCaGq/zFUzcaPK9h51bWJxQ3ik Per+P/IB5wRUmmxGrykwQfiRNOBPXSvqCf2mp0Pg+peiE5PtpEZCvU3IzL9SXBgoDSJT 9MjphdkIt/a4BQLYOUr3f4akQA/F2Zlwj5jXh+48xjNpBUj3LphtLWGQY7+K7piMHFmt nk95BeGVt1G9J6C34OPzChTKQfutYPiyse4sOcDVW+7TmgMR8d6h5nhk55JdaisCqkwi pgzQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=20odS1sGlZOVOTVJ+h0ATXc3IjCp4ghIzYe7OtypAl4=; b=wiL+asekPOlwJBUEi/+V7sc84x2aSuROWIIzt9SMgcpEj5XBkbPks+3CvxtRM6l0Rv hxu3gMr5SrshAefZmblA8FRRYUdfPk8Sj8WemCg8cUACSjfjZVI8WDL6i8S2VrsT6CwW ezxu9kN6I+e6Q/jSax66hzud1FCHREXkcE/2eshniGHkELqcQelkCCSLewxDaVydW7uN bkZlOXzZsFdRlq6+WW2EN0+LBE0v4KJN0zlTOcLdrXOonkZi8RWpZu9mp4QcpDRmtTwU 2nYLne+ahLoWFL/NJCXGFppU1xTHat+AyL+N6D/QNHWw5CRyyVfEwL3q0XlUfpBmOsQX u01w== X-Gm-Message-State: AOAM532wugjgTyzCx209OsRhVH/O7SUUcY/Rr1rMH1BvRsL3UFPT/3Pr llZN+TQe9VPlZvrGQYafsQMofA== X-Google-Smtp-Source: ABdhPJwO+fR7TuysSgJw95qlWY88C/MS5DSdhnBIyjOi33oxzKHfxJ2yjFeNCmhCvb1o8azdpWmQhw== X-Received: by 2002:a05:600c:1e1c:: with SMTP id ay28mr33464993wmb.131.1637609030871; Mon, 22 Nov 2021 11:23:50 -0800 (PST) Received: from localhost.localdomain (cpc92880-cmbg19-2-0-cust679.5-4.cable.virginm.net. [82.27.106.168]) by smtp.gmail.com with ESMTPSA id b188sm9916150wmd.45.2021.11.22.11.23.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Nov 2021 11:23:50 -0800 (PST) From: Jean-Philippe Brucker To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, shuah@kernel.org, nathan@kernel.org, ndesaulniers@google.com Cc: kafai@fb.com, songliubraving@fb.com, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, bpf@vger.kernel.org, linux-kselftest@vger.kernel.org, llvm@lists.linux.dev, Jean-Philippe Brucker Subject: [PATCH bpf-next 5/6] tools/runqslower: Enable cross-building with clang Date: Mon, 22 Nov 2021 19:20:19 +0000 Message-Id: <20211122192019.1277299-6-jean-philippe@linaro.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211122192019.1277299-1-jean-philippe@linaro.org> References: <20211122192019.1277299-1-jean-philippe@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Cross-building using clang requires passing the "-target" flag rather than using the CROSS_COMPILE prefix. Makefile.include transforms CROSS_COMPILE into CLANG_CROSS_FLAGS. Add them to CFLAGS, and erase CROSS_COMPILE for the bpftool build, since it needs to be executed on the host. Signed-off-by: Jean-Philippe Brucker --- tools/bpf/runqslower/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/bpf/runqslower/Makefile b/tools/bpf/runqslower/Makefile index 8791d0e2762b..da6de16a3dfb 100644 --- a/tools/bpf/runqslower/Makefile +++ b/tools/bpf/runqslower/Makefile @@ -12,7 +12,7 @@ BPFOBJ := $(BPFOBJ_OUTPUT)libbpf.a BPF_DESTDIR := $(BPFOBJ_OUTPUT) BPF_INCLUDE := $(BPF_DESTDIR)/include INCLUDES := -I$(OUTPUT) -I$(BPF_INCLUDE) -I$(abspath ../../include/uapi) -CFLAGS := -g -Wall +CFLAGS := -g -Wall $(CLANG_CROSS_FLAGS) # Try to detect best kernel BTF source KERNEL_REL := $(shell uname -r) @@ -88,4 +88,4 @@ $(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(BPFOBJ_OU $(DEFAULT_BPFTOOL): $(BPFOBJ) | $(BPFTOOL_OUTPUT) $(Q)$(MAKE) $(submake_extras) -C ../bpftool OUTPUT=$(BPFTOOL_OUTPUT) \ - CC=$(HOSTCC) LD=$(HOSTLD) + ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD)