From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EA397C433E0 for ; Mon, 28 Dec 2020 14:07:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AFFC022AAA for ; Mon, 28 Dec 2020 14:07:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2438265AbgL1OGy (ORCPT ); Mon, 28 Dec 2020 09:06:54 -0500 Received: from mail.kernel.org ([198.145.29.99]:40570 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2437916AbgL1OGQ (ORCPT ); Mon, 28 Dec 2020 09:06:16 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id C447620731; Mon, 28 Dec 2020 14:06:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1609164361; bh=1ATv6b1Niwr9sGkSnqoyB+xOcZ4LSPVWKmCxTIORgzk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zEEP9FSE06Nz6NroGuhYO7E7KYTjTTkFfmT72sZdOyJ015S66M/zFuqRuaydelFEu 7YHZoyq3ftpoFZSxJRQDyXz0VXHm9Qgd7oZLC3j0gmtOZEGH8ZVPgaP/kZ0PCaSCA1 iJqzbbOx0Hik6lsXFsufP9r/yzASSAqEH6Tl9gJ4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , Andrii Nakryiko , Luke Nelson , Sasha Levin Subject: [PATCH 5.10 154/717] selftests/bpf: Fix broken riscv build Date: Mon, 28 Dec 2020 13:42:32 +0100 Message-Id: <20201228125028.335548545@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201228125020.963311703@linuxfoundation.org> References: <20201228125020.963311703@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Björn Töpel [ Upstream commit 6016df8fe874e1cf36f6357d71438b384198ce06 ] The selftests/bpf Makefile includes system include directories from the host, when building BPF programs. On RISC-V glibc requires that __riscv_xlen is defined. This is not the case for "clang -target bpf", which messes up __WORDSIZE (errno.h -> ... -> wordsize.h) and breaks the build. By explicitly defining __risc_xlen correctly for riscv, we can workaround this. Fixes: 167381f3eac0 ("selftests/bpf: Makefile fix "missing" headers on build with -idirafter") Signed-off-by: Björn Töpel Signed-off-by: Andrii Nakryiko Acked-by: Luke Nelson Link: https://lore.kernel.org/bpf/20201118071640.83773-2-bjorn.topel@gmail.com Signed-off-by: Sasha Levin --- tools/testing/selftests/bpf/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 542768f5195b7..136df8c102812 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -220,7 +220,8 @@ $(RESOLVE_BTFIDS): $(BPFOBJ) | $(BUILD_DIR)/resolve_btfids \ # build would have failed anyways. define get_sys_includes $(shell $(1) -v -E - &1 \ - | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') + | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \ +$(shell $(1) -dM -E -