From nobody Wed Dec 17 15:58:07 2025 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 E6EDCC636D0 for ; Sat, 25 Nov 2023 08:43:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231937AbjKYInc (ORCPT ); Sat, 25 Nov 2023 03:43:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48326 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231869AbjKYInT (ORCPT ); Sat, 25 Nov 2023 03:43:19 -0500 Received: from mail-pl1-x636.google.com (mail-pl1-x636.google.com [IPv6:2607:f8b0:4864:20::636]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 126F31987 for ; Sat, 25 Nov 2023 00:43:22 -0800 (PST) Received: by mail-pl1-x636.google.com with SMTP id d9443c01a7336-1ce656b9780so19348615ad.2 for ; Sat, 25 Nov 2023 00:43:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=daynix-com.20230601.gappssmtp.com; s=20230601; t=1700901801; x=1701506601; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=U0MgZk1wjA7oN6wh0F/2QVcx7Di6tJCC9+3i36KMM74=; b=gZiEqYa8bHmIGeqQ8gKc1wQ9NjI0djpJqRsXlwIaF3uWwfg2r8MeSqg0OdbPCGO4tf pZL8KZoi7rgYvozNxXwCu/jDz6YJDzKFmxBOKjkRKDTpCbp/a2TglEWl5N1ifU7j8ZP+ vDfTaUBL56IfarFBUrvcieiDKqzyt5nJk7uk47fGthCx3hcTCRHOQOLvs+xAvLly5WUe ZBJT0/OhcReVmNR/7/GpFloS8RcI6mKUD+D+QoPbNGFfHKP1QiLe7dFXqNi9uVHJPNcw 5w+ZrxR1w4px3DUl7jM1dSaCN25q5vonmpEXU9PDXDfFnc4wCMEGZo3OymngIv+R2vgn UIfw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1700901801; x=1701506601; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=U0MgZk1wjA7oN6wh0F/2QVcx7Di6tJCC9+3i36KMM74=; b=bK3T0qX+VYm75OM4498JVhKo45ss/oV0sMMohEcr93gGJ9dLVRRmkke2II6ofPP1O1 7sRW6zf183WJNHpcfpX/cIWyb5APjy96dMjwDgRhEAfJUqJvEpgz3DF78bY2KqIFiJ5j +NrbSdig7g+nDFyavPzg3MUcWKo5X7U7zrD1N1uo6zzdmw9ILSkTcj2JPNLQcngQvnh6 Rc65WX7eYWQSFV3CYouaO/wNFYpdCDh2SyeuPMUpncoNvTrWCCS5zdg4C06Ak9YJ0qjl j2RC/7A300klynPvzlmz16dqFpIBjAVqC31mD4CjQiam01JK0Zl/s1KnLkSe/GF8zN4B kdnw== X-Gm-Message-State: AOJu0YzfC3aUsWF+gY1VS9gmhOdt/aV+1sfHWpJNV/CZ0uzksXeXac1S ArcqW7XAfVbkluGV19Au2MrpiA== X-Google-Smtp-Source: AGHT+IHaALqakfp4Ql5TcXmGo6Ln+y2ernCX4AymHrvtStelwdd1wSXPTd6Nn3zAPPadG0W0MisnBg== X-Received: by 2002:a17:902:cec3:b0:1cf:7cfc:c3b7 with SMTP id d3-20020a170902cec300b001cf7cfcc3b7mr5703205plg.10.1700901801375; Sat, 25 Nov 2023 00:43:21 -0800 (PST) Received: from localhost ([157.82.205.15]) by smtp.gmail.com with UTF8SMTPSA id a3-20020a170902ecc300b001cfba46e407sm260609plh.129.2023.11.25.00.43.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 25 Nov 2023 00:43:21 -0800 (PST) From: Akihiko Odaki Cc: Andrii Nakryiko , Mykola Lysenko , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Shuah Khan , Nick Terrell , bpf@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Akihiko Odaki Subject: [PATCH bpf-next v5 3/3] selftests/bpf: Use pkg-config for libelf Date: Sat, 25 Nov 2023 17:42:52 +0900 Message-ID: <20231125084253.85025-4-akihiko.odaki@daynix.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231125084253.85025-1-akihiko.odaki@daynix.com> References: <20231125084253.85025-1-akihiko.odaki@daynix.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" When linking statically, libraries may require other dependencies to be included to ld flags. In particular, libelf may require libzstd. Use pkg-config to determine such dependencies. Signed-off-by: Akihiko Odaki --- tools/testing/selftests/bpf/Makefile | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests= /bpf/Makefile index 94825ef813d5..617ae55c3bb5 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -29,13 +29,17 @@ SAN_CFLAGS ?=3D SAN_LDFLAGS ?=3D $(SAN_CFLAGS) RELEASE ?=3D OPT_FLAGS ?=3D $(if $(RELEASE),-O2,-O0) + +LIBELF_CFLAGS :=3D $(shell $(PKG_CONFIG) libelf --cflags 2>/dev/null) +LIBELF_LIBS :=3D $(shell $(PKG_CONFIG) libelf --libs 2>/dev/null || echo -= lelf) + CFLAGS +=3D -g $(OPT_FLAGS) -rdynamic \ -Wall -Werror \ - $(GENFLAGS) $(SAN_CFLAGS) \ + $(GENFLAGS) $(SAN_CFLAGS) $(LIBELF_CFLAGS) \ -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \ -I$(TOOLSINCDIR) -I$(APIDIR) -I$(OUTPUT) LDFLAGS +=3D $(SAN_LDFLAGS) -LDLIBS +=3D -lelf -lz -lrt -lpthread +LDLIBS +=3D $(LIBELF_LIBS) -lz -lrt -lpthread =20 ifneq ($(LLVM),) # Silence some warnings when compiled with clang --=20 2.43.0