From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 42958360 for ; Sat, 24 Jun 2023 00:27:31 +0000 (UTC) Received: from mail-yw1-x114a.google.com (mail-yw1-x114a.google.com [IPv6:2607:f8b0:4864:20::114a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 45F1726A9 for ; Fri, 23 Jun 2023 17:27:25 -0700 (PDT) Received: by mail-yw1-x114a.google.com with SMTP id 00721157ae682-565ba5667d5so15300167b3.0 for ; Fri, 23 Jun 2023 17:27:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1687566444; x=1690158444; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=cPTlo5sw6qGJhy7W606O6MQ7uT0NiNLSzLEUW45mEMM=; b=k+q6Jii5JGpSb6F4X/RcFeITIJYPuMQ1PO9mDPzvSGC/fkp5Zgaj23F1CN18aX6kU4 qkp1Ox5UxAeuGmlQvTA9tA0a8EfXOZ0FhjF4xFMqz7xPYOiH+w48BzvIucOScvAc44z1 SHulTRrKf0k7jVFhio7b512ncPLaf7qBqqE8XzpnaOsKv4iEJCWBz798RdA919+bzn/a podgA4/rmZvOWQhgqdVCMdsaZrNBcj/SlfabnUSvUcBFZ08qPbhT+yk1A+Myi5GWDZA5 Cn8V/BLwLcftyEckrd2pA3GAtOpS9mFEiAfdBiHg1PvA3NDjtkDmZwbGgGzbMg6zeLfK MbbQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687566444; x=1690158444; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=cPTlo5sw6qGJhy7W606O6MQ7uT0NiNLSzLEUW45mEMM=; b=VRg0LV4RET3RKImsG2RsgiU8G1I16q8+Pv5hTL0Yut8LuCHV3y94MlrL18DvYZ573Q 308MNy93JldPeNQbzLZsbOJXU8Cvn6GQj48p4zTV3gy80f4PsRYHo7IOuu3EqbxBXLic M7YVGkeCfsPBgyPBxf4aLD8Iu4rIQyEwB8jvDQ5eXweaR9qJJCca5dPNroTIOND8IqpQ GH1TQ7e5Yf5XIDJVD4aGeOzIzLja2yBhAnUVk9fP/pHmJlkpjSmAZ7d0/0FbrozqQuOq l58wzs/MckLjDLvoYXF7ZPDELFTtAspBGt2ZyOkUrMmhbbl3QRozN1op9HrcOB9FyEbg cxNQ== X-Gm-Message-State: AC+VfDxjueWKiZEvcgCzIsi2ZPPkx3sDQ2Wgzy68EcpGcW2r5OgGq/wj vNWjzqBZ3emRa4e2BeljVfHD4F96a8a4 X-Google-Smtp-Source: ACHHUZ4Grszgqzm2u7AJaSzDsIqkZA26gyyKMpBn+t1La9762cl67RfO9iaIiWlvf8QQa25/X/PulsBkDGkh X-Received: from meowing-l.c.googlers.com ([fda3:e722:ac3:cc00:24:72f4:c0a8:3eba]) (user=maskray job=sendgmr) by 2002:a5b:bc9:0:b0:bc4:3e2f:7641 with SMTP id c9-20020a5b0bc9000000b00bc43e2f7641mr4120749ybr.4.1687566444575; Fri, 23 Jun 2023 17:27:24 -0700 (PDT) Date: Sat, 24 Jun 2023 00:27:08 +0000 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Message-ID: <20230624002708.1907962-1-maskray@google.com> Subject: [PATCH] perf: Replace deprecated -target with --target= for Clang From: Fangrui Song To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , linux-perf-users@vger.kernel.org Cc: linux-kernel@vger.kernel.org, bpf@vger.kernel.org, llvm@lists.linux.dev, Fangrui Song Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-9.6 required=5.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net -target has been deprecated since Clang 3.4 in 2013. Use the preferred --target=bpf form instead. This matches how we use --target= in scripts/Makefile.clang. Link: https://github.com/llvm/llvm-project/commit/274b6f0c87a6a1798de0a68135afc7f95def6277 Signed-off-by: Fangrui Song --- tools/perf/Documentation/perf-config.txt | 2 +- tools/perf/Makefile.perf | 4 ++-- tools/perf/util/llvm-utils.c | 4 ++-- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt index e56ae54805a8..1478068ad5dd 100644 --- a/tools/perf/Documentation/perf-config.txt +++ b/tools/perf/Documentation/perf-config.txt @@ -669,7 +669,7 @@ llvm.*:: "$CLANG_OPTIONS $PERF_BPF_INC_OPTIONS $KERNEL_INC_OPTIONS " \ "-Wno-unused-value -Wno-pointer-sign " \ "-working-directory $WORKING_DIR " \ - "-c \"$CLANG_SOURCE\" -target bpf $CLANG_EMIT_LLVM -O2 -o - $LLVM_OPTIONS_PIPE" + "-c \"$CLANG_SOURCE\" --target=bpf $CLANG_EMIT_LLVM -O2 -o - $LLVM_OPTIONS_PIPE" llvm.clang-opt:: Options passed to clang. diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index f48794816d82..1b752e0a3723 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -1057,7 +1057,7 @@ $(SKEL_TMP_OUT) $(LIBAPI_OUTPUT) $(LIBBPF_OUTPUT) $(LIBPERF_OUTPUT) $(LIBSUBCMD_ ifdef BUILD_BPF_SKEL BPFTOOL := $(SKEL_TMP_OUT)/bootstrap/bpftool # Get Clang's default includes on this system, as opposed to those seen by -# '-target bpf'. This fixes "missing" files on some architectures/distros, +# '--target=bpf'. This fixes "missing" files on some architectures/distros, # such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc. # # Use '-idirafter': Don't interfere with include mechanics except where the @@ -1081,7 +1081,7 @@ $(BPFTOOL): | $(SKEL_TMP_OUT) OUTPUT=$(SKEL_TMP_OUT)/ bootstrap $(SKEL_TMP_OUT)/%.bpf.o: util/bpf_skel/%.bpf.c $(LIBBPF) | $(SKEL_TMP_OUT) - $(QUIET_CLANG)$(CLANG) -g -O2 -target bpf -Wall -Werror $(BPF_INCLUDE) $(TOOLS_UAPI_INCLUDE) \ + $(QUIET_CLANG)$(CLANG) -g -O2 --target=bpf -Wall -Werror $(BPF_INCLUDE) $(TOOLS_UAPI_INCLUDE) \ -c $(filter util/bpf_skel/%.bpf.c,$^) -o $@ $(SKEL_OUT)/%.skel.h: $(SKEL_TMP_OUT)/%.bpf.o | $(BPFTOOL) diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c index 4e8e243a6e4b..c6c9c2228578 100644 --- a/tools/perf/util/llvm-utils.c +++ b/tools/perf/util/llvm-utils.c @@ -25,7 +25,7 @@ "$CLANG_OPTIONS $PERF_BPF_INC_OPTIONS $KERNEL_INC_OPTIONS " \ "-Wno-unused-value -Wno-pointer-sign " \ "-working-directory $WORKING_DIR " \ - "-c \"$CLANG_SOURCE\" -target bpf $CLANG_EMIT_LLVM -g -O2 -o - $LLVM_OPTIONS_PIPE" + "-c \"$CLANG_SOURCE\" --target=bpf $CLANG_EMIT_LLVM -g -O2 -o - $LLVM_OPTIONS_PIPE" struct llvm_param llvm_param = { .clang_path = "clang", @@ -569,7 +569,7 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf, pr_err("ERROR:\tunable to compile %s\n", path); pr_err("Hint:\tCheck error message shown above.\n"); pr_err("Hint:\tYou can also pre-compile it into .o using:\n"); - pr_err(" \t\tclang -target bpf -O2 -c %s\n", path); + pr_err(" \t\tclang --target=bpf -O2 -c %s\n", path); pr_err(" \twith proper -I and -D options.\n"); goto errout; } -- 2.41.0.178.g377b9f9a00-goog