From nobody Thu Dec 18 08:36:25 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 EC175EE49B3 for ; Thu, 24 Aug 2023 04:14:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239073AbjHXEOh (ORCPT ); Thu, 24 Aug 2023 00:14:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45528 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240059AbjHXEOD (ORCPT ); Thu, 24 Aug 2023 00:14:03 -0400 Received: from mail-yw1-x1149.google.com (mail-yw1-x1149.google.com [IPv6:2607:f8b0:4864:20::1149]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 545441709 for ; Wed, 23 Aug 2023 21:13:54 -0700 (PDT) Received: by mail-yw1-x1149.google.com with SMTP id 00721157ae682-58daaa2ba65so81977167b3.1 for ; Wed, 23 Aug 2023 21:13:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1692850433; x=1693455233; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=Ya/35txba4PAMPm8mMBnt/qSzsiHQTJEwaXtI6KarCw=; b=3VJfTM8kygD1T1PhmetM3PcBE1gQOcO3+ThUAN3fhGzT28M9PgychNxNpP8peY3l/g k9+S2Se3TL+up6K3bfFmxk1xOnuF1cgcM2yIFbQvyrLPjU8Ft0xRNjCskCm0lsM288DD ACZrScqJDpli5CCdWIHkT1NdEb/pj6wefraP7EBz5lTS3s24jmfIAGCARmB6Q1uYIL2J deXcbqUmoSWMIDh83MmYyXKLdpouS5M2bMGZqtEIRfHnfE6+mhzycoAS7dAA1WCN9LkB Tsrb5E1MJTU1BKSMcQuOyF7txVS9AK2kogzSobXJyFlhzxLCuQbeP4sJpc758bYbmEt0 A6Vg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692850433; x=1693455233; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Ya/35txba4PAMPm8mMBnt/qSzsiHQTJEwaXtI6KarCw=; b=DFVwrl580P4IVSsLm8Fq0ZiY26lmRg7UsLiThRIEgl5L/Fax686w3f8Q5Wq6yEbLxf jLGuh9jW42dtvj0TIKsBxLX9oJFlIyx7ZITI/n3P7IJxfoRXWiSrLa72IMerKU48RYEz DBzVflEuHam09uI15rbTeUh4UBlRD4H5qTiMg4JW9ZjckIEmOTWDX9IeePqqIspufkOl jyr6gtElTlhwO4yXP+7S6ibJ6ZWFb6vMG06oQgLW4jNRG+5lfhv6o1iCcV8tXIp9fX1m JvcrGleWdRMnTown44U2ZLQOEnOO2W+yKoSzEM0p7Vxi6LifO7Hc1IkRuFLX68yHpznY JksQ== X-Gm-Message-State: AOJu0YwPvAaZH3nCCs7bt0zFGlKC6nMX7Ag2CQEHZ0eSYAdcybbRYlER yH0uLQLmRbYtLzSWPut+hXlUis3dhmYB X-Google-Smtp-Source: AGHT+IE7hk7aF5+o9K3xOuDaJwbkY2h6VIkgNVR7fuUCCjnbEaQYcnKDvLAmGG0IIa2nrQLjSHBXq2VjRk1S X-Received: from irogers.svl.corp.google.com ([2620:15c:2a3:200:fbb9:d9e7:7405:2651]) (user=irogers job=sendgmr) by 2002:a81:ad43:0:b0:576:af04:3495 with SMTP id l3-20020a81ad43000000b00576af043495mr201866ywk.9.1692850433482; Wed, 23 Aug 2023 21:13:53 -0700 (PDT) Date: Wed, 23 Aug 2023 21:13:17 -0700 In-Reply-To: <20230824041330.266337-1-irogers@google.com> Message-Id: <20230824041330.266337-6-irogers@google.com> Mime-Version: 1.0 References: <20230824041330.266337-1-irogers@google.com> X-Mailer: git-send-email 2.42.0.rc1.204.g551eb34607-goog Subject: [PATCH v2 05/18] perf parse-events: Improve error message for double setting From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Ian Rogers , Adrian Hunter , James Clark , Kan Liang , John Garry , Kajol Jain , Jing Zhang , Ravi Bangoria , Rob Herring , Gaosheng Cui , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Double setting information for an event would produce an error message associated with the PMU rather than the term that was double setting. Improve the error message to be on the term. Before: ``` $ perf stat -e 'cpu/inst_retired.any,inst_retired.any/' true event syntax error: 'cpu/inst_retired.any,inst_retired.any/' \___ Bad event or PMU Unabled to find PMU or event on a PMU of 'cpu' Run 'perf list' for a list of valid events ``` After: ``` $ perf stat -e 'cpu/inst_retired.any,inst_retired.any/' true event syntax error: '..etired.any,inst_retired.any/' \___ Bad event or PMU Unabled to find PMU or event on a PMU of 'cpu' Initial error: event syntax error: '..etired.any,inst_retired.any/' \___ Attempt to set event's scale twice Run 'perf list' for a list of valid events ``` Signed-off-by: Ian Rogers --- tools/perf/util/parse-events.c | 2 +- tools/perf/util/pmu.c | 34 +++++++++++++++++++++++++++------- tools/perf/util/pmu.h | 2 +- 3 files changed, 29 insertions(+), 9 deletions(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 7cad82a9f578..781747bedc3e 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -1348,7 +1348,7 @@ int parse_events_add_pmu(struct parse_events_state *p= arse_state, return evsel ? 0 : -ENOMEM; } =20 - if (!parse_state->fake_pmu && perf_pmu__check_alias(pmu, head_config, &in= fo)) + if (!parse_state->fake_pmu && perf_pmu__check_alias(pmu, head_config, &in= fo, err)) return -EINVAL; =20 if (verbose > 1) { diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index d91367155e29..0c82bbeea7d6 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -1443,17 +1443,33 @@ static struct perf_pmu_alias *pmu_find_alias(struct= perf_pmu *pmu, =20 =20 static int check_info_data(struct perf_pmu_alias *alias, - struct perf_pmu_info *info) + struct perf_pmu_info *info, + struct parse_events_error *err, + int column) { /* * Only one term in event definition can * define unit, scale and snapshot, fail * if there's more than one. */ - if ((info->unit && alias->unit[0]) || - (info->scale && alias->scale) || - (info->snapshot && alias->snapshot)) + if (info->unit && alias->unit[0]) { + parse_events_error__handle(err, column, + strdup("Attempt to set event's unit twice"), + NULL); + return -EINVAL; + } + if (info->scale && alias->scale) { + parse_events_error__handle(err, column, + strdup("Attempt to set event's scale twice"), + NULL); + return -EINVAL; + } + if (info->snapshot && alias->snapshot) { + parse_events_error__handle(err, column, + strdup("Attempt to set event snapshot twice"), + NULL); return -EINVAL; + } =20 if (alias->unit[0]) info->unit =3D alias->unit; @@ -1472,7 +1488,7 @@ static int check_info_data(struct perf_pmu_alias *ali= as, * defined for the alias */ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_ter= ms, - struct perf_pmu_info *info) + struct perf_pmu_info *info, struct parse_events_error *err) { struct parse_events_term *term, *h; struct perf_pmu_alias *alias; @@ -1493,10 +1509,14 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, str= uct list_head *head_terms, if (!alias) continue; ret =3D pmu_alias_terms(alias, &term->list); - if (ret) + if (ret) { + parse_events_error__handle(err, term->err_term, + strdup("Failure to duplicate terms"), + NULL); return ret; + } =20 - ret =3D check_info_data(alias, info); + ret =3D check_info_data(alias, info, err, term->err_term); if (ret) return ret; =20 diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h index f37e3d75094f..03211de345c1 100644 --- a/tools/perf/util/pmu.h +++ b/tools/perf/util/pmu.h @@ -185,7 +185,7 @@ int perf_pmu__config_terms(struct perf_pmu *pmu, __u64 perf_pmu__format_bits(struct perf_pmu *pmu, const char *name); int perf_pmu__format_type(struct perf_pmu *pmu, const char *name); int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_ter= ms, - struct perf_pmu_info *info); + struct perf_pmu_info *info, struct parse_events_error *err); int perf_pmu__find_event(struct perf_pmu *pmu, const char *event, void *st= ate, pmu_event_callback cb); =20 int perf_pmu__format_parse(struct perf_pmu *pmu, int dirfd, bool eager_loa= d); --=20 2.42.0.rc1.204.g551eb34607-goog