From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (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 021251BBBF1; Tue, 22 Oct 2024 16:00:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729612843; cv=none; b=HgiGeiPEEVGHxXrPH43McR4pMTKt4pcPPTET3PydZ8IlYBwrvJvWuv2wOg3Ml5l3LBz4m1drseyOKfeVGkWX7eMZT8jti5wmetqbjb9zPFVXqDXR+X48NV2eDJxzhsxfR2NGiSeI960zbMoBuKUsHjixg+mBRP0qL1FJchA3ba4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729612843; c=relaxed/simple; bh=KWespt12ZpxgPDw6K3joQvQ6R1T4arlW4Liwkh6KyJc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XbIdIwOKXhIXoWcVmHut3Clfr6bmrX1zE3UDTallQhWuaaO2kw6SeY5YlMAkzyQRyTqlHrLMb9QFaoiA8Xtu5QyEWEChGV81SD1A31708oTIpRHZgB1ID/LYdGarK4aUNRqfKL21M/5Q7aphFZqcGBQOyQXbXZNwE1v5Oj+eJz4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=O4SnZaLA; arc=none smtp.client-ip=192.198.163.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="O4SnZaLA" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1729612841; x=1761148841; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=KWespt12ZpxgPDw6K3joQvQ6R1T4arlW4Liwkh6KyJc=; b=O4SnZaLA3OFSIW2Y6Onu0p1my/J6iTVQYBed+WX8/5HjQjnVZEaW2/mo ozwnsmQFErO68e+GNQDLakCbx9OM/2PqrNGk7vRsqcG9Ig5xScIMT3bwR /eECt2yCpHYJIj060AB5ApJejExkf++fjFOh0CpQOmCdXv5+TwSunCgYa gcwcBYQxjtEvYjCYE3drxDiIANTR4rMXg+/vXGh0sbQm6Wg79sMQXMPHt mxlZCBRGicvZ30oq+3Xds/OiOaDqAya2L9nWTKpRezhqsx1TWa6Z56fI9 ptQuu9FStwaCa7yov5iTcnP7t3mdqey8JLxFRwgBWzjtj8r3S6zup69Th Q==; X-CSE-ConnectionGUID: P3HqjIA5TGK92DYc85v0/w== X-CSE-MsgGUID: 2IK6Ok7hQYGtNZ6oQ83Hfg== X-IronPort-AV: E=McAfee;i="6700,10204,11233"; a="29271044" X-IronPort-AV: E=Sophos;i="6.11,223,1725346800"; d="scan'208";a="29271044" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Oct 2024 09:00:40 -0700 X-CSE-ConnectionGUID: 3WQCNMrzRIa/F8k5So1wvw== X-CSE-MsgGUID: Y/SzASDFTe6WCIqjeAQATQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,223,1725346800"; d="scan'208";a="79858679" Received: from ahunter6-mobl1.ger.corp.intel.com (HELO ahunter-VirtualBox.ger.corp.intel.com) ([10.246.16.81]) by orviesa010-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Oct 2024 09:00:30 -0700 From: Adrian Hunter To: Peter Zijlstra Cc: Ingo Molnar , Mark Rutland , Alexander Shishkin , Heiko Carstens , Thomas Richter , Hendrik Brueckner , Suzuki K Poulose , Mike Leach , James Clark , coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, Yicong Yang , Jonathan Cameron , Will Deacon , Arnaldo Carvalho de Melo , Jiri Olsa , Namhyung Kim , Ian Rogers , Andi Kleen , Thomas Gleixner , Borislav Petkov , Dave Hansen , x86@kernel.org, H Peter Anvin , Kan Liang , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Subject: [PATCH V14 07/11] perf tools: Parse aux-action Date: Tue, 22 Oct 2024 18:59:13 +0300 Message-ID: <20241022155920.17511-8-adrian.hunter@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241022155920.17511-1-adrian.hunter@intel.com> References: <20241022155920.17511-1-adrian.hunter@intel.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Content-Transfer-Encoding: 8bit Add parsing for aux-action to accept "pause", "resume" or "start-paused" values. "start-paused" is valid only for AUX area events. "pause" and "resume" are valid only for events grouped with an AUX area event as the group leader. However, like with aux-output, the events will be automatically grouped if they are not currently in a group, and the AUX area event precedes the other events. Signed-off-by: Adrian Hunter Acked-by: Ian Rogers Reviewed-by: Andi Kleen --- Changes in V8: Fix clang warning: util/auxtrace.c:821:7: error: missing field 'aux_action' initializer [-Werror,-Wmissing-field-initializers] 821 | {NULL}, | ^ tools/perf/Documentation/perf-record.txt | 4 ++ tools/perf/builtin-record.c | 4 +- tools/perf/util/auxtrace.c | 67 ++++++++++++++++++++++-- tools/perf/util/auxtrace.h | 6 ++- tools/perf/util/evsel.c | 1 + 5 files changed, 74 insertions(+), 8 deletions(-) diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 242223240a08..80686d590de2 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -68,6 +68,10 @@ OPTIONS like this: name=\'CPU_CLK_UNHALTED.THREAD:cmask=0x1\'. - 'aux-output': Generate AUX records instead of events. This requires that an AUX area event is also provided. + - 'aux-action': "pause" or "resume" to pause or resume an AUX + area event (the group leader) when this event occurs. + "start-paused" on an AUX area event itself, will + start in a paused state. - 'aux-sample-size': Set sample size for AUX area sampling. If the '--aux-sample' option has been used, set aux-sample-size=0 to disable AUX area sampling for the event. diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index adbaf80b398c..a7afde2fbebc 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -860,7 +860,9 @@ static int record__auxtrace_init(struct record *rec) if (err) return err; - auxtrace_regroup_aux_output(rec->evlist); + err = auxtrace_parse_aux_action(rec->evlist); + if (err) + return err; return auxtrace_parse_filters(rec->evlist); } diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index ca8682966fae..4d1633d87eff 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -810,19 +810,76 @@ int auxtrace_parse_sample_options(struct auxtrace_record *itr, return auxtrace_validate_aux_sample_size(evlist, opts); } -void auxtrace_regroup_aux_output(struct evlist *evlist) +static struct aux_action_opt { + const char *str; + u32 aux_action; + bool aux_event_opt; +} aux_action_opts[] = { + {"start-paused", BIT(0), true}, + {"pause", BIT(1), false}, + {"resume", BIT(2), false}, + {.str = NULL}, +}; + +static const struct aux_action_opt *auxtrace_parse_aux_action_str(const char *str) +{ + const struct aux_action_opt *opt; + + if (!str) + return NULL; + + for (opt = aux_action_opts; opt->str; opt++) + if (!strcmp(str, opt->str)) + return opt; + + return NULL; +} + +int auxtrace_parse_aux_action(struct evlist *evlist) { - struct evsel *evsel, *aux_evsel = NULL; struct evsel_config_term *term; + struct evsel *aux_evsel = NULL; + struct evsel *evsel; evlist__for_each_entry(evlist, evsel) { - if (evsel__is_aux_event(evsel)) + bool is_aux_event = evsel__is_aux_event(evsel); + const struct aux_action_opt *opt; + + if (is_aux_event) aux_evsel = evsel; - term = evsel__get_config_term(evsel, AUX_OUTPUT); + term = evsel__get_config_term(evsel, AUX_ACTION); + if (!term) { + if (evsel__get_config_term(evsel, AUX_OUTPUT)) + goto regroup; + continue; + } + opt = auxtrace_parse_aux_action_str(term->val.str); + if (!opt) { + pr_err("Bad aux-action '%s'\n", term->val.str); + return -EINVAL; + } + if (opt->aux_event_opt && !is_aux_event) { + pr_err("aux-action '%s' can only be used with AUX area event\n", + term->val.str); + return -EINVAL; + } + if (!opt->aux_event_opt && is_aux_event) { + pr_err("aux-action '%s' cannot be used for AUX area event itself\n", + term->val.str); + return -EINVAL; + } + evsel->core.attr.aux_action = opt->aux_action; +regroup: /* If possible, group with the AUX event */ - if (term && aux_evsel) + if (aux_evsel) evlist__regroup(evlist, aux_evsel, evsel); + if (!evsel__is_aux_event(evsel__leader(evsel))) { + pr_err("Events with aux-action must have AUX area event group leader\n"); + return -EINVAL; + } } + + return 0; } struct auxtrace_record *__weak diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h index a1895a4f530b..208c15be9221 100644 --- a/tools/perf/util/auxtrace.h +++ b/tools/perf/util/auxtrace.h @@ -579,7 +579,7 @@ int auxtrace_parse_snapshot_options(struct auxtrace_record *itr, int auxtrace_parse_sample_options(struct auxtrace_record *itr, struct evlist *evlist, struct record_opts *opts, const char *str); -void auxtrace_regroup_aux_output(struct evlist *evlist); +int auxtrace_parse_aux_action(struct evlist *evlist); int auxtrace_record__options(struct auxtrace_record *itr, struct evlist *evlist, struct record_opts *opts); @@ -800,8 +800,10 @@ int auxtrace_parse_sample_options(struct auxtrace_record *itr __maybe_unused, } static inline -void auxtrace_regroup_aux_output(struct evlist *evlist __maybe_unused) +int auxtrace_parse_aux_action(struct evlist *evlist __maybe_unused) { + pr_err("AUX area tracing not supported\n"); + return -EINVAL; } static inline diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 8f7932cd5550..95593b55d9a7 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -1105,6 +1105,7 @@ static void evsel__apply_config_terms(struct evsel *evsel, attr->aux_output = term->val.aux_output ? 1 : 0; break; case EVSEL__CONFIG_TERM_AUX_ACTION: + /* Already applied by auxtrace */ break; case EVSEL__CONFIG_TERM_AUX_SAMPLE_SIZE: /* Already applied by auxtrace */ -- 2.43.0