From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1035144AbcIWOoE (ORCPT ); Fri, 23 Sep 2016 10:44:04 -0400 Received: from mga05.intel.com ([192.55.52.43]:14554 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1034755AbcIWOn4 (ORCPT ); Fri, 23 Sep 2016 10:43:56 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.30,381,1470726000"; d="scan'208";a="1044690232" From: Adrian Hunter To: Arnaldo Carvalho de Melo Cc: Jiri Olsa , Masami Hiramatsu , Mathieu Poirier , linux-kernel@vger.kernel.org Subject: [PATCH 13/16] perf intel-pt: Record address filter in AUXTRACE_INFO event Date: Fri, 23 Sep 2016 17:38:45 +0300 Message-Id: <1474641528-18776-14-git-send-email-adrian.hunter@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1474641528-18776-1-git-send-email-adrian.hunter@intel.com> References: <1474641528-18776-1-git-send-email-adrian.hunter@intel.com> Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The address filter is needed to help decode the trace, so store it in the AUXTRACE_INFO event. Signed-off-by: Adrian Hunter --- tools/perf/arch/x86/util/intel-pt.c | 51 ++++++++++++++++++++++++++++++++++--- tools/perf/util/intel-pt.h | 3 +-- 2 files changed, 48 insertions(+), 6 deletions(-) diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c index 18b21514c153..90fa2286edcf 100644 --- a/tools/perf/arch/x86/util/intel-pt.c +++ b/tools/perf/arch/x86/util/intel-pt.c @@ -62,6 +62,7 @@ struct intel_pt_recording { size_t snapshot_ref_buf_size; int snapshot_ref_cnt; struct intel_pt_snapshot_ref *snapshot_refs; + size_t priv_size; }; static int intel_pt_parse_terms_with_default(struct list_head *formats, @@ -273,11 +274,37 @@ intel_pt_pmu_default_config(struct perf_pmu *intel_pt_pmu) return attr; } +static const char *intel_pt_find_filter(struct perf_evlist *evlist, + struct perf_pmu *intel_pt_pmu) +{ + struct perf_evsel *evsel; + + evlist__for_each_entry(evlist, evsel) { + if (evsel->attr.type == intel_pt_pmu->type) + return evsel->filter; + } + + return NULL; +} + +static size_t intel_pt_filter_bytes(const char *filter) +{ + size_t len = filter ? strlen(filter) : 0; + + return len ? roundup(len + 1, 8) : 0; +} + static size_t -intel_pt_info_priv_size(struct auxtrace_record *itr __maybe_unused, - struct perf_evlist *evlist __maybe_unused) +intel_pt_info_priv_size(struct auxtrace_record *itr, struct perf_evlist *evlist) { - return INTEL_PT_AUXTRACE_PRIV_SIZE; + struct intel_pt_recording *ptr = + container_of(itr, struct intel_pt_recording, itr); + const char *filter = intel_pt_find_filter(evlist, ptr->intel_pt_pmu); + + ptr->priv_size = (INTEL_PT_AUXTRACE_PRIV_MAX * sizeof(u64)) + + intel_pt_filter_bytes(filter); + + return ptr->priv_size; } static void intel_pt_tsc_ctc_ratio(u32 *n, u32 *d) @@ -303,9 +330,12 @@ static int intel_pt_info_fill(struct auxtrace_record *itr, u64 tsc_bit, mtc_bit, mtc_freq_bits, cyc_bit, noretcomp_bit; u32 tsc_ctc_ratio_n, tsc_ctc_ratio_d; unsigned long max_non_turbo_ratio; + size_t filter_str_len; + const char *filter; + u64 *info; int err; - if (priv_size != INTEL_PT_AUXTRACE_PRIV_SIZE) + if (priv_size != ptr->priv_size) return -EINVAL; intel_pt_parse_terms(&intel_pt_pmu->format, "tsc", &tsc_bit); @@ -322,6 +352,9 @@ static int intel_pt_info_fill(struct auxtrace_record *itr, "%lu", &max_non_turbo_ratio) != 1) max_non_turbo_ratio = 0; + filter = intel_pt_find_filter(session->evlist, ptr->intel_pt_pmu); + filter_str_len = filter ? strlen(filter) : 0; + if (!session->evlist->nr_mmaps) return -EINVAL; @@ -357,6 +390,16 @@ static int intel_pt_info_fill(struct auxtrace_record *itr, auxtrace_info->priv[INTEL_PT_TSC_CTC_D] = tsc_ctc_ratio_d; auxtrace_info->priv[INTEL_PT_CYC_BIT] = cyc_bit; auxtrace_info->priv[INTEL_PT_MAX_NONTURBO_RATIO] = max_non_turbo_ratio; + auxtrace_info->priv[INTEL_PT_FILTER_STR_LEN] = filter_str_len; + + info = &auxtrace_info->priv[INTEL_PT_FILTER_STR_LEN] + 1; + + if (filter_str_len) { + size_t len = intel_pt_filter_bytes(filter); + + strncpy((char *)info, filter, len); + info += len >> 3; + } return 0; } diff --git a/tools/perf/util/intel-pt.h b/tools/perf/util/intel-pt.h index 8b8356233e6a..e13b14e5a37b 100644 --- a/tools/perf/util/intel-pt.h +++ b/tools/perf/util/intel-pt.h @@ -35,11 +35,10 @@ enum { INTEL_PT_TSC_CTC_D, INTEL_PT_CYC_BIT, INTEL_PT_MAX_NONTURBO_RATIO, + INTEL_PT_FILTER_STR_LEN, INTEL_PT_AUXTRACE_PRIV_MAX, }; -#define INTEL_PT_AUXTRACE_PRIV_SIZE (INTEL_PT_AUXTRACE_PRIV_MAX * sizeof(u64)) - struct auxtrace_record; struct perf_tool; union perf_event; -- 1.9.1