From patchwork Tue Jun 11 18:58:26 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaldo Carvalho de Melo X-Patchwork-Id: 166476 Delivered-To: patch@linaro.org Received: by 2002:a92:4782:0:0:0:0:0 with SMTP id e2csp2722205ilk; Tue, 11 Jun 2019 12:02:25 -0700 (PDT) X-Google-Smtp-Source: APXvYqx0JW/hMSFjHubCH44vLV+4VXutHdbhHdK69KmHEZXWt+KpUQN3gg45Y22Uu61gR14c4gOc X-Received: by 2002:a17:902:9a49:: with SMTP id x9mr57186818plv.282.1560279744967; Tue, 11 Jun 2019 12:02:24 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1560279744; cv=none; d=google.com; s=arc-20160816; b=SjMqYHQVuUIgldlYPdHHzFWIqbxvRMfOttPuEU2Wfu2D6sw2vCWMfas7KEL72HxvJT LIRvefOO/1zdel8a3p2pznbwbjYRjivqNIAt0FOedv6f9Y3MwFnSEKlw8STs5qGeE7+s yFJd9P4B1PGD3EsnGSVuF55ObbTxCY64OqlhOBhOvVf9mVOpZGVggzkIBouoJ0wG1lf5 BWkoNeDfO472Lp+z9Xy3UPtuLVorLP416LG7A24GGlugxp++dhKW36jswAgqKIQg2yvb kzKJMl803irtjvLQkwx6lcJRhMOYDJ7v/AbeANQyBkla1GwX9KljUNzp9obtztKGgPw2 sprA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=JfHltmV6oyLUBJyAU7jjVj+Ujf1ZVr6Zp47lTwXfhcU=; b=mKfVwO8gWoF4EQ3ELYGP/LLxgBY8z/1+Exs2SIdCcZnbASpyORmbJ1Qwmao9mNU3jH MUc5Sqws7gkVOttJY/0nlGIFxeTZ9yhsr14bo/JIg8nG1uov4DjDdFPzWl05yZd5w5cM KRKNtGl3wlv1EYkEZZpa4t+rYHIfPkLDpqKO2U/ekaRk33Ijxw71t6JNRNFkRcsxdmQ5 AjxRxnIpkqrlGqLVu1OpQ7C0Rk/hA2PRYUJ+y4ygR11z4UN0SjPJRTfkogQYMJU9z6TN goIc8lg8AeGIoUVUTYDLL5mxBrxhGUrfgDIZMmyknsuo7Xvj3SZ/k1hvSB/qBTJaPpQn oWwA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=PRolsfTu; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f16si13440653plr.340.2019.06.11.12.02.24; Tue, 11 Jun 2019 12:02:24 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=PRolsfTu; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404429AbfFKTCY (ORCPT + 30 others); Tue, 11 Jun 2019 15:02:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:38518 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2392376AbfFKTCX (ORCPT ); Tue, 11 Jun 2019 15:02:23 -0400 Received: from quaco.ghostprotocols.net (unknown [179.97.35.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8ED042183E; Tue, 11 Jun 2019 19:02:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560279742; bh=0QqK2QyuTErClmvoocneuDu3zXEc1BnQfm/OZFXX5d4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PRolsfTuLKg0f6cffJnti4xLZNJJrXHyMaYuSic9pR4Q1MQ20Um4GnsmS9kvaNbGa xNIx2O81A8Oc3jUlqynpgX8qax7YHMie+WHW0+Mm4CTa88hyhI+vKRIBoh8k130T4D wwLLQLDlW/xIgSL9ido2Ute3+M73XZZ9w+Xo096I= From: Arnaldo Carvalho de Melo To: Ingo Molnar , Thomas Gleixner Cc: Jiri Olsa , Namhyung Kim , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Mathieu Poirier , Leo Yan , Alexander Shishkin , Jiri Olsa , Peter Zijlstra , Suzuki Poulouse , coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, Arnaldo Carvalho de Melo Subject: [PATCH 40/85] perf cs-etm: Add handling of itrace start events Date: Tue, 11 Jun 2019 15:58:26 -0300 Message-Id: <20190611185911.11645-41-acme@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190611185911.11645-1-acme@kernel.org> References: <20190611185911.11645-1-acme@kernel.org> MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mathieu Poirier Add handling of ITRACE events in order to add the tid/pid of the executing process to the perf tools machine infrastructure. This information is later retrieved when a contextID packet is found in the trace stream. Signed-off-by: Mathieu Poirier Tested-by: Leo Yan Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Suzuki Poulouse Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/20190524173508.29044-5-mathieu.poirier@linaro.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/cs-etm.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) -- 2.20.1 diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index de488b43f440..0742c50fce46 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -1657,6 +1657,29 @@ static int cs_etm__process_timeless_queues(struct cs_etm_auxtrace *etm, return 0; } +static int cs_etm__process_itrace_start(struct cs_etm_auxtrace *etm, + union perf_event *event) +{ + struct thread *th; + + if (etm->timeless_decoding) + return 0; + + /* + * Add the tid/pid to the log so that we can get a match when + * we get a contextID from the decoder. + */ + th = machine__findnew_thread(etm->machine, + event->itrace_start.pid, + event->itrace_start.tid); + if (!th) + return -ENOMEM; + + thread__put(th); + + return 0; +} + static int cs_etm__process_event(struct perf_session *session, union perf_event *event, struct perf_sample *sample, @@ -1694,6 +1717,9 @@ static int cs_etm__process_event(struct perf_session *session, return cs_etm__process_timeless_queues(etm, event->fork.tid); + if (event->header.type == PERF_RECORD_ITRACE_START) + return cs_etm__process_itrace_start(etm, event); + return 0; }