From patchwork Tue Dec 19 18:54:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Rostedt X-Patchwork-Id: 181224 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7300:24d3:b0:fb:cd0c:d3e with SMTP id r19csp2156693dyi; Tue, 19 Dec 2023 10:59:16 -0800 (PST) X-Google-Smtp-Source: AGHT+IGWjvePYoEbYV7gQLx5/WFTkigDdqBlMpwW6XFTUCq5PNPfIbB3vkH24ZI1ubEZh8aX46GD X-Received: by 2002:a50:8add:0:b0:553:5357:96ee with SMTP id k29-20020a508add000000b00553535796eemr2025565edk.45.1703012356100; Tue, 19 Dec 2023 10:59:16 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1703012356; cv=none; d=google.com; s=arc-20160816; b=KVr6AcSYd7fM7aNAJHL84Cwp+tapwnlv94HjkafppqYxb+/SuX73cmFqy1j7pE9B4i MHF7DIGyuu7mt2xw1Rk9x973xt7IXZUlrrZ+X1b68Tx79ulR36JlwhHQ0K2YXSw6vgrN aEPamK+vu3GMddPZvnZX9tyqoi1QuFXrDrcsBRZcaey9a9vNAiGTc94uL8vZGxG5LHjZ j5LjhFkmk+979nKCN9C/bl/zn3YxbLA1RSJj+rlJYAsOQiCaEVUiUAuaYNru7jjMEtuy 9/c4v2asU/YUDFxwwn5cONCY/BGlgIJ+EY/HI4/vyXHHuTkjX7YkEotMYIgOrj11bzou YCbA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:list-unsubscribe:list-subscribe:list-id:precedence :references:subject:cc:to:from:date:user-agent:message-id; bh=vQHf/4hqtqSSuAxwFL0ynHzOLF9mnsbEkydElNGhQwI=; fh=pL1t9p0RxD5qCgSUniSa3P4+XmpksJYPzX6TE+dndao=; b=UtyJz4t43bC4axx93MveJMpmZp5AAxeBdcPUfXN8zfzTAObvHrLCbETiycJ6xasOHM yGYNuGq3Jvprcow0VC+6jzdHPsIs6B0x+nO3as8742C6ZWiIRDpMAFN6p7LSY2m2+Pka LRChjlh2UTtgx95eiaaVUHyoTUBu+xMtRavBl3L2HCVNra1W4sU53jeeyCepy8gm0+O9 GEY0D+20z85nzdmVRZTk3UpwxzJQ5f2qc4PWJ5ejVxflqNbJnW+/U0SCzLoGRkPagGMS gKwi0WJCcU8+P87jiaSdYLudM5o0bHhQU+kPU3K/i9Atwe6FSJmzQJE26e6SXpCFx3G2 z/jA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-5847-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-kernel+bounces-5847-ouuuleilei=gmail.com@vger.kernel.org" Received: from am.mirrors.kernel.org (am.mirrors.kernel.org. [2604:1380:4601:e00::3]) by mx.google.com with ESMTPS id e10-20020a056402190a00b00550dcbb7dcesi9981412edz.362.2023.12.19.10.59.15 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Dec 2023 10:59:16 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-5847-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-5847-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-kernel+bounces-5847-ouuuleilei=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id 92DD41F25399 for ; Tue, 19 Dec 2023 18:59:15 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id EB41241C83; Tue, 19 Dec 2023 18:55:34 +0000 (UTC) X-Original-To: linux-kernel@vger.kernel.org Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 719AC3DBA0; Tue, 19 Dec 2023 18:55:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 44510C433CA; Tue, 19 Dec 2023 18:55:32 +0000 (UTC) Received: from rostedt by gandalf with local (Exim 4.97) (envelope-from ) id 1rFfGZ-00000003R6M-35m7; Tue, 19 Dec 2023 13:56:31 -0500 Message-ID: <20231219185631.520496304@goodmis.org> User-Agent: quilt/0.67 Date: Tue, 19 Dec 2023 13:54:28 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org Cc: Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton , Tzvetomir Stoyanov , Vincent Donnefort , Kent Overstreet Subject: [PATCH v5 14/15] ringbuffer/selftest: Add basic selftest to test changing subbuf order References: <20231219185414.474197117@goodmis.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1785737884145756664 X-GMAIL-MSGID: 1785737884145756664 From: "Steven Rostedt (Google)" Add a self test that will write into the trace buffer with differ trace sub buffer order sizes. Signed-off-by: Steven Rostedt (Google) --- .../ftrace/test.d/00basic/ringbuffer_order.tc | 95 +++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/00basic/ringbuffer_order.tc diff --git a/tools/testing/selftests/ftrace/test.d/00basic/ringbuffer_order.tc b/tools/testing/selftests/ftrace/test.d/00basic/ringbuffer_order.tc new file mode 100644 index 000000000000..ecbcc810e6c1 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/00basic/ringbuffer_order.tc @@ -0,0 +1,95 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Change the ringbuffer sub-buffer order +# requires: buffer_subbuf_order +# flags: instance + +get_buffer_data_size() { + sed -ne 's/^.*data.*size:\([0-9][0-9]*\).*/\1/p' events/header_page +} + +get_buffer_data_offset() { + sed -ne 's/^.*data.*offset:\([0-9][0-9]*\).*/\1/p' events/header_page +} + +get_event_header_size() { + type_len=`sed -ne 's/^.*type_len.*:[^0-9]*\([0-9][0-9]*\).*/\1/p' events/header_event` + time_len=`sed -ne 's/^.*time_delta.*:[^0-9]*\([0-9][0-9]*\).*/\1/p' events/header_event` + array_len=`sed -ne 's/^.*array.*:[^0-9]*\([0-9][0-9]*\).*/\1/p' events/header_event` + total_bits=$((type_len+time_len+array_len)) + total_bits=$((total_bits+7)) + echo $((total_bits/8)) +} + +get_print_event_buf_offset() { + sed -ne 's/^.*buf.*offset:\([0-9][0-9]*\).*/\1/p' events/ftrace/print/format +} + +event_header_size=`get_event_header_size` +print_header_size=`get_print_event_buf_offset` + +data_offset=`get_buffer_data_offset` + +marker_meta=$((event_header_size+print_header_size)) + +make_str() { + cnt=$1 + printf -- 'X%.0s' $(seq $cnt) +} + +write_buffer() { + size=$1 + + str=`make_str $size` + + # clear the buffer + echo > trace + + # write the string into the marker + echo $str > trace_marker + + echo $str +} + +test_buffer() { + orde=$1 + page_size=$((4096< buffer_subbuf_order + test_buffer $a +done + +echo $ORIG > buffer_subbuf_order +