From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4D481C63777 for ; Thu, 3 Dec 2020 06:03:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DB8E1205ED for ; Thu, 3 Dec 2020 06:03:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727901AbgLCGDL (ORCPT ); Thu, 3 Dec 2020 01:03:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46214 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726405AbgLCGDL (ORCPT ); Thu, 3 Dec 2020 01:03:11 -0500 Received: from mail-ed1-x542.google.com (mail-ed1-x542.google.com [IPv6:2a00:1450:4864:20::542]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 971DDC061A4E for ; Wed, 2 Dec 2020 22:02:29 -0800 (PST) Received: by mail-ed1-x542.google.com with SMTP id b73so779067edf.13 for ; Wed, 02 Dec 2020 22:02:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=5kZRP0rblXjRAgjiJm2OWZfEeveor1YlmfbqqNhqOPA=; b=qOnW8vxIdvWCSNSHNYY+QXM/ddNPym9fXtFudNcOziTeW/0yZjCLSFc4CJWT8nWZFE sbY/QJoMURnFND7/+tdhu0xpKVTWnqTfSx23F56tScLOVoyYkvtivNTaa8LSQ62Ly7sK UmtsEBsitGdt7g/7mHb8ytMDWocdIxPhsG9/ZGchrjng4dOPUqXisYHToB7PZjYTmnj4 B6V2MNEf4AamCbdwFXJ+B+sEp4Eo+kRI9N/xggUQQxrqzM4R4kwY8QaItauGEiMYtxkC B0RNWSvkM1VWk0/NgVNIGYI+2vYBmO0O9+KALALXB12h44TFE/ZAWeQ9qlN4RDArWDYL OEFg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=5kZRP0rblXjRAgjiJm2OWZfEeveor1YlmfbqqNhqOPA=; b=Yvi8bVZj6s/du4M8/xktUtOT12jWh1I9LE+QBMSUz/be4jVHlX9QzNlHnLXv0xz4z5 Ch/YSXMoRKnCR6JAs65HzT4u0PWneYXmzoXNvYXWIoSdowEKR3BwrUhgwCtDrgrW9lJ/ i86Zf3KnHodcntuOIhvawo5IpIV+GfcDAxJIOHTGkZVXS0AKIOXSVa2/i0vak2VYj8XK IP8+hBLGKnO3nKO+4OKT3WSfQ4sGfhCEtGpuPjgGLYoheUPSPOFLaHYn19X8ELlAjacL 8R/Klg2/UILpJsoEHoxPNsIKvSMbJwDxkWsjvNlpkdqB6nIq7efRXVzAhecwz7s0qdv/ mZUw== X-Gm-Message-State: AOAM533BeSqtwXoBfGBE/nPjo/+PMSDoS2TYqNQRMh4QK7uCLuCvUfe3 0tHJ6+oAR6L6AP4aOCwUocYL67/E8VgayDZk X-Google-Smtp-Source: ABdhPJz2VwsAiBIxOQ+KaHWo6u++aiYTMFSzqmaleBpXaWAcOHjG1jJBoBQnP/HJngIbLa2y8T4FcQ== X-Received: by 2002:aa7:cdd8:: with SMTP id h24mr1366794edw.153.1606975348326; Wed, 02 Dec 2020 22:02:28 -0800 (PST) Received: from oberon.zico.biz ([83.222.187.186]) by smtp.gmail.com with ESMTPSA id d9sm388629edk.86.2020.12.02.22.02.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Dec 2020 22:02:27 -0800 (PST) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH 0/5] Initial trace-cmd perf support Date: Thu, 3 Dec 2020 08:02:21 +0200 Message-Id: <20201203060226.476475-1-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org Initial implementation of trace-cmd perf subcommand. It collects call traces of a given PID and resolves collected addresses to function names. Still work in progress. What it has till now: - Configures and runs perf to collect call traces of the given PID. - Runs per CPU thread to read perf buffers and store traces in temp files. - Resolves collected addresses to function names (well, at least tries to do it). This includes also dynamic libraries, loaded runtime during the trace. What should be implemented: - Store the results in a trace.dat file. Should think about how to extend its format to hold these traces. - Visualise the call stack from trace.dat file with trace-cmd report and KernelShark. Tzvetomir Stoyanov (VMware) (5): trace-cmd: Internal refactoring of pid address map logic trace-cmd: Make read_file_string() non static trace-cmd: New internal APIs for reading ELF header trace-cmd: Add a new option in trace.dat file for the address to function name mapping [WIP] trace-cmd: Add new subcomand "trace-cmd perf" Makefile | 10 + .../include/private/trace-cmd-private.h | 5 + lib/trace-cmd/trace-input.c | 144 +++ tracecmd/Makefile | 2 + tracecmd/include/trace-local.h | 46 +- tracecmd/trace-cmd.c | 1 + tracecmd/trace-dump.c | 9 +- tracecmd/trace-obj-debug.c | 907 ++++++++++++++++++ tracecmd/trace-perf.c | 726 ++++++++++++++ tracecmd/trace-record.c | 107 +-- 10 files changed, 1841 insertions(+), 116 deletions(-) create mode 100644 tracecmd/trace-obj-debug.c create mode 100644 tracecmd/trace-perf.c -- 2.28.0