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=-10.8 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 B5007C56202 for ; Wed, 25 Nov 2020 10:44:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 53642206E0 for ; Wed, 25 Nov 2020 10:44:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="vFHrmp1X" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729074AbgKYKo1 (ORCPT ); Wed, 25 Nov 2020 05:44:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33098 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727724AbgKYKo0 (ORCPT ); Wed, 25 Nov 2020 05:44:26 -0500 Received: from mail-wr1-x443.google.com (mail-wr1-x443.google.com [IPv6:2a00:1450:4864:20::443]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 79359C0613D4 for ; Wed, 25 Nov 2020 02:44:26 -0800 (PST) Received: by mail-wr1-x443.google.com with SMTP id 64so1395823wra.11 for ; Wed, 25 Nov 2020 02:44:26 -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=qkLUVknIRW1cGDO/G471gMABATE8oBgsFR39hwPr96s=; b=vFHrmp1XRC9hVH+dLJZ1iJvxt8MjnkAWII8V8+QywBG02llpQDwvrwhY1IqNl1Gh1P mtQbtOr44x7fhCHKzoIk5N9uI6iR4pCE8m7U4oUxmZJZ5ghETQJgRTEf4ZKKjnCBBA9C oCGVGTrIQF7ufOBX8OLnl5s/MwWGw6b268jT8NnDN8BYKDXbw6DLk2dfvwbcnYBP5Pg6 gFBcojoJztv9yElvxXq2iOXT1a2SxIG01RARUu1805gJ3Cd8yzcWC2U3SpXmDZNyCIMp ybKkgbtNzmYoRjS5gfuO82VX+DaUEFIi5SUzv/t2iJiDp31sl9svYiSeGgdEyZDX6r0b uGiQ== 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=qkLUVknIRW1cGDO/G471gMABATE8oBgsFR39hwPr96s=; b=KnmHV5MGVRrw12CiL/6qCkRQsXhbASLeWdegX3lr8DzgFKYCxV5VPgR9kNwpbs1yNj HIM87EKJkKGmrrMzeHFk/p0LnGf1F9JOSMO1nlW+tmY5XWVcTEKS8M3K7MM/DXPTtGdg 8aja9IG07DtCLoTCAtZ6Y4rYw/N9ZxtLYaaL5wI3PBt8/fE3mHFn19GtVrSAmdEhljnh 1AbPlbj0mQ1FM2mu43+/pY/ulR36QNO3NL+9GjvYQfhed2oQ4Uv7zXB48jM1n/N5s65j VcKBwr3dRUK4cdtYwDreJBoJ0D8qVrXgarf7YAkilaxBKnYpkLUIx+Bmt4tYlkpazeT4 mO5g== X-Gm-Message-State: AOAM530NZDjRv8AdQR2O2l+T9vl5t8bdK6LgnjyNbEp/cFWcibfcmKI9 xQIdmOOl3fc9FgXA6ROm89HPjFwngRWff+t7 X-Google-Smtp-Source: ABdhPJyiOSyLPVbxfHuht4fh/+Ko7BZ1Md1IbMoGYBH6MhqcX9Y6+LzzqvkJs2iqW0JNr1qnu8g8jQ== X-Received: by 2002:adf:9b95:: with SMTP id d21mr3366789wrc.335.1606301065183; Wed, 25 Nov 2020 02:44:25 -0800 (PST) Received: from oberon.zico.biz ([83.222.187.186]) by smtp.gmail.com with ESMTPSA id s4sm4026243wro.10.2020.11.25.02.44.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Nov 2020 02:44:24 -0800 (PST) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH v3 0/3] Initial trace-cmd support for ftrace uprobes Date: Wed, 25 Nov 2020 12:44:19 +0200 Message-Id: <20201125104422.823216-1-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 Ftrace supports uprobes - trace events on user space applications. Trace-cmd cannot configure uprobes, in order to support it this new functionality is introduced: - Function name to file offset mapping, this information is extracted from the dwarf and ELF headers in the binary file. - New options are added to "trace-cmd record" for setting a uprobe on given file and the libraries it depends on: --uprobe file:function --uprobe-ret file:function --libs --no-libs [ v3 changes: - Added DEBUG_INTERNALS local define in trace-obj-debug.c, for printing debug information about resolving process. - Replaced function name regex match with simple wildcards match. - Implemented functionality to search for functions in the libraries that the given application depends on. - Added --libs and --no-libs arguments to trace-cmd record. v2 changes: - Renamed some internal trace-cmd functions, to not overlap the bfd library namespace. Suggested by Steven Rostedt. ] Tzvetomir Stoyanov (VMware) (3): trace-cmd: Internal refactoring of pid address map logic trace-cmd: New internal APIs for reading ELF header trace-cmd: [POC] Add support for uprobes Makefile | 10 + tracecmd/Makefile | 2 + tracecmd/include/trace-local.h | 56 +- tracecmd/trace-obj-debug.c | 908 +++++++++++++++++++++++++++++++++ tracecmd/trace-record.c | 204 ++++---- tracecmd/trace-uprobes.c | 223 ++++++++ tracecmd/trace-usage.c | 8 + 7 files changed, 1297 insertions(+), 114 deletions(-) create mode 100644 tracecmd/trace-obj-debug.c create mode 100644 tracecmd/trace-uprobes.c -- 2.28.0