From patchwork Tue Aug 22 16:25:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Masami Hiramatsu (Google)" X-Patchwork-Id: 13361186 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5027FEE4993 for ; Tue, 22 Aug 2023 16:25:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236458AbjHVQZj (ORCPT ); Tue, 22 Aug 2023 12:25:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53936 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233230AbjHVQZj (ORCPT ); Tue, 22 Aug 2023 12:25:39 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EAD78137; Tue, 22 Aug 2023 09:25:37 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 7E3386154D; Tue, 22 Aug 2023 16:25:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 05F15C433C7; Tue, 22 Aug 2023 16:25:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1692721536; bh=Q+r3oxlYBxRghMxUbHFTOIiX5XSGjgru9PagyxC488w=; h=From:To:Cc:Subject:Date:From; b=Fh1dty56cRg3F7Cqr2mULpE6ISouwiRnFi0CVfvcb8G3CdvsD321Q/bTb2sGtx0s9 xGExByW+BJJfwaauZfEKyY2naTOZjdLesa1OXqgT3N6Hpi7uw9H+ZaDcVquz1zOM3o g3PLEbWhXggJ1+AUO+dJ3nscQe+VxWAfR7reHk7KG7kV32fMGusWiG/Rq4IiRkgIB/ vzKzEnQROIIxojdgZungWqdSCPR7UZwS3W5SS3W0RQmX91KeJK4L1+OTRNGNHyr1mY TrQvRMuTn7oGeLJay7PzbHZRokzcsUIYVL0sBpfb/suC5eaDJ2Wj72osI4c8gSGd0u 8QPVcUG2XiMNw== From: "Masami Hiramatsu (Google)" To: linux-trace-kernel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Steven Rostedt , mhiramat@kernel.org, Martin KaFai Lau , bpf@vger.kernel.org, Sven Schnelle , Alexei Starovoitov Subject: [PATCH v6 0/9] tracing: Improbe BTF support on probe events Date: Wed, 23 Aug 2023 01:25:31 +0900 Message-Id: <169272153143.160970.15584603734373446082.stgit@devnote2> X-Mailer: git-send-email 2.34.1 User-Agent: StGit/0.19 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-trace-kernel@vger.kernel.org Hi, Here is the 6th version of series to improve the BTF support on probe events. The previous series is here: https://lore.kernel.org/all/169137686814.271367.11218568219311636206.stgit@devnote2/ This version is adding Steve's Ack and allocate the struct btf_anon_stack from heap. This series can be applied on top of "probes/core" branch of https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git/ You can also get this series from: git://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git topic/fprobe-event-ext Thank you, --- Masami Hiramatsu (Google) (9): tracing/probes: Support BTF argument on module functions tracing/probes: Move finding func-proto API and getting func-param API to trace_btf tracing/probes: Add a function to search a member of a struct/union tracing/probes: Support BTF based data structure field access tracing/probes: Support BTF field access from $retval tracing/probes: Add string type check with BTF tracing/fprobe-event: Assume fprobe is a return event by $retval selftests/ftrace: Add BTF fields access testcases Documentation: tracing: Update fprobe event example with BTF field Documentation/trace/fprobetrace.rst | 64 ++- include/linux/btf.h | 1 kernel/bpf/btf.c | 2 kernel/trace/Makefile | 1 kernel/trace/trace.c | 3 kernel/trace/trace_btf.c | 122 +++++ kernel/trace/trace_btf.h | 11 kernel/trace/trace_eprobe.c | 4 kernel/trace/trace_fprobe.c | 59 ++ kernel/trace/trace_kprobe.c | 1 kernel/trace/trace_probe.c | 499 +++++++++++++++----- kernel/trace/trace_probe.h | 27 + kernel/trace/trace_uprobe.c | 1 .../ftrace/test.d/dynevent/add_remove_btfarg.tc | 20 + .../ftrace/test.d/dynevent/fprobe_syntax_errors.tc | 10 15 files changed, 650 insertions(+), 175 deletions(-) create mode 100644 kernel/trace/trace_btf.c create mode 100644 kernel/trace/trace_btf.h -- Masami Hiramatsu (Google)