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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3E98EC43334 for ; Fri, 3 Jun 2022 20:45:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242871AbiFCUpX (ORCPT ); Fri, 3 Jun 2022 16:45:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58898 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229957AbiFCUpW (ORCPT ); Fri, 3 Jun 2022 16:45:22 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 63FB45B894; Fri, 3 Jun 2022 13:45:19 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id F40A7B82481; Fri, 3 Jun 2022 20:45:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6160DC385B8; Fri, 3 Jun 2022 20:45:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1654289116; bh=yuxPSID2uVVHczjuT1HyaKHQ8maLcXOqcB+pYQKeeso=; h=From:To:Cc:Subject:Date:From; b=X9lExf1k6GSKV/H65HL5CWEgXd6lm689I67jY7lnsp86ZUIphnoa2ZoXObIyKxcFp 29SNC9Sodk7HdeX72fFywKRgaE4tnTh1DJxXU/PSeut63WR7jTKbd3aIZScYq9knYI 2qyLsnDD5VclQ1HJmgRMPTCi+rybrE40L1Izg+rHDG8ISzh6bavE7dJj3OZzFN3tXA HKqBTWwRuClg/ha6XX7kJfD0LbqLilqhVvw+DgtdF1FU0XL83i/p7YYWqite6zyOTm 5GswFzU+CYHZA7EwvcC6EKZ357Z09n8ttxsUFCvh0HxgbiqrdHzkpzawEGurxKVwyA JxFzzyCSpCZ9w== From: Jiri Olsa To: Arnaldo Carvalho de Melo , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko Cc: linux-perf-users@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, Ingo Molnar , Namhyung Kim , Alexander Shishkin , Peter Zijlstra , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , Ian Rogers Subject: [PATCHv4 bpf-next 0/2] perf tools: Fix prologue generation Date: Fri, 3 Jun 2022 22:45:07 +0200 Message-Id: <20220603204509.15044-1-jolsa@kernel.org> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org hi, sending change we discussed some time ago [1] to get rid of some deprecated functions we use in perf prologue code. Despite the gloomy discussion I think the final code does not look that bad ;-) This patchset removes following libbpf functions from perf: bpf_program__set_prep bpf_program__nth_fd struct bpf_prog_prep_result v4 changes: - fix typo [Andrii] v3 changes: - removed R0/R1 zero init in libbpf_prog_prepare_load_fn, because it's not needed [Andrii] - rebased/post on top of bpf-next/master which now has all the needed perf/core changes v2 changes: - use fallback section prog handler, so we don't need to use section prefix [Andrii] - realloc prog->insns array in bpf_program__set_insns [Andrii] - squash patch 1 from previous version with bpf_program__set_insns change [Daniel] - patch 3 already merged [Arnaldo] - added more comments thanks, jirka [1] https://lore.kernel.org/bpf/CAEf4BzaiBO3_617kkXZdYJ8hS8YF--ZLgapNbgeeEJ-pY0H88g@mail.gmail.com/ --- Jiri Olsa (2): perf tools: Register fallback libbpf section handler perf tools: Rework prologue generation code tools/perf/util/bpf-loader.c | 173 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++------------------ 1 file changed, 155 insertions(+), 18 deletions(-)