From patchwork Tue Feb 21 02:53:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Menglong Dong X-Patchwork-Id: 13147331 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 7454EC61DA3 for ; Tue, 21 Feb 2023 02:55:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233003AbjBUCzT (ORCPT ); Mon, 20 Feb 2023 21:55:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60930 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233451AbjBUCzA (ORCPT ); Mon, 20 Feb 2023 21:55:00 -0500 Received: from mail-pj1-x1044.google.com (mail-pj1-x1044.google.com [IPv6:2607:f8b0:4864:20::1044]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 658562724; Mon, 20 Feb 2023 18:54:36 -0800 (PST) Received: by mail-pj1-x1044.google.com with SMTP id u10so3224896pjc.5; Mon, 20 Feb 2023 18:54:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=PYRU/rOAadesjlu86+EoUO57rm+/qhq46aQQu1E8Ap0=; b=MVw0JTjA+bXaSMXGXE6cojjE+JiwSNEeBmDvFtWzVdbC09tcaAP3Pdkdnas42RKohp mC6o0CYGdyOaBKVsdQyt9Ov7Z2TZ/PefDq+Qee6te51UvKHSdHSLCOMz0lWkjADO2xoO r0DZYPxAnMS5H3zxx6qRLzgmf1hwmgbkKaZXPIaTYKho3TggLOmuLOfQRhBcurVmbDQC LpRNnAXaKOTQNE2sl44ML0USuVbULWv92HWzoVDAOTLnz954z3chCv8oBo26pZCP3lNh CZ4Q8bEDDOuIwBCmHRciE9UNvBOTM3qBRbClpd1QUz1mNi0/iz39jdLJ5QyZNzfdnNrI TuZg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=PYRU/rOAadesjlu86+EoUO57rm+/qhq46aQQu1E8Ap0=; b=Tiv6rtfoSwIQkhWbRGH4AVawjyDBdwh6EaOkkBnfpBjqlBfyNFuL9bS3qkhlyzzcr5 8MKzLBitDdGoJ7YUo0a48PnFFWAv34T8JrelRLIKrueRtK13eT5v+4wPIg7jDND48VQt fEdZAyypOw1cvOoMHlRvuv0uxd+N80/o4HuPdoE2hW2dtHqWYzjfE80dIOgYHpoz9UbK yT8MLflMDm8T/fcn7eU4DNrK/1+FwrNhiicNxX44RyjQCMy4qFynXtZanAdOhHru0mul V67FXfKelDeBtUwbdQFLEjqVyNMdyjChHVGEnXjUfFCFU8ZJuBxE6xS+hpAPu0G1owNv o43g== X-Gm-Message-State: AO0yUKVoZCeF0rQavcEZL+rmI9i4458FfNpIIgat2pgem6ZRJ7geeMz9 p+Lii4rKIuaerOlyCqq1aRFctC8v3BkklCVJ X-Google-Smtp-Source: AK7set8Nut7yeFFwYSaODhm/sNgK4Y4oFA/oTbVii6xWm3Z70gsQK42x3x1H/e4TRqxd3SULm2JPHg== X-Received: by 2002:a17:903:1205:b0:19a:b151:bf68 with SMTP id l5-20020a170903120500b0019ab151bf68mr2964627plh.38.1676948067813; Mon, 20 Feb 2023 18:54:27 -0800 (PST) Received: from localhost.localdomain ([203.205.141.16]) by smtp.gmail.com with ESMTPSA id k3-20020a170902e90300b0019a837be977sm8590156pld.271.2023.02.20.18.54.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Feb 2023 18:54:27 -0800 (PST) From: menglong8.dong@gmail.com X-Google-Original-From: imagedong@tencent.com To: andrii.nakryiko@gmail.com, alan.maguire@oracle.com Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, martin.lau@linux.dev, song@kernel.org, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com, haoluo@google.com, jolsa@kernel.org, benbjiang@tencent.com, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, Menglong Dong Subject: [PATCH bpf-next v3 0/3] libbpf: allow users to set kprobe/uprobe attach mode Date: Tue, 21 Feb 2023 10:53:44 +0800 Message-Id: <20230221025347.389047-1-imagedong@tencent.com> X-Mailer: git-send-email 2.39.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net From: Menglong Dong By default, libbpf will attach the kprobe/uprobe eBPF program in the latest mode that supported by kernel. In this series, we add the support to let users manually attach kprobe/uprobe in legacy/perf/link mode in the 1th patch. And in the 2th patch, we split the testing 'attach_probe' into multi subtests, as Andrii suggested. In the 3th patch, we add the testings for loading kprobe/uprobe in different mode. Changes since v2: - fix the typo in the 2th patch Changes since v1: - some small changes in the 1th patch, as Andrii suggested - split 'attach_probe' into multi subtests Menglong Dong (3): libbpf: add support to set kprobe/uprobe attach mode selftests/bpf: split test_attach_probe into multi subtests selftests/bpf: add test for legacy/perf kprobe/uprobe attach mode tools/lib/bpf/libbpf.c | 42 ++- tools/lib/bpf/libbpf.h | 31 +- .../selftests/bpf/prog_tests/attach_probe.c | 283 ++++++++++++------ .../bpf/progs/test_attach_kprobe_sleepable.c | 23 ++ .../selftests/bpf/progs/test_attach_probe.c | 45 +-- .../bpf/progs/test_attach_probe_manual.c | 53 ++++ 6 files changed, 337 insertions(+), 140 deletions(-) create mode 100644 tools/testing/selftests/bpf/progs/test_attach_kprobe_sleepable.c create mode 100644 tools/testing/selftests/bpf/progs/test_attach_probe_manual.c