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: 5658 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:eb09:0:0:0:0:0 with SMTP id s9csp1643049wrn; Mon, 20 Feb 2023 19:08:31 -0800 (PST) X-Google-Smtp-Source: AK7set9tG9RWqKnq7RIGV4/B+V187sdCamtyl5XUGeYBC93ZLh2JQY/NPsOyfqa+MU09DyzOX/7l X-Received: by 2002:a17:906:308a:b0:8b1:81eb:159e with SMTP id 10-20020a170906308a00b008b181eb159emr13397349ejv.7.1676948911496; Mon, 20 Feb 2023 19:08:31 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1676948911; cv=none; d=google.com; s=arc-20160816; b=dKYwUatpwfIIcZNST4zCktprdhhMt+mv7NPpQyFgM4YHHaWGAqEU4xn2aQScEZ9Qkx TVvaThwSq0YUPSRDAKCj8kkz/Ms1axicxs4xYCQZZ2VTBRgLPkIkkFPFw5bfRIOJjoln 3TbPK3Rspaj9nzjPCt0OGuE5EHAuC0l3m0/iVLU44JrNthYZOqBYELtn19tN8ZdF+ILw lYW4QPbsa80XKKbQ2lzOuBn706deqclGI5nVa7skf51ok+Tnm9SIpw3Uc3aivuoYT5Ar /LSJ14SBRGNhcUN+1EHKpR4OYhW6797SvVplHS3EN/jWDMSWG4zxulwqnOn32KhBnRUU vrhw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from:dkim-signature; bh=PYRU/rOAadesjlu86+EoUO57rm+/qhq46aQQu1E8Ap0=; b=a4MhxsbTIR7AGipHIscP9fTRGIgRXPBj9C9VeQs+X2vu3E0v2PBI6e5dWiTJwXDxiM astt5O32yL7Uuk2B1Pm8E6Y+pJhfPSC7thv8mWJlyrk/YXyHHUUKnB5SNp3kic+cIMe1 0M1n01Yy1Qi+HktOgmis5M8mwrw+x/iAIOSRph0djKcqCzEc/SQyHLGYTVwMPm498ity dTgRsRJCedH0UxkpXKDmRpo6G9LL7S5ogPCqepYuDgn3PWRmaxVp+/osa2QRHkPKGIi7 HniPge6RJhJJGMBLWTvfiAjc6qmH0c4/l7kAQSD1+H92N+ou+a2DqM0X0DhcfX5PalqZ mByg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=MVw0JTjA; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id p15-20020a170907910f00b008b2c21f4843si11405125ejq.60.2023.02.20.19.08.08; Mon, 20 Feb 2023 19:08:31 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=MVw0JTjA; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232507AbjBUCz3 (ORCPT + 99 others); Mon, 20 Feb 2023 21:55:29 -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-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 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1758408381536976936?= X-GMAIL-MSGID: =?utf-8?q?1758408381536976936?= 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