From patchwork Sun Apr 11 13:00:07 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiri Olsa X-Patchwork-Id: 419871 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=-14.0 required=3.0 tests=BAYES_00, INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 BD09BC43461 for ; Sun, 11 Apr 2021 13:00:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8AFED611C9 for ; Sun, 11 Apr 2021 13:00:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235631AbhDKNAv convert rfc822-to-8bit (ORCPT ); Sun, 11 Apr 2021 09:00:51 -0400 Received: from us-smtp-delivery-44.mimecast.com ([205.139.111.44]:29836 "EHLO us-smtp-delivery-44.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235618AbhDKNAt (ORCPT ); Sun, 11 Apr 2021 09:00:49 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-598-Spt0MZ3rN2Ka5bgV0gDGVw-1; Sun, 11 Apr 2021 09:00:27 -0400 X-MC-Unique: Spt0MZ3rN2Ka5bgV0gDGVw-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 1EA9710053E6; Sun, 11 Apr 2021 13:00:25 +0000 (UTC) Received: from krava.redhat.com (unknown [10.40.192.79]) by smtp.corp.redhat.com (Postfix) with ESMTP id B394F101E24A; Sun, 11 Apr 2021 13:00:22 +0000 (UTC) From: Jiri Olsa To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , =?utf-8?q?Toke_H=C3=B8iland-J=C3=B8rgensen?= Subject: [PATCHv3 bpf-next 2/5] selftests/bpf: Add re-attach test to fentry_test Date: Sun, 11 Apr 2021 15:00:07 +0200 Message-Id: <20210411130010.1337650-3-jolsa@kernel.org> In-Reply-To: <20210411130010.1337650-1-jolsa@kernel.org> References: <20210411130010.1337650-1-jolsa@kernel.org> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jolsa@kernel.org X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Adding the test to re-attach (detach/attach again) tracing fentry programs, plus check that already linked program can't be attached again. Also switching to ASSERT* macros and adding missing ';' in ASSERT_ERR_PTR macro. Signed-off-by: Jiri Olsa --- .../selftests/bpf/prog_tests/fentry_test.c | 51 +++++++++++++------ tools/testing/selftests/bpf/test_progs.h | 2 +- 2 files changed, 37 insertions(+), 16 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/fentry_test.c b/tools/testing/selftests/bpf/prog_tests/fentry_test.c index 04ebbf1cb390..f440c74f5367 100644 --- a/tools/testing/selftests/bpf/prog_tests/fentry_test.c +++ b/tools/testing/selftests/bpf/prog_tests/fentry_test.c @@ -3,35 +3,56 @@ #include #include "fentry_test.skel.h" -void test_fentry_test(void) +static int fentry_test(struct fentry_test *fentry_skel) { - struct fentry_test *fentry_skel = NULL; int err, prog_fd, i; __u32 duration = 0, retval; + struct bpf_link *link; __u64 *result; - fentry_skel = fentry_test__open_and_load(); - if (CHECK(!fentry_skel, "fentry_skel_load", "fentry skeleton failed\n")) - goto cleanup; - err = fentry_test__attach(fentry_skel); - if (CHECK(err, "fentry_attach", "fentry attach failed: %d\n", err)) - goto cleanup; + if (!ASSERT_OK(err, "fentry_attach")) + return err; + + /* Check that already linked program can't be attached again. */ + link = bpf_program__attach(fentry_skel->progs.test1); + if (!ASSERT_ERR_PTR(link, "fentry_attach_link")) + return -1; prog_fd = bpf_program__fd(fentry_skel->progs.test1); err = bpf_prog_test_run(prog_fd, 1, NULL, 0, NULL, NULL, &retval, &duration); - CHECK(err || retval, "test_run", - "err %d errno %d retval %d duration %d\n", - err, errno, retval, duration); + ASSERT_OK(err || retval, "test_run"); result = (__u64 *)fentry_skel->bss; - for (i = 0; i < 6; i++) { - if (CHECK(result[i] != 1, "result", - "fentry_test%d failed err %lld\n", i + 1, result[i])) - goto cleanup; + for (i = 0; i < sizeof(*fentry_skel->bss) / sizeof(__u64); i++) { + if (!ASSERT_EQ(result[i], 1, "fentry_result")) + return -1; } + fentry_test__detach(fentry_skel); + + /* zero results for re-attach test */ + memset(fentry_skel->bss, 0, sizeof(*fentry_skel->bss)); + return 0; +} + +void test_fentry_test(void) +{ + struct fentry_test *fentry_skel = NULL; + int err; + + fentry_skel = fentry_test__open_and_load(); + if (!ASSERT_OK_PTR(fentry_skel, "fentry_skel_load")) + goto cleanup; + + err = fentry_test(fentry_skel); + if (!ASSERT_OK(err, "fentry_first_attach")) + goto cleanup; + + err = fentry_test(fentry_skel); + ASSERT_OK(err, "fentry_second_attach"); + cleanup: fentry_test__destroy(fentry_skel); } diff --git a/tools/testing/selftests/bpf/test_progs.h b/tools/testing/selftests/bpf/test_progs.h index e87c8546230e..ee7e3b45182a 100644 --- a/tools/testing/selftests/bpf/test_progs.h +++ b/tools/testing/selftests/bpf/test_progs.h @@ -210,7 +210,7 @@ extern int test__join_cgroup(const char *path); #define ASSERT_ERR_PTR(ptr, name) ({ \ static int duration = 0; \ const void *___res = (ptr); \ - bool ___ok = IS_ERR(___res) \ + bool ___ok = IS_ERR(___res); \ CHECK(!___ok, (name), "unexpected pointer: %p\n", ___res); \ ___ok; \ })