From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 23E393236 for ; Thu, 29 Jun 2023 06:38:42 +0000 (UTC) Received: from mx0b-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87ECD1727 for ; Wed, 28 Jun 2023 23:38:40 -0700 (PDT) Received: from pps.filterd (m0148460.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 35T0Vw92016857 for ; Wed, 28 Jun 2023 23:38:39 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=facebook; bh=rixcm9NZ6PmXkT9NRN6sqh13PmGg25Zhrhx7PW0Re6E=; b=T9XXDRj3BNVEa30bCh7gq9D0nEiwc3e2E4/EBSKCT12ctENVxTSXhQyqUtu49ZMHxi8J KTNb79WlrCTbKxJb7L+O5IfQbK6SvXfCx0CbGzdxVLkqh/hquKMWFOhf1Y0s3/f4ZiyI tdlUg/5m2BKoyQxaHTRzQEItNuR7Jr1H2Gk= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com (PPS) with ESMTPS id 3rgyg3j9dh-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Wed, 28 Jun 2023 23:38:39 -0700 Received: from twshared52565.14.frc2.facebook.com (2620:10d:c085:108::8) by mail.thefacebook.com (2620:10d:c085:21d::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.23; Wed, 28 Jun 2023 23:38:38 -0700 Received: by devbig309.ftw3.facebook.com (Postfix, from userid 128203) id 842C4221E7ED2; Wed, 28 Jun 2023 23:38:28 -0700 (PDT) From: Yonghong Song To: CC: Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann , Fangrui Song , Subject: [RFC PATCH bpf-next 12/13] selftests/bpf: Add unit tests for new gotol insn Date: Wed, 28 Jun 2023 23:38:28 -0700 Message-ID: <20230629063828.1657885-1-yhs@fb.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230629063715.1646832-1-yhs@fb.com> References: <20230629063715.1646832-1-yhs@fb.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-GUID: glYe1GBxiodbEQeMKqkelsq6JYh9b6jf X-Proofpoint-ORIG-GUID: glYe1GBxiodbEQeMKqkelsq6JYh9b6jf X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-06-28_14,2023-06-27_01,2023-05-22_02 X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_LOW,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Signed-off-by: Yonghong Song --- .../selftests/bpf/prog_tests/verifier.c | 2 ++ .../selftests/bpf/progs/verifier_gotol.c | 30 +++++++++++++++++++ 2 files changed, 32 insertions(+) create mode 100644 tools/testing/selftests/bpf/progs/verifier_gotol.c diff --git a/tools/testing/selftests/bpf/prog_tests/verifier.c b/tools/te= sting/selftests/bpf/prog_tests/verifier.c index b2c041a4bc70..d07251560ce4 100644 --- a/tools/testing/selftests/bpf/prog_tests/verifier.c +++ b/tools/testing/selftests/bpf/prog_tests/verifier.c @@ -25,6 +25,7 @@ #include "verifier_direct_stack_access_wraparound.skel.h" #include "verifier_div0.skel.h" #include "verifier_div_overflow.skel.h" +#include "verifier_gotol.skel.h" #include "verifier_helper_access_var_len.skel.h" #include "verifier_helper_packet_access.skel.h" #include "verifier_helper_restricted.skel.h" @@ -130,6 +131,7 @@ void test_verifier_direct_packet_access(void) { RUN(v= erifier_direct_packet_acces void test_verifier_direct_stack_access_wraparound(void) { RUN(verifier_d= irect_stack_access_wraparound); } void test_verifier_div0(void) { RUN(verifier_div0); } void test_verifier_div_overflow(void) { RUN(verifier_div_overflo= w); } +void test_verifier_gotol(void) { RUN(verifier_gotol); } void test_verifier_helper_access_var_len(void) { RUN(verifier_helper_acc= ess_var_len); } void test_verifier_helper_packet_access(void) { RUN(verifier_helper_pack= et_access); } void test_verifier_helper_restricted(void) { RUN(verifier_helper_rest= ricted); } diff --git a/tools/testing/selftests/bpf/progs/verifier_gotol.c b/tools/t= esting/selftests/bpf/progs/verifier_gotol.c new file mode 100644 index 000000000000..78870ea4d468 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/verifier_gotol.c @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include +#include "bpf_misc.h" + +SEC("socket") +__description("gotol, small_imm") +__success __success_unpriv __retval(1) +__naked void gotol_small_imm(void) +{ + asm volatile (" \ + call %[bpf_ktime_get_ns]; \ + if r0 =3D=3D 0 goto l0_%=3D; \ + gotol l1_%=3D; \ +l2_%=3D: \ + gotol l3_%=3D; \ +l1_%=3D: \ + r0 =3D 1; \ + gotol l2_%=3D; \ +l0_%=3D: \ + r0 =3D 2; \ +l3_%=3D: \ + exit; \ +" : + : __imm(bpf_ktime_get_ns) + : __clobber_all); +} + +char _license[] SEC("license") =3D "GPL"; --=20 2.34.1