From patchwork Wed Dec 9 14:29:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiri Olsa X-Patchwork-Id: 11961665 X-Patchwork-Delegate: bpf@iogearbox.net 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=-11.2 required=3.0 tests=BAYES_00,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNWANTED_LANGUAGE_BODY autolearn=ham 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 4FD98C4361B for ; Wed, 9 Dec 2020 14:32:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1437722ADF for ; Wed, 9 Dec 2020 14:32:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726885AbgLIOcS convert rfc822-to-8bit (ORCPT ); Wed, 9 Dec 2020 09:32:18 -0500 Received: from us-smtp-delivery-44.mimecast.com ([207.211.30.44]:60154 "EHLO us-smtp-delivery-44.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726501AbgLIOcN (ORCPT ); Wed, 9 Dec 2020 09:32:13 -0500 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-495-Db5WfGVXNx6YZvAlHFwNoA-1; Wed, 09 Dec 2020 09:31:12 -0500 X-MC-Unique: Db5WfGVXNx6YZvAlHFwNoA-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 5F38B113B22C; Wed, 9 Dec 2020 14:29:16 +0000 (UTC) Received: from krava.redhat.com (unknown [10.40.195.176]) by smtp.corp.redhat.com (Postfix) with ESMTP id DC45B5D9D3; Wed, 9 Dec 2020 14:29:13 +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 Subject: [PATCH bpf-next] selftests/bpf: Fix selftest compilation on clang 11 Date: Wed, 9 Dec 2020 15:29:12 +0100 Message-Id: <20201209142912.99145-1-jolsa@kernel.org> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 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: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net We can't compile test_core_reloc_module.c selftest with clang 11, compile fails with: CLNG-LLC [test_maps] test_core_reloc_module.o progs/test_core_reloc_module.c:57:21: error: use of unknown builtin \ '__builtin_preserve_type_info' [-Wimplicit-function-declaration] out->read_ctx_sz = bpf_core_type_size(struct bpf_testmod_test_read_ctx); Skipping these tests if __builtin_preserve_type_info() is not supported by compiler. Fixes: 6bcd39d366b6 ("selftests/bpf: Add CO-RE relocs selftest relying on kernel module BTF") Fixes: bc9ed69c79ae ("selftests/bpf: Add tp_btf CO-RE reloc test for modules") Signed-off-by: Jiri Olsa Acked-by: Andrii Nakryiko --- .../testing/selftests/bpf/progs/test_core_reloc_module.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_module.c b/tools/testing/selftests/bpf/progs/test_core_reloc_module.c index 56363959f7b0..f59f175c7baf 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_module.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_module.c @@ -40,6 +40,7 @@ int BPF_PROG(test_core_module_probed, struct task_struct *task, struct bpf_testmod_test_read_ctx *read_ctx) { +#if __has_builtin(__builtin_preserve_enum_value) struct core_reloc_module_output *out = (void *)&data.out; __u64 pid_tgid = bpf_get_current_pid_tgid(); __u32 real_tgid = (__u32)(pid_tgid >> 32); @@ -61,6 +62,9 @@ int BPF_PROG(test_core_module_probed, out->len_exists = bpf_core_field_exists(read_ctx->len); out->comm_len = BPF_CORE_READ_STR_INTO(&out->comm, task, comm); +#else + data.skip = true; +#endif return 0; } @@ -70,6 +74,7 @@ int BPF_PROG(test_core_module_direct, struct task_struct *task, struct bpf_testmod_test_read_ctx *read_ctx) { +#if __has_builtin(__builtin_preserve_enum_value) struct core_reloc_module_output *out = (void *)&data.out; __u64 pid_tgid = bpf_get_current_pid_tgid(); __u32 real_tgid = (__u32)(pid_tgid >> 32); @@ -91,6 +96,9 @@ int BPF_PROG(test_core_module_direct, out->len_exists = bpf_core_field_exists(read_ctx->len); out->comm_len = BPF_CORE_READ_STR_INTO(&out->comm, task, comm); +#else + data.skip = true; +#endif return 0; }