From: Yonghong Song <yhs@fb.com>
To: <bpf@vger.kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>,
Andrii Nakryiko <andrii@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>, <kernel-team@fb.com>
Subject: [PATCH bpf-next 11/12] selftests/bpf: Clarify llvm dependency with possible selftest failures
Date: Sun, 1 May 2022 12:00:59 -0700 [thread overview]
Message-ID: <20220501190059.2581175-1-yhs@fb.com> (raw)
In-Reply-To: <20220501190002.2576452-1-yhs@fb.com>
Certain subtests in selftests core_reloc and core_reloc_btfgen
requires llvm ENUM64 support in llvm15. If an older compiler
is used, these subtests will fail. Make this requirement clear
in selftests README.rst file.
Signed-off-by: Yonghong Song <yhs@fb.com>
---
tools/testing/selftests/bpf/README.rst | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/tools/testing/selftests/bpf/README.rst b/tools/testing/selftests/bpf/README.rst
index eb1b7541f39d..a68f448a6043 100644
--- a/tools/testing/selftests/bpf/README.rst
+++ b/tools/testing/selftests/bpf/README.rst
@@ -266,3 +266,21 @@ from running test_progs will look like:
test_xdpwall:FAIL:Does LLVM have https://reviews.llvm.org/D109073? unexpected error: -4007
__ https://reviews.llvm.org/D109073
+
+ENUM64 support and Clang version
+================================
+
+There are a few selftests requiring LLVM ENUM64 support. The LLVM ENUM64 is
+introduced in `Clang 15` [0_]. Without proper compiler support, the following selftests
+will fail:
+
+.. code-block:: console
+
+ #45 /72 core_reloc/enum64val:FAIL
+ #45 /73 core_reloc/enum64val___diff:FAIL
+ #45 /74 core_reloc/enum64val___val3_missing:FAIL
+ #46 /72 core_reloc_btfgen/enum64val:FAIL
+ #46 /73 core_reloc_btfgen/enum64val___diff:FAIL
+ #46 /74 core_reloc_btfgen/enum64val___val3_missing:FAIL
+
+.. _0: https://reviews.llvm.org/D124641
--
2.30.2
next prev parent reply other threads:[~2022-05-01 19:01 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-01 19:00 [PATCH bpf-next 00/12] bpf: Add 64bit enum value support Yonghong Song
2022-05-01 19:00 ` [PATCH bpf-next 01/12] bpf: Add btf enum64 support Yonghong Song
2022-05-09 0:33 ` Dave Marchevsky
2022-05-09 22:29 ` Andrii Nakryiko
2022-05-10 22:06 ` Yonghong Song
2022-05-10 23:18 ` Andrii Nakryiko
2022-05-11 0:17 ` Yonghong Song
2022-05-01 19:00 ` [PATCH bpf-next 02/12] libbpf: Permit 64bit relocation value Yonghong Song
2022-05-09 1:06 ` Dave Marchevsky
2022-05-10 19:35 ` Yonghong Song
2022-05-09 22:37 ` Andrii Nakryiko
2022-05-10 22:14 ` Yonghong Song
2022-05-10 23:19 ` Andrii Nakryiko
2022-05-01 19:00 ` [PATCH bpf-next 03/12] libbpf: Fix an error in 64bit relocation value computation Yonghong Song
2022-05-09 0:55 ` Dave Marchevsky
2022-05-09 0:56 ` Dave Marchevsky
2022-05-09 22:37 ` Andrii Nakryiko
2022-05-10 22:11 ` Yonghong Song
2022-05-01 19:00 ` [PATCH bpf-next 04/12] libbpf: Add btf enum64 support Yonghong Song
2022-05-03 17:22 ` kernel test robot
2022-05-05 22:44 ` Yonghong Song
2022-05-09 23:25 ` Andrii Nakryiko
2022-05-10 22:40 ` Yonghong Song
2022-05-10 23:02 ` Yonghong Song
2022-05-10 23:40 ` Andrii Nakryiko
2022-05-10 23:38 ` Andrii Nakryiko
2022-05-11 0:39 ` Yonghong Song
2022-05-11 17:43 ` Andrii Nakryiko
2022-05-11 18:56 ` Yonghong Song
2022-05-01 19:00 ` [PATCH bpf-next 05/12] bpftool: " Yonghong Song
2022-05-09 23:31 ` Andrii Nakryiko
2022-05-10 22:43 ` Yonghong Song
2022-05-01 19:00 ` [PATCH bpf-next 06/12] selftests/bpf: Fix selftests failure Yonghong Song
2022-05-09 2:21 ` Dave Marchevsky
2022-05-10 19:40 ` Yonghong Song
2022-05-09 23:34 ` Andrii Nakryiko
2022-05-10 22:44 ` Yonghong Song
2022-05-01 19:00 ` [PATCH bpf-next 07/12] selftests/bpf: Test new libbpf enum32/enum64 API functions Yonghong Song
2022-05-01 19:00 ` [PATCH bpf-next 08/12] selftests/bpf: Add BTF_KIND_ENUM64 unit tests Yonghong Song
2022-05-01 19:00 ` [PATCH bpf-next 09/12] selftests/bpf: Test BTF_KIND_ENUM64 for deduplication Yonghong Song
2022-05-09 23:37 ` Andrii Nakryiko
2022-05-10 22:44 ` Yonghong Song
2022-05-01 19:00 ` [PATCH bpf-next 10/12] selftests/bpf: add a test for enum64 value relocation Yonghong Song
2022-05-09 23:38 ` Andrii Nakryiko
2022-05-10 22:45 ` Yonghong Song
2022-05-01 19:00 ` Yonghong Song [this message]
2022-05-01 19:01 ` [PATCH bpf-next 12/12] docs/bpf: Update documentation for BTF_KIND_ENUM64 support Yonghong Song
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