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selftests/bpf: specify pahole version requirement for btf_tag test

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Specify pahole version requirement (1.23) for btf_tag subtests
btf_type_tag_user_{mod1, mod2, vmlinux}.

Signed-off-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220127154622.663337-1-yhs@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Yonghong Song 2022-01-27 07:46:22 -08:00 committed by Alexei Starovoitov
parent 696c390115
commit 67ef7e1a75
1 changed files with 2 additions and 0 deletions
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tools/testing/selftests/bpf/README.rst
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@ -206,6 +206,8 @@ btf_tag test and Clang version
The btf_tag selftest requires LLVM support to recognize the btf_decl_tag and
btf_type_tag attributes. They are introduced in `Clang 14` [0_, 1_].
The subtests ``btf_type_tag_user_{mod1, mod2, vmlinux}`` also requires
pahole version ``1.23``.
Without them, the btf_tag selftest will be skipped and you will observe: