selftests/bpf: Remove xxd util dependency

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The verification signature header generation requires converting a
binary certificate to a C array. Previously this only worked with
xxd (part of vim-common package).
As xxd may not be available on some systems building selftests, it makes
sense to substitute it with more common utils: hexdump, wc, sed to
generate equivalent C array output.

Tested by generating header with both xxd and hexdump and comparing
them.

Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Tested-by: Alan Maguire <alan.maguire@oracle.com>
Link: https://lore.kernel.org/bpf/20260128190552.242335-1-mykyta.yatsenko5@gmail.com

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Mykyta Yatsenko 2026-01-28 19:05:51 +00:00 • committed by Andrii Nakryiko

parent ba225407f8

commit b640d556a2

2 changed files with 6 additions and 5 deletions

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tools/testing/selftests/bpf/.gitignore vendored

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10

tools/testing/selftests/bpf/Makefile

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