selftests/bpf: Fix test_core_autosize on big-endian machines

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The "probed" part of test_core_autosize copies an integer using
bpf_core_read() into an integer of a potentially different size.
On big-endian machines a destination offset is required for this to
produce a sensible result.

Fixes: 888d83b961 ("selftests/bpf: Validate libbpf's auto-sizing of LD/ST/STX instructions")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210812224814.187460-1-iii@linux.ibm.com

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Ilya Leoshkevich 2021-08-13 00:48:14 +02:00 • committed by Andrii Nakryiko

parent 2211c825e7

commit d164dd9a5c

1 changed files with 15 additions and 5 deletions

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tools/testing/selftests/bpf/progs/test_core_autosize.c

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