selftests/bpf: validate .bss section bigger than 8MB is possible now

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Add a simple big 16MB array and validate access to the very last byte of
it to make sure that kernel supports > KMALLOC_MAX_SIZE value_size for
BPF array maps (which are backing .bss in this case).

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20220715053146.1291891-5-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Andrii Nakryiko 2022-07-14 22:31:46 -07:00 • committed by Alexei Starovoitov

parent 63b8ce77b1

commit 2431646120

2 changed files with 6 additions and 0 deletions

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2

tools/testing/selftests/bpf/prog_tests/skeleton.c

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4

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

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