selftests/bpf: add loop test 4

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Add a test that returns a 'random' number between [0, 2^20)
If state pruning is not working correctly for loop body the number of
processed insns will be 2^20 * num_of_insns_in_loop_body and the program
will be rejected.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>

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Alexei Starovoitov 2019-08-02 15:54:01 -07:00

parent 02bc2b6494

commit a78d0dbec7

2 changed files with 19 additions and 0 deletions

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1

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

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18

tools/testing/selftests/bpf/progs/loop4.c

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