selftests/bpf: Add test for bpf array map iterators

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Two subtests are added.
  $ ./test_progs -n 4
  ...
  #4/20 bpf_array_map:OK
  #4/21 bpf_percpu_array_map:OK
  ...

The bpf_array_map subtest also tested bpf program
changing array element values and send key/value
to user space through bpf_seq_write() interface.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200723184121.591367-1-yhs@fb.com

...

This commit is contained in:

Yonghong Song 2020-07-23 11:41:21 -07:00 • committed by Alexei Starovoitov

parent 2a7c2fff7d

commit 60dd49ea65

3 changed files with 247 additions and 0 deletions

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161

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

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40

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

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46

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

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