selftests/bpf: abstract away test log output

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This patch changes how test output is printed out. By default, if test
had no errors, the only output will be a single line with test number,
name, and verdict at the end, e.g.:

  #31 xdp:OK

If test had any errors, all log output captured during test execution
will be output after test completes.

It's possible to force output of log with `-v` (`--verbose`) option, in
which case output won't be buffered and will be output immediately.

To support this, individual tests are required to use helper methods for
logging: `test__printf()` and `test__vprintf()`.

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

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This commit is contained in:

Andrii Nakryiko 2019-07-27 20:25:28 -07:00 • committed by Alexei Starovoitov

parent 329e38f76c

commit 0ff97e56c0

12 changed files with 183 additions and 73 deletions

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6

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

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31

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

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4

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

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tools/testing/selftests/bpf/prog_tests/l4lb_all.c

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

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

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

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

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4

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

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3

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

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147

tools/testing/selftests/bpf/test_progs.c

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37

tools/testing/selftests/bpf/test_progs.h

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