selftests/bpf: Add BPF_TYPE_MAP_ARRAY mmap() tests

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Add selftests validating mmap()-ing BPF array maps: both single-element and
multi-element ones. Check that plain bpf_map_update_elem() and
bpf_map_lookup_elem() work correctly with memory-mapped array. Also convert
CO-RE relocation tests to use memory-mapped views of global data.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20191117172806.2195367-6-andriin@fb.com

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Andrii Nakryiko 2019-11-17 09:28:06 -08:00 • committed by Daniel Borkmann

parent 7fe74b4362

commit 5051b38452

3 changed files with 292 additions and 18 deletions

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45

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

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220

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

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45

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

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