selftests/bpf: Reuse stderr parsing for libarena ASAN tests

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Add code to directly test the output of libarena ASAN tests.
The code reuses testing infrastructure originally for BPF streams
to verify that ASAN emits call stacks when the selftests trigger
a memory error.

Since stderr() testing uses logic from test_progs, it is only
available on the test_progs-based selftest runner. The standalone
runner still uses internal ASAN state to verify access errors are
triaged as expected.

Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com>
Link: https://lore.kernel.org/r/20260426190338.4615-9-emil@etsalapatis.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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This commit is contained in:

Emil Tsalapatis 2026-04-26 15:03:38 -04:00 • committed by Alexei Starovoitov

parent b1487dc1b1

commit 554e4eb9e4

5 changed files with 76 additions and 12 deletions

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18

tools/testing/selftests/bpf/libarena/selftests/st_asan_buddy.bpf.c

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15

tools/testing/selftests/bpf/libarena/selftests/test_progs_compat.h

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2

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

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51

tools/testing/selftests/bpf/test_loader.c

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2

tools/testing/selftests/bpf/test_progs.h

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