selftests/bpf: Add test for bpf_override_return helper

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We do not actually test the bpf_override_return helper functionality
itself at the moment, only the bpf program being able to attach it.

Adding test that override prctl syscall return value on top of
kprobe and kprobe.multi.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/bpf/20260112121157.854473-2-jolsa@kernel.org

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Jiri Olsa 2026-01-12 13:11:57 +01:00 • committed by Andrii Nakryiko

parent 276f3b6daf

commit 934d9746ed

3 changed files with 71 additions and 0 deletions

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44

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

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15

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

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12

tools/testing/selftests/bpf/trace_helpers.h

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