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| author | Andrii Nakryiko <[email protected]> | 2022-05-09 00:41:46 +0000 |
|---|---|---|
| committer | Daniel Borkmann <[email protected]> | 2022-05-09 15:15:32 +0000 |
| commit | f760d0537925e2973ed3adc2e590aa2968d0e8dc (patch) | |
| tree | a19c4f25b7f75e27bf680927ff6e28efe5f1f60b /tools/lib/bpf/libbpf.c | |
| parent | selftests/bpf: Add bpf_core_field_offset() tests (diff) | |
| download | kernel-f760d0537925e2973ed3adc2e590aa2968d0e8dc.tar.gz kernel-f760d0537925e2973ed3adc2e590aa2968d0e8dc.zip | |
libbpf: Provide barrier() and barrier_var() in bpf_helpers.h
Add barrier() and barrier_var() macros into bpf_helpers.h to be used by
end users. While a bit advanced and specialized instruments, they are
sometimes indispensable. Instead of requiring each user to figure out
exact asm volatile incantations for themselves, provide them from
bpf_helpers.h.
Also remove conflicting definitions from selftests. Some tests rely on
barrier_var() definition being nothing, those will still work as libbpf
does the #ifndef/#endif guarding for barrier() and barrier_var(),
allowing users to redefine them, if necessary.
Signed-off-by: Andrii Nakryiko <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Diffstat (limited to 'tools/lib/bpf/libbpf.c')
0 files changed, 0 insertions, 0 deletions