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| author |   Alexei Starovoitov <ast@kernel.org> | 2019-10-15 20:24:55 -0700 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2019-10-17 16:44:35 +0200 |
| commit | e8c423fb31fa8b1ef6d7cd14a168de33e7c0d702 (patch) | |
| tree | deed1e4a6eb1316a94197c9de41b9c24aff63210 /include/linux/filter.h | |
| parent | bpf/stackmap: Fix deadlock with rq_lock in bpf_get_stack() (diff) | |
| download | linux-dev-e8c423fb31fa8b1ef6d7cd14a168de33e7c0d702.tar.xz linux-dev-e8c423fb31fa8b1ef6d7cd14a168de33e7c0d702.zip | |
bpf: Add typecast to raw_tracepoints to help BTF generation
When pahole converts dwarf to btf it emits only used types.
Wrap existing __bpf_trace_##template() function into
btf_trace_##template typedef and use it in type cast to
make gcc emits this type into dwarf. Then pahole will convert it to btf.
The "btf_trace_" prefix will be used to identify BTF enabled raw tracepoints.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20191016032505.2089704-2-ast@kernel.org
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