libbpf: Introduce bpf_program__clone()

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Add bpf_program__clone() API that loads a single BPF program from a
prepared BPF object into the kernel, returning a file descriptor owned
by the caller.

After bpf_object__prepare(), callers can use bpf_program__clone() to
load individual programs with custom bpf_prog_load_opts, instead of
loading all programs at once via bpf_object__load(). Non-zero fields in
opts override the defaults derived from the program and object
internals; passing NULL opts populates everything automatically.

Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com>
Link: https://lore.kernel.org/r/20260317-veristat_prepare-v4-1-74193d4cc9d9@meta.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Mykyta Yatsenko 2026-03-17 10:39:21 -07:00 • committed by Alexei Starovoitov

parent f4706504e2

commit 970bd2dced

3 changed files with 96 additions and 0 deletions

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78

tools/lib/bpf/libbpf.c

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tools/lib/bpf/libbpf.h

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tools/lib/bpf/libbpf.map

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