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2e4966288c
Currently, when cross compiling bpf samples, the host side cannot use arch-specific bpftool to generate vmlinux.h or skeleton. Since samples/bpf use bpftool for vmlinux.h, skeleton, and static linking only, we can use lightweight bootstrap version of bpftool to handle these, and it's always host-native. Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Pu Lehui <pulehui@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220714024612.944071-2-pulehui@huawei.com