Libbpf userspace function btf__pointer_size
Return pointer size this BTF instance assumes.
Definition
size_t btf__pointer_size(const struct btf *btf);
Parameters
btf: pointer to astruct btfobject
Return
The size of the pointer in bytes.
Usage
The size is heuristically determined by looking for 'long' or 'unsigned long' integer type and recording its size in bytes. If BTF type information doesn't have any such type, this function returns 0. In the latter case, native architecture's pointer size is assumed, so will be either 4 or 8, depending on architecture that libbpf was compiled for. It's possible to override guessed value by using btf__set_pointer_size API.
Example
Docs could be improved
This part of the docs is incomplete, contributions are very welcome