Libbpf userspace function `bpf_obj_get_opts`

1.0.0

Low level wrapper around the BPF_OBJ_GET syscall command.

Definition

int bpf_obj_get_opts(const char *pathname, const struct bpf_obj_get_opts *opts);

Parameters

pathname: path to the object to retrieve
opts: pointer to a bpf_obj_get_opts structure

Return

>0, file descriptor of the object; negative error code, otherwise

`struct bpf_obj_get_opts`

struct bpf_obj_get_opts {
    size_t sz; /* size of this struct for forward/backward compatibility */

    __u32 file_flags;
    int path_fd;

    size_t :0;
};

`file_flags`

1.0.0

`path_fd`

1.3.0

Usage

This function should only be used if you need precise control over the object retrieval process. In most cases the bpf_object__open or similar high level API functions should be used instead.

Example

Docs could be improved

This part of the docs is incomplete, contributions are very welcome

Libbpf userspace function bpf_obj_get_opts