Helper function bpf_get_retval
Definition
Copyright (c) 2015 The Libbpf Authors. All rights reserved.
Get the BPF program's return value that will be returned to the upper layers.
This helper is currently supported by cgroup programs and only by the hooks where BPF program's return value is returned to the userspace via errno.
Returns
The BPF program's return value.
static int (* const bpf_get_retval)(void) = (void *) 186;
Usage
Docs could be improved
This part of the docs is incomplete, contributions are very welcome
Program types
This helper call can be used in the following program types:
Example
Docs could be improved
This part of the docs is incomplete, contributions are very welcome