| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | /* Copyright (c) 2020 Facebook */ |
| 3 | #include "bpf_iter.h" |
| 4 | #include <bpf/bpf_helpers.h> |
| 5 | |
| 6 | char _license[] SEC("license") = "GPL"; |
| 7 | int count = 0; |
| 8 | |
| 9 | SEC("iter/task") |
| 10 | int dump_task(struct bpf_iter__task *ctx) |
| 11 | { |
| 12 | struct seq_file *seq = ctx->meta->seq; |
| 13 | char c; |
| 14 | |
| 15 | if (count < 4) { |
| 16 | c = START_CHAR + count; |
| 17 | bpf_seq_write(seq, &c, sizeof(c)); |
| 18 | count++; |
| 19 | } |
| 20 | |
| 21 | return 0; |
| 22 | } |
| 23 |