tools/testing/selftests/bpf/progs/bpf_iter_test_kern3.c

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