kernel_optimize_test/samples/bpf/task_fd_query_kern.c
Yonghong Song ecb96f7fe1 samples/bpf: add a samples/bpf test for BPF_TASK_FD_QUERY
This is mostly to test kprobe/uprobe which needs kernel headers.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-05-24 18:18:20 -07:00

20 lines
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C

// SPDX-License-Identifier: GPL-2.0
#include <linux/version.h>
#include <linux/ptrace.h>
#include <uapi/linux/bpf.h>
#include "bpf_helpers.h"
SEC("kprobe/blk_start_request")
int bpf_prog1(struct pt_regs *ctx)
{
return 0;
}
SEC("kretprobe/blk_account_io_completion")
int bpf_prog2(struct pt_regs *ctx)
{
return 0;
}
char _license[] SEC("license") = "GPL";
u32 _version SEC("version") = LINUX_VERSION_CODE;