aboutsummaryrefslogtreecommitdiff
path: root/samples/bpf/task_fd_query_kern.c
diff options
context:
space:
mode:
authorYonghong Song <yhs@fb.com>2018-05-24 11:21:56 -0700
committerAlexei Starovoitov <ast@kernel.org>2018-05-24 18:18:20 -0700
commitecb96f7fe153c7ff2fd31db64c52a53b7e6401ab (patch)
treeb8c6e0b6ef20c9f7a3cb1ae211de6aa2e62ff2de /samples/bpf/task_fd_query_kern.c
parent73bc4d9fc045fb709483a733683f816e64a99431 (diff)
downloadlinux-stericsson-ecb96f7fe153c7ff2fd31db64c52a53b7e6401ab.tar.gz
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>
Diffstat (limited to 'samples/bpf/task_fd_query_kern.c')
-rw-r--r--samples/bpf/task_fd_query_kern.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/samples/bpf/task_fd_query_kern.c b/samples/bpf/task_fd_query_kern.c
new file mode 100644
index 000000000000..f4b0a9ea674d
--- /dev/null
+++ b/samples/bpf/task_fd_query_kern.c
@@ -0,0 +1,19 @@
+// 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;