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Diffstat (limited to 'tools/testing/selftests/bpf/progs/fexit_sleep.c')
-rw-r--r--tools/testing/selftests/bpf/progs/fexit_sleep.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/fexit_sleep.c b/tools/testing/selftests/bpf/progs/fexit_sleep.c
new file mode 100644
index 000000000000..03a672d76353
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/fexit_sleep.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char LICENSE[] SEC("license") = "GPL";
+
+int pid = 0;
+int fentry_cnt = 0;
+int fexit_cnt = 0;
+
+SEC("fentry/__x64_sys_nanosleep")
+int BPF_PROG(nanosleep_fentry, const struct pt_regs *regs)
+{
+ if ((int)bpf_get_current_pid_tgid() != pid)
+ return 0;
+
+ fentry_cnt++;
+ return 0;
+}
+
+SEC("fexit/__x64_sys_nanosleep")
+int BPF_PROG(nanosleep_fexit, const struct pt_regs *regs, int ret)
+{
+ if ((int)bpf_get_current_pid_tgid() != pid)
+ return 0;
+
+ fexit_cnt++;
+ return 0;
+}