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-rw-r--r--tools/testing/selftests/bpf/progs/freplace_get_constant.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/freplace_get_constant.c b/tools/testing/selftests/bpf/progs/freplace_get_constant.c
new file mode 100644
index 000000000000..705e4b64dfc2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/freplace_get_constant.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+volatile __u64 test_get_constant = 0;
+SEC("freplace/get_constant")
+int security_new_get_constant(long val)
+{
+ if (val != 123)
+ return 0;
+ test_get_constant = 1;
+ return test_get_constant; /* original get_constant() returns val - 122 */
+}
+char _license[] SEC("license") = "GPL";