1 files changed, 9 insertions, 0 deletions

diff --git a/tools/testing/selftests/bpf/bpf_helpers.h b/tools/testing/selftests/bpf/bpf_helpers.h
index 5f6f9e7aba2a..e6d243b7cd74 100644
--- a/tools/testing/selftests/bpf/bpf_helpers.h
+++ b/tools/testing/selftests/bpf/bpf_helpers.h
@@ -8,6 +8,14 @@
  */
 #define SEC(NAME) __attribute__((section(NAME), used))
 
+/* helper macro to print out debug messages */
+#define bpf_printk(fmt, ...)                            \
+({                                                      \
+        char ____fmt[] = fmt;                           \
+        bpf_trace_printk(____fmt, sizeof(____fmt),      \
+                         ##__VA_ARGS__);                \
+})
+
 /* helper functions called from eBPF programs written in C */
 static void *(*bpf_map_lookup_elem)(void *map, const void *key) =
         (void *) BPF_FUNC_map_lookup_elem;
@@ -216,6 +224,7 @@ static void *(*bpf_sk_storage_get)(void *map, struct bpf_sock *sk,
         (void *) BPF_FUNC_sk_storage_get;
 static int (*bpf_sk_storage_delete)(void *map, struct bpf_sock *sk) =
         (void *)BPF_FUNC_sk_storage_delete;
+static int (*bpf_send_signal)(unsigned sig) = (void *)BPF_FUNC_send_signal;
 
 /* llvm builtin functions that eBPF C program may use to
  * emit BPF_LD_ABS and BPF_LD_IND instructions