Import of the watch repository from Pebble

tests/stubs/stubs_hexdump.h

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "system/hexdump.h"
+#include "system/logging.h"
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+
+void hexdump_using_serial(int level, const char *src_filename, int src_line_number,
+                          const char *line_buffer) { }
+
+void hexdump_using_prompt(int level, const char *src_filename, int src_line_number,
+                          const char *line_buffer) { }
+
+void hexdump_using_pbllog(int level, const char *src_filename, int src_line_number,
+                          const char *line_buffer) { }
+
+void hexdump_log(int level, const uint8_t* data, size_t length) { }
+
+void hexdump_log_src(const char* src_filename, int src_line_number,
+    int level, const uint8_t* data, size_t length, HexdumpLineCallback cb) { }