lmdk: fix building system-service modules

lyakh · kv2019i · commit 45dc968cb266 · 2024-02-06T09:50:31.000+02:00
System-service modules cannot include Zephyr headers and don't use
exported symbols, they link sink_api.c and source_api.c into their
images. Disable symbol exporting for them.

Signed-off-by: Guennadi Liakhovetski &lt;guennadi.liakhovetski@linux.intel.com&gt;
diff --git a/src/module/audio/sink_api.c b/src/module/audio/sink_api.c
@@ -5,7 +5,17 @@
 
 #include <module/audio/sink_api.h>
 #include <module/audio/audio_stream.h>
+/*
+ * When building native system-service modules only exported module headers can
+ * be included, autoconf.h isn't included either. To identify such a build we
+ * need any symbol that is guaranteed to be defined with any SOF build.
+ * CONFIG_CORE_COUNT is such a symbol, it is always defined to an integer number
+ */
+#ifndef CONFIG_CORE_COUNT
+#define EXPORT_SYMBOL(...)
+#else
 #include <rtos/symbol.h>
+#endif
 
 /* This file contains public sink API functions that were too large to mark is as inline. */
 
diff --git a/src/module/audio/source_api.c b/src/module/audio/source_api.c
@@ -3,10 +3,19 @@
  * Copyright(c) 2023 Intel Corporation. All rights reserved.
  */
 
-
 #include <module/audio/source_api.h>
 #include <module/audio/audio_stream.h>
+/*
+ * When building native system-service modules only exported module headers can
+ * be included, autoconf.h isn't included either. To identify such a build we
+ * need any symbol that is guaranteed to be defined with any SOF build.
+ * CONFIG_CORE_COUNT is such a symbol, it is always defined to an integer number
+ */
+#ifndef CONFIG_CORE_COUNT
+#define EXPORT_SYMBOL(...)
+#else
 #include <rtos/symbol.h>
+#endif
 
 /* This file contains public source API functions that were too large to mark is as inline. */
 
