carla-plugin: Only export exactly the symbols that we need

Signed-off-by: falkTX <falktx@falktx.com>

source/plugin/Makefile

@@ -121,35 +121,33 @@ LINK_FLAGS += $(JUCE_GUI_EXTRA_LIBS)
 endif
 endif
 
-ifeq ($(MACOS),true)
-SYMBOLS_NATIVE  = -Wl,-exported_symbol,_carla_get_native_rack_plugin
-SYMBOLS_NATIVE += -Wl,-exported_symbol,_carla_get_native_patchbay_plugin
-SYMBOLS_NATIVE += -Wl,-exported_symbol,_carla_get_native_patchbay16_plugin
-SYMBOLS_NATIVE += -Wl,-exported_symbol,_carla_get_native_patchbay32_plugin
-SYMBOLS_NATIVE += -Wl,-exported_symbol,_carla_get_native_patchbay64_plugin
-SYMBOLS_NATIVE += -Wl,-exported_symbol,_carla_get_native_patchbay_cv_plugin
-SYMBOLS_NATIVE += -Wl,-exported_symbol,_carla_create_native_plugin_host_handle
-SYMBOLS_NATIVE += -Wl,-exported_symbol,_carla_host_handle_free
-SYMBOLS_NATIVE += -Wl,-exported_symbol,_carla_get_native_plugin_engine
-SYMBOLS_NATIVE += -Wl,-exported_symbol,_carla_get_library_filename
-SYMBOLS_NATIVE += -Wl,-exported_symbol,_carla_get_library_folder
-SYMBOLS_LV2     = -Wl,-exported_symbol,_lv2_descriptor
+ifeq ($(WIN32),true)
+SYMBOLS_NATIVE  = symbols/carla-native-plugin.def
+SYMBOLS_VST     = symbols/carla-vst.def
 ifeq ($(HAVE_PYQT),true)
-SYMBOLS_LV2    += -Wl,-exported_symbol,_lv2ui_descriptor
-SYMBOLS_LV2_UI  = -Wl,-exported_symbol,_lv2ui_descriptor
+SYMBOLS_LV2     = symbols/carla-lv2_dsp+ui.def
+SYMBOLS_LV2_UI  = symbols/carla-lv2_ui.def
+else
+SYMBOLS_LV2     = symbols/carla-lv2_dsp.def
 endif
-SYMBOLS_VST     = -Wl,-exported_symbol,_VSTPluginMain
+else ifeq ($(MACOS),true)
+SYMBOLS_NATIVE = -Wl,-export-symbols=symbols/carla-native-plugin.txt
+SYMBOLS_VST    = -Wl,-export-symbols=symbols/carla-vst.txt
+ifeq ($(HAVE_PYQT),true)
+SYMBOLS_LV2     = -Wl,-export-symbols=symbols/carla-lv2_dsp+ui.txt
+SYMBOLS_LV2_UI  = -Wl,-export-symbols=symbols/carla-lv2_ui.txt
+else
+SYMBOLS_LV2     = -Wl,-export-symbols=symbols/carla-lv2_dsp.txt
 endif
-
-ifeq ($(WIN32),true)
-SYMBOLS_NATIVE  = win-def/carla-native-plugin.def
+else
+SYMBOLS_NATIVE = -Wl,--version-script=symbols/carla-native-plugin.version
+SYMBOLS_VST    = -Wl,--version-script=symbols/carla-vst.version
 ifeq ($(HAVE_PYQT),true)
-SYMBOLS_LV2     = win-def/carla-lv2_dsp+ui.def
-SYMBOLS_LV2_UI  = win-def/carla-lv2_ui.def
+SYMBOLS_LV2     = -Wl,--version-script=symbols/carla-lv2_dsp+ui.version
+SYMBOLS_LV2_UI  = -Wl,--version-script=symbols/carla-lv2_ui.version
 else
-SYMBOLS_LV2     = win-def/carla-lv2_dsp.def
+SYMBOLS_LV2     = -Wl,--version-script=symbols/carla-lv2_dsp.version
 endif
-SYMBOLS_VST     = win-def/carla-vst.def
 endif
 
 # ---------------------------------------------------------------------------------------------------------------------

source/plugin/carla-vst-export.cpp

@@ -1,6 +1,6 @@
 /*
  * Carla Native Plugins
- * Copyright (C) 2013-2019 Filipe Coelho <falktx@falktx.com>
+ * Copyright (C) 2013-2020 Filipe Coelho <falktx@falktx.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -50,11 +50,7 @@ __cdecl static void cvst_processReplacingCallback(AEffect* effect, float** input
 #endif
 
 CARLA_EXPORT __cdecl
-#if defined(CARLA_OS_WIN) || defined(CARLA_OS_MAC)
 const AEffect* VSTPluginMain(audioMasterCallback audioMaster);
-#else
-const AEffect* VSTPluginMain(audioMasterCallback audioMaster) asm ("main");
-#endif
 
 CARLA_EXPORT __cdecl
 const AEffect* VSTPluginMain(audioMasterCallback audioMaster)
@@ -94,6 +90,17 @@ const AEffect* VSTPluginMain(audioMasterCallback audioMaster)
     return VSTPluginMainInit(effect);
 }
 
+#if ! (defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN))
+CARLA_EXPORT __cdecl
+const AEffect* VSTPluginMain_asm(audioMasterCallback audioMaster) asm ("main");
+
+CARLA_EXPORT __cdecl
+const AEffect* VSTPluginMain_asm(audioMasterCallback audioMaster)
+{
+    return VSTPluginMain(audioMaster);
+}
+#endif
+
 intptr_t VSTAudioMaster(AEffect* effect, int32_t opcode, int32_t index, intptr_t value, void* ptr, float opt)
 {
     const audioMasterCallback audioMaster = (audioMasterCallback)((VstObject*)effect->object)->audioMaster;

source/plugin/symbols/carla-lv2_dsp+ui.txt

@@ -0,0 +1,2 @@
+lv2_descriptor
+lv2ui_descriptor

source/plugin/symbols/carla-lv2_dsp+ui.version

@@ -0,0 +1,4 @@
+{
+    global: lv2_descriptor; lv2ui_descriptor;
+    local: *;
+};

source/plugin/symbols/carla-lv2_dsp.txt

@@ -0,0 +1 @@
+lv2_descriptor

source/plugin/symbols/carla-lv2_dsp.version

@@ -0,0 +1,4 @@
+{
+    global: lv2_descriptor;
+    local: *;
+};

source/plugin/symbols/carla-lv2_ui.txt

@@ -0,0 +1 @@
+lv2ui_descriptor

source/plugin/symbols/carla-lv2_ui.version

@@ -0,0 +1,4 @@
+{
+    global: lv2ui_descriptor;
+    local: *;
+};

source/plugin/symbols/carla-native-plugin.txt

@@ -0,0 +1,10 @@
+carla_get_native_patchbay_plugin
+carla_get_native_patchbay16_plugin
+carla_get_native_patchbay32_plugin
+carla_get_native_patchbay64_plugin
+carla_get_native_patchbay_cv_plugin
+carla_create_native_plugin_host_handle
+carla_host_handle_free
+carla_get_native_plugin_engine
+carla_get_library_filename
+carla_get_library_folder

source/plugin/symbols/carla-native-plugin.version

@@ -0,0 +1,13 @@
+{
+    global: carla_get_native_patchbay_plugin;
+            carla_get_native_patchbay16_plugin;
+            carla_get_native_patchbay32_plugin;
+            carla_get_native_patchbay64_plugin;
+            carla_get_native_patchbay_cv_plugin;
+            carla_create_native_plugin_host_handle;
+            carla_host_handle_free;
+            carla_get_native_plugin_engine;
+            carla_get_library_filename;
+            carla_get_library_folder;
+    local: *;
+};

source/plugin/symbols/carla-vst.txt

@@ -0,0 +1 @@
+VSTPluginMain

source/plugin/symbols/carla-vst.version

@@ -0,0 +1,4 @@
+{
+    global: VSTPluginMain; main;
+    local: *;
+};