From ae408db07f05407c41ed4831e4e23991574588d6 Mon Sep 17 00:00:00 2001
From: Andre Heider
Date: Mon, 6 Sep 2010 20:34:00 +0000
Subject: PLUGINS: Use the C++ ABI to call dtors when unloading a plugin.

Avoid linking all plugins against libstdc++ to free up some memory
(about ~40kb on Wii per plugin). Enable it on GameCube, Wii, DS and PSP
(PS2 doesn't have __cxa_atexit support in its libc).

svn-id: r52607
---
 base/plugins.h | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'base/plugins.h')

diff --git a/base/plugins.h b/base/plugins.h
index 84b1af5599..eb7e93ddba 100644
--- a/base/plugins.h
+++ b/base/plugins.h
@@ -90,6 +90,13 @@ extern int pluginTypeVersions[PLUGIN_TYPE_MAX];
 #define PLUGIN_ENABLED_DYNAMIC(ID) \
 	(ENABLE_##ID && (ENABLE_##ID == DYNAMIC_PLUGIN) && DYNAMIC_MODULES)
 
+// see comments in backends/plugins/elf/elf-provider.cpp
+#if defined(ELF_LOADER_TARGET) && defined(ELF_LOADER_CXA_ATEXIT)
+#define PLUGIN_DYNAMIC_EXTRA_DECL uint32 __dso_handle __attribute__((visibility ("hidden"))) = 0
+#else
+#define PLUGIN_DYNAMIC_EXTRA_DECL
+#endif
+
 /**
  * REGISTER_PLUGIN_STATIC is a convenience macro which is used to declare
  * the plugin interface for static plugins. Code (such as game engines)
@@ -119,6 +126,7 @@ extern int pluginTypeVersions[PLUGIN_TYPE_MAX];
  */
 #define REGISTER_PLUGIN_DYNAMIC(ID,TYPE,PLUGINCLASS) \
 	extern "C" { \
+		PLUGIN_DYNAMIC_EXTRA_DECL; \
 		PLUGIN_EXPORT int32 PLUGIN_getVersion() { return PLUGIN_VERSION; } \
 		PLUGIN_EXPORT int32 PLUGIN_getType() { return TYPE; } \
 		PLUGIN_EXPORT int32 PLUGIN_getTypeVersion() { return TYPE##_VERSION; } \
-- 
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