thirdparty/scummvm
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PLUGINS: Use the C++ ABI to call dtors when unloading a plugin.

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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
This commit is contained in:
Andre Heider 2010-09-06 20:34:00 +00:00
parent c2cafe426e
commit ae408db07f
4 changed files with 76 additions and 6 deletions
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8
base/plugins.h
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@ -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; } \