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-rw-r--r--backends/plugins/elf-provider.cpp94
-rw-r--r--backends/plugins/elf-provider.h52
2 files changed, 78 insertions, 68 deletions
diff --git a/backends/plugins/elf-provider.cpp b/backends/plugins/elf-provider.cpp
index 226ac06469..4e1f277fb8 100644
--- a/backends/plugins/elf-provider.cpp
+++ b/backends/plugins/elf-provider.cpp
@@ -23,90 +23,48 @@
*
*/
-#if defined(DYNAMIC_MODULES) && defined(ELF_LOADER_TARGET)
-
#include "backends/plugins/elf-provider.h"
#include "backends/plugins/dynamic-plugin.h"
#include "common/fs.h"
#include "backends/plugins/elf-loader.h"
-class ELFPlugin : public DynamicPlugin {
-protected:
- DLObject *_dlHandle;
- Common::String _filename;
-
- virtual VoidFunc findSymbol(const char *symbol) {
- void *func;
- bool handleNull;
- if (_dlHandle == NULL) {
- func = NULL;
- handleNull = true;
- } else {
- func = _dlHandle->symbol(symbol);
- }
- if (!func) {
- if (handleNull) {
- warning("Failed loading symbol '%s' from plugin '%s' (Handle is NULL)", symbol, _filename.c_str());
- } else {
- warning("Failed loading symbol '%s' from plugin '%s'", symbol, _filename.c_str());
- }
- }
+#if defined(DYNAMIC_MODULES) && defined(ELF_LOADER_TARGET)
- // FIXME HACK: This is a HACK to circumvent a clash between the ISO C++
- // standard and POSIX: ISO C++ disallows casting between function pointers
- // and data pointers, but dlsym always returns a void pointer. For details,
- // see e.g. <http://www.trilithium.com/johan/2004/12/problem-with-dlsym/>.
- assert(sizeof(VoidFunc) == sizeof(func));
- VoidFunc tmp;
- memcpy(&tmp, &func, sizeof(VoidFunc));
- return tmp;
+bool ELFPlugin::loadPlugin() {
+ assert(!_dlHandle);
+ DLObject *obj = new DLObject(NULL);
+ if (obj->open(_filename.c_str())) {
+ _dlHandle = obj;
+ } else {
+ delete obj;
+ _dlHandle = NULL;
}
-public:
- ELFPlugin(const Common::String &filename)
- : _dlHandle(0), _filename(filename) {}
-
- ~ELFPlugin() {
- if (_dlHandle)
- unloadPlugin();
+ if (!_dlHandle) {
+ warning("Failed loading plugin '%s'", _filename.c_str());
+ return false;
}
- bool loadPlugin() {
- assert(!_dlHandle);
- DLObject *obj = new DLObject(NULL);
- if (obj->open(_filename.c_str())) {
- _dlHandle = obj;
- } else {
- delete obj;
- _dlHandle = NULL;
- }
+ bool ret = DynamicPlugin::loadPlugin();
- if (!_dlHandle) {
- warning("Failed loading plugin '%s'", _filename.c_str());
- return false;
- }
-
- bool ret = DynamicPlugin::loadPlugin();
-
- if (ret && _dlHandle) {
- _dlHandle->discard_symtab();
- }
-
- return ret;
+ if (ret && _dlHandle) {
+ _dlHandle->discard_symtab();
}
- void unloadPlugin() {
- DynamicPlugin::unloadPlugin();
- if (_dlHandle) {
- delete _dlHandle;
- if (!_dlHandle->close()) {
- warning("Failed unloading plugin '%s'", _filename.c_str());
- }
- _dlHandle = 0;
+ return ret;
+}
+
+void ELFPlugin::unloadPlugin() {
+ DynamicPlugin::unloadPlugin();
+ if (_dlHandle) {
+ delete _dlHandle;
+ if (!_dlHandle->close()) {
+ warning("Failed unloading plugin '%s'", _filename.c_str());
}
+ _dlHandle = 0;
}
-};
+}
Plugin* ELFPluginProvider::createPlugin(const Common::FSNode &node) const {
diff --git a/backends/plugins/elf-provider.h b/backends/plugins/elf-provider.h
index a6b55d97f3..981d0d0638 100644
--- a/backends/plugins/elf-provider.h
+++ b/backends/plugins/elf-provider.h
@@ -27,9 +27,61 @@
#define BACKENDS_PLUGINS_ELF_PROVIDER_H
#include "base/plugins.h"
+#include "backends/plugins/dynamic-plugin.h"
+#include "common/fs.h"
+
+#include "backends/plugins/elf-loader.h"
#if defined(DYNAMIC_MODULES) && defined(ELF_LOADER_TARGET)
+class ELFPlugin : public DynamicPlugin {
+protected:
+ DLObject *_dlHandle;
+ Common::String _filename;
+
+ //FIXME: The code for this method should be in elf-provider.cpp,
+ // but VoidFunc isn't recognized if we do that as is.
+ virtual VoidFunc findSymbol(const char *symbol) {
+ void *func;
+ bool handleNull;
+ if (_dlHandle == NULL) {
+ func = NULL;
+ handleNull = true;
+ } else {
+ func = _dlHandle->symbol(symbol);
+ }
+ if (!func) {
+ if (handleNull) {
+ warning("Failed loading symbol '%s' from plugin '%s' (Handle is NULL)", symbol, _filename.c_str());
+ } else {
+ warning("Failed loading symbol '%s' from plugin '%s'", symbol, _filename.c_str());
+ }
+ }
+
+ // FIXME HACK: This is a HACK to circumvent a clash between the ISO C++
+ // standard and POSIX: ISO C++ disallows casting between function pointers
+ // and data pointers, but dlsym always returns a void pointer. For details,
+ // see e.g. <http://www.trilithium.com/johan/2004/12/problem-with-dlsym/>.
+ assert(sizeof(VoidFunc) == sizeof(func));
+ VoidFunc tmp;
+ memcpy(&tmp, &func, sizeof(VoidFunc));
+ return tmp;;
+ }
+
+public:
+ ELFPlugin(const Common::String &filename)
+ : _dlHandle(0), _filename(filename) {}
+
+ ~ELFPlugin() {
+ if (_dlHandle)
+ unloadPlugin();
+ }
+
+ bool loadPlugin();
+ void unloadPlugin();
+
+};
+
class ELFPluginProvider : public FilePluginProvider {
protected:
Plugin* createPlugin(const Common::FSNode &node) const;