Merge from gsoc2010-plugins

This merge was extremely difficult to carry out. It wasn't entirely SVN's fault -- there were several merges to the branch that were done by hand. Please check for any issues and regressions. Also note that the DS makefile was not copied over since the "one at a time" plugin mode currently has too much fragmentation ie. it doesn't work.

svn-id: r54051

3 files changed, 333 insertions, 3 deletions

diff --git a/backends/plugins/ds/ds-provider.cpp b/backends/plugins/ds/ds-provider.cpp
index 2995a4d0e7..c188b6c9df 100644
--- a/backends/plugins/ds/ds-provider.cpp
+++ b/backends/plugins/ds/ds-provider.cpp
@@ -1 +1,75 @@
-dummy
\ No newline at end of file
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#if defined(DYNAMIC_MODULES) && defined(__DS__)
+
+#include <malloc.h>
+#include <nds.h>
+
+#include "backends/plugins/ds/ds-provider.h"
+#include "backends/plugins/elf/arm-loader.h"
+
+class DSDLObject : public ARMDLObject {
+public:
+	DSDLObject() :
+		ARMDLObject() {
+	}
+
+	virtual ~DSDLObject() {
+		unload();
+	}
+
+protected:
+	virtual void *allocSegment(size_t boundary, size_t size) const {
+		return memalign(boundary, size);
+	}
+
+	virtual void freeSegment(void *segment) const {
+		free(segment);
+	}
+
+	virtual void flushDataCache(void *ptr, uint32 len) const {
+		DC_FlushRange(ptr, len);
+		IC_InvalidateRange(ptr, len);
+	}
+};
+
+class DSPlugin : public ELFPlugin {
+public:
+	DSPlugin(const Common::String &filename) :
+		ELFPlugin(filename) {
+	}
+
+	virtual DLObject *makeDLObject() {
+		return new DSDLObject();
+	}
+};
+
+Plugin *DSPluginProvider::createPlugin(const Common::FSNode &node) const {
+	return new DSPlugin(node.getPath());
+}
+
+#endif // defined(DYNAMIC_MODULES) && defined(__DS__)
+
diff --git a/backends/plugins/ds/ds-provider.h b/backends/plugins/ds/ds-provider.h
index 5692c8a07b..dcb93c085f 100644
--- a/backends/plugins/ds/ds-provider.h
+++ b/backends/plugins/ds/ds-provider.h
@@ -1 +1,41 @@
-dummy 
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#if defined(DYNAMIC_MODULES) && defined(__DS__)
+
+#ifndef BACKENDS_PLUGINS_DS_PROVIDER_H
+#define BACKENDS_PLUGINS_DS_PROVIDER_H
+
+#include "backends/plugins/elf/elf-provider.h"
+
+class DSPluginProvider : public ELFPluginProvider {
+public:
+	Plugin *createPlugin(const Common::FSNode &node) const;
+};
+
+#endif // BACKENDS_PLUGINS_DS_PROVIDER_H
+
+#endif // defined(DYNAMIC_MODULES) && defined(__DS__)
+
diff --git a/backends/plugins/ds/plugin.ld b/backends/plugins/ds/plugin.ld
index 5692c8a07b..04035b0169 100644
--- a/backends/plugins/ds/plugin.ld
+++ b/backends/plugins/ds/plugin.ld
@@ -1 +1,217 @@
-dummy 
+OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+
+/* PHDRS specifies ELF Program Headers (or segments) to the plugin linker */
+PHDRS {
+  plugin PT_LOAD ; /* Specifies that the plugin segment should be loaded from file */
+}
+
+SECTIONS
+{
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+  . = 0;
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+      *(.rel.dtors)
+      *(.rel.got)
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+      PROVIDE_HIDDEN (__rel_iplt_start = .);
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+    KEEP (*(.init))
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+  {
+    KEEP (*(.fini))
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+  PROVIDE (etext = .);
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+  .rodata1        : { *(.rodata1) }
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+   __exidx_start = .;
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+  /* Adjust the address for the data segment.  We want to adjust up to
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+  /* Exception handling  */
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+}