Introduce ObjectLoader and RSExecutable.
ObjectLoader loads an object file into memory.
ObjectLoaderImpl defines a set of format-independent interfaces
that a object file format loader has to provide.
ELFObjectLoaderImpl is a subclass of ObjectLoaderImpl and can be used
to load an ELF relocatable object built based on librsloader. It
directly uses the C++ APIs provided by librsloader instead of using
wrapped C APIs defined in librsloader.h
RSExecutable holds the build results of a RSScript.
diff --git a/lib/ExecutionEngine/ELFObjectLoaderImpl.h b/lib/ExecutionEngine/ELFObjectLoaderImpl.h
new file mode 100644
index 0000000..37766fb
--- /dev/null
+++ b/lib/ExecutionEngine/ELFObjectLoaderImpl.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2012, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef BCC_EXECUTION_ENGINE_ELF_OBJECT_LOADER_IMPL_H
+#define BCC_EXECUTION_ENGINE_ELF_OBJECT_LOADER_IMPL_H
+
+#include "ObjectLoaderImpl.h"
+
+// ELFObject and ELFSectionSymTab comes from librsloader. They're both
+// defined under global scope without a namespace enclosed.
+template <unsigned Bitwidth>
+class ELFObject;
+
+template <unsigned Bitwidth>
+class ELFSectionSymTab;
+
+namespace bcc {
+
+class ELFObjectLoaderImpl : public ObjectLoaderImpl {
+private:
+ ELFObject<32> *mObject;
+ ELFSectionSymTab<32> *mSymTab;
+
+public:
+ ELFObjectLoaderImpl() : ObjectLoaderImpl(), mObject(NULL), mSymTab(NULL) { }
+
+ virtual bool load(const void *pMem, size_t pMemSize);
+
+ virtual bool relocate(SymbolResolverInterface &pResolver);
+
+ virtual bool prepareDebugImage(void *pDebugImg, size_t pDebugImgSize);
+
+ virtual void *getSymbolAddress(const char *pName) const;
+
+ ~ELFObjectLoaderImpl();
+};
+
+} // end namespace bcc
+
+#endif // BCC_EXECUTION_ENGINE_ELF_OBJECT_LOADER_IMPL_H