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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167968 91177308-0d34-0410-b5e6-96231b3b80d8
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Jakub Staszak
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Nov 14, 2012
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//===---- ObjectBuffer.h - Utility class to wrap object image memory -----===// | ||
// | ||
// The LLVM Compiler Infrastructure | ||
// | ||
// This file is distributed under the University of Illinois Open Source | ||
// License. See LICENSE.TXT for details. | ||
// | ||
//===----------------------------------------------------------------------===// | ||
// | ||
// This file declares a wrapper class to hold the memory into which an | ||
// object will be generated. | ||
// | ||
//===----------------------------------------------------------------------===// | ||
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#ifndef LLVM_EXECUTIONENGINE_OBJECTBUFFER_H | ||
#define LLVM_EXECUTIONENGINE_OBJECTBUFFER_H | ||
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#include "llvm/ADT/SmallVector.h" | ||
#include "llvm/ADT/OwningPtr.h" | ||
#include "llvm/Support/raw_ostream.h" | ||
#include "llvm/Support/MemoryBuffer.h" | ||
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namespace llvm { | ||
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/// ObjectBuffer - This class acts as a container for the memory buffer used during | ||
/// generation and loading of executable objects using MCJIT and RuntimeDyld. The | ||
/// underlying memory for the object will be owned by the ObjectBuffer instance | ||
/// throughout its lifetime. The getMemBuffer() method provides a way to create a | ||
/// MemoryBuffer wrapper object instance to be owned by other classes (such as | ||
/// ObjectFile) as needed, but the MemoryBuffer instance returned does not own the | ||
/// actual memory it points to. | ||
class ObjectBuffer { | ||
public: | ||
ObjectBuffer() {} | ||
ObjectBuffer(MemoryBuffer* Buf) : Buffer(Buf) {} | ||
virtual ~ObjectBuffer() {} | ||
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/// getMemBuffer - Like MemoryBuffer::getMemBuffer() this function | ||
/// returns a pointer to an object that is owned by the caller. However, | ||
/// the caller does not take ownership of the underlying memory. | ||
MemoryBuffer *getMemBuffer() const { | ||
return MemoryBuffer::getMemBuffer(Buffer->getBuffer(), "", false); | ||
} | ||
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const char *getBufferStart() const { return Buffer->getBufferStart(); } | ||
size_t getBufferSize() const { return Buffer->getBufferSize(); } | ||
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protected: | ||
// The memory contained in an ObjectBuffer | ||
OwningPtr<MemoryBuffer> Buffer; | ||
}; | ||
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/// ObjectBufferStream - This class encapsulates the SmallVector and | ||
/// raw_svector_ostream needed to generate an object using MC code emission | ||
/// while providing a common ObjectBuffer interface for access to the | ||
/// memory once the object has been generated. | ||
class ObjectBufferStream : public ObjectBuffer { | ||
public: | ||
ObjectBufferStream() : OS(SV) {} | ||
virtual ~ObjectBufferStream() {} | ||
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raw_ostream &getOStream() { return OS; } | ||
void flush() | ||
{ | ||
OS.flush(); | ||
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// Make the data accessible via the ObjectBuffer::Buffer | ||
Buffer.reset(MemoryBuffer::getMemBuffer(StringRef(SV.data(), SV.size()), | ||
"", | ||
false)); | ||
} | ||
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protected: | ||
SmallVector<char, 4096> SV; // Working buffer into which we JIT. | ||
raw_svector_ostream OS; // streaming wrapper | ||
}; | ||
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} // namespace llvm | ||
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#endif | ||
//===---- ObjectBuffer.h - Utility class to wrap object image memory -----===// | ||
// | ||
// The LLVM Compiler Infrastructure | ||
// | ||
// This file is distributed under the University of Illinois Open Source | ||
// License. See LICENSE.TXT for details. | ||
// | ||
//===----------------------------------------------------------------------===// | ||
// | ||
// This file declares a wrapper class to hold the memory into which an | ||
// object will be generated. | ||
// | ||
//===----------------------------------------------------------------------===// | ||
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#ifndef LLVM_EXECUTIONENGINE_OBJECTBUFFER_H | ||
#define LLVM_EXECUTIONENGINE_OBJECTBUFFER_H | ||
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#include "llvm/ADT/SmallVector.h" | ||
#include "llvm/ADT/OwningPtr.h" | ||
#include "llvm/Support/raw_ostream.h" | ||
#include "llvm/Support/MemoryBuffer.h" | ||
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namespace llvm { | ||
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/// ObjectBuffer - This class acts as a container for the memory buffer used during | ||
/// generation and loading of executable objects using MCJIT and RuntimeDyld. The | ||
/// underlying memory for the object will be owned by the ObjectBuffer instance | ||
/// throughout its lifetime. The getMemBuffer() method provides a way to create a | ||
/// MemoryBuffer wrapper object instance to be owned by other classes (such as | ||
/// ObjectFile) as needed, but the MemoryBuffer instance returned does not own the | ||
/// actual memory it points to. | ||
class ObjectBuffer { | ||
public: | ||
ObjectBuffer() {} | ||
ObjectBuffer(MemoryBuffer* Buf) : Buffer(Buf) {} | ||
virtual ~ObjectBuffer() {} | ||
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/// getMemBuffer - Like MemoryBuffer::getMemBuffer() this function | ||
/// returns a pointer to an object that is owned by the caller. However, | ||
/// the caller does not take ownership of the underlying memory. | ||
MemoryBuffer *getMemBuffer() const { | ||
return MemoryBuffer::getMemBuffer(Buffer->getBuffer(), "", false); | ||
} | ||
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const char *getBufferStart() const { return Buffer->getBufferStart(); } | ||
size_t getBufferSize() const { return Buffer->getBufferSize(); } | ||
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protected: | ||
// The memory contained in an ObjectBuffer | ||
OwningPtr<MemoryBuffer> Buffer; | ||
}; | ||
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/// ObjectBufferStream - This class encapsulates the SmallVector and | ||
/// raw_svector_ostream needed to generate an object using MC code emission | ||
/// while providing a common ObjectBuffer interface for access to the | ||
/// memory once the object has been generated. | ||
class ObjectBufferStream : public ObjectBuffer { | ||
public: | ||
ObjectBufferStream() : OS(SV) {} | ||
virtual ~ObjectBufferStream() {} | ||
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raw_ostream &getOStream() { return OS; } | ||
void flush() | ||
{ | ||
OS.flush(); | ||
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// Make the data accessible via the ObjectBuffer::Buffer | ||
Buffer.reset(MemoryBuffer::getMemBuffer(StringRef(SV.data(), SV.size()), | ||
"", | ||
false)); | ||
} | ||
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protected: | ||
SmallVector<char, 4096> SV; // Working buffer into which we JIT. | ||
raw_svector_ostream OS; // streaming wrapper | ||
}; | ||
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} // namespace llvm | ||
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#endif |
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@@ -1,61 +1,61 @@ | ||
//===---- ObjectImage.h - Format independent executuable object image -----===// | ||
// | ||
// The LLVM Compiler Infrastructure | ||
// | ||
// This file is distributed under the University of Illinois Open Source | ||
// License. See LICENSE.TXT for details. | ||
// | ||
//===----------------------------------------------------------------------===// | ||
// | ||
// This file declares a file format independent ObjectImage class. | ||
// | ||
//===----------------------------------------------------------------------===// | ||
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#ifndef LLVM_EXECUTIONENGINE_OBJECTIMAGE_H | ||
#define LLVM_EXECUTIONENGINE_OBJECTIMAGE_H | ||
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#include "llvm/Object/ObjectFile.h" | ||
#include "llvm/ExecutionEngine/ObjectBuffer.h" | ||
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namespace llvm { | ||
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/// ObjectImage - A container class that represents an ObjectFile that has been | ||
/// or is in the process of being loaded into memory for execution. | ||
class ObjectImage { | ||
ObjectImage() LLVM_DELETED_FUNCTION; | ||
ObjectImage(const ObjectImage &other) LLVM_DELETED_FUNCTION; | ||
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protected: | ||
OwningPtr<ObjectBuffer> Buffer; | ||
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public: | ||
ObjectImage(ObjectBuffer *Input) : Buffer(Input) {} | ||
virtual ~ObjectImage() {} | ||
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virtual object::symbol_iterator begin_symbols() const = 0; | ||
virtual object::symbol_iterator end_symbols() const = 0; | ||
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virtual object::section_iterator begin_sections() const = 0; | ||
virtual object::section_iterator end_sections() const = 0; | ||
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virtual /* Triple::ArchType */ unsigned getArch() const = 0; | ||
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// Subclasses can override these methods to update the image with loaded | ||
// addresses for sections and common symbols | ||
virtual void updateSectionAddress(const object::SectionRef &Sec, | ||
uint64_t Addr) = 0; | ||
virtual void updateSymbolAddress(const object::SymbolRef &Sym, | ||
uint64_t Addr) = 0; | ||
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virtual StringRef getData() const = 0; | ||
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// Subclasses can override these methods to provide JIT debugging support | ||
virtual void registerWithDebugger() = 0; | ||
virtual void deregisterWithDebugger() = 0; | ||
}; | ||
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} // end namespace llvm | ||
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#endif // LLVM_RUNTIMEDYLD_OBJECT_IMAGE_H | ||
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//===---- ObjectImage.h - Format independent executuable object image -----===// | ||
// | ||
// The LLVM Compiler Infrastructure | ||
// | ||
// This file is distributed under the University of Illinois Open Source | ||
// License. See LICENSE.TXT for details. | ||
// | ||
//===----------------------------------------------------------------------===// | ||
// | ||
// This file declares a file format independent ObjectImage class. | ||
// | ||
//===----------------------------------------------------------------------===// | ||
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#ifndef LLVM_EXECUTIONENGINE_OBJECTIMAGE_H | ||
#define LLVM_EXECUTIONENGINE_OBJECTIMAGE_H | ||
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#include "llvm/Object/ObjectFile.h" | ||
#include "llvm/ExecutionEngine/ObjectBuffer.h" | ||
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namespace llvm { | ||
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/// ObjectImage - A container class that represents an ObjectFile that has been | ||
/// or is in the process of being loaded into memory for execution. | ||
class ObjectImage { | ||
ObjectImage() LLVM_DELETED_FUNCTION; | ||
ObjectImage(const ObjectImage &other) LLVM_DELETED_FUNCTION; | ||
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protected: | ||
OwningPtr<ObjectBuffer> Buffer; | ||
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public: | ||
ObjectImage(ObjectBuffer *Input) : Buffer(Input) {} | ||
virtual ~ObjectImage() {} | ||
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virtual object::symbol_iterator begin_symbols() const = 0; | ||
virtual object::symbol_iterator end_symbols() const = 0; | ||
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virtual object::section_iterator begin_sections() const = 0; | ||
virtual object::section_iterator end_sections() const = 0; | ||
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virtual /* Triple::ArchType */ unsigned getArch() const = 0; | ||
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// Subclasses can override these methods to update the image with loaded | ||
// addresses for sections and common symbols | ||
virtual void updateSectionAddress(const object::SectionRef &Sec, | ||
uint64_t Addr) = 0; | ||
virtual void updateSymbolAddress(const object::SymbolRef &Sym, | ||
uint64_t Addr) = 0; | ||
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virtual StringRef getData() const = 0; | ||
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// Subclasses can override these methods to provide JIT debugging support | ||
virtual void registerWithDebugger() = 0; | ||
virtual void deregisterWithDebugger() = 0; | ||
}; | ||
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} // end namespace llvm | ||
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#endif // LLVM_RUNTIMEDYLD_OBJECT_IMAGE_H | ||
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