//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_RUNTIME_DYLD_H
-#define LLVM_RUNTIME_DYLD_H
+#ifndef LLVM_EXECUTIONENGINE_RUNTIMEDYLD_H
+#define LLVM_EXECUTIONENGINE_RUNTIMEDYLD_H
#include "llvm/ADT/StringRef.h"
+#include "llvm/ExecutionEngine/ObjectBuffer.h"
+#include "llvm/ExecutionEngine/RTDyldMemoryManager.h"
#include "llvm/Support/Memory.h"
namespace llvm {
+namespace object {
+ class ObjectFile;
+}
+
class RuntimeDyldImpl;
-class MemoryBuffer;
-class JITMemoryManager;
+class ObjectImage;
class RuntimeDyld {
- RuntimeDyld(const RuntimeDyld &); // DO NOT IMPLEMENT
- void operator=(const RuntimeDyld &); // DO NOT IMPLEMENT
+ RuntimeDyld(const RuntimeDyld &) LLVM_DELETED_FUNCTION;
+ void operator=(const RuntimeDyld &) LLVM_DELETED_FUNCTION;
// RuntimeDyldImpl is the actual class. RuntimeDyld is just the public
// interface.
RuntimeDyldImpl *Dyld;
+ RTDyldMemoryManager *MM;
+protected:
+ // Change the address associated with a section when resolving relocations.
+ // Any relocations already associated with the symbol will be re-resolved.
+ void reassignSectionAddress(unsigned SectionID, uint64_t Addr);
public:
- RuntimeDyld(JITMemoryManager*);
+ RuntimeDyld(RTDyldMemoryManager *);
~RuntimeDyld();
- bool loadObject(MemoryBuffer *InputBuffer);
+ /// Prepare the object contained in the input buffer for execution.
+ /// Ownership of the input buffer is transferred to the ObjectImage
+ /// instance returned from this function if successful. In the case of load
+ /// failure, the input buffer will be deleted.
+ ObjectImage *loadObject(ObjectBuffer *InputBuffer);
+
+ /// Prepare the referenced object file for execution.
+ /// Ownership of the input object is transferred to the ObjectImage
+ /// instance returned from this function if successful. In the case of load
+ /// failure, the input object will be deleted.
+ ObjectImage *loadObject(object::ObjectFile *InputObject);
+
+ /// Get the address of our local copy of the symbol. This may or may not
+ /// be the address used for relocation (clients can copy the data around
+ /// and resolve relocatons based on where they put it).
void *getSymbolAddress(StringRef Name);
- // FIXME: Should be parameterized to get the memory block associated with
- // a particular loaded object.
- sys::MemoryBlock getMemoryBlock();
+
+ /// Get the address of the target copy of the symbol. This is the address
+ /// used for relocation.
+ uint64_t getSymbolLoadAddress(StringRef Name);
+
+ /// Resolve the relocations for all symbols we currently know about.
+ void resolveRelocations();
+
+ /// Map a section to its target address space value.
+ /// Map the address of a JIT section as returned from the memory manager
+ /// to the address in the target process as the running code will see it.
+ /// This is the address which will be used for relocation resolution.
+ void mapSectionAddress(const void *LocalAddress, uint64_t TargetAddress);
+
+ /// Register any EH frame sections that have been loaded but not previously
+ /// registered with the memory manager. Note, RuntimeDyld is responsible
+ /// for identifying the EH frame and calling the memory manager with the
+ /// EH frame section data. However, the memory manager itself will handle
+ /// the actual target-specific EH frame registration.
+ void registerEHFrames();
+
+ void deregisterEHFrames();
+
StringRef getErrorString();
};