class RuntimeDyldImpl;
class MemoryBuffer;
-class JITMemoryManager;
+
+// RuntimeDyld clients often want to handle the memory management of
+// what gets placed where. For JIT clients, this is an abstraction layer
+// over the JITMemoryManager, which references objects by their source
+// representations in LLVM IR.
+// FIXME: As the RuntimeDyld fills out, additional routines will be needed
+// for the varying types of objects to be allocated.
+class RTDyldMemoryManager {
+ RTDyldMemoryManager(const RTDyldMemoryManager&); // DO NOT IMPLEMENT
+ void operator=(const RTDyldMemoryManager&); // DO NOT IMPLEMENT
+public:
+ RTDyldMemoryManager() {}
+
+ // Allocate ActualSize bytes, or more, for the named function. Return
+ // a pointer to the allocated memory and update Size to reflect how much
+ // memory was acutally allocated.
+ virtual uint64_t startFunctionBody(const char *Name, uintptr_t &Size) = 0;
+
+ // Mark the end of the function, including how much of the allocated
+ // memory was actually used.
+ virtual void endFunctionBody(const char *Name, uint64_t FunctionStart,
+ uint64_t FunctionEnd) = 0;
+};
class RuntimeDyld {
RuntimeDyld(const RuntimeDyld &); // DO NOT IMPLEMENT
// interface.
RuntimeDyldImpl *Dyld;
public:
- RuntimeDyld(JITMemoryManager*);
+ RuntimeDyld(RTDyldMemoryManager*);
~RuntimeDyld();
bool loadObject(MemoryBuffer *InputBuffer);
- void *getSymbolAddress(StringRef Name);
+ uint64_t getSymbolAddress(StringRef Name);
+ void reassignSymbolAddress(StringRef Name, uint64_t Addr);
// FIXME: Should be parameterized to get the memory block associated with
// a particular loaded object.
sys::MemoryBlock getMemoryBlock();