//
//===----------------------------------------------------------------------===//
-#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 ObjectImage;
-// RuntimeDyld clients often want to handle the memory management of
-// what gets placed where. For JIT clients, this is the subset of
-// JITMemoryManager required for dynamic loading of binaries.
-//
-// 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&) LLVM_DELETED_FUNCTION;
- void operator=(const RTDyldMemoryManager&) LLVM_DELETED_FUNCTION;
-public:
- RTDyldMemoryManager() {}
- virtual ~RTDyldMemoryManager();
-
- /// allocateCodeSection - Allocate a memory block of (at least) the given
- /// size suitable for executable code. The SectionID is a unique identifier
- /// assigned by the JIT engine, and optionally recorded by the memory manager
- /// to access a loaded section.
- virtual uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment,
- unsigned SectionID) = 0;
-
- /// allocateDataSection - Allocate a memory block of (at least) the given
- /// size suitable for data. The SectionID is a unique identifier
- /// assigned by the JIT engine, and optionally recorded by the memory manager
- /// to access a loaded section.
- virtual uint8_t *allocateDataSection(uintptr_t Size, unsigned Alignment,
- unsigned SectionID) = 0;
-
- /// getPointerToNamedFunction - This method returns the address of the
- /// specified function. As such it is only useful for resolving library
- /// symbols, not code generated symbols.
- ///
- /// If AbortOnFailure is false and no function with the given name is
- /// found, this function returns a null pointer. Otherwise, it prints a
- /// message to stderr and aborts.
- virtual void *getPointerToNamedFunction(const std::string &Name,
- bool AbortOnFailure = true) = 0;
-};
-
class RuntimeDyld {
RuntimeDyld(const RuntimeDyld &) LLVM_DELETED_FUNCTION;
void operator=(const RuntimeDyld &) LLVM_DELETED_FUNCTION;
RuntimeDyld(RTDyldMemoryManager *);
~RuntimeDyld();
- /// loadObject - 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.
+ /// 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).
/// Resolve the relocations for all symbols we currently know about.
void resolveRelocations();
- /// mapSectionAddress - map a section to its target address space value.
+ /// 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();
};