/usr/include/llvm-3.5/llvm/ExecutionEngine/RuntimeDyld.h is in llvm-3.5-dev 1:3.5-4ubuntu2~trusty2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | //===-- RuntimeDyld.h - Run-time dynamic linker for MC-JIT ------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Interface for the runtime dynamic linker facilities of the MC-JIT.
//
//===----------------------------------------------------------------------===//
#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;
class RuntimeDyld {
friend class RuntimeDyldChecker;
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;
bool ProcessAllSections;
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(RTDyldMemoryManager *);
~RuntimeDyld();
/// 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(std::unique_ptr<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);
/// 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();
bool hasError();
StringRef getErrorString();
/// By default, only sections that are "required for execution" are passed to
/// the RTDyldMemoryManager, and other sections are discarded. Passing 'true'
/// to this method will cause RuntimeDyld to pass all sections to its
/// memory manager regardless of whether they are "required to execute" in the
/// usual sense. This is useful for inspecting metadata sections that may not
/// contain relocations, E.g. Debug info, stackmaps.
///
/// Must be called before the first object file is loaded.
void setProcessAllSections(bool ProcessAllSections) {
assert(!Dyld && "setProcessAllSections must be called before loadObject.");
this->ProcessAllSections = ProcessAllSections;
}
};
} // end namespace llvm
#endif
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