Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/ExecutionEngine/RTDyldMemoryManager.h b/linux-x64/clang/include/llvm/ExecutionEngine/RTDyldMemoryManager.h
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+//===-- RTDyldMemoryManager.cpp - Memory manager 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 of the runtime dynamic memory manager base class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_EXECUTIONENGINE_RTDYLDMEMORYMANAGER_H
+#define LLVM_EXECUTIONENGINE_RTDYLDMEMORYMANAGER_H
+
+#include "llvm-c/ExecutionEngine.h"
+#include "llvm/ExecutionEngine/JITSymbol.h"
+#include "llvm/ExecutionEngine/RuntimeDyld.h"
+#include "llvm/Support/CBindingWrapping.h"
+#include <cstddef>
+#include <cstdint>
+#include <string>
+
+namespace llvm {
+
+class ExecutionEngine;
+
+namespace object {
+ class ObjectFile;
+} // end namespace object
+
+class MCJITMemoryManager : public RuntimeDyld::MemoryManager {
+public:
+ // Don't hide the notifyObjectLoaded method from RuntimeDyld::MemoryManager.
+ using RuntimeDyld::MemoryManager::notifyObjectLoaded;
+
+ /// This method is called after an object has been loaded into memory but
+ /// before relocations are applied to the loaded sections. The object load
+ /// may have been initiated by MCJIT to resolve an external symbol for another
+ /// object that is being finalized. In that case, the object about which
+ /// the memory manager is being notified will be finalized immediately after
+ /// the memory manager returns from this call.
+ ///
+ /// Memory managers which are preparing code for execution in an external
+ /// address space can use this call to remap the section addresses for the
+ /// newly loaded object.
+ virtual void notifyObjectLoaded(ExecutionEngine *EE,
+ const object::ObjectFile &) {}
+};
+
+// 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 : public MCJITMemoryManager,
+ public LegacyJITSymbolResolver {
+public:
+ RTDyldMemoryManager() = default;
+ RTDyldMemoryManager(const RTDyldMemoryManager&) = delete;
+ void operator=(const RTDyldMemoryManager&) = delete;
+ ~RTDyldMemoryManager() override;
+
+ /// Register EH frames in the current process.
+ static void registerEHFramesInProcess(uint8_t *Addr, size_t Size);
+
+ /// Deregister EH frames in the current proces.
+ static void deregisterEHFramesInProcess(uint8_t *Addr, size_t Size);
+
+ void registerEHFrames(uint8_t *Addr, uint64_t LoadAddr, size_t Size) override;
+ void deregisterEHFrames() override;
+
+ /// This method returns the address of the specified function or variable in
+ /// the current process.
+ static uint64_t getSymbolAddressInProcess(const std::string &Name);
+
+ /// Legacy symbol lookup - DEPRECATED! Please override findSymbol instead.
+ ///
+ /// This method returns the address of the specified function or variable.
+ /// It is used to resolve symbols during module linking.
+ virtual uint64_t getSymbolAddress(const std::string &Name) {
+ return getSymbolAddressInProcess(Name);
+ }
+
+ /// This method returns a RuntimeDyld::SymbolInfo for the specified function
+ /// or variable. It is used to resolve symbols during module linking.
+ ///
+ /// By default this falls back on the legacy lookup method:
+ /// 'getSymbolAddress'. The address returned by getSymbolAddress is treated as
+ /// a strong, exported symbol, consistent with historical treatment by
+ /// RuntimeDyld.
+ ///
+ /// Clients writing custom RTDyldMemoryManagers are encouraged to override
+ /// this method and return a SymbolInfo with the flags set correctly. This is
+ /// necessary for RuntimeDyld to correctly handle weak and non-exported symbols.
+ JITSymbol findSymbol(const std::string &Name) override {
+ return JITSymbol(getSymbolAddress(Name), JITSymbolFlags::Exported);
+ }
+
+ /// Legacy symbol lookup -- DEPRECATED! Please override
+ /// findSymbolInLogicalDylib instead.
+ ///
+ /// Default to treating all modules as separate.
+ virtual uint64_t getSymbolAddressInLogicalDylib(const std::string &Name) {
+ return 0;
+ }
+
+ /// Default to treating all modules as separate.
+ ///
+ /// By default this falls back on the legacy lookup method:
+ /// 'getSymbolAddressInLogicalDylib'. The address returned by
+ /// getSymbolAddressInLogicalDylib is treated as a strong, exported symbol,
+ /// consistent with historical treatment by RuntimeDyld.
+ ///
+ /// Clients writing custom RTDyldMemoryManagers are encouraged to override
+ /// this method and return a SymbolInfo with the flags set correctly. This is
+ /// necessary for RuntimeDyld to correctly handle weak and non-exported symbols.
+ JITSymbol
+ findSymbolInLogicalDylib(const std::string &Name) override {
+ return JITSymbol(getSymbolAddressInLogicalDylib(Name),
+ JITSymbolFlags::Exported);
+ }
+
+ /// This method returns the address of the specified function. As such it is
+ /// only useful for resolving library symbols, not code generated symbols.
+ ///
+ /// If \p 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.
+ ///
+ /// This function is deprecated for memory managers to be used with
+ /// MCJIT or RuntimeDyld. Use getSymbolAddress instead.
+ virtual void *getPointerToNamedFunction(const std::string &Name,
+ bool AbortOnFailure = true);
+
+protected:
+ struct EHFrame {
+ uint8_t *Addr;
+ size_t Size;
+ };
+ typedef std::vector<EHFrame> EHFrameInfos;
+ EHFrameInfos EHFrames;
+};
+
+// Create wrappers for C Binding types (see CBindingWrapping.h).
+DEFINE_SIMPLE_CONVERSION_FUNCTIONS(
+ RTDyldMemoryManager, LLVMMCJITMemoryManagerRef)
+
+} // end namespace llvm
+
+#endif // LLVM_EXECUTIONENGINE_RTDYLDMEMORYMANAGER_H