8f56394487
**Currently we don't make use of the JIT for the wasm use cases so the
approach using the execution engine won't work in these cases.**
Rather if we use dlopen. We should be able to do the following
(demonstrating through a toy project)
1) Make use of LoadDynamicLibrary through the given implementation
```
extern "C" EMSCRIPTEN_KEEPALIVE int load_library(const char *name) {
auto Err = Interp->LoadDynamicLibrary(name);
if (Err) {
llvm::logAllUnhandledErrors(std::move(Err), llvm::errs(), "load_library error: ");
return -1;
}
return 0;
}
```
2) Add a button to call load_library once the library has been added in
our MEMFS (currently we have symengine built as a SIDE MODULE and we are
loading it)
72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
//===--- IncrementalExecutor.h - Incremental Execution ----------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the class which performs incremental code execution.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_LIB_INTERPRETER_INCREMENTALEXECUTOR_H
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#define LLVM_CLANG_LIB_INTERPRETER_INCREMENTALEXECUTOR_H
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ExecutionEngine/Orc/ExecutionUtils.h"
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#include "llvm/ExecutionEngine/Orc/Shared/ExecutorAddress.h"
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#include <memory>
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namespace llvm {
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class Error;
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namespace orc {
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class JITTargetMachineBuilder;
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class LLJIT;
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class LLJITBuilder;
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class ThreadSafeContext;
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} // namespace orc
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} // namespace llvm
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namespace clang {
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struct PartialTranslationUnit;
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class TargetInfo;
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class IncrementalExecutor {
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using CtorDtorIterator = llvm::orc::CtorDtorIterator;
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std::unique_ptr<llvm::orc::LLJIT> Jit;
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llvm::orc::ThreadSafeContext &TSCtx;
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llvm::DenseMap<const PartialTranslationUnit *, llvm::orc::ResourceTrackerSP>
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ResourceTrackers;
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protected:
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IncrementalExecutor(llvm::orc::ThreadSafeContext &TSC);
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public:
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enum SymbolNameKind { IRName, LinkerName };
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IncrementalExecutor(llvm::orc::ThreadSafeContext &TSC,
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llvm::orc::LLJITBuilder &JITBuilder, llvm::Error &Err);
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virtual ~IncrementalExecutor();
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virtual llvm::Error addModule(PartialTranslationUnit &PTU);
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virtual llvm::Error removeModule(PartialTranslationUnit &PTU);
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virtual llvm::Error runCtors() const;
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virtual llvm::Error cleanUp();
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virtual llvm::Expected<llvm::orc::ExecutorAddr>
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getSymbolAddress(llvm::StringRef Name, SymbolNameKind NameKind) const;
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llvm::orc::LLJIT &GetExecutionEngine() { return *Jit; }
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static llvm::Expected<std::unique_ptr<llvm::orc::LLJITBuilder>>
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createDefaultJITBuilder(llvm::orc::JITTargetMachineBuilder JTMB);
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};
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} // end namespace clang
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#endif // LLVM_CLANG_LIB_INTERPRETER_INCREMENTALEXECUTOR_H
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