6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
78 lines
3.2 KiB
C++
78 lines
3.2 KiB
C++
//===------------ EPCDynamicLibrarySearchGenerator.h ------------*- 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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// Support loading and searching of dynamic libraries in an executor process
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// via the ExecutorProcessControl class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_EXECUTIONENGINE_ORC_EPCDYNAMICLIBRARYSEARCHGENERATOR_H
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#define LLVM_EXECUTIONENGINE_ORC_EPCDYNAMICLIBRARYSEARCHGENERATOR_H
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#include "llvm/ADT/FunctionExtras.h"
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#include "llvm/ExecutionEngine/Orc/Core.h"
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namespace llvm {
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namespace orc {
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class ExecutorProcessControl;
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class EPCDynamicLibrarySearchGenerator : public DefinitionGenerator {
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public:
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using SymbolPredicate = unique_function<bool(const SymbolStringPtr &)>;
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using AddAbsoluteSymbolsFn = unique_function<Error(JITDylib &, SymbolMap)>;
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/// Create a DynamicLibrarySearchGenerator that searches for symbols in the
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/// library with the given handle.
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///
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/// If the Allow predicate is given then only symbols matching the predicate
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/// will be searched for. If the predicate is not given then all symbols will
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/// be searched for.
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///
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/// If \p AddAbsoluteSymbols is provided, it is used to add the symbols to the
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/// \c JITDylib; otherwise it uses JD.define(absoluteSymbols(...)).
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EPCDynamicLibrarySearchGenerator(
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ExecutionSession &ES, tpctypes::DylibHandle H,
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SymbolPredicate Allow = SymbolPredicate(),
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AddAbsoluteSymbolsFn AddAbsoluteSymbols = nullptr)
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: EPC(ES.getExecutorProcessControl()), H(H), Allow(std::move(Allow)),
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AddAbsoluteSymbols(std::move(AddAbsoluteSymbols)) {}
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/// Permanently loads the library at the given path and, on success, returns
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/// a DynamicLibrarySearchGenerator that will search it for symbol definitions
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/// in the library. On failure returns the reason the library failed to load.
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static Expected<std::unique_ptr<EPCDynamicLibrarySearchGenerator>>
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Load(ExecutionSession &ES, const char *LibraryPath,
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SymbolPredicate Allow = SymbolPredicate(),
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AddAbsoluteSymbolsFn AddAbsoluteSymbols = nullptr);
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/// Creates a EPCDynamicLibrarySearchGenerator that searches for symbols in
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/// the target process.
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static Expected<std::unique_ptr<EPCDynamicLibrarySearchGenerator>>
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GetForTargetProcess(ExecutionSession &ES,
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SymbolPredicate Allow = SymbolPredicate(),
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AddAbsoluteSymbolsFn AddAbsoluteSymbols = nullptr) {
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return Load(ES, nullptr, std::move(Allow), std::move(AddAbsoluteSymbols));
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}
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Error tryToGenerate(LookupState &LS, LookupKind K, JITDylib &JD,
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JITDylibLookupFlags JDLookupFlags,
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const SymbolLookupSet &Symbols) override;
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private:
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ExecutorProcessControl &EPC;
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tpctypes::DylibHandle H;
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SymbolPredicate Allow;
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AddAbsoluteSymbolsFn AddAbsoluteSymbols;
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};
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} // end namespace orc
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} // end namespace llvm
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#endif // LLVM_EXECUTIONENGINE_ORC_EPCDYNAMICLIBRARYSEARCHGENERATOR_H
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