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A search order is a list of VSOs to be searched linearly to find symbols. Each VSO now has a search order that will be used when fixing up definitions in that VSO. Each VSO's search order defaults to just that VSO itself. This is a first step towards removing symbol resolvers from ORC altogether. In practice symbol resolvers tended to be used to implement a search order anyway, sometimes with additional programatic generation of symbols. Now that VSOs support programmatic generation of definitions via fallback generators, search orders provide a cleaner way to achieve the desired effect (while removing a lot of boilerplate). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@337593 91177308-0d34-0410-b5e6-96231b3b80d8
64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
//===------- Legacy.cpp - Adapters for ExecutionEngine API interop --------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ExecutionEngine/Orc/Legacy.h"
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namespace llvm {
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namespace orc {
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void SymbolResolver::anchor() {}
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JITSymbolResolverAdapter::JITSymbolResolverAdapter(
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ExecutionSession &ES, SymbolResolver &R, MaterializationResponsibility *MR)
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: ES(ES), R(R), MR(MR) {}
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Expected<JITSymbolResolverAdapter::LookupResult>
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JITSymbolResolverAdapter::lookup(const LookupSet &Symbols) {
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SymbolNameSet InternedSymbols;
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for (auto &S : Symbols)
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InternedSymbols.insert(ES.getSymbolStringPool().intern(S));
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auto LookupFn = [&, this](std::shared_ptr<AsynchronousSymbolQuery> Q,
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SymbolNameSet Unresolved) {
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return R.lookup(std::move(Q), std::move(Unresolved));
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};
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auto InternedResult = blockingLookup(ES, std::move(LookupFn),
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std::move(InternedSymbols), false, MR);
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if (!InternedResult)
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return InternedResult.takeError();
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JITSymbolResolver::LookupResult Result;
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for (auto &KV : *InternedResult)
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Result[*KV.first] = KV.second;
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return Result;
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}
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Expected<JITSymbolResolverAdapter::LookupFlagsResult>
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JITSymbolResolverAdapter::lookupFlags(const LookupSet &Symbols) {
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SymbolNameSet InternedSymbols;
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for (auto &S : Symbols)
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InternedSymbols.insert(ES.getSymbolStringPool().intern(S));
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SymbolFlagsMap SymbolFlags;
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R.lookupFlags(SymbolFlags, InternedSymbols);
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LookupFlagsResult Result;
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for (auto &KV : SymbolFlags) {
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ResolvedStrings.insert(KV.first);
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Result[*KV.first] = KV.second;
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}
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return Result;
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}
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} // End namespace orc.
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} // End namespace llvm.
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