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075c1e2e1a
This patch replaces RuntimeDyld::SymbolInfo with JITSymbol: A symbol class that is capable of lazy materialization (i.e. the symbol definition needn't be emitted until the address is requested). This can be used to support common and weak symbols in the JIT (though this is not implemented in this patch). For consistency, RuntimeDyld::SymbolResolver is renamed to JITSymbolResolver. For space efficiency a new class, JITEvaluatedSymbol, is introduced that behaves like the old RuntimeDyld::SymbolInfo - i.e. it is just a pair of an address and symbol flags. Instances of JITEvaluatedSymbol can be used in symbol-tables to avoid paying the space cost of the materializer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277386 91177308-0d34-0410-b5e6-96231b3b80d8
56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
//===--- GlobalMappingLayerTest.cpp - Unit test the global mapping layer --===//
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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/GlobalMappingLayer.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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using namespace llvm::orc;
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namespace {
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struct MockBaseLayer {
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typedef int ModuleSetHandleT;
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JITSymbol findSymbol(const std::string &Name, bool ExportedSymbolsOnly) {
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if (Name == "bar")
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return llvm::JITSymbol(0x4567, JITSymbolFlags::Exported);
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return nullptr;
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}
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};
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TEST(GlobalMappingLayerTest, Empty) {
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MockBaseLayer M;
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GlobalMappingLayer<MockBaseLayer> L(M);
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// Test fall-through for missing symbol.
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auto FooSym = L.findSymbol("foo", true);
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EXPECT_FALSE(FooSym) << "Found unexpected symbol.";
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// Test fall-through for symbol in base layer.
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auto BarSym = L.findSymbol("bar", true);
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EXPECT_EQ(BarSym.getAddress(), static_cast<JITTargetAddress>(0x4567))
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<< "Symbol lookup fall-through failed.";
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// Test setup of a global mapping.
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L.setGlobalMapping("foo", 0x0123);
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auto FooSym2 = L.findSymbol("foo", true);
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EXPECT_EQ(FooSym2.getAddress(), static_cast<JITTargetAddress>(0x0123))
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<< "Symbol mapping setup failed.";
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// Test removal of a global mapping.
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L.eraseGlobalMapping("foo");
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auto FooSym3 = L.findSymbol("foo", true);
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EXPECT_FALSE(FooSym3) << "Symbol mapping removal failed.";
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}
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}
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