7d3dfc862d
This patch starts the initial implementation of JITLink for XCOFF (Object format for AIX).
64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
//===----- XCOFFLinkGraphBuilder.h - XCOFF LinkGraph builder ----*- 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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// Generic XCOFF LinkGraph building code.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LIB_EXECUTIONENGINE_JITLINK_XCOFFLINKGRAPHBUILDER_H
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#define LIB_EXECUTIONENGINE_JITLINK_XCOFFLINKGRAPHBUILDER_H
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#include "llvm/ExecutionEngine/JITLink/JITLink.h"
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#include "llvm/ExecutionEngine/Orc/SymbolStringPool.h"
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#include "llvm/Object/ObjectFile.h"
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#include "llvm/Object/XCOFFObjectFile.h"
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#include "llvm/TargetParser/SubtargetFeature.h"
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#include <memory>
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namespace llvm {
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namespace jitlink {
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class XCOFFLinkGraphBuilder {
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public:
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virtual ~XCOFFLinkGraphBuilder() = default;
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Expected<std::unique_ptr<LinkGraph>> buildGraph();
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public:
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XCOFFLinkGraphBuilder(const object::XCOFFObjectFile &Obj,
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std::shared_ptr<orc::SymbolStringPool> SSP, Triple TT,
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SubtargetFeatures Features,
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LinkGraph::GetEdgeKindNameFunction GetEdgeKindName);
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LinkGraph &getGraph() const { return *G; }
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const object::XCOFFObjectFile &getObject() const { return Obj; }
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private:
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Error processSections();
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Error processCsectsAndSymbols();
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Error processRelocations();
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private:
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const object::XCOFFObjectFile &Obj;
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std::unique_ptr<LinkGraph> G;
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Section *UndefSection;
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struct SectionEntry {
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jitlink::Section *Section;
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object::SectionRef SectionData;
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};
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DenseMap<uint16_t, SectionEntry> SectionTable;
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DenseMap<uint32_t, Block *> CsectTable;
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DenseMap<uint32_t, Symbol *> SymbolIndexTable;
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};
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} // namespace jitlink
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} // namespace llvm
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#endif // LIB_EXECUTIONENGINE_JITLINK_XCOFFLINKGRAPHBUILDER_H
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