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e759a41442
Currently llvm-rtdyld in -check mode will map sections to back-to-back 4k aligned slabs starting at 0x1000. Automatically remapping sections by default is helpful because it quickly exposes relocation bugs due to use of local addresses rather than load addresses (these would silently pass if the load address was not remapped). These mappings can be explicitly overridden on a per-section basis using llvm-rtdlyd's -map-section option. This patch extends this scheme to also preserve any mappings made by RuntimeDyld itself. Preserving RuntimeDyld's automatic mappings allows us to write test cases to verify that these automatic mappings have been applied. This will allow the fix in https://reviews.llvm.org/D32899 to be tested with llvm-rtdyld -check. llvm-svn: 302372
79 lines
2.7 KiB
C++
79 lines
2.7 KiB
C++
//===-- RuntimeDyldCheckerImpl.h -- RuntimeDyld test framework --*- C++ -*-===//
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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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#ifndef LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_RUNTIMEDYLDCHECKERIMPL_H
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#define LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_RUNTIMEDYLDCHECKERIMPL_H
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#include "RuntimeDyldImpl.h"
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namespace llvm {
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class RuntimeDyldCheckerImpl {
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friend class RuntimeDyldChecker;
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friend class RuntimeDyldImpl;
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friend class RuntimeDyldCheckerExprEval;
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friend class RuntimeDyldELF;
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public:
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RuntimeDyldCheckerImpl(RuntimeDyld &RTDyld, MCDisassembler *Disassembler,
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MCInstPrinter *InstPrinter,
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llvm::raw_ostream &ErrStream);
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bool check(StringRef CheckExpr) const;
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bool checkAllRulesInBuffer(StringRef RulePrefix, MemoryBuffer *MemBuf) const;
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private:
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// StubMap typedefs.
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typedef std::map<std::string, uint64_t> StubOffsetsMap;
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struct SectionAddressInfo {
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uint64_t SectionID;
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StubOffsetsMap StubOffsets;
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};
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typedef std::map<std::string, SectionAddressInfo> SectionMap;
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typedef std::map<std::string, SectionMap> StubMap;
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RuntimeDyldImpl &getRTDyld() const { return *RTDyld.Dyld; }
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bool isSymbolValid(StringRef Symbol) const;
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uint64_t getSymbolLocalAddr(StringRef Symbol) const;
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uint64_t getSymbolRemoteAddr(StringRef Symbol) const;
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uint64_t readMemoryAtAddr(uint64_t Addr, unsigned Size) const;
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std::pair<const SectionAddressInfo*, std::string> findSectionAddrInfo(
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StringRef FileName,
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StringRef SectionName) const;
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std::pair<uint64_t, std::string> getSectionAddr(StringRef FileName,
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StringRef SectionName,
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bool IsInsideLoad) const;
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std::pair<uint64_t, std::string> getStubAddrFor(StringRef FileName,
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StringRef SectionName,
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StringRef Symbol,
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bool IsInsideLoad) const;
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StringRef getSubsectionStartingAt(StringRef Name) const;
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Optional<uint64_t> getSectionLoadAddress(void *LocalAddr) const;
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void registerSection(StringRef FilePath, unsigned SectionID);
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void registerStubMap(StringRef FilePath, unsigned SectionID,
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const RuntimeDyldImpl::StubMap &RTDyldStubs);
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RuntimeDyld &RTDyld;
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MCDisassembler *Disassembler;
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MCInstPrinter *InstPrinter;
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llvm::raw_ostream &ErrStream;
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StubMap Stubs;
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};
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}
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#endif
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