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3361fafaf7
Summary: This removes the CVTypeVisitor updater and verifier classes. They were made dead by the minimal type dumping refactoring. Replace them with a single function that takes a type record and produces a hash. Call this from the minimal type dumper and compare the hash. I also noticed that the microsoft-pdb reference repository uses a basic CRC32 for records that aren't special. We already have an implementation of that CRC ready to use, because it's used in COFF for ICF. I'll make LLD call this hashing utility in a follow-up change. We might also consider using this same hash in type stream merging, so that we don't have to hash our records twice. Reviewers: inglorion, ruiu Subscribers: llvm-commits, hiraditya Differential Revision: https://reviews.llvm.org/D35515 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@308240 91177308-0d34-0410-b5e6-96231b3b80d8
64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
//===- MinimalTypeDumper.h ------------------------------------ *- 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_TOOLS_LLVMPDBUTIL_MINIMAL_TYPE_DUMPER_H
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#define LLVM_TOOLS_LLVMPDBUTIL_MINIMAL_TYPE_DUMPER_H
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#include "llvm/DebugInfo/CodeView/TypeVisitorCallbacks.h"
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#include "llvm/Support/BinaryStreamArray.h"
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namespace llvm {
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namespace codeview {
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class LazyRandomTypeCollection;
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}
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namespace pdb {
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class LinePrinter;
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class MinimalTypeDumpVisitor : public codeview::TypeVisitorCallbacks {
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public:
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MinimalTypeDumpVisitor(LinePrinter &P, uint32_t Width, bool RecordBytes,
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bool Hashes, codeview::LazyRandomTypeCollection &Types,
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uint32_t NumHashBuckets,
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FixedStreamArray<support::ulittle32_t> HashValues)
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: P(P), Width(Width), RecordBytes(RecordBytes), Hashes(Hashes),
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Types(Types), NumHashBuckets(NumHashBuckets), HashValues(HashValues) {}
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Error visitTypeBegin(codeview::CVType &Record,
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codeview::TypeIndex Index) override;
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Error visitTypeEnd(codeview::CVType &Record) override;
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Error visitMemberBegin(codeview::CVMemberRecord &Record) override;
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Error visitMemberEnd(codeview::CVMemberRecord &Record) override;
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#define TYPE_RECORD(EnumName, EnumVal, Name) \
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Error visitKnownRecord(codeview::CVType &CVR, \
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codeview::Name##Record &Record) override;
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#define MEMBER_RECORD(EnumName, EnumVal, Name) \
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Error visitKnownMember(codeview::CVMemberRecord &CVR, \
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codeview::Name##Record &Record) override;
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#define TYPE_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
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#define MEMBER_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
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#include "llvm/DebugInfo/CodeView/CodeViewTypes.def"
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private:
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StringRef getTypeName(codeview::TypeIndex TI) const;
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LinePrinter &P;
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uint32_t Width;
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bool RecordBytes = false;
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bool Hashes = false;
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codeview::LazyRandomTypeCollection &Types;
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uint32_t NumHashBuckets;
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FixedStreamArray<support::ulittle32_t> HashValues;
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};
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} // namespace pdb
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} // namespace llvm
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#endif
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