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authorDimitry Andric <dim@FreeBSD.org>2019-12-20 19:53:05 +0000
committerDimitry Andric <dim@FreeBSD.org>2019-12-20 19:53:05 +0000
commit0b57cec536236d46e3dba9bd041533462f33dbb7 (patch)
tree56229dbdbbf76d18580f72f789003db17246c8d9 /contrib/llvm/lib/DebugInfo/PDB/Native/NamedStreamMap.cpp
parent718ef55ec7785aae63f98f8ca05dc07ed399c16d (diff)
Notes
Diffstat (limited to 'contrib/llvm/lib/DebugInfo/PDB/Native/NamedStreamMap.cpp')
-rw-r--r--contrib/llvm/lib/DebugInfo/PDB/Native/NamedStreamMap.cpp126
1 files changed, 0 insertions, 126 deletions
diff --git a/contrib/llvm/lib/DebugInfo/PDB/Native/NamedStreamMap.cpp b/contrib/llvm/lib/DebugInfo/PDB/Native/NamedStreamMap.cpp
deleted file mode 100644
index 4a88391494cd..000000000000
--- a/contrib/llvm/lib/DebugInfo/PDB/Native/NamedStreamMap.cpp
+++ /dev/null
@@ -1,126 +0,0 @@
-//===- NamedStreamMap.cpp - PDB Named Stream Map --------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/DebugInfo/PDB/Native/NamedStreamMap.h"
-#include "llvm/ADT/StringMap.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/ADT/iterator_range.h"
-#include "llvm/DebugInfo/PDB/Native/Hash.h"
-#include "llvm/DebugInfo/PDB/Native/HashTable.h"
-#include "llvm/DebugInfo/PDB/Native/RawError.h"
-#include "llvm/Support/BinaryStreamReader.h"
-#include "llvm/Support/BinaryStreamRef.h"
-#include "llvm/Support/BinaryStreamWriter.h"
-#include "llvm/Support/Endian.h"
-#include "llvm/Support/Error.h"
-#include <algorithm>
-#include <cassert>
-#include <cstdint>
-#include <tuple>
-
-using namespace llvm;
-using namespace llvm::pdb;
-
-NamedStreamMapTraits::NamedStreamMapTraits(NamedStreamMap &NS) : NS(&NS) {}
-
-uint16_t NamedStreamMapTraits::hashLookupKey(StringRef S) const {
- // In the reference implementation, this uses
- // HASH Hasher<ULONG*, USHORT*>::hashPbCb(PB pb, size_t cb, ULONG ulMod).
- // Here, the type HASH is a typedef of unsigned short.
- // ** It is not a bug that we truncate the result of hashStringV1, in fact
- // it is a bug if we do not! **
- // See NMTNI::hash() in the reference implementation.
- return static_cast<uint16_t>(hashStringV1(S));
-}
-
-StringRef NamedStreamMapTraits::storageKeyToLookupKey(uint32_t Offset) const {
- return NS->getString(Offset);
-}
-
-uint32_t NamedStreamMapTraits::lookupKeyToStorageKey(StringRef S) {
- return NS->appendStringData(S);
-}
-
-NamedStreamMap::NamedStreamMap() : HashTraits(*this), OffsetIndexMap(1) {}
-
-Error NamedStreamMap::load(BinaryStreamReader &Stream) {
- uint32_t StringBufferSize;
- if (auto EC = Stream.readInteger(StringBufferSize))
- return joinErrors(std::move(EC),
- make_error<RawError>(raw_error_code::corrupt_file,
- "Expected string buffer size"));
-
- StringRef Buffer;
- if (auto EC = Stream.readFixedString(Buffer, StringBufferSize))
- return EC;
- NamesBuffer.assign(Buffer.begin(), Buffer.end());
-
- return OffsetIndexMap.load(Stream);
-}
-
-Error NamedStreamMap::commit(BinaryStreamWriter &Writer) const {
- // The first field is the number of bytes of string data.
- if (auto EC = Writer.writeInteger<uint32_t>(NamesBuffer.size()))
- return EC;
-
- // Then the actual string data.
- StringRef Data(NamesBuffer.data(), NamesBuffer.size());
- if (auto EC = Writer.writeFixedString(Data))
- return EC;
-
- // And finally the Offset Index map.
- if (auto EC = OffsetIndexMap.commit(Writer))
- return EC;
-
- return Error::success();
-}
-
-uint32_t NamedStreamMap::calculateSerializedLength() const {
- return sizeof(uint32_t) // String data size
- + NamesBuffer.size() // String data
- + OffsetIndexMap.calculateSerializedLength(); // Offset Index Map
-}
-
-uint32_t NamedStreamMap::size() const { return OffsetIndexMap.size(); }
-
-StringRef NamedStreamMap::getString(uint32_t Offset) const {
- assert(NamesBuffer.size() > Offset);
- return StringRef(NamesBuffer.data() + Offset);
-}
-
-uint32_t NamedStreamMap::hashString(uint32_t Offset) const {
- return hashStringV1(getString(Offset));
-}
-
-bool NamedStreamMap::get(StringRef Stream, uint32_t &StreamNo) const {
- auto Iter = OffsetIndexMap.find_as(Stream, HashTraits);
- if (Iter == OffsetIndexMap.end())
- return false;
- StreamNo = (*Iter).second;
- return true;
-}
-
-StringMap<uint32_t> NamedStreamMap::entries() const {
- StringMap<uint32_t> Result;
- for (const auto &Entry : OffsetIndexMap) {
- StringRef Stream(NamesBuffer.data() + Entry.first);
- Result.try_emplace(Stream, Entry.second);
- }
- return Result;
-}
-
-uint32_t NamedStreamMap::appendStringData(StringRef S) {
- uint32_t Offset = NamesBuffer.size();
- NamesBuffer.insert(NamesBuffer.end(), S.begin(), S.end());
- NamesBuffer.push_back('\0');
- return Offset;
-}
-
-void NamedStreamMap::set(StringRef Stream, uint32_t StreamNo) {
- OffsetIndexMap.set_as(Stream, support::ulittle32_t(StreamNo), HashTraits);
-}