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author | vitalyisaev <vitalyisaev@yandex-team.com> | 2023-06-29 10:00:50 +0300 |
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committer | vitalyisaev <vitalyisaev@yandex-team.com> | 2023-06-29 10:00:50 +0300 |
commit | 6ffe9e53658409f212834330e13564e4952558f6 (patch) | |
tree | 85b1e00183517648b228aafa7c8fb07f5276f419 /contrib/libs/llvm14/lib/DebugInfo/CodeView/DebugStringTableSubsection.cpp | |
parent | 726057070f9c5a91fc10fde0d5024913d10f1ab9 (diff) | |
download | ydb-6ffe9e53658409f212834330e13564e4952558f6.tar.gz |
YQ Connector: support managed ClickHouse
Со стороны dqrun можно обратиться к инстансу коннектора, который работает на streaming стенде, и извлечь данные из облачного CH.
Diffstat (limited to 'contrib/libs/llvm14/lib/DebugInfo/CodeView/DebugStringTableSubsection.cpp')
-rw-r--r-- | contrib/libs/llvm14/lib/DebugInfo/CodeView/DebugStringTableSubsection.cpp | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/contrib/libs/llvm14/lib/DebugInfo/CodeView/DebugStringTableSubsection.cpp b/contrib/libs/llvm14/lib/DebugInfo/CodeView/DebugStringTableSubsection.cpp new file mode 100644 index 00000000000..63342749918 --- /dev/null +++ b/contrib/libs/llvm14/lib/DebugInfo/CodeView/DebugStringTableSubsection.cpp @@ -0,0 +1,107 @@ +//===- DebugStringTableSubsection.cpp - CodeView String Table -------------===// +// +// 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/CodeView/DebugStringTableSubsection.h" +#include "llvm/ADT/StringRef.h" +#include "llvm/DebugInfo/CodeView/CodeView.h" +#include "llvm/Support/BinaryStreamReader.h" +#include "llvm/Support/BinaryStreamWriter.h" +#include "llvm/Support/Error.h" +#include <algorithm> +#include <cassert> +#include <cstdint> + +using namespace llvm; +using namespace llvm::codeview; + +DebugStringTableSubsectionRef::DebugStringTableSubsectionRef() + : DebugSubsectionRef(DebugSubsectionKind::StringTable) {} + +Error DebugStringTableSubsectionRef::initialize(BinaryStreamRef Contents) { + Stream = Contents; + return Error::success(); +} + +Error DebugStringTableSubsectionRef::initialize(BinaryStreamReader &Reader) { + return Reader.readStreamRef(Stream); +} + +Expected<StringRef> +DebugStringTableSubsectionRef::getString(uint32_t Offset) const { + BinaryStreamReader Reader(Stream); + Reader.setOffset(Offset); + StringRef Result; + if (auto EC = Reader.readCString(Result)) + return std::move(EC); + return Result; +} + +DebugStringTableSubsection::DebugStringTableSubsection() + : DebugSubsection(DebugSubsectionKind::StringTable) {} + +uint32_t DebugStringTableSubsection::insert(StringRef S) { + auto P = StringToId.insert({S, StringSize}); + + // If a given string didn't exist in the string table, we want to increment + // the string table size and insert it into the reverse lookup. + if (P.second) { + IdToString.insert({P.first->getValue(), P.first->getKey()}); + StringSize += S.size() + 1; // +1 for '\0' + } + + return P.first->second; +} + +uint32_t DebugStringTableSubsection::calculateSerializedSize() const { + return StringSize; +} + +Error DebugStringTableSubsection::commit(BinaryStreamWriter &Writer) const { + uint32_t Begin = Writer.getOffset(); + uint32_t End = Begin + StringSize; + + // Write a null string at the beginning. + if (auto EC = Writer.writeCString(StringRef())) + return EC; + + for (auto &Pair : StringToId) { + StringRef S = Pair.getKey(); + uint32_t Offset = Begin + Pair.getValue(); + Writer.setOffset(Offset); + if (auto EC = Writer.writeCString(S)) + return EC; + assert(Writer.getOffset() <= End); + } + + Writer.setOffset(End); + assert((End - Begin) == StringSize); + return Error::success(); +} + +uint32_t DebugStringTableSubsection::size() const { return StringToId.size(); } + +std::vector<uint32_t> DebugStringTableSubsection::sortedIds() const { + std::vector<uint32_t> Result; + Result.reserve(IdToString.size()); + for (const auto &Entry : IdToString) + Result.push_back(Entry.first); + llvm::sort(Result); + return Result; +} + +uint32_t DebugStringTableSubsection::getIdForString(StringRef S) const { + auto Iter = StringToId.find(S); + assert(Iter != StringToId.end()); + return Iter->second; +} + +StringRef DebugStringTableSubsection::getStringForId(uint32_t Id) const { + auto Iter = IdToString.find(Id); + assert(Iter != IdToString.end()); + return Iter->second; +} |