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authorvitalyisaev <vitalyisaev@yandex-team.com>2023-06-29 10:00:50 +0300
committervitalyisaev <vitalyisaev@yandex-team.com>2023-06-29 10:00:50 +0300
commit6ffe9e53658409f212834330e13564e4952558f6 (patch)
tree85b1e00183517648b228aafa7c8fb07f5276f419 /contrib/libs/llvm14/lib/DebugInfo/CodeView/DebugStringTableSubsection.cpp
parent726057070f9c5a91fc10fde0d5024913d10f1ab9 (diff)
downloadydb-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.cpp107
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;
+}