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Diffstat (limited to 'lib/DebugInfo/PDB/Native/StringTable.cpp')
-rw-r--r--lib/DebugInfo/PDB/Native/StringTable.cpp109
1 files changed, 0 insertions, 109 deletions
diff --git a/lib/DebugInfo/PDB/Native/StringTable.cpp b/lib/DebugInfo/PDB/Native/StringTable.cpp
deleted file mode 100644
index 7e28389b8383..000000000000
--- a/lib/DebugInfo/PDB/Native/StringTable.cpp
+++ /dev/null
@@ -1,109 +0,0 @@
-//===- StringTable.cpp - PDB String Table -----------------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/DebugInfo/PDB/Native/StringTable.h"
-
-#include "llvm/ADT/ArrayRef.h"
-#include "llvm/DebugInfo/PDB/Native/Hash.h"
-#include "llvm/DebugInfo/PDB/Native/RawError.h"
-#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
-#include "llvm/Support/BinaryStreamReader.h"
-#include "llvm/Support/Endian.h"
-
-using namespace llvm;
-using namespace llvm::support;
-using namespace llvm::pdb;
-
-StringTable::StringTable() {}
-
-Error StringTable::load(BinaryStreamReader &Stream) {
- ByteSize = Stream.getLength();
-
- const StringTableHeader *H;
- if (auto EC = Stream.readObject(H))
- return EC;
-
- if (H->Signature != StringTableSignature)
- return make_error<RawError>(raw_error_code::corrupt_file,
- "Invalid hash table signature");
- if (H->HashVersion != 1 && H->HashVersion != 2)
- return make_error<RawError>(raw_error_code::corrupt_file,
- "Unsupported hash version");
-
- Signature = H->Signature;
- HashVersion = H->HashVersion;
- if (auto EC = Stream.readStreamRef(NamesBuffer, H->ByteSize))
- return joinErrors(std::move(EC),
- make_error<RawError>(raw_error_code::corrupt_file,
- "Invalid hash table byte length"));
-
- const support::ulittle32_t *HashCount;
- if (auto EC = Stream.readObject(HashCount))
- return EC;
-
- if (auto EC = Stream.readArray(IDs, *HashCount))
- return joinErrors(std::move(EC),
- make_error<RawError>(raw_error_code::corrupt_file,
- "Could not read bucket array"));
-
- if (Stream.bytesRemaining() < sizeof(support::ulittle32_t))
- return make_error<RawError>(raw_error_code::corrupt_file,
- "Missing name count");
-
- if (auto EC = Stream.readInteger(NameCount))
- return EC;
-
- if (Stream.bytesRemaining() > 0)
- return make_error<RawError>(raw_error_code::stream_too_long,
- "Unexpected bytes found in string table");
-
- return Error::success();
-}
-
-uint32_t StringTable::getByteSize() const {
- return ByteSize;
-}
-
-StringRef StringTable::getStringForID(uint32_t ID) const {
- if (ID == IDs[0])
- return StringRef();
-
- // NamesBuffer is a buffer of null terminated strings back to back. ID is
- // the starting offset of the string we're looking for. So just seek into
- // the desired offset and a read a null terminated stream from that offset.
- StringRef Result;
- BinaryStreamReader NameReader(NamesBuffer);
- NameReader.setOffset(ID);
- if (auto EC = NameReader.readCString(Result))
- consumeError(std::move(EC));
- return Result;
-}
-
-uint32_t StringTable::getIDForString(StringRef Str) const {
- uint32_t Hash = (HashVersion == 1) ? hashStringV1(Str) : hashStringV2(Str);
- size_t Count = IDs.size();
- uint32_t Start = Hash % Count;
- for (size_t I = 0; I < Count; ++I) {
- // The hash is just a starting point for the search, but if it
- // doesn't work we should find the string no matter what, because
- // we iterate the entire array.
- uint32_t Index = (Start + I) % Count;
-
- uint32_t ID = IDs[Index];
- StringRef S = getStringForID(ID);
- if (S == Str)
- return ID;
- }
- // IDs[0] contains the ID of the "invalid" entry.
- return IDs[0];
-}
-
-FixedStreamArray<support::ulittle32_t> StringTable::name_ids() const {
- return IDs;
-}