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authorrobot-piglet <[email protected]>2025-03-05 13:38:11 +0300
committerrobot-piglet <[email protected]>2025-03-05 13:49:53 +0300
commit9eed360f02de773a5ed2de5d2a3e81fc7f06acfa (patch)
tree744a4054e64eb443073c7c6ad36b29cedcf9c2e6 /contrib/libs/llvm14/lib/Object/Minidump.cpp
parentc141a5c40bda2eed1a68b0626ffdae5fd19359a6 (diff)
Intermediate changes
commit_hash:2ec2671384dd8e604d41bc5c52c2f7858e4afea6
Diffstat (limited to 'contrib/libs/llvm14/lib/Object/Minidump.cpp')
-rw-r--r--contrib/libs/llvm14/lib/Object/Minidump.cpp155
1 files changed, 0 insertions, 155 deletions
diff --git a/contrib/libs/llvm14/lib/Object/Minidump.cpp b/contrib/libs/llvm14/lib/Object/Minidump.cpp
deleted file mode 100644
index 3e932fe7be2..00000000000
--- a/contrib/libs/llvm14/lib/Object/Minidump.cpp
+++ /dev/null
@@ -1,155 +0,0 @@
-//===- Minidump.cpp - Minidump object file implementation -----------------===//
-//
-// 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/Object/Minidump.h"
-#include "llvm/Object/Error.h"
-#include "llvm/Support/ConvertUTF.h"
-
-using namespace llvm;
-using namespace llvm::object;
-using namespace llvm::minidump;
-
-Optional<ArrayRef<uint8_t>>
-MinidumpFile::getRawStream(minidump::StreamType Type) const {
- auto It = StreamMap.find(Type);
- if (It != StreamMap.end())
- return getRawStream(Streams[It->second]);
- return None;
-}
-
-Expected<std::string> MinidumpFile::getString(size_t Offset) const {
- // Minidump strings consist of a 32-bit length field, which gives the size of
- // the string in *bytes*. This is followed by the actual string encoded in
- // UTF16.
- auto ExpectedSize =
- getDataSliceAs<support::ulittle32_t>(getData(), Offset, 1);
- if (!ExpectedSize)
- return ExpectedSize.takeError();
- size_t Size = (*ExpectedSize)[0];
- if (Size % 2 != 0)
- return createError("String size not even");
- Size /= 2;
- if (Size == 0)
- return "";
-
- Offset += sizeof(support::ulittle32_t);
- auto ExpectedData =
- getDataSliceAs<support::ulittle16_t>(getData(), Offset, Size);
- if (!ExpectedData)
- return ExpectedData.takeError();
-
- SmallVector<UTF16, 32> WStr(Size);
- copy(*ExpectedData, WStr.begin());
-
- std::string Result;
- if (!convertUTF16ToUTF8String(WStr, Result))
- return createError("String decoding failed");
-
- return Result;
-}
-
-Expected<iterator_range<MinidumpFile::MemoryInfoIterator>>
-MinidumpFile::getMemoryInfoList() const {
- Optional<ArrayRef<uint8_t>> Stream = getRawStream(StreamType::MemoryInfoList);
- if (!Stream)
- return createError("No such stream");
- auto ExpectedHeader =
- getDataSliceAs<minidump::MemoryInfoListHeader>(*Stream, 0, 1);
- if (!ExpectedHeader)
- return ExpectedHeader.takeError();
- const minidump::MemoryInfoListHeader &H = ExpectedHeader.get()[0];
- Expected<ArrayRef<uint8_t>> Data =
- getDataSlice(*Stream, H.SizeOfHeader, H.SizeOfEntry * H.NumberOfEntries);
- if (!Data)
- return Data.takeError();
- return make_range(MemoryInfoIterator(*Data, H.SizeOfEntry),
- MemoryInfoIterator({}, H.SizeOfEntry));
-}
-
-template <typename T>
-Expected<ArrayRef<T>> MinidumpFile::getListStream(StreamType Type) const {
- Optional<ArrayRef<uint8_t>> Stream = getRawStream(Type);
- if (!Stream)
- return createError("No such stream");
- auto ExpectedSize = getDataSliceAs<support::ulittle32_t>(*Stream, 0, 1);
- if (!ExpectedSize)
- return ExpectedSize.takeError();
-
- size_t ListSize = ExpectedSize.get()[0];
-
- size_t ListOffset = 4;
- // Some producers insert additional padding bytes to align the list to an
- // 8-byte boundary. Check for that by comparing the list size with the overall
- // stream size.
- if (ListOffset + sizeof(T) * ListSize < Stream->size())
- ListOffset = 8;
-
- return getDataSliceAs<T>(*Stream, ListOffset, ListSize);
-}
-template Expected<ArrayRef<Module>>
- MinidumpFile::getListStream(StreamType) const;
-template Expected<ArrayRef<Thread>>
- MinidumpFile::getListStream(StreamType) const;
-template Expected<ArrayRef<MemoryDescriptor>>
- MinidumpFile::getListStream(StreamType) const;
-
-Expected<ArrayRef<uint8_t>>
-MinidumpFile::getDataSlice(ArrayRef<uint8_t> Data, size_t Offset, size_t Size) {
- // Check for overflow.
- if (Offset + Size < Offset || Offset + Size < Size ||
- Offset + Size > Data.size())
- return createEOFError();
- return Data.slice(Offset, Size);
-}
-
-Expected<std::unique_ptr<MinidumpFile>>
-MinidumpFile::create(MemoryBufferRef Source) {
- ArrayRef<uint8_t> Data = arrayRefFromStringRef(Source.getBuffer());
- auto ExpectedHeader = getDataSliceAs<minidump::Header>(Data, 0, 1);
- if (!ExpectedHeader)
- return ExpectedHeader.takeError();
-
- const minidump::Header &Hdr = (*ExpectedHeader)[0];
- if (Hdr.Signature != Header::MagicSignature)
- return createError("Invalid signature");
- if ((Hdr.Version & 0xffff) != Header::MagicVersion)
- return createError("Invalid version");
-
- auto ExpectedStreams = getDataSliceAs<Directory>(Data, Hdr.StreamDirectoryRVA,
- Hdr.NumberOfStreams);
- if (!ExpectedStreams)
- return ExpectedStreams.takeError();
-
- DenseMap<StreamType, std::size_t> StreamMap;
- for (const auto &StreamDescriptor : llvm::enumerate(*ExpectedStreams)) {
- StreamType Type = StreamDescriptor.value().Type;
- const LocationDescriptor &Loc = StreamDescriptor.value().Location;
-
- Expected<ArrayRef<uint8_t>> Stream =
- getDataSlice(Data, Loc.RVA, Loc.DataSize);
- if (!Stream)
- return Stream.takeError();
-
- if (Type == StreamType::Unused && Loc.DataSize == 0) {
- // Ignore dummy streams. This is technically ill-formed, but a number of
- // existing minidumps seem to contain such streams.
- continue;
- }
-
- if (Type == DenseMapInfo<StreamType>::getEmptyKey() ||
- Type == DenseMapInfo<StreamType>::getTombstoneKey())
- return createError("Cannot handle one of the minidump streams");
-
- // Update the directory map, checking for duplicate stream types.
- if (!StreamMap.try_emplace(Type, StreamDescriptor.index()).second)
- return createError("Duplicate stream type");
- }
-
- return std::unique_ptr<MinidumpFile>(
- new MinidumpFile(Source, Hdr, *ExpectedStreams, std::move(StreamMap)));
-}