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llvm-project/llvm/lib/ObjectYAML/MinidumpYAML.cpp

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//===- MinidumpYAML.cpp - Minidump YAMLIO 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/ObjectYAML/MinidumpYAML.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/ConvertUTF.h"
using namespace llvm;
using namespace llvm::MinidumpYAML;
using namespace llvm::minidump;
namespace {
/// A helper class to manage the placement of various structures into the final
/// minidump binary. Space for objects can be allocated via various allocate***
/// methods, while the final minidump file is written by calling the writeTo
/// method. The plain versions of allocation functions take a reference to the
/// data which is to be written (and hence the data must be available until
/// writeTo is called), while the "New" versions allocate the data in an
/// allocator-managed buffer, which is available until the allocator object is
/// destroyed. For both kinds of functions, it is possible to modify the
/// data for which the space has been "allocated" until the final writeTo call.
/// This is useful for "linking" the allocated structures via their offsets.
class BlobAllocator {
public:
size_t tell() const { return NextOffset; }
size_t allocateCallback(size_t Size,
std::function<void(raw_ostream &)> Callback) {
size_t Offset = NextOffset;
NextOffset += Size;
Callbacks.push_back(std::move(Callback));
return Offset;
}
size_t allocateBytes(ArrayRef<uint8_t> Data) {
return allocateCallback(
Data.size(), [Data](raw_ostream &OS) { OS << toStringRef(Data); });
}
size_t allocateBytes(yaml::BinaryRef Data) {
return allocateCallback(Data.binary_size(), [Data](raw_ostream &OS) {
Data.writeAsBinary(OS);
});
}
template <typename T> size_t allocateArray(ArrayRef<T> Data) {
return allocateBytes({reinterpret_cast<const uint8_t *>(Data.data()),
sizeof(T) * Data.size()});
}
template <typename T, typename RangeType>
std::pair<size_t, MutableArrayRef<T>>
allocateNewArray(const iterator_range<RangeType> &Range);
template <typename T> size_t allocateObject(const T &Data) {
return allocateArray(makeArrayRef(Data));
}
template <typename T, typename... Types>
std::pair<size_t, T *> allocateNewObject(Types &&... Args) {
T *Object = new (Temporaries.Allocate<T>()) T(std::forward<Types>(Args)...);
return {allocateObject(*Object), Object};
}
size_t allocateString(StringRef Str);
void writeTo(raw_ostream &OS) const;
private:
size_t NextOffset = 0;
BumpPtrAllocator Temporaries;
std::vector<std::function<void(raw_ostream &)>> Callbacks;
};
} // namespace
template <typename T, typename RangeType>
std::pair<size_t, MutableArrayRef<T>>
BlobAllocator::allocateNewArray(const iterator_range<RangeType> &Range) {
size_t Num = std::distance(Range.begin(), Range.end());
MutableArrayRef<T> Array(Temporaries.Allocate<T>(Num), Num);
std::uninitialized_copy(Range.begin(), Range.end(), Array.begin());
return {allocateArray(Array), Array};
}
size_t BlobAllocator::allocateString(StringRef Str) {
SmallVector<UTF16, 32> WStr;
bool OK = convertUTF8ToUTF16String(Str, WStr);
assert(OK && "Invalid UTF8 in Str?");
(void)OK;
// The utf16 string is null-terminated, but the terminator is not counted in
// the string size.
WStr.push_back(0);
size_t Result =
allocateNewObject<support::ulittle32_t>(2 * (WStr.size() - 1)).first;
allocateNewArray<support::ulittle16_t>(make_range(WStr.begin(), WStr.end()));
return Result;
}
void BlobAllocator::writeTo(raw_ostream &OS) const {
size_t BeginOffset = OS.tell();
for (const auto &Callback : Callbacks)
Callback(OS);
assert(OS.tell() == BeginOffset + NextOffset &&
"Callbacks wrote an unexpected number of bytes.");
(void)BeginOffset;
}
/// Perform an optional yaml-mapping of an endian-aware type EndianType. The
/// only purpose of this function is to avoid casting the Default value to the
/// endian type;
template <typename EndianType>
static inline void mapOptional(yaml::IO &IO, const char *Key, EndianType &Val,
typename EndianType::value_type Default) {
IO.mapOptional(Key, Val, EndianType(Default));
}
/// Yaml-map an endian-aware type EndianType as some other type MapType.
template <typename MapType, typename EndianType>
static inline void mapRequiredAs(yaml::IO &IO, const char *Key,
EndianType &Val) {
MapType Mapped = static_cast<typename EndianType::value_type>(Val);
IO.mapRequired(Key, Mapped);
Val = static_cast<typename EndianType::value_type>(Mapped);
}
/// Perform an optional yaml-mapping of an endian-aware type EndianType as some
/// other type MapType.
template <typename MapType, typename EndianType>
static inline void mapOptionalAs(yaml::IO &IO, const char *Key, EndianType &Val,
MapType Default) {
MapType Mapped = static_cast<typename EndianType::value_type>(Val);
IO.mapOptional(Key, Mapped, Default);
Val = static_cast<typename EndianType::value_type>(Mapped);
}
namespace {
/// Return the appropriate yaml Hex type for a given endian-aware type.
template <typename EndianType> struct HexType;
template <> struct HexType<support::ulittle16_t> { using type = yaml::Hex16; };
template <> struct HexType<support::ulittle32_t> { using type = yaml::Hex32; };
template <> struct HexType<support::ulittle64_t> { using type = yaml::Hex64; };
} // namespace
/// Yaml-map an endian-aware type as an appropriately-sized hex value.
template <typename EndianType>
static inline void mapRequiredHex(yaml::IO &IO, const char *Key,
EndianType &Val) {
mapRequiredAs<typename HexType<EndianType>::type>(IO, Key, Val);
}
/// Perform an optional yaml-mapping of an endian-aware type as an
/// appropriately-sized hex value.
template <typename EndianType>
static inline void mapOptionalHex(yaml::IO &IO, const char *Key,
EndianType &Val,
typename EndianType::value_type Default) {
mapOptionalAs<typename HexType<EndianType>::type>(IO, Key, Val, Default);
}
Stream::~Stream() = default;
Stream::StreamKind Stream::getKind(StreamType Type) {
switch (Type) {
case StreamType::MemoryList:
return StreamKind::MemoryList;
case StreamType::ModuleList:
return StreamKind::ModuleList;
case StreamType::SystemInfo:
return StreamKind::SystemInfo;
case StreamType::LinuxCPUInfo:
case StreamType::LinuxProcStatus:
case StreamType::LinuxLSBRelease:
case StreamType::LinuxCMDLine:
case StreamType::LinuxMaps:
case StreamType::LinuxProcStat:
case StreamType::LinuxProcUptime:
return StreamKind::TextContent;
case StreamType::ThreadList:
return StreamKind::ThreadList;
default:
return StreamKind::RawContent;
}
}
std::unique_ptr<Stream> Stream::create(StreamType Type) {
StreamKind Kind = getKind(Type);
switch (Kind) {
case StreamKind::MemoryList:
return llvm::make_unique<MemoryListStream>();
case StreamKind::ModuleList:
return llvm::make_unique<ModuleListStream>();
case StreamKind::RawContent:
return llvm::make_unique<RawContentStream>(Type);
case StreamKind::SystemInfo:
return llvm::make_unique<SystemInfoStream>();
case StreamKind::TextContent:
return llvm::make_unique<TextContentStream>(Type);
case StreamKind::ThreadList:
return llvm::make_unique<ThreadListStream>();
}
llvm_unreachable("Unhandled stream kind!");
}
void yaml::ScalarEnumerationTraits<ProcessorArchitecture>::enumeration(
IO &IO, ProcessorArchitecture &Arch) {
#define HANDLE_MDMP_ARCH(CODE, NAME) \
IO.enumCase(Arch, #NAME, ProcessorArchitecture::NAME);
#include "llvm/BinaryFormat/MinidumpConstants.def"
IO.enumFallback<Hex16>(Arch);
}
void yaml::ScalarEnumerationTraits<OSPlatform>::enumeration(IO &IO,
OSPlatform &Plat) {
#define HANDLE_MDMP_PLATFORM(CODE, NAME) \
IO.enumCase(Plat, #NAME, OSPlatform::NAME);
#include "llvm/BinaryFormat/MinidumpConstants.def"
IO.enumFallback<Hex32>(Plat);
}
void yaml::ScalarEnumerationTraits<StreamType>::enumeration(IO &IO,
StreamType &Type) {
#define HANDLE_MDMP_STREAM_TYPE(CODE, NAME) \
IO.enumCase(Type, #NAME, StreamType::NAME);
#include "llvm/BinaryFormat/MinidumpConstants.def"
IO.enumFallback<Hex32>(Type);
}
void yaml::MappingTraits<CPUInfo::ArmInfo>::mapping(IO &IO,
CPUInfo::ArmInfo &Info) {
mapRequiredHex(IO, "CPUID", Info.CPUID);
mapOptionalHex(IO, "ELF hwcaps", Info.ElfHWCaps, 0);
}
namespace {
template <std::size_t N> struct FixedSizeHex {
FixedSizeHex(uint8_t (&Storage)[N]) : Storage(Storage) {}
uint8_t (&Storage)[N];
};
} // namespace
namespace llvm {
namespace yaml {
template <std::size_t N> struct ScalarTraits<FixedSizeHex<N>> {
static void output(const FixedSizeHex<N> &Fixed, void *, raw_ostream &OS) {
OS << toHex(makeArrayRef(Fixed.Storage));
}
static StringRef input(StringRef Scalar, void *, FixedSizeHex<N> &Fixed) {
if (!all_of(Scalar, isHexDigit))
return "Invalid hex digit in input";
if (Scalar.size() < 2 * N)
return "String too short";
if (Scalar.size() > 2 * N)
return "String too long";
copy(fromHex(Scalar), Fixed.Storage);
return "";
}
static QuotingType mustQuote(StringRef S) { return QuotingType::None; }
};
} // namespace yaml
} // namespace llvm
void yaml::MappingTraits<CPUInfo::OtherInfo>::mapping(
IO &IO, CPUInfo::OtherInfo &Info) {
FixedSizeHex<sizeof(Info.ProcessorFeatures)> Features(Info.ProcessorFeatures);
IO.mapRequired("Features", Features);
}
namespace {
/// A type which only accepts strings of a fixed size for yaml conversion.
template <std::size_t N> struct FixedSizeString {
FixedSizeString(char (&Storage)[N]) : Storage(Storage) {}
char (&Storage)[N];
};
} // namespace
namespace llvm {
namespace yaml {
template <std::size_t N> struct ScalarTraits<FixedSizeString<N>> {
static void output(const FixedSizeString<N> &Fixed, void *, raw_ostream &OS) {
OS << StringRef(Fixed.Storage, N);
}
static StringRef input(StringRef Scalar, void *, FixedSizeString<N> &Fixed) {
if (Scalar.size() < N)
return "String too short";
if (Scalar.size() > N)
return "String too long";
copy(Scalar, Fixed.Storage);
return "";
}
static QuotingType mustQuote(StringRef S) { return needsQuotes(S); }
};
} // namespace yaml
} // namespace llvm
void yaml::MappingTraits<CPUInfo::X86Info>::mapping(IO &IO,
CPUInfo::X86Info &Info) {
FixedSizeString<sizeof(Info.VendorID)> VendorID(Info.VendorID);
IO.mapRequired("Vendor ID", VendorID);
mapRequiredHex(IO, "Version Info", Info.VersionInfo);
mapRequiredHex(IO, "Feature Info", Info.FeatureInfo);
mapOptionalHex(IO, "AMD Extended Features", Info.AMDExtendedFeatures, 0);
}
void yaml::MappingTraits<VSFixedFileInfo>::mapping(IO &IO,
VSFixedFileInfo &Info) {
mapOptionalHex(IO, "Signature", Info.Signature, 0);
mapOptionalHex(IO, "Struct Version", Info.StructVersion, 0);
mapOptionalHex(IO, "File Version High", Info.FileVersionHigh, 0);
mapOptionalHex(IO, "File Version Low", Info.FileVersionLow, 0);
mapOptionalHex(IO, "Product Version High", Info.ProductVersionHigh, 0);
mapOptionalHex(IO, "Product Version Low", Info.ProductVersionLow, 0);
mapOptionalHex(IO, "File Flags Mask", Info.FileFlagsMask, 0);
mapOptionalHex(IO, "File Flags", Info.FileFlags, 0);
mapOptionalHex(IO, "File OS", Info.FileOS, 0);
mapOptionalHex(IO, "File Type", Info.FileType, 0);
mapOptionalHex(IO, "File Subtype", Info.FileSubtype, 0);
mapOptionalHex(IO, "File Date High", Info.FileDateHigh, 0);
mapOptionalHex(IO, "File Date Low", Info.FileDateLow, 0);
}
void yaml::MappingTraits<ModuleListStream::entry_type>::mapping(
IO &IO, ModuleListStream::entry_type &M) {
mapRequiredHex(IO, "Base of Image", M.Entry.BaseOfImage);
mapRequiredHex(IO, "Size of Image", M.Entry.SizeOfImage);
mapOptionalHex(IO, "Checksum", M.Entry.Checksum, 0);
IO.mapOptional("Time Date Stamp", M.Entry.TimeDateStamp,
support::ulittle32_t(0));
IO.mapRequired("Module Name", M.Name);
IO.mapOptional("Version Info", M.Entry.VersionInfo, VSFixedFileInfo());
IO.mapRequired("CodeView Record", M.CvRecord);
IO.mapOptional("Misc Record", M.MiscRecord, yaml::BinaryRef());
mapOptionalHex(IO, "Reserved0", M.Entry.Reserved0, 0);
mapOptionalHex(IO, "Reserved1", M.Entry.Reserved1, 0);
}
static void streamMapping(yaml::IO &IO, RawContentStream &Stream) {
IO.mapOptional("Content", Stream.Content);
IO.mapOptional("Size", Stream.Size, Stream.Content.binary_size());
}
static StringRef streamValidate(RawContentStream &Stream) {
if (Stream.Size.value < Stream.Content.binary_size())
return "Stream size must be greater or equal to the content size";
return "";
}
void yaml::MappingTraits<MemoryListStream::entry_type>::mapping(
IO &IO, MemoryListStream::entry_type &Range) {
MappingContextTraits<MemoryDescriptor, yaml::BinaryRef>::mapping(
IO, Range.Entry, Range.Content);
}
static void streamMapping(yaml::IO &IO, MemoryListStream &Stream) {
IO.mapRequired("Memory Ranges", Stream.Entries);
}
static void streamMapping(yaml::IO &IO, ModuleListStream &Stream) {
IO.mapRequired("Modules", Stream.Entries);
}
static void streamMapping(yaml::IO &IO, SystemInfoStream &Stream) {
SystemInfo &Info = Stream.Info;
IO.mapRequired("Processor Arch", Info.ProcessorArch);
mapOptional(IO, "Processor Level", Info.ProcessorLevel, 0);
mapOptional(IO, "Processor Revision", Info.ProcessorRevision, 0);
IO.mapOptional("Number of Processors", Info.NumberOfProcessors, 0);
IO.mapOptional("Product type", Info.ProductType, 0);
mapOptional(IO, "Major Version", Info.MajorVersion, 0);
mapOptional(IO, "Minor Version", Info.MinorVersion, 0);
mapOptional(IO, "Build Number", Info.BuildNumber, 0);
IO.mapRequired("Platform ID", Info.PlatformId);
IO.mapOptional("CSD Version", Stream.CSDVersion, "");
mapOptionalHex(IO, "Suite Mask", Info.SuiteMask, 0);
mapOptionalHex(IO, "Reserved", Info.Reserved, 0);
switch (static_cast<ProcessorArchitecture>(Info.ProcessorArch)) {
case ProcessorArchitecture::X86:
case ProcessorArchitecture::AMD64:
IO.mapOptional("CPU", Info.CPU.X86);
break;
case ProcessorArchitecture::ARM:
case ProcessorArchitecture::ARM64:
IO.mapOptional("CPU", Info.CPU.Arm);
break;
default:
IO.mapOptional("CPU", Info.CPU.Other);
break;
}
}
static void streamMapping(yaml::IO &IO, TextContentStream &Stream) {
IO.mapOptional("Text", Stream.Text);
}
void yaml::MappingContextTraits<MemoryDescriptor, yaml::BinaryRef>::mapping(
IO &IO, MemoryDescriptor &Memory, BinaryRef &Content) {
mapRequiredHex(IO, "Start of Memory Range", Memory.StartOfMemoryRange);
IO.mapRequired("Content", Content);
}
void yaml::MappingTraits<ThreadListStream::entry_type>::mapping(
IO &IO, ThreadListStream::entry_type &T) {
mapRequiredHex(IO, "Thread Id", T.Entry.ThreadId);
mapOptionalHex(IO, "Suspend Count", T.Entry.SuspendCount, 0);
mapOptionalHex(IO, "Priority Class", T.Entry.PriorityClass, 0);
mapOptionalHex(IO, "Priority", T.Entry.Priority, 0);
mapOptionalHex(IO, "Environment Block", T.Entry.EnvironmentBlock, 0);
IO.mapRequired("Context", T.Context);
IO.mapRequired("Stack", T.Entry.Stack, T.Stack);
}
static void streamMapping(yaml::IO &IO, ThreadListStream &Stream) {
IO.mapRequired("Threads", Stream.Entries);
}
void yaml::MappingTraits<std::unique_ptr<Stream>>::mapping(
yaml::IO &IO, std::unique_ptr<MinidumpYAML::Stream> &S) {
StreamType Type;
if (IO.outputting())
Type = S->Type;
IO.mapRequired("Type", Type);
if (!IO.outputting())
S = MinidumpYAML::Stream::create(Type);
switch (S->Kind) {
case MinidumpYAML::Stream::StreamKind::MemoryList:
streamMapping(IO, llvm::cast<MemoryListStream>(*S));
break;
case MinidumpYAML::Stream::StreamKind::ModuleList:
streamMapping(IO, llvm::cast<ModuleListStream>(*S));
break;
case MinidumpYAML::Stream::StreamKind::RawContent:
streamMapping(IO, llvm::cast<RawContentStream>(*S));
break;
case MinidumpYAML::Stream::StreamKind::SystemInfo:
streamMapping(IO, llvm::cast<SystemInfoStream>(*S));
break;
case MinidumpYAML::Stream::StreamKind::TextContent:
streamMapping(IO, llvm::cast<TextContentStream>(*S));
break;
case MinidumpYAML::Stream::StreamKind::ThreadList:
streamMapping(IO, llvm::cast<ThreadListStream>(*S));
break;
}
}
StringRef yaml::MappingTraits<std::unique_ptr<Stream>>::validate(
yaml::IO &IO, std::unique_ptr<MinidumpYAML::Stream> &S) {
switch (S->Kind) {
case MinidumpYAML::Stream::StreamKind::RawContent:
return streamValidate(cast<RawContentStream>(*S));
case MinidumpYAML::Stream::StreamKind::MemoryList:
case MinidumpYAML::Stream::StreamKind::ModuleList:
case MinidumpYAML::Stream::StreamKind::SystemInfo:
case MinidumpYAML::Stream::StreamKind::TextContent:
case MinidumpYAML::Stream::StreamKind::ThreadList:
return "";
}
llvm_unreachable("Fully covered switch above!");
}
void yaml::MappingTraits<Object>::mapping(IO &IO, Object &O) {
IO.mapTag("!minidump", true);
mapOptionalHex(IO, "Signature", O.Header.Signature, Header::MagicSignature);
mapOptionalHex(IO, "Version", O.Header.Version, Header::MagicVersion);
mapOptionalHex(IO, "Flags", O.Header.Flags, 0);
IO.mapRequired("Streams", O.Streams);
}
static LocationDescriptor layout(BlobAllocator &File, yaml::BinaryRef Data) {
return {support::ulittle32_t(Data.binary_size()),
support::ulittle32_t(File.allocateBytes(Data))};
}
static void layout(BlobAllocator &File, MemoryListStream::entry_type &Range) {
Range.Entry.Memory = layout(File, Range.Content);
}
static void layout(BlobAllocator &File, ModuleListStream::entry_type &M) {
M.Entry.ModuleNameRVA = File.allocateString(M.Name);
M.Entry.CvRecord = layout(File, M.CvRecord);
M.Entry.MiscRecord = layout(File, M.MiscRecord);
}
static void layout(BlobAllocator &File, ThreadListStream::entry_type &T) {
T.Entry.Stack.Memory = layout(File, T.Stack);
T.Entry.Context = layout(File, T.Context);
}
template <typename EntryT>
static size_t layout(BlobAllocator &File,
MinidumpYAML::detail::ListStream<EntryT> &S) {
File.allocateNewObject<support::ulittle32_t>(S.Entries.size());
for (auto &E : S.Entries)
File.allocateObject(E.Entry);
size_t DataEnd = File.tell();
// Lay out the auxiliary data, (which is not a part of the stream).
DataEnd = File.tell();
for (auto &E : S.Entries)
layout(File, E);
return DataEnd;
}
static Directory layout(BlobAllocator &File, Stream &S) {
Directory Result;
Result.Type = S.Type;
Result.Location.RVA = File.tell();
Optional<size_t> DataEnd;
switch (S.Kind) {
case Stream::StreamKind::MemoryList:
DataEnd = layout(File, cast<MemoryListStream>(S));
break;
case Stream::StreamKind::ModuleList:
DataEnd = layout(File, cast<ModuleListStream>(S));
break;
case Stream::StreamKind::RawContent: {
RawContentStream &Raw = cast<RawContentStream>(S);
File.allocateCallback(Raw.Size, [&Raw](raw_ostream &OS) {
Raw.Content.writeAsBinary(OS);
assert(Raw.Content.binary_size() <= Raw.Size);
OS << std::string(Raw.Size - Raw.Content.binary_size(), '\0');
});
break;
}
case Stream::StreamKind::SystemInfo: {
SystemInfoStream &SystemInfo = cast<SystemInfoStream>(S);
File.allocateObject(SystemInfo.Info);
// The CSD string is not a part of the stream.
DataEnd = File.tell();
SystemInfo.Info.CSDVersionRVA = File.allocateString(SystemInfo.CSDVersion);
break;
}
case Stream::StreamKind::TextContent:
File.allocateArray(arrayRefFromStringRef(cast<TextContentStream>(S).Text));
break;
case Stream::StreamKind::ThreadList:
DataEnd = layout(File, cast<ThreadListStream>(S));
break;
}
// If DataEnd is not set, we assume everything we generated is a part of the
// stream.
Result.Location.DataSize =
DataEnd.getValueOr(File.tell()) - Result.Location.RVA;
return Result;
}
void MinidumpYAML::writeAsBinary(Object &Obj, raw_ostream &OS) {
BlobAllocator File;
File.allocateObject(Obj.Header);
std::vector<Directory> StreamDirectory(Obj.Streams.size());
Obj.Header.StreamDirectoryRVA =
File.allocateArray(makeArrayRef(StreamDirectory));
Obj.Header.NumberOfStreams = StreamDirectory.size();
for (auto &Stream : enumerate(Obj.Streams))
StreamDirectory[Stream.index()] = layout(File, *Stream.value());
File.writeTo(OS);
}
Error MinidumpYAML::writeAsBinary(StringRef Yaml, raw_ostream &OS) {
yaml::Input Input(Yaml);
Object Obj;
Input >> Obj;
if (std::error_code EC = Input.error())
return errorCodeToError(EC);
writeAsBinary(Obj, OS);
return Error::success();
}
Expected<std::unique_ptr<Stream>>
Stream::create(const Directory &StreamDesc, const object::MinidumpFile &File) {
StreamKind Kind = getKind(StreamDesc.Type);
switch (Kind) {
case StreamKind::MemoryList: {
auto ExpectedList = File.getMemoryList();
if (!ExpectedList)
return ExpectedList.takeError();
std::vector<MemoryListStream::entry_type> Ranges;
for (const MemoryDescriptor &MD : *ExpectedList) {
auto ExpectedContent = File.getRawData(MD.Memory);
if (!ExpectedContent)
return ExpectedContent.takeError();
Ranges.push_back({MD, *ExpectedContent});
}
return llvm::make_unique<MemoryListStream>(std::move(Ranges));
}
case StreamKind::ModuleList: {
auto ExpectedList = File.getModuleList();
if (!ExpectedList)
return ExpectedList.takeError();
std::vector<ModuleListStream::entry_type> Modules;
for (const Module &M : *ExpectedList) {
auto ExpectedName = File.getString(M.ModuleNameRVA);
if (!ExpectedName)
return ExpectedName.takeError();
auto ExpectedCv = File.getRawData(M.CvRecord);
if (!ExpectedCv)
return ExpectedCv.takeError();
auto ExpectedMisc = File.getRawData(M.MiscRecord);
if (!ExpectedMisc)
return ExpectedMisc.takeError();
Modules.push_back(
{M, std::move(*ExpectedName), *ExpectedCv, *ExpectedMisc});
}
return llvm::make_unique<ModuleListStream>(std::move(Modules));
}
case StreamKind::RawContent:
return llvm::make_unique<RawContentStream>(StreamDesc.Type,
File.getRawStream(StreamDesc));
case StreamKind::SystemInfo: {
auto ExpectedInfo = File.getSystemInfo();
if (!ExpectedInfo)
return ExpectedInfo.takeError();
auto ExpectedCSDVersion = File.getString(ExpectedInfo->CSDVersionRVA);
if (!ExpectedCSDVersion)
return ExpectedInfo.takeError();
return llvm::make_unique<SystemInfoStream>(*ExpectedInfo,
std::move(*ExpectedCSDVersion));
}
case StreamKind::TextContent:
return llvm::make_unique<TextContentStream>(
StreamDesc.Type, toStringRef(File.getRawStream(StreamDesc)));
case StreamKind::ThreadList: {
auto ExpectedList = File.getThreadList();
if (!ExpectedList)
return ExpectedList.takeError();
std::vector<ThreadListStream::entry_type> Threads;
for (const Thread &T : *ExpectedList) {
auto ExpectedStack = File.getRawData(T.Stack.Memory);
if (!ExpectedStack)
return ExpectedStack.takeError();
auto ExpectedContext = File.getRawData(T.Context);
if (!ExpectedContext)
return ExpectedContext.takeError();
Threads.push_back({T, *ExpectedStack, *ExpectedContext});
}
return llvm::make_unique<ThreadListStream>(std::move(Threads));
}
}
llvm_unreachable("Unhandled stream kind!");
}
Expected<Object> Object::create(const object::MinidumpFile &File) {
std::vector<std::unique_ptr<Stream>> Streams;
Streams.reserve(File.streams().size());
for (const Directory &StreamDesc : File.streams()) {
auto ExpectedStream = Stream::create(StreamDesc, File);
if (!ExpectedStream)
return ExpectedStream.takeError();
Streams.push_back(std::move(*ExpectedStream));
}
return Object(File.header(), std::move(Streams));
}
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