mirror of
https://github.com/RPCS3/llvm.git
synced 2025-05-25 14:56:01 +00:00
96678fa6d8
r296215, "[PDB] General improvements to Stream library." r296217, "Disable BinaryStreamTest.StreamReaderObject temporarily." r296220, "Re-enable BinaryStreamTest.StreamReaderObject." r296244, "[PDB] Disable some tests that are breaking bots." r296249, "Add static_cast to silence -Wc++11-narrowing." std::errc::no_buffer_space should be used for OS-oriented errors for socket transmission. (Seek discussions around llvm/xray.) I could substitute s/no_buffer_space/others/g, but I revert whole them ATM. Could we define and use LLVM errors there? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296258 91177308-0d34-0410-b5e6-96231b3b80d8
86 lines
2.9 KiB
C++
86 lines
2.9 KiB
C++
//===- ModStream.cpp - PDB Module Info Stream Access ----------------------===//
|
|
//
|
|
// 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/ModStream.h"
|
|
#include "llvm/ADT/iterator_range.h"
|
|
#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
|
|
#include "llvm/DebugInfo/MSF/BinaryStreamReader.h"
|
|
#include "llvm/DebugInfo/MSF/BinaryStreamRef.h"
|
|
#include "llvm/DebugInfo/PDB/Native/ModInfo.h"
|
|
#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
|
|
#include "llvm/DebugInfo/PDB/Native/RawError.h"
|
|
#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
|
|
#include "llvm/Support/Error.h"
|
|
#include <algorithm>
|
|
#include <cstdint>
|
|
|
|
using namespace llvm;
|
|
using namespace llvm::msf;
|
|
using namespace llvm::pdb;
|
|
|
|
ModStream::ModStream(const ModInfo &Module,
|
|
std::unique_ptr<MappedBlockStream> Stream)
|
|
: Mod(Module), Stream(std::move(Stream)) {}
|
|
|
|
ModStream::~ModStream() = default;
|
|
|
|
Error ModStream::reload() {
|
|
StreamReader Reader(*Stream);
|
|
|
|
uint32_t SymbolSize = Mod.getSymbolDebugInfoByteSize();
|
|
uint32_t C11Size = Mod.getLineInfoByteSize();
|
|
uint32_t C13Size = Mod.getC13LineInfoByteSize();
|
|
|
|
if (C11Size > 0 && C13Size > 0)
|
|
return make_error<RawError>(raw_error_code::corrupt_file,
|
|
"Module has both C11 and C13 line info");
|
|
|
|
ReadableStreamRef S;
|
|
|
|
if (auto EC = Reader.readInteger(Signature, llvm::support::little))
|
|
return EC;
|
|
if (auto EC = Reader.readArray(SymbolsSubstream, SymbolSize - 4))
|
|
return EC;
|
|
|
|
if (auto EC = Reader.readStreamRef(LinesSubstream, C11Size))
|
|
return EC;
|
|
if (auto EC = Reader.readStreamRef(C13LinesSubstream, C13Size))
|
|
return EC;
|
|
|
|
StreamReader LineReader(C13LinesSubstream);
|
|
if (auto EC = LineReader.readArray(LineInfo, LineReader.bytesRemaining()))
|
|
return EC;
|
|
|
|
uint32_t GlobalRefsSize;
|
|
if (auto EC = Reader.readInteger(GlobalRefsSize, llvm::support::little))
|
|
return EC;
|
|
if (auto EC = Reader.readStreamRef(GlobalRefsSubstream, GlobalRefsSize))
|
|
return EC;
|
|
if (Reader.bytesRemaining() > 0)
|
|
return make_error<RawError>(raw_error_code::corrupt_file,
|
|
"Unexpected bytes in module stream.");
|
|
|
|
return Error::success();
|
|
}
|
|
|
|
iterator_range<codeview::CVSymbolArray::Iterator>
|
|
ModStream::symbols(bool *HadError) const {
|
|
// It's OK if the stream is empty.
|
|
if (SymbolsSubstream.getUnderlyingStream().getLength() == 0)
|
|
return make_range(SymbolsSubstream.end(), SymbolsSubstream.end());
|
|
return make_range(SymbolsSubstream.begin(HadError), SymbolsSubstream.end());
|
|
}
|
|
|
|
iterator_range<codeview::ModuleSubstreamArray::Iterator>
|
|
ModStream::lines(bool *HadError) const {
|
|
return make_range(LineInfo.begin(HadError), LineInfo.end());
|
|
}
|
|
|
|
Error ModStream::commit() { return Error::success(); }
|