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//===- ModuleDebugFileChecksumFragment.cpp ----------------------*- 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/CodeView/ModuleDebugFileChecksumFragment.h"
#include "llvm/DebugInfo/CodeView/CodeViewError.h"
#include "llvm/Support/BinaryStreamReader.h"
using namespace llvm;
using namespace llvm::codeview;
struct FileChecksumEntryHeader {
using ulittle32_t = support::ulittle32_t;
ulittle32_t FileNameOffset; // Byte offset of filename in global string table.
uint8_t ChecksumSize; // Number of bytes of checksum.
uint8_t ChecksumKind; // FileChecksumKind
// Checksum bytes follow.
};
Error llvm::VarStreamArrayExtractor<FileChecksumEntry>::extract(
BinaryStreamRef Stream, uint32_t &Len, FileChecksumEntry &Item, void *Ctx) {
BinaryStreamReader Reader(Stream);
const FileChecksumEntryHeader *Header;
if (auto EC = Reader.readObject(Header))
return EC;
Item.FileNameOffset = Header->FileNameOffset;
Item.Kind = static_cast<FileChecksumKind>(Header->ChecksumKind);
if (auto EC = Reader.readBytes(Item.Checksum, Header->ChecksumSize))
return EC;
Len = alignTo(Header->ChecksumSize + sizeof(FileChecksumEntryHeader), 4);
return Error::success();
}
Error ModuleDebugFileChecksumFragment::initialize(BinaryStreamReader Reader) {
if (auto EC = Reader.readArray(Checksums, Reader.bytesRemaining()))
return EC;
return Error::success();
}
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