mirror of
https://github.com/llvm/llvm-project.git
synced 2025-05-10 08:16:08 +00:00
edef14510e
Previously we wrote line information and file checksum information, but we did not write information about inlinee lines and functions. This patch adds support for that. llvm-svn: 301936
103 lines
3.4 KiB
C++
103 lines
3.4 KiB
C++
//===- 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 ModuleDebugFileChecksumFragmentRef::initialize(
|
|
BinaryStreamReader Reader) {
|
|
if (auto EC = Reader.readArray(Checksums, Reader.bytesRemaining()))
|
|
return EC;
|
|
|
|
return Error::success();
|
|
}
|
|
|
|
ModuleDebugFileChecksumFragment::ModuleDebugFileChecksumFragment()
|
|
: ModuleDebugFragment(ModuleDebugFragmentKind::FileChecksums) {}
|
|
|
|
void ModuleDebugFileChecksumFragment::addChecksum(uint32_t StringTableOffset,
|
|
FileChecksumKind Kind,
|
|
ArrayRef<uint8_t> Bytes) {
|
|
FileChecksumEntry Entry;
|
|
if (!Bytes.empty()) {
|
|
uint8_t *Copy = Storage.Allocate<uint8_t>(Bytes.size());
|
|
::memcpy(Copy, Bytes.data(), Bytes.size());
|
|
Entry.Checksum = makeArrayRef(Copy, Bytes.size());
|
|
}
|
|
Entry.FileNameOffset = StringTableOffset;
|
|
Entry.Kind = Kind;
|
|
Checksums.push_back(Entry);
|
|
|
|
// This maps the offset of this string in the string table to the offset
|
|
// of this checksum entry in the checksum buffer.
|
|
OffsetMap[StringTableOffset] = SerializedSize;
|
|
assert(SerializedSize % 4 == 0);
|
|
|
|
uint32_t Len = alignTo(sizeof(FileChecksumEntryHeader) + Bytes.size(), 4);
|
|
SerializedSize += Len;
|
|
}
|
|
|
|
uint32_t ModuleDebugFileChecksumFragment::calculateSerializedLength() {
|
|
return SerializedSize;
|
|
}
|
|
|
|
Error ModuleDebugFileChecksumFragment::commit(BinaryStreamWriter &Writer) {
|
|
for (const auto &FC : Checksums) {
|
|
FileChecksumEntryHeader Header;
|
|
Header.ChecksumKind = uint8_t(FC.Kind);
|
|
Header.ChecksumSize = FC.Checksum.size();
|
|
Header.FileNameOffset = FC.FileNameOffset;
|
|
if (auto EC = Writer.writeObject(Header))
|
|
return EC;
|
|
if (auto EC = Writer.writeArray(makeArrayRef(FC.Checksum)))
|
|
return EC;
|
|
if (auto EC = Writer.padToAlignment(4))
|
|
return EC;
|
|
}
|
|
return Error::success();
|
|
}
|
|
|
|
uint32_t ModuleDebugFileChecksumFragment::mapChecksumOffset(
|
|
uint32_t StringTableOffset) const {
|
|
auto Iter = OffsetMap.find(StringTableOffset);
|
|
assert(Iter != OffsetMap.end());
|
|
return Iter->second;
|
|
}
|