-unsigned MCContext::GetDwarfFile(StringRef FileName, unsigned FileNumber) {
- // TODO: a FileNumber of zero says to use the next available file number.
- // Note: in GenericAsmParser::ParseDirectiveFile() FileNumber was checked
- // to not be less than one. This needs to be change to be not less than zero.
-
- // Make space for this FileNumber in the MCDwarfFiles vector if needed.
- if (FileNumber >= MCDwarfFiles.size()) {
- MCDwarfFiles.resize(FileNumber + 1);
- } else {
- MCDwarfFile *&ExistingFile = MCDwarfFiles[FileNumber];
- if (ExistingFile)
- // It is an error to use see the same number more than once.
- return 0;
- }
-
- // Get the new MCDwarfFile slot for this FileNumber.
- MCDwarfFile *&File = MCDwarfFiles[FileNumber];
-
- // Separate the directory part from the basename of the FileName.
- std::pair<StringRef, StringRef> Slash = FileName.rsplit('/');
-
- // Find or make a entry in the MCDwarfDirs vector for this Directory.
- StringRef Name;
- unsigned DirIndex;
- // Capture directory name.
- if (Slash.second.empty()) {
- Name = Slash.first;
- DirIndex = 0; // For FileNames with no directories a DirIndex of 0 is used.
- } else {
- StringRef Directory = Slash.first;
- Name = Slash.second;
- for (DirIndex = 0; DirIndex < MCDwarfDirs.size(); DirIndex++) {
- if (Directory == MCDwarfDirs[DirIndex])
- break;
- }
- if (DirIndex >= MCDwarfDirs.size()) {
- char *Buf = static_cast<char *>(Allocate(Directory.size()));
- memcpy(Buf, Directory.data(), Directory.size());
- MCDwarfDirs.push_back(StringRef(Buf, Directory.size()));
- }
- // The DirIndex is one based, as DirIndex of 0 is used for FileNames with
- // no directories. MCDwarfDirs[] is unlike MCDwarfFiles[] in that the
- // directory names are stored at MCDwarfDirs[DirIndex-1] where FileNames are
- // stored at MCDwarfFiles[FileNumber].Name .
- DirIndex++;
- }
-
- // Now make the MCDwarfFile entry and place it in the slot in the MCDwarfFiles
- // vector.
- char *Buf = static_cast<char *>(Allocate(Name.size()));
- memcpy(Buf, Name.data(), Name.size());
- File = new (*this) MCDwarfFile(StringRef(Buf, Name.size()), DirIndex);
-
- // return the allocated FileNumber.
- return FileNumber;
+unsigned MCContext::GetDwarfFile(StringRef Directory, StringRef FileName,
+ unsigned FileNumber, unsigned CUID) {
+ MCDwarfLineTable &Table = MCDwarfLineTablesCUMap[CUID];
+ return Table.getFile(Directory, FileName, FileNumber);