public async Task <bool> ShouldAttachToIncosistentCoreFileAsync(DumpReadWarning warning)
{
await _taskContext.Factory.SwitchToMainThreadAsync();
string dialogMessage = null;
string dialogTitle = null;
switch (warning)
{
case DumpReadWarning.FileDoesNotExist:
_dialogUtil.ShowError(ErrorStrings.CoreFileDoesNotExist);
return(false);
case DumpReadWarning.ElfHeaderIsCorrupted:
dialogTitle = ErrorStrings.DialogTitleWarning;
dialogMessage = ErrorStrings.CoreFileCorruptedWarningMessage;
break;
case DumpReadWarning.FileIsTruncated:
dialogTitle = ErrorStrings.DialogTitleWarning;
dialogMessage = ErrorStrings.CoreFileTruncatedWarningMessage;
break;
case DumpReadWarning.ExecutableBuildIdMissing:
dialogTitle = ErrorStrings.CoreAttachBuildIdMissingWarningTitle;
dialogMessage = ErrorStrings.CoreAttachBuildIdMissingWarningMessage;
break;
case DumpReadWarning.None:
break;
}
return(_dialogUtil.ShowYesNoWarning(dialogMessage, dialogTitle));
}
public DumpReadResult(IEnumerable <DumpModule> modules, DumpReadWarning warning)
{
Modules = modules;
Warning = warning;
}
DumpReadResult GetModules(BinaryReader dumpReader)
{
ulong dumpSize = (ulong)dumpReader.BaseStream.Length;
var moduleList = new List <DumpModule>();
if (!ElfHeader.TryRead(dumpReader, out ElfHeader elfHeader))
{
return(new DumpReadResult(moduleList, DumpReadWarning.ElfHeaderIsCorrupted));
}
var fileSections = new List <FileSection>();
var loadSegments = new List <ProgramHeader>();
DumpReadWarning warning = DumpReadWarning.None;
// Go through each program header sections, look for the notes sections and the
// loadable segments.
for (ulong i = 0; i < elfHeader.EntriesCount; ++i)
{
ulong headerOffset = elfHeader.StartOffset + i * elfHeader.EntrySize;
dumpReader.BaseStream.Seek((long)headerOffset, SeekOrigin.Begin);
if (!ProgramHeader.TryRead(dumpReader, out ProgramHeader header))
{
return(new DumpReadResult(moduleList, DumpReadWarning.FileIsTruncated));
}
// Set the warning if the program header is outside of the file.
if (header.OffsetInFile + header.SizeInFile > dumpSize &&
warning == DumpReadWarning.None)
{
warning = DumpReadWarning.FileIsTruncated;
}
switch (header.HeaderType)
{
// We found the notes section. Now we need to extract module section from
// the NT_FILE notes.
case ProgramHeader.Type.NoteSegment:
if (header.SizeInFile > int.MaxValue)
{
Trace.WriteLine("Can't extract note segment sections from program" +
"header. Note size is more then int.Max.");
continue;
}
int size = (int)header.SizeInFile;
dumpReader.BaseStream.Seek((long)header.OffsetInFile, SeekOrigin.Begin);
byte[] notesBytes = dumpReader.ReadBytes(size);
var notesStream = new MemoryStream(notesBytes);
using (var notesReader = new BinaryReader(notesStream))
{
IEnumerable <FileSection> moduleSections =
NoteSection.ReadModuleSections(notesReader, size);
fileSections.AddRange(moduleSections);
}
break;
// Collect memory mappings for the core files.
case ProgramHeader.Type.LoadableSegment:
loadSegments.Add(header);
break;
}
}
var loadableSegmentsReader = new ModuleReader(loadSegments, dumpReader);
// Go through each module and try to find build id in the mapped regions.
foreach (FileSection file in fileSections)
{
DumpModule module = loadableSegmentsReader.GetModule(file);
if (module.Id == BuildId.Empty)
{
Trace.WriteLine($"Can't find build id for module {module.Path}.");
}
else
{
moduleList.Add(module);
}
}
return(new DumpReadResult(moduleList, warning));
}
