/// <summary>
/// Gets the thread stack trace.
/// </summary>
/// <param name="threadIndex">Index of the thread.</param>
/// <param name="dumpFileMemoryReader">The dump file memory reader.</param>
/// <param name="process">Process being debugged.</param>
/// <param name="symbolProvider">The symbol provider.</param>
/// <returns>Array of tuples of instruction offset, stack offset and frame offset.</returns>
public Tuple <ulong, ulong, ulong>[] GetThreadStackTrace(int threadIndex, DumpFileMemoryReader dumpFileMemoryReader, Process process, DwarfSymbolProvider symbolProvider)
{
const int pointerSize = 8;
elf_prstatus prstatus = threads[threadIndex];
ulong bp = prstatus.pr_reg[X64RegisterIndex.RBP];
ulong ip = prstatus.pr_reg[X64RegisterIndex.RIP];
List <Tuple <ulong, ulong, ulong> > result = new List <Tuple <ulong, ulong, ulong> >();
ulong segmentStartAddress, segmentSize;
dumpFileMemoryReader.GetMemoryRange(bp, out segmentStartAddress, out segmentSize);
while (bp >= segmentStartAddress && bp < segmentStartAddress + segmentSize)
{
result.Add(Tuple.Create(ip, bp, bp));
ulong savedLocationForRegisters = bp;
Module module = process.GetModuleByInnerAddress(ip);
if (module != null)
{
DwarfSymbolProviderModule symbolProviderModule = symbolProvider.GetSymbolProviderModule(module) as DwarfSymbolProviderModule;
if (symbolProviderModule != null)
{
ThreadContext frameContext = new ThreadContext(ip, bp, bp, null);
ulong canonicalFrameAddress = symbolProviderModule.GetFunctionCanonicalFrameAddress(process, ip, frameContext);
if (canonicalFrameAddress != 0)
{
savedLocationForRegisters = canonicalFrameAddress - pointerSize * 2;
}
}
}
MemoryBuffer buffer = dumpFileMemoryReader.ReadMemory(savedLocationForRegisters, pointerSize * 2);
bp = UserType.ReadPointer(buffer, 0, pointerSize);
ip = UserType.ReadPointer(buffer, pointerSize, pointerSize);
}
return(result.ToArray());
}
/// <summary>
/// Initializes a new instance of the <see cref="DwarfCodeGenModuleProvider"/> class.
/// </summary>
public DwarfCodeGenModuleProvider()
{
symbolProvider = new DwarfSymbolProvider();
}
/// <summary>
/// Gets the thread stack trace.
/// </summary>
/// <param name="threadIndex">Index of the thread.</param>
/// <param name="process">Process being debugged.</param>
/// <param name="symbolProvider">The symbol provider.</param>
/// <returns>Array of tuples of instruction offset, stack offset and frame offset.</returns>
public Tuple <ulong, ulong, ulong>[] GetThreadStackTrace(int threadIndex, Process process, DwarfSymbolProvider symbolProvider)
{
return(instance.GetThreadStackTrace(threadIndex, DumpFileMemoryReader, process, symbolProvider));
}
