/// <summary>
/// Parses the specified data for all common information entries and frame description entries.
/// </summary>
/// <param name="data">The data memory reader.</param>
/// <param name="defaultAddressSize">Default size of the address.</param>
/// <returns>All the parsed common information entries</returns>
public static DwarfCommonInformationEntry[] ParseAll(DwarfMemoryReader data, byte defaultAddressSize)
{
Dictionary <int, DwarfCommonInformationEntry> entries = new Dictionary <int, DwarfCommonInformationEntry>();
while (!data.IsEnd)
{
bool is64bit;
int startPosition = data.Position;
ulong length = data.ReadLength(out is64bit);
int endPosition = data.Position + (int)length;
int offset = data.ReadOffset(is64bit);
DwarfCommonInformationEntry entry;
if (offset == -1)
{
entry = new DwarfCommonInformationEntry(data, defaultAddressSize, endPosition);
entries.Add(startPosition, entry);
}
else
{
if (!entries.TryGetValue(offset, out entry))
{
entry = ParseEntry(data, defaultAddressSize, offset);
entries.Add(offset, entry);
}
DwarfFrameDescriptionEntry description = new DwarfFrameDescriptionEntry(data, entry, endPosition);
entry.FrameDescriptionEntries.Add(description);
}
}
return(entries.Values.ToArray());
}
/// <summary>
/// Parses the common information entries.
/// </summary>
/// <param name="debugFrame">The debug frame.</param>
/// <param name="ehFrame">The exception handling frames.</param>
/// <param name="input">The input data for parsing configuration.</param>
private static DwarfCommonInformationEntry[] ParseCommonInformationEntries(byte[] debugFrame, byte[] ehFrame, DwarfExceptionHandlingFrameParsingInput input)
{
List <DwarfCommonInformationEntry> entries = new List <DwarfCommonInformationEntry>();
using (DwarfMemoryReader debugFrameReader = new DwarfMemoryReader(debugFrame))
{
entries.AddRange(DwarfCommonInformationEntry.ParseAll(debugFrameReader, input.DefaultAddressSize));
}
using (DwarfMemoryReader ehFrameReader = new DwarfMemoryReader(ehFrame))
{
entries.AddRange(DwarfExceptionHandlingCommonInformationEntry.ParseAll(ehFrameReader, input));
}
return(entries.ToArray());
}
/// <summary>
/// Parses the single entry from the specified data.
/// </summary>
/// <param name="data">The data memory reader.</param>
/// <param name="defaultAddressSize">Default size of the address.</param>
/// <param name="startPosition">The start position.</param>
/// <returns>Parsed common information entry.</returns>
private static DwarfCommonInformationEntry ParseEntry(DwarfMemoryReader data, byte defaultAddressSize, int startPosition)
{
int position = data.Position;
data.Position = startPosition;
bool is64bit;
ulong length = data.ReadLength(out is64bit);
int endPosition = data.Position + (int)length;
int offset = data.ReadOffset(is64bit);
if (offset != -1)
{
throw new Exception("Expected CommonInformationEntry");
}
DwarfCommonInformationEntry entry = new DwarfCommonInformationEntry(data, defaultAddressSize, endPosition);
data.Position = position;
return(entry);
}