ElfCoreDump is not respecting 4-byte padding between Note entries

[dedmen]

https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter6-18048.html

Padding is present, if necessary, to ensure 4-byte alignment for the descriptor. Such padding is not included in namesz.

Thats done correctly here with NameSize:

SharpDebug/Source/SharpDebug.DwarfSymbolProvider/ElfCoreDump.cs

Line 106 in 0a19533

int nameEnd = reader.Position + (int)note.NameSize;

But the 4-byte padding to the next note is not considered.

The first descsz bytes in desc hold the note descriptor. If no descriptor is present, descsz contains the value zero. Padding is present, if necessary, to ensure 4-byte alignment for the next note entry. Such padding is not included in descsz.

descsz also needs to be 4 byte padded same as name.

Ghetto fix

SharpDebug/Source/SharpDebug.DwarfSymbolProvider/ElfCoreDump.cs

Lines 115 to 117 in 0a19533

	string name = reader.ReadString();
	reader.Position = nameEnd;
	byte[] content = reader.ReadBlock(note.n_descsz);

                            string name = reader.ReadString();
                            reader.Position = nameEnd;
                            int descEnd = reader.Position + (int)note.DescSizeWithPadding;
                            byte[] content = reader.ReadBlock(note.n_descsz);
                            reader.Position = descEnd;

Will make a pull request someday when I get the time for it