void read_cie(DwarfBinaryReader reader)
{
long length = reader.ReadInitialLength ();
long end_pos = reader.Position + length;
int id = reader.ReadInt32 ();
bool is_cie;
if (frame.is_ehframe)
is_cie = id == 0;
else
is_cie = id == -1;
if (!is_cie)
throw new InvalidOperationException ();
int version = reader.ReadByte ();
if (version != 1)
throw new DwarfException (
reader.Bfd, "Unknown version {0} in CIE",
version);
string augmentation = reader.ReadString ();
if (augmentation.StartsWith ("eh")) {
reader.ReadAddress ();
augmentation = augmentation.Substring (2);
}
code_alignment = reader.ReadLeb128 ();
data_alignment = reader.ReadSLeb128 ();
return_register = reader.ReadByte ();
for (int pos = 0; pos < augmentation.Length; pos++) {
if (augmentation [pos] == 'z') {
reader.ReadLeb128 ();
// has_z_augmentation = true;
continue;
}
if (augmentation [pos] == 'L')
continue;
else if (augmentation [pos] == 'R') {
encoding = reader.ReadByte ();
continue;
}
else if (augmentation [pos] == 'P') {
continue;
}
throw new DwarfException (
reader.Bfd, "Unknown augmentation `{0}' in CIE",
augmentation[pos]);
}
columns = new Column [return_register + 2];
for (int i = 0; i < columns.Length; i++)
columns [i] = new Column (State.Undefined);
Entry entry = new Entry (this);
entry.Read (reader, end_pos);
reader.Position = end_pos;
}
public FileEntry(LineNumberEngine engine, DwarfBinaryReader reader)
{
FileName = reader.ReadString ();
Directory = reader.ReadLeb128 ();
LastModificationTime = reader.ReadLeb128 ();
Length = reader.ReadLeb128 ();
string dir_name;
if (Directory > 0)
dir_name = (string) engine.include_dirs [Directory - 1];
else
dir_name = engine.compilation_dir;
string full_name;
if (dir_name != null)
full_name = Path.Combine (dir_name, FileName);
else
full_name = FileName;
File = engine.comp_unit.dwarf.GetSourceFile (full_name);
}
Hashtable read_pubtypes()
{
if (debug_pubtypes_reader == null)
return null;
DwarfBinaryReader reader = new DwarfBinaryReader (
bfd, (TargetBlob) debug_pubtypes_reader.Data, Is64Bit);
Hashtable names = Hashtable.Synchronized (new Hashtable ());
while (!reader.IsEof) {
long length = reader.ReadInitialLength ();
long stop = reader.Position + length;
int version = reader.ReadInt16 ();
long debug_offset = reader.ReadOffset ();
reader.ReadOffset ();
if (version != 2)
throw new DwarfException (
bfd, "Wrong version in .debug_pubtypes: {0}",
version);
while (reader.Position < stop) {
long offset = reader.ReadInt32 ();
if (offset == 0)
break;
string name = reader.ReadString ();
if (!names.Contains (name))
names.Add (name, new NameEntry (debug_offset, offset));
}
}
return names;
}
public LineNumberEngine(DieCompileUnit comp_unit, long offset,
string compilation_dir)
{
this.comp_unit = comp_unit;
this.offset = offset;
this.reader = comp_unit.dwarf.DebugLineReader;
this.compilation_dir = compilation_dir;
debug ("NEW LNE: {0}", offset);
reader.Position = offset;
length = reader.ReadInitialLength ();
end_offset = reader.Position + length;
version = reader.ReadInt16 ();
header_length = reader.ReadOffset ();
data_offset = reader.Position + header_length;
minimum_insn_length = reader.ReadByte ();
default_is_stmt = reader.ReadByte () != 0;
line_base = (sbyte) reader.ReadByte ();
line_range = reader.ReadByte ();
opcode_base = reader.ReadByte ();
standard_opcode_lengths = new int [opcode_base - 1];
for (int i = 0; i < opcode_base - 1; i++)
standard_opcode_lengths [i] = reader.ReadByte ();
include_dirs = new ArrayList ();
while (reader.PeekByte () != 0)
include_dirs.Add (reader.ReadString ());
reader.Position++;
source_files = new ArrayList ();
while (reader.PeekByte () != 0)
source_files.Add (new FileEntry (this, reader));
reader.Position++;
const_add_pc_range = ((0xff - opcode_base) / line_range) *
minimum_insn_length;
debug ("NEW LNE #1: {0} {1} - {2} {3} {4}",
reader.Position, offset, length,
data_offset, end_offset);
lines = new ArrayList ();
stm = new StatementMachine (this, data_offset, end_offset);
Read ();
lines.Sort ();
addresses = new LineNumber [lines.Count];
lines.CopyTo (addresses, 0);
}
