internal LineNumberTable(MonoSymbolFile file, LineNumberEntry[] lines)
: this(file)
{
this._line_numbers = lines;
}
internal void Write(MonoSymbolFile file, MyBinaryWriter bw)
{
bw.WriteLeb128(Index);
bw.Write(Name);
bw.WriteLeb128(BlockIndex);
}
public SourceFileEntry(MonoSymbolFile file, string sourceFile, byte [] guid, byte [] checksum)
: this(file, sourceFile, sourceFile, guid, checksum)
{
}
internal LocalVariableEntry(MonoSymbolFile file, MyBinaryReader reader)
{
Index = reader.ReadLeb128();
Name = reader.ReadString();
BlockIndex = reader.ReadLeb128();
}
internal void WriteData(MonoSymbolFile file, MyBinaryWriter bw)
{
if (index <= 0)
{
throw new InvalidOperationException();
}
LocalVariableTableOffset = (int)bw.BaseStream.Position;
int num_locals = locals != null ? locals.Length : 0;
bw.WriteLeb128(num_locals);
for (int i = 0; i < num_locals; i++)
{
locals [i].Write(file, bw);
}
file.LocalCount += num_locals;
CodeBlockTableOffset = (int)bw.BaseStream.Position;
int num_code_blocks = code_blocks != null ? code_blocks.Length : 0;
bw.WriteLeb128(num_code_blocks);
for (int i = 0; i < num_code_blocks; i++)
{
code_blocks [i].Write(bw);
}
ScopeVariableTableOffset = (int)bw.BaseStream.Position;
int num_scope_vars = scope_vars != null ? scope_vars.Length : 0;
bw.WriteLeb128(num_scope_vars);
for (int i = 0; i < num_scope_vars; i++)
{
scope_vars [i].Write(bw);
}
if (real_name != null)
{
RealNameOffset = (int)bw.BaseStream.Position;
bw.Write(real_name);
}
foreach (var lne in lnt.LineNumbers)
{
if (lne.EndRow != -1 || lne.EndColumn != -1)
{
flags |= Flags.EndInfoIncluded;
}
}
LineNumberTableOffset = (int)bw.BaseStream.Position;
lnt.Write(file, bw, (flags & Flags.ColumnsInfoIncluded) != 0, (flags & Flags.EndInfoIncluded) != 0);
DataOffset = (int)bw.BaseStream.Position;
bw.WriteLeb128(CompileUnitIndex);
bw.WriteLeb128(LocalVariableTableOffset);
bw.WriteLeb128(NamespaceID);
bw.WriteLeb128(CodeBlockTableOffset);
bw.WriteLeb128(ScopeVariableTableOffset);
bw.WriteLeb128(RealNameOffset);
bw.WriteLeb128((int)flags);
}
internal MethodEntry(MonoSymbolFile file, CompileUnitEntry comp_unit,
int token, ScopeVariable[] scope_vars,
LocalVariableEntry[] locals, LineNumberEntry[] lines,
CodeBlockEntry[] code_blocks, string real_name,
Flags flags, int namespace_id)
{
this.SymbolFile = file;
this.real_name = real_name;
this.locals = locals;
this.code_blocks = code_blocks;
this.scope_vars = scope_vars;
this.flags = flags;
index = -1;
Token = token;
CompileUnitIndex = comp_unit.Index;
CompileUnit = comp_unit;
NamespaceID = namespace_id;
CheckLineNumberTable(lines);
lnt = new LineNumberTable(file, lines);
file.NumLineNumbers += lines.Length;
int num_locals = locals != null ? locals.Length : 0;
if (num_locals <= 32)
{
// Most of the time, the O(n^2) factor is actually
// less than the cost of allocating the hash table,
// 32 is a rough number obtained through some testing.
for (int i = 0; i < num_locals; i++)
{
string nm = locals [i].Name;
for (int j = i + 1; j < num_locals; j++)
{
if (locals [j].Name == nm)
{
flags |= Flags.LocalNamesAmbiguous;
goto locals_check_done;
}
}
}
locals_check_done:
;
}
else
{
var local_names = new Dictionary <string, LocalVariableEntry> ();
foreach (LocalVariableEntry local in locals)
{
if (local_names.ContainsKey(local.Name))
{
flags |= Flags.LocalNamesAmbiguous;
break;
}
local_names.Add(local.Name, local);
}
}
}
void DoRead(MonoSymbolFile file, MyBinaryReader br, bool includesColumns, bool includesEnds)
{
var lines = new List <LineNumberEntry> ();
bool is_hidden = false, modified = false;
int stm_line = 1, stm_offset = 0, stm_file = 1;
while (true)
{
byte opcode = br.ReadByte();
if (opcode == 0)
{
byte size = br.ReadByte();
long end_pos = br.BaseStream.Position + size;
opcode = br.ReadByte();
if (opcode == DW_LNE_end_sequence)
{
if (modified)
{
lines.Add(new LineNumberEntry(
stm_file, stm_line, -1, stm_offset, is_hidden));
}
break;
}
else if (opcode == DW_LNE_MONO_negate_is_hidden)
{
is_hidden = !is_hidden;
modified = true;
}
else if ((opcode >= DW_LNE_MONO__extensions_start) &&
(opcode <= DW_LNE_MONO__extensions_end))
{
; // reserved for future extensions
}
else
{
throw new MonoSymbolFileException("Unknown extended opcode {0:x}", opcode);
}
br.BaseStream.Position = end_pos;
continue;
}
else if (opcode < OpcodeBase)
{
switch (opcode)
{
case DW_LNS_copy:
lines.Add(new LineNumberEntry(
stm_file, stm_line, -1, stm_offset, is_hidden));
modified = false;
break;
case DW_LNS_advance_pc:
stm_offset += br.ReadLeb128();
modified = true;
break;
case DW_LNS_advance_line:
stm_line += br.ReadLeb128();
modified = true;
break;
case DW_LNS_set_file:
stm_file = br.ReadLeb128();
modified = true;
break;
case DW_LNS_const_add_pc:
stm_offset += MaxAddressIncrement;
modified = true;
break;
default:
throw new MonoSymbolFileException(
"Unknown standard opcode {0:x} in LNT",
opcode);
}
}
else
{
opcode -= OpcodeBase;
stm_offset += opcode / LineRange;
stm_line += LineBase + (opcode % LineRange);
lines.Add(new LineNumberEntry(
stm_file, stm_line, -1, stm_offset, is_hidden));
modified = false;
}
}
_line_numbers = lines.ToArray();
if (includesColumns)
{
for (int i = 0; i < _line_numbers.Length; ++i)
{
var ln = _line_numbers[i];
if (ln.Row >= 0)
{
ln.Column = br.ReadLeb128();
}
}
}
if (includesEnds)
{
for (int i = 0; i < _line_numbers.Length; ++i)
{
var ln = _line_numbers[i];
int row = br.ReadLeb128();
if (row == 0xffffff)
{
ln.EndRow = -1;
ln.EndColumn = -1;
}
else
{
ln.EndRow = ln.Row + row;
ln.EndColumn = br.ReadLeb128();
}
}
}
}
internal void Write(MonoSymbolFile file, MyBinaryWriter bw, bool hasColumnsInfo, bool hasEndInfo)
{
int start = (int)bw.BaseStream.Position;
bool last_is_hidden = false;
int last_line = 1, last_offset = 0, last_file = 1;
for (int i = 0; i < LineNumbers.Length; i++)
{
int line_inc = LineNumbers [i].Row - last_line;
int offset_inc = LineNumbers [i].Offset - last_offset;
if (LineNumbers [i].File != last_file)
{
bw.Write(DW_LNS_set_file);
bw.WriteLeb128(LineNumbers [i].File);
last_file = LineNumbers [i].File;
}
if (LineNumbers [i].IsHidden != last_is_hidden)
{
bw.Write((byte)0);
bw.Write((byte)1);
bw.Write(DW_LNE_MONO_negate_is_hidden);
last_is_hidden = LineNumbers [i].IsHidden;
}
if (offset_inc >= MaxAddressIncrement)
{
if (offset_inc < 2 * MaxAddressIncrement)
{
bw.Write(DW_LNS_const_add_pc);
offset_inc -= MaxAddressIncrement;
}
else
{
bw.Write(DW_LNS_advance_pc);
bw.WriteLeb128(offset_inc);
offset_inc = 0;
}
}
if ((line_inc < LineBase) || (line_inc >= LineBase + LineRange))
{
bw.Write(DW_LNS_advance_line);
bw.WriteLeb128(line_inc);
if (offset_inc != 0)
{
bw.Write(DW_LNS_advance_pc);
bw.WriteLeb128(offset_inc);
}
bw.Write(DW_LNS_copy);
}
else
{
byte opcode;
opcode = (byte)(line_inc - LineBase + (LineRange * offset_inc) +
OpcodeBase);
bw.Write(opcode);
}
last_line = LineNumbers [i].Row;
last_offset = LineNumbers [i].Offset;
}
bw.Write((byte)0);
bw.Write((byte)1);
bw.Write(DW_LNE_end_sequence);
if (hasColumnsInfo)
{
for (int i = 0; i < LineNumbers.Length; i++)
{
var ln = LineNumbers [i];
if (ln.Row >= 0)
{
bw.WriteLeb128(ln.Column);
}
}
}
if (hasEndInfo)
{
for (int i = 0; i < LineNumbers.Length; i++)
{
var ln = LineNumbers [i];
if (ln.EndRow == -1 || ln.EndColumn == -1 || ln.Row > ln.EndRow)
{
bw.WriteLeb128(0xffffff);
}
else
{
bw.WriteLeb128(ln.EndRow - ln.Row);
bw.WriteLeb128(ln.EndColumn);
}
}
}
file.ExtendedLineNumberSize += (int)bw.BaseStream.Position - start;
}