public DebugInstructionException(DebugInstruction instruction, String message)
: base(message)
{
Instruction = instruction;
}
private void ReadDebugInfo(BinaryReader reader, MethodDefinition mdef, InstructionReader instructionReader,
uint debugOffset)
{
reader.PreserveCurrentPosition(debugOffset, () =>
{
var debugInfo = new DebugInfo(mdef.Body);
mdef.Body.DebugInfo = debugInfo;
uint lineStart = reader.ReadULEB128();
debugInfo.LineStart = lineStart;
uint parametersSize = reader.ReadULEB128();
for (int i = 0; i < parametersSize; i++)
{
long index = reader.ReadULEB128p1();
string name = null;
if (index != DexConsts.NoIndex && index >= 0)
name = strings[(int) index];
debugInfo.Parameters.Add(name);
}
while (true)
{
var ins = new DebugInstruction((DebugOpCodes) reader.ReadByte());
debugInfo.DebugInstructions.Add(ins);
uint registerIndex;
uint addrDiff;
long nameIndex;
long typeIndex;
long signatureIndex;
int lineDiff;
string name;
switch (ins.OpCode)
{
case DebugOpCodes.AdvancePc:
// uleb128 addr_diff
addrDiff = reader.ReadULEB128();
ins.Operands.Add(addrDiff);
break;
case DebugOpCodes.AdvanceLine:
// sleb128 line_diff
lineDiff = reader.ReadSLEB128();
ins.Operands.Add(lineDiff);
break;
case DebugOpCodes.EndLocal:
case DebugOpCodes.RestartLocal:
// uleb128 register_num
registerIndex = reader.ReadULEB128();
ins.Operands.Add(mdef.Body.Registers[(int) registerIndex]);
break;
case DebugOpCodes.SetFile:
// uleb128p1 name_idx
nameIndex = reader.ReadULEB128p1();
name = null;
if (nameIndex != DexConsts.NoIndex && nameIndex >= 0)
name = strings[(int) nameIndex];
ins.Operands.Add(name);
break;
case DebugOpCodes.StartLocalExtended:
case DebugOpCodes.StartLocal:
// StartLocalExtended : uleb128 register_num, uleb128p1 name_idx, uleb128p1 type_idx, uleb128p1 sig_idx
// StartLocal : uleb128 register_num, uleb128p1 name_idx, uleb128p1 type_idx
Boolean isExtended = ins.OpCode ==
DebugOpCodes.
StartLocalExtended;
registerIndex = reader.ReadULEB128();
ins.Operands.Add(mdef.Body.Registers[(int) registerIndex]);
nameIndex = reader.ReadULEB128p1();
name = null;
if (nameIndex != DexConsts.NoIndex && nameIndex >= 0)
name = strings[(int) nameIndex];
ins.Operands.Add(name);
typeIndex = reader.ReadULEB128p1();
TypeReference type = null;
if (typeIndex != DexConsts.NoIndex && typeIndex >= 0)
type = typeReferences[(int) typeIndex];
ins.Operands.Add(type);
if (isExtended)
{
signatureIndex = reader.ReadULEB128p1();
string signature = null;
if (signatureIndex != DexConsts.NoIndex && signatureIndex >= 0)
signature = strings[(int) signatureIndex];
ins.Operands.Add(signature);
}
break;
case DebugOpCodes.EndSequence:
return;
case DebugOpCodes.Special:
// between 0x0a and 0xff (inclusive)
case DebugOpCodes.SetPrologueEnd:
case DebugOpCodes.SetEpilogueBegin:
default:
break;
}
}
});
}
