private static IEnumerable <DisasmInstruction> DecodeSourceAnnotatedDisassemblyInstructions(DebuggedProcess process, TupleValue[] items)
{
foreach (var item in items)
{
uint line = item.FindUint("line");
string file = process.GetMappedFileFromTuple(item);
ValueListValue asm_items = item.Find <ValueListValue>("line_asm_insn");
uint lineOffset = 0;
foreach (var asm_item in asm_items.Content)
{
DisasmInstruction disassemblyData = new DisasmInstruction();
disassemblyData.Addr = asm_item.FindAddr("address");
disassemblyData.AddressString = asm_item.FindString("address");
disassemblyData.Symbol = asm_item.TryFindString("func-name");
disassemblyData.Offset = asm_item.Contains("offset") ? asm_item.FindUint("offset") : 0;
disassemblyData.Opcode = asm_item.FindString("inst");
disassemblyData.CodeBytes = asm_item.TryFindString("opcodes");
disassemblyData.Line = line;
disassemblyData.File = file;
if (lineOffset == 0)
{
lineOffset = disassemblyData.Offset; // offset to start of current line
}
disassemblyData.OffsetInLine = disassemblyData.Offset - lineOffset;
yield return(disassemblyData);
}
}
}
private static DisasmInstruction[] DecodeDisassemblyInstructions(TupleValue[] items)
{
DisasmInstruction[] instructions = new DisasmInstruction[items.Length];
for (int i = 0; i < items.Length; i++)
{
DisasmInstruction inst = new DisasmInstruction();
inst.Addr = items[i].FindAddr("address");
inst.AddressString = items[i].FindString("address");
inst.Symbol = items[i].TryFindString("func-name");
inst.Offset = items[i].Contains("offset") ? items[i].FindUint("offset") : 0;
inst.Opcode = items[i].FindString("inst");
inst.Line = 0;
inst.File = null;
instructions[i] = inst;
}
return(instructions);
}
// https://sourceware.org/gdb/current/onlinedocs/gdb/GDB_002fMI-Data-Manipulation.html#GDB_002fMI-Data-Manipulation
// NB: the spec is wrong, offset and func-name are optional
private static DisasmInstruction[] DecodeDisassemblyInstructions(TupleValue[] items)
{
var instructions = new DisasmInstruction[items.Length];
for (int i = 0; i < items.Length; i++)
{
var inst = new DisasmInstruction();
inst.Addr = items[i].FindAddr("address");
inst.AddressString = items[i].FindString("address");
int offset = items[i].Contains("offset") ? items[i].FindInt("offset") : 0;
if (offset > 0) // negative offset seen after throw
{
inst.Offset = (uint)offset;
inst.Symbol = items[i].TryFindString("func-name");
}
inst.Opcode = items[i].FindString("inst");
inst.CodeBytes = items[i].TryFindString("opcodes");
inst.Line = 0;
inst.File = null;
instructions[i] = inst;
}
return(instructions);
}
public DisassemblyBlock(DisasmInstruction[] ins)
{
Touch = ++s_touchCount;
_instructions = ins;
}
private static IEnumerable<DisasmInstruction> DecodeSourceAnnotatedDisassemblyInstructions(TupleValue[] items)
{
foreach (var item in items)
{
uint line = item.FindUint("line");
string file = item.FindString("file");
ValueListValue asm_items = item.Find<ValueListValue>("line_asm_insn");
uint lineOffset = 0;
foreach (var asm_item in asm_items.Content)
{
DisasmInstruction disassemblyData = new DisasmInstruction();
disassemblyData.Addr = asm_item.FindAddr("address");
disassemblyData.AddressString = asm_item.FindString("address");
disassemblyData.Symbol = asm_item.TryFindString("func-name");
disassemblyData.Offset = asm_item.Contains("offset") ? asm_item.FindUint("offset") : 0;
disassemblyData.Opcode = asm_item.FindString("inst");
disassemblyData.Line = line;
disassemblyData.File = file;
if (lineOffset == 0)
{
lineOffset = disassemblyData.Offset; // offset to start of current line
}
disassemblyData.OffsetInLine = disassemblyData.Offset - lineOffset;
yield return disassemblyData;
}
}
}
private static DisasmInstruction[] DecodeDisassemblyInstructions(TupleValue[] items)
{
DisasmInstruction[] instructions = new DisasmInstruction[items.Length];
for (int i = 0; i < items.Length; i++)
{
DisasmInstruction inst = new DisasmInstruction();
inst.Addr = items[i].FindAddr("address");
inst.AddressString = items[i].FindString("address");
inst.Symbol = items[i].TryFindString("func-name");
inst.Offset = items[i].Contains("offset") ? items[i].FindUint("offset") : 0;
inst.Opcode = items[i].FindString("inst");
inst.Line = 0;
inst.File = null;
instructions[i] = inst;
}
return instructions;
}
private async Task<DisasmInstruction[]> VerifyDisassembly(DisasmInstruction[] instructions, ulong startAddress, ulong targetAddress)
{
int count = 0;
while (instructions[instructions.Length - 1].Addr != targetAddress && count < _process.MaxInstructionSize)
{
instructions = null; // throw away the previous instructions
count++;
startAddress--; // back up one byte
instructions = await Disassemble(_process, startAddress, targetAddress + 1); // try again
}
return instructions;
}
