private unsafe void SearchBlock <T, THelper>(Action <DbgMemory> yield, Span <byte> bytes, ulong searchMask, ulong searchValue, ulong page) where T : unmanaged where THelper : struct, IIntegralTypeHelper <T>
{
THelper helper = default;
T value = helper.ConvertUlong(searchValue);
T mask = helper.ConvertUlong(searchMask);
var dwords = MemoryMarshal.Cast <byte, T>(bytes);
for (int i = 0; i < dwords.Length; i++)
{
if (helper.AreEqual(helper.BitwiseAnd(dwords[i], mask), value))
{
int byteIdx = i * sizeof(T);
ulong address = page + (ulong)byteIdx;
var valueBytes = bytes.Slice(byteIdx, sizeof(T)).ToArray();
var result = new DbgMemory(address, valueBytes, Debugger)
{
DefaultDisplayFormat = helper.DisplayFormat
};
yield(result);
}
}
}
protected override void ProcessRecord()
{
base.ProcessRecord();
if (0 == Address)
{
Address = NextAddressToDump;
}
if (!MyInvocation.BoundParameters.ContainsKey("DefaultDisplayFormat"))
{
DefaultDisplayFormat = NextDefaultFormat;
}
if (!MyInvocation.BoundParameters.ContainsKey("LengthInBytes"))
{
if (DefaultDisplayFormat != NextDefaultFormat)
{
// We're switching formats; may need to also switch the default size.
LengthInBytes = _GetDefaultReadSize(DefaultDisplayFormat);
}
else
{
LengthInBytes = NextDefaultLengthInBytes;
}
}
if (0 == LengthInBytes)
{
LengthInBytes = _GetDefaultReadSize(DefaultDisplayFormat);
}
// Okay, we've got a length + display format, but one or the other may be
// defaulted. In that case, we want to make sure that the LengthInBytes is
// compatible with the display format. (And actually, even if they were both
// explicitly specified, we /still/ want to make sure they are compatible.)
//
// For instance, if the LengthInBytes was explicitly specified as 4, and the
// display format got defaulted to PointersWithAscii, on a 64-bit target, we
// are not going to be able to display anything (because we won't have read
// even a single full pointer)--we need to downgrade the display format to fit
// the size requested, if possible.
if (!_IsDisplayFormatCompatibleWithReadSize(LengthInBytes, DefaultDisplayFormat, Debugger.PointerSize))
{
var compatibleDisplayFormat = _GetDefaultDisplayFormatForSize(LengthInBytes, Debugger.PointerSize);
if (MyInvocation.BoundParameters.ContainsKey("DefaultDisplayFormat"))
{
SafeWriteWarning("The specified display format ({0}) is not compatible with the byte length requested ({1}). The {2} format will be used instead.",
DefaultDisplayFormat,
LengthInBytes,
compatibleDisplayFormat);
}
// else just silently fix it up.
DefaultDisplayFormat = compatibleDisplayFormat;
}
if (!MyInvocation.BoundParameters.ContainsKey("DefaultDisplayColumns"))
{
DefaultDisplayColumns = NextDefaultNumColumns;
}
var raw = Debugger.ReadMem(Address, LengthInBytes, false);
if (raw.Length != LengthInBytes)
{
WriteWarning(Util.Sprintf("Actual memory read (0x{0:x} bytes) is less than requested (0x{1:x} bytes).",
raw.Length,
LengthInBytes));
}
var mem = new DbgMemory(Address,
raw,
Debugger.TargetIs32Bit,
false, // TODO: actually determine endianness
Debugger);
mem.DefaultDisplayFormat = DefaultDisplayFormat;
mem.DefaultDisplayColumns = DefaultDisplayColumns;
NextAddressToDump = Address + (ulong)raw.Length;
NextDefaultFormat = DefaultDisplayFormat;
NextDefaultLengthInBytes = LengthInBytes;
NextDefaultNumColumns = DefaultDisplayColumns;
WriteObject(mem);
DbgProvider.SetAutoRepeatCommand(Util.Sprintf("{0}", MyInvocation.InvocationName));
} // end ProcessRecord()
protected override void ProcessRecord()
{
base.ProcessRecord();
if (0 == Address)
{
Address = NextAddressToDump;
}
if (!MyInvocation.BoundParameters.ContainsKey("DefaultDisplayFormat"))
{
DefaultDisplayFormat = NextDefaultFormat;
}
if (!MyInvocation.BoundParameters.ContainsKey("LengthInBytes"))
{
if (DefaultDisplayFormat != NextDefaultFormat)
{
// We're switching formats; may need to also switch the default size.
LengthInBytes = _GetDefaultReadSize(DefaultDisplayFormat);
}
else
{
LengthInBytes = NextDefaultLengthInBytes;
}
}
if (0 == LengthInBytes)
{
LengthInBytes = _GetDefaultReadSize(DefaultDisplayFormat);
}
if (!MyInvocation.BoundParameters.ContainsKey("DefaultDisplayColumns"))
{
DefaultDisplayColumns = NextDefaultNumColumns;
}
var raw = Debugger.ReadMem(Address, LengthInBytes, false);
if (raw.Length != LengthInBytes)
{
WriteWarning(Util.Sprintf("Actual memory read (0x{0:x} bytes) is less than requested (0x{1:x} bytes).",
raw.Length,
LengthInBytes));
}
var mem = new DbgMemory(Address,
raw,
Debugger.TargetIs32Bit,
false, // TODO: actually determine endianness
Debugger);
mem.DefaultDisplayFormat = DefaultDisplayFormat;
mem.DefaultDisplayColumns = DefaultDisplayColumns;
NextAddressToDump = Address + (ulong)raw.Length;
NextDefaultFormat = DefaultDisplayFormat;
NextDefaultLengthInBytes = LengthInBytes;
NextDefaultNumColumns = DefaultDisplayColumns;
WriteObject(mem);
DbgProvider.SetAutoRepeatCommand(Util.Sprintf("{0}", MyInvocation.InvocationName));
} // end ProcessRecord()
