[Asm] 纯文本查看 复制代码 void CPUDisassembly::binaryFillNopsSlot()
{
HexEditDialog hexEdit(this);
dsint selStart = getSelectionStart();
dsint selSize = getSelectionEnd() - selStart + 1;
WordEditDialog mLineEdit(this);
mLineEdit.setup(tr("Size"), selSize, sizeof(duint));
if(mLineEdit.exec() != QDialog::Accepted || !mLineEdit.getVal())
return;
selSize = mLineEdit.getVal();
byte_t* data = new byte_t[selSize];
mMemPage->read(data, selStart, selSize);
hexEdit.mHexEdit->setData(QByteArray((const char*)data, selSize));
delete [] data;
hexEdit.mHexEdit->fill(0, QString("90"));
QByteArray patched(hexEdit.mHexEdit->data());
mMemPage->write(patched, selStart, patched.size());
GuiUpdateAllViews();
}
源码中是这样的：
[C++] 纯文本查看 复制代码
bool assembleat(duint addr, const char* instruction, int* size, char* error, bool fillnop)
{
int destSize = 0;
Memory<unsigned char*> dest(16 * sizeof(unsigned char), "AssembleBuffer");
unsigned char* newbuffer = nullptr;
if(!assemble(addr, dest(), 16, &destSize, instruction, error))
{
if(destSize > 16)
{
dest.realloc(destSize);
if(!assemble(addr, dest(), destSize, &destSize, instruction, error))
return false;
}
else
return false;
}
//calculate the number of NOPs to insert
int origLen = disasmgetsize(addr);
while(origLen < destSize)
origLen += disasmgetsize(addr + origLen);
int nopsize = origLen - destSize;
unsigned char nops[16];
memset(nops, 0x90, sizeof(nops));
if(size)
*size = destSize;
// Check if the instruction doesn't set IP to non-executable memory
if(!isInstructionPointingToExMemory(addr, dest()))
{
String Title;
String Text;
Title = GuiTranslateText(QT_TRANSLATE_NOOP("DBG", "Non-executable memory region"));
Text = GuiTranslateText(QT_TRANSLATE_NOOP("DBG", "Assembled branch does not point to an executable memory region!"));
GuiDisplayWarning(Title.c_str(), Text.c_str());
}
bool ret = MemPatch(addr, dest(), destSize);
if(ret)
{
if(fillnop && nopsize)
{
if(size)
*size += nopsize;
// Ignored if the memory patch for NOPs fail (although it should not)
MemPatch(addr + destSize, nops, nopsize);
}
// Update GUI if any patching succeeded
GuiUpdatePatches();
}
else
{
// Tell the user writing is blocked
strcpy_s(error, MAX_ERROR_SIZE, GuiTranslateText(QT_TRANSLATE_NOOP("DBG", "Error while writing process memory")));
}
return ret;
} | 
发表于 2021-12-22 21:43
|
发表于 2021-12-22 22:07
