正如documentation 所说:
这不能用于检索大小大于 ADDRINT 的寄存器的值(例如 x87 FPU/XMM/YMM/ZMM/opmask)
您有两种选择:
我猜第一个选项更有意义,所以它应该类似于下面的代码:
警告:以下代码尚未经过测试/编译...
仪器:
const unsigned int opnd_count = INS_OperandCount(ins);
for(unsigned int i=0; i < opnd_count;i++)
{
if (INS_OperandIsReg(ins,i))
{
REG r = INS_OperandReg(ins,i);
if ((r))
{
INS_InsertCall(ins, IPOINT_AFTER, (AFUNPTR)xmm_arg,
IARG_REG_CONST_REFERENCE, r,
IARG_REG_REFERENCE, r, // you might remove this one if you don't modify the reg.
IARG_UINT32, i,
IARG_UINT32, (r-REG_XMM_BASE), // note: REG_XMM_BASE = REG_XMM0
IARG_END);
}
}
}
分析:
// regConstRef: const reference on the register
// regRef: reference on the register
// opnd_indx: operand index (0 for the 1st inst. op.; 1 for the 2nd inst. op.)
// regno: register number: 0 = XMM0; 1 = XMM1, etc.
VOID xmm_arg(PIN_REGISTER* regConstRef, PIN_REGISTER* regRef, UINT32 opnd_indx, UINT32 regno)
{
// just "dump" the register
std::cout << "XMM" << regno << " operand_index: " << opnd_indx << " ";
for(unsigned int i=0;i< MAX_DWORDS_PER_PIN_REG;i++)
{
std::cout << std::setw(10) << regConstRef->dword[i] << " ";
}
std::cout << std::endl;
}