bool
RegisterContextPOSIXProcessMonitor_x86_64::ReadRegister(const RegisterInfo *reg_info, RegisterValue &value)
{
if (!reg_info)
return false;
const uint32_t reg = reg_info->kinds[eRegisterKindLLDB];
if (IsFPR(reg, GetFPRType()))
{
if (!ReadFPR())
return false;
}
else
{
bool success = ReadRegister(reg, value);
// If an i386 register should be parsed from an x86_64 register...
if (success && reg >= k_first_i386 && reg <= k_last_i386)
if (value.GetByteSize() > reg_info->byte_size)
value.SetType(reg_info); // ...use the type specified by reg_info rather than the uint64_t default
return success;
}
if (reg_info->encoding == eEncodingVector)
{
ByteOrder byte_order = GetByteOrder();
if (byte_order != ByteOrder::eByteOrderInvalid)
{
if (reg >= fpu_stmm0 && reg <= fpu_stmm7)
value.SetBytes(m_fpr.xstate.fxsave.stmm[reg - fpu_stmm0].bytes, reg_info->byte_size, byte_order);
if (reg >= fpu_xmm0 && reg <= fpu_xmm15)
value.SetBytes(m_fpr.xstate.fxsave.xmm[reg - fpu_xmm0].bytes, reg_info->byte_size, byte_order);
if (reg >= fpu_ymm0 && reg <= fpu_ymm15)
{
// Concatenate ymm using the register halves in xmm.bytes and ymmh.bytes
if (GetFPRType() == eXSAVE && CopyXSTATEtoYMM(reg, byte_order))
value.SetBytes(m_ymm_set.ymm[reg - fpu_ymm0].bytes, reg_info->byte_size, byte_order);
else
return false;
}
return value.GetType() == RegisterValue::eTypeBytes;
}
return false;
}
// Note that lldb uses slightly different naming conventions from sys/user.h
switch (reg)
{
default:
return false;
case fpu_dp:
value = m_fpr.xstate.fxsave.dp;
break;
case fpu_fcw:
value = m_fpr.xstate.fxsave.fcw;
break;
case fpu_fsw:
value = m_fpr.xstate.fxsave.fsw;
break;
case fpu_ip:
value = m_fpr.xstate.fxsave.ip;
break;
case fpu_fop:
value = m_fpr.xstate.fxsave.fop;
break;
case fpu_ftw:
value = m_fpr.xstate.fxsave.ftw;
break;
case fpu_mxcsr:
value = m_fpr.xstate.fxsave.mxcsr;
break;
case fpu_mxcsrmask:
value = m_fpr.xstate.fxsave.mxcsrmask;
break;
}
return true;
}
