bool
RegisterContextMach_i386::WriteRegisterValue (uint32_t reg, const Scalar &value)
{
int set = GetSetForNativeRegNum (reg);
if (set == -1)
return false;
if (ReadRegisterSet(set, false) != KERN_SUCCESS)
return false;
switch (reg)
{
case gpr_eax:
case gpr_ebx:
case gpr_ecx:
case gpr_edx:
case gpr_edi:
case gpr_esi:
case gpr_ebp:
case gpr_esp:
case gpr_ss:
case gpr_eflags:
case gpr_eip:
case gpr_cs:
case gpr_ds:
case gpr_es:
case gpr_fs:
case gpr_gs:
(&gpr.eax)[reg - gpr_eax] = value.UInt(0);
break;
case fpu_fcw:
fpu.fcw = value.UInt(0);
break;
case fpu_fsw:
fpu.fsw = value.UInt(0);
break;
case fpu_ftw:
fpu.ftw = value.UInt(0);
break;
case fpu_fop:
fpu.fop = value.UInt(0);
break;
case fpu_ip:
fpu.ip = value.UInt(0);
break;
case fpu_cs:
fpu.cs = value.UInt(0);
break;
case fpu_dp:
fpu.dp = value.UInt(0);
break;
case fpu_ds:
fpu.ds = value.UInt(0);
break;
case fpu_mxcsr:
fpu.mxcsr = value.UInt(0);
break;
case fpu_mxcsrmask:
fpu.mxcsrmask = value.UInt(0);
break;
case fpu_stmm0:
case fpu_stmm1:
case fpu_stmm2:
case fpu_stmm3:
case fpu_stmm4:
case fpu_stmm5:
case fpu_stmm6:
case fpu_stmm7:
// These values don't fit into scalar types, RegisterContext::ReadRegisterBytes()
// must be used for these registers
//::memcpy (fpu.stmm[reg - fpu_stmm0].bytes, reg_value.value.vector.uint8, 10);
return false;
case fpu_xmm0:
case fpu_xmm1:
case fpu_xmm2:
case fpu_xmm3:
case fpu_xmm4:
case fpu_xmm5:
case fpu_xmm6:
case fpu_xmm7:
// These values don't fit into scalar types, RegisterContext::ReadRegisterBytes()
// must be used for these registers
//::memcpy (fpu.xmm[reg - fpu_xmm0].bytes, reg_value.value.vector.uint8, 16);
return false;
case exc_trapno:
exc.trapno = value.UInt(0);
break;
case exc_err:
exc.err = value.UInt(0);
break;
case exc_faultvaddr:
exc.faultvaddr = value.UInt(0);
break;
default:
return false;
}
return WriteRegisterSet(set) == KERN_SUCCESS;
}
bool
CompilerType::SetValueFromScalar (const Scalar &value, Stream &strm)
{
if (!IsValid())
return false;
// Aggregate types don't have scalar values
if (!IsAggregateType ())
{
strm.GetFlags().Set(Stream::eBinary);
uint64_t count = 0;
lldb::Encoding encoding = GetEncoding (count);
if (encoding == lldb::eEncodingInvalid || count != 1)
return false;
const uint64_t bit_width = GetBitSize(nullptr);
// This function doesn't currently handle non-byte aligned assignments
if ((bit_width % 8) != 0)
return false;
const uint64_t byte_size = (bit_width + 7 ) / 8;
switch (encoding)
{
case lldb::eEncodingInvalid:
break;
case lldb::eEncodingVector:
break;
case lldb::eEncodingUint:
switch (byte_size)
{
case 1: strm.PutHex8(value.UInt()); return true;
case 2: strm.PutHex16(value.UInt()); return true;
case 4: strm.PutHex32(value.UInt()); return true;
case 8: strm.PutHex64(value.ULongLong()); return true;
default:
break;
}
break;
case lldb::eEncodingSint:
switch (byte_size)
{
case 1: strm.PutHex8(value.SInt()); return true;
case 2: strm.PutHex16(value.SInt()); return true;
case 4: strm.PutHex32(value.SInt()); return true;
case 8: strm.PutHex64(value.SLongLong()); return true;
default:
break;
}
break;
case lldb::eEncodingIEEE754:
if (byte_size <= sizeof(long double))
{
if (byte_size == sizeof(float))
{
strm.PutFloat(value.Float());
return true;
}
else
if (byte_size == sizeof(double))
{
strm.PutDouble(value.Double());
return true;
}
else
if (byte_size == sizeof(long double))
{
strm.PutDouble(value.LongDouble());
return true;
}
}
break;
}
}
return false;
}