static lldb::Format
GetItemFormatForFormat (lldb::Format format,
CompilerType element_type)
{
switch (format)
{
case lldb::eFormatVectorOfChar:
return lldb::eFormatChar;
case lldb::eFormatVectorOfFloat32:
case lldb::eFormatVectorOfFloat64:
return lldb::eFormatFloat;
case lldb::eFormatVectorOfSInt16:
case lldb::eFormatVectorOfSInt32:
case lldb::eFormatVectorOfSInt64:
case lldb::eFormatVectorOfSInt8:
return lldb::eFormatDecimal;
case lldb::eFormatVectorOfUInt128:
case lldb::eFormatVectorOfUInt16:
case lldb::eFormatVectorOfUInt32:
case lldb::eFormatVectorOfUInt64:
case lldb::eFormatVectorOfUInt8:
return lldb::eFormatUnsigned;
case lldb::eFormatBinary:
case lldb::eFormatComplexInteger:
case lldb::eFormatDecimal:
case lldb::eFormatEnum:
case lldb::eFormatInstruction:
case lldb::eFormatOSType:
case lldb::eFormatVoid:
return eFormatHex;
case lldb::eFormatDefault:
{
// special case the (default, char) combination to actually display as an integer value
// most often, you won't want to see the ASCII characters... (and if you do, eFormatChar is a keystroke away)
bool is_char = element_type.IsCharType();
bool is_signed = false;
element_type.IsIntegerType(is_signed);
return is_char ? (is_signed ? lldb::eFormatDecimal : eFormatHex) : format;
}
break;
default:
return format;
}
}
ValueObjectSP
ABISysV_mips::GetReturnValueObjectImpl (Thread &thread, CompilerType &return_clang_type) const
{
ValueObjectSP return_valobj_sp;
Value value;
if (!return_clang_type)
return return_valobj_sp;
ExecutionContext exe_ctx (thread.shared_from_this());
if (exe_ctx.GetTargetPtr() == NULL || exe_ctx.GetProcessPtr() == NULL)
return return_valobj_sp;
value.SetCompilerType(return_clang_type);
RegisterContext *reg_ctx = thread.GetRegisterContext().get();
if (!reg_ctx)
return return_valobj_sp;
bool is_signed = false;
bool is_complex = false;
uint32_t count = 0;
// In MIPS register "r2" (v0) holds the integer function return values
const RegisterInfo *r2_reg_info = reg_ctx->GetRegisterInfoByName("r2", 0);
size_t bit_width = return_clang_type.GetBitSize(&thread);
if (return_clang_type.IsIntegerType (is_signed))
{
switch (bit_width)
{
default:
return return_valobj_sp;
case 64:
{
const RegisterInfo *r3_reg_info = reg_ctx->GetRegisterInfoByName("r3", 0);
uint64_t raw_value;
raw_value = reg_ctx->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT32_MAX;
raw_value |= ((uint64_t)(reg_ctx->ReadRegisterAsUnsigned(r3_reg_info, 0) & UINT32_MAX)) << 32;
if (is_signed)
value.GetScalar() = (int64_t)raw_value;
else
value.GetScalar() = (uint64_t)raw_value;
}
break;
case 32:
if (is_signed)
value.GetScalar() = (int32_t)(reg_ctx->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT32_MAX);
else
value.GetScalar() = (uint32_t)(reg_ctx->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT32_MAX);
break;
case 16:
if (is_signed)
value.GetScalar() = (int16_t)(reg_ctx->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT16_MAX);
else
value.GetScalar() = (uint16_t)(reg_ctx->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT16_MAX);
break;
case 8:
if (is_signed)
value.GetScalar() = (int8_t)(reg_ctx->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT8_MAX);
else
value.GetScalar() = (uint8_t)(reg_ctx->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT8_MAX);
break;
}
}
else if (return_clang_type.IsPointerType ())
{
uint32_t ptr = thread.GetRegisterContext()->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT32_MAX;
value.GetScalar() = ptr;
}
else if (return_clang_type.IsAggregateType ())
{
// Structure/Vector is always passed in memory and pointer to that memory is passed in r2.
uint64_t mem_address = reg_ctx->ReadRegisterAsUnsigned(reg_ctx->GetRegisterInfoByName("r2", 0), 0);
// We have got the address. Create a memory object out of it
return_valobj_sp = ValueObjectMemory::Create (&thread,
"",
Address (mem_address, NULL),
return_clang_type);
return return_valobj_sp;
}
else if (return_clang_type.IsFloatingPointType (count, is_complex))
{
const RegisterInfo *f0_info = reg_ctx->GetRegisterInfoByName("f0", 0);
const RegisterInfo *f1_info = reg_ctx->GetRegisterInfoByName("f1", 0);
if (count == 1 && !is_complex)
{
switch (bit_width)
{
default:
return return_valobj_sp;
case 64:
{
static_assert(sizeof(double) == sizeof(uint64_t), "");
uint64_t raw_value;
raw_value = reg_ctx->ReadRegisterAsUnsigned(f0_info, 0) & UINT32_MAX;
raw_value |= ((uint64_t)(reg_ctx->ReadRegisterAsUnsigned(f1_info, 0) & UINT32_MAX)) << 32;
value.GetScalar() = *reinterpret_cast<double*>(&raw_value);
break;
}
case 32:
{
static_assert(sizeof(float) == sizeof(uint32_t), "");
uint32_t raw_value = reg_ctx->ReadRegisterAsUnsigned(f0_info, 0) & UINT32_MAX;
value.GetScalar() = *reinterpret_cast<float*>(&raw_value);
break;
}
}
}
else
{
// not handled yet
return return_valobj_sp;
}
}
else
{
// not handled yet
return return_valobj_sp;
}
// If we get here, we have a valid Value, so make our ValueObject out of it:
return_valobj_sp = ValueObjectConstResult::Create(thread.GetStackFrameAtIndex(0).get(),
value,
ConstString(""));
return return_valobj_sp;
}
ValueObjectSP
ABIMacOSX_i386::GetReturnValueObjectImpl (Thread &thread,
CompilerType &compiler_type) const
{
Value value;
ValueObjectSP return_valobj_sp;
if (!compiler_type)
return return_valobj_sp;
//value.SetContext (Value::eContextTypeClangType, compiler_type.GetOpaqueQualType());
value.SetCompilerType (compiler_type);
RegisterContext *reg_ctx = thread.GetRegisterContext().get();
if (!reg_ctx)
return return_valobj_sp;
bool is_signed;
if (compiler_type.IsIntegerType (is_signed))
{
size_t bit_width = compiler_type.GetBitSize(&thread);
unsigned eax_id = reg_ctx->GetRegisterInfoByName("eax", 0)->kinds[eRegisterKindLLDB];
unsigned edx_id = reg_ctx->GetRegisterInfoByName("edx", 0)->kinds[eRegisterKindLLDB];
switch (bit_width)
{
default:
case 128:
// Scalar can't hold 128-bit literals, so we don't handle this
return return_valobj_sp;
case 64:
uint64_t raw_value;
raw_value = thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xffffffff;
raw_value |= (thread.GetRegisterContext()->ReadRegisterAsUnsigned(edx_id, 0) & 0xffffffff) << 32;
if (is_signed)
value.GetScalar() = (int64_t)raw_value;
else
value.GetScalar() = (uint64_t)raw_value;
break;
case 32:
if (is_signed)
value.GetScalar() = (int32_t)(thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xffffffff);
else
value.GetScalar() = (uint32_t)(thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xffffffff);
break;
case 16:
if (is_signed)
value.GetScalar() = (int16_t)(thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xffff);
else
value.GetScalar() = (uint16_t)(thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xffff);
break;
case 8:
if (is_signed)
value.GetScalar() = (int8_t)(thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xff);
else
value.GetScalar() = (uint8_t)(thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xff);
break;
}
}
else if (compiler_type.IsPointerType ())
{
unsigned eax_id = reg_ctx->GetRegisterInfoByName("eax", 0)->kinds[eRegisterKindLLDB];
uint32_t ptr = thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xffffffff;
value.GetScalar() = ptr;
}
else
{
// not handled yet
return return_valobj_sp;
}
// If we get here, we have a valid Value, so make our ValueObject out of it:
return_valobj_sp = ValueObjectConstResult::Create(thread.GetStackFrameAtIndex(0).get(),
value,
ConstString(""));
return return_valobj_sp;
}
