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"frame variable" and "target variable" shouldn't allow us to get the address of bitfields. 

"frame variable" and "target variable" are trying to emulate the expression parser when doing things like:

(lldb) frame variable &my_struct.my_bitfield

And since the expression parser doesn't allow this, we shouldn't allow "frame variable" or "target variable" to succeed.

<rdar://problem/27208607> 

llvm-svn: 274703
This commit is contained in:
Greg Clayton 2016-07-06 23:16:24 +00:00
parent 5e4bd2e7c4
commit df62e731ea
1 changed files with 18 additions and 14 deletions
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32
lldb/source/Core/ValueObject.cpp
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@ -834,20 +834,20 @@ ValueObject::CreateChildAtIndex (size_t idx, bool synthetic_array_member, int32_
ExecutionContext exe_ctx (GetExecutionContextRef());
child_compiler_type = GetCompilerType().GetChildCompilerTypeAtIndex (&exe_ctx,
idx,
transparent_pointers,
omit_empty_base_classes,
ignore_array_bounds,
child_name_str,
child_byte_size,
child_byte_offset,
child_bitfield_bit_size,
child_bitfield_bit_offset,
child_is_base_class,
child_is_deref_of_parent,
this,
language_flags);
child_compiler_type = GetCompilerType().GetChildCompilerTypeAtIndex(&exe_ctx,
idx,
transparent_pointers,
omit_empty_base_classes,
ignore_array_bounds,
child_name_str,
child_byte_size,
child_byte_offset,
child_bitfield_bit_size,
child_bitfield_bit_offset,
child_is_base_class,
child_is_deref_of_parent,
this,
language_flags);
if (child_compiler_type)
{
if (synthetic_index)
@ -1789,6 +1789,10 @@ ValueObject::DumpPrintableRepresentation(Stream& s,
addr_t
ValueObject::GetAddressOf (bool scalar_is_load_address, AddressType *address_type)
{
// Can't take address of a bitfield
if (IsBitfield())
return LLDB_INVALID_ADDRESS;
if (!UpdateValueIfNeeded(false))
return LLDB_INVALID_ADDRESS;