This is old clang
-------
Apple clang version 4.1 (tags/Apple/clang-421.11.66) (based on LLVM 3.1svn)
Target: x86_64-apple-darwin11.4.2
Thread model: posix
-------
Ok, I will do this temp workaround.
OvmfPkg, compiled with this clang works, if I exclude S3Save from its body ;)
Sergey
On 30.09.2014, at 16:34, Andrew Fish wrote:
>
> On Sep 30, 2014, at 5:13 AM, Sergey Isakov <[email protected]> wrote:
>
>> Hi sirs,
>> New problem
>> ------------
>> Building ...
>> /Users/sergey/src/edk2/MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveStateDxe.inf
>> [X64]
>> /Users/sergey/src/edk2/MdeModulePkg/Universal/Acpi/S3SaveStateDxe/S3SaveState.c:216:33:
>> error: second argument to 'va_arg' is of promotable type 'UINT16' (aka
>> 'unsigned short'); this va_arg has undefined behavior because arguments will
>> be promoted to 'int' [-Werror]
>> Segment = VA_ARG (Marker, UINT16);
>> ~~~~~~~~~~~~~~~~^~~~~~~
>> /Users/sergey/src/edk2/MdePkg/Include/Base.h:488:150: note: expanded from
>> macro 'VA_ARG'
>> #define VA_ARG(Marker, TYPE) ((sizeof (TYPE) < sizeof (UINTN)) ?
>> (TYPE)(__builtin_va_arg (Marker, UINTN)) : (TYPE)(__builtin_va_arg (Marker,
>> TYPE)))
>>
>> ^
>
> Sergey,
>
> What version of clang are you using? Can you try a newer version?
>
> This is a diagnostic error in clang that has been fixed. The macro ensures
> the promotion to ‘int’ so it should not warn.
>
> You can change UINT16 in VA_ARG() to UINTN as a temp work around.
>
> Thanks,
>
> Andrew Fish
>
>
>>
>> ------------
>> The same in lines 244, 276 and 504.
>> Please consider.
>>
>> Wishes,
>> Sergey
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