[cfe-dev] clang/Darwin/x86-64 status on the LLVM test & gcc "compat" test suites
Fariborz Jahanian
fjahanian at apple.com
Wed Feb 11 10:25:38 PST 2009
On Feb 11, 2009, at 10:00 AM, Jean-Daniel Dupas wrote:
>
> Le 11 févr. 09 à 18:12, Anders Carlsson a écrit :
>
>>
>> 11 feb 2009 kl. 09.02 skrev Fariborz Jahanian:
>>
>>> They are the same, except for the 64bit-ness of types. Here it is:
>>>
>>> struct __builtin_CFString {
>>> const int *isa; (will point at
>>> __CFConstantStringClassReference)
>>> int flags;
>>> const char *str;
>>> long length;
>>> };
>>>
>>> - Fariborz
>>
>> I did some testing of constant CFString/NSString layout in 64-bit and
>> could not find any issues.
>>
>> Anders
>
> OK, Look like auto padding from the compiler give the good struct,
> but the CF declaration is not the same for 32 and 64 bits:
>
> typedef struct __CFRuntimeBase {
> uintptr_t _cfisa;
> uint8_t _cfinfo[4];
> #if __LP64__
> uint32_t _rc;
> #endif
> } CFRuntimeBase;
Where do you get this declaration? I don;t see it in clang, /usr/
include, (or gcc) source tree?
- fariborz
>
>
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