This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: Add __ILP32 and __ILP32__ for X32 programming model
On Fri, Apr 13, 2012 at 9:40 AM, H. Peter Anvin <hpa@zytor.com> wrote:
> On 04/13/2012 09:18 AM, H.J. Lu wrote:
>> Hi,
>>
>> We need a reliable way to tell if we are compiling for x32 through
>> pre-defined preprocessor symbol. ?__LP64/__LP64__ aren't
>> specified by x86-64 psABI, although they have been added to
>> GCC 3.3. ?They can't be counted on to detect x32 since not x86-64
>> compilers define them. ? I updated x32 psABI:
>>
>> https://sites.google.com/site/x32abi/documents
>>
>> to define __ILP32 and __ILP32__ for X32 programming model. ?I
>> will submit a patch for GCC trunk and 4.7 branch.
>>
>
> Can we add __LP64__ to the psABI too?
>
X32 psABI has
__amd64 Defined for both LP64 and X32 programming models.
__amd64__ Defined for both LP64 and X32 programming models.
__x86_64 Defined for both LP64 and X32 programming models.
__x86_64__ Defined for both LP64 and X32 programming models.
__LP64 Defined for LP64 programming model.
__LP64__ Defined for LP64 programming model.
__ILP32 Defined for X32 programming model.
__ILP32__ Defined for X32 programming model.
--
H.J.