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Add __ILP32 and __ILP32__ for X32 programming model
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: x32-abi at googlegroups dot com, GCC Development <gcc at gcc dot gnu dot org>, GNU C Library <libc-alpha at sourceware dot org>
- Date: Fri, 13 Apr 2012 09:18:32 -0700
- Subject: Add __ILP32 and __ILP32__ for X32 programming model
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.
Thanks.
--
H.J.