[PATCH v6 05/19] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64

Thu Dec 3 03:36:50 PST 2015

Catalin,

> Quick question: IIRC, earlier aarch64 gcc versions did not generate
> __ILP32__ when -mabi=ilp32, they only removed __LP64__. When did the
> change happen? Could we assume that all compiler versions used to
> generate ILP32 would define this?

The __ILP32__ define has been supported since 
> commit b01b37f5768911598640cf8a8c82beacb4200c13
> Author: yufeng <yufeng at 138bc75d-0d04-0410-961f-82ee72b054a4>
> Date:   Tue Jul 23 12:26:33 2013 +0000
> 
>     [AArch64, ILP32] 4/6 Define _ILP32 and __ILP32__.
>     
>     gcc/
>     
>         * config/aarch64/aarch64.h (TARGET_CPU_CPP_BUILTINS): Define _ILP32
>         and __ILP32__ when the ILP32 model is in use.
>     
>     
>     git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@201167 138bc75d-0d04-0410-961f-82ee72b054a4

Best regards,
Philipp.