[x86-64 psABI] RFC: Extend x86-64 psABI to support x32

H. Peter Anvin hpa@zytor.com
Mon May 14 17:34:00 GMT 2012

On 05/14/2012 10:31 AM, H.J. Lu wrote:
> Hi,
> Support for the x32 psABI:
> http://sites.google.com/site/x32abi/
> is added in Linux kernel 3.4-rc1.  X32 uses the ILP32 model for x86-64
> instruction set with size of long and pointers == 4 bytes.  X32 is
> already supported in GCC 4.7.0 and binutils 2.22.  I am now working
> to integrate x32 support into GLIBC 2.16 and GDB 7.5   Here is a
> patch to extend x86-64 psABI for x32.  Any comments?

As a minor nitpick, I have always used x32 with a lower case x.  The
capital X32 looks odd to me.


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