26 Jun 2012 23:22
Re: [x86-64 psABI] RFC: Extend x86-64 psABI to support x32
H.J. Lu <hjl.tools <at> gmail.com>
2012-06-26 21:22:45 GMT
2012-06-26 21:22:45 GMT
On Tue, Jun 26, 2012 at 2:11 PM, Mark Butler <butlerm <at> middle.net> wrote: > >> x32 is designed to replace ia32 where long is 32-bit, not x86-64. >> > I understand, but wouldn't L64P32 be much better in the long run? In terms > of compatibility with LP64, and an LP64 kernel in particular? The structure > layouts of any structure that did not contain pointers would be identical, > for example. struct timeval, struct timespec, struct stat, and on and on... Linux/x32 uses the same layout for struct timeval, struct timespec, struct stat, as Linux/x86-64. It is orthogonal to L64 vs L32. -- -- H.J.
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