On 12 Mar 2010, at 21:36, Carlos A. M. dos Santos wrote:

On Thu, Mar 11, 2010 at 11:49 AM, Nathan Whitehorn
<nwhiteh...@freebsd.org> wrote:
Author: nwhitehorn
Date: Thu Mar 11 14:49:06 2010
New Revision: 205014
URL: http://svn.freebsd.org/changeset/base/205014

Log:
Provide groundwork for 32-bit binary compatibility on non-x86 platforms, for upcoming 64-bit PowerPC and MIPS support. This renames the COMPAT_IA32 option to COMPAT_FREEBSD32, removes some IA32-specific code from MI parts of the kernel and enhances the freebsd32 compatibility code to support
 big-endian platforms.

COMPAT_FREEBSD32 is an unfortunate choice. It can be easily
interpreted as "compatible with FreeBSD 3.2". Something like
"COMPAT_32BIT" would be more meaningful.

There's a lengthy discussion about this on another mailing list.

This is unlikely to be changed and emailing the committer who provided valuable time on this code wastes his time and everyone else's.

--
Rui Paulo

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