Date: Sat, 7 Aug 2010 11:37:38 +0200 From: Tijl Coosemans <tijl@coosemans.org> To: "M. Warner Losh" <imp@bsdimp.com> Cc: pluknet@gmail.com, freebsd-arch@freebsd.org Subject: Re: Support for cc -m32 Message-ID: <201008071137.45543.tijl@coosemans.org> In-Reply-To: <20100806.170953.119882392252204233.imp@bsdimp.com> References: <201007291718.12687.tijl@coosemans.org> <20100806.170953.119882392252204233.imp@bsdimp.com>
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--nextPart2715759.BhTqe3yHZp Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable On Saturday 07 August 2010 01:09:53 M. Warner Losh wrote: > In message: <201007291718.12687.tijl@coosemans.org> > Tijl Coosemans <tijl@coosemans.org> writes: > : I've put the initial version of some patches online to support cross > : compilation of 32 bit binaries on amd64. It's modelled after how NetBSD > : does this. > :=20 > : With these patches something like "cc -m32 -o test test.c -pthread -lm" > : generates a program that runs on FreeBSD/i386. > :=20 > : http://people.freebsd.org/~tijl/cc-m32-1.diff > : http://people.freebsd.org/~tijl/cc-m32-2.diff > : http://people.freebsd.org/~tijl/cc-m32-3.diff > :=20 > : *cc-m32-1.diff* : Let ld and cc find 32 bit libraries. > :=20 > : *cc-m32-2.diff* : Install i386 headers on amd64. > :=20 > : With this patch headers for a particular $arch are always installed > : under /usr/include/$arch and /usr/include/machine becomes a symlink. >=20 > This patch is wrong. /usr/include/machine is for > sys/$MACHINE/include, not for sys/$MACHINE_ARCH/include. These can > (and will) be different. Today in the pc98/i386 case, but in the > future in the mipsel/mips, mipseb/mips and armeb/arm cases. Could you clarify this somewhat? I think the patch already does that. It installs headers for ${MACHINE} under /usr/include/${MACHINE}, headers for ${MACHINE_ARCH} (when different from ${MACHINE}) under /usr/include/${MACHINE_ARCH} and symlinks /usr/include/machine to /usr/include/${MACHINE}. On amd64 it also installs i386 headers under /usr/include/i386. --nextPart2715759.BhTqe3yHZp Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.15 (FreeBSD) iF4EABEIAAYFAkxdKWkACgkQfoCS2CCgtitOrwD6AoEyu+6Eb1eWpqki1CHcM/xE lkhEOtRu7oBZjDt3SX4A/RnnGt6taO7wYFXZvjfheO7z+pIKi2dPGTnZEyYA+P7g =1NOz -----END PGP SIGNATURE----- --nextPart2715759.BhTqe3yHZp--
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