Date: Fri, 30 Jul 2010 10:53:17 +0200 From: Tijl Coosemans <tijl@coosemans.org> To: Nathan Whitehorn <nwhitehorn@freebsd.org> Cc: pluknet <pluknet@gmail.com>, freebsd-arch@freebsd.org Subject: Re: Support for cc -m32 Message-ID: <201007301053.27407.tijl@coosemans.org> In-Reply-To: <4C520044.5020002@freebsd.org> References: <201007291718.12687.tijl@coosemans.org> <4C520044.5020002@freebsd.org>
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--nextPart2641494.0OStBKXvGs Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Friday 30 July 2010 00:27:16 Nathan Whitehorn wrote: > On 07/29/10 17:18, Tijl Coosemans wrote: >> 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. >> >> With these patches something like "cc -m32 -o test test.c -pthread -lm" >> generates a program that runs on FreeBSD/i386. >> >> 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 >> >> *cc-m32-1.diff* : Let ld and cc find 32 bit libraries. > > Why not use the GCC multilib code for what patch 1 does? There is > already code in cc_tools/Makefile to handle this for powerpc64 (where > cc -m32 already works). Thanks, it's indeed better to specify this per architecture so I've updated the patch. It changes the output of -print-search-dirs though. With the previous patch "cc -m32 -print-search-dirs" printed: install: /usr/libexec/ programs: =/usr/bin/:/usr/bin/:/usr/libexec/:/usr/libexec/:/usr/libexec/ libraries: =/usr/lib32/:/usr/lib32/ And now it prints: install: /usr/libexec/ programs: =/usr/bin/:/usr/bin/:/usr/libexec/:/usr/libexec/:/usr/libexec/ libraries: =/usr/lib/32/:/usr/lib/../lib32/:/usr/lib/:/usr/lib/ That works, but it's not entirely correct. --nextPart2641494.0OStBKXvGs 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) iF4EABEIAAYFAkxSkwcACgkQfoCS2CCgtisPOAD/QduCN05QUX07YjqhZfH3FTKc tCUmX/svoR98579BkDIA+wbjmTP5n5LnT7E3B6JktpYe9ByYjB8nL2rhBwH4s5SY =SAB4 -----END PGP SIGNATURE----- --nextPart2641494.0OStBKXvGs--
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