Date: Tue, 22 Feb 2000 21:20:57 +0100 From: Andre Albsmeier <andre.albsmeier@mchp.siemens.de> To: Marcel Moolenaar <marcel@cup.hp.com> Cc: Andre Albsmeier <andre.albsmeier@mchp.siemens.de>, freebsd-emulation@FreeBSD.ORG Subject: Re: How to link a Linux program under FreeBSD ? Message-ID: <20000222212057.A46560@internal> In-Reply-To: <38B2DE7C.FEFE45@cup.hp.com>; from marcel@cup.hp.com on Tue, Feb 22, 2000 at 07:07:40PM %2B0000 References: <20000221214203.A72944@internal> <38B2D26B.8E280F5C@cup.hp.com> <20000222193545.A45196@internal> <38B2DE7C.FEFE45@cup.hp.com>
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On Tue, 22-Feb-2000 at 19:07:40 +0000, Marcel Moolenaar wrote: > Andre Albsmeier wrote: > > > > > Rule of thumb: From within a Linux shell you always pick up the linux > > > binaries and not the FreeBSD native ones. > > > > Yes, thanks for the hint. I have also been told that I can > > put /compat/linux/bin and /compat/linux/usr/bin first in my PATH. > > I tried it and it works as well. > > Beware! Having /compat/linux... first in your path can cause breakages > in your native environment. It basicly causes unwanted mixing of FreeBSD > and Linux binaries. The same applies to setting LD_LIBRARY_PATH to solve > shared library problems. Keep both environments seperate as much as > possible and don't depend on inter-environmental environment variables > :-) OK, I should have been more precise here: I have a script that calls the Absoft Fortran compiler. When compiling is done, the script calls cc -o ... I set PATH only in this script to /compat/linux/bin and /compat/linux/usr/bin, not in my working environment :-) > > > I assume that this works also for the libs and the crt1 stuff. > > No, the linux binaries happen to pick up the linux libraries first most > of the time. There are situations where a FreeBSD library is found first > (see below)... > > > I think, the only problem arises if, e.g. I specify some > > lib that doesn't exist under /compat/linux but under FreeBSD. > > In this case I assume that the FreeBSD lib is being used. > > Correct. Sometimes the search order used by ld(1) causes this as well. > In that case the Linux library can exist while the FreeBSD version is > used anyway... I see, thanks for the info. The best would be to have somekind of intelligent chroot when linux bins are running. The problem lies in implementing "intelligent" :-) Thanks again, -Andre > > -- > Marcel Moolenaar > mail: marcel@cup.hp.com / marcel@FreeBSD.org > tel: (408) 447-4222 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-emulation" in the body of the message
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