Re: [Haskell-cafe] Re: Re: Hackage on Linux
On 28/08/10 02:15, Ivan Lazar Miljenovic wrote: On 28 August 2010 11:09, Brandon S Allbery KF8NH allb...@ece.cmu.edu wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 8/27/10 05:58 , Simon Farnsworth wrote: If you don't mind, I'd like a proper reference for this; looking at the Linux kernel documentation as you suggest tells me that the kernelspace to userspace ABI is supposed to be 100% stable, such that I can take all the binaries (including shared libraries) from an i386 Linux 2.0 system, and run them in a chroot on my x86-64 Linux 2.6.35 system. Maybe it's supposed to be, but even with more recent stuff (like, say, binary GHC releases --- which use glibc shared even if Haskell libs aren't) I quite often see programs fail to run because the kernel changed something and the kernel/userspace interface changed as a result. A written policy is worthless if it isn't followed. Well, I have no need to recompile glibc and packages that depend upon it every time I update my kernel... So maybe glibc changes, but not the kernel AFAICT. I've been following this part of the discussion with some interest. Mainly because I've been a Linux user since kernel version 1.2, and I've *never* had any of the problems people mention here. So I'm wondering, what are you doing to your systems? /M -- Magnus Therning(OpenPGP: 0xAB4DFBA4) magnus＠therning．org Jabber: magnus＠therning．org http://therning.org/magnus identi.ca|twitter: magthe signature.asc Description: OpenPGP digital signature ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Re: Re: Hackage on Linux
Brandon S Allbery KF8NH wrote: On 8/26/10 10:23 , David Leimbach wrote: Go, for example, has no shared libraries, and the runtime fits in every binary. It does not even depend on libc. Go binaries call the system call interface of the kernel, and the net result is that I get to test my go code, deploy it, and not worry about the state of deployed go environments quite so much as I do in the presence of shared libraries. Um. That's a really good way to have all your programs stop working when the Linux kernel interface changes yet again (ABIs? We don't need no steenking ABIs! --- see in /usr/src/linux/Documentation). Solaris is similar; the only approved interface is via libc and you must link to it shared if you want your program to work across versions/releases. If you don't mind, I'd like a proper reference for this; looking at the Linux kernel documentation as you suggest tells me that the kernelspace to userspace ABI is supposed to be 100% stable, such that I can take all the binaries (including shared libraries) from an i386 Linux 2.0 system, and run them in a chroot on my x86-64 Linux 2.6.35 system. It's the in-kernel ABI (for loadable kernel modules and the like) that's not guaranteed to remain stable. -- Simon ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Re: Re: Hackage on Linux
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 8/27/10 05:58 , Simon Farnsworth wrote: If you don't mind, I'd like a proper reference for this; looking at the Linux kernel documentation as you suggest tells me that the kernelspace to userspace ABI is supposed to be 100% stable, such that I can take all the binaries (including shared libraries) from an i386 Linux 2.0 system, and run them in a chroot on my x86-64 Linux 2.6.35 system. Maybe it's supposed to be, but even with more recent stuff (like, say, binary GHC releases --- which use glibc shared even if Haskell libs aren't) I quite often see programs fail to run because the kernel changed something and the kernel/userspace interface changed as a result. A written policy is worthless if it isn't followed. - -- brandon s. allbery [linux,solaris,freebsd,perl] allb...@kf8nh.com system administrator [openafs,heimdal,too many hats] allb...@ece.cmu.edu electrical and computer engineering, carnegie mellon university KF8NH -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.10 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkx4YbcACgkQIn7hlCsL25UXhACgrteurjouZAdrdj4+yzsXGLJd fOoAn0L73V7CYA5yfsiLfaBLsJLVI7l+ =d6UD -END PGP SIGNATURE- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Re: Re: Hackage on Linux
On 28 August 2010 11:09, Brandon S Allbery KF8NH allb...@ece.cmu.edu wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 8/27/10 05:58 , Simon Farnsworth wrote: If you don't mind, I'd like a proper reference for this; looking at the Linux kernel documentation as you suggest tells me that the kernelspace to userspace ABI is supposed to be 100% stable, such that I can take all the binaries (including shared libraries) from an i386 Linux 2.0 system, and run them in a chroot on my x86-64 Linux 2.6.35 system. Maybe it's supposed to be, but even with more recent stuff (like, say, binary GHC releases --- which use glibc shared even if Haskell libs aren't) I quite often see programs fail to run because the kernel changed something and the kernel/userspace interface changed as a result. A written policy is worthless if it isn't followed. Well, I have no need to recompile glibc and packages that depend upon it every time I update my kernel... So maybe glibc changes, but not the kernel AFAICT. -- Ivan Lazar Miljenovic ivan.miljeno...@gmail.com IvanMiljenovic.wordpress.com ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
