On Wed, Apr 11, 2012 at 06:19:38AM -0600, Jeff Law wrote: >On 04/10/2012 04:42 AM, Steve McIntyre wrote: >>It's one of the things we're trying to achieve with multi-arch. We can >>support mixed-ABI, mixed-OS, mixed-architecture environments cleanly >>on one system, using a consistent set of packages for all. Setting up >>a cross-compilation environment suddenly becomes easy - install the >>cross-compiler and the libs for the target platform straight from a >>normal Debian mirror as binary packages. >> >> >>See http://wiki.debian.org/Multiarch/TheCaseForMultiarch for more >>rationale. >I've read it and still don't see the benefit, particularly as it >relates to mixed instruction sets. Or more precisely, I don't see >the value in supporting mixed instruction sets. Once you drop the >mixed instruction set argument I think the whole argument for >embedding the target triplet into the dynamic linker pathname falls >apart.
We see a value in supporting mixed instruction sets for two cases: emulation and cross-building. If you don't want or care so much about those, then fine - that's your call in your environment. They're both cases that Debian/Ubuntu would like to do a much better job of supporting in future, using existing packages instead of having to do so much special-casing all over. I hope that you (plural) can understand/accept that? >>We have to agree on a standard path if we're ever going to have >>working cross-distro binaries, and that's increasingly important to us >>in the ARM world. By all means ignore the multi-arch route that the >>Debian world is following, but please accept our reasoning for the >>linker location. >But the entire reason behind the need to embed the triplet into the >dynamic linker's path is the debian multi-arch stuff AFAICT. I think >that's what many folks are complaining about. > >I realize the goal here is to allow a single binary to run on >multiple systems and I think that's a worthy goal. Cool. :-) Cheers, -- Steve McIntyre steve.mcint...@linaro.org <http://www.linaro.org/> Linaro.org | Open source software for ARM SoCs _______________________________________________ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
