Hi, I'm actually running arm64, not amd64 ;-)
Le 28 août 2017 23:25:56 GMT+02:00, Reco <recovery...@gmail.com> a écrit : > Hi. > >On Mon, 28 Aug 2017 22:50:17 +0200 >Adam Cécile <adam.cec...@hitec.lu> wrote: > >> Hello, >> >> >> I'm trying to set up armhf on arm64 stretch but it does not work: >> >> >> file /tmp/bash/bin/bash >> >> /tmp/bash/bin/bash: ELF 32-bit LSB executable, ARM, EABI5 version 1 >> (SYSV), dynamically linked, interpreter /lib/ld-linux-armhf.so.3, for > >> GNU/Linux 3.2.0, >BuildID[sha1]=e3aedef3dd05738b73e7756ddb9be88dd0f9a8ce, >> stripped >> >> >> ldd /tmp/bash/bin/bash >> >> not a dynamic executable > >That's supposed to happen. Try 'objdump -p' instead. > > >> /tmp/bash/bin/bash >> >> -bash: /tmp/bash/bin/bash: cannot execute binary file: Exec format >error > >And that is supposed to happen too. > > >> Any idea about what's wrong ? Everything looks ok to me. Is it >possible >> to be kernel related ? > >In a way that's kernel related. > >What multiarch is - it's an ability to co-install libraries from >different architectures (for cross-compilation usually). >What multiarch is not - it's not an ability to use foreign architecture >libraries to run foreign architecture binaries. > >The reason being - an executable binary contains CPU instructions that >are suited to CPU of designated architecture only. In your example it's >armv5. Your CPU is amd64 and its unable to interpret those - it can >only >understand i386 and amd64 instruction sets. > >Due to this Linux kernel (any reasonable OS kernel that I dealt with, >in >fact) refuses to acknowledge that foreign architecture binaries could >be >executed at all. Hence 'Exec format error' from the direct execution >and 'not a dynamic executable' from ldd (which is special form of >binary execution anyway). > > >There's a way around this limitation, and it involves CPU instruction >translation via qemu-user. Assuming that you have 'qemu-user-static' >installed, this should work: > >qemu-arm-static /tmp/bash/bin/bash > >Reco -- Envoyé de mon appareil Android avec Courriel K-9 Mail. Veuillez excuser ma brièveté.
