2012/10/24 Jonathan Nieder <jrnie...@gmail.com>: > Thanks. Indeed, ideally fakechroot's execve should look up the > interpreter filename from the ELF .interp section, map it according to > the faked chroot, and set argv[0]. The hard part is the ELF parsing.
It doesn't work correctly: 1. The glibc dynamic loader can't change argv[0] to other value than the file name. It means that some apps are broken, ie. busybox. See https://sourceware.org/bugzilla/show_bug.cgi?id=16124 2. Using dynamic loader directly from command line is possible but the loader is less stable and coredumps sometimes. You can test it already, eg. calling FAKECHROOT_ELFLOADER=/lib64/ld-linux-x86-64.so.2 from test directory of fakechroot source. You should expect that debootstrap environment can be created but calling debian/rules or even ./configure in such environment fails. Perhaps there is another possibility: to change .interp section for every binary file in fake chroot environment: off-line or even on-the-fly. I think about similar to chrpath tool which can change another ELF section. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
