[Bug 1808563] Re: Listing the contents of / lists QEMU_LD_PREFIX instead

[Thomas Huth]

The QEMU project is currently considering to move its bug tracking to another 
system. For this we need to know which bugs are still valid and which could be 
closed already. Thus we are setting older bugs to "Incomplete" now.
If you still think this bug report here is valid, then please switch the state 
back to "New" within the next 60 days, otherwise this report will be marked as 
"Expired". Or mark it as "Fix Released" if the problem has been solved with a 
newer version of QEMU already. Thank you and sorry for the inconvenience.

** Changed in: qemu
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1808563

Title:
  Listing the contents of / lists QEMU_LD_PREFIX instead

Status in QEMU:
  Incomplete

Bug description:
  Seeing this in qemu-user version 3.1.0

  Demo:
  $ QEMU_LD_PREFIX=$(pwd)/usr/armv7a-cros-linux-gnueabi ../run/qemu-arm 
/tmp/coreutils --coreutils-prog=ls / 
  etc  lib  usr
  $ ls /
  boot  etc   lib     lib64   lost+found  mnt    root  sbin  sys  usr
  bin   dev   export  home    lib32       net    proc  run   tmp  var
  $ ls usr/armv7a-cros-linux-gnueabi
  etc  lib  usr

  In strace, the openat for "/" is remapped to the directory specified in 
QEMU_LD_PREFIX:
  [pid  5302] openat(AT_FDCWD, "/tmp/qemu/usr/armv7a-cros-linux-gnueabi", 
O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 3

  As an aside, if I change the code to do chdir("/"); opendir("."); it
  works fine.

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