[Bug 1531352] Re: QEMU_LD_PREFIX not load correct library order in the PATH

[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/1531352

Title:
  QEMU_LD_PREFIX not load correct library order in the PATH

Status in QEMU:
  Incomplete

Bug description:
  run qemu with QEMU_LD_PREFIX argument will not load correct library order in 
the PATH.
  How to reproduce this bug:
  These command will download the library of other architectures
  wget 
https://raw.githubusercontent.com/BinaryAnalysisPlatform/qira/master/fetchlibs.sh
  bash fetchlibs.sh
  This is 32bit binary file,
  wget http://train.cs.nctu.edu.tw/files/magic
  chmod +x ./magic
  qemu-i386 -L /home/apple/libs/i386 /home/apple/magic
  This is work fine.
  But after you install gcc-multilib, it failed.
  sudo apt-get install gcc-multilib
  qemu-i386 -L /home/apple/libs/i386 /home/apple/magic
  The following is the error message
  /home/apple/magic: 0���: ̀Í�: D$(�$: Error 18446744073549536926
  Because the order of dynamic linker search the shared library is wrong.
  When your system has /lib32 directory, its priority is higher than the 
QEMU_LD_PREFIX.
  If the system not loaded correspond with the dynamic linker, it will crash.
  Code flow:
  linux-user/main.c:
    call loader_exec
  linuxload.c:
    call load_elf_binary
  elfload.c:
    in load_elf_binary function
    dynamic loader will be elf_interpreter
  I think the problem should be here.

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