[Bug 1877706] Re: [Feature request] qemu does not support for Octeon MIPS64 on X86

["Philippe Mathieu-Daudé" <1877706@bugs.launchpad.net>]

If your file is "ELF 32-bit MSB executable, MIPS, N32 MIPS64 rel2 version 1",
then you have to use the mipsn32-linux-user variant of QEMU (binary 'qemu-mipsn32').

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

** Tags added: mips

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https://bugs.launchpad.net/bugs/1877706

Title:
   [Feature request] qemu does not support for Octeon MIPS64 on X86

Status in QEMU:
  Invalid

Bug description:
  Description of problem:

  I use mips64-octeon-linux-gnu-gcc cross toolchain on X86,and generate
  binary file.

  > mips64-octeon-linux-gnu-gcc hello.c -static
  > file a.out
  > a.out: ELF 32-bit MSB executable, MIPS, N32 MIPS64 rel2 version 1 (SYSV), statically linked, for GNU/Linux 2.4.0, not stripped

  I execute it with mips64-linux-user mode in qemu, it is invalid.

  > ./qemu-5.0.0/mips64-linux-user/qemu-mips64 a.out
  > a.out: Invalid ELF image for this architecture

  when I choose mips-linux-user mode, it regards as illegal instruction.

  > ./qemu-5.0.0/mips-linux-user/qemu-mips a.out
  > qemu: uncaught target signal 4 (Illegal instruction) - core dumped
  > Illegal instruction (core dumped)

  I would like to know, is this due to my problem or does qemu not
  support Octeon MIPS64 on X86?

  if qemu has supported Octeon MIPS64 on X86, how can I emulate it.

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