Re: [Qemu-devel] QEMU support for a.out format executables in user mode emulation

[Peter Maydell]

On 10 July 2013 22:05, Graney, Kevin <address@hidden> wrote:
> I know the QEMU system emulation of SPARC supports booting a.out
> format kernels, but is there currently support for this format
> in user mode emulation?

Not currently.

> If I have an a.out format binary is there an easy way to get
> qemu-sparc to load it or will I have to patch the loader to
> basically add new load_aout_binary and load_aout_image functions?

You'd need to add a load_aout_binary() function plus the
code in linuxload.c which recognises the a.out magic
numbers and calls it. See the current support for both
ELF and bFLT formats.

(load_elf_image() is an internal function to the ELF format
loading code; you don't need to provide an equivalent a.out
function.)

That said, a quick google suggests that SPARC/Linux never
supported a.out binaries -- are you sure these are SPARCLinux
and not SunOS or something?

-- PMM