[Qemu-devel] Cross-debugging support in QEMU using GDB

[Boyapati, Anitha]

I have couple of doubts w.r.t cross-debugging in Qemu.

(1) Can Qemu be run without OS support? If so, can I know some examples where 
this has been already done?

(2) Can Qemu be used like a simulator to carry out cross-debugging, typically 
running a dejaGNU for a target X (again without an OS support)?  The 
documentation page http://www.qemu.org/qemu-doc.html#SEC1 refers to GDB usage 
with linux image. I would like to know if the same can be allowed for other 
cross-compiled executables. Essentially, what I am looking for is something 
like,
        qemu-x -s <any_ELF_executable> [options]
        targetx-gdb <any_ELF_executable>

where qemu-x is a user mode qemu for target X.

More on (2): if there is no OS, then I think a small application like 
bootloader should probably be present to launch the cross-compiled executable 
on to Qemu. Any further suggestions on how to make (2) possible?  All the 
previous threads in developer mail archives dealt with debugging linux image in 
some form or the other. 

Thanks
Anitha