[Bug other/60681] Libbacktrace library doesn't work with QEMU in application mode

[tetra2005 at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60681

Yuri Gribov <tetra2005 at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |tetra2005 at gmail dot com

--- Comment #2 from Yuri Gribov <tetra2005 at gmail dot com> ---
(In reply to Maxim Ostapenko from comment #0)
> After investigation I discovered that libbacktrace scans /proc/self/exe to
> init symbolizer and in QEMU case it finds information about qemu-arm binary
> itself, not a.out.

I think this needs to be fixed (or rather implemented) in QEMU. They already
intercept accesses to /proc/self/{maps,stat,auxv}.

See https://github.com/qemu/qemu/blob/master/linux-user/syscall.c