toolchain/49336: gdb does not work on armv7eb

[martin%NetBSD.org@localhost]

>Number:         49336
>Category:       toolchain
>Synopsis:       The NetBSD Foundation, Inc.
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Oct 30 08:35:00 +0000 2014
>Originator:     Martin Husemann
>Release:        NetBSD 7.99.1
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD space-truckin.duskware.de 7.99.1 NetBSD 7.99.1 (CUBIETRUCK) #37: Wed Oct 29 15:19:37 CET 2014 martin%night-owl.duskware.de@localhost:/usr/src/sys/arch/evbarm/compile/CUBIETRUCK evbarm
Architecture: earmv7hfeb
Machine: evbarm
>Description:

gdb seems to be pretty much useless on armv7eb, and I'm not sure objdump -d/-D
output makes much sense either.

Gdb seems to treat the instructions as big endian, and for example inserts
the breakpoint instructions in wrong byte order - but I may have looked
at the wrong part of the maze.

>How-To-Repeat:
gdb a.out
x/16i main
run

>Fix:
n/a