bin/51493: gdb/t_regress/pie test fails on sparc

[gson%gson.org@localhost (Andreas Gustafsson)]

>Number:         51493
>Category:       bin
>Synopsis:       gdb/t_regress/pie test fails on sparc
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Sep 21 07:20:00 +0000 2016
>Originator:     Andreas Gustafsson
>Release:        NetBSD-current, source date >= 2016.09.15.17.44.16
>Organization:

>Environment:
System: NetBSD
Architecture: sparc
Machine: sparc
>Description:

The support for PIE excecutables in gdb recently regresssed on sparc,
as indicated by the gdb/t_regress/pie test case.  The problem started
with this commit:

  2016.09.15.17.44.16 christos src/sys/kern/kern_exec.c 1.437

>How-To-Repeat:

Run the ATF tests on sparc.

>Fix: