(ia64_get_stacked): Allow NULL "locp".
(ia64_get_stacked): Allow NULL "locp".

(Logical change 1.76)

rantala/libunwind,evaautomation/libunwind,Keno/libunwind,pathscale/libunwind,vegard/libunwind,Chilledheart/libunwind,rntz/libunwind,vtjnash/libunwind,SyndicateRogue/libunwind,geekboxzone/mmallow_external_libunwind,joyent/libunwind,rantala/libunwind,wdv4758h/libunwind,evaautomation/libunwind,tronical/libunwind,cms-externals/libunwind,dagar/libunwind,DroidSim/platform_external_libunwind,lat/libunwind,mpercy/libunwind,zeldin/platform_external_libunwind,Keno/libunwind,frida/libunwind,0xlab/0xdroid-external_libunwind,dropbox/libunwind,pathscale/libunwind,tronical/libunwind,geekboxzone/lollipop_external_libunwind,android-ia/platform_external_libunwind,CyanogenMod/android_external_libunwind,frida/libunwind,igprof/libunwind,dagar/libunwind,atanasyan/libunwind,fillexen/libunwind,CyanogenMod/android_external_libunwind,ehsan/libunwind,geekboxzone/lollipop_external_libunwind,geekboxzone/mmallow_external_libunwind,fillexen/libunwind,Chilledheart/libunwind,libunwind/libunwind,joyent/libunwind,atanasyan/libunwind-android,SyndicateRogue/libunwind,maltek/platform_external_libunwind,rntz/libunwind,maltek/platform_external_libunwind,geekboxzone/lollipop_external_libunwind,vegard/libunwind,fdoray/libunwind,androidarmv6/android_external_libunwind,atanasyan/libunwind,zeldin/platform_external_libunwind,atanasyan/libunwind,atanasyan/libunwind-android,tony/libunwind,yuyichao/libunwind,adsharma/libunwind,libunwind/libunwind,lat/libunwind,zliu2014/libunwind-tilegx,jrmuizel/libunwind,tronical/libunwind,zliu2014/libunwind-tilegx,geekboxzone/mmallow_external_libunwind,fillexen/libunwind,bo-on-software/libunwind,zeldin/platform_external_libunwind,tkelman/libunwind,android-ia/platform_external_libunwind,bo-on-software/libunwind,unkadoug/libunwind,jrmuizel/libunwind,DroidSim/platform_external_libunwind,unkadoug/libunwind,0xlab/0xdroid-external_libunwind,cms-externals/libunwind,cloudius-systems/libunwind,Keno/libunwind,rntz/libunwind,olibc/libunwind,evaautomation/libunwind,yuyichao/libunwind,yuyichao/libunwind,maltek/platform_external_libunwind,project-zerus/libunwind,androidarmv6/android_external_libunwind,lat/libunwind,project-zerus/libunwind,jrmuizel/libunwind,zliu2014/libunwind-tilegx,olibc/libunwind,0xlab/0xdroid-external_libunwind,dropbox/libunwind,tony/libunwind,vtjnash/libunwind,igprof/libunwind,androidarmv6/android_external_libunwind,bo-on-software/libunwind,DroidSim/platform_external_libunwind,dreal-deps/libunwind,rogwfu/libunwind,tony/libunwind,CyanogenMod/android_external_libunwind,krytarowski/libunwind,krytarowski/libunwind,project-zerus/libunwind,dreal-deps/libunwind,adsharma/libunwind,fdoray/libunwind,android-ia/platform_external_libunwind,dagar/libunwind,olibc/libunwind,martyone/libunwind,igprof/libunwind,dropbox/libunwind,dreal-deps/libunwind,SyndicateRogue/libunwind,martyone/libunwind,tkelman/libunwind,rantala/libunwind,mpercy/libunwind,krytarowski/libunwind,cloudius-systems/libunwind,martyone/libunwind,pathscale/libunwind,unkadoug/libunwind,adsharma/libunwind,djwatson/libunwind,vtjnash/libunwind,ehsan/libunwind,atanasyan/libunwind-android,djwatson/libunwind,fdoray/libunwind,libunwind/libunwind,frida/libunwind,cloudius-systems/libunwind,rogwfu/libunwind,rogwfu/libunwind,wdv4758h/libunwind,djwatson/libunwind,cms-externals/libunwind,Chilledheart/libunwind,vegard/libunwind,joyent/libunwind,tkelman/libunwind,mpercy/libunwind,wdv4758h/libunwind,ehsan/libunwind