Add declarations for the _UPT_* helper routines (libunwind via ptrace helpers).
Add declarations for the _UPT_* helper routines (libunwind via ptrace helpers).

(Logical change 1.43)

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