we do not have procfs h on android  if we add it on bionic and platforms this hack  and couple of others  are not required  it should be added to old platforms as well to remove these hacks completely note that glibc comment for procfs h says anyway  the whole purpose of this file is for gdb and gdb only  don t read too much into it don t use it for anything other than gdb unless you know what you are doing 