__glibc_objsize   151 lib/cdefs.h    # define __glibc_objsize(__o) __builtin_dynamic_object_size (__o, 1)
__glibc_objsize   154 lib/cdefs.h    # define __glibc_objsize(__o) __bos (__o)
__glibc_objsize   158 lib/libc-config.h # undef __glibc_objsize