HelenOS sources

USER_ADDRESS_SPACE_END_ARCH   70 kernel/generic/include/mm/as.h #define USER_ADDRESS_SPACE_END      USER_ADDRESS_SPACE_END_ARCH
USER_ADDRESS_SPACE_END_ARCH   48 uspace/lib/c/arch/ia32/src/stacktrace.c 	return (fp != 0) && (fp <= USER_ADDRESS_SPACE_END_ARCH);