_bss_start__      954 gc/include/gc.h       extern int _bss_start__[];
_bss_start__      958 gc/include/gc.h #     define GC_DATASTART ((GC_PTR) GC_MIN(_data_start__, _bss_start__))
_bss_start__       70 src/gauche/extend.h                       (void*)&_bss_start__,                             \