cur_brk          1526 gc/os_dep.c        caddr_t cur_brk = (caddr_t)sbrk(0);
cur_brk          1528 gc/os_dep.c        SBRK_ARG_T lsbs = (word)cur_brk & (GC_page_size-1);
cur_brk          1535 gc/os_dep.c        if (cur_brk == my_brk_val) {
cur_brk          1629 gc/os_dep.c        ptr_t cur_brk = (ptr_t)sbrk(0);
cur_brk          1630 gc/os_dep.c        SBRK_ARG_T lsbs = (word)cur_brk & (GC_page_size-1);