HelenOS sources

area_check        346 uspace/lib/c/generic/malloc.c 	area_check(area);
area_check        393 uspace/lib/c/generic/malloc.c 	area_check(area);
area_check        428 uspace/lib/c/generic/malloc.c 				area_check(prev);
area_check        434 uspace/lib/c/generic/malloc.c 				area_check(next);
area_check        555 uspace/lib/c/generic/malloc.c 	area_check((void *) area);
area_check        848 uspace/lib/c/generic/malloc.c 	area_check(area);
area_check        976 uspace/lib/c/generic/malloc.c 	area_check(area);
HelenOS homepage, sources at GitHub