Symbol: mimmutable
src/system/libroot/posix/malloc/openbsd/malloc.c
1496
if (mimmutable(p, roundup_sz + 2 * MALLOC_PAGESIZE))
src/system/libroot/posix/malloc/openbsd/malloc.c
1510
if (mimmutable(&malloc_readonly,
src/system/libroot/posix/malloc/openbsd/malloc.c
1546
if (mimmutable(p, sz))