NAME pkey_alloc, pkey_free - allocate or free a protection key LIBRARY Standard C library ... test_macros(7) */ #include <sys/mman.h> int pkey_alloc(unsigned int flags , unsigned i…NAME pkey_alloc, pkey_free - allocate or free a protection key LIBRARY Standard C library ... test_macros(7) */ #include <sys/mman.h> int pkey_alloc(unsigned int flags , unsigned i…protection keys should simply call pkey_alloc (2) and test whether the call succeeds, instead ... related system calls: pkey_mprotect (2), pkey_alloc (2), and pkey_free (2). The Li…protection key must be allocated with pkey_alloc (2) before it is passed to pkey ... pkey has not been allocated with pkey_alloc (2) EINVAL Both PROT_GROWSUP and PROTprotection key must be allocated with pkey_alloc (2) before it is passed to pkey ... pkey has not been allocated with pkey_alloc (2) EINVAL Both PROT_GROWSUP and PROT