syscalls not known by auditctl

There are some syscall numbers that are not known by auditctl. When running on IX86, /usr/include/asm-i386/unistd.h contains: #define __NR_setfsuid32 215 But I am unable to audit this syscall number. Because when I add the rule: auditctl -a entry,always -S 215 auditctl returns: AUDIT_LIST: entry always syscall=(null) No rules This is true for other syscalls found in /usr/include/asm-i386/unistd.h that are not found in /usr/include/asm-x86_64/unistd.h -debbie