s390_guarded_storage(2) System Calls Manual s390_guarded_storage(2) s390_guarded_storage - z/Architecture (libc -lc) #include /* GS_* */ #include /* SYS_* */ #include int syscall(SYS_s390_guarded_storage, int command, struct gs_cb *gs_cb); : glibc s390_guarded_storage() syscall(2). s390_guarded_storage() ( z/Architecture) . 64 ( z14) " " (LGG) " " (LLGFSG) ( ) . command . : GS_ENABLE . . " " (LGSC) ( load_gs_cb() asm/guarded_storage.h) . . GS_DISABLE . . GS_SET_BC_CB gs_cb. . GS_BROADCAST. GS_CLEAR_BC_CB . GS_SET_BC_CB. GS_BROADCAST . . GS_SET_BC_CB . gs_cb GS_SET_BC_CB . s390_guarded_storage() 0. -1 errno . EFAULT command GS_SET_BC_CB gs_cb. EINVAL command . ENOMEM command GS_ENABLE GS_SET_BC_CB . EOPNOTSUPP . s390. 4.12 z14. " z/Architecture" . gs_cb gsepla ( ) ( gseha) gs_epl asm/guarded_storage.h. syscall(2) 3 . . : . 6.18 22 2026 s390_guarded_storage(2)