diff --git a/src/header/mod.rs b/src/header/mod.rs
index d3a7ba758e..b4f6c0bd86 100644
--- a/src/header/mod.rs
+++ b/src/header/mod.rs
@@ -102,6 +102,8 @@ pub mod sys_select;
 pub mod sys_socket;
 pub mod sys_stat;
 pub mod sys_statvfs;
+#[allow(non_upper_case_globals)]
+pub mod sys_syscall;
 pub mod sys_time;
 #[deprecated]
 pub mod sys_timeb;
diff --git a/src/header/sys_syscall/aarch64.rs b/src/header/sys_syscall/aarch64.rs
new file mode 100644
index 0000000000..369a4b045a
--- /dev/null
+++ b/src/header/sys_syscall/aarch64.rs
@@ -0,0 +1,303 @@
+// Adapted from sc crate: https://github.com/japaric/syscall.rs/blob/master/src/platform/linux-aarch64/nr.rs
+// const ([A-Z_\d]+): -> const __NR_\L$1:
+
+pub const __NR_accept: usize = 202;
+pub const __NR_accept4: usize = 242;
+pub const __NR_acct: usize = 89;
+pub const __NR_add_key: usize = 217;
+pub const __NR_adjtimex: usize = 171;
+pub const __NR_arch_specific_syscall: usize = 244;
+pub const __NR_bind: usize = 200;
+pub const __NR_bpf: usize = 280;
+pub const __NR_brk: usize = 214;
+pub const __NR_capget: usize = 90;
+pub const __NR_capset: usize = 91;
+pub const __NR_chdir: usize = 49;
+pub const __NR_chroot: usize = 51;
+pub const __NR_clock_adjtime: usize = 266;
+pub const __NR_clock_getres: usize = 114;
+pub const __NR_clock_gettime: usize = 113;
+pub const __NR_clock_nanosleep: usize = 115;
+pub const __NR_clock_settime: usize = 112;
+pub const __NR_clone: usize = 220;
+pub const __NR_clone3: usize = 435;
+pub const __NR_close: usize = 57;
+pub const __NR_close_range: usize = 436;
+pub const __NR_connect: usize = 203;
+pub const __NR_copy_file_range: usize = 285;
+pub const __NR_delete_module: usize = 106;
+pub const __NR_dup: usize = 23;
+pub const __NR_dup3: usize = 24;
+pub const __NR_epoll_create1: usize = 20;
+pub const __NR_epoll_ctl: usize = 21;
+pub const __NR_epoll_pwait: usize = 22;
+pub const __NR_epoll_pwait2: usize = 441;
+pub const __NR_eventfd2: usize = 19;
+pub const __NR_execve: usize = 221;
+pub const __NR_execveat: usize = 281;
+pub const __NR_exit: usize = 93;
+pub const __NR_exit_group: usize = 94;
+pub const __NR_faccessat: usize = 48;
+pub const __NR_faccessat2: usize = 439;
+pub const __NR_fadvise64: usize = 223;
+pub const __NR_fallocate: usize = 47;
+pub const __NR_fanotify_init: usize = 262;
+pub const __NR_fanotify_mark: usize = 263;
+pub const __NR_fchdir: usize = 50;
+pub const __NR_fchmod: usize = 52;
+pub const __NR_fchmodat: usize = 53;
+pub const __NR_fchown: usize = 55;
+pub const __NR_fchownat: usize = 54;
+pub const __NR_fcntl: usize = 25;
+pub const __NR_fdatasync: usize = 83;
+pub const __NR_fgetxattr: usize = 10;
+pub const __NR_finit_module: usize = 273;
+pub const __NR_flistxattr: usize = 13;
+pub const __NR_flock: usize = 32;
+pub const __NR_fremovexattr: usize = 16;
+pub const __NR_fsconfig: usize = 431;
+pub const __NR_fsetxattr: usize = 7;
+pub const __NR_fsmount: usize = 432;
+pub const __NR_fsopen: usize = 430;
+pub const __NR_fspick: usize = 433;
+pub const __NR_fstat: usize = 80;
+pub const __NR_fstatfs: usize = 44;
+pub const __NR_fsync: usize = 82;
+pub const __NR_ftruncate: usize = 46;
+pub const __NR_futex: usize = 98;
+pub const __NR_get_mempolicy: usize = 236;
+pub const __NR_get_robust_list: usize = 100;
+pub const __NR_getcpu: usize = 168;
+pub const __NR_getcwd: usize = 17;
+pub const __NR_getdents64: usize = 61;
+pub const __NR_getegid: usize = 177;
+pub const __NR_geteuid: usize = 175;
+pub const __NR_getgid: usize = 176;
+pub const __NR_getgroups: usize = 158;
+pub const __NR_getitimer: usize = 102;
+pub const __NR_getpeername: usize = 205;
+pub const __NR_getpgid: usize = 155;
+pub const __NR_getpid: usize = 172;
+pub const __NR_getppid: usize = 173;
+pub const __NR_getpriority: usize = 141;
+pub const __NR_getrandom: usize = 278;
+pub const __NR_getresgid: usize = 150;
+pub const __NR_getresuid: usize = 148;
+pub const __NR_getrlimit: usize = 163;
+pub const __NR_getrusage: usize = 165;
+pub const __NR_getsid: usize = 156;
+pub const __NR_getsockname: usize = 204;
+pub const __NR_getsockopt: usize = 209;
+pub const __NR_gettid: usize = 178;
+pub const __NR_gettimeofday: usize = 169;
+pub const __NR_getuid: usize = 174;
+pub const __NR_getxattr: usize = 8;
+pub const __NR_init_module: usize = 105;
+pub const __NR_inotify_add_watch: usize = 27;
+pub const __NR_inotify_init1: usize = 26;
+pub const __NR_inotify_rm_watch: usize = 28;
+pub const __NR_io_cancel: usize = 3;
+pub const __NR_io_destroy: usize = 1;
+pub const __NR_io_getevents: usize = 4;
+pub const __NR_io_pgetevents: usize = 292;
+pub const __NR_io_setup: usize = 0;
+pub const __NR_io_submit: usize = 2;
+pub const __NR_io_uring_enter: usize = 426;
+pub const __NR_io_uring_register: usize = 427;
+pub const __NR_io_uring_setup: usize = 425;
+pub const __NR_ioctl: usize = 29;
+pub const __NR_ioprio_get: usize = 31;
+pub const __NR_ioprio_set: usize = 30;
+pub const __NR_kcmp: usize = 272;
+pub const __NR_kexec_file_load: usize = 294;
+pub const __NR_kexec_load: usize = 104;
+pub const __NR_keyctl: usize = 219;
+pub const __NR_kill: usize = 129;
+pub const __NR_lgetxattr: usize = 9;
+pub const __NR_linkat: usize = 37;
+pub const __NR_listen: usize = 201;
+pub const __NR_listxattr: usize = 11;
+pub const __NR_llistxattr: usize = 12;
+pub const __NR_lookup_dcookie: usize = 18;
+pub const __NR_lremovexattr: usize = 15;
+pub const __NR_lseek: usize = 62;
+pub const __NR_lsetxattr: usize = 6;
+pub const __NR_madvise: usize = 233;
+pub const __NR_mbind: usize = 235;
+pub const __NR_membarrier: usize = 283;
+pub const __NR_memfd_create: usize = 279;
+pub const __NR_migrate_pages: usize = 238;
+pub const __NR_mincore: usize = 232;
+pub const __NR_mkdirat: usize = 34;
+pub const __NR_mknodat: usize = 33;
+pub const __NR_mlock: usize = 228;
+pub const __NR_mlock2: usize = 284;
+pub const __NR_mlockall: usize = 230;
+pub const __NR_mmap: usize = 222;
+pub const __NR_mount: usize = 40;
+pub const __NR_mount_setattr: usize = 442;
+pub const __NR_move_mount: usize = 429;
+pub const __NR_move_pages: usize = 239;
+pub const __NR_mprotect: usize = 226;
+pub const __NR_mq_getsetattr: usize = 185;
+pub const __NR_mq_notify: usize = 184;
+pub const __NR_mq_open: usize = 180;
+pub const __NR_mq_timedreceive: usize = 183;
+pub const __NR_mq_timedsend: usize = 182;
+pub const __NR_mq_unlink: usize = 181;
+pub const __NR_mremap: usize = 216;
+pub const __NR_msgctl: usize = 187;
+pub const __NR_msgget: usize = 186;
+pub const __NR_msgrcv: usize = 188;
+pub const __NR_msgsnd: usize = 189;
+pub const __NR_msync: usize = 227;
+pub const __NR_munlock: usize = 229;
+pub const __NR_munlockall: usize = 231;
+pub const __NR_munmap: usize = 215;
+pub const __NR_name_to_handle_at: usize = 264;
+pub const __NR_nanosleep: usize = 101;
+pub const __NR_newfstatat: usize = 79;
+pub const __NR_nfsservctl: usize = 42;
+pub const __NR_open_by_handle_at: usize = 265;
+pub const __NR_open_tree: usize = 428;
+pub const __NR_openat: usize = 56;
+pub const __NR_openat2: usize = 437;
+pub const __NR_perf_event_open: usize = 241;
+pub const __NR_personality: usize = 92;
+pub const __NR_pidfd_getfd: usize = 438;
+pub const __NR_pidfd_open: usize = 434;
+pub const __NR_pidfd_send_signal: usize = 424;
+pub const __NR_pipe2: usize = 59;
+pub const __NR_pivot_root: usize = 41;
+pub const __NR_pkey_alloc: usize = 289;
+pub const __NR_pkey_free: usize = 290;
+pub const __NR_pkey_mprotect: usize = 288;
+pub const __NR_ppoll: usize = 73;
+pub const __NR_prctl: usize = 167;
+pub const __NR_pread64: usize = 67;
+pub const __NR_preadv: usize = 69;
+pub const __NR_preadv2: usize = 286;
+pub const __NR_prlimit64: usize = 261;
+pub const __NR_process_madvise: usize = 440;
+pub const __NR_process_vm_readv: usize = 270;
+pub const __NR_process_vm_writev: usize = 271;
+pub const __NR_pselect6: usize = 72;
+pub const __NR_ptrace: usize = 117;
+pub const __NR_pwrite64: usize = 68;
+pub const __NR_pwritev: usize = 70;
+pub const __NR_pwritev2: usize = 287;
+pub const __NR_quotactl: usize = 60;
+pub const __NR_read: usize = 63;
+pub const __NR_readahead: usize = 213;
+pub const __NR_readlinkat: usize = 78;
+pub const __NR_readv: usize = 65;
+pub const __NR_reboot: usize = 142;
+pub const __NR_recvfrom: usize = 207;
+pub const __NR_recvmmsg: usize = 243;
+pub const __NR_recvmsg: usize = 212;
+pub const __NR_remap_file_pages: usize = 234;
+pub const __NR_removexattr: usize = 14;
+pub const __NR_renameat: usize = 38;
+pub const __NR_renameat2: usize = 276;
+pub const __NR_request_key: usize = 218;
+pub const __NR_restart_syscall: usize = 128;
+pub const __NR_rseq: usize = 293;
+pub const __NR_rt_sigaction: usize = 134;
+pub const __NR_rt_sigpending: usize = 136;
+pub const __NR_rt_sigprocmask: usize = 135;
+pub const __NR_rt_sigqueueinfo: usize = 138;
+pub const __NR_rt_sigreturn: usize = 139;
+pub const __NR_rt_sigsuspend: usize = 133;
+pub const __NR_rt_sigtimedwait: usize = 137;
+pub const __NR_rt_tgsigqueueinfo: usize = 240;
+pub const __NR_sched_get_priority_max: usize = 125;
+pub const __NR_sched_get_priority_min: usize = 126;
+pub const __NR_sched_getaffinity: usize = 123;
+pub const __NR_sched_getattr: usize = 275;
+pub const __NR_sched_getparam: usize = 121;
+pub const __NR_sched_getscheduler: usize = 120;
+pub const __NR_sched_rr_get_interval: usize = 127;
+pub const __NR_sched_setaffinity: usize = 122;
+pub const __NR_sched_setattr: usize = 274;
+pub const __NR_sched_setparam: usize = 118;
+pub const __NR_sched_setscheduler: usize = 119;
+pub const __NR_sched_yield: usize = 124;
+pub const __NR_seccomp: usize = 277;
+pub const __NR_semctl: usize = 191;
+pub const __NR_semget: usize = 190;
+pub const __NR_semop: usize = 193;
+pub const __NR_semtimedop: usize = 192;
+pub const __NR_sendfile: usize = 71;
+pub const __NR_sendmmsg: usize = 269;
+pub const __NR_sendmsg: usize = 211;
+pub const __NR_sendto: usize = 206;
+pub const __NR_set_mempolicy: usize = 237;
+pub const __NR_set_robust_list: usize = 99;
+pub const __NR_set_tid_address: usize = 96;
+pub const __NR_setdomainname: usize = 162;
+pub const __NR_setfsgid: usize = 152;
+pub const __NR_setfsuid: usize = 151;
+pub const __NR_setgid: usize = 144;
+pub const __NR_setgroups: usize = 159;
+pub const __NR_sethostname: usize = 161;
+pub const __NR_setitimer: usize = 103;
+pub const __NR_setns: usize = 268;
+pub const __NR_setpgid: usize = 154;
+pub const __NR_setpriority: usize = 140;
+pub const __NR_setregid: usize = 143;
+pub const __NR_setresgid: usize = 149;
+pub const __NR_setresuid: usize = 147;
+pub const __NR_setreuid: usize = 145;
+pub const __NR_setrlimit: usize = 164;
+pub const __NR_setsid: usize = 157;
+pub const __NR_setsockopt: usize = 208;
+pub const __NR_settimeofday: usize = 170;
+pub const __NR_setuid: usize = 146;
+pub const __NR_setxattr: usize = 5;
+pub const __NR_shmat: usize = 196;
+pub const __NR_shmctl: usize = 195;
+pub const __NR_shmdt: usize = 197;
+pub const __NR_shmget: usize = 194;
+pub const __NR_shutdown: usize = 210;
+pub const __NR_sigaltstack: usize = 132;
+pub const __NR_signalfd4: usize = 74;
+pub const __NR_socket: usize = 198;
+pub const __NR_socketpair: usize = 199;
+pub const __NR_splice: usize = 76;
+pub const __NR_statfs: usize = 43;
+pub const __NR_statx: usize = 291;
+pub const __NR_swapoff: usize = 225;
+pub const __NR_swapon: usize = 224;
+pub const __NR_symlinkat: usize = 36;
+pub const __NR_sync: usize = 81;
+pub const __NR_sync_file_range: usize = 84;
+pub const __NR_syncfs: usize = 267;
+pub const __NR_syscalls: usize = 443;
+pub const __NR_sysinfo: usize = 179;
+pub const __NR_syslog: usize = 116;
+pub const __NR_tee: usize = 77;
+pub const __NR_tgkill: usize = 131;
+pub const __NR_timer_create: usize = 107;
+pub const __NR_timer_delete: usize = 111;
+pub const __NR_timer_getoverrun: usize = 109;
+pub const __NR_timer_gettime: usize = 108;
+pub const __NR_timer_settime: usize = 110;
+pub const __NR_timerfd_create: usize = 85;
+pub const __NR_timerfd_gettime: usize = 87;
+pub const __NR_timerfd_settime: usize = 86;
+pub const __NR_times: usize = 153;
+pub const __NR_tkill: usize = 130;
+pub const __NR_truncate: usize = 45;
+pub const __NR_umask: usize = 166;
+pub const __NR_umount2: usize = 39;
+pub const __NR_uname: usize = 160;
+pub const __NR_unlinkat: usize = 35;
+pub const __NR_unshare: usize = 97;
+pub const __NR_userfaultfd: usize = 282;
+pub const __NR_utimensat: usize = 88;
+pub const __NR_vhangup: usize = 58;
+pub const __NR_vmsplice: usize = 75;
+pub const __NR_wait4: usize = 260;
+pub const __NR_waitid: usize = 95;
+pub const __NR_write: usize = 64;
+pub const __NR_writev: usize = 66;
diff --git a/src/header/sys_syscall/cbindgen.toml b/src/header/sys_syscall/cbindgen.toml
new file mode 100644
index 0000000000..6976288d42
--- /dev/null
+++ b/src/header/sys_syscall/cbindgen.toml
@@ -0,0 +1,8 @@
+# POSIX header spec: https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/sys_statvfs.h.html
+#
+# Spec quotations relating to includes:
+# - "The <sys/statvfs.h> header shall define the fsblkcnt_t and fsfilcnt_t types as described in <sys/types.h>."
+sys_includes = ["sys/types.h"]
+include_guard = "_SYS_SYSCALL_H"
+language = "C"
+no_includes = true
diff --git a/src/header/sys_syscall/mod.rs b/src/header/sys_syscall/mod.rs
new file mode 100644
index 0000000000..cb8c1350e7
--- /dev/null
+++ b/src/header/sys_syscall/mod.rs
@@ -0,0 +1,5 @@
+// copied from sc crate
+#[cfg(all(target_os = "linux", target_arch = "aarch64"))]
+pub mod aarch64;
+#[cfg(all(target_os = "linux", target_arch = "x86_64"))]
+pub mod x86_64;
diff --git a/src/header/sys_syscall/x86_64.rs b/src/header/sys_syscall/x86_64.rs
new file mode 100644
index 0000000000..d5fd94ae8a
--- /dev/null
+++ b/src/header/sys_syscall/x86_64.rs
@@ -0,0 +1,356 @@
+// Adapted from sc crate: https://github.com/japaric/syscall.rs/blob/master/src/platform/linux-x86_64/nr.rs
+// const ([A-Z_\d]+): -> const __NR_\L$1:
+
+pub const __NR_accept: usize = 43;
+pub const __NR_accept4: usize = 288;
+pub const __NR_access: usize = 21;
+pub const __NR_acct: usize = 163;
+pub const __NR_add_key: usize = 248;
+pub const __NR_adjtimex: usize = 159;
+pub const __NR_afs_syscall: usize = 183;
+pub const __NR_alarm: usize = 37;
+pub const __NR_arch_prctl: usize = 158;
+pub const __NR_bind: usize = 49;
+pub const __NR_bpf: usize = 321;
+pub const __NR_brk: usize = 12;
+pub const __NR_capget: usize = 125;
+pub const __NR_capset: usize = 126;
+pub const __NR_chdir: usize = 80;
+pub const __NR_chmod: usize = 90;
+pub const __NR_chown: usize = 92;
+pub const __NR_chroot: usize = 161;
+pub const __NR_clock_adjtime: usize = 305;
+pub const __NR_clock_getres: usize = 229;
+pub const __NR_clock_gettime: usize = 228;
+pub const __NR_clock_nanosleep: usize = 230;
+pub const __NR_clock_settime: usize = 227;
+pub const __NR_clone: usize = 56;
+pub const __NR_clone3: usize = 435;
+pub const __NR_close: usize = 3;
+pub const __NR_close_range: usize = 436;
+pub const __NR_connect: usize = 42;
+pub const __NR_copy_file_range: usize = 326;
+pub const __NR_creat: usize = 85;
+pub const __NR_create_module: usize = 174;
+pub const __NR_delete_module: usize = 176;
+pub const __NR_dup: usize = 32;
+pub const __NR_dup2: usize = 33;
+pub const __NR_dup3: usize = 292;
+pub const __NR_epoll_create: usize = 213;
+pub const __NR_epoll_create1: usize = 291;
+pub const __NR_epoll_ctl: usize = 233;
+pub const __NR_epoll_ctl_old: usize = 214;
+pub const __NR_epoll_pwait: usize = 281;
+pub const __NR_epoll_pwait2: usize = 441;
+pub const __NR_epoll_wait: usize = 232;
+pub const __NR_epoll_wait_old: usize = 215;
+pub const __NR_eventfd: usize = 284;
+pub const __NR_eventfd2: usize = 290;
+pub const __NR_execve: usize = 59;
+pub const __NR_execveat: usize = 322;
+pub const __NR_exit: usize = 60;
+pub const __NR_exit_group: usize = 231;
+pub const __NR_faccessat: usize = 269;
+pub const __NR_faccessat2: usize = 439;
+pub const __NR_fadvise64: usize = 221;
+pub const __NR_fallocate: usize = 285;
+pub const __NR_fanotify_init: usize = 300;
+pub const __NR_fanotify_mark: usize = 301;
+pub const __NR_fchdir: usize = 81;
+pub const __NR_fchmod: usize = 91;
+pub const __NR_fchmodat: usize = 268;
+pub const __NR_fchown: usize = 93;
+pub const __NR_fchownat: usize = 260;
+pub const __NR_fcntl: usize = 72;
+pub const __NR_fdatasync: usize = 75;
+pub const __NR_fgetxattr: usize = 193;
+pub const __NR_finit_module: usize = 313;
+pub const __NR_flistxattr: usize = 196;
+pub const __NR_flock: usize = 73;
+pub const __NR_fork: usize = 57;
+pub const __NR_fremovexattr: usize = 199;
+pub const __NR_fsconfig: usize = 431;
+pub const __NR_fsetxattr: usize = 190;
+pub const __NR_fsmount: usize = 432;
+pub const __NR_fsopen: usize = 430;
+pub const __NR_fspick: usize = 433;
+pub const __NR_fstat: usize = 5;
+pub const __NR_fstatfs: usize = 138;
+pub const __NR_fsync: usize = 74;
+pub const __NR_ftruncate: usize = 77;
+pub const __NR_futex: usize = 202;
+pub const __NR_futimesat: usize = 261;
+pub const __NR_get_kernel_syms: usize = 177;
+pub const __NR_get_mempolicy: usize = 239;
+pub const __NR_get_robust_list: usize = 274;
+pub const __NR_get_thread_area: usize = 211;
+pub const __NR_getcpu: usize = 309;
+pub const __NR_getcwd: usize = 79;
+pub const __NR_getdents: usize = 78;
+pub const __NR_getdents64: usize = 217;
+pub const __NR_getegid: usize = 108;
+pub const __NR_geteuid: usize = 107;
+pub const __NR_getgid: usize = 104;
+pub const __NR_getgroups: usize = 115;
+pub const __NR_getitimer: usize = 36;
+pub const __NR_getpeername: usize = 52;
+pub const __NR_getpgid: usize = 121;
+pub const __NR_getpgrp: usize = 111;
+pub const __NR_getpid: usize = 39;
+pub const __NR_getpmsg: usize = 181;
+pub const __NR_getppid: usize = 110;
+pub const __NR_getpriority: usize = 140;
+pub const __NR_getrandom: usize = 318;
+pub const __NR_getresgid: usize = 120;
+pub const __NR_getresuid: usize = 118;
+pub const __NR_getrlimit: usize = 97;
+pub const __NR_getrusage: usize = 98;
+pub const __NR_getsid: usize = 124;
+pub const __NR_getsockname: usize = 51;
+pub const __NR_getsockopt: usize = 55;
+pub const __NR_gettid: usize = 186;
+pub const __NR_gettimeofday: usize = 96;
+pub const __NR_getuid: usize = 102;
+pub const __NR_getxattr: usize = 191;
+pub const __NR_init_module: usize = 175;
+pub const __NR_inotify_add_watch: usize = 254;
+pub const __NR_inotify_init: usize = 253;
+pub const __NR_inotify_init1: usize = 294;
+pub const __NR_inotify_rm_watch: usize = 255;
+pub const __NR_io_cancel: usize = 210;
+pub const __NR_io_destroy: usize = 207;
+pub const __NR_io_getevents: usize = 208;
+pub const __NR_io_pgetevents: usize = 333;
+pub const __NR_io_setup: usize = 206;
+pub const __NR_io_submit: usize = 209;
+pub const __NR_io_uring_enter: usize = 426;
+pub const __NR_io_uring_register: usize = 427;
+pub const __NR_io_uring_setup: usize = 425;
+pub const __NR_ioctl: usize = 16;
+pub const __NR_ioperm: usize = 173;
+pub const __NR_iopl: usize = 172;
+pub const __NR_ioprio_get: usize = 252;
+pub const __NR_ioprio_set: usize = 251;
+pub const __NR_kcmp: usize = 312;
+pub const __NR_kexec_file_load: usize = 320;
+pub const __NR_kexec_load: usize = 246;
+pub const __NR_keyctl: usize = 250;
+pub const __NR_kill: usize = 62;
+pub const __NR_lchown: usize = 94;
+pub const __NR_lgetxattr: usize = 192;
+pub const __NR_link: usize = 86;
+pub const __NR_linkat: usize = 265;
+pub const __NR_listen: usize = 50;
+pub const __NR_listxattr: usize = 194;
+pub const __NR_llistxattr: usize = 195;
+pub const __NR_lookup_dcookie: usize = 212;
+pub const __NR_lremovexattr: usize = 198;
+pub const __NR_lseek: usize = 8;
+pub const __NR_lsetxattr: usize = 189;
+pub const __NR_lstat: usize = 6;
+pub const __NR_madvise: usize = 28;
+pub const __NR_mbind: usize = 237;
+pub const __NR_membarrier: usize = 324;
+pub const __NR_memfd_create: usize = 319;
+pub const __NR_migrate_pages: usize = 256;
+pub const __NR_mincore: usize = 27;
+pub const __NR_mkdir: usize = 83;
+pub const __NR_mkdirat: usize = 258;
+pub const __NR_mknod: usize = 133;
+pub const __NR_mknodat: usize = 259;
+pub const __NR_mlock: usize = 149;
+pub const __NR_mlock2: usize = 325;
+pub const __NR_mlockall: usize = 151;
+pub const __NR_mmap: usize = 9;
+pub const __NR_modify_ldt: usize = 154;
+pub const __NR_mount: usize = 165;
+pub const __NR_mount_setattr: usize = 442;
+pub const __NR_move_mount: usize = 429;
+pub const __NR_move_pages: usize = 279;
+pub const __NR_mprotect: usize = 10;
+pub const __NR_mq_getsetattr: usize = 245;
+pub const __NR_mq_notify: usize = 244;
+pub const __NR_mq_open: usize = 240;
+pub const __NR_mq_timedreceive: usize = 243;
+pub const __NR_mq_timedsend: usize = 242;
+pub const __NR_mq_unlink: usize = 241;
+pub const __NR_mremap: usize = 25;
+pub const __NR_msgctl: usize = 71;
+pub const __NR_msgget: usize = 68;
+pub const __NR_msgrcv: usize = 70;
+pub const __NR_msgsnd: usize = 69;
+pub const __NR_msync: usize = 26;
+pub const __NR_munlock: usize = 150;
+pub const __NR_munlockall: usize = 152;
+pub const __NR_munmap: usize = 11;
+pub const __NR_name_to_handle_at: usize = 303;
+pub const __NR_nanosleep: usize = 35;
+pub const __NR_newfstatat: usize = 262;
+pub const __NR_nfsservctl: usize = 180;
+pub const __NR_open: usize = 2;
+pub const __NR_open_by_handle_at: usize = 304;
+pub const __NR_open_tree: usize = 428;
+pub const __NR_openat: usize = 257;
+pub const __NR_openat2: usize = 437;
+pub const __NR_pause: usize = 34;
+pub const __NR_perf_event_open: usize = 298;
+pub const __NR_personality: usize = 135;
+pub const __NR_pidfd_getfd: usize = 438;
+pub const __NR_pidfd_open: usize = 434;
+pub const __NR_pidfd_send_signal: usize = 424;
+pub const __NR_pipe: usize = 22;
+pub const __NR_pipe2: usize = 293;
+pub const __NR_pivot_root: usize = 155;
+pub const __NR_pkey_alloc: usize = 330;
+pub const __NR_pkey_free: usize = 331;
+pub const __NR_pkey_mprotect: usize = 329;
+pub const __NR_poll: usize = 7;
+pub const __NR_ppoll: usize = 271;
+pub const __NR_prctl: usize = 157;
+pub const __NR_pread64: usize = 17;
+pub const __NR_preadv: usize = 295;
+pub const __NR_preadv2: usize = 327;
+pub const __NR_prlimit64: usize = 302;
+pub const __NR_process_madvise: usize = 440;
+pub const __NR_process_vm_readv: usize = 310;
+pub const __NR_process_vm_writev: usize = 311;
+pub const __NR_pselect6: usize = 270;
+pub const __NR_ptrace: usize = 101;
+pub const __NR_putpmsg: usize = 182;
+pub const __NR_pwrite64: usize = 18;
+pub const __NR_pwritev: usize = 296;
+pub const __NR_pwritev2: usize = 328;
+pub const __NR_query_module: usize = 178;
+pub const __NR_quotactl: usize = 179;
+pub const __NR_read: usize = 0;
+pub const __NR_readahead: usize = 187;
+pub const __NR_readlink: usize = 89;
+pub const __NR_readlinkat: usize = 267;
+pub const __NR_readv: usize = 19;
+pub const __NR_reboot: usize = 169;
+pub const __NR_recvfrom: usize = 45;
+pub const __NR_recvmmsg: usize = 299;
+pub const __NR_recvmsg: usize = 47;
+pub const __NR_remap_file_pages: usize = 216;
+pub const __NR_removexattr: usize = 197;
+pub const __NR_rename: usize = 82;
+pub const __NR_renameat: usize = 264;
+pub const __NR_renameat2: usize = 316;
+pub const __NR_request_key: usize = 249;
+pub const __NR_restart_syscall: usize = 219;
+pub const __NR_rmdir: usize = 84;
+pub const __NR_rseq: usize = 334;
+pub const __NR_rt_sigaction: usize = 13;
+pub const __NR_rt_sigpending: usize = 127;
+pub const __NR_rt_sigprocmask: usize = 14;
+pub const __NR_rt_sigqueueinfo: usize = 129;
+pub const __NR_rt_sigreturn: usize = 15;
+pub const __NR_rt_sigsuspend: usize = 130;
+pub const __NR_rt_sigtimedwait: usize = 128;
+pub const __NR_rt_tgsigqueueinfo: usize = 297;
+pub const __NR_sched_get_priority_max: usize = 146;
+pub const __NR_sched_get_priority_min: usize = 147;
+pub const __NR_sched_getaffinity: usize = 204;
+pub const __NR_sched_getattr: usize = 315;
+pub const __NR_sched_getparam: usize = 143;
+pub const __NR_sched_getscheduler: usize = 145;
+pub const __NR_sched_rr_get_interval: usize = 148;
+pub const __NR_sched_setaffinity: usize = 203;
+pub const __NR_sched_setattr: usize = 314;
+pub const __NR_sched_setparam: usize = 142;
+pub const __NR_sched_setscheduler: usize = 144;
+pub const __NR_sched_yield: usize = 24;
+pub const __NR_seccomp: usize = 317;
+pub const __NR_security: usize = 185;
+pub const __NR_select: usize = 23;
+pub const __NR_semctl: usize = 66;
+pub const __NR_semget: usize = 64;
+pub const __NR_semop: usize = 65;
+pub const __NR_semtimedop: usize = 220;
+pub const __NR_sendfile: usize = 40;
+pub const __NR_sendmmsg: usize = 307;
+pub const __NR_sendmsg: usize = 46;
+pub const __NR_sendto: usize = 44;
+pub const __NR_set_mempolicy: usize = 238;
+pub const __NR_set_robust_list: usize = 273;
+pub const __NR_set_thread_area: usize = 205;
+pub const __NR_set_tid_address: usize = 218;
+pub const __NR_setdomainname: usize = 171;
+pub const __NR_setfsgid: usize = 123;
+pub const __NR_setfsuid: usize = 122;
+pub const __NR_setgid: usize = 106;
+pub const __NR_setgroups: usize = 116;
+pub const __NR_sethostname: usize = 170;
+pub const __NR_setitimer: usize = 38;
+pub const __NR_setns: usize = 308;
+pub const __NR_setpgid: usize = 109;
+pub const __NR_setpriority: usize = 141;
+pub const __NR_setregid: usize = 114;
+pub const __NR_setresgid: usize = 119;
+pub const __NR_setresuid: usize = 117;
+pub const __NR_setreuid: usize = 113;
+pub const __NR_setrlimit: usize = 160;
+pub const __NR_setsid: usize = 112;
+pub const __NR_setsockopt: usize = 54;
+pub const __NR_settimeofday: usize = 164;
+pub const __NR_setuid: usize = 105;
+pub const __NR_setxattr: usize = 188;
+pub const __NR_shmat: usize = 30;
+pub const __NR_shmctl: usize = 31;
+pub const __NR_shmdt: usize = 67;
+pub const __NR_shmget: usize = 29;
+pub const __NR_shutdown: usize = 48;
+pub const __NR_sigaltstack: usize = 131;
+pub const __NR_signalfd: usize = 282;
+pub const __NR_signalfd4: usize = 289;
+pub const __NR_socket: usize = 41;
+pub const __NR_socketpair: usize = 53;
+pub const __NR_splice: usize = 275;
+pub const __NR_stat: usize = 4;
+pub const __NR_statfs: usize = 137;
+pub const __NR_statx: usize = 332;
+pub const __NR_swapoff: usize = 168;
+pub const __NR_swapon: usize = 167;
+pub const __NR_symlink: usize = 88;
+pub const __NR_symlinkat: usize = 266;
+pub const __NR_sync: usize = 162;
+pub const __NR_sync_file_range: usize = 277;
+pub const __NR_syncfs: usize = 306;
+pub const __NR_sysfs: usize = 139;
+pub const __NR_sysinfo: usize = 99;
+pub const __NR_syslog: usize = 103;
+pub const __NR_tee: usize = 276;
+pub const __NR_tgkill: usize = 234;
+pub const __NR_time: usize = 201;
+pub const __NR_timer_create: usize = 222;
+pub const __NR_timer_delete: usize = 226;
+pub const __NR_timer_getoverrun: usize = 225;
+pub const __NR_timer_gettime: usize = 224;
+pub const __NR_timer_settime: usize = 223;
+pub const __NR_timerfd_create: usize = 283;
+pub const __NR_timerfd_gettime: usize = 287;
+pub const __NR_timerfd_settime: usize = 286;
+pub const __NR_times: usize = 100;
+pub const __NR_tkill: usize = 200;
+pub const __NR_truncate: usize = 76;
+pub const __NR_tuxcall: usize = 184;
+pub const __NR_umask: usize = 95;
+pub const __NR_umount2: usize = 166;
+pub const __NR_uname: usize = 63;
+pub const __NR_unlink: usize = 87;
+pub const __NR_unlinkat: usize = 263;
+pub const __NR_unshare: usize = 272;
+pub const __NR_uselib: usize = 134;
+pub const __NR_userfaultfd: usize = 323;
+pub const __NR_ustat: usize = 136;
+pub const __NR_utime: usize = 132;
+pub const __NR_utimensat: usize = 280;
+pub const __NR_utimes: usize = 235;
+pub const __NR_vfork: usize = 58;
+pub const __NR_vhangup: usize = 153;
+pub const __NR_vmsplice: usize = 278;
+pub const __NR_vserver: usize = 236;
+pub const __NR_wait4: usize = 61;
+pub const __NR_waitid: usize = 247;
+pub const __NR_write: usize = 1;
+pub const __NR_writev: usize = 20;
diff --git a/src/header/unistd/mod.rs b/src/header/unistd/mod.rs
index d3bc890f48..205a77a413 100644
--- a/src/header/unistd/mod.rs
+++ b/src/header/unistd/mod.rs
@@ -54,6 +54,8 @@ mod brk;
 mod getopt;
 mod getpass;
 mod pathconf;
+#[cfg(target_os = "linux")]
+pub mod syscall;
 mod sysconf;
 
 pub const F_OK: c_int = 0;
diff --git a/src/header/unistd/syscall.rs b/src/header/unistd/syscall.rs
new file mode 100644
index 0000000000..d9d00218bf
--- /dev/null
+++ b/src/header/unistd/syscall.rs
@@ -0,0 +1,14 @@
+use crate::platform::types::c_long;
+
+/// Non-POSIX, see <https://www.man7.org/linux/man-pages/man3/getopt.3.html>.
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn syscall(sysno: c_long, mut args: ...) -> c_long {
+    let a1 = unsafe { args.arg::<usize>() };
+    let a2 = unsafe { args.arg::<usize>() };
+    let a3 = unsafe { args.arg::<usize>() };
+    let a4 = unsafe { args.arg::<usize>() };
+    let a5 = unsafe { args.arg::<usize>() };
+    let a6 = unsafe { args.arg::<usize>() };
+
+    (unsafe { sc::syscall6(sysno as usize, a1, a2, a3, a4, a5, a6) }) as c_long
+}