diff --git a/lib/std/os/linux.zig b/lib/std/os/linux.zig
index 5d8ace6606..4cf305bb20 100644
--- a/lib/std/os/linux.zig
+++ b/lib/std/os/linux.zig
@@ -39,6 +39,7 @@ const arch_bits = switch (native_arch) {
     .riscv64 => @import("linux/riscv64.zig"),
     .sparc64 => @import("linux/sparc64.zig"),
     .loongarch64 => @import("linux/loongarch64.zig"),
+    .m68k => @import("linux/m68k.zig"),
     .mips, .mipsel => @import("linux/mips.zig"),
     .mips64, .mips64el => @import("linux/mips64.zig"),
     .powerpc, .powerpcle => @import("linux/powerpc.zig"),
@@ -279,7 +280,7 @@ pub const MAP = switch (native_arch) {
         UNINITIALIZED: bool = false,
         _: u5 = 0,
     },
-    .hexagon, .s390x => packed struct(u32) {
+    .hexagon, .m68k, .s390x => packed struct(u32) {
         TYPE: MAP_TYPE,
         FIXED: bool = false,
         ANONYMOUS: bool = false,
@@ -333,7 +334,7 @@ pub const O = switch (native_arch) {
         SYNC: bool = false,
         PATH: bool = false,
         TMPFILE: bool = false,
-        _: u9 = 0,
+        _23: u9 = 0,
     },
     .x86, .riscv32, .riscv64, .loongarch64 => packed struct(u32) {
         ACCMODE: ACCMODE = .RDONLY,
@@ -355,7 +356,7 @@ pub const O = switch (native_arch) {
         SYNC: bool = false,
         PATH: bool = false,
         TMPFILE: bool = false,
-        _: u9 = 0,
+        _23: u9 = 0,
     },
     .aarch64, .aarch64_be, .arm, .armeb, .thumb, .thumbeb => packed struct(u32) {
         ACCMODE: ACCMODE = .RDONLY,
@@ -377,7 +378,7 @@ pub const O = switch (native_arch) {
         SYNC: bool = false,
         PATH: bool = false,
         TMPFILE: bool = false,
-        _: u9 = 0,
+        _23: u9 = 0,
     },
     .sparc64 => packed struct(u32) {
         ACCMODE: ACCMODE = .RDONLY,
@@ -402,7 +403,7 @@ pub const O = switch (native_arch) {
         SYNC: bool = false,
         PATH: bool = false,
         TMPFILE: bool = false,
-        _: u6 = 0,
+        _27: u6 = 0,
     },
     .mips, .mipsel, .mips64, .mips64el => packed struct(u32) {
         ACCMODE: ACCMODE = .RDONLY,
@@ -426,7 +427,7 @@ pub const O = switch (native_arch) {
         _20: u1 = 0,
         PATH: bool = false,
         TMPFILE: bool = false,
-        _: u9 = 0,
+        _23: u9 = 0,
     },
     .powerpc, .powerpcle, .powerpc64, .powerpc64le => packed struct(u32) {
         ACCMODE: ACCMODE = .RDONLY,
@@ -448,7 +449,7 @@ pub const O = switch (native_arch) {
         SYNC: bool = false,
         PATH: bool = false,
         TMPFILE: bool = false,
-        _: u9 = 0,
+        _23: u9 = 0,
     },
     .hexagon, .s390x => packed struct(u32) {
         ACCMODE: ACCMODE = .RDONLY,
@@ -467,15 +468,36 @@ pub const O = switch (native_arch) {
         NOFOLLOW: bool = false,
         NOATIME: bool = false,
         CLOEXEC: bool = false,
-        _17: u1 = 0,
+        _20: u1 = 0,
         PATH: bool = false,
-        _: u10 = 0,
+        _22: u10 = 0,
 
         // #define O_RSYNC    04010000
         // #define O_SYNC     04010000
         // #define O_TMPFILE 020200000
         // #define O_NDELAY O_NONBLOCK
     },
+    .m68k => packed struct(u32) {
+        ACCMODE: ACCMODE = .RDONLY,
+        _2: u4 = 0,
+        CREAT: bool = false,
+        EXCL: bool = false,
+        NOCTTY: bool = false,
+        TRUNC: bool = false,
+        APPEND: bool = false,
+        NONBLOCK: bool = false,
+        DSYNC: bool = false,
+        ASYNC: bool = false,
+        DIRECTORY: bool = false,
+        NOFOLLOW: bool = false,
+        DIRECT: bool = false,
+        LARGEFILE: bool = false,
+        NOATIME: bool = false,
+        CLOEXEC: bool = false,
+        _20: u1 = 0,
+        PATH: bool = false,
+        _22: u10 = 0,
+    },
     else => @compileError("missing std.os.linux.O constants for this architecture"),
 };
 
diff --git a/lib/std/os/linux/m68k.zig b/lib/std/os/linux/m68k.zig
new file mode 100644
index 0000000000..95277223c9
--- /dev/null
+++ b/lib/std/os/linux/m68k.zig
@@ -0,0 +1,275 @@
+const builtin = @import("builtin");
+const std = @import("../../std.zig");
+const iovec = std.posix.iovec;
+const iovec_const = std.posix.iovec_const;
+const linux = std.os.linux;
+const SYS = linux.SYS;
+const uid_t = std.os.linux.uid_t;
+const gid_t = std.os.linux.uid_t;
+const pid_t = std.os.linux.pid_t;
+const sockaddr = linux.sockaddr;
+const socklen_t = linux.socklen_t;
+const timespec = std.os.linux.timespec;
+
+pub fn syscall0(number: SYS) usize {
+    return asm volatile ("trap #0"
+        : [ret] "={d0}" (-> usize),
+        : [number] "{d0}" (@intFromEnum(number)),
+        : "memory"
+    );
+}
+
+pub fn syscall1(number: SYS, arg1: usize) usize {
+    return asm volatile ("trap #0"
+        : [ret] "={d0}" (-> usize),
+        : [number] "{d0}" (@intFromEnum(number)),
+          [arg1] "{d1}" (arg1),
+        : "memory"
+    );
+}
+
+pub fn syscall2(number: SYS, arg1: usize, arg2: usize) usize {
+    return asm volatile ("trap #0"
+        : [ret] "={d0}" (-> usize),
+        : [number] "{d0}" (@intFromEnum(number)),
+          [arg1] "{d1}" (arg1),
+          [arg2] "{d2}" (arg2),
+        : "memory"
+    );
+}
+
+pub fn syscall3(number: SYS, arg1: usize, arg2: usize, arg3: usize) usize {
+    return asm volatile ("trap #0"
+        : [ret] "={d0}" (-> usize),
+        : [number] "{d0}" (@intFromEnum(number)),
+          [arg1] "{d1}" (arg1),
+          [arg2] "{d2}" (arg2),
+          [arg3] "{d3}" (arg3),
+        : "memory"
+    );
+}
+
+pub fn syscall4(number: SYS, arg1: usize, arg2: usize, arg3: usize, arg4: usize) usize {
+    return asm volatile ("trap #0"
+        : [ret] "={d0}" (-> usize),
+        : [number] "{d0}" (@intFromEnum(number)),
+          [arg1] "{d1}" (arg1),
+          [arg2] "{d2}" (arg2),
+          [arg3] "{d3}" (arg3),
+          [arg4] "{d4}" (arg4),
+        : "memory"
+    );
+}
+
+pub fn syscall5(number: SYS, arg1: usize, arg2: usize, arg3: usize, arg4: usize, arg5: usize) usize {
+    return asm volatile ("trap #0"
+        : [ret] "={d0}" (-> usize),
+        : [number] "{d0}" (@intFromEnum(number)),
+          [arg1] "{d1}" (arg1),
+          [arg2] "{d2}" (arg2),
+          [arg3] "{d3}" (arg3),
+          [arg4] "{d4}" (arg4),
+          [arg5] "{d5}" (arg5),
+        : "memory"
+    );
+}
+
+pub fn syscall6(
+    number: SYS,
+    arg1: usize,
+    arg2: usize,
+    arg3: usize,
+    arg4: usize,
+    arg5: usize,
+    arg6: usize,
+) usize {
+    return asm volatile ("trap #0"
+        : [ret] "={d0}" (-> usize),
+        : [number] "{d0}" (@intFromEnum(number)),
+          [arg1] "{d1}" (arg1),
+          [arg2] "{d2}" (arg2),
+          [arg3] "{d3}" (arg3),
+          [arg4] "{d4}" (arg4),
+          [arg5] "{d5}" (arg5),
+          [arg6] "{a0}" (arg6),
+        : "memory"
+    );
+}
+
+pub fn clone() callconv(.naked) usize {
+    // __clone(func, stack, flags, arg, ptid, tls, ctid)
+    //         +4,   +8,    +12,   +16, +20,  +24, +28
+    //
+    // syscall(SYS_clone, flags, stack, ptid, ctid, tls)
+    //         d0,        d1,    d2,    d3,   d4,   d5
+    asm volatile (
+        \\ // Save callee-saved registers.
+        \\ movem.l %%d2-%%d5, -(%%sp) // sp -= 16
+        \\
+        \\ // Save func and arg.
+        \\ move.l 16+4(%%sp), %%a0
+        \\ move.l 16+16(%%sp), %%a1
+        \\
+        \\ // d0 = syscall(d0, d1, d2, d3, d4, d5)
+        \\ move.l #120, %%d0 // SYS_clone
+        \\ move.l 16+12(%%sp), %%d1
+        \\ move.l 16+8(%%sp), %%d2
+        \\ move.l 16+20(%%sp), %%d3
+        \\ move.l 16+28(%%sp), %%d4
+        \\ move.l 16+24(%%sp), %%d5
+        \\ and.l #-4, %%d2 // Align the child stack pointer.
+        \\ trap #0
+        \\
+        \\ // Are we in the parent or child?
+        \\ tst.l %%d0
+        \\ beq 1f
+        \\ // Parent:
+        \\
+        \\ // Restore callee-saved registers and return.
+        \\ movem.l (%%sp)+, %%d2-%%d5 // sp += 16
+        \\ rts
+        \\
+        \\ // Child:
+        \\1:
+    );
+    if (builtin.unwind_tables != .none or !builtin.strip_debug_info) asm volatile (
+        \\ .cfi_undefined %%pc
+    );
+    asm volatile (
+        \\ suba.l %%fp, %%fp
+        \\
+        \\ // d0 = func(a1)
+        \\ move.l %%a1, -(%%sp)
+        \\ jsr (%%a0)
+        \\
+        \\ // syscall(d0, d1)
+        \\ move.l %%d0, %%d1
+        \\ move.l #1, %%d0 // SYS_exit
+        \\ trap #0
+    );
+}
+
+pub const restore = restore_rt;
+
+pub fn restore_rt() callconv(.naked) noreturn {
+    asm volatile ("trap #0"
+        :
+        : [number] "{d0}" (@intFromEnum(SYS.rt_sigreturn)),
+        : "memory"
+    );
+}
+
+pub const F = struct {
+    pub const DUPFD = 0;
+    pub const GETFD = 1;
+    pub const SETFD = 2;
+    pub const GETFL = 3;
+    pub const SETFL = 4;
+
+    pub const SETOWN = 8;
+    pub const GETOWN = 9;
+    pub const SETSIG = 10;
+    pub const GETSIG = 11;
+
+    pub const GETLK = 12;
+    pub const SETLK = 13;
+    pub const SETLKW = 14;
+
+    pub const SETOWN_EX = 15;
+    pub const GETOWN_EX = 16;
+
+    pub const GETOWNER_UIDS = 17;
+
+    pub const RDLCK = 0;
+    pub const WRLCK = 1;
+    pub const UNLCK = 2;
+};
+
+pub const blksize_t = i32;
+pub const nlink_t = u32;
+pub const time_t = i32;
+pub const mode_t = u32;
+pub const off_t = i64;
+pub const ino_t = u64;
+pub const dev_t = u64;
+pub const blkcnt_t = i64;
+
+pub const timeval = extern struct {
+    sec: time_t,
+    usec: i32,
+};
+
+pub const Flock = extern struct {
+    type: i16,
+    whence: i16,
+    start: off_t,
+    len: off_t,
+    pid: pid_t,
+};
+
+// TODO: not 100% sure of padding for msghdr
+pub const msghdr = extern struct {
+    name: ?*sockaddr,
+    namelen: socklen_t,
+    iov: [*]iovec,
+    iovlen: i32,
+    control: ?*anyopaque,
+    controllen: socklen_t,
+    flags: i32,
+};
+
+pub const msghdr_const = extern struct {
+    name: ?*const sockaddr,
+    namelen: socklen_t,
+    iov: [*]const iovec_const,
+    iovlen: i32,
+    control: ?*const anyopaque,
+    controllen: socklen_t,
+    flags: i32,
+};
+
+pub const Stat = extern struct {
+    dev: dev_t,
+    __pad: i16,
+    __ino_truncated: i32,
+    mode: mode_t,
+    nlink: nlink_t,
+    uid: uid_t,
+    gid: gid_t,
+    rdev: dev_t,
+    __pad2: i16,
+    size: off_t,
+    blksize: blksize_t,
+    blocks: blkcnt_t,
+    atim: timespec,
+    mtim: timespec,
+    ctim: timespec,
+    ino: ino_t,
+
+    pub fn atime(self: @This()) timespec {
+        return self.atim;
+    }
+
+    pub fn mtime(self: @This()) timespec {
+        return self.mtim;
+    }
+
+    pub fn ctime(self: @This()) timespec {
+        return self.ctim;
+    }
+};
+
+pub const Elf_Symndx = u32;
+
+// m68k has multiple minimum page sizes.
+// glibc sets MMAP2_PAGE_UNIT to -1 so it is queried at runtime.
+pub const MMAP2_UNIT = -1;
+
+// No VDSO used as of glibc 112a0ae18b831bf31f44d81b82666980312511d6.
+pub const VDSO = void;
+
+/// TODO
+pub const ucontext_t = void;
+
+/// TODO
+pub const getcontext = {};