Commit 6fd358d287
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 = {};
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"),
};