cbe: implement optional slice representation change

1 files changed, 72 insertions, 0 deletions

diff --git a/lib/std/os/linux.zig b/lib/std/os/linux.zig
index 8ca20bc330..da9ea74327 100644
--- a/lib/std/os/linux.zig
+++ b/lib/std/os/linux.zig
@@ -804,6 +804,63 @@ pub fn exit_group(status: i32) noreturn {
     unreachable;
 }
 
+/// flags for the `reboot' system call.
+pub const LINUX_REBOOT = struct {
+    /// First magic value required to use _reboot() system call.
+    pub const MAGIC1 = enum(u32) {
+        MAGIC1 = 0xfee1dead,
+        _,
+    };
+
+    /// Second magic value required to use _reboot() system call.
+    pub const MAGIC2 = enum(u32) {
+        MAGIC2 = 672274793,
+        MAGIC2A = 85072278,
+        MAGIC2B = 369367448,
+        MAGIC2C = 537993216,
+        _,
+    };
+
+    /// Commands accepted by the _reboot() system call.
+    pub const CMD = enum(u32) {
+        /// Restart system using default command and mode.
+        RESTART = 0x01234567,
+
+        /// Stop OS and give system control to ROM monitor, if any.
+        HALT = 0xCDEF0123,
+
+        /// Ctrl-Alt-Del sequence causes RESTART command.
+        CAD_ON = 0x89ABCDEF,
+
+        /// Ctrl-Alt-Del sequence sends SIGINT to init task.
+        CAD_OFF = 0x00000000,
+
+        /// Stop OS and remove all power from system, if possible.
+        POWER_OFF = 0x4321FEDC,
+
+        /// Restart system using given command string.
+        RESTART2 = 0xA1B2C3D4,
+
+        /// Suspend system using software suspend if compiled in.
+        SW_SUSPEND = 0xD000FCE2,
+
+        /// Restart system using a previously loaded Linux kernel
+        KEXEC = 0x45584543,
+
+        _,
+    };
+};
+
+pub fn reboot(magic: LINUX_REBOOT.MAGIC1, magic2: LINUX_REBOOT.MAGIC2, cmd: LINUX_REBOOT.CMD, arg: ?*const anyopaque) usize {
+    return std.os.linux.syscall4(
+        .reboot,
+        @enumToInt(magic),
+        @enumToInt(magic2),
+        @enumToInt(cmd),
+        @ptrToInt(arg),
+    );
+}
+
 pub fn getrandom(buf: [*]u8, count: usize, flags: u32) usize {
     return syscall3(.getrandom, @ptrToInt(buf), count, flags);
 }
@@ -3208,6 +3265,21 @@ pub const sockaddr = extern struct {
         queue_id: u32,
         shared_umem_fd: u32,
     };
+
+    /// Address structure for vSockets
+    pub const vm = extern struct {
+        family: sa_family_t = AF.VSOCK,
+        reserved1: u16 = 0,
+        port: u32,
+        cid: u32,
+        flags: u8,
+
+        /// The total size of this structure should be exactly the same as that of struct sockaddr.
+        zero: [3]u8 = [_]u8{0} ** 3,
+        comptime {
+            std.debug.assert(@sizeOf(vm) == @sizeOf(sockaddr));
+        }
+    };
 };
 
 pub const mmsghdr = extern struct {