mikros: Add wake_new syscall and wake new processes after setting STDIO

library/std/src/os/mikros/syscalls.rs

@@ -36,3 +36,8 @@ pub fn get_pid() -> u64 {
 pub fn irq_register(irq: u8) -> Result<(), ()> {
     syscalls::irq_register(irq)
 }
+
+#[stable(feature = "mikros", since = "1.80.0")]
+pub fn wake_new(pid: u64) -> Result<(), ()> {
+    syscalls::wake_new(pid)
+}

library/std/src/sys/pal/mikros/process.rs

@@ -141,6 +141,7 @@ pub fn spawn(
             let _ = &rpc::send_call(vfs_pid, 2, 4, &postcard::to_allocvec(&(pid, stdio)).unwrap())
                 .get_return();
         };
+        syscalls::wake_new(pid).unwrap();
         Ok((Process { dummy: () }, StdioPipes { stdin: None, stdout: None, stderr: None }))
     }
 

library/std/src/sys/pal/mikros/syscalls.rs

@@ -190,3 +190,7 @@ pub(crate) fn unmap(space: u64, page: Page, num_pages: usize) -> Result<(), ()>
 pub fn irq_register(irq: u8) -> Result<(), ()> {
     if syscall1(23, irq as u64) == 0 { Ok(()) } else { Err(()) }
 }
+
+pub fn wake_new(pid: u64) -> Result<(), ()> {
+    if syscall1(24, pid) == 0 { Ok(()) } else { Err(()) }
+}