Remove the shim kernel crate

kernel/src/syscall/gettimeofday.rs

@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: MPL-2.0
+
+use super::SyscallReturn;
+use crate::{
+    prelude::*,
+    time::{timeval_t, SystemTime},
+};
+
+// The use of the timezone structure is obsolete.
+// Glibc sets the timezone_addr argument to NULL, so just ignore it.
+pub fn sys_gettimeofday(
+    timeval_addr: Vaddr,
+    /* timezone_addr: Vaddr, */ ctx: &Context,
+) -> Result<SyscallReturn> {
+    if timeval_addr == 0 {
+        return Ok(SyscallReturn::Return(0));
+    }
+
+    let time_val = {
+        let now = SystemTime::now();
+        let time_duration = now.duration_since(&SystemTime::UNIX_EPOCH)?;
+        timeval_t::from(time_duration)
+    };
+    ctx.get_user_space().write_val(timeval_addr, &time_val)?;
+
+    Ok(SyscallReturn::Return(0))
+}