make errno a static instead of TLS

libuwuc/src/error.rs

@@ -1,18 +1,20 @@
 use core::{cell::UnsafeCell, ptr::addr_of};
 
-#[thread_local]
-static ERRNO: UnsafeCell<i32> = UnsafeCell::new(0);
+use crate::utils::SyncUnsafeCell;
+
+// Todo: This should be a thread local once we have threads.
+static ERRNO: SyncUnsafeCell<i32> = SyncUnsafeCell(UnsafeCell::new(0));
 
 pub fn errno_location() -> *const i32 {
     addr_of!(ERRNO).cast()
 }
 
 pub fn errno() -> i32 {
-    unsafe { *ERRNO.get() }
+    unsafe { *ERRNO.0.get() }
 }
 
 pub fn set_errno(errno: i32) {
-    unsafe { ERRNO.get().write(errno) }
+    unsafe { ERRNO.0.get().write(errno) }
 }
 
 pub const EPERM: i32 = 1; /* Operation not permitted */

libuwuc/src/stubs.rs

@@ -0,0 +1 @@
+

rawc/src/string.rs

@@ -13,7 +13,6 @@ pub unsafe extern "C" fn memcmp(s1: *const u8, s2: *const u8, size: usize) -> i3
     libuwuc::mem::memcmp(s1, s2, size)
 }
 
-
 #[no_mangle]
 pub unsafe extern "C" fn bcmp(s1: *const u8, s2: *const u8, size: usize) -> i32 {
     libuwuc::mem::memcmp(s1, s2, size)

tests/c/errno.c

@@ -1,4 +1,3 @@
-//@ignore doens't initialize fs yet
 #include <errno.h>
 
 int main(void) {

tests/c/getenv.c

@@ -6,7 +6,8 @@ int main(int argc, char *argv[]) {
     return 1;
   }
 
-    char *env2 = getenv("__some absolutely NONSENSE that no one would ever define please..");
+  char *env2 = getenv(
+      "__some absolutely NONSENSE that no one would ever define please..");
   if (env2) {
     return 1;
   }