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/mem.rs

@@ -79,7 +79,7 @@ mod tests {
     fn memcmp_eq_one() {
         let a = [1];
         let b = [1];
-        let result = unsafe { super::memcmp(a.as_ptr(), b.as_ptr(), 1)};
+        let result = unsafe { super::memcmp(a.as_ptr(), b.as_ptr(), 1) };
         assert_eq!(result, 0);
     }
 
@@ -103,7 +103,7 @@ mod tests {
     fn memcmp_lt_one() {
         let a = [0];
         let b = [1];
-        let result = unsafe { super::memcmp(a.as_ptr(), b.as_ptr(), 1)};
+        let result = unsafe { super::memcmp(a.as_ptr(), b.as_ptr(), 1) };
         assert_eq!(result, -1);
     }
 
@@ -127,7 +127,7 @@ mod tests {
     fn memcmp_gt_one() {
         let a = [255];
         let b = [1];
-        let result = unsafe { super::memcmp(a.as_ptr(), b.as_ptr(), 1)};
+        let result = unsafe { super::memcmp(a.as_ptr(), b.as_ptr(), 1) };
         assert_eq!(result, 1);
     }
 

libuwuc/src/stubs.rs

@@ -0,0 +1 @@
+

libuwuc/src/sys/mod.rs

@@ -5,4 +5,4 @@ cfg_if::cfg_if! {
     } else {
         compile_error!("uwuc does not support this target yet!");
     }
-}
+}

libuwuc/src/sys/x86_64/helpers.rs

@@ -4,4 +4,4 @@ macro_rules! trap {
         ::core::arch::asm!("ud2");
     };
 }
-pub(crate) use trap;
+pub(crate) use trap;

libuwuc/src/sys/x86_64/syscall/mod.rs

@@ -113,4 +113,4 @@ macro_rules! syscall {
     }};
 }
 
-pub use syscall;
+pub use syscall;

rawc/build.rs

@@ -1,4 +1,4 @@
 fn main() {
     println!("cargo:rustc-link-arg=-nostartfiles");
     println!("cargo:rustc-link-arg=-nostdlib");
-}
+}

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/argv.c

@@ -1,9 +1,9 @@
-#include<stdio.h>
+#include <stdio.h>
 
-int main(int argc, char* argv[]) {
-    char *self = argv[0];
-    char first = self[0];
-    if (first != '/') {
-        return 1;
-    }
+int main(int argc, char *argv[]) {
+  char *self = argv[0];
+  char first = self[0];
+  if (first != '/') {
+    return 1;
+  }
 }

tests/c/errno.c

@@ -1,7 +1,6 @@
-//@ignore doens't initialize fs yet
-#include<errno.h>
+#include <errno.h>
 
 int main(void) {
-    int err = errno;
-    return err;
-}
+  int err = errno;
+  return err;
+}

tests/c/getenv.c

@@ -1,13 +1,14 @@
 #include <stdlib.h>
 
 int main(int argc, char *argv[]) {
-    char *env = getenv("PATH");
-    if (!env) {
-        return 1;
-    }
+  char *env = getenv("PATH");
+  if (!env) {
+    return 1;
+  }
 
-    char *env2 = getenv("__some absolutely NONSENSE that no one would ever define please..");
-    if (env2) {
-        return 1;
-    }
+  char *env2 = getenv(
+      "__some absolutely NONSENSE that no one would ever define please..");
+  if (env2) {
+    return 1;
+  }
 }

tests/c/malloc.c

@@ -1,8 +1,8 @@
-#include<stdlib.h>
+#include <stdlib.h>
 
 int main(void) {
-    char *alloc = (char*) malloc(10);
-    *alloc = 1;
-    *(alloc + 9) = 2;
-    free(alloc);
+  char *alloc = (char *)malloc(10);
+  *alloc = 1;
+  *(alloc + 9) = 2;
+  free(alloc);
 }

tests/c/mem.c

@@ -1,13 +1,13 @@
-#include<string.h>
+#include <string.h>
 
 int main(void) {
-    char buf[10];
+  char buf[10];
 
-    memset(buf, 34, sizeof(buf));
+  memset(buf, 34, sizeof(buf));
 
-    for (int i = 0; i < 10; ++i) {
-        if (buf[i] != 34) {
-            return 1;
-        }
+  for (int i = 0; i < 10; ++i) {
+    if (buf[i] != 34) {
+      return 1;
     }
+  }
 }

tests/c/simple_printf.c

@@ -1,8 +1,8 @@
-#include<stdio.h>
+#include <stdio.h>
 
 int main(int argc, char *argv[]) {
-    int result = printf("Hello, world!\n");
-    if (result != 14) {
-        return 1;
-    }
+  int result = printf("Hello, world!\n");
+  if (result != 14) {
+    return 1;
+  }
 }

tests/c/strtol.c

@@ -1,9 +1,9 @@
-#include<stdlib.h>
+#include <stdlib.h>
 
 int main(void) {
-    char *str = "12";
-    long value = strtol(str, NULL, 10);
-    if (value != 12) {
-        return 1;
-    }
+  char *str = "12";
+  long value = strtol(str, NULL, 10);
+  if (value != 12) {
+    return 1;
+  }
 }