Fix stdlib div functions, add _Exit

src/header/stdlib/cbindgen.toml

@@ -2,7 +2,7 @@ sys_includes = ["stddef.h", "alloca.h"]
 include_guard = "_STDLIB_H"
 trailer = "#include <bits/stdlib.h>"
 language = "C"
-style = "Tag"
+style = "Type"
 
 [enum]
 prefix_with_name = true

src/header/stdlib/mod.rs

@@ -33,6 +33,11 @@ pub const MB_LEN_MAX: c_int = 4;
 static mut ATEXIT_FUNCS: [Option<extern "C" fn()>; 32] = [None; 32];
 static mut RNG: Option<XorShiftRng> = None;
 
+#[no_mangle]
+pub extern "C" fn _Exit(status: c_int) {
+    unistd::_exit(status);
+}
+
 #[no_mangle]
 pub unsafe extern "C" fn a64l(s: *const c_char) -> c_long {
     if s.is_null() {
@@ -144,6 +149,11 @@ pub extern "C" fn atol(s: *const c_char) -> c_long {
     dec_num_from_ascii!(s, c_long)
 }
 
+#[no_mangle]
+pub extern "C" fn atoll(s: *const c_char) -> c_longlong {
+    dec_num_from_ascii!(s, c_longlong)
+}
+
 unsafe extern "C" fn void_cmp(a: *const c_void, b: *const c_void) -> c_int {
     *(a as *const i32) - *(b as *const i32) as c_int
 }