Update rust

libstd/libc/src/lib.rs

@@ -2,7 +2,6 @@
 #![allow(non_camel_case_types)]
 #![feature(asm)]
 #![feature(const_fn)]
-#![feature(naked_functions)]
 #![feature(thread_local)]
 
 #![cfg_attr(stdbuild, feature(no_std, core, core_slice_ext, staged_api, custom_attribute, cfg_target_vendor))]
@@ -15,14 +14,11 @@
 
 pub use types::*;
 pub use funcs::*;
-pub use start::*;
 pub use syscall::*;
 
 /// Basic types (not usually system specific)
 mod types;
 /// Basic functions (not system specific)
 mod funcs;
-/// Start function and call in to libstd
-mod start;
 /// Conversion for syscall library (specific to Redox)
 mod syscall;

libstd/libc/src/start.rs

@@ -1,40 +0,0 @@
-use super::exit;
-
-#[no_mangle]
-#[naked]
-#[cfg(target_arch = "x86")]
-pub unsafe fn _start() {
-    asm!("push esp
-        call _start_stack
-        pop esp"
-        :
-        :
-        : "memory"
-        : "intel", "volatile");
-    let _ = exit(0);
-}
-
-#[no_mangle]
-#[naked]
-#[cfg(target_arch = "x86_64")]
-pub unsafe fn _start() {
-    asm!("mov rdi, rsp
-        and rsp, 0xFFFFFFFFFFFFFFF0
-        call _start_stack"
-        :
-        :
-        : "memory"
-        : "intel", "volatile");
-    let _ = exit(0);
-}
-
-#[no_mangle]
-pub unsafe extern "C" fn _start_stack(stack: *const usize){
-    extern "C" {
-        fn main(argc: usize, argv: *const *const u8) -> usize;
-    }
-
-    let argc = *stack as usize;
-    let argv = stack.offset(1) as *const *const u8;
-    let _ = exit(main(argc, argv));
-}