Update syscall

Cargo.lock

@@ -123,9 +123,9 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.2.11"
+version = "0.2.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8380fe0152551244f0747b1bf41737e0f8a74f97a14ccefd1148187271634f3c"
+checksum = "8ae183fc1b06c149f0c1793e1eb447c8b04bfe46d48e9e48bfb8d2d7ed64ecf0"
 dependencies = [
  "bitflags",
 ]

Cargo.toml

@@ -5,7 +5,7 @@ version = "0.1.0"
 [dependencies]
 rand_chacha = "0.2"
 rand_core = "0.5"
-redox_syscall = "0.2.9"
+redox_syscall = "0.2.12"
 sha2 = "0.8"
 
 [target.'cfg(target_arch = "x86_64")'.dependencies]

src/main.rs

@@ -1,5 +1,3 @@
-#![feature(llvm_asm)]
-
 extern crate syscall;
 
 extern crate rand_chacha;
@@ -12,6 +10,8 @@ use std::fs::File;
 use std::io::{Read, Write};
 use std::process;
 
+use std::arch::asm;
+
 use rand_chacha::ChaCha20Rng;
 use rand_core::RngCore;
 
@@ -58,11 +58,7 @@ fn create_rdrand_seed() -> [u8; SEED_BYTES] {
                 // We get 8 bytes at a time from rdrand instruction
                 let rand: u64;
                 unsafe {
-                    llvm_asm!("rdrand rax"
-                    : "={rax}"(rand)
-                    :
-                    :
-                    : "intel", "volatile");
+                    asm!("rdrand rax", out("rax") rand);
                 }
 
                 rng[i * 8..(i * 8 + 8)].copy_from_slice(&rand.to_le_bytes());
@@ -396,7 +392,7 @@ impl SchemeMut for RandScheme {
     }
 }
 
-fn daemon(daemon: syscall::Daemon) -> ! {
+fn daemon(daemon: syscall::Daemon) -> core::convert::Infallible {
     let socket = File::create(":rand").expect("randd: failed to create rand scheme");
 
     let mut scheme = RandScheme::new(socket);