Fix memmove, Spawn → SpawnProcess, more terminal options

src/lib.rs

@@ -1,10 +1,13 @@
 //! Yggdrasil OS application runtime
+#![feature(rustc_private)]
 #![no_std]
 #![deny(missing_docs)]
 #![allow(nonstandard_style)]
 
 use core::ffi::{c_char, c_void};
 
+#[cfg(not(feature = "rustc-dep-of-std"))]
+extern crate compiler_builtins;
 extern crate yggdrasil_abi as abi;
 
 pub use abi::error::Error;
@@ -21,7 +24,8 @@ pub mod io {
 
     pub use abi::io::{
         DeviceRequest, DirectoryEntry, FileAttr, FileMode, FileType, MountOptions, OpenOptions,
-        RawFd, SeekFrom, UnmountOptions,
+        RawFd, SeekFrom, TerminalInputOptions, TerminalLineOptions, TerminalOptions,
+        TerminalOutputOptions, UnmountOptions,
     };
 }
 
@@ -80,25 +84,7 @@ unsafe extern "C" fn memcpy(p0: *mut c_void, p1: *const c_void, len: usize) -> *
 
 #[no_mangle]
 unsafe extern "C" fn memmove(dst: *mut c_void, src: *const c_void, len: usize) -> *mut c_void {
-    if dst as usize == src as usize {
-        return dst;
-    }
-
-    if (src.add(len) as usize) <= (dst as usize) || (dst.add(len) as usize) <= (src as usize) {
-        return memcpy(dst, src, len);
-    }
-
-    if (dst as usize) < (src as usize) {
-        let a = src as usize - dst as usize;
-        memcpy(dst, src, a);
-        memcpy(src as *mut _, src.add(a), len - a);
-    } else {
-        let a = dst as usize - src as usize;
-        memcpy(dst.add(a), dst, len - a);
-        memcpy(dst, src, a);
-    }
-
-    dst
+    compiler_builtins::mem::memmove(dst as _, src as _, len) as _
 }
 
 #[no_mangle]

src/sys/mod.rs

@@ -298,8 +298,8 @@ pub unsafe fn seek(fd: RawFd, pos: SeekFrom) -> Result<u64, Error> {
 /// # Safety
 ///
 /// Unsafe: direct system call.
-pub unsafe fn spawn(options: &SpawnOptions<'_>) -> Result<u32, Error> {
-    u32::from_syscall_result(syscall!(SyscallFunction::Spawn, argp!(options as *const _)))
+pub unsafe fn spawn_process(options: &SpawnOptions<'_>) -> Result<u32, Error> {
+    u32::from_syscall_result(syscall!(SyscallFunction::SpawnProcess, argp!(options as *const _)))
 }
 
 /// System call: wait for a process to finish