Redox Cross Compilation

mk/cfg/x86_64-unknown-redox.mk

@@ -0,0 +1 @@
+# rustbuild-only target

src/liballoc_jemalloc/build.rs

@@ -36,7 +36,8 @@ fn main() {
     // targets, which means we have to build the alloc_jemalloc crate
     // for targets like emscripten, even if we don't use it.
     if target.contains("rumprun") || target.contains("bitrig") || target.contains("openbsd") ||
-       target.contains("msvc") || target.contains("emscripten") || target.contains("fuchsia") {
+       target.contains("msvc") || target.contains("emscripten") || target.contains("fuchsia") ||
+       target.contains("redox") {
         println!("cargo:rustc-cfg=dummy_jemalloc");
         return;
     }

src/liballoc_system/lib.rs

@@ -19,7 +19,7 @@
             issue = "27783")]
 #![feature(allocator)]
 #![feature(staged_api)]
-#![cfg_attr(unix, feature(libc))]
+#![cfg_attr(any(unix, target_os = "redox"), feature(libc))]
 
 // The minimum alignment guaranteed by the architecture. This value is used to
 // add fast paths for low alignment values. In practice, the alignment is a
@@ -71,7 +71,7 @@ pub extern "C" fn __rust_usable_size(size: usize, align: usize) -> usize {
     imp::usable_size(size, align)
 }
 
-#[cfg(unix)]
+#[cfg(any(unix, target_os = "redox"))]
 mod imp {
     extern crate libc;
 
@@ -87,7 +87,7 @@ mod imp {
         }
     }
 
-    #[cfg(target_os = "android")]
+    #[cfg(any(target_os = "android", target_os = "redox"))]
     unsafe fn aligned_malloc(size: usize, align: usize) -> *mut u8 {
         // On android we currently target API level 9 which unfortunately
         // doesn't have the `posix_memalign` API used below. Instead we use
@@ -109,7 +109,7 @@ mod imp {
         libc::memalign(align as libc::size_t, size as libc::size_t) as *mut u8
     }
 
-    #[cfg(not(target_os = "android"))]
+    #[cfg(not(any(target_os = "android", target_os = "redox")))]
     unsafe fn aligned_malloc(size: usize, align: usize) -> *mut u8 {
         let mut out = ptr::null_mut();
         let ret = libc::posix_memalign(&mut out, align as libc::size_t, size as libc::size_t);

src/librustc_back/target/mod.rs

@@ -69,6 +69,7 @@ mod windows_base;
 mod windows_msvc_base;
 mod thumb_base;
 mod fuchsia_base;
+mod redox_base;
 
 pub type TargetResult = Result<Target, String>;
 
@@ -184,6 +185,8 @@ supported_targets! {
     ("aarch64-unknown-fuchsia", aarch64_unknown_fuchsia),
     ("x86_64-unknown-fuchsia", x86_64_unknown_fuchsia),
 
+    ("x86_64-unknown-redox", x86_64_unknown_redox),
+
     ("i386-apple-ios", i386_apple_ios),
     ("x86_64-apple-ios", x86_64_apple_ios),
     ("aarch64-apple-ios", aarch64_apple_ios),

src/librustc_back/target/redox_base.rs

@@ -0,0 +1,50 @@
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use PanicStrategy;
+use target::TargetOptions;
+use std::default::Default;
+
+pub fn opts() -> TargetOptions {
+    TargetOptions {
+        pre_link_args: vec![
+            // We want to be able to strip as much executable code as possible
+            // from the linker command line, and this flag indicates to the
+            // linker that it can avoid linking in dynamic libraries that don't
+            // actually satisfy any symbols up to that point (as with many other
+            // resolutions the linker does). This option only applies to all
+            // following libraries so we're sure to pass it as one of the first
+            // arguments.
+            "-Wl,--as-needed".to_string(),
+
+            // Always enable NX protection when it is available
+            "-Wl,-z,noexecstack".to_string(),
+
+            // Static link
+            "-static".to_string()
+        ],
+        late_link_args: vec![
+            "-lc".to_string(),
+            "-lm".to_string()
+        ],
+        executables: true,
+        relocation_model: "static".to_string(),
+        disable_redzone: true,
+        eliminate_frame_pointer: false,
+        target_family: Some("redox".to_string()),
+        linker_is_gnu: true,
+        no_default_libraries: true,
+        lib_allocation_crate: "alloc_system".to_string(),
+        exe_allocation_crate: "alloc_system".to_string(),
+        has_elf_tls: true,
+        panic_strategy: PanicStrategy::Abort,
+        .. Default::default()
+    }
+}

src/librustc_back/target/x86_64_unknown_redox.rs

@@ -0,0 +1,30 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use target::{Target, TargetResult};
+
+pub fn target() -> TargetResult {
+    let mut base = super::redox_base::opts();
+    base.cpu = "x86-64".to_string();
+    base.max_atomic_width = Some(64);
+    base.pre_link_args.push("-m64".to_string());
+
+    Ok(Target {
+        llvm_target: "x86_64-unknown-redox".to_string(),
+        target_endian: "little".to_string(),
+        target_pointer_width: "64".to_string(),
+        data_layout: "e-m:e-i64:64-f80:128-n8:16:32:64-S128".to_string(),
+        arch: "x86_64".to_string(),
+        target_os: "redox".to_string(),
+        target_env: "".to_string(),
+        target_vendor: "unknown".to_string(),
+        options: base,
+    })
+}

src/libstd/build.rs

@@ -26,7 +26,7 @@ fn main() {
     let target = env::var("TARGET").expect("TARGET was not set");
     let host = env::var("HOST").expect("HOST was not set");
     if cfg!(feature = "backtrace") && !target.contains("apple") && !target.contains("msvc") &&
-        !target.contains("emscripten") && !target.contains("fuchsia") {
+        !target.contains("emscripten") && !target.contains("fuchsia") && !target.contains("redox") {
         build_libbacktrace(&host, &target);
     }
 

src/libstd/rt.rs

@@ -22,8 +22,6 @@
             issue = "0")]
 #![doc(hidden)]
 
-
-
 // Reexport some of our utilities which are expected by other crates.
 pub use panicking::{begin_panic, begin_panic_fmt, update_panic_count};
 

src/libstd/sys/redox/ext/io.rs

@@ -13,8 +13,9 @@
 #![stable(feature = "rust1", since = "1.0.0")]
 
 use fs;
+use net;
 use sys;
-use sys_common::{AsInner, FromInner, IntoInner};
+use sys_common::{self, AsInner, FromInner, IntoInner};
 
 /// Raw file descriptors.
 #[stable(feature = "rust1", since = "1.0.0")]
@@ -89,58 +90,62 @@ impl IntoRawFd for fs::File {
     }
 }
 
-/*
 #[stable(feature = "rust1", since = "1.0.0")]
 impl AsRawFd for net::TcpStream {
-    fn as_raw_fd(&self) -> RawFd { *self.as_inner().socket().as_inner() }
+    fn as_raw_fd(&self) -> RawFd {
+        self.as_inner().as_inner().fd().raw()
+    }
 }
 #[stable(feature = "rust1", since = "1.0.0")]
 impl AsRawFd for net::TcpListener {
-    fn as_raw_fd(&self) -> RawFd { *self.as_inner().socket().as_inner() }
+    fn as_raw_fd(&self) -> RawFd {
+        self.as_inner().as_inner().fd().raw()
+    }
 }
 #[stable(feature = "rust1", since = "1.0.0")]
 impl AsRawFd for net::UdpSocket {
-    fn as_raw_fd(&self) -> RawFd { *self.as_inner().socket().as_inner() }
+    fn as_raw_fd(&self) -> RawFd {
+        self.as_inner().as_inner().fd().raw()
+    }
 }
 
 #[stable(feature = "from_raw_os", since = "1.1.0")]
 impl FromRawFd for net::TcpStream {
     unsafe fn from_raw_fd(fd: RawFd) -> net::TcpStream {
-        let socket = sys::net::Socket::from_inner(fd);
-        net::TcpStream::from_inner(sys_common::net::TcpStream::from_inner(socket))
+        let file = sys::fs::File::from_inner(fd);
+        net::TcpStream::from_inner(sys_common::net::TcpStream::from_inner(file))
     }
 }
 #[stable(feature = "from_raw_os", since = "1.1.0")]
 impl FromRawFd for net::TcpListener {
     unsafe fn from_raw_fd(fd: RawFd) -> net::TcpListener {
-        let socket = sys::net::Socket::from_inner(fd);
-        net::TcpListener::from_inner(sys_common::net::TcpListener::from_inner(socket))
+        let file = sys::fs::File::from_inner(fd);
+        net::TcpListener::from_inner(sys_common::net::TcpListener::from_inner(file))
     }
 }
 #[stable(feature = "from_raw_os", since = "1.1.0")]
 impl FromRawFd for net::UdpSocket {
     unsafe fn from_raw_fd(fd: RawFd) -> net::UdpSocket {
-        let socket = sys::net::Socket::from_inner(fd);
-        net::UdpSocket::from_inner(sys_common::net::UdpSocket::from_inner(socket))
+        let file = sys::fs::File::from_inner(fd);
+        net::UdpSocket::from_inner(sys_common::net::UdpSocket::from_inner(file))
     }
 }
 
 #[stable(feature = "into_raw_os", since = "1.4.0")]
 impl IntoRawFd for net::TcpStream {
     fn into_raw_fd(self) -> RawFd {
-        self.into_inner().into_socket().into_inner()
+        self.into_inner().into_inner().into_fd().into_raw()
     }
 }
 #[stable(feature = "into_raw_os", since = "1.4.0")]
 impl IntoRawFd for net::TcpListener {
     fn into_raw_fd(self) -> RawFd {
-        self.into_inner().into_socket().into_inner()
+        self.into_inner().into_inner().into_fd().into_raw()
     }
 }
 #[stable(feature = "into_raw_os", since = "1.4.0")]
 impl IntoRawFd for net::UdpSocket {
     fn into_raw_fd(self) -> RawFd {
-        self.into_inner().into_socket().into_inner()
+        self.into_inner().into_inner().into_fd().into_raw()
     }
 }
-*/

src/libstd/sys/redox/mod.rs

@@ -10,11 +10,10 @@
 
 #![allow(dead_code, missing_docs, bad_style)]
 
-pub extern crate syscall;
-
 use io::{self, ErrorKind};
 
 pub mod args;
+#[cfg(any(not(cargobuild), feature = "backtrace"))]
 pub mod backtrace;
 pub mod condvar;
 pub mod env;
@@ -34,6 +33,7 @@ pub mod rand;
 pub mod rwlock;
 pub mod stack_overflow;
 pub mod stdio;
+pub mod syscall;
 pub mod thread;
 pub mod thread_local;
 pub mod time;

src/libstd/sys/redox/net/mod.rs

@@ -20,10 +20,11 @@ use vec::{IntoIter, Vec};
 
 use self::dns::{Dns, DnsQuery};
 
-pub extern crate libc as netc;
 pub use self::tcp::{TcpStream, TcpListener};
 pub use self::udp::UdpSocket;
 
+pub mod netc;
+
 mod dns;
 mod tcp;
 mod udp;

src/libstd/sys/redox/net/netc.rs

@@ -0,0 +1,57 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+pub type in_addr_t = u32;
+pub type in_port_t = u16;
+
+pub type socklen_t = u32;
+pub type sa_family_t = u16;
+
+pub const AF_INET: sa_family_t = 1;
+pub const AF_INET6: sa_family_t = 2;
+
+#[derive(Copy, Clone)]
+#[repr(C)]
+pub struct in_addr {
+    pub s_addr: in_addr_t,
+}
+
+#[derive(Copy, Clone)]
+#[repr(C)]
+pub struct in6_addr {
+    pub s6_addr: [u8; 16],
+    __align: [u32; 0],
+}
+
+#[derive(Copy, Clone)]
+#[repr(C)]
+pub struct sockaddr {
+    pub sa_family: sa_family_t,
+    pub sa_data: [u8; 14],
+}
+
+#[derive(Copy, Clone)]
+#[repr(C)]
+pub struct sockaddr_in {
+    pub sin_family: sa_family_t,
+    pub sin_port: in_port_t,
+    pub sin_addr: in_addr,
+    pub sin_zero: [u8; 8],
+}
+
+#[derive(Copy, Clone)]
+#[repr(C)]
+pub struct sockaddr_in6 {
+    pub sin6_family: sa_family_t,
+    pub sin6_port: in_port_t,
+    pub sin6_flowinfo: u32,
+    pub sin6_addr: in6_addr,
+    pub sin6_scope_id: u32,
+}

src/libstd/sys/redox/net/tcp.rs

@@ -12,6 +12,7 @@ use io::{Error, ErrorKind, Result};
 use net::{SocketAddr, Shutdown};
 use path::Path;
 use sys::fs::{File, OpenOptions};
+use sys_common::{AsInner, FromInner, IntoInner};
 use time::Duration;
 use vec::Vec;
 
@@ -112,6 +113,20 @@ impl TcpStream {
     }
 }
 
+impl AsInner<File> for TcpStream {
+    fn as_inner(&self) -> &File { &self.0 }
+}
+
+impl FromInner<File> for TcpStream {
+    fn from_inner(file: File) -> TcpStream {
+        TcpStream(file)
+    }
+}
+
+impl IntoInner<File> for TcpStream {
+    fn into_inner(self) -> File { self.0 }
+}
+
 #[derive(Debug)]
 pub struct TcpListener(File);
 
@@ -168,3 +183,17 @@ impl TcpListener {
         Err(Error::new(ErrorKind::Other, "TcpListener::set_ttl not implemented"))
     }
 }
+
+impl AsInner<File> for TcpListener {
+    fn as_inner(&self) -> &File { &self.0 }
+}
+
+impl FromInner<File> for TcpListener {
+    fn from_inner(file: File) -> TcpListener {
+        TcpListener(file)
+    }
+}
+
+impl IntoInner<File> for TcpListener {
+    fn into_inner(self) -> File { self.0 }
+}