Add SOLID targets

compiler/rustc_target/src/spec/aarch64_kmc_solid_asp3.rs

@@ -0,0 +1,19 @@
+use super::{RelocModel, Target, TargetOptions};
+
+pub fn target() -> Target {
+    let base = super::solid_base::opts("asp3");
+    Target {
+        llvm_target: "aarch64-unknown-none".to_string(),
+        pointer_width: 64,
+        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".to_string(),
+        arch: "aarch64".to_string(),
+        options: TargetOptions {
+            linker: Some("aarch64-kmc-elf-gcc".to_owned()),
+            features: "+neon,+fp-armv8".to_string(),
+            relocation_model: RelocModel::Static,
+            disable_redzone: true,
+            max_atomic_width: Some(128),
+            ..base
+        },
+    }
+}

compiler/rustc_target/src/spec/armv7a_kmc_solid_asp3_eabi.rs

@@ -0,0 +1,19 @@
+use super::{RelocModel, Target, TargetOptions};
+
+pub fn target() -> Target {
+    let base = super::solid_base::opts("asp3");
+    Target {
+        llvm_target: "armv7a-none-eabi".to_string(),
+        pointer_width: 32,
+        data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".to_string(),
+        arch: "arm".to_string(),
+        options: TargetOptions {
+            linker: Some("arm-kmc-eabi-gcc".to_owned()),
+            features: "+v7,+soft-float,+thumb2,-neon".to_string(),
+            relocation_model: RelocModel::Static,
+            disable_redzone: true,
+            max_atomic_width: Some(64),
+            ..base
+        },
+    }
+}

compiler/rustc_target/src/spec/armv7a_kmc_solid_asp3_eabihf.rs

@@ -0,0 +1,19 @@
+use super::{RelocModel, Target, TargetOptions};
+
+pub fn target() -> Target {
+    let base = super::solid_base::opts("asp3");
+    Target {
+        llvm_target: "armv7a-none-eabihf".to_string(),
+        pointer_width: 32,
+        data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".to_string(),
+        arch: "arm".to_string(),
+        options: TargetOptions {
+            linker: Some("arm-kmc-eabi-gcc".to_owned()),
+            features: "+v7,+vfp3,-d32,+thumb2,-neon".to_string(),
+            relocation_model: RelocModel::Static,
+            disable_redzone: true,
+            max_atomic_width: Some(64),
+            ..base
+        },
+    }
+}

compiler/rustc_target/src/spec/mod.rs

@@ -75,6 +75,7 @@ mod netbsd_base;
 mod openbsd_base;
 mod redox_base;
 mod solaris_base;
+mod solid_base;
 mod thumb_base;
 mod uefi_msvc_base;
 mod vxworks_base;
@@ -932,6 +933,10 @@ supported_targets! {
     ("powerpc-wrs-vxworks-spe", powerpc_wrs_vxworks_spe),
     ("powerpc64-wrs-vxworks", powerpc64_wrs_vxworks),
 
+    ("aarch64-kmc-solid_asp3", aarch64_kmc_solid_asp3),
+    ("armv7a-kmc-solid_asp3-eabi", armv7a_kmc_solid_asp3_eabi),
+    ("armv7a-kmc-solid_asp3-eabihf", armv7a_kmc_solid_asp3_eabihf),
+
     ("mipsel-sony-psp", mipsel_sony_psp),
     ("mipsel-unknown-none", mipsel_unknown_none),
     ("thumbv4t-none-eabi", thumbv4t_none_eabi),

compiler/rustc_target/src/spec/solid_base.rs

@@ -0,0 +1,12 @@
+use super::FramePointer;
+use crate::spec::TargetOptions;
+
+pub fn opts(kernel: &str) -> TargetOptions {
+    TargetOptions {
+        os: format!("solid_{}", kernel),
+        vendor: "kmc".to_string(),
+        frame_pointer: FramePointer::NonLeaf,
+        has_elf_tls: true,
+        ..Default::default()
+    }
+}

library/panic_abort/src/lib.rs

@@ -44,6 +44,7 @@ pub unsafe extern "C-unwind" fn __rust_start_panic(_payload: *mut &mut dyn BoxMe
                 libc::abort();
             }
         } else if #[cfg(any(target_os = "hermit",
+                            target_os = "solid_asp3",
                             all(target_vendor = "fortanix", target_env = "sgx")
         ))] {
             unsafe fn abort() -> ! {

library/panic_unwind/src/lib.rs

@@ -45,6 +45,7 @@ cfg_if::cfg_if! {
     } else if #[cfg(any(
         all(target_family = "windows", target_env = "gnu"),
         target_os = "psp",
+        target_os = "solid_asp3",
         all(target_family = "unix", not(target_os = "espidf")),
         all(target_vendor = "fortanix", target_env = "sgx"),
     ))] {

library/std/build.rs

@@ -27,6 +27,7 @@ fn main() {
         || target.contains("wasm32")
         || target.contains("asmjs")
         || target.contains("espidf")
+        || target.contains("solid")
     {
         // These platforms don't have any special requirements.
     } else {

library/std/src/os/mod.rs

@@ -138,6 +138,8 @@ pub mod redox;
 #[cfg(target_os = "solaris")]
 pub mod solaris;
 
+#[cfg(target_os = "solid_asp3")]
+pub mod solid;
 #[cfg(target_os = "vxworks")]
 pub mod vxworks;
 

library/std/src/os/solid/ffi.rs

@@ -0,0 +1,41 @@
+//! SOLID-specific extension to the primitives in the `std::ffi` module
+//!
+//! # Examples
+//!
+//! ```
+//! use std::ffi::OsString;
+//! use std::os::solid::ffi::OsStringExt;
+//!
+//! let bytes = b"foo".to_vec();
+//!
+//! // OsStringExt::from_vec
+//! let os_string = OsString::from_vec(bytes);
+//! assert_eq!(os_string.to_str(), Some("foo"));
+//!
+//! // OsStringExt::into_vec
+//! let bytes = os_string.into_vec();
+//! assert_eq!(bytes, b"foo");
+//! ```
+//!
+//! ```
+//! use std::ffi::OsStr;
+//! use std::os::solid::ffi::OsStrExt;
+//!
+//! let bytes = b"foo";
+//!
+//! // OsStrExt::from_bytes
+//! let os_str = OsStr::from_bytes(bytes);
+//! assert_eq!(os_str.to_str(), Some("foo"));
+//!
+//! // OsStrExt::as_bytes
+//! let bytes = os_str.as_bytes();
+//! assert_eq!(bytes, b"foo");
+//! ```
+
+#![stable(feature = "rust1", since = "1.0.0")]
+
+#[path = "../unix/ffi/os_str.rs"]
+mod os_str;
+
+#[stable(feature = "rust1", since = "1.0.0")]
+pub use self::os_str::{OsStrExt, OsStringExt};

library/std/src/os/solid/io.rs

@@ -0,0 +1,113 @@
+//! SOLID-specific extensions to general I/O primitives
+
+#![deny(unsafe_op_in_unsafe_fn)]
+#![unstable(feature = "solid_ext", issue = "none")]
+
+use crate::net;
+use crate::sys;
+use crate::sys_common::{self, AsInner, FromInner, IntoInner};
+
+/// Raw file descriptors.
+pub type RawFd = i32;
+
+/// A trait to extract the raw SOLID Sockets file descriptor from an underlying
+/// object.
+pub trait AsRawFd {
+    /// Extracts the raw file descriptor.
+    ///
+    /// This method does **not** pass ownership of the raw file descriptor
+    /// to the caller. The descriptor is only guaranteed to be valid while
+    /// the original object has not yet been destroyed.
+    fn as_raw_fd(&self) -> RawFd;
+}
+
+/// A trait to express the ability to construct an object from a raw file
+/// descriptor.
+pub trait FromRawFd {
+    /// Constructs a new instance of `Self` from the given raw file
+    /// descriptor.
+    ///
+    /// This function **consumes ownership** of the specified file
+    /// descriptor. The returned object will take responsibility for closing
+    /// it when the object goes out of scope.
+    ///
+    /// This function is also unsafe as the primitives currently returned
+    /// have the contract that they are the sole owner of the file
+    /// descriptor they are wrapping. Usage of this function could
+    /// accidentally allow violating this contract which can cause memory
+    /// unsafety in code that relies on it being true.
+    unsafe fn from_raw_fd(fd: RawFd) -> Self;
+}
+
+/// A trait to express the ability to consume an object and acquire ownership of
+/// its raw file descriptor.
+pub trait IntoRawFd {
+    /// Consumes this object, returning the raw underlying file descriptor.
+    ///
+    /// This function **transfers ownership** of the underlying file descriptor
+    /// to the caller. Callers are then the unique owners of the file descriptor
+    /// and must close the descriptor once it's no longer needed.
+    fn into_raw_fd(self) -> RawFd;
+}
+
+#[stable(feature = "raw_fd_reflexive_traits", since = "1.48.0")]
+impl AsRawFd for RawFd {
+    #[inline]
+    fn as_raw_fd(&self) -> RawFd {
+        *self
+    }
+}
+#[stable(feature = "raw_fd_reflexive_traits", since = "1.48.0")]
+impl IntoRawFd for RawFd {
+    #[inline]
+    fn into_raw_fd(self) -> RawFd {
+        self
+    }
+}
+#[stable(feature = "raw_fd_reflexive_traits", since = "1.48.0")]
+impl FromRawFd for RawFd {
+    #[inline]
+    unsafe fn from_raw_fd(fd: RawFd) -> RawFd {
+        fd
+    }
+}
+
+macro_rules! impl_as_raw_fd {
+    ($($t:ident)*) => {$(
+        #[stable(feature = "rust1", since = "1.0.0")]
+        impl AsRawFd for net::$t {
+            #[inline]
+            fn as_raw_fd(&self) -> RawFd {
+                *self.as_inner().socket().as_inner()
+            }
+        }
+    )*};
+}
+impl_as_raw_fd! { TcpStream TcpListener UdpSocket }
+
+macro_rules! impl_from_raw_fd {
+    ($($t:ident)*) => {$(
+        #[stable(feature = "from_raw_os", since = "1.1.0")]
+        impl FromRawFd for net::$t {
+            #[inline]
+            unsafe fn from_raw_fd(fd: RawFd) -> net::$t {
+                let socket = sys::net::Socket::from_inner(fd);
+                net::$t::from_inner(sys_common::net::$t::from_inner(socket))
+            }
+        }
+    )*};
+}
+impl_from_raw_fd! { TcpStream TcpListener UdpSocket }
+
+macro_rules! impl_into_raw_fd {
+    ($($t:ident)*) => {$(
+        #[stable(feature = "into_raw_os", since = "1.4.0")]
+        impl IntoRawFd for net::$t {
+            #[inline]
+            fn into_raw_fd(self) -> RawFd {
+                self.into_inner().into_socket().into_inner()
+            }
+        }
+    )*};
+}
+impl_into_raw_fd! { TcpStream TcpListener UdpSocket }

library/std/src/os/solid/mod.rs

@@ -0,0 +1,17 @@
+#![stable(feature = "rust1", since = "1.0.0")]
+
+pub mod ffi;
+pub mod io;
+
+/// A prelude for conveniently writing platform-specific code.
+///
+/// Includes all extension traits, and some important type definitions.
+#[stable(feature = "rust1", since = "1.0.0")]
+pub mod prelude {
+    #[doc(no_inline)]
+    #[stable(feature = "rust1", since = "1.0.0")]
+    pub use super::ffi::{OsStrExt, OsStringExt};
+    #[doc(no_inline)]
+    #[stable(feature = "rust1", since = "1.0.0")]
+    pub use super::io::{AsRawFd, FromRawFd, IntoRawFd, RawFd};
+}