Trusty: Fix build for anonymous pipes and std::sys::process

PRs rust-lang#136842 (Add libstd support for Trusty targets), rust-lang#137793 (Stablize
anonymous pipe), and rust-lang#136929 (std: move process implementations to
`sys`) merged around the same time, so update Trusty to take them into
account.

Author: thaliaarchi

std/src/os/fd/owned.rs

@@ -15,9 +15,8 @@ use crate::mem::ManuallyDrop;
     target_os = "trusty"
 )))]
 use crate::sys::cvt;
-use crate::sys_common::FromInner;
 #[cfg(not(target_os = "trusty"))]
-use crate::sys_common::{AsInner, IntoInner};
+use crate::sys_common::{AsInner, FromInner, IntoInner};
 use crate::{fmt, io};
 
 type ValidRawFd = core::num::niche_types::NotAllOnes<RawFd>;
@@ -507,41 +506,47 @@ impl<'a> AsFd for io::StderrLock<'a> {
 }
 
 #[stable(feature = "anonymous_pipe", since = "CURRENT_RUSTC_VERSION")]
+#[cfg(not(target_os = "trusty"))]
 impl AsFd for io::PipeReader {
     fn as_fd(&self) -> BorrowedFd<'_> {
         self.0.as_fd()
     }
 }
 
 #[stable(feature = "anonymous_pipe", since = "CURRENT_RUSTC_VERSION")]
+#[cfg(not(target_os = "trusty"))]
 impl From<io::PipeReader> for OwnedFd {
     fn from(pipe: io::PipeReader) -> Self {
         pipe.0.into_inner()
     }
 }
 
 #[stable(feature = "anonymous_pipe", since = "CURRENT_RUSTC_VERSION")]
+#[cfg(not(target_os = "trusty"))]
 impl AsFd for io::PipeWriter {
     fn as_fd(&self) -> BorrowedFd<'_> {
         self.0.as_fd()
     }
 }
 
 #[stable(feature = "anonymous_pipe", since = "CURRENT_RUSTC_VERSION")]
+#[cfg(not(target_os = "trusty"))]
 impl From<io::PipeWriter> for OwnedFd {
     fn from(pipe: io::PipeWriter) -> Self {
         pipe.0.into_inner()
     }
 }
 
 #[stable(feature = "anonymous_pipe", since = "CURRENT_RUSTC_VERSION")]
+#[cfg(not(target_os = "trusty"))]
 impl From<OwnedFd> for io::PipeReader {
     fn from(owned_fd: OwnedFd) -> Self {
         Self(FromInner::from_inner(owned_fd))
     }
 }
 
 #[stable(feature = "anonymous_pipe", since = "CURRENT_RUSTC_VERSION")]
+#[cfg(not(target_os = "trusty"))]
 impl From<OwnedFd> for io::PipeWriter {
     fn from(owned_fd: OwnedFd) -> Self {
         Self(FromInner::from_inner(owned_fd))

std/src/os/fd/raw.rs

@@ -18,9 +18,8 @@ use crate::os::unix::io::AsFd;
 use crate::os::unix::io::OwnedFd;
 #[cfg(target_os = "wasi")]
 use crate::os::wasi::io::OwnedFd;
-use crate::sys_common::FromInner;
 #[cfg(not(target_os = "trusty"))]
-use crate::sys_common::{AsInner, IntoInner};
+use crate::sys_common::{AsInner, FromInner, IntoInner};
 
 /// Raw file descriptors.
 #[stable(feature = "rust1", since = "1.0.0")]
@@ -287,41 +286,47 @@ impl<T: AsRawFd> AsRawFd for Box<T> {
 }
 
 #[stable(feature = "anonymous_pipe", since = "CURRENT_RUSTC_VERSION")]
+#[cfg(not(target_os = "trusty"))]
 impl AsRawFd for io::PipeReader {
     fn as_raw_fd(&self) -> RawFd {
         self.0.as_raw_fd()
     }
 }
 
 #[stable(feature = "anonymous_pipe", since = "CURRENT_RUSTC_VERSION")]
+#[cfg(not(target_os = "trusty"))]
 impl FromRawFd for io::PipeReader {
     unsafe fn from_raw_fd(raw_fd: RawFd) -> Self {
         Self::from_inner(unsafe { FromRawFd::from_raw_fd(raw_fd) })
     }
 }
 
 #[stable(feature = "anonymous_pipe", since = "CURRENT_RUSTC_VERSION")]
+#[cfg(not(target_os = "trusty"))]
 impl IntoRawFd for io::PipeReader {
     fn into_raw_fd(self) -> RawFd {
         self.0.into_raw_fd()
     }
 }
 
 #[stable(feature = "anonymous_pipe", since = "CURRENT_RUSTC_VERSION")]
+#[cfg(not(target_os = "trusty"))]
 impl AsRawFd for io::PipeWriter {
     fn as_raw_fd(&self) -> RawFd {
         self.0.as_raw_fd()
     }
 }
 
 #[stable(feature = "anonymous_pipe", since = "CURRENT_RUSTC_VERSION")]
+#[cfg(not(target_os = "trusty"))]
 impl FromRawFd for io::PipeWriter {
     unsafe fn from_raw_fd(raw_fd: RawFd) -> Self {
         Self::from_inner(unsafe { FromRawFd::from_raw_fd(raw_fd) })
     }
 }
 
 #[stable(feature = "anonymous_pipe", since = "CURRENT_RUSTC_VERSION")]
+#[cfg(not(target_os = "trusty"))]
 impl IntoRawFd for io::PipeWriter {
     fn into_raw_fd(self) -> RawFd {
         self.0.into_raw_fd()

std/src/sys/pal/trusty/mod.rs

@@ -11,8 +11,6 @@ pub mod env;
 pub mod os;
 #[path = "../unsupported/pipe.rs"]
 pub mod pipe;
-#[path = "../unsupported/process.rs"]
-pub mod process;
 #[path = "../unsupported/thread.rs"]
 pub mod thread;
 #[path = "../unsupported/time.rs"]