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fix building libstd for Miri on macOS

This commit is contained in:
Ralf Jung 2020-09-28 10:32:05 +02:00
parent 6369a98ebd
commit dc8414b607
1 changed files with 50 additions and 49 deletions
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23
library/std/src/sys/unix/mod.rs
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@ -93,17 +93,20 @@ pub fn init() {
reset_sigpipe();
}
// In the case when all file descriptors are open, the poll has been
// observed to perform better than fcntl (on GNU/Linux).
#[cfg(not(any(
miri,
cfg_if::cfg_if! {
if #[cfg(miri)] {
// The standard fds are always available in Miri.
unsafe fn sanitize_standard_fds() {}
} else if #[cfg(not(any(
target_os = "emscripten",
target_os = "fuchsia",
// The poll on Darwin doesn't set POLLNVAL for closed fds.
target_os = "macos",
target_os = "ios",
target_os = "redox",
)))]
)))] {
// In the case when all file descriptors are open, the poll has been
// observed to perform better than fcntl (on GNU/Linux).
unsafe fn sanitize_standard_fds() {
use crate::sys::os::errno;
let pfds: &mut [_] = &mut [
@ -130,7 +133,7 @@ pub fn init() {
}
}
}
#[cfg(any(target_os = "macos", target_os = "ios", target_os = "redox"))]
} else if #[cfg(any(target_os = "macos", target_os = "ios", target_os = "redox"))] {
unsafe fn sanitize_standard_fds() {
use crate::sys::os::errno;
for fd in 0..3 {
@ -141,12 +144,10 @@ pub fn init() {
}
}
}
#[cfg(any(
// The standard fds are always available in Miri.
miri,
target_os = "emscripten",
target_os = "fuchsia"))]
} else {
unsafe fn sanitize_standard_fds() {}
}
}
#[cfg(not(any(target_os = "emscripten", target_os = "fuchsia")))]
unsafe fn reset_sigpipe() {