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WASI fixing unsafe_op_in_unsafe_fn for std::{os, sys}
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g0djan committed Aug 5, 2024
1 parent 83dcdb3 commit 8a61674
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Showing 14 changed files with 24 additions and 18 deletions.
1 change: 0 additions & 1 deletion library/std/src/os/wasi/fs.rs
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Expand Up @@ -2,7 +2,6 @@
//!
//! [`std::fs`]: crate::fs

#![deny(unsafe_op_in_unsafe_fn)]
#![unstable(feature = "wasi_ext", issue = "71213")]

// Used for `File::read` on intra-doc links
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2 changes: 1 addition & 1 deletion library/std/src/os/wasi/mod.rs
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Expand Up @@ -30,7 +30,7 @@

#![cfg_attr(not(target_env = "p2"), stable(feature = "rust1", since = "1.0.0"))]
#![cfg_attr(target_env = "p2", unstable(feature = "wasip2", issue = "none"))]
#![deny(unsafe_op_in_unsafe_fn)]
#![forbid(unsafe_op_in_unsafe_fn)]
#![doc(cfg(target_os = "wasi"))]

pub mod ffi;
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1 change: 1 addition & 0 deletions library/std/src/os/wasip2/mod.rs
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Expand Up @@ -2,4 +2,5 @@
//!
//! This module is currently empty, but will be filled over time as wasi-libc support for WASI Preview 2 is stabilized.

#![forbid(unsafe_op_in_unsafe_fn)]
#![stable(feature = "raw_ext", since = "1.1.0")]
2 changes: 1 addition & 1 deletion library/std/src/sys/pal/wasi/args.rs
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@@ -1,4 +1,4 @@
#![deny(unsafe_op_in_unsafe_fn)]
#![forbid(unsafe_op_in_unsafe_fn)]

use crate::ffi::{CStr, OsStr, OsString};
use crate::os::wasi::ffi::OsStrExt;
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2 changes: 2 additions & 0 deletions library/std/src/sys/pal/wasi/env.rs
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@@ -1,3 +1,5 @@
#![forbid(unsafe_op_in_unsafe_fn)]

pub mod os {
pub const FAMILY: &str = "";
pub const OS: &str = "";
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2 changes: 1 addition & 1 deletion library/std/src/sys/pal/wasi/fd.rs
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@@ -1,4 +1,4 @@
#![deny(unsafe_op_in_unsafe_fn)]
#![forbid(unsafe_op_in_unsafe_fn)]
#![allow(dead_code)]

use super::err2io;
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2 changes: 1 addition & 1 deletion library/std/src/sys/pal/wasi/fs.rs
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@@ -1,4 +1,4 @@
#![deny(unsafe_op_in_unsafe_fn)]
#![forbid(unsafe_op_in_unsafe_fn)]

use super::fd::WasiFd;
use crate::ffi::{CStr, OsStr, OsString};
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2 changes: 2 additions & 0 deletions library/std/src/sys/pal/wasi/helpers.rs
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@@ -1,3 +1,5 @@
#![forbid(unsafe_op_in_unsafe_fn)]

use crate::{io as std_io, mem};

#[inline]
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2 changes: 1 addition & 1 deletion library/std/src/sys/pal/wasi/io.rs
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@@ -1,4 +1,4 @@
#![deny(unsafe_op_in_unsafe_fn)]
#![forbid(unsafe_op_in_unsafe_fn)]

use crate::marker::PhantomData;
use crate::os::fd::{AsFd, AsRawFd};
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2 changes: 1 addition & 1 deletion library/std/src/sys/pal/wasi/net.rs
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@@ -1,4 +1,4 @@
#![deny(unsafe_op_in_unsafe_fn)]
#![forbid(unsafe_op_in_unsafe_fn)]

use super::err2io;
use super::fd::WasiFd;
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2 changes: 1 addition & 1 deletion library/std/src/sys/pal/wasi/os.rs
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@@ -1,4 +1,4 @@
#![deny(unsafe_op_in_unsafe_fn)]
#![forbid(unsafe_op_in_unsafe_fn)]

use core::slice::memchr;

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2 changes: 1 addition & 1 deletion library/std/src/sys/pal/wasi/stdio.rs
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@@ -1,4 +1,4 @@
#![deny(unsafe_op_in_unsafe_fn)]
#![forbid(unsafe_op_in_unsafe_fn)]

use super::fd::WasiFd;
use crate::io::{self, IoSlice, IoSliceMut};
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18 changes: 10 additions & 8 deletions library/std/src/sys/pal/wasi/thread.rs
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@@ -1,3 +1,5 @@
#![forbid(unsafe_op_in_unsafe_fn)]

use crate::ffi::CStr;
use crate::num::NonZero;
use crate::sys::unsupported;
Expand Down Expand Up @@ -73,13 +75,13 @@ impl Thread {
if #[cfg(target_feature = "atomics")] {
pub unsafe fn new(stack: usize, p: Box<dyn FnOnce()>) -> io::Result<Thread> {
let p = Box::into_raw(Box::new(p));
let mut native: libc::pthread_t = mem::zeroed();
let mut attr: libc::pthread_attr_t = mem::zeroed();
assert_eq!(libc::pthread_attr_init(&mut attr), 0);
let mut native: libc::pthread_t = unsafe { mem::zeroed() };
let mut attr: libc::pthread_attr_t = unsafe { mem::zeroed() };
assert_eq!(unsafe { libc::pthread_attr_init(&mut attr) }, 0);

let stack_size = cmp::max(stack, DEFAULT_MIN_STACK_SIZE);

match libc::pthread_attr_setstacksize(&mut attr, stack_size) {
match unsafe { libc::pthread_attr_setstacksize(&mut attr, stack_size) } {
0 => {}
n => {
assert_eq!(n, libc::EINVAL);
Expand All @@ -90,20 +92,20 @@ impl Thread {
let page_size = os::page_size();
let stack_size =
(stack_size + page_size - 1) & (-(page_size as isize - 1) as usize - 1);
assert_eq!(libc::pthread_attr_setstacksize(&mut attr, stack_size), 0);
assert_eq!(unsafe { libc::pthread_attr_setstacksize(&mut attr, stack_size) }, 0);
}
};

let ret = libc::pthread_create(&mut native, &attr, thread_start, p as *mut _);
let ret = unsafe { libc::pthread_create(&mut native, &attr, thread_start, p as *mut _) };
// Note: if the thread creation fails and this assert fails, then p will
// be leaked. However, an alternative design could cause double-free
// which is clearly worse.
assert_eq!(libc::pthread_attr_destroy(&mut attr), 0);
assert_eq!(unsafe {libc::pthread_attr_destroy(&mut attr) }, 0);

return if ret != 0 {
// The thread failed to start and as a result p was not consumed. Therefore, it is
// safe to reconstruct the box so that it gets deallocated.
drop(Box::from_raw(p));
unsafe { drop(Box::from_raw(p)); }
Err(io::Error::from_raw_os_error(ret))
} else {
Ok(Thread { id: native })
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2 changes: 1 addition & 1 deletion library/std/src/sys/pal/wasi/time.rs
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@@ -1,4 +1,4 @@
#![deny(unsafe_op_in_unsafe_fn)]
#![forbid(unsafe_op_in_unsafe_fn)]

use crate::time::Duration;

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