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std: enabling new netbsd (10) calls.

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Introducing a new config for this purpose as NetBSD 9 or 8 will be still around
for a good while. For now, we re finally enabling sys::unix::rand::getrandom.
This commit is contained in:
David Carlier 2023-12-08 12:00:37 +00:00
parent 9aa232ecc7
commit 114b0c799d
3 changed files with 10 additions and 5 deletions
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4
library/std/build.rs
View File

@ -7,7 +7,9 @@ fn main() {
let target_vendor =
env::var("CARGO_CFG_TARGET_VENDOR").expect("CARGO_CFG_TARGET_VENDOR was not set");
let target_env = env::var("CARGO_CFG_TARGET_ENV").expect("CARGO_CFG_TARGET_ENV was not set");
if target_os == "netbsd" && env::var("RUSTC_STD_NETBSD10").is_ok() {
println!("cargo:rustc-cfg=netbsd10");
}
if target_os == "linux"
|| target_os == "android"
|| target_os == "netbsd"

10
library/std/src/sys/pal/unix/rand.rs
View File

@ -62,7 +62,7 @@ mod imp {
unsafe { getrandom(buf.as_mut_ptr().cast(), buf.len(), libc::GRND_NONBLOCK) }
}
#[cfg(any(target_os = "espidf", target_os = "horizon", target_os = "freebsd"))]
#[cfg(any(target_os = "espidf", target_os = "horizon", target_os = "freebsd", netbsd10))]
fn getrandom(buf: &mut [u8]) -> libc::ssize_t {
unsafe { libc::getrandom(buf.as_mut_ptr().cast(), buf.len(), 0) }
}
@ -72,7 +72,8 @@ mod imp {
target_os = "android",
target_os = "espidf",
target_os = "horizon",
target_os = "freebsd"
target_os = "freebsd",
netbsd10
)))]
fn getrandom_fill_bytes(_buf: &mut [u8]) -> bool {
false
@ -83,7 +84,8 @@ mod imp {
target_os = "android",
target_os = "espidf",
target_os = "horizon",
target_os = "freebsd"
target_os = "freebsd",
netbsd10
))]
fn getrandom_fill_bytes(v: &mut [u8]) -> bool {
use crate::sync::atomic::{AtomicBool, Ordering};
@ -230,7 +232,7 @@ mod imp {
}
// FIXME: once the 10.x release becomes the minimum, this can be dropped for simplification.
#[cfg(target_os = "netbsd")]
#[cfg(all(target_os = "netbsd", not(netbsd10)))]
mod imp {
use crate::ptr;

1
src/bootstrap/src/lib.rs
View File

@ -86,6 +86,7 @@ const EXTRA_CHECK_CFGS: &[(Option<Mode>, &str, Option<&[&'static str]>)] = &[
(Some(Mode::Std), "no_global_oom_handling", None),
(Some(Mode::Std), "no_rc", None),
(Some(Mode::Std), "no_sync", None),
(Some(Mode::Std), "netbsd10", None),
(Some(Mode::Std), "backtrace_in_libstd", None),
/* Extra values not defined in the built-in targets yet, but used in std */
(Some(Mode::Std), "target_env", Some(&["libnx"])),