Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 124 insertions, 0 deletions

diff --git a/third_party/rust/rustix/src/param/auxv.rs b/third_party/rust/rustix/src/param/auxv.rs
new file mode 100644
index 0000000000..19f93dc041
--- /dev/null
+++ b/third_party/rust/rustix/src/param/auxv.rs
@@ -0,0 +1,87 @@
+use crate::backend;
+#[cfg(any(
+    linux_raw,
+    any(
+        all(target_os = "android", target_pointer_width = "64"),
+        target_os = "linux",
+    )
+))]
+use crate::ffi::CStr;
+
+/// `sysconf(_SC_PAGESIZE)`—Returns the process' page size.
+///
+/// Also known as `getpagesize`.
+///
+/// # References
+///  - [POSIX]
+///  - [Linux `sysconf`]
+///  - [Linux `getpagesize`]
+///
+/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/sysconf.html
+/// [Linux `sysconf`]: https://man7.org/linux/man-pages/man3/sysconf.3.html
+/// [Linux `getpagesize`]: https://man7.org/linux/man-pages/man2/getpagesize.2.html
+#[inline]
+#[doc(alias = "_SC_PAGESIZE")]
+#[doc(alias = "_SC_PAGE_SIZE")]
+#[doc(alias = "getpagesize")]
+pub fn page_size() -> usize {
+    backend::param::auxv::page_size()
+}
+
+/// `sysconf(_SC_CLK_TCK)`—Returns the process' clock ticks per second.
+///
+/// # References
+///  - [POSIX]
+///  - [Linux]
+///
+/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/sysconf.html
+/// [Linux]: https://man7.org/linux/man-pages/man3/sysconf.3.html
+#[cfg(not(any(target_os = "vita", target_os = "wasi")))]
+#[inline]
+#[doc(alias = "_SC_CLK_TCK")]
+pub fn clock_ticks_per_second() -> u64 {
+    backend::param::auxv::clock_ticks_per_second()
+}
+
+/// `(getauxval(AT_HWCAP), getauxval(AT_HWCAP2)`—Returns the Linux "hwcap"
+/// data.
+///
+/// Return the Linux `AT_HWCAP` and `AT_HWCAP2` values passed to the
+/// current process. Returns 0 for each value if it is not available.
+///
+/// # References
+///  - [Linux]
+///
+/// [Linux]: https://man7.org/linux/man-pages/man3/getauxval.3.html
+#[cfg(any(
+    linux_raw,
+    any(
+        all(target_os = "android", target_pointer_width = "64"),
+        target_os = "linux",
+    )
+))]
+#[inline]
+pub fn linux_hwcap() -> (usize, usize) {
+    backend::param::auxv::linux_hwcap()
+}
+
+/// `getauxval(AT_EXECFN)`—Returns the Linux "execfn" string.
+///
+/// Return the string that Linux has recorded as the filesystem path to the
+/// executable. Returns an empty string if the string is not available.
+///
+/// # References
+///  - [Linux]
+///
+/// [Linux]: https://man7.org/linux/man-pages/man3/getauxval.3.html
+#[cfg(any(
+    linux_raw,
+    any(
+        all(target_os = "android", target_pointer_width = "64"),
+        target_os = "linux",
+    )
+))]
+#[inline]
+pub fn linux_execfn() -> &'static CStr {
+    backend::param::auxv::linux_execfn()
+}
diff --git a/third_party/rust/rustix/src/param/init.rs b/third_party/rust/rustix/src/param/init.rs
new file mode 100644
index 0000000000..09d7c96bd6
--- /dev/null
+++ b/third_party/rust/rustix/src/param/init.rs
@@ -0,0 +1,23 @@
+//! rustix's `init` function.
+//!
+//! # Safety
+//!
+//! When "use-explicitly-provided-auxv" is enabled, the `init` function must be
+//! called before any other function in this module. It is unsafe because it
+//! operates on raw pointers.
+#![allow(unsafe_code)]
+
+use crate::backend;
+
+/// Initialize process-wide state.
+///
+/// # Safety
+///
+/// This must be passed a pointer to the original environment variable block
+/// set up by the OS at process startup, and it must be called before any
+/// other rustix functions are called.
+#[inline]
+#[doc(hidden)]
+pub unsafe fn init(envp: *mut *mut u8) {
+    backend::param::auxv::init(envp)
+}
diff --git a/third_party/rust/rustix/src/param/mod.rs b/third_party/rust/rustix/src/param/mod.rs
new file mode 100644
index 0000000000..f0de9d41c0
--- /dev/null
+++ b/third_party/rust/rustix/src/param/mod.rs
@@ -0,0 +1,14 @@
+//! Process parameters.
+//!
+//! These values correspond to `sysconf` in POSIX, and the auxv array in Linux.
+//! Despite the POSIX name “sysconf”, these aren't *system* configuration
+//! parameters; they're *process* configuration parameters, as they may differ
+//! between different processes on the same system.
+
+mod auxv;
+#[cfg(all(feature = "use-explicitly-provided-auxv", not(libc)))]
+mod init;
+
+pub use auxv::*;
+#[cfg(all(feature = "use-explicitly-provided-auxv", not(libc)))]
+pub use init::init;