Adding upstream version 124.0.1.upstream/124.0.1

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

7 files changed, 436 insertions, 0 deletions

diff --git a/third_party/rust/safemem/.cargo-checksum.json b/third_party/rust/safemem/.cargo-checksum.json
new file mode 100644
index 0000000000..11e964e5c2
--- /dev/null
+++ b/third_party/rust/safemem/.cargo-checksum.json
@@ -0,0 +1 @@
+{"files":{"Cargo.toml":"1a812b03bbe60da68e444ffc2b54b1c8696d3d9694a08784b80d6f3911762534","LICENSE-APACHE":"7cfd738c53d61c79f07e348f622bf7707c9084237054d37fbe07788a75f5881c","LICENSE-MIT":"64e1c5f067ee2d8c0ee8abd751e57275d4e97e4f7c05699bc23f5005a9c53043","README.md":"fcdfcdc818bac5fbccc5dfc25f8e2916226916c9f3bbd37b6646013bb34c5145","run_miri.sh":"3e9f2a577a268a97b93680a9ec3c218fc231c8fed3e155925c6d58ca89435d63","src/lib.rs":"cec30b7c5f141f490f30b5d08b4925904af47f518b049d69c2f8c48199d24a27"},"package":"ef703b7cb59335eae2eb93ceb664c0eb7ea6bf567079d843e09420219668e072"}
\ No newline at end of file
diff --git a/third_party/rust/safemem/Cargo.toml b/third_party/rust/safemem/Cargo.toml
new file mode 100644
index 0000000000..bfdc63f289
--- /dev/null
+++ b/third_party/rust/safemem/Cargo.toml
@@ -0,0 +1,28 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies
+#
+# If you believe there's an error in this file please file an
+# issue against the rust-lang/cargo repository. If you're
+# editing this file be aware that the upstream Cargo.toml
+# will likely look very different (and much more reasonable)
+
+[package]
+name = "safemem"
+version = "0.3.3"
+authors = ["Austin Bonander <austin.bonander@gmail.com>"]
+description = "Safe wrappers for memory-accessing functions, like `std::ptr::copy()`."
+documentation = "https://docs.rs/safemem"
+keywords = ["memset", "memmove", "copy"]
+categories = ["no-std"]
+license = "MIT/Apache-2.0"
+repository = "https://github.com/abonander/safemem"
+
+[dependencies]
+
+[features]
+default = ["std"]
+std = []
diff --git a/third_party/rust/safemem/LICENSE-APACHE b/third_party/rust/safemem/LICENSE-APACHE
new file mode 100644
index 0000000000..f47c941141
--- /dev/null
+++ b/third_party/rust/safemem/LICENSE-APACHE
@@ -0,0 +1,201 @@
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diff --git a/third_party/rust/safemem/LICENSE-MIT b/third_party/rust/safemem/LICENSE-MIT
new file mode 100644
index 0000000000..69bdcf51ce
--- /dev/null
+++ b/third_party/rust/safemem/LICENSE-MIT
@@ -0,0 +1,25 @@
+Copyright (c) 2016 The `multipart` Crate Developers

+

+Permission is hereby granted, free of charge, to any

+person obtaining a copy of this software and associated

+documentation files (the "Software"), to deal in the

+Software without restriction, including without

+limitation the rights to use, copy, modify, merge,

+publish, distribute, sublicense, and/or sell copies of

+the Software, and to permit persons to whom the Software

+is furnished to do so, subject to the following

+conditions:

+

+The above copyright notice and this permission notice

+shall be included in all copies or substantial portions

+of the Software.

+

+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF

+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED

+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A

+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT

+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION

+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR

+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

+DEALINGS IN THE SOFTWARE.

diff --git a/third_party/rust/safemem/README.md b/third_party/rust/safemem/README.md
new file mode 100644
index 0000000000..1ded7a626c
--- /dev/null
+++ b/third_party/rust/safemem/README.md
@@ -0,0 +1,27 @@
+# safemem ![Travis (.org)](https://img.shields.io/travis/abonander/safemem)

+Safe wrappers for `memmove`, `memset`, etc. in Rust

+

+##### Minimum Supported Rust Version: 1.19.0

+

+`no_std` Support

+----------------

+

+This crate has support for `no_std` which is controlled via default feature `std`. To use the crate

+in a `no_std` environment simply turn off default features.

+

+

+License

+-------

+

+Licensed under either of

+

+ * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)

+ * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)

+

+at your option.

+

+### Contribution

+

+Unless you explicitly state otherwise, any contribution intentionally submitted

+for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any

+additional terms or conditions.

diff --git a/third_party/rust/safemem/run_miri.sh b/third_party/rust/safemem/run_miri.sh
new file mode 100644
index 0000000000..20b96c37fb
--- /dev/null
+++ b/third_party/rust/safemem/run_miri.sh
@@ -0,0 +1,11 @@
+#!/bin/sh

+

+MIRI_NIGHTLY=nightly-$(curl -s https://rust-lang.github.io/rustup-components-history/x86_64-unknown-linux-gnu/miri)

+echo "Installing latest nightly with Miri: $MIRI_NIGHTLY"

+rustup set profile minimal

+rustup default "$MIRI_NIGHTLY"

+

+rustup component add miri

+cargo miri setup

+

+cargo miri test -- -- -Zunstable-options --exclude-should-panic

diff --git a/third_party/rust/safemem/src/lib.rs b/third_party/rust/safemem/src/lib.rs
new file mode 100644
index 0000000000..a30c933906
--- /dev/null
+++ b/third_party/rust/safemem/src/lib.rs
@@ -0,0 +1,143 @@
+//! Safe wrappers for memory-accessing functions like `std::ptr::copy()`.

+

+#![cfg_attr(not(feature = "std"), no_std)]

+

+#[cfg(not(feature = "std"))]

+extern crate core as std;

+use std::ptr;

+

+macro_rules! idx_check (

+    ($slice:expr, $idx:expr) => {

+        assert!($idx < $slice.len(),

+            concat!("`", stringify!($idx), "` ({}) out of bounds. Length: {}"),

+            $idx, $slice.len());

+    }

+);

+

+macro_rules! len_check (

+    ($slice:expr, $start:ident, $len:ident) => {

+        assert!(

+            $start.checked_add($len)

+                .expect(concat!("Overflow evaluating ", stringify!($start + $len)))

+                <= $slice.len(),

+            "Length {} starting at {} is out of bounds (slice len {}).", $len, $start, $slice.len()

+        )

+    }

+);

+

+/// Copy `len` elements from `src_idx` to `dest_idx`. Ranges may overlap.

+///

+/// Safe wrapper for `memmove()`/`std::ptr::copy()`.

+///

+/// ###Panics

+/// * If either `src_idx` or `dest_idx` are out of bounds, or if either of these plus `len` is out of

+/// bounds.

+/// * If `src_idx + len` or `dest_idx + len` overflows.

+pub fn copy_over<T: Copy>(slice: &mut [T], src_idx: usize, dest_idx: usize, len: usize) {

+    if slice.len() == 0 { return; }

+

+    idx_check!(slice, src_idx);

+    idx_check!(slice, dest_idx);

+    len_check!(slice, src_idx, len);

+    len_check!(slice, dest_idx, len);

+

+    // At any point a Rust reference exists, the compiler is free to do this.

+    // So we explicitely add it to be caught by miri.

+    #[cfg(miri)]

+    slice.iter().copied().for_each(drop);

+

+    let ptr = slice.as_mut_ptr();

+

+    unsafe {

+        ptr::copy(ptr.offset(src_idx as isize), ptr.offset(dest_idx as isize), len);

+    }

+}

+

+/// Safe wrapper for `std::ptr::write_bytes()`/`memset()`.

+pub fn write_bytes(slice: &mut [u8], byte: u8) {

+    unsafe {

+        ptr::write_bytes(slice.as_mut_ptr(), byte, slice.len());

+    }

+}

+

+/// Prepend `elems` to `vec`, resizing if necessary.

+///

+/// ### Panics

+///

+/// If `vec.len() + elems.len()` overflows.

+#[cfg(feature = "std")]

+pub fn prepend<T: Copy>(elems: &[T], vec: &mut Vec<T>) {

+    let elems_len = elems.len(); // `<= isize::MAX as usize`

+    if elems_len == 0 { return; }

+

+    let old_len = vec.len(); // `<= isize::MAX as usize`

+    if old_len == 0 {

+        // Prepend = append: delegate to Rust's stdlib implementation.

+        vec.extend_from_slice(elems);

+    } else {

+        // Our overflow check occurs here, no need to do it ourselves.

+        vec.reserve(elems_len);

+        let ptr = vec.as_mut_ptr();

+        unsafe {

+            // Move the old elements down to the end.

+            ptr::copy(

+                ptr,

+                ptr.offset(elems_len as isize),

+                old_len,

+            );

+            // Copy the input elements to the start

+            ptr::copy_nonoverlapping(

+                elems.as_ptr(),

+                ptr,

+                elems_len,

+            );

+            // Set the len *after* having initialized the elements.

+            vec.set_len(old_len + elems_len);

+        }

+    }

+}

+

+#[cfg(test)]

+mod tests {

+    use super::*;

+

+    #[test]

+    #[should_panic]

+    fn bounds_check() {

+        let mut arr = [0i32, 1, 2, 3, 4, 5];

+

+        copy_over(&mut arr, 2, 1, 7);

+    }

+

+    #[test]

+    fn copy_empty() {

+        let mut arr: [i32; 0] = [];

+

+        copy_over(&mut arr, 0, 0, 0);

+    }

+

+    #[test]

+    #[cfg(feature = "std")]

+    fn prepend_empty() {

+        let mut vec: Vec<i32> = vec![];

+        prepend(&[1, 2, 3], &mut vec);

+    }

+

+    #[test]

+    #[cfg(feature = "std")]

+    fn prepend_i32() {

+        let mut vec = vec![3, 4, 5];

+        prepend(&[1, 2], &mut vec);

+        assert_eq!(vec, &[1, 2, 3, 4, 5]);

+    }

+

+    /// Detect potential uninit values when running miri

+    #[test]

+    #[cfg(all(

+        feature = "std",

+        miri,

+    ))]

+    fn prepend_bool() {

+        prepend(&[true], &mut vec![false]);

+    }

+}