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authorStefan Boberg <[email protected]>2025-11-07 14:49:13 +0100
committerGitHub Enterprise <[email protected]>2025-11-07 14:49:13 +0100
commit24e43a913f29ac3b314354e8ce5175f135bcc64f (patch)
treeca442937ceeb63461012b33a4576e9835099f106 /thirdparty/blake3/src/ffi_neon.rs
parentget oplog attachments (#622) (diff)
downloadzen-24e43a913f29ac3b314354e8ce5175f135bcc64f.tar.xz
zen-24e43a913f29ac3b314354e8ce5175f135bcc64f.zip
switch to xmake for package management (#611)
This change removes our dependency on vcpkg for package management, in favour of bringing some code in-tree in the `thirdparty` folder as well as using the xmake build-in package management feature. For the latter, all the package definitions are maintained in the zen repo itself, in the `repo` folder. It should now also be easier to build the project as it will no longer depend on having the right version of vcpkg installed, which has been a common problem for new people coming in to the codebase. Now you should only need xmake to build. * Bumps xmake requirement on github runners to 2.9.9 to resolve an issue where xmake on Windows invokes cmake with `v144` toolchain which does not exist * BLAKE3 is now in-tree at `thirdparty/blake3` * cpr is now in-tree at `thirdparty/cpr` * cxxopts is now in-tree at `thirdparty/cxxopts` * fmt is now in-tree at `thirdparty/fmt` * robin-map is now in-tree at `thirdparty/robin-map` * ryml is now in-tree at `thirdparty/ryml` * sol2 is now in-tree at `thirdparty/sol2` * spdlog is now in-tree at `thirdparty/spdlog` * utfcpp is now in-tree at `thirdparty/utfcpp` * xmake package repo definitions is in `repo` * implemented support for sanitizers. ASAN is supported on windows, TSAN, UBSAN, MSAN etc are supported on Linux/MacOS though I have not yet tested it extensively on MacOS * the zencore encryption implementation also now supports using mbedTLS which is used on MacOS, though for now we still use openssl on Linux * crashpad * bumps libcurl to 8.11.0 (from 8.8.0) which should address a rare build upload bug
Diffstat (limited to 'thirdparty/blake3/src/ffi_neon.rs')
-rw-r--r--thirdparty/blake3/src/ffi_neon.rs82
1 files changed, 82 insertions, 0 deletions
diff --git a/thirdparty/blake3/src/ffi_neon.rs b/thirdparty/blake3/src/ffi_neon.rs
new file mode 100644
index 000000000..54d07a4de
--- /dev/null
+++ b/thirdparty/blake3/src/ffi_neon.rs
@@ -0,0 +1,82 @@
+use crate::{CVWords, IncrementCounter, BLOCK_LEN, OUT_LEN};
+
+// Unsafe because this may only be called on platforms supporting NEON.
+pub unsafe fn hash_many<const N: usize>(
+ inputs: &[&[u8; N]],
+ key: &CVWords,
+ counter: u64,
+ increment_counter: IncrementCounter,
+ flags: u8,
+ flags_start: u8,
+ flags_end: u8,
+ out: &mut [u8],
+) {
+ // The Rust hash_many implementations do bounds checking on the `out`
+ // array, but the C implementations don't. Even though this is an unsafe
+ // function, assert the bounds here.
+ assert!(out.len() >= inputs.len() * OUT_LEN);
+ ffi::blake3_hash_many_neon(
+ inputs.as_ptr() as *const *const u8,
+ inputs.len(),
+ N / BLOCK_LEN,
+ key.as_ptr(),
+ counter,
+ increment_counter.yes(),
+ flags,
+ flags_start,
+ flags_end,
+ out.as_mut_ptr(),
+ )
+}
+
+// blake3_neon.c normally depends on blake3_portable.c, because the NEON
+// implementation only provides 4x compression, and it relies on the portable
+// implementation for 1x compression. However, we expose the portable Rust
+// implementation here instead, to avoid linking in unnecessary code.
+#[no_mangle]
+pub extern "C" fn blake3_compress_in_place_portable(
+ cv: *mut u32,
+ block: *const u8,
+ block_len: u8,
+ counter: u64,
+ flags: u8,
+) {
+ unsafe {
+ crate::portable::compress_in_place(
+ &mut *(cv as *mut [u32; 8]),
+ &*(block as *const [u8; 64]),
+ block_len,
+ counter,
+ flags,
+ )
+ }
+}
+
+pub mod ffi {
+ extern "C" {
+ pub fn blake3_hash_many_neon(
+ inputs: *const *const u8,
+ num_inputs: usize,
+ blocks: usize,
+ key: *const u32,
+ counter: u64,
+ increment_counter: bool,
+ flags: u8,
+ flags_start: u8,
+ flags_end: u8,
+ out: *mut u8,
+ );
+ }
+}
+
+#[cfg(test)]
+mod test {
+ use super::*;
+
+ #[test]
+ fn test_hash_many() {
+ // This entire file is gated on feature="neon", so NEON support is
+ // assumed here.
+ crate::test::test_hash_many_fn(hash_many, hash_many);
+ }
+}