Blake3 syscall (#17358)

programs/bpf/rust/sha/Cargo.toml

@@ -10,6 +10,7 @@ documentation = "https://docs.rs/solana-bpf-rust-sha"
 edition = "2018"
 
 [dependencies]
+blake3 = "0.3.7"
 solana-program = { path = "../../../../sdk/program", version = "=1.8.0" }
 
 [lib]

programs/bpf/rust/sha/src/lib.rs

@@ -19,12 +19,22 @@ fn test_keccak256_hasher() {
     assert_eq!(hashv(vals), hasher.result());
 }
 
+fn test_blake3_hasher() {
+    use solana_program::blake3::hashv;
+    let v0: &[u8] = b"Gaggablaghblagh!";
+    let v1: &[u8] = b"flurbos!";
+    let vals: &[&[u8]] = &[v0, v1];
+    let hash = blake3::hash(&[v0, v1].concat());
+    assert_eq!(hashv(vals).0, *hash.as_bytes());
+}
+
 #[no_mangle]
 pub extern "C" fn entrypoint(_input: *mut u8) -> u64 {
     msg!("sha");
 
     test_sha256_hasher();
     test_keccak256_hasher();
+    test_blake3_hasher();
 
     0
 }
@@ -39,5 +49,6 @@ mod test {
     fn test_sha() {
         test_sha256_hasher();
         test_keccak256_hasher();
+        test_blake3_hasher();
     }
 }