Add compilation error for zknh on non-RISC-V targets

RustCrypto · Aug 21, 2024 · 55538b5 · 55538b5
1 parent 14158e9
commit 55538b5
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/sha2/src/lib.rs b/sha2/src/lib.rs
@@ -11,6 +11,12 @@
     feature(riscv_ext_intrinsics)
 )]
 
+#[cfg(all(
+    any(sha2_backend = "riscv-zknh", sha2_backend = "riscv-zknh-compact"),
+    not(any(any(target_arch = "riscv32", target_arch = "riscv64")))
+))]
+compile_error!("The Zknh backends can be enabled only for RISC-V targets");
+
 pub use digest::{self, Digest};
 
 #[cfg(feature = "oid")]