diff --git a/hash.c b/hash.c
index 97fd473607..553f2008ea 100644
--- a/hash.c
+++ b/hash.c
@@ -248,6 +248,41 @@ const struct git_hash_algo *hash_algo_ptr_by_number(uint32_t algo)
 	return &hash_algos[algo];
 }
 
+struct git_hash_ctx *git_hash_alloc(void)
+{
+	return xmalloc(sizeof(struct git_hash_ctx));
+}
+
+void git_hash_free(struct git_hash_ctx *ctx)
+{
+	free(ctx);
+}
+
+void git_hash_init(struct git_hash_ctx *ctx, const struct git_hash_algo *algop)
+{
+	algop->init_fn(ctx);
+}
+
+void git_hash_clone(struct git_hash_ctx *dst, const struct git_hash_ctx *src)
+{
+	src->algop->clone_fn(dst, src);
+}
+
+void git_hash_update(struct git_hash_ctx *ctx, const void *in, size_t len)
+{
+	ctx->algop->update_fn(ctx, in, len);
+}
+
+void git_hash_final(unsigned char *hash, struct git_hash_ctx *ctx)
+{
+	ctx->algop->final_fn(hash, ctx);
+}
+
+void git_hash_final_oid(struct object_id *oid, struct git_hash_ctx *ctx)
+{
+	ctx->algop->final_oid_fn(oid, ctx);
+}
+
 uint32_t hash_algo_by_name(const char *name)
 {
 	if (!name)
diff --git a/hash.h b/hash.h
index 709d7585a5..d51efce1d3 100644
--- a/hash.h
+++ b/hash.h
@@ -320,27 +320,14 @@ struct git_hash_algo {
 };
 extern const struct git_hash_algo hash_algos[GIT_HASH_NALGOS];
 
-static inline void git_hash_clone(struct git_hash_ctx *dst, const struct git_hash_ctx *src)
-{
-	src->algop->clone_fn(dst, src);
-}
-
-static inline void git_hash_update(struct git_hash_ctx *ctx, const void *in, size_t len)
-{
-	ctx->algop->update_fn(ctx, in, len);
-}
-
-static inline void git_hash_final(unsigned char *hash, struct git_hash_ctx *ctx)
-{
-	ctx->algop->final_fn(hash, ctx);
-}
-
-static inline void git_hash_final_oid(struct object_id *oid, struct git_hash_ctx *ctx)
-{
-	ctx->algop->final_oid_fn(oid, ctx);
-}
-
+void git_hash_init(struct git_hash_ctx *ctx, const struct git_hash_algo *algop);
+void git_hash_clone(struct git_hash_ctx *dst, const struct git_hash_ctx *src);
+void git_hash_update(struct git_hash_ctx *ctx, const void *in, size_t len);
+void git_hash_final(unsigned char *hash, struct git_hash_ctx *ctx);
+void git_hash_final_oid(struct object_id *oid, struct git_hash_ctx *ctx);
 const struct git_hash_algo *hash_algo_ptr_by_number(uint32_t algo);
+struct git_hash_ctx *git_hash_alloc(void);
+void git_hash_free(struct git_hash_ctx *ctx);
 /*
  * Return a GIT_HASH_* constant based on the name.  Returns GIT_HASH_UNKNOWN if
  * the name doesn't match a known algorithm.