Add alwayslink to cuda_binary and cuda_test macros

cuda/private/macros/cuda_binary.bzl

@@ -1,7 +1,13 @@
 load("//cuda/private:rules/cuda_library.bzl", _cuda_library = "cuda_library")
 
-def cuda_binary(name, **attrs):
-    """Wrapper to ensure the binary is compiled with the CUDA compiler."""
+def cuda_binary(name, alwayslink=True, **attrs):
+    """A macro wraps cuda_library and cc_binary to ensure the binary is compiled with the CUDA compiler.
+
+    Args:
+        name: A unique name for this target (cc_binary).
+        alwayslink: pass to the hidden cuda_library target.
+        **attrs: attrs of cc_binary and cuda_library.
+    """
     cuda_library_only_attrs = ["deps", "srcs", "hdrs"]
 
     # https://bazel.build/reference/be/common-definitions?hl=en#common-attributes-binaries
@@ -11,6 +17,7 @@ def cuda_binary(name, **attrs):
 
     _cuda_library(
         name = cuda_library_name,
+        alwayslink = alwayslink,
         **{k: v for k, v in attrs.items() if k not in cc_binary_only_attrs}
     )
 

cuda/private/macros/cuda_test.bzl

@@ -1,7 +1,13 @@
 load("//cuda/private:rules/cuda_library.bzl", _cuda_library = "cuda_library")
 
-def cuda_test(name, **attrs):
-    """Wrapper to ensure the test is compiled with the CUDA compiler."""
+def cuda_test(name, alwayslink=True, **attrs):
+    """A macro wraps cuda_library and cc_test to ensure the test is compiled with the CUDA compiler.
+
+    Args:
+        name: A unique name for this target (cc_test).
+        alwayslink: pass to the hidden cuda_library target.
+        **attrs: attrs of cc_test and cuda_library.
+    """
     cuda_library_only_attrs = ["deps", "srcs", "hdrs"]
 
     # https://bazel.build/reference/be/common-definitions?hl=en#common-attributes-tests
@@ -11,6 +17,7 @@ def cuda_test(name, **attrs):
 
     _cuda_library(
         name = cuda_library_name,
+        alwayslink = alwayslink,
         testonly = True,
         **{k: v for k, v in attrs.items() if k not in cc_test_only_attrs}
     )