Update toolchain variable definitions to allow static linking

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Update toolchain variable definitions to allow static linking

Updates the rules-based-toolchain variable definitions to reflect the how the variables are used in Bazel's CppActionConfigs.java Java implementation, particularly with respect to static linking.
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PiperOrigin-RevId: 647301605
Change-Id: I7ff87a75f9654d70ea160282ba66e99363c79ce5

cc/toolchains/variables/BUILD

@@ -156,18 +156,72 @@ cc_variable(
 
 cc_variable(
     name = "libraries_to_link",
-    actions = ["//cc/toolchains/actions:link_actions"],
+    actions = [
+        "//cc/toolchains/actions:cpp_link_static_library",
+        "//cc/toolchains/actions:link_actions",
+    ],
     type = types.option(types.list(types.struct(
+        name = types.string,
+        is_whole_archive = types.bool,
+        object_files = types.list(types.file),
+        path = types.string,
         shared_libraries = types.list(types.struct(
             name = types.string,
             is_whole_archive = types.bool,
             object_files = types.list(types.file),
             path = types.file,
             type = types.string,
         )),
+        type = types.string,
     ))),
 )
 
+cc_variable(
+    name = "libraries_to_link.type",
+    actions = [
+        "//cc/toolchains/actions:cpp_link_static_library",
+        "//cc/toolchains/actions:link_actions",
+    ],
+    # See :libraries_to_link.
+    type = types.string,
+)
+
+cc_variable(
+    name = "libraries_to_link.name",
+    actions = [
+        "//cc/toolchains/actions:cpp_link_static_library",
+        "//cc/toolchains/actions:link_actions",
+    ],
+    # See :libraries_to_link.
+    type = types.string,
+)
+
+cc_variable(
+    name = "libraries_to_link.path",
+    actions = [
+        "//cc/toolchains/actions:cpp_link_static_library",
+        "//cc/toolchains/actions:link_actions",
+    ],
+    # See :libraries_to_link.
+    type = types.string,
+)
+
+cc_variable(
+    name = "libraries_to_link.object_files",
+    actions = [
+        "//cc/toolchains/actions:cpp_link_static_library",
+        "//cc/toolchains/actions:link_actions",
+    ],
+    # See :libraries_to_link.
+    type = types.list(types.file),
+)
+
+cc_variable(
+    name = "libraries_to_link.is_whole_archive",
+    actions = ["//cc/toolchains/actions:link_actions"],
+    type = types.bool,
+)
+
 cc_variable(
     name = "libraries_to_link.shared_libraries",
     actions = ["//cc/toolchains/actions:link_actions"],
@@ -213,8 +267,11 @@ cc_variable(
 
 cc_variable(
     name = "linker_param_file",
-    actions = ["//cc/toolchains/actions:link_actions"],
-    type = types.file,
+    actions = [
+        "//cc/toolchains/actions:cpp_link_static_library",
+        "//cc/toolchains/actions:link_actions",
+    ],
+    type = types.option(types.file),
 )
 
 cc_variable(
@@ -255,7 +312,10 @@ cc_variable(
 
 cc_variable(
     name = "output_execpath",
-    actions = ["//cc/toolchains/actions:link_actions"],
+    actions = [
+        "//cc/toolchains/actions:cpp_link_static_library",
+        "//cc/toolchains/actions:link_actions",
+    ],
     type = types.option(types.directory),
 )