Move build stamping to final step

Summary: This moves the build stamping that will guarantee invalidation of all steps that use the resulting artifact to be the final action in the dist_lto action

Reviewed By: christycylee

Differential Revision: D68034482

fbshipit-source-id: 225ddcb3a479653075708e681a903094acb6ddd7

cxx/dist_lto/dist_lto.bzl

@@ -627,8 +627,6 @@ def cxx_gnu_dist_link(
     )
 
     final_output = output if not (executable_link and cxx_use_bolt(ctx)) else bolt(ctx, output, external_debug_info, identifier)
-    final_output = stamp_build_info(ctx, final_output) if executable_link else final_output
-
     dwp_output = ctx.actions.declare_output(output.short_path.removesuffix("-wrapper") + ".dwp") if generate_dwp else None
 
     if generate_dwp:
@@ -652,6 +650,8 @@ def cxx_gnu_dist_link(
         strip_args = opts.strip_args_factory(ctx) if opts.strip_args_factory else cmd_args()
         final_output = strip_object(ctx, cxx_toolchain, final_output, strip_args, category_suffix)
 
+    final_output = stamp_build_info(ctx, final_output) if executable_link else final_output
+
     return LinkedObject(
         output = final_output,
         unstripped_output = unstripped_output,

cxx/link.bzl

@@ -332,7 +332,6 @@ def cxx_link_into(
         output = strip_object(ctx, cxx_toolchain_info, output, strip_args, opts.category_suffix)
 
     final_output = output if not (is_result_executable and cxx_use_bolt(ctx)) else bolt(ctx, output, external_debug_info, opts.identifier)
-    final_output = stamp_build_info(ctx, final_output) if is_result_executable else final_output
 
     dwp_artifact = None
     if should_generate_dwp:
@@ -359,6 +358,8 @@ def cxx_link_into(
             from_exe = not dwp_from_dwo,
         )
 
+    final_output = stamp_build_info(ctx, final_output) if is_result_executable else final_output
+
     linked_object = LinkedObject(
         output = final_output,
         link_args = opts.links,