https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65524
--- Comment #2 from yuta tomino <demoonlit at panathenaia dot halfmoon.jp> --- Created attachment 35115 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35115&action=edit example I found the way of reproducing. A tiny change of a-tags.ads is necessary. Insert "is null" into Ada.Tags.Register_Tag to suppress the elaboration. (Is there a pragma or restriction for this purpose?) Note, Unregister_Tag is unrelated. And, make a package as Pure or Preelaborate. Add a tagged type. So the package would have _finalize_spec without _elabs. (The direct cause of this case is the asymmetry that _elabs is not generated if Register_Tag is null, against that, _fialize_spec is always generated even if Unregister_Tag is null. Register/Unregister_XXX are sometimes suppressed in parts of customized runtimes. My customized runtime satisfies the conditions about this time. However, the way is only example for reproducing. I think another approach is possibility because Build_Finalizer in exp_ch7.adb is very complex...) And then, prepare a main subprogram using the package. Compile and gnatbind. See b~main.adb. The log of compiling the attached example: % gnatmake -a -gnatp -g main gnatbind -x main.ali gnatlink main.ali -g b~main.adb:31:10: "E81" is undefined (more references follow) b~main.adb:34:07: "E05" is undefined (more references follow) gnatmake: *** link failed. By the way, sorry, I realized that my first patch is not proper fix. For multiple-elaboration, an elaboration-counter should be generated and incremented in adainit when a _finalize_spec/body is existing, even if _elabs is not existing. Thanks.
