[Bug sanitizer/64265] [5 Regression] r217669 broke tsan

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64265

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 34270
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34270&action=edit
gcc5-pr64265.patch

Untested patch to fix just the func entry issue.