[Bug other/116246] New: obstack could use ASAN and Valgrind annotations

[sjames at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116246

            Bug ID: 116246
           Summary: obstack could use ASAN and Valgrind annotations
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: sjames at gcc dot gnu.org
  Target Milestone: ---

I think obstack may benefit from asan and valgrind annotations (see PR116235).

The machinery for this is a bit of a pain because I don't think binutils has
any of the valgrind infra and libiberty is shared.

Note that gnulib obstack does not have these either. I did bring it up in
general at https://lists.gnu.org/archive/html/bug-gnulib/2023-11/msg00104.html.