[Bug 197341] [exp-run] ld: emit symbols for orphaned ELF sections whose names contain a period

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197341

            Bug ID: 197341
           Summary: [exp-run] ld: emit symbols for orphaned ELF sections
                    whose names contain a period
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Ports Framework
          Assignee: freebsd-ports-bugs at FreeBSD.org
          Reporter: markj at FreeBSD.org
                CC: portmgr at FreeBSD.org

Created attachment 152570
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=152570&action=edit
proposed patch

I'd like to make a small enhancement to ld(1) to have it generate symbols for
the start and end of ELF sections whose names contain a period. At the moment,
ld(1) only does this if the section's name is representable in C, but we'd like
to use this feature for a DTrace-related section named ".SUNW_dof".

I highly doubt that this change will affect ports in any way since ld(1) only
emits these symbols for orphaned sections, but I'd like to request an exp-run
just to be sure.

This post contains some context on the motivation for the change:
https://lists.freebsd.org/pipermail/freebsd-dtrace/2015-January/000342.html

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