[Bug runtime/33347] New: combat overenthusiastic gc during linking of sys/sdt.h .stapsdt.base section

[fche at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=33347

            Bug ID: 33347
           Summary: combat overenthusiastic gc during linking of sys/sdt.h
                    .stapsdt.base section
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: runtime
          Assignee: systemtap at sourceware dot org
          Reporter: fche at redhat dot com
  Target Milestone: ---

It has been reported that several linkers (other than gnu binutils) apply
garbage collection in such a way that deletes the sys/sdt.h .stapsdt.base
section, and renders the _.stapsdt.base symbol to the weak-0 (or incurs link
time errors).  Reports indicate that by adding the "R" section flag
(SHF_GNU_RETAIN), this is prevented.

https://github.com/rui314/mold/issues/1510
https://sourceware.org/PR27775
https://stackoverflow.com/questions/79604713/linking-error-in-static-linking-with-gc-sections-option

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