[Bug gold/24526] New: Generalize GC support for SHF_LINK_ORDER

[maskray at google dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=24526

            Bug ID: 24526
           Summary: Generalize GC support for SHF_LINK_ORDER
           Product: binutils
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gold
          Assignee: ccoutant at gmail dot com
          Reporter: maskray at google dot com
                CC: ian at airs dot com
  Target Milestone: ---

There was a discussion
https://groups.google.com/d/msg/generic-abi/_CbBM6T6WeM/9nNnwRNHAQAJ to extend
the semantics of SHF_LINK_ORDER to represent metadata sections. All parties
were in favor of the the wording:

... Furthermore, relocations from this section into the referenced section
should not be taken as evidence that the referenced section should be retained.

The patch https://sourceware.org/ml/binutils/2017-04/msg00000.html was posted,
but doesn't seem to have been applied yet.

Projects thay may benefit from it:
Linux kernel https://lwn.net/Articles/741617/
LLVM !associated metadata
https://llvm.org/docs/LangRef.html#associated-metadata

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