[Bug gold/23535] New: gold needs to produce two PT_NOTE segments with ELFCLASS64

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=23535

            Bug ID: 23535
           Summary: gold needs to produce two PT_NOTE segments with
                    ELFCLASS64
           Product: binutils
           Version: 2.31
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gold
          Assignee: ccoutant at gmail dot com
          Reporter: fweimer at redhat dot com
                CC: ian at airs dot com
  Target Milestone: ---
             Flags: security-

On ELFCLASS64 targets, the GNU gABI requires 4-byte alignment for
NT_GNU_ABI_TAG and NT_GNU_BUILD_ID, and 8-byte alignment for everything else.

Current gold puts NT_GNU_PROPERTY_TYPE_0 notes into a 4-byte aligned segment,
where they are ignored by the glibc dynamic loader.  This is an
interoperability issue that needs to be address one way or the other.

Further discussion:

https://sourceware.org/ml/binutils/2018-08/msg00292.html

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