[Bug backends/21541] New: eu-readelf --notes fails to dump PRSTATUS data?

["myocytebd at sina dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=21541

            Bug ID: 21541
           Summary: eu-readelf --notes fails to dump PRSTATUS data?
           Product: elfutils
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: backends
          Assignee: unassigned at sourceware dot org
          Reporter: myocytebd at sina dot com
                CC: elfutils-devel at sourceware dot org
  Target Milestone: ---

Created attachment 10081
  --> https://sourceware.org/bugzilla/attachment.cgi?id=10081&action=edit
The core file mentioned

Version: latest master
         I built elfutils with --prefix with a non-default path.
         Native build on x64.

Problem: Run eu-readelf --notes core.dump
         The core-dump is generated from a x64 program.
         A. The one I built cannot dump details PRSTATUS data.
         B. On another machine, distribution shipped elfutils-0.158 dumps 
            details of PRSTATUS data for the same core-dump.

I have no glue where it is wrong. (Or the core file is broken?)
There seems to be no relevant configure options.
At runtime eu-readelf doesn't tell why it does not dump details of PRSTATUS.

config report:
=====================================================================
        elfutils: 0.169 (eu_version: 169)
=====================================================================

    Prefix                             : /home/xxx/ins
    Program prefix ("eu-" recommended) : eu-
    Source code location               : .
    Maintainer mode                    : 
    libebl modules subdirectory        : elfutils
    build arch                         : x86_64-unknown-linux-gnu

  RECOMMENDED FEATURES (should all be yes)
    gzip support                       : yes
    bzip2 support                      : yes
    lzma/xz support                    : yes
    libstdc++ demangle support         : yes
    File textrel check                 : yes
    Symbol versioning                  : yes

  NOT RECOMMENDED FEATURES (should all be no)
    Experimental thread safety         : no

  OTHER FEATURES
    Deterministic archives by default  : false
    Native language support            : yes

  EXTRA TEST FEATURES (used with make check)
    have bunzip2 installed (required)  : yes
    debug branch prediction            : no
    gprof support                      : no
    gcov support                       : no
    run all tests under valgrind       : no
    gcc undefined behaviour sanitizer  : no
    use rpath in tests                 : no
    test biarch                        : no

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