[Bug binutils/28843] New: regression: readelf -n became slow without -wN

[jan at jankratochvil dot net]

https://sourceware.org/bugzilla/show_bug.cgi?id=28843

            Bug ID: 28843
           Summary: regression: readelf -n became slow without -wN
           Product: binutils
           Version: 2.37
            Status: NEW
          Severity: minor
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: jan at jankratochvil dot net
  Target Milestone: ---

$ du -h binarywithdwarf
187M    binarywithdwarf

binutils-2.27-44.base.el7_9.1.x86_64
$ time readelf -n     binarywithdwarf >/dev/null
real    0m0.012s

binutils-2.37-10.fc35.x86_64
$ time readelf -n     binarywithdwarf >/dev/null
real    0m7.946s
$ time readelf -n -wN binarywithdwarf >/dev/null
real    0m0.039s

Using -n to read NT_GNU_BUILD_ID.

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