[Bug binutils/29505] New: xxx-w64-mingw32-objdump takes a long time to scan pe binaries for debug information

[ralf.habacker at freenet dot de]

https://sourceware.org/bugzilla/show_bug.cgi?id=29505

            Bug ID: 29505
           Summary: xxx-w64-mingw32-objdump takes a long time to scan pe
                    binaries for debug information
           Product: binutils
           Version: 2.38
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: ralf.habacker at freenet dot de
  Target Milestone: ---

A speed issue with objdump in conjunction with binaries in portable executable
format (pe) has been noted on https://build.opensuse.org (OBS) and documented
on https://bugzilla.opensuse.org/show_bug.cgi?id=1202431 when run within a
worker on OBS. 

The problem can be reproduced in a local chroot environment created with the
osc command line client e.g. with the package at
https://build.opensuse.org/package/show/windows:mingw:win64/mingw64-libqt5-qttools
by running the following commands on an openSUSE Linux system:

# first create an account on OBS if not present, then run:

$ sudo zypper install osc
$ osc -A https://api.opensuse.org checkout
windows:mingw:win64/mingw64-libqt5-qttools && cd $_
$ osc build openSUSE_Leap_15.4 [-j5]

If you examine the timestamps after the term "mingw64-find-debuginfo.sh", you
will get the corresponding values. 

The question is whether objdump itself or in conjunction with the binaries used
can cause this problem and if so, how to fix it.

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