[Bug binutils/29505] 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

--- Comment #5 from Ralf Habacker <ralf.habacker at freenet dot de> ---
(In reply to Ralf Habacker from comment #4)
> 
> I'm going to rebuild binutils 2.39 with this commit and will check if the
> performance issue is also fixed.

It isn't fixed. The build log
(https://build.opensuse.org/package/live_build_log/home:rhabacker:branches:windows:mingw:win32:binutils-2.39/mingw32-libqt5-qttools/openSUSE_Leap_15.3/x86_64)
gives: 

[  186s] + /usr/lib/rpm/mingw32-find-debuginfo.sh /home/abuild/rpmbuild/BUILD 1
[  186s] extracting debug info from
/home/abuild/rpmbuild/BUILDROOT/mingw32-libqt5-qttools-src-5.12.12-lp153.3.2.x86_64/usr/i686-w64-mingw32/sys-root/mingw/bin/assistant-qt5.exe
[  216s]
~/rpmbuild/BUILDROOT/mingw32-libqt5-qttools-src-5.12.12-lp153.3.2.x86_64/usr/i686-w64-mingw32/sys-

i686-w64-mingw32-objdump still needs about 30s to scan assistant-qt5.exe, where
it needs 2.8s when running on the host.

$ time
/home/osc/build-root/openSUSE_Leap_15.3-x86_64/home/abuild/rpmbuild/BUILD/binutils-2.39/build/binutils/objdump
-Wi ~/Downloads/usr/i686-w64-mingw32/sys-root/mingw/bin/assistant-qt5.exe.debug
 > /dev/null

real    0m2,864s
user    0m2,816s
sys     0m0,048s

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