[Bug ld/25993] Bug in bfd causes crashes with DXVK

[wgpierce17 at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=25993

--- Comment #1 from William Pierce <wgpierce17 at gmail dot com> ---
The files in my previous comment ran the build commands to build binutils using
no extra compiler or linker flags. In this case, I actually found that I
couldn't  reproduce the problem! So the logs I provided in the first comment 
may not be useful.

The default flags to use when building in the distribution I use are

CPPFLAGS="-D_FORTIFY_SOURCE=2"
CFLAGS="-march=x86-64 -mtune=generic -O2 -pipe -fno-plt"
CXXFLAGS="-march=x86-64 -mtune=generic -O2 -pipe -fno-plt"
LDFLAGS="-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now"

I found if I disable all the CPPFLAGS/CFLAGS/CXXFLAGS and leave only the
LDFLAGS, then I can reproduce the issue. (I did not try out disabling other
combinations of flags.)

I tried with a few subsets of the LDFLAGS flags like
LDFLAGS="-Wl,-O1"
or
LDFLAGS="-Wl,--sort-common,--as-needed"

and could reproduce it with either of those as well (but maybe not some other
combinations).

Any advice on how to debug further would be appreciated. I could pare down the
flags more or diff the resulting binaries in the actual good/bad case.

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