gdb-mingw-w64 12.1-3ubuntu3+12 (s390x binary) in ubuntu lunar

 MinGW-w64 provides a development and runtime environment for 32- and
 64-bit Windows applications using the GNU Compiler Collection (gcc).
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 This package contains the gdb debugger which can be used with a
 Windows-hosted gdbserver to debug programs running on Windows hosts.
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 The gdb-mingw-w64-target package contains gdbserver and gdbreplay for
 32- and 64-bit Windows.
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 The non-free gdb-doc package contains the manual pages for gdb.