lib64stdc++6-mips-cross 10.2.0-5ubuntu1~20.04cross1 (riscv64 binary) in ubuntu focal

 This package contains an additional runtime library for C++ programs
 built with the GNU compiler.
 .
 libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which
 was included up to g++-2.95. The first version of libstdc++-v3 appeared
 in g++-3.0.
 .
 This package contains files for mips architecture, for use in cross-compile
 environment.

Details

Package version:
10.2.0-5ubuntu1~20.04cross1
Source:
gcc-10-cross-mipsen 2+c1ubuntu1.1 source package in Ubuntu
Status:
Superseded
Component:
universe
Priority:
Optional