/usr/lib/x86_64-linux-gnu/root5.34/libFoam.rootmap is in libroot-math-foam5.34 5.34.30-0ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 | Library.TFoam:                              libFoam.so libHist.so libMathCore.so
Library.TFoamCell:                          libFoam.so libHist.so libMathCore.so
Library.TFoamIntegrand:                     libFoam.so libHist.so libMathCore.so
Library.TFoamMaxwt:                         libFoam.so libHist.so libMathCore.so
Library.TFoamSampler:                       libFoam.so libHist.so libMathCore.so
Library.TFoamVect:                          libFoam.so libHist.so libMathCore.so
 |