.*dw2-decodedline.o:     file format .*

Contents of the \.debug_line section:

dw2-decodedline\.c:
File name                            Line number    Starting address    View    Stmt

directory/file1\.c:
file1\.c                                        1 .*


\./dw2-decodedline\.c:\[\+\+\]
dw2-decodedline\.c                              2 .*
dw2-decodedline\.c                              - .*