dbx must know the location of the source and object code files associated with a program. The default directory for the object files is the directory the files were in when the program was last linked. The default directory for the source files is the one they were in when last compiled. If you move the source or object files, or copy them to a new location, you must either relink the program, change to the new location before debugging, or use the pathmap command.
dbx sometimes uses object files to load additional debugging information. Source files are used when dbx displays source code.
If you have moved the source files or object files since you compiled and linked the program, you can add their new location to the search path. The pathmap command creates a mapping from your current view of the file system to the name in the executable image. The mapping is applied to source paths and object file paths.
(dbx) pathmap [-c] from to
If -c is used, the mapping is applied to the current working directory as well.
The pathmap command is also useful for dealing with automounted and explicit NFS mounted file systems with different base paths on differing hosts. Use -c when you try to correct problems due to the automounter because current working directories are inaccurate on automounted file systems.
The mapping of /tmp_mnt to / exists by default.
For more information, see pathmap Command.