Welcome to LQ.
$ man nm (
http://unixhelp.ed.ac.uk/CGI/man-cgi?nm )
-l :
If line number information can be found,
print it after the other symbol information.
I.e. no such information, unless the code is compiled with [ -g ] :
http://www.network-theory.co.uk/docs...cintro_37.html
"" § 5. Normally, an executable file does not contain any references
to the original program source code ...
... GCC provides the -g debug option to store additional
debugging information in object files and executables. ""
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