Hello,
I am writing an application which involves obtaining a backtrace, so I tried to
find an easy way to get the backtrace for the running program. I used the glibc
backtrace() function to get the return addresses from the stack. However, I
need to convert those addresses into meaningful information (such as function
name, file name and line number). I tried to use the addr2line code, but ran
into problems when using dynamically loaded libraries, because the addresses
(the one returned by backtrace(), and the actual address in the library -- the
one returned by gdb, for instance) didn't match.
I also noticed that the libbfd documentation suggested libdwarf as a better
solution for new programs, so I would like to use this library to get
information from those addresses. I looked over libdwfl.h, and saw that it
contains functions which could make my work easier. However, information about
this library is pretty hard to find (at least for me), so I was hoping you
could point me in the right direction. If you don't know of a tutorial either,
could you please give some tips and starting points? I'd be happy to write a
tutorial about what I've learned once I figure it out, which could then help
other users.
Or maybe someone knows a better way to do this?
Thanks,
Mihai
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