Question

I have core dump file. when I try to open in gdb. I am able to see the backtrace (with address and its corresponding functions) but the corresponding function in mapped to .so files not to source.

bt looks like this

#0  0xf611b39c in xxFun () from /lib/libxx.so.0

$file /lib/libtxx.so.0
/lib/libtxx.so.0: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), not stripped

Able to display symbols using nm!

Queries:-
1) How can I map this .so files to source files
2) I am not able to display info locals/args. How can I get these data?

When I try to display

#info locals
No symbol table info available.
#info args
No symbol table info available.

Please let me know if you need more info.

Answer 1

Exactly as “n.m.” commented, you need libxx.so built with debug info (usualy -g switch at compile time).

That will provide both address to source mapping, and info locals, args, etc.