Question

GNU gdb Fedora (6.8-37.el5)
Kernal 2.6.18-164.el5

I am trying to debug my application. However, everytime I pass the binary to the gdb it says:

(no debugging symbols found)

Here is the file output of the binary, and as you can see it is not stripped:

vid: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped

I am compiling with the following CFLAGS:

CFLAGS = -Wall -Wextra -ggdb -O0 -Wunreachable-code

Can anyone tell me if I am missing some simple here?

Answer 1

Some Linux distributions don’t use the gdb style debugging symbols. (IIRC they prefer dwarf2.)

In general, gcc and gdb will be in sync as to what kind of debugging symbols they use, and forcing a particular style will just cause problems; unless you know that you need something else, use just -g.