gdb: “No symbol table is loaded”

Question

I keep getting this error mesage when trying to add a breakpoint in gdb.

I\'ve used these commands to compile:

gcc -g main.c utmpib2.c -o main.o
and:         


        

Answer 1

Whenever gcc on the compilation machine and gdb on the testing machine have differing versions, you may be facing debuginfo format incompatibility.

To fix that, try downgrading the debuginfo format:

gcc -gdwarf-3 ...
gcc -gdwarf-2 ...
gcc -gstabs ...
gcc -gstabs+ ...
gcc -gcoff ...
gcc -gxcoff ...
gcc -gxcoff+ ...

Or match gdb to the gcc you're using.