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

I met this issue this morning because I used the same executable in DIFFERENT OSes: after compiling my program with gcc -ggdb -Wall test.c -o test in my Mac(10.15.2), I ran gdb with the executable in Ubuntu(16.04) in my VirtualBox.

Fix: recompile with the same command under Ubuntu, then you should be good.