Debugging programs with external symbol

Debugging programs with external symbol file /debugging information

Compile with debug information:

gcc -g -o main main.c

Separate the debug information:

objcopy --only-keep-debug main main.debug

or

cp main main.debug

strip --only-keep-debug main.debug

Strip debug information from origin file:

objcopy --strip-debug main

or

strip --strip-debug --strip-unneeded main

debug by debuglink mode:

objcopy --add-gnu-debuglink main.debug main

gdb main

You can also use exec file and symbol file separatly:

gdb -s main.debug -e main

or

gdb

(gdb) exec-file main

(gdb) symbol-file main.debug

For details:

(gdb) help exec-file

(gdb) help symbol-file