Compile and Strip Debug info from executable

gistfile1.txt

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
Ref:
https://sourceware.org/gdb/onlinedocs/gdb/Files.html#Files https://sourceware.org/gdb/onlinedocs/gdb/Separate-Debug-Files.html