gcc -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -D_FORTIFY_SOURCE=2 -Wl,-z,relro test.c -o test.output
gcc -E -D_FORTIFY_SOURCE=2 test.c
gcc -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -D_FORTIFY_SOURCE=2 -Wl,-z,relro test.c -o test.output
gcc -E -D_FORTIFY_SOURCE=2 test.c