gcc -g -O2 -D_FORTIFY_SOURCE=2 -Wl,-z,relro -Wl,-z,now -fstack-protector-strong -Wformat -Werror=format-security -o test test.c
gcc -g -O2 -D_FORTIFY_SOURCE=2 -Wl,-z,relro -Wl,-z,now -fstack-protector-strong -Wformat -Werror=format-security -o test test.c