$ gcc -Os a.c && ls -al a.out && size -rwxr-xr-x 1 user user 15952 Jan 24 17:49 a.out text data bss dec hex filename 1316 5

$ gcc -Os a.c && ls -al a.out && size -rwxr-xr-x 1 user user 15952 Jan 24 17:49 a.out text data bss dec hex filename 1316 584 8 1908 774 a.out $ gcc -s -Os a.c && ls -al a.out && size -rwxr-xr-x 1 user user 14472 Jan 24 17:50 a.out text data bss dec hex filename 1316 584 8 1908 774 a.out $ gcc -s -Os -fuse-ld=lld a.c && ls -al a.out && size -rwxr-xr-x 1 user user 4552 Jan 24 17:50 a.out text data bss dec hex filename 1199 528 1 1728 6c0 a.out