#ccc how-to assemble and link

  GNU nano 2.2.6              Файл: hello32.s

.text

.global _start
_start:
        push    %esp
        push    $print_fmt
        call   printf

        movl    $0, (%esp)   # reuse the stack slots we set up for printf, inst$
        call    exit         # exit(3) does an fflush and other cleanup

.section .rodata
print_fmt: .asciz "Hello, World!\n%%esp at startup = %#lx\n"


anthony:~/Dropbox/bero$ gcc -m32 -nostartfiles hello32.s
anthony:~/Dropbox/bero$ ./a.out
Hello, World!
%esp at startup = 0xffd65ab0





   .data
format: .asciz "hallo %d\n"
.text
    .global main
main:
  mov  $format, %rdi
#  mov  $1, %rsi           # Writing to ESI zero extends to RSI.
#  xor %eax, %eax          # Writing to EAX zero extends to RAX.
  call puts
  ret


anthony:~/Dropbox/bero$ nano hello32.s
anthony:~/Dropbox/bero$ gcc hello32.s
anthony:~/Dropbox/bero$ ./a.out
hallo %d

anthony:~/Dropbox/bero$ nano hello32.s







anthony:~/Dropbox/bero$ as -o hello32.o hello32.s
anthonyd:~/Dropbox/bero$ ld -o hell -dynamic-linker /lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 /usr/lib/x86_64-linux-gnu/crt1.o /usr/lib/x86_64-linux-gnu/crti.o -lc hello32.o /usr/lib/x86_64-linux-gnu/crtn.o
anthony:~/Dropbox/bero$ ./hell
hallo %d

anthony:~/Dropbox/bero$