>objdump -Mintel -sj.data helloworld.obj > DISASM.txt
>objdump -Mintel -dj.text helloworld.obj >>DISASM.txt

helloworld.obj:
Contents of section .data:
 0000 48656c6c 6f20776f 726c6421 0a00      Hello world!..  

helloworld.obj:
Disassembly of section .text:
00000000 <_main>:
   0:	68 00 00 00 00       	push   0x0
   5:	e8 00 00 00 00       	call   a <_main+0xa>
   a:	83 c4 04             	add    esp,0x4
   d:	b8 00 00 00 00       	mov    eax,0x0
  12:	c3                   	ret