$gcc -Wall -save-temps filename.c -o filename

When we compile code with "-save-temps" option of gcc
it generates 3 output files :

1) preprocessed code (having .i extension)
2) assembly code (having .s extension)
3) object code (having .o extension)

******** filename.c *****************
#include<stdio.h>
int main(){
printf("Hello World\n");
}
******** filename.s *****************
	.file	"monprog.c"
	.section .rodata
	
.LC0:
	.string "Hello World"
	.text
	.global main
	.type	main, @function
	
main:
.LFB0
	.cfi_startproc
	push %rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq %rsp, %rbp
	.cfi_def_cfa_register 6
	movl $.LC0, %edi
	call puts
	movl $0, %eax
	popq %rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
	
.LFE0:
	.size main, .-main
	.ident "GCC:"
	.section .note.GNU-stack, " ", @progbits
	
*************************************

How with GNO can we have assembly source code of our program ?

>compile filename.c keep=filename
>link filename keep=filename
>ls
filename*  filename.a  filename.c  filename.root filename.sym