linux下C语言编译为汇编代码

linux下将C语言编译为汇编代码，需用-S参数，如下代码

void fun(int a,int b){    /*这个函数什么也不做*/}int main(void){    fun(100,200);    return 0;}

编译命令为：

$ gcc -S s1.c

编译后的结果为：

 1 .file    "s1.c" 2     .text 3 .globl fun 4     .type    fun, @function 5 fun: 6     pushl    %ebp 7     movl    %esp, %ebp 8     popl    %ebp 9     ret10     .size    fun, .-fun11 .globl main12     .type    main, @function13 main:14     pushl    %ebp15     movl    %esp, %ebp16     subl    $8, %esp17     movl    $200, 4(%esp)18     movl    $100, (%esp)19     call    fun20     movl    $0, %eax21     leave22     ret23     .size    main, .-main24     .ident    "GCC: (Ubuntu/Linaro 4.4.4-14ubuntu5) 4.4.5"25     .section    .note.GNU-stack,"",@progbits

http://www.cnblogs.com/djcsch2001/archive/2011/05/26/2059151.html