Could somebody please explain what GCC is doing for this piece of code? What is it initializing? The original code is:

#include <stdio.h>
int main()
{

}

And it was translated to:

    .file   "test1.c"
    .def    ___main;    .scl    2;  .type   32; .endef
    .text
.globl _main
    .def    _main;  .scl    2;  .type   32; .endef
_main:
    pushl   %ebp
    movl    %esp, %ebp
    subl    $8, %esp
    andl    $-16, %esp
    movl    $0, %eax
    addl    $15, %eax
    addl    $15, %eax
    shrl    $4, %eax
    sall    $4, %eax
    movl    %eax, -4(%ebp)
    movl    -4(%ebp), %eax
    call    __alloca
    call    ___main
    leave
    ret

I would be grateful if a compiler/assembly guru got me started by explaining the stack, register and the section initializations. I cant make head or tail out of the code.

EDIT: I am using gcc 3.4.5. and the command line argument is gcc -S test1.c

Thank You, kunjaan.

c gcc compiler-construction assembly
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