/*
 * Copyright 2005-2006, Axel Dörfler, axeld@pinc-software.de.
 * Copyright 2012, Alex Smith, alex@alex-smith.me.uk.
 * Distributed under the terms of the MIT License.
 */


#include <asm_defs.h>


/**     This file contains the first part of the ".init" and ".fini" sections in
 *      the ELF executable.
 *      The functions defined here will be called during initialization/termination
 *      of the loaded executable/library. The ".init" and ".fini" sections are
 *      stacked together like this:
 *
 *      crti.S          entry point
 *      crtbegin.S      GCC specific: constructors/destructors are called, ...
 *      crtend.S
 *      crtn.S          call to _init_after/_term_after
 *                              exit
 */


.section .init
FUNCTION(_init):
        push    %rbp
        movq    %rsp, %rbp

        // Preserve image ID.
        push    %rdi
        sub             $0x8, %rsp

        // crtbegin.o stuff comes here

.section .fini
FUNCTION(_fini):
        push    %rbp
        movq    %rsp, %rbp

        push    %rdi
        sub             $0x8, %rsp

        // crtend.o stuff comes here