__mknod.s

一个C源代码分析器

/* Copyright (C) 1994 Free Software Foundation, Inc.
This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.

The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB.  If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.  */

#include <sysdep.h>

/* In SVR4 the `mknod' call is actually done by the `xmknod' system call,
   which takes an additional first argument giving a version number for
   the interface.  This macro gives the SVR4 version number that
   corresponds to the modern interface.  */
#define _MKNOD_VER      2

.globl syscall_error
ENTRY (__mknod)
        popl %eax               /* Pop return address into %eax.  */
        pushl $_MKNOD_VER       /* Push extra first arg to syscall.  */
        pushl %eax              /* Push back the return address.  */
        DO_CALL (xmknod, 3)     /* Do the syscall.   */
        jb syscall_error        /* Check for error.  */
        ret                     /* Return success.  */