sysdep.h

来自「一个C源代码分析器」· C头文件 代码 · 共 48 行

/* Copyright (C) 1991, 1992, 1993, 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.  */

#define MOVE(x,y)	movl x , y

#define LOSE asm volatile ("hlt")

#define SNARF_ARGS(argc, argv, envp)					      \
  do									      \
    {									      \
      int *entry_sp;							      \
      register char **p;						      \
									      \
      asm ("leal 4(%%ebp), %0" : "=r" (entry_sp));			      \
									      \
      argc = *entry_sp;							      \
      argv = (char **) (entry_sp + 1);					      \
      p = argv;								      \
      while (*p++ != NULL)						      \
	;								      \
      if (p >= (char **) argv[0])					      \
	--p;								      \
      envp = p;							      \
    } while (0)

#define CALL_WITH_SP(fn, sp) \
  asm volatile ("movl %0, %%esp; jmp %1" : : \
		"g" (sp), "m" (*(long int *) (fn)) : "%esp")

#define STACK_GROWTH_DOWN

#include_next <sysdep.h>