sysdeps/mach/i386/sysdep.h

   1 /* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2007
   2      Free Software Foundation, Inc.
   3
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 /* Defines RTLD_PRIVATE_ERRNO and USE_DL_SYSINFO.  */
  22 #include <dl-sysdep.h>
  23 #include <tls.h>
  24
  25 #define LOSE asm volatile ("hlt")
  26
  27 #define SNARF_ARGS(entry_sp, argc, argv, envp)                                \
  28   do                                                                          \
  29     {                                                                         \
  30       register char **p;                                                      \
  31       argc = (int) *entry_sp;                                                 \
  32       argv = (char **) (entry_sp + 1);                                        \
  33       p = argv;                                                               \
  34       while (*p++ != NULL)                                                    \
  35         ;                                                                     \
  36       if (p >= (char **) argv[0])                                             \
  37         --p;                                                                  \
  38       envp = p;                                                       \
  39     } while (0)
  40
  41 #define CALL_WITH_SP(fn, info, sp) \
  42   do {                                                                        \
  43         void **ptr = (void **) sp;                                            \
  44         *--(__typeof (info) *) ptr = info;                                    \
  45         ptr[-1] = ptr;                                                        \
  46         --ptr;                                                                \
  47     asm volatile ("movl %0, %%esp; call %1" : :                               \
  48                   "g" (ptr), "m" (*(long int *) (fn)) : "%esp");              \
  49   } while (0)
  50
  51 #define RETURN_TO(sp, pc, retval) \
  52   asm volatile ("movl %0, %%esp; jmp %*%1 # %2" \
  53                 : : "g" (sp), "r" (pc), "a" (retval))
  54
  55
  56 #define STACK_GROWTH_DOWN
  57
  58 /* Get the machine-independent Mach definitions.  */
  59 #include <sysdeps/mach/sysdep.h>
  60
  61
  62 /* This should be rearranged, but at the moment this file provides
  63    the most useful definitions for assembler syntax details.  */
  64 #undef ENTRY
  65 #undef ALIGN
  66 #include <sysdeps/unix/i386/sysdep.h>