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glibc  2.9
tst-alignmod.c
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00001 /* Copyright (C) 2003 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <stdio.h>
00021 #include <tst-stack-align.h>
00022 
00023 static int res, *resp;
00024 
00025 static void __attribute__((constructor))
00026 con (void)
00027 {
00028   res = TEST_STACK_ALIGN () ? -1 : 1;
00029 }
00030 
00031 void
00032 in_dso (int *result)
00033 {
00034   if (!res)
00035     {
00036       puts ("constructor has not been run");
00037       *result = 1;
00038     }
00039   else if (res != 1)
00040     {
00041       puts ("constructor has been run without sufficient alignment");
00042       *result = 1;
00043     }
00044 
00045   resp = result;
00046 }
00047 
00048 static void __attribute__((destructor))
00049 des (void)
00050 {
00051   if (TEST_STACK_ALIGN ())
00052     *resp = 1;
00053 }