1  /* Copyright (C) 2004-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <sched.h>
      19  #include <stdbool.h>
      20  #include <stdint.h>
      21  #include <stdio.h>
      22  #include <string.h>
      23  #include <sys/wait.h>
      24  #include <unistd.h>
      25  #include <tst-stack-align.h>
      26  #include <stackinfo.h>
      27  
      28  static int
      29  f (void *arg)
      30  {
      31    bool ok = true;
      32  
      33    puts ("in f");
      34  
      35    if (TEST_STACK_ALIGN ())
      36      ok = false;
      37  
      38    return ok ? 0 : 1;
      39  }
      40  
      41  static int
      42  do_test (void)
      43  {
      44    bool ok = true;
      45  
      46    puts ("in main");
      47  
      48    if (TEST_STACK_ALIGN ())
      49      ok = false;
      50  
      51  #ifdef __ia64__
      52    extern int __clone2 (int (*__fn) (void *__arg), void *__child_stack_base,
      53  		       size_t __child_stack_size, int __flags,
      54  		       void *__arg, ...);
      55    char st[256 * 1024];
      56    pid_t p = __clone2 (f, st, sizeof (st), 0, 0);
      57  #else
      58    char st[128 * 1024] __attribute__ ((aligned));
      59  # if _STACK_GROWS_DOWN
      60    pid_t p = clone (f, st + sizeof (st), 0, 0);
      61  # elif _STACK_GROWS_UP
      62    pid_t p = clone (f, st, 0, 0);
      63  # else
      64  #  error "Define either _STACK_GROWS_DOWN or _STACK_GROWS_UP"
      65  # endif
      66  #endif
      67    if (p == -1)
      68      {
      69        printf("clone failed: %m\n");
      70        return 1;
      71      }
      72  
      73    int e;
      74    if (waitpid (p, &e, __WCLONE) != p)
      75      {
      76        puts ("waitpid failed");
      77        kill (p, SIGKILL);
      78        return 1;
      79      }
      80    if (!WIFEXITED (e))
      81      {
      82        if (WIFSIGNALED (e))
      83  	printf ("died from signal %s\n", strsignal (WTERMSIG (e)));
      84        else
      85  	puts ("did not terminate correctly");
      86        return 1;
      87      }
      88    if (WEXITSTATUS (e) != 0)
      89      ok = false;
      90  
      91    return ok ? 0 : 1;
      92  }
      93  
      94  #define TEST_FUNCTION do_test ()
      95  #include "../test-skeleton.c"