elf/tst-glibc-hwcaps-2-cache.c

   1 /* Wrapper to invoke tst-glibc-hwcaps-2 in a container to test ldconfig.
   2    Copyright (C) 2021-2023 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 /* This program is just a wrapper that runs ldconfig followed by
  20    tst-glibc-hwcaps-2.  The actual test is provided via an
  21    implementation in a sysdeps subdirectory.  */
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <unistd.h>
  26 #include <support/support.h>
  27 #include <support/capture_subprocess.h>
  28
  29 int
  30 main (int argc, char **argv)
  31 {
  32   /* Run ldconfig to populate the cache.  */
  33   char *command = xasprintf ("%s/ldconfig", support_install_rootsbindir);
  34   struct support_capture_subprocess result =
  35     support_capture_subprogram (command,  &((char *) { NULL }));
  36   support_capture_subprocess_check (&result, "ldconfig", 0, sc_allow_none);
  37   free (command);
  38
  39   /* Reuse tst-glibc-hwcaps.  Since this code is running in a
  40      container, we can launch it directly.  */
  41   char *path = xasprintf ("%s/elf/tst-glibc-hwcaps-2", support_objdir_root);
  42   execv (path, argv);
  43   printf ("error: execv of %s failed: %m\n", path);
  44   return 1;
  45 }