1  /* Test R_*_IRELATIVE resolver with second argument.
       2     Copyright (C) 2019-2023 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  #include <stdint.h>
      20  #include <sys/auxv.h>
      21  #include <sys/ifunc.h>
      22  #include <support/check.h>
      23  
      24  static int
      25  one (void)
      26  {
      27    return 1;
      28  }
      29  
      30  static uint64_t saved_arg1;
      31  static __ifunc_arg_t saved_arg2;
      32  
      33  /* local ifunc symbol.  */
      34  int
      35  __attribute__ ((visibility ("hidden")))
      36  foo (void);
      37  
      38  static void *
      39  __attribute__ ((used))
      40  foo_ifunc (uint64_t, const __ifunc_arg_t *) __asm__ ("foo");
      41  __asm__(".type foo, %gnu_indirect_function");
      42  
      43  static void *
      44  __attribute__ ((used))
      45  inhibit_stack_protector
      46  foo_ifunc (uint64_t arg1, const __ifunc_arg_t *arg2)
      47  {
      48    saved_arg1 = arg1;
      49    if (arg1 & _IFUNC_ARG_HWCAP)
      50        saved_arg2 = *arg2;
      51    return (void *) one;
      52  }
      53  
      54  static int
      55  do_test (void)
      56  {
      57    TEST_VERIFY (foo () == 1);
      58    TEST_VERIFY (saved_arg1 & _IFUNC_ARG_HWCAP);
      59    TEST_COMPARE ((uint32_t)saved_arg1, (uint32_t)getauxval (AT_HWCAP));
      60    TEST_COMPARE (saved_arg2._size, sizeof (__ifunc_arg_t));
      61    TEST_COMPARE (saved_arg2._hwcap, getauxval (AT_HWCAP));
      62    TEST_COMPARE (saved_arg2._hwcap2, getauxval (AT_HWCAP2));
      63    return 0;
      64  }
      65  
      66  #include <support/test-driver.c>