/* Dummy audit library for test-audit-threads.

   Copyright (C) 2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <elf.h>

#include <link.h>

#include <stdio.h>

#include <assert.h>

#include <string.h>

/* We must use a dummy LD_AUDIT module to force the dynamic loader to

   *not* update the real PLT, and instead use a cached value for the

   lazy resolution result.  It is the update of that cached value that

   we are testing for correctness by doing this.  */

/* Library to be audited.  */

#define LIB "tst-audit-threads-mod2.so"

/* CALLNUM is the number of retNum functions.  */

#define CALLNUM 7999

#define CONCATX(a, b) __CONCAT (a, b)

static int previous = 0;

unsigned int

la_version (unsigned int ver)

{

  return 1;

}

unsigned int

la_objopen (struct link_map *map, Lmid_t lmid, uintptr_t *cookie)

{

  return LA_FLG_BINDTO | LA_FLG_BINDFROM;

}

uintptr_t

CONCATX(la_symbind, __ELF_NATIVE_CLASS) (ElfW(Sym) *sym,

					unsigned int ndx,

					uintptr_t *refcook,

					uintptr_t *defcook,

					unsigned int *flags,

					const char *symname)

{

  const char * retnum = "retNum";

  char * num = strstr (symname, retnum);

  int n;

  /* Validate if the symbols are getting called in the correct order.

     This code is here to verify binutils does not optimize out the PLT

     entries that require the symbol binding.  */

  if (num != NULL)

    {

      n = atoi (num);

      assert (n >= previous);

      assert (n <= CALLNUM);

      previous = n;

    }

  return sym->st_value;

}