~linaro-toolchain-dev/cortex-strings/trunk

/* Test and measure strcpy functions.

   Copyright (C) 1999, 2002, 2003, 2005 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Written by Jakub Jelinek <jakub@redhat.com>, 1999.

   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, write to the Free

   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

   02111-1307 USA.  */

#ifndef STRCPY_RESULT

# define STRCPY_RESULT(dst, len) dst

# define TEST_MAIN

# include "test-string.h"

char *simple_strcpy (char *, const char *);

IMPL (simple_strcpy, 0)

IMPL (strcpy, 1)

char *

simple_strcpy (char *dst, const char *src)

{

  char *ret = dst;

  while ((*dst++ = *src++) != '\0');

  return ret;

}

#endif

typedef char *(*proto_t) (char *, const char *);

static void

do_one_test (impl_t *impl, char *dst, const char *src,

	     size_t len __attribute__((unused)))

{

  if (CALL (impl, dst, src) != STRCPY_RESULT (dst, len))

    {

      error (0, 0, "Wrong result in function %s %p %p", impl->name,

	     CALL (impl, dst, src), STRCPY_RESULT (dst, len));

      ret = 1;

      return;

    }

  if (strcmp (dst, src) != 0)

    {

      error (0, 0, "Wrong result in function %s dst \"%s\" src \"%s\"",

	     impl->name, dst, src);

      ret = 1;

      return;

    }

  if (HP_TIMING_AVAIL)

    {

      hp_timing_t start __attribute ((unused));

      hp_timing_t stop __attribute ((unused));;

      hp_timing_t best_time = ~ (hp_timing_t) 0;

      size_t i;

      for (i = 0; i < 32; ++i)

	{

	  HP_TIMING_NOW (start);

	  CALL (impl, dst, src);

	  HP_TIMING_NOW (stop);

	  HP_TIMING_BEST (best_time, start, stop);

	}

      printf ("\t%zd", (size_t) best_time);

    }

}

static void

do_test (size_t align1, size_t align2, size_t len, int max_char)

{

  size_t i;

  char *s1, *s2;

  align1 &= 7;

  if (align1 + len >= page_size)

    return;

  align2 &= 7;

  if (align2 + len >= page_size)

    return;

  s1 = (char *) (buf1 + align1);

  s2 = (char *) (buf2 + align2);

  for (i = 0; i < len; i++)

    s1[i] = 32 + 23 * i % (max_char - 32);

  s1[len] = 0;

  if (HP_TIMING_AVAIL)

    printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2);

  FOR_EACH_IMPL (impl, 0)

    do_one_test (impl, s2, s1, len);

  if (HP_TIMING_AVAIL)

    putchar ('\n');

}

static void

do_random_tests (void)

{

  size_t i, j, n, align1, align2, len;

  unsigned char *p1 = buf1 + page_size - 512;

  unsigned char *p2 = buf2 + page_size - 512;

  unsigned char *res;

  for (n = 0; n < ITERATIONS; n++)

    {

      align1 = random () & 31;

      if (random () & 1)

	align2 = random () & 31;

      else

	align2 = align1 + (random () & 24);

      len = random () & 511;

      j = align1;

      if (align2 > j)

	j = align2;

      if (len + j >= 511)

	len = 510 - j - (random () & 7);

      j = len + align1 + 64;

      if (j > 512)

	j = 512;

      for (i = 0; i < j; i++)

	{

	  if (i == len + align1)

	    p1[i] = 0;

	  else

	    {

	      p1[i] = random () & 255;

	      if (i >= align1 && i < len + align1 && !p1[i])

		p1[i] = (random () & 127) + 3;

	    }

	}

      FOR_EACH_IMPL (impl, 1)

	{

	  memset (p2 - 64, '\1', 512 + 64);

	  res = (unsigned char *) CALL (impl, (char *) (p2 + align2),

					(char *) (p1 + align1));

	  if (res != STRCPY_RESULT (p2 + align2, len))

	    {

	      error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd) %p != %p",

		     n, impl->name, align1, align2, len, res,

		     STRCPY_RESULT (p2 + align2, len));

	      ret = 1;

	    }

	  for (j = 0; j < align2 + 64; ++j)

	    {

	      if (p2[j - 64] != '\1')

		{

		  error (0, 0, "Iteration %zd - garbage before, %s (%zd, %zd, %zd)",

			 n, impl->name, align1, align2, len);

		  ret = 1;

		  break;

		}

	    }

	  for (j = align2 + len + 1; j < 512; ++j)

	    {

	      if (p2[j] != '\1')

		{

		  error (0, 0, "Iteration %zd - garbage after, %s (%zd, %zd, %zd)",

			 n, impl->name, align1, align2, len);

		  ret = 1;

		  break;

		}

	    }

	  if (memcmp (p1 + align1, p2 + align2, len + 1))

	    {

	      error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd)",

		     n, impl->name, align1, align2, len);

	      ret = 1;

	    }

	}

    }

}

int

test_main (void)

{

  size_t i;

  test_init ();

  printf ("%23s", "");

  FOR_EACH_IMPL (impl, 0)

    printf ("\t%s", impl->name);

  putchar ('\n');

  for (i = 0; i < 16; ++i)

    {

      do_test (0, 0, i, 127);

      do_test (0, 0, i, 255);

      do_test (0, i, i, 127);

      do_test (i, 0, i, 255);

    }

  for (i = 1; i < 8; ++i)

    {

      do_test (0, 0, 8 << i, 127);

      do_test (8 - i, 2 * i, 8 << i, 127);

    }

  for (i = 1; i < 8; ++i)

    {

      do_test (i, 2 * i, 8 << i, 127);

      do_test (2 * i, i, 8 << i, 255);

      do_test (i, i, 8 << i, 127);

      do_test (i, i, 8 << i, 255);

    }

  do_random_tests ();

  return ret;

}

#include "test-skeleton.c"