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-rw-r--r--string/test-strcmp.c409
1 files changed, 0 insertions, 409 deletions
diff --git a/string/test-strcmp.c b/string/test-strcmp.c
deleted file mode 100644
index f7af219149..0000000000
--- a/string/test-strcmp.c
+++ /dev/null
@@ -1,409 +0,0 @@
-/* Test and measure strcmp and wcscmp functions.
- Copyright (C) 1999-2017 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Written by Jakub Jelinek <jakub@redhat.com>, 1999.
- Added wcscmp support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011.
-
- 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/>. */
-
-#define TEST_MAIN
-#ifdef WIDE
-# define TEST_NAME "wcscmp"
-#else
-# define TEST_NAME "strcmp"
-#endif
-#include "test-string.h"
-
-#ifdef WIDE
-# include <wchar.h>
-
-# define L(str) L##str
-# define STRCMP wcscmp
-# define STRCPY wcscpy
-# define STRLEN wcslen
-# define MEMCPY wmemcpy
-# define SIMPLE_STRCMP simple_wcscmp
-# define STUPID_STRCMP stupid_wcscmp
-# define CHAR wchar_t
-# define UCHAR wchar_t
-# define CHARBYTES 4
-# define CHARBYTESLOG 2
-# define CHARALIGN __alignof__ (CHAR)
-# define MIDCHAR 0x7fffffff
-# define LARGECHAR 0xfffffffe
-# define CHAR__MAX WCHAR_MAX
-# define CHAR__MIN WCHAR_MIN
-
-/* Wcscmp uses signed semantics for comparison, not unsigned */
-/* Avoid using substraction since possible overflow */
-
-int
-simple_wcscmp (const wchar_t *s1, const wchar_t *s2)
-{
- wchar_t c1, c2;
- do
- {
- c1 = *s1++;
- c2 = *s2++;
- if (c2 == L'\0')
- return c1 - c2;
- }
- while (c1 == c2);
-
- return c1 < c2 ? -1 : 1;
-}
-
-int
-stupid_wcscmp (const wchar_t *s1, const wchar_t *s2)
-{
- size_t ns1 = wcslen (s1) + 1;
- size_t ns2 = wcslen (s2) + 1;
- size_t n = ns1 < ns2 ? ns1 : ns2;
- int ret = 0;
-
- wchar_t c1, c2;
-
- while (n--) {
- c1 = *s1++;
- c2 = *s2++;
- if ((ret = c1 < c2 ? -1 : c1 == c2 ? 0 : 1) != 0)
- break;
- }
- return ret;
-}
-
-#else
-# include <limits.h>
-
-# define L(str) str
-# define STRCMP strcmp
-# define STRCPY strcpy
-# define STRLEN strlen
-# define MEMCPY memcpy
-# define SIMPLE_STRCMP simple_strcmp
-# define STUPID_STRCMP stupid_strcmp
-# define CHAR char
-# define UCHAR unsigned char
-# define CHARBYTES 1
-# define CHARBYTESLOG 0
-# define CHARALIGN 1
-# define MIDCHAR 0x7f
-# define LARGECHAR 0xfe
-# define CHAR__MAX CHAR_MAX
-# define CHAR__MIN CHAR_MIN
-
-/* Strcmp uses unsigned semantics for comparison. */
-int
-simple_strcmp (const char *s1, const char *s2)
-{
- int ret;
-
- while ((ret = *(unsigned char *) s1 - *(unsigned char*) s2++) == 0 && *s1++);
- return ret;
-}
-
-int
-stupid_strcmp (const char *s1, const char *s2)
-{
- size_t ns1 = strlen (s1) + 1;
- size_t ns2 = strlen (s2) + 1;
- size_t n = ns1 < ns2 ? ns1 : ns2;
- int ret = 0;
-
- while (n--)
- if ((ret = *(unsigned char *) s1++ - *(unsigned char *) s2++) != 0)
- break;
- return ret;
-}
-#endif
-
-typedef int (*proto_t) (const CHAR *, const CHAR *);
-
-IMPL (STUPID_STRCMP, 1)
-IMPL (SIMPLE_STRCMP, 1)
-IMPL (STRCMP, 1)
-
-static int
-check_result (impl_t *impl,
- const CHAR *s1, const CHAR *s2,
- int exp_result)
-{
- int result = CALL (impl, s1, s2);
- if ((exp_result == 0 && result != 0)
- || (exp_result < 0 && result >= 0)
- || (exp_result > 0 && result <= 0))
- {
- error (0, 0, "Wrong result in function %s %d %d", impl->name,
- result, exp_result);
- ret = 1;
- return -1;
- }
-
- return 0;
-}
-
-static void
-do_one_test (impl_t *impl,
- const CHAR *s1, const CHAR *s2,
- int exp_result)
-{
- if (check_result (impl, s1, s2, exp_result) < 0)
- return;
-}
-
-static void
-do_test (size_t align1, size_t align2, size_t len, int max_char,
- int exp_result)
-{
- size_t i;
-
- CHAR *s1, *s2;
-
- if (len == 0)
- return;
-
- align1 &= 63;
- if (align1 + (len + 1) * CHARBYTES >= page_size)
- return;
-
- align2 &= 63;
- if (align2 + (len + 1) * CHARBYTES >= page_size)
- return;
-
- /* Put them close to the end of page. */
- i = align1 + CHARBYTES * (len + 2);
- s1 = (CHAR *) (buf1 + ((page_size - i) / 16 * 16) + align1);
- i = align2 + CHARBYTES * (len + 2);
- s2 = (CHAR *) (buf2 + ((page_size - i) / 16 * 16) + align2);
-
- for (i = 0; i < len; i++)
- s1[i] = s2[i] = 1 + (23 << ((CHARBYTES - 1) * 8)) * i % max_char;
-
- s1[len] = s2[len] = 0;
- s1[len + 1] = 23;
- s2[len + 1] = 24 + exp_result;
- s2[len - 1] -= exp_result;
-
- FOR_EACH_IMPL (impl, 0)
- do_one_test (impl, s1, s2, exp_result);
-}
-
-static void
-do_random_tests (void)
-{
- UCHAR *p1 = (UCHAR *) (buf1 + page_size - 512 * CHARBYTES);
- UCHAR *p2 = (UCHAR *) (buf2 + page_size - 512 * CHARBYTES);
-
- for (size_t n = 0; n < ITERATIONS; n++)
- {
- /* for wcscmp case align1 and align2 mean here alignment
- in wchar_t symbols, it equal 4*k alignment in bytes, we
- don't check other alignments like for example
- p1 = (wchar_t *)(buf1 + 1)
- because it's wrong using of wchar_t type. */
- size_t align1 = random () & 31;
- size_t align2;
- if (random () & 1)
- align2 = random () & 31;
- else
- align2 = align1 + (random () & 24);
- size_t pos = random () & 511;
- size_t j = align1 > align2 ? align1 : align2;
- if (pos + j >= 511)
- pos = 510 - j - (random () & 7);
- size_t len1 = random () & 511;
- if (pos >= len1 && (random () & 1))
- len1 = pos + (random () & 7);
- if (len1 + j >= 512)
- len1 = 511 - j - (random () & 7);
- size_t len2;
- if (pos >= len1)
- len2 = len1;
- else
- len2 = len1 + (len1 != 511 - j ? random () % (511 - j - len1) : 0);
- j = (pos > len2 ? pos : len2) + align1 + 64;
- if (j > 512)
- j = 512;
- for (size_t i = 0; i < j; ++i)
- {
- p1[i] = random () & 255;
- if (i < len1 + align1 && !p1[i])
- {
- p1[i] = random () & 255;
- if (!p1[i])
- p1[i] = 1 + (random () & 127);
- }
- }
- for (size_t i = 0; i < j; ++i)
- {
- p2[i] = random () & 255;
- if (i < len2 + align2 && !p2[i])
- {
- p2[i] = random () & 255;
- if (!p2[i])
- p2[i] = 1 + (random () & 127);
- }
- }
-
- int result = 0;
- MEMCPY (p2 + align2, p1 + align1, pos);
- if (pos < len1)
- {
- if (p2[align2 + pos] == p1[align1 + pos])
- {
- p2[align2 + pos] = random () & 255;
- if (p2[align2 + pos] == p1[align1 + pos])
- p2[align2 + pos] = p1[align1 + pos] + 3 + (random () & 127);
- }
-
- if (p1[align1 + pos] < p2[align2 + pos])
- result = -1;
- else
- result = 1;
- }
- p1[len1 + align1] = 0;
- p2[len2 + align2] = 0;
-
- FOR_EACH_IMPL (impl, 1)
- {
- int r = CALL (impl, (CHAR *) (p1 + align1), (CHAR *) (p2 + align2));
- /* Test whether on 64-bit architectures where ABI requires
- callee to promote has the promotion been done. */
- asm ("" : "=g" (r) : "0" (r));
- if ((r == 0 && result)
- || (r < 0 && result >= 0)
- || (r > 0 && result <= 0))
- {
- error (0, 0, "Iteration %zd - wrong result in function %s (align in bytes: %zd, align in bytes: %zd, len1: %zd, len2: %zd, pos: %zd) %d != %d, p1 %p p2 %p",
- n, impl->name, (size_t) (p1 + align1) & 63, (size_t) (p1 + align2) & 63, len1, len2, pos, r, result, p1, p2);
- ret = 1;
- }
- }
- }
-}
-
-static void
-check (void)
-{
- CHAR *s1 = (CHAR *) (buf1 + 0xb2c);
- CHAR *s2 = (CHAR *) (buf1 + 0xfd8);
-
- STRCPY(s1, L("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrs"));
- STRCPY(s2, L("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijkLMNOPQRSTUV"));
-
- /* Check correct working for negatives values */
-
- s1[0] = 1;
- s2[0] = 1;
- s1[1] = 1;
- s2[1] = 1;
- s1[2] = -1;
- s2[2] = 3;
- s1[3] = 0;
- s2[3] = -1;
-
- /* Check possible overflow bug, actual more for wcscmp */
-
- s1[7] = CHAR__MIN;
- s2[7] = CHAR__MAX;
-
- size_t l1 = STRLEN (s1);
- size_t l2 = STRLEN (s2);
-
- for (size_t i1 = 0; i1 < l1; i1++)
- for (size_t i2 = 0; i2 < l2; i2++)
- {
- int exp_result = SIMPLE_STRCMP (s1 + i1, s2 + i2);
- FOR_EACH_IMPL (impl, 0)
- check_result (impl, s1 + i1, s2 + i2, exp_result);
- }
-
- /* Test cases where there are multiple zero bytes after the first. */
-
- for (size_t i = 0; i < 16 + 1; i++)
- {
- s1[i] = 0x00;
- s2[i] = 0x00;
- }
-
- for (size_t i = 0; i < 16; i++)
- {
- int exp_result;
-
- for (int val = 0x01; val < 0x100; val++)
- {
- for (size_t j = 0; j < i; j++)
- {
- s1[j] = val;
- s2[j] = val;
- }
-
- s2[i] = val;
-
- exp_result = SIMPLE_STRCMP (s1, s2);
- FOR_EACH_IMPL (impl, 0)
- check_result (impl, s1, s2, exp_result);
- }
- }
-}
-
-
-int
-test_main (void)
-{
- size_t i;
-
- test_init ();
- check();
-
- printf ("%23s", "");
- FOR_EACH_IMPL (impl, 0)
- printf ("\t%s", impl->name);
- putchar ('\n');
-
- for (i = 1; i < 32; ++i)
- {
- do_test (CHARBYTES * i, CHARBYTES * i, i, MIDCHAR, 0);
- do_test (CHARBYTES * i, CHARBYTES * i, i, MIDCHAR, 1);
- do_test (CHARBYTES * i, CHARBYTES * i, i, MIDCHAR, -1);
- }
-
- for (i = 1; i < 10 + CHARBYTESLOG; ++i)
- {
- do_test (0, 0, 2 << i, MIDCHAR, 0);
- do_test (0, 0, 2 << i, LARGECHAR, 0);
- do_test (0, 0, 2 << i, MIDCHAR, 1);
- do_test (0, 0, 2 << i, LARGECHAR, 1);
- do_test (0, 0, 2 << i, MIDCHAR, -1);
- do_test (0, 0, 2 << i, LARGECHAR, -1);
- do_test (0, CHARBYTES * i, 2 << i, MIDCHAR, 1);
- do_test (CHARBYTES * i, CHARBYTES * (i + 1), 2 << i, LARGECHAR, 1);
- }
-
- for (i = 1; i < 8; ++i)
- {
- do_test (CHARBYTES * i, 2 * CHARBYTES * i, 8 << i, MIDCHAR, 0);
- do_test (2 * CHARBYTES * i, CHARBYTES * i, 8 << i, LARGECHAR, 0);
- do_test (CHARBYTES * i, 2 * CHARBYTES * i, 8 << i, MIDCHAR, 1);
- do_test (2 * CHARBYTES * i, CHARBYTES * i, 8 << i, LARGECHAR, 1);
- do_test (CHARBYTES * i, 2 * CHARBYTES * i, 8 << i, MIDCHAR, -1);
- do_test (2 * CHARBYTES * i, CHARBYTES * i, 8 << i, LARGECHAR, -1);
- }
-
- do_random_tests ();
- return ret;
-}
-
-#include <support/test-driver.c>
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