/* Test and measure memmove functions.
- Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1999-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Jakub Jelinek <jakub@redhat.com>, 1999.
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. */
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
#define TEST_MAIN
+#ifdef TEST_BCOPY
+# define TEST_NAME "bcopy"
+#else
+# define TEST_NAME "memmove"
+#endif
#include "test-string.h"
+#include <support/test-driver.h>
-typedef char *(*proto_t) (char *, const char *, size_t);
char *simple_memmove (char *, const char *, size_t);
+#ifdef TEST_BCOPY
+typedef void (*proto_t) (const char *, char *, size_t);
+void simple_bcopy (const char *, char *, size_t);
+
+IMPL (simple_bcopy, 0)
+IMPL (bcopy, 1)
+
+void
+simple_bcopy (const char *src, char *dst, size_t n)
+{
+ simple_memmove (dst, src, n);
+}
+#else
+typedef char *(*proto_t) (char *, const char *, size_t);
+
IMPL (simple_memmove, 0)
IMPL (memmove, 1)
+#endif
char *
+inhibit_loop_to_libcall
simple_memmove (char *dst, const char *src, size_t n)
{
char *ret = dst;
do_one_test (impl_t *impl, char *dst, char *src, const char *orig_src,
size_t len)
{
+ /* This also clears the destination buffer set by the previous run. */
+ memcpy (src, orig_src, len);
+#ifdef TEST_BCOPY
+ CALL (impl, src, dst, len);
+#else
char *res;
- memcpy (src, orig_src, len);
res = CALL (impl, dst, src, len);
if (res != dst)
{
ret = 1;
return;
}
+#endif
if (memcmp (dst, orig_src, len) != 0)
{
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, len);
- HP_TIMING_NOW (stop);
- HP_TIMING_BEST (best_time, start, stop);
- }
-
- printf ("\t%zd", (size_t) best_time);
- }
}
static void
if (align2 + len >= page_size)
return;
- s1 = buf1 + align1;
- s2 = buf2 + align2;
+ s1 = (char *) (buf1 + align1);
+ s2 = (char *) (buf2 + align2);
for (i = 0, j = 1; i < len; i++, j += 23)
s1[i] = j;
- if (HP_TIMING_AVAIL)
- printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2);
-
FOR_EACH_IMPL (impl, 0)
- do_one_test (impl, s2, buf2 + align1, s1, len);
-
- if (HP_TIMING_AVAIL)
- putchar ('\n');
+ do_one_test (impl, s2, (char *) (buf2 + align1), s1, len);
}
static void
size_t srcstart, srcend, dststart, dstend;
int c;
unsigned char *p1, *p2;
+#ifndef TEST_BCOPY
unsigned char *res;
+#endif
for (n = 0; n < ITERATIONS; n++)
{
{
memset (p2 + dststart, c, dstend - dststart);
memcpy (p2 + srcstart, p1 + srcstart, srcend - srcstart);
- res = CALL (impl, p2 + align2, p2 + align1, len);
+#ifdef TEST_BCOPY
+ CALL (impl, (char *) (p2 + align1), (char *) (p2 + align2), len);
+#else
+ res = (unsigned char *) CALL (impl,
+ (char *) (p2 + align2),
+ (char *) (p2 + align1), len);
if (res != p2 + align2)
{
error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd) %p != %p",
n, impl->name, align1, align2, len, res, p2 + align2);
ret = 1;
}
+#endif
if (memcmp (p1 + align1, p2 + align2, len))
{
error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd)",
}
}
+static void
+do_test2 (void)
+{
+ size_t size = 0x20000000;
+ uint32_t * large_buf;
+
+ large_buf = mmap ((void*) 0x70000000, size, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANON, -1, 0);
+
+ if (large_buf == MAP_FAILED)
+ error (EXIT_UNSUPPORTED, errno, "Large mmap failed");
+
+ if ((uintptr_t) large_buf > 0x80000000 - 128
+ || 0x80000000 - (uintptr_t) large_buf > 0x20000000)
+ {
+ error (0, 0, "Large mmap allocated improperly");
+ ret = EXIT_UNSUPPORTED;
+ munmap ((void *) large_buf, size);
+ return;
+ }
+
+ size_t bytes_move = 0x80000000 - (uintptr_t) large_buf;
+ size_t arr_size = bytes_move / sizeof (uint32_t);
+ size_t i;
+
+ FOR_EACH_IMPL (impl, 0)
+ {
+ for (i = 0; i < arr_size; i++)
+ large_buf[i] = (uint32_t) i;
+
+ uint32_t * dst = &large_buf[33];
+
+#ifdef TEST_BCOPY
+ CALL (impl, (char *) large_buf, (char *) dst, bytes_move);
+#else
+ CALL (impl, (char *) dst, (char *) large_buf, bytes_move);
+#endif
+
+ for (i = 0; i < arr_size; i++)
+ {
+ if (dst[i] != (uint32_t) i)
+ {
+ error (0, 0,
+ "Wrong result in function %s dst \"%p\" src \"%p\" offset \"%zd\"",
+ impl->name, dst, large_buf, i);
+ ret = 1;
+ break;
+ }
+ }
+ }
+
+ munmap ((void *) large_buf, size);
+}
+
int
test_main (void)
{
}
do_random_tests ();
+
+ do_test2 ();
+
return ret;
}
-#include "../test-skeleton.c"
+#include <support/test-driver.c>
projects / thirdparty / glibc.git / blobdiff