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author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /string/test-memmove.c | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-zack/build-layout-experiment.tar glibc-zack/build-layout-experiment.tar.gz glibc-zack/build-layout-experiment.tar.bz2 glibc-zack/build-layout-experiment.zip |
Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'string/test-memmove.c')
-rw-r--r-- | string/test-memmove.c | 290 |
1 files changed, 0 insertions, 290 deletions
diff --git a/string/test-memmove.c b/string/test-memmove.c deleted file mode 100644 index 51f79f6eb4..0000000000 --- a/string/test-memmove.c +++ /dev/null @@ -1,290 +0,0 @@ -/* Test and measure memmove 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. - - 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 TEST_BCOPY -# define TEST_NAME "bcopy" -#else -# define TEST_NAME "memmove" -#endif -#include "test-string.h" - -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; - if (src < dst) - { - dst += n; - src += n; - while (n--) - *--dst = *--src; - } - else - while (n--) - *dst++ = *src++; - return ret; -} - -static void -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; - - res = CALL (impl, dst, src, len); - if (res != dst) - { - error (0, 0, "Wrong result in function %s %p %p", impl->name, - res, dst); - ret = 1; - return; - } -#endif - - if (memcmp (dst, orig_src, len) != 0) - { - error (0, 0, "Wrong result in function %s dst \"%s\" src \"%s\"", - impl->name, dst, src); - ret = 1; - return; - } -} - -static void -do_test (size_t align1, size_t align2, size_t len) -{ - size_t i, j; - char *s1, *s2; - - align1 &= 63; - if (align1 + len >= page_size) - return; - - align2 &= 63; - if (align2 + len >= page_size) - return; - - s1 = (char *) (buf1 + align1); - s2 = (char *) (buf2 + align2); - - for (i = 0, j = 1; i < len; i++, j += 23) - s1[i] = j; - - FOR_EACH_IMPL (impl, 0) - do_one_test (impl, s2, (char *) (buf2 + align1), s1, len); -} - -static void -do_random_tests (void) -{ - size_t i, n, align1, align2, len, size; - 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++) - { - if ((random () & 255) == 0) - size = 65536; - else - size = 512; - if (size > page_size) - size = page_size; - if ((random () & 3) == 0) - { - len = random () & (size - 1); - align1 = size - len - (random () & 31); - align2 = size - len - (random () & 31); - if (align1 > size) - align1 = 0; - if (align2 > size) - align2 = 0; - } - else - { - align1 = random () & (size / 2 - 1); - align2 = random () & (size / 2 - 1); - len = random () & (size - 1); - if (align1 + len > size) - align1 = size - len; - if (align2 + len > size) - align2 = size - len; - } - - p1 = buf1 + page_size - size; - p2 = buf2 + page_size - size; - c = random () & 255; - srcend = align1 + len + 256; - if (srcend > size) - srcend = size; - if (align1 > 256) - srcstart = align1 - 256; - else - srcstart = 0; - for (i = srcstart; i < srcend; ++i) - p1[i] = random () & 255; - dstend = align2 + len + 256; - if (dstend > size) - dstend = size; - if (align2 > 256) - dststart = align2 - 256; - else - dststart = 0; - - FOR_EACH_IMPL (impl, 1) - { - memset (p2 + dststart, c, dstend - dststart); - memcpy (p2 + srcstart, p1 + srcstart, srcend - srcstart); -#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)", - n, impl->name, align1, align2, len); - ret = 1; - } - for (i = dststart; i < dstend; ++i) - { - if (i >= align2 && i < align2 + len) - { - i = align2 + len - 1; - continue; - } - if (i >= srcstart && i < srcend) - { - i = srcend - 1; - continue; - } - if (p2[i] != c) - { - error (0, 0, "Iteration %zd - garbage in memset area, %s (%zd, %zd, %zd)", - n, impl->name, align1, align2, len); - ret = 1; - break; - } - } - - if (srcstart < align2 - && memcmp (p2 + srcstart, p1 + srcstart, - (srcend > align2 ? align2 : srcend) - srcstart)) - { - error (0, 0, "Iteration %zd - garbage before dst, %s (%zd, %zd, %zd)", - n, impl->name, align1, align2, len); - ret = 1; - break; - } - - i = srcstart > align2 + len ? srcstart : align2 + len; - if (srcend > align2 + len - && memcmp (p2 + i, p1 + i, srcend - i)) - { - error (0, 0, "Iteration %zd - garbage after dst, %s (%zd, %zd, %zd)", - n, impl->name, align1, align2, len); - ret = 1; - break; - } - } - } -} - -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 < 14; ++i) - { - do_test (0, 32, 1 << i); - do_test (32, 0, 1 << i); - do_test (0, i, 1 << i); - do_test (i, 0, 1 << i); - } - - for (i = 0; i < 32; ++i) - { - do_test (0, 32, i); - do_test (32, 0, i); - do_test (0, i, i); - do_test (i, 0, i); - } - - for (i = 3; i < 32; ++i) - { - if ((i & (i - 1)) == 0) - continue; - do_test (0, 32, 16 * i); - do_test (32, 0, 16 * i); - do_test (0, i, 16 * i); - do_test (i, 0, 16 * i); - } - - do_random_tests (); - return ret; -} - -#include <support/test-driver.c> |