diff options
Diffstat (limited to 'string/test-memcpy.c')
-rw-r--r-- | string/test-memcpy.c | 167 |
1 files changed, 141 insertions, 26 deletions
diff --git a/string/test-memcpy.c b/string/test-memcpy.c index c9e965bed3..3b0f3127b7 100644 --- a/string/test-memcpy.c +++ b/string/test-memcpy.c @@ -17,6 +17,7 @@ <https://www.gnu.org/licenses/>. */ #ifndef MEMCPY_RESULT +# define DO_EXTRA_TESTS # define MEMCPY_RESULT(dst, len) dst # define MIN_PAGE_SIZE 131072 # define TEST_MAIN @@ -78,7 +79,7 @@ do_one_test (impl_t *impl, char *dst, const char *src, static void do_test (size_t align1, size_t align2, size_t len) { - size_t i, j; + size_t i, j, repeats; char *s1, *s2; align1 &= 4095; @@ -91,12 +92,14 @@ do_test (size_t align1, size_t align2, size_t len) s1 = (char *) (buf1 + align1); s2 = (char *) (buf2 + align2); + for (repeats = 0; repeats < 2; ++repeats) + { + for (i = 0, j = 1; i < len; i++, j += 23) + s1[i] = j; - for (i = 0, j = 1; i < len; i++, j += 23) - s1[i] = j; - - FOR_EACH_IMPL (impl, 0) - do_one_test (impl, s2, s1, len); + FOR_EACH_IMPL (impl, 0) + do_one_test (impl, s2, s1, len); + } } static void @@ -212,56 +215,87 @@ do_random_tests (void) } static void -do_test1 (size_t size) +do_test1 (size_t align1, size_t align2, size_t size) { void *large_buf; - large_buf = mmap (NULL, size * 2 + page_size, PROT_READ | PROT_WRITE, - MAP_PRIVATE | MAP_ANON, -1, 0); + size_t mmap_size, region_size; + + align1 &= (page_size - 1); + if (align1 == 0) + align1 = page_size; + + align2 &= (page_size - 1); + if (align2 == 0) + align2 = page_size; + + region_size = (size + page_size - 1) & (~(page_size - 1)); + + mmap_size = region_size * 2 + 3 * page_size; + large_buf = mmap(NULL, mmap_size, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANON, -1, 0); if (large_buf == MAP_FAILED) { - puts ("Failed to allocat large_buf, skipping do_test1"); + puts ("Failed to allocate large_buf, skipping do_test1"); return; } - - if (mprotect (large_buf + size, page_size, PROT_NONE)) + if (mprotect (large_buf + region_size + page_size, page_size, PROT_NONE)) error (EXIT_FAILURE, errno, "mprotect failed"); - size_t arrary_size = size / sizeof (uint32_t); - uint32_t *dest = large_buf; - uint32_t *src = large_buf + size + page_size; + size_t array_size = size / sizeof (uint32_t); + uint32_t *dest = large_buf + align1; + uint32_t *src = large_buf + region_size + 2 * page_size + align2; size_t i; size_t repeats; for(repeats = 0; repeats < 2; repeats++) { - for (i = 0; i < arrary_size; i++) + for (i = 0; i < array_size; i++) src[i] = (uint32_t) i; - FOR_EACH_IMPL (impl, 0) { - printf ("\t\tRunning: %s\n", impl->name); memset (dest, -1, size); CALL (impl, (char *) dest, (char *) src, size); - for (i = 0; i < arrary_size; i++) + for (i = 0; i < array_size; i++) if (dest[i] != src[i]) { error (0, 0, "Wrong result in function %s dst \"%p\" src \"%p\" offset \"%zd\"", impl->name, dest, src, i); ret = 1; - munmap ((void *) large_buf, size * 2 + page_size); + munmap ((void *) large_buf, mmap_size); return; } } - dest = src; - src = large_buf; + dest = large_buf + region_size + 2 * page_size + align1; + src = large_buf + align2; + } + munmap ((void *) large_buf, mmap_size); +} + +static void +do_random_large_tests (void) +{ + size_t i, align1, align2, size; + for (i = 0; i < 32; ++i) + { + align1 = random (); + align2 = random (); + size = (random() % 0x1000000) + 0x200000; + do_test1 (align1, align2, size); + } + + for (i = 0; i < 128; ++i) + { + align1 = random (); + align2 = random (); + size = (random() % 32768) + 4096; + do_test1 (align1, align2, size); } - munmap ((void *) large_buf, size * 2 + page_size); } int test_main (void) { - size_t i; + size_t i, j; test_init (); @@ -298,6 +332,7 @@ test_main (void) for (i = 19; i <= 25; ++i) { do_test (255, 0, 1 << i); + do_test (0, 4000, 1 << i); do_test (0, 255, i); do_test (0, 4000, i); } @@ -306,8 +341,88 @@ test_main (void) do_random_tests (); - do_test1 (0x100000); - do_test1 (0x2000000); + do_test1 (0, 0, 0x100000); + do_test1 (0, 0, 0x2000000); + + for (i = 4096; i < 32768; i += 4096) + { + for (j = 1; j <= 1024; j <<= 1) + { + do_test1 (0, j, i); + do_test1 (4095, j, i); + do_test1 (4096 - j, 0, i); + + do_test1 (0, j - 1, i); + do_test1 (4095, j - 1, i); + do_test1 (4096 - j - 1, 0, i); + + do_test1 (0, j + 1, i); + do_test1 (4095, j + 1, i); + do_test1 (4096 - j, 1, i); + } + } + + for (i = 0x300000; i < 0x2000000; i += 0x235689) + { + for (j = 64; j <= 1024; j <<= 1) + { + do_test1 (0, j, i); + do_test1 (4095, j, i); + do_test1 (4096 - j, 0, i); + + do_test1 (0, j - 1, i); + do_test1 (4095, j - 1, i); + do_test1 (4096 - j - 1, 0, i); + + do_test1 (0, j + 1, i); + do_test1 (4095, j + 1, i); + do_test1 (4096 - j, 1, i); + } + } +#ifdef DO_EXTRA_TESTS + for (i = 0x200000; i <= 0x2000000; i += i) + { + for (j = 64; j <= 1024; j <<= 1) + { + do_test1 (0, j, i); + do_test1 (4095, j, i); + do_test1 (4096 - j, 0, i); + + do_test1 (0, j - 1, i); + do_test1 (4095, j - 1, i); + do_test1 (4096 - j - 1, 0, i); + + do_test1 (0, j + 1, i); + do_test1 (4095, j + 1, i); + do_test1 (4096 - j, 1, i); + + do_test1 (0, j, i + 1); + do_test1 (4095, j, i + 1); + do_test1 (4096 - j, 0, i + 1); + + do_test1 (0, j - 1, i + 1); + do_test1 (4095, j - 1, i + 1); + do_test1 (4096 - j - 1, 0, i + 1); + + do_test1 (0, j + 1, i + 1); + do_test1 (4095, j + 1, i + 1); + do_test1 (4096 - j, 1, i + 1); + + do_test1 (0, j, i - 1); + do_test1 (4095, j, i - 1); + do_test1 (4096 - j, 0, i - 1); + + do_test1 (0, j - 1, i - 1); + do_test1 (4095, j - 1, i - 1); + do_test1 (4096 - j - 1, 0, i - 1); + + do_test1 (0, j + 1, i - 1); + do_test1 (4095, j + 1, i - 1); + do_test1 (4096 - j, 1, i - 1); + } + } +#endif + do_random_large_tests (); return ret; } |