From 81cbc3bcaed730aa5d9e5d4ec46a0d4cb9eb6cd5 Mon Sep 17 00:00:00 2001 From: noah Date: Sat, 3 Apr 2021 04:12:16 -0400 Subject: [PATCH] x86: Expanding test-memmove.c, test-memcpy.c, bench-memcpy-large.c No Bug. This commit expanding the range of tests / benchmarks for memmove and memcpy. The test expansion is mostly in the vein of increasing the maximum size, increasing the number of unique alignments tested, and testing both source < destination and vice versa. The benchmark expansaion is just to increase the number of unique alignments. test-memcpy, test-memccpy, test-mempcpy, test-memmove, and tst-memmove-overflow all pass. Signed-off-by: Noah Goldstein --- benchtests/bench-memcpy-large.c | 8 +++-- string/test-memcpy.c | 61 ++++++++++++++++++-------------- string/test-memmove.c | 62 ++++++++++++++++++++------------- 3 files changed, 79 insertions(+), 52 deletions(-) diff --git a/benchtests/bench-memcpy-large.c b/benchtests/bench-memcpy-large.c index 3df1575514..efb9627b1e 100644 --- a/benchtests/bench-memcpy-large.c +++ b/benchtests/bench-memcpy-large.c @@ -57,11 +57,11 @@ do_test (json_ctx_t *json_ctx, size_t align1, size_t align2, size_t len) size_t i, j; char *s1, *s2; - align1 &= 63; + align1 &= 4095; if (align1 + len >= page_size) return; - align2 &= 63; + align2 &= 4095; if (align2 + len >= page_size) return; @@ -113,6 +113,10 @@ test_main (void) do_test (&json_ctx, 0, 3, i + 15); do_test (&json_ctx, 3, 0, i + 31); do_test (&json_ctx, 3, 5, i + 63); + do_test (&json_ctx, 0, 127, i); + do_test (&json_ctx, 0, 255, i); + do_test (&json_ctx, 0, 256, i); + do_test (&json_ctx, 0, 4064, i); } json_array_end (&json_ctx); diff --git a/string/test-memcpy.c b/string/test-memcpy.c index 2e9c6bd099..c9dfc88fed 100644 --- a/string/test-memcpy.c +++ b/string/test-memcpy.c @@ -82,11 +82,11 @@ do_test (size_t align1, size_t align2, size_t len) size_t i, j; char *s1, *s2; - align1 &= 63; + align1 &= 4095; if (align1 + len >= page_size) return; - align2 &= 63; + align2 &= 4095; if (align2 + len >= page_size) return; @@ -213,11 +213,9 @@ do_random_tests (void) } static void -do_test1 (void) +do_test1 (size_t size) { - size_t size = 0x100000; void *large_buf; - large_buf = mmap (NULL, size * 2 + page_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0); if (large_buf == MAP_FAILED) @@ -233,27 +231,32 @@ do_test1 (void) uint32_t *dest = large_buf; uint32_t *src = large_buf + size + page_size; size_t i; - - for (i = 0; i < arrary_size; i++) - src[i] = (uint32_t) i; - - FOR_EACH_IMPL (impl, 0) + size_t repeats; + for(repeats = 0; repeats < 2; repeats++) { - memset (dest, -1, size); - CALL (impl, (char *) dest, (char *) src, size); for (i = 0; i < arrary_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; - break; - } - } + src[i] = (uint32_t) i; - munmap ((void *) dest, size); - munmap ((void *) src, size); + 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++) + 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); + return; + } + } + dest = src; + src = large_buf; + } + munmap ((void *) large_buf, size * 2 + page_size); } int @@ -275,7 +278,6 @@ test_main (void) do_test (0, i, 1 << i); do_test (i, i, 1 << i); } - for (i = 0; i < 32; ++i) { do_test (0, 0, i); @@ -294,12 +296,19 @@ test_main (void) do_test (i, i, 16 * i); } + for (i = 19; i <= 25; ++i) + { + do_test (255, 0, 1 << i); + do_test (0, 255, i); + do_test (0, 4000, i); + } + do_test (0, 0, getpagesize ()); do_random_tests (); - do_test1 (); - + do_test1 (0x100000); + do_test1 (0x2000000); return ret; } diff --git a/string/test-memmove.c b/string/test-memmove.c index 2e3ce75b9b..2e665fa3a5 100644 --- a/string/test-memmove.c +++ b/string/test-memmove.c @@ -247,7 +247,7 @@ do_random_tests (void) } static void -do_test2 (void) +do_test2 (size_t offset) { size_t size = 0x20000000; uint32_t * large_buf; @@ -268,33 +268,45 @@ do_test2 (void) } size_t bytes_move = 0x80000000 - (uintptr_t) large_buf; + if (bytes_move + offset * sizeof (uint32_t) > size) + { + munmap ((void *) large_buf, size); + return; + } size_t arr_size = bytes_move / sizeof (uint32_t); size_t i; - - FOR_EACH_IMPL (impl, 0) + size_t repeats; + uint32_t * src = large_buf; + uint32_t * dst = &large_buf[offset]; + for (repeats = 0; repeats < 2; ++repeats) { - for (i = 0; i < arr_size; i++) - large_buf[i] = (uint32_t) i; + FOR_EACH_IMPL (impl, 0) + { + for (i = 0; i < arr_size; i++) + src[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 + #ifdef TEST_BCOPY + CALL (impl, (char *) src, (char *) dst, bytes_move); + #else + CALL (impl, (char *) dst, (char *) src, 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; - } - } + 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; + munmap ((void *) large_buf, size); + return; + } + } + } + src = dst; + dst = large_buf; } munmap ((void *) large_buf, size); @@ -340,8 +352,10 @@ test_main (void) do_random_tests (); - do_test2 (); - + do_test2 (33); + do_test2 (0x200000); + do_test2 (0x4000000 - 1); + do_test2 (0x4000000); return ret; }