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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. **********************************************************************/ #include #include #include #include #include "mem_routines.h" #include "test.h" #define TEST_MEM 10 * 1024 * 1024 #define TEST_LEN 8 * 1024 #define RAND_ALIGN 32 #define BORDER_BYTES (5 * RAND_ALIGN + 7) #ifndef RANDOMS #define RANDOMS 2000 #endif #ifndef TEST_SEED #define TEST_SEED 0x1234 #endif int main(int argc, char *argv[]) { int i, j, sign; long long r, l; void *buf = NULL; unsigned char *a; int failures = 0, ret_neg = 1; printf("mem_zero_detect_test %d bytes, %d randoms, seed=0x%x ", TEST_MEM, RANDOMS, TEST_SEED); if (posix_memalign(&buf, 64, TEST_MEM)) { printf("alloc error: Fail"); return -1; } srand(TEST_SEED); // Test full zero buffer memset(buf, 0, TEST_MEM); failures = isal_zero_detect(buf, TEST_MEM); if (failures) { printf("Fail large buf test\n"); goto exit; } #ifdef TEST_VERBOSE putchar('.'); #endif // Test to help memory checkers for (i = 1; i < 2345; i++) { uint8_t *newbuf = (uint8_t *) malloc(i); if (newbuf == NULL) { printf("Fail alloc test - not enough memory\n"); failures = -1; goto exit; } memset(newbuf, 0, i); failures = isal_zero_detect(newbuf, i); free(newbuf); if (failures) { printf("Fail alloc test\n"); goto exit; } } // Test small buffers for (i = 0; i < TEST_LEN; i++) { failures |= isal_zero_detect(buf, i); if (failures) { printf("Fail len=%d\n", i); goto exit; } } #ifdef TEST_VERBOSE putchar('.'); #endif // Test small buffers near end of alloc region a = buf; for (i = 0; i < TEST_LEN; i++) failures |= isal_zero_detect(&a[TEST_LEN - i], i); if (failures) { printf("Fail:\n"); goto exit; } #ifdef TEST_VERBOSE putchar('.'); #endif // Test for detect non zero a[TEST_MEM / 2] = 1; ret_neg = isal_zero_detect(a, TEST_MEM); if (ret_neg == 0) { printf("Fail on not detect\n"); failures = -1; goto exit; } a[TEST_MEM / 2] = 0; #ifdef TEST_VERBOSE putchar('.'); #endif // Test various non-zero offsets for (i = 0; i < BORDER_BYTES; i++) { for (j = 0; j < CHAR_BIT; j++) { a[i] = 1 << j; ret_neg = isal_zero_detect(a, TEST_MEM); if (ret_neg == 0) { printf("Fail on not detect offsets %d, %d\n", i, j); failures = -1; goto exit; } a[i] = 0; } } #ifdef TEST_VERBOSE putchar('.'); #endif fflush(0); // Test random non-zero offsets for (i = 0; i < RANDOMS; i++) { r = rand(); r = (r % TEST_LEN) ^ (r & (RAND_ALIGN - 1)); if (r >= TEST_LEN) continue; a[r] = 1 << (r & (CHAR_BIT - 1)); ret_neg = isal_zero_detect(a, TEST_MEM); if (ret_neg == 0) { printf("Fail on not detect rand %d, e=%lld\n", i, r); failures = -1; goto exit; } a[r] = 0; } #ifdef TEST_VERBOSE putchar('.'); #endif fflush(0); // Test putting non-zero byte at end of buffer for (i = 1; i < BORDER_BYTES; i++) { for (j = 0; j < CHAR_BIT; j++) { a[TEST_MEM - i] = 1 << j; ret_neg = isal_zero_detect(a, TEST_MEM); if (ret_neg == 0) { printf("Fail on not detect rand offset=%d, idx=%d\n", i, j); failures = -1; goto exit; } a[TEST_MEM - i] = 0; } } #ifdef TEST_VERBOSE putchar('.'); #endif // Test various size buffers and non-zero offsets for (l = 1; l < TEST_LEN; l++) { for (i = 0; i < l + BORDER_BYTES; i++) { failures = isal_zero_detect(a, l); if (failures) { printf("Fail on detect non-zero with l=%lld\n", l); goto exit; } a[i] = 1; ret_neg = isal_zero_detect(a, l); if ((i < l) && (ret_neg == 0)) { printf("Fail on non-zero buffer l=%lld err=%d\n", l, i); failures = -1; goto exit; } if ((i >= l) && (ret_neg != 0)) { printf("Fail on bad pass detect l=%lld err=%d\n", l, i); failures = -1; goto exit; } a[i] = 0; } } #ifdef TEST_VERBOSE putchar('.'); #endif // Test random test size and non-zero error offsets for (i = 0; i < RANDOMS; i++) { r = rand(); r = (r % TEST_LEN) ^ (r & (RAND_ALIGN - 1)); l = r + 1 + (rand() & (CHAR_BIT - 1)); a[r] = 1 << (r & (CHAR_BIT - 1)); ret_neg = isal_zero_detect(a, l); if (ret_neg == 0) { printf("Fail on not detect rand %d, l=%lld, e=%lld\n", i, l, r); failures = -1; goto exit; } a[r] = 0; } #ifdef TEST_VERBOSE putchar('.'); #endif fflush(0); // Test combinations of zero and non-zero buffers for (i = 0; i < RANDOMS; i++) { r = rand(); r = (r % TEST_LEN) ^ (r & (RAND_ALIGN - 1)); sign = rand() & 1 ? 1 : -1; l = r + sign * (rand() & (2 * RAND_ALIGN - 1)); if ((l >= TEST_LEN) || (l < 0) || (r >= TEST_LEN)) continue; a[r] = 1 << (r & (CHAR_BIT - 1)); ret_neg = isal_zero_detect(a, l); if ((r < l) && (ret_neg == 0)) { printf("Fail on non-zero rand buffer %d, l=%lld, e=%lld\n", i, l, r); failures = -1; goto exit; } if ((r >= l) && (ret_neg != 0)) { printf("Fail on bad pass zero detect rand %d, l=%lld, e=%lld\n", i, l, r); failures = -1; goto exit; } a[r] = 0; } #ifdef TEST_VERBOSE putchar('.'); #endif fflush(0); exit: aligned_free(buf); printf(failures == 0 ? " Pass\n" : " Fail\n"); return failures; }