| Dmitry V. Levin | dfea1da | 2016-01-29 01:51:54 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org> |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote products |
| 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 17 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 18 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 19 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 21 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 22 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 23 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 25 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | #include "tests.h" |
| 29 | #include <stdio.h> |
| 30 | #include <sys/mman.h> |
| 31 | |
| 32 | #define DEFAULT_STRLEN 32 |
| 33 | |
| 34 | static void |
| 35 | test_mincore(const unsigned int pages) |
| 36 | { |
| 37 | const size_t size = pages * get_page_size(); |
| 38 | char *addr = tail_alloc(size); |
| 39 | unsigned char *vec = tail_alloc(pages); |
| 40 | unsigned int i; |
| 41 | |
| 42 | if (mincore(addr, size, vec)) |
| 43 | perror_msg_and_skip("mincore"); |
| 44 | printf("mincore(%p, %zu, [", addr, size); |
| 45 | for (i = 0; i < pages; ++i) { |
| 46 | if (i >= DEFAULT_STRLEN) { |
| 47 | printf("..."); |
| 48 | break; |
| 49 | } |
| 50 | printf("%u", vec[i] & 1); |
| 51 | } |
| 52 | puts("]) = 0"); |
| 53 | } |
| 54 | |
| 55 | int main(void) |
| 56 | { |
| 57 | test_mincore(1); |
| 58 | test_mincore(2); |
| 59 | test_mincore(DEFAULT_STRLEN + 1); |
| 60 | |
| 61 | puts("+++ exited with 0 +++"); |
| 62 | return 0; |
| 63 | } |