plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 1 | /* |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 2 | * Copyright (C) 2000 Juan Quintela <quintela@fi.udc.es> |
| 3 | * Aaron Laffin <alaffin@sgi.com> |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 4 | * |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License |
| 7 | * as published by the Free Software Foundation; either version 2 |
| 8 | * of the License, or (at your option) any later version. |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 9 | * |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 14 | * |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
Cyril Hrubis | 5efee33 | 2013-06-04 20:14:58 +0200 | [diff] [blame] | 18 | * |
| 19 | * mmap001.c - Tests mmapping a big file and writing it once |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 20 | */ |
| 21 | #include <sys/types.h> |
| 22 | #include <sys/stat.h> |
| 23 | #include <fcntl.h> |
| 24 | #include <sys/mman.h> |
| 25 | #include <stdlib.h> |
| 26 | #include <stdio.h> |
| 27 | #include <unistd.h> |
| 28 | #include <errno.h> |
| 29 | #include <string.h> |
| 30 | |
| 31 | #include "test.h" |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 32 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 33 | char *TCID = "mmap001"; |
| 34 | int TST_TOTAL = 5; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 35 | static char *filename = NULL; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 36 | static int m_opt = 0; |
| 37 | static char *m_copt; |
| 38 | |
Cyril Hrubis | 5efee33 | 2013-06-04 20:14:58 +0200 | [diff] [blame] | 39 | static void cleanup(void) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 40 | { |
Cyril Hrubis | 5efee33 | 2013-06-04 20:14:58 +0200 | [diff] [blame] | 41 | free(filename); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 42 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 43 | tst_rmdir(); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 44 | } |
| 45 | |
Cyril Hrubis | 5efee33 | 2013-06-04 20:14:58 +0200 | [diff] [blame] | 46 | static void setup(void) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 47 | { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 48 | char buf[1024]; |
| 49 | /* |
| 50 | * setup a default signal hander and a |
| 51 | * temporary working directory. |
| 52 | */ |
| 53 | tst_sig(FORK, DEF_HANDLER, cleanup); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 54 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 55 | TEST_PAUSE; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 56 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 57 | tst_tmpdir(); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 58 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 59 | snprintf(buf, 1024, "testfile.%d", getpid()); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 60 | |
Garrett Cooper | 11d5104 | 2010-11-22 20:47:29 -0800 | [diff] [blame] | 61 | if ((filename = strdup(buf)) == NULL) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 62 | tst_brkm(TBROK | TERRNO, cleanup, "strdup failed"); |
Garrett Cooper | 11d5104 | 2010-11-22 20:47:29 -0800 | [diff] [blame] | 63 | } |
Garrett Cooper | 2c28215 | 2010-12-16 00:55:50 -0800 | [diff] [blame] | 64 | |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 65 | } |
| 66 | |
Cyril Hrubis | 5efee33 | 2013-06-04 20:14:58 +0200 | [diff] [blame] | 67 | static void help(void) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 68 | { |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 69 | printf(" -m x size of mmap in pages (default 1000)\n"); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 70 | } |
| 71 | |
| 72 | /* |
| 73 | * add the -m option whose parameter is the |
| 74 | * pages that should be mapped. |
| 75 | */ |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 76 | option_t options[] = { |
| 77 | {"m:", &m_opt, &m_copt}, |
| 78 | {NULL, NULL, NULL} |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 79 | }; |
| 80 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 81 | int main(int argc, char *argv[]) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 82 | { |
Cyril Hrubis | 7422562 | 2014-06-02 17:54:38 +0200 | [diff] [blame] | 83 | char *array; |
| 84 | const char *msg; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 85 | int i, lc; |
| 86 | int fd; |
| 87 | unsigned int pages, memsize; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 88 | |
Garrett Cooper | 45e285d | 2010-11-22 12:19:25 -0800 | [diff] [blame] | 89 | if ((msg = parse_opts(argc, argv, options, help)) != NULL) |
Garrett Cooper | 60fa801 | 2010-11-22 13:50:58 -0800 | [diff] [blame] | 90 | tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 91 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 92 | if (m_opt) { |
| 93 | memsize = pages = atoi(m_copt); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 94 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 95 | if (memsize < 1) { |
| 96 | tst_brkm(TBROK, cleanup, "Invalid arg for -m: %s", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 97 | m_copt); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 98 | } |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 99 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 100 | memsize *= getpagesize(); /* N PAGES */ |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 101 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 102 | } else { |
| 103 | /* |
| 104 | * default size 1000 pages; |
| 105 | */ |
| 106 | memsize = pages = 1000; |
| 107 | memsize *= getpagesize(); |
| 108 | } |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 109 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 110 | tst_resm(TINFO, "mmap()ing file of %u pages or %u bytes", pages, |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 111 | memsize); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 112 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 113 | setup(); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 114 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 115 | for (lc = 0; TEST_LOOPING(lc); lc++) { |
Caspar Zhang | d59a659 | 2013-03-07 14:59:12 +0800 | [diff] [blame] | 116 | tst_count = 0; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 117 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 118 | fd = open(filename, O_RDWR | O_CREAT, 0666); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 119 | if ((fd == -1)) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 120 | tst_brkm(TBROK | TERRNO, cleanup, |
| 121 | "opening %s failed", filename); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 122 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 123 | if (lseek(fd, memsize, SEEK_SET) != memsize) { |
Garrett Cooper | 11d5104 | 2010-11-22 20:47:29 -0800 | [diff] [blame] | 124 | TEST_ERRNO = errno; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 125 | close(fd); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 126 | tst_brkm(TBROK | TTERRNO, cleanup, "lseek failed"); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 127 | } |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 128 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 129 | if (write(fd, "\0", 1) != 1) { |
Garrett Cooper | 11d5104 | 2010-11-22 20:47:29 -0800 | [diff] [blame] | 130 | TEST_ERRNO = errno; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 131 | close(fd); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 132 | tst_brkm(TBROK | TTERRNO, cleanup, |
| 133 | "writing to %s failed", filename); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 134 | } |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 135 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 136 | array = mmap(0, memsize, PROT_WRITE, MAP_SHARED, fd, 0); |
Cyril Hrubis | 5efee33 | 2013-06-04 20:14:58 +0200 | [diff] [blame] | 137 | if (array == MAP_FAILED) { |
Garrett Cooper | 11d5104 | 2010-11-22 20:47:29 -0800 | [diff] [blame] | 138 | TEST_ERRNO = errno; |
| 139 | close(fd); |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 140 | tst_brkm(TBROK | TTERRNO, cleanup, |
| 141 | "mmapping %s failed", filename); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 142 | } else { |
| 143 | tst_resm(TPASS, "mmap() completed successfully."); |
| 144 | } |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 145 | |
Cyril Hrubis | e38b961 | 2014-06-02 17:20:57 +0200 | [diff] [blame] | 146 | tst_resm(TINFO, "touching mmaped memory"); |
Garrett Cooper | 11d5104 | 2010-11-22 20:47:29 -0800 | [diff] [blame] | 147 | |
Cyril Hrubis | e38b961 | 2014-06-02 17:20:57 +0200 | [diff] [blame] | 148 | for (i = 0; i < memsize; i++) { |
| 149 | array[i] = (char)i; |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 150 | } |
Cyril Hrubis | e38b961 | 2014-06-02 17:20:57 +0200 | [diff] [blame] | 151 | |
| 152 | /* |
| 153 | * seems that if the map area was bad, we'd get SEGV, |
| 154 | * hence we can indicate a PASS. |
| 155 | */ |
| 156 | tst_resm(TPASS, |
| 157 | "we're still here, mmaped area must be good"); |
| 158 | |
| 159 | TEST(msync(array, memsize, MS_SYNC)); |
| 160 | |
| 161 | if (TEST_RETURN == -1) { |
| 162 | tst_resm(TFAIL | TTERRNO, |
| 163 | "synchronizing mmapped page failed"); |
| 164 | } else { |
| 165 | tst_resm(TPASS, |
| 166 | "synchronizing mmapped page passed"); |
| 167 | } |
| 168 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 169 | TEST(munmap(array, memsize)); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 170 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 171 | if (TEST_RETURN == -1) { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 172 | tst_resm(TFAIL | TTERRNO, |
| 173 | "munmapping %s failed", filename); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 174 | } else { |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 175 | tst_resm(TPASS, "munmapping %s successful", filename); |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 176 | } |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 177 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 178 | close(fd); |
| 179 | unlink(filename); |
Garrett Cooper | 11d5104 | 2010-11-22 20:47:29 -0800 | [diff] [blame] | 180 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 181 | } |
| 182 | cleanup(); |
Garrett Cooper | 11d5104 | 2010-11-22 20:47:29 -0800 | [diff] [blame] | 183 | tst_exit(); |
Chris Dearman | ec6edca | 2012-10-17 19:54:01 -0700 | [diff] [blame] | 184 | } |