plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Copyright (c) International Business Machines Corp., 2001 |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 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 |
| 13 | * the GNU General Public License for more details. |
| 14 | * |
| 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 |
| 18 | */ |
| 19 | |
| 20 | /* |
| 21 | * Test Name: mremap02 |
| 22 | * |
| 23 | * Test Description: |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 24 | * Verify that, |
| 25 | * mremap() fails when used to expand the existing virtual memory mapped |
| 26 | * region to the requested size, if the virtual memory area previously |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 27 | * mapped was not page aligned or invalid argument specified. |
| 28 | * |
| 29 | * Expected Result: |
| 30 | * mremap() should return -1 and set errno to EINVAL. |
| 31 | * |
| 32 | * Algorithm: |
| 33 | * Setup: |
| 34 | * Setup signal handling. |
| 35 | * Pause for SIGUSR1 if option specified. |
| 36 | * |
| 37 | * Test: |
| 38 | * Loop if the proper options are given. |
| 39 | * Execute system call |
| 40 | * Check return code, if system call failed (return=-1) |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 41 | * if errno set == expected errno |
| 42 | * Issue sys call fails with expected return value and errno. |
| 43 | * Otherwise, |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 44 | * Issue sys call fails with unexpected errno. |
| 45 | * Otherwise, |
| 46 | * Issue sys call returns unexpected value. |
| 47 | * |
| 48 | * Cleanup: |
| 49 | * Print errno log and/or timing stats if options given |
| 50 | * |
| 51 | * Usage: <for command-line> |
| 52 | * mremap02 [-c n] [-e] [-i n] [-I x] [-P x] [-t] |
| 53 | * where, -c n : Run n copies concurrently. |
| 54 | * -e : Turn on errno logging. |
| 55 | * -i n : Execute test n times. |
| 56 | * -I x : Execute test for x seconds. |
| 57 | * -p x : Pause for x seconds between iterations. |
| 58 | * -t : Turn on syscall timing. |
| 59 | * |
| 60 | * HISTORY |
| 61 | * 07/2001 Ported by Wayne Boyer |
| 62 | * |
iyermanoj | 874176f | 2001-11-09 07:07:02 +0000 | [diff] [blame] | 63 | * 11/09/2001 Manoj Iyer (manjo@austin.ibm.com) |
| 64 | * Modified. |
| 65 | * - #include <linux/mman.h> should not be included as per man page for |
| 66 | * mremap, #include <sys/mman.h> alone should do the job. But inorder |
| 67 | * to include definition of MREMAP_MAYMOVE defined in bits/mman.h |
| 68 | * (included by sys/mman.h) __USE_GNU needs to be defined. |
| 69 | * There may be a more elegant way of doing this... |
| 70 | * |
| 71 | * |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 72 | * RESTRICTIONS: |
| 73 | * None. |
| 74 | */ |
| 75 | #include <errno.h> |
| 76 | #include <unistd.h> |
| 77 | #include <fcntl.h> |
iyermanoj | 874176f | 2001-11-09 07:07:02 +0000 | [diff] [blame] | 78 | #define __USE_GNU |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 79 | #include <sys/mman.h> |
iyermanoj | 874176f | 2001-11-09 07:07:02 +0000 | [diff] [blame] | 80 | #undef __USE_GNU |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 81 | |
| 82 | #include "test.h" |
| 83 | #include "usctest.h" |
| 84 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 85 | char *TCID = "mremap02"; /* Test program identifier. */ |
| 86 | int TST_TOTAL = 1; /* Total number of test cases. */ |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 87 | extern int Tst_count; /* Test Case counter for tst_* routines */ |
| 88 | char *addr; /* addr of memory mapped region */ |
| 89 | int memsize; /* memory mapped size */ |
| 90 | int newsize; /* new size of virtual memory block */ |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 91 | int exp_enos[] = { EINVAL, 0 }; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 92 | |
| 93 | void setup(); /* Main setup function of test */ |
| 94 | void cleanup(); /* cleanup function for the test */ |
| 95 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 96 | int main(int ac, char **av) |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 97 | { |
| 98 | int lc; /* loop counter */ |
| 99 | char *msg; /* message returned from parse_opts */ |
subrata_modak | bdbaec5 | 2009-02-26 12:14:51 +0000 | [diff] [blame] | 100 | |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 101 | /* Parse standard options given to run the test. */ |
Garrett Cooper | 45e285d | 2010-11-22 12:19:25 -0800 | [diff] [blame] | 102 | msg = parse_opts(ac, av, NULL, NULL); |
| 103 | if (msg != NULL) { |
Garrett Cooper | 60fa801 | 2010-11-22 13:50:58 -0800 | [diff] [blame^] | 104 | tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | /* Perform global setup for test */ |
| 108 | setup(); |
| 109 | |
| 110 | /* set the expected errnos... */ |
| 111 | TEST_EXP_ENOS(exp_enos); |
| 112 | |
| 113 | /* Check looping state if -i option given */ |
| 114 | for (lc = 0; TEST_LOOPING(lc); lc++) { |
| 115 | |
| 116 | /* Reset Tst_count in case we are looping. */ |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 117 | Tst_count = 0; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 118 | |
subrata_modak | 4bb656a | 2009-02-26 12:02:09 +0000 | [diff] [blame] | 119 | /* |
| 120 | * Attempt to expand the existing mapped |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 121 | * memory region (memsize) by newsize limits using |
| 122 | * mremap() should fail as old virtual address is not |
| 123 | * page aligned. |
| 124 | */ |
robbiew | d5c2112 | 2002-03-22 16:22:40 +0000 | [diff] [blame] | 125 | errno = 0; |
| 126 | addr = mremap(addr, memsize, newsize, MREMAP_MAYMOVE); |
| 127 | TEST_ERRNO = errno; |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 128 | |
| 129 | /* Check for the return value of mremap() */ |
robbiew | d5c2112 | 2002-03-22 16:22:40 +0000 | [diff] [blame] | 130 | if (addr != MAP_FAILED) { |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 131 | tst_resm(TFAIL, |
| 132 | "mremap returned invalid value, expected: -1"); |
| 133 | |
| 134 | /* Unmap the mapped memory region */ |
robbiew | d5c2112 | 2002-03-22 16:22:40 +0000 | [diff] [blame] | 135 | if (munmap(addr, newsize) != 0) { |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 136 | tst_brkm(TBROK, cleanup, "munmap fails to " |
| 137 | "unmap the expanded memory region, " |
| 138 | "error=%d", errno); |
| 139 | } |
| 140 | continue; |
| 141 | } |
| 142 | |
| 143 | TEST_ERROR_LOG(TEST_ERRNO); |
| 144 | |
| 145 | if (errno == EINVAL) { |
| 146 | tst_resm(TPASS, "mremap() Failed, 'invalid argument " |
| 147 | "specified' - errno %d", TEST_ERRNO); |
| 148 | } else { |
| 149 | tst_resm(TFAIL, "mremap() Failed, " |
| 150 | "'Unexpected errno %d", TEST_ERRNO); |
| 151 | } |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 152 | } /* End of TEST_LOOPING */ |
| 153 | |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 154 | /* Call cleanup() to undo setup done for the test. */ |
| 155 | cleanup(); |
| 156 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 157 | /*NOTREACHED*/ return 0; |
robbiew | 0983008 | 2003-03-26 23:18:32 +0000 | [diff] [blame] | 158 | |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 159 | } /* End main */ |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 160 | |
| 161 | /* |
| 162 | * setup() - performs all ONE TIME setup for this test. |
| 163 | * |
| 164 | * Get system page size, Set the size of virtual memory area and the |
| 165 | * new size after resize, Set the virtual memory address such that it |
| 166 | * is not aligned. |
| 167 | */ |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 168 | void setup() |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 169 | { |
| 170 | /* capture signals */ |
| 171 | tst_sig(FORK, DEF_HANDLER, cleanup); |
| 172 | |
| 173 | /* Pause if that option was specified */ |
| 174 | TEST_PAUSE; |
| 175 | |
| 176 | /* Get the system page size */ |
| 177 | if ((memsize = getpagesize()) < 0) { |
| 178 | tst_brkm(TFAIL, tst_exit, |
| 179 | "getpagesize() fails to get system page size"); |
| 180 | } |
| 181 | |
| 182 | /* Get the New size of virtual memory block after resize */ |
| 183 | newsize = (memsize * 2); |
| 184 | |
| 185 | /* Set the old virtual memory address */ |
| 186 | addr = (char *)(addr + (memsize - 1)); |
| 187 | } |
| 188 | |
| 189 | /* |
| 190 | * cleanup() - performs all ONE TIME cleanup for this test at |
| 191 | * completion or premature exit. |
| 192 | */ |
subrata_modak | 56207ce | 2009-03-23 13:35:39 +0000 | [diff] [blame] | 193 | void cleanup() |
plars | 865695b | 2001-08-27 22:15:12 +0000 | [diff] [blame] | 194 | { |
| 195 | /* |
| 196 | * print timing stats if that option was specified. |
| 197 | * print errno log if that option was specified. |
| 198 | */ |
| 199 | TEST_CLEANUP; |
| 200 | |
| 201 | /* Exit the program */ |
| 202 | tst_exit(); |
| 203 | } |