1 /* 2 * 3 * Copyright (c) International Business Machines Corp., 2002 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 20 /* 21 * NAME 22 * mlock01.c 23 * 24 * DESCRIPTION 25 * Test to see that mlock works 26 *$ 27 * ALGORITHM 28 * test 1: 29 * Call mlock with various valid addresses and lengths. No 30 * error should be returned 31 * 32 * USAGE: <for command-line> 33 * -c n Run n copies concurrently 34 * -e Turn on errno logging 35 * -f Turn off functional testing 36 * -h Show this help screen 37 * -i n Execute test n times 38 * -I x Execute test for x seconds 39 * -p Pause for SIGUSR1 before starting 40 * -P x Pause for x seconds between iterations 41 * -t Turn on syscall timing 42 * 43 * HISTORY 44 * 06/2002 Written by Paul Larson 45 * 46 * RESTRICTIONS 47 * None 48 */ 49 #include <errno.h> 50 #include <unistd.h> 51 #include <sys/mman.h> 52 #include "test.h" 53 54 void setup(); 55 void setup1(int); 56 void cleanup(); 57 58 char *TCID = "mlock01"; 59 int TST_TOTAL = 4; 60 61 void *addr1; 62 63 struct test_case_t { 64 void **addr; 65 int len; 66 void (*setupfunc) (); 67 } TC[] = { 68 /* mlock should return ENOMEM when some or all of the address 69 * range pointed to by addr and len are not valid mapped pages 70 * in the address space of the process 71 */ 72 { 73 &addr1, 1, setup1}, { 74 &addr1, 1024, setup1}, { 75 &addr1, 1024 * 1024, setup1}, { 76 &addr1, 1024 * 1024 * 10, setup1} 77 }; 78 79 #if !defined(UCLINUX) 80 81 int main(int ac, char **av) 82 { 83 int lc, i; 84 85 tst_parse_opts(ac, av, NULL, NULL); 86 87 setup(); 88 89 /* 90 * FIXME (garrcoop): this should really test out whether or not the 91 * process's mappable address space is indeed accessible by the 92 * current user, instead of needing to be run by root all the time. 93 */ 94 tst_require_root(); 95 96 for (lc = 0; TEST_LOOPING(lc); lc++) { 97 98 tst_count = 0; 99 100 for (i = 0; i < TST_TOTAL; i++) { 101 102 if (TC[i].setupfunc != NULL) 103 TC[i].setupfunc(TC[i].len); 104 105 TEST(mlock(*(TC[i].addr), TC[i].len)); 106 107 /* I'm confused -- given the description above this 108 * should fail as designed, but this application 109 * */ 110 if (TEST_RETURN == -1) 111 tst_resm(TFAIL | TTERRNO, "mlock failed"); 112 else 113 tst_resm(TPASS, "mlock passed"); 114 } 115 } 116 117 cleanup(); 118 119 tst_exit(); 120 } 121 122 #else 123 124 int main(void) 125 { 126 tst_brkm(TCONF, NULL, "test is not available on uClinux"); 127 } 128 129 #endif /* if !defined(UCLINUX) */ 130 131 void setup(void) 132 { 133 TEST_PAUSE; 134 } 135 136 void setup1(int len) 137 { 138 addr1 = malloc(len); 139 if (addr1 == NULL) 140 tst_brkm(TFAIL, cleanup, "malloc failed"); 141 } 142 143 void cleanup(void) 144 { 145 } 146