| /* |
| * Copyright (C) 2012 FUJITSU LIMITED. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <unistd.h> |
| #include <sys/shm.h> |
| #include <sys/mman.h> |
| #include <fcntl.h> |
| |
| #include "test.h" |
| #include "usctest.h" |
| |
| char *TCID = "madvise04"; |
| |
| #ifdef MADV_DONTDUMP |
| |
| /* Uncomment the following line in DEBUG mode */ |
| //#define MM_DEBUG 1 |
| |
| int TST_TOTAL = 2; |
| |
| #define BUFFER_SIZE 256 |
| |
| static void setup(void); |
| static void cleanup(void); |
| static void check_and_print(char *advice); |
| |
| int main(int argc, char *argv[]) |
| { |
| int lc, fd; |
| int i; |
| char *file = NULL; |
| struct stat stat; |
| |
| char *msg = NULL; |
| char filename[64]; |
| char *progname = NULL; |
| char *str_for_file = "abcdefghijklmnopqrstuvwxyz12345\n"; |
| |
| msg = parse_opts(argc, argv, NULL, NULL); |
| if (msg) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| setup(); |
| |
| progname = *argv; |
| sprintf(filename, "%s-out.%d", progname, getpid()); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| Tst_count = 0; |
| |
| fd = open(filename, O_RDWR | O_CREAT, 0664); |
| if (fd < 0) |
| tst_brkm(TBROK, cleanup, "open failed"); |
| #ifdef MM_DEBUG |
| tst_resm(TINFO, "filename = %s opened successfully", filename); |
| #endif |
| |
| /* Writing 40 KB of random data into this file |
| [32 * 1280 = 40960] */ |
| for (i = 0; i < 1280; i++) |
| if (write(fd, str_for_file, strlen(str_for_file)) == -1) |
| tst_brkm(TBROK | TERRNO, cleanup, |
| "write failed"); |
| |
| if (fstat(fd, &stat) == -1) |
| tst_brkm(TBROK, cleanup, "fstat failed"); |
| |
| file = mmap(NULL, stat.st_size, PROT_READ, MAP_SHARED, fd, 0); |
| if (file == MAP_FAILED) |
| tst_brkm(TBROK | TERRNO, cleanup, "mmap failed"); |
| |
| /* (1) Test case for MADV_DONTDUMP */ |
| TEST(madvise(file, stat.st_size, MADV_DONTDUMP)); |
| check_and_print("MADV_DONTDUMP"); |
| |
| /* (2) Test case for MADV_DODUMP */ |
| TEST(madvise(file, stat.st_size, MADV_DODUMP)); |
| check_and_print("MADV_DODUMP"); |
| |
| /* Finally Unmapping the whole file */ |
| if (munmap(file, stat.st_size) < 0) |
| tst_brkm(TBROK | TERRNO, cleanup, "munmap failed"); |
| |
| close(fd); |
| } |
| |
| cleanup(); |
| tst_exit(); |
| } |
| |
| static void setup(void) |
| { |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| TEST_PAUSE; |
| tst_tmpdir(); |
| } |
| |
| static void cleanup(void) |
| { |
| TEST_CLEANUP; |
| tst_rmdir(); |
| } |
| |
| static void check_and_print(char *advice) |
| { |
| if (TEST_RETURN == -1) { |
| tst_resm(TFAIL, |
| "madvise test for %s failed with " |
| "return = %ld, errno = %d : %s", |
| advice, TEST_RETURN, TEST_ERRNO, strerror(TEST_ERRNO)); |
| } else if (STD_FUNCTIONAL_TEST) { |
| tst_resm(TPASS, "madvise test for %s PASSED", advice); |
| } |
| } |
| |
| #else |
| int main(void) |
| { |
| /* Requires kernel version >= 3.4 */ |
| tst_brkm(TCONF, NULL, |
| "This system doesn't have required madvise support, " |
| "MADV_DONTDUMP and MADV_DODUMP were added from 3.4. " |
| "If your kernel version >= 3.4, maybe you need updating " |
| "your glibc-headers"); |
| } |
| #endif |