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Diffstat (limited to 'winsup/testsuite/winsup.api/ltp/munmap01.c')
| -rw-r--r-- | winsup/testsuite/winsup.api/ltp/munmap01.c | 281 |
1 files changed, 0 insertions, 281 deletions
diff --git a/winsup/testsuite/winsup.api/ltp/munmap01.c b/winsup/testsuite/winsup.api/ltp/munmap01.c deleted file mode 100644 index 0527201be..000000000 --- a/winsup/testsuite/winsup.api/ltp/munmap01.c +++ /dev/null @@ -1,281 +0,0 @@ -/* - * - * Copyright (c) International Business Machines Corp., 2001 - * - * 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 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 - */ - -/* - * Test Name: munmap01 - * - * Test Description: - * Verify that, munmap call will succeed to unmap a mapped file or - * anonymous shared memory region from the calling process's address space - * and after successful completion of munmap, the unmapped region is no - * longer accessible. - * - * Expected Result: - * munmap call should succeed to unmap a mapped file or anonymous shared - * memory region from the process's address space and it returns with a - * value 0, further reference to the unmapped region should result in a - * segmentation fault (SIGSEGV). - * - * Algorithm: - * Setup: - * Setup signal handling. - * Create temporary directory. - * Pause for SIGUSR1 if option specified. - * - * Test: - * Loop if the proper options are given. - * Execute system call - * Check return code, if system call failed (return=-1) - * Log the errno and Issue a FAIL message. - * Otherwise, - * Verify the Functionality of system call - * if successful, - * Issue Functionality-Pass message. - * Otherwise, - * Issue Functionality-Fail message. - * Cleanup: - * Print errno log and/or timing stats if options given - * Delete the temporary directory created. - * - * Usage: <for command-line> - * munmap01 [-c n] [-f] [-i n] [-I x] [-P x] [-t] - * where, -c n : Run n copies concurrently. - * -f : Turn off functionality Testing. - * -i n : Execute test n times. - * -I x : Execute test for x seconds. - * -P x : Pause for x seconds between iterations. - * -t : Turn on syscall timing. - * - * HISTORY - * 07/2001 Ported by Wayne Boyer - * - * RESTRICTIONS: - * None. - */ -#include <errno.h> -#include <fcntl.h> -#include <sys/stat.h> -#include <sys/mman.h> - -#include "test.h" -#include "usctest.h" - -#define TEMPFILE "mmapfile" - -const char *TCID="munmap01"; /* Test program identifier. */ -int TST_TOTAL=1; /* Total number of test cases. */ -extern int Tst_count; /* Test Case counter for tst_* routines */ - -char *addr; /* addr of memory mapped region */ -int fildes; /* file descriptor for tempfile */ -unsigned int map_len; /* length of the region to be mapped */ - -void setup(); /* Main setup function of test */ -void cleanup(void); /* cleanup function for the test */ -void sig_handler(); /* signal catching function */ - -int -main(int ac, char **av) -{ - int lc; /* loop counter */ - const char *msg; /* message returned from parse_opts */ - - /* Parse standard options given to run the test. */ - msg = parse_opts(ac, av, (option_t *)NULL, NULL); - if (msg != (char *)NULL) { - tst_brkm(TBROK, tst_exit, "OPTION PARSING ERROR - %s", msg); - } - - /* Check looping state if -i option given */ - for (lc = 0; TEST_LOOPING(lc); lc++) { - /* Reset Tst_count in case we are looping. */ - Tst_count=0; - - /* Perform global setup for test */ - setup(); - - /* - * Call munmap to unmap the mapped region of the - * temporary file from the calling process's address space. - */ - TEST(munmap(addr, map_len)); - - /* Check for the return value of munmap() */ - if (TEST_RETURN == -1) { - tst_resm(TFAIL, "munmap() fails, errno=%d : %s", - TEST_ERRNO, strerror(TEST_ERRNO)); - continue; - } - - /* - * Perform functional verification if test - * executed without (-f) option. - */ - if (STD_FUNCTIONAL_TEST) { - /* - * Check whether further reference is possible - * to the unmapped memory region by writing - * to the first byte of region with - * some arbitrary number. - */ - *addr = 50; - - /* This message is printed if no SIGSEGV */ - tst_resm(TFAIL, "process succeeds to refer unmapped " - "memory region"); - } else { - tst_resm(TPASS, "call succeeded"); - } - - /* Call cleanup() to undo setup done for the test. */ - cleanup(); - - } /* End for TEST_LOOPING */ - - /* exit with return code appropriate for results */ - tst_exit(); - - /*NOTREACHED*/ -} /* End main */ - -/* - * setup() - performs all ONE TIME setup for this test. - * - * Set up signal handler to catch SIGSEGV. - * Get system page size, create a temporary file for reading/writing, - * write one byte data into it, map the open file for the specified - * map length. - */ -void -setup() -{ - size_t page_sz; /* system page size */ - - /* capture signals */ - tst_sig(NOFORK, DEF_HANDLER, cleanup); - - /* call signal function to trap the signal generated */ - if (signal(SIGSEGV, sig_handler) == SIG_ERR) { - tst_brkm(TBROK, cleanup, "signal fails to catch signal"); - tst_exit(); - } - - /* Pause if that option was specified */ - TEST_PAUSE; - - /* Get the system page size */ - if ((page_sz = getpagesize()) < 0) { - tst_brkm(TBROK, cleanup, - "getpagesize() fails to get system page size"); - tst_exit(); - } - - /* - * Get the length of the open file to be mapped into process - * address space. - */ - map_len = 3 * page_sz; - - /* make a temp directory and cd to it */ - tst_tmpdir(); - - /* Creat a temporary file used for mapping */ - if ((fildes = open(TEMPFILE, O_RDWR | O_CREAT, 0666)) < 0) { - tst_brkm(TBROK, cleanup, "open() on %s Failed, errno=%d : %s", - TEMPFILE, errno, strerror(errno)); - tst_exit(); - } - - /* - * move the file pointer to maplength position from the beginning - * of the file. - */ - if (lseek(fildes, map_len, SEEK_SET) == -1) { - tst_brkm(TBROK, cleanup, "lseek() fails on %s, errno=%d : %s", - TEMPFILE, errno, strerror(errno)); - tst_exit(); - } - - /* Write one byte into temporary file */ - if (write(fildes, "a", 1) != 1) { - tst_brkm(TBROK, cleanup, "write() on %s Failed, errno=%d : %s", - TEMPFILE, errno, strerror(errno)); - tst_exit(); - } - - /* - * map the open file 'TEMPFILE' from its beginning up to the maplength - * into the calling process's address space at the system choosen - * with read/write permissions to the the mapped region. - */ - addr = mmap(0, map_len, PROT_READ | PROT_WRITE, \ - MAP_FILE | MAP_SHARED, fildes, 0); - - /* check for the return value of mmap system call */ - if (addr == (char *)MAP_FAILED) { - tst_brkm(TBROK, cleanup, "mmap() Failed on %s, errno=%d : %s", - TEMPFILE, errno, strerror(errno)); - tst_exit(); - } -} - -/* - * sig_handler() - signal catching function. - * This function is used to trap the signal generated when tried to read or - * write to the memory mapped region which is already detached from the - * calling process address space. - * this function is invoked when SIGSEGV generated and it calls test - * cleanup function and exit the program. - */ -void -sig_handler() -{ - tst_resm(TPASS, "Functionality of munmap() successful"); - - /* Invoke test cleanup function and exit */ - cleanup(); - - /* exit with return code appropriate for results */ - tst_exit(); -} - -/* - * cleanup() - performs all ONE TIME cleanup for this test at - * completion or premature exit. - * Close the temporary file. - * Remove the temporary directory. - */ -void -cleanup() -{ - /* - * print timing stats if that option was specified. - * print errno log if that option was specified. - */ - TEST_CLEANUP; - - /* Close the temporary file */ - if (close(fildes) < 0) { - tst_brkm(TFAIL, NULL, "close() on %s Failed, errno=%d : %s", - TEMPFILE, errno, strerror(errno)); - } - - /* Remove the temporary directory and all files in it */ - tst_rmdir(); -} |