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117 lines
3.2 KiB
117 lines
3.2 KiB
/* IBM Corporation */
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/* 01/02/2003 Port to LTP avenkat@us.ibm.com */
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/* 06/30/2001 Port to Linux nsharoff@us.ibm.com */
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/*
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* Copyright (c) International Business Machines Corp., 2003
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* mfile_swap:
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* Mmap a large (> ANON_GRAN_PAGES_MAX) shared, anonymous region before
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* swapping to use the second half of the kernel primitive mfile_swap.
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* However, this test does _NOT_ cause swapping to occur. Instead it should be
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* run with waves or at the same time as a test which does cause swapping (i.e.
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* vsswapin or vfork_swap)
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*/
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#define _KMEMUSER
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#include <sys/types.h>
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#include <sys/mman.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <errno.h>
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/***** LTP Port *****/
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#include "test.h"
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#define FAILED 0
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#define PASSED 1
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int local_flag = PASSED;
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char *TCID = "mmapstress06"; //mfile_swap
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FILE *temp;
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int TST_TOTAL = 1;
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int anyfail();
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void ok_exit();
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/***** ** ** *****/
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#define ANON_GRAN_PAGES_MAX (32U)
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extern time_t time(time_t *);
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extern char *ctime(const time_t *);
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extern int atoi(const char *);
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#define NMFPTEPG (1024)
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#define ERROR(M) (void)fprintf(stderr, "%s: errno = %d; " M "\n", \
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argv[0], errno);
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int main(int argc, char *argv[])
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{
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caddr_t mmapaddr;
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size_t pagesize = sysconf(_SC_PAGE_SIZE);
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time_t t;
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int sleep_time = 0;
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if (!argc) {
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(void)fprintf(stderr, "argc == 0\n");
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anyfail();
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}
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if (argc != 2 || !(sleep_time = atoi(argv[1]))) {
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(void)fprintf(stderr, "usage: %s sleep_time\n", argv[0]);
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anyfail();
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}
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(void)time(&t);
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// (void)printf("%s: Started %s", argv[0], ctime(&t)); LTP Port
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if (sbrk(pagesize - ((ulong) sbrk(0) & (pagesize - 1))) == (char *)-1) {
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ERROR("couldn't round up brk");
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anyfail();
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}
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if ((mmapaddr = sbrk(0)) == (char *)-1) {
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ERROR("couldn't find top of brk");
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anyfail();
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}
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/* mmapaddr is now on a page boundary after the brk segment */
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if (mmap
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(mmapaddr, (ANON_GRAN_PAGES_MAX * NMFPTEPG + 1) * pagesize,
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PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_SHARED, 0,
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0) == (caddr_t) - 1) {
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ERROR("large mmap failed");
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printf("for this test to run, it needs a mmap space of\n");
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printf("%d pages\n", (ANON_GRAN_PAGES_MAX * NMFPTEPG + 1));
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return 1;
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}
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(void)sleep(sleep_time);
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(void)time(&t);
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// (void)printf("%s: Finished %s", argv[0], ctime(&t)); LTP Port
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ok_exit();
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tst_exit();
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}
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/***** LTP Port *****/
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void ok_exit(void)
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{
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tst_resm(TPASS, "Test passed\n");
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tst_exit();
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}
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int anyfail(void)
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{
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tst_brkm(TFAIL, NULL, "Test failed\n");
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}
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/***** ** ** *****/
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