/* IBM Corporation */
|
/* 01/02/2003 Port to LTP avenkat@us.ibm.com*/
|
/* 06/30/2001 Port to Linux nsharoff@us.ibm.com */
|
/*
|
* Copyright (c) International Business Machines Corp., 2003
|
*
|
*
|
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
*/
|
|
/* mfile_insque:
|
* This test mmaps a portion of a file, and then mmaps the next
|
* portion of the file in front of the virtual space containing the
|
* original mmap. It then mmaps the preceding portion of the file behind
|
* the original mmap. None of the mmaps can be concatenated.
|
*/
|
#include <sys/types.h>
|
#include <sys/mman.h>
|
#include <unistd.h>
|
#include <fcntl.h>
|
#include <signal.h>
|
#include <stdio.h>
|
#include <errno.h>
|
/* #include <sys/pte.h> */
|
|
/***** LTP Port *****/
|
#include "test.h"
|
/***** ** ** *****/
|
|
#ifndef MMU_NARROWPTEPG
|
#define MMU_NARROWPTEPG 1024
|
#endif
|
|
/***** LTP Port *****/
|
#define FAILED 0
|
#define PASSED 1
|
|
int local_flag = PASSED;
|
char *TCID = "mmapstress05"; //mfile_insque
|
FILE *temp;
|
int TST_TOTAL = 1;
|
|
int anyfail();
|
void ok_exit();
|
/***** ** ** *****/
|
|
#define ERROR(M) (void)fprintf(stderr, "%s: errno = %d; " M "\n", \
|
progname, errno);
|
#define CLEAN (void)close(fd); \
|
if (munmap(mmapaddr+pagesize, pagesize) == -1) { \
|
ERROR("munmap failed"); \
|
} \
|
if (munmap(mmapaddr, pagesize) == -1) { \
|
ERROR("munmap failed"); \
|
} \
|
if (munmap(mmapaddr+2*pagesize, pagesize) == -1) { \
|
ERROR("munmap failed"); \
|
} \
|
if (unlink(tmpname)) { \
|
ERROR("couldn't clean up temp file"); \
|
}
|
|
#define CERROR(M) CLEAN; ERROR(M)
|
|
#define CATCH_SIG(SIG) \
|
if (sigaction(SIG, &sa, 0) == -1) { \
|
ERROR("couldn't catch signal " #SIG); \
|
exit(1); \
|
}
|
|
extern time_t time(time_t *);
|
extern char *ctime(const time_t *);
|
extern void exit(int);
|
|
static int fd;
|
//static char *tmpname; 12/31/02
|
static char tmpname[] = "fileXXXXXX";
|
static char *progname;
|
|
/*ARGSUSED*/ static
|
void cleanup(int sig)
|
{
|
/*
|
* Don't check error codes - we could be signaled before the file is
|
* created.
|
*/
|
(void)close(fd);
|
(void)unlink(tmpname);
|
exit(1);
|
}
|
|
int main(int argc, char *argv[])
|
{
|
size_t pagesize = (size_t) sysconf(_SC_PAGE_SIZE);
|
caddr_t mmapaddr;
|
char *buf;
|
time_t t;
|
int i;
|
struct sigaction sa;
|
|
if (!argc) {
|
(void)fprintf(stderr, "argc == 0\n");
|
return 1;
|
}
|
tst_tmpdir();
|
progname = argv[0];
|
(void)time(&t);
|
// (void)printf("%s: Started %s", argv[0], ctime(&t)); LTP Port
|
if (sbrk(pagesize - ((ulong) sbrk(0) & (pagesize - 1))) == (char *)-1) {
|
ERROR("couldn't round up brk");
|
anyfail();
|
}
|
if ((buf = sbrk(pagesize)) == (char *)-1) {
|
ERROR("couldn't allocate output buffer");
|
anyfail();
|
}
|
if ((mmapaddr = (caddr_t) sbrk(0)) == (caddr_t) - 1) {
|
ERROR("couldn't find top of brk");
|
anyfail();
|
}
|
|
/* i changed the second argument to NULL
|
from argv[0]. otherwise it causes the
|
open to fail
|
-- sreeni
|
*/
|
|
if ((fd = mkstemp(tmpname)) == -1) {
|
ERROR("mkstemp failed");
|
anyfail();
|
}
|
sa.sa_handler = cleanup;
|
sa.sa_flags = 0;
|
if (sigemptyset(&sa.sa_mask)) {
|
ERROR("sigemptyset failed");
|
anyfail();
|
}
|
CATCH_SIG(SIGINT);
|
CATCH_SIG(SIGQUIT);
|
CATCH_SIG(SIGTERM);
|
for (i = 0; i < pagesize; i++)
|
buf[i] = 'a';
|
if (write(fd, buf, pagesize) != pagesize) {
|
CERROR("couldn't write page case 1");
|
anyfail();
|
}
|
if (lseek(fd, MMU_NARROWPTEPG * pagesize, SEEK_SET) == -1) {
|
CERROR("lseek case 1 failed");
|
anyfail();
|
}
|
if (write(fd, buf, pagesize) != pagesize) {
|
CERROR("couldn't write page case 2");
|
anyfail();
|
}
|
if (lseek(fd, 2 * MMU_NARROWPTEPG * pagesize, SEEK_SET) == -1) {
|
CERROR("lseek case 2 failed");
|
anyfail();
|
}
|
if (write(fd, buf, pagesize) != pagesize) {
|
CERROR("couldn't write page case 3");
|
anyfail();
|
}
|
/* fd now references a sparce file which has three pages widely spaced.
|
* Hopefully different mfile objects will be needed to reference each
|
* page.
|
*/
|
if (mmap(mmapaddr + pagesize, pagesize, PROT_READ,
|
MAP_FILE | MAP_PRIVATE | MAP_FIXED, fd,
|
MMU_NARROWPTEPG * pagesize)
|
== (caddr_t) - 1) {
|
CERROR("first mmap (of third page) failed");
|
anyfail();
|
}
|
if (mmap(mmapaddr, pagesize, PROT_READ,
|
MAP_FILE | MAP_PRIVATE | MAP_FIXED, fd,
|
2 * MMU_NARROWPTEPG * pagesize)
|
== (caddr_t) - 1) {
|
CERROR("second mmap (of fifth page) failed");
|
anyfail();
|
}
|
if (mmap(mmapaddr + 2 * pagesize, pagesize, PROT_READ,
|
MAP_FILE | MAP_PRIVATE | MAP_FIXED, fd, 0) == (caddr_t) - 1) {
|
CERROR("third mmap (of first page) failed");
|
anyfail();
|
}
|
CLEAN; /*comment */
|
(void)time(&t);
|
// (void)printf("%s: Finished %s", argv[0], ctime(&t)); LTP Port
|
ok_exit();
|
tst_exit();
|
}
|
|
void ok_exit(void)
|
{
|
tst_resm(TPASS, "Test passed\n");
|
tst_rmdir();
|
tst_exit();
|
}
|
|
int anyfail(void)
|
{
|
tst_brkm(TFAIL, tst_rmdir, "Test failed\n");
|
}
|
