Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add a test for mprotect()'ing a region from PROT_NONE to anything else

Browse Source 
which is in an address space configured MCL_FUTURE.
This commit is contained in:
thorpej 1999-07-18 00:43:22 +00:00
parent 5ee6f3960d
commit f6d7947c4b
1 changed files with 29 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
regress/sys/uvm/mmap/mmap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: mmap.c,v 1.4 1999/07/17 06:01:52 thorpej Exp $ */
/* $NetBSD: mmap.c,v 1.5 1999/07/18 00:43:22 thorpej Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@ -71,7 +71,7 @@ main(argc, argv)
char *argv[];
{
struct stat st;
void *addr, *addr2;
void *addr, *addr2, *addr3;
int i, ch, ecode, fd, npgs, shmid;
const char *filename;
u_int8_t *cp;
@ -185,6 +185,32 @@ main(argc, argv)
ecode = 1;
}
printf(">>> MAPPING THIRD %d PAGE ANONYMOUS REGION, PROT_NONE <<<\n",
npgs);
addr3 = mmap(NULL, npgs * pgsize, PROT_NONE, MAP_ANON, -1, (off_t) 0);
if (addr3 == MAP_FAILED)
err(1, "mmap anon #3");
printf(" CHECKING RESIDENCY\n");
if (check_residency(addr3, npgs) != 0) {
printf(" RESIDENCY CHECK FAILED!\n");
ecode = 1;
}
printf(" PROT_READ'ING MAPPING\n");
if (mprotect(addr3, npgs * pgsize, PROT_READ) == -1)
err(1, "mprotect");
printf(" CHECKING RESIDENCY\n");
if (check_residency(addr3, npgs) != npgs) {
printf(" RESIDENCY CHECK FAILED!\n");
ecode = 1;
}
printf(" UNLOCKING ALL\n");
(void) munlockall();
@ -233,6 +259,7 @@ main(argc, argv)
(void) munmap(addr, npgs * pgsize);
(void) munmap(addr2, npgs * pgsize);
(void) munmap(addr3, npgs * pgsize);
printf(">>> CREATING MAPPED FILE <<<\n");