[src/trunk]: src/regress/sys/uvm/mmap Add a test for mprotect()'ing a region ...

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/1127bb6fc38f
branches:  trunk
changeset: 474740:1127bb6fc38f
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Sun Jul 18 00:43:22 1999 +0000

description:
Add a test for mprotect()'ing a region from PROT_NONE to anything else
which is in an address space configured MCL_FUTURE.

diffstat:

 regress/sys/uvm/mmap/mmap.c |  31 +++++++++++++++++++++++++++++--
 1 files changed, 29 insertions(+), 2 deletions(-)

diffs (59 lines):

diff -r 82a8f8a8182e -r 1127bb6fc38f regress/sys/uvm/mmap/mmap.c
--- a/regress/sys/uvm/mmap/mmap.c       Sun Jul 18 00:41:56 1999 +0000
+++ b/regress/sys/uvm/mmap/mmap.c       Sun Jul 18 00:43:22 1999 +0000
@@ -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 @@
        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 @@
                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 @@
 
        (void) munmap(addr, npgs * pgsize);
        (void) munmap(addr2, npgs * pgsize);
+       (void) munmap(addr3, npgs * pgsize);
 
        printf(">>> CREATING MAPPED FILE <<<\n");