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-rw-r--r--contrib/netbsd-tests/lib/libc/sys/t_mlock.c116
1 files changed, 32 insertions, 84 deletions
diff --git a/contrib/netbsd-tests/lib/libc/sys/t_mlock.c b/contrib/netbsd-tests/lib/libc/sys/t_mlock.c
index 85d82c7..dcfba2b 100644
--- a/contrib/netbsd-tests/lib/libc/sys/t_mlock.c
+++ b/contrib/netbsd-tests/lib/libc/sys/t_mlock.c
@@ -1,4 +1,4 @@
-/* $NetBSD: t_mlock.c,v 1.5 2014/02/26 20:49:26 martin Exp $ */
+/* $NetBSD: t_mlock.c,v 1.6 2016/08/09 12:02:44 kre Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
@@ -29,7 +29,7 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
-__RCSID("$NetBSD: t_mlock.c,v 1.5 2014/02/26 20:49:26 martin Exp $");
+__RCSID("$NetBSD: t_mlock.c,v 1.6 2016/08/09 12:02:44 kre Exp $");
#ifdef __FreeBSD__
#include <sys/types.h>
@@ -50,86 +50,13 @@ __RCSID("$NetBSD: t_mlock.c,v 1.5 2014/02/26 20:49:26 martin Exp $");
#include <limits.h>
#define _KMEMUSER
#include <machine/vmparam.h>
+
+void set_vm_max_wired(int);
+void restore_vm_max_wired(void);
#endif
static long page = 0;
-#ifdef __FreeBSD__
-#define VM_MAX_WIRED "vm.max_wired"
-
-static void
-vm_max_wired_sysctl(int *old_value, int *new_value)
-{
- size_t old_len;
- size_t new_len = (new_value == NULL ? 0 : sizeof(int));
-
- if (old_value == NULL)
- printf("Setting the new value to %d\n", *new_value);
- else {
- ATF_REQUIRE_MSG(sysctlbyname(VM_MAX_WIRED, NULL, &old_len,
- new_value, new_len) == 0,
- "sysctlbyname(%s) failed: %s", VM_MAX_WIRED, strerror(errno));
- }
-
- ATF_REQUIRE_MSG(sysctlbyname(VM_MAX_WIRED, old_value, &old_len,
- new_value, new_len) == 0,
- "sysctlbyname(%s) failed: %s", VM_MAX_WIRED, strerror(errno));
-
- if (old_value != NULL)
- printf("Saved the old value (%d)\n", *old_value);
-}
-
-static void
-set_vm_max_wired(int new_value)
-{
- FILE *fp;
- int old_value;
-
- fp = fopen(VM_MAX_WIRED, "w");
- if (fp == NULL) {
- atf_tc_skip("could not open %s for writing: %s",
- VM_MAX_WIRED, strerror(errno));
- return;
- }
-
- vm_max_wired_sysctl(&old_value, NULL);
-
- ATF_REQUIRE_MSG(fprintf(fp, "%d", old_value) > 0,
- "saving %s failed", VM_MAX_WIRED);
-
- fclose(fp);
-
- vm_max_wired_sysctl(NULL, &new_value);
-}
-
-static void
-restore_vm_max_wired(void)
-{
- FILE *fp;
- int saved_max_wired;
-
- fp = fopen(VM_MAX_WIRED, "r");
- if (fp == NULL) {
- perror("fopen failed\n");
- return;
- }
-
- if (fscanf(fp, "%d", &saved_max_wired) != 1) {
- perror("fscanf failed\n");
- fclose(fp);
- return;
- }
-
- fclose(fp);
- printf("old value in %s: %d\n", VM_MAX_WIRED, saved_max_wired);
-
- if (saved_max_wired == 0) /* This will cripple the test host */
- return;
-
- vm_max_wired_sysctl(NULL, &saved_max_wired);
-}
-#endif
-
ATF_TC(mlock_clip);
ATF_TC_HEAD(mlock_clip, tc)
{
@@ -178,6 +105,7 @@ ATF_TC_BODY(mlock_err, tc)
#endif
void *invalid_ptr;
int null_errno = ENOMEM; /* error expected for NULL */
+ void *buf;
#ifdef __FreeBSD__
#ifdef VM_MIN_ADDRESS
@@ -189,28 +117,48 @@ ATF_TC_BODY(mlock_err, tc)
#else
if (sysctlbyname("vm.minaddress", &vmin, &len, NULL, 0) != 0)
atf_tc_fail("failed to read vm.minaddress");
+ /*
+ * Any bad address must return ENOMEM (for lock & unlock)
+ */
+ errno = 0;
+ ATF_REQUIRE_ERRNO(ENOMEM, mlock(NULL, page) == -1);
if (vmin > 0)
null_errno = EINVAL; /* NULL is not inside user VM */
#endif
errno = 0;
- ATF_REQUIRE_ERRNO(null_errno, mlock(NULL, page) == -1);
+ ATF_REQUIRE_ERRNO(ENOMEM, mlock((char *)0, page) == -1);
errno = 0;
- ATF_REQUIRE_ERRNO(null_errno, mlock((char *)0, page) == -1);
+ ATF_REQUIRE_ERRNO(ENOMEM, mlock((char *)-1, page) == -1);
errno = 0;
- ATF_REQUIRE_ERRNO(EINVAL, mlock((char *)-1, page) == -1);
+ ATF_REQUIRE_ERRNO(ENOMEM, munlock(NULL, page) == -1);
errno = 0;
- ATF_REQUIRE_ERRNO(null_errno, munlock(NULL, page) == -1);
+ ATF_REQUIRE_ERRNO(ENOMEM, munlock((char *)0, page) == -1);
errno = 0;
- ATF_REQUIRE_ERRNO(null_errno, munlock((char *)0, page) == -1);
+ ATF_REQUIRE_ERRNO(ENOMEM, munlock((char *)-1, page) == -1);
+
+ buf = malloc(page);
+ ATF_REQUIRE(buf != NULL);
+
+ /*
+ * unlocking memory that is not locked is an error...
+ */
errno = 0;
- ATF_REQUIRE_ERRNO(EINVAL, munlock((char *)-1, page) == -1);
+ ATF_REQUIRE_ERRNO(ENOMEM, munlock(buf, page) == -1);
+
+ /*
+ * These are permitted to fail (EINVAL) but do not on NetBSD
+ */
+ ATF_REQUIRE(mlock((void *)(((uintptr_t)buf) + page/3), page/5) == 0);
+ ATF_REQUIRE(munlock((void *)(((uintptr_t)buf) + page/3), page/5) == 0);
+
+ (void)free(buf);
/*
* Try to create a pointer to an unmapped page - first after current
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