diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libc/sys/t_mlock.c')
| -rw-r--r-- | contrib/netbsd-tests/lib/libc/sys/t_mlock.c | 116 |
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 |
