1 #include <sys/sysctl.h>
2 #include <signal.h>
3 #include <darwintest.h>
4 #include <darwintest_utils.h>
5
6 T_GLOBAL_META(
7 T_META_NAMESPACE("xnu.vm"),
8 T_META_RADAR_COMPONENT_NAME("xnu"),
9 T_META_RADAR_COMPONENT_VERSION("VM"),
10 T_META_ASROOT(YES),
11 T_META_RUN_CONCURRENTLY(true),
12 T_META_TAG_VM_PREFERRED);
13
14 static int64_t
run_sysctl_test(const char * t,int64_t value)15 run_sysctl_test(const char *t, int64_t value)
16 {
17 char name[1024];
18 int64_t result = 0;
19 size_t s = sizeof(value);
20 int rc;
21
22 snprintf(name, sizeof(name), "debug.test.%s", t);
23 rc = sysctlbyname(name, &result, &s, &value, s);
24 T_ASSERT_POSIX_SUCCESS(rc, "sysctlbyname(%s)", t);
25 return result;
26 }
27
28 T_DECL(vm_map_null,
29 "Test that we can call vm_map functions with VM_MAP_NULL",
30 T_META_TAG_VM_PREFERRED)
31 {
32 int64_t result = run_sysctl_test("vm_map_null", 0);
33 T_EXPECT_EQ(1ull, result, "vm_map_null");
34 }
35
36 T_DECL(vm_map_copy_entry_subrange,
37 "Test mapping a subrange of a copy entry")
38 {
39 T_EXPECT_EQ(1ull, run_sysctl_test("vm_map_copy_entry_subrange", 0), "vm_map_copy_entry_subrange");
40 }
41
42 T_DECL(vm_memory_entry_map_size_null,
43 "Test mach_memory_entry_map_size with NULL memory entry")
44 {
45 T_EXPECT_EQ(1ull, run_sysctl_test("vm_memory_entry_map_size_null", 0), "vm_memory_entry_map_size_null");
46 }
47
48
49 T_DECL(vm_memory_entry_map_size_overflow,
50 "Test overflow cases in mach_memory_entry_map_size sanitization")
51 {
52 T_EXPECT_EQ(1ull, run_sysctl_test("vm_memory_entry_map_size_overflow", 0), "vm_memory_entry_map_size_overflow");
53 }
54
55 T_DECL(vm_memory_entry_map_size_copy,
56 "Test mach_memory_entry_map_size with copy memory entries and 4k/16k combinations")
57 {
58 T_EXPECT_EQ(1ull, run_sysctl_test("vm_memory_entry_map_size_copy", 0), "vm_memory_entry_map_size_copy");
59 }
60
61 T_DECL(vm_memory_entry_parent_submap,
62 "Test mach_make_memory_entry cases where parent is a submap")
63 {
64 T_EXPECT_EQ(1ull, run_sysctl_test("vm_memory_entry_parent_submap", 0), "vm_memory_entry_parent_submap");
65 }
66
67 #ifndef __x86_64__
68 T_DECL(vm_page_radix_verify, "verify the vm pages radix tree")
69 {
70 T_EXPECT_EQ(1ull, run_sysctl_test("vm_page_radix_verify", 0), "vm_page_radix_verify");
71 }
72 #endif
73
74 T_DECL(vm_map_4k_16k_copyout,
75 "Make sure vm_map_copyout from 4k->16k maps doesn't lead to address space holes")
76 {
77 T_EXPECT_EQ(1ULL, run_sysctl_test("vm_map_4k_16k", 0), "vm_map_4k_16k_copyout");
78 }
79
80 T_DECL(vm_map_4k_16k_copy_overwrite,
81 "Make sure vm_map_copy_overwrite from 4k->16k maps doesn't lead to address space holes")
82 {
83 T_EXPECT_EQ(1ULL, run_sysctl_test("vm_map_4k_16k", 1), "vm_map_4k_16k_copy_overwrite");
84 }
85