projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 813fb2f6 A |
1 | #include <stdio.h> |
| 2 | #include <errno.h> | |
| 3 | #include <string.h> | |
| 4 | #include <unistd.h> | |
| 5 | #include <sys/mman.h> | |
| 6 | ||
| 7 | #include <darwintest.h> | |
| 8 | #include <darwintest_utils.h> | |
| 9 | ||
| 10 | ||
| 11 | #define GB (1ULL * 1024 * 1024 * 1024) | |
| 12 | ||
| 13 | /* | |
| 14 | * This test expects the entitlement to be the enabling factor for a process to | |
| 15 | * allocate at least this many GB of VA space. i.e. with the entitlement, n GB | |
| 16 | * must be allocatable; whereas without it, it must be less. | |
| 17 | */ | |
| 18 | #define ALLOC_TEST_GB 12 | |
| 19 | ||
| 20 | T_DECL(jumbo_va_spaces_28530648, | |
| 21 | "Verify that the \"dynamic-codesigning\" entitlement is required to utilize an extra-large " | |
| 22 | "VA space on arm64", | |
| 23 | T_META_NAMESPACE("xnu.vm"), | |
| 24 | T_META_CHECK_LEAKS(false)) | |
| 25 | { | |
| 26 | int i; | |
| 27 | void *res; | |
| 28 | ||
| 29 | if (!dt_64_bit_kernel()) { | |
| 30 | T_SKIP("This test is only applicable to arm64"); | |
| 31 | } | |
| 32 | ||
| 33 | T_LOG("Attemping to allocate VA space in 1 GB chunks."); | |
| 34 | ||
| 35 | for (i = 0; i < (ALLOC_TEST_GB * 2); i++) { | |
| 36 | res = mmap(NULL, 1 * GB, PROT_NONE, MAP_PRIVATE | MAP_ANON, 0, 0); | |
| 37 | if (res == MAP_FAILED) { | |
| 38 | if (errno != ENOMEM) { | |
| 39 | T_WITH_ERRNO; | |
| 40 | T_LOG("mmap failed: stopped at %d of %d GB allocated", i, ALLOC_TEST_GB); | |
| 41 | } | |
| 42 | break; | |
| 43 | } else { | |
| 44 | T_LOG("%d: %p\n", i, res); | |
| 45 | } | |
| 46 | } | |
| 47 | ||
| 48 | #if defined(ENTITLED) | |
| 49 | T_EXPECT_GE_INT(i, ALLOC_TEST_GB, "Allocate at least %d GB of VA space", ALLOC_TEST_GB); | |
| 50 | #else | |
| 51 | T_EXPECT_LT_INT(i, ALLOC_TEST_GB, "Not permitted to allocate %d GB of VA space", ALLOC_TEST_GB); | |
| 52 | #endif | |
| 53 | } |