| | 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 54 |
| | 19 | |
| | 20 | #if defined(ENTITLED) |
| | 21 | T_DECL(jumbo_va_spaces_28530648, |
| | 22 | #else |
| | 23 | T_DECL(jumbo_va_spaces_28530648_unentitled, |
| | 24 | #endif |
| | 25 | "Verify that the \"dynamic-codesigning\" entitlement is required to utilize an extra-large " |
| | 26 | "VA space on arm64", |
| | 27 | T_META_NAMESPACE("xnu.vm"), |
| | 28 | T_META_CHECK_LEAKS(false)) |
| | 29 | { |
| | 30 | int i; |
| | 31 | void *res; |
| | 32 | |
| | 33 | if (!dt_64_bit_kernel()) { |
| | 34 | T_SKIP("This test is only applicable to arm64"); |
| | 35 | } |
| | 36 | |
| | 37 | T_LOG("Attemping to allocate VA space in 1 GB chunks."); |
| | 38 | |
| | 39 | for (i = 0; i < (ALLOC_TEST_GB * 2); i++) { |
| | 40 | res = mmap(NULL, 1 * GB, PROT_NONE, MAP_PRIVATE | MAP_ANON, 0, 0); |
| | 41 | if (res == MAP_FAILED) { |
| | 42 | if (errno != ENOMEM) { |
| | 43 | T_WITH_ERRNO; |
| | 44 | T_LOG("mmap failed: stopped at %d of %d GB allocated", i, ALLOC_TEST_GB); |
| | 45 | } |
| | 46 | break; |
| | 47 | } else { |
| | 48 | T_LOG("%d: %p\n", i, res); |
| | 49 | } |
| | 50 | } |
| | 51 | |
| | 52 | #if defined(ENTITLED) |
| | 53 | T_EXPECT_GE_INT(i, ALLOC_TEST_GB, "Allocate at least %d GB of VA space", ALLOC_TEST_GB); |
| | 54 | #else |
| | 55 | T_EXPECT_LT_INT(i, ALLOC_TEST_GB, "Not permitted to allocate %d GB of VA space", ALLOC_TEST_GB); |
| | 56 | #endif |
| | 57 | } |
projects / apple / xnu.git / blame_incremental