1 #include <darwintest.h> 2 #include <darwintest_utils.h> 3 #include <mach-o/dyld.h> 4 #include <mach-o/dyld_priv.h> 5 #include <TargetConditionals.h> 6 7 T_GLOBAL_META(T_META_NAMESPACE("xnu.shared_cache")); 8 9 // Give the test up to two minutes because in the failure case we want to invoke update_dyld_shared_cache, which 10 // might take a bit to do. 11 T_DECL(present, "tests that the device is running with a shared cache", T_META_ASROOT(true), T_META_TIMEOUT(120)) 12 { 13 size_t shared_cache_len = 0; 14 const void *cache_header = _dyld_get_shared_cache_range(&shared_cache_len); 15 16 #if TARGET_OS_OSX 17 T_SKIP("shared cache testing support incomplete (57267667)"); 18 #endif /* TARGET_OS_OSX */ 19 20 if ((cache_header == NULL) || (shared_cache_len == 0)) { 21 #if TARGET_OS_OSX 22 char *tmp_dir = (char *) dt_tmpdir(); 23 T_QUIET; T_ASSERT_NOTNULL(tmp_dir, "darwintest created tmp dir"); 24 // Try to invoke update_dyld_shared_cache to gather information on why we're not running with a shared cache 25 char *shared_cache_update_cmd[] = { "/usr/bin/update_dyld_shared_cache", "-debug", "-cache_dir", tmp_dir, NULL }; 26 pid_t child1 = dt_launch_tool_pipe(shared_cache_update_cmd, false, NULL, ^bool (char *data, __unused size_t data_size, __unused dt_pipe_data_handler_context_t *context) { 27 T_LOG("%s", data); 28 return false; 29 }, ^bool (__unused char *data, __unused size_t data_size, __unused dt_pipe_data_handler_context_t *context) { 30 T_LOG("%s", data); 31 return false; 32 }, BUFFER_PATTERN_LINE, NULL); 33 34 int status = 0; 35 dt_waitpid(child1, &status, NULL, 0); 36 37 T_LOG("waitpid for %d returned with status %d", child1, WEXITSTATUS(status)); 38 #endif // TARGET_OS_OSX 39 T_ASSERT_NOTNULL(cache_header, "shared cache present"); 40 T_ASSERT_GT((int) shared_cache_len, 0, "shared cache has non-zero length"); 41 } 42 43 T_PASS("shared cache appears to be present and valid"); 44 } 45