1*aca3beaaSApple OSS Distributions #include <darwintest.h> 2*aca3beaaSApple OSS Distributions #include <darwintest_utils.h> 3*aca3beaaSApple OSS Distributions #include <mach-o/dyld.h> 4*aca3beaaSApple OSS Distributions #include <mach-o/dyld_priv.h> 5*aca3beaaSApple OSS Distributions #include <TargetConditionals.h> 6*aca3beaaSApple OSS Distributions 7*aca3beaaSApple OSS Distributions T_GLOBAL_META(T_META_NAMESPACE("xnu.shared_cache")); 8*aca3beaaSApple OSS Distributions 9*aca3beaaSApple OSS Distributions // Give the test up to two minutes because in the failure case we want to invoke update_dyld_shared_cache, which 10*aca3beaaSApple OSS Distributions // might take a bit to do. 11*aca3beaaSApple OSS Distributions T_DECL(present, "tests that the device is running with a shared cache", T_META_ASROOT(true), T_META_TIMEOUT(120)) 12*aca3beaaSApple OSS Distributions { 13*aca3beaaSApple OSS Distributions size_t shared_cache_len = 0; 14*aca3beaaSApple OSS Distributions const void *cache_header = _dyld_get_shared_cache_range(&shared_cache_len); 15*aca3beaaSApple OSS Distributions 16*aca3beaaSApple OSS Distributions #if TARGET_OS_OSX 17*aca3beaaSApple OSS Distributions T_SKIP("shared cache testing support incomplete (57267667)"); 18*aca3beaaSApple OSS Distributions #endif /* TARGET_OS_OSX */ 19*aca3beaaSApple OSS Distributions 20*aca3beaaSApple OSS Distributions if ((cache_header == NULL) || (shared_cache_len == 0)) { 21*aca3beaaSApple OSS Distributions #if TARGET_OS_OSX 22*aca3beaaSApple OSS Distributions char *tmp_dir = (char *) dt_tmpdir(); 23*aca3beaaSApple OSS Distributions T_QUIET; T_ASSERT_NOTNULL(tmp_dir, "darwintest created tmp dir"); 24*aca3beaaSApple OSS Distributions // Try to invoke update_dyld_shared_cache to gather information on why we're not running with a shared cache 25*aca3beaaSApple OSS Distributions char *shared_cache_update_cmd[] = { "/usr/bin/update_dyld_shared_cache", "-debug", "-cache_dir", tmp_dir, NULL }; 26*aca3beaaSApple OSS Distributions 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*aca3beaaSApple OSS Distributions T_LOG("%s", data); 28*aca3beaaSApple OSS Distributions return false; 29*aca3beaaSApple OSS Distributions }, ^bool (__unused char *data, __unused size_t data_size, __unused dt_pipe_data_handler_context_t *context) { 30*aca3beaaSApple OSS Distributions T_LOG("%s", data); 31*aca3beaaSApple OSS Distributions return false; 32*aca3beaaSApple OSS Distributions }, BUFFER_PATTERN_LINE, NULL); 33*aca3beaaSApple OSS Distributions 34*aca3beaaSApple OSS Distributions int status = 0; 35*aca3beaaSApple OSS Distributions dt_waitpid(child1, &status, NULL, 0); 36*aca3beaaSApple OSS Distributions 37*aca3beaaSApple OSS Distributions T_LOG("waitpid for %d returned with status %d", child1, WEXITSTATUS(status)); 38*aca3beaaSApple OSS Distributions #endif // TARGET_OS_OSX 39*aca3beaaSApple OSS Distributions T_ASSERT_NOTNULL(cache_header, "shared cache present"); 40*aca3beaaSApple OSS Distributions T_ASSERT_GT((int) shared_cache_len, 0, "shared cache has non-zero length"); 41*aca3beaaSApple OSS Distributions } 42*aca3beaaSApple OSS Distributions 43*aca3beaaSApple OSS Distributions T_PASS("shared cache appears to be present and valid"); 44*aca3beaaSApple OSS Distributions } 45