1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "jvmti_helper.h" 18 #include "test_env.h" 19 20 #include <dlfcn.h> 21 22 #include <algorithm> 23 #include <cstdio> 24 #include <cstring> 25 #include <sstream> 26 27 #include "android-base/logging.h" 28 #include "scoped_local_ref.h" 29 30 namespace art { 31 32 void CheckJvmtiError(jvmtiEnv* env, jvmtiError error) { 33 if (error != JVMTI_ERROR_NONE) { 34 char* error_name; 35 jvmtiError name_error = env->GetErrorName(error, &error_name); 36 if (name_error != JVMTI_ERROR_NONE) { 37 LOG(FATAL) << "Unable to get error name for " << error; 38 } 39 LOG(FATAL) << "Unexpected error: " << error_name; 40 } 41 } 42 43 // These are a set of capabilities we will enable in all situations. These are chosen since they 44 // will not affect the runtime in any significant way if they are enabled. 45 static const jvmtiCapabilities standard_caps = { 46 .can_tag_objects = 1, 47 .can_generate_field_modification_events = 1, 48 .can_generate_field_access_events = 1, 49 .can_get_bytecodes = 1, 50 .can_get_synthetic_attribute = 1, 51 .can_get_owned_monitor_info = 0, 52 .can_get_current_contended_monitor = 1, 53 .can_get_monitor_info = 1, 54 .can_pop_frame = 0, 55 .can_redefine_classes = 1, 56 .can_signal_thread = 1, 57 .can_get_source_file_name = 1, 58 .can_get_line_numbers = 1, 59 .can_get_source_debug_extension = 1, 60 .can_access_local_variables = 0, 61 .can_maintain_original_method_order = 1, 62 .can_generate_single_step_events = 1, 63 .can_generate_exception_events = 0, 64 .can_generate_frame_pop_events = 0, 65 .can_generate_breakpoint_events = 1, 66 .can_suspend = 1, 67 .can_redefine_any_class = 0, 68 .can_get_current_thread_cpu_time = 0, 69 .can_get_thread_cpu_time = 0, 70 .can_generate_method_entry_events = 1, 71 .can_generate_method_exit_events = 1, 72 .can_generate_all_class_hook_events = 0, 73 .can_generate_compiled_method_load_events = 0, 74 .can_generate_monitor_events = 0, 75 .can_generate_vm_object_alloc_events = 1, 76 .can_generate_native_method_bind_events = 1, 77 .can_generate_garbage_collection_events = 1, 78 .can_generate_object_free_events = 1, 79 .can_force_early_return = 0, 80 .can_get_owned_monitor_stack_depth_info = 0, 81 .can_get_constant_pool = 0, 82 .can_set_native_method_prefix = 0, 83 .can_retransform_classes = 1, 84 .can_retransform_any_class = 0, 85 .can_generate_resource_exhaustion_heap_events = 0, 86 .can_generate_resource_exhaustion_threads_events = 0, 87 }; 88 89 jvmtiCapabilities GetStandardCapabilities() { 90 return standard_caps; 91 } 92 93 void SetStandardCapabilities(jvmtiEnv* env) { 94 if (IsJVM()) { 95 // RI is more strict about adding capabilities at runtime then ART so just give it everything. 96 SetAllCapabilities(env); 97 return; 98 } 99 jvmtiCapabilities caps = GetStandardCapabilities(); 100 CheckJvmtiError(env, env->AddCapabilities(&caps)); 101 } 102 103 void SetAllCapabilities(jvmtiEnv* env) { 104 jvmtiCapabilities caps; 105 CheckJvmtiError(env, env->GetPotentialCapabilities(&caps)); 106 CheckJvmtiError(env, env->AddCapabilities(&caps)); 107 } 108 109 bool JvmtiErrorToException(JNIEnv* env, jvmtiEnv* jvmtienv, jvmtiError error) { 110 if (error == JVMTI_ERROR_NONE) { 111 return false; 112 } 113 114 ScopedLocalRef<jclass> rt_exception(env, env->FindClass("java/lang/RuntimeException")); 115 if (rt_exception.get() == nullptr) { 116 // CNFE should be pending. 117 return true; 118 } 119 120 char* err; 121 CheckJvmtiError(jvmtienv, jvmtienv->GetErrorName(error, &err)); 122 123 env->ThrowNew(rt_exception.get(), err); 124 125 Deallocate(jvmtienv, err); 126 return true; 127 } 128 129 std::ostream& operator<<(std::ostream& os, const jvmtiError& rhs) { 130 switch (rhs) { 131 case JVMTI_ERROR_NONE: 132 return os << "NONE"; 133 case JVMTI_ERROR_INVALID_THREAD: 134 return os << "INVALID_THREAD"; 135 case JVMTI_ERROR_INVALID_THREAD_GROUP: 136 return os << "INVALID_THREAD_GROUP"; 137 case JVMTI_ERROR_INVALID_PRIORITY: 138 return os << "INVALID_PRIORITY"; 139 case JVMTI_ERROR_THREAD_NOT_SUSPENDED: 140 return os << "THREAD_NOT_SUSPENDED"; 141 case JVMTI_ERROR_THREAD_SUSPENDED: 142 return os << "THREAD_SUSPENDED"; 143 case JVMTI_ERROR_THREAD_NOT_ALIVE: 144 return os << "THREAD_NOT_ALIVE"; 145 case JVMTI_ERROR_INVALID_OBJECT: 146 return os << "INVALID_OBJECT"; 147 case JVMTI_ERROR_INVALID_CLASS: 148 return os << "INVALID_CLASS"; 149 case JVMTI_ERROR_CLASS_NOT_PREPARED: 150 return os << "CLASS_NOT_PREPARED"; 151 case JVMTI_ERROR_INVALID_METHODID: 152 return os << "INVALID_METHODID"; 153 case JVMTI_ERROR_INVALID_LOCATION: 154 return os << "INVALID_LOCATION"; 155 case JVMTI_ERROR_INVALID_FIELDID: 156 return os << "INVALID_FIELDID"; 157 case JVMTI_ERROR_NO_MORE_FRAMES: 158 return os << "NO_MORE_FRAMES"; 159 case JVMTI_ERROR_OPAQUE_FRAME: 160 return os << "OPAQUE_FRAME"; 161 case JVMTI_ERROR_TYPE_MISMATCH: 162 return os << "TYPE_MISMATCH"; 163 case JVMTI_ERROR_INVALID_SLOT: 164 return os << "INVALID_SLOT"; 165 case JVMTI_ERROR_DUPLICATE: 166 return os << "DUPLICATE"; 167 case JVMTI_ERROR_NOT_FOUND: 168 return os << "NOT_FOUND"; 169 case JVMTI_ERROR_INVALID_MONITOR: 170 return os << "INVALID_MONITOR"; 171 case JVMTI_ERROR_NOT_MONITOR_OWNER: 172 return os << "NOT_MONITOR_OWNER"; 173 case JVMTI_ERROR_INTERRUPT: 174 return os << "INTERRUPT"; 175 case JVMTI_ERROR_INVALID_CLASS_FORMAT: 176 return os << "INVALID_CLASS_FORMAT"; 177 case JVMTI_ERROR_CIRCULAR_CLASS_DEFINITION: 178 return os << "CIRCULAR_CLASS_DEFINITION"; 179 case JVMTI_ERROR_FAILS_VERIFICATION: 180 return os << "FAILS_VERIFICATION"; 181 case JVMTI_ERROR_UNSUPPORTED_REDEFINITION_METHOD_ADDED: 182 return os << "UNSUPPORTED_REDEFINITION_METHOD_ADDED"; 183 case JVMTI_ERROR_UNSUPPORTED_REDEFINITION_SCHEMA_CHANGED: 184 return os << "UNSUPPORTED_REDEFINITION_SCHEMA_CHANGED"; 185 case JVMTI_ERROR_INVALID_TYPESTATE: 186 return os << "INVALID_TYPESTATE"; 187 case JVMTI_ERROR_UNSUPPORTED_REDEFINITION_HIERARCHY_CHANGED: 188 return os << "UNSUPPORTED_REDEFINITION_HIERARCHY_CHANGED"; 189 case JVMTI_ERROR_UNSUPPORTED_REDEFINITION_METHOD_DELETED: 190 return os << "UNSUPPORTED_REDEFINITION_METHOD_DELETED"; 191 case JVMTI_ERROR_UNSUPPORTED_VERSION: 192 return os << "UNSUPPORTED_VERSION"; 193 case JVMTI_ERROR_NAMES_DONT_MATCH: 194 return os << "NAMES_DONT_MATCH"; 195 case JVMTI_ERROR_UNSUPPORTED_REDEFINITION_CLASS_MODIFIERS_CHANGED: 196 return os << "UNSUPPORTED_REDEFINITION_CLASS_MODIFIERS_CHANGED"; 197 case JVMTI_ERROR_UNSUPPORTED_REDEFINITION_METHOD_MODIFIERS_CHANGED: 198 return os << "UNSUPPORTED_REDEFINITION_METHOD_MODIFIERS_CHANGED"; 199 case JVMTI_ERROR_UNMODIFIABLE_CLASS: 200 return os << "JVMTI_ERROR_UNMODIFIABLE_CLASS"; 201 case JVMTI_ERROR_NOT_AVAILABLE: 202 return os << "NOT_AVAILABLE"; 203 case JVMTI_ERROR_MUST_POSSESS_CAPABILITY: 204 return os << "MUST_POSSESS_CAPABILITY"; 205 case JVMTI_ERROR_NULL_POINTER: 206 return os << "NULL_POINTER"; 207 case JVMTI_ERROR_ABSENT_INFORMATION: 208 return os << "ABSENT_INFORMATION"; 209 case JVMTI_ERROR_INVALID_EVENT_TYPE: 210 return os << "INVALID_EVENT_TYPE"; 211 case JVMTI_ERROR_ILLEGAL_ARGUMENT: 212 return os << "ILLEGAL_ARGUMENT"; 213 case JVMTI_ERROR_NATIVE_METHOD: 214 return os << "NATIVE_METHOD"; 215 case JVMTI_ERROR_CLASS_LOADER_UNSUPPORTED: 216 return os << "CLASS_LOADER_UNSUPPORTED"; 217 case JVMTI_ERROR_OUT_OF_MEMORY: 218 return os << "OUT_OF_MEMORY"; 219 case JVMTI_ERROR_ACCESS_DENIED: 220 return os << "ACCESS_DENIED"; 221 case JVMTI_ERROR_WRONG_PHASE: 222 return os << "WRONG_PHASE"; 223 case JVMTI_ERROR_INTERNAL: 224 return os << "INTERNAL"; 225 case JVMTI_ERROR_UNATTACHED_THREAD: 226 return os << "UNATTACHED_THREAD"; 227 case JVMTI_ERROR_INVALID_ENVIRONMENT: 228 return os << "INVALID_ENVIRONMENT"; 229 } 230 LOG(FATAL) << "Unexpected error type " << static_cast<int>(rhs); 231 __builtin_unreachable(); 232 } 233 234 } // namespace art 235
