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 19 #include <algorithm> 20 #include <dlfcn.h> 21 #include <stdio.h> 22 #include <sstream> 23 #include <string.h> 24 25 #include "android-base/logging.h" 26 #include "scoped_local_ref.h" 27 28 namespace art { 29 30 void CheckJvmtiError(jvmtiEnv* env, jvmtiError error) { 31 if (error != JVMTI_ERROR_NONE) { 32 char* error_name; 33 jvmtiError name_error = env->GetErrorName(error, &error_name); 34 if (name_error != JVMTI_ERROR_NONE) { 35 LOG(FATAL) << "Unable to get error name for " << error; 36 } 37 LOG(FATAL) << "Unexpected error: " << error_name; 38 } 39 } 40 41 void SetAllCapabilities(jvmtiEnv* env) { 42 jvmtiCapabilities caps; 43 jvmtiError error1 = env->GetPotentialCapabilities(&caps); 44 CheckJvmtiError(env, error1); 45 jvmtiError error2 = env->AddCapabilities(&caps); 46 CheckJvmtiError(env, error2); 47 } 48 49 bool JvmtiErrorToException(JNIEnv* env, jvmtiEnv* jvmti_env, jvmtiError error) { 50 if (error == JVMTI_ERROR_NONE) { 51 return false; 52 } 53 54 ScopedLocalRef<jclass> rt_exception(env, env->FindClass("java/lang/RuntimeException")); 55 if (rt_exception.get() == nullptr) { 56 // CNFE should be pending. 57 return true; 58 } 59 60 char* err; 61 CheckJvmtiError(jvmti_env, jvmti_env->GetErrorName(error, &err)); 62 63 env->ThrowNew(rt_exception.get(), err); 64 65 Deallocate(jvmti_env, err); 66 return true; 67 } 68 69 std::ostream& operator<<(std::ostream& os, const jvmtiError& rhs) { 70 switch (rhs) { 71 case JVMTI_ERROR_NONE: 72 return os << "NONE"; 73 case JVMTI_ERROR_INVALID_THREAD: 74 return os << "INVALID_THREAD"; 75 case JVMTI_ERROR_INVALID_THREAD_GROUP: 76 return os << "INVALID_THREAD_GROUP"; 77 case JVMTI_ERROR_INVALID_PRIORITY: 78 return os << "INVALID_PRIORITY"; 79 case JVMTI_ERROR_THREAD_NOT_SUSPENDED: 80 return os << "THREAD_NOT_SUSPENDED"; 81 case JVMTI_ERROR_THREAD_SUSPENDED: 82 return os << "THREAD_SUSPENDED"; 83 case JVMTI_ERROR_THREAD_NOT_ALIVE: 84 return os << "THREAD_NOT_ALIVE"; 85 case JVMTI_ERROR_INVALID_OBJECT: 86 return os << "INVALID_OBJECT"; 87 case JVMTI_ERROR_INVALID_CLASS: 88 return os << "INVALID_CLASS"; 89 case JVMTI_ERROR_CLASS_NOT_PREPARED: 90 return os << "CLASS_NOT_PREPARED"; 91 case JVMTI_ERROR_INVALID_METHODID: 92 return os << "INVALID_METHODID"; 93 case JVMTI_ERROR_INVALID_LOCATION: 94 return os << "INVALID_LOCATION"; 95 case JVMTI_ERROR_INVALID_FIELDID: 96 return os << "INVALID_FIELDID"; 97 case JVMTI_ERROR_NO_MORE_FRAMES: 98 return os << "NO_MORE_FRAMES"; 99 case JVMTI_ERROR_OPAQUE_FRAME: 100 return os << "OPAQUE_FRAME"; 101 case JVMTI_ERROR_TYPE_MISMATCH: 102 return os << "TYPE_MISMATCH"; 103 case JVMTI_ERROR_INVALID_SLOT: 104 return os << "INVALID_SLOT"; 105 case JVMTI_ERROR_DUPLICATE: 106 return os << "DUPLICATE"; 107 case JVMTI_ERROR_NOT_FOUND: 108 return os << "NOT_FOUND"; 109 case JVMTI_ERROR_INVALID_MONITOR: 110 return os << "INVALID_MONITOR"; 111 case JVMTI_ERROR_NOT_MONITOR_OWNER: 112 return os << "NOT_MONITOR_OWNER"; 113 case JVMTI_ERROR_INTERRUPT: 114 return os << "INTERRUPT"; 115 case JVMTI_ERROR_INVALID_CLASS_FORMAT: 116 return os << "INVALID_CLASS_FORMAT"; 117 case JVMTI_ERROR_CIRCULAR_CLASS_DEFINITION: 118 return os << "CIRCULAR_CLASS_DEFINITION"; 119 case JVMTI_ERROR_FAILS_VERIFICATION: 120 return os << "FAILS_VERIFICATION"; 121 case JVMTI_ERROR_UNSUPPORTED_REDEFINITION_METHOD_ADDED: 122 return os << "UNSUPPORTED_REDEFINITION_METHOD_ADDED"; 123 case JVMTI_ERROR_UNSUPPORTED_REDEFINITION_SCHEMA_CHANGED: 124 return os << "UNSUPPORTED_REDEFINITION_SCHEMA_CHANGED"; 125 case JVMTI_ERROR_INVALID_TYPESTATE: 126 return os << "INVALID_TYPESTATE"; 127 case JVMTI_ERROR_UNSUPPORTED_REDEFINITION_HIERARCHY_CHANGED: 128 return os << "UNSUPPORTED_REDEFINITION_HIERARCHY_CHANGED"; 129 case JVMTI_ERROR_UNSUPPORTED_REDEFINITION_METHOD_DELETED: 130 return os << "UNSUPPORTED_REDEFINITION_METHOD_DELETED"; 131 case JVMTI_ERROR_UNSUPPORTED_VERSION: 132 return os << "UNSUPPORTED_VERSION"; 133 case JVMTI_ERROR_NAMES_DONT_MATCH: 134 return os << "NAMES_DONT_MATCH"; 135 case JVMTI_ERROR_UNSUPPORTED_REDEFINITION_CLASS_MODIFIERS_CHANGED: 136 return os << "UNSUPPORTED_REDEFINITION_CLASS_MODIFIERS_CHANGED"; 137 case JVMTI_ERROR_UNSUPPORTED_REDEFINITION_METHOD_MODIFIERS_CHANGED: 138 return os << "UNSUPPORTED_REDEFINITION_METHOD_MODIFIERS_CHANGED"; 139 case JVMTI_ERROR_UNMODIFIABLE_CLASS: 140 return os << "JVMTI_ERROR_UNMODIFIABLE_CLASS"; 141 case JVMTI_ERROR_NOT_AVAILABLE: 142 return os << "NOT_AVAILABLE"; 143 case JVMTI_ERROR_MUST_POSSESS_CAPABILITY: 144 return os << "MUST_POSSESS_CAPABILITY"; 145 case JVMTI_ERROR_NULL_POINTER: 146 return os << "NULL_POINTER"; 147 case JVMTI_ERROR_ABSENT_INFORMATION: 148 return os << "ABSENT_INFORMATION"; 149 case JVMTI_ERROR_INVALID_EVENT_TYPE: 150 return os << "INVALID_EVENT_TYPE"; 151 case JVMTI_ERROR_ILLEGAL_ARGUMENT: 152 return os << "ILLEGAL_ARGUMENT"; 153 case JVMTI_ERROR_NATIVE_METHOD: 154 return os << "NATIVE_METHOD"; 155 case JVMTI_ERROR_CLASS_LOADER_UNSUPPORTED: 156 return os << "CLASS_LOADER_UNSUPPORTED"; 157 case JVMTI_ERROR_OUT_OF_MEMORY: 158 return os << "OUT_OF_MEMORY"; 159 case JVMTI_ERROR_ACCESS_DENIED: 160 return os << "ACCESS_DENIED"; 161 case JVMTI_ERROR_WRONG_PHASE: 162 return os << "WRONG_PHASE"; 163 case JVMTI_ERROR_INTERNAL: 164 return os << "INTERNAL"; 165 case JVMTI_ERROR_UNATTACHED_THREAD: 166 return os << "UNATTACHED_THREAD"; 167 case JVMTI_ERROR_INVALID_ENVIRONMENT: 168 return os << "INVALID_ENVIRONMENT"; 169 } 170 LOG(FATAL) << "Unexpected error type " << static_cast<int>(rhs); 171 __builtin_unreachable(); 172 } 173 174 } // namespace art 175
