Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 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 "jni_internal.h" |
| 18 | |
| 19 | #include <sys/mman.h> |
| 20 | #include <zlib.h> |
| 21 | |
Elliott Hughes | 07ed66b | 2012-12-12 18:34:25 -0800 | [diff] [blame] | 22 | #include "base/logging.h" |
Ian Rogers | c7dd295 | 2014-10-21 23:31:19 -0700 | [diff] [blame^] | 23 | #include "base/to_str.h" |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 24 | #include "class_linker.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 25 | #include "class_linker-inl.h" |
Ian Rogers | 4f6ad8a | 2013-03-18 15:27:28 -0700 | [diff] [blame] | 26 | #include "dex_file-inl.h" |
Ian Rogers | 22d5e73 | 2014-07-15 22:23:51 -0700 | [diff] [blame] | 27 | #include "field_helper.h" |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 28 | #include "gc/space/space.h" |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 29 | #include "java_vm_ext.h" |
Brian Carlstrom | ea46f95 | 2013-07-30 01:26:50 -0700 | [diff] [blame] | 30 | #include "mirror/art_field-inl.h" |
| 31 | #include "mirror/art_method-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 32 | #include "mirror/class-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 33 | #include "mirror/object-inl.h" |
| 34 | #include "mirror/object_array-inl.h" |
Ian Rogers | b0fa5dc | 2014-04-28 16:47:08 -0700 | [diff] [blame] | 35 | #include "mirror/string-inl.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 36 | #include "mirror/throwable.h" |
Jeff Hao | 58df327 | 2013-04-22 15:28:53 -0700 | [diff] [blame] | 37 | #include "runtime.h" |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 38 | #include "scoped_thread_state_change.h" |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 39 | #include "thread.h" |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 40 | #include "well_known_classes.h" |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 41 | |
| 42 | namespace art { |
| 43 | |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 44 | /* |
| 45 | * =========================================================================== |
| 46 | * JNI function helpers |
| 47 | * =========================================================================== |
| 48 | */ |
| 49 | |
Elliott Hughes | 3f6635a | 2012-06-19 13:37:49 -0700 | [diff] [blame] | 50 | // Flags passed into ScopedCheck. |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 51 | #define kFlag_Default 0x0000 |
| 52 | |
Elliott Hughes | 3f6635a | 2012-06-19 13:37:49 -0700 | [diff] [blame] | 53 | #define kFlag_CritBad 0x0000 // Calling while in critical is not allowed. |
| 54 | #define kFlag_CritOkay 0x0001 // Calling while in critical is allowed. |
| 55 | #define kFlag_CritGet 0x0002 // This is a critical "get". |
| 56 | #define kFlag_CritRelease 0x0003 // This is a critical "release". |
| 57 | #define kFlag_CritMask 0x0003 // Bit mask to get "crit" value. |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 58 | |
Elliott Hughes | 3f6635a | 2012-06-19 13:37:49 -0700 | [diff] [blame] | 59 | #define kFlag_ExcepBad 0x0000 // Raised exceptions are not allowed. |
| 60 | #define kFlag_ExcepOkay 0x0004 // Raised exceptions are allowed. |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 61 | |
Elliott Hughes | 3f6635a | 2012-06-19 13:37:49 -0700 | [diff] [blame] | 62 | #define kFlag_Release 0x0010 // Are we in a non-critical release function? |
| 63 | #define kFlag_NullableUtf 0x0020 // Are our UTF parameters nullable? |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 64 | |
Elliott Hughes | 3f6635a | 2012-06-19 13:37:49 -0700 | [diff] [blame] | 65 | #define kFlag_Invocation 0x8000 // Part of the invocation interface (JavaVM*). |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 66 | |
Elliott Hughes | 485cac4 | 2011-12-09 17:49:35 -0800 | [diff] [blame] | 67 | #define kFlag_ForceTrace 0x80000000 // Add this to a JNI function's flags if you want to trace every call. |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 68 | /* |
| 69 | * Java primitive types: |
| 70 | * B - jbyte |
| 71 | * C - jchar |
| 72 | * D - jdouble |
| 73 | * F - jfloat |
| 74 | * I - jint |
| 75 | * J - jlong |
| 76 | * S - jshort |
| 77 | * Z - jboolean (shown as true and false) |
| 78 | * V - void |
| 79 | * |
| 80 | * Java reference types: |
| 81 | * L - jobject |
| 82 | * a - jarray |
| 83 | * c - jclass |
| 84 | * s - jstring |
| 85 | * t - jthrowable |
| 86 | * |
| 87 | * JNI types: |
| 88 | * b - jboolean (shown as JNI_TRUE and JNI_FALSE) |
| 89 | * f - jfieldID |
| 90 | * i - JNI error value (JNI_OK, JNI_ERR, JNI_EDETACHED, JNI_EVERSION) |
| 91 | * m - jmethodID |
| 92 | * p - void* |
| 93 | * r - jint (for release mode arguments) |
| 94 | * u - const char* (Modified UTF-8) |
| 95 | * z - jsize (for lengths; use i if negative values are okay) |
| 96 | * v - JavaVM* |
| 97 | * w - jobjectRefType |
| 98 | * E - JNIEnv* |
| 99 | * . - no argument; just print "..." (used for varargs JNI calls) |
| 100 | * |
| 101 | */ |
| 102 | union JniValueType { |
| 103 | jarray a; |
| 104 | jboolean b; |
| 105 | jclass c; |
| 106 | jfieldID f; |
| 107 | jint i; |
| 108 | jmethodID m; |
| 109 | const void* p; // Pointer. |
| 110 | jint r; // Release mode. |
| 111 | jstring s; |
| 112 | jthrowable t; |
| 113 | const char* u; // Modified UTF-8. |
| 114 | JavaVM* v; |
| 115 | jobjectRefType w; |
| 116 | jsize z; |
| 117 | jbyte B; |
| 118 | jchar C; |
| 119 | jdouble D; |
| 120 | JNIEnv* E; |
| 121 | jfloat F; |
| 122 | jint I; |
| 123 | jlong J; |
| 124 | jobject L; |
| 125 | jshort S; |
| 126 | const void* V; // void |
| 127 | jboolean Z; |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 128 | }; |
| 129 | |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 130 | class ScopedCheck { |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 131 | public: |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 132 | explicit ScopedCheck(int flags, const char* functionName, bool has_method = true) |
| 133 | : function_name_(functionName), flags_(flags), indent_(0), has_method_(has_method) { |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 134 | } |
| 135 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 136 | ~ScopedCheck() {} |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 137 | |
Elliott Hughes | 81ff318 | 2012-03-23 20:35:56 -0700 | [diff] [blame] | 138 | // Checks that 'class_name' is a valid "fully-qualified" JNI class name, like "java/lang/Thread" |
| 139 | // or "[Ljava/lang/Object;". A ClassLoader can actually normalize class names a couple of |
| 140 | // times, so using "java.lang.Thread" instead of "java/lang/Thread" might work in some |
| 141 | // circumstances, but this is incorrect. |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 142 | bool CheckClassName(const char* class_name) { |
Ian Rogers | 2d10b20 | 2014-05-12 19:15:18 -0700 | [diff] [blame] | 143 | if ((class_name == nullptr) || !IsValidJniClassName(class_name)) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 144 | AbortF("illegal class name '%s'\n" |
| 145 | " (should be of the form 'package/Class', [Lpackage/Class;' or '[[B')", |
| 146 | class_name); |
| 147 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 148 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 149 | return true; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 150 | } |
| 151 | |
| 152 | /* |
| 153 | * Verify that this instance field ID is valid for this object. |
| 154 | * |
| 155 | * Assumes "jobj" has already been validated. |
| 156 | */ |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 157 | bool CheckInstanceFieldID(ScopedObjectAccess& soa, jobject java_object, jfieldID fid) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 158 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 159 | mirror::Object* o = soa.Decode<mirror::Object*>(java_object); |
| 160 | if (o == nullptr) { |
| 161 | AbortF("field operation on NULL object: %p", java_object); |
| 162 | return false; |
| 163 | } |
| 164 | if (!Runtime::Current()->GetHeap()->IsValidObjectAddress(o)) { |
Mathieu Chartier | 4c13a3f | 2014-07-14 14:57:16 -0700 | [diff] [blame] | 165 | Runtime::Current()->GetHeap()->DumpSpaces(LOG(ERROR)); |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 166 | AbortF("field operation on invalid %s: %p", |
| 167 | ToStr<IndirectRefKind>(GetIndirectRefKind(java_object)).c_str(), |
| 168 | java_object); |
| 169 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 170 | } |
| 171 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 172 | mirror::ArtField* f = CheckFieldID(soa, fid); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 173 | if (f == nullptr) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 174 | return false; |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 175 | } |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 176 | mirror::Class* c = o->GetClass(); |
Mathieu Chartier | 61c5ebc | 2014-06-05 17:42:53 -0700 | [diff] [blame] | 177 | if (c->FindInstanceField(f->GetName(), f->GetTypeDescriptor()) == nullptr) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 178 | AbortF("jfieldID %s not valid for an object of class %s", |
| 179 | PrettyField(f).c_str(), PrettyTypeOf(o).c_str()); |
| 180 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 181 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 182 | return true; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 183 | } |
| 184 | |
| 185 | /* |
| 186 | * Verify that the pointer value is non-NULL. |
| 187 | */ |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 188 | bool CheckNonNull(const void* ptr) { |
| 189 | if (UNLIKELY(ptr == nullptr)) { |
| 190 | AbortF("non-nullable argument was NULL"); |
| 191 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 192 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 193 | return true; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 194 | } |
| 195 | |
| 196 | /* |
| 197 | * Verify that the method's return type matches the type of call. |
| 198 | * 'expectedType' will be "L" for all objects, including arrays. |
| 199 | */ |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 200 | bool CheckMethodAndSig(ScopedObjectAccess& soa, jobject jobj, jclass jc, |
| 201 | jmethodID mid, Primitive::Type type, InvokeType invoke) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 202 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 203 | mirror::ArtMethod* m = CheckMethodID(soa, mid); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 204 | if (m == nullptr) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 205 | return false; |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 206 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 207 | if (type != Primitive::GetType(m->GetShorty()[0])) { |
| 208 | AbortF("the return type of %s does not match %s", function_name_, PrettyMethod(m).c_str()); |
| 209 | return false; |
Elliott Hughes | 3f6635a | 2012-06-19 13:37:49 -0700 | [diff] [blame] | 210 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 211 | bool is_static = (invoke == kStatic); |
| 212 | if (is_static != m->IsStatic()) { |
| 213 | if (is_static) { |
| 214 | AbortF("calling non-static method %s with %s", |
| 215 | PrettyMethod(m).c_str(), function_name_); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 216 | } else { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 217 | AbortF("calling static method %s with %s", |
| 218 | PrettyMethod(m).c_str(), function_name_); |
| 219 | } |
| 220 | return false; |
| 221 | } |
| 222 | if (invoke != kVirtual) { |
| 223 | mirror::Class* c = soa.Decode<mirror::Class*>(jc); |
| 224 | if (!m->GetDeclaringClass()->IsAssignableFrom(c)) { |
| 225 | AbortF("can't call %s %s with class %s", invoke == kStatic ? "static" : "nonvirtual", |
| 226 | PrettyMethod(m).c_str(), PrettyClass(c).c_str()); |
| 227 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 228 | } |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 229 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 230 | if (invoke != kStatic) { |
| 231 | mirror::Object* o = soa.Decode<mirror::Object*>(jobj); |
Mathieu Chartier | a1e78fa | 2014-08-20 12:09:38 -0700 | [diff] [blame] | 232 | if (o == nullptr) { |
| 233 | AbortF("can't call %s on null object", PrettyMethod(m).c_str()); |
| 234 | return false; |
| 235 | } else if (!o->InstanceOf(m->GetDeclaringClass())) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 236 | AbortF("can't call %s on instance of %s", PrettyMethod(m).c_str(), PrettyTypeOf(o).c_str()); |
| 237 | return false; |
| 238 | } |
| 239 | } |
| 240 | return true; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 241 | } |
| 242 | |
| 243 | /* |
| 244 | * Verify that this static field ID is valid for this class. |
| 245 | * |
| 246 | * Assumes "java_class" has already been validated. |
| 247 | */ |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 248 | bool CheckStaticFieldID(ScopedObjectAccess& soa, jclass java_class, jfieldID fid) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 249 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 250 | mirror::Class* c = soa.Decode<mirror::Class*>(java_class); |
| 251 | mirror::ArtField* f = CheckFieldID(soa, fid); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 252 | if (f == nullptr) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 253 | return false; |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 254 | } |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 255 | if (f->GetDeclaringClass() != c) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 256 | AbortF("static jfieldID %p not valid for class %s", fid, PrettyClass(c).c_str()); |
| 257 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 258 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 259 | return true; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 260 | } |
| 261 | |
| 262 | /* |
Elliott Hughes | e84278b | 2012-03-22 10:06:53 -0700 | [diff] [blame] | 263 | * Verify that "mid" is appropriate for "java_class". |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 264 | * |
| 265 | * A mismatch isn't dangerous, because the jmethodID defines the class. In |
Elliott Hughes | e84278b | 2012-03-22 10:06:53 -0700 | [diff] [blame] | 266 | * fact, java_class is unused in the implementation. It's best if we don't |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 267 | * allow bad code in the system though. |
| 268 | * |
Elliott Hughes | e84278b | 2012-03-22 10:06:53 -0700 | [diff] [blame] | 269 | * Instances of "java_class" must be instances of the method's declaring class. |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 270 | */ |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 271 | bool CheckStaticMethod(ScopedObjectAccess& soa, jclass java_class, jmethodID mid) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 272 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 273 | mirror::ArtMethod* m = CheckMethodID(soa, mid); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 274 | if (m == nullptr) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 275 | return false; |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 276 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 277 | mirror::Class* c = soa.Decode<mirror::Class*>(java_class); |
Brian Carlstrom | 67fe2b4 | 2013-10-15 18:51:42 -0700 | [diff] [blame] | 278 | if (!m->GetDeclaringClass()->IsAssignableFrom(c)) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 279 | AbortF("can't call static %s on class %s", PrettyMethod(m).c_str(), PrettyClass(c).c_str()); |
| 280 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 281 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 282 | return true; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 283 | } |
| 284 | |
| 285 | /* |
| 286 | * Verify that "mid" is appropriate for "jobj". |
| 287 | * |
| 288 | * Make sure the object is an instance of the method's declaring class. |
| 289 | * (Note the mid might point to a declaration in an interface; this |
| 290 | * will be handled automatically by the instanceof check.) |
| 291 | */ |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 292 | bool CheckVirtualMethod(ScopedObjectAccess& soa, jobject java_object, jmethodID mid) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 293 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 294 | mirror::ArtMethod* m = CheckMethodID(soa, mid); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 295 | if (m == nullptr) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 296 | return false; |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 297 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 298 | mirror::Object* o = soa.Decode<mirror::Object*>(java_object); |
Mathieu Chartier | a1e78fa | 2014-08-20 12:09:38 -0700 | [diff] [blame] | 299 | if (o == nullptr) { |
| 300 | AbortF("can't call %s on null object", PrettyMethod(m).c_str()); |
| 301 | return false; |
| 302 | } else if (!o->InstanceOf(m->GetDeclaringClass())) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 303 | AbortF("can't call %s on instance of %s", PrettyMethod(m).c_str(), PrettyTypeOf(o).c_str()); |
| 304 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 305 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 306 | return true; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 307 | } |
| 308 | |
| 309 | /** |
| 310 | * The format string is a sequence of the following characters, |
| 311 | * and must be followed by arguments of the corresponding types |
| 312 | * in the same order. |
| 313 | * |
| 314 | * Java primitive types: |
| 315 | * B - jbyte |
| 316 | * C - jchar |
| 317 | * D - jdouble |
| 318 | * F - jfloat |
| 319 | * I - jint |
| 320 | * J - jlong |
| 321 | * S - jshort |
| 322 | * Z - jboolean (shown as true and false) |
| 323 | * V - void |
| 324 | * |
| 325 | * Java reference types: |
| 326 | * L - jobject |
| 327 | * a - jarray |
| 328 | * c - jclass |
| 329 | * s - jstring |
| 330 | * |
| 331 | * JNI types: |
| 332 | * b - jboolean (shown as JNI_TRUE and JNI_FALSE) |
| 333 | * f - jfieldID |
| 334 | * m - jmethodID |
| 335 | * p - void* |
| 336 | * r - jint (for release mode arguments) |
Elliott Hughes | 78090d1 | 2011-10-07 14:31:47 -0700 | [diff] [blame] | 337 | * u - const char* (Modified UTF-8) |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 338 | * z - jsize (for lengths; use i if negative values are okay) |
| 339 | * v - JavaVM* |
| 340 | * E - JNIEnv* |
| 341 | * . - no argument; just print "..." (used for varargs JNI calls) |
| 342 | * |
| 343 | * Use the kFlag_NullableUtf flag where 'u' field(s) are nullable. |
| 344 | */ |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 345 | bool Check(ScopedObjectAccess& soa, bool entry, const char* fmt, JniValueType* args) |
| 346 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 347 | mirror::ArtMethod* traceMethod = nullptr; |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 348 | if (has_method_ && soa.Vm()->IsTracingEnabled()) { |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 349 | // We need to guard some of the invocation interface's calls: a bad caller might |
| 350 | // use DetachCurrentThread or GetEnv on a thread that's not yet attached. |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 351 | Thread* self = Thread::Current(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 352 | if ((flags_ & kFlag_Invocation) == 0 || self != nullptr) { |
| 353 | traceMethod = self->GetCurrentMethod(nullptr); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 354 | } |
| 355 | } |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 356 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 357 | if (((flags_ & kFlag_ForceTrace) != 0) || |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 358 | (traceMethod != nullptr && soa.Vm()->ShouldTrace(traceMethod))) { |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 359 | std::string msg; |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 360 | for (size_t i = 0; fmt[i] != '\0'; ++i) { |
| 361 | TracePossibleHeapValue(soa, entry, fmt[i], args[i], &msg); |
| 362 | if (fmt[i + 1] != '\0') { |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 363 | StringAppendF(&msg, ", "); |
| 364 | } |
| 365 | } |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 366 | |
Elliott Hughes | 485cac4 | 2011-12-09 17:49:35 -0800 | [diff] [blame] | 367 | if ((flags_ & kFlag_ForceTrace) != 0) { |
| 368 | LOG(INFO) << "JNI: call to " << function_name_ << "(" << msg << ")"; |
| 369 | } else if (entry) { |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 370 | if (has_method_) { |
Elliott Hughes | a095764 | 2011-09-02 14:27:33 -0700 | [diff] [blame] | 371 | std::string methodName(PrettyMethod(traceMethod, false)); |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 372 | LOG(INFO) << "JNI: " << methodName << " -> " << function_name_ << "(" << msg << ")"; |
| 373 | indent_ = methodName.size() + 1; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 374 | } else { |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 375 | LOG(INFO) << "JNI: -> " << function_name_ << "(" << msg << ")"; |
| 376 | indent_ = 0; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 377 | } |
| 378 | } else { |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 379 | LOG(INFO) << StringPrintf("JNI: %*s<- %s returned %s", indent_, "", function_name_, msg.c_str()); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 380 | } |
| 381 | } |
| 382 | |
| 383 | // We always do the thorough checks on entry, and never on exit... |
| 384 | if (entry) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 385 | for (size_t i = 0; fmt[i] != '\0'; ++i) { |
| 386 | if (!CheckPossibleHeapValue(soa, fmt[i], args[i])) { |
| 387 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 388 | } |
| 389 | } |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 390 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 391 | return true; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 392 | } |
| 393 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 394 | bool CheckNonHeap(JavaVMExt* vm, bool entry, const char* fmt, JniValueType* args) { |
| 395 | bool should_trace = (flags_ & kFlag_ForceTrace) != 0; |
| 396 | if (!should_trace && vm->IsTracingEnabled()) { |
| 397 | // We need to guard some of the invocation interface's calls: a bad caller might |
| 398 | // use DetachCurrentThread or GetEnv on a thread that's not yet attached. |
| 399 | Thread* self = Thread::Current(); |
| 400 | if ((flags_ & kFlag_Invocation) == 0 || self != nullptr) { |
| 401 | ScopedObjectAccess soa(self); |
| 402 | mirror::ArtMethod* traceMethod = self->GetCurrentMethod(nullptr); |
| 403 | should_trace = (traceMethod != nullptr && vm->ShouldTrace(traceMethod)); |
| 404 | } |
| 405 | } |
| 406 | if (should_trace) { |
| 407 | std::string msg; |
| 408 | for (size_t i = 0; fmt[i] != '\0'; ++i) { |
| 409 | TraceNonHeapValue(fmt[i], args[i], &msg); |
| 410 | if (fmt[i + 1] != '\0') { |
| 411 | StringAppendF(&msg, ", "); |
| 412 | } |
| 413 | } |
| 414 | |
| 415 | if ((flags_ & kFlag_ForceTrace) != 0) { |
| 416 | LOG(INFO) << "JNI: call to " << function_name_ << "(" << msg << ")"; |
| 417 | } else if (entry) { |
| 418 | if (has_method_) { |
| 419 | Thread* self = Thread::Current(); |
| 420 | ScopedObjectAccess soa(self); |
| 421 | mirror::ArtMethod* traceMethod = self->GetCurrentMethod(nullptr); |
| 422 | std::string methodName(PrettyMethod(traceMethod, false)); |
| 423 | LOG(INFO) << "JNI: " << methodName << " -> " << function_name_ << "(" << msg << ")"; |
| 424 | indent_ = methodName.size() + 1; |
| 425 | } else { |
| 426 | LOG(INFO) << "JNI: -> " << function_name_ << "(" << msg << ")"; |
| 427 | indent_ = 0; |
| 428 | } |
| 429 | } else { |
| 430 | LOG(INFO) << StringPrintf("JNI: %*s<- %s returned %s", indent_, "", function_name_, msg.c_str()); |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | // We always do the thorough checks on entry, and never on exit... |
| 435 | if (entry) { |
| 436 | for (size_t i = 0; fmt[i] != '\0'; ++i) { |
| 437 | if (!CheckNonHeapValue(fmt[i], args[i])) { |
| 438 | return false; |
| 439 | } |
| 440 | } |
| 441 | } |
| 442 | return true; |
| 443 | } |
| 444 | |
| 445 | bool CheckReflectedMethod(ScopedObjectAccess& soa, jobject jmethod) |
| 446 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 447 | mirror::Object* method = soa.Decode<mirror::Object*>(jmethod); |
| 448 | if (method == nullptr) { |
| 449 | AbortF("expected non-null method"); |
| 450 | return false; |
| 451 | } |
| 452 | mirror::Class* c = method->GetClass(); |
| 453 | if (soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_reflect_Method) != c && |
| 454 | soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_reflect_Constructor) != c) { |
| 455 | AbortF("expected java.lang.reflect.Method or " |
| 456 | "java.lang.reflect.Constructor but got object of type %s: %p", |
| 457 | PrettyTypeOf(method).c_str(), jmethod); |
| 458 | return false; |
| 459 | } |
| 460 | return true; |
| 461 | } |
| 462 | |
| 463 | bool CheckConstructor(ScopedObjectAccess& soa, jmethodID mid) |
| 464 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 465 | mirror::ArtMethod* method = soa.DecodeMethod(mid); |
| 466 | if (method == nullptr) { |
| 467 | AbortF("expected non-null constructor"); |
| 468 | return false; |
| 469 | } |
| 470 | if (!method->IsConstructor() || method->IsStatic()) { |
| 471 | AbortF("expected a constructor but %s: %p", PrettyTypeOf(method).c_str(), mid); |
| 472 | return false; |
| 473 | } |
| 474 | return true; |
| 475 | } |
| 476 | |
| 477 | bool CheckReflectedField(ScopedObjectAccess& soa, jobject jfield) |
| 478 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 479 | mirror::Object* field = soa.Decode<mirror::Object*>(jfield); |
| 480 | if (field == nullptr) { |
| 481 | AbortF("expected non-null java.lang.reflect.Field"); |
| 482 | return false; |
| 483 | } |
| 484 | mirror::Class* c = field->GetClass(); |
| 485 | if (soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_reflect_Field) != c) { |
| 486 | AbortF("expected java.lang.reflect.Field but got object of type %s: %p", |
| 487 | PrettyTypeOf(field).c_str(), jfield); |
| 488 | return false; |
| 489 | } |
| 490 | return true; |
| 491 | } |
| 492 | |
| 493 | bool CheckThrowable(ScopedObjectAccess& soa, jthrowable jobj) |
| 494 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 495 | mirror::Object* obj = soa.Decode<mirror::Object*>(jobj); |
| 496 | if (!obj->GetClass()->IsThrowableClass()) { |
| 497 | AbortF("expected java.lang.Throwable but got object of type " |
| 498 | "%s: %p", PrettyTypeOf(obj).c_str(), obj); |
| 499 | return false; |
| 500 | } |
| 501 | return true; |
| 502 | } |
| 503 | |
| 504 | bool CheckThrowableClass(ScopedObjectAccess& soa, jclass jc) |
| 505 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 506 | mirror::Class* c = soa.Decode<mirror::Class*>(jc); |
| 507 | if (!c->IsThrowableClass()) { |
| 508 | AbortF("expected java.lang.Throwable class but got object of " |
| 509 | "type %s: %p", PrettyDescriptor(c).c_str(), c); |
| 510 | return false; |
| 511 | } |
| 512 | return true; |
| 513 | } |
| 514 | |
| 515 | bool CheckReferenceKind(IndirectRefKind expected_kind, JavaVMExt* vm, Thread* self, jobject obj) { |
| 516 | IndirectRefKind found_kind; |
| 517 | if (expected_kind == kLocal) { |
| 518 | found_kind = GetIndirectRefKind(obj); |
| 519 | if (found_kind == kHandleScopeOrInvalid && self->HandleScopeContains(obj)) { |
| 520 | found_kind = kLocal; |
| 521 | } |
| 522 | } else { |
| 523 | found_kind = GetIndirectRefKind(obj); |
| 524 | } |
| 525 | if (obj != nullptr && found_kind != expected_kind) { |
| 526 | AbortF("expected reference of kind %s but found %s: %p", |
| 527 | ToStr<IndirectRefKind>(expected_kind).c_str(), |
| 528 | ToStr<IndirectRefKind>(GetIndirectRefKind(obj)).c_str(), |
| 529 | obj); |
| 530 | return false; |
| 531 | } |
| 532 | return true; |
| 533 | } |
| 534 | |
| 535 | bool CheckInstantiableNonArray(ScopedObjectAccess& soa, jclass jc) |
| 536 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 537 | mirror::Class* c = soa.Decode<mirror::Class*>(jc); |
| 538 | if (!c->IsInstantiableNonArray()) { |
| 539 | AbortF("can't make objects of type %s: %p", PrettyDescriptor(c).c_str(), c); |
| 540 | return false; |
| 541 | } |
| 542 | return true; |
| 543 | } |
| 544 | |
| 545 | bool CheckPrimitiveArrayType(ScopedObjectAccess& soa, jarray array, Primitive::Type type) |
| 546 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 547 | if (!CheckArray(soa, array)) { |
| 548 | return false; |
| 549 | } |
| 550 | mirror::Array* a = soa.Decode<mirror::Array*>(array); |
| 551 | if (a->GetClass()->GetComponentType()->GetPrimitiveType() != type) { |
| 552 | AbortF("incompatible array type %s expected %s[]: %p", |
| 553 | PrettyDescriptor(a->GetClass()).c_str(), PrettyDescriptor(type).c_str(), array); |
| 554 | return false; |
| 555 | } |
| 556 | return true; |
| 557 | } |
| 558 | |
| 559 | bool CheckFieldAccess(ScopedObjectAccess& soa, jobject obj, jfieldID fid, bool is_static, |
| 560 | Primitive::Type type) |
| 561 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 562 | if (is_static && !CheckStaticFieldID(soa, down_cast<jclass>(obj), fid)) { |
| 563 | return false; |
| 564 | } |
| 565 | if (!is_static && !CheckInstanceFieldID(soa, obj, fid)) { |
| 566 | return false; |
| 567 | } |
| 568 | mirror::ArtField* field = soa.DecodeField(fid); |
| 569 | DCHECK(field != nullptr); // Already checked by Check. |
| 570 | if (is_static != field->IsStatic()) { |
| 571 | AbortF("attempt to access %s field %s: %p", |
| 572 | field->IsStatic() ? "static" : "non-static", PrettyField(field).c_str(), fid); |
| 573 | return false; |
| 574 | } |
| 575 | if (type != field->GetTypeAsPrimitiveType()) { |
| 576 | AbortF("attempt to access field %s of type %s with the wrong type %s: %p", |
| 577 | PrettyField(field).c_str(), PrettyDescriptor(field->GetTypeDescriptor()).c_str(), |
| 578 | PrettyDescriptor(type).c_str(), fid); |
| 579 | return false; |
| 580 | } |
| 581 | if (is_static) { |
| 582 | mirror::Object* o = soa.Decode<mirror::Object*>(obj); |
| 583 | if (o == nullptr || !o->IsClass()) { |
| 584 | AbortF("attempt to access static field %s with a class argument of type %s: %p", |
| 585 | PrettyField(field).c_str(), PrettyTypeOf(o).c_str(), fid); |
| 586 | return false; |
| 587 | } |
| 588 | mirror::Class* c = o->AsClass(); |
| 589 | if (field->GetDeclaringClass() != c) { |
| 590 | AbortF("attempt to access static field %s with an incompatible class argument of %s: %p", |
| 591 | PrettyField(field).c_str(), PrettyDescriptor(c).c_str(), fid); |
| 592 | return false; |
| 593 | } |
| 594 | } else { |
| 595 | mirror::Object* o = soa.Decode<mirror::Object*>(obj); |
| 596 | if (o == nullptr || !field->GetDeclaringClass()->IsAssignableFrom(o->GetClass())) { |
| 597 | AbortF("attempt to access field %s from an object argument of type %s: %p", |
| 598 | PrettyField(field).c_str(), PrettyTypeOf(o).c_str(), fid); |
| 599 | return false; |
| 600 | } |
| 601 | } |
| 602 | return true; |
| 603 | } |
| 604 | |
| 605 | private: |
Elliott Hughes | a92853e | 2012-02-07 16:09:27 -0800 | [diff] [blame] | 606 | enum InstanceKind { |
| 607 | kClass, |
Elliott Hughes | 0f3c553 | 2012-03-30 14:51:51 -0700 | [diff] [blame] | 608 | kDirectByteBuffer, |
| 609 | kObject, |
| 610 | kString, |
| 611 | kThrowable, |
Elliott Hughes | a92853e | 2012-02-07 16:09:27 -0800 | [diff] [blame] | 612 | }; |
| 613 | |
| 614 | /* |
| 615 | * Verify that "jobj" is a valid non-NULL object reference, and points to |
| 616 | * an instance of expectedClass. |
| 617 | * |
| 618 | * Because we're looking at an object on the GC heap, we have to switch |
| 619 | * to "running" mode before doing the checks. |
| 620 | */ |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 621 | bool CheckInstance(ScopedObjectAccess& soa, InstanceKind kind, jobject java_object, bool null_ok) |
Ian Rogers | b726dcb | 2012-09-05 08:57:23 -0700 | [diff] [blame] | 622 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 623 | const char* what = nullptr; |
Elliott Hughes | a92853e | 2012-02-07 16:09:27 -0800 | [diff] [blame] | 624 | switch (kind) { |
| 625 | case kClass: |
| 626 | what = "jclass"; |
| 627 | break; |
| 628 | case kDirectByteBuffer: |
| 629 | what = "direct ByteBuffer"; |
| 630 | break; |
| 631 | case kObject: |
| 632 | what = "jobject"; |
| 633 | break; |
| 634 | case kString: |
| 635 | what = "jstring"; |
| 636 | break; |
| 637 | case kThrowable: |
| 638 | what = "jthrowable"; |
| 639 | break; |
| 640 | default: |
Elliott Hughes | 7b9d996 | 2012-04-20 18:48:18 -0700 | [diff] [blame] | 641 | LOG(FATAL) << "Unknown kind " << static_cast<int>(kind); |
Elliott Hughes | a92853e | 2012-02-07 16:09:27 -0800 | [diff] [blame] | 642 | } |
| 643 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 644 | if (java_object == nullptr) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 645 | if (null_ok) { |
| 646 | return true; |
| 647 | } else { |
| 648 | AbortF("%s received NULL %s", function_name_, what); |
| 649 | return false; |
| 650 | } |
Elliott Hughes | a92853e | 2012-02-07 16:09:27 -0800 | [diff] [blame] | 651 | } |
| 652 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 653 | mirror::Object* obj = soa.Decode<mirror::Object*>(java_object); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 654 | if (obj == nullptr) { |
| 655 | // Either java_object is invalid or is a cleared weak. |
| 656 | IndirectRef ref = reinterpret_cast<IndirectRef>(java_object); |
| 657 | bool okay; |
| 658 | if (GetIndirectRefKind(ref) != kWeakGlobal) { |
| 659 | okay = false; |
| 660 | } else { |
| 661 | obj = soa.Vm()->DecodeWeakGlobal(soa.Self(), ref); |
| 662 | okay = Runtime::Current()->IsClearedJniWeakGlobal(obj); |
| 663 | } |
| 664 | if (!okay) { |
| 665 | AbortF("%s is an invalid %s: %p (%p)", |
| 666 | what, ToStr<IndirectRefKind>(GetIndirectRefKind(java_object)).c_str(), |
| 667 | java_object, obj); |
| 668 | return false; |
| 669 | } |
| 670 | } |
| 671 | |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 672 | if (!Runtime::Current()->GetHeap()->IsValidObjectAddress(obj)) { |
Mathieu Chartier | 4c13a3f | 2014-07-14 14:57:16 -0700 | [diff] [blame] | 673 | Runtime::Current()->GetHeap()->DumpSpaces(LOG(ERROR)); |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 674 | AbortF("%s is an invalid %s: %p (%p)", |
| 675 | what, ToStr<IndirectRefKind>(GetIndirectRefKind(java_object)).c_str(), |
| 676 | java_object, obj); |
Elliott Hughes | a92853e | 2012-02-07 16:09:27 -0800 | [diff] [blame] | 677 | return false; |
| 678 | } |
| 679 | |
| 680 | bool okay = true; |
| 681 | switch (kind) { |
| 682 | case kClass: |
| 683 | okay = obj->IsClass(); |
| 684 | break; |
| 685 | case kDirectByteBuffer: |
| 686 | UNIMPLEMENTED(FATAL); |
| 687 | break; |
| 688 | case kString: |
| 689 | okay = obj->GetClass()->IsStringClass(); |
| 690 | break; |
| 691 | case kThrowable: |
| 692 | okay = obj->GetClass()->IsThrowableClass(); |
| 693 | break; |
| 694 | case kObject: |
| 695 | break; |
| 696 | } |
| 697 | if (!okay) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 698 | AbortF("%s has wrong type: %s", what, PrettyTypeOf(obj).c_str()); |
Elliott Hughes | a92853e | 2012-02-07 16:09:27 -0800 | [diff] [blame] | 699 | return false; |
| 700 | } |
| 701 | |
| 702 | return true; |
| 703 | } |
| 704 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 705 | /* |
| 706 | * Verify that the "mode" argument passed to a primitive array Release |
| 707 | * function is one of the valid values. |
| 708 | */ |
| 709 | bool CheckReleaseMode(jint mode) { |
| 710 | if (mode != 0 && mode != JNI_COMMIT && mode != JNI_ABORT) { |
| 711 | AbortF("unknown value for release mode: %d", mode); |
| 712 | return false; |
| 713 | } |
| 714 | return true; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 715 | } |
| 716 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 717 | bool CheckPossibleHeapValue(ScopedObjectAccess& soa, char fmt, JniValueType arg) |
| 718 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 719 | switch (fmt) { |
| 720 | case 'a': // jarray |
| 721 | return CheckArray(soa, arg.a); |
| 722 | case 'c': // jclass |
| 723 | return CheckInstance(soa, kClass, arg.c, false); |
| 724 | case 'f': // jfieldID |
| 725 | return CheckFieldID(soa, arg.f) != nullptr; |
| 726 | case 'm': // jmethodID |
| 727 | return CheckMethodID(soa, arg.m) != nullptr; |
| 728 | case 'r': // release int |
| 729 | return CheckReleaseMode(arg.r); |
| 730 | case 's': // jstring |
| 731 | return CheckInstance(soa, kString, arg.s, false); |
| 732 | case 't': // jthrowable |
| 733 | return CheckInstance(soa, kThrowable, arg.t, false); |
| 734 | case 'E': // JNIEnv* |
| 735 | return CheckThread(arg.E); |
| 736 | case 'L': // jobject |
| 737 | return CheckInstance(soa, kObject, arg.L, true); |
| 738 | default: |
| 739 | return CheckNonHeapValue(fmt, arg); |
| 740 | } |
| 741 | } |
| 742 | |
| 743 | bool CheckNonHeapValue(char fmt, JniValueType arg) { |
| 744 | switch (fmt) { |
| 745 | case '.': // ... |
| 746 | case 'p': // TODO: pointer - null or readable? |
| 747 | case 'v': // JavaVM* |
| 748 | case 'B': // jbyte |
| 749 | case 'C': // jchar |
| 750 | case 'D': // jdouble |
| 751 | case 'F': // jfloat |
| 752 | case 'I': // jint |
| 753 | case 'J': // jlong |
| 754 | case 'S': // jshort |
| 755 | break; // Ignored. |
| 756 | case 'b': // jboolean, why two? Fall-through. |
| 757 | case 'Z': |
| 758 | return CheckBoolean(arg.Z); |
| 759 | case 'u': // utf8 |
| 760 | if ((flags_ & kFlag_Release) != 0) { |
| 761 | return CheckNonNull(arg.u); |
| 762 | } else { |
| 763 | bool nullable = ((flags_ & kFlag_NullableUtf) != 0); |
| 764 | return CheckUtfString(arg.u, nullable); |
| 765 | } |
| 766 | case 'w': // jobjectRefType |
| 767 | switch (arg.w) { |
| 768 | case JNIInvalidRefType: |
| 769 | case JNILocalRefType: |
| 770 | case JNIGlobalRefType: |
| 771 | case JNIWeakGlobalRefType: |
| 772 | break; |
| 773 | default: |
| 774 | AbortF("Unknown reference type"); |
| 775 | return false; |
| 776 | } |
| 777 | break; |
| 778 | case 'z': // jsize |
| 779 | return CheckLengthPositive(arg.z); |
| 780 | default: |
| 781 | AbortF("unknown format specifier: '%c'", fmt); |
| 782 | return false; |
| 783 | } |
| 784 | return true; |
| 785 | } |
| 786 | |
| 787 | void TracePossibleHeapValue(ScopedObjectAccess& soa, bool entry, char fmt, JniValueType arg, |
| 788 | std::string* msg) |
| 789 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 790 | switch (fmt) { |
| 791 | case 'L': // jobject fall-through. |
| 792 | case 'a': // jarray fall-through. |
| 793 | case 's': // jstring fall-through. |
| 794 | case 't': // jthrowable fall-through. |
| 795 | if (arg.L == nullptr) { |
| 796 | *msg += "NULL"; |
| 797 | } else { |
| 798 | StringAppendF(msg, "%p", arg.L); |
| 799 | } |
| 800 | break; |
| 801 | case 'c': { // jclass |
| 802 | jclass jc = arg.c; |
| 803 | mirror::Class* c = soa.Decode<mirror::Class*>(jc); |
| 804 | if (c == nullptr) { |
| 805 | *msg += "NULL"; |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 806 | } else if (!Runtime::Current()->GetHeap()->IsValidObjectAddress(c)) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 807 | StringAppendF(msg, "INVALID POINTER:%p", jc); |
| 808 | } else if (!c->IsClass()) { |
| 809 | *msg += "INVALID NON-CLASS OBJECT OF TYPE:" + PrettyTypeOf(c); |
| 810 | } else { |
| 811 | *msg += PrettyClass(c); |
| 812 | if (!entry) { |
| 813 | StringAppendF(msg, " (%p)", jc); |
| 814 | } |
| 815 | } |
| 816 | break; |
| 817 | } |
| 818 | case 'f': { // jfieldID |
| 819 | jfieldID fid = arg.f; |
| 820 | mirror::ArtField* f = soa.DecodeField(fid); |
| 821 | *msg += PrettyField(f); |
| 822 | if (!entry) { |
| 823 | StringAppendF(msg, " (%p)", fid); |
| 824 | } |
| 825 | break; |
| 826 | } |
| 827 | case 'm': { // jmethodID |
| 828 | jmethodID mid = arg.m; |
| 829 | mirror::ArtMethod* m = soa.DecodeMethod(mid); |
| 830 | *msg += PrettyMethod(m); |
| 831 | if (!entry) { |
| 832 | StringAppendF(msg, " (%p)", mid); |
| 833 | } |
| 834 | break; |
| 835 | } |
| 836 | default: |
| 837 | TraceNonHeapValue(fmt, arg, msg); |
| 838 | break; |
| 839 | } |
| 840 | } |
| 841 | |
| 842 | void TraceNonHeapValue(char fmt, JniValueType arg, std::string* msg) { |
| 843 | switch (fmt) { |
| 844 | case 'B': // jbyte |
| 845 | if (arg.B >= 0 && arg.B < 10) { |
| 846 | StringAppendF(msg, "%d", arg.B); |
| 847 | } else { |
| 848 | StringAppendF(msg, "%#x (%d)", arg.B, arg.B); |
| 849 | } |
| 850 | break; |
| 851 | case 'C': // jchar |
| 852 | if (arg.C < 0x7f && arg.C >= ' ') { |
| 853 | StringAppendF(msg, "U+%x ('%c')", arg.C, arg.C); |
| 854 | } else { |
| 855 | StringAppendF(msg, "U+%x", arg.C); |
| 856 | } |
| 857 | break; |
| 858 | case 'F': // jfloat |
| 859 | StringAppendF(msg, "%g", arg.F); |
| 860 | break; |
| 861 | case 'D': // jdouble |
| 862 | StringAppendF(msg, "%g", arg.D); |
| 863 | break; |
| 864 | case 'S': // jshort |
| 865 | StringAppendF(msg, "%d", arg.S); |
| 866 | break; |
| 867 | case 'i': // jint - fall-through. |
| 868 | case 'I': // jint |
| 869 | StringAppendF(msg, "%d", arg.I); |
| 870 | break; |
| 871 | case 'J': // jlong |
| 872 | StringAppendF(msg, "%" PRId64, arg.J); |
| 873 | break; |
| 874 | case 'Z': // jboolean |
| 875 | case 'b': // jboolean (JNI-style) |
| 876 | *msg += arg.b == JNI_TRUE ? "true" : "false"; |
| 877 | break; |
| 878 | case 'V': // void |
| 879 | DCHECK(arg.V == nullptr); |
| 880 | *msg += "void"; |
| 881 | break; |
| 882 | case 'v': // JavaVM* |
| 883 | StringAppendF(msg, "(JavaVM*)%p", arg.v); |
| 884 | break; |
| 885 | case 'E': |
| 886 | StringAppendF(msg, "(JNIEnv*)%p", arg.E); |
| 887 | break; |
| 888 | case 'z': // non-negative jsize |
| 889 | // You might expect jsize to be size_t, but it's not; it's the same as jint. |
| 890 | // We only treat this specially so we can do the non-negative check. |
| 891 | // TODO: maybe this wasn't worth it? |
| 892 | StringAppendF(msg, "%d", arg.z); |
| 893 | break; |
| 894 | case 'p': // void* ("pointer") |
| 895 | if (arg.p == nullptr) { |
| 896 | *msg += "NULL"; |
| 897 | } else { |
| 898 | StringAppendF(msg, "(void*) %p", arg.p); |
| 899 | } |
| 900 | break; |
| 901 | case 'r': { // jint (release mode) |
| 902 | jint releaseMode = arg.r; |
| 903 | if (releaseMode == 0) { |
| 904 | *msg += "0"; |
| 905 | } else if (releaseMode == JNI_ABORT) { |
| 906 | *msg += "JNI_ABORT"; |
| 907 | } else if (releaseMode == JNI_COMMIT) { |
| 908 | *msg += "JNI_COMMIT"; |
| 909 | } else { |
| 910 | StringAppendF(msg, "invalid release mode %d", releaseMode); |
| 911 | } |
| 912 | break; |
| 913 | } |
| 914 | case 'u': // const char* (Modified UTF-8) |
| 915 | if (arg.u == nullptr) { |
| 916 | *msg += "NULL"; |
| 917 | } else { |
| 918 | StringAppendF(msg, "\"%s\"", arg.u); |
| 919 | } |
| 920 | break; |
| 921 | case 'w': // jobjectRefType |
| 922 | switch (arg.w) { |
| 923 | case JNIInvalidRefType: |
| 924 | *msg += "invalid reference type"; |
| 925 | break; |
| 926 | case JNILocalRefType: |
| 927 | *msg += "local ref type"; |
| 928 | break; |
| 929 | case JNIGlobalRefType: |
| 930 | *msg += "global ref type"; |
| 931 | break; |
| 932 | case JNIWeakGlobalRefType: |
| 933 | *msg += "weak global ref type"; |
| 934 | break; |
| 935 | default: |
| 936 | *msg += "unknown ref type"; |
| 937 | break; |
| 938 | } |
| 939 | break; |
| 940 | case '.': |
| 941 | *msg += "..."; |
| 942 | break; |
| 943 | default: |
| 944 | LOG(FATAL) << function_name_ << ": unknown trace format specifier: '" << fmt << "'"; |
| 945 | } |
| 946 | } |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 947 | /* |
| 948 | * Verify that "array" is non-NULL and points to an Array object. |
| 949 | * |
| 950 | * Since we're dealing with objects, switch to "running" mode. |
| 951 | */ |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 952 | bool CheckArray(ScopedObjectAccess& soa, jarray java_array) |
| 953 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 954 | if (UNLIKELY(java_array == nullptr)) { |
| 955 | AbortF("jarray was NULL"); |
| 956 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 957 | } |
| 958 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 959 | mirror::Array* a = soa.Decode<mirror::Array*>(java_array); |
| 960 | if (UNLIKELY(!Runtime::Current()->GetHeap()->IsValidObjectAddress(a))) { |
Mathieu Chartier | 4c13a3f | 2014-07-14 14:57:16 -0700 | [diff] [blame] | 961 | Runtime::Current()->GetHeap()->DumpSpaces(LOG(ERROR)); |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 962 | AbortF("jarray is an invalid %s: %p (%p)", |
| 963 | ToStr<IndirectRefKind>(GetIndirectRefKind(java_array)).c_str(), |
| 964 | java_array, a); |
| 965 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 966 | } else if (!a->IsArrayInstance()) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 967 | AbortF("jarray argument has non-array type: %s", PrettyTypeOf(a).c_str()); |
| 968 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 969 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 970 | return true; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 971 | } |
| 972 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 973 | bool CheckBoolean(jboolean z) { |
| 974 | if (z != JNI_TRUE && z != JNI_FALSE) { |
| 975 | AbortF("unexpected jboolean value: %d", z); |
| 976 | return false; |
| 977 | } |
| 978 | return true; |
| 979 | } |
| 980 | |
| 981 | bool CheckLengthPositive(jsize length) { |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 982 | if (length < 0) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 983 | AbortF("negative jsize: %d", length); |
| 984 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 985 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 986 | return true; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 987 | } |
| 988 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 989 | mirror::ArtField* CheckFieldID(ScopedObjectAccess& soa, jfieldID fid) |
| 990 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 991 | if (fid == nullptr) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 992 | AbortF("jfieldID was NULL"); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 993 | return nullptr; |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 994 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 995 | mirror::ArtField* f = soa.DecodeField(fid); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 996 | if (!Runtime::Current()->GetHeap()->IsValidObjectAddress(f) || !f->IsArtField()) { |
Mathieu Chartier | 4c13a3f | 2014-07-14 14:57:16 -0700 | [diff] [blame] | 997 | Runtime::Current()->GetHeap()->DumpSpaces(LOG(ERROR)); |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 998 | AbortF("invalid jfieldID: %p", fid); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 999 | return nullptr; |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 1000 | } |
| 1001 | return f; |
| 1002 | } |
| 1003 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1004 | mirror::ArtMethod* CheckMethodID(ScopedObjectAccess& soa, jmethodID mid) |
| 1005 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1006 | if (mid == nullptr) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1007 | AbortF("jmethodID was NULL"); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1008 | return nullptr; |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 1009 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1010 | mirror::ArtMethod* m = soa.DecodeMethod(mid); |
Mathieu Chartier | 590fee9 | 2013-09-13 13:46:47 -0700 | [diff] [blame] | 1011 | if (!Runtime::Current()->GetHeap()->IsValidObjectAddress(m) || !m->IsArtMethod()) { |
Mathieu Chartier | 4c13a3f | 2014-07-14 14:57:16 -0700 | [diff] [blame] | 1012 | Runtime::Current()->GetHeap()->DumpSpaces(LOG(ERROR)); |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1013 | AbortF("invalid jmethodID: %p", mid); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1014 | return nullptr; |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 1015 | } |
| 1016 | return m; |
| 1017 | } |
| 1018 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1019 | bool CheckThread(JNIEnv* env) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1020 | Thread* self = Thread::Current(); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1021 | if (self == nullptr) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1022 | AbortF("a thread (tid %d) is making JNI calls without being attached", GetTid()); |
| 1023 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1024 | } |
| 1025 | |
| 1026 | // Get the *correct* JNIEnv by going through our TLS pointer. |
| 1027 | JNIEnvExt* threadEnv = self->GetJniEnv(); |
| 1028 | |
Elliott Hughes | 3f6635a | 2012-06-19 13:37:49 -0700 | [diff] [blame] | 1029 | // Verify that the current thread is (a) attached and (b) associated with |
| 1030 | // this particular instance of JNIEnv. |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1031 | if (env != threadEnv) { |
| 1032 | AbortF("thread %s using JNIEnv* from thread %s", |
| 1033 | ToStr<Thread>(*self).c_str(), ToStr<Thread>(*self).c_str()); |
| 1034 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1035 | } |
| 1036 | |
Elliott Hughes | 3f6635a | 2012-06-19 13:37:49 -0700 | [diff] [blame] | 1037 | // Verify that, if this thread previously made a critical "get" call, we |
| 1038 | // do the corresponding "release" call before we try anything else. |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1039 | switch (flags_ & kFlag_CritMask) { |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1040 | case kFlag_CritOkay: // okay to call this method |
| 1041 | break; |
| 1042 | case kFlag_CritBad: // not okay to call |
| 1043 | if (threadEnv->critical) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1044 | AbortF("thread %s using JNI after critical get", |
| 1045 | ToStr<Thread>(*self).c_str()); |
| 1046 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1047 | } |
| 1048 | break; |
| 1049 | case kFlag_CritGet: // this is a "get" call |
Elliott Hughes | 3f6635a | 2012-06-19 13:37:49 -0700 | [diff] [blame] | 1050 | // Don't check here; we allow nested gets. |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1051 | threadEnv->critical++; |
| 1052 | break; |
Brian Carlstrom | 7934ac2 | 2013-07-26 10:54:15 -0700 | [diff] [blame] | 1053 | case kFlag_CritRelease: // this is a "release" call |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1054 | threadEnv->critical--; |
| 1055 | if (threadEnv->critical < 0) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1056 | AbortF("thread %s called too many critical releases", |
| 1057 | ToStr<Thread>(*self).c_str()); |
| 1058 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1059 | } |
| 1060 | break; |
| 1061 | default: |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1062 | LOG(FATAL) << "Bad flags (internal error): " << flags_; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1063 | } |
| 1064 | |
Elliott Hughes | 3f6635a | 2012-06-19 13:37:49 -0700 | [diff] [blame] | 1065 | // Verify that, if an exception has been raised, the native code doesn't |
| 1066 | // make any JNI calls other than the Exception* methods. |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1067 | if ((flags_ & kFlag_ExcepOkay) == 0 && self->IsExceptionPending()) { |
Ian Rogers | 62d6c77 | 2013-02-27 08:32:07 -0800 | [diff] [blame] | 1068 | ThrowLocation throw_location; |
| 1069 | mirror::Throwable* exception = self->GetException(&throw_location); |
| 1070 | std::string type(PrettyTypeOf(exception)); |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1071 | AbortF("JNI %s called with pending exception '%s' thrown in %s", |
| 1072 | function_name_, type.c_str(), throw_location.Dump().c_str()); |
| 1073 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1074 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1075 | return true; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1076 | } |
| 1077 | |
Elliott Hughes | 3f6635a | 2012-06-19 13:37:49 -0700 | [diff] [blame] | 1078 | // Verifies that "bytes" points to valid Modified UTF-8 data. |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1079 | bool CheckUtfString(const char* bytes, bool nullable) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1080 | if (bytes == nullptr) { |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1081 | if (!nullable) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1082 | AbortF("non-nullable const char* was NULL"); |
| 1083 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1084 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1085 | return true; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1086 | } |
| 1087 | |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1088 | const char* errorKind = nullptr; |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 1089 | uint8_t utf8 = CheckUtfBytes(bytes, &errorKind); |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1090 | if (errorKind != nullptr) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1091 | AbortF("input is not valid Modified UTF-8: illegal %s byte %#x\n" |
| 1092 | " string: '%s'", errorKind, utf8, bytes); |
| 1093 | return false; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1094 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1095 | return true; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1096 | } |
| 1097 | |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 1098 | static uint8_t CheckUtfBytes(const char* bytes, const char** errorKind) { |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1099 | while (*bytes != '\0') { |
| 1100 | uint8_t utf8 = *(bytes++); |
| 1101 | // Switch on the high four bits. |
| 1102 | switch (utf8 >> 4) { |
| 1103 | case 0x00: |
| 1104 | case 0x01: |
| 1105 | case 0x02: |
| 1106 | case 0x03: |
| 1107 | case 0x04: |
| 1108 | case 0x05: |
| 1109 | case 0x06: |
| 1110 | case 0x07: |
| 1111 | // Bit pattern 0xxx. No need for any extra bytes. |
| 1112 | break; |
| 1113 | case 0x08: |
| 1114 | case 0x09: |
| 1115 | case 0x0a: |
| 1116 | case 0x0b: |
| 1117 | case 0x0f: |
| 1118 | /* |
| 1119 | * Bit pattern 10xx or 1111, which are illegal start bytes. |
| 1120 | * Note: 1111 is valid for normal UTF-8, but not the |
Elliott Hughes | 78090d1 | 2011-10-07 14:31:47 -0700 | [diff] [blame] | 1121 | * Modified UTF-8 used here. |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1122 | */ |
| 1123 | *errorKind = "start"; |
| 1124 | return utf8; |
| 1125 | case 0x0e: |
| 1126 | // Bit pattern 1110, so there are two additional bytes. |
| 1127 | utf8 = *(bytes++); |
| 1128 | if ((utf8 & 0xc0) != 0x80) { |
| 1129 | *errorKind = "continuation"; |
| 1130 | return utf8; |
| 1131 | } |
Ian Rogers | fc787ec | 2014-10-09 21:56:44 -0700 | [diff] [blame] | 1132 | FALLTHROUGH_INTENDED; // Fall-through to take care of the final byte. |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1133 | case 0x0c: |
| 1134 | case 0x0d: |
| 1135 | // Bit pattern 110x, so there is one additional byte. |
| 1136 | utf8 = *(bytes++); |
| 1137 | if ((utf8 & 0xc0) != 0x80) { |
| 1138 | *errorKind = "continuation"; |
| 1139 | return utf8; |
| 1140 | } |
| 1141 | break; |
| 1142 | } |
| 1143 | } |
| 1144 | return 0; |
| 1145 | } |
| 1146 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1147 | void AbortF(const char* fmt, ...) __attribute__((__format__(__printf__, 2, 3))) { |
| 1148 | va_list args; |
| 1149 | va_start(args, fmt); |
| 1150 | Runtime::Current()->GetJavaVM()->JniAbortV(function_name_, fmt, args); |
| 1151 | va_end(args); |
| 1152 | } |
| 1153 | |
| 1154 | // The name of the JNI function being checked. |
| 1155 | const char* const function_name_; |
| 1156 | |
| 1157 | const int flags_; |
Elliott Hughes | 92cb498 | 2011-12-16 16:57:28 -0800 | [diff] [blame] | 1158 | int indent_; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1159 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1160 | const bool has_method_; |
| 1161 | |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1162 | DISALLOW_COPY_AND_ASSIGN(ScopedCheck); |
| 1163 | }; |
| 1164 | |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1165 | /* |
| 1166 | * =========================================================================== |
| 1167 | * Guarded arrays |
| 1168 | * =========================================================================== |
| 1169 | */ |
| 1170 | |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1171 | /* this gets tucked in at the start of the buffer; struct size must be even */ |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1172 | class GuardedCopy { |
| 1173 | public: |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1174 | /* |
| 1175 | * Create an over-sized buffer to hold the contents of "buf". Copy it in, |
| 1176 | * filling in the area around it with guard data. |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1177 | */ |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1178 | static void* Create(const void* original_buf, size_t len, bool mod_okay) { |
| 1179 | const size_t new_len = LengthIncludingRedZones(len); |
| 1180 | uint8_t* const new_buf = DebugAlloc(new_len); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1181 | |
Elliott Hughes | 3f6635a | 2012-06-19 13:37:49 -0700 | [diff] [blame] | 1182 | // If modification is not expected, grab a checksum. |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1183 | uLong adler = 0; |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1184 | if (!mod_okay) { |
| 1185 | adler = adler32(adler32(0L, Z_NULL, 0), reinterpret_cast<const Bytef*>(original_buf), len); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1186 | } |
| 1187 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1188 | GuardedCopy* copy = new (new_buf) GuardedCopy(original_buf, len, adler); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1189 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1190 | // Fill begin region with canary pattern. |
| 1191 | const size_t kStartCanaryLength = (GuardedCopy::kRedZoneSize / 2) - sizeof(GuardedCopy); |
| 1192 | for (size_t i = 0, j = 0; i < kStartCanaryLength; ++i) { |
| 1193 | const_cast<char*>(copy->StartRedZone())[i] = kCanary[j]; |
| 1194 | if (kCanary[j] == '\0') { |
| 1195 | j = 0; |
| 1196 | } |
| 1197 | } |
| 1198 | |
| 1199 | // Copy the data in; note "len" could be zero. |
| 1200 | memcpy(const_cast<uint8_t*>(copy->BufferWithinRedZones()), original_buf, len); |
| 1201 | |
| 1202 | // Fill end region with canary pattern. |
| 1203 | for (size_t i = 0, j = 0; i < kEndCanaryLength; ++i) { |
| 1204 | const_cast<char*>(copy->EndRedZone())[i] = kCanary[j]; |
| 1205 | if (kCanary[j] == '\0') { |
| 1206 | j = 0; |
| 1207 | } |
| 1208 | } |
| 1209 | |
| 1210 | return const_cast<uint8_t*>(copy->BufferWithinRedZones()); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1211 | } |
| 1212 | |
| 1213 | /* |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1214 | * Create a guarded copy of a primitive array. Modifications to the copied |
| 1215 | * data are allowed. Returns a pointer to the copied data. |
| 1216 | */ |
| 1217 | static void* CreateGuardedPACopy(JNIEnv* env, const jarray java_array, jboolean* is_copy) { |
| 1218 | ScopedObjectAccess soa(env); |
| 1219 | |
| 1220 | mirror::Array* a = soa.Decode<mirror::Array*>(java_array); |
| 1221 | size_t component_size = a->GetClass()->GetComponentSize(); |
| 1222 | size_t byte_count = a->GetLength() * component_size; |
| 1223 | void* result = Create(a->GetRawData(component_size, 0), byte_count, true); |
| 1224 | if (is_copy != nullptr) { |
| 1225 | *is_copy = JNI_TRUE; |
| 1226 | } |
| 1227 | return result; |
| 1228 | } |
| 1229 | |
| 1230 | /* |
| 1231 | * Perform the array "release" operation, which may or may not copy data |
| 1232 | * back into the managed heap, and may or may not release the underlying storage. |
| 1233 | */ |
| 1234 | static void* ReleaseGuardedPACopy(const char* function_name, JNIEnv* env, jarray java_array, |
| 1235 | void* embedded_buf, int mode) { |
| 1236 | ScopedObjectAccess soa(env); |
| 1237 | mirror::Array* a = soa.Decode<mirror::Array*>(java_array); |
| 1238 | |
| 1239 | if (!GuardedCopy::Check(function_name, embedded_buf, true)) { |
| 1240 | return nullptr; |
| 1241 | } |
| 1242 | if (mode != JNI_ABORT) { |
| 1243 | size_t len = FromEmbedded(embedded_buf)->original_length_; |
| 1244 | memcpy(a->GetRawData(a->GetClass()->GetComponentSize(), 0), embedded_buf, len); |
| 1245 | } |
| 1246 | if (mode != JNI_COMMIT) { |
| 1247 | return Destroy(embedded_buf); |
| 1248 | } |
| 1249 | return embedded_buf; |
| 1250 | } |
| 1251 | |
| 1252 | |
| 1253 | /* |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1254 | * Free up the guard buffer, scrub it, and return the original pointer. |
| 1255 | */ |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1256 | static void* Destroy(void* embedded_buf) { |
| 1257 | GuardedCopy* copy = FromEmbedded(embedded_buf); |
| 1258 | void* original_ptr = const_cast<void*>(copy->original_ptr_); |
| 1259 | size_t len = LengthIncludingRedZones(copy->original_length_); |
| 1260 | DebugFree(copy, len); |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 1261 | return original_ptr; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1262 | } |
| 1263 | |
| 1264 | /* |
| 1265 | * Verify the guard area and, if "modOkay" is false, that the data itself |
| 1266 | * has not been altered. |
| 1267 | * |
| 1268 | * The caller has already checked that "dataBuf" is non-NULL. |
| 1269 | */ |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1270 | static bool Check(const char* function_name, const void* embedded_buf, bool mod_okay) { |
| 1271 | const GuardedCopy* copy = FromEmbedded(embedded_buf); |
| 1272 | return copy->CheckHeader(function_name, mod_okay) && copy->CheckRedZones(function_name); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1273 | } |
| 1274 | |
| 1275 | private: |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1276 | GuardedCopy(const void* original_buf, size_t len, uLong adler) : |
| 1277 | magic_(kGuardMagic), adler_(adler), original_ptr_(original_buf), original_length_(len) { |
| 1278 | } |
| 1279 | |
Elliott Hughes | 32ae6e3 | 2011-09-27 10:46:50 -0700 | [diff] [blame] | 1280 | static uint8_t* DebugAlloc(size_t len) { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 1281 | void* result = mmap(nullptr, len, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1282 | if (result == MAP_FAILED) { |
| 1283 | PLOG(FATAL) << "GuardedCopy::create mmap(" << len << ") failed"; |
| 1284 | } |
| 1285 | return reinterpret_cast<uint8_t*>(result); |
| 1286 | } |
| 1287 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1288 | static void DebugFree(void* buf, size_t len) { |
| 1289 | if (munmap(buf, len) != 0) { |
| 1290 | PLOG(FATAL) << "munmap(" << buf << ", " << len << ") failed"; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1291 | } |
| 1292 | } |
| 1293 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1294 | static size_t LengthIncludingRedZones(size_t len) { |
| 1295 | return len + kRedZoneSize; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1296 | } |
| 1297 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1298 | // Get the GuardedCopy from the interior pointer. |
| 1299 | static GuardedCopy* FromEmbedded(void* embedded_buf) { |
| 1300 | return reinterpret_cast<GuardedCopy*>( |
| 1301 | reinterpret_cast<uint8_t*>(embedded_buf) - (kRedZoneSize / 2)); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1302 | } |
| 1303 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1304 | static const GuardedCopy* FromEmbedded(const void* embedded_buf) { |
| 1305 | return reinterpret_cast<const GuardedCopy*>( |
| 1306 | reinterpret_cast<const uint8_t*>(embedded_buf) - (kRedZoneSize / 2)); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1307 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1308 | |
| 1309 | static void AbortF(const char* jni_function_name, const char* fmt, ...) { |
| 1310 | va_list args; |
| 1311 | va_start(args, fmt); |
| 1312 | Runtime::Current()->GetJavaVM()->JniAbortV(jni_function_name, fmt, args); |
| 1313 | va_end(args); |
| 1314 | } |
| 1315 | |
| 1316 | bool CheckHeader(const char* function_name, bool mod_okay) const { |
| 1317 | static const uint32_t kMagicCmp = kGuardMagic; |
| 1318 | |
| 1319 | // Before we do anything with "pExtra", check the magic number. We |
| 1320 | // do the check with memcmp rather than "==" in case the pointer is |
| 1321 | // unaligned. If it points to completely bogus memory we're going |
| 1322 | // to crash, but there's no easy way around that. |
| 1323 | if (UNLIKELY(memcmp(&magic_, &kMagicCmp, 4) != 0)) { |
| 1324 | uint8_t buf[4]; |
| 1325 | memcpy(buf, &magic_, 4); |
| 1326 | AbortF(function_name, |
| 1327 | "guard magic does not match (found 0x%02x%02x%02x%02x) -- incorrect data pointer %p?", |
| 1328 | buf[3], buf[2], buf[1], buf[0], this); // Assumes little-endian. |
| 1329 | return false; |
| 1330 | } |
| 1331 | |
| 1332 | // If modification is not expected, verify checksum. Strictly speaking this is wrong: if we |
| 1333 | // told the client that we made a copy, there's no reason they can't alter the buffer. |
| 1334 | if (!mod_okay) { |
| 1335 | uLong computed_adler = |
| 1336 | adler32(adler32(0L, Z_NULL, 0), BufferWithinRedZones(), original_length_); |
| 1337 | if (computed_adler != adler_) { |
| 1338 | AbortF(function_name, "buffer modified (0x%08lx vs 0x%08lx) at address %p", |
| 1339 | computed_adler, adler_, this); |
| 1340 | return false; |
| 1341 | } |
| 1342 | } |
| 1343 | return true; |
| 1344 | } |
| 1345 | |
| 1346 | bool CheckRedZones(const char* function_name) const { |
| 1347 | // Check the begin red zone. |
| 1348 | const size_t kStartCanaryLength = (GuardedCopy::kRedZoneSize / 2) - sizeof(GuardedCopy); |
| 1349 | for (size_t i = 0, j = 0; i < kStartCanaryLength; ++i) { |
| 1350 | if (UNLIKELY(StartRedZone()[i] != kCanary[j])) { |
| 1351 | AbortF(function_name, "guard pattern before buffer disturbed at %p +%zd", this, i); |
| 1352 | return false; |
| 1353 | } |
| 1354 | if (kCanary[j] == '\0') { |
| 1355 | j = 0; |
| 1356 | } |
| 1357 | } |
| 1358 | |
| 1359 | // Check end region. |
| 1360 | for (size_t i = 0, j = 0; i < kEndCanaryLength; ++i) { |
| 1361 | if (UNLIKELY(EndRedZone()[i] != kCanary[j])) { |
| 1362 | size_t offset_from_buffer_start = |
| 1363 | &(EndRedZone()[i]) - &(StartRedZone()[kStartCanaryLength]); |
| 1364 | AbortF(function_name, "guard pattern after buffer disturbed at %p +%zd", this, |
| 1365 | offset_from_buffer_start); |
| 1366 | return false; |
| 1367 | } |
| 1368 | if (kCanary[j] == '\0') { |
| 1369 | j = 0; |
| 1370 | } |
| 1371 | } |
| 1372 | return true; |
| 1373 | } |
| 1374 | |
| 1375 | // Location that canary value will be written before the guarded region. |
| 1376 | const char* StartRedZone() const { |
| 1377 | const uint8_t* buf = reinterpret_cast<const uint8_t*>(this); |
| 1378 | return reinterpret_cast<const char*>(buf + sizeof(GuardedCopy)); |
| 1379 | } |
| 1380 | |
| 1381 | // Return the interior embedded buffer. |
| 1382 | const uint8_t* BufferWithinRedZones() const { |
| 1383 | const uint8_t* embedded_buf = reinterpret_cast<const uint8_t*>(this) + (kRedZoneSize / 2); |
| 1384 | return embedded_buf; |
| 1385 | } |
| 1386 | |
| 1387 | // Location that canary value will be written after the guarded region. |
| 1388 | const char* EndRedZone() const { |
| 1389 | const uint8_t* buf = reinterpret_cast<const uint8_t*>(this); |
| 1390 | size_t buf_len = LengthIncludingRedZones(original_length_); |
| 1391 | return reinterpret_cast<const char*>(buf + (buf_len - (kRedZoneSize / 2))); |
| 1392 | } |
| 1393 | |
| 1394 | static constexpr size_t kRedZoneSize = 512; |
| 1395 | static constexpr size_t kEndCanaryLength = kRedZoneSize / 2; |
| 1396 | |
| 1397 | // Value written before and after the guarded array. |
| 1398 | static const char* const kCanary; |
| 1399 | |
| 1400 | static constexpr uint32_t kGuardMagic = 0xffd5aa96; |
| 1401 | |
| 1402 | const uint32_t magic_; |
| 1403 | const uLong adler_; |
| 1404 | const void* const original_ptr_; |
| 1405 | const size_t original_length_; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1406 | }; |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1407 | const char* const GuardedCopy::kCanary = "JNI BUFFER RED ZONE"; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1408 | |
| 1409 | /* |
| 1410 | * =========================================================================== |
| 1411 | * JNI functions |
| 1412 | * =========================================================================== |
| 1413 | */ |
| 1414 | |
| 1415 | class CheckJNI { |
| 1416 | public: |
| 1417 | static jint GetVersion(JNIEnv* env) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1418 | ScopedObjectAccess soa(env); |
| 1419 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1420 | JniValueType args[1] = {{.E = env }}; |
| 1421 | if (sc.Check(soa, true, "E", args)) { |
| 1422 | JniValueType result; |
| 1423 | result.I = baseEnv(env)->GetVersion(env); |
| 1424 | if (sc.Check(soa, false, "I", &result)) { |
| 1425 | return result.I; |
| 1426 | } |
| 1427 | } |
| 1428 | return JNI_ERR; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1429 | } |
| 1430 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1431 | static jint GetJavaVM(JNIEnv *env, JavaVM **vm) { |
| 1432 | ScopedObjectAccess soa(env); |
| 1433 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1434 | JniValueType args[2] = {{.E = env }, {.p = vm}}; |
| 1435 | if (sc.Check(soa, true, "Ep", args)) { |
| 1436 | JniValueType result; |
| 1437 | result.i = baseEnv(env)->GetJavaVM(env, vm); |
| 1438 | if (sc.Check(soa, false, "i", &result)) { |
| 1439 | return result.i; |
| 1440 | } |
| 1441 | } |
| 1442 | return JNI_ERR; |
| 1443 | } |
| 1444 | |
| 1445 | static jint RegisterNatives(JNIEnv* env, jclass c, const JNINativeMethod* methods, jint nMethods) { |
| 1446 | ScopedObjectAccess soa(env); |
| 1447 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1448 | JniValueType args[4] = {{.E = env }, {.c = c}, {.p = methods}, {.I = nMethods}}; |
| 1449 | if (sc.Check(soa, true, "EcpI", args)) { |
| 1450 | JniValueType result; |
| 1451 | result.i = baseEnv(env)->RegisterNatives(env, c, methods, nMethods); |
| 1452 | if (sc.Check(soa, false, "i", &result)) { |
| 1453 | return result.i; |
| 1454 | } |
| 1455 | } |
| 1456 | return JNI_ERR; |
| 1457 | } |
| 1458 | |
| 1459 | static jint UnregisterNatives(JNIEnv* env, jclass c) { |
| 1460 | ScopedObjectAccess soa(env); |
| 1461 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1462 | JniValueType args[2] = {{.E = env }, {.c = c}}; |
| 1463 | if (sc.Check(soa, true, "Ec", args)) { |
| 1464 | JniValueType result; |
| 1465 | result.i = baseEnv(env)->UnregisterNatives(env, c); |
| 1466 | if (sc.Check(soa, false, "i", &result)) { |
| 1467 | return result.i; |
| 1468 | } |
| 1469 | } |
| 1470 | return JNI_ERR; |
| 1471 | } |
| 1472 | |
| 1473 | static jobjectRefType GetObjectRefType(JNIEnv* env, jobject obj) { |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1474 | // Note: we use "EL" here but "Ep" has been used in the past on the basis that we'd like to |
| 1475 | // know the object is invalid. The spec says that passing invalid objects or even ones that |
| 1476 | // are deleted isn't supported. |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1477 | ScopedObjectAccess soa(env); |
| 1478 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
Ian Rogers | c0542af | 2014-09-03 16:16:56 -0700 | [diff] [blame] | 1479 | JniValueType args[2] = {{.E = env }, {.L = obj}}; |
| 1480 | if (sc.Check(soa, true, "EL", args)) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1481 | JniValueType result; |
| 1482 | result.w = baseEnv(env)->GetObjectRefType(env, obj); |
| 1483 | if (sc.Check(soa, false, "w", &result)) { |
| 1484 | return result.w; |
| 1485 | } |
| 1486 | } |
| 1487 | return JNIInvalidRefType; |
| 1488 | } |
| 1489 | |
| 1490 | static jclass DefineClass(JNIEnv* env, const char* name, jobject loader, const jbyte* buf, |
| 1491 | jsize bufLen) { |
| 1492 | ScopedObjectAccess soa(env); |
| 1493 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1494 | JniValueType args[5] = {{.E = env}, {.u = name}, {.L = loader}, {.p = buf}, {.z = bufLen}}; |
| 1495 | if (sc.Check(soa, true, "EuLpz", args) && sc.CheckClassName(name)) { |
| 1496 | JniValueType result; |
| 1497 | result.c = baseEnv(env)->DefineClass(env, name, loader, buf, bufLen); |
| 1498 | if (sc.Check(soa, false, "c", &result)) { |
| 1499 | return result.c; |
| 1500 | } |
| 1501 | } |
| 1502 | return nullptr; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1503 | } |
| 1504 | |
| 1505 | static jclass FindClass(JNIEnv* env, const char* name) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1506 | ScopedObjectAccess soa(env); |
| 1507 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1508 | JniValueType args[2] = {{.E = env}, {.u = name}}; |
| 1509 | if (sc.Check(soa, true, "Eu", args) && sc.CheckClassName(name)) { |
| 1510 | JniValueType result; |
| 1511 | result.c = baseEnv(env)->FindClass(env, name); |
| 1512 | if (sc.Check(soa, false, "c", &result)) { |
| 1513 | return result.c; |
| 1514 | } |
| 1515 | } |
| 1516 | return nullptr; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1517 | } |
| 1518 | |
Elliott Hughes | e84278b | 2012-03-22 10:06:53 -0700 | [diff] [blame] | 1519 | static jclass GetSuperclass(JNIEnv* env, jclass c) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1520 | ScopedObjectAccess soa(env); |
| 1521 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1522 | JniValueType args[2] = {{.E = env}, {.c = c}}; |
| 1523 | if (sc.Check(soa, true, "Ec", args)) { |
| 1524 | JniValueType result; |
| 1525 | result.c = baseEnv(env)->GetSuperclass(env, c); |
| 1526 | if (sc.Check(soa, false, "c", &result)) { |
| 1527 | return result.c; |
| 1528 | } |
| 1529 | } |
| 1530 | return nullptr; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1531 | } |
| 1532 | |
Elliott Hughes | e84278b | 2012-03-22 10:06:53 -0700 | [diff] [blame] | 1533 | static jboolean IsAssignableFrom(JNIEnv* env, jclass c1, jclass c2) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1534 | ScopedObjectAccess soa(env); |
| 1535 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1536 | JniValueType args[3] = {{.E = env}, {.c = c1}, {.c = c2}}; |
| 1537 | if (sc.Check(soa, true, "Ecc", args)) { |
| 1538 | JniValueType result; |
| 1539 | result.b = baseEnv(env)->IsAssignableFrom(env, c1, c2); |
| 1540 | if (sc.Check(soa, false, "b", &result)) { |
| 1541 | return result.b; |
| 1542 | } |
| 1543 | } |
| 1544 | return JNI_FALSE; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1545 | } |
| 1546 | |
| 1547 | static jmethodID FromReflectedMethod(JNIEnv* env, jobject method) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1548 | ScopedObjectAccess soa(env); |
| 1549 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1550 | JniValueType args[2] = {{.E = env}, {.L = method}}; |
| 1551 | if (sc.Check(soa, true, "EL", args) && sc.CheckReflectedMethod(soa, method)) { |
| 1552 | JniValueType result; |
| 1553 | result.m = baseEnv(env)->FromReflectedMethod(env, method); |
| 1554 | if (sc.Check(soa, false, "m", &result)) { |
| 1555 | return result.m; |
| 1556 | } |
| 1557 | } |
| 1558 | return nullptr; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1559 | } |
| 1560 | |
| 1561 | static jfieldID FromReflectedField(JNIEnv* env, jobject field) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1562 | ScopedObjectAccess soa(env); |
| 1563 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1564 | JniValueType args[2] = {{.E = env}, {.L = field}}; |
| 1565 | if (sc.Check(soa, true, "EL", args) && sc.CheckReflectedField(soa, field)) { |
| 1566 | JniValueType result; |
| 1567 | result.f = baseEnv(env)->FromReflectedField(env, field); |
| 1568 | if (sc.Check(soa, false, "f", &result)) { |
| 1569 | return result.f; |
| 1570 | } |
| 1571 | } |
| 1572 | return nullptr; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1573 | } |
| 1574 | |
| 1575 | static jobject ToReflectedMethod(JNIEnv* env, jclass cls, jmethodID mid, jboolean isStatic) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1576 | ScopedObjectAccess soa(env); |
| 1577 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1578 | JniValueType args[4] = {{.E = env}, {.c = cls}, {.m = mid}, {.b = isStatic}}; |
| 1579 | if (sc.Check(soa, true, "Ecmb", args)) { |
| 1580 | JniValueType result; |
| 1581 | result.L = baseEnv(env)->ToReflectedMethod(env, cls, mid, isStatic); |
| 1582 | if (sc.Check(soa, false, "L", &result) && (result.L != nullptr)) { |
| 1583 | DCHECK(sc.CheckReflectedMethod(soa, result.L)); |
| 1584 | return result.L; |
| 1585 | } |
| 1586 | } |
| 1587 | return nullptr; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1588 | } |
| 1589 | |
| 1590 | static jobject ToReflectedField(JNIEnv* env, jclass cls, jfieldID fid, jboolean isStatic) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1591 | ScopedObjectAccess soa(env); |
| 1592 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1593 | JniValueType args[4] = {{.E = env}, {.c = cls}, {.f = fid}, {.b = isStatic}}; |
| 1594 | if (sc.Check(soa, true, "Ecfb", args)) { |
| 1595 | JniValueType result; |
| 1596 | result.L = baseEnv(env)->ToReflectedField(env, cls, fid, isStatic); |
| 1597 | if (sc.Check(soa, false, "L", &result) && (result.L != nullptr)) { |
| 1598 | DCHECK(sc.CheckReflectedField(soa, result.L)); |
| 1599 | return result.L; |
| 1600 | } |
| 1601 | } |
| 1602 | return nullptr; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1603 | } |
| 1604 | |
| 1605 | static jint Throw(JNIEnv* env, jthrowable obj) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1606 | ScopedObjectAccess soa(env); |
| 1607 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1608 | JniValueType args[2] = {{.E = env}, {.t = obj}}; |
| 1609 | if (sc.Check(soa, true, "Et", args) && sc.CheckThrowable(soa, obj)) { |
| 1610 | JniValueType result; |
| 1611 | result.i = baseEnv(env)->Throw(env, obj); |
| 1612 | if (sc.Check(soa, false, "i", &result)) { |
| 1613 | return result.i; |
| 1614 | } |
| 1615 | } |
| 1616 | return JNI_ERR; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1617 | } |
| 1618 | |
Elliott Hughes | e84278b | 2012-03-22 10:06:53 -0700 | [diff] [blame] | 1619 | static jint ThrowNew(JNIEnv* env, jclass c, const char* message) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1620 | ScopedObjectAccess soa(env); |
| 1621 | ScopedCheck sc(kFlag_NullableUtf, __FUNCTION__); |
| 1622 | JniValueType args[5] = {{.E = env}, {.c = c}, {.u = message}}; |
| 1623 | if (sc.Check(soa, true, "Ecu", args) && sc.CheckThrowableClass(soa, c)) { |
| 1624 | JniValueType result; |
| 1625 | result.i = baseEnv(env)->ThrowNew(env, c, message); |
| 1626 | if (sc.Check(soa, false, "i", &result)) { |
| 1627 | return result.i; |
| 1628 | } |
| 1629 | } |
| 1630 | return JNI_ERR; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1631 | } |
| 1632 | |
| 1633 | static jthrowable ExceptionOccurred(JNIEnv* env) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1634 | ScopedObjectAccess soa(env); |
| 1635 | ScopedCheck sc(kFlag_ExcepOkay, __FUNCTION__); |
| 1636 | JniValueType args[1] = {{.E = env}}; |
| 1637 | if (sc.Check(soa, true, "E", args)) { |
| 1638 | JniValueType result; |
| 1639 | result.t = baseEnv(env)->ExceptionOccurred(env); |
| 1640 | if (sc.Check(soa, false, "t", &result)) { |
| 1641 | return result.t; |
| 1642 | } |
| 1643 | } |
| 1644 | return nullptr; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1645 | } |
| 1646 | |
| 1647 | static void ExceptionDescribe(JNIEnv* env) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1648 | ScopedObjectAccess soa(env); |
| 1649 | ScopedCheck sc(kFlag_ExcepOkay, __FUNCTION__); |
| 1650 | JniValueType args[1] = {{.E = env}}; |
| 1651 | if (sc.Check(soa, true, "E", args)) { |
| 1652 | JniValueType result; |
| 1653 | baseEnv(env)->ExceptionDescribe(env); |
| 1654 | result.V = nullptr; |
| 1655 | sc.Check(soa, false, "V", &result); |
| 1656 | } |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1657 | } |
| 1658 | |
| 1659 | static void ExceptionClear(JNIEnv* env) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1660 | ScopedObjectAccess soa(env); |
| 1661 | ScopedCheck sc(kFlag_ExcepOkay, __FUNCTION__); |
| 1662 | JniValueType args[1] = {{.E = env}}; |
| 1663 | if (sc.Check(soa, true, "E", args)) { |
| 1664 | JniValueType result; |
| 1665 | baseEnv(env)->ExceptionClear(env); |
| 1666 | result.V = nullptr; |
| 1667 | sc.Check(soa, false, "V", &result); |
| 1668 | } |
| 1669 | } |
| 1670 | |
| 1671 | static jboolean ExceptionCheck(JNIEnv* env) { |
| 1672 | ScopedObjectAccess soa(env); |
| 1673 | ScopedCheck sc(kFlag_CritOkay | kFlag_ExcepOkay, __FUNCTION__); |
| 1674 | JniValueType args[1] = {{.E = env}}; |
| 1675 | if (sc.Check(soa, true, "E", args)) { |
| 1676 | JniValueType result; |
| 1677 | result.b = baseEnv(env)->ExceptionCheck(env); |
| 1678 | if (sc.Check(soa, false, "b", &result)) { |
| 1679 | return result.b; |
| 1680 | } |
| 1681 | } |
| 1682 | return JNI_FALSE; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1683 | } |
| 1684 | |
| 1685 | static void FatalError(JNIEnv* env, const char* msg) { |
Elliott Hughes | c4378df | 2013-06-14 17:05:13 -0700 | [diff] [blame] | 1686 | // The JNI specification doesn't say it's okay to call FatalError with a pending exception, |
| 1687 | // but you're about to abort anyway, and it's quite likely that you have a pending exception, |
| 1688 | // and it's not unimaginable that you don't know that you do. So we allow it. |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1689 | ScopedObjectAccess soa(env); |
| 1690 | ScopedCheck sc(kFlag_ExcepOkay | kFlag_NullableUtf, __FUNCTION__); |
| 1691 | JniValueType args[2] = {{.E = env}, {.u = msg}}; |
| 1692 | if (sc.Check(soa, true, "Eu", args)) { |
| 1693 | JniValueType result; |
| 1694 | baseEnv(env)->FatalError(env, msg); |
| 1695 | // Unreachable. |
| 1696 | result.V = nullptr; |
| 1697 | sc.Check(soa, false, "V", &result); |
| 1698 | } |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1699 | } |
| 1700 | |
| 1701 | static jint PushLocalFrame(JNIEnv* env, jint capacity) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1702 | ScopedObjectAccess soa(env); |
| 1703 | ScopedCheck sc(kFlag_ExcepOkay, __FUNCTION__); |
| 1704 | JniValueType args[2] = {{.E = env}, {.I = capacity}}; |
| 1705 | if (sc.Check(soa, true, "EI", args)) { |
| 1706 | JniValueType result; |
| 1707 | result.i = baseEnv(env)->PushLocalFrame(env, capacity); |
| 1708 | if (sc.Check(soa, false, "i", &result)) { |
| 1709 | return result.i; |
| 1710 | } |
| 1711 | } |
| 1712 | return JNI_ERR; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1713 | } |
| 1714 | |
| 1715 | static jobject PopLocalFrame(JNIEnv* env, jobject res) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1716 | ScopedObjectAccess soa(env); |
| 1717 | ScopedCheck sc(kFlag_ExcepOkay, __FUNCTION__); |
| 1718 | JniValueType args[2] = {{.E = env}, {.L = res}}; |
| 1719 | if (sc.Check(soa, true, "EL", args)) { |
| 1720 | JniValueType result; |
| 1721 | result.L = baseEnv(env)->PopLocalFrame(env, res); |
| 1722 | sc.Check(soa, false, "L", &result); |
| 1723 | return result.L; |
| 1724 | } |
| 1725 | return nullptr; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1726 | } |
| 1727 | |
| 1728 | static jobject NewGlobalRef(JNIEnv* env, jobject obj) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1729 | return NewRef(__FUNCTION__, env, obj, kGlobal); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1730 | } |
| 1731 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1732 | static jobject NewLocalRef(JNIEnv* env, jobject obj) { |
| 1733 | return NewRef(__FUNCTION__, env, obj, kLocal); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1734 | } |
| 1735 | |
| 1736 | static jweak NewWeakGlobalRef(JNIEnv* env, jobject obj) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1737 | return NewRef(__FUNCTION__, env, obj, kWeakGlobal); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1738 | } |
| 1739 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1740 | static void DeleteGlobalRef(JNIEnv* env, jobject obj) { |
| 1741 | DeleteRef(__FUNCTION__, env, obj, kGlobal); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 1742 | } |
| 1743 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1744 | static void DeleteWeakGlobalRef(JNIEnv* env, jweak obj) { |
| 1745 | DeleteRef(__FUNCTION__, env, obj, kWeakGlobal); |
| 1746 | } |
| 1747 | |
| 1748 | static void DeleteLocalRef(JNIEnv* env, jobject obj) { |
| 1749 | DeleteRef(__FUNCTION__, env, obj, kLocal); |
| 1750 | } |
| 1751 | |
| 1752 | static jint EnsureLocalCapacity(JNIEnv *env, jint capacity) { |
| 1753 | ScopedObjectAccess soa(env); |
| 1754 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1755 | JniValueType args[2] = {{.E = env}, {.I = capacity}}; |
| 1756 | if (sc.Check(soa, true, "EI", args)) { |
| 1757 | JniValueType result; |
| 1758 | result.i = baseEnv(env)->EnsureLocalCapacity(env, capacity); |
| 1759 | if (sc.Check(soa, false, "i", &result)) { |
| 1760 | return result.i; |
| 1761 | } |
| 1762 | } |
| 1763 | return JNI_ERR; |
| 1764 | } |
| 1765 | |
| 1766 | static jboolean IsSameObject(JNIEnv* env, jobject ref1, jobject ref2) { |
| 1767 | ScopedObjectAccess soa(env); |
| 1768 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1769 | JniValueType args[3] = {{.E = env}, {.L = ref1}, {.L = ref2}}; |
| 1770 | if (sc.Check(soa, true, "ELL", args)) { |
| 1771 | JniValueType result; |
| 1772 | result.b = baseEnv(env)->IsSameObject(env, ref1, ref2); |
| 1773 | if (sc.Check(soa, false, "b", &result)) { |
| 1774 | return result.b; |
| 1775 | } |
| 1776 | } |
| 1777 | return JNI_FALSE; |
| 1778 | } |
| 1779 | |
| 1780 | static jobject AllocObject(JNIEnv* env, jclass c) { |
| 1781 | ScopedObjectAccess soa(env); |
| 1782 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1783 | JniValueType args[2] = {{.E = env}, {.c = c}}; |
| 1784 | if (sc.Check(soa, true, "Ec", args) && sc.CheckInstantiableNonArray(soa, c)) { |
| 1785 | JniValueType result; |
| 1786 | result.L = baseEnv(env)->AllocObject(env, c); |
| 1787 | if (sc.Check(soa, false, "L", &result)) { |
| 1788 | return result.L; |
| 1789 | } |
| 1790 | } |
| 1791 | return nullptr; |
| 1792 | } |
| 1793 | |
| 1794 | static jobject NewObjectV(JNIEnv* env, jclass c, jmethodID mid, va_list vargs) { |
| 1795 | ScopedObjectAccess soa(env); |
| 1796 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1797 | JniValueType args[3] = {{.E = env}, {.c = c}, {.m = mid}}; |
| 1798 | if (sc.Check(soa, true, "Ecm.", args) && sc.CheckInstantiableNonArray(soa, c) && |
| 1799 | sc.CheckConstructor(soa, mid)) { |
| 1800 | JniValueType result; |
| 1801 | result.L = baseEnv(env)->NewObjectV(env, c, mid, vargs); |
| 1802 | if (sc.Check(soa, false, "L", &result)) { |
| 1803 | return result.L; |
| 1804 | } |
| 1805 | } |
| 1806 | return nullptr; |
| 1807 | } |
| 1808 | |
| 1809 | static jobject NewObject(JNIEnv* env, jclass c, jmethodID mid, ...) { |
| 1810 | va_list args; |
| 1811 | va_start(args, mid); |
| 1812 | jobject result = NewObjectV(env, c, mid, args); |
| 1813 | va_end(args); |
| 1814 | return result; |
| 1815 | } |
| 1816 | |
| 1817 | static jobject NewObjectA(JNIEnv* env, jclass c, jmethodID mid, jvalue* vargs) { |
| 1818 | ScopedObjectAccess soa(env); |
| 1819 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1820 | JniValueType args[3] = {{.E = env}, {.c = c}, {.m = mid}}; |
| 1821 | if (sc.Check(soa, true, "Ecm.", args) && sc.CheckInstantiableNonArray(soa, c) && |
| 1822 | sc.CheckConstructor(soa, mid)) { |
| 1823 | JniValueType result; |
| 1824 | result.L = baseEnv(env)->NewObjectA(env, c, mid, vargs); |
| 1825 | if (sc.Check(soa, false, "L", &result)) { |
| 1826 | return result.L; |
| 1827 | } |
| 1828 | } |
| 1829 | return nullptr; |
| 1830 | } |
| 1831 | |
| 1832 | static jclass GetObjectClass(JNIEnv* env, jobject obj) { |
| 1833 | ScopedObjectAccess soa(env); |
| 1834 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1835 | JniValueType args[2] = {{.E = env}, {.L = obj}}; |
| 1836 | if (sc.Check(soa, true, "EL", args)) { |
| 1837 | JniValueType result; |
| 1838 | result.c = baseEnv(env)->GetObjectClass(env, obj); |
| 1839 | if (sc.Check(soa, false, "c", &result)) { |
| 1840 | return result.c; |
| 1841 | } |
| 1842 | } |
| 1843 | return nullptr; |
| 1844 | } |
| 1845 | |
| 1846 | static jboolean IsInstanceOf(JNIEnv* env, jobject obj, jclass c) { |
| 1847 | ScopedObjectAccess soa(env); |
| 1848 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 1849 | JniValueType args[3] = {{.E = env}, {.L = obj}, {.c = c}}; |
| 1850 | if (sc.Check(soa, true, "ELc", args)) { |
| 1851 | JniValueType result; |
| 1852 | result.b = baseEnv(env)->IsInstanceOf(env, obj, c); |
| 1853 | if (sc.Check(soa, false, "b", &result)) { |
| 1854 | return result.b; |
| 1855 | } |
| 1856 | } |
| 1857 | return JNI_FALSE; |
| 1858 | } |
| 1859 | |
| 1860 | static jmethodID GetMethodID(JNIEnv* env, jclass c, const char* name, const char* sig) { |
| 1861 | return GetMethodIDInternal(__FUNCTION__, env, c, name, sig, false); |
| 1862 | } |
| 1863 | |
| 1864 | static jmethodID GetStaticMethodID(JNIEnv* env, jclass c, const char* name, const char* sig) { |
| 1865 | return GetMethodIDInternal(__FUNCTION__, env, c, name, sig, true); |
| 1866 | } |
| 1867 | |
| 1868 | static jfieldID GetFieldID(JNIEnv* env, jclass c, const char* name, const char* sig) { |
| 1869 | return GetFieldIDInternal(__FUNCTION__, env, c, name, sig, false); |
| 1870 | } |
| 1871 | |
| 1872 | static jfieldID GetStaticFieldID(JNIEnv* env, jclass c, const char* name, const char* sig) { |
| 1873 | return GetFieldIDInternal(__FUNCTION__, env, c, name, sig, true); |
| 1874 | } |
| 1875 | |
| 1876 | #define FIELD_ACCESSORS(jtype, name, ptype, shorty) \ |
| 1877 | static jtype GetStatic##name##Field(JNIEnv* env, jclass c, jfieldID fid) { \ |
| 1878 | return GetField(__FUNCTION__, env, c, fid, true, ptype).shorty; \ |
| 1879 | } \ |
| 1880 | \ |
| 1881 | static jtype Get##name##Field(JNIEnv* env, jobject obj, jfieldID fid) { \ |
| 1882 | return GetField(__FUNCTION__, env, obj, fid, false, ptype).shorty; \ |
| 1883 | } \ |
| 1884 | \ |
| 1885 | static void SetStatic##name##Field(JNIEnv* env, jclass c, jfieldID fid, jtype v) { \ |
| 1886 | JniValueType value; \ |
| 1887 | value.shorty = v; \ |
| 1888 | SetField(__FUNCTION__, env, c, fid, true, ptype, value); \ |
| 1889 | } \ |
| 1890 | \ |
| 1891 | static void Set##name##Field(JNIEnv* env, jobject obj, jfieldID fid, jtype v) { \ |
| 1892 | JniValueType value; \ |
| 1893 | value.shorty = v; \ |
| 1894 | SetField(__FUNCTION__, env, obj, fid, false, ptype, value); \ |
| 1895 | } |
| 1896 | |
| 1897 | FIELD_ACCESSORS(jobject, Object, Primitive::kPrimNot, L) |
| 1898 | FIELD_ACCESSORS(jboolean, Boolean, Primitive::kPrimBoolean, Z) |
| 1899 | FIELD_ACCESSORS(jbyte, Byte, Primitive::kPrimByte, B) |
| 1900 | FIELD_ACCESSORS(jchar, Char, Primitive::kPrimChar, C) |
| 1901 | FIELD_ACCESSORS(jshort, Short, Primitive::kPrimShort, S) |
| 1902 | FIELD_ACCESSORS(jint, Int, Primitive::kPrimInt, I) |
| 1903 | FIELD_ACCESSORS(jlong, Long, Primitive::kPrimLong, J) |
| 1904 | FIELD_ACCESSORS(jfloat, Float, Primitive::kPrimFloat, F) |
| 1905 | FIELD_ACCESSORS(jdouble, Double, Primitive::kPrimDouble, D) |
| 1906 | #undef FIELD_ACCESSORS |
| 1907 | |
| 1908 | static void CallVoidMethodA(JNIEnv* env, jobject obj, jmethodID mid, jvalue* vargs) { |
| 1909 | CallMethodA(__FUNCTION__, env, obj, nullptr, mid, vargs, Primitive::kPrimVoid, kVirtual); |
| 1910 | } |
| 1911 | |
| 1912 | static void CallNonvirtualVoidMethodA(JNIEnv* env, jobject obj, jclass c, jmethodID mid, |
| 1913 | jvalue* vargs) { |
| 1914 | CallMethodA(__FUNCTION__, env, obj, c, mid, vargs, Primitive::kPrimVoid, kDirect); |
| 1915 | } |
| 1916 | |
| 1917 | static void CallStaticVoidMethodA(JNIEnv* env, jclass c, jmethodID mid, jvalue* vargs) { |
Marcus Oakland | 51be0a7 | 2014-09-24 15:23:06 +0100 | [diff] [blame] | 1918 | CallMethodA(__FUNCTION__, env, nullptr, c, mid, vargs, Primitive::kPrimVoid, kStatic); |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 1919 | } |
| 1920 | |
| 1921 | static void CallVoidMethodV(JNIEnv* env, jobject obj, jmethodID mid, va_list vargs) { |
| 1922 | CallMethodV(__FUNCTION__, env, obj, nullptr, mid, vargs, Primitive::kPrimVoid, kVirtual); |
| 1923 | } |
| 1924 | |
| 1925 | static void CallNonvirtualVoidMethodV(JNIEnv* env, jobject obj, jclass c, jmethodID mid, |
| 1926 | va_list vargs) { |
| 1927 | CallMethodV(__FUNCTION__, env, obj, c, mid, vargs, Primitive::kPrimVoid, kDirect); |
| 1928 | } |
| 1929 | |
| 1930 | static void CallStaticVoidMethodV(JNIEnv* env, jclass c, jmethodID mid, va_list vargs) { |
| 1931 | CallMethodV(__FUNCTION__, env, nullptr, c, mid, vargs, Primitive::kPrimVoid, kStatic); |
| 1932 | } |
| 1933 | |
| 1934 | static void CallVoidMethod(JNIEnv* env, jobject obj, jmethodID mid, ...) { |
| 1935 | va_list vargs; |
| 1936 | va_start(vargs, mid); |
| 1937 | CallMethodV(__FUNCTION__, env, obj, nullptr, mid, vargs, Primitive::kPrimVoid, kVirtual); |
| 1938 | va_end(vargs); |
| 1939 | } |
| 1940 | |
| 1941 | static void CallNonvirtualVoidMethod(JNIEnv* env, jobject obj, jclass c, jmethodID mid, ...) { |
| 1942 | va_list vargs; |
| 1943 | va_start(vargs, mid); |
| 1944 | CallMethodV(__FUNCTION__, env, obj, c, mid, vargs, Primitive::kPrimVoid, kDirect); |
| 1945 | va_end(vargs); |
| 1946 | } |
| 1947 | |
| 1948 | static void CallStaticVoidMethod(JNIEnv* env, jclass c, jmethodID mid, ...) { |
| 1949 | va_list vargs; |
| 1950 | va_start(vargs, mid); |
| 1951 | CallMethodV(__FUNCTION__, env, nullptr, c, mid, vargs, Primitive::kPrimVoid, kStatic); |
| 1952 | va_end(vargs); |
| 1953 | } |
| 1954 | |
| 1955 | #define CALL(rtype, name, ptype, shorty) \ |
| 1956 | static rtype Call##name##MethodA(JNIEnv* env, jobject obj, jmethodID mid, jvalue* vargs) { \ |
| 1957 | return CallMethodA(__FUNCTION__, env, obj, nullptr, mid, vargs, ptype, kVirtual).shorty; \ |
| 1958 | } \ |
| 1959 | \ |
| 1960 | static rtype CallNonvirtual##name##MethodA(JNIEnv* env, jobject obj, jclass c, jmethodID mid, \ |
| 1961 | jvalue* vargs) { \ |
| 1962 | return CallMethodA(__FUNCTION__, env, obj, c, mid, vargs, ptype, kDirect).shorty; \ |
| 1963 | } \ |
| 1964 | \ |
| 1965 | static rtype CallStatic##name##MethodA(JNIEnv* env, jclass c, jmethodID mid, jvalue* vargs) { \ |
| 1966 | return CallMethodA(__FUNCTION__, env, nullptr, c, mid, vargs, ptype, kStatic).shorty; \ |
| 1967 | } \ |
| 1968 | \ |
| 1969 | static rtype Call##name##MethodV(JNIEnv* env, jobject obj, jmethodID mid, va_list vargs) { \ |
| 1970 | return CallMethodV(__FUNCTION__, env, obj, nullptr, mid, vargs, ptype, kVirtual).shorty; \ |
| 1971 | } \ |
| 1972 | \ |
| 1973 | static rtype CallNonvirtual##name##MethodV(JNIEnv* env, jobject obj, jclass c, jmethodID mid, \ |
| 1974 | va_list vargs) { \ |
| 1975 | return CallMethodV(__FUNCTION__, env, obj, c, mid, vargs, ptype, kDirect).shorty; \ |
| 1976 | } \ |
| 1977 | \ |
| 1978 | static rtype CallStatic##name##MethodV(JNIEnv* env, jclass c, jmethodID mid, va_list vargs) { \ |
| 1979 | return CallMethodV(__FUNCTION__, env, nullptr, c, mid, vargs, ptype, kStatic).shorty; \ |
| 1980 | } \ |
| 1981 | \ |
| 1982 | static rtype Call##name##Method(JNIEnv* env, jobject obj, jmethodID mid, ...) { \ |
| 1983 | va_list vargs; \ |
| 1984 | va_start(vargs, mid); \ |
| 1985 | rtype result = \ |
| 1986 | CallMethodV(__FUNCTION__, env, obj, nullptr, mid, vargs, ptype, kVirtual).shorty; \ |
| 1987 | va_end(vargs); \ |
| 1988 | return result; \ |
| 1989 | } \ |
| 1990 | \ |
| 1991 | static rtype CallNonvirtual##name##Method(JNIEnv* env, jobject obj, jclass c, jmethodID mid, \ |
| 1992 | ...) { \ |
| 1993 | va_list vargs; \ |
| 1994 | va_start(vargs, mid); \ |
| 1995 | rtype result = \ |
| 1996 | CallMethodV(__FUNCTION__, env, obj, c, mid, vargs, ptype, kDirect).shorty; \ |
| 1997 | va_end(vargs); \ |
| 1998 | return result; \ |
| 1999 | } \ |
| 2000 | \ |
| 2001 | static rtype CallStatic##name##Method(JNIEnv* env, jclass c, jmethodID mid, ...) { \ |
| 2002 | va_list vargs; \ |
| 2003 | va_start(vargs, mid); \ |
| 2004 | rtype result = \ |
| 2005 | CallMethodV(__FUNCTION__, env, nullptr, c, mid, vargs, ptype, kStatic).shorty; \ |
| 2006 | va_end(vargs); \ |
| 2007 | return result; \ |
| 2008 | } |
| 2009 | |
| 2010 | CALL(jobject, Object, Primitive::kPrimNot, L) |
| 2011 | CALL(jboolean, Boolean, Primitive::kPrimBoolean, Z) |
| 2012 | CALL(jbyte, Byte, Primitive::kPrimByte, B) |
| 2013 | CALL(jchar, Char, Primitive::kPrimChar, C) |
| 2014 | CALL(jshort, Short, Primitive::kPrimShort, S) |
| 2015 | CALL(jint, Int, Primitive::kPrimInt, I) |
| 2016 | CALL(jlong, Long, Primitive::kPrimLong, J) |
| 2017 | CALL(jfloat, Float, Primitive::kPrimFloat, F) |
| 2018 | CALL(jdouble, Double, Primitive::kPrimDouble, D) |
| 2019 | #undef CALL |
| 2020 | |
| 2021 | static jstring NewString(JNIEnv* env, const jchar* unicode_chars, jsize len) { |
| 2022 | ScopedObjectAccess soa(env); |
| 2023 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 2024 | JniValueType args[3] = {{.E = env}, {.p = unicode_chars}, {.z = len}}; |
| 2025 | if (sc.Check(soa, true, "Epz", args)) { |
| 2026 | JniValueType result; |
| 2027 | result.s = baseEnv(env)->NewString(env, unicode_chars, len); |
| 2028 | if (sc.Check(soa, false, "s", &result)) { |
| 2029 | return result.s; |
| 2030 | } |
| 2031 | } |
| 2032 | return nullptr; |
| 2033 | } |
| 2034 | |
| 2035 | static jstring NewStringUTF(JNIEnv* env, const char* chars) { |
| 2036 | ScopedObjectAccess soa(env); |
| 2037 | ScopedCheck sc(kFlag_NullableUtf, __FUNCTION__); |
| 2038 | JniValueType args[2] = {{.E = env}, {.u = chars}}; |
| 2039 | if (sc.Check(soa, true, "Eu", args)) { |
| 2040 | JniValueType result; |
| 2041 | // TODO: stale? show pointer and truncate string. |
| 2042 | result.s = baseEnv(env)->NewStringUTF(env, chars); |
| 2043 | if (sc.Check(soa, false, "s", &result)) { |
| 2044 | return result.s; |
| 2045 | } |
| 2046 | } |
| 2047 | return nullptr; |
| 2048 | } |
| 2049 | |
| 2050 | static jsize GetStringLength(JNIEnv* env, jstring string) { |
| 2051 | ScopedObjectAccess soa(env); |
| 2052 | ScopedCheck sc(kFlag_CritOkay, __FUNCTION__); |
| 2053 | JniValueType args[2] = {{.E = env}, {.s = string}}; |
| 2054 | if (sc.Check(soa, true, "Es", args)) { |
| 2055 | JniValueType result; |
| 2056 | result.z = baseEnv(env)->GetStringLength(env, string); |
| 2057 | if (sc.Check(soa, false, "z", &result)) { |
| 2058 | return result.z; |
| 2059 | } |
| 2060 | } |
| 2061 | return JNI_ERR; |
| 2062 | } |
| 2063 | |
| 2064 | static jsize GetStringUTFLength(JNIEnv* env, jstring string) { |
| 2065 | ScopedObjectAccess soa(env); |
| 2066 | ScopedCheck sc(kFlag_CritOkay, __FUNCTION__); |
| 2067 | JniValueType args[2] = {{.E = env}, {.s = string}}; |
| 2068 | if (sc.Check(soa, true, "Es", args)) { |
| 2069 | JniValueType result; |
| 2070 | result.z = baseEnv(env)->GetStringUTFLength(env, string); |
| 2071 | if (sc.Check(soa, false, "z", &result)) { |
| 2072 | return result.z; |
| 2073 | } |
| 2074 | } |
| 2075 | return JNI_ERR; |
| 2076 | } |
| 2077 | |
| 2078 | static const jchar* GetStringChars(JNIEnv* env, jstring string, jboolean* is_copy) { |
| 2079 | return reinterpret_cast<const jchar*>(GetStringCharsInternal(__FUNCTION__, env, string, |
| 2080 | is_copy, false, false)); |
| 2081 | } |
| 2082 | |
| 2083 | static const char* GetStringUTFChars(JNIEnv* env, jstring string, jboolean* is_copy) { |
| 2084 | return reinterpret_cast<const char*>(GetStringCharsInternal(__FUNCTION__, env, string, |
| 2085 | is_copy, true, false)); |
| 2086 | } |
| 2087 | |
| 2088 | static const jchar* GetStringCritical(JNIEnv* env, jstring string, jboolean* is_copy) { |
| 2089 | return reinterpret_cast<const jchar*>(GetStringCharsInternal(__FUNCTION__, env, string, |
| 2090 | is_copy, false, true)); |
| 2091 | } |
| 2092 | |
| 2093 | static void ReleaseStringChars(JNIEnv* env, jstring string, const jchar* chars) { |
| 2094 | ReleaseStringCharsInternal(__FUNCTION__, env, string, chars, false, false); |
| 2095 | } |
| 2096 | |
| 2097 | static void ReleaseStringUTFChars(JNIEnv* env, jstring string, const char* utf) { |
| 2098 | ReleaseStringCharsInternal(__FUNCTION__, env, string, utf, true, false); |
| 2099 | } |
| 2100 | |
| 2101 | static void ReleaseStringCritical(JNIEnv* env, jstring string, const jchar* chars) { |
| 2102 | ReleaseStringCharsInternal(__FUNCTION__, env, string, chars, false, true); |
| 2103 | } |
| 2104 | |
| 2105 | static void GetStringRegion(JNIEnv* env, jstring string, jsize start, jsize len, jchar* buf) { |
| 2106 | ScopedObjectAccess soa(env); |
| 2107 | ScopedCheck sc(kFlag_CritOkay, __FUNCTION__); |
| 2108 | JniValueType args[5] = {{.E = env}, {.s = string}, {.z = start}, {.z = len}, {.p = buf}}; |
| 2109 | // Note: the start and len arguments are checked as 'I' rather than 'z' as invalid indices |
| 2110 | // result in ArrayIndexOutOfBoundsExceptions in the base implementation. |
| 2111 | if (sc.Check(soa, true, "EsIIp", args)) { |
| 2112 | baseEnv(env)->GetStringRegion(env, string, start, len, buf); |
| 2113 | JniValueType result; |
| 2114 | result.V = nullptr; |
| 2115 | sc.Check(soa, false, "V", &result); |
| 2116 | } |
| 2117 | } |
| 2118 | |
| 2119 | static void GetStringUTFRegion(JNIEnv* env, jstring string, jsize start, jsize len, char* buf) { |
| 2120 | ScopedObjectAccess soa(env); |
| 2121 | ScopedCheck sc(kFlag_CritOkay, __FUNCTION__); |
| 2122 | JniValueType args[5] = {{.E = env}, {.s = string}, {.z = start}, {.z = len}, {.p = buf}}; |
| 2123 | // Note: the start and len arguments are checked as 'I' rather than 'z' as invalid indices |
| 2124 | // result in ArrayIndexOutOfBoundsExceptions in the base implementation. |
| 2125 | if (sc.Check(soa, true, "EsIIp", args)) { |
| 2126 | baseEnv(env)->GetStringUTFRegion(env, string, start, len, buf); |
| 2127 | JniValueType result; |
| 2128 | result.V = nullptr; |
| 2129 | sc.Check(soa, false, "V", &result); |
| 2130 | } |
| 2131 | } |
| 2132 | |
| 2133 | static jsize GetArrayLength(JNIEnv* env, jarray array) { |
| 2134 | ScopedObjectAccess soa(env); |
| 2135 | ScopedCheck sc(kFlag_CritOkay, __FUNCTION__); |
| 2136 | JniValueType args[2] = {{.E = env}, {.a = array}}; |
| 2137 | if (sc.Check(soa, true, "Ea", args)) { |
| 2138 | JniValueType result; |
| 2139 | result.z = baseEnv(env)->GetArrayLength(env, array); |
| 2140 | if (sc.Check(soa, false, "z", &result)) { |
| 2141 | return result.z; |
| 2142 | } |
| 2143 | } |
| 2144 | return JNI_ERR; |
| 2145 | } |
| 2146 | |
| 2147 | static jobjectArray NewObjectArray(JNIEnv* env, jsize length, jclass element_class, |
| 2148 | jobject initial_element) { |
| 2149 | ScopedObjectAccess soa(env); |
| 2150 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 2151 | JniValueType args[4] = |
| 2152 | {{.E = env}, {.z = length}, {.c = element_class}, {.L = initial_element}}; |
| 2153 | if (sc.Check(soa, true, "EzcL", args)) { |
| 2154 | JniValueType result; |
| 2155 | // Note: assignability tests of initial_element are done in the base implementation. |
| 2156 | result.a = baseEnv(env)->NewObjectArray(env, length, element_class, initial_element); |
| 2157 | if (sc.Check(soa, false, "a", &result)) { |
| 2158 | return down_cast<jobjectArray>(result.a); |
| 2159 | } |
| 2160 | } |
| 2161 | return nullptr; |
| 2162 | } |
| 2163 | |
| 2164 | static jobject GetObjectArrayElement(JNIEnv* env, jobjectArray array, jsize index) { |
| 2165 | ScopedObjectAccess soa(env); |
| 2166 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 2167 | JniValueType args[3] = {{.E = env}, {.a = array}, {.z = index}}; |
| 2168 | if (sc.Check(soa, true, "Eaz", args)) { |
| 2169 | JniValueType result; |
| 2170 | result.L = baseEnv(env)->GetObjectArrayElement(env, array, index); |
| 2171 | if (sc.Check(soa, false, "L", &result)) { |
| 2172 | return result.L; |
| 2173 | } |
| 2174 | } |
| 2175 | return nullptr; |
| 2176 | } |
| 2177 | |
| 2178 | static void SetObjectArrayElement(JNIEnv* env, jobjectArray array, jsize index, jobject value) { |
| 2179 | ScopedObjectAccess soa(env); |
| 2180 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 2181 | JniValueType args[4] = {{.E = env}, {.a = array}, {.z = index}, {.L = value}}; |
| 2182 | // Note: the index arguments is checked as 'I' rather than 'z' as invalid indices result in |
| 2183 | // ArrayIndexOutOfBoundsExceptions in the base implementation. Similarly invalid stores result |
| 2184 | // in ArrayStoreExceptions. |
| 2185 | if (sc.Check(soa, true, "EaIL", args)) { |
| 2186 | baseEnv(env)->SetObjectArrayElement(env, array, index, value); |
| 2187 | JniValueType result; |
| 2188 | result.V = nullptr; |
| 2189 | sc.Check(soa, false, "V", &result); |
| 2190 | } |
| 2191 | } |
| 2192 | |
| 2193 | static jbooleanArray NewBooleanArray(JNIEnv* env, jsize length) { |
| 2194 | return down_cast<jbooleanArray>(NewPrimitiveArray(__FUNCTION__, env, length, |
| 2195 | Primitive::kPrimBoolean)); |
| 2196 | } |
| 2197 | |
| 2198 | static jbyteArray NewByteArray(JNIEnv* env, jsize length) { |
| 2199 | return down_cast<jbyteArray>(NewPrimitiveArray(__FUNCTION__, env, length, |
| 2200 | Primitive::kPrimByte)); |
| 2201 | } |
| 2202 | |
| 2203 | static jcharArray NewCharArray(JNIEnv* env, jsize length) { |
| 2204 | return down_cast<jcharArray>(NewPrimitiveArray(__FUNCTION__, env, length, |
| 2205 | Primitive::kPrimChar)); |
| 2206 | } |
| 2207 | |
| 2208 | static jshortArray NewShortArray(JNIEnv* env, jsize length) { |
| 2209 | return down_cast<jshortArray>(NewPrimitiveArray(__FUNCTION__, env, length, |
| 2210 | Primitive::kPrimShort)); |
| 2211 | } |
| 2212 | |
| 2213 | static jintArray NewIntArray(JNIEnv* env, jsize length) { |
| 2214 | return down_cast<jintArray>(NewPrimitiveArray(__FUNCTION__, env, length, Primitive::kPrimInt)); |
| 2215 | } |
| 2216 | |
| 2217 | static jlongArray NewLongArray(JNIEnv* env, jsize length) { |
| 2218 | return down_cast<jlongArray>(NewPrimitiveArray(__FUNCTION__, env, length, |
| 2219 | Primitive::kPrimLong)); |
| 2220 | } |
| 2221 | |
| 2222 | static jfloatArray NewFloatArray(JNIEnv* env, jsize length) { |
| 2223 | return down_cast<jfloatArray>(NewPrimitiveArray(__FUNCTION__, env, length, |
| 2224 | Primitive::kPrimFloat)); |
| 2225 | } |
| 2226 | |
| 2227 | static jdoubleArray NewDoubleArray(JNIEnv* env, jsize length) { |
| 2228 | return down_cast<jdoubleArray>(NewPrimitiveArray(__FUNCTION__, env, length, |
| 2229 | Primitive::kPrimDouble)); |
| 2230 | } |
| 2231 | |
| 2232 | #define PRIMITIVE_ARRAY_FUNCTIONS(ctype, name, ptype) \ |
| 2233 | static ctype* Get##name##ArrayElements(JNIEnv* env, ctype##Array array, jboolean* is_copy) { \ |
| 2234 | return reinterpret_cast<ctype*>( \ |
| 2235 | GetPrimitiveArrayElements(__FUNCTION__, ptype, env, array, is_copy)); \ |
| 2236 | } \ |
| 2237 | \ |
| 2238 | static void Release##name##ArrayElements(JNIEnv* env, ctype##Array array, ctype* elems, \ |
| 2239 | jint mode) { \ |
| 2240 | ReleasePrimitiveArrayElements(__FUNCTION__, ptype, env, array, elems, mode); \ |
| 2241 | } \ |
| 2242 | \ |
| 2243 | static void Get##name##ArrayRegion(JNIEnv* env, ctype##Array array, jsize start, jsize len, \ |
| 2244 | ctype* buf) { \ |
| 2245 | GetPrimitiveArrayRegion(__FUNCTION__, ptype, env, array, start, len, buf); \ |
| 2246 | } \ |
| 2247 | \ |
| 2248 | static void Set##name##ArrayRegion(JNIEnv* env, ctype##Array array, jsize start, jsize len, \ |
| 2249 | const ctype* buf) { \ |
| 2250 | SetPrimitiveArrayRegion(__FUNCTION__, ptype, env, array, start, len, buf); \ |
| 2251 | } |
| 2252 | |
| 2253 | PRIMITIVE_ARRAY_FUNCTIONS(jboolean, Boolean, Primitive::kPrimBoolean) |
| 2254 | PRIMITIVE_ARRAY_FUNCTIONS(jbyte, Byte, Primitive::kPrimByte) |
| 2255 | PRIMITIVE_ARRAY_FUNCTIONS(jchar, Char, Primitive::kPrimChar) |
| 2256 | PRIMITIVE_ARRAY_FUNCTIONS(jshort, Short, Primitive::kPrimShort) |
| 2257 | PRIMITIVE_ARRAY_FUNCTIONS(jint, Int, Primitive::kPrimInt) |
| 2258 | PRIMITIVE_ARRAY_FUNCTIONS(jlong, Long, Primitive::kPrimLong) |
| 2259 | PRIMITIVE_ARRAY_FUNCTIONS(jfloat, Float, Primitive::kPrimFloat) |
| 2260 | PRIMITIVE_ARRAY_FUNCTIONS(jdouble, Double, Primitive::kPrimDouble) |
| 2261 | #undef PRIMITIVE_ARRAY_FUNCTIONS |
| 2262 | |
| 2263 | static jint MonitorEnter(JNIEnv* env, jobject obj) { |
| 2264 | ScopedObjectAccess soa(env); |
| 2265 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 2266 | JniValueType args[2] = {{.E = env}, {.L = obj}}; |
| 2267 | if (sc.Check(soa, true, "EL", args)) { |
| 2268 | JniValueType result; |
| 2269 | result.i = baseEnv(env)->MonitorEnter(env, obj); |
| 2270 | if (sc.Check(soa, false, "i", &result)) { |
| 2271 | return result.i; |
| 2272 | } |
| 2273 | } |
| 2274 | return JNI_ERR; |
| 2275 | } |
| 2276 | |
| 2277 | static jint MonitorExit(JNIEnv* env, jobject obj) { |
| 2278 | ScopedObjectAccess soa(env); |
| 2279 | ScopedCheck sc(kFlag_ExcepOkay, __FUNCTION__); |
| 2280 | JniValueType args[2] = {{.E = env}, {.L = obj}}; |
| 2281 | if (sc.Check(soa, true, "EL", args)) { |
| 2282 | JniValueType result; |
| 2283 | result.i = baseEnv(env)->MonitorExit(env, obj); |
| 2284 | if (sc.Check(soa, false, "i", &result)) { |
| 2285 | return result.i; |
| 2286 | } |
| 2287 | } |
| 2288 | return JNI_ERR; |
| 2289 | } |
| 2290 | |
| 2291 | static void* GetPrimitiveArrayCritical(JNIEnv* env, jarray array, jboolean* is_copy) { |
| 2292 | ScopedObjectAccess soa(env); |
| 2293 | ScopedCheck sc(kFlag_CritGet, __FUNCTION__); |
| 2294 | JniValueType args[3] = {{.E = env}, {.a = array}, {.p = is_copy}}; |
| 2295 | if (sc.Check(soa, true, "Eap", args)) { |
| 2296 | JniValueType result; |
| 2297 | result.p = baseEnv(env)->GetPrimitiveArrayCritical(env, array, is_copy); |
| 2298 | if (result.p != nullptr && soa.ForceCopy()) { |
| 2299 | result.p = GuardedCopy::CreateGuardedPACopy(env, array, is_copy); |
| 2300 | } |
| 2301 | if (sc.Check(soa, false, "p", &result)) { |
| 2302 | return const_cast<void*>(result.p); |
| 2303 | } |
| 2304 | } |
| 2305 | return nullptr; |
| 2306 | } |
| 2307 | |
| 2308 | static void ReleasePrimitiveArrayCritical(JNIEnv* env, jarray array, void* carray, jint mode) { |
| 2309 | ScopedObjectAccess soa(env); |
| 2310 | ScopedCheck sc(kFlag_CritRelease | kFlag_ExcepOkay, __FUNCTION__); |
| 2311 | sc.CheckNonNull(carray); |
| 2312 | JniValueType args[4] = {{.E = env}, {.a = array}, {.p = carray}, {.r = mode}}; |
| 2313 | if (sc.Check(soa, true, "Eapr", args)) { |
| 2314 | if (soa.ForceCopy()) { |
| 2315 | GuardedCopy::ReleaseGuardedPACopy(__FUNCTION__, env, array, carray, mode); |
| 2316 | } |
| 2317 | baseEnv(env)->ReleasePrimitiveArrayCritical(env, array, carray, mode); |
| 2318 | JniValueType result; |
| 2319 | result.V = nullptr; |
| 2320 | sc.Check(soa, false, "V", &result); |
| 2321 | } |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 2322 | } |
| 2323 | |
| 2324 | static jobject NewDirectByteBuffer(JNIEnv* env, void* address, jlong capacity) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 2325 | ScopedObjectAccess soa(env); |
| 2326 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 2327 | JniValueType args[3] = {{.E = env}, {.p = address}, {.J = capacity}}; |
| 2328 | if (sc.Check(soa, true, "EpJ", args)) { |
| 2329 | JniValueType result; |
| 2330 | // Note: the validity of address and capacity are checked in the base implementation. |
| 2331 | result.L = baseEnv(env)->NewDirectByteBuffer(env, address, capacity); |
| 2332 | if (sc.Check(soa, false, "L", &result)) { |
| 2333 | return result.L; |
| 2334 | } |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 2335 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 2336 | return nullptr; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 2337 | } |
| 2338 | |
| 2339 | static void* GetDirectBufferAddress(JNIEnv* env, jobject buf) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 2340 | ScopedObjectAccess soa(env); |
| 2341 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 2342 | JniValueType args[2] = {{.E = env}, {.L = buf}}; |
| 2343 | if (sc.Check(soa, true, "EL", args)) { |
| 2344 | JniValueType result; |
| 2345 | // Note: this is implemented in the base environment by a GetLongField which will sanity |
| 2346 | // check the type of buf in GetLongField above. |
| 2347 | result.p = baseEnv(env)->GetDirectBufferAddress(env, buf); |
| 2348 | if (sc.Check(soa, false, "p", &result)) { |
| 2349 | return const_cast<void*>(result.p); |
| 2350 | } |
| 2351 | } |
| 2352 | return nullptr; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 2353 | } |
| 2354 | |
| 2355 | static jlong GetDirectBufferCapacity(JNIEnv* env, jobject buf) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 2356 | ScopedObjectAccess soa(env); |
| 2357 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 2358 | JniValueType args[2] = {{.E = env}, {.L = buf}}; |
| 2359 | if (sc.Check(soa, true, "EL", args)) { |
| 2360 | JniValueType result; |
| 2361 | // Note: this is implemented in the base environment by a GetIntField which will sanity |
| 2362 | // check the type of buf in GetIntField above. |
| 2363 | result.J = baseEnv(env)->GetDirectBufferCapacity(env, buf); |
| 2364 | if (sc.Check(soa, false, "J", &result)) { |
| 2365 | return result.J; |
| 2366 | } |
| 2367 | } |
| 2368 | return JNI_ERR; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 2369 | } |
| 2370 | |
| 2371 | private: |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 2372 | static JavaVMExt* GetJavaVMExt(JNIEnv* env) { |
| 2373 | return reinterpret_cast<JNIEnvExt*>(env)->vm; |
| 2374 | } |
| 2375 | |
| 2376 | static const JNINativeInterface* baseEnv(JNIEnv* env) { |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 2377 | return reinterpret_cast<JNIEnvExt*>(env)->unchecked_functions; |
| 2378 | } |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 2379 | |
| 2380 | static jobject NewRef(const char* function_name, JNIEnv* env, jobject obj, IndirectRefKind kind) { |
| 2381 | ScopedObjectAccess soa(env); |
| 2382 | ScopedCheck sc(kFlag_Default, function_name); |
| 2383 | JniValueType args[2] = {{.E = env}, {.L = obj}}; |
| 2384 | if (sc.Check(soa, true, "EL", args)) { |
| 2385 | JniValueType result; |
| 2386 | switch (kind) { |
| 2387 | case kGlobal: |
| 2388 | result.L = baseEnv(env)->NewGlobalRef(env, obj); |
| 2389 | break; |
| 2390 | case kLocal: |
| 2391 | result.L = baseEnv(env)->NewLocalRef(env, obj); |
| 2392 | break; |
| 2393 | case kWeakGlobal: |
| 2394 | result.L = baseEnv(env)->NewWeakGlobalRef(env, obj); |
| 2395 | break; |
| 2396 | default: |
| 2397 | LOG(FATAL) << "Unexpected reference kind: " << kind; |
| 2398 | } |
| 2399 | if (sc.Check(soa, false, "L", &result)) { |
| 2400 | DCHECK_EQ(IsSameObject(env, obj, result.L), JNI_TRUE); |
| 2401 | DCHECK(sc.CheckReferenceKind(kind, soa.Vm(), soa.Self(), result.L)); |
| 2402 | return result.L; |
| 2403 | } |
| 2404 | } |
| 2405 | return nullptr; |
| 2406 | } |
| 2407 | |
| 2408 | static void DeleteRef(const char* function_name, JNIEnv* env, jobject obj, IndirectRefKind kind) { |
| 2409 | ScopedObjectAccess soa(env); |
| 2410 | ScopedCheck sc(kFlag_ExcepOkay, function_name); |
| 2411 | JniValueType args[2] = {{.E = env}, {.L = obj}}; |
| 2412 | sc.Check(soa, true, "EL", args); |
| 2413 | if (sc.CheckReferenceKind(kind, soa.Vm(), soa.Self(), obj)) { |
| 2414 | JniValueType result; |
| 2415 | switch (kind) { |
| 2416 | case kGlobal: |
| 2417 | baseEnv(env)->DeleteGlobalRef(env, obj); |
| 2418 | break; |
| 2419 | case kLocal: |
| 2420 | baseEnv(env)->DeleteLocalRef(env, obj); |
| 2421 | break; |
| 2422 | case kWeakGlobal: |
| 2423 | baseEnv(env)->DeleteWeakGlobalRef(env, obj); |
| 2424 | break; |
| 2425 | default: |
| 2426 | LOG(FATAL) << "Unexpected reference kind: " << kind; |
| 2427 | } |
| 2428 | result.V = nullptr; |
| 2429 | sc.Check(soa, false, "V", &result); |
| 2430 | } |
| 2431 | } |
| 2432 | |
| 2433 | static jmethodID GetMethodIDInternal(const char* function_name, JNIEnv* env, jclass c, |
| 2434 | const char* name, const char* sig, bool is_static) { |
| 2435 | ScopedObjectAccess soa(env); |
| 2436 | ScopedCheck sc(kFlag_Default, function_name); |
| 2437 | JniValueType args[4] = {{.E = env}, {.c = c}, {.u = name}, {.u = sig}}; |
| 2438 | if (sc.Check(soa, true, "Ecuu", args)) { |
| 2439 | JniValueType result; |
| 2440 | if (is_static) { |
| 2441 | result.m = baseEnv(env)->GetStaticMethodID(env, c, name, sig); |
| 2442 | } else { |
| 2443 | result.m = baseEnv(env)->GetMethodID(env, c, name, sig); |
| 2444 | } |
| 2445 | if (sc.Check(soa, false, "m", &result)) { |
| 2446 | return result.m; |
| 2447 | } |
| 2448 | } |
| 2449 | return nullptr; |
| 2450 | } |
| 2451 | |
| 2452 | static jfieldID GetFieldIDInternal(const char* function_name, JNIEnv* env, jclass c, |
| 2453 | const char* name, const char* sig, bool is_static) { |
| 2454 | ScopedObjectAccess soa(env); |
| 2455 | ScopedCheck sc(kFlag_Default, function_name); |
| 2456 | JniValueType args[4] = {{.E = env}, {.c = c}, {.u = name}, {.u = sig}}; |
| 2457 | if (sc.Check(soa, true, "Ecuu", args)) { |
| 2458 | JniValueType result; |
| 2459 | if (is_static) { |
| 2460 | result.f = baseEnv(env)->GetStaticFieldID(env, c, name, sig); |
| 2461 | } else { |
| 2462 | result.f = baseEnv(env)->GetFieldID(env, c, name, sig); |
| 2463 | } |
| 2464 | if (sc.Check(soa, false, "f", &result)) { |
| 2465 | return result.f; |
| 2466 | } |
| 2467 | } |
| 2468 | return nullptr; |
| 2469 | } |
| 2470 | |
| 2471 | static JniValueType GetField(const char* function_name, JNIEnv* env, jobject obj, jfieldID fid, |
| 2472 | bool is_static, Primitive::Type type) { |
| 2473 | ScopedObjectAccess soa(env); |
| 2474 | ScopedCheck sc(kFlag_Default, function_name); |
| 2475 | JniValueType args[3] = {{.E = env}, {.L = obj}, {.f = fid}}; |
| 2476 | JniValueType result; |
| 2477 | if (sc.Check(soa, true, is_static ? "Ecf" : "ELf", args) && |
| 2478 | sc.CheckFieldAccess(soa, obj, fid, is_static, type)) { |
| 2479 | const char* result_check = nullptr; |
| 2480 | switch (type) { |
| 2481 | case Primitive::kPrimNot: |
| 2482 | if (is_static) { |
| 2483 | result.L = baseEnv(env)->GetStaticObjectField(env, down_cast<jclass>(obj), fid); |
| 2484 | } else { |
| 2485 | result.L = baseEnv(env)->GetObjectField(env, obj, fid); |
| 2486 | } |
| 2487 | result_check = "L"; |
| 2488 | break; |
| 2489 | case Primitive::kPrimBoolean: |
| 2490 | if (is_static) { |
| 2491 | result.Z = baseEnv(env)->GetStaticBooleanField(env, down_cast<jclass>(obj), fid); |
| 2492 | } else { |
| 2493 | result.Z = baseEnv(env)->GetBooleanField(env, obj, fid); |
| 2494 | } |
| 2495 | result_check = "Z"; |
| 2496 | break; |
| 2497 | case Primitive::kPrimByte: |
| 2498 | if (is_static) { |
| 2499 | result.B = baseEnv(env)->GetStaticByteField(env, down_cast<jclass>(obj), fid); |
| 2500 | } else { |
| 2501 | result.B = baseEnv(env)->GetByteField(env, obj, fid); |
| 2502 | } |
| 2503 | result_check = "B"; |
| 2504 | break; |
| 2505 | case Primitive::kPrimChar: |
| 2506 | if (is_static) { |
| 2507 | result.C = baseEnv(env)->GetStaticCharField(env, down_cast<jclass>(obj), fid); |
| 2508 | } else { |
| 2509 | result.C = baseEnv(env)->GetCharField(env, obj, fid); |
| 2510 | } |
| 2511 | result_check = "C"; |
| 2512 | break; |
| 2513 | case Primitive::kPrimShort: |
| 2514 | if (is_static) { |
| 2515 | result.S = baseEnv(env)->GetStaticShortField(env, down_cast<jclass>(obj), fid); |
| 2516 | } else { |
| 2517 | result.S = baseEnv(env)->GetShortField(env, obj, fid); |
| 2518 | } |
| 2519 | result_check = "S"; |
| 2520 | break; |
| 2521 | case Primitive::kPrimInt: |
| 2522 | if (is_static) { |
| 2523 | result.I = baseEnv(env)->GetStaticIntField(env, down_cast<jclass>(obj), fid); |
| 2524 | } else { |
| 2525 | result.I = baseEnv(env)->GetIntField(env, obj, fid); |
| 2526 | } |
| 2527 | result_check = "I"; |
| 2528 | break; |
| 2529 | case Primitive::kPrimLong: |
| 2530 | if (is_static) { |
| 2531 | result.J = baseEnv(env)->GetStaticLongField(env, down_cast<jclass>(obj), fid); |
| 2532 | } else { |
| 2533 | result.J = baseEnv(env)->GetLongField(env, obj, fid); |
| 2534 | } |
| 2535 | result_check = "J"; |
| 2536 | break; |
| 2537 | case Primitive::kPrimFloat: |
| 2538 | if (is_static) { |
| 2539 | result.F = baseEnv(env)->GetStaticFloatField(env, down_cast<jclass>(obj), fid); |
| 2540 | } else { |
| 2541 | result.F = baseEnv(env)->GetFloatField(env, obj, fid); |
| 2542 | } |
| 2543 | result_check = "F"; |
| 2544 | break; |
| 2545 | case Primitive::kPrimDouble: |
| 2546 | if (is_static) { |
| 2547 | result.D = baseEnv(env)->GetStaticDoubleField(env, down_cast<jclass>(obj), fid); |
| 2548 | } else { |
| 2549 | result.D = baseEnv(env)->GetDoubleField(env, obj, fid); |
| 2550 | } |
| 2551 | result_check = "D"; |
| 2552 | break; |
| 2553 | case Primitive::kPrimVoid: |
| 2554 | LOG(FATAL) << "Unexpected type: " << type; |
| 2555 | break; |
| 2556 | } |
| 2557 | if (sc.Check(soa, false, result_check, &result)) { |
| 2558 | return result; |
| 2559 | } |
| 2560 | } |
| 2561 | result.J = 0; |
| 2562 | return result; |
| 2563 | } |
| 2564 | |
| 2565 | static void SetField(const char* function_name, JNIEnv* env, jobject obj, jfieldID fid, |
| 2566 | bool is_static, Primitive::Type type, JniValueType value) { |
| 2567 | ScopedObjectAccess soa(env); |
| 2568 | ScopedCheck sc(kFlag_Default, function_name); |
| 2569 | JniValueType args[4] = {{.E = env}, {.L = obj}, {.f = fid}, value}; |
| 2570 | char sig[5] = { 'E', is_static ? 'c' : 'L', 'f', |
| 2571 | type == Primitive::kPrimNot ? 'L' : Primitive::Descriptor(type)[0], '\0'}; |
| 2572 | if (sc.Check(soa, true, sig, args) && |
| 2573 | sc.CheckFieldAccess(soa, obj, fid, is_static, type)) { |
| 2574 | switch (type) { |
| 2575 | case Primitive::kPrimNot: |
| 2576 | if (is_static) { |
| 2577 | baseEnv(env)->SetStaticObjectField(env, down_cast<jclass>(obj), fid, value.L); |
| 2578 | } else { |
| 2579 | baseEnv(env)->SetObjectField(env, obj, fid, value.L); |
| 2580 | } |
| 2581 | break; |
| 2582 | case Primitive::kPrimBoolean: |
| 2583 | if (is_static) { |
| 2584 | baseEnv(env)->SetStaticBooleanField(env, down_cast<jclass>(obj), fid, value.Z); |
| 2585 | } else { |
| 2586 | baseEnv(env)->SetBooleanField(env, obj, fid, value.Z); |
| 2587 | } |
| 2588 | break; |
| 2589 | case Primitive::kPrimByte: |
| 2590 | if (is_static) { |
| 2591 | baseEnv(env)->SetStaticByteField(env, down_cast<jclass>(obj), fid, value.B); |
| 2592 | } else { |
| 2593 | baseEnv(env)->SetByteField(env, obj, fid, value.B); |
| 2594 | } |
| 2595 | break; |
| 2596 | case Primitive::kPrimChar: |
| 2597 | if (is_static) { |
| 2598 | baseEnv(env)->SetStaticCharField(env, down_cast<jclass>(obj), fid, value.C); |
| 2599 | } else { |
| 2600 | baseEnv(env)->SetCharField(env, obj, fid, value.C); |
| 2601 | } |
| 2602 | break; |
| 2603 | case Primitive::kPrimShort: |
| 2604 | if (is_static) { |
| 2605 | baseEnv(env)->SetStaticShortField(env, down_cast<jclass>(obj), fid, value.S); |
| 2606 | } else { |
| 2607 | baseEnv(env)->SetShortField(env, obj, fid, value.S); |
| 2608 | } |
| 2609 | break; |
| 2610 | case Primitive::kPrimInt: |
| 2611 | if (is_static) { |
| 2612 | baseEnv(env)->SetStaticIntField(env, down_cast<jclass>(obj), fid, value.I); |
| 2613 | } else { |
| 2614 | baseEnv(env)->SetIntField(env, obj, fid, value.I); |
| 2615 | } |
| 2616 | break; |
| 2617 | case Primitive::kPrimLong: |
| 2618 | if (is_static) { |
| 2619 | baseEnv(env)->SetStaticLongField(env, down_cast<jclass>(obj), fid, value.J); |
| 2620 | } else { |
| 2621 | baseEnv(env)->SetLongField(env, obj, fid, value.J); |
| 2622 | } |
| 2623 | break; |
| 2624 | case Primitive::kPrimFloat: |
| 2625 | if (is_static) { |
| 2626 | baseEnv(env)->SetStaticFloatField(env, down_cast<jclass>(obj), fid, value.F); |
| 2627 | } else { |
| 2628 | baseEnv(env)->SetFloatField(env, obj, fid, value.F); |
| 2629 | } |
| 2630 | break; |
| 2631 | case Primitive::kPrimDouble: |
| 2632 | if (is_static) { |
| 2633 | baseEnv(env)->SetStaticDoubleField(env, down_cast<jclass>(obj), fid, value.D); |
| 2634 | } else { |
| 2635 | baseEnv(env)->SetDoubleField(env, obj, fid, value.D); |
| 2636 | } |
| 2637 | break; |
| 2638 | case Primitive::kPrimVoid: |
| 2639 | LOG(FATAL) << "Unexpected type: " << type; |
| 2640 | break; |
| 2641 | } |
| 2642 | JniValueType result; |
| 2643 | result.V = nullptr; |
| 2644 | sc.Check(soa, false, "V", &result); |
| 2645 | } |
| 2646 | } |
| 2647 | |
| 2648 | static bool CheckCallArgs(ScopedObjectAccess& soa, ScopedCheck& sc, JNIEnv* env, jobject obj, |
| 2649 | jclass c, jmethodID mid, InvokeType invoke) |
| 2650 | SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| 2651 | bool checked; |
| 2652 | switch (invoke) { |
| 2653 | case kVirtual: { |
| 2654 | DCHECK(c == nullptr); |
| 2655 | JniValueType args[3] = {{.E = env}, {.L = obj}, {.m = mid}}; |
| 2656 | checked = sc.Check(soa, true, "ELm.", args); |
| 2657 | break; |
| 2658 | } |
| 2659 | case kDirect: { |
| 2660 | JniValueType args[4] = {{.E = env}, {.L = obj}, {.c = c}, {.m = mid}}; |
| 2661 | checked = sc.Check(soa, true, "ELcm.", args); |
| 2662 | break; |
| 2663 | } |
| 2664 | case kStatic: { |
| 2665 | DCHECK(obj == nullptr); |
| 2666 | JniValueType args[3] = {{.E = env}, {.c = c}, {.m = mid}}; |
| 2667 | checked = sc.Check(soa, true, "Ecm.", args); |
| 2668 | break; |
| 2669 | } |
| 2670 | default: |
| 2671 | LOG(FATAL) << "Unexpected invoke: " << invoke; |
| 2672 | checked = false; |
| 2673 | break; |
| 2674 | } |
| 2675 | return checked; |
| 2676 | } |
| 2677 | |
| 2678 | static JniValueType CallMethodA(const char* function_name, JNIEnv* env, jobject obj, jclass c, |
| 2679 | jmethodID mid, jvalue* vargs, Primitive::Type type, |
| 2680 | InvokeType invoke) { |
| 2681 | ScopedObjectAccess soa(env); |
| 2682 | ScopedCheck sc(kFlag_Default, function_name); |
| 2683 | JniValueType result; |
| 2684 | if (CheckCallArgs(soa, sc, env, obj, c, mid, invoke) && |
| 2685 | sc.CheckMethodAndSig(soa, obj, c, mid, type, invoke)) { |
| 2686 | const char* result_check; |
| 2687 | switch (type) { |
| 2688 | case Primitive::kPrimNot: |
| 2689 | result_check = "L"; |
| 2690 | switch (invoke) { |
| 2691 | case kVirtual: |
| 2692 | result.L = baseEnv(env)->CallObjectMethodA(env, obj, mid, vargs); |
| 2693 | break; |
| 2694 | case kDirect: |
| 2695 | result.L = baseEnv(env)->CallNonvirtualObjectMethodA(env, obj, c, mid, vargs); |
| 2696 | break; |
| 2697 | case kStatic: |
| 2698 | result.L = baseEnv(env)->CallStaticObjectMethodA(env, c, mid, vargs); |
| 2699 | break; |
| 2700 | default: |
| 2701 | break; |
| 2702 | } |
| 2703 | break; |
| 2704 | case Primitive::kPrimBoolean: |
| 2705 | result_check = "Z"; |
| 2706 | switch (invoke) { |
| 2707 | case kVirtual: |
| 2708 | result.Z = baseEnv(env)->CallBooleanMethodA(env, obj, mid, vargs); |
| 2709 | break; |
| 2710 | case kDirect: |
| 2711 | result.Z = baseEnv(env)->CallNonvirtualBooleanMethodA(env, obj, c, mid, vargs); |
| 2712 | break; |
| 2713 | case kStatic: |
| 2714 | result.Z = baseEnv(env)->CallStaticBooleanMethodA(env, c, mid, vargs); |
| 2715 | break; |
| 2716 | default: |
| 2717 | break; |
| 2718 | } |
| 2719 | break; |
| 2720 | case Primitive::kPrimByte: |
| 2721 | result_check = "B"; |
| 2722 | switch (invoke) { |
| 2723 | case kVirtual: |
| 2724 | result.B = baseEnv(env)->CallByteMethodA(env, obj, mid, vargs); |
| 2725 | break; |
| 2726 | case kDirect: |
| 2727 | result.B = baseEnv(env)->CallNonvirtualByteMethodA(env, obj, c, mid, vargs); |
| 2728 | break; |
| 2729 | case kStatic: |
| 2730 | result.B = baseEnv(env)->CallStaticByteMethodA(env, c, mid, vargs); |
| 2731 | break; |
| 2732 | default: |
| 2733 | break; |
| 2734 | } |
| 2735 | break; |
| 2736 | case Primitive::kPrimChar: |
| 2737 | result_check = "C"; |
| 2738 | switch (invoke) { |
| 2739 | case kVirtual: |
| 2740 | result.C = baseEnv(env)->CallCharMethodA(env, obj, mid, vargs); |
| 2741 | break; |
| 2742 | case kDirect: |
| 2743 | result.C = baseEnv(env)->CallNonvirtualCharMethodA(env, obj, c, mid, vargs); |
| 2744 | break; |
| 2745 | case kStatic: |
| 2746 | result.C = baseEnv(env)->CallStaticCharMethodA(env, c, mid, vargs); |
| 2747 | break; |
| 2748 | default: |
| 2749 | break; |
| 2750 | } |
| 2751 | break; |
| 2752 | case Primitive::kPrimShort: |
| 2753 | result_check = "S"; |
| 2754 | switch (invoke) { |
| 2755 | case kVirtual: |
| 2756 | result.S = baseEnv(env)->CallShortMethodA(env, obj, mid, vargs); |
| 2757 | break; |
| 2758 | case kDirect: |
| 2759 | result.S = baseEnv(env)->CallNonvirtualShortMethodA(env, obj, c, mid, vargs); |
| 2760 | break; |
| 2761 | case kStatic: |
| 2762 | result.S = baseEnv(env)->CallStaticShortMethodA(env, c, mid, vargs); |
| 2763 | break; |
| 2764 | default: |
| 2765 | break; |
| 2766 | } |
| 2767 | break; |
| 2768 | case Primitive::kPrimInt: |
| 2769 | result_check = "I"; |
| 2770 | switch (invoke) { |
| 2771 | case kVirtual: |
| 2772 | result.I = baseEnv(env)->CallIntMethodA(env, obj, mid, vargs); |
| 2773 | break; |
| 2774 | case kDirect: |
| 2775 | result.I = baseEnv(env)->CallNonvirtualIntMethodA(env, obj, c, mid, vargs); |
| 2776 | break; |
| 2777 | case kStatic: |
| 2778 | result.I = baseEnv(env)->CallStaticIntMethodA(env, c, mid, vargs); |
| 2779 | break; |
| 2780 | default: |
| 2781 | break; |
| 2782 | } |
| 2783 | break; |
| 2784 | case Primitive::kPrimLong: |
| 2785 | result_check = "J"; |
| 2786 | switch (invoke) { |
| 2787 | case kVirtual: |
| 2788 | result.J = baseEnv(env)->CallLongMethodA(env, obj, mid, vargs); |
| 2789 | break; |
| 2790 | case kDirect: |
| 2791 | result.J = baseEnv(env)->CallNonvirtualLongMethodA(env, obj, c, mid, vargs); |
| 2792 | break; |
| 2793 | case kStatic: |
| 2794 | result.J = baseEnv(env)->CallStaticLongMethodA(env, c, mid, vargs); |
| 2795 | break; |
| 2796 | default: |
| 2797 | break; |
| 2798 | } |
| 2799 | break; |
| 2800 | case Primitive::kPrimFloat: |
| 2801 | result_check = "F"; |
| 2802 | switch (invoke) { |
| 2803 | case kVirtual: |
| 2804 | result.F = baseEnv(env)->CallFloatMethodA(env, obj, mid, vargs); |
| 2805 | break; |
| 2806 | case kDirect: |
| 2807 | result.F = baseEnv(env)->CallNonvirtualFloatMethodA(env, obj, c, mid, vargs); |
| 2808 | break; |
| 2809 | case kStatic: |
| 2810 | result.F = baseEnv(env)->CallStaticFloatMethodA(env, c, mid, vargs); |
| 2811 | break; |
| 2812 | default: |
| 2813 | break; |
| 2814 | } |
| 2815 | break; |
| 2816 | case Primitive::kPrimDouble: |
| 2817 | result_check = "D"; |
| 2818 | switch (invoke) { |
| 2819 | case kVirtual: |
| 2820 | result.D = baseEnv(env)->CallDoubleMethodA(env, obj, mid, vargs); |
| 2821 | break; |
| 2822 | case kDirect: |
| 2823 | result.D = baseEnv(env)->CallNonvirtualDoubleMethodA(env, obj, c, mid, vargs); |
| 2824 | break; |
| 2825 | case kStatic: |
| 2826 | result.D = baseEnv(env)->CallStaticDoubleMethodA(env, c, mid, vargs); |
| 2827 | break; |
| 2828 | default: |
| 2829 | break; |
| 2830 | } |
| 2831 | break; |
| 2832 | case Primitive::kPrimVoid: |
| 2833 | result_check = "V"; |
| 2834 | result.V = nullptr; |
| 2835 | switch (invoke) { |
| 2836 | case kVirtual: |
| 2837 | baseEnv(env)->CallVoidMethodA(env, obj, mid, vargs); |
| 2838 | break; |
| 2839 | case kDirect: |
| 2840 | baseEnv(env)->CallNonvirtualVoidMethodA(env, obj, c, mid, vargs); |
| 2841 | break; |
| 2842 | case kStatic: |
| 2843 | baseEnv(env)->CallStaticVoidMethodA(env, c, mid, vargs); |
| 2844 | break; |
| 2845 | default: |
| 2846 | LOG(FATAL) << "Unexpected invoke: " << invoke; |
| 2847 | } |
| 2848 | break; |
| 2849 | default: |
| 2850 | LOG(FATAL) << "Unexpected return type: " << type; |
| 2851 | result_check = nullptr; |
| 2852 | } |
| 2853 | if (sc.Check(soa, false, result_check, &result)) { |
| 2854 | return result; |
| 2855 | } |
| 2856 | } |
| 2857 | result.J = 0; |
| 2858 | return result; |
| 2859 | } |
| 2860 | |
| 2861 | static JniValueType CallMethodV(const char* function_name, JNIEnv* env, jobject obj, jclass c, |
| 2862 | jmethodID mid, va_list vargs, Primitive::Type type, |
| 2863 | InvokeType invoke) { |
| 2864 | ScopedObjectAccess soa(env); |
| 2865 | ScopedCheck sc(kFlag_Default, function_name); |
| 2866 | JniValueType result; |
| 2867 | if (CheckCallArgs(soa, sc, env, obj, c, mid, invoke) && |
| 2868 | sc.CheckMethodAndSig(soa, obj, c, mid, type, invoke)) { |
| 2869 | const char* result_check; |
| 2870 | switch (type) { |
| 2871 | case Primitive::kPrimNot: |
| 2872 | result_check = "L"; |
| 2873 | switch (invoke) { |
| 2874 | case kVirtual: |
| 2875 | result.L = baseEnv(env)->CallObjectMethodV(env, obj, mid, vargs); |
| 2876 | break; |
| 2877 | case kDirect: |
| 2878 | result.L = baseEnv(env)->CallNonvirtualObjectMethodV(env, obj, c, mid, vargs); |
| 2879 | break; |
| 2880 | case kStatic: |
| 2881 | result.L = baseEnv(env)->CallStaticObjectMethodV(env, c, mid, vargs); |
| 2882 | break; |
| 2883 | default: |
| 2884 | LOG(FATAL) << "Unexpected invoke: " << invoke; |
| 2885 | } |
| 2886 | break; |
| 2887 | case Primitive::kPrimBoolean: |
| 2888 | result_check = "Z"; |
| 2889 | switch (invoke) { |
| 2890 | case kVirtual: |
| 2891 | result.Z = baseEnv(env)->CallBooleanMethodV(env, obj, mid, vargs); |
| 2892 | break; |
| 2893 | case kDirect: |
| 2894 | result.Z = baseEnv(env)->CallNonvirtualBooleanMethodV(env, obj, c, mid, vargs); |
| 2895 | break; |
| 2896 | case kStatic: |
| 2897 | result.Z = baseEnv(env)->CallStaticBooleanMethodV(env, c, mid, vargs); |
| 2898 | break; |
| 2899 | default: |
| 2900 | LOG(FATAL) << "Unexpected invoke: " << invoke; |
| 2901 | } |
| 2902 | break; |
| 2903 | case Primitive::kPrimByte: |
| 2904 | result_check = "B"; |
| 2905 | switch (invoke) { |
| 2906 | case kVirtual: |
| 2907 | result.B = baseEnv(env)->CallByteMethodV(env, obj, mid, vargs); |
| 2908 | break; |
| 2909 | case kDirect: |
| 2910 | result.B = baseEnv(env)->CallNonvirtualByteMethodV(env, obj, c, mid, vargs); |
| 2911 | break; |
| 2912 | case kStatic: |
| 2913 | result.B = baseEnv(env)->CallStaticByteMethodV(env, c, mid, vargs); |
| 2914 | break; |
| 2915 | default: |
| 2916 | LOG(FATAL) << "Unexpected invoke: " << invoke; |
| 2917 | } |
| 2918 | break; |
| 2919 | case Primitive::kPrimChar: |
| 2920 | result_check = "C"; |
| 2921 | switch (invoke) { |
| 2922 | case kVirtual: |
| 2923 | result.C = baseEnv(env)->CallCharMethodV(env, obj, mid, vargs); |
| 2924 | break; |
| 2925 | case kDirect: |
| 2926 | result.C = baseEnv(env)->CallNonvirtualCharMethodV(env, obj, c, mid, vargs); |
| 2927 | break; |
| 2928 | case kStatic: |
| 2929 | result.C = baseEnv(env)->CallStaticCharMethodV(env, c, mid, vargs); |
| 2930 | break; |
| 2931 | default: |
| 2932 | LOG(FATAL) << "Unexpected invoke: " << invoke; |
| 2933 | } |
| 2934 | break; |
| 2935 | case Primitive::kPrimShort: |
| 2936 | result_check = "S"; |
| 2937 | switch (invoke) { |
| 2938 | case kVirtual: |
| 2939 | result.S = baseEnv(env)->CallShortMethodV(env, obj, mid, vargs); |
| 2940 | break; |
| 2941 | case kDirect: |
| 2942 | result.S = baseEnv(env)->CallNonvirtualShortMethodV(env, obj, c, mid, vargs); |
| 2943 | break; |
| 2944 | case kStatic: |
| 2945 | result.S = baseEnv(env)->CallStaticShortMethodV(env, c, mid, vargs); |
| 2946 | break; |
| 2947 | default: |
| 2948 | LOG(FATAL) << "Unexpected invoke: " << invoke; |
| 2949 | } |
| 2950 | break; |
| 2951 | case Primitive::kPrimInt: |
| 2952 | result_check = "I"; |
| 2953 | switch (invoke) { |
| 2954 | case kVirtual: |
| 2955 | result.I = baseEnv(env)->CallIntMethodV(env, obj, mid, vargs); |
| 2956 | break; |
| 2957 | case kDirect: |
| 2958 | result.I = baseEnv(env)->CallNonvirtualIntMethodV(env, obj, c, mid, vargs); |
| 2959 | break; |
| 2960 | case kStatic: |
| 2961 | result.I = baseEnv(env)->CallStaticIntMethodV(env, c, mid, vargs); |
| 2962 | break; |
| 2963 | default: |
| 2964 | LOG(FATAL) << "Unexpected invoke: " << invoke; |
| 2965 | } |
| 2966 | break; |
| 2967 | case Primitive::kPrimLong: |
| 2968 | result_check = "J"; |
| 2969 | switch (invoke) { |
| 2970 | case kVirtual: |
| 2971 | result.J = baseEnv(env)->CallLongMethodV(env, obj, mid, vargs); |
| 2972 | break; |
| 2973 | case kDirect: |
| 2974 | result.J = baseEnv(env)->CallNonvirtualLongMethodV(env, obj, c, mid, vargs); |
| 2975 | break; |
| 2976 | case kStatic: |
| 2977 | result.J = baseEnv(env)->CallStaticLongMethodV(env, c, mid, vargs); |
| 2978 | break; |
| 2979 | default: |
| 2980 | LOG(FATAL) << "Unexpected invoke: " << invoke; |
| 2981 | } |
| 2982 | break; |
| 2983 | case Primitive::kPrimFloat: |
| 2984 | result_check = "F"; |
| 2985 | switch (invoke) { |
| 2986 | case kVirtual: |
| 2987 | result.F = baseEnv(env)->CallFloatMethodV(env, obj, mid, vargs); |
| 2988 | break; |
| 2989 | case kDirect: |
| 2990 | result.F = baseEnv(env)->CallNonvirtualFloatMethodV(env, obj, c, mid, vargs); |
| 2991 | break; |
| 2992 | case kStatic: |
| 2993 | result.F = baseEnv(env)->CallStaticFloatMethodV(env, c, mid, vargs); |
| 2994 | break; |
| 2995 | default: |
| 2996 | LOG(FATAL) << "Unexpected invoke: " << invoke; |
| 2997 | } |
| 2998 | break; |
| 2999 | case Primitive::kPrimDouble: |
| 3000 | result_check = "D"; |
| 3001 | switch (invoke) { |
| 3002 | case kVirtual: |
| 3003 | result.D = baseEnv(env)->CallDoubleMethodV(env, obj, mid, vargs); |
| 3004 | break; |
| 3005 | case kDirect: |
| 3006 | result.D = baseEnv(env)->CallNonvirtualDoubleMethodV(env, obj, c, mid, vargs); |
| 3007 | break; |
| 3008 | case kStatic: |
| 3009 | result.D = baseEnv(env)->CallStaticDoubleMethodV(env, c, mid, vargs); |
| 3010 | break; |
| 3011 | default: |
| 3012 | LOG(FATAL) << "Unexpected invoke: " << invoke; |
| 3013 | } |
| 3014 | break; |
| 3015 | case Primitive::kPrimVoid: |
| 3016 | result_check = "V"; |
| 3017 | result.V = nullptr; |
| 3018 | switch (invoke) { |
| 3019 | case kVirtual: |
| 3020 | baseEnv(env)->CallVoidMethodV(env, obj, mid, vargs); |
| 3021 | break; |
| 3022 | case kDirect: |
| 3023 | baseEnv(env)->CallNonvirtualVoidMethodV(env, obj, c, mid, vargs); |
| 3024 | break; |
| 3025 | case kStatic: |
| 3026 | baseEnv(env)->CallStaticVoidMethodV(env, c, mid, vargs); |
| 3027 | break; |
| 3028 | default: |
| 3029 | LOG(FATAL) << "Unexpected invoke: " << invoke; |
| 3030 | } |
| 3031 | break; |
| 3032 | default: |
| 3033 | LOG(FATAL) << "Unexpected return type: " << type; |
| 3034 | result_check = nullptr; |
| 3035 | } |
| 3036 | if (sc.Check(soa, false, result_check, &result)) { |
| 3037 | return result; |
| 3038 | } |
| 3039 | } |
| 3040 | result.J = 0; |
| 3041 | return result; |
| 3042 | } |
| 3043 | |
| 3044 | static const void* GetStringCharsInternal(const char* function_name, JNIEnv* env, jstring string, |
| 3045 | jboolean* is_copy, bool utf, bool critical) { |
| 3046 | ScopedObjectAccess soa(env); |
| 3047 | int flags = critical ? kFlag_CritGet : kFlag_CritOkay; |
| 3048 | ScopedCheck sc(flags, function_name); |
| 3049 | JniValueType args[3] = {{.E = env}, {.s = string}, {.p = is_copy}}; |
| 3050 | if (sc.Check(soa, true, "Esp", args)) { |
| 3051 | JniValueType result; |
| 3052 | if (utf) { |
| 3053 | CHECK(!critical); |
| 3054 | result.u = baseEnv(env)->GetStringUTFChars(env, string, is_copy); |
| 3055 | } else { |
| 3056 | if (critical) { |
| 3057 | result.p = baseEnv(env)->GetStringCritical(env, string, is_copy); |
| 3058 | } else { |
| 3059 | result.p = baseEnv(env)->GetStringChars(env, string, is_copy); |
| 3060 | } |
| 3061 | } |
| 3062 | // TODO: could we be smarter about not copying when local_is_copy? |
| 3063 | if (result.p != nullptr && soa.ForceCopy()) { |
| 3064 | if (utf) { |
| 3065 | size_t length_in_bytes = strlen(result.u) + 1; |
| 3066 | result.u = |
| 3067 | reinterpret_cast<const char*>(GuardedCopy::Create(result.u, length_in_bytes, false)); |
| 3068 | } else { |
| 3069 | size_t length_in_bytes = baseEnv(env)->GetStringLength(env, string) * 2; |
| 3070 | result.p = |
| 3071 | reinterpret_cast<const jchar*>(GuardedCopy::Create(result.p, length_in_bytes, false)); |
| 3072 | } |
| 3073 | if (is_copy != nullptr) { |
| 3074 | *is_copy = JNI_TRUE; |
| 3075 | } |
| 3076 | } |
| 3077 | if (sc.Check(soa, false, utf ? "u" : "p", &result)) { |
| 3078 | return utf ? result.u : result.p; |
| 3079 | } |
| 3080 | } |
| 3081 | return nullptr; |
| 3082 | } |
| 3083 | |
| 3084 | static void ReleaseStringCharsInternal(const char* function_name, JNIEnv* env, jstring string, |
| 3085 | const void* chars, bool utf, bool critical) { |
| 3086 | ScopedObjectAccess soa(env); |
| 3087 | int flags = kFlag_ExcepOkay | kFlag_Release; |
| 3088 | if (critical) { |
| 3089 | flags |= kFlag_CritRelease; |
| 3090 | } |
| 3091 | ScopedCheck sc(flags, function_name); |
| 3092 | sc.CheckNonNull(chars); |
| 3093 | bool force_copy_ok = !soa.ForceCopy() || GuardedCopy::Check(function_name, chars, false); |
| 3094 | if (force_copy_ok && soa.ForceCopy()) { |
| 3095 | chars = reinterpret_cast<const jchar*>(GuardedCopy::Destroy(const_cast<void*>(chars))); |
| 3096 | } |
| 3097 | if (force_copy_ok) { |
| 3098 | JniValueType args[3] = {{.E = env}, {.s = string}, {.p = chars}}; |
| 3099 | if (sc.Check(soa, true, utf ? "Esu" : "Esp", args)) { |
| 3100 | if (utf) { |
| 3101 | CHECK(!critical); |
| 3102 | baseEnv(env)->ReleaseStringUTFChars(env, string, reinterpret_cast<const char*>(chars)); |
| 3103 | } else { |
| 3104 | if (critical) { |
| 3105 | baseEnv(env)->ReleaseStringCritical(env, string, reinterpret_cast<const jchar*>(chars)); |
| 3106 | } else { |
| 3107 | baseEnv(env)->ReleaseStringChars(env, string, reinterpret_cast<const jchar*>(chars)); |
| 3108 | } |
| 3109 | } |
| 3110 | JniValueType result; |
| 3111 | sc.Check(soa, false, "V", &result); |
| 3112 | } |
| 3113 | } |
| 3114 | } |
| 3115 | |
| 3116 | static jarray NewPrimitiveArray(const char* function_name, JNIEnv* env, jsize length, |
| 3117 | Primitive::Type type) { |
| 3118 | ScopedObjectAccess soa(env); |
| 3119 | ScopedCheck sc(kFlag_Default, __FUNCTION__); |
| 3120 | JniValueType args[2] = {{.E = env}, {.z = length}}; |
| 3121 | if (sc.Check(soa, true, "Ez", args)) { |
| 3122 | JniValueType result; |
| 3123 | switch (type) { |
| 3124 | case Primitive::kPrimBoolean: |
| 3125 | result.a = baseEnv(env)->NewBooleanArray(env, length); |
| 3126 | break; |
| 3127 | case Primitive::kPrimByte: |
| 3128 | result.a = baseEnv(env)->NewByteArray(env, length); |
| 3129 | break; |
| 3130 | case Primitive::kPrimChar: |
| 3131 | result.a = baseEnv(env)->NewCharArray(env, length); |
| 3132 | break; |
| 3133 | case Primitive::kPrimShort: |
| 3134 | result.a = baseEnv(env)->NewShortArray(env, length); |
| 3135 | break; |
| 3136 | case Primitive::kPrimInt: |
| 3137 | result.a = baseEnv(env)->NewIntArray(env, length); |
| 3138 | break; |
| 3139 | case Primitive::kPrimLong: |
| 3140 | result.a = baseEnv(env)->NewLongArray(env, length); |
| 3141 | break; |
| 3142 | case Primitive::kPrimFloat: |
| 3143 | result.a = baseEnv(env)->NewFloatArray(env, length); |
| 3144 | break; |
| 3145 | case Primitive::kPrimDouble: |
| 3146 | result.a = baseEnv(env)->NewDoubleArray(env, length); |
| 3147 | break; |
| 3148 | default: |
| 3149 | LOG(FATAL) << "Unexpected primitive type: " << type; |
| 3150 | } |
| 3151 | if (sc.Check(soa, false, "a", &result)) { |
| 3152 | return result.a; |
| 3153 | } |
| 3154 | } |
| 3155 | return nullptr; |
| 3156 | } |
| 3157 | |
| 3158 | static void* GetPrimitiveArrayElements(const char* function_name, Primitive::Type type, |
| 3159 | JNIEnv* env, jarray array, jboolean* is_copy) { |
| 3160 | ScopedObjectAccess soa(env); |
| 3161 | ScopedCheck sc(kFlag_Default, function_name); |
| 3162 | JniValueType args[3] = {{.E = env}, {.a = array}, {.p = is_copy}}; |
| 3163 | if (sc.Check(soa, true, "Eap", args) && sc.CheckPrimitiveArrayType(soa, array, type)) { |
| 3164 | JniValueType result; |
| 3165 | switch (type) { |
| 3166 | case Primitive::kPrimBoolean: |
| 3167 | result.p = baseEnv(env)->GetBooleanArrayElements(env, down_cast<jbooleanArray>(array), |
| 3168 | is_copy); |
| 3169 | break; |
| 3170 | case Primitive::kPrimByte: |
| 3171 | result.p = baseEnv(env)->GetByteArrayElements(env, down_cast<jbyteArray>(array), |
| 3172 | is_copy); |
| 3173 | break; |
| 3174 | case Primitive::kPrimChar: |
| 3175 | result.p = baseEnv(env)->GetCharArrayElements(env, down_cast<jcharArray>(array), |
| 3176 | is_copy); |
| 3177 | break; |
| 3178 | case Primitive::kPrimShort: |
| 3179 | result.p = baseEnv(env)->GetShortArrayElements(env, down_cast<jshortArray>(array), |
| 3180 | is_copy); |
| 3181 | break; |
| 3182 | case Primitive::kPrimInt: |
| 3183 | result.p = baseEnv(env)->GetIntArrayElements(env, down_cast<jintArray>(array), is_copy); |
| 3184 | break; |
| 3185 | case Primitive::kPrimLong: |
| 3186 | result.p = baseEnv(env)->GetLongArrayElements(env, down_cast<jlongArray>(array), |
| 3187 | is_copy); |
| 3188 | break; |
| 3189 | case Primitive::kPrimFloat: |
| 3190 | result.p = baseEnv(env)->GetFloatArrayElements(env, down_cast<jfloatArray>(array), |
| 3191 | is_copy); |
| 3192 | break; |
| 3193 | case Primitive::kPrimDouble: |
| 3194 | result.p = baseEnv(env)->GetDoubleArrayElements(env, down_cast<jdoubleArray>(array), |
| 3195 | is_copy); |
| 3196 | break; |
| 3197 | default: |
| 3198 | LOG(FATAL) << "Unexpected primitive type: " << type; |
| 3199 | } |
| 3200 | if (result.p != nullptr && soa.ForceCopy()) { |
| 3201 | result.p = GuardedCopy::CreateGuardedPACopy(env, array, is_copy); |
| 3202 | if (is_copy != nullptr) { |
| 3203 | *is_copy = JNI_TRUE; |
| 3204 | } |
| 3205 | } |
| 3206 | if (sc.Check(soa, false, "p", &result)) { |
| 3207 | return const_cast<void*>(result.p); |
| 3208 | } |
| 3209 | } |
| 3210 | return nullptr; |
| 3211 | } |
| 3212 | |
| 3213 | static void ReleasePrimitiveArrayElements(const char* function_name, Primitive::Type type, |
| 3214 | JNIEnv* env, jarray array, void* elems, jint mode) { |
| 3215 | ScopedObjectAccess soa(env); |
| 3216 | ScopedCheck sc(kFlag_ExcepOkay, function_name); |
| 3217 | if (sc.CheckNonNull(elems) && sc.CheckPrimitiveArrayType(soa, array, type)) { |
| 3218 | if (soa.ForceCopy()) { |
| 3219 | elems = GuardedCopy::ReleaseGuardedPACopy(function_name, env, array, elems, mode); |
| 3220 | } |
| 3221 | if (!soa.ForceCopy() || elems != nullptr) { |
| 3222 | JniValueType args[4] = {{.E = env}, {.a = array}, {.p = elems}, {.r = mode}}; |
| 3223 | if (sc.Check(soa, true, "Eapr", args)) { |
| 3224 | switch (type) { |
| 3225 | case Primitive::kPrimBoolean: |
| 3226 | baseEnv(env)->ReleaseBooleanArrayElements(env, down_cast<jbooleanArray>(array), |
| 3227 | reinterpret_cast<jboolean*>(elems), mode); |
| 3228 | break; |
| 3229 | case Primitive::kPrimByte: |
| 3230 | baseEnv(env)->ReleaseByteArrayElements(env, down_cast<jbyteArray>(array), |
| 3231 | reinterpret_cast<jbyte*>(elems), mode); |
| 3232 | break; |
| 3233 | case Primitive::kPrimChar: |
| 3234 | baseEnv(env)->ReleaseCharArrayElements(env, down_cast<jcharArray>(array), |
| 3235 | reinterpret_cast<jchar*>(elems), mode); |
| 3236 | break; |
| 3237 | case Primitive::kPrimShort: |
| 3238 | baseEnv(env)->ReleaseShortArrayElements(env, down_cast<jshortArray>(array), |
| 3239 | reinterpret_cast<jshort*>(elems), mode); |
| 3240 | break; |
| 3241 | case Primitive::kPrimInt: |
| 3242 | baseEnv(env)->ReleaseIntArrayElements(env, down_cast<jintArray>(array), |
| 3243 | reinterpret_cast<jint*>(elems), mode); |
| 3244 | break; |
| 3245 | case Primitive::kPrimLong: |
| 3246 | baseEnv(env)->ReleaseLongArrayElements(env, down_cast<jlongArray>(array), |
| 3247 | reinterpret_cast<jlong*>(elems), mode); |
| 3248 | break; |
| 3249 | case Primitive::kPrimFloat: |
| 3250 | baseEnv(env)->ReleaseFloatArrayElements(env, down_cast<jfloatArray>(array), |
| 3251 | reinterpret_cast<jfloat*>(elems), mode); |
| 3252 | break; |
| 3253 | case Primitive::kPrimDouble: |
| 3254 | baseEnv(env)->ReleaseDoubleArrayElements(env, down_cast<jdoubleArray>(array), |
| 3255 | reinterpret_cast<jdouble*>(elems), mode); |
| 3256 | break; |
| 3257 | default: |
| 3258 | LOG(FATAL) << "Unexpected primitive type: " << type; |
| 3259 | } |
| 3260 | JniValueType result; |
| 3261 | result.V = nullptr; |
| 3262 | sc.Check(soa, false, "V", &result); |
| 3263 | } |
| 3264 | } |
| 3265 | } |
| 3266 | } |
| 3267 | |
| 3268 | static void GetPrimitiveArrayRegion(const char* function_name, Primitive::Type type, JNIEnv* env, |
| 3269 | jarray array, jsize start, jsize len, void* buf) { |
| 3270 | ScopedObjectAccess soa(env); |
| 3271 | ScopedCheck sc(kFlag_Default, function_name); |
| 3272 | JniValueType args[5] = {{.E = env}, {.a = array}, {.z = start}, {.z = len}, {.p = buf}}; |
| 3273 | // Note: the start and len arguments are checked as 'I' rather than 'z' as invalid indices |
| 3274 | // result in ArrayIndexOutOfBoundsExceptions in the base implementation. |
| 3275 | if (sc.Check(soa, true, "EaIIp", args) && sc.CheckPrimitiveArrayType(soa, array, type)) { |
| 3276 | switch (type) { |
| 3277 | case Primitive::kPrimBoolean: |
| 3278 | baseEnv(env)->GetBooleanArrayRegion(env, down_cast<jbooleanArray>(array), start, len, |
| 3279 | reinterpret_cast<jboolean*>(buf)); |
| 3280 | break; |
| 3281 | case Primitive::kPrimByte: |
| 3282 | baseEnv(env)->GetByteArrayRegion(env, down_cast<jbyteArray>(array), start, len, |
| 3283 | reinterpret_cast<jbyte*>(buf)); |
| 3284 | break; |
| 3285 | case Primitive::kPrimChar: |
| 3286 | baseEnv(env)->GetCharArrayRegion(env, down_cast<jcharArray>(array), start, len, |
| 3287 | reinterpret_cast<jchar*>(buf)); |
| 3288 | break; |
| 3289 | case Primitive::kPrimShort: |
| 3290 | baseEnv(env)->GetShortArrayRegion(env, down_cast<jshortArray>(array), start, len, |
| 3291 | reinterpret_cast<jshort*>(buf)); |
| 3292 | break; |
| 3293 | case Primitive::kPrimInt: |
| 3294 | baseEnv(env)->GetIntArrayRegion(env, down_cast<jintArray>(array), start, len, |
| 3295 | reinterpret_cast<jint*>(buf)); |
| 3296 | break; |
| 3297 | case Primitive::kPrimLong: |
| 3298 | baseEnv(env)->GetLongArrayRegion(env, down_cast<jlongArray>(array), start, len, |
| 3299 | reinterpret_cast<jlong*>(buf)); |
| 3300 | break; |
| 3301 | case Primitive::kPrimFloat: |
| 3302 | baseEnv(env)->GetFloatArrayRegion(env, down_cast<jfloatArray>(array), start, len, |
| 3303 | reinterpret_cast<jfloat*>(buf)); |
| 3304 | break; |
| 3305 | case Primitive::kPrimDouble: |
| 3306 | baseEnv(env)->GetDoubleArrayRegion(env, down_cast<jdoubleArray>(array), start, len, |
| 3307 | reinterpret_cast<jdouble*>(buf)); |
| 3308 | break; |
| 3309 | default: |
| 3310 | LOG(FATAL) << "Unexpected primitive type: " << type; |
| 3311 | } |
| 3312 | JniValueType result; |
| 3313 | result.V = nullptr; |
| 3314 | sc.Check(soa, false, "V", &result); |
| 3315 | } |
| 3316 | } |
| 3317 | |
| 3318 | static void SetPrimitiveArrayRegion(const char* function_name, Primitive::Type type, JNIEnv* env, |
| 3319 | jarray array, jsize start, jsize len, const void* buf) { |
| 3320 | ScopedObjectAccess soa(env); |
| 3321 | ScopedCheck sc(kFlag_Default, function_name); |
| 3322 | JniValueType args[5] = {{.E = env}, {.a = array}, {.z = start}, {.z = len}, {.p = buf}}; |
| 3323 | // Note: the start and len arguments are checked as 'I' rather than 'z' as invalid indices |
| 3324 | // result in ArrayIndexOutOfBoundsExceptions in the base implementation. |
| 3325 | if (sc.Check(soa, true, "EaIIp", args) && sc.CheckPrimitiveArrayType(soa, array, type)) { |
| 3326 | switch (type) { |
| 3327 | case Primitive::kPrimBoolean: |
| 3328 | baseEnv(env)->SetBooleanArrayRegion(env, down_cast<jbooleanArray>(array), start, len, |
| 3329 | reinterpret_cast<const jboolean*>(buf)); |
| 3330 | break; |
| 3331 | case Primitive::kPrimByte: |
| 3332 | baseEnv(env)->SetByteArrayRegion(env, down_cast<jbyteArray>(array), start, len, |
| 3333 | reinterpret_cast<const jbyte*>(buf)); |
| 3334 | break; |
| 3335 | case Primitive::kPrimChar: |
| 3336 | baseEnv(env)->SetCharArrayRegion(env, down_cast<jcharArray>(array), start, len, |
| 3337 | reinterpret_cast<const jchar*>(buf)); |
| 3338 | break; |
| 3339 | case Primitive::kPrimShort: |
| 3340 | baseEnv(env)->SetShortArrayRegion(env, down_cast<jshortArray>(array), start, len, |
| 3341 | reinterpret_cast<const jshort*>(buf)); |
| 3342 | break; |
| 3343 | case Primitive::kPrimInt: |
| 3344 | baseEnv(env)->SetIntArrayRegion(env, down_cast<jintArray>(array), start, len, |
| 3345 | reinterpret_cast<const jint*>(buf)); |
| 3346 | break; |
| 3347 | case Primitive::kPrimLong: |
| 3348 | baseEnv(env)->SetLongArrayRegion(env, down_cast<jlongArray>(array), start, len, |
| 3349 | reinterpret_cast<const jlong*>(buf)); |
| 3350 | break; |
| 3351 | case Primitive::kPrimFloat: |
| 3352 | baseEnv(env)->SetFloatArrayRegion(env, down_cast<jfloatArray>(array), start, len, |
| 3353 | reinterpret_cast<const jfloat*>(buf)); |
| 3354 | break; |
| 3355 | case Primitive::kPrimDouble: |
| 3356 | baseEnv(env)->SetDoubleArrayRegion(env, down_cast<jdoubleArray>(array), start, len, |
| 3357 | reinterpret_cast<const jdouble*>(buf)); |
| 3358 | break; |
| 3359 | default: |
| 3360 | LOG(FATAL) << "Unexpected primitive type: " << type; |
| 3361 | } |
| 3362 | JniValueType result; |
| 3363 | result.V = nullptr; |
| 3364 | sc.Check(soa, false, "V", &result); |
| 3365 | } |
| 3366 | } |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 3367 | }; |
| 3368 | |
| 3369 | const JNINativeInterface gCheckNativeInterface = { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 3370 | nullptr, // reserved0. |
| 3371 | nullptr, // reserved1. |
| 3372 | nullptr, // reserved2. |
| 3373 | nullptr, // reserved3. |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 3374 | CheckJNI::GetVersion, |
| 3375 | CheckJNI::DefineClass, |
| 3376 | CheckJNI::FindClass, |
| 3377 | CheckJNI::FromReflectedMethod, |
| 3378 | CheckJNI::FromReflectedField, |
| 3379 | CheckJNI::ToReflectedMethod, |
| 3380 | CheckJNI::GetSuperclass, |
| 3381 | CheckJNI::IsAssignableFrom, |
| 3382 | CheckJNI::ToReflectedField, |
| 3383 | CheckJNI::Throw, |
| 3384 | CheckJNI::ThrowNew, |
| 3385 | CheckJNI::ExceptionOccurred, |
| 3386 | CheckJNI::ExceptionDescribe, |
| 3387 | CheckJNI::ExceptionClear, |
| 3388 | CheckJNI::FatalError, |
| 3389 | CheckJNI::PushLocalFrame, |
| 3390 | CheckJNI::PopLocalFrame, |
| 3391 | CheckJNI::NewGlobalRef, |
| 3392 | CheckJNI::DeleteGlobalRef, |
| 3393 | CheckJNI::DeleteLocalRef, |
| 3394 | CheckJNI::IsSameObject, |
| 3395 | CheckJNI::NewLocalRef, |
| 3396 | CheckJNI::EnsureLocalCapacity, |
| 3397 | CheckJNI::AllocObject, |
| 3398 | CheckJNI::NewObject, |
| 3399 | CheckJNI::NewObjectV, |
| 3400 | CheckJNI::NewObjectA, |
| 3401 | CheckJNI::GetObjectClass, |
| 3402 | CheckJNI::IsInstanceOf, |
| 3403 | CheckJNI::GetMethodID, |
| 3404 | CheckJNI::CallObjectMethod, |
| 3405 | CheckJNI::CallObjectMethodV, |
| 3406 | CheckJNI::CallObjectMethodA, |
| 3407 | CheckJNI::CallBooleanMethod, |
| 3408 | CheckJNI::CallBooleanMethodV, |
| 3409 | CheckJNI::CallBooleanMethodA, |
| 3410 | CheckJNI::CallByteMethod, |
| 3411 | CheckJNI::CallByteMethodV, |
| 3412 | CheckJNI::CallByteMethodA, |
| 3413 | CheckJNI::CallCharMethod, |
| 3414 | CheckJNI::CallCharMethodV, |
| 3415 | CheckJNI::CallCharMethodA, |
| 3416 | CheckJNI::CallShortMethod, |
| 3417 | CheckJNI::CallShortMethodV, |
| 3418 | CheckJNI::CallShortMethodA, |
| 3419 | CheckJNI::CallIntMethod, |
| 3420 | CheckJNI::CallIntMethodV, |
| 3421 | CheckJNI::CallIntMethodA, |
| 3422 | CheckJNI::CallLongMethod, |
| 3423 | CheckJNI::CallLongMethodV, |
| 3424 | CheckJNI::CallLongMethodA, |
| 3425 | CheckJNI::CallFloatMethod, |
| 3426 | CheckJNI::CallFloatMethodV, |
| 3427 | CheckJNI::CallFloatMethodA, |
| 3428 | CheckJNI::CallDoubleMethod, |
| 3429 | CheckJNI::CallDoubleMethodV, |
| 3430 | CheckJNI::CallDoubleMethodA, |
| 3431 | CheckJNI::CallVoidMethod, |
| 3432 | CheckJNI::CallVoidMethodV, |
| 3433 | CheckJNI::CallVoidMethodA, |
| 3434 | CheckJNI::CallNonvirtualObjectMethod, |
| 3435 | CheckJNI::CallNonvirtualObjectMethodV, |
| 3436 | CheckJNI::CallNonvirtualObjectMethodA, |
| 3437 | CheckJNI::CallNonvirtualBooleanMethod, |
| 3438 | CheckJNI::CallNonvirtualBooleanMethodV, |
| 3439 | CheckJNI::CallNonvirtualBooleanMethodA, |
| 3440 | CheckJNI::CallNonvirtualByteMethod, |
| 3441 | CheckJNI::CallNonvirtualByteMethodV, |
| 3442 | CheckJNI::CallNonvirtualByteMethodA, |
| 3443 | CheckJNI::CallNonvirtualCharMethod, |
| 3444 | CheckJNI::CallNonvirtualCharMethodV, |
| 3445 | CheckJNI::CallNonvirtualCharMethodA, |
| 3446 | CheckJNI::CallNonvirtualShortMethod, |
| 3447 | CheckJNI::CallNonvirtualShortMethodV, |
| 3448 | CheckJNI::CallNonvirtualShortMethodA, |
| 3449 | CheckJNI::CallNonvirtualIntMethod, |
| 3450 | CheckJNI::CallNonvirtualIntMethodV, |
| 3451 | CheckJNI::CallNonvirtualIntMethodA, |
| 3452 | CheckJNI::CallNonvirtualLongMethod, |
| 3453 | CheckJNI::CallNonvirtualLongMethodV, |
| 3454 | CheckJNI::CallNonvirtualLongMethodA, |
| 3455 | CheckJNI::CallNonvirtualFloatMethod, |
| 3456 | CheckJNI::CallNonvirtualFloatMethodV, |
| 3457 | CheckJNI::CallNonvirtualFloatMethodA, |
| 3458 | CheckJNI::CallNonvirtualDoubleMethod, |
| 3459 | CheckJNI::CallNonvirtualDoubleMethodV, |
| 3460 | CheckJNI::CallNonvirtualDoubleMethodA, |
| 3461 | CheckJNI::CallNonvirtualVoidMethod, |
| 3462 | CheckJNI::CallNonvirtualVoidMethodV, |
| 3463 | CheckJNI::CallNonvirtualVoidMethodA, |
| 3464 | CheckJNI::GetFieldID, |
| 3465 | CheckJNI::GetObjectField, |
| 3466 | CheckJNI::GetBooleanField, |
| 3467 | CheckJNI::GetByteField, |
| 3468 | CheckJNI::GetCharField, |
| 3469 | CheckJNI::GetShortField, |
| 3470 | CheckJNI::GetIntField, |
| 3471 | CheckJNI::GetLongField, |
| 3472 | CheckJNI::GetFloatField, |
| 3473 | CheckJNI::GetDoubleField, |
| 3474 | CheckJNI::SetObjectField, |
| 3475 | CheckJNI::SetBooleanField, |
| 3476 | CheckJNI::SetByteField, |
| 3477 | CheckJNI::SetCharField, |
| 3478 | CheckJNI::SetShortField, |
| 3479 | CheckJNI::SetIntField, |
| 3480 | CheckJNI::SetLongField, |
| 3481 | CheckJNI::SetFloatField, |
| 3482 | CheckJNI::SetDoubleField, |
| 3483 | CheckJNI::GetStaticMethodID, |
| 3484 | CheckJNI::CallStaticObjectMethod, |
| 3485 | CheckJNI::CallStaticObjectMethodV, |
| 3486 | CheckJNI::CallStaticObjectMethodA, |
| 3487 | CheckJNI::CallStaticBooleanMethod, |
| 3488 | CheckJNI::CallStaticBooleanMethodV, |
| 3489 | CheckJNI::CallStaticBooleanMethodA, |
| 3490 | CheckJNI::CallStaticByteMethod, |
| 3491 | CheckJNI::CallStaticByteMethodV, |
| 3492 | CheckJNI::CallStaticByteMethodA, |
| 3493 | CheckJNI::CallStaticCharMethod, |
| 3494 | CheckJNI::CallStaticCharMethodV, |
| 3495 | CheckJNI::CallStaticCharMethodA, |
| 3496 | CheckJNI::CallStaticShortMethod, |
| 3497 | CheckJNI::CallStaticShortMethodV, |
| 3498 | CheckJNI::CallStaticShortMethodA, |
| 3499 | CheckJNI::CallStaticIntMethod, |
| 3500 | CheckJNI::CallStaticIntMethodV, |
| 3501 | CheckJNI::CallStaticIntMethodA, |
| 3502 | CheckJNI::CallStaticLongMethod, |
| 3503 | CheckJNI::CallStaticLongMethodV, |
| 3504 | CheckJNI::CallStaticLongMethodA, |
| 3505 | CheckJNI::CallStaticFloatMethod, |
| 3506 | CheckJNI::CallStaticFloatMethodV, |
| 3507 | CheckJNI::CallStaticFloatMethodA, |
| 3508 | CheckJNI::CallStaticDoubleMethod, |
| 3509 | CheckJNI::CallStaticDoubleMethodV, |
| 3510 | CheckJNI::CallStaticDoubleMethodA, |
| 3511 | CheckJNI::CallStaticVoidMethod, |
| 3512 | CheckJNI::CallStaticVoidMethodV, |
| 3513 | CheckJNI::CallStaticVoidMethodA, |
| 3514 | CheckJNI::GetStaticFieldID, |
| 3515 | CheckJNI::GetStaticObjectField, |
| 3516 | CheckJNI::GetStaticBooleanField, |
| 3517 | CheckJNI::GetStaticByteField, |
| 3518 | CheckJNI::GetStaticCharField, |
| 3519 | CheckJNI::GetStaticShortField, |
| 3520 | CheckJNI::GetStaticIntField, |
| 3521 | CheckJNI::GetStaticLongField, |
| 3522 | CheckJNI::GetStaticFloatField, |
| 3523 | CheckJNI::GetStaticDoubleField, |
| 3524 | CheckJNI::SetStaticObjectField, |
| 3525 | CheckJNI::SetStaticBooleanField, |
| 3526 | CheckJNI::SetStaticByteField, |
| 3527 | CheckJNI::SetStaticCharField, |
| 3528 | CheckJNI::SetStaticShortField, |
| 3529 | CheckJNI::SetStaticIntField, |
| 3530 | CheckJNI::SetStaticLongField, |
| 3531 | CheckJNI::SetStaticFloatField, |
| 3532 | CheckJNI::SetStaticDoubleField, |
| 3533 | CheckJNI::NewString, |
| 3534 | CheckJNI::GetStringLength, |
| 3535 | CheckJNI::GetStringChars, |
| 3536 | CheckJNI::ReleaseStringChars, |
| 3537 | CheckJNI::NewStringUTF, |
| 3538 | CheckJNI::GetStringUTFLength, |
| 3539 | CheckJNI::GetStringUTFChars, |
| 3540 | CheckJNI::ReleaseStringUTFChars, |
| 3541 | CheckJNI::GetArrayLength, |
| 3542 | CheckJNI::NewObjectArray, |
| 3543 | CheckJNI::GetObjectArrayElement, |
| 3544 | CheckJNI::SetObjectArrayElement, |
| 3545 | CheckJNI::NewBooleanArray, |
| 3546 | CheckJNI::NewByteArray, |
| 3547 | CheckJNI::NewCharArray, |
| 3548 | CheckJNI::NewShortArray, |
| 3549 | CheckJNI::NewIntArray, |
| 3550 | CheckJNI::NewLongArray, |
| 3551 | CheckJNI::NewFloatArray, |
| 3552 | CheckJNI::NewDoubleArray, |
| 3553 | CheckJNI::GetBooleanArrayElements, |
| 3554 | CheckJNI::GetByteArrayElements, |
| 3555 | CheckJNI::GetCharArrayElements, |
| 3556 | CheckJNI::GetShortArrayElements, |
| 3557 | CheckJNI::GetIntArrayElements, |
| 3558 | CheckJNI::GetLongArrayElements, |
| 3559 | CheckJNI::GetFloatArrayElements, |
| 3560 | CheckJNI::GetDoubleArrayElements, |
| 3561 | CheckJNI::ReleaseBooleanArrayElements, |
| 3562 | CheckJNI::ReleaseByteArrayElements, |
| 3563 | CheckJNI::ReleaseCharArrayElements, |
| 3564 | CheckJNI::ReleaseShortArrayElements, |
| 3565 | CheckJNI::ReleaseIntArrayElements, |
| 3566 | CheckJNI::ReleaseLongArrayElements, |
| 3567 | CheckJNI::ReleaseFloatArrayElements, |
| 3568 | CheckJNI::ReleaseDoubleArrayElements, |
| 3569 | CheckJNI::GetBooleanArrayRegion, |
| 3570 | CheckJNI::GetByteArrayRegion, |
| 3571 | CheckJNI::GetCharArrayRegion, |
| 3572 | CheckJNI::GetShortArrayRegion, |
| 3573 | CheckJNI::GetIntArrayRegion, |
| 3574 | CheckJNI::GetLongArrayRegion, |
| 3575 | CheckJNI::GetFloatArrayRegion, |
| 3576 | CheckJNI::GetDoubleArrayRegion, |
| 3577 | CheckJNI::SetBooleanArrayRegion, |
| 3578 | CheckJNI::SetByteArrayRegion, |
| 3579 | CheckJNI::SetCharArrayRegion, |
| 3580 | CheckJNI::SetShortArrayRegion, |
| 3581 | CheckJNI::SetIntArrayRegion, |
| 3582 | CheckJNI::SetLongArrayRegion, |
| 3583 | CheckJNI::SetFloatArrayRegion, |
| 3584 | CheckJNI::SetDoubleArrayRegion, |
| 3585 | CheckJNI::RegisterNatives, |
| 3586 | CheckJNI::UnregisterNatives, |
| 3587 | CheckJNI::MonitorEnter, |
| 3588 | CheckJNI::MonitorExit, |
| 3589 | CheckJNI::GetJavaVM, |
| 3590 | CheckJNI::GetStringRegion, |
| 3591 | CheckJNI::GetStringUTFRegion, |
| 3592 | CheckJNI::GetPrimitiveArrayCritical, |
| 3593 | CheckJNI::ReleasePrimitiveArrayCritical, |
| 3594 | CheckJNI::GetStringCritical, |
| 3595 | CheckJNI::ReleaseStringCritical, |
| 3596 | CheckJNI::NewWeakGlobalRef, |
| 3597 | CheckJNI::DeleteWeakGlobalRef, |
| 3598 | CheckJNI::ExceptionCheck, |
| 3599 | CheckJNI::NewDirectByteBuffer, |
| 3600 | CheckJNI::GetDirectBufferAddress, |
| 3601 | CheckJNI::GetDirectBufferCapacity, |
| 3602 | CheckJNI::GetObjectRefType, |
| 3603 | }; |
| 3604 | |
| 3605 | const JNINativeInterface* GetCheckJniNativeInterface() { |
| 3606 | return &gCheckNativeInterface; |
| 3607 | } |
| 3608 | |
| 3609 | class CheckJII { |
Elliott Hughes | ba8eee1 | 2012-01-24 20:25:24 -0800 | [diff] [blame] | 3610 | public: |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 3611 | static jint DestroyJavaVM(JavaVM* vm) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 3612 | ScopedCheck sc(kFlag_Invocation, __FUNCTION__, false); |
| 3613 | JniValueType args[1] = {{.v = vm}}; |
| 3614 | sc.CheckNonHeap(reinterpret_cast<JavaVMExt*>(vm), true, "v", args); |
| 3615 | JniValueType result; |
| 3616 | result.i = BaseVm(vm)->DestroyJavaVM(vm); |
| 3617 | sc.CheckNonHeap(reinterpret_cast<JavaVMExt*>(vm), false, "i", &result); |
| 3618 | return result.i; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 3619 | } |
| 3620 | |
| 3621 | static jint AttachCurrentThread(JavaVM* vm, JNIEnv** p_env, void* thr_args) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 3622 | ScopedCheck sc(kFlag_Invocation, __FUNCTION__); |
| 3623 | JniValueType args[3] = {{.v = vm}, {.p = p_env}, {.p = thr_args}}; |
| 3624 | sc.CheckNonHeap(reinterpret_cast<JavaVMExt*>(vm), true, "vpp", args); |
| 3625 | JniValueType result; |
| 3626 | result.i = BaseVm(vm)->AttachCurrentThread(vm, p_env, thr_args); |
| 3627 | sc.CheckNonHeap(reinterpret_cast<JavaVMExt*>(vm), false, "i", &result); |
| 3628 | return result.i; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 3629 | } |
| 3630 | |
| 3631 | static jint AttachCurrentThreadAsDaemon(JavaVM* vm, JNIEnv** p_env, void* thr_args) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 3632 | ScopedCheck sc(kFlag_Invocation, __FUNCTION__); |
| 3633 | JniValueType args[3] = {{.v = vm}, {.p = p_env}, {.p = thr_args}}; |
| 3634 | sc.CheckNonHeap(reinterpret_cast<JavaVMExt*>(vm), true, "vpp", args); |
| 3635 | JniValueType result; |
| 3636 | result.i = BaseVm(vm)->AttachCurrentThreadAsDaemon(vm, p_env, thr_args); |
| 3637 | sc.CheckNonHeap(reinterpret_cast<JavaVMExt*>(vm), false, "i", &result); |
| 3638 | return result.i; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 3639 | } |
| 3640 | |
| 3641 | static jint DetachCurrentThread(JavaVM* vm) { |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 3642 | ScopedCheck sc(kFlag_Invocation, __FUNCTION__); |
| 3643 | JniValueType args[1] = {{.v = vm}}; |
| 3644 | sc.CheckNonHeap(reinterpret_cast<JavaVMExt*>(vm), true, "v", args); |
| 3645 | JniValueType result; |
| 3646 | result.i = BaseVm(vm)->DetachCurrentThread(vm); |
| 3647 | sc.CheckNonHeap(reinterpret_cast<JavaVMExt*>(vm), false, "i", &result); |
| 3648 | return result.i; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 3649 | } |
| 3650 | |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 3651 | static jint GetEnv(JavaVM* vm, void** p_env, jint version) { |
| 3652 | ScopedCheck sc(kFlag_Invocation, __FUNCTION__); |
| 3653 | JniValueType args[3] = {{.v = vm}, {.p = p_env}, {.I = version}}; |
| 3654 | sc.CheckNonHeap(reinterpret_cast<JavaVMExt*>(vm), true, "vpI", args); |
| 3655 | JniValueType result; |
| 3656 | result.i = BaseVm(vm)->GetEnv(vm, p_env, version); |
| 3657 | sc.CheckNonHeap(reinterpret_cast<JavaVMExt*>(vm), false, "i", &result); |
| 3658 | return result.i; |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 3659 | } |
| 3660 | |
| 3661 | private: |
Ian Rogers | 68d8b42 | 2014-07-17 11:09:10 -0700 | [diff] [blame] | 3662 | static const JNIInvokeInterface* BaseVm(JavaVM* vm) { |
| 3663 | return reinterpret_cast<JavaVMExt*>(vm)->GetUncheckedFunctions(); |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 3664 | } |
| 3665 | }; |
| 3666 | |
| 3667 | const JNIInvokeInterface gCheckInvokeInterface = { |
Ian Rogers | ef7d42f | 2014-01-06 12:55:46 -0800 | [diff] [blame] | 3668 | nullptr, // reserved0 |
| 3669 | nullptr, // reserved1 |
| 3670 | nullptr, // reserved2 |
Elliott Hughes | a250199 | 2011-08-26 19:39:54 -0700 | [diff] [blame] | 3671 | CheckJII::DestroyJavaVM, |
| 3672 | CheckJII::AttachCurrentThread, |
| 3673 | CheckJII::DetachCurrentThread, |
| 3674 | CheckJII::GetEnv, |
| 3675 | CheckJII::AttachCurrentThreadAsDaemon |
| 3676 | }; |
| 3677 | |
| 3678 | const JNIInvokeInterface* GetCheckJniInvokeInterface() { |
| 3679 | return &gCheckInvokeInterface; |
| 3680 | } |
| 3681 | |
| 3682 | } // namespace art |