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1 /*
2  * Copyright (C) 2011 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 <log/log.h>
20 
21 #include <cstdarg>
22 #include <memory>
23 #include <utility>
24 
25 #include "art_field-inl.h"
26 #include "art_method-alloc-inl.h"
27 #include "base/allocator.h"
28 #include "base/atomic.h"
29 #include "base/casts.h"
30 #include "base/file_utils.h"
31 #include "base/logging.h"  // For VLOG.
32 #include "base/mutex.h"
33 #include "base/pointer_size.h"
34 #include "base/safe_map.h"
35 #include "base/stl_util.h"
36 #include "class_linker-inl.h"
37 #include "class_root-inl.h"
38 #include "dex/dex_file-inl.h"
39 #include "dex/utf-inl.h"
40 #include "fault_handler.h"
41 #include "gc/accounting/card_table-inl.h"
42 #include "gc_root.h"
43 #include "handle_scope.h"
44 #include "hidden_api.h"
45 #include "indirect_reference_table-inl.h"
46 #include "instrumentation.h"
47 #include "interpreter/interpreter.h"
48 #include "java_vm_ext.h"
49 #include "jni_env_ext.h"
50 #include "jvalue-inl.h"
51 #include "mirror/class-alloc-inl.h"
52 #include "mirror/class-inl.h"
53 #include "mirror/class_loader.h"
54 #include "mirror/dex_cache-inl.h"
55 #include "mirror/field.h"
56 #include "mirror/method.h"
57 #include "mirror/object-inl.h"
58 #include "mirror/object_array-alloc-inl.h"
59 #include "mirror/object_array-inl.h"
60 #include "mirror/string-alloc-inl.h"
61 #include "mirror/string-inl.h"
62 #include "mirror/throwable.h"
63 #include "nativebridge/native_bridge.h"
64 #include "nativehelper/scoped_local_ref.h"
65 #include "nativeloader/native_loader.h"
66 #include "parsed_options.h"
67 #include "reflection.h"
68 #include "runtime.h"
69 #include "scoped_thread_state_change-inl.h"
70 #include "thread.h"
71 #include "well_known_classes-inl.h"
72 
73 namespace art HIDDEN {
74 
75 namespace {
76 
77 // Frees the given va_list upon destruction.
78 // This also guards the returns from inside of the CHECK_NON_NULL_ARGUMENTs.
79 struct ScopedVAArgs {
ScopedVAArgsart::__anona8539edf0111::ScopedVAArgs80   explicit ScopedVAArgs(va_list* args): args(args) {}
81   ScopedVAArgs(const ScopedVAArgs&) = delete;
82   ScopedVAArgs(ScopedVAArgs&&) = delete;
~ScopedVAArgsart::__anona8539edf0111::ScopedVAArgs83   ~ScopedVAArgs() { va_end(*args); }
84 
85  private:
86   va_list* args;
87 };
88 
89 constexpr char kBadUtf8ReplacementChar = '?';
90 
91 // This is a modified version of `CountModifiedUtf8Chars()` from utf.cc,
92 // with extra checks and different output options.
93 //
94 // The `good` functor can process valid characters.
95 // The `bad` functor is called when we find an invalid character.
96 //
97 // Returns the number of UTF-16 characters.
98 template <typename GoodFunc, typename BadFunc>
VisitUtf8Chars(const char * utf8,size_t byte_count,GoodFunc good,BadFunc bad)99 size_t VisitUtf8Chars(const char* utf8, size_t byte_count, GoodFunc good, BadFunc bad) {
100   DCHECK_LE(byte_count, strlen(utf8));
101   size_t len = 0;
102   const char* end = utf8 + byte_count;
103   while (utf8 != end) {
104     int ic = *utf8;
105     if (LIKELY((ic & 0x80) == 0)) {
106       // One-byte encoding.
107       good(utf8, 1u);
108       utf8 += 1u;
109       len += 1u;
110       continue;
111     }
112     // Note: We do not check whether the bit 0x40 is correctly set in the leading byte of
113     // a multi-byte sequence. Nor do we verify the top two bits of continuation characters.
114     if ((ic & 0x20) == 0) {
115       // Two-byte encoding.
116       if (static_cast<size_t>(end - utf8) < 2u) {
117         bad();
118         return len + 1u;  // Reached end of sequence.
119       }
120       good(utf8, 2u);
121       utf8 += 2u;
122       len += 1u;
123       continue;
124     }
125     if ((ic & 0x10) == 0) {
126       // Three-byte encoding.
127       if (static_cast<size_t>(end - utf8) < 3u) {
128         bad();
129         return len + 1u;  // Reached end of sequence
130       }
131       good(utf8, 3u);
132       utf8 += 3u;
133       len += 1u;
134       continue;
135     }
136 
137     // Four-byte encoding: needs to be converted into a surrogate pair.
138     if (static_cast<size_t>(end - utf8) < 4u) {
139       bad();
140       return len + 1u;  // Reached end of sequence.
141     }
142     good(utf8, 4u);
143     utf8 += 4u;
144     len += 2u;
145   }
146   return len;
147 }
148 
149 ALWAYS_INLINE
DecodeModifiedUtf8Character(const char * ptr,size_t length)150 static inline uint16_t DecodeModifiedUtf8Character(const char* ptr, size_t length) {
151   switch (length) {
152     case 1:
153       return ptr[0];
154     case 2:
155       return ((ptr[0] & 0x1fu) << 6) | (ptr[1] & 0x3fu);
156     case 3:
157       return ((ptr[0] & 0x0fu) << 12) | ((ptr[1] & 0x3fu) << 6) | (ptr[2] & 0x3fu);
158     default:
159       LOG(FATAL) << "UNREACHABLE";  // 4-byte sequences are not valid Modified UTF-8.
160       UNREACHABLE();
161   }
162 }
163 
164 class NewStringUTFVisitor {
165  public:
NewStringUTFVisitor(const char * utf,size_t utf8_length,int32_t count,bool has_bad_char)166   NewStringUTFVisitor(const char* utf, size_t utf8_length, int32_t count, bool has_bad_char)
167       : utf_(utf), utf8_length_(utf8_length), count_(count), has_bad_char_(has_bad_char) {}
168 
operator ()(ObjPtr<mirror::Object> obj,size_t usable_size) const169   void operator()(ObjPtr<mirror::Object> obj, [[maybe_unused]] size_t usable_size) const
170       REQUIRES_SHARED(Locks::mutator_lock_) {
171     // Avoid AsString as object is not yet in live bitmap or allocation stack.
172     ObjPtr<mirror::String> string = ObjPtr<mirror::String>::DownCast(obj);
173     string->SetCount(count_);
174     DCHECK_IMPLIES(string->IsCompressed(), mirror::kUseStringCompression);
175     if (string->IsCompressed()) {
176       uint8_t* value_compressed = string->GetValueCompressed();
177       auto good = [&](const char* ptr, size_t length) {
178         uint16_t c = DecodeModifiedUtf8Character(ptr, length);
179         DCHECK(mirror::String::IsASCII(c));
180         *value_compressed++ = dchecked_integral_cast<uint8_t>(c);
181       };
182       auto bad = [&]() {
183         DCHECK(has_bad_char_);
184         *value_compressed++ = kBadUtf8ReplacementChar;
185       };
186       VisitUtf8Chars(utf_, utf8_length_, good, bad);
187     } else {
188       // Uncompressed.
189       uint16_t* value = string->GetValue();
190       auto good = [&](const char* ptr, size_t length) {
191         if (length != 4u) {
192           *value++ = DecodeModifiedUtf8Character(ptr, length);
193         } else {
194           const uint32_t code_point = ((ptr[0] & 0x0fu) << 18) |
195                                       ((ptr[1] & 0x3fu) << 12) |
196                                       ((ptr[2] & 0x3fu) << 6) |
197                                       (ptr[3] & 0x3fu);
198           // TODO: What do we do about values outside the range [U+10000, U+10FFFF]?
199           // The spec says they're invalid but nobody appears to check for them.
200           const uint32_t code_point_bits = code_point - 0x10000u;
201           *value++ = 0xd800u | ((code_point_bits >> 10) & 0x3ffu);
202           *value++ = 0xdc00u | (code_point_bits & 0x3ffu);
203         }
204       };
205       auto bad = [&]() {
206         DCHECK(has_bad_char_);
207         *value++ = kBadUtf8ReplacementChar;
208       };
209       VisitUtf8Chars(utf_, utf8_length_, good, bad);
210       DCHECK_IMPLIES(mirror::kUseStringCompression,
211                      !mirror::String::AllASCII(string->GetValue(), string->GetLength()));
212     }
213   }
214 
215  private:
216   const char* utf_;
217   size_t utf8_length_;
218   const int32_t count_;
219   bool has_bad_char_;
220 };
221 
222 // The JNI specification says that `GetStringUTFLength()`, `GetStringUTFChars()`
223 // and `GetStringUTFRegion()` should emit the Modified UTF-8 encoding.
224 // However, we have been emitting 4-byte UTF-8 sequences for several years now
225 // and changing that would risk breaking a lot of binary interfaces.
226 constexpr bool kUtfUseShortZero = false;
227 constexpr bool kUtfUse4ByteSequence = true;  // This is against the JNI spec.
228 constexpr bool kUtfReplaceBadSurrogates = false;
229 
GetUncompressedStringUTFLength(const uint16_t * chars,size_t length)230 jsize GetUncompressedStringUTFLength(const uint16_t* chars, size_t length) {
231   jsize byte_count = 0;
232   ConvertUtf16ToUtf8<kUtfUseShortZero, kUtfUse4ByteSequence, kUtfReplaceBadSurrogates>(
233       chars, length, [&]([[maybe_unused]] char c) { ++byte_count; });
234   return byte_count;
235 }
236 
GetUncompressedStringUTFChars(const uint16_t * chars,size_t length,char * dest)237 char* GetUncompressedStringUTFChars(const uint16_t* chars, size_t length, char* dest) {
238   ConvertUtf16ToUtf8<kUtfUseShortZero, kUtfUse4ByteSequence, kUtfReplaceBadSurrogates>(
239       chars, length, [&](char c) { *dest++ = c; });
240   return dest;
241 }
242 
243 }  // namespace
244 
245 // Consider turning this on when there is errors which could be related to JNI array copies such as
246 // things not rendering correctly. E.g. b/16858794
247 static constexpr bool kWarnJniAbort = false;
248 
GetJniAccessContext(Thread * self)249 static hiddenapi::AccessContext GetJniAccessContext(Thread* self)
250     REQUIRES_SHARED(Locks::mutator_lock_) {
251   // Construct AccessContext from the first calling class on stack.
252   // If the calling class cannot be determined, e.g. unattached threads,
253   // we conservatively assume the caller is trusted.
254   ObjPtr<mirror::Class> caller = GetCallingClass(self, /* num_frames= */ 1);
255   return caller.IsNull() ? hiddenapi::AccessContext(/* is_trusted= */ true)
256                          : hiddenapi::AccessContext(caller);
257 }
258 
259 template<typename T>
ShouldDenyAccessToMember(T * member,Thread * self,hiddenapi::AccessMethod access_kind=hiddenapi::AccessMethod::kJNI)260 ALWAYS_INLINE static bool ShouldDenyAccessToMember(
261     T* member,
262     Thread* self,
263     hiddenapi::AccessMethod access_kind = hiddenapi::AccessMethod::kJNI)
264     REQUIRES_SHARED(Locks::mutator_lock_) {
265   return hiddenapi::ShouldDenyAccessToMember(
266       member,
267       [self]() REQUIRES_SHARED(Locks::mutator_lock_) { return GetJniAccessContext(self); },
268       access_kind);
269 }
270 
271 // Helpers to call instrumentation functions for fields. These take jobjects so we don't need to set
272 // up handles for the rare case where these actually do something. Once these functions return it is
273 // possible there will be a pending exception if the instrumentation happens to throw one.
NotifySetObjectField(ArtField * field,jobject obj,jobject jval)274 static void NotifySetObjectField(ArtField* field, jobject obj, jobject jval)
275     REQUIRES_SHARED(Locks::mutator_lock_) {
276   DCHECK_EQ(field->GetTypeAsPrimitiveType(), Primitive::kPrimNot);
277   instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation();
278   if (UNLIKELY(instrumentation->HasFieldWriteListeners())) {
279     Thread* self = Thread::Current();
280     ArtMethod* cur_method = self->GetCurrentMethod(/*dex_pc=*/ nullptr,
281                                                    /*check_suspended=*/ true,
282                                                    /*abort_on_error=*/ false);
283 
284     if (cur_method == nullptr) {
285       // Set/Get Fields can be issued without a method during runtime startup/teardown. Ignore all
286       // of these changes.
287       return;
288     }
289     DCHECK(cur_method->IsNative());
290     JValue val;
291     val.SetL(self->DecodeJObject(jval));
292     instrumentation->FieldWriteEvent(self,
293                                      self->DecodeJObject(obj),
294                                      cur_method,
295                                      0,  // dex_pc is always 0 since this is a native method.
296                                      field,
297                                      val);
298   }
299 }
300 
NotifySetPrimitiveField(ArtField * field,jobject obj,JValue val)301 static void NotifySetPrimitiveField(ArtField* field, jobject obj, JValue val)
302     REQUIRES_SHARED(Locks::mutator_lock_) {
303   DCHECK_NE(field->GetTypeAsPrimitiveType(), Primitive::kPrimNot);
304   instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation();
305   if (UNLIKELY(instrumentation->HasFieldWriteListeners())) {
306     Thread* self = Thread::Current();
307     ArtMethod* cur_method = self->GetCurrentMethod(/*dex_pc=*/ nullptr,
308                                                    /*check_suspended=*/ true,
309                                                    /*abort_on_error=*/ false);
310 
311     if (cur_method == nullptr) {
312       // Set/Get Fields can be issued without a method during runtime startup/teardown. Ignore all
313       // of these changes.
314       return;
315     }
316     DCHECK(cur_method->IsNative());
317     instrumentation->FieldWriteEvent(self,
318                                      self->DecodeJObject(obj),
319                                      cur_method,
320                                      0,  // dex_pc is always 0 since this is a native method.
321                                      field,
322                                      val);
323   }
324 }
325 
NotifyGetField(ArtField * field,jobject obj)326 static void NotifyGetField(ArtField* field, jobject obj)
327     REQUIRES_SHARED(Locks::mutator_lock_) {
328   instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation();
329   if (UNLIKELY(instrumentation->HasFieldReadListeners())) {
330     Thread* self = Thread::Current();
331     ArtMethod* cur_method = self->GetCurrentMethod(/*dex_pc=*/ nullptr,
332                                                    /*check_suspended=*/ true,
333                                                    /*abort_on_error=*/ false);
334 
335     if (cur_method == nullptr) {
336       // Set/Get Fields can be issued without a method during runtime startup/teardown. Ignore all
337       // of these changes.
338       return;
339     }
340     DCHECK(cur_method->IsNative());
341     instrumentation->FieldReadEvent(self,
342                                     self->DecodeJObject(obj),
343                                     cur_method,
344                                     0,  // dex_pc is always 0 since this is a native method.
345                                     field);
346   }
347 }
348 
349 // Section 12.3.2 of the JNI spec describes JNI class descriptors. They're
350 // separated with slashes but aren't wrapped with "L;" like regular descriptors
351 // (i.e. "a/b/C" rather than "La/b/C;"). Arrays of reference types are an
352 // exception; there the "L;" must be present ("[La/b/C;"). Historically we've
353 // supported names with dots too (such as "a.b.C").
NormalizeJniClassDescriptor(const char * name)354 static std::string NormalizeJniClassDescriptor(const char* name) {
355   std::string result;
356   // Add the missing "L;" if necessary.
357   if (name[0] == '[') {
358     result = name;
359   } else {
360     result += 'L';
361     result += name;
362     result += ';';
363   }
364   // Rewrite '.' as '/' for backwards compatibility.
365   if (result.find('.') != std::string::npos) {
366     LOG(WARNING) << "Call to JNI FindClass with dots in name: "
367                  << "\"" << name << "\"";
368     std::replace(result.begin(), result.end(), '.', '/');
369   }
370   return result;
371 }
372 
ReportInvalidJNINativeMethod(const ScopedObjectAccess & soa,ObjPtr<mirror::Class> c,const char * kind,jint idx)373 static void ReportInvalidJNINativeMethod(const ScopedObjectAccess& soa,
374                                          ObjPtr<mirror::Class> c,
375                                          const char* kind,
376                                          jint idx)
377     REQUIRES_SHARED(Locks::mutator_lock_) {
378   LOG(ERROR)
379       << "Failed to register native method in " << c->PrettyDescriptor()
380       << " in " << c->GetDexCache()->GetLocation()->ToModifiedUtf8()
381       << ": " << kind << " is null at index " << idx;
382   soa.Self()->ThrowNewExceptionF("Ljava/lang/NoSuchMethodError;",
383                                  "%s is null at index %d",
384                                  kind,
385                                  idx);
386 }
387 
388 template<bool kEnableIndexIds>
FindMethodID(ScopedObjectAccess & soa,jclass jni_class,const char * name,const char * sig,bool is_static)389 static jmethodID FindMethodID(ScopedObjectAccess& soa, jclass jni_class,
390                               const char* name, const char* sig, bool is_static)
391     REQUIRES_SHARED(Locks::mutator_lock_) {
392   return jni::EncodeArtMethod<kEnableIndexIds>(FindMethodJNI(soa, jni_class, name, sig, is_static));
393 }
394 
395 template<bool kEnableIndexIds>
GetClassLoader(const ScopedObjectAccess & soa)396 static ObjPtr<mirror::ClassLoader> GetClassLoader(const ScopedObjectAccess& soa)
397     REQUIRES_SHARED(Locks::mutator_lock_) {
398   ArtMethod* method = soa.Self()->GetCurrentMethod(nullptr);
399   // If we are running Runtime.nativeLoad, use the overriding ClassLoader it set.
400   if (method == WellKnownClasses::java_lang_Runtime_nativeLoad) {
401     return soa.Decode<mirror::ClassLoader>(soa.Self()->GetClassLoaderOverride());
402   }
403   // If we have a method, use its ClassLoader for context.
404   if (method != nullptr) {
405     return method->GetDeclaringClass()->GetClassLoader();
406   }
407   // We don't have a method, so try to use the system ClassLoader.
408   ObjPtr<mirror::ClassLoader> class_loader =
409       soa.Decode<mirror::ClassLoader>(Runtime::Current()->GetSystemClassLoader());
410   if (class_loader != nullptr) {
411     return class_loader;
412   }
413   // See if the override ClassLoader is set for gtests.
414   class_loader = soa.Decode<mirror::ClassLoader>(soa.Self()->GetClassLoaderOverride());
415   if (class_loader != nullptr) {
416     // If so, CommonCompilerTest should have marked the runtime as a compiler not compiling an
417     // image.
418     CHECK(Runtime::Current()->IsAotCompiler());
419     CHECK(!Runtime::Current()->IsCompilingBootImage());
420     return class_loader;
421   }
422   // Use the BOOTCLASSPATH.
423   return nullptr;
424 }
425 
426 template<bool kEnableIndexIds>
FindFieldID(const ScopedObjectAccess & soa,jclass jni_class,const char * name,const char * sig,bool is_static)427 static jfieldID FindFieldID(const ScopedObjectAccess& soa, jclass jni_class, const char* name,
428                             const char* sig, bool is_static)
429     REQUIRES_SHARED(Locks::mutator_lock_) {
430   return jni::EncodeArtField<kEnableIndexIds>(FindFieldJNI(soa, jni_class, name, sig, is_static));
431 }
432 
ThrowAIOOBE(ScopedObjectAccess & soa,ObjPtr<mirror::Array> array,jsize start,jsize length,const char * identifier)433 static void ThrowAIOOBE(ScopedObjectAccess& soa,
434                         ObjPtr<mirror::Array> array,
435                         jsize start,
436                         jsize length,
437                         const char* identifier)
438     REQUIRES_SHARED(Locks::mutator_lock_) {
439   std::string type(array->PrettyTypeOf());
440   soa.Self()->ThrowNewExceptionF("Ljava/lang/ArrayIndexOutOfBoundsException;",
441                                  "%s offset=%d length=%d %s.length=%d",
442                                  type.c_str(), start, length, identifier, array->GetLength());
443 }
444 
ThrowSIOOBE(ScopedObjectAccess & soa,jsize start,jsize length,jsize array_length)445 static void ThrowSIOOBE(ScopedObjectAccess& soa, jsize start, jsize length,
446                         jsize array_length)
447     REQUIRES_SHARED(Locks::mutator_lock_) {
448   soa.Self()->ThrowNewExceptionF("Ljava/lang/StringIndexOutOfBoundsException;",
449                                  "offset=%d length=%d string.length()=%d", start, length,
450                                  array_length);
451 }
452 
ThrowNoSuchMethodError(const ScopedObjectAccess & soa,ObjPtr<mirror::Class> c,const char * name,const char * sig,const char * kind)453 static void ThrowNoSuchMethodError(const ScopedObjectAccess& soa,
454                                    ObjPtr<mirror::Class> c,
455                                    const char* name,
456                                    const char* sig,
457                                    const char* kind)
458     REQUIRES_SHARED(Locks::mutator_lock_) {
459   std::string temp;
460   soa.Self()->ThrowNewExceptionF("Ljava/lang/NoSuchMethodError;",
461                                  "no %s method \"%s.%s%s\"",
462                                  kind,
463                                  c->GetDescriptor(&temp),
464                                  name,
465                                  sig);
466 }
467 
EnsureInitialized(Thread * self,ObjPtr<mirror::Class> klass)468 static ObjPtr<mirror::Class> EnsureInitialized(Thread* self, ObjPtr<mirror::Class> klass)
469     REQUIRES_SHARED(Locks::mutator_lock_) {
470   if (LIKELY(klass->IsInitialized())) {
471     return klass;
472   }
473   StackHandleScope<1> hs(self);
474   Handle<mirror::Class> h_klass(hs.NewHandle(klass));
475   if (!Runtime::Current()->GetClassLinker()->EnsureInitialized(self, h_klass, true, true)) {
476     return nullptr;
477   }
478   return h_klass.Get();
479 }
480 
FindMethodJNI(const ScopedObjectAccess & soa,jclass jni_class,const char * name,const char * sig,bool is_static)481 ArtMethod* FindMethodJNI(const ScopedObjectAccess& soa,
482                          jclass jni_class,
483                          const char* name,
484                          const char* sig,
485                          bool is_static) {
486   ObjPtr<mirror::Class> c = EnsureInitialized(soa.Self(), soa.Decode<mirror::Class>(jni_class));
487   if (c == nullptr) {
488     return nullptr;
489   }
490   ArtMethod* method = nullptr;
491   auto pointer_size = Runtime::Current()->GetClassLinker()->GetImagePointerSize();
492   if (c->IsInterface()) {
493     method = c->FindInterfaceMethod(name, sig, pointer_size);
494   } else {
495     method = c->FindClassMethod(name, sig, pointer_size);
496   }
497   if (method != nullptr &&
498       ShouldDenyAccessToMember(method, soa.Self(), hiddenapi::AccessMethod::kCheckWithPolicy)) {
499     // The resolved method that we have found cannot be accessed due to
500     // hiddenapi (typically it is declared up the hierarchy and is not an SDK
501     // method). Try to find an interface method from the implemented interfaces which is
502     // accessible.
503     ArtMethod* itf_method = c->FindAccessibleInterfaceMethod(method, pointer_size);
504     if (itf_method == nullptr) {
505       // No interface method. Call ShouldDenyAccessToMember again but this time
506       // with AccessMethod::kJNI to ensure that an appropriate warning is
507       // logged.
508       ShouldDenyAccessToMember(method, soa.Self(), hiddenapi::AccessMethod::kJNI);
509       method = nullptr;
510     } else {
511       // We found an interface method that is accessible, continue with the resolved method.
512     }
513   }
514   if (method == nullptr || method->IsStatic() != is_static) {
515     ThrowNoSuchMethodError(soa, c, name, sig, is_static ? "static" : "non-static");
516     return nullptr;
517   }
518   return method;
519 }
520 
FindFieldJNI(const ScopedObjectAccess & soa,jclass jni_class,const char * name,const char * sig,bool is_static)521 ArtField* FindFieldJNI(const ScopedObjectAccess& soa,
522                        jclass jni_class,
523                        const char* name,
524                        const char* sig,
525                        bool is_static) {
526   StackHandleScope<2> hs(soa.Self());
527   Handle<mirror::Class> c(
528       hs.NewHandle(EnsureInitialized(soa.Self(), soa.Decode<mirror::Class>(jni_class))));
529   if (c == nullptr) {
530     return nullptr;
531   }
532   ArtField* field = nullptr;
533   ObjPtr<mirror::Class> field_type;
534   ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
535   if (UNLIKELY(sig[0] == '\0')) {
536     DCHECK(field == nullptr);
537   } else if (sig[1] != '\0') {
538     Handle<mirror::ClassLoader> class_loader(hs.NewHandle(c->GetClassLoader()));
539     field_type = class_linker->FindClass(soa.Self(), sig, strlen(sig), class_loader);
540   } else {
541     field_type = class_linker->FindPrimitiveClass(*sig);
542   }
543   if (field_type == nullptr) {
544     // Failed to find type from the signature of the field.
545     DCHECK(sig[0] == '\0' || soa.Self()->IsExceptionPending());
546     StackHandleScope<1> hs2(soa.Self());
547     Handle<mirror::Throwable> cause(hs2.NewHandle(soa.Self()->GetException()));
548     soa.Self()->ClearException();
549     std::string temp;
550     soa.Self()->ThrowNewExceptionF("Ljava/lang/NoSuchFieldError;",
551                                    "no type \"%s\" found and so no field \"%s\" "
552                                    "could be found in class \"%s\" or its superclasses", sig, name,
553                                    c->GetDescriptor(&temp));
554     if (cause != nullptr) {
555       soa.Self()->GetException()->SetCause(cause.Get());
556     }
557     return nullptr;
558   }
559   std::string temp;
560   if (is_static) {
561     field = c->FindStaticField(name, field_type->GetDescriptor(&temp));
562   } else {
563     field = c->FindInstanceField(name, field_type->GetDescriptor(&temp));
564   }
565   if (field != nullptr && ShouldDenyAccessToMember(field, soa.Self())) {
566     field = nullptr;
567   }
568   if (field == nullptr) {
569     soa.Self()->ThrowNewExceptionF("Ljava/lang/NoSuchFieldError;",
570                                    "no \"%s\" field \"%s\" in class \"%s\" or its superclasses",
571                                    sig, name, c->GetDescriptor(&temp));
572     return nullptr;
573   }
574   return field;
575 }
576 
ThrowNewException(JNIEnv * env,jclass exception_class,const char * msg,jobject cause)577 int ThrowNewException(JNIEnv* env, jclass exception_class, const char* msg, jobject cause)
578     REQUIRES(!Locks::mutator_lock_) {
579   // Turn the const char* into a java.lang.String.
580   ScopedLocalRef<jstring> s(env, env->NewStringUTF(msg));
581   if (msg != nullptr && s.get() == nullptr) {
582     return JNI_ERR;
583   }
584 
585   // Choose an appropriate constructor and set up the arguments.
586   jvalue args[2];
587   const char* signature;
588   if (msg == nullptr && cause == nullptr) {
589     signature = "()V";
590   } else if (msg != nullptr && cause == nullptr) {
591     signature = "(Ljava/lang/String;)V";
592     args[0].l = s.get();
593   } else if (msg == nullptr && cause != nullptr) {
594     signature = "(Ljava/lang/Throwable;)V";
595     args[0].l = cause;
596   } else {
597     signature = "(Ljava/lang/String;Ljava/lang/Throwable;)V";
598     args[0].l = s.get();
599     args[1].l = cause;
600   }
601   jmethodID mid = env->GetMethodID(exception_class, "<init>", signature);
602   if (mid == nullptr) {
603     ScopedObjectAccess soa(env);
604     LOG(ERROR) << "No <init>" << signature << " in "
605         << mirror::Class::PrettyClass(soa.Decode<mirror::Class>(exception_class));
606     return JNI_ERR;
607   }
608 
609   ScopedLocalRef<jthrowable> exception(
610       env, reinterpret_cast<jthrowable>(env->NewObjectA(exception_class, mid, args)));
611   if (exception.get() == nullptr) {
612     return JNI_ERR;
613   }
614   ScopedObjectAccess soa(env);
615   soa.Self()->SetException(soa.Decode<mirror::Throwable>(exception.get()));
616   return JNI_OK;
617 }
618 
JavaVmExtFromEnv(JNIEnv * env)619 static JavaVMExt* JavaVmExtFromEnv(JNIEnv* env) {
620   return reinterpret_cast<JNIEnvExt*>(env)->GetVm();
621 }
622 
623 #define CHECK_NON_NULL_ARGUMENT(value) \
624     CHECK_NON_NULL_ARGUMENT_FN_NAME(__FUNCTION__, value, nullptr)
625 
626 #define CHECK_NON_NULL_ARGUMENT_RETURN_VOID(value) \
627     CHECK_NON_NULL_ARGUMENT_FN_NAME(__FUNCTION__, value, )
628 
629 #define CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(value) \
630     CHECK_NON_NULL_ARGUMENT_FN_NAME(__FUNCTION__, value, 0)
631 
632 #define CHECK_NON_NULL_ARGUMENT_RETURN(value, return_val) \
633     CHECK_NON_NULL_ARGUMENT_FN_NAME(__FUNCTION__, value, return_val)
634 
635 #define CHECK_NON_NULL_ARGUMENT_FN_NAME(name, value, return_val) \
636   if (UNLIKELY((value) == nullptr)) { \
637     JavaVmExtFromEnv(env)->JniAbort(name, #value " == null"); \
638     return return_val; \
639   }
640 
641 #define CHECK_NON_NULL_MEMCPY_ARGUMENT(length, value) \
642   if (UNLIKELY((length) != 0 && (value) == nullptr)) { \
643     JavaVmExtFromEnv(env)->JniAbort(__FUNCTION__, #value " == null"); \
644     return; \
645   }
646 
647 template <bool kNative>
FindMethod(ObjPtr<mirror::Class> c,std::string_view name,std::string_view sig)648 static ArtMethod* FindMethod(ObjPtr<mirror::Class> c,
649                              std::string_view name,
650                              std::string_view sig)
651     REQUIRES_SHARED(Locks::mutator_lock_) {
652   auto pointer_size = Runtime::Current()->GetClassLinker()->GetImagePointerSize();
653   for (auto& method : c->GetMethods(pointer_size)) {
654     if (kNative == method.IsNative() && name == method.GetName() && method.GetSignature() == sig) {
655       return &method;
656     }
657   }
658   return nullptr;
659 }
660 
661 template <bool kEnableIndexIds>
662 class JNI {
663  public:
GetVersion(JNIEnv *)664   static jint GetVersion(JNIEnv*) {
665     return JNI_VERSION_1_6;
666   }
667 
DefineClass(JNIEnv *,const char *,jobject,const jbyte *,jsize)668   static jclass DefineClass(JNIEnv*, const char*, jobject, const jbyte*, jsize) {
669     LOG(WARNING) << "JNI DefineClass is not supported";
670     return nullptr;
671   }
672 
FindClass(JNIEnv * env,const char * name)673   static jclass FindClass(JNIEnv* env, const char* name) {
674     CHECK_NON_NULL_ARGUMENT(name);
675     Runtime* runtime = Runtime::Current();
676     ClassLinker* class_linker = runtime->GetClassLinker();
677     std::string descriptor(NormalizeJniClassDescriptor(name));
678     ScopedObjectAccess soa(env);
679     StackHandleScope<1> hs(soa.Self());
680     Handle<mirror::ClassLoader> class_loader = hs.NewHandle(
681         runtime->IsStarted() ? GetClassLoader<kEnableIndexIds>(soa) : nullptr);
682     ObjPtr<mirror::Class> c = class_linker->FindClass(
683         soa.Self(), descriptor.c_str(), descriptor.length(), class_loader);
684     return soa.AddLocalReference<jclass>(c);
685   }
686 
FromReflectedMethod(JNIEnv * env,jobject jlr_method)687   static jmethodID FromReflectedMethod(JNIEnv* env, jobject jlr_method) {
688     CHECK_NON_NULL_ARGUMENT(jlr_method);
689     ScopedObjectAccess soa(env);
690     return jni::EncodeArtMethod<kEnableIndexIds>(ArtMethod::FromReflectedMethod(soa, jlr_method));
691   }
692 
FromReflectedField(JNIEnv * env,jobject jlr_field)693   static jfieldID FromReflectedField(JNIEnv* env, jobject jlr_field) {
694     CHECK_NON_NULL_ARGUMENT(jlr_field);
695     ScopedObjectAccess soa(env);
696     ObjPtr<mirror::Object> obj_field = soa.Decode<mirror::Object>(jlr_field);
697     if (obj_field->GetClass() != GetClassRoot<mirror::Field>()) {
698       // Not even a java.lang.reflect.Field, return null. TODO, is this check necessary?
699       return nullptr;
700     }
701     ObjPtr<mirror::Field> field = ObjPtr<mirror::Field>::DownCast(obj_field);
702     return jni::EncodeArtField<kEnableIndexIds>(field->GetArtField());
703   }
704 
ToReflectedMethod(JNIEnv * env,jclass,jmethodID mid,jboolean)705   static jobject ToReflectedMethod(JNIEnv* env, jclass, jmethodID mid, jboolean) {
706     CHECK_NON_NULL_ARGUMENT(mid);
707     ScopedObjectAccess soa(env);
708     ArtMethod* m = jni::DecodeArtMethod(mid);
709     ObjPtr<mirror::Executable> method;
710     DCHECK_EQ(Runtime::Current()->GetClassLinker()->GetImagePointerSize(), kRuntimePointerSize);
711     if (m->IsConstructor()) {
712       method = mirror::Constructor::CreateFromArtMethod<kRuntimePointerSize>(soa.Self(), m);
713     } else {
714       method = mirror::Method::CreateFromArtMethod<kRuntimePointerSize>(soa.Self(), m);
715     }
716     return soa.AddLocalReference<jobject>(method);
717   }
718 
ToReflectedField(JNIEnv * env,jclass,jfieldID fid,jboolean)719   static jobject ToReflectedField(JNIEnv* env, jclass, jfieldID fid, jboolean) {
720     CHECK_NON_NULL_ARGUMENT(fid);
721     ScopedObjectAccess soa(env);
722     ArtField* f = jni::DecodeArtField(fid);
723     return soa.AddLocalReference<jobject>(
724         mirror::Field::CreateFromArtField(soa.Self(), f, true));
725   }
726 
GetObjectClass(JNIEnv * env,jobject java_object)727   static jclass GetObjectClass(JNIEnv* env, jobject java_object) {
728     CHECK_NON_NULL_ARGUMENT(java_object);
729     ScopedObjectAccess soa(env);
730     ObjPtr<mirror::Object> o = soa.Decode<mirror::Object>(java_object);
731     return soa.AddLocalReference<jclass>(o->GetClass());
732   }
733 
GetSuperclass(JNIEnv * env,jclass java_class)734   static jclass GetSuperclass(JNIEnv* env, jclass java_class) {
735     CHECK_NON_NULL_ARGUMENT(java_class);
736     ScopedObjectAccess soa(env);
737     ObjPtr<mirror::Class> c = soa.Decode<mirror::Class>(java_class);
738     return soa.AddLocalReference<jclass>(c->IsInterface() ? nullptr : c->GetSuperClass());
739   }
740 
741   // Note: java_class1 should be safely castable to java_class2, and
742   // not the other way around.
IsAssignableFrom(JNIEnv * env,jclass java_class1,jclass java_class2)743   static jboolean IsAssignableFrom(JNIEnv* env, jclass java_class1, jclass java_class2) {
744     CHECK_NON_NULL_ARGUMENT_RETURN(java_class1, JNI_FALSE);
745     CHECK_NON_NULL_ARGUMENT_RETURN(java_class2, JNI_FALSE);
746     ScopedObjectAccess soa(env);
747     ObjPtr<mirror::Class> c1 = soa.Decode<mirror::Class>(java_class1);
748     ObjPtr<mirror::Class> c2 = soa.Decode<mirror::Class>(java_class2);
749     return c2->IsAssignableFrom(c1) ? JNI_TRUE : JNI_FALSE;
750   }
751 
IsInstanceOf(JNIEnv * env,jobject jobj,jclass java_class)752   static jboolean IsInstanceOf(JNIEnv* env, jobject jobj, jclass java_class) {
753     CHECK_NON_NULL_ARGUMENT_RETURN(java_class, JNI_FALSE);
754     if (jobj == nullptr) {
755       // Note: JNI is different from regular Java instanceof in this respect
756       return JNI_TRUE;
757     } else {
758       ScopedObjectAccess soa(env);
759       ObjPtr<mirror::Object> obj = soa.Decode<mirror::Object>(jobj);
760       ObjPtr<mirror::Class> c = soa.Decode<mirror::Class>(java_class);
761       return obj->InstanceOf(c) ? JNI_TRUE : JNI_FALSE;
762     }
763   }
764 
Throw(JNIEnv * env,jthrowable java_exception)765   static jint Throw(JNIEnv* env, jthrowable java_exception) {
766     ScopedObjectAccess soa(env);
767     ObjPtr<mirror::Throwable> exception = soa.Decode<mirror::Throwable>(java_exception);
768     if (exception == nullptr) {
769       return JNI_ERR;
770     }
771     soa.Self()->SetException(exception);
772     return JNI_OK;
773   }
774 
ThrowNew(JNIEnv * env,jclass c,const char * msg)775   static jint ThrowNew(JNIEnv* env, jclass c, const char* msg) {
776     CHECK_NON_NULL_ARGUMENT_RETURN(c, JNI_ERR);
777     return ThrowNewException(env, c, msg, nullptr);
778   }
779 
ExceptionCheck(JNIEnv * env)780   static jboolean ExceptionCheck(JNIEnv* env) {
781     return static_cast<JNIEnvExt*>(env)->self_->IsExceptionPending() ? JNI_TRUE : JNI_FALSE;
782   }
783 
ExceptionClear(JNIEnv * env)784   static void ExceptionClear(JNIEnv* env) {
785     ScopedObjectAccess soa(env);
786     soa.Self()->ClearException();
787   }
788 
ExceptionDescribe(JNIEnv * env)789   static void ExceptionDescribe(JNIEnv* env) {
790     ScopedObjectAccess soa(env);
791 
792     // If we have no exception to describe, pass through.
793     if (!soa.Self()->GetException()) {
794       return;
795     }
796 
797     StackHandleScope<1> hs(soa.Self());
798     Handle<mirror::Throwable> old_exception(
799         hs.NewHandle<mirror::Throwable>(soa.Self()->GetException()));
800     soa.Self()->ClearException();
801     ScopedLocalRef<jthrowable> exception(env,
802                                          soa.AddLocalReference<jthrowable>(old_exception.Get()));
803     ScopedLocalRef<jclass> exception_class(env, env->GetObjectClass(exception.get()));
804     jmethodID mid = env->GetMethodID(exception_class.get(), "printStackTrace", "()V");
805     if (mid == nullptr) {
806       LOG(WARNING) << "JNI WARNING: no printStackTrace()V in "
807                    << mirror::Object::PrettyTypeOf(old_exception.Get());
808     } else {
809       env->CallVoidMethod(exception.get(), mid);
810       if (soa.Self()->IsExceptionPending()) {
811         LOG(WARNING) << "JNI WARNING: " << mirror::Object::PrettyTypeOf(soa.Self()->GetException())
812                      << " thrown while calling printStackTrace";
813         soa.Self()->ClearException();
814       }
815     }
816     soa.Self()->SetException(old_exception.Get());
817   }
818 
ExceptionOccurred(JNIEnv * env)819   static jthrowable ExceptionOccurred(JNIEnv* env) {
820     ScopedObjectAccess soa(env);
821     ObjPtr<mirror::Object> exception = soa.Self()->GetException();
822     return soa.AddLocalReference<jthrowable>(exception);
823   }
824 
FatalError(JNIEnv *,const char * msg)825   static void FatalError(JNIEnv*, const char* msg) {
826     LOG(FATAL) << "JNI FatalError called: " << msg;
827   }
828 
PushLocalFrame(JNIEnv * env,jint capacity)829   static jint PushLocalFrame(JNIEnv* env, jint capacity) {
830     // TODO: SOA may not be necessary but I do it to please lock annotations.
831     ScopedObjectAccess soa(env);
832     if (EnsureLocalCapacityInternal(soa, capacity, "PushLocalFrame") != JNI_OK) {
833       return JNI_ERR;
834     }
835     down_cast<JNIEnvExt*>(env)->PushFrame(capacity);
836     return JNI_OK;
837   }
838 
PopLocalFrame(JNIEnv * env,jobject java_survivor)839   static jobject PopLocalFrame(JNIEnv* env, jobject java_survivor) {
840     ScopedObjectAccess soa(env);
841     ObjPtr<mirror::Object> survivor = soa.Decode<mirror::Object>(java_survivor);
842     soa.Env()->PopFrame();
843     return soa.AddLocalReference<jobject>(survivor);
844   }
845 
EnsureLocalCapacity(JNIEnv * env,jint desired_capacity)846   static jint EnsureLocalCapacity(JNIEnv* env, jint desired_capacity) {
847     // TODO: SOA may not be necessary but I do it to please lock annotations.
848     ScopedObjectAccess soa(env);
849     return EnsureLocalCapacityInternal(soa, desired_capacity, "EnsureLocalCapacity");
850   }
851 
NewGlobalRef(JNIEnv * env,jobject obj)852   static jobject NewGlobalRef(JNIEnv* env, jobject obj) {
853     ScopedObjectAccess soa(env);
854     ObjPtr<mirror::Object> decoded_obj = soa.Decode<mirror::Object>(obj);
855     return soa.Vm()->AddGlobalRef(soa.Self(), decoded_obj);
856   }
857 
DeleteGlobalRef(JNIEnv * env,jobject obj)858   static void DeleteGlobalRef(JNIEnv* env, jobject obj) {
859     JavaVMExt* vm = down_cast<JNIEnvExt*>(env)->GetVm();
860     Thread* self = down_cast<JNIEnvExt*>(env)->self_;
861     vm->DeleteGlobalRef(self, obj);
862   }
863 
NewWeakGlobalRef(JNIEnv * env,jobject obj)864   static jweak NewWeakGlobalRef(JNIEnv* env, jobject obj) {
865     ScopedObjectAccess soa(env);
866     ObjPtr<mirror::Object> decoded_obj = soa.Decode<mirror::Object>(obj);
867     return soa.Vm()->AddWeakGlobalRef(soa.Self(), decoded_obj);
868   }
869 
DeleteWeakGlobalRef(JNIEnv * env,jweak obj)870   static void DeleteWeakGlobalRef(JNIEnv* env, jweak obj) {
871     JavaVMExt* vm = down_cast<JNIEnvExt*>(env)->GetVm();
872     Thread* self = down_cast<JNIEnvExt*>(env)->self_;
873     vm->DeleteWeakGlobalRef(self, obj);
874   }
875 
NewLocalRef(JNIEnv * env,jobject obj)876   static jobject NewLocalRef(JNIEnv* env, jobject obj) {
877     ScopedObjectAccess soa(env);
878     ObjPtr<mirror::Object> decoded_obj = soa.Decode<mirror::Object>(obj);
879     // Check for null after decoding the object to handle cleared weak globals.
880     if (decoded_obj == nullptr) {
881       return nullptr;
882     }
883     return soa.AddLocalReference<jobject>(decoded_obj);
884   }
885 
DeleteLocalRef(JNIEnv * env,jobject obj)886   static void DeleteLocalRef(JNIEnv* env, jobject obj) {
887     if (obj == nullptr) {
888       return;
889     }
890     // SOA is only necessary to have exclusion between GC root marking and removing.
891     // We don't want to have the GC attempt to mark a null root if we just removed
892     // it. b/22119403
893     ScopedObjectAccess soa(env);
894     auto* ext_env = down_cast<JNIEnvExt*>(env);
895     if (!ext_env->locals_.Remove(obj)) {
896       // Attempting to delete a local reference that is not in the
897       // topmost local reference frame is a no-op.  DeleteLocalRef returns
898       // void and doesn't throw any exceptions, but we should probably
899       // complain about it so the user will notice that things aren't
900       // going quite the way they expect.
901       LOG(WARNING) << "JNI WARNING: DeleteLocalRef(" << obj << ") "
902                    << "failed to find entry";
903       // Investigating b/228295454: Scudo ERROR: internal map failure (NO MEMORY).
904       soa.Self()->DumpJavaStack(LOG_STREAM(WARNING));
905     }
906   }
907 
IsSameObject(JNIEnv * env,jobject obj1,jobject obj2)908   static jboolean IsSameObject(JNIEnv* env, jobject obj1, jobject obj2) {
909     if (obj1 == obj2) {
910       return JNI_TRUE;
911     } else {
912       ScopedObjectAccess soa(env);
913       return (soa.Decode<mirror::Object>(obj1) == soa.Decode<mirror::Object>(obj2))
914               ? JNI_TRUE : JNI_FALSE;
915     }
916   }
917 
AllocObject(JNIEnv * env,jclass java_class)918   static jobject AllocObject(JNIEnv* env, jclass java_class) {
919     CHECK_NON_NULL_ARGUMENT(java_class);
920     ScopedObjectAccess soa(env);
921     ObjPtr<mirror::Class> c = EnsureInitialized(soa.Self(), soa.Decode<mirror::Class>(java_class));
922     if (c == nullptr) {
923       return nullptr;
924     }
925     if (c->IsStringClass()) {
926       gc::AllocatorType allocator_type = Runtime::Current()->GetHeap()->GetCurrentAllocator();
927       return soa.AddLocalReference<jobject>(
928           mirror::String::AllocEmptyString(soa.Self(), allocator_type));
929     }
930     return soa.AddLocalReference<jobject>(c->AllocObject(soa.Self()));
931   }
932 
NewObject(JNIEnv * env,jclass java_class,jmethodID mid,...)933   static jobject NewObject(JNIEnv* env, jclass java_class, jmethodID mid, ...) {
934     va_list args;
935     va_start(args, mid);
936     ScopedVAArgs free_args_later(&args);
937     CHECK_NON_NULL_ARGUMENT(java_class);
938     CHECK_NON_NULL_ARGUMENT(mid);
939     jobject result = NewObjectV(env, java_class, mid, args);
940     return result;
941   }
942 
NewObjectV(JNIEnv * env,jclass java_class,jmethodID mid,va_list args)943   static jobject NewObjectV(JNIEnv* env, jclass java_class, jmethodID mid, va_list args) {
944     CHECK_NON_NULL_ARGUMENT(java_class);
945     CHECK_NON_NULL_ARGUMENT(mid);
946     ScopedObjectAccess soa(env);
947     ObjPtr<mirror::Class> c = EnsureInitialized(soa.Self(),
948                                                 soa.Decode<mirror::Class>(java_class));
949     if (c == nullptr) {
950       return nullptr;
951     }
952     if (c->IsStringClass()) {
953       // Replace calls to String.<init> with equivalent StringFactory call.
954       jmethodID sf_mid = jni::EncodeArtMethod<kEnableIndexIds>(
955           WellKnownClasses::StringInitToStringFactory(jni::DecodeArtMethod(mid)));
956       return CallStaticObjectMethodV(env, WellKnownClasses::java_lang_StringFactory, sf_mid, args);
957     }
958     ScopedLocalRef<jobject> result(env, soa.AddLocalReference<jobject>(c->AllocObject(soa.Self())));
959     if (result == nullptr) {
960       return nullptr;
961     }
962     CallNonvirtualVoidMethodV(env, result.get(), java_class, mid, args);
963     if (soa.Self()->IsExceptionPending()) {
964       return nullptr;
965     }
966     return result.release();
967   }
968 
NewObjectA(JNIEnv * env,jclass java_class,jmethodID mid,const jvalue * args)969   static jobject NewObjectA(JNIEnv* env, jclass java_class, jmethodID mid, const jvalue* args) {
970     CHECK_NON_NULL_ARGUMENT(java_class);
971     CHECK_NON_NULL_ARGUMENT(mid);
972     ScopedObjectAccess soa(env);
973     ObjPtr<mirror::Class> c = EnsureInitialized(soa.Self(),
974                                                 soa.Decode<mirror::Class>(java_class));
975     if (c == nullptr) {
976       return nullptr;
977     }
978     if (c->IsStringClass()) {
979       // Replace calls to String.<init> with equivalent StringFactory call.
980       jmethodID sf_mid = jni::EncodeArtMethod<kEnableIndexIds>(
981           WellKnownClasses::StringInitToStringFactory(jni::DecodeArtMethod(mid)));
982       return CallStaticObjectMethodA(env, WellKnownClasses::java_lang_StringFactory, sf_mid, args);
983     }
984     ScopedLocalRef<jobject> result(env, soa.AddLocalReference<jobject>(c->AllocObject(soa.Self())));
985     if (result == nullptr) {
986       return nullptr;
987     }
988     CallNonvirtualVoidMethodA(env, result.get(), java_class, mid, args);
989     if (soa.Self()->IsExceptionPending()) {
990       return nullptr;
991     }
992     return result.release();
993   }
994 
GetMethodID(JNIEnv * env,jclass java_class,const char * name,const char * sig)995   static jmethodID GetMethodID(JNIEnv* env, jclass java_class, const char* name, const char* sig) {
996     CHECK_NON_NULL_ARGUMENT(java_class);
997     CHECK_NON_NULL_ARGUMENT(name);
998     CHECK_NON_NULL_ARGUMENT(sig);
999     ScopedObjectAccess soa(env);
1000     return FindMethodID<kEnableIndexIds>(soa, java_class, name, sig, false);
1001   }
1002 
GetStaticMethodID(JNIEnv * env,jclass java_class,const char * name,const char * sig)1003   static jmethodID GetStaticMethodID(JNIEnv* env, jclass java_class, const char* name,
1004                                      const char* sig) {
1005     CHECK_NON_NULL_ARGUMENT(java_class);
1006     CHECK_NON_NULL_ARGUMENT(name);
1007     CHECK_NON_NULL_ARGUMENT(sig);
1008     ScopedObjectAccess soa(env);
1009     return FindMethodID<kEnableIndexIds>(soa, java_class, name, sig, true);
1010   }
1011 
CallObjectMethod(JNIEnv * env,jobject obj,jmethodID mid,...)1012   static jobject CallObjectMethod(JNIEnv* env, jobject obj, jmethodID mid, ...) {
1013     va_list ap;
1014     va_start(ap, mid);
1015     ScopedVAArgs free_args_later(&ap);
1016     CHECK_NON_NULL_ARGUMENT(obj);
1017     CHECK_NON_NULL_ARGUMENT(mid);
1018     ScopedObjectAccess soa(env);
1019     JValue result(InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, ap));
1020     return soa.AddLocalReference<jobject>(result.GetL());
1021   }
1022 
CallObjectMethodV(JNIEnv * env,jobject obj,jmethodID mid,va_list args)1023   static jobject CallObjectMethodV(JNIEnv* env, jobject obj, jmethodID mid, va_list args) {
1024     CHECK_NON_NULL_ARGUMENT(obj);
1025     CHECK_NON_NULL_ARGUMENT(mid);
1026     ScopedObjectAccess soa(env);
1027     JValue result(InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, args));
1028     return soa.AddLocalReference<jobject>(result.GetL());
1029   }
1030 
CallObjectMethodA(JNIEnv * env,jobject obj,jmethodID mid,const jvalue * args)1031   static jobject CallObjectMethodA(JNIEnv* env, jobject obj, jmethodID mid, const jvalue* args) {
1032     CHECK_NON_NULL_ARGUMENT(obj);
1033     CHECK_NON_NULL_ARGUMENT(mid);
1034     ScopedObjectAccess soa(env);
1035     JValue result(InvokeVirtualOrInterfaceWithJValues(soa, obj, mid, args));
1036     return soa.AddLocalReference<jobject>(result.GetL());
1037   }
1038 
CallBooleanMethod(JNIEnv * env,jobject obj,jmethodID mid,...)1039   static jboolean CallBooleanMethod(JNIEnv* env, jobject obj, jmethodID mid, ...) {
1040     va_list ap;
1041     va_start(ap, mid);
1042     ScopedVAArgs free_args_later(&ap);
1043     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1044     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1045     ScopedObjectAccess soa(env);
1046     JValue result(InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, ap));
1047     return result.GetZ();
1048   }
1049 
CallBooleanMethodV(JNIEnv * env,jobject obj,jmethodID mid,va_list args)1050   static jboolean CallBooleanMethodV(JNIEnv* env, jobject obj, jmethodID mid, va_list args) {
1051     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1052     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1053     ScopedObjectAccess soa(env);
1054     return InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, args).GetZ();
1055   }
1056 
CallBooleanMethodA(JNIEnv * env,jobject obj,jmethodID mid,const jvalue * args)1057   static jboolean CallBooleanMethodA(JNIEnv* env, jobject obj, jmethodID mid, const jvalue* args) {
1058     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1059     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1060     ScopedObjectAccess soa(env);
1061     return InvokeVirtualOrInterfaceWithJValues(soa, obj, mid, args).GetZ();
1062   }
1063 
CallByteMethod(JNIEnv * env,jobject obj,jmethodID mid,...)1064   static jbyte CallByteMethod(JNIEnv* env, jobject obj, jmethodID mid, ...) {
1065     va_list ap;
1066     va_start(ap, mid);
1067     ScopedVAArgs free_args_later(&ap);
1068     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1069     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1070     ScopedObjectAccess soa(env);
1071     JValue result(InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, ap));
1072     return result.GetB();
1073   }
1074 
CallByteMethodV(JNIEnv * env,jobject obj,jmethodID mid,va_list args)1075   static jbyte CallByteMethodV(JNIEnv* env, jobject obj, jmethodID mid, va_list args) {
1076     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1077     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1078     ScopedObjectAccess soa(env);
1079     return InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, args).GetB();
1080   }
1081 
CallByteMethodA(JNIEnv * env,jobject obj,jmethodID mid,const jvalue * args)1082   static jbyte CallByteMethodA(JNIEnv* env, jobject obj, jmethodID mid, const jvalue* args) {
1083     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1084     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1085     ScopedObjectAccess soa(env);
1086     return InvokeVirtualOrInterfaceWithJValues(soa, obj, mid, args).GetB();
1087   }
1088 
CallCharMethod(JNIEnv * env,jobject obj,jmethodID mid,...)1089   static jchar CallCharMethod(JNIEnv* env, jobject obj, jmethodID mid, ...) {
1090     va_list ap;
1091     va_start(ap, mid);
1092     ScopedVAArgs free_args_later(&ap);
1093     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1094     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1095     ScopedObjectAccess soa(env);
1096     JValue result(InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, ap));
1097     return result.GetC();
1098   }
1099 
CallCharMethodV(JNIEnv * env,jobject obj,jmethodID mid,va_list args)1100   static jchar CallCharMethodV(JNIEnv* env, jobject obj, jmethodID mid, va_list args) {
1101     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1102     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1103     ScopedObjectAccess soa(env);
1104     return InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, args).GetC();
1105   }
1106 
CallCharMethodA(JNIEnv * env,jobject obj,jmethodID mid,const jvalue * args)1107   static jchar CallCharMethodA(JNIEnv* env, jobject obj, jmethodID mid, const jvalue* args) {
1108     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1109     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1110     ScopedObjectAccess soa(env);
1111     return InvokeVirtualOrInterfaceWithJValues(soa, obj, mid, args).GetC();
1112   }
1113 
CallDoubleMethod(JNIEnv * env,jobject obj,jmethodID mid,...)1114   static jdouble CallDoubleMethod(JNIEnv* env, jobject obj, jmethodID mid, ...) {
1115     va_list ap;
1116     va_start(ap, mid);
1117     ScopedVAArgs free_args_later(&ap);
1118     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1119     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1120     ScopedObjectAccess soa(env);
1121     JValue result(InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, ap));
1122     return result.GetD();
1123   }
1124 
CallDoubleMethodV(JNIEnv * env,jobject obj,jmethodID mid,va_list args)1125   static jdouble CallDoubleMethodV(JNIEnv* env, jobject obj, jmethodID mid, va_list args) {
1126     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1127     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1128     ScopedObjectAccess soa(env);
1129     return InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, args).GetD();
1130   }
1131 
CallDoubleMethodA(JNIEnv * env,jobject obj,jmethodID mid,const jvalue * args)1132   static jdouble CallDoubleMethodA(JNIEnv* env, jobject obj, jmethodID mid, const jvalue* args) {
1133     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1134     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1135     ScopedObjectAccess soa(env);
1136     return InvokeVirtualOrInterfaceWithJValues(soa, obj, mid, args).GetD();
1137   }
1138 
CallFloatMethod(JNIEnv * env,jobject obj,jmethodID mid,...)1139   static jfloat CallFloatMethod(JNIEnv* env, jobject obj, jmethodID mid, ...) {
1140     va_list ap;
1141     va_start(ap, mid);
1142     ScopedVAArgs free_args_later(&ap);
1143     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1144     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1145     ScopedObjectAccess soa(env);
1146     JValue result(InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, ap));
1147     return result.GetF();
1148   }
1149 
CallFloatMethodV(JNIEnv * env,jobject obj,jmethodID mid,va_list args)1150   static jfloat CallFloatMethodV(JNIEnv* env, jobject obj, jmethodID mid, va_list args) {
1151     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1152     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1153     ScopedObjectAccess soa(env);
1154     return InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, args).GetF();
1155   }
1156 
CallFloatMethodA(JNIEnv * env,jobject obj,jmethodID mid,const jvalue * args)1157   static jfloat CallFloatMethodA(JNIEnv* env, jobject obj, jmethodID mid, const jvalue* args) {
1158     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1159     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1160     ScopedObjectAccess soa(env);
1161     return InvokeVirtualOrInterfaceWithJValues(soa, obj, mid, args).GetF();
1162   }
1163 
CallIntMethod(JNIEnv * env,jobject obj,jmethodID mid,...)1164   static jint CallIntMethod(JNIEnv* env, jobject obj, jmethodID mid, ...) {
1165     va_list ap;
1166     va_start(ap, mid);
1167     ScopedVAArgs free_args_later(&ap);
1168     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1169     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1170     ScopedObjectAccess soa(env);
1171     JValue result(InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, ap));
1172     return result.GetI();
1173   }
1174 
CallIntMethodV(JNIEnv * env,jobject obj,jmethodID mid,va_list args)1175   static jint CallIntMethodV(JNIEnv* env, jobject obj, jmethodID mid, va_list args) {
1176     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1177     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1178     ScopedObjectAccess soa(env);
1179     return InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, args).GetI();
1180   }
1181 
CallIntMethodA(JNIEnv * env,jobject obj,jmethodID mid,const jvalue * args)1182   static jint CallIntMethodA(JNIEnv* env, jobject obj, jmethodID mid, const jvalue* args) {
1183     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1184     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1185     ScopedObjectAccess soa(env);
1186     return InvokeVirtualOrInterfaceWithJValues(soa, obj, mid, args).GetI();
1187   }
1188 
CallLongMethod(JNIEnv * env,jobject obj,jmethodID mid,...)1189   static jlong CallLongMethod(JNIEnv* env, jobject obj, jmethodID mid, ...) {
1190     va_list ap;
1191     va_start(ap, mid);
1192     ScopedVAArgs free_args_later(&ap);
1193     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1194     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1195     ScopedObjectAccess soa(env);
1196     JValue result(InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, ap));
1197     return result.GetJ();
1198   }
1199 
CallLongMethodV(JNIEnv * env,jobject obj,jmethodID mid,va_list args)1200   static jlong CallLongMethodV(JNIEnv* env, jobject obj, jmethodID mid, va_list args) {
1201     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1202     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1203     ScopedObjectAccess soa(env);
1204     return InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, args).GetJ();
1205   }
1206 
CallLongMethodA(JNIEnv * env,jobject obj,jmethodID mid,const jvalue * args)1207   static jlong CallLongMethodA(JNIEnv* env, jobject obj, jmethodID mid, const jvalue* args) {
1208     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1209     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1210     ScopedObjectAccess soa(env);
1211     return InvokeVirtualOrInterfaceWithJValues(soa, obj, mid, args).GetJ();
1212   }
1213 
CallShortMethod(JNIEnv * env,jobject obj,jmethodID mid,...)1214   static jshort CallShortMethod(JNIEnv* env, jobject obj, jmethodID mid, ...) {
1215     va_list ap;
1216     va_start(ap, mid);
1217     ScopedVAArgs free_args_later(&ap);
1218     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1219     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1220     ScopedObjectAccess soa(env);
1221     JValue result(InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, ap));
1222     return result.GetS();
1223   }
1224 
CallShortMethodV(JNIEnv * env,jobject obj,jmethodID mid,va_list args)1225   static jshort CallShortMethodV(JNIEnv* env, jobject obj, jmethodID mid, va_list args) {
1226     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1227     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1228     ScopedObjectAccess soa(env);
1229     return InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, args).GetS();
1230   }
1231 
CallShortMethodA(JNIEnv * env,jobject obj,jmethodID mid,const jvalue * args)1232   static jshort CallShortMethodA(JNIEnv* env, jobject obj, jmethodID mid, const jvalue* args) {
1233     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1234     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1235     ScopedObjectAccess soa(env);
1236     return InvokeVirtualOrInterfaceWithJValues(soa, obj, mid, args).GetS();
1237   }
1238 
CallVoidMethod(JNIEnv * env,jobject obj,jmethodID mid,...)1239   static void CallVoidMethod(JNIEnv* env, jobject obj, jmethodID mid, ...) {
1240     va_list ap;
1241     va_start(ap, mid);
1242     ScopedVAArgs free_args_later(&ap);
1243     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(obj);
1244     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(mid);
1245     ScopedObjectAccess soa(env);
1246     InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, ap);
1247   }
1248 
CallVoidMethodV(JNIEnv * env,jobject obj,jmethodID mid,va_list args)1249   static void CallVoidMethodV(JNIEnv* env, jobject obj, jmethodID mid, va_list args) {
1250     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(obj);
1251     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(mid);
1252     ScopedObjectAccess soa(env);
1253     InvokeVirtualOrInterfaceWithVarArgs(soa, obj, mid, args);
1254   }
1255 
CallVoidMethodA(JNIEnv * env,jobject obj,jmethodID mid,const jvalue * args)1256   static void CallVoidMethodA(JNIEnv* env, jobject obj, jmethodID mid, const jvalue* args) {
1257     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(obj);
1258     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(mid);
1259     ScopedObjectAccess soa(env);
1260     InvokeVirtualOrInterfaceWithJValues(soa, obj, mid, args);
1261   }
1262 
CallNonvirtualObjectMethod(JNIEnv * env,jobject obj,jclass,jmethodID mid,...)1263   static jobject CallNonvirtualObjectMethod(JNIEnv* env, jobject obj, jclass, jmethodID mid, ...) {
1264     va_list ap;
1265     va_start(ap, mid);
1266     ScopedVAArgs free_args_later(&ap);
1267     CHECK_NON_NULL_ARGUMENT(obj);
1268     CHECK_NON_NULL_ARGUMENT(mid);
1269     ScopedObjectAccess soa(env);
1270     JValue result(InvokeWithVarArgs(soa, obj, mid, ap));
1271     return soa.AddLocalReference<jobject>(result.GetL());
1272   }
1273 
CallNonvirtualObjectMethodV(JNIEnv * env,jobject obj,jclass,jmethodID mid,va_list args)1274   static jobject CallNonvirtualObjectMethodV(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1275                                              va_list args) {
1276     CHECK_NON_NULL_ARGUMENT(obj);
1277     CHECK_NON_NULL_ARGUMENT(mid);
1278     ScopedObjectAccess soa(env);
1279     JValue result(InvokeWithVarArgs(soa, obj, mid, args));
1280     return soa.AddLocalReference<jobject>(result.GetL());
1281   }
1282 
CallNonvirtualObjectMethodA(JNIEnv * env,jobject obj,jclass,jmethodID mid,const jvalue * args)1283   static jobject CallNonvirtualObjectMethodA(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1284                                              const jvalue* args) {
1285     CHECK_NON_NULL_ARGUMENT(obj);
1286     CHECK_NON_NULL_ARGUMENT(mid);
1287     ScopedObjectAccess soa(env);
1288     JValue result(InvokeWithJValues(soa, obj, mid, args));
1289     return soa.AddLocalReference<jobject>(result.GetL());
1290   }
1291 
CallNonvirtualBooleanMethod(JNIEnv * env,jobject obj,jclass,jmethodID mid,...)1292   static jboolean CallNonvirtualBooleanMethod(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1293                                               ...) {
1294     va_list ap;
1295     va_start(ap, mid);
1296     ScopedVAArgs free_args_later(&ap);
1297     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1298     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1299     ScopedObjectAccess soa(env);
1300     JValue result(InvokeWithVarArgs(soa, obj, mid, ap));
1301     return result.GetZ();
1302   }
1303 
CallNonvirtualBooleanMethodV(JNIEnv * env,jobject obj,jclass,jmethodID mid,va_list args)1304   static jboolean CallNonvirtualBooleanMethodV(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1305                                                va_list args) {
1306     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1307     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1308     ScopedObjectAccess soa(env);
1309     return InvokeWithVarArgs(soa, obj, mid, args).GetZ();
1310   }
1311 
CallNonvirtualBooleanMethodA(JNIEnv * env,jobject obj,jclass,jmethodID mid,const jvalue * args)1312   static jboolean CallNonvirtualBooleanMethodA(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1313                                                const jvalue* args) {
1314     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1315     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1316     ScopedObjectAccess soa(env);
1317     return InvokeWithJValues(soa, obj, mid, args).GetZ();
1318   }
1319 
CallNonvirtualByteMethod(JNIEnv * env,jobject obj,jclass,jmethodID mid,...)1320   static jbyte CallNonvirtualByteMethod(JNIEnv* env, jobject obj, jclass, jmethodID mid, ...) {
1321     va_list ap;
1322     va_start(ap, mid);
1323     ScopedVAArgs free_args_later(&ap);
1324     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1325     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1326     ScopedObjectAccess soa(env);
1327     JValue result(InvokeWithVarArgs(soa, obj, mid, ap));
1328     return result.GetB();
1329   }
1330 
CallNonvirtualByteMethodV(JNIEnv * env,jobject obj,jclass,jmethodID mid,va_list args)1331   static jbyte CallNonvirtualByteMethodV(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1332                                          va_list args) {
1333     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1334     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1335     ScopedObjectAccess soa(env);
1336     return InvokeWithVarArgs(soa, obj, mid, args).GetB();
1337   }
1338 
CallNonvirtualByteMethodA(JNIEnv * env,jobject obj,jclass,jmethodID mid,const jvalue * args)1339   static jbyte CallNonvirtualByteMethodA(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1340                                          const jvalue* args) {
1341     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1342     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1343     ScopedObjectAccess soa(env);
1344     return InvokeWithJValues(soa, obj, mid, args).GetB();
1345   }
1346 
CallNonvirtualCharMethod(JNIEnv * env,jobject obj,jclass,jmethodID mid,...)1347   static jchar CallNonvirtualCharMethod(JNIEnv* env, jobject obj, jclass, jmethodID mid, ...) {
1348     va_list ap;
1349     va_start(ap, mid);
1350     ScopedVAArgs free_args_later(&ap);
1351     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1352     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1353     ScopedObjectAccess soa(env);
1354     JValue result(InvokeWithVarArgs(soa, obj, mid, ap));
1355     return result.GetC();
1356   }
1357 
CallNonvirtualCharMethodV(JNIEnv * env,jobject obj,jclass,jmethodID mid,va_list args)1358   static jchar CallNonvirtualCharMethodV(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1359                                          va_list args) {
1360     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1361     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1362     ScopedObjectAccess soa(env);
1363     return InvokeWithVarArgs(soa, obj, mid, args).GetC();
1364   }
1365 
CallNonvirtualCharMethodA(JNIEnv * env,jobject obj,jclass,jmethodID mid,const jvalue * args)1366   static jchar CallNonvirtualCharMethodA(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1367                                          const jvalue* args) {
1368     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1369     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1370     ScopedObjectAccess soa(env);
1371     return InvokeWithJValues(soa, obj, mid, args).GetC();
1372   }
1373 
CallNonvirtualShortMethod(JNIEnv * env,jobject obj,jclass,jmethodID mid,...)1374   static jshort CallNonvirtualShortMethod(JNIEnv* env, jobject obj, jclass, jmethodID mid, ...) {
1375     va_list ap;
1376     va_start(ap, mid);
1377     ScopedVAArgs free_args_later(&ap);
1378     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1379     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1380     ScopedObjectAccess soa(env);
1381     JValue result(InvokeWithVarArgs(soa, obj, mid, ap));
1382     return result.GetS();
1383   }
1384 
CallNonvirtualShortMethodV(JNIEnv * env,jobject obj,jclass,jmethodID mid,va_list args)1385   static jshort CallNonvirtualShortMethodV(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1386                                            va_list args) {
1387     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1388     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1389     ScopedObjectAccess soa(env);
1390     return InvokeWithVarArgs(soa, obj, mid, args).GetS();
1391   }
1392 
CallNonvirtualShortMethodA(JNIEnv * env,jobject obj,jclass,jmethodID mid,const jvalue * args)1393   static jshort CallNonvirtualShortMethodA(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1394                                            const jvalue* args) {
1395     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1396     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1397     ScopedObjectAccess soa(env);
1398     return InvokeWithJValues(soa, obj, mid, args).GetS();
1399   }
1400 
CallNonvirtualIntMethod(JNIEnv * env,jobject obj,jclass,jmethodID mid,...)1401   static jint CallNonvirtualIntMethod(JNIEnv* env, jobject obj, jclass, jmethodID mid, ...) {
1402     va_list ap;
1403     va_start(ap, mid);
1404     ScopedVAArgs free_args_later(&ap);
1405     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1406     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1407     ScopedObjectAccess soa(env);
1408     JValue result(InvokeWithVarArgs(soa, obj, mid, ap));
1409     return result.GetI();
1410   }
1411 
CallNonvirtualIntMethodV(JNIEnv * env,jobject obj,jclass,jmethodID mid,va_list args)1412   static jint CallNonvirtualIntMethodV(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1413                                        va_list args) {
1414     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1415     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1416     ScopedObjectAccess soa(env);
1417     return InvokeWithVarArgs(soa, obj, mid, args).GetI();
1418   }
1419 
CallNonvirtualIntMethodA(JNIEnv * env,jobject obj,jclass,jmethodID mid,const jvalue * args)1420   static jint CallNonvirtualIntMethodA(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1421                                        const jvalue* args) {
1422     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1423     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1424     ScopedObjectAccess soa(env);
1425     return InvokeWithJValues(soa, obj, mid, args).GetI();
1426   }
1427 
CallNonvirtualLongMethod(JNIEnv * env,jobject obj,jclass,jmethodID mid,...)1428   static jlong CallNonvirtualLongMethod(JNIEnv* env, jobject obj, jclass, jmethodID mid, ...) {
1429     va_list ap;
1430     va_start(ap, mid);
1431     ScopedVAArgs free_args_later(&ap);
1432     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1433     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1434     ScopedObjectAccess soa(env);
1435     JValue result(InvokeWithVarArgs(soa, obj, mid, ap));
1436     return result.GetJ();
1437   }
1438 
CallNonvirtualLongMethodV(JNIEnv * env,jobject obj,jclass,jmethodID mid,va_list args)1439   static jlong CallNonvirtualLongMethodV(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1440                                          va_list args) {
1441     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1442     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1443     ScopedObjectAccess soa(env);
1444     return InvokeWithVarArgs(soa, obj, mid, args).GetJ();
1445   }
1446 
CallNonvirtualLongMethodA(JNIEnv * env,jobject obj,jclass,jmethodID mid,const jvalue * args)1447   static jlong CallNonvirtualLongMethodA(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1448                                          const jvalue* args) {
1449     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1450     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1451     ScopedObjectAccess soa(env);
1452     return InvokeWithJValues(soa, obj, mid, args).GetJ();
1453   }
1454 
CallNonvirtualFloatMethod(JNIEnv * env,jobject obj,jclass,jmethodID mid,...)1455   static jfloat CallNonvirtualFloatMethod(JNIEnv* env, jobject obj, jclass, jmethodID mid, ...) {
1456     va_list ap;
1457     va_start(ap, mid);
1458     ScopedVAArgs free_args_later(&ap);
1459     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1460     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1461     ScopedObjectAccess soa(env);
1462     JValue result(InvokeWithVarArgs(soa, obj, mid, ap));
1463     return result.GetF();
1464   }
1465 
CallNonvirtualFloatMethodV(JNIEnv * env,jobject obj,jclass,jmethodID mid,va_list args)1466   static jfloat CallNonvirtualFloatMethodV(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1467                                            va_list args) {
1468     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1469     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1470     ScopedObjectAccess soa(env);
1471     return InvokeWithVarArgs(soa, obj, mid, args).GetF();
1472   }
1473 
CallNonvirtualFloatMethodA(JNIEnv * env,jobject obj,jclass,jmethodID mid,const jvalue * args)1474   static jfloat CallNonvirtualFloatMethodA(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1475                                            const jvalue* args) {
1476     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1477     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1478     ScopedObjectAccess soa(env);
1479     return InvokeWithJValues(soa, obj, mid, args).GetF();
1480   }
1481 
CallNonvirtualDoubleMethod(JNIEnv * env,jobject obj,jclass,jmethodID mid,...)1482   static jdouble CallNonvirtualDoubleMethod(JNIEnv* env, jobject obj, jclass, jmethodID mid, ...) {
1483     va_list ap;
1484     va_start(ap, mid);
1485     ScopedVAArgs free_args_later(&ap);
1486     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1487     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1488     ScopedObjectAccess soa(env);
1489     JValue result(InvokeWithVarArgs(soa, obj, mid, ap));
1490     return result.GetD();
1491   }
1492 
CallNonvirtualDoubleMethodV(JNIEnv * env,jobject obj,jclass,jmethodID mid,va_list args)1493   static jdouble CallNonvirtualDoubleMethodV(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1494                                              va_list args) {
1495     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1496     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1497     ScopedObjectAccess soa(env);
1498     return InvokeWithVarArgs(soa, obj, mid, args).GetD();
1499   }
1500 
CallNonvirtualDoubleMethodA(JNIEnv * env,jobject obj,jclass,jmethodID mid,const jvalue * args)1501   static jdouble CallNonvirtualDoubleMethodA(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1502                                              const jvalue* args) {
1503     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(obj);
1504     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1505     ScopedObjectAccess soa(env);
1506     return InvokeWithJValues(soa, obj, mid, args).GetD();
1507   }
1508 
CallNonvirtualVoidMethod(JNIEnv * env,jobject obj,jclass,jmethodID mid,...)1509   static void CallNonvirtualVoidMethod(JNIEnv* env, jobject obj, jclass, jmethodID mid, ...) {
1510     va_list ap;
1511     va_start(ap, mid);
1512     ScopedVAArgs free_args_later(&ap);
1513     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(obj);
1514     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(mid);
1515     ScopedObjectAccess soa(env);
1516     InvokeWithVarArgs(soa, obj, mid, ap);
1517   }
1518 
CallNonvirtualVoidMethodV(JNIEnv * env,jobject obj,jclass,jmethodID mid,va_list args)1519   static void CallNonvirtualVoidMethodV(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1520                                         va_list args) {
1521     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(obj);
1522     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(mid);
1523     ScopedObjectAccess soa(env);
1524     InvokeWithVarArgs(soa, obj, mid, args);
1525   }
1526 
CallNonvirtualVoidMethodA(JNIEnv * env,jobject obj,jclass,jmethodID mid,const jvalue * args)1527   static void CallNonvirtualVoidMethodA(JNIEnv* env, jobject obj, jclass, jmethodID mid,
1528                                         const jvalue* args) {
1529     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(obj);
1530     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(mid);
1531     ScopedObjectAccess soa(env);
1532     InvokeWithJValues(soa, obj, mid, args);
1533   }
1534 
GetFieldID(JNIEnv * env,jclass java_class,const char * name,const char * sig)1535   static jfieldID GetFieldID(JNIEnv* env, jclass java_class, const char* name, const char* sig) {
1536     CHECK_NON_NULL_ARGUMENT(java_class);
1537     CHECK_NON_NULL_ARGUMENT(name);
1538     CHECK_NON_NULL_ARGUMENT(sig);
1539     ScopedObjectAccess soa(env);
1540     return FindFieldID<kEnableIndexIds>(soa, java_class, name, sig, false);
1541   }
1542 
GetStaticFieldID(JNIEnv * env,jclass java_class,const char * name,const char * sig)1543   static jfieldID GetStaticFieldID(JNIEnv* env, jclass java_class, const char* name,
1544                                    const char* sig) {
1545     CHECK_NON_NULL_ARGUMENT(java_class);
1546     CHECK_NON_NULL_ARGUMENT(name);
1547     CHECK_NON_NULL_ARGUMENT(sig);
1548     ScopedObjectAccess soa(env);
1549     return FindFieldID<kEnableIndexIds>(soa, java_class, name, sig, true);
1550   }
1551 
GetObjectField(JNIEnv * env,jobject obj,jfieldID fid)1552   static jobject GetObjectField(JNIEnv* env, jobject obj, jfieldID fid) {
1553     CHECK_NON_NULL_ARGUMENT(obj);
1554     CHECK_NON_NULL_ARGUMENT(fid);
1555     ScopedObjectAccess soa(env);
1556     ArtField* f = jni::DecodeArtField<kEnableIndexIds>(fid);
1557     NotifyGetField(f, obj);
1558     ObjPtr<mirror::Object> o = soa.Decode<mirror::Object>(obj);
1559     return soa.AddLocalReference<jobject>(f->GetObject(o));
1560   }
1561 
GetStaticObjectField(JNIEnv * env,jclass,jfieldID fid)1562   static jobject GetStaticObjectField(JNIEnv* env, jclass, jfieldID fid) {
1563     CHECK_NON_NULL_ARGUMENT(fid);
1564     ScopedObjectAccess soa(env);
1565     ArtField* f = jni::DecodeArtField<kEnableIndexIds>(fid);
1566     NotifyGetField(f, nullptr);
1567     return soa.AddLocalReference<jobject>(f->GetObject(f->GetDeclaringClass()));
1568   }
1569 
SetObjectField(JNIEnv * env,jobject java_object,jfieldID fid,jobject java_value)1570   static void SetObjectField(JNIEnv* env, jobject java_object, jfieldID fid, jobject java_value) {
1571     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(java_object);
1572     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(fid);
1573     ScopedObjectAccess soa(env);
1574     ArtField* f = jni::DecodeArtField<kEnableIndexIds>(fid);
1575     NotifySetObjectField(f, java_object, java_value);
1576     ObjPtr<mirror::Object> o = soa.Decode<mirror::Object>(java_object);
1577     ObjPtr<mirror::Object> v = soa.Decode<mirror::Object>(java_value);
1578     f->SetObject<false>(o, v);
1579   }
1580 
SetStaticObjectField(JNIEnv * env,jclass,jfieldID fid,jobject java_value)1581   static void SetStaticObjectField(JNIEnv* env, jclass, jfieldID fid, jobject java_value) {
1582     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(fid);
1583     ScopedObjectAccess soa(env);
1584     ArtField* f = jni::DecodeArtField<kEnableIndexIds>(fid);
1585     NotifySetObjectField(f, nullptr, java_value);
1586     ObjPtr<mirror::Object> v = soa.Decode<mirror::Object>(java_value);
1587     f->SetObject<false>(f->GetDeclaringClass(), v);
1588   }
1589 
1590 #define GET_PRIMITIVE_FIELD(fn, instance) \
1591   CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(instance); \
1592   CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(fid); \
1593   ScopedObjectAccess soa(env); \
1594   ArtField* f = jni::DecodeArtField<kEnableIndexIds>(fid); \
1595   NotifyGetField(f, instance); \
1596   ObjPtr<mirror::Object> o = soa.Decode<mirror::Object>(instance); \
1597   return f->Get ##fn (o)
1598 
1599 #define GET_STATIC_PRIMITIVE_FIELD(fn) \
1600   CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(fid); \
1601   ScopedObjectAccess soa(env); \
1602   ArtField* f = jni::DecodeArtField<kEnableIndexIds>(fid); \
1603   NotifyGetField(f, nullptr); \
1604   return f->Get ##fn (f->GetDeclaringClass())
1605 
1606 #define SET_PRIMITIVE_FIELD(fn, instance, value) \
1607   CHECK_NON_NULL_ARGUMENT_RETURN_VOID(instance); \
1608   CHECK_NON_NULL_ARGUMENT_RETURN_VOID(fid); \
1609   ScopedObjectAccess soa(env); \
1610   ArtField* f = jni::DecodeArtField<kEnableIndexIds>(fid); \
1611   NotifySetPrimitiveField(f, instance, JValue::FromPrimitive<decltype(value)>(value)); \
1612   ObjPtr<mirror::Object> o = soa.Decode<mirror::Object>(instance); \
1613   f->Set ##fn <false>(o, value)
1614 
1615 #define SET_STATIC_PRIMITIVE_FIELD(fn, value) \
1616   CHECK_NON_NULL_ARGUMENT_RETURN_VOID(fid); \
1617   ScopedObjectAccess soa(env); \
1618   ArtField* f = jni::DecodeArtField<kEnableIndexIds>(fid); \
1619   NotifySetPrimitiveField(f, nullptr, JValue::FromPrimitive<decltype(value)>(value)); \
1620   f->Set ##fn <false>(f->GetDeclaringClass(), value)
1621 
GetBooleanField(JNIEnv * env,jobject obj,jfieldID fid)1622   static jboolean GetBooleanField(JNIEnv* env, jobject obj, jfieldID fid) {
1623     GET_PRIMITIVE_FIELD(Boolean, obj);
1624   }
1625 
GetByteField(JNIEnv * env,jobject obj,jfieldID fid)1626   static jbyte GetByteField(JNIEnv* env, jobject obj, jfieldID fid) {
1627     GET_PRIMITIVE_FIELD(Byte, obj);
1628   }
1629 
GetCharField(JNIEnv * env,jobject obj,jfieldID fid)1630   static jchar GetCharField(JNIEnv* env, jobject obj, jfieldID fid) {
1631     GET_PRIMITIVE_FIELD(Char, obj);
1632   }
1633 
GetShortField(JNIEnv * env,jobject obj,jfieldID fid)1634   static jshort GetShortField(JNIEnv* env, jobject obj, jfieldID fid) {
1635     GET_PRIMITIVE_FIELD(Short, obj);
1636   }
1637 
GetIntField(JNIEnv * env,jobject obj,jfieldID fid)1638   static jint GetIntField(JNIEnv* env, jobject obj, jfieldID fid) {
1639     GET_PRIMITIVE_FIELD(Int, obj);
1640   }
1641 
GetLongField(JNIEnv * env,jobject obj,jfieldID fid)1642   static jlong GetLongField(JNIEnv* env, jobject obj, jfieldID fid) {
1643     GET_PRIMITIVE_FIELD(Long, obj);
1644   }
1645 
GetFloatField(JNIEnv * env,jobject obj,jfieldID fid)1646   static jfloat GetFloatField(JNIEnv* env, jobject obj, jfieldID fid) {
1647     GET_PRIMITIVE_FIELD(Float, obj);
1648   }
1649 
GetDoubleField(JNIEnv * env,jobject obj,jfieldID fid)1650   static jdouble GetDoubleField(JNIEnv* env, jobject obj, jfieldID fid) {
1651     GET_PRIMITIVE_FIELD(Double, obj);
1652   }
1653 
GetStaticBooleanField(JNIEnv * env,jclass,jfieldID fid)1654   static jboolean GetStaticBooleanField(JNIEnv* env, jclass, jfieldID fid) {
1655     GET_STATIC_PRIMITIVE_FIELD(Boolean);
1656   }
1657 
GetStaticByteField(JNIEnv * env,jclass,jfieldID fid)1658   static jbyte GetStaticByteField(JNIEnv* env, jclass, jfieldID fid) {
1659     GET_STATIC_PRIMITIVE_FIELD(Byte);
1660   }
1661 
GetStaticCharField(JNIEnv * env,jclass,jfieldID fid)1662   static jchar GetStaticCharField(JNIEnv* env, jclass, jfieldID fid) {
1663     GET_STATIC_PRIMITIVE_FIELD(Char);
1664   }
1665 
GetStaticShortField(JNIEnv * env,jclass,jfieldID fid)1666   static jshort GetStaticShortField(JNIEnv* env, jclass, jfieldID fid) {
1667     GET_STATIC_PRIMITIVE_FIELD(Short);
1668   }
1669 
GetStaticIntField(JNIEnv * env,jclass,jfieldID fid)1670   static jint GetStaticIntField(JNIEnv* env, jclass, jfieldID fid) {
1671     GET_STATIC_PRIMITIVE_FIELD(Int);
1672   }
1673 
GetStaticLongField(JNIEnv * env,jclass,jfieldID fid)1674   static jlong GetStaticLongField(JNIEnv* env, jclass, jfieldID fid) {
1675     GET_STATIC_PRIMITIVE_FIELD(Long);
1676   }
1677 
GetStaticFloatField(JNIEnv * env,jclass,jfieldID fid)1678   static jfloat GetStaticFloatField(JNIEnv* env, jclass, jfieldID fid) {
1679     GET_STATIC_PRIMITIVE_FIELD(Float);
1680   }
1681 
GetStaticDoubleField(JNIEnv * env,jclass,jfieldID fid)1682   static jdouble GetStaticDoubleField(JNIEnv* env, jclass, jfieldID fid) {
1683     GET_STATIC_PRIMITIVE_FIELD(Double);
1684   }
1685 
SetBooleanField(JNIEnv * env,jobject obj,jfieldID fid,jboolean v)1686   static void SetBooleanField(JNIEnv* env, jobject obj, jfieldID fid, jboolean v) {
1687     SET_PRIMITIVE_FIELD(Boolean, obj, v);
1688   }
1689 
SetByteField(JNIEnv * env,jobject obj,jfieldID fid,jbyte v)1690   static void SetByteField(JNIEnv* env, jobject obj, jfieldID fid, jbyte v) {
1691     SET_PRIMITIVE_FIELD(Byte, obj, v);
1692   }
1693 
SetCharField(JNIEnv * env,jobject obj,jfieldID fid,jchar v)1694   static void SetCharField(JNIEnv* env, jobject obj, jfieldID fid, jchar v) {
1695     SET_PRIMITIVE_FIELD(Char, obj, v);
1696   }
1697 
SetFloatField(JNIEnv * env,jobject obj,jfieldID fid,jfloat v)1698   static void SetFloatField(JNIEnv* env, jobject obj, jfieldID fid, jfloat v) {
1699     SET_PRIMITIVE_FIELD(Float, obj, v);
1700   }
1701 
SetDoubleField(JNIEnv * env,jobject obj,jfieldID fid,jdouble v)1702   static void SetDoubleField(JNIEnv* env, jobject obj, jfieldID fid, jdouble v) {
1703     SET_PRIMITIVE_FIELD(Double, obj, v);
1704   }
1705 
SetIntField(JNIEnv * env,jobject obj,jfieldID fid,jint v)1706   static void SetIntField(JNIEnv* env, jobject obj, jfieldID fid, jint v) {
1707     SET_PRIMITIVE_FIELD(Int, obj, v);
1708   }
1709 
SetLongField(JNIEnv * env,jobject obj,jfieldID fid,jlong v)1710   static void SetLongField(JNIEnv* env, jobject obj, jfieldID fid, jlong v) {
1711     SET_PRIMITIVE_FIELD(Long, obj, v);
1712   }
1713 
SetShortField(JNIEnv * env,jobject obj,jfieldID fid,jshort v)1714   static void SetShortField(JNIEnv* env, jobject obj, jfieldID fid, jshort v) {
1715     SET_PRIMITIVE_FIELD(Short, obj, v);
1716   }
1717 
SetStaticBooleanField(JNIEnv * env,jclass,jfieldID fid,jboolean v)1718   static void SetStaticBooleanField(JNIEnv* env, jclass, jfieldID fid, jboolean v) {
1719     SET_STATIC_PRIMITIVE_FIELD(Boolean, v);
1720   }
1721 
SetStaticByteField(JNIEnv * env,jclass,jfieldID fid,jbyte v)1722   static void SetStaticByteField(JNIEnv* env, jclass, jfieldID fid, jbyte v) {
1723     SET_STATIC_PRIMITIVE_FIELD(Byte, v);
1724   }
1725 
SetStaticCharField(JNIEnv * env,jclass,jfieldID fid,jchar v)1726   static void SetStaticCharField(JNIEnv* env, jclass, jfieldID fid, jchar v) {
1727     SET_STATIC_PRIMITIVE_FIELD(Char, v);
1728   }
1729 
SetStaticFloatField(JNIEnv * env,jclass,jfieldID fid,jfloat v)1730   static void SetStaticFloatField(JNIEnv* env, jclass, jfieldID fid, jfloat v) {
1731     SET_STATIC_PRIMITIVE_FIELD(Float, v);
1732   }
1733 
SetStaticDoubleField(JNIEnv * env,jclass,jfieldID fid,jdouble v)1734   static void SetStaticDoubleField(JNIEnv* env, jclass, jfieldID fid, jdouble v) {
1735     SET_STATIC_PRIMITIVE_FIELD(Double, v);
1736   }
1737 
SetStaticIntField(JNIEnv * env,jclass,jfieldID fid,jint v)1738   static void SetStaticIntField(JNIEnv* env, jclass, jfieldID fid, jint v) {
1739     SET_STATIC_PRIMITIVE_FIELD(Int, v);
1740   }
1741 
SetStaticLongField(JNIEnv * env,jclass,jfieldID fid,jlong v)1742   static void SetStaticLongField(JNIEnv* env, jclass, jfieldID fid, jlong v) {
1743     SET_STATIC_PRIMITIVE_FIELD(Long, v);
1744   }
1745 
SetStaticShortField(JNIEnv * env,jclass,jfieldID fid,jshort v)1746   static void SetStaticShortField(JNIEnv* env, jclass, jfieldID fid, jshort v) {
1747     SET_STATIC_PRIMITIVE_FIELD(Short, v);
1748   }
1749 
CallStaticObjectMethod(JNIEnv * env,jclass,jmethodID mid,...)1750   static jobject CallStaticObjectMethod(JNIEnv* env, jclass, jmethodID mid, ...) {
1751     va_list ap;
1752     va_start(ap, mid);
1753     ScopedVAArgs free_args_later(&ap);
1754     CHECK_NON_NULL_ARGUMENT(mid);
1755     ScopedObjectAccess soa(env);
1756     JValue result(InvokeWithVarArgs(soa, nullptr, mid, ap));
1757     return soa.AddLocalReference<jobject>(result.GetL());
1758   }
1759 
CallStaticObjectMethodV(JNIEnv * env,jclass,jmethodID mid,va_list args)1760   static jobject CallStaticObjectMethodV(JNIEnv* env, jclass, jmethodID mid, va_list args) {
1761     CHECK_NON_NULL_ARGUMENT(mid);
1762     ScopedObjectAccess soa(env);
1763     JValue result(InvokeWithVarArgs(soa, nullptr, mid, args));
1764     return soa.AddLocalReference<jobject>(result.GetL());
1765   }
1766 
CallStaticObjectMethodA(JNIEnv * env,jclass,jmethodID mid,const jvalue * args)1767   static jobject CallStaticObjectMethodA(JNIEnv* env, jclass, jmethodID mid, const jvalue* args) {
1768     CHECK_NON_NULL_ARGUMENT(mid);
1769     ScopedObjectAccess soa(env);
1770     JValue result(InvokeWithJValues(soa, nullptr, mid, args));
1771     return soa.AddLocalReference<jobject>(result.GetL());
1772   }
1773 
CallStaticBooleanMethod(JNIEnv * env,jclass,jmethodID mid,...)1774   static jboolean CallStaticBooleanMethod(JNIEnv* env, jclass, jmethodID mid, ...) {
1775     va_list ap;
1776     va_start(ap, mid);
1777     ScopedVAArgs free_args_later(&ap);
1778     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1779     ScopedObjectAccess soa(env);
1780     JValue result(InvokeWithVarArgs(soa, nullptr, mid, ap));
1781     return result.GetZ();
1782   }
1783 
CallStaticBooleanMethodV(JNIEnv * env,jclass,jmethodID mid,va_list args)1784   static jboolean CallStaticBooleanMethodV(JNIEnv* env, jclass, jmethodID mid, va_list args) {
1785     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1786     ScopedObjectAccess soa(env);
1787     return InvokeWithVarArgs(soa, nullptr, mid, args).GetZ();
1788   }
1789 
CallStaticBooleanMethodA(JNIEnv * env,jclass,jmethodID mid,const jvalue * args)1790   static jboolean CallStaticBooleanMethodA(JNIEnv* env, jclass, jmethodID mid, const jvalue* args) {
1791     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1792     ScopedObjectAccess soa(env);
1793     return InvokeWithJValues(soa, nullptr, mid, args).GetZ();
1794   }
1795 
CallStaticByteMethod(JNIEnv * env,jclass,jmethodID mid,...)1796   static jbyte CallStaticByteMethod(JNIEnv* env, jclass, jmethodID mid, ...) {
1797     va_list ap;
1798     va_start(ap, mid);
1799     ScopedVAArgs free_args_later(&ap);
1800     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1801     ScopedObjectAccess soa(env);
1802     JValue result(InvokeWithVarArgs(soa, nullptr, mid, ap));
1803     return result.GetB();
1804   }
1805 
CallStaticByteMethodV(JNIEnv * env,jclass,jmethodID mid,va_list args)1806   static jbyte CallStaticByteMethodV(JNIEnv* env, jclass, jmethodID mid, va_list args) {
1807     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1808     ScopedObjectAccess soa(env);
1809     return InvokeWithVarArgs(soa, nullptr, mid, args).GetB();
1810   }
1811 
CallStaticByteMethodA(JNIEnv * env,jclass,jmethodID mid,const jvalue * args)1812   static jbyte CallStaticByteMethodA(JNIEnv* env, jclass, jmethodID mid, const jvalue* args) {
1813     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1814     ScopedObjectAccess soa(env);
1815     return InvokeWithJValues(soa, nullptr, mid, args).GetB();
1816   }
1817 
CallStaticCharMethod(JNIEnv * env,jclass,jmethodID mid,...)1818   static jchar CallStaticCharMethod(JNIEnv* env, jclass, jmethodID mid, ...) {
1819     va_list ap;
1820     va_start(ap, mid);
1821     ScopedVAArgs free_args_later(&ap);
1822     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1823     ScopedObjectAccess soa(env);
1824     JValue result(InvokeWithVarArgs(soa, nullptr, mid, ap));
1825     return result.GetC();
1826   }
1827 
CallStaticCharMethodV(JNIEnv * env,jclass,jmethodID mid,va_list args)1828   static jchar CallStaticCharMethodV(JNIEnv* env, jclass, jmethodID mid, va_list args) {
1829     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1830     ScopedObjectAccess soa(env);
1831     return InvokeWithVarArgs(soa, nullptr, mid, args).GetC();
1832   }
1833 
CallStaticCharMethodA(JNIEnv * env,jclass,jmethodID mid,const jvalue * args)1834   static jchar CallStaticCharMethodA(JNIEnv* env, jclass, jmethodID mid, const jvalue* args) {
1835     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1836     ScopedObjectAccess soa(env);
1837     return InvokeWithJValues(soa, nullptr, mid, args).GetC();
1838   }
1839 
CallStaticShortMethod(JNIEnv * env,jclass,jmethodID mid,...)1840   static jshort CallStaticShortMethod(JNIEnv* env, jclass, jmethodID mid, ...) {
1841     va_list ap;
1842     va_start(ap, mid);
1843     ScopedVAArgs free_args_later(&ap);
1844     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1845     ScopedObjectAccess soa(env);
1846     JValue result(InvokeWithVarArgs(soa, nullptr, mid, ap));
1847     return result.GetS();
1848   }
1849 
CallStaticShortMethodV(JNIEnv * env,jclass,jmethodID mid,va_list args)1850   static jshort CallStaticShortMethodV(JNIEnv* env, jclass, jmethodID mid, va_list args) {
1851     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1852     ScopedObjectAccess soa(env);
1853     return InvokeWithVarArgs(soa, nullptr, mid, args).GetS();
1854   }
1855 
CallStaticShortMethodA(JNIEnv * env,jclass,jmethodID mid,const jvalue * args)1856   static jshort CallStaticShortMethodA(JNIEnv* env, jclass, jmethodID mid, const jvalue* args) {
1857     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1858     ScopedObjectAccess soa(env);
1859     return InvokeWithJValues(soa, nullptr, mid, args).GetS();
1860   }
1861 
CallStaticIntMethod(JNIEnv * env,jclass,jmethodID mid,...)1862   static jint CallStaticIntMethod(JNIEnv* env, jclass, jmethodID mid, ...) {
1863     va_list ap;
1864     va_start(ap, mid);
1865     ScopedVAArgs free_args_later(&ap);
1866     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1867     ScopedObjectAccess soa(env);
1868     JValue result(InvokeWithVarArgs(soa, nullptr, mid, ap));
1869     return result.GetI();
1870   }
1871 
CallStaticIntMethodV(JNIEnv * env,jclass,jmethodID mid,va_list args)1872   static jint CallStaticIntMethodV(JNIEnv* env, jclass, jmethodID mid, va_list args) {
1873     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1874     ScopedObjectAccess soa(env);
1875     return InvokeWithVarArgs(soa, nullptr, mid, args).GetI();
1876   }
1877 
CallStaticIntMethodA(JNIEnv * env,jclass,jmethodID mid,const jvalue * args)1878   static jint CallStaticIntMethodA(JNIEnv* env, jclass, jmethodID mid, const jvalue* args) {
1879     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1880     ScopedObjectAccess soa(env);
1881     return InvokeWithJValues(soa, nullptr, mid, args).GetI();
1882   }
1883 
CallStaticLongMethod(JNIEnv * env,jclass,jmethodID mid,...)1884   static jlong CallStaticLongMethod(JNIEnv* env, jclass, jmethodID mid, ...) {
1885     va_list ap;
1886     va_start(ap, mid);
1887     ScopedVAArgs free_args_later(&ap);
1888     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1889     ScopedObjectAccess soa(env);
1890     JValue result(InvokeWithVarArgs(soa, nullptr, mid, ap));
1891     return result.GetJ();
1892   }
1893 
CallStaticLongMethodV(JNIEnv * env,jclass,jmethodID mid,va_list args)1894   static jlong CallStaticLongMethodV(JNIEnv* env, jclass, jmethodID mid, va_list args) {
1895     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1896     ScopedObjectAccess soa(env);
1897     return InvokeWithVarArgs(soa, nullptr, mid, args).GetJ();
1898   }
1899 
CallStaticLongMethodA(JNIEnv * env,jclass,jmethodID mid,const jvalue * args)1900   static jlong CallStaticLongMethodA(JNIEnv* env, jclass, jmethodID mid, const jvalue* args) {
1901     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1902     ScopedObjectAccess soa(env);
1903     return InvokeWithJValues(soa, nullptr, mid, args).GetJ();
1904   }
1905 
CallStaticFloatMethod(JNIEnv * env,jclass,jmethodID mid,...)1906   static jfloat CallStaticFloatMethod(JNIEnv* env, jclass, jmethodID mid, ...) {
1907     va_list ap;
1908     va_start(ap, mid);
1909     ScopedVAArgs free_args_later(&ap);
1910     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1911     ScopedObjectAccess soa(env);
1912     JValue result(InvokeWithVarArgs(soa, nullptr, mid, ap));
1913     return result.GetF();
1914   }
1915 
CallStaticFloatMethodV(JNIEnv * env,jclass,jmethodID mid,va_list args)1916   static jfloat CallStaticFloatMethodV(JNIEnv* env, jclass, jmethodID mid, va_list args) {
1917     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1918     ScopedObjectAccess soa(env);
1919     return InvokeWithVarArgs(soa, nullptr, mid, args).GetF();
1920   }
1921 
CallStaticFloatMethodA(JNIEnv * env,jclass,jmethodID mid,const jvalue * args)1922   static jfloat CallStaticFloatMethodA(JNIEnv* env, jclass, jmethodID mid, const jvalue* args) {
1923     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1924     ScopedObjectAccess soa(env);
1925     return InvokeWithJValues(soa, nullptr, mid, args).GetF();
1926   }
1927 
CallStaticDoubleMethod(JNIEnv * env,jclass,jmethodID mid,...)1928   static jdouble CallStaticDoubleMethod(JNIEnv* env, jclass, jmethodID mid, ...) {
1929     va_list ap;
1930     va_start(ap, mid);
1931     ScopedVAArgs free_args_later(&ap);
1932     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1933     ScopedObjectAccess soa(env);
1934     JValue result(InvokeWithVarArgs(soa, nullptr, mid, ap));
1935     return result.GetD();
1936   }
1937 
CallStaticDoubleMethodV(JNIEnv * env,jclass,jmethodID mid,va_list args)1938   static jdouble CallStaticDoubleMethodV(JNIEnv* env, jclass, jmethodID mid, va_list args) {
1939     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1940     ScopedObjectAccess soa(env);
1941     return InvokeWithVarArgs(soa, nullptr, mid, args).GetD();
1942   }
1943 
CallStaticDoubleMethodA(JNIEnv * env,jclass,jmethodID mid,const jvalue * args)1944   static jdouble CallStaticDoubleMethodA(JNIEnv* env, jclass, jmethodID mid, const jvalue* args) {
1945     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(mid);
1946     ScopedObjectAccess soa(env);
1947     return InvokeWithJValues(soa, nullptr, mid, args).GetD();
1948   }
1949 
1950   NO_STACK_PROTECTOR
CallStaticVoidMethod(JNIEnv * env,jclass,jmethodID mid,...)1951   static void CallStaticVoidMethod(JNIEnv* env, jclass, jmethodID mid, ...) {
1952     va_list ap;
1953     va_start(ap, mid);
1954     ScopedVAArgs free_args_later(&ap);
1955     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(mid);
1956     ScopedObjectAccess soa(env);
1957     InvokeWithVarArgs(soa, nullptr, mid, ap);
1958   }
1959 
1960   NO_STACK_PROTECTOR
CallStaticVoidMethodV(JNIEnv * env,jclass,jmethodID mid,va_list args)1961   static void CallStaticVoidMethodV(JNIEnv* env, jclass, jmethodID mid, va_list args) {
1962     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(mid);
1963     ScopedObjectAccess soa(env);
1964     InvokeWithVarArgs(soa, nullptr, mid, args);
1965   }
1966 
CallStaticVoidMethodA(JNIEnv * env,jclass,jmethodID mid,const jvalue * args)1967   static void CallStaticVoidMethodA(JNIEnv* env, jclass, jmethodID mid, const jvalue* args) {
1968     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(mid);
1969     ScopedObjectAccess soa(env);
1970     InvokeWithJValues(soa, nullptr, mid, args);
1971   }
1972 
NewString(JNIEnv * env,const jchar * chars,jsize char_count)1973   static jstring NewString(JNIEnv* env, const jchar* chars, jsize char_count) {
1974     if (UNLIKELY(char_count < 0)) {
1975       JavaVmExtFromEnv(env)->JniAbortF("NewString", "char_count < 0: %d", char_count);
1976       return nullptr;
1977     }
1978     if (UNLIKELY(chars == nullptr && char_count > 0)) {
1979       JavaVmExtFromEnv(env)->JniAbortF("NewString", "chars == null && char_count > 0");
1980       return nullptr;
1981     }
1982     ScopedObjectAccess soa(env);
1983     ObjPtr<mirror::String> result = mirror::String::AllocFromUtf16(soa.Self(), char_count, chars);
1984     return soa.AddLocalReference<jstring>(result);
1985   }
1986 
1987   // For historical reasons, NewStringUTF() accepts 4-byte UTF-8
1988   // sequences which are not valid Modified UTF-8. This can be
1989   // considered an extension of the JNI specification.
NewStringUTF(JNIEnv * env,const char * utf)1990   static jstring NewStringUTF(JNIEnv* env, const char* utf) {
1991     if (utf == nullptr) {
1992       return nullptr;
1993     }
1994 
1995     // The input may come from an untrusted source, so we need to validate it.
1996     // We do not perform full validation, only as much as necessary to avoid reading
1997     // beyond the terminating null character. CheckJNI performs stronger validation.
1998     size_t utf8_length = strlen(utf);
1999     bool compressible = mirror::kUseStringCompression;
2000     bool has_bad_char = false;
2001     size_t utf16_length = VisitUtf8Chars(
2002         utf,
2003         utf8_length,
2004         /*good=*/ [&compressible](const char* ptr, size_t length) {
2005           if (mirror::kUseStringCompression) {
2006             switch (length) {
2007               case 1:
2008                 DCHECK(mirror::String::IsASCII(*ptr));
2009                 break;
2010               case 2:
2011               case 3:
2012                 if (!mirror::String::IsASCII(DecodeModifiedUtf8Character(ptr, length))) {
2013                   compressible = false;
2014                 }
2015                 break;
2016               default:
2017                 // 4-byte sequences lead to uncompressible surroate pairs.
2018                 DCHECK_EQ(length, 4u);
2019                 compressible = false;
2020                 break;
2021             }
2022           }
2023         },
2024         /*bad=*/ [&has_bad_char]() {
2025           static_assert(mirror::String::IsASCII(kBadUtf8ReplacementChar));  // Compressible.
2026           has_bad_char = true;
2027         });
2028     if (UNLIKELY(utf16_length > static_cast<uint32_t>(std::numeric_limits<int32_t>::max()))) {
2029       // Converting the utf16_length to int32_t would overflow. Explicitly throw an OOME.
2030       std::string error =
2031           android::base::StringPrintf("NewStringUTF input has 2^31 or more characters: %zu",
2032                                       utf16_length);
2033       ScopedObjectAccess soa(env);
2034       soa.Self()->ThrowOutOfMemoryError(error.c_str());
2035       return nullptr;
2036     }
2037     if (UNLIKELY(has_bad_char)) {
2038       // VisitUtf8Chars() found a bad character.
2039       android_errorWriteLog(0x534e4554, "172655291");  // Report to SafetyNet.
2040       // Report the error to logcat but avoid too much spam.
2041       static const uint64_t kMinDelay = UINT64_C(10000000000);  // 10s
2042       static std::atomic<uint64_t> prev_bad_input_time(UINT64_C(0));
2043       uint64_t prev_time = prev_bad_input_time.load(std::memory_order_relaxed);
2044       uint64_t now = NanoTime();
2045       if ((prev_time == 0u || now - prev_time >= kMinDelay) &&
2046           prev_bad_input_time.compare_exchange_strong(prev_time, now, std::memory_order_relaxed)) {
2047         LOG(ERROR) << "Invalid UTF-8 input to JNI::NewStringUTF()";
2048       }
2049     }
2050     const int32_t length_with_flag = mirror::String::GetFlaggedCount(utf16_length, compressible);
2051     NewStringUTFVisitor visitor(utf, utf8_length, length_with_flag, has_bad_char);
2052 
2053     ScopedObjectAccess soa(env);
2054     gc::AllocatorType allocator_type = Runtime::Current()->GetHeap()->GetCurrentAllocator();
2055     ObjPtr<mirror::String> result =
2056         mirror::String::Alloc(soa.Self(), length_with_flag, allocator_type, visitor);
2057     return soa.AddLocalReference<jstring>(result);
2058   }
2059 
GetStringLength(JNIEnv * env,jstring java_string)2060   static jsize GetStringLength(JNIEnv* env, jstring java_string) {
2061     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(java_string);
2062     ScopedObjectAccess soa(env);
2063     return soa.Decode<mirror::String>(java_string)->GetLength();
2064   }
2065 
GetStringUTFLength(JNIEnv * env,jstring java_string)2066   static jsize GetStringUTFLength(JNIEnv* env, jstring java_string) {
2067     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(java_string);
2068     ScopedObjectAccess soa(env);
2069     ObjPtr<mirror::String> str = soa.Decode<mirror::String>(java_string);
2070     return str->IsCompressed()
2071         ? str->GetLength()
2072         : GetUncompressedStringUTFLength(str->GetValue(), str->GetLength());
2073   }
2074 
GetStringRegion(JNIEnv * env,jstring java_string,jsize start,jsize length,jchar * buf)2075   static void GetStringRegion(JNIEnv* env, jstring java_string, jsize start, jsize length,
2076                               jchar* buf) {
2077     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(java_string);
2078     ScopedObjectAccess soa(env);
2079     ObjPtr<mirror::String> s = soa.Decode<mirror::String>(java_string);
2080     if (start < 0 || length < 0 || length > s->GetLength() - start) {
2081       ThrowSIOOBE(soa, start, length, s->GetLength());
2082     } else {
2083       CHECK_NON_NULL_MEMCPY_ARGUMENT(length, buf);
2084       if (s->IsCompressed()) {
2085         const uint8_t* src = s->GetValueCompressed() + start;
2086         for (int i = 0; i < length; ++i) {
2087           buf[i] = static_cast<jchar>(src[i]);
2088         }
2089       } else {
2090         const jchar* chars = static_cast<jchar*>(s->GetValue());
2091         memcpy(buf, chars + start, length * sizeof(jchar));
2092       }
2093     }
2094   }
2095 
GetStringUTFRegion(JNIEnv * env,jstring java_string,jsize start,jsize length,char * buf)2096   static void GetStringUTFRegion(JNIEnv* env, jstring java_string, jsize start, jsize length,
2097                                  char* buf) {
2098     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(java_string);
2099     ScopedObjectAccess soa(env);
2100     ObjPtr<mirror::String> s = soa.Decode<mirror::String>(java_string);
2101     if (start < 0 || length < 0 || length > s->GetLength() - start) {
2102       ThrowSIOOBE(soa, start, length, s->GetLength());
2103     } else {
2104       CHECK_NON_NULL_MEMCPY_ARGUMENT(length, buf);
2105       if (length == 0 && buf == nullptr) {
2106         // Don't touch anything when length is 0 and null buffer.
2107         return;
2108       }
2109       if (s->IsCompressed()) {
2110         const uint8_t* src = s->GetValueCompressed() + start;
2111         for (int i = 0; i < length; ++i) {
2112           buf[i] = static_cast<jchar>(src[i]);
2113         }
2114         buf[length] = '\0';
2115       } else {
2116         char* end = GetUncompressedStringUTFChars(s->GetValue() + start, length, buf);
2117         *end = '\0';
2118       }
2119     }
2120   }
2121 
GetStringChars(JNIEnv * env,jstring java_string,jboolean * is_copy)2122   static const jchar* GetStringChars(JNIEnv* env, jstring java_string, jboolean* is_copy) {
2123     CHECK_NON_NULL_ARGUMENT(java_string);
2124     ScopedObjectAccess soa(env);
2125     ObjPtr<mirror::String> s = soa.Decode<mirror::String>(java_string);
2126     gc::Heap* heap = Runtime::Current()->GetHeap();
2127     if (heap->IsMovableObject(s) || s->IsCompressed()) {
2128       jchar* chars = new jchar[s->GetLength()];
2129       if (s->IsCompressed()) {
2130         int32_t length = s->GetLength();
2131         const uint8_t* src = s->GetValueCompressed();
2132         for (int i = 0; i < length; ++i) {
2133           chars[i] = static_cast<jchar>(src[i]);
2134         }
2135       } else {
2136         memcpy(chars, s->GetValue(), sizeof(jchar) * s->GetLength());
2137       }
2138       if (is_copy != nullptr) {
2139         *is_copy = JNI_TRUE;
2140       }
2141       return chars;
2142     }
2143     if (is_copy != nullptr) {
2144       *is_copy = JNI_FALSE;
2145     }
2146     return static_cast<jchar*>(s->GetValue());
2147   }
2148 
ReleaseStringChars(JNIEnv * env,jstring java_string,const jchar * chars)2149   static void ReleaseStringChars(JNIEnv* env, jstring java_string, const jchar* chars) {
2150     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(java_string);
2151     ScopedObjectAccess soa(env);
2152     ObjPtr<mirror::String> s = soa.Decode<mirror::String>(java_string);
2153     if (s->IsCompressed() || (s->IsCompressed() == false && chars != s->GetValue())) {
2154       delete[] chars;
2155     }
2156   }
2157 
GetStringCritical(JNIEnv * env,jstring java_string,jboolean * is_copy)2158   static const jchar* GetStringCritical(JNIEnv* env, jstring java_string, jboolean* is_copy) {
2159     CHECK_NON_NULL_ARGUMENT(java_string);
2160     ScopedObjectAccess soa(env);
2161     ObjPtr<mirror::String> s = soa.Decode<mirror::String>(java_string);
2162     gc::Heap* heap = Runtime::Current()->GetHeap();
2163     if (s->IsCompressed()) {
2164       if (is_copy != nullptr) {
2165         *is_copy = JNI_TRUE;
2166       }
2167       int32_t length = s->GetLength();
2168       const uint8_t* src = s->GetValueCompressed();
2169       jchar* chars = new jchar[length];
2170       for (int i = 0; i < length; ++i) {
2171         chars[i] = static_cast<jchar>(src[i]);
2172       }
2173       return chars;
2174     } else {
2175       if (heap->IsMovableObject(s)) {
2176         StackHandleScope<1> hs(soa.Self());
2177         HandleWrapperObjPtr<mirror::String> h(hs.NewHandleWrapper(&s));
2178         if (!gUseReadBarrier && !gUseUserfaultfd) {
2179           heap->IncrementDisableMovingGC(soa.Self());
2180         } else {
2181           // For the CC and CMC collector, we only need to wait for the thread flip rather
2182           // than the whole GC to occur thanks to the to-space invariant.
2183           heap->IncrementDisableThreadFlip(soa.Self());
2184         }
2185       }
2186       // Ensure that the string doesn't cause userfaults in case passed on to
2187       // the kernel.
2188       heap->EnsureObjectUserfaulted(s);
2189       if (is_copy != nullptr) {
2190         *is_copy = JNI_FALSE;
2191       }
2192       return static_cast<jchar*>(s->GetValue());
2193     }
2194   }
2195 
ReleaseStringCritical(JNIEnv * env,jstring java_string,const jchar * chars)2196   static void ReleaseStringCritical(JNIEnv* env,
2197                                     jstring java_string,
2198                                     const jchar* chars) {
2199     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(java_string);
2200     ScopedObjectAccess soa(env);
2201     gc::Heap* heap = Runtime::Current()->GetHeap();
2202     ObjPtr<mirror::String> s = soa.Decode<mirror::String>(java_string);
2203     if (!s->IsCompressed() && heap->IsMovableObject(s)) {
2204       if (!gUseReadBarrier && !gUseUserfaultfd) {
2205         heap->DecrementDisableMovingGC(soa.Self());
2206       } else {
2207         heap->DecrementDisableThreadFlip(soa.Self());
2208       }
2209     }
2210     // TODO: For uncompressed strings GetStringCritical() always returns `s->GetValue()`.
2211     // Should we report an error if the user passes a different `chars`?
2212     if (s->IsCompressed() || (!s->IsCompressed() && s->GetValue() != chars)) {
2213       delete[] chars;
2214     }
2215   }
2216 
GetStringUTFChars(JNIEnv * env,jstring java_string,jboolean * is_copy)2217   static const char* GetStringUTFChars(JNIEnv* env, jstring java_string, jboolean* is_copy) {
2218     if (java_string == nullptr) {
2219       return nullptr;
2220     }
2221     if (is_copy != nullptr) {
2222       *is_copy = JNI_TRUE;
2223     }
2224 
2225     ScopedObjectAccess soa(env);
2226     ObjPtr<mirror::String> s = soa.Decode<mirror::String>(java_string);
2227     size_t length = s->GetLength();
2228     size_t byte_count =
2229         s->IsCompressed() ? length : GetUncompressedStringUTFLength(s->GetValue(), length);
2230     char* bytes = new char[byte_count + 1];
2231     CHECK(bytes != nullptr);  // bionic aborts anyway.
2232     if (s->IsCompressed()) {
2233       const uint8_t* src = s->GetValueCompressed();
2234       for (size_t i = 0; i < byte_count; ++i) {
2235         bytes[i] = src[i];
2236       }
2237     } else {
2238       char* end = GetUncompressedStringUTFChars(s->GetValue(), length, bytes);
2239       DCHECK_EQ(byte_count, static_cast<size_t>(end - bytes));
2240     }
2241     bytes[byte_count] = '\0';
2242     return bytes;
2243   }
2244 
ReleaseStringUTFChars(JNIEnv *,jstring,const char * chars)2245   static void ReleaseStringUTFChars(JNIEnv*, jstring, const char* chars) {
2246     delete[] chars;
2247   }
2248 
GetArrayLength(JNIEnv * env,jarray java_array)2249   static jsize GetArrayLength(JNIEnv* env, jarray java_array) {
2250     CHECK_NON_NULL_ARGUMENT_RETURN_ZERO(java_array);
2251     ScopedObjectAccess soa(env);
2252     ObjPtr<mirror::Object> obj = soa.Decode<mirror::Object>(java_array);
2253     if (UNLIKELY(!obj->IsArrayInstance())) {
2254       soa.Vm()->JniAbortF("GetArrayLength", "not an array: %s", obj->PrettyTypeOf().c_str());
2255       return 0;
2256     }
2257     ObjPtr<mirror::Array> array = obj->AsArray();
2258     return array->GetLength();
2259   }
2260 
GetObjectArrayElement(JNIEnv * env,jobjectArray java_array,jsize index)2261   static jobject GetObjectArrayElement(JNIEnv* env, jobjectArray java_array, jsize index) {
2262     CHECK_NON_NULL_ARGUMENT(java_array);
2263     ScopedObjectAccess soa(env);
2264     ObjPtr<mirror::ObjectArray<mirror::Object>> array =
2265         soa.Decode<mirror::ObjectArray<mirror::Object>>(java_array);
2266     return soa.AddLocalReference<jobject>(array->Get(index));
2267   }
2268 
SetObjectArrayElement(JNIEnv * env,jobjectArray java_array,jsize index,jobject java_value)2269   static void SetObjectArrayElement(JNIEnv* env, jobjectArray java_array, jsize index,
2270                                     jobject java_value) {
2271     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(java_array);
2272     ScopedObjectAccess soa(env);
2273     ObjPtr<mirror::ObjectArray<mirror::Object>> array =
2274         soa.Decode<mirror::ObjectArray<mirror::Object>>(java_array);
2275     ObjPtr<mirror::Object> value = soa.Decode<mirror::Object>(java_value);
2276     array->Set<false>(index, value);
2277   }
2278 
NewBooleanArray(JNIEnv * env,jsize length)2279   static jbooleanArray NewBooleanArray(JNIEnv* env, jsize length) {
2280     return NewPrimitiveArray<jbooleanArray, mirror::BooleanArray>(env, length);
2281   }
2282 
NewByteArray(JNIEnv * env,jsize length)2283   static jbyteArray NewByteArray(JNIEnv* env, jsize length) {
2284     return NewPrimitiveArray<jbyteArray, mirror::ByteArray>(env, length);
2285   }
2286 
NewCharArray(JNIEnv * env,jsize length)2287   static jcharArray NewCharArray(JNIEnv* env, jsize length) {
2288     return NewPrimitiveArray<jcharArray, mirror::CharArray>(env, length);
2289   }
2290 
NewDoubleArray(JNIEnv * env,jsize length)2291   static jdoubleArray NewDoubleArray(JNIEnv* env, jsize length) {
2292     return NewPrimitiveArray<jdoubleArray, mirror::DoubleArray>(env, length);
2293   }
2294 
NewFloatArray(JNIEnv * env,jsize length)2295   static jfloatArray NewFloatArray(JNIEnv* env, jsize length) {
2296     return NewPrimitiveArray<jfloatArray, mirror::FloatArray>(env, length);
2297   }
2298 
NewIntArray(JNIEnv * env,jsize length)2299   static jintArray NewIntArray(JNIEnv* env, jsize length) {
2300     return NewPrimitiveArray<jintArray, mirror::IntArray>(env, length);
2301   }
2302 
NewLongArray(JNIEnv * env,jsize length)2303   static jlongArray NewLongArray(JNIEnv* env, jsize length) {
2304     return NewPrimitiveArray<jlongArray, mirror::LongArray>(env, length);
2305   }
2306 
NewObjectArray(JNIEnv * env,jsize length,jclass element_jclass,jobject initial_element)2307   static jobjectArray NewObjectArray(JNIEnv* env, jsize length, jclass element_jclass,
2308                                      jobject initial_element) {
2309     if (UNLIKELY(length < 0)) {
2310       JavaVmExtFromEnv(env)->JniAbortF("NewObjectArray", "negative array length: %d", length);
2311       return nullptr;
2312     }
2313     CHECK_NON_NULL_ARGUMENT(element_jclass);
2314 
2315     // Compute the array class corresponding to the given element class.
2316     ScopedObjectAccess soa(env);
2317     ObjPtr<mirror::Class> array_class;
2318     {
2319       ObjPtr<mirror::Class> element_class = soa.Decode<mirror::Class>(element_jclass);
2320       if (UNLIKELY(element_class->IsPrimitive())) {
2321         soa.Vm()->JniAbortF("NewObjectArray",
2322                             "not an object type: %s",
2323                             element_class->PrettyDescriptor().c_str());
2324         return nullptr;
2325       }
2326       ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
2327       array_class = class_linker->FindArrayClass(soa.Self(), element_class);
2328       if (UNLIKELY(array_class == nullptr)) {
2329         return nullptr;
2330       }
2331     }
2332 
2333     // Allocate and initialize if necessary.
2334     ObjPtr<mirror::ObjectArray<mirror::Object>> result =
2335         mirror::ObjectArray<mirror::Object>::Alloc(soa.Self(), array_class, length);
2336     if (result != nullptr && initial_element != nullptr) {
2337       ObjPtr<mirror::Object> initial_object = soa.Decode<mirror::Object>(initial_element);
2338       if (initial_object != nullptr) {
2339         ObjPtr<mirror::Class> element_class = result->GetClass()->GetComponentType();
2340         if (UNLIKELY(!element_class->IsAssignableFrom(initial_object->GetClass()))) {
2341           soa.Vm()->JniAbortF("NewObjectArray", "cannot assign object of type '%s' to array with "
2342                               "element type of '%s'",
2343                               mirror::Class::PrettyDescriptor(initial_object->GetClass()).c_str(),
2344                               element_class->PrettyDescriptor().c_str());
2345           return nullptr;
2346         } else {
2347           for (jsize i = 0; i < length; ++i) {
2348             result->SetWithoutChecks<false>(i, initial_object);
2349           }
2350         }
2351       }
2352     }
2353     return soa.AddLocalReference<jobjectArray>(result);
2354   }
2355 
NewShortArray(JNIEnv * env,jsize length)2356   static jshortArray NewShortArray(JNIEnv* env, jsize length) {
2357     return NewPrimitiveArray<jshortArray, mirror::ShortArray>(env, length);
2358   }
2359 
GetPrimitiveArrayCritical(JNIEnv * env,jarray java_array,jboolean * is_copy)2360   static void* GetPrimitiveArrayCritical(JNIEnv* env, jarray java_array, jboolean* is_copy) {
2361     CHECK_NON_NULL_ARGUMENT(java_array);
2362     ScopedObjectAccess soa(env);
2363     ObjPtr<mirror::Array> array = soa.Decode<mirror::Array>(java_array);
2364     if (UNLIKELY(!array->GetClass()->IsPrimitiveArray())) {
2365       soa.Vm()->JniAbortF("GetPrimitiveArrayCritical", "expected primitive array, given %s",
2366                           array->GetClass()->PrettyDescriptor().c_str());
2367       return nullptr;
2368     }
2369     gc::Heap* heap = Runtime::Current()->GetHeap();
2370     if (heap->IsMovableObject(array)) {
2371       if (!gUseReadBarrier && !gUseUserfaultfd) {
2372         heap->IncrementDisableMovingGC(soa.Self());
2373       } else {
2374         // For the CC and CMC collector, we only need to wait for the thread flip rather
2375         // than the whole GC to occur thanks to the to-space invariant.
2376         heap->IncrementDisableThreadFlip(soa.Self());
2377       }
2378       // Re-decode in case the object moved since IncrementDisableGC waits for GC to complete.
2379       array = soa.Decode<mirror::Array>(java_array);
2380     }
2381     // Ensure that the array doesn't cause userfaults in case passed on to the kernel.
2382     heap->EnsureObjectUserfaulted(array);
2383     if (is_copy != nullptr) {
2384       *is_copy = JNI_FALSE;
2385     }
2386     return array->GetRawData(array->GetClass()->GetComponentSize(), 0);
2387   }
2388 
ReleasePrimitiveArrayCritical(JNIEnv * env,jarray java_array,void * elements,jint mode)2389   static void ReleasePrimitiveArrayCritical(JNIEnv* env, jarray java_array, void* elements,
2390                                             jint mode) {
2391     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(java_array);
2392     ScopedObjectAccess soa(env);
2393     ObjPtr<mirror::Array> array = soa.Decode<mirror::Array>(java_array);
2394     if (UNLIKELY(!array->GetClass()->IsPrimitiveArray())) {
2395       soa.Vm()->JniAbortF("ReleasePrimitiveArrayCritical", "expected primitive array, given %s",
2396                           array->GetClass()->PrettyDescriptor().c_str());
2397       return;
2398     }
2399     const size_t component_size = array->GetClass()->GetComponentSize();
2400     ReleasePrimitiveArray(soa, array, component_size, elements, mode);
2401   }
2402 
GetBooleanArrayElements(JNIEnv * env,jbooleanArray array,jboolean * is_copy)2403   static jboolean* GetBooleanArrayElements(JNIEnv* env, jbooleanArray array, jboolean* is_copy) {
2404     return GetPrimitiveArray<jbooleanArray, jboolean, mirror::BooleanArray>(env, array, is_copy);
2405   }
2406 
GetByteArrayElements(JNIEnv * env,jbyteArray array,jboolean * is_copy)2407   static jbyte* GetByteArrayElements(JNIEnv* env, jbyteArray array, jboolean* is_copy) {
2408     return GetPrimitiveArray<jbyteArray, jbyte, mirror::ByteArray>(env, array, is_copy);
2409   }
2410 
GetCharArrayElements(JNIEnv * env,jcharArray array,jboolean * is_copy)2411   static jchar* GetCharArrayElements(JNIEnv* env, jcharArray array, jboolean* is_copy) {
2412     return GetPrimitiveArray<jcharArray, jchar, mirror::CharArray>(env, array, is_copy);
2413   }
2414 
GetDoubleArrayElements(JNIEnv * env,jdoubleArray array,jboolean * is_copy)2415   static jdouble* GetDoubleArrayElements(JNIEnv* env, jdoubleArray array, jboolean* is_copy) {
2416     return GetPrimitiveArray<jdoubleArray, jdouble, mirror::DoubleArray>(env, array, is_copy);
2417   }
2418 
GetFloatArrayElements(JNIEnv * env,jfloatArray array,jboolean * is_copy)2419   static jfloat* GetFloatArrayElements(JNIEnv* env, jfloatArray array, jboolean* is_copy) {
2420     return GetPrimitiveArray<jfloatArray, jfloat, mirror::FloatArray>(env, array, is_copy);
2421   }
2422 
GetIntArrayElements(JNIEnv * env,jintArray array,jboolean * is_copy)2423   static jint* GetIntArrayElements(JNIEnv* env, jintArray array, jboolean* is_copy) {
2424     return GetPrimitiveArray<jintArray, jint, mirror::IntArray>(env, array, is_copy);
2425   }
2426 
GetLongArrayElements(JNIEnv * env,jlongArray array,jboolean * is_copy)2427   static jlong* GetLongArrayElements(JNIEnv* env, jlongArray array, jboolean* is_copy) {
2428     return GetPrimitiveArray<jlongArray, jlong, mirror::LongArray>(env, array, is_copy);
2429   }
2430 
GetShortArrayElements(JNIEnv * env,jshortArray array,jboolean * is_copy)2431   static jshort* GetShortArrayElements(JNIEnv* env, jshortArray array, jboolean* is_copy) {
2432     return GetPrimitiveArray<jshortArray, jshort, mirror::ShortArray>(env, array, is_copy);
2433   }
2434 
ReleaseBooleanArrayElements(JNIEnv * env,jbooleanArray array,jboolean * elements,jint mode)2435   static void ReleaseBooleanArrayElements(JNIEnv* env, jbooleanArray array, jboolean* elements,
2436                                           jint mode) {
2437     ReleasePrimitiveArray<jbooleanArray, jboolean, mirror::BooleanArray>(env, array, elements,
2438                                                                          mode);
2439   }
2440 
ReleaseByteArrayElements(JNIEnv * env,jbyteArray array,jbyte * elements,jint mode)2441   static void ReleaseByteArrayElements(JNIEnv* env, jbyteArray array, jbyte* elements, jint mode) {
2442     ReleasePrimitiveArray<jbyteArray, jbyte, mirror::ByteArray>(env, array, elements, mode);
2443   }
2444 
ReleaseCharArrayElements(JNIEnv * env,jcharArray array,jchar * elements,jint mode)2445   static void ReleaseCharArrayElements(JNIEnv* env, jcharArray array, jchar* elements, jint mode) {
2446     ReleasePrimitiveArray<jcharArray, jchar, mirror::CharArray>(env, array, elements, mode);
2447   }
2448 
ReleaseDoubleArrayElements(JNIEnv * env,jdoubleArray array,jdouble * elements,jint mode)2449   static void ReleaseDoubleArrayElements(JNIEnv* env, jdoubleArray array, jdouble* elements,
2450                                          jint mode) {
2451     ReleasePrimitiveArray<jdoubleArray, jdouble, mirror::DoubleArray>(env, array, elements, mode);
2452   }
2453 
ReleaseFloatArrayElements(JNIEnv * env,jfloatArray array,jfloat * elements,jint mode)2454   static void ReleaseFloatArrayElements(JNIEnv* env, jfloatArray array, jfloat* elements,
2455                                         jint mode) {
2456     ReleasePrimitiveArray<jfloatArray, jfloat, mirror::FloatArray>(env, array, elements, mode);
2457   }
2458 
ReleaseIntArrayElements(JNIEnv * env,jintArray array,jint * elements,jint mode)2459   static void ReleaseIntArrayElements(JNIEnv* env, jintArray array, jint* elements, jint mode) {
2460     ReleasePrimitiveArray<jintArray, jint, mirror::IntArray>(env, array, elements, mode);
2461   }
2462 
ReleaseLongArrayElements(JNIEnv * env,jlongArray array,jlong * elements,jint mode)2463   static void ReleaseLongArrayElements(JNIEnv* env, jlongArray array, jlong* elements, jint mode) {
2464     ReleasePrimitiveArray<jlongArray, jlong, mirror::LongArray>(env, array, elements, mode);
2465   }
2466 
ReleaseShortArrayElements(JNIEnv * env,jshortArray array,jshort * elements,jint mode)2467   static void ReleaseShortArrayElements(JNIEnv* env, jshortArray array, jshort* elements,
2468                                         jint mode) {
2469     ReleasePrimitiveArray<jshortArray, jshort, mirror::ShortArray>(env, array, elements, mode);
2470   }
2471 
GetBooleanArrayRegion(JNIEnv * env,jbooleanArray array,jsize start,jsize length,jboolean * buf)2472   static void GetBooleanArrayRegion(JNIEnv* env, jbooleanArray array, jsize start, jsize length,
2473                                     jboolean* buf) {
2474     GetPrimitiveArrayRegion<jbooleanArray, jboolean, mirror::BooleanArray>(env, array, start,
2475                                                                            length, buf);
2476   }
2477 
GetByteArrayRegion(JNIEnv * env,jbyteArray array,jsize start,jsize length,jbyte * buf)2478   static void GetByteArrayRegion(JNIEnv* env, jbyteArray array, jsize start, jsize length,
2479                                  jbyte* buf) {
2480     GetPrimitiveArrayRegion<jbyteArray, jbyte, mirror::ByteArray>(env, array, start, length, buf);
2481   }
2482 
GetCharArrayRegion(JNIEnv * env,jcharArray array,jsize start,jsize length,jchar * buf)2483   static void GetCharArrayRegion(JNIEnv* env, jcharArray array, jsize start, jsize length,
2484                                  jchar* buf) {
2485     GetPrimitiveArrayRegion<jcharArray, jchar, mirror::CharArray>(env, array, start, length, buf);
2486   }
2487 
GetDoubleArrayRegion(JNIEnv * env,jdoubleArray array,jsize start,jsize length,jdouble * buf)2488   static void GetDoubleArrayRegion(JNIEnv* env, jdoubleArray array, jsize start, jsize length,
2489                                    jdouble* buf) {
2490     GetPrimitiveArrayRegion<jdoubleArray, jdouble, mirror::DoubleArray>(env, array, start, length,
2491                                                                         buf);
2492   }
2493 
GetFloatArrayRegion(JNIEnv * env,jfloatArray array,jsize start,jsize length,jfloat * buf)2494   static void GetFloatArrayRegion(JNIEnv* env, jfloatArray array, jsize start, jsize length,
2495                                   jfloat* buf) {
2496     GetPrimitiveArrayRegion<jfloatArray, jfloat, mirror::FloatArray>(env, array, start, length,
2497                                                                      buf);
2498   }
2499 
GetIntArrayRegion(JNIEnv * env,jintArray array,jsize start,jsize length,jint * buf)2500   static void GetIntArrayRegion(JNIEnv* env, jintArray array, jsize start, jsize length,
2501                                 jint* buf) {
2502     GetPrimitiveArrayRegion<jintArray, jint, mirror::IntArray>(env, array, start, length, buf);
2503   }
2504 
GetLongArrayRegion(JNIEnv * env,jlongArray array,jsize start,jsize length,jlong * buf)2505   static void GetLongArrayRegion(JNIEnv* env, jlongArray array, jsize start, jsize length,
2506                                  jlong* buf) {
2507     GetPrimitiveArrayRegion<jlongArray, jlong, mirror::LongArray>(env, array, start, length, buf);
2508   }
2509 
GetShortArrayRegion(JNIEnv * env,jshortArray array,jsize start,jsize length,jshort * buf)2510   static void GetShortArrayRegion(JNIEnv* env, jshortArray array, jsize start, jsize length,
2511                                   jshort* buf) {
2512     GetPrimitiveArrayRegion<jshortArray, jshort, mirror::ShortArray>(env, array, start, length,
2513                                                                      buf);
2514   }
2515 
SetBooleanArrayRegion(JNIEnv * env,jbooleanArray array,jsize start,jsize length,const jboolean * buf)2516   static void SetBooleanArrayRegion(JNIEnv* env, jbooleanArray array, jsize start, jsize length,
2517                                     const jboolean* buf) {
2518     SetPrimitiveArrayRegion<jbooleanArray, jboolean, mirror::BooleanArray>(env, array, start,
2519                                                                            length, buf);
2520   }
2521 
SetByteArrayRegion(JNIEnv * env,jbyteArray array,jsize start,jsize length,const jbyte * buf)2522   static void SetByteArrayRegion(JNIEnv* env, jbyteArray array, jsize start, jsize length,
2523                                  const jbyte* buf) {
2524     SetPrimitiveArrayRegion<jbyteArray, jbyte, mirror::ByteArray>(env, array, start, length, buf);
2525   }
2526 
SetCharArrayRegion(JNIEnv * env,jcharArray array,jsize start,jsize length,const jchar * buf)2527   static void SetCharArrayRegion(JNIEnv* env, jcharArray array, jsize start, jsize length,
2528                                  const jchar* buf) {
2529     SetPrimitiveArrayRegion<jcharArray, jchar, mirror::CharArray>(env, array, start, length, buf);
2530   }
2531 
SetDoubleArrayRegion(JNIEnv * env,jdoubleArray array,jsize start,jsize length,const jdouble * buf)2532   static void SetDoubleArrayRegion(JNIEnv* env, jdoubleArray array, jsize start, jsize length,
2533                                    const jdouble* buf) {
2534     SetPrimitiveArrayRegion<jdoubleArray, jdouble, mirror::DoubleArray>(env, array, start, length,
2535                                                                         buf);
2536   }
2537 
SetFloatArrayRegion(JNIEnv * env,jfloatArray array,jsize start,jsize length,const jfloat * buf)2538   static void SetFloatArrayRegion(JNIEnv* env, jfloatArray array, jsize start, jsize length,
2539                                   const jfloat* buf) {
2540     SetPrimitiveArrayRegion<jfloatArray, jfloat, mirror::FloatArray>(env, array, start, length,
2541                                                                      buf);
2542   }
2543 
SetIntArrayRegion(JNIEnv * env,jintArray array,jsize start,jsize length,const jint * buf)2544   static void SetIntArrayRegion(JNIEnv* env, jintArray array, jsize start, jsize length,
2545                                 const jint* buf) {
2546     SetPrimitiveArrayRegion<jintArray, jint, mirror::IntArray>(env, array, start, length, buf);
2547   }
2548 
SetLongArrayRegion(JNIEnv * env,jlongArray array,jsize start,jsize length,const jlong * buf)2549   static void SetLongArrayRegion(JNIEnv* env, jlongArray array, jsize start, jsize length,
2550                                  const jlong* buf) {
2551     SetPrimitiveArrayRegion<jlongArray, jlong, mirror::LongArray>(env, array, start, length, buf);
2552   }
2553 
SetShortArrayRegion(JNIEnv * env,jshortArray array,jsize start,jsize length,const jshort * buf)2554   static void SetShortArrayRegion(JNIEnv* env, jshortArray array, jsize start, jsize length,
2555                                   const jshort* buf) {
2556     SetPrimitiveArrayRegion<jshortArray, jshort, mirror::ShortArray>(env, array, start, length,
2557                                                                      buf);
2558   }
2559 
RegisterNatives(JNIEnv * env,jclass java_class,const JNINativeMethod * methods,jint method_count)2560   static jint RegisterNatives(JNIEnv* env,
2561                               jclass java_class,
2562                               const JNINativeMethod* methods,
2563                               jint method_count) {
2564     if (UNLIKELY(method_count < 0)) {
2565       JavaVmExtFromEnv(env)->JniAbortF("RegisterNatives", "negative method count: %d",
2566                                        method_count);
2567       return JNI_ERR;  // Not reached except in unit tests.
2568     }
2569     CHECK_NON_NULL_ARGUMENT_FN_NAME("RegisterNatives", java_class, JNI_ERR);
2570     ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
2571     ScopedObjectAccess soa(env);
2572     StackHandleScope<1> hs(soa.Self());
2573     Handle<mirror::Class> c = hs.NewHandle(soa.Decode<mirror::Class>(java_class));
2574     if (UNLIKELY(method_count == 0)) {
2575       LOG(WARNING) << "JNI RegisterNativeMethods: attempt to register 0 native methods for "
2576                    << c->PrettyDescriptor();
2577       return JNI_OK;
2578     }
2579     ScopedLocalRef<jobject> jclass_loader(env, nullptr);
2580     if (c->GetClassLoader() != nullptr) {
2581       jclass_loader.reset(soa.Env()->AddLocalReference<jobject>(c->GetClassLoader()));
2582     }
2583 
2584     bool is_class_loader_namespace_natively_bridged = false;
2585     {
2586       // Making sure to release mutator_lock_ before proceeding.
2587       // FindNativeLoaderNamespaceByClassLoader eventually acquires lock on g_namespaces_mutex
2588       // which may cause a deadlock if another thread is waiting for mutator_lock_
2589       // for IsSameObject call in libnativeloader's CreateClassLoaderNamespace (which happens
2590       // under g_namespace_mutex lock)
2591       ScopedThreadSuspension sts(soa.Self(), ThreadState::kNative);
2592 
2593       is_class_loader_namespace_natively_bridged =
2594           IsClassLoaderNamespaceNativelyBridged(env, jclass_loader.get());
2595     }
2596 
2597     CHECK_NON_NULL_ARGUMENT_FN_NAME("RegisterNatives", methods, JNI_ERR);
2598     for (jint i = 0; i < method_count; ++i) {
2599       const char* name = methods[i].name;
2600       const char* sig = methods[i].signature;
2601       const void* fnPtr = methods[i].fnPtr;
2602       if (UNLIKELY(name == nullptr)) {
2603         ReportInvalidJNINativeMethod(soa, c.Get(), "method name", i);
2604         return JNI_ERR;
2605       } else if (UNLIKELY(sig == nullptr)) {
2606         ReportInvalidJNINativeMethod(soa, c.Get(), "method signature", i);
2607         return JNI_ERR;
2608       } else if (UNLIKELY(fnPtr == nullptr)) {
2609         ReportInvalidJNINativeMethod(soa, c.Get(), "native function", i);
2610         return JNI_ERR;
2611       }
2612       bool is_fast = false;
2613       // Notes about fast JNI calls:
2614       //
2615       // On a normal JNI call, the calling thread usually transitions
2616       // from the kRunnable state to the kNative state. But if the
2617       // called native function needs to access any Java object, it
2618       // will have to transition back to the kRunnable state.
2619       //
2620       // There is a cost to this double transition. For a JNI call
2621       // that should be quick, this cost may dominate the call cost.
2622       //
2623       // On a fast JNI call, the calling thread avoids this double
2624       // transition by not transitioning from kRunnable to kNative and
2625       // stays in the kRunnable state.
2626       //
2627       // There are risks to using a fast JNI call because it can delay
2628       // a response to a thread suspension request which is typically
2629       // used for a GC root scanning, etc. If a fast JNI call takes a
2630       // long time, it could cause longer thread suspension latency
2631       // and GC pauses.
2632       //
2633       // Thus, fast JNI should be used with care. It should be used
2634       // for a JNI call that takes a short amount of time (eg. no
2635       // long-running loop) and does not block (eg. no locks, I/O,
2636       // etc.)
2637       //
2638       // A '!' prefix in the signature in the JNINativeMethod
2639       // indicates that it's a fast JNI call and the runtime omits the
2640       // thread state transition from kRunnable to kNative at the
2641       // entry.
2642       if (*sig == '!') {
2643         is_fast = true;
2644         ++sig;
2645       }
2646 
2647       // Note: the right order is to try to find the method locally
2648       // first, either as a direct or a virtual method. Then move to
2649       // the parent.
2650       ArtMethod* m = nullptr;
2651       bool warn_on_going_to_parent = down_cast<JNIEnvExt*>(env)->GetVm()->IsCheckJniEnabled();
2652       for (ObjPtr<mirror::Class> current_class = c.Get();
2653            current_class != nullptr;
2654            current_class = current_class->GetSuperClass()) {
2655         // Search first only comparing methods which are native.
2656         m = FindMethod<true>(current_class, name, sig);
2657         if (m != nullptr) {
2658           break;
2659         }
2660 
2661         // Search again comparing to all methods, to find non-native methods that match.
2662         m = FindMethod<false>(current_class, name, sig);
2663         if (m != nullptr) {
2664           break;
2665         }
2666 
2667         if (warn_on_going_to_parent) {
2668           LOG(WARNING) << "CheckJNI: method to register \"" << name << "\" not in the given class. "
2669                        << "This is slow, consider changing your RegisterNatives calls.";
2670           warn_on_going_to_parent = false;
2671         }
2672       }
2673 
2674       if (m == nullptr) {
2675         c->DumpClass(LOG_STREAM(ERROR), mirror::Class::kDumpClassFullDetail);
2676         LOG(ERROR)
2677             << "Failed to register native method "
2678             << c->PrettyDescriptor() << "." << name << sig << " in "
2679             << c->GetDexCache()->GetLocation()->ToModifiedUtf8();
2680         ThrowNoSuchMethodError(soa, c.Get(), name, sig, "static or non-static");
2681         return JNI_ERR;
2682       } else if (!m->IsNative()) {
2683         LOG(ERROR)
2684             << "Failed to register non-native method "
2685             << c->PrettyDescriptor() << "." << name << sig
2686             << " as native";
2687         ThrowNoSuchMethodError(soa, c.Get(), name, sig, "native");
2688         return JNI_ERR;
2689       }
2690 
2691       VLOG(jni) << "[Registering JNI native method " << m->PrettyMethod() << "]";
2692 
2693       if (UNLIKELY(is_fast)) {
2694         // There are a few reasons to switch:
2695         // 1) We don't support !bang JNI anymore, it will turn to a hard error later.
2696         // 2) @FastNative is actually faster. At least 1.5x faster than !bang JNI.
2697         //    and switching is super easy, remove ! in C code, add annotation in .java code.
2698         // 3) Good chance of hitting DCHECK failures in ScopedFastNativeObjectAccess
2699         //    since that checks for presence of @FastNative and not for ! in the descriptor.
2700         LOG(WARNING) << "!bang JNI is deprecated. Switch to @FastNative for " << m->PrettyMethod();
2701         is_fast = false;
2702         // TODO: make this a hard register error in the future.
2703       }
2704 
2705       // It is possible to link a class with native methods from a library loaded by
2706       // a different classloader. In this case IsClassLoaderNamespaceNativelyBridged
2707       // fails detect if native bridge is enabled and may return false.
2708       // For this reason we always check method with native bridge (see b/393035780
2709       // for details).
2710       if (is_class_loader_namespace_natively_bridged ||
2711           android::NativeBridgeIsNativeBridgeFunctionPointer(fnPtr)) {
2712         fnPtr = GenerateNativeBridgeTrampoline(fnPtr, m);
2713       }
2714       const void* final_function_ptr = class_linker->RegisterNative(soa.Self(), m, fnPtr);
2715       UNUSED(final_function_ptr);
2716     }
2717     return JNI_OK;
2718   }
2719 
UnregisterNatives(JNIEnv * env,jclass java_class)2720   static jint UnregisterNatives(JNIEnv* env, jclass java_class) {
2721     CHECK_NON_NULL_ARGUMENT_RETURN(java_class, JNI_ERR);
2722     ScopedObjectAccess soa(env);
2723     ObjPtr<mirror::Class> c = soa.Decode<mirror::Class>(java_class);
2724 
2725     VLOG(jni) << "[Unregistering JNI native methods for " << mirror::Class::PrettyClass(c) << "]";
2726 
2727     size_t unregistered_count = 0;
2728     ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
2729     auto pointer_size = class_linker->GetImagePointerSize();
2730     for (auto& m : c->GetMethods(pointer_size)) {
2731       if (m.IsNative()) {
2732         class_linker->UnregisterNative(soa.Self(), &m);
2733         unregistered_count++;
2734       }
2735     }
2736 
2737     if (unregistered_count == 0) {
2738       LOG(WARNING) << "JNI UnregisterNatives: attempt to unregister native methods of class '"
2739           << mirror::Class::PrettyDescriptor(c) << "' that contains no native methods";
2740     }
2741     return JNI_OK;
2742   }
2743 
MonitorEnter(JNIEnv * env,jobject java_object)2744   static jint MonitorEnter(JNIEnv* env, jobject java_object) NO_THREAD_SAFETY_ANALYSIS {
2745     CHECK_NON_NULL_ARGUMENT_RETURN(java_object, JNI_ERR);
2746     ScopedObjectAccess soa(env);
2747     ObjPtr<mirror::Object> o = soa.Decode<mirror::Object>(java_object);
2748     o = o->MonitorEnter(soa.Self());
2749     if (soa.Self()->HoldsLock(o)) {
2750       soa.Env()->monitors_.Add(o);
2751     }
2752     if (soa.Self()->IsExceptionPending()) {
2753       return JNI_ERR;
2754     }
2755     return JNI_OK;
2756   }
2757 
MonitorExit(JNIEnv * env,jobject java_object)2758   static jint MonitorExit(JNIEnv* env, jobject java_object) NO_THREAD_SAFETY_ANALYSIS {
2759     CHECK_NON_NULL_ARGUMENT_RETURN(java_object, JNI_ERR);
2760     ScopedObjectAccess soa(env);
2761     ObjPtr<mirror::Object> o = soa.Decode<mirror::Object>(java_object);
2762     bool remove_mon = soa.Self()->HoldsLock(o);
2763     o->MonitorExit(soa.Self());
2764     if (remove_mon) {
2765       soa.Env()->monitors_.Remove(o);
2766     }
2767     if (soa.Self()->IsExceptionPending()) {
2768       return JNI_ERR;
2769     }
2770     return JNI_OK;
2771   }
2772 
GetJavaVM(JNIEnv * env,JavaVM ** vm)2773   static jint GetJavaVM(JNIEnv* env, JavaVM** vm) {
2774     CHECK_NON_NULL_ARGUMENT_RETURN(vm, JNI_ERR);
2775     Runtime* runtime = Runtime::Current();
2776     if (runtime != nullptr) {
2777       *vm = runtime->GetJavaVM();
2778     } else {
2779       *vm = nullptr;
2780     }
2781     return (*vm != nullptr) ? JNI_OK : JNI_ERR;
2782   }
2783 
NewDirectByteBuffer(JNIEnv * env,void * address,jlong capacity)2784   static jobject NewDirectByteBuffer(JNIEnv* env, void* address, jlong capacity) {
2785     if (capacity < 0) {
2786       JavaVmExtFromEnv(env)->JniAbortF("NewDirectByteBuffer", "negative buffer capacity: %" PRId64,
2787                                        capacity);
2788       return nullptr;
2789     }
2790     if (address == nullptr && capacity != 0) {
2791       JavaVmExtFromEnv(env)->JniAbortF("NewDirectByteBuffer",
2792                                        "non-zero capacity for nullptr pointer: %" PRId64, capacity);
2793       return nullptr;
2794     }
2795 
2796     // At the moment, the capacity of DirectByteBuffer is limited to a signed int.
2797     if (capacity > INT_MAX) {
2798       JavaVmExtFromEnv(env)->JniAbortF("NewDirectByteBuffer",
2799                                        "buffer capacity greater than maximum jint: %" PRId64,
2800                                        capacity);
2801       return nullptr;
2802     }
2803     jlong address_arg = reinterpret_cast<jlong>(address);
2804     jint capacity_arg = static_cast<jint>(capacity);
2805 
2806     ScopedObjectAccess soa(env);
2807     return soa.AddLocalReference<jobject>(
2808         WellKnownClasses::java_nio_DirectByteBuffer_init->NewObject<'J', 'I'>(
2809             soa.Self(), address_arg, capacity_arg));
2810   }
2811 
GetDirectBufferAddress(JNIEnv * env,jobject java_buffer)2812   static void* GetDirectBufferAddress(JNIEnv* env, jobject java_buffer) {
2813     // Return null if |java_buffer| is not defined.
2814     if (java_buffer == nullptr) {
2815       return nullptr;
2816     }
2817 
2818     ScopedObjectAccess soa(env);
2819     ObjPtr<mirror::Object> buffer = soa.Decode<mirror::Object>(java_buffer);
2820 
2821     // Return null if |java_buffer| is not a java.nio.Buffer instance.
2822     if (!buffer->InstanceOf(WellKnownClasses::java_nio_Buffer.Get())) {
2823       return nullptr;
2824     }
2825 
2826     // Buffer.address is non-null when the |java_buffer| is direct.
2827     return reinterpret_cast<void*>(WellKnownClasses::java_nio_Buffer_address->GetLong(buffer));
2828   }
2829 
GetDirectBufferCapacity(JNIEnv * env,jobject java_buffer)2830   static jlong GetDirectBufferCapacity(JNIEnv* env, jobject java_buffer) {
2831     if (java_buffer == nullptr) {
2832       return -1;
2833     }
2834 
2835     ScopedObjectAccess soa(env);
2836     StackHandleScope<1u> hs(soa.Self());
2837     Handle<mirror::Object> buffer = hs.NewHandle(soa.Decode<mirror::Object>(java_buffer));
2838     if (!buffer->InstanceOf(WellKnownClasses::java_nio_Buffer.Get())) {
2839       return -1;
2840     }
2841 
2842     // When checking the buffer capacity, it's important to note that a zero-sized direct buffer
2843     // may have a null address field which means we can't tell whether it is direct or not.
2844     // We therefore call Buffer.isDirect(). One path that creates such a buffer is
2845     // FileChannel.map() if the file size is zero.
2846     //
2847     // NB GetDirectBufferAddress() does not need to call `Buffer.isDirect()` since it is only
2848     // able return a valid address if the Buffer address field is not-null.
2849     //
2850     // Note: We can hit a `StackOverflowError` during the invocation but `Buffer.isDirect()`
2851     // implementations should not otherwise throw any exceptions.
2852     bool direct = WellKnownClasses::java_nio_Buffer_isDirect->InvokeVirtual<'Z'>(
2853         soa.Self(), buffer.Get());
2854     if (UNLIKELY(soa.Self()->IsExceptionPending()) || !direct) {
2855       return -1;
2856     }
2857 
2858     return static_cast<jlong>(WellKnownClasses::java_nio_Buffer_capacity->GetInt(buffer.Get()));
2859   }
2860 
GetObjectRefType(JNIEnv * env,jobject java_object)2861   static jobjectRefType GetObjectRefType([[maybe_unused]] JNIEnv* env, jobject java_object) {
2862     if (java_object == nullptr) {
2863       return JNIInvalidRefType;
2864     }
2865 
2866     // Do we definitely know what kind of reference this is?
2867     IndirectRef ref = reinterpret_cast<IndirectRef>(java_object);
2868     IndirectRefKind kind = IndirectReferenceTable::GetIndirectRefKind(ref);
2869     switch (kind) {
2870     case kLocal:
2871       return JNILocalRefType;
2872     case kGlobal:
2873       return JNIGlobalRefType;
2874     case kWeakGlobal:
2875       return JNIWeakGlobalRefType;
2876     case kJniTransition:
2877       // Assume value is in a JNI transition frame.
2878       return JNILocalRefType;
2879     }
2880     LOG(FATAL) << "IndirectRefKind[" << kind << "]";
2881     UNREACHABLE();
2882   }
2883 
2884  private:
EnsureLocalCapacityInternal(ScopedObjectAccess & soa,jint desired_capacity,const char * caller)2885   static jint EnsureLocalCapacityInternal(ScopedObjectAccess& soa, jint desired_capacity,
2886                                           const char* caller)
2887       REQUIRES_SHARED(Locks::mutator_lock_) {
2888     if (desired_capacity > 0) {
2889       std::string error_msg;
2890       if (!soa.Env()->locals_.EnsureFreeCapacity(static_cast<size_t>(desired_capacity),
2891                                                  &error_msg)) {
2892         std::string caller_error = android::base::StringPrintf("%s: %s", caller,
2893                                                                error_msg.c_str());
2894         soa.Self()->ThrowOutOfMemoryError(caller_error.c_str());
2895         return JNI_ERR;
2896       }
2897     } else if (desired_capacity < 0) {
2898       LOG(ERROR) << "Invalid capacity given to " << caller << ": " << desired_capacity;
2899       return JNI_ERR;
2900     }  // The zero case is a no-op.
2901     return JNI_OK;
2902   }
2903 
2904   template<typename JniT, typename ArtT>
NewPrimitiveArray(JNIEnv * env,jsize length)2905   static JniT NewPrimitiveArray(JNIEnv* env, jsize length) {
2906     ScopedObjectAccess soa(env);
2907     if (UNLIKELY(length < 0)) {
2908       soa.Vm()->JniAbortF("NewPrimitiveArray", "negative array length: %d", length);
2909       return nullptr;
2910     }
2911     ObjPtr<ArtT> result = ArtT::Alloc(soa.Self(), length);
2912     return soa.AddLocalReference<JniT>(result);
2913   }
2914 
2915   template <typename JArrayT, typename ElementT, typename ArtArrayT>
DecodeAndCheckArrayType(ScopedObjectAccess & soa,JArrayT java_array,const char * fn_name,const char * operation)2916   static ObjPtr<ArtArrayT> DecodeAndCheckArrayType(ScopedObjectAccess& soa,
2917                                                    JArrayT java_array,
2918                                                    const char* fn_name,
2919                                                    const char* operation)
2920       REQUIRES_SHARED(Locks::mutator_lock_) {
2921     ObjPtr<ArtArrayT> array = soa.Decode<ArtArrayT>(java_array);
2922     ObjPtr<mirror::Class> expected_array_class = GetClassRoot<ArtArrayT>();
2923     if (UNLIKELY(expected_array_class != array->GetClass())) {
2924       soa.Vm()->JniAbortF(fn_name,
2925                           "attempt to %s %s primitive array elements with an object of type %s",
2926                           operation,
2927                           mirror::Class::PrettyDescriptor(
2928                               expected_array_class->GetComponentType()).c_str(),
2929                           mirror::Class::PrettyDescriptor(array->GetClass()).c_str());
2930       return nullptr;
2931     }
2932     DCHECK_EQ(sizeof(ElementT), array->GetClass()->GetComponentSize());
2933     return array;
2934   }
2935 
IsClassLoaderNamespaceNativelyBridged(JNIEnv * env,jobject jclass_loader)2936   static bool IsClassLoaderNamespaceNativelyBridged(JNIEnv* env, jobject jclass_loader) {
2937 #if defined(ART_TARGET_ANDROID)
2938     android::NativeLoaderNamespace* ns =
2939         android::FindNativeLoaderNamespaceByClassLoader(env, jclass_loader);
2940     return ns != nullptr && android::IsNamespaceNativeBridged(ns);
2941 #else
2942     UNUSED(env, jclass_loader);
2943     return false;
2944 #endif
2945   }
2946 
GenerateNativeBridgeTrampoline(const void * fn_ptr,ArtMethod * method)2947   static const void* GenerateNativeBridgeTrampoline(const void* fn_ptr, ArtMethod* method)
2948       REQUIRES_SHARED(Locks::mutator_lock_) {
2949 #if defined(ART_TARGET_ANDROID)
2950     uint32_t shorty_length;
2951     const char* shorty = method->GetShorty(&shorty_length);
2952     android::JNICallType jni_call_type = method->IsCriticalNative() ?
2953                                              android::JNICallType::kJNICallTypeCriticalNative :
2954                                              android::JNICallType::kJNICallTypeRegular;
2955     return NativeBridgeGetTrampolineForFunctionPointer(
2956         fn_ptr, shorty, shorty_length, jni_call_type);
2957 #else
2958     UNUSED(method);
2959     return fn_ptr;
2960 #endif
2961   }
2962 
2963   template <typename ArrayT, typename ElementT, typename ArtArrayT>
GetPrimitiveArray(JNIEnv * env,ArrayT java_array,jboolean * is_copy)2964   static ElementT* GetPrimitiveArray(JNIEnv* env, ArrayT java_array, jboolean* is_copy) {
2965     CHECK_NON_NULL_ARGUMENT(java_array);
2966     ScopedObjectAccess soa(env);
2967     ObjPtr<ArtArrayT> array = DecodeAndCheckArrayType<ArrayT, ElementT, ArtArrayT>(
2968         soa, java_array, "GetArrayElements", "get");
2969     if (UNLIKELY(array == nullptr)) {
2970       return nullptr;
2971     }
2972     // Only make a copy if necessary.
2973     if (Runtime::Current()->GetHeap()->IsMovableObject(array)) {
2974       if (is_copy != nullptr) {
2975         *is_copy = JNI_TRUE;
2976       }
2977       const size_t component_size = sizeof(ElementT);
2978       size_t size = array->GetLength() * component_size;
2979       void* data = new uint64_t[RoundUp(size, 8) / 8];
2980       memcpy(data, array->GetData(), size);
2981       return reinterpret_cast<ElementT*>(data);
2982     } else {
2983       if (is_copy != nullptr) {
2984         *is_copy = JNI_FALSE;
2985       }
2986       return reinterpret_cast<ElementT*>(array->GetData());
2987     }
2988   }
2989 
2990   template <typename ArrayT, typename ElementT, typename ArtArrayT>
ReleasePrimitiveArray(JNIEnv * env,ArrayT java_array,ElementT * elements,jint mode)2991   static void ReleasePrimitiveArray(JNIEnv* env, ArrayT java_array, ElementT* elements, jint mode) {
2992     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(java_array);
2993     ScopedObjectAccess soa(env);
2994     ObjPtr<ArtArrayT> array = DecodeAndCheckArrayType<ArrayT, ElementT, ArtArrayT>(
2995         soa, java_array, "ReleaseArrayElements", "release");
2996     if (array == nullptr) {
2997       return;
2998     }
2999     ReleasePrimitiveArray(soa, array, sizeof(ElementT), elements, mode);
3000   }
3001 
ReleasePrimitiveArray(ScopedObjectAccess & soa,ObjPtr<mirror::Array> array,size_t component_size,void * elements,jint mode)3002   static void ReleasePrimitiveArray(ScopedObjectAccess& soa,
3003                                     ObjPtr<mirror::Array> array,
3004                                     size_t component_size,
3005                                     void* elements,
3006                                     jint mode)
3007       REQUIRES_SHARED(Locks::mutator_lock_) {
3008     void* array_data = array->GetRawData(component_size, 0);
3009     gc::Heap* heap = Runtime::Current()->GetHeap();
3010     bool is_copy = array_data != elements;
3011     size_t bytes = array->GetLength() * component_size;
3012     if (is_copy) {
3013       // Integrity check: If elements is not the same as the java array's data, it better not be a
3014       // heap address. TODO: This might be slow to check, may be worth keeping track of which
3015       // copies we make?
3016       if (heap->IsNonDiscontinuousSpaceHeapAddress(elements)) {
3017         soa.Vm()->JniAbortF("ReleaseArrayElements",
3018                             "invalid element pointer %p, array elements are %p",
3019                             reinterpret_cast<void*>(elements), array_data);
3020         return;
3021       }
3022       if (mode != JNI_ABORT) {
3023         memcpy(array_data, elements, bytes);
3024       } else if (kWarnJniAbort && memcmp(array_data, elements, bytes) != 0) {
3025         // Warn if we have JNI_ABORT and the arrays don't match since this is usually an error.
3026         LOG(WARNING) << "Possible incorrect JNI_ABORT in Release*ArrayElements";
3027         soa.Self()->DumpJavaStack(LOG_STREAM(WARNING));
3028       }
3029     }
3030     if (mode != JNI_COMMIT) {
3031       if (is_copy) {
3032         delete[] reinterpret_cast<uint64_t*>(elements);
3033       } else if (heap->IsMovableObject(array)) {
3034         // Non copy to a movable object must means that we had disabled the moving GC.
3035         if (!gUseReadBarrier && !gUseUserfaultfd) {
3036           heap->DecrementDisableMovingGC(soa.Self());
3037         } else {
3038           heap->DecrementDisableThreadFlip(soa.Self());
3039         }
3040       }
3041     }
3042   }
3043 
3044   template <typename JArrayT, typename ElementT, typename ArtArrayT>
GetPrimitiveArrayRegion(JNIEnv * env,JArrayT java_array,jsize start,jsize length,ElementT * buf)3045   static void GetPrimitiveArrayRegion(JNIEnv* env, JArrayT java_array,
3046                                       jsize start, jsize length, ElementT* buf) {
3047     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(java_array);
3048     ScopedObjectAccess soa(env);
3049     ObjPtr<ArtArrayT> array = DecodeAndCheckArrayType<JArrayT, ElementT, ArtArrayT>(
3050         soa, java_array, "GetPrimitiveArrayRegion", "get region of");
3051     if (array != nullptr) {
3052       if (start < 0 || length < 0 || length > array->GetLength() - start) {
3053         ThrowAIOOBE(soa, array, start, length, "src");
3054       } else {
3055         CHECK_NON_NULL_MEMCPY_ARGUMENT(length, buf);
3056         ElementT* data = array->GetData();
3057         memcpy(buf, data + start, length * sizeof(ElementT));
3058       }
3059     }
3060   }
3061 
3062   template <typename JArrayT, typename ElementT, typename ArtArrayT>
SetPrimitiveArrayRegion(JNIEnv * env,JArrayT java_array,jsize start,jsize length,const ElementT * buf)3063   static void SetPrimitiveArrayRegion(JNIEnv* env, JArrayT java_array,
3064                                       jsize start, jsize length, const ElementT* buf) {
3065     CHECK_NON_NULL_ARGUMENT_RETURN_VOID(java_array);
3066     ScopedObjectAccess soa(env);
3067     ObjPtr<ArtArrayT> array = DecodeAndCheckArrayType<JArrayT, ElementT, ArtArrayT>(
3068         soa, java_array, "SetPrimitiveArrayRegion", "set region of");
3069     if (array != nullptr) {
3070       if (start < 0 || length < 0 || length > array->GetLength() - start) {
3071         ThrowAIOOBE(soa, array, start, length, "dst");
3072       } else {
3073         CHECK_NON_NULL_MEMCPY_ARGUMENT(length, buf);
3074         ElementT* data = array->GetData();
3075         memcpy(data + start, buf, length * sizeof(ElementT));
3076       }
3077     }
3078   }
3079 };
3080 
3081 template<bool kEnableIndexIds>
3082 struct JniNativeInterfaceFunctions {
3083   using JNIImpl = JNI<kEnableIndexIds>;
3084   static constexpr JNINativeInterface gJniNativeInterface = {
3085     nullptr,  // reserved0.
3086     nullptr,  // reserved1.
3087     nullptr,  // reserved2.
3088     nullptr,  // reserved3.
3089     JNIImpl::GetVersion,
3090     JNIImpl::DefineClass,
3091     JNIImpl::FindClass,
3092     JNIImpl::FromReflectedMethod,
3093     JNIImpl::FromReflectedField,
3094     JNIImpl::ToReflectedMethod,
3095     JNIImpl::GetSuperclass,
3096     JNIImpl::IsAssignableFrom,
3097     JNIImpl::ToReflectedField,
3098     JNIImpl::Throw,
3099     JNIImpl::ThrowNew,
3100     JNIImpl::ExceptionOccurred,
3101     JNIImpl::ExceptionDescribe,
3102     JNIImpl::ExceptionClear,
3103     JNIImpl::FatalError,
3104     JNIImpl::PushLocalFrame,
3105     JNIImpl::PopLocalFrame,
3106     JNIImpl::NewGlobalRef,
3107     JNIImpl::DeleteGlobalRef,
3108     JNIImpl::DeleteLocalRef,
3109     JNIImpl::IsSameObject,
3110     JNIImpl::NewLocalRef,
3111     JNIImpl::EnsureLocalCapacity,
3112     JNIImpl::AllocObject,
3113     JNIImpl::NewObject,
3114     JNIImpl::NewObjectV,
3115     JNIImpl::NewObjectA,
3116     JNIImpl::GetObjectClass,
3117     JNIImpl::IsInstanceOf,
3118     JNIImpl::GetMethodID,
3119     JNIImpl::CallObjectMethod,
3120     JNIImpl::CallObjectMethodV,
3121     JNIImpl::CallObjectMethodA,
3122     JNIImpl::CallBooleanMethod,
3123     JNIImpl::CallBooleanMethodV,
3124     JNIImpl::CallBooleanMethodA,
3125     JNIImpl::CallByteMethod,
3126     JNIImpl::CallByteMethodV,
3127     JNIImpl::CallByteMethodA,
3128     JNIImpl::CallCharMethod,
3129     JNIImpl::CallCharMethodV,
3130     JNIImpl::CallCharMethodA,
3131     JNIImpl::CallShortMethod,
3132     JNIImpl::CallShortMethodV,
3133     JNIImpl::CallShortMethodA,
3134     JNIImpl::CallIntMethod,
3135     JNIImpl::CallIntMethodV,
3136     JNIImpl::CallIntMethodA,
3137     JNIImpl::CallLongMethod,
3138     JNIImpl::CallLongMethodV,
3139     JNIImpl::CallLongMethodA,
3140     JNIImpl::CallFloatMethod,
3141     JNIImpl::CallFloatMethodV,
3142     JNIImpl::CallFloatMethodA,
3143     JNIImpl::CallDoubleMethod,
3144     JNIImpl::CallDoubleMethodV,
3145     JNIImpl::CallDoubleMethodA,
3146     JNIImpl::CallVoidMethod,
3147     JNIImpl::CallVoidMethodV,
3148     JNIImpl::CallVoidMethodA,
3149     JNIImpl::CallNonvirtualObjectMethod,
3150     JNIImpl::CallNonvirtualObjectMethodV,
3151     JNIImpl::CallNonvirtualObjectMethodA,
3152     JNIImpl::CallNonvirtualBooleanMethod,
3153     JNIImpl::CallNonvirtualBooleanMethodV,
3154     JNIImpl::CallNonvirtualBooleanMethodA,
3155     JNIImpl::CallNonvirtualByteMethod,
3156     JNIImpl::CallNonvirtualByteMethodV,
3157     JNIImpl::CallNonvirtualByteMethodA,
3158     JNIImpl::CallNonvirtualCharMethod,
3159     JNIImpl::CallNonvirtualCharMethodV,
3160     JNIImpl::CallNonvirtualCharMethodA,
3161     JNIImpl::CallNonvirtualShortMethod,
3162     JNIImpl::CallNonvirtualShortMethodV,
3163     JNIImpl::CallNonvirtualShortMethodA,
3164     JNIImpl::CallNonvirtualIntMethod,
3165     JNIImpl::CallNonvirtualIntMethodV,
3166     JNIImpl::CallNonvirtualIntMethodA,
3167     JNIImpl::CallNonvirtualLongMethod,
3168     JNIImpl::CallNonvirtualLongMethodV,
3169     JNIImpl::CallNonvirtualLongMethodA,
3170     JNIImpl::CallNonvirtualFloatMethod,
3171     JNIImpl::CallNonvirtualFloatMethodV,
3172     JNIImpl::CallNonvirtualFloatMethodA,
3173     JNIImpl::CallNonvirtualDoubleMethod,
3174     JNIImpl::CallNonvirtualDoubleMethodV,
3175     JNIImpl::CallNonvirtualDoubleMethodA,
3176     JNIImpl::CallNonvirtualVoidMethod,
3177     JNIImpl::CallNonvirtualVoidMethodV,
3178     JNIImpl::CallNonvirtualVoidMethodA,
3179     JNIImpl::GetFieldID,
3180     JNIImpl::GetObjectField,
3181     JNIImpl::GetBooleanField,
3182     JNIImpl::GetByteField,
3183     JNIImpl::GetCharField,
3184     JNIImpl::GetShortField,
3185     JNIImpl::GetIntField,
3186     JNIImpl::GetLongField,
3187     JNIImpl::GetFloatField,
3188     JNIImpl::GetDoubleField,
3189     JNIImpl::SetObjectField,
3190     JNIImpl::SetBooleanField,
3191     JNIImpl::SetByteField,
3192     JNIImpl::SetCharField,
3193     JNIImpl::SetShortField,
3194     JNIImpl::SetIntField,
3195     JNIImpl::SetLongField,
3196     JNIImpl::SetFloatField,
3197     JNIImpl::SetDoubleField,
3198     JNIImpl::GetStaticMethodID,
3199     JNIImpl::CallStaticObjectMethod,
3200     JNIImpl::CallStaticObjectMethodV,
3201     JNIImpl::CallStaticObjectMethodA,
3202     JNIImpl::CallStaticBooleanMethod,
3203     JNIImpl::CallStaticBooleanMethodV,
3204     JNIImpl::CallStaticBooleanMethodA,
3205     JNIImpl::CallStaticByteMethod,
3206     JNIImpl::CallStaticByteMethodV,
3207     JNIImpl::CallStaticByteMethodA,
3208     JNIImpl::CallStaticCharMethod,
3209     JNIImpl::CallStaticCharMethodV,
3210     JNIImpl::CallStaticCharMethodA,
3211     JNIImpl::CallStaticShortMethod,
3212     JNIImpl::CallStaticShortMethodV,
3213     JNIImpl::CallStaticShortMethodA,
3214     JNIImpl::CallStaticIntMethod,
3215     JNIImpl::CallStaticIntMethodV,
3216     JNIImpl::CallStaticIntMethodA,
3217     JNIImpl::CallStaticLongMethod,
3218     JNIImpl::CallStaticLongMethodV,
3219     JNIImpl::CallStaticLongMethodA,
3220     JNIImpl::CallStaticFloatMethod,
3221     JNIImpl::CallStaticFloatMethodV,
3222     JNIImpl::CallStaticFloatMethodA,
3223     JNIImpl::CallStaticDoubleMethod,
3224     JNIImpl::CallStaticDoubleMethodV,
3225     JNIImpl::CallStaticDoubleMethodA,
3226     JNIImpl::CallStaticVoidMethod,
3227     JNIImpl::CallStaticVoidMethodV,
3228     JNIImpl::CallStaticVoidMethodA,
3229     JNIImpl::GetStaticFieldID,
3230     JNIImpl::GetStaticObjectField,
3231     JNIImpl::GetStaticBooleanField,
3232     JNIImpl::GetStaticByteField,
3233     JNIImpl::GetStaticCharField,
3234     JNIImpl::GetStaticShortField,
3235     JNIImpl::GetStaticIntField,
3236     JNIImpl::GetStaticLongField,
3237     JNIImpl::GetStaticFloatField,
3238     JNIImpl::GetStaticDoubleField,
3239     JNIImpl::SetStaticObjectField,
3240     JNIImpl::SetStaticBooleanField,
3241     JNIImpl::SetStaticByteField,
3242     JNIImpl::SetStaticCharField,
3243     JNIImpl::SetStaticShortField,
3244     JNIImpl::SetStaticIntField,
3245     JNIImpl::SetStaticLongField,
3246     JNIImpl::SetStaticFloatField,
3247     JNIImpl::SetStaticDoubleField,
3248     JNIImpl::NewString,
3249     JNIImpl::GetStringLength,
3250     JNIImpl::GetStringChars,
3251     JNIImpl::ReleaseStringChars,
3252     JNIImpl::NewStringUTF,
3253     JNIImpl::GetStringUTFLength,
3254     JNIImpl::GetStringUTFChars,
3255     JNIImpl::ReleaseStringUTFChars,
3256     JNIImpl::GetArrayLength,
3257     JNIImpl::NewObjectArray,
3258     JNIImpl::GetObjectArrayElement,
3259     JNIImpl::SetObjectArrayElement,
3260     JNIImpl::NewBooleanArray,
3261     JNIImpl::NewByteArray,
3262     JNIImpl::NewCharArray,
3263     JNIImpl::NewShortArray,
3264     JNIImpl::NewIntArray,
3265     JNIImpl::NewLongArray,
3266     JNIImpl::NewFloatArray,
3267     JNIImpl::NewDoubleArray,
3268     JNIImpl::GetBooleanArrayElements,
3269     JNIImpl::GetByteArrayElements,
3270     JNIImpl::GetCharArrayElements,
3271     JNIImpl::GetShortArrayElements,
3272     JNIImpl::GetIntArrayElements,
3273     JNIImpl::GetLongArrayElements,
3274     JNIImpl::GetFloatArrayElements,
3275     JNIImpl::GetDoubleArrayElements,
3276     JNIImpl::ReleaseBooleanArrayElements,
3277     JNIImpl::ReleaseByteArrayElements,
3278     JNIImpl::ReleaseCharArrayElements,
3279     JNIImpl::ReleaseShortArrayElements,
3280     JNIImpl::ReleaseIntArrayElements,
3281     JNIImpl::ReleaseLongArrayElements,
3282     JNIImpl::ReleaseFloatArrayElements,
3283     JNIImpl::ReleaseDoubleArrayElements,
3284     JNIImpl::GetBooleanArrayRegion,
3285     JNIImpl::GetByteArrayRegion,
3286     JNIImpl::GetCharArrayRegion,
3287     JNIImpl::GetShortArrayRegion,
3288     JNIImpl::GetIntArrayRegion,
3289     JNIImpl::GetLongArrayRegion,
3290     JNIImpl::GetFloatArrayRegion,
3291     JNIImpl::GetDoubleArrayRegion,
3292     JNIImpl::SetBooleanArrayRegion,
3293     JNIImpl::SetByteArrayRegion,
3294     JNIImpl::SetCharArrayRegion,
3295     JNIImpl::SetShortArrayRegion,
3296     JNIImpl::SetIntArrayRegion,
3297     JNIImpl::SetLongArrayRegion,
3298     JNIImpl::SetFloatArrayRegion,
3299     JNIImpl::SetDoubleArrayRegion,
3300     JNIImpl::RegisterNatives,
3301     JNIImpl::UnregisterNatives,
3302     JNIImpl::MonitorEnter,
3303     JNIImpl::MonitorExit,
3304     JNIImpl::GetJavaVM,
3305     JNIImpl::GetStringRegion,
3306     JNIImpl::GetStringUTFRegion,
3307     JNIImpl::GetPrimitiveArrayCritical,
3308     JNIImpl::ReleasePrimitiveArrayCritical,
3309     JNIImpl::GetStringCritical,
3310     JNIImpl::ReleaseStringCritical,
3311     JNIImpl::NewWeakGlobalRef,
3312     JNIImpl::DeleteWeakGlobalRef,
3313     JNIImpl::ExceptionCheck,
3314     JNIImpl::NewDirectByteBuffer,
3315     JNIImpl::GetDirectBufferAddress,
3316     JNIImpl::GetDirectBufferCapacity,
3317     JNIImpl::GetObjectRefType,
3318   };
3319 };
3320 
GetJniNativeInterface()3321 const JNINativeInterface* GetJniNativeInterface() {
3322   // The template argument is passed down through the Encode/DecodeArtMethod/Field calls so if
3323   // JniIdType is kPointer the calls will be a simple cast with no branches. This ensures that
3324   // the normal case is still fast.
3325   return Runtime::Current()->GetJniIdType() == JniIdType::kPointer
3326              ? &JniNativeInterfaceFunctions<false>::gJniNativeInterface
3327              : &JniNativeInterfaceFunctions<true>::gJniNativeInterface;
3328 }
3329 
3330 JNINativeInterface gJniSleepForeverStub = {
3331     nullptr,  // reserved0.
3332     nullptr,  // reserved1.
3333     nullptr,  // reserved2.
3334     nullptr,  // reserved3.
3335     reinterpret_cast<jint (*)(JNIEnv*)>(SleepForever),
3336     reinterpret_cast<jclass (*)(JNIEnv*, const char*, jobject, const jbyte*, jsize)>(SleepForever),
3337     reinterpret_cast<jclass (*)(JNIEnv*, const char*)>(SleepForever),
3338     reinterpret_cast<jmethodID (*)(JNIEnv*, jobject)>(SleepForever),
3339     reinterpret_cast<jfieldID (*)(JNIEnv*, jobject)>(SleepForever),
3340     reinterpret_cast<jobject (*)(JNIEnv*, jclass, jmethodID, jboolean)>(SleepForever),
3341     reinterpret_cast<jclass (*)(JNIEnv*, jclass)>(SleepForever),
3342     reinterpret_cast<jboolean (*)(JNIEnv*, jclass, jclass)>(SleepForever),
3343     reinterpret_cast<jobject (*)(JNIEnv*, jclass, jfieldID, jboolean)>(SleepForever),
3344     reinterpret_cast<jint (*)(JNIEnv*, jthrowable)>(SleepForever),
3345     reinterpret_cast<jint (*)(JNIEnv*, jclass, const char*)>(SleepForever),
3346     reinterpret_cast<jthrowable (*)(JNIEnv*)>(SleepForever),
3347     reinterpret_cast<void (*)(JNIEnv*)>(SleepForever),
3348     reinterpret_cast<void (*)(JNIEnv*)>(SleepForever),
3349     reinterpret_cast<void (*)(JNIEnv*, const char*)>(SleepForever),
3350     reinterpret_cast<jint (*)(JNIEnv*, jint)>(SleepForever),
3351     reinterpret_cast<jobject (*)(JNIEnv*, jobject)>(SleepForever),
3352     reinterpret_cast<jobject (*)(JNIEnv*, jobject)>(SleepForever),
3353     reinterpret_cast<void (*)(JNIEnv*, jobject)>(SleepForever),
3354     reinterpret_cast<void (*)(JNIEnv*, jobject)>(SleepForever),
3355     reinterpret_cast<jboolean (*)(JNIEnv*, jobject, jobject)>(SleepForever),
3356     reinterpret_cast<jobject (*)(JNIEnv*, jobject)>(SleepForever),
3357     reinterpret_cast<jint (*)(JNIEnv*, jint)>(SleepForever),
3358     reinterpret_cast<jobject (*)(JNIEnv*, jclass)>(SleepForever),
3359     reinterpret_cast<jobject (*)(JNIEnv*, jclass, jmethodID, ...)>(SleepForever),
3360     reinterpret_cast<jobject (*)(JNIEnv*, jclass, jmethodID, va_list)>(SleepForever),
3361     reinterpret_cast<jobject (*)(JNIEnv*, jclass, jmethodID, const jvalue*)>(SleepForever),
3362     reinterpret_cast<jclass (*)(JNIEnv*, jobject)>(SleepForever),
3363     reinterpret_cast<jboolean (*)(JNIEnv*, jobject, jclass)>(SleepForever),
3364     reinterpret_cast<jmethodID (*)(JNIEnv*, jclass, const char*, const char*)>(SleepForever),
3365     reinterpret_cast<jobject (*)(JNIEnv*, jobject, jmethodID, ...)>(SleepForever),
3366     reinterpret_cast<jobject (*)(JNIEnv*, jobject, jmethodID, va_list)>(SleepForever),
3367     reinterpret_cast<jobject (*)(JNIEnv*, jobject, jmethodID, const jvalue*)>(SleepForever),
3368     reinterpret_cast<jboolean (*)(JNIEnv*, jobject, jmethodID, ...)>(SleepForever),
3369     reinterpret_cast<jboolean (*)(JNIEnv*, jobject, jmethodID, va_list)>(SleepForever),
3370     reinterpret_cast<jboolean (*)(JNIEnv*, jobject, jmethodID, const jvalue*)>(SleepForever),
3371     reinterpret_cast<jbyte (*)(JNIEnv*, jobject, jmethodID, ...)>(SleepForever),
3372     reinterpret_cast<jbyte (*)(JNIEnv*, jobject, jmethodID, va_list)>(SleepForever),
3373     reinterpret_cast<jbyte (*)(JNIEnv*, jobject, jmethodID, const jvalue*)>(SleepForever),
3374     reinterpret_cast<jchar (*)(JNIEnv*, jobject, jmethodID, ...)>(SleepForever),
3375     reinterpret_cast<jchar (*)(JNIEnv*, jobject, jmethodID, va_list)>(SleepForever),
3376     reinterpret_cast<jchar (*)(JNIEnv*, jobject, jmethodID, const jvalue*)>(SleepForever),
3377     reinterpret_cast<jshort (*)(JNIEnv*, jobject, jmethodID, ...)>(SleepForever),
3378     reinterpret_cast<jshort (*)(JNIEnv*, jobject, jmethodID, va_list)>(SleepForever),
3379     reinterpret_cast<jshort (*)(JNIEnv*, jobject, jmethodID, const jvalue*)>(SleepForever),
3380     reinterpret_cast<jint (*)(JNIEnv*, jobject, jmethodID, ...)>(SleepForever),
3381     reinterpret_cast<jint (*)(JNIEnv*, jobject, jmethodID, va_list)>(SleepForever),
3382     reinterpret_cast<jint (*)(JNIEnv*, jobject, jmethodID, const jvalue*)>(SleepForever),
3383     reinterpret_cast<jlong (*)(JNIEnv*, jobject, jmethodID, ...)>(SleepForever),
3384     reinterpret_cast<jlong (*)(JNIEnv*, jobject, jmethodID, va_list)>(SleepForever),
3385     reinterpret_cast<jlong (*)(JNIEnv*, jobject, jmethodID, const jvalue*)>(SleepForever),
3386     reinterpret_cast<jfloat (*)(JNIEnv*, jobject, jmethodID, ...)>(SleepForever),
3387     reinterpret_cast<jfloat (*)(JNIEnv*, jobject, jmethodID, va_list)>(SleepForever),
3388     reinterpret_cast<jfloat (*)(JNIEnv*, jobject, jmethodID, const jvalue*)>(SleepForever),
3389     reinterpret_cast<jdouble (*)(JNIEnv*, jobject, jmethodID, ...)>(SleepForever),
3390     reinterpret_cast<jdouble (*)(JNIEnv*, jobject, jmethodID, va_list)>(SleepForever),
3391     reinterpret_cast<jdouble (*)(JNIEnv*, jobject, jmethodID, const jvalue*)>(SleepForever),
3392     reinterpret_cast<void (*)(JNIEnv*, jobject, jmethodID, ...)>(SleepForever),
3393     reinterpret_cast<void (*)(JNIEnv*, jobject, jmethodID, va_list)>(SleepForever),
3394     reinterpret_cast<void (*)(JNIEnv*, jobject, jmethodID, const jvalue*)>(SleepForever),
3395     reinterpret_cast<jobject (*)(JNIEnv*, jobject, jclass, jmethodID, ...)>(SleepForever),
3396     reinterpret_cast<jobject (*)(JNIEnv*, jobject, jclass, jmethodID, va_list)>(SleepForever),
3397     reinterpret_cast<jobject (*)(JNIEnv*, jobject, jclass, jmethodID, const jvalue*)>(SleepForever),
3398     reinterpret_cast<jboolean (*)(JNIEnv*, jobject, jclass, jmethodID, ...)>(SleepForever),
3399     reinterpret_cast<jboolean (*)(JNIEnv*, jobject, jclass, jmethodID, va_list)>(SleepForever),
3400     reinterpret_cast<jboolean (*)(JNIEnv*, jobject, jclass, jmethodID, const jvalue*)>(
3401         SleepForever),
3402     reinterpret_cast<jbyte (*)(JNIEnv*, jobject, jclass, jmethodID, ...)>(SleepForever),
3403     reinterpret_cast<jbyte (*)(JNIEnv*, jobject, jclass, jmethodID, va_list)>(SleepForever),
3404     reinterpret_cast<jbyte (*)(JNIEnv*, jobject, jclass, jmethodID, const jvalue*)>(SleepForever),
3405     reinterpret_cast<jchar (*)(JNIEnv*, jobject, jclass, jmethodID, ...)>(SleepForever),
3406     reinterpret_cast<jchar (*)(JNIEnv*, jobject, jclass, jmethodID, va_list)>(SleepForever),
3407     reinterpret_cast<jchar (*)(JNIEnv*, jobject, jclass, jmethodID, const jvalue*)>(SleepForever),
3408     reinterpret_cast<jshort (*)(JNIEnv*, jobject, jclass, jmethodID, ...)>(SleepForever),
3409     reinterpret_cast<jshort (*)(JNIEnv*, jobject, jclass, jmethodID, va_list)>(SleepForever),
3410     reinterpret_cast<jshort (*)(JNIEnv*, jobject, jclass, jmethodID, const jvalue*)>(SleepForever),
3411     reinterpret_cast<jint (*)(JNIEnv*, jobject, jclass, jmethodID, ...)>(SleepForever),
3412     reinterpret_cast<jint (*)(JNIEnv*, jobject, jclass, jmethodID, va_list)>(SleepForever),
3413     reinterpret_cast<jint (*)(JNIEnv*, jobject, jclass, jmethodID, const jvalue*)>(SleepForever),
3414     reinterpret_cast<jlong (*)(JNIEnv*, jobject, jclass, jmethodID, ...)>(SleepForever),
3415     reinterpret_cast<jlong (*)(JNIEnv*, jobject, jclass, jmethodID, va_list)>(SleepForever),
3416     reinterpret_cast<jlong (*)(JNIEnv*, jobject, jclass, jmethodID, const jvalue*)>(SleepForever),
3417     reinterpret_cast<jfloat (*)(JNIEnv*, jobject, jclass, jmethodID, ...)>(SleepForever),
3418     reinterpret_cast<jfloat (*)(JNIEnv*, jobject, jclass, jmethodID, va_list)>(SleepForever),
3419     reinterpret_cast<jfloat (*)(JNIEnv*, jobject, jclass, jmethodID, const jvalue*)>(SleepForever),
3420     reinterpret_cast<jdouble (*)(JNIEnv*, jobject, jclass, jmethodID, ...)>(SleepForever),
3421     reinterpret_cast<jdouble (*)(JNIEnv*, jobject, jclass, jmethodID, va_list)>(SleepForever),
3422     reinterpret_cast<jdouble (*)(JNIEnv*, jobject, jclass, jmethodID, const jvalue*)>(SleepForever),
3423     reinterpret_cast<void (*)(JNIEnv*, jobject, jclass, jmethodID, ...)>(SleepForever),
3424     reinterpret_cast<void (*)(JNIEnv*, jobject, jclass, jmethodID, va_list)>(SleepForever),
3425     reinterpret_cast<void (*)(JNIEnv*, jobject, jclass, jmethodID, const jvalue*)>(SleepForever),
3426     reinterpret_cast<jfieldID (*)(JNIEnv*, jclass, const char*, const char*)>(SleepForever),
3427     reinterpret_cast<jobject (*)(JNIEnv*, jobject, jfieldID)>(SleepForever),
3428     reinterpret_cast<jboolean (*)(JNIEnv*, jobject, jfieldID)>(SleepForever),
3429     reinterpret_cast<jbyte (*)(JNIEnv*, jobject, jfieldID)>(SleepForever),
3430     reinterpret_cast<jchar (*)(JNIEnv*, jobject, jfieldID)>(SleepForever),
3431     reinterpret_cast<jshort (*)(JNIEnv*, jobject, jfieldID)>(SleepForever),
3432     reinterpret_cast<jint (*)(JNIEnv*, jobject, jfieldID)>(SleepForever),
3433     reinterpret_cast<jlong (*)(JNIEnv*, jobject, jfieldID)>(SleepForever),
3434     reinterpret_cast<jfloat (*)(JNIEnv*, jobject, jfieldID)>(SleepForever),
3435     reinterpret_cast<jdouble (*)(JNIEnv*, jobject, jfieldID)>(SleepForever),
3436     reinterpret_cast<void (*)(JNIEnv*, jobject, jfieldID, jobject)>(SleepForever),
3437     reinterpret_cast<void (*)(JNIEnv*, jobject, jfieldID, jboolean)>(SleepForever),
3438     reinterpret_cast<void (*)(JNIEnv*, jobject, jfieldID, jbyte)>(SleepForever),
3439     reinterpret_cast<void (*)(JNIEnv*, jobject, jfieldID, jchar)>(SleepForever),
3440     reinterpret_cast<void (*)(JNIEnv*, jobject, jfieldID, jshort)>(SleepForever),
3441     reinterpret_cast<void (*)(JNIEnv*, jobject, jfieldID, jint)>(SleepForever),
3442     reinterpret_cast<void (*)(JNIEnv*, jobject, jfieldID, jlong)>(SleepForever),
3443     reinterpret_cast<void (*)(JNIEnv*, jobject, jfieldID, jfloat)>(SleepForever),
3444     reinterpret_cast<void (*)(JNIEnv*, jobject, jfieldID, jdouble)>(SleepForever),
3445     reinterpret_cast<jmethodID (*)(JNIEnv*, jclass, const char*, const char*)>(SleepForever),
3446     reinterpret_cast<jobject (*)(JNIEnv*, jclass, jmethodID, ...)>(SleepForever),
3447     reinterpret_cast<jobject (*)(JNIEnv*, jclass, jmethodID, va_list)>(SleepForever),
3448     reinterpret_cast<jobject (*)(JNIEnv*, jclass, jmethodID, const jvalue*)>(SleepForever),
3449     reinterpret_cast<jboolean (*)(JNIEnv*, jclass, jmethodID, ...)>(SleepForever),
3450     reinterpret_cast<jboolean (*)(JNIEnv*, jclass, jmethodID, va_list)>(SleepForever),
3451     reinterpret_cast<jboolean (*)(JNIEnv*, jclass, jmethodID, const jvalue*)>(SleepForever),
3452     reinterpret_cast<jbyte (*)(JNIEnv*, jclass, jmethodID, ...)>(SleepForever),
3453     reinterpret_cast<jbyte (*)(JNIEnv*, jclass, jmethodID, va_list)>(SleepForever),
3454     reinterpret_cast<jbyte (*)(JNIEnv*, jclass, jmethodID, const jvalue*)>(SleepForever),
3455     reinterpret_cast<jchar (*)(JNIEnv*, jclass, jmethodID, ...)>(SleepForever),
3456     reinterpret_cast<jchar (*)(JNIEnv*, jclass, jmethodID, va_list)>(SleepForever),
3457     reinterpret_cast<jchar (*)(JNIEnv*, jclass, jmethodID, const jvalue*)>(SleepForever),
3458     reinterpret_cast<jshort (*)(JNIEnv*, jclass, jmethodID, ...)>(SleepForever),
3459     reinterpret_cast<jshort (*)(JNIEnv*, jclass, jmethodID, va_list)>(SleepForever),
3460     reinterpret_cast<jshort (*)(JNIEnv*, jclass, jmethodID, const jvalue*)>(SleepForever),
3461     reinterpret_cast<jint (*)(JNIEnv*, jclass, jmethodID, ...)>(SleepForever),
3462     reinterpret_cast<jint (*)(JNIEnv*, jclass, jmethodID, va_list)>(SleepForever),
3463     reinterpret_cast<jint (*)(JNIEnv*, jclass, jmethodID, const jvalue*)>(SleepForever),
3464     reinterpret_cast<jlong (*)(JNIEnv*, jclass, jmethodID, ...)>(SleepForever),
3465     reinterpret_cast<jlong (*)(JNIEnv*, jclass, jmethodID, va_list)>(SleepForever),
3466     reinterpret_cast<jlong (*)(JNIEnv*, jclass, jmethodID, const jvalue*)>(SleepForever),
3467     reinterpret_cast<jfloat (*)(JNIEnv*, jclass, jmethodID, ...)>(SleepForever),
3468     reinterpret_cast<jfloat (*)(JNIEnv*, jclass, jmethodID, va_list)>(SleepForever),
3469     reinterpret_cast<jfloat (*)(JNIEnv*, jclass, jmethodID, const jvalue*)>(SleepForever),
3470     reinterpret_cast<jdouble (*)(JNIEnv*, jclass, jmethodID, ...)>(SleepForever),
3471     reinterpret_cast<jdouble (*)(JNIEnv*, jclass, jmethodID, va_list)>(SleepForever),
3472     reinterpret_cast<jdouble (*)(JNIEnv*, jclass, jmethodID, const jvalue*)>(SleepForever),
3473     reinterpret_cast<void (*)(JNIEnv*, jclass, jmethodID, ...)>(SleepForever),
3474     reinterpret_cast<void (*)(JNIEnv*, jclass, jmethodID, va_list)>(SleepForever),
3475     reinterpret_cast<void (*)(JNIEnv*, jclass, jmethodID, const jvalue*)>(SleepForever),
3476     reinterpret_cast<jfieldID (*)(JNIEnv*, jclass, const char*, const char*)>(SleepForever),
3477     reinterpret_cast<jobject (*)(JNIEnv*, jclass, jfieldID)>(SleepForever),
3478     reinterpret_cast<jboolean (*)(JNIEnv*, jclass, jfieldID)>(SleepForever),
3479     reinterpret_cast<jbyte (*)(JNIEnv*, jclass, jfieldID)>(SleepForever),
3480     reinterpret_cast<jchar (*)(JNIEnv*, jclass, jfieldID)>(SleepForever),
3481     reinterpret_cast<jshort (*)(JNIEnv*, jclass, jfieldID)>(SleepForever),
3482     reinterpret_cast<jint (*)(JNIEnv*, jclass, jfieldID)>(SleepForever),
3483     reinterpret_cast<jlong (*)(JNIEnv*, jclass, jfieldID)>(SleepForever),
3484     reinterpret_cast<jfloat (*)(JNIEnv*, jclass, jfieldID)>(SleepForever),
3485     reinterpret_cast<jdouble (*)(JNIEnv*, jclass, jfieldID)>(SleepForever),
3486     reinterpret_cast<void (*)(JNIEnv*, jclass, jfieldID, jobject)>(SleepForever),
3487     reinterpret_cast<void (*)(JNIEnv*, jclass, jfieldID, jboolean)>(SleepForever),
3488     reinterpret_cast<void (*)(JNIEnv*, jclass, jfieldID, jbyte)>(SleepForever),
3489     reinterpret_cast<void (*)(JNIEnv*, jclass, jfieldID, jchar)>(SleepForever),
3490     reinterpret_cast<void (*)(JNIEnv*, jclass, jfieldID, jshort)>(SleepForever),
3491     reinterpret_cast<void (*)(JNIEnv*, jclass, jfieldID, jint)>(SleepForever),
3492     reinterpret_cast<void (*)(JNIEnv*, jclass, jfieldID, jlong)>(SleepForever),
3493     reinterpret_cast<void (*)(JNIEnv*, jclass, jfieldID, jfloat)>(SleepForever),
3494     reinterpret_cast<void (*)(JNIEnv*, jclass, jfieldID, jdouble)>(SleepForever),
3495     reinterpret_cast<jstring (*)(JNIEnv*, const jchar*, jsize)>(SleepForever),
3496     reinterpret_cast<jsize (*)(JNIEnv*, jstring)>(SleepForever),
3497     reinterpret_cast<const jchar* (*)(JNIEnv*, jstring, jboolean*)>(SleepForever),
3498     reinterpret_cast<void (*)(JNIEnv*, jstring, const jchar*)>(SleepForever),
3499     reinterpret_cast<jstring (*)(JNIEnv*, const char*)>(SleepForever),
3500     reinterpret_cast<jsize (*)(JNIEnv*, jstring)>(SleepForever),
3501     reinterpret_cast<const char* (*)(JNIEnv*, jstring, jboolean*)>(SleepForever),
3502     reinterpret_cast<void (*)(JNIEnv*, jstring, const char*)>(SleepForever),
3503     reinterpret_cast<jsize (*)(JNIEnv*, jarray)>(SleepForever),
3504     reinterpret_cast<jobjectArray (*)(JNIEnv*, jsize, jclass, jobject)>(SleepForever),
3505     reinterpret_cast<jobject (*)(JNIEnv*, jobjectArray, jsize)>(SleepForever),
3506     reinterpret_cast<void (*)(JNIEnv*, jobjectArray, jsize, jobject)>(SleepForever),
3507     reinterpret_cast<jbooleanArray (*)(JNIEnv*, jsize)>(SleepForever),
3508     reinterpret_cast<jbyteArray (*)(JNIEnv*, jsize)>(SleepForever),
3509     reinterpret_cast<jcharArray (*)(JNIEnv*, jsize)>(SleepForever),
3510     reinterpret_cast<jshortArray (*)(JNIEnv*, jsize)>(SleepForever),
3511     reinterpret_cast<jintArray (*)(JNIEnv*, jsize)>(SleepForever),
3512     reinterpret_cast<jlongArray (*)(JNIEnv*, jsize)>(SleepForever),
3513     reinterpret_cast<jfloatArray (*)(JNIEnv*, jsize)>(SleepForever),
3514     reinterpret_cast<jdoubleArray (*)(JNIEnv*, jsize)>(SleepForever),
3515     reinterpret_cast<jboolean* (*)(JNIEnv*, jbooleanArray, jboolean*)>(SleepForever),
3516     reinterpret_cast<jbyte* (*)(JNIEnv*, jbyteArray, jboolean*)>(SleepForever),
3517     reinterpret_cast<jchar* (*)(JNIEnv*, jcharArray, jboolean*)>(SleepForever),
3518     reinterpret_cast<jshort* (*)(JNIEnv*, jshortArray, jboolean*)>(SleepForever),
3519     reinterpret_cast<jint* (*)(JNIEnv*, jintArray, jboolean*)>(SleepForever),
3520     reinterpret_cast<jlong* (*)(JNIEnv*, jlongArray, jboolean*)>(SleepForever),
3521     reinterpret_cast<jfloat* (*)(JNIEnv*, jfloatArray, jboolean*)>(SleepForever),
3522     reinterpret_cast<jdouble* (*)(JNIEnv*, jdoubleArray, jboolean*)>(SleepForever),
3523     reinterpret_cast<void (*)(JNIEnv*, jbooleanArray, jboolean*, jint)>(SleepForever),
3524     reinterpret_cast<void (*)(JNIEnv*, jbyteArray, jbyte*, jint)>(SleepForever),
3525     reinterpret_cast<void (*)(JNIEnv*, jcharArray, jchar*, jint)>(SleepForever),
3526     reinterpret_cast<void (*)(JNIEnv*, jshortArray, jshort*, jint)>(SleepForever),
3527     reinterpret_cast<void (*)(JNIEnv*, jintArray, jint*, jint)>(SleepForever),
3528     reinterpret_cast<void (*)(JNIEnv*, jlongArray, jlong*, jint)>(SleepForever),
3529     reinterpret_cast<void (*)(JNIEnv*, jfloatArray, jfloat*, jint)>(SleepForever),
3530     reinterpret_cast<void (*)(JNIEnv*, jdoubleArray, jdouble*, jint)>(SleepForever),
3531     reinterpret_cast<void (*)(JNIEnv*, jbooleanArray, jsize, jsize, jboolean*)>(SleepForever),
3532     reinterpret_cast<void (*)(JNIEnv*, jbyteArray, jsize, jsize, jbyte*)>(SleepForever),
3533     reinterpret_cast<void (*)(JNIEnv*, jcharArray, jsize, jsize, jchar*)>(SleepForever),
3534     reinterpret_cast<void (*)(JNIEnv*, jshortArray, jsize, jsize, jshort*)>(SleepForever),
3535     reinterpret_cast<void (*)(JNIEnv*, jintArray, jsize, jsize, jint*)>(SleepForever),
3536     reinterpret_cast<void (*)(JNIEnv*, jlongArray, jsize, jsize, jlong*)>(SleepForever),
3537     reinterpret_cast<void (*)(JNIEnv*, jfloatArray, jsize, jsize, jfloat*)>(SleepForever),
3538     reinterpret_cast<void (*)(JNIEnv*, jdoubleArray, jsize, jsize, jdouble*)>(SleepForever),
3539     reinterpret_cast<void (*)(JNIEnv*, jbooleanArray, jsize, jsize, const jboolean*)>(SleepForever),
3540     reinterpret_cast<void (*)(JNIEnv*, jbyteArray, jsize, jsize, const jbyte*)>(SleepForever),
3541     reinterpret_cast<void (*)(JNIEnv*, jcharArray, jsize, jsize, const jchar*)>(SleepForever),
3542     reinterpret_cast<void (*)(JNIEnv*, jshortArray, jsize, jsize, const jshort*)>(SleepForever),
3543     reinterpret_cast<void (*)(JNIEnv*, jintArray, jsize, jsize, const jint*)>(SleepForever),
3544     reinterpret_cast<void (*)(JNIEnv*, jlongArray, jsize, jsize, const jlong*)>(SleepForever),
3545     reinterpret_cast<void (*)(JNIEnv*, jfloatArray, jsize, jsize, const jfloat*)>(SleepForever),
3546     reinterpret_cast<void (*)(JNIEnv*, jdoubleArray, jsize, jsize, const jdouble*)>(SleepForever),
3547     reinterpret_cast<jint (*)(JNIEnv*, jclass, const JNINativeMethod*, jint)>(SleepForever),
3548     reinterpret_cast<jint (*)(JNIEnv*, jclass)>(SleepForever),
3549     reinterpret_cast<jint (*)(JNIEnv*, jobject)>(SleepForever),
3550     reinterpret_cast<jint (*)(JNIEnv*, jobject)>(SleepForever),
3551     reinterpret_cast<jint (*)(JNIEnv*, JavaVM**)>(SleepForever),
3552     reinterpret_cast<void (*)(JNIEnv*, jstring, jsize, jsize, jchar*)>(SleepForever),
3553     reinterpret_cast<void (*)(JNIEnv*, jstring, jsize, jsize, char*)>(SleepForever),
3554     reinterpret_cast<void* (*)(JNIEnv*, jarray, jboolean*)>(SleepForever),
3555     reinterpret_cast<void (*)(JNIEnv*, jarray, void*, jint)>(SleepForever),
3556     reinterpret_cast<const jchar* (*)(JNIEnv*, jstring, jboolean*)>(SleepForever),
3557     reinterpret_cast<void (*)(JNIEnv*, jstring, const jchar*)>(SleepForever),
3558     reinterpret_cast<jweak (*)(JNIEnv*, jobject)>(SleepForever),
3559     reinterpret_cast<void (*)(JNIEnv*, jweak)>(SleepForever),
3560     reinterpret_cast<jboolean (*)(JNIEnv*)>(SleepForever),
3561     reinterpret_cast<jobject (*)(JNIEnv*, void*, jlong)>(SleepForever),
3562     reinterpret_cast<void* (*)(JNIEnv*, jobject)>(SleepForever),
3563     reinterpret_cast<jlong (*)(JNIEnv*, jobject)>(SleepForever),
3564     reinterpret_cast<jobjectRefType (*)(JNIEnv*, jobject)>(SleepForever),
3565 };
3566 
GetRuntimeShutdownNativeInterface()3567 const JNINativeInterface* GetRuntimeShutdownNativeInterface() {
3568   return &gJniSleepForeverStub;
3569 }
3570 
3571 }  // namespace art
3572 
operator <<(std::ostream & os,const jobjectRefType & rhs)3573 std::ostream& operator<<(std::ostream& os, const jobjectRefType& rhs) {
3574   switch (rhs) {
3575   case JNIInvalidRefType:
3576     os << "JNIInvalidRefType";
3577     return os;
3578   case JNILocalRefType:
3579     os << "JNILocalRefType";
3580     return os;
3581   case JNIGlobalRefType:
3582     os << "JNIGlobalRefType";
3583     return os;
3584   case JNIWeakGlobalRefType:
3585     os << "JNIWeakGlobalRefType";
3586     return os;
3587   default:
3588     LOG(FATAL) << "jobjectRefType[" << static_cast<int>(rhs) << "]";
3589     UNREACHABLE();
3590   }
3591 }
3592