#include "arch/context.h"
#include "art_field-inl.h"
#include "art_method-inl.h"
+#include "base/out.h"
#include "base/stringpiece.h"
#include "dex_file-inl.h"
#include "dex_instruction.h"
const uint8_t* ArtMethod::GetQuickenedInfo() {
bool found = false;
OatFile::OatMethod oat_method =
- Runtime::Current()->GetClassLinker()->FindOatMethodFor(this, &found);
+ Runtime::Current()->GetClassLinker()->FindOatMethodFor(this, outof(found));
if (!found || (oat_method.GetQuickCode() != nullptr)) {
return nullptr;
}
return param_;
}
+ // Model dereferencing fields/methods on a pointer.
+ inline T* operator->() {
+ return std::addressof(param_);
+ }
+
//
// Comparison against this or other pointers.
//
// Forwards an out parameter from one function into another.
template <typename T>
inline out_convertible<T> outof_forward(out<T>& out_param) {
- T& param = std::addressof(*out_param);
+ T& param = *out_param;
return out_convertible<T>(param);
}
--- /dev/null
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_RUNTIME_BASE_OUT_FWD_H_
+#define ART_RUNTIME_BASE_OUT_FWD_H_
+
+// Forward declaration for "out<T>". See <out.h> for more information.
+// Other headers use only the forward declaration.
+
+// Callers of functions that take an out<T> parameter should #include <out.h> to get outof_.
+// which constructs out<T> through type inference.
+namespace art {
+template <typename T>
+struct out;
+} // namespace art
+
+#endif // ART_RUNTIME_BASE_OUT_FWD_H_
return resolved_method;
}
-inline ArtMethod* ClassLinker::ResolveMethod(Thread* self, uint32_t method_idx,
- ArtMethod* referrer, InvokeType type) {
+inline ArtMethod* ClassLinker::ResolveMethod(Thread* self,
+ uint32_t method_idx,
+ ArtMethod* referrer,
+ InvokeType type) {
ArtMethod* resolved_method = GetResolvedMethod(method_idx, referrer);
if (UNLIKELY(resolved_method == nullptr)) {
mirror::Class* declaring_class = referrer->GetDeclaringClass();
return GetResolvedField(field_idx, field_declaring_class->GetDexCache());
}
-inline ArtField* ClassLinker::ResolveField(uint32_t field_idx, ArtMethod* referrer,
+inline ArtField* ClassLinker::ResolveField(uint32_t field_idx,
+ ArtMethod* referrer,
bool is_static) {
mirror::Class* declaring_class = referrer->GetDeclaringClass();
ArtField* resolved_field = GetResolvedField(field_idx, declaring_class);
#include "base/arena_allocator.h"
#include "base/casts.h"
#include "base/logging.h"
+#include "base/out.h"
#include "base/scoped_arena_containers.h"
#include "base/scoped_flock.h"
#include "base/stl_util.h"
return lhs.size < rhs.size || (lhs.size == rhs.size && lhs.start_offset > rhs.start_offset);
}
};
-typedef std::priority_queue<FieldGap, std::vector<FieldGap>, FieldGapsComparator> FieldGaps;
+using FieldGaps = std::priority_queue<FieldGap, std::vector<FieldGap>, FieldGapsComparator>;
// Adds largest aligned gaps to queue of gaps.
static void AddFieldGap(uint32_t gap_start, uint32_t gap_end, FieldGaps* gaps) {
// be from multidex, which resolves correctly).
};
-static void AddDexFilesFromOat(const OatFile* oat_file, bool already_loaded,
+static void AddDexFilesFromOat(const OatFile* oat_file,
+ bool already_loaded,
std::priority_queue<DexFileAndClassPair>* heap) {
const std::vector<const OatDexFile*>& oat_dex_files = oat_file->GetOatDexFiles();
for (const OatDexFile* oat_dex_file : oat_dex_files) {
// against the following top element. If the descriptor is the same, it is now checked whether
// the two elements agree on whether their dex file was from an already-loaded oat-file or the
// new oat file. Any disagreement indicates a collision.
-bool ClassLinker::HasCollisions(const OatFile* oat_file, std::string* error_msg) {
+bool ClassLinker::HasCollisions(const OatFile* oat_file, out<std::string> error_msg) {
if (!kDuplicateClassesCheck) {
return false;
}
}
std::vector<std::unique_ptr<const DexFile>> ClassLinker::OpenDexFilesFromOat(
- const char* dex_location, const char* oat_location,
- std::vector<std::string>* error_msgs) {
- CHECK(error_msgs != nullptr);
-
+ const char* dex_location,
+ const char* oat_location,
+ out<std::vector<std::string>> error_msgs) {
// Verify we aren't holding the mutator lock, which could starve GC if we
// have to generate or relocate an oat file.
Locks::mutator_lock_->AssertNotHeld(Thread::Current());
std::unique_ptr<OatFile> oat_file = oat_file_assistant.GetBestOatFile();
if (oat_file.get() != nullptr) {
// Take the file only if it has no collisions, or we must take it because of preopting.
- bool accept_oat_file = !HasCollisions(oat_file.get(), &error_msg);
+ bool accept_oat_file = !HasCollisions(oat_file.get(), outof(error_msg));
if (!accept_oat_file) {
// Failed the collision check. Print warning.
if (Runtime::Current()->IsDexFileFallbackEnabled()) {
if (source_oat_file != nullptr) {
dex_files = oat_file_assistant.LoadDexFiles(*source_oat_file, dex_location);
if (dex_files.empty()) {
- error_msgs->push_back("Failed to open dex files from "
- + source_oat_file->GetLocation());
+ error_msgs->push_back("Failed to open dex files from " + source_oat_file->GetLocation());
}
}
return nullptr;
}
-static void SanityCheckArtMethod(ArtMethod* m, mirror::Class* expected_class,
+static void SanityCheckArtMethod(ArtMethod* m,
+ mirror::Class* expected_class,
gc::space::ImageSpace* space)
SHARED_REQUIRES(Locks::mutator_lock_) {
if (m->IsRuntimeMethod()) {
}
}
-static void SanityCheckArtMethodPointerArray(
- mirror::PointerArray* arr, mirror::Class* expected_class, size_t pointer_size,
- gc::space::ImageSpace* space) SHARED_REQUIRES(Locks::mutator_lock_) {
+static void SanityCheckArtMethodPointerArray(mirror::PointerArray* arr,
+ mirror::Class* expected_class,
+ size_t pointer_size,
+ gc::space::ImageSpace* space)
+ SHARED_REQUIRES(Locks::mutator_lock_) {
CHECK(arr != nullptr);
for (int32_t j = 0; j < arr->GetLength(); ++j) {
auto* method = arr->GetElementPtrSize<ArtMethod*>(j, pointer_size);
return dex_cache.Get();
}
-mirror::Class* ClassLinker::AllocClass(Thread* self, mirror::Class* java_lang_Class,
+mirror::Class* ClassLinker::AllocClass(Thread* self,
+ mirror::Class* java_lang_Class,
uint32_t class_size) {
DCHECK_GE(class_size, sizeof(mirror::Class));
gc::Heap* heap = Runtime::Current()->GetHeap();
return AllocClass(self, GetClassRoot(kJavaLangClass), class_size);
}
-mirror::ObjectArray<mirror::StackTraceElement>* ClassLinker::AllocStackTraceElementArray(
- Thread* self, size_t length) {
+mirror::ObjectArray<mirror::StackTraceElement>*
+ClassLinker::AllocStackTraceElementArray(Thread* self, size_t length) {
return mirror::ObjectArray<mirror::StackTraceElement>::Alloc(
self, GetClassRoot(kJavaLangStackTraceElementArrayClass), length);
}
-mirror::Class* ClassLinker::EnsureResolved(Thread* self, const char* descriptor,
+mirror::Class* ClassLinker::EnsureResolved(Thread* self,
+ const char* descriptor,
mirror::Class* klass) {
DCHECK(klass != nullptr);
// Search a collection of DexFiles for a descriptor
ClassPathEntry FindInClassPath(const char* descriptor,
- size_t hash, const std::vector<const DexFile*>& class_path) {
+ size_t hash,
+ const std::vector<const DexFile*>& class_path) {
for (const DexFile* dex_file : class_path) {
const DexFile::ClassDef* dex_class_def = dex_file->FindClassDef(descriptor, hash);
if (dex_class_def != nullptr) {
}
bool ClassLinker::FindClassInPathClassLoader(ScopedObjectAccessAlreadyRunnable& soa,
- Thread* self, const char* descriptor,
+ Thread* self,
+ const char* descriptor,
size_t hash,
Handle<mirror::ClassLoader> class_loader,
- mirror::Class** result) {
+ out<mirror::Class*> result) {
// Termination case: boot class-loader.
if (IsBootClassLoader(soa, class_loader.Get())) {
// The boot class loader, search the boot class path.
ClassPathEntry pair = FindInClassPath(descriptor, hash, boot_class_path_);
if (pair.second != nullptr) {
- mirror::Class* klass = LookupClass(self, descriptor, hash, nullptr);
+ mirror::Class* klass = LookupClass(self, descriptor, hash, nullptr /* no classloader */);
if (klass != nullptr) {
*result = EnsureResolved(self, descriptor, klass);
} else {
return true;
}
-mirror::Class* ClassLinker::FindClass(Thread* self, const char* descriptor,
+mirror::Class* ClassLinker::FindClass(Thread* self,
+ const char* descriptor,
Handle<mirror::ClassLoader> class_loader) {
DCHECK_NE(*descriptor, '\0') << "descriptor is empty string";
DCHECK(self != nullptr);
} else {
ScopedObjectAccessUnchecked soa(self);
mirror::Class* cp_klass;
- if (FindClassInPathClassLoader(soa, self, descriptor, hash, class_loader, &cp_klass)) {
+ if (FindClassInPathClassLoader(soa, self, descriptor, hash, class_loader, outof(cp_klass))) {
// The chain was understood. So the value in cp_klass is either the class we were looking
// for, or not found.
if (cp_klass != nullptr) {
UNREACHABLE();
}
-mirror::Class* ClassLinker::DefineClass(Thread* self, const char* descriptor, size_t hash,
+mirror::Class* ClassLinker::DefineClass(Thread* self,
+ const char* descriptor,
+ size_t hash,
Handle<mirror::ClassLoader> class_loader,
const DexFile& dex_file,
const DexFile::ClassDef& dex_class_def) {
auto interfaces = hs.NewHandle<mirror::ObjectArray<mirror::Class>>(nullptr);
MutableHandle<mirror::Class> h_new_class = hs.NewHandle<mirror::Class>(nullptr);
- if (!LinkClass(self, descriptor, klass, interfaces, &h_new_class)) {
+ if (!LinkClass(self, descriptor, klass, interfaces, outof(h_new_class))) {
// Linking failed.
if (!klass->IsErroneous()) {
mirror::Class::SetStatus(klass, mirror::Class::kStatusError, self);
image_pointer_size_);
}
-OatFile::OatClass ClassLinker::FindOatClass(const DexFile& dex_file, uint16_t class_def_idx,
- bool* found) {
+OatFile::OatClass ClassLinker::FindOatClass(const DexFile& dex_file,
+ uint16_t class_def_idx,
+ out<bool> found) {
DCHECK_NE(class_def_idx, DexFile::kDexNoIndex16);
const OatFile::OatDexFile* oat_dex_file = dex_file.GetOatDexFile();
if (oat_dex_file == nullptr) {
return oat_dex_file->GetOatClass(class_def_idx);
}
-static uint32_t GetOatMethodIndexFromMethodIndex(const DexFile& dex_file, uint16_t class_def_idx,
+static uint32_t GetOatMethodIndexFromMethodIndex(const DexFile& dex_file,
+ uint16_t class_def_idx,
uint32_t method_idx) {
const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_idx);
const uint8_t* class_data = dex_file.GetClassData(class_def);
UNREACHABLE();
}
-const OatFile::OatMethod ClassLinker::FindOatMethodFor(ArtMethod* method, bool* found) {
+const OatFile::OatMethod ClassLinker::FindOatMethodFor(ArtMethod* method, out<bool> found) {
// Although we overwrite the trampoline of non-static methods, we may get here via the resolution
// method for direct methods (or virtual methods made direct).
mirror::Class* declaring_class = method->GetDeclaringClass();
method->GetDexMethodIndex()));
OatFile::OatClass oat_class = FindOatClass(*declaring_class->GetDexCache()->GetDexFile(),
declaring_class->GetDexClassDefIndex(),
- found);
+ outof_forward(found));
if (!(*found)) {
return OatFile::OatMethod::Invalid();
}
return GetQuickProxyInvokeHandler();
}
bool found;
- OatFile::OatMethod oat_method = FindOatMethodFor(method, &found);
+ OatFile::OatMethod oat_method = FindOatMethodFor(method, outof(found));
if (found) {
auto* code = oat_method.GetQuickCode();
if (code != nullptr) {
return nullptr;
}
bool found;
- OatFile::OatMethod oat_method = FindOatMethodFor(method, &found);
+ OatFile::OatMethod oat_method = FindOatMethodFor(method, outof(found));
if (found) {
return oat_method.GetQuickCode();
}
return nullptr;
}
-const void* ClassLinker::GetQuickOatCodeFor(const DexFile& dex_file, uint16_t class_def_idx,
+const void* ClassLinker::GetQuickOatCodeFor(const DexFile& dex_file,
+ uint16_t class_def_idx,
uint32_t method_idx) {
bool found;
- OatFile::OatClass oat_class = FindOatClass(dex_file, class_def_idx, &found);
+ OatFile::OatClass oat_class = FindOatClass(dex_file, class_def_idx, outof(found));
if (!found) {
return nullptr;
}
}
bool has_oat_class;
OatFile::OatClass oat_class = FindOatClass(dex_file, klass->GetDexClassDefIndex(),
- &has_oat_class);
+ outof(has_oat_class));
// Link the code of methods skipped by LinkCode.
for (size_t method_index = 0; it.HasNextDirectMethod(); ++method_index, it.Next()) {
ArtMethod* method = klass->GetDirectMethod(method_index, image_pointer_size_);
// Ignore virtual methods on the iterator.
}
-void ClassLinker::LinkCode(ArtMethod* method, const OatFile::OatClass* oat_class,
+void ClassLinker::LinkCode(ArtMethod* method,
+ const OatFile::OatClass* oat_class,
uint32_t class_def_method_index) {
Runtime* const runtime = Runtime::Current();
if (runtime->IsAotCompiler()) {
}
}
-void ClassLinker::SetupClass(const DexFile& dex_file, const DexFile::ClassDef& dex_class_def,
- Handle<mirror::Class> klass, mirror::ClassLoader* class_loader) {
+void ClassLinker::SetupClass(const DexFile& dex_file,
+ const DexFile::ClassDef& dex_class_def,
+ Handle<mirror::Class> klass,
+ mirror::ClassLoader* class_loader) {
CHECK(klass.Get() != nullptr);
CHECK(klass->GetDexCache() != nullptr);
CHECK_EQ(mirror::Class::kStatusNotReady, klass->GetStatus());
CHECK(klass->GetDexCacheStrings() != nullptr);
}
-void ClassLinker::LoadClass(Thread* self, const DexFile& dex_file,
+void ClassLinker::LoadClass(Thread* self,
+ const DexFile& dex_file,
const DexFile::ClassDef& dex_class_def,
Handle<mirror::Class> klass) {
const uint8_t* class_data = dex_file.GetClassData(dex_class_def);
bool has_oat_class = false;
if (Runtime::Current()->IsStarted() && !Runtime::Current()->IsAotCompiler()) {
OatFile::OatClass oat_class = FindOatClass(dex_file, klass->GetDexClassDefIndex(),
- &has_oat_class);
+ outof(has_oat_class));
if (has_oat_class) {
LoadClassMembers(self, dex_file, class_data, klass, &oat_class);
}
return reinterpret_cast<ArtMethod*>(ptr);
}
-void ClassLinker::LoadClassMembers(Thread* self, const DexFile& dex_file,
+void ClassLinker::LoadClassMembers(Thread* self,
+ const DexFile& dex_file,
const uint8_t* class_data,
Handle<mirror::Class> klass,
const OatFile::OatClass* oat_class) {
self->AllowThreadSuspension();
}
-void ClassLinker::LoadField(const ClassDataItemIterator& it, Handle<mirror::Class> klass,
+void ClassLinker::LoadField(const ClassDataItemIterator& it,
+ Handle<mirror::Class> klass,
ArtField* dst) {
const uint32_t field_idx = it.GetMemberIndex();
dst->SetDexFieldIndex(field_idx);
dst->SetAccessFlags(it.GetFieldAccessFlags());
}
-void ClassLinker::LoadMethod(Thread* self, const DexFile& dex_file, const ClassDataItemIterator& it,
- Handle<mirror::Class> klass, ArtMethod* dst) {
+void ClassLinker::LoadMethod(Thread* self,
+ const DexFile& dex_file,
+ const ClassDataItemIterator& it,
+ Handle<mirror::Class> klass,
+ ArtMethod* dst) {
uint32_t dex_method_idx = it.GetMemberIndex();
const DexFile::MethodId& method_id = dex_file.GetMethodId(dex_method_idx);
const char* method_name = dex_file.StringDataByIdx(method_id.name_idx_);
// array class; that always comes from the base element class.
//
// Returns null with an exception raised on failure.
-mirror::Class* ClassLinker::CreateArrayClass(Thread* self, const char* descriptor, size_t hash,
+mirror::Class* ClassLinker::CreateArrayClass(Thread* self,
+ const char* descriptor,
+ size_t hash,
Handle<mirror::ClassLoader> class_loader) {
// Identify the underlying component type
CHECK_EQ('[', descriptor[0]);
return nullptr;
}
-void ClassLinker::UpdateClassVirtualMethods(mirror::Class* klass, ArtMethod* new_methods,
+void ClassLinker::UpdateClassVirtualMethods(mirror::Class* klass,
+ ArtMethod* new_methods,
size_t new_num_methods) {
// TODO: Fix the race condition here. b/22832610
klass->SetNumVirtualMethods(new_num_methods);
return class_table != nullptr && class_table->Remove(descriptor);
}
-mirror::Class* ClassLinker::LookupClass(Thread* self, const char* descriptor, size_t hash,
+mirror::Class* ClassLinker::LookupClass(Thread* self,
+ const char* descriptor,
+ size_t hash,
mirror::ClassLoader* class_loader) {
{
ReaderMutexLock mu(self, *Locks::classlinker_classes_lock_);
return nullptr;
}
-void ClassLinker::LookupClasses(const char* descriptor, std::vector<mirror::Class*>& result) {
+void ClassLinker::LookupClasses(const char* descriptor,
+ out<std::vector<mirror::Class*>> out_result) {
+ std::vector<mirror::Class*>& result = *out_result;
result.clear();
if (dex_cache_image_class_lookup_required_) {
MoveImageClassesToClassTable();
}
}
-bool ClassLinker::VerifyClassUsingOatFile(const DexFile& dex_file, mirror::Class* klass,
+bool ClassLinker::VerifyClassUsingOatFile(const DexFile& dex_file,
+ mirror::Class* klass,
mirror::Class::Status& oat_file_class_status) {
// If we're compiling, we can only verify the class using the oat file if
// we are not compiling the image or if the class we're verifying is not part of
}
}
-mirror::Class* ClassLinker::CreateProxyClass(ScopedObjectAccessAlreadyRunnable& soa, jstring name,
- jobjectArray interfaces, jobject loader,
- jobjectArray methods, jobjectArray throws) {
+mirror::Class* ClassLinker::CreateProxyClass(ScopedObjectAccessAlreadyRunnable& soa,
+ jstring name,
+ jobjectArray interfaces,
+ jobject loader,
+ jobjectArray methods,
+ jobjectArray throws) {
Thread* self = soa.Self();
StackHandleScope<10> hs(self);
MutableHandle<mirror::Class> klass(hs.NewHandle(
// The new class will replace the old one in the class table.
Handle<mirror::ObjectArray<mirror::Class>> h_interfaces(
hs.NewHandle(soa.Decode<mirror::ObjectArray<mirror::Class>*>(interfaces)));
- if (!LinkClass(self, descriptor.c_str(), klass, h_interfaces, &new_class)) {
+ if (!LinkClass(self, descriptor.c_str(), klass, h_interfaces, outof(new_class))) {
mirror::Class::SetStatus(klass, mirror::Class::kStatusError, self);
return nullptr;
}
DCHECK(constructor->IsPublic());
}
-void ClassLinker::CreateProxyMethod(Handle<mirror::Class> klass, ArtMethod* prototype,
+void ClassLinker::CreateProxyMethod(Handle<mirror::Class> klass,
+ ArtMethod* prototype,
ArtMethod* out) {
// Ensure prototype is in dex cache so that we can use the dex cache to look up the overridden
// prototype method
CHECK_EQ(np->GetReturnType(), prototype->GetReturnType());
}
-bool ClassLinker::CanWeInitializeClass(mirror::Class* klass, bool can_init_statics,
+bool ClassLinker::CanWeInitializeClass(mirror::Class* klass,
+ bool can_init_statics,
bool can_init_parents) {
if (can_init_statics && can_init_parents) {
return true;
return CanWeInitializeClass(super_class, can_init_statics, can_init_parents);
}
-bool ClassLinker::InitializeClass(Thread* self, Handle<mirror::Class> klass,
- bool can_init_statics, bool can_init_parents) {
+bool ClassLinker::InitializeClass(Thread* self,
+ Handle<mirror::Class> klass,
+ bool can_init_statics,
+ bool can_init_parents) {
// see JLS 3rd edition, 12.4.2 "Detailed Initialization Procedure" for the locking protocol
// Are we already initialized and therefore done?
return true;
}
// No. That's fine. Wait for another thread to finish initializing.
- return WaitForInitializeClass(klass, self, lock);
+ return WaitForInitializeClass(klass, self, &lock);
}
if (!ValidateSuperClassDescriptors(klass)) {
return success;
}
-bool ClassLinker::WaitForInitializeClass(Handle<mirror::Class> klass, Thread* self,
- ObjectLock<mirror::Class>& lock)
+bool ClassLinker::WaitForInitializeClass(Handle<mirror::Class> klass,
+ Thread* self,
+ ObjectLock<mirror::Class>* lock)
SHARED_REQUIRES(Locks::mutator_lock_) {
+ DCHECK(lock != nullptr);
+
while (true) {
self->AssertNoPendingException();
CHECK(!klass->IsInitialized());
- lock.WaitIgnoringInterrupts();
+ lock->WaitIgnoringInterrupts();
// When we wake up, repeat the test for init-in-progress. If
// there's an exception pending (only possible if
Handle<mirror::Class> super_klass,
ArtMethod* method,
ArtMethod* m,
- uint32_t index, uint32_t arg_type_idx)
+ uint32_t index,
+ uint32_t arg_type_idx)
SHARED_REQUIRES(Locks::mutator_lock_) {
DCHECK(Thread::Current()->IsExceptionPending());
DCHECK(!m->IsProxyMethod());
return true;
}
-bool ClassLinker::EnsureInitialized(Thread* self, Handle<mirror::Class> c, bool can_init_fields,
+bool ClassLinker::EnsureInitialized(Thread* self, Handle<mirror::Class> c,
+ bool can_init_fields,
bool can_init_parents) {
DCHECK(c.Get() != nullptr);
if (c->IsInitialized()) {
return nullptr;
}
-bool ClassLinker::LinkClass(Thread* self, const char* descriptor, Handle<mirror::Class> klass,
+bool ClassLinker::LinkClass(Thread* self,
+ const char* descriptor,
+ Handle<mirror::Class> klass,
Handle<mirror::ObjectArray<mirror::Class>> interfaces,
- MutableHandle<mirror::Class>* h_new_class_out) {
+ out<MutableHandle<mirror::Class>> h_new_class_out) {
CHECK_EQ(mirror::Class::kStatusLoaded, klass->GetStatus());
if (!LinkSuperClass(klass)) {
}
ArtMethod* imt[mirror::Class::kImtSize];
std::fill_n(imt, arraysize(imt), Runtime::Current()->GetImtUnimplementedMethod());
- if (!LinkMethods(self, klass, interfaces, imt)) {
+ if (!LinkMethods(self, klass, interfaces, outof(imt))) {
return false;
}
if (!LinkInstanceFields(self, klass)) {
return false;
}
size_t class_size;
- if (!LinkStaticFields(self, klass, &class_size)) {
+ if (!LinkStaticFields(self, klass, outof(class_size))) {
return false;
}
CreateReferenceInstanceOffsets(klass);
return true;
}
-static void CountMethodsAndFields(ClassDataItemIterator& dex_data,
- size_t* virtual_methods,
- size_t* direct_methods,
- size_t* static_fields,
- size_t* instance_fields) {
+static void CountMethodsAndFields(ClassDataItemIterator* dex_data,
+ out<size_t> virtual_methods,
+ out<size_t> direct_methods,
+ out<size_t> static_fields,
+ out<size_t> instance_fields) {
+ DCHECK(dex_data != nullptr);
*virtual_methods = *direct_methods = *static_fields = *instance_fields = 0;
- while (dex_data.HasNextStaticField()) {
- dex_data.Next();
+ while (dex_data->HasNextStaticField()) {
+ dex_data->Next();
(*static_fields)++;
}
- while (dex_data.HasNextInstanceField()) {
- dex_data.Next();
+ while (dex_data->HasNextInstanceField()) {
+ dex_data->Next();
(*instance_fields)++;
}
- while (dex_data.HasNextDirectMethod()) {
+ while (dex_data->HasNextDirectMethod()) {
(*direct_methods)++;
- dex_data.Next();
+ dex_data->Next();
}
- while (dex_data.HasNextVirtualMethod()) {
+ while (dex_data->HasNextVirtualMethod()) {
(*virtual_methods)++;
- dex_data.Next();
+ dex_data->Next();
}
- DCHECK(!dex_data.HasNext());
+ DCHECK(!dex_data->HasNext());
}
static void DumpClass(std::ostream& os,
}
}
-static std::string DumpClasses(const DexFile& dex_file1, const DexFile::ClassDef& dex_class_def1,
- const DexFile& dex_file2, const DexFile::ClassDef& dex_class_def2) {
+static std::string DumpClasses(const DexFile& dex_file1,
+ const DexFile::ClassDef& dex_class_def1,
+ const DexFile& dex_file2,
+ const DexFile::ClassDef& dex_class_def2) {
std::ostringstream os;
DumpClass(os, dex_file1, dex_class_def1, " (Compile time)");
DumpClass(os, dex_file2, dex_class_def2, " (Runtime)");
// Very simple structural check on whether the classes match. Only compares the number of
// methods and fields.
-static bool SimpleStructuralCheck(const DexFile& dex_file1, const DexFile::ClassDef& dex_class_def1,
- const DexFile& dex_file2, const DexFile::ClassDef& dex_class_def2,
+static bool SimpleStructuralCheck(const DexFile& dex_file1,
+ const DexFile::ClassDef& dex_class_def1,
+ const DexFile& dex_file2,
+ const DexFile::ClassDef& dex_class_def2,
std::string* error_msg) {
ClassDataItemIterator dex_data1(dex_file1, dex_file1.GetClassData(dex_class_def1));
ClassDataItemIterator dex_data2(dex_file2, dex_file2.GetClassData(dex_class_def2));
// Counters for current dex file.
size_t dex_virtual_methods1, dex_direct_methods1, dex_static_fields1, dex_instance_fields1;
- CountMethodsAndFields(dex_data1, &dex_virtual_methods1, &dex_direct_methods1, &dex_static_fields1,
- &dex_instance_fields1);
+ CountMethodsAndFields(&dex_data1,
+ outof(dex_virtual_methods1),
+ outof(dex_direct_methods1),
+ outof(dex_static_fields1),
+ outof(dex_instance_fields1));
// Counters for compile-time dex file.
size_t dex_virtual_methods2, dex_direct_methods2, dex_static_fields2, dex_instance_fields2;
- CountMethodsAndFields(dex_data2, &dex_virtual_methods2, &dex_direct_methods2, &dex_static_fields2,
- &dex_instance_fields2);
+ CountMethodsAndFields(&dex_data2,
+ outof(dex_virtual_methods2),
+ outof(dex_direct_methods2),
+ outof(dex_static_fields2),
+ outof(dex_instance_fields2));
if (dex_virtual_methods1 != dex_virtual_methods2) {
std::string class_dump = DumpClasses(dex_file1, dex_class_def1, dex_file2, dex_class_def2);
}
// Populate the class vtable and itable. Compute return type indices.
-bool ClassLinker::LinkMethods(Thread* self, Handle<mirror::Class> klass,
+bool ClassLinker::LinkMethods(Thread* self,
+ Handle<mirror::Class> klass,
Handle<mirror::ObjectArray<mirror::Class>> interfaces,
- ArtMethod** out_imt) {
+ out<ArtMethod* [mirror::Class::kImtSize]> out_imt) {
self->AllowThreadSuspension();
if (klass->IsInterface()) {
// No vtable.
} else if (!LinkVirtualMethods(self, klass)) { // Link virtual methods first.
return false;
}
- return LinkInterfaceMethods(self, klass, interfaces, out_imt); // Link interface method last.
+ return LinkInterfaceMethods(self,
+ klass,
+ interfaces,
+ outof_forward(out_imt)); // Link interface method last.
}
// Comparator for name and signature of a method, used in finding overriding methods. Implementation
class LinkVirtualHashTable {
public:
- LinkVirtualHashTable(Handle<mirror::Class> klass, size_t hash_size, uint32_t* hash_table,
+ LinkVirtualHashTable(Handle<mirror::Class> klass,
+ size_t hash_size,
+ uint32_t* hash_table,
size_t image_pointer_size)
: klass_(klass), hash_size_(hash_size), hash_table_(hash_table),
image_pointer_size_(image_pointer_size) {
return true;
}
-bool ClassLinker::LinkInterfaceMethods(Thread* self, Handle<mirror::Class> klass,
+bool ClassLinker::LinkInterfaceMethods(Thread* self,
+ Handle<mirror::Class> klass,
Handle<mirror::ObjectArray<mirror::Class>> interfaces,
- ArtMethod** out_imt) {
+ out<ArtMethod* [mirror::Class::kImtSize]> out_imt_array) {
+ auto& out_imt = *out_imt_array;
+
StackHandleScope<3> hs(self);
Runtime* const runtime = Runtime::Current();
const bool has_superclass = klass->HasSuperClass();
}
}
- auto* old_cause = self->StartAssertNoThreadSuspension(
+ const char* old_cause = self->StartAssertNoThreadSuspension(
"Copying ArtMethods for LinkInterfaceMethods");
for (size_t i = 0; i < ifcount; ++i) {
size_t num_methods = iftable->GetInterface(i)->NumVirtualMethods();
bool ClassLinker::LinkInstanceFields(Thread* self, Handle<mirror::Class> klass) {
CHECK(klass.Get() != nullptr);
- return LinkFields(self, klass, false, nullptr);
+ size_t class_size_dont_care;
+ UNUSED(class_size_dont_care); // This doesn't get set for instance fields.
+ return LinkFields(self, klass, false, outof(class_size_dont_care));
}
-bool ClassLinker::LinkStaticFields(Thread* self, Handle<mirror::Class> klass, size_t* class_size) {
+bool ClassLinker::LinkStaticFields(Thread* self,
+ Handle<mirror::Class> klass,
+ out<size_t> class_size) {
CHECK(klass.Get() != nullptr);
- return LinkFields(self, klass, true, class_size);
+ return LinkFields(self, klass, true, outof_forward(class_size));
}
struct LinkFieldsComparator {
}
};
-bool ClassLinker::LinkFields(Thread* self, Handle<mirror::Class> klass, bool is_static,
- size_t* class_size) {
+bool ClassLinker::LinkFields(Thread* self,
+ Handle<mirror::Class> klass,
+ bool is_static,
+ out<size_t> class_size) {
self->AllowThreadSuspension();
const size_t num_fields = is_static ? klass->NumStaticFields() : klass->NumInstanceFields();
ArtField* const fields = is_static ? klass->GetSFields() : klass->GetIFields();
klass->SetReferenceInstanceOffsets(reference_offsets);
}
-mirror::String* ClassLinker::ResolveString(const DexFile& dex_file, uint32_t string_idx,
+mirror::String* ClassLinker::ResolveString(const DexFile& dex_file,
+ uint32_t string_idx,
Handle<mirror::DexCache> dex_cache) {
DCHECK(dex_cache.Get() != nullptr);
mirror::String* resolved = dex_cache->GetResolvedString(string_idx);
return string;
}
-mirror::Class* ClassLinker::ResolveType(const DexFile& dex_file, uint16_t type_idx,
+mirror::Class* ClassLinker::ResolveType(const DexFile& dex_file,
+ uint16_t type_idx,
mirror::Class* referrer) {
StackHandleScope<2> hs(Thread::Current());
Handle<mirror::DexCache> dex_cache(hs.NewHandle(referrer->GetDexCache()));
return ResolveType(dex_file, type_idx, dex_cache, class_loader);
}
-mirror::Class* ClassLinker::ResolveType(const DexFile& dex_file, uint16_t type_idx,
+mirror::Class* ClassLinker::ResolveType(const DexFile& dex_file,
+ uint16_t type_idx,
Handle<mirror::DexCache> dex_cache,
Handle<mirror::ClassLoader> class_loader) {
DCHECK(dex_cache.Get() != nullptr);
return resolved;
}
-ArtMethod* ClassLinker::ResolveMethod(const DexFile& dex_file, uint32_t method_idx,
+ArtMethod* ClassLinker::ResolveMethod(const DexFile& dex_file,
+ uint32_t method_idx,
Handle<mirror::DexCache> dex_cache,
Handle<mirror::ClassLoader> class_loader,
ArtMethod* referrer, InvokeType type) {
}
}
-ArtField* ClassLinker::ResolveField(const DexFile& dex_file, uint32_t field_idx,
+ArtField* ClassLinker::ResolveField(const DexFile& dex_file,
+ uint32_t field_idx,
Handle<mirror::DexCache> dex_cache,
- Handle<mirror::ClassLoader> class_loader, bool is_static) {
+ Handle<mirror::ClassLoader> class_loader,
+ bool is_static) {
DCHECK(dex_cache.Get() != nullptr);
ArtField* resolved = dex_cache->GetResolvedField(field_idx, image_pointer_size_);
if (resolved != nullptr) {
return resolved;
}
-ArtField* ClassLinker::ResolveFieldJLS(const DexFile& dex_file, uint32_t field_idx,
+ArtField* ClassLinker::ResolveFieldJLS(const DexFile& dex_file,
+ uint32_t field_idx,
Handle<mirror::DexCache> dex_cache,
Handle<mirror::ClassLoader> class_loader) {
DCHECK(dex_cache.Get() != nullptr);
return resolved;
}
-const char* ClassLinker::MethodShorty(uint32_t method_idx, ArtMethod* referrer,
+const char* ClassLinker::MethodShorty(uint32_t method_idx,
+ ArtMethod* referrer,
uint32_t* length) {
mirror::Class* declaring_class = referrer->GetDeclaringClass();
mirror::DexCache* dex_cache = declaring_class->GetDexCache();
}
}
-jobject ClassLinker::CreatePathClassLoader(Thread* self, std::vector<const DexFile*>& dex_files) {
+jobject ClassLinker::CreatePathClassLoader(Thread* self,
+ const std::vector<const DexFile*>& dex_files) {
// SOAAlreadyRunnable is protected, and we need something to add a global reference.
// We could move the jobject to the callers, but all call-sites do this...
ScopedObjectAccessUnchecked soa(self);
#include "base/hash_set.h"
#include "base/macros.h"
#include "base/mutex.h"
+#include "base/out_fwd.h"
#include "class_table.h"
#include "dex_file.h"
#include "gc_root.h"
// Initialize class linker by bootstraping from dex files.
void InitWithoutImage(std::vector<std::unique_ptr<const DexFile>> boot_class_path)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
// Initialize class linker from one or more images.
void InitFromImage() SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
// Finds a class by its descriptor, loading it if necessary.
// If class_loader is null, searches boot_class_path_.
- mirror::Class* FindClass(Thread* self, const char* descriptor,
+ mirror::Class* FindClass(Thread* self,
+ const char* descriptor,
Handle<mirror::ClassLoader> class_loader)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
// Finds a class in the path class loader, loading it if necessary without using JNI. Hash
// function is supposed to be ComputeModifiedUtf8Hash(descriptor). Returns true if the
// was encountered while walking the parent chain (currently only BootClassLoader and
// PathClassLoader are supported).
bool FindClassInPathClassLoader(ScopedObjectAccessAlreadyRunnable& soa,
- Thread* self, const char* descriptor, size_t hash,
+ Thread* self,
+ const char* descriptor,
+ size_t hash,
Handle<mirror::ClassLoader> class_loader,
- mirror::Class** result)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ out<mirror::Class*> result)
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
// Finds a class by its descriptor using the "system" class loader, ie by searching the
// boot_class_path_.
mirror::Class* FindSystemClass(Thread* self, const char* descriptor)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
// Finds the array class given for the element class.
- mirror::Class* FindArrayClass(Thread* self, mirror::Class** element_class)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ mirror::Class* FindArrayClass(Thread* self, /* in parameter */ mirror::Class** element_class)
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
// Returns true if the class linker is initialized.
bool IsInitialized() const {
}
// Define a new a class based on a ClassDef from a DexFile
- mirror::Class* DefineClass(Thread* self, const char* descriptor, size_t hash,
+ mirror::Class* DefineClass(Thread* self,
+ const char* descriptor,
+ size_t hash,
Handle<mirror::ClassLoader> class_loader,
- const DexFile& dex_file, const DexFile::ClassDef& dex_class_def)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ const DexFile& dex_file,
+ const DexFile::ClassDef& dex_class_def)
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
// Finds a class by its descriptor, returning null if it isn't wasn't loaded
// by the given 'class_loader'.
- mirror::Class* LookupClass(Thread* self, const char* descriptor, size_t hash,
- mirror::ClassLoader* class_loader)
+ mirror::Class* LookupClass(Thread* self,
+ const char* descriptor,
+ size_t hash,
+ mirror::ClassLoader*
+ class_loader)
REQUIRES(!Locks::classlinker_classes_lock_)
SHARED_REQUIRES(Locks::mutator_lock_);
// Finds all the classes with the given descriptor, regardless of ClassLoader.
- void LookupClasses(const char* descriptor, std::vector<mirror::Class*>& classes)
+ void LookupClasses(const char* descriptor, out<std::vector<mirror::Class*>> classes)
REQUIRES(!Locks::classlinker_classes_lock_)
SHARED_REQUIRES(Locks::mutator_lock_);
// General class unloading is not supported, this is used to prune
// unwanted classes during image writing.
- bool RemoveClass(const char* descriptor, mirror::ClassLoader* class_loader)
- REQUIRES(!Locks::classlinker_classes_lock_) SHARED_REQUIRES(Locks::mutator_lock_);
+ bool RemoveClass(const char* descriptor,
+ mirror::ClassLoader* class_loader)
+ REQUIRES(!Locks::classlinker_classes_lock_)
+ SHARED_REQUIRES(Locks::mutator_lock_);
void DumpAllClasses(int flags)
- REQUIRES(!Locks::classlinker_classes_lock_) SHARED_REQUIRES(Locks::mutator_lock_);
+ REQUIRES(!Locks::classlinker_classes_lock_)
+ SHARED_REQUIRES(Locks::mutator_lock_);
void DumpForSigQuit(std::ostream& os)
REQUIRES(!Locks::classlinker_classes_lock_);
size_t NumLoadedClasses()
- REQUIRES(!Locks::classlinker_classes_lock_) SHARED_REQUIRES(Locks::mutator_lock_);
+ REQUIRES(!Locks::classlinker_classes_lock_)
+ SHARED_REQUIRES(Locks::mutator_lock_);
// Resolve a String with the given index from the DexFile, storing the
// result in the DexCache. The referrer is used to identify the
// Resolve a String with the given index from the DexFile, storing the
// result in the DexCache.
- mirror::String* ResolveString(const DexFile& dex_file, uint32_t string_idx,
+ mirror::String* ResolveString(const DexFile& dex_file,
+ uint32_t string_idx,
Handle<mirror::DexCache> dex_cache)
SHARED_REQUIRES(Locks::mutator_lock_);
// Resolve a Type with the given index from the DexFile, storing the
// result in the DexCache. The referrer is used to identity the
// target DexCache and ClassLoader to use for resolution.
- mirror::Class* ResolveType(const DexFile& dex_file, uint16_t type_idx, mirror::Class* referrer)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_, !Roles::uninterruptible_);
+ mirror::Class* ResolveType(const DexFile& dex_file,
+ uint16_t type_idx,
+ mirror::Class* referrer)
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_, !Roles::uninterruptible_);
// Resolve a Type with the given index from the DexFile, storing the
// result in the DexCache. The referrer is used to identify the
// target DexCache and ClassLoader to use for resolution.
- mirror::Class* ResolveType(uint16_t type_idx, ArtMethod* referrer)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_, !Roles::uninterruptible_);
+ mirror::Class* ResolveType(uint16_t type_idx,
+ ArtMethod* referrer)
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_, !Roles::uninterruptible_);
- mirror::Class* ResolveType(uint16_t type_idx, ArtField* referrer)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_, !Roles::uninterruptible_);
+ mirror::Class* ResolveType(uint16_t type_idx,
+ ArtField* referrer)
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_, !Roles::uninterruptible_);
// Resolve a type with the given ID from the DexFile, storing the
// result in DexCache. The ClassLoader is used to search for the
// type, since it may be referenced from but not contained within
// the given DexFile.
- mirror::Class* ResolveType(const DexFile& dex_file, uint16_t type_idx,
+ mirror::Class* ResolveType(const DexFile& dex_file,
+ uint16_t type_idx,
Handle<mirror::DexCache> dex_cache,
Handle<mirror::ClassLoader> class_loader)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_, !Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_, !Roles::uninterruptible_);
// Resolve a method with a given ID from the DexFile, storing the
// result in DexCache. The ClassLinker and ClassLoader are used as
// in ResolveType. What is unique is the method type argument which
// is used to determine if this method is a direct, static, or
// virtual method.
- ArtMethod* ResolveMethod(const DexFile& dex_file, uint32_t method_idx,
+ ArtMethod* ResolveMethod(const DexFile& dex_file,
+ uint32_t method_idx,
Handle<mirror::DexCache> dex_cache,
- Handle<mirror::ClassLoader> class_loader, ArtMethod* referrer,
+ Handle<mirror::ClassLoader> class_loader,
+ ArtMethod* referrer,
InvokeType type)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_, !Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_, !Roles::uninterruptible_);
ArtMethod* GetResolvedMethod(uint32_t method_idx, ArtMethod* referrer)
SHARED_REQUIRES(Locks::mutator_lock_);
ArtMethod* ResolveMethod(Thread* self, uint32_t method_idx, ArtMethod* referrer, InvokeType type)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_, !Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_, !Roles::uninterruptible_);
ArtField* GetResolvedField(uint32_t field_idx, mirror::Class* field_declaring_class)
SHARED_REQUIRES(Locks::mutator_lock_);
ArtField* GetResolvedField(uint32_t field_idx, mirror::DexCache* dex_cache)
SHARED_REQUIRES(Locks::mutator_lock_);
ArtField* ResolveField(uint32_t field_idx, ArtMethod* referrer, bool is_static)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_, !Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_, !Roles::uninterruptible_);
// Resolve a field with a given ID from the DexFile, storing the
// result in DexCache. The ClassLinker and ClassLoader are used as
// in ResolveType. What is unique is the is_static argument which is
// used to determine if we are resolving a static or non-static
// field.
- ArtField* ResolveField(const DexFile& dex_file, uint32_t field_idx,
+ ArtField* ResolveField(const DexFile& dex_file,
+ uint32_t field_idx,
Handle<mirror::DexCache> dex_cache,
- Handle<mirror::ClassLoader> class_loader, bool is_static)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_, !Roles::uninterruptible_);
+ Handle<mirror::ClassLoader> class_loader,
+ bool is_static)
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_, !Roles::uninterruptible_);
// Resolve a field with a given ID from the DexFile, storing the
// result in DexCache. The ClassLinker and ClassLoader are used as
// in ResolveType. No is_static argument is provided so that Java
// field resolution semantics are followed.
- ArtField* ResolveFieldJLS(const DexFile& dex_file, uint32_t field_idx,
+ ArtField* ResolveFieldJLS(const DexFile& dex_file,
+ uint32_t field_idx,
Handle<mirror::DexCache> dex_cache,
Handle<mirror::ClassLoader> class_loader)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_, !Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_, !Roles::uninterruptible_);
// Get shorty from method index without resolution. Used to do handlerization.
const char* MethodShorty(uint32_t method_idx, ArtMethod* referrer, uint32_t* length)
// Returns true on success, false if there's an exception pending.
// can_run_clinit=false allows the compiler to attempt to init a class,
// given the restriction that no <clinit> execution is possible.
- bool EnsureInitialized(Thread* self, Handle<mirror::Class> c, bool can_init_fields,
+ bool EnsureInitialized(Thread* self,
+ Handle<mirror::Class> c,
+ bool can_init_fields,
bool can_init_parents)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_, !Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_, !Roles::uninterruptible_);
// Initializes classes that have instances in the image but that have
// <clinit> methods so they could not be initialized by the compiler.
REQUIRES(!dex_lock_);
void VisitClasses(ClassVisitor* visitor)
- REQUIRES(!Locks::classlinker_classes_lock_) SHARED_REQUIRES(Locks::mutator_lock_);
+ REQUIRES(!Locks::classlinker_classes_lock_)
+ SHARED_REQUIRES(Locks::mutator_lock_);
// Less efficient variant of VisitClasses that copies the class_table_ into secondary storage
// so that it can visit individual classes without holding the doesn't hold the
// Locks::classlinker_classes_lock_. As the Locks::classlinker_classes_lock_ isn't held this code
// can race with insertion and deletion of classes while the visitor is being called.
void VisitClassesWithoutClassesLock(ClassVisitor* visitor)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
void VisitClassRoots(RootVisitor* visitor, VisitRootFlags flags)
- REQUIRES(!Locks::classlinker_classes_lock_) SHARED_REQUIRES(Locks::mutator_lock_);
+ REQUIRES(!Locks::classlinker_classes_lock_)
+ SHARED_REQUIRES(Locks::mutator_lock_);
void VisitRoots(RootVisitor* visitor, VisitRootFlags flags)
- REQUIRES(!dex_lock_) SHARED_REQUIRES(Locks::mutator_lock_);
+ REQUIRES(!dex_lock_)
+ SHARED_REQUIRES(Locks::mutator_lock_);
mirror::DexCache* FindDexCache(const DexFile& dex_file)
- REQUIRES(!dex_lock_) SHARED_REQUIRES(Locks::mutator_lock_);
+ REQUIRES(!dex_lock_)
+ SHARED_REQUIRES(Locks::mutator_lock_);
bool IsDexFileRegistered(const DexFile& dex_file)
- REQUIRES(!dex_lock_) SHARED_REQUIRES(Locks::mutator_lock_);
+ REQUIRES(!dex_lock_)
+ SHARED_REQUIRES(Locks::mutator_lock_);
void FixupDexCaches(ArtMethod* resolution_method)
- REQUIRES(!dex_lock_) SHARED_REQUIRES(Locks::mutator_lock_);
+ REQUIRES(!dex_lock_)
+ SHARED_REQUIRES(Locks::mutator_lock_);
// Finds or creates the oat file holding dex_location. Then loads and returns
// all corresponding dex files (there may be more than one dex file loaded
// This method should not be called with the mutator_lock_ held, because it
// could end up starving GC if we need to generate or relocate any oat
// files.
- std::vector<std::unique_ptr<const DexFile>> OpenDexFilesFromOat(
- const char* dex_location, const char* oat_location,
- std::vector<std::string>* error_msgs)
+ std::vector<std::unique_ptr<const DexFile>> OpenDexFilesFromOat(const char* dex_location,
+ const char* oat_location,
+ out<std::vector<std::string>>
+ error_msgs)
REQUIRES(!dex_lock_, !Locks::mutator_lock_);
// Allocate an instance of a java.lang.Object.
- mirror::Object* AllocObject(Thread* self) SHARED_REQUIRES(Locks::mutator_lock_)
+ mirror::Object* AllocObject(Thread* self)
+ SHARED_REQUIRES(Locks::mutator_lock_)
REQUIRES(!Roles::uninterruptible_);
// TODO: replace this with multiple methods that allocate the correct managed type.
template <class T>
mirror::ObjectArray<T>* AllocObjectArray(Thread* self, size_t length)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!Roles::uninterruptible_);
mirror::ObjectArray<mirror::Class>* AllocClassArray(Thread* self, size_t length)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!Roles::uninterruptible_);
mirror::ObjectArray<mirror::String>* AllocStringArray(Thread* self, size_t length)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!Roles::uninterruptible_);
ArtField* AllocArtFieldArray(Thread* self, size_t length);
ArtMethod* AllocArtMethodArray(Thread* self, size_t length);
mirror::PointerArray* AllocPointerArray(Thread* self, size_t length)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!Roles::uninterruptible_);
mirror::IfTable* AllocIfTable(Thread* self, size_t ifcount)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!Roles::uninterruptible_);
- mirror::ObjectArray<mirror::StackTraceElement>* AllocStackTraceElementArray(
- Thread* self, size_t length) SHARED_REQUIRES(Locks::mutator_lock_)
- REQUIRES(!Roles::uninterruptible_);
+ mirror::ObjectArray<mirror::StackTraceElement>* AllocStackTraceElementArray(Thread* self,
+ size_t length)
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!Roles::uninterruptible_);
void VerifyClass(Thread* self, Handle<mirror::Class> klass)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
- bool VerifyClassUsingOatFile(const DexFile& dex_file, mirror::Class* klass,
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
+ bool VerifyClassUsingOatFile(const DexFile& dex_file,
+ mirror::Class* klass,
mirror::Class::Status& oat_file_class_status)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
void ResolveClassExceptionHandlerTypes(const DexFile& dex_file,
Handle<mirror::Class> klass)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
void ResolveMethodExceptionHandlerTypes(const DexFile& dex_file, ArtMethod* klass)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
- mirror::Class* CreateProxyClass(ScopedObjectAccessAlreadyRunnable& soa, jstring name,
- jobjectArray interfaces, jobject loader, jobjectArray methods,
+ mirror::Class* CreateProxyClass(ScopedObjectAccessAlreadyRunnable& soa,
+ jstring name,
+ jobjectArray interfaces,
+ jobject loader,
+ jobjectArray methods,
jobjectArray throws)
SHARED_REQUIRES(Locks::mutator_lock_);
std::string GetDescriptorForProxy(mirror::Class* proxy_class)
SHARED_REQUIRES(Locks::mutator_lock_);
- ArtMethod* FindMethodForProxy(mirror::Class* proxy_class, ArtMethod* proxy_method)
+ ArtMethod* FindMethodForProxy(mirror::Class* proxy_class,
+ ArtMethod* proxy_method)
REQUIRES(!dex_lock_)
SHARED_REQUIRES(Locks::mutator_lock_);
SHARED_REQUIRES(Locks::mutator_lock_);
// Get the oat code for a method from a method index.
- const void* GetQuickOatCodeFor(const DexFile& dex_file, uint16_t class_def_idx,
+ const void* GetQuickOatCodeFor(const DexFile& dex_file,
+ uint16_t class_def_idx,
uint32_t method_idx)
SHARED_REQUIRES(Locks::mutator_lock_);
const void* GetOatMethodQuickCodeFor(ArtMethod* method)
SHARED_REQUIRES(Locks::mutator_lock_);
- const OatFile::OatMethod FindOatMethodFor(ArtMethod* method, bool* found)
+ const OatFile::OatMethod FindOatMethodFor(ArtMethod* method, out<bool> found)
SHARED_REQUIRES(Locks::mutator_lock_);
pid_t GetClassesLockOwner(); // For SignalCatcher.
// Returns true if the method can be called with its direct code pointer, false otherwise.
bool MayBeCalledWithDirectCodePointer(ArtMethod* m)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
// Creates a GlobalRef PathClassLoader that can be used to load classes from the given dex files.
// Note: the objects are not completely set up. Do not use this outside of tests and the compiler.
- jobject CreatePathClassLoader(Thread* self, std::vector<const DexFile*>& dex_files)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ jobject CreatePathClassLoader(Thread* self, const std::vector<const DexFile*>& dex_files)
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
size_t GetImagePointerSize() const {
DCHECK(ValidPointerSize(image_pointer_size_)) << image_pointer_size_;
// For early bootstrapping by Init
mirror::Class* AllocClass(Thread* self, mirror::Class* java_lang_Class, uint32_t class_size)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!Roles::uninterruptible_);
// Alloc* convenience functions to avoid needing to pass in mirror::Class*
// values that are known to the ClassLinker such as
// kObjectArrayClass and kJavaLangString etc.
mirror::Class* AllocClass(Thread* self, uint32_t class_size)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!Roles::uninterruptible_);
mirror::DexCache* AllocDexCache(Thread* self, const DexFile& dex_file)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!Roles::uninterruptible_);
mirror::Class* CreatePrimitiveClass(Thread* self, Primitive::Type type)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!Roles::uninterruptible_);
mirror::Class* InitializePrimitiveClass(mirror::Class* primitive_class, Primitive::Type type)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!Roles::uninterruptible_);
- mirror::Class* CreateArrayClass(Thread* self, const char* descriptor, size_t hash,
+ mirror::Class* CreateArrayClass(Thread* self,
+ const char* descriptor,
+ size_t hash,
Handle<mirror::ClassLoader> class_loader)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_, !Roles::uninterruptible_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_, !Roles::uninterruptible_);
void AppendToBootClassPath(Thread* self, const DexFile& dex_file)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
void AppendToBootClassPath(const DexFile& dex_file, Handle<mirror::DexCache> dex_cache)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
// Precomputes size needed for Class, in the case of a non-temporary class this size must be
// sufficient to hold all static fields.
// Setup the classloader, class def index, type idx so that we can insert this class in the class
// table.
- void SetupClass(const DexFile& dex_file, const DexFile::ClassDef& dex_class_def,
- Handle<mirror::Class> klass, mirror::ClassLoader* class_loader)
+ void SetupClass(const DexFile& dex_file,
+ const DexFile::ClassDef& dex_class_def,
+ Handle<mirror::Class> klass,
+ mirror::ClassLoader* class_loader)
SHARED_REQUIRES(Locks::mutator_lock_);
- void LoadClass(Thread* self, const DexFile& dex_file, const DexFile::ClassDef& dex_class_def,
+ void LoadClass(Thread* self,
+ const DexFile& dex_file,
+ const DexFile::ClassDef& dex_class_def,
Handle<mirror::Class> klass)
SHARED_REQUIRES(Locks::mutator_lock_);
- void LoadClassMembers(Thread* self, const DexFile& dex_file, const uint8_t* class_data,
- Handle<mirror::Class> klass, const OatFile::OatClass* oat_class)
+ void LoadClassMembers(Thread* self,
+ const DexFile& dex_file,
+ const uint8_t* class_data,
+ Handle<mirror::Class> klass,
+ const OatFile::OatClass* oat_class)
SHARED_REQUIRES(Locks::mutator_lock_);
- void LoadField(const ClassDataItemIterator& it, Handle<mirror::Class> klass,
+ void LoadField(const ClassDataItemIterator& it,
+ Handle<mirror::Class> klass,
ArtField* dst)
SHARED_REQUIRES(Locks::mutator_lock_);
- void LoadMethod(Thread* self, const DexFile& dex_file, const ClassDataItemIterator& it,
- Handle<mirror::Class> klass, ArtMethod* dst)
+ void LoadMethod(Thread* self,
+ const DexFile& dex_file,
+ const ClassDataItemIterator& it,
+ Handle<mirror::Class> klass,
+ ArtMethod* dst)
SHARED_REQUIRES(Locks::mutator_lock_);
void FixupStaticTrampolines(mirror::Class* klass) SHARED_REQUIRES(Locks::mutator_lock_);
// Finds the associated oat class for a dex_file and descriptor. Returns an invalid OatClass on
// error and sets found to false.
- OatFile::OatClass FindOatClass(const DexFile& dex_file, uint16_t class_def_idx, bool* found)
+ OatFile::OatClass FindOatClass(const DexFile& dex_file, uint16_t class_def_idx, out<bool> found)
SHARED_REQUIRES(Locks::mutator_lock_);
void RegisterDexFileLocked(const DexFile& dex_file, Handle<mirror::DexCache> dex_cache)
bool IsDexFileRegisteredLocked(const DexFile& dex_file)
SHARED_REQUIRES(dex_lock_, Locks::mutator_lock_);
- bool InitializeClass(Thread* self, Handle<mirror::Class> klass, bool can_run_clinit,
+ bool InitializeClass(Thread* self,
+ Handle<mirror::Class> klass,
+ bool can_run_clinit,
bool can_init_parents)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
- bool WaitForInitializeClass(Handle<mirror::Class> klass, Thread* self,
- ObjectLock<mirror::Class>& lock);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
+ bool WaitForInitializeClass(Handle<mirror::Class> klass,
+ Thread* self,
+ ObjectLock<mirror::Class>* lock);
bool ValidateSuperClassDescriptors(Handle<mirror::Class> klass)
SHARED_REQUIRES(Locks::mutator_lock_);
- bool IsSameDescriptorInDifferentClassContexts(Thread* self, const char* descriptor,
+ bool IsSameDescriptorInDifferentClassContexts(Thread* self,
+ const char* descriptor,
Handle<mirror::ClassLoader> class_loader1,
Handle<mirror::ClassLoader> class_loader2)
SHARED_REQUIRES(Locks::mutator_lock_);
- bool IsSameMethodSignatureInDifferentClassContexts(Thread* self, ArtMethod* method,
- mirror::Class* klass1, mirror::Class* klass2)
+ bool IsSameMethodSignatureInDifferentClassContexts(Thread* self,
+ ArtMethod* method,
+ mirror::Class* klass1,
+ mirror::Class* klass2)
SHARED_REQUIRES(Locks::mutator_lock_);
- bool LinkClass(Thread* self, const char* descriptor, Handle<mirror::Class> klass,
+ bool LinkClass(Thread* self,
+ const char* descriptor,
+ Handle<mirror::Class> klass,
Handle<mirror::ObjectArray<mirror::Class>> interfaces,
- MutableHandle<mirror::Class>* h_new_class_out)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!Locks::classlinker_classes_lock_);
+ out<MutableHandle<mirror::Class>> h_new_class_out)
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!Locks::classlinker_classes_lock_);
bool LinkSuperClass(Handle<mirror::Class> klass)
SHARED_REQUIRES(Locks::mutator_lock_);
bool LoadSuperAndInterfaces(Handle<mirror::Class> klass, const DexFile& dex_file)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!dex_lock_);
bool LinkMethods(Thread* self,
Handle<mirror::Class> klass,
Handle<mirror::ObjectArray<mirror::Class>> interfaces,
- ArtMethod** out_imt)
+ out<ArtMethod* [mirror::Class::kImtSize]> out_imt)
SHARED_REQUIRES(Locks::mutator_lock_);
bool LinkVirtualMethods(Thread* self, Handle<mirror::Class> klass)
SHARED_REQUIRES(Locks::mutator_lock_);
- bool LinkInterfaceMethods(Thread* self, Handle<mirror::Class> klass,
+ bool LinkInterfaceMethods(Thread* self,
+ Handle<mirror::Class> klass,
Handle<mirror::ObjectArray<mirror::Class>> interfaces,
- ArtMethod** out_imt)
+ out<ArtMethod* [mirror::Class::kImtSize]> out_imt)
SHARED_REQUIRES(Locks::mutator_lock_);
- bool LinkStaticFields(Thread* self, Handle<mirror::Class> klass, size_t* class_size)
+ bool LinkStaticFields(Thread* self,
+ Handle<mirror::Class> klass,
+ out<size_t> class_size)
SHARED_REQUIRES(Locks::mutator_lock_);
bool LinkInstanceFields(Thread* self, Handle<mirror::Class> klass)
SHARED_REQUIRES(Locks::mutator_lock_);
- bool LinkFields(Thread* self, Handle<mirror::Class> klass, bool is_static, size_t* class_size)
+ bool LinkFields(Thread* self, Handle<mirror::Class> klass, bool is_static, out<size_t> class_size)
SHARED_REQUIRES(Locks::mutator_lock_);
- void LinkCode(ArtMethod* method, const OatFile::OatClass* oat_class,
+ void LinkCode(ArtMethod* method,
+ const OatFile::OatClass* oat_class,
uint32_t class_def_method_index)
SHARED_REQUIRES(Locks::mutator_lock_);
void CreateReferenceInstanceOffsets(Handle<mirror::Class> klass)
REQUIRES(!dex_lock_);
// Check for duplicate class definitions of the given oat file against all open oat files.
- bool HasCollisions(const OatFile* oat_file, std::string* error_msg) REQUIRES(!dex_lock_);
+ bool HasCollisions(const OatFile* oat_file, out<std::string> error_msg) REQUIRES(!dex_lock_);
bool HasInitWithString(Thread* self, const char* descriptor)
SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!dex_lock_);
bool CanWeInitializeClass(mirror::Class* klass, bool can_init_statics, bool can_init_parents)
SHARED_REQUIRES(Locks::mutator_lock_);
- void UpdateClassVirtualMethods(mirror::Class* klass, ArtMethod* new_methods,
+ void UpdateClassVirtualMethods(mirror::Class* klass,
+ ArtMethod* new_methods,
size_t new_num_methods)
- SHARED_REQUIRES(Locks::mutator_lock_) REQUIRES(!Locks::classlinker_classes_lock_);
+ SHARED_REQUIRES(Locks::mutator_lock_)
+ REQUIRES(!Locks::classlinker_classes_lock_);
std::vector<const DexFile*> boot_class_path_;
std::vector<std::unique_ptr<const DexFile>> opened_dex_files_;
#include "art_field-inl.h"
#include "art_method-inl.h"
#include "base/time_utils.h"
+#include "base/out.h"
#include "class_linker.h"
#include "class_linker-inl.h"
#include "dex_file-inl.h"
void Dbg::FindLoadedClassBySignature(const char* descriptor, std::vector<JDWP::RefTypeId>* ids) {
std::vector<mirror::Class*> classes;
- Runtime::Current()->GetClassLinker()->LookupClasses(descriptor, classes);
+ Runtime::Current()->GetClassLinker()->LookupClasses(descriptor, outof(classes));
ids->clear();
for (size_t i = 0; i < classes.size(); ++i) {
ids->push_back(gRegistry->Add(classes[i]));
#include "dalvik_system_DexFile.h"
#include "base/logging.h"
+#include "base/out.h"
#include "base/stl_util.h"
#include "base/stringprintf.h"
#include "class_linker.h"
std::vector<std::unique_ptr<const DexFile>> dex_files;
std::vector<std::string> error_msgs;
- dex_files = linker->OpenDexFilesFromOat(sourceName.c_str(), outputName.c_str(), &error_msgs);
+ dex_files =
+ linker->OpenDexFilesFromOat(sourceName.c_str(), outputName.c_str(), outof(error_msgs));
if (!dex_files.empty()) {
jlongArray array = ConvertNativeToJavaArray(env, dex_files);
#include "java_lang_VMClassLoader.h"
+#include "base/out.h"
#include "class_linker.h"
#include "jni_internal.h"
#include "mirror/class_loader.h"
// Try the common case.
StackHandleScope<1> hs(soa.Self());
cl->FindClassInPathClassLoader(soa, soa.Self(), descriptor.c_str(), descriptor_hash,
- hs.NewHandle(loader), &c);
+ hs.NewHandle(loader), outof(c));
if (c != nullptr) {
return soa.AddLocalReference<jclass>(c);
}
#include <gtest/gtest.h>
#include "art_field-inl.h"
+#include "base/out.h"
#include "class_linker-inl.h"
#include "common_runtime_test.h"
#include "compiler_callbacks.h"
ClassLinker* linker = Runtime::Current()->GetClassLinker();
std::vector<std::unique_ptr<const DexFile>> dex_files;
std::vector<std::string> error_msgs;
- dex_files = linker->OpenDexFilesFromOat(dex_location_.c_str(), oat_location_.c_str(), &error_msgs);
+ dex_files = linker->OpenDexFilesFromOat(dex_location_.c_str(),
+ oat_location_.c_str(),
+ outof(error_msgs));
CHECK(!dex_files.empty()) << Join(error_msgs, '\n');
CHECK(dex_files[0]->GetOatDexFile() != nullptr) << dex_files[0]->GetLocation();
loaded_oat_file_ = dex_files[0]->GetOatDexFile()->GetOatFile();
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