ART: Add heap iteration callback
Add callback support for heap iteration. Visiting of fields will
be done in a follow-up.
Add a test.
Bug: 31385354
Test: m test-art-host-run-test-906-iterate-heap
Test: m ART_TEST_GC_STRESS=true ART_TEST_GC_VERIFY=true test-art-host-run-test-906-iterate-heap
Change-Id: I7bcf6751e6df4ef58756ba97701050b2ff5eb07b
diff --git a/runtime/openjdkjvmti/Android.bp b/runtime/openjdkjvmti/Android.bp
index 2d9149a..de6683c 100644
--- a/runtime/openjdkjvmti/Android.bp
+++ b/runtime/openjdkjvmti/Android.bp
@@ -18,6 +18,7 @@
defaults: ["art_defaults"],
host_supported: true,
srcs: ["events.cc",
+ "heap.cc",
"object_tagging.cc",
"OpenjdkJvmTi.cc",
"transform.cc"],
diff --git a/runtime/openjdkjvmti/OpenjdkJvmTi.cc b/runtime/openjdkjvmti/OpenjdkJvmTi.cc
index 36be2a0..05da585 100644
--- a/runtime/openjdkjvmti/OpenjdkJvmTi.cc
+++ b/runtime/openjdkjvmti/OpenjdkJvmTi.cc
@@ -39,6 +39,7 @@
#include "art_jvmti.h"
#include "base/mutex.h"
#include "events-inl.h"
+#include "heap.h"
#include "jni_env_ext-inl.h"
#include "object_tagging.h"
#include "obj_ptr-inl.h"
@@ -276,7 +277,8 @@
jclass klass,
const jvmtiHeapCallbacks* callbacks,
const void* user_data) {
- return ERR(NOT_IMPLEMENTED);
+ HeapUtil heap_util(&gObjectTagTable);
+ return heap_util.IterateThroughHeap(env, heap_filter, klass, callbacks, user_data);
}
static jvmtiError GetTag(jvmtiEnv* env, jobject object, jlong* tag_ptr) {
diff --git a/runtime/openjdkjvmti/heap.cc b/runtime/openjdkjvmti/heap.cc
new file mode 100644
index 0000000..95d9a1d
--- /dev/null
+++ b/runtime/openjdkjvmti/heap.cc
@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#include "heap.h"
+
+#include "art_jvmti.h"
+#include "base/macros.h"
+#include "base/mutex.h"
+#include "gc/heap.h"
+#include "mirror/class.h"
+#include "object_callbacks.h"
+#include "object_tagging.h"
+#include "obj_ptr-inl.h"
+#include "runtime.h"
+#include "scoped_thread_state_change-inl.h"
+#include "thread-inl.h"
+
+namespace openjdkjvmti {
+
+struct IterateThroughHeapData {
+ IterateThroughHeapData(HeapUtil* _heap_util,
+ jint heap_filter,
+ art::ObjPtr<art::mirror::Class> klass,
+ const jvmtiHeapCallbacks* _callbacks,
+ const void* _user_data)
+ : heap_util(_heap_util),
+ filter_klass(klass),
+ callbacks(_callbacks),
+ user_data(_user_data),
+ filter_out_tagged((heap_filter & JVMTI_HEAP_FILTER_TAGGED) != 0),
+ filter_out_untagged((heap_filter & JVMTI_HEAP_FILTER_UNTAGGED) != 0),
+ filter_out_class_tagged((heap_filter & JVMTI_HEAP_FILTER_CLASS_TAGGED) != 0),
+ filter_out_class_untagged((heap_filter & JVMTI_HEAP_FILTER_CLASS_UNTAGGED) != 0),
+ any_filter(filter_out_tagged ||
+ filter_out_untagged ||
+ filter_out_class_tagged ||
+ filter_out_class_untagged),
+ stop_reports(false) {
+ }
+
+ bool ShouldReportByHeapFilter(jlong tag, jlong class_tag) {
+ if (!any_filter) {
+ return true;
+ }
+
+ if ((tag == 0 && filter_out_untagged) || (tag != 0 && filter_out_tagged)) {
+ return false;
+ }
+
+ if ((class_tag == 0 && filter_out_class_untagged) ||
+ (class_tag != 0 && filter_out_class_tagged)) {
+ return false;
+ }
+
+ return true;
+ }
+
+ HeapUtil* heap_util;
+ art::ObjPtr<art::mirror::Class> filter_klass;
+ const jvmtiHeapCallbacks* callbacks;
+ const void* user_data;
+ const bool filter_out_tagged;
+ const bool filter_out_untagged;
+ const bool filter_out_class_tagged;
+ const bool filter_out_class_untagged;
+ const bool any_filter;
+
+ bool stop_reports;
+};
+
+static void IterateThroughHeapObjectCallback(art::mirror::Object* obj, void* arg)
+ REQUIRES_SHARED(art::Locks::mutator_lock_) {
+ IterateThroughHeapData* ithd = reinterpret_cast<IterateThroughHeapData*>(arg);
+ // Early return, as we can't really stop visiting.
+ if (ithd->stop_reports) {
+ return;
+ }
+
+ art::ScopedAssertNoThreadSuspension no_suspension("IterateThroughHeapCallback");
+
+ jlong tag = 0;
+ ithd->heap_util->GetTags()->GetTag(obj, &tag);
+
+ jlong class_tag = 0;
+ art::ObjPtr<art::mirror::Class> klass = obj->GetClass();
+ ithd->heap_util->GetTags()->GetTag(klass.Ptr(), &class_tag);
+ // For simplicity, even if we find a tag = 0, assume 0 = not tagged.
+
+ if (!ithd->ShouldReportByHeapFilter(tag, class_tag)) {
+ return;
+ }
+
+ // TODO: Handle array_primitive_value_callback.
+
+ if (ithd->filter_klass != nullptr) {
+ if (ithd->filter_klass != klass) {
+ return;
+ }
+ }
+
+ jlong size = obj->SizeOf();
+
+ jint length = -1;
+ if (obj->IsArrayInstance()) {
+ length = obj->AsArray()->GetLength();
+ }
+
+ jlong saved_tag = tag;
+ jint ret = ithd->callbacks->heap_iteration_callback(class_tag,
+ size,
+ &tag,
+ length,
+ const_cast<void*>(ithd->user_data));
+
+ if (tag != saved_tag) {
+ ithd->heap_util->GetTags()->Set(obj, tag);
+ }
+
+ ithd->stop_reports = (ret & JVMTI_VISIT_ABORT) != 0;
+
+ // TODO Implement array primitive and string primitive callback.
+ // TODO Implement primitive field callback.
+}
+
+jvmtiError HeapUtil::IterateThroughHeap(jvmtiEnv* env ATTRIBUTE_UNUSED,
+ jint heap_filter,
+ jclass klass,
+ const jvmtiHeapCallbacks* callbacks,
+ const void* user_data) {
+ if (callbacks == nullptr) {
+ return ERR(NULL_POINTER);
+ }
+
+ if (callbacks->array_primitive_value_callback != nullptr) {
+ // TODO: Implement.
+ return ERR(NOT_IMPLEMENTED);
+ }
+
+ art::Thread* self = art::Thread::Current();
+ art::ScopedObjectAccess soa(self); // Now we know we have the shared lock.
+
+ IterateThroughHeapData ithd(this,
+ heap_filter,
+ soa.Decode<art::mirror::Class>(klass),
+ callbacks,
+ user_data);
+
+ art::Runtime::Current()->GetHeap()->VisitObjects(IterateThroughHeapObjectCallback, &ithd);
+
+ return ERR(NONE);
+}
+
+} // namespace openjdkjvmti
diff --git a/runtime/openjdkjvmti/heap.h b/runtime/openjdkjvmti/heap.h
new file mode 100644
index 0000000..fb9a216
--- /dev/null
+++ b/runtime/openjdkjvmti/heap.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2016 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_OPENJDKJVMTI_HEAP_H_
+#define ART_RUNTIME_OPENJDKJVMTI_HEAP_H_
+
+#include "jvmti.h"
+
+namespace openjdkjvmti {
+
+class ObjectTagTable;
+
+class HeapUtil {
+ public:
+ explicit HeapUtil(ObjectTagTable* tags) : tags_(tags) {
+ }
+
+ jvmtiError IterateThroughHeap(jvmtiEnv* env,
+ jint heap_filter,
+ jclass klass,
+ const jvmtiHeapCallbacks* callbacks,
+ const void* user_data);
+
+ ObjectTagTable* GetTags() {
+ return tags_;
+ }
+
+ private:
+ ObjectTagTable* tags_;
+};
+
+} // namespace openjdkjvmti
+
+#endif // ART_RUNTIME_OPENJDKJVMTI_HEAP_H_
diff --git a/runtime/openjdkjvmti/object_tagging.cc b/runtime/openjdkjvmti/object_tagging.cc
index bb17cac..29d4830 100644
--- a/runtime/openjdkjvmti/object_tagging.cc
+++ b/runtime/openjdkjvmti/object_tagging.cc
@@ -87,6 +87,33 @@
return false;
}
+bool ObjectTagTable::Set(art::mirror::Object* obj, jlong new_tag) {
+ art::Thread* self = art::Thread::Current();
+ art::MutexLock mu(self, allow_disallow_lock_);
+ Wait(self);
+
+ for (auto& pair : tagged_objects_) {
+ if (pair.first.Read(nullptr) == obj) {
+ pair.second = new_tag;
+ return true;
+ }
+ }
+
+ // TODO refactor with Add.
+ if (first_free_ == tagged_objects_.size()) {
+ tagged_objects_.push_back(Entry(art::GcRoot<art::mirror::Object>(obj), new_tag));
+ first_free_++;
+ } else {
+ DCHECK_LT(first_free_, tagged_objects_.size());
+ DCHECK(tagged_objects_[first_free_].first.IsNull());
+ tagged_objects_[first_free_] = Entry(art::GcRoot<art::mirror::Object>(obj), new_tag);
+ // TODO: scan for free elements.
+ first_free_ = tagged_objects_.size();
+ }
+
+ return false;
+}
+
void ObjectTagTable::Sweep(art::IsMarkedVisitor* visitor) {
if (event_handler_->IsEventEnabledAnywhere(JVMTI_EVENT_OBJECT_FREE)) {
SweepImpl<true>(visitor);
diff --git a/runtime/openjdkjvmti/object_tagging.h b/runtime/openjdkjvmti/object_tagging.h
index 45f3e4f..b399e65 100644
--- a/runtime/openjdkjvmti/object_tagging.h
+++ b/runtime/openjdkjvmti/object_tagging.h
@@ -42,6 +42,10 @@
REQUIRES_SHARED(art::Locks::mutator_lock_)
REQUIRES(!allow_disallow_lock_);
+ bool Set(art::mirror::Object* obj, jlong tag)
+ REQUIRES_SHARED(art::Locks::mutator_lock_)
+ REQUIRES(!allow_disallow_lock_);
+
bool GetTag(art::mirror::Object* obj, jlong* result)
REQUIRES_SHARED(art::Locks::mutator_lock_)
REQUIRES(!allow_disallow_lock_) {
diff --git a/test/906-iterate-heap/build b/test/906-iterate-heap/build
new file mode 100755
index 0000000..898e2e5
--- /dev/null
+++ b/test/906-iterate-heap/build
@@ -0,0 +1,17 @@
+#!/bin/bash
+#
+# Copyright 2016 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.
+
+./default-build "$@" --experimental agents
diff --git a/test/906-iterate-heap/expected.txt b/test/906-iterate-heap/expected.txt
new file mode 100644
index 0000000..72cd47d
--- /dev/null
+++ b/test/906-iterate-heap/expected.txt
@@ -0,0 +1,2 @@
+[{tag=1, class-tag=0, size=8, length=-1}, {tag=2, class-tag=100, size=8, length=-1}, {tag=3, class-tag=100, size=8, length=-1}, {tag=4, class-tag=0, size=32, length=5}, {tag=100, class-tag=0, size=<class>, length=-1}]
+[{tag=11, class-tag=0, size=8, length=-1}, {tag=12, class-tag=110, size=8, length=-1}, {tag=13, class-tag=110, size=8, length=-1}, {tag=14, class-tag=0, size=32, length=5}, {tag=110, class-tag=0, size=<class>, length=-1}]
diff --git a/test/906-iterate-heap/info.txt b/test/906-iterate-heap/info.txt
new file mode 100644
index 0000000..875a5f6
--- /dev/null
+++ b/test/906-iterate-heap/info.txt
@@ -0,0 +1 @@
+Tests basic functions in the jvmti plugin.
diff --git a/test/906-iterate-heap/iterate_heap.cc b/test/906-iterate-heap/iterate_heap.cc
new file mode 100644
index 0000000..ab1d8d8
--- /dev/null
+++ b/test/906-iterate-heap/iterate_heap.cc
@@ -0,0 +1,187 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#include "iterate_heap.h"
+
+#include <iostream>
+#include <pthread.h>
+#include <stdio.h>
+#include <vector>
+
+#include "base/logging.h"
+#include "jni.h"
+#include "openjdkjvmti/jvmti.h"
+#include "ScopedPrimitiveArray.h"
+#include "ti-agent/common_load.h"
+
+namespace art {
+namespace Test906IterateHeap {
+
+class IterationConfig {
+ public:
+ IterationConfig() {}
+ virtual ~IterationConfig() {}
+
+ virtual jint Handle(jlong class_tag, jlong size, jlong* tag_ptr, jint length) = 0;
+};
+
+static jint JNICALL HeapIterationCallback(jlong class_tag,
+ jlong size,
+ jlong* tag_ptr,
+ jint length,
+ void* user_data) {
+ IterationConfig* config = reinterpret_cast<IterationConfig*>(user_data);
+ return config->Handle(class_tag, size, tag_ptr, length);
+}
+
+static bool Run(jint heap_filter, jclass klass_filter, IterationConfig* config) {
+ jvmtiHeapCallbacks callbacks;
+ memset(&callbacks, 0, sizeof(jvmtiHeapCallbacks));
+ callbacks.heap_iteration_callback = HeapIterationCallback;
+
+ jvmtiError ret = jvmti_env->IterateThroughHeap(heap_filter,
+ klass_filter,
+ &callbacks,
+ config);
+ if (ret != JVMTI_ERROR_NONE) {
+ char* err;
+ jvmti_env->GetErrorName(ret, &err);
+ printf("Failure running IterateThroughHeap: %s\n", err);
+ return false;
+ }
+ return true;
+}
+
+extern "C" JNIEXPORT jint JNICALL Java_Main_iterateThroughHeapCount(JNIEnv* env ATTRIBUTE_UNUSED,
+ jclass klass ATTRIBUTE_UNUSED,
+ jint heap_filter,
+ jclass klass_filter,
+ jint stop_after) {
+ class CountIterationConfig : public IterationConfig {
+ public:
+ CountIterationConfig(jint _counter, jint _stop_after)
+ : counter(_counter),
+ stop_after(_stop_after) {
+ }
+
+ jint Handle(jlong class_tag ATTRIBUTE_UNUSED,
+ jlong size ATTRIBUTE_UNUSED,
+ jlong* tag_ptr ATTRIBUTE_UNUSED,
+ jint length ATTRIBUTE_UNUSED) OVERRIDE {
+ counter++;
+ if (counter == stop_after) {
+ return JVMTI_VISIT_ABORT;
+ }
+ return 0;
+ }
+
+ jint counter;
+ const jint stop_after;
+ };
+
+ CountIterationConfig config(0, stop_after);
+ Run(heap_filter, klass_filter, &config);
+
+ if (config.counter > config.stop_after) {
+ printf("Error: more objects visited than signaled.");
+ }
+
+ return config.counter;
+}
+
+
+extern "C" JNIEXPORT jint JNICALL Java_Main_iterateThroughHeapData(JNIEnv* env,
+ jclass klass ATTRIBUTE_UNUSED,
+ jint heap_filter,
+ jclass klass_filter,
+ jlongArray class_tags,
+ jlongArray sizes,
+ jlongArray tags,
+ jintArray lengths) {
+ class DataIterationConfig : public IterationConfig {
+ public:
+ jint Handle(jlong class_tag, jlong size, jlong* tag_ptr, jint length) OVERRIDE {
+ class_tags_.push_back(class_tag);
+ sizes_.push_back(size);
+ tags_.push_back(*tag_ptr);
+ lengths_.push_back(length);
+
+ return 0; // Continue.
+ }
+
+ std::vector<jlong> class_tags_;
+ std::vector<jlong> sizes_;
+ std::vector<jlong> tags_;
+ std::vector<jint> lengths_;
+ };
+
+ DataIterationConfig config;
+ if (!Run(heap_filter, klass_filter, &config)) {
+ return -1;
+ }
+
+ ScopedLongArrayRW s_class_tags(env, class_tags);
+ ScopedLongArrayRW s_sizes(env, sizes);
+ ScopedLongArrayRW s_tags(env, tags);
+ ScopedIntArrayRW s_lengths(env, lengths);
+
+ for (size_t i = 0; i != config.class_tags_.size(); ++i) {
+ s_class_tags[i] = config.class_tags_[i];
+ s_sizes[i] = config.sizes_[i];
+ s_tags[i] = config.tags_[i];
+ s_lengths[i] = config.lengths_[i];
+ }
+
+ return static_cast<jint>(config.class_tags_.size());
+}
+
+extern "C" JNIEXPORT void JNICALL Java_Main_iterateThroughHeapAdd(JNIEnv* env ATTRIBUTE_UNUSED,
+ jclass klass ATTRIBUTE_UNUSED,
+ jint heap_filter,
+ jclass klass_filter) {
+ class AddIterationConfig : public IterationConfig {
+ public:
+ AddIterationConfig() {}
+
+ jint Handle(jlong class_tag ATTRIBUTE_UNUSED,
+ jlong size ATTRIBUTE_UNUSED,
+ jlong* tag_ptr,
+ jint length ATTRIBUTE_UNUSED) OVERRIDE {
+ jlong current_tag = *tag_ptr;
+ if (current_tag != 0) {
+ *tag_ptr = current_tag + 10;
+ }
+ return 0;
+ }
+ };
+
+ AddIterationConfig config;
+ Run(heap_filter, klass_filter, &config);
+}
+
+// Don't do anything
+jint OnLoad(JavaVM* vm,
+ char* options ATTRIBUTE_UNUSED,
+ void* reserved ATTRIBUTE_UNUSED) {
+ if (vm->GetEnv(reinterpret_cast<void**>(&jvmti_env), JVMTI_VERSION_1_0)) {
+ printf("Unable to get jvmti env!\n");
+ return 1;
+ }
+ return 0;
+}
+
+} // namespace Test906IterateHeap
+} // namespace art
diff --git a/test/906-iterate-heap/iterate_heap.h b/test/906-iterate-heap/iterate_heap.h
new file mode 100644
index 0000000..f25cdba
--- /dev/null
+++ b/test/906-iterate-heap/iterate_heap.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2016 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_TEST_906_ITERATE_HEAP_ITERATE_HEAP_H_
+#define ART_TEST_906_ITERATE_HEAP_ITERATE_HEAP_H_
+
+#include <jni.h>
+
+namespace art {
+namespace Test906IterateHeap {
+
+jint OnLoad(JavaVM* vm, char* options, void* reserved);
+
+} // namespace Test906IterateHeap
+} // namespace art
+
+#endif // ART_TEST_906_ITERATE_HEAP_ITERATE_HEAP_H_
diff --git a/test/906-iterate-heap/run b/test/906-iterate-heap/run
new file mode 100755
index 0000000..3e135a3
--- /dev/null
+++ b/test/906-iterate-heap/run
@@ -0,0 +1,43 @@
+#!/bin/bash
+#
+# Copyright 2016 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.
+
+plugin=libopenjdkjvmtid.so
+agent=libtiagentd.so
+lib=tiagentd
+if [[ "$@" == *"-O"* ]]; then
+ agent=libtiagent.so
+ plugin=libopenjdkjvmti.so
+ lib=tiagent
+fi
+
+if [[ "$@" == *"--jvm"* ]]; then
+ arg="jvm"
+else
+ arg="art"
+fi
+
+if [[ "$@" != *"--debuggable"* ]]; then
+ other_args=" -Xcompiler-option --debuggable "
+else
+ other_args=""
+fi
+
+./default-run "$@" --experimental agents \
+ --experimental runtime-plugins \
+ --runtime-option -agentpath:${agent}=906-iterate-heap,${arg} \
+ --android-runtime-option -Xplugin:${plugin} \
+ ${other_args} \
+ --args ${lib}
diff --git a/test/906-iterate-heap/src/Main.java b/test/906-iterate-heap/src/Main.java
new file mode 100644
index 0000000..544a365
--- /dev/null
+++ b/test/906-iterate-heap/src/Main.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+import java.util.ArrayList;
+import java.util.Collections;
+
+public class Main {
+ public static void main(String[] args) throws Exception {
+ System.loadLibrary(args[1]);
+
+ doTest();
+ }
+
+ public static void doTest() throws Exception {
+ A a = new A();
+ B b = new B();
+ B b2 = new B();
+ C c = new C();
+ A[] aArray = new A[5];
+
+ setTag(a, 1);
+ setTag(b, 2);
+ setTag(b2, 3);
+ setTag(aArray, 4);
+ setTag(B.class, 100);
+
+ int all = iterateThroughHeapCount(0, null, Integer.MAX_VALUE);
+ int tagged = iterateThroughHeapCount(HEAP_FILTER_OUT_UNTAGGED, null, Integer.MAX_VALUE);
+ int untagged = iterateThroughHeapCount(HEAP_FILTER_OUT_TAGGED, null, Integer.MAX_VALUE);
+ int taggedClass = iterateThroughHeapCount(HEAP_FILTER_OUT_CLASS_UNTAGGED, null,
+ Integer.MAX_VALUE);
+ int untaggedClass = iterateThroughHeapCount(HEAP_FILTER_OUT_CLASS_TAGGED, null,
+ Integer.MAX_VALUE);
+
+ if (all != tagged + untagged) {
+ throw new IllegalStateException("Instances: " + all + " != " + tagged + " + " + untagged);
+ }
+ if (all != taggedClass + untaggedClass) {
+ throw new IllegalStateException("By class: " + all + " != " + taggedClass + " + " +
+ untaggedClass);
+ }
+ if (tagged != 5) {
+ throw new IllegalStateException(tagged + " tagged objects");
+ }
+ if (taggedClass != 2) {
+ throw new IllegalStateException(tagged + " objects with tagged class");
+ }
+ if (all == tagged) {
+ throw new IllegalStateException("All objects tagged");
+ }
+ if (all == taggedClass) {
+ throw new IllegalStateException("All objects have tagged class");
+ }
+
+ long classTags[] = new long[100];
+ long sizes[] = new long[100];
+ long tags[] = new long[100];
+ int lengths[] = new int[100];
+
+ int n = iterateThroughHeapData(HEAP_FILTER_OUT_UNTAGGED, null, classTags, sizes, tags, lengths);
+ System.out.println(sort(n, classTags, sizes, tags, lengths));
+
+ iterateThroughHeapAdd(HEAP_FILTER_OUT_UNTAGGED, null);
+ n = iterateThroughHeapData(HEAP_FILTER_OUT_UNTAGGED, null, classTags, sizes, tags, lengths);
+ System.out.println(sort(n, classTags, sizes, tags, lengths));
+ }
+
+ static class A {
+ }
+
+ static class B {
+ }
+
+ static class C {
+ }
+
+ static class HeapElem implements Comparable<HeapElem> {
+ long classTag;
+ long size;
+ long tag;
+ int length;
+
+ public int compareTo(HeapElem other) {
+ if (tag != other.tag) {
+ return Long.compare(tag, other.tag);
+ }
+ if (classTag != other.classTag) {
+ return Long.compare(classTag, other.classTag);
+ }
+ if (size != other.size) {
+ return Long.compare(size, other.size);
+ }
+ return Integer.compare(length, other.length);
+ }
+
+ public String toString() {
+ return "{tag=" + tag + ", class-tag=" + classTag + ", size=" +
+ (tag >= 100 ? "<class>" : size) // Class size is dependent on 32-bit vs 64-bit,
+ // so strip it.
+ + ", length=" + length + "}";
+ }
+ }
+
+ private static ArrayList<HeapElem> sort(int n, long classTags[], long sizes[], long tags[],
+ int lengths[]) {
+ ArrayList<HeapElem> ret = new ArrayList<HeapElem>(n);
+ for (int i = 0; i < n; i++) {
+ HeapElem elem = new HeapElem();
+ elem.classTag = classTags[i];
+ elem.size = sizes[i];
+ elem.tag = tags[i];
+ elem.length = lengths[i];
+ ret.add(elem);
+ }
+ Collections.sort(ret);
+ return ret;
+ }
+
+ private static native void setTag(Object o, long tag);
+ private static native long getTag(Object o);
+
+ private final static int HEAP_FILTER_OUT_TAGGED = 0x4;
+ private final static int HEAP_FILTER_OUT_UNTAGGED = 0x8;
+ private final static int HEAP_FILTER_OUT_CLASS_TAGGED = 0x10;
+ private final static int HEAP_FILTER_OUT_CLASS_UNTAGGED = 0x20;
+
+ private static native int iterateThroughHeapCount(int heapFilter,
+ Class<?> klassFilter, int stopAfter);
+ private static native int iterateThroughHeapData(int heapFilter,
+ Class<?> klassFilter, long classTags[], long sizes[], long tags[], int lengths[]);
+ private static native int iterateThroughHeapAdd(int heapFilter,
+ Class<?> klassFilter);
+}
diff --git a/test/Android.bp b/test/Android.bp
index 4457e8a..45673f5 100644
--- a/test/Android.bp
+++ b/test/Android.bp
@@ -238,8 +238,8 @@
shared_libs: ["libartd"],
}
-art_cc_test_library {
- name: "libtiagent",
+art_cc_defaults {
+ name: "libtiagent-defaults",
defaults: ["libartagent-defaults"],
srcs: [
"ti-agent/common_load.cc",
@@ -248,10 +248,18 @@
"903-hello-tagging/tagging.cc",
"904-object-allocation/tracking.cc",
"905-object-free/tracking_free.cc",
+ "906-iterate-heap/iterate_heap.cc",
],
shared_libs: [
- "libart",
"libbase",
+ ],
+}
+
+art_cc_test_library {
+ name: "libtiagent",
+ defaults: ["libtiagent-defaults"],
+ shared_libs: [
+ "libart",
"libopenjdkjvmti",
],
}
@@ -259,20 +267,11 @@
art_cc_test_library {
name: "libtiagentd",
defaults: [
- "libartagent-defaults",
+ "libtiagent-defaults",
"art_debug_defaults",
],
- srcs: [
- "ti-agent/common_load.cc",
- "901-hello-ti-agent/basics.cc",
- "902-hello-transformation/transform.cc",
- "903-hello-tagging/tagging.cc",
- "904-object-allocation/tracking.cc",
- "905-object-free/tracking_free.cc",
- ],
shared_libs: [
"libartd",
- "libbase",
"libopenjdkjvmtid",
],
}
diff --git a/test/ti-agent/common_load.cc b/test/ti-agent/common_load.cc
index 2b8947e..c412636 100644
--- a/test/ti-agent/common_load.cc
+++ b/test/ti-agent/common_load.cc
@@ -29,6 +29,7 @@
#include "903-hello-tagging/tagging.h"
#include "904-object-allocation/tracking.h"
#include "905-object-free/tracking_free.h"
+#include "906-iterate-heap/iterate_heap.h"
namespace art {
@@ -50,6 +51,7 @@
{ "903-hello-tagging", Test903HelloTagging::OnLoad, nullptr },
{ "904-object-allocation", Test904ObjectAllocation::OnLoad, nullptr },
{ "905-object-free", Test905ObjectFree::OnLoad, nullptr },
+ { "906-iterate-heap", Test906IterateHeap::OnLoad, nullptr },
};
static AgentLib* FindAgent(char* name) {
