1 /*
2 * Copyright (C) 2015 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 "arch/context.h"
18 #include "art_method-inl.h"
19 #include "dex/code_item_accessors-inl.h"
20 #include "jni.h"
21 #include "oat_quick_method_header.h"
22 #include "scoped_thread_state_change-inl.h"
23 #include "stack.h"
24 #include "thread.h"
25
26 namespace art {
27
28 namespace {
29
30 class TestVisitor : public StackVisitor {
31 public:
TestVisitor(Thread * thread,Context * context)32 TestVisitor(Thread* thread, Context* context) REQUIRES_SHARED(Locks::mutator_lock_)
33 : StackVisitor(thread, context, StackVisitor::StackWalkKind::kIncludeInlinedFrames) {}
34
VisitFrame()35 bool VisitFrame() REQUIRES_SHARED(Locks::mutator_lock_) {
36 ArtMethod* m = GetMethod();
37 std::string m_name(m->GetName());
38
39 if (m_name.compare("testLiveArgument") == 0) {
40 found_method_ = true;
41 uint32_t value = 0;
42 CHECK(GetVReg(m, 0, kIntVReg, &value));
43 CHECK_EQ(value, 42u);
44 } else if (m_name.compare("$opt$noinline$testIntervalHole") == 0) {
45 uint32_t number_of_dex_registers =
46 CodeItemDataAccessor(m->DexInstructionData()).RegistersSize();
47 uint32_t dex_register_of_first_parameter = number_of_dex_registers - 2;
48 found_method_ = true;
49 uint32_t value = 0;
50 if (GetCurrentQuickFrame() != nullptr &&
51 GetCurrentOatQuickMethodHeader()->IsOptimized() &&
52 !Runtime::Current()->IsJavaDebuggable()) {
53 CHECK_EQ(GetVReg(m, dex_register_of_first_parameter, kIntVReg, &value), false);
54 } else {
55 CHECK(GetVReg(m, dex_register_of_first_parameter, kIntVReg, &value));
56 CHECK_EQ(value, 1u);
57 }
58 }
59
60 return true;
61 }
62
63 // Value returned to Java to ensure the methods testSimpleVReg and testPairVReg
64 // have been found and tested.
65 bool found_method_ = false;
66 };
67
Java_Main_doStaticNativeCallLiveVreg(JNIEnv *,jclass)68 extern "C" JNIEXPORT void JNICALL Java_Main_doStaticNativeCallLiveVreg(JNIEnv*, jclass) {
69 ScopedObjectAccess soa(Thread::Current());
70 std::unique_ptr<Context> context(Context::Create());
71 TestVisitor visitor(soa.Self(), context.get());
72 visitor.WalkStack();
73 CHECK(visitor.found_method_);
74 }
75
76 } // namespace
77
78 } // namespace art
79