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108 lines
3.3 KiB
108 lines
3.3 KiB
4 months ago
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/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <string_view>
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#include "art_method-inl.h"
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#include "check_reference_map_visitor.h"
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#include "jni.h"
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namespace art {
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#define CHECK_REGS_ARE_REFERENCES(...) do { \
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int t[] = {__VA_ARGS__}; \
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int t_size = sizeof(t) / sizeof(*t); \
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CheckReferences( \
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t, t_size, GetDexPc(), GetNativePcOffset(), /* search_for_valid_sack_map= */ false); \
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} while (false);
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static int gJava_StackWalk_refmap_calls = 0;
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class TestReferenceMapVisitor : public CheckReferenceMapVisitor {
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public:
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explicit TestReferenceMapVisitor(Thread* thread) REQUIRES_SHARED(Locks::mutator_lock_)
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: CheckReferenceMapVisitor(thread) {}
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bool VisitFrame() override REQUIRES_SHARED(Locks::mutator_lock_) {
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if (CheckReferenceMapVisitor::VisitFrame()) {
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return true;
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}
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ArtMethod* m = GetMethod();
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std::string_view m_name(m->GetName());
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// Given the method name and the number of times the method has been called,
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// we know the Dex registers with live reference values. Assert that what we
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// find is what is expected.
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if (m_name == "$noinline$f") {
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if (gJava_StackWalk_refmap_calls == 1) {
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CHECK_EQ(1U, GetDexPc());
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CHECK_REGS_ARE_REFERENCES(1);
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} else {
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CHECK_EQ(gJava_StackWalk_refmap_calls, 2);
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CHECK_EQ(5U, GetDexPc());
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CHECK_REGS_ARE_REFERENCES(1);
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}
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found_f_ = true;
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} else if (m_name == "$noinline$g") {
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if (gJava_StackWalk_refmap_calls == 1) {
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CHECK_EQ(0xcU, GetDexPc());
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CHECK_REGS_ARE_REFERENCES(0, 2); // Note that v1 is not in the minimal root set
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} else {
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CHECK_EQ(gJava_StackWalk_refmap_calls, 2);
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CHECK_EQ(0xcU, GetDexPc());
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CHECK_REGS_ARE_REFERENCES(0, 2);
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}
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found_g_ = true;
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} else if (m_name == "shlemiel") {
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if (gJava_StackWalk_refmap_calls == 1) {
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CHECK_EQ(0x380U, GetDexPc());
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CHECK_REGS_ARE_REFERENCES(2, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 25);
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} else {
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CHECK_EQ(gJava_StackWalk_refmap_calls, 2);
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CHECK_EQ(0x380U, GetDexPc());
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CHECK_REGS_ARE_REFERENCES(2, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 25);
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}
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found_shlemiel_ = true;
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}
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return true;
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}
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~TestReferenceMapVisitor() {
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}
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bool found_f_ = false;
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bool found_g_ = false;
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bool found_shlemiel_ = false;
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};
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extern "C" JNIEXPORT jint JNICALL Java_Main_testStackWalk(JNIEnv*, jobject, jint count) {
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ScopedObjectAccess soa(Thread::Current());
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CHECK_EQ(count, 0);
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gJava_StackWalk_refmap_calls++;
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// Visitor
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TestReferenceMapVisitor mapper(soa.Self());
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mapper.WalkStack();
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CHECK(mapper.found_f_);
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CHECK(mapper.found_g_);
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CHECK(mapper.found_shlemiel_);
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return count + 1;
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}
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} // namespace art
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