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/*
* Copyright (C) 2011 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 "check_reference_map_visitor.h"
#include "jni.h"
namespace art {
#define CHECK_REGS(...) do { \
int t[] = {__VA_ARGS__}; \
int t_size = sizeof(t) / sizeof(*t); \
CheckReferences(t, t_size, GetNativePcOffset()); \
} while (false);
static int gJava_StackWalk_refmap_calls = 0;
class TestReferenceMapVisitor : public CheckReferenceMapVisitor {
public:
explicit TestReferenceMapVisitor(Thread* thread) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_)
: CheckReferenceMapVisitor(thread) {}
bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
if (CheckReferenceMapVisitor::VisitFrame()) {
return true;
}
ArtMethod* m = GetMethod();
StringPiece m_name(m->GetName());
// Given the method name and the number of times the method has been called,
// we know the Dex registers with live reference values. Assert that what we
// find is what is expected.
if (m_name == "f") {
if (gJava_StackWalk_refmap_calls == 1) {
CHECK_EQ(1U, GetDexPc());
CHECK_REGS(1);
} else {
CHECK_EQ(gJava_StackWalk_refmap_calls, 2);
CHECK_EQ(5U, GetDexPc());
CHECK_REGS(1);
}
} else if (m_name == "g") {
if (gJava_StackWalk_refmap_calls == 1) {
CHECK_EQ(0xcU, GetDexPc());
CHECK_REGS(0, 2); // Note that v1 is not in the minimal root set
} else {
CHECK_EQ(gJava_StackWalk_refmap_calls, 2);
CHECK_EQ(0xcU, GetDexPc());
CHECK_REGS(0, 2);
}
} else if (m_name == "shlemiel") {
if (gJava_StackWalk_refmap_calls == 1) {
CHECK_EQ(0x380U, GetDexPc());
CHECK_REGS(2, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 25);
} else {
CHECK_EQ(gJava_StackWalk_refmap_calls, 2);
CHECK_EQ(0x380U, GetDexPc());
CHECK_REGS(2, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 25);
}
}
return true;
}
};
extern "C" JNIEXPORT jint JNICALL Java_Main_stackmap(JNIEnv*, jobject, jint count) {
ScopedObjectAccess soa(Thread::Current());
CHECK_EQ(count, 0);
gJava_StackWalk_refmap_calls++;
// Visitor
TestReferenceMapVisitor mapper(soa.Self());
mapper.WalkStack();
return count + 1;
}
extern "C" JNIEXPORT jint JNICALL Java_Main_refmap2(JNIEnv*, jobject, jint count) {
ScopedObjectAccess soa(Thread::Current());
gJava_StackWalk_refmap_calls++;
// Visitor
TestReferenceMapVisitor mapper(soa.Self());
mapper.WalkStack();
return count + 1;
}
} // namespace art
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