1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/*
* 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.
*/
#include "arch/context.h"
#include "jni.h"
#include "mirror/art_method-inl.h"
#include "scoped_thread_state_change.h"
#include "stack.h"
#include "thread.h"
namespace art {
namespace {
class TestVisitor : public StackVisitor {
public:
TestVisitor(Thread* thread, Context* context, mirror::Object* this_value)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_)
: StackVisitor(thread, context, StackVisitor::StackWalkKind::kIncludeInlinedFrames),
this_value_(this_value),
found_method_index_(0) {}
bool VisitFrame() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
mirror::ArtMethod* m = GetMethod();
std::string m_name(m->GetName());
if (m_name.compare("testSimpleVReg") == 0) {
found_method_index_ = 1;
uint32_t value = 0;
CHECK(GetVReg(m, 0, kIntVReg, &value));
CHECK_EQ(value, 42u);
bool success = GetVReg(m, 1, kIntVReg, &value);
if (m->IsOptimized(sizeof(void*))) CHECK(!success);
success = GetVReg(m, 2, kIntVReg, &value);
if (m->IsOptimized(sizeof(void*))) CHECK(!success);
CHECK(GetVReg(m, 3, kReferenceVReg, &value));
CHECK_EQ(reinterpret_cast<mirror::Object*>(value), this_value_);
CHECK(GetVReg(m, 4, kIntVReg, &value));
CHECK_EQ(value, 1u);
CHECK(GetVReg(m, 5, kFloatVReg, &value));
uint32_t cast = bit_cast<uint32_t, float>(1.0f);
CHECK_EQ(value, cast);
CHECK(GetVReg(m, 6, kIntVReg, &value));
CHECK_EQ(value, 2u);
CHECK(GetVReg(m, 7, kIntVReg, &value));
CHECK_EQ(value, true);
CHECK(GetVReg(m, 8, kIntVReg, &value));
CHECK_EQ(value, 3u);
CHECK(GetVReg(m, 9, kIntVReg, &value));
CHECK_EQ(value, static_cast<uint32_t>('c'));
} else if (m_name.compare("testPairVReg") == 0) {
found_method_index_ = 2;
uint64_t value = 0;
CHECK(GetVRegPair(m, 0, kLongLoVReg, kLongHiVReg, &value));
CHECK_EQ(value, 42u);
bool success = GetVRegPair(m, 2, kLongLoVReg, kLongHiVReg, &value);
if (m->IsOptimized(sizeof(void*))) CHECK(!success);
success = GetVRegPair(m, 4, kLongLoVReg, kLongHiVReg, &value);
if (m->IsOptimized(sizeof(void*))) CHECK(!success);
uint32_t value32 = 0;
CHECK(GetVReg(m, 6, kReferenceVReg, &value32));
CHECK_EQ(reinterpret_cast<mirror::Object*>(value32), this_value_);
CHECK(GetVRegPair(m, 7, kLongLoVReg, kLongHiVReg, &value));
CHECK_EQ(static_cast<int64_t>(value), std::numeric_limits<int64_t>::min());
CHECK(GetVRegPair(m, 9, kLongLoVReg, kLongHiVReg, &value));
CHECK_EQ(static_cast<int64_t>(value), std::numeric_limits<int64_t>::max());
CHECK(GetVRegPair(m, 11, kLongLoVReg, kLongHiVReg, &value));
CHECK_EQ(value, 0u);
CHECK(GetVRegPair(m, 13, kDoubleLoVReg, kDoubleHiVReg, &value));
uint64_t cast = bit_cast<uint64_t, double>(2.0);
CHECK_EQ(value, cast);
}
return true;
}
mirror::Object* this_value_;
// Value returned to Java to ensure the methods testSimpleVReg and testPairVReg
// have been found and tested.
jint found_method_index_;
};
extern "C" JNIEXPORT jint JNICALL Java_Main_doNativeCall(JNIEnv*, jobject value) {
ScopedObjectAccess soa(Thread::Current());
std::unique_ptr<Context> context(Context::Create());
TestVisitor visitor(soa.Self(), context.get(), soa.Decode<mirror::Object*>(value));
visitor.WalkStack();
return visitor.found_method_index_;
}
} // namespace
} // namespace art
|
