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
|
/*
* Copyright (C) 2012 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 "callee_save_frame.h"
#include "runtime_support.h"
namespace art {
static uint64_t artInvokeCommon(uint32_t method_idx, Object* this_object, Method* caller_method,
Thread* self, Method** sp, bool access_check, InvokeType type)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
Method* method = FindMethodFast(method_idx, this_object, caller_method, access_check, type);
if (UNLIKELY(method == NULL)) {
FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsAndArgs);
if (UNLIKELY(this_object == NULL && type != kDirect && type != kStatic)) {
ThrowNullPointerExceptionForMethodAccess(caller_method, method_idx, type);
return 0; // failure
}
method = FindMethodFromCode(method_idx, this_object, caller_method, self, access_check, type);
if (UNLIKELY(method == NULL)) {
CHECK(self->IsExceptionPending());
return 0; // failure
}
}
DCHECK(!self->IsExceptionPending());
const void* code = method->GetCode();
// When we return, the caller will branch to this address, so it had better not be 0!
if (UNLIKELY(code == NULL)) {
MethodHelper mh(method);
LOG(FATAL) << "Code was NULL in method: " << PrettyMethod(method)
<< " location: " << mh.GetDexFile().GetLocation();
}
uint32_t method_uint = reinterpret_cast<uint32_t>(method);
uint64_t code_uint = reinterpret_cast<uint32_t>(code);
uint64_t result = ((code_uint << 32) | method_uint);
return result;
}
// See comments in runtime_support_asm.S
extern "C" uint64_t artInvokeInterfaceTrampoline(uint32_t method_idx, Object* this_object,
Method* caller_method, Thread* self,
Method** sp)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return artInvokeCommon(method_idx, this_object, caller_method, self, sp, false, kInterface);
}
extern "C" uint64_t artInvokeInterfaceTrampolineWithAccessCheck(uint32_t method_idx,
Object* this_object,
Method* caller_method, Thread* self,
Method** sp)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return artInvokeCommon(method_idx, this_object, caller_method, self, sp, true, kInterface);
}
extern "C" uint64_t artInvokeDirectTrampolineWithAccessCheck(uint32_t method_idx,
Object* this_object,
Method* caller_method, Thread* self,
Method** sp)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return artInvokeCommon(method_idx, this_object, caller_method, self, sp, true, kDirect);
}
extern "C" uint64_t artInvokeStaticTrampolineWithAccessCheck(uint32_t method_idx,
Object* this_object,
Method* caller_method, Thread* self,
Method** sp)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return artInvokeCommon(method_idx, this_object, caller_method, self, sp, true, kStatic);
}
extern "C" uint64_t artInvokeSuperTrampolineWithAccessCheck(uint32_t method_idx,
Object* this_object,
Method* caller_method, Thread* self,
Method** sp)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return artInvokeCommon(method_idx, this_object, caller_method, self, sp, true, kSuper);
}
extern "C" uint64_t artInvokeVirtualTrampolineWithAccessCheck(uint32_t method_idx,
Object* this_object,
Method* caller_method, Thread* self,
Method** sp)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
return artInvokeCommon(method_idx, this_object, caller_method, self, sp, true, kVirtual);
}
} // namespace art
|
