portable_invoke_entrypoints.cc revision ea46f950e7a51585db293cd7f047de190a482414 
1/*
2 * Copyright (C) 2012 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 "entrypoints/entrypoint_utils.h"
18#include "mirror/art_method-inl.h"
19#include "mirror/dex_cache-inl.h"
20#include "mirror/object-inl.h"
21
22namespace art {
23
24static mirror::ArtMethod* FindMethodHelper(uint32_t method_idx,
25                                                mirror::Object* this_object,
26                                                mirror::ArtMethod* caller_method,
27                                                bool access_check,
28                                                InvokeType type,
29                                                Thread* thread)
30    SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
31  mirror::ArtMethod* method = FindMethodFast(method_idx,
32                                                  this_object,
33                                                  caller_method,
34                                                  access_check,
35                                                  type);
36  if (UNLIKELY(method == NULL)) {
37    method = FindMethodFromCode(method_idx, this_object, caller_method,
38                                thread, access_check, type);
39    if (UNLIKELY(method == NULL)) {
40      CHECK(thread->IsExceptionPending());
41      return 0;  // failure
42    }
43  }
44  DCHECK(!thread->IsExceptionPending());
45  const void* code = method->GetEntryPointFromCompiledCode();
46
47  // When we return, the caller will branch to this address, so it had better not be 0!
48  if (UNLIKELY(code == NULL)) {
49      MethodHelper mh(method);
50      LOG(FATAL) << "Code was NULL in method: " << PrettyMethod(method)
51                 << " location: " << mh.GetDexFile().GetLocation();
52  }
53  return method;
54}
55
56extern "C" mirror::Object* art_portable_find_static_method_from_code_with_access_check(uint32_t method_idx,
57                                                                                       mirror::Object* this_object,
58                                                                                       mirror::ArtMethod* referrer,
59                                                                                       Thread* thread)
60    SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
61  return FindMethodHelper(method_idx, this_object, referrer, true, kStatic, thread);
62}
63
64extern "C" mirror::Object* art_portable_find_direct_method_from_code_with_access_check(uint32_t method_idx,
65                                                                                       mirror::Object* this_object,
66                                                                                       mirror::ArtMethod* referrer,
67                                                                                       Thread* thread)
68    SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
69  return FindMethodHelper(method_idx, this_object, referrer, true, kDirect, thread);
70}
71
72extern "C" mirror::Object* art_portable_find_virtual_method_from_code_with_access_check(uint32_t method_idx,
73                                                                                        mirror::Object* this_object,
74                                                                                        mirror::ArtMethod* referrer,
75                                                                                        Thread* thread)
76    SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
77  return FindMethodHelper(method_idx, this_object, referrer, true, kVirtual, thread);
78}
79
80extern "C" mirror::Object* art_portable_find_super_method_from_code_with_access_check(uint32_t method_idx,
81                                                                                      mirror::Object* this_object,
82                                                                                      mirror::ArtMethod* referrer,
83                                                                                      Thread* thread)
84    SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
85  return FindMethodHelper(method_idx, this_object, referrer, true, kSuper, thread);
86}
87
88extern "C" mirror::Object* art_portable_find_interface_method_from_code_with_access_check(uint32_t method_idx,
89                                                                                          mirror::Object* this_object,
90                                                                                          mirror::ArtMethod* referrer,
91                                                                                          Thread* thread)
92    SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
93  return FindMethodHelper(method_idx, this_object, referrer, true, kInterface, thread);
94}
95
96extern "C" mirror::Object* art_portable_find_interface_method_from_code(uint32_t method_idx,
97                                                                        mirror::Object* this_object,
98                                                                        mirror::ArtMethod* referrer,
99                                                                        Thread* thread)
100    SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
101  return FindMethodHelper(method_idx, this_object, referrer, false, kInterface, thread);
102}
103
104}  // namespace art
105