1/*
2 * Copyright (C) 2014 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// A dummy implementation of the native-bridge interface.
18
19#include "nativebridge/native_bridge.h"
20
21#include <signal.h>
22
23// NativeBridgeCallbacks implementations
24extern "C" bool native_bridge2_initialize(const android::NativeBridgeRuntimeCallbacks* /* art_cbs */,
25                                         const char* /* app_code_cache_dir */,
26                                         const char* /* isa */) {
27  return true;
28}
29
30extern "C" void* native_bridge2_loadLibrary(const char* /* libpath */, int /* flag */) {
31  return nullptr;
32}
33
34extern "C" void* native_bridge2_getTrampoline(void* /* handle */, const char* /* name */,
35                                             const char* /* shorty */, uint32_t /* len */) {
36  return nullptr;
37}
38
39extern "C" bool native_bridge2_isSupported(const char* /* libpath */) {
40  return false;
41}
42
43extern "C" const struct android::NativeBridgeRuntimeValues* native_bridge2_getAppEnv(
44    const char* /* abi */) {
45  return nullptr;
46}
47
48extern "C" bool native_bridge2_is_compatible_compatible_with(uint32_t version) {
49  // For testing, allow 1 and 2, but disallow 3+.
50  return version <= 2;
51}
52
53static bool native_bridge2_dummy_signal_handler(int, siginfo_t*, void*) {
54  // TODO: Implement something here. We'd either have to have a death test with a log here, or
55  //       we'd have to be able to resume after the faulting instruction...
56  return true;
57}
58
59extern "C" android::NativeBridgeSignalHandlerFn native_bridge2_get_signal_handler(int signal) {
60  if (signal == SIGSEGV) {
61    return &native_bridge2_dummy_signal_handler;
62  }
63  return nullptr;
64}
65
66android::NativeBridgeCallbacks NativeBridgeItf {
67  .version = 2,
68  .initialize = &native_bridge2_initialize,
69  .loadLibrary = &native_bridge2_loadLibrary,
70  .getTrampoline = &native_bridge2_getTrampoline,
71  .isSupported = &native_bridge2_isSupported,
72  .getAppEnv = &native_bridge2_getAppEnv,
73  .isCompatibleWith = &native_bridge2_is_compatible_compatible_with,
74  .getSignalHandler = &native_bridge2_get_signal_handler
75};
76
77