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 24 extern "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 30 extern "C" void* native_bridge2_loadLibrary(const char* /* libpath */, int /* flag */) { 31 return nullptr; 32 } 33 34 extern "C" void* native_bridge2_getTrampoline(void* /* handle */, const char* /* name */, 35 const char* /* shorty */, uint32_t /* len */) { 36 return nullptr; 37 } 38 39 extern "C" bool native_bridge2_isSupported(const char* /* libpath */) { 40 return false; 41 } 42 43 extern "C" const struct android::NativeBridgeRuntimeValues* native_bridge2_getAppEnv( 44 const char* /* abi */) { 45 return nullptr; 46 } 47 48 extern "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 53 static 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 59 extern "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 66 android::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
