1 /*
2 * Copyright (C) 2020 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 <android/set_abort_message.h>
18 #include <dlfcn.h>
19 #include <jni.h>
20 #include <stdio.h>
21 #include <stdlib.h>
22
23 extern "C" const char* __progname;
24
Java_com_android_bionic_1app_BionicAppTest_progname(JNIEnv * env)25 extern "C" jstring Java_com_android_bionic_1app_BionicAppTest_progname(JNIEnv* env) {
26 return env->NewStringUTF(__progname);
27 }
28
29 extern "C" int main(int argc, char* argv[]);
30
Java_com_android_bionic_1app_BionicAppTest_callMainDirect(JNIEnv * env __unused)31 extern "C" jint Java_com_android_bionic_1app_BionicAppTest_callMainDirect(JNIEnv* env __unused) {
32 return main(0, nullptr);
33 }
34
35 // Having a variant of the test that uses dlsym is helpful to ensure that main isn't accidentally
36 // hidden in the app's DSO.
Java_com_android_bionic_1app_BionicAppTest_callMainDlsym(JNIEnv * env __unused)37 extern "C" jint Java_com_android_bionic_1app_BionicAppTest_callMainDlsym(JNIEnv* env __unused) {
38 auto pmain = reinterpret_cast<int(*)(int, char**)>(dlsym(RTLD_DEFAULT, "main"));
39 if (pmain == nullptr) {
40 char msg[256];
41 snprintf(msg, sizeof(msg), "dlsym(RTLD_DEFAULT, \"main\") was nullptr: %s", dlerror());
42 android_set_abort_message(msg);
43 abort();
44 }
45 return pmain(0, nullptr);
46 }
47