147 lines
5.7 KiB
C++
147 lines
5.7 KiB
C++
/*************************************************************************/
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/* gd_mono_android.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "gd_mono_android.h"
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#if defined(ANDROID_ENABLED)
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#include <dlfcn.h> // dlopen, dlsym
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#include <mono/utils/mono-dl-fallback.h>
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#include "core/os/os.h"
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#include "core/ustring.h"
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#include "platform/android/thread_jandroid.h"
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#include "../utils/path_utils.h"
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#include "../utils/string_utils.h"
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namespace GDMonoAndroid {
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String app_native_lib_dir_cache;
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String determine_app_native_lib_dir() {
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JNIEnv *env = ThreadAndroid::get_env();
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jclass activityThreadClass = env->FindClass("android/app/ActivityThread");
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jmethodID currentActivityThread = env->GetStaticMethodID(activityThreadClass, "currentActivityThread", "()Landroid/app/ActivityThread;");
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jobject activityThread = env->CallStaticObjectMethod(activityThreadClass, currentActivityThread);
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jmethodID getApplication = env->GetMethodID(activityThreadClass, "getApplication", "()Landroid/app/Application;");
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jobject ctx = env->CallObjectMethod(activityThread, getApplication);
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jmethodID getApplicationInfo = env->GetMethodID(env->GetObjectClass(ctx), "getApplicationInfo", "()Landroid/content/pm/ApplicationInfo;");
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jobject applicationInfo = env->CallObjectMethod(ctx, getApplicationInfo);
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jfieldID nativeLibraryDirField = env->GetFieldID(env->GetObjectClass(applicationInfo), "nativeLibraryDir", "Ljava/lang/String;");
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jstring nativeLibraryDir = (jstring)env->GetObjectField(applicationInfo, nativeLibraryDirField);
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String result;
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const char *const nativeLibraryDir_utf8 = env->GetStringUTFChars(nativeLibraryDir, NULL);
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if (nativeLibraryDir_utf8) {
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result.parse_utf8(nativeLibraryDir_utf8);
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env->ReleaseStringUTFChars(nativeLibraryDir, nativeLibraryDir_utf8);
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}
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return result;
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}
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String get_app_native_lib_dir() {
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if (app_native_lib_dir_cache.empty())
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app_native_lib_dir_cache = determine_app_native_lib_dir();
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return app_native_lib_dir_cache;
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}
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int gd_mono_convert_dl_flags(int flags) {
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// from mono's runtime-bootstrap.c
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int lflags = flags & MONO_DL_LOCAL ? 0 : RTLD_GLOBAL;
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if (flags & MONO_DL_LAZY)
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lflags |= RTLD_LAZY;
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else
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lflags |= RTLD_NOW;
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return lflags;
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}
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void *gd_mono_android_dlopen(const char *p_name, int p_flags, char **r_err, void *p_user_data) {
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String name = String::utf8(p_name);
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if (name.ends_with(".dll.so") || name.ends_with(".exe.so")) {
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String app_native_lib_dir = get_app_native_lib_dir();
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String orig_so_name = name.get_file();
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String so_name = "lib-aot-" + orig_so_name;
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String so_path = path::join(app_native_lib_dir, so_name);
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if (!FileAccess::exists(so_path)) {
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if (OS::get_singleton()->is_stdout_verbose())
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OS::get_singleton()->print("Cannot find shared library: '%s'\n", so_path.utf8().get_data());
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return NULL;
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}
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int lflags = gd_mono_convert_dl_flags(p_flags);
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void *handle = dlopen(so_path.utf8().get_data(), lflags);
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if (!handle) {
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if (OS::get_singleton()->is_stdout_verbose())
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OS::get_singleton()->print("Failed to open shared library: '%s'. Error: '%s'\n", so_path.utf8().get_data(), dlerror());
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return NULL;
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}
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if (OS::get_singleton()->is_stdout_verbose())
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OS::get_singleton()->print("Successfully loaded AOT shared library: '%s'\n", so_path.utf8().get_data());
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return handle;
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}
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return NULL;
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}
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void *gd_mono_android_dlsym(void *p_handle, const char *p_name, char **r_err, void *p_user_data) {
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void *sym_addr = dlsym(p_handle, p_name);
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if (sym_addr)
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return sym_addr;
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if (r_err)
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*r_err = str_format_new("%s\n", dlerror());
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return NULL;
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}
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void register_android_dl_fallback() {
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mono_dl_fallback_register(gd_mono_android_dlopen, gd_mono_android_dlsym, NULL, NULL);
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}
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} // namespace GDMonoAndroid
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#endif
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