Clean up remains of NativeActivity-based Android app support

We haven't been able to build NativeActivity-based apps (like the
android/qa/sc and anroid/qa/desktop thingies) since we switched to
DISABLE_DYNLOADING and a single DSO liblo-native-code.so anyway.

No lo_main() any more. <sal/main.h> should not be included ever when
compiling for Android of iOS now.

Lots of stuff binned from vcl's androidinst.cxx, in the (vain?) hope
that it will reduce the amount of never invoked GUI code that gets
linked in.

Change-Id: I25f584864c40110774c728a23151e089620442d9

9 files changed, 20 insertions, 971 deletions

diff --git a/sal/Library_sal.mk b/sal/Library_sal.mk
index d537bc0947a5..8990fc969596 100644
--- a/sal/Library_sal.mk
+++ b/sal/Library_sal.mk
@@ -177,7 +177,7 @@ $(eval $(call gb_Library_add_exception_objects,sal,\
 	sal/osl/unx/module \
 	sal/osl/unx/process \
 	sal/osl/unx/process_impl \
-	sal/osl/unx/salinit \
+	$(if $(filter DESKTOP,$(BUILD_TYPE)), sal/osl/unx/salinit) \
 	sal/osl/unx/uunxapi \
 ))
 $(eval $(call gb_Library_add_cobjects,sal,\
diff --git a/sal/Module_sal.mk b/sal/Module_sal.mk
index c5215b8ce971..475a69599256 100644
--- a/sal/Module_sal.mk
+++ b/sal/Module_sal.mk
@@ -31,7 +31,8 @@ $(eval $(call gb_Module_Module,sal))
 $(eval $(call gb_Module_add_targets,sal,\
 	CustomTarget_generated \
 	CustomTarget_sal_allheaders \
-	Executable_cppunittester \
+	$(if $(filter DESKTOP,$(BUILD_TYPE)), \
+		Executable_cppunittester) \
 	$(if $(filter $(OS),ANDROID), \
 		Library_lo-bootstrap) \
 	Library_sal \
@@ -45,13 +46,14 @@ $(eval $(call gb_Module_add_targets,sal,\
 ))
 
 ifneq (,$(filter DESKTOP,$(BUILD_TYPE)))
+
 $(eval $(call gb_Module_add_targets,sal,\
 		Executable_osl_process_child \
 ))
+
 $(eval $(call gb_Module_add_check_targets,sal,\
 		CppunitTest_sal_osl_process \
 ))
-endif
 
 $(eval $(call gb_Module_add_check_targets,sal,\
 	$(if $(filter TRUE,$(DISABLE_DYNLOADING)),,CppunitTest_Module_DLL) \
@@ -87,6 +89,8 @@ $(eval $(call gb_Module_add_check_targets,sal,\
 	CppunitTest_sal_rtl_math \
 ))
 
+endif
+
 # CppunitTest_sal_osl_pipe has circular dependency on unotest
 # $(eval $(call gb_Module_add_subsequentcheck_targets,sal,\
 	CppunitTest_sal_osl_pipe \
diff --git a/sal/Package_inc.mk b/sal/Package_inc.mk
index 1c19b63087d4..fa4246d5f0f3 100644
--- a/sal/Package_inc.mk
+++ b/sal/Package_inc.mk
@@ -63,7 +63,6 @@ $(eval $(call gb_Package_add_file,sal_inc,inc/osl/thread.hxx,osl/thread.hxx))
 $(eval $(call gb_Package_add_file,sal_inc,inc/osl/time.h,osl/time.h))
 $(eval $(call gb_Package_add_file,sal_inc,inc/osl/util.h,osl/util.h))
 $(eval $(call gb_Package_add_file,sal_inc,inc/osl/detail/file.h,osl/detail/file.h))
-$(eval $(call gb_Package_add_file,sal_inc,inc/osl/detail/android_native_app_glue.h,osl/detail/android_native_app_glue.h))
 $(eval $(call gb_Package_add_file,sal_inc,inc/osl/detail/android-bootstrap.h,osl/detail/android-bootstrap.h))
 $(eval $(call gb_Package_add_file,sal_inc,inc/osl/detail/ios-bootstrap.h,osl/detail/ios-bootstrap.h))
 $(eval $(call gb_Package_add_file,sal_inc,inc/osl/detail/component-mapping.h,osl/detail/component-mapping.h))
diff --git a/sal/android/android_native_app_glue.c b/sal/android/android_native_app_glue.c
deleted file mode 100644
index 0c2dd5e92f39..000000000000
--- a/sal/android/android_native_app_glue.c
+++ /dev/null
@@ -1,459 +0,0 @@
-/*
- * This file is part of the LibreOffice project.
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * This file incorporates work covered by the following license notice:
- *
- *   Copyright (C) 2010 The Android Open Source Project
- *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
- *      http://www.apache.org/licenses/LICENSE-2.0
- */
-
-#include <jni.h>
-
-#include <errno.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/resource.h>
-
-#include "osl/detail/android-bootstrap.h"
-#include "osl/detail/android_native_app_glue.h"
-#include <android/log.h>
-
-#define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, "lo-bootstrap", __VA_ARGS__))
-
-static void free_saved_state(struct android_app* android_app) {
-    pthread_mutex_lock(&android_app->mutex);
-    if (android_app->savedState != NULL) {
-        free(android_app->savedState);
-        android_app->savedState = NULL;
-        android_app->savedStateSize = 0;
-    }
-    pthread_mutex_unlock(&android_app->mutex);
-}
-
-int8_t android_app_read_cmd(struct android_app* android_app) {
-    int8_t cmd;
-    if (read(android_app->msgread, &cmd, sizeof(cmd)) == sizeof(cmd)) {
-        switch (cmd) {
-            case APP_CMD_SAVE_STATE:
-                free_saved_state(android_app);
-                break;
-        }
-        return cmd;
-    } else {
-        LOGI("No data on command pipe!");
-    }
-    return -1;
-}
-
-static void print_cur_config(struct android_app* android_app) {
-    char lang[2], country[2];
-    AConfiguration_getLanguage(android_app->config, lang);
-    AConfiguration_getCountry(android_app->config, country);
-
-    LOGI("Config: mcc=%d mnc=%d lang=%c%c cnt=%c%c orien=%d touch=%d dens=%d "
-            "keys=%d nav=%d keysHid=%d navHid=%d sdk=%d size=%d long=%d "
-            "modetype=%d modenight=%d",
-            AConfiguration_getMcc(android_app->config),
-            AConfiguration_getMnc(android_app->config),
-            lang[0], lang[1], country[0], country[1],
-            AConfiguration_getOrientation(android_app->config),
-            AConfiguration_getTouchscreen(android_app->config),
-            AConfiguration_getDensity(android_app->config),
-            AConfiguration_getKeyboard(android_app->config),
-            AConfiguration_getNavigation(android_app->config),
-            AConfiguration_getKeysHidden(android_app->config),
-            AConfiguration_getNavHidden(android_app->config),
-            AConfiguration_getSdkVersion(android_app->config),
-            AConfiguration_getScreenSize(android_app->config),
-            AConfiguration_getScreenLong(android_app->config),
-            AConfiguration_getUiModeType(android_app->config),
-            AConfiguration_getUiModeNight(android_app->config));
-}
-
-void android_app_pre_exec_cmd(struct android_app* android_app, int8_t cmd) {
-    switch (cmd) {
-        case APP_CMD_INPUT_CHANGED:
-            LOGI("APP_CMD_INPUT_CHANGED\n");
-            pthread_mutex_lock(&android_app->mutex);
-            if (android_app->inputQueue != NULL) {
-                AInputQueue_detachLooper(android_app->inputQueue);
-            }
-            android_app->inputQueue = android_app->pendingInputQueue;
-            if (android_app->inputQueue != NULL) {
-                LOGI("Attaching input queue to looper");
-                AInputQueue_attachLooper(android_app->inputQueue,
-                        android_app->looper, LOOPER_ID_INPUT, NULL,
-                        &android_app->inputPollSource);
-            }
-            pthread_cond_broadcast(&android_app->cond);
-            pthread_mutex_unlock(&android_app->mutex);
-            break;
-
-        case APP_CMD_INIT_WINDOW:
-            LOGI("APP_CMD_INIT_WINDOW\n");
-            pthread_mutex_lock(&android_app->mutex);
-            android_app->window = android_app->pendingWindow;
-            pthread_cond_broadcast(&android_app->cond);
-            pthread_mutex_unlock(&android_app->mutex);
-            break;
-
-        case APP_CMD_TERM_WINDOW:
-            LOGI("APP_CMD_TERM_WINDOW\n");
-            pthread_cond_broadcast(&android_app->cond);
-            break;
-
-        case APP_CMD_RESUME:
-        case APP_CMD_START:
-        case APP_CMD_PAUSE:
-        case APP_CMD_STOP:
-            LOGI("activityState=%d\n", cmd);
-            pthread_mutex_lock(&android_app->mutex);
-            android_app->activityState = cmd;
-            pthread_cond_broadcast(&android_app->cond);
-            pthread_mutex_unlock(&android_app->mutex);
-            break;
-
-        case APP_CMD_CONFIG_CHANGED:
-            LOGI("APP_CMD_CONFIG_CHANGED\n");
-            AConfiguration_fromAssetManager(android_app->config,
-                    android_app->activity->assetManager);
-            print_cur_config(android_app);
-            break;
-
-        case APP_CMD_DESTROY:
-            LOGI("APP_CMD_DESTROY\n");
-            android_app->destroyRequested = 1;
-            break;
-    }
-}
-
-void android_app_post_exec_cmd(struct android_app* android_app, int8_t cmd) {
-    switch (cmd) {
-        case APP_CMD_TERM_WINDOW:
-            LOGI("APP_CMD_TERM_WINDOW\n");
-            pthread_mutex_lock(&android_app->mutex);
-            android_app->window = NULL;
-            pthread_cond_broadcast(&android_app->cond);
-            pthread_mutex_unlock(&android_app->mutex);
-            break;
-        case APP_CMD_WINDOW_REDRAW_NEEDED:
-            LOGI("APP_CMD_WINDOW_REDRAW_NEEDED - post\n");
-            pthread_mutex_lock(&android_app->mutex);
-            pthread_cond_broadcast(&android_app->cond);
-            pthread_mutex_unlock(&android_app->mutex);
-	    break;
-
-        case APP_CMD_SAVE_STATE:
-            LOGI("APP_CMD_SAVE_STATE\n");
-            pthread_mutex_lock(&android_app->mutex);
-            android_app->stateSaved = 1;
-            pthread_cond_broadcast(&android_app->cond);
-            pthread_mutex_unlock(&android_app->mutex);
-            break;
-
-        case APP_CMD_RESUME:
-            free_saved_state(android_app);
-            break;
-    }
-}
-
-void app_dummy() {
-
-}
-
-static void android_app_destroy(struct android_app* android_app) {
-    LOGI("android_app_destroy!");
-    free_saved_state(android_app);
-    pthread_mutex_lock(&android_app->mutex);
-    if (android_app->inputQueue != NULL) {
-        AInputQueue_detachLooper(android_app->inputQueue);
-    }
-    AConfiguration_delete(android_app->config);
-    android_app->destroyed = 1;
-    pthread_cond_broadcast(&android_app->cond);
-    pthread_mutex_unlock(&android_app->mutex);
-    // Can't touch android_app object after this.
-}
-
-static void process_input(struct android_app* app, struct android_poll_source* source) {
-    AInputEvent* event = NULL;
-    (void) source;
-    if (AInputQueue_getEvent(app->inputQueue, &event) >= 0) {
-        LOGI("New input event: type=%d\n", AInputEvent_getType(event));
-        if (AInputQueue_preDispatchEvent(app->inputQueue, event)) {
-            return;
-        }
-        int32_t handled = 0;
-        if (app->onInputEvent != NULL) handled = app->onInputEvent(app, event);
-        AInputQueue_finishEvent(app->inputQueue, event, handled);
-    } else {
-        LOGI("Failure reading next input event: %s\n", strerror(errno));
-    }
-}
-
-static void process_cmd(struct android_app* app, struct android_poll_source* source) {
-    int8_t cmd = android_app_read_cmd(app);
-    (void) source;
-    android_app_pre_exec_cmd(app, cmd);
-    if (app->onAppCmd != NULL) app->onAppCmd(app, cmd);
-    android_app_post_exec_cmd(app, cmd);
-}
-
-static void* android_app_entry(void* param) {
-    struct android_app* android_app = (struct android_app*)param;
-
-    android_app->config = AConfiguration_new();
-    AConfiguration_fromAssetManager(android_app->config, android_app->activity->assetManager);
-
-    print_cur_config(android_app);
-
-    android_app->cmdPollSource.id = LOOPER_ID_MAIN;
-    android_app->cmdPollSource.app = android_app;
-    android_app->cmdPollSource.process = process_cmd;
-    android_app->inputPollSource.id = LOOPER_ID_INPUT;
-    android_app->inputPollSource.app = android_app;
-    android_app->inputPollSource.process = process_input;
-
-    ALooper* looper = ALooper_prepare(ALOOPER_PREPARE_ALLOW_NON_CALLBACKS);
-    ALooper_addFd(looper, android_app->msgread, LOOPER_ID_MAIN, ALOOPER_EVENT_INPUT, NULL,
-            &android_app->cmdPollSource);
-    android_app->looper = looper;
-
-    pthread_mutex_lock(&android_app->mutex);
-    android_app->running = 1;
-    pthread_cond_broadcast(&android_app->cond);
-    pthread_mutex_unlock(&android_app->mutex);
-
-    android_main(android_app);
-
-    android_app_destroy(android_app);
-    return NULL;
-}
-
-// --------------------------------------------------------------------
-// Native activity interaction (called from main thread)
-// --------------------------------------------------------------------
-
-static struct android_app* android_app_create(ANativeActivity* activity,
-        void* savedState, size_t savedStateSize) {
-    struct android_app* android_app = (struct android_app*)malloc(sizeof(struct android_app));
-    memset(android_app, 0, sizeof(struct android_app));
-    android_app->activity = activity;
-
-    pthread_mutex_init(&android_app->mutex, NULL);
-    pthread_cond_init(&android_app->cond, NULL);
-
-    if (savedState != NULL) {
-        android_app->savedState = malloc(savedStateSize);
-        android_app->savedStateSize = savedStateSize;
-        memcpy(android_app->savedState, savedState, savedStateSize);
-    }
-
-    int msgpipe[2];
-    if (pipe(msgpipe)) {
-        LOGI("could not create pipe: %s", strerror(errno));
-    }
-    android_app->msgread = msgpipe[0];
-    android_app->msgwrite = msgpipe[1];
-
-    pthread_attr_t attr;
-    pthread_attr_init(&attr);
-    pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
-    pthread_create(&android_app->thread, &attr, android_app_entry, android_app);
-
-    // Wait for thread to start.
-    pthread_mutex_lock(&android_app->mutex);
-    while (!android_app->running) {
-        pthread_cond_wait(&android_app->cond, &android_app->mutex);
-    }
-    pthread_mutex_unlock(&android_app->mutex);
-
-    return android_app;
-}
-
-static void android_app_write_cmd(struct android_app* android_app, int8_t cmd) {
-    if (write(android_app->msgwrite, &cmd, sizeof(cmd)) != sizeof(cmd)) {
-        LOGI("Failure writing android_app cmd: %s\n", strerror(errno));
-    }
-}
-
-static void android_app_set_input(struct android_app* android_app, AInputQueue* inputQueue) {
-    pthread_mutex_lock(&android_app->mutex);
-    android_app->pendingInputQueue = inputQueue;
-    android_app_write_cmd(android_app, APP_CMD_INPUT_CHANGED);
-    while (android_app->inputQueue != android_app->pendingInputQueue) {
-        pthread_cond_wait(&android_app->cond, &android_app->mutex);
-    }
-    pthread_mutex_unlock(&android_app->mutex);
-}
-
-static void android_app_set_window(struct android_app* android_app, ANativeWindow* window) {
-    pthread_mutex_lock(&android_app->mutex);
-    if (android_app->pendingWindow != NULL) {
-        android_app_write_cmd(android_app, APP_CMD_TERM_WINDOW);
-    }
-    android_app->pendingWindow = window;
-    if (window != NULL) {
-        android_app_write_cmd(android_app, APP_CMD_INIT_WINDOW);
-    }
-    while (android_app->window != android_app->pendingWindow) {
-        pthread_cond_wait(&android_app->cond, &android_app->mutex);
-    }
-    pthread_mutex_unlock(&android_app->mutex);
-}
-
-static void android_app_window_redraw_needed(struct android_app* android_app, ANativeWindow* window) {
-    pthread_mutex_lock(&android_app->mutex);
-    if (window != NULL) {
-        android_app_write_cmd(android_app, APP_CMD_WINDOW_REDRAW_NEEDED);
-    }
-    while (android_app->window != android_app->pendingWindow) {
-        pthread_cond_wait(&android_app->cond, &android_app->mutex);
-    }
-    pthread_mutex_unlock(&android_app->mutex);
-}
-
-static void android_app_set_activity_state(struct android_app* android_app, int8_t cmd) {
-    pthread_mutex_lock(&android_app->mutex);
-    android_app_write_cmd(android_app, cmd);
-    while (android_app->activityState != cmd) {
-        pthread_cond_wait(&android_app->cond, &android_app->mutex);
-    }
-    pthread_mutex_unlock(&android_app->mutex);
-}
-
-static void android_app_free(struct android_app* android_app) {
-    pthread_mutex_lock(&android_app->mutex);
-    android_app_write_cmd(android_app, APP_CMD_DESTROY);
-    while (!android_app->destroyed) {
-        pthread_cond_wait(&android_app->cond, &android_app->mutex);
-    }
-    pthread_mutex_unlock(&android_app->mutex);
-
-    close(android_app->msgread);
-    close(android_app->msgwrite);
-    pthread_cond_destroy(&android_app->cond);
-    pthread_mutex_destroy(&android_app->mutex);
-    free(android_app);
-}
-
-static void onDestroy(ANativeActivity* activity) {
-    LOGI("Destroy: %p\n", activity);
-    android_app_free((struct android_app*)activity->instance);
-}
-
-static void onStart(ANativeActivity* activity) {
-    LOGI("Start: %p\n", activity);
-    android_app_set_activity_state((struct android_app*)activity->instance, APP_CMD_START);
-}
-
-static void onResume(ANativeActivity* activity) {
-    LOGI("Resume: %p\n", activity);
-    android_app_set_activity_state((struct android_app*)activity->instance, APP_CMD_RESUME);
-}
-
-static void* onSaveInstanceState(ANativeActivity* activity, size_t* outLen) {
-    struct android_app* android_app = (struct android_app*)activity->instance;
-    void* savedState = NULL;
-
-    LOGI("SaveInstanceState: %p\n", activity);
-    pthread_mutex_lock(&android_app->mutex);
-    android_app->stateSaved = 0;
-    android_app_write_cmd(android_app, APP_CMD_SAVE_STATE);
-    while (!android_app->stateSaved) {
-        pthread_cond_wait(&android_app->cond, &android_app->mutex);
-    }
-
-    if (android_app->savedState != NULL) {
-        savedState = android_app->savedState;
-        *outLen = android_app->savedStateSize;
-        android_app->savedState = NULL;
-        android_app->savedStateSize = 0;
-    }
-
-    pthread_mutex_unlock(&android_app->mutex);
-
-    return savedState;
-}
-
-static void onPause(ANativeActivity* activity) {
-    LOGI("Pause: %p\n", activity);
-    android_app_set_activity_state((struct android_app*)activity->instance, APP_CMD_PAUSE);
-}
-
-static void onStop(ANativeActivity* activity) {
-    LOGI("Stop: %p\n", activity);
-    android_app_set_activity_state((struct android_app*)activity->instance, APP_CMD_STOP);
-}
-
-static void onConfigurationChanged(ANativeActivity* activity) {
-    struct android_app* android_app = (struct android_app*)activity->instance;
-    LOGI("ConfigurationChanged: %p\n", activity);
-    android_app_write_cmd(android_app, APP_CMD_CONFIG_CHANGED);
-}
-
-static void onLowMemory(ANativeActivity* activity) {
-    struct android_app* android_app = (struct android_app*)activity->instance;
-    LOGI("LowMemory: %p\n", activity);
-    android_app_write_cmd(android_app, APP_CMD_LOW_MEMORY);
-}
-
-static void onWindowFocusChanged(ANativeActivity* activity, int focused) {
-    LOGI("WindowFocusChanged: %p -- %d\n", activity, focused);
-    android_app_write_cmd((struct android_app*)activity->instance,
-            focused ? APP_CMD_GAINED_FOCUS : APP_CMD_LOST_FOCUS);
-}
-
-static void onNativeWindowCreated(ANativeActivity* activity, ANativeWindow* window) {
-    LOGI("NativeWindowCreated: %p -- %p\n", activity, window);
-    android_app_set_window((struct android_app*)activity->instance, window);
-}
-
-static void onNativeWindowDestroyed(ANativeActivity* activity, ANativeWindow* window) {
-    LOGI("NativeWindowDestroyed: %p -- %p\n", activity, window);
-    android_app_set_window((struct android_app*)activity->instance, NULL);
-}
-
-static void onNativeWindowRedrawNeeded(ANativeActivity* activity, ANativeWindow* window) {
-    LOGI("onNativeWindowRedrawNeeded: %p -- %p\n", activity, window);
-    android_app_window_redraw_needed((struct android_app*)activity->instance, window);
-}
-
-static void onInputQueueCreated(ANativeActivity* activity, AInputQueue* queue) {
-    LOGI("InputQueueCreated: %p -- %p\n", activity, queue);
-    android_app_set_input((struct android_app*)activity->instance, queue);
-}
-
-static void onInputQueueDestroyed(ANativeActivity* activity, AInputQueue* queue) {
-    LOGI("InputQueueDestroyed: %p -- %p\n", activity, queue);
-    android_app_set_input((struct android_app*)activity->instance, NULL);
-}
-
-__attribute__ ((visibility("default"))) void ANativeActivity_onCreate(ANativeActivity* activity,
-        void* savedState, size_t savedStateSize) {
-    LOGI("Creating: %p\n", activity);
-    activity->callbacks->onDestroy = onDestroy;
-    activity->callbacks->onStart = onStart;
-    activity->callbacks->onResume = onResume;
-    activity->callbacks->onSaveInstanceState = onSaveInstanceState;
-    activity->callbacks->onPause = onPause;
-    activity->callbacks->onStop = onStop;
-    activity->callbacks->onConfigurationChanged = onConfigurationChanged;
-    activity->callbacks->onLowMemory = onLowMemory;
-    activity->callbacks->onWindowFocusChanged = onWindowFocusChanged;
-    activity->callbacks->onNativeWindowCreated = onNativeWindowCreated;
-    activity->callbacks->onNativeWindowDestroyed = onNativeWindowDestroyed;
-    activity->callbacks->onNativeWindowRedrawNeeded = onNativeWindowRedrawNeeded;
-    activity->callbacks->onInputQueueCreated = onInputQueueCreated;
-    activity->callbacks->onInputQueueDestroyed = onInputQueueDestroyed;
-
-    activity->instance = android_app_create(activity, savedState, savedStateSize);
-}
diff --git a/sal/android/lo-bootstrap.c b/sal/android/lo-bootstrap.c
index 66057482e61e..b03a60985b15 100644
--- a/sal/android/lo-bootstrap.c
+++ b/sal/android/lo-bootstrap.c
@@ -30,19 +30,22 @@
  * instead of those above.
  */
 
-#include <string.h>
-#include <stdlib.h>
+#include <errno.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include <sys/stat.h>
 #include <sys/time.h>
+#include <time.h>
 
-#include <unistd.h>
-#include <fcntl.h>
 #include <dlfcn.h>
+#include <fcntl.h>
+#include <pthread.h>
 #include <sys/mman.h>
+#include <unistd.h>
 
-#include <zlib.h>
 #include <jni.h>
+#include <zlib.h>
 
 #include <android/log.h>
 
@@ -50,12 +53,6 @@
 
 #include "osl/detail/android-bootstrap.h"
 
-#pragma GCC diagnostic ignored "-Wdeclaration-after-statement"
-
-#include "android_native_app_glue.c"
-
-#pragma GCC diagnostic warning "-Wdeclaration-after-statement"
-
 #undef LOGI
 #undef LOGW
 
@@ -72,15 +69,6 @@ struct engine {
     int dummy;
 };
 
-/* These vars are valid / used only when this library is used from
- *  NativeActivity-based apps.
- */
-static struct android_app *app;
-static int (*lo_main)(int, const char **);
-static int lo_main_argc;
-static const char **lo_main_argv;
-static int sleep_time = 0;
-
 /* These are valid / used in all apps. */
 static const char *data_dir;
 static const char *cache_dir;
@@ -278,26 +266,6 @@ setup_assets_tree(void)
     return 1;
 }
 
-static void
-engine_handle_cmd(struct android_app* state,
-                  int32_t cmd)
-{
-    (void) state;
-
-    switch (cmd) {
-    case APP_CMD_SAVE_STATE:
-        break;
-    case APP_CMD_INIT_WINDOW:
-        break;
-    case APP_CMD_TERM_WINDOW:
-        break;
-    case APP_CMD_GAINED_FOCUS:
-        break;
-    case APP_CMD_LOST_FOCUS:
-        break;
-    }
-}
-
 /* The lo-native-code shared library is always loaded from Java, so this is
  * always called by JNI first.
  */
@@ -404,7 +372,6 @@ get_jni_string_array(JNIEnv *env,
         const char *s = (*env)->GetStringUTFChars(env, (*env)->GetObjectArrayElement(env, strv, i), NULL);
         (*argv)[i] = strdup(s);
         (*env)->ReleaseStringUTFChars(env, (*env)->GetObjectArrayElement(env, strv, i), s);
-        /* LOGI("argv[%d] = %s", i, lo_main_argv[i]); */
     }
     (*argv)[*argc] = NULL;
 
@@ -412,26 +379,6 @@ get_jni_string_array(JNIEnv *env,
 }
 
 
-// public static native boolean setup(Object lo_main_argument,
-//                                    int lo_main_delay);
-
-__attribute__ ((visibility("default")))
-jboolean
-Java_org_libreoffice_android_Bootstrap_setup__Ljava_lang_Object_2I(JNIEnv* env,
-                                                                    jobject clazz,
-                                                                    jobject lo_main_argument,
-                                                                    jint lo_main_delay)
-{
-    (void) clazz;
-
-    if (!get_jni_string_array(env, "setup: lo_main_argument", lo_main_argument, &lo_main_argc, &lo_main_argv))
-        return JNI_FALSE;
-
-    sleep_time = lo_main_delay;
-
-    return JNI_TRUE;
-}
-
 // public static native int getpid();
 
 __attribute__ ((visibility("default")))
@@ -1303,59 +1250,4 @@ lo_get_javavm(void)
     return the_java_vm;
 }
 
-__attribute__ ((visibility("default")))
-struct android_app *
-lo_get_app(void)
-{
-    return app;
-}
-
-/* Note that android_main() is used only in NativeActivity-based apps.  Only
- * the android/qa/sc unit test app is such, and it is unclear whether there is
- * any reason to continue maintaining that buildable.
- */
-__attribute__ ((visibility("default")))
-void
-android_main(struct android_app* state)
-{
-    jint nRet;
-    JNIEnv *pEnv = NULL;
-    struct engine engine;
-    Dl_info lo_main_info;
-    JavaVMAttachArgs aArgs = {
-        JNI_VERSION_1_2,
-        "LibreOfficeThread",
-        NULL
-    };
-
-    fprintf (stderr, "android_main in thread: %d\n", (int)pthread_self());
-
-    if (sleep_time != 0) {
-        LOGI("android_main: Sleeping for %d seconds, start ndk-gdb NOW if that is your intention", sleep_time);
-        sleep(sleep_time);
-    }
-
-    nRet = (*(*state->activity->vm)->AttachCurrentThreadAsDaemon)(state->activity->vm, &pEnv, &aArgs);
-    fprintf (stderr, "attach thread returned %d %p\n", nRet, pEnv);
-
-    app = state;
-
-    memset(&engine, 0, sizeof(engine));
-    state->userData = &engine;
-    state->onAppCmd = engine_handle_cmd;
-
-    /* Look up lo_main() dynamically even if it is in the same .so as this code,
-     * but that is only in the case for code built to be used in a NativeActivity-based app.
-     */
-    lo_main = dlsym(RTLD_DEFAULT, "lo_main");
-
-    if (dladdr(lo_main, &lo_main_info) != 0) {
-        lo_main_argv[0] = lo_main_info.dli_fname;
-    }
-
-    lo_main(lo_main_argc, lo_main_argv);
-    nRet = (*(*state->activity->vm)->DetachCurrentThread)(state->activity->vm);
-    fprintf (stderr, "exit android_main\n");
-}
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sal/inc/osl/detail/android-bootstrap.h b/sal/inc/osl/detail/android-bootstrap.h
index 333d14b12550..56c7c3d732ea 100644
--- a/sal/inc/osl/detail/android-bootstrap.h
+++ b/sal/inc/osl/detail/android-bootstrap.h
@@ -60,8 +60,6 @@ int lo_dlcall_argc_argv(void *function,
 
 JavaVM *lo_get_javavm(void);
 
-struct android_app *lo_get_app(void);
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/sal/inc/osl/detail/android_native_app_glue.h b/sal/inc/osl/detail/android_native_app_glue.h
deleted file mode 100644
index 862ca9e990f8..000000000000
--- a/sal/inc/osl/detail/android_native_app_glue.h
+++ /dev/null
@@ -1,351 +0,0 @@
-/*
- * This file is part of the LibreOffice project.
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- * This file incorporates work covered by the following license notice:
- *
- *   Copyright (C) 2010 The Android Open Source Project
- *
- *   Licensed under the Apache License, Version 2.0 (the "License");
- *   you may not use this file except in compliance with the License.
- *   You may obtain a copy of the License at
- *      http://www.apache.org/licenses/LICENSE-2.0
- */
-
-#ifndef _ANDROID_NATIVE_APP_GLUE_H
-#define _ANDROID_NATIVE_APP_GLUE_H
-#if defined(ANDROID)
-
-#include <poll.h>
-#include <pthread.h>
-#include <sched.h>
-
-#include <android/configuration.h>
-#include <android/looper.h>
-#include <android/native_activity.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * The native activity interface provided by <android/native_activity.h>
- * is based on a set of application-provided callbacks that will be called
- * by the Activity's main thread when certain events occur.
- *
- * This means that each one of this callbacks _should_ _not_ block, or they
- * risk having the system force-close the application. This programming
- * model is direct, lightweight, but constraining.
- *
- * The 'threaded_native_app' static library is used to provide a different
- * execution model where the application can implement its own main event
- * loop in a different thread instead. Here's how it works:
- *
- * 1/ The application must provide a function named "android_main()" that
- *    will be called when the activity is created, in a new thread that is
- *    distinct from the activity's main thread.
- *
- * 2/ android_main() receives a pointer to a valid "android_app" structure
- *    that contains references to other important objects, e.g. the
- *    ANativeActivity obejct instance the application is running in.
- *
- * 3/ the "android_app" object holds an ALooper instance that already
- *    listens to two important things:
- *
- *      - activity lifecycle events (e.g. "pause", "resume"). See APP_CMD_XXX
- *        declarations below.
- *
- *      - input events coming from the AInputQueue attached to the activity.
- *
- *    Each of these correspond to an ALooper identifier returned by
- *    ALooper_pollOnce with values of LOOPER_ID_MAIN and LOOPER_ID_INPUT,
- *    respectively.
- *
- *    Your application can use the same ALooper to listen to additional
- *    file-descriptors.  They can either be callback based, or with return
- *    identifiers starting with LOOPER_ID_USER.
- *
- * 4/ Whenever you receive a LOOPER_ID_MAIN or LOOPER_ID_INPUT event,
- *    the returned data will point to an android_poll_source structure.  You
- *    can call the process() function on it, and fill in android_app->onAppCmd
- *    and android_app->onInputEvent to be called for your own processing
- *    of the event.
- *
- *    Alternatively, you can call the low-level functions to read and process
- *    the data directly...  look at the process_cmd() and process_input()
- *    implementations in the glue to see how to do this.
- *
- * See the sample named "native-activity" that comes with the NDK with a
- * full usage example.  Also look at the JavaDoc of NativeActivity.
- */
-
-struct android_app;
-
-/**
- * Data associated with an ALooper fd that will be returned as the "outData"
- * when that source has data ready.
- */
-struct android_poll_source {
-    // The identifier of this source.  May be LOOPER_ID_MAIN or
-    // LOOPER_ID_INPUT.
-    int32_t id;
-
-    // The android_app this ident is associated with.
-    struct android_app* app;
-
-    // Function to call to perform the standard processing of data from
-    // this source.
-    void (*process)(struct android_app* app, struct android_poll_source* source);
-};
-
-/**
- * This is the interface for the standard glue code of a threaded
- * application.  In this model, the application's code is running
- * in its own thread separate from the main thread of the process.
- * It is not required that this thread be associated with the Java
- * VM, although it will need to be in order to make JNI calls any
- * Java objects.
- */
-struct android_app {
-    // The application can place a pointer to its own state object
-    // here if it likes.
-    void* userData;
-
-    // Fill this in with the function to process main app commands (APP_CMD_*)
-    void (*onAppCmd)(struct android_app* app, int32_t cmd);
-
-    // Fill this in with the function to process input events.  At this point
-    // the event has already been pre-dispatched, and it will be finished upon
-    // return.  Return 1 if you have handled the event, 0 for any default
-    // dispatching.
-    int32_t (*onInputEvent)(struct android_app* app, AInputEvent* event);
-
-    // The ANativeActivity object instance that this app is running in.
-    ANativeActivity* activity;
-
-    // The current configuration the app is running in.
-    AConfiguration* config;
-
-    // This is the last instance's saved state, as provided at creation time.
-    // It is NULL if there was no state.  You can use this as you need; the
-    // memory will remain around until you call android_app_exec_cmd() for
-    // APP_CMD_RESUME, at which point it will be freed and savedState set to NULL.
-    // These variables should only be changed when processing a APP_CMD_SAVE_STATE,
-    // at which point they will be initialized to NULL and you can malloc your
-    // state and place the information here.  In that case the memory will be
-    // freed for you later.
-    void* savedState;
-    size_t savedStateSize;
-
-    // The ALooper associated with the app's thread.
-    ALooper* looper;
-
-    // When non-NULL, this is the input queue from which the app will
-    // receive user input events.
-    AInputQueue* inputQueue;
-
-    // When non-NULL, this is the window surface that the app can draw in.
-    ANativeWindow* window;
-
-    // Current content rectangle of the window; this is the area where the
-    // window's content should be placed to be seen by the user.
-    ARect contentRect;
-
-    // Current state of the app's activity.  May be either APP_CMD_START,
-    // APP_CMD_RESUME, APP_CMD_PAUSE, or APP_CMD_STOP; see below.
-    int activityState;
-
-    // This is non-zero when the application's NativeActivity is being
-    // destroyed and waiting for the app thread to complete.
-    int destroyRequested;
-
-    // -------------------------------------------------
-    // Below are "private" implementation of the glue code.
-
-    pthread_mutex_t mutex;
-    pthread_cond_t cond;
-
-    int msgread;
-    int msgwrite;
-
-    pthread_t thread;
-
-    struct android_poll_source cmdPollSource;
-    struct android_poll_source inputPollSource;
-
-    int running;
-    int stateSaved;
-    int destroyed;
-    int redrawNeeded;
-    AInputQueue* pendingInputQueue;
-    ANativeWindow* pendingWindow;
-    ARect pendingContentRect;
-};
-
-enum {
-    /**
-     * Looper data ID of commands coming from the app's main thread, which
-     * is returned as an identifier from ALooper_pollOnce().  The data for this
-     * identifier is a pointer to an android_poll_source structure.
-     * These can be retrieved and processed with android_app_read_cmd()
-     * and android_app_exec_cmd().
-     */
-    LOOPER_ID_MAIN = 1,
-
-    /**
-     * Looper data ID of events coming from the AInputQueue of the
-     * application's window, which is returned as an identifier from
-     * ALooper_pollOnce().  The data for this identifier is a pointer to an
-     * android_poll_source structure.  These can be read via the inputQueue
-     * object of android_app.
-     */
-    LOOPER_ID_INPUT = 2,
-
-    /**
-     * Start of user-defined ALooper identifiers.
-     */
-    LOOPER_ID_USER = 3,
-};
-
-enum {
-    /**
-     * Command from main thread: the AInputQueue has changed.  Upon processing
-     * this command, android_app->inputQueue will be updated to the new queue
-     * (or NULL).
-     */
-    APP_CMD_INPUT_CHANGED,
-
-    /**
-     * Command from main thread: a new ANativeWindow is ready for use.  Upon
-     * receiving this command, android_app->window will contain the new window
-     * surface.
-     */
-    APP_CMD_INIT_WINDOW,
-
-    /**
-     * Command from main thread: the existing ANativeWindow needs to be
-     * terminated.  Upon receiving this command, android_app->window still
-     * contains the existing window; after calling android_app_exec_cmd
-     * it will be set to NULL.
-     */
-    APP_CMD_TERM_WINDOW,
-
-    /**
-     * Command from main thread: the current ANativeWindow has been resized.
-     * Please redraw with its new size.
-     */
-    APP_CMD_WINDOW_RESIZED,
-
-    /**
-     * Command from main thread: the system needs that the current ANativeWindow
-     * be redrawn.  You should redraw the window before handing this to
-     * android_app_exec_cmd() in order to avoid transient drawing glitches.
-     */
-    APP_CMD_WINDOW_REDRAW_NEEDED,
-
-    /**
-     * Command from main thread: the content area of the window has changed,
-     * such as from the soft input window being shown or hidden.  You can
-     * find the new content rect in android_app::contentRect.
-     */
-    APP_CMD_CONTENT_RECT_CHANGED,
-
-    /**
-     * Command from main thread: the app's activity window has gained
-     * input focus.
-     */
-    APP_CMD_GAINED_FOCUS,
-
-    /**
-     * Command from main thread: the app's activity window has lost
-     * input focus.
-     */
-    APP_CMD_LOST_FOCUS,
-
-    /**
-     * Command from main thread: the current device configuration has changed.
-     */
-    APP_CMD_CONFIG_CHANGED,
-
-    /**
-     * Command from main thread: the system is running low on memory.
-     * Try to reduce your memory use.
-     */
-    APP_CMD_LOW_MEMORY,
-
-    /**
-     * Command from main thread: the app's activity has been started.
-     */
-    APP_CMD_START,
-
-    /**
-     * Command from main thread: the app's activity has been resumed.
-     */
-    APP_CMD_RESUME,
-
-    /**
-     * Command from main thread: the app should generate a new saved state
-     * for itself, to restore from later if needed.  If you have saved state,
-     * allocate it with malloc and place it in android_app.savedState with
-     * the size in android_app.savedStateSize.  The will be freed for you
-     * later.
-     */
-    APP_CMD_SAVE_STATE,
-
-    /**
-     * Command from main thread: the app's activity has been paused.
-     */
-    APP_CMD_PAUSE,
-
-    /**
-     * Command from main thread: the app's activity has been stopped.
-     */
-    APP_CMD_STOP,
-
-    /**
-     * Command from main thread: the app's activity is being destroyed,
-     * and waiting for the app thread to clean up and exit before proceeding.
-     */
-    APP_CMD_DESTROY,
-};
-
-/**
- * Call when ALooper_pollAll() returns LOOPER_ID_MAIN, reading the next
- * app command message.
- */
-int8_t android_app_read_cmd(struct android_app* android_app);
-
-/**
- * Call with the command returned by android_app_read_cmd() to do the
- * initial pre-processing of the given command.  You can perform your own
- * actions for the command after calling this function.
- */
-void android_app_pre_exec_cmd(struct android_app* android_app, int8_t cmd);
-
-/**
- * Call with the command returned by android_app_read_cmd() to do the
- * final post-processing of the given command.  You must have done your own
- * actions for the command before calling this function.
- */
-void android_app_post_exec_cmd(struct android_app* android_app, int8_t cmd);
-
-/**
- * Dummy function you can call to ensure glue code isn't stripped.
- */
-void app_dummy();
-
-/**
- * This is the function that application code must implement, representing
- * the main entry to the app.
- */
-extern void android_main(struct android_app* app);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif // ANDROID
-#endif /* _ANDROID_NATIVE_APP_GLUE_H */
diff --git a/sal/inc/sal/main.h b/sal/inc/sal/main.h
index 7cdc9bc62c0c..8648e38752ab 100644
--- a/sal/inc/sal/main.h
+++ b/sal/inc/sal/main.h
@@ -38,25 +38,7 @@ SAL_DLLPUBLIC void SAL_CALL sal_detail_deinitialize();
 
 #if defined IOS || defined ANDROID
 
-#ifdef __cplusplus
-extern "C" SAL_DLLPUBLIC_EXPORT void lo_main(int argc, char **argv);
-#endif
-
-#define SAL_MAIN_WITH_ARGS_IMPL \
-SAL_DLLPUBLIC_EXPORT void lo_main(int argc, char **argv) \
-{ \
-    sal_detail_initialize(argc, argv); \
-    sal_main_with_args(argc, argv); \
-    sal_detail_deinitialize(); \
-}
-
-#define SAL_MAIN_IMPL \
-SAL_DLLPUBLIC_EXPORT void lo_main(int argc, char **argv) \
-{ \
-    sal_detail_initialize(argc, argv); \
-    sal_main(); \
-    sal_detail_deinitialize(); \
-}
+#error No code that includes this should be built for iOS or Android
 
 #else
 
diff --git a/sal/osl/unx/process_impl.cxx b/sal/osl/unx/process_impl.cxx
index 4a10af514557..723d10bcd436 100644
--- a/sal/osl/unx/process_impl.cxx
+++ b/sal/osl/unx/process_impl.cxx
@@ -104,26 +104,10 @@ oslProcessError SAL_CALL osl_bootstrap_getExecutableFile_Impl (
 {
     oslProcessError result = osl_Process_E_NotFound;
 
-#if defined(ANDROID) && !defined(DISABLE_DYNLOADING)
-    /* On Android we in theory want the address of the "lo_main()"
-     * function, as that is what corresponds to "main()" in
-     * LibreOffice programs on normal desktop OSes.
-     *
-     * But that is true only for apps with a "native activity", using
-     * <sal/main.h> and the org.libreoffice.android.Bootstrap
-     * mechanism. For more normal (?) Android apps that just use
-     * LibreOffice libraries (components) where the main program is in
-     * Java, that just use LibreOffice libraries, there is no
-     * lo_main(). (Note that we don't know for sure yet how
-     * complicated it might be to write such Android apps...)
-     *
-     * Maybe best to just pick some function in liblo-bootstrap.so
-     * which also such Java apps *must* load as the very first
-     * LibreOffice native library. We store all LibreOffice native
-     * shared libraries an app uses in the same folder anyway, so it
-     * doesn't really matter.
-     */
-    void * addr = (void *) &lo_dlopen;
+#ifdef ANDROID
+    /* Now with just a single DSO, this one from lo-bootstrap.c is as good as
+     * any */
+    void * addr = dlsym (RTLD_DEFAULT, "JNI_OnLoad");
 #else
     /* Determine address of "main()" function. */
     void * addr = dlsym (RTLD_DEFAULT, "main");