int main() {
crazy_context_t* context = crazy_context_create();
crazy_library_t* library;
// Expect to find the library in the same directory than this executable.
crazy_context_add_search_path_for_address(context, (void*)&main);
crazy_context_set_java_vm(context, kJavaVM, JNI_VERSION_1_2);
// Load libjni_lib.so, this should invoke its JNI_OnLoad() function
// automatically.
setenv(VARNAME, "INIT", 1);
if (!crazy_library_open(&library, kJniLibName, context))
Panic("Could not open library: %s\n", crazy_context_get_error(context));
const char* env = getenv(VARNAME);
if (strcmp(env, "LOADED"))
Panic("JNI_OnLoad() hook was not called! %s is %s\n", VARNAME, env);
crazy_library_close(library);
env = getenv(VARNAME);
if (strcmp(env, "UNLOADED"))
Panic("JNI_OnUnload() hook was not called! %s is %s\n", VARNAME, env);
// Now, change the minimum JNI version to JNI_VERSION_1_6, which should
// prevent loading the library properly, since it only supports 1.2.
crazy_context_set_java_vm(context, kJavaVM, JNI_VERSION_1_6);
setenv(VARNAME, "INIT", 1);
if (crazy_library_open(&library, kJniLibName, context))
Panic("Could load the library with JNI_VERSION_1_6 > JNI_VERSION_1_2.");
// Disable the feature, this shall load the library, but not call the
// JNI_OnLoad() hook.
crazy_context_set_java_vm(context, NULL, 0);
setenv(VARNAME, "INIT", 1);
if (!crazy_library_open(&library, kJniLibName, context))
Panic("Could not load the library without a JavaVM handle !?\n");
env = getenv(VARNAME);
if (strcmp(env, "INIT"))
Panic("JNI_OnLoad() was called, %s is %s (expected INIT)\n", VARNAME, env);
crazy_library_close(library);
env = getenv(VARNAME);
if (strcmp(env, "INIT"))
Panic(
"JNI_OnUnload() was called, %s is %s (expected INIT)\n", VARNAME, env);
crazy_context_destroy(context);
return 0;
}
void ANativeActivity_onCreate(ANativeActivity * app, void * ud, size_t udsize) {
//int main() {
crazy_context_t* context = crazy_context_create();
crazy_library_t* library;
crazy_library_t* library2;
crazy_context_add_search_path_for_address(context,
reinterpret_cast<void*>(&ANativeActivity_onCreate));
LOGI("Loaded boostrap");
// DEBUG
//crazy_context_set_load_address(context, 0x20000000);
if (!crazy_library_open(&library2, "libbass.so", context)) {
LOGE("Could not open library: %s", crazy_context_get_error(context));
exit(1);
// Panic("Could not open library: %s\n", crazy_context_get_error(context));
}
LOGI("Loaded boostrap bass in");
// Load libfoo.so
if (!crazy_library_open(&library, "libutekxp-armeabi.so", context)) {
LOGE("Could not open library: %s", crazy_context_get_error(context));
exit(1);
// Panic("Could not open library: %s\n", crazy_context_get_error(context));
}
LOGI("Loaded boostrap 2");
// Find the "Foo" symbol.
FunctionPtr foo_func;
if (!crazy_library_find_symbol(
library, "ANativeActivity_onCreate", reinterpret_cast<void**>(&foo_func))) {
LOGE("Could not find 'Foo' in libfoo.so");
exit(1);
//Panic("Could not find 'Foo' in libfoo.so\n");
}
LOGI("Loaded boostrap3");
// Call it.
(*foo_func)(app, ud, udsize);
LOGI("Loaded boostrap4");
// Close the library.
/* printf("Closing libfoo.so\n");
crazy_library_close(library);
crazy_context_destroy(context);*/
}
int main() {
String exe_path = GetCurrentExecutableDirectory();
TempDirectory temp_dir_1;
TempDirectory temp_dir_2;
// List of symbols in original libfoo.so and libfoo2.so, respectively.
static const char* const kFooSymbols[] = {"Foo", NULL};
static const char* const kFoo2Symbols[] = {"Foo2", NULL};
// Copy libfoo.so to $TMPDIR1/libfoo.so
CopyFile("libfoo.so", exe_path.c_str(), "libfoo.so", temp_dir_1.path());
// Copy libfoo2.so to $TMPDIR2/libfoo.so
CopyFile("libfoo2.so", exe_path.c_str(), "libfoo.so", temp_dir_2.path());
// Create a new context object.
crazy_context_t* context = crazy_context_create();
crazy_library_t* library;
// Reset search paths to a non-existing directory. Check that the library
// can't be loaded.
setenv("LD_LIBRARY_PATH", "/this-directory-does-not-exist", 1);
crazy_context_reset_search_paths(context);
CheckLibraryCantLoad("libfoo.so", context);
// Add the search path to the current executable, this should load the
// original
// libfoo.so.
crazy_context_add_search_path_for_address(context, (void*)&main);
CheckLibrary("libfoo.so", kFooSymbols, kFoo2Symbols, context);
// Reset search paths to use $TMPDIR2 then $TMPDIR1
setenv("LD_LIBRARY_PATH", temp_dir_1.path(), 1);
crazy_context_reset_search_paths(context);
crazy_context_add_search_path(context, temp_dir_2.path());
// Check that the copy of libfoo2.so is loaded.
CheckLibrary("libfoo.so", kFoo2Symbols, kFooSymbols, context);
// Reset search paths to use only $TMPDIR1
crazy_context_reset_search_paths(context);
// Check that the copy of libfoo.so is loaded.
CheckLibrary("libfoo.so", kFooSymbols, kFoo2Symbols, context);
crazy_context_destroy(context);
return 0;
}
int main(int argc, char** argv) {
const char* library_path = "libfoo.so";
if (argc >= 2)
library_path = argv[1];
{ ScopedTimer null_timer("empty"); }
// Load the library with dlopen().
void* lib;
drop_caches();
{
ScopedTimer timer("dlopen");
lib = dlopen(library_path, RTLD_NOW);
}
if (!lib)
Panic("Could not load library with dlopen(): %s\n", dlerror());
dlclose(lib);
crazy_library_t* library;
crazy_context_t* context = crazy_context_create();
// Ensure the program looks in its own directory too.
crazy_context_add_search_path_for_address(context,
reinterpret_cast<void*>(&main));
// Load the library with the crazy linker.
drop_caches();
{
ScopedTimer timer("crazy_linker");
// Load libfoo.so
if (!crazy_library_open(&library, library_path, context)) {
Panic("Could not open library: %s\n", crazy_context_get_error(context));
}
}
crazy_library_close(library);
// Load the library with the crazy linker. Preload libOpenSLES.so
drop_caches();
void* sles_lib = dlopen("libOpenSLES.so", RTLD_NOW);
{
ScopedTimer timer("crazy_linker (preload libOpenSLES.so)");
// Load libfoo.so
if (!crazy_library_open(&library, library_path, context)) {
Panic("Could not open library: %s\n", crazy_context_get_error(context));
}
}
crazy_library_close(library);
dlclose(sles_lib);
// Load the library with the crazy linker. Preload libOpenSLES.so
{
drop_caches();
void* sys1_lib = dlopen("libandroid.so", RTLD_NOW);
void* sys2_lib = dlopen("libjnigraphics.so", RTLD_NOW);
void* sys3_lib = dlopen("libOpenSLES.so", RTLD_NOW);
{
ScopedTimer timer("crazy_linker (preload 3 system libs)");
// Load libfoo.so
if (!crazy_library_open(&library, library_path, context)) {
Panic("Could not open library: %s\n", crazy_context_get_error(context));
}
}
crazy_library_close(library);
dlclose(sys3_lib);
dlclose(sys2_lib);
dlclose(sys1_lib);
}
// Load the library with the crazy linker. Create a shared RELRO as well.
drop_caches();
{
ScopedTimer timer("crazy_linker (with RELRO)");
// Load libfoo.so
if (!crazy_library_open(&library, library_path, context)) {
Panic("Could not open library: %s\n", crazy_context_get_error(context));
}
if (!crazy_library_enable_relro_sharing(library, context)) {
Panic("Could not create shared RELRO: %s\n",
crazy_context_get_error(context));
}
}
crazy_library_close(library);
printf("OK\n");
return 0;
}
