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monodroid-glue.cc
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monodroid-glue.cc
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#include <array>
#include <cctype>
#include <cerrno>
#include <cstdarg>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <dirent.h>
#include <fcntl.h>
#include <pthread.h>
#include <strings.h>
#include <dlfcn.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <unistd.h>
#include <jni.h>
#include <android/dlext.h>
#include <mono/jit/jit.h>
#include <mono/metadata/appdomain.h>
#include <mono/metadata/assembly.h>
#include <mono/metadata/class.h>
#include <mono/metadata/debug-helpers.h>
#include <mono/metadata/mono-config.h>
#include <mono/metadata/mono-debug.h>
#include <mono/metadata/object.h>
#include <mono/utils/mono-dl-fallback.h>
#include <mono/utils/mono-logger.h>
#include <mono/metadata/mono-private-unstable.h>
#include "mono_android_Runtime.h"
#if defined (DEBUG)
#include <arpa/inet.h>
#include <sys/socket.h>
#include <netinet/in.h>
#endif
#include "logger.hh"
#include "util.hh"
#include "debug.hh"
#include "embedded-assemblies.hh"
#include "monodroid-glue.hh"
#include "monodroid-glue-internal.hh"
#include "globals.hh"
#include "xamarin-app.hh"
#include "timing.hh"
#include "build-info.hh"
#include "monovm-properties.hh"
#include "timing-internal.hh"
#include "runtime-util.hh"
#include "monodroid-state.hh"
#include "pinvoke-override-api.hh"
#include "cpp-util.hh"
#include "strings.hh"
using namespace microsoft::java_interop;
using namespace xamarin::android;
using namespace xamarin::android::internal;
MonoCoreRuntimeProperties MonodroidRuntime::monovm_core_properties = {
.trusted_platform_assemblies = nullptr,
.app_paths = nullptr,
.native_dll_search_directories = nullptr,
.pinvoke_override = &PinvokeOverride::monodroid_pinvoke_override
};
void
MonodroidRuntime::thread_start ([[maybe_unused]] MonoProfiler *prof, [[maybe_unused]] uintptr_t tid)
{
JNIEnv* env;
int r = osBridge.get_jvm ()->AttachCurrentThread (&env, nullptr);
if (r != JNI_OK) {
#if DEBUG
log_fatal (LOG_DEFAULT, "ERROR: Unable to attach current thread to the Java VM!");
Helpers::abort_application ();
#endif
}
}
void
MonodroidRuntime::thread_end ([[maybe_unused]] MonoProfiler *prof, [[maybe_unused]] uintptr_t tid)
{
int r = osBridge.get_jvm ()->DetachCurrentThread ();
if (r != JNI_OK) {
#if DEBUG
/*
log_fatal (LOG_DEFAULT, "ERROR: Unable to detach current thread from the Java VM!");
*/
#endif
}
}
inline void
MonodroidRuntime::log_jit_event (MonoMethod *method, const char *event_name)
{
jit_time.mark_end ();
if (jit_log == nullptr)
return;
char* name = mono_method_full_name (method, 1);
timing_diff diff (jit_time);
fprintf (jit_log, "JIT method %6s: %s elapsed: %lis:%u::%u\n", event_name, name, static_cast<long>(diff.sec), diff.ms, diff.ns);
free (name);
}
void
MonodroidRuntime::jit_begin ([[maybe_unused]] MonoProfiler *prof, MonoMethod *method)
{
monodroidRuntime.log_jit_event (method, "begin");
}
void
MonodroidRuntime::jit_failed ([[maybe_unused]] MonoProfiler *prof, MonoMethod *method)
{
monodroidRuntime.log_jit_event (method, "failed");
}
void
MonodroidRuntime::jit_done ([[maybe_unused]] MonoProfiler *prof, MonoMethod *method, [[maybe_unused]] MonoJitInfo* jinfo)
{
monodroidRuntime.log_jit_event (method, "done");
}
#ifndef RELEASE
MonoAssembly*
MonodroidRuntime::open_from_update_dir (MonoAssemblyName *aname, [[maybe_unused]] char **assemblies_path, [[maybe_unused]] void *user_data)
{
const char *culture = reinterpret_cast<const char*> (mono_assembly_name_get_culture (aname));
const char *name = reinterpret_cast<const char*> (mono_assembly_name_get_name (aname));
size_t culture_len;
if (culture != nullptr)
culture_len = strlen (culture);
else
culture_len = 0;
size_t name_len = strlen (name);
static_local_string<SENSIBLE_PATH_MAX> pname (name_len + culture_len);
if (culture_len > 0) {
pname.append (culture, culture_len);
pname.append ("/");
}
pname.append (name, name_len);
bool is_dll = Util::ends_with (name, SharedConstants::DLL_EXTENSION);
size_t file_name_len = pname.length () + 1;
if (!is_dll)
file_name_len += SharedConstants::DLL_EXTENSION.length ();
MonoAssembly *result = nullptr;
for (const char *override_dir : AndroidSystem::override_dirs) {
if (override_dir == nullptr || !Util::directory_exists (override_dir)) {
continue;
}
size_t override_dir_len = strlen (override_dir);
static_local_string<SENSIBLE_PATH_MAX> fullpath (override_dir_len + file_name_len);
Util::path_combine (fullpath, override_dir, override_dir_len, pname.get (), pname.length ());
if (!is_dll) {
fullpath.append (SharedConstants::DLL_EXTENSION);
}
log_debug (LOG_ASSEMBLY, "open_from_update_dir: trying to open assembly: %s\n", fullpath.get ());
if (Util::file_exists (fullpath.get ())) {
MonoImageOpenStatus status{};
result = mono_assembly_open_full (fullpath.get (), &status, 0);
if (result == nullptr || status != MonoImageOpenStatus::MONO_IMAGE_OK) {
log_warn (LOG_ASSEMBLY, "Failed to load managed assembly '%s'. %s", fullpath.get (), mono_image_strerror (status));
}
} else {
log_warn (LOG_ASSEMBLY, "open_from_update_dir: assembly file DOES NOT EXIST");
}
if (result != nullptr) {
// TODO: register .mdb, .pdb file
break;
}
}
if (result != nullptr && Util::should_log (LOG_ASSEMBLY)) {
log_info_nocheck (LOG_ASSEMBLY, "open_from_update_dir: loaded assembly: %p\n", result);
}
return result;
}
#endif
bool
MonodroidRuntime::should_register_file ([[maybe_unused]] const char *filename)
{
#ifndef RELEASE
if (filename == nullptr) {
return true;
}
size_t filename_len = strlen (filename) + 1; // includes space for path separator
for (const char *odir : AndroidSystem::override_dirs) {
if (odir == nullptr) {
continue;
}
size_t odir_len = strlen (odir);
static_local_string<SENSIBLE_PATH_MAX> p (odir_len + filename_len);
Util::path_combine (p, odir, odir_len, filename, filename_len);
bool exists = Util::file_exists (p.get ());
if (exists) {
return false;
}
}
#endif
return true;
}
inline void
MonodroidRuntime::gather_bundled_assemblies (jstring_array_wrapper &runtimeApks, size_t *out_user_assemblies_count, bool have_split_apks)
{
if (!AndroidSystem::is_embedded_dso_mode_enabled ()) {
*out_user_assemblies_count = embeddedAssemblies.register_from_filesystem<should_register_file> ();
return;
}
int64_t apk_count = static_cast<int64_t>(runtimeApks.get_length ());
size_t prev_num_assemblies = 0;
bool got_split_config_abi_apk = false;
bool got_base_apk = false;
for (int64_t i = 0; i < apk_count; i++) {
jstring_wrapper &apk_file = runtimeApks [static_cast<size_t>(i)];
if (have_split_apks) {
bool scan_apk = false;
// With split configs we need to scan only the abi apk, because both the assembly stores and the runtime
// configuration blob are in `lib/{ARCH}`, which in turn lives in the split config APK
if (!got_split_config_abi_apk && Util::ends_with (apk_file.get_cstr (), SharedConstants::split_config_abi_apk_name)) {
got_split_config_abi_apk = scan_apk = true;
} else if (!application_config.have_assembly_store && !got_base_apk && Util::ends_with (apk_file.get_cstr (), base_apk_name)) {
got_base_apk = scan_apk = true;
}
if (!scan_apk) {
continue;
}
}
size_t cur_num_assemblies = embeddedAssemblies.register_from_apk<should_register_file> (apk_file.get_cstr ());
*out_user_assemblies_count += (cur_num_assemblies - prev_num_assemblies);
prev_num_assemblies = cur_num_assemblies;
if (!embeddedAssemblies.keep_scanning ()) {
break;
}
}
embeddedAssemblies.ensure_valid_assembly_stores ();
}
#if defined (DEBUG)
int
MonodroidRuntime::monodroid_debug_connect (int sock, struct sockaddr_in addr)
{
long flags = fcntl (sock, F_GETFL, nullptr);
flags |= O_NONBLOCK;
fcntl (sock, F_SETFL, flags);
int res = connect (sock, (struct sockaddr *) &addr, sizeof (addr));
if (res < 0) {
if (errno == EINPROGRESS) {
while (true) {
timeval tv;
tv.tv_sec = 2;
tv.tv_usec = 0;
fd_set fds;
FD_ZERO (&fds);
FD_SET (sock, &fds);
res = select (sock + 1, 0, &fds, 0, &tv);
if (res <= 0 && errno != EINTR) return -5;
socklen_t len = sizeof (int);
int val = 0;
if (getsockopt (sock, SOL_SOCKET, SO_ERROR, &val, &len) < 0) return -3;
if (val) return -4;
break;
}
} else {
return -2;
}
}
flags = fcntl (sock, F_GETFL, nullptr);
flags &= (~O_NONBLOCK);
fcntl (sock, F_SETFL, flags);
return 1;
}
int
MonodroidRuntime::monodroid_debug_accept (int sock, struct sockaddr_in addr)
{
ssize_t res = bind (sock, (struct sockaddr *) &addr, sizeof (addr));
if (res < 0)
return -1;
res = listen (sock, 1);
if (res < 0)
return -2;
int accepted = accept (sock, nullptr, nullptr);
if (accepted < 0)
return -3;
constexpr const char handshake_msg [] = "MonoDroid-Handshake\n";
constexpr size_t handshake_length = sizeof (handshake_msg) - 1;
do {
res = send (accepted, handshake_msg, handshake_length, 0);
} while (res == -1 && errno == EINTR);
if (res < 0)
return -4;
return accepted;
}
#endif
inline jint
MonodroidRuntime::Java_JNI_OnLoad (JavaVM *vm, [[maybe_unused]] void *reserved)
{
JNIEnv *env;
AndroidSystem::init_max_gref_count ();
vm->GetEnv ((void**)&env, JNI_VERSION_1_6);
osBridge.initialize_on_onload (vm, env);
return JNI_VERSION_1_6;
}
void
MonodroidRuntime::parse_gdb_options ()
{
dynamic_local_string<PROPERTY_VALUE_BUFFER_LEN> val;
if (!(AndroidSystem::monodroid_get_system_property (SharedConstants::DEBUG_MONO_GDB_PROPERTY, val) > 0))
return;
constexpr std::string_view wait_param { "wait:" };
if (val.starts_with (wait_param)) {
/*
* The form of the property should be: 'wait:<timestamp>', where <timestamp> should be
* the output of date +%s in the android shell.
* If this property is set, wait for a native debugger to attach by spinning in a loop.
* The debugger can break the wait by setting 'monodroid_gdb_wait' to 0.
* If the current time is later than <timestamp> + 10s, the property is ignored.
*/
bool do_wait = true;
long long v = atoll (val.get () + wait_param.length ());
if (v > 100000) {
time_t secs = time (nullptr);
if (v + 10 < secs) {
log_warn (LOG_DEFAULT, "Found stale %s property with value '%s', not waiting.", SharedConstants::DEBUG_MONO_GDB_PROPERTY.data (), val.get ());
do_wait = false;
}
}
wait_for_gdb = do_wait;
}
}
#if defined (DEBUG)
bool
MonodroidRuntime::parse_runtime_args (dynamic_local_string<PROPERTY_VALUE_BUFFER_LEN> &runtime_args, RuntimeOptions *options)
{
if (runtime_args.length () == 0) {
log_warn (LOG_DEFAULT, "runtime args empty");
return true;
}
constexpr std::string_view ARG_DEBUG { "debug" };
constexpr std::string_view ARG_TIMEOUT { "timeout=" };
constexpr std::string_view ARG_SERVER { "server=" };
constexpr std::string_view ARG_LOGLEVEL { "loglevel=" };
bool ret = true;
string_segment token;
while (runtime_args.next_token (',', token)) {
if (token.starts_with (ARG_DEBUG)) {
char *host = nullptr;
int sdb_port = 1000, out_port = -1;
options->debug = true;
if (token.has_at ('=', ARG_DEBUG.length ())) {
constexpr size_t arg_name_length = ARG_DEBUG.length () + 1; // Includes the '='
static_local_string<SMALL_STRING_PARSE_BUFFER_LEN> hostport (token.length () - arg_name_length);
hostport.assign (token.start () + arg_name_length, token.length () - arg_name_length);
string_segment address;
size_t field = 0;
while (field < 3 && hostport.next_token (':', address)) {
switch (field) {
case 0: // host
if (address.empty ()) {
log_error (LOG_DEFAULT, "Invalid --debug argument for the host field (empty string)");
} else {
host = Util::strdup_new (address.start (), address.length ());
}
break;
case 1: // sdb_port
if (!address.to_integer (sdb_port)) {
log_error (LOG_DEFAULT, "Invalid --debug argument for the sdb_port field");
}
break;
case 2: // out_port
if (!address.to_integer (out_port)) {
log_error (LOG_DEFAULT, "Invalid --debug argument for the sdb_port field");
}
break;
}
field++;
}
} else if (!token.has_at ('\0', ARG_DEBUG.length ())) {
log_error (LOG_DEFAULT, "Invalid --debug argument.");
ret = false;
continue;
}
if (sdb_port < 0 || sdb_port > std::numeric_limits<unsigned short>::max ()) {
log_error (LOG_DEFAULT, "Invalid SDB port value %d", sdb_port);
ret = false;
continue;
}
if (out_port > std::numeric_limits<unsigned short>::max ()) {
log_error (LOG_DEFAULT, "Invalid output port value %d", out_port);
ret = false;
continue;
}
if (host == nullptr)
host = Util::strdup_new ("10.0.2.2");
options->host = host;
options->sdb_port = static_cast<uint16_t>(sdb_port);
options->out_port = out_port == -1 ? 0 : static_cast<uint16_t>(out_port);
} else if (token.starts_with (ARG_TIMEOUT)) {
if (!token.to_integer (options->timeout_time, ARG_TIMEOUT.length ())) {
log_error (LOG_DEFAULT, "Invalid --timeout argument.");
ret = false;
}
} else if (token.starts_with (ARG_SERVER)) {
options->server = token.has_at ('y', ARG_SERVER.length ()) || token.has_at ('Y', ARG_SERVER.length ());
} else if (token.starts_with (ARG_LOGLEVEL)) {
if (!token.to_integer (options->loglevel, ARG_LOGLEVEL.length ())) {
log_error (LOG_DEFAULT, "Invalid --loglevel argument.");
ret = false;
}
} else {
static_local_string<SMALL_STRING_PARSE_BUFFER_LEN> arg (token);
log_error (LOG_DEFAULT, "Unknown runtime argument: '%s'", arg.get ());
ret = false;
}
}
return ret;
}
#endif // def DEBUG && !WINDOWS
inline void
MonodroidRuntime::set_debug_options (void)
{
if (AndroidSystem::monodroid_get_system_property (SharedConstants::DEBUG_MONO_DEBUG_PROPERTY, nullptr) == 0)
return;
embeddedAssemblies.set_register_debug_symbols (true);
mono_debug_init (MONO_DEBUG_FORMAT_MONO);
}
void
MonodroidRuntime::mono_runtime_init ([[maybe_unused]] JNIEnv *env, [[maybe_unused]] dynamic_local_string<PROPERTY_VALUE_BUFFER_LEN>& runtime_args)
{
#if defined (DEBUG)
RuntimeOptions options{};
int64_t cur_time;
cur_time = time (nullptr);
if (!parse_runtime_args (runtime_args, &options)) {
log_error (LOG_DEFAULT, "Failed to parse runtime args: '%s'", runtime_args.get ());
} else if (options.debug && cur_time > options.timeout_time) {
log_warn (LOG_DEBUGGER, "Not starting the debugger as the timeout value has been reached; current-time: %lli timeout: %lli", cur_time, options.timeout_time);
} else if (options.debug && cur_time <= options.timeout_time) {
embeddedAssemblies.set_register_debug_symbols (true);
int loglevel;
if (Logger::have_debugger_log_level ())
loglevel = Logger::get_debugger_log_level ();
else
loglevel = options.loglevel;
char *debug_arg = Util::monodroid_strdup_printf (
"--debugger-agent=transport=dt_socket,loglevel=%d,address=%s:%d,%sembedding=1,timeout=%d",
loglevel,
options.host,
options.sdb_port,
options.server ? "server=y," : "",
options.timeout_time
);
char *debug_options [2] = {
debug_arg,
nullptr
};
// this text is used in unit tests to check the debugger started
// do not change it without updating the test.
log_warn (LOG_DEBUGGER, "Trying to initialize the debugger with options: %s", debug_arg);
if (options.out_port > 0) {
int sock = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP);
if (sock < 0) {
log_fatal (LOG_DEBUGGER, "Could not construct a socket for stdout and stderr; does your app have the android.permission.INTERNET permission? %s", strerror (errno));
Helpers::abort_application ();
}
sockaddr_in addr;
memset (&addr, 0, sizeof (addr));
addr.sin_family = AF_INET;
addr.sin_port = htons (options.out_port);
int r;
if ((r = inet_pton (AF_INET, options.host, &addr.sin_addr)) != 1) {
log_error (LOG_DEBUGGER, "Could not setup a socket for stdout and stderr: %s",
r == -1 ? strerror (errno) : "address not parseable in the specified address family");
Helpers::abort_application ();
}
if (options.server) {
int accepted = monodroid_debug_accept (sock, addr);
log_warn (LOG_DEBUGGER, "Accepted stdout connection: %d", accepted);
if (accepted < 0) {
log_fatal (LOG_DEBUGGER, "Error accepting stdout and stderr (%s:%d): %s",
options.host, options.out_port, strerror (errno));
Helpers::abort_application ();
}
dup2 (accepted, 1);
dup2 (accepted, 2);
} else {
if (monodroid_debug_connect (sock, addr) != 1) {
log_fatal (LOG_DEBUGGER, "Error connecting stdout and stderr (%s:%d): %s",
options.host, options.out_port, strerror (errno));
Helpers::abort_application ();
}
dup2 (sock, 1);
dup2 (sock, 2);
}
}
if (debug.enable_soft_breakpoints ()) {
constexpr std::string_view soft_breakpoints { "--soft-breakpoints" };
debug_options[1] = const_cast<char*> (soft_breakpoints.data ());
mono_jit_parse_options (2, debug_options);
} else {
mono_jit_parse_options (1, debug_options);
}
mono_debug_init (MONO_DEBUG_FORMAT_MONO);
} else {
set_debug_options ();
}
delete[] options.host;
#else
set_debug_options ();
#endif
// TESTING ASAN: use-after-free
// char *x = new char[10]{};
// delete[] x;
// log_warn (LOG_DEFAULT, "x == %s", x);
// TESTING UBSAN: integer overflow
//log_warn (LOG_DEFAULT, "Let us have an overflow: %d", INT_MAX + 1);
bool log_methods = FastTiming::enabled () && !FastTiming::is_bare_mode ();
if (log_methods) [[unlikely]] {
std::unique_ptr<char> jit_log_path {Util::path_combine (AndroidSystem::override_dirs [0], "methods.txt")};
Util::create_directory (AndroidSystem::override_dirs [0], 0755);
jit_log = Util::monodroid_fopen (jit_log_path.get (), "a");
Util::set_world_accessable (jit_log_path.get ());
}
profiler_handle = mono_profiler_create (nullptr);
mono_profiler_set_thread_started_callback (profiler_handle, thread_start);
mono_profiler_set_thread_stopped_callback (profiler_handle, thread_end);
if (log_methods) [[unlikely]]{
jit_time.mark_start ();
mono_profiler_set_jit_begin_callback (profiler_handle, jit_begin);
mono_profiler_set_jit_done_callback (profiler_handle, jit_done);
mono_profiler_set_jit_failed_callback (profiler_handle, jit_failed);
}
parse_gdb_options ();
if (wait_for_gdb) {
log_warn (LOG_DEFAULT, "Waiting for gdb to attach...");
while (monodroid_gdb_wait) {
sleep (1);
}
}
dynamic_local_string<PROPERTY_VALUE_BUFFER_LEN> prop_val;
/* Additional runtime arguments passed to mono_jit_parse_options () */
if (AndroidSystem::monodroid_get_system_property (SharedConstants::DEBUG_MONO_RUNTIME_ARGS_PROPERTY, prop_val) > 0) {
char **ptr;
log_warn (LOG_DEBUGGER, "passing '%s' as extra arguments to the runtime.\n", prop_val.get ());
char **args = Util::monodroid_strsplit (prop_val.get (), " ", 0);
int argc = 0;
for (ptr = args; *ptr; ptr++)
argc ++;
mono_jit_parse_options (argc, args);
}
// int argc = 5;
// char* argv[] = { "-v", "-v", "-v", "-v", "-v" };
// mono_jit_parse_options (argc, argv);
mono_set_signal_chaining (1);
mono_set_crash_chaining (1);
osBridge.register_gc_hooks ();
/*
* Assembly preload hooks are invoked in _reverse_ registration order.
* Looking for assemblies from the update dir takes precedence over
* everything else, and thus must go LAST.
*/
embeddedAssemblies.install_preload_hooks_for_appdomains ();
#ifndef RELEASE
mono_install_assembly_preload_hook (open_from_update_dir, nullptr);
#endif
#if defined (RELEASE)
if (application_config.marshal_methods_enabled) {
xamarin_app_init (env, get_function_pointer_at_startup);
}
#endif // def RELEASE && def ANDROID && def NET
}
void
MonodroidRuntime::cleanup_runtime_config (MonovmRuntimeConfigArguments *args, [[maybe_unused]] void *user_data)
{
if (args == nullptr || args->kind != 1 || args->runtimeconfig.data.data == nullptr) {
return;
}
munmap (static_cast<void*>(const_cast<char*>(args->runtimeconfig.data.data)), args->runtimeconfig.data.data_len);
}
MonoDomain*
MonodroidRuntime::create_domain (JNIEnv *env, jstring_array_wrapper &runtimeApks, bool is_root_domain, bool have_split_apks)
{
size_t user_assemblies_count = 0;
gather_bundled_assemblies (runtimeApks, &user_assemblies_count, have_split_apks);
if (embeddedAssemblies.have_runtime_config_blob ()) {
size_t blob_time_index;
if (FastTiming::enabled ()) [[unlikely]] {
blob_time_index = internal_timing->start_event (TimingEventKind::RuntimeConfigBlob);
}
runtime_config_args.kind = 1;
embeddedAssemblies.get_runtime_config_blob (runtime_config_args.runtimeconfig.data.data, runtime_config_args.runtimeconfig.data.data_len);
monovm_runtimeconfig_initialize (&runtime_config_args, cleanup_runtime_config, nullptr);
if (FastTiming::enabled ()) [[unlikely]] {
internal_timing->end_event (blob_time_index);
}
}
if (user_assemblies_count == 0 && AndroidSystem::count_override_assemblies () == 0 && !is_running_on_desktop) {
#if defined (DEBUG)
log_fatal (LOG_DEFAULT, "No assemblies found in '%s' or '%s'. Assuming this is part of Fast Deployment. Exiting...",
AndroidSystem::override_dirs [0],
(AndroidSystem::override_dirs.size () > 1 && AndroidSystem::override_dirs [1] != nullptr) ? AndroidSystem::override_dirs [1] : "<unavailable>");
#else
log_fatal (LOG_DEFAULT, "No assemblies (or assembly blobs) were found in the application APK file(s) or on the filesystem");
#endif
constexpr const char *assemblies_prefix = EmbeddedAssemblies::get_assemblies_prefix ().data ();
log_fatal (LOG_DEFAULT, "Make sure that all entries in the APK directory named `%s` are STORED (not compressed)", assemblies_prefix);
log_fatal (LOG_DEFAULT, "If Android Gradle Plugin's minification feature is enabled, it is likely all the entries in `%s` are compressed", assemblies_prefix);
Helpers::abort_application ();
}
MonoDomain *domain = mono_jit_init_version (const_cast<char*> ("RootDomain"), const_cast<char*> ("mobile"));
if constexpr (is_running_on_desktop) {
if (is_root_domain) {
c_unique_ptr<char> corlib_error_message_guard {const_cast<char*>(mono_check_corlib_version ())};
char *corlib_error_message = corlib_error_message_guard.get ();
if (corlib_error_message == nullptr) {
if (!AndroidSystem::monodroid_get_system_property ("xamarin.studio.fakefaultycorliberrormessage", &corlib_error_message)) {
corlib_error_message = nullptr;
}
}
if (corlib_error_message != nullptr) {
jclass ex_klass = env->FindClass ("mono/android/MonoRuntimeException");
env->ThrowNew (ex_klass, corlib_error_message);
return nullptr;
}
// Load a basic environment for the RootDomain if run on desktop so that we can unload
// and reload most assemblies including Mono.Android itself
MonoAssemblyName *aname = mono_assembly_name_new ("System");
mono_assembly_load_full (aname, nullptr, nullptr, 0);
mono_assembly_name_free (aname);
}
}
return domain;
}
force_inline void
MonodroidRuntime::lookup_bridge_info (MonoClass *klass, const OSBridge::MonoJavaGCBridgeType *type, OSBridge::MonoJavaGCBridgeInfo *info)
{
info->klass = klass;
info->handle = mono_class_get_field_from_name (info->klass, const_cast<char*> ("handle"));
info->handle_type = mono_class_get_field_from_name (info->klass, const_cast<char*> ("handle_type"));
info->refs_added = mono_class_get_field_from_name (info->klass, const_cast<char*> ("refs_added"));
info->weak_handle = mono_class_get_field_from_name (info->klass, const_cast<char*> ("weak_handle"));
if (info->klass == nullptr || info->handle == nullptr || info->handle_type == nullptr ||
info->refs_added == nullptr || info->weak_handle == nullptr) {
log_fatal (LOG_DEFAULT, "The type `%s.%s` is missing required instance fields! handle=%p handle_type=%p refs_added=%p weak_handle=%p",
type->_namespace, type->_typename,
info->handle,
info->handle_type,
info->refs_added,
info->weak_handle);
Helpers::abort_application ();
}
}
force_inline void
MonodroidRuntime::lookup_bridge_info (MonoImage *image, const OSBridge::MonoJavaGCBridgeType *type, OSBridge::MonoJavaGCBridgeInfo *info)
{
lookup_bridge_info (
mono_class_from_name (image, type->_namespace, type->_typename),
type,
info
);
}
void
MonodroidRuntime::monodroid_debugger_unhandled_exception (MonoException *ex)
{
mono_debugger_agent_unhandled_exception (ex);
}
void
MonodroidRuntime::init_android_runtime (JNIEnv *env, jclass runtimeClass, jobject loader)
{
constexpr std::string_view icall_typemap_java_to_managed { "Java.Interop.TypeManager::monodroid_typemap_java_to_managed" };
constexpr std::string_view icall_typemap_managed_to_java { "Android.Runtime.JNIEnv::monodroid_typemap_managed_to_java" };
#if defined (RELEASE)
// The reason for these using is that otherwise the compiler will complain about not being
// able to cast overloaded methods to const void* pointers.
using j2mFn = MonoReflectionType* (*)(MonoString *java_type);
using m2jFn = const char* (*)(MonoReflectionType *type, const uint8_t *mvid);
mono_add_internal_call (icall_typemap_java_to_managed.data (), reinterpret_cast<const void*>(static_cast<j2mFn>(EmbeddedAssemblies::typemap_java_to_managed)));
mono_add_internal_call (icall_typemap_managed_to_java.data (), reinterpret_cast<const void*>(static_cast<m2jFn>(EmbeddedAssemblies::typemap_managed_to_java)));
#else
mono_add_internal_call (icall_typemap_java_to_managed.data (), reinterpret_cast<const void*>(typemap_java_to_managed));
mono_add_internal_call (icall_typemap_managed_to_java.data (), reinterpret_cast<const void*>(typemap_managed_to_java));
#endif // def RELEASE && def ANDROID
mono_add_internal_call ("Android.Runtime.RuntimeNativeMethods::monodroid_debugger_unhandled_exception", reinterpret_cast<const void*> (monodroid_debugger_unhandled_exception));
mono_add_internal_call ("Android.Runtime.RuntimeNativeMethods::monodroid_unhandled_exception", reinterpret_cast<const void*>(monodroid_unhandled_exception));
struct JnienvInitializeArgs init = {};
init.javaVm = osBridge.get_jvm ();
init.env = env;
init.logCategories = log_categories;
init.version = env->GetVersion ();
init.isRunningOnDesktop = is_running_on_desktop ? 1 : 0;
init.brokenExceptionTransitions = application_config.broken_exception_transitions ? 1 : 0;
init.packageNamingPolicy = static_cast<int>(application_config.package_naming_policy);
init.boundExceptionType = application_config.bound_exception_type;
init.jniAddNativeMethodRegistrationAttributePresent = application_config.jni_add_native_method_registration_attribute_present ? 1 : 0;
init.jniRemappingInUse = application_config.jni_remapping_replacement_type_count > 0 || application_config.jni_remapping_replacement_method_index_entry_count > 0;
init.marshalMethodsEnabled = application_config.marshal_methods_enabled;
java_System = RuntimeUtil::get_class_from_runtime_field (env, runtimeClass, "java_lang_System", true);
java_System_identityHashCode = env->GetStaticMethodID (java_System, "identityHashCode", "(Ljava/lang/Object;)I");
// GC threshold is 90% of the max GREF count
init.grefGcThreshold = static_cast<int>(AndroidSystem::get_gref_gc_threshold ());
log_info (LOG_GC, "GREF GC Threshold: %i", init.grefGcThreshold);
init.grefClass = RuntimeUtil::get_class_from_runtime_field (env, runtimeClass, "java_lang_Class", true);
Class_getName = env->GetMethodID (init.grefClass, "getName", "()Ljava/lang/String;");
init.Class_forName = env->GetStaticMethodID (init.grefClass, "forName", "(Ljava/lang/String;ZLjava/lang/ClassLoader;)Ljava/lang/Class;");
MonoAssembly *mono_android_assembly;
mono_android_assembly = Util::monodroid_load_assembly (default_alc, SharedConstants::MONO_ANDROID_ASSEMBLY_NAME.data ());
MonoImage *mono_android_assembly_image = mono_assembly_get_image (mono_android_assembly);
uint32_t i = 0;
for ( ; i < OSBridge::NUM_XA_GC_BRIDGE_TYPES; ++i) {
lookup_bridge_info (
mono_android_assembly_image,
&osBridge.get_java_gc_bridge_type (i),
&osBridge.get_java_gc_bridge_info (i)
);
}
MonoClass *runtime;
MonoMethod *method;
if constexpr (is_running_on_desktop) {
runtime = mono_class_from_name (mono_android_assembly_image, SharedConstants::ANDROID_RUNTIME_NS_NAME.data (), SharedConstants::JNIENVINIT_CLASS_NAME.data ());
method = mono_class_get_method_from_name (runtime, "Initialize", 1);
} else {
runtime = mono_class_get (mono_android_assembly_image, application_config.android_runtime_jnienv_class_token);
method = mono_get_method (mono_android_assembly_image, application_config.jnienv_initialize_method_token, runtime);
}
abort_unless (runtime != nullptr, "INTERNAL ERROR: unable to find the Android.Runtime.JNIEnvInit class!");
abort_unless (method != nullptr, "INTERNAL ERROR: Unable to find the Android.Runtime.JNIEnvInit.Initialize method!");
MonoAssembly *ji_assm;
ji_assm = Util::monodroid_load_assembly (default_alc, SharedConstants::JAVA_INTEROP_ASSEMBLY_NAME.data ());
MonoImage *ji_image = mono_assembly_get_image (ji_assm);
for ( ; i < OSBridge::NUM_XA_GC_BRIDGE_TYPES + OSBridge::NUM_JI_GC_BRIDGE_TYPES; ++i) {
lookup_bridge_info (
ji_image,
&osBridge.get_java_gc_bridge_type (i),
&osBridge.get_java_gc_bridge_info (i)
);
}
MonoError error;
/* If running on desktop, we may be swapping in a new Mono.Android image when calling this
* so always make sure we have the freshest handle to the method.
*/
if (registerType == nullptr || is_running_on_desktop) {
if constexpr (is_running_on_desktop) {
registerType = mono_class_get_method_from_name (runtime, "RegisterJniNatives", 5);
} else {
registerType = mono_get_method (mono_android_assembly_image, application_config.jnienv_registerjninatives_method_token, runtime);
jnienv_register_jni_natives = reinterpret_cast<jnienv_register_jni_natives_fn>(mono_method_get_unmanaged_callers_only_ftnptr (registerType, &error));
}
}
abort_unless (registerType != nullptr, "INTERNAL ERROR: Unable to find Android.Runtime.JNIEnvInit.RegisterJniNatives! %s", mono_error_get_message (&error));
jclass lrefLoaderClass = env->GetObjectClass (loader);
init.Loader_loadClass = env->GetMethodID (lrefLoaderClass, "loadClass", "(Ljava/lang/String;)Ljava/lang/Class;");
env->DeleteLocalRef (lrefLoaderClass);
init.grefLoader = env->NewGlobalRef (loader);
init.grefIGCUserPeer = RuntimeUtil::get_class_from_runtime_field (env, runtimeClass, "mono_android_IGCUserPeer", true);
osBridge.initialize_on_runtime_init (env, runtimeClass);
log_debug (LOG_DEFAULT, "Calling into managed runtime init");
size_t native_to_managed_index;
if (FastTiming::enabled ()) [[unlikely]] {
native_to_managed_index = internal_timing->start_event (TimingEventKind::NativeToManagedTransition);
}
auto initialize = reinterpret_cast<jnienv_initialize_fn> (mono_method_get_unmanaged_callers_only_ftnptr (method, &error));
if (initialize == nullptr) {
log_fatal (LOG_DEFAULT, "Failed to get pointer to Initialize. Mono error: %s", mono_error_get_message (&error));
}
abort_unless (
initialize != nullptr,
"Failed to obtain unmanaged-callers-only pointer to the Android.Runtime.JNIEnvInit.Initialize method. %s",
mono_error_get_message (&error)
);
initialize (&init);
if (FastTiming::enabled ()) [[unlikely]] {
internal_timing->end_event (native_to_managed_index);
}
}
MonoClass*
MonodroidRuntime::get_android_runtime_class ()
{
MonoAssembly *assm = Util::monodroid_load_assembly (default_alc, SharedConstants::MONO_ANDROID_ASSEMBLY_NAME.data ());
MonoImage *image = mono_assembly_get_image (assm);
return mono_class_from_name (image, SharedConstants::ANDROID_RUNTIME_NS_NAME.data (), SharedConstants::JNIENV_CLASS_NAME.data ());
}
inline void
MonodroidRuntime::propagate_uncaught_exception (JNIEnv *env, jobject javaThread, jthrowable javaException)
{
MonoClass *runtime = get_android_runtime_class ();
MonoMethod *method = mono_class_get_method_from_name (runtime, "PropagateUncaughtException", 3);
void* args[] = {
&env,
&javaThread,
&javaException,
};
mono_runtime_invoke (method, nullptr, args, nullptr);
}
#if DEBUG
static void
setup_gc_logging (void)
{
Logger::set_gc_spew_enabled (AndroidSystem::monodroid_get_system_property (SharedConstants::DEBUG_MONO_GC_PROPERTY, nullptr) > 0);
if (Logger::gc_spew_enabled ()) {
log_categories |= LOG_GC;
}
}
#endif
inline void
MonodroidRuntime::set_environment_variable_for_directory (const char *name, jstring_wrapper &value, bool createDirectory, mode_t mode)
{
if (createDirectory) {
int rv = Util::create_directory (value.get_cstr (), mode);
if (rv < 0 && errno != EEXIST)
log_warn (LOG_DEFAULT, "Failed to create directory for environment variable %s. %s", name, strerror (errno));
}
setenv (name, value.get_cstr (), 1);
}
inline void
MonodroidRuntime::create_xdg_directory (jstring_wrapper& home, size_t home_len, std::string_view const& relative_path, std::string_view const& environment_variable_name) noexcept
{
static_local_string<SENSIBLE_PATH_MAX> dir (home_len + relative_path.length ());
Util::path_combine (dir, home.get_cstr (), home_len, relative_path.data (), relative_path.length ());
log_debug (LOG_DEFAULT, "Creating XDG directory: %s", dir.get ());
int rv = Util::create_directory (dir.get (), DEFAULT_DIRECTORY_MODE);
if (rv < 0 && errno != EEXIST)
log_warn (LOG_DEFAULT, "Failed to create XDG directory %s. %s", dir.get (), strerror (errno));
if (!environment_variable_name.empty ()) {
setenv (environment_variable_name.data (), dir.get (), 1);
}
}
inline void
MonodroidRuntime::create_xdg_directories_and_environment (jstring_wrapper &homeDir)
{
size_t home_len = strlen (homeDir.get_cstr ());
constexpr std::string_view XDG_DATA_HOME { "XDG_DATA_HOME" };
constexpr std::string_view HOME_PATH { ".local/share" };
create_xdg_directory (homeDir, home_len, HOME_PATH, XDG_DATA_HOME);
constexpr std::string_view XDG_CONFIG_HOME { "XDG_CONFIG_HOME" };
constexpr std::string_view CONFIG_PATH { ".config" };
create_xdg_directory (homeDir, home_len, CONFIG_PATH, XDG_CONFIG_HOME);
}