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-rw-r--r--src/runtime_support.cc90
1 files changed, 70 insertions, 20 deletions
diff --git a/src/runtime_support.cc b/src/runtime_support.cc
index ba3e1b4b1e..ccb8dccf98 100644
--- a/src/runtime_support.cc
+++ b/src/runtime_support.cc
@@ -901,14 +901,36 @@ extern "C" uint64_t artFindInterfaceMethodInCacheFromCode(uint32_t method_idx,
return result;
}
+static void ThrowNewUndeclaredThrowableException(Thread* self, JNIEnv* env, Throwable* exception) {
+ ScopedLocalRef<jclass> jlr_UTE_class(env,
+ env->FindClass("java/lang/reflect/UndeclaredThrowableException"));
+ if (jlr_UTE_class.get() == NULL) {
+ LOG(ERROR) << "Couldn't throw new \"java/lang/reflect/UndeclaredThrowableException\"";
+ } else {
+ jmethodID jlre_UTE_constructor = env->GetMethodID(jlr_UTE_class.get(), "<init>",
+ "(Ljava/lang/Throwable;)V");
+ jthrowable jexception = AddLocalReference<jthrowable>(env, exception);
+ ScopedLocalRef<jthrowable> jlr_UTE(env,
+ reinterpret_cast<jthrowable>(env->NewObject(jlr_UTE_class.get(), jlre_UTE_constructor,
+ jexception)));
+ int rc = env->Throw(jlr_UTE.get());
+ if (rc != JNI_OK) {
+ LOG(ERROR) << "Couldn't throw new \"java/lang/reflect/UndeclaredThrowableException\"";
+ }
+ }
+ CHECK(self->IsExceptionPending());
+}
+
// Handler for invocation on proxy methods. On entry a frame will exist for the proxy object method
// which is responsible for recording callee save registers. We explicitly handlerize incoming
// reference arguments (so they survive GC) and create a boxed argument array. Finally we invoke
// the invocation handler which is a field within the proxy object receiver.
extern "C" void artProxyInvokeHandler(Method* proxy_method, Object* receiver,
- byte* stack_args, Thread* self) {
+ Thread* self, byte* stack_args) {
// Register the top of the managed stack
- self->SetTopOfStack(reinterpret_cast<Method**>(stack_args + 8), 0);
+ Method** proxy_sp = reinterpret_cast<Method**>(stack_args - 12);
+ DCHECK_EQ(*proxy_sp, proxy_method);
+ self->SetTopOfStack(proxy_sp, 0);
// TODO: ARM specific
DCHECK_EQ(proxy_method->GetFrameSizeInBytes(), 48u);
// Start new JNI local reference state
@@ -941,7 +963,7 @@ extern "C" void artProxyInvokeHandler(Method* proxy_method, Object* receiver,
param_index++;
}
// Placing into local references incoming arguments from the caller's stack arguments
- cur_arg += 5; // skip LR, Method* and spills for R1 to R3
+ cur_arg += 11; // skip callee saves, LR, Method* and out arg spills for R1 to R3
while (param_index < num_params) {
if (proxy_method->IsParamAReference(param_index)) {
Object* obj = *reinterpret_cast<Object**>(stack_args + (cur_arg * kPointerSize));
@@ -951,23 +973,31 @@ extern "C" void artProxyInvokeHandler(Method* proxy_method, Object* receiver,
cur_arg = cur_arg + (proxy_method->IsParamALongOrDouble(param_index) ? 2 : 1);
param_index++;
}
- // Create args array
- ObjectArray<Object>* args =
- Runtime::Current()->GetClassLinker()->AllocObjectArray<Object>(num_params - 1);
- if(args == NULL) {
- CHECK(self->IsExceptionPending());
- return;
- }
// Set up arguments array and place in local IRT during boxing (which may allocate/GC)
jvalue args_jobj[3];
args_jobj[0].l = rcvr_jobj;
args_jobj[1].l = proxy_method_jobj;
- args_jobj[2].l = AddLocalReference<jobjectArray>(env, args);
+ // Args array, if no arguments then NULL (don't include receiver in argument count)
+ args_jobj[2].l = NULL;
+ ObjectArray<Object>* args = NULL;
+ if ((num_params - 1) > 0) {
+ args = Runtime::Current()->GetClassLinker()->AllocObjectArray<Object>(num_params - 1);
+ if(args == NULL) {
+ CHECK(self->IsExceptionPending());
+ return;
+ }
+ args_jobj[2].l = AddLocalReference<jobjectArray>(env, args);
+ }
+ // Convert proxy method into expected interface method
+ Method* interface_method = proxy_method->FindOverriddenMethod();
+ CHECK(interface_method != NULL);
+ args_jobj[1].l = AddLocalReference<jobject>(env, interface_method);
+ LOG(INFO) << "Interface method is " << PrettyMethod(interface_method, true);
// Box arguments
cur_arg = 0; // reset stack location to read to start
// reset index, will index into param type array which doesn't include the receiver
param_index = 0;
- ObjectArray<Class>* param_types = proxy_method->GetJavaParameterTypes();
+ ObjectArray<Class>* param_types = interface_method->GetJavaParameterTypes();
CHECK(param_types != NULL);
// Check number of parameter types agrees with number from the Method - less 1 for the receiver.
CHECK_EQ(static_cast<size_t>(param_types->GetLength()), num_params - 1);
@@ -980,8 +1010,7 @@ extern "C" void artProxyInvokeHandler(Method* proxy_method, Object* receiver,
JValue val = *reinterpret_cast<JValue*>(stack_args + (cur_arg * kPointerSize));
if (cur_arg == 1 && (param_type->IsPrimitiveLong() || param_type->IsPrimitiveDouble())) {
// long/double split over regs and stack, mask in high half from stack arguments
- // (7 = 2 reg args + LR + Method* + 3 arg reg spill slots)
- uint64_t high_half = *reinterpret_cast<uint32_t*>(stack_args + (7 * kPointerSize));
+ uint64_t high_half = *reinterpret_cast<uint32_t*>(stack_args + (13 * kPointerSize));
val.j = (val.j & 0xffffffffULL) | (high_half << 32);
}
BoxPrimitive(env, param_type, val);
@@ -995,8 +1024,8 @@ extern "C" void artProxyInvokeHandler(Method* proxy_method, Object* receiver,
param_index++;
}
// Placing into local references incoming arguments from the caller's stack arguments
- cur_arg += 5; // skip LR, Method* and spills for R1 to R3
- while (param_index < num_params) {
+ cur_arg += 11; // skip callee saves, LR, Method* and out arg spills for R1 to R3
+ while (param_index < (num_params - 1)) {
Class* param_type = param_types->Get(param_index);
Object* obj;
if (!param_type->IsPrimitive()) {
@@ -1017,13 +1046,13 @@ extern "C" void artProxyInvokeHandler(Method* proxy_method, Object* receiver,
static jmethodID inv_hand_invoke_mid = NULL;
static jfieldID proxy_inv_hand_fid = NULL;
if (proxy_inv_hand_fid == NULL) {
- ScopedLocalRef<jclass> proxy(env, env->FindClass("java.lang.reflect.Proxy"));
+ ScopedLocalRef<jclass> proxy(env, env->FindClass("java/lang/reflect/Proxy"));
proxy_inv_hand_fid = env->GetFieldID(proxy.get(), "h", "Ljava/lang/reflect/InvocationHandler;");
- ScopedLocalRef<jclass> inv_hand_class(env, env->FindClass("java.lang.reflect.InvocationHandler"));
+ ScopedLocalRef<jclass> inv_hand_class(env, env->FindClass("java/lang/reflect/InvocationHandler"));
inv_hand_invoke_mid = env->GetMethodID(inv_hand_class.get(), "invoke",
"(Ljava/lang/Object;Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;");
}
- DCHECK(env->IsInstanceOf(rcvr_jobj, env->FindClass("java.lang.reflect.Proxy")));
+ DCHECK(env->IsInstanceOf(rcvr_jobj, env->FindClass("java/lang/reflect/Proxy")));
jobject inv_hand = env->GetObjectField(rcvr_jobj, proxy_inv_hand_fid);
// Call InvocationHandler.invoke
jobject result = env->CallObjectMethodA(inv_hand, inv_hand_invoke_mid, args_jobj);
@@ -1032,11 +1061,32 @@ extern "C" void artProxyInvokeHandler(Method* proxy_method, Object* receiver,
Object* result_ref = self->DecodeJObject(result);
if (result_ref != NULL) {
JValue result_unboxed;
- UnboxPrimitive(env, result_ref, proxy_method->GetReturnType(), result_unboxed);
+ UnboxPrimitive(env, result_ref, interface_method->GetReturnType(), result_unboxed);
*reinterpret_cast<JValue*>(stack_args) = result_unboxed;
} else {
*reinterpret_cast<jobject*>(stack_args) = NULL;
}
+ } else {
+ // In the case of checked exceptions that aren't declared, the exception must be wrapped by
+ // a UndeclaredThrowableException.
+ Throwable* exception = self->GetException();
+ self->ClearException();
+ if (!exception->IsCheckedException()) {
+ self->SetException(exception);
+ } else {
+ ObjectArray<Class>* declared_exceptions = proxy_method->GetExceptionTypes();
+ Class* exception_class = exception->GetClass();
+ bool declares_exception = false;
+ for (int i = 0; i < declared_exceptions->GetLength() && !declares_exception; i++) {
+ Class* declared_exception = declared_exceptions->Get(i);
+ declares_exception = declared_exception->IsAssignableFrom(exception_class);
+ }
+ if (declares_exception) {
+ self->SetException(exception);
+ } else {
+ ThrowNewUndeclaredThrowableException(self, env, exception);
+ }
+ }
}
}
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-10-22 01:51:29 +0000