Mercurial > hg > graal-compiler
view src/share/vm/c1x/c1x_VMEntries.cpp @ 2282:0309d394eb5f
Added support for non-null oop values in scope objects (allocating global handle).
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
---|---|
date | Mon, 04 Apr 2011 21:02:45 +0200 |
parents | b966d9b66bf9 |
children | 8c426c2891c8 |
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/* * Copyright 2000-2010 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ #include "precompiled.hpp" #include "c1x/c1x_VMEntries.hpp" #include "c1x/c1x_Compiler.hpp" #include "c1x/c1x_JavaAccess.hpp" #include "c1x/c1x_CodeInstaller.hpp" #include "c1x/c1x_VMExits.hpp" #include "c1x/c1x_VmIds.hpp" #include "c1/c1_Runtime1.hpp" // public byte[] RiMethod_code(long vmId); JNIEXPORT jbyteArray JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1code(JNIEnv *env, jobject, jlong vmId) { methodHandle method = VmIds::get<methodOop>(vmId); int code_size = method->code_size(); jbyteArray result = env->NewByteArray(code_size); env->SetByteArrayRegion(result, 0, code_size, (const jbyte *) method->code_base()); return result; } // public int RiMethod_maxStackSize(long vmId); JNIEXPORT jint JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1maxStackSize(JNIEnv *, jobject, jlong vmId) { return VmIds::get<methodOop>(vmId)->max_stack(); } // public int RiMethod_maxLocals(long vmId); JNIEXPORT jint JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1maxLocals(JNIEnv *, jobject, jlong vmId) { return VmIds::get<methodOop>(vmId)->max_locals(); } // public RiType RiMethod_holder(long vmId); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1holder(JNIEnv *, jobject, jlong vmId) { VM_ENTRY_MARK KlassHandle klass = VmIds::get<methodOop>(vmId)->method_holder(); Handle name = VmIds::toString<Handle>(klass->name(), CHECK_NULL); oop holder = C1XCompiler::createHotSpotTypeResolved(klass, name, CHECK_NULL); return JNIHandles::make_local(THREAD, holder); } // public String RiMethod_signature(long vmId); JNIEXPORT jstring JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1signature(JNIEnv *env, jobject, jlong vmId) { VM_ENTRY_MARK methodOop method = VmIds::get<methodOop>(vmId); method->constMethod()->exception_table(); return VmIds::toString<jstring>(method->signature(), THREAD); } // public int RiMethod_accessFlags(long vmId); JNIEXPORT jint JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1accessFlags(JNIEnv *, jobject, jlong vmId) { return VmIds::get<methodOop>(vmId)->access_flags().as_int(); } // public RiExceptionHandler[] RiMethod_exceptionHandlers(long vmId); JNIEXPORT jobjectArray JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1exceptionHandlers(JNIEnv *, jobject, jlong vmId) { VM_ENTRY_MARK methodHandle method = VmIds::get<methodOop>(vmId); typeArrayHandle handlers = method->exception_table(); int handler_count = handlers.is_null() ? 0 : handlers->length() / 4; instanceKlass::cast(HotSpotExceptionHandler::klass())->initialize(CHECK_NULL); objArrayHandle array = oopFactory::new_objArray(SystemDictionary::RiExceptionHandler_klass(), handler_count, CHECK_NULL); for (int i = 0; i < handler_count; i++) { // exception handlers are stored as four integers: start bci, end bci, handler bci, catch class constant pool index int base = i * 4; Handle entry = instanceKlass::cast(HotSpotExceptionHandler::klass())->allocate_instance(CHECK_NULL); HotSpotExceptionHandler::set_startBci(entry, handlers->int_at(base + 0)); HotSpotExceptionHandler::set_endBci(entry, handlers->int_at(base + 1)); HotSpotExceptionHandler::set_handlerBci(entry, handlers->int_at(base + 2)); int catch_class_index = handlers->int_at(base + 3); HotSpotExceptionHandler::set_catchClassIndex(entry, catch_class_index); if (catch_class_index == 0) { HotSpotExceptionHandler::set_catchClass(entry, NULL); } else { constantPoolOop cp = instanceKlass::cast(method->method_holder())->constants(); ciInstanceKlass* loading_klass = (ciInstanceKlass *) CURRENT_ENV->get_object(method->method_holder()); bool is_accessible = false; ciKlass *klass = CURRENT_ENV->get_klass_by_index(cp, catch_class_index, is_accessible, loading_klass); oop catch_class = C1XCompiler::get_RiType(klass, method->method_holder(), CHECK_NULL); HotSpotExceptionHandler::set_catchClass(entry, catch_class); } array->obj_at_put(i, entry()); } return (jobjectArray) JNIHandles::make_local(array()); } // public boolean RiMethod_hasBalancedMonitors(long vmId); JNIEXPORT jint JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1hasBalancedMonitors(JNIEnv *, jobject, jlong vmId) { ciMethod* cimethod; { VM_ENTRY_MARK; cimethod = (ciMethod*)CURRENT_ENV->get_object(VmIds::get<methodOop>(vmId)); } return cimethod->has_balanced_monitors(); } // public boolean RiMethod_uniqueConcreteMethod(long vmId); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1uniqueConcreteMethod(JNIEnv *, jobject, jlong vmId) { VM_ENTRY_MARK; ciMethod* cimethod = (ciMethod*)CURRENT_ENV->get_object(VmIds::get<methodOop>(vmId)); if (cimethod->holder()->is_interface()) { // Cannot trust interfaces. Because of: // interface I { void foo(); } // class A { public void foo() {} } // class B extends A implements I { } // class C extends B { public void foo() { } } // class D extends B { } // Would lead to identify C.foo() as the unique concrete method for I.foo() without seeing A.foo(). return false; } klassOop klass = (klassOop)cimethod->holder()->get_oop(); methodHandle method((methodOop)cimethod->get_oop()); methodHandle unique_concrete; { ResourceMark rm; MutexLocker locker(Compile_lock); unique_concrete = methodHandle(Dependencies::find_unique_concrete_method(klass, method())); } if (unique_concrete.is_null()) { return NULL; } Handle name = VmIds::toString<Handle>(unique_concrete->name(), CHECK_NULL); oop method_resolved = VMExits::createRiMethodResolved(VmIds::add<methodOop>(unique_concrete()), name, CHECK_NULL); return JNIHandles::make_local(THREAD, method_resolved); } // public RiType RiSignature_lookupType(String returnType, HotSpotTypeResolved accessingClass); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiSignature_1lookupType(JNIEnv *env, jobject, jstring jname, jobject accessingClass) { VM_ENTRY_MARK; Symbol* nameSymbol = VmIds::toSymbol(jname); Handle name = JNIHandles::resolve(jname); oop result; if (nameSymbol == vmSymbols::int_signature()) { result = VMExits::createRiTypePrimitive((int) T_INT, THREAD); } else if (nameSymbol == vmSymbols::long_signature()) { result = VMExits::createRiTypePrimitive((int) T_LONG, THREAD); } else if (nameSymbol == vmSymbols::bool_signature()) { result = VMExits::createRiTypePrimitive((int) T_BOOLEAN, THREAD); } else if (nameSymbol == vmSymbols::char_signature()) { result = VMExits::createRiTypePrimitive((int) T_CHAR, THREAD); } else if (nameSymbol == vmSymbols::short_signature()) { result = VMExits::createRiTypePrimitive((int) T_SHORT, THREAD); } else if (nameSymbol == vmSymbols::byte_signature()) { result = VMExits::createRiTypePrimitive((int) T_BYTE, THREAD); } else if (nameSymbol == vmSymbols::double_signature()) { result = VMExits::createRiTypePrimitive((int) T_DOUBLE, THREAD); } else if (nameSymbol == vmSymbols::float_signature()) { result = VMExits::createRiTypePrimitive((int) T_FLOAT, THREAD); } else { klassOop resolved_type = NULL; // if the name isn't in the symbol table then the class isn't loaded anyway... if (nameSymbol != NULL) { Handle classloader; Handle protectionDomain; if (JNIHandles::resolve(accessingClass) != NULL) { classloader = java_lang_Class::as_klassOop(HotSpotTypeResolved::javaMirror(accessingClass))->klass_part()->class_loader(); protectionDomain = java_lang_Class::as_klassOop(HotSpotTypeResolved::javaMirror(accessingClass))->klass_part()->protection_domain(); } resolved_type = SystemDictionary::resolve_or_null(nameSymbol, classloader, protectionDomain, THREAD); if (HAS_PENDING_EXCEPTION) { CLEAR_PENDING_EXCEPTION; resolved_type = NULL; } } if (resolved_type != NULL) { result = C1XCompiler::createHotSpotTypeResolved(resolved_type, name, CHECK_NULL); } else { result = VMExits::createRiTypeUnresolved(name, THREAD); } } return JNIHandles::make_local(THREAD, result); } // public Object RiConstantPool_lookupConstant(long vmId, int cpi); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupConstant(JNIEnv *env, jobject, jlong vmId, jint index) { VM_ENTRY_MARK; constantPoolOop cp = VmIds::get<constantPoolOop>(vmId); oop result = NULL; constantTag tag = cp->tag_at(index); if (tag.is_int()) { result = VMExits::createCiConstant(CiKind::Int(), cp->int_at(index), CHECK_0); } else if (tag.is_long()) { result = VMExits::createCiConstant(CiKind::Long(), cp->long_at(index), CHECK_0); } else if (tag.is_float()) { result = VMExits::createCiConstantFloat(cp->float_at(index), CHECK_0); } else if (tag.is_double()) { result = VMExits::createCiConstantDouble(cp->double_at(index), CHECK_0); } else if (tag.is_string() || tag.is_unresolved_string()) { oop string = NULL; if (cp->is_pseudo_string_at(index)) { string = cp->pseudo_string_at(index); } else { string = cp->string_at(index, THREAD); if (HAS_PENDING_EXCEPTION) { CLEAR_PENDING_EXCEPTION; // TODO: Gracefully exit compilation. fatal("out of memory during compilation!"); return NULL; } } result = VMExits::createCiConstantObject(string, CHECK_0); } else if (tag.is_klass() || tag.is_unresolved_klass()) { bool ignore; ciInstanceKlass* accessor = (ciInstanceKlass*) ciEnv::current()->get_object(cp->pool_holder()); ciKlass* klass = ciEnv::current()->get_klass_by_index(cp, index, ignore, accessor); result = C1XCompiler::get_RiType(klass, cp->pool_holder(), CHECK_NULL); } else if (tag.is_object()) { oop obj = cp->object_at(index); assert(obj->is_instance(), "must be an instance"); result = VMExits::createCiConstantObject(obj, CHECK_NULL); } else { ShouldNotReachHere(); } return JNIHandles::make_local(THREAD, result); } // public RiMethod RiConstantPool_lookupMethod(long vmId, int cpi, byte byteCode); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupMethod(JNIEnv *env, jobject, jlong vmId, jint index, jbyte byteCode) { VM_ENTRY_MARK; index = C1XCompiler::to_cp_index_u2(index); constantPoolHandle cp = VmIds::get<constantPoolOop>(vmId); Bytecodes::Code bc = (Bytecodes::Code) (((int) byteCode) & 0xFF); ciInstanceKlass* loading_klass = (ciInstanceKlass *) CURRENT_ENV->get_object(cp->pool_holder()); ciMethod *cimethod = CURRENT_ENV->get_method_by_index(cp, index, bc, loading_klass); if (cimethod->is_loaded()) { methodOop method = (methodOop) cimethod->get_oop(); Handle name = VmIds::toString<Handle>(method->name(), CHECK_NULL); return JNIHandles::make_local(THREAD, VMExits::createRiMethodResolved(VmIds::add<methodOop>(method), name, THREAD)); } else { Handle name = VmIds::toString<Handle>(cimethod->name()->get_symbol(), CHECK_NULL); Handle signature = VmIds::toString<Handle>(cimethod->signature()->as_symbol()->get_symbol(), CHECK_NULL); Handle holder = C1XCompiler::get_RiType(cimethod->holder(), cp->klass(), THREAD); return JNIHandles::make_local(THREAD, VMExits::createRiMethodUnresolved(name, signature, holder, THREAD)); } } // public RiSignature RiConstantPool_lookupSignature(long vmId, int cpi); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupSignature(JNIEnv *env, jobject, jlong vmId, jint index) { fatal("currently unsupported"); return NULL; } // public RiType RiConstantPool_lookupType(long vmId, int cpi); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupType(JNIEnv *env, jobject, jlong vmId, jint index) { VM_ENTRY_MARK; constantPoolOop cp = VmIds::get<constantPoolOop>(vmId); ciInstanceKlass* loading_klass = (ciInstanceKlass *) CURRENT_ENV->get_object(cp->pool_holder()); bool is_accessible = false; ciKlass *klass = CURRENT_ENV->get_klass_by_index(cp, index, is_accessible, loading_klass); return JNIHandles::make_local(THREAD, C1XCompiler::get_RiType(klass, cp->klass(), THREAD)); } // public RiField RiConstantPool_lookupField(long vmId, int cpi); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupField(JNIEnv *env, jobject, jlong vmId, jint index, jbyte byteCode) { VM_ENTRY_MARK; index = C1XCompiler::to_cp_index_u2(index); constantPoolOop cp = VmIds::get<constantPoolOop>(vmId); ciInstanceKlass* loading_klass = (ciInstanceKlass *) CURRENT_ENV->get_object(cp->pool_holder()); ciField *field = CURRENT_ENV->get_field_by_index(loading_klass, index); Bytecodes::Code code = (Bytecodes::Code)(((int) byteCode) & 0xFF); Handle field_handle = C1XCompiler::get_RiField(field, loading_klass, cp->pool_holder(), code, THREAD); bool is_constant = field->is_constant(); if (is_constant && field->is_static()) { ciConstant constant = field->constant_value(); oop constant_object = NULL; switch (constant.basic_type()) { case T_OBJECT: case T_ARRAY: { ciObject* obj = constant.as_object(); if (obj->is_null_object()) { constant_object = VMExits::createCiConstantObject(NULL, CHECK_0); } else if (obj->can_be_constant()) { constant_object = VMExits::createCiConstantObject(constant.as_object()->get_oop(), CHECK_0); } } break; case T_DOUBLE: constant_object = VMExits::createCiConstantDouble(constant.as_double(), CHECK_0); break; case T_FLOAT: constant_object = VMExits::createCiConstantFloat(constant.as_float(), CHECK_0); break; case T_LONG: constant_object = VMExits::createCiConstant(CiKind::Long(), constant.as_long(), CHECK_0); break; case T_INT: constant_object = VMExits::createCiConstant(CiKind::Int(), constant.as_int(), CHECK_0); break; case T_SHORT: constant_object = VMExits::createCiConstant(CiKind::Short(), constant.as_int(), CHECK_0); break; case T_CHAR: constant_object = VMExits::createCiConstant(CiKind::Char(), constant.as_int(), CHECK_0); break; case T_BYTE: constant_object = VMExits::createCiConstant(CiKind::Byte(), constant.as_int(), CHECK_0); break; case T_BOOLEAN: constant_object = VMExits::createCiConstant(CiKind::Boolean(), constant.as_int(), CHECK_0); break; default: constant.print(); fatal("Unhandled constant"); } if (constant_object != NULL) { HotSpotField::set_constant(field_handle, constant_object); } } return JNIHandles::make_local(THREAD, field_handle()); } // public RiConstantPool RiType_constantPool(HotSpotTypeResolved klass); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiType_1constantPool(JNIEnv *, jobject, jobject klass) { VM_ENTRY_MARK; assert(JNIHandles::resolve(klass) != NULL, ""); constantPoolOop constantPool = ((instanceKlass*)java_lang_Class::as_klassOop(HotSpotTypeResolved::javaMirror(klass))->klass_part())->constants(); return JNIHandles::make_local(VMExits::createRiConstantPool(VmIds::add<constantPoolOop>(constantPool), THREAD)); } // public RiMethod RiType_resolveMethodImpl(HotSpotTypeResolved klass, String name, String signature); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiType_3resolveMethodImpl(JNIEnv *, jobject, jobject resolved_type, jstring name, jstring signature) { VM_ENTRY_MARK; assert(JNIHandles::resolve(resolved_type) != NULL, ""); klassOop klass = java_lang_Class::as_klassOop(HotSpotTypeResolved::javaMirror(resolved_type)); Symbol* name_symbol = VmIds::toSymbol(name); Symbol* signature_symbol = VmIds::toSymbol(signature); methodOop method = klass->klass_part()->lookup_method(name_symbol, signature_symbol); if (method == NULL) { if (TraceC1X >= 3) { ResourceMark rm; tty->print_cr("Could not resolve method %s %s on klass %d", name_symbol->as_C_string(), signature_symbol->as_C_string(), klass->klass_part()->name()->as_C_string()); } return NULL; } return JNIHandles::make_local(THREAD, VMExits::createRiMethodResolved(VmIds::add<methodOop>(method), Handle(JNIHandles::resolve(name)), THREAD)); } // public boolean RiType_isSubtypeOf(HotSpotTypeResolved klass, RiType other); JNIEXPORT jboolean JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiType_2isSubtypeOf(JNIEnv *, jobject, jobject klass, jobject jother) { oop other = JNIHandles::resolve(jother); assert(other->is_a(HotSpotTypeResolved::klass()), "resolved hotspot type expected"); assert(JNIHandles::resolve(klass) != NULL, ""); klassOop thisKlass = java_lang_Class::as_klassOop(HotSpotTypeResolved::javaMirror(klass)); klassOop otherKlass = java_lang_Class::as_klassOop(HotSpotTypeResolved::javaMirror(other)); if (thisKlass->klass_part()->oop_is_instance_slow()) { return instanceKlass::cast(thisKlass)->is_subtype_of(otherKlass); } else if (thisKlass->klass_part()->oop_is_array()) { return arrayKlass::cast(thisKlass)->is_subtype_of(otherKlass); } else { fatal("unexpected class type"); return false; } } // public RiType RiType_componentType(HotSpotResolvedType klass); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiType_1componentType(JNIEnv *, jobject, jobject klass) { ciArrayKlass* array_klass; { VM_ENTRY_MARK; assert(JNIHandles::resolve(klass) != NULL, ""); array_klass = (ciArrayKlass *) CURRENT_ENV->get_object(java_lang_Class::as_klassOop(HotSpotTypeResolved::javaMirror(klass))); } ciType* element_type = array_klass->element_type(); VM_ENTRY_MARK; assert(JNIHandles::resolve(klass) != NULL, ""); return JNIHandles::make_local(C1XCompiler::get_RiType(element_type, java_lang_Class::as_klassOop(HotSpotTypeResolved::javaMirror(klass)), THREAD)); } // public RiType RiType_uniqueConcreteSubtype(HotSpotResolvedType klass); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiType_1uniqueConcreteSubtype(JNIEnv *, jobject, jobject klass) { Thread* THREAD = Thread::current(); KlassHandle klass_handle(java_lang_Class::as_klassOop(HotSpotTypeResolved::javaMirror(klass))); ciInstanceKlass* k = NULL; { VM_ENTRY_MARK; k = (ciInstanceKlass *) CURRENT_ENV->get_object(klass_handle()); } if (k->is_abstract()) { ciInstanceKlass* sub = k->unique_concrete_subklass(); if (sub != NULL && sub->is_leaf_type()) { VM_ENTRY_MARK; return JNIHandles::make_local(C1XCompiler::get_RiType(sub, klass_handle, THREAD)); } } else if (k->is_leaf_type()) { assert(!k->is_interface(), ""); return klass; } return NULL; } // public RiType RiType_arrayOf(HotSpotTypeResolved klass); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_RiType_1arrayOf(JNIEnv *, jobject, jobject klass) { VM_ENTRY_MARK; KlassHandle klass_handle(java_lang_Class::as_klassOop(HotSpotTypeResolved::javaMirror(klass))); KlassHandle array = klass_handle->array_klass(THREAD); Handle name = VmIds::toString<Handle>(array->name(), CHECK_NULL); return JNIHandles::make_local(THREAD, C1XCompiler::createHotSpotTypeResolved(array, name, THREAD)); } // public RiType getPrimitiveArrayType(CiKind kind); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_getPrimitiveArrayType(JNIEnv *env, jobject, jobject kind) { VM_ENTRY_MARK; BasicType type = C1XCompiler::kindToBasicType(CiKind::typeChar(kind)); assert(type != T_OBJECT, "primitive type expecteds"); ciKlass* klass = ciTypeArrayKlass::make(type); return JNIHandles::make_local(THREAD, C1XCompiler::get_RiType(klass, KlassHandle(), THREAD)); } // public RiType getType(Class<?> javaClass); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_getType(JNIEnv *env, jobject, jobject javaClass) { VM_ENTRY_MARK; oop javaClassOop = JNIHandles::resolve(javaClass); if (javaClassOop == NULL) { fatal("argument to VMEntries.getType must not be NULL"); return NULL; } else if (java_lang_Class::is_primitive(javaClassOop)) { BasicType basicType = java_lang_Class::primitive_type(javaClassOop); return JNIHandles::make_local(THREAD, VMExits::createRiTypePrimitive((int) basicType, THREAD)); } else { KlassHandle klass = java_lang_Class::as_klassOop(javaClassOop); Handle name = java_lang_String::create_from_symbol(klass->name(), CHECK_NULL); oop type = C1XCompiler::createHotSpotTypeResolved(klass, name, CHECK_NULL); return JNIHandles::make_local(THREAD, type); } } // helpers used to set fields in the HotSpotVMConfig object jfieldID getFieldID(JNIEnv* env, jobject obj, const char* name, const char* sig) { jfieldID id = env->GetFieldID(env->GetObjectClass(obj), name, sig); if (id == NULL) { TRACE_C1X_1("field not found: %s (%s)", name, sig); fatal("field not found"); } return id; } void set_boolean(JNIEnv* env, jobject obj, const char* name, bool value) { env->SetBooleanField(obj, getFieldID(env, obj, name, "Z"), value); } void set_int(JNIEnv* env, jobject obj, const char* name, int value) { env->SetIntField(obj, getFieldID(env, obj, name, "I"), value); } void set_long(JNIEnv* env, jobject obj, const char* name, jlong value) { env->SetLongField(obj, getFieldID(env, obj, name, "J"), value); } void set_object(JNIEnv* env, jobject obj, const char* name, jobject value) { env->SetObjectField(obj, getFieldID(env, obj, name, "Ljava/lang/Object;"), value); } void set_int_array(JNIEnv* env, jobject obj, const char* name, jarray value) { env->SetObjectField(obj, getFieldID(env, obj, name, "[I"), value); } jboolean get_boolean(JNIEnv* env, jobject obj, const char* name) { return env->GetBooleanField(obj, getFieldID(env, obj, name, "Z")); } jint get_int(JNIEnv* env, jobject obj, const char* name) { return env->GetIntField(obj, getFieldID(env, obj, name, "I")); } jlong get_long(JNIEnv* env, jobject obj, const char* name) { return env->GetLongField(obj, getFieldID(env, obj, name, "J")); } jobject get_object(JNIEnv* env, jobject obj, const char* name) { return env->GetObjectField(obj, getFieldID(env, obj, name, "Ljava/lang/Object;")); } jobject get_object(JNIEnv* env, jobject obj, const char* name, const char* sig) { return env->GetObjectField(obj, getFieldID(env, obj, name, sig)); } BasicType basicTypes[] = { T_BOOLEAN, T_BYTE, T_SHORT, T_CHAR, T_INT, T_FLOAT, T_LONG, T_DOUBLE, T_OBJECT }; int basicTypeCount = sizeof(basicTypes) / sizeof(BasicType); // public HotSpotVMConfig getConfiguration(); JNIEXPORT jobject JNICALL Java_com_sun_hotspot_c1x_VMEntries_getConfiguration(JNIEnv *env, jobject) { jclass klass = env->FindClass("com/sun/hotspot/c1x/HotSpotVMConfig"); assert(klass != NULL, "HotSpot vm config class not found"); jobject config = env->AllocObject(klass); #ifdef _WIN64 set_boolean(env, config, "windowsOs", true); #else set_boolean(env, config, "windowsOs", false); #endif set_boolean(env, config, "verifyPointers", VerifyOops); set_boolean(env, config, "useFastLocking", UseFastLocking); set_boolean(env, config, "useFastNewObjectArray", UseFastNewObjectArray); set_boolean(env, config, "useFastNewTypeArray", UseFastNewTypeArray); set_int(env, config, "codeEntryAlignment", CodeEntryAlignment); set_int(env, config, "vmPageSize", os::vm_page_size()); set_int(env, config, "stackShadowPages", StackShadowPages); set_int(env, config, "hubOffset", oopDesc::klass_offset_in_bytes()); set_int(env, config, "arrayLengthOffset", arrayOopDesc::length_offset_in_bytes()); set_int(env, config, "klassStateOffset", instanceKlass::init_state_offset_in_bytes() + sizeof(oopDesc)); set_int(env, config, "klassStateFullyInitialized", (int)instanceKlass::fully_initialized); set_int(env, config, "threadTlabTopOffset", in_bytes(JavaThread::tlab_top_offset())); set_int(env, config, "threadTlabEndOffset", in_bytes(JavaThread::tlab_end_offset())); set_int(env, config, "threadObjectOffset", in_bytes(JavaThread::threadObj_offset())); set_int(env, config, "instanceHeaderPrototypeOffset", Klass::prototype_header_offset_in_bytes() + klassOopDesc::klass_part_offset_in_bytes()); set_int(env, config, "threadExceptionOopOffset", in_bytes(JavaThread::exception_oop_offset())); set_int(env, config, "threadExceptionPcOffset", in_bytes(JavaThread::exception_pc_offset())); set_int(env, config, "threadMultiNewArrayStorage", in_bytes(JavaThread::c1x_multinewarray_storage_offset())); set_int(env, config, "classMirrorOffset", klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes()); set_long(env, config, "debugStub", VmIds::addStub((address)warning)); set_long(env, config, "instanceofStub", VmIds::addStub(Runtime1::entry_for(Runtime1::slow_subtype_check_id))); set_long(env, config, "verifyPointerStub", VmIds::addStub(Runtime1::entry_for(Runtime1::c1x_verify_pointer_id))); set_long(env, config, "newInstanceStub", VmIds::addStub(Runtime1::entry_for(Runtime1::fast_new_instance_init_check_id))); set_long(env, config, "unresolvedNewInstanceStub", VmIds::addStub(Runtime1::entry_for(Runtime1::new_instance_id))); set_long(env, config, "newTypeArrayStub", VmIds::addStub(Runtime1::entry_for(Runtime1::new_type_array_id))); set_long(env, config, "newObjectArrayStub", VmIds::addStub(Runtime1::entry_for(Runtime1::new_object_array_id))); set_long(env, config, "newMultiArrayStub", VmIds::addStub(Runtime1::entry_for(Runtime1::new_multi_array_id))); set_long(env, config, "loadKlassStub", VmIds::addStub(Runtime1::entry_for(Runtime1::load_klass_patching_id))); set_long(env, config, "accessFieldStub", VmIds::addStub(Runtime1::entry_for(Runtime1::access_field_patching_id))); set_long(env, config, "resolveStaticCallStub", VmIds::addStub(SharedRuntime::get_resolve_static_call_stub())); set_long(env, config, "inlineCacheMissStub", VmIds::addStub(SharedRuntime::get_ic_miss_stub())); set_long(env, config, "unwindExceptionStub", VmIds::addStub(Runtime1::entry_for(Runtime1::c1x_unwind_exception_call_id))); set_long(env, config, "handleExceptionStub", VmIds::addStub(Runtime1::entry_for(Runtime1::handle_exception_nofpu_id))); set_long(env, config, "handleDeoptStub", VmIds::addStub(SharedRuntime::deopt_blob()->unpack())); set_long(env, config, "throwClassCastException", VmIds::addStub(Runtime1::entry_for(Runtime1::throw_class_cast_exception_id))); set_long(env, config, "throwArrayStoreException", VmIds::addStub(Runtime1::entry_for(Runtime1::throw_array_store_exception_id))); set_long(env, config, "throwArrayIndexException", VmIds::addStub(Runtime1::entry_for(Runtime1::throw_range_check_failed_id))); set_long(env, config, "monitorEnterStub", VmIds::addStub(Runtime1::entry_for(Runtime1::monitorenter_id))); set_long(env, config, "monitorExitStub", VmIds::addStub(Runtime1::entry_for(Runtime1::monitorexit_id))); set_long(env, config, "fastMonitorEnterStub", VmIds::addStub(Runtime1::entry_for(Runtime1::c1x_monitorenter_id))); set_long(env, config, "fastMonitorExitStub", VmIds::addStub(Runtime1::entry_for(Runtime1::c1x_monitorexit_id))); set_long(env, config, "safepointPollingAddress", (jlong)(os::get_polling_page() + (SafepointPollOffset % os::vm_page_size()))); BarrierSet* bs = Universe::heap()->barrier_set(); switch (bs->kind()) { case BarrierSet::CardTableModRef: case BarrierSet::CardTableExtension: { jlong base = (jlong)((CardTableModRefBS*)bs)->byte_map_base; assert(base != 0, "unexpected byte_map_base"); set_long(env, config, "cardtableStartAddress", base); set_int(env, config, "cardtableShift", CardTableModRefBS::card_shift); break; } case BarrierSet::ModRef: case BarrierSet::Other: set_long(env, config, "cardtableStartAddress", 0); set_int(env, config, "cardtableShift", 0); // No post barriers break; #ifndef SERIALGC case BarrierSet::G1SATBCT: case BarrierSet::G1SATBCTLogging: #endif // SERIALGC default: ShouldNotReachHere(); } jintArray arrayOffsets = env->NewIntArray(basicTypeCount); for (int i=0; i<basicTypeCount; i++) { jint offset = arrayOopDesc::base_offset_in_bytes(basicTypes[i]); env->SetIntArrayRegion(arrayOffsets, i, 1, &offset); } set_int_array(env, config, "arrayOffsets", arrayOffsets); set_int(env, config, "arrayClassElementOffset", objArrayKlass::element_klass_offset_in_bytes() + sizeof(oopDesc)); return config; } // public void installMethod(HotSpotTargetMethod targetMethod); JNIEXPORT void JNICALL Java_com_sun_hotspot_c1x_VMEntries_installMethod(JNIEnv *jniEnv, jobject, jobject targetMethod) { VM_ENTRY_MARK; CodeInstaller installer(JNIHandles::resolve(targetMethod)); } // public HotSpotProxy installStub(HotSpotTargetMethod targetMethod, String name); JNIEXPORT jlong JNICALL Java_com_sun_hotspot_c1x_VMEntries_installStub(JNIEnv *jniEnv, jobject, jobject targetMethod) { VM_ENTRY_MARK; jlong id; CodeInstaller installer(JNIHandles::resolve(targetMethod), id); return id; } // public void recordBailout(String reason); JNIEXPORT void JNICALL Java_com_sun_hotspot_c1x_VMEntries_recordBailout(JNIEnv *jniEnv, jobject message) { if (C1XBailoutIsFatal) { Handle msg = JNIHandles::resolve(message); if (msg.is_null()) { java_lang_String::print(msg, tty); } fatal("Bailout in C1X"); } } #define CC (char*) /*cast a literal from (const char*)*/ #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &f) #define PROXY "J" #define TYPE "Lcom/sun/cri/ri/RiType;" #define RESOLVED_TYPE "Lcom/sun/hotspot/c1x/HotSpotTypeResolved;" #define METHOD "Lcom/sun/cri/ri/RiMethod;" #define SIGNATURE "Lcom/sun/cri/ri/RiSignature;" #define FIELD "Lcom/sun/cri/ri/RiField;" #define CONSTANT_POOL "Lcom/sun/cri/ri/RiConstantPool;" #define EXCEPTION_HANDLERS "[Lcom/sun/cri/ri/RiExceptionHandler;" #define TARGET_METHOD "Lcom/sun/hotspot/c1x/HotSpotTargetMethod;" #define CONFIG "Lcom/sun/hotspot/c1x/HotSpotVMConfig;" #define HS_METHOD "Lcom/sun/hotspot/c1x/HotSpotMethod;" #define CI_CONSTANT "Lcom/sun/cri/ci/CiConstant;" #define CI_KIND "Lcom/sun/cri/ci/CiKind;" #define STRING "Ljava/lang/String;" #define OBJECT "Ljava/lang/Object;" #define CLASS "Ljava/lang/Class;" JNINativeMethod VMEntries_methods[] = { {CC"RiMethod_code", CC"("PROXY")[B", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1code)}, {CC"RiMethod_maxStackSize", CC"("PROXY")I", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1maxStackSize)}, {CC"RiMethod_maxLocals", CC"("PROXY")I", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1maxLocals)}, {CC"RiMethod_holder", CC"("PROXY")"TYPE, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1holder)}, {CC"RiMethod_signature", CC"("PROXY")"STRING, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1signature)}, {CC"RiMethod_accessFlags", CC"("PROXY")I", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1accessFlags)}, {CC"RiMethod_exceptionHandlers", CC"("PROXY")"EXCEPTION_HANDLERS, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1exceptionHandlers)}, {CC"RiMethod_hasBalancedMonitors", CC"("PROXY")Z", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1hasBalancedMonitors)}, {CC"RiMethod_uniqueConcreteMethod", CC"("PROXY")"METHOD, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiMethod_1uniqueConcreteMethod)}, {CC"RiSignature_lookupType", CC"("STRING RESOLVED_TYPE")"TYPE, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiSignature_1lookupType)}, {CC"RiConstantPool_lookupConstant", CC"("PROXY"I)"OBJECT, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupConstant)}, {CC"RiConstantPool_lookupMethod", CC"("PROXY"IB)"METHOD, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupMethod)}, {CC"RiConstantPool_lookupSignature", CC"("PROXY"I)"SIGNATURE, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupSignature)}, {CC"RiConstantPool_lookupType", CC"("PROXY"I)"TYPE, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupType)}, {CC"RiConstantPool_lookupField", CC"("PROXY"IB)"FIELD, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiConstantPool_1lookupField)}, {CC"RiType_constantPool", CC"("RESOLVED_TYPE")"CONSTANT_POOL, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiType_1constantPool)}, {CC"RiType_resolveMethodImpl", CC"("RESOLVED_TYPE STRING STRING")"METHOD, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiType_3resolveMethodImpl)}, {CC"RiType_isSubtypeOf", CC"("RESOLVED_TYPE TYPE")Z", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiType_2isSubtypeOf)}, {CC"RiType_componentType", CC"("RESOLVED_TYPE")"TYPE, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiType_1componentType)}, {CC"RiType_uniqueConcreteSubtype", CC"("RESOLVED_TYPE")"TYPE, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiType_1uniqueConcreteSubtype)}, {CC"RiType_arrayOf", CC"("RESOLVED_TYPE")"TYPE, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_RiType_1arrayOf)}, {CC"getPrimitiveArrayType", CC"("CI_KIND")"TYPE, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_getPrimitiveArrayType)}, {CC"getType", CC"("CLASS")"TYPE, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_getType)}, {CC"getConfiguration", CC"()"CONFIG, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_getConfiguration)}, {CC"installMethod", CC"("TARGET_METHOD")V", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_installMethod)}, {CC"installStub", CC"("TARGET_METHOD")"PROXY, FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_installStub)}, {CC"recordBailout", CC"("STRING")V", FN_PTR(Java_com_sun_hotspot_c1x_VMEntries_recordBailout)} }; int VMEntries_methods_count() { return sizeof(VMEntries_methods) / sizeof(JNINativeMethod); }