--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/jvmci/jvmciCodeInstaller.cpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,1285 @@
+/*
+ * Copyright (c) 2011, 2017, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#include "precompiled.hpp"
+#include "asm/register.hpp"
+#include "classfile/vmSymbols.hpp"
+#include "code/compiledIC.hpp"
+#include "code/vmreg.inline.hpp"
+#include "compiler/compileBroker.hpp"
+#include "compiler/disassembler.hpp"
+#include "jvmci/jvmciEnv.hpp"
+#include "jvmci/jvmciCompiler.hpp"
+#include "jvmci/jvmciCodeInstaller.hpp"
+#include "jvmci/jvmciJavaClasses.hpp"
+#include "jvmci/jvmciCompilerToVM.hpp"
+#include "jvmci/jvmciRuntime.hpp"
+#include "oops/oop.inline.hpp"
+#include "oops/objArrayOop.inline.hpp"
+#include "runtime/javaCalls.hpp"
+#include "utilities/align.hpp"
+
+// frequently used constants
+// Allocate them with new so they are never destroyed (otherwise, a
+// forced exit could destroy these objects while they are still in
+// use).
+ConstantOopWriteValue* CodeInstaller::_oop_null_scope_value = new (ResourceObj::C_HEAP, mtCompiler) ConstantOopWriteValue(NULL);
+ConstantIntValue* CodeInstaller::_int_m1_scope_value = new (ResourceObj::C_HEAP, mtCompiler) ConstantIntValue(-1);
+ConstantIntValue* CodeInstaller::_int_0_scope_value = new (ResourceObj::C_HEAP, mtCompiler) ConstantIntValue(0);
+ConstantIntValue* CodeInstaller::_int_1_scope_value = new (ResourceObj::C_HEAP, mtCompiler) ConstantIntValue(1);
+ConstantIntValue* CodeInstaller::_int_2_scope_value = new (ResourceObj::C_HEAP, mtCompiler) ConstantIntValue(2);
+LocationValue* CodeInstaller::_illegal_value = new (ResourceObj::C_HEAP, mtCompiler) LocationValue(Location());
+
+Method* getMethodFromHotSpotMethod(oop hotspot_method) {
+ assert(hotspot_method != NULL && hotspot_method->is_a(HotSpotResolvedJavaMethodImpl::klass()), "sanity");
+ return CompilerToVM::asMethod(hotspot_method);
+}
+
+VMReg getVMRegFromLocation(Handle location, int total_frame_size, TRAPS) {
+ if (location.is_null()) {
+ THROW_NULL(vmSymbols::java_lang_NullPointerException());
+ }
+
+ Handle reg(THREAD, code_Location::reg(location));
+ jint offset = code_Location::offset(location);
+
+ if (reg.not_null()) {
+ // register
+ jint number = code_Register::number(reg);
+ VMReg vmReg = CodeInstaller::get_hotspot_reg(number, CHECK_NULL);
+ if (offset % 4 == 0) {
+ return vmReg->next(offset / 4);
+ } else {
+ JVMCI_ERROR_NULL("unaligned subregister offset %d in oop map", offset);
+ }
+ } else {
+ // stack slot
+ if (offset % 4 == 0) {
+ VMReg vmReg = VMRegImpl::stack2reg(offset / 4);
+ if (!OopMapValue::legal_vm_reg_name(vmReg)) {
+ // This restriction only applies to VMRegs that are used in OopMap but
+ // since that's the only use of VMRegs it's simplest to put this test
+ // here. This test should also be equivalent legal_vm_reg_name but JVMCI
+ // clients can use max_oop_map_stack_stack_offset to detect this problem
+ // directly. The asserts just ensure that the tests are in agreement.
+ assert(offset > CompilerToVM::Data::max_oop_map_stack_offset(), "illegal VMReg");
+ JVMCI_ERROR_NULL("stack offset %d is too large to be encoded in OopMap (max %d)",
+ offset, CompilerToVM::Data::max_oop_map_stack_offset());
+ }
+ assert(OopMapValue::legal_vm_reg_name(vmReg), "illegal VMReg");
+ return vmReg;
+ } else {
+ JVMCI_ERROR_NULL("unaligned stack offset %d in oop map", offset);
+ }
+ }
+}
+
+// creates a HotSpot oop map out of the byte arrays provided by DebugInfo
+OopMap* CodeInstaller::create_oop_map(Handle debug_info, TRAPS) {
+ Handle reference_map(THREAD, DebugInfo::referenceMap(debug_info));
+ if (reference_map.is_null()) {
+ THROW_NULL(vmSymbols::java_lang_NullPointerException());
+ }
+ if (!reference_map->is_a(HotSpotReferenceMap::klass())) {
+ JVMCI_ERROR_NULL("unknown reference map: %s", reference_map->klass()->signature_name());
+ }
+ if (HotSpotReferenceMap::maxRegisterSize(reference_map) > 16) {
+ _has_wide_vector = true;
+ }
+ OopMap* map = new OopMap(_total_frame_size, _parameter_count);
+ objArrayHandle objects(THREAD, HotSpotReferenceMap::objects(reference_map));
+ objArrayHandle derivedBase(THREAD, HotSpotReferenceMap::derivedBase(reference_map));
+ typeArrayHandle sizeInBytes(THREAD, HotSpotReferenceMap::sizeInBytes(reference_map));
+ if (objects.is_null() || derivedBase.is_null() || sizeInBytes.is_null()) {
+ THROW_NULL(vmSymbols::java_lang_NullPointerException());
+ }
+ if (objects->length() != derivedBase->length() || objects->length() != sizeInBytes->length()) {
+ JVMCI_ERROR_NULL("arrays in reference map have different sizes: %d %d %d", objects->length(), derivedBase->length(), sizeInBytes->length());
+ }
+ for (int i = 0; i < objects->length(); i++) {
+ Handle location(THREAD, objects->obj_at(i));
+ Handle baseLocation(THREAD, derivedBase->obj_at(i));
+ int bytes = sizeInBytes->int_at(i);
+
+ VMReg vmReg = getVMRegFromLocation(location, _total_frame_size, CHECK_NULL);
+ if (baseLocation.not_null()) {
+ // derived oop
+#ifdef _LP64
+ if (bytes == 8) {
+#else
+ if (bytes == 4) {
+#endif
+ VMReg baseReg = getVMRegFromLocation(baseLocation, _total_frame_size, CHECK_NULL);
+ map->set_derived_oop(vmReg, baseReg);
+ } else {
+ JVMCI_ERROR_NULL("invalid derived oop size in ReferenceMap: %d", bytes);
+ }
+#ifdef _LP64
+ } else if (bytes == 8) {
+ // wide oop
+ map->set_oop(vmReg);
+ } else if (bytes == 4) {
+ // narrow oop
+ map->set_narrowoop(vmReg);
+#else
+ } else if (bytes == 4) {
+ map->set_oop(vmReg);
+#endif
+ } else {
+ JVMCI_ERROR_NULL("invalid oop size in ReferenceMap: %d", bytes);
+ }
+ }
+
+ Handle callee_save_info(THREAD, (oop) DebugInfo::calleeSaveInfo(debug_info));
+ if (callee_save_info.not_null()) {
+ objArrayHandle registers(THREAD, RegisterSaveLayout::registers(callee_save_info));
+ typeArrayHandle slots(THREAD, RegisterSaveLayout::slots(callee_save_info));
+ for (jint i = 0; i < slots->length(); i++) {
+ Handle jvmci_reg (THREAD, registers->obj_at(i));
+ jint jvmci_reg_number = code_Register::number(jvmci_reg);
+ VMReg hotspot_reg = CodeInstaller::get_hotspot_reg(jvmci_reg_number, CHECK_NULL);
+ // HotSpot stack slots are 4 bytes
+ jint jvmci_slot = slots->int_at(i);
+ jint hotspot_slot = jvmci_slot * VMRegImpl::slots_per_word;
+ VMReg hotspot_slot_as_reg = VMRegImpl::stack2reg(hotspot_slot);
+ map->set_callee_saved(hotspot_slot_as_reg, hotspot_reg);
+#ifdef _LP64
+ // (copied from generate_oop_map() in c1_Runtime1_x86.cpp)
+ VMReg hotspot_slot_hi_as_reg = VMRegImpl::stack2reg(hotspot_slot + 1);
+ map->set_callee_saved(hotspot_slot_hi_as_reg, hotspot_reg->next());
+#endif
+ }
+ }
+ return map;
+}
+
+AOTOopRecorder::AOTOopRecorder(Arena* arena, bool deduplicate) : OopRecorder(arena, deduplicate) {
+ _meta_strings = new GrowableArray<const char*>();
+}
+
+int AOTOopRecorder::nr_meta_strings() const {
+ return _meta_strings->length();
+}
+
+const char* AOTOopRecorder::meta_element(int pos) const {
+ return _meta_strings->at(pos);
+}
+
+int AOTOopRecorder::find_index(Metadata* h) {
+ int index = this->OopRecorder::find_index(h);
+
+ Klass* klass = NULL;
+ if (h->is_klass()) {
+ klass = (Klass*) h;
+ record_meta_string(klass->signature_name(), index);
+ } else if (h->is_method()) {
+ Method* method = (Method*) h;
+ // Need klass->signature_name() in method name
+ klass = method->method_holder();
+ const char* klass_name = klass->signature_name();
+ int klass_name_len = (int)strlen(klass_name);
+ Symbol* method_name = method->name();
+ Symbol* signature = method->signature();
+ int method_name_len = method_name->utf8_length();
+ int method_sign_len = signature->utf8_length();
+ int len = klass_name_len + 1 + method_name_len + method_sign_len;
+ char* dest = NEW_RESOURCE_ARRAY(char, len + 1);
+ strcpy(dest, klass_name);
+ dest[klass_name_len] = '.';
+ strcpy(&dest[klass_name_len + 1], method_name->as_C_string());
+ strcpy(&dest[klass_name_len + 1 + method_name_len], signature->as_C_string());
+ dest[len] = 0;
+ record_meta_string(dest, index);
+ }
+
+ return index;
+}
+
+int AOTOopRecorder::find_index(jobject h) {
+ if (h == NULL) {
+ return 0;
+ }
+ oop javaMirror = JNIHandles::resolve(h);
+ Klass* klass = java_lang_Class::as_Klass(javaMirror);
+ return find_index(klass);
+}
+
+void AOTOopRecorder::record_meta_string(const char* name, int index) {
+ assert(index > 0, "must be 1..n");
+ index -= 1; // reduce by one to convert to array index
+
+ if (index < _meta_strings->length()) {
+ assert(strcmp(name, _meta_strings->at(index)) == 0, "must match");
+ } else {
+ assert(index == _meta_strings->length(), "must be last");
+ _meta_strings->append(name);
+ }
+}
+
+void* CodeInstaller::record_metadata_reference(CodeSection* section, address dest, Handle constant, TRAPS) {
+ /*
+ * This method needs to return a raw (untyped) pointer, since the value of a pointer to the base
+ * class is in general not equal to the pointer of the subclass. When patching metaspace pointers,
+ * the compiler expects a direct pointer to the subclass (Klass* or Method*), not a pointer to the
+ * base class (Metadata* or MetaspaceObj*).
+ */
+ oop obj = HotSpotMetaspaceConstantImpl::metaspaceObject(constant);
+ if (obj->is_a(HotSpotResolvedObjectTypeImpl::klass())) {
+ Klass* klass = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(obj));
+ assert(!HotSpotMetaspaceConstantImpl::compressed(constant), "unexpected compressed klass pointer %s @ " INTPTR_FORMAT, klass->name()->as_C_string(), p2i(klass));
+ int index = _oop_recorder->find_index(klass);
+ section->relocate(dest, metadata_Relocation::spec(index));
+ TRACE_jvmci_3("metadata[%d of %d] = %s", index, _oop_recorder->metadata_count(), klass->name()->as_C_string());
+ return klass;
+ } else if (obj->is_a(HotSpotResolvedJavaMethodImpl::klass())) {
+ Method* method = (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(obj);
+ assert(!HotSpotMetaspaceConstantImpl::compressed(constant), "unexpected compressed method pointer %s @ " INTPTR_FORMAT, method->name()->as_C_string(), p2i(method));
+ int index = _oop_recorder->find_index(method);
+ section->relocate(dest, metadata_Relocation::spec(index));
+ TRACE_jvmci_3("metadata[%d of %d] = %s", index, _oop_recorder->metadata_count(), method->name()->as_C_string());
+ return method;
+ } else {
+ JVMCI_ERROR_NULL("unexpected metadata reference for constant of type %s", obj->klass()->signature_name());
+ }
+}
+
+#ifdef _LP64
+narrowKlass CodeInstaller::record_narrow_metadata_reference(CodeSection* section, address dest, Handle constant, TRAPS) {
+ oop obj = HotSpotMetaspaceConstantImpl::metaspaceObject(constant);
+ assert(HotSpotMetaspaceConstantImpl::compressed(constant), "unexpected uncompressed pointer");
+
+ if (!obj->is_a(HotSpotResolvedObjectTypeImpl::klass())) {
+ JVMCI_ERROR_0("unexpected compressed pointer of type %s", obj->klass()->signature_name());
+ }
+
+ Klass* klass = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(obj));
+ int index = _oop_recorder->find_index(klass);
+ section->relocate(dest, metadata_Relocation::spec(index));
+ TRACE_jvmci_3("narrowKlass[%d of %d] = %s", index, _oop_recorder->metadata_count(), klass->name()->as_C_string());
+ return Klass::encode_klass(klass);
+}
+#endif
+
+Location::Type CodeInstaller::get_oop_type(Thread* thread, Handle value) {
+ Handle valueKind(thread, Value::valueKind(value));
+ Handle platformKind(thread, ValueKind::platformKind(valueKind));
+
+ if (platformKind == word_kind()) {
+ return Location::oop;
+ } else {
+ return Location::narrowoop;
+ }
+}
+
+ScopeValue* CodeInstaller::get_scope_value(Handle value, BasicType type, GrowableArray<ScopeValue*>* objects, ScopeValue* &second, TRAPS) {
+ second = NULL;
+ if (value.is_null()) {
+ THROW_NULL(vmSymbols::java_lang_NullPointerException());
+ } else if (value == Value::ILLEGAL()) {
+ if (type != T_ILLEGAL) {
+ JVMCI_ERROR_NULL("unexpected illegal value, expected %s", basictype_to_str(type));
+ }
+ return _illegal_value;
+ } else if (value->is_a(RegisterValue::klass())) {
+ Handle reg(THREAD, RegisterValue::reg(value));
+ jint number = code_Register::number(reg);
+ VMReg hotspotRegister = get_hotspot_reg(number, CHECK_NULL);
+ if (is_general_purpose_reg(hotspotRegister)) {
+ Location::Type locationType;
+ if (type == T_OBJECT) {
+ locationType = get_oop_type(THREAD, value);
+ } else if (type == T_LONG) {
+ locationType = Location::lng;
+ } else if (type == T_INT || type == T_FLOAT || type == T_SHORT || type == T_CHAR || type == T_BYTE || type == T_BOOLEAN) {
+ locationType = Location::int_in_long;
+ } else {
+ JVMCI_ERROR_NULL("unexpected type %s in cpu register", basictype_to_str(type));
+ }
+ ScopeValue* value = new LocationValue(Location::new_reg_loc(locationType, hotspotRegister));
+ if (type == T_LONG) {
+ second = value;
+ }
+ return value;
+ } else {
+ Location::Type locationType;
+ if (type == T_FLOAT) {
+ // this seems weird, but the same value is used in c1_LinearScan
+ locationType = Location::normal;
+ } else if (type == T_DOUBLE) {
+ locationType = Location::dbl;
+ } else {
+ JVMCI_ERROR_NULL("unexpected type %s in floating point register", basictype_to_str(type));
+ }
+ ScopeValue* value = new LocationValue(Location::new_reg_loc(locationType, hotspotRegister));
+ if (type == T_DOUBLE) {
+ second = value;
+ }
+ return value;
+ }
+ } else if (value->is_a(StackSlot::klass())) {
+ jint offset = StackSlot::offset(value);
+ if (StackSlot::addFrameSize(value)) {
+ offset += _total_frame_size;
+ }
+
+ Location::Type locationType;
+ if (type == T_OBJECT) {
+ locationType = get_oop_type(THREAD, value);
+ } else if (type == T_LONG) {
+ locationType = Location::lng;
+ } else if (type == T_DOUBLE) {
+ locationType = Location::dbl;
+ } else if (type == T_INT || type == T_FLOAT || type == T_SHORT || type == T_CHAR || type == T_BYTE || type == T_BOOLEAN) {
+ locationType = Location::normal;
+ } else {
+ JVMCI_ERROR_NULL("unexpected type %s in stack slot", basictype_to_str(type));
+ }
+ ScopeValue* value = new LocationValue(Location::new_stk_loc(locationType, offset));
+ if (type == T_DOUBLE || type == T_LONG) {
+ second = value;
+ }
+ return value;
+ } else if (value->is_a(JavaConstant::klass())) {
+ if (value->is_a(PrimitiveConstant::klass())) {
+ if (value->is_a(RawConstant::klass())) {
+ jlong prim = PrimitiveConstant::primitive(value);
+ return new ConstantLongValue(prim);
+ } else {
+ Handle primitive_constant_kind(THREAD, PrimitiveConstant::kind(value));
+ BasicType constantType = JVMCIRuntime::kindToBasicType(primitive_constant_kind, CHECK_NULL);
+ if (type != constantType) {
+ JVMCI_ERROR_NULL("primitive constant type doesn't match, expected %s but got %s", basictype_to_str(type), basictype_to_str(constantType));
+ }
+ if (type == T_INT || type == T_FLOAT) {
+ jint prim = (jint)PrimitiveConstant::primitive(value);
+ switch (prim) {
+ case -1: return _int_m1_scope_value;
+ case 0: return _int_0_scope_value;
+ case 1: return _int_1_scope_value;
+ case 2: return _int_2_scope_value;
+ default: return new ConstantIntValue(prim);
+ }
+ } else if (type == T_LONG || type == T_DOUBLE) {
+ jlong prim = PrimitiveConstant::primitive(value);
+ second = _int_1_scope_value;
+ return new ConstantLongValue(prim);
+ } else {
+ JVMCI_ERROR_NULL("unexpected primitive constant type %s", basictype_to_str(type));
+ }
+ }
+ } else if (value->is_a(NullConstant::klass()) || value->is_a(HotSpotCompressedNullConstant::klass())) {
+ if (type == T_OBJECT) {
+ return _oop_null_scope_value;
+ } else {
+ JVMCI_ERROR_NULL("unexpected null constant, expected %s", basictype_to_str(type));
+ }
+ } else if (value->is_a(HotSpotObjectConstantImpl::klass())) {
+ if (type == T_OBJECT) {
+ oop obj = HotSpotObjectConstantImpl::object(value);
+ if (obj == NULL) {
+ JVMCI_ERROR_NULL("null value must be in NullConstant");
+ }
+ return new ConstantOopWriteValue(JNIHandles::make_local(obj));
+ } else {
+ JVMCI_ERROR_NULL("unexpected object constant, expected %s", basictype_to_str(type));
+ }
+ }
+ } else if (value->is_a(VirtualObject::klass())) {
+ if (type == T_OBJECT) {
+ int id = VirtualObject::id(value);
+ if (0 <= id && id < objects->length()) {
+ ScopeValue* object = objects->at(id);
+ if (object != NULL) {
+ return object;
+ }
+ }
+ JVMCI_ERROR_NULL("unknown virtual object id %d", id);
+ } else {
+ JVMCI_ERROR_NULL("unexpected virtual object, expected %s", basictype_to_str(type));
+ }
+ }
+
+ JVMCI_ERROR_NULL("unexpected value in scope: %s", value->klass()->signature_name())
+}
+
+void CodeInstaller::record_object_value(ObjectValue* sv, Handle value, GrowableArray<ScopeValue*>* objects, TRAPS) {
+ // Might want a HandleMark here.
+ Handle type(THREAD, VirtualObject::type(value));
+ int id = VirtualObject::id(value);
+ oop javaMirror = HotSpotResolvedObjectTypeImpl::javaClass(type);
+ Klass* klass = java_lang_Class::as_Klass(javaMirror);
+ bool isLongArray = klass == Universe::longArrayKlassObj();
+
+ objArrayHandle values(THREAD, VirtualObject::values(value));
+ objArrayHandle slotKinds(THREAD, VirtualObject::slotKinds(value));
+ for (jint i = 0; i < values->length(); i++) {
+ HandleMark hm(THREAD);
+ ScopeValue* cur_second = NULL;
+ Handle object(THREAD, values->obj_at(i));
+ Handle slot_kind (THREAD, slotKinds->obj_at(i));
+ BasicType type = JVMCIRuntime::kindToBasicType(slot_kind, CHECK);
+ ScopeValue* value = get_scope_value(object, type, objects, cur_second, CHECK);
+
+ if (isLongArray && cur_second == NULL) {
+ // we're trying to put ints into a long array... this isn't really valid, but it's used for some optimizations.
+ // add an int 0 constant
+ cur_second = _int_0_scope_value;
+ }
+
+ if (cur_second != NULL) {
+ sv->field_values()->append(cur_second);
+ }
+ assert(value != NULL, "missing value");
+ sv->field_values()->append(value);
+ }
+}
+
+MonitorValue* CodeInstaller::get_monitor_value(Handle value, GrowableArray<ScopeValue*>* objects, TRAPS) {
+ if (value.is_null()) {
+ THROW_NULL(vmSymbols::java_lang_NullPointerException());
+ }
+ if (!value->is_a(StackLockValue::klass())) {
+ JVMCI_ERROR_NULL("Monitors must be of type StackLockValue, got %s", value->klass()->signature_name());
+ }
+
+ ScopeValue* second = NULL;
+ Handle stack_lock_owner(THREAD, StackLockValue::owner(value));
+ ScopeValue* owner_value = get_scope_value(stack_lock_owner, T_OBJECT, objects, second, CHECK_NULL);
+ assert(second == NULL, "monitor cannot occupy two stack slots");
+
+ Handle stack_lock_slot(THREAD, StackLockValue::slot(value));
+ ScopeValue* lock_data_value = get_scope_value(stack_lock_slot, T_LONG, objects, second, CHECK_NULL);
+ assert(second == lock_data_value, "monitor is LONG value that occupies two stack slots");
+ assert(lock_data_value->is_location(), "invalid monitor location");
+ Location lock_data_loc = ((LocationValue*)lock_data_value)->location();
+
+ bool eliminated = false;
+ if (StackLockValue::eliminated(value)) {
+ eliminated = true;
+ }
+
+ return new MonitorValue(owner_value, lock_data_loc, eliminated);
+}
+
+void CodeInstaller::initialize_dependencies(oop compiled_code, OopRecorder* recorder, TRAPS) {
+ JavaThread* thread = JavaThread::current();
+ assert(THREAD == thread, "");
+ CompilerThread* compilerThread = thread->is_Compiler_thread() ? thread->as_CompilerThread() : NULL;
+ _oop_recorder = recorder;
+ _dependencies = new Dependencies(&_arena, _oop_recorder, compilerThread != NULL ? compilerThread->log() : NULL);
+ objArrayHandle assumptions(THREAD, HotSpotCompiledCode::assumptions(compiled_code));
+ if (!assumptions.is_null()) {
+ int length = assumptions->length();
+ for (int i = 0; i < length; ++i) {
+ Handle assumption(THREAD, assumptions->obj_at(i));
+ if (!assumption.is_null()) {
+ if (assumption->klass() == Assumptions_NoFinalizableSubclass::klass()) {
+ assumption_NoFinalizableSubclass(THREAD, assumption);
+ } else if (assumption->klass() == Assumptions_ConcreteSubtype::klass()) {
+ assumption_ConcreteSubtype(THREAD, assumption);
+ } else if (assumption->klass() == Assumptions_LeafType::klass()) {
+ assumption_LeafType(THREAD, assumption);
+ } else if (assumption->klass() == Assumptions_ConcreteMethod::klass()) {
+ assumption_ConcreteMethod(THREAD, assumption);
+ } else if (assumption->klass() == Assumptions_CallSiteTargetValue::klass()) {
+ assumption_CallSiteTargetValue(THREAD, assumption);
+ } else {
+ JVMCI_ERROR("unexpected Assumption subclass %s", assumption->klass()->signature_name());
+ }
+ }
+ }
+ }
+ if (JvmtiExport::can_hotswap_or_post_breakpoint()) {
+ objArrayHandle methods(THREAD, HotSpotCompiledCode::methods(compiled_code));
+ if (!methods.is_null()) {
+ int length = methods->length();
+ for (int i = 0; i < length; ++i) {
+ Handle method_handle(THREAD, methods->obj_at(i));
+ methodHandle method = getMethodFromHotSpotMethod(method_handle());
+ _dependencies->assert_evol_method(method());
+ }
+ }
+ }
+}
+
+RelocBuffer::~RelocBuffer() {
+ if (_buffer != NULL) {
+ FREE_C_HEAP_ARRAY(char, _buffer);
+ }
+}
+
+address RelocBuffer::begin() const {
+ if (_buffer != NULL) {
+ return (address) _buffer;
+ }
+ return (address) _static_buffer;
+}
+
+void RelocBuffer::set_size(size_t bytes) {
+ assert(bytes <= _size, "can't grow in size!");
+ _size = bytes;
+}
+
+void RelocBuffer::ensure_size(size_t bytes) {
+ assert(_buffer == NULL, "can only be used once");
+ assert(_size == 0, "can only be used once");
+ if (bytes >= RelocBuffer::stack_size) {
+ _buffer = NEW_C_HEAP_ARRAY(char, bytes, mtInternal);
+ }
+ _size = bytes;
+}
+
+JVMCIEnv::CodeInstallResult CodeInstaller::gather_metadata(Handle target, Handle compiled_code, CodeMetadata& metadata, TRAPS) {
+ CodeBuffer buffer("JVMCI Compiler CodeBuffer for Metadata");
+ jobject compiled_code_obj = JNIHandles::make_local(compiled_code());
+ AOTOopRecorder* recorder = new AOTOopRecorder(&_arena, true);
+ initialize_dependencies(JNIHandles::resolve(compiled_code_obj), recorder, CHECK_OK);
+
+ metadata.set_oop_recorder(recorder);
+
+ // Get instructions and constants CodeSections early because we need it.
+ _instructions = buffer.insts();
+ _constants = buffer.consts();
+
+ initialize_fields(target(), JNIHandles::resolve(compiled_code_obj), CHECK_OK);
+ JVMCIEnv::CodeInstallResult result = initialize_buffer(buffer, false, CHECK_OK);
+ if (result != JVMCIEnv::ok) {
+ return result;
+ }
+
+ _debug_recorder->pcs_size(); // create the sentinel record
+
+ assert(_debug_recorder->pcs_length() >= 2, "must be at least 2");
+
+ metadata.set_pc_desc(_debug_recorder->pcs(), _debug_recorder->pcs_length());
+ metadata.set_scopes(_debug_recorder->stream()->buffer(), _debug_recorder->data_size());
+ metadata.set_exception_table(&_exception_handler_table);
+
+ RelocBuffer* reloc_buffer = metadata.get_reloc_buffer();
+
+ reloc_buffer->ensure_size(buffer.total_relocation_size());
+ size_t size = (size_t) buffer.copy_relocations_to(reloc_buffer->begin(), (CodeBuffer::csize_t) reloc_buffer->size(), true);
+ reloc_buffer->set_size(size);
+ return JVMCIEnv::ok;
+}
+
+// constructor used to create a method
+JVMCIEnv::CodeInstallResult CodeInstaller::install(JVMCICompiler* compiler, Handle target, Handle compiled_code, CodeBlob*& cb, Handle installed_code, Handle speculation_log, TRAPS) {
+ CodeBuffer buffer("JVMCI Compiler CodeBuffer");
+ jobject compiled_code_obj = JNIHandles::make_local(compiled_code());
+ OopRecorder* recorder = new OopRecorder(&_arena, true);
+ initialize_dependencies(JNIHandles::resolve(compiled_code_obj), recorder, CHECK_OK);
+
+ // Get instructions and constants CodeSections early because we need it.
+ _instructions = buffer.insts();
+ _constants = buffer.consts();
+
+ initialize_fields(target(), JNIHandles::resolve(compiled_code_obj), CHECK_OK);
+ JVMCIEnv::CodeInstallResult result = initialize_buffer(buffer, true, CHECK_OK);
+ if (result != JVMCIEnv::ok) {
+ return result;
+ }
+
+ int stack_slots = _total_frame_size / HeapWordSize; // conversion to words
+
+ if (!compiled_code->is_a(HotSpotCompiledNmethod::klass())) {
+ oop stubName = HotSpotCompiledCode::name(compiled_code_obj);
+ char* name = strdup(java_lang_String::as_utf8_string(stubName));
+ cb = RuntimeStub::new_runtime_stub(name,
+ &buffer,
+ CodeOffsets::frame_never_safe,
+ stack_slots,
+ _debug_recorder->_oopmaps,
+ false);
+ result = JVMCIEnv::ok;
+ } else {
+ nmethod* nm = NULL;
+ methodHandle method = getMethodFromHotSpotMethod(HotSpotCompiledNmethod::method(compiled_code));
+ jint entry_bci = HotSpotCompiledNmethod::entryBCI(compiled_code);
+ jint id = HotSpotCompiledNmethod::id(compiled_code);
+ bool has_unsafe_access = HotSpotCompiledNmethod::hasUnsafeAccess(compiled_code) == JNI_TRUE;
+ JVMCIEnv* env = (JVMCIEnv*) (address) HotSpotCompiledNmethod::jvmciEnv(compiled_code);
+ if (id == -1) {
+ // Make sure a valid compile_id is associated with every compile
+ id = CompileBroker::assign_compile_id_unlocked(Thread::current(), method, entry_bci);
+ }
+ result = JVMCIEnv::register_method(method, nm, entry_bci, &_offsets, _orig_pc_offset, &buffer,
+ stack_slots, _debug_recorder->_oopmaps, &_exception_handler_table,
+ compiler, _debug_recorder, _dependencies, env, id,
+ has_unsafe_access, _has_wide_vector, installed_code, compiled_code, speculation_log);
+ cb = nm->as_codeblob_or_null();
+ if (nm != NULL && env == NULL) {
+ DirectiveSet* directive = DirectivesStack::getMatchingDirective(method, compiler);
+ bool printnmethods = directive->PrintAssemblyOption || directive->PrintNMethodsOption;
+ if (!printnmethods && (PrintDebugInfo || PrintRelocations || PrintDependencies || PrintExceptionHandlers)) {
+ nm->print_nmethod(printnmethods);
+ }
+ DirectivesStack::release(directive);
+ }
+ }
+
+ if (cb != NULL) {
+ // Make sure the pre-calculated constants section size was correct.
+ guarantee((cb->code_begin() - cb->content_begin()) >= _constants_size, "%d < %d", (int)(cb->code_begin() - cb->content_begin()), _constants_size);
+ }
+ return result;
+}
+
+void CodeInstaller::initialize_fields(oop target, oop compiled_code, TRAPS) {
+ if (compiled_code->is_a(HotSpotCompiledNmethod::klass())) {
+ Handle hotspotJavaMethod(THREAD, HotSpotCompiledNmethod::method(compiled_code));
+ methodHandle method = getMethodFromHotSpotMethod(hotspotJavaMethod());
+ _parameter_count = method->size_of_parameters();
+ TRACE_jvmci_2("installing code for %s", method->name_and_sig_as_C_string());
+ } else {
+ // Must be a HotSpotCompiledRuntimeStub.
+ // Only used in OopMap constructor for non-product builds
+ _parameter_count = 0;
+ }
+ _sites_handle = JNIHandles::make_local(HotSpotCompiledCode::sites(compiled_code));
+
+ _code_handle = JNIHandles::make_local(HotSpotCompiledCode::targetCode(compiled_code));
+ _code_size = HotSpotCompiledCode::targetCodeSize(compiled_code);
+ _total_frame_size = HotSpotCompiledCode::totalFrameSize(compiled_code);
+
+ oop deoptRescueSlot = HotSpotCompiledCode::deoptRescueSlot(compiled_code);
+ if (deoptRescueSlot == NULL) {
+ _orig_pc_offset = -1;
+ } else {
+ _orig_pc_offset = StackSlot::offset(deoptRescueSlot);
+ if (StackSlot::addFrameSize(deoptRescueSlot)) {
+ _orig_pc_offset += _total_frame_size;
+ }
+ if (_orig_pc_offset < 0) {
+ JVMCI_ERROR("invalid deopt rescue slot: %d", _orig_pc_offset);
+ }
+ }
+
+ // Pre-calculate the constants section size. This is required for PC-relative addressing.
+ _data_section_handle = JNIHandles::make_local(HotSpotCompiledCode::dataSection(compiled_code));
+ if ((_constants->alignment() % HotSpotCompiledCode::dataSectionAlignment(compiled_code)) != 0) {
+ JVMCI_ERROR("invalid data section alignment: %d", HotSpotCompiledCode::dataSectionAlignment(compiled_code));
+ }
+ _constants_size = data_section()->length();
+
+ _data_section_patches_handle = JNIHandles::make_local(HotSpotCompiledCode::dataSectionPatches(compiled_code));
+
+#ifndef PRODUCT
+ _comments_handle = JNIHandles::make_local(HotSpotCompiledCode::comments(compiled_code));
+#endif
+
+ _next_call_type = INVOKE_INVALID;
+
+ _has_wide_vector = false;
+
+ oop arch = TargetDescription::arch(target);
+ _word_kind_handle = JNIHandles::make_local(Architecture::wordKind(arch));
+}
+
+int CodeInstaller::estimate_stubs_size(TRAPS) {
+ // Estimate the number of static and aot call stubs that might be emitted.
+ int static_call_stubs = 0;
+ int aot_call_stubs = 0;
+ objArrayOop sites = this->sites();
+ for (int i = 0; i < sites->length(); i++) {
+ oop site = sites->obj_at(i);
+ if (site != NULL) {
+ if (site->is_a(site_Mark::klass())) {
+ oop id_obj = site_Mark::id(site);
+ if (id_obj != NULL) {
+ if (!java_lang_boxing_object::is_instance(id_obj, T_INT)) {
+ JVMCI_ERROR_0("expected Integer id, got %s", id_obj->klass()->signature_name());
+ }
+ jint id = id_obj->int_field(java_lang_boxing_object::value_offset_in_bytes(T_INT));
+ if (id == INVOKESTATIC || id == INVOKESPECIAL) {
+ static_call_stubs++;
+ }
+ }
+ }
+ if (UseAOT && site->is_a(site_Call::klass())) {
+ oop target = site_Call::target(site);
+ InstanceKlass* target_klass = InstanceKlass::cast(target->klass());
+ if (!target_klass->is_subclass_of(SystemDictionary::HotSpotForeignCallTarget_klass())) {
+ // Add far aot trampolines.
+ aot_call_stubs++;
+ }
+ }
+ }
+ }
+ int size = static_call_stubs * CompiledStaticCall::to_interp_stub_size();
+#if INCLUDE_AOT
+ size += aot_call_stubs * CompiledStaticCall::to_aot_stub_size();
+#endif
+ return size;
+}
+
+// perform data and call relocation on the CodeBuffer
+JVMCIEnv::CodeInstallResult CodeInstaller::initialize_buffer(CodeBuffer& buffer, bool check_size, TRAPS) {
+ HandleMark hm;
+ objArrayHandle sites(THREAD, this->sites());
+ int locs_buffer_size = sites->length() * (relocInfo::length_limit + sizeof(relocInfo));
+
+ // Allocate enough space in the stub section for the static call
+ // stubs. Stubs have extra relocs but they are managed by the stub
+ // section itself so they don't need to be accounted for in the
+ // locs_buffer above.
+ int stubs_size = estimate_stubs_size(CHECK_OK);
+ int total_size = align_up(_code_size, buffer.insts()->alignment()) + align_up(_constants_size, buffer.consts()->alignment()) + align_up(stubs_size, buffer.stubs()->alignment());
+
+ if (check_size && total_size > JVMCINMethodSizeLimit) {
+ return JVMCIEnv::code_too_large;
+ }
+
+ buffer.initialize(total_size, locs_buffer_size);
+ if (buffer.blob() == NULL) {
+ return JVMCIEnv::cache_full;
+ }
+ buffer.initialize_stubs_size(stubs_size);
+ buffer.initialize_consts_size(_constants_size);
+
+ _debug_recorder = new DebugInformationRecorder(_oop_recorder);
+ _debug_recorder->set_oopmaps(new OopMapSet());
+
+ buffer.initialize_oop_recorder(_oop_recorder);
+
+ // copy the constant data into the newly created CodeBuffer
+ address end_data = _constants->start() + _constants_size;
+ memcpy(_constants->start(), data_section()->base(T_BYTE), _constants_size);
+ _constants->set_end(end_data);
+
+ // copy the code into the newly created CodeBuffer
+ address end_pc = _instructions->start() + _code_size;
+ guarantee(_instructions->allocates2(end_pc), "initialize should have reserved enough space for all the code");
+ memcpy(_instructions->start(), code()->base(T_BYTE), _code_size);
+ _instructions->set_end(end_pc);
+
+ for (int i = 0; i < data_section_patches()->length(); i++) {
+ HandleMark hm(THREAD);
+ Handle patch(THREAD, data_section_patches()->obj_at(i));
+ if (patch.is_null()) {
+ THROW_(vmSymbols::java_lang_NullPointerException(), JVMCIEnv::ok);
+ }
+ Handle reference(THREAD, site_DataPatch::reference(patch));
+ if (reference.is_null()) {
+ THROW_(vmSymbols::java_lang_NullPointerException(), JVMCIEnv::ok);
+ }
+ if (!reference->is_a(site_ConstantReference::klass())) {
+ JVMCI_ERROR_OK("invalid patch in data section: %s", reference->klass()->signature_name());
+ }
+ Handle constant(THREAD, site_ConstantReference::constant(reference));
+ if (constant.is_null()) {
+ THROW_(vmSymbols::java_lang_NullPointerException(), JVMCIEnv::ok);
+ }
+ address dest = _constants->start() + site_Site::pcOffset(patch);
+ if (constant->is_a(HotSpotMetaspaceConstantImpl::klass())) {
+ if (HotSpotMetaspaceConstantImpl::compressed(constant)) {
+#ifdef _LP64
+ *((narrowKlass*) dest) = record_narrow_metadata_reference(_constants, dest, constant, CHECK_OK);
+#else
+ JVMCI_ERROR_OK("unexpected compressed Klass* in 32-bit mode");
+#endif
+ } else {
+ *((void**) dest) = record_metadata_reference(_constants, dest, constant, CHECK_OK);
+ }
+ } else if (constant->is_a(HotSpotObjectConstantImpl::klass())) {
+ Handle obj(THREAD, HotSpotObjectConstantImpl::object(constant));
+ jobject value = JNIHandles::make_local(obj());
+ int oop_index = _oop_recorder->find_index(value);
+
+ if (HotSpotObjectConstantImpl::compressed(constant)) {
+#ifdef _LP64
+ _constants->relocate(dest, oop_Relocation::spec(oop_index), relocInfo::narrow_oop_in_const);
+#else
+ JVMCI_ERROR_OK("unexpected compressed oop in 32-bit mode");
+#endif
+ } else {
+ _constants->relocate(dest, oop_Relocation::spec(oop_index));
+ }
+ } else {
+ JVMCI_ERROR_OK("invalid constant in data section: %s", constant->klass()->signature_name());
+ }
+ }
+ jint last_pc_offset = -1;
+ for (int i = 0; i < sites->length(); i++) {
+ HandleMark hm(THREAD);
+ Handle site(THREAD, sites->obj_at(i));
+ if (site.is_null()) {
+ THROW_(vmSymbols::java_lang_NullPointerException(), JVMCIEnv::ok);
+ }
+
+ jint pc_offset = site_Site::pcOffset(site);
+
+ if (site->is_a(site_Call::klass())) {
+ TRACE_jvmci_4("call at %i", pc_offset);
+ site_Call(buffer, pc_offset, site, CHECK_OK);
+ } else if (site->is_a(site_Infopoint::klass())) {
+ // three reasons for infopoints denote actual safepoints
+ oop reason = site_Infopoint::reason(site);
+ if (site_InfopointReason::SAFEPOINT() == reason || site_InfopointReason::CALL() == reason || site_InfopointReason::IMPLICIT_EXCEPTION() == reason) {
+ TRACE_jvmci_4("safepoint at %i", pc_offset);
+ site_Safepoint(buffer, pc_offset, site, CHECK_OK);
+ if (_orig_pc_offset < 0) {
+ JVMCI_ERROR_OK("method contains safepoint, but has no deopt rescue slot");
+ }
+ } else {
+ TRACE_jvmci_4("infopoint at %i", pc_offset);
+ site_Infopoint(buffer, pc_offset, site, CHECK_OK);
+ }
+ } else if (site->is_a(site_DataPatch::klass())) {
+ TRACE_jvmci_4("datapatch at %i", pc_offset);
+ site_DataPatch(buffer, pc_offset, site, CHECK_OK);
+ } else if (site->is_a(site_Mark::klass())) {
+ TRACE_jvmci_4("mark at %i", pc_offset);
+ site_Mark(buffer, pc_offset, site, CHECK_OK);
+ } else if (site->is_a(site_ExceptionHandler::klass())) {
+ TRACE_jvmci_4("exceptionhandler at %i", pc_offset);
+ site_ExceptionHandler(pc_offset, site);
+ } else {
+ JVMCI_ERROR_OK("unexpected site subclass: %s", site->klass()->signature_name());
+ }
+ last_pc_offset = pc_offset;
+
+ if (SafepointSynchronize::do_call_back()) {
+ // this is a hacky way to force a safepoint check but nothing else was jumping out at me.
+ ThreadToNativeFromVM ttnfv(JavaThread::current());
+ }
+ }
+
+#ifndef PRODUCT
+ if (comments() != NULL) {
+ for (int i = 0; i < comments()->length(); i++) {
+ oop comment = comments()->obj_at(i);
+ assert(comment->is_a(HotSpotCompiledCode_Comment::klass()), "cce");
+ jint offset = HotSpotCompiledCode_Comment::pcOffset(comment);
+ char* text = java_lang_String::as_utf8_string(HotSpotCompiledCode_Comment::text(comment));
+ buffer.block_comment(offset, text);
+ }
+ }
+#endif
+ return JVMCIEnv::ok;
+}
+
+void CodeInstaller::assumption_NoFinalizableSubclass(Thread* thread, Handle assumption) {
+ Handle receiverType_handle (thread, Assumptions_NoFinalizableSubclass::receiverType(assumption()));
+ Klass* receiverType = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(receiverType_handle));
+ _dependencies->assert_has_no_finalizable_subclasses(receiverType);
+}
+
+void CodeInstaller::assumption_ConcreteSubtype(Thread* thread, Handle assumption) {
+ Handle context_handle (thread, Assumptions_ConcreteSubtype::context(assumption()));
+ Handle subtype_handle (thread, Assumptions_ConcreteSubtype::subtype(assumption()));
+ Klass* context = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(context_handle));
+ Klass* subtype = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(subtype_handle));
+
+ assert(context->is_abstract(), "");
+ _dependencies->assert_abstract_with_unique_concrete_subtype(context, subtype);
+}
+
+void CodeInstaller::assumption_LeafType(Thread* thread, Handle assumption) {
+ Handle context_handle (thread, Assumptions_LeafType::context(assumption()));
+ Klass* context = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(context_handle));
+
+ _dependencies->assert_leaf_type(context);
+}
+
+void CodeInstaller::assumption_ConcreteMethod(Thread* thread, Handle assumption) {
+ Handle impl_handle (thread, Assumptions_ConcreteMethod::impl(assumption()));
+ Handle context_handle (thread, Assumptions_ConcreteMethod::context(assumption()));
+
+ methodHandle impl = getMethodFromHotSpotMethod(impl_handle());
+ Klass* context = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(context_handle));
+
+ _dependencies->assert_unique_concrete_method(context, impl());
+}
+
+void CodeInstaller::assumption_CallSiteTargetValue(Thread* thread, Handle assumption) {
+ Handle callSite(thread, Assumptions_CallSiteTargetValue::callSite(assumption()));
+ Handle methodHandle(thread, Assumptions_CallSiteTargetValue::methodHandle(assumption()));
+
+ _dependencies->assert_call_site_target_value(callSite(), methodHandle());
+}
+
+void CodeInstaller::site_ExceptionHandler(jint pc_offset, Handle exc) {
+ jint handler_offset = site_ExceptionHandler::handlerPos(exc);
+
+ // Subtable header
+ _exception_handler_table.add_entry(HandlerTableEntry(1, pc_offset, 0));
+
+ // Subtable entry
+ _exception_handler_table.add_entry(HandlerTableEntry(-1, handler_offset, 0));
+}
+
+// If deoptimization happens, the interpreter should reexecute these bytecodes.
+// This function mainly helps the compilers to set up the reexecute bit.
+static bool bytecode_should_reexecute(Bytecodes::Code code) {
+ switch (code) {
+ case Bytecodes::_invokedynamic:
+ case Bytecodes::_invokevirtual:
+ case Bytecodes::_invokeinterface:
+ case Bytecodes::_invokespecial:
+ case Bytecodes::_invokestatic:
+ return false;
+ default:
+ return true;
+ }
+ return true;
+}
+
+GrowableArray<ScopeValue*>* CodeInstaller::record_virtual_objects(Handle debug_info, TRAPS) {
+ objArrayHandle virtualObjects(THREAD, DebugInfo::virtualObjectMapping(debug_info));
+ if (virtualObjects.is_null()) {
+ return NULL;
+ }
+ GrowableArray<ScopeValue*>* objects = new GrowableArray<ScopeValue*>(virtualObjects->length(), virtualObjects->length(), NULL);
+ // Create the unique ObjectValues
+ for (int i = 0; i < virtualObjects->length(); i++) {
+ HandleMark hm(THREAD);
+ Handle value(THREAD, virtualObjects->obj_at(i));
+ int id = VirtualObject::id(value);
+ Handle type(THREAD, VirtualObject::type(value));
+ oop javaMirror = HotSpotResolvedObjectTypeImpl::javaClass(type);
+ ObjectValue* sv = new ObjectValue(id, new ConstantOopWriteValue(JNIHandles::make_local(Thread::current(), javaMirror)));
+ if (id < 0 || id >= objects->length()) {
+ JVMCI_ERROR_NULL("virtual object id %d out of bounds", id);
+ }
+ if (objects->at(id) != NULL) {
+ JVMCI_ERROR_NULL("duplicate virtual object id %d", id);
+ }
+ objects->at_put(id, sv);
+ }
+ // All the values which could be referenced by the VirtualObjects
+ // exist, so now describe all the VirtualObjects themselves.
+ for (int i = 0; i < virtualObjects->length(); i++) {
+ HandleMark hm(THREAD);
+ Handle value(THREAD, virtualObjects->obj_at(i));
+ int id = VirtualObject::id(value);
+ record_object_value(objects->at(id)->as_ObjectValue(), value, objects, CHECK_NULL);
+ }
+ _debug_recorder->dump_object_pool(objects);
+ return objects;
+}
+
+void CodeInstaller::record_scope(jint pc_offset, Handle debug_info, ScopeMode scope_mode, bool return_oop, TRAPS) {
+ Handle position(THREAD, DebugInfo::bytecodePosition(debug_info));
+ if (position.is_null()) {
+ // Stubs do not record scope info, just oop maps
+ return;
+ }
+
+ GrowableArray<ScopeValue*>* objectMapping;
+ if (scope_mode == CodeInstaller::FullFrame) {
+ objectMapping = record_virtual_objects(debug_info, CHECK);
+ } else {
+ objectMapping = NULL;
+ }
+ record_scope(pc_offset, position, scope_mode, objectMapping, return_oop, CHECK);
+}
+
+void CodeInstaller::record_scope(jint pc_offset, Handle position, ScopeMode scope_mode, GrowableArray<ScopeValue*>* objects, bool return_oop, TRAPS) {
+ Handle frame;
+ if (scope_mode == CodeInstaller::FullFrame) {
+ if (!position->is_a(BytecodeFrame::klass())) {
+ JVMCI_ERROR("Full frame expected for debug info at %i", pc_offset);
+ }
+ frame = position;
+ }
+ Handle caller_frame (THREAD, BytecodePosition::caller(position));
+ if (caller_frame.not_null()) {
+ record_scope(pc_offset, caller_frame, scope_mode, objects, return_oop, CHECK);
+ }
+
+ Handle hotspot_method (THREAD, BytecodePosition::method(position));
+ Method* method = getMethodFromHotSpotMethod(hotspot_method());
+ jint bci = BytecodePosition::bci(position);
+ if (bci == BytecodeFrame::BEFORE_BCI()) {
+ bci = SynchronizationEntryBCI;
+ }
+
+ TRACE_jvmci_2("Recording scope pc_offset=%d bci=%d method=%s", pc_offset, bci, method->name_and_sig_as_C_string());
+
+ bool reexecute = false;
+ if (frame.not_null()) {
+ if (bci == SynchronizationEntryBCI){
+ reexecute = false;
+ } else {
+ Bytecodes::Code code = Bytecodes::java_code_at(method, method->bcp_from(bci));
+ reexecute = bytecode_should_reexecute(code);
+ if (frame.not_null()) {
+ reexecute = (BytecodeFrame::duringCall(frame) == JNI_FALSE);
+ }
+ }
+ }
+
+ DebugToken* locals_token = NULL;
+ DebugToken* expressions_token = NULL;
+ DebugToken* monitors_token = NULL;
+ bool throw_exception = false;
+
+ if (frame.not_null()) {
+ jint local_count = BytecodeFrame::numLocals(frame);
+ jint expression_count = BytecodeFrame::numStack(frame);
+ jint monitor_count = BytecodeFrame::numLocks(frame);
+ objArrayHandle values(THREAD, BytecodeFrame::values(frame));
+ objArrayHandle slotKinds(THREAD, BytecodeFrame::slotKinds(frame));
+
+ if (values.is_null() || slotKinds.is_null()) {
+ THROW(vmSymbols::java_lang_NullPointerException());
+ }
+ if (local_count + expression_count + monitor_count != values->length()) {
+ JVMCI_ERROR("unexpected values length %d in scope (%d locals, %d expressions, %d monitors)", values->length(), local_count, expression_count, monitor_count);
+ }
+ if (local_count + expression_count != slotKinds->length()) {
+ JVMCI_ERROR("unexpected slotKinds length %d in scope (%d locals, %d expressions)", slotKinds->length(), local_count, expression_count);
+ }
+
+ GrowableArray<ScopeValue*>* locals = local_count > 0 ? new GrowableArray<ScopeValue*> (local_count) : NULL;
+ GrowableArray<ScopeValue*>* expressions = expression_count > 0 ? new GrowableArray<ScopeValue*> (expression_count) : NULL;
+ GrowableArray<MonitorValue*>* monitors = monitor_count > 0 ? new GrowableArray<MonitorValue*> (monitor_count) : NULL;
+
+ TRACE_jvmci_2("Scope at bci %d with %d values", bci, values->length());
+ TRACE_jvmci_2("%d locals %d expressions, %d monitors", local_count, expression_count, monitor_count);
+
+ for (jint i = 0; i < values->length(); i++) {
+ HandleMark hm(THREAD);
+ ScopeValue* second = NULL;
+ Handle value(THREAD, values->obj_at(i));
+ if (i < local_count) {
+ BasicType type = JVMCIRuntime::kindToBasicType(Handle(THREAD, slotKinds->obj_at(i)), CHECK);
+ ScopeValue* first = get_scope_value(value, type, objects, second, CHECK);
+ if (second != NULL) {
+ locals->append(second);
+ }
+ locals->append(first);
+ } else if (i < local_count + expression_count) {
+ BasicType type = JVMCIRuntime::kindToBasicType(Handle(THREAD, slotKinds->obj_at(i)), CHECK);
+ ScopeValue* first = get_scope_value(value, type, objects, second, CHECK);
+ if (second != NULL) {
+ expressions->append(second);
+ }
+ expressions->append(first);
+ } else {
+ MonitorValue *monitor = get_monitor_value(value, objects, CHECK);
+ monitors->append(monitor);
+ }
+ if (second != NULL) {
+ i++;
+ if (i >= values->length() || values->obj_at(i) != Value::ILLEGAL()) {
+ JVMCI_ERROR("double-slot value not followed by Value.ILLEGAL");
+ }
+ }
+ }
+
+ locals_token = _debug_recorder->create_scope_values(locals);
+ expressions_token = _debug_recorder->create_scope_values(expressions);
+ monitors_token = _debug_recorder->create_monitor_values(monitors);
+
+ throw_exception = BytecodeFrame::rethrowException(frame) == JNI_TRUE;
+ }
+
+ _debug_recorder->describe_scope(pc_offset, method, NULL, bci, reexecute, throw_exception, false, return_oop,
+ locals_token, expressions_token, monitors_token);
+}
+
+void CodeInstaller::site_Safepoint(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS) {
+ Handle debug_info (THREAD, site_Infopoint::debugInfo(site));
+ if (debug_info.is_null()) {
+ JVMCI_ERROR("debug info expected at safepoint at %i", pc_offset);
+ }
+
+ // address instruction = _instructions->start() + pc_offset;
+ // jint next_pc_offset = Assembler::locate_next_instruction(instruction) - _instructions->start();
+ OopMap *map = create_oop_map(debug_info, CHECK);
+ _debug_recorder->add_safepoint(pc_offset, map);
+ record_scope(pc_offset, debug_info, CodeInstaller::FullFrame, CHECK);
+ _debug_recorder->end_safepoint(pc_offset);
+}
+
+void CodeInstaller::site_Infopoint(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS) {
+ Handle debug_info (THREAD, site_Infopoint::debugInfo(site));
+ if (debug_info.is_null()) {
+ JVMCI_ERROR("debug info expected at infopoint at %i", pc_offset);
+ }
+
+ // We'd like to check that pc_offset is greater than the
+ // last pc recorded with _debug_recorder (raising an exception if not)
+ // but DebugInformationRecorder doesn't have sufficient public API.
+
+ _debug_recorder->add_non_safepoint(pc_offset);
+ record_scope(pc_offset, debug_info, CodeInstaller::BytecodePosition, CHECK);
+ _debug_recorder->end_non_safepoint(pc_offset);
+}
+
+void CodeInstaller::site_Call(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS) {
+ Handle target(THREAD, site_Call::target(site));
+ InstanceKlass* target_klass = InstanceKlass::cast(target->klass());
+
+ Handle hotspot_method; // JavaMethod
+ Handle foreign_call;
+
+ if (target_klass->is_subclass_of(SystemDictionary::HotSpotForeignCallTarget_klass())) {
+ foreign_call = target;
+ } else {
+ hotspot_method = target;
+ }
+
+ Handle debug_info (THREAD, site_Call::debugInfo(site));
+
+ assert(hotspot_method.not_null() ^ foreign_call.not_null(), "Call site needs exactly one type");
+
+ NativeInstruction* inst = nativeInstruction_at(_instructions->start() + pc_offset);
+ jint next_pc_offset = CodeInstaller::pd_next_offset(inst, pc_offset, hotspot_method, CHECK);
+
+ if (debug_info.not_null()) {
+ OopMap *map = create_oop_map(debug_info, CHECK);
+ _debug_recorder->add_safepoint(next_pc_offset, map);
+
+ bool return_oop = hotspot_method.not_null() && getMethodFromHotSpotMethod(hotspot_method())->is_returning_oop();
+
+ record_scope(next_pc_offset, debug_info, CodeInstaller::FullFrame, return_oop, CHECK);
+ }
+
+ if (foreign_call.not_null()) {
+ jlong foreign_call_destination = HotSpotForeignCallTarget::address(foreign_call);
+ if (_immutable_pic_compilation) {
+ // Use fake short distance during PIC compilation.
+ foreign_call_destination = (jlong)(_instructions->start() + pc_offset);
+ }
+ CodeInstaller::pd_relocate_ForeignCall(inst, foreign_call_destination, CHECK);
+ } else { // method != NULL
+ if (debug_info.is_null()) {
+ JVMCI_ERROR("debug info expected at call at %i", pc_offset);
+ }
+
+ TRACE_jvmci_3("method call");
+ CodeInstaller::pd_relocate_JavaMethod(hotspot_method, pc_offset, CHECK);
+ if (_next_call_type == INVOKESTATIC || _next_call_type == INVOKESPECIAL) {
+ // Need a static call stub for transitions from compiled to interpreted.
+ CompiledStaticCall::emit_to_interp_stub(buffer, _instructions->start() + pc_offset);
+ }
+#if INCLUDE_AOT
+ // Trampoline to far aot code.
+ CompiledStaticCall::emit_to_aot_stub(buffer, _instructions->start() + pc_offset);
+#endif
+ }
+
+ _next_call_type = INVOKE_INVALID;
+
+ if (debug_info.not_null()) {
+ _debug_recorder->end_safepoint(next_pc_offset);
+ }
+}
+
+void CodeInstaller::site_DataPatch(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS) {
+ Handle reference(THREAD, site_DataPatch::reference(site));
+ if (reference.is_null()) {
+ THROW(vmSymbols::java_lang_NullPointerException());
+ } else if (reference->is_a(site_ConstantReference::klass())) {
+ Handle constant(THREAD, site_ConstantReference::constant(reference));
+ if (constant.is_null()) {
+ THROW(vmSymbols::java_lang_NullPointerException());
+ } else if (constant->is_a(HotSpotObjectConstantImpl::klass())) {
+ if (!_immutable_pic_compilation) {
+ // Do not patch during PIC compilation.
+ pd_patch_OopConstant(pc_offset, constant, CHECK);
+ }
+ } else if (constant->is_a(HotSpotMetaspaceConstantImpl::klass())) {
+ if (!_immutable_pic_compilation) {
+ pd_patch_MetaspaceConstant(pc_offset, constant, CHECK);
+ }
+ } else if (constant->is_a(HotSpotSentinelConstant::klass())) {
+ if (!_immutable_pic_compilation) {
+ JVMCI_ERROR("sentinel constant not supported for normal compiles: %s", constant->klass()->signature_name());
+ }
+ } else {
+ JVMCI_ERROR("unknown constant type in data patch: %s", constant->klass()->signature_name());
+ }
+ } else if (reference->is_a(site_DataSectionReference::klass())) {
+ int data_offset = site_DataSectionReference::offset(reference);
+ if (0 <= data_offset && data_offset < _constants_size) {
+ pd_patch_DataSectionReference(pc_offset, data_offset, CHECK);
+ } else {
+ JVMCI_ERROR("data offset 0x%X points outside data section (size 0x%X)", data_offset, _constants_size);
+ }
+ } else {
+ JVMCI_ERROR("unknown data patch type: %s", reference->klass()->signature_name());
+ }
+}
+
+void CodeInstaller::site_Mark(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS) {
+ Handle id_obj (THREAD, site_Mark::id(site));
+
+ if (id_obj.not_null()) {
+ if (!java_lang_boxing_object::is_instance(id_obj(), T_INT)) {
+ JVMCI_ERROR("expected Integer id, got %s", id_obj->klass()->signature_name());
+ }
+ jint id = id_obj->int_field(java_lang_boxing_object::value_offset_in_bytes(T_INT));
+
+ address pc = _instructions->start() + pc_offset;
+
+ switch (id) {
+ case UNVERIFIED_ENTRY:
+ _offsets.set_value(CodeOffsets::Entry, pc_offset);
+ break;
+ case VERIFIED_ENTRY:
+ _offsets.set_value(CodeOffsets::Verified_Entry, pc_offset);
+ break;
+ case OSR_ENTRY:
+ _offsets.set_value(CodeOffsets::OSR_Entry, pc_offset);
+ break;
+ case EXCEPTION_HANDLER_ENTRY:
+ _offsets.set_value(CodeOffsets::Exceptions, pc_offset);
+ break;
+ case DEOPT_HANDLER_ENTRY:
+ _offsets.set_value(CodeOffsets::Deopt, pc_offset);
+ break;
+ case INVOKEVIRTUAL:
+ case INVOKEINTERFACE:
+ case INLINE_INVOKE:
+ case INVOKESTATIC:
+ case INVOKESPECIAL:
+ _next_call_type = (MarkId) id;
+ _invoke_mark_pc = pc;
+ break;
+ case POLL_NEAR:
+ case POLL_FAR:
+ case POLL_RETURN_NEAR:
+ case POLL_RETURN_FAR:
+ pd_relocate_poll(pc, id, CHECK);
+ break;
+ case CARD_TABLE_SHIFT:
+ case CARD_TABLE_ADDRESS:
+ case HEAP_TOP_ADDRESS:
+ case HEAP_END_ADDRESS:
+ case NARROW_KLASS_BASE_ADDRESS:
+ case NARROW_OOP_BASE_ADDRESS:
+ case CRC_TABLE_ADDRESS:
+ case LOG_OF_HEAP_REGION_GRAIN_BYTES:
+ case INLINE_CONTIGUOUS_ALLOCATION_SUPPORTED:
+ break;
+ default:
+ JVMCI_ERROR("invalid mark id: %d", id);
+ break;
+ }
+ }
+}
+