--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/jvmci/jvmciCodeInstaller.cpp Thu Oct 08 12:49:30 2015 -1000
@@ -0,0 +1,1029 @@
+/*
+ * Copyright (c) 2011, 2015, 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 "code/compiledIC.hpp"
+#include "compiler/compileBroker.hpp"
+#include "compiler/disassembler.hpp"
+#include "oops/oop.inline.hpp"
+#include "oops/objArrayOop.inline.hpp"
+#include "runtime/javaCalls.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 "asm/register.hpp"
+#include "classfile/vmSymbols.hpp"
+#include "code/vmreg.hpp"
+
+#ifdef TARGET_ARCH_x86
+# include "vmreg_x86.inline.hpp"
+#endif
+#ifdef TARGET_ARCH_sparc
+# include "vmreg_sparc.inline.hpp"
+#endif
+#ifdef TARGET_ARCH_zero
+# include "vmreg_zero.inline.hpp"
+#endif
+#ifdef TARGET_ARCH_arm
+# include "vmreg_arm.inline.hpp"
+#endif
+#ifdef TARGET_ARCH_ppc
+# include "vmreg_ppc.inline.hpp"
+#endif
+
+
+// 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(oop location, int total_frame_size) {
+ oop reg = code_Location::reg(location);
+ jint offset = code_Location::offset(location);
+
+ if (reg != NULL) {
+ // register
+ jint number = code_Register::number(reg);
+ VMReg vmReg = CodeInstaller::get_hotspot_reg(number);
+ assert(offset % 4 == 0, "must be aligned");
+ return vmReg->next(offset / 4);
+ } else {
+ // stack slot
+ assert(offset % 4 == 0, "must be aligned");
+ return VMRegImpl::stack2reg(offset / 4);
+ }
+}
+
+// creates a HotSpot oop map out of the byte arrays provided by DebugInfo
+OopMap* CodeInstaller::create_oop_map(oop debug_info) {
+ oop reference_map = DebugInfo::referenceMap(debug_info);
+ if (HotSpotReferenceMap::maxRegisterSize(reference_map) > 16) {
+ _has_wide_vector = true;
+ }
+ OopMap* map = new OopMap(_total_frame_size, _parameter_count);
+ objArrayOop objects = HotSpotReferenceMap::objects(reference_map);
+ objArrayOop derivedBase = HotSpotReferenceMap::derivedBase(reference_map);
+ typeArrayOop sizeInBytes = HotSpotReferenceMap::sizeInBytes(reference_map);
+ for (int i = 0; i < objects->length(); i++) {
+ oop location = objects->obj_at(i);
+ oop baseLocation = derivedBase->obj_at(i);
+ int bytes = sizeInBytes->int_at(i);
+
+ VMReg vmReg = getVMRegFromLocation(location, _total_frame_size);
+ if (baseLocation != NULL) {
+ // derived oop
+ assert(bytes == 8, "derived oop can't be compressed");
+ VMReg baseReg = getVMRegFromLocation(baseLocation, _total_frame_size);
+ map->set_derived_oop(vmReg, baseReg);
+ } else if (bytes == 8) {
+ // wide oop
+ map->set_oop(vmReg);
+ } else {
+ // narrow oop
+ assert(bytes == 4, "wrong size");
+ map->set_narrowoop(vmReg);
+ }
+ }
+
+ oop callee_save_info = (oop) DebugInfo::calleeSaveInfo(debug_info);
+ if (callee_save_info != NULL) {
+ objArrayOop registers = RegisterSaveLayout::registers(callee_save_info);
+ typeArrayOop slots = RegisterSaveLayout::slots(callee_save_info);
+ for (jint i = 0; i < slots->length(); i++) {
+ oop jvmci_reg = registers->obj_at(i);
+ jint jvmci_reg_number = code_Register::number(jvmci_reg);
+ VMReg hotspot_reg = CodeInstaller::get_hotspot_reg(jvmci_reg_number);
+ // 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;
+}
+
+static void record_metadata_reference(oop obj, jlong prim, jboolean compressed, OopRecorder* oop_recorder) {
+ if (obj->is_a(HotSpotResolvedObjectTypeImpl::klass())) {
+ Klass* klass = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(obj));
+ if (compressed) {
+ assert(Klass::decode_klass((narrowKlass) prim) == klass, err_msg("%s @ " INTPTR_FORMAT " != " PTR64_FORMAT, klass->name()->as_C_string(), p2i(klass), prim));
+ } else {
+ assert((Klass*) prim == klass, err_msg("%s @ " INTPTR_FORMAT " != " PTR64_FORMAT, klass->name()->as_C_string(), p2i(klass), prim));
+ }
+ int index = oop_recorder->find_index(klass);
+ TRACE_jvmci_3("metadata[%d of %d] = %s", index, oop_recorder->metadata_count(), klass->name()->as_C_string());
+ } else if (obj->is_a(HotSpotResolvedJavaMethodImpl::klass())) {
+ Method* method = (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(obj);
+ assert(!compressed, err_msg("unexpected compressed method pointer %s @ " INTPTR_FORMAT " = " PTR64_FORMAT, method->name()->as_C_string(), p2i(method), prim));
+ int index = oop_recorder->find_index(method);
+ TRACE_jvmci_3("metadata[%d of %d] = %s", index, oop_recorder->metadata_count(), method->name()->as_C_string());
+ } else {
+ assert(java_lang_String::is_instance(obj),
+ err_msg("unexpected metadata reference (%s) for constant " JLONG_FORMAT " (" PTR64_FORMAT ")", obj->klass()->name()->as_C_string(), prim, prim));
+ }
+}
+
+// Records any Metadata values embedded in a Constant (e.g., the value returned by HotSpotResolvedObjectTypeImpl.klass()).
+static void record_metadata_in_constant(oop constant, OopRecorder* oop_recorder) {
+ if (constant->is_a(HotSpotMetaspaceConstantImpl::klass())) {
+ oop obj = HotSpotMetaspaceConstantImpl::metaspaceObject(constant);
+ jlong prim = HotSpotMetaspaceConstantImpl::primitive(constant);
+ assert(obj != NULL, "must have an object");
+ assert(prim != 0, "must have a primitive value");
+
+ record_metadata_reference(obj, prim, false, oop_recorder);
+ }
+}
+
+static void record_metadata_in_patch(Handle& constant, OopRecorder* oop_recorder) {
+ record_metadata_reference(HotSpotMetaspaceConstantImpl::metaspaceObject(constant), HotSpotMetaspaceConstantImpl::primitive(constant), HotSpotMetaspaceConstantImpl::compressed(constant), oop_recorder);
+}
+
+Location::Type CodeInstaller::get_oop_type(oop value) {
+ oop lirKind = Value::lirKind(value);
+ oop platformKind = LIRKind::platformKind(lirKind);
+ assert(LIRKind::referenceMask(lirKind) == 1, "unexpected referenceMask");
+
+ if (platformKind == word_kind()) {
+ return Location::oop;
+ } else {
+ return Location::narrowoop;
+ }
+}
+
+ScopeValue* CodeInstaller::get_scope_value(oop value, BasicType type, GrowableArray<ScopeValue*>* objects, ScopeValue* &second) {
+ second = NULL;
+ if (value == Value::ILLEGAL()) {
+ assert(type == T_ILLEGAL, "expected legal value");
+ return _illegal_value;
+ } else if (value->is_a(RegisterValue::klass())) {
+ oop reg = RegisterValue::reg(value);
+ jint number = code_Register::number(reg);
+ VMReg hotspotRegister = get_hotspot_reg(number);
+ if (is_general_purpose_reg(hotspotRegister)) {
+ Location::Type locationType;
+ if (type == T_OBJECT) {
+ locationType = get_oop_type(value);
+ } else if (type == T_LONG) {
+ locationType = Location::lng;
+ } else {
+ assert(type == T_INT || type == T_FLOAT || type == T_SHORT || type == T_CHAR || type == T_BYTE || type == T_BOOLEAN, "unexpected type in cpu register");
+ locationType = Location::int_in_long;
+ }
+ ScopeValue* value = new LocationValue(Location::new_reg_loc(locationType, hotspotRegister));
+ if (type == T_LONG) {
+ second = value;
+ }
+ return value;
+ } else {
+ assert(type == T_FLOAT || type == T_DOUBLE, "only float and double expected in xmm register");
+ Location::Type locationType;
+ if (type == T_FLOAT) {
+ // this seems weird, but the same value is used in c1_LinearScan
+ locationType = Location::normal;
+ } else {
+ locationType = Location::dbl;
+ }
+ 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(value);
+ } else if (type == T_LONG) {
+ locationType = Location::lng;
+ } else if (type == T_DOUBLE) {
+ locationType = Location::dbl;
+ } else {
+ assert(type == T_INT || type == T_FLOAT || type == T_SHORT || type == T_CHAR || type == T_BYTE || type == T_BOOLEAN, "unexpected type in stack slot");
+ locationType = Location::normal;
+ }
+ 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())) {
+ record_metadata_in_constant(value, _oop_recorder);
+ if (value->is_a(PrimitiveConstant::klass())) {
+ if (value->is_a(RawConstant::klass())) {
+ jlong prim = PrimitiveConstant::primitive(value);
+ return new ConstantLongValue(prim);
+ } else {
+ assert(type == JVMCIRuntime::kindToBasicType(JavaKind::typeChar(PrimitiveConstant::kind(value))), "primitive constant type doesn't match");
+ 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 {
+ assert(type == T_LONG || type == T_DOUBLE, "unexpected primitive constant type");
+ jlong prim = PrimitiveConstant::primitive(value);
+ second = _int_1_scope_value;
+ return new ConstantLongValue(prim);
+ }
+ }
+ } else {
+ assert(type == T_OBJECT, "unexpected object constant");
+ if (value->is_a(NullConstant::klass()) || value->is_a(HotSpotCompressedNullConstant::klass())) {
+ return _oop_null_scope_value;
+ } else {
+ assert(value->is_a(HotSpotObjectConstantImpl::klass()), "unexpected constant type");
+ oop obj = HotSpotObjectConstantImpl::object(value);
+ assert(obj != NULL, "null value must be in NullConstant");
+ return new ConstantOopWriteValue(JNIHandles::make_local(obj));
+ }
+ }
+ } else if (value->is_a(VirtualObject::klass())) {
+ assert(type == T_OBJECT, "unexpected virtual object");
+ int id = VirtualObject::id(value);
+ ScopeValue* object = objects->at(id);
+ assert(object != NULL, "missing value");
+ return object;
+ } else {
+ value->klass()->print();
+ value->print();
+ }
+ ShouldNotReachHere();
+ return NULL;
+}
+
+void CodeInstaller::record_object_value(ObjectValue* sv, oop value, GrowableArray<ScopeValue*>* objects) {
+ oop type = 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();
+
+ objArrayOop values = VirtualObject::values(value);
+ objArrayOop slotKinds = VirtualObject::slotKinds(value);
+ for (jint i = 0; i < values->length(); i++) {
+ ScopeValue* cur_second = NULL;
+ oop object = values->obj_at(i);
+ oop kind = slotKinds->obj_at(i);
+ BasicType type = JVMCIRuntime::kindToBasicType(JavaKind::typeChar(kind));
+ ScopeValue* value = get_scope_value(object, type, objects, cur_second);
+
+ 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(oop value, GrowableArray<ScopeValue*>* objects) {
+ guarantee(value->is_a(StackLockValue::klass()), "Monitors must be of type StackLockValue");
+
+ ScopeValue* second = NULL;
+ ScopeValue* owner_value = get_scope_value(StackLockValue::owner(value), T_OBJECT, objects, second);
+ assert(second == NULL, "monitor cannot occupy two stack slots");
+
+ ScopeValue* lock_data_value = get_scope_value(StackLockValue::slot(value), T_LONG, objects, second);
+ 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) {
+ JavaThread* thread = JavaThread::current();
+ 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 = HotSpotCompiledCode::assumptions(compiled_code);
+ if (!assumptions.is_null()) {
+ int length = assumptions->length();
+ for (int i = 0; i < length; ++i) {
+ Handle assumption = assumptions->obj_at(i);
+ if (!assumption.is_null()) {
+ if (assumption->klass() == Assumptions_NoFinalizableSubclass::klass()) {
+ assumption_NoFinalizableSubclass(assumption);
+ } else if (assumption->klass() == Assumptions_ConcreteSubtype::klass()) {
+ assumption_ConcreteSubtype(assumption);
+ } else if (assumption->klass() == Assumptions_LeafType::klass()) {
+ assumption_LeafType(assumption);
+ } else if (assumption->klass() == Assumptions_ConcreteMethod::klass()) {
+ assumption_ConcreteMethod(assumption);
+ } else if (assumption->klass() == Assumptions_CallSiteTargetValue::klass()) {
+ assumption_CallSiteTargetValue(assumption);
+ } else {
+ assumption->print();
+ fatal("unexpected Assumption subclass");
+ }
+ }
+ }
+ }
+ objArrayHandle methods = HotSpotCompiledCode::methods(compiled_code);
+ if (!methods.is_null()) {
+ int length = methods->length();
+ for (int i = 0; i < length; ++i) {
+ Handle method_handle = 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) {
+ CodeBuffer buffer("JVMCI Compiler CodeBuffer for Metadata");
+ jobject compiled_code_obj = JNIHandles::make_local(compiled_code());
+ initialize_dependencies(JNIHandles::resolve(compiled_code_obj), NULL);
+
+ // Get instructions and constants CodeSections early because we need it.
+ _instructions = buffer.insts();
+ _constants = buffer.consts();
+
+ initialize_fields(target(), JNIHandles::resolve(compiled_code_obj));
+ if (!initialize_buffer(buffer)) {
+ return JVMCIEnv::code_too_large;
+ }
+ process_exception_handlers();
+
+ _debug_recorder->pcs_size(); // ehm, 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) {
+ 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);
+
+ // Get instructions and constants CodeSections early because we need it.
+ _instructions = buffer.insts();
+ _constants = buffer.consts();
+
+ initialize_fields(target(), JNIHandles::resolve(compiled_code_obj));
+ JVMCIEnv::CodeInstallResult result = initialize_buffer(buffer);
+ if (result != JVMCIEnv::ok) {
+ return result;
+ }
+ process_exception_handlers();
+
+ 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, _custom_stack_area_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;
+ }
+
+ if (cb != NULL) {
+ // Make sure the pre-calculated constants section size was correct.
+ guarantee((cb->code_begin() - cb->content_begin()) >= _constants_size, err_msg("%d < %d", (int)(cb->code_begin() - cb->content_begin()), _constants_size));
+ }
+ return result;
+}
+
+void CodeInstaller::initialize_fields(oop target, oop compiled_code) {
+ if (compiled_code->is_a(HotSpotCompiledNmethod::klass())) {
+ Handle hotspotJavaMethod = 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));
+ _exception_handlers_handle = JNIHandles::make_local(HotSpotCompiledCode::exceptionHandlers(compiled_code));
+
+ _code_handle = JNIHandles::make_local(HotSpotCompiledCode::targetCode(compiled_code));
+ _code_size = HotSpotCompiledCode::targetCodeSize(compiled_code);
+ _total_frame_size = HotSpotCompiledCode::totalFrameSize(compiled_code);
+ _custom_stack_area_offset = HotSpotCompiledCode::customStackAreaOffset(compiled_code);
+
+ // Pre-calculate the constants section size. This is required for PC-relative addressing.
+ _data_section_handle = JNIHandles::make_local(HotSpotCompiledCode::dataSection(compiled_code));
+ guarantee(HotSpotCompiledCode::dataSectionAlignment(compiled_code) <= _constants->alignment(), "Alignment inside constants section is restricted by alignment of section begin");
+ _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() {
+ // Return size for all stubs.
+ int static_call_stubs = 0;
+ objArrayOop sites = this->sites();
+ for (int i = 0; i < sites->length(); i++) {
+ oop site = sites->obj_at(i);
+ if (site->is_a(CompilationResult_Mark::klass())) {
+ oop id_obj = CompilationResult_Mark::id(site);
+ if (id_obj != NULL) {
+ assert(java_lang_boxing_object::is_instance(id_obj, T_INT), "Integer id expected");
+ jint id = id_obj->int_field(java_lang_boxing_object::value_offset_in_bytes(T_INT));
+ if (id == INVOKESTATIC || id == INVOKESPECIAL) {
+ static_call_stubs++;
+ }
+ }
+ }
+ }
+ return static_call_stubs * CompiledStaticCall::to_interp_stub_size();
+}
+
+// perform data and call relocation on the CodeBuffer
+JVMCIEnv::CodeInstallResult CodeInstaller::initialize_buffer(CodeBuffer& buffer) {
+ objArrayHandle sites = 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();
+ int total_size = round_to(_code_size, buffer.insts()->alignment()) + round_to(_constants_size, buffer.consts()->alignment()) + round_to(stubs_size, buffer.stubs()->alignment());
+
+ if (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++) {
+ Handle patch = data_section_patches()->obj_at(i);
+ Handle reference = CompilationResult_DataPatch::reference(patch);
+ assert(reference->is_a(CompilationResult_ConstantReference::klass()), err_msg("patch in data section must be a ConstantReference"));
+ Handle constant = CompilationResult_ConstantReference::constant(reference);
+ if (constant->is_a(HotSpotMetaspaceConstantImpl::klass())) {
+ record_metadata_in_patch(constant, _oop_recorder);
+ } else if (constant->is_a(HotSpotObjectConstantImpl::klass())) {
+ Handle obj = HotSpotObjectConstantImpl::object(constant);
+ jobject value = JNIHandles::make_local(obj());
+ int oop_index = _oop_recorder->find_index(value);
+
+ address dest = _constants->start() + CompilationResult_Site::pcOffset(patch);
+ if (HotSpotObjectConstantImpl::compressed(constant)) {
+#ifdef _LP64
+ _constants->relocate(dest, oop_Relocation::spec(oop_index), relocInfo::narrow_oop_in_const);
+#else
+ fatal("unexpected compressed oop in 32-bit mode");
+#endif
+ } else {
+ _constants->relocate(dest, oop_Relocation::spec(oop_index));
+ }
+ } else {
+ ShouldNotReachHere();
+ }
+ }
+ jint last_pc_offset = -1;
+ for (int i = 0; i < sites->length(); i++) {
+ {
+ No_Safepoint_Verifier no_safepoint;
+ oop site = sites->obj_at(i);
+ jint pc_offset = CompilationResult_Site::pcOffset(site);
+
+ if (site->is_a(CompilationResult_Call::klass())) {
+ TRACE_jvmci_4("call at %i", pc_offset);
+ site_Call(buffer, pc_offset, site);
+ } else if (site->is_a(CompilationResult_Infopoint::klass())) {
+ // three reasons for infopoints denote actual safepoints
+ oop reason = CompilationResult_Infopoint::reason(site);
+ if (InfopointReason::SAFEPOINT() == reason || InfopointReason::CALL() == reason || InfopointReason::IMPLICIT_EXCEPTION() == reason) {
+ TRACE_jvmci_4("safepoint at %i", pc_offset);
+ site_Safepoint(buffer, pc_offset, site);
+ } else {
+ // if the infopoint is not an actual safepoint, it must have one of the other reasons
+ // (safeguard against new safepoint types that require handling above)
+ assert(InfopointReason::METHOD_START() == reason || InfopointReason::METHOD_END() == reason || InfopointReason::LINE_NUMBER() == reason, "");
+ site_Infopoint(buffer, pc_offset, site);
+ }
+ } else if (site->is_a(CompilationResult_DataPatch::klass())) {
+ TRACE_jvmci_4("datapatch at %i", pc_offset);
+ site_DataPatch(buffer, pc_offset, site);
+ } else if (site->is_a(CompilationResult_Mark::klass())) {
+ TRACE_jvmci_4("mark at %i", pc_offset);
+ site_Mark(buffer, pc_offset, site);
+ } else {
+ fatal("unexpected Site subclass");
+ }
+ last_pc_offset = pc_offset;
+ }
+ if (CodeInstallSafepointChecks && 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) {
+ No_Safepoint_Verifier no_safepoint;
+ 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(Handle assumption) {
+ Handle receiverType_handle = 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(Handle assumption) {
+ Handle context_handle = Assumptions_ConcreteSubtype::context(assumption());
+ Handle subtype_handle = 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(Handle assumption) {
+ Handle context_handle = Assumptions_LeafType::context(assumption());
+ Klass* context = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(context_handle));
+
+ _dependencies->assert_leaf_type(context);
+}
+
+void CodeInstaller::assumption_ConcreteMethod(Handle assumption) {
+ Handle impl_handle = Assumptions_ConcreteMethod::impl(assumption());
+ Handle context_handle = 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(Handle assumption) {
+ Handle callSite = Assumptions_CallSiteTargetValue::callSite(assumption());
+ Handle methodHandle = Assumptions_CallSiteTargetValue::methodHandle(assumption());
+
+ _dependencies->assert_call_site_target_value(callSite(), methodHandle());
+}
+
+void CodeInstaller::process_exception_handlers() {
+ if (exception_handlers() != NULL) {
+ objArrayOop handlers = exception_handlers();
+ for (int i = 0; i < handlers->length(); i++) {
+ oop exc = handlers->obj_at(i);
+ jint pc_offset = CompilationResult_Site::pcOffset(exc);
+ jint handler_offset = CompilationResult_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(oop debug_info) {
+ objArrayOop virtualObjects = DebugInfo::virtualObjectMapping(debug_info);
+ if (virtualObjects == 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++) {
+ oop value = virtualObjects->obj_at(i);
+ int id = VirtualObject::id(value);
+ oop type = VirtualObject::type(value);
+ oop javaMirror = HotSpotResolvedObjectTypeImpl::javaClass(type);
+ ObjectValue* sv = new ObjectValue(id, new ConstantOopWriteValue(JNIHandles::make_local(Thread::current(), javaMirror)));
+ assert(objects->at(id) == NULL, "once");
+ 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++) {
+ oop value = virtualObjects->obj_at(i);
+ int id = VirtualObject::id(value);
+ record_object_value(objects->at(id)->as_ObjectValue(), value, objects);
+ }
+ _debug_recorder->dump_object_pool(objects);
+ return objects;
+}
+
+void CodeInstaller::record_scope(jint pc_offset, oop debug_info) {
+ oop position = DebugInfo::bytecodePosition(debug_info);
+ if (position == NULL) {
+ // Stubs do not record scope info, just oop maps
+ return;
+ }
+
+ GrowableArray<ScopeValue*>* objectMapping = record_virtual_objects(debug_info);
+ record_scope(pc_offset, position, objectMapping);
+}
+
+void CodeInstaller::record_scope(jint pc_offset, oop position, GrowableArray<ScopeValue*>* objects) {
+ oop frame = NULL;
+ if (position->is_a(BytecodeFrame::klass())) {
+ frame = position;
+ }
+ oop caller_frame = BytecodePosition::caller(position);
+ if (caller_frame != NULL) {
+ record_scope(pc_offset, caller_frame, objects);
+ }
+
+ oop hotspot_method = 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 != 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 != 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 != NULL) {
+ jint local_count = BytecodeFrame::numLocals(frame);
+ jint expression_count = BytecodeFrame::numStack(frame);
+ jint monitor_count = BytecodeFrame::numLocks(frame);
+ objArrayOop values = BytecodeFrame::values(frame);
+ objArrayOop slotKinds = BytecodeFrame::slotKinds(frame);
+
+ assert(local_count + expression_count + monitor_count == values->length(), "unexpected values length");
+ assert(local_count + expression_count == slotKinds->length(), "unexpected slotKinds length");
+
+ 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++) {
+ ScopeValue* second = NULL;
+ oop value = values->obj_at(i);
+ if (i < local_count) {
+ oop kind = slotKinds->obj_at(i);
+ BasicType type = JVMCIRuntime::kindToBasicType(JavaKind::typeChar(kind));
+ ScopeValue* first = get_scope_value(value, type, objects, second);
+ if (second != NULL) {
+ locals->append(second);
+ }
+ locals->append(first);
+ } else if (i < local_count + expression_count) {
+ oop kind = slotKinds->obj_at(i);
+ BasicType type = JVMCIRuntime::kindToBasicType(JavaKind::typeChar(kind));
+ ScopeValue* first = get_scope_value(value, type, objects, second);
+ if (second != NULL) {
+ expressions->append(second);
+ }
+ expressions->append(first);
+ } else {
+ monitors->append(get_monitor_value(value, objects));
+ }
+ if (second != NULL) {
+ i++;
+ assert(i < values->length(), "double-slot value not followed by Value.ILLEGAL");
+ assert(values->obj_at(i) == Value::ILLEGAL(), "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, false,
+ locals_token, expressions_token, monitors_token);
+}
+
+void CodeInstaller::site_Safepoint(CodeBuffer& buffer, jint pc_offset, oop site) {
+ oop debug_info = CompilationResult_Infopoint::debugInfo(site);
+ assert(debug_info != NULL, "debug info expected");
+
+ // address instruction = _instructions->start() + pc_offset;
+ // jint next_pc_offset = Assembler::locate_next_instruction(instruction) - _instructions->start();
+ _debug_recorder->add_safepoint(pc_offset, create_oop_map(debug_info));
+ record_scope(pc_offset, debug_info);
+ _debug_recorder->end_safepoint(pc_offset);
+}
+
+void CodeInstaller::site_Infopoint(CodeBuffer& buffer, jint pc_offset, oop site) {
+ oop debug_info = CompilationResult_Infopoint::debugInfo(site);
+ assert(debug_info != NULL, "debug info expected");
+
+ _debug_recorder->add_non_safepoint(pc_offset);
+ record_scope(pc_offset, debug_info);
+ _debug_recorder->end_non_safepoint(pc_offset);
+}
+
+void CodeInstaller::site_Call(CodeBuffer& buffer, jint pc_offset, oop site) {
+ oop target = CompilationResult_Call::target(site);
+ InstanceKlass* target_klass = InstanceKlass::cast(target->klass());
+
+ oop hotspot_method = NULL; // JavaMethod
+ oop foreign_call = NULL;
+
+ if (target_klass->is_subclass_of(SystemDictionary::HotSpotForeignCallTarget_klass())) {
+ foreign_call = target;
+ } else {
+ hotspot_method = target;
+ }
+
+ oop debug_info = CompilationResult_Call::debugInfo(site);
+
+ assert(!!hotspot_method ^ !!foreign_call, "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);
+
+ if (debug_info != NULL) {
+ _debug_recorder->add_safepoint(next_pc_offset, create_oop_map(debug_info));
+ record_scope(next_pc_offset, debug_info);
+ }
+
+ if (foreign_call != NULL) {
+ jlong foreign_call_destination = HotSpotForeignCallTarget::address(foreign_call);
+ CodeInstaller::pd_relocate_ForeignCall(inst, foreign_call_destination);
+ } else { // method != NULL
+ assert(hotspot_method != NULL, "unexpected JavaMethod");
+ assert(debug_info != NULL, "debug info expected");
+
+ TRACE_jvmci_3("method call");
+ CodeInstaller::pd_relocate_JavaMethod(hotspot_method, pc_offset);
+ 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);
+ }
+ }
+
+ _next_call_type = INVOKE_INVALID;
+
+ if (debug_info != NULL) {
+ _debug_recorder->end_safepoint(next_pc_offset);
+ }
+}
+
+void CodeInstaller::site_DataPatch(CodeBuffer& buffer, jint pc_offset, oop site) {
+ oop reference = CompilationResult_DataPatch::reference(site);
+ if (reference->is_a(CompilationResult_ConstantReference::klass())) {
+ Handle constant = CompilationResult_ConstantReference::constant(reference);
+ if (constant->is_a(HotSpotObjectConstantImpl::klass())) {
+ pd_patch_OopConstant(pc_offset, constant);
+ } else if (constant->is_a(HotSpotMetaspaceConstantImpl::klass())) {
+ record_metadata_in_patch(constant, _oop_recorder);
+ } else if (constant->is_a(HotSpotSentinelConstant::klass())) {
+ fatal("sentinel constant unsupported");
+ } else {
+ fatal("unknown constant type in data patch");
+ }
+ } else if (reference->is_a(CompilationResult_DataSectionReference::klass())) {
+ int data_offset = CompilationResult_DataSectionReference::offset(reference);
+ assert(0 <= data_offset && data_offset < _constants_size, err_msg("data offset 0x%X points outside data section (size 0x%X)", data_offset, _constants_size));
+ pd_patch_DataSectionReference(pc_offset, data_offset);
+ } else {
+ fatal("unknown data patch type");
+ }
+}
+
+void CodeInstaller::site_Mark(CodeBuffer& buffer, jint pc_offset, oop site) {
+ oop id_obj = CompilationResult_Mark::id(site);
+
+ if (id_obj != NULL) {
+ assert(java_lang_boxing_object::is_instance(id_obj, T_INT), "Integer id expected");
+ 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);
+ break;
+ case CARD_TABLE_ADDRESS:
+ case HEAP_TOP_ADDRESS:
+ case HEAP_END_ADDRESS:
+ case NARROW_KLASS_BASE_ADDRESS:
+ case CRC_TABLE_ADDRESS:
+ break;
+ default:
+ ShouldNotReachHere();
+ break;
+ }
+ }
+}
+