/* * 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. */ #ifndef SHARE_VM_JVMCI_JVMCI_CODE_INSTALLER_HPP #define SHARE_VM_JVMCI_JVMCI_CODE_INSTALLER_HPP #include "jvmci/jvmciCompiler.hpp" #include "jvmci/jvmciEnv.hpp" #include "code/nativeInst.hpp" class RelocBuffer : public StackObj { enum { stack_size = 1024 }; public: RelocBuffer() : _size(0), _buffer(0) {} ~RelocBuffer(); void ensure_size(size_t bytes); void set_size(size_t bytes); address begin() const; size_t size() const { return _size; } private: size_t _size; char _static_buffer[stack_size]; char *_buffer; }; class CodeMetadata { public: CodeMetadata() {} CodeBlob* get_code_blob() const { return _cb; } PcDesc* get_pc_desc() const { return _pc_desc; } int get_nr_pc_desc() const { return _nr_pc_desc; } u_char* get_scopes_desc() const { return _scopes_desc; } int get_scopes_size() const { return _nr_scopes_desc; } RelocBuffer* get_reloc_buffer() { return &_reloc_buffer; } ExceptionHandlerTable* get_exception_table() { return _exception_table; } void set_pc_desc(PcDesc* desc, int count) { _pc_desc = desc; _nr_pc_desc = count; } void set_scopes(u_char* scopes, int size) { _scopes_desc = scopes; _nr_scopes_desc = size; } void set_exception_table(ExceptionHandlerTable* table) { _exception_table = table; } private: CodeBlob* _cb; PcDesc* _pc_desc; int _nr_pc_desc; u_char* _scopes_desc; int _nr_scopes_desc; RelocBuffer _reloc_buffer; ExceptionHandlerTable* _exception_table; }; /* * This class handles the conversion from a InstalledCode to a CodeBlob or an nmethod. */ class CodeInstaller : public StackObj { friend class VMStructs; private: enum MarkId { VERIFIED_ENTRY = 1, UNVERIFIED_ENTRY = 2, OSR_ENTRY = 3, EXCEPTION_HANDLER_ENTRY = 4, DEOPT_HANDLER_ENTRY = 5, INVOKEINTERFACE = 6, INVOKEVIRTUAL = 7, INVOKESTATIC = 8, INVOKESPECIAL = 9, INLINE_INVOKE = 10, POLL_NEAR = 11, POLL_RETURN_NEAR = 12, POLL_FAR = 13, POLL_RETURN_FAR = 14, CARD_TABLE_ADDRESS = 15, CARD_TABLE_SHIFT = 16, HEAP_TOP_ADDRESS = 17, HEAP_END_ADDRESS = 18, NARROW_KLASS_BASE_ADDRESS = 19, CRC_TABLE_ADDRESS = 20, INVOKE_INVALID = -1 }; Arena _arena; jobject _data_section_handle; jobject _data_section_patches_handle; jobject _sites_handle; jobject _exception_handlers_handle; CodeOffsets _offsets; jobject _code_handle; jint _code_size; jint _total_frame_size; jint _custom_stack_area_offset; jint _parameter_count; jint _constants_size; #ifndef PRODUCT jobject _comments_handle; #endif bool _has_wide_vector; jobject _word_kind_handle; MarkId _next_call_type; address _invoke_mark_pc; CodeSection* _instructions; CodeSection* _constants; OopRecorder* _oop_recorder; DebugInformationRecorder* _debug_recorder; Dependencies* _dependencies; ExceptionHandlerTable _exception_handler_table; static ConstantOopWriteValue* _oop_null_scope_value; static ConstantIntValue* _int_m1_scope_value; static ConstantIntValue* _int_0_scope_value; static ConstantIntValue* _int_1_scope_value; static ConstantIntValue* _int_2_scope_value; static LocationValue* _illegal_value; jint pd_next_offset(NativeInstruction* inst, jint pc_offset, oop method); void pd_patch_OopConstant(int pc_offset, Handle& constant); void pd_patch_MetaspaceConstant(int pc_offset, Handle& constant); void pd_patch_DataSectionReference(int pc_offset, int data_offset); void pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination); void pd_relocate_JavaMethod(oop method, jint pc_offset); void pd_relocate_poll(address pc, jint mark); objArrayOop sites() { return (objArrayOop) JNIHandles::resolve(_sites_handle); } arrayOop code() { return (arrayOop) JNIHandles::resolve(_code_handle); } arrayOop data_section() { return (arrayOop) JNIHandles::resolve(_data_section_handle); } objArrayOop data_section_patches() { return (objArrayOop) JNIHandles::resolve(_data_section_patches_handle); } objArrayOop exception_handlers() { return (objArrayOop) JNIHandles::resolve(_exception_handlers_handle); } #ifndef PRODUCT objArrayOop comments() { return (objArrayOop) JNIHandles::resolve(_comments_handle); } #endif oop word_kind() { return (oop) JNIHandles::resolve(_word_kind_handle); } public: CodeInstaller() : _arena(mtCompiler) {} JVMCIEnv::CodeInstallResult gather_metadata(Handle target, Handle& compiled_code, CodeMetadata& metadata); JVMCIEnv::CodeInstallResult install(JVMCICompiler* compiler, Handle target, Handle& compiled_code, CodeBlob*& cb, Handle installed_code, Handle speculation_log); static address runtime_call_target_address(oop runtime_call); static VMReg get_hotspot_reg(jint jvmciRegisterNumber); static bool is_general_purpose_reg(VMReg hotspotRegister); const OopMapSet* oopMapSet() const { return _debug_recorder->_oopmaps; } protected: Location::Type get_oop_type(oop value); ScopeValue* get_scope_value(oop value, BasicType type, GrowableArray* objects, ScopeValue* &second); MonitorValue* get_monitor_value(oop value, GrowableArray* objects); Metadata* record_metadata_reference(Handle& constant); #ifdef _LP64 narrowKlass record_narrow_metadata_reference(Handle& constant); #endif // extract the fields of the CompilationResult void initialize_fields(oop target, oop target_method); void initialize_dependencies(oop target_method, OopRecorder* oop_recorder); int estimate_stubs_size(); // perform data and call relocation on the CodeBuffer JVMCIEnv::CodeInstallResult initialize_buffer(CodeBuffer& buffer); void assumption_NoFinalizableSubclass(Handle assumption); void assumption_ConcreteSubtype(Handle assumption); void assumption_LeafType(Handle assumption); void assumption_ConcreteMethod(Handle assumption); void assumption_CallSiteTargetValue(Handle assumption); void site_Safepoint(CodeBuffer& buffer, jint pc_offset, oop site); void site_Infopoint(CodeBuffer& buffer, jint pc_offset, oop site); void site_Call(CodeBuffer& buffer, jint pc_offset, oop site); void site_DataPatch(CodeBuffer& buffer, jint pc_offset, oop site); void site_Mark(CodeBuffer& buffer, jint pc_offset, oop site); OopMap* create_oop_map(oop debug_info); void record_scope(jint pc_offset, oop debug_info); void record_scope(jint pc_offset, oop code_pos, GrowableArray* objects); void record_object_value(ObjectValue* sv, oop value, GrowableArray* objects); GrowableArray* record_virtual_objects(oop debug_info); void process_exception_handlers(); int estimateStubSpace(int static_call_stubs); }; /** * Gets the Method metaspace object from a HotSpotResolvedJavaMethodImpl Java object. */ Method* getMethodFromHotSpotMethod(oop hotspot_method); #endif // SHARE_VM_JVMCI_JVMCI_CODE_INSTALLER_HPP