--- /dev/null 2015-10-08 07:26:14.000000000 -1000 +++ new/src/share/vm/jvmci/jvmciCodeInstaller.hpp 2015-10-08 07:26:14.000000000 -1000 @@ -0,0 +1,234 @@ +/* + * 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, + HEAP_TOP_ADDRESS = 16, + HEAP_END_ADDRESS = 17, + NARROW_KLASS_BASE_ADDRESS = 18, + CRC_TABLE_ADDRESS = 19, + 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_DataSectionReference(int pc_offset, int data_offset); + void pd_relocate_CodeBlob(CodeBlob* cb, NativeInstruction* inst); + 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 + + void record_resolved(oop obj); + + 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); + + // 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