235 lines
8.0 KiB
C++
235 lines
8.0 KiB
C++
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/*
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* Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#ifndef SHARE_VM_JVMCI_JVMCI_CODE_INSTALLER_HPP
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#define SHARE_VM_JVMCI_JVMCI_CODE_INSTALLER_HPP
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#include "jvmci/jvmciCompiler.hpp"
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#include "jvmci/jvmciEnv.hpp"
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#include "code/nativeInst.hpp"
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class RelocBuffer : public StackObj {
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enum { stack_size = 1024 };
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public:
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RelocBuffer() : _size(0), _buffer(0) {}
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~RelocBuffer();
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void ensure_size(size_t bytes);
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void set_size(size_t bytes);
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address begin() const;
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size_t size() const { return _size; }
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private:
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size_t _size;
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char _static_buffer[stack_size];
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char *_buffer;
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};
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class CodeMetadata {
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public:
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CodeMetadata() {}
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CodeBlob* get_code_blob() const { return _cb; }
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PcDesc* get_pc_desc() const { return _pc_desc; }
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int get_nr_pc_desc() const { return _nr_pc_desc; }
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u_char* get_scopes_desc() const { return _scopes_desc; }
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int get_scopes_size() const { return _nr_scopes_desc; }
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RelocBuffer* get_reloc_buffer() { return &_reloc_buffer; }
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ExceptionHandlerTable* get_exception_table() { return _exception_table; }
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void set_pc_desc(PcDesc* desc, int count) {
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_pc_desc = desc;
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_nr_pc_desc = count;
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}
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void set_scopes(u_char* scopes, int size) {
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_scopes_desc = scopes;
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_nr_scopes_desc = size;
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}
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void set_exception_table(ExceptionHandlerTable* table) {
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_exception_table = table;
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}
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private:
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CodeBlob* _cb;
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PcDesc* _pc_desc;
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int _nr_pc_desc;
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u_char* _scopes_desc;
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int _nr_scopes_desc;
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RelocBuffer _reloc_buffer;
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ExceptionHandlerTable* _exception_table;
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};
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/*
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* This class handles the conversion from a InstalledCode to a CodeBlob or an nmethod.
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*/
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class CodeInstaller : public StackObj {
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friend class VMStructs;
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private:
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enum MarkId {
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VERIFIED_ENTRY = 1,
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UNVERIFIED_ENTRY = 2,
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OSR_ENTRY = 3,
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EXCEPTION_HANDLER_ENTRY = 4,
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DEOPT_HANDLER_ENTRY = 5,
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INVOKEINTERFACE = 6,
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INVOKEVIRTUAL = 7,
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INVOKESTATIC = 8,
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INVOKESPECIAL = 9,
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INLINE_INVOKE = 10,
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POLL_NEAR = 11,
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POLL_RETURN_NEAR = 12,
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POLL_FAR = 13,
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POLL_RETURN_FAR = 14,
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CARD_TABLE_ADDRESS = 15,
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HEAP_TOP_ADDRESS = 16,
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HEAP_END_ADDRESS = 17,
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NARROW_KLASS_BASE_ADDRESS = 18,
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CRC_TABLE_ADDRESS = 19,
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INVOKE_INVALID = -1
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};
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Arena _arena;
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jobject _data_section_handle;
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jobject _data_section_patches_handle;
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jobject _sites_handle;
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jobject _exception_handlers_handle;
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CodeOffsets _offsets;
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jobject _code_handle;
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jint _code_size;
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jint _total_frame_size;
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jint _custom_stack_area_offset;
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jint _parameter_count;
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jint _constants_size;
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#ifndef PRODUCT
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jobject _comments_handle;
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#endif
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bool _has_wide_vector;
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jobject _word_kind_handle;
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MarkId _next_call_type;
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address _invoke_mark_pc;
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CodeSection* _instructions;
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CodeSection* _constants;
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OopRecorder* _oop_recorder;
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DebugInformationRecorder* _debug_recorder;
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Dependencies* _dependencies;
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ExceptionHandlerTable _exception_handler_table;
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static ConstantOopWriteValue* _oop_null_scope_value;
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static ConstantIntValue* _int_m1_scope_value;
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static ConstantIntValue* _int_0_scope_value;
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static ConstantIntValue* _int_1_scope_value;
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static ConstantIntValue* _int_2_scope_value;
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static LocationValue* _illegal_value;
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jint pd_next_offset(NativeInstruction* inst, jint pc_offset, oop method);
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void pd_patch_OopConstant(int pc_offset, Handle& constant);
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void pd_patch_DataSectionReference(int pc_offset, int data_offset);
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void pd_relocate_CodeBlob(CodeBlob* cb, NativeInstruction* inst);
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void pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination);
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void pd_relocate_JavaMethod(oop method, jint pc_offset);
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void pd_relocate_poll(address pc, jint mark);
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objArrayOop sites() { return (objArrayOop) JNIHandles::resolve(_sites_handle); }
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arrayOop code() { return (arrayOop) JNIHandles::resolve(_code_handle); }
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arrayOop data_section() { return (arrayOop) JNIHandles::resolve(_data_section_handle); }
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objArrayOop data_section_patches() { return (objArrayOop) JNIHandles::resolve(_data_section_patches_handle); }
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objArrayOop exception_handlers() { return (objArrayOop) JNIHandles::resolve(_exception_handlers_handle); }
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#ifndef PRODUCT
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objArrayOop comments() { return (objArrayOop) JNIHandles::resolve(_comments_handle); }
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#endif
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void record_resolved(oop obj);
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oop word_kind() { return (oop) JNIHandles::resolve(_word_kind_handle); }
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public:
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CodeInstaller() : _arena(mtCompiler) {}
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JVMCIEnv::CodeInstallResult gather_metadata(Handle target, Handle& compiled_code, CodeMetadata& metadata);
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JVMCIEnv::CodeInstallResult install(JVMCICompiler* compiler, Handle target, Handle& compiled_code, CodeBlob*& cb, Handle installed_code, Handle speculation_log);
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static address runtime_call_target_address(oop runtime_call);
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static VMReg get_hotspot_reg(jint jvmciRegisterNumber);
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static bool is_general_purpose_reg(VMReg hotspotRegister);
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const OopMapSet* oopMapSet() const { return _debug_recorder->_oopmaps; }
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protected:
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Location::Type get_oop_type(oop value);
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ScopeValue* get_scope_value(oop value, BasicType type, GrowableArray<ScopeValue*>* objects, ScopeValue* &second);
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MonitorValue* get_monitor_value(oop value, GrowableArray<ScopeValue*>* objects);
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// extract the fields of the CompilationResult
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void initialize_fields(oop target, oop target_method);
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void initialize_dependencies(oop target_method, OopRecorder* oop_recorder);
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int estimate_stubs_size();
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// perform data and call relocation on the CodeBuffer
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JVMCIEnv::CodeInstallResult initialize_buffer(CodeBuffer& buffer);
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void assumption_NoFinalizableSubclass(Handle assumption);
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void assumption_ConcreteSubtype(Handle assumption);
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void assumption_LeafType(Handle assumption);
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void assumption_ConcreteMethod(Handle assumption);
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void assumption_CallSiteTargetValue(Handle assumption);
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void site_Safepoint(CodeBuffer& buffer, jint pc_offset, oop site);
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void site_Infopoint(CodeBuffer& buffer, jint pc_offset, oop site);
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void site_Call(CodeBuffer& buffer, jint pc_offset, oop site);
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void site_DataPatch(CodeBuffer& buffer, jint pc_offset, oop site);
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void site_Mark(CodeBuffer& buffer, jint pc_offset, oop site);
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OopMap* create_oop_map(oop debug_info);
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void record_scope(jint pc_offset, oop debug_info);
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void record_scope(jint pc_offset, oop code_pos, GrowableArray<ScopeValue*>* objects);
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void record_object_value(ObjectValue* sv, oop value, GrowableArray<ScopeValue*>* objects);
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GrowableArray<ScopeValue*>* record_virtual_objects(oop debug_info);
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void process_exception_handlers();
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int estimateStubSpace(int static_call_stubs);
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};
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/**
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* Gets the Method metaspace object from a HotSpotResolvedJavaMethodImpl Java object.
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*/
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Method* getMethodFromHotSpotMethod(oop hotspot_method);
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#endif // SHARE_VM_JVMCI_JVMCI_CODE_INSTALLER_HPP
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