1/* 2 * Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24#ifndef SHARE_VM_JVMCI_JVMCI_CODE_INSTALLER_HPP 25#define SHARE_VM_JVMCI_JVMCI_CODE_INSTALLER_HPP 26 27#include "jvmci/jvmciCompiler.hpp" 28#include "jvmci/jvmciEnv.hpp" 29#include "code/nativeInst.hpp" 30 31class RelocBuffer : public StackObj { 32 enum { stack_size = 1024 }; 33public: 34 RelocBuffer() : _size(0), _buffer(0) {} 35 ~RelocBuffer(); 36 void ensure_size(size_t bytes); 37 void set_size(size_t bytes); 38 address begin() const; 39 size_t size() const { return _size; } 40private: 41 size_t _size; 42 char _static_buffer[stack_size]; 43 char *_buffer; 44}; 45 46class AOTOopRecorder : public OopRecorder { 47public: 48 AOTOopRecorder(Arena* arena = NULL, bool deduplicate = false); 49 50 virtual int find_index(Metadata* h); 51 virtual int find_index(jobject h); 52 int nr_meta_strings() const; 53 const char* meta_element(int pos) const; 54 55private: 56 void record_meta_string(const char* name, int index); 57 58 GrowableArray<const char*>* _meta_strings; 59}; 60 61class CodeMetadata { 62public: 63 CodeMetadata() {} 64 65 CodeBlob* get_code_blob() const { return _cb; } 66 67 PcDesc* get_pc_desc() const { return _pc_desc; } 68 int get_nr_pc_desc() const { return _nr_pc_desc; } 69 70 u_char* get_scopes_desc() const { return _scopes_desc; } 71 int get_scopes_size() const { return _nr_scopes_desc; } 72 73 RelocBuffer* get_reloc_buffer() { return &_reloc_buffer; } 74 75 AOTOopRecorder* get_oop_recorder() { return _oop_recorder; } 76 77 ExceptionHandlerTable* get_exception_table() { return _exception_table; } 78 79 void set_pc_desc(PcDesc* desc, int count) { 80 _pc_desc = desc; 81 _nr_pc_desc = count; 82 } 83 84 void set_scopes(u_char* scopes, int size) { 85 _scopes_desc = scopes; 86 _nr_scopes_desc = size; 87 } 88 89 void set_oop_recorder(AOTOopRecorder* recorder) { 90 _oop_recorder = recorder; 91 } 92 93 void set_exception_table(ExceptionHandlerTable* table) { 94 _exception_table = table; 95 } 96 97private: 98 CodeBlob* _cb; 99 PcDesc* _pc_desc; 100 int _nr_pc_desc; 101 102 u_char* _scopes_desc; 103 int _nr_scopes_desc; 104 105 RelocBuffer _reloc_buffer; 106 AOTOopRecorder* _oop_recorder; 107 ExceptionHandlerTable* _exception_table; 108}; 109 110/* 111 * This class handles the conversion from a InstalledCode to a CodeBlob or an nmethod. 112 */ 113class CodeInstaller : public StackObj { 114 friend class JVMCIVMStructs; 115private: 116 enum MarkId { 117 VERIFIED_ENTRY = 1, 118 UNVERIFIED_ENTRY = 2, 119 OSR_ENTRY = 3, 120 EXCEPTION_HANDLER_ENTRY = 4, 121 DEOPT_HANDLER_ENTRY = 5, 122 INVOKEINTERFACE = 6, 123 INVOKEVIRTUAL = 7, 124 INVOKESTATIC = 8, 125 INVOKESPECIAL = 9, 126 INLINE_INVOKE = 10, 127 POLL_NEAR = 11, 128 POLL_RETURN_NEAR = 12, 129 POLL_FAR = 13, 130 POLL_RETURN_FAR = 14, 131 CARD_TABLE_ADDRESS = 15, 132 CARD_TABLE_SHIFT = 16, 133 HEAP_TOP_ADDRESS = 17, 134 HEAP_END_ADDRESS = 18, 135 NARROW_KLASS_BASE_ADDRESS = 19, 136 NARROW_OOP_BASE_ADDRESS = 20, 137 CRC_TABLE_ADDRESS = 21, 138 LOG_OF_HEAP_REGION_GRAIN_BYTES = 22, 139 INLINE_CONTIGUOUS_ALLOCATION_SUPPORTED = 23, 140 INVOKE_INVALID = -1 141 }; 142 143 Arena _arena; 144 145 jobject _data_section_handle; 146 jobject _data_section_patches_handle; 147 jobject _sites_handle; 148 CodeOffsets _offsets; 149 150 jobject _code_handle; 151 jint _code_size; 152 jint _total_frame_size; 153 jint _orig_pc_offset; 154 jint _parameter_count; 155 jint _constants_size; 156#ifndef PRODUCT 157 jobject _comments_handle; 158#endif 159 160 bool _has_wide_vector; 161 jobject _word_kind_handle; 162 163 MarkId _next_call_type; 164 address _invoke_mark_pc; 165 166 CodeSection* _instructions; 167 CodeSection* _constants; 168 169 OopRecorder* _oop_recorder; 170 DebugInformationRecorder* _debug_recorder; 171 Dependencies* _dependencies; 172 ExceptionHandlerTable _exception_handler_table; 173 174 bool _immutable_pic_compilation; // Installer is called for Immutable PIC compilation. 175 176 static ConstantOopWriteValue* _oop_null_scope_value; 177 static ConstantIntValue* _int_m1_scope_value; 178 static ConstantIntValue* _int_0_scope_value; 179 static ConstantIntValue* _int_1_scope_value; 180 static ConstantIntValue* _int_2_scope_value; 181 static LocationValue* _illegal_value; 182 183 jint pd_next_offset(NativeInstruction* inst, jint pc_offset, Handle method, TRAPS); 184 void pd_patch_OopConstant(int pc_offset, Handle constant, TRAPS); 185 void pd_patch_MetaspaceConstant(int pc_offset, Handle constant, TRAPS); 186 void pd_patch_DataSectionReference(int pc_offset, int data_offset, TRAPS); 187 void pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination, TRAPS); 188 void pd_relocate_JavaMethod(Handle method, jint pc_offset, TRAPS); 189 void pd_relocate_poll(address pc, jint mark, TRAPS); 190 191 objArrayOop sites() { return (objArrayOop) JNIHandles::resolve(_sites_handle); } 192 arrayOop code() { return (arrayOop) JNIHandles::resolve(_code_handle); } 193 arrayOop data_section() { return (arrayOop) JNIHandles::resolve(_data_section_handle); } 194 objArrayOop data_section_patches() { return (objArrayOop) JNIHandles::resolve(_data_section_patches_handle); } 195#ifndef PRODUCT 196 objArrayOop comments() { return (objArrayOop) JNIHandles::resolve(_comments_handle); } 197#endif 198 199 oop word_kind() { return (oop) JNIHandles::resolve(_word_kind_handle); } 200 201public: 202 203 CodeInstaller(bool immutable_pic_compilation) : _arena(mtCompiler), _immutable_pic_compilation(immutable_pic_compilation) {} 204 205 JVMCIEnv::CodeInstallResult gather_metadata(Handle target, Handle compiled_code, CodeMetadata& metadata, TRAPS); 206 JVMCIEnv::CodeInstallResult install(JVMCICompiler* compiler, Handle target, Handle compiled_code, CodeBlob*& cb, Handle installed_code, Handle speculation_log, TRAPS); 207 208 static address runtime_call_target_address(oop runtime_call); 209 static VMReg get_hotspot_reg(jint jvmciRegisterNumber, TRAPS); 210 static bool is_general_purpose_reg(VMReg hotspotRegister); 211 212 const OopMapSet* oopMapSet() const { return _debug_recorder->_oopmaps; } 213 214protected: 215 Location::Type get_oop_type(Thread* thread, Handle value); 216 ScopeValue* get_scope_value(Handle value, BasicType type, GrowableArray<ScopeValue*>* objects, ScopeValue* &second, TRAPS); 217 MonitorValue* get_monitor_value(Handle value, GrowableArray<ScopeValue*>* objects, TRAPS); 218 219 void* record_metadata_reference(CodeSection* section, address dest, Handle constant, TRAPS); 220#ifdef _LP64 221 narrowKlass record_narrow_metadata_reference(CodeSection* section, address dest, Handle constant, TRAPS); 222#endif 223 224 // extract the fields of the HotSpotCompiledCode 225 void initialize_fields(oop target, oop target_method, TRAPS); 226 void initialize_dependencies(oop target_method, OopRecorder* oop_recorder, TRAPS); 227 228 int estimate_stubs_size(TRAPS); 229 230 // perform data and call relocation on the CodeBuffer 231 JVMCIEnv::CodeInstallResult initialize_buffer(CodeBuffer& buffer, bool check_size, TRAPS); 232 233 void assumption_NoFinalizableSubclass(Thread* thread, Handle assumption); 234 void assumption_ConcreteSubtype(Thread* thread, Handle assumption); 235 void assumption_LeafType(Thread* thread, Handle assumption); 236 void assumption_ConcreteMethod(Thread* thread, Handle assumption); 237 void assumption_CallSiteTargetValue(Thread* thread, Handle assumption); 238 239 void site_Safepoint(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS); 240 void site_Infopoint(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS); 241 void site_Call(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS); 242 void site_DataPatch(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS); 243 void site_Mark(CodeBuffer& buffer, jint pc_offset, Handle site, TRAPS); 244 void site_ExceptionHandler(jint pc_offset, Handle site); 245 246 OopMap* create_oop_map(Handle debug_info, TRAPS); 247 248 /** 249 * Specifies the level of detail to record for a scope. 250 */ 251 enum ScopeMode { 252 // Only record a method and BCI 253 BytecodePosition, 254 // Record a method, bci and JVM frame state 255 FullFrame 256 }; 257 258 void record_scope(jint pc_offset, Handle debug_info, ScopeMode scope_mode, bool return_oop, TRAPS); 259 void record_scope(jint pc_offset, Handle debug_info, ScopeMode scope_mode, TRAPS) { 260 record_scope(pc_offset, debug_info, scope_mode, false /* return_oop */, THREAD); 261 } 262 void record_scope(jint pc_offset, Handle position, ScopeMode scope_mode, GrowableArray<ScopeValue*>* objects, bool return_oop, TRAPS); 263 void record_object_value(ObjectValue* sv, Handle value, GrowableArray<ScopeValue*>* objects, TRAPS); 264 265 GrowableArray<ScopeValue*>* record_virtual_objects(Handle debug_info, TRAPS); 266 267 int estimateStubSpace(int static_call_stubs); 268}; 269 270/** 271 * Gets the Method metaspace object from a HotSpotResolvedJavaMethodImpl Java object. 272 */ 273Method* getMethodFromHotSpotMethod(oop hotspot_method); 274 275 276 277#endif // SHARE_VM_JVMCI_JVMCI_CODE_INSTALLER_HPP 278