Mercurial > hg > truffle
annotate src/share/vm/code/codeBlob.hpp @ 21559:be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Thu, 28 May 2015 15:36:48 +0200 |
| parents | 33a783b15758 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_CODE_CODEBLOB_HPP |
| 26 #define SHARE_VM_CODE_CODEBLOB_HPP | |
| 27 | |
| 28 #include "asm/codeBuffer.hpp" | |
| 29 #include "compiler/oopMap.hpp" | |
| 30 #include "runtime/frame.hpp" | |
| 31 #include "runtime/handles.hpp" | |
| 32 | |
| 0 | 33 // CodeBlob - superclass for all entries in the CodeCache. |
| 34 // | |
| 35 // Suptypes are: | |
| 36 // nmethod : Compiled Java methods (include method that calls to native code) | |
| 37 // RuntimeStub : Call to VM runtime methods | |
| 38 // DeoptimizationBlob : Used for deoptimizatation | |
| 39 // ExceptionBlob : Used for stack unrolling | |
| 40 // SafepointBlob : Used to handle illegal instruction exceptions | |
| 41 // | |
| 42 // | |
| 43 // Layout: | |
| 44 // - header | |
| 45 // - relocation | |
| 1748 | 46 // - content space |
| 47 // - instruction space | |
| 0 | 48 // - data space |
| 49 class DeoptimizationBlob; | |
| 50 | |
| 51 class CodeBlob VALUE_OBJ_CLASS_SPEC { | |
| 52 | |
| 53 friend class VMStructs; | |
| 54 | |
| 55 private: | |
| 56 const char* _name; | |
| 57 int _size; // total size of CodeBlob in bytes | |
| 58 int _header_size; // size of header (depends on subclass) | |
| 59 int _relocation_size; // size of relocation | |
| 1748 | 60 int _content_offset; // offset to where content region begins (this includes consts, insts, stubs) |
| 61 int _code_offset; // offset to where instructions region begins (this includes insts, stubs) | |
| 0 | 62 int _frame_complete_offset; // instruction offsets in [0.._frame_complete_offset) have |
| 63 // not finished setting up their frame. Beware of pc's in | |
| 64 // that range. There is a similar range(s) on returns | |
| 65 // which we don't detect. | |
| 66 int _data_offset; // offset to where data region begins | |
| 67 int _frame_size; // size of stack frame | |
| 68 OopMapSet* _oop_maps; // OopMap for this CodeBlob | |
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69 CodeStrings _strings; |
| 0 | 70 |
| 71 public: | |
| 72 // Returns the space needed for CodeBlob | |
| 73 static unsigned int allocation_size(CodeBuffer* cb, int header_size); | |
| 74 | |
| 75 // Creation | |
| 76 // a) simple CodeBlob | |
| 77 // frame_complete is the offset from the beginning of the instructions | |
| 78 // to where the frame setup (from stackwalk viewpoint) is complete. | |
| 79 CodeBlob(const char* name, int header_size, int size, int frame_complete, int locs_size); | |
| 80 | |
| 81 // b) full CodeBlob | |
| 82 CodeBlob( | |
| 83 const char* name, | |
| 84 CodeBuffer* cb, | |
| 85 int header_size, | |
| 86 int size, | |
| 87 int frame_complete, | |
| 88 int frame_size, | |
| 89 OopMapSet* oop_maps | |
| 90 ); | |
| 91 | |
| 92 // Deletion | |
| 93 void flush(); | |
| 94 | |
| 95 // Typing | |
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96 virtual bool is_buffer_blob() const { return false; } |
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97 virtual bool is_nmethod() const { return false; } |
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98 virtual bool is_runtime_stub() const { return false; } |
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99 virtual bool is_deoptimization_stub() const { return false; } |
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100 virtual bool is_uncommon_trap_stub() const { return false; } |
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101 virtual bool is_exception_stub() const { return false; } |
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102 virtual bool is_safepoint_stub() const { return false; } |
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103 virtual bool is_adapter_blob() const { return false; } |
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104 virtual bool is_method_handles_adapter_blob() const { return false; } |
| 0 | 105 |
| 106 virtual bool is_compiled_by_c2() const { return false; } | |
| 107 virtual bool is_compiled_by_c1() const { return false; } | |
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108 virtual bool is_compiled_by_jvmci() const { return false; } |
| 0 | 109 |
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110 // Casting |
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111 nmethod* as_nmethod_or_null() { return is_nmethod() ? (nmethod*) this : NULL; } |
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112 |
| 0 | 113 // Boundaries |
| 114 address header_begin() const { return (address) this; } | |
| 115 address header_end() const { return ((address) this) + _header_size; }; | |
| 116 relocInfo* relocation_begin() const { return (relocInfo*) header_end(); }; | |
| 117 relocInfo* relocation_end() const { return (relocInfo*)(header_end() + _relocation_size); } | |
| 1748 | 118 address content_begin() const { return (address) header_begin() + _content_offset; } |
| 119 address content_end() const { return (address) header_begin() + _data_offset; } | |
| 120 address code_begin() const { return (address) header_begin() + _code_offset; } | |
| 121 address code_end() const { return (address) header_begin() + _data_offset; } | |
| 0 | 122 address data_begin() const { return (address) header_begin() + _data_offset; } |
| 123 address data_end() const { return (address) header_begin() + _size; } | |
| 124 | |
| 125 // Offsets | |
| 126 int relocation_offset() const { return _header_size; } | |
| 1748 | 127 int content_offset() const { return _content_offset; } |
| 128 int code_offset() const { return _code_offset; } | |
| 0 | 129 int data_offset() const { return _data_offset; } |
| 130 | |
| 131 // Sizes | |
| 132 int size() const { return _size; } | |
| 133 int header_size() const { return _header_size; } | |
| 134 int relocation_size() const { return (address) relocation_end() - (address) relocation_begin(); } | |
| 1748 | 135 int content_size() const { return content_end() - content_begin(); } |
| 136 int code_size() const { return code_end() - code_begin(); } | |
| 137 int data_size() const { return data_end() - data_begin(); } | |
| 0 | 138 |
| 139 // Containment | |
| 1748 | 140 bool blob_contains(address addr) const { return header_begin() <= addr && addr < data_end(); } |
| 0 | 141 bool relocation_contains(relocInfo* addr) const{ return relocation_begin() <= addr && addr < relocation_end(); } |
| 1748 | 142 bool content_contains(address addr) const { return content_begin() <= addr && addr < content_end(); } |
| 143 bool code_contains(address addr) const { return code_begin() <= addr && addr < code_end(); } | |
| 144 bool data_contains(address addr) const { return data_begin() <= addr && addr < data_end(); } | |
| 145 bool contains(address addr) const { return content_contains(addr); } | |
| 146 bool is_frame_complete_at(address addr) const { return code_contains(addr) && | |
| 147 addr >= code_begin() + _frame_complete_offset; } | |
| 0 | 148 |
| 149 // CodeCache support: really only used by the nmethods, but in order to get | |
| 150 // asserts and certain bookkeeping to work in the CodeCache they are defined | |
| 151 // virtual here. | |
| 152 virtual bool is_zombie() const { return false; } | |
| 153 virtual bool is_locked_by_vm() const { return false; } | |
| 154 | |
| 155 virtual bool is_unloaded() const { return false; } | |
| 156 virtual bool is_not_entrant() const { return false; } | |
| 157 | |
| 158 // GC support | |
| 159 virtual bool is_alive() const = 0; | |
| 160 | |
| 161 // OopMap for frame | |
| 162 OopMapSet* oop_maps() const { return _oop_maps; } | |
| 163 void set_oop_maps(OopMapSet* p); | |
| 164 OopMap* oop_map_for_return_address(address return_address); | |
| 165 virtual void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, OopClosure* f) { ShouldNotReachHere(); } | |
| 166 | |
| 167 // Frame support | |
| 168 int frame_size() const { return _frame_size; } | |
| 169 void set_frame_size(int size) { _frame_size = size; } | |
| 170 | |
| 171 // Returns true, if the next frame is responsible for GC'ing oops passed as arguments | |
| 172 virtual bool caller_must_gc_arguments(JavaThread* thread) const { return false; } | |
| 173 | |
| 174 // Naming | |
| 175 const char* name() const { return _name; } | |
| 176 void set_name(const char* name) { _name = name; } | |
| 177 | |
| 178 // Debugging | |
| 179 virtual void verify(); | |
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180 void print() const { print_on(tty); } |
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181 virtual void print_on(outputStream* st) const; |
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182 virtual void print_value_on(outputStream* st) const; |
| 0 | 183 |
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184 // Deal with Disassembler, VTune, Forte, JvmtiExport, MemoryService. |
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185 static void trace_new_stub(CodeBlob* blob, const char* name1, const char* name2 = ""); |
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186 |
| 0 | 187 // Print the comment associated with offset on stream, if there is one |
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188 virtual void print_block_comment(outputStream* stream, address block_begin) const { |
| 1748 | 189 intptr_t offset = (intptr_t)(block_begin - code_begin()); |
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190 _strings.print_block_comment(stream, offset); |
| 0 | 191 } |
| 192 | |
| 193 // Transfer ownership of comments to this CodeBlob | |
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194 void set_strings(CodeStrings& strings) { |
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195 _strings.assign(strings); |
| 0 | 196 } |
| 197 }; | |
| 198 | |
| 199 | |
| 200 //---------------------------------------------------------------------------------------------------- | |
| 201 // BufferBlob: used to hold non-relocatable machine code such as the interpreter, stubroutines, etc. | |
| 202 | |
| 203 class BufferBlob: public CodeBlob { | |
| 204 friend class VMStructs; | |
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205 friend class AdapterBlob; |
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206 friend class MethodHandlesAdapterBlob; |
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207 |
| 0 | 208 private: |
| 209 // Creation support | |
| 210 BufferBlob(const char* name, int size); | |
| 211 BufferBlob(const char* name, int size, CodeBuffer* cb); | |
| 212 | |
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213 void* operator new(size_t s, unsigned size, bool is_critical = false) throw(); |
| 0 | 214 |
| 215 public: | |
| 216 // Creation | |
| 217 static BufferBlob* create(const char* name, int buffer_size); | |
| 218 static BufferBlob* create(const char* name, CodeBuffer* cb); | |
| 219 | |
| 220 static void free(BufferBlob* buf); | |
| 221 | |
| 222 // Typing | |
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223 virtual bool is_buffer_blob() const { return true; } |
| 0 | 224 |
| 225 // GC/Verification support | |
| 226 void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, OopClosure* f) { /* nothing to do */ } | |
| 227 bool is_alive() const { return true; } | |
| 228 | |
| 229 void verify(); | |
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230 void print_on(outputStream* st) const; |
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231 void print_value_on(outputStream* st) const; |
| 0 | 232 }; |
| 233 | |
| 234 | |
| 235 //---------------------------------------------------------------------------------------------------- | |
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236 // AdapterBlob: used to hold C2I/I2C adapters |
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237 |
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238 class AdapterBlob: public BufferBlob { |
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239 private: |
| 1663 | 240 AdapterBlob(int size, CodeBuffer* cb); |
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241 |
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242 public: |
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243 // Creation |
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244 static AdapterBlob* create(CodeBuffer* cb); |
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245 |
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246 // Typing |
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247 virtual bool is_adapter_blob() const { return true; } |
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248 }; |
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249 |
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250 |
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251 //---------------------------------------------------------------------------------------------------- |
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252 // MethodHandlesAdapterBlob: used to hold MethodHandles adapters |
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253 |
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254 class MethodHandlesAdapterBlob: public BufferBlob { |
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255 private: |
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256 MethodHandlesAdapterBlob(int size) : BufferBlob("MethodHandles adapters", size) {} |
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257 |
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258 public: |
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259 // Creation |
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260 static MethodHandlesAdapterBlob* create(int buffer_size); |
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261 |
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262 // Typing |
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263 virtual bool is_method_handles_adapter_blob() const { return true; } |
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264 }; |
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265 |
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266 |
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267 //---------------------------------------------------------------------------------------------------- |
| 0 | 268 // RuntimeStub: describes stubs used by compiled code to call a (static) C++ runtime routine |
| 269 | |
| 270 class RuntimeStub: public CodeBlob { | |
| 271 friend class VMStructs; | |
| 272 private: | |
| 273 bool _caller_must_gc_arguments; | |
| 274 | |
| 275 // Creation support | |
| 276 RuntimeStub( | |
| 277 const char* name, | |
| 278 CodeBuffer* cb, | |
| 279 int size, | |
| 280 int frame_complete, | |
| 281 int frame_size, | |
| 282 OopMapSet* oop_maps, | |
| 283 bool caller_must_gc_arguments | |
| 284 ); | |
| 285 | |
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286 void* operator new(size_t s, unsigned size) throw(); |
| 0 | 287 |
| 288 public: | |
| 289 // Creation | |
| 290 static RuntimeStub* new_runtime_stub( | |
| 291 const char* stub_name, | |
| 292 CodeBuffer* cb, | |
| 293 int frame_complete, | |
| 294 int frame_size, | |
| 295 OopMapSet* oop_maps, | |
| 296 bool caller_must_gc_arguments | |
| 297 ); | |
| 298 | |
| 299 // Typing | |
| 300 bool is_runtime_stub() const { return true; } | |
| 301 | |
| 302 // GC support | |
| 303 bool caller_must_gc_arguments(JavaThread* thread) const { return _caller_must_gc_arguments; } | |
| 304 | |
| 1748 | 305 address entry_point() { return code_begin(); } |
| 0 | 306 |
| 307 // GC/Verification support | |
| 308 void preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { /* nothing to do */ } | |
| 309 bool is_alive() const { return true; } | |
| 310 | |
| 311 void verify(); | |
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312 void print_on(outputStream* st) const; |
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313 void print_value_on(outputStream* st) const; |
| 0 | 314 }; |
| 315 | |
| 316 | |
| 317 //---------------------------------------------------------------------------------------------------- | |
| 318 // Super-class for all blobs that exist in only one instance. Implements default behaviour. | |
| 319 | |
| 320 class SingletonBlob: public CodeBlob { | |
| 321 friend class VMStructs; | |
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322 |
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323 protected: |
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324 void* operator new(size_t s, unsigned size) throw(); |
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325 |
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326 public: |
| 0 | 327 SingletonBlob( |
| 328 const char* name, | |
| 329 CodeBuffer* cb, | |
| 330 int header_size, | |
| 331 int size, | |
| 332 int frame_size, | |
| 333 OopMapSet* oop_maps | |
| 334 ) | |
| 335 : CodeBlob(name, cb, header_size, size, CodeOffsets::frame_never_safe, frame_size, oop_maps) | |
| 1748 | 336 {}; |
| 0 | 337 |
| 1748 | 338 address entry_point() { return code_begin(); } |
| 0 | 339 |
| 1748 | 340 bool is_alive() const { return true; } |
| 341 | |
| 342 void verify(); // does nothing | |
| 343 void print_on(outputStream* st) const; | |
| 344 void print_value_on(outputStream* st) const; | |
| 0 | 345 }; |
| 346 | |
| 347 | |
| 348 //---------------------------------------------------------------------------------------------------- | |
| 349 // DeoptimizationBlob | |
| 350 | |
| 351 class DeoptimizationBlob: public SingletonBlob { | |
| 352 friend class VMStructs; | |
| 353 private: | |
| 354 int _unpack_offset; | |
| 355 int _unpack_with_exception; | |
| 356 int _unpack_with_reexecution; | |
| 357 | |
| 358 int _unpack_with_exception_in_tls; | |
| 359 | |
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360 #ifdef JVMCI |
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361 // (thomaswue) Offset when JVMCI calls uncommon_trap. |
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362 int _uncommon_trap_offset; |
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363 int _implicit_exception_uncommon_trap_offset; |
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364 #endif |
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365 |
| 0 | 366 // Creation support |
| 367 DeoptimizationBlob( | |
| 368 CodeBuffer* cb, | |
| 369 int size, | |
| 370 OopMapSet* oop_maps, | |
| 371 int unpack_offset, | |
| 372 int unpack_with_exception_offset, | |
| 373 int unpack_with_reexecution_offset, | |
| 374 int frame_size | |
| 375 ); | |
| 376 | |
| 377 public: | |
| 378 // Creation | |
| 379 static DeoptimizationBlob* create( | |
| 380 CodeBuffer* cb, | |
| 381 OopMapSet* oop_maps, | |
| 382 int unpack_offset, | |
| 383 int unpack_with_exception_offset, | |
| 384 int unpack_with_reexecution_offset, | |
| 385 int frame_size | |
| 386 ); | |
| 387 | |
| 388 // Typing | |
| 389 bool is_deoptimization_stub() const { return true; } | |
| 390 bool exception_address_is_unpack_entry(address pc) const { | |
| 391 address unpack_pc = unpack(); | |
| 392 return (pc == unpack_pc || (pc + frame::pc_return_offset) == unpack_pc); | |
| 393 } | |
| 394 | |
| 395 | |
| 396 | |
| 397 | |
| 398 // GC for args | |
| 399 void preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { /* Nothing to do */ } | |
| 400 | |
| 401 // Printing | |
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402 void print_value_on(outputStream* st) const; |
| 0 | 403 |
| 1748 | 404 address unpack() const { return code_begin() + _unpack_offset; } |
| 405 address unpack_with_exception() const { return code_begin() + _unpack_with_exception; } | |
| 406 address unpack_with_reexecution() const { return code_begin() + _unpack_with_reexecution; } | |
| 0 | 407 |
| 408 // Alternate entry point for C1 where the exception and issuing pc | |
| 409 // are in JavaThread::_exception_oop and JavaThread::_exception_pc | |
| 410 // instead of being in registers. This is needed because C1 doesn't | |
| 411 // model exception paths in a way that keeps these registers free so | |
| 412 // there may be live values in those registers during deopt. | |
| 413 void set_unpack_with_exception_in_tls_offset(int offset) { | |
| 414 _unpack_with_exception_in_tls = offset; | |
| 1748 | 415 assert(code_contains(code_begin() + _unpack_with_exception_in_tls), "must be PC inside codeblob"); |
| 0 | 416 } |
| 1748 | 417 address unpack_with_exception_in_tls() const { return code_begin() + _unpack_with_exception_in_tls; } |
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418 |
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419 #ifdef JVMCI |
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420 // (thomaswue) Offset when JVMCI calls uncommon_trap. |
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421 void set_uncommon_trap_offset(int offset) { |
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422 _uncommon_trap_offset = offset; |
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423 assert(contains(code_begin() + _uncommon_trap_offset), "must be PC inside codeblob"); |
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424 } |
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425 address uncommon_trap() const { return code_begin() + _uncommon_trap_offset; } |
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426 |
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427 void set_implicit_exception_uncommon_trap_offset(int offset) { |
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428 _implicit_exception_uncommon_trap_offset = offset; |
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429 assert(contains(code_begin() + _implicit_exception_uncommon_trap_offset), "must be PC inside codeblob"); |
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430 } |
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431 address implicit_exception_uncommon_trap() const { return code_begin() + _implicit_exception_uncommon_trap_offset; } |
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432 #endif |
| 0 | 433 }; |
| 434 | |
| 435 | |
| 436 //---------------------------------------------------------------------------------------------------- | |
| 437 // UncommonTrapBlob (currently only used by Compiler 2) | |
| 438 | |
| 439 #ifdef COMPILER2 | |
| 440 | |
| 441 class UncommonTrapBlob: public SingletonBlob { | |
| 442 friend class VMStructs; | |
| 443 private: | |
| 444 // Creation support | |
| 445 UncommonTrapBlob( | |
| 446 CodeBuffer* cb, | |
| 447 int size, | |
| 448 OopMapSet* oop_maps, | |
| 449 int frame_size | |
| 450 ); | |
| 451 | |
| 452 public: | |
| 453 // Creation | |
| 454 static UncommonTrapBlob* create( | |
| 455 CodeBuffer* cb, | |
| 456 OopMapSet* oop_maps, | |
| 457 int frame_size | |
| 458 ); | |
| 459 | |
| 460 // GC for args | |
| 461 void preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { /* nothing to do */ } | |
| 462 | |
| 463 // Typing | |
| 464 bool is_uncommon_trap_stub() const { return true; } | |
| 465 }; | |
| 466 | |
| 467 | |
| 468 //---------------------------------------------------------------------------------------------------- | |
| 469 // ExceptionBlob: used for exception unwinding in compiled code (currently only used by Compiler 2) | |
| 470 | |
| 471 class ExceptionBlob: public SingletonBlob { | |
| 472 friend class VMStructs; | |
| 473 private: | |
| 474 // Creation support | |
| 475 ExceptionBlob( | |
| 476 CodeBuffer* cb, | |
| 477 int size, | |
| 478 OopMapSet* oop_maps, | |
| 479 int frame_size | |
| 480 ); | |
| 481 | |
| 482 public: | |
| 483 // Creation | |
| 484 static ExceptionBlob* create( | |
| 485 CodeBuffer* cb, | |
| 486 OopMapSet* oop_maps, | |
| 487 int frame_size | |
| 488 ); | |
| 489 | |
| 490 // GC for args | |
| 491 void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, OopClosure* f) { /* nothing to do */ } | |
| 492 | |
| 493 // Typing | |
| 494 bool is_exception_stub() const { return true; } | |
| 495 }; | |
| 496 #endif // COMPILER2 | |
| 497 | |
| 498 | |
| 499 //---------------------------------------------------------------------------------------------------- | |
| 500 // SafepointBlob: handles illegal_instruction exceptions during a safepoint | |
| 501 | |
| 502 class SafepointBlob: public SingletonBlob { | |
| 503 friend class VMStructs; | |
| 504 private: | |
| 505 // Creation support | |
| 506 SafepointBlob( | |
| 507 CodeBuffer* cb, | |
| 508 int size, | |
| 509 OopMapSet* oop_maps, | |
| 510 int frame_size | |
| 511 ); | |
| 512 | |
| 513 public: | |
| 514 // Creation | |
| 515 static SafepointBlob* create( | |
| 516 CodeBuffer* cb, | |
| 517 OopMapSet* oop_maps, | |
| 518 int frame_size | |
| 519 ); | |
| 520 | |
| 521 // GC for args | |
| 522 void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, OopClosure* f) { /* nothing to do */ } | |
| 523 | |
| 524 // Typing | |
| 525 bool is_safepoint_stub() const { return true; } | |
| 526 }; | |
| 1972 | 527 |
| 528 #endif // SHARE_VM_CODE_CODEBLOB_HPP |